f7b41e04e5
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
(cherry picked from commit d6699b6b81)
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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