diff --git a/cmds/dumpstate/DumpstateInternal.cpp b/cmds/dumpstate/DumpstateInternal.cpp
index 0343277..0b42647 100644
--- a/cmds/dumpstate/DumpstateInternal.cpp
+++ b/cmds/dumpstate/DumpstateInternal.cpp
@@ -18,6 +18,7 @@
 
 #include "DumpstateInternal.h"
 
+#include <errno.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/cmds/dumpstate/utils.cpp b/cmds/dumpstate/utils.cpp
index 91deb36..bd0e110 100644
--- a/cmds/dumpstate/utils.cpp
+++ b/cmds/dumpstate/utils.cpp
@@ -96,8 +96,9 @@
         "android.hardware.bluetooth@1.0::IBluetoothHci",
         "android.hardware.camera.provider@2.4::ICameraProvider",
         "android.hardware.graphics.composer@2.1::IComposer",
-        "android.hardware.vr@1.0::IVr",
         "android.hardware.media.omx@1.0::IOmx",
+        "android.hardware.sensors@1.0::ISensors",
+        "android.hardware.vr@1.0::IVr",
         NULL,
 };
 
diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index 60c89a9..bac83a4 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -519,6 +519,9 @@
         if (access(path.c_str(), F_OK) == 0) {
             if (delete_dir_contents(path) != 0) {
                 res = error("Failed to delete contents of " + path);
+            } else if ((flags & (FLAG_CLEAR_CACHE_ONLY | FLAG_CLEAR_CODE_CACHE_ONLY)) == 0) {
+                remove_path_xattr(path, kXattrInodeCache);
+                remove_path_xattr(path, kXattrInodeCodeCache);
             }
         }
     }
diff --git a/cmds/installd/utils.cpp b/cmds/installd/utils.cpp
index 7c05417..8a0e137 100644
--- a/cmds/installd/utils.cpp
+++ b/cmds/installd/utils.cpp
@@ -733,6 +733,12 @@
     }
 }
 
+void remove_path_xattr(const std::string& path, const char* inode_xattr) {
+    if (removexattr(path.c_str(), inode_xattr) && errno != ENODATA) {
+        PLOG(ERROR) << "Failed to remove xattr " << inode_xattr << " at " << path;
+    }
+}
+
 /**
  * Validate that the path is valid in the context of the provided directory.
  * The path is allowed to have at most one subdirectory and no indirections
diff --git a/cmds/installd/utils.h b/cmds/installd/utils.h
index 070da84..ac6a488 100644
--- a/cmds/installd/utils.h
+++ b/cmds/installd/utils.h
@@ -120,6 +120,7 @@
 
 int write_path_inode(const std::string& parent, const char* name, const char* inode_xattr);
 std::string read_path_inode(const std::string& parent, const char* name, const char* inode_xattr);
+void remove_path_xattr(const std::string& path, const char* inode_xattr);
 
 int validate_system_app_path(const char* path);
 bool validate_secondary_dex_path(const std::string& pkgname, const std::string& dex_path,
diff --git a/libs/binder/MemoryDealer.cpp b/libs/binder/MemoryDealer.cpp
index 2a15773..1cfe02a 100644
--- a/libs/binder/MemoryDealer.cpp
+++ b/libs/binder/MemoryDealer.cpp
@@ -289,7 +289,15 @@
 SimpleBestFitAllocator::~SimpleBestFitAllocator()
 {
     while(!mList.isEmpty()) {
-        delete mList.remove(mList.head());
+        chunk_t* removed = mList.remove(mList.head());
+#ifdef __clang_analyzer__
+        // Clang static analyzer gets confused in this loop
+        // and generates a false positive warning about accessing
+        // memory that is already freed.
+        // Add an "assert" to avoid the confusion.
+        LOG_ALWAYS_FATAL_IF(mList.head() == removed);
+#endif
+        delete removed;
     }
 }
 
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index c2b10a9..54d4eab 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -335,16 +335,25 @@
         return OK;
     }
 
