diff --git a/Android.bp b/Android.bp
index 3992f82..81d0615 100644
--- a/Android.bp
+++ b/Android.bp
@@ -89,6 +89,12 @@
     ],
 }
 
+aidl_library {
+    name: "PersistableBundle_aidl",
+    hdrs: ["aidl/binder/android/os/PersistableBundle.aidl"],
+    strip_import_prefix: "aidl/binder",
+}
+
 cc_library_headers {
     name: "libandroid_headers_private",
     export_include_dirs: ["include/private"],
diff --git a/TEST_MAPPING b/TEST_MAPPING
index cd8f3cd..9c01169 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -7,7 +7,8 @@
           "include-filter": "*"
         },
         {
-          "exclude-filter": "*ChildLayerTest#ChildrenSurviveParentDestruction"
+          // TODO(b/305717998): Deflake and re-enable
+          "exclude-filter": "*ChildLayerTest*"
         }
       ]
     },
diff --git a/aidl/binder/android/os/PersistableBundle.aidl b/aidl/binder/android/os/PersistableBundle.aidl
index 493ecb4..248e973 100644
--- a/aidl/binder/android/os/PersistableBundle.aidl
+++ b/aidl/binder/android/os/PersistableBundle.aidl
@@ -17,4 +17,4 @@
 
 package android.os;
 
-@JavaOnlyStableParcelable parcelable PersistableBundle cpp_header "binder/PersistableBundle.h";
+@JavaOnlyStableParcelable @NdkOnlyStableParcelable parcelable PersistableBundle cpp_header "binder/PersistableBundle.h" ndk_header "android/persistable_bundle_aidl.h";
diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index 073d0c4..1347450 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -472,6 +472,49 @@
     return NO_ERROR;
 }
 
+constexpr const char kXattrRestoreconInProgress[] = "user.restorecon_in_progress";
+
+static std::string lgetfilecon(const std::string& path) {
+    char* context;
+    if (::lgetfilecon(path.c_str(), &context) < 0) {
+        PLOG(ERROR) << "Failed to lgetfilecon for " << path;
+        return {};
+    }
+    std::string result{context};
+    free(context);
+    return result;
+}
+
+static bool getRestoreconInProgress(const std::string& path) {
+    bool inProgress = false;
+    if (getxattr(path.c_str(), kXattrRestoreconInProgress, &inProgress, sizeof(inProgress)) !=
+        sizeof(inProgress)) {
+        if (errno != ENODATA) {
+            PLOG(ERROR) << "Failed to check in-progress restorecon for " << path;
+        }
+        return false;
+    }
+    return inProgress;
+}
+
+struct RestoreconInProgress {
+    explicit RestoreconInProgress(const std::string& path) : mPath(path) {
+        bool inProgress = true;
+        if (setxattr(mPath.c_str(), kXattrRestoreconInProgress, &inProgress, sizeof(inProgress),
+                     0) != 0) {
+            PLOG(ERROR) << "Failed to set in-progress restorecon for " << path;
+        }
+    }
+    ~RestoreconInProgress() {
+        if (removexattr(mPath.c_str(), kXattrRestoreconInProgress) < 0) {
+            PLOG(ERROR) << "Failed to clear in-progress restorecon for " << mPath;
+        }
+    }
+
+private:
+    const std::string& mPath;
+};
+
 /**
  * Perform restorecon of the given path, but only perform recursive restorecon
  * if the label of that top-level file actually changed.  This can save us
@@ -480,56 +523,56 @@
 static int restorecon_app_data_lazy(const std::string& path, const std::string& seInfo, uid_t uid,
         bool existing) {
     ScopedTrace tracer("restorecon-lazy");
-    int res = 0;
-    char* before = nullptr;
-    char* after = nullptr;
     if (!existing) {
         ScopedTrace tracer("new-path");
         if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid,
                 SELINUX_ANDROID_RESTORECON_RECURSE) < 0) {
             PLOG(ERROR) << "Failed recursive restorecon for " << path;
-            goto fail;
+            return -1;
         }
-        return res;
+        return 0;
     }
 
-    // Note that SELINUX_ANDROID_RESTORECON_DATADATA flag is set by
-    // libselinux. Not needed here.
-    if (lgetfilecon(path.c_str(), &before) < 0) {
-        PLOG(ERROR) << "Failed before getfilecon for " << path;
-        goto fail;
-    }
-    if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid, 0) < 0) {
-        PLOG(ERROR) << "Failed top-level restorecon for " << path;
-        goto fail;
-    }
-    if (lgetfilecon(path.c_str(), &after) < 0) {
-        PLOG(ERROR) << "Failed after getfilecon for " << path;
-        goto fail;
+    // Note that SELINUX_ANDROID_RESTORECON_DATADATA flag is set by libselinux. Not needed here.
+
+    // Check to see if there was an interrupted operation.
+    bool inProgress = getRestoreconInProgress(path);
+    std::string before, after;
+    if (!inProgress) {
+        if (before = lgetfilecon(path); before.empty()) {
+            PLOG(ERROR) << "Failed before getfilecon for " << path;
+            return -1;
+        }
+        if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid, 0) < 0) {
+            PLOG(ERROR) << "Failed top-level restorecon for " << path;
+            return -1;
+        }
+        if (after = lgetfilecon(path); after.empty()) {
+            PLOG(ERROR) << "Failed after getfilecon for " << path;
+            return -1;
+        }
     }
 
     // If the initial top-level restorecon above changed the label, then go
     // back and restorecon everything recursively
-    if (strcmp(before, after)) {
+    if (inProgress || before != after) {
         ScopedTrace tracer("label-change");
         if (existing) {
             LOG(DEBUG) << "Detected label change from " << before << " to " << after << " at "
                     << path << "; running recursive restorecon";
         }
+
+        // Temporary mark the folder as "in-progress" to resume in case of reboot/other failure.
+        RestoreconInProgress fence(path);
+
         if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid,
                 SELINUX_ANDROID_RESTORECON_RECURSE) < 0) {
             PLOG(ERROR) << "Failed recursive restorecon for " << path;
-            goto fail;
+            return -1;
         }
     }
 
-    goto done;
-fail:
-    res = -1;
-done:
-    free(before);
-    free(after);
-    return res;
+    return 0;
 }
 static bool internal_storage_has_project_id() {
     // The following path is populated in setFirstBoot, so if this file is present
@@ -3295,7 +3338,7 @@
     }
 
     char *con = nullptr;
-    if (lgetfilecon(pkgdir, &con) < 0) {
+    if (::lgetfilecon(pkgdir, &con) < 0) {
         return error("Failed to lgetfilecon " + _pkgdir);
     }
 
diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index 822ab7f..8eb7458 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -514,6 +514,8 @@
         // Make sure dex2oat is run with background priority.
         dexopt_flags |= DEXOPT_BOOTCOMPLETE | DEXOPT_IDLE_BACKGROUND_JOB;
 
+        parameters_.compilation_reason = "ab-ota";
+
         int res = dexopt(parameters_.apk_path,
                          parameters_.uid,
                          parameters_.pkgName,
diff --git a/cmds/installd/otapreopt_chroot.cpp b/cmds/installd/otapreopt_chroot.cpp
index c40caf5..c86adef 100644
--- a/cmds/installd/otapreopt_chroot.cpp
+++ b/cmds/installd/otapreopt_chroot.cpp
@@ -353,7 +353,7 @@
     // Now go on and read dexopt lines from stdin and pass them on to otapreopt.
 
     int count = 1;
-    for (std::array<char, 1000> linebuf;
+    for (std::array<char, 10000> linebuf;
          std::cin.clear(), std::cin.getline(&linebuf[0], linebuf.size()); ++count) {
         // Subtract one from gcount() since getline() counts the newline.
         std::string line(&linebuf[0], std::cin.gcount() - 1);
diff --git a/cmds/servicemanager/Android.bp b/cmds/servicemanager/Android.bp
index d73a30b..e00c2a2 100644
--- a/cmds/servicemanager/Android.bp
+++ b/cmds/servicemanager/Android.bp
@@ -24,7 +24,6 @@
 
     shared_libs: [
         "libbase",
-        "libbinder", // also contains servicemanager_interface
         "libvintf",
         "libcutils",
         "liblog",
@@ -33,6 +32,21 @@
     ],
 
     target: {
+        android: {
+            shared_libs: [
+                "libbinder",
+                "libutils",
+            ],
+        },
+        host: {
+            static_libs: [
+                "libbinder",
+                "libutils",
+            ],
+        },
+        darwin: {
+            enabled: false,
+        },
         vendor: {
             exclude_shared_libs: ["libvintf"],
         },
diff --git a/data/etc/Android.bp b/data/etc/Android.bp
index e95432c..e65aa5d 100644
--- a/data/etc/Android.bp
+++ b/data/etc/Android.bp
@@ -131,6 +131,24 @@
 }
 
 prebuilt_etc {
+    name: "android.hardware.se.omapi.ese.prebuilt.xml",
+    src: "android.hardware.se.omapi.ese.xml",
+    defaults: ["frameworks_native_data_etc_defaults"],
+}
+
+prebuilt_etc {
+    name: "android.hardware.se.omapi.sd.prebuilt.xml",
+    src: "android.hardware.se.omapi.sd.xml",
+    defaults: ["frameworks_native_data_etc_defaults"],
+}
+
+prebuilt_etc {
+    name: "android.hardware.se.omapi.uicc.prebuilt.xml",
+    src: "android.hardware.se.omapi.uicc.xml",
+    defaults: ["frameworks_native_data_etc_defaults"],
+}
+
+prebuilt_etc {
     name: "android.hardware.sensor.accelerometer_limited_axes_uncalibrated.prebuilt.xml",
     src: "android.hardware.sensor.accelerometer_limited_axes_uncalibrated.xml",
     defaults: ["frameworks_native_data_etc_defaults"],
@@ -359,6 +377,12 @@
 }
 
 prebuilt_etc {
+    name: "android.software.opengles.deqp.level-latest.prebuilt.xml",
+    src: "android.software.opengles.deqp.level-latest.xml",
+    defaults: ["frameworks_native_data_etc_defaults"],
+}
+
+prebuilt_etc {
     name: "android.software.sip.voip.prebuilt.xml",
     src: "android.software.sip.voip.xml",
     defaults: ["frameworks_native_data_etc_defaults"],
@@ -389,6 +413,12 @@
 }
 
 prebuilt_etc {
+    name: "android.software.vulkan.deqp.level-latest.prebuilt.xml",
+    src: "android.software.vulkan.deqp.level-latest.xml",
+    defaults: ["frameworks_native_data_etc_defaults"],
+}
+
+prebuilt_etc {
     name: "aosp_excluded_hardware.prebuilt.xml",
     src: "aosp_excluded_hardware.xml",
     defaults: ["frameworks_native_data_etc_defaults"],
diff --git a/data/etc/android.software.opengles.deqp.level-latest.xml b/data/etc/android.software.opengles.deqp.level-latest.xml
new file mode 100644
index 0000000..bd15eb6
--- /dev/null
+++ b/data/etc/android.software.opengles.deqp.level-latest.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2023 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<!-- This is the standard feature indicating that the device passes OpenGL ES
+     dEQP tests associated with the most recent level for this Android version. -->
+<permissions>
+    <feature name="android.software.opengles.deqp.level" version="132580097" />
+</permissions>
diff --git a/data/etc/android.software.vulkan.deqp.level-latest.xml b/data/etc/android.software.vulkan.deqp.level-latest.xml
new file mode 100644
index 0000000..87be070
--- /dev/null
+++ b/data/etc/android.software.vulkan.deqp.level-latest.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2023 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<!-- This is the standard feature indicating that the device passes Vulkan
+     dEQP tests associated with the most recent level for this Android version. -->
+<permissions>
+    <feature name="android.software.vulkan.deqp.level" version="132580097" />
+</permissions>
diff --git a/data/etc/aosp_excluded_hardware.xml b/data/etc/aosp_excluded_hardware.xml
index c12f435..013f278 100644
--- a/data/etc/aosp_excluded_hardware.xml
+++ b/data/etc/aosp_excluded_hardware.xml
@@ -18,5 +18,4 @@
     <!-- This should be used to exclude this feature from aosp targets. As aosp configurations
     may or may not have a valid location provider -->
     <unavailable-feature name="android.hardware.location.network" />
-    <unavailable-feature name="android.software.device_id_attestation" />
 </permissions>
diff --git a/include/binder/unique_fd.h b/include/binder/unique_fd.h
new file mode 120000
index 0000000..433c968
--- /dev/null
+++ b/include/binder/unique_fd.h
@@ -0,0 +1 @@
+../../libs/binder/include/binder/unique_fd.h
\ No newline at end of file
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
index 4f53c36..59b9495 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -240,7 +240,7 @@
                                                 android::base::unique_fd fd, sp<IBinder> token);
     InputChannel() = default;
     InputChannel(const InputChannel& other)
-          : mName(other.mName), mFd(::dup(other.mFd)), mToken(other.mToken){};
+          : mName(other.mName), mFd(other.dupFd()), mToken(other.mToken){};
     InputChannel(const std::string name, android::base::unique_fd fd, sp<IBinder> token);
     ~InputChannel() override;
     /**
@@ -310,7 +310,7 @@
         if (fstat(mFd.get(), &lhs) != 0) {
             return false;
         }
-        if (fstat(inputChannel.getFd(), &rhs) != 0) {
+        if (fstat(inputChannel.getFd().get(), &rhs) != 0) {
             return false;
         }
         // If file descriptors are pointing to same inode they are duplicated fds.
@@ -322,7 +322,7 @@
     base::unique_fd dupFd() const;
 
     std::string mName;
-    android::base::unique_fd mFd;
+    base::unique_fd mFd;
 
     sp<IBinder> mToken;
 };
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index 6c2b313..eccd5db 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -92,6 +92,7 @@
         "TextOutput.cpp",
         "Trace.cpp",
         "Utils.cpp",
+        "file.cpp",
     ],
 
     shared_libs: [
@@ -118,7 +119,8 @@
     ],
 
     srcs: [
-        "OS.cpp",
+        "OS_android.cpp",
+        "OS_unix_base.cpp",
         "RpcTransportRaw.cpp",
     ],
 
@@ -249,13 +251,16 @@
 
     srcs: [
         // Trusty-specific files
-        "trusty/logging.cpp",
+        "OS_android.cpp",
         "trusty/OS.cpp",
         "trusty/RpcServerTrusty.cpp",
         "trusty/RpcTransportTipcTrusty.cpp",
         "trusty/TrustyStatus.cpp",
         "trusty/socket.cpp",
     ],
+    shared_libs: [
+        "liblog",
+    ],
 }
 
 cc_defaults {
@@ -357,6 +362,38 @@
 }
 
 cc_library_static {
+    name: "libbinder_rpc_no_blob",
+    vendor_available: true,
+    defaults: [
+        "libbinder_common_defaults",
+        "libbinder_android_defaults",
+        "libbinder_kernel_defaults",
+    ],
+    cflags: [
+        "-DBINDER_DISABLE_BLOB",
+    ],
+    visibility: [
+        ":__subpackages__",
+    ],
+}
+
+cc_library_static {
+    name: "libbinder_rpc_no_native_handle",
+    vendor_available: true,
+    defaults: [
+        "libbinder_common_defaults",
+        "libbinder_android_defaults",
+        "libbinder_kernel_defaults",
+    ],
+    cflags: [
+        "-DBINDER_DISABLE_NATIVE_HANDLE",
+    ],
+    visibility: [
+        ":__subpackages__",
+    ],
+}
+
+cc_library_static {
     name: "libbinder_rpc_single_threaded",
     defaults: [
         "libbinder_common_defaults",
@@ -617,4 +654,7 @@
         "libutils",
         "android.debug_aidl-cpp",
     ],
+    static_libs: [
+        "libc++fs",
+    ],
 }
diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index aa67869..c57c9cd 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp
@@ -19,8 +19,6 @@
 #include <atomic>
 #include <set>
 
-#include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <binder/BpBinder.h>
 #include <binder/IInterface.h>
 #include <binder/IPCThreadState.h>
@@ -29,9 +27,8 @@
 #include <binder/Parcel.h>
 #include <binder/RecordedTransaction.h>
 #include <binder/RpcServer.h>
-#include <private/android_filesystem_config.h>
+#include <binder/unique_fd.h>
 #include <pthread.h>
-#include <utils/misc.h>
 
 #include <inttypes.h>
 #include <stdio.h>
@@ -41,10 +38,15 @@
 #endif
 
 #include "BuildFlags.h"
+#include "OS.h"
 #include "RpcState.h"
 
 namespace android {
 
+using android::binder::unique_fd;
+
+constexpr uid_t kUidRoot = 0;
+
 // Service implementations inherit from BBinder and IBinder, and this is frozen
 // in prebuilts.
 #ifdef __LP64__
@@ -167,8 +169,7 @@
     return OK;
 }
 
-status_t IBinder::setRpcClientDebug(android::base::unique_fd socketFd,
-                                    const sp<IBinder>& keepAliveBinder) {
+status_t IBinder::setRpcClientDebug(unique_fd socketFd, const sp<IBinder>& keepAliveBinder) {
     if (!kEnableRpcDevServers) {
         ALOGW("setRpcClientDebug disallowed because RPC is not enabled");
         return INVALID_OPERATION;
@@ -269,11 +270,11 @@
     bool mInheritRt = false;
 
     // for below objects
-    Mutex mLock;
+    RpcMutex mLock;
     std::set<sp<RpcServerLink>> mRpcServerLinks;
     BpBinder::ObjectManager mObjects;
 
-    android::base::unique_fd mRecordingFd;
+    unique_fd mRecordingFd;
 };
 
 // ---------------------------------------------------------------------------
@@ -300,14 +301,14 @@
         return INVALID_OPERATION;
     }
     uid_t uid = IPCThreadState::self()->getCallingUid();
-    if (uid != AID_ROOT) {
+    if (uid != kUidRoot) {
         ALOGE("Binder recording not allowed because client %" PRIu32 " is not root", uid);
         return PERMISSION_DENIED;
     }
     Extras* e = getOrCreateExtras();
-    AutoMutex lock(e->mLock);
+    RpcMutexUniqueLock lock(e->mLock);
     if (mRecordingOn) {
-        LOG(INFO) << "Could not start Binder recording. Another is already in progress.";
+        ALOGI("Could not start Binder recording. Another is already in progress.");
         return INVALID_OPERATION;
     } else {
         status_t readStatus = data.readUniqueFileDescriptor(&(e->mRecordingFd));
@@ -315,7 +316,7 @@
             return readStatus;
         }
         mRecordingOn = true;
-        LOG(INFO) << "Started Binder recording.";
+        ALOGI("Started Binder recording.");
         return NO_ERROR;
     }
 }
@@ -330,19 +331,19 @@
         return INVALID_OPERATION;
     }
     uid_t uid = IPCThreadState::self()->getCallingUid();
-    if (uid != AID_ROOT) {
+    if (uid != kUidRoot) {
         ALOGE("Binder recording not allowed because client %" PRIu32 " is not root", uid);
         return PERMISSION_DENIED;
     }
     Extras* e = getOrCreateExtras();
-    AutoMutex lock(e->mLock);
+    RpcMutexUniqueLock lock(e->mLock);
     if (mRecordingOn) {
         e->mRecordingFd.reset();
         mRecordingOn = false;
-        LOG(INFO) << "Stopped Binder recording.";
+        ALOGI("Stopped Binder recording.");
         return NO_ERROR;
     } else {
-        LOG(INFO) << "Could not stop Binder recording. One is not in progress.";
+        ALOGI("Could not stop Binder recording. One is not in progress.");
         return INVALID_OPERATION;
     }
 }
@@ -376,11 +377,11 @@
             err = stopRecordingTransactions();
             break;
         case EXTENSION_TRANSACTION:
-            CHECK(reply != nullptr);
+            LOG_ALWAYS_FATAL_IF(reply == nullptr, "reply == nullptr");
             err = reply->writeStrongBinder(getExtension());
             break;
         case DEBUG_PID_TRANSACTION:
-            CHECK(reply != nullptr);
+            LOG_ALWAYS_FATAL_IF(reply == nullptr, "reply == nullptr");
             err = reply->writeInt32(getDebugPid());
             break;
         case SET_RPC_CLIENT_TRANSACTION: {
@@ -403,7 +404,7 @@
 
     if (kEnableKernelIpc && mRecordingOn && code != START_RECORDING_TRANSACTION) [[unlikely]] {
         Extras* e = mExtras.load(std::memory_order_acquire);
-        AutoMutex lock(e->mLock);
+        RpcMutexUniqueLock lock(e->mLock);
         if (mRecordingOn) {
             Parcel emptyReply;
             timespec ts;
@@ -413,10 +414,10 @@
                                 reply ? *reply : emptyReply, err);
             if (transaction) {
                 if (status_t err = transaction->dumpToFile(e->mRecordingFd); err != NO_ERROR) {
-                    LOG(INFO) << "Failed to dump RecordedTransaction to file with error " << err;
+                    ALOGI("Failed to dump RecordedTransaction to file with error %d", err);
                 }
             } else {
-                LOG(INFO) << "Failed to create RecordedTransaction object.";
+                ALOGI("Failed to create RecordedTransaction object.");
             }
         }
     }
@@ -450,7 +451,7 @@
     Extras* e = getOrCreateExtras();
     LOG_ALWAYS_FATAL_IF(!e, "no memory");
 
-    AutoMutex _l(e->mLock);
+    RpcMutexUniqueLock _l(e->mLock);
     return e->mObjects.attach(objectID, object, cleanupCookie, func);
 }
 
@@ -459,7 +460,7 @@
     Extras* e = mExtras.load(std::memory_order_acquire);
     if (!e) return nullptr;
 
-    AutoMutex _l(e->mLock);
+    RpcMutexUniqueLock _l(e->mLock);
     return e->mObjects.find(objectID);
 }
 
@@ -467,7 +468,7 @@
     Extras* e = mExtras.load(std::memory_order_acquire);
     if (!e) return nullptr;
 
-    AutoMutex _l(e->mLock);
+    RpcMutexUniqueLock _l(e->mLock);
     return e->mObjects.detach(objectID);
 }
 
@@ -475,7 +476,7 @@
     Extras* e = getOrCreateExtras();
     LOG_ALWAYS_FATAL_IF(!e, "no memory");
 
-    AutoMutex _l(e->mLock);
+    RpcMutexUniqueLock _l(e->mLock);
     doWithLock();
 }
 
@@ -483,7 +484,7 @@
                                         const void* makeArgs) {
     Extras* e = getOrCreateExtras();
     LOG_ALWAYS_FATAL_IF(!e, "no memory");
-    AutoMutex _l(e->mLock);
+    RpcMutexUniqueLock _l(e->mLock);
     return e->mObjects.lookupOrCreateWeak(objectID, make, makeArgs);
 }
 
@@ -634,13 +635,13 @@
         return INVALID_OPERATION;
     }
     uid_t uid = IPCThreadState::self()->getCallingUid();
-    if (uid != AID_ROOT) {
+    if (uid != kUidRoot) {
         ALOGE("%s: not allowed because client %" PRIu32 " is not root", __PRETTY_FUNCTION__, uid);
         return PERMISSION_DENIED;
     }
     status_t status;
     bool hasSocketFd;
-    android::base::unique_fd clientFd;
+    unique_fd clientFd;
 
     if (status = data.readBool(&hasSocketFd); status != OK) return status;
     if (hasSocketFd) {
@@ -652,8 +653,7 @@
     return setRpcClientDebug(std::move(clientFd), keepAliveBinder);
 }
 
-status_t BBinder::setRpcClientDebug(android::base::unique_fd socketFd,
-                                    const sp<IBinder>& keepAliveBinder) {
+status_t BBinder::setRpcClientDebug(unique_fd socketFd, const sp<IBinder>& keepAliveBinder) {
     if (!kEnableRpcDevServers) {
         ALOGW("%s: disallowed because RPC is not enabled", __PRETTY_FUNCTION__);
         return INVALID_OPERATION;
@@ -690,7 +690,7 @@
     auto weakThis = wp<BBinder>::fromExisting(this);
 
     Extras* e = getOrCreateExtras();
-    AutoMutex _l(e->mLock);
+    RpcMutexUniqueLock _l(e->mLock);
     auto rpcServer = RpcServer::make();
     LOG_ALWAYS_FATAL_IF(rpcServer == nullptr, "RpcServer::make returns null");
     auto link = sp<RpcServerLink>::make(rpcServer, keepAliveBinder, weakThis);
@@ -704,7 +704,7 @@
         return status;
     }
     rpcServer->setMaxThreads(binderThreadPoolMaxCount);
-    LOG(INFO) << "RpcBinder: Started Binder debug on " << getInterfaceDescriptor();
+    ALOGI("RpcBinder: Started Binder debug on %s", String8(getInterfaceDescriptor()).c_str());
     rpcServer->start();
     e->mRpcServerLinks.emplace(link);
     LOG_RPC_DETAIL("%s(fd=%d) successful", __PRETTY_FUNCTION__, socketFdForPrint);
@@ -714,7 +714,7 @@
 void BBinder::removeRpcServerLink(const sp<RpcServerLink>& link) {
     Extras* e = mExtras.load(std::memory_order_acquire);
     if (!e) return;
-    AutoMutex _l(e->mLock);
+    RpcMutexUniqueLock _l(e->mLock);
     (void)e->mRpcServerLinks.erase(link);
 }
 
@@ -722,20 +722,20 @@
 {
     if (!wasParceled()) {
         if (getExtension()) {
-             ALOGW("Binder %p destroyed with extension attached before being parceled.", this);
+            ALOGW("Binder %p destroyed with extension attached before being parceled.", this);
         }
         if (isRequestingSid()) {
-             ALOGW("Binder %p destroyed when requesting SID before being parceled.", this);
+            ALOGW("Binder %p destroyed when requesting SID before being parceled.", this);
         }
         if (isInheritRt()) {
-             ALOGW("Binder %p destroyed after setInheritRt before being parceled.", this);
+            ALOGW("Binder %p destroyed after setInheritRt before being parceled.", this);
         }
 #ifdef __linux__
         if (getMinSchedulerPolicy() != SCHED_NORMAL) {
-             ALOGW("Binder %p destroyed after setMinSchedulerPolicy before being parceled.", this);
+            ALOGW("Binder %p destroyed after setMinSchedulerPolicy before being parceled.", this);
         }
         if (getMinSchedulerPriority() != 0) {
-             ALOGW("Binder %p destroyed after setMinSchedulerPolicy before being parceled.", this);
+            ALOGW("Binder %p destroyed after setMinSchedulerPolicy before being parceled.", this);
         }
 #endif // __linux__
     }
@@ -751,7 +751,7 @@
 {
     switch (code) {
         case INTERFACE_TRANSACTION:
-            CHECK(reply != nullptr);
+            LOG_ALWAYS_FATAL_IF(reply == nullptr, "reply == nullptr");
             reply->writeString16(getInterfaceDescriptor());
             return NO_ERROR;
 
@@ -794,7 +794,7 @@
         }
 
         case SYSPROPS_TRANSACTION: {
-            report_sysprop_change();
+            if (!binder::os::report_sysprop_change()) return INVALID_OPERATION;
             return NO_ERROR;
         }
 
diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index 3bc4f92..42dd691 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp
@@ -23,22 +23,22 @@
 #include <binder/IResultReceiver.h>
 #include <binder/RpcSession.h>
 #include <binder/Stability.h>
-#include <utils/Log.h>
 
 #include <stdio.h>
 
 #include "BuildFlags.h"
-
-#include <android-base/file.h>
+#include "file.h"
 
 //#undef ALOGV
 //#define ALOGV(...) fprintf(stderr, __VA_ARGS__)
 
 namespace android {
 
+using android::binder::unique_fd;
+
 // ---------------------------------------------------------------------------
 
-Mutex BpBinder::sTrackingLock;
+RpcMutex BpBinder::sTrackingLock;
 std::unordered_map<int32_t, uint32_t> BpBinder::sTrackingMap;
 std::unordered_map<int32_t, uint32_t> BpBinder::sLastLimitCallbackMap;
 int BpBinder::sNumTrackedUids = 0;
@@ -163,7 +163,7 @@
     int32_t trackedUid = -1;
     if (sCountByUidEnabled) {
         trackedUid = IPCThreadState::self()->getCallingUid();
-        AutoMutex _l(sTrackingLock);
+        RpcMutexUniqueLock _l(sTrackingLock);
         uint32_t trackedValue = sTrackingMap[trackedUid];
         if (trackedValue & LIMIT_REACHED_MASK) [[unlikely]] {
             if (sBinderProxyThrottleCreate) {
@@ -276,7 +276,7 @@
 }
 
 bool BpBinder::isDescriptorCached() const {
-    Mutex::Autolock _l(mLock);
+    RpcMutexUniqueLock _l(mLock);
     return mDescriptorCache.c_str() != kDescriptorUninit.c_str();
 }
 
@@ -292,7 +292,7 @@
         status_t err = thiz->transact(INTERFACE_TRANSACTION, data, &reply);
         if (err == NO_ERROR) {
             String16 res(reply.readString16());
-            Mutex::Autolock _l(mLock);
+            RpcMutexUniqueLock _l(mLock);
             // mDescriptorCache could have been assigned while the lock was
             // released.
             if (mDescriptorCache.c_str() == kDescriptorUninit.c_str()) mDescriptorCache = res;
@@ -319,7 +319,7 @@
     return transact(PING_TRANSACTION, data, &reply);
 }
 
-status_t BpBinder::startRecordingBinder(const android::base::unique_fd& fd) {
+status_t BpBinder::startRecordingBinder(const unique_fd& fd) {
     Parcel send, reply;
     send.writeUniqueFileDescriptor(fd);
     return transact(START_RECORDING_TRANSACTION, send, &reply);
@@ -385,7 +385,7 @@
             status = IPCThreadState::self()->transact(binderHandle(), code, data, reply, flags);
         }
         if (data.dataSize() > LOG_TRANSACTIONS_OVER_SIZE) {
-            Mutex::Autolock _l(mLock);
+            RpcMutexUniqueLock _l(mLock);
             ALOGW("Large outgoing transaction of %zu bytes, interface descriptor %s, code %d",
                   data.dataSize(), String8(mDescriptorCache).c_str(), code);
         }
@@ -431,7 +431,7 @@
                         "linkToDeath(): recipient must be non-NULL");
 
     {
-        AutoMutex _l(mLock);
+        RpcMutexUniqueLock _l(mLock);
 
         if (!mObitsSent) {
             if (!mObituaries) {
@@ -467,7 +467,7 @@
         return INVALID_OPERATION;
     }
 
-    AutoMutex _l(mLock);
+    RpcMutexUniqueLock _l(mLock);
 
     if (mObitsSent) {
         return DEAD_OBJECT;
@@ -555,30 +555,30 @@
 
 void* BpBinder::attachObject(const void* objectID, void* object, void* cleanupCookie,
                              object_cleanup_func func) {
-    AutoMutex _l(mLock);
+    RpcMutexUniqueLock _l(mLock);
     ALOGV("Attaching object %p to binder %p (manager=%p)", object, this, &mObjects);
     return mObjects.attach(objectID, object, cleanupCookie, func);
 }
 
 void* BpBinder::findObject(const void* objectID) const
 {
-    AutoMutex _l(mLock);
+    RpcMutexUniqueLock _l(mLock);
     return mObjects.find(objectID);
 }
 
 void* BpBinder::detachObject(const void* objectID) {
-    AutoMutex _l(mLock);
+    RpcMutexUniqueLock _l(mLock);
     return mObjects.detach(objectID);
 }
 
 void BpBinder::withLock(const std::function<void()>& doWithLock) {
-    AutoMutex _l(mLock);
+    RpcMutexUniqueLock _l(mLock);
     doWithLock();
 }
 
 sp<IBinder> BpBinder::lookupOrCreateWeak(const void* objectID, object_make_func make,
                                          const void* makeArgs) {
-    AutoMutex _l(mLock);
+    RpcMutexUniqueLock _l(mLock);
     return mObjects.lookupOrCreateWeak(objectID, make, makeArgs);
 }
 
@@ -602,7 +602,7 @@
     IPCThreadState* ipc = IPCThreadState::self();
 
     if (mTrackedUid >= 0) {
-        AutoMutex _l(sTrackingLock);
+        RpcMutexUniqueLock _l(sTrackingLock);
         uint32_t trackedValue = sTrackingMap[mTrackedUid];
         if ((trackedValue & COUNTING_VALUE_MASK) == 0) [[unlikely]] {
             ALOGE("Unexpected Binder Proxy tracking decrement in %p handle %d\n", this,
@@ -702,7 +702,7 @@
 
 uint32_t BpBinder::getBinderProxyCount(uint32_t uid)
 {
-    AutoMutex _l(sTrackingLock);
+    RpcMutexUniqueLock _l(sTrackingLock);
     auto it = sTrackingMap.find(uid);
     if (it != sTrackingMap.end()) {
         return it->second & COUNTING_VALUE_MASK;
@@ -717,7 +717,7 @@
 
 void BpBinder::getCountByUid(Vector<uint32_t>& uids, Vector<uint32_t>& counts)
 {
-    AutoMutex _l(sTrackingLock);
+    RpcMutexUniqueLock _l(sTrackingLock);
     uids.setCapacity(sTrackingMap.size());
     counts.setCapacity(sTrackingMap.size());
     for (const auto& it : sTrackingMap) {
@@ -731,12 +731,12 @@
 void BpBinder::setCountByUidEnabled(bool enable) { sCountByUidEnabled.store(enable); }
 
 void BpBinder::setLimitCallback(binder_proxy_limit_callback cb) {
-    AutoMutex _l(sTrackingLock);
+    RpcMutexUniqueLock _l(sTrackingLock);
     sLimitCallback = cb;
 }
 
 void BpBinder::setBinderProxyCountWatermarks(int high, int low) {
-    AutoMutex _l(sTrackingLock);
+    RpcMutexUniqueLock _l(sTrackingLock);
     sBinderProxyCountHighWatermark = high;
     sBinderProxyCountLowWatermark = low;
 }
diff --git a/libs/binder/Debug.cpp b/libs/binder/Debug.cpp
index c6e4fb3..7ae616e 100644
--- a/libs/binder/Debug.cpp
+++ b/libs/binder/Debug.cpp
@@ -19,8 +19,6 @@
 
 #include <binder/ProcessState.h>
 
-#include <utils/misc.h>
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>
diff --git a/libs/binder/FdTrigger.cpp b/libs/binder/FdTrigger.cpp
index 8ee6cb0..455a433 100644
--- a/libs/binder/FdTrigger.cpp
+++ b/libs/binder/FdTrigger.cpp
@@ -21,16 +21,20 @@
 
 #include <poll.h>
 
-#include <android-base/macros.h>
-#include <android-base/scopeguard.h>
+#include <binder/Functional.h>
 
+#include "FdUtils.h"
 #include "RpcState.h"
+#include "Utils.h"
+
 namespace android {
 
+using namespace android::binder::impl;
+
 std::unique_ptr<FdTrigger> FdTrigger::make() {
     auto ret = std::make_unique<FdTrigger>();
 #ifndef BINDER_RPC_SINGLE_THREADED
-    if (!android::base::Pipe(&ret->mRead, &ret->mWrite)) {
+    if (!binder::Pipe(&ret->mRead, &ret->mWrite)) {
         ALOGE("Could not create pipe %s", strerror(errno));
         return nullptr;
     }
@@ -50,7 +54,7 @@
 #ifdef BINDER_RPC_SINGLE_THREADED
     return mTriggered;
 #else
-    return mWrite == -1;
+    return !mWrite.ok();
 #endif
 }
 
@@ -74,10 +78,9 @@
                         "Only one thread should be polling on Fd!");
 
     transportFd.setPollingState(true);
-    auto pollingStateGuard =
-            android::base::make_scope_guard([&]() { transportFd.setPollingState(false); });
+    auto pollingStateGuard = make_scope_guard([&]() { transportFd.setPollingState(false); });
 
-    int ret = TEMP_FAILURE_RETRY(poll(pfd, arraysize(pfd), -1));
+    int ret = TEMP_FAILURE_RETRY(poll(pfd, countof(pfd), -1));
     if (ret < 0) {
         return -errno;
     }
diff --git a/libs/binder/FdTrigger.h b/libs/binder/FdTrigger.h
index 5fbf290..e4a0283 100644
--- a/libs/binder/FdTrigger.h
+++ b/libs/binder/FdTrigger.h
@@ -17,11 +17,10 @@
 
 #include <memory>
 
-#include <android-base/result.h>
-#include <android-base/unique_fd.h>
 #include <utils/Errors.h>
 
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 
 namespace android {
 
@@ -62,8 +61,8 @@
 #ifdef BINDER_RPC_SINGLE_THREADED
     bool mTriggered = false;
 #else
-    base::unique_fd mWrite;
-    base::unique_fd mRead;
+    binder::unique_fd mWrite;
+    binder::unique_fd mRead;
 #endif
 };
 } // namespace android
diff --git a/libs/binder/FdUtils.h b/libs/binder/FdUtils.h
new file mode 100644
index 0000000..52ae487
--- /dev/null
+++ b/libs/binder/FdUtils.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <binder/unique_fd.h>
+
+#if defined(_WIN32) || defined(__TRUSTY__)
+// Pipe and Socketpair are missing there
+#elif !defined(BINDER_NO_LIBBASE)
+
+namespace android::binder {
+using android::base::Pipe;
+using android::base::Socketpair;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <sys/socket.h>
+
+namespace android::binder {
+
+// Inline functions, so that they can be used header-only.
+
+// See pipe(2).
+// This helper hides the details of converting to unique_fd, and also hides the
+// fact that macOS doesn't support O_CLOEXEC or O_NONBLOCK directly.
+inline bool Pipe(unique_fd* read, unique_fd* write, int flags = O_CLOEXEC) {
+    int pipefd[2];
+
+#if defined(__APPLE__)
+    if (flags & ~(O_CLOEXEC | O_NONBLOCK)) {
+        return false;
+    }
+    if (pipe(pipefd) != 0) {
+        return false;
+    }
+
+    if (flags & O_CLOEXEC) {
+        if (fcntl(pipefd[0], F_SETFD, FD_CLOEXEC) != 0 ||
+            fcntl(pipefd[1], F_SETFD, FD_CLOEXEC) != 0) {
+            close(pipefd[0]);
+            close(pipefd[1]);
+            return false;
+        }
+    }
+    if (flags & O_NONBLOCK) {
+        if (fcntl(pipefd[0], F_SETFL, O_NONBLOCK) != 0 ||
+            fcntl(pipefd[1], F_SETFL, O_NONBLOCK) != 0) {
+            close(pipefd[0]);
+            close(pipefd[1]);
+            return false;
+        }
+    }
+#else
+    if (pipe2(pipefd, flags) != 0) {
+        return false;
+    }
+#endif
+
+    read->reset(pipefd[0]);
+    write->reset(pipefd[1]);
+    return true;
+}
+
+// See socketpair(2).
+// This helper hides the details of converting to unique_fd.
+inline bool Socketpair(int domain, int type, int protocol, unique_fd* left, unique_fd* right) {
+    int sockfd[2];
+    if (socketpair(domain, type, protocol, sockfd) != 0) {
+        return false;
+    }
+    left->reset(sockfd[0]);
+    right->reset(sockfd[1]);
+    return true;
+}
+
+// See socketpair(2).
+// This helper hides the details of converting to unique_fd.
+inline bool Socketpair(int type, unique_fd* left, unique_fd* right) {
+    return Socketpair(AF_UNIX, type, 0, left, right);
+}
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/IInterface.cpp b/libs/binder/IInterface.cpp
index 2780bd4..dea2603 100644
--- a/libs/binder/IInterface.cpp
+++ b/libs/binder/IInterface.cpp
@@ -15,7 +15,6 @@
  */
 
 #define LOG_TAG "IInterface"
-#include <utils/Log.h>
 #include <binder/IInterface.h>
 
 namespace android {
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index da58251..9341eff 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -22,7 +22,6 @@
 #include <binder/BpBinder.h>
 #include <binder/TextOutput.h>
 
-#include <android-base/macros.h>
 #include <cutils/sched_policy.h>
 #include <utils/CallStack.h>
 #include <utils/Log.h>
@@ -395,7 +394,9 @@
 }
 
 void IPCThreadState::checkContextIsBinderForUse(const char* use) const {
-    if (LIKELY(mServingStackPointerGuard == nullptr)) return;
+    if (mServingStackPointerGuard == nullptr) [[likely]] {
+        return;
+    }
 
     if (!mServingStackPointer || mServingStackPointerGuard->address < mServingStackPointer) {
         LOG_ALWAYS_FATAL("In context %s, %s does not make sense (binder sp: %p, guard: %p).",
@@ -832,7 +833,7 @@
     }
 
     if ((flags & TF_ONE_WAY) == 0) {
-        if (UNLIKELY(mCallRestriction != ProcessState::CallRestriction::NONE)) {
+        if (mCallRestriction != ProcessState::CallRestriction::NONE) [[unlikely]] {
             if (mCallRestriction == ProcessState::CallRestriction::ERROR_IF_NOT_ONEWAY) {
                 ALOGE("Process making non-oneway call (code: %u) but is restricted.", code);
                 CallStack::logStack("non-oneway call", CallStack::getCurrent(10).get(),
@@ -842,13 +843,13 @@
             }
         }
 
-        #if 0
+#if 0
         if (code == 4) { // relayout
             ALOGI(">>>>>> CALLING transaction 4");
         } else {
             ALOGI(">>>>>> CALLING transaction %d", code);
         }
-        #endif
+#endif
         if (reply) {
             err = waitForResponse(reply);
         } else {
diff --git a/libs/binder/IResultReceiver.cpp b/libs/binder/IResultReceiver.cpp
index cd92217..60ece72 100644
--- a/libs/binder/IResultReceiver.cpp
+++ b/libs/binder/IResultReceiver.cpp
@@ -18,7 +18,6 @@
 
 #include <binder/IResultReceiver.h>
 
-#include <utils/Log.h>
 #include <binder/Parcel.h>
 #include <utils/String8.h>
 
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 6034f2b..fe566fc 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -200,7 +200,7 @@
 }
 
 bool checkPermission(const String16& permission, pid_t pid, uid_t uid, bool logPermissionFailure) {
-    static Mutex gPermissionControllerLock;
+    static std::mutex gPermissionControllerLock;
     static sp<IPermissionController> gPermissionController;
 
     sp<IPermissionController> pc;
diff --git a/libs/binder/MemoryDealer.cpp b/libs/binder/MemoryDealer.cpp
index 5b1cb7e..95bdbb4 100644
--- a/libs/binder/MemoryDealer.cpp
+++ b/libs/binder/MemoryDealer.cpp
@@ -155,7 +155,7 @@
     void     dump_l(String8& res, const char* what) const;
 
     static const int    kMemoryAlign;
-    mutable Mutex       mLock;
+    mutable std::mutex mLock;
     LinkedList<chunk_t> mList;
     size_t              mHeapSize;
 };
@@ -305,14 +305,14 @@
 
 size_t SimpleBestFitAllocator::allocate(size_t size, uint32_t flags)
 {
-    Mutex::Autolock _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
     ssize_t offset = alloc(size, flags);
     return offset;
 }
 
 status_t SimpleBestFitAllocator::deallocate(size_t offset)
 {
-    Mutex::Autolock _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
     chunk_t const * const freed = dealloc(offset);
     if (freed) {
         return NO_ERROR;
@@ -420,7 +420,7 @@
 
 void SimpleBestFitAllocator::dump(const char* what) const
 {
-    Mutex::Autolock _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
     dump_l(what);
 }
 
@@ -434,7 +434,7 @@
 void SimpleBestFitAllocator::dump(String8& result,
         const char* what) const
 {
-    Mutex::Autolock _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
     dump_l(result, what);
 }
 
diff --git a/libs/binder/OS.h b/libs/binder/OS.h
index fecae31..c5f0730 100644
--- a/libs/binder/OS.h
+++ b/libs/binder/OS.h
@@ -18,14 +18,13 @@
 #include <stddef.h>
 #include <cstdint>
 
-#include <android-base/result.h>
-#include <android-base/unique_fd.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 
-namespace android {
+namespace android::binder::os {
 
-android::base::Result<void> setNonBlocking(android::base::borrowed_fd fd);
+status_t setNonBlocking(borrowed_fd fd);
 
 status_t getRandomBytes(uint8_t* data, size_t size);
 
@@ -33,12 +32,14 @@
 
 std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory();
 
-ssize_t sendMessageOnSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds);
+ssize_t sendMessageOnSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);
 
-ssize_t receiveMessageFromSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds);
+ssize_t receiveMessageFromSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                                 std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);
 
-} // namespace android
+uint64_t GetThreadId();
+
+bool report_sysprop_change();
+
+} // namespace android::binder::os
diff --git a/libs/binder/OS_android.cpp b/libs/binder/OS_android.cpp
new file mode 100644
index 0000000..ad458eb
--- /dev/null
+++ b/libs/binder/OS_android.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "OS.h"
+
+#include <android-base/threads.h>
+#include <utils/misc.h>
+
+namespace android::binder::os {
+
+uint64_t GetThreadId() {
+#ifdef BINDER_RPC_SINGLE_THREADED
+    return 0;
+#else
+    return base::GetThreadId();
+#endif
+}
+
+bool report_sysprop_change() {
+    android::report_sysprop_change();
+    return true;
+}
+
+} // namespace android::binder::os
diff --git a/libs/binder/OS.cpp b/libs/binder/OS_unix_base.cpp
similarity index 82%
rename from libs/binder/OS.cpp
rename to libs/binder/OS_unix_base.cpp
index ce60e33..ca998d4 100644
--- a/libs/binder/OS.cpp
+++ b/libs/binder/OS_unix_base.cpp
@@ -15,39 +15,41 @@
  */
 
 #include "OS.h"
+#include "Utils.h"
+#include "file.h"
 
-#include <android-base/file.h>
 #include <binder/RpcTransportRaw.h>
 #include <log/log.h>
 #include <string.h>
+#include <sys/socket.h>
 
-using android::base::ErrnoError;
-using android::base::Result;
+using android::binder::ReadFully;
 
-namespace android {
+namespace android::binder::os {
 
 // Linux kernel supports up to 253 (from SCM_MAX_FD) for unix sockets.
 constexpr size_t kMaxFdsPerMsg = 253;
 
-Result<void> setNonBlocking(android::base::borrowed_fd fd) {
+status_t setNonBlocking(borrowed_fd fd) {
     int flags = TEMP_FAILURE_RETRY(fcntl(fd.get(), F_GETFL));
     if (flags == -1) {
-        return ErrnoError() << "Could not get flags for fd";
+        PLOGE("Failed setNonBlocking: Could not get flags for fd");
+        return -errno;
     }
     if (int ret = TEMP_FAILURE_RETRY(fcntl(fd.get(), F_SETFL, flags | O_NONBLOCK)); ret == -1) {
-        return ErrnoError() << "Could not set non-blocking flag for fd";
+        PLOGE("Failed setNonBlocking: Could not set non-blocking flag for fd");
+        return -errno;
     }
-    return {};
+    return OK;
 }
 
 status_t getRandomBytes(uint8_t* data, size_t size) {
-    int ret = TEMP_FAILURE_RETRY(open("/dev/urandom", O_RDONLY | O_CLOEXEC | O_NOFOLLOW));
-    if (ret == -1) {
+    unique_fd fd(TEMP_FAILURE_RETRY(open("/dev/urandom", O_RDONLY | O_CLOEXEC | O_NOFOLLOW)));
+    if (!fd.ok()) {
         return -errno;
     }
 
-    base::unique_fd fd(ret);
-    if (!base::ReadFully(fd, data, size)) {
+    if (!ReadFully(fd, data, size)) {
         return -errno;
     }
     return OK;
@@ -67,9 +69,8 @@
     return RpcTransportCtxFactoryRaw::make();
 }
 
-ssize_t sendMessageOnSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+ssize_t sendMessageOnSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     if (ancillaryFds != nullptr && !ancillaryFds->empty()) {
         if (ancillaryFds->size() > kMaxFdsPerMsg) {
             errno = EINVAL;
@@ -112,9 +113,8 @@
     return TEMP_FAILURE_RETRY(sendmsg(socket.fd.get(), &msg, MSG_NOSIGNAL));
 }
 
-ssize_t receiveMessageFromSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+ssize_t receiveMessageFromSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                                 std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     if (ancillaryFds != nullptr) {
         int fdBuffer[kMaxFdsPerMsg];
         alignas(struct cmsghdr) char msgControlBuf[CMSG_SPACE(sizeof(fdBuffer))];
@@ -140,7 +140,7 @@
                 size_t fdCount = dataLen / sizeof(int);
                 ancillaryFds->reserve(ancillaryFds->size() + fdCount);
                 for (size_t i = 0; i < fdCount; i++) {
-                    ancillaryFds->emplace_back(base::unique_fd(fdBuffer[i]));
+                    ancillaryFds->emplace_back(unique_fd(fdBuffer[i]));
                 }
                 break;
             }
@@ -162,4 +162,4 @@
     return TEMP_FAILURE_RETRY(recvmsg(socket.fd.get(), &msg, MSG_NOSIGNAL));
 }
 
-} // namespace android
+} // namespace android::binder::os
diff --git a/libs/binder/OWNERS b/libs/binder/OWNERS
index bb17683..a70b558 100644
--- a/libs/binder/OWNERS
+++ b/libs/binder/OWNERS
@@ -1,4 +1,5 @@
 # Bug component: 32456
-maco@google.com
+
 smoreland@google.com
-tkjos@google.com
+tkjos@google.com # kernel
+maco@google.com # historical
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index d92de1b..47e3f91 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "Parcel"
 //#define LOG_NDEBUG 0
 
+#include <endian.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <inttypes.h>
@@ -32,6 +33,7 @@
 
 #include <binder/Binder.h>
 #include <binder/BpBinder.h>
+#include <binder/Functional.h>
 #include <binder/IPCThreadState.h>
 #include <binder/Parcel.h>
 #include <binder/ProcessState.h>
@@ -39,13 +41,11 @@
 #include <binder/Status.h>
 #include <binder/TextOutput.h>
 
-#include <android-base/scopeguard.h>
+#ifndef BINDER_DISABLE_BLOB
 #include <cutils/ashmem.h>
-#include <utils/Flattenable.h>
-#include <utils/Log.h>
+#endif
 #include <utils/String16.h>
 #include <utils/String8.h>
-#include <utils/misc.h>
 
 #include "OS.h"
 #include "RpcState.h"
@@ -92,6 +92,10 @@
 
 namespace android {
 
+using namespace android::binder::impl;
+using binder::borrowed_fd;
+using binder::unique_fd;
+
 // many things compile this into prebuilts on the stack
 #ifdef __LP64__
 static_assert(sizeof(Parcel) == 120);
@@ -169,7 +173,7 @@
 }
 #endif // BINDER_WITH_KERNEL_IPC
 
-static int toRawFd(const std::variant<base::unique_fd, base::borrowed_fd>& v) {
+static int toRawFd(const std::variant<unique_fd, borrowed_fd>& v) {
     return std::visit([](const auto& fd) { return fd.get(); }, v);
 }
 
@@ -584,7 +588,7 @@
         }
 
         const size_t savedDataPos = mDataPos;
-        base::ScopeGuard scopeGuard = [&]() { mDataPos = savedDataPos; };
+        auto scopeGuard = make_scope_guard([&]() { mDataPos = savedDataPos; });
 
         rpcFields->mObjectPositions.reserve(otherRpcFields->mObjectPositions.size());
         if (otherRpcFields->mFds != nullptr) {
@@ -621,10 +625,10 @@
                 // To match kernel binder behavior, we always dup, even if the
                 // FD was unowned in the source parcel.
                 int newFd = -1;
-                if (status_t status = dupFileDescriptor(oldFd, &newFd); status != OK) {
+                if (status_t status = binder::os::dupFileDescriptor(oldFd, &newFd); status != OK) {
                     ALOGW("Failed to duplicate file descriptor %d: %s", oldFd, strerror(-status));
                 }
-                rpcFields->mFds->emplace_back(base::unique_fd(newFd));
+                rpcFields->mFds->emplace_back(unique_fd(newFd));
                 // Fixup the index in the data.
                 mDataPos = newDataPos + 4;
                 if (status_t status = writeInt32(rpcFields->mFds->size() - 1); status != OK) {
@@ -1204,9 +1208,16 @@
                         const std::unique_ptr<std::vector<std::unique_ptr<std::string>>>& val) { return writeData(val); }
 status_t Parcel::writeUtf8VectorAsUtf16Vector(const std::vector<std::string>& val) { return writeData(val); }
 
-status_t Parcel::writeUniqueFileDescriptorVector(const std::vector<base::unique_fd>& val) { return writeData(val); }
-status_t Parcel::writeUniqueFileDescriptorVector(const std::optional<std::vector<base::unique_fd>>& val) { return writeData(val); }
-status_t Parcel::writeUniqueFileDescriptorVector(const std::unique_ptr<std::vector<base::unique_fd>>& val) { return writeData(val); }
+status_t Parcel::writeUniqueFileDescriptorVector(const std::vector<unique_fd>& val) {
+    return writeData(val);
+}
+status_t Parcel::writeUniqueFileDescriptorVector(const std::optional<std::vector<unique_fd>>& val) {
+    return writeData(val);
+}
+status_t Parcel::writeUniqueFileDescriptorVector(
+        const std::unique_ptr<std::vector<unique_fd>>& val) {
+    return writeData(val);
+}
 
 status_t Parcel::writeStrongBinderVector(const std::vector<sp<IBinder>>& val) { return writeData(val); }
 status_t Parcel::writeStrongBinderVector(const std::optional<std::vector<sp<IBinder>>>& val) { return writeData(val); }
@@ -1259,9 +1270,16 @@
         std::unique_ptr<std::vector<std::unique_ptr<std::string>>>* val) const { return readData(val); }
 status_t Parcel::readUtf8VectorFromUtf16Vector(std::vector<std::string>* val) const { return readData(val); }
 
-status_t Parcel::readUniqueFileDescriptorVector(std::optional<std::vector<base::unique_fd>>* val) const { return readData(val); }
-status_t Parcel::readUniqueFileDescriptorVector(std::unique_ptr<std::vector<base::unique_fd>>* val) const { return readData(val); }
-status_t Parcel::readUniqueFileDescriptorVector(std::vector<base::unique_fd>* val) const { return readData(val); }
+status_t Parcel::readUniqueFileDescriptorVector(std::optional<std::vector<unique_fd>>* val) const {
+    return readData(val);
+}
+status_t Parcel::readUniqueFileDescriptorVector(
+        std::unique_ptr<std::vector<unique_fd>>* val) const {
+    return readData(val);
+}
+status_t Parcel::readUniqueFileDescriptorVector(std::vector<unique_fd>* val) const {
+    return readData(val);
+}
 
 status_t Parcel::readStrongBinderVector(std::optional<std::vector<sp<IBinder>>>* val) const { return readData(val); }
 status_t Parcel::readStrongBinderVector(std::unique_ptr<std::vector<sp<IBinder>>>* val) const { return readData(val); }
@@ -1434,6 +1452,7 @@
     return writeParcelable(*parcelable);
 }
 
+#ifndef BINDER_DISABLE_NATIVE_HANDLE
 status_t Parcel::writeNativeHandle(const native_handle* handle)
 {
     if (!handle || handle->version != sizeof(native_handle))
@@ -1456,14 +1475,15 @@
     err = write(handle->data + handle->numFds, sizeof(int)*handle->numInts);
     return err;
 }
+#endif
 
 status_t Parcel::writeFileDescriptor(int fd, bool takeOwnership) {
     if (auto* rpcFields = maybeRpcFields()) {
-        std::variant<base::unique_fd, base::borrowed_fd> fdVariant;
+        std::variant<unique_fd, borrowed_fd> fdVariant;
         if (takeOwnership) {
-            fdVariant = base::unique_fd(fd);
+            fdVariant = unique_fd(fd);
         } else {
-            fdVariant = base::borrowed_fd(fd);
+            fdVariant = borrowed_fd(fd);
         }
         if (!mAllowFds) {
             return FDS_NOT_ALLOWED;
@@ -1513,7 +1533,7 @@
 status_t Parcel::writeDupFileDescriptor(int fd)
 {
     int dupFd;
-    if (status_t err = dupFileDescriptor(fd, &dupFd); err != OK) {
+    if (status_t err = binder::os::dupFileDescriptor(fd, &dupFd); err != OK) {
         return err;
     }
     status_t err = writeFileDescriptor(dupFd, true /*takeOwnership*/);
@@ -1532,7 +1552,7 @@
 status_t Parcel::writeDupParcelFileDescriptor(int fd)
 {
     int dupFd;
-    if (status_t err = dupFileDescriptor(fd, &dupFd); err != OK) {
+    if (status_t err = binder::os::dupFileDescriptor(fd, &dupFd); err != OK) {
         return err;
     }
     status_t err = writeParcelFileDescriptor(dupFd, true /*takeOwnership*/);
@@ -1542,12 +1562,18 @@
     return err;
 }
 
-status_t Parcel::writeUniqueFileDescriptor(const base::unique_fd& fd) {
+status_t Parcel::writeUniqueFileDescriptor(const unique_fd& fd) {
     return writeDupFileDescriptor(fd.get());
 }
 
 status_t Parcel::writeBlob(size_t len, bool mutableCopy, WritableBlob* outBlob)
 {
+#ifdef BINDER_DISABLE_BLOB
+    (void)len;
+    (void)mutableCopy;
+    (void)outBlob;
+    return INVALID_OPERATION;
+#else
     if (len > INT32_MAX) {
         // don't accept size_t values which may have come from an
         // inadvertent conversion from a negative int.
@@ -1599,6 +1625,7 @@
     }
     ::close(fd);
     return status;
+#endif
 }
 
 status_t Parcel::writeDupImmutableBlobFileDescriptor(int fd)
@@ -2230,6 +2257,7 @@
     return status.exceptionCode();
 }
 
+#ifndef BINDER_DISABLE_NATIVE_HANDLE
 native_handle* Parcel::readNativeHandle() const
 {
     int numFds, numInts;
@@ -2262,6 +2290,7 @@
     }
     return h;
 }
+#endif
 
 int Parcel::readFileDescriptor() const {
     if (const auto* rpcFields = maybeRpcFields()) {
@@ -2336,8 +2365,7 @@
     return fd;
 }
 
-status_t Parcel::readUniqueFileDescriptor(base::unique_fd* val) const
-{
+status_t Parcel::readUniqueFileDescriptor(unique_fd* val) const {
     int got = readFileDescriptor();
 
     if (got == BAD_TYPE) {
@@ -2345,7 +2373,7 @@
     }
 
     int dupFd;
-    if (status_t err = dupFileDescriptor(got, &dupFd); err != OK) {
+    if (status_t err = binder::os::dupFileDescriptor(got, &dupFd); err != OK) {
         return BAD_VALUE;
     }
 
@@ -2358,8 +2386,7 @@
     return OK;
 }
 
-status_t Parcel::readUniqueParcelFileDescriptor(base::unique_fd* val) const
-{
+status_t Parcel::readUniqueParcelFileDescriptor(unique_fd* val) const {
     int got = readParcelFileDescriptor();
 
     if (got == BAD_TYPE) {
@@ -2367,7 +2394,7 @@
     }
 
     int dupFd;
-    if (status_t err = dupFileDescriptor(got, &dupFd); err != OK) {
+    if (status_t err = binder::os::dupFileDescriptor(got, &dupFd); err != OK) {
         return BAD_VALUE;
     }
 
