Merge "DO_NOT_MERGE Fix primaryRangeIsSingleRate + touch on dVRR" into android15-tests-dev am: 726ca29066 Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3275058 Change-Id: If5e739faf7321dd4785268ed6c9dfc0d98102016 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

commit: c73f2d09e45de6fa9838442d1a1b37cac280b23a [log] [tgz]
author: Rachel Lee <rnlee@google.com> Fri Sep 20 23:26:56 2024 +0000
committer: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> Fri Sep 20 23:26:56 2024 +0000
tree: bbe5e397562c12ac8ffb944b9ec08a753c4d6b1d
parent: 713ee06b99e64b11f01c97c22f10de70717ec2e9 [diff]
parent: 726ca29066887e3eb993c3eafc3ab73c9d6707b3 [diff]
diff --git a/cmds/atrace/atrace_userdebug.rc b/cmds/atrace/atrace_userdebug.rc
index fa7be18..041ffe1 100644
--- a/cmds/atrace/atrace_userdebug.rc
+++ b/cmds/atrace/atrace_userdebug.rc

@@ -24,3 +24,7 @@
     chmod 0666 /sys/kernel/debug/tracing/events/raw_syscalls/sys_enter/filter
     chmod 0666 /sys/kernel/tracing/events/raw_syscalls/sys_exit/filter
     chmod 0666 /sys/kernel/debug/tracing/events/raw_syscalls/sys_exit/filter
+
+    # Allow traced_probes to use the kprobe interface
+    chmod 0666 /sys/kernel/debug/tracing/kprobe_events
+    chmod 0666 /sys/kernel/tracing/kprobe_events

diff --git a/cmds/installd/otapreopt_script.sh b/cmds/installd/otapreopt_script.sh
index 9384926..b7ad331 100644
--- a/cmds/installd/otapreopt_script.sh
+++ b/cmds/installd/otapreopt_script.sh

@@ -60,7 +60,7 @@
 }
 
 PR_DEXOPT_JOB_VERSION="$(pm art pr-dexopt-job --version)"
-if (( $? == 0 )) && (( $PR_DEXOPT_JOB_VERSION >= 2 )); then
+if (( $? == 0 )) && (( $PR_DEXOPT_JOB_VERSION >= 3 )); then
   # Delegate to Pre-reboot Dexopt, a feature of ART Service.
   # ART Service decides what to do with this request:
   # - If Pre-reboot Dexopt is disabled or unsupported, the command returns

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+++ b/cmds/installd/tests/corpus/seed-2024-08-29-97
Binary files differ

diff --git a/cmds/installd/tests/corpus/seed-2024-08-29-98 b/cmds/installd/tests/corpus/seed-2024-08-29-98
new file mode 100644
index 0000000..520feb2
--- /dev/null
+++ b/cmds/installd/tests/corpus/seed-2024-08-29-98
Binary files differ

diff --git a/cmds/installd/tests/corpus/seed-2024-08-29-99 b/cmds/installd/tests/corpus/seed-2024-08-29-99
new file mode 100644
index 0000000..c1da923
--- /dev/null
+++ b/cmds/installd/tests/corpus/seed-2024-08-29-99
Binary files differ

diff --git a/cmds/installd/tests/installd_dexopt_test.cpp b/cmds/installd/tests/installd_dexopt_test.cpp
index ee91d80..e89543e 100644
--- a/cmds/installd/tests/installd_dexopt_test.cpp
+++ b/cmds/installd/tests/installd_dexopt_test.cpp

@@ -1449,7 +1449,7 @@
 
 class BootProfileTest : public ProfileTest {
   public:
-    std::vector<const std::string> extra_apps_;
+    std::vector<std::string> extra_apps_;
     std::vector<int64_t> extra_ce_data_inodes_;
 
     virtual void SetUp() {

diff --git a/cmds/installd/tests/installd_utils_test.cpp b/cmds/installd/tests/installd_utils_test.cpp
index 910cd63..19201b2 100644
--- a/cmds/installd/tests/installd_utils_test.cpp
+++ b/cmds/installd/tests/installd_utils_test.cpp

@@ -101,6 +101,9 @@
     EXPECT_EQ(0, validate_apk_path(path2))
             << path2 << " should be allowed as a valid path";
 
+    const char* path3 = TEST_APP_DIR "..example..com../example.apk";
+    EXPECT_EQ(0, validate_apk_path(path3)) << path3 << " should be allowed as a valid path";
+
     const char *badint1 = TEST_APP_DIR "../example.apk";
     EXPECT_EQ(-1, validate_apk_path(badint1))
             << badint1 << " should be rejected as a invalid path";

diff --git a/cmds/installd/utils.cpp b/cmds/installd/utils.cpp
index ffc082d..b05c655 100644
--- a/cmds/installd/utils.cpp
+++ b/cmds/installd/utils.cpp

@@ -1040,25 +1040,30 @@
         LOG(ERROR) << "Invalid directory " << dir;
         return -1;
     }
-    if (path.find("..") != std::string::npos) {
-        LOG(ERROR) << "Invalid path " << path;
-        return -1;
-    }
 
     if (path.compare(0, dir.size(), dir) != 0) {
         // Common case, path isn't under directory
         return -1;
     }
 
-    // Count number of subdirectories
-    auto pos = path.find('/', dir.size());
+    // Count number of subdirectories and invalidate ".." subdirectories
+    auto last = dir.size();
+    auto pos = path.find('/', last);
     int count = 0;
     while (pos != std::string::npos) {
-        auto next = path.find('/', pos + 1);
-        if (next > pos + 1) {
+        if (pos > last + 1) {
             count++;
         }
-        pos = next;
+        if (path.substr(last, pos - last) == "..") {
+            LOG(ERROR) << "Invalid path " << path;
+            return -1;
+        }
+        last = pos + 1;
+        pos = path.find('/', last);
+    }
+    if (path.substr(last, path.size() - last) == "..") {
+        LOG(ERROR) << "Invalid path " << path;
+        return -1;
     }
 
     if (count > maxSubdirs) {

diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index 1333599..fa7cb64 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp

@@ -29,6 +29,7 @@
 #include <thread>
 
 #if !defined(VENDORSERVICEMANAGER) && !defined(__ANDROID_RECOVERY__)
+#include "perfetto/public/protos/trace/android/android_track_event.pzc.h"
 #include "perfetto/public/te_category_macros.h"
 #include "perfetto/public/te_macros.h"
 #endif // !defined(VENDORSERVICEMANAGER) && !defined(__ANDROID_RECOVERY__)
@@ -57,6 +58,12 @@
 #define SM_PERFETTO_TRACE_FUNC(...) \
     PERFETTO_TE_SCOPED(servicemanager, PERFETTO_TE_SLICE_BEGIN(__func__) __VA_OPT__(, ) __VA_ARGS__)
 
+constexpr uint32_t kProtoServiceName =
+        perfetto_protos_AndroidTrackEvent_binder_service_name_field_number;
+constexpr uint32_t kProtoInterfaceName =
+        perfetto_protos_AndroidTrackEvent_binder_interface_name_field_number;
+constexpr uint32_t kProtoApexName = perfetto_protos_AndroidTrackEvent_apex_name_field_number;
+
 #endif // !(defined(VENDORSERVICEMANAGER) || defined(__ANDROID_RECOVERY__))
 
 bool is_multiuser_uid_isolated(uid_t uid) {
@@ -112,13 +119,15 @@
     std::string iface;
     std::string instance;
 
-    static bool fill(const std::string& name, AidlName* aname) {
+    static bool fill(const std::string& name, AidlName* aname, bool logError) {
         size_t firstSlash = name.find('/');
         size_t lastDot = name.rfind('.', firstSlash);
         if (firstSlash == std::string::npos || lastDot == std::string::npos) {
-            ALOGE("VINTF HALs require names in the format type/instance (e.g. "
-                  "some.package.foo.IFoo/default) but got: %s",
-                  name.c_str());
+            if (logError) {
+                ALOGE("VINTF HALs require names in the format type/instance (e.g. "
+                      "some.package.foo.IFoo/default) but got: %s",
+                      name.c_str());
+            }
             return false;
         }
         aname->package = name.substr(0, lastDot);
@@ -151,7 +160,7 @@
     }
 
     AidlName aname;
-    if (!AidlName::fill(name, &aname)) return false;
+    if (!AidlName::fill(name, &aname, true)) return false;
 
     bool found = forEachManifest([&](const ManifestWithDescription& mwd) {
         if (mwd.manifest->hasAidlInstance(aname.package, aname.iface, aname.instance)) {
@@ -209,7 +218,7 @@
     }
 
     AidlName aname;
-    if (!AidlName::fill(name, &aname)) return std::nullopt;
+    if (!AidlName::fill(name, &aname, true)) return std::nullopt;
 
     std::optional<std::string> updatableViaApex;
 
@@ -249,9 +258,28 @@
     return names;
 }
 
+static std::optional<std::string> getVintfAccessorName(const std::string& name) {
+    AidlName aname;
+    if (!AidlName::fill(name, &aname, false)) return std::nullopt;
+
+    std::optional<std::string> accessor;
+    forEachManifest([&](const ManifestWithDescription& mwd) {
+        mwd.manifest->forEachInstance([&](const auto& manifestInstance) {
+            if (manifestInstance.format() != vintf::HalFormat::AIDL) return true;
+            if (manifestInstance.package() != aname.package) return true;
+            if (manifestInstance.interface() != aname.iface) return true;
+            if (manifestInstance.instance() != aname.instance) return true;
+            accessor = manifestInstance.accessor();
+            return false; // break (libvintf uses opposite convention)
+        });
+        return false; // continue
+    });
+    return accessor;
+}
+
 static std::optional<ConnectionInfo> getVintfConnectionInfo(const std::string& name) {
     AidlName aname;
-    if (!AidlName::fill(name, &aname)) return std::nullopt;
+    if (!AidlName::fill(name, &aname, true)) return std::nullopt;
 
     std::optional<std::string> ip;
     std::optional<uint64_t> port;
@@ -365,23 +393,52 @@
 }
 
 Status ServiceManager::getService(const std::string& name, sp<IBinder>* outBinder) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
-    *outBinder = tryGetService(name, true);
+    *outBinder = tryGetBinder(name, true);
     // returns ok regardless of result for legacy reasons
     return Status::ok();
 }
 
-Status ServiceManager::checkService(const std::string& name, sp<IBinder>* outBinder) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+Status ServiceManager::getService2(const std::string& name, os::Service* outService) {
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
-    *outBinder = tryGetService(name, false);
+    *outService = tryGetService(name, true);
     // returns ok regardless of result for legacy reasons
     return Status::ok();
 }
 
-sp<IBinder> ServiceManager::tryGetService(const std::string& name, bool startIfNotFound) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+Status ServiceManager::checkService(const std::string& name, os::Service* outService) {
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
+
+    *outService = tryGetService(name, false);
+    // returns ok regardless of result for legacy reasons
+    return Status::ok();
+}
+
+os::Service ServiceManager::tryGetService(const std::string& name, bool startIfNotFound) {
+    std::optional<std::string> accessorName;
+#ifndef VENDORSERVICEMANAGER
+    accessorName = getVintfAccessorName(name);
+#endif
+    if (accessorName.has_value()) {
+        auto ctx = mAccess->getCallingContext();
+        if (!mAccess->canFind(ctx, name)) {
+            return os::Service::make<os::Service::Tag::accessor>(nullptr);
+        }
+        return os::Service::make<os::Service::Tag::accessor>(
+                tryGetBinder(*accessorName, startIfNotFound));
+    } else {
+        return os::Service::make<os::Service::Tag::binder>(tryGetBinder(name, startIfNotFound));
+    }
+}
+
+sp<IBinder> ServiceManager::tryGetBinder(const std::string& name, bool startIfNotFound) {
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -421,7 +478,8 @@
 }
 
 bool isValidServiceName(const std::string& name) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     if (name.size() == 0) return false;
     if (name.size() > 127) return false;
@@ -438,7 +496,8 @@
 }
 
 Status ServiceManager::addService(const std::string& name, const sp<IBinder>& binder, bool allowIsolated, int32_t dumpPriority) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -446,8 +505,9 @@
         return Status::fromExceptionCode(Status::EX_SECURITY, "App UIDs cannot add services.");
     }
 
-    if (!mAccess->canAdd(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
+    std::optional<std::string> accessorName;
+    if (auto status = canAddService(ctx, name, &accessorName); !status.isOk()) {
+        return status;
     }
 
     if (binder == nullptr) {
@@ -561,12 +621,16 @@
 
 Status ServiceManager::registerForNotifications(
         const std::string& name, const sp<IServiceCallback>& callback) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
-    if (!mAccess->canFind(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux");
+    // TODO(b/338541373): Implement the notification mechanism for services accessed via
+    // IAccessor.
+    std::optional<std::string> accessorName;
+    if (auto status = canFindService(ctx, name, &accessorName); !status.isOk()) {
+        return status;
     }
 
     // note - we could allow isolated apps to get notifications if we
@@ -609,12 +673,14 @@
 }
 Status ServiceManager::unregisterForNotifications(
         const std::string& name, const sp<IServiceCallback>& callback) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
-    if (!mAccess->canFind(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
+    std::optional<std::string> accessorName;
+    if (auto status = canFindService(ctx, name, &accessorName); !status.isOk()) {
+        return status;
     }
 
     bool found = false;
@@ -634,12 +700,14 @@
 }
 
 Status ServiceManager::isDeclared(const std::string& name, bool* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
-    if (!mAccess->canFind(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
+    std::optional<std::string> accessorName;
+    if (auto status = canFindService(ctx, name, &accessorName); !status.isOk()) {
+        return status;
     }
 
     *outReturn = false;
@@ -651,7 +719,8 @@
 }
 
 binder::Status ServiceManager::getDeclaredInstances(const std::string& interface, std::vector<std::string>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("interface", interface.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoInterfaceName, interface.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -662,8 +731,10 @@
 
     outReturn->clear();
 
+    std::optional<std::string> _accessorName;
     for (const std::string& instance : allInstances) {
-        if (mAccess->canFind(ctx, interface + "/" + instance)) {
+        if (auto status = canFindService(ctx, interface + "/" + instance, &_accessorName);
+            status.isOk()) {
             outReturn->push_back(instance);
         }
     }
@@ -677,12 +748,14 @@
 
 Status ServiceManager::updatableViaApex(const std::string& name,
                                         std::optional<std::string>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
-    if (!mAccess->canFind(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
+    std::optional<std::string> _accessorName;
+    if (auto status = canFindService(ctx, name, &_accessorName); !status.isOk()) {
+        return status;
     }
 
     *outReturn = std::nullopt;
@@ -695,7 +768,8 @@
 
 Status ServiceManager::getUpdatableNames([[maybe_unused]] const std::string& apexName,
                                          std::vector<std::string>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("apexName", apexName.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoApexName, apexName.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
@@ -706,8 +780,9 @@
 
     outReturn->clear();
 
+    std::optional<std::string> _accessorName;
     for (const std::string& name : apexUpdatableNames) {
-        if (mAccess->canFind(ctx, name)) {
+        if (auto status = canFindService(ctx, name, &_accessorName); status.isOk()) {
             outReturn->push_back(name);
         }
     }
@@ -720,12 +795,14 @@
 
 Status ServiceManager::getConnectionInfo(const std::string& name,
                                          std::optional<ConnectionInfo>* outReturn) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     auto ctx = mAccess->getCallingContext();
 
-    if (!mAccess->canFind(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
+    std::optional<std::string> _accessorName;
+    if (auto status = canFindService(ctx, name, &_accessorName); !status.isOk()) {
+        return status;
     }
 
     *outReturn = std::nullopt;
@@ -804,15 +881,17 @@
 
 Status ServiceManager::registerClientCallback(const std::string& name, const sp<IBinder>& service,
                                               const sp<IClientCallback>& cb) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     if (cb == nullptr) {
         return Status::fromExceptionCode(Status::EX_NULL_POINTER, "Callback null.");
     }
 
     auto ctx = mAccess->getCallingContext();
-    if (!mAccess->canAdd(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
+    std::optional<std::string> accessorName;
+    if (auto status = canAddService(ctx, name, &accessorName); !status.isOk()) {
+        return status;
     }
 
     auto serviceIt = mNameToService.find(name);
@@ -966,15 +1045,17 @@
 }
 
 Status ServiceManager::tryUnregisterService(const std::string& name, const sp<IBinder>& binder) {
-    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_ARG_STRING("name", name.c_str()));
+    SM_PERFETTO_TRACE_FUNC(PERFETTO_TE_PROTO_FIELDS(
+            PERFETTO_TE_PROTO_FIELD_CSTR(kProtoServiceName, name.c_str())));
 
     if (binder == nullptr) {
         return Status::fromExceptionCode(Status::EX_NULL_POINTER, "Null service.");
     }
 
     auto ctx = mAccess->getCallingContext();
-    if (!mAccess->canAdd(ctx, name)) {
-        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied.");
+    std::optional<std::string> accessorName;
+    if (auto status = canAddService(ctx, name, &accessorName); !status.isOk()) {
+        return status;
     }
 
     auto serviceIt = mNameToService.find(name);
@@ -1032,6 +1113,40 @@
     return Status::ok();
 }
 
+Status ServiceManager::canAddService(const Access::CallingContext& ctx, const std::string& name,
+                                     std::optional<std::string>* accessor) {
+    if (!mAccess->canAdd(ctx, name)) {
+        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied for service.");
+    }
+#ifndef VENDORSERVICEMANAGER
+    *accessor = getVintfAccessorName(name);
+#endif
+    if (accessor->has_value()) {
+        if (!mAccess->canAdd(ctx, accessor->value())) {
+            return Status::fromExceptionCode(Status::EX_SECURITY,
+                                             "SELinux denied for the accessor of the service.");
+        }
+    }
+    return Status::ok();
+}
+
+Status ServiceManager::canFindService(const Access::CallingContext& ctx, const std::string& name,
+                                      std::optional<std::string>* accessor) {
+    if (!mAccess->canFind(ctx, name)) {
+        return Status::fromExceptionCode(Status::EX_SECURITY, "SELinux denied for service.");
+    }
+#ifndef VENDORSERVICEMANAGER
+    *accessor = getVintfAccessorName(name);
+#endif
+    if (accessor->has_value()) {
+        if (!mAccess->canFind(ctx, accessor->value())) {
+            return Status::fromExceptionCode(Status::EX_SECURITY,
+                                             "SELinux denied for the accessor of the service.");
+        }
+    }
+    return Status::ok();
+}
+
 Status ServiceManager::getServiceDebugInfo(std::vector<ServiceDebugInfo>* outReturn) {
     SM_PERFETTO_TRACE_FUNC();
     if (!mAccess->canList(mAccess->getCallingContext())) {

diff --git a/cmds/servicemanager/ServiceManager.h b/cmds/servicemanager/ServiceManager.h
index 1536014..c92141b 100644
--- a/cmds/servicemanager/ServiceManager.h
+++ b/cmds/servicemanager/ServiceManager.h

@@ -45,7 +45,8 @@
 
     // getService will try to start any services it cannot find
     binder::Status getService(const std::string& name, sp<IBinder>* outBinder) override;
-    binder::Status checkService(const std::string& name, sp<IBinder>* outBinder) override;
+    binder::Status getService2(const std::string& name, os::Service* outService) override;
+    binder::Status checkService(const std::string& name, os::Service* outService) override;
     binder::Status addService(const std::string& name, const sp<IBinder>& binder,
                               bool allowIsolated, int32_t dumpPriority) override;
     binder::Status listServices(int32_t dumpPriority, std::vector<std::string>* outList) override;
@@ -112,7 +113,12 @@
     // this updates the iterator to the next location
     void removeClientCallback(const wp<IBinder>& who, ClientCallbackMap::iterator* it);
 
-    sp<IBinder> tryGetService(const std::string& name, bool startIfNotFound);
+    os::Service tryGetService(const std::string& name, bool startIfNotFound);
+    sp<IBinder> tryGetBinder(const std::string& name, bool startIfNotFound);
+    binder::Status canAddService(const Access::CallingContext& ctx, const std::string& name,
+                                 std::optional<std::string>* accessor);
+    binder::Status canFindService(const Access::CallingContext& ctx, const std::string& name,
+                                  std::optional<std::string>* accessor);
 
     ServiceMap mNameToService;
     ServiceCallbackMap mNameToRegistrationCallback;

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-0 b/cmds/servicemanager/corpus/seed-2024-08-29-0
new file mode 100644
index 0000000..fe4942e
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-0
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-1 b/cmds/servicemanager/corpus/seed-2024-08-29-1
new file mode 100644
index 0000000..05c8be2
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-1
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-10 b/cmds/servicemanager/corpus/seed-2024-08-29-10
new file mode 100644
index 0000000..427dc45
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-10
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-100 b/cmds/servicemanager/corpus/seed-2024-08-29-100
new file mode 100644
index 0000000..92584e3
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-100
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-101 b/cmds/servicemanager/corpus/seed-2024-08-29-101
new file mode 100644
index 0000000..4dd73ac
--- /dev/null
+++ b/cmds/servicemanager/corpus/seed-2024-08-29-101
Binary files differ

diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-102 b/cmds/servicemanager/corpus/seed-2024-08-29-102
new file mode 100644
index 0000000..30c37a0
--- /dev/null
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diff --git a/cmds/servicemanager/test_sm.cpp b/cmds/servicemanager/test_sm.cpp
index b575053..95f459f 100644
--- a/cmds/servicemanager/test_sm.cpp
+++ b/cmds/servicemanager/test_sm.cpp

@@ -38,6 +38,7 @@
 using android::binder::Status;
 using android::os::BnServiceCallback;
 using android::os::IServiceManager;
+using android::os::Service;
 using testing::_;
 using testing::ElementsAre;
 using testing::NiceMock;
@@ -153,18 +154,24 @@
     EXPECT_TRUE(sm->addService("foo", serviceA, false /*allowIsolated*/,
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
-    sp<IBinder> outA;
-    EXPECT_TRUE(sm->getService("foo", &outA).isOk());
-    EXPECT_EQ(serviceA, outA);
+    Service outA;
+    EXPECT_TRUE(sm->getService2("foo", &outA).isOk());
+    EXPECT_EQ(serviceA, outA.get<Service::Tag::binder>());
+    sp<IBinder> outBinderA;
+    EXPECT_TRUE(sm->getService("foo", &outBinderA).isOk());
+    EXPECT_EQ(serviceA, outBinderA);
 
     // serviceA should be overwritten by serviceB
     sp<IBinder> serviceB = getBinder();
     EXPECT_TRUE(sm->addService("foo", serviceB, false /*allowIsolated*/,
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
-    sp<IBinder> outB;
-    EXPECT_TRUE(sm->getService("foo", &outB).isOk());
-    EXPECT_EQ(serviceB, outB);
+    Service outB;
+    EXPECT_TRUE(sm->getService2("foo", &outB).isOk());
+    EXPECT_EQ(serviceB, outB.get<Service::Tag::binder>());
+    sp<IBinder> outBinderB;
+    EXPECT_TRUE(sm->getService("foo", &outBinderB).isOk());
+    EXPECT_EQ(serviceB, outBinderB);
 }
 
 TEST(AddService, NoPermissions) {
@@ -186,17 +193,23 @@
     EXPECT_TRUE(sm->addService("foo", service, false /*allowIsolated*/,
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
-    sp<IBinder> out;
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
-    EXPECT_EQ(service, out);
+    Service out;
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
+    EXPECT_EQ(service, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(service, outBinder);
 }
 
 TEST(GetService, NonExistant) {
     auto sm = getPermissiveServiceManager();
 
-    sp<IBinder> out;
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
-    EXPECT_EQ(nullptr, out.get());
+    Service out;
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
+    EXPECT_EQ(nullptr, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(nullptr, outBinder);
 }
 
 TEST(GetService, NoPermissionsForGettingService) {
@@ -204,31 +217,37 @@
 
     EXPECT_CALL(*access, getCallingContext()).WillRepeatedly(Return(Access::CallingContext{}));
     EXPECT_CALL(*access, canAdd(_, _)).WillOnce(Return(true));
-    EXPECT_CALL(*access, canFind(_, _)).WillOnce(Return(false));
+    EXPECT_CALL(*access, canFind(_, _)).WillRepeatedly(Return(false));
 
     sp<ServiceManager> sm = sp<NiceMock<MockServiceManager>>::make(std::move(access));
 
     EXPECT_TRUE(sm->addService("foo", getBinder(), false /*allowIsolated*/,
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
-    sp<IBinder> out;
+    Service out;
     // returns nullptr but has OK status for legacy compatibility
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
-    EXPECT_EQ(nullptr, out.get());
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
+    EXPECT_EQ(nullptr, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(nullptr, outBinder);
 }
 
 TEST(GetService, AllowedFromIsolated) {
     std::unique_ptr<MockAccess> access = std::make_unique<NiceMock<MockAccess>>();
 
     EXPECT_CALL(*access, getCallingContext())
-        // something adds it
-        .WillOnce(Return(Access::CallingContext{}))
-        // next call is from isolated app
-        .WillOnce(Return(Access::CallingContext{
-            .uid = AID_ISOLATED_START,
-        }));
+            // something adds it
+            .WillOnce(Return(Access::CallingContext{}))
+            // next calls is from isolated app
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }))
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }));
     EXPECT_CALL(*access, canAdd(_, _)).WillOnce(Return(true));
-    EXPECT_CALL(*access, canFind(_, _)).WillOnce(Return(true));
+    EXPECT_CALL(*access, canFind(_, _)).WillRepeatedly(Return(true));
 
     sp<ServiceManager> sm = sp<NiceMock<MockServiceManager>>::make(std::move(access));
 
@@ -236,21 +255,27 @@
     EXPECT_TRUE(sm->addService("foo", service, true /*allowIsolated*/,
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
-    sp<IBinder> out;
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
-    EXPECT_EQ(service, out.get());
+    Service out;
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
+    EXPECT_EQ(service, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(service, outBinder);
 }
 
 TEST(GetService, NotAllowedFromIsolated) {
     std::unique_ptr<MockAccess> access = std::make_unique<NiceMock<MockAccess>>();
 
     EXPECT_CALL(*access, getCallingContext())
-        // something adds it
-        .WillOnce(Return(Access::CallingContext{}))
-        // next call is from isolated app
-        .WillOnce(Return(Access::CallingContext{
-            .uid = AID_ISOLATED_START,
-        }));
+            // something adds it
+            .WillOnce(Return(Access::CallingContext{}))
+            // next calls is from isolated app
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }))
+            .WillOnce(Return(Access::CallingContext{
+                    .uid = AID_ISOLATED_START,
+            }));
     EXPECT_CALL(*access, canAdd(_, _)).WillOnce(Return(true));
 
     // TODO(b/136023468): when security check is first, this should be called first
@@ -261,10 +286,13 @@
     EXPECT_TRUE(sm->addService("foo", getBinder(), false /*allowIsolated*/,
         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT).isOk());
 
-    sp<IBinder> out;
+    Service out;
     // returns nullptr but has OK status for legacy compatibility
-    EXPECT_TRUE(sm->getService("foo", &out).isOk());
-    EXPECT_EQ(nullptr, out.get());
+    EXPECT_TRUE(sm->getService2("foo", &out).isOk());
+    EXPECT_EQ(nullptr, out.get<Service::Tag::binder>());
+    sp<IBinder> outBinder;
+    EXPECT_TRUE(sm->getService("foo", &outBinder).isOk());
+    EXPECT_EQ(nullptr, outBinder);
 }
 
 TEST(ListServices, NoPermissions) {

diff --git a/include/android/performance_hint.h b/include/android/performance_hint.h
index 97e4dc0..8736695 100644
--- a/include/android/performance_hint.h
+++ b/include/android/performance_hint.h

@@ -53,6 +53,7 @@
  */
 
 #include <android/api-level.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
 

diff --git a/include/android/surface_control.h b/include/android/surface_control.h
index 099a2bc..82cacca 100644
--- a/include/android/surface_control.h
+++ b/include/android/surface_control.h

@@ -373,6 +373,28 @@
                                   float b, float alpha, enum ADataSpace dataspace)
         __INTRODUCED_IN(29);
 
+// These APIs (setGeometry and setCrop) were originally written in a
+// C-incompatible form using references instead of pointers, and the OS shipped
+// that version for years before it was noticed. Fortunately the compiled code
+// for callers is the same regardless of whether it's a pointer or a reference,
+// so we can declare this as a nonnull pointer for C and keep the existing C++
+// decl and definition.
+//
+// We could alternatively change the decl and the definition to both be a
+// pointer (with an inline definition using references to preserve source compat
+// for existing C++ callers), but that requires changing the definition of an
+// API that has been in the OS for years. It's theoretically a safe change, but
+// without being able to prove it that's a very big risk to take. By keeping the
+// C-compatibility hack in the header, we can be sure that we haven't changed
+// anything for existing callers. By definition there were no C users of the
+// reference-based decl; if there were any C callers of the API at all, they were
+// using the same workaround that is now used below.
+//
+// Even if this workaround turns out to not work for C, there's no permanent
+// damage done to the platform (unlike if we were to change the definition). At
+// worst it continues to work for C++ (since the preprocessed header as seen by
+// C++ hasn't changed, nor has the definition) and continues to not work for C.
+
 /**
  * \param source The sub-rect within the buffer's content to be rendered inside the surface's area
  * The surface's source rect is clipped by the bounds of its current buffer. The source rect's width
@@ -383,7 +405,7 @@
  * clipped by the bounds of its parent. The destination rect's width and height must be > 0.
  *
  * \param transform The transform applied after the source rect is applied to the buffer. This
- * parameter should be set to 0 for no transform. To specify a transfrom use the
+ * parameter should be set to 0 for no transform. To specify a transform use the
  * NATIVE_WINDOW_TRANSFORM_* enum.
  *
  * Available since API level 29.
@@ -394,9 +416,14 @@
  * properties at once.
  */
 void ASurfaceTransaction_setGeometry(ASurfaceTransaction* _Nonnull transaction,
-                                     ASurfaceControl* _Nonnull surface_control, const ARect& source,
-                                     const ARect& destination, int32_t transform)
-        __INTRODUCED_IN(29);
+                                     ASurfaceControl* _Nonnull surface_control,
+#if defined(__cplusplus)
+                                     const ARect& source, const ARect& destination,
+#else
+                                     const ARect* _Nonnull source,
+                                     const ARect* _Nonnull destination,
+#endif
+                                     int32_t transform) __INTRODUCED_IN(29);
 
 /**
  * Bounds the surface and its children to the bounds specified. The crop and buffer size will be
@@ -408,7 +435,12 @@
  * Available since API level 31.
  */
 void ASurfaceTransaction_setCrop(ASurfaceTransaction* _Nonnull transaction,
-                                 ASurfaceControl* _Nonnull surface_control, const ARect& crop)
+                                 ASurfaceControl* _Nonnull surface_control,
+#if defined(__cplusplus)
+                                 const ARect& crop)
+#else
+                                 const ARect* _Nonnull crop)
+#endif
         __INTRODUCED_IN(31);
 
 /**

diff --git a/include/android/surface_control_input_receiver.h b/include/android/surface_control_input_receiver.h
index bdc5249..f0503f6 100644
--- a/include/android/surface_control_input_receiver.h
+++ b/include/android/surface_control_input_receiver.h

@@ -59,17 +59,13 @@
                                           AInputEvent *_Nonnull keyEvent)
                                           __INTRODUCED_IN(__ANDROID_API_V__);
 
-struct AInputReceiverCallbacks;
-
-struct AInputReceiver;
+typedef struct AInputReceiverCallbacks AInputReceiverCallbacks;
 
 /**
  * The InputReceiver that holds the reference to the registered input channel. This must be released
  * using AInputReceiver_release
- *
- * Available since API level 35.
  */
-typedef struct AInputReceiver AInputReceiver __INTRODUCED_IN(__ANDROID_API_V__);
+typedef struct AInputReceiver AInputReceiver;
 
 /**
  * Registers an input receiver for an ASurfaceControl that will receive batched input event. For

diff --git a/include/android/thermal.h b/include/android/thermal.h
index fa168cd..7f9d2ed 100644
--- a/include/android/thermal.h
+++ b/include/android/thermal.h

@@ -85,6 +85,7 @@
     /** Need shutdown immediately. */
     ATHERMAL_STATUS_SHUTDOWN = 6,
 };
+typedef enum AThermalStatus AThermalStatus;
 
 /**
  * An opaque type representing a handle to a thermal manager.
@@ -240,6 +241,7 @@
     float headroom;
     AThermalStatus thermalStatus;
 };
+typedef struct AThermalHeadroomThreshold AThermalHeadroomThreshold;
 
 /**
  * Gets the thermal headroom thresholds for all available thermal status.

diff --git a/include/ftl/fake_guard.h b/include/ftl/fake_guard.h
index e601251..0bf2870 100644
--- a/include/ftl/fake_guard.h
+++ b/include/ftl/fake_guard.h

@@ -76,12 +76,8 @@
   FTL_ATTRIBUTE(release_capability(mutex))
 #endif
 
-// The parentheses around `expr` are needed to deduce an lvalue or rvalue reference.
-#define FTL_FAKE_GUARD2(mutex, expr)            \
-  [&]() -> decltype(auto) {                     \
-    const android::ftl::FakeGuard guard(mutex); \
-    return (expr);                              \
-  }()
+#define FTL_FAKE_GUARD2(mutex, expr) \
+    (android::ftl::FakeGuard(mutex), expr)
 
 #define FTL_MAKE_FAKE_GUARD(arg1, arg2, guard, ...) guard
 

diff --git a/include/ftl/small_vector.h b/include/ftl/small_vector.h
index 43e9fac..3d5d52e 100644
--- a/include/ftl/small_vector.h
+++ b/include/ftl/small_vector.h

@@ -234,7 +234,7 @@
   }
 
   // Extracts the elements as std::vector.
-  std::vector<T> promote() && {
+  std::vector<std::remove_const_t<T>> promote() && {
     if (dynamic()) {
       return std::get<Dynamic>(std::move(vector_)).promote();
     } else {
@@ -290,11 +290,11 @@
 class SmallVector<T, 0> final : details::ArrayTraits<T>,
                                 details::ArrayComparators<SmallVector>,
                                 details::ArrayIterators<SmallVector<T, 0>, T>,
-                                std::vector<T> {
+                                std::vector<std::remove_const_t<T>> {
   using details::ArrayTraits<T>::replace_at;
 
   using Iter = details::ArrayIterators<SmallVector, T>;
-  using Impl = std::vector<T>;
+  using Impl = std::vector<std::remove_const_t<T>>;
 
   friend Iter;
 
@@ -394,12 +394,12 @@
     pop_back();
   }
 
-  std::vector<T> promote() && { return std::move(*this); }
+  std::vector<std::remove_const_t<T>> promote() && { return std::move(*this); }
 
  private:
   template <typename U, std::size_t M>
   static Impl convert(SmallVector<U, M>&& other) {
-    if constexpr (std::is_constructible_v<Impl, std::vector<U>&&>) {
+    if constexpr (std::is_constructible_v<Impl, std::vector<std::remove_const_t<U>>&&>) {
       return std::move(other).promote();
     } else {
       SmallVector vector(other.size());

diff --git a/include/input/OWNERS b/include/input/OWNERS
index c88bfe9..21d208f 100644
--- a/include/input/OWNERS
+++ b/include/input/OWNERS

@@ -1 +1,2 @@
+# Bug component: 136048
 include platform/frameworks/base:/INPUT_OWNERS

diff --git a/libs/adbd_auth/adbd_auth.cpp b/libs/adbd_auth/adbd_auth.cpp
index 78896ed..d31cb3d 100644
--- a/libs/adbd_auth/adbd_auth.cpp
+++ b/libs/adbd_auth/adbd_auth.cpp

@@ -390,13 +390,16 @@
         }
     }
 
-    static constexpr const char* key_paths[] = {"/adb_keys", "/data/misc/adb/adb_keys"};
+    static constexpr std::pair<const char*, bool> key_paths[] = {
+        {"/adb_keys",               true  /* follow symlinks */       },
+        {"/data/misc/adb/adb_keys", false /* don't follow symlinks */ },
+    };
     void IteratePublicKeys(bool (*callback)(void*, const char*, size_t), void* opaque) {
-        for (const auto& path : key_paths) {
+        for (const auto& [path, follow_symlinks] : key_paths) {
             if (access(path, R_OK) == 0) {
                 LOG(INFO) << "adbd_auth: loading keys from " << path;
                 std::string content;
-                if (!android::base::ReadFileToString(path, &content)) {
+                if (!android::base::ReadFileToString(path, &content, follow_symlinks)) {
                     PLOG(ERROR) << "adbd_auth: couldn't read " << path;
                     continue;
                 }

diff --git a/libs/arect/Android.bp b/libs/arect/Android.bp
index 319716e..cbba711 100644
--- a/libs/arect/Android.bp
+++ b/libs/arect/Android.bp

@@ -40,6 +40,7 @@
 
 cc_library_headers {
     name: "libarect_headers",
+    host_supported: true,
     vendor_available: true,
     min_sdk_version: "29",
     // TODO(b/153609531): remove when no longer needed.

diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index cdc7166..379b609 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp

@@ -87,6 +87,11 @@
 
 cc_cmake_snapshot {
     name: "binder_sdk",
+    dist: {
+        targets: ["binder_sdk"],
+        dest: "binder_sdk.zip",
+    },
+
     modules_host: [
         "libbinder_sdk",
         "libbinder_sdk_single_threaded",
@@ -450,8 +455,31 @@
     ],
 }
 
+soong_config_module_type {
+    name: "libbinder_client_cache_config",
+    module_type: "cc_defaults",
+    config_namespace: "libbinder",
+    bool_variables: ["release_libbinder_client_cache"],
+    properties: [
+        "cflags",
+    ],
+}
+
+libbinder_client_cache_config {
+    name: "libbinder_client_cache_flag",
+    soong_config_variables: {
+        release_libbinder_client_cache: {
+            cflags: ["-DLIBBINDER_CLIENT_CACHE"],
+            conditions_default: {
+                cflags: ["-DNO_LIBBINDER_CLIENT_CACHE"],
+            },
+        },
+    },
+}
+
 cc_defaults {
     name: "libbinder_kernel_defaults",
+    defaults: ["libbinder_client_cache_flag"],
     srcs: [
         "BufferedTextOutput.cpp",
         "BackendUnifiedServiceManager.cpp",
@@ -771,11 +799,41 @@
         "aidl/android/os/IClientCallback.aidl",
         "aidl/android/os/IServiceCallback.aidl",
         "aidl/android/os/IServiceManager.aidl",
+        "aidl/android/os/Service.aidl",
         "aidl/android/os/ServiceDebugInfo.aidl",
+        ":libbinder_accessor_aidl",
     ],
     path: "aidl",
 }
 
+filegroup {
+    name: "libbinder_accessor_aidl",
+    srcs: [
+        "aidl/android/os/IAccessor.aidl",
+    ],
+    path: "aidl",
+}
+
+// TODO(b/353492849): Make this interface private to libbinder.
+aidl_interface {
+    name: "android.os.accessor",
+    srcs: [":libbinder_accessor_aidl"],
+    unstable: true,
+    backend: {
+        rust: {
+            enabled: true,
+            apex_available: [
+                "com.android.virt",
+            ],
+        },
+    },
+    visibility: [
+        ":__subpackages__",
+        "//system/tools/aidl:__subpackages__",
+        "//packages/modules/Virtualization:__subpackages__",
+    ],
+}
+
 aidl_interface {
     name: "packagemanager_aidl",
     unstable: true,

diff --git a/libs/binder/BackendUnifiedServiceManager.cpp b/libs/binder/BackendUnifiedServiceManager.cpp
index b0d3048..5680798 100644
--- a/libs/binder/BackendUnifiedServiceManager.cpp
+++ b/libs/binder/BackendUnifiedServiceManager.cpp

@@ -15,28 +15,229 @@
  */
 #include "BackendUnifiedServiceManager.h"
 
+#include <android/os/IAccessor.h>
+#include <binder/RpcSession.h>
+
 #if defined(__BIONIC__) && !defined(__ANDROID_VNDK__)
 #include <android-base/properties.h>
 #endif
 
 namespace android {
 
+#ifdef LIBBINDER_CLIENT_CACHE
+constexpr bool kUseCache = true;
+#else
+constexpr bool kUseCache = false;
+#endif
+
 using AidlServiceManager = android::os::IServiceManager;
+using IAccessor = android::os::IAccessor;
+
+static const char* kStaticCachableList[] = {
+        "activity",
+        "android.hardware.thermal.IThermal/default",
+        "android.hardware.power.IPower/default",
+        "android.frameworks.stats.IStats/default",
+        "android.system.suspend.ISystemSuspend/default",
+        "appops",
+        "audio",
+        "batterystats",
+        "carrier_config",
+        "connectivity",
+        "content_capture",
+        "device_policy",
+        "display",
+        "dropbox",
+        "econtroller",
+        "isub",
+        "legacy_permission",
+        "location",
+        "media.extractor",
+        "media.metrics",
+        "media.player",
+        "media.resource_manager",
+        "netd_listener",
+        "netstats",
+        "network_management",
+        "nfc",
+        "package_native",
+        "performance_hint",
+        "permission",
+        "permissionmgr",
+        "permission_checker",
+        "phone",
+        "platform_compat",
+        "power",
+        "role",
+        "sensorservice",
+        "statscompanion",
+        "telephony.registry",
+        "thermalservice",
+        "time_detector",
+        "trust",
+        "uimode",
+        "virtualdevice",
+        "virtualdevice_native",
+        "webviewupdate",
+};
+
+bool BinderCacheWithInvalidation::isClientSideCachingEnabled(const std::string& serviceName) {
+    if (ProcessState::self()->getThreadPoolMaxTotalThreadCount() <= 0) {
+        ALOGW("Thread Pool max thread count is 0. Cannot cache binder as linkToDeath cannot be "
+              "implemented. serviceName: %s",
+              serviceName.c_str());
+        return false;
+    }
+    for (const char* name : kStaticCachableList) {
+        if (name == serviceName) {
+            return true;
+        }
+    }
+    return false;
+}
+
+binder::Status BackendUnifiedServiceManager::updateCache(const std::string& serviceName,
+                                                         const os::Service& service) {
+    if (!kUseCache) {
+        return binder::Status::ok();
+    }
+    if (service.getTag() == os::Service::Tag::binder) {
+        sp<IBinder> binder = service.get<os::Service::Tag::binder>();
+        if (binder && mCacheForGetService->isClientSideCachingEnabled(serviceName) &&
+            binder->isBinderAlive()) {
+            return mCacheForGetService->setItem(serviceName, binder);
+        }
+    }
+    return binder::Status::ok();
+}
+
+bool BackendUnifiedServiceManager::returnIfCached(const std::string& serviceName,
+                                                  os::Service* _out) {
+    if (!kUseCache) {
+        return false;
+    }
+    sp<IBinder> item = mCacheForGetService->getItem(serviceName);
+    // TODO(b/363177618): Enable caching for binders which are always null.
+    if (item != nullptr && item->isBinderAlive()) {
+        *_out = os::Service::make<os::Service::Tag::binder>(item);
+        return true;
+    }
+    return false;
+}
 
 BackendUnifiedServiceManager::BackendUnifiedServiceManager(const sp<AidlServiceManager>& impl)
-      : mTheRealServiceManager(impl) {}
+      : mTheRealServiceManager(impl) {
+    mCacheForGetService = std::make_shared<BinderCacheWithInvalidation>();
+}
 
 sp<AidlServiceManager> BackendUnifiedServiceManager::getImpl() {
     return mTheRealServiceManager;
 }
+
 binder::Status BackendUnifiedServiceManager::getService(const ::std::string& name,
                                                         sp<IBinder>* _aidl_return) {
-    return mTheRealServiceManager->getService(name, _aidl_return);
+    os::Service service;
+    binder::Status status = getService2(name, &service);
+    *_aidl_return = service.get<os::Service::Tag::binder>();
+    return status;
 }
+
+binder::Status BackendUnifiedServiceManager::getService2(const ::std::string& name,
+                                                         os::Service* _out) {
+    if (returnIfCached(name, _out)) {
+        return binder::Status::ok();
+    }
+    os::Service service;
+    binder::Status status = mTheRealServiceManager->getService2(name, &service);
+
+    if (status.isOk()) {
+        status = toBinderService(name, service, _out);
+        if (status.isOk()) {
+            return updateCache(name, service);
+        }
+    }
+    return status;
+}
+
 binder::Status BackendUnifiedServiceManager::checkService(const ::std::string& name,
-                                                          sp<IBinder>* _aidl_return) {
-    return mTheRealServiceManager->checkService(name, _aidl_return);
+                                                          os::Service* _out) {
+    os::Service service;
+    if (returnIfCached(name, _out)) {
+        return binder::Status::ok();
+    }
+
+    binder::Status status = mTheRealServiceManager->checkService(name, &service);
+    if (status.isOk()) {
+        status = toBinderService(name, service, _out);
+        if (status.isOk()) {
+            return updateCache(name, service);
+        }
+    }
+    return status;
 }
+
+binder::Status BackendUnifiedServiceManager::toBinderService(const ::std::string& name,
+                                                             const os::Service& in,
+                                                             os::Service* _out) {
+    switch (in.getTag()) {
+        case os::Service::Tag::binder: {
+            if (in.get<os::Service::Tag::binder>() == nullptr) {
+                // failed to find a service. Check to see if we have any local
+                // injected Accessors for this service.
+                os::Service accessor;
+                binder::Status status = getInjectedAccessor(name, &accessor);
+                if (!status.isOk()) {
+                    *_out = os::Service::make<os::Service::Tag::binder>(nullptr);
+                    return status;
+                }
+                if (accessor.getTag() == os::Service::Tag::accessor &&
+                    accessor.get<os::Service::Tag::accessor>() != nullptr) {
+                    ALOGI("Found local injected service for %s, will attempt to create connection",
+                          name.c_str());
+                    // Call this again using the accessor Service to get the real
+                    // service's binder into _out
+                    return toBinderService(name, accessor, _out);
+                }
+            }
+
+            *_out = in;
+            return binder::Status::ok();
+        }
+        case os::Service::Tag::accessor: {
+            sp<IBinder> accessorBinder = in.get<os::Service::Tag::accessor>();
+            sp<IAccessor> accessor = interface_cast<IAccessor>(accessorBinder);
+            if (accessor == nullptr) {
+                ALOGE("Service#accessor doesn't have accessor. VM is maybe starting...");
+                *_out = os::Service::make<os::Service::Tag::binder>(nullptr);
+                return binder::Status::ok();
+            }
+            auto request = [=] {
+                os::ParcelFileDescriptor fd;
+                binder::Status ret = accessor->addConnection(&fd);
+                if (ret.isOk()) {
+                    return base::unique_fd(fd.release());
+                } else {
+                    ALOGE("Failed to connect to RpcSession: %s", ret.toString8().c_str());
+                    return base::unique_fd(-1);
+                }
+            };
+            auto session = RpcSession::make();
+            status_t status = session->setupPreconnectedClient(base::unique_fd{}, request);
+            if (status != OK) {
+                ALOGE("Failed to set up preconnected binder RPC client: %s",
+                      statusToString(status).c_str());
+                return binder::Status::fromStatusT(status);
+            }
+            session->setSessionSpecificRoot(accessorBinder);
+            *_out = os::Service::make<os::Service::Tag::binder>(session->getRootObject());
+            return binder::Status::ok();
+        }
+        default: {
+            LOG_ALWAYS_FATAL("Unknown service type: %d", in.getTag());
+        }
+    }
+}
+
 binder::Status BackendUnifiedServiceManager::addService(const ::std::string& name,
                                                         const sp<IBinder>& service,
                                                         bool allowIsolated, int32_t dumpPriority) {
@@ -120,4 +321,4 @@
     return gUnifiedServiceManager;
 }
 
