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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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2568 // Before creating the roots we must save the context and restore it | 2568 // Before creating the roots we must save the context and restore it |
2569 // on all function exits. | 2569 // on all function exits. |
2570 SaveContext saved_context(isolate); | 2570 SaveContext saved_context(isolate); |
2571 | 2571 |
2572 // During genesis, the boilerplate for stack overflow won't work until the | 2572 // During genesis, the boilerplate for stack overflow won't work until the |
2573 // environment has been at least partially initialized. Add a stack check | 2573 // environment has been at least partially initialized. Add a stack check |
2574 // before entering JS code to catch overflow early. | 2574 // before entering JS code to catch overflow early. |
2575 StackLimitCheck check(isolate); | 2575 StackLimitCheck check(isolate); |
2576 if (check.HasOverflowed()) return; | 2576 if (check.HasOverflowed()) return; |
2577 | 2577 |
2578 // We can only de-serialize a context if the isolate was initialized from | 2578 native_context_ = Snapshot::NewContextFromSnapshot(); |
2579 // a snapshot. Otherwise we have to build the context from scratch. | |
2580 if (isolate->initialized_from_snapshot()) { | |
2581 native_context_ = Snapshot::NewContextFromSnapshot(); | |
2582 } else { | |
2583 native_context_ = Handle<Context>(); | |
2584 } | |
2585 | |
2586 if (!native_context().is_null()) { | 2579 if (!native_context().is_null()) { |
2587 AddToWeakNativeContextList(*native_context()); | 2580 AddToWeakNativeContextList(*native_context()); |
2588 isolate->set_context(*native_context()); | 2581 isolate->set_context(*native_context()); |
2589 isolate->counters()->contexts_created_by_snapshot()->Increment(); | 2582 isolate->counters()->contexts_created_by_snapshot()->Increment(); |
2590 Handle<GlobalObject> inner_global; | 2583 Handle<GlobalObject> inner_global; |
2591 Handle<JSGlobalProxy> global_proxy = | 2584 Handle<JSGlobalProxy> global_proxy = |
2592 CreateNewGlobals(global_template, | 2585 CreateNewGlobals(global_template, |
2593 global_object, | 2586 global_object, |
2594 &inner_global); | 2587 &inner_global); |
2595 | 2588 |
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2647 return from + sizeof(NestingCounterType); | 2640 return from + sizeof(NestingCounterType); |
2648 } | 2641 } |
2649 | 2642 |
2650 | 2643 |
2651 // Called when the top-level V8 mutex is destroyed. | 2644 // Called when the top-level V8 mutex is destroyed. |
2652 void Bootstrapper::FreeThreadResources() { | 2645 void Bootstrapper::FreeThreadResources() { |
2653 ASSERT(!IsActive()); | 2646 ASSERT(!IsActive()); |
2654 } | 2647 } |
2655 | 2648 |
2656 } } // namespace v8::internal | 2649 } } // namespace v8::internal |
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