Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_PROFILER_PROFILE_GENERATOR_H_ |
| 6 | #define V8_PROFILER_PROFILE_GENERATOR_H_ |
| 7 | |
| 8 | #include <map> |
| 9 | #include "include/v8-profiler.h" |
| 10 | #include "src/allocation.h" |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 11 | #include "src/base/hashmap.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 12 | #include "src/compiler.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 13 | #include "src/profiler/strings-storage.h" |
| 14 | |
| 15 | namespace v8 { |
| 16 | namespace internal { |
| 17 | |
| 18 | // Provides a mapping from the offsets within generated code to |
| 19 | // the source line. |
| 20 | class JITLineInfoTable : public Malloced { |
| 21 | public: |
| 22 | JITLineInfoTable(); |
| 23 | ~JITLineInfoTable(); |
| 24 | |
| 25 | void SetPosition(int pc_offset, int line); |
| 26 | int GetSourceLineNumber(int pc_offset) const; |
| 27 | |
| 28 | bool empty() const { return pc_offset_map_.empty(); } |
| 29 | |
| 30 | private: |
| 31 | // pc_offset -> source line |
| 32 | typedef std::map<int, int> PcOffsetMap; |
| 33 | PcOffsetMap pc_offset_map_; |
| 34 | DISALLOW_COPY_AND_ASSIGN(JITLineInfoTable); |
| 35 | }; |
| 36 | |
| 37 | |
| 38 | class CodeEntry { |
| 39 | public: |
| 40 | // CodeEntry doesn't own name strings, just references them. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 41 | inline CodeEntry(CodeEventListener::LogEventsAndTags tag, const char* name, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 42 | const char* name_prefix = CodeEntry::kEmptyNamePrefix, |
| 43 | const char* resource_name = CodeEntry::kEmptyResourceName, |
| 44 | int line_number = v8::CpuProfileNode::kNoLineNumberInfo, |
| 45 | int column_number = v8::CpuProfileNode::kNoColumnNumberInfo, |
| 46 | JITLineInfoTable* line_info = NULL, |
| 47 | Address instruction_start = NULL); |
| 48 | ~CodeEntry(); |
| 49 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 50 | // Container describing inlined frames at eager deopt points. Is eventually |
| 51 | // being translated into v8::CpuProfileDeoptFrame by the profiler. |
| 52 | struct DeoptInlinedFrame { |
| 53 | int position; |
| 54 | int script_id; |
| 55 | }; |
| 56 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 57 | const char* name_prefix() const { return name_prefix_; } |
| 58 | bool has_name_prefix() const { return name_prefix_[0] != '\0'; } |
| 59 | const char* name() const { return name_; } |
| 60 | const char* resource_name() const { return resource_name_; } |
| 61 | int line_number() const { return line_number_; } |
| 62 | int column_number() const { return column_number_; } |
| 63 | const JITLineInfoTable* line_info() const { return line_info_; } |
| 64 | int script_id() const { return script_id_; } |
| 65 | void set_script_id(int script_id) { script_id_ = script_id; } |
| 66 | int position() const { return position_; } |
| 67 | void set_position(int position) { position_ = position; } |
| 68 | void set_bailout_reason(const char* bailout_reason) { |
| 69 | bailout_reason_ = bailout_reason; |
| 70 | } |
| 71 | const char* bailout_reason() const { return bailout_reason_; } |
| 72 | |
| 73 | void set_deopt_info(const char* deopt_reason, SourcePosition position, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 74 | int deopt_id) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 75 | DCHECK(deopt_position_.IsUnknown()); |
| 76 | deopt_reason_ = deopt_reason; |
| 77 | deopt_position_ = position; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 78 | deopt_id_ = deopt_id; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 79 | } |
| 80 | CpuProfileDeoptInfo GetDeoptInfo(); |
| 81 | const char* deopt_reason() const { return deopt_reason_; } |
| 82 | SourcePosition deopt_position() const { return deopt_position_; } |
| 83 | bool has_deopt_info() const { return !deopt_position_.IsUnknown(); } |
| 84 | void clear_deopt_info() { |
| 85 | deopt_reason_ = kNoDeoptReason; |
| 86 | deopt_position_ = SourcePosition::Unknown(); |
| 87 | } |
| 88 | |
| 89 | void FillFunctionInfo(SharedFunctionInfo* shared); |
| 90 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 91 | void SetBuiltinId(Builtins::Name id); |
| 92 | Builtins::Name builtin_id() const { |
| 93 | return BuiltinIdField::decode(bit_field_); |
| 94 | } |
| 95 | |
| 96 | uint32_t GetHash() const; |
| 97 | bool IsSameFunctionAs(CodeEntry* entry) const; |
| 98 | |
| 99 | int GetSourceLine(int pc_offset) const; |
