| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/android/library_loader/library_loader_hooks.h" |
| |
| #include "base/at_exit.h" |
| #include "base/metrics/histogram.h" |
| #include "jni/LibraryLoader_jni.h" |
| |
| namespace base { |
| namespace android { |
| |
| namespace { |
| |
| base::AtExitManager* g_at_exit_manager = NULL; |
| const char* g_library_version_number = ""; |
| LibraryLoadedHook* g_registration_callback = NULL; |
| |
| } // namespace |
| |
| void SetLibraryLoadedHook(LibraryLoadedHook* func) { |
| g_registration_callback = func; |
| } |
| |
| static jboolean LibraryLoaded(JNIEnv* env, jclass clazz, |
| jobjectArray init_command_line) { |
| if(g_registration_callback == NULL) { |
| return true; |
| } |
| return g_registration_callback(env, clazz, init_command_line); |
| } |
| |
| static void RecordChromiumAndroidLinkerHistogram( |
| JNIEnv* env, |
| jclass clazz, |
| jboolean loaded_at_fixed_address_failed, |
| jboolean is_low_memory_device) { |
| UMA_HISTOGRAM_BOOLEAN("ChromiumAndroidLinker.LoadedAtFixedAddressFailed", |
| loaded_at_fixed_address_failed); |
| UMA_HISTOGRAM_BOOLEAN("ChromiumAndroidLinker.IsLowMemoryDevice", |
| is_low_memory_device); |
| } |
| |
| void LibraryLoaderExitHook() { |
| if (g_at_exit_manager) { |
| delete g_at_exit_manager; |
| g_at_exit_manager = NULL; |
| } |
| } |
| |
| bool RegisterLibraryLoaderEntryHook(JNIEnv* env) { |
| // We need the AtExitManager to be created at the very beginning. |
| g_at_exit_manager = new base::AtExitManager(); |
| |
| return RegisterNativesImpl(env); |
| } |
| |
| void SetVersionNumber(const char* version_number) { |
| g_library_version_number = strdup(version_number); |
| } |
| |
| jstring GetVersionNumber(JNIEnv* env, jclass clazz) { |
| return env->NewStringUTF(g_library_version_number); |
| } |
| |
| } // namespace android |
| } // namespace base |