-    auto status = mSlots[slot].mFence->getStatus();
-
-    if (status == Fence::Status::Invalid) {
-        CB_LOGE("fence has invalid state");
+    // Check status of fences first because merging is expensive.
+    // Merging an invalid fence with any other fence results in an
+    // invalid fence.
+    auto currentStatus = mSlots[slot].mFence->getStatus();
+    if (currentStatus == Fence::Status::Invalid) {
+        CB_LOGE("Existing fence has invalid state");
         return BAD_VALUE;
     }
 
-    if (status == Fence::Status::Signaled) {
+    auto incomingStatus = fence->getStatus();
+    if (incomingStatus == Fence::Status::Invalid) {
+        CB_LOGE("New fence has invalid state");
         mSlots[slot].mFence = fence;
-    } else {  // status == Fence::Status::Unsignaled
+        return BAD_VALUE;
+    }
+
+    // If both fences are signaled or both are unsignaled, we need to merge
+    // them to get an accurate timestamp.
+    if (currentStatus == incomingStatus) {
         char fenceName[32] = {};
         snprintf(fenceName, 32, "%.28s:%d", mName.string(), slot);
         sp<Fence> mergedFence = Fence::merge(
@@ -357,7 +366,17 @@
             return BAD_VALUE;
         }
         mSlots[slot].mFence = mergedFence;
+    } else if (incomingStatus == Fence::Status::Unsignaled) {
+        // If one fence has signaled and the other hasn't, the unsignaled
+        // fence will approximately correspond with the correct timestamp.
+        // There's a small race if both fences signal at about the same time
+        // and their statuses are retrieved with unfortunate timing. However,
+        // by this point, they will have both signaled and only the timestamp
+        // will be slightly off; any dependencies after this point will
+        // already have been met.
+        mSlots[slot].mFence = fence;
     }
+    // else if (currentStatus == Fence::Status::Unsignaled) is a no-op.
 
     return OK;
 }
diff --git a/libs/sensor/Android.bp b/libs/sensor/Android.bp
index 171a627..940ff5a 100644
--- a/libs/sensor/Android.bp
+++ b/libs/sensor/Android.bp
@@ -16,9 +16,12 @@
     name: "libsensor",
 
     clang: true,
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
     cppflags: [
         "-Weverything",
-        "-Werror",
 
         // The static constructors and destructors in this library have not been noted to
         // introduce significant overheads
diff --git a/libs/sensor/tests/Android.bp b/libs/sensor/tests/Android.bp
index 9d530fc..9fd84bc 100644
--- a/libs/sensor/tests/Android.bp
+++ b/libs/sensor/tests/Android.bp
@@ -17,6 +17,8 @@
 
     clang: true,
 
+    cflags: ["-Wall", "-Werror"],
+
     srcs: [
         "Sensor_test.cpp",
     ],
diff --git a/libs/vr/libbufferhub/Android.bp b/libs/vr/libbufferhub/Android.bp
index 452bad0..17725f8 100644
--- a/libs/vr/libbufferhub/Android.bp
+++ b/libs/vr/libbufferhub/Android.bp
@@ -40,7 +40,8 @@
     srcs: sourceFiles,
     cflags: [
         "-DLOG_TAG=\"libbufferhub\"",
-        "-DTRACE=0"
+        "-DTRACE=0",
+        "-DATRACE_TAG=ATRACE_TAG_GRAPHICS",
     ],
     export_include_dirs: localIncludeFiles,
     static_libs: staticLibraries,
diff --git a/libs/vr/libbufferhubqueue/Android.bp b/libs/vr/libbufferhubqueue/Android.bp
index a587f95..a7c33ee 100644
--- a/libs/vr/libbufferhubqueue/Android.bp
+++ b/libs/vr/libbufferhubqueue/Android.bp
@@ -47,6 +47,7 @@
     cflags: [
         "-DLOG_TAG=\"libbufferhubqueue\"",
         "-DTRACE=0",
+        "-DATRACE_TAG=ATRACE_TAG_GRAPHICS",
     ],
     srcs: sourceFiles,
     export_include_dirs: includeFiles,
diff --git a/libs/vr/libdvr/Android.bp b/libs/vr/libdvr/Android.bp
index fa78b1c..7a7c8aa 100644
--- a/libs/vr/libdvr/Android.bp
+++ b/libs/vr/libdvr/Android.bp
@@ -21,6 +21,7 @@
 
 cflags = [
     "-DLOG_TAG=\"libdvr\"",
+    "-DTRACE=0",
 ]
 
 srcs = [
diff --git a/opengl/libs/EGL/BlobCache.cpp b/opengl/libs/EGL/BlobCache.cpp
index f1b30c7..0624b60 100644
--- a/opengl/libs/EGL/BlobCache.cpp
+++ b/opengl/libs/EGL/BlobCache.cpp
@@ -18,6 +18,7 @@
 
