1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// A utility for printing the contents of a postmortem stability minidump.
#include <windows.h> // NOLINT
#include <dbghelp.h>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_file.h"
#include "base/logging.h"
#include "base/strings/stringprintf.h"
#include "components/browser_watcher/stability_report.pb.h"
namespace {
const char kUsage[] =
"Usage: %ls --minidump=<minidump file>\n"
"\n"
" Dumps the contents of a postmortem minidump in a human readable way.\n";
bool ParseCommandLine(const base::CommandLine* cmd,
base::FilePath* minidump_path) {
*minidump_path = cmd->GetSwitchValuePath("minidump");
if (minidump_path->empty()) {
LOG(ERROR) << "Missing minidump file.\n";
LOG(ERROR) << base::StringPrintf(kUsage, cmd->GetProgram().value().c_str());
return false;
}
return true;
}
void Indent(FILE* out, size_t indent_level) {
DCHECK(out);
for (size_t i = 0; i < indent_level; ++i)
fprintf(out, " ");
}
void PrintActivity(FILE* out,
size_t indent_level,
const browser_watcher::Activity& activity) {
DCHECK(out);
Indent(out, indent_level);
fprintf(out, "Activity\n");
Indent(out, indent_level + 1);
fprintf(out, "type: %d\n", activity.type());
Indent(out, indent_level + 1);
fprintf(out, "time: %lld\n", activity.time());
switch (activity.type()) {
case browser_watcher::Activity::UNKNOWN:
break;
case browser_watcher::Activity::ACT_TASK_RUN:
Indent(out, indent_level + 1);
fprintf(out, "origin_address: %llx\n", activity.origin_address());
fprintf(out, "task_sequence_id: %lld\n", activity.task_sequence_id());
break;
case browser_watcher::Activity::ACT_LOCK_ACQUIRE:
Indent(out, indent_level + 1);
fprintf(out, "lock_address: %llx\n", activity.lock_address());
break;
case browser_watcher::Activity::ACT_EVENT_WAIT:
Indent(out, indent_level + 1);
fprintf(out, "event_address: %llx\n", activity.event_address());
break;
case browser_watcher::Activity::ACT_THREAD_JOIN:
Indent(out, indent_level + 1);
fprintf(out, "thread_id: %lld\n", activity.thread_id());
break;
case browser_watcher::Activity::ACT_PROCESS_WAIT:
Indent(out, indent_level + 1);
fprintf(out, "process_id: %lld\n", activity.process_id());
break;
}
}
void PrintProcessState(FILE* out,
const browser_watcher::ProcessState& process) {
fprintf(out, "Process %lld (%d threads)\n", process.process_id(),
process.threads_size());
for (const browser_watcher::ThreadState& thread : process.threads()) {
fprintf(out, "Thread %lld (%s) : %d activities\n", thread.thread_id(),
thread.thread_name().c_str(), thread.activity_count());
for (const browser_watcher::Activity& activity : thread.activities())
PrintActivity(out, 1, activity);
}
}
// TODO(manzagop): flesh out as StabilityReport gets fleshed out.
void PrintReport(FILE* out, const browser_watcher::StabilityReport& report) {
for (int i = 0; i < report.process_states_size(); ++i) {
const browser_watcher::ProcessState process = report.process_states(i);
PrintProcessState(out, process);
}
}
int Main(int argc, char** argv) {
base::CommandLine::Init(argc, argv);
// Get the dump.
base::FilePath minidump_path;
if (!ParseCommandLine(base::CommandLine::ForCurrentProcess(), &minidump_path))
return 1;
// Read the minidump to extract the proto.
base::ScopedFILE minidump_file;
minidump_file.reset(base::OpenFile(minidump_path, "rb"));
CHECK(minidump_file.get());
// Read the header.
// TODO(manzagop): leverage Crashpad to do this.
MINIDUMP_HEADER header = {};
CHECK_EQ(1U, fread(&header, sizeof(header), 1U, minidump_file.get()));
CHECK_EQ(static_cast<ULONG32>(MINIDUMP_SIGNATURE), header.Signature);
CHECK_EQ(2U, header.NumberOfStreams);
RVA directory_rva = header.StreamDirectoryRva;
// Read the directory entry for the stability report's stream.
// Note: this hardcodes an expectation that the stability report is the first
// encountered stream. This is acceptable for a debug tool.
MINIDUMP_DIRECTORY directory = {};
CHECK_EQ(0, fseek(minidump_file.get(), directory_rva, SEEK_SET));
CHECK_EQ(1U, fread(&directory, sizeof(directory), 1U, minidump_file.get()));
CHECK_EQ(static_cast<ULONG32>(0x4B6B0002), directory.StreamType);
RVA report_rva = directory.Location.Rva;
ULONG32 report_size_bytes = directory.Location.DataSize;
// Read the serialized stability report.
std::string serialized_report;
serialized_report.resize(report_size_bytes);
CHECK_EQ(0, fseek(minidump_file.get(), report_rva, SEEK_SET));
CHECK_EQ(report_size_bytes, fread(&serialized_report.at(0), 1,
report_size_bytes, minidump_file.get()));
browser_watcher::StabilityReport report;
CHECK(report.ParseFromString(serialized_report));
// Note: we can't use the usual protocol buffer human readable API due to
// the use of optimize_for = LITE_RUNTIME.
PrintReport(stdout, report);
return 0;
}
} // namespace
int main(int argc, char** argv) {
return Main(argc, argv);
}
|
