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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 #include "components/metrics/call_stack_profile_metrics_provider.h" | 5 #include "components/metrics/call_stack_profile_metrics_provider.h" |
6 | 6 |
| 7 #include <stddef.h> |
| 8 #include <stdint.h> |
| 9 |
7 #include <algorithm> | 10 #include <algorithm> |
8 #include <cstring> | 11 #include <cstring> |
9 #include <map> | 12 #include <map> |
10 #include <utility> | 13 #include <utility> |
11 #include <vector> | 14 #include <vector> |
12 | 15 |
13 #include "base/bind.h" | 16 #include "base/bind.h" |
14 #include "base/location.h" | 17 #include "base/location.h" |
15 #include "base/logging.h" | 18 #include "base/logging.h" |
16 #include "base/macros.h" | 19 #include "base/macros.h" |
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194 } | 197 } |
195 | 198 |
196 // Invoked on an arbitrary thread. Ignores the provided profiles. | 199 // Invoked on an arbitrary thread. Ignores the provided profiles. |
197 void IgnoreCompletedProfiles( | 200 void IgnoreCompletedProfiles( |
198 const StackSamplingProfiler::CallStackProfiles& profiles) { | 201 const StackSamplingProfiler::CallStackProfiles& profiles) { |
199 } | 202 } |
200 | 203 |
201 // Functions to encode protobufs ---------------------------------------------- | 204 // Functions to encode protobufs ---------------------------------------------- |
202 | 205 |
203 // The protobuf expects the MD5 checksum prefix of the module name. | 206 // The protobuf expects the MD5 checksum prefix of the module name. |
204 uint64 HashModuleFilename(const base::FilePath& filename) { | 207 uint64_t HashModuleFilename(const base::FilePath& filename) { |
205 const base::FilePath::StringType basename = filename.BaseName().value(); | 208 const base::FilePath::StringType basename = filename.BaseName().value(); |
206 // Copy the bytes in basename into a string buffer. | 209 // Copy the bytes in basename into a string buffer. |
207 size_t basename_length_in_bytes = | 210 size_t basename_length_in_bytes = |
208 basename.size() * sizeof(base::FilePath::CharType); | 211 basename.size() * sizeof(base::FilePath::CharType); |
209 std::string name_bytes(basename_length_in_bytes, '\0'); | 212 std::string name_bytes(basename_length_in_bytes, '\0'); |
210 memcpy(&name_bytes[0], &basename[0], basename_length_in_bytes); | 213 memcpy(&name_bytes[0], &basename[0], basename_length_in_bytes); |
211 return base::HashMetricName(name_bytes); | 214 return base::HashMetricName(name_bytes); |
212 } | 215 } |
213 | 216 |
214 // Transcode |sample| into |proto_sample|, using base addresses in |modules| to | 217 // Transcode |sample| into |proto_sample|, using base addresses in |modules| to |
215 // compute module instruction pointer offsets. | 218 // compute module instruction pointer offsets. |
216 void CopySampleToProto( | 219 void CopySampleToProto( |
217 const StackSamplingProfiler::Sample& sample, | 220 const StackSamplingProfiler::Sample& sample, |
218 const std::vector<StackSamplingProfiler::Module>& modules, | 221 const std::vector<StackSamplingProfiler::Module>& modules, |
219 CallStackProfile::Sample* proto_sample) { | 222 CallStackProfile::Sample* proto_sample) { |
220 for (const StackSamplingProfiler::Frame& frame : sample) { | 223 for (const StackSamplingProfiler::Frame& frame : sample) { |
221 CallStackProfile::Entry* entry = proto_sample->add_entry(); | 224 CallStackProfile::Entry* entry = proto_sample->add_entry(); |
222 // A frame may not have a valid module. If so, we can't compute the | 225 // A frame may not have a valid module. If so, we can't compute the |
223 // instruction pointer offset, and we don't want to send bare pointers, so | 226 // instruction pointer offset, and we don't want to send bare pointers, so |
224 // leave call_stack_entry empty. | 227 // leave call_stack_entry empty. |
225 if (frame.module_index == StackSamplingProfiler::Frame::kUnknownModuleIndex) | 228 if (frame.module_index == StackSamplingProfiler::Frame::kUnknownModuleIndex) |
226 continue; | 229 continue; |
227 int64 module_offset = | 230 int64_t module_offset = |
228 reinterpret_cast<const char*>(frame.instruction_pointer) - | 231 reinterpret_cast<const char*>(frame.instruction_pointer) - |
229 reinterpret_cast<const char*>(modules[frame.module_index].base_address); | 232 reinterpret_cast<const char*>(modules[frame.module_index].base_address); |
230 DCHECK_GE(module_offset, 0); | 233 DCHECK_GE(module_offset, 0); |
231 entry->set_address(static_cast<uint64>(module_offset)); | 234 entry->set_address(static_cast<uint64_t>(module_offset)); |
232 entry->set_module_id_index(frame.module_index); | 235 entry->set_module_id_index(frame.module_index); |
233 } | 236 } |
234 } | 237 } |
235 | 238 |
236 // Transcode |profile| into |proto_profile|. | 239 // Transcode |profile| into |proto_profile|. |
237 void CopyProfileToProto( | 240 void CopyProfileToProto( |
238 const StackSamplingProfiler::CallStackProfile& profile, | 241 const StackSamplingProfiler::CallStackProfile& profile, |
239 bool preserve_sample_ordering, | 242 bool preserve_sample_ordering, |
240 CallStackProfile* proto_profile) { | 243 CallStackProfile* proto_profile) { |
241 if (profile.samples.empty()) | 244 if (profile.samples.empty()) |
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384 | 387 |
385 // static | 388 // static |
386 bool CallStackProfileMetricsProvider::IsReportingEnabledByFieldTrial() { | 389 bool CallStackProfileMetricsProvider::IsReportingEnabledByFieldTrial() { |
387 const std::string group_name = base::FieldTrialList::FindFullName( | 390 const std::string group_name = base::FieldTrialList::FindFullName( |
388 CallStackProfileMetricsProvider::kFieldTrialName); | 391 CallStackProfileMetricsProvider::kFieldTrialName); |
389 return group_name == | 392 return group_name == |
390 CallStackProfileMetricsProvider::kReportProfilesGroupName; | 393 CallStackProfileMetricsProvider::kReportProfilesGroupName; |
391 } | 394 } |
392 | 395 |
393 } // namespace metrics | 396 } // namespace metrics |
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