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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <deque>
#include <vector>
#include <utility>
#include <unwindstack/Unwinder.h>
#include "backtrace.h"
#include "backtrace_fake.h"
#include "debug_log.h"
static std::deque<std::vector<uintptr_t>> g_fake_backtrace;
void backtrace_fake_clear_all() {
g_fake_backtrace.clear();
}
void backtrace_fake_add(const std::vector<uintptr_t>& ips) {
g_fake_backtrace.push_back(ips);
}
void backtrace_startup() {
}
void backtrace_shutdown() {
}
size_t backtrace_get(uintptr_t* frames, size_t frame_num) {
if (frame_num == 0 || g_fake_backtrace.size() == 0) {
return 0;
}
size_t ips_size = g_fake_backtrace[0].size();
size_t total_frames = (frame_num < ips_size) ? frame_num : ips_size;
memcpy(frames, g_fake_backtrace[0].data(), sizeof(uintptr_t) * total_frames);
g_fake_backtrace.pop_front();
return total_frames;
}
void backtrace_log(const uintptr_t* frames, size_t frame_count) {
for (size_t i = 0; i < frame_count; i++) {
error_log(" #%02zd pc %p", i, reinterpret_cast<void*>(frames[i]));
}
}
static std::deque<std::vector<unwindstack::FrameData>> g_fake_local_frame_data;
void BacktraceUnwindFakeClearAll() {
g_fake_local_frame_data.clear();
}
void BacktraceUnwindFake(const std::vector<unwindstack::FrameData>& frames) {
g_fake_local_frame_data.push_back(frames);
}
bool Unwind(std::vector<uintptr_t>* frames, std::vector<unwindstack::FrameData>* info, size_t) {
if (g_fake_local_frame_data.empty()) {
return false;
}
*info = g_fake_local_frame_data.front();
g_fake_local_frame_data.pop_front();
frames->clear();
for (const auto& frame : *info) {
frames->push_back(frame.pc);
}
return true;
}
void UnwindLog(const std::vector<unwindstack::FrameData>& /*frame_info*/) {}
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