1// Copyright (c) 2014, Google Inc.
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met:
7//
8// * Redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer.
10// * Redistributions in binary form must reproduce the above
11// copyright notice, this list of conditions and the following disclaimer
12// in the documentation and/or other materials provided with the
13// distribution.
14// * Neither the name of Google Inc. nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30// microdump_processor.cc: A microdump processor.
31//
32// See microdump_processor.h for documentation.
33
34#include "google_breakpad/processor/microdump_processor.h"
35
36#include <assert.h>
37
38#include <string>
39
40#include "common/using_std_string.h"
41#include "google_breakpad/processor/call_stack.h"
42#include "google_breakpad/processor/microdump.h"
43#include "google_breakpad/processor/process_state.h"
44#include "google_breakpad/processor/stackwalker.h"
45#include "google_breakpad/processor/stack_frame_symbolizer.h"
46#include "processor/logging.h"
47
48namespace google_breakpad {
49
50MicrodumpProcessor::MicrodumpProcessor(StackFrameSymbolizer* frame_symbolizer)
51 : frame_symbolizer_(frame_symbolizer) {
52 assert(frame_symbolizer);
53}
54
55MicrodumpProcessor::~MicrodumpProcessor() {}
56
57ProcessResult MicrodumpProcessor::Process(Microdump *microdump,
58 ProcessState* process_state) {
59 assert(process_state);
60
61 process_state->Clear();
62
63 process_state->modules_ = microdump->GetModules()->Copy();
64 scoped_ptr<Stackwalker> stackwalker(
65 Stackwalker::StackwalkerForCPU(
66 &process_state->system_info_,
67 microdump->GetContext(),
68 microdump->GetMemory(),
69 process_state->modules_,
70 /* unloaded_modules= */ NULL,
71 frame_symbolizer_));
72
73 scoped_ptr<CallStack> stack(new CallStack());
74 if (stackwalker.get()) {
75 if (!stackwalker->Walk(stack.get(),
76 &process_state->modules_without_symbols_,
77 &process_state->modules_with_corrupt_symbols_)) {
78 BPLOG(INFO) << "Processing was interrupted.";
79 return PROCESS_SYMBOL_SUPPLIER_INTERRUPTED;
80 }
81 } else {
82 BPLOG(ERROR) << "No stackwalker found for microdump.";
83 return PROCESS_ERROR_NO_THREAD_LIST;
84 }
85
86 process_state->threads_.push_back(stack.release());
87 process_state->thread_memory_regions_.push_back(microdump->GetMemory());
88 process_state->crashed_ = true;
89 process_state->requesting_thread_ = 0;
90 process_state->system_info_ = *microdump->GetSystemInfo();
91 process_state->crash_reason_ = microdump->GetCrashReason();
92 process_state->crash_address_ = microdump->GetCrashAddress();
93
94 return PROCESS_OK;
95}
96
97} // namespace google_breakpad
98