 #include "BlobCache.h"
 
+#include <errno.h>
 #include <inttypes.h>
 
 #include <cutils/properties.h>
diff --git a/opengl/tests/Android.bp b/opengl/tests/Android.bp
new file mode 100644
index 0000000..bf7aeb1
--- /dev/null
+++ b/opengl/tests/Android.bp
@@ -0,0 +1,4 @@
+subdirs = [
+    "hwc",
+    "lib",
+]
diff --git a/opengl/tests/Android.mk b/opengl/tests/Android.mk
index 3ae3b4e..92d223c 100644
--- a/opengl/tests/Android.mk
+++ b/opengl/tests/Android.mk
@@ -12,7 +12,6 @@
 	gl_perf \
 	gl_yuvtex \
 	gralloc \
-	hwc \
 	include \
 	lib \
 	linetex \
diff --git a/opengl/tests/hwc/Android.bp b/opengl/tests/hwc/Android.bp
new file mode 100644
index 0000000..b6e6f0e
--- /dev/null
+++ b/opengl/tests/hwc/Android.bp
@@ -0,0 +1,102 @@
+// 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.
+
+cc_defaults {
+
+    name: "hwc_tests_defaults",
+    cflags: [
+        "-DGL_GLEXT_PROTOTYPES",
+        "-DEGL_EGLEXT_PROTOTYPES",
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+}
+
+cc_library_static {
+
+    name: "libhwcTest",
+    srcs: ["hwcTestLib.cpp"],
+
+    static_libs: [
+        "libarect",
+        "libglTest",
+        "libtestUtil",
+    ],
+    defaults: ["hwc_tests_defaults"],
+}
+
+cc_defaults {
+
+    name: "hwc_lib_defaults",
+    shared_libs: [
+        "libcutils",
+        "libEGL",
+        "libGLESv2",
+        "libhardware",
+        "liblog",
+        "libui",
+        "libutils",
+    ],
+
+    static_libs: [
+        "libglTest",
+        "libhwcTest",
+        "libtestUtil",
+    ],
+}
+
+cc_test {
+
+    name: "hwcStress",
+    srcs: ["hwcStress.cpp"],
+
+    defaults: [
+        "hwc_lib_defaults",
+        "hwc_tests_defaults",
+    ],
+}
+
+cc_test {
+
+    name: "hwcRects",
+    srcs: ["hwcRects.cpp"],
+
+    defaults: [
+        "hwc_lib_defaults",
+        "hwc_tests_defaults",
+    ],
+}
+
+cc_test {
+
+    name: "hwcColorEquiv",
+    srcs: ["hwcColorEquiv.cpp"],
+
+    defaults: [
+        "hwc_lib_defaults",
+        "hwc_tests_defaults",
+    ],
+}
+
+cc_test {
+
+    name: "hwcCommit",
+    srcs: ["hwcCommit.cpp"],
+
+    defaults: [
+        "hwc_lib_defaults",
+        "hwc_tests_defaults",
+    ],
+}
diff --git a/opengl/tests/hwc/Android.mk b/opengl/tests/hwc/Android.mk
deleted file mode 100644
index 13337c2..0000000
--- a/opengl/tests/hwc/Android.mk
+++ /dev/null
@@ -1,150 +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.
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
-LOCAL_MODULE_TAGS := tests
-LOCAL_MODULE:= libhwcTest
-LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES -Wall -Wextra -Werror
-LOCAL_CXX_STL := libc++
-LOCAL_SRC_FILES:= hwcTestLib.cpp
-LOCAL_C_INCLUDES += system/extras/tests/include \
-    $(call include-path-for, opengl-tests-includes) \
-
-LOCAL_STATIC_LIBRARIES := libarect
-
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
-LOCAL_MODULE:= hwcStress
-LOCAL_MODULE_TAGS := tests
-LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES -Wall -Wextra -Werror
-LOCAL_CXX_STL := libc++
-LOCAL_SRC_FILES:= hwcStress.cpp
-
-LOCAL_SHARED_LIBRARIES := \
-    libcutils \
-    libEGL \
-    libGLESv2 \
-    libutils \
-    liblog \
-    libui \
-    libhardware \
-
-LOCAL_STATIC_LIBRARIES := \
-    libtestUtil \
-    libglTest \
-    libhwcTest \
-
-LOCAL_C_INCLUDES += \
-    system/extras/tests/include \
-    hardware/libhardware/include \
-    $(call include-path-for, opengl-tests-includes) \
-
-include $(BUILD_NATIVE_TEST)
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
-LOCAL_MODULE:= hwcRects
-LOCAL_MODULE_TAGS := tests
-LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES -Wall -Wextra -Werror
-LOCAL_CXX_STL := libc++
-LOCAL_SRC_FILES:= hwcRects.cpp
-
-LOCAL_SHARED_LIBRARIES := \
-    libcutils \
-    libEGL \
-    libGLESv2 \
-    libutils \
-    liblog \
-    libui \
-    libhardware \
-
-LOCAL_STATIC_LIBRARIES := \
-    libtestUtil \
-    libglTest \
-    libhwcTest \
-
-LOCAL_C_INCLUDES += \
-    system/extras/tests/include \
-    hardware/libhardware/include \