-} // namespace android
\ No newline at end of file
+} // namespace android

diff --git a/libs/binder/BackendUnifiedServiceManager.h b/libs/binder/BackendUnifiedServiceManager.h
index d72b5bb..47b2ec9 100644
--- a/libs/binder/BackendUnifiedServiceManager.h
+++ b/libs/binder/BackendUnifiedServiceManager.h

@@ -18,16 +18,95 @@
 #include <android/os/BnServiceManager.h>
 #include <android/os/IServiceManager.h>
 #include <binder/IPCThreadState.h>
+#include <map>
+#include <memory>
 
 namespace android {
 
+class BinderCacheWithInvalidation
+      : public std::enable_shared_from_this<BinderCacheWithInvalidation> {
+    class BinderInvalidation : public IBinder::DeathRecipient {
+    public:
+        BinderInvalidation(std::weak_ptr<BinderCacheWithInvalidation> cache, const std::string& key)
+              : mCache(cache), mKey(key) {}
+
+        void binderDied(const wp<IBinder>& who) override {
+            sp<IBinder> binder = who.promote();
+            if (std::shared_ptr<BinderCacheWithInvalidation> cache = mCache.lock()) {
+                cache->removeItem(mKey, binder);
+            } else {
+                ALOGI("Binder Cache pointer expired: %s", mKey.c_str());
+            }
+        }
+
+    private:
+        std::weak_ptr<BinderCacheWithInvalidation> mCache;
+        std::string mKey;
+    };
+    struct Entry {
+        sp<IBinder> service;
+        sp<BinderInvalidation> deathRecipient;
+    };
+
+public:
+    sp<IBinder> getItem(const std::string& key) const {
+        std::lock_guard<std::mutex> lock(mCacheMutex);
+
+        if (auto it = mCache.find(key); it != mCache.end()) {
+            return it->second.service;
+        }
+        return nullptr;
+    }
+
+    bool removeItem(const std::string& key, const sp<IBinder>& who) {
+        std::lock_guard<std::mutex> lock(mCacheMutex);
+        if (auto it = mCache.find(key); it != mCache.end()) {
+            if (it->second.service == who) {
+                status_t result = who->unlinkToDeath(it->second.deathRecipient);
+                if (result != DEAD_OBJECT) {
+                    ALOGW("Unlinking to dead binder resulted in: %d", result);
+                }
+                mCache.erase(key);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    binder::Status setItem(const std::string& key, const sp<IBinder>& item) {
+        sp<BinderInvalidation> deathRecipient =
+                sp<BinderInvalidation>::make(shared_from_this(), key);
+
+        // linkToDeath if binder is a remote binder.
+        if (item->localBinder() == nullptr) {
+            status_t status = item->linkToDeath(deathRecipient);
+            if (status != android::OK) {
+                ALOGE("Failed to linkToDeath binder for service %s. Error: %d", key.c_str(),
+                      status);
+                return binder::Status::fromStatusT(status);
+            }
+        }
+        std::lock_guard<std::mutex> lock(mCacheMutex);
+        Entry entry = {.service = item, .deathRecipient = deathRecipient};
+        mCache[key] = entry;
+        return binder::Status::ok();
+    }
+
+    bool isClientSideCachingEnabled(const std::string& serviceName);
+
+private:
+    std::map<std::string, Entry> mCache;
+    mutable std::mutex mCacheMutex;
+};
+
 class BackendUnifiedServiceManager : public android::os::BnServiceManager {
 public:
     explicit BackendUnifiedServiceManager(const sp<os::IServiceManager>& impl);
 
     sp<os::IServiceManager> getImpl();
     binder::Status getService(const ::std::string& name, sp<IBinder>* _aidl_return) override;
-    binder::Status checkService(const ::std::string& name, sp<IBinder>* _aidl_return) override;
+    binder::Status getService2(const ::std::string& name, os::Service* out) override;
+    binder::Status checkService(const ::std::string& name, os::Service* out) override;
     binder::Status addService(const ::std::string& name, const sp<IBinder>& service,
                               bool allowIsolated, int32_t dumpPriority) override;
     binder::Status listServices(int32_t dumpPriority,
@@ -56,12 +135,17 @@
         return mTheRealServiceManager->getInterfaceDescriptor();
     }
 
-    IBinder* onAsBinder() override { return IInterface::asBinder(mTheRealServiceManager).get(); }
-
 private:
+    std::shared_ptr<BinderCacheWithInvalidation> mCacheForGetService;
     sp<os::IServiceManager> mTheRealServiceManager;
+    binder::Status toBinderService(const ::std::string& name, const os::Service& in,
+                                   os::Service* _out);
+    binder::Status updateCache(const std::string& serviceName, const os::Service& service);
+    bool returnIfCached(const std::string& serviceName, os::Service* _out);
 };
 
 sp<BackendUnifiedServiceManager> getBackendUnifiedServiceManager();
 
-} // namespace android
\ No newline at end of file
+android::binder::Status getInjectedAccessor(const std::string& name, android::os::Service* service);
+
+} // namespace android

diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index c57c9cd..53bd08d 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp

@@ -143,6 +143,22 @@
     return reply.readNullableStrongBinder(out);
 }
 
+status_t IBinder::addFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>& callback) {
+    BpBinder* proxy = this->remoteBinder();
+    if (proxy != nullptr) {
+        return proxy->addFrozenStateChangeCallback(callback);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t IBinder::removeFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>& callback) {
+    BpBinder* proxy = this->remoteBinder();
+    if (proxy != nullptr) {
+        return proxy->removeFrozenStateChangeCallback(callback);
+    }
+    return INVALID_OPERATION;
+}
+
 status_t IBinder::getDebugPid(pid_t* out) {
     BBinder* local = this->localBinder();
     if (local != nullptr) {

diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index 6594aa6..eae844c 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp

@@ -160,11 +160,12 @@
 
 // ---------------------------------------------------------------------------
 
-sp<BpBinder> BpBinder::create(int32_t handle) {
+sp<BpBinder> BpBinder::create(int32_t handle, std::function<void()>* postTask) {
     if constexpr (!kEnableKernelIpc) {
         LOG_ALWAYS_FATAL("Binder kernel driver disabled at build time");
         return nullptr;
     }
+    LOG_ALWAYS_FATAL_IF(postTask == nullptr, "BAD STATE");
 
     int32_t trackedUid = -1;
     if (sCountByUidEnabled) {
@@ -183,7 +184,11 @@
                 ALOGE("Still too many binder proxy objects sent to uid %d from uid %d (%d proxies "
                       "held)",
                       getuid(), trackedUid, trackedValue);
-                if (sLimitCallback) sLimitCallback(trackedUid);
+
+                if (sLimitCallback) {
+                    *postTask = [=]() { sLimitCallback(trackedUid); };
+                }
+
                 sLastLimitCallbackMap[trackedUid] = trackedValue;
             }
         } else {
@@ -197,7 +202,11 @@
                 ALOGE("Too many binder proxy objects sent to uid %d from uid %d (%d proxies held)",
                       getuid(), trackedUid, trackedValue);
                 sTrackingMap[trackedUid] |= LIMIT_REACHED_MASK;
-                if (sLimitCallback) sLimitCallback(trackedUid);
+
+                if (sLimitCallback) {
+                    *postTask = [=]() { sLimitCallback(trackedUid); };
+                }
+
                 sLastLimitCallbackMap[trackedUid] = trackedValue & COUNTING_VALUE_MASK;
                 if (sBinderProxyThrottleCreate) {
                     ALOGI("Throttling binder proxy creates from uid %d in uid %d until binder proxy"
@@ -557,6 +566,123 @@
     }
 }
 
+status_t BpBinder::addFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>& callback) {
+    LOG_ALWAYS_FATAL_IF(isRpcBinder(),
+                        "addFrozenStateChangeCallback() is not supported for RPC Binder.");
+    LOG_ALWAYS_FATAL_IF(!kEnableKernelIpc, "Binder kernel driver disabled at build time");
+    LOG_ALWAYS_FATAL_IF(ProcessState::self()->getThreadPoolMaxTotalThreadCount() == 0,
+                        "addFrozenStateChangeCallback on %s but there are no threads "
+                        "(yet?) listening to incoming transactions. See "
+                        "ProcessState::startThreadPool "
+                        "and ProcessState::setThreadPoolMaxThreadCount. Generally you should "
+                        "setup the binder threadpool before other initialization steps.",
+                        String8(getInterfaceDescriptor()).c_str());
+    LOG_ALWAYS_FATAL_IF(callback == nullptr,
+                        "addFrozenStateChangeCallback(): callback must be non-NULL");
+
+    const sp<FrozenStateChangeCallback> strongCallback = callback.promote();
+    if (strongCallback == nullptr) {
+        return BAD_VALUE;
+    }
+
+    {
+        RpcMutexUniqueLock _l(mLock);
+        if (!mFrozen) {
+            ALOGV("Requesting freeze notification: %p handle %d\n", this, binderHandle());
+            IPCThreadState* self = IPCThreadState::self();
+            status_t status = self->addFrozenStateChangeCallback(binderHandle(), this);
+            if (status != NO_ERROR) {
+                // Avoids logspam if kernel does not support freeze
+                // notification.
+                if (status != INVALID_OPERATION) {
+                    ALOGE("IPCThreadState.addFrozenStateChangeCallback "
+                          "failed with %s. %p handle %d\n",
+                          statusToString(status).c_str(), this, binderHandle());
+                }
+                return status;
+            }
+            mFrozen = std::make_unique<FrozenStateChange>();
+            if (!mFrozen) {
+                std::ignore =
+                        IPCThreadState::self()->removeFrozenStateChangeCallback(binderHandle(),
+                                                                                this);
+                return NO_MEMORY;
+            }
+        }
+        if (mFrozen->initialStateReceived) {
+            strongCallback->onStateChanged(wp<BpBinder>::fromExisting(this),
+                                           mFrozen->isFrozen
+                                                   ? FrozenStateChangeCallback::State::FROZEN
+                                                   : FrozenStateChangeCallback::State::UNFROZEN);
+        }
+        ssize_t res = mFrozen->callbacks.add(callback);
+        if (res < 0) {
+            return res;
+        }
+        return NO_ERROR;
+    }
+}
+
+status_t BpBinder::removeFrozenStateChangeCallback(const wp<FrozenStateChangeCallback>& callback) {
+    LOG_ALWAYS_FATAL_IF(isRpcBinder(),
+                        "removeFrozenStateChangeCallback() is not supported for RPC Binder.");
+    LOG_ALWAYS_FATAL_IF(!kEnableKernelIpc, "Binder kernel driver disabled at build time");
+
+    RpcMutexUniqueLock _l(mLock);
+
+    const size_t N = mFrozen ? mFrozen->callbacks.size() : 0;
+    for (size_t i = 0; i < N; i++) {
+        if (mFrozen->callbacks.itemAt(i) == callback) {
+            mFrozen->callbacks.removeAt(i);
+            if (mFrozen->callbacks.size() == 0) {
+                ALOGV("Clearing freeze notification: %p handle %d\n", this, binderHandle());
+                status_t status =
+                        IPCThreadState::self()->removeFrozenStateChangeCallback(binderHandle(),
+                                                                                this);
+                if (status != NO_ERROR) {
+                    ALOGE("Unexpected error from "
+                          "IPCThreadState.removeFrozenStateChangeCallback: %s. "
+                          "%p handle %d\n",
+                          statusToString(status).c_str(), this, binderHandle());
+                }
+                mFrozen.reset();
+            }
+            return NO_ERROR;
+        }
+    }
+
+    return NAME_NOT_FOUND;
+}
+
+void BpBinder::onFrozenStateChanged(bool isFrozen) {
+    LOG_ALWAYS_FATAL_IF(isRpcBinder(), "onFrozenStateChanged is not supported for RPC Binder.");
+    LOG_ALWAYS_FATAL_IF(!kEnableKernelIpc, "Binder kernel driver disabled at build time");
+
+    ALOGV("Sending frozen state change notification for proxy %p handle %d, isFrozen=%s\n", this,
+          binderHandle(), isFrozen ? "true" : "false");
+
+    RpcMutexUniqueLock _l(mLock);
+    if (!mFrozen) {
+        return;
+    }
+    bool stateChanged = !mFrozen->initialStateReceived || mFrozen->isFrozen != isFrozen;
+    if (stateChanged) {
+        mFrozen->isFrozen = isFrozen;
+        mFrozen->initialStateReceived = true;
+        for (size_t i = 0; i < mFrozen->callbacks.size();) {
+            sp<FrozenStateChangeCallback> callback = mFrozen->callbacks.itemAt(i).promote();
+            if (callback != nullptr) {
+                callback->onStateChanged(wp<BpBinder>::fromExisting(this),
+                                         isFrozen ? FrozenStateChangeCallback::State::FROZEN
+                                                  : FrozenStateChangeCallback::State::UNFROZEN);
+                i++;
+            } else {
+                mFrozen->callbacks.removeItemsAt(i);
+            }
+        }
+    }
+}
+
 void BpBinder::reportOneDeath(const Obituary& obit)
 {
     sp<DeathRecipient> recipient = obit.recipient.promote();
@@ -686,6 +812,10 @@
         if (ipc) ipc->clearDeathNotification(binderHandle(), this);
         mObituaries = nullptr;
     }
+    if (mFrozen != nullptr) {
+        std::ignore = IPCThreadState::self()->removeFrozenStateChangeCallback(binderHandle(), this);
+        mFrozen.reset();
+    }
     mLock.unlock();
 
     if (obits != nullptr) {

diff --git a/libs/binder/FdTrigger.cpp b/libs/binder/FdTrigger.cpp
index 455a433..7263e23 100644
--- a/libs/binder/FdTrigger.cpp
+++ b/libs/binder/FdTrigger.cpp

@@ -82,7 +82,9 @@
 
     int ret = TEMP_FAILURE_RETRY(poll(pfd, countof(pfd), -1));
     if (ret < 0) {
-        return -errno;
+        int saved_errno = errno;
+        ALOGE("FdTrigger poll returned error: %d, with error: %s", ret, strerror(saved_errno));
+        return -saved_errno;
     }
     LOG_ALWAYS_FATAL_IF(ret == 0, "poll(%d) returns 0 with infinite timeout", transportFd.fd.get());
 
@@ -106,6 +108,7 @@
 
     // POLLNVAL: invalid FD number, e.g. not opened.
     if (pfd[0].revents & POLLNVAL) {
+        LOG_ALWAYS_FATAL("Invalid FD number (%d) in FdTrigger (POLLNVAL)", pfd[0].fd);
         return BAD_VALUE;
     }
 

diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 984c93d..6698d0c 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp

@@ -89,26 +89,33 @@
         "BR_FROZEN_REPLY",
         "BR_ONEWAY_SPAM_SUSPECT",
         "BR_TRANSACTION_PENDING_FROZEN",
+        "BR_FROZEN_BINDER",
+        "BR_CLEAR_FREEZE_NOTIFICATION_DONE",
 };
 
-static const char *kCommandStrings[] = {
-    "BC_TRANSACTION",
-    "BC_REPLY",
-    "BC_ACQUIRE_RESULT",
-    "BC_FREE_BUFFER",
-    "BC_INCREFS",
-    "BC_ACQUIRE",
-    "BC_RELEASE",
-    "BC_DECREFS",
-    "BC_INCREFS_DONE",
-    "BC_ACQUIRE_DONE",
-    "BC_ATTEMPT_ACQUIRE",
-    "BC_REGISTER_LOOPER",
-    "BC_ENTER_LOOPER",
-    "BC_EXIT_LOOPER",
-    "BC_REQUEST_DEATH_NOTIFICATION",
-    "BC_CLEAR_DEATH_NOTIFICATION",
-    "BC_DEAD_BINDER_DONE"
+static const char* kCommandStrings[] = {
+        "BC_TRANSACTION",
+        "BC_REPLY",
+        "BC_ACQUIRE_RESULT",
+        "BC_FREE_BUFFER",
+        "BC_INCREFS",
+        "BC_ACQUIRE",
+        "BC_RELEASE",
+        "BC_DECREFS",
+        "BC_INCREFS_DONE",
+        "BC_ACQUIRE_DONE",
+        "BC_ATTEMPT_ACQUIRE",
+        "BC_REGISTER_LOOPER",
+        "BC_ENTER_LOOPER",
+        "BC_EXIT_LOOPER",
+        "BC_REQUEST_DEATH_NOTIFICATION",
+        "BC_CLEAR_DEATH_NOTIFICATION",
+        "BC_DEAD_BINDER_DONE",
+        "BC_TRANSACTION_SG",
+        "BC_REPLY_SG",
+        "BC_REQUEST_FREEZE_NOTIFICATION",
+        "BC_CLEAR_FREEZE_NOTIFICATION",
+        "BC_FREEZE_NOTIFICATION_DONE",
 };
 
 static const int64_t kWorkSourcePropagatedBitIndex = 32;
@@ -203,6 +210,18 @@
             out << ": death cookie " << (void*)(uint64_t)c;
         } break;
 
+        case BR_FROZEN_BINDER: {
+            const int32_t c = *cmd++;
+            const int32_t h = *cmd++;
+            const int32_t isFrozen = *cmd++;
+            out << ": freeze cookie " << (void*)(uint64_t)c << " isFrozen: " << isFrozen;
+        } break;
+
+        case BR_CLEAR_FREEZE_NOTIFICATION_DONE: {
+            const int32_t c = *cmd++;
+            out << ": freeze cookie " << (void*)(uint64_t)c;
+        } break;
+
         default:
             // no details to show for: BR_OK, BR_DEAD_REPLY,
             // BR_TRANSACTION_COMPLETE, BR_FINISHED
@@ -213,6 +232,15 @@
     return cmd;
 }
 
+static void printReturnCommandParcel(std::ostream& out, const Parcel& parcel) {
+    const void* cmds = parcel.data();
+    out << "\t" << HexDump(cmds, parcel.dataSize()) << "\n";
+    IF_LOG_COMMANDS() {
+        const void* end = parcel.data() + parcel.dataSize();
+        while (cmds < end) cmds = printReturnCommand(out, cmds);
+    }
+}
+
 static const void* printCommand(std::ostream& out, const void* _cmd) {
     static const size_t N = sizeof(kCommandStrings)/sizeof(kCommandStrings[0]);
     const int32_t* cmd = (const int32_t*)_cmd;
@@ -270,11 +298,23 @@
             out << ": handle=" << h << " (death cookie " << (void*)(uint64_t)c << ")";
         } break;
 
+        case BC_REQUEST_FREEZE_NOTIFICATION:
+        case BC_CLEAR_FREEZE_NOTIFICATION: {
+            const int32_t h = *cmd++;
+            const int32_t c = *cmd++;
+            out << ": handle=" << h << " (freeze cookie " << (void*)(uint64_t)c << ")";
+        } break;
+
         case BC_DEAD_BINDER_DONE: {
             const int32_t c = *cmd++;
             out << ": death cookie " << (void*)(uint64_t)c;
         } break;
 
+        case BC_FREEZE_NOTIFICATION_DONE: {
+            const int32_t c = *cmd++;
+            out << ": freeze cookie " << (void*)(uint64_t)c;
+        } break;
+
         default:
             // no details to show for: BC_REGISTER_LOOPER, BC_ENTER_LOOPER,
             // BC_EXIT_LOOPER
@@ -953,6 +993,33 @@
     return NO_ERROR;
 }
 
+status_t IPCThreadState::addFrozenStateChangeCallback(int32_t handle, BpBinder* proxy) {
+    static bool isSupported =
+            ProcessState::isDriverFeatureEnabled(ProcessState::DriverFeature::FREEZE_NOTIFICATION);
+    if (!isSupported) {
+        return INVALID_OPERATION;
+    }
+    proxy->getWeakRefs()->incWeak(proxy);
+    mOut.writeInt32(BC_REQUEST_FREEZE_NOTIFICATION);
+    mOut.writeInt32((int32_t)handle);
+    mOut.writePointer((uintptr_t)proxy);
+    flushCommands();
+    return NO_ERROR;
+}
+
+status_t IPCThreadState::removeFrozenStateChangeCallback(int32_t handle, BpBinder* proxy) {
+    static bool isSupported =
+            ProcessState::isDriverFeatureEnabled(ProcessState::DriverFeature::FREEZE_NOTIFICATION);
+    if (!isSupported) {
+        return INVALID_OPERATION;
+    }
+    mOut.writeInt32(BC_CLEAR_FREEZE_NOTIFICATION);
+    mOut.writeInt32((int32_t)handle);
+    mOut.writePointer((uintptr_t)proxy);
+    flushCommands();
+    return NO_ERROR;
+}
+
 IPCThreadState::IPCThreadState()
       : mProcess(ProcessState::self()),
         mServingStackPointer(nullptr),
@@ -1177,13 +1244,15 @@
 
     if (err >= NO_ERROR) {
         if (bwr.write_consumed > 0) {
-            if (bwr.write_consumed < mOut.dataSize())
+            if (bwr.write_consumed < mOut.dataSize()) {
+                std::ostringstream logStream;
+                printReturnCommandParcel(logStream, mIn);
                 LOG_ALWAYS_FATAL("Driver did not consume write buffer. "
-                                 "err: %s consumed: %zu of %zu",
-                                 statusToString(err).c_str(),
-                                 (size_t)bwr.write_consumed,
-                                 mOut.dataSize());
-            else {
+                                 "err: %s consumed: %zu of %zu.\n"
+                                 "Return command: %s",
+                                 statusToString(err).c_str(), (size_t)bwr.write_consumed,
+                                 mOut.dataSize(), logStream.str().c_str());
+            } else {
                 mOut.setDataSize(0);
                 processPostWriteDerefs();
             }
@@ -1194,14 +1263,8 @@
         }
         IF_LOG_COMMANDS() {
             std::ostringstream logStream;
-            logStream << "Remaining data size: " << mOut.dataSize() << "\n";
-            logStream << "Received commands from driver: ";
-            const void* cmds = mIn.data();
-            const void* end = mIn.data() + mIn.dataSize();
-            logStream << "\t" << HexDump(cmds, mIn.dataSize()) << "\n";
-            while (cmds < end) cmds = printReturnCommand(logStream, cmds);
-            std::string message = logStream.str();
-            ALOGI("%s", message.c_str());
+            printReturnCommandParcel(logStream, mIn);
+            ALOGI("%s", logStream.str().c_str());
         }
         return NO_ERROR;
     }
@@ -1487,6 +1550,26 @@
             proxy->getWeakRefs()->decWeak(proxy);
         } break;
 
+        case BR_FROZEN_BINDER: {
+            const struct binder_frozen_state_info* data =
+                    reinterpret_cast<const struct binder_frozen_state_info*>(
+                            mIn.readInplace(sizeof(struct binder_frozen_state_info)));
+            if (data == nullptr) {
+                result = UNKNOWN_ERROR;
+                break;
+            }
+            BpBinder* proxy = (BpBinder*)data->cookie;
+            bool isFrozen = mIn.readInt32() > 0;
+            proxy->getPrivateAccessor().onFrozenStateChanged(data->is_frozen);
+            mOut.writeInt32(BC_FREEZE_NOTIFICATION_DONE);
+            mOut.writePointer(data->cookie);
+        } break;
+
+        case BR_CLEAR_FREEZE_NOTIFICATION_DONE: {
+            BpBinder* proxy = (BpBinder*)mIn.readPointer();
+            proxy->getWeakRefs()->decWeak(proxy);
+        } break;
+
     case BR_FINISHED:
         result = TIMED_OUT;
         break;

diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 17e522d..88761d7 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp

@@ -14,9 +14,11 @@
  * limitations under the License.
  */
 
+#include <sys/socket.h>
 #define LOG_TAG "ServiceManagerCppClient"
 
 #include <binder/IServiceManager.h>
+#include <binder/IServiceManagerUnitTestHelper.h>
 #include "BackendUnifiedServiceManager.h"
 
 #include <inttypes.h>
@@ -24,13 +26,19 @@
 #include <chrono>
 #include <condition_variable>
 
+#include <FdTrigger.h>
+#include <RpcSocketAddress.h>
 #include <android-base/properties.h>
+#include <android/os/BnAccessor.h>
 #include <android/os/BnServiceCallback.h>
+#include <android/os/BnServiceManager.h>
+#include <android/os/IAccessor.h>
 #include <android/os/IServiceManager.h>
 #include <binder/IPCThreadState.h>
 #include <binder/Parcel.h>
+#include <binder/RpcSession.h>
 #include <utils/String8.h>
-
+#include <variant>
 #ifndef __ANDROID_VNDK__
 #include <binder/IPermissionController.h>
 #endif
@@ -57,6 +65,8 @@
 
 using AidlServiceManager = android::os::IServiceManager;
 using android::binder::Status;
+using android::os::IAccessor;
+using android::os::Service;
 
 // libbinder's IServiceManager.h can't rely on the values generated by AIDL
 // because many places use its headers via include_dirs (meaning, without
@@ -76,10 +86,9 @@
 IServiceManager::~IServiceManager() {}
 
 // From the old libbinder IServiceManager interface to IServiceManager.
-class ServiceManagerShim : public IServiceManager
-{
+class CppBackendShim : public IServiceManager {
 public:
-    explicit ServiceManagerShim (const sp<AidlServiceManager>& impl);
+    explicit CppBackendShim(const sp<BackendUnifiedServiceManager>& impl);
 
     sp<IBinder> getService(const String16& name) const override;
     sp<IBinder> checkService(const String16& name) const override;
@@ -133,23 +142,160 @@
                                           sp<RegistrationWaiter>* waiter);
 
     // Directly get the service in a way that, for lazy services, requests the service to be started
-    // if it is not currently started. This way, calls directly to ServiceManagerShim::getService
+    // if it is not currently started. This way, calls directly to CppBackendShim::getService
     // will still have the 5s delay that is expected by a large amount of Android code.
     //
-    // When implementing ServiceManagerShim, use realGetService instead of
-    // mUnifiedServiceManager->getService so that it can be overridden in ServiceManagerHostShim.
+    // When implementing CppBackendShim, use realGetService instead of
+    // mUnifiedServiceManager->getService so that it can be overridden in CppServiceManagerHostShim.
     virtual Status realGetService(const std::string& name, sp<IBinder>* _aidl_return) {
-        return mUnifiedServiceManager->getService(name, _aidl_return);
+        Service service;
+        Status status = mUnifiedServiceManager->getService2(name, &service);
+        *_aidl_return = service.get<Service::Tag::binder>();
+        return status;
     }
 };
 
+class AccessorProvider {
+public:
+    AccessorProvider(RpcAccessorProvider&& provider) : mProvider(std::move(provider)) {}
+    sp<IBinder> provide(const String16& name) { return mProvider(name); }
+
+private:
+    AccessorProvider() = delete;
+
+    RpcAccessorProvider mProvider;
+};
+
+class AccessorProviderEntry {
+public:
+    AccessorProviderEntry(std::shared_ptr<AccessorProvider>&& provider)
+          : mProvider(std::move(provider)) {}
+    std::shared_ptr<AccessorProvider> mProvider;
+
+private:
+    AccessorProviderEntry() = delete;
+};
+
 [[clang::no_destroy]] static std::once_flag gSmOnce;
 [[clang::no_destroy]] static sp<IServiceManager> gDefaultServiceManager;
+[[clang::no_destroy]] static std::mutex gAccessorProvidersMutex;
+[[clang::no_destroy]] static std::vector<AccessorProviderEntry> gAccessorProviders;
+
+class LocalAccessor : public android::os::BnAccessor {
+public:
+    LocalAccessor(const String16& instance, RpcSocketAddressProvider&& connectionInfoProvider)
+          : mInstance(instance), mConnectionInfoProvider(std::move(connectionInfoProvider)) {
+        LOG_ALWAYS_FATAL_IF(!mConnectionInfoProvider,
+                            "LocalAccessor object needs a valid connection info provider");
+    }
+
+    ~LocalAccessor() {
+        if (mOnDelete) mOnDelete();
+    }
+
+    ::android::binder::Status addConnection(::android::os::ParcelFileDescriptor* outFd) {
+        using android::os::IAccessor;
+        sockaddr_storage addrStorage;
+        std::unique_ptr<FdTrigger> trigger = FdTrigger::make();
+        RpcTransportFd fd;
+        status_t status =
+                mConnectionInfoProvider(mInstance, reinterpret_cast<sockaddr*>(&addrStorage),
+                                        sizeof(addrStorage));
+        if (status != OK) {
+            const std::string error = "The connection info provider was unable to provide "
+                                      "connection info for instance " +
+                    std::string(String8(mInstance).c_str()) +
+                    " with status: " + statusToString(status);
+            ALOGE("%s", error.c_str());
+            return Status::fromServiceSpecificError(IAccessor::ERROR_CONNECTION_INFO_NOT_FOUND,
+                                                    error.c_str());
+        }
+        if (addrStorage.ss_family == AF_VSOCK) {
+            sockaddr_vm* addr = reinterpret_cast<sockaddr_vm*>(&addrStorage);
+            status = singleSocketConnection(VsockSocketAddress(addr->svm_cid, addr->svm_port),
+                                            trigger, &fd);
+        } else if (addrStorage.ss_family == AF_UNIX) {
+            sockaddr_un* addr = reinterpret_cast<sockaddr_un*>(&addrStorage);
+            status = singleSocketConnection(UnixSocketAddress(addr->sun_path), trigger, &fd);
+        } else if (addrStorage.ss_family == AF_INET) {
+            sockaddr_in* addr = reinterpret_cast<sockaddr_in*>(&addrStorage);
+            status = singleSocketConnection(InetSocketAddress(reinterpret_cast<sockaddr*>(addr),
+                                                              sizeof(sockaddr_in),
+                                                              inet_ntoa(addr->sin_addr),
+                                                              ntohs(addr->sin_port)),
+                                            trigger, &fd);
+        } else {
+            const std::string error =
+                    "Unsupported socket family type or the ConnectionInfoProvider failed to find a "
+                    "valid address. Family type: " +
+                    std::to_string(addrStorage.ss_family);
+            ALOGE("%s", error.c_str());
+            return Status::fromServiceSpecificError(IAccessor::ERROR_UNSUPPORTED_SOCKET_FAMILY,
+                                                    error.c_str());
+        }
+        if (status != OK) {
+            const std::string error = "Failed to connect to socket for " +
+                    std::string(String8(mInstance).c_str()) +
+                    " with status: " + statusToString(status);
+            ALOGE("%s", error.c_str());
+            int err = 0;
+            if (status == -EACCES) {
+                err = IAccessor::ERROR_FAILED_TO_CONNECT_EACCES;
+            } else {
+                err = IAccessor::ERROR_FAILED_TO_CONNECT_TO_SOCKET;
+            }
+            return Status::fromServiceSpecificError(err, error.c_str());
+        }
+        *outFd = os::ParcelFileDescriptor(std::move(fd.fd));
+        return Status::ok();
+    }
+
+    ::android::binder::Status getInstanceName(String16* instance) {
+        *instance = mInstance;
+        return Status::ok();
+    }
+
+private:
+    LocalAccessor() = delete;
+    String16 mInstance;
+    RpcSocketAddressProvider mConnectionInfoProvider;
+    std::function<void()> mOnDelete;
+};
+
+android::binder::Status getInjectedAccessor(const std::string& name,
+                                            android::os::Service* service) {
+    std::vector<AccessorProviderEntry> copiedProviders;
+    {
+        std::lock_guard<std::mutex> lock(gAccessorProvidersMutex);
+        copiedProviders.insert(copiedProviders.begin(), gAccessorProviders.begin(),
+                               gAccessorProviders.end());
+    }
+
+    // Unlocked to call the providers. This requires the providers to be
+    // threadsafe and not contain any references to objects that could be
+    // deleted.
+    for (const auto& provider : copiedProviders) {
+        sp<IBinder> binder = provider.mProvider->provide(String16(name.c_str()));
+        if (binder == nullptr) continue;
+        status_t status = validateAccessor(String16(name.c_str()), binder);
+        if (status != OK) {
+            ALOGE("A provider returned a binder that is not an IAccessor for instance %s. Status: "
+                  "%s",
+                  name.c_str(), statusToString(status).c_str());
+            return android::binder::Status::fromStatusT(android::INVALID_OPERATION);
+        }
+        *service = os::Service::make<os::Service::Tag::accessor>(binder);
+        return android::binder::Status::ok();
+    }
+
+    *service = os::Service::make<os::Service::Tag::accessor>(nullptr);
+    return android::binder::Status::ok();
+}
 
 sp<IServiceManager> defaultServiceManager()
 {
     std::call_once(gSmOnce, []() {
-        gDefaultServiceManager = sp<ServiceManagerShim>::make(getBackendUnifiedServiceManager());
+        gDefaultServiceManager = sp<CppBackendShim>::make(getBackendUnifiedServiceManager());
     });
 
     return gDefaultServiceManager;
@@ -167,6 +313,81 @@
     }
 }
 
+sp<IServiceManager> getServiceManagerShimFromAidlServiceManagerForTests(
+        const sp<AidlServiceManager>& sm) {
+    return sp<CppBackendShim>::make(sp<BackendUnifiedServiceManager>::make(sm));
+}
+
+std::weak_ptr<AccessorProvider> addAccessorProvider(RpcAccessorProvider&& providerCallback) {
+    std::lock_guard<std::mutex> lock(gAccessorProvidersMutex);
+    std::shared_ptr<AccessorProvider> provider =
+            std::make_shared<AccessorProvider>(std::move(providerCallback));
+    std::weak_ptr<AccessorProvider> receipt = provider;
+    gAccessorProviders.push_back(AccessorProviderEntry(std::move(provider)));
+
+    return receipt;
+}
+
+status_t removeAccessorProvider(std::weak_ptr<AccessorProvider> wProvider) {
+    std::shared_ptr<AccessorProvider> provider = wProvider.lock();
+    if (provider == nullptr) {
+        ALOGE("The provider supplied to removeAccessorProvider has already been removed.");
+        return NAME_NOT_FOUND;
+    }
+    std::lock_guard<std::mutex> lock(gAccessorProvidersMutex);
+    size_t sizeBefore = gAccessorProviders.size();
+    gAccessorProviders.erase(std::remove_if(gAccessorProviders.begin(), gAccessorProviders.end(),
+                                            [&](AccessorProviderEntry entry) {
+                                                return entry.mProvider == provider;
+                                            }),
+                             gAccessorProviders.end());
+    if (sizeBefore == gAccessorProviders.size()) {
+        ALOGE("Failed to find an AccessorProvider for removeAccessorProvider");
+        return NAME_NOT_FOUND;
+    }
+
+    return OK;
+}
+
+status_t validateAccessor(const String16& instance, const sp<IBinder>& binder) {
+    if (binder == nullptr) {
+        ALOGE("Binder is null");
+        return BAD_VALUE;
+    }
+    sp<IAccessor> accessor = interface_cast<IAccessor>(binder);
+    if (accessor == nullptr) {
+        ALOGE("This binder for %s is not an IAccessor binder", String8(instance).c_str());
+        return BAD_TYPE;
+    }
+    String16 reportedInstance;
+    Status status = accessor->getInstanceName(&reportedInstance);
+    if (!status.isOk()) {
+        ALOGE("Failed to validate the binder being used to create a new ARpc_Accessor for %s with "
+              "status: %s",
+              String8(instance).c_str(), status.toString8().c_str());
+        return NAME_NOT_FOUND;
+    }
+    if (reportedInstance != instance) {
+        ALOGE("Instance %s doesn't match the Accessor's instance of %s", String8(instance).c_str(),
+              String8(reportedInstance).c_str());
+        return NAME_NOT_FOUND;
+    }
+    return OK;
+}
+
+sp<IBinder> createAccessor(const String16& instance,
+                           RpcSocketAddressProvider&& connectionInfoProvider) {
+    // Try to create a new accessor
+    if (!connectionInfoProvider) {
+        ALOGE("Could not find an Accessor for %s and no ConnectionInfoProvider provided to "
+              "create a new one",
+              String8(instance).c_str());
+        return nullptr;
+    }
+    sp<IBinder> binder = sp<LocalAccessor>::make(instance, std::move(connectionInfoProvider));
+    return binder;
+}
+
 #if !defined(__ANDROID_VNDK__)
 // IPermissionController is not accessible to vendors
 
@@ -247,8 +468,11 @@
     }
 }
 
+#endif //__ANDROID_VNDK__
+
 void* openDeclaredPassthroughHal(const String16& interface, const String16& instance, int flag) {
-#if defined(__ANDROID__) && !defined(__ANDROID_RECOVERY__) && !defined(__ANDROID_NATIVE_BRIDGE__)
+#if defined(__ANDROID__) && !defined(__ANDROID_VENDOR__) && !defined(__ANDROID_RECOVERY__) && \
+        !defined(__ANDROID_NATIVE_BRIDGE__)
     sp<IServiceManager> sm = defaultServiceManager();
     String16 name = interface + String16("/") + instance;
     if (!sm->isDeclared(name)) {
@@ -268,20 +492,16 @@
 #endif
 }
 
-#endif //__ANDROID_VNDK__
-
 // ----------------------------------------------------------------------
 
-ServiceManagerShim::ServiceManagerShim(const sp<AidlServiceManager>& impl) {
-    mUnifiedServiceManager = sp<BackendUnifiedServiceManager>::make(impl);
-}
+CppBackendShim::CppBackendShim(const sp<BackendUnifiedServiceManager>& impl)
+      : mUnifiedServiceManager(impl) {}
 
 // This implementation could be simplified and made more efficient by delegating
 // to waitForService. However, this changes the threading structure in some
 // cases and could potentially break prebuilts. Once we have higher logistical
 // complexity, this could be attempted.
-sp<IBinder> ServiceManagerShim::getService(const String16& name) const
-{
+sp<IBinder> CppBackendShim::getService(const String16& name) const {
     static bool gSystemBootCompleted = false;
 
     sp<IBinder> svc = checkService(name);
@@ -325,25 +545,22 @@
     return nullptr;
 }
 
-sp<IBinder> ServiceManagerShim::checkService(const String16& name) const
-{
-    sp<IBinder> ret;
+sp<IBinder> CppBackendShim::checkService(const String16& name) const {
+    Service ret;
     if (!mUnifiedServiceManager->checkService(String8(name).c_str(), &ret).isOk()) {
         return nullptr;
     }
-    return ret;
+    return ret.get<Service::Tag::binder>();
 }
 
-status_t ServiceManagerShim::addService(const String16& name, const sp<IBinder>& service,
-                                        bool allowIsolated, int dumpsysPriority)
-{
+status_t CppBackendShim::addService(const String16& name, const sp<IBinder>& service,
+                                    bool allowIsolated, int dumpsysPriority) {
     Status status = mUnifiedServiceManager->addService(String8(name).c_str(), service,
                                                        allowIsolated, dumpsysPriority);
     return status.exceptionCode();
 }
 
-Vector<String16> ServiceManagerShim::listServices(int dumpsysPriority)
-{
+Vector<String16> CppBackendShim::listServices(int dumpsysPriority) {
     std::vector<std::string> ret;
     if (!mUnifiedServiceManager->listServices(dumpsysPriority, &ret).isOk()) {
         return {};
@@ -357,8 +574,7 @@
     return res;
 }
 
-sp<IBinder> ServiceManagerShim::waitForService(const String16& name16)
-{
+sp<IBinder> CppBackendShim::waitForService(const String16& name16) {
     class Waiter : public android::os::BnServiceCallback {
         Status onRegistration(const std::string& /*name*/,
                               const sp<IBinder>& binder) override {
@@ -447,7 +663,7 @@
     }
 }
 
-bool ServiceManagerShim::isDeclared(const String16& name) {
+bool CppBackendShim::isDeclared(const String16& name) {
     bool declared;
     if (Status status = mUnifiedServiceManager->isDeclared(String8(name).c_str(), &declared);
         !status.isOk()) {
@@ -458,7 +674,7 @@
     return declared;
 }
 
-Vector<String16> ServiceManagerShim::getDeclaredInstances(const String16& interface) {
+Vector<String16> CppBackendShim::getDeclaredInstances(const String16& interface) {
     std::vector<std::string> out;
     if (Status status =
                 mUnifiedServiceManager->getDeclaredInstances(String8(interface).c_str(), &out);
@@ -476,7 +692,7 @@
     return res;
 }
 
-std::optional<String16> ServiceManagerShim::updatableViaApex(const String16& name) {
+std::optional<String16> CppBackendShim::updatableViaApex(const String16& name) {
     std::optional<std::string> declared;
     if (Status status = mUnifiedServiceManager->updatableViaApex(String8(name).c_str(), &declared);
         !status.isOk()) {
@@ -487,7 +703,7 @@
     return declared ? std::optional<String16>(String16(declared.value().c_str())) : std::nullopt;
 }
 
-Vector<String16> ServiceManagerShim::getUpdatableNames(const String16& apexName) {
+Vector<String16> CppBackendShim::getUpdatableNames(const String16& apexName) {
     std::vector<std::string> out;
     if (Status status = mUnifiedServiceManager->getUpdatableNames(String8(apexName).c_str(), &out);
         !status.isOk()) {
@@ -504,7 +720,7 @@
     return res;
 }
 
-std::optional<IServiceManager::ConnectionInfo> ServiceManagerShim::getConnectionInfo(
+std::optional<IServiceManager::ConnectionInfo> CppBackendShim::getConnectionInfo(
         const String16& name) {
     std::optional<os::ConnectionInfo> connectionInfo;
     if (Status status =
@@ -519,8 +735,8 @@
             : std::nullopt;
 }
 
-status_t ServiceManagerShim::registerForNotifications(const String16& name,
-                                                      const sp<AidlRegistrationCallback>& cb) {
+status_t CppBackendShim::registerForNotifications(const String16& name,
+                                                  const sp<AidlRegistrationCallback>& cb) {
     if (cb == nullptr) {
         ALOGE("%s: null cb passed", __FUNCTION__);
         return BAD_VALUE;
@@ -539,9 +755,9 @@
     return OK;
 }
 
-void ServiceManagerShim::removeRegistrationCallbackLocked(const sp<AidlRegistrationCallback>& cb,
-                                                          ServiceCallbackMap::iterator* it,
-                                                          sp<RegistrationWaiter>* waiter) {
+void CppBackendShim::removeRegistrationCallbackLocked(const sp<AidlRegistrationCallback>& cb,
+                                                      ServiceCallbackMap::iterator* it,
+                                                      sp<RegistrationWaiter>* waiter) {
     std::vector<LocalRegistrationAndWaiter>& localRegistrationAndWaiters = (*it)->second;
     for (auto lit = localRegistrationAndWaiters.begin();
          lit != localRegistrationAndWaiters.end();) {
@@ -560,8 +776,8 @@
     }
 }
 
-status_t ServiceManagerShim::unregisterForNotifications(const String16& name,
-                                                        const sp<AidlRegistrationCallback>& cb) {
+status_t CppBackendShim::unregisterForNotifications(const String16& name,
+                                                    const sp<AidlRegistrationCallback>& cb) {
     if (cb == nullptr) {
         ALOGE("%s: null cb passed", __FUNCTION__);
         return BAD_VALUE;
@@ -590,7 +806,7 @@
     return OK;
 }
 
-std::vector<IServiceManager::ServiceDebugInfo> ServiceManagerShim::getServiceDebugInfo() {
+std::vector<IServiceManager::ServiceDebugInfo> CppBackendShim::getServiceDebugInfo() {
     std::vector<os::ServiceDebugInfo> serviceDebugInfos;
     std::vector<IServiceManager::ServiceDebugInfo> ret;
     if (Status status = mUnifiedServiceManager->getServiceDebugInfo(&serviceDebugInfos);
@@ -608,21 +824,21 @@
 }
 
 #ifndef __ANDROID__
-// ServiceManagerShim for host. Implements the old libbinder android::IServiceManager API.
+// CppBackendShim for host. Implements the old libbinder android::IServiceManager API.
 // The internal implementation of the AIDL interface android::os::IServiceManager calls into
 // on-device service manager.
-class ServiceManagerHostShim : public ServiceManagerShim {
+class CppServiceManagerHostShim : public CppBackendShim {
 public:
-    ServiceManagerHostShim(const sp<AidlServiceManager>& impl,
-                           const RpcDelegateServiceManagerOptions& options)
-          : ServiceManagerShim(impl), mOptions(options) {}
-    // ServiceManagerShim::getService is based on checkService, so no need to override it.
+    CppServiceManagerHostShim(const sp<AidlServiceManager>& impl,
+                              const RpcDelegateServiceManagerOptions& options)
+          : CppBackendShim(sp<BackendUnifiedServiceManager>::make(impl)), mOptions(options) {}
+    // CppBackendShim::getService is based on checkService, so no need to override it.
     sp<IBinder> checkService(const String16& name) const override {
         return getDeviceService({String8(name).c_str()}, mOptions);
     }
 
 protected:
-    // Override realGetService for ServiceManagerShim::waitForService.
+    // Override realGetService for CppBackendShim::waitForService.
     Status realGetService(const std::string& name, sp<IBinder>* _aidl_return) override {
         *_aidl_return = getDeviceService({"-g", name}, mOptions);
         return Status::ok();
@@ -643,7 +859,7 @@
         ALOGE("getDeviceService(\"manager\") returns non service manager");
         return nullptr;
     }
-    return sp<ServiceManagerHostShim>::make(interface, options);
+    return sp<CppServiceManagerHostShim>::make(interface, options);
 }
 #endif
 

diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index e8fe555..4b7af45 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp

@@ -1725,7 +1725,9 @@
                 }
             }
         }
-        ::munmap(ptr, len);
+        if (::munmap(ptr, len) == -1) {
+            ALOGW("munmap() failed: %s", strerror(errno));
+        }
     }
     ::close(fd);
     return status;
@@ -3332,7 +3334,9 @@
 
 void Parcel::Blob::release() {
     if (mFd != -1 && mData) {
-        ::munmap(mData, mSize);
+        if (::munmap(mData, mSize) == -1) {
+            ALOGW("munmap() failed: %s", strerror(errno));
+        }
     }
     clear();
 }

diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index a42ede2..5e7f151 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp

@@ -24,7 +24,6 @@
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/Stability.h>
-#include <cutils/atomic.h>
 #include <utils/AndroidThreads.h>
 #include <utils/String8.h>
 #include <utils/Thread.h>
@@ -57,6 +56,25 @@
 
