diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index 21df729..080ad42 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -28,7 +28,6 @@
 
 #include "fastboot.h"
 
-#include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
@@ -44,12 +43,10 @@
 #include <unistd.h>
 
 #include <chrono>
-#include <fstream>
 #include <functional>
 #include <iostream>
 #include <memory>
 #include <regex>
-#include <sstream>
 #include <string>
 #include <thread>
 #include <utility>
@@ -79,7 +76,6 @@
 #include "fastboot_driver_interface.h"
 #include "fs.h"
 #include "storage.h"
-#include "super_flash_helper.h"
 #include "task.h"
 #include "tcp.h"
 #include "transport.h"
@@ -93,7 +89,6 @@
 using android::base::Split;
 using android::base::Trim;
 using android::base::unique_fd;
-using namespace std::string_literals;
 using namespace std::placeholders;
 
 #define FASTBOOT_INFO_VERSION 1
@@ -350,8 +345,7 @@
 //
 // The returned Transport is a singleton, so multiple calls to this function will return the same
 // object, and the caller should not attempt to delete the returned Transport.
-static std::unique_ptr<Transport> open_device(const char* local_serial,
-                                              bool wait_for_device = true,
+static std::unique_ptr<Transport> open_device(const char* local_serial, bool wait_for_device = true,
                                               bool announce = true) {
     const Result<NetworkSerial, FastbootError> network_serial = ParseNetworkSerial(local_serial);
 
@@ -1883,11 +1877,10 @@
         // partitions (otherwise they would not mount on first boot). To enforce
         // this, we delete any logical partitions for the "other" slot.
         if (is_retrofit_device(fp_->fb)) {
-            std::string partition_name = image->part_name + "_"s + slot;
+            std::string partition_name = image->part_name + "_" + slot;
             if (image->IsSecondary() && should_flash_in_userspace(partition_name)) {
-                fp_->fb->DeletePartition(partition_name);
+                tasks.emplace_back(std::make_unique<DeleteTask>(fp_, partition_name));
             }
-            tasks.emplace_back(std::make_unique<DeleteTask>(fp_, partition_name));
         }
     }
 
@@ -2136,7 +2129,7 @@
     if (metadata.block_devices.size() > 1) {
         ok = WriteSplitImageFiles(temp_dir.path, metadata, block_size, {}, true);
     } else {
-        auto image_path = temp_dir.path + "/"s + super_bdev_name + ".img";
+        auto image_path = std::string(temp_dir.path) + "/" + std::string(super_bdev_name) + ".img";
         ok = WriteToImageFile(image_path, metadata, block_size, {}, true);
     }
     if (!ok) {
@@ -2155,7 +2148,7 @@
             image_name = partition + ".img";
         }
 
-        auto image_path = temp_dir.path + "/"s + image_name;
+        auto image_path = std::string(temp_dir.path) + "/" + image_name;
         auto flash = [&](const std::string& partition_name) {
             do_flash(partition_name.c_str(), image_path.c_str(), false, fp);
         };
diff --git a/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_test.cpp b/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_test.cpp
index 01fe06f..620ecbd 100644
--- a/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_test.cpp
+++ b/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_test.cpp
@@ -714,10 +714,12 @@
     }
     ASSERT_NO_FATAL_FAILURE(SetupDefault());
     // Issue I/O before merge begins
-    std::async(std::launch::async, &SnapuserdTest::ReadSnapshotDeviceAndValidate, this);
+    auto read_future =
+            std::async(std::launch::async, &SnapuserdTest::ReadSnapshotDeviceAndValidate, this);
     // Start the merge
     ASSERT_TRUE(Merge());
     ValidateMerge();
+    read_future.wait();
 }
 
 TEST_F(SnapuserdTest, Snapshot_MERGE_IO_TEST_1) {
@@ -728,9 +730,11 @@
     // Start the merge
     ASSERT_TRUE(StartMerge());
     // Issue I/O in parallel when merge is in-progress
-    std::async(std::launch::async, &SnapuserdTest::ReadSnapshotDeviceAndValidate, this);
+    auto read_future =
+            std::async(std::launch::async, &SnapuserdTest::ReadSnapshotDeviceAndValidate, this);
     CheckMergeCompletion();
     ValidateMerge();
+    read_future.wait();
 }
 
