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90 lines
2.4 KiB
90 lines
2.4 KiB
4 months ago
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/*
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* Copyright (C) 2015 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 <stdint.h>
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#include <deque>
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#include <vector>
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#include <utility>
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#include <unwindstack/LocalUnwinder.h>
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#include "backtrace.h"
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#include "backtrace_fake.h"
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#include "debug_log.h"
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static std::deque<std::vector<uintptr_t>> g_fake_backtrace;
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void backtrace_fake_clear_all() {
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g_fake_backtrace.clear();
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}
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void backtrace_fake_add(const std::vector<uintptr_t>& ips) {
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g_fake_backtrace.push_back(ips);
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}
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void backtrace_startup() {
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}
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void backtrace_shutdown() {
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}
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size_t backtrace_get(uintptr_t* frames, size_t frame_num) {
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if (frame_num == 0 || g_fake_backtrace.size() == 0) {
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return 0;
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}
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size_t ips_size = g_fake_backtrace[0].size();
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size_t total_frames = (frame_num < ips_size) ? frame_num : ips_size;
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memcpy(frames, g_fake_backtrace[0].data(), sizeof(uintptr_t) * total_frames);
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g_fake_backtrace.pop_front();
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return total_frames;
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}
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void backtrace_log(const uintptr_t* frames, size_t frame_count) {
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for (size_t i = 0; i < frame_count; i++) {
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error_log(" #%02zd pc %p", i, reinterpret_cast<void*>(frames[i]));
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}
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}
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static std::deque<std::vector<unwindstack::LocalFrameData>> g_fake_local_frame_data;
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void BacktraceUnwindFakeClearAll() {
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g_fake_local_frame_data.clear();
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}
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void BacktraceUnwindFake(const std::vector<unwindstack::LocalFrameData>& frames) {
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g_fake_local_frame_data.push_back(frames);
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}
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bool Unwind(std::vector<uintptr_t>* frames, std::vector<unwindstack::LocalFrameData>* info, size_t) {
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if (g_fake_local_frame_data.empty()) {
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return false;
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}
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*info = g_fake_local_frame_data.front();
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g_fake_local_frame_data.pop_front();
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frames->clear();
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for (const auto& frame : *info) {
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frames->push_back(frame.pc);
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}
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return true;
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}
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void UnwindLog(const std::vector<unwindstack::LocalFrameData>& /*frame_info*/) {
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}
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