163860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris/* 263860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * Copyright (C) 2015 The Android Open Source Project 363860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * 463860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * Licensed under the Apache License, Version 2.0 (the "License"); 563860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * you may not use this file except in compliance with the License. 663860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * You may obtain a copy of the License at 763860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * 863860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * http://www.apache.org/licenses/LICENSE-2.0 963860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * 1063860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * Unless required by applicable law or agreed to in writing, software 1163860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * distributed under the License is distributed on an "AS IS" BASIS, 1263860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1363860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * See the License for the specific language governing permissions and 1463860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris * limitations under the License. 1563860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris */ 1663860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 1763860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris#include <stdint.h> 1863860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 1963860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris#include <deque> 2063860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris#include <vector> 2163860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris#include <utility> 2263860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 2363860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris#include "backtrace.h" 2463860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris#include "backtrace_fake.h" 2563860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris#include "debug_log.h" 2663860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 2763860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferrisstatic std::deque<std::vector<uintptr_t>> g_fake_backtrace; 2863860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 2963860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferrisvoid backtrace_fake_clear_all() { 3063860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris g_fake_backtrace.clear(); 3163860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris} 3263860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 3363860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferrisvoid backtrace_fake_add(const std::vector<uintptr_t>& ips) { 3463860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris g_fake_backtrace.push_back(ips); 3563860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris} 3663860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 3763860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferrisvoid backtrace_startup() { 3863860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris} 3963860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 4063860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferrisvoid backtrace_shutdown() { 4163860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris} 4263860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 4363860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferrissize_t backtrace_get(uintptr_t* frames, size_t frame_num) { 4463860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris if (frame_num == 0 || g_fake_backtrace.size() == 0) { 4563860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris return 0; 4663860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris } 4763860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 4863860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris size_t ips_size = g_fake_backtrace[0].size(); 4963860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris size_t total_frames = (frame_num < ips_size) ? frame_num : ips_size; 5063860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris memcpy(frames, g_fake_backtrace[0].data(), sizeof(uintptr_t) * total_frames); 5163860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris g_fake_backtrace.pop_front(); 5263860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris return total_frames; 5363860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris} 5463860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris 557993b80f894db20af4d1d154221c42fea6171a3dChristopher Ferrisvoid backtrace_log(const uintptr_t* frames, size_t frame_count) { 5663860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris for (size_t i = 0; i < frame_count; i++) { 5763860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris error_log(" #%02zd pc %p", i, reinterpret_cast<void*>(frames[i])); 5863860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris } 5963860cb8fd1adf3f679b9b4ad876323a8d65cd9dChristopher Ferris} 60