 TEST_F(SnapuserdTest, Snapshot_Merge_Resume) {
diff --git a/healthd/BatteryMonitor.cpp b/healthd/BatteryMonitor.cpp
index e4cf582..0c97632 100644
--- a/healthd/BatteryMonitor.cpp
+++ b/healthd/BatteryMonitor.cpp
@@ -432,7 +432,7 @@
     }
 
     if (readFromFile(mHealthdConfig->batteryTechnologyPath, &buf) > 0)
-        mHealthInfo->batteryTechnology = String8(buf.c_str());
+        mHealthInfo->batteryTechnology = buf;
 
     if (readFromFile(mHealthdConfig->chargingPolicyPath, &buf) > 0)
         mHealthInfo->chargingPolicy = getBatteryChargingPolicy(buf.c_str());
@@ -786,39 +786,35 @@
                     path.clear();
                     path.appendFormat("%s/%s/status", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryStatusPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryStatusPath = path;
                 }
 
                 if (mHealthdConfig->batteryHealthPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/health", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryHealthPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryHealthPath = path;
                 }
 
                 if (mHealthdConfig->batteryPresentPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/present", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryPresentPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryPresentPath = path;
                 }
 
                 if (mHealthdConfig->batteryCapacityPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/capacity", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryCapacityPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryCapacityPath = path;
                 }
 
                 if (mHealthdConfig->batteryVoltagePath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/voltage_now",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) {
+                    if (access(path.c_str(), R_OK) == 0) {
                         mHealthdConfig->batteryVoltagePath = path;
                     }
                 }
@@ -827,7 +823,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/charge_full",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryFullChargePath = path;
                 }
 
@@ -835,7 +831,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/current_now",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryCurrentNowPath = path;
                 }
 
@@ -843,27 +839,29 @@
                     path.clear();
                     path.appendFormat("%s/%s/cycle_count",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryCycleCountPath = path;
                 }
 
                 if (mHealthdConfig->batteryCapacityLevelPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/capacity_level", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) mHealthdConfig->batteryCapacityLevelPath = path;
+                    if (access(path.c_str(), R_OK) == 0) {
+                        mHealthdConfig->batteryCapacityLevelPath = path;
+                    }
                 }
 
                 if (mHealthdConfig->batteryChargeTimeToFullNowPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/time_to_full_now", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryChargeTimeToFullNowPath = path;
                 }
 
                 if (mHealthdConfig->batteryFullChargeDesignCapacityUahPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/charge_full_design", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryFullChargeDesignCapacityUahPath = path;
                 }
 
@@ -871,7 +869,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/current_avg",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryCurrentAvgPath = path;
                 }
 
@@ -879,7 +877,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/charge_counter",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryChargeCounterPath = path;
                 }
 
@@ -887,7 +885,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/temp", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0) {
+                    if (access(path.c_str(), R_OK) == 0) {
                         mHealthdConfig->batteryTemperaturePath = path;
                     }
                 }
@@ -896,19 +894,19 @@
                     path.clear();
                     path.appendFormat("%s/%s/technology",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryTechnologyPath = path;
                 }
 
                 if (mHealthdConfig->batteryStateOfHealthPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/state_of_health", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) {
+                    if (access(path.c_str(), R_OK) == 0) {
                         mHealthdConfig->batteryStateOfHealthPath = path;
                     } else {
                         path.clear();
                         path.appendFormat("%s/%s/health_index", POWER_SUPPLY_SYSFS_PATH, name);
-                        if (access(path, R_OK) == 0)
+                        if (access(path.c_str(), R_OK) == 0)
                             mHealthdConfig->batteryStateOfHealthPath = path;
                     }
                 }
@@ -916,32 +914,36 @@
                 if (mHealthdConfig->batteryHealthStatusPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/health_status", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) mHealthdConfig->batteryHealthStatusPath = path;
+                    if (access(path.c_str(), R_OK) == 0) {
+                        mHealthdConfig->batteryHealthStatusPath = path;
+                    }
                 }
 
                 if (mHealthdConfig->batteryManufacturingDatePath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/manufacturing_date", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryManufacturingDatePath = path;
                 }
 
                 if (mHealthdConfig->batteryFirstUsageDatePath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/first_usage_date", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) mHealthdConfig->batteryFirstUsageDatePath = path;
+                    if (access(path.c_str(), R_OK) == 0) {
+                        mHealthdConfig->batteryFirstUsageDatePath = path;
+                    }
                 }
 
                 if (mHealthdConfig->chargingStatePath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/charging_state", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) mHealthdConfig->chargingStatePath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->chargingStatePath = path;
                 }
 
