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// Copyright (c) 2014, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// microdump_processor.cc: A microdump processor.
//
// See microdump_processor.h for documentation.
#include "google_breakpad/processor/microdump_processor.h"
#include <assert.h>
#include <string>
#include "common/using_std_string.h"
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/microdump.h"
#include "google_breakpad/processor/process_state.h"
#include "google_breakpad/processor/stackwalker.h"
#include "google_breakpad/processor/stack_frame_symbolizer.h"
#include "processor/logging.h"
namespace google_breakpad {
MicrodumpProcessor::MicrodumpProcessor(StackFrameSymbolizer* frame_symbolizer)
: frame_symbolizer_(frame_symbolizer) {
assert(frame_symbolizer);
}
MicrodumpProcessor::~MicrodumpProcessor() {}
ProcessResult MicrodumpProcessor::Process(const string µdump_contents,
ProcessState* process_state) {
assert(process_state);
process_state->Clear();
if (microdump_contents.empty()) {
BPLOG(ERROR) << "Microdump is empty.";
return PROCESS_ERROR_MINIDUMP_NOT_FOUND;
}
Microdump microdump(microdump_contents);
process_state->modules_ = microdump.GetModules()->Copy();
scoped_ptr<Stackwalker> stackwalker(
Stackwalker::StackwalkerForCPU(
&process_state->system_info_,
microdump.GetContext(),
microdump.GetMemory(),
process_state->modules_,
/* unloaded_modules= */ NULL,
frame_symbolizer_));
scoped_ptr<CallStack> stack(new CallStack());
if (stackwalker.get()) {
if (!stackwalker->Walk(stack.get(),
&process_state->modules_without_symbols_,
&process_state->modules_with_corrupt_symbols_)) {
BPLOG(INFO) << "Processing was interrupted.";
return PROCESS_SYMBOL_SUPPLIER_INTERRUPTED;
}
} else {
BPLOG(ERROR) << "No stackwalker found for microdump.";
return PROCESS_ERROR_NO_THREAD_LIST;
}
process_state->threads_.push_back(stack.release());
process_state->thread_memory_regions_.push_back(microdump.GetMemory());
process_state->crashed_ = true;
process_state->requesting_thread_ = 0;
process_state->system_info_ = *microdump.GetSystemInfo();
return PROCESS_OK;
}
} // namespace google_breakpad
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