@@ -2382,6 +2409,11 @@
 
 status_t Parcel::readBlob(size_t len, ReadableBlob* outBlob) const
 {
+#ifdef BINDER_DISABLE_BLOB
+    (void)len;
+    (void)outBlob;
+    return INVALID_OPERATION;
+#else
     int32_t blobType;
     status_t status = readInt32(&blobType);
     if (status) return status;
@@ -2415,6 +2447,7 @@
 
     outBlob->init(fd, ptr, len, isMutable);
     return NO_ERROR;
+#endif
 }
 
 status_t Parcel::read(FlattenableHelperInterface& val) const
@@ -2645,8 +2678,7 @@
 status_t Parcel::rpcSetDataReference(
         const sp<RpcSession>& session, const uint8_t* data, size_t dataSize,
         const uint32_t* objectTable, size_t objectTableSize,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds,
-        release_func relFunc) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds, release_func relFunc) {
     // this code uses 'mOwner == nullptr' to understand whether it owns memory
     LOG_ALWAYS_FATAL_IF(relFunc == nullptr, "must provide cleanup function");
 
@@ -3158,6 +3190,7 @@
     }
 
     size_t openAshmemSize = 0;
+#ifndef BINDER_DISABLE_BLOB
     for (size_t i = 0; i < kernelFields->mObjectsSize; i++) {
         const flat_binder_object* flat =
                 reinterpret_cast<const flat_binder_object*>(mData + kernelFields->mObjects[i]);
@@ -3172,6 +3205,7 @@
             }
         }
     }
+#endif
     return openAshmemSize;
 }
 #endif // BINDER_WITH_KERNEL_IPC
diff --git a/libs/binder/ParcelFileDescriptor.cpp b/libs/binder/ParcelFileDescriptor.cpp
index 4f8b76f..c3c4874 100644
--- a/libs/binder/ParcelFileDescriptor.cpp
+++ b/libs/binder/ParcelFileDescriptor.cpp
@@ -19,9 +19,11 @@
 namespace android {
 namespace os {
 
+using android::binder::unique_fd;
+
 ParcelFileDescriptor::ParcelFileDescriptor() = default;
 
-ParcelFileDescriptor::ParcelFileDescriptor(android::base::unique_fd fd) : mFd(std::move(fd)) {}
+ParcelFileDescriptor::ParcelFileDescriptor(unique_fd fd) : mFd(std::move(fd)) {}
 
 ParcelFileDescriptor::~ParcelFileDescriptor() = default;
 
diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 8ec4af9..7de94e3 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -18,10 +18,9 @@
 
 #include <binder/ProcessState.h>
 
-#include <android-base/result.h>
-#include <android-base/scopeguard.h>
 #include <android-base/strings.h>
 #include <binder/BpBinder.h>
+#include <binder/Functional.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/Stability.h>
@@ -32,6 +31,7 @@
 #include <utils/Thread.h>
 
 #include "Static.h"
+#include "Utils.h"
 #include "binder_module.h"
 
 #include <errno.h>
@@ -60,6 +60,9 @@
 
 namespace android {
 
+using namespace android::binder::impl;
+using android::binder::unique_fd;
+
 class PoolThread : public Thread
 {
 public:
@@ -189,7 +192,7 @@
 
 void ProcessState::startThreadPool()
 {
-    AutoMutex _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
     if (!mThreadPoolStarted) {
         if (mMaxThreads == 0) {
             // see also getThreadPoolMaxTotalThreadCount
@@ -203,7 +206,7 @@
 
 bool ProcessState::becomeContextManager()
 {
-    AutoMutex _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
 
     flat_binder_object obj {
         .flags = FLAT_BINDER_FLAG_TXN_SECURITY_CTX,
@@ -310,7 +313,7 @@
 {
     sp<IBinder> result;
 
-    AutoMutex _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
 
     if (handle == 0 && the_context_object != nullptr) return the_context_object;
 
@@ -374,7 +377,7 @@
 
 void ProcessState::expungeHandle(int32_t handle, IBinder* binder)
 {
-    AutoMutex _l(mLock);
+    std::unique_lock<std::mutex> _l(mLock);
 
     handle_entry* e = lookupHandleLocked(handle);
 
@@ -430,7 +433,7 @@
 
 size_t ProcessState::getThreadPoolMaxTotalThreadCount() const {
     pthread_mutex_lock(&mThreadCountLock);
-    base::ScopeGuard detachGuard = [&]() { pthread_mutex_unlock(&mThreadCountLock); };
+    auto detachGuard = make_scope_guard([&]() { pthread_mutex_unlock(&mThreadCountLock); });
 
     if (mThreadPoolStarted) {
         LOG_ALWAYS_FATAL_IF(mKernelStartedThreads > mMaxThreads + 1,
@@ -512,31 +515,31 @@
     return mDriverName;
 }
 
-static base::Result<int> open_driver(const char* driver) {
-    int fd = open(driver, O_RDWR | O_CLOEXEC);
-    if (fd < 0) {
-        return base::ErrnoError() << "Opening '" << driver << "' failed";
+static unique_fd open_driver(const char* driver) {
+    auto fd = unique_fd(open(driver, O_RDWR | O_CLOEXEC));
+    if (!fd.ok()) {
+        PLOGE("Opening '%s' failed", driver);
+        return {};
     }
     int vers = 0;
-    status_t result = ioctl(fd, BINDER_VERSION, &vers);
+    int result = ioctl(fd.get(), BINDER_VERSION, &vers);
     if (result == -1) {
-        close(fd);
-        return base::ErrnoError() << "Binder ioctl to obtain version failed";
+        PLOGE("Binder ioctl to obtain version failed");
+        return {};
     }
     if (result != 0 || vers != BINDER_CURRENT_PROTOCOL_VERSION) {
-        close(fd);
-        return base::Error() << "Binder driver protocol(" << vers
-                             << ") does not match user space protocol("
-                             << BINDER_CURRENT_PROTOCOL_VERSION
-                             << ")! ioctl() return value: " << result;
+        ALOGE("Binder driver protocol(%d) does not match user space protocol(%d)! "
+              "ioctl() return value: %d",
+              vers, BINDER_CURRENT_PROTOCOL_VERSION, result);
+        return {};
     }
     size_t maxThreads = DEFAULT_MAX_BINDER_THREADS;
-    result = ioctl(fd, BINDER_SET_MAX_THREADS, &maxThreads);
+    result = ioctl(fd.get(), BINDER_SET_MAX_THREADS, &maxThreads);
     if (result == -1) {
         ALOGE("Binder ioctl to set max threads failed: %s", strerror(errno));
     }
     uint32_t enable = DEFAULT_ENABLE_ONEWAY_SPAM_DETECTION;
-    result = ioctl(fd, BINDER_ENABLE_ONEWAY_SPAM_DETECTION, &enable);
+    result = ioctl(fd.get(), BINDER_ENABLE_ONEWAY_SPAM_DETECTION, &enable);
     if (result == -1) {
         ALOGE_IF(ProcessState::isDriverFeatureEnabled(
                      ProcessState::DriverFeature::ONEWAY_SPAM_DETECTION),
@@ -561,28 +564,27 @@
         mThreadPoolStarted(false),
         mThreadPoolSeq(1),
         mCallRestriction(CallRestriction::NONE) {
-    base::Result<int> opened = open_driver(driver);
+    unique_fd opened = open_driver(driver);
 
     if (opened.ok()) {
         // mmap the binder, providing a chunk of virtual address space to receive transactions.
         mVMStart = mmap(nullptr, BINDER_VM_SIZE, PROT_READ, MAP_PRIVATE | MAP_NORESERVE,
-                        opened.value(), 0);
+                        opened.get(), 0);
         if (mVMStart == MAP_FAILED) {
-            close(opened.value());
             // *sigh*
-            opened = base::Error()
-                    << "Using " << driver << " failed: unable to mmap transaction memory.";
+            ALOGE("Using %s failed: unable to mmap transaction memory.", driver);
+            opened.reset();
             mDriverName.clear();
         }
     }
 
 #ifdef __ANDROID__
-    LOG_ALWAYS_FATAL_IF(!opened.ok(), "Binder driver '%s' could not be opened. Terminating: %s",
-                        driver, opened.error().message().c_str());
+    LOG_ALWAYS_FATAL_IF(!opened.ok(), "Binder driver '%s' could not be opened. Terminating.",
+                        driver);
 #endif
 
     if (opened.ok()) {
-        mDriverFD = opened.value();
+        mDriverFD = opened.release();
     }
 }
 
diff --git a/libs/binder/RecordedTransaction.cpp b/libs/binder/RecordedTransaction.cpp
index 3246706..525ba2e 100644
--- a/libs/binder/RecordedTransaction.cpp
+++ b/libs/binder/RecordedTransaction.cpp
@@ -14,17 +14,23 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
-#include <android-base/logging.h>
-#include <android-base/scopeguard.h>
-#include <android-base/unique_fd.h>
+#include "file.h"
+
+#include <binder/Functional.h>
 #include <binder/RecordedTransaction.h>
+#include <binder/unique_fd.h>
+
+#include <inttypes.h>
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <algorithm>
 
+using namespace android::binder::impl;
 using android::Parcel;
-using android::base::borrowed_fd;
-using android::base::unique_fd;
+using android::binder::borrowed_fd;
+using android::binder::ReadFully;
+using android::binder::unique_fd;
+using android::binder::WriteFully;
 using android::binder::debug::RecordedTransaction;
 
 #define PADDING8(s) ((8 - (s) % 8) % 8)
@@ -126,18 +132,17 @@
 
     t.mData.mInterfaceName = std::string(String8(interfaceName).c_str());
     if (interfaceName.size() != t.mData.mInterfaceName.size()) {
-        LOG(ERROR) << "Interface Name is not valid. Contains characters that aren't single byte "
-                      "utf-8.";
+        ALOGE("Interface Name is not valid. Contains characters that aren't single byte utf-8.");
         return std::nullopt;
     }
 
     if (t.mSent.setData(dataParcel.data(), dataParcel.dataBufferSize()) != android::NO_ERROR) {
-        LOG(ERROR) << "Failed to set sent parcel data.";
+        ALOGE("Failed to set sent parcel data.");
         return std::nullopt;
     }
 
     if (t.mReply.setData(replyParcel.data(), replyParcel.dataBufferSize()) != android::NO_ERROR) {
-        LOG(ERROR) << "Failed to set reply parcel data.";
+        ALOGE("Failed to set reply parcel data.");
         return std::nullopt;
     }
 
@@ -167,38 +172,37 @@
     const long pageSize = sysconf(_SC_PAGE_SIZE);
     struct stat fileStat;
     if (fstat(fd.get(), &fileStat) != 0) {
-        LOG(ERROR) << "Unable to get file information";
+        ALOGE("Unable to get file information");
         return std::nullopt;
     }
 
     off_t fdCurrentPosition = lseek(fd.get(), 0, SEEK_CUR);
     if (fdCurrentPosition == -1) {
-        LOG(ERROR) << "Invalid offset in file descriptor.";
+        ALOGE("Invalid offset in file descriptor.");
         return std::nullopt;
     }
     do {
         if (fileStat.st_size < (fdCurrentPosition + (off_t)sizeof(ChunkDescriptor))) {
-            LOG(ERROR) << "Not enough file remains to contain expected chunk descriptor";
+            ALOGE("Not enough file remains to contain expected chunk descriptor");
             return std::nullopt;
         }
 
-        if (!android::base::ReadFully(fd, &chunk, sizeof(ChunkDescriptor))) {
-            LOG(ERROR) << "Failed to read ChunkDescriptor from fd " << fd.get() << ". "
-                       << strerror(errno);
+        if (!ReadFully(fd, &chunk, sizeof(ChunkDescriptor))) {
+            ALOGE("Failed to read ChunkDescriptor from fd %d. %s", fd.get(), strerror(errno));
             return std::nullopt;
         }
         transaction_checksum_t checksum = *reinterpret_cast<transaction_checksum_t*>(&chunk);
 
         fdCurrentPosition = lseek(fd.get(), 0, SEEK_CUR);
         if (fdCurrentPosition == -1) {
-            LOG(ERROR) << "Invalid offset in file descriptor.";
+            ALOGE("Invalid offset in file descriptor.");
             return std::nullopt;
         }
         off_t mmapPageAlignedStart = (fdCurrentPosition / pageSize) * pageSize;
         off_t mmapPayloadStartOffset = fdCurrentPosition - mmapPageAlignedStart;
 
         if (chunk.dataSize > kMaxChunkDataSize) {
-            LOG(ERROR) << "Chunk data exceeds maximum size.";
+            ALOGE("Chunk data exceeds maximum size.");
             return std::nullopt;
         }
 
@@ -206,19 +210,19 @@
                 chunk.dataSize + PADDING8(chunk.dataSize) + sizeof(transaction_checksum_t);
 
         if (chunkPayloadSize > (size_t)(fileStat.st_size - fdCurrentPosition)) {
-            LOG(ERROR) << "Chunk payload exceeds remaining file size.";
+            ALOGE("Chunk payload exceeds remaining file size.");
             return std::nullopt;
         }
 
         if (PADDING8(chunkPayloadSize) != 0) {
-            LOG(ERROR) << "Invalid chunk size, not aligned " << chunkPayloadSize;
+            ALOGE("Invalid chunk size, not aligned %zu", chunkPayloadSize);
             return std::nullopt;
         }
 
         size_t memoryMappedSize = chunkPayloadSize + mmapPayloadStartOffset;
         void* mappedMemory =
                 mmap(NULL, memoryMappedSize, PROT_READ, MAP_SHARED, fd.get(), mmapPageAlignedStart);
-        auto mmap_guard = android::base::make_scope_guard(
+        auto mmap_guard = make_scope_guard(
                 [mappedMemory, memoryMappedSize] { munmap(mappedMemory, memoryMappedSize); });
 
         transaction_checksum_t* payloadMap =
@@ -227,8 +231,7 @@
                 sizeof(transaction_checksum_t); // Skip chunk descriptor and required mmap
                                                 // page-alignment
         if (payloadMap == MAP_FAILED) {
-            LOG(ERROR) << "Memory mapping failed for fd " << fd.get() << ": " << errno << " "
-                       << strerror(errno);
+            ALOGE("Memory mapping failed for fd %d: %d %s", fd.get(), errno, strerror(errno));
             return std::nullopt;
         }
         for (size_t checksumIndex = 0;
@@ -236,21 +239,21 @@
             checksum ^= payloadMap[checksumIndex];
         }
         if (checksum != 0) {
-            LOG(ERROR) << "Checksum failed.";
+            ALOGE("Checksum failed.");
             return std::nullopt;
         }
 
         fdCurrentPosition = lseek(fd.get(), chunkPayloadSize, SEEK_CUR);
         if (fdCurrentPosition == -1) {
-            LOG(ERROR) << "Invalid offset in file descriptor.";
+            ALOGE("Invalid offset in file descriptor.");
             return std::nullopt;
         }
 
         switch (chunk.chunkType) {
             case HEADER_CHUNK: {
                 if (chunk.dataSize != static_cast<uint32_t>(sizeof(TransactionHeader))) {
-                    LOG(ERROR) << "Header Chunk indicated size " << chunk.dataSize << "; Expected "
-                               << sizeof(TransactionHeader) << ".";
+                    ALOGE("Header Chunk indicated size %" PRIu32 "; Expected %zu.", chunk.dataSize,
+                          sizeof(TransactionHeader));
                     return std::nullopt;
                 }
                 t.mData.mHeader = *reinterpret_cast<TransactionHeader*>(payloadMap);
@@ -264,7 +267,7 @@
             case DATA_PARCEL_CHUNK: {
                 if (t.mSent.setData(reinterpret_cast<const unsigned char*>(payloadMap),
                                     chunk.dataSize) != android::NO_ERROR) {
-                    LOG(ERROR) << "Failed to set sent parcel data.";
+                    ALOGE("Failed to set sent parcel data.");
                     return std::nullopt;
                 }
                 break;
@@ -272,7 +275,7 @@
             case REPLY_PARCEL_CHUNK: {
                 if (t.mReply.setData(reinterpret_cast<const unsigned char*>(payloadMap),
                                      chunk.dataSize) != android::NO_ERROR) {
-                    LOG(ERROR) << "Failed to set reply parcel data.";
+                    ALOGE("Failed to set reply parcel data.");
                     return std::nullopt;
                 }
                 break;
@@ -280,7 +283,7 @@
             case END_CHUNK:
                 break;
             default:
-                LOG(INFO) << "Unrecognized chunk.";
+                ALOGI("Unrecognized chunk.");
                 break;
         }
     } while (chunk.chunkType != END_CHUNK);
@@ -291,7 +294,7 @@
 android::status_t RecordedTransaction::writeChunk(borrowed_fd fd, uint32_t chunkType,
                                                   size_t byteCount, const uint8_t* data) const {
     if (byteCount > kMaxChunkDataSize) {
-        LOG(ERROR) << "Chunk data exceeds maximum size";
+        ALOGE("Chunk data exceeds maximum size");
         return BAD_VALUE;
     }
     ChunkDescriptor descriptor = {.chunkType = chunkType,
@@ -319,8 +322,8 @@
     buffer.insert(buffer.end(), checksumBytes, checksumBytes + sizeof(transaction_checksum_t));
 
     // Write buffer to file
-    if (!android::base::WriteFully(fd, buffer.data(), buffer.size())) {
-        LOG(ERROR) << "Failed to write chunk fd " << fd.get();
+    if (!WriteFully(fd, buffer.data(), buffer.size())) {
+        ALOGE("Failed to write chunk fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
     return NO_ERROR;
@@ -330,26 +333,26 @@
     if (NO_ERROR !=
         writeChunk(fd, HEADER_CHUNK, sizeof(TransactionHeader),
                    reinterpret_cast<const uint8_t*>(&(mData.mHeader)))) {
-        LOG(ERROR) << "Failed to write transactionHeader to fd " << fd.get();
+        ALOGE("Failed to write transactionHeader to fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
     if (NO_ERROR !=
         writeChunk(fd, INTERFACE_NAME_CHUNK, mData.mInterfaceName.size() * sizeof(uint8_t),
                    reinterpret_cast<const uint8_t*>(mData.mInterfaceName.c_str()))) {
-        LOG(INFO) << "Failed to write Interface Name Chunk to fd " << fd.get();
+        ALOGI("Failed to write Interface Name Chunk to fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
 
     if (NO_ERROR != writeChunk(fd, DATA_PARCEL_CHUNK, mSent.dataBufferSize(), mSent.data())) {
-        LOG(ERROR) << "Failed to write sent Parcel to fd " << fd.get();
+        ALOGE("Failed to write sent Parcel to fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
     if (NO_ERROR != writeChunk(fd, REPLY_PARCEL_CHUNK, mReply.dataBufferSize(), mReply.data())) {
-        LOG(ERROR) << "Failed to write reply Parcel to fd " << fd.get();
+        ALOGE("Failed to write reply Parcel to fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
     if (NO_ERROR != writeChunk(fd, END_CHUNK, 0, NULL)) {
-        LOG(ERROR) << "Failed to write end chunk to fd " << fd.get();
+        ALOGE("Failed to write end chunk to fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
     return NO_ERROR;
diff --git a/libs/binder/RpcServer.cpp b/libs/binder/RpcServer.cpp
index 55fc16d..d9e926a 100644
--- a/libs/binder/RpcServer.cpp
+++ b/libs/binder/RpcServer.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "RpcServer"
 
 #include <inttypes.h>
+#include <netinet/tcp.h>
 #include <poll.h>
 #include <sys/socket.h>
 #include <sys/un.h>
@@ -24,13 +25,11 @@
 #include <thread>
 #include <vector>
 
-#include <android-base/hex.h>
-#include <android-base/scopeguard.h>
+#include <binder/Functional.h>
 #include <binder/Parcel.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcTransportRaw.h>
 #include <log/log.h>
-#include <utils/Compat.h>
 
 #include "BuildFlags.h"
 #include "FdTrigger.h"
@@ -45,8 +44,9 @@
 
 constexpr size_t kSessionIdBytes = 32;
 
-using base::ScopeGuard;
-using base::unique_fd;
+using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 RpcServer::RpcServer(std::unique_ptr<RpcTransportCtx> ctx) : mCtx(std::move(ctx)) {}
 RpcServer::~RpcServer() {
@@ -57,7 +57,7 @@
 sp<RpcServer> RpcServer::make(std::unique_ptr<RpcTransportCtxFactory> rpcTransportCtxFactory) {
     // Default is without TLS.
     if (rpcTransportCtxFactory == nullptr)
-        rpcTransportCtxFactory = makeDefaultRpcTransportCtxFactory();
+        rpcTransportCtxFactory = binder::os::makeDefaultRpcTransportCtxFactory();
     auto ctx = rpcTransportCtxFactory->newServerCtx();
     if (ctx == nullptr) return nullptr;
     return sp<RpcServer>::make(std::move(ctx));
@@ -167,9 +167,9 @@
     mConnectionFilter = std::move(filter);
 }
 
-void RpcServer::setServerSocketModifier(std::function<void(base::borrowed_fd)>&& modifier) {
+void RpcServer::setServerSocketModifier(std::function<void(borrowed_fd)>&& modifier) {
     RpcMutexLockGuard _l(mLock);
-    LOG_ALWAYS_FATAL_IF(mServer.fd != -1, "Already started");
+    LOG_ALWAYS_FATAL_IF(mServer.fd.ok(), "Already started");
     mServerSocketModifier = std::move(modifier);
 }
 
@@ -201,7 +201,7 @@
 status_t RpcServer::acceptSocketConnection(const RpcServer& server, RpcTransportFd* out) {
     RpcTransportFd clientSocket(unique_fd(TEMP_FAILURE_RETRY(
             accept4(server.mServer.fd.get(), nullptr, nullptr, SOCK_CLOEXEC | SOCK_NONBLOCK))));
-    if (clientSocket.fd < 0) {
+    if (!clientSocket.fd.ok()) {
         int savedErrno = errno;
         ALOGE("Could not accept4 socket: %s", strerror(savedErrno));
         return -savedErrno;
@@ -214,9 +214,9 @@
 status_t RpcServer::recvmsgSocketConnection(const RpcServer& server, RpcTransportFd* out) {
     int zero = 0;
     iovec iov{&zero, sizeof(zero)};
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> fds;
 
-    ssize_t num_bytes = receiveMessageFromSocket(server.mServer, &iov, 1, &fds);
+    ssize_t num_bytes = binder::os::receiveMessageFromSocket(server.mServer, &iov, 1, &fds);
     if (num_bytes < 0) {
         int savedErrno = errno;
         ALOGE("Failed recvmsg: %s", strerror(savedErrno));
@@ -231,10 +231,7 @@
     }
 
     unique_fd fd(std::move(std::get<unique_fd>(fds.back())));
-    if (auto res = setNonBlocking(fd); !res.ok()) {
-        ALOGE("Failed setNonBlocking: %s", res.error().message().c_str());
-        return res.error().code() == 0 ? UNKNOWN_ERROR : -res.error().code();
-    }
+    if (status_t res = binder::os::setNonBlocking(fd); res != OK) return res;
 
     *out = RpcTransportFd(std::move(fd));
     return OK;
@@ -458,11 +455,12 @@
         LOG_ALWAYS_FATAL_IF(threadId == server->mConnectingThreads.end(),
                             "Must establish connection on owned thread");
         thisThread = std::move(threadId->second);
-        ScopeGuard detachGuard = [&]() {
+        auto detachGuardLambda = [&]() {
             thisThread.detach();
             _l.unlock();
             server->mShutdownCv.notify_all();
         };
+        auto detachGuard = make_scope_guard(std::ref(detachGuardLambda));
         server->mConnectingThreads.erase(threadId);
 
         if (status != OK || server->mShutdownTrigger->isTriggered()) {
@@ -484,11 +482,11 @@
                 // don't block if there is some entropy issue
                 if (tries++ > 5) {
                     ALOGE("Cannot find new address: %s",
-                          base::HexString(sessionId.data(), sessionId.size()).c_str());
+                          HexString(sessionId.data(), sessionId.size()).c_str());
                     return;
                 }
 
-                auto status = getRandomBytes(sessionId.data(), sessionId.size());
+                auto status = binder::os::getRandomBytes(sessionId.data(), sessionId.size());
                 if (status != OK) {
                     ALOGE("Failed to read random session ID: %s", strerror(-status));
                     return;
@@ -536,7 +534,7 @@
             auto it = server->mSessions.find(sessionId);
             if (it == server->mSessions.end()) {
                 ALOGE("Cannot add thread, no record of session with ID %s",
-                      base::HexString(sessionId.data(), sessionId.size()).c_str());
+                      HexString(sessionId.data(), sessionId.size()).c_str());
                 return;
             }
             session = it->second;
@@ -548,7 +546,7 @@
             return;
         }
 
-        detachGuard.Disable();
+        detachGuard.release();
         session->preJoinThreadOwnership(std::move(thisThread));
     }
 
@@ -572,6 +570,17 @@
         return -savedErrno;
     }
 
+    if (addr.addr()->sa_family == AF_INET || addr.addr()->sa_family == AF_INET6) {
+        int noDelay = 1;
+        int result =
+                setsockopt(socket_fd.get(), IPPROTO_TCP, TCP_NODELAY, &noDelay, sizeof(noDelay));
+        if (result < 0) {
+            int savedErrno = errno;
+            ALOGE("Could not set TCP_NODELAY on  %s", strerror(savedErrno));
+            return -savedErrno;
+        }
+    }
+
     {
         RpcMutexLockGuard _l(mLock);
         if (mServerSocketModifier != nullptr) {
@@ -610,15 +619,14 @@
 void RpcServer::onSessionAllIncomingThreadsEnded(const sp<RpcSession>& session) {
     const std::vector<uint8_t>& id = session->mId;
     LOG_ALWAYS_FATAL_IF(id.empty(), "Server sessions must be initialized with ID");
-    LOG_RPC_DETAIL("Dropping session with address %s",
-                   base::HexString(id.data(), id.size()).c_str());
+    LOG_RPC_DETAIL("Dropping session with address %s", HexString(id.data(), id.size()).c_str());
 
     RpcMutexLockGuard _l(mLock);
     auto it = mSessions.find(id);
     LOG_ALWAYS_FATAL_IF(it == mSessions.end(), "Bad state, unknown session id %s",
-                        base::HexString(id.data(), id.size()).c_str());
+                        HexString(id.data(), id.size()).c_str());
     LOG_ALWAYS_FATAL_IF(it->second != session, "Bad state, session has id mismatch %s",
-                        base::HexString(id.data(), id.size()).c_str());
+                        HexString(id.data(), id.size()).c_str());
     (void)mSessions.erase(it);
 }
 
@@ -637,8 +645,7 @@
 }
 
 status_t RpcServer::setupExternalServer(
-        base::unique_fd serverFd,
-        std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn) {
+        unique_fd serverFd, std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn) {
     RpcMutexLockGuard _l(mLock);
     if (mServer.fd.ok()) {
         ALOGE("Each RpcServer can only have one server.");
@@ -649,7 +656,7 @@
     return OK;
 }
 
-status_t RpcServer::setupExternalServer(base::unique_fd serverFd) {
+status_t RpcServer::setupExternalServer(unique_fd serverFd) {
     return setupExternalServer(std::move(serverFd), &RpcServer::acceptSocketConnection);
 }
 
diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index c3dee16..16a7f9f 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp
@@ -26,15 +26,12 @@
 
 #include <string_view>
 
-#include <android-base/hex.h>
-#include <android-base/macros.h>
-#include <android-base/scopeguard.h>
 #include <binder/BpBinder.h>
+#include <binder/Functional.h>
 #include <binder/Parcel.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcTransportRaw.h>
 #include <binder/Stability.h>
-#include <utils/Compat.h>
 #include <utils/String8.h>
 
 #include "BuildFlags.h"
@@ -53,7 +50,9 @@
 
 namespace android {
 
-using base::unique_fd;
+using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 RpcSession::RpcSession(std::unique_ptr<RpcTransportCtx> ctx) : mCtx(std::move(ctx)) {
     LOG_RPC_DETAIL("RpcSession created %p", this);
@@ -70,7 +69,7 @@
 
 sp<RpcSession> RpcSession::make() {
     // Default is without TLS.
-    return make(makeDefaultRpcTransportCtxFactory());
+    return make(binder::os::makeDefaultRpcTransportCtxFactory());
 }
 
 sp<RpcSession> RpcSession::make(std::unique_ptr<RpcTransportCtxFactory> rpcTransportCtxFactory) {
@@ -159,7 +158,7 @@
 
         int zero = 0;
         iovec iov{&zero, sizeof(zero)};
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+        std::vector<std::variant<unique_fd, borrowed_fd>> fds;
         fds.push_back(std::move(serverFd));
 
         status_t status = mBootstrapTransport->interruptableWriteFully(mShutdownTrigger.get(), &iov,
@@ -188,17 +187,13 @@
     return NAME_NOT_FOUND;
 }
 
-status_t RpcSession::setupPreconnectedClient(base::unique_fd fd,
-                                             std::function<unique_fd()>&& request) {
+status_t RpcSession::setupPreconnectedClient(unique_fd fd, std::function<unique_fd()>&& request) {
     return setupClient([&](const std::vector<uint8_t>& sessionId, bool incoming) -> status_t {
         if (!fd.ok()) {
             fd = request();
             if (!fd.ok()) return BAD_VALUE;
         }
-        if (auto res = setNonBlocking(fd); !res.ok()) {
-            ALOGE("setupPreconnectedClient: %s", res.error().message().c_str());
-            return res.error().code() == 0 ? UNKNOWN_ERROR : -res.error().code();
-        }
+        if (status_t res = binder::os::setNonBlocking(fd); res != OK) return res;
 
         RpcTransportFd transportFd(std::move(fd));
         status_t status = initAndAddConnection(std::move(transportFd), sessionId, incoming);
@@ -213,7 +208,7 @@
 
     unique_fd serverFd(TEMP_FAILURE_RETRY(open("/dev/null", O_WRONLY | O_CLOEXEC)));
 
-    if (serverFd == -1) {
+    if (!serverFd.ok()) {
         int savedErrno = errno;
         ALOGE("Could not connect to /dev/null: %s", strerror(savedErrno));
         return -savedErrno;
@@ -310,8 +305,7 @@
     status = state()->getSessionId(connection.get(), sp<RpcSession>::fromExisting(this), &mId);
     if (status != OK) return status;
 
-    LOG_RPC_DETAIL("RpcSession %p has id %s", this,
-                   base::HexString(mId.data(), mId.size()).c_str());
+    LOG_RPC_DETAIL("RpcSession %p has id %s", this, HexString(mId.data(), mId.size()).c_str());
     return OK;
 }
 
@@ -414,7 +408,9 @@
     }
 
 private:
-    DISALLOW_COPY_AND_ASSIGN(JavaThreadAttacher);
+    JavaThreadAttacher(const JavaThreadAttacher&) = delete;
+    void operator=(const JavaThreadAttacher&) = delete;
+
     bool mAttached = false;
 
     static JavaVM* getJavaVM() {
@@ -499,7 +495,7 @@
     if (auto status = initShutdownTrigger(); status != OK) return status;
 
     auto oldProtocolVersion = mProtocolVersion;
-    auto cleanup = base::ScopeGuard([&] {
+    auto cleanup = make_scope_guard([&] {
         // if any threads are started, shut them down
         (void)shutdownAndWait(true);
 
@@ -579,7 +575,7 @@
         if (status_t status = connectAndInit(mId, true /*incoming*/); status != OK) return status;
     }
 
-    cleanup.Disable();
+    cleanup.release();
 
     return OK;
 }
@@ -598,7 +594,7 @@
 
         unique_fd serverFd(TEMP_FAILURE_RETRY(
                 socket(addr.addr()->sa_family, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0)));
-        if (serverFd == -1) {
+        if (!serverFd.ok()) {
             int savedErrno = errno;
             ALOGE("Could not create socket at %s: %s", addr.toString().c_str(),
                   strerror(savedErrno));
@@ -709,7 +705,7 @@
                                                 std::nullopt, nullptr);
         if (sendSessionIdStatus != OK) {
             ALOGE("Could not write session ID ('%s') to socket: %s",
-                  base::HexString(sessionId.data(), sessionId.size()).c_str(),
+                  HexString(sessionId.data(), sessionId.size()).c_str(),
                   statusToString(sendSessionIdStatus).c_str());
             return sendSessionIdStatus;
         }
@@ -770,7 +766,7 @@
     {
         RpcMutexLockGuard _l(mMutex);
         connection->rpcTransport = std::move(rpcTransport);
-        connection->exclusiveTid = rpcGetThreadId();
+        connection->exclusiveTid = binder::os::GetThreadId();
         mConnections.mOutgoing.push_back(connection);
     }
 
@@ -825,7 +821,7 @@
 
     sp<RpcConnection> session = sp<RpcConnection>::make();
     session->rpcTransport = std::move(rpcTransport);
-    session->exclusiveTid = rpcGetThreadId();
+    session->exclusiveTid = binder::os::GetThreadId();
 
     mConnections.mIncoming.push_back(session);
     mConnections.mMaxIncoming = mConnections.mIncoming.size();
@@ -870,7 +866,7 @@
     connection->mConnection = nullptr;
     connection->mReentrant = false;
 
-    uint64_t tid = rpcGetThreadId();
+    uint64_t tid = binder::os::GetThreadId();
     RpcMutexUniqueLock _l(session->mMutex);
 
     session->mConnections.mWaitingThreads++;
diff --git a/libs/binder/RpcState.cpp b/libs/binder/RpcState.cpp
index bac2808..fe6e1a3 100644
--- a/libs/binder/RpcState.cpp
+++ b/libs/binder/RpcState.cpp
@@ -18,11 +18,8 @@
 
 #include "RpcState.h"
 
-#include <android-base/hex.h>
-#include <android-base/macros.h>
-#include <android-base/scopeguard.h>
-#include <android-base/stringprintf.h>
 #include <binder/BpBinder.h>
+#include <binder/Functional.h>
 #include <binder/IPCThreadState.h>
 #include <binder/RpcServer.h>
 
@@ -31,6 +28,7 @@
 #include "Utils.h"
 
 #include <random>
+#include <sstream>
 
 #include <inttypes.h>
 
@@ -40,7 +38,9 @@
 
 namespace android {
 
-using base::StringPrintf;
+using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 #if RPC_FLAKE_PRONE
 void rpcMaybeWaitToFlake() {
@@ -330,8 +330,10 @@
         desc = "(not promotable)";
     }
 
-    return StringPrintf("node{%p times sent: %zu times recd: %zu type: %s}",
-                        this->binder.unsafe_get(), this->timesSent, this->timesRecd, desc);
+    std::stringstream ss;
+    ss << "node{" << intptr_t(this->binder.unsafe_get()) << " times sent: " << this->timesSent
+       << " times recd: " << this->timesRecd << " type: " << desc << "}";
+    return ss.str();
 }
 
 RpcState::CommandData::CommandData(size_t size) : mSize(size) {
@@ -355,15 +357,14 @@
     mData.reset(new (std::nothrow) uint8_t[size]);
 }
 
-status_t RpcState::rpcSend(
-        const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
-        const char* what, iovec* iovs, int niovs,
-        const std::optional<android::base::function_ref<status_t()>>& altPoll,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+status_t RpcState::rpcSend(const sp<RpcSession::RpcConnection>& connection,
+                           const sp<RpcSession>& session, const char* what, iovec* iovs, int niovs,
+                           const std::optional<SmallFunction<status_t()>>& altPoll,
+                           const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     for (int i = 0; i < niovs; i++) {
         LOG_RPC_DETAIL("Sending %s (part %d of %d) on RpcTransport %p: %s",
                        what, i + 1, niovs, connection->rpcTransport.get(),
-                       android::base::HexString(iovs[i].iov_base, iovs[i].iov_len).c_str());
+                       HexString(iovs[i].iov_base, iovs[i].iov_len).c_str());
     }
 
     if (status_t status =
@@ -380,10 +381,9 @@
     return OK;
 }
 
-status_t RpcState::rpcRec(
-        const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
-        const char* what, iovec* iovs, int niovs,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+status_t RpcState::rpcRec(const sp<RpcSession::RpcConnection>& connection,
+                          const sp<RpcSession>& session, const char* what, iovec* iovs, int niovs,
+                          std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     if (status_t status =
                 connection->rpcTransport->interruptableReadFully(session->mShutdownTrigger.get(),
                                                                  iovs, niovs, std::nullopt,
@@ -398,7 +398,7 @@
     for (int i = 0; i < niovs; i++) {
         LOG_RPC_DETAIL("Received %s (part %d of %d) on RpcTransport %p: %s",
                        what, i + 1, niovs, connection->rpcTransport.get(),
-                       android::base::HexString(iovs[i].iov_base, iovs[i].iov_len).c_str());
+                       HexString(iovs[i].iov_base, iovs[i].iov_len).c_str());
     }
     return OK;
 }
@@ -409,13 +409,12 @@
         char codename[PROPERTY_VALUE_MAX];
         property_get("ro.build.version.codename", codename, "");
         if (!strcmp(codename, "REL")) {
-            ALOGE("Cannot use experimental RPC binder protocol on a release branch.");
+            ALOGE("Cannot use experimental RPC binder protocol in a release configuration.");
             return false;
         }
 #else
-        // don't restrict on other platforms, though experimental should
-        // only really be used for testing, we don't have a good way to see
-        // what is shipping outside of Android
+        ALOGE("Cannot use experimental RPC binder protocol outside of Android.");
+        return false;
 #endif
     } else if (version >= RPC_WIRE_PROTOCOL_VERSION_NEXT) {
         ALOGE("Cannot use RPC binder protocol version %u which is unknown (current protocol "
@@ -602,25 +601,24 @@
             {const_cast<uint8_t*>(data.data()), data.dataSize()},
             objectTableSpan.toIovec(),
     };
-    if (status_t status = rpcSend(
-                connection, session, "transaction", iovs, arraysize(iovs),
-                [&] {
-                    if (waitUs > kWaitLogUs) {
-                        ALOGE("Cannot send command, trying to process pending refcounts. Waiting "
-                              "%zuus. Too many oneway calls?",
-                              waitUs);
-                    }
+    auto altPoll = [&] {
+        if (waitUs > kWaitLogUs) {
+            ALOGE("Cannot send command, trying to process pending refcounts. Waiting "
+                  "%zuus. Too many oneway calls?",
+                  waitUs);
+        }
 
-                    if (waitUs > 0) {
-                        usleep(waitUs);
-                        waitUs = std::min(kWaitMaxUs, waitUs * 2);
-                    } else {
-                        waitUs = 1;
-                    }
+        if (waitUs > 0) {
+            usleep(waitUs);
+            waitUs = std::min(kWaitMaxUs, waitUs * 2);
+        } else {
+            waitUs = 1;
+        }
 
-                    return drainCommands(connection, session, CommandType::CONTROL_ONLY);
-                },
-                rpcFields->mFds.get());
+        return drainCommands(connection, session, CommandType::CONTROL_ONLY);
+    };
+    if (status_t status = rpcSend(connection, session, "transaction", iovs, countof(iovs),
+                                  std::ref(altPoll), rpcFields->mFds.get());
         status != OK) {
         // rpcSend calls shutdownAndWait, so all refcounts should be reset. If we ever tolerate
         // errors here, then we may need to undo the binder-sent counts for the transaction as
@@ -651,7 +649,7 @@
 
 status_t RpcState::waitForReply(const sp<RpcSession::RpcConnection>& connection,
                                 const sp<RpcSession>& session, Parcel* reply) {
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> ancillaryFds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> ancillaryFds;
     RpcWireHeader command;
     while (true) {
         iovec iov{&command, sizeof(command)};
@@ -692,7 +690,7 @@
             {&rpcReply, rpcReplyWireSize},
             {data.data(), data.size()},
     };
-    if (status_t status = rpcRec(connection, session, "reply body", iovs, arraysize(iovs), nullptr);
+    if (status_t status = rpcRec(connection, session, "reply body", iovs, countof(iovs), nullptr);
         status != OK)
         return status;
 
@@ -762,14 +760,14 @@
             .bodySize = sizeof(RpcDecStrong),
     };
     iovec iovs[]{{&cmd, sizeof(cmd)}, {&body, sizeof(body)}};
-    return rpcSend(connection, session, "dec ref", iovs, arraysize(iovs), std::nullopt);
+    return rpcSend(connection, session, "dec ref", iovs, countof(iovs), std::nullopt);
 }
 
 status_t RpcState::getAndExecuteCommand(const sp<RpcSession::RpcConnection>& connection,
                                         const sp<RpcSession>& session, CommandType type) {
     LOG_RPC_DETAIL("getAndExecuteCommand on RpcTransport %p", connection->rpcTransport.get());
 
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> ancillaryFds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> ancillaryFds;
     RpcWireHeader command;
     iovec iov{&command, sizeof(command)};
     if (status_t status =
@@ -798,7 +796,7 @@
 status_t RpcState::processCommand(
         const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
         const RpcWireHeader& command, CommandType type,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds) {
 #ifdef BINDER_WITH_KERNEL_IPC
     IPCThreadState* kernelBinderState = IPCThreadState::selfOrNull();
     IPCThreadState::SpGuard spGuard{
@@ -811,11 +809,11 @@
         origGuard = kernelBinderState->pushGetCallingSpGuard(&spGuard);
     }
 
-    base::ScopeGuard guardUnguard = [&]() {
+    auto guardUnguard = make_scope_guard([&]() {
         if (kernelBinderState != nullptr) {
             kernelBinderState->restoreGetCallingSpGuard(origGuard);
         }
-    };
+    });
 #endif // BINDER_WITH_KERNEL_IPC
 
     switch (command.command) {
@@ -838,7 +836,7 @@
 status_t RpcState::processTransact(
         const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
         const RpcWireHeader& command,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds) {
     LOG_ALWAYS_FATAL_IF(command.command != RPC_COMMAND_TRANSACT, "command: %d", command.command);
 
     CommandData transactionData(command.bodySize);
@@ -865,7 +863,7 @@
 status_t RpcState::processTransactInternal(
         const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
         CommandData transactionData,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds) {
     // for 'recursive' calls to this, we have already read and processed the
     // binder from the transaction data and taken reference counts into account,
     // so it is cached here.
@@ -1145,7 +1143,7 @@
             {const_cast<uint8_t*>(reply.data()), reply.dataSize()},
             objectTableSpan.toIovec(),
     };
-    return rpcSend(connection, session, "reply", iovs, arraysize(iovs), std::nullopt,
+    return rpcSend(connection, session, "reply", iovs, countof(iovs), std::nullopt,
                    rpcFields->mFds.get());
 }
 
@@ -1220,10 +1218,11 @@
     uint32_t protocolVersion = session->getProtocolVersion().value();
     if (protocolVersion < RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE &&
         !rpcFields->mObjectPositions.empty()) {
-        *errorMsg = StringPrintf("Parcel has attached objects but the session's protocol version "
-                                 "(%" PRIu32 ") is too old, must be at least %" PRIu32,
-                                 protocolVersion,
-                                 RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE);
+        std::stringstream ss;
+        ss << "Parcel has attached objects but the session's protocol version (" << protocolVersion
+           << ") is too old, must be at least "
+           << RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE;
+        *errorMsg = ss.str();
         return BAD_VALUE;
     }
 
@@ -1236,9 +1235,10 @@
             case RpcSession::FileDescriptorTransportMode::UNIX: {
                 constexpr size_t kMaxFdsPerMsg = 253;
                 if (rpcFields->mFds->size() > kMaxFdsPerMsg) {
-                    *errorMsg = StringPrintf("Too many file descriptors in Parcel for unix "
-                                             "domain socket: %zu (max is %zu)",
-                                             rpcFields->mFds->size(), kMaxFdsPerMsg);
+                    std::stringstream ss;
+                    ss << "Too many file descriptors in Parcel for unix domain socket: "
+                       << rpcFields->mFds->size() << " (max is " << kMaxFdsPerMsg << ")";
+                    *errorMsg = ss.str();
                     return BAD_VALUE;
                 }
                 break;
@@ -1249,9 +1249,10 @@
                 // available on Android
                 constexpr size_t kMaxFdsPerMsg = 8;
                 if (rpcFields->mFds->size() > kMaxFdsPerMsg) {
-                    *errorMsg = StringPrintf("Too many file descriptors in Parcel for Trusty "
-                                             "IPC connection: %zu (max is %zu)",
-                                             rpcFields->mFds->size(), kMaxFdsPerMsg);
+                    std::stringstream ss;
+                    ss << "Too many file descriptors in Parcel for Trusty IPC connection: "
+                       << rpcFields->mFds->size() << " (max is " << kMaxFdsPerMsg << ")";
+                    *errorMsg = ss.str();
                     return BAD_VALUE;
                 }
                 break;
diff --git a/libs/binder/RpcState.h b/libs/binder/RpcState.h
index 1fe71a5..8b84602 100644
--- a/libs/binder/RpcState.h
+++ b/libs/binder/RpcState.h
@@ -15,11 +15,12 @@
  */
 #pragma once
 
-#include <android-base/unique_fd.h>
+#include <binder/Functional.h>
 #include <binder/IBinder.h>
 #include <binder/Parcel.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcThreads.h>
+#include <binder/unique_fd.h>
 
 #include <map>
 #include <optional>
@@ -190,28 +191,29 @@
     [[nodiscard]] status_t rpcSend(
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             const char* what, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds =
+            const std::optional<binder::impl::SmallFunction<status_t()>>& altPoll,
+            const std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>* ancillaryFds =
                     nullptr);
-    [[nodiscard]] status_t rpcRec(
-            const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
-            const char* what, iovec* iovs, int niovs,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds = nullptr);
+    [[nodiscard]] status_t rpcRec(const sp<RpcSession::RpcConnection>& connection,
+                                  const sp<RpcSession>& session, const char* what, iovec* iovs,
+                                  int niovs,
+                                  std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>*
+                                          ancillaryFds = nullptr);
 
     [[nodiscard]] status_t waitForReply(const sp<RpcSession::RpcConnection>& connection,
                                         const sp<RpcSession>& session, Parcel* reply);
     [[nodiscard]] status_t processCommand(
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             const RpcWireHeader& command, CommandType type,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds);
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds);
     [[nodiscard]] status_t processTransact(
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             const RpcWireHeader& command,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds);
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds);
     [[nodiscard]] status_t processTransactInternal(
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             CommandData transactionData,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds);
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds);
     [[nodiscard]] status_t processDecStrong(const sp<RpcSession::RpcConnection>& connection,
                                             const sp<RpcSession>& session,
                                             const RpcWireHeader& command);
@@ -253,7 +255,7 @@
         struct AsyncTodo {
             sp<IBinder> ref;
             CommandData data;
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>> ancillaryFds;
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>> ancillaryFds;
             uint64_t asyncNumber = 0;
 
             bool operator<(const AsyncTodo& o) const {
diff --git a/libs/binder/RpcTransportRaw.cpp b/libs/binder/RpcTransportRaw.cpp
index ddbcb57..aa3a6e5 100644
--- a/libs/binder/RpcTransportRaw.cpp
+++ b/libs/binder/RpcTransportRaw.cpp
@@ -19,6 +19,7 @@
 
 #include <poll.h>
 #include <stddef.h>
+#include <sys/socket.h>
 
 #include <binder/RpcTransportRaw.h>
 
@@ -29,6 +30,10 @@
 
 namespace android {
 
+using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
+
 // RpcTransport with TLS disabled.
 class RpcTransportRaw : public RpcTransport {
 public:
@@ -54,13 +59,12 @@
 
     status_t interruptableWriteFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override {
+            const std::optional<SmallFunction<status_t()>>& altPoll,
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         bool sentFds = false;
         auto send = [&](iovec* iovs, int niovs) -> ssize_t {
-            ssize_t ret =
-                    sendMessageOnSocket(mSocket, iovs, niovs, sentFds ? nullptr : ancillaryFds);
+            ssize_t ret = binder::os::sendMessageOnSocket(mSocket, iovs, niovs,
+                                                          sentFds ? nullptr : ancillaryFds);
             sentFds |= ret > 0;
             return ret;
         };
@@ -70,10 +74,10 @@
 
     status_t interruptableReadFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override {
+            const std::optional<SmallFunction<status_t()>>& altPoll,
+            std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         auto recv = [&](iovec* iovs, int niovs) -> ssize_t {
-            return receiveMessageFromSocket(mSocket, iovs, niovs, ancillaryFds);
+            return binder::os::receiveMessageFromSocket(mSocket, iovs, niovs, ancillaryFds);
         };
         return interruptableReadOrWrite(mSocket, fdTrigger, iovs, niovs, recv, "recvmsg", POLLIN,
                                         altPoll);
diff --git a/libs/binder/RpcTransportTipcAndroid.cpp b/libs/binder/RpcTransportTipcAndroid.cpp
index 0c81d83..3819fb6 100644
--- a/libs/binder/RpcTransportTipcAndroid.cpp
+++ b/libs/binder/RpcTransportTipcAndroid.cpp
@@ -26,8 +26,9 @@
 #include "RpcState.h"
 #include "RpcTransportUtils.h"
 
-using android::base::Error;
-using android::base::Result;
+using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 namespace android {
 
@@ -75,9 +76,8 @@
 
     status_t interruptableWriteFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override {
+            const std::optional<SmallFunction<status_t()>>& altPoll,
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         auto writeFn = [&](iovec* iovs, size_t niovs) -> ssize_t {
             // TODO: send ancillaryFds. For now, we just abort if anyone tries
             // to send any.
@@ -93,9 +93,8 @@
 
     status_t interruptableReadFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /*ancillaryFds*/)
-            override {
+            const std::optional<SmallFunction<status_t()>>& altPoll,
+            std::vector<std::variant<unique_fd, borrowed_fd>>* /*ancillaryFds*/) override {
         auto readFn = [&](iovec* iovs, size_t niovs) -> ssize_t {
             // Fill the read buffer at most once per readFn call, then try to
             // return as much of it as possible. If the input iovecs are spread
diff --git a/libs/binder/RpcTransportTls.cpp b/libs/binder/RpcTransportTls.cpp
index efb09e9..579694c 100644
--- a/libs/binder/RpcTransportTls.cpp
+++ b/libs/binder/RpcTransportTls.cpp
@@ -18,6 +18,7 @@
 #include <log/log.h>
 
 #include <poll.h>
+#include <sys/socket.h>
 
 #include <openssl/bn.h>
 #include <openssl/ssl.h>
@@ -29,6 +30,8 @@
 #include "RpcState.h"
 #include "Utils.h"
 
+#include <sstream>
+
 #define SHOULD_LOG_TLS_DETAIL false
 
 #if SHOULD_LOG_TLS_DETAIL
@@ -38,6 +41,11 @@
 #endif
 
 namespace android {
+
+using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
+
 namespace {
 
 // Implement BIO for socket that ignores SIGPIPE.
@@ -51,7 +59,7 @@
     return 1;
 }
 int socketRead(BIO* bio, char* buf, int size) {
-    android::base::borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
+    borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
     int ret = TEMP_FAILURE_RETRY(::recv(fd.get(), buf, size, MSG_NOSIGNAL));
     BIO_clear_retry_flags(bio);
     if (errno == EAGAIN || errno == EWOULDBLOCK) {
@@ -61,7 +69,7 @@
 }
 
 int socketWrite(BIO* bio, const char* buf, int size) {
-    android::base::borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
+    borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
     int ret = TEMP_FAILURE_RETRY(::send(fd.get(), buf, size, MSG_NOSIGNAL));
     BIO_clear_retry_flags(bio);
     if (errno == EAGAIN || errno == EWOULDBLOCK) {
@@ -71,13 +79,13 @@
 }
 
 long socketCtrl(BIO* bio, int cmd, long num, void*) { // NOLINT
-    android::base::borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
+    borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
     if (cmd == BIO_CTRL_FLUSH) return 1;
     LOG_ALWAYS_FATAL("sockCtrl(fd=%d, %d, %ld)", fd.get(), cmd, num);
     return 0;
 }
 
-bssl::UniquePtr<BIO> newSocketBio(android::base::borrowed_fd fd) {
+bssl::UniquePtr<BIO> newSocketBio(borrowed_fd fd) {
     static const BIO_METHOD* gMethods = ([] {
         auto methods = BIO_meth_new(BIO_get_new_index(), "socket_no_signal");
         LOG_ALWAYS_FATAL_IF(0 == BIO_meth_set_write(methods, socketWrite), "BIO_meth_set_write");
@@ -181,10 +189,9 @@
     // |sslError| should be from Ssl::getError().
     // If |sslError| is WANT_READ / WANT_WRITE, poll for POLLIN / POLLOUT respectively. Otherwise
     // return error. Also return error if |fdTrigger| is triggered before or during poll().
-    status_t pollForSslError(
-            const android::RpcTransportFd& fd, int sslError, FdTrigger* fdTrigger,
-            const char* fnString, int additionalEvent,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll) {
+    status_t pollForSslError(const android::RpcTransportFd& fd, int sslError, FdTrigger* fdTrigger,
+                             const char* fnString, int additionalEvent,
+                             const std::optional<SmallFunction<status_t()>>& altPoll) {
         switch (sslError) {
             case SSL_ERROR_WANT_READ:
                 return handlePoll(POLLIN | additionalEvent, fd, fdTrigger, fnString, altPoll);
@@ -200,7 +207,7 @@
 
     status_t handlePoll(int event, const android::RpcTransportFd& fd, FdTrigger* fdTrigger,
                         const char* fnString,
-                        const std::optional<android::base::function_ref<status_t()>>& altPoll) {
+                        const std::optional<SmallFunction<status_t()>>& altPoll) {
         status_t ret;
         if (altPoll) {
             ret = (*altPoll)();
@@ -284,13 +291,12 @@
     status_t pollRead(void) override;
     status_t interruptableWriteFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override;
+            const std::optional<SmallFunction<status_t()>>& altPoll,
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override;
     status_t interruptableReadFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override;
+            const std::optional<SmallFunction<status_t()>>& altPoll,
+            std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override;
 
     bool isWaiting() override { return mSocket.isInPollingState(); };
 
@@ -320,8 +326,8 @@
 
 status_t RpcTransportTls::interruptableWriteFully(
         FdTrigger* fdTrigger, iovec* iovs, int niovs,
-        const std::optional<android::base::function_ref<status_t()>>& altPoll,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+        const std::optional<SmallFunction<status_t()>>& altPoll,
+        const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     (void)ancillaryFds;
 
     MAYBE_WAIT_IN_FLAKE_MODE;
@@ -366,8 +372,8 @@
 
 status_t RpcTransportTls::interruptableReadFully(
         FdTrigger* fdTrigger, iovec* iovs, int niovs,
-        const std::optional<android::base::function_ref<status_t()>>& altPoll,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+        const std::optional<SmallFunction<status_t()>>& altPoll,
+        std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     (void)ancillaryFds;
 
     MAYBE_WAIT_IN_FLAKE_MODE;
diff --git a/libs/binder/RpcTransportUtils.h b/libs/binder/RpcTransportUtils.h
index 32f0db8..fcf6675 100644
--- a/libs/binder/RpcTransportUtils.h
+++ b/libs/binder/RpcTransportUtils.h
@@ -15,7 +15,7 @@
  */
 #pragma once
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #include <poll.h>
 
 #include "FdTrigger.h"
@@ -27,7 +27,7 @@
 status_t interruptableReadOrWrite(
         const android::RpcTransportFd& socket, FdTrigger* fdTrigger, iovec* iovs, int niovs,
         SendOrReceive sendOrReceiveFun, const char* funName, int16_t event,
-        const std::optional<android::base::function_ref<status_t()>>& altPoll) {
+        const std::optional<binder::impl::SmallFunction<status_t()>>& altPoll) {
     MAYBE_WAIT_IN_FLAKE_MODE;
 
     if (niovs < 0) {
diff --git a/libs/binder/RpcTrusty.cpp b/libs/binder/RpcTrusty.cpp
index 3b53b05..a445196 100644
--- a/libs/binder/RpcTrusty.cpp
+++ b/libs/binder/RpcTrusty.cpp
@@ -16,15 +16,14 @@
 
 #define LOG_TAG "RpcTrusty"
 
-#include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcTransportTipcAndroid.h>
+#include <binder/unique_fd.h>
 #include <trusty/tipc.h>
 
 namespace android {
 
-using android::base::unique_fd;
+using android::binder::unique_fd;
 
 sp<RpcSession> RpcTrustyConnectWithSessionInitializer(
         const char* device, const char* port,
@@ -35,13 +34,13 @@
     auto request = [=] {
         int tipcFd = tipc_connect(device, port);
         if (tipcFd < 0) {
-            LOG(ERROR) << "Failed to connect to Trusty service. Error code: " << tipcFd;
+            ALOGE("Failed to connect to Trusty service. Error code: %d", tipcFd);
             return unique_fd();
         }
         return unique_fd(tipcFd);
     };
     if (status_t status = session->setupPreconnectedClient(unique_fd{}, request); status != OK) {
-        LOG(ERROR) << "Failed to set up Trusty client. Error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up Trusty client. Error: %s", statusToString(status).c_str());
         return nullptr;
     }
     return session;
diff --git a/libs/binder/ServiceManagerHost.cpp b/libs/binder/ServiceManagerHost.cpp
index 2b67f03..9482e3e 100644
--- a/libs/binder/ServiceManagerHost.cpp
+++ b/libs/binder/ServiceManagerHost.cpp
@@ -56,16 +56,16 @@
     [[nodiscard]] const std::optional<unsigned int>& hostPort() const { return mPort; }
 
 private:
-    DISALLOW_COPY_AND_ASSIGN(AdbForwarder);
+    AdbForwarder(const AdbForwarder&) = delete;
+    void operator=(const AdbForwarder&) = delete;
     explicit AdbForwarder(unsigned int port) : mPort(port) {}
     std::optional<unsigned int> mPort;
 };
 std::optional<AdbForwarder> AdbForwarder::forward(unsigned int devicePort) {
     auto result =
             execute({"adb", "forward", "tcp:0", "tcp:" + std::to_string(devicePort)}, nullptr);
-    if (!result.ok()) {
-        ALOGE("Unable to run `adb forward tcp:0 tcp:%d`: %s", devicePort,
-              result.error().message().c_str());
+    if (!result.has_value()) {
+        ALOGE("Unable to run `adb forward tcp:0 tcp:%d`", devicePort);
         return std::nullopt;
     }
     // Must end with exit code 0 (`has_value() && value() == 0`)
@@ -94,9 +94,8 @@
     if (!mPort.has_value()) return;
 
     auto result = execute({"adb", "forward", "--remove", "tcp:" + std::to_string(*mPort)}, nullptr);
-    if (!result.ok()) {
-        ALOGE("Unable to run `adb forward --remove tcp:%d`: %s", *mPort,
-              result.error().message().c_str());
+    if (!result.has_value()) {
+        ALOGE("Unable to run `adb forward --remove tcp:%d`", *mPort);
         return;
     }
     // Must end with exit code 0 (`has_value() && value() == 0`)
@@ -130,8 +129,7 @@
     serviceDispatcherArgs.insert(serviceDispatcherArgs.begin(), prefix.begin(), prefix.end());
 
     auto result = execute(std::move(serviceDispatcherArgs), &CommandResult::stdoutEndsWithNewLine);
-    if (!result.ok()) {
-        ALOGE("%s", result.error().message().c_str());
+    if (!result.has_value()) {
         return nullptr;
     }
 
diff --git a/libs/binder/ServiceManagerHost.h b/libs/binder/ServiceManagerHost.h
index c5310da..941ba3a 100644
--- a/libs/binder/ServiceManagerHost.h
+++ b/libs/binder/ServiceManagerHost.h
@@ -16,7 +16,6 @@
 
 #pragma once
 
-#include <android-base/macros.h>
 #include <android/os/IServiceManager.h>
 
 namespace android {
diff --git a/libs/binder/Utils.cpp b/libs/binder/Utils.cpp
index 0314b0f..d9a96af 100644
--- a/libs/binder/Utils.cpp
+++ b/libs/binder/Utils.cpp
@@ -24,4 +24,22 @@
     memset(data, 0, size);
 }
 