                 if (mHealthdConfig->chargingPolicyPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/charging_policy", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) mHealthdConfig->chargingPolicyPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->chargingPolicyPath = path;
                 }
 
                 break;
diff --git a/healthd/BatteryMonitor_v1.cpp b/healthd/BatteryMonitor_v1.cpp
index 686c338..2e0cfc9 100644
--- a/healthd/BatteryMonitor_v1.cpp
+++ b/healthd/BatteryMonitor_v1.cpp
@@ -352,7 +352,7 @@
         mHealthInfo->batteryHealth = getBatteryHealth(buf.c_str());
 
     if (readFromFile(mHealthdConfig->batteryTechnologyPath, &buf) > 0)
-        mHealthInfo->batteryTechnology = String8(buf.c_str());
+        mHealthInfo->batteryTechnology = buf;
 
     double MaxPower = 0;
 
@@ -639,39 +639,35 @@
                     path.clear();
                     path.appendFormat("%s/%s/status", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryStatusPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryStatusPath = path;
                 }
 
                 if (mHealthdConfig->batteryHealthPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/health", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryHealthPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryHealthPath = path;
                 }
 
                 if (mHealthdConfig->batteryPresentPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/present", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryPresentPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryPresentPath = path;
                 }
 
                 if (mHealthdConfig->batteryCapacityPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/capacity", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0)
-                        mHealthdConfig->batteryCapacityPath = path;
+                    if (access(path.c_str(), R_OK) == 0) mHealthdConfig->batteryCapacityPath = path;
                 }
 
                 if (mHealthdConfig->batteryVoltagePath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/voltage_now",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) {
+                    if (access(path.c_str(), R_OK) == 0) {
                         mHealthdConfig->batteryVoltagePath = path;
                     }
                 }
@@ -680,7 +676,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/charge_full",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryFullChargePath = path;
                 }
 
@@ -688,7 +684,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/current_now",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryCurrentNowPath = path;
                 }
 
@@ -696,27 +692,29 @@
                     path.clear();
                     path.appendFormat("%s/%s/cycle_count",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryCycleCountPath = path;
                 }
 
                 if (mHealthdConfig->batteryCapacityLevelPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/capacity_level", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0) mHealthdConfig->batteryCapacityLevelPath = path;
+                    if (access(path.c_str(), R_OK) == 0) {
+                        mHealthdConfig->batteryCapacityLevelPath = path;
+                    }
                 }
 
                 if (mHealthdConfig->batteryChargeTimeToFullNowPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/time_to_full_now", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryChargeTimeToFullNowPath = path;
                 }
 
                 if (mHealthdConfig->batteryFullChargeDesignCapacityUahPath.empty()) {
                     path.clear();
                     path.appendFormat("%s/%s/charge_full_design", POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryFullChargeDesignCapacityUahPath = path;
                 }
 
@@ -724,7 +722,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/current_avg",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryCurrentAvgPath = path;
                 }
 
@@ -732,7 +730,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/charge_counter",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryChargeCounterPath = path;
                 }
 
@@ -740,7 +738,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/temp", POWER_SUPPLY_SYSFS_PATH,
                                       name);
-                    if (access(path, R_OK) == 0) {
+                    if (access(path.c_str(), R_OK) == 0) {
                         mHealthdConfig->batteryTemperaturePath = path;
                     }
                 }
@@ -749,7 +747,7 @@
                     path.clear();
                     path.appendFormat("%s/%s/technology",
                                       POWER_SUPPLY_SYSFS_PATH, name);
-                    if (access(path, R_OK) == 0)
+                    if (access(path.c_str(), R_OK) == 0)
                         mHealthdConfig->batteryTechnologyPath = path;
                 }
 
diff --git a/init/builtins.cpp b/init/builtins.cpp
index a70e866..a95a4a3 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -475,8 +475,6 @@
     { 0,            0 },
 };
 