-    $(call include-path-for, opengl-tests-includes) \
-
-include $(BUILD_NATIVE_TEST)
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
-LOCAL_MODULE:= hwcColorEquiv
-LOCAL_MODULE_TAGS := tests
-LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES -Wall -Wextra -Werror
-LOCAL_CXX_STL := libc++
-LOCAL_SRC_FILES:= hwcColorEquiv.cpp
-
-LOCAL_SHARED_LIBRARIES := \
-    libcutils \
-    libEGL \
-    libGLESv2 \
-    libutils \
-    liblog \
-    libui \
-    libhardware \
-
-LOCAL_STATIC_LIBRARIES := \
-    libtestUtil \
-    libglTest \
-    libhwcTest \
-
-LOCAL_C_INCLUDES += \
-    system/extras/tests/include \
-    hardware/libhardware/include \
-    $(call include-path-for, opengl-tests-includes) \
-
-include $(BUILD_NATIVE_TEST)
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
-LOCAL_MODULE:= hwcCommit
-LOCAL_MODULE_TAGS := tests
-LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES -Wall -Wextra -Werror
-LOCAL_CXX_STL := libc++
-LOCAL_SRC_FILES:= hwcCommit.cpp
-
-LOCAL_SHARED_LIBRARIES := \
-    libcutils \
-    libEGL \
-    libGLESv2 \
-    libutils \
-    liblog \
-    libui \
-    libhardware \
-
-LOCAL_STATIC_LIBRARIES := \
-    libtestUtil \
-    libglTest \
-    libhwcTest \
-
-LOCAL_C_INCLUDES += \
-    system/extras/tests/include \
-    hardware/libhardware/include \
-    $(call include-path-for, opengl-tests-includes) \
-
-include $(BUILD_NATIVE_TEST)
diff --git a/opengl/tests/include/EGLUtils.h b/opengl/tests/include/EGLUtils.h
deleted file mode 100644
index 014c261..0000000
--- a/opengl/tests/include/EGLUtils.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * Copyright (C) 2009 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 ANDROID_UI_EGLUTILS_H
-#define ANDROID_UI_EGLUTILS_H
-
-#include <stdint.h>
-#include <stdlib.h>
-
-#include <system/window.h>
-#include <utils/Errors.h>
-#include <EGL/egl.h>
-
-
-// ----------------------------------------------------------------------------
-namespace android {
-// ----------------------------------------------------------------------------
-
-class EGLUtils
-{
-public:
-
-    static inline const char *strerror(EGLint err);
-
-    static inline status_t selectConfigForPixelFormat(
-            EGLDisplay dpy,
-            EGLint const* attrs,
-            int32_t format,
-            EGLConfig* outConfig);
-
-    static inline status_t selectConfigForNativeWindow(
-            EGLDisplay dpy,
-            EGLint const* attrs,
-            EGLNativeWindowType window,
-            EGLConfig* outConfig);
-};
-
-// ----------------------------------------------------------------------------
-
-const char *EGLUtils::strerror(EGLint err)
-{
-    switch (err){
-        case EGL_SUCCESS:           return "EGL_SUCCESS";
-        case EGL_NOT_INITIALIZED:   return "EGL_NOT_INITIALIZED";
-        case EGL_BAD_ACCESS:        return "EGL_BAD_ACCESS";
-        case EGL_BAD_ALLOC:         return "EGL_BAD_ALLOC";
-        case EGL_BAD_ATTRIBUTE:     return "EGL_BAD_ATTRIBUTE";
-        case EGL_BAD_CONFIG:        return "EGL_BAD_CONFIG";
-        case EGL_BAD_CONTEXT:       return "EGL_BAD_CONTEXT";
-        case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
-        case EGL_BAD_DISPLAY:       return "EGL_BAD_DISPLAY";
-        case EGL_BAD_MATCH:         return "EGL_BAD_MATCH";
-        case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
-        case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
-        case EGL_BAD_PARAMETER:     return "EGL_BAD_PARAMETER";
-        case EGL_BAD_SURFACE:       return "EGL_BAD_SURFACE";
-        case EGL_CONTEXT_LOST:      return "EGL_CONTEXT_LOST";
-        default: return "UNKNOWN";
-    }
-}
-
-status_t EGLUtils::selectConfigForPixelFormat(
-        EGLDisplay dpy,
-        EGLint const* attrs,
-        int32_t format,
-        EGLConfig* outConfig)
-{
-    EGLint numConfigs = -1, n=0;
-
-    if (!attrs)
-        return BAD_VALUE;
-
-    if (outConfig == NULL)
-        return BAD_VALUE;
-
-    // Get all the "potential match" configs...
