diff --git a/include/gui/Sensor.h b/include/gui/Sensor.h
index 28a08e223..59b4d4dd6 100644
--- a/include/gui/Sensor.h
+++ b/include/gui/Sensor.h
@@ -98,7 +98,7 @@ private:
     String8 mStringType;
     String8 mRequiredPermission;
     int32_t mMaxDelay;
-    int32_t mFlags;
+    uint32_t mFlags;
     static void flattenString8(void*& buffer, size_t& size, const String8& string8);
     static bool unflattenString8(void const*& buffer, size_t& size, String8& outputString8);
 };
diff --git a/include/ui/FramebufferNativeWindow.h b/include/ui/FramebufferNativeWindow.h
index 5cd8101d3..6b66d5f66 100644
--- a/include/ui/FramebufferNativeWindow.h
+++ b/include/ui/FramebufferNativeWindow.h
@@ -14,11 +14,13 @@
  * limitations under the License.
  */
 
+#ifndef INCLUDED_FROM_FRAMEBUFFER_NATIVE_WINDOW_CPP
+#warning "FramebufferNativeWindow is deprecated"
+#endif
+
 #ifndef ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
 #define ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
 
-#warning "FramebufferNativeWindow is deprecated"
-
 #include <stdint.h>
 #include <sys/types.h>
 
diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
index 7630faa76..4e79ee43b 100644
--- a/include/ui/GraphicBuffer.h
+++ b/include/ui/GraphicBuffer.h
@@ -72,11 +72,11 @@ public:
     GraphicBuffer();
 
     // creates w * h buffer
-    GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage);
+    GraphicBuffer(int w, int h, PixelFormat format, int usage);
 
     // create a buffer from an existing handle
-    GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage,
-            uint32_t stride, native_handle_t* handle, bool keepOwnership);
+    GraphicBuffer(int w, int h, PixelFormat format, int usage,
+            int stride, native_handle_t* handle, bool keepOwnership);
 
     // create a buffer from an existing ANativeWindowBuffer
     GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership);
@@ -84,15 +84,15 @@ public:
     // return status
     status_t initCheck() const;
 
-    uint32_t getWidth() const           { return width; }
-    uint32_t getHeight() const          { return height; }
-    uint32_t getStride() const          { return stride; }
-    uint32_t getUsage() const           { return usage; }
+    int getWidth() const                { return width; }
+    int getHeight() const               { return height; }
+    int getStride() const               { return stride; }
+    int getUsage() const                { return usage; }
     PixelFormat getPixelFormat() const  { return format; }
     Rect getBounds() const              { return Rect(width, height); }
     uint64_t getId() const              { return mId; }
 
-    status_t reallocate(uint32_t w, uint32_t h, PixelFormat f, uint32_t usage);
+    status_t reallocate(int w, int h, PixelFormat f, int usage);
 
     status_t lock(uint32_t usage, void** vaddr);
     status_t lock(uint32_t usage, const Rect& rect, void** vaddr);
diff --git a/libs/gui/Android.mk b/libs/gui/Android.mk
index ca94aa399..fffe28af1 100644
--- a/libs/gui/Android.mk
+++ b/libs/gui/Android.mk
@@ -1,7 +1,10 @@
-LOCAL_PATH:= $(call my-dir)
+LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= \
+LOCAL_CLANG := true
+LOCAL_CPPFLAGS := -std=c++11
+
+LOCAL_SRC_FILES := \
 	IGraphicBufferConsumer.cpp \
 	IConsumerListener.cpp \
 	BitTube.cpp \
@@ -47,7 +50,7 @@ LOCAL_SHARED_LIBRARIES := \
 	liblog
 