-#define DATA_MNT_POINT "/data"
-
 /* mount <type> <device> <path> <flags ...> <options> */
 static Result<void> do_mount(const BuiltinArguments& args) {
     const char* options = nullptr;
diff --git a/init/first_stage_init.cpp b/init/first_stage_init.cpp
index c6a287a..e48fa15 100644
--- a/init/first_stage_init.cpp
+++ b/init/first_stage_init.cpp
@@ -239,8 +239,12 @@
             module_dirs.emplace_back(entry->d_name);
             break;
         }
-        // Ignore _16k/_64k module dirs on 4K kernels
-        if (GetPageSizeSuffix(entry->d_name) != page_size_suffix) {
+        // Is a directory does not have page size suffix, it does not mean this directory is for 4K
+        // kernels. Certain 16K kernel builds put all modules in /lib/modules/`uname -r` without any
+        // suffix. Therefore, only ignore a directory if it has _16k/_64k suffix and the suffix does
+        // not match system page size.
+        const auto dir_page_size_suffix = GetPageSizeSuffix(entry->d_name);
+        if (!dir_page_size_suffix.empty() && dir_page_size_suffix != page_size_suffix) {
             continue;
         }
         int dir_major = 0, dir_minor = 0;
diff --git a/init/security.cpp b/init/security.cpp
index 445286a..0c73fae 100644
--- a/init/security.cpp
+++ b/init/security.cpp
@@ -106,13 +106,9 @@
     // uml does not support mmap_rnd_bits
     return {};
 #elif defined(__aarch64__)
-    // arm64 architecture supports 18 - 33 rnd bits depending on pagesize and
-    // VA_SIZE. However the kernel might have been compiled with a narrower
-    // range using CONFIG_ARCH_MMAP_RND_BITS_MIN/MAX. To use the maximum
-    // supported number of bits, we start from the theoretical maximum of 33
-    // bits and try smaller values until we reach 24 bits which is the
-    // Android-specific minimum. Don't go lower even if the configured maximum
-    // is smaller than 24.
+    // arm64 supports 14 - 33 rnd bits depending on page size and ARM64_VA_BITS.
+    // The kernel (6.5) still defaults to 39 va bits for 4KiB pages, so shipping
+    // devices are only getting 24 bits of randomness in practice.
     if (SetMmapRndBitsMin(33, 24, false) && (!Has32BitAbi() || SetMmapRndBitsMin(16, 16, true))) {
         return {};
     }
diff --git a/libcutils/arch-x86/cache.h b/libcutils/arch-x86/cache.h
deleted file mode 100644
index 1c22fea..0000000
--- a/libcutils/arch-x86/cache.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2010 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.
- */
-
-#if defined(__slm__)
-/* Values are optimized for Silvermont */
-#define SHARED_CACHE_SIZE   (1024*1024)         /* Silvermont L2 Cache */
-#define DATA_CACHE_SIZE     (24*1024)           /* Silvermont L1 Data Cache */
-#else
-/* Values are optimized for Atom */
-#define SHARED_CACHE_SIZE   (512*1024)          /* Atom L2 Cache */
-#define DATA_CACHE_SIZE     (24*1024)           /* Atom L1 Data Cache */
-#endif
-
-#define SHARED_CACHE_SIZE_HALF  (SHARED_CACHE_SIZE / 2)
-#define DATA_CACHE_SIZE_HALF    (DATA_CACHE_SIZE / 2)
diff --git a/libcutils/arch-x86_64/cache.h b/libcutils/arch-x86_64/cache.h
deleted file mode 100644
index f144309..0000000
--- a/libcutils/arch-x86_64/cache.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2014 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.
- */
-
-/* Values are optimized for Silvermont */
-#define SHARED_CACHE_SIZE	(1024*1024)			/* Silvermont L2 Cache */
-#define DATA_CACHE_SIZE		(24*1024)			/* Silvermont L1 Data Cache */
-
-#define SHARED_CACHE_SIZE_HALF	(SHARED_CACHE_SIZE / 2)
-#define DATA_CACHE_SIZE_HALF	(DATA_CACHE_SIZE / 2)
diff --git a/libcutils/ashmem-dev.cpp b/libcutils/ashmem-dev.cpp
index 6a27f9a..5e01da9 100644
--- a/libcutils/ashmem-dev.cpp
+++ b/libcutils/ashmem-dev.cpp
@@ -44,9 +44,6 @@
 #include <android-base/strings.h>
 #include <android-base/unique_fd.h>
 
-/* Will be added to UAPI once upstream change is merged */
-#define F_SEAL_FUTURE_WRITE 0x0010
-
 /*
  * The minimum vendor API level at and after which it is safe to use memfd.
  * This is to facilitate deprecation of ashmem.
diff --git a/libcutils/iosched_policy.cpp b/libcutils/iosched_policy.cpp
index 012c537..f7c724d 100644
--- a/libcutils/iosched_policy.cpp
+++ b/libcutils/iosched_policy.cpp
@@ -24,8 +24,7 @@
 #include <unistd.h>
 