-    if (eglGetConfigs(dpy, NULL, 0, &numConfigs) == EGL_FALSE)
-        return BAD_VALUE;
-
-    EGLConfig* const configs = (EGLConfig*)malloc(sizeof(EGLConfig)*numConfigs);
-    if (eglChooseConfig(dpy, attrs, configs, numConfigs, &n) == EGL_FALSE) {
-        free(configs);
-        return BAD_VALUE;
-    }
-
-    int i;
-    EGLConfig config = NULL;
-    for (i=0 ; i<n ; i++) {
-        EGLint nativeVisualId = 0;
-        eglGetConfigAttrib(dpy, configs[i], EGL_NATIVE_VISUAL_ID, &nativeVisualId);
-        if (nativeVisualId>0 && format == nativeVisualId) {
-            config = configs[i];
-            break;
-        }
-    }
-
-    free(configs);
-
-    if (i<n) {
-        *outConfig = config;
-        return NO_ERROR;
-    }
-
-    return NAME_NOT_FOUND;
-}
-
-status_t EGLUtils::selectConfigForNativeWindow(
-        EGLDisplay dpy,
-        EGLint const* attrs,
-        EGLNativeWindowType window,
-        EGLConfig* outConfig)
-{
-    int err;
-    int format;
-
-    if (!window)
-        return BAD_VALUE;
-
-    if ((err = window->query(window, NATIVE_WINDOW_FORMAT, &format)) < 0) {
-        return err;
-    }
-
-    return selectConfigForPixelFormat(dpy, attrs, format, outConfig);
-}
-
-// ----------------------------------------------------------------------------
-}; // namespace android
-// ----------------------------------------------------------------------------
-
-#endif /* ANDROID_UI_EGLUTILS_H */
diff --git a/opengl/tests/lib/Android.bp b/opengl/tests/lib/Android.bp
new file mode 100644
index 0000000..2f6095d
--- /dev/null
+++ b/opengl/tests/lib/Android.bp
@@ -0,0 +1,38 @@
+// 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.
+
+cc_library_static {
+
+    name: "libglTest",
+    srcs: [
+        "glTestLib.cpp",
+        "WindowSurface.cpp",
+    ],
+    export_include_dirs: ["include"],
+
+    cflags: [
+        "-DGL_GLEXT_PROTOTYPES",
+        "-DEGL_EGLEXT_PROTOTYPES",
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+
+    shared_libs: ["libgui"],
+    static_libs: [
+        "libarect",
+        "libtestUtil",
+    ],
+
+}
diff --git a/opengl/tests/lib/Android.mk b/opengl/tests/lib/Android.mk
deleted file mode 100644
index ea94bc1..0000000
--- a/opengl/tests/lib/Android.mk
+++ /dev/null
@@ -1,30 +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.
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_MODULE_TAGS := tests
-LOCAL_MODULE:= libglTest
-LOCAL_SRC_FILES:= glTestLib.cpp WindowSurface.cpp
-LOCAL_C_INCLUDES += system/extras/tests/include \
-	$(call include-path-for, opengl-tests-includes)
-
-LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES -Wall -Wextra -Werror
-
-LOCAL_SHARED_LIBRARIES += libgui
-LOCAL_STATIC_LIBRARIES := libarect
-
-include $(BUILD_STATIC_LIBRARY)
diff --git a/opengl/tests/include/WindowSurface.h b/opengl/tests/lib/include/WindowSurface.h
similarity index 100%
rename from opengl/tests/include/WindowSurface.h
rename to opengl/tests/lib/include/WindowSurface.h
diff --git a/opengl/tests/include/glTestLib.h b/opengl/tests/lib/include/glTestLib.h
similarity index 100%
rename from opengl/tests/include/glTestLib.h
rename to opengl/tests/lib/include/glTestLib.h
diff --git a/services/Android.bp b/services/Android.bp
deleted file mode 100644
index 7a8ee5d..0000000
--- a/services/Android.bp
+++ /dev/null
@@ -1 +0,0 @@
-subdirs = [ "*" ]
diff --git a/services/schedulerservice/Android.bp b/services/schedulerservice/Android.bp
index ca91b8e..0227164 100644
--- a/services/schedulerservice/Android.bp
+++ b/services/schedulerservice/Android.bp
@@ -3,6 +3,7 @@
     srcs: [
         "SchedulingPolicyService.cpp",
     ],
+    cflags: ["-Wall", "-Werror"],
     shared_libs: [
         "libhidlbase",
         "libhidltransport",
diff --git a/services/schedulerservice/SchedulingPolicyService.cpp b/services/schedulerservice/SchedulingPolicyService.cpp
index 1f6ed57..a1106cf 100644
--- a/services/schedulerservice/SchedulingPolicyService.cpp
+++ b/services/schedulerservice/SchedulingPolicyService.cpp
@@ -17,6 +17,8 @@
 
