038ac694b3
Fix a small bug in the Printer for strings that didn't properly
prepend the prefix.
(cherry picked from commit 9b0e074c6d)
Change-Id: I78bfa3f76864c34f33fb439bf20dfc85616f1077
77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
/*
|
|
* Copyright (C) 2007 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.
|
|
*/
|
|
|
|
#define LOG_TAG "CallStack"
|
|
|
|
#include <utils/CallStack.h>
|
|
#include <utils/Printer.h>
|
|
#include <utils/Errors.h>
|
|
#include <utils/Log.h>
|
|
#include <UniquePtr.h>
|
|
|
|
#include <backtrace/Backtrace.h>
|
|
|
|
namespace android {
|
|
|
|
CallStack::CallStack() {
|
|
}
|
|
|
|
CallStack::CallStack(const char* logtag, int32_t ignoreDepth) {
|
|
this->update(ignoreDepth+1);
|
|
this->log(logtag);
|
|
}
|
|
|
|
CallStack::~CallStack() {
|
|
}
|
|
|
|
void CallStack::update(int32_t ignoreDepth, pid_t tid) {
|
|
mFrameLines.clear();
|
|
|
|
UniquePtr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid));
|
|
if (!backtrace->Unwind(ignoreDepth)) {
|
|
ALOGW("%s: Failed to unwind callstack.", __FUNCTION__);
|
|
}
|
|
for (size_t i = 0; i < backtrace->NumFrames(); i++) {
|
|
mFrameLines.push_back(String8(backtrace->FormatFrameData(i).c_str()));
|
|
}
|
|
}
|
|
|
|
void CallStack::log(const char* logtag, android_LogPriority priority, const char* prefix) const {
|
|
LogPrinter printer(logtag, priority, prefix, /*ignoreBlankLines*/false);
|
|
print(printer);
|
|
}
|
|
|
|
void CallStack::dump(int fd, int indent, const char* prefix) const {
|
|
FdPrinter printer(fd, indent, prefix);
|
|
print(printer);
|
|
}
|
|
|
|
String8 CallStack::toString(const char* prefix) const {
|
|
String8 str;
|
|
|
|
String8Printer printer(&str, prefix);
|
|
print(printer);
|
|
|
|
return str;
|
|
}
|
|
|
|
void CallStack::print(Printer& printer) const {
|
|
for (size_t i = 0; i < mFrameLines.size(); i++) {
|
|
printer.printLine(mFrameLines[i]);
|
|
}
|
|
}
|
|
|
|
}; // namespace android
|