 #if defined(__ANDROID__)
-#define IOPRIO_WHO_PROCESS (1)
-#define IOPRIO_CLASS_SHIFT (13)
+#include <linux/ioprio.h>
 #include <sys/syscall.h>
 #define __android_unused
 #else
diff --git a/libutils/CallStack.cpp b/libutils/CallStack.cpp
index 4dcb35b..11f2c92 100644
--- a/libutils/CallStack.cpp
+++ b/libutils/CallStack.cpp
@@ -82,7 +82,7 @@
 
 void CallStack::print(Printer& printer) const {
     for (size_t i = 0; i < mFrameLines.size(); i++) {
-        printer.printLine(mFrameLines[i]);
+        printer.printLine(mFrameLines[i].c_str());
     }
 }
 
diff --git a/libutils/String16_fuzz.cpp b/libutils/String16_fuzz.cpp
index a271aee..8f9781b 100644
--- a/libutils/String16_fuzz.cpp
+++ b/libutils/String16_fuzz.cpp
@@ -13,7 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#include <functional>
 #include <iostream>
+#include <vector>
 
 #include "fuzzer/FuzzedDataProvider.h"
 #include "utils/String16.h"
diff --git a/libutils/String16_test.cpp b/libutils/String16_test.cpp
index c6e6f74..6f4642e 100644
--- a/libutils/String16_test.cpp
+++ b/libutils/String16_test.cpp
@@ -33,50 +33,50 @@
 
 TEST(String16Test, FromChar16_t) {
     String16 tmp(u"Verify me");
-    EXPECT_STR16EQ(u"Verify me", tmp);
+    EXPECT_STR16EQ(u"Verify me", tmp.c_str());
 }
 
 TEST(String16Test, FromChar16_tSized) {
     String16 tmp(u"Verify me", 7);
-    EXPECT_STR16EQ(u"Verify ", tmp);
+    EXPECT_STR16EQ(u"Verify ", tmp.c_str());
 }
 
 TEST(String16Test, FromChar) {
     String16 tmp("Verify me");
-    EXPECT_STR16EQ(u"Verify me", tmp);
+    EXPECT_STR16EQ(u"Verify me", tmp.c_str());
 }
 
 TEST(String16Test, FromCharSized) {
     String16 tmp("Verify me", 7);
-    EXPECT_STR16EQ(u"Verify ", tmp);
+    EXPECT_STR16EQ(u"Verify ", tmp.c_str());
 }
 
 TEST(String16Test, Copy) {
     String16 tmp("Verify me");
     String16 another = tmp;
-    EXPECT_STR16EQ(u"Verify me", tmp);
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", tmp.c_str());
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
 }
 
 TEST(String16Test, CopyAssign) {
     String16 tmp("Verify me");
     String16 another;
     another = tmp;
-    EXPECT_STR16EQ(u"Verify me", tmp);
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", tmp.c_str());
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
 }
 
 TEST(String16Test, Move) {
     String16 tmp("Verify me");
     String16 another(std::move(tmp));
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
 }
 
 TEST(String16Test, MoveAssign) {
     String16 tmp("Verify me");
     String16 another;
     another = std::move(tmp);
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
 }
 
 TEST(String16Test, Size) {
@@ -88,27 +88,27 @@
     String16 tmp("Verify me");
     tmp.setTo(u"New content");
     EXPECT_EQ(11U, tmp.size());
-    EXPECT_STR16EQ(u"New content", tmp);
+    EXPECT_STR16EQ(u"New content", tmp.c_str());
 }
 
 TEST(String16Test, Append) {
     String16 tmp("Verify me");
     tmp.append(String16("Hello"));
     EXPECT_EQ(14U, tmp.size());
-    EXPECT_STR16EQ(u"Verify meHello", tmp);
+    EXPECT_STR16EQ(u"Verify meHello", tmp.c_str());
 }
 
 TEST(String16Test, Insert) {
     String16 tmp("Verify me");
     tmp.insert(6, u"Insert");
     EXPECT_EQ(15U, tmp.size());
-    EXPECT_STR16EQ(u"VerifyInsert me", tmp);
+    EXPECT_STR16EQ(u"VerifyInsert me", tmp.c_str());
 }
 