| 100 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 101 | void AddInlineStack(int pc_offset, std::vector<CodeEntry*>& inline_stack); |
| 102 | const std::vector<CodeEntry*>* GetInlineStack(int pc_offset) const; |
| 103 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 104 | void AddDeoptInlinedFrames(int deopt_id, std::vector<DeoptInlinedFrame>&); |
| 105 | bool HasDeoptInlinedFramesFor(int deopt_id) const; |
| 106 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 107 | Address instruction_start() const { return instruction_start_; } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 108 | CodeEventListener::LogEventsAndTags tag() const { |
| 109 | return TagField::decode(bit_field_); |
| 110 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 111 | |
| 112 | static const char* const kEmptyNamePrefix; |
| 113 | static const char* const kEmptyResourceName; |
| 114 | static const char* const kEmptyBailoutReason; |
| 115 | static const char* const kNoDeoptReason; |
| 116 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 117 | static const char* const kProgramEntryName; |
| 118 | static const char* const kIdleEntryName; |
| 119 | static const char* const kGarbageCollectorEntryName; |
| 120 | // Used to represent frames for which we have no reliable way to |
| 121 | // detect function. |
| 122 | static const char* const kUnresolvedFunctionName; |
| 123 | |
| 124 | V8_INLINE static CodeEntry* program_entry() { |
| 125 | return kProgramEntry.Pointer(); |
| 126 | } |
| 127 | V8_INLINE static CodeEntry* idle_entry() { return kIdleEntry.Pointer(); } |
| 128 | V8_INLINE static CodeEntry* gc_entry() { return kGCEntry.Pointer(); } |
| 129 | V8_INLINE static CodeEntry* unresolved_entry() { |
| 130 | return kUnresolvedEntry.Pointer(); |
| 131 | } |
| 132 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 133 | private: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 134 | struct ProgramEntryCreateTrait { |
| 135 | static CodeEntry* Create(); |
| 136 | }; |
| 137 | struct IdleEntryCreateTrait { |
| 138 | static CodeEntry* Create(); |
| 139 | }; |
| 140 | struct GCEntryCreateTrait { |
| 141 | static CodeEntry* Create(); |
| 142 | }; |
| 143 | struct UnresolvedEntryCreateTrait { |
| 144 | static CodeEntry* Create(); |
| 145 | }; |
| 146 | |
| 147 | static base::LazyDynamicInstance<CodeEntry, ProgramEntryCreateTrait>::type |
| 148 | kProgramEntry; |
| 149 | static base::LazyDynamicInstance<CodeEntry, IdleEntryCreateTrait>::type |
| 150 | kIdleEntry; |
| 151 | static base::LazyDynamicInstance<CodeEntry, GCEntryCreateTrait>::type |
| 152 | kGCEntry; |
| 153 | static base::LazyDynamicInstance<CodeEntry, UnresolvedEntryCreateTrait>::type |
| 154 | kUnresolvedEntry; |
| 155 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 156 | class TagField : public BitField<Logger::LogEventsAndTags, 0, 8> {}; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 157 | class BuiltinIdField : public BitField<Builtins::Name, 8, 24> {}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 158 | |
| 159 | uint32_t bit_field_; |
| 160 | const char* name_prefix_; |
| 161 | const char* name_; |
| 162 | const char* resource_name_; |
| 163 | int line_number_; |
| 164 | int column_number_; |
| 165 | int script_id_; |
| 166 | int position_; |
| 167 | const char* bailout_reason_; |
| 168 | const char* deopt_reason_; |
| 169 | SourcePosition deopt_position_; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 170 | int deopt_id_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 171 | JITLineInfoTable* line_info_; |
| 172 | Address instruction_start_; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 173 | // Should be an unordered_map, but it doesn't currently work on Win & MacOS. |
| 174 | std::map<int, std::vector<CodeEntry*>> inline_locations_; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 175 | std::map<int, std::vector<DeoptInlinedFrame>> deopt_inlined_frames_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 176 | |
| 177 | DISALLOW_COPY_AND_ASSIGN(CodeEntry); |
| 178 | }; |
| 179 | |
| 180 | |
| 181 | class ProfileTree; |
| 182 | |
| 183 | class ProfileNode { |
| 184 | public: |
| 185 | inline ProfileNode(ProfileTree* tree, CodeEntry* entry); |
| 186 | |
| 187 | ProfileNode* FindChild(CodeEntry* entry); |
| 188 | ProfileNode* FindOrAddChild(CodeEntry* entry); |
| 189 | void IncrementSelfTicks() { ++self_ticks_; } |
| 190 | void IncreaseSelfTicks(unsigned amount) { self_ticks_ += amount; } |
