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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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489 // TODO(vitalyr): the assembler does not need an isolate. | 489 // TODO(vitalyr): the assembler does not need an isolate. |
490 Assembler(Isolate* isolate, void* buffer, int buffer_size); | 490 Assembler(Isolate* isolate, void* buffer, int buffer_size); |
491 virtual ~Assembler() { } | 491 virtual ~Assembler() { } |
492 | 492 |
493 // GetCode emits any pending (non-emitted) code and fills the descriptor | 493 // GetCode emits any pending (non-emitted) code and fills the descriptor |
494 // desc. GetCode() is idempotent; it returns the same result if no other | 494 // desc. GetCode() is idempotent; it returns the same result if no other |
495 // Assembler functions are invoked in between GetCode() calls. | 495 // Assembler functions are invoked in between GetCode() calls. |
496 void GetCode(CodeDesc* desc); | 496 void GetCode(CodeDesc* desc); |
497 | 497 |
498 // Read/Modify the code target in the branch/call instruction at pc. | 498 // Read/Modify the code target in the branch/call instruction at pc. |
499 inline static Address target_address_at(Address pc, | 499 inline static Address target_address_at(Address pc, Address constant_pool); |
500 ConstantPoolArray* constant_pool); | 500 inline static void set_target_address_at( |
501 inline static void set_target_address_at(Address pc, | 501 Address pc, Address constant_pool, Address target, |
502 ConstantPoolArray* constant_pool, | 502 ICacheFlushMode icache_flush_mode = FLUSH_ICACHE_IF_NEEDED); |
503 Address target, | |
504 ICacheFlushMode icache_flush_mode = | |
505 FLUSH_ICACHE_IF_NEEDED); | |
506 static inline Address target_address_at(Address pc, Code* code) { | 503 static inline Address target_address_at(Address pc, Code* code) { |
507 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL; | 504 Address constant_pool = code ? code->constant_pool() : NULL; |
508 return target_address_at(pc, constant_pool); | 505 return target_address_at(pc, constant_pool); |
509 } | 506 } |
510 static inline void set_target_address_at(Address pc, | 507 static inline void set_target_address_at(Address pc, |
511 Code* code, | 508 Code* code, |
512 Address target, | 509 Address target, |
513 ICacheFlushMode icache_flush_mode = | 510 ICacheFlushMode icache_flush_mode = |
514 FLUSH_ICACHE_IF_NEEDED) { | 511 FLUSH_ICACHE_IF_NEEDED) { |
515 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL; | 512 Address constant_pool = code ? code->constant_pool() : NULL; |
516 set_target_address_at(pc, constant_pool, target); | 513 set_target_address_at(pc, constant_pool, target); |
517 } | 514 } |
518 | 515 |
519 // Return the code target address at a call site from the return address | 516 // Return the code target address at a call site from the return address |
520 // of that call in the instruction stream. | 517 // of that call in the instruction stream. |
521 inline static Address target_address_from_return_address(Address pc); | 518 inline static Address target_address_from_return_address(Address pc); |
522 | 519 |
523 // Return the code target address of the patch debug break slot | 520 // Return the code target address of the patch debug break slot |
524 inline static Address break_address_from_return_address(Address pc); | 521 inline static Address break_address_from_return_address(Address pc); |
525 | 522 |
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1080 private: | 1077 private: |
1081 Assembler* assembler_; | 1078 Assembler* assembler_; |
1082 #ifdef DEBUG | 1079 #ifdef DEBUG |
1083 int space_before_; | 1080 int space_before_; |
1084 #endif | 1081 #endif |
1085 }; | 1082 }; |
1086 | 1083 |
1087 } } // namespace v8::internal | 1084 } } // namespace v8::internal |
1088 | 1085 |
1089 #endif // V8_X87_ASSEMBLER_X87_H_ | 1086 #endif // V8_X87_ASSEMBLER_X87_H_ |
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