 // -------------------------------------------------------------------------
 
+namespace {
+bool readDriverFeatureFile(const char* filename) {
+    int fd = open(filename, O_RDONLY | O_CLOEXEC);
+    char on;
+    if (fd == -1) {
+        ALOGE_IF(errno != ENOENT, "%s: cannot open %s: %s", __func__, filename, strerror(errno));
+        return false;
+    }
+    if (read(fd, &on, sizeof(on)) == -1) {
+        ALOGE("%s: error reading to %s: %s", __func__, filename, strerror(errno));
+        close(fd);
+        return false;
+    }
+    close(fd);
+    return on == '1';
+}
+
+} // namespace
+
 namespace android {
 
 using namespace android::binder::impl;
@@ -311,6 +329,7 @@
 sp<IBinder> ProcessState::getStrongProxyForHandle(int32_t handle)
 {
     sp<IBinder> result;
+    std::function<void()> postTask;
 
     std::unique_lock<std::mutex> _l(mLock);
 
@@ -358,7 +377,7 @@
                    return nullptr;
             }
 
-            sp<BpBinder> b = BpBinder::PrivateAccessor::create(handle);
+            sp<BpBinder> b = BpBinder::PrivateAccessor::create(handle, &postTask);
             e->binder = b.get();
             if (b) e->refs = b->getWeakRefs();
             result = b;
@@ -371,6 +390,10 @@
         }
     }
 
+    _l.unlock();
+
+    if (postTask) postTask();
+
     return result;
 }
 
@@ -387,7 +410,7 @@
 }
 
 String8 ProcessState::makeBinderThreadName() {
-    int32_t s = android_atomic_add(1, &mThreadPoolSeq);
+    int32_t s = mThreadPoolSeq.fetch_add(1, std::memory_order_release);
     pid_t pid = getpid();
 
     std::string_view driverName = mDriverName.c_str();
@@ -429,8 +452,17 @@
 }
 
 size_t ProcessState::getThreadPoolMaxTotalThreadCount() const {
+    // Need to read `mKernelStartedThreads` before `mThreadPoolStarted` (with
+    // non-relaxed memory ordering) to avoid a race like the following:
+    //
+    // thread A: if (mThreadPoolStarted) { // evaluates false
+    // thread B: mThreadPoolStarted = true;
+    // thread B: mKernelStartedThreads++;
+    // thread A: size_t kernelStarted = mKernelStartedThreads;
+    // thread A: LOG_ALWAYS_FATAL_IF(kernelStarted != 0, ...);
+    size_t kernelStarted = mKernelStartedThreads;
+
     if (mThreadPoolStarted) {
-        size_t kernelStarted = mKernelStartedThreads;
         size_t max = mMaxThreads;
         size_t current = mCurrentThreads;
 
@@ -460,7 +492,6 @@
 
     // must not be initialized or maybe has poll thread setup, we
     // currently don't track this in libbinder
-    size_t kernelStarted = mKernelStartedThreads;
     LOG_ALWAYS_FATAL_IF(kernelStarted != 0, "Expecting 0 kernel started threads but have %zu",
                         kernelStarted);
     return mCurrentThreads;
@@ -472,27 +503,20 @@
 
 #define DRIVER_FEATURES_PATH "/dev/binderfs/features/"
 bool ProcessState::isDriverFeatureEnabled(const DriverFeature feature) {
-    static const char* const names[] = {
-        [static_cast<int>(DriverFeature::ONEWAY_SPAM_DETECTION)] =
-            DRIVER_FEATURES_PATH "oneway_spam_detection",
-        [static_cast<int>(DriverFeature::EXTENDED_ERROR)] =
-            DRIVER_FEATURES_PATH "extended_error",
-    };
-    int fd = open(names[static_cast<int>(feature)], O_RDONLY | O_CLOEXEC);
-    char on;
-    if (fd == -1) {
-        ALOGE_IF(errno != ENOENT, "%s: cannot open %s: %s", __func__,
-                 names[static_cast<int>(feature)], strerror(errno));
-        return false;
+    // Use static variable to cache the results.
+    if (feature == DriverFeature::ONEWAY_SPAM_DETECTION) {
+        static bool enabled = readDriverFeatureFile(DRIVER_FEATURES_PATH "oneway_spam_detection");
+        return enabled;
     }
-    if (read(fd, &on, sizeof(on)) == -1) {
-        ALOGE("%s: error reading to %s: %s", __func__,
-                 names[static_cast<int>(feature)], strerror(errno));
-        close(fd);
-        return false;
+    if (feature == DriverFeature::EXTENDED_ERROR) {
+        static bool enabled = readDriverFeatureFile(DRIVER_FEATURES_PATH "extended_error");
+        return enabled;
     }
-    close(fd);
-    return on == '1';
+    if (feature == DriverFeature::FREEZE_NOTIFICATION) {
+        static bool enabled = readDriverFeatureFile(DRIVER_FEATURES_PATH "freeze_notification");
+        return enabled;
+    }
+    return false;
 }
 
 status_t ProcessState::enableOnewaySpamDetection(bool enable) {
@@ -577,7 +601,7 @@
 #ifdef __ANDROID__
     LOG_ALWAYS_FATAL_IF(!opened.ok(),
                         "Binder driver '%s' could not be opened. Error: %s. Terminating.",
-                        error.c_str(), driver);
+                        driver, error.c_str());
 #endif
 
     if (opened.ok()) {

diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index 16a7f9f..cd21a91 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp

@@ -589,6 +589,21 @@
 status_t RpcSession::setupOneSocketConnection(const RpcSocketAddress& addr,
                                               const std::vector<uint8_t>& sessionId,
                                               bool incoming) {
+    RpcTransportFd transportFd;
+    status_t status = singleSocketConnection(addr, mShutdownTrigger, &transportFd);
+    if (status != OK) return status;
+
+    return initAndAddConnection(std::move(transportFd), sessionId, incoming);
+}
+
+status_t singleSocketConnection(const RpcSocketAddress& addr,
+                                const std::unique_ptr<FdTrigger>& shutdownTrigger,
+                                RpcTransportFd* outFd) {
+    LOG_ALWAYS_FATAL_IF(outFd == nullptr,
+                        "There is no reason to call this function without an outFd");
+    LOG_ALWAYS_FATAL_IF(shutdownTrigger == nullptr,
+                        "FdTrigger argument is required so we don't get stuck in the connect call "
+                        "if the server process shuts down.");
     for (size_t tries = 0; tries < 5; tries++) {
         if (tries > 0) usleep(10000);
 
@@ -620,7 +635,7 @@
             if (connErrno == EAGAIN || connErrno == EINPROGRESS) {
                 // For non-blocking sockets, connect() may return EAGAIN (for unix domain socket) or
                 // EINPROGRESS (for others). Call poll() and getsockopt() to get the error.
-                status_t pollStatus = mShutdownTrigger->triggerablePoll(transportFd, POLLOUT);
+                status_t pollStatus = shutdownTrigger->triggerablePoll(transportFd, POLLOUT);
                 if (pollStatus != OK) {
                     ALOGE("Could not POLLOUT after connect() on non-blocking socket: %s",
                           statusToString(pollStatus).c_str());
@@ -654,7 +669,8 @@
         LOG_RPC_DETAIL("Socket at %s client with fd %d", addr.toString().c_str(),
                        transportFd.fd.get());
 
-        return initAndAddConnection(std::move(transportFd), sessionId, incoming);
+        *outFd = std::move(transportFd);
+        return OK;
     }
 
     ALOGE("Ran out of retries to connect to %s", addr.toString().c_str());
@@ -801,6 +817,14 @@
     return true;
 }
 
+void RpcSession::setSessionSpecificRoot(const sp<IBinder>& sessionSpecificRoot) {
+    LOG_ALWAYS_FATAL_IF(mSessionSpecificRootObject != nullptr,
+                        "Session specific root object already set");
+    LOG_ALWAYS_FATAL_IF(mForServer != nullptr,
+                        "Session specific root object cannot be set for a server");
+    mSessionSpecificRootObject = sessionSpecificRoot;
+}
+
 sp<RpcSession::RpcConnection> RpcSession::assignIncomingConnectionToThisThread(
         std::unique_ptr<RpcTransport> rpcTransport) {
     RpcMutexLockGuard _l(mMutex);

diff --git a/libs/binder/RpcSocketAddress.h b/libs/binder/RpcSocketAddress.h
index c7ba5d9..ee7d448 100644
--- a/libs/binder/RpcSocketAddress.h
+++ b/libs/binder/RpcSocketAddress.h

@@ -113,4 +113,11 @@
     unsigned int mPort;
 };
 
+/**
+ * Connects to a single socket and produces a RpcTransportFd.
+ */
+status_t singleSocketConnection(const RpcSocketAddress& address,
+                                const std::unique_ptr<FdTrigger>& shutdownTrigger,
+                                RpcTransportFd* outFd);
+
 } // namespace android

diff --git a/libs/binder/TEST_MAPPING b/libs/binder/TEST_MAPPING
index 1256173..95a5da2 100644
--- a/libs/binder/TEST_MAPPING
+++ b/libs/binder/TEST_MAPPING

@@ -133,6 +133,9 @@
     {
       "name": "binder_sdk_test",
       "host": true
+    },
+    {
+      "name": "binderCacheUnitTest"
     }
   ],
   "imports": [

diff --git a/libs/binder/aidl/android/os/IAccessor.aidl b/libs/binder/aidl/android/os/IAccessor.aidl
new file mode 100644
index 0000000..c06e05c
--- /dev/null
+++ b/libs/binder/aidl/android/os/IAccessor.aidl

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+package android.os;
+
+import android.os.ParcelFileDescriptor;
+
+/**
+ * Interface for accessing the RPC server of a service.
+ *
+ * @hide
+ */
+interface IAccessor {
+    /**
+     * The connection info was not available for this service.
+     * This happens when the user-supplied callback fails to produce
+     * valid connection info.
+     * Depending on the implementation of the callback, it might be helpful
+     * to retry.
+     */
+    const int ERROR_CONNECTION_INFO_NOT_FOUND = 0;
+    /**
+     * Failed to create the socket. Often happens when the process trying to create
+     * the socket lacks the permissions to do so.
+     * This may be a temporary issue, so retrying the operation is OK.
+     */
+    const int ERROR_FAILED_TO_CREATE_SOCKET = 1;
+    /**
+     * Failed to connect to the socket. This can happen for many reasons, so be sure
+     * log the error message and check it.
+     * This may be a temporary issue, so retrying the operation is OK.
+     */
+    const int ERROR_FAILED_TO_CONNECT_TO_SOCKET = 2;
+    /**
+     * Failed to connect to the socket with EACCES because this process does not
+     * have perimssions to connect.
+     * There is no need to retry the connection as this access will not be granted
+     * upon retry.
+     */
+    const int ERROR_FAILED_TO_CONNECT_EACCES = 3;
+    /**
+     * Unsupported socket family type returned.
+     * There is no need to retry the connection as this socket family is not
+     * supported.
+     */
+    const int ERROR_UNSUPPORTED_SOCKET_FAMILY = 4;
+
+    /**
+     * Adds a connection to the RPC server of the service managed by the IAccessor.
+     *
+     * This method can be called multiple times to establish multiple distinct
+     * connections to the same RPC server.
+     *
+     * @throws ServiceSpecificError with message and one of the IAccessor::ERROR_ values.
+     *
+     * @return A file descriptor connected to the RPC session of the service managed
+     *         by IAccessor.
+     */
+    ParcelFileDescriptor addConnection();
+
+    /**
+     * Get the instance name for the service this accessor is responsible for.
+     *
+     * This is used to verify the proxy binder is associated with the expected instance name.
+     */
+    String getInstanceName();
+}

diff --git a/libs/binder/aidl/android/os/IServiceManager.aidl b/libs/binder/aidl/android/os/IServiceManager.aidl
index 0fb1615..1d1f84f 100644
--- a/libs/binder/aidl/android/os/IServiceManager.aidl
+++ b/libs/binder/aidl/android/os/IServiceManager.aidl

@@ -18,6 +18,7 @@
 
 import android.os.IClientCallback;
 import android.os.IServiceCallback;
+import android.os.Service;
 import android.os.ServiceDebugInfo;
 import android.os.ConnectionInfo;
 
@@ -59,17 +60,31 @@
      * exists for legacy purposes.
      *
      * Returns null if the service does not exist.
+     *
+     * @deprecated TODO(b/355394904): Use getService2 instead.
      */
     @UnsupportedAppUsage
     @nullable IBinder getService(@utf8InCpp String name);
 
     /**
+     * Retrieve an existing service called @a name from the
+     * service manager.
+     *
+     * This is the same as checkService (returns immediately) but
+     * exists for legacy purposes.
+     *
+     * Returns an enum Service that can be of different types. The
+     * enum value is null if the service does not exist.
+     */
+    Service getService2(@utf8InCpp String name);
+
+    /**
      * Retrieve an existing service called @a name from the service
      * manager. Non-blocking. Returns null if the service does not
      * exist.
      */
     @UnsupportedAppUsage
-    @nullable IBinder checkService(@utf8InCpp String name);
+    Service checkService(@utf8InCpp String name);
 
     /**
      * Place a new @a service called @a name into the service

diff --git a/libs/binder/aidl/android/os/Service.aidl b/libs/binder/aidl/android/os/Service.aidl
new file mode 100644
index 0000000..4c52109
--- /dev/null
+++ b/libs/binder/aidl/android/os/Service.aidl

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+package android.os;
+
+/**
+ * Service is a union of different service types that can be returned
+ * by the internal {@link ServiceManager#getService(name)} API.
+ *
+ * @hide
+ */
+union Service {
+    @nullable IBinder binder;
+    @nullable IBinder accessor;
+}
\ No newline at end of file

diff --git a/libs/binder/binder_module.h b/libs/binder/binder_module.h
index b3a2d9e..65cdcd7 100644
--- a/libs/binder/binder_module.h
+++ b/libs/binder/binder_module.h

@@ -32,4 +32,34 @@
 #include <linux/android/binder.h>
 #include <sys/ioctl.h>
 
+struct binder_frozen_state_info {
+    binder_uintptr_t cookie;
+    __u32 is_frozen;
+};
+
+#ifndef BR_FROZEN_BINDER
+// Temporary definition of BR_FROZEN_BINDER until UAPI binder.h includes it.
+#define BR_FROZEN_BINDER _IOR('r', 21, struct binder_frozen_state_info)
+#endif // BR_FROZEN_BINDER
+
+#ifndef BR_CLEAR_FREEZE_NOTIFICATION_DONE
+// Temporary definition of BR_CLEAR_FREEZE_NOTIFICATION_DONE until UAPI binder.h includes it.
+#define BR_CLEAR_FREEZE_NOTIFICATION_DONE _IOR('r', 22, binder_uintptr_t)
+#endif // BR_CLEAR_FREEZE_NOTIFICATION_DONE
+
+#ifndef BC_REQUEST_FREEZE_NOTIFICATION
+// Temporary definition of BC_REQUEST_FREEZE_NOTIFICATION until UAPI binder.h includes it.
+#define BC_REQUEST_FREEZE_NOTIFICATION _IOW('c', 19, struct binder_handle_cookie)
+#endif // BC_REQUEST_FREEZE_NOTIFICATION
+
+#ifndef BC_CLEAR_FREEZE_NOTIFICATION
+// Temporary definition of BC_CLEAR_FREEZE_NOTIFICATION until UAPI binder.h includes it.
+#define BC_CLEAR_FREEZE_NOTIFICATION _IOW('c', 20, struct binder_handle_cookie)
+#endif // BC_CLEAR_FREEZE_NOTIFICATION
+
+#ifndef BC_FREEZE_NOTIFICATION_DONE
+// Temporary definition of BC_FREEZE_NOTIFICATION_DONE until UAPI binder.h includes it.
+#define BC_FREEZE_NOTIFICATION_DONE _IOW('c', 21, binder_uintptr_t)
+#endif // BC_FREEZE_NOTIFICATION_DONE
+
 #endif // _BINDER_MODULE_H_

diff --git a/libs/binder/include/binder/BpBinder.h b/libs/binder/include/binder/BpBinder.h
index d7f74c4..7518044 100644
--- a/libs/binder/include/binder/BpBinder.h
+++ b/libs/binder/include/binder/BpBinder.h

@@ -29,6 +29,7 @@
 // ---------------------------------------------------------------------------
 namespace android {
 
+class IPCThreadState;
 class RpcSession;
 class RpcState;
 namespace internal {
@@ -66,6 +67,12 @@
                                                       void* cookie = nullptr, uint32_t flags = 0,
                                                       wp<DeathRecipient>* outRecipient = nullptr);
 
+    [[nodiscard]] status_t addFrozenStateChangeCallback(
+            const wp<FrozenStateChangeCallback>& recipient);
+
+    [[nodiscard]] status_t removeFrozenStateChangeCallback(
+            const wp<FrozenStateChangeCallback>& recipient);
+
     LIBBINDER_EXPORTED virtual void* attachObject(const void* objectID, void* object,
                                                   void* cleanupCookie,
                                                   object_cleanup_func func) final;
@@ -75,7 +82,6 @@
     LIBBINDER_EXPORTED sp<IBinder> lookupOrCreateWeak(const void* objectID,
                                                       IBinder::object_make_func make,
                                                       const void* makeArgs);
-
     LIBBINDER_EXPORTED virtual BpBinder* remoteBinder();
 
     LIBBINDER_EXPORTED void sendObituary();
@@ -132,9 +138,14 @@
         friend class ::android::ProcessState;
         friend class ::android::RpcSession;
         friend class ::android::RpcState;
-        explicit PrivateAccessor(const BpBinder* binder) : mBinder(binder) {}
+        friend class ::android::IPCThreadState;
+        explicit PrivateAccessor(const BpBinder* binder)
+              : mBinder(binder), mMutableBinder(nullptr) {}
+        explicit PrivateAccessor(BpBinder* binder) : mBinder(binder), mMutableBinder(binder) {}
 
-        static sp<BpBinder> create(int32_t handle) { return BpBinder::create(handle); }
+        static sp<BpBinder> create(int32_t handle, std::function<void()>* postTask) {
+            return BpBinder::create(handle, postTask);
+        }
         static sp<BpBinder> create(const sp<RpcSession>& session, uint64_t address) {
             return BpBinder::create(session, address);
         }
@@ -146,17 +157,22 @@
         uint64_t rpcAddress() const { return mBinder->rpcAddress(); }
         const sp<RpcSession>& rpcSession() const { return mBinder->rpcSession(); }
 
+        void onFrozenStateChanged(bool isFrozen) { mMutableBinder->onFrozenStateChanged(isFrozen); }
         const BpBinder* mBinder;
+        BpBinder* mMutableBinder;
     };
+
     LIBBINDER_EXPORTED const PrivateAccessor getPrivateAccessor() const {
         return PrivateAccessor(this);
     }
 
+    PrivateAccessor getPrivateAccessor() { return PrivateAccessor(this); }
+
 private:
     friend PrivateAccessor;
     friend class sp<BpBinder>;
 
-    static sp<BpBinder> create(int32_t handle);
+    static sp<BpBinder> create(int32_t handle, std::function<void()>* postTask);
     static sp<BpBinder> create(const sp<RpcSession>& session, uint64_t address);
 
     struct BinderHandle {
@@ -192,6 +208,14 @@
         uint32_t flags;
     };
 
+    void onFrozenStateChanged(bool isFrozen);
+
+    struct FrozenStateChange {
+        bool isFrozen = false;
+        Vector<wp<FrozenStateChangeCallback>> callbacks;
+        bool initialStateReceived = false;
+    };
+
     void reportOneDeath(const Obituary& obit);
     bool isDescriptorCached() const;
 
@@ -199,6 +223,7 @@
     volatile int32_t mAlive;
     volatile int32_t mObitsSent;
     Vector<Obituary>* mObituaries;
+    std::unique_ptr<FrozenStateChange> mFrozen;
     ObjectManager mObjects;
     mutable String16 mDescriptorCache;
     int32_t mTrackedUid;

diff --git a/libs/binder/include/binder/IBinder.h b/libs/binder/include/binder/IBinder.h
index 4eb1c08..1ed7c91 100644
--- a/libs/binder/include/binder/IBinder.h
+++ b/libs/binder/include/binder/IBinder.h

@@ -202,9 +202,18 @@
         virtual void binderDied(const wp<IBinder>& who) = 0;
     };
 
-    #if defined(__clang__)
-    #pragma clang diagnostic pop
-    #endif
+    class FrozenStateChangeCallback : public virtual RefBase {
+    public:
+        enum class State {
+            FROZEN,
+            UNFROZEN,
+        };
+        virtual void onStateChanged(const wp<IBinder>& who, State state) = 0;
+    };
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
 
     /**
      * Register the @a recipient for a notification if this binder
@@ -253,6 +262,48 @@
                                             uint32_t flags = 0,
                                             wp<DeathRecipient>* outRecipient = nullptr) = 0;
 
+    /**
+     * addFrozenStateChangeCallback provides a callback mechanism to notify
+     * about process frozen/unfrozen events. Upon registration and any
+     * subsequent state changes, the callback is invoked with the latest process
+     * frozen state.
+     *
+     * If the listener process (the one using this API) is itself frozen, state
+     * change events might be combined into a single one with the latest state.
+     * (meaning 'frozen, unfrozen' might just be 'unfrozen'). This single event
+     * would then be delivered when the listener process becomes unfrozen.
+     * Similarly, if an event happens before the previous event is consumed,
+     * they might be combined. This means the callback might not be called for
+     * every single state change, so don't rely on this API to count how many
+     * times the state has changed.
+     *
+     * @note When all references to the binder are dropped, the callback is
+     * automatically removed. So, you must hold onto a binder in order to
+     * receive notifications about it.
+     *
+     * @note You will only receive freeze notifications for remote binders, as
+     * local binders by definition can't be frozen without you being frozen as
+     * well. Trying to use this function on a local binder will result in an
+     * INVALID_OPERATION code being returned and nothing happening.
+     *
+     * @note This binder always holds a weak reference to the callback.
+     *
+     * @note You will only receive a weak reference to the binder object. You
+     * should not try to promote this to a strong reference. (Nor should you
+     * need to, as there is nothing useful you can directly do with it now that
+     * it has passed on.)
+     */
+    [[nodiscard]] status_t addFrozenStateChangeCallback(
+            const wp<FrozenStateChangeCallback>& callback);
+
+    /**
+     * Remove a previously registered freeze callback.
+     * The @a callback will no longer be called if this object
+     * changes its frozen state.
+     */
+    [[nodiscard]] status_t removeFrozenStateChangeCallback(
+            const wp<FrozenStateChangeCallback>& callback);
+
     virtual bool            checkSubclass(const void* subclassID) const;
 
     typedef void (*object_cleanup_func)(const void* id, void* obj, void* cleanupCookie);

diff --git a/libs/binder/include/binder/IPCThreadState.h b/libs/binder/include/binder/IPCThreadState.h
index 09ab442..9ef4e69 100644
--- a/libs/binder/include/binder/IPCThreadState.h
+++ b/libs/binder/include/binder/IPCThreadState.h

@@ -174,6 +174,8 @@
     LIBBINDER_EXPORTED static void expungeHandle(int32_t handle, IBinder* binder);
     LIBBINDER_EXPORTED status_t requestDeathNotification(int32_t handle, BpBinder* proxy);
     LIBBINDER_EXPORTED status_t clearDeathNotification(int32_t handle, BpBinder* proxy);
+    [[nodiscard]] status_t addFrozenStateChangeCallback(int32_t handle, BpBinder* proxy);
+    [[nodiscard]] status_t removeFrozenStateChangeCallback(int32_t handle, BpBinder* proxy);
 
     LIBBINDER_EXPORTED static void shutdown();
 
@@ -210,13 +212,14 @@
     IPCThreadState();
     ~IPCThreadState();
 
-    status_t sendReply(const Parcel& reply, uint32_t flags);
-    status_t waitForResponse(Parcel* reply, status_t* acquireResult = nullptr);
-    status_t talkWithDriver(bool doReceive = true);
-    status_t writeTransactionData(int32_t cmd, uint32_t binderFlags, int32_t handle, uint32_t code,
-                                  const Parcel& data, status_t* statusBuffer);
-    status_t getAndExecuteCommand();
-    status_t executeCommand(int32_t command);
+    [[nodiscard]] status_t sendReply(const Parcel& reply, uint32_t flags);
+    [[nodiscard]] status_t waitForResponse(Parcel* reply, status_t* acquireResult = nullptr);
+    [[nodiscard]] status_t talkWithDriver(bool doReceive = true);
+    [[nodiscard]] status_t writeTransactionData(int32_t cmd, uint32_t binderFlags, int32_t handle,
+                                                uint32_t code, const Parcel& data,
+                                                status_t* statusBuffer);
+    [[nodiscard]] status_t getAndExecuteCommand();
+    [[nodiscard]] status_t executeCommand(int32_t command);
     void processPendingDerefs();
     void processPostWriteDerefs();
 

diff --git a/libs/binder/include/binder/IServiceManager.h b/libs/binder/include/binder/IServiceManager.h
index 5fb7307..879f319 100644
--- a/libs/binder/include/binder/IServiceManager.h
+++ b/libs/binder/include/binder/IServiceManager.h

@@ -17,14 +17,16 @@
 #pragma once
 #include <binder/Common.h>
 #include <binder/IInterface.h>
-#include <utils/Vector.h>
+// Trusty has its own definition of socket APIs from trusty_ipc.h
+#ifndef __TRUSTY__
+#include <sys/socket.h>
+#endif // __TRUSTY__
 #include <utils/String16.h>
+#include <utils/Vector.h>
 #include <optional>
 
 namespace android {
 
-// ----------------------------------------------------------------------
-
 /**
  * Service manager for C++ services.
  *
@@ -216,6 +218,64 @@
 LIBBINDER_EXPORTED bool checkPermission(const String16& permission, pid_t pid, uid_t uid,
                                         bool logPermissionFailure = true);
 
+// ----------------------------------------------------------------------
+// Trusty's definition of the socket APIs does not include sockaddr types
+#ifndef __TRUSTY__
+typedef std::function<status_t(const String16& name, sockaddr* outAddr, socklen_t addrSize)>
+        RpcSocketAddressProvider;
+
+typedef std::function<sp<IBinder>(const String16& name)> RpcAccessorProvider;
+
+class AccessorProvider;
+
+/**
+ * Register an accessor provider for the service manager APIs.
+ *
+ * \param provider callback that generates Accessors.
+ *
+ * \return A pointer used as a recept for the successful addition of the
+ *         AccessorProvider. This is needed to unregister it later.
+ */
+[[nodiscard]] LIBBINDER_EXPORTED std::weak_ptr<AccessorProvider> addAccessorProvider(
+        RpcAccessorProvider&& providerCallback);
+
+/**
+ * Remove an accessor provider using the pointer provided by addAccessorProvider
+ * along with the cookie pointer that was used.
+ *
+ * \param provider cookie that was returned by addAccessorProvider to keep track
+ *        of this instance.
+ */
+[[nodiscard]] LIBBINDER_EXPORTED status_t
+removeAccessorProvider(std::weak_ptr<AccessorProvider> provider);
+
+/**
+ * Create an Accessor associated with a service that can create a socket connection based
+ * on the connection info from the supplied RpcSocketAddressProvider.
+ *
+ * \param instance name of the service that this Accessor is associated with
+ * \param connectionInfoProvider a callback that returns connection info for
+ *        connecting to the service.
+ * \return the binder of the IAccessor implementation from libbinder
+ */
+LIBBINDER_EXPORTED sp<IBinder> createAccessor(const String16& instance,
+                                              RpcSocketAddressProvider&& connectionInfoProvider);
+
+/**
+ * Check to make sure this binder is the expected binder that is an IAccessor
+ * associated with a specific instance.
+ *
+ * This helper function exists to avoid adding the IAccessor type to
+ * libbinder_ndk.
+ *
+ * \param instance name of the service that this Accessor should be associated with
+ * \param binder to validate
+ *
+ * \return OK if the binder is an IAccessor for `instance`
+ */
+LIBBINDER_EXPORTED status_t validateAccessor(const String16& instance, const sp<IBinder>& binder);
+#endif // __TRUSTY__
+
 #ifndef __ANDROID__
 // Create an IServiceManager that delegates the service manager on the device via adb.
 // This is can be set as the default service manager at program start, so that

diff --git a/libs/binder/include/binder/IServiceManagerUnitTestHelper.h b/libs/binder/include/binder/IServiceManagerUnitTestHelper.h
new file mode 100644
index 0000000..ff25163
--- /dev/null
+++ b/libs/binder/include/binder/IServiceManagerUnitTestHelper.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2024 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/os/IServiceManager.h>
+#include "IServiceManager.h"
+namespace android {
+
+/**
+ * Encapsulate an AidlServiceManager in a CppBackendShim. Only used for testing.
+ */
+LIBBINDER_EXPORTED sp<IServiceManager> getServiceManagerShimFromAidlServiceManagerForTests(
+        const sp<os::IServiceManager>& sm);
+
+} // namespace android
\ No newline at end of file

diff --git a/libs/binder/include/binder/ProcessState.h b/libs/binder/include/binder/ProcessState.h
index 021bd58..21bfd42 100644
--- a/libs/binder/include/binder/ProcessState.h
+++ b/libs/binder/include/binder/ProcessState.h

@@ -133,6 +133,7 @@
     enum class DriverFeature {
         ONEWAY_SPAM_DETECTION,
         EXTENDED_ERROR,
+        FREEZE_NOTIFICATION,
     };
     // Determine whether a feature is supported by the binder driver.
     LIBBINDER_EXPORTED static bool isDriverFeatureEnabled(const DriverFeature feature);
@@ -188,8 +189,8 @@
     Vector<handle_entry> mHandleToObject;
 
     bool mForked;
-    bool mThreadPoolStarted;
-    volatile int32_t mThreadPoolSeq;
+    std::atomic_bool mThreadPoolStarted;
+    std::atomic_int32_t mThreadPoolSeq;
 
     CallRestriction mCallRestriction;
 };

diff --git a/libs/binder/include/binder/RpcSession.h b/libs/binder/include/binder/RpcSession.h
index 40102bb..af37bf2 100644
--- a/libs/binder/include/binder/RpcSession.h
+++ b/libs/binder/include/binder/RpcSession.h

@@ -220,6 +220,12 @@
     // internal only
     LIBBINDER_EXPORTED const std::unique_ptr<RpcState>& state() { return mRpcBinderState; }
 
+    /**
+     * Sets the session-specific root object. This is the object that will be used to attach
+     * the IAccessor binder to the RpcSession when a binder is set up via accessor.
+     */
+    LIBBINDER_EXPORTED void setSessionSpecificRoot(const sp<IBinder>& sessionSpecificRoot);
+
 private:
     friend sp<RpcSession>;
     friend RpcServer;

diff --git a/libs/binder/ndk/Android.bp b/libs/binder/ndk/Android.bp
index 26c228d..5f45cb2 100644
--- a/libs/binder/ndk/Android.bp
+++ b/libs/binder/ndk/Android.bp

@@ -230,12 +230,24 @@
     },
     apex_available: [
         "//apex_available:platform",
+        "//apex_available:anyapex",
         "com.android.media",
         "com.android.media.swcodec",
     ],
     min_sdk_version: "29",
 }
 
+// TODO: if you try to export libbinder_headers_platform_shared from libbinder_ndk.ndk, it will
+// not select the NDK variant of libbinder_headers_platform_shared and instead, it will error
+// that the NDK can't depend on glibc C++.
+cc_library_headers {
+    name: "libbinder_headers_platform_shared_ndk",
+    export_include_dirs: ["include_cpp"],
+    sdk_version: "29",
+    min_sdk_version: "29",
+    visibility: [":__subpackages__"],
+}
+
 ndk_headers {
     name: "libbinder_ndk_headers",
     from: "include_ndk/android",
@@ -246,23 +258,14 @@
     license: "NOTICE",
 }
 
-// TODO(b/160624671): package with the aidl compiler
-ndk_headers {
-    name: "libbinder_ndk_helper_headers",
-    from: "include_cpp/android",
-    to: "android",
-    srcs: [
-        "include_cpp/android/*.h",
-    ],
-    license: "NOTICE",
-}
+// include_cpp are packaged in development/build/sdk.atree with the AIDL compiler
 
 ndk_library {
     name: "libbinder_ndk",
     symbol_file: "libbinder_ndk.map.txt",
     first_version: "29",
     export_header_libs: [
-        "libbinder_ndk_headers",
-        "libbinder_ndk_helper_headers",
+        // used to be part of the NDK, platform things depend on it
+        "libbinder_headers_platform_shared_ndk",
     ],
 }

diff --git a/libs/binder/ndk/include_cpp/android/binder_interface_utils.h b/libs/binder/ndk/include_cpp/android/binder_interface_utils.h
index 6273804..af56bf0 100644
--- a/libs/binder/ndk/include_cpp/android/binder_interface_utils.h
+++ b/libs/binder/ndk/include_cpp/android/binder_interface_utils.h

@@ -225,6 +225,8 @@
 
     SpAIBinder asBinder() override final;
 
+    const SpAIBinder& asBinderReference() { return mBinder; }
+
     bool isRemote() override final { return AIBinder_isRemote(mBinder.get()); }
 
     binder_status_t dump(int fd, const char** args, uint32_t numArgs) override {

diff --git a/libs/binder/ndk/include_ndk/android/binder_ibinder.h b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
index 2929bce..72d255e 100644
--- a/libs/binder/ndk/include_ndk/android/binder_ibinder.h
+++ b/libs/binder/ndk/include_ndk/android/binder_ibinder.h

@@ -771,7 +771,7 @@
  * This provides a per-process-unique total ordering of binders where a null
  * AIBinder* object is considered to be before all other binder objects.
  * For instance, two binders refer to the same object in a local or remote
- * process when both AIBinder_lt(a, b) and AIBinder(b, a) are false. This API
+ * process when both AIBinder_lt(a, b) and AIBinder_lt(b, a) are false. This API
  * might be used to insert and lookup binders in binary search trees.
  *
  * AIBinder* pointers themselves actually also create a per-process-unique total

diff --git a/libs/binder/ndk/include_ndk/android/persistable_bundle.h b/libs/binder/ndk/include_ndk/android/persistable_bundle.h
index 5e0d4da..1d516ae 100644
--- a/libs/binder/ndk/include_ndk/android/persistable_bundle.h
+++ b/libs/binder/ndk/include_ndk/android/persistable_bundle.h

@@ -17,13 +17,6 @@
 #pragma once
 
 #include <android/binder_parcel.h>
-#if defined(__ANDROID_VENDOR__)
-#include <android/llndk-versioning.h>
-#else
-#if !defined(__INTRODUCED_IN_LLNDK)
-#define __INTRODUCED_IN_LLNDK(level) __attribute__((annotate("introduced_in_llndk=" #level)))
-#endif
-#endif  // __ANDROID_VENDOR__
 #include <stdbool.h>
 #include <stdint.h>
 #include <sys/cdefs.h>
@@ -83,8 +76,7 @@
  *
  * \return Pointer to a new APersistableBundle
  */
-APersistableBundle* _Nullable APersistableBundle_new() __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+APersistableBundle* _Nullable APersistableBundle_new() __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Create a new APersistableBundle based off an existing APersistableBundle.
@@ -98,7 +90,7 @@
  * \return Pointer to a new APersistableBundle
  */
 APersistableBundle* _Nullable APersistableBundle_dup(const APersistableBundle* _Nonnull pBundle)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Delete an APersistableBundle. This must always be called when finished using
@@ -109,7 +101,7 @@
  * Available since API level 202404.
  */
 void APersistableBundle_delete(APersistableBundle* _Nullable pBundle)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Check for equality of APersistableBundles.
@@ -123,7 +115,7 @@
  */
 bool APersistableBundle_isEqual(const APersistableBundle* _Nonnull lhs,
                                 const APersistableBundle* _Nonnull rhs)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Read an APersistableBundle from an AParcel.
@@ -142,7 +134,7 @@
  */
 binder_status_t APersistableBundle_readFromParcel(
         const AParcel* _Nonnull parcel, APersistableBundle* _Nullable* _Nonnull outPBundle)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Write an APersistableBundle to an AParcel.
@@ -162,7 +154,7 @@
  */
 binder_status_t APersistableBundle_writeToParcel(const APersistableBundle* _Nonnull pBundle,
                                                  AParcel* _Nonnull parcel)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get the size of an APersistableBundle. This is the number of mappings in the
@@ -175,7 +167,7 @@
  * \return number of mappings in the object
  */
 int32_t APersistableBundle_size(const APersistableBundle* _Nonnull pBundle)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Erase any entries added with the provided key.
@@ -188,7 +180,7 @@
  * \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__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put a boolean associated with the provided key.
@@ -201,8 +193,7 @@
  * Available since API level 202404.
  */
 void APersistableBundle_putBoolean(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
-                                   bool val) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                   bool val) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put an int32_t associated with the provided key.
@@ -215,8 +206,7 @@
  * Available since API level 202404.
  */
 void APersistableBundle_putInt(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
-                               int32_t val) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                               int32_t val) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put an int64_t associated with the provided key.
@@ -229,8 +219,7 @@
  * Available since API level 202404.
  */
 void APersistableBundle_putLong(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
-                                int64_t val) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                int64_t val) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put a double associated with the provided key.
@@ -243,8 +232,7 @@
  * Available since API level 202404.
  */
 void APersistableBundle_putDouble(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
-                                  double val) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                  double val) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put a string associated with the provided key.
@@ -258,8 +246,7 @@
  * Available since API level 202404.
  */
 void APersistableBundle_putString(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
-                                  const char* _Nonnull val) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                  const char* _Nonnull val) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put a boolean vector associated with the provided key.
@@ -275,8 +262,7 @@
  */
 void APersistableBundle_putBooleanVector(APersistableBundle* _Nonnull pBundle,
                                          const char* _Nonnull key, const bool* _Nonnull vec,
-                                         int32_t num) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                         int32_t num) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put an int32_t vector associated with the provided key.
@@ -292,7 +278,7 @@
  */
 void APersistableBundle_putIntVector(APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
                                      const int32_t* _Nonnull vec, int32_t num)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put an int64_t vector associated with the provided key.
@@ -308,8 +294,7 @@
  */
 void APersistableBundle_putLongVector(APersistableBundle* _Nonnull pBundle,
                                       const char* _Nonnull key, const int64_t* _Nonnull vec,
-                                      int32_t num) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                      int32_t num) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put a double vector associated with the provided key.
@@ -325,8 +310,7 @@
  */
 void APersistableBundle_putDoubleVector(APersistableBundle* _Nonnull pBundle,
                                         const char* _Nonnull key, const double* _Nonnull vec,
-                                        int32_t num) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                        int32_t num) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put a string vector associated with the provided key.
@@ -343,7 +327,7 @@
 void APersistableBundle_putStringVector(APersistableBundle* _Nonnull pBundle,
                                         const char* _Nonnull key,
                                         const char* _Nullable const* _Nullable vec, int32_t num)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Put an APersistableBundle associated with the provided key.
@@ -359,7 +343,7 @@
 void APersistableBundle_putPersistableBundle(APersistableBundle* _Nonnull pBundle,
                                              const char* _Nonnull key,
                                              const APersistableBundle* _Nonnull val)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get a boolean associated with the provided key.
@@ -374,7 +358,7 @@
  */
 bool APersistableBundle_getBoolean(const APersistableBundle* _Nonnull pBundle,
                                    const char* _Nonnull key, bool* _Nonnull val)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get an int32_t associated with the provided key.
@@ -388,8 +372,7 @@
  * \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__)
-        __INTRODUCED_IN_LLNDK(202404);
+                               int32_t* _Nonnull val) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get an int64_t associated with the provided key.
@@ -404,7 +387,7 @@
  */
 bool APersistableBundle_getLong(const APersistableBundle* _Nonnull pBundle,
                                 const char* _Nonnull key, int64_t* _Nonnull val)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get a double associated with the provided key.
@@ -419,7 +402,7 @@
  */
 bool APersistableBundle_getDouble(const APersistableBundle* _Nonnull pBundle,
                                   const char* _Nonnull key, double* _Nonnull val)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get a string associated with the provided key.
@@ -440,8 +423,7 @@
 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__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                     void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get a boolean vector associated with the provided key and place it in the
@@ -468,7 +450,7 @@
 int32_t APersistableBundle_getBooleanVector(const APersistableBundle* _Nonnull pBundle,
                                             const char* _Nonnull key, bool* _Nullable buffer,
                                             int32_t bufferSizeBytes)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get an int32_t vector associated with the provided key and place it in the
@@ -494,8 +476,7 @@
  */
 int32_t APersistableBundle_getIntVector(const APersistableBundle* _Nonnull pBundle,
                                         const char* _Nonnull key, int32_t* _Nullable buffer,
-                                        int32_t bufferSizeBytes) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                        int32_t bufferSizeBytes) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get an int64_t vector associated with the provided key and place it in the
@@ -521,8 +502,8 @@
  */
 int32_t APersistableBundle_getLongVector(const APersistableBundle* _Nonnull pBundle,
                                          const char* _Nonnull key, int64_t* _Nullable buffer,
-                                         int32_t bufferSizeBytes) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                         int32_t bufferSizeBytes)
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get a double vector associated with the provided key and place it in the
@@ -549,7 +530,7 @@
 int32_t APersistableBundle_getDoubleVector(const APersistableBundle* _Nonnull pBundle,
                                            const char* _Nonnull key, double* _Nullable buffer,
                                            int32_t bufferSizeBytes)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get a string vector associated with the provided key and place it in the
@@ -586,7 +567,7 @@
                                            int32_t bufferSizeBytes,
                                            APersistableBundle_stringAllocator stringAllocator,
                                            void* _Nullable context)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get an APersistableBundle* associated with the provided key.
@@ -605,7 +586,7 @@
 bool APersistableBundle_getPersistableBundle(const APersistableBundle* _Nonnull pBundle,
                                              const char* _Nonnull key,
                                              APersistableBundle* _Nullable* _Nonnull outBundle)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -638,7 +619,7 @@
                                           int32_t bufferSizeBytes,
                                           APersistableBundle_stringAllocator stringAllocator,
                                           void* _Nullable context)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -669,8 +650,7 @@
 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__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                      void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -701,8 +681,7 @@
 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__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                       void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -734,8 +713,8 @@
                                          char* _Nullable* _Nullable outKeys,
                                          int32_t bufferSizeBytes,
                                          APersistableBundle_stringAllocator stringAllocator,
-                                         void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                         void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -767,8 +746,8 @@
                                          char* _Nullable* _Nullable outKeys,
                                          int32_t bufferSizeBytes,
                                          APersistableBundle_stringAllocator stringAllocator,
-                                         void* _Nullable context) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                         void* _Nullable context)
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -801,7 +780,7 @@
                                                 int32_t bufferSizeBytes,
                                                 APersistableBundle_stringAllocator stringAllocator,
                                                 void* _Nullable context)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -834,7 +813,7 @@
                                             int32_t bufferSizeBytes,
                                             APersistableBundle_stringAllocator stringAllocator,
                                             void* _Nullable context)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -867,7 +846,7 @@
                                              int32_t bufferSizeBytes,
                                              APersistableBundle_stringAllocator stringAllocator,
                                              void* _Nullable context)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -899,7 +878,7 @@
                                                int32_t bufferSizeBytes,
                                                APersistableBundle_stringAllocator stringAllocator,
                                                void* _Nullable context)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -932,7 +911,7 @@
                                                int32_t bufferSizeBytes,
                                                APersistableBundle_stringAllocator stringAllocator,
                                                void* _Nullable context)
-        __INTRODUCED_IN(__ANDROID_API_V__) __INTRODUCED_IN_LLNDK(202404);
+        __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Get all of the keys associated with this specific type and place it in the
@@ -963,6 +942,6 @@
 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__) __INTRODUCED_IN_LLNDK(202404);
+        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 41b30a0..cc4943b 100644
--- a/libs/binder/ndk/include_platform/android/binder_manager.h
+++ b/libs/binder/ndk/include_platform/android/binder_manager.h

@@ -18,7 +18,6 @@
 
 #include <android/binder_ibinder.h>
 #include <android/binder_status.h>
-#include <android/llndk-versioning.h>
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
@@ -257,8 +256,7 @@
  * \return the result of dlopen of the specified HAL
  */
 void* AServiceManager_openDeclaredPassthroughHal(const char* interface, const char* instance,
-                                                 int flag) __INTRODUCED_IN(__ANDROID_API_V__)
-        __INTRODUCED_IN_LLNDK(202404);
+                                                 int flag) __INTRODUCED_IN(__ANDROID_API_V__);
 
 /**
  * Prevent lazy services without client from shutting down their process

diff --git a/libs/binder/ndk/include_platform/android/binder_process.h b/libs/binder/ndk/include_platform/android/binder_process.h
index 68528e1..6aff994 100644
--- a/libs/binder/ndk/include_platform/android/binder_process.h
+++ b/libs/binder/ndk/include_platform/android/binder_process.h

@@ -47,8 +47,11 @@
  * be called once before startThreadPool. The number of threads can never decrease.
  *
  * This count refers to the number of threads that will be created lazily by the kernel, in
- * addition to the threads created by ABinderProcess_startThreadPool or
- * ABinderProcess_joinThreadPool.
+ * addition to the single threads created by ABinderProcess_startThreadPool (+1) or
+ * ABinderProcess_joinThreadPool (+1). Note: ABinderProcess_startThreadPool starts a thread
+ * itself, but it also enables up to the number of threads passed to this function to start.
+ * This function does not start any threads itself; it only configures
+ * ABinderProcess_startThreadPool.
  *
  * Do not use this from a library. Apps setup their own threadpools, and otherwise, the main
  * function should be responsible for configuring the threadpool for the entire application.
@@ -63,8 +66,8 @@
 bool ABinderProcess_isThreadPoolStarted(void);
 /**
  * This adds the current thread to the threadpool. This thread will be in addition to the thread
- * started by ABinderProcess_startThreadPool and the lazy kernel-started threads specified by
- * ABinderProcess_setThreadPoolMaxThreadCount.
+ * configured with ABinderProcess_setThreadPoolMaxThreadCount and started with
+ * ABinderProcess_startThreadPool.
  *
  * Do not use this from a library. Apps setup their own threadpools, and otherwise, the main
  * function should be responsible for configuring the threadpool for the entire application.

diff --git a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
index f518a22..3cd2b9a 100644
--- a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
+++ b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp

@@ -46,6 +46,7 @@
 #include "android/binder_ibinder.h"
 
 using namespace android;
+using namespace std::chrono_literals;
 
 constexpr char kExistingNonNdkService[] = "SurfaceFlinger";
 constexpr char kBinderNdkUnitTestService[] = "BinderNdkUnitTest";
@@ -54,7 +55,7 @@
 constexpr char kActiveServicesNdkUnitTestService[] = "ActiveServicesNdkUnitTestService";
 constexpr char kBinderNdkUnitTestServiceFlagged[] = "BinderNdkUnitTestFlagged";
 
