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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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| 506 // TODO(vitalyr): the assembler does not need an isolate. | 506 // TODO(vitalyr): the assembler does not need an isolate. |
| 507 Assembler(Isolate* isolate, void* buffer, int buffer_size); | 507 Assembler(Isolate* isolate, void* buffer, int buffer_size); |
| 508 virtual ~Assembler() { } | 508 virtual ~Assembler() { } |
| 509 | 509 |
| 510 // GetCode emits any pending (non-emitted) code and fills the descriptor | 510 // GetCode emits any pending (non-emitted) code and fills the descriptor |
| 511 // desc. GetCode() is idempotent; it returns the same result if no other | 511 // desc. GetCode() is idempotent; it returns the same result if no other |
| 512 // Assembler functions are invoked in between GetCode() calls. | 512 // Assembler functions are invoked in between GetCode() calls. |
| 513 void GetCode(CodeDesc* desc); | 513 void GetCode(CodeDesc* desc); |
| 514 | 514 |
| 515 // Read/Modify the code target in the branch/call instruction at pc. | 515 // Read/Modify the code target in the branch/call instruction at pc. |
| 516 inline static Address target_address_at(Address pc, | 516 inline static Address target_address_at(Address pc, Address constant_pool); |
| 517 ConstantPoolArray* constant_pool); | 517 inline static void set_target_address_at( |
| 518 inline static void set_target_address_at(Address pc, | 518 Address pc, Address constant_pool, Address target, |
| 519 ConstantPoolArray* constant_pool, | 519 ICacheFlushMode icache_flush_mode = FLUSH_ICACHE_IF_NEEDED); |
| 520 Address target, | |
| 521 ICacheFlushMode icache_flush_mode = | |
| 522 FLUSH_ICACHE_IF_NEEDED); | |
| 523 static inline Address target_address_at(Address pc, Code* code) { | 520 static inline Address target_address_at(Address pc, Code* code) { |
| 524 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL; | 521 Address constant_pool = code ? code->constant_pool() : NULL; |
| 525 return target_address_at(pc, constant_pool); | 522 return target_address_at(pc, constant_pool); |
| 526 } | 523 } |
| 527 static inline void set_target_address_at(Address pc, | 524 static inline void set_target_address_at(Address pc, |
| 528 Code* code, | 525 Code* code, |
| 529 Address target, | 526 Address target, |
| 530 ICacheFlushMode icache_flush_mode = | 527 ICacheFlushMode icache_flush_mode = |
| 531 FLUSH_ICACHE_IF_NEEDED) { | 528 FLUSH_ICACHE_IF_NEEDED) { |
| 532 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL; | 529 Address constant_pool = code ? code->constant_pool() : NULL; |
| 533 set_target_address_at(pc, constant_pool, target); | 530 set_target_address_at(pc, constant_pool, target); |
| 534 } | 531 } |
| 535 | 532 |
| 536 // Return the code target address at a call site from the return address | 533 // Return the code target address at a call site from the return address |
| 537 // of that call in the instruction stream. | 534 // of that call in the instruction stream. |
| 538 inline static Address target_address_from_return_address(Address pc); | 535 inline static Address target_address_from_return_address(Address pc); |
| 539 | 536 |
| 540 // Return the code target address of the patch debug break slot | 537 // Return the code target address of the patch debug break slot |
| 541 inline static Address break_address_from_return_address(Address pc); | 538 inline static Address break_address_from_return_address(Address pc); |
| 542 | 539 |
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| 1439 private: | 1436 private: |
| 1440 Assembler* assembler_; | 1437 Assembler* assembler_; |
| 1441 #ifdef DEBUG | 1438 #ifdef DEBUG |
| 1442 int space_before_; | 1439 int space_before_; |
| 1443 #endif | 1440 #endif |
| 1444 }; | 1441 }; |
| 1445 | 1442 |
| 1446 } } // namespace v8::internal | 1443 } } // namespace v8::internal |
| 1447 | 1444 |
| 1448 #endif // V8_IA32_ASSEMBLER_IA32_H_ | 1445 #endif // V8_IA32_ASSEMBLER_IA32_H_ |
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