+std::string HexString(const void* bytes, size_t len) {
+    LOG_ALWAYS_FATAL_IF(len > 0 && bytes == nullptr, "%p %zu", bytes, len);
+
+    // b/132916539: Doing this the 'C way', std::setfill triggers ubsan implicit conversion
+    const uint8_t* bytes8 = static_cast<const uint8_t*>(bytes);
+    const char chars[] = "0123456789abcdef";
+    std::string result;
+    result.resize(len * 2);
+
+    for (size_t i = 0; i < len; i++) {
+        const auto c = bytes8[i];
+        result[2 * i] = chars[c >> 4];
+        result[2 * i + 1] = chars[c & 0xf];
+    }
+
+    return result;
+}
+
 } // namespace android
diff --git a/libs/binder/Utils.h b/libs/binder/Utils.h
index e04199c..eec09eb 100644
--- a/libs/binder/Utils.h
+++ b/libs/binder/Utils.h
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#pragma once
+
 #include <stddef.h>
 #include <sys/uio.h>
 #include <cstdint>
@@ -22,6 +24,30 @@
 #include <log/log.h>
 #include <utils/Errors.h>
 
+#define PLOGE(fmt, ...)                                                     \
+    do {                                                                    \
+        auto savedErrno = errno;                                            \
+        ALOGE(fmt ": %s" __VA_OPT__(, ) __VA_ARGS__, strerror(savedErrno)); \
+    } while (0)
+#define PLOGF(fmt, ...)                                                                \
+    do {                                                                               \
+        auto savedErrno = errno;                                                       \
+        LOG_ALWAYS_FATAL(fmt ": %s" __VA_OPT__(, ) __VA_ARGS__, strerror(savedErrno)); \
+    } while (0)
+
+/* TEMP_FAILURE_RETRY is not available on macOS and Trusty. */
+#ifndef TEMP_FAILURE_RETRY
+/* Used to retry syscalls that can return EINTR. */
+#define TEMP_FAILURE_RETRY(exp)                \
+    ({                                         \
+        __typeof__(exp) _rc;                   \
+        do {                                   \
+            _rc = (exp);                       \
+        } while (_rc == -1 && errno == EINTR); \
+        _rc;                                   \
+    })
+#endif
+
 #define TEST_AND_RETURN(value, expr)            \
     do {                                        \
         if (!(expr)) {                          \
@@ -32,6 +58,17 @@
 
 namespace android {
 
+/**
+ * Get the size of a statically initialized array.
+ *
+ * \param N the array to get the size of.
+ * \return the size of the array.
+ */
+template <typename T, size_t N>
+constexpr size_t countof(T (&)[N]) {
+    return N;
+}
+
 // avoid optimizations
 void zeroMemory(uint8_t* data, size_t size);
 
@@ -70,4 +107,10 @@
     }
 };
 
+// Converts binary data into a hexString.
+//
+// Hex values are printed in order, e.g. 0xDEAD will result in 'adde' because
+// Android is little-endian.
+std::string HexString(const void* bytes, size_t len);
+
 }   // namespace android
diff --git a/libs/binder/UtilsHost.cpp b/libs/binder/UtilsHost.cpp
index 52b8f69..ae1a6c4 100644
--- a/libs/binder/UtilsHost.cpp
+++ b/libs/binder/UtilsHost.cpp
@@ -25,8 +25,13 @@
 
 #include <log/log.h>
 
+#include "FdUtils.h"
+#include "Utils.h"
+
 namespace android {
 
+using android::binder::unique_fd;
+
 CommandResult::~CommandResult() {
     if (!pid.has_value()) return;
     if (*pid == 0) {
@@ -72,8 +77,8 @@
     return ss.str();
 }
 
-android::base::Result<CommandResult> execute(std::vector<std::string> argStringVec,
-                                             const std::function<bool(const CommandResult&)>& end) {
+std::optional<CommandResult> execute(std::vector<std::string> argStringVec,
+                                     const std::function<bool(const CommandResult&)>& end) {
     // turn vector<string> into null-terminated char* vector.
     std::vector<char*> argv;
     argv.reserve(argStringVec.size() + 1);
@@ -81,15 +86,22 @@
     argv.push_back(nullptr);
 
     CommandResult ret;
-    android::base::unique_fd outWrite;
-    if (!android::base::Pipe(&ret.outPipe, &outWrite))
-        return android::base::ErrnoError() << "pipe() for outPipe";
-    android::base::unique_fd errWrite;
-    if (!android::base::Pipe(&ret.errPipe, &errWrite))
-        return android::base::ErrnoError() << "pipe() for errPipe";
+    unique_fd outWrite;
+    if (!binder::Pipe(&ret.outPipe, &outWrite)) {
+        PLOGE("pipe() for outPipe");
+        return {};
+    }
+    unique_fd errWrite;
+    if (!binder::Pipe(&ret.errPipe, &errWrite)) {
+        PLOGE("pipe() for errPipe");
+        return {};
+    }
 
     int pid = fork();
-    if (pid == -1) return android::base::ErrnoError() << "fork()";
+    if (pid == -1) {
+        PLOGE("fork()");
+        return {};
+    }
     if (pid == 0) {
         // child
         ret.outPipe.reset();
@@ -111,7 +123,7 @@
     errWrite.reset();
     ret.pid = pid;
 
-    auto handlePoll = [](android::base::unique_fd* fd, const pollfd* pfd, std::string* s) {
+    auto handlePoll = [](unique_fd* fd, const pollfd* pfd, std::string* s) {
         if (!fd->ok()) return true;
         if (pfd->revents & POLLIN) {
             char buf[1024];
@@ -140,12 +152,19 @@
             *errPollFd = {.fd = ret.errPipe.get(), .events = POLLIN};
         }
         int pollRet = poll(fds, nfds, 1000 /* ms timeout */);
-        if (pollRet == -1) return android::base::ErrnoError() << "poll()";
+        if (pollRet == -1) {
+            PLOGE("poll()");
+            return {};
+        }
 
-        if (!handlePoll(&ret.outPipe, outPollFd, &ret.stdoutStr))
-            return android::base::ErrnoError() << "read(stdout)";
-        if (!handlePoll(&ret.errPipe, errPollFd, &ret.stderrStr))
-            return android::base::ErrnoError() << "read(stderr)";
+        if (!handlePoll(&ret.outPipe, outPollFd, &ret.stdoutStr)) {
+            PLOGE("read(stdout)");
+            return {};
+        }
+        if (!handlePoll(&ret.errPipe, errPollFd, &ret.stderrStr)) {
+            PLOGE("read(stderr)");
+            return {};
+        }
 
         if (end && end(ret)) return ret;
     }
@@ -154,7 +173,10 @@
     while (ret.pid.has_value()) {
         int status;
         auto exitPid = waitpid(pid, &status, 0);
-        if (exitPid == -1) return android::base::ErrnoError() << "waitpid(" << pid << ")";
+        if (exitPid == -1) {
+            PLOGE("waitpid(%d)", pid);
+            return {};
+        }
         if (exitPid == pid) {
             if (WIFEXITED(status)) {
                 ret.pid = std::nullopt;
diff --git a/libs/binder/UtilsHost.h b/libs/binder/UtilsHost.h
index 98ac4e0..b582f17 100644
--- a/libs/binder/UtilsHost.h
+++ b/libs/binder/UtilsHost.h
@@ -23,8 +23,8 @@
 #include <vector>
 
 #include <android-base/macros.h>
-#include <android-base/result.h>
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
+#include <utils/Errors.h>
 
 /**
  * Log a lot more information about host-device binder communication, when debugging issues.
@@ -46,8 +46,8 @@
     std::string stdoutStr;
     std::string stderrStr;
 
-    android::base::unique_fd outPipe;
-    android::base::unique_fd errPipe;
+    binder::unique_fd outPipe;
+    binder::unique_fd errPipe;
 
     CommandResult() = default;
     CommandResult(CommandResult&& other) noexcept { (*this) = std::move(other); }
@@ -67,7 +67,8 @@
     }
 
 private:
-    DISALLOW_COPY_AND_ASSIGN(CommandResult);
+    CommandResult(const CommandResult&) = delete;
+    void operator=(const CommandResult&) = delete;
 };
 
 std::ostream& operator<<(std::ostream& os, const CommandResult& res);
@@ -94,6 +95,6 @@
 //
 // If the parent process has encountered any errors for system calls, return ExecuteError with
 // the proper errno set.
-android::base::Result<CommandResult> execute(std::vector<std::string> argStringVec,
-                                             const std::function<bool(const CommandResult&)>& end);
+std::optional<CommandResult> execute(std::vector<std::string> argStringVec,
+                                     const std::function<bool(const CommandResult&)>& end);
 } // namespace android
diff --git a/libs/binder/file.cpp b/libs/binder/file.cpp
new file mode 100644
index 0000000..bac667e
--- /dev/null
+++ b/libs/binder/file.cpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "file.h"
+
+#ifdef BINDER_NO_LIBBASE
+
+#include <stdint.h>
+
+// clang-format off
+
+namespace android::binder {
+
+bool ReadFully(borrowed_fd fd, void* data, size_t byte_count) {
+  uint8_t* p = reinterpret_cast<uint8_t*>(data);
+  size_t remaining = byte_count;
+  while (remaining > 0) {
+    ssize_t n = TEMP_FAILURE_RETRY(read(fd.get(), p, remaining));
+    if (n == 0) {  // EOF
+      errno = ENODATA;
+      return false;
+    }
+    if (n == -1) return false;
+    p += n;
+    remaining -= n;
+  }
+  return true;
+}
+
+bool WriteFully(borrowed_fd fd, const void* data, size_t byte_count) {
+  const uint8_t* p = reinterpret_cast<const uint8_t*>(data);
+  size_t remaining = byte_count;
+  while (remaining > 0) {
+    ssize_t n = TEMP_FAILURE_RETRY(write(fd.get(), p, remaining));
+    if (n == -1) return false;
+    p += n;
+    remaining -= n;
+  }
+  return true;
+}
+
+}  // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/file.h b/libs/binder/file.h
new file mode 100644
index 0000000..bcbfa31
--- /dev/null
+++ b/libs/binder/file.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef BINDER_NO_LIBBASE
+
+#include <android-base/file.h>
+
+namespace android::binder {
+using android::base::ReadFully;
+using android::base::WriteFully;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <binder/unique_fd.h>
+
+#include <string_view>
+
+namespace android::binder {
+
+bool ReadFully(borrowed_fd fd, void* data, size_t byte_count);
+bool WriteFully(borrowed_fd fd, const void* data, size_t byte_count);
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/include/binder/Binder.h b/libs/binder/include/binder/Binder.h
index 744da0f..7a65ff4 100644
--- a/libs/binder/include/binder/Binder.h
+++ b/libs/binder/include/binder/Binder.h
@@ -102,7 +102,7 @@
     // to another process.
     void setParceled();
 
-    [[nodiscard]] status_t setRpcClientDebug(android::base::unique_fd clientFd,
+    [[nodiscard]] status_t setRpcClientDebug(binder::unique_fd clientFd,
                                              const sp<IBinder>& keepAliveBinder);
 
 protected:
diff --git a/libs/binder/include/binder/BpBinder.h b/libs/binder/include/binder/BpBinder.h
index 28fb9f1..89a4d27 100644
--- a/libs/binder/include/binder/BpBinder.h
+++ b/libs/binder/include/binder/BpBinder.h
@@ -16,9 +16,9 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
-#include <utils/Mutex.h>
+#include <binder/RpcThreads.h>
+#include <binder/unique_fd.h>
 
 #include <map>
 #include <optional>
@@ -94,7 +94,7 @@
 
     // Start recording transactions to the unique_fd.
     // See RecordedTransaction.h for more details.
-    status_t startRecordingBinder(const android::base::unique_fd& fd);
+    status_t startRecordingBinder(const binder::unique_fd& fd);
     // Stop the current recording.
     status_t stopRecordingBinder();
 
@@ -193,7 +193,7 @@
             void                reportOneDeath(const Obituary& obit);
             bool                isDescriptorCached() const;
 
-    mutable Mutex               mLock;
+    mutable RpcMutex            mLock;
             volatile int32_t    mAlive;
             volatile int32_t    mObitsSent;
             Vector<Obituary>*   mObituaries;
@@ -201,7 +201,7 @@
     mutable String16            mDescriptorCache;
             int32_t             mTrackedUid;
 
-    static Mutex                                sTrackingLock;
+    static RpcMutex                             sTrackingLock;
     static std::unordered_map<int32_t,uint32_t> sTrackingMap;
     static int                                  sNumTrackedUids;
     static std::atomic_bool                     sCountByUidEnabled;
diff --git a/libs/binder/include/binder/Functional.h b/libs/binder/include/binder/Functional.h
new file mode 100644
index 0000000..08e3b21
--- /dev/null
+++ b/libs/binder/include/binder/Functional.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <functional>
+#include <memory>
+
+namespace android::binder::impl {
+
+template <typename F>
+constexpr void assert_small_callable() {
+    // While this buffer (std::function::__func::__buf_) is an implementation detail generally not
+    // accessible to users, it's a good bet to assume its size to be around 3 pointers.
+    constexpr size_t kFunctionBufferSize = 3 * sizeof(void*);
+
+    static_assert(sizeof(F) <= kFunctionBufferSize,
+                  "Supplied callable is larger than std::function optimization buffer. "
+                  "Try using std::ref, but make sure lambda lives long enough to be called.");
+}
+
+template <typename F>
+std::unique_ptr<void, std::function<void(void*)>> make_scope_guard(F&& f) {
+    assert_small_callable<decltype(std::bind(f))>();
+    return {reinterpret_cast<void*>(true), std::bind(f)};
+}
+
+template <typename T>
+class SmallFunction : public std::function<T> {
+public:
+    template <typename F>
+    SmallFunction(F&& f) : std::function<T>(f) {
+        assert_small_callable<F>();
+    }
+};
+
+} // namespace android::binder::impl
diff --git a/libs/binder/include/binder/IBinder.h b/libs/binder/include/binder/IBinder.h
index e75d548..dad9a17 100644
--- a/libs/binder/include/binder/IBinder.h
+++ b/libs/binder/include/binder/IBinder.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <utils/String16.h>
@@ -175,7 +175,7 @@
      *
      * On death of @a keepAliveBinder, the RpcServer shuts down.
      */
-    [[nodiscard]] status_t setRpcClientDebug(android::base::unique_fd socketFd,
+    [[nodiscard]] status_t setRpcClientDebug(binder::unique_fd socketFd,
                                              const sp<IBinder>& keepAliveBinder);
 
     // NOLINTNEXTLINE(google-default-arguments)
diff --git a/libs/binder/include/binder/Parcel.h b/libs/binder/include/binder/Parcel.h
index 45e5ace..09da6e3 100644
--- a/libs/binder/include/binder/Parcel.h
+++ b/libs/binder/include/binder/Parcel.h
@@ -25,13 +25,14 @@
 #include <variant>
 #include <vector>
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
+#ifndef BINDER_DISABLE_NATIVE_HANDLE
 #include <cutils/native_handle.h>
+#endif
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <utils/String16.h>
 #include <utils/Vector.h>
-#include <utils/Flattenable.h>
 
 #include <binder/IInterface.h>
 #include <binder/Parcelable.h>
@@ -324,11 +325,13 @@
     template<typename T>
     status_t            writeVectorSize(const std::unique_ptr<std::vector<T>>& val) __attribute__((deprecated("use std::optional version instead")));
 
+#ifndef BINDER_DISABLE_NATIVE_HANDLE
     // Place a native_handle into the parcel (the native_handle's file-
     // descriptors are dup'ed, so it is safe to delete the native_handle
     // when this function returns).
     // Doesn't take ownership of the native_handle.
     status_t            writeNativeHandle(const native_handle* handle);
+#endif
 
     // Place a file descriptor into the parcel.  The given fd must remain
     // valid for the lifetime of the parcel.
@@ -351,17 +354,16 @@
     // Place a file descriptor into the parcel.  This will not affect the
     // semantics of the smart file descriptor. A new descriptor will be
     // created, and will be closed when the parcel is destroyed.
-    status_t            writeUniqueFileDescriptor(
-                            const base::unique_fd& fd);
+    status_t writeUniqueFileDescriptor(const binder::unique_fd& fd);
 
     // Place a vector of file desciptors into the parcel. Each descriptor is
     // dup'd as in writeDupFileDescriptor
-    status_t            writeUniqueFileDescriptorVector(
-                            const std::optional<std::vector<base::unique_fd>>& val);
-    status_t            writeUniqueFileDescriptorVector(
-                            const std::unique_ptr<std::vector<base::unique_fd>>& val) __attribute__((deprecated("use std::optional version instead")));
-    status_t            writeUniqueFileDescriptorVector(
-                            const std::vector<base::unique_fd>& val);
+    status_t writeUniqueFileDescriptorVector(
+            const std::optional<std::vector<binder::unique_fd>>& val);
+    status_t writeUniqueFileDescriptorVector(
+            const std::unique_ptr<std::vector<binder::unique_fd>>& val)
+            __attribute__((deprecated("use std::optional version instead")));
+    status_t writeUniqueFileDescriptorVector(const std::vector<binder::unique_fd>& val);
 
     // Writes a blob to the parcel.
     // If the blob is small, then it is stored in-place, otherwise it is
@@ -559,13 +561,14 @@
     // response headers rather than doing it by hand.
     int32_t             readExceptionCode() const;
 
+#ifndef BINDER_DISABLE_NATIVE_HANDLE
     // Retrieve native_handle from the parcel. This returns a copy of the
     // parcel's native_handle (the caller takes ownership). The caller
-    // must free the native_handle with native_handle_close() and 
+    // must free the native_handle with native_handle_close() and
     // native_handle_delete().
     native_handle*     readNativeHandle() const;
+#endif
 
-    
     // Retrieve a file descriptor from the parcel.  This returns the raw fd
     // in the parcel, which you do not own -- use dup() to get your own copy.
     int                 readFileDescriptor() const;
@@ -575,20 +578,17 @@
     int                 readParcelFileDescriptor() const;
 
     // Retrieve a smart file descriptor from the parcel.
-    status_t            readUniqueFileDescriptor(
-                            base::unique_fd* val) const;
+    status_t readUniqueFileDescriptor(binder::unique_fd* val) const;
 
     // Retrieve a Java "parcel file descriptor" from the parcel.
-    status_t            readUniqueParcelFileDescriptor(base::unique_fd* val) const;
-
+    status_t readUniqueParcelFileDescriptor(binder::unique_fd* val) const;
 
     // Retrieve a vector of smart file descriptors from the parcel.
-    status_t            readUniqueFileDescriptorVector(
-                            std::optional<std::vector<base::unique_fd>>* val) const;
-    status_t            readUniqueFileDescriptorVector(
-                            std::unique_ptr<std::vector<base::unique_fd>>* val) const __attribute__((deprecated("use std::optional version instead")));
-    status_t            readUniqueFileDescriptorVector(
-                            std::vector<base::unique_fd>* val) const;
+    status_t readUniqueFileDescriptorVector(
+            std::optional<std::vector<binder::unique_fd>>* val) const;
+    status_t readUniqueFileDescriptorVector(std::unique_ptr<std::vector<binder::unique_fd>>* val)
+            const __attribute__((deprecated("use std::optional version instead")));
+    status_t readUniqueFileDescriptorVector(std::vector<binder::unique_fd>* val) const;
 
     // Reads a blob from the parcel.
     // The caller should call release() on the blob after reading its contents.
@@ -625,7 +625,7 @@
     status_t rpcSetDataReference(
             const sp<RpcSession>& session, const uint8_t* data, size_t dataSize,
             const uint32_t* objectTable, size_t objectTableSize,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds,
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds,
             release_func relFunc);
 
     status_t            finishWrite(size_t len);
@@ -702,7 +702,7 @@
     // 5) Nullable objects contained in std::optional, std::unique_ptr, or std::shared_ptr.
     //
     // And active objects from the Android ecosystem such as:
-    // 6) File descriptors, base::unique_fd (kernel object handles)
+    // 6) File descriptors, unique_fd (kernel object handles)
     // 7) Binder objects, sp<IBinder> (active Android RPC handles)
     //
     // Objects from (1) through (5) serialize into the mData buffer.
@@ -953,9 +953,7 @@
         return writeUtf8AsUtf16(t);
     }
 
-    status_t writeData(const base::unique_fd& t) {
-        return writeUniqueFileDescriptor(t);
-    }
+    status_t writeData(const binder::unique_fd& t) { return writeUniqueFileDescriptor(t); }
 
     status_t writeData(const Parcelable& t) {  // std::is_base_of_v<Parcelable, T>
         // implemented here. writeParcelable() calls this.
@@ -1102,9 +1100,7 @@
         return readUtf8FromUtf16(t);
     }
 
-    status_t readData(base::unique_fd* t) const {
-        return readUniqueFileDescriptor(t);
-    }
+    status_t readData(binder::unique_fd* t) const { return readUniqueFileDescriptor(t); }
 
     status_t readData(Parcelable* t) const { // std::is_base_of_v<Parcelable, T>
         // implemented here. readParcelable() calls this.
@@ -1289,6 +1285,7 @@
 
     // Fields only needed when parcelling for "kernel Binder".
     struct KernelFields {
+        KernelFields() {}
         binder_size_t* mObjects = nullptr;
         size_t mObjectsSize = 0;
         size_t mObjectsCapacity = 0;
@@ -1323,7 +1320,7 @@
         // same order as `mObjectPositions`.
         //
         // Boxed to save space. Lazy allocated.
-        std::unique_ptr<std::vector<std::variant<base::unique_fd, base::borrowed_fd>>> mFds;
+        std::unique_ptr<std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>> mFds;
     };
     std::variant<KernelFields, RpcFields> mVariantFields;
 
diff --git a/libs/binder/include/binder/ParcelFileDescriptor.h b/libs/binder/include/binder/ParcelFileDescriptor.h
index 08d8e43..c4ef354 100644
--- a/libs/binder/include/binder/ParcelFileDescriptor.h
+++ b/libs/binder/include/binder/ParcelFileDescriptor.h
@@ -16,9 +16,9 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/Parcel.h>
 #include <binder/Parcelable.h>
+#include <binder/unique_fd.h>
 
 namespace android {
 namespace os {
@@ -29,14 +29,14 @@
 class ParcelFileDescriptor : public android::Parcelable {
 public:
     ParcelFileDescriptor();
-    explicit ParcelFileDescriptor(android::base::unique_fd fd);
+    explicit ParcelFileDescriptor(binder::unique_fd fd);
     ParcelFileDescriptor(ParcelFileDescriptor&& other) noexcept : mFd(std::move(other.mFd)) { }
     ParcelFileDescriptor& operator=(ParcelFileDescriptor&& other) noexcept = default;
     ~ParcelFileDescriptor() override;
 
     int get() const { return mFd.get(); }
-    android::base::unique_fd release() { return std::move(mFd); }
-    void reset(android::base::unique_fd fd = android::base::unique_fd()) { mFd = std::move(fd); }
+    binder::unique_fd release() { return std::move(mFd); }
+    void reset(binder::unique_fd fd = binder::unique_fd()) { mFd = std::move(fd); }
 
     // android::Parcelable override:
     android::status_t writeToParcel(android::Parcel* parcel) const override;
@@ -62,7 +62,7 @@
         return mFd.get() >= rhs.mFd.get();
     }
 private:
-    android::base::unique_fd mFd;
+    binder::unique_fd mFd;
 };
 
 } // namespace os
diff --git a/libs/binder/include/binder/ProcessState.h b/libs/binder/include/binder/ProcessState.h
index 9dc370b..3672702 100644
--- a/libs/binder/include/binder/ProcessState.h
+++ b/libs/binder/include/binder/ProcessState.h
@@ -17,13 +17,13 @@
 #pragma once
 
 #include <binder/IBinder.h>
-#include <utils/KeyedVector.h>
-#include <utils/Mutex.h>
 #include <utils/String16.h>
 #include <utils/String8.h>
 
 #include <pthread.h>
 
+#include <mutex>
+
 // ---------------------------------------------------------------------------
 namespace android {
 
@@ -178,7 +178,7 @@
     // Time when thread pool was emptied
     int64_t mStarvationStartTimeMs;
 
-    mutable Mutex mLock; // protects everything below.
+    mutable std::mutex mLock; // protects everything below.
 
     Vector<handle_entry> mHandleToObject;
 
diff --git a/libs/binder/include/binder/RecordedTransaction.h b/libs/binder/include/binder/RecordedTransaction.h
index eb765fe..505c199 100644
--- a/libs/binder/include/binder/RecordedTransaction.h
+++ b/libs/binder/include/binder/RecordedTransaction.h
@@ -16,8 +16,8 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/Parcel.h>
+#include <binder/unique_fd.h>
 #include <mutex>
 
 namespace android {
@@ -31,7 +31,8 @@
 class RecordedTransaction {
 public:
     // Filled with the first transaction from fd.
-    static std::optional<RecordedTransaction> fromFile(const android::base::unique_fd& fd);
+
+    static std::optional<RecordedTransaction> fromFile(const binder::unique_fd& fd);
     // Filled with the arguments.
     static std::optional<RecordedTransaction> fromDetails(const String16& interfaceName,
                                                           uint32_t code, uint32_t flags,
@@ -39,7 +40,7 @@
                                                           const Parcel& reply, status_t err);
     RecordedTransaction(RecordedTransaction&& t) noexcept;
 
-    [[nodiscard]] status_t dumpToFile(const android::base::unique_fd& fd) const;
+    [[nodiscard]] status_t dumpToFile(const binder::unique_fd& fd) const;
 
     const std::string& getInterfaceName() const;
     uint32_t getCode() const;
@@ -53,8 +54,8 @@
 private:
     RecordedTransaction() = default;
 
-    android::status_t writeChunk(const android::base::borrowed_fd, uint32_t chunkType,
-                                 size_t byteCount, const uint8_t* data) const;
+    android::status_t writeChunk(const binder::borrowed_fd, uint32_t chunkType, size_t byteCount,
+                                 const uint8_t* data) const;
 
 #pragma clang diagnostic push
 #pragma clang diagnostic error "-Wpadded"
diff --git a/libs/binder/include/binder/RpcServer.h b/libs/binder/include/binder/RpcServer.h
index 2153f16..a07880d 100644
--- a/libs/binder/include/binder/RpcServer.h
+++ b/libs/binder/include/binder/RpcServer.h
@@ -15,11 +15,11 @@
  */
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcThreads.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
@@ -59,7 +59,7 @@
      * to RpcSession::setupUnixDomainSocketBootstrapClient. Multiple client
      * session can be created from the client end of the pair.
      */
-    [[nodiscard]] status_t setupUnixDomainSocketBootstrapServer(base::unique_fd serverFd);
+    [[nodiscard]] status_t setupUnixDomainSocketBootstrapServer(binder::unique_fd serverFd);
 
     /**
      * This represents a session for responses, e.g.:
@@ -79,7 +79,7 @@
      * This method is used in the libbinder_rpc_unstable API
      * RunInitUnixDomainRpcServer().
      */
-    [[nodiscard]] status_t setupRawSocketServer(base::unique_fd socket_fd);
+    [[nodiscard]] status_t setupRawSocketServer(binder::unique_fd socket_fd);
 
     /**
      * Creates an RPC server binding to the given CID at the given port.
@@ -111,13 +111,13 @@
     /**
      * If hasServer(), return the server FD. Otherwise return invalid FD.
      */
-    [[nodiscard]] base::unique_fd releaseServer();
+    [[nodiscard]] binder::unique_fd releaseServer();
 
     /**
      * Set up server using an external FD previously set up by releaseServer().
      * Return false if there's already a server.
      */
-    [[nodiscard]] status_t setupExternalServer(base::unique_fd serverFd);
+    [[nodiscard]] status_t setupExternalServer(binder::unique_fd serverFd);
 
     /**
      * This must be called before adding a client session. This corresponds
@@ -193,7 +193,7 @@
      *
      * The only argument is a successfully created file descriptor, not bound to an address yet.
      */
-    void setServerSocketModifier(std::function<void(base::borrowed_fd)>&& modifier);
+    void setServerSocketModifier(std::function<void(binder::borrowed_fd)>&& modifier);
 
     /**
      * See RpcTransportCtx::getCertificate
@@ -249,7 +249,7 @@
     void onSessionIncomingThreadEnded() override;
 
     status_t setupExternalServer(
-            base::unique_fd serverFd,
+            binder::unique_fd serverFd,
             std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn);
 
     static constexpr size_t kRpcAddressSize = 128;
@@ -279,7 +279,7 @@
     wp<IBinder> mRootObjectWeak;
     std::function<sp<IBinder>(wp<RpcSession>, const void*, size_t)> mRootObjectFactory;
     std::function<bool(const void*, size_t)> mConnectionFilter;
-    std::function<void(base::borrowed_fd)> mServerSocketModifier;
+    std::function<void(binder::borrowed_fd)> mServerSocketModifier;
     std::map<std::vector<uint8_t>, sp<RpcSession>> mSessions;
     std::unique_ptr<FdTrigger> mShutdownTrigger;
     RpcConditionVariable mShutdownCv;
diff --git a/libs/binder/include/binder/RpcSession.h b/libs/binder/include/binder/RpcSession.h
index cb64603..11fbde9 100644
--- a/libs/binder/include/binder/RpcSession.h
+++ b/libs/binder/include/binder/RpcSession.h
@@ -15,11 +15,10 @@
  */
 #pragma once
 
-#include <android-base/threads.h>
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
 #include <binder/RpcThreads.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
@@ -124,7 +123,7 @@
     /**
      * Connects to an RPC server over a nameless Unix domain socket pair.
      */
-    [[nodiscard]] status_t setupUnixDomainSocketBootstrapClient(base::unique_fd bootstrap);
+    [[nodiscard]] status_t setupUnixDomainSocketBootstrapClient(binder::unique_fd bootstrap);
 
     /**
      * Connects to an RPC server at the CVD & port.
@@ -146,8 +145,8 @@
      *
      * For future compatibility, 'request' should not reference any stack data.
      */
-    [[nodiscard]] status_t setupPreconnectedClient(base::unique_fd fd,
-                                                   std::function<base::unique_fd()>&& request);
+    [[nodiscard]] status_t setupPreconnectedClient(binder::unique_fd fd,
+                                                   std::function<binder::unique_fd()>&& request);
 
     /**
      * For debugging!
diff --git a/libs/binder/include/binder/RpcThreads.h b/libs/binder/include/binder/RpcThreads.h
index b80d116..d25f292 100644
--- a/libs/binder/include/binder/RpcThreads.h
+++ b/libs/binder/include/binder/RpcThreads.h
@@ -17,8 +17,6 @@
 
 #include <pthread.h>
 
-#include <android-base/threads.h>
-
 #include <condition_variable>
 #include <functional>
 #include <memory>
@@ -121,10 +119,6 @@
 }
 } // namespace rpc_this_thread
 
-static inline uint64_t rpcGetThreadId() {
-    return 0;
-}
-
 static inline void rpcJoinIfSingleThreaded(RpcMaybeThread& t) {
     t.join();
 }
@@ -136,10 +130,6 @@
 using RpcMaybeThread = std::thread;
 namespace rpc_this_thread = std::this_thread;
 
-static inline uint64_t rpcGetThreadId() {
-    return base::GetThreadId();
-}
-
 static inline void rpcJoinIfSingleThreaded(RpcMaybeThread&) {}
 #endif // BINDER_RPC_SINGLE_THREADED
 
diff --git a/libs/binder/include/binder/RpcTransport.h b/libs/binder/include/binder/RpcTransport.h
index 6db9ad9..a50cdc1 100644
--- a/libs/binder/include/binder/RpcTransport.h
+++ b/libs/binder/include/binder/RpcTransport.h
@@ -25,12 +25,12 @@
 #include <variant>
 #include <vector>
 
-#include <android-base/function_ref.h>
-#include <android-base/unique_fd.h>
 #include <utils/Errors.h>
 
+#include <binder/Functional.h>
 #include <binder/RpcCertificateFormat.h>
 #include <binder/RpcThreads.h>
+#include <binder/unique_fd.h>
 
 #include <sys/uio.h>
 
@@ -85,13 +85,14 @@
      *   error - interrupted (failure or trigger)
      */
     [[nodiscard]] virtual status_t interruptableWriteFully(
-            FdTrigger *fdTrigger, iovec *iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>> &altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>> *ancillaryFds) = 0;
+            FdTrigger* fdTrigger, iovec* iovs, int niovs,
+            const std::optional<binder::impl::SmallFunction<status_t()>>& altPoll,
+            const std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>*
+                    ancillaryFds) = 0;
     [[nodiscard]] virtual status_t interruptableReadFully(
-            FdTrigger *fdTrigger, iovec *iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>> &altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>> *ancillaryFds) = 0;
+            FdTrigger* fdTrigger, iovec* iovs, int niovs,
+            const std::optional<binder::impl::SmallFunction<status_t()>>& altPoll,
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>* ancillaryFds) = 0;
 
     /**
      *  Check whether any threads are blocked while polling the transport
@@ -177,10 +178,10 @@
     void setPollingState(bool state) const { isPolling = state; }
 
 public:
-    base::unique_fd fd;
+    binder::unique_fd fd;
 
     RpcTransportFd() = default;
-    explicit RpcTransportFd(base::unique_fd &&descriptor)
+    explicit RpcTransportFd(binder::unique_fd&& descriptor)
           : isPolling(false), fd(std::move(descriptor)) {}
 
     RpcTransportFd(RpcTransportFd &&transportFd) noexcept
@@ -192,7 +193,7 @@
         return *this;
     }
 
-    RpcTransportFd &operator=(base::unique_fd &&descriptor) noexcept {
+    RpcTransportFd& operator=(binder::unique_fd&& descriptor) noexcept {
         fd = std::move(descriptor);
         isPolling = false;
         return *this;
diff --git a/libs/binder/include/binder/unique_fd.h b/libs/binder/include/binder/unique_fd.h
new file mode 100644
index 0000000..439b8a2
--- /dev/null
+++ b/libs/binder/include/binder/unique_fd.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef BINDER_NO_LIBBASE
+
+#include <android-base/unique_fd.h>
+
+namespace android::binder {
+using android::base::borrowed_fd;
+using android::base::unique_fd;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <errno.h>
+#include <fcntl.h> // not needed for unique_fd, but a lot of users depend on open(3)
+#include <unistd.h>
+
+namespace android::binder {
+
+// Container for a file descriptor that automatically closes the descriptor as
+// it goes out of scope.
+//
+//      unique_fd ufd(open("/some/path", "r"));
+//      if (!ufd.ok()) return error;
+//
+//      // Do something useful with ufd.get(), possibly including early 'return'.
+//
+//      return 0; // Descriptor is closed for you.
+//
+class unique_fd final {
+public:
+    unique_fd() {}
+
+    explicit unique_fd(int fd) { reset(fd); }
+    ~unique_fd() { reset(); }
+
+    unique_fd(const unique_fd&) = delete;
+    void operator=(const unique_fd&) = delete;
+    unique_fd(unique_fd&& other) noexcept { reset(other.release()); }
+    unique_fd& operator=(unique_fd&& s) noexcept {
+        int fd = s.fd_;
+        s.fd_ = -1;
+        reset(fd);
+        return *this;
+    }
+
+    [[clang::reinitializes]] void reset(int new_value = -1) {
+        int previous_errno = errno;
+
+        if (fd_ != -1) {
+            ::close(fd_);
+        }
+
+        fd_ = new_value;
+        errno = previous_errno;
+    }
+
+    int get() const { return fd_; }
+
+    bool ok() const { return get() >= 0; }
+
+    [[nodiscard]] int release() {
+        int ret = fd_;
+        fd_ = -1;
+        return ret;
+    }
+
+private:
+    int fd_ = -1;
+};
+
+// A wrapper type that can be implicitly constructed from either int or
+// unique_fd. This supports cases where you don't actually own the file
+// descriptor, and can't take ownership, but are temporarily acting as if
+// you're the owner.
+//
+// One example would be a function that needs to also allow
+// STDERR_FILENO, not just a newly-opened fd. Another example would be JNI code
+// that's using a file descriptor that's actually owned by a
+// ParcelFileDescriptor or whatever on the Java side, but where the JNI code
+// would like to enforce this weaker sense of "temporary ownership".
+//
+// If you think of unique_fd as being like std::string in that represents
+// ownership, borrowed_fd is like std::string_view (and int is like const
+// char*).
+struct borrowed_fd {
+    /* implicit */ borrowed_fd(int fd) : fd_(fd) {}                      // NOLINT
+    /* implicit */ borrowed_fd(const unique_fd& ufd) : fd_(ufd.get()) {} // NOLINT
+
+    int get() const { return fd_; }
+
+private:
+    int fd_ = -1;
+};
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/libbinder_rpc_unstable.cpp b/libs/binder/libbinder_rpc_unstable.cpp
index f51cd9b..ddd82e8 100644
--- a/libs/binder/libbinder_rpc_unstable.cpp
+++ b/libs/binder/libbinder_rpc_unstable.cpp
@@ -16,11 +16,10 @@
 
 #include <binder_rpc_unstable.hpp>
 
-#include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <android/binder_libbinder.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcSession.h>
+#include <binder/unique_fd.h>
 #include <cutils/sockets.h>
 #include <linux/vm_sockets.h>
 
@@ -30,7 +29,7 @@
 using android::sp;
 using android::status_t;
 using android::statusToString;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 
 // Opaque handle for RpcServer.
 struct ARpcServer {};
@@ -85,8 +84,8 @@
     }
 
     if (status_t status = server->setupVsockServer(bindCid, port); status != OK) {
-        LOG(ERROR) << "Failed to set up vsock server with port " << port
-                   << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up vsock server with port %u error: %s", port,
+              statusToString(status).c_str());
         return nullptr;
     }
     if (cid != VMADDR_CID_ANY) {
@@ -95,7 +94,7 @@
             const sockaddr_vm* vaddr = reinterpret_cast<const sockaddr_vm*>(addr);
             LOG_ALWAYS_FATAL_IF(vaddr->svm_family != AF_VSOCK, "address is not a vsock");
             if (cid != vaddr->svm_cid) {
-                LOG(ERROR) << "Rejected vsock connection from CID " << vaddr->svm_cid;
+                ALOGE("Rejected vsock connection from CID %u", vaddr->svm_cid);
                 return false;
             }
             return true;
@@ -109,12 +108,12 @@
     auto server = RpcServer::make();
     auto fd = unique_fd(socketFd);
     if (!fd.ok()) {
-        LOG(ERROR) << "Invalid socket fd " << socketFd;
+        ALOGE("Invalid socket fd %d", socketFd);
         return nullptr;
     }
     if (status_t status = server->setupRawSocketServer(std::move(fd)); status != OK) {
-        LOG(ERROR) << "Failed to set up RPC server with fd " << socketFd
-                   << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up RPC server with fd %d error: %s", socketFd,
+              statusToString(status).c_str());
         return nullptr;
     }
     server->setRootObject(AIBinder_toPlatformBinder(service));
@@ -125,13 +124,13 @@
     auto server = RpcServer::make();
     auto fd = unique_fd(bootstrapFd);
     if (!fd.ok()) {
-        LOG(ERROR) << "Invalid bootstrap fd " << bootstrapFd;
+        ALOGE("Invalid bootstrap fd %d", bootstrapFd);
         return nullptr;
     }
     if (status_t status = server->setupUnixDomainSocketBootstrapServer(std::move(fd));
         status != OK) {
-        LOG(ERROR) << "Failed to set up Unix Domain RPC server with bootstrap fd " << bootstrapFd
-                   << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up Unix Domain RPC server with bootstrap fd %d error: %s", bootstrapFd,
+              statusToString(status).c_str());
         return nullptr;
     }
     server->setRootObject(AIBinder_toPlatformBinder(service));
@@ -141,8 +140,8 @@
 ARpcServer* ARpcServer_newInet(AIBinder* service, const char* address, unsigned int port) {
     auto server = RpcServer::make();
     if (status_t status = server->setupInetServer(address, port, nullptr); status != OK) {
-        LOG(ERROR) << "Failed to set up inet RPC server with address " << address << " and port "
-                   << port << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up inet RPC server with address %s and port %u error: %s", address,
+              port, statusToString(status).c_str());
         return nullptr;
     }
     server->setRootObject(AIBinder_toPlatformBinder(service));
@@ -191,8 +190,8 @@
 AIBinder* ARpcSession_setupVsockClient(ARpcSession* handle, unsigned int cid, unsigned int port) {
     auto session = handleToStrongPointer<RpcSession>(handle);
     if (status_t status = session->setupVsockClient(cid, port); status != OK) {
-        LOG(ERROR) << "Failed to set up vsock client with CID " << cid << " and port " << port
-                   << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up vsock client with CID %u and port %u error: %s", cid, port,
+              statusToString(status).c_str());
         return nullptr;
     }
     return AIBinder_fromPlatformBinder(session->getRootObject());
@@ -203,8 +202,8 @@
     pathname = ANDROID_SOCKET_DIR "/" + pathname;
     auto session = handleToStrongPointer<RpcSession>(handle);
     if (status_t status = session->setupUnixDomainClient(pathname.c_str()); status != OK) {
-        LOG(ERROR) << "Failed to set up Unix Domain RPC client with path: " << pathname
-                   << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up Unix Domain RPC client with path: %s error: %s", pathname.c_str(),
+              statusToString(status).c_str());
         return nullptr;
     }
     return AIBinder_fromPlatformBinder(session->getRootObject());
@@ -214,13 +213,13 @@
     auto session = handleToStrongPointer<RpcSession>(handle);
     auto fd = unique_fd(dup(bootstrapFd));
     if (!fd.ok()) {
-        LOG(ERROR) << "Invalid bootstrap fd " << bootstrapFd;
+        ALOGE("Invalid bootstrap fd %d", bootstrapFd);
         return nullptr;
     }
     if (status_t status = session->setupUnixDomainSocketBootstrapClient(std::move(fd));
         status != OK) {
-        LOG(ERROR) << "Failed to set up Unix Domain RPC client with bootstrap fd: " << bootstrapFd
-                   << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up Unix Domain RPC client with bootstrap fd: %d error: %s",
+              bootstrapFd, statusToString(status).c_str());
         return nullptr;
     }
     return AIBinder_fromPlatformBinder(session->getRootObject());
@@ -229,8 +228,8 @@
 AIBinder* ARpcSession_setupInet(ARpcSession* handle, const char* address, unsigned int port) {
     auto session = handleToStrongPointer<RpcSession>(handle);
     if (status_t status = session->setupInetClient(address, port); status != OK) {
-        LOG(ERROR) << "Failed to set up inet RPC client with address " << address << " and port "
-                   << port << " error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up inet RPC client with address %s and port %u error: %s", address,
+              port, statusToString(status).c_str());
         return nullptr;
     }
     return AIBinder_fromPlatformBinder(session->getRootObject());
@@ -241,7 +240,7 @@
     auto session = handleToStrongPointer<RpcSession>(handle);
     auto request = [=] { return unique_fd{requestFd(param)}; };
     if (status_t status = session->setupPreconnectedClient(unique_fd{}, request); status != OK) {
-        LOG(ERROR) << "Failed to set up vsock client. error: " << statusToString(status).c_str();
+        ALOGE("Failed to set up vsock client. error: %s", statusToString(status).c_str());
         return nullptr;
     }
     return AIBinder_fromPlatformBinder(session->getRootObject());
diff --git a/libs/binder/ndk/Android.bp b/libs/binder/ndk/Android.bp
index 58ed418..47b9f58 100644
--- a/libs/binder/ndk/Android.bp
+++ b/libs/binder/ndk/Android.bp
@@ -60,6 +60,7 @@
         "libbinder.cpp",
         "parcel.cpp",
         "parcel_jni.cpp",
+        "persistable_bundle.cpp",
         "process.cpp",
         "stability.cpp",
         "status.cpp",
diff --git a/libs/binder/ndk/ibinder.cpp b/libs/binder/ndk/ibinder.cpp
index f7dd9c9..bf7a0ba 100644
--- a/libs/binder/ndk/ibinder.cpp
+++ b/libs/binder/ndk/ibinder.cpp
@@ -14,14 +14,15 @@
  * limitations under the License.
  */
 
-#include <android-base/logging.h>
 #include <android/binder_ibinder.h>
 #include <android/binder_ibinder_platform.h>
 #include <android/binder_stability.h>
 #include <android/binder_status.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IResultReceiver.h>
+#if __has_include(<private/android_filesystem_config.h>)
 #include <private/android_filesystem_config.h>
+#endif
 
 #include "ibinder_internal.h"
 #include "parcel_internal.h"
@@ -46,8 +47,8 @@
 void clean(const void* /*id*/, void* /*obj*/, void* /*cookie*/){/* do nothing */};
 
 static void attach(const sp<IBinder>& binder) {
-    // can only attach once
-    CHECK_EQ(nullptr, binder->attachObject(kId, kValue, nullptr /*cookie*/, clean));
+    auto alreadyAttached = binder->attachObject(kId, kValue, nullptr /*cookie*/, clean);
+    LOG_ALWAYS_FATAL_IF(alreadyAttached != nullptr, "can only attach once");
 }
 static bool has(const sp<IBinder>& binder) {
     return binder != nullptr && binder->findObject(kId) == kValue;
@@ -63,9 +64,9 @@
 };
 void clean(const void* id, void* obj, void* cookie) {
     // be weary of leaks!
-    // LOG(INFO) << "Deleting an ABpBinder";
+    // ALOGI("Deleting an ABpBinder");
 
-    CHECK(id == kId) << id << " " << obj << " " << cookie;
+    LOG_ALWAYS_FATAL_IF(id != kId, "%p %p %p", id, obj, cookie);
 
     delete static_cast<Value*>(obj);
 };
@@ -119,14 +120,13 @@
     if (mClazz != nullptr && !asABpBinder()) {
         const String16& currentDescriptor = mClazz->getInterfaceDescriptor();
         if (newDescriptor == currentDescriptor) {
-            LOG(ERROR) << __func__ << ": Class descriptors '" << currentDescriptor
-                       << "' match during associateClass, but they are different class objects ("
-                       << clazz << " vs " << mClazz << "). Class descriptor collision?";
+            ALOGE("Class descriptors '%s' match during associateClass, but they are different class"
+                  " objects (%p vs %p). Class descriptor collision?",
+                  String8(currentDescriptor).c_str(), clazz, mClazz);
         } else {
-            LOG(ERROR) << __func__
-                       << ": Class cannot be associated on object which already has a class. "
-                          "Trying to associate to '"
-                       << newDescriptor << "' but already set to '" << currentDescriptor << "'.";
+            ALOGE("%s: Class cannot be associated on object which already has a class. "
+                  "Trying to associate to '%s' but already set to '%s'.",
+                  __func__, String8(newDescriptor).c_str(), String8(currentDescriptor).c_str());
         }
 
         // always a failure because we know mClazz != clazz
@@ -139,13 +139,12 @@
     // more flake-proof. However, the check is not dependent on the lock.
     if (descriptor != newDescriptor && !(asABpBinder() && asABpBinder()->isServiceFuzzing())) {
         if (getBinder()->isBinderAlive()) {
-            LOG(ERROR) << __func__ << ": Expecting binder to have class '" << newDescriptor
-                       << "' but descriptor is actually '" << SanitizeString(descriptor) << "'.";
+            ALOGE("%s: Expecting binder to have class '%s' but descriptor is actually '%s'.",
+                  __func__, String8(newDescriptor).c_str(), SanitizeString(descriptor).c_str());
         } else {
             // b/155793159
-            LOG(ERROR) << __func__ << ": Cannot associate class '" << newDescriptor
-                       << "' to dead binder with cached descriptor '" << SanitizeString(descriptor)
-                       << "'.";
+            ALOGE("%s: Cannot associate class '%s' to dead binder with cached descriptor '%s'.",
+                  __func__, String8(newDescriptor).c_str(), SanitizeString(descriptor).c_str());
         }
         return false;
     }
@@ -162,7 +161,7 @@
 
 ABBinder::ABBinder(const AIBinder_Class* clazz, void* userData)
     : AIBinder(clazz), BBinder(), mUserData(userData) {
-    CHECK(clazz != nullptr);
+    LOG_ALWAYS_FATAL_IF(clazz == nullptr, "clazz == nullptr");
 }
 ABBinder::~ABBinder() {
     getClass()->onDestroy(mUserData);
@@ -182,7 +181,7 @@
     // technically UINT32_MAX would be okay here, but INT32_MAX is expected since this may be
     // null in Java
     if (args.size() > INT32_MAX) {
-        LOG(ERROR) << "ABBinder::dump received too many arguments: " << args.size();
+        ALOGE("ABBinder::dump received too many arguments: %zu", args.size());
         return STATUS_BAD_VALUE;
     }
 
@@ -229,7 +228,11 @@
 
         // Shell commands should only be callable by ADB.
         uid_t uid = AIBinder_getCallingUid();
-        if (uid != AID_ROOT && uid != AID_SHELL) {
+        if (uid != 0 /* root */
+#ifdef AID_SHELL
+            && uid != AID_SHELL
+#endif
+        ) {
             if (resultReceiver != nullptr) {
                 resultReceiver->send(-1);
             }
@@ -257,7 +260,7 @@
 
 ABpBinder::ABpBinder(const ::android::sp<::android::IBinder>& binder)
     : AIBinder(nullptr /*clazz*/), mRemote(binder) {
-    CHECK(binder != nullptr);
+    LOG_ALWAYS_FATAL_IF(binder == nullptr, "binder == nullptr");
 }
 ABpBinder::~ABpBinder() {}
 
@@ -367,27 +370,27 @@
 }
 
 void AIBinder_Class_setOnDump(AIBinder_Class* clazz, AIBinder_onDump onDump) {
-    CHECK(clazz != nullptr) << "setOnDump requires non-null clazz";
+    LOG_ALWAYS_FATAL_IF(clazz == nullptr, "setOnDump requires non-null clazz");
 
     // this is required to be called before instances are instantiated
     clazz->onDump = onDump;
 }
 
 void AIBinder_Class_disableInterfaceTokenHeader(AIBinder_Class* clazz) {
-    CHECK(clazz != nullptr) << "disableInterfaceTokenHeader requires non-null clazz";
+    LOG_ALWAYS_FATAL_IF(clazz == nullptr, "disableInterfaceTokenHeader requires non-null clazz");
 
     clazz->writeHeader = false;
 }
 
 void AIBinder_Class_setHandleShellCommand(AIBinder_Class* clazz,
                                           AIBinder_handleShellCommand handleShellCommand) {
-    CHECK(clazz != nullptr) << "setHandleShellCommand requires non-null clazz";
+    LOG_ALWAYS_FATAL_IF(clazz == nullptr, "setHandleShellCommand requires non-null clazz");
 
     clazz->handleShellCommand = handleShellCommand;
 }
 
 const char* AIBinder_Class_getDescriptor(const AIBinder_Class* clazz) {
-    CHECK(clazz != nullptr) << "getDescriptor requires non-null clazz";
+    LOG_ALWAYS_FATAL_IF(clazz == nullptr, "getDescriptor requires non-null clazz");
 
     return clazz->getInterfaceDescriptorUtf8();
 }
@@ -399,8 +402,8 @@
 }
 
 void AIBinder_DeathRecipient::TransferDeathRecipient::binderDied(const wp<IBinder>& who) {
-    CHECK(who == mWho) << who.unsafe_get() << "(" << who.get_refs() << ") vs " << mWho.unsafe_get()
-                       << " (" << mWho.get_refs() << ")";
+    LOG_ALWAYS_FATAL_IF(who != mWho, "%p (%p) vs %p (%p)", who.unsafe_get(), who.get_refs(),
+                        mWho.unsafe_get(), mWho.get_refs());
 
     mOnDied(mCookie);
 
@@ -411,7 +414,7 @@
     if (recipient != nullptr && strongWho != nullptr) {
         status_t result = recipient->unlinkToDeath(strongWho, mCookie);
         if (result != ::android::DEAD_OBJECT) {
-            LOG(WARNING) << "Unlinking to dead binder resulted in: " << result;
+            ALOGW("Unlinking to dead binder resulted in: %d", result);
         }
     }
 
@@ -420,7 +423,7 @@
 
 AIBinder_DeathRecipient::AIBinder_DeathRecipient(AIBinder_DeathRecipient_onBinderDied onDied)
     : mOnDied(onDied), mOnUnlinked(nullptr) {
-    CHECK(onDied != nullptr);
+    LOG_ALWAYS_FATAL_IF(onDied == nullptr, "onDied == nullptr");
 }
 
 void AIBinder_DeathRecipient::pruneDeadTransferEntriesLocked() {
@@ -432,7 +435,7 @@
 }
 
 binder_status_t AIBinder_DeathRecipient::linkToDeath(const sp<IBinder>& binder, void* cookie) {
-    CHECK(binder != nullptr);
+    LOG_ALWAYS_FATAL_IF(binder == nullptr, "binder == nullptr");
 
     std::lock_guard<std::mutex> l(mDeathRecipientsMutex);
 
@@ -453,7 +456,7 @@
 }
 
 binder_status_t AIBinder_DeathRecipient::unlinkToDeath(const sp<IBinder>& binder, void* cookie) {
-    CHECK(binder != nullptr);
+    LOG_ALWAYS_FATAL_IF(binder == nullptr, "binder == nullptr");
 
     std::lock_guard<std::mutex> l(mDeathRecipientsMutex);
 
@@ -465,9 +468,8 @@
 
             status_t status = binder->unlinkToDeath(recipient, cookie, 0 /*flags*/);
             if (status != ::android::OK) {
-                LOG(ERROR) << __func__
-                           << ": removed reference to death recipient but unlink failed: "
-                           << statusToString(status);
+                ALOGE("%s: removed reference to death recipient but unlink failed: %s", __func__,
+                      statusToString(status).c_str());
             }
             return PruneStatusT(status);
         }
@@ -484,7 +486,7 @@
 
 AIBinder* AIBinder_new(const AIBinder_Class* clazz, void* args) {
     if (clazz == nullptr) {
-        LOG(ERROR) << __func__ << ": Must provide class to construct local binder.";
+        ALOGE("%s: Must provide class to construct local binder.", __func__);
         return nullptr;
     }
 
@@ -548,8 +550,7 @@
 binder_status_t AIBinder_linkToDeath(AIBinder* binder, AIBinder_DeathRecipient* recipient,
                                      void* cookie) {
     if (binder == nullptr || recipient == nullptr) {
-        LOG(ERROR) << __func__ << ": Must provide binder (" << binder << ") and recipient ("
-                   << recipient << ")";
+        ALOGE("%s: Must provide binder (%p) and recipient (%p)", __func__, binder, recipient);
         return STATUS_UNEXPECTED_NULL;
     }
 
@@ -560,8 +561,7 @@
 binder_status_t AIBinder_unlinkToDeath(AIBinder* binder, AIBinder_DeathRecipient* recipient,
                                        void* cookie) {
     if (binder == nullptr || recipient == nullptr) {
-        LOG(ERROR) << __func__ << ": Must provide binder (" << binder << ") and recipient ("
-                   << recipient << ")";
+        ALOGE("%s: Must provide binder (%p) and recipient (%p)", __func__, binder, recipient);
         return STATUS_UNEXPECTED_NULL;
     }
 
@@ -590,7 +590,7 @@
 }
 void AIBinder_decStrong(AIBinder* binder) {
     if (binder == nullptr) {
-        LOG(ERROR) << __func__ << ": on null binder";
+        ALOGE("%s: on null binder", __func__);
         return;
     }
 
@@ -598,7 +598,7 @@
 }
 int32_t AIBinder_debugGetRefCount(AIBinder* binder) {
     if (binder == nullptr) {
-        LOG(ERROR) << __func__ << ": on null binder";
+        ALOGE("%s: on null binder", __func__);
         return -1;
     }
 
@@ -636,15 +636,14 @@
 
 binder_status_t AIBinder_prepareTransaction(AIBinder* binder, AParcel** in) {
     if (binder == nullptr || in == nullptr) {
-        LOG(ERROR) << __func__ << ": requires non-null parameters binder (" << binder
-                   << ") and in (" << in << ").";
+        ALOGE("%s: requires non-null parameters binder (%p) and in (%p).", __func__, binder, in);
         return STATUS_UNEXPECTED_NULL;
     }
     const AIBinder_Class* clazz = binder->getClass();
     if (clazz == nullptr) {
-        LOG(ERROR) << __func__
-                   << ": Class must be defined for a remote binder transaction. See "
-                      "AIBinder_associateClass.";
+        ALOGE("%s: Class must be defined for a remote binder transaction. See "
+              "AIBinder_associateClass.",
+              __func__);
         return STATUS_INVALID_OPERATION;
     }
 
@@ -677,7 +676,7 @@
 binder_status_t AIBinder_transact(AIBinder* binder, transaction_code_t code, AParcel** in,
                                   AParcel** out, binder_flags_t flags) {
     if (in == nullptr) {
-        LOG(ERROR) << __func__ << ": requires non-null in parameter";
+        ALOGE("%s: requires non-null in parameter", __func__);
         return STATUS_UNEXPECTED_NULL;
     }
 
@@ -687,27 +686,26 @@
     AutoParcelDestroyer forIn(in, DestroyParcel);
 
     if (!isUserCommand(code)) {
-        LOG(ERROR) << __func__
-                   << ": Only user-defined transactions can be made from the NDK, but requested: "
-                   << code;
+        ALOGE("%s: Only user-defined transactions can be made from the NDK, but requested: %d",
+              __func__, code);
         return STATUS_UNKNOWN_TRANSACTION;
     }
 
     constexpr binder_flags_t kAllFlags = FLAG_PRIVATE_VENDOR | FLAG_ONEWAY | FLAG_CLEAR_BUF;
     if ((flags & ~kAllFlags) != 0) {
-        LOG(ERROR) << __func__ << ": Unrecognized flags sent: " << flags;
+        ALOGE("%s: Unrecognized flags sent: %d", __func__, flags);
         return STATUS_BAD_VALUE;
     }
 
     if (binder == nullptr || *in == nullptr || out == nullptr) {
-        LOG(ERROR) << __func__ << ": requires non-null parameters binder (" << binder << "), in ("
-                   << in << "), and out (" << out << ").";
+        ALOGE("%s: requires non-null parameters binder (%p), in (%p), and out (%p).", __func__,
+              binder, in, out);
         return STATUS_UNEXPECTED_NULL;
     }
 
     if ((*in)->getBinder() != binder) {
-        LOG(ERROR) << __func__ << ": parcel is associated with binder object " << binder
-                   << " but called with " << (*in)->getBinder();
+        ALOGE("%s: parcel is associated with binder object %p but called with %p", __func__, binder,
+              (*in)->getBinder());
         return STATUS_BAD_VALUE;
     }
 