 TEST(String16Test, ReplaceAll) {
     String16 tmp("Verify verify Verify");
     tmp.replaceAll(u'r', u'!');
-    EXPECT_STR16EQ(u"Ve!ify ve!ify Ve!ify", tmp);
+    EXPECT_STR16EQ(u"Ve!ify ve!ify Ve!ify", tmp.c_str());
 }
 
 TEST(String16Test, Compare) {
@@ -127,8 +127,8 @@
 TEST(String16Test, StaticStringCopy) {
     StaticString16 tmp(u"Verify me");
     String16 another = tmp;
-    EXPECT_STR16EQ(u"Verify me", tmp);
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", tmp.c_str());
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
     EXPECT_TRUE(tmp.isStaticString());
     EXPECT_TRUE(another.isStaticString());
 }
@@ -136,7 +136,7 @@
 TEST(String16Test, StaticStringMove) {
     StaticString16 tmp(u"Verify me");
     String16 another(std::move(tmp));
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
     EXPECT_TRUE(another.isStaticString());
 }
 
@@ -157,7 +157,7 @@
     StaticString16 tmp(u"Verify me");
     tmp.append(String16("Hello"));
     EXPECT_EQ(14U, tmp.size());
-    EXPECT_STR16EQ(u"Verify meHello", tmp);
+    EXPECT_STR16EQ(u"Verify meHello", tmp.c_str());
     EXPECT_FALSE(tmp.isStaticString());
 }
 
@@ -165,14 +165,14 @@
     StaticString16 tmp(u"Verify me");
     tmp.insert(6, u"Insert");
     EXPECT_EQ(15U, tmp.size());
-    EXPECT_STR16EQ(u"VerifyInsert me", tmp);
+    EXPECT_STR16EQ(u"VerifyInsert me", tmp.c_str());
     EXPECT_FALSE(tmp.isStaticString());
 }
 
 TEST(String16Test, StaticStringReplaceAll) {
     StaticString16 tmp(u"Verify verify Verify");
     tmp.replaceAll(u'r', u'!');
-    EXPECT_STR16EQ(u"Ve!ify ve!ify Ve!ify", tmp);
+    EXPECT_STR16EQ(u"Ve!ify ve!ify Ve!ify", tmp.c_str());
     EXPECT_FALSE(tmp.isStaticString());
 }
 
@@ -185,17 +185,17 @@
     StaticString16 tmp(u"Verify me");
     String16 another(u"nonstatic");
     another = tmp;
-    EXPECT_STR16EQ(u"Verify me", tmp);
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", tmp.c_str());
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
 }
 
 TEST(String16Test, StringCopyAssignFromStaticString) {
     StaticString16 tmp(u"Verify me");
     String16 another(u"nonstatic");
     another = tmp;
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
     EXPECT_TRUE(another.isStaticString());
-    EXPECT_STR16EQ(u"Verify me", tmp);
+    EXPECT_STR16EQ(u"Verify me", tmp.c_str());
     EXPECT_TRUE(tmp.isStaticString());
 }
 
@@ -203,7 +203,7 @@
     StaticString16 tmp(u"Verify me");
     String16 another(u"nonstatic");
     another = std::move(tmp);
-    EXPECT_STR16EQ(u"Verify me", another);
+    EXPECT_STR16EQ(u"Verify me", another.c_str());
     EXPECT_TRUE(another.isStaticString());
 }
 
@@ -221,19 +221,19 @@
 TEST(String16Test, ValidUtf8Conversion) {
     String16 another("abcdef");
     EXPECT_EQ(6U, another.size());
-    EXPECT_STR16EQ(another, u"abcdef");
+    EXPECT_STR16EQ(another.c_str(), u"abcdef");
 }
 
 TEST(String16Test, append) {
     String16 s;
     EXPECT_EQ(OK, s.append(String16(u"foo")));
-    EXPECT_STR16EQ(u"foo", s);
+    EXPECT_STR16EQ(u"foo", s.c_str());
     EXPECT_EQ(OK, s.append(String16(u"bar")));
-    EXPECT_STR16EQ(u"foobar", s);
+    EXPECT_STR16EQ(u"foobar", s.c_str());
     EXPECT_EQ(OK, s.append(u"baz", 0));
-    EXPECT_STR16EQ(u"foobar", s);
+    EXPECT_STR16EQ(u"foobar", s.c_str());
     EXPECT_EQ(NO_MEMORY, s.append(u"baz", SIZE_MAX));
-    EXPECT_STR16EQ(u"foobar", s);
+    EXPECT_STR16EQ(u"foobar", s.c_str());
 }
 
