OLD | NEW |
1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // A utility for printing the contents of a postmortem stability minidump. | 5 // A utility for printing the contents of a postmortem stability minidump. |
6 | 6 |
7 #include <windows.h> // NOLINT | 7 #include <windows.h> // NOLINT |
| 8 |
8 #include <dbghelp.h> | 9 #include <dbghelp.h> |
9 | 10 |
10 #include "base/command_line.h" | 11 #include "base/command_line.h" |
11 #include "base/files/file_path.h" | 12 #include "base/files/file_path.h" |
12 #include "base/files/file_util.h" | 13 #include "base/files/file_util.h" |
13 #include "base/files/scoped_file.h" | 14 #include "base/files/scoped_file.h" |
14 #include "base/logging.h" | 15 #include "base/logging.h" |
15 #include "base/strings/stringprintf.h" | 16 #include "base/strings/stringprintf.h" |
16 #include "components/browser_watcher/stability_report.pb.h" | 17 #include "components/browser_watcher/stability_report.pb.h" |
17 | 18 |
(...skipping 133 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
151 | 152 |
152 // TODO(manzagop): flesh out as StabilityReport gets fleshed out. | 153 // TODO(manzagop): flesh out as StabilityReport gets fleshed out. |
153 void PrintReport(FILE* out, const browser_watcher::StabilityReport& report) { | 154 void PrintReport(FILE* out, const browser_watcher::StabilityReport& report) { |
154 PrintUserData(out, 0, report.global_data()); | 155 PrintUserData(out, 0, report.global_data()); |
155 for (int i = 0; i < report.process_states_size(); ++i) { | 156 for (int i = 0; i < report.process_states_size(); ++i) { |
156 const browser_watcher::ProcessState process = report.process_states(i); | 157 const browser_watcher::ProcessState process = report.process_states(i); |
157 PrintProcessState(out, process); | 158 PrintProcessState(out, process); |
158 } | 159 } |
159 } | 160 } |
160 | 161 |
| 162 bool GetStabilityStreamRvaAndSize(RVA directory_rva, |
| 163 ULONG32 stream_count, |
| 164 FILE* file, |
| 165 RVA* report_rva, |
| 166 ULONG32* report_size_bytes) { |
| 167 std::vector<MINIDUMP_DIRECTORY> directory; |
| 168 directory.resize(stream_count); |
| 169 |
| 170 CHECK_EQ(0, fseek(file, directory_rva, SEEK_SET)); |
| 171 CHECK_EQ(stream_count, fread(directory.data(), sizeof(MINIDUMP_DIRECTORY), |
| 172 stream_count, file)); |
| 173 |
| 174 for (const MINIDUMP_DIRECTORY& entry : directory) { |
| 175 constexpr ULONG32 kStabilityStream = static_cast<ULONG32>(0x4B6B0002); |
| 176 if (entry.StreamType == kStabilityStream) { |
| 177 *report_rva = entry.Location.Rva; |
| 178 *report_size_bytes = entry.Location.DataSize; |
| 179 return true; |
| 180 } |
| 181 } |
| 182 |
| 183 return false; |
| 184 } |
| 185 |
161 int Main(int argc, char** argv) { | 186 int Main(int argc, char** argv) { |
162 base::CommandLine::Init(argc, argv); | 187 base::CommandLine::Init(argc, argv); |
163 | 188 |
164 // Get the dump. | 189 // Get the dump. |
165 base::FilePath minidump_path; | 190 base::FilePath minidump_path; |
166 if (!ParseCommandLine(base::CommandLine::ForCurrentProcess(), &minidump_path)) | 191 if (!ParseCommandLine(base::CommandLine::ForCurrentProcess(), &minidump_path)) |
167 return 1; | 192 return 1; |
168 | 193 |
169 // Read the minidump to extract the proto. | 194 // Read the minidump to extract the proto. |
