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 19cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project#include <utils/CallStack.h> 20ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin#include <utils/Printer.h> 21ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin#include <utils/Errors.h> 22ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin#include <utils/Log.h> 239b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris#include <UniquePtr.h> 249b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris 259b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris#include <backtrace/Backtrace.h> 26cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 27cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Projectnamespace android { 28cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 299b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher FerrisCallStack::CallStack() { 30cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project} 31cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 329b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher FerrisCallStack::CallStack(const char* logtag, int32_t ignoreDepth) { 339b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris this->update(ignoreDepth+1); 34ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin this->log(logtag); 35d34a8cad1efa1c8da1c7b5ad81226b822064cf73Mathias Agopian} 36d34a8cad1efa1c8da1c7b5ad81226b822064cf73Mathias Agopian 37ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff BrownCallStack::~CallStack() { 38cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project} 39cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 409b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferrisvoid CallStack::update(int32_t ignoreDepth, pid_t tid) { 419b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris mFrameLines.clear(); 42cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 439b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris UniquePtr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid)); 449b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris if (!backtrace->Unwind(ignoreDepth)) { 459b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris ALOGW("%s: Failed to unwind callstack.", __FUNCTION__); 46cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project } 479b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris for (size_t i = 0; i < backtrace->NumFrames(); i++) { 489b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris mFrameLines.push_back(String8(backtrace->FormatFrameData(i).c_str())); 49ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin } 50ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown} 51ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown 52ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkinvoid CallStack::log(const char* logtag, android_LogPriority priority, const char* prefix) const { 53ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin LogPrinter printer(logtag, priority, prefix, /*ignoreBlankLines*/false); 54ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin print(printer); 55ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin} 56ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown 57ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkinvoid CallStack::dump(int fd, int indent, const char* prefix) const { 58ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin FdPrinter printer(fd, indent, prefix); 59ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin print(printer); 60ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown} 61ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown 62ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff BrownString8 CallStack::toString(const char* prefix) const { 63ea45b01f9bc2d1ef1f8d97ca0480336d23e0aa97Jeff Brown String8 str; 64ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin 65ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin String8Printer printer(&str, prefix); 66ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin print(printer); 67ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin 68ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin return str; 69ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin} 70ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkin 71ec79ef2e7b6b1d81266637ca0e002b5c0c5a789bIgor Murashkinvoid CallStack::print(Printer& printer) const { 729b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris for (size_t i = 0; i < mFrameLines.size(); i++) { 739b0e074c6d38143e01616404a08b0c7aa992f3c3Christopher Ferris printer.printLine(mFrameLines[i]); 74cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project } 75cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project} 76cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project 77cbb1011c95e0c25c29e40e203a6a31bccd029da3The Android Open Source Project}; // namespace android 78