 TEST(String16Test, insert) {
@@ -241,19 +241,19 @@
 
     // Inserting into the empty string inserts at the start.
     EXPECT_EQ(OK, s.insert(123, u"foo"));
-    EXPECT_STR16EQ(u"foo", s);
+    EXPECT_STR16EQ(u"foo", s.c_str());
 
     // Inserting zero characters at any position is okay, but won't expand the string.
     EXPECT_EQ(OK, s.insert(123, u"foo", 0));
-    EXPECT_STR16EQ(u"foo", s);
+    EXPECT_STR16EQ(u"foo", s.c_str());
 
     // Inserting past the end of a non-empty string appends.
     EXPECT_EQ(OK, s.insert(123, u"bar"));
-    EXPECT_STR16EQ(u"foobar", s);
+    EXPECT_STR16EQ(u"foobar", s.c_str());
 
     EXPECT_EQ(OK, s.insert(3, u"!"));
-    EXPECT_STR16EQ(u"foo!bar", s);
+    EXPECT_STR16EQ(u"foo!bar", s.c_str());
 
     EXPECT_EQ(NO_MEMORY, s.insert(3, u"", SIZE_MAX));
-    EXPECT_STR16EQ(u"foo!bar", s);
+    EXPECT_STR16EQ(u"foo!bar", s.c_str());
 }
diff --git a/libutils/String8_test.cpp b/libutils/String8_test.cpp
index 9c12cb1..e1fd13a 100644
--- a/libutils/String8_test.cpp
+++ b/libutils/String8_test.cpp
@@ -100,19 +100,19 @@
 TEST_F(String8Test, ValidUtf16Conversion) {
     char16_t tmp[] = u"abcdef";
     String8 valid = String8(String16(tmp));
-    EXPECT_STREQ(valid, "abcdef");
+    EXPECT_STREQ(valid.c_str(), "abcdef");
 }
 
 TEST_F(String8Test, append) {
     String8 s;
     EXPECT_EQ(OK, s.append("foo"));
-    EXPECT_STREQ("foo", s);
+    EXPECT_STREQ("foo", s.c_str());
     EXPECT_EQ(OK, s.append("bar"));
-    EXPECT_STREQ("foobar", s);
+    EXPECT_STREQ("foobar", s.c_str());
     EXPECT_EQ(OK, s.append("baz", 0));
-    EXPECT_STREQ("foobar", s);
+    EXPECT_STREQ("foobar", s.c_str());
     EXPECT_EQ(NO_MEMORY, s.append("baz", SIZE_MAX));
-    EXPECT_STREQ("foobar", s);
+    EXPECT_STREQ("foobar", s.c_str());
 }
 
 TEST_F(String8Test, removeAll) {
@@ -123,12 +123,12 @@
 
     // expect to return true and string content should remain unchanged
     EXPECT_TRUE(s.removeAll(""));
-    EXPECT_STREQ("Hello, world!", s);
+    EXPECT_STREQ("Hello, world!", s.c_str());
 
     // expect to return false
     EXPECT_FALSE(s.removeAll("x"));
-    EXPECT_STREQ("Hello, world!", s);
+    EXPECT_STREQ("Hello, world!", s.c_str());
 