170 base::ScopedFILE minidump_file; | 195 base::ScopedFILE minidump_file; |
171 minidump_file.reset(base::OpenFile(minidump_path, "rb")); | 196 minidump_file.reset(base::OpenFile(minidump_path, "rb")); |
172 CHECK(minidump_file.get()); | 197 CHECK(minidump_file.get()); |
173 | 198 |
174 // Read the header. | 199 // Read the header. |
175 // TODO(manzagop): leverage Crashpad to do this. | 200 // TODO(manzagop): leverage Crashpad to do this. |
176 MINIDUMP_HEADER header = {}; | 201 MINIDUMP_HEADER header = {}; |
177 CHECK_EQ(1U, fread(&header, sizeof(header), 1U, minidump_file.get())); | 202 CHECK_EQ(1U, fread(&header, sizeof(header), 1U, minidump_file.get())); |
178 CHECK_EQ(static_cast<ULONG32>(MINIDUMP_SIGNATURE), header.Signature); | 203 CHECK_EQ(static_cast<ULONG32>(MINIDUMP_SIGNATURE), header.Signature); |
179 CHECK_EQ(2U, header.NumberOfStreams); | 204 fprintf(stdout, "Number of streams: %u\n", header.NumberOfStreams); |
180 RVA directory_rva = header.StreamDirectoryRva; | 205 RVA directory_rva = header.StreamDirectoryRva; |
181 | 206 |
182 // Read the directory entry for the stability report's stream. | 207 RVA report_rva; |
183 // Note: this hardcodes an expectation that the stability report is the first | 208 ULONG32 report_size_bytes; |
184 // encountered stream. This is acceptable for a debug tool. | 209 CHECK(GetStabilityStreamRvaAndSize(directory_rva, header.NumberOfStreams, |
185 MINIDUMP_DIRECTORY directory = {}; | 210 minidump_file.get(), &report_rva, |
186 CHECK_EQ(0, fseek(minidump_file.get(), directory_rva, SEEK_SET)); | 211 &report_size_bytes)); |
187 CHECK_EQ(1U, fread(&directory, sizeof(directory), 1U, minidump_file.get())); | |
188 CHECK_EQ(static_cast<ULONG32>(0x4B6B0002), directory.StreamType); | |
189 RVA report_rva = directory.Location.Rva; | |
190 ULONG32 report_size_bytes = directory.Location.DataSize; | |
191 | 212 |
192 // Read the serialized stability report. | 213 // Read the serialized stability report. |
193 std::string serialized_report; | 214 std::string serialized_report; |
194 serialized_report.resize(report_size_bytes); | 215 serialized_report.resize(report_size_bytes); |
195 CHECK_EQ(0, fseek(minidump_file.get(), report_rva, SEEK_SET)); | 216 CHECK_EQ(0, fseek(minidump_file.get(), report_rva, SEEK_SET)); |
196 CHECK_EQ(report_size_bytes, fread(&serialized_report.at(0), 1, | 217 CHECK_EQ(report_size_bytes, fread(&serialized_report.at(0), 1, |
197 report_size_bytes, minidump_file.get())); | 218 report_size_bytes, minidump_file.get())); |
198 | 219 |
199 browser_watcher::StabilityReport report; | 220 browser_watcher::StabilityReport report; |
200 CHECK(report.ParseFromString(serialized_report)); | 221 CHECK(report.ParseFromString(serialized_report)); |
201 | 222 |
202 // Note: we can't use the usual protocol buffer human readable API due to | 223 // Note: we can't use the usual protocol buffer human readable API due to |
203 // the use of optimize_for = LITE_RUNTIME. | 224 // the use of optimize_for = LITE_RUNTIME. |
204 PrintReport(stdout, report); | 225 PrintReport(stdout, report); |
205 | 226 |
206 return 0; | 227 return 0; |
207 } | 228 } |
208 | 229 |
209 } // namespace | 230 } // namespace |
210 | 231 |
211 int main(int argc, char** argv) { | 232 int main(int argc, char** argv) { |
212 return Main(argc, argv); | 233 return Main(argc, argv); |
213 } | 234 } |
OLD | NEW |