 
-LOCAL_MODULE:= libgui
+LOCAL_MODULE := libgui
 
 ifeq ($(TARGET_BOARD_PLATFORM), tegra)
 	LOCAL_CFLAGS += -DDONT_USE_FENCE_SYNC
diff --git a/libs/gui/SensorEventQueue.cpp b/libs/gui/SensorEventQueue.cpp
index 1305e9f63..6f5f204fe 100644
--- a/libs/gui/SensorEventQueue.cpp
+++ b/libs/gui/SensorEventQueue.cpp
@@ -157,7 +157,7 @@ void SensorEventQueue::sendAck(const ASensorEvent* events, int count) {
         ssize_t size = ::send(mSensorChannel->getFd(), &mNumAcksToSend, sizeof(mNumAcksToSend),
                 MSG_DONTWAIT | MSG_NOSIGNAL);
         if (size < 0) {
-            ALOGE("sendAck failure %d %d", size, mNumAcksToSend);
+            ALOGE("sendAck failure %zd %d", size, mNumAcksToSend);
         } else {
             mNumAcksToSend = 0;
         }
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 6446926ea..547dc7ddd 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -752,14 +752,14 @@ status_t ScreenshotClient::update(const sp<IBinder>& display,
 
 status_t ScreenshotClient::update(const sp<IBinder>& display, Rect sourceCrop,
         bool useIdentityTransform) {
-    return ScreenshotClient::update(display, sourceCrop, 0, 0, 0, -1UL,
+    return ScreenshotClient::update(display, sourceCrop, 0, 0, 0, -1U,
             useIdentityTransform, ISurfaceComposer::eRotateNone);
 }
 
 status_t ScreenshotClient::update(const sp<IBinder>& display, Rect sourceCrop,
         uint32_t reqWidth, uint32_t reqHeight, bool useIdentityTransform) {
     return ScreenshotClient::update(display, sourceCrop, reqWidth, reqHeight,
-            0, -1UL, useIdentityTransform, ISurfaceComposer::eRotateNone);
+            0, -1U, useIdentityTransform, ISurfaceComposer::eRotateNone);
 }
 
 void ScreenshotClient::release() {
diff --git a/libs/ui/Android.mk b/libs/ui/Android.mk
index eec97be0c..eff540ad4 100644
--- a/libs/ui/Android.mk
+++ b/libs/ui/Android.mk
@@ -12,10 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-LOCAL_PATH:= $(call my-dir)
+LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= \
+LOCAL_CLANG := true
+LOCAL_CPPFLAGS := -std=c++11
+
+LOCAL_SRC_FILES := \
 	Fence.cpp \
 	FramebufferNativeWindow.cpp \
 	FrameStats.cpp \
@@ -38,7 +41,7 @@ ifneq ($(BOARD_FRAMEBUFFER_FORCE_FORMAT),)
 LOCAL_CFLAGS += -DFRAMEBUFFER_FORCE_FORMAT=$(BOARD_FRAMEBUFFER_FORCE_FORMAT)
 endif
 
-LOCAL_MODULE:= libui
+LOCAL_MODULE := libui
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/libs/ui/FramebufferNativeWindow.cpp b/libs/ui/FramebufferNativeWindow.cpp
index 918f2e756..295300e3f 100644
--- a/libs/ui/FramebufferNativeWindow.cpp
+++ b/libs/ui/FramebufferNativeWindow.cpp
@@ -29,7 +29,9 @@
 
 #include <ui/ANativeObjectBase.h>
 #include <ui/Fence.h>
+#define INCLUDED_FROM_FRAMEBUFFER_NATIVE_WINDOW_CPP
 #include <ui/FramebufferNativeWindow.h>
+#undef INCLUDED_FROM_FRAMEBUFFER_NATIVE_WINDOW_CPP
 #include <ui/Rect.h>
 
 #include <EGL/egl.h>
diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index e768f13cf..f4e781b55 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -45,31 +45,29 @@ GraphicBuffer::GraphicBuffer()
     : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()),
       mInitCheck(NO_ERROR), mId(getUniqueId())
 {
-    width  = 
-    height = 
-    stride = 
-    format = 
+    width  =
+    height =
+    stride =
+    format =
     usage  = 0;
     handle = NULL;
 }
 
