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Issue 77773004: Build fix. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years ago
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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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2627 isolate->counters()->contexts_created_from_scratch()->Increment(); 2627 isolate->counters()->contexts_created_from_scratch()->Increment();
2628 } 2628 }
2629 2629
2630 // Initialize experimental globals and install experimental natives. 2630 // Initialize experimental globals and install experimental natives.
2631 InitializeExperimentalGlobal(); 2631 InitializeExperimentalGlobal();
2632 if (!InstallExperimentalNatives()) return; 2632 if (!InstallExperimentalNatives()) return;
2633 2633
2634 // We can't (de-)serialize typed arrays currently, but we are lucky: The state 2634 // We can't (de-)serialize typed arrays currently, but we are lucky: The state
2635 // of the random number generator needs no initialization during snapshot 2635 // of the random number generator needs no initialization during snapshot
2636 // creation time. 2636 // creation time.
2637 uint32_t* state = NULL;
2637 if (!Serializer::enabled()) { 2638 if (!Serializer::enabled()) {
2638 // Initially seed the per-context random number generator using the 2639 // Initially seed the per-context random number generator using the
2639 // per-isolate random number generator. 2640 // per-isolate random number generator.
2640 const int num_elems = 2; 2641 const int num_elems = 2;
2641 uint32_t* state = new uint32_t[num_elems]; 2642 state = new uint32_t[num_elems];
2642 const int num_bytes = num_elems * sizeof(*state); 2643 const int num_bytes = num_elems * sizeof(*state);
2643 // We have to delete the state when the context dies, so we remember it in
2644 // the context (encoded as a Smi, our usual technique for aligned pointers)
2645 // and do the cleanup in WeakListVisitor<Context>::VisitPhantomObject().
2646 // This hack can go away when we have a way to allocate the backing store of
2647 // typed arrays on the heap.
2648 native_context()->set_random_state(reinterpret_cast<Smi*>(state));
2649 ASSERT(native_context()->random_state()->IsSmi());
2650 2644
2651 do { 2645 do {
2652 isolate->random_number_generator()->NextBytes(state, num_bytes); 2646 isolate->random_number_generator()->NextBytes(state, num_bytes);
2653 } while (state[0] == 0 || state[1] == 0); 2647 } while (state[0] == 0 || state[1] == 0);
2654 2648
2655 v8::Local<v8::ArrayBuffer> buffer = v8::ArrayBuffer::New(state, num_bytes); 2649 v8::Local<v8::ArrayBuffer> buffer = v8::ArrayBuffer::New(state, num_bytes);
2656 v8::Local<v8::Uint32Array> ta = v8::Uint32Array::New(buffer, 0, num_elems); 2650 v8::Local<v8::Uint32Array> ta = v8::Uint32Array::New(buffer, 0, num_elems);
2657 Handle<JSBuiltinsObject> builtins(native_context()->builtins()); 2651 Handle<JSBuiltinsObject> builtins(native_context()->builtins());
2658 ForceSetProperty(builtins, 2652 ForceSetProperty(builtins,
2659 factory()->InternalizeOneByteString( 2653 factory()->InternalizeOneByteString(
2660 STATIC_ASCII_VECTOR("rngstate")), 2654 STATIC_ASCII_VECTOR("rngstate")),
2661 Utils::OpenHandle(*ta), 2655 Utils::OpenHandle(*ta),
2662 NONE); 2656 NONE);
2663 } 2657 }
2658 // TODO(svenpanne) We have to delete the state when the context dies, so we
2659 // remember it in the context (encoded as a Smi, our usual technique for
2660 // aligned pointers) and do the cleanup in
2661 // WeakListVisitor<Context>::VisitPhantomObject(). This hack can go away when
2662 // we have a way to allocate the backing store of typed arrays on the heap.
2663 ASSERT(reinterpret_cast<Smi*>(state)->IsSmi());
2664 native_context()->set_random_state(reinterpret_cast<Smi*>(state));
2664 2665
2665 result_ = native_context(); 2666 result_ = native_context();
2666 } 2667 }
2667 2668
2668 2669
2669 // Support for thread preemption. 2670 // Support for thread preemption.
2670 2671
2671 // Reserve space for statics needing saving and restoring. 2672 // Reserve space for statics needing saving and restoring.
2672 int Bootstrapper::ArchiveSpacePerThread() { 2673 int Bootstrapper::ArchiveSpacePerThread() {
2673 return sizeof(NestingCounterType); 2674 return sizeof(NestingCounterType);
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2688 return from + sizeof(NestingCounterType); 2689 return from + sizeof(NestingCounterType);
2689 } 2690 }
2690 2691
2691 2692
2692 // Called when the top-level V8 mutex is destroyed. 2693 // Called when the top-level V8 mutex is destroyed.
2693 void Bootstrapper::FreeThreadResources() { 2694 void Bootstrapper::FreeThreadResources() {
2694 ASSERT(!IsActive()); 2695 ASSERT(!IsActive());
2695 } 2696 }
2696 2697
2697 } } // namespace v8::internal 2698 } } // namespace v8::internal
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