| 191 | void IncrementLineTicks(int src_line); |
| 192 | |
| 193 | CodeEntry* entry() const { return entry_; } |
| 194 | unsigned self_ticks() const { return self_ticks_; } |
| 195 | const List<ProfileNode*>* children() const { return &children_list_; } |
| 196 | unsigned id() const { return id_; } |
| 197 | unsigned function_id() const; |
| 198 | unsigned int GetHitLineCount() const { return line_ticks_.occupancy(); } |
| 199 | bool GetLineTicks(v8::CpuProfileNode::LineTick* entries, |
| 200 | unsigned int length) const; |
| 201 | void CollectDeoptInfo(CodeEntry* entry); |
| 202 | const std::vector<CpuProfileDeoptInfo>& deopt_infos() const { |
| 203 | return deopt_infos_; |
| 204 | } |
| 205 | Isolate* isolate() const; |
| 206 | |
| 207 | void Print(int indent); |
| 208 | |
| 209 | static bool CodeEntriesMatch(void* entry1, void* entry2) { |
| 210 | return reinterpret_cast<CodeEntry*>(entry1) |
| 211 | ->IsSameFunctionAs(reinterpret_cast<CodeEntry*>(entry2)); |
| 212 | } |
| 213 | |
| 214 | private: |
| 215 | static uint32_t CodeEntryHash(CodeEntry* entry) { return entry->GetHash(); } |
| 216 | |
| 217 | static bool LineTickMatch(void* a, void* b) { return a == b; } |
| 218 | |
| 219 | ProfileTree* tree_; |
| 220 | CodeEntry* entry_; |
| 221 | unsigned self_ticks_; |
| 222 | // Mapping from CodeEntry* to ProfileNode* |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 223 | base::HashMap children_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 224 | List<ProfileNode*> children_list_; |
| 225 | unsigned id_; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 226 | base::HashMap line_ticks_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 227 | |
| 228 | std::vector<CpuProfileDeoptInfo> deopt_infos_; |
| 229 | |
| 230 | DISALLOW_COPY_AND_ASSIGN(ProfileNode); |
| 231 | }; |
| 232 | |
| 233 | |
| 234 | class ProfileTree { |
| 235 | public: |
| 236 | explicit ProfileTree(Isolate* isolate); |
| 237 | ~ProfileTree(); |
| 238 | |
| 239 | ProfileNode* AddPathFromEnd( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 240 | const std::vector<CodeEntry*>& path, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 241 | int src_line = v8::CpuProfileNode::kNoLineNumberInfo, |
| 242 | bool update_stats = true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 243 | ProfileNode* root() const { return root_; } |
| 244 | unsigned next_node_id() { return next_node_id_++; } |
| 245 | unsigned GetFunctionId(const ProfileNode* node); |
| 246 | |
| 247 | void Print() { |
| 248 | root_->Print(0); |
| 249 | } |
| 250 | |
| 251 | Isolate* isolate() const { return isolate_; } |
| 252 | |
| 253 | private: |
| 254 | template <typename Callback> |
| 255 | void TraverseDepthFirst(Callback* callback); |
| 256 | |
| 257 | CodeEntry root_entry_; |
| 258 | unsigned next_node_id_; |
| 259 | ProfileNode* root_; |
| 260 | Isolate* isolate_; |
| 261 | |
| 262 | unsigned next_function_id_; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 263 | base::HashMap function_ids_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 264 | |
| 265 | DISALLOW_COPY_AND_ASSIGN(ProfileTree); |
| 266 | }; |
| 267 | |
| 268 | |
| 269 | class CpuProfile { |
| 270 | public: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 271 | CpuProfile(CpuProfiler* profiler, const char* title, bool record_samples); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 272 | |
| 273 | // Add pc -> ... -> main() call path to the profile. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 274 | void AddPath(base::TimeTicks timestamp, const std::vector<CodeEntry*>& path, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 275 | int src_line, bool update_stats); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 276 | void CalculateTotalTicksAndSamplingRate(); |
| 277 | |
| 278 | const char* title() const { return title_; } |
| 279 | const ProfileTree* top_down() const { return &top_down_; } |
| 280 | |
| 281 | int samples_count() const { return samples_.length(); } |
| 282 | ProfileNode* sample(int index) const { return samples_.at(index); } |
| 283 | base::TimeTicks sample_timestamp(int index) const { |
| 284 | return timestamps_.at(index); |
| 285 | } |
| 286 | |
| 287 | base::TimeTicks start_time() const { return start_time_; } |
| 288 | base::TimeTicks end_time() const { return end_time_; } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 289 | CpuProfiler* cpu_profiler() const { return profiler_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 290 | |
