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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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9703 CONVERT_LANGUAGE_MODE_ARG(language_mode, 3); | 9703 CONVERT_LANGUAGE_MODE_ARG(language_mode, 3); |
9704 ASSERT(args[4]->IsSmi()); | 9704 ASSERT(args[4]->IsSmi()); |
9705 return CompileGlobalEval(isolate, | 9705 return CompileGlobalEval(isolate, |
9706 args.at<String>(1), | 9706 args.at<String>(1), |
9707 args.at<Object>(2), | 9707 args.at<Object>(2), |
9708 language_mode, | 9708 language_mode, |
9709 args.smi_at(4)); | 9709 args.smi_at(4)); |
9710 } | 9710 } |
9711 | 9711 |
9712 | 9712 |
| 9713 // Allocate a block of memory in the given space (filled with a filler). |
| 9714 // Used as a fall-back for generated code when the space is full. |
9713 static MaybeObject* Allocate(Isolate* isolate, | 9715 static MaybeObject* Allocate(Isolate* isolate, |
9714 int size, | 9716 int size, |
9715 AllocationSpace space) { | 9717 AllocationSpace space) { |
9716 // Allocate a block of memory in the given space (filled with a filler). | 9718 Heap* heap = isolate->heap(); |
9717 // Use as fallback for allocation in generated code when the space | |
9718 // is full. | |
9719 SealHandleScope shs(isolate); | |
9720 RUNTIME_ASSERT(IsAligned(size, kPointerSize)); | 9719 RUNTIME_ASSERT(IsAligned(size, kPointerSize)); |
9721 RUNTIME_ASSERT(size > 0); | 9720 RUNTIME_ASSERT(size > 0); |
9722 Heap* heap = isolate->heap(); | |
9723 RUNTIME_ASSERT(size <= heap->MaxRegularSpaceAllocationSize()); | 9721 RUNTIME_ASSERT(size <= heap->MaxRegularSpaceAllocationSize()); |
9724 Object* allocation; | 9722 HeapObject* allocation; |
9725 { MaybeObject* maybe_allocation; | 9723 { MaybeObject* maybe_allocation = heap->AllocateRaw(size, space, space); |
9726 if (space == NEW_SPACE) { | 9724 if (!maybe_allocation->To(&allocation)) return maybe_allocation; |
9727 maybe_allocation = heap->new_space()->AllocateRaw(size); | |
9728 } else { | |
9729 ASSERT(space == OLD_POINTER_SPACE || space == OLD_DATA_SPACE); | |
9730 maybe_allocation = heap->paged_space(space)->AllocateRaw(size); | |
9731 } | |
9732 if (maybe_allocation->ToObject(&allocation)) { | |
9733 heap->CreateFillerObjectAt(HeapObject::cast(allocation)->address(), size); | |
9734 } | |
9735 return maybe_allocation; | |
9736 } | 9725 } |
| 9726 #ifdef DEBUG |
| 9727 MemoryChunk* chunk = MemoryChunk::FromAddress(allocation->address()); |
| 9728 ASSERT(chunk->owner()->identity() == space); |
| 9729 #endif |
| 9730 heap->CreateFillerObjectAt(allocation->address(), size); |
| 9731 return allocation; |
9737 } | 9732 } |
9738 | 9733 |
9739 | 9734 |
9740 RUNTIME_FUNCTION(MaybeObject*, Runtime_AllocateInNewSpace) { | 9735 RUNTIME_FUNCTION(MaybeObject*, Runtime_AllocateInNewSpace) { |
9741 SealHandleScope shs(isolate); | 9736 SealHandleScope shs(isolate); |
9742 ASSERT(args.length() == 1); | 9737 ASSERT(args.length() == 1); |
9743 CONVERT_ARG_HANDLE_CHECKED(Smi, size_smi, 0); | 9738 CONVERT_ARG_HANDLE_CHECKED(Smi, size_smi, 0); |
9744 return Allocate(isolate, size_smi->value(), NEW_SPACE); | 9739 return Allocate(isolate, size_smi->value(), NEW_SPACE); |
9745 } | 9740 } |
9746 | 9741 |
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14810 // Handle last resort GC and make sure to allow future allocations | 14805 // Handle last resort GC and make sure to allow future allocations |
14811 // to grow the heap without causing GCs (if possible). | 14806 // to grow the heap without causing GCs (if possible). |
14812 isolate->counters()->gc_last_resort_from_js()->Increment(); | 14807 isolate->counters()->gc_last_resort_from_js()->Increment(); |
14813 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 14808 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
14814 "Runtime::PerformGC"); | 14809 "Runtime::PerformGC"); |
14815 } | 14810 } |
14816 } | 14811 } |
14817 | 14812 |
14818 | 14813 |
14819 } } // namespace v8::internal | 14814 } } // namespace v8::internal |
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