-constexpr unsigned int kShutdownWaitTime = 11;
+constexpr auto kShutdownWaitTime = 30s;
 constexpr uint64_t kContextTestValue = 0xb4e42fb4d9a1d715;
 
 class MyTestFoo : public IFoo {
@@ -253,12 +254,22 @@
 }
 
 bool isServiceRunning(const char* serviceName) {
-    AIBinder* binder = AServiceManager_checkService(serviceName);
-    if (binder == nullptr) {
-        return false;
+    static const sp<android::IServiceManager> sm(android::defaultServiceManager());
+    const Vector<String16> services = sm->listServices();
+    for (const auto service : services) {
+        if (service == String16(serviceName)) return true;
     }
-    AIBinder_decStrong(binder);
+    return false;
+}
 
+bool isServiceShutdownWithWait(const char* serviceName) {
+    LOG(INFO) << "About to check and wait for shutdown of " << std::string(serviceName);
+    const auto before = std::chrono::steady_clock::now();
+    while (isServiceRunning(serviceName)) {
+        sleep(1);
+        const auto after = std::chrono::steady_clock::now();
+        if (after - before >= kShutdownWaitTime) return false;
+    }
     return true;
 }
 
@@ -450,8 +461,8 @@
     service = nullptr;
     IPCThreadState::self()->flushCommands();
     // Make sure the service is dead after some time of no use
-    sleep(kShutdownWaitTime);
-    ASSERT_EQ(nullptr, AServiceManager_checkService(kLazyBinderNdkUnitTestService));
+    ASSERT_TRUE(isServiceShutdownWithWait(kLazyBinderNdkUnitTestService))
+            << "Service failed to shut down";
 }
 
 TEST(NdkBinder, ForcedPersistenceTest) {
@@ -466,14 +477,12 @@
         service = nullptr;
         IPCThreadState::self()->flushCommands();
 
-        sleep(kShutdownWaitTime);
-
-        bool isRunning = isServiceRunning(kForcePersistNdkUnitTestService);
-
         if (i == 0) {
-            ASSERT_TRUE(isRunning) << "Service shut down when it shouldn't have.";
+            ASSERT_TRUE(isServiceRunning(kForcePersistNdkUnitTestService))
+                    << "Service shut down when it shouldn't have.";
         } else {
-            ASSERT_FALSE(isRunning) << "Service failed to shut down.";
+            ASSERT_TRUE(isServiceShutdownWithWait(kForcePersistNdkUnitTestService))
+                    << "Service failed to shut down";
         }
     }
 }
@@ -491,10 +500,7 @@
     service = nullptr;
     IPCThreadState::self()->flushCommands();
 
-    LOG(INFO) << "ActiveServicesCallbackTest about to sleep";
-    sleep(kShutdownWaitTime);
-
-    ASSERT_FALSE(isServiceRunning(kActiveServicesNdkUnitTestService))
+    ASSERT_TRUE(isServiceShutdownWithWait(kActiveServicesNdkUnitTestService))
             << "Service failed to shut down.";
 }
 

diff --git a/libs/binder/rust/rpcbinder/Android.bp b/libs/binder/rust/rpcbinder/Android.bp
index 2e46345..174fe8a 100644
--- a/libs/binder/rust/rpcbinder/Android.bp
+++ b/libs/binder/rust/rpcbinder/Android.bp

@@ -32,6 +32,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.compos",
+        "com.android.microfuchsia",
         "com.android.uwb",
         "com.android.virt",
     ],
@@ -60,6 +61,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.compos",
+        "com.android.microfuchsia",
         "com.android.uwb",
         "com.android.virt",
     ],
@@ -93,6 +95,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.compos",
+        "com.android.microfuchsia",
         "com.android.uwb",
         "com.android.virt",
     ],

diff --git a/libs/binder/rust/src/parcel/parcelable.rs b/libs/binder/rust/src/parcel/parcelable.rs
index 33dfe19..7f70396 100644
--- a/libs/binder/rust/src/parcel/parcelable.rs
+++ b/libs/binder/rust/src/parcel/parcelable.rs

@@ -1333,7 +1333,7 @@
         let vec = Vec::<u8>::deserialize(parcel.borrowed_ref()).unwrap();
         assert_eq!(vec, [-128i8 as u8, 127, 42, -117i8 as u8]);
 
-        let u16s = [u16::max_value(), 12_345, 42, 117];
+        let u16s = [u16::MAX, 12_345, 42, 117];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.
@@ -1348,7 +1348,7 @@
         }
 
         assert_eq!(parcel.read::<u32>().unwrap(), 4); // 4 items
-        assert_eq!(parcel.read::<u32>().unwrap(), 0xffff); // u16::max_value()
+        assert_eq!(parcel.read::<u32>().unwrap(), 0xffff); // u16::MAX
         assert_eq!(parcel.read::<u32>().unwrap(), 12345); // 12,345
         assert_eq!(parcel.read::<u32>().unwrap(), 42); // 42
         assert_eq!(parcel.read::<u32>().unwrap(), 117); // 117
@@ -1361,9 +1361,9 @@
 
         let vec = Vec::<u16>::deserialize(parcel.borrowed_ref()).unwrap();
 
-        assert_eq!(vec, [u16::max_value(), 12_345, 42, 117]);
+        assert_eq!(vec, [u16::MAX, 12_345, 42, 117]);
 
-        let i16s = [i16::max_value(), i16::min_value(), 42, -117];
+        let i16s = [i16::MAX, i16::MIN, 42, -117];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.
@@ -1378,8 +1378,8 @@
         }
 
         assert_eq!(parcel.read::<u32>().unwrap(), 4); // 4 items
-        assert_eq!(parcel.read::<u32>().unwrap(), 0x7fff); // i16::max_value()
-        assert_eq!(parcel.read::<u32>().unwrap(), 0x8000); // i16::min_value()
+        assert_eq!(parcel.read::<u32>().unwrap(), 0x7fff); // i16::MAX
+        assert_eq!(parcel.read::<u32>().unwrap(), 0x8000); // i16::MIN
         assert_eq!(parcel.read::<u32>().unwrap(), 42); // 42
         assert_eq!(parcel.read::<u32>().unwrap(), 0xff8b); // -117
 
@@ -1391,9 +1391,9 @@
 
         let vec = Vec::<i16>::deserialize(parcel.borrowed_ref()).unwrap();
 
-        assert_eq!(vec, [i16::max_value(), i16::min_value(), 42, -117]);
+        assert_eq!(vec, [i16::MAX, i16::MIN, 42, -117]);
 
-        let u32s = [u32::max_value(), 12_345, 42, 117];
+        let u32s = [u32::MAX, 12_345, 42, 117];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.
@@ -1408,7 +1408,7 @@
         }
 
         assert_eq!(parcel.read::<u32>().unwrap(), 4); // 4 items
-        assert_eq!(parcel.read::<u32>().unwrap(), 0xffffffff); // u32::max_value()
+        assert_eq!(parcel.read::<u32>().unwrap(), 0xffffffff); // u32::MAX
         assert_eq!(parcel.read::<u32>().unwrap(), 12345); // 12,345
         assert_eq!(parcel.read::<u32>().unwrap(), 42); // 42
         assert_eq!(parcel.read::<u32>().unwrap(), 117); // 117
@@ -1421,9 +1421,9 @@
 
         let vec = Vec::<u32>::deserialize(parcel.borrowed_ref()).unwrap();
 
-        assert_eq!(vec, [u32::max_value(), 12_345, 42, 117]);
+        assert_eq!(vec, [u32::MAX, 12_345, 42, 117]);
 
-        let i32s = [i32::max_value(), i32::min_value(), 42, -117];
+        let i32s = [i32::MAX, i32::MIN, 42, -117];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.
@@ -1438,8 +1438,8 @@
         }
 
         assert_eq!(parcel.read::<u32>().unwrap(), 4); // 4 items
-        assert_eq!(parcel.read::<u32>().unwrap(), 0x7fffffff); // i32::max_value()
-        assert_eq!(parcel.read::<u32>().unwrap(), 0x80000000); // i32::min_value()
+        assert_eq!(parcel.read::<u32>().unwrap(), 0x7fffffff); // i32::MAX
+        assert_eq!(parcel.read::<u32>().unwrap(), 0x80000000); // i32::MIN
         assert_eq!(parcel.read::<u32>().unwrap(), 42); // 42
         assert_eq!(parcel.read::<u32>().unwrap(), 0xffffff8b); // -117
 
@@ -1451,9 +1451,9 @@
 
         let vec = Vec::<i32>::deserialize(parcel.borrowed_ref()).unwrap();
 
-        assert_eq!(vec, [i32::max_value(), i32::min_value(), 42, -117]);
+        assert_eq!(vec, [i32::MAX, i32::MIN, 42, -117]);
 
-        let u64s = [u64::max_value(), 12_345, 42, 117];
+        let u64s = [u64::MAX, 12_345, 42, 117];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.
@@ -1469,9 +1469,9 @@
 
         let vec = Vec::<u64>::deserialize(parcel.borrowed_ref()).unwrap();
 
-        assert_eq!(vec, [u64::max_value(), 12_345, 42, 117]);
+        assert_eq!(vec, [u64::MAX, 12_345, 42, 117]);
 
-        let i64s = [i64::max_value(), i64::min_value(), 42, -117];
+        let i64s = [i64::MAX, i64::MIN, 42, -117];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.
@@ -1487,9 +1487,9 @@
 
         let vec = Vec::<i64>::deserialize(parcel.borrowed_ref()).unwrap();
 
-        assert_eq!(vec, [i64::max_value(), i64::min_value(), 42, -117]);
+        assert_eq!(vec, [i64::MAX, i64::MIN, 42, -117]);
 
-        let f32s = [std::f32::NAN, std::f32::INFINITY, 1.23456789, std::f32::EPSILON];
+        let f32s = [f32::NAN, f32::INFINITY, 1.23456789, f32::EPSILON];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.
@@ -1509,7 +1509,7 @@
         assert!(vec[0].is_nan());
         assert_eq!(vec[1..], f32s[1..]);
 
-        let f64s = [std::f64::NAN, std::f64::INFINITY, 1.234567890123456789, std::f64::EPSILON];
+        let f64s = [f64::NAN, f64::INFINITY, 1.234567890123456789, f64::EPSILON];
 
         // SAFETY: start is less than the current size of the parcel data buffer, because we haven't
         // made it any shorter since we got the position.

diff --git a/libs/binder/rust/src/proxy.rs b/libs/binder/rust/src/proxy.rs
index 340014a..04f1517 100644
--- a/libs/binder/rust/src/proxy.rs
+++ b/libs/binder/rust/src/proxy.rs

@@ -195,7 +195,7 @@
 
 impl PartialEq for SpIBinder {
     fn eq(&self, other: &Self) -> bool {
-        ptr::eq(self.0.as_ptr(), other.0.as_ptr())
+        self.cmp(other) == Ordering::Equal
     }
 }
 

diff --git a/libs/binder/rust/tests/serialization.rs b/libs/binder/rust/tests/serialization.rs
index 2b6c282..a902e96 100644
--- a/libs/binder/rust/tests/serialization.rs
+++ b/libs/binder/rust/tests/serialization.rs

@@ -124,7 +124,7 @@
         bindings::Transaction_TEST_BYTE => {
             assert_eq!(parcel.read::<i8>()?, 0);
             assert_eq!(parcel.read::<i8>()?, 1);
-            assert_eq!(parcel.read::<i8>()?, i8::max_value());
+            assert_eq!(parcel.read::<i8>()?, i8::MAX);
             // SAFETY: Just reading an extern constant.
             assert_eq!(parcel.read::<Vec<i8>>()?, unsafe { bindings::TESTDATA_I8 });
             // SAFETY: Just reading an extern constant.
@@ -133,7 +133,7 @@
 
             reply.write(&0i8)?;
             reply.write(&1i8)?;
-            reply.write(&i8::max_value())?;
+            reply.write(&i8::MAX)?;
             // SAFETY: Just reading an extern constant.
             reply.write(&unsafe { bindings::TESTDATA_I8 }[..])?;
             // SAFETY: Just reading an extern constant.
@@ -143,14 +143,14 @@
         bindings::Transaction_TEST_U16 => {
             assert_eq!(parcel.read::<u16>()?, 0);
             assert_eq!(parcel.read::<u16>()?, 1);
-            assert_eq!(parcel.read::<u16>()?, u16::max_value());
+            assert_eq!(parcel.read::<u16>()?, u16::MAX);
             // SAFETY: Just reading an extern constant.
             assert_eq!(parcel.read::<Vec<u16>>()?, unsafe { bindings::TESTDATA_CHARS });
             assert_eq!(parcel.read::<Option<Vec<u16>>>()?, None);
 
             reply.write(&0u16)?;
             reply.write(&1u16)?;
-            reply.write(&u16::max_value())?;
+            reply.write(&u16::MAX)?;
             // SAFETY: Just reading an extern constant.
             reply.write(&unsafe { bindings::TESTDATA_CHARS }[..])?;
             reply.write(&(None as Option<Vec<u16>>))?;
@@ -158,14 +158,14 @@
         bindings::Transaction_TEST_I32 => {
             assert_eq!(parcel.read::<i32>()?, 0);
             assert_eq!(parcel.read::<i32>()?, 1);
-            assert_eq!(parcel.read::<i32>()?, i32::max_value());
+            assert_eq!(parcel.read::<i32>()?, i32::MAX);
             // SAFETY: Just reading an extern constant.
             assert_eq!(parcel.read::<Vec<i32>>()?, unsafe { bindings::TESTDATA_I32 });
             assert_eq!(parcel.read::<Option<Vec<i32>>>()?, None);
 
             reply.write(&0i32)?;
             reply.write(&1i32)?;
-            reply.write(&i32::max_value())?;
+            reply.write(&i32::MAX)?;
             // SAFETY: Just reading an extern constant.
             reply.write(&unsafe { bindings::TESTDATA_I32 }[..])?;
             reply.write(&(None as Option<Vec<i32>>))?;
@@ -173,14 +173,14 @@
         bindings::Transaction_TEST_I64 => {
             assert_eq!(parcel.read::<i64>()?, 0);
             assert_eq!(parcel.read::<i64>()?, 1);
-            assert_eq!(parcel.read::<i64>()?, i64::max_value());
+            assert_eq!(parcel.read::<i64>()?, i64::MAX);
             // SAFETY: Just reading an extern constant.
             assert_eq!(parcel.read::<Vec<i64>>()?, unsafe { bindings::TESTDATA_I64 });
             assert_eq!(parcel.read::<Option<Vec<i64>>>()?, None);
 
             reply.write(&0i64)?;
             reply.write(&1i64)?;
-            reply.write(&i64::max_value())?;
+            reply.write(&i64::MAX)?;
             // SAFETY: Just reading an extern constant.
             reply.write(&unsafe { bindings::TESTDATA_I64 }[..])?;
             reply.write(&(None as Option<Vec<i64>>))?;
@@ -188,14 +188,14 @@
         bindings::Transaction_TEST_U64 => {
             assert_eq!(parcel.read::<u64>()?, 0);
             assert_eq!(parcel.read::<u64>()?, 1);
-            assert_eq!(parcel.read::<u64>()?, u64::max_value());
+            assert_eq!(parcel.read::<u64>()?, u64::MAX);
             // SAFETY: Just reading an extern constant.
             assert_eq!(parcel.read::<Vec<u64>>()?, unsafe { bindings::TESTDATA_U64 });
             assert_eq!(parcel.read::<Option<Vec<u64>>>()?, None);
 
             reply.write(&0u64)?;
             reply.write(&1u64)?;
-            reply.write(&u64::max_value())?;
+            reply.write(&u64::MAX)?;
             // SAFETY: Just reading an extern constant.
             reply.write(&unsafe { bindings::TESTDATA_U64 }[..])?;
             reply.write(&(None as Option<Vec<u64>>))?;

diff --git a/libs/binder/servicedispatcher.cpp b/libs/binder/servicedispatcher.cpp
index 18b178b..be99065 100644
--- a/libs/binder/servicedispatcher.cpp
+++ b/libs/binder/servicedispatcher.cpp

@@ -123,8 +123,11 @@
         // We can't send BpBinder for regular binder over RPC.
         return android::binder::Status::fromStatusT(android::INVALID_OPERATION);
     }
-    android::binder::Status checkService(const std::string&,
-                                         android::sp<android::IBinder>*) override {
+    android::binder::Status getService2(const std::string&, android::os::Service*) override {
+        // We can't send BpBinder for regular binder over RPC.
+        return android::binder::Status::fromStatusT(android::INVALID_OPERATION);
+    }
+    android::binder::Status checkService(const std::string&, android::os::Service*) override {
         // We can't send BpBinder for regular binder over RPC.
         return android::binder::Status::fromStatusT(android::INVALID_OPERATION);
     }

diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 4c7684c..0e653af 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp

@@ -42,12 +42,39 @@
     defaults: ["binder_test_defaults"],
     header_libs: ["libbinder_headers"],
     srcs: ["binderDriverInterfaceTest.cpp"],
+    shared_libs: [
+        "libbinder",
+    ],
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
 }
 
+cc_test {
+    name: "binderCacheUnitTest",
+    target: {
+        darwin: {
+            enabled: false,
+        },
+    },
+    srcs: [
+        "binderCacheUnitTest.cpp",
+    ],
+    shared_libs: [
+        "liblog",
+        "libbinder",
+        "libcutils",
+        "libutils",
+    ],
+    static_libs: [
+        "libfakeservicemanager",
+    ],
+    defaults: ["libbinder_client_cache_flag"],
+    test_suites: ["general-tests"],
+    require_root: true,
+}
+
 // unit test only, which can run on host and doesn't use /dev/binder
 cc_test {
     name: "binderUnitTest",
@@ -127,13 +154,14 @@
         "libbase",
         "libbinder",
         "liblog",
+        "libprocessgroup",
         "libutils",
     ],
     static_libs: [
         "libgmock",
     ],
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
     require_root: true,
@@ -235,6 +263,16 @@
         "binder_test_defaults",
     ],
 
+    compile_multilib: "both",
+    multilib: {
+        lib32: {
+            suffix: "32",
+        },
+        lib64: {
+            suffix: "64",
+        },
+    },
+
     static_libs: [
         "libbinder_test_utils",
         "libbinder_tls_static",
@@ -267,7 +305,6 @@
     defaults: [
         "binderRpcTest_common_defaults",
     ],
-    compile_multilib: "first",
 
     srcs: [
         "binderRpcTest.cpp",
@@ -692,7 +729,7 @@
         "libutils",
     ],
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
     require_root: true,
@@ -749,7 +786,7 @@
     ],
 
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
     require_root: true,
@@ -875,6 +912,7 @@
             enabled: false,
         },
     },
+    corpus: ["corpus/*"],
     fuzz_config: {
         cc: [
             "smoreland@google.com",

diff --git a/libs/binder/tests/binderCacheUnitTest.cpp b/libs/binder/tests/binderCacheUnitTest.cpp
new file mode 100644
index 0000000..482d197
--- /dev/null
+++ b/libs/binder/tests/binderCacheUnitTest.cpp

@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2024 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 <gtest/gtest.h>
+
+#include <android-base/logging.h>
+#include <android/os/IServiceManager.h>
+#include <binder/IBinder.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/IServiceManagerUnitTestHelper.h>
+#include "fakeservicemanager/FakeServiceManager.h"
+
+#include <sys/prctl.h>
+#include <thread>
+
+using namespace android;
+
+#ifdef LIBBINDER_CLIENT_CACHE
+constexpr bool kUseLibbinderCache = true;
+#else
+constexpr bool kUseLibbinderCache = false;
+#endif
+
+// A service name which is in the static list of cachable services
+const String16 kCachedServiceName = String16("isub");
+
+#define EXPECT_OK(status)                 \
+    do {                                  \
+        binder::Status stat = (status);   \
+        EXPECT_TRUE(stat.isOk()) << stat; \
+    } while (false)
+
+const String16 kServerName = String16("binderCacheUnitTest");
+
+class FooBar : public BBinder {
+public:
+    status_t onTransact(uint32_t, const Parcel&, Parcel*, uint32_t) {
+        // exit the server
+        std::thread([] { exit(EXIT_FAILURE); }).detach();
+        return OK;
+    }
+    void killServer(sp<IBinder> binder) {
+        Parcel data, reply;
+        binder->transact(0, data, &reply, 0);
+    }
+};
+
+class MockAidlServiceManager : public os::IServiceManagerDefault {
+public:
+    MockAidlServiceManager() : innerSm() {}
+
+    binder::Status checkService(const ::std::string& name, os::Service* _out) override {
+        sp<IBinder> binder = innerSm.getService(String16(name.c_str()));
+        *_out = os::Service::make<os::Service::Tag::binder>(binder);
+        return binder::Status::ok();
+    }
+
+    binder::Status addService(const std::string& name, const sp<IBinder>& service,
+                              bool allowIsolated, int32_t dumpPriority) override {
+        return binder::Status::fromStatusT(
+                innerSm.addService(String16(name.c_str()), service, allowIsolated, dumpPriority));
+    }
+
+    FakeServiceManager innerSm;
+};
+
+class LibbinderCacheTest : public ::testing::Test {
+protected:
+    void SetUp() override {
+        sp<MockAidlServiceManager> sm = sp<MockAidlServiceManager>::make();
+        mServiceManager = getServiceManagerShimFromAidlServiceManagerForTests(sm);
+    }
+
+    void TearDown() override {}
+
+public:
+    void cacheAndConfirmCacheHit(const sp<IBinder>& binder1, const sp<IBinder>& binder2) {
+        // Add a service
+        EXPECT_EQ(OK, mServiceManager->addService(kCachedServiceName, binder1));
+        // Get the service. This caches it.
+        sp<IBinder> result = mServiceManager->checkService(kCachedServiceName);
+        ASSERT_EQ(binder1, result);
+
+        // Add the different binder and replace the service.
+        // The cache should still hold the original binder.
+        EXPECT_EQ(OK, mServiceManager->addService(kCachedServiceName, binder2));
+
+        result = mServiceManager->checkService(kCachedServiceName);
+        if (kUseLibbinderCache) {
+            // If cache is enabled, we should get the binder to Service Manager.
+            EXPECT_EQ(binder1, result);
+        } else {
+            // If cache is disabled, then we should get the newer binder
+            EXPECT_EQ(binder2, result);
+        }
+    }
+
+    sp<android::IServiceManager> mServiceManager;
+};
+
+TEST_F(LibbinderCacheTest, AddLocalServiceAndConfirmCacheHit) {
+    sp<IBinder> binder1 = sp<BBinder>::make();
+    sp<IBinder> binder2 = sp<BBinder>::make();
+
+    cacheAndConfirmCacheHit(binder1, binder2);
+}
+
+TEST_F(LibbinderCacheTest, AddRemoteServiceAndConfirmCacheHit) {
+    sp<IBinder> binder1 = defaultServiceManager()->checkService(kServerName);
+    ASSERT_NE(binder1, nullptr);
+    sp<IBinder> binder2 = IInterface::asBinder(mServiceManager);
+
+    cacheAndConfirmCacheHit(binder1, binder2);
+}
+
+TEST_F(LibbinderCacheTest, RemoveFromCacheOnServerDeath) {
+    sp<IBinder> binder1 = defaultServiceManager()->checkService(kServerName);
+    FooBar foo = FooBar();
+
+    EXPECT_EQ(OK, mServiceManager->addService(kCachedServiceName, binder1));
+
+    // Check Service, this caches the binder
+    sp<IBinder> result = mServiceManager->checkService(kCachedServiceName);
+    ASSERT_EQ(binder1, result);
+
+    // Kill the server, this should remove from cache.
+    pid_t pid;
+    ASSERT_EQ(OK, binder1->getDebugPid(&pid));
+    foo.killServer(binder1);
+    system(("kill -9 " + std::to_string(pid)).c_str());
+
+    sp<IBinder> binder2 = sp<BBinder>::make();
+
+    // Add new service with the same name.
+    // This will replace the service in FakeServiceManager.
+    EXPECT_EQ(OK, mServiceManager->addService(kCachedServiceName, binder2));
+
+    // Confirm that new service is returned instead of old.
+    sp<IBinder> result2 = mServiceManager->checkService(kCachedServiceName);
+    ASSERT_EQ(binder2, result2);
+}
+
+TEST_F(LibbinderCacheTest, NullBinderNotCached) {
+    sp<IBinder> binder1 = nullptr;
+    sp<IBinder> binder2 = sp<BBinder>::make();
+
+    // Check for a cacheble service which isn't registered.
+    // FakeServiceManager should return nullptr.
+    // This shouldn't be cached.
+    sp<IBinder> result = mServiceManager->checkService(kCachedServiceName);
+    ASSERT_EQ(binder1, result);
+
+    // Add the same service
+    EXPECT_EQ(OK, mServiceManager->addService(kCachedServiceName, binder2));
+
+    // This should return the newly added service.
+    result = mServiceManager->checkService(kCachedServiceName);
+    EXPECT_EQ(binder2, result);
+}
+
+TEST_F(LibbinderCacheTest, DoNotCacheServiceNotInList) {
+    sp<IBinder> binder1 = sp<BBinder>::make();
+    sp<IBinder> binder2 = sp<BBinder>::make();
+    String16 serviceName = String16("NewLibbinderCacheTest");
+    // Add a service
+    EXPECT_EQ(OK, mServiceManager->addService(serviceName, binder1));
+    // Get the service. This shouldn't caches it.
+    sp<IBinder> result = mServiceManager->checkService(serviceName);
+    ASSERT_EQ(binder1, result);
+
+    // Add the different binder and replace the service.
+    EXPECT_EQ(OK, mServiceManager->addService(serviceName, binder2));
+
+    // Confirm that we get the new service
+    result = mServiceManager->checkService(serviceName);
+    EXPECT_EQ(binder2, result);
+}
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+
+    if (fork() == 0) {
+        prctl(PR_SET_PDEATHSIG, SIGHUP);
+
+        // Start a FooBar service and add it to the servicemanager.
+        sp<IBinder> server = new FooBar();
+        defaultServiceManager()->addService(kServerName, server);
+
+        IPCThreadState::self()->joinThreadPool(true);
+        exit(1); // should not reach
+    }
+
+    status_t err = ProcessState::self()->setThreadPoolMaxThreadCount(3);
+    ProcessState::self()->startThreadPool();
+    CHECK_EQ(ProcessState::self()->isThreadPoolStarted(), true);
+    CHECK_GT(ProcessState::self()->getThreadPoolMaxTotalThreadCount(), 0);
+
+    auto binder = defaultServiceManager()->waitForService(kServerName);
+    CHECK_NE(nullptr, binder.get());
+    return RUN_ALL_TESTS();
+}

diff --git a/libs/binder/tests/binderDriverInterfaceTest.cpp b/libs/binder/tests/binderDriverInterfaceTest.cpp
index 7be4f21..af82860 100644
--- a/libs/binder/tests/binderDriverInterfaceTest.cpp
+++ b/libs/binder/tests/binderDriverInterfaceTest.cpp

@@ -20,12 +20,15 @@
 #include <stdlib.h>
 
 #include <binder/IBinder.h>
+#include <binder/ProcessState.h>
 #include <gtest/gtest.h>
 #include <linux/android/binder.h>
 #include <poll.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
 
+#include "../binder_module.h"
+
 #define BINDER_DEV_NAME "/dev/binder"
 
 testing::Environment* binder_env;
@@ -365,6 +368,251 @@
     binderTestReadEmpty();
 }
 
+TEST_F(BinderDriverInterfaceTest, RequestFrozenNotification) {
+    if (!android::ProcessState::isDriverFeatureEnabled(
+                android::ProcessState::DriverFeature::FREEZE_NOTIFICATION)) {
+        GTEST_SKIP() << "Skipping test for kernels that support freeze notification";
+        return;
+    }
+    binder_uintptr_t cookie = 1234;
+    struct {
+        uint32_t cmd0;
+        uint32_t arg0;
+        uint32_t cmd1;
+        struct binder_handle_cookie arg1;
+    } __attribute__((packed)) bc1 = {
+            .cmd0 = BC_INCREFS,
+            .arg0 = 0,
+            .cmd1 = BC_REQUEST_FREEZE_NOTIFICATION,
+            .arg1 =
+                    {
+                            .handle = 0,
+                            .cookie = cookie,
+                    },
+    };
+    struct {
+        uint32_t cmd0;
+        // Expecting a BR_FROZEN_BINDER since BC_REQUEST_FREEZE_NOTIFICATION
+        // above should lead to an immediate notification of the current state.
+        uint32_t cmd1;
+        struct binder_frozen_state_info arg1;
+        uint32_t pad[16];
+    } __attribute__((packed)) br1;
+    struct {
+        uint32_t cmd2;
+        binder_uintptr_t arg2;
+        uint32_t cmd3;
+        struct binder_handle_cookie arg3;
+        uint32_t cmd4;
+        uint32_t arg4;
+    } __attribute__((packed)) bc2 = {
+            // Tell kernel that userspace has done handling BR_FROZEN_BINDER.
+            .cmd2 = BC_FREEZE_NOTIFICATION_DONE,
+            .arg2 = cookie,
+            .cmd3 = BC_CLEAR_FREEZE_NOTIFICATION,
+            .arg3 =
+                    {
+                            .handle = 0,
+                            .cookie = cookie,
+                    },
+            .cmd4 = BC_DECREFS,
+            .arg4 = 0,
+    };
+    struct {
+        uint32_t cmd2;
+        uint32_t cmd3;
+        binder_uintptr_t arg3;
+        uint32_t pad[16];
+    } __attribute__((packed)) br2;
+
+    struct binder_write_read bwr1 = binder_write_read();
+    bwr1.write_buffer = (uintptr_t)&bc1;
+    bwr1.write_size = sizeof(bc1);
+    bwr1.read_buffer = (uintptr_t)&br1;
+    bwr1.read_size = sizeof(br1);
+    binderTestIoctl(BINDER_WRITE_READ, &bwr1);
+    EXPECT_EQ(sizeof(bc1), bwr1.write_consumed);
+    EXPECT_EQ(sizeof(br1) - sizeof(br1.pad), bwr1.read_consumed);
+    EXPECT_EQ(BR_NOOP, br1.cmd0);
+    ASSERT_EQ(BR_FROZEN_BINDER, br1.cmd1);
+    EXPECT_FALSE(br1.arg1.is_frozen);
+
+    struct binder_write_read bwr2 = binder_write_read();
+    bwr2.write_buffer = (uintptr_t)&bc2;
+    bwr2.write_size = sizeof(bc2);
+    bwr2.read_buffer = (uintptr_t)&br2;
+    bwr2.read_size = sizeof(br2);
+    binderTestIoctl(BINDER_WRITE_READ, &bwr2);
+    EXPECT_EQ(sizeof(bc2), bwr2.write_consumed);
+    EXPECT_EQ(sizeof(br2) - sizeof(br2.pad), bwr2.read_consumed);
+    EXPECT_EQ(BR_NOOP, br2.cmd2);
+    EXPECT_EQ(BR_CLEAR_FREEZE_NOTIFICATION_DONE, br2.cmd3);
+    EXPECT_EQ(cookie, br2.arg3);
+
+    binderTestReadEmpty();
+}
+
+TEST_F(BinderDriverInterfaceTest, OverwritePendingFrozenNotification) {
+    if (!android::ProcessState::isDriverFeatureEnabled(
+                android::ProcessState::DriverFeature::FREEZE_NOTIFICATION)) {
+        GTEST_SKIP() << "Skipping test for kernels that support freeze notification";
+        return;
+    }
+    binder_uintptr_t cookie = 1234;
+    struct {
+        uint32_t cmd0;
+        uint32_t arg0;
+        uint32_t cmd1;
+        struct binder_handle_cookie arg1;
+        uint32_t cmd2;
+        struct binder_handle_cookie arg2;
+        uint32_t cmd3;
+        uint32_t arg3;
+    } __attribute__((packed)) bc = {
+            .cmd0 = BC_INCREFS,
+            .arg0 = 0,
+            .cmd1 = BC_REQUEST_FREEZE_NOTIFICATION,
+            // This BC_REQUEST_FREEZE_NOTIFICATION should lead to a pending
+            // frozen notification inserted into the queue.
+            .arg1 =
+                    {
+                            .handle = 0,
+                            .cookie = cookie,
+                    },
+            // Send BC_CLEAR_FREEZE_NOTIFICATION before the above frozen
+            // notification has a chance of being sent. The notification should
+            // be overwritten. Userspace is expected to only receive
+            // BR_CLEAR_FREEZE_NOTIFICATION_DONE.
+            .cmd2 = BC_CLEAR_FREEZE_NOTIFICATION,
+            .arg2 =
+                    {
+                            .handle = 0,
+                            .cookie = cookie,
+                    },
+            .cmd3 = BC_DECREFS,
+            .arg3 = 0,
+    };
+    struct {
+        uint32_t cmd0;
+        uint32_t cmd1;
+        binder_uintptr_t arg1;
+        uint32_t pad[16];
+    } __attribute__((packed)) br;
+    struct binder_write_read bwr = binder_write_read();
+
+    bwr.write_buffer = (uintptr_t)&bc;
+    bwr.write_size = sizeof(bc);
+    bwr.read_buffer = (uintptr_t)&br;
+    bwr.read_size = sizeof(br);
+
+    binderTestIoctl(BINDER_WRITE_READ, &bwr);
+    EXPECT_EQ(sizeof(bc), bwr.write_consumed);
+    EXPECT_EQ(sizeof(br) - sizeof(br.pad), bwr.read_consumed);
+    EXPECT_EQ(BR_NOOP, br.cmd0);
+    EXPECT_EQ(BR_CLEAR_FREEZE_NOTIFICATION_DONE, br.cmd1);
+    EXPECT_EQ(cookie, br.arg1);
+    binderTestReadEmpty();
+}
+
+TEST_F(BinderDriverInterfaceTest, ResendFrozenNotification) {
+    if (!android::ProcessState::isDriverFeatureEnabled(
+                android::ProcessState::DriverFeature::FREEZE_NOTIFICATION)) {
+        GTEST_SKIP() << "Skipping test for kernels that support freeze notification";
+        return;
+    }
+    binder_uintptr_t cookie = 1234;
+    struct {
+        uint32_t cmd0;
+        uint32_t arg0;
+        uint32_t cmd1;
+        struct binder_handle_cookie arg1;
+    } __attribute__((packed)) bc1 = {
+            .cmd0 = BC_INCREFS,
+            .arg0 = 0,
+            .cmd1 = BC_REQUEST_FREEZE_NOTIFICATION,
+            .arg1 =
+                    {
+                            .handle = 0,
+                            .cookie = cookie,
+                    },
+    };
+    struct {
+        uint32_t cmd0;
+        uint32_t cmd1;
+        struct binder_frozen_state_info arg1;
+        uint32_t pad[16];
+    } __attribute__((packed)) br1;
+    struct {
+        uint32_t cmd2;
+        struct binder_handle_cookie arg2;
+    } __attribute__((packed)) bc2 = {
+            // Clear the notification before acknowledging the in-flight
+            // BR_FROZEN_BINDER. Kernel should hold off sending
+            // BR_CLEAR_FREEZE_NOTIFICATION_DONE until the acknowledgement
+            // reaches kernel.
+            .cmd2 = BC_CLEAR_FREEZE_NOTIFICATION,
+            .arg2 =
+                    {
+                            .handle = 0,
+                            .cookie = cookie,
+                    },
+    };
+    struct {
+        uint32_t pad[16];
+    } __attribute__((packed)) br2;
+    struct {
+        uint32_t cmd3;
+        binder_uintptr_t arg3;
+        uint32_t cmd4;
+        uint32_t arg4;
+    } __attribute__((packed)) bc3 = {
+            // Send the acknowledgement. Now the kernel should send out
+            // BR_CLEAR_FREEZE_NOTIFICATION_DONE.
+            .cmd3 = BC_FREEZE_NOTIFICATION_DONE,
+            .arg3 = cookie,
+            .cmd4 = BC_DECREFS,
+            .arg4 = 0,
+    };
+    struct {
+        uint32_t cmd2;
+        uint32_t cmd3;
+        binder_uintptr_t arg3;
+        uint32_t pad[16];
+    } __attribute__((packed)) br3;
+
+    struct binder_write_read bwr1 = binder_write_read();
+    bwr1.write_buffer = (uintptr_t)&bc1;
+    bwr1.write_size = sizeof(bc1);
+    bwr1.read_buffer = (uintptr_t)&br1;
+    bwr1.read_size = sizeof(br1);
+    binderTestIoctl(BINDER_WRITE_READ, &bwr1);
+    EXPECT_EQ(sizeof(bc1), bwr1.write_consumed);
+    EXPECT_EQ(sizeof(br1) - sizeof(br1.pad), bwr1.read_consumed);
+    EXPECT_EQ(BR_NOOP, br1.cmd0);
+    ASSERT_EQ(BR_FROZEN_BINDER, br1.cmd1);
+    EXPECT_FALSE(br1.arg1.is_frozen);
+
+    struct binder_write_read bwr2 = binder_write_read();
+    bwr2.write_buffer = (uintptr_t)&bc2;
+    bwr2.write_size = sizeof(bc2);
+    bwr2.read_buffer = (uintptr_t)&br2;
+    bwr2.read_size = sizeof(br2);
+    binderTestIoctlSuccessOrError(BINDER_WRITE_READ, &bwr2, EAGAIN);
+    binderTestReadEmpty();
+
+    struct binder_write_read bwr3 = binder_write_read();
+    bwr3.write_buffer = (uintptr_t)&bc3;
+    bwr3.write_size = sizeof(bc3);
+    bwr3.read_buffer = (uintptr_t)&br3;
+    bwr3.read_size = sizeof(br3);
+    binderTestIoctl(BINDER_WRITE_READ, &bwr3);
+    EXPECT_EQ(sizeof(bc3), bwr3.write_consumed);
+    EXPECT_EQ(sizeof(br3) - sizeof(br3.pad), bwr3.read_consumed);
+    EXPECT_EQ(BR_CLEAR_FREEZE_NOTIFICATION_DONE, br3.cmd3);
+    EXPECT_EQ(cookie, br3.arg3);
+    binderTestReadEmpty();
+}
+
 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
 

diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index 9b1ba01..bcab6de 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp

@@ -27,6 +27,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+#include <android-base/logging.h>
 #include <android-base/properties.h>
 #include <android-base/result-gmock.h>
 #include <binder/Binder.h>
@@ -39,6 +40,8 @@
 #include <binder/RpcSession.h>
 #include <binder/Status.h>
 #include <binder/unique_fd.h>
+#include <input/BlockingQueue.h>
+#include <processgroup/processgroup.h>
 #include <utils/Flattenable.h>
 
 #include <linux/sched.h>
@@ -57,6 +60,7 @@
 using android::base::testing::HasValue;
 using android::binder::Status;
 using android::binder::unique_fd;
+using std::chrono_literals::operator""ms;
 using testing::ExplainMatchResult;
 using testing::Matcher;
 using testing::Not;
@@ -115,6 +119,8 @@
     BINDER_LIB_TEST_NOP_TRANSACTION_WAIT,
     BINDER_LIB_TEST_GETPID,
     BINDER_LIB_TEST_GETUID,
+    BINDER_LIB_TEST_LISTEN_FOR_FROZEN_STATE_CHANGE,
+    BINDER_LIB_TEST_CONSUME_STATE_CHANGE_EVENTS,
     BINDER_LIB_TEST_ECHO_VECTOR,
     BINDER_LIB_TEST_GET_NON_BLOCKING_FD,
     BINDER_LIB_TEST_REJECT_OBJECTS,
@@ -247,6 +253,43 @@
         sp<IBinder> m_server;
 };
 
+class TestFrozenStateChangeCallback : public IBinder::FrozenStateChangeCallback {
+public:
+    BlockingQueue<std::pair<const wp<IBinder>, State>> events;
+
+    virtual void onStateChanged(const wp<IBinder>& who, State state) {
+        events.push(std::make_pair(who, state));
+    }
+
+    void ensureFrozenEventReceived() {
+        auto event = events.popWithTimeout(500ms);
+        ASSERT_TRUE(event.has_value());
+        EXPECT_EQ(State::FROZEN, event->second); // isFrozen should be true
+        EXPECT_EQ(0u, events.size());
+    }
+
+    void ensureUnfrozenEventReceived() {
+        auto event = events.popWithTimeout(500ms);
+        ASSERT_TRUE(event.has_value());
+        EXPECT_EQ(State::UNFROZEN, event->second); // isFrozen should be false
+        EXPECT_EQ(0u, events.size());
+    }
+
+    std::vector<bool> getAllAndClear() {
+        std::vector<bool> results;
+        while (true) {
+            auto event = events.popWithTimeout(0ms);
+            if (!event.has_value()) {
+                break;
+            }
+            results.push_back(event->second == State::FROZEN);
+        }
+        return results;
+    }
+
+    sp<IBinder> binder;
+};
+
 class BinderLibTest : public ::testing::Test {
     public:
         virtual void SetUp() {
@@ -291,6 +334,51 @@
             EXPECT_EQ(1, ret);
         }
 
+        bool checkFreezeSupport() {
+            std::ifstream freezer_file("/sys/fs/cgroup/uid_0/cgroup.freeze");
+            // Pass test on devices where the cgroup v2 freezer is not supported
+            if (freezer_file.fail()) {
+                return false;
+            }
+            return IPCThreadState::self()->freeze(getpid(), false, 0) == NO_ERROR;
+        }
+
+        bool checkFreezeAndNotificationSupport() {
+            if (!checkFreezeSupport()) {
+                return false;
+            }
+            return ProcessState::isDriverFeatureEnabled(
+                    ProcessState::DriverFeature::FREEZE_NOTIFICATION);
+        }
+
+        bool getBinderPid(int32_t* pid, sp<IBinder> server) {
+            Parcel data, replypid;
+            if (server->transact(BINDER_LIB_TEST_GETPID, data, &replypid) != NO_ERROR) {
+                ALOGE("BINDER_LIB_TEST_GETPID failed");
+                return false;
+            }
+            *pid = replypid.readInt32();
+            if (*pid <= 0) {
+                ALOGE("pid should be greater than zero");
+                return false;
+            }
+            return true;
+        }
+
+        void freezeProcess(int32_t pid) {
+            EXPECT_EQ(NO_ERROR, IPCThreadState::self()->freeze(pid, true, 1000));
+        }
+
+        void unfreezeProcess(int32_t pid) {
+            EXPECT_EQ(NO_ERROR, IPCThreadState::self()->freeze(pid, false, 0));
+        }
+
+        void removeCallbackAndValidateNoEvent(sp<IBinder> binder,
+                                              sp<TestFrozenStateChangeCallback> callback) {
+            EXPECT_THAT(binder->removeFrozenStateChangeCallback(callback), StatusEq(NO_ERROR));
+            EXPECT_EQ(0u, callback->events.size());
+        }
+
         sp<IBinder> m_server;
 };
 
@@ -516,29 +604,18 @@
 }
 
 TEST_F(BinderLibTest, Freeze) {
-    Parcel data, reply, replypid;
-    std::ifstream freezer_file("/sys/fs/cgroup/uid_0/cgroup.freeze");
-
-    // Pass test on devices where the cgroup v2 freezer is not supported
-    if (freezer_file.fail()) {
-        GTEST_SKIP();
+    if (!checkFreezeSupport()) {
+        GTEST_SKIP() << "Skipping test for kernels that do not support proceess freezing";
         return;
     }
-
+    Parcel data, reply, replypid;
     EXPECT_THAT(m_server->transact(BINDER_LIB_TEST_GETPID, data, &replypid), StatusEq(NO_ERROR));
     int32_t pid = replypid.readInt32();
     for (int i = 0; i < 10; i++) {
         EXPECT_EQ(NO_ERROR, m_server->transact(BINDER_LIB_TEST_NOP_TRANSACTION_WAIT, data, &reply, TF_ONE_WAY));
     }
 
-    // Pass test on devices where BINDER_FREEZE ioctl is not supported
-    int ret = IPCThreadState::self()->freeze(pid, false, 0);
-    if (ret == -EINVAL) {
-        GTEST_SKIP();
-        return;
-    }
-    EXPECT_EQ(NO_ERROR, ret);
-
+    EXPECT_EQ(NO_ERROR, IPCThreadState::self()->freeze(pid, false, 0));
     EXPECT_EQ(-EAGAIN, IPCThreadState::self()->freeze(pid, true, 0));
 
     // b/268232063 - succeeds ~0.08% of the time
@@ -835,6 +912,199 @@
     EXPECT_THAT(callback->getResult(), StatusEq(NO_ERROR));
 }
 
