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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
// 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, int indent_level) {
DCHECK(out);
for (int i = 0; i < indent_level; ++i)
fprintf(out, " ");
}
void PrintUserData(
FILE* out,
int indent_level,
const google::protobuf::Map<std::string, browser_watcher::TypedValue>&
user_data) {
DCHECK(out);
Indent(out, indent_level);
fprintf(out, "User data (%zu)\n", user_data.size());
for (const auto& kv : user_data) {
Indent(out, indent_level + 1);
fprintf(out, "%s : ", kv.first.c_str());
const browser_watcher::TypedValue& value = kv.second;
switch (kv.second.value_case()) {
case browser_watcher::TypedValue::kBytesValue: {
const std::string& bytes_value = value.bytes_value();
for (size_t i = 0; i < bytes_value.size(); ++i)
fprintf(out, "%02X ", bytes_value.at(i));
fprintf(out, "\n");
break;
}
case browser_watcher::TypedValue::kBytesReference:
fprintf(out, "bytes reference (address: %llX, size: %llX)\n",
value.bytes_reference().address(),
value.bytes_reference().size());
break;
case browser_watcher::TypedValue::kStringValue:
fprintf(out, "\"%s\"\n", value.string_value().c_str());
break;
case browser_watcher::TypedValue::kStringReference:
fprintf(out, "string reference (address: %llX, size: %llX)\n",
value.string_reference().address(),
value.string_reference().size());
break;
case browser_watcher::TypedValue::kCharValue:
fprintf(out, "'%s'\n", value.char_value().c_str());
break;
case browser_watcher::TypedValue::kBoolValue:
fprintf(out, "%s\n", value.bool_value() ? "true" : "false");
break;
case browser_watcher::TypedValue::kSignedValue:
fprintf(out, "%lld\n", value.signed_value());
break;
case browser_watcher::TypedValue::kUnsignedValue:
fprintf(out, "%llu\n", value.unsigned_value());
break;
case browser_watcher::TypedValue::VALUE_NOT_SET:
fprintf(out, "<not set>\n");
break;
}
}
}
void PrintActivity(FILE* out,
int 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());
Indent(out, indent_level + 1);
fprintf(out, "address: %llX\n", activity.address());
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;
case browser_watcher::Activity::ACT_GENERIC:
Indent(out, indent_level + 1);
fprintf(out, "id: %u, data: %d\n", activity.generic_id(),
activity.generic_data());
break;
}
PrintUserData(out, indent_level + 1, activity.user_data());
}
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) {
PrintUserData(out, 0, report.global_data());
for (int i = 0; i < report.process_states_size(); ++i) {
const browser_watcher::ProcessState process = report.process_states(i);
PrintProcessState(out, process);
}
}
bool GetStabilityStreamRvaAndSize(RVA directory_rva,
ULONG32 stream_count,
FILE* file,
RVA* report_rva,
ULONG32* report_size_bytes) {
std::vector<MINIDUMP_DIRECTORY> directory;
directory.resize(stream_count);
CHECK_EQ(0, fseek(file, directory_rva, SEEK_SET));
CHECK_EQ(stream_count, fread(directory.data(), sizeof(MINIDUMP_DIRECTORY),
stream_count, file));
for (const MINIDUMP_DIRECTORY& entry : directory) {
constexpr ULONG32 kStabilityStream = static_cast<ULONG32>(0x4B6B0002);
if (entry.StreamType == kStabilityStream) {
*report_rva = entry.Location.Rva;
*report_size_bytes = entry.Location.DataSize;
return true;
}
}
return false;
}
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);
fprintf(stdout, "Number of streams: %u\n", header.NumberOfStreams);
RVA directory_rva = header.StreamDirectoryRva;
RVA report_rva;
ULONG32 report_size_bytes;
CHECK(GetStabilityStreamRvaAndSize(directory_rva, header.NumberOfStreams,
minidump_file.get(), &report_rva,
&report_size_bytes));
// 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);
}
|