 #include "SchedulingPolicyService.h"
 
+#include <private/android_filesystem_config.h> // for AID_CAMERASERVER
+
 #include <log/log.h>
 #include <hwbinder/IPCThreadState.h>
 #include <mediautils/SchedulingPolicyService.h>
@@ -28,8 +30,9 @@
 namespace implementation {
 
 bool SchedulingPolicyService::isAllowed() {
-    // TODO(b/37291237)
-    return true;
+    using ::android::hardware::IPCThreadState;
+
+    return IPCThreadState::self()->getCallingUid() == AID_CAMERASERVER;
 }
 
 Return<bool> SchedulingPolicyService::requestPriority(int32_t pid, int32_t tid, int32_t priority) {
diff --git a/services/sensorservice/Android.bp b/services/sensorservice/Android.bp
index 8d381b1..a7f3a52 100644
--- a/services/sensorservice/Android.bp
+++ b/services/sensorservice/Android.bp
@@ -14,6 +14,7 @@
         "RecentEventLogger.cpp",
         "RotationVectorSensor.cpp",
         "SensorDevice.cpp",
+        "SensorDeviceUtils.cpp",
         "SensorDirectConnection.cpp",
         "SensorEventConnection.cpp",
         "SensorFusion.cpp",
diff --git a/services/sensorservice/SensorDevice.cpp b/services/sensorservice/SensorDevice.cpp
index da3b275..fdb69d3 100644
--- a/services/sensorservice/SensorDevice.cpp
+++ b/services/sensorservice/SensorDevice.cpp
@@ -26,11 +26,10 @@
 #include <cinttypes>
 #include <thread>
 