@@ -727,7 +725,7 @@
 AIBinder_DeathRecipient* AIBinder_DeathRecipient_new(
         AIBinder_DeathRecipient_onBinderDied onBinderDied) {
     if (onBinderDied == nullptr) {
-        LOG(ERROR) << __func__ << ": requires non-null onBinderDied parameter.";
+        ALOGE("%s: requires non-null onBinderDied parameter.", __func__);
         return nullptr;
     }
     auto ret = new AIBinder_DeathRecipient(onBinderDied);
@@ -793,9 +791,8 @@
 
 void AIBinder_setRequestingSid(AIBinder* binder, bool requestingSid) {
     ABBinder* localBinder = binder->asABBinder();
-    if (localBinder == nullptr) {
-        LOG(FATAL) << "AIBinder_setRequestingSid must be called on a local binder";
-    }
+    LOG_ALWAYS_FATAL_IF(localBinder == nullptr,
+                        "AIBinder_setRequestingSid must be called on a local binder");
 
     localBinder->setRequestingSid(requestingSid);
 }
@@ -810,9 +807,8 @@
 
 void AIBinder_setInheritRt(AIBinder* binder, bool inheritRt) {
     ABBinder* localBinder = binder->asABBinder();
-    if (localBinder == nullptr) {
-        LOG(FATAL) << "AIBinder_setInheritRt must be called on a local binder";
-    }
+    LOG_ALWAYS_FATAL_IF(localBinder == nullptr,
+                        "AIBinder_setInheritRt must be called on a local binder");
 
     localBinder->setInheritRt(inheritRt);
 }
diff --git a/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
new file mode 100644
index 0000000..f178027
--- /dev/null
+++ b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
@@ -0,0 +1,497 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include <android/binder_parcel.h>
+#include <android/persistable_bundle.h>
+#include <sys/cdefs.h>
+
+#include <set>
+#include <sstream>
+
+namespace aidl::android::os {
+
+/**
+ * Wrapper class that enables interop with AIDL NDK generation
+ * Takes ownership of the APersistableBundle* given to it in reset() and will automatically
+ * destroy it in the destructor, similar to a smart pointer container
+ */
+class PersistableBundle {
+   public:
+    PersistableBundle() noexcept : mPBundle(APersistableBundle_new()) {}
+    // takes ownership of the APersistableBundle*
+    PersistableBundle(APersistableBundle* _Nonnull bundle) noexcept : mPBundle(bundle) {}
+    // takes ownership of the APersistableBundle*
+    PersistableBundle(PersistableBundle&& other) noexcept : mPBundle(other.release()) {}
+    // duplicates, does not take ownership of the APersistableBundle*
+    PersistableBundle(const PersistableBundle& other) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            mPBundle = APersistableBundle_dup(other.mPBundle);
+        }
+    }
+    // duplicates, does not take ownership of the APersistableBundle*
+    PersistableBundle& operator=(const PersistableBundle& other) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            mPBundle = APersistableBundle_dup(other.mPBundle);
+        }
+        return *this;
+    }
+
+    ~PersistableBundle() { reset(); }
+
+    binder_status_t readFromParcel(const AParcel* _Nonnull parcel) {
+        reset();
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_readFromParcel(parcel, &mPBundle);
+        } else {
+            return STATUS_FAILED_TRANSACTION;
+        }
+    }
+
+    binder_status_t writeToParcel(AParcel* _Nonnull parcel) const {
+        if (!mPBundle) {
+            return STATUS_BAD_VALUE;
+        }
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_writeToParcel(mPBundle, parcel);
+        } else {
+            return STATUS_FAILED_TRANSACTION;
+        }
+    }
+
+    /**
+     * Destroys any currently owned APersistableBundle* and takes ownership of the given
+     * APersistableBundle*
+     *
+     * @param pBundle The APersistableBundle to take ownership of
+     */
+    void reset(APersistableBundle* _Nullable pBundle = nullptr) noexcept {
+        if (mPBundle) {
+            if (__builtin_available(android __ANDROID_API_V__, *)) {
+                APersistableBundle_delete(mPBundle);
+            }
+            mPBundle = nullptr;
+        }
+        mPBundle = pBundle;
+    }
+
+    /**
+     * Check the actual contents of the bundle for equality. This is typically
+     * what should be used to check for equality.
+     */
+    bool deepEquals(const PersistableBundle& rhs) const {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_isEqual(get(), rhs.get());
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * NOTE: This does NOT check the contents of the PersistableBundle. This is
+     * implemented for ordering. Use deepEquals() to check for equality between
+     * two different PersistableBundle objects.
+     */
+    inline bool operator==(const PersistableBundle& rhs) const { return get() == rhs.get(); }
+    inline bool operator!=(const PersistableBundle& rhs) const { return get() != rhs.get(); }
+
+    inline bool operator<(const PersistableBundle& rhs) const { return get() < rhs.get(); }
+    inline bool operator>(const PersistableBundle& rhs) const { return get() > rhs.get(); }
+    inline bool operator>=(const PersistableBundle& rhs) const { return !(*this < rhs); }
+    inline bool operator<=(const PersistableBundle& rhs) const { return !(*this > rhs); }
+
+    PersistableBundle& operator=(PersistableBundle&& other) noexcept {
+        reset(other.release());
+        return *this;
+    }
+
+    /**
+     * Stops managing any contained APersistableBundle*, returning it to the caller. Ownership
+     * is released.
+     * @return APersistableBundle* or null if this was empty
+     */
+    [[nodiscard]] APersistableBundle* _Nullable release() noexcept {
+        APersistableBundle* _Nullable ret = mPBundle;
+        mPBundle = nullptr;
+        return ret;
+    }
+
+    inline std::string toString() const {
+        if (!mPBundle) {
+            return "<PersistableBundle: null>";
+        } else if (__builtin_available(android __ANDROID_API_V__, *)) {
+            std::ostringstream os;
+            os << "<PersistableBundle: ";
+            os << "size: " << std::to_string(APersistableBundle_size(mPBundle));
+            os << " >";
+            return os.str();
+        }
+        return "<PersistableBundle (unknown)>";
+    }
+
+    int32_t size() const {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_size(mPBundle);
+        } else {
+            return 0;
+        }
+    }
+
+    int32_t erase(const std::string& key) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_erase(mPBundle, key.c_str());
+        } else {
+            return 0;
+        }
+    }
+
+    void putBoolean(const std::string& key, bool val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            APersistableBundle_putBoolean(mPBundle, key.c_str(), val);
+        }
+    }
+
+    void putInt(const std::string& key, int32_t val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            APersistableBundle_putInt(mPBundle, key.c_str(), val);
+        }
+    }
+
+    void putLong(const std::string& key, int64_t val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            APersistableBundle_putLong(mPBundle, key.c_str(), val);
+        }
+    }
+
+    void putDouble(const std::string& key, double val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            APersistableBundle_putDouble(mPBundle, key.c_str(), val);
+        }
+    }
+
+    void putString(const std::string& key, const std::string& val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            APersistableBundle_putString(mPBundle, key.c_str(), val.c_str());
+        }
+    }
+
+    void putBooleanVector(const std::string& key, const std::vector<bool>& vec) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            // std::vector<bool> has no ::data().
+            int32_t num = vec.size();
+            if (num > 0) {
+                bool* newVec = (bool*)malloc(num * sizeof(bool));
+                if (newVec) {
+                    for (int32_t i = 0; i < num; i++) {
+                        newVec[i] = vec[i];
+                    }
+                    APersistableBundle_putBooleanVector(mPBundle, key.c_str(), newVec, num);
+                    free(newVec);
+                }
+            }
+        }
+    }
+
+    void putIntVector(const std::string& key, const std::vector<int32_t>& vec) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            int32_t num = vec.size();
+            if (num > 0) {
+                APersistableBundle_putIntVector(mPBundle, key.c_str(), vec.data(), num);
+            }
+        }
+    }
+    void putLongVector(const std::string& key, const std::vector<int64_t>& vec) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            int32_t num = vec.size();
+            if (num > 0) {
+                APersistableBundle_putLongVector(mPBundle, key.c_str(), vec.data(), num);
+            }
+        }
+    }
+    void putDoubleVector(const std::string& key, const std::vector<double>& vec) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            int32_t num = vec.size();
+            if (num > 0) {
+                APersistableBundle_putDoubleVector(mPBundle, key.c_str(), vec.data(), num);
+            }
+        }
+    }
+    void putStringVector(const std::string& key, const std::vector<std::string>& vec) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            int32_t num = vec.size();
+            if (num > 0) {
+                char** inVec = (char**)malloc(num * sizeof(char*));
+                if (inVec) {
+                    for (int32_t i = 0; i < num; i++) {
+                        inVec[i] = strdup(vec[i].c_str());
+                    }
+                    APersistableBundle_putStringVector(mPBundle, key.c_str(), inVec, num);
+                    free(inVec);
+                }
+            }
+        }
+    }
+    void putPersistableBundle(const std::string& key, const PersistableBundle& pBundle) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            APersistableBundle_putPersistableBundle(mPBundle, key.c_str(), pBundle.mPBundle);
+        }
+    }
+
+    bool getBoolean(const std::string& key, bool* _Nonnull val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_getBoolean(mPBundle, key.c_str(), val);
+        } else {
+            return false;
+        }
+    }
+
+    bool getInt(const std::string& key, int32_t* _Nonnull val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_getInt(mPBundle, key.c_str(), val);
+        } else {
+            return false;
+        }
+    }
+
+    bool getLong(const std::string& key, int64_t* _Nonnull val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_getLong(mPBundle, key.c_str(), val);
+        } else {
+            return false;
+        }
+    }
+
+    bool getDouble(const std::string& key, double* _Nonnull val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return APersistableBundle_getDouble(mPBundle, key.c_str(), val);
+        } else {
+            return false;
+        }
+    }
+
+    static char* _Nullable stringAllocator(int32_t bufferSizeBytes, void* _Nullable) {
+        return (char*)malloc(bufferSizeBytes);
+    }
+
+    bool getString(const std::string& key, std::string* _Nonnull val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            char* outString = nullptr;
+            bool ret = APersistableBundle_getString(mPBundle, key.c_str(), &outString,
+                                                    &stringAllocator, nullptr);
+            if (ret && outString) {
+                *val = std::string(outString);
+            }
+            return ret;
+        } else {
+            return false;
+        }
+    }
+
+    template <typename T>
+    bool getVecInternal(int32_t (*_Nonnull getVec)(const APersistableBundle* _Nonnull,
+                                                   const char* _Nonnull, T* _Nullable, int32_t),
+                        const APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                        std::vector<T>* _Nonnull vec) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            int32_t bytes = 0;
+            // call first with nullptr to get required size in bytes
+            bytes = getVec(pBundle, key, nullptr, 0);
+            if (bytes > 0) {
+                T* newVec = (T*)malloc(bytes);
+                if (newVec) {
+                    bytes = getVec(pBundle, key, newVec, bytes);
+                    int32_t elements = bytes / sizeof(T);
+                    vec->clear();
+                    for (int32_t i = 0; i < elements; i++) {
+                        vec->push_back(newVec[i]);
+                    }
+                    free(newVec);
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    bool getBooleanVector(const std::string& key, std::vector<bool>* _Nonnull vec) {
+        return getVecInternal<bool>(&APersistableBundle_getBooleanVector, mPBundle, key.c_str(),
+                                    vec);
+    }
+    bool getIntVector(const std::string& key, std::vector<int32_t>* _Nonnull vec) {
+        return getVecInternal<int32_t>(&APersistableBundle_getIntVector, mPBundle, key.c_str(),
+                                       vec);
+    }
+    bool getLongVector(const std::string& key, std::vector<int64_t>* _Nonnull vec) {
+        return getVecInternal<int64_t>(&APersistableBundle_getLongVector, mPBundle, key.c_str(),
+                                       vec);
+    }
+    bool getDoubleVector(const std::string& key, std::vector<double>* _Nonnull vec) {
+        return getVecInternal<double>(&APersistableBundle_getDoubleVector, mPBundle, key.c_str(),
+                                      vec);
+    }
+
+    // Takes ownership of and frees the char** and its elements.
+    // Creates a new set or vector based on the array of char*.
+    template <typename T>
+    T moveStringsInternal(char* _Nullable* _Nonnull strings, int32_t bufferSizeBytes) {
+        if (strings && bufferSizeBytes > 0) {
+            int32_t num = bufferSizeBytes / sizeof(char*);
+            T ret;
+            for (int32_t i = 0; i < num; i++) {
+                ret.insert(ret.end(), std::string(strings[i]));
+                free(strings[i]);
+            }
+            free(strings);
+            return ret;
+        }
+        return T();
+    }
+
+    bool getStringVector(const std::string& key, std::vector<std::string>* _Nonnull vec) {
+        int32_t bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), nullptr, 0,
+                                                           &stringAllocator, nullptr);
+        if (bytes > 0) {
+            char** strings = (char**)malloc(bytes);
+            if (strings) {
+                bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), strings, bytes,
+                                                           &stringAllocator, nullptr);
+                *vec = moveStringsInternal<std::vector<std::string>>(strings, bytes);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    bool getPersistableBundle(const std::string& key, PersistableBundle* _Nonnull val) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            APersistableBundle* bundle = nullptr;
+            bool ret = APersistableBundle_getPersistableBundle(mPBundle, key.c_str(), &bundle);
+            if (ret) {
+                *val = PersistableBundle(bundle);
+            }
+            return ret;
+        } else {
+            return false;
+        }
+    }
+
+    std::set<std::string> getKeys(
+            int32_t (*_Nonnull getTypedKeys)(const APersistableBundle* _Nonnull pBundle,
+                                             char* _Nullable* _Nullable outKeys,
+                                             int32_t bufferSizeBytes,
+                                             APersistableBundle_stringAllocator stringAllocator,
+                                             void* _Nullable),
+            const APersistableBundle* _Nonnull pBundle) {
+        // call first with nullptr to get required size in bytes
+        int32_t bytes = getTypedKeys(pBundle, nullptr, 0, &stringAllocator, nullptr);
+        if (bytes > 0) {
+            char** keys = (char**)malloc(bytes);
+            if (keys) {
+                bytes = getTypedKeys(pBundle, keys, bytes, &stringAllocator, nullptr);
+                return moveStringsInternal<std::set<std::string>>(keys, bytes);
+            }
+        }
+        return {};
+    }
+
+    std::set<std::string> getBooleanKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getBooleanKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getIntKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getIntKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getLongKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getLongKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getDoubleKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getDoubleKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getStringKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getStringKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getBooleanVectorKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getBooleanVectorKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getIntVectorKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getIntVectorKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getLongVectorKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getLongVectorKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getDoubleVectorKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getDoubleVectorKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getStringVectorKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getStringVectorKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getPersistableBundleKeys() {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getKeys(&APersistableBundle_getPersistableBundleKeys, mPBundle);
+        } else {
+            return {};
+        }
+    }
+    std::set<std::string> getMonKeys() {
+        // :P
+        return {"c(o,o)b", "c(o,o)b"};
+    }
+
+   private:
+    inline APersistableBundle* _Nullable get() const { return mPBundle; }
+    APersistableBundle* _Nullable mPBundle = nullptr;
+};
+
+}  // namespace aidl::android::os
diff --git a/libs/binder/ndk/include_ndk/android/persistable_bundle.h b/libs/binder/ndk/include_ndk/android/persistable_bundle.h
new file mode 100644
index 0000000..eff8104
--- /dev/null
+++ b/libs/binder/ndk/include_ndk/android/persistable_bundle.h
@@ -0,0 +1,905 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <android/binder_parcel.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+/*
+ * A mapping from string keys to values of various types.
+ * See frameworks/base/core/java/android/os/PersistableBundle.java
+ * for the Java type than can be used in SDK APIs.
+ * APersistableBundle exists to be used in AIDL interfaces and seamlessly
+ * interact with framework services.
+ * frameworks/native/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
+ * contains the AIDL type used in the ndk backend of AIDL interfaces.
+ */
+struct APersistableBundle;
+typedef struct APersistableBundle APersistableBundle;
+
+/**
+ * This is a user supplied allocator that allocates a buffer for the
+ * APersistableBundle APIs to fill in with a string.
+ *
+ * \param the required size in bytes for the allocated buffer
+ * \param  void* _Nullable context if needed by the callback
+ *
+ * \return allocated buffer of sizeBytes. Null if allocation failed.
+ */
+typedef char* _Nullable (*_Nonnull APersistableBundle_stringAllocator)(int32_t sizeBytes,
+                                                                       void* _Nullable context);
+
+/**
+ * Create a new APersistableBundle.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \return Pointer to a new APersistableBundle
+ */
+APersistableBundle* _Nullable APersistableBundle_new() __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Create a new APersistableBundle based off an existing APersistableBundle.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to duplicate
+ *
+ * \return Pointer to a new APersistableBundle
+ */
+APersistableBundle* _Nullable APersistableBundle_dup(const APersistableBundle* _Nonnull pBundle)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Delete an APersistableBundle. This must always be called when finished using
+ * the object.
+ *
+ * \param bundle to delete
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_delete(APersistableBundle* _Nonnull pBundle)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Check for equality of APersistableBundles.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param lhs bundle to compare agains the other param
+ * \param rhs bundle to compare agains the other param
+ *
+ * \return true when equal, false when not
+ */
+bool APersistableBundle_isEqual(const APersistableBundle* _Nonnull lhs,
+                                const APersistableBundle* _Nonnull rhs)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Read an APersistableBundle from an AParcel.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param parcel to read from
+ * \param outPBundle bundle to write to
+ *
+ * \return STATUS_OK on success
+ *         STATUS_BAD_VALUE if the parcel or outBuffer is null, or if there's an
+ *                          issue deserializing (eg, corrupted parcel)
+ *         STATUS_BAD_TYPE if the parcel's current data position is not that of
+ *                         an APersistableBundle type
+ *         STATUS_NO_MEMORY if an allocation fails
+ */
+binder_status_t APersistableBundle_readFromParcel(
+        const AParcel* _Nonnull parcel, APersistableBundle* _Nullable* _Nonnull outPBundle)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Write an APersistableBundle to an AParcel.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param pBundle bundle to write to the parcel
+ * \param parcel to write to
+ *
+ * \return STATUS_OK on success.
+ *         STATUS_BAD_VALUE if either pBundle or parcel is null, or if the
+ *         APersistableBundle*
+ *                          fails to serialize (eg, internally corrupted)
+ *         STATUS_NO_MEMORY if the parcel runs out of space to store the pBundle & is
+ *                          unable to allocate more
+ *         STATUS_FDS_NOT_ALLOWED if the parcel does not allow storing FDs
+ */
+binder_status_t APersistableBundle_writeToParcel(const APersistableBundle* _Nonnull pBundle,
+                                                 AParcel* _Nonnull parcel)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get the size of an APersistableBundle. This is the number of mappings in the
+ * object.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to get the size of (number of mappings)
+ *
+ * \return number of mappings in the object
+ */
+int32_t APersistableBundle_size(APersistableBundle* _Nonnull pBundle)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Erase any entries added with the provided key.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping to erase
+ *
+ * \return number of entries erased. Either 0 or 1.
+ */
+int32_t APersistableBundle_erase(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put a boolean associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putBoolean(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                                   bool val) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put an int32_t associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putInt(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                               int32_t val) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put an int64_t associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putLong(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                                int64_t val) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put a double associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putDouble(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                                  double val) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put a string associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putString(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                                  const char* _Nonnull val) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put a boolean vector associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ * \param size in number of elements in the vector
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putBooleanVector(APersistableBundle* _Nonnull pBundle,
+                                         const char* _Nonnull key, const bool* _Nonnull vec,
+                                         int32_t num) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put an int32_t vector associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ * \param size in number of elements in the vector
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putIntVector(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                                     const int32_t* _Nonnull vec, int32_t num)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put an int64_t vector associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ * \param size in number of elements in the vector
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putLongVector(APersistableBundle* _Nonnull pBundle,
+                                      const char* _Nonnull key, const int64_t* _Nonnull vec,
+                                      int32_t num) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put a double vector associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ * \param size in number of elements in the vector
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putDoubleVector(APersistableBundle* _Nonnull pBundle,
+                                        const char* _Nonnull key, const double* _Nonnull vec,
+                                        int32_t num) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put a string vector associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ * \param size in number of elements in the vector
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putStringVector(APersistableBundle* _Nonnull pBundle,
+                                        const char* _Nonnull key,
+                                        const char* _Nullable const* _Nullable vec, int32_t num)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Put an APersistableBundle associated with the provided key.
+ * New values with the same key will overwrite existing values.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param value to put for the mapping
+ *
+ * Available since API level __ANDROID_API_V__.
+ */
+void APersistableBundle_putPersistableBundle(APersistableBundle* _Nonnull pBundle,
+                                             const char* _Nonnull key,
+                                             const APersistableBundle* _Nonnull val)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get a boolean associated with the provided key.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to write the value to
+ *
+ * \return true if a value exists for the provided key
+ */
+bool APersistableBundle_getBoolean(const APersistableBundle* _Nonnull pBundle,
+                                   const char* _Nonnull key, bool* _Nonnull val)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get an int32_t associated with the provided key.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to write the value to
+ *
+ * \return true if a value exists for the provided key
+ */
+bool APersistableBundle_getInt(const APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
+                               int32_t* _Nonnull val) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get an int64_t associated with the provided key.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to write the value to
+ *
+ * \return true if a value exists for the provided key
+ */
+bool APersistableBundle_getLong(const APersistableBundle* _Nonnull pBundle,
+                                const char* _Nonnull key, int64_t* _Nonnull val)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get a double associated with the provided key.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to write the value to
+ *
+ * \return true if a value exists for the provided key
+ */
+bool APersistableBundle_getDouble(const APersistableBundle* _Nonnull pBundle,
+                                  const char* _Nonnull key, double* _Nonnull val)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get a string associated with the provided key.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to write the value to
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of string associated with the provided key on success
+ *         0 if no string exists for the provided key
+ *         -1 if the provided allocator fails and returns false
+ */
+int32_t APersistableBundle_getString(const APersistableBundle* _Nonnull pBundle,
+                                     const char* _Nonnull key, char* _Nullable* _Nonnull val,
+                                     APersistableBundle_stringAllocator stringAllocator,
+                                     void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get a boolean vector associated with the provided key and place it in the
+ * provided pre-allocated buffer from the user.
+ *
+ * This function returns the size in bytes of stored vector.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ *
+ * \return size of the stored vector in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ */
+int32_t APersistableBundle_getBooleanVector(const APersistableBundle* _Nonnull pBundle,
+                                            const char* _Nonnull key, bool* _Nullable buffer,
+                                            int32_t bufferSizeBytes)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get an int32_t vector associated with the provided key and place it in the
+ * provided pre-allocated buffer from the user.
+ *
+ * This function returns the size in bytes of stored vector.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ *
+ * \return size of the stored vector in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ */
+int32_t APersistableBundle_getIntVector(const APersistableBundle* _Nonnull pBundle,
+                                        const char* _Nonnull key, int32_t* _Nullable buffer,
+                                        int32_t bufferSizeBytes) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get an int64_t vector associated with the provided key and place it in the
+ * provided pre-allocated buffer from the user.
+ *
+ * This function returns the size in bytes of stored vector.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ *
+ * \return size of the stored vector in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ */
+int32_t APersistableBundle_getLongVector(const APersistableBundle* _Nonnull pBundle,
+                                         const char* _Nonnull key, int64_t* _Nullable buffer,
+                                         int32_t bufferSizeBytes)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get a double vector associated with the provided key and place it in the
+ * provided pre-allocated buffer from the user.
+ *
+ * This function returns the size in bytes of stored vector.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ *
+ * \return size of the stored vector in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ */
+int32_t APersistableBundle_getDoubleVector(const APersistableBundle* _Nonnull pBundle,
+                                           const char* _Nonnull key, double* _Nullable buffer,
+                                           int32_t bufferSizeBytes)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get a string vector associated with the provided key and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes of stored vector.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the stored vector in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getStringVector(const APersistableBundle* _Nonnull pBundle,
+                                           const char* _Nonnull key,
+                                           char* _Nullable* _Nullable buffer,
+                                           int32_t bufferSizeBytes,
+                                           APersistableBundle_stringAllocator stringAllocator,
+                                           void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get an APersistableBundle* associated with the provided key.
+ *
+ * Available since API level __ANDROID_API_V__.
+ *
+ * \param bundle to operate on
+ * \param key for the mapping
+ * \param nonnull pointer to an APersistableBundle pointer to write to point to
+ * a new copy of the stored APersistableBundle. The caller takes ownership of
+ * the new APersistableBundle and must be deleted with
+ * APersistableBundle_delete.
+ *
+ * \return true if a value exists for the provided key
+ */
+bool APersistableBundle_getPersistableBundle(const APersistableBundle* _Nonnull pBundle,
+                                             const char* _Nonnull key,
+                                             APersistableBundle* _Nullable* _Nonnull outBundle)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getBooleanKeys(const APersistableBundle* _Nonnull pBundle,
+                                          char* _Nullable* _Nullable outKeys,
+                                          int32_t bufferSizeBytes,
+                                          APersistableBundle_stringAllocator stringAllocator,
+                                          void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getIntKeys(const APersistableBundle* _Nonnull pBundle,
+                                      char* _Nullable* _Nullable outKeys, int32_t bufferSizeBytes,
+                                      APersistableBundle_stringAllocator stringAllocator,
+                                      void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getLongKeys(const APersistableBundle* _Nonnull pBundle,
+                                       char* _Nullable* _Nullable outKeys, int32_t bufferSizeBytes,
+                                       APersistableBundle_stringAllocator stringAllocator,
+                                       void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getDoubleKeys(const APersistableBundle* _Nonnull pBundle,
+                                         char* _Nullable* _Nullable outKeys,
+                                         int32_t bufferSizeBytes,
+                                         APersistableBundle_stringAllocator stringAllocator,
+                                         void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getStringKeys(const APersistableBundle* _Nonnull pBundle,
+                                         char* _Nullable* _Nullable outKeys,
+                                         int32_t bufferSizeBytes,
+                                         APersistableBundle_stringAllocator stringAllocator,
+                                         void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getBooleanVectorKeys(const APersistableBundle* _Nonnull pBundle,
+                                                char* _Nullable* _Nullable outKeys,
+                                                int32_t bufferSizeBytes,
+                                                APersistableBundle_stringAllocator stringAllocator,
+                                                void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getIntVectorKeys(const APersistableBundle* _Nonnull pBundle,
+                                            char* _Nullable* _Nullable outKeys,
+                                            int32_t bufferSizeBytes,
+                                            APersistableBundle_stringAllocator stringAllocator,
+                                            void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getLongVectorKeys(const APersistableBundle* _Nonnull pBundle,
+                                             char* _Nullable* _Nullable outKeys,
+                                             int32_t bufferSizeBytes,
+                                             APersistableBundle_stringAllocator stringAllocator,
+                                             void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getDoubleVectorKeys(const APersistableBundle* _Nonnull pBundle,
+                                               char* _Nullable* _Nullable outKeys,
+                                               int32_t bufferSizeBytes,
+                                               APersistableBundle_stringAllocator stringAllocator,
+                                               void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getStringVectorKeys(const APersistableBundle* _Nonnull pBundle,
+                                               char* _Nullable* _Nullable outKeys,
+                                               int32_t bufferSizeBytes,
+                                               APersistableBundle_stringAllocator stringAllocator,
+                                               void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
+
+/**
+ * Get all of the keys associated with this specific type and place it in the
+ * provided pre-allocated buffer from the user. The user must provide an
+ * APersistableBundle_stringAllocator for the individual strings to be
+ * allocated.
+ *
+ * This function returns the size in bytes required to fit the fill list of keys.
+ * The supplied buffer will be filled in based on the smaller of the suplied
+ * bufferSizeBytes or the actual size of the stored data.
+ * If the buffer is null or if the supplied bufferSizeBytes is smaller than the
+ * actual stored data, then not all of the stored data will be returned.
+ *
+ * Users can call this function with null buffer and 0 bufferSizeBytes to get
+ * the required size of the buffer to use on a subsequent call.
+ *
+ * \param bundle to operate on
+ * \param nonnull pointer to a pre-allocated buffer to write the values to
+ * \param size of the pre-allocated buffer
+ * \param function pointer to the string dup allocator
+ *
+ * \return size of the buffer of keys in bytes. This is the required size of the
+ * pre-allocated user supplied buffer if all of the stored contents are desired.
+ *         0 if no string vector exists for the provided key
+ *         -1 if the user supplied APersistableBundle_stringAllocator returns
+ *         false
+ */
+int32_t APersistableBundle_getPersistableBundleKeys(
+        const APersistableBundle* _Nonnull pBundle, char* _Nullable* _Nullable outKeys,
+        int32_t bufferSizeBytes, APersistableBundle_stringAllocator stringAllocator,
+        void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__);
+
+__END_DECLS
diff --git a/libs/binder/ndk/include_platform/android/binder_manager.h b/libs/binder/ndk/include_platform/android/binder_manager.h
index 89fd7a3..316a79c 100644
--- a/libs/binder/ndk/include_platform/android/binder_manager.h
+++ b/libs/binder/ndk/include_platform/android/binder_manager.h
@@ -120,7 +120,7 @@
 
 /**
  * Gets a binder object with this specific instance name. Efficiently waits for the service.
- * If the service is not declared, it will wait indefinitely. Requires the threadpool
+ * If the service is not ever registered, it will wait indefinitely. Requires the threadpool
  * to be started in the service.
  * This also implicitly calls AIBinder_incStrong (so the caller of this function is responsible
  * for calling AIBinder_decStrong).
diff --git a/libs/binder/ndk/libbinder_ndk.map.txt b/libs/binder/ndk/libbinder_ndk.map.txt
index 1c5f79f..0843a8e 100644
--- a/libs/binder/ndk/libbinder_ndk.map.txt
+++ b/libs/binder/ndk/libbinder_ndk.map.txt
@@ -161,6 +161,51 @@
     AServiceManager_addServiceWithFlags; # systemapi llndk
 };
 
+LIBBINDER_NDK35 { # introduced=VanillaIceCream
+  global:
+    APersistableBundle_readFromParcel;
+    APersistableBundle_writeToParcel;
+    APersistableBundle_new;
+    APersistableBundle_dup;
+    APersistableBundle_delete;
+    APersistableBundle_isEqual;
+    APersistableBundle_size;
+    APersistableBundle_erase;
+    APersistableBundle_putBoolean;
+    APersistableBundle_putInt;
+    APersistableBundle_putLong;
+    APersistableBundle_putDouble;
+    APersistableBundle_putString;
+    APersistableBundle_putBooleanVector;
+    APersistableBundle_putIntVector;
+    APersistableBundle_putLongVector;
+    APersistableBundle_putDoubleVector;
+    APersistableBundle_putStringVector;
+    APersistableBundle_putPersistableBundle;
+    APersistableBundle_getBoolean;
+    APersistableBundle_getInt;
+    APersistableBundle_getLong;
+    APersistableBundle_getDouble;
+    APersistableBundle_getString;
+    APersistableBundle_getBooleanVector;
+    APersistableBundle_getIntVector;
+    APersistableBundle_getLongVector;
+    APersistableBundle_getDoubleVector;
+    APersistableBundle_getStringVector;
+    APersistableBundle_getPersistableBundle;
+    APersistableBundle_getBooleanKeys;
+    APersistableBundle_getIntKeys;
+    APersistableBundle_getLongKeys;
+    APersistableBundle_getDoubleKeys;
+    APersistableBundle_getStringKeys;
+    APersistableBundle_getBooleanVectorKeys;
+    APersistableBundle_getIntVectorKeys;
+    APersistableBundle_getLongVectorKeys;
+    APersistableBundle_getDoubleVectorKeys;
+    APersistableBundle_getStringVectorKeys;
+    APersistableBundle_getPersistableBundleKeys;
+};
+
 LIBBINDER_NDK_PLATFORM {
   global:
     AParcel_getAllowFds;
diff --git a/libs/binder/ndk/parcel.cpp b/libs/binder/ndk/parcel.cpp
index 037aa2e..88ce5f4 100644
--- a/libs/binder/ndk/parcel.cpp
+++ b/libs/binder/ndk/parcel.cpp
@@ -16,24 +16,23 @@
 
 #include <android/binder_parcel.h>
 #include <android/binder_parcel_platform.h>
-#include "parcel_internal.h"
-
-#include "ibinder_internal.h"
-#include "status_internal.h"
+#include <binder/Parcel.h>
+#include <binder/ParcelFileDescriptor.h>
+#include <binder/unique_fd.h>
+#include <inttypes.h>
+#include <utils/Unicode.h>
 
 #include <limits>
 
-#include <android-base/logging.h>
-#include <android-base/unique_fd.h>
-#include <binder/Parcel.h>
-#include <binder/ParcelFileDescriptor.h>
-#include <utils/Unicode.h>
+#include "ibinder_internal.h"
+#include "parcel_internal.h"
+#include "status_internal.h"
 
 using ::android::IBinder;
 using ::android::Parcel;
 using ::android::sp;
 using ::android::status_t;
-using ::android::base::unique_fd;
+using ::android::binder::unique_fd;
 using ::android::os::ParcelFileDescriptor;
 
 template <typename T>
@@ -52,11 +51,11 @@
     if (length < -1) return STATUS_BAD_VALUE;
 
     if (!isNullArray && length < 0) {
-        LOG(ERROR) << __func__ << ": non-null array but length is " << length;
+        ALOGE("non-null array but length is %" PRIi32, length);
         return STATUS_BAD_VALUE;
     }
     if (isNullArray && length > 0) {
-        LOG(ERROR) << __func__ << ": null buffer cannot be for size " << length << " array.";
+        ALOGE("null buffer cannot be for size %" PRIi32 " array.", length);
         return STATUS_BAD_VALUE;
     }
 
@@ -325,7 +324,7 @@
 binder_status_t AParcel_writeString(AParcel* parcel, const char* string, int32_t length) {
     if (string == nullptr) {
         if (length != -1) {
-            LOG(WARNING) << __func__ << ": null string must be used with length == -1.";
+            ALOGW("null string must be used with length == -1.");
             return STATUS_BAD_VALUE;
         }
 
@@ -334,7 +333,7 @@
     }
 
     if (length < 0) {
-        LOG(WARNING) << __func__ << ": Negative string length: " << length;
+        ALOGW("Negative string length: %" PRIi32, length);
         return STATUS_BAD_VALUE;
     }
 
@@ -342,7 +341,7 @@
     const ssize_t len16 = utf8_to_utf16_length(str8, length);
 
     if (len16 < 0 || len16 >= std::numeric_limits<int32_t>::max()) {
-        LOG(WARNING) << __func__ << ": Invalid string length: " << len16;
+        ALOGW("Invalid string length: %zd", len16);
         return STATUS_BAD_VALUE;
     }
 
@@ -383,7 +382,7 @@
     }
 
     if (len8 <= 0 || len8 > std::numeric_limits<int32_t>::max()) {
-        LOG(WARNING) << __func__ << ": Invalid string length: " << len8;
+        ALOGW("Invalid string length: %zd", len8);
         return STATUS_BAD_VALUE;
     }
 
@@ -391,7 +390,7 @@
     bool success = allocator(stringData, len8, &str8);
 
     if (!success || str8 == nullptr) {
-        LOG(WARNING) << __func__ << ": AParcel_stringAllocator failed to allocate.";
+        ALOGW("AParcel_stringAllocator failed to allocate.");
         return STATUS_NO_MEMORY;
     }
 
diff --git a/libs/binder/ndk/persistable_bundle.cpp b/libs/binder/ndk/persistable_bundle.cpp
new file mode 100644
index 0000000..404611c
--- /dev/null
+++ b/libs/binder/ndk/persistable_bundle.cpp
@@ -0,0 +1,313 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <android/binder_libbinder.h>
+#include <android/persistable_bundle.h>
+#include <binder/PersistableBundle.h>
+#include <log/log.h>
+#include <persistable_bundle_internal.h>
+#include <string.h>
+
+#include <set>
+
+__BEGIN_DECLS
+
+struct APersistableBundle {
+    APersistableBundle(const APersistableBundle& pBundle) : mPBundle(pBundle.mPBundle) {}
+    APersistableBundle(const android::os::PersistableBundle& pBundle) : mPBundle(pBundle) {}
+    APersistableBundle() = default;
+    android::os::PersistableBundle mPBundle;
+};
+
+APersistableBundle* _Nullable APersistableBundle_new() {
+    return new (std::nothrow) APersistableBundle();
+}
+
+APersistableBundle* _Nullable APersistableBundle_dup(const APersistableBundle* pBundle) {
+    if (pBundle) {
+        return new APersistableBundle(*pBundle);
+    } else {
+        return new APersistableBundle();
+    }
+}
+
+void APersistableBundle_delete(APersistableBundle* pBundle) {
+    free(pBundle);
+}
+
+bool APersistableBundle_isEqual(const APersistableBundle* lhs, const APersistableBundle* rhs) {
+    if (lhs && rhs) {
+        return lhs->mPBundle == rhs->mPBundle;
+    } else if (lhs == rhs) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+binder_status_t APersistableBundle_readFromParcel(const AParcel* parcel,
+                                                  APersistableBundle* _Nullable* outPBundle) {
+    if (!parcel || !outPBundle) return STATUS_BAD_VALUE;
+    APersistableBundle* newPBundle = APersistableBundle_new();
+    if (newPBundle == nullptr) return STATUS_NO_MEMORY;
+    binder_status_t status =
+            newPBundle->mPBundle.readFromParcel(AParcel_viewPlatformParcel(parcel));
+    if (status == STATUS_OK) {
+        *outPBundle = newPBundle;
+    }
+    return status;
+}
+
+binder_status_t APersistableBundle_writeToParcel(const APersistableBundle* pBundle,
+                                                 AParcel* parcel) {
+    if (!parcel || !pBundle) return STATUS_BAD_VALUE;
+    return pBundle->mPBundle.writeToParcel(AParcel_viewPlatformParcel(parcel));
+}
+
+int32_t APersistableBundle_size(APersistableBundle* pBundle) {
+    size_t size = pBundle->mPBundle.size();
+    LOG_ALWAYS_FATAL_IF(size > INT32_MAX,
+                        "The APersistableBundle has gotten too large! There will be an overflow in "
+                        "the reported size.");
+    return pBundle->mPBundle.size();
+}
+int32_t APersistableBundle_erase(APersistableBundle* pBundle, const char* key) {
+    return pBundle->mPBundle.erase(android::String16(key));
+}
+void APersistableBundle_putBoolean(APersistableBundle* pBundle, const char* key, bool val) {
+    pBundle->mPBundle.putBoolean(android::String16(key), val);
+}
+void APersistableBundle_putInt(APersistableBundle* pBundle, const char* key, int32_t val) {
+    pBundle->mPBundle.putInt(android::String16(key), val);
+}
+void APersistableBundle_putLong(APersistableBundle* pBundle, const char* key, int64_t val) {
+    pBundle->mPBundle.putLong(android::String16(key), val);
+}
+void APersistableBundle_putDouble(APersistableBundle* pBundle, const char* key, double val) {
+    pBundle->mPBundle.putDouble(android::String16(key), val);
+}
+void APersistableBundle_putString(APersistableBundle* pBundle, const char* key, const char* val) {
+    pBundle->mPBundle.putString(android::String16(key), android::String16(val));
+}
+void APersistableBundle_putBooleanVector(APersistableBundle* pBundle, const char* key,
+                                         const bool* vec, int32_t num) {
+    LOG_ALWAYS_FATAL_IF(num < 0, "Negative number of elements is invalid.");
+    std::vector<bool> newVec(num);
+    for (int32_t i = 0; i < num; i++) {
+        newVec[i] = vec[i];
+    }
+    pBundle->mPBundle.putBooleanVector(android::String16(key), newVec);
+}
+void APersistableBundle_putIntVector(APersistableBundle* pBundle, const char* key,
+                                     const int32_t* vec, int32_t num) {
+    LOG_ALWAYS_FATAL_IF(num < 0, "Negative number of elements is invalid.");
+    std::vector<int32_t> newVec(num);
+    for (int32_t i = 0; i < num; i++) {
+        newVec[i] = vec[i];
+    }
+    pBundle->mPBundle.putIntVector(android::String16(key), newVec);
+}
+void APersistableBundle_putLongVector(APersistableBundle* pBundle, const char* key,
+                                      const int64_t* vec, int32_t num) {
+    LOG_ALWAYS_FATAL_IF(num < 0, "Negative number of elements is invalid.");
+    std::vector<int64_t> newVec(num);
+    for (int32_t i = 0; i < num; i++) {
+        newVec[i] = vec[i];
+    }
+    pBundle->mPBundle.putLongVector(android::String16(key), newVec);
+}
+void APersistableBundle_putDoubleVector(APersistableBundle* pBundle, const char* key,
+                                        const double* vec, int32_t num) {
+    LOG_ALWAYS_FATAL_IF(num < 0, "Negative number of elements is invalid.");
+    std::vector<double> newVec(num);
+    for (int32_t i = 0; i < num; i++) {
+        newVec[i] = vec[i];
+    }
+    pBundle->mPBundle.putDoubleVector(android::String16(key), newVec);
+}
+void APersistableBundle_putStringVector(APersistableBundle* pBundle, const char* key,
+                                        const char* const* vec, int32_t num) {
+    LOG_ALWAYS_FATAL_IF(num < 0, "Negative number of elements is invalid.");
+    std::vector<android::String16> newVec(num);
+    for (int32_t i = 0; i < num; i++) {
+        newVec[i] = android::String16(vec[i]);
+    }
+    pBundle->mPBundle.putStringVector(android::String16(key), newVec);
+}
+void APersistableBundle_putPersistableBundle(APersistableBundle* pBundle, const char* key,
+                                             const APersistableBundle* val) {
+    pBundle->mPBundle.putPersistableBundle(android::String16(key), val->mPBundle);
+}
+bool APersistableBundle_getBoolean(const APersistableBundle* pBundle, const char* key, bool* val) {
+    return pBundle->mPBundle.getBoolean(android::String16(key), val);
+}
+bool APersistableBundle_getInt(const APersistableBundle* pBundle, const char* key, int32_t* val) {
+    return pBundle->mPBundle.getInt(android::String16(key), val);
+}
+bool APersistableBundle_getLong(const APersistableBundle* pBundle, const char* key, int64_t* val) {
+    return pBundle->mPBundle.getLong(android::String16(key), val);
+}
+bool APersistableBundle_getDouble(const APersistableBundle* pBundle, const char* key, double* val) {
+    return pBundle->mPBundle.getDouble(android::String16(key), val);
+}
+int32_t APersistableBundle_getString(const APersistableBundle* pBundle, const char* key, char** val,
+                                     APersistableBundle_stringAllocator stringAllocator,
+                                     void* context) {
+    android::String16 outVal;
+    bool ret = pBundle->mPBundle.getString(android::String16(key), &outVal);
+    if (ret) {
+        android::String8 tmp8(outVal);
+        *val = stringAllocator(tmp8.bytes() + 1, context);
+        if (*val) {
+            strncpy(*val, tmp8.c_str(), tmp8.bytes() + 1);
+            return tmp8.bytes();
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+}
+int32_t APersistableBundle_getBooleanVector(const APersistableBundle* pBundle, const char* key,
+                                            bool* buffer, int32_t bufferSizeBytes) {
+    std::vector<bool> newVec;
+    pBundle->mPBundle.getBooleanVector(android::String16(key), &newVec);
+    return getVecInternal<bool>(newVec, buffer, bufferSizeBytes);
+}
+int32_t APersistableBundle_getIntVector(const APersistableBundle* pBundle, const char* key,
+                                        int32_t* buffer, int32_t bufferSizeBytes) {
+    std::vector<int32_t> newVec;
+    pBundle->mPBundle.getIntVector(android::String16(key), &newVec);
+    return getVecInternal<int32_t>(newVec, buffer, bufferSizeBytes);
+}
+int32_t APersistableBundle_getLongVector(const APersistableBundle* pBundle, const char* key,
+                                         int64_t* buffer, int32_t bufferSizeBytes) {
+    std::vector<int64_t> newVec;
+    pBundle->mPBundle.getLongVector(android::String16(key), &newVec);
+    return getVecInternal<int64_t>(newVec, buffer, bufferSizeBytes);
+}
+int32_t APersistableBundle_getDoubleVector(const APersistableBundle* pBundle, const char* key,
+                                           double* buffer, int32_t bufferSizeBytes) {
+    std::vector<double> newVec;
+    pBundle->mPBundle.getDoubleVector(android::String16(key), &newVec);
+    return getVecInternal<double>(newVec, buffer, bufferSizeBytes);
+}
+int32_t APersistableBundle_getStringVector(const APersistableBundle* pBundle, const char* key,
+                                           char** vec, int32_t bufferSizeBytes,
+                                           APersistableBundle_stringAllocator stringAllocator,
+                                           void* context) {
+    std::vector<android::String16> newVec;
+    pBundle->mPBundle.getStringVector(android::String16(key), &newVec);
+    return getStringsInternal<std::vector<android::String16>>(newVec, vec, bufferSizeBytes,
+                                                              stringAllocator, context);
+}
+bool APersistableBundle_getPersistableBundle(const APersistableBundle* pBundle, const char* key,
+                                             APersistableBundle** outBundle) {
+    APersistableBundle* bundle = APersistableBundle_new();
+    bool ret = pBundle->mPBundle.getPersistableBundle(android::String16(key), &bundle->mPBundle);
+    if (ret) {
+        *outBundle = bundle;
+        return true;
+    }
+    return false;
+}
+int32_t APersistableBundle_getBooleanKeys(const APersistableBundle* pBundle, char** outKeys,
+                                          int32_t bufferSizeBytes,
+                                          APersistableBundle_stringAllocator stringAllocator,
+                                          void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getBooleanKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getIntKeys(const APersistableBundle* pBundle, char** outKeys,
+                                      int32_t bufferSizeBytes,
+                                      APersistableBundle_stringAllocator stringAllocator,
+                                      void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getIntKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getLongKeys(const APersistableBundle* pBundle, char** outKeys,
+                                       int32_t bufferSizeBytes,
+                                       APersistableBundle_stringAllocator stringAllocator,
+                                       void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getLongKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getDoubleKeys(const APersistableBundle* pBundle, char** outKeys,
+                                         int32_t bufferSizeBytes,
+                                         APersistableBundle_stringAllocator stringAllocator,
+                                         void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getDoubleKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getStringKeys(const APersistableBundle* pBundle, char** outKeys,
+                                         int32_t bufferSizeBytes,
+                                         APersistableBundle_stringAllocator stringAllocator,
+                                         void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getStringKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getBooleanVectorKeys(const APersistableBundle* pBundle, char** outKeys,
+                                                int32_t bufferSizeBytes,
+                                                APersistableBundle_stringAllocator stringAllocator,
+                                                void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getBooleanVectorKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getIntVectorKeys(const APersistableBundle* pBundle, char** outKeys,
+                                            int32_t bufferSizeBytes,
+                                            APersistableBundle_stringAllocator stringAllocator,
+                                            void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getIntVectorKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getLongVectorKeys(const APersistableBundle* pBundle, char** outKeys,
+                                             int32_t bufferSizeBytes,
+                                             APersistableBundle_stringAllocator stringAllocator,
+                                             void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getLongVectorKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getDoubleVectorKeys(const APersistableBundle* pBundle, char** outKeys,
+                                               int32_t bufferSizeBytes,
+                                               APersistableBundle_stringAllocator stringAllocator,
+                                               void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getDoubleVectorKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getStringVectorKeys(const APersistableBundle* pBundle, char** outKeys,
+                                               int32_t bufferSizeBytes,
+                                               APersistableBundle_stringAllocator stringAllocator,
+                                               void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getStringVectorKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+int32_t APersistableBundle_getPersistableBundleKeys(
+        const APersistableBundle* pBundle, char** outKeys, int32_t bufferSizeBytes,
+        APersistableBundle_stringAllocator stringAllocator, void* context) {
+    std::set<android::String16> ret = pBundle->mPBundle.getPersistableBundleKeys();
+    return getStringsInternal<std::set<android::String16>>(ret, outKeys, bufferSizeBytes,
+                                                           stringAllocator, context);
+}
+
+__END_DECLS
diff --git a/libs/binder/ndk/persistable_bundle_internal.h b/libs/binder/ndk/persistable_bundle_internal.h
new file mode 100644
index 0000000..279c66f
--- /dev/null
+++ b/libs/binder/ndk/persistable_bundle_internal.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include <android/persistable_bundle.h>
+#include <log/log.h>
+#include <utils/String8.h>
+
+//  take a vector and put the contents into a buffer.
+//  return the size of the contents.
+//  This may not put all of the contents into the buffer if the buffer is not
+//  large enough.
+template <typename T>
+int32_t getVecInternal(const std::vector<T>& inVec, T* _Nullable buffer, int32_t bufferSizeBytes) {
+    LOG_ALWAYS_FATAL_IF(inVec.size() > INT32_MAX,
+                        "The size of the APersistableBundle has gotten too large!");
+    LOG_ALWAYS_FATAL_IF(
+            bufferSizeBytes < 0,
+            "The buffer size in bytes can not be larger than INT32_MAX and can not be negative.");
+    int32_t num = inVec.size();
+    int32_t numAvailable = bufferSizeBytes / sizeof(T);
+    int32_t numFill = numAvailable < num ? numAvailable : num;
+
+    if (numFill > 0 && buffer) {
+        for (int32_t i = 0; i < numFill; i++) {
+            buffer[i] = inVec[i];
+        }
+    }
+    return num * sizeof(T);
+}
+
+//  take a vector or a set of String16 and put the contents into a char** buffer.
+//  return the size of the contents.
+//  This may not put all of the contents into the buffer if the buffer is not
+//  large enough.
+//  The strings are duped with a user supplied callback
+template <typename T>
+int32_t getStringsInternal(const T& strings, char* _Nullable* _Nullable buffer,
+                           int32_t bufferSizeBytes,
+                           APersistableBundle_stringAllocator stringAllocator,
+                           void* _Nullable context) {
+    LOG_ALWAYS_FATAL_IF(strings.size() > INT32_MAX,
+                        "The size of the APersistableBundle has gotten too large!");
+    LOG_ALWAYS_FATAL_IF(
+            bufferSizeBytes < 0,
+            "The buffer size in bytes can not be larger than INT32_MAX and can not be negative.");
+    int32_t num = strings.size();
+    int32_t numAvailable = bufferSizeBytes / sizeof(char*);
+    int32_t numFill = numAvailable < num ? numAvailable : num;
+    if (!stringAllocator) {
+        return -1;
+    }
+
+    if (numFill > 0 && buffer) {
+        int32_t i = 0;
+        for (const auto& val : strings) {
+            android::String8 tmp8 = android::String8(val);
+            buffer[i] = stringAllocator(tmp8.bytes() + 1, context);
+            if (buffer[i] == nullptr) {
+                return -1;
+            }
+            strncpy(buffer[i], tmp8.c_str(), tmp8.bytes() + 1);
+            i++;
+            if (i > numFill - 1) {
+                // buffer is too small to keep going or this is the end of the
+                // set
+                break;
+            }
+        }
+    }
+    return num * sizeof(char*);
+}
diff --git a/libs/binder/ndk/process.cpp b/libs/binder/ndk/process.cpp
index 0fea57b..0072ac3 100644
--- a/libs/binder/ndk/process.cpp
+++ b/libs/binder/ndk/process.cpp
@@ -15,12 +15,10 @@
  */
 
 #include <android/binder_process.h>
+#include <binder/IPCThreadState.h>
 
 #include <mutex>
 
-#include <android-base/logging.h>
-#include <binder/IPCThreadState.h>
-
 using ::android::IPCThreadState;
 using ::android::ProcessState;
 
diff --git a/libs/binder/ndk/service_manager.cpp b/libs/binder/ndk/service_manager.cpp
index 2977786..3bfdc59 100644
--- a/libs/binder/ndk/service_manager.cpp
+++ b/libs/binder/ndk/service_manager.cpp
@@ -15,14 +15,12 @@
  */
 
 #include <android/binder_manager.h>
+#include <binder/IServiceManager.h>
+#include <binder/LazyServiceRegistrar.h>
 
 #include "ibinder_internal.h"
 #include "status_internal.h"
 
-#include <android-base/logging.h>
-#include <binder/IServiceManager.h>
-#include <binder/LazyServiceRegistrar.h>
-
 using ::android::defaultServiceManager;
 using ::android::IBinder;
 using ::android::IServiceManager;
@@ -115,7 +113,8 @@
         std::lock_guard<std::mutex> l(m);
         if (onRegister == nullptr) return;
 
-        CHECK_EQ(String8(smInstance), instance);
+        LOG_ALWAYS_FATAL_IF(String8(smInstance) != instance, "onServiceRegistration: %s != %s",
+                            String8(smInstance).c_str(), instance);
 
         sp<AIBinder> ret = ABpBinder::lookupOrCreateFromBinder(binder);
         AIBinder_incStrong(ret.get());
@@ -135,8 +134,8 @@
 AServiceManager_registerForServiceNotifications(const char* instance,
                                                 AServiceManager_onRegister onRegister,
                                                 void* cookie) {
-    CHECK_NE(instance, nullptr);
-    CHECK_NE(onRegister, nullptr) << instance;
+    LOG_ALWAYS_FATAL_IF(instance == nullptr, "instance == nullptr");
+    LOG_ALWAYS_FATAL_IF(onRegister == nullptr, "onRegister == nullptr for %s", instance);
     // cookie can be nullptr
 
     auto cb = sp<AServiceManager_NotificationRegistration>::make();
@@ -146,8 +145,8 @@
 
     sp<IServiceManager> sm = defaultServiceManager();
     if (status_t res = sm->registerForNotifications(String16(instance), cb); res != STATUS_OK) {
-        LOG(ERROR) << "Failed to register for service notifications for " << instance << ": "
-                   << statusToString(res);
+        ALOGE("Failed to register for service notifications for %s: %s", instance,
+              statusToString(res).c_str());
         return nullptr;
     }
 
@@ -157,7 +156,7 @@
 
 void AServiceManager_NotificationRegistration_delete(
         AServiceManager_NotificationRegistration* notification) {
-    CHECK_NE(notification, nullptr);
+    LOG_ALWAYS_FATAL_IF(notification == nullptr, "notification == nullptr");
     notification->clear();
     notification->decStrong(nullptr);
 }
@@ -172,9 +171,9 @@
 }
 void AServiceManager_forEachDeclaredInstance(const char* interface, void* context,
                                              void (*callback)(const char*, void*)) {
-    CHECK(interface != nullptr);
+    LOG_ALWAYS_FATAL_IF(interface == nullptr, "interface == nullptr");
     // context may be nullptr
-    CHECK(callback != nullptr);
+    LOG_ALWAYS_FATAL_IF(callback == nullptr, "callback == nullptr");
 
     sp<IServiceManager> sm = defaultServiceManager();
     for (const String16& instance : sm->getDeclaredInstances(String16(interface))) {
@@ -191,9 +190,9 @@
 }
 void AServiceManager_getUpdatableApexName(const char* instance, void* context,
                                           void (*callback)(const char*, void*)) {
-    CHECK_NE(instance, nullptr);
+    LOG_ALWAYS_FATAL_IF(instance == nullptr, "instance == nullptr");
     // context may be nullptr
-    CHECK_NE(callback, nullptr);
+    LOG_ALWAYS_FATAL_IF(callback == nullptr, "callback == nullptr");
 
     sp<IServiceManager> sm = defaultServiceManager();
     std::optional<String16> updatableViaApex = sm->updatableViaApex(String16(instance));
diff --git a/libs/binder/ndk/stability.cpp b/libs/binder/ndk/stability.cpp
index 7eafb9c..73eb863 100644
--- a/libs/binder/ndk/stability.cpp
+++ b/libs/binder/ndk/stability.cpp
@@ -27,6 +27,10 @@
 #error libbinder_ndk should only be built in a system context
 #endif
 
+#ifdef __ANDROID_VENDOR__
+#error libbinder_ndk should only be built in a system context
+#endif
+
 #ifdef __ANDROID_NDK__
 #error libbinder_ndk should only be built in a system context
 #endif
diff --git a/libs/binder/ndk/status.cpp b/libs/binder/ndk/status.cpp
index 8ed91a5..3aac3c0 100644
--- a/libs/binder/ndk/status.cpp
+++ b/libs/binder/ndk/status.cpp
@@ -17,8 +17,6 @@
 #include <android/binder_status.h>
 #include "status_internal.h"
 
-#include <android-base/logging.h>
-
 using ::android::status_t;
 using ::android::statusToString;
 using ::android::binder::Status;
@@ -127,8 +125,8 @@
             return STATUS_UNKNOWN_ERROR;
 
         default:
-            LOG(WARNING) << __func__ << ": Unknown status_t (" << statusToString(status)
-                         << ") pruned into STATUS_UNKNOWN_ERROR";
+            ALOGW("%s: Unknown status_t (%s) pruned into STATUS_UNKNOWN_ERROR", __func__,
+                  statusToString(status).c_str());
             return STATUS_UNKNOWN_ERROR;
     }
 }
@@ -159,8 +157,8 @@
             return EX_TRANSACTION_FAILED;
 
         default:
-            LOG(WARNING) << __func__ << ": Unknown binder exception (" << exception
-                         << ") pruned into EX_TRANSACTION_FAILED";
+            ALOGW("%s: Unknown binder exception (%d) pruned into EX_TRANSACTION_FAILED", __func__,
+                  exception);
             return EX_TRANSACTION_FAILED;
     }
 }
diff --git a/libs/binder/ndk/tests/iface.cpp b/libs/binder/ndk/tests/iface.cpp
index 76acff5..3ee36cd 100644
--- a/libs/binder/ndk/tests/iface.cpp
+++ b/libs/binder/ndk/tests/iface.cpp
@@ -156,7 +156,10 @@
 }
 
 sp<IFoo> IFoo::getService(const char* instance, AIBinder** outBinder) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     AIBinder* binder = AServiceManager_getService(instance);  // maybe nullptr
+#pragma clang diagnostic pop
     if (binder == nullptr) {
         return nullptr;
     }
diff --git a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
index 15708ca..cab1a60 100644
--- a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
+++ b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
@@ -341,7 +341,10 @@
     // libbinder across processes to the NDK service which doesn't implement
     // shell
     static const sp<android::IServiceManager> sm(android::defaultServiceManager());
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     sp<IBinder> testService = sm->getService(String16(IFoo::kSomeInstanceName));
+#pragma clang diagnostic pop
 
     Vector<String16> argsVec;
     EXPECT_EQ(OK, IBinder::shellCommand(testService, STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO,
@@ -384,7 +387,10 @@
     // checkService on it, since the other process serving it might not be started yet.
     {
         // getService, not waitForService, to take advantage of timeout
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
         auto binder = ndk::SpAIBinder(AServiceManager_getService(IFoo::kSomeInstanceName));
+#pragma clang diagnostic pop
         ASSERT_NE(nullptr, binder.get());
     }
 
@@ -574,7 +580,10 @@
 }
 
 TEST(NdkBinder, RetrieveNonNdkService) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     AIBinder* binder = AServiceManager_getService(kExistingNonNdkService);
+#pragma clang diagnostic pop
     ASSERT_NE(nullptr, binder);
     EXPECT_TRUE(AIBinder_isRemote(binder));
     EXPECT_TRUE(AIBinder_isAlive(binder));
@@ -588,7 +597,10 @@
 }
 
 TEST(NdkBinder, LinkToDeath) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     AIBinder* binder = AServiceManager_getService(kExistingNonNdkService);
+#pragma clang diagnostic pop
     ASSERT_NE(nullptr, binder);
 
     AIBinder_DeathRecipient* recipient = AIBinder_DeathRecipient_new(OnBinderDeath);
@@ -618,7 +630,10 @@
 }
 
 TEST(NdkBinder, SetInheritRtNonLocal) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     AIBinder* binder = AServiceManager_getService(kExistingNonNdkService);
+#pragma clang diagnostic pop
     ASSERT_NE(binder, nullptr);
 
     ASSERT_TRUE(AIBinder_isRemote(binder));
@@ -654,11 +669,14 @@
 }
 
 TEST(NdkBinder, EqualityOfRemoteBinderPointer) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     AIBinder* binderA = AServiceManager_getService(kExistingNonNdkService);
     ASSERT_NE(nullptr, binderA);
 
     AIBinder* binderB = AServiceManager_getService(kExistingNonNdkService);
     ASSERT_NE(nullptr, binderB);
+#pragma clang diagnostic pop
 
     EXPECT_EQ(binderA, binderB);
 
@@ -672,7 +690,10 @@
 }
 
 TEST(NdkBinder, ABpBinderRefCount) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     AIBinder* binder = AServiceManager_getService(kExistingNonNdkService);
+#pragma clang diagnostic pop
     AIBinder_Weak* wBinder = AIBinder_Weak_new(binder);
 
     ASSERT_NE(nullptr, binder);
@@ -695,7 +716,10 @@
 }
 
 TEST(NdkBinder, RequestedSidWorks) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     ndk::SpAIBinder binder(AServiceManager_getService(kBinderNdkUnitTestService));
+#pragma clang diagnostic pop
     std::shared_ptr<aidl::IBinderNdkUnitTest> service =
             aidl::IBinderNdkUnitTest::fromBinder(binder);
 
