c2adad1815
Bug: http://b/175635923 Test: treehugger Change-Id: Ia191be0b4861b011640edc703b55c13c88bce300
106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <cxxabi.h>
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#include <inttypes.h>
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#include <pthread.h>
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#include <stdint.h>
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#include <algorithm>
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#include <memory>
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#include <string>
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#include <vector>
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#include <android-base/stringprintf.h>
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#include <unwindstack/AndroidUnwinder.h>
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#include <unwindstack/Unwinder.h>
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#include "UnwindBacktrace.h"
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#include "debug_log.h"
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#if defined(__LP64__)
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#define PAD_PTR "016" PRIx64
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#else
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#define PAD_PTR "08" PRIx64
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#endif
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bool Unwind(std::vector<uintptr_t>* frames, std::vector<unwindstack::FrameData>* frame_info,
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size_t max_frames) {
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[[clang::no_destroy]] static unwindstack::AndroidLocalUnwinder unwinder(
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std::vector<std::string>{"libc_malloc_debug.so"});
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unwindstack::AndroidUnwinderData data(max_frames);
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if (!unwinder.Unwind(data)) {
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frames->clear();
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frame_info->clear();
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return false;
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}
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frames->resize(data.frames.size());
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for (const auto& frame : data.frames) {
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frames->at(frame.num) = frame.pc;
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}
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*frame_info = std::move(data.frames);
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return true;
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}
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void UnwindLog(const std::vector<unwindstack::FrameData>& frame_info) {
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for (size_t i = 0; i < frame_info.size(); i++) {
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const unwindstack::FrameData* info = &frame_info[i];
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auto map_info = info->map_info;
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std::string line = android::base::StringPrintf(" #%0zd pc %" PAD_PTR " ", i, info->rel_pc);
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if (map_info != nullptr && map_info->offset() != 0) {
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line += android::base::StringPrintf("(offset 0x%" PRIx64 ") ", map_info->offset());
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}
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if (map_info == nullptr) {
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line += "<unknown>";
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} else if (map_info->name().empty()) {
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line += android::base::StringPrintf("<anonymous:%" PRIx64 ">", map_info->start());
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} else {
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line += map_info->name();
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}
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if (!info->function_name.empty()) {
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line += " (";
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char* demangled_name =
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abi::__cxa_demangle(info->function_name.c_str(), nullptr, nullptr, nullptr);
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if (demangled_name != nullptr) {
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line += demangled_name;
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free(demangled_name);
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} else {
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line += info->function_name;
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}
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if (info->function_offset != 0) {
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line += "+" + std::to_string(info->function_offset);
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}
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line += ")";
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}
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error_log_string(line.c_str());
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}
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}
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