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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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56 bool V8::has_fatal_error_ = false; | 56 bool V8::has_fatal_error_ = false; |
57 bool V8::use_crankshaft_ = true; | 57 bool V8::use_crankshaft_ = true; |
58 List<CallCompletedCallback>* V8::call_completed_callbacks_ = NULL; | 58 List<CallCompletedCallback>* V8::call_completed_callbacks_ = NULL; |
59 | 59 |
60 static LazyMutex entropy_mutex = LAZY_MUTEX_INITIALIZER; | 60 static LazyMutex entropy_mutex = LAZY_MUTEX_INITIALIZER; |
61 | 61 |
62 static EntropySource entropy_source; | 62 static EntropySource entropy_source; |
63 | 63 |
64 | 64 |
65 bool V8::Initialize(Deserializer* des) { | 65 bool V8::Initialize(Deserializer* des) { |
66 FlagList::EnforceFlagImplications(); | |
67 | |
68 InitializeOncePerProcess(); | 66 InitializeOncePerProcess(); |
69 | 67 |
70 // The current thread may not yet had entered an isolate to run. | 68 // The current thread may not yet had entered an isolate to run. |
71 // Note the Isolate::Current() may be non-null because for various | 69 // Note the Isolate::Current() may be non-null because for various |
72 // initialization purposes an initializing thread may be assigned an isolate | 70 // initialization purposes an initializing thread may be assigned an isolate |
73 // but not actually enter it. | 71 // but not actually enter it. |
74 if (i::Isolate::CurrentPerIsolateThreadData() == NULL) { | 72 if (i::Isolate::CurrentPerIsolateThreadData() == NULL) { |
75 i::Isolate::EnterDefaultIsolate(); | 73 i::Isolate::EnterDefaultIsolate(); |
76 } | 74 } |
77 | 75 |
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256 static const double binary_million = 1048576.0; | 254 static const double binary_million = 1048576.0; |
257 r.double_value = binary_million; | 255 r.double_value = binary_million; |
258 r.uint64_t_value |= random_bits; | 256 r.uint64_t_value |= random_bits; |
259 r.double_value -= binary_million; | 257 r.double_value -= binary_million; |
260 | 258 |
261 HeapNumber::cast(heap_number)->set_value(r.double_value); | 259 HeapNumber::cast(heap_number)->set_value(r.double_value); |
262 return heap_number; | 260 return heap_number; |
263 } | 261 } |
264 | 262 |
265 void V8::InitializeOncePerProcessImpl() { | 263 void V8::InitializeOncePerProcessImpl() { |
266 OS::SetUp(); | 264 FlagList::EnforceFlagImplications(); |
267 | |
268 use_crankshaft_ = FLAG_crankshaft; | |
269 | |
270 if (Serializer::enabled()) { | |
271 use_crankshaft_ = false; | |
272 } | |
273 | |
274 CPU::SetUp(); | |
275 if (!CPU::SupportsCrankshaft()) { | |
276 use_crankshaft_ = false; | |
277 } | |
278 | |
279 OS::PostSetUp(); | |
280 | |
281 RuntimeProfiler::GlobalSetUp(); | |
282 | |
283 ElementsAccessor::InitializeOncePerProcess(); | |
284 | |
285 if (FLAG_stress_compaction) { | 265 if (FLAG_stress_compaction) { |
286 FLAG_force_marking_deque_overflows = true; | 266 FLAG_force_marking_deque_overflows = true; |
287 FLAG_gc_global = true; | 267 FLAG_gc_global = true; |
288 FLAG_max_new_space_size = (1 << (kPageSizeBits - 10)) * 2; | 268 FLAG_max_new_space_size = (1 << (kPageSizeBits - 10)) * 2; |
289 } | 269 } |
290 | 270 OS::SetUp(); |
| 271 CPU::SetUp(); |
| 272 use_crankshaft_ = FLAG_crankshaft |
| 273 && !Serializer::enabled() |
| 274 && CPU::SupportsCrankshaft(); |
| 275 OS::PostSetUp(); |
| 276 RuntimeProfiler::GlobalSetUp(); |
| 277 ElementsAccessor::InitializeOncePerProcess(); |
291 LOperand::SetUpCaches(); | 278 LOperand::SetUpCaches(); |
292 SetUpJSCallerSavedCodeData(); | 279 SetUpJSCallerSavedCodeData(); |
293 SamplerRegistry::SetUp(); | 280 SamplerRegistry::SetUp(); |
294 ExternalReference::SetUp(); | 281 ExternalReference::SetUp(); |
295 } | 282 } |
296 | 283 |
297 void V8::InitializeOncePerProcess() { | 284 void V8::InitializeOncePerProcess() { |
298 CallOnce(&init_once, &InitializeOncePerProcessImpl); | 285 CallOnce(&init_once, &InitializeOncePerProcessImpl); |
299 } | 286 } |
300 | 287 |
301 } } // namespace v8::internal | 288 } } // namespace v8::internal |
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