@@ -718,7 +742,10 @@
 
     std::shared_ptr<MyEmpty> empty = ndk::SharedRefBase::make<MyEmpty>();
 
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     ndk::SpAIBinder binder(AServiceManager_getService(kBinderNdkUnitTestService));
+#pragma clang diagnostic pop
     std::shared_ptr<aidl::IBinderNdkUnitTest> service =
             aidl::IBinderNdkUnitTest::fromBinder(binder);
 
@@ -741,7 +768,10 @@
 TEST(NdkBinder, ConvertToPlatformBinder) {
     for (const ndk::SpAIBinder& binder :
          {// remote
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
           ndk::SpAIBinder(AServiceManager_getService(kBinderNdkUnitTestService)),
+#pragma clang diagnostic pop
           // local
           ndk::SharedRefBase::make<MyBinderNdkUnitTest>()->asBinder()}) {
         // convert to platform binder
@@ -774,7 +804,10 @@
 TEST(NdkBinder, GetAndVerifyScopedAIBinder_Weak) {
     for (const ndk::SpAIBinder& binder :
          {// remote
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
           ndk::SpAIBinder(AServiceManager_getService(kBinderNdkUnitTestService)),
+#pragma clang diagnostic pop
           // local
           ndk::SharedRefBase::make<MyBinderNdkUnitTest>()->asBinder()}) {
         // get a const ScopedAIBinder_Weak and verify promote
@@ -869,7 +902,10 @@
 
 TEST(NdkBinder, UseHandleShellCommand) {
     static const sp<android::IServiceManager> sm(android::defaultServiceManager());
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     sp<IBinder> testService = sm->getService(String16(kBinderNdkUnitTestService));
+#pragma clang diagnostic pop
 
     EXPECT_EQ("", shellCmdToString(testService, {}));
     EXPECT_EQ("", shellCmdToString(testService, {"", ""}));
@@ -879,7 +915,10 @@
 
 TEST(NdkBinder, FlaggedServiceAccessible) {
     static const sp<android::IServiceManager> sm(android::defaultServiceManager());
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     sp<IBinder> testService = sm->getService(String16(kBinderNdkUnitTestServiceFlagged));
+#pragma clang diagnostic pop
     ASSERT_NE(nullptr, testService);
 }
 
diff --git a/libs/binder/rust/src/binder.rs b/libs/binder/rust/src/binder.rs
index 463c210..6d122c5 100644
--- a/libs/binder/rust/src/binder.rs
+++ b/libs/binder/rust/src/binder.rs
@@ -21,12 +21,13 @@
 use crate::proxy::{DeathRecipient, SpIBinder, WpIBinder};
 use crate::sys;
 
+use downcast_rs::{impl_downcast, DowncastSync};
 use std::borrow::Borrow;
 use std::cmp::Ordering;
 use std::convert::TryFrom;
 use std::ffi::{c_void, CStr, CString};
 use std::fmt;
-use std::fs::File;
+use std::io::Write;
 use std::marker::PhantomData;
 use std::ops::Deref;
 use std::os::raw::c_char;
@@ -51,7 +52,7 @@
 /// interfaces) must implement this trait.
 ///
 /// This is equivalent `IInterface` in C++.
-pub trait Interface: Send + Sync {
+pub trait Interface: Send + Sync + DowncastSync {
     /// Convert this binder object into a generic [`SpIBinder`] reference.
     fn as_binder(&self) -> SpIBinder {
         panic!("This object was not a Binder object and cannot be converted into an SpIBinder.")
@@ -61,11 +62,13 @@
     ///
     /// This handler is a no-op by default and should be implemented for each
     /// Binder service struct that wishes to respond to dump transactions.
-    fn dump(&self, _file: &File, _args: &[&CStr]) -> Result<()> {
+    fn dump(&self, _writer: &mut dyn Write, _args: &[&CStr]) -> Result<()> {
         Ok(())
     }
 }
 
+impl_downcast!(sync Interface);
+
 /// Implemented by sync interfaces to specify what the associated async interface is.
 /// Generic to handle the fact that async interfaces are generic over a thread pool.
 ///
@@ -143,7 +146,7 @@
 /// When using the AIDL backend, users need only implement the high-level AIDL-defined
 /// interface. The AIDL compiler then generates a container struct that wraps
 /// the user-defined service and implements `Remotable`.
-pub trait Remotable: Send + Sync {
+pub trait Remotable: Send + Sync + 'static {
     /// The Binder interface descriptor string.
     ///
     /// This string is a unique identifier for a Binder interface, and should be
@@ -162,7 +165,7 @@
 
     /// Handle a request to invoke the dump transaction on this
     /// object.
-    fn on_dump(&self, file: &File, args: &[&CStr]) -> Result<()>;
+    fn on_dump(&self, file: &mut dyn Write, args: &[&CStr]) -> Result<()>;
 
     /// Retrieve the class of this remote object.
     ///
@@ -436,7 +439,7 @@
 
 impl<I: FromIBinder + ?Sized> PartialOrd for Strong<I> {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        self.0.as_binder().partial_cmp(&other.0.as_binder())
+        Some(self.cmp(other))
     }
 }
 
@@ -483,7 +486,7 @@
 
 impl<I: FromIBinder + ?Sized> PartialOrd for Weak<I> {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        self.weak_binder.partial_cmp(&other.weak_binder)
+        Some(self.cmp(other))
     }
 }
 
@@ -893,6 +896,23 @@
                 $crate::binder_impl::IBinderInternal::set_requesting_sid(&mut binder, features.set_requesting_sid);
                 $crate::Strong::new(Box::new(binder))
             }
+
+            /// Tries to downcast the interface to another type.
+            /// When receiving this object from a binder call, make sure that the object received is
+            /// a binder native object and that is of the right type for the Downcast:
+            ///
+            /// let binder = received_object.as_binder();
+            /// if !binder.is_remote() {
+            ///     let binder_native: Binder<BnFoo> = binder.try_into()?;
+            ///     let original_object = binder_native.downcast_binder::<MyFoo>();
+            ///     // Check that returned type is not None before using it
+            /// }
+            ///
+            /// Handle the error cases instead of just calling `unwrap` or `expect` to prevent a
+            /// malicious caller to mount a Denial of Service attack.
+            pub fn downcast_binder<T: $interface>(&self) -> Option<&T> {
+                self.0.as_any().downcast_ref::<T>()
+            }
         }
 
         impl $crate::binder_impl::Remotable for $native {
@@ -914,8 +934,8 @@
                 }
             }
 
-            fn on_dump(&self, file: &std::fs::File, args: &[&std::ffi::CStr]) -> std::result::Result<(), $crate::StatusCode> {
-                self.0.dump(file, args)
+            fn on_dump(&self, writer: &mut dyn std::io::Write, args: &[&std::ffi::CStr]) -> std::result::Result<(), $crate::StatusCode> {
+                self.0.dump(writer, args)
             }
 
             fn get_class() -> $crate::binder_impl::InterfaceClass {
@@ -1004,7 +1024,7 @@
 
         $(
         // Async interface trait implementations.
-        impl<P: $crate::BinderAsyncPool> $crate::FromIBinder for dyn $async_interface<P> {
+        impl<P: $crate::BinderAsyncPool + 'static> $crate::FromIBinder for dyn $async_interface<P> {
             fn try_from(mut ibinder: $crate::SpIBinder) -> std::result::Result<$crate::Strong<dyn $async_interface<P>>, $crate::StatusCode> {
                 use $crate::binder_impl::AssociateClass;
 
@@ -1030,27 +1050,27 @@
             }
         }
 
-        impl<P: $crate::BinderAsyncPool> $crate::binder_impl::Serialize for dyn $async_interface<P> + '_ {
+        impl<P: $crate::BinderAsyncPool + 'static> $crate::binder_impl::Serialize for dyn $async_interface<P> + '_ {
             fn serialize(&self, parcel: &mut $crate::binder_impl::BorrowedParcel<'_>) -> std::result::Result<(), $crate::StatusCode> {
                 let binder = $crate::Interface::as_binder(self);
                 parcel.write(&binder)
             }
         }
 
-        impl<P: $crate::BinderAsyncPool> $crate::binder_impl::SerializeOption for dyn $async_interface<P> + '_ {
+        impl<P: $crate::BinderAsyncPool + 'static> $crate::binder_impl::SerializeOption for dyn $async_interface<P> + '_ {
             fn serialize_option(this: Option<&Self>, parcel: &mut $crate::binder_impl::BorrowedParcel<'_>) -> std::result::Result<(), $crate::StatusCode> {
                 parcel.write(&this.map($crate::Interface::as_binder))
             }
         }
 
-        impl<P: $crate::BinderAsyncPool> std::fmt::Debug for dyn $async_interface<P> + '_ {
+        impl<P: $crate::BinderAsyncPool + 'static> std::fmt::Debug for dyn $async_interface<P> + '_ {
             fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
                 f.pad(stringify!($async_interface))
             }
         }
 
         /// Convert a &dyn $async_interface to Strong<dyn $async_interface>
-        impl<P: $crate::BinderAsyncPool> std::borrow::ToOwned for dyn $async_interface<P> {
+        impl<P: $crate::BinderAsyncPool + 'static> std::borrow::ToOwned for dyn $async_interface<P> {
             type Owned = $crate::Strong<dyn $async_interface<P>>;
             fn to_owned(&self) -> Self::Owned {
                 self.as_binder().into_interface()
@@ -1058,11 +1078,11 @@
             }
         }
 
-        impl<P: $crate::BinderAsyncPool> $crate::binder_impl::ToAsyncInterface<P> for dyn $interface {
+        impl<P: $crate::BinderAsyncPool + 'static> $crate::binder_impl::ToAsyncInterface<P> for dyn $interface {
             type Target = dyn $async_interface<P>;
         }
 
-        impl<P: $crate::BinderAsyncPool> $crate::binder_impl::ToSyncInterface for dyn $async_interface<P> {
+        impl<P: $crate::BinderAsyncPool + 'static> $crate::binder_impl::ToSyncInterface for dyn $async_interface<P> {
             type Target = dyn $interface;
         }
         )?
diff --git a/libs/binder/rust/src/lib.rs b/libs/binder/rust/src/lib.rs
index 8841fe6..ed870b6 100644
--- a/libs/binder/rust/src/lib.rs
+++ b/libs/binder/rust/src/lib.rs
@@ -144,6 +144,7 @@
 #[doc(hidden)]
 pub mod unstable_api {
     pub use crate::binder::AsNative;
+    pub use crate::error::status_result;
     pub use crate::proxy::unstable_api::new_spibinder;
     pub use crate::sys::AIBinder;
     pub use crate::sys::AParcel;
diff --git a/libs/binder/rust/src/native.rs b/libs/binder/rust/src/native.rs
index b248f5e..b250012 100644
--- a/libs/binder/rust/src/native.rs
+++ b/libs/binder/rust/src/native.rs
@@ -25,6 +25,7 @@
 use std::convert::TryFrom;
 use std::ffi::{c_void, CStr, CString};
 use std::fs::File;
+use std::io::Write;
 use std::mem::ManuallyDrop;
 use std::ops::Deref;
 use std::os::raw::c_char;
@@ -341,7 +342,7 @@
         }
         // Safety: Our caller promised that fd is a file descriptor. We don't
         // own this file descriptor, so we need to be careful not to drop it.
-        let file = unsafe { ManuallyDrop::new(File::from_raw_fd(fd)) };
+        let mut file = unsafe { ManuallyDrop::new(File::from_raw_fd(fd)) };
 
         if args.is_null() && num_args != 0 {
             return StatusCode::UNEXPECTED_NULL as status_t;
@@ -366,7 +367,7 @@
         // Safety: Our caller promised that the binder has a `T` pointer in its
         // user data.
         let binder: &T = unsafe { &*(object as *const T) };
-        let res = binder.on_dump(&file, &args);
+        let res = binder.on_dump(&mut *file, &args);
 
         match res {
             Ok(()) => 0,
@@ -569,7 +570,7 @@
         Ok(())
     }
 
-    fn on_dump(&self, _file: &File, _args: &[&CStr]) -> Result<()> {
+    fn on_dump(&self, _writer: &mut dyn Write, _args: &[&CStr]) -> Result<()> {
         Ok(())
     }
 
diff --git a/libs/binder/rust/src/parcel.rs b/libs/binder/rust/src/parcel.rs
index 3c615ed..f9f135d 100644
--- a/libs/binder/rust/src/parcel.rs
+++ b/libs/binder/rust/src/parcel.rs
@@ -54,6 +54,10 @@
 
 /// Safety: This type guarantees that it owns the AParcel and that all access to
 /// the AParcel happens through the Parcel, so it is ok to send across threads.
+///
+/// It would not be okay to implement Sync, because that would allow you to call
+/// the reading methods from several threads in parallel, which would be a data
+/// race on the cursor position inside the AParcel.
 unsafe impl Send for Parcel {}
 
 /// Container for a message (data and object references) that can be sent
diff --git a/libs/binder/rust/src/parcel/file_descriptor.rs b/libs/binder/rust/src/parcel/file_descriptor.rs
index 5c688fa..6afe5ab 100644
--- a/libs/binder/rust/src/parcel/file_descriptor.rs
+++ b/libs/binder/rust/src/parcel/file_descriptor.rs
@@ -22,29 +22,28 @@
 use crate::error::{status_result, Result, StatusCode};
 use crate::sys;
 
-use std::fs::File;
-use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
+use std::os::fd::{AsRawFd, FromRawFd, IntoRawFd, OwnedFd, RawFd};
 
 /// Rust version of the Java class android.os.ParcelFileDescriptor
 #[derive(Debug)]
-pub struct ParcelFileDescriptor(File);
+pub struct ParcelFileDescriptor(OwnedFd);
 
 impl ParcelFileDescriptor {
     /// Create a new `ParcelFileDescriptor`
-    pub fn new(file: File) -> Self {
-        Self(file)
+    pub fn new<F: Into<OwnedFd>>(fd: F) -> Self {
+        Self(fd.into())
     }
 }
 
-impl AsRef<File> for ParcelFileDescriptor {
-    fn as_ref(&self) -> &File {
+impl AsRef<OwnedFd> for ParcelFileDescriptor {
+    fn as_ref(&self) -> &OwnedFd {
         &self.0
     }
 }
 
-impl From<ParcelFileDescriptor> for File {
-    fn from(file: ParcelFileDescriptor) -> File {
-        file.0
+impl From<ParcelFileDescriptor> for OwnedFd {
+    fn from(fd: ParcelFileDescriptor) -> OwnedFd {
+        fd.0
     }
 }
 
@@ -120,7 +119,7 @@
             // Safety: At this point, we know that the file descriptor was
             // not -1, so must be a valid, owned file descriptor which we
             // can safely turn into a `File`.
-            let file = unsafe { File::from_raw_fd(fd) };
+            let file = unsafe { OwnedFd::from_raw_fd(fd) };
             Ok(Some(ParcelFileDescriptor::new(file)))
         }
     }
diff --git a/libs/binder/rust/tests/integration.rs b/libs/binder/rust/tests/integration.rs
index c049b80..c87fa89 100644
--- a/libs/binder/rust/tests/integration.rs
+++ b/libs/binder/rust/tests/integration.rs
@@ -26,7 +26,7 @@
 
 use std::convert::{TryFrom, TryInto};
 use std::ffi::CStr;
-use std::fs::File;
+use std::io::Write;
 use std::sync::Mutex;
 
 /// Name of service runner.
@@ -118,7 +118,7 @@
 }
 
 impl Interface for TestService {
-    fn dump(&self, _file: &File, args: &[&CStr]) -> Result<(), StatusCode> {
+    fn dump(&self, _writer: &mut dyn Write, args: &[&CStr]) -> Result<(), StatusCode> {
         let mut dump_args = self.dump_args.lock().unwrap();
         dump_args.extend(args.iter().map(|s| s.to_str().unwrap().to_owned()));
         Ok(())
diff --git a/libs/binder/rust/tests/ndk_rust_interop.rs b/libs/binder/rust/tests/ndk_rust_interop.rs
index 37f182e..fbedfee 100644
--- a/libs/binder/rust/tests/ndk_rust_interop.rs
+++ b/libs/binder/rust/tests/ndk_rust_interop.rs
@@ -58,7 +58,7 @@
     let wrong_service: Result<binder::Strong<dyn IBinderRustNdkInteropTestOther>, StatusCode> =
         binder::get_interface(service_name);
     match wrong_service {
-        Err(e) if e == StatusCode::BAD_TYPE => {}
+        Err(StatusCode::BAD_TYPE) => {}
         Err(e) => {
             eprintln!("Trying to use a service via the wrong interface errored with unexpected error {:?}", e);
             return e as c_int;
diff --git a/libs/binder/rust/tests/serialization.cpp b/libs/binder/rust/tests/serialization.cpp
index 3f59dab..0cdf8c5 100644
--- a/libs/binder/rust/tests/serialization.cpp
+++ b/libs/binder/rust/tests/serialization.cpp
@@ -14,6 +14,10 @@
  * limitations under the License.
  */
 
+#include "serialization.hpp"
+#include "../../FdUtils.h"
+#include "../../tests/FileUtils.h"
+
 #include <android/binder_ibinder_platform.h>
 #include <android/binder_libbinder.h>
 #include <binder/IServiceManager.h>
@@ -24,8 +28,6 @@
 #include <gtest/gtest.h>
 #include <utils/Errors.h>
 #include <utils/String16.h>
-#include "android-base/file.h"
-#include "serialization.hpp"
 
 #include <cmath>
 #include <cstdint>
@@ -34,7 +36,7 @@
 
 using namespace std;
 using namespace android;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 using android::os::ParcelFileDescriptor;
 
 // defined in Rust
@@ -349,7 +351,7 @@
 
 TEST_F(SerializationTest, SerializeFileDescriptor) {
     unique_fd out_file, in_file;
-    ASSERT_TRUE(base::Pipe(&out_file, &in_file));
+    ASSERT_TRUE(binder::Pipe(&out_file, &in_file));
 
     vector<ParcelFileDescriptor> file_descriptors;
     file_descriptors.push_back(ParcelFileDescriptor(std::move(out_file)));
diff --git a/libs/binder/rust/tests/serialization.hpp b/libs/binder/rust/tests/serialization.hpp
index 0041608..9edcd6d 100644
--- a/libs/binder/rust/tests/serialization.hpp
+++ b/libs/binder/rust/tests/serialization.hpp
@@ -14,7 +14,10 @@
  * limitations under the License.
  */
 
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wpragma-once-outside-header"
 #pragma once
+#pragma clang diagnostic pop
 
 #include <binder/IBinder.h>
 
diff --git a/libs/binder/servicedispatcher.cpp b/libs/binder/servicedispatcher.cpp
index 8e95d69..18b178b 100644
--- a/libs/binder/servicedispatcher.cpp
+++ b/libs/binder/servicedispatcher.cpp
@@ -17,12 +17,11 @@
 #include <sysexits.h>
 #include <unistd.h>
 
+#include <filesystem>
 #include <iostream>
 
-#include <android-base/file.h>
 #include <android-base/logging.h>
 #include <android-base/properties.h>
-#include <android-base/stringprintf.h>
 #include <android/debug/BnAdbCallback.h>
 #include <android/debug/IAdbManager.h>
 #include <android/os/BnServiceManager.h>
@@ -31,6 +30,8 @@
 #include <binder/ProcessState.h>
 #include <binder/RpcServer.h>
 
+#include "file.h"
+
 using android::BBinder;
 using android::defaultServiceManager;
 using android::OK;
@@ -39,14 +40,12 @@
 using android::status_t;
 using android::statusToString;
 using android::String16;
-using android::base::Basename;
 using android::base::GetBoolProperty;
 using android::base::InitLogging;
 using android::base::LogdLogger;
 using android::base::LogId;
 using android::base::LogSeverity;
 using android::base::StdioLogger;
-using android::base::StringPrintf;
 using std::string_view_literals::operator""sv;
 
 namespace {
@@ -55,13 +54,14 @@
 using ServiceRetriever = decltype(&android::IServiceManager::checkService);
 using android::debug::IAdbManager;
 
-int Usage(const char* program) {
-    auto basename = Basename(program);
-    auto format = R"(dispatch calls to RPC service.
+int Usage(std::filesystem::path program) {
+    auto basename = program.filename();
+    // clang-format off
+    LOG(ERROR) << R"(dispatch calls to RPC service.
 Usage:
-  %s [-g] [-i <ip_address>] <service_name>
+  )" << basename << R"( [-g] [-i <ip_address>] <service_name>
     <service_name>: the service to connect to.
-  %s [-g] manager
+  )" << basename << R"( [-g] manager
     Runs an RPC-friendly service that redirects calls to servicemanager.
 
   -g: use getService() instead of checkService().
@@ -71,7 +71,7 @@
   blocks until killed.
   Otherwise, writes error message to stderr and exits with non-zero code.
 )";
-    LOG(ERROR) << StringPrintf(format, basename.c_str(), basename.c_str());
+    // clang-format on
     return EX_USAGE;
 }
 
@@ -254,7 +254,8 @@
         mLogdLogger(id, severity, tag, file, line, message);
         if (severity >= LogSeverity::WARNING) {
             std::cout << std::flush;
-            std::cerr << Basename(getprogname()) << ": " << message << std::endl;
+            auto progname = std::filesystem::path(getprogname()).filename();
+            std::cerr << progname << ": " << message << std::endl;
         }
     }
 
@@ -279,7 +280,10 @@
     while (-1 != (opt = getopt(argc, argv, "gi:"))) {
         switch (opt) {
             case 'g': {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
                 serviceRetriever = &android::IServiceManager::getService;
+#pragma clang diagnostic pop
             } break;
             case 'i': {
                 ip_address = optarg;
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index cd3e7c0..ba8fb39 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -172,6 +172,30 @@
     ],
 }
 
+cc_library_static {
+    name: "libbinder_test_utils",
+    host_supported: true,
+    vendor_available: true,
+    target: {
+        darwin: {
+            enabled: false,
+        },
+    },
+    defaults: [
+        "binder_test_defaults",
+    ],
+    shared_libs: [
+        "libbase",
+        "liblog",
+    ],
+    srcs: [
+        "FileUtils.cpp",
+    ],
+    visibility: [
+        ":__subpackages__",
+    ],
+}
+
 cc_defaults {
     name: "binderRpcTest_common_defaults",
     host_supported: true,
@@ -185,6 +209,7 @@
     ],
 
     static_libs: [
+        "libbinder_test_utils",
         "libbinder_tls_static",
         "libbinder_tls_test_utils",
         "binderRpcTestIface-cpp",
diff --git a/libs/binder/tests/FileUtils.cpp b/libs/binder/tests/FileUtils.cpp
new file mode 100644
index 0000000..61509fe
--- /dev/null
+++ b/libs/binder/tests/FileUtils.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "FileUtils.h"
+
+#ifdef BINDER_NO_LIBBASE
+
+#include <sys/stat.h>
+#include <filesystem>
+
+#if defined(__APPLE__)
+#include <mach-o/dyld.h>
+#endif
+#if defined(_WIN32)
+#include <direct.h>
+#include <windows.h>
+#endif
+
+namespace android::binder {
+
+bool ReadFdToString(borrowed_fd fd, std::string* content) {
+    content->clear();
+
+    // Although original we had small files in mind, this code gets used for
+    // very large files too, where the std::string growth heuristics might not
+    // be suitable. https://code.google.com/p/android/issues/detail?id=258500.
+    struct stat sb;
+    if (fstat(fd.get(), &sb) != -1 && sb.st_size > 0) {
+        content->reserve(sb.st_size);
+    }
+
+    char buf[4096] __attribute__((__uninitialized__));
+    ssize_t n;
+    while ((n = TEMP_FAILURE_RETRY(read(fd.get(), &buf[0], sizeof(buf)))) > 0) {
+        content->append(buf, n);
+    }
+    return (n == 0) ? true : false;
+}
+
+bool WriteStringToFd(std::string_view content, borrowed_fd fd) {
+    const char* p = content.data();
+    size_t left = content.size();
+    while (left > 0) {
+        ssize_t n = TEMP_FAILURE_RETRY(write(fd.get(), p, left));
+        if (n == -1) {
+            return false;
+        }
+        p += n;
+        left -= n;
+    }
+    return true;
+}
+
+static std::filesystem::path GetExecutablePath2() {
+#if defined(__linux__)
+    return std::filesystem::read_symlink("/proc/self/exe");
+#elif defined(__APPLE__)
+    char path[PATH_MAX + 1];
+    uint32_t path_len = sizeof(path);
+    int rc = _NSGetExecutablePath(path, &path_len);
+    if (rc < 0) {
+        std::unique_ptr<char> path_buf(new char[path_len]);
+        _NSGetExecutablePath(path_buf.get(), &path_len);
+        return path_buf.get();
+    }
+    return path;
+#elif defined(_WIN32)
+    char path[PATH_MAX + 1];
+    DWORD result = GetModuleFileName(NULL, path, sizeof(path) - 1);
+    if (result == 0 || result == sizeof(path) - 1) return "";
+    path[PATH_MAX - 1] = 0;
+    return path;
+#elif defined(__EMSCRIPTEN__)
+    abort();
+#else
+#error unknown OS
+#endif
+}
+
+std::string GetExecutableDirectory() {
+    return GetExecutablePath2().parent_path();
+}
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/tests/FileUtils.h b/libs/binder/tests/FileUtils.h
new file mode 100644
index 0000000..2cbe5e7
--- /dev/null
+++ b/libs/binder/tests/FileUtils.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "../file.h"
+
+#ifndef BINDER_NO_LIBBASE
+
+namespace android::binder {
+using android::base::GetExecutableDirectory;
+using android::base::ReadFdToString;
+using android::base::WriteStringToFd;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <binder/unique_fd.h>
+
+#include <string_view>
+
+#if !defined(_WIN32) && !defined(O_BINARY)
+/** Windows needs O_BINARY, but Unix never mangles line endings. */
+#define O_BINARY 0
+#endif
+
+namespace android::binder {
+
+bool ReadFdToString(borrowed_fd fd, std::string* content);
+bool WriteStringToFd(std::string_view content, borrowed_fd fd);
+
+std::string GetExecutableDirectory();
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/tests/binderAllocationLimits.cpp b/libs/binder/tests/binderAllocationLimits.cpp
index 6712c9c..7e0b594 100644
--- a/libs/binder/tests/binderAllocationLimits.cpp
+++ b/libs/binder/tests/binderAllocationLimits.cpp
@@ -16,6 +16,7 @@
 
 #include <android-base/logging.h>
 #include <binder/Binder.h>
+#include <binder/Functional.h>
 #include <binder/IServiceManager.h>
 #include <binder/Parcel.h>
 #include <binder/RpcServer.h>
@@ -28,6 +29,8 @@
 #include <functional>
 #include <vector>
 
+using namespace android::binder::impl;
+
 static android::String8 gEmpty(""); // make sure first allocation from optimization runs
 
 struct DestructionAction {
@@ -172,6 +175,18 @@
     a_binder->pingBinder();
 }
 
+TEST(BinderAllocation, MakeScopeGuard) {
+    const auto m = ScopeDisallowMalloc();
+    {
+        auto guard1 = make_scope_guard([] {});
+        guard1.release();
+
+        auto guard2 = make_scope_guard([&guard1, ptr = imaginary_use] {
+            if (ptr == nullptr) guard1.release();
+        });
+    }
+}
+
 TEST(BinderAllocation, InterfaceDescriptorTransaction) {
     sp<IBinder> a_binder = GetRemoteBinder();
 
diff --git a/libs/binder/tests/binderClearBufTest.cpp b/libs/binder/tests/binderClearBufTest.cpp
index 307151c..e43ee5f 100644
--- a/libs/binder/tests/binderClearBufTest.cpp
+++ b/libs/binder/tests/binderClearBufTest.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <android-base/hex.h>
 #include <android-base/logging.h>
 #include <binder/Binder.h>
 #include <binder/IBinder.h>
@@ -24,6 +23,8 @@
 #include <binder/Stability.h>
 #include <gtest/gtest.h>
 
+#include "../Utils.h"
+
 #include <sys/prctl.h>
 #include <thread>
 
@@ -68,13 +69,16 @@
             lastReply = reply.data();
             lastReplySize = reply.dataSize();
         }
-        *outBuffer = android::base::HexString(lastReply, lastReplySize);
+        *outBuffer = android::HexString(lastReply, lastReplySize);
         return result;
     }
 };
 
 TEST(BinderClearBuf, ClearKernelBuffer) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     sp<IBinder> binder = defaultServiceManager()->getService(kServerName);
+#pragma clang diagnostic pop
     ASSERT_NE(nullptr, binder);
 
     std::string replyBuffer;
diff --git a/libs/binder/tests/binderHostDeviceTest.cpp b/libs/binder/tests/binderHostDeviceTest.cpp
index 77a5fa8..0ae536c 100644
--- a/libs/binder/tests/binderHostDeviceTest.cpp
+++ b/libs/binder/tests/binderHostDeviceTest.cpp
@@ -75,7 +75,7 @@
 public:
     void SetUp() override {
         auto debuggableResult = execute(Split("adb shell getprop ro.debuggable", " "), nullptr);
-        ASSERT_THAT(debuggableResult, Ok());
+        ASSERT_TRUE(debuggableResult.has_value());
         ASSERT_EQ(0, debuggableResult->exitCode) << *debuggableResult;
         auto debuggableBool = ParseBool(Trim(debuggableResult->stdoutStr));
         ASSERT_NE(ParseBoolResult::kError, debuggableBool) << Trim(debuggableResult->stdoutStr);
@@ -84,7 +84,7 @@
         }
 
         auto lsResult = execute(Split("adb shell which servicedispatcher", " "), nullptr);
-        ASSERT_THAT(lsResult, Ok());
+        ASSERT_TRUE(lsResult.has_value());
         if (lsResult->exitCode != 0) {
             GTEST_SKIP() << "b/182914638: until feature is fully enabled, skip test on devices "
                             "without servicedispatcher";
@@ -95,7 +95,7 @@
 
         auto service = execute({"adb", "shell", kServiceBinary, kServiceName, kDescriptor},
                                &CommandResult::stdoutEndsWithNewLine);
-        ASSERT_THAT(service, Ok());
+        ASSERT_TRUE(service.has_value());
         ASSERT_EQ(std::nullopt, service->exitCode) << *service;
         mService = std::move(*service);
     }
@@ -135,7 +135,10 @@
 TEST_F(HostDeviceTest, GetService) {
     auto sm = defaultServiceManager();
 
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     auto rpcBinder = sm->getService(String16(kServiceName));
+#pragma clang diagnostic pop
     ASSERT_NE(nullptr, rpcBinder);
 
     EXPECT_THAT(rpcBinder->pingBinder(), StatusEq(OK));
diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index 0396869..cb1a1ee 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp
@@ -29,17 +29,17 @@
 
 #include <android-base/properties.h>
 #include <android-base/result-gmock.h>
-#include <android-base/result.h>
-#include <android-base/scopeguard.h>
 #include <android-base/strings.h>
-#include <android-base/unique_fd.h>
 #include <binder/Binder.h>
 #include <binder/BpBinder.h>
+#include <binder/Functional.h>
 #include <binder/IBinder.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcSession.h>
+#include <binder/unique_fd.h>
+#include <utils/Flattenable.h>
 
 #include <linux/sched.h>
 #include <sys/epoll.h>
@@ -52,10 +52,12 @@
 #define ARRAY_SIZE(array) (sizeof array / sizeof array[0])
 
 using namespace android;
+using namespace android::binder::impl;
 using namespace std::string_literals;
 using namespace std::chrono_literals;
 using android::base::testing::HasValue;
 using android::base::testing::Ok;
+using android::binder::unique_fd;
 using testing::ExplainMatchResult;
 using testing::Matcher;
 using testing::Not;
@@ -213,7 +215,10 @@
 
             sp<IServiceManager> sm = defaultServiceManager();
             //printf("%s: pid %d, get service\n", __func__, m_pid);
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
             m_server = sm->getService(binderLibTestServiceName);
+#pragma clang diagnostic pop
             ASSERT_TRUE(m_server != nullptr);
             //printf("%s: pid %d, get service done\n", __func__, m_pid);
         }
@@ -843,7 +848,7 @@
         writebuf[i] = i;
     }
 
-    android::base::unique_fd read_end, write_end;
+    unique_fd read_end, write_end;
     {
         int pipefd[2];
         ASSERT_EQ(0, pipe2(pipefd, O_NONBLOCK));
@@ -1107,6 +1112,7 @@
     status_t ret;
     data.writeInterfaceToken(binderLibTestServiceName);
     ret = m_server->transact(BINDER_LIB_TEST_GET_WORK_SOURCE_TRANSACTION, data, &reply);
+    EXPECT_EQ(NO_ERROR, ret);
 
     Parcel data2, reply2;
     status_t ret2;
@@ -1172,7 +1178,7 @@
     Parcel reply;
     EXPECT_THAT(server->transact(BINDER_LIB_TEST_GET_NON_BLOCKING_FD, {} /*data*/, &reply),
                 StatusEq(NO_ERROR));
-    base::unique_fd fd;
+    unique_fd fd;
     EXPECT_THAT(reply.readUniqueFileDescriptor(&fd), StatusEq(OK));
 
     const int result = fcntl(fd.get(), F_GETFL);
@@ -1321,7 +1327,7 @@
     ASSERT_EQ(0, ret);
 
     // Restore the original file limits when the test finishes
-    base::ScopeGuard guardUnguard([&]() { setrlimit(RLIMIT_NOFILE, &origNofile); });
+    auto guardUnguard = make_scope_guard([&]() { setrlimit(RLIMIT_NOFILE, &origNofile); });
 
     rlimit testNofile = {1024, 1024};
     ret = setrlimit(RLIMIT_NOFILE, &testNofile);
@@ -1481,7 +1487,7 @@
         BinderLibTest::SetUp();
     }
 
-    std::tuple<android::base::unique_fd, unsigned int> CreateSocket() {
+    std::tuple<unique_fd, unsigned int> CreateSocket() {
         auto rpcServer = RpcServer::make();
         EXPECT_NE(nullptr, rpcServer);
         if (rpcServer == nullptr) return {};
@@ -1548,7 +1554,7 @@
 TEST_P(BinderLibRpcTestP, SetRpcClientDebugNoFd) {
     auto binder = GetService();
     ASSERT_TRUE(binder != nullptr);
-    EXPECT_THAT(binder->setRpcClientDebug(android::base::unique_fd(), sp<BBinder>::make()),
+    EXPECT_THAT(binder->setRpcClientDebug(unique_fd(), sp<BBinder>::make()),
                 Debuggable(StatusEq(BAD_VALUE)));
 }
 
@@ -1595,9 +1601,8 @@
         }
         switch (code) {
             case BINDER_LIB_TEST_REGISTER_SERVER: {
-                int32_t id;
                 sp<IBinder> binder;
-                id = data.readInt32();
+                /*id =*/data.readInt32();
                 binder = data.readStrongBinder();
                 if (binder == nullptr) {
                     return BAD_VALUE;
@@ -1819,7 +1824,7 @@
                 int ret;
                 int32_t size;
                 const void *buf;
-                android::base::unique_fd fd;
+                unique_fd fd;
 
                 ret = data.readUniqueParcelFileDescriptor(&fd);
                 if (ret != NO_ERROR) {
@@ -1884,7 +1889,7 @@
                     ALOGE("Could not make socket non-blocking: %s", strerror(errno));
                     return UNKNOWN_ERROR;
                 }
-                base::unique_fd out(sockets[0]);
+                unique_fd out(sockets[0]);
                 status_t writeResult = reply->writeUniqueFileDescriptor(out);
                 if (writeResult != NO_ERROR) {
                     ALOGE("Could not write unique_fd");
@@ -1993,7 +1998,10 @@
         if (index == 0) {
             ret = sm->addService(binderLibTestServiceName, testService);
         } else {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
             sp<IBinder> server = sm->getService(binderLibTestServiceName);
+#pragma clang diagnostic pop
             Parcel data, reply;
             data.writeInt32(index);
             data.writeStrongBinder(testService);
diff --git a/libs/binder/tests/binderParcelUnitTest.cpp b/libs/binder/tests/binderParcelUnitTest.cpp
index 0a0dae0..34fc43f 100644
--- a/libs/binder/tests/binderParcelUnitTest.cpp
+++ b/libs/binder/tests/binderParcelUnitTest.cpp
@@ -29,8 +29,8 @@
 using android::status_t;
 using android::String16;
 using android::String8;
-using android::base::unique_fd;
 using android::binder::Status;
+using android::binder::unique_fd;
 
 TEST(Parcel, NonNullTerminatedString8) {
     String8 kTestString = String8("test-is-good");
diff --git a/libs/binder/tests/binderRecordReplayTest.cpp b/libs/binder/tests/binderRecordReplayTest.cpp
index 6773c95..73c0a94 100644
--- a/libs/binder/tests/binderRecordReplayTest.cpp
+++ b/libs/binder/tests/binderRecordReplayTest.cpp
@@ -15,15 +15,14 @@
  */
 
 #include <BnBinderRecordReplayTest.h>
-#include <android-base/file.h>
 #include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <binder/Binder.h>
 #include <binder/BpBinder.h>
 #include <binder/IBinder.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/RecordedTransaction.h>
+#include <binder/unique_fd.h>
 
 #include <fuzzbinder/libbinder_driver.h>
 #include <fuzzer/FuzzedDataProvider.h>
@@ -33,11 +32,14 @@
 
 #include <sys/prctl.h>
 
+#include "../file.h"
 #include "parcelables/SingleDataParcelable.h"
 
 using namespace android;
 using android::generateSeedsFromRecording;
+using android::binder::borrowed_fd;
 using android::binder::Status;
+using android::binder::unique_fd;
 using android::binder::debug::RecordedTransaction;
 using parcelables::SingleDataParcelable;
 
@@ -91,7 +93,7 @@
     GENERATE_GETTER_SETTER(SingleDataParcelableArray, std::vector<SingleDataParcelable>);
 };
 
-std::vector<uint8_t> retrieveData(base::borrowed_fd fd) {
+std::vector<uint8_t> retrieveData(borrowed_fd fd) {
     struct stat fdStat;
     EXPECT_TRUE(fstat(fd.get(), &fdStat) != -1);
     EXPECT_TRUE(fdStat.st_size != 0);
@@ -103,8 +105,8 @@
 }
 
 void replayFuzzService(const sp<BpBinder>& binder, const RecordedTransaction& transaction) {
-    base::unique_fd seedFd(open("/data/local/tmp/replayFuzzService",
-                                O_RDWR | O_CREAT | O_CLOEXEC | O_TRUNC, 0666));
+    unique_fd seedFd(open("/data/local/tmp/replayFuzzService",
+                          O_RDWR | O_CREAT | O_CLOEXEC | O_TRUNC, 0666));
     ASSERT_TRUE(seedFd.ok());
 
     // generate corpus from this transaction.
@@ -133,7 +135,10 @@
 public:
     void SetUp() override {
         // get the remote service
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
         auto binder = defaultServiceManager()->getService(kServerName);
+#pragma clang diagnostic pop
         ASSERT_NE(nullptr, binder);
         mInterface = interface_cast<IBinderRecordReplayTest>(binder);
         mBpBinder = binder->remoteBinder();
@@ -145,8 +150,8 @@
                       Status (IBinderRecordReplayTest::*get)(U*), U changedValue) {
         auto replayFunctions = {&replayBinder, &replayFuzzService};
         for (auto replayFunc : replayFunctions) {
-            base::unique_fd fd(open("/data/local/tmp/binderRecordReplayTest.rec",
-                                    O_RDWR | O_CREAT | O_CLOEXEC, 0666));
+            unique_fd fd(open("/data/local/tmp/binderRecordReplayTest.rec",
+                              O_RDWR | O_CREAT | O_CLOEXEC, 0666));
             ASSERT_TRUE(fd.ok());
 
             // record a transaction
diff --git a/libs/binder/tests/binderRecordedTransactionTest.cpp b/libs/binder/tests/binderRecordedTransactionTest.cpp
index 30172cc..6eb78d0 100644
--- a/libs/binder/tests/binderRecordedTransactionTest.cpp
+++ b/libs/binder/tests/binderRecordedTransactionTest.cpp
@@ -20,7 +20,7 @@
 
 using android::Parcel;
 using android::status_t;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 using android::binder::debug::RecordedTransaction;
 
 TEST(BinderRecordedTransaction, RoundTripEncoding) {
diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 4c3c68e..2769a88 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp
@@ -14,8 +14,10 @@
  * limitations under the License.
  */
 
+#ifndef __ANDROID_VENDOR__
+// only used on NDK tests outside of vendor
 #include <aidl/IBinderRpcTest.h>
-#include <android-base/stringprintf.h>
+#endif
 
 #include <chrono>
 #include <cstdlib>
@@ -23,6 +25,7 @@
 #include <thread>
 #include <type_traits>
 
+#include <dirent.h>
 #include <dlfcn.h>
 #include <poll.h>
 #include <sys/prctl.h>
@@ -33,11 +36,16 @@
 #include <trusty/tipc.h>
 #endif // BINDER_RPC_TO_TRUSTY_TEST
 
+#include "../Utils.h"
 #include "binderRpcTestCommon.h"
 #include "binderRpcTestFixture.h"
 
 using namespace std::chrono_literals;
 using namespace std::placeholders;
+using android::binder::borrowed_fd;
+using android::binder::GetExecutableDirectory;
+using android::binder::ReadFdToString;
+using android::binder::unique_fd;
 using testing::AssertionFailure;
 using testing::AssertionResult;
 using testing::AssertionSuccess;
@@ -56,12 +64,12 @@
 
 static std::string WaitStatusToString(int wstatus) {
     if (WIFEXITED(wstatus)) {
-        return base::StringPrintf("exit status %d", WEXITSTATUS(wstatus));
+        return std::format("exit status {}", WEXITSTATUS(wstatus));
     }
     if (WIFSIGNALED(wstatus)) {
-        return base::StringPrintf("term signal %d", WTERMSIG(wstatus));
+        return std::format("term signal {}", WTERMSIG(wstatus));
     }
-    return base::StringPrintf("unexpected state %d", wstatus);
+    return std::format("unexpected state {}", wstatus);
 }
 
 static void debugBacktrace(pid_t pid) {
@@ -80,12 +88,11 @@
         mPid = other.mPid;
         other.mPid = 0;
     }
-    Process(const std::function<void(android::base::borrowed_fd /* writeEnd */,
-                                     android::base::borrowed_fd /* readEnd */)>& f) {
-        android::base::unique_fd childWriteEnd;
-        android::base::unique_fd childReadEnd;
-        CHECK(android::base::Pipe(&mReadEnd, &childWriteEnd, 0)) << strerror(errno);
-        CHECK(android::base::Pipe(&childReadEnd, &mWriteEnd, 0)) << strerror(errno);
+    Process(const std::function<void(borrowed_fd /* writeEnd */, borrowed_fd /* readEnd */)>& f) {
+        unique_fd childWriteEnd;
+        unique_fd childReadEnd;
+        if (!binder::Pipe(&mReadEnd, &childWriteEnd, 0)) PLOGF("child write pipe failed");
+        if (!binder::Pipe(&childReadEnd, &mWriteEnd, 0)) PLOGF("child read pipe failed");
         if (0 == (mPid = fork())) {
             // racey: assume parent doesn't crash before this is set
             prctl(PR_SET_PDEATHSIG, SIGHUP);
@@ -107,8 +114,8 @@
             }
         }
     }
-    android::base::borrowed_fd readEnd() { return mReadEnd; }
-    android::base::borrowed_fd writeEnd() { return mWriteEnd; }
+    borrowed_fd readEnd() { return mReadEnd; }
+    borrowed_fd writeEnd() { return mWriteEnd; }
 
     void setCustomExitStatusCheck(std::function<void(int wstatus)> f) {
         mCustomExitStatusCheck = std::move(f);
@@ -122,8 +129,8 @@
 private:
     std::function<void(int wstatus)> mCustomExitStatusCheck;
     pid_t mPid = 0;
-    android::base::unique_fd mReadEnd;
-    android::base::unique_fd mWriteEnd;
+    unique_fd mReadEnd;
+    unique_fd mWriteEnd;
 };
 
 static std::string allocateSocketAddress() {
@@ -139,12 +146,13 @@
     return vsockPort++;
 }
 
-static base::unique_fd initUnixSocket(std::string addr) {
+static unique_fd initUnixSocket(std::string addr) {
     auto socket_addr = UnixSocketAddress(addr.c_str());
-    base::unique_fd fd(
-            TEMP_FAILURE_RETRY(socket(socket_addr.addr()->sa_family, SOCK_STREAM, AF_UNIX)));
-    CHECK(fd.ok());
-    CHECK_EQ(0, TEMP_FAILURE_RETRY(bind(fd.get(), socket_addr.addr(), socket_addr.addrSize())));
+    unique_fd fd(TEMP_FAILURE_RETRY(socket(socket_addr.addr()->sa_family, SOCK_STREAM, AF_UNIX)));
+    if (!fd.ok()) PLOGF("initUnixSocket failed to create socket");
+    if (0 != TEMP_FAILURE_RETRY(bind(fd.get(), socket_addr.addr(), socket_addr.addrSize()))) {
+        PLOGF("initUnixSocket failed to bind");
+    }
     return fd;
 }
 
@@ -199,37 +207,33 @@
     void terminate() override { host.terminate(); }
 };
 
-static base::unique_fd connectTo(const RpcSocketAddress& addr) {
-    base::unique_fd serverFd(
+static unique_fd connectTo(const RpcSocketAddress& addr) {
+    unique_fd serverFd(
             TEMP_FAILURE_RETRY(socket(addr.addr()->sa_family, SOCK_STREAM | SOCK_CLOEXEC, 0)));
-    int savedErrno = errno;
-    CHECK(serverFd.ok()) << "Could not create socket " << addr.toString() << ": "
-                         << strerror(savedErrno);
+    if (!serverFd.ok()) {
+        PLOGF("Could not create socket %s", addr.toString().c_str());
+    }
 
     if (0 != TEMP_FAILURE_RETRY(connect(serverFd.get(), addr.addr(), addr.addrSize()))) {
-        int savedErrno = errno;
-        LOG(FATAL) << "Could not connect to socket " << addr.toString() << ": "
-                   << strerror(savedErrno);
+        PLOGF("Could not connect to socket %s", addr.toString().c_str());
     }
     return serverFd;
 }
 
 #ifndef BINDER_RPC_TO_TRUSTY_TEST
-static base::unique_fd connectToUnixBootstrap(const RpcTransportFd& transportFd) {
-    base::unique_fd sockClient, sockServer;
-    if (!base::Socketpair(SOCK_STREAM, &sockClient, &sockServer)) {
-        int savedErrno = errno;
-        LOG(FATAL) << "Failed socketpair(): " << strerror(savedErrno);
+static unique_fd connectToUnixBootstrap(const RpcTransportFd& transportFd) {
+    unique_fd sockClient, sockServer;
+    if (!binder::Socketpair(SOCK_STREAM, &sockClient, &sockServer)) {
+        PLOGF("Failed socketpair()");
     }
 
     int zero = 0;
     iovec iov{&zero, sizeof(zero)};
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> fds;
     fds.emplace_back(std::move(sockServer));
 
-    if (sendMessageOnSocket(transportFd, &iov, 1, &fds) < 0) {
-        int savedErrno = errno;
-        LOG(FATAL) << "Failed sendMessageOnSocket: " << strerror(savedErrno);
+    if (binder::os::sendMessageOnSocket(transportFd, &iov, 1, &fds) < 0) {
+        PLOGF("Failed sendMessageOnSocket");
     }
     return std::move(sockClient);
 }
@@ -243,10 +247,12 @@
 // threads.
 std::unique_ptr<ProcessSession> BinderRpc::createRpcTestSocketServerProcessEtc(
         const BinderRpcOptions& options) {
-    CHECK_GE(options.numSessions, 1) << "Must have at least one session to a server";
+    LOG_ALWAYS_FATAL_IF(options.numSessions < 1, "Must have at least one session to a server");
 
     if (options.numIncomingConnectionsBySession.size() != 0) {
-        CHECK_EQ(options.numIncomingConnectionsBySession.size(), options.numSessions);
+        LOG_ALWAYS_FATAL_IF(options.numIncomingConnectionsBySession.size() != options.numSessions,
+                            "%s: %zu != %zu", __func__,
+                            options.numIncomingConnectionsBySession.size(), options.numSessions);
     }
 
     SocketType socketType = GetParam().type;
@@ -256,12 +262,12 @@
     bool singleThreaded = GetParam().singleThreaded;
     bool noKernel = GetParam().noKernel;
 
-    std::string path = android::base::GetExecutableDirectory();
-    auto servicePath = android::base::StringPrintf("%s/binder_rpc_test_service%s%s", path.c_str(),
-                                                   singleThreaded ? "_single_threaded" : "",
-                                                   noKernel ? "_no_kernel" : "");
+    std::string path = GetExecutableDirectory();
+    auto servicePath =
+            std::format("{}/binder_rpc_test_service{}{}", path,
+                        singleThreaded ? "_single_threaded" : "", noKernel ? "_no_kernel" : "");
 
-    base::unique_fd bootstrapClientFd, socketFd;
+    unique_fd bootstrapClientFd, socketFd;
 
     auto addr = allocateSocketAddress();
     // Initializes the socket before the fork/exec.
@@ -270,14 +276,13 @@
     } else if (socketType == SocketType::UNIX_BOOTSTRAP) {
         // Do not set O_CLOEXEC, bootstrapServerFd needs to survive fork/exec.
         // This is because we cannot pass ParcelFileDescriptor over a pipe.
-        if (!base::Socketpair(SOCK_STREAM, &bootstrapClientFd, &socketFd)) {
-            int savedErrno = errno;
-            LOG(FATAL) << "Failed socketpair(): " << strerror(savedErrno);
+        if (!binder::Socketpair(SOCK_STREAM, &bootstrapClientFd, &socketFd)) {
+            PLOGF("Failed socketpair()");
         }
     }
 
     auto ret = std::make_unique<LinuxProcessSession>(
-            Process([=](android::base::borrowed_fd writeEnd, android::base::borrowed_fd readEnd) {
+            Process([=](borrowed_fd writeEnd, borrowed_fd readEnd) {
                 if (socketType == SocketType::TIPC) {
                     // Trusty has a single persistent service
                     return;
@@ -285,8 +290,10 @@
 
                 auto writeFd = std::to_string(writeEnd.get());
                 auto readFd = std::to_string(readEnd.get());
-                execl(servicePath.c_str(), servicePath.c_str(), writeFd.c_str(), readFd.c_str(),
-                      NULL);
+                auto status = execl(servicePath.c_str(), servicePath.c_str(), writeFd.c_str(),
+                                    readFd.c_str(), NULL);
+                PLOGF("execl('%s', _, %s, %s) should not return at all, but it returned %d",
+                      servicePath.c_str(), writeFd.c_str(), readFd.c_str(), status);
             }));
 
     BinderRpcTestServerConfig serverConfig;
@@ -331,16 +338,16 @@
         }
         writeToFd(ret->host.writeEnd(), clientInfo);
 
-        CHECK_LE(serverInfo.port, std::numeric_limits<unsigned int>::max());
+        LOG_ALWAYS_FATAL_IF(serverInfo.port > std::numeric_limits<unsigned int>::max());
         if (socketType == SocketType::INET) {
-            CHECK_NE(0, serverInfo.port);
+            LOG_ALWAYS_FATAL_IF(0 == serverInfo.port);
         }
 
         if (rpcSecurity == RpcSecurity::TLS) {
             const auto& serverCert = serverInfo.cert.data;
-            CHECK_EQ(OK,
-                     certVerifier->addTrustedPeerCertificate(RpcCertificateFormat::PEM,
-                                                             serverCert));
+            LOG_ALWAYS_FATAL_IF(
+                    OK !=
+                    certVerifier->addTrustedPeerCertificate(RpcCertificateFormat::PEM, serverCert));
         }
     }
 
@@ -353,7 +360,7 @@
                 ? options.numIncomingConnectionsBySession.at(i)
                 : 0;
 
-        CHECK(session->setProtocolVersion(clientVersion));
+        LOG_ALWAYS_FATAL_IF(!session->setProtocolVersion(clientVersion));
         session->setMaxIncomingThreads(numIncoming);
         session->setMaxOutgoingConnections(options.numOutgoingConnections);
         session->setFileDescriptorTransportMode(options.clientFileDescriptorTransportMode);
@@ -370,7 +377,7 @@
                 break;
             case SocketType::UNIX_BOOTSTRAP:
                 status = session->setupUnixDomainSocketBootstrapClient(
-                        base::unique_fd(dup(bootstrapClientFd.get())));
+                        unique_fd(dup(bootstrapClientFd.get())));
                 break;
             case SocketType::VSOCK:
                 status = session->setupVsockClient(VMADDR_CID_LOCAL, serverConfig.vsockPort);
@@ -387,14 +394,14 @@
                         // in case the service is slow to start
                         int tipcFd = tipc_connect(kTrustyIpcDevice, port.c_str());
                         if (tipcFd >= 0) {
-                            return android::base::unique_fd(tipcFd);
+                            return unique_fd(tipcFd);
                         }
                         usleep(50000);
                     }
-                    return android::base::unique_fd();
+                    return unique_fd();
 #else
                     LOG_ALWAYS_FATAL("Tried to connect to Trusty outside of vendor");
-                    return android::base::unique_fd();
+                    return unique_fd();
 #endif
                 });
                 break;
@@ -405,7 +412,7 @@
             ret->sessions.clear();
             break;
         }
-        CHECK_EQ(status, OK) << "Could not connect: " << statusToString(status);
+        LOG_ALWAYS_FATAL_IF(status != OK, "Could not connect: %s", statusToString(status).c_str());
         ret->sessions.push_back({session, session->getRootObject()});
     }
     return ret;
@@ -586,12 +593,12 @@
     android::os::ParcelFileDescriptor fdA;
     EXPECT_OK(proc.rootIface->blockingRecvFd(&fdA));
     std::string result;
-    CHECK(android::base::ReadFdToString(fdA.get(), &result));
+    ASSERT_TRUE(ReadFdToString(fdA.get(), &result));
     EXPECT_EQ(result, "a");
 
     android::os::ParcelFileDescriptor fdB;
     EXPECT_OK(proc.rootIface->blockingRecvFd(&fdB));
-    CHECK(android::base::ReadFdToString(fdB.get(), &result));
+    ASSERT_TRUE(ReadFdToString(fdB.get(), &result));
     EXPECT_EQ(result, "b");
 
     saturateThreadPool(kNumServerThreads, proc.rootIface);
@@ -948,8 +955,8 @@
     ASSERT_TRUE(status.isOk()) << status;
 
     std::string result;
-    CHECK(android::base::ReadFdToString(out.get(), &result));
-    EXPECT_EQ(result, "hello");
+    ASSERT_TRUE(ReadFdToString(out.get(), &result));
+    ASSERT_EQ(result, "hello");
 }
 
 TEST_P(BinderRpc, SendFiles) {
@@ -978,7 +985,7 @@
     ASSERT_TRUE(status.isOk()) << status;
 
     std::string result;
-    CHECK(android::base::ReadFdToString(out.get(), &result));
+    EXPECT_TRUE(ReadFdToString(out.get(), &result));
     EXPECT_EQ(result, "123abcd");
 }
 
@@ -1003,7 +1010,7 @@
     ASSERT_TRUE(status.isOk()) << status;
 
     std::string result;
-    CHECK(android::base::ReadFdToString(out.get(), &result));
+    EXPECT_TRUE(ReadFdToString(out.get(), &result));
     EXPECT_EQ(result, std::string(253, 'a'));
 }
 
@@ -1148,14 +1155,14 @@
     // We don't need to enable TLS to know if vsock is supported.
     unsigned int vsockPort = allocateVsockPort();
 
-    android::base::unique_fd serverFd(
+    unique_fd serverFd(
             TEMP_FAILURE_RETRY(socket(AF_VSOCK, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0)));
 
     if (errno == EAFNOSUPPORT) {
         return false;
     }
 
-    LOG_ALWAYS_FATAL_IF(serverFd == -1, "Could not create socket: %s", strerror(errno));
+    LOG_ALWAYS_FATAL_IF(!serverFd.ok(), "Could not create socket: %s", strerror(errno));
 
     sockaddr_vm serverAddr{
             .svm_family = AF_VSOCK,
@@ -1175,9 +1182,9 @@
     // to see if the kernel supports it. It's safe to use a blocking
     // connect because vsock sockets have a 2 second connection timeout,
     // and they return ETIMEDOUT after that.
-    android::base::unique_fd connectFd(
+    unique_fd connectFd(
             TEMP_FAILURE_RETRY(socket(AF_VSOCK, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0)));
-    LOG_ALWAYS_FATAL_IF(connectFd == -1, "Could not create socket for port %u: %s", vsockPort,
+    LOG_ALWAYS_FATAL_IF(!connectFd.ok(), "Could not create socket for port %u: %s", vsockPort,
                         strerror(errno));
 
     bool success = false;
@@ -1189,13 +1196,13 @@
     ret = TEMP_FAILURE_RETRY(connect(connectFd.get(), reinterpret_cast<sockaddr*>(&connectAddr),
                                      sizeof(connectAddr)));
     if (ret != 0 && (errno == EAGAIN || errno == EINPROGRESS)) {
-        android::base::unique_fd acceptFd;
+        unique_fd acceptFd;
         while (true) {
             pollfd pfd[]{
                     {.fd = serverFd.get(), .events = POLLIN, .revents = 0},
                     {.fd = connectFd.get(), .events = POLLOUT, .revents = 0},
             };
-            ret = TEMP_FAILURE_RETRY(poll(pfd, arraysize(pfd), -1));
+            ret = TEMP_FAILURE_RETRY(poll(pfd, countof(pfd), -1));
             LOG_ALWAYS_FATAL_IF(ret < 0, "Error polling: %s", strerror(errno));
 
             if (pfd[0].revents & POLLIN) {
@@ -1356,7 +1363,11 @@
 };
 
 TEST(BinderRpc, Java) {
-#if !defined(__ANDROID__)
+    bool expectDebuggable = false;
+#if defined(__ANDROID__)
+    expectDebuggable = android::base::GetBoolProperty("ro.debuggable", false) &&
+            android::base::GetProperty("ro.build.type", "") != "user";
+#else
     GTEST_SKIP() << "This test is only run on Android. Though it can technically run on host on"
                     "createRpcDelegateServiceManager() with a device attached, such test belongs "
                     "to binderHostDeviceTest. Hence, just disable this test on host.";
@@ -1384,8 +1395,7 @@
     auto keepAlive = sp<BBinder>::make();
     auto setRpcClientDebugStatus = binder->setRpcClientDebug(std::move(socket), keepAlive);
 
-    if (!android::base::GetBoolProperty("ro.debuggable", false) ||
-        android::base::GetProperty("ro.build.type", "") == "user") {
+    if (!expectDebuggable) {
         ASSERT_EQ(INVALID_OPERATION, setRpcClientDebugStatus)
                 << "setRpcClientDebug should return INVALID_OPERATION on non-debuggable or user "
                    "builds, but get "
@@ -1416,14 +1426,14 @@
 };
 
