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79 lines
2.1 KiB
79 lines
2.1 KiB
/* |
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* Copyright (C) 2007 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#define LOG_TAG "CallStack" |
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#include <utils/CallStack.h> |
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#include <memory> |
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#include <utils/Printer.h> |
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#include <utils/Errors.h> |
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#include <utils/Log.h> |
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#include <backtrace/Backtrace.h> |
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namespace android { |
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CallStack::CallStack() { |
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} |
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CallStack::CallStack(const char* logtag, int32_t ignoreDepth) { |
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this->update(ignoreDepth+1); |
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this->log(logtag); |
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} |
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CallStack::~CallStack() { |
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} |
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void CallStack::update(int32_t ignoreDepth, pid_t tid) { |
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mFrameLines.clear(); |
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std::unique_ptr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid)); |
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if (!backtrace->Unwind(ignoreDepth)) { |
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ALOGW("%s: Failed to unwind callstack.", __FUNCTION__); |
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} |
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for (size_t i = 0; i < backtrace->NumFrames(); i++) { |
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mFrameLines.push_back(String8(backtrace->FormatFrameData(i).c_str())); |
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} |
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} |
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void CallStack::log(const char* logtag, android_LogPriority priority, const char* prefix) const { |
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LogPrinter printer(logtag, priority, prefix, /*ignoreBlankLines*/false); |
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print(printer); |
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} |
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void CallStack::dump(int fd, int indent, const char* prefix) const { |
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FdPrinter printer(fd, indent, prefix); |
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print(printer); |
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} |
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String8 CallStack::toString(const char* prefix) const { |
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String8 str; |
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String8Printer printer(&str, prefix); |
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print(printer); |
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return str; |
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} |
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void CallStack::print(Printer& printer) const { |
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for (size_t i = 0; i < mFrameLines.size(); i++) { |
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printer.printLine(mFrameLines[i]); |
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} |
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} |
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}; // namespace android
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