-GraphicBuffer::GraphicBuffer(uint32_t w, uint32_t h, 
-        PixelFormat reqFormat, uint32_t reqUsage)
+GraphicBuffer::GraphicBuffer(int w, int h, PixelFormat reqFormat, int reqUsage)
     : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()),
       mInitCheck(NO_ERROR), mId(getUniqueId())
 {
-    width  = 
-    height = 
-    stride = 
-    format = 
+    width  =
+    height =
+    stride =
+    format =
     usage  = 0;
     handle = NULL;
     mInitCheck = initSize(w, h, reqFormat, reqUsage);
 }
 
-GraphicBuffer::GraphicBuffer(uint32_t w, uint32_t h,
-        PixelFormat inFormat, uint32_t inUsage,
-        uint32_t inStride, native_handle_t* inHandle, bool keepOwnership)
+GraphicBuffer::GraphicBuffer(int w, int h, PixelFormat inFormat, int inUsage,
+        int inStride, native_handle_t* inHandle, bool keepOwnership)
     : BASE(), mOwner(keepOwnership ? ownHandle : ownNone),
       mBufferMapper(GraphicBufferMapper::get()),
       mInitCheck(NO_ERROR), mId(getUniqueId())
@@ -131,8 +129,7 @@ ANativeWindowBuffer* GraphicBuffer::getNativeBuffer() const
             const_cast<GraphicBuffer*>(this));
 }
 
-status_t GraphicBuffer::reallocate(uint32_t w, uint32_t h, PixelFormat f,
-        uint32_t reqUsage)
+status_t GraphicBuffer::reallocate(int w, int h, PixelFormat f, int reqUsage)
 {
     if (mOwner != ownData)
         return INVALID_OPERATION;
@@ -171,10 +168,10 @@ status_t GraphicBuffer::lock(uint32_t usage, void** vaddr)
 
 status_t GraphicBuffer::lock(uint32_t usage, const Rect& rect, void** vaddr)
 {
-    if (rect.left < 0 || rect.right  > this->width || 
+    if (rect.left < 0 || rect.right  > this->width ||
         rect.top  < 0 || rect.bottom > this->height) {
         ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)",
-                rect.left, rect.top, rect.right, rect.bottom, 
+                rect.left, rect.top, rect.right, rect.bottom,
                 this->width, this->height);
         return BAD_VALUE;
     }
@@ -314,7 +311,7 @@ status_t GraphicBuffer::unflatten(
     if (numFds >= maxNumber || numInts >= (maxNumber - 10)) {
         width = height = stride = format = usage = 0;
         handle = NULL;
-        ALOGE("unflatten: numFds or numInts is too large: %d, %d",
+        ALOGE("unflatten: numFds or numInts is too large: %zd, %zd",
                 numFds, numInts);
         return BAD_VALUE;
     }
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index eade2e221..44a06c66d 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -1,10 +1,10 @@
-LOCAL_PATH:= $(call my-dir)
+LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
 LOCAL_CLANG := true
 
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-LOCAL_SRC_FILES:= \
+LOCAL_SRC_FILES := \
     Client.cpp \
     DisplayDevice.cpp \
     DispSync.cpp \
@@ -37,7 +37,7 @@ LOCAL_SRC_FILES:= \
     RenderEngine/GLES20RenderEngine.cpp
 
 
-LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\"
+LOCAL_CFLAGS := -DLOG_TAG=\"SurfaceFlinger\"
 LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
 
 ifeq ($(TARGET_BOARD_PLATFORM),omap4)
@@ -90,7 +90,7 @@ else
 endif
 
 LOCAL_CFLAGS += -fvisibility=hidden -Werror=format
-LOCAL_CFLAGS += -std=c++11
+LOCAL_CPPFLAGS := -std=c++11
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
@@ -106,7 +106,7 @@ LOCAL_SHARED_LIBRARIES := \
 	libgui \
 	libpowermanager
 