 TEST_P(BinderRpcServerOnly, SetExternalServerTest) {
-    base::unique_fd sink(TEMP_FAILURE_RETRY(open("/dev/null", O_RDWR)));
+    unique_fd sink(TEMP_FAILURE_RETRY(open("/dev/null", O_RDWR)));
     int sinkFd = sink.get();
     auto server = RpcServer::make(newTlsFactory(std::get<0>(GetParam())));
     ASSERT_TRUE(server->setProtocolVersion(std::get<1>(GetParam())));
     ASSERT_FALSE(server->hasServer());
     ASSERT_EQ(OK, server->setupExternalServer(std::move(sink)));
     ASSERT_TRUE(server->hasServer());
-    base::unique_fd retrieved = server->releaseServer();
+    unique_fd retrieved = server->releaseServer();
     ASSERT_FALSE(server->hasServer());
     ASSERT_EQ(sinkFd, retrieved.get());
 }
@@ -1469,12 +1479,12 @@
     // in the client half of the tests.
     using Param =
             std::tuple<SocketType, RpcSecurity, std::optional<RpcCertificateFormat>, uint32_t>;
-    using ConnectToServer = std::function<base::unique_fd()>;
+    using ConnectToServer = std::function<unique_fd()>;
 
     // A server that handles client socket connections.
     class Server {
     public:
-        using AcceptConnection = std::function<base::unique_fd(Server*)>;
+        using AcceptConnection = std::function<unique_fd(Server*)>;
 
         explicit Server() {}
         Server(Server&&) = default;
@@ -1503,8 +1513,8 @@
                     };
                 } break;
                 case SocketType::UNIX_BOOTSTRAP: {
-                    base::unique_fd bootstrapFdClient, bootstrapFdServer;
-                    if (!base::Socketpair(SOCK_STREAM, &bootstrapFdClient, &bootstrapFdServer)) {
+                    unique_fd bootstrapFdClient, bootstrapFdServer;
+                    if (!binder::Socketpair(SOCK_STREAM, &bootstrapFdClient, &bootstrapFdServer)) {
                         return AssertionFailure() << "Socketpair() failed";
                     }
                     auto status = rpcServer->setupUnixDomainSocketBootstrapServer(
@@ -1547,7 +1557,7 @@
                     mConnectToServer = [port] {
                         const char* addr = kLocalInetAddress;
                         auto aiStart = InetSocketAddress::getAddrInfo(addr, port);
-                        if (aiStart == nullptr) return base::unique_fd{};
+                        if (aiStart == nullptr) return unique_fd{};
                         for (auto ai = aiStart.get(); ai != nullptr; ai = ai->ai_next) {
                             auto fd = connectTo(
                                     InetSocketAddress(ai->ai_addr, ai->ai_addrlen, addr, port));
@@ -1555,7 +1565,7 @@
                         }
                         ALOGE("None of the socket address resolved for %s:%u can be connected",
                               addr, port);
-                        return base::unique_fd{};
+                        return unique_fd{};
                     };
                 } break;
                 case SocketType::TIPC: {
@@ -1579,24 +1589,22 @@
             mThread = std::make_unique<std::thread>(&Server::run, this);
         }
 
-        base::unique_fd acceptServerConnection() {
-            return base::unique_fd(TEMP_FAILURE_RETRY(
+        unique_fd acceptServerConnection() {
+            return unique_fd(TEMP_FAILURE_RETRY(
                     accept4(mFd.fd.get(), nullptr, nullptr, SOCK_CLOEXEC | SOCK_NONBLOCK)));
         }
 
-        base::unique_fd recvmsgServerConnection() {
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+        unique_fd recvmsgServerConnection() {
+            std::vector<std::variant<unique_fd, borrowed_fd>> fds;
             int buf;
             iovec iov{&buf, sizeof(buf)};
 
-            if (receiveMessageFromSocket(mFd, &iov, 1, &fds) < 0) {
-                int savedErrno = errno;
-                LOG(FATAL) << "Failed receiveMessage: " << strerror(savedErrno);
+            if (binder::os::receiveMessageFromSocket(mFd, &iov, 1, &fds) < 0) {
+                PLOGF("Failed receiveMessage");
             }
-            if (fds.size() != 1) {
-                LOG(FATAL) << "Expected one FD from receiveMessage(), got " << fds.size();
-            }
-            return std::move(std::get<base::unique_fd>(fds[0]));
+            LOG_ALWAYS_FATAL_IF(fds.size() != 1, "Expected one FD from receiveMessage(), got %zu",
+                                fds.size());
+            return std::move(std::get<unique_fd>(fds[0]));
         }
 
         void run() {
@@ -1604,13 +1612,13 @@
 
             std::vector<std::thread> threads;
             while (OK == mFdTrigger->triggerablePoll(mFd, POLLIN)) {
-                base::unique_fd acceptedFd = mAcceptConnection(this);
+                unique_fd acceptedFd = mAcceptConnection(this);
                 threads.emplace_back(&Server::handleOne, this, std::move(acceptedFd));
             }
 
             for (auto& thread : threads) thread.join();
         }
-        void handleOne(android::base::unique_fd acceptedFd) {
+        void handleOne(unique_fd acceptedFd) {
             ASSERT_TRUE(acceptedFd.ok());
             RpcTransportFd transportFd(std::move(acceptedFd));
             auto serverTransport = mCtx->newTransport(std::move(transportFd), mFdTrigger.get());
@@ -2080,7 +2088,7 @@
 
 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
-    android::base::InitLogging(argv, android::base::StderrLogger, android::base::DefaultAborter);
+    __android_log_set_logger(__android_log_stderr_logger);
 
     return RUN_ALL_TESTS();
 }
diff --git a/libs/binder/tests/binderRpcTestCommon.h b/libs/binder/tests/binderRpcTestCommon.h
index c1364dd..a55edd2 100644
--- a/libs/binder/tests/binderRpcTestCommon.h
+++ b/libs/binder/tests/binderRpcTestCommon.h
@@ -22,7 +22,6 @@
 #include <BnBinderRpcCallback.h>
 #include <BnBinderRpcSession.h>
 #include <BnBinderRpcTest.h>
-#include <android-base/stringprintf.h>
 #include <binder/Binder.h>
 #include <binder/BpBinder.h>
 #include <binder/IPCThreadState.h>
@@ -37,10 +36,11 @@
 #include <string>
 #include <vector>
 
-#ifndef __TRUSTY__
-#include <android-base/file.h>
-#include <android-base/logging.h>
+#ifdef __ANDROID__
 #include <android-base/properties.h>
+#endif
+
+#ifndef __TRUSTY__
 #include <android/binder_auto_utils.h>
 #include <android/binder_libbinder.h>
 #include <binder/ProcessState.h>
@@ -57,7 +57,10 @@
 
 #include "../BuildFlags.h"
 #include "../FdTrigger.h"
+#include "../FdUtils.h"
 #include "../RpcState.h" // for debugging
+#include "FileUtils.h"
+#include "format.h"
 #include "utils/Errors.h"
 
 namespace android {
@@ -70,17 +73,27 @@
     return {RpcSecurity::RAW, RpcSecurity::TLS};
 }
 
+static inline bool hasExperimentalRpc() {
+#ifdef __ANDROID__
+    return base::GetProperty("ro.build.version.codename", "") != "REL";
+#else
+    return false;
+#endif
+}
+
 static inline std::vector<uint32_t> testVersions() {
     std::vector<uint32_t> versions;
     for (size_t i = 0; i < RPC_WIRE_PROTOCOL_VERSION_NEXT; i++) {
         versions.push_back(i);
     }
-    versions.push_back(RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL);
+    if (hasExperimentalRpc()) {
+        versions.push_back(RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL);
+    }
     return versions;
 }
 
 static inline std::string trustyIpcPort(uint32_t serverVersion) {
-    return base::StringPrintf("com.android.trusty.binderRpcTestService.V%" PRIu32, serverVersion);
+    return std::format("com.android.trusty.binderRpcTestService.V{}", serverVersion);
 }
 
 enum class SocketType {
@@ -144,33 +157,34 @@
 };
 
 #ifndef __TRUSTY__
-static inline void writeString(android::base::borrowed_fd fd, std::string_view str) {
+static inline void writeString(binder::borrowed_fd fd, std::string_view str) {
     uint64_t length = str.length();
-    CHECK(android::base::WriteFully(fd, &length, sizeof(length)));
-    CHECK(android::base::WriteFully(fd, str.data(), str.length()));
+    LOG_ALWAYS_FATAL_IF(!android::binder::WriteFully(fd, &length, sizeof(length)));
+    LOG_ALWAYS_FATAL_IF(!android::binder::WriteFully(fd, str.data(), str.length()));
 }
 
-static inline std::string readString(android::base::borrowed_fd fd) {
+static inline std::string readString(binder::borrowed_fd fd) {
     uint64_t length;
-    CHECK(android::base::ReadFully(fd, &length, sizeof(length)));
+    LOG_ALWAYS_FATAL_IF(!android::binder::ReadFully(fd, &length, sizeof(length)));
     std::string ret(length, '\0');
-    CHECK(android::base::ReadFully(fd, ret.data(), length));
+    LOG_ALWAYS_FATAL_IF(!android::binder::ReadFully(fd, ret.data(), length));
     return ret;
 }
 
-static inline void writeToFd(android::base::borrowed_fd fd, const Parcelable& parcelable) {
+static inline void writeToFd(binder::borrowed_fd fd, const Parcelable& parcelable) {
     Parcel parcel;
-    CHECK_EQ(OK, parcelable.writeToParcel(&parcel));
+    LOG_ALWAYS_FATAL_IF(OK != parcelable.writeToParcel(&parcel));
     writeString(fd, std::string(reinterpret_cast<const char*>(parcel.data()), parcel.dataSize()));
 }
 
 template <typename T>
-static inline T readFromFd(android::base::borrowed_fd fd) {
+static inline T readFromFd(binder::borrowed_fd fd) {
     std::string data = readString(fd);
     Parcel parcel;
-    CHECK_EQ(OK, parcel.setData(reinterpret_cast<const uint8_t*>(data.data()), data.size()));
+    LOG_ALWAYS_FATAL_IF(OK !=
+                        parcel.setData(reinterpret_cast<const uint8_t*>(data.data()), data.size()));
     T object;
-    CHECK_EQ(OK, object.readFromParcel(&parcel));
+    LOG_ALWAYS_FATAL_IF(OK != object.readFromParcel(&parcel));
     return object;
 }
 
@@ -195,12 +209,12 @@
 }
 
 // Create an FD that returns `contents` when read.
-static inline base::unique_fd mockFileDescriptor(std::string contents) {
-    android::base::unique_fd readFd, writeFd;
-    CHECK(android::base::Pipe(&readFd, &writeFd)) << strerror(errno);
+static inline binder::unique_fd mockFileDescriptor(std::string contents) {
+    binder::unique_fd readFd, writeFd;
+    LOG_ALWAYS_FATAL_IF(!binder::Pipe(&readFd, &writeFd), "%s", strerror(errno));
     RpcMaybeThread([writeFd = std::move(writeFd), contents = std::move(contents)]() {
         signal(SIGPIPE, SIG_IGN); // ignore possible SIGPIPE from the write
-        if (!WriteStringToFd(contents, writeFd)) {
+        if (!android::binder::WriteStringToFd(contents, writeFd)) {
             int savedErrno = errno;
             LOG_ALWAYS_FATAL_IF(EPIPE != savedErrno, "mockFileDescriptor write failed: %s",
                                 strerror(savedErrno));
diff --git a/libs/binder/tests/binderRpcTestService.cpp b/libs/binder/tests/binderRpcTestService.cpp
index 7435f30..28125f1 100644
--- a/libs/binder/tests/binderRpcTestService.cpp
+++ b/libs/binder/tests/binderRpcTestService.cpp
@@ -17,6 +17,8 @@
 #include "binderRpcTestCommon.h"
 
 using namespace android;
+using android::binder::ReadFdToString;
+using android::binder::unique_fd;
 
 class MyBinderRpcTestAndroid : public MyBinderRpcTestBase {
 public:
@@ -65,17 +67,17 @@
         std::string acc;
         for (const auto& file : files) {
             std::string result;
-            CHECK(android::base::ReadFdToString(file.get(), &result));
+            LOG_ALWAYS_FATAL_IF(!ReadFdToString(file.get(), &result));
             acc.append(result);
         }
         out->reset(mockFileDescriptor(acc));
         return Status::ok();
     }
 
-    HandoffChannel<android::base::unique_fd> mFdChannel;
+    HandoffChannel<unique_fd> mFdChannel;
 
     Status blockingSendFdOneway(const android::os::ParcelFileDescriptor& fd) override {
-        mFdChannel.write(android::base::unique_fd(fcntl(fd.get(), F_DUPFD_CLOEXEC, 0)));
+        mFdChannel.write(unique_fd(fcntl(fd.get(), F_DUPFD_CLOEXEC, 0)));
         return Status::ok();
     }
 
@@ -98,11 +100,11 @@
 };
 
 int main(int argc, char* argv[]) {
-    android::base::InitLogging(argv, android::base::StderrLogger, android::base::DefaultAborter);
+    __android_log_set_logger(__android_log_stderr_logger);
 
     LOG_ALWAYS_FATAL_IF(argc != 3, "Invalid number of arguments: %d", argc);
-    base::unique_fd writeEnd(atoi(argv[1]));
-    base::unique_fd readEnd(atoi(argv[2]));
+    unique_fd writeEnd(atoi(argv[1]));
+    unique_fd readEnd(atoi(argv[2]));
 
     auto serverConfig = readFromFd<BinderRpcTestServerConfig>(readEnd);
     auto socketType = static_cast<SocketType>(serverConfig.socketType);
@@ -118,33 +120,36 @@
     auto certVerifier = std::make_shared<RpcCertificateVerifierSimple>();
     sp<RpcServer> server = RpcServer::make(newTlsFactory(rpcSecurity, certVerifier));
 
-    CHECK(server->setProtocolVersion(serverConfig.serverVersion));
+    LOG_ALWAYS_FATAL_IF(!server->setProtocolVersion(serverConfig.serverVersion));
     server->setMaxThreads(serverConfig.numThreads);
     server->setSupportedFileDescriptorTransportModes(serverSupportedFileDescriptorTransportModes);
 
     unsigned int outPort = 0;
-    base::unique_fd socketFd(serverConfig.socketFd);
+    unique_fd socketFd(serverConfig.socketFd);
 
     switch (socketType) {
         case SocketType::PRECONNECTED:
             [[fallthrough]];
         case SocketType::UNIX:
-            CHECK_EQ(OK, server->setupUnixDomainServer(serverConfig.addr.c_str()))
-                    << serverConfig.addr;
+            LOG_ALWAYS_FATAL_IF(OK != server->setupUnixDomainServer(serverConfig.addr.c_str()),
+                                "%s", serverConfig.addr.c_str());
             break;
         case SocketType::UNIX_BOOTSTRAP:
-            CHECK_EQ(OK, server->setupUnixDomainSocketBootstrapServer(std::move(socketFd)));
+            LOG_ALWAYS_FATAL_IF(OK !=
+                                server->setupUnixDomainSocketBootstrapServer(std::move(socketFd)));
             break;
         case SocketType::UNIX_RAW:
-            CHECK_EQ(OK, server->setupRawSocketServer(std::move(socketFd)));
+            LOG_ALWAYS_FATAL_IF(OK != server->setupRawSocketServer(std::move(socketFd)));
             break;
         case SocketType::VSOCK:
-            CHECK_EQ(OK, server->setupVsockServer(VMADDR_CID_LOCAL, serverConfig.vsockPort))
-                    << "Need `sudo modprobe vsock_loopback`?";
+            LOG_ALWAYS_FATAL_IF(OK !=
+                                        server->setupVsockServer(VMADDR_CID_LOCAL,
+                                                                 serverConfig.vsockPort),
+                                "Need `sudo modprobe vsock_loopback`?");
             break;
         case SocketType::INET: {
-            CHECK_EQ(OK, server->setupInetServer(kLocalInetAddress, 0, &outPort));
-            CHECK_NE(0, outPort);
+            LOG_ALWAYS_FATAL_IF(OK != server->setupInetServer(kLocalInetAddress, 0, &outPort));
+            LOG_ALWAYS_FATAL_IF(0 == outPort);
             break;
         }
         default:
@@ -159,21 +164,21 @@
 
     if (rpcSecurity == RpcSecurity::TLS) {
         for (const auto& clientCert : clientInfo.certs) {
-            CHECK_EQ(OK,
-                     certVerifier->addTrustedPeerCertificate(RpcCertificateFormat::PEM,
-                                                             clientCert.data));
+            LOG_ALWAYS_FATAL_IF(OK !=
+                                certVerifier->addTrustedPeerCertificate(RpcCertificateFormat::PEM,
+                                                                        clientCert.data));
         }
     }
 
     server->setPerSessionRootObject([&](wp<RpcSession> session, const void* addrPtr, size_t len) {
         {
             sp<RpcSession> spSession = session.promote();
-            CHECK_NE(nullptr, spSession.get());
+            LOG_ALWAYS_FATAL_IF(nullptr == spSession.get());
         }
 
         // UNIX sockets with abstract addresses return
         // sizeof(sa_family_t)==2 in addrlen
-        CHECK_GE(len, sizeof(sa_family_t));
+        LOG_ALWAYS_FATAL_IF(len < sizeof(sa_family_t));
         const sockaddr* addr = reinterpret_cast<const sockaddr*>(addrPtr);
         sp<MyBinderRpcTestAndroid> service = sp<MyBinderRpcTestAndroid>::make();
         switch (addr->sa_family) {
@@ -181,15 +186,15 @@
                 // nothing to save
                 break;
             case AF_VSOCK:
-                CHECK_EQ(len, sizeof(sockaddr_vm));
+                LOG_ALWAYS_FATAL_IF(len != sizeof(sockaddr_vm));
                 service->port = reinterpret_cast<const sockaddr_vm*>(addr)->svm_port;
                 break;
             case AF_INET:
-                CHECK_EQ(len, sizeof(sockaddr_in));
+                LOG_ALWAYS_FATAL_IF(len != sizeof(sockaddr_in));
                 service->port = ntohs(reinterpret_cast<const sockaddr_in*>(addr)->sin_port);
                 break;
             case AF_INET6:
-                CHECK_EQ(len, sizeof(sockaddr_in));
+                LOG_ALWAYS_FATAL_IF(len != sizeof(sockaddr_in));
                 service->port = ntohs(reinterpret_cast<const sockaddr_in6*>(addr)->sin6_port);
                 break;
             default:
diff --git a/libs/binder/tests/binderRpcTestServiceTrusty.cpp b/libs/binder/tests/binderRpcTestServiceTrusty.cpp
index cb632e9..aaca8d0 100644
--- a/libs/binder/tests/binderRpcTestServiceTrusty.cpp
+++ b/libs/binder/tests/binderRpcTestServiceTrusty.cpp
@@ -16,7 +16,6 @@
 
 #define TLOG_TAG "binderRpcTestService"
 
-#include <android-base/stringprintf.h>
 #include <binder/RpcServerTrusty.h>
 #include <inttypes.h>
 #include <lib/tipc/tipc.h>
@@ -28,7 +27,6 @@
 #include "binderRpcTestCommon.h"
 
 using namespace android;
-using android::base::StringPrintf;
 using binder::Status;
 
 static int gConnectionCounter = 0;
diff --git a/libs/binder/tests/binderRpcTestTrusty.cpp b/libs/binder/tests/binderRpcTestTrusty.cpp
index fcb83bd..18751cc 100644
--- a/libs/binder/tests/binderRpcTestTrusty.cpp
+++ b/libs/binder/tests/binderRpcTestTrusty.cpp
@@ -16,13 +16,14 @@
 
 #define LOG_TAG "binderRpcTest"
 
-#include <android-base/stringprintf.h>
 #include <binder/RpcTransportTipcTrusty.h>
 #include <trusty-gtest.h>
 #include <trusty_ipc.h>
 
 #include "binderRpcTestFixture.h"
 
+using android::binder::unique_fd;
+
 namespace android {
 
 // Destructors need to be defined, even if pure virtual
@@ -75,7 +76,7 @@
             auto port = trustyIpcPort(serverVersion);
             int rc = connect(port.c_str(), IPC_CONNECT_WAIT_FOR_PORT);
             LOG_ALWAYS_FATAL_IF(rc < 0, "Failed to connect to service: %d", rc);
-            return base::unique_fd(rc);
+            return unique_fd(rc);
         });
         if (options.allowConnectFailure && status != OK) {
             ret->sessions.clear();
diff --git a/libs/binder/tests/binderRpcUniversalTests.cpp b/libs/binder/tests/binderRpcUniversalTests.cpp
index e43508e..885bb45 100644
--- a/libs/binder/tests/binderRpcUniversalTests.cpp
+++ b/libs/binder/tests/binderRpcUniversalTests.cpp
@@ -50,7 +50,8 @@
 
 TEST(BinderRpc, CanUseExperimentalWireVersion) {
     auto session = RpcSession::make();
-    EXPECT_TRUE(session->setProtocolVersion(RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL));
+    EXPECT_EQ(hasExperimentalRpc(),
+              session->setProtocolVersion(RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL));
 }
 
 TEST_P(BinderRpc, Ping) {
diff --git a/libs/binder/tests/binderRpcWireProtocolTest.cpp b/libs/binder/tests/binderRpcWireProtocolTest.cpp
index 642cea4..e59dc82 100644
--- a/libs/binder/tests/binderRpcWireProtocolTest.cpp
+++ b/libs/binder/tests/binderRpcWireProtocolTest.cpp
@@ -14,9 +14,7 @@
  * limitations under the License.
  */
 
-#include <android-base/hex.h>
 #include <android-base/logging.h>
-#include <android-base/macros.h>
 #include <android-base/properties.h>
 #include <android-base/strings.h>
 #include <binder/Parcel.h>
@@ -25,6 +23,7 @@
 #include <gtest/gtest.h>
 
 #include "../Debug.h"
+#include "../Utils.h"
 
 namespace android {
 
@@ -176,7 +175,7 @@
         setParcelForRpc(&p, version);
         kFillFuns[i](&p);
 
-        result += base::HexString(p.data(), p.dataSize());
+        result += HexString(p.data(), p.dataSize());
     }
     return result;
 }
@@ -263,16 +262,4 @@
     }
 }
 
-TEST(RpcWire, IfNotExperimentalCodeHasNoExperimentalFeatures) {
-    if (RPC_WIRE_PROTOCOL_VERSION == RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL) {
-        GTEST_SKIP() << "Version is experimental, so experimental features are okay.";
-    }
-
-    // if we set the wire protocol version to experimental, none of the code
-    // should introduce a difference (if this fails, it means we have features
-    // which are enabled under experimental mode, but we aren't actually using
-    // or testing them!)
-    checkRepr(kCurrentRepr, RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL);
-}
-
 } // namespace android
diff --git a/libs/binder/tests/binderSafeInterfaceTest.cpp b/libs/binder/tests/binderSafeInterfaceTest.cpp
index 5e8a32a..41cb552 100644
--- a/libs/binder/tests/binderSafeInterfaceTest.cpp
+++ b/libs/binder/tests/binderSafeInterfaceTest.cpp
@@ -28,6 +28,7 @@
 #include <gtest/gtest.h>
 #pragma clang diagnostic pop
 
+#include <utils/Flattenable.h>
 #include <utils/LightRefBase.h>
 #include <utils/NativeHandle.h>
 
@@ -40,6 +41,7 @@
 #include <sys/prctl.h>
 
 using namespace std::chrono_literals; // NOLINT - google-build-using-namespace
+using android::binder::unique_fd;
 
 namespace android {
 namespace tests {
@@ -605,7 +607,10 @@
     static constexpr const char* getLogTag() { return "SafeInterfaceTest"; }
 
     sp<ISafeInterfaceTest> getRemoteService() {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
         sp<IBinder> binder = defaultServiceManager()->getService(kServiceName);
+#pragma clang diagnostic pop
         sp<ISafeInterfaceTest> iface = interface_cast<ISafeInterfaceTest>(binder);
         EXPECT_TRUE(iface != nullptr);
 
@@ -681,7 +686,7 @@
 
 TEST_F(SafeInterfaceTest, TestIncrementNativeHandle) {
     // Create an fd we can use to send and receive from the remote process
-    base::unique_fd eventFd{eventfd(0 /*initval*/, 0 /*flags*/)};
+    unique_fd eventFd{eventfd(0 /*initval*/, 0 /*flags*/)};
     ASSERT_NE(-1, eventFd);
 
     // Determine the maximum number of fds this process can have open
diff --git a/libs/binder/tests/binderStabilityTest.cpp b/libs/binder/tests/binderStabilityTest.cpp
index 2398e1e..3d99358 100644
--- a/libs/binder/tests/binderStabilityTest.cpp
+++ b/libs/binder/tests/binderStabilityTest.cpp
@@ -155,7 +155,10 @@
 }
 
 TEST(BinderStability, ForceDowngradeToVendorStability) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     sp<IBinder> serverBinder = android::defaultServiceManager()->getService(kSystemStabilityServer);
+#pragma clang diagnostic pop
     auto server = interface_cast<IBinderStabilityTest>(serverBinder);
 
     ASSERT_NE(nullptr, server.get());
@@ -206,7 +209,10 @@
     EXPECT_EQ(connectionInfo, std::nullopt);
 }
 TEST(BinderStability, CantCallVendorBinderInSystemContext) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     sp<IBinder> serverBinder = android::defaultServiceManager()->getService(kSystemStabilityServer);
+#pragma clang diagnostic pop
     auto server = interface_cast<IBinderStabilityTest>(serverBinder);
 
     ASSERT_NE(nullptr, server.get());
@@ -310,8 +316,11 @@
 extern "C" void AIBinder_markVendorStability(AIBinder* binder); // <- BAD DO NOT COPY
 
 TEST(BinderStability, NdkCantCallVendorBinderInSystemContext) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     SpAIBinder binder = SpAIBinder(AServiceManager_getService(
         String8(kSystemStabilityServer).c_str()));
+#pragma clang diagnostic pop
 
     std::shared_ptr<aidl::IBinderStabilityTest> remoteServer =
         aidl::IBinderStabilityTest::fromBinder(binder);
diff --git a/libs/binder/tests/binderTextOutputTest.cpp b/libs/binder/tests/binderTextOutputTest.cpp
index b37030e..a648c08 100644
--- a/libs/binder/tests/binderTextOutputTest.cpp
+++ b/libs/binder/tests/binderTextOutputTest.cpp
@@ -20,13 +20,14 @@
 #include <limits>
 #include <cstddef>
 
-#include "android-base/file.h"
 #include "android-base/test_utils.h"
 #include <gtest/gtest.h>
 
 #include <binder/Parcel.h>
 #include <binder/TextOutput.h>
 
+#include "../file.h"
+
 static void CheckMessage(CapturedStderr& cap,
                          const char* expected,
                          bool singleline) {
diff --git a/libs/binder/tests/binderThroughputTest.cpp b/libs/binder/tests/binderThroughputTest.cpp
index cfaf2a9..0ea4a3f 100644
--- a/libs/binder/tests/binderThroughputTest.cpp
+++ b/libs/binder/tests/binderThroughputTest.cpp
@@ -204,7 +204,10 @@
     for (int i = 0; i < server_count; i++) {
         if (num == i)
             continue;
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
         workers.push_back(serviceMgr->getService(generateServiceName(i)));
+#pragma clang diagnostic pop
     }
 
     // Run the benchmark if client
diff --git a/libs/binder/tests/binderUtilsHostTest.cpp b/libs/binder/tests/binderUtilsHostTest.cpp
index 25e286c..6301c74 100644
--- a/libs/binder/tests/binderUtilsHostTest.cpp
+++ b/libs/binder/tests/binderUtilsHostTest.cpp
@@ -32,7 +32,7 @@
 
 TEST(UtilsHost, ExecuteImmediately) {
     auto result = execute({"echo", "foo"}, nullptr);
-    ASSERT_THAT(result, Ok());
+    ASSERT_TRUE(result.has_value());
     EXPECT_THAT(result->exitCode, Optional(EX_OK));
     EXPECT_EQ(result->stdoutStr, "foo\n");
 }
@@ -58,7 +58,7 @@
         EXPECT_GE(elapsedMs, 1000);
         EXPECT_LT(elapsedMs, 2000);
 
-        ASSERT_THAT(result, Ok());
+        ASSERT_TRUE(result.has_value());
         EXPECT_EQ(std::nullopt, result->exitCode);
         EXPECT_EQ(result->stdoutStr, "foo\n");
     }
@@ -83,7 +83,7 @@
         EXPECT_GE(elapsedMs, 4000);
         EXPECT_LT(elapsedMs, 6000);
 
-        ASSERT_THAT(result, Ok());
+        ASSERT_TRUE(result.has_value());
         EXPECT_EQ(std::nullopt, result->exitCode);
         EXPECT_EQ(result->stdoutStr, "foo\n");
     }
@@ -104,7 +104,7 @@
         return false;
     });
 
-    ASSERT_THAT(result, Ok());
+    ASSERT_TRUE(result.has_value());
     EXPECT_EQ(std::nullopt, result->exitCode);
     EXPECT_THAT(result->signal, Optional(SIGKILL));
 }
diff --git a/libs/binder/tests/format.h b/libs/binder/tests/format.h
new file mode 100644
index 0000000..b5440a4
--- /dev/null
+++ b/libs/binder/tests/format.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// TODO(b/302723053): remove this header and replace with <format> once b/175635923 is done
+// ETA for this blocker is 2023-10-27~2023-11-10.
+// Also, remember to remove fmtlib's format.cc from trusty makefiles.
+
+#if __has_include(<format>)
+#include <format>
+#else
+#include <fmt/format.h>
+
+namespace std {
+using fmt::format;
+}
+#endif
\ No newline at end of file
diff --git a/libs/binder/tests/parcel_fuzzer/Android.bp b/libs/binder/tests/parcel_fuzzer/Android.bp
index 383795e..fe79f8e 100644
--- a/libs/binder/tests/parcel_fuzzer/Android.bp
+++ b/libs/binder/tests/parcel_fuzzer/Android.bp
@@ -32,7 +32,11 @@
     host_supported: true,
 
     fuzz_config: {
-        cc: ["smoreland@google.com"],
+        cc: [
+            "smoreland@google.com",
+            "waghpawan@google.com",
+        ],
+        use_for_presubmit: true,
     },
 
     srcs: [
diff --git a/libs/binder/tests/parcel_fuzzer/binder.cpp b/libs/binder/tests/parcel_fuzzer/binder.cpp
index 46d387c..08fe071 100644
--- a/libs/binder/tests/parcel_fuzzer/binder.cpp
+++ b/libs/binder/tests/parcel_fuzzer/binder.cpp
@@ -21,14 +21,17 @@
 #include "parcelables/SingleDataParcelable.h"
 #include "util.h"
 
-#include <android-base/hex.h>
 #include <android/os/IServiceManager.h>
 #include <binder/ParcelableHolder.h>
 #include <binder/PersistableBundle.h>
 #include <binder/Status.h>
+#include <utils/Flattenable.h>
 
+#include "../../Utils.h"
+
+using ::android::HexString;
 using ::android::status_t;
-using ::android::base::HexString;
+using ::android::binder::unique_fd;
 
 enum ByteEnum : int8_t {};
 enum IntEnum : int32_t {};
@@ -305,11 +308,12 @@
     },
     PARCEL_READ_NO_STATUS(int, readFileDescriptor),
     PARCEL_READ_NO_STATUS(int, readParcelFileDescriptor),
-    PARCEL_READ_WITH_STATUS(android::base::unique_fd, readUniqueFileDescriptor),
+    PARCEL_READ_WITH_STATUS(unique_fd, readUniqueFileDescriptor),
 
-    PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<android::base::unique_fd>>, readUniqueFileDescriptorVector),
-    PARCEL_READ_WITH_STATUS(std::optional<std::vector<android::base::unique_fd>>, readUniqueFileDescriptorVector),
-    PARCEL_READ_WITH_STATUS(std::vector<android::base::unique_fd>, readUniqueFileDescriptorVector),
+    PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<unique_fd>>,
+            readUniqueFileDescriptorVector),
+    PARCEL_READ_WITH_STATUS(std::optional<std::vector<unique_fd>>, readUniqueFileDescriptorVector),
+    PARCEL_READ_WITH_STATUS(std::vector<unique_fd>, readUniqueFileDescriptorVector),
 
     [] (const ::android::Parcel& p, FuzzedDataProvider& provider) {
         size_t len = provider.ConsumeIntegral<size_t>();
diff --git a/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp b/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp
index c0fdaea..57521f4 100644
--- a/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp
+++ b/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp
@@ -14,18 +14,20 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
+#include "../../FileUtils.h"
+
 #include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <binder/RecordedTransaction.h>
+#include <binder/unique_fd.h>
 
 #include <fuzzseeds/random_parcel_seeds.h>
 
 #include <sys/prctl.h>
+#include <sys/stat.h>
 
 using android::generateSeedsFromRecording;
 using android::status_t;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 using android::binder::debug::RecordedTransaction;
 
 status_t generateCorpus(const char* recordingPath, const char* corpusDir) {
@@ -49,7 +51,7 @@
         std::string filePath = std::string(corpusDir) + std::string("transaction_") +
                 std::to_string(transactionNumber);
         constexpr int openFlags = O_WRONLY | O_CREAT | O_BINARY | O_CLOEXEC;
-        android::base::unique_fd corpusFd(open(filePath.c_str(), openFlags, 0666));
+        unique_fd corpusFd(open(filePath.c_str(), openFlags, 0666));
         if (!corpusFd.ok()) {
             std::cerr << "Failed to open fd. Path " << filePath
                       << " with error: " << strerror(errno) << std::endl;
diff --git a/libs/binder/tests/parcel_fuzzer/hwbinder.cpp b/libs/binder/tests/parcel_fuzzer/hwbinder.cpp
index 438e8ae..cdc8bcc 100644
--- a/libs/binder/tests/parcel_fuzzer/hwbinder.cpp
+++ b/libs/binder/tests/parcel_fuzzer/hwbinder.cpp
@@ -18,12 +18,13 @@
 #include "hwbinder.h"
 #include "util.h"
 
-#include <android-base/hex.h>
 #include <android-base/logging.h>
 #include <hwbinder/Parcel.h>
 
+#include "../../Utils.h"
+
 using ::android::status_t;
-using ::android::base::HexString;
+using ::android::HexString;
 
 // TODO: support scatter-gather types
 
diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h
index 6ea9708..8d1299d 100644
--- a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #include <fuzzer/FuzzedDataProvider.h>
 
 #include <vector>
@@ -27,6 +27,6 @@
 // get a random FD for use in fuzzing, of a few different specific types
 //
 // may return multiple FDs (e.g. pipe), but will always return at least one
-std::vector<base::unique_fd> getRandomFds(FuzzedDataProvider* provider);
+std::vector<binder::unique_fd> getRandomFds(FuzzedDataProvider* provider);
 
 } // namespace android
diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h
index 27587a9..2812da7 100644
--- a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h
@@ -27,7 +27,7 @@
 struct RandomParcelOptions {
     std::function<void(Parcel* p, FuzzedDataProvider& provider)> writeHeader;
     std::vector<sp<IBinder>> extraBinders;
-    std::vector<base::unique_fd> extraFds;
+    std::vector<binder::unique_fd> extraFds;
 };
 
 /**
diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h
index 5755239..694b68d 100644
--- a/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
-#include <android-base/hex.h>
+#include "../../../../file.h"
+
 #include <android-base/logging.h>
 
 #include <binder/Binder.h>
@@ -27,7 +27,6 @@
 #include <vector>
 
 using android::Parcel;
-using android::base::HexString;
 using std::vector;
 
 namespace android {
@@ -42,6 +41,6 @@
 template <typename T>
 void writeReversedBuffer(std::vector<std::byte>& integralBuffer, T val);
 } // namespace impl
-void generateSeedsFromRecording(base::borrowed_fd fd,
+void generateSeedsFromRecording(binder::borrowed_fd fd,
                                 const binder::debug::RecordedTransaction& transaction);
 } // namespace android
diff --git a/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp b/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp
index 38e6f32..02e69cc 100644
--- a/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp
+++ b/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp
@@ -23,6 +23,8 @@
 
 #include <private/android_filesystem_config.h>
 
+using android::binder::unique_fd;
+
 namespace android {
 
 void fuzzService(const sp<IBinder>& binder, FuzzedDataProvider&& provider) {
@@ -103,7 +105,7 @@
                                     retBinders.end());
         auto retFds = reply.debugReadAllFileDescriptors();
         for (size_t i = 0; i < retFds.size(); i++) {
-            options.extraFds.push_back(base::unique_fd(dup(retFds[i])));
+            options.extraFds.push_back(unique_fd(dup(retFds[i])));
         }
     }
 
diff --git a/libs/binder/tests/parcel_fuzzer/main.cpp b/libs/binder/tests/parcel_fuzzer/main.cpp
index bef4ab6..5b1e9ea 100644
--- a/libs/binder/tests/parcel_fuzzer/main.cpp
+++ b/libs/binder/tests/parcel_fuzzer/main.cpp
@@ -22,7 +22,6 @@
 
 #include <iostream>
 
-#include <android-base/hex.h>
 #include <android-base/logging.h>
 #include <android/binder_auto_utils.h>
 #include <android/binder_libbinder.h>
@@ -34,10 +33,12 @@
 #include <sys/resource.h>
 #include <sys/time.h>
 
+#include "../../Utils.h"
+
 using android::fillRandomParcel;
 using android::RandomParcelOptions;
 using android::sp;
-using android::base::HexString;
+using android::HexString;
 
 void fillRandomParcel(::android::hardware::Parcel* p, FuzzedDataProvider&& provider,
                       RandomParcelOptions* options) {
diff --git a/libs/binder/tests/parcel_fuzzer/random_fd.cpp b/libs/binder/tests/parcel_fuzzer/random_fd.cpp
index 7390d49..c7d1533 100644
--- a/libs/binder/tests/parcel_fuzzer/random_fd.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_fd.cpp
@@ -23,7 +23,7 @@
 
 namespace android {
 
-using base::unique_fd;
+using binder::unique_fd;
 
 std::vector<unique_fd> getRandomFds(FuzzedDataProvider* provider) {
     const char* fdType;
@@ -51,7 +51,9 @@
 
                  int flags = O_CLOEXEC;
                  if (provider->ConsumeBool()) flags |= O_DIRECT;
-                 if (provider->ConsumeBool()) flags |= O_NONBLOCK;
+
+                 // TODO(b/236812909): also test blocking
+                 if (true) flags |= O_NONBLOCK;
 
                  CHECK_EQ(0, pipe2(pipefds, flags)) << flags;
 
diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
index f0beed2..4e58dc4 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
@@ -23,6 +23,8 @@
 #include <fuzzbinder/random_fd.h>
 #include <utils/String16.h>
 
+using android::binder::unique_fd;
+
 namespace android {
 
 static void fillRandomParcelData(Parcel* p, FuzzedDataProvider&& provider) {
@@ -66,8 +68,13 @@
                 },
                 // write FD
                 [&]() {
+                    // b/296516864 - Limit number of objects written to a parcel.
+                    if (p->objectsCount() > 100) {
+                        return;
+                    }
+
                     if (options->extraFds.size() > 0 && provider.ConsumeBool()) {
-                        const base::unique_fd& fd = options->extraFds.at(
+                        const unique_fd& fd = options->extraFds.at(
                                 provider.ConsumeIntegralInRange<size_t>(0,
                                                                         options->extraFds.size() -
                                                                                 1));
@@ -78,11 +85,10 @@
                             return;
                         }
 
-                        std::vector<base::unique_fd> fds = getRandomFds(&provider);
+                        std::vector<unique_fd> fds = getRandomFds(&provider);
                         CHECK(OK ==
                               p->writeFileDescriptor(fds.begin()->release(),
                                                      true /*takeOwnership*/));
-
                         options->extraFds.insert(options->extraFds.end(),
                                                  std::make_move_iterator(fds.begin() + 1),
                                                  std::make_move_iterator(fds.end()));
@@ -90,6 +96,11 @@
                 },
                 // write binder
                 [&]() {
+                    // b/296516864 - Limit number of objects written to a parcel.
+                    if (p->objectsCount() > 100) {
+                        return;
+                    }
+
                     sp<IBinder> binder;
                     if (options->extraBinders.size() > 0 && provider.ConsumeBool()) {
                         binder = options->extraBinders.at(
diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
index 9e3e2ab..7b3c806 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
@@ -14,14 +14,16 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
 #include <android-base/logging.h>
 
 #include <binder/RecordedTransaction.h>
 
 #include <fuzzseeds/random_parcel_seeds.h>
 
-using android::base::WriteFully;
+#include "../../file.h"
+
+using android::binder::borrowed_fd;
+using android::binder::WriteFully;
 
 namespace android {
 namespace impl {
@@ -64,7 +66,7 @@
 
 } // namespace impl
 
-void generateSeedsFromRecording(base::borrowed_fd fd,
+void generateSeedsFromRecording(borrowed_fd fd,
                                 const binder::debug::RecordedTransaction& transaction) {
     // Write Reserved bytes for future use
     std::vector<uint8_t> reservedBytes(8);
diff --git a/libs/binder/tests/rpc_fuzzer/Android.bp b/libs/binder/tests/rpc_fuzzer/Android.bp
index 71e847f..ab72bfd 100644
--- a/libs/binder/tests/rpc_fuzzer/Android.bp
+++ b/libs/binder/tests/rpc_fuzzer/Android.bp
@@ -25,13 +25,14 @@
         "libbase",
         "libcutils",
         "liblog",
+        "libbinder_test_utils",
         "libbinder_tls_static",
         "libbinder_tls_test_utils",
         "libssl_fuzz_unsafe",
         "libcrypto_fuzz_unsafe",
     ],
     cflags: [
-        "-DBORINGSSL_UNSAFE_DETERMINISTIC_MODE" // for RAND_reset_for_fuzzing
+        "-DBORINGSSL_UNSAFE_DETERMINISTIC_MODE", // for RAND_reset_for_fuzzing
     ],
     target: {
         android: {
diff --git a/libs/binder/tests/rpc_fuzzer/main.cpp b/libs/binder/tests/rpc_fuzzer/main.cpp
index dcc8b8e..50fc2f2 100644
--- a/libs/binder/tests/rpc_fuzzer/main.cpp
+++ b/libs/binder/tests/rpc_fuzzer/main.cpp
@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
+#include "../FileUtils.h"
+
 #include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <binder/Binder.h>
 #include <binder/Parcel.h>
 #include <binder/RpcServer.h>
@@ -24,13 +24,18 @@
 #include <binder/RpcTransport.h>
 #include <binder/RpcTransportRaw.h>
 #include <binder/RpcTransportTls.h>
+#include <binder/unique_fd.h>
 #include <fuzzer/FuzzedDataProvider.h>
 #include <openssl/rand.h>
 #include <openssl/ssl.h>
 
 #include <sys/resource.h>
+#include <sys/socket.h>
 #include <sys/un.h>
 
+using android::binder::GetExecutableDirectory;
+using android::binder::unique_fd;
+
 namespace android {
 
 static const std::string kSock = std::string(getenv("TMPDIR") ?: "/tmp") +
@@ -76,12 +81,12 @@
 ServerAuth readServerKeyAndCert() {
     ServerAuth ret;
 
-    auto keyPath = android::base::GetExecutableDirectory() + "/data/server.key";
+    auto keyPath = GetExecutableDirectory() + "/data/server.key";
     bssl::UniquePtr<BIO> keyBio(BIO_new_file(keyPath.c_str(), "r"));
     ret.pkey.reset(PEM_read_bio_PrivateKey(keyBio.get(), nullptr, passwordCallback, nullptr));
     CHECK_NE(ret.pkey.get(), nullptr);
 
-    auto certPath = android::base::GetExecutableDirectory() + "/data/server.crt";
+    auto certPath = GetExecutableDirectory() + "/data/server.crt";
     bssl::UniquePtr<BIO> certBio(BIO_new_file(certPath.c_str(), "r"));
     ret.cert.reset(PEM_read_bio_X509(certBio.get(), nullptr, nullptr, nullptr));
     CHECK_NE(ret.cert.get(), nullptr);
@@ -129,7 +134,7 @@
     CHECK_LT(kSock.size(), sizeof(addr.sun_path));
     memcpy(&addr.sun_path, kSock.c_str(), kSock.size());
 
-    std::vector<base::unique_fd> connections;
+    std::vector<unique_fd> connections;
 
     bool hangupBeforeShutdown = provider.ConsumeBool();
 
@@ -140,7 +145,7 @@
     while (provider.remaining_bytes() > 0) {
         if (connections.empty() ||
             (connections.size() < kMaxConnections && provider.ConsumeBool())) {
-            base::unique_fd fd(TEMP_FAILURE_RETRY(socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0)));
+            unique_fd fd(TEMP_FAILURE_RETRY(socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0)));
             CHECK_NE(fd.get(), -1);
             CHECK_EQ(0,
                      TEMP_FAILURE_RETRY(
diff --git a/libs/binder/tests/schd-dbg.cpp b/libs/binder/tests/schd-dbg.cpp
index 0035e4e..d3cd528 100644
--- a/libs/binder/tests/schd-dbg.cpp
+++ b/libs/binder/tests/schd-dbg.cpp
@@ -340,7 +340,10 @@
   for (int i = 0; i < server_count; i++) {
     // self service is in-process so just skip
     if (num == i) continue;
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     workers.push_back(serviceMgr->getService(generateServiceName(i)));
+#pragma clang diagnostic pop
   }
 
   // Client for each pair iterates here
diff --git a/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h b/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h
index 8d2b714..993418a 100644
--- a/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h
+++ b/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h
@@ -74,7 +74,7 @@
                                   bbinder->getDebugPid();
                               },
                               [](FuzzedDataProvider*, const sp<BBinder>& bbinder) -> void {
-                                  (void)bbinder->setRpcClientDebug(android::base::unique_fd(),
+                                  (void)bbinder->setRpcClientDebug(binder::unique_fd(),
                                                                    sp<BBinder>::make());
                               }};
 
diff --git a/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp b/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp
index e494366..87b0fb6 100644
--- a/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp
+++ b/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp
@@ -14,19 +14,20 @@
  * limitations under the License.
  */
 
-#include <android-base/macros.h>
 #include <binder/RecordedTransaction.h>
 #include <filesystem>
 
 #include "fuzzer/FuzzedDataProvider.h"
 
+using android::binder::unique_fd;
+
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     std::FILE* intermediateFile = std::tmpfile();
     fwrite(data, sizeof(uint8_t), size, intermediateFile);
     rewind(intermediateFile);
     int fileNumber = fileno(intermediateFile);
 
-    android::base::unique_fd fd(dup(fileNumber));
+    unique_fd fd(dup(fileNumber));
 
     auto transaction = android::binder::debug::RecordedTransaction::fromFile(fd);
 
@@ -35,8 +36,8 @@
     if (transaction.has_value()) {
         intermediateFile = std::tmpfile();
 
-        android::base::unique_fd fdForWriting(fileno(intermediateFile));
-        auto writeStatus ATTRIBUTE_UNUSED = transaction.value().dumpToFile(fdForWriting);
+        unique_fd fdForWriting(dup(fileno(intermediateFile)));
+        auto writeStatus [[maybe_unused]] = transaction.value().dumpToFile(fdForWriting);
 
         std::fclose(intermediateFile);
     }
diff --git a/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp b/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp
index 33a653e..fa939e6 100644
--- a/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp
+++ b/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <android-base/macros.h>
 #include <binder/RecordedTransaction.h>
 #include <fuzzbinder/random_parcel.h>
 #include <filesystem>
@@ -23,6 +22,7 @@
 #include "fuzzer/FuzzedDataProvider.h"
 
 using android::fillRandomParcel;
+using android::binder::unique_fd;
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     FuzzedDataProvider provider = FuzzedDataProvider(data, size);
@@ -54,8 +54,8 @@
 
     if (transaction.has_value()) {
         std::FILE* intermediateFile = std::tmpfile();
-        android::base::unique_fd fdForWriting(dup(fileno(intermediateFile)));
-        auto writeStatus ATTRIBUTE_UNUSED = transaction.value().dumpToFile(fdForWriting);
+        unique_fd fdForWriting(dup(fileno(intermediateFile)));
+        auto writeStatus [[maybe_unused]] = transaction.value().dumpToFile(fdForWriting);
 
         std::fclose(intermediateFile);
     }
diff --git a/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp b/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp
index 5e3502a..fe09978 100644
--- a/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp
+++ b/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp
@@ -14,11 +14,12 @@
  * limitations under the License.
  */
 
+#include "../../file.h"
+
 #include <fuzzer/FuzzedDataProvider.h>
 
 #include <binder/Parcel.h>
 #include <binder/TextOutput.h>
-#include "android-base/file.h"
 #include "android-base/test_utils.h"
 
 #include <fcntl.h>
diff --git a/libs/binder/trusty/OS.cpp b/libs/binder/trusty/OS.cpp
index 8ec9823..ca14286 100644
--- a/libs/binder/trusty/OS.cpp
+++ b/libs/binder/trusty/OS.cpp
@@ -26,13 +26,14 @@
 #include "../OS.h"
 #include "TrustyStatus.h"
 
-using android::base::Result;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
-namespace android {
+namespace android::binder::os {
 
-Result<void> setNonBlocking(android::base::borrowed_fd /*fd*/) {
+status_t setNonBlocking(borrowed_fd /*fd*/) {
     // Trusty IPC syscalls are all non-blocking by default.
-    return {};
+    return OK;
 }
 
 status_t getRandomBytes(uint8_t* data, size_t size) {
@@ -61,16 +62,16 @@
 
 ssize_t sendMessageOnSocket(
         const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) {
+        const std::vector<std::variant<unique_fd, borrowed_fd>>* /* ancillaryFds */) {
     errno = ENOTSUP;
     return -1;
 }
 
 ssize_t receiveMessageFromSocket(
         const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>* /* ancillaryFds */) {
     errno = ENOTSUP;
     return -1;
 }
 
-} // namespace android
+} // namespace android::binder::os
diff --git a/libs/binder/trusty/RpcServerTrusty.cpp b/libs/binder/trusty/RpcServerTrusty.cpp
index 8f64323..0872b90 100644
--- a/libs/binder/trusty/RpcServerTrusty.cpp
+++ b/libs/binder/trusty/RpcServerTrusty.cpp
@@ -28,6 +28,7 @@
 #include "TrustyStatus.h"
 
 using android::base::unexpected;
+using android::binder::unique_fd;
 
 namespace android {
 
@@ -129,7 +130,7 @@
     if (chanDup < 0) {
         return chanDup;
     }
-    base::unique_fd clientFd(chanDup);
+    unique_fd clientFd(chanDup);
     android::RpcTransportFd transportFd(std::move(clientFd));
 
     std::array<uint8_t, RpcServer::kRpcAddressSize> addr;
diff --git a/libs/binder/trusty/RpcTransportTipcTrusty.cpp b/libs/binder/trusty/RpcTransportTipcTrusty.cpp
index 692f82d..c74ba0a 100644
--- a/libs/binder/trusty/RpcTransportTipcTrusty.cpp
+++ b/libs/binder/trusty/RpcTransportTipcTrusty.cpp
@@ -29,6 +29,10 @@
 
 namespace android {
 
+using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
+
 // RpcTransport for Trusty.
 class RpcTransportTipcTrusty : public RpcTransport {
 public:
@@ -45,9 +49,8 @@
 
     status_t interruptableWriteFully(
             FdTrigger* /*fdTrigger*/, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& /*altPoll*/,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override {
+            const std::optional<SmallFunction<status_t()>>& /*altPoll*/,
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         if (niovs < 0) {
             return BAD_VALUE;
         }
@@ -115,8 +118,8 @@
 
     status_t interruptableReadFully(
             FdTrigger* /*fdTrigger*/, iovec* iovs, int niovs,
-            const std::optional<android::base::function_ref<status_t()>>& /*altPoll*/,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override {
+            const std::optional<SmallFunction<status_t()>>& /*altPoll*/,
+            std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         if (niovs < 0) {
             return BAD_VALUE;
         }
@@ -168,7 +171,7 @@
                 if (ancillaryFds != nullptr) {
                     ancillaryFds->reserve(ancillaryFds->size() + mMessageInfo.num_handles);
                     for (size_t i = 0; i < mMessageInfo.num_handles; i++) {
-                        ancillaryFds->emplace_back(base::unique_fd(msgHandles[i]));
+                        ancillaryFds->emplace_back(unique_fd(msgHandles[i]));
                     }
 
                     // Clear the saved number of handles so we don't accidentally
diff --git a/libs/binder/trusty/binderRpcTest/manifest.json b/libs/binder/trusty/binderRpcTest/manifest.json
index 1cefac5..6e20b8a 100644
--- a/libs/binder/trusty/binderRpcTest/manifest.json
+++ b/libs/binder/trusty/binderRpcTest/manifest.json
@@ -2,5 +2,5 @@
     "uuid": "9dbe9fb8-60fd-4bdd-af86-03e95d7ad78b",
     "app_name": "binderRpcTest",
     "min_heap": 262144,
-    "min_stack": 16384
+    "min_stack": 20480
 }
diff --git a/libs/binder/trusty/binderRpcTest/rules.mk b/libs/binder/trusty/binderRpcTest/rules.mk
index 975f689..e46ccfb 100644
--- a/libs/binder/trusty/binderRpcTest/rules.mk
+++ b/libs/binder/trusty/binderRpcTest/rules.mk
@@ -21,6 +21,7 @@
 MANIFEST := $(LOCAL_DIR)/manifest.json
 
 MODULE_SRCS += \
+	$(FMTLIB_DIR)/src/format.cc \
 	$(LIBBINDER_TESTS_DIR)/binderRpcUniversalTests.cpp \
 	$(LIBBINDER_TESTS_DIR)/binderRpcTestCommon.cpp \
 	$(LIBBINDER_TESTS_DIR)/binderRpcTestTrusty.cpp \
diff --git a/libs/binder/trusty/binderRpcTest/service/rules.mk b/libs/binder/trusty/binderRpcTest/service/rules.mk
index 5d1a51d..50ae3d2 100644
--- a/libs/binder/trusty/binderRpcTest/service/rules.mk
+++ b/libs/binder/trusty/binderRpcTest/service/rules.mk
@@ -21,6 +21,7 @@
 MANIFEST := $(LOCAL_DIR)/manifest.json
 
 MODULE_SRCS := \
+	$(FMTLIB_DIR)/src/format.cc \
 	$(LIBBINDER_TESTS_DIR)/binderRpcTestCommon.cpp \
 	$(LIBBINDER_TESTS_DIR)/binderRpcTestServiceTrusty.cpp \
 
diff --git a/libs/binder/trusty/include/binder/RpcServerTrusty.h b/libs/binder/trusty/include/binder/RpcServerTrusty.h
index 8924b36..7382a30 100644
--- a/libs/binder/trusty/include/binder/RpcServerTrusty.h
+++ b/libs/binder/trusty/include/binder/RpcServerTrusty.h
@@ -17,12 +17,11 @@
 #pragma once
 
 #include <android-base/expected.h>
-#include <android-base/macros.h>
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
@@ -83,7 +82,8 @@
     // Both this class and RpcServer have multiple non-copyable fields,
     // including mPortAcl below which can't be copied because mUuidPtrs
     // holds pointers into it
-    DISALLOW_COPY_AND_ASSIGN(RpcServerTrusty);
+    RpcServerTrusty(const RpcServerTrusty&) = delete;
+    void operator=(const RpcServerTrusty&) = delete;
 
     friend sp<RpcServerTrusty>;
     explicit RpcServerTrusty(std::unique_ptr<RpcTransportCtx> ctx, std::string&& portName,
diff --git a/libs/binder/trusty/kernel/rules.mk b/libs/binder/trusty/kernel/rules.mk
index ab7a50d..d2b37aa 100644
--- a/libs/binder/trusty/kernel/rules.mk
+++ b/libs/binder/trusty/kernel/rules.mk
@@ -24,35 +24,28 @@
 FMTLIB_DIR := external/fmtlib
 
 MODULE_SRCS := \
-	$(LOCAL_DIR)/../logging.cpp \
 	$(LOCAL_DIR)/../TrustyStatus.cpp \
 	$(LIBBINDER_DIR)/Binder.cpp \
 	$(LIBBINDER_DIR)/BpBinder.cpp \
 	$(LIBBINDER_DIR)/FdTrigger.cpp \
 	$(LIBBINDER_DIR)/IInterface.cpp \
 	$(LIBBINDER_DIR)/IResultReceiver.cpp \
+	$(LIBBINDER_DIR)/OS_android.cpp \
 	$(LIBBINDER_DIR)/Parcel.cpp \
 	$(LIBBINDER_DIR)/Stability.cpp \
 	$(LIBBINDER_DIR)/Status.cpp \
 	$(LIBBINDER_DIR)/Utils.cpp \
 	$(LIBBASE_DIR)/hex.cpp \
 	$(LIBBASE_DIR)/stringprintf.cpp \
-	$(LIBUTILS_DIR)/Errors.cpp \
+	$(LIBUTILS_DIR)/binder/Errors.cpp \
+	$(LIBUTILS_DIR)/binder/RefBase.cpp \
+	$(LIBUTILS_DIR)/binder/SharedBuffer.cpp \
+	$(LIBUTILS_DIR)/binder/String16.cpp \
+	$(LIBUTILS_DIR)/binder/String8.cpp \
+	$(LIBUTILS_DIR)/binder/StrongPointer.cpp \
+	$(LIBUTILS_DIR)/binder/Unicode.cpp \
+	$(LIBUTILS_DIR)/binder/VectorImpl.cpp \
 	$(LIBUTILS_DIR)/misc.cpp \
-	$(LIBUTILS_DIR)/RefBase.cpp \
-	$(LIBUTILS_DIR)/StrongPointer.cpp \
-	$(LIBUTILS_DIR)/Unicode.cpp \
-
-# TODO: remove the following when libbinder supports std::string
-# instead of String16 and String8 for Status and descriptors
-MODULE_SRCS += \
-	$(LIBUTILS_DIR)/SharedBuffer.cpp \
-	$(LIBUTILS_DIR)/String16.cpp \
-	$(LIBUTILS_DIR)/String8.cpp \
-
-# TODO: disable dump() transactions to get rid of Vector
-MODULE_SRCS += \
-	$(LIBUTILS_DIR)/VectorImpl.cpp \
 
