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Side by Side Diff: src/ia32/assembler-ia32.h

Issue 195983002: Reland "Pass a Code object to Assembler::(set_)target_address_at for use by ool constant