ebf43ad2d8
1) Rename __android_logger_data to __android_log_message and rename __android_log_write_logger_data to __android_log_write_log_message. Move the const char* message argument into __android_log_message. 2) Add @param, @return, and "Available since API level 30." to the documentation of new functions. 3) Document that the user defined aborter should but may not abort. 4) Document the line separation is the responsibility of the log function provided to __android_log_set_logger(). Bug: 150898477 Test: build, liblog and libbase unit tests Change-Id: I07c41011ef25b3e7cc4943f3f1e240a2f6aa2802
89 lines
3 KiB
C++
89 lines
3 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "liblog_symbols.h"
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#if defined(__ANDROID_SDK_VERSION__) && (__ANDROID_SDK_VERSION__ <= 29)
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#define USE_DLSYM
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#endif
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#ifdef USE_DLSYM
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#include <dlfcn.h>
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#endif
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namespace android {
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namespace base {
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#ifdef USE_DLSYM
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const std::optional<LibLogFunctions>& GetLibLogFunctions() {
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static std::optional<LibLogFunctions> liblog_functions = []() -> std::optional<LibLogFunctions> {
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void* liblog_handle = dlopen("liblog.so", RTLD_NOW);
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if (liblog_handle == nullptr) {
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return {};
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}
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LibLogFunctions real_liblog_functions = {};
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#define DLSYM(name) \
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real_liblog_functions.name = \
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reinterpret_cast<decltype(LibLogFunctions::name)>(dlsym(liblog_handle, #name)); \
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if (real_liblog_functions.name == nullptr) { \
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return {}; \
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}
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DLSYM(__android_log_set_logger)
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DLSYM(__android_log_write_log_message)
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DLSYM(__android_log_logd_logger)
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DLSYM(__android_log_stderr_logger)
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DLSYM(__android_log_set_aborter)
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DLSYM(__android_log_call_aborter)
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DLSYM(__android_log_default_aborter)
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DLSYM(__android_log_set_minimum_priority);
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DLSYM(__android_log_get_minimum_priority);
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DLSYM(__android_log_set_default_tag);
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#undef DLSYM
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return real_liblog_functions;
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}();
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return liblog_functions;
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}
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#else
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const std::optional<LibLogFunctions>& GetLibLogFunctions() {
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static std::optional<LibLogFunctions> liblog_functions = []() -> std::optional<LibLogFunctions> {
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return LibLogFunctions{
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.__android_log_set_logger = __android_log_set_logger,
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.__android_log_write_log_message = __android_log_write_log_message,
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.__android_log_logd_logger = __android_log_logd_logger,
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.__android_log_stderr_logger = __android_log_stderr_logger,
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.__android_log_set_aborter = __android_log_set_aborter,
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.__android_log_call_aborter = __android_log_call_aborter,
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.__android_log_default_aborter = __android_log_default_aborter,
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.__android_log_set_minimum_priority = __android_log_set_minimum_priority,
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.__android_log_get_minimum_priority = __android_log_get_minimum_priority,
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.__android_log_set_default_tag = __android_log_set_default_tag,
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};
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}();
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return liblog_functions;
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}
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#endif
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} // namespace base
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} // namespace android
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