 MODULE_DEFINES += \
 	LK_DEBUGLEVEL_NO_ALIASES=1 \
diff --git a/libs/binder/trusty/logging.cpp b/libs/binder/trusty/logging.cpp
deleted file mode 100644
index b4243af..0000000
--- a/libs/binder/trusty/logging.cpp
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define TLOG_TAG "libbinder"
-
-#include "android-base/logging.h"
-
-#include <trusty_log.h>
-#include <iostream>
-#include <string>
-
-#include <android-base/macros.h>
-#include <android-base/strings.h>
-
-namespace android {
-namespace base {
-
-static const char* GetFileBasename(const char* file) {
-    const char* last_slash = strrchr(file, '/');
-    if (last_slash != nullptr) {
-        return last_slash + 1;
-    }
-    return file;
-}
-
-// This splits the message up line by line, by calling log_function with a pointer to the start of
-// each line and the size up to the newline character.  It sends size = -1 for the final line.
-template <typename F, typename... Args>
-static void SplitByLines(const char* msg, const F& log_function, Args&&... args) {
-    const char* newline;
-    while ((newline = strchr(msg, '\n')) != nullptr) {
-        log_function(msg, newline - msg, args...);
-        msg = newline + 1;
-    }
-
-    log_function(msg, -1, args...);
-}
-
-void DefaultAborter(const char* abort_message) {
-    TLOGC("aborting: %s\n", abort_message);
-    abort();
-}
-
-static void TrustyLogLine(const char* msg, int /*length*/, android::base::LogSeverity severity,
-                          const char* tag) {
-    switch (severity) {
-        case VERBOSE:
-        case DEBUG:
-            TLOGD("%s: %s\n", tag, msg);
-            break;
-        case INFO:
-            TLOGI("%s: %s\n", tag, msg);
-            break;
-        case WARNING:
-            TLOGW("%s: %s\n", tag, msg);
-            break;
-        case ERROR:
-            TLOGE("%s: %s\n", tag, msg);
-            break;
-        case FATAL_WITHOUT_ABORT:
-        case FATAL:
-            TLOGC("%s: %s\n", tag, msg);
-            break;
-    }
-}
-
-void TrustyLogger(android::base::LogId, android::base::LogSeverity severity, const char* tag,
-                  const char*, unsigned int, const char* full_message) {
-    SplitByLines(full_message, TrustyLogLine, severity, tag);
-}
-
-// This indirection greatly reduces the stack impact of having lots of
-// checks/logging in a function.
-class LogMessageData {
-public:
-    LogMessageData(const char* file, unsigned int line, LogSeverity severity, const char* tag,
-                   int error)
-          : file_(GetFileBasename(file)),
-            line_number_(line),
-            severity_(severity),
-            tag_(tag),
-            error_(error) {}
-
-    const char* GetFile() const { return file_; }
-
-    unsigned int GetLineNumber() const { return line_number_; }
-
-    LogSeverity GetSeverity() const { return severity_; }
-
-    const char* GetTag() const { return tag_; }
-
-    int GetError() const { return error_; }
-
-    std::ostream& GetBuffer() { return buffer_; }
-
-    std::string ToString() const { return buffer_.str(); }
-
-private:
-    std::ostringstream buffer_;
-    const char* const file_;
-    const unsigned int line_number_;
-    const LogSeverity severity_;
-    const char* const tag_;
-    const int error_;
-
-    DISALLOW_COPY_AND_ASSIGN(LogMessageData);
-};
-
-LogMessage::LogMessage(const char* file, unsigned int line, LogId, LogSeverity severity,
-                       const char* tag, int error)
-      : LogMessage(file, line, severity, tag, error) {}
-
-LogMessage::LogMessage(const char* file, unsigned int line, LogSeverity severity, const char* tag,
-                       int error)
-      : data_(new LogMessageData(file, line, severity, tag, error)) {}
-
-LogMessage::~LogMessage() {
-    // Check severity again. This is duplicate work wrt/ LOG macros, but not LOG_STREAM.
-    if (!WOULD_LOG(data_->GetSeverity())) {
-        return;
-    }
-
-    // Finish constructing the message.
-    if (data_->GetError() != -1) {
-        data_->GetBuffer() << ": " << strerror(data_->GetError());
-    }
-    std::string msg(data_->ToString());
-
-    LogLine(data_->GetFile(), data_->GetLineNumber(), data_->GetSeverity(), data_->GetTag(),
-            msg.c_str());
-
-    // Abort if necessary.
-    if (data_->GetSeverity() == FATAL) {
-        DefaultAborter(msg.c_str());
-    }
-}
-
-std::ostream& LogMessage::stream() {
-    return data_->GetBuffer();
-}
-
-void LogMessage::LogLine(const char* file, unsigned int line, LogSeverity severity, const char* tag,
-                         const char* message) {
-    TrustyLogger(DEFAULT, severity, tag ?: "<unknown>", file, line, message);
-}
-
-bool ShouldLog(LogSeverity /*severity*/, const char* /*tag*/) {
-    // This is controlled by Trusty's log level.
-    return true;
-}
-
-} // namespace base
-} // namespace android
diff --git a/libs/binder/trusty/rules.mk b/libs/binder/trusty/rules.mk
index 42db29a..dbddbe1 100644
--- a/libs/binder/trusty/rules.mk
+++ b/libs/binder/trusty/rules.mk
@@ -24,7 +24,6 @@
 FMTLIB_DIR := external/fmtlib
 
 MODULE_SRCS := \
-	$(LOCAL_DIR)/logging.cpp \
 	$(LOCAL_DIR)/OS.cpp \
 	$(LOCAL_DIR)/RpcServerTrusty.cpp \
 	$(LOCAL_DIR)/RpcTransportTipcTrusty.cpp \
@@ -35,6 +34,7 @@
 	$(LIBBINDER_DIR)/FdTrigger.cpp \
 	$(LIBBINDER_DIR)/IInterface.cpp \
 	$(LIBBINDER_DIR)/IResultReceiver.cpp \
+	$(LIBBINDER_DIR)/OS_android.cpp \
 	$(LIBBINDER_DIR)/Parcel.cpp \
 	$(LIBBINDER_DIR)/ParcelFileDescriptor.cpp \
 	$(LIBBINDER_DIR)/RpcServer.cpp \
@@ -43,24 +43,18 @@
 	$(LIBBINDER_DIR)/Stability.cpp \
 	$(LIBBINDER_DIR)/Status.cpp \
 	$(LIBBINDER_DIR)/Utils.cpp \
+	$(LIBBINDER_DIR)/file.cpp \
 	$(LIBBASE_DIR)/hex.cpp \
 	$(LIBBASE_DIR)/stringprintf.cpp \
-	$(LIBUTILS_DIR)/Errors.cpp \
+	$(LIBUTILS_DIR)/binder/Errors.cpp \
+	$(LIBUTILS_DIR)/binder/RefBase.cpp \
+	$(LIBUTILS_DIR)/binder/SharedBuffer.cpp \
+	$(LIBUTILS_DIR)/binder/String16.cpp \
+	$(LIBUTILS_DIR)/binder/String8.cpp \
+	$(LIBUTILS_DIR)/binder/StrongPointer.cpp \
+	$(LIBUTILS_DIR)/binder/Unicode.cpp \
+	$(LIBUTILS_DIR)/binder/VectorImpl.cpp \
 	$(LIBUTILS_DIR)/misc.cpp \
-	$(LIBUTILS_DIR)/RefBase.cpp \
-	$(LIBUTILS_DIR)/StrongPointer.cpp \
-	$(LIBUTILS_DIR)/Unicode.cpp \
-
-# TODO: remove the following when libbinder supports std::string
-# instead of String16 and String8 for Status and descriptors
-MODULE_SRCS += \
-	$(LIBUTILS_DIR)/SharedBuffer.cpp \
-	$(LIBUTILS_DIR)/String16.cpp \
-	$(LIBUTILS_DIR)/String8.cpp \
-
-# TODO: disable dump() transactions to get rid of Vector
-MODULE_SRCS += \
-	$(LIBUTILS_DIR)/VectorImpl.cpp \
 
 MODULE_EXPORT_INCLUDES += \
 	$(LOCAL_DIR)/include \
diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index 16315ed..394a000 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp
@@ -138,6 +138,16 @@
     return base::Join(soNames, ':');
 }
 
+static sp<IGpuService> getGpuService() {
+    static const sp<IBinder> binder = defaultServiceManager()->checkService(String16("gpu"));
+    if (!binder) {
+        ALOGE("Failed to get gpu service");
+        return nullptr;
+    }
+
+    return interface_cast<IGpuService>(binder);
+}
+
 /*static*/ GraphicsEnv& GraphicsEnv::getInstance() {
     static GraphicsEnv env;
     return env;
@@ -160,8 +170,12 @@
     return appDebuggable || platformDebuggable;
 }
 
-void GraphicsEnv::setDriverPathAndSphalLibraries(const std::string path,
-                                                 const std::string sphalLibraries) {
+/**
+ * APIs for updatable graphics drivers
+ */
+
+void GraphicsEnv::setDriverPathAndSphalLibraries(const std::string& path,
+                                                 const std::string& sphalLibraries) {
     if (!mDriverPath.empty() || !mSphalLibraries.empty()) {
         ALOGV("ignoring attempt to change driver path from '%s' to '%s' or change sphal libraries "
               "from '%s' to '%s'",
@@ -174,6 +188,108 @@
     mSphalLibraries = sphalLibraries;
 }
 
+// Return true if all the required libraries from vndk and sphal namespace are
+// linked to the driver namespace correctly.
+bool GraphicsEnv::linkDriverNamespaceLocked(android_namespace_t* destNamespace,
+                                            android_namespace_t* vndkNamespace,
+                                            const std::string& sharedSphalLibraries) {
+    const std::string llndkLibraries = getSystemNativeLibraries(NativeLibrary::LLNDK);
+    if (llndkLibraries.empty()) {
+        return false;
+    }
+    if (!android_link_namespaces(destNamespace, nullptr, llndkLibraries.c_str())) {
+        ALOGE("Failed to link default namespace[%s]", dlerror());
+        return false;
+    }
+
+    const std::string vndkspLibraries = getSystemNativeLibraries(NativeLibrary::VNDKSP);
+    if (vndkspLibraries.empty()) {
+        return false;
+    }
+    if (!android_link_namespaces(destNamespace, vndkNamespace, vndkspLibraries.c_str())) {
+        ALOGE("Failed to link vndk namespace[%s]", dlerror());
+        return false;
+    }
+
+    if (sharedSphalLibraries.empty()) {
+        return true;
+    }
+
+    // Make additional libraries in sphal to be accessible
+    auto sphalNamespace = android_get_exported_namespace("sphal");
+    if (!sphalNamespace) {
+        ALOGE("Depend on these libraries[%s] in sphal, but failed to get sphal namespace",
+              sharedSphalLibraries.c_str());
+        return false;
+    }
+
+    if (!android_link_namespaces(destNamespace, sphalNamespace, sharedSphalLibraries.c_str())) {
+        ALOGE("Failed to link sphal namespace[%s]", dlerror());
+        return false;
+    }
+
+    return true;
+}
+
+android_namespace_t* GraphicsEnv::getDriverNamespace() {
+    std::lock_guard<std::mutex> lock(mNamespaceMutex);
+
+    if (mDriverNamespace) {
+        return mDriverNamespace;
+    }
+
+    if (mDriverPath.empty()) {
+        // For an application process, driver path is empty means this application is not opted in
+        // to use updatable driver. Application process doesn't have the ability to set up
+        // environment variables and hence before `getenv` call will return.
+        // For a process that is not an application process, if it's run from an environment,
+        // for example shell, where environment variables can be set, then it can opt into using
+        // udpatable driver by setting UPDATABLE_GFX_DRIVER to 1. By setting to 1 the developer
+        // driver will be used currently.
+        // TODO(b/159240322) Support the production updatable driver.
+        const char* id = getenv("UPDATABLE_GFX_DRIVER");
+        if (id == nullptr || std::strcmp(id, "1") != 0) {
+            return nullptr;
+        }
+        const sp<IGpuService> gpuService = getGpuService();
+        if (!gpuService) {
+            return nullptr;
+        }
+        mDriverPath = gpuService->getUpdatableDriverPath();
+        if (mDriverPath.empty()) {
+            return nullptr;
+        }
+        mDriverPath.append(UPDATABLE_DRIVER_ABI);
+        ALOGI("Driver path is setup via UPDATABLE_GFX_DRIVER: %s", mDriverPath.c_str());
+    }
+
+    auto vndkNamespace = android_get_exported_namespace("vndk");
+    if (!vndkNamespace) {
+        return nullptr;
+    }
+
+    mDriverNamespace = android_create_namespace("updatable gfx driver",
+                                                mDriverPath.c_str(), // ld_library_path
+                                                mDriverPath.c_str(), // default_library_path
+                                                ANDROID_NAMESPACE_TYPE_ISOLATED,
+                                                nullptr, // permitted_when_isolated_path
+                                                nullptr);
+
+    if (!linkDriverNamespaceLocked(mDriverNamespace, vndkNamespace, mSphalLibraries)) {
+        mDriverNamespace = nullptr;
+    }
+
+    return mDriverNamespace;
+}
+
+std::string GraphicsEnv::getDriverPath() const {
+    return mDriverPath;
+}
+
+/**
+ * APIs for GpuStats
+ */
+
 void GraphicsEnv::hintActivityLaunch() {
     ATRACE_CALL();
 
@@ -328,16 +444,6 @@
                         extensionHashes, numStats);
 }
 
-static sp<IGpuService> getGpuService() {
-    static const sp<IBinder> binder = defaultServiceManager()->checkService(String16("gpu"));
-    if (!binder) {
-        ALOGE("Failed to get gpu service");
-        return nullptr;
-    }
-
-    return interface_cast<IGpuService>(binder);
-}
-
 bool GraphicsEnv::readyToSendGpuStatsLocked() {
     // Only send stats for processes having at least one activity launched and that process doesn't
     // skip the GraphicsEnvironment setup.
@@ -410,86 +516,140 @@
     return true;
 }
 
-void* GraphicsEnv::loadLibrary(std::string name) {
-    const android_dlextinfo dlextinfo = {
-            .flags = ANDROID_DLEXT_USE_NAMESPACE,
-            .library_namespace = getAngleNamespace(),
-    };
-
-    std::string libName = std::string("lib") + name + "_angle.so";
-
-    void* so = android_dlopen_ext(libName.c_str(), RTLD_LOCAL | RTLD_NOW, &dlextinfo);
-
-    if (so) {
-        ALOGD("dlopen_ext from APK (%s) success at %p", libName.c_str(), so);
-        return so;
-    } else {
-        ALOGE("dlopen_ext(\"%s\") failed: %s", libName.c_str(), dlerror());
-    }
-
-    return nullptr;
-}
-
-bool GraphicsEnv::shouldUseAngle(std::string appName) {
-    if (appName != mAngleAppName) {
-        // Make sure we are checking the app we were init'ed for
-        ALOGE("App name does not match: expected '%s', got '%s'", mAngleAppName.c_str(),
-              appName.c_str());
-        return false;
-    }
-
-    return shouldUseAngle();
-}
+/**
+ * APIs for ANGLE
+ */
 
 bool GraphicsEnv::shouldUseAngle() {
     // Make sure we are init'ed
-    if (mAngleAppName.empty()) {
-        ALOGV("App name is empty. setAngleInfo() has not been called to enable ANGLE.");
+    if (mPackageName.empty()) {
+        ALOGV("Package name is empty. setAngleInfo() has not been called to enable ANGLE.");
         return false;
     }
 
-    return (mUseAngle == YES) ? true : false;
+    return mShouldUseAngle;
 }
 
-void GraphicsEnv::updateUseAngle() {
-    const char* ANGLE_PREFER_ANGLE = "angle";
-    const char* ANGLE_PREFER_NATIVE = "native";
-
-    mUseAngle = NO;
-    if (mAngleDeveloperOptIn == ANGLE_PREFER_ANGLE) {
-        ALOGV("User set \"Developer Options\" to force the use of ANGLE");
-        mUseAngle = YES;
-    } else if (mAngleDeveloperOptIn == ANGLE_PREFER_NATIVE) {
-        ALOGV("User set \"Developer Options\" to force the use of Native");
-    } else {
-        ALOGV("User set invalid \"Developer Options\": '%s'", mAngleDeveloperOptIn.c_str());
-    }
-}
-
-void GraphicsEnv::setAngleInfo(const std::string path, const std::string appName,
-                               const std::string developerOptIn,
+// Set ANGLE information.
+// If path is "system", it means system ANGLE must be used for the process.
+// If shouldUseNativeDriver is true, it means native GLES drivers must be used for the process.
+// If path is set to nonempty and shouldUseNativeDriver is true, ANGLE will be used regardless.
+void GraphicsEnv::setAngleInfo(const std::string& path, const bool shouldUseNativeDriver,
+                               const std::string& packageName,
                                const std::vector<std::string> eglFeatures) {
-    if (mUseAngle != UNKNOWN) {
-        // We've already figured out an answer for this app, so just return.
-        ALOGV("Already evaluated the rules file for '%s': use ANGLE = %s", appName.c_str(),
-              (mUseAngle == YES) ? "true" : "false");
+    if (mShouldUseAngle) {
+        // ANGLE is already set up for this application process, even if the application
+        // needs to switch from apk to system or vice versa, the application process must
+        // be killed and relaunch so that the loader can properly load ANGLE again.
+        // The architecture does not support runtime switch between drivers, so just return.
+        ALOGE("ANGLE is already set for %s", packageName.c_str());
         return;
     }
 
     mAngleEglFeatures = std::move(eglFeatures);
-
     ALOGV("setting ANGLE path to '%s'", path.c_str());
-    mAnglePath = path;
-    ALOGV("setting ANGLE app name to '%s'", appName.c_str());
-    mAngleAppName = appName;
-    ALOGV("setting ANGLE application opt-in to '%s'", developerOptIn.c_str());
-    mAngleDeveloperOptIn = developerOptIn;
-
-    // Update the current status of whether we should use ANGLE or not
-    updateUseAngle();
+    mAnglePath = std::move(path);
+    ALOGV("setting app package name to '%s'", packageName.c_str());
+    mPackageName = std::move(packageName);
+    if (mAnglePath == "system") {
+        mShouldUseSystemAngle = true;
+    }
+    if (!mAnglePath.empty()) {
+        mShouldUseAngle = true;
+    }
+    mShouldUseNativeDriver = shouldUseNativeDriver;
 }
 
-void GraphicsEnv::setLayerPaths(NativeLoaderNamespace* appNamespace, const std::string layerPaths) {
+std::string& GraphicsEnv::getPackageName() {
+    return mPackageName;
+}
+
+const std::vector<std::string>& GraphicsEnv::getAngleEglFeatures() {
+    return mAngleEglFeatures;
+}
+
+android_namespace_t* GraphicsEnv::getAngleNamespace() {
+    std::lock_guard<std::mutex> lock(mNamespaceMutex);
+
+    if (mAngleNamespace) {
+        return mAngleNamespace;
+    }
+
+    // If ANGLE path is not set, it means ANGLE should not be used for this process;
+    // or if ANGLE path is set and set to use system ANGLE, then a namespace is not needed
+    // because:
+    //     1) if the default OpenGL ES driver is already ANGLE, then the loader will skip;
+    //     2) if the default OpenGL ES driver is native, then there's no symbol conflict;
+    //     3) if there's no OpenGL ES driver is preloaded, then there's no symbol conflict.
+    if (mAnglePath.empty() || mShouldUseSystemAngle) {
+        ALOGV("mAnglePath is empty or use system ANGLE, abort creating ANGLE namespace");
+        return nullptr;
+    }
+
+    // Construct the search paths for system ANGLE.
+    const char* const defaultLibraryPaths =
+#if defined(__LP64__)
+            "/vendor/lib64/egl:/system/lib64";
+#else
+            "/vendor/lib/egl:/system/lib";
+#endif
+
+    // If the application process will run on top of system ANGLE, construct the namespace
+    // with sphal namespace being the parent namespace so that search paths and libraries
+    // are properly inherited.
+    mAngleNamespace =
+            android_create_namespace("ANGLE",
+                                     mShouldUseSystemAngle ? defaultLibraryPaths
+                                                           : mAnglePath.c_str(), // ld_library_path
+                                     mShouldUseSystemAngle
+                                             ? defaultLibraryPaths
+                                             : mAnglePath.c_str(), // default_library_path
+                                     ANDROID_NAMESPACE_TYPE_SHARED_ISOLATED,
+                                     nullptr, // permitted_when_isolated_path
+                                     mShouldUseSystemAngle ? android_get_exported_namespace("sphal")
+                                                           : nullptr); // parent
+
+    ALOGD_IF(!mAngleNamespace, "Could not create ANGLE namespace from default");
+
+    if (!mShouldUseSystemAngle) {
+        return mAngleNamespace;
+    }
+
+    auto vndkNamespace = android_get_exported_namespace("vndk");
+    if (!vndkNamespace) {
+        return nullptr;
+    }
+
+    if (!linkDriverNamespaceLocked(mAngleNamespace, vndkNamespace, "")) {
+        mAngleNamespace = nullptr;
+    }
+
+    return mAngleNamespace;
+}
+
+void GraphicsEnv::nativeToggleAngleAsSystemDriver(bool enabled) {
+    const sp<IGpuService> gpuService = getGpuService();
+    if (!gpuService) {
+        ALOGE("No GPU service");
+        return;
+    }
+    gpuService->toggleAngleAsSystemDriver(enabled);
+}
+
+bool GraphicsEnv::shouldUseSystemAngle() {
+    return mShouldUseSystemAngle;
+}
+
+bool GraphicsEnv::shouldUseNativeDriver() {
+    return mShouldUseNativeDriver;
+}
+
+/**
+ * APIs for debuggable layers
+ */
+
+void GraphicsEnv::setLayerPaths(NativeLoaderNamespace* appNamespace,
+                                const std::string& layerPaths) {
     if (mLayerPaths.empty()) {
         mLayerPaths = layerPaths;
         mAppNamespace = appNamespace;
@@ -503,14 +663,6 @@
     return mAppNamespace;
 }
 
-std::string& GraphicsEnv::getAngleAppName() {
-    return mAngleAppName;
-}
-
-const std::vector<std::string>& GraphicsEnv::getAngleEglFeatures() {
-    return mAngleEglFeatures;
-}
-
 const std::string& GraphicsEnv::getLayerPaths() {
     return mLayerPaths;
 }
@@ -523,141 +675,12 @@
     return mDebugLayersGLES;
 }
 
-void GraphicsEnv::setDebugLayers(const std::string layers) {
+void GraphicsEnv::setDebugLayers(const std::string& layers) {
     mDebugLayers = layers;
 }
 
-void GraphicsEnv::setDebugLayersGLES(const std::string layers) {
+void GraphicsEnv::setDebugLayersGLES(const std::string& layers) {
     mDebugLayersGLES = layers;
 }
 
-// Return true if all the required libraries from vndk and sphal namespace are
-// linked to the updatable gfx driver namespace correctly.
-bool GraphicsEnv::linkDriverNamespaceLocked(android_namespace_t* vndkNamespace) {
-    const std::string llndkLibraries = getSystemNativeLibraries(NativeLibrary::LLNDK);
-    if (llndkLibraries.empty()) {
-        return false;
-    }
-    if (!android_link_namespaces(mDriverNamespace, nullptr, llndkLibraries.c_str())) {
-        ALOGE("Failed to link default namespace[%s]", dlerror());
-        return false;
-    }
-
-    const std::string vndkspLibraries = getSystemNativeLibraries(NativeLibrary::VNDKSP);
-    if (vndkspLibraries.empty()) {
-        return false;
-    }
-    if (!android_link_namespaces(mDriverNamespace, vndkNamespace, vndkspLibraries.c_str())) {
-        ALOGE("Failed to link vndk namespace[%s]", dlerror());
-        return false;
-    }
-
-    if (mSphalLibraries.empty()) {
-        return true;
-    }
-
-    // Make additional libraries in sphal to be accessible
-    auto sphalNamespace = android_get_exported_namespace("sphal");
-    if (!sphalNamespace) {
-        ALOGE("Depend on these libraries[%s] in sphal, but failed to get sphal namespace",
-              mSphalLibraries.c_str());
-        return false;
-    }
-
-    if (!android_link_namespaces(mDriverNamespace, sphalNamespace, mSphalLibraries.c_str())) {
-        ALOGE("Failed to link sphal namespace[%s]", dlerror());
-        return false;
-    }
-
-    return true;
-}
-
-android_namespace_t* GraphicsEnv::getDriverNamespace() {
-    std::lock_guard<std::mutex> lock(mNamespaceMutex);
-
-    if (mDriverNamespace) {
-        return mDriverNamespace;
-    }
-
-    if (mDriverPath.empty()) {
-        // For an application process, driver path is empty means this application is not opted in
-        // to use updatable driver. Application process doesn't have the ability to set up
-        // environment variables and hence before `getenv` call will return.
-        // For a process that is not an application process, if it's run from an environment,
-        // for example shell, where environment variables can be set, then it can opt into using
-        // udpatable driver by setting UPDATABLE_GFX_DRIVER to 1. By setting to 1 the developer
-        // driver will be used currently.
-        // TODO(b/159240322) Support the production updatable driver.
-        const char* id = getenv("UPDATABLE_GFX_DRIVER");
-        if (id == nullptr || std::strcmp(id, "1")) {
-            return nullptr;
-        }
-        const sp<IGpuService> gpuService = getGpuService();
-        if (!gpuService) {
-            return nullptr;
-        }
-        mDriverPath = gpuService->getUpdatableDriverPath();
-        if (mDriverPath.empty()) {
-            return nullptr;
-        }
-        mDriverPath.append(UPDATABLE_DRIVER_ABI);
-        ALOGI("Driver path is setup via UPDATABLE_GFX_DRIVER: %s", mDriverPath.c_str());
-    }
-
-    auto vndkNamespace = android_get_exported_namespace("vndk");
-    if (!vndkNamespace) {
-        return nullptr;
-    }
-
-    mDriverNamespace = android_create_namespace("gfx driver",
-                                                mDriverPath.c_str(), // ld_library_path
-                                                mDriverPath.c_str(), // default_library_path
-                                                ANDROID_NAMESPACE_TYPE_ISOLATED,
-                                                nullptr, // permitted_when_isolated_path
-                                                nullptr);
-
-    if (!linkDriverNamespaceLocked(vndkNamespace)) {
-        mDriverNamespace = nullptr;
-    }
-
-    return mDriverNamespace;
-}
-
-std::string GraphicsEnv::getDriverPath() const {
-    return mDriverPath;
-}
-
-android_namespace_t* GraphicsEnv::getAngleNamespace() {
-    std::lock_guard<std::mutex> lock(mNamespaceMutex);
-
-    if (mAngleNamespace) {
-        return mAngleNamespace;
-    }
-
-    if (mAnglePath.empty()) {
-        ALOGV("mAnglePath is empty, not creating ANGLE namespace");
-        return nullptr;
-    }
-
-    mAngleNamespace = android_create_namespace("ANGLE",
-                                               nullptr,            // ld_library_path
-                                               mAnglePath.c_str(), // default_library_path
-                                               ANDROID_NAMESPACE_TYPE_SHARED_ISOLATED,
-                                               nullptr, // permitted_when_isolated_path
-                                               nullptr);
-
-    ALOGD_IF(!mAngleNamespace, "Could not create ANGLE namespace from default");
-
-    return mAngleNamespace;
-}
-
-void GraphicsEnv::nativeToggleAngleAsSystemDriver(bool enabled) {
-    const sp<IGpuService> gpuService = getGpuService();
-    if (!gpuService) {
-        ALOGE("No GPU service");
-        return;
-    }
-    gpuService->toggleAngleAsSystemDriver(enabled);
-}
-
 } // namespace android
diff --git a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
index 47607a0..9ebaf16 100644
--- a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
+++ b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
@@ -104,7 +104,7 @@
         GL_UPDATED = 2,
         VULKAN = 3,
         VULKAN_UPDATED = 4,
-        ANGLE = 5,
+        ANGLE = 5, // cover both system ANGLE and ANGLE APK
     };
 
     enum Stats {
diff --git a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
index f9b234a..6cce3f6 100644
--- a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
+++ b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
@@ -29,6 +29,11 @@
 
 struct NativeLoaderNamespace;
 
+// The GraphicsEnv is a singleton per application process and is used to properly set up the
+// graphics drivers for the application process during application starts. The architecture of
+// the graphics driver loader does not support runtime switch and only supports switch to different
+// graphics drivers when application process launches and hence the only way to switch to different
+// graphics drivers is to completely kill the application process and relaunch the application.
 class GraphicsEnv {
 public:
     static GraphicsEnv& getInstance();
@@ -55,7 +60,7 @@
     // Also set additional required sphal libraries to the linker for loading
     // graphics drivers. The string is a list of libraries separated by ':',
     // which is required by android_link_namespaces.
-    void setDriverPathAndSphalLibraries(const std::string path, const std::string sphalLibraries);
+    void setDriverPathAndSphalLibraries(const std::string& path, const std::string& sphalLibraries);
     // Get the updatable driver namespace.
     android_namespace_t* getDriverNamespace();
     std::string getDriverPath() const;
@@ -96,8 +101,6 @@
     /*
      * Apis for ANGLE
      */
-    // Check if the requested app should use ANGLE.
-    bool shouldUseAngle(std::string appName);
     // Check if this app process should use ANGLE.
     bool shouldUseAngle();
     // Set a search path for loading ANGLE libraries. The path is a list of
@@ -105,83 +108,102 @@
     // (libraries must be stored uncompressed and page aligned); such elements
     // in the search path must have a '!' after the zip filename, e.g.
     //     /system/app/ANGLEPrebuilt/ANGLEPrebuilt.apk!/lib/arm64-v8a
-    void setAngleInfo(const std::string path, const std::string appName, std::string devOptIn,
-                      const std::vector<std::string> eglFeatures);
+    // If the search patch is "system", then it means the system ANGLE should be used.
+    // If shouldUseNativeDriver is true, it means native GLES drivers must be used for the process.
+    // If path is set to nonempty and shouldUseNativeDriver is true, ANGLE will be used regardless.
+    void setAngleInfo(const std::string& path, const bool shouldUseNativeDriver,
+                      const std::string& packageName, const std::vector<std::string> eglFeatures);
     // Get the ANGLE driver namespace.
     android_namespace_t* getAngleNamespace();
-    // Get the app name for ANGLE debug message.
-    std::string& getAngleAppName();
-
+    // Get the app package name.
+    std::string& getPackageName();
     const std::vector<std::string>& getAngleEglFeatures();
+    // Set the persist.graphics.egl system property value.
+    void nativeToggleAngleAsSystemDriver(bool enabled);
+    bool shouldUseSystemAngle();
+    bool shouldUseNativeDriver();
 
     /*
      * Apis for debug layer
      */
     // Set additional layer search paths.
-    void setLayerPaths(NativeLoaderNamespace* appNamespace, const std::string layerPaths);
+    void setLayerPaths(NativeLoaderNamespace* appNamespace, const std::string& layerPaths);
     // Get the app namespace for loading layers.
     NativeLoaderNamespace* getAppNamespace();
     // Get additional layer search paths.
     const std::string& getLayerPaths();
     // Set the Vulkan debug layers.
-    void setDebugLayers(const std::string layers);
+    void setDebugLayers(const std::string& layers);
     // Set the GL debug layers.
-    void setDebugLayersGLES(const std::string layers);
+    void setDebugLayersGLES(const std::string& layers);
     // Get the debug layers to load.
     const std::string& getDebugLayers();
     // Get the debug layers to load.
     const std::string& getDebugLayersGLES();
-    // Set the persist.graphics.egl system property value.
-    void nativeToggleAngleAsSystemDriver(bool enabled);
 
 private:
-    enum UseAngle { UNKNOWN, YES, NO };
-
-    // Load requested ANGLE library.
-    void* loadLibrary(std::string name);
-    // Update whether ANGLE should be used.
-    void updateUseAngle();
     // Link updatable driver namespace with llndk and vndk-sp libs.
-    bool linkDriverNamespaceLocked(android_namespace_t* vndkNamespace);
+    bool linkDriverNamespaceLocked(android_namespace_t* destNamespace,
+                                   android_namespace_t* vndkNamespace,
+                                   const std::string& sharedSphalLibraries);
     // Check whether this process is ready to send stats.
     bool readyToSendGpuStatsLocked();
     // Send the initial complete GpuStats to GpuService.
     void sendGpuStatsLocked(GpuStatsInfo::Api api, bool isDriverLoaded, int64_t driverLoadingTime);
 
     GraphicsEnv() = default;
+
+    // This mutex protects the namespace creation.
+    std::mutex mNamespaceMutex;
+
+    /**
+     * Updatable driver variables.
+     */
     // Path to updatable driver libs.
     std::string mDriverPath;
     // Path to additional sphal libs linked to updatable driver namespace.
     std::string mSphalLibraries;
+    // Updatable driver namespace.
+    android_namespace_t* mDriverNamespace = nullptr;
+
+    /**
+     * ANGLE variables.
+     */
+    // Path to ANGLE libs.
+    std::string mAnglePath;
+    // App's package name.
+    std::string mPackageName;
+    // ANGLE EGL features;
+    std::vector<std::string> mAngleEglFeatures;
+    // Whether ANGLE should be used.
+    bool mShouldUseAngle = false;
+    // Whether loader should load system ANGLE.
+    bool mShouldUseSystemAngle = false;
+    // Whether loader should load native GLES driver.
+    bool mShouldUseNativeDriver = false;
+    // ANGLE namespace.
+    android_namespace_t* mAngleNamespace = nullptr;
+
+    /**
+     * GPU metrics.
+     */
     // This mutex protects mGpuStats and get gpuservice call.
     std::mutex mStatsLock;
     // Cache the activity launch info
     bool mActivityLaunched = false;
     // Information bookkept for GpuStats.
     GpuStatsInfo mGpuStats;
-    // Path to ANGLE libs.
-    std::string mAnglePath;
-    // This App's name.
-    std::string mAngleAppName;
-    // ANGLE developer opt in status.
-    std::string mAngleDeveloperOptIn;
-    // ANGLE EGL features;
-    std::vector<std::string> mAngleEglFeatures;
-    // Use ANGLE flag.
-    UseAngle mUseAngle = UNKNOWN;
+
+    /**
+     * Debug layers.
+     */
     // Vulkan debug layers libs.
     std::string mDebugLayers;
     // GL debug layers libs.
     std::string mDebugLayersGLES;
     // Additional debug layers search path.
     std::string mLayerPaths;
-    // This mutex protects the namespace creation.
-    std::mutex mNamespaceMutex;
-    // Updatable driver namespace.
-    android_namespace_t* mDriverNamespace = nullptr;
-    // ANGLE namespace.
-    android_namespace_t* mAngleNamespace = nullptr;
-    // This App's namespace.
+    // This App's namespace to open native libraries.
     NativeLoaderNamespace* mAppNamespace = nullptr;
 };
 
diff --git a/libs/gui/BufferQueueConsumer.cpp b/libs/gui/BufferQueueConsumer.cpp
index 5b34ba1..b6a47fb 100644
--- a/libs/gui/BufferQueueConsumer.cpp
+++ b/libs/gui/BufferQueueConsumer.cpp
@@ -318,35 +318,44 @@
     ATRACE_CALL();
     ATRACE_BUFFER_INDEX(slot);
     BQ_LOGV("detachBuffer: slot %d", slot);
-    std::lock_guard<std::mutex> lock(mCore->mMutex);
+    sp<IProducerListener> listener;
+    {
+        std::lock_guard<std::mutex> lock(mCore->mMutex);
 
-    if (mCore->mIsAbandoned) {
-        BQ_LOGE("detachBuffer: BufferQueue has been abandoned");
-        return NO_INIT;
+        if (mCore->mIsAbandoned) {
+            BQ_LOGE("detachBuffer: BufferQueue has been abandoned");
+            return NO_INIT;
+        }
+
+        if (mCore->mSharedBufferMode || slot == mCore->mSharedBufferSlot) {
+            BQ_LOGE("detachBuffer: detachBuffer not allowed in shared buffer mode");
+            return BAD_VALUE;
+        }
+
+        if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
+            BQ_LOGE("detachBuffer: slot index %d out of range [0, %d)",
+                    slot, BufferQueueDefs::NUM_BUFFER_SLOTS);
+            return BAD_VALUE;
+        } else if (!mSlots[slot].mBufferState.isAcquired()) {
+            BQ_LOGE("detachBuffer: slot %d is not owned by the consumer "
+                    "(state = %s)", slot, mSlots[slot].mBufferState.string());
+            return BAD_VALUE;
+        }
+        if (mCore->mBufferReleasedCbEnabled) {
+            listener = mCore->mConnectedProducerListener;
+        }
+
+        mSlots[slot].mBufferState.detachConsumer();
+        mCore->mActiveBuffers.erase(slot);
+        mCore->mFreeSlots.insert(slot);
+        mCore->clearBufferSlotLocked(slot);
+        mCore->mDequeueCondition.notify_all();
+        VALIDATE_CONSISTENCY();
     }
 
-    if (mCore->mSharedBufferMode || slot == mCore->mSharedBufferSlot) {
-        BQ_LOGE("detachBuffer: detachBuffer not allowed in shared buffer mode");
-        return BAD_VALUE;
+    if (listener) {
+        listener->onBufferDetached(slot);
     }
-
-    if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
-        BQ_LOGE("detachBuffer: slot index %d out of range [0, %d)",
-                slot, BufferQueueDefs::NUM_BUFFER_SLOTS);
-        return BAD_VALUE;
-    } else if (!mSlots[slot].mBufferState.isAcquired()) {
-        BQ_LOGE("detachBuffer: slot %d is not owned by the consumer "
-                "(state = %s)", slot, mSlots[slot].mBufferState.string());
-        return BAD_VALUE;
-    }
-
-    mSlots[slot].mBufferState.detachConsumer();
-    mCore->mActiveBuffers.erase(slot);
-    mCore->mFreeSlots.insert(slot);
-    mCore->clearBufferSlotLocked(slot);
-    mCore->mDequeueCondition.notify_all();
-    VALIDATE_CONSISTENCY();
-
     return NO_ERROR;
 }
 
diff --git a/libs/gui/include/gui/IProducerListener.h b/libs/gui/include/gui/IProducerListener.h
index f7ffbb9..b15f501 100644
--- a/libs/gui/include/gui/IProducerListener.h
+++ b/libs/gui/include/gui/IProducerListener.h
@@ -49,6 +49,12 @@
     // onBuffersFreed is called from IGraphicBufferConsumer::discardFreeBuffers
     // to notify the producer that certain free buffers are discarded by the consumer.
     virtual void onBuffersDiscarded(const std::vector<int32_t>& slots) = 0; // Asynchronous
+    // onBufferDetached is called from IGraphicBufferConsumer::detachBuffer to
+    // notify the producer that a buffer slot is free and ready to be dequeued.
+    //
+    // This is called without any lock held and can be called concurrently by
+    // multiple threads.
+    virtual void onBufferDetached(int /*slot*/) {} // Asynchronous
 };
 
 #ifndef NO_BINDER
diff --git a/libs/gui/tests/BufferQueue_test.cpp b/libs/gui/tests/BufferQueue_test.cpp
index 2f1fd3e..185ff83 100644
--- a/libs/gui/tests/BufferQueue_test.cpp
+++ b/libs/gui/tests/BufferQueue_test.cpp
@@ -1151,6 +1151,76 @@
     ASSERT_EQ(true, output.bufferReplaced);
 }
 
+struct BufferDetachedListener : public BnProducerListener {
+public:
+    BufferDetachedListener() = default;
+    virtual ~BufferDetachedListener() = default;
+
+    virtual void onBufferReleased() {}
+    virtual bool needsReleaseNotify() { return true; }
+    virtual void onBufferDetached(int slot) {
+        mDetachedSlots.push_back(slot);
+    }
+    const std::vector<int>& getDetachedSlots() const { return mDetachedSlots; }
+private:
+    std::vector<int> mDetachedSlots;
+};
+
+TEST_F(BufferQueueTest, TestConsumerDetachProducerListener) {
+    createBufferQueue();
+    sp<MockConsumer> mc(new MockConsumer);
+    ASSERT_EQ(OK, mConsumer->consumerConnect(mc, true));
+    IGraphicBufferProducer::QueueBufferOutput output;
+    sp<BufferDetachedListener> pl(new BufferDetachedListener);
+    ASSERT_EQ(OK, mProducer->connect(pl, NATIVE_WINDOW_API_CPU, true, &output));
+    ASSERT_EQ(OK, mProducer->setDequeueTimeout(0));
+    ASSERT_EQ(OK, mConsumer->setMaxAcquiredBufferCount(1));
+
+    sp<Fence> fence = Fence::NO_FENCE;
+    sp<GraphicBuffer> buffer = nullptr;
+    IGraphicBufferProducer::QueueBufferInput input(0ull, true,
+        HAL_DATASPACE_UNKNOWN, Rect::INVALID_RECT,
+        NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, Fence::NO_FENCE);
+
+    int slots[2] = {};
+    status_t result = OK;
+    ASSERT_EQ(OK, mProducer->setMaxDequeuedBufferCount(2));
+
+    result = mProducer->dequeueBuffer(&slots[0], &fence, 0, 0, 0,
+                                      GRALLOC_USAGE_SW_READ_RARELY, nullptr, nullptr);
+    ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION, result);
+    ASSERT_EQ(OK, mProducer->requestBuffer(slots[0], &buffer));
+
+    result = mProducer->dequeueBuffer(&slots[1], &fence, 0, 0, 0,
+                                      GRALLOC_USAGE_SW_READ_RARELY, nullptr, nullptr);
+    ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION, result);
+    ASSERT_EQ(OK, mProducer->requestBuffer(slots[1], &buffer));
+
+    // Queue & detach one from two dequeued buffes.
+    ASSERT_EQ(OK, mProducer->queueBuffer(slots[1], input, &output));
+    BufferItem item{};
+    ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, 0));
+    ASSERT_EQ(OK, mConsumer->detachBuffer(item.mSlot));
+
+    // Check whether the slot from IProducerListener is same to the detached slot.
+    ASSERT_EQ(pl->getDetachedSlots().size(), 1);
+    ASSERT_EQ(pl->getDetachedSlots()[0], slots[1]);
+
+    // Dequeue another buffer.
+    int slot;
+    result = mProducer->dequeueBuffer(&slot, &fence, 0, 0, 0,
+                                      GRALLOC_USAGE_SW_READ_RARELY, nullptr, nullptr);
+    ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION, result);
+    ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
+
+    // Dequeue should fail here, since we dequeued 3 buffers and one buffer was
+    // detached from consumer(Two buffers are dequeued, and the current max
+    // dequeued buffer count is two).
+    result = mProducer->dequeueBuffer(&slot, &fence, 0, 0, 0,
+                                      GRALLOC_USAGE_SW_READ_RARELY, nullptr, nullptr);
+    ASSERT_TRUE(result == WOULD_BLOCK || result == TIMED_OUT || result == INVALID_OPERATION);
+}
+
 TEST_F(BufferQueueTest, TestStaleBufferHandleSentAfterDisconnect) {
     createBufferQueue();
     sp<MockConsumer> mc(new MockConsumer);
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index f6b4648..fd4d5f0 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -424,7 +424,7 @@
     msg->getSanitizedCopy(&cleanMsg);
     ssize_t nWrite;
     do {
-        nWrite = ::send(getFd(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
+        nWrite = ::send(getFd().get(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
     } while (nWrite == -1 && errno == EINTR);
 
     if (nWrite < 0) {
@@ -455,7 +455,7 @@
 status_t InputChannel::receiveMessage(InputMessage* msg) {
     ssize_t nRead;
     do {
-        nRead = ::recv(getFd(), msg, sizeof(InputMessage), MSG_DONTWAIT);
+        nRead = ::recv(getFd().get(), msg, sizeof(InputMessage), MSG_DONTWAIT);
     } while (nRead == -1 && errno == EINTR);
 
     if (nRead < 0) {
@@ -521,7 +521,7 @@
 }
 
 base::unique_fd InputChannel::dupFd() const {
-    android::base::unique_fd newFd(::dup(getFd()));
+    base::unique_fd newFd(::dup(getFd().get()));
     if (!newFd.ok()) {
         ALOGE("Could not duplicate fd %i for channel %s: %s", getFd().get(), getName().c_str(),
               strerror(errno));
diff --git a/libs/input/MotionPredictor.cpp b/libs/input/MotionPredictor.cpp
index 3037573..abcca34 100644
--- a/libs/input/MotionPredictor.cpp
+++ b/libs/input/MotionPredictor.cpp
@@ -176,12 +176,13 @@
     int64_t predictionTime = mBuffers->lastTimestamp();
     const int64_t futureTime = timestamp + mPredictionTimestampOffsetNanos;
 
-    for (int i = 0; i < predictedR.size() && predictionTime <= futureTime; ++i) {
+    for (size_t i = 0; i < static_cast<size_t>(predictedR.size()) && predictionTime <= futureTime;
+         ++i) {
         const TfLiteMotionPredictorSample::Point point =
                 convertPrediction(axisFrom, axisTo, predictedR[i], predictedPhi[i]);
         // TODO(b/266747654): Stop predictions if confidence is < some threshold.
 
-        ALOGD_IF(isDebug(), "prediction %d: %f, %f", i, point.x, point.y);
+        ALOGD_IF(isDebug(), "prediction %zu: %f, %f", i, point.x, point.y);
         PointerCoords coords;
         coords.clear();
         coords.setAxisValue(AMOTION_EVENT_AXIS_X, point.x);
diff --git a/libs/input/TfLiteMotionPredictor.cpp b/libs/input/TfLiteMotionPredictor.cpp
index 85fa176..8d10ff5 100644
--- a/libs/input/TfLiteMotionPredictor.cpp
+++ b/libs/input/TfLiteMotionPredictor.cpp
@@ -115,8 +115,7 @@
                         tensor->name, TfLiteTypeGetName(tensor->type), TfLiteTypeGetName(type));
 
     LOG_ALWAYS_FATAL_IF(!tensor->data.data);
-    return {reinterpret_cast<T*>(tensor->data.data),
-            static_cast<typename std::span<T>::index_type>(tensor->bytes / sizeof(T))};
+    return std::span<T>(reinterpret_cast<T*>(tensor->data.data), tensor->bytes / sizeof(T));
 }
 
 // Verifies that a tensor exists and has an underlying buffer of type T.
diff --git a/libs/input/tests/TfLiteMotionPredictor_test.cpp b/libs/input/tests/TfLiteMotionPredictor_test.cpp
index b5ed9e4..c3ac0b7 100644
--- a/libs/input/tests/TfLiteMotionPredictor_test.cpp
+++ b/libs/input/tests/TfLiteMotionPredictor_test.cpp
@@ -130,19 +130,19 @@
     std::unique_ptr<TfLiteMotionPredictorModel> model = TfLiteMotionPredictorModel::create();
     ASSERT_GT(model->inputLength(), 0u);
 
-    const int inputLength = model->inputLength();
-    ASSERT_EQ(inputLength, model->inputR().size());
-    ASSERT_EQ(inputLength, model->inputPhi().size());
-    ASSERT_EQ(inputLength, model->inputPressure().size());
-    ASSERT_EQ(inputLength, model->inputOrientation().size());
-    ASSERT_EQ(inputLength, model->inputTilt().size());
+    const size_t inputLength = model->inputLength();
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputR().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputPhi().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputPressure().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputOrientation().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputTilt().size()));
 
     ASSERT_TRUE(model->invoke());
 
-    const int outputLength = model->outputLength();
-    ASSERT_EQ(outputLength, model->outputR().size());
-    ASSERT_EQ(outputLength, model->outputPhi().size());
-    ASSERT_EQ(outputLength, model->outputPressure().size());
+    const size_t outputLength = model->outputLength();
+    ASSERT_EQ(outputLength, static_cast<size_t>(model->outputR().size()));
+    ASSERT_EQ(outputLength, static_cast<size_t>(model->outputPhi().size()));
+    ASSERT_EQ(outputLength, static_cast<size_t>(model->outputPressure().size()));
 }
 
 TEST(TfLiteMotionPredictorTest, ModelOutput) {
diff --git a/libs/nativewindow/rust/Android.bp b/libs/nativewindow/rust/Android.bp
index dc1575c..90d0a8e 100644
--- a/libs/nativewindow/rust/Android.bp
+++ b/libs/nativewindow/rust/Android.bp
@@ -19,7 +19,7 @@
 }
 
 rust_bindgen {
-    name: "libnativewindow_bindgen",
+    name: "libnativewindow_bindgen_internal",
     crate_name: "nativewindow_bindgen",
     wrapper_src: "sys/nativewindow_bindings.h",
     source_stem: "bindings",
@@ -28,13 +28,21 @@
         "--bitfield-enum=AHardwareBuffer_UsageFlags",
 
         "--allowlist-file=.*/nativewindow/include/.*\\.h",
+        "--blocklist-type",
+        "AParcel",
+        "--raw-line",
+        "use binder::unstable_api::AParcel;",
 
         "--with-derive-eq",
         "--with-derive-partialeq",
     ],
     shared_libs: [
+        "libbinder_ndk",
         "libnativewindow",
     ],
+    rustlibs: [
+        "libbinder_rs",
+    ],
 
     // Currently necessary for host builds
     // TODO(b/31559095): bionic on host should define this
@@ -44,12 +52,40 @@
         },
     },
     min_sdk_version: "VanillaIceCream",
+    vendor_available: true,
+}
+
+rust_library {
+    name: "libnativewindow_bindgen",
+    crate_name: "nativewindow_bindgen",
+    srcs: [":libnativewindow_bindgen_internal"],
+    shared_libs: [
+        "libbinder_ndk",
+        "libnativewindow",
+    ],
+    rustlibs: [
+        "libbinder_rs",
+    ],
+    lints: "none",
+    clippy_lints: "none",
+    // Currently necessary for host builds
+    // TODO(b/31559095): bionic on host should define this
+    target: {
+        darwin: {
+            enabled: false,
+        },
+    },
+    min_sdk_version: "VanillaIceCream",
+    vendor_available: true,
 }
 
 rust_test {
     name: "libnativewindow_bindgen_test",
-    srcs: [":libnativewindow_bindgen"],
+    srcs: [":libnativewindow_bindgen_internal"],
     crate_name: "nativewindow_bindgen_test",
+    rustlibs: [
+        "libbinder_rs",
+    ],
     test_suites: ["general-tests"],
     auto_gen_config: true,
     clippy_lints: "none",
@@ -60,6 +96,7 @@
     name: "libnativewindow_defaults",
     srcs: ["src/lib.rs"],
     rustlibs: [
+        "libbinder_rs",
         "libnativewindow_bindgen",
     ],
 }
@@ -77,6 +114,7 @@
         },
     },
     min_sdk_version: "VanillaIceCream",
+    vendor_available: true,
 }
 
 rust_test {
diff --git a/libs/nativewindow/rust/src/lib.rs b/libs/nativewindow/rust/src/lib.rs
index 6eb3bbc..6f86c4a 100644
--- a/libs/nativewindow/rust/src/lib.rs
+++ b/libs/nativewindow/rust/src/lib.rs
@@ -16,13 +16,22 @@
 
 extern crate nativewindow_bindgen as ffi;
 
-pub use ffi::{AHardwareBuffer, AHardwareBuffer_Format, AHardwareBuffer_UsageFlags};
+pub use ffi::{AHardwareBuffer_Format, AHardwareBuffer_UsageFlags};
 
+use binder::{
+    binder_impl::{
+        BorrowedParcel, Deserialize, DeserializeArray, DeserializeOption, Serialize,
+        SerializeArray, SerializeOption, NON_NULL_PARCELABLE_FLAG, NULL_PARCELABLE_FLAG,
+    },
+    unstable_api::{status_result, AsNative},
+    StatusCode,
+};
+use ffi::{AHardwareBuffer, AHardwareBuffer_readFromParcel, AHardwareBuffer_writeToParcel};
 use std::fmt::{self, Debug, Formatter};
 use std::mem::ManuallyDrop;
-use std::ptr::{self, NonNull};
+use std::ptr::{self, null_mut, NonNull};
 
-/// Wrapper around an opaque C AHardwareBuffer.
+/// Wrapper around an opaque C `AHardwareBuffer`.
 #[derive(PartialEq, Eq)]
 pub struct HardwareBuffer(NonNull<AHardwareBuffer>);
 
@@ -120,8 +129,11 @@
     /// Available since API level 31.
     pub fn id(&self) -> u64 {
         let mut out_id = 0;
-        // SAFETY: Neither pointers can be null.
-        let status = unsafe { ffi::AHardwareBuffer_getId(self.0.as_ref(), &mut out_id) };
+        // SAFETY: The AHardwareBuffer pointer we pass is guaranteed to be non-null and valid
+        // because it must have been allocated by `AHardwareBuffer_allocate`,
+        // `AHardwareBuffer_readFromParcel` or the caller of `from_raw` and we have not yet
+        // released it. The id pointer must be valid because it comes from a reference.
+        let status = unsafe { ffi::AHardwareBuffer_getId(self.0.as_ptr(), &mut out_id) };
         assert_eq!(status, 0, "id() failed for AHardwareBuffer with error code: {status}");
 
         out_id
@@ -176,9 +188,10 @@
 
 impl Drop for HardwareBuffer {
     fn drop(&mut self) {
-        // SAFETY: self.0 will never be null. AHardwareBuffers allocated from within Rust will have
-        // a refcount of one, and there is a safety warning on taking an AHardwareBuffer from a raw
-        // pointer requiring callers to ensure the refcount is managed appropriately.
+        // SAFETY: The AHardwareBuffer pointer we pass is guaranteed to be non-null and valid
+        // because it must have been allocated by `AHardwareBuffer_allocate`,
+        // `AHardwareBuffer_readFromParcel` or the caller of `from_raw` and we have not yet
+        // released it.
         unsafe { ffi::AHardwareBuffer_release(self.0.as_ptr()) }
     }
 }
@@ -197,6 +210,82 @@
     }
 }
 
+impl Serialize for HardwareBuffer {
+    fn serialize(&self, parcel: &mut BorrowedParcel) -> Result<(), StatusCode> {
+        SerializeOption::serialize_option(Some(self), parcel)
+    }
+}
+
+impl SerializeOption for HardwareBuffer {
+    fn serialize_option(
+        this: Option<&Self>,
+        parcel: &mut BorrowedParcel,
+    ) -> Result<(), StatusCode> {
+        if let Some(this) = this {
+            parcel.write(&NON_NULL_PARCELABLE_FLAG)?;
+
+            let status =
+            // SAFETY: The AHardwareBuffer pointer we pass is guaranteed to be non-null and valid
+            // because it must have been allocated by `AHardwareBuffer_allocate`,
+            // `AHardwareBuffer_readFromParcel` or the caller of `from_raw` and we have not yet
+            // released it.
+                unsafe { AHardwareBuffer_writeToParcel(this.0.as_ptr(), parcel.as_native_mut()) };
+            status_result(status)
+        } else {
+            parcel.write(&NULL_PARCELABLE_FLAG)
+        }
+    }
+}
+
+impl Deserialize for HardwareBuffer {
+    type UninitType = Option<Self>;
+
+    fn uninit() -> Option<Self> {
+        None
+    }
+
+    fn from_init(value: Self) -> Option<Self> {
+        Some(value)
+    }
+
+    fn deserialize(parcel: &BorrowedParcel) -> Result<Self, StatusCode> {
+        DeserializeOption::deserialize_option(parcel)
+            .transpose()
+            .unwrap_or(Err(StatusCode::UNEXPECTED_NULL))
+    }
+}
+
+impl DeserializeOption for HardwareBuffer {
+    fn deserialize_option(parcel: &BorrowedParcel) -> Result<Option<Self>, StatusCode> {
+        let present: i32 = parcel.read()?;
+        match present {
+            NULL_PARCELABLE_FLAG => Ok(None),
+            NON_NULL_PARCELABLE_FLAG => {
+                let mut buffer = null_mut();
+
+                let status =
+                // SAFETY: Both pointers must be valid because they are obtained from references.
+                // `AHardwareBuffer_readFromParcel` doesn't store them or do anything else special
+                // with them. If it returns success then it will have allocated a new
+                // `AHardwareBuffer` and incremented the reference count, so we can use it until we
+                // release it.
+                    unsafe { AHardwareBuffer_readFromParcel(parcel.as_native(), &mut buffer) };
+
+                status_result(status)?;
+
+                Ok(Some(Self(NonNull::new(buffer).expect(
+                    "AHardwareBuffer_readFromParcel returned success but didn't allocate buffer",
+                ))))
+            }
+            _ => Err(StatusCode::BAD_VALUE),
+        }
+    }
+}
+
+impl SerializeArray for HardwareBuffer {}
+
+impl DeserializeArray for HardwareBuffer {}
+
 // SAFETY: The underlying *AHardwareBuffers can be moved between threads.
 unsafe impl Send for HardwareBuffer {}
 
diff --git a/libs/nativewindow/rust/sys/nativewindow_bindings.h b/libs/nativewindow/rust/sys/nativewindow_bindings.h
index e652aee..4525a42 100644
--- a/libs/nativewindow/rust/sys/nativewindow_bindings.h
+++ b/libs/nativewindow/rust/sys/nativewindow_bindings.h
@@ -16,5 +16,6 @@
 
 #include <android/data_space.h>
 #include <android/hardware_buffer.h>
+#include <android/hardware_buffer_aidl.h>
 #include <android/hdr_metadata.h>
 #include <android/native_window.h>
diff --git a/libs/vibrator/OWNERS b/libs/vibrator/OWNERS
index d073e2b..c4de58a 100644
--- a/libs/vibrator/OWNERS
+++ b/libs/vibrator/OWNERS
@@ -1 +1,2 @@
+# Bug component: 345036
 include platform/frameworks/base:/services/core/java/com/android/server/vibrator/OWNERS
diff --git a/opengl/Android.bp b/opengl/Android.bp
index b15694b..4454f36 100644
--- a/opengl/Android.bp
+++ b/opengl/Android.bp
@@ -72,6 +72,10 @@
     llndk: {
         llndk_headers: true,
     },
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.virt",
+    ],
 }
 
 subdirs = [
diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index 2c3ce16..e487cbc 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp
@@ -41,24 +41,53 @@
 /*
  * EGL userspace drivers must be provided either:
  * - as a single library:
- *      /vendor/lib/egl/libGLES.so
+ *      /vendor/${LIB}/egl/libGLES.so
  *
  * - as separate libraries:
- *      /vendor/lib/egl/libEGL.so
- *      /vendor/lib/egl/libGLESv1_CM.so
- *      /vendor/lib/egl/libGLESv2.so
+ *      /vendor/${LIB}/egl/libEGL.so
+ *      /vendor/${LIB}/egl/libGLESv1_CM.so
+ *      /vendor/${LIB}/egl/libGLESv2.so
  *
  * For backward compatibility and to facilitate the transition to
  * this new naming scheme, the loader will additionally look for:
  *
- *      /{vendor|system}/lib/egl/lib{GLES | [EGL|GLESv1_CM|GLESv2]}_*.so
+ *      /vendor/${LIB}/egl/lib{GLES | [EGL|GLESv1_CM|GLESv2]}_${SUFFIX}.so
  *
  */
 
-Loader& Loader::getInstance() {
-    static Loader loader;
-    return loader;
-}
+#ifndef SYSTEM_LIB_PATH
+#if defined(__LP64__)
+#define SYSTEM_LIB_PATH "/system/lib64"
+#else
+#define SYSTEM_LIB_PATH "/system/lib"
+#endif
+#endif
+
+static const char* PERSIST_DRIVER_SUFFIX_PROPERTY = "persist.graphics.egl";
+static const char* RO_DRIVER_SUFFIX_PROPERTY = "ro.hardware.egl";
+static const char* RO_BOARD_PLATFORM_PROPERTY = "ro.board.platform";
+static const char* ANGLE_SUFFIX_VALUE = "angle";
+static const char* VENDOR_ANGLE_BUILD = "ro.gfx.angle.supported";
+
+static const char* HAL_SUBNAME_KEY_PROPERTIES[3] = {
+        PERSIST_DRIVER_SUFFIX_PROPERTY,
+        RO_DRIVER_SUFFIX_PROPERTY,
+        RO_BOARD_PLATFORM_PROPERTY,
+};
+
+static const char* const VENDOR_LIB_EGL_DIR =
+#if defined(__LP64__)
+        "/vendor/lib64/egl";
+#else
+        "/vendor/lib/egl";
+#endif
+
+static const char* const SYSTEM_LIB_DIR =
+#if defined(__LP64__)
+        "/system/lib64";
+#else
+        "/system/lib";
+#endif
 
 static void* do_dlopen(const char* path, int mode) {
     ATRACE_CALL();
@@ -80,6 +109,17 @@
     return android_unload_sphal_library(dso);
 }
 
+static void* load_wrapper(const char* path) {
+    void* so = do_dlopen(path, RTLD_NOW | RTLD_LOCAL);
+    ALOGE_IF(!so, "dlopen(\"%s\") failed: %s", path, dlerror());
+    return so;
+}
+
+Loader& Loader::getInstance() {
+    static Loader loader;
+    return loader;
+}
+
 Loader::driver_t::driver_t(void* gles)
 {
     dso[0] = gles;
@@ -123,37 +163,30 @@
 Loader::~Loader() {
 }
 