     EXPECT_TRUE(s.removeAll("o"));
-    EXPECT_STREQ("Hell, wrld!", s);
+    EXPECT_STREQ("Hell, wrld!", s.c_str());
 }
diff --git a/trusty/apploader/apploader.cpp b/trusty/apploader/apploader.cpp
index 17d083c..f782d2a 100644
--- a/trusty/apploader/apploader.cpp
+++ b/trusty/apploader/apploader.cpp
@@ -19,6 +19,7 @@
 #include <BufferAllocator/BufferAllocator.h>
 #include <android-base/logging.h>
 #include <android-base/unique_fd.h>
+#include <assert.h>
 #include <fcntl.h>
 #include <getopt.h>
 #include <stdbool.h>
diff --git a/trusty/keymaster/TEST_MAPPING b/trusty/keymaster/TEST_MAPPING
index 0475e04..4f082d8 100644
--- a/trusty/keymaster/TEST_MAPPING
+++ b/trusty/keymaster/TEST_MAPPING
@@ -10,13 +10,15 @@
         "name": "RkpdAppUnitTests"
       },
       {
-        "name": "RkpdAppGoogleUnitTests"
+        "name": "RkpdAppGoogleUnitTests",
+        "keywords": ["internal"]
       },
       {
         "name": "RkpdAppIntegrationTests"
       },
       {
-        "name": "RkpdAppGoogleIntegrationTests"
+        "name": "RkpdAppGoogleIntegrationTests",
+        "keywords": ["internal"]
       }
   ]
 }
diff --git a/trusty/stats/test/stats_test.cpp b/trusty/stats/test/stats_test.cpp
index 1edddeb..1d6eb34 100644
--- a/trusty/stats/test/stats_test.cpp
+++ b/trusty/stats/test/stats_test.cpp
@@ -252,20 +252,20 @@
                     ::testing::AnyOf(::testing::Eq(TrustyAtoms::TrustyAppCrashed),
                                      ::testing::Eq(TrustyAtoms::TrustyError),
                                      ::testing::Eq(TrustyAtoms::TrustyStorageError)));
-        ASSERT_STREQ(String8(vendorAtom.reverseDomainName), "google.android.trusty");
+        ASSERT_EQ(String8(vendorAtom.reverseDomainName), "google.android.trusty");
         switch (vendorAtom.atomId) {
             case TrustyAtoms::TrustyAppCrashed:
                 ++atomAppCrashedCnt;
-                ASSERT_STREQ(String8(vendorAtom.values[0].get<VendorAtomValue::stringValue>()),
-                             "5247d19b-cf09-4272-a450-3ef20dbefc14");
+                ASSERT_EQ(String8(vendorAtom.values[0].get<VendorAtomValue::stringValue>()),
+                          "5247d19b-cf09-4272-a450-3ef20dbefc14");
                 break;
             case TrustyAtoms::TrustyStorageError:
                 ++atomStorageErrorCnt;
                 ASSERT_EQ(vendorAtom.values[0].get<VendorAtomValue::intValue>(), 5);
-                ASSERT_STREQ(String8(vendorAtom.values[1].get<VendorAtomValue::stringValue>()),
-                             "5247d19b-cf09-4272-a450-3ef20dbefc14");
-                ASSERT_STREQ(String8(vendorAtom.values[2].get<VendorAtomValue::stringValue>()),
-                             "5247d19b-cf09-4272-a450-3ef20dbefc14");
+                ASSERT_EQ(String8(vendorAtom.values[1].get<VendorAtomValue::stringValue>()),
+                          "5247d19b-cf09-4272-a450-3ef20dbefc14");
+                ASSERT_EQ(String8(vendorAtom.values[2].get<VendorAtomValue::stringValue>()),
+                          "5247d19b-cf09-4272-a450-3ef20dbefc14");
                 ASSERT_EQ(vendorAtom.values[3].get<VendorAtomValue::intValue>(), 1);
                 ASSERT_EQ(vendorAtom.values[4].get<VendorAtomValue::intValue>(), 3);
                 ASSERT_EQ(vendorAtom.values[5].get<VendorAtomValue::longValue>(),
@@ -330,13 +330,13 @@
                     ::testing::AnyOf(::testing::Eq(TrustyAtoms::TrustyAppCrashed),
                                      ::testing::Eq(TrustyAtoms::TrustyError),
                                      ::testing::Eq(TrustyAtoms::TrustyStorageError)));
-        ASSERT_STREQ(String8(vendorAtom.reverseDomainName), "google.android.trusty");
+        ASSERT_EQ(String8(vendorAtom.reverseDomainName), "google.android.trusty");
 
         switch (vendorAtom.atomId) {
             case TrustyAtoms::TrustyAppCrashed:
                 ++atomAppCrashedCnt;
-                ASSERT_STREQ(String8(vendorAtom.values[0].get<VendorAtomValue::stringValue>()),
-                             kTrustyCrasherUuid);
+                ASSERT_EQ(String8(vendorAtom.values[0].get<VendorAtomValue::stringValue>()),
+                          kTrustyCrasherUuid);
                 atomCrashReasons.push_back(vendorAtom.values[1].get<VendorAtomValue::intValue>());
                 break;
             case TrustyAtoms::TrustyStorageError:
@@ -344,7 +344,7 @@
                 break;
             case TrustyAtoms::TrustyError:
                 ++atomTrustyErrorCnt;
-                ASSERT_STREQ(String8(vendorAtom.values[1].get<VendorAtomValue::stringValue>()), "");
+                ASSERT_EQ(String8(vendorAtom.values[1].get<VendorAtomValue::stringValue>()), "");
                 break;
             default:
                 FAIL() << "Unknown vendor atom ID: " << vendorAtom.atomId;