+TEST_F(BinderLibTest, ReturnErrorIfKernelDoesNotSupportFreezeNotification) {
+    if (ProcessState::isDriverFeatureEnabled(ProcessState::DriverFeature::FREEZE_NOTIFICATION)) {
+        GTEST_SKIP() << "Skipping test for kernels that support FREEZE_NOTIFICATION";
+        return;
+    }
+    sp<TestFrozenStateChangeCallback> callback = sp<TestFrozenStateChangeCallback>::make();
+    sp<IBinder> binder = addServer();
+    ASSERT_NE(nullptr, binder);
+    ASSERT_EQ(nullptr, binder->localBinder());
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback), StatusEq(INVALID_OPERATION));
+}
+
+TEST_F(BinderLibTest, FrozenStateChangeNotificatiion) {
+    if (!checkFreezeAndNotificationSupport()) {
+        GTEST_SKIP() << "Skipping test for kernels that do not support FREEZE_NOTIFICATION";
+        return;
+    }
+    sp<TestFrozenStateChangeCallback> callback = sp<TestFrozenStateChangeCallback>::make();
+    sp<IBinder> binder = addServer();
+    ASSERT_NE(nullptr, binder);
+    int32_t pid;
+    ASSERT_TRUE(getBinderPid(&pid, binder));
+
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback), StatusEq(NO_ERROR));
+    // Expect current state (unfrozen) to be delivered immediately.
+    callback->ensureUnfrozenEventReceived();
+    // Check that the process hasn't died otherwise there's a risk of freezing
+    // the wrong process.
+    EXPECT_EQ(OK, binder->pingBinder());
+    freezeProcess(pid);
+    callback->ensureFrozenEventReceived();
+    unfreezeProcess(pid);
+    callback->ensureUnfrozenEventReceived();
+    removeCallbackAndValidateNoEvent(binder, callback);
+}
+
+TEST_F(BinderLibTest, AddFrozenCallbackWhenFrozen) {
+    if (!checkFreezeAndNotificationSupport()) {
+        GTEST_SKIP() << "Skipping test for kernels that do not support FREEZE_NOTIFICATION";
+        return;
+    }
+    sp<TestFrozenStateChangeCallback> callback = sp<TestFrozenStateChangeCallback>::make();
+    sp<IBinder> binder = addServer();
+    ASSERT_NE(nullptr, binder);
+    int32_t pid;
+    ASSERT_TRUE(getBinderPid(&pid, binder));
+
+    // Check that the process hasn't died otherwise there's a risk of freezing
+    // the wrong process.
+    EXPECT_EQ(OK, binder->pingBinder());
+    freezeProcess(pid);
+    // Add the callback while the target process is frozen.
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback), StatusEq(NO_ERROR));
+    callback->ensureFrozenEventReceived();
+    unfreezeProcess(pid);
+    callback->ensureUnfrozenEventReceived();
+    removeCallbackAndValidateNoEvent(binder, callback);
+
+    // Check that the process hasn't died otherwise there's a risk of freezing
+    // the wrong process.
+    EXPECT_EQ(OK, binder->pingBinder());
+    freezeProcess(pid);
+    unfreezeProcess(pid);
+    // Make sure no callback happens since the listener has been removed.
+    EXPECT_EQ(0u, callback->events.size());
+}
+
+TEST_F(BinderLibTest, NoFrozenNotificationAfterCallbackRemoval) {
+    if (!checkFreezeAndNotificationSupport()) {
+        GTEST_SKIP() << "Skipping test for kernels that do not support FREEZE_NOTIFICATION";
+        return;
+    }
+    sp<TestFrozenStateChangeCallback> callback = sp<TestFrozenStateChangeCallback>::make();
+    sp<IBinder> binder = addServer();
+    ASSERT_NE(nullptr, binder);
+    int32_t pid;
+    ASSERT_TRUE(getBinderPid(&pid, binder));
+
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback), StatusEq(NO_ERROR));
+    callback->ensureUnfrozenEventReceived();
+    removeCallbackAndValidateNoEvent(binder, callback);
+
+    // Make sure no callback happens after the listener is removed.
+    freezeProcess(pid);
+    unfreezeProcess(pid);
+    EXPECT_EQ(0u, callback->events.size());
+}
+
+TEST_F(BinderLibTest, MultipleFrozenStateChangeCallbacks) {
+    if (!checkFreezeAndNotificationSupport()) {
+        GTEST_SKIP() << "Skipping test for kernels that do not support FREEZE_NOTIFICATION";
+        return;
+    }
+    sp<TestFrozenStateChangeCallback> callback1 = sp<TestFrozenStateChangeCallback>::make();
+    sp<TestFrozenStateChangeCallback> callback2 = sp<TestFrozenStateChangeCallback>::make();
+    sp<IBinder> binder = addServer();
+    ASSERT_NE(nullptr, binder);
+    int32_t pid;
+    ASSERT_TRUE(getBinderPid(&pid, binder));
+
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback1), StatusEq(NO_ERROR));
+    // Expect current state (unfrozen) to be delivered immediately.
+    callback1->ensureUnfrozenEventReceived();
+
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback2), StatusEq(NO_ERROR));
+    // Expect current state (unfrozen) to be delivered immediately.
+    callback2->ensureUnfrozenEventReceived();
+
+    freezeProcess(pid);
+    callback1->ensureFrozenEventReceived();
+    callback2->ensureFrozenEventReceived();
+
+    removeCallbackAndValidateNoEvent(binder, callback1);
+    unfreezeProcess(pid);
+    EXPECT_EQ(0u, callback1->events.size());
+    callback2->ensureUnfrozenEventReceived();
+    removeCallbackAndValidateNoEvent(binder, callback2);
+
+    freezeProcess(pid);
+    EXPECT_EQ(0u, callback2->events.size());
+}
+
+TEST_F(BinderLibTest, RemoveThenAddFrozenStateChangeCallbacks) {
+    if (!checkFreezeAndNotificationSupport()) {
+        GTEST_SKIP() << "Skipping test for kernels that do not support FREEZE_NOTIFICATION";
+        return;
+    }
+    sp<TestFrozenStateChangeCallback> callback = sp<TestFrozenStateChangeCallback>::make();
+    sp<IBinder> binder = addServer();
+    ASSERT_NE(nullptr, binder);
+    int32_t pid;
+    ASSERT_TRUE(getBinderPid(&pid, binder));
+
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback), StatusEq(NO_ERROR));
+    // Expect current state (unfrozen) to be delivered immediately.
+    callback->ensureUnfrozenEventReceived();
+    removeCallbackAndValidateNoEvent(binder, callback);
+
+    EXPECT_THAT(binder->addFrozenStateChangeCallback(callback), StatusEq(NO_ERROR));
+    callback->ensureUnfrozenEventReceived();
+}
+
+TEST_F(BinderLibTest, CoalesceFreezeCallbacksWhenListenerIsFrozen) {
+    if (!checkFreezeAndNotificationSupport()) {
+        GTEST_SKIP() << "Skipping test for kernels that do not support FREEZE_NOTIFICATION";
+        return;
+    }
+    sp<IBinder> binder = addServer();
+    sp<IBinder> listener = addServer();
+    ASSERT_NE(nullptr, binder);
+    ASSERT_NE(nullptr, listener);
+    int32_t pid, listenerPid;
+    ASSERT_TRUE(getBinderPid(&pid, binder));
+    ASSERT_TRUE(getBinderPid(&listenerPid, listener));
+
+    // Ask the listener process to register for state change callbacks.
+    {
+        Parcel data, reply;
+        data.writeStrongBinder(binder);
+        ASSERT_THAT(listener->transact(BINDER_LIB_TEST_LISTEN_FOR_FROZEN_STATE_CHANGE, data,
+                                       &reply),
+                    StatusEq(NO_ERROR));
+    }
+    // Freeze the listener process.
+    freezeProcess(listenerPid);
+    createProcessGroup(getuid(), listenerPid);
+    ASSERT_TRUE(SetProcessProfiles(getuid(), listenerPid, {"Frozen"}));
+    // Repeatedly flip the target process between frozen and unfrozen states.
+    for (int i = 0; i < 1000; i++) {
+        usleep(50);
+        unfreezeProcess(pid);
+        usleep(50);
+        freezeProcess(pid);
+    }
+    // Unfreeze the listener process. Now it should receive the frozen state
+    // change notifications.
+    ASSERT_TRUE(SetProcessProfiles(getuid(), listenerPid, {"Unfrozen"}));
+    unfreezeProcess(listenerPid);
+    // Wait for 500ms to give the process enough time to wake up and handle
+    // notifications.
+    usleep(500 * 1000);
+    {
+        std::vector<bool> events;
+        Parcel data, reply;
+        ASSERT_THAT(listener->transact(BINDER_LIB_TEST_CONSUME_STATE_CHANGE_EVENTS, data, &reply),
+                    StatusEq(NO_ERROR));
+        reply.readBoolVector(&events);
+        // There should only be one single state change notifications delievered.
+        ASSERT_EQ(1u, events.size());
+        EXPECT_TRUE(events[0]);
+    }
+}
+
 TEST_F(BinderLibTest, PassFile) {
     int ret;
     int pipefd[2];
@@ -1981,6 +2251,26 @@
                 reply->writeInt32(param.sched_priority);
                 return NO_ERROR;
             }
+            case BINDER_LIB_TEST_LISTEN_FOR_FROZEN_STATE_CHANGE: {
+                sp<IBinder> binder = data.readStrongBinder();
+                frozenStateChangeCallback = sp<TestFrozenStateChangeCallback>::make();
+                // Hold an strong pointer to the binder object so it doesn't go
+                // away.
+                frozenStateChangeCallback->binder = binder;
+                int ret = binder->addFrozenStateChangeCallback(frozenStateChangeCallback);
+                if (ret != NO_ERROR) {
+                    return ret;
+                }
+                auto event = frozenStateChangeCallback->events.popWithTimeout(10ms);
+                if (!event.has_value()) {
+                    return NOT_ENOUGH_DATA;
+                }
+                return NO_ERROR;
+            }
+            case BINDER_LIB_TEST_CONSUME_STATE_CHANGE_EVENTS: {
+                reply->writeBoolVector(frozenStateChangeCallback->getAllAndClear());
+                return NO_ERROR;
+            }
             case BINDER_LIB_TEST_ECHO_VECTOR: {
                 std::vector<uint64_t> vector;
                 auto err = data.readUint64Vector(&vector);
@@ -2067,6 +2357,7 @@
     sp<IBinder> m_callback;
     bool m_exitOnDestroy;
     std::mutex m_blockMutex;
+    sp<TestFrozenStateChangeCallback> frozenStateChangeCallback;
 };
 
 int run_server(int index, int readypipefd, bool usePoll)

diff --git a/libs/binder/tests/binderRecordReplayTest.cpp b/libs/binder/tests/binderRecordReplayTest.cpp
index b975fad..f867b42 100644
--- a/libs/binder/tests/binderRecordReplayTest.cpp
+++ b/libs/binder/tests/binderRecordReplayTest.cpp

@@ -99,12 +99,12 @@
     GENERATE_GETTER_SETTER(SingleDataParcelableArray, std::vector<SingleDataParcelable>);
 
     Status setFileDescriptor(unique_fd input) {
-        mFd = std::move(unique_fd(dup(input)));
+        mFd = unique_fd(dup(input));
         return Status::ok();
     }
 
     Status getFileDescriptor(unique_fd* output) {
-        *output = std::move(unique_fd(dup(mFd)));
+        *output = unique_fd(dup(mFd));
         return Status::ok();
     }
     unique_fd mFd;
@@ -117,7 +117,7 @@
     std::vector<uint8_t> buffer(fdStat.st_size);
     auto readResult = android::base::ReadFully(fd, buffer.data(), fdStat.st_size);
     EXPECT_TRUE(readResult != 0);
-    return std::move(buffer);
+    return buffer;
 }
 
 void replayFuzzService(const sp<BpBinder>& binder, const RecordedTransaction& transaction) {
@@ -387,8 +387,8 @@
 
     // When fds are replayed, it will be replaced by /dev/null..reading from it should yield
     // null data
-    recordReplay(&IBinderRecordReplayTest::setFileDescriptor, std::move(unique_fd(dup(saved))),
-                 &IBinderRecordReplayTest::getFileDescriptor, std::move(unique_fd(dup(changed))));
+    recordReplay(&IBinderRecordReplayTest::setFileDescriptor, unique_fd(dup(saved)),
+                 &IBinderRecordReplayTest::getFileDescriptor, unique_fd(dup(changed)));
 }
 
 int main(int argc, char** argv) {

diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index d88048b..0ef200b 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp

@@ -19,6 +19,12 @@
 #include <aidl/IBinderRpcTest.h>
 #endif
 
+#if defined(__LP64__)
+#define TEST_FILE_SUFFIX "64"
+#else
+#define TEST_FILE_SUFFIX "32"
+#endif
+
 #include <chrono>
 #include <cstdlib>
 #include <iostream>
@@ -259,7 +265,8 @@
 
     std::string path = GetExecutableDirectory();
     auto servicePath = path + "/binder_rpc_test_service" +
-            (singleThreaded ? "_single_threaded" : "") + (noKernel ? "_no_kernel" : "");
+            (singleThreaded ? "_single_threaded" : "") + (noKernel ? "_no_kernel" : "") +
+            TEST_FILE_SUFFIX;
 
     unique_fd bootstrapClientFd, socketFd;
 
@@ -358,26 +365,57 @@
         session->setMaxOutgoingConnections(options.numOutgoingConnections);
         session->setFileDescriptorTransportMode(options.clientFileDescriptorTransportMode);
 
+        sockaddr_storage addr{};
+        socklen_t addrLen = 0;
+
         switch (socketType) {
-            case SocketType::PRECONNECTED:
+            case SocketType::PRECONNECTED: {
+                sockaddr_un addr_un{};
+                addr_un.sun_family = AF_UNIX;
+                strcpy(addr_un.sun_path, serverConfig.addr.c_str());
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_un);
+                addrLen = sizeof(sockaddr_un);
+
                 status = session->setupPreconnectedClient({}, [=]() {
                     return connectTo(UnixSocketAddress(serverConfig.addr.c_str()));
                 });
-                break;
+            } break;
             case SocketType::UNIX_RAW:
-            case SocketType::UNIX:
+            case SocketType::UNIX: {
+                sockaddr_un addr_un{};
+                addr_un.sun_family = AF_UNIX;
+                strcpy(addr_un.sun_path, serverConfig.addr.c_str());
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_un);
+                addrLen = sizeof(sockaddr_un);
+
                 status = session->setupUnixDomainClient(serverConfig.addr.c_str());
-                break;
+            } break;
             case SocketType::UNIX_BOOTSTRAP:
                 status = session->setupUnixDomainSocketBootstrapClient(
                         unique_fd(dup(bootstrapClientFd.get())));
                 break;
-            case SocketType::VSOCK:
+            case SocketType::VSOCK: {
+                sockaddr_vm addr_vm{
+                        .svm_family = AF_VSOCK,
+                        .svm_port = static_cast<unsigned int>(serverInfo.port),
+                        .svm_cid = VMADDR_CID_LOCAL,
+                };
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_vm);
+                addrLen = sizeof(sockaddr_vm);
+
                 status = session->setupVsockClient(VMADDR_CID_LOCAL, serverInfo.port);
-                break;
-            case SocketType::INET:
-                status = session->setupInetClient("127.0.0.1", serverInfo.port);
-                break;
+            } break;
+            case SocketType::INET: {
+                const std::string ip_addr = "127.0.0.1";
+                sockaddr_in addr_in{};
+                addr_in.sin_family = AF_INET;
+                addr_in.sin_port = htons(serverInfo.port);
+                inet_aton(ip_addr.c_str(), &addr_in.sin_addr);
+                addr = *reinterpret_cast<sockaddr_storage*>(&addr_in);
+                addrLen = sizeof(sockaddr_in);
+
+                status = session->setupInetClient(ip_addr.c_str(), serverInfo.port);
+            } break;
             case SocketType::TIPC:
                 status = session->setupPreconnectedClient({}, [=]() {
 #ifdef BINDER_RPC_TO_TRUSTY_TEST
@@ -406,7 +444,7 @@
             break;
         }
         LOG_ALWAYS_FATAL_IF(status != OK, "Could not connect: %s", statusToString(status).c_str());
-        ret->sessions.push_back({session, session->getRootObject()});
+        ret->sessions.push_back({session, session->getRootObject(), addr, addrLen});
     }
     return ret;
 }
@@ -416,7 +454,7 @@
         GTEST_SKIP() << "This test requires multiple threads";
     }
 
-    constexpr size_t kNumThreads = 10;
+    constexpr size_t kNumThreads = 5;
 
     auto proc = createRpcTestSocketServerProcess({.numThreads = kNumThreads});
 
@@ -461,11 +499,11 @@
 
     EXPECT_GE(epochMsAfter, epochMsBefore + 2 * sleepMs);
 
-    // Potential flake, but make sure calls are handled in parallel. Due
-    // to past flakes, this only checks that the amount of time taken has
-    // some parallelism. Other tests such as ThreadPoolGreaterThanEqualRequested
-    // check this more exactly.
-    EXPECT_LE(epochMsAfter, epochMsBefore + (numCalls - 1) * sleepMs);
+    // b/272429574, b/365294257
+    // This flakes too much to test. Parallelization is tested
+    // in ThreadPoolGreaterThanEqualRequested and other tests.
+    // Test to make sure calls are handled in parallel.
+    // EXPECT_LE(epochMsAfter, epochMsBefore + (numCalls - 1) * sleepMs);
 }
 
 TEST_P(BinderRpc, ThreadPoolOverSaturated) {
@@ -477,8 +515,7 @@
     constexpr size_t kNumCalls = kNumThreads + 3;
     auto proc = createRpcTestSocketServerProcess({.numThreads = kNumThreads});
 
-    // b/272429574 - below 500ms, the test fails
-    testThreadPoolOverSaturated(proc.rootIface, kNumCalls, 500 /*ms*/);
+    testThreadPoolOverSaturated(proc.rootIface, kNumCalls, 200 /*ms*/);
 }
 
 TEST_P(BinderRpc, ThreadPoolLimitOutgoing) {
@@ -492,8 +529,7 @@
     auto proc = createRpcTestSocketServerProcess(
             {.numThreads = kNumThreads, .numOutgoingConnections = kNumOutgoingConnections});
 
-    // b/272429574 - below 500ms, the test fails
-    testThreadPoolOverSaturated(proc.rootIface, kNumCalls, 500 /*ms*/);
+    testThreadPoolOverSaturated(proc.rootIface, kNumCalls, 200 /*ms*/);
 }
 
 TEST_P(BinderRpc, ThreadingStressTest) {
@@ -1120,6 +1156,139 @@
     ASSERT_EQ(beforeFds, countFds()) << (system("ls -l /proc/self/fd/"), "fd leak?");
 }
 
+// TODO need to add IServiceManager.cpp/.h to libbinder_no_kernel
+#ifdef BINDER_WITH_KERNEL_IPC
+
+class BinderRpcAccessor : public BinderRpc {
+    void SetUp() override {
+        if (serverSingleThreaded()) {
+            // This blocks on android::FdTrigger::triggerablePoll when attempting to set
+            // up the client RpcSession
+            GTEST_SKIP() << "Accessors are not supported for single threaded libbinder";
+        }
+        if (rpcSecurity() == RpcSecurity::TLS) {
+            GTEST_SKIP() << "Accessors are not supported with TLS";
+            // ... for now
+        }
+
+        if (socketType() == SocketType::UNIX_BOOTSTRAP) {
+            GTEST_SKIP() << "Accessors do not support UNIX_BOOTSTRAP because no connection "
+                            "information is known";
+        }
+        if (socketType() == SocketType::TIPC) {
+            GTEST_SKIP() << "Accessors do not support TIPC because the socket transport is not "
+                            "known in libbinder";
+        }
+        BinderRpc::SetUp();
+    }
+};
+
+inline void waitForExtraSessionCleanup(const BinderRpcTestProcessSession& proc) {
+    // Need to give the server some time to delete its RpcSession after our last
+    // reference is dropped, closing the connection. Check for up to 1 second,
+    // every 10 ms.
+    for (size_t i = 0; i < 100; i++) {
+        std::vector<int32_t> remoteCounts;
+        EXPECT_OK(proc.rootIface->countBinders(&remoteCounts));
+        // We exect the original binder to still be alive, we just want to wait
+        // for this extra session to be cleaned up.
+        if (remoteCounts.size() == proc.proc->sessions.size()) break;
+        usleep(10000);
+    }
+}
+
+TEST_P(BinderRpcAccessor, InjectAndGetServiceHappyPath) {
+    constexpr size_t kNumThreads = 10;
+    const String16 kInstanceName("super.cool.service/better_than_default");
+
+    auto proc = createRpcTestSocketServerProcess({.numThreads = kNumThreads});
+    EXPECT_EQ(OK, proc.rootBinder->pingBinder());
+
+    auto receipt = addAccessorProvider([&](const String16& name) -> sp<IBinder> {
+        return createAccessor(name,
+                              [&](const String16& name, sockaddr* outAddr,
+                                  socklen_t addrSize) -> status_t {
+                                  if (outAddr == nullptr ||
+                                      addrSize < proc.proc->sessions[0].addrLen) {
+                                      return BAD_VALUE;
+                                  }
+                                  if (name == kInstanceName) {
+                                      if (proc.proc->sessions[0].addr.ss_family == AF_UNIX) {
+                                          sockaddr_un* un = reinterpret_cast<sockaddr_un*>(
+                                                  &proc.proc->sessions[0].addr);
+                                          ALOGE("inside callback: %s", un->sun_path);
+                                      }
+                                      std::memcpy(outAddr, &proc.proc->sessions[0].addr,
+                                                  proc.proc->sessions[0].addrLen);
+                                      return OK;
+                                  }
+                                  return NAME_NOT_FOUND;
+                              });
+    });
+
+    EXPECT_FALSE(receipt.expired());
+
+    sp<IBinder> binder = defaultServiceManager()->checkService(kInstanceName);
+    sp<IBinderRpcTest> service = checked_interface_cast<IBinderRpcTest>(binder);
+    EXPECT_NE(service, nullptr);
+
+    sp<IBinder> out;
+    EXPECT_OK(service->repeatBinder(binder, &out));
+    EXPECT_EQ(binder, out);
+
+    out.clear();
+    binder.clear();
+    service.clear();
+
+    status_t status = removeAccessorProvider(receipt);
+    EXPECT_EQ(status, OK);
+
+    waitForExtraSessionCleanup(proc);
+}
+
+TEST_P(BinderRpcAccessor, InjectNoAccessorProvided) {
+    const String16 kInstanceName("doesnt_matter_nothing_checks");
+
+    bool isProviderDeleted = false;
+
+    auto receipt = addAccessorProvider([&](const String16&) -> sp<IBinder> { return nullptr; });
+    EXPECT_FALSE(receipt.expired());
+
+    sp<IBinder> binder = defaultServiceManager()->checkService(kInstanceName);
+    EXPECT_EQ(binder, nullptr);
+
+    status_t status = removeAccessorProvider(receipt);
+    EXPECT_EQ(status, OK);
+}
+
+TEST_P(BinderRpcAccessor, InjectNoSockaddrProvided) {
+    constexpr size_t kNumThreads = 10;
+    const String16 kInstanceName("super.cool.service/better_than_default");
+
+    auto proc = createRpcTestSocketServerProcess({.numThreads = kNumThreads});
+    EXPECT_EQ(OK, proc.rootBinder->pingBinder());
+
+    bool isProviderDeleted = false;
+    bool isAccessorDeleted = false;
+
+    auto receipt = addAccessorProvider([&](const String16& name) -> sp<IBinder> {
+        return createAccessor(name, [&](const String16&, sockaddr*, socklen_t) -> status_t {
+            // don't fill in outAddr
+            return NAME_NOT_FOUND;
+        });
+    });
+
+    EXPECT_FALSE(receipt.expired());
+
+    sp<IBinder> binder = defaultServiceManager()->checkService(kInstanceName);
+    EXPECT_EQ(binder, nullptr);
+
+    status_t status = removeAccessorProvider(receipt);
+    EXPECT_EQ(status, OK);
+}
+
+#endif // BINDER_WITH_KERNEL_IPC
+
 #ifdef BINDER_RPC_TO_TRUSTY_TEST
 
 static std::vector<BinderRpc::ParamType> getTrustyBinderRpcParams() {
@@ -1308,6 +1477,11 @@
 INSTANTIATE_TEST_SUITE_P(PerSocket, BinderRpc, ::testing::ValuesIn(getBinderRpcParams()),
                          BinderRpc::PrintParamInfo);
 
+#ifdef BINDER_WITH_KERNEL_IPC
+INSTANTIATE_TEST_SUITE_P(PerSocket, BinderRpcAccessor, ::testing::ValuesIn(getBinderRpcParams()),
+                         BinderRpc::PrintParamInfo);
+#endif // BINDER_WITH_KERNEL_IPC
+
 class BinderRpcServerRootObject
       : public ::testing::TestWithParam<std::tuple<bool, bool, RpcSecurity>> {};
 

diff --git a/libs/binder/tests/binderRpcTestFixture.h b/libs/binder/tests/binderRpcTestFixture.h
index 2c9646b..c8a8acc 100644
--- a/libs/binder/tests/binderRpcTestFixture.h
+++ b/libs/binder/tests/binderRpcTestFixture.h

@@ -35,6 +35,12 @@
     struct SessionInfo {
         sp<RpcSession> session;
         sp<IBinder> root;
+// Trusty defines its own socket APIs in trusty_ipc.h but doesn't include
+// sockaddr types.
+#ifndef __TRUSTY__
+        sockaddr_storage addr;
+        socklen_t addrLen;
+#endif
     };
 
     // client session objects associated with other process

diff --git a/libs/binder/tests/binderRpcUniversalTests.cpp b/libs/binder/tests/binderRpcUniversalTests.cpp
index f480780..c6fd487 100644
--- a/libs/binder/tests/binderRpcUniversalTests.cpp
+++ b/libs/binder/tests/binderRpcUniversalTests.cpp

@@ -301,7 +301,8 @@
 
     auto proc = createRpcTestSocketServerProcess({});
 
-    sp<IBinder> someRealBinder = IInterface::asBinder(defaultServiceManager());
+    sp<IBinder> someRealBinder = defaultServiceManager()->getService(String16("activity"));
+    ASSERT_NE(someRealBinder, nullptr);
     sp<IBinder> outBinder;
     EXPECT_EQ(INVALID_OPERATION,
               proc.rootIface->repeatBinder(someRealBinder, &outBinder).transactionError());
@@ -323,6 +324,22 @@
 
 // END TESTS FOR LIMITATIONS OF SOCKET BINDER
 
+class TestFrozenStateChangeCallback : public IBinder::FrozenStateChangeCallback {
+public:
+    virtual void onStateChanged(const wp<IBinder>&, State) {}
+};
+
+TEST_P(BinderRpc, RpcBinderShouldFailOnFrozenStateCallbacks) {
+    auto proc = createRpcTestSocketServerProcess({});
+
+    sp<IBinder> a;
+    sp<TestFrozenStateChangeCallback> callback = sp<TestFrozenStateChangeCallback>::make();
+    EXPECT_OK(proc.rootIface->alwaysGiveMeTheSameBinder(&a));
+    EXPECT_DEATH_IF_SUPPORTED(
+            { std::ignore = a->addFrozenStateChangeCallback(callback); },
+            "addFrozenStateChangeCallback\\(\\) is not supported for RPC Binder.");
+}
+
 TEST_P(BinderRpc, RepeatRootObject) {
     auto proc = createRpcTestSocketServerProcess({});
 

diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
index fd9777a..0ed8a55 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp

@@ -55,7 +55,7 @@
         offset += CHAR_BIT;
     }
 
-    return std::move(reverseData);
+    return reverseData;
 }
 
 template <typename T>

diff --git a/libs/binder/trusty/include/binder/RpcServerTrusty.h b/libs/binder/trusty/include/binder/RpcServerTrusty.h
index fe44ea5..583ad01 100644
--- a/libs/binder/trusty/include/binder/RpcServerTrusty.h
+++ b/libs/binder/trusty/include/binder/RpcServerTrusty.h

@@ -42,7 +42,7 @@
     // equivalent.
     struct PortAcl {
         uint32_t flags;
-        std::vector<const uuid> uuids;
+        std::vector<uuid> uuids;
         const void* extraData;
     };
 

diff --git a/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt b/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt
index ff3ae5a..4f293b9 100644
--- a/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt
+++ b/libs/bufferstreams/examples/app/java/com/android/graphics/bufferstreamsdemoapp/BufferDemosAppBar.kt

@@ -1,7 +1,5 @@
 package com.android.graphics.bufferstreamsdemoapp
 
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
@@ -29,10 +27,11 @@
             navigationIcon = {
                 if (canNavigateBack) {
                     IconButton(onClick = navigateUp) {
-                        Icon(
-                                imageVector = Icons.AutoMirrored.Filled.ArrowBack,
-                                contentDescription = stringResource(R.string.back_button)
-                        )
+                        // b/355293776
+                        // Icon(
+                        //     imageVector = Icons.AutoMirrored.Filled.ArrowBack,
+                        //     contentDescription = stringResource(R.string.back_button)
+                        // )
                     }
                 }
             }

diff --git a/libs/bufferstreams/rust/src/lib.rs b/libs/bufferstreams/rust/src/lib.rs
index 17d4d87..9c48b49 100644
--- a/libs/bufferstreams/rust/src/lib.rs
+++ b/libs/bufferstreams/rust/src/lib.rs

@@ -37,23 +37,23 @@
 /// BufferPublishers are required to adhere to the following, based on the
 /// reactive streams specification:
 /// * The total number of on_next´s signalled by a Publisher to a Subscriber
-/// MUST be less than or equal to the total number of elements requested by that
-/// Subscriber´s Subscription at all times.
+///   MUST be less than or equal to the total number of elements requested by that
+///   Subscriber´s Subscription at all times.
 /// * A Publisher MAY signal fewer on_next than requested and terminate the
-/// Subscription by calling on_complete or on_error.
+///   Subscription by calling on_complete or on_error.
 /// * on_subscribe, on_next, on_error and on_complete signaled to a Subscriber
-/// MUST be signaled serially.
+///   MUST be signaled serially.
 /// * If a Publisher fails it MUST signal an on_error.
 /// * If a Publisher terminates successfully (finite stream) it MUST signal an
-/// on_complete.
+///   on_complete.
 /// * If a Publisher signals either on_error or on_complete on a Subscriber,
-/// that Subscriber’s Subscription MUST be considered cancelled.
+///   that Subscriber’s Subscription MUST be considered cancelled.
 /// * Once a terminal state has been signaled (on_error, on_complete) it is
-/// REQUIRED that no further signals occur.
+///   REQUIRED that no further signals occur.
 /// * If a Subscription is cancelled its Subscriber MUST eventually stop being
-///  signaled.
+///   signaled.
 /// * A Publisher MAY support multiple Subscribers and decides whether each
-/// Subscription is unicast or multicast.
+///   Subscription is unicast or multicast.
 pub trait BufferPublisher {
     /// Returns the StreamConfig of buffers that publisher creates.
     fn get_publisher_stream_config(&self) -> StreamConfig;
@@ -69,25 +69,25 @@
 /// BufferSubcribers are required to adhere to the following, based on the
 /// reactive streams specification:
 /// * The total number of on_next´s signalled by a Publisher to a Subscriber
-/// MUST be less than or equal to the total number of elements requested by that
-/// Subscriber´s Subscription at all times.
+///   MUST be less than or equal to the total number of elements requested by that
+///   Subscriber´s Subscription at all times.
 /// * A Publisher MAY signal fewer on_next than requested and terminate the
-/// Subscription by calling on_complete or on_error.
+///   Subscription by calling on_complete or on_error.
 /// * on_subscribe, on_next, on_error and on_complete signaled to a Subscriber
-/// MUST be signaled serially.
+///   MUST be signaled serially.
 /// * If a Publisher fails it MUST signal an on_error.
 /// * If a Publisher terminates successfully (finite stream) it MUST signal an
-/// on_complete.
+///   on_complete.
 /// * If a Publisher signals either on_error or on_complete on a Subscriber,
-/// that Subscriber’s Subscription MUST be considered cancelled.
+///   that Subscriber’s Subscription MUST be considered cancelled.
 /// * Once a terminal state has been signaled (on_error, on_complete) it is
-/// REQUIRED that no further signals occur.
+///   REQUIRED that no further signals occur.
 /// * If a Subscription is cancelled its Subscriber MUST eventually stop being
-/// signaled.
+///   signaled.
 /// * Publisher.subscribe MAY be called as many times as wanted but MUST be
-/// with a different Subscriber each time.
+///   with a different Subscriber each time.
 /// * A Publisher MAY support multiple Subscribers and decides whether each
-/// Subscription is unicast or multicast.
+///   Subscription is unicast or multicast.
 pub trait BufferSubscriber {
     /// The StreamConfig of buffers that this subscriber expects.
     fn get_subscriber_stream_config(&self) -> StreamConfig;
@@ -111,39 +111,39 @@
 /// BufferSubcriptions are required to adhere to the following, based on the
 /// reactive streams specification:
 /// * Subscription.request and Subscription.cancel MUST only be called inside
-/// of its Subscriber context.
+///   of its Subscriber context.
 /// * The Subscription MUST allow the Subscriber to call Subscription.request
-/// synchronously from within on_next or on_subscribe.
+///   synchronously from within on_next or on_subscribe.
 /// * Subscription.request MUST place an upper bound on possible synchronous
-/// recursion between Publisher and Subscriber.
+///   recursion between Publisher and Subscriber.
 /// * Subscription.request SHOULD respect the responsivity of its caller by
-/// returning in a timely manner.
+///   returning in a timely manner.
 /// * Subscription.cancel MUST respect the responsivity of its caller by
-/// returning in a timely manner, MUST be idempotent and MUST be thread-safe.
+///   returning in a timely manner, MUST be idempotent and MUST be thread-safe.
 /// * After the Subscription is cancelled, additional
-/// Subscription.request(n: u64) MUST be NOPs.
+///   Subscription.request(n: u64) MUST be NOPs.
 /// * After the Subscription is cancelled, additional Subscription.cancel()
-/// MUST be NOPs.
+///   MUST be NOPs.
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MUST register the given number of additional elements to be produced to the
-/// respective subscriber.
+///   MUST register the given number of additional elements to be produced to the
+///   respective subscriber.
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MUST signal on_error if the argument is <= 0. The cause message SHOULD
-/// explain that non-positive request signals are illegal.
+///   MUST signal on_error if the argument is <= 0. The cause message SHOULD
+///   explain that non-positive request signals are illegal.
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MAY synchronously call on_next on this (or other) subscriber(s).
+///   MAY synchronously call on_next on this (or other) subscriber(s).
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MAY synchronously call on_complete or on_error on this (or other)
-/// subscriber(s).
+///   MAY synchronously call on_complete or on_error on this (or other)
+///   subscriber(s).
 /// * While the Subscription is not cancelled, Subscription.cancel() MUST
-/// request the Publisher to eventually stop signaling its Subscriber. The
-/// operation is NOT REQUIRED to affect the Subscription immediately.
+///   request the Publisher to eventually stop signaling its Subscriber. The
+///   operation is NOT REQUIRED to affect the Subscription immediately.
 /// * While the Subscription is not cancelled, Subscription.cancel() MUST
-/// request the Publisher to eventually drop any references to the corresponding
-/// subscriber.
+///   request the Publisher to eventually drop any references to the corresponding
+///   subscriber.
 /// * While the Subscription is not cancelled, calling Subscription.cancel MAY
-/// cause the Publisher, if stateful, to transition into the shut-down state if
-/// no other Subscription exists at this point.
+///   cause the Publisher, if stateful, to transition into the shut-down state if
+///   no other Subscription exists at this point.
 /// * Calling Subscription.cancel MUST return normally.
 /// * Calling Subscription.request MUST return normally.
 pub trait BufferSubscription: Send + Sync + 'static {

diff --git a/libs/bufferstreams/rust/src/stream_config.rs b/libs/bufferstreams/rust/src/stream_config.rs
index 454bdf1..8288f9f 100644
--- a/libs/bufferstreams/rust/src/stream_config.rs
+++ b/libs/bufferstreams/rust/src/stream_config.rs

@@ -32,10 +32,23 @@
     pub stride: u32,
 }
 
+impl From<StreamConfig> for HardwareBufferDescription {
+    fn from(config: StreamConfig) -> Self {
+        HardwareBufferDescription::new(
+            config.width,
+            config.height,
+            config.layers,
+            config.format,
+            config.usage,
+            config.stride,
+        )
+    }
+}
+
 impl StreamConfig {
     /// Tries to create a new HardwareBuffer from settings in a [StreamConfig].
     pub fn create_hardware_buffer(&self) -> Option<HardwareBuffer> {
-        HardwareBuffer::new(self.width, self.height, self.layers, self.format, self.usage)
+        HardwareBuffer::new(&(*self).into())
     }
 }
 
@@ -59,9 +72,10 @@
         assert!(maybe_buffer.is_some());
 
         let buffer = maybe_buffer.unwrap();
-        assert_eq!(config.width, buffer.width());
-        assert_eq!(config.height, buffer.height());
-        assert_eq!(config.format, buffer.format());
-        assert_eq!(config.usage, buffer.usage());
+        let description = buffer.description();
+        assert_eq!(config.width, description.width());
+        assert_eq!(config.height, description.height());
+        assert_eq!(config.format, description.format());
+        assert_eq!(config.usage, description.usage());
     }
 }

diff --git a/libs/cputimeinstate/testtimeinstate.cpp b/libs/cputimeinstate/testtimeinstate.cpp
index 81f6a58..44cdc02 100644
--- a/libs/cputimeinstate/testtimeinstate.cpp
+++ b/libs/cputimeinstate/testtimeinstate.cpp

@@ -41,7 +41,7 @@
 static constexpr uint64_t NSEC_PER_YEAR = NSEC_PER_SEC * 60 * 60 * 24 * 365;
 
 // Declare busy loop variable globally to prevent removal during optimization
-static long sum __attribute__((used)) = 0;
+static volatile long sum __attribute__((used)) = 1;
 
 using std::vector;
 
@@ -579,8 +579,8 @@
 
 // Keeps CPU busy with some number crunching
 void useCpu() {
-    sum = 0;
-    for (int i = 0; i < 100000; i++) {
+    sum = 1;
+    for (int i = 1; i < 100000; i++) {
         sum *= i;
     }
 }

diff --git a/libs/gralloc/types/fuzzer/Android.bp b/libs/gralloc/types/fuzzer/Android.bp
index 8337182..d9cdb59 100644
--- a/libs/gralloc/types/fuzzer/Android.bp
+++ b/libs/gralloc/types/fuzzer/Android.bp

@@ -28,14 +28,10 @@
     ],
     static_libs: [
         "libbase",
-        "libcgrouprc",
-        "libcgrouprc_format",
         "libcutils",
         "libgralloctypes",
         "libhidlbase",
         "liblog",
-        "libprocessgroup",
-        "libjsoncpp",
         "libutils",
     ],
 

diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index 52383ac..4c3f4a6 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp

@@ -83,6 +83,55 @@
 
 static const char* kLlndkLibrariesTxtPath = "/system/etc/llndk.libraries.txt";
 
+// List of libraries that were previously available via VNDK-SP,
+// and are now available via SPHAL.
+// On modern devices that lack the VNDK APEX, the device no longer
+// contains a helpful list of these libraries on the filesystem as above.
+// See system/sepolicy/vendor/file_contexts
+static const char* kFormerlyVndkspLibrariesList =
+    "android.hardware.common-V2-ndk.so:"
+    "android.hardware.common.fmq-V1-ndk.so:"
+    "android.hardware.graphics.allocator-V2-ndk.so:"
+    "android.hardware.graphics.common-V5-ndk.so:"
+    "android.hardware.graphics.common@1.0.so:"
+    "android.hardware.graphics.common@1.1.so:"
+    "android.hardware.graphics.common@1.2.so:"
+    "android.hardware.graphics.composer3-V1-ndk.so:"
+    "android.hardware.graphics.mapper@2.0.so:"
+    "android.hardware.graphics.mapper@2.1.so:"
+    "android.hardware.graphics.mapper@3.0.so:"
+    "android.hardware.graphics.mapper@4.0.so:"
+    "android.hardware.renderscript@1.0.so:"
+    "android.hidl.memory.token@1.0.so:"
+    "android.hidl.memory@1.0-impl.so:"
+    "android.hidl.memory@1.0.so:"
+    "android.hidl.safe_union@1.0.so:"
+    "libRSCpuRef.so:"
+    "libRSDriver.so:"
+    "libRS_internal.so:"
+    "libbacktrace.so:"
+    "libbase.so:"
+    "libbcinfo.so:"
+    "libblas.so:"
+    "libc++.so:"
+    "libcompiler_rt.so:"
+    "libcutils.so:"
+    "libdmabufheap.so:"
+    "libft2.so:"
+    "libgralloctypes.so:"
+    "libhardware.so:"
+    "libhidlbase.so:"
+    "libhidlmemory.so:"
+    "libion.so:"
+    "libjsoncpp.so:"
+    "liblzma.so:"
+    "libpng.so:"
+    "libprocessgroup.so:"
+    "libunwindstack.so:"
+    "libutils.so:"
+    "libutilscallstack.so:"
+    "libz.so";
+
 static std::string vndkVersionStr() {
 #ifdef __BIONIC__
     return base::GetProperty("ro.vndk.version", "");
@@ -122,8 +171,12 @@
 static const std::string getSystemNativeLibraries(NativeLibrary type) {
     std::string nativeLibrariesSystemConfig = "";
 
-    if (!isVndkEnabled() && type == NativeLibrary::LLNDK) {
-        nativeLibrariesSystemConfig = kLlndkLibrariesTxtPath;
+    if (!isVndkEnabled()) {
+        if (type == NativeLibrary::VNDKSP) {
+            return kFormerlyVndkspLibrariesList;
+        } else {
+            nativeLibrariesSystemConfig = kLlndkLibrariesTxtPath;
+        }
     } else {
         nativeLibrariesSystemConfig = kNativeLibrariesSystemConfigPath[type];
         insertVndkVersionStr(&nativeLibrariesSystemConfig);
@@ -263,7 +316,7 @@
         ALOGI("Driver path is setup via UPDATABLE_GFX_DRIVER: %s", mDriverPath.c_str());
     }
 
-    auto vndkNamespace = android_get_exported_namespace("vndk");
+    auto vndkNamespace = android_get_exported_namespace(isVndkEnabled() ? "vndk" : "sphal");
     if (!vndkNamespace) {
         mDriverNamespace = nullptr;
         return mDriverNamespace;
@@ -631,7 +684,7 @@
         return mAngleNamespace;
     }
 
-    auto vndkNamespace = android_get_exported_namespace("vndk");
+    auto vndkNamespace = android_get_exported_namespace(isVndkEnabled() ? "vndk" : "sphal");
     if (!vndkNamespace) {
         mAngleNamespace = nullptr;
         return mAngleNamespace;

diff --git a/libs/graphicsenv/OWNERS b/libs/graphicsenv/OWNERS
index 1db8cbe..4aa8fff 100644
--- a/libs/graphicsenv/OWNERS
+++ b/libs/graphicsenv/OWNERS

@@ -1,4 +1,11 @@
 chrisforbes@google.com
-cnorthrop@google.com
 ianelliott@google.com
-lpy@google.com
+
+abdolrashidi@google.com
+cclao@google.com
+cnorthrop@google.com
+hibrian@google.com
+mathias@google.com
+romanl@google.com
+solti@google.com
+yuxinhu@google.com

diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 739c3c2..044170c 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp

@@ -1096,6 +1096,17 @@
         AsyncWorker::getInstance().post(
                 [listener = mListener, slots = slots]() { listener->onBuffersDiscarded(slots); });
     }
+
+    void onBufferDetached(int slot) override {
+        AsyncWorker::getInstance().post(
+                [listener = mListener, slot = slot]() { listener->onBufferDetached(slot); });
+    }
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    void onBufferAttached() override {
+        AsyncWorker::getInstance().post([listener = mListener]() { listener->onBufferAttached(); });
+    }
+#endif
 };
 
 // Extends the BufferQueueProducer to create a wrapper around the listener so the listener calls

diff --git a/libs/gui/IProducerListener.cpp b/libs/gui/IProducerListener.cpp
index 7700795..8b9b090 100644
--- a/libs/gui/IProducerListener.cpp
+++ b/libs/gui/IProducerListener.cpp

@@ -184,4 +184,10 @@
 void BnProducerListener::onBuffersDiscarded(const std::vector<int32_t>& /*discardedSlots*/) {
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+bool BnProducerListener::needsAttachNotify() {
+    return true;
+}
+#endif
+
 } // namespace android

diff --git a/libs/gui/OWNERS b/libs/gui/OWNERS
index 070f6bf..b97cee3 100644
--- a/libs/gui/OWNERS
+++ b/libs/gui/OWNERS

@@ -1,6 +1,8 @@
 # Bug component: 1075131
 
+carlosmr@google.com
 chrisforbes@google.com
+jshargo@google.com
 jreck@google.com
 
 file:/services/surfaceflinger/OWNERS
@@ -9,10 +11,10 @@
 
 # BufferQueue is feature-frozen
 per-file BufferQueue* = set noparent
-per-file BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com
 per-file IGraphicBuffer* = set noparent
-per-file IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com
 per-file include/gui/BufferQueue* = set noparent
-per-file include/gui/BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file include/gui/BufferQueue* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com
 per-file include/gui/IGraphicBuffer* = set noparent
-per-file include/gui/IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com
+per-file include/gui/IGraphicBuffer* = jreck@google.com, sumir@google.com, alecmouri@google.com, jshargo@google.com, carlosmr@google.com

diff --git a/libs/gui/include/gui/IProducerListener.h b/libs/gui/include/gui/IProducerListener.h
index 3dcc6b6..43bf6a7 100644
--- a/libs/gui/include/gui/IProducerListener.h
+++ b/libs/gui/include/gui/IProducerListener.h

@@ -90,6 +90,9 @@
             Parcel* reply, uint32_t flags = 0);
     virtual bool needsReleaseNotify();
     virtual void onBuffersDiscarded(const std::vector<int32_t>& slots);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    virtual bool needsAttachNotify();
+#endif
 };
 
 #else
@@ -103,6 +106,9 @@
     virtual ~StubProducerListener();
     virtual void onBufferReleased() {}
     virtual bool needsReleaseNotify() { return false; }
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    virtual bool needsAttachNotify() { return false; }
+#endif
 };
 
 } // namespace android

diff --git a/libs/gui/tests/RegionSampling_test.cpp b/libs/gui/tests/RegionSampling_test.cpp
index b18b544..223e4b6 100644
--- a/libs/gui/tests/RegionSampling_test.cpp
+++ b/libs/gui/tests/RegionSampling_test.cpp

@@ -239,8 +239,9 @@
     float const luma_green = 0.7152;
     uint32_t const rgba_blue = 0xFFFF0000;
     float const luma_blue = 0.0722;
-    float const error_margin = 0.01;
+    float const error_margin = 0.1;
     float const luma_gray = 0.50;
+    static constexpr std::chrono::milliseconds EVENT_WAIT_TIME_MS = 5000ms;
 };
 
 TEST_F(RegionSamplingTest, invalidLayerHandle_doesNotCrash) {
@@ -261,7 +262,7 @@
     composer->removeRegionSamplingListener(listener);
 }
 
-TEST_F(RegionSamplingTest, DISABLED_CollectsLuma) {
+TEST_F(RegionSamplingTest, CollectsLuma) {
     fill_render(rgba_green);
 
     sp<gui::ISurfaceComposer> composer = ComposerServiceAIDL::getComposerService();
@@ -273,7 +274,30 @@
     sampleArea.bottom = 200;
     composer->addRegionSamplingListener(sampleArea, mTopLayer->getHandle(), listener);
 
-    EXPECT_TRUE(listener->wait_event(300ms)) << "timed out waiting for luma event to be received";
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
+    EXPECT_NEAR(listener->luma(), luma_green, error_margin);
+
+    composer->removeRegionSamplingListener(listener);
+}
+
+TEST_F(RegionSamplingTest, CollectsLumaForSecureLayer) {
+    fill_render(rgba_green);
+    SurfaceComposerClient::Transaction()
+            .setFlags(mContentLayer, layer_state_t::eLayerSecure, layer_state_t::eLayerSecure)
+            .apply(/*synchronous=*/true);
+
+    sp<gui::ISurfaceComposer> composer = ComposerServiceAIDL::getComposerService();
+    sp<Listener> listener = new Listener();
+    gui::ARect sampleArea;
+    sampleArea.left = 100;
+    sampleArea.top = 100;
+    sampleArea.right = 200;
+    sampleArea.bottom = 200;
+    composer->addRegionSamplingListener(sampleArea, mTopLayer->getHandle(), listener);
+
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_green, error_margin);
 
     composer->removeRegionSamplingListener(listener);
@@ -291,13 +315,14 @@
     sampleArea.bottom = 200;
     composer->addRegionSamplingListener(sampleArea, mTopLayer->getHandle(), listener);
 
-    EXPECT_TRUE(listener->wait_event(300ms)) << "timed out waiting for luma event to be received";
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_green, error_margin);
 
     listener->reset();
 
     fill_render(rgba_blue);
-    EXPECT_TRUE(listener->wait_event(300ms))
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
             << "timed out waiting for 2nd luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_blue, error_margin);
 
