Merge "Fix for native bridge fallback in egl layers" am: a0a5ed3bdb am: cdb8facd6c (1256e378) · Commits · e / os / android_frameworks_native-old

opengl/libs/EGL/egl_layers.cpp

+8 −12

Original line number	Diff line number	Diff line
		@@ -379,14 +379,12 @@ void LayerLoader::LoadLayers() {
		// any symbol dependencies will be resolved by system libraries. They
		// can't safely use libc++_shared, for example. Which is one reason
		// (among several) we only allow them in non-user builds.
		void* handle = nullptr;
		auto app_namespace = android::GraphicsEnv::getInstance().getAppNamespace();
		if (app_namespace && !android::base::StartsWith(layer, kSystemLayerLibraryDir)) {
		bool native_bridge = false;
		char* error_message = nullptr;
		handle = OpenNativeLibraryInNamespace(
		app_namespace, layer.c_str(), &native_bridge, &error_message);
		if (!handle) {
		dlhandle_ = OpenNativeLibraryInNamespace(
		app_namespace, layer.c_str(), &native_bridge_, &error_message);
		if (!dlhandle_) {
		ALOGE("Failed to load layer %s with error: %s", layer.c_str(),
		error_message);
		android::NativeLoaderFreeErrorMessage(error_message);
		@@ -394,11 +392,11 @@ void LayerLoader::LoadLayers() {
		}

		} else {
		handle = dlopen(layer.c_str(), RTLD_NOW \| RTLD_LOCAL);
		dlhandle_ = dlopen(layer.c_str(), RTLD_NOW \| RTLD_LOCAL);
		}

		if (handle) {
		ALOGV("Loaded layer handle (%llu) for layer %s", (unsigned long long)handle,
		if (dlhandle_) {
		ALOGV("Loaded layer handle (%llu) for layer %s", (unsigned long long)dlhandle_,
		layers[i].c_str());
		} else {
		// If the layer is found but can't be loaded, try setenforce 0
		@@ -411,8 +409,7 @@ void LayerLoader::LoadLayers() {
		std::string init_func = "AndroidGLESLayer_Initialize";
		ALOGV("Looking for entrypoint %s", init_func.c_str());

		layer_init_func LayerInit =
		reinterpret_cast<layer_init_func>(dlsym(handle, init_func.c_str()));
		layer_init_func LayerInit = GetTrampoline<layer_init_func>(init_func.c_str());
		if (LayerInit) {
		ALOGV("Found %s for layer %s", init_func.c_str(), layer.c_str());
		layer_init_.push_back(LayerInit);
		@@ -425,8 +422,7 @@ void LayerLoader::LoadLayers() {
		std::string setup_func = "AndroidGLESLayer_GetProcAddress";
		ALOGV("Looking for entrypoint %s", setup_func.c_str());

		layer_setup_func LayerSetup =
		reinterpret_cast<layer_setup_func>(dlsym(handle, setup_func.c_str()));
		layer_setup_func LayerSetup = GetTrampoline<layer_setup_func>(setup_func.c_str());
		if (LayerSetup) {
		ALOGV("Found %s for layer %s", setup_func.c_str(), layer.c_str());
		layer_setup_.push_back(LayerSetup);

opengl/libs/EGL/egl_layers.h

+18 −2

Original line number	Diff line number	Diff line
		@@ -21,10 +21,15 @@
		#include <unordered_map>
		#include <vector>

		#include <EGL/egldefs.h>
		#include <android/dlext.h>
		#include <dlfcn.h>

		#include <EGL/egldefs.h>
		#include "egl_platform_entries.h"

		#include <nativebridge/native_bridge.h>
		#include <nativeloader/native_loader.h>

		typedef __eglMustCastToProperFunctionPointerType EGLFuncPointer;

		namespace android {
		@@ -54,10 +59,21 @@ public:
		std::vector<layer_setup_func> layer_setup_;

		private:
		LayerLoader() : layers_loaded_(false), initialized_(false), current_layer_(0){};
		LayerLoader() : layers_loaded_(false), initialized_(false), current_layer_(0), dlhandle_(nullptr), native_bridge_(false){};
		bool layers_loaded_;
		bool initialized_;
		unsigned current_layer_;
		void* dlhandle_;
		bool native_bridge_;

		template<typename Func = void*>
		Func GetTrampoline(const char* name) const {
		if (native_bridge_) {
		return reinterpret_cast<Func>(android::NativeBridgeGetTrampoline(
		dlhandle_, name, nullptr, 0));
		}
		return reinterpret_cast<Func>(dlsym(dlhandle_, name));
		}
		};

		}; // namespace android