| /* |
| * 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 "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])); |
| } |
| } |