@@ -323,10 +348,10 @@
     graySampleArea.bottom = 200;
     composer->addRegionSamplingListener(graySampleArea, mTopLayer->getHandle(), grayListener);
 
-    EXPECT_TRUE(grayListener->wait_event(300ms))
+    EXPECT_TRUE(grayListener->wait_event(EVENT_WAIT_TIME_MS))
             << "timed out waiting for luma event to be received";
     EXPECT_NEAR(grayListener->luma(), luma_gray, error_margin);
-    EXPECT_TRUE(greenListener->wait_event(300ms))
+    EXPECT_TRUE(greenListener->wait_event(EVENT_WAIT_TIME_MS))
             << "timed out waiting for luma event to be received";
     EXPECT_NEAR(greenListener->luma(), luma_green, error_margin);
 
@@ -334,7 +359,7 @@
     composer->removeRegionSamplingListener(grayListener);
 }
 
-TEST_F(RegionSamplingTest, DISABLED_TestIfInvalidInputParameters) {
+TEST_F(RegionSamplingTest, TestIfInvalidInputParameters) {
     sp<gui::ISurfaceComposer> composer = ComposerServiceAIDL::getComposerService();
     sp<Listener> listener = new Listener();
 
@@ -369,7 +394,7 @@
     composer->removeRegionSamplingListener(listener);
 }
 
-TEST_F(RegionSamplingTest, DISABLED_TestCallbackAfterRemoveListener) {
+TEST_F(RegionSamplingTest, TestCallbackAfterRemoveListener) {
     fill_render(rgba_green);
     sp<gui::ISurfaceComposer> composer = ComposerServiceAIDL::getComposerService();
     sp<Listener> listener = new Listener();
@@ -381,7 +406,8 @@
     composer->addRegionSamplingListener(sampleArea, mTopLayer->getHandle(), listener);
     fill_render(rgba_green);
 
-    EXPECT_TRUE(listener->wait_event(300ms)) << "timed out waiting for luma event to be received";
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_green, error_margin);
 
     listener->reset();
@@ -404,11 +430,13 @@
     // Test: listener in (100, 100). See layer before move, no layer after move.
     fill_render(rgba_blue);
     composer->addRegionSamplingListener(sampleAreaA, mTopLayer->getHandle(), listener);
-    EXPECT_TRUE(listener->wait_event(300ms)) << "timed out waiting for luma event to be received";
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_blue, error_margin);
     listener->reset();
     SurfaceComposerClient::Transaction{}.setPosition(mContentLayer, 600, 600).apply();
-    EXPECT_TRUE(listener->wait_event(300ms)) << "timed out waiting for luma event to be received";
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_gray, error_margin);
     composer->removeRegionSamplingListener(listener);
 
@@ -420,11 +448,13 @@
     sampleAreaA.right = sampleArea.right;
     sampleAreaA.bottom = sampleArea.bottom;
     composer->addRegionSamplingListener(sampleAreaA, mTopLayer->getHandle(), listener);
-    EXPECT_TRUE(listener->wait_event(300ms)) << "timed out waiting for luma event to be received";
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_gray, error_margin);
     listener->reset();
     SurfaceComposerClient::Transaction{}.setPosition(mContentLayer, 600, 600).apply();
-    EXPECT_TRUE(listener->wait_event(300ms)) << "timed out waiting for luma event to be received";
+    EXPECT_TRUE(listener->wait_event(EVENT_WAIT_TIME_MS))
+            << "timed out waiting for luma event to be received";
     EXPECT_NEAR(listener->luma(), luma_green, error_margin);
     composer->removeRegionSamplingListener(listener);
 }

diff --git a/libs/input/rust/lib.rs b/libs/input/rust/lib.rs
index 5010475..8837469 100644
--- a/libs/input/rust/lib.rs
+++ b/libs/input/rust/lib.rs

@@ -27,6 +27,7 @@
 pub use keyboard_classifier::KeyboardClassifier;
 
 #[cxx::bridge(namespace = "android::input")]
+#[allow(clippy::needless_maybe_sized)]
 #[allow(unsafe_op_in_unsafe_fn)]
 mod ffi {
     #[namespace = "android"]

diff --git a/libs/input/tests/Android.bp b/libs/input/tests/Android.bp
index e9d799e..9c0a41e 100644
--- a/libs/input/tests/Android.bp
+++ b/libs/input/tests/Android.bp

@@ -91,6 +91,7 @@
             },
         },
     },
+    native_coverage: false,
 }
 
 // NOTE: This is a compile time test, and does not need to be

diff --git a/libs/math/include/math/TVecHelpers.h b/libs/math/include/math/TVecHelpers.h
index 0dac662..7278d2d 100644
--- a/libs/math/include/math/TVecHelpers.h
+++ b/libs/math/include/math/TVecHelpers.h

@@ -620,15 +620,10 @@
 }  // namespace details
 }  // namespace android
 
-namespace std {
-    template<template<typename T> class VECTOR, typename T>
-    struct hash<VECTOR<T>> {
-        static constexpr bool IS_VECTOR =
-            std::is_base_of<android::details::TVecUnaryOperators<VECTOR, T>, VECTOR<T>>::value;
-
-        typename std::enable_if<IS_VECTOR, size_t>::type
-        operator()(const VECTOR<T>& v) const {
-            return v.hash();
-        }
-    };
-}
+#define TVECHELPERS_STD_HASH(VECTOR)                  \
+    template <typename T>                             \
+    struct std::hash<VECTOR<T>> {                     \
+        size_t operator()(const VECTOR<T>& v) const { \
+            return v.hash();                          \
+        }                                             \
+    }

diff --git a/libs/math/include/math/mat2.h b/libs/math/include/math/mat2.h
index 3e6cd4c..24c2bad 100644
--- a/libs/math/include/math/mat2.h
+++ b/libs/math/include/math/mat2.h

@@ -373,5 +373,7 @@
 // ----------------------------------------------------------------------------------------
 }  // namespace android
 
+TVECHELPERS_STD_HASH(android::details::TMat22);
+
 #undef PURE
 #undef CONSTEXPR

diff --git a/libs/math/include/math/mat3.h b/libs/math/include/math/mat3.h
index 5c8a9b2..4647a60 100644
--- a/libs/math/include/math/mat3.h
+++ b/libs/math/include/math/mat3.h

@@ -436,5 +436,7 @@
 // ----------------------------------------------------------------------------------------
 }  // namespace android
 
+TVECHELPERS_STD_HASH(android::details::TMat33);
+
 #undef PURE
 #undef CONSTEXPR

diff --git a/libs/math/include/math/mat4.h b/libs/math/include/math/mat4.h
index c630d97..c9e118a 100644
--- a/libs/math/include/math/mat4.h
+++ b/libs/math/include/math/mat4.h

@@ -590,5 +590,7 @@
 // ----------------------------------------------------------------------------------------
 }  // namespace android
 
+TVECHELPERS_STD_HASH(android::details::TMat44);
+
 #undef PURE
 #undef CONSTEXPR

diff --git a/libs/math/include/math/quat.h b/libs/math/include/math/quat.h
index 07573c5..43c8038 100644
--- a/libs/math/include/math/quat.h
+++ b/libs/math/include/math/quat.h

@@ -187,6 +187,8 @@
 // ----------------------------------------------------------------------------------------
 }  // namespace android
 
+TVECHELPERS_STD_HASH(android::details::TQuaternion);
+
 #pragma clang diagnostic pop
 
 #undef PURE

diff --git a/libs/math/include/math/vec2.h b/libs/math/include/math/vec2.h
index e0adb7f..909c77e 100644
--- a/libs/math/include/math/vec2.h
+++ b/libs/math/include/math/vec2.h

@@ -122,4 +122,6 @@
 // ----------------------------------------------------------------------------------------
 }  // namespace android
 
+TVECHELPERS_STD_HASH(android::details::TVec2);
+
 #pragma clang diagnostic pop

diff --git a/libs/math/include/math/vec3.h b/libs/math/include/math/vec3.h
index 21fb684..ff2b3e4 100644
--- a/libs/math/include/math/vec3.h
+++ b/libs/math/include/math/vec3.h

@@ -128,4 +128,6 @@
 // ----------------------------------------------------------------------------------------
 }  // namespace android
 
+TVECHELPERS_STD_HASH(android::details::TVec3);
+
 #pragma clang diagnostic pop

diff --git a/libs/math/include/math/vec4.h b/libs/math/include/math/vec4.h
index 1e279fe..16509c9 100644
--- a/libs/math/include/math/vec4.h
+++ b/libs/math/include/math/vec4.h

@@ -125,4 +125,6 @@
 // ----------------------------------------------------------------------------------------
 }  // namespace android
 
+TVECHELPERS_STD_HASH(android::details::TVec4);
+
 #pragma clang diagnostic pop

diff --git a/libs/nativewindow/AHardwareBuffer.cpp b/libs/nativewindow/AHardwareBuffer.cpp
index 5261287..dd78049 100644
--- a/libs/nativewindow/AHardwareBuffer.cpp
+++ b/libs/nativewindow/AHardwareBuffer.cpp

@@ -300,7 +300,9 @@
       if (result == 0) {
         outPlanes->planeCount = 3;
         outPlanes->planes[0].data = yuvData.y;
-        if (format == AHARDWAREBUFFER_FORMAT_YCbCr_P010) {
+        // P010 is word-aligned 10-bit semiplaner, and YCbCr_422_I is a single interleaved plane
+        if (format == AHARDWAREBUFFER_FORMAT_YCbCr_P010 ||
+            format == AHARDWAREBUFFER_FORMAT_YCbCr_422_I) {
             outPlanes->planes[0].pixelStride = 2;
         } else {
             outPlanes->planes[0].pixelStride = 1;

diff --git a/libs/nativewindow/Android.bp b/libs/nativewindow/Android.bp
index 8558074..a8a86ba 100644
--- a/libs/nativewindow/Android.bp
+++ b/libs/nativewindow/Android.bp

@@ -67,9 +67,6 @@
 
     // Android O
     first_version: "26",
-    export_header_libs: [
-        "libnativewindow_ndk_headers",
-    ],
 }
 
 cc_library {

diff --git a/libs/nativewindow/rust/Android.bp b/libs/nativewindow/rust/Android.bp
index 97740db..d68d6ba 100644
--- a/libs/nativewindow/rust/Android.bp
+++ b/libs/nativewindow/rust/Android.bp

@@ -29,6 +29,8 @@
         "--bitfield-enum=AHardwareBuffer_UsageFlags",
 
         "--allowlist-file=.*/nativewindow/include/.*\\.h",
+        "--allowlist-file=.*/include/cutils/.*\\.h",
+        "--allowlist-file=.*/include_outside_system/cutils/.*\\.h",
         "--blocklist-type",
         "AParcel",
         "--raw-line",
@@ -39,6 +41,7 @@
     ],
     shared_libs: [
         "libbinder_ndk",
+        "libcutils",
         "libnativewindow",
     ],
     rustlibs: [
@@ -66,6 +69,7 @@
     srcs: [":libnativewindow_bindgen_internal"],
     shared_libs: [
         "libbinder_ndk",
+        "libcutils",
         "libnativewindow",
     ],
     rustlibs: [

diff --git a/libs/nativewindow/rust/src/handle.rs b/libs/nativewindow/rust/src/handle.rs
new file mode 100644
index 0000000..c41ab8d
--- /dev/null
+++ b/libs/nativewindow/rust/src/handle.rs

@@ -0,0 +1,243 @@
+// Copyright (C) 2024 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.
+
+use std::{
+    ffi::c_int,
+    mem::forget,
+    os::fd::{BorrowedFd, FromRawFd, IntoRawFd, OwnedFd},
+    ptr::NonNull,
+};
+
+/// Rust wrapper around `native_handle_t`.
+///
+/// This owns the `native_handle_t` and its file descriptors, and will close them and free it when
+/// it is dropped.
+#[derive(Debug)]
+pub struct NativeHandle(NonNull<ffi::native_handle_t>);
+
+impl NativeHandle {
+    /// Creates a new `NativeHandle` with the given file descriptors and integer values.
+    ///
+    /// The `NativeHandle` will take ownership of the file descriptors and close them when it is
+    /// dropped.
+    pub fn new(fds: Vec<OwnedFd>, ints: &[c_int]) -> Option<Self> {
+        let fd_count = fds.len();
+        // SAFETY: native_handle_create doesn't have any safety requirements.
+        let handle = unsafe {
+            ffi::native_handle_create(fd_count.try_into().unwrap(), ints.len().try_into().unwrap())
+        };
+        let handle = NonNull::new(handle)?;
+        for (i, fd) in fds.into_iter().enumerate() {
+            // SAFETY: `handle` must be valid because it was just created, and the array offset is
+            // within the bounds of what we allocated above.
+            unsafe {
+                *(*handle.as_ptr()).data.as_mut_ptr().add(i) = fd.into_raw_fd();
+            }
+        }
+        for (i, value) in ints.iter().enumerate() {
+            // SAFETY: `handle` must be valid because it was just created, and the array offset is
+            // within the bounds of what we allocated above. Note that `data` is uninitialized
+            // until after this so we can't use `slice::from_raw_parts_mut` or similar to create a
+            // reference to it so we use raw pointers arithmetic instead.
+            unsafe {
+                *(*handle.as_ptr()).data.as_mut_ptr().add(fd_count + i) = *value;
+            }
+        }
+        // SAFETY: `handle` must be valid because it was just created.
+        unsafe {
+            ffi::native_handle_set_fdsan_tag(handle.as_ptr());
+        }
+        Some(Self(handle))
+    }
+
+    /// Returns a borrowed view of all the file descriptors in this native handle.
+    pub fn fds(&self) -> Vec<BorrowedFd> {
+        self.data()[..self.fd_count()]
+            .iter()
+            .map(|fd| {
+                // SAFETY: The `native_handle_t` maintains ownership of the file descriptor so it
+                // won't be closed until this `NativeHandle` is destroyed. The `BorrowedFd` will
+                // have a lifetime constrained to that of `&self`, so it can't outlive it.
+                unsafe { BorrowedFd::borrow_raw(*fd) }
+            })
+            .collect()
+    }
+
+    /// Returns the integer values in this native handle.
+    pub fn ints(&self) -> &[c_int] {
+        &self.data()[self.fd_count()..]
+    }
+
+    /// Destroys the `NativeHandle`, taking ownership of the file descriptors it contained.
+    pub fn into_fds(self) -> Vec<OwnedFd> {
+        let fds = self.data()[..self.fd_count()]
+            .iter()
+            .map(|fd| {
+                // SAFETY: The `native_handle_t` has ownership of the file descriptor, and
+                // after this we destroy it without closing the file descriptor so we can take over
+                // ownership of it.
+                unsafe { OwnedFd::from_raw_fd(*fd) }
+            })
+            .collect();
+
+        // SAFETY: Our wrapped `native_handle_t` pointer is always valid, and it won't be accessed
+        // after this because we own it and forget it.
+        unsafe {
+            assert_eq!(ffi::native_handle_delete(self.0.as_ptr()), 0);
+        }
+        // Don't drop self, as that would cause `native_handle_close` to be called and close the
+        // file descriptors.
+        forget(self);
+        fds
+    }
+
+    /// Returns a reference to the underlying `native_handle_t`.
+    fn as_ref(&self) -> &ffi::native_handle_t {
+        // SAFETY: All the ways of creating a `NativeHandle` ensure that the `native_handle_t` is
+        // valid and initialised, and lives as long as the `NativeHandle`. We enforce Rust's
+        // aliasing rules by giving the reference a lifetime matching that of `&self`.
+        unsafe { self.0.as_ref() }
+    }
+
+    /// Returns the number of file descriptors included in the native handle.
+    fn fd_count(&self) -> usize {
+        self.as_ref().numFds.try_into().unwrap()
+    }
+
+    /// Returns the number of integer values included in the native handle.
+    fn int_count(&self) -> usize {
+        self.as_ref().numInts.try_into().unwrap()
+    }
+
+    /// Returns a slice reference for all the used `data` field of the native handle, including both
+    /// file descriptors and integers.
+    fn data(&self) -> &[c_int] {
+        let total_count = self.fd_count() + self.int_count();
+        // SAFETY: The data must have been initialised with this number of elements when the
+        // `NativeHandle` was created.
+        unsafe { self.as_ref().data.as_slice(total_count) }
+    }
+
+    /// Wraps a raw `native_handle_t` pointer, taking ownership of it.
+    ///
+    /// # Safety
+    ///
+    /// `native_handle` must be a valid pointer to a `native_handle_t`, and must not be used
+    ///  anywhere else after calling this method.
+    pub unsafe fn from_raw(native_handle: NonNull<ffi::native_handle_t>) -> Self {
+        Self(native_handle)
+    }
+
+    /// Creates a new `NativeHandle` wrapping a clone of the given `native_handle_t` pointer.
+    ///
+    /// Unlike [`from_raw`](Self::from_raw) this doesn't take ownership of the pointer passed in, so
+    /// the caller remains responsible for closing and freeing it.
+    ///
+    /// # Safety
+    ///
+    /// `native_handle` must be a valid pointer to a `native_handle_t`.
+    pub unsafe fn clone_from_raw(native_handle: NonNull<ffi::native_handle_t>) -> Option<Self> {
+        // SAFETY: The caller promised that `native_handle` was valid.
+        let cloned = unsafe { ffi::native_handle_clone(native_handle.as_ptr()) };
+        NonNull::new(cloned).map(Self)
+    }
+
+    /// Returns a raw pointer to the wrapped `native_handle_t`.
+    ///
+    /// This is only valid as long as this `NativeHandle` exists, so shouldn't be stored. It mustn't
+    /// be closed or deleted.
+    pub fn as_raw(&self) -> NonNull<ffi::native_handle_t> {
+        self.0
+    }
+
+    /// Turns the `NativeHandle` into a raw `native_handle_t`.
+    ///
+    /// The caller takes ownership of the `native_handle_t` and its file descriptors, so is
+    /// responsible for closing and freeing it.
+    pub fn into_raw(self) -> NonNull<ffi::native_handle_t> {
+        let raw = self.0;
+        forget(self);
+        raw
+    }
+}
+
+impl Clone for NativeHandle {
+    fn clone(&self) -> Self {
+        // SAFETY: Our wrapped `native_handle_t` pointer is always valid.
+        unsafe { Self::clone_from_raw(self.0) }.expect("native_handle_clone returned null")
+    }
+}
+
+impl Drop for NativeHandle {
+    fn drop(&mut self) {
+        // SAFETY: Our wrapped `native_handle_t` pointer is always valid, and it won't be accessed
+        // after this because we own it and are being dropped.
+        unsafe {
+            assert_eq!(ffi::native_handle_close(self.0.as_ptr()), 0);
+            assert_eq!(ffi::native_handle_delete(self.0.as_ptr()), 0);
+        }
+    }
+}
+
+// SAFETY: `NativeHandle` owns the `native_handle_t`, which just contains some integers and file
+// descriptors, which aren't tied to any particular thread.
+unsafe impl Send for NativeHandle {}
+
+// SAFETY: A `NativeHandle` can be used from different threads simultaneously, as is is just
+// integers and file descriptors.
+unsafe impl Sync for NativeHandle {}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use std::fs::File;
+
+    #[test]
+    fn create_empty() {
+        let handle = NativeHandle::new(vec![], &[]).unwrap();
+        assert_eq!(handle.fds().len(), 0);
+        assert_eq!(handle.ints(), &[]);
+    }
+
+    #[test]
+    fn create_with_ints() {
+        let handle = NativeHandle::new(vec![], &[1, 2, 42]).unwrap();
+        assert_eq!(handle.fds().len(), 0);
+        assert_eq!(handle.ints(), &[1, 2, 42]);
+    }
+
+    #[test]
+    fn create_with_fd() {
+        let file = File::open("/dev/null").unwrap();
+        let handle = NativeHandle::new(vec![file.into()], &[]).unwrap();
+        assert_eq!(handle.fds().len(), 1);
+        assert_eq!(handle.ints(), &[]);
+    }
+
+    #[test]
+    fn clone() {
+        let file = File::open("/dev/null").unwrap();
+        let original = NativeHandle::new(vec![file.into()], &[42]).unwrap();
+        assert_eq!(original.ints(), &[42]);
+        assert_eq!(original.fds().len(), 1);
+
+        let cloned = original.clone();
+        drop(original);
+
+        assert_eq!(cloned.ints(), &[42]);
+        assert_eq!(cloned.fds().len(), 1);
+
+        drop(cloned);
+    }
+}

diff --git a/libs/nativewindow/rust/src/lib.rs b/libs/nativewindow/rust/src/lib.rs
index dc3f51f..931c311 100644
--- a/libs/nativewindow/rust/src/lib.rs
+++ b/libs/nativewindow/rust/src/lib.rs

@@ -16,7 +16,10 @@
 
 extern crate nativewindow_bindgen as ffi;
 
+mod handle;
 mod surface;
+
+pub use handle::NativeHandle;
 pub use surface::Surface;
 
 pub use ffi::{AHardwareBuffer_Format, AHardwareBuffer_UsageFlags};
@@ -27,11 +30,86 @@
     unstable_api::{status_result, AsNative},
     StatusCode,
 };
-use ffi::{AHardwareBuffer, AHardwareBuffer_readFromParcel, AHardwareBuffer_writeToParcel};
+use ffi::{
+    AHardwareBuffer, AHardwareBuffer_Desc, AHardwareBuffer_readFromParcel,
+    AHardwareBuffer_writeToParcel,
+};
 use std::fmt::{self, Debug, Formatter};
 use std::mem::ManuallyDrop;
 use std::ptr::{self, null_mut, NonNull};
 
+/// Wrapper around a C `AHardwareBuffer_Desc`.
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct HardwareBufferDescription(AHardwareBuffer_Desc);
+
+impl HardwareBufferDescription {
+    /// Creates a new `HardwareBufferDescription` with the given parameters.
+    pub fn new(
+        width: u32,
+        height: u32,
+        layers: u32,
+        format: AHardwareBuffer_Format::Type,
+        usage: AHardwareBuffer_UsageFlags,
+        stride: u32,
+    ) -> Self {
+        Self(AHardwareBuffer_Desc {
+            width,
+            height,
+            layers,
+            format,
+            usage: usage.0,
+            stride,
+            rfu0: 0,
+            rfu1: 0,
+        })
+    }
+
+    /// Returns the width from the buffer description.
+    pub fn width(&self) -> u32 {
+        self.0.width
+    }
+
+    /// Returns the height from the buffer description.
+    pub fn height(&self) -> u32 {
+        self.0.height
+    }
+
+    /// Returns the number from layers from the buffer description.
+    pub fn layers(&self) -> u32 {
+        self.0.layers
+    }
+
+    /// Returns the format from the buffer description.
+    pub fn format(&self) -> AHardwareBuffer_Format::Type {
+        self.0.format
+    }
+
+    /// Returns the usage bitvector from the buffer description.
+    pub fn usage(&self) -> AHardwareBuffer_UsageFlags {
+        AHardwareBuffer_UsageFlags(self.0.usage)
+    }
+
+    /// Returns the stride from the buffer description.
+    pub fn stride(&self) -> u32 {
+        self.0.stride
+    }
+}
+
+impl Default for HardwareBufferDescription {
+    fn default() -> Self {
+        Self(AHardwareBuffer_Desc {
+            width: 0,
+            height: 0,
+            layers: 0,
+            format: 0,
+            usage: 0,
+            stride: 0,
+            rfu0: 0,
+            rfu1: 0,
+        })
+    }
+}
+
 /// Wrapper around an opaque C `AHardwareBuffer`.
 #[derive(PartialEq, Eq)]
 pub struct HardwareBuffer(NonNull<AHardwareBuffer>);
@@ -43,26 +121,9 @@
     /// that the allocation of the given description will never succeed.
     ///
     /// Available since API 29
-    pub fn is_supported(
-        width: u32,
-        height: u32,
-        layers: u32,
-        format: AHardwareBuffer_Format::Type,
-        usage: AHardwareBuffer_UsageFlags,
-        stride: u32,
-    ) -> bool {
-        let buffer_desc = ffi::AHardwareBuffer_Desc {
-            width,
-            height,
-            layers,
-            format,
-            usage: usage.0,
-            stride,
-            rfu0: 0,
-            rfu1: 0,
-        };
-        // SAFETY: *buffer_desc will never be null.
-        let status = unsafe { ffi::AHardwareBuffer_isSupported(&buffer_desc) };
+    pub fn is_supported(buffer_description: &HardwareBufferDescription) -> bool {
+        // SAFETY: The pointer comes from a reference so must be valid.
+        let status = unsafe { ffi::AHardwareBuffer_isSupported(&buffer_description.0) };
 
         status == 1
     }
@@ -74,27 +135,11 @@
     ///
     /// Available since API level 26.
     #[inline]
-    pub fn new(
-        width: u32,
-        height: u32,
-        layers: u32,
-        format: AHardwareBuffer_Format::Type,
-        usage: AHardwareBuffer_UsageFlags,
-    ) -> Option<Self> {
-        let buffer_desc = ffi::AHardwareBuffer_Desc {
-            width,
-            height,
-            layers,
-            format,
-            usage: usage.0,
-            stride: 0,
-            rfu0: 0,
-            rfu1: 0,
-        };
+    pub fn new(buffer_description: &HardwareBufferDescription) -> Option<Self> {
         let mut ptr = ptr::null_mut();
         // SAFETY: The returned pointer is valid until we drop/deallocate it. The function may fail
         // and return a status, but we check it later.
-        let status = unsafe { ffi::AHardwareBuffer_allocate(&buffer_desc, &mut ptr) };
+        let status = unsafe { ffi::AHardwareBuffer_allocate(&buffer_description.0, &mut ptr) };
 
         if status == 0 {
             Some(Self(NonNull::new(ptr).expect("Allocated AHardwareBuffer was null")))
@@ -103,6 +148,50 @@
         }
     }
 
+    /// Creates a `HardwareBuffer` from a native handle.
+    ///
+    /// The native handle is cloned, so this doesn't take ownership of the original handle passed
+    /// in.
+    pub fn create_from_handle(
+        handle: &NativeHandle,
+        buffer_description: &HardwareBufferDescription,
+    ) -> Result<Self, StatusCode> {
+        let mut buffer = ptr::null_mut();
+        // SAFETY: The caller guarantees that `handle` is valid, and the buffer pointer is valid
+        // because it comes from a reference. The method we pass means that
+        // `AHardwareBuffer_createFromHandle` will clone the handle rather than taking ownership of
+        // it.
+        let status = unsafe {
+            ffi::AHardwareBuffer_createFromHandle(
+                &buffer_description.0,
+                handle.as_raw().as_ptr(),
+                ffi::CreateFromHandleMethod_AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_CLONE
+                    .try_into()
+                    .unwrap(),
+                &mut buffer,
+            )
+        };
+        status_result(status)?;
+        Ok(Self(NonNull::new(buffer).expect("Allocated AHardwareBuffer was null")))
+    }
+
+    /// Returns a clone of the native handle of the buffer.
+    ///
+    /// Returns `None` if the operation fails for any reason.
+    pub fn cloned_native_handle(&self) -> Option<NativeHandle> {
+        // 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.
+        let native_handle = unsafe { ffi::AHardwareBuffer_getNativeHandle(self.0.as_ptr()) };
+        NonNull::new(native_handle.cast_mut()).and_then(|native_handle| {
+            // SAFETY: `AHardwareBuffer_getNativeHandle` should have returned a valid pointer which
+            // is valid at least as long as the buffer is, and `clone_from_raw` clones it rather
+            // than taking ownership of it so the original `native_handle` isn't stored.
+            unsafe { NativeHandle::clone_from_raw(native_handle) }
+        })
+    }
+
     /// Adopts the given raw pointer and wraps it in a Rust HardwareBuffer.
     ///
     /// # Safety
@@ -155,37 +244,8 @@
         out_id
     }
 
-    /// Get the width of this buffer
-    pub fn width(&self) -> u32 {
-        self.description().width
-    }
-
-    /// Get the height of this buffer
-    pub fn height(&self) -> u32 {
-        self.description().height
-    }
-
-    /// Get the number of layers of this buffer
-    pub fn layers(&self) -> u32 {
-        self.description().layers
-    }
-
-    /// Get the format of this buffer
-    pub fn format(&self) -> AHardwareBuffer_Format::Type {
-        self.description().format
-    }
-
-    /// Get the usage bitvector of this buffer
-    pub fn usage(&self) -> AHardwareBuffer_UsageFlags {
-        AHardwareBuffer_UsageFlags(self.description().usage)
-    }
-
-    /// Get the stride of this buffer
-    pub fn stride(&self) -> u32 {
-        self.description().stride
-    }
-
-    fn description(&self) -> ffi::AHardwareBuffer_Desc {
+    /// Returns the description of this buffer.
+    pub fn description(&self) -> HardwareBufferDescription {
         let mut buffer_desc = ffi::AHardwareBuffer_Desc {
             width: 0,
             height: 0,
@@ -198,7 +258,7 @@
         };
         // SAFETY: neither the buffer nor AHardwareBuffer_Desc pointers will be null.
         unsafe { ffi::AHardwareBuffer_describe(self.0.as_ref(), &mut buffer_desc) };
-        buffer_desc
+        HardwareBufferDescription(buffer_desc)
     }
 }
 
@@ -281,19 +341,27 @@
 
     #[test]
     fn create_valid_buffer_returns_ok() {
-        let buffer = HardwareBuffer::new(
+        let buffer = HardwareBuffer::new(&HardwareBufferDescription::new(
             512,
             512,
             1,
             AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
             AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
-        );
+            0,
+        ));
         assert!(buffer.is_some());
     }
 
     #[test]
     fn create_invalid_buffer_returns_err() {
-        let buffer = HardwareBuffer::new(512, 512, 1, 0, AHardwareBuffer_UsageFlags(0));
+        let buffer = HardwareBuffer::new(&HardwareBufferDescription::new(
+            512,
+            512,
+            1,
+            0,
+            AHardwareBuffer_UsageFlags(0),
+            0,
+        ));
         assert!(buffer.is_none());
     }
 
@@ -319,39 +387,45 @@
         // SAFETY: The pointer must be valid because it was just allocated successfully, and we
         // don't use it after calling this.
         let buffer = unsafe { HardwareBuffer::from_raw(NonNull::new(raw_buffer_ptr).unwrap()) };
-        assert_eq!(buffer.width(), 1024);
+        assert_eq!(buffer.description().width(), 1024);
     }
 
     #[test]
     fn basic_getters() {
-        let buffer = HardwareBuffer::new(
+        let buffer = HardwareBuffer::new(&HardwareBufferDescription::new(
             1024,
             512,
             1,
             AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
             AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
-        )
+            0,
+        ))
         .expect("Buffer with some basic parameters was not created successfully");
 
-        assert_eq!(buffer.width(), 1024);
-        assert_eq!(buffer.height(), 512);
-        assert_eq!(buffer.layers(), 1);
-        assert_eq!(buffer.format(), AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM);
+        let description = buffer.description();
+        assert_eq!(description.width(), 1024);
+        assert_eq!(description.height(), 512);
+        assert_eq!(description.layers(), 1);
         assert_eq!(
-            buffer.usage(),
+            description.format(),
+            AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM
+        );
+        assert_eq!(
+            description.usage(),
             AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN
         );
     }
 
     #[test]
     fn id_getter() {
-        let buffer = HardwareBuffer::new(
+        let buffer = HardwareBuffer::new(&HardwareBufferDescription::new(
             1024,
             512,
             1,
             AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
             AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
-        )
+            0,
+        ))
         .expect("Buffer with some basic parameters was not created successfully");
 
         assert_ne!(0, buffer.id());
@@ -359,13 +433,14 @@
 
     #[test]
     fn clone() {
-        let buffer = HardwareBuffer::new(
+        let buffer = HardwareBuffer::new(&HardwareBufferDescription::new(
             1024,
             512,
             1,
             AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
             AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
-        )
+            0,
+        ))
         .expect("Buffer with some basic parameters was not created successfully");
         let buffer2 = buffer.clone();
 
@@ -374,13 +449,14 @@
 
     #[test]
     fn into_raw() {
-        let buffer = HardwareBuffer::new(
+        let buffer = HardwareBuffer::new(&HardwareBufferDescription::new(
             1024,
             512,
             1,
             AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
             AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
-        )
+            0,
+        ))
         .expect("Buffer with some basic parameters was not created successfully");
         let buffer2 = buffer.clone();
 
@@ -390,4 +466,26 @@
 
         assert_eq!(remade_buffer, buffer2);
     }
+
+    #[test]
+    fn native_handle_and_back() {
+        let buffer_description = HardwareBufferDescription::new(
+            1024,
+            512,
+            1,
+            AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
+            AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
+            1024,
+        );
+        let buffer = HardwareBuffer::new(&buffer_description)
+            .expect("Buffer with some basic parameters was not created successfully");
+
+        let native_handle =
+            buffer.cloned_native_handle().expect("Failed to get native handle for buffer");
+        let buffer2 = HardwareBuffer::create_from_handle(&native_handle, &buffer_description)
+            .expect("Failed to create buffer from native handle");
+
+        assert_eq!(buffer.description(), buffer_description);
+        assert_eq!(buffer2.description(), buffer_description);
+    }
 }

diff --git a/libs/nativewindow/rust/sys/nativewindow_bindings.h b/libs/nativewindow/rust/sys/nativewindow_bindings.h
index 5689f7d..5046a80 100644
--- a/libs/nativewindow/rust/sys/nativewindow_bindings.h
+++ b/libs/nativewindow/rust/sys/nativewindow_bindings.h

@@ -20,3 +20,5 @@
 #include <android/hdr_metadata.h>
 #include <android/native_window.h>
 #include <android/native_window_aidl.h>
+#include <cutils/native_handle.h>
+#include <vndk/hardware_buffer.h>

diff --git a/libs/nativewindow/tests/benchmark/buffer_benchmarks.rs b/libs/nativewindow/tests/benchmark/buffer_benchmarks.rs
index 876f6c8..73a7e95 100644
--- a/libs/nativewindow/tests/benchmark/buffer_benchmarks.rs
+++ b/libs/nativewindow/tests/benchmark/buffer_benchmarks.rs

@@ -22,13 +22,14 @@
 
 #[inline]
 fn create_720p_buffer() -> HardwareBuffer {
-    HardwareBuffer::new(
+    HardwareBuffer::new(&HardwareBufferDescription::new(
         1280,
         720,
         1,
         AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
         AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
-    )
+        0,
+    ))
     .unwrap()
 }
 
@@ -51,7 +52,7 @@
     // underlying call to AHardwareBuffer_describe.
     c.bench_with_input(BenchmarkId::new("desc", "buffer"), &buffer, |b, buffer| {
         b.iter(|| {
-            buffer.width();
+            buffer.description().width();
         })
     });
 }

diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index ffb6cdb..b0c6e44 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp

@@ -388,8 +388,8 @@
         }
     }
 
-    const uint64_t usage = static_cast<uint64_t>(
-            android_convertGralloc1To0Usage(inProducerUsage, inConsumerUsage));
+    const uint64_t usage = static_cast<uint64_t>(ANDROID_NATIVE_UNSIGNED_CAST(
+            android_convertGralloc1To0Usage(inProducerUsage, inConsumerUsage)));
 
     auto result = getBufferMapper().lock(handle, usage, rect, base::unique_fd{fenceFd});
 

diff --git a/libs/ui/GraphicBufferMapper.cpp b/libs/ui/GraphicBufferMapper.cpp
index b6ab2f5..7b5a27d 100644
--- a/libs/ui/GraphicBufferMapper.cpp
+++ b/libs/ui/GraphicBufferMapper.cpp

@@ -208,8 +208,10 @@
 status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle, uint64_t producerUsage,
                                         uint64_t consumerUsage, const Rect& bounds, void** vaddr,
                                         int fenceFd) {
-    return lockAsync(handle, android_convertGralloc1To0Usage(producerUsage, consumerUsage), bounds,
-                     vaddr, fenceFd);
+    return lockAsync(handle,
+                     ANDROID_NATIVE_UNSIGNED_CAST(
+                             android_convertGralloc1To0Usage(producerUsage, consumerUsage)),
+                     bounds, vaddr, fenceFd);
 }
 
 status_t GraphicBufferMapper::lockAsyncYCbCr(buffer_handle_t handle, uint32_t usage,

diff --git a/libs/vibrator/Android.bp b/libs/vibrator/Android.bp
index 2af51a7..d3b3a73 100644
--- a/libs/vibrator/Android.bp
+++ b/libs/vibrator/Android.bp

@@ -24,6 +24,10 @@
 cc_defaults {
     name: "libvibrator_defaults",
 
+    defaults: [
+        "aconfig_lib_cc_shared_link.defaults",
+    ],
+
     cflags: [
         "-Wall",
         "-Werror",
@@ -50,9 +54,11 @@
         "libbinder",
         "liblog",
         "libutils",
+        "server_configurable_flags",
     ],
 
     whole_static_libs: [
+        "android.os.vibrator.flags-aconfig-cc",
         "libvibratorutils",
     ],
 
@@ -79,8 +85,14 @@
     vendor_available: true,
     double_loadable: true,
 
+    static_libs: [
+        "android.os.vibrator.flags-aconfig-cc",
+    ],
+
     shared_libs: [
+        "liblog",
         "libutils",
+        "server_configurable_flags",
     ],
 
     srcs: [
@@ -89,6 +101,7 @@
 
     visibility: [
         "//frameworks/native/libs/vibrator",
+        "//frameworks/native/libs/vibrator/tests",
         "//frameworks/av/media/libeffects/hapticgenerator",
     ],
 }

diff --git a/libs/vibrator/ExternalVibrationUtils.cpp b/libs/vibrator/ExternalVibrationUtils.cpp
index 761ac1b..706f3d7 100644
--- a/libs/vibrator/ExternalVibrationUtils.cpp
+++ b/libs/vibrator/ExternalVibrationUtils.cpp

@@ -15,6 +15,9 @@
  */
 #include <cstring>
 
+#include <android_os_vibrator.h>
+
+#include <algorithm>
 #include <math.h>
 
 #include <vibrator/ExternalVibrationUtils.h>
@@ -25,8 +28,9 @@
 static constexpr float HAPTIC_SCALE_VERY_LOW_RATIO = 2.0f / 3.0f;
 static constexpr float HAPTIC_SCALE_LOW_RATIO = 3.0f / 4.0f;
 static constexpr float HAPTIC_MAX_AMPLITUDE_FLOAT = 1.0f;
+static constexpr float SCALE_GAMMA = 0.65f; // Same as VibrationEffect.SCALE_GAMMA
 
-float getHapticScaleGamma(HapticLevel level) {
+float getOldHapticScaleGamma(HapticLevel level) {
     switch (level) {
     case HapticLevel::VERY_LOW:
         return 2.0f;
@@ -41,7 +45,7 @@
     }
 }
 
-float getHapticMaxAmplitudeRatio(HapticLevel level) {
+float getOldHapticMaxAmplitudeRatio(HapticLevel level) {
     switch (level) {
     case HapticLevel::VERY_LOW:
         return HAPTIC_SCALE_VERY_LOW_RATIO;
@@ -56,6 +60,52 @@
     }
 }
 
+/* Same as VibrationScaler.SCALE_LEVEL_* */
+float getHapticScaleFactor(HapticLevel level) {
+    switch (level) {
+        case HapticLevel::VERY_LOW:
+            return 0.6f;
+        case HapticLevel::LOW:
+            return 0.8f;
+        case HapticLevel::HIGH:
+            return 1.2f;
+        case HapticLevel::VERY_HIGH:
+            return 1.4f;
+        default:
+            return 1.0f;
+    }
+}
+
+float applyOldHapticScale(float value, float gamma, float maxAmplitudeRatio) {
+    float sign = value >= 0 ? 1.0 : -1.0;
+    return powf(fabsf(value / HAPTIC_MAX_AMPLITUDE_FLOAT), gamma)
+                * maxAmplitudeRatio * HAPTIC_MAX_AMPLITUDE_FLOAT * sign;
+}
+
+float applyNewHapticScale(float value, float scaleFactor) {
+    float scale = powf(scaleFactor, 1.0f / SCALE_GAMMA);
+    if (scaleFactor <= 1) {
+        // Scale down is simply a gamma corrected application of scaleFactor to the intensity.
+        // Scale up requires a different curve to ensure the intensity will not become > 1.
+        return value * scale;
+    }
+
+    float sign = value >= 0 ? 1.0f : -1.0f;
+    float extraScale = powf(scaleFactor, 4.0f - scaleFactor);
+    float x = fabsf(value) * scale * extraScale;
+    float maxX = scale * extraScale; // scaled x for intensity == 1
+
+    float expX = expf(x);
+    float expMaxX = expf(maxX);
+
+    // Using f = tanh as the scale up function so the max value will converge.
+    // a = 1/f(maxX), used to scale f so that a*f(maxX) = 1 (the value will converge to 1).
+    float a = (expMaxX + 1.0f) / (expMaxX - 1.0f);
+    float fx = (expX - 1.0f) / (expX + 1.0f);
+
+    return sign * std::clamp(a * fx, 0.0f, 1.0f);
+}
+
 void applyHapticScale(float* buffer, size_t length, HapticScale scale) {
     if (scale.isScaleMute()) {
         memset(buffer, 0, length * sizeof(float));
@@ -65,15 +115,18 @@
         return;
     }
     HapticLevel hapticLevel = scale.getLevel();
+    float scaleFactor = getHapticScaleFactor(hapticLevel);
     float adaptiveScaleFactor = scale.getAdaptiveScaleFactor();
-    float gamma = getHapticScaleGamma(hapticLevel);
-    float maxAmplitudeRatio = getHapticMaxAmplitudeRatio(hapticLevel);
+    float oldGamma = getOldHapticScaleGamma(hapticLevel);
+    float oldMaxAmplitudeRatio = getOldHapticMaxAmplitudeRatio(hapticLevel);
 
     for (size_t i = 0; i < length; i++) {
         if (hapticLevel != HapticLevel::NONE) {
-            float sign = buffer[i] >= 0 ? 1.0 : -1.0;
-            buffer[i] = powf(fabsf(buffer[i] / HAPTIC_MAX_AMPLITUDE_FLOAT), gamma)
-                        * maxAmplitudeRatio * HAPTIC_MAX_AMPLITUDE_FLOAT * sign;
+            if (android_os_vibrator_fix_audio_coupled_haptics_scaling()) {
+                buffer[i] = applyNewHapticScale(buffer[i], scaleFactor);
+            } else {
+                buffer[i] = applyOldHapticScale(buffer[i], oldGamma, oldMaxAmplitudeRatio);
+            }
         }
 
         if (adaptiveScaleFactor != 1.0f) {

diff --git a/libs/vibrator/TEST_MAPPING b/libs/vibrator/TEST_MAPPING
new file mode 100644
index 0000000..d782b43
--- /dev/null
+++ b/libs/vibrator/TEST_MAPPING

@@ -0,0 +1,7 @@
+{
+  "postsubmit": [
+    {
+      "name": "libvibrator_test"
+    }
+  ]
+}

diff --git a/libs/vibrator/tests/Android.bp b/libs/vibrator/tests/Android.bp
new file mode 100644
index 0000000..2921a62
--- /dev/null
+++ b/libs/vibrator/tests/Android.bp

@@ -0,0 +1,53 @@
+// Copyright (C) 2024 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.
+package {
+    default_team: "trendy_team_haptics_framework",
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
+cc_test {
+    name: "libvibrator_test",
+    test_suites: ["general-tests"],
+    defaults: [
+        "aconfig_lib_cc_shared_link.defaults",
+    ],
+    srcs: [
+        "ExternalVibrationTest.cpp",
+        "ExternalVibrationUtilsTest.cpp",
+    ],
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wextra",
+    ],
+    static_libs: [
+        "android.os.vibrator.flags-aconfig-cc",
+        "libflagtest",
+        "libgtest",
+        "liblog",
+        "libvibrator",
+        "libvibratorutils",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "libutils",
+        "server_configurable_flags",
+    ],
+}

diff --git a/libs/vibrator/tests/ExternalVibrationTest.cpp b/libs/vibrator/tests/ExternalVibrationTest.cpp
new file mode 100644
index 0000000..3141380
--- /dev/null
+++ b/libs/vibrator/tests/ExternalVibrationTest.cpp

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2024 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 <binder/Parcel.h>
+#include <gtest/gtest.h>
+#include <vibrator/ExternalVibration.h>
+
+using namespace android;
+using namespace testing;
+
+using HapticLevel = os::HapticLevel;
+using ScaleLevel = os::ExternalVibrationScale::ScaleLevel;
+
+class TestVibrationController : public os::IExternalVibrationController {
+public:
+    explicit TestVibrationController() {}
+    IBinder *onAsBinder() override { return nullptr; }
+    binder::Status mute(/*out*/ bool *ret) override {
+        *ret = false;
+        return binder::Status::ok();
+    };
+    binder::Status unmute(/*out*/ bool *ret) override {
+        *ret = false;
+        return binder::Status::ok();
+    };
+};
+
+class ExternalVibrationTest : public Test {
+protected:
+    HapticLevel toHapticLevel(ScaleLevel level) {
+        os::ExternalVibrationScale externalVibrationScale;
+        externalVibrationScale.scaleLevel = level;
+        os::HapticScale hapticScale =
+                os::ExternalVibration::externalVibrationScaleToHapticScale(externalVibrationScale);
+        return hapticScale.getLevel();
+    }
+};
+
+TEST_F(ExternalVibrationTest, TestReadAndWriteToParcel) {
+    int32_t uid = 1;
+    std::string pkg("package.name");
+    audio_attributes_t originalAttrs;
+    originalAttrs.content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+    originalAttrs.usage = AUDIO_USAGE_ASSISTANCE_SONIFICATION;
+    originalAttrs.source = AUDIO_SOURCE_VOICE_COMMUNICATION;
+    originalAttrs.flags = AUDIO_FLAG_BYPASS_MUTE;
+    sp<TestVibrationController> vibrationController = new TestVibrationController();
+    ASSERT_NE(vibrationController, nullptr);
+    sp<os::ExternalVibration> original =
+            new os::ExternalVibration(uid, pkg, originalAttrs, vibrationController);
+    ASSERT_NE(original, nullptr);
+    EXPECT_EQ(original->getUid(), uid);
+    EXPECT_EQ(original->getPackage(), pkg);
+    EXPECT_EQ(original->getAudioAttributes().content_type, originalAttrs.content_type);
+    EXPECT_EQ(original->getAudioAttributes().usage, originalAttrs.usage);
+    EXPECT_EQ(original->getAudioAttributes().source, originalAttrs.source);
+    EXPECT_EQ(original->getAudioAttributes().flags, originalAttrs.flags);
+    EXPECT_EQ(original->getController(), vibrationController);
+    audio_attributes_t defaultAttrs;
+    defaultAttrs.content_type = AUDIO_CONTENT_TYPE_UNKNOWN;
+    defaultAttrs.usage = AUDIO_USAGE_UNKNOWN;
+    defaultAttrs.source = AUDIO_SOURCE_DEFAULT;
+    defaultAttrs.flags = AUDIO_FLAG_NONE;
+    sp<os::ExternalVibration> parceled =
+            new os::ExternalVibration(0, std::string(""), defaultAttrs, nullptr);
+    ASSERT_NE(parceled, nullptr);
+    Parcel parcel;
+    original->writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    parceled->readFromParcel(&parcel);
+    EXPECT_EQ(parceled->getUid(), uid);
+    EXPECT_EQ(parceled->getPackage(), pkg);
+    EXPECT_EQ(parceled->getAudioAttributes().content_type, originalAttrs.content_type);
+    EXPECT_EQ(parceled->getAudioAttributes().usage, originalAttrs.usage);
+    EXPECT_EQ(parceled->getAudioAttributes().source, originalAttrs.source);
+    EXPECT_EQ(parceled->getAudioAttributes().flags, originalAttrs.flags);
+    // TestVibrationController does not implement onAsBinder, skip controller parcel in this test.
+}
+
+TEST_F(ExternalVibrationTest, TestExternalVibrationScaleToHapticScale) {
+    os::ExternalVibrationScale externalVibrationScale;
+    externalVibrationScale.scaleLevel = ScaleLevel::SCALE_HIGH;
+    externalVibrationScale.adaptiveHapticsScale = 0.8f;
+    os::HapticScale hapticScale =
+            os::ExternalVibration::externalVibrationScaleToHapticScale(externalVibrationScale);
+    // Check scale factor is forwarded.
+    EXPECT_EQ(hapticScale.getLevel(), HapticLevel::HIGH);
+    EXPECT_EQ(hapticScale.getAdaptiveScaleFactor(), 0.8f);
+    // Check conversion for all levels.
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_MUTE), HapticLevel::MUTE);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_VERY_LOW), HapticLevel::VERY_LOW);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_LOW), HapticLevel::LOW);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_NONE), HapticLevel::NONE);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_HIGH), HapticLevel::HIGH);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_VERY_HIGH), HapticLevel::VERY_HIGH);
+}

diff --git a/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp b/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp
new file mode 100644
index 0000000..3d8dd9c
--- /dev/null
+++ b/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp

@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2024 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_os_vibrator.h>
+#include <flag_macros.h>
+#include <gtest/gtest.h>
+#include <vibrator/ExternalVibrationUtils.h>
+
+#include "test_utils.h"
+
+#define FLAG_NS android::os::vibrator
+
+using namespace android;
+using namespace testing;
+
+using HapticScale = os::HapticScale;
+using HapticLevel = os::HapticLevel;
+
+static constexpr float TEST_TOLERANCE = 1e-2f;
+static constexpr size_t TEST_BUFFER_LENGTH = 4;
+static float TEST_BUFFER[TEST_BUFFER_LENGTH] = { 1, -1, 0.5f, -0.2f };
+
+class ExternalVibrationUtilsTest : public Test {
+public:
+    void SetUp() override {
+        std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(mBuffer));
+    }
+
+protected:
+    void scaleBuffer(HapticLevel hapticLevel) {
+        scaleBuffer(HapticScale(hapticLevel), 0 /* limit */);
+    }
+
+    void scaleBuffer(HapticLevel hapticLevel, float adaptiveScaleFactor) {
+        scaleBuffer(hapticLevel, adaptiveScaleFactor, 0 /* limit */);
+    }
+
+    void scaleBuffer(HapticLevel hapticLevel, float adaptiveScaleFactor, float limit) {
+        scaleBuffer(HapticScale(hapticLevel, adaptiveScaleFactor), limit);
+    }
+
+    void scaleBuffer(HapticScale hapticScale, float limit) {
+        std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(mBuffer));
+        os::scaleHapticData(&mBuffer[0], TEST_BUFFER_LENGTH, hapticScale, limit);
+    }
+
+    float mBuffer[TEST_BUFFER_LENGTH];
+};
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestLegacyScaleMute,
+        REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expected), std::end(expected), 0);
+
+    scaleBuffer(HapticLevel::MUTE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestFixedScaleMute,
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expected), std::end(expected), 0);
+
+    scaleBuffer(HapticLevel::MUTE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestLegacyScaleNone,
+        REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(expected));
+
+    scaleBuffer(HapticLevel::NONE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestFixedScaleNone,
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(expected));
+
+    scaleBuffer(HapticLevel::NONE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+    ExternalVibrationUtilsTest,
+    TestLegacyScaleToHapticLevel,
+    REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.84f, -0.66f };
+    scaleBuffer(HapticLevel::VERY_HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.7f, -0.44f };
+    scaleBuffer(HapticLevel::HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.75f, -0.75f, 0.26f, -0.06f };
+    scaleBuffer(HapticLevel::LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.66f, -0.66f, 0.16f, -0.02f };
+    scaleBuffer(HapticLevel::VERY_LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestFixedScaleToHapticLevel,
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.79f, -0.39f };
+    scaleBuffer(HapticLevel::VERY_HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.62f, -0.27f };
+    scaleBuffer(HapticLevel::HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.70f, -0.70f, 0.35f, -0.14f };
+    scaleBuffer(HapticLevel::LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.45f, -0.45f, 0.22f, -0.09f };
+    scaleBuffer(HapticLevel::VERY_LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestAdaptiveScaleFactorAppliedAfterLegacyScale,
+        REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    // Haptic level scale up then adaptive scale down
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 0.2, -0.2, 0.16f, -0.13f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale up then adaptive scale up
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1.5f, -1.5f, 1.06f, -0.67f };
+    scaleBuffer(HapticLevel::HIGH, 1.5f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale down
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.45f, -0.45f, 0.15f, -0.04f };
+    scaleBuffer(HapticLevel::LOW, 0.6f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale up
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 1.33f, -1.33f, 0.33f, -0.05f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestAdaptiveScaleFactorAppliedAfterFixedScale,
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    // Haptic level scale up then adaptive scale down
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 0.2, -0.2, 0.16f, -0.07f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale up then adaptive scale up
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1.5f, -1.5f, 0.93f, -0.41f };
+    scaleBuffer(HapticLevel::HIGH, 1.5f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale down
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.42f, -0.42f, 0.21f, -0.08f };
+    scaleBuffer(HapticLevel::LOW, 0.6f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale up
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.91f, -0.91f, 0.45f, -0.18f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestLimitAppliedAfterLegacyScale,
+        REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    // Scaled = { 0.2, -0.2, 0.16f, -0.13f };
+    float expectedClippedVeryHigh[TEST_BUFFER_LENGTH] = { 0.15f, -0.15f, 0.15f, -0.13f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */, 0.15f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Scaled = { 1, -1, 0.5f, -0.2f };
+    float expectedClippedVeryLow[TEST_BUFFER_LENGTH] = { 0.7f, -0.7f, 0.33f, -0.05f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */, 0.7f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest,
+        TestLimitAppliedAfterFixedScale,
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling))
+) {
+    // Scaled = { 0.2, -0.2, 0.16f, -0.13f };
+    float expectedClippedVeryHigh[TEST_BUFFER_LENGTH] = { 0.15f, -0.15f, 0.15f, -0.07f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */, 0.15f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Scaled = { 1, -1, 0.5f, -0.2f };
+    float expectedClippedVeryLow[TEST_BUFFER_LENGTH] = { 0.7f, -0.7f, 0.45f, -0.18f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */, 0.7f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}

diff --git a/libs/vibrator/tests/test_utils.h b/libs/vibrator/tests/test_utils.h
new file mode 100644
index 0000000..f491ea1
--- /dev/null
+++ b/libs/vibrator/tests/test_utils.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+#ifndef LIBVIBRATOR_TEST_UTILS_H
+#define LIBVIBRATOR_TEST_UTILS_H
+
+#include <gtest/gtest.h>
+
+#if !defined(EXPECT_FLOATS_NEARLY_EQ)
+#define EXPECT_FLOATS_NEARLY_EQ(expected, actual, length, epsilon)              \
+        for (size_t i = 0; i < length; i++) {                                   \
+            EXPECT_NEAR(expected[i], actual[i], epsilon) << " at Index: " << i; \
+        }
+#else
+#error Macro EXPECT_FLOATS_NEARLY_EQ already defined
+#endif
+
+#endif //LIBVIBRATOR_TEST_UTILS_H

diff --git a/opengl/Android.bp b/opengl/Android.bp
index 4454f36..37dc931 100644
--- a/opengl/Android.bp
+++ b/opengl/Android.bp

@@ -30,6 +30,10 @@
     to: "",
     srcs: ["include/EGL/**/*.h"],
     license: "include/EGL/NOTICE",
+    // eglext.h is not self-contained. Safe to skip C-compat verification
+    // though since upstream also cares about C compatibility, and the header is
+    // auto-generated anyway.
+    skip_verification: true,
 }
 
 ndk_headers {
@@ -38,6 +42,10 @@
     to: "",
     srcs: ["include/GLES/**/*.h"],
     license: "include/GLES/NOTICE",
+    // glext.h is not self-contained. Safe to skip C-compat verification
+    // though since upstream also cares about C compatibility, and the header is
+    // auto-generated anyway.
+    skip_verification: true,
 }
 
 ndk_headers {
@@ -46,6 +54,10 @@
     to: "",
     srcs: ["include/GLES2/**/*.h"],
     license: "include/GLES2/NOTICE",
+    // gl2ext.h is not self-contained. Safe to skip C-compat verification
+    // though since upstream also cares about C compatibility, and the header is
+    // auto-generated anyway.
+    skip_verification: true,
 }
 
 ndk_headers {

diff --git a/opengl/OWNERS b/opengl/OWNERS
index 3d60a1d..645a578 100644
--- a/opengl/OWNERS
+++ b/opengl/OWNERS

@@ -2,5 +2,4 @@
 cnorthrop@google.com
 ianelliott@google.com
 jessehall@google.com
-lpy@google.com
-vantablack@google.com
+tomnom@google.com

diff --git a/opengl/libs/Android.bp b/opengl/libs/Android.bp
index 16de390..5159ffe 100644
--- a/opengl/libs/Android.bp
+++ b/opengl/libs/Android.bp

@@ -40,9 +40,6 @@
     symbol_file: "libEGL.map.txt",
     first_version: "9",
     unversioned_until: "current",
-    export_header_libs: [
-        "libEGL_headers",
-    ],
 }
 
 ndk_library {
@@ -50,9 +47,6 @@
     symbol_file: "libGLESv1_CM.map.txt",
     first_version: "9",
     unversioned_until: "current",
-    export_header_libs: [
-        "libGLESv1_CM_headers",
-    ],
 }
 
 ndk_library {
@@ -60,9 +54,6 @@
     symbol_file: "libGLESv2.map.txt",
     first_version: "9",
     unversioned_until: "current",
-    export_header_libs: [
-        "libGLESv2_headers",
-    ],
 }
 
 ndk_library {
@@ -70,9 +61,6 @@
     symbol_file: "libGLESv3.map.txt",
     first_version: "18",
     unversioned_until: "current",
-    export_header_libs: [
-        "libGLESv3_headers",
-    ],
 }
 
 cc_defaults {

diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index ec7b190..bf0e38e 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp

@@ -270,7 +270,7 @@
         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(),
+        LOG_ALWAYS_FATAL_IF(android::GraphicsEnv::getInstance().getDriverNamespace() && !hnd,
                             "couldn't find an OpenGL ES implementation from %s",
                             android::GraphicsEnv::getInstance().getDriverPath().c_str());
     }

diff --git a/services/gpuservice/bpfprogs/Android.bp b/services/gpuservice/bpfprogs/Android.bp
index 680b291..a391c81 100644
--- a/services/gpuservice/bpfprogs/Android.bp
+++ b/services/gpuservice/bpfprogs/Android.bp

@@ -24,9 +24,4 @@
 bpf {
     name: "gpuMem.o",
     srcs: ["gpuMem.c"],
-    btf: true,
-    cflags: [
-        "-Wall",
-        "-Werror",
-    ],
 }

diff --git a/services/gpuservice/gpuwork/bpfprogs/Android.bp b/services/gpuservice/gpuwork/bpfprogs/Android.bp
index fe45c98..2e444fe 100644
--- a/services/gpuservice/gpuwork/bpfprogs/Android.bp
+++ b/services/gpuservice/gpuwork/bpfprogs/Android.bp

@@ -20,11 +20,7 @@
     name: "gpuWork.o",
     srcs: ["gpuWork.c"],
     cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wformat",
         "-Wthread-safety",
-        "-Wunused",
         "-Wunreachable-code",
     ],
 }

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0
new file mode 100644
index 0000000..120a34d
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1
new file mode 100644
index 0000000..92d5bdf
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10
new file mode 100644
index 0000000..c044c84
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11
new file mode 100644
index 0000000..430552e
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12
new file mode 100644
index 0000000..f7849bb
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13
new file mode 100644
index 0000000..2f0a655
--- /dev/null
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14
new file mode 100644
index 0000000..bd8fb01
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15
new file mode 100644
index 0000000..29aa2b1
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16
new file mode 100644
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17
new file mode 100644
index 0000000..db281e1
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18
new file mode 100644
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2
new file mode 100644
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8
new file mode 100644
index 0000000..fdaaf31
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8
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diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9
new file mode 100644
index 0000000..a197c6a
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9
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diff --git a/services/inputflinger/dispatcher/trace/InputTracer.h b/services/inputflinger/dispatcher/trace/InputTracer.h
index cb525a4..96e619c 100644
--- a/services/inputflinger/dispatcher/trace/InputTracer.h
+++ b/services/inputflinger/dispatcher/trace/InputTracer.h

@@ -65,10 +65,10 @@
         void onEventProcessingComplete(nsecs_t processingTimestamp);
 
         InputTracer& tracer;
-        std::vector<const TracedEvent> events;
+        std::vector<TracedEvent> events;
         bool isEventProcessingComplete{false};
         // A queue to hold dispatch args from being traced until event processing is complete.
-        std::vector<const WindowDispatchArgs> pendingDispatchArgs;
+        std::vector<WindowDispatchArgs> pendingDispatchArgs;
         // The metadata should not be modified after event processing is complete.
         TracedEventMetadata metadata{};
     };

diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index a383490..64df226 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp

@@ -981,8 +981,9 @@
         viewportChanged = mViewport != newViewport;
     }
 
+    const bool deviceModeChanged = mDeviceMode != oldDeviceMode;
     bool skipViewportUpdate = false;
-    if (viewportChanged) {
+    if (viewportChanged || deviceModeChanged) {
         const bool viewportOrientationChanged = mViewport.orientation != newViewport.orientation;
         const bool viewportDisplayIdChanged = mViewport.displayId != newViewport.displayId;
         mViewport = newViewport;
@@ -1024,7 +1025,6 @@
     }
 
     // If moving between pointer modes, need to reset some state.
-    bool deviceModeChanged = mDeviceMode != oldDeviceMode;
     if (deviceModeChanged) {
         mOrientedRanges.clear();
     }

diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index cf0d46a..18b6c5e 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp

@@ -116,4 +116,5 @@
         unit_test: true,
     },
     test_suites: ["device-tests"],
+    native_coverage: false,
 }

diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index e6367b7..93fae9b 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp

@@ -56,6 +56,7 @@
 
 using namespace ftl::flag_operators;
 using testing::AllOf;
+using testing::VariantWith;
 using std::chrono_literals::operator""ms;
 using std::chrono_literals::operator""s;
 
@@ -4532,15 +4533,15 @@
     void prepareButtons();
     void prepareAxes(int axes);
 
-    void processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
-    void processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
-    void processUp(SingleTouchInputMapper& mappery);
-    void processPressure(SingleTouchInputMapper& mapper, int32_t pressure);
-    void processToolMajor(SingleTouchInputMapper& mapper, int32_t toolMajor);
-    void processDistance(SingleTouchInputMapper& mapper, int32_t distance);
-    void processTilt(SingleTouchInputMapper& mapper, int32_t tiltX, int32_t tiltY);
-    void processKey(SingleTouchInputMapper& mapper, int32_t code, int32_t value);
-    void processSync(SingleTouchInputMapper& mapper);
+    std::list<NotifyArgs> processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
+    std::list<NotifyArgs> processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
+    std::list<NotifyArgs> processUp(SingleTouchInputMapper& mappery);
+    std::list<NotifyArgs> processPressure(SingleTouchInputMapper& mapper, int32_t pressure);
+    std::list<NotifyArgs> processToolMajor(SingleTouchInputMapper& mapper, int32_t toolMajor);
+    std::list<NotifyArgs> processDistance(SingleTouchInputMapper& mapper, int32_t distance);
+    std::list<NotifyArgs> processTilt(SingleTouchInputMapper& mapper, int32_t tiltX, int32_t tiltY);
+    std::list<NotifyArgs> processKey(SingleTouchInputMapper& mapper, int32_t code, int32_t value);
+    std::list<NotifyArgs> processSync(SingleTouchInputMapper& mapper);
 };
 
 void SingleTouchInputMapperTest::prepareButtons() {
@@ -4570,47 +4571,57 @@
     }
 }
 
-void SingleTouchInputMapperTest::processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processDown(SingleTouchInputMapper& mapper,
+                                                              int32_t x, int32_t y) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 1);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processMove(SingleTouchInputMapper& mapper,
+                                                              int32_t x, int32_t y) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processUp(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 0);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processUp(SingleTouchInputMapper& mapper) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 0);
 }
 
-void SingleTouchInputMapperTest::processPressure(SingleTouchInputMapper& mapper, int32_t pressure) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_PRESSURE, pressure);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processPressure(SingleTouchInputMapper& mapper,
+                                                                  int32_t pressure) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_PRESSURE, pressure);
 }
 
-void SingleTouchInputMapperTest::processToolMajor(SingleTouchInputMapper& mapper,
-                                                  int32_t toolMajor) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processToolMajor(SingleTouchInputMapper& mapper,
+                                                                   int32_t toolMajor) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
 }
 
-void SingleTouchInputMapperTest::processDistance(SingleTouchInputMapper& mapper, int32_t distance) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_DISTANCE, distance);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processDistance(SingleTouchInputMapper& mapper,
+                                                                  int32_t distance) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_DISTANCE, distance);
 }
 
-void SingleTouchInputMapperTest::processTilt(SingleTouchInputMapper& mapper, int32_t tiltX,
-                                             int32_t tiltY) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_X, tiltX);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_Y, tiltY);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processTilt(SingleTouchInputMapper& mapper,
+                                                              int32_t tiltX, int32_t tiltY) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_X, tiltX);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_Y, tiltY);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processKey(SingleTouchInputMapper& mapper, int32_t code,
-                                            int32_t value) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processKey(SingleTouchInputMapper& mapper,
+                                                             int32_t code, int32_t value) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
 }
 
-void SingleTouchInputMapperTest::processSync(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processSync(SingleTouchInputMapper& mapper) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 }
 
 TEST_F(SingleTouchInputMapperTest, GetSources_WhenDeviceTypeIsNotSpecifiedAndNotACursor_ReturnsPointer) {
@@ -4701,6 +4712,42 @@
     ASSERT_FALSE(flags[1]);
 }
 
+TEST_F(SingleTouchInputMapperTest, DeviceTypeChange_RecalculatesRawToDisplayTransform) {
+    prepareDisplay(ui::ROTATION_0);
+    prepareAxes(POSITION);
+    addConfigurationProperty("touch.deviceType", "touchScreen");
+    SingleTouchInputMapper& mapper = constructAndAddMapper<SingleTouchInputMapper>();
+
+    const int32_t x = 900;
+    const int32_t y = 75;
+    std::list<NotifyArgs> args;
+    args += processDown(mapper, x, y);
+    args += processSync(mapper);
+
+    // Assert that motion event is received in display coordinate space for deviceType touchScreen.
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                              WithCoords(toDisplayX(x), toDisplayY(y))))));
+
+    // Add device type association after the device was created.
+    mFakePolicy->addDeviceTypeAssociation(DEVICE_LOCATION, "touchNavigation");
+    // Send update to the mapper.
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               InputReaderConfiguration::Change::DEVICE_TYPE /*changes*/);
+
+    args.clear();
+    args += processDown(mapper, x, y);
+    args += processSync(mapper);
+
+    // Assert that motion event is received in raw coordinate space for deviceType touchNavigation.
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                              WithCoords(x - RAW_X_MIN, y - RAW_Y_MIN)))));
+}
+
 TEST_F(SingleTouchInputMapperTest, Process_WhenVirtualKeyIsPressedAndReleasedNormally_SendsKeyDownAndKeyUp) {
     addConfigurationProperty("touch.deviceType", "touchScreen");
     prepareDisplay(ui::ROTATION_0);

diff --git a/services/inputflinger/tests/InputTracingTest.cpp b/services/inputflinger/tests/InputTracingTest.cpp
index 2ccd93e..3cc4bdd 100644
--- a/services/inputflinger/tests/InputTracingTest.cpp
+++ b/services/inputflinger/tests/InputTracingTest.cpp

@@ -133,8 +133,8 @@
         mDispatcher->setFocusedWindow(request);
     }
 
-    void tapAndExpect(const std::vector<const sp<FakeWindowHandle>>& windows,
-                      Level inboundTraceLevel, Level dispatchTraceLevel, InputTraceSession& s) {
+    void tapAndExpect(const std::vector<sp<FakeWindowHandle>>& windows, Level inboundTraceLevel,
+                      Level dispatchTraceLevel, InputTraceSession& s) {
         const auto down = MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
                                   .pointer(PointerBuilder(0, ToolType::FINGER).x(100).y(110))
                                   .build();
@@ -156,7 +156,7 @@
         }
     }
 
-    void keypressAndExpect(const std::vector<const sp<FakeWindowHandle>>& windows,
+    void keypressAndExpect(const std::vector<sp<FakeWindowHandle>>& windows,
                            Level inboundTraceLevel, Level dispatchTraceLevel,
                            InputTraceSession& s) {
         const auto down = KeyArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_KEYBOARD).build();

diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index 3446f58..760cc8f 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp

@@ -173,7 +173,7 @@
 
 bool SensorService::SensorEventConnection::removeSensor(int32_t handle) {
     Mutex::Autolock _l(mConnectionLock);
-    if (mSensorInfo.erase(handle) >= 0) {
+    if (mSensorInfo.erase(handle) > 0) {
         return true;
     }
     return false;

diff --git a/services/surfaceflinger/CompositionEngine/Android.bp b/services/surfaceflinger/CompositionEngine/Android.bp
index 7fa58df..ad5a760 100644
--- a/services/surfaceflinger/CompositionEngine/Android.bp
+++ b/services/surfaceflinger/CompositionEngine/Android.bp

@@ -48,6 +48,7 @@
         "libtonemap",
         "libaidlcommonsupport",
         "libprocessgroup",
+        "libprocessgroup_util",
         "libcgrouprc",
         "libjsoncpp",
         "libcgrouprc_format",

diff --git a/services/surfaceflinger/CompositionEngine/src/Output.cpp b/services/surfaceflinger/CompositionEngine/src/Output.cpp
index 5b9a102..b40aea4 100644
--- a/services/surfaceflinger/CompositionEngine/src/Output.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Output.cpp

@@ -1102,7 +1102,7 @@
 }
 
 ftl::Future<std::monostate> Output::presentFrameAndReleaseLayersAsync(bool flushEvenWhenDisabled) {
-    return ftl::Future<bool>(std::move(mHwComposerAsyncWorker->send([&]() {
+    return ftl::Future<bool>(std::move(mHwComposerAsyncWorker->send([this, flushEvenWhenDisabled]() {
                presentFrameAndReleaseLayers(flushEvenWhenDisabled);
                return true;
            })))

diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 27ea4a9..05f4da2 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp

@@ -467,6 +467,12 @@
     return false;
 }
 
+void DisplayDevice::onVrrIdle(bool idle) {
+    if (mRefreshRateOverlay) {
+        mRefreshRateOverlay->onVrrIdle(idle);
+    }
+}
+
 void DisplayDevice::animateOverlay() {
     if (mRefreshRateOverlay) {
         mRefreshRateOverlay->animate();

diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 3cc8cf5..1b8a3a8 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h

@@ -196,6 +196,7 @@
     bool isRefreshRateOverlayEnabled() const { return mRefreshRateOverlay != nullptr; }
     void animateOverlay();
     bool onKernelTimerChanged(std::optional<DisplayModeId>, bool timerExpired);
+    void onVrrIdle(bool idle);
 
     // Enables an overlay to be display with the hdr/sdr ratio
     void enableHdrSdrRatioOverlay(bool enable) REQUIRES(kMainThreadContext);

diff --git a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
index 12ab2c2..be95913 100644
--- a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp

@@ -209,7 +209,7 @@
     if (!buffer || buffer->initCheck() != ::android::OK) {
         return nullptr;
     }
-    return std::move(buffer);
+    return buffer;
 }
 
 } // anonymous namespace

diff --git a/services/surfaceflinger/DisplayRenderArea.cpp b/services/surfaceflinger/DisplayRenderArea.cpp
index 55b395b..c63c738 100644
--- a/services/surfaceflinger/DisplayRenderArea.cpp
+++ b/services/surfaceflinger/DisplayRenderArea.cpp

@@ -22,22 +22,20 @@
 std::unique_ptr<RenderArea> DisplayRenderArea::create(wp<const DisplayDevice> displayWeak,
                                                       const Rect& sourceCrop, ui::Size reqSize,
                                                       ui::Dataspace reqDataSpace,
-                                                      bool hintForSeamlessTransition,
-                                                      bool allowSecureLayers) {
+                                                      ftl::Flags<Options> options) {
     if (auto display = displayWeak.promote()) {
         // Using new to access a private constructor.
-        return std::unique_ptr<DisplayRenderArea>(
-                new DisplayRenderArea(std::move(display), sourceCrop, reqSize, reqDataSpace,
-                                      hintForSeamlessTransition, allowSecureLayers));
+        return std::unique_ptr<DisplayRenderArea>(new DisplayRenderArea(std::move(display),
+                                                                        sourceCrop, reqSize,
+                                                                        reqDataSpace, options));
     }
     return nullptr;
 }
 
 DisplayRenderArea::DisplayRenderArea(sp<const DisplayDevice> display, const Rect& sourceCrop,
                                      ui::Size reqSize, ui::Dataspace reqDataSpace,
-                                     bool hintForSeamlessTransition, bool allowSecureLayers)
-      : RenderArea(reqSize, CaptureFill::OPAQUE, reqDataSpace, hintForSeamlessTransition,
-                   allowSecureLayers),
+                                     ftl::Flags<Options> options)
+      : RenderArea(reqSize, CaptureFill::OPAQUE, reqDataSpace, options),
         mDisplay(std::move(display)),
         mSourceCrop(sourceCrop) {}
 
@@ -46,7 +44,7 @@
 }
 
 bool DisplayRenderArea::isSecure() const {
-    return mAllowSecureLayers && mDisplay->isSecure();
+    return mOptions.test(Options::CAPTURE_SECURE_LAYERS) && mDisplay->isSecure();
 }
 
 sp<const DisplayDevice> DisplayRenderArea::getDisplayDevice() const {

diff --git a/services/surfaceflinger/DisplayRenderArea.h b/services/surfaceflinger/DisplayRenderArea.h
index 4555a9e..677d019 100644
--- a/services/surfaceflinger/DisplayRenderArea.h
+++ b/services/surfaceflinger/DisplayRenderArea.h

@@ -29,8 +29,7 @@
 public:
     static std::unique_ptr<RenderArea> create(wp<const DisplayDevice>, const Rect& sourceCrop,
                                               ui::Size reqSize, ui::Dataspace,
-                                              bool hintForSeamlessTransition,
-                                              bool allowSecureLayers = true);
+                                              ftl::Flags<Options> options);
 
     const ui::Transform& getTransform() const override;
     bool isSecure() const override;
@@ -39,7 +38,7 @@
 
 private:
     DisplayRenderArea(sp<const DisplayDevice>, const Rect& sourceCrop, ui::Size reqSize,
-                      ui::Dataspace, bool hintForSeamlessTransition, bool allowSecureLayers = true);
+                      ui::Dataspace, ftl::Flags<Options> options);
 
     const sp<const DisplayDevice> mDisplay;
     const Rect mSourceCrop;

diff --git a/services/surfaceflinger/LayerRenderArea.cpp b/services/surfaceflinger/LayerRenderArea.cpp
index f323ce7..bfe6d2a 100644
--- a/services/surfaceflinger/LayerRenderArea.cpp
+++ b/services/surfaceflinger/LayerRenderArea.cpp

@@ -27,10 +27,9 @@
 
 LayerRenderArea::LayerRenderArea(sp<Layer> layer, frontend::LayerSnapshot layerSnapshot,
                                  const Rect& crop, ui::Size reqSize, ui::Dataspace reqDataSpace,
-                                 bool allowSecureLayers, const ui::Transform& layerTransform,
-                                 const Rect& layerBufferSize, bool hintForSeamlessTransition)
-      : RenderArea(reqSize, CaptureFill::CLEAR, reqDataSpace, hintForSeamlessTransition,
-                   allowSecureLayers),
+                                 const ui::Transform& layerTransform, const Rect& layerBufferSize,
+                                 ftl::Flags<RenderArea::Options> options)
+      : RenderArea(reqSize, CaptureFill::CLEAR, reqDataSpace, options),
         mLayer(std::move(layer)),
         mLayerSnapshot(std::move(layerSnapshot)),
         mLayerBufferSize(layerBufferSize),
@@ -42,7 +41,7 @@
 }
 
 bool LayerRenderArea::isSecure() const {
-    return mAllowSecureLayers;
+    return mOptions.test(Options::CAPTURE_SECURE_LAYERS);
 }
 
 sp<const DisplayDevice> LayerRenderArea::getDisplayDevice() const {

diff --git a/services/surfaceflinger/LayerRenderArea.h b/services/surfaceflinger/LayerRenderArea.h
index a12bfca..f72c7c7 100644
--- a/services/surfaceflinger/LayerRenderArea.h
+++ b/services/surfaceflinger/LayerRenderArea.h

@@ -33,9 +33,9 @@
 class LayerRenderArea : public RenderArea {
 public:
     LayerRenderArea(sp<Layer> layer, frontend::LayerSnapshot layerSnapshot, const Rect& crop,
-                    ui::Size reqSize, ui::Dataspace reqDataSpace, bool allowSecureLayers,
+                    ui::Size reqSize, ui::Dataspace reqDataSpace,
                     const ui::Transform& layerTransform, const Rect& layerBufferSize,
-                    bool hintForSeamlessTransition);
+                    ftl::Flags<RenderArea::Options> options);
 
     const ui::Transform& getTransform() const override;
     bool isSecure() const override;

diff --git a/services/surfaceflinger/RefreshRateOverlay.cpp b/services/surfaceflinger/RefreshRateOverlay.cpp
index 9527a99..35f12a0 100644
--- a/services/surfaceflinger/RefreshRateOverlay.cpp
+++ b/services/surfaceflinger/RefreshRateOverlay.cpp

@@ -28,10 +28,11 @@
 
 namespace android {
 
-auto RefreshRateOverlay::draw(int refreshRate, int renderFps, SkColor color,
+auto RefreshRateOverlay::draw(int refreshRate, int renderFps, bool idle, SkColor color,
                               ui::Transform::RotationFlags rotation, ftl::Flags<Features> features)
         -> Buffers {
     const size_t loopCount = features.test(Features::Spinner) ? 6 : 1;
+    const bool isSetByHwc = features.test(Features::SetByHwc);
 
     Buffers buffers;
     buffers.reserve(loopCount);
@@ -71,7 +72,11 @@
         canvas->setMatrix(canvasTransform);
 
         int left = 0;
-        drawNumber(refreshRate, left, color, *canvas);
+        if (idle && !isSetByHwc) {
+            drawDash(left, *canvas);
+        } else {
+            drawNumber(refreshRate, left, color, *canvas);
+        }
         left += 3 * (kDigitWidth + kDigitSpace);
         if (features.test(Features::Spinner)) {
             switch (i) {
@@ -104,7 +109,11 @@
         left += kDigitWidth + kDigitSpace;
 
         if (features.test(Features::RenderRate)) {
-            drawNumber(renderFps, left, color, *canvas);
+            if (idle) {
+                drawDash(left, *canvas);
+            } else {
+                drawNumber(renderFps, left, color, *canvas);
+            }
         }
         left += 3 * (kDigitWidth + kDigitSpace);
 
@@ -138,6 +147,14 @@
     SegmentDrawer::drawDigit(number % 10, left, color, canvas);
 }
 
+void RefreshRateOverlay::drawDash(int left, SkCanvas& canvas) {
+    left += kDigitWidth + kDigitSpace;
+    SegmentDrawer::drawSegment(SegmentDrawer::Segment::Middle, left, SK_ColorRED, canvas);
+
+    left += kDigitWidth + kDigitSpace;
+    SegmentDrawer::drawSegment(SegmentDrawer::Segment::Middle, left, SK_ColorRED, canvas);
+}
+
 std::unique_ptr<RefreshRateOverlay> RefreshRateOverlay::create(FpsRange range,
                                                                ftl::Flags<Features> features) {
     std::unique_ptr<RefreshRateOverlay> overlay =
@@ -171,7 +188,8 @@
     return mSurfaceControl != nullptr;
 }
 
-auto RefreshRateOverlay::getOrCreateBuffers(Fps refreshRate, Fps renderFps) -> const Buffers& {
+auto RefreshRateOverlay::getOrCreateBuffers(Fps refreshRate, Fps renderFps, bool idle)
+        -> const Buffers& {
     static const Buffers kNoBuffers;
     if (!mSurfaceControl) return kNoBuffers;
 
@@ -197,8 +215,8 @@
 
     createTransaction().setTransform(mSurfaceControl->get(), transform).apply();
 
-    BufferCache::const_iterator it =
-            mBufferCache.find({refreshRate.getIntValue(), renderFps.getIntValue(), transformHint});
+    BufferCache::const_iterator it = mBufferCache.find(
+            {refreshRate.getIntValue(), renderFps.getIntValue(), transformHint, idle});
     if (it == mBufferCache.end()) {
         const int maxFps = mFpsRange.max.getIntValue();
 
@@ -222,10 +240,10 @@
 
         const SkColor color = colorBase.toSkColor();
 
-        auto buffers = draw(refreshIntFps, renderIntFps, color, transformHint, mFeatures);
+        auto buffers = draw(refreshIntFps, renderIntFps, idle, color, transformHint, mFeatures);
         it = mBufferCache
-                     .try_emplace({refreshIntFps, renderIntFps, transformHint}, std::move(buffers))
-                     .first;
+                     .try_emplace({refreshIntFps, renderIntFps, transformHint, idle},
+                     std::move(buffers)).first;
     }
 
     return it->second;
@@ -257,7 +275,15 @@
 void RefreshRateOverlay::changeRefreshRate(Fps refreshRate, Fps renderFps) {
     mRefreshRate = refreshRate;
     mRenderFps = renderFps;
-    const auto buffer = getOrCreateBuffers(refreshRate, renderFps)[mFrame];
+    const auto buffer = getOrCreateBuffers(refreshRate, renderFps, mIsVrrIdle)[mFrame];
+    createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();
+}
+
+void RefreshRateOverlay::onVrrIdle(bool idle) {
+    mIsVrrIdle = idle;
+    if (!mRefreshRate || !mRenderFps) return;
+
+    const auto buffer = getOrCreateBuffers(*mRefreshRate, *mRenderFps, mIsVrrIdle)[mFrame];
     createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();
 }
 
@@ -265,7 +291,7 @@
     if (mFeatures.test(Features::RenderRate) && mRefreshRate &&
         FlagManager::getInstance().misc1()) {
         mRenderFps = renderFps;
-        const auto buffer = getOrCreateBuffers(*mRefreshRate, renderFps)[mFrame];
+        const auto buffer = getOrCreateBuffers(*mRefreshRate, renderFps, mIsVrrIdle)[mFrame];
         createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();
     }
 }
@@ -273,7 +299,7 @@
 void RefreshRateOverlay::animate() {
     if (!mFeatures.test(Features::Spinner) || !mRefreshRate) return;
 
-    const auto& buffers = getOrCreateBuffers(*mRefreshRate, *mRenderFps);
+    const auto& buffers = getOrCreateBuffers(*mRefreshRate, *mRenderFps, mIsVrrIdle);
     mFrame = (mFrame + 1) % buffers.size();
     const auto buffer = buffers[mFrame];
     createTransaction().setBuffer(mSurfaceControl->get(), buffer).apply();

diff --git a/services/surfaceflinger/RefreshRateOverlay.h b/services/surfaceflinger/RefreshRateOverlay.h
index b2896f0..d8aa048 100644
--- a/services/surfaceflinger/RefreshRateOverlay.h
+++ b/services/surfaceflinger/RefreshRateOverlay.h

@@ -57,6 +57,7 @@
     void changeRenderRate(Fps);
     void animate();
     bool isSetByHwc() const { return mFeatures.test(RefreshRateOverlay::Features::SetByHwc); }
+    void onVrrIdle(bool idle);
 
     RefreshRateOverlay(ConstructorTag, FpsRange, ftl::Flags<Features>);
 
@@ -65,11 +66,12 @@
 
     using Buffers = std::vector<sp<GraphicBuffer>>;
 
-    static Buffers draw(int refreshRate, int renderFps, SkColor, ui::Transform::RotationFlags,
-                        ftl::Flags<Features>);
+    static Buffers draw(int refreshRate, int renderFps, bool idle, SkColor,
+                        ui::Transform::RotationFlags, ftl::Flags<Features>);
     static void drawNumber(int number, int left, SkColor, SkCanvas&);
+    static void drawDash(int left, SkCanvas&);
 
-    const Buffers& getOrCreateBuffers(Fps, Fps);
+    const Buffers& getOrCreateBuffers(Fps, Fps, bool);
 
     SurfaceComposerClient::Transaction createTransaction() const;
 
@@ -77,10 +79,11 @@
         int refreshRate;
         int renderFps;
         ui::Transform::RotationFlags flags;
+        bool idle;
 
         bool operator==(Key other) const {
             return refreshRate == other.refreshRate && renderFps == other.renderFps &&
-                    flags == other.flags;
+                    flags == other.flags && idle == other.idle;
         }
     };
 
@@ -89,6 +92,7 @@
 
     std::optional<Fps> mRefreshRate;
     std::optional<Fps> mRenderFps;
+    bool mIsVrrIdle = false;
     size_t mFrame = 0;
 
     const FpsRange mFpsRange; // For color interpolation.

diff --git a/services/surfaceflinger/RegionSamplingThread.cpp b/services/surfaceflinger/RegionSamplingThread.cpp
index 2ad70bb..c77bcfa 100644
--- a/services/surfaceflinger/RegionSamplingThread.cpp
+++ b/services/surfaceflinger/RegionSamplingThread.cpp

@@ -277,7 +277,6 @@
     }
 
     const Rect sampledBounds = sampleRegion.bounds();
-    constexpr bool kHintForSeamlessTransition = false;
 
     std::unordered_set<sp<IRegionSamplingListener>, SpHash<IRegionSamplingListener>> listeners;
 
@@ -350,9 +349,8 @@
 
     SurfaceFlinger::RenderAreaBuilderVariant
             renderAreaBuilder(std::in_place_type<DisplayRenderAreaBuilder>, sampledBounds,
-                              sampledBounds.getSize(), ui::Dataspace::V0_SRGB,
-                              kHintForSeamlessTransition, true /* captureSecureLayers */,
-                              displayWeak);
+                              sampledBounds.getSize(), ui::Dataspace::V0_SRGB, displayWeak,
+                              RenderArea::Options::CAPTURE_SECURE_LAYERS);
 
     FenceResult fenceResult;
     if (FlagManager::getInstance().single_hop_screenshot() &&

diff --git a/services/surfaceflinger/RenderArea.h b/services/surfaceflinger/RenderArea.h
index e8d20af..034e467 100644
--- a/services/surfaceflinger/RenderArea.h
+++ b/services/surfaceflinger/RenderArea.h

@@ -21,16 +21,23 @@
 class RenderArea {
 public:
     enum class CaptureFill {CLEAR, OPAQUE};
+    enum class Options {
+        // If not set, the secure layer would be blacked out or skipped
+        // when rendered to an insecure render area
+        CAPTURE_SECURE_LAYERS = 1 << 0,
 
+        // If set, the render result may be used for system animations
+        // that must preserve the exact colors of the display
+        HINT_FOR_SEAMLESS_TRANSITION = 1 << 1,
+    };
     static float getCaptureFillValue(CaptureFill captureFill);
 
     RenderArea(ui::Size reqSize, CaptureFill captureFill, ui::Dataspace reqDataSpace,
-               bool hintForSeamlessTransition, bool allowSecureLayers = false)
-          : mAllowSecureLayers(allowSecureLayers),
+               ftl::Flags<Options> options)
+          : mOptions(options),
             mReqSize(reqSize),
             mReqDataSpace(reqDataSpace),
-            mCaptureFill(captureFill),
-            mHintForSeamlessTransition(hintForSeamlessTransition) {}
+            mCaptureFill(captureFill) {}
 
     static std::function<std::vector<std::pair<Layer*, sp<LayerFE>>>()> fromTraverseLayersLambda(
             std::function<void(const LayerVector::Visitor&)> traverseLayers) {
@@ -90,16 +97,17 @@
 
     // Returns whether the render result may be used for system animations that
     // must preserve the exact colors of the display.
-    bool getHintForSeamlessTransition() const { return mHintForSeamlessTransition; }
+    bool getHintForSeamlessTransition() const {
+        return mOptions.test(Options::HINT_FOR_SEAMLESS_TRANSITION);
+    }
 
 protected:
-    const bool mAllowSecureLayers;
+    ftl::Flags<Options> mOptions;
 
 private:
     const ui::Size mReqSize;
     const ui::Dataspace mReqDataSpace;
     const CaptureFill mCaptureFill;
-    const bool mHintForSeamlessTransition;
 };
 
 } // namespace android

diff --git a/services/surfaceflinger/RenderAreaBuilder.h b/services/surfaceflinger/RenderAreaBuilder.h
index a25c6e0..599fa7e 100644
--- a/services/surfaceflinger/RenderAreaBuilder.h
+++ b/services/surfaceflinger/RenderAreaBuilder.h

@@ -36,50 +36,34 @@
     // Composition data space of the render area
     ui::Dataspace reqDataSpace;
 
-    // If true, the secure layer would be blacked out or skipped
-    // when rendered to an insecure render area
-    bool allowSecureLayers;
-
-    // If true, the render result may be used for system animations
-    // that must preserve the exact colors of the display
-    bool hintForSeamlessTransition;
-
+    ftl::Flags<RenderArea::Options> options;
     virtual std::unique_ptr<RenderArea> build() const = 0;
 
     RenderAreaBuilder(Rect crop, ui::Size reqSize, ui::Dataspace reqDataSpace,
-                      bool allowSecureLayers, bool hintForSeamlessTransition)
-          : crop(crop),
-            reqSize(reqSize),
-            reqDataSpace(reqDataSpace),
-            allowSecureLayers(allowSecureLayers),
-            hintForSeamlessTransition(hintForSeamlessTransition) {}
+                      ftl::Flags<RenderArea::Options> options)
+          : crop(crop), reqSize(reqSize), reqDataSpace(reqDataSpace), options(options) {}
 
     virtual ~RenderAreaBuilder() = default;
 };
 
 struct DisplayRenderAreaBuilder : RenderAreaBuilder {
     DisplayRenderAreaBuilder(Rect crop, ui::Size reqSize, ui::Dataspace reqDataSpace,
-                             bool allowSecureLayers, bool hintForSeamlessTransition,
-                             wp<const DisplayDevice> displayWeak)
-          : RenderAreaBuilder(crop, reqSize, reqDataSpace, allowSecureLayers,
-                              hintForSeamlessTransition),
-            displayWeak(displayWeak) {}
+                             wp<const DisplayDevice> displayWeak,
+                             ftl::Flags<RenderArea::Options> options)
+          : RenderAreaBuilder(crop, reqSize, reqDataSpace, options), displayWeak(displayWeak) {}
 
     // Display that render area will be on
     wp<const DisplayDevice> displayWeak;
 
     std::unique_ptr<RenderArea> build() const override {
-        return DisplayRenderArea::create(displayWeak, crop, reqSize, reqDataSpace,
-                                         hintForSeamlessTransition, allowSecureLayers);
+        return DisplayRenderArea::create(displayWeak, crop, reqSize, reqDataSpace, options);
     }
 };
 
 struct LayerRenderAreaBuilder : RenderAreaBuilder {
-    LayerRenderAreaBuilder(Rect crop, ui::Size reqSize, ui::Dataspace reqDataSpace,
-                           bool allowSecureLayers, bool hintForSeamlessTransition, sp<Layer> layer,
-                           bool childrenOnly)
-          : RenderAreaBuilder(crop, reqSize, reqDataSpace, allowSecureLayers,
-                              hintForSeamlessTransition),
+    LayerRenderAreaBuilder(Rect crop, ui::Size reqSize, ui::Dataspace reqDataSpace, sp<Layer> layer,
+                           bool childrenOnly, ftl::Flags<RenderArea::Options> options)
+          : RenderAreaBuilder(crop, reqSize, reqDataSpace, options),
             layer(layer),
             childrenOnly(childrenOnly) {}
 
@@ -110,8 +94,8 @@
 
     std::unique_ptr<RenderArea> build() const override {
         return std::make_unique<LayerRenderArea>(layer, std::move(layerSnapshot), crop, reqSize,
-                                                 reqDataSpace, allowSecureLayers, layerTransform,
-                                                 layerBufferSize, hintForSeamlessTransition);
+                                                 reqDataSpace, layerTransform, layerBufferSize,
+                                                 options);
     }
 };
 

diff --git a/services/surfaceflinger/Scheduler/ISchedulerCallback.h b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
index 43cdb5e..f430526 100644
--- a/services/surfaceflinger/Scheduler/ISchedulerCallback.h
+++ b/services/surfaceflinger/Scheduler/ISchedulerCallback.h

@@ -33,6 +33,7 @@
     virtual void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>,
                                              Fps renderRate) = 0;
     virtual void onCommitNotComposited(PhysicalDisplayId pacesetterDisplayId) = 0;
+    virtual void vrrDisplayIdle(bool idle) = 0;
 
 protected:
     ~ISchedulerCallback() = default;

diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
index 234f1cb..a4368a6 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp

@@ -1502,7 +1502,7 @@
             return str;
         };
         ALOGV("%s render rates: %s, isVrrDevice? %d", rangeName, stringifyModes().c_str(),
-              mIsVrrDevice);
+              mIsVrrDevice.load());
 
         return frameRateModes;
     };
@@ -1512,7 +1512,6 @@
 }
 
 bool RefreshRateSelector::isVrrDevice() const {
-    std::lock_guard lock(mLock);
     return mIsVrrDevice;
 }
 

diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.h b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
index 4f491d9..998b1b8 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.h

@@ -321,7 +321,10 @@
     RefreshRateSelector(const RefreshRateSelector&) = delete;
     RefreshRateSelector& operator=(const RefreshRateSelector&) = delete;
 
