| // Copyright (c) 2012 Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "client/linux/log/log.h" |
| |
| #if defined(__ANDROID__) |
| #include <android/log.h> |
| #include <dlfcn.h> |
| #else |
| #include "third_party/lss/linux_syscall_support.h" |
| #endif |
| |
| namespace logger { |
| |
| #if defined(__ANDROID__) |
| namespace { |
| |
| // __android_log_buf_write() is not exported in the NDK and is being used by |
| // dynamic runtime linking. Its declaration is taken from Android's |
| // system/core/include/log/log.h. |
| using AndroidLogBufferWriteFunc = int (*)(int bufID, int prio, const char* tag, |
| const char* text); |
| const int kAndroidCrashLogId = 4; // From LOG_ID_CRASH in log.h. |
| const char kAndroidLogTag[] = "google-breakpad"; |
| |
| bool g_crash_log_initialized = false; |
| AndroidLogBufferWriteFunc g_android_log_buf_write = nullptr; |
| |
| } // namespace |
| |
| void initializeCrashLogWriter() { |
| if (g_crash_log_initialized) |
| return; |
| g_android_log_buf_write = reinterpret_cast<AndroidLogBufferWriteFunc>( |
| dlsym(RTLD_DEFAULT, "__android_log_buf_write")); |
| g_crash_log_initialized = true; |
| } |
| |
| int writeToCrashLog(const char* buf) { |
| // Try writing to the crash log ring buffer. If not available, fall back to |
| // the standard log buffer. |
| if (g_android_log_buf_write) { |
| return g_android_log_buf_write(kAndroidCrashLogId, ANDROID_LOG_FATAL, |
| kAndroidLogTag, buf); |
| } |
| return __android_log_write(ANDROID_LOG_FATAL, kAndroidLogTag, buf); |
| } |
| #endif |
| |
| int write(const char* buf, size_t nbytes) { |
| #if defined(__ANDROID__) |
| return __android_log_write(ANDROID_LOG_WARN, kAndroidLogTag, buf); |
| #else |
| return sys_write(2, buf, nbytes); |
| #endif |
| } |
| |
| } // namespace logger |