-static void* load_wrapper(const char* path) {
-    void* so = do_dlopen(path, RTLD_NOW | RTLD_LOCAL);
-    ALOGE_IF(!so, "dlopen(\"%s\") failed: %s", path, dlerror());
-    return so;
-}
-
-#ifndef EGL_WRAPPER_DIR
-#if defined(__LP64__)
-#define EGL_WRAPPER_DIR "/system/lib64"
-#else
-#define EGL_WRAPPER_DIR "/system/lib"
-#endif
-#endif
-
-static const char* DRIVER_SUFFIX_PROPERTY = "ro.hardware.egl";
-
-static const char* HAL_SUBNAME_KEY_PROPERTIES[3] = {
-        "persist.graphics.egl",
-        DRIVER_SUFFIX_PROPERTY,
-        "ro.board.platform",
-};
-
+// Check whether the loaded system drivers should be unloaded in order to
+// load ANGLE or the updatable graphics drivers.
+// If ANGLE namespace is set, it means the application is identified to run on top of ANGLE.
+// If updatable graphics driver namespace is set, it means the application is identified to
+// run on top of updatable graphics drivers.
 static bool should_unload_system_driver(egl_connection_t* cnx) {
     // Return false if the system driver has been unloaded once.
     if (cnx->systemDriverUnloaded) {
         return false;
     }
 
-    // Return true if Angle namespace is set.
+    // Return true if ANGLE namespace is set.
     android_namespace_t* ns = android::GraphicsEnv::getInstance().getAngleNamespace();
     if (ns) {
+        // Unless the default GLES driver is ANGLE and the process should use system ANGLE, since
+        // the intended GLES driver is already loaded.
+        // This should be updated in a later patch that cleans up namespaces
+        if (!(cnx->angleLoaded && android::GraphicsEnv::getInstance().shouldUseSystemAngle())) {
+            return true;
+        }
+    }
+
+    // Return true if native GLES drivers should be used and ANGLE is already loaded.
+    if (android::GraphicsEnv::getInstance().shouldUseNativeDriver() && cnx->angleLoaded) {
         return true;
     }
 
@@ -199,17 +232,17 @@
             do_android_unload_sphal_library(hnd->dso[0]);
         }
         cnx->dso = nullptr;
+        cnx->angleLoaded = false;
     }
 
     cnx->systemDriverUnloaded = true;
 }
 
-void* Loader::open(egl_connection_t* cnx)
-{
+void* Loader::open(egl_connection_t* cnx) {
     ATRACE_CALL();
     const nsecs_t openTime = systemTime();
 
-    if (should_unload_system_driver(cnx)) {
+    if (cnx->dso && should_unload_system_driver(cnx)) {
         unload_system_driver(cnx);
     }
 
@@ -218,22 +251,38 @@
         return cnx->dso;
     }
 
-    // Firstly, try to load ANGLE driver.
-    driver_t* hnd = attempt_to_load_angle(cnx);
+    driver_t* hnd = nullptr;
+    // Firstly, try to load ANGLE driver, if ANGLE should be loaded and fail, abort.
+    if (android::GraphicsEnv::getInstance().shouldUseAngle()) {
+        hnd = attempt_to_load_angle(cnx);
+        LOG_ALWAYS_FATAL_IF(!hnd, "Failed to load ANGLE.");
+    }
 
     if (!hnd) {
         // Secondly, try to load from driver apk.
         hnd = attempt_to_load_updated_driver(cnx);
+
+        // If updated driver apk is set but fail to load, abort here.
+        LOG_ALWAYS_FATAL_IF(android::GraphicsEnv::getInstance().getDriverNamespace(),
+                            "couldn't find an OpenGL ES implementation from %s",
+                            android::GraphicsEnv::getInstance().getDriverPath().c_str());
     }
 
+    // Attempt to load native GLES drivers specified by ro.hardware.egl if native is selected.
+    // If native is selected but fail to load, abort.
+    if (!hnd && android::GraphicsEnv::getInstance().shouldUseNativeDriver()) {
+        auto driverSuffix = base::GetProperty(RO_DRIVER_SUFFIX_PROPERTY, "");
+        LOG_ALWAYS_FATAL_IF(driverSuffix.empty(),
+                            "Native GLES driver is selected but not specified in %s",
+                            RO_DRIVER_SUFFIX_PROPERTY);
+        hnd = attempt_to_load_system_driver(cnx, driverSuffix.c_str(), true);
+        LOG_ALWAYS_FATAL_IF(!hnd, "Native GLES driver is selected but failed to load. %s=%s",
+                            RO_DRIVER_SUFFIX_PROPERTY, driverSuffix.c_str());
+    }
+
+    // Finally, try to load default driver.
     bool failToLoadFromDriverSuffixProperty = false;
     if (!hnd) {
-        // If updated driver apk is set but fail to load, abort here.
-        if (android::GraphicsEnv::getInstance().getDriverNamespace()) {
-            LOG_ALWAYS_FATAL("couldn't find an OpenGL ES implementation from %s",
-                             android::GraphicsEnv::getInstance().getDriverPath().c_str());
-        }
-        // Finally, try to load system driver.
         // Start by searching for the library name appended by the system
         // properties of the GLES userspace driver in both locations.
         // i.e.:
@@ -245,17 +294,20 @@
                 continue;
             }
             hnd = attempt_to_load_system_driver(cnx, prop.c_str(), true);
-            if (hnd) {
-                break;
-            } else if (strcmp(key, DRIVER_SUFFIX_PROPERTY) == 0) {
+            if (!hnd) {
+                ALOGD("Failed to load drivers from property %s with value %s", key, prop.c_str());
                 failToLoadFromDriverSuffixProperty = true;
             }
+
+            // Abort regardless of whether subsequent properties are set, the value must be set
+            // correctly with the first property that has a value.
+            break;
         }
     }
 
     if (!hnd) {
-        // Can't find graphics driver by appending system properties, now search for the exact name
-        // without any suffix of the GLES userspace driver in both locations.
+        // Can't find graphics driver by appending the value from system properties, now search for
+        // the exact name without any suffix of the GLES userspace driver in both locations.
         // i.e.:
         //      libGLES.so, or:
         //      libEGL.so, libGLESv1_CM.so, libGLESv2.so
@@ -274,10 +326,10 @@
                                                             false, systemTime() - openTime);
     } else {
         // init_angle_backend will check if loaded driver is ANGLE or not,
-        // will set cnx->useAngle appropriately.
+        // will set cnx->angleLoaded appropriately.
         // Do this here so that we use ANGLE path when driver is ANGLE (e.g. loaded as native),
         // not just loading ANGLE as option.
-        init_angle_backend(hnd->dso[2], cnx);
+        attempt_to_init_angle_backend(hnd->dso[2], cnx);
     }
 
     LOG_ALWAYS_FATAL_IF(!hnd,
@@ -287,13 +339,13 @@
                         HAL_SUBNAME_KEY_PROPERTIES[2]);
 
     if (!cnx->libEgl) {
-        cnx->libEgl = load_wrapper(EGL_WRAPPER_DIR "/libEGL.so");
+        cnx->libEgl = load_wrapper(SYSTEM_LIB_PATH "/libEGL.so");
     }
     if (!cnx->libGles1) {
-        cnx->libGles1 = load_wrapper(EGL_WRAPPER_DIR "/libGLESv1_CM.so");
+        cnx->libGles1 = load_wrapper(SYSTEM_LIB_PATH "/libGLESv1_CM.so");
     }
     if (!cnx->libGles2) {
-        cnx->libGles2 = load_wrapper(EGL_WRAPPER_DIR "/libGLESv2.so");
+        cnx->libGles2 = load_wrapper(SYSTEM_LIB_PATH "/libGLESv2.so");
     }
 
     if (!cnx->libEgl || !cnx->libGles2 || !cnx->libGles1) {
@@ -319,7 +371,7 @@
     delete hnd;
     cnx->dso = nullptr;
 
-    cnx->useAngle = false;
+    cnx->angleLoaded = false;
 }
 
 void Loader::init_api(void* dso,
@@ -391,110 +443,110 @@
     }
 }
 
+static std::string findLibrary(const std::string libraryName, const std::string searchPath,
+                               const bool exact) {
+    if (exact) {
+        std::string absolutePath = searchPath + "/" + libraryName + ".so";
+        if (!access(absolutePath.c_str(), R_OK)) {
+            return absolutePath;
+        }
+        return std::string();
+    }
+
+    DIR* d = opendir(searchPath.c_str());
+    if (d != nullptr) {
+        struct dirent* e;
+        while ((e = readdir(d)) != nullptr) {
+            if (e->d_type == DT_DIR) {
+                continue;
+            }
+            if (!strcmp(e->d_name, "libGLES_android.so")) {
+                // always skip the software renderer
+                continue;
+            }
+            if (strstr(e->d_name, libraryName.c_str()) == e->d_name) {
+                if (!strcmp(e->d_name + strlen(e->d_name) - 3, ".so")) {
+                    std::string result = searchPath + "/" + e->d_name;
+                    closedir(d);
+                    return result;
+                }
+            }
+        }
+        closedir(d);
+    }
+    // Driver not found. gah.
+    return std::string();
+}
+
 static void* load_system_driver(const char* kind, const char* suffix, const bool exact) {
     ATRACE_CALL();
-    class MatchFile {
-    public:
-        static std::string find(const char* libraryName, const bool exact) {
-            const char* const searchPaths[] = {
-#if defined(__LP64__)
-                    "/vendor/lib64/egl",
-                    "/system/lib64/egl"
-#else
-                    "/vendor/lib/egl",
-                    "/system/lib/egl"
-#endif
-            };
-
-            for (auto dir : searchPaths) {
-                std::string absolutePath;
-                if (find(absolutePath, libraryName, dir, exact)) {
-                    return absolutePath;
-                }
-            }
-
-            // Driver not found. gah.
-            return std::string();
-        }
-    private:
-        static bool find(std::string& result,
-                const std::string& pattern, const char* const search, bool exact) {
-            if (exact) {
-                std::string absolutePath = std::string(search) + "/" + pattern + ".so";
-                if (!access(absolutePath.c_str(), R_OK)) {
-                    result = absolutePath;
-                    return true;
-                }
-                return false;
-            }
-
-            DIR* d = opendir(search);
-            if (d != nullptr) {
-                struct dirent* e;
-                while ((e = readdir(d)) != nullptr) {
-                    if (e->d_type == DT_DIR) {
-                        continue;
-                    }
-                    if (!strcmp(e->d_name, "libGLES_android.so")) {
-                        // always skip the software renderer
-                        continue;
-                    }
-                    if (strstr(e->d_name, pattern.c_str()) == e->d_name) {
-                        if (!strcmp(e->d_name + strlen(e->d_name) - 3, ".so")) {
-                            result = std::string(search) + "/" + e->d_name;
-                            closedir(d);
-                            return true;
-                        }
-                    }
-                }
-                closedir(d);
-            }
-            return false;
-        }
-    };
 
     std::string libraryName = std::string("lib") + kind;
     if (suffix) {
         libraryName += std::string("_") + suffix;
     } else if (!exact) {
-        // Deprecated: we look for files that match
-        //      libGLES_*.so, or:
+        // Deprecated for devices launching in Android 14
+        // Look for files that match
+        //      libGLES_*.so, or,
         //      libEGL_*.so, libGLESv1_CM_*.so, libGLESv2_*.so
         libraryName += std::string("_");
     }
-    std::string absolutePath = MatchFile::find(libraryName.c_str(), exact);
+
+    void* dso = nullptr;
+
+    const bool AngleInVendor = property_get_bool(VENDOR_ANGLE_BUILD, false);
+    const bool isSuffixAngle = suffix != nullptr && strcmp(suffix, ANGLE_SUFFIX_VALUE) == 0;
+    // Only use sphal namespace when system ANGLE binaries are not the default drivers.
+    const bool useSphalNamespace =  !isSuffixAngle || AngleInVendor;
+
+    const std::string absolutePath =
+            findLibrary(libraryName, useSphalNamespace ? VENDOR_LIB_EGL_DIR : SYSTEM_LIB_PATH,
+                        exact);
     if (absolutePath.empty()) {
         // this happens often, we don't want to log an error
         return nullptr;
     }
-    const char* const driver_absolute_path = absolutePath.c_str();
+    const char* const driverAbsolutePath = absolutePath.c_str();
 
-    // Try to load drivers from the 'sphal' namespace, if it exist. Fall back to
-    // the original routine when the namespace does not exist.
-    // See /system/core/rootdir/etc/ld.config.txt for the configuration of the
-    // sphal namespace.
-    void* dso = do_android_load_sphal_library(driver_absolute_path,
-                                              RTLD_NOW | RTLD_LOCAL);
+    // Currently the default driver is unlikely to be ANGLE on most devices,
+    // hence put this first.
+    if (useSphalNamespace) {
+        // Try to load drivers from the 'sphal' namespace, if it exist. Fall back to
+        // the original routine when the namespace does not exist.
+        // See /system/linkerconfig/contents/namespace for the configuration of the
+        // sphal namespace.
+        dso = do_android_load_sphal_library(driverAbsolutePath, RTLD_NOW | RTLD_LOCAL);
+    } else {
+        // Try to load drivers from the default namespace.
+        // See /system/linkerconfig/contents/namespace for the configuration of the
+        // default namespace.
+        dso = do_dlopen(driverAbsolutePath, RTLD_NOW | RTLD_LOCAL);
+    }
+
     if (dso == nullptr) {
         const char* err = dlerror();
-        ALOGE("load_driver(%s): %s", driver_absolute_path, err ? err : "unknown");
+        ALOGE("load_driver(%s): %s", driverAbsolutePath, err ? err : "unknown");
         return nullptr;
     }
 
-    ALOGD("loaded %s", driver_absolute_path);
+    ALOGV("loaded %s", driverAbsolutePath);
 
     return dso;
 }
 
 static void* load_angle(const char* kind, android_namespace_t* ns) {
-    const android_dlextinfo dlextinfo = {
-            .flags = ANDROID_DLEXT_USE_NAMESPACE,
-            .library_namespace = ns,
-    };
-
     std::string name = std::string("lib") + kind + "_angle.so";
+    void* so = nullptr;
 
-    void* so = do_android_dlopen_ext(name.c_str(), RTLD_LOCAL | RTLD_NOW, &dlextinfo);
+    if (android::GraphicsEnv::getInstance().shouldUseSystemAngle()) {
+        so = do_dlopen(name.c_str(), RTLD_NOW | RTLD_LOCAL);
+    } else {
+        const android_dlextinfo dlextinfo = {
+                .flags = ANDROID_DLEXT_USE_NAMESPACE,
+                .library_namespace = ns,
+        };
+        so = do_android_dlopen_ext(name.c_str(), RTLD_LOCAL | RTLD_NOW, &dlextinfo);
+    }
 
     if (so) {
         return so;
@@ -531,15 +583,15 @@
 Loader::driver_t* Loader::attempt_to_load_angle(egl_connection_t* cnx) {
     ATRACE_CALL();
 
-    if (!android::GraphicsEnv::getInstance().shouldUseAngle()) {
-        return nullptr;
-    }
-
     android_namespace_t* ns = android::GraphicsEnv::getInstance().getAngleNamespace();
-    if (!ns) {
+    // ANGLE namespace is used for loading ANGLE from apk, and hence if namespace is not
+    // constructed, it means ANGLE apk is not set to be the OpenGL ES driver.
+    // Hence skip if ANGLE apk and system ANGLE are not set to be the OpenGL ES driver.
+    if (!ns && !android::GraphicsEnv::getInstance().shouldUseSystemAngle()) {
         return nullptr;
     }
 
+    // use ANGLE APK driver
     android::GraphicsEnv::getInstance().setDriverToLoad(android::GpuStatsInfo::Driver::ANGLE);
     driver_t* hnd = nullptr;
 
@@ -560,14 +612,17 @@
     return hnd;
 }
 
-void Loader::init_angle_backend(void* dso, egl_connection_t* cnx) {
-    void* pANGLEGetDisplayPlatform = dlsym(dso, "ANGLEGetDisplayPlatform");
-    if (pANGLEGetDisplayPlatform) {
-        ALOGV("ANGLE GLES library in use");
-        cnx->useAngle = true;
+void Loader::attempt_to_init_angle_backend(void* dso, egl_connection_t* cnx) {
+    cnx->angleGetDisplayPlatformFunc = dlsym(dso, "ANGLEGetDisplayPlatform");
+    cnx->angleResetDisplayPlatformFunc = dlsym(dso, "ANGLEResetDisplayPlatform");
+
+    if (cnx->angleGetDisplayPlatformFunc) {
+        ALOGV("ANGLE GLES library loaded");
+        cnx->angleLoaded = true;
+        android::GraphicsEnv::getInstance().setDriverToLoad(android::GpuStatsInfo::Driver::ANGLE);
     } else {
-        ALOGV("Native GLES library in use");
-        cnx->useAngle = false;
+        ALOGV("Native GLES library loaded");
+        cnx->angleLoaded = false;
     }
 }
 
@@ -608,7 +663,13 @@
 Loader::driver_t* Loader::attempt_to_load_system_driver(egl_connection_t* cnx, const char* suffix,
                                                         const bool exact) {
     ATRACE_CALL();
-    android::GraphicsEnv::getInstance().setDriverToLoad(android::GpuStatsInfo::Driver::GL);
+    if (suffix && strcmp(suffix, "angle") == 0) {
+        // use system ANGLE driver
+        android::GraphicsEnv::getInstance().setDriverToLoad(android::GpuStatsInfo::Driver::ANGLE);
+    } else {
+        android::GraphicsEnv::getInstance().setDriverToLoad(android::GpuStatsInfo::Driver::GL);
+    }
+
     driver_t* hnd = nullptr;
     void* dso = load_system_driver("GLES", suffix, exact);
     if (dso) {
diff --git a/opengl/libs/EGL/Loader.h b/opengl/libs/EGL/Loader.h
index 81742ab..cadbd46 100644
--- a/opengl/libs/EGL/Loader.h
+++ b/opengl/libs/EGL/Loader.h
@@ -57,7 +57,7 @@
     driver_t* attempt_to_load_system_driver(egl_connection_t* cnx, const char* suffix, const bool exact);
     void unload_system_driver(egl_connection_t* cnx);
     void initialize_api(void* dso, egl_connection_t* cnx, uint32_t mask);
-    void init_angle_backend(void* dso, egl_connection_t* cnx);
+    void attempt_to_init_angle_backend(void* dso, egl_connection_t* cnx);
 
     static __attribute__((noinline)) void init_api(void* dso, const char* const* api,
                                                    const char* const* ref_api,
diff --git a/opengl/libs/EGL/MultifileBlobCache.cpp b/opengl/libs/EGL/MultifileBlobCache.cpp
index 7ffdac7..ed3c616 100644
--- a/opengl/libs/EGL/MultifileBlobCache.cpp
+++ b/opengl/libs/EGL/MultifileBlobCache.cpp
@@ -48,9 +48,8 @@
 void freeHotCacheEntry(android::MultifileHotCache& entry) {
     if (entry.entryFd != -1) {
         // If we have an fd, then this entry was added to hot cache via INIT or GET
-        // We need to unmap and close the entry
+        // We need to unmap the entry
         munmap(entry.entryBuffer, entry.entrySize);
-        close(entry.entryFd);
     } else {
         // Otherwise, this was added to hot cache during SET, so it was never mapped
         // and fd was only on the deferred thread.
@@ -143,6 +142,7 @@
                 if (result != sizeof(MultifileHeader)) {
                     ALOGE("Error reading MultifileHeader from cache entry (%s): %s",
                           fullPath.c_str(), std::strerror(errno));
+                    close(fd);
                     return;
                 }
 
@@ -152,6 +152,7 @@
                     if (remove(fullPath.c_str()) != 0) {
                         ALOGE("Error removing %s: %s", fullPath.c_str(), std::strerror(errno));
                     }
+                    close(fd);
                     continue;
                 }
 
@@ -161,6 +162,10 @@
                 // Memory map the file
                 uint8_t* mappedEntry = reinterpret_cast<uint8_t*>(
                         mmap(nullptr, fileSize, PROT_READ, MAP_PRIVATE, fd, 0));
+
+                // We can close the file now and the mmap will remain
+                close(fd);
+
                 if (mappedEntry == MAP_FAILED) {
                     ALOGE("Failed to mmap cacheEntry, error: %s", std::strerror(errno));
                     return;
@@ -206,13 +211,11 @@
                     if (!addToHotCache(entryHash, fd, mappedEntry, fileSize)) {
                         ALOGE("INIT Failed to add %u to hot cache", entryHash);
                         munmap(mappedEntry, fileSize);
-                        close(fd);
                         return;
                     }
                 } else {
                     // If we're not keeping it in hot cache, unmap it now
                     munmap(mappedEntry, fileSize);
-                    close(fd);
                 }
             }
             closedir(dir);
@@ -401,9 +404,12 @@
         // Memory map the file
         cacheEntry =
                 reinterpret_cast<uint8_t*>(mmap(nullptr, fileSize, PROT_READ, MAP_PRIVATE, fd, 0));
+
+        // We can close the file now and the mmap will remain
+        close(fd);
+
         if (cacheEntry == MAP_FAILED) {
             ALOGE("Failed to mmap cacheEntry, error: %s", std::strerror(errno));
-            close(fd);
             return 0;
         }
 
diff --git a/opengl/libs/EGL/MultifileBlobCache_test.cpp b/opengl/libs/EGL/MultifileBlobCache_test.cpp
index dbee13b..1639be6 100644
--- a/opengl/libs/EGL/MultifileBlobCache_test.cpp
+++ b/opengl/libs/EGL/MultifileBlobCache_test.cpp
@@ -42,6 +42,8 @@
 
     virtual void TearDown() { mMBC.reset(); }
 
+    int getFileDescriptorCount();
+
     std::unique_ptr<TemporaryFile> mTempFile;
     std::unique_ptr<MultifileBlobCache> mMBC;
 };
@@ -216,4 +218,56 @@
     ASSERT_EQ('y', buf[0]);
 }
 
+int MultifileBlobCacheTest::getFileDescriptorCount() {
+    DIR* directory = opendir("/proc/self/fd");
+
+    int fileCount = 0;
+    struct dirent* entry;
+    while ((entry = readdir(directory)) != NULL) {
+        fileCount++;
+        // printf("File: %s\n", entry->d_name);
+    }
+
+    closedir(directory);
+    return fileCount;
+}
+
+TEST_F(MultifileBlobCacheTest, EnsureFileDescriptorsClosed) {
+    // Populate the cache with a bunch of entries
+    size_t kLargeNumberOfEntries = 1024;
+    for (int i = 0; i < kLargeNumberOfEntries; i++) {
+        // printf("Caching: %i", i);
+
+        // Use the index as the key and value
+        mMBC->set(&i, sizeof(i), &i, sizeof(i));
+
+        int result = 0;
+        ASSERT_EQ(sizeof(i), mMBC->get(&i, sizeof(i), &result, sizeof(result)));
+        ASSERT_EQ(i, result);
+    }
+
+    // Ensure we don't have a bunch of open fds
+    ASSERT_LT(getFileDescriptorCount(), kLargeNumberOfEntries / 2);
+
+    // Close the cache so everything writes out
+    mMBC->finish();
+    mMBC.reset();
+
+    // Now open it again and ensure we still don't have a bunch of open fds
+    mMBC.reset(
+            new MultifileBlobCache(kMaxKeySize, kMaxValueSize, kMaxTotalSize, &mTempFile->path[0]));
+
+    // Check after initialization
+    ASSERT_LT(getFileDescriptorCount(), kLargeNumberOfEntries / 2);
+
+    for (int i = 0; i < kLargeNumberOfEntries; i++) {
+        int result = 0;
+        ASSERT_EQ(sizeof(i), mMBC->get(&i, sizeof(i), &result, sizeof(result)));
+        ASSERT_EQ(i, result);
+    }
+
+    // And again after we've actually used it
+    ASSERT_LT(getFileDescriptorCount(), kLargeNumberOfEntries / 2);
+}
+
 } // namespace android
diff --git a/opengl/libs/EGL/egl_angle_platform.cpp b/opengl/libs/EGL/egl_angle_platform.cpp
index 9a6bb7a..f0054a7 100644
--- a/opengl/libs/EGL/egl_angle_platform.cpp
+++ b/opengl/libs/EGL/egl_angle_platform.cpp
@@ -35,11 +35,6 @@
 
 namespace angle {
 
-constexpr int kAngleDlFlags = RTLD_LOCAL | RTLD_NOW;
-
-static GetDisplayPlatformFunc angleGetDisplayPlatform = nullptr;
-static ResetDisplayPlatformFunc angleResetDisplayPlatform = nullptr;
-
 static time_t startTime = time(nullptr);
 
 static const unsigned char* getTraceCategoryEnabledFlag(PlatformMethods* /*platform*/,
@@ -110,60 +105,19 @@
 }
 
 // Initialize function ptrs for ANGLE PlatformMethods struct, used for systrace
-bool initializeAnglePlatform(EGLDisplay dpy) {
-    // Since we're inside libEGL, use dlsym to lookup fptr for ANGLEGetDisplayPlatform
-    android_namespace_t* ns = android::GraphicsEnv::getInstance().getAngleNamespace();
-    void* so = nullptr;
-    if (ns) {
-        // Loading from an APK, so hard-code the suffix to "_angle".
-        constexpr char kAngleEs2Lib[] = "libGLESv2_angle.so";
-        const android_dlextinfo dlextinfo = {
-                .flags = ANDROID_DLEXT_USE_NAMESPACE,
-                .library_namespace = ns,
-        };
-        so = android_dlopen_ext(kAngleEs2Lib, kAngleDlFlags, &dlextinfo);
-        if (so) {
-            ALOGD("dlopen_ext from APK (%s) success at %p", kAngleEs2Lib, so);
-        } else {
-            ALOGE("dlopen_ext(\"%s\") failed: %s", kAngleEs2Lib, dlerror());
-            return false;
-        }
-    } else {
-        // If we are here, ANGLE is loaded as built-in gl driver in the sphal.
-        // Get the specified ANGLE library filename suffix.
-        std::string angleEs2LibSuffix = android::base::GetProperty("ro.hardware.egl", "");
-        if (angleEs2LibSuffix.empty()) {
-            ALOGE("%s failed to get valid ANGLE library filename suffix!", __FUNCTION__);
-            return false;
-        }
-
-        std::string angleEs2LibName = "libGLESv2_" + angleEs2LibSuffix + ".so";
-        so = android_load_sphal_library(angleEs2LibName.c_str(), kAngleDlFlags);
-        if (so) {
-            ALOGD("dlopen (%s) success at %p", angleEs2LibName.c_str(), so);
-        } else {
-            ALOGE("%s failed to dlopen %s!", __FUNCTION__, angleEs2LibName.c_str());
-            return false;
-        }
-    }
-
-    angleGetDisplayPlatform =
-            reinterpret_cast<GetDisplayPlatformFunc>(dlsym(so, "ANGLEGetDisplayPlatform"));
-
-    if (!angleGetDisplayPlatform) {
-        ALOGE("dlsym lookup of ANGLEGetDisplayPlatform in libEGL_angle failed!");
-        dlclose(so);
+bool initializeAnglePlatform(EGLDisplay dpy, android::egl_connection_t* const cnx) {
+    if (cnx->angleGetDisplayPlatformFunc == nullptr) {
+        ALOGE("ANGLEGetDisplayPlatform is not initialized!");
         return false;
     }
 
-    angleResetDisplayPlatform =
-            reinterpret_cast<ResetDisplayPlatformFunc>(dlsym(so, "ANGLEResetDisplayPlatform"));
+    GetDisplayPlatformFunc angleGetDisplayPlatform =
+            reinterpret_cast<GetDisplayPlatformFunc>(cnx->angleGetDisplayPlatformFunc);
 
     PlatformMethods* platformMethods = nullptr;
     if (!((angleGetDisplayPlatform)(dpy, g_PlatformMethodNames, g_NumPlatformMethods, nullptr,
                                     &platformMethods))) {
         ALOGE("ANGLEGetDisplayPlatform call failed!");
-        dlclose(so);
         return false;
     }
     if (platformMethods) {
@@ -175,8 +129,10 @@
     return true;
 }
 
-void resetAnglePlatform(EGLDisplay dpy) {
-    if (angleResetDisplayPlatform) {
+void resetAnglePlatform(EGLDisplay dpy, android::egl_connection_t* const cnx) {
+    if (cnx->angleResetDisplayPlatformFunc) {
+        ResetDisplayPlatformFunc angleResetDisplayPlatform =
+                reinterpret_cast<ResetDisplayPlatformFunc>(cnx->angleResetDisplayPlatformFunc);
         angleResetDisplayPlatform(dpy);
     }
 }
diff --git a/opengl/libs/EGL/egl_angle_platform.h b/opengl/libs/EGL/egl_angle_platform.h
index 6c24aa5..63806c2 100644
--- a/opengl/libs/EGL/egl_angle_platform.h
+++ b/opengl/libs/EGL/egl_angle_platform.h
@@ -25,8 +25,8 @@
 
 namespace angle {
 
-bool initializeAnglePlatform(EGLDisplay dpy);
-void resetAnglePlatform(EGLDisplay dpy);
+bool initializeAnglePlatform(EGLDisplay dpy, android::egl_connection_t* const cnx);
+void resetAnglePlatform(EGLDisplay dpy, android::egl_connection_t* const cnx);
 
 }; // namespace angle
 
diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
index 525fed1..55a2682 100644
--- a/opengl/libs/EGL/egl_display.cpp
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -168,7 +168,7 @@
         if (dpy == EGL_NO_DISPLAY) {
             ALOGE("eglGetPlatformDisplay failed!");
         } else {
-            if (!angle::initializeAnglePlatform(dpy)) {
+            if (!angle::initializeAnglePlatform(dpy, cnx)) {
                 ALOGE("initializeAnglePlatform failed!");
             }
         }
@@ -191,7 +191,7 @@
     if (cnx->dso) {
         EGLDisplay dpy = EGL_NO_DISPLAY;
 
-        if (cnx->useAngle) {
+        if (cnx->angleLoaded) {
             EGLint error;
             dpy = getPlatformDisplayAngle(display, cnx, attrib_list, &error);
             if (error != EGL_NONE) {
@@ -324,7 +324,7 @@
 
         // b/269060366 Conditionally enabled EGL_ANDROID_get_frame_timestamps extension if the
         // device's present timestamps are reliable (which may not be the case on emulators).
-        if (cnx->useAngle) {
+        if (cnx->angleLoaded) {
             if (android::base::GetBoolProperty("service.sf.present_timestamp", false)) {
                 mExtensionString.append("EGL_ANDROID_get_frame_timestamps ");
             }
@@ -432,8 +432,8 @@
         egl_connection_t* const cnx = &gEGLImpl;
         if (cnx->dso && disp.state == egl_display_t::INITIALIZED) {
             // If we're using ANGLE reset any custom DisplayPlatform
-            if (cnx->useAngle) {
-                angle::resetAnglePlatform(disp.dpy);
+            if (cnx->angleLoaded) {
+                angle::resetAnglePlatform(disp.dpy, cnx);
             }
             if (cnx->egl.eglTerminate(disp.dpy) == EGL_FALSE) {
                 ALOGW("eglTerminate(%p) failed (%s)", disp.dpy,
diff --git a/opengl/libs/EGL/egl_object.cpp b/opengl/libs/EGL/egl_object.cpp
index efbe613..33a77c4 100644
--- a/opengl/libs/EGL/egl_object.cpp
+++ b/opengl/libs/EGL/egl_object.cpp
@@ -84,7 +84,7 @@
     if (win != nullptr && connected) {
         // NOTE: When using Vulkan backend, the Vulkan runtime makes all the
         // native_window_* calls, so don't do them here.
-        if (!cnx->useAngle) {
+        if (!cnx->angleLoaded) {
             native_window_set_buffers_format(win, 0);
             if (native_window_api_disconnect(win, NATIVE_WINDOW_API_EGL)) {
                 ALOGW("EGLNativeWindowType %p disconnect failed", win);
diff --git a/opengl/libs/EGL/egl_platform_entries.cpp b/opengl/libs/EGL/egl_platform_entries.cpp
index aefa1f0..440eb17 100644
--- a/opengl/libs/EGL/egl_platform_entries.cpp
+++ b/opengl/libs/EGL/egl_platform_entries.cpp
@@ -685,7 +685,7 @@
 
     // NOTE: When using Vulkan backend, the Vulkan runtime makes all the
     // native_window_* calls, so don't do them here.
-    if (!cnx->useAngle) {
+    if (!cnx->angleLoaded) {
         int result = native_window_api_connect(window, NATIVE_WINDOW_API_EGL);
         if (result < 0) {
             ALOGE("eglCreateWindowSurface: native_window_api_connect (win=%p) "
@@ -704,14 +704,14 @@
     std::vector<AttrType> strippedAttribList;
     if (!processAttributes<AttrType>(dp, window, attrib_list, &colorSpace, &strippedAttribList)) {
         ALOGE("error invalid colorspace: %d", colorSpace);
-        if (!cnx->useAngle) {
+        if (!cnx->angleLoaded) {
             native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
         }
         return EGL_NO_SURFACE;
     }
     attrib_list = strippedAttribList.data();
 
-    if (!cnx->useAngle) {
+    if (!cnx->angleLoaded) {
         int err = native_window_set_buffers_format(window, static_cast<int>(format));
         if (err != 0) {
             ALOGE("error setting native window pixel format: %s (%d)", strerror(-err), err);
@@ -743,7 +743,7 @@
     }
 
     // EGLSurface creation failed
-    if (!cnx->useAngle) {
+    if (!cnx->angleLoaded) {
         native_window_set_buffers_format(window, 0);
         native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
     }
@@ -1354,7 +1354,7 @@
         }
     }
 
-    if (!s->cnx->useAngle) {
+    if (!s->cnx->angleLoaded) {
         if (!sendSurfaceMetadata(s)) {
             native_window_api_disconnect(s->getNativeWindow(), NATIVE_WINDOW_API_EGL);
             return setError(EGL_BAD_NATIVE_WINDOW, (EGLBoolean)EGL_FALSE);
@@ -1379,7 +1379,7 @@
         androidRect.bottom = y;
         androidRects.push_back(androidRect);
     }
-    if (!s->cnx->useAngle) {
+    if (!s->cnx->angleLoaded) {
         native_window_set_surface_damage(s->getNativeWindow(), androidRects.data(),
                                          androidRects.size());
     }
@@ -1470,7 +1470,7 @@
         int err = native_window_set_auto_refresh(s->getNativeWindow(), value != 0);
         if (err != 0) {
             return setError(EGL_BAD_SURFACE, (EGLBoolean)EGL_FALSE);
-        } else if (!s->cnx->useAngle) {
+        } else if (!s->cnx->angleLoaded) {
             return EGL_TRUE;
         } // else if ANGLE, fall through to the call to the driver (i.e. ANGLE) below
     }
@@ -1484,7 +1484,7 @@
         int err = native_window_enable_frame_timestamps(s->getNativeWindow(), value != 0);
         if (err != 0) {
             return setError(EGL_BAD_SURFACE, (EGLBoolean)EGL_FALSE);
-        } else if (!s->cnx->useAngle) {
+        } else if (!s->cnx->angleLoaded) {
             return EGL_TRUE;
         } // else if ANGLE, fall through to the call to the driver (i.e. ANGLE) below
     }
diff --git a/opengl/libs/EGL/egldefs.h b/opengl/libs/EGL/egldefs.h
index fcc11f1..90a3c19 100644
--- a/opengl/libs/EGL/egldefs.h
+++ b/opengl/libs/EGL/egldefs.h
@@ -41,7 +41,10 @@
             libEgl(nullptr),
             libGles1(nullptr),
             libGles2(nullptr),
-            systemDriverUnloaded(false) {
+            systemDriverUnloaded(false),
+            angleLoaded(false),
+            angleGetDisplayPlatformFunc(nullptr),
+            angleResetDisplayPlatformFunc(nullptr) {
         const char* const* entries = platform_names;
         EGLFuncPointer* curr = reinterpret_cast<EGLFuncPointer*>(&platform);
         while (*entries) {
@@ -73,7 +76,10 @@
     void* libGles2;
 
     bool systemDriverUnloaded;
-    bool useAngle; // Was ANGLE successfully loaded
+    bool angleLoaded; // Was ANGLE successfully loaded
+
+    void* angleGetDisplayPlatformFunc;
+    void* angleResetDisplayPlatformFunc;
 };
 
 extern gl_hooks_t gHooks[2];
diff --git a/services/gpuservice/gpustats/GpuStats.cpp b/services/gpuservice/gpustats/GpuStats.cpp
index f06a045..11b636d 100644
--- a/services/gpuservice/gpustats/GpuStats.cpp
+++ b/services/gpuservice/gpustats/GpuStats.cpp
@@ -163,11 +163,13 @@
         addLoadingTime(driver, driverLoadingTime, &appInfo);
         appInfo.appPackageName = appPackageName;
         appInfo.driverVersionCode = driverVersionCode;
-        appInfo.angleInUse = driverPackageName == "angle";
+        appInfo.angleInUse =
+                driver == GpuStatsInfo::Driver::ANGLE || driverPackageName == "angle";
         appInfo.lastAccessTime = std::chrono::system_clock::now();
         mAppStats.insert({appStatsKey, appInfo});
     } else {
-        mAppStats[appStatsKey].angleInUse = driverPackageName == "angle";
+        mAppStats[appStatsKey].angleInUse =
+                driver == GpuStatsInfo::Driver::ANGLE || driverPackageName == "angle";
         addLoadingTime(driver, driverLoadingTime, &mAppStats[appStatsKey]);
         mAppStats[appStatsKey].lastAccessTime = std::chrono::system_clock::now();
     }
diff --git a/services/inputflinger/InputListener.cpp b/services/inputflinger/InputListener.cpp
index aa55873..ca5d5a1 100644
--- a/services/inputflinger/InputListener.cpp
+++ b/services/inputflinger/InputListener.cpp
@@ -39,7 +39,7 @@
 
 // Helper to std::visit with lambdas.
 template <typename... V>
-struct Visitor : V... {};
+struct Visitor : V... { using V::operator()...; };
 // explicit deduction guide (not needed as of C++20)
 template <typename... V>
 Visitor(V...) -> Visitor<V...>;
diff --git a/services/inputflinger/NotifyArgs.cpp b/services/inputflinger/NotifyArgs.cpp
index 408fbed..35d60ea 100644
--- a/services/inputflinger/NotifyArgs.cpp
+++ b/services/inputflinger/NotifyArgs.cpp
@@ -233,7 +233,7 @@
 
 // Helper to std::visit with lambdas.
 template <typename... V>
-struct Visitor : V... {};
+struct Visitor : V... { using V::operator()...; };
 // explicit deduction guide (not needed as of C++20)
 template <typename... V>
 Visitor(V...) -> Visitor<V...>;
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 901c806..1cf2b5f 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -5837,7 +5837,7 @@
     { // acquire lock
         std::scoped_lock _l(mLock);
         const sp<IBinder>& token = serverChannel->getConnectionToken();
-        int fd = serverChannel->getFd();
+        auto&& fd = serverChannel->getFd();
         std::shared_ptr<Connection> connection =
                 std::make_shared<Connection>(std::move(serverChannel), /*monitor=*/false,
                                              mIdGenerator);
@@ -5850,7 +5850,7 @@
         std::function<int(int events)> callback = std::bind(&InputDispatcher::handleReceiveCallback,
                                                             this, std::placeholders::_1, token);
 
-        mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
+        mLooper->addFd(fd.get(), 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
                        nullptr);
     } // release lock
 
@@ -5880,7 +5880,7 @@
         std::shared_ptr<Connection> connection =
                 std::make_shared<Connection>(serverChannel, /*monitor=*/true, mIdGenerator);
         const sp<IBinder>& token = serverChannel->getConnectionToken();
-        const int fd = serverChannel->getFd();
+        auto&& fd = serverChannel->getFd();
 
         if (mConnectionsByToken.find(token) != mConnectionsByToken.end()) {
             ALOGE("Created a new connection, but the token %p is already known", token.get());
@@ -5891,7 +5891,7 @@
 
         mGlobalMonitorsByDisplay[displayId].emplace_back(serverChannel, pid);
 
-        mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
+        mLooper->addFd(fd.get(), 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
                        nullptr);
     }
 
@@ -5930,7 +5930,7 @@
         removeMonitorChannelLocked(connectionToken);
     }
 
-    mLooper->removeFd(connection->inputChannel->getFd());
+    mLooper->removeFd(connection->inputChannel->getFd().get());
 
     nsecs_t currentTime = now();
     abortBrokenDispatchCycleLocked(currentTime, connection, notify);
diff --git a/services/inputflinger/dispatcher/LatencyAggregator.cpp b/services/inputflinger/dispatcher/LatencyAggregator.cpp
index 96d78c3..e09d97a 100644
--- a/services/inputflinger/dispatcher/LatencyAggregator.cpp
+++ b/services/inputflinger/dispatcher/LatencyAggregator.cpp
@@ -126,6 +126,7 @@
 }
 
 void LatencyAggregator::processStatistics(const InputEventTimeline& timeline) {
+    std::scoped_lock lock(mLock);
     // Before we do any processing, check that we have not yet exceeded MAX_SIZE
     if (mNumSketchEventsProcessed >= MAX_EVENTS_FOR_STATISTICS) {
         return;
@@ -167,6 +168,7 @@
 }
 
 AStatsManager_PullAtomCallbackReturn LatencyAggregator::pullData(AStatsEventList* data) {
+    std::scoped_lock lock(mLock);
     std::array<std::unique_ptr<SafeBytesField>, SketchIndex::SIZE> serializedDownData;
     std::array<std::unique_ptr<SafeBytesField>, SketchIndex::SIZE> serializedMoveData;
     for (size_t i = 0; i < SketchIndex::SIZE; i++) {
@@ -257,6 +259,7 @@
 }
 
 std::string LatencyAggregator::dump(const char* prefix) const {
+    std::scoped_lock lock(mLock);
     std::string sketchDump = StringPrintf("%s  Sketches:\n", prefix);
     for (size_t i = 0; i < SketchIndex::SIZE; i++) {
         const int64_t numDown = mDownSketches[i]->num_values();
diff --git a/services/inputflinger/dispatcher/LatencyAggregator.h b/services/inputflinger/dispatcher/LatencyAggregator.h
index 60b6813..d6d1686 100644
--- a/services/inputflinger/dispatcher/LatencyAggregator.h
+++ b/services/inputflinger/dispatcher/LatencyAggregator.h
@@ -16,6 +16,7 @@
 
 #pragma once
 
+#include <android-base/thread_annotations.h>
 #include <kll.h>
 #include <statslog.h>
 #include <utils/Timers.h>
@@ -61,10 +62,13 @@
     ~LatencyAggregator();
 
 private:
+    // Binder call -- called on a binder thread. This is different from the thread where the rest of
+    // the public API is called.
     static AStatsManager_PullAtomCallbackReturn pullAtomCallback(int32_t atom_tag,
                                                                  AStatsEventList* data,
                                                                  void* cookie);
     AStatsManager_PullAtomCallbackReturn pullData(AStatsEventList* data);
+
     // ---------- Slow event handling ----------
     void processSlowEvent(const InputEventTimeline& timeline);
     nsecs_t mLastSlowEventTime = 0;
@@ -74,14 +78,17 @@
     size_t mNumEventsSinceLastSlowEventReport = 0;
 
     // ---------- Statistics handling ----------
+    // Statistics is pulled rather than pushed. It's pulled on a binder thread, and therefore will
+    // be accessed by two different threads. The lock is needed to protect the pulled data.
+    mutable std::mutex mLock;
     void processStatistics(const InputEventTimeline& timeline);
     // Sketches
     std::array<std::unique_ptr<dist_proc::aggregation::KllQuantile>, SketchIndex::SIZE>
-            mDownSketches;
+            mDownSketches GUARDED_BY(mLock);
     std::array<std::unique_ptr<dist_proc::aggregation::KllQuantile>, SketchIndex::SIZE>
-            mMoveSketches;
+            mMoveSketches GUARDED_BY(mLock);
     // How many events have been processed so far
-    size_t mNumSketchEventsProcessed = 0;
+    size_t mNumSketchEventsProcessed GUARDED_BY(mLock) = 0;
 };
 
 } // namespace android::inputdispatcher
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index 0354164..c468d45 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -2409,7 +2409,8 @@
         }
 
         // See if this device has any stylus buttons that we would want to fuse with touch data.
-        if (!device->classes.any(InputDeviceClass::TOUCH | InputDeviceClass::TOUCH_MT)) {
+        if (!device->classes.any(InputDeviceClass::TOUCH | InputDeviceClass::TOUCH_MT) &&
+            !device->classes.any(InputDeviceClass::ALPHAKEY)) {
             for (int32_t keycode : STYLUS_BUTTON_KEYCODES) {
                 if (device->hasKeycodeLocked(keycode)) {
                     device->classes |= InputDeviceClass::EXTERNAL_STYLUS;
diff --git a/services/inputflinger/reader/mapper/gestures/PropertyProvider.cpp b/services/inputflinger/reader/mapper/gestures/PropertyProvider.cpp
index be2bfed..69264f8 100644
--- a/services/inputflinger/reader/mapper/gestures/PropertyProvider.cpp
+++ b/services/inputflinger/reader/mapper/gestures/PropertyProvider.cpp
@@ -239,7 +239,7 @@
 
 // Helper to std::visit with lambdas.
 template <typename... V>
-struct Visitor : V... {};
+struct Visitor : V... { using V::operator()...; };
 // explicit deduction guide (not needed as of C++20)
 template <typename... V>
 Visitor(V...) -> Visitor<V...>;
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 5141acb..38b32b3 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -1476,6 +1476,46 @@
             AllOf(UP, WithKeyCode(AKEYCODE_STYLUS_BUTTON_TERTIARY))));
 }
 
+TEST_F(InputReaderIntegrationTest, KeyboardWithStylusButtons) {
+    std::unique_ptr<UinputKeyboard> keyboard =
+            createUinputDevice<UinputKeyboard>("KeyboardWithStylusButtons", /*productId=*/99,
+                                               std::initializer_list<int>{KEY_Q, KEY_W, KEY_E,
+                                                                          KEY_R, KEY_T, KEY_Y,
+                                                                          BTN_STYLUS, BTN_STYLUS2,
+                                                                          BTN_STYLUS3});
+    ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
+
+    const auto device = findDeviceByName(keyboard->getName());
+    ASSERT_TRUE(device.has_value());
+
+    // An alphabetical keyboard that reports stylus buttons should not be recognized as a stylus.
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, device->getSources())
+            << "Unexpected source " << inputEventSourceToString(device->getSources()).c_str();
+    ASSERT_EQ(AINPUT_KEYBOARD_TYPE_ALPHABETIC, device->getKeyboardType());
+}
+
+TEST_F(InputReaderIntegrationTest, HidUsageKeyboardIsNotAStylus) {
+    // Create a Uinput keyboard that simulates a keyboard that can report HID usage codes. The
+    // hid-input driver reports HID usage codes using the value for EV_MSC MSC_SCAN event.
+    std::unique_ptr<UinputKeyboardWithHidUsage> keyboard =
+            createUinputDevice<UinputKeyboardWithHidUsage>(
+                    std::initializer_list<int>{KEY_VOLUMEUP, KEY_VOLUMEDOWN});
+    ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
+
+    const auto device = findDeviceByName(keyboard->getName());
+    ASSERT_TRUE(device.has_value());
+
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, device->getSources())
+            << "Unexpected source " << inputEventSourceToString(device->getSources()).c_str();
+
+    // If a device supports reporting HID usage codes, it shouldn't automatically support
+    // stylus keys.
+    const std::vector<int> keycodes{AKEYCODE_STYLUS_BUTTON_PRIMARY};
+    uint8_t outFlags[] = {0};
+    ASSERT_TRUE(mReader->hasKeys(device->getId(), AINPUT_SOURCE_KEYBOARD, keycodes, outFlags));
+    ASSERT_EQ(0, outFlags[0]) << "Keyboard should not have stylus button";
+}
+
 /**
  * The Steam controller sends BTN_GEAR_DOWN and BTN_GEAR_UP for the two "paddle" buttons
  * on the back. In this test, we make sure that BTN_GEAR_DOWN / BTN_WHEEL and BTN_GEAR_UP
diff --git a/services/inputflinger/tests/UinputDevice.cpp b/services/inputflinger/tests/UinputDevice.cpp
index 97a2614..5a654c9 100644
--- a/services/inputflinger/tests/UinputDevice.cpp
+++ b/services/inputflinger/tests/UinputDevice.cpp
@@ -157,6 +157,18 @@
     injectEvent(EV_SYN, SYN_REPORT, 0);
 }
 
+// --- UinputKeyboardWithHidUsage ---
+
+UinputKeyboardWithHidUsage::UinputKeyboardWithHidUsage(std::initializer_list<int> keys)
+      : UinputKeyboard(DEVICE_NAME, PRODUCT_ID, keys) {}
+
+void UinputKeyboardWithHidUsage::configureDevice(int fd, uinput_user_dev* device) {
+    UinputKeyboard::configureDevice(fd, device);
+
+    ioctl(fd, UI_SET_EVBIT, EV_MSC);
+    ioctl(fd, UI_SET_MSCBIT, MSC_SCAN);
+}
+
 // --- UinputTouchScreen ---
 
 UinputTouchScreen::UinputTouchScreen(const Rect& size)
diff --git a/services/inputflinger/tests/UinputDevice.h b/services/inputflinger/tests/UinputDevice.h
index 51e331d..55996b8 100644
--- a/services/inputflinger/tests/UinputDevice.h
+++ b/services/inputflinger/tests/UinputDevice.h
@@ -165,13 +165,30 @@
     explicit UinputExternalStylusWithPressure();
 };
 
+// --- UinputKeyboardWithUsage ---
+// A keyboard that supports EV_MSC MSC_SCAN through which it can report HID usage codes.
+
+class UinputKeyboardWithHidUsage : public UinputKeyboard {
+public:
+    static constexpr const char* DEVICE_NAME = "Test Uinput Keyboard With Usage";
+    static constexpr int16_t PRODUCT_ID = 47;
+
+    template <class D, class... Ts>
+    friend std::unique_ptr<D> createUinputDevice(Ts... args);
+
+protected:
+    explicit UinputKeyboardWithHidUsage(std::initializer_list<int> keys);
+
+    void configureDevice(int fd, uinput_user_dev* device) override;
+};
+
 // --- UinputTouchScreen ---
 
 // A multi-touch touchscreen device with specific size that also supports styluses.
 class UinputTouchScreen : public UinputKeyboard {
 public:
     static constexpr const char* DEVICE_NAME = "Test Uinput Touch Screen";
-    static constexpr int16_t PRODUCT_ID = 47;
+    static constexpr int16_t PRODUCT_ID = 48;
 
     static const int32_t RAW_TOUCH_MIN = 0;
     static const int32_t RAW_TOUCH_MAX = 31;
diff --git a/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp b/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp
index 15fadbc..002177b 100644
--- a/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp
@@ -111,8 +111,6 @@
 }
 
 void CompositionEngine::updateCursorAsync(CompositionRefreshArgs& args) {
-    std::unordered_map<compositionengine::LayerFE*, compositionengine::LayerFECompositionState*>
-            uniqueVisibleLayers;
 
     for (const auto& output : args.outputs) {
         for (auto* layer : output->getOutputLayersOrderedByZ()) {
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 343a1db..7c85452 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -896,7 +896,7 @@
         mRenderEnginePrimeCacheFuture = getRenderEngine().primeCache();
 
         if (setSchedFifo(true) != NO_ERROR) {
-            ALOGW("Can't set SCHED_OTHER for primeCache");
+            ALOGW("Can't set SCHED_FIFO after primeCache");
         }
     }
 
diff --git a/services/surfaceflinger/fuzzer/Android.bp b/services/surfaceflinger/fuzzer/Android.bp
index f76a8d7..9534bd8 100644
--- a/services/surfaceflinger/fuzzer/Android.bp
+++ b/services/surfaceflinger/fuzzer/Android.bp
@@ -73,9 +73,17 @@
     ],
     fuzz_config: {
         cc: [
-            "android-media-fuzzing-reports@google.com",
+            "android-cogs-eng@google.com",
         ],
-        componentid: 155276,
+        componentid: 1075131,
+        hotlists: [
+            "4593311",
+        ],
+        description: "The fuzzer targets the APIs of libsurfaceflinger library",
+        vector: "local_no_privileges_required",
+        service_privilege: "privileged",
+        users: "multi_user",
+        fuzzed_code_usage: "shipped",
     },
 }
 
diff --git a/services/surfaceflinger/tests/tracing/TransactionTraceTestSuite.cpp b/services/surfaceflinger/tests/tracing/TransactionTraceTestSuite.cpp
index 2b29530..0b2e5a3 100644
--- a/services/surfaceflinger/tests/tracing/TransactionTraceTestSuite.cpp
+++ b/services/surfaceflinger/tests/tracing/TransactionTraceTestSuite.cpp
@@ -118,7 +118,7 @@
         << info.touchableRegionBounds.right << "," << info.touchableRegionBounds.bottom << "}";
 }
 
-struct find_id : std::unary_function<LayerInfo, bool> {
+struct find_id {
     int id;
     find_id(int id) : id(id) {}
     bool operator()(LayerInfo const& m) const { return m.id == id; }
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp
index a2c54ac..db6df22 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp
@@ -26,8 +26,6 @@
 
 namespace android {
 
-using aidl::android::hardware::graphics::common::HdrConversionCapability;
-using aidl::android::hardware::graphics::common::HdrConversionStrategy;
 using GuiHdrConversionStrategyTag = gui::HdrConversionStrategy::Tag;
 using gui::aidl_utils::statusTFromBinderStatus;
 
@@ -66,17 +64,15 @@
             sf->getHdrOutputConversionSupport(&hdrOutputConversionSupport);
     ASSERT_EQ(NO_ERROR, statusTFromBinderStatus(getSupportStatus));
 
-    std::vector<HdrConversionStrategy> strategies =
-            {HdrConversionStrategy(std::in_place_index<static_cast<size_t>(
-                                           GuiHdrConversionStrategyTag::passthrough)>),
-             HdrConversionStrategy(std::in_place_index<static_cast<size_t>(
-                                           GuiHdrConversionStrategyTag::autoAllowedHdrTypes)>),
-             HdrConversionStrategy(std::in_place_index<static_cast<size_t>(
-                                           GuiHdrConversionStrategyTag::forceHdrConversion)>)};
+    std::vector<gui::HdrConversionStrategy> strategies = {
+            gui::HdrConversionStrategy::make<GuiHdrConversionStrategyTag::passthrough>(),
+            gui::HdrConversionStrategy::make<GuiHdrConversionStrategyTag::autoAllowedHdrTypes>(),
+            gui::HdrConversionStrategy::make<GuiHdrConversionStrategyTag::forceHdrConversion>(),
+    };
     int32_t outPreferredHdrOutputType = 0;
 
-    for (HdrConversionStrategy strategy : strategies) {
-        binder::Status status = sf->setHdrConversionStrategy(&strategy, &outPreferredHdrOutputType);
+    for (const gui::HdrConversionStrategy& strategy : strategies) {
+        binder::Status status = sf->setHdrConversionStrategy(strategy, &outPreferredHdrOutputType);
 
         if (hdrOutputConversionSupport) {
             ASSERT_EQ(NO_ERROR, statusTFromBinderStatus(status));
diff --git a/services/vibratorservice/Android.bp b/services/vibratorservice/Android.bp
index 5403baf..2002bdf 100644
--- a/services/vibratorservice/Android.bp
+++ b/services/vibratorservice/Android.bp
@@ -59,12 +59,6 @@
         "-Wunreachable-code",
     ],
 
-    // FIXME: Workaround LTO build breakage
-    // http://b/241699694
-    lto: {
-        never: true,
-    },
-
     local_include_dirs: ["include"],
 
     export_include_dirs: ["include"],
diff --git a/vulkan/libvulkan/Android.bp b/vulkan/libvulkan/Android.bp
index a87f82f..436e6c6 100644
--- a/vulkan/libvulkan/Android.bp
+++ b/vulkan/libvulkan/Android.bp
@@ -109,6 +109,7 @@
         "libnativeloader_lazy",
         "libnativewindow",
         "libvndksupport",
+        "libdl_android",
         "android.hardware.graphics.common@1.0",
         "libSurfaceFlingerProp",
     ],
diff --git a/vulkan/libvulkan/driver.cpp b/vulkan/libvulkan/driver.cpp
index aea897c..a16ab48 100644
--- a/vulkan/libvulkan/driver.cpp
+++ b/vulkan/libvulkan/driver.cpp
@@ -46,6 +46,8 @@
 using namespace android::hardware::configstore;
 using namespace android::hardware::configstore::V1_0;
 
+extern "C" android_namespace_t* android_get_exported_namespace(const char*);
+
 // #define ENABLE_ALLOC_CALLSTACKS 1
 #if ENABLE_ALLOC_CALLSTACKS
 #include <utils/CallStack.h>
@@ -159,6 +161,7 @@
     "ro.board.platform",
 }};
 constexpr int LIB_DL_FLAGS = RTLD_LOCAL | RTLD_NOW;
+constexpr char RO_VULKAN_APEX_PROPERTY[] = "ro.vulkan.apex";
 
 // LoadDriver returns:
 // * 0 when succeed, or
@@ -166,6 +169,7 @@
 // * -EINVAL when fail to find HAL_MODULE_INFO_SYM_AS_STR or
 //   HWVULKAN_HARDWARE_MODULE_ID in the library.
 int LoadDriver(android_namespace_t* library_namespace,
+               const char* ns_name,
                const hwvulkan_module_t** module) {
     ATRACE_CALL();
 
@@ -183,8 +187,10 @@
                 .library_namespace = library_namespace,
             };
             so = android_dlopen_ext(lib_name.c_str(), LIB_DL_FLAGS, &dlextinfo);
-            ALOGE("Could not load %s from updatable gfx driver namespace: %s.",
-                  lib_name.c_str(), dlerror());
+            if (!so) {
+                ALOGE("Could not load %s from %s namespace: %s.",
+                      lib_name.c_str(), ns_name, dlerror());
+            }
         } else {
             // load built-in driver
             so = android_load_sphal_library(lib_name.c_str(), LIB_DL_FLAGS);
@@ -211,12 +217,30 @@
     return 0;
 }
 
+int LoadDriverFromApex(const hwvulkan_module_t** module) {
+    ATRACE_CALL();
+
+    auto apex_name = android::base::GetProperty(RO_VULKAN_APEX_PROPERTY, "");
+    if (apex_name == "") {
+        return -ENOENT;
+    }
+    // Get linker namespace for Vulkan APEX
+    std::replace(apex_name.begin(), apex_name.end(), '.', '_');
+    auto ns = android_get_exported_namespace(apex_name.c_str());
+    if (!ns) {
+        return -ENOENT;
+    }
+    android::GraphicsEnv::getInstance().setDriverToLoad(
+        android::GpuStatsInfo::Driver::VULKAN);
+    return LoadDriver(ns, apex_name.c_str(), module);
+}
+
 int LoadBuiltinDriver(const hwvulkan_module_t** module) {
     ATRACE_CALL();
 
     android::GraphicsEnv::getInstance().setDriverToLoad(
         android::GpuStatsInfo::Driver::VULKAN);
-    return LoadDriver(nullptr, module);
+    return LoadDriver(nullptr, nullptr, module);
 }
 
 int LoadUpdatedDriver(const hwvulkan_module_t** module) {
@@ -227,7 +251,7 @@
         return -ENOENT;
     android::GraphicsEnv::getInstance().setDriverToLoad(
         android::GpuStatsInfo::Driver::VULKAN_UPDATED);
-    int result = LoadDriver(ns, module);
+    int result = LoadDriver(ns, "updatable gfx driver", module);
     if (result != 0) {
         LOG_ALWAYS_FATAL(
             "couldn't find an updated Vulkan implementation from %s",
@@ -256,6 +280,9 @@
 
     result = LoadUpdatedDriver(&module);
     if (result == -ENOENT) {
+        result = LoadDriverFromApex(&module);
+    }
+    if (result == -ENOENT) {
         result = LoadBuiltinDriver(&module);
     }
     if (result != 0) {