-    const DisplayModes& displayModes() const { return mDisplayModes; }
+    DisplayModes displayModes() const {
+        std::lock_guard lock(mLock);
+        return mDisplayModes;
+    }
 
     // Returns whether switching modes (refresh rate or resolution) is possible.
     // TODO(b/158780872): Consider HAL support, and skip frame rate detection if the modes only
@@ -383,6 +386,7 @@
 
         Callbacks platform;
         Callbacks kernel;
+        Callbacks vrr;
     };
 
     void setIdleTimerCallbacks(IdleTimerCallbacks callbacks) EXCLUDES(mIdleTimerCallbacksMutex) {
@@ -501,6 +505,9 @@
     std::optional<IdleTimerCallbacks::Callbacks> getIdleTimerCallbacks() const
             REQUIRES(mIdleTimerCallbacksMutex) {
         if (!mIdleTimerCallbacks) return {};
+
+        if (mIsVrrDevice) return mIdleTimerCallbacks->vrr;
+
         return mConfig.kernelIdleTimerController.has_value() ? mIdleTimerCallbacks->kernel
                                                              : mIdleTimerCallbacks->platform;
     }
@@ -536,7 +543,7 @@
     std::vector<FrameRateMode> mAppRequestFrameRates GUARDED_BY(mLock);
 
     // Caches whether the device is VRR-compatible based on the active display mode.
-    bool mIsVrrDevice GUARDED_BY(mLock) = false;
+    std::atomic_bool mIsVrrDevice = false;
 
     Policy mDisplayManagerPolicy GUARDED_BY(mLock);
     std::optional<Policy> mOverridePolicy GUARDED_BY(mLock);

diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 60681a2..5ec7e48 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp

@@ -82,7 +82,7 @@
     mTouchTimer.reset();
 
     // Stop idle timer and clear callbacks, as the RefreshRateSelector may outlive the Scheduler.
-    demotePacesetterDisplay();
+    demotePacesetterDisplay({.toggleIdleTimer = true});
 }
 
 void Scheduler::initVsync(frametimeline::TokenManager& tokenManager,
@@ -117,35 +117,45 @@
     }
 }
 
-void Scheduler::setPacesetterDisplay(std::optional<PhysicalDisplayId> pacesetterIdOpt) {
-    demotePacesetterDisplay();
+void Scheduler::setPacesetterDisplay(PhysicalDisplayId pacesetterId) {
+    constexpr PromotionParams kPromotionParams = {.toggleIdleTimer = true};
 
-    promotePacesetterDisplay(pacesetterIdOpt);
+    demotePacesetterDisplay(kPromotionParams);
+    promotePacesetterDisplay(pacesetterId, kPromotionParams);
 }
 
-void Scheduler::registerDisplay(PhysicalDisplayId displayId, RefreshRateSelectorPtr selectorPtr) {
+void Scheduler::registerDisplay(PhysicalDisplayId displayId, RefreshRateSelectorPtr selectorPtr,
+                                PhysicalDisplayId activeDisplayId) {
     auto schedulePtr =
             std::make_shared<VsyncSchedule>(selectorPtr->getActiveMode().modePtr, mFeatures,
                                             [this](PhysicalDisplayId id, bool enable) {
                                                 onHardwareVsyncRequest(id, enable);
                                             });
 
-    registerDisplayInternal(displayId, std::move(selectorPtr), std::move(schedulePtr));
+    registerDisplayInternal(displayId, std::move(selectorPtr), std::move(schedulePtr),
+                            activeDisplayId);
 }
 
 void Scheduler::registerDisplayInternal(PhysicalDisplayId displayId,
                                         RefreshRateSelectorPtr selectorPtr,
-                                        VsyncSchedulePtr schedulePtr) {
-    demotePacesetterDisplay();
+                                        VsyncSchedulePtr schedulePtr,
+                                        PhysicalDisplayId activeDisplayId) {
+    const bool isPrimary = (ftl::FakeGuard(mDisplayLock), !mPacesetterDisplayId);
 
-    auto [pacesetterVsyncSchedule, isNew] = [&]() FTL_FAKE_GUARD(kMainThreadContext) {
+    // Start the idle timer for the first registered (i.e. primary) display.
+    const PromotionParams promotionParams = {.toggleIdleTimer = isPrimary};
+
+    demotePacesetterDisplay(promotionParams);
+
+    auto [pacesetterVsyncSchedule, isNew] = [&]() REQUIRES(kMainThreadContext) {
         std::scoped_lock lock(mDisplayLock);
         const bool isNew = mDisplays
                                    .emplace_or_replace(displayId, displayId, std::move(selectorPtr),
                                                        std::move(schedulePtr), mFeatures)
                                    .second;
 
-        return std::make_pair(promotePacesetterDisplayLocked(), isNew);
+        return std::make_pair(promotePacesetterDisplayLocked(activeDisplayId, promotionParams),
+                              isNew);
     }();
 
     applyNewVsyncSchedule(std::move(pacesetterVsyncSchedule));
@@ -158,10 +168,13 @@
     dispatchHotplug(displayId, Hotplug::Connected);
 }
 
-void Scheduler::unregisterDisplay(PhysicalDisplayId displayId) {
+void Scheduler::unregisterDisplay(PhysicalDisplayId displayId, PhysicalDisplayId activeDisplayId) {
+    LOG_ALWAYS_FATAL_IF(displayId == activeDisplayId, "Cannot unregister the active display!");
+
     dispatchHotplug(displayId, Hotplug::Disconnected);
 
-    demotePacesetterDisplay();
+    constexpr PromotionParams kPromotionParams = {.toggleIdleTimer = false};
+    demotePacesetterDisplay(kPromotionParams);
 
     std::shared_ptr<VsyncSchedule> pacesetterVsyncSchedule;
     {
@@ -173,7 +186,7 @@
         // headless virtual display.)
         LOG_ALWAYS_FATAL_IF(mDisplays.empty(), "Cannot unregister all displays!");
 
-        pacesetterVsyncSchedule = promotePacesetterDisplayLocked();
+        pacesetterVsyncSchedule = promotePacesetterDisplayLocked(activeDisplayId, kPromotionParams);
     }
     applyNewVsyncSchedule(std::move(pacesetterVsyncSchedule));
 }
@@ -912,35 +925,38 @@
     return mFrameRateOverrideMappings.updateFrameRateOverridesByContent(frameRateOverrides);
 }
 
-void Scheduler::promotePacesetterDisplay(std::optional<PhysicalDisplayId> pacesetterIdOpt) {
+void Scheduler::promotePacesetterDisplay(PhysicalDisplayId pacesetterId, PromotionParams params) {
     std::shared_ptr<VsyncSchedule> pacesetterVsyncSchedule;
-
     {
         std::scoped_lock lock(mDisplayLock);
-        pacesetterVsyncSchedule = promotePacesetterDisplayLocked(pacesetterIdOpt);
+        pacesetterVsyncSchedule = promotePacesetterDisplayLocked(pacesetterId, params);
     }
 
     applyNewVsyncSchedule(std::move(pacesetterVsyncSchedule));
 }
 
 std::shared_ptr<VsyncSchedule> Scheduler::promotePacesetterDisplayLocked(
-        std::optional<PhysicalDisplayId> pacesetterIdOpt) {
-    // TODO(b/241286431): Choose the pacesetter display.
-    mPacesetterDisplayId = pacesetterIdOpt.value_or(mDisplays.begin()->first);
-    ALOGI("Display %s is the pacesetter", to_string(*mPacesetterDisplayId).c_str());
+        PhysicalDisplayId pacesetterId, PromotionParams params) {
+    // TODO: b/241286431 - Choose the pacesetter among mDisplays.
+    mPacesetterDisplayId = pacesetterId;
+    ALOGI("Display %s is the pacesetter", to_string(pacesetterId).c_str());
 
     std::shared_ptr<VsyncSchedule> newVsyncSchedulePtr;
     if (const auto pacesetterOpt = pacesetterDisplayLocked()) {
         const Display& pacesetter = *pacesetterOpt;
 
-        pacesetter.selectorPtr->setIdleTimerCallbacks(
-                {.platform = {.onReset = [this] { idleTimerCallback(TimerState::Reset); },
-                              .onExpired = [this] { idleTimerCallback(TimerState::Expired); }},
-                 .kernel = {.onReset = [this] { kernelIdleTimerCallback(TimerState::Reset); },
-                            .onExpired =
-                                    [this] { kernelIdleTimerCallback(TimerState::Expired); }}});
+        if (!FlagManager::getInstance().connected_display() || params.toggleIdleTimer) {
+            pacesetter.selectorPtr->setIdleTimerCallbacks(
+                    {.platform = {.onReset = [this] { idleTimerCallback(TimerState::Reset); },
+                                  .onExpired = [this] { idleTimerCallback(TimerState::Expired); }},
+                     .kernel = {.onReset = [this] { kernelIdleTimerCallback(TimerState::Reset); },
+                                .onExpired =
+                                        [this] { kernelIdleTimerCallback(TimerState::Expired); }},
+                     .vrr = {.onReset = [this] { mSchedulerCallback.vrrDisplayIdle(false); },
+                             .onExpired = [this] { mSchedulerCallback.vrrDisplayIdle(true); }}});
 
-        pacesetter.selectorPtr->startIdleTimer();
+            pacesetter.selectorPtr->startIdleTimer();
+        }
 
         newVsyncSchedulePtr = pacesetter.schedulePtr;
 
@@ -960,11 +976,14 @@
     }
 }
 
-void Scheduler::demotePacesetterDisplay() {
-    // No need to lock for reads on kMainThreadContext.
-    if (const auto pacesetterPtr = FTL_FAKE_GUARD(mDisplayLock, pacesetterSelectorPtrLocked())) {
-        pacesetterPtr->stopIdleTimer();
-        pacesetterPtr->clearIdleTimerCallbacks();
+void Scheduler::demotePacesetterDisplay(PromotionParams params) {
+    if (!FlagManager::getInstance().connected_display() || params.toggleIdleTimer) {
+        // No need to lock for reads on kMainThreadContext.
+        if (const auto pacesetterPtr =
+                    FTL_FAKE_GUARD(mDisplayLock, pacesetterSelectorPtrLocked())) {
+            pacesetterPtr->stopIdleTimer();
+            pacesetterPtr->clearIdleTimerCallbacks();
+        }
     }
 
     // Clear state that depends on the pacesetter's RefreshRateSelector.

diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index ccaa05f..94583db 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h

@@ -92,8 +92,8 @@
 
     void startTimers();
 
-    // TODO(b/241285191): Remove this API by promoting pacesetter in onScreen{Acquired,Released}.
-    void setPacesetterDisplay(std::optional<PhysicalDisplayId>) REQUIRES(kMainThreadContext)
+    // TODO: b/241285191 - Remove this API by promoting pacesetter in onScreen{Acquired,Released}.
+    void setPacesetterDisplay(PhysicalDisplayId) REQUIRES(kMainThreadContext)
             EXCLUDES(mDisplayLock);
 
     using RefreshRateSelectorPtr = std::shared_ptr<RefreshRateSelector>;
@@ -101,9 +101,16 @@
     using ConstVsyncSchedulePtr = std::shared_ptr<const VsyncSchedule>;
     using VsyncSchedulePtr = std::shared_ptr<VsyncSchedule>;
 
-    void registerDisplay(PhysicalDisplayId, RefreshRateSelectorPtr) REQUIRES(kMainThreadContext)
+    // After registration/unregistration, `activeDisplayId` is promoted to pacesetter. Note that the
+    // active display is never unregistered, since hotplug disconnect never happens for activatable
+    // displays, i.e. a foldable's internal displays or otherwise the (internal or external) primary
+    // display.
+    // TODO: b/255635821 - Remove active display parameters.
+    void registerDisplay(PhysicalDisplayId, RefreshRateSelectorPtr,
+                         PhysicalDisplayId activeDisplayId) REQUIRES(kMainThreadContext)
             EXCLUDES(mDisplayLock);
-    void unregisterDisplay(PhysicalDisplayId) REQUIRES(kMainThreadContext) EXCLUDES(mDisplayLock);
+    void unregisterDisplay(PhysicalDisplayId, PhysicalDisplayId activeDisplayId)
+            REQUIRES(kMainThreadContext) EXCLUDES(mDisplayLock);
 
     void run();
 
@@ -370,9 +377,16 @@
     void resyncAllToHardwareVsync(bool allowToEnable) EXCLUDES(mDisplayLock);
     void setVsyncConfig(const VsyncConfig&, Period vsyncPeriod);
 
-    // Chooses a pacesetter among the registered displays, unless `pacesetterIdOpt` is specified.
-    // The new `mPacesetterDisplayId` is never `std::nullopt`.
-    void promotePacesetterDisplay(std::optional<PhysicalDisplayId> pacesetterIdOpt = std::nullopt)
+    // TODO: b/241286431 - Remove this option, which assumes that the pacesetter does not change
+    // when a (secondary) display is registered or unregistered. In the short term, this avoids
+    // a deadlock where the main thread joins with the timer thread as the timer thread waits to
+    // lock a mutex held by the main thread.
+    struct PromotionParams {
+        // Whether to stop and start the idle timer. Ignored unless connected_display flag is set.
+        bool toggleIdleTimer;
+    };
+
+    void promotePacesetterDisplay(PhysicalDisplayId pacesetterId, PromotionParams)
             REQUIRES(kMainThreadContext) EXCLUDES(mDisplayLock);
 
     // Changes to the displays (e.g. registering and unregistering) must be made
@@ -381,17 +395,20 @@
     // MessageQueue and EventThread need to use the new pacesetter's
     // VsyncSchedule, and this must happen while mDisplayLock is *not* locked,
     // or else we may deadlock with EventThread.
-    std::shared_ptr<VsyncSchedule> promotePacesetterDisplayLocked(
-            std::optional<PhysicalDisplayId> pacesetterIdOpt = std::nullopt)
+    std::shared_ptr<VsyncSchedule> promotePacesetterDisplayLocked(PhysicalDisplayId pacesetterId,
+                                                                  PromotionParams)
             REQUIRES(kMainThreadContext, mDisplayLock);
     void applyNewVsyncSchedule(std::shared_ptr<VsyncSchedule>) EXCLUDES(mDisplayLock);
 
-    // Blocks until the pacesetter's idle timer thread exits. `mDisplayLock` must not be locked by
-    // the caller on the main thread to avoid deadlock, since the timer thread locks it before exit.
-    void demotePacesetterDisplay() REQUIRES(kMainThreadContext) EXCLUDES(mDisplayLock, mPolicyLock);
+    // If toggleIdleTimer is true, the calling thread blocks until the pacesetter's idle timer
+    // thread exits, in which case mDisplayLock must not be locked by the caller to avoid deadlock,
+    // since the timer thread locks it before exit.
+    void demotePacesetterDisplay(PromotionParams) REQUIRES(kMainThreadContext)
+            EXCLUDES(mDisplayLock, mPolicyLock);
 
-    void registerDisplayInternal(PhysicalDisplayId, RefreshRateSelectorPtr, VsyncSchedulePtr)
-            REQUIRES(kMainThreadContext) EXCLUDES(mDisplayLock);
+    void registerDisplayInternal(PhysicalDisplayId, RefreshRateSelectorPtr, VsyncSchedulePtr,
+                                 PhysicalDisplayId activeDisplayId) REQUIRES(kMainThreadContext)
+            EXCLUDES(mDisplayLock);
 
     struct Policy;
 

diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
index dd3c4b0..1422cfa 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp

@@ -737,9 +737,7 @@
         return ticks<std::milli, float>(TimePoint::fromNs(timePoint) - now);
     };
 
-    Fps displayFps = !FlagManager::getInstance().vrr_bugfix_24q4() && mRenderRateOpt
-            ? *mRenderRateOpt
-            : Fps::fromPeriodNsecs(mIdealPeriod.ns());
+    Fps displayFps = Fps::fromPeriodNsecs(mIdealPeriod.ns());
     const auto divisor = RefreshRateSelector::getFrameRateDivisor(displayFps, frameRate);
     const auto now = TimePoint::now();
 

diff --git a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h b/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
index 2c397bd..a54d435 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h

@@ -134,8 +134,11 @@
     }
 
     size_t getPresentFenceShift(Period minFramePeriod) const {
-        const bool isTwoVsyncsAhead = targetsVsyncsAhead<2>(minFramePeriod);
         size_t shift = 0;
+        if (minFramePeriod.ns() == 0) {
+            return shift;
+        }
+        const bool isTwoVsyncsAhead = targetsVsyncsAhead<2>(minFramePeriod);
         if (isTwoVsyncsAhead) {
             shift = static_cast<size_t>(expectedFrameDuration().ns() / minFramePeriod.ns());
             if (shift >= mPresentFences.size()) {

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index abab49d..d4d32aa 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp

@@ -1414,6 +1414,8 @@
     return future.get();
 }
 
+// TODO: b/241285876 - Restore thread safety analysis once mStateLock below is unconditional.
+[[clang::no_thread_safety_analysis]]
 void SurfaceFlinger::finalizeDisplayModeChange(PhysicalDisplayId displayId) {
     ATRACE_NAME(ftl::Concat(__func__, ' ', displayId.value).c_str());
 
@@ -1429,7 +1431,7 @@
     if (const auto oldResolution =
                 mDisplayModeController.getActiveMode(displayId).modePtr->getResolution();
         oldResolution != activeMode.modePtr->getResolution()) {
-        Mutex::Autolock lock(mStateLock);
+        ConditionalLock lock(mStateLock, !FlagManager::getInstance().connected_display());
 
         auto& state = mCurrentState.displays.editValueFor(getPhysicalDisplayTokenLocked(displayId));
         // We need to generate new sequenceId in order to recreate the display (and this
@@ -1483,7 +1485,7 @@
 
     std::optional<PhysicalDisplayId> displayToUpdateImmediately;
 
-    for (const auto& [displayId, physical] : FTL_FAKE_GUARD(mStateLock, mPhysicalDisplays)) {
+    for (const auto& [displayId, physical] : mPhysicalDisplays) {
         auto desiredModeOpt = mDisplayModeController.getDesiredMode(displayId);
         if (!desiredModeOpt) {
             continue;
@@ -2332,7 +2334,7 @@
     if (flushTransactions) {
         needsTraversal |= commitMirrorDisplays(vsyncId);
         needsTraversal |= commitCreatedLayers(vsyncId, update.layerCreatedStates);
-        needsTraversal |= applyTransactions(update.transactions, vsyncId);
+        needsTraversal |= applyTransactions(update.transactions);
     }
     outTransactionsAreEmpty = !needsTraversal;
     const bool shouldCommit = (getTransactionFlags() & ~eTransactionFlushNeeded) || needsTraversal;
@@ -2513,7 +2515,7 @@
 
     bool newDataLatched = false;
     ATRACE_NAME("DisplayCallbackAndStatsUpdates");
-    mustComposite |= applyTransactionsLocked(update.transactions, vsyncId);
+    mustComposite |= applyTransactionsLocked(update.transactions);
     traverseLegacyLayers([&](Layer* layer) { layer->commitTransaction(); });
     const nsecs_t latchTime = systemTime();
     bool unused = false;
@@ -2618,9 +2620,13 @@
         return false;
     }
 
-    for (const auto [displayId, _] : frameTargets) {
-        if (mDisplayModeController.isModeSetPending(displayId)) {
-            finalizeDisplayModeChange(displayId);
+    {
+        ConditionalLock lock(mStateLock, FlagManager::getInstance().connected_display());
+
+        for (const auto [displayId, _] : frameTargets) {
+            if (mDisplayModeController.isModeSetPending(displayId)) {
+                finalizeDisplayModeChange(displayId);
+            }
         }
     }
 
@@ -2719,9 +2725,16 @@
                                                         ? &mLayerHierarchyBuilder.getHierarchy()
                                                         : nullptr,
                                                 updateAttachedChoreographer);
+
+        if (FlagManager::getInstance().connected_display()) {
+            initiateDisplayModeChanges();
+        }
     }
 
-    initiateDisplayModeChanges();
+    if (!FlagManager::getInstance().connected_display()) {
+        ftl::FakeGuard guard(mStateLock);
+        initiateDisplayModeChanges();
+    }
 
     updateCursorAsync();
     if (!mustComposite) {
@@ -3855,7 +3868,8 @@
         ftl::FakeGuard guard(kMainThreadContext);
 
         // For hotplug reconnect, renew the registration since display modes have been reloaded.
-        mScheduler->registerDisplay(display->getPhysicalId(), display->holdRefreshRateSelector());
+        mScheduler->registerDisplay(display->getPhysicalId(), display->holdRefreshRateSelector(),
+                                    mActiveDisplayId);
     }
 
     if (display->isVirtual()) {
@@ -3894,7 +3908,7 @@
         if (display->isVirtual()) {
             releaseVirtualDisplay(display->getVirtualId());
         } else {
-            mScheduler->unregisterDisplay(display->getPhysicalId());
+            mScheduler->unregisterDisplay(display->getPhysicalId(), mActiveDisplayId);
         }
     }
 
@@ -4506,7 +4520,8 @@
                                              getFactory(), activeRefreshRate, *mTimeStats);
 
     // The pacesetter must be registered before EventThread creation below.
-    mScheduler->registerDisplay(display->getPhysicalId(), display->holdRefreshRateSelector());
+    mScheduler->registerDisplay(display->getPhysicalId(), display->holdRefreshRateSelector(),
+                                mActiveDisplayId);
     if (FlagManager::getInstance().vrr_config()) {
         mScheduler->setRenderRate(display->getPhysicalId(), activeMode.fps,
                                   /*applyImmediately*/ true);
@@ -5075,20 +5090,18 @@
 }
 
 // For tests only
-bool SurfaceFlinger::flushTransactionQueues(VsyncId vsyncId) {
+bool SurfaceFlinger::flushTransactionQueues() {
     mTransactionHandler.collectTransactions();
     std::vector<TransactionState> transactions = mTransactionHandler.flushTransactions();
-    return applyTransactions(transactions, vsyncId);
+    return applyTransactions(transactions);
 }
 
-bool SurfaceFlinger::applyTransactions(std::vector<TransactionState>& transactions,
-                                       VsyncId vsyncId) {
+bool SurfaceFlinger::applyTransactions(std::vector<TransactionState>& transactions) {
     Mutex::Autolock lock(mStateLock);
-    return applyTransactionsLocked(transactions, vsyncId);
+    return applyTransactionsLocked(transactions);
 }
 
-bool SurfaceFlinger::applyTransactionsLocked(std::vector<TransactionState>& transactions,
-                                             VsyncId vsyncId) {
+bool SurfaceFlinger::applyTransactionsLocked(std::vector<TransactionState>& transactions) {
     bool needsTraversal = false;
     // Now apply all transactions.
     for (auto& transaction : transactions) {
@@ -6781,7 +6794,7 @@
 }
 
 void SurfaceFlinger::dumpHwcLayersMinidumpLockedLegacy(std::string& result) const {
-    for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
+    for (const auto& [token, display] : mDisplays) {
         const auto displayId = HalDisplayId::tryCast(display->getId());
         if (!displayId) {
             continue;
@@ -6801,7 +6814,7 @@
     if (!mLayerLifecycleManagerEnabled) {
         return dumpHwcLayersMinidumpLockedLegacy(result);
     }
-    for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
+    for (const auto& [token, display] : mDisplays) {
         const auto displayId = HalDisplayId::tryCast(display->getId());
         if (!displayId) {
             continue;
@@ -7701,6 +7714,22 @@
     }));
 }
 
+void SurfaceFlinger::vrrDisplayIdle(bool idle) {
+    // Update the overlay on the main thread to avoid race conditions with
+    // RefreshRateSelector::getActiveMode
+    static_cast<void>(mScheduler->schedule([=, this] {
+        const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
+        if (!display) {
+            ALOGW("%s: default display is null", __func__);
+            return;
+        }
+        if (!display->isRefreshRateOverlayEnabled()) return;
+
+        display->onVrrIdle(idle);
+        mScheduler->scheduleFrame();
+    }));
+}
+
 std::pair<std::optional<KernelIdleTimerController>, std::chrono::milliseconds>
 SurfaceFlinger::getKernelIdleTimerProperties(PhysicalDisplayId displayId) {
     const bool isKernelIdleTimerHwcSupported = getHwComposer().getComposer()->isSupported(
@@ -7957,10 +7986,13 @@
     GetLayerSnapshotsFunction getLayerSnapshotsFn =
             getLayerSnapshotsForScreenshots(layerStack, args.uid, std::move(excludeLayerIds));
 
+    ftl::Flags<RenderArea::Options> options;
+    if (args.captureSecureLayers) options |= RenderArea::Options::CAPTURE_SECURE_LAYERS;
+    if (args.hintForSeamlessTransition)
+        options |= RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION;
     captureScreenCommon(RenderAreaBuilderVariant(std::in_place_type<DisplayRenderAreaBuilder>,
                                                  args.sourceCrop, reqSize, args.dataspace,
-                                                 args.hintForSeamlessTransition,
-                                                 args.captureSecureLayers, displayWeak),
+                                                 displayWeak, options),
                         getLayerSnapshotsFn, reqSize, args.pixelFormat, args.allowProtected,
                         args.grayscale, captureListener);
 }
@@ -8011,10 +8043,12 @@
     constexpr bool kAllowProtected = false;
     constexpr bool kGrayscale = false;
 
+    ftl::Flags<RenderArea::Options> options;
+    if (args.hintForSeamlessTransition)
+        options |= RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION;
     captureScreenCommon(RenderAreaBuilderVariant(std::in_place_type<DisplayRenderAreaBuilder>,
-                                                 Rect(), size, args.dataspace,
-                                                 args.hintForSeamlessTransition,
-                                                 false /* captureSecureLayers */, displayWeak),
+                                                 Rect(), size, args.dataspace, displayWeak,
+                                                 options),
                         getLayerSnapshotsFn, size, args.pixelFormat, kAllowProtected, kGrayscale,
                         captureListener);
 }
@@ -8113,10 +8147,13 @@
         return;
     }
 
+    ftl::Flags<RenderArea::Options> options;
+    if (args.captureSecureLayers) options |= RenderArea::Options::CAPTURE_SECURE_LAYERS;
+    if (args.hintForSeamlessTransition)
+        options |= RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION;
     captureScreenCommon(RenderAreaBuilderVariant(std::in_place_type<LayerRenderAreaBuilder>, crop,
-                                                 reqSize, dataspace, args.captureSecureLayers,
-                                                 args.hintForSeamlessTransition, parent,
-                                                 args.childrenOnly),
+                                                 reqSize, dataspace, parent, args.childrenOnly,
+                                                 options),
                         getLayerSnapshotsFn, reqSize, args.pixelFormat, args.allowProtected,
                         args.grayscale, captureListener);
 }

diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index ee541c4..2369043 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h

@@ -703,6 +703,7 @@
                                      Fps renderRate) override;
     void onCommitNotComposited(PhysicalDisplayId pacesetterDisplayId) override
             REQUIRES(kMainThreadContext);
+    void vrrDisplayIdle(bool idle) override;
 
     // ICEPowerCallback overrides:
     void notifyCpuLoadUp() override;
@@ -737,9 +738,9 @@
     status_t setActiveModeFromBackdoor(const sp<display::DisplayToken>&, DisplayModeId, Fps minFps,
                                        Fps maxFps);
 
-    void initiateDisplayModeChanges() REQUIRES(kMainThreadContext) EXCLUDES(mStateLock);
+    void initiateDisplayModeChanges() REQUIRES(kMainThreadContext) REQUIRES(mStateLock);
     void finalizeDisplayModeChange(PhysicalDisplayId) REQUIRES(kMainThreadContext)
-            EXCLUDES(mStateLock);
+            REQUIRES(mStateLock);
 
     void dropModeRequest(PhysicalDisplayId) REQUIRES(kMainThreadContext);
     void applyActiveMode(PhysicalDisplayId) REQUIRES(kMainThreadContext);
@@ -813,9 +814,9 @@
             REQUIRES(mStateLock, kMainThreadContext);
     // Flush pending transactions that were presented after desiredPresentTime.
     // For test only
-    bool flushTransactionQueues(VsyncId) REQUIRES(kMainThreadContext);
+    bool flushTransactionQueues() REQUIRES(kMainThreadContext);
 
-    bool applyTransactions(std::vector<TransactionState>&, VsyncId) REQUIRES(kMainThreadContext);
+    bool applyTransactions(std::vector<TransactionState>&) REQUIRES(kMainThreadContext);
     bool applyAndCommitDisplayTransactionStatesLocked(std::vector<TransactionState>& transactions)
             REQUIRES(kMainThreadContext, mStateLock);
 
@@ -853,7 +854,7 @@
 
     static LatchUnsignaledConfig getLatchUnsignaledConfig();
     bool shouldLatchUnsignaled(const layer_state_t&, size_t numStates, bool firstTransaction) const;
-    bool applyTransactionsLocked(std::vector<TransactionState>& transactions, VsyncId)
+    bool applyTransactionsLocked(std::vector<TransactionState>& transactions)
             REQUIRES(mStateLock, kMainThreadContext);
     uint32_t setDisplayStateLocked(const DisplayState& s) REQUIRES(mStateLock);
     uint32_t addInputWindowCommands(const InputWindowCommands& inputWindowCommands)

diff --git a/services/surfaceflinger/Tracing/TransactionProtoParser.cpp b/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
index 0bafb71..b189598 100644
--- a/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
+++ b/services/surfaceflinger/Tracing/TransactionProtoParser.cpp

@@ -62,12 +62,12 @@
 
     proto.mutable_layer_changes()->Reserve(static_cast<int32_t>(t.states.size()));
     for (auto& layerState : t.states) {
-        proto.mutable_layer_changes()->Add(std::move(toProto(layerState)));
+        proto.mutable_layer_changes()->Add(toProto(layerState));
     }
 
     proto.mutable_display_changes()->Reserve(static_cast<int32_t>(t.displays.size()));
     for (auto& displayState : t.displays) {
-        proto.mutable_display_changes()->Add(std::move(toProto(displayState)));
+        proto.mutable_display_changes()->Add(toProto(displayState));
     }
 
     proto.mutable_merged_transaction_ids()->Reserve(

diff --git a/services/surfaceflinger/Tracing/TransactionTracing.cpp b/services/surfaceflinger/Tracing/TransactionTracing.cpp
index 696f348..bc9f809 100644
--- a/services/surfaceflinger/Tracing/TransactionTracing.cpp
+++ b/services/surfaceflinger/Tracing/TransactionTracing.cpp

@@ -244,7 +244,7 @@
                 static_cast<int32_t>(update.createdLayers.size()));
 
         for (const auto& args : update.createdLayers) {
-            entryProto.mutable_added_layers()->Add(std::move(mProtoParser.toProto(args)));
+            entryProto.mutable_added_layers()->Add(mProtoParser.toProto(args));
         }
 
         entryProto.mutable_destroyed_layers()->Reserve(
@@ -276,7 +276,7 @@
                     static_cast<int32_t>(update.displayInfos.size()));
             for (auto& [layerStack, displayInfo] : update.displayInfos) {
                 entryProto.mutable_displays()->Add(
-                        std::move(mProtoParser.toProto(displayInfo, layerStack.id)));
+                        mProtoParser.toProto(displayInfo, layerStack.id));
             }
         }
 

diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index 08973de..cdd77fe 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp

@@ -70,6 +70,7 @@
 
 using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
 using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
+using namespace ftl::flag_operators;
 
 constexpr hal::HWDisplayId HWC_DISPLAY = FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
 constexpr hal::HWLayerId HWC_LAYER = 5000;
@@ -197,8 +198,11 @@
     const Rect sourceCrop(0, 0, DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT);
     constexpr bool regionSampling = false;
 
-    auto renderArea = DisplayRenderArea::create(mDisplay, sourceCrop, sourceCrop.getSize(),
-                                                ui::Dataspace::V0_SRGB, true, true);
+    auto renderArea =
+            DisplayRenderArea::create(mDisplay, sourceCrop, sourceCrop.getSize(),
+                                      ui::Dataspace::V0_SRGB,
+                                      RenderArea::Options::CAPTURE_SECURE_LAYERS |
+                                              RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION);
 
     auto traverseLayers = [this](const LayerVector::Visitor& visitor) {
         return mFlinger.traverseLayersInLayerStack(mDisplay->getLayerStack(),

diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 4fb0690..fc54a8b 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp

@@ -343,12 +343,15 @@
 }
 
 TEST_F(SchedulerTest, chooseDisplayModesMultipleDisplays) {
+    constexpr PhysicalDisplayId kActiveDisplayId = kDisplayId1;
     mScheduler->registerDisplay(kDisplayId1,
                                 std::make_shared<RefreshRateSelector>(kDisplay1Modes,
-                                                                      kDisplay1Mode60->getId()));
+                                                                      kDisplay1Mode60->getId()),
+                                kActiveDisplayId);
     mScheduler->registerDisplay(kDisplayId2,
                                 std::make_shared<RefreshRateSelector>(kDisplay2Modes,
-                                                                      kDisplay2Mode60->getId()));
+                                                                      kDisplay2Mode60->getId()),
+                                kActiveDisplayId);
 
     mScheduler->setDisplayPowerMode(kDisplayId1, hal::PowerMode::ON);
     mScheduler->setDisplayPowerMode(kDisplayId2, hal::PowerMode::ON);
@@ -411,10 +414,10 @@
     {
         // The kDisplayId3 does not support 120Hz, The pacesetter display rate is chosen to be 120
         // Hz. In this case only the display kDisplayId3 choose 60Hz as it does not support 120Hz.
-        mScheduler
-                ->registerDisplay(kDisplayId3,
-                                  std::make_shared<RefreshRateSelector>(kDisplay3Modes,
-                                                                        kDisplay3Mode60->getId()));
+        mScheduler->registerDisplay(kDisplayId3,
+                                    std::make_shared<RefreshRateSelector>(kDisplay3Modes,
+                                                                          kDisplay3Mode60->getId()),
+                                    kActiveDisplayId);
         mScheduler->setDisplayPowerMode(kDisplayId3, hal::PowerMode::ON);
 
         const GlobalSignals globalSignals = {.touch = true};
@@ -457,12 +460,15 @@
 }
 
 TEST_F(SchedulerTest, onFrameSignalMultipleDisplays) {
+    constexpr PhysicalDisplayId kActiveDisplayId = kDisplayId1;
     mScheduler->registerDisplay(kDisplayId1,
                                 std::make_shared<RefreshRateSelector>(kDisplay1Modes,
-                                                                      kDisplay1Mode60->getId()));
+                                                                      kDisplay1Mode60->getId()),
+                                kActiveDisplayId);
     mScheduler->registerDisplay(kDisplayId2,
                                 std::make_shared<RefreshRateSelector>(kDisplay2Modes,
-                                                                      kDisplay2Mode60->getId()));
+                                                                      kDisplay2Mode60->getId()),
+                                kActiveDisplayId);
 
     using VsyncIds = std::vector<std::pair<PhysicalDisplayId, VsyncId>>;
 
@@ -585,7 +591,8 @@
                                 mFlinger.getTimeStats(),
                                 mSchedulerCallback};
 
-    scheduler.registerDisplay(kMode->getPhysicalDisplayId(), vrrSelectorPtr, vrrTracker);
+    scheduler.registerDisplay(kMode->getPhysicalDisplayId(), vrrSelectorPtr, std::nullopt,
+                              vrrTracker);
     vrrSelectorPtr->setActiveMode(kMode->getId(), frameRate);
     scheduler.setRenderRate(kMode->getPhysicalDisplayId(), frameRate, /*applyImmediately*/ false);
     vrrTracker->addVsyncTimestamp(0);

diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index 198a5de..1f7bf5f 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h

@@ -53,7 +53,7 @@
                       factory, selectorPtr->getActiveMode().fps, timeStats) {
         const auto displayId = selectorPtr->getActiveMode().modePtr->getPhysicalDisplayId();
         registerDisplay(displayId, std::move(selectorPtr), std::move(controller),
-                        std::move(tracker));
+                        std::move(tracker), displayId);
 
         ON_CALL(*this, postMessage).WillByDefault([](sp<MessageHandler>&& handler) {
             // Execute task to prevent broken promise exception on destruction.
@@ -85,14 +85,16 @@
 
     void registerDisplay(
             PhysicalDisplayId displayId, RefreshRateSelectorPtr selectorPtr,
+            std::optional<PhysicalDisplayId> activeDisplayIdOpt = {},
             std::shared_ptr<VSyncTracker> vsyncTracker = std::make_shared<mock::VSyncTracker>()) {
         registerDisplay(displayId, std::move(selectorPtr),
-                        std::make_unique<mock::VsyncController>(), vsyncTracker);
+                        std::make_unique<mock::VsyncController>(), vsyncTracker,
+                        activeDisplayIdOpt.value_or(displayId));
     }
 
     void registerDisplay(PhysicalDisplayId displayId, RefreshRateSelectorPtr selectorPtr,
                          std::unique_ptr<VsyncController> controller,
-                         std::shared_ptr<VSyncTracker> tracker) {
+                         std::shared_ptr<VSyncTracker> tracker, PhysicalDisplayId activeDisplayId) {
         ftl::FakeGuard guard(kMainThreadContext);
         Scheduler::registerDisplayInternal(displayId, std::move(selectorPtr),
                                            std::shared_ptr<VsyncSchedule>(
@@ -101,16 +103,12 @@
                                                                              mock::VSyncDispatch>(),
                                                                      std::move(controller),
                                                                      mockRequestHardwareVsync
-                                                                             .AsStdFunction())));
+                                                                             .AsStdFunction())),
+                                           activeDisplayId);
     }
 
     testing::MockFunction<void(PhysicalDisplayId, bool)> mockRequestHardwareVsync;
 
-    void unregisterDisplay(PhysicalDisplayId displayId) {
-        ftl::FakeGuard guard(kMainThreadContext);
-        Scheduler::unregisterDisplay(displayId);
-    }
-
     void setDisplayPowerMode(PhysicalDisplayId displayId, hal::PowerMode powerMode) {
         ftl::FakeGuard guard(kMainThreadContext);
         Scheduler::setDisplayPowerMode(displayId, powerMode);
@@ -135,7 +133,9 @@
     using Scheduler::resyncAllToHardwareVsync;
 
     auto& mutableLayerHistory() { return mLayerHistory; }
-    auto& mutableAttachedChoreographers() { return mAttachedChoreographers; }
+    auto& mutableAttachedChoreographers() NO_THREAD_SAFETY_ANALYSIS {
+        return mAttachedChoreographers;
+    }
 
     size_t layerHistorySize() NO_THREAD_SAFETY_ANALYSIS {
         return mLayerHistory.mActiveLayerInfos.size() + mLayerHistory.mInactiveLayerInfos.size();

diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 007383b..c11b555 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h

@@ -547,7 +547,7 @@
     }
 
     auto flushTransactionQueues() {
-        return FTL_FAKE_GUARD(kMainThreadContext, mFlinger->flushTransactionQueues(kVsyncId));
+        return FTL_FAKE_GUARD(kMainThreadContext, mFlinger->flushTransactionQueues());
     }
 
     auto onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
@@ -663,8 +663,10 @@
      * post-conditions.
      */
 
-    const auto& displays() const { return mFlinger->mDisplays; }
-    const auto& physicalDisplays() const { return mFlinger->mPhysicalDisplays; }
+    const auto& displays() const NO_THREAD_SAFETY_ANALYSIS { return mFlinger->mDisplays; }
+    const auto& physicalDisplays() const NO_THREAD_SAFETY_ANALYSIS {
+        return mFlinger->mPhysicalDisplays;
+    }
     const auto& currentState() const { return mFlinger->mCurrentState; }
     const auto& drawingState() const { return mFlinger->mDrawingState; }
     const auto& transactionFlags() const { return mFlinger->mTransactionFlags; }
@@ -677,13 +679,17 @@
     auto& mutableDisplayModeController() { return mFlinger->mDisplayModeController; }
     auto& mutableCurrentState() { return mFlinger->mCurrentState; }
     auto& mutableDisplayColorSetting() { return mFlinger->mDisplayColorSetting; }
-    auto& mutableDisplays() { return mFlinger->mDisplays; }
-    auto& mutablePhysicalDisplays() { return mFlinger->mPhysicalDisplays; }
+    auto& mutableDisplays() NO_THREAD_SAFETY_ANALYSIS { return mFlinger->mDisplays; }
+    auto& mutablePhysicalDisplays() NO_THREAD_SAFETY_ANALYSIS {
+        return mFlinger->mPhysicalDisplays;
+    }
     auto& mutableDrawingState() { return mFlinger->mDrawingState; }
     auto& mutableGeometryDirty() { return mFlinger->mGeometryDirty; }
     auto& mutableVisibleRegionsDirty() { return mFlinger->mVisibleRegionsDirty; }
     auto& mutableMainThreadId() { return mFlinger->mMainThreadId; }
-    auto& mutablePendingHotplugEvents() { return mFlinger->mPendingHotplugEvents; }
+    auto& mutablePendingHotplugEvents() NO_THREAD_SAFETY_ANALYSIS {
+        return mFlinger->mPendingHotplugEvents;
+    }
     auto& mutableTransactionFlags() { return mFlinger->mTransactionFlags; }
     auto& mutableDebugDisableHWC() { return mFlinger->mDebugDisableHWC; }
     auto& mutableMaxRenderTargetSize() { return mFlinger->mMaxRenderTargetSize; }
@@ -691,7 +697,7 @@
     auto& mutableHwcDisplayData() { return getHwComposer().mDisplayData; }
     auto& mutableHwcPhysicalDisplayIdMap() { return getHwComposer().mPhysicalDisplayIdMap; }
     auto& mutablePrimaryHwcDisplayId() { return getHwComposer().mPrimaryHwcDisplayId; }
-    auto& mutableActiveDisplayId() { return mFlinger->mActiveDisplayId; }
+    auto& mutableActiveDisplayId() NO_THREAD_SAFETY_ANALYSIS { return mFlinger->mActiveDisplayId; }
     auto& mutablePreviouslyComposedLayers() { return mFlinger->mPreviouslyComposedLayers; }
 
     auto& mutableActiveDisplayRotationFlags() {
@@ -1118,8 +1124,8 @@
                 if (mFlinger.scheduler() && mSchedulerRegistration) {
                     mFlinger.scheduler()->registerDisplay(*physicalId,
                                                           mCreationArgs.refreshRateSelector,
-                                                          std::move(controller),
-                                                          std::move(tracker));
+                                                          std::move(controller), std::move(tracker),
+                                                          mFlinger.mutableActiveDisplayId());
                 }
             }
 

diff --git a/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp b/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp
index fb4ef70..7bf1674 100644
--- a/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp

@@ -131,14 +131,14 @@
         // add layers and add some layer transaction
         {
             frontend::Update update;
-            update.layerCreationArgs.emplace_back(std::move(
+            update.layerCreationArgs.emplace_back(
                     getLayerCreationArgs(mParentLayerId, /*parentId=*/UNASSIGNED_LAYER_ID,
                                          /*layerIdToMirror=*/UNASSIGNED_LAYER_ID, /*flags=*/123,
-                                         /*addToRoot=*/true)));
-            update.layerCreationArgs.emplace_back(std::move(
+                                         /*addToRoot=*/true));
+            update.layerCreationArgs.emplace_back(
                     getLayerCreationArgs(mChildLayerId, mParentLayerId,
                                          /*layerIdToMirror=*/UNASSIGNED_LAYER_ID, /*flags=*/456,
-                                         /*addToRoot=*/true)));
+                                         /*addToRoot=*/true));
             TransactionState transaction;
             transaction.id = 50;
             ResolvedComposerState layerState;

diff --git a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
index dec5fa5..8f21cdb 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h

@@ -31,6 +31,7 @@
     MOCK_METHOD(void, onExpectedPresentTimePosted, (TimePoint, ftl::NonNull<DisplayModePtr>, Fps),
                 (override));
     MOCK_METHOD(void, onCommitNotComposited, (PhysicalDisplayId), (override));
+    MOCK_METHOD(void, vrrDisplayIdle, (bool), (override));
 };
 
 struct NoOpSchedulerCallback final : ISchedulerCallback {
@@ -41,6 +42,7 @@
     void onChoreographerAttached() override {}
     void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
     void onCommitNotComposited(PhysicalDisplayId) override {}
+    void vrrDisplayIdle(bool) override {}
 };
 
 } // namespace android::scheduler::mock

diff --git a/vulkan/libvulkan/Android.bp b/vulkan/libvulkan/Android.bp
index 436e6c6..c8ff76a 100644
--- a/vulkan/libvulkan/Android.bp
+++ b/vulkan/libvulkan/Android.bp

@@ -27,9 +27,6 @@
     symbol_file: "libvulkan.map.txt",
     first_version: "24",
     unversioned_until: "current",
-    export_header_libs: [
-        "ndk_vulkan_headers",
-    ],
 }
 
 cc_library_shared {

diff --git a/vulkan/libvulkan/driver.cpp b/vulkan/libvulkan/driver.cpp
index 3f89960..ef213f0 100644
--- a/vulkan/libvulkan/driver.cpp
+++ b/vulkan/libvulkan/driver.cpp

@@ -339,10 +339,13 @@
 
     ALOGD("Unload builtin Vulkan driver.");
 
-    // Close the opened device
-    int err = hal_.dev_->common.close(
-        const_cast<struct hw_device_t*>(&hal_.dev_->common));
-    ALOG_ASSERT(!err, "hw_device_t::close() failed.");
+    if (hal_.dev_->common.close != nullptr)
+    {
+        // Close the opened device
+        int err = hal_.dev_->common.close(
+            const_cast<struct hw_device_t*>(&hal_.dev_->common));
+        ALOG_ASSERT(!err, "hw_device_t::close() failed.");
+    }
 
     // Close the opened shared library in the hw_module_t
     android_unload_sphal_library(hal_.dev_->common.module->dso);

diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 9e67725..f01d1d9 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp

@@ -1215,8 +1215,15 @@
                             surfaceCompressionProps
                                 ->imageCompressionFixedRateFlags =
                                 compressionProps.imageCompressionFixedRateFlags;
-                        } else {
+                        } else if (compressionRes ==
+                                       VK_ERROR_OUT_OF_HOST_MEMORY ||
+                                   compressionRes ==
+                                       VK_ERROR_OUT_OF_DEVICE_MEMORY) {
                             return compressionRes;
+                        } else {
+                            // For any of the *_NOT_SUPPORTED errors we continue
+                            // onto the next format
+                            continue;
                         }
                     }
                 } break;
commit	c73f2d09e45de6fa9838442d1a1b37cac280b23a	[log] [tgz]
author	Rachel Lee <rnlee@google.com>	Fri Sep 20 23:26:56 2024 +0000
committer	Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>	Fri Sep 20 23:26:56 2024 +0000
tree	bbe5e397562c12ac8ffb944b9ec08a753c4d6b1d
parent	713ee06b99e64b11f01c97c22f10de70717ec2e9 [diff]
parent	726ca29066887e3eb993c3eafc3ab73c9d6707b3 [diff]