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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/heap/heap.h" | 5 #include "src/heap/heap.h" |
6 | 6 |
7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
8 #include "src/api.h" | 8 #include "src/api.h" |
9 #include "src/assembler-inl.h" | 9 #include "src/assembler-inl.h" |
10 #include "src/ast/context-slot-cache.h" | 10 #include "src/ast/context-slot-cache.h" |
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2616 set_js_construct_entry_code(*stub.GetCode()); | 2616 set_js_construct_entry_code(*stub.GetCode()); |
2617 } | 2617 } |
2618 | 2618 |
2619 | 2619 |
2620 void Heap::CreateFixedStubs() { | 2620 void Heap::CreateFixedStubs() { |
2621 // Here we create roots for fixed stubs. They are needed at GC | 2621 // Here we create roots for fixed stubs. They are needed at GC |
2622 // for cooking and uncooking (check out frames.cc). | 2622 // for cooking and uncooking (check out frames.cc). |
2623 // The eliminates the need for doing dictionary lookup in the | 2623 // The eliminates the need for doing dictionary lookup in the |
2624 // stub cache for these stubs. | 2624 // stub cache for these stubs. |
2625 HandleScope scope(isolate()); | 2625 HandleScope scope(isolate()); |
2626 // Canonicalize handles, so that we can share constant pool entries pointing | |
2627 // to code targets without dereferencing their handles. | |
2628 CanonicalHandleScope canonical(isolate()); | |
2629 | 2626 |
2630 // Create stubs that should be there, so we don't unexpectedly have to | 2627 // Create stubs that should be there, so we don't unexpectedly have to |
2631 // create them if we need them during the creation of another stub. | 2628 // create them if we need them during the creation of another stub. |
2632 // Stub creation mixes raw pointers and handles in an unsafe manner so | 2629 // Stub creation mixes raw pointers and handles in an unsafe manner so |
2633 // we cannot create stubs while we are creating stubs. | 2630 // we cannot create stubs while we are creating stubs. |
2634 CodeStub::GenerateStubsAheadOfTime(isolate()); | 2631 CodeStub::GenerateStubsAheadOfTime(isolate()); |
2635 | 2632 |
2636 // MacroAssembler::Abort calls (usually enabled with --debug-code) depend on | 2633 // MacroAssembler::Abort calls (usually enabled with --debug-code) depend on |
2637 // CEntryStub, so we need to call GenerateStubsAheadOfTime before JSEntryStub | 2634 // CEntryStub, so we need to call GenerateStubsAheadOfTime before JSEntryStub |
2638 // is created. | 2635 // is created. |
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6531 case LO_SPACE: | 6528 case LO_SPACE: |
6532 return "LO_SPACE"; | 6529 return "LO_SPACE"; |
6533 default: | 6530 default: |
6534 UNREACHABLE(); | 6531 UNREACHABLE(); |
6535 } | 6532 } |
6536 return NULL; | 6533 return NULL; |
6537 } | 6534 } |
6538 | 6535 |
6539 } // namespace internal | 6536 } // namespace internal |
6540 } // namespace v8 | 6537 } // namespace v8 |
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