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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 // 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 "src/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #include "src/assembler.h" | 7 #include "src/assembler.h" |
| 8 #include "src/base/once.h" | 8 #include "src/base/once.h" |
| 9 #include "src/base/platform/platform.h" | 9 #include "src/base/platform/platform.h" |
| 10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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| 35 | 35 |
| 36 | 36 |
| 37 bool V8::Initialize(Deserializer* des) { | 37 bool V8::Initialize(Deserializer* des) { |
| 38 InitializeOncePerProcess(); | 38 InitializeOncePerProcess(); |
| 39 Isolate* isolate = Isolate::UncheckedCurrent(); | 39 Isolate* isolate = Isolate::UncheckedCurrent(); |
| 40 if (isolate == NULL) return true; | 40 if (isolate == NULL) return true; |
| 41 if (isolate->IsDead()) return false; | 41 if (isolate->IsDead()) return false; |
| 42 if (isolate->IsInitialized()) return true; | 42 if (isolate->IsInitialized()) return true; |
| 43 | 43 |
| 44 #ifdef V8_USE_DEFAULT_PLATFORM | 44 #ifdef V8_USE_DEFAULT_PLATFORM |
| 45 DefaultPlatform* platform = static_cast<DefaultPlatform*>(platform_); | 45 platform::DefaultPlatform* platform = |
| 46 static_cast<platform::DefaultPlatform*>(platform_); |
| 46 platform->SetThreadPoolSize(isolate->max_available_threads()); | 47 platform->SetThreadPoolSize(isolate->max_available_threads()); |
| 47 // We currently only start the threads early, if we know that we'll use them. | 48 // We currently only start the threads early, if we know that we'll use them. |
| 48 if (FLAG_job_based_sweeping) platform->EnsureInitialized(); | 49 if (FLAG_job_based_sweeping) platform->EnsureInitialized(); |
| 49 #endif | 50 #endif |
| 50 | 51 |
| 51 return isolate->Init(des); | 52 return isolate->Init(des); |
| 52 } | 53 } |
| 53 | 54 |
| 54 | 55 |
| 55 void V8::TearDown() { | 56 void V8::TearDown() { |
| 56 Bootstrapper::TearDownExtensions(); | 57 Bootstrapper::TearDownExtensions(); |
| 57 ElementsAccessor::TearDown(); | 58 ElementsAccessor::TearDown(); |
| 58 LOperand::TearDownCaches(); | 59 LOperand::TearDownCaches(); |
| 59 ExternalReference::TearDownMathExpData(); | 60 ExternalReference::TearDownMathExpData(); |
| 60 RegisteredExtension::UnregisterAll(); | 61 RegisteredExtension::UnregisterAll(); |
| 61 Isolate::GlobalTearDown(); | 62 Isolate::GlobalTearDown(); |
| 62 | 63 |
| 63 Sampler::TearDown(); | 64 Sampler::TearDown(); |
| 64 | 65 |
| 65 #ifdef V8_USE_DEFAULT_PLATFORM | 66 #ifdef V8_USE_DEFAULT_PLATFORM |
| 66 DefaultPlatform* platform = static_cast<DefaultPlatform*>(platform_); | 67 platform::DefaultPlatform* platform = |
| 68 static_cast<platform::DefaultPlatform*>(platform_); |
| 67 platform_ = NULL; | 69 platform_ = NULL; |
| 68 delete platform; | 70 delete platform; |
| 69 #endif | 71 #endif |
| 70 } | 72 } |
| 71 | 73 |
| 72 | 74 |
| 73 void V8::SetReturnAddressLocationResolver( | 75 void V8::SetReturnAddressLocationResolver( |
| 74 ReturnAddressLocationResolver resolver) { | 76 ReturnAddressLocationResolver resolver) { |
| 75 StackFrame::SetReturnAddressLocationResolver(resolver); | 77 StackFrame::SetReturnAddressLocationResolver(resolver); |
| 76 } | 78 } |
| 77 | 79 |
| 78 | 80 |
| 79 void V8::InitializeOncePerProcessImpl() { | 81 void V8::InitializeOncePerProcessImpl() { |
| 80 FlagList::EnforceFlagImplications(); | 82 FlagList::EnforceFlagImplications(); |
| 81 | 83 |
| 82 if (FLAG_predictable && FLAG_random_seed == 0) { | 84 if (FLAG_predictable && FLAG_random_seed == 0) { |
| 83 // Avoid random seeds in predictable mode. | 85 // Avoid random seeds in predictable mode. |
| 84 FLAG_random_seed = 12347; | 86 FLAG_random_seed = 12347; |
| 85 } | 87 } |
| 86 | 88 |
| 87 if (FLAG_stress_compaction) { | 89 if (FLAG_stress_compaction) { |
| 88 FLAG_force_marking_deque_overflows = true; | 90 FLAG_force_marking_deque_overflows = true; |
| 89 FLAG_gc_global = true; | 91 FLAG_gc_global = true; |
| 90 FLAG_max_semi_space_size = 1; | 92 FLAG_max_semi_space_size = 1; |
| 91 } | 93 } |
| 92 | 94 |
| 93 base::OS::Initialize(FLAG_random_seed, FLAG_hard_abort, FLAG_gc_fake_mmap); | 95 base::OS::Initialize(FLAG_random_seed, FLAG_hard_abort, FLAG_gc_fake_mmap); |
| 94 | 96 |
| 95 #ifdef V8_USE_DEFAULT_PLATFORM | 97 #ifdef V8_USE_DEFAULT_PLATFORM |
| 96 platform_ = new DefaultPlatform; | 98 platform_ = new platform::DefaultPlatform; |
| 97 #endif | 99 #endif |
| 98 Sampler::SetUp(); | 100 Sampler::SetUp(); |
| 99 CpuFeatures::Probe(false); | 101 CpuFeatures::Probe(false); |
| 100 init_memcopy_functions(); | 102 init_memcopy_functions(); |
| 101 // The custom exp implementation needs 16KB of lookup data; initialize it | 103 // The custom exp implementation needs 16KB of lookup data; initialize it |
| 102 // on demand. | 104 // on demand. |
| 103 init_fast_sqrt_function(); | 105 init_fast_sqrt_function(); |
| 104 #ifdef _WIN64 | 106 #ifdef _WIN64 |
| 105 init_modulo_function(); | 107 init_modulo_function(); |
| 106 #endif | 108 #endif |
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| 129 platform_ = NULL; | 131 platform_ = NULL; |
| 130 } | 132 } |
| 131 | 133 |
| 132 | 134 |
| 133 v8::Platform* V8::GetCurrentPlatform() { | 135 v8::Platform* V8::GetCurrentPlatform() { |
| 134 ASSERT(platform_); | 136 ASSERT(platform_); |
| 135 return platform_; | 137 return platform_; |
| 136 } | 138 } |
| 137 | 139 |
| 138 } } // namespace v8::internal | 140 } } // namespace v8::internal |
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