1cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project/* 2cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * 4cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * you may not use this file except in compliance with the License. 6cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * You may obtain a copy of the License at 7cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * 8cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * 10cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * See the License for the specific language governing permissions and 14cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project * limitations under the License. 15cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project */ 16cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 17cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project#define LOG_TAG "CallStack" 18cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 1922dbf3947fedf988e714a4703ddf85fc41413f90Mathias Agopian#include <utils/CallStack.h> 2022dbf3947fedf988e714a4703ddf85fc41413f90Mathias Agopian 21f2d250969041d6b728c0bc071d5a1b5b92daf19eDan Albert#include <memory> 22f2d250969041d6b728c0bc071d5a1b5b92daf19eDan Albert 23ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin#include <utils/Printer.h> 24ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin#include <utils/Errors.h> 25ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin#include <utils/Log.h> 269b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris 279b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris#include <backtrace/Backtrace.h> 28cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 29cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Projectnamespace android { 30cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 319b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher FerrisCallStack::CallStack() { 32cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project} 33cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 349b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher FerrisCallStack::CallStack(const char* logtag, int32_t ignoreDepth) { 359b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris this->update(ignoreDepth+1); 36ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin this->log(logtag); 37d34a8cad1efa1c8da1c7b5ad81226b822064cf73Mathias Agopian} 38d34a8cad1efa1c8da1c7b5ad81226b822064cf73Mathias Agopian 39ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff BrownCallStack::~CallStack() { 40cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project} 41cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 429b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferrisvoid CallStack::update(int32_t ignoreDepth, pid_t tid) { 439b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris mFrameLines.clear(); 44cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 45f2d250969041d6b728c0bc071d5a1b5b92daf19eDan Albert std::unique_ptr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid)); 469b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris if (!backtrace->Unwind(ignoreDepth)) { 479b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris ALOGW("%s: Failed to unwind callstack.", __FUNCTION__); 48cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project } 499b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris for (size_t i = 0; i < backtrace->NumFrames(); i++) { 509b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris mFrameLines.push_back(String8(backtrace->FormatFrameData(i).c_str())); 51ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin } 52ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown} 53ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown 54ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkinvoid CallStack::log(const char* logtag, android_LogPriority priority, const char* prefix) const { 55ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin LogPrinter printer(logtag, priority, prefix, /*ignoreBlankLines*/false); 56ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin print(printer); 57ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin} 58ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown 59ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkinvoid CallStack::dump(int fd, int indent, const char* prefix) const { 60ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin FdPrinter printer(fd, indent, prefix); 61ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin print(printer); 62ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown} 63ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown 64ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff BrownString8 CallStack::toString(const char* prefix) const { 65ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown String8 str; 66ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin 67ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin String8Printer printer(&str, prefix); 68ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin print(printer); 69ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin 70ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin return str; 71ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin} 72ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin 73ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkinvoid CallStack::print(Printer& printer) const { 749b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris for (size_t i = 0; i < mFrameLines.size(); i++) { 759b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris printer.printLine(mFrameLines[i]); 76cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project } 77cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project} 78cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 79cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project}; // namespace android 80