-using android::hardware::hidl_vec;
-
 using namespace android::hardware::sensors::V1_0;
 using namespace android::hardware::sensors::V1_0::implementation;
-
+using android::hardware::hidl_vec;
+using android::SensorDeviceUtils::HidlServiceRegistrationWaiter;
 
 namespace android {
 // ---------------------------------------------------------------------------
@@ -52,7 +51,8 @@
     }
 }
 
-SensorDevice::SensorDevice() : mHidlTransportErrors(20) {
+SensorDevice::SensorDevice()
+        : mHidlTransportErrors(20), mRestartWaiter(new HidlServiceRegistrationWaiter()) {
     if (!connectHidlService()) {
         return;
     }
@@ -87,35 +87,29 @@
 }
 
 bool SensorDevice::connectHidlService() {
-    // SensorDevice may wait upto 100ms * 10 = 1s for hidl service.
-    constexpr auto RETRY_DELAY = std::chrono::milliseconds(100);
+    // SensorDevice will wait for HAL service to start if HAL is declared in device manifest.
     size_t retry = 10;
 
-    while (true) {
-        int initStep = 0;
+    while (retry-- > 0) {
         mSensors = ISensors::getService();
-        if (mSensors != nullptr) {
-            ++initStep;
-            // Poke ISensor service. If it has lingering connection from previous generation of
-            // system server, it will kill itself. There is no intention to handle the poll result,
-            // which will be done since the size is 0.
-            if(mSensors->poll(0, [](auto, const auto &, const auto &) {}).isOk()) {
-                // ok to continue
-                break;
-            }
-            // hidl service is restarting, pointer is invalid.
-            mSensors = nullptr;
-        }
-
-        if (--retry <= 0) {
-            ALOGE("Cannot connect to ISensors hidl service!");
+        if (mSensors == nullptr) {
+            // no sensor hidl service found
             break;
         }
-        // Delay 100ms before retry, hidl service is expected to come up in short time after
-        // crash.
-        ALOGI("%s unsuccessful, try again soon (remaining retry %zu).",
-                (initStep == 0) ? "getService()" : "poll() check", retry);
-        std::this_thread::sleep_for(RETRY_DELAY);
+
+        mRestartWaiter->reset();
+        // Poke ISensor service. If it has lingering connection from previous generation of
+        // system server, it will kill itself. There is no intention to handle the poll result,
+        // which will be done since the size is 0.
+        if(mSensors->poll(0, [](auto, const auto &, const auto &) {}).isOk()) {
+            // ok to continue
+            break;
+        }
+
+        // hidl service is restarting, pointer is invalid.
+        mSensors = nullptr;
+        ALOGI("%s unsuccessful, remaining retry %zu.", __FUNCTION__, retry);
+        mRestartWaiter->wait();
     }
     return (mSensors != nullptr);
 }
@@ -173,7 +167,7 @@
 }
 
 status_t SensorDevice::initCheck() const {
-    return mSensors != NULL ? NO_ERROR : NO_INIT;
+    return mSensors != nullptr ? NO_ERROR : NO_INIT;
 }
 
 ssize_t SensorDevice::poll(sensors_event_t* buffer, size_t count) {
diff --git a/services/sensorservice/SensorDevice.h b/services/sensorservice/SensorDevice.h
index fd6cee6..6d75051 100644
--- a/services/sensorservice/SensorDevice.h
+++ b/services/sensorservice/SensorDevice.h
@@ -17,6 +17,7 @@
 #ifndef ANDROID_SENSOR_DEVICE_H
 #define ANDROID_SENSOR_DEVICE_H
 
+#include "SensorDeviceUtils.h"
 #include "SensorServiceUtils.h"
 
 #include <sensor/Sensor.h>
@@ -39,12 +40,9 @@
 namespace android {
 
 // ---------------------------------------------------------------------------
-using SensorServiceUtil::Dumpable;
-using hardware::Return;
 
-class SensorDevice : public Singleton<SensorDevice>, public Dumpable {
+class SensorDevice : public Singleton<SensorDevice>, public SensorServiceUtil::Dumpable {
 public:
-
     class HidlTransportErrorLog {
      public:
 
@@ -105,7 +103,7 @@
 private:
     friend class Singleton<SensorDevice>;
 
-    sp<android::hardware::sensors::V1_0::ISensors> mSensors;
+    sp<hardware::sensors::V1_0::ISensors> mSensors;
     Vector<sensor_t> mSensorList;
     std::unordered_map<int32_t, sensor_t*> mConnectedDynamicSensors;
 
@@ -174,6 +172,8 @@
         }
         return std::move(ret);
     }
+    //TODO(b/67425500): remove waiter after bug is resolved.
+    sp<SensorDeviceUtils::HidlServiceRegistrationWaiter> mRestartWaiter;
 
     bool isClientDisabled(void* ident);
     bool isClientDisabledLocked(void* ident);
diff --git a/services/sensorservice/SensorDeviceUtils.cpp b/services/sensorservice/SensorDeviceUtils.cpp
new file mode 100644
index 0000000..b1344be
--- /dev/null
+++ b/services/sensorservice/SensorDeviceUtils.cpp
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2017 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 "SensorDeviceUtils.h"
+
+#include <android/hardware/sensors/1.0/ISensors.h>
+#include <utils/Log.h>
+
+#include <chrono>
+#include <thread>
+
+using ::android::hardware::Void;
+using namespace android::hardware::sensors::V1_0;
+
+namespace android {
+namespace SensorDeviceUtils {
+
+HidlServiceRegistrationWaiter::HidlServiceRegistrationWaiter()
+        : mRegistered(ISensors::registerForNotifications("default", this)) {
+}
+
+Return<void> HidlServiceRegistrationWaiter::onRegistration(
+        const hidl_string &fqName, const hidl_string &name, bool preexisting) {
+    ALOGV("onRegistration fqName %s, name %s, preexisting %d",
+          fqName.c_str(), name.c_str(), preexisting);
+
+    {
+        std::lock_guard<std::mutex> lk(mLock);
+        mRestartObserved = true;
+    }
+    mCondition.notify_all();
+    return Void();
+}
+
+void HidlServiceRegistrationWaiter::reset() {
+    std::lock_guard<std::mutex> lk(mLock);
+    mRestartObserved = false;
+}
+
+bool HidlServiceRegistrationWaiter::wait() {
+    constexpr int DEFAULT_WAIT_MS = 100;
+    constexpr int TIMEOUT_MS = 1000;
+
+    if (!mRegistered) {
+        ALOGW("Cannot register service notification, use default wait(%d ms)", DEFAULT_WAIT_MS);
+        std::this_thread::sleep_for(std::chrono::milliseconds(DEFAULT_WAIT_MS));
+        // not sure if service is actually restarted
+        return false;
+    }
+
+    std::unique_lock<std::mutex> lk(mLock);
+    return mCondition.wait_for(lk, std::chrono::milliseconds(TIMEOUT_MS),
+            [this]{return mRestartObserved;});
+}
+
+} // namespace SensorDeviceUtils
+} // namespace android
diff --git a/services/sensorservice/SensorDeviceUtils.h b/services/sensorservice/SensorDeviceUtils.h
new file mode 100644
index 0000000..da36928
--- /dev/null
+++ b/services/sensorservice/SensorDeviceUtils.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 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 ANDROID_SENSOR_DEVICE_UTIL
+#define ANDROID_SENSOR_DEVICE_UTIL
+
+#include <android/hidl/manager/1.0/IServiceNotification.h>
+
+#include <condition_variable>
+#include <thread>
+
+using ::android::hardware::hidl_string;
+using ::android::hardware::Return;
+using ::android::hidl::manager::V1_0::IServiceNotification;
+
+namespace android {
+namespace SensorDeviceUtils {
+
+class HidlServiceRegistrationWaiter : public IServiceNotification {
+public:
+
+    HidlServiceRegistrationWaiter();
+
+    Return<void> onRegistration(const hidl_string &fqName,
+                                const hidl_string &name,
+                                bool preexisting) override;
+
+    void reset();
+
+    /**
+     * Wait for service restart
+     *
+     * @return true if service is restart since last reset(); false otherwise.
+     */
+    bool wait();
+private:
+    const bool mRegistered;
+
+    std::mutex mLock;
+    std::condition_variable mCondition;
+    bool mRestartObserved;
+};
+
+} // namespace SensorDeviceUtils
+} // namespace android;
+
+#endif // ANDROID_SENSOR_SERVICE_UTIL