| 291 | void UpdateTicksScale(); |
| 292 | |
| 293 | void Print(); |
| 294 | |
| 295 | private: |
| 296 | const char* title_; |
| 297 | bool record_samples_; |
| 298 | base::TimeTicks start_time_; |
| 299 | base::TimeTicks end_time_; |
| 300 | List<ProfileNode*> samples_; |
| 301 | List<base::TimeTicks> timestamps_; |
| 302 | ProfileTree top_down_; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 303 | CpuProfiler* const profiler_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 304 | |
| 305 | DISALLOW_COPY_AND_ASSIGN(CpuProfile); |
| 306 | }; |
| 307 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 308 | class CodeMap { |
| 309 | public: |
| 310 | CodeMap() {} |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 311 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 312 | void AddCode(Address addr, CodeEntry* entry, unsigned size); |
| 313 | void MoveCode(Address from, Address to); |
| 314 | CodeEntry* FindEntry(Address addr); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 315 | void Print(); |
| 316 | |
| 317 | private: |
| 318 | struct CodeEntryInfo { |
| 319 | CodeEntryInfo(CodeEntry* an_entry, unsigned a_size) |
| 320 | : entry(an_entry), size(a_size) { } |
| 321 | CodeEntry* entry; |
| 322 | unsigned size; |
| 323 | }; |
| 324 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 325 | void DeleteAllCoveredCode(Address start, Address end); |
| 326 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 327 | std::map<Address, CodeEntryInfo> code_map_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 328 | |
| 329 | DISALLOW_COPY_AND_ASSIGN(CodeMap); |
| 330 | }; |
| 331 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 332 | class CpuProfilesCollection { |
| 333 | public: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 334 | explicit CpuProfilesCollection(Isolate* isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 335 | ~CpuProfilesCollection(); |
| 336 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 337 | void set_cpu_profiler(CpuProfiler* profiler) { profiler_ = profiler; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 338 | bool StartProfiling(const char* title, bool record_samples); |
| 339 | CpuProfile* StopProfiling(const char* title); |
| 340 | List<CpuProfile*>* profiles() { return &finished_profiles_; } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 341 | const char* GetName(Name* name) { return resource_names_.GetName(name); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 342 | bool IsLastProfile(const char* title); |
| 343 | void RemoveProfile(CpuProfile* profile); |
| 344 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 345 | // Called from profile generator thread. |
| 346 | void AddPathToCurrentProfiles(base::TimeTicks timestamp, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 347 | const std::vector<CodeEntry*>& path, |
| 348 | int src_line, bool update_stats); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 349 | |
| 350 | // Limits the number of profiles that can be simultaneously collected. |
| 351 | static const int kMaxSimultaneousProfiles = 100; |
| 352 | |
| 353 | private: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 354 | StringsStorage resource_names_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 355 | List<CpuProfile*> finished_profiles_; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 356 | CpuProfiler* profiler_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 357 | |
| 358 | // Accessed by VM thread and profile generator thread. |
| 359 | List<CpuProfile*> current_profiles_; |
| 360 | base::Semaphore current_profiles_semaphore_; |
| 361 | |
| 362 | DISALLOW_COPY_AND_ASSIGN(CpuProfilesCollection); |
| 363 | }; |
| 364 | |
| 365 | |
| 366 | class ProfileGenerator { |
| 367 | public: |
| 368 | explicit ProfileGenerator(CpuProfilesCollection* profiles); |
| 369 | |
| 370 | void RecordTickSample(const TickSample& sample); |
| 371 | |
| 372 | CodeMap* code_map() { return &code_map_; } |
| 373 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 374 | private: |
| 375 | CodeEntry* EntryForVMState(StateTag tag); |
| 376 | |
| 377 | CpuProfilesCollection* profiles_; |
| 378 | CodeMap code_map_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 379 | |
| 380 | DISALLOW_COPY_AND_ASSIGN(ProfileGenerator); |
| 381 | }; |
| 382 | |
| 383 | |
| 384 | } // namespace internal |
| 385 | } // namespace v8 |
| 386 | |
| 387 | #endif // V8_PROFILER_PROFILE_GENERATOR_H_ |