-LOCAL_MODULE:= libsurfaceflinger
+LOCAL_MODULE := libsurfaceflinger
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -114,11 +114,13 @@ include $(BUILD_SHARED_LIBRARY)
 # build surfaceflinger's executable
 include $(CLEAR_VARS)
 
-LOCAL_LDFLAGS := -Wl,--version-script,art/sigchainlib/version-script.txt -Wl,--export-dynamic
-LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\"
-LOCAL_CPPFLAGS:= -std=c++11
+LOCAL_CLANG := true
 
-LOCAL_SRC_FILES:= \
+LOCAL_LDFLAGS := -Wl,--version-script,art/sigchainlib/version-script.txt -Wl,--export-dynamic
+LOCAL_CFLAGS := -DLOG_TAG=\"SurfaceFlinger\"
+LOCAL_CPPFLAGS := -std=c++11
+
+LOCAL_SRC_FILES := \
 	main_surfaceflinger.cpp
 
 LOCAL_SHARED_LIBRARIES := \
@@ -131,7 +133,7 @@ LOCAL_SHARED_LIBRARIES := \
 
 LOCAL_WHOLE_STATIC_LIBRARIES := libsigchain
 
-LOCAL_MODULE:= surfaceflinger
+LOCAL_MODULE := surfaceflinger
 
 ifdef TARGET_32_BIT_SURFACEFLINGER
 LOCAL_32_BIT_ONLY := true
@@ -143,9 +145,13 @@ include $(BUILD_EXECUTABLE)
 # uses jni which may not be available in PDK
 ifneq ($(wildcard libnativehelper/include),)
 include $(CLEAR_VARS)
-LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\"
 
-LOCAL_SRC_FILES:= \
+LOCAL_CLANG := true
+
+LOCAL_CFLAGS := -DLOG_TAG=\"SurfaceFlinger\"
+LOCAL_CPPFLAGS := -std=c++11
+
+LOCAL_SRC_FILES := \
     DdmConnection.cpp
 
 LOCAL_SHARED_LIBRARIES := \
@@ -153,7 +159,7 @@ LOCAL_SHARED_LIBRARIES := \
 	liblog \
 	libdl
 
-LOCAL_MODULE:= libsurfaceflinger_ddmconnection
+LOCAL_MODULE := libsurfaceflinger_ddmconnection
 
 include $(BUILD_SHARED_LIBRARY)
 endif # libnativehelper
diff --git a/services/surfaceflinger/DdmConnection.cpp b/services/surfaceflinger/DdmConnection.cpp
index 2477921e3..659c2c8e4 100644
--- a/services/surfaceflinger/DdmConnection.cpp
+++ b/services/surfaceflinger/DdmConnection.cpp
@@ -59,12 +59,14 @@ void DdmConnection::start(const char* name) {
     }
 
     jint (*JNI_CreateJavaVM)(JavaVM** p_vm, JNIEnv** p_env, void* vm_args);
-    JNI_CreateJavaVM = (typeof JNI_CreateJavaVM)dlsym(libart_dso, "JNI_CreateJavaVM");
+    JNI_CreateJavaVM = reinterpret_cast<decltype(JNI_CreateJavaVM)>(
+            dlsym(libart_dso, "JNI_CreateJavaVM"));
     ALOGE_IF(!JNI_CreateJavaVM, "DdmConnection: %s", dlerror());
 
     jint (*registerNatives)(JNIEnv* env, jclass clazz);
-    registerNatives = (typeof registerNatives)dlsym(libandroid_runtime_dso,
-        "Java_com_android_internal_util_WithFramework_registerNatives");
+    registerNatives = reinterpret_cast<decltype(registerNatives)>(
+            dlsym(libandroid_runtime_dso,
+                "Java_com_android_internal_util_WithFramework_registerNatives"));
     ALOGE_IF(!registerNatives, "DdmConnection: %s", dlerror());
 
     if (!JNI_CreateJavaVM || !registerNatives) {
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 564f9748e..9a03e6f29 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -511,6 +511,6 @@ void DisplayDevice::dump(String8& result) const {
         tr[0][2], tr[1][2], tr[2][2]);
 
