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Issue 17162002: Version 3.19.17. (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 7 years, 6 months 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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578 578
579 // Trampoline stub to call into native code. To call safely into native code 579 // Trampoline stub to call into native code. To call safely into native code
580 // in the presence of compacting GC (which can move code objects) we need to 580 // in the presence of compacting GC (which can move code objects) we need to
581 // keep the code which called into native pinned in the memory. Currently the 581 // keep the code which called into native pinned in the memory. Currently the
582 // simplest approach is to generate such stub early enough so it can never be 582 // simplest approach is to generate such stub early enough so it can never be
583 // moved by GC 583 // moved by GC
584 class DirectCEntryStub: public PlatformCodeStub { 584 class DirectCEntryStub: public PlatformCodeStub {
585 public: 585 public:
586 DirectCEntryStub() {} 586 DirectCEntryStub() {}
587 void Generate(MacroAssembler* masm); 587 void Generate(MacroAssembler* masm);
588 void GenerateCall(MacroAssembler* masm, ExternalReference function);
588 void GenerateCall(MacroAssembler* masm, Register target); 589 void GenerateCall(MacroAssembler* masm, Register target);
589 590
590 private: 591 private:
591 Major MajorKey() { return DirectCEntry; } 592 Major MajorKey() { return DirectCEntry; }
592 int MinorKey() { return 0; } 593 int MinorKey() { return 0; }
593 594
594 bool NeedsImmovableCode() { return true; } 595 bool NeedsImmovableCode() { return true; }
595 }; 596 };
596 597
597 598
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641 642
642 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; 643 class LookupModeBits: public BitField<LookupMode, 0, 1> {};
643 644
644 LookupMode mode_; 645 LookupMode mode_;
645 }; 646 };
646 647
647 648
648 } } // namespace v8::internal 649 } } // namespace v8::internal
649 650
650 #endif // V8_ARM_CODE_STUBS_ARM_H_ 651 #endif // V8_ARM_CODE_STUBS_ARM_H_
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