     String8 surfaceDump;
-    mDisplaySurface->dump(surfaceDump);
+    mDisplaySurface->dumpAsString(surfaceDump);
     result.append(surfaceDump);
 }
diff --git a/services/surfaceflinger/DisplayHardware/DisplaySurface.h b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
index e60c4fb7b..2f743c190 100644
--- a/services/surfaceflinger/DisplayHardware/DisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
@@ -70,7 +70,7 @@ public:
     // frame's buffer.
     virtual void onFrameCommitted() = 0;
 
-    virtual void dump(String8& result) const = 0;
+    virtual void dumpAsString(String8& result) const = 0;
 
     virtual void resizeBuffers(const uint32_t w, const uint32_t h) = 0;
 
diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
index 22d3cecbf..4885c5fc4 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
@@ -160,23 +160,7 @@ status_t FramebufferSurface::compositionComplete()
     return mHwc.fbCompositionComplete();
 }
 
-// Since DisplaySurface and ConsumerBase both have a method with this
-// signature, results will vary based on the static pointer type the caller is
-// using:
-//   void dump(FrameBufferSurface* fbs, String8& s) {
-//       // calls FramebufferSurface::dump()
-//       fbs->dump(s);
-//
-//       // calls ConsumerBase::dump() since it is non-virtual
-//       static_cast<ConsumerBase*>(fbs)->dump(s);
-//
-//       // calls FramebufferSurface::dump() since it is virtual
-//       static_cast<DisplaySurface*>(fbs)->dump(s);
-//   }
-// To make sure that all of these end up doing the same thing, we just redirect
-// to ConsumerBase::dump() here. It will take the internal lock, and then call
-// virtual dumpLocked(), which is where the real work happens.
-void FramebufferSurface::dump(String8& result) const {
+void FramebufferSurface::dumpAsString(String8& result) const {
     ConsumerBase::dump(result);
 }
 
diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
index 8605862e5..3d1784086 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
@@ -44,10 +44,7 @@ public:
     virtual status_t compositionComplete();
     virtual status_t advanceFrame();
     virtual void onFrameCommitted();
-
-    // Implementation of DisplaySurface::dump(). Note that ConsumerBase also
-    // has a non-virtual dump() with the same signature.
-    virtual void dump(String8& result) const;
+    virtual void dumpAsString(String8& result) const;
 
     // Cannot resize a buffers in a FramebufferSurface. Only works with virtual
     // displays.
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index c3d45ee09..e0f32e99a 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -254,7 +254,7 @@ void VirtualDisplaySurface::onFrameCommitted() {
     resetPerFrameState();
 }
 
-void VirtualDisplaySurface::dump(String8& /* result */) const {
+void VirtualDisplaySurface::dumpAsString(String8& /* result */) const {
 }
 
 void VirtualDisplaySurface::resizeBuffers(const uint32_t w, const uint32_t h) {
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
index 363dce206..2c14d6d4b 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
@@ -86,7 +86,7 @@ public:
     virtual status_t compositionComplete();
     virtual status_t advanceFrame();
     virtual void onFrameCommitted();
-    virtual void dump(String8& result) const;
+    virtual void dumpAsString(String8& result) const;
     virtual void resizeBuffers(const uint32_t w, const uint32_t h);
 
 private:
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 77fc3474b..43a69dfb9 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -607,7 +607,7 @@ status_t SurfaceFlinger::getDisplayConfigs(const sp<IBinder>& display,
     return NO_ERROR;
 }
 
-status_t SurfaceFlinger::getDisplayStats(const sp<IBinder>& display,
+status_t SurfaceFlinger::getDisplayStats(const sp<IBinder>& /* display */,
         DisplayStatInfo* stats) {
     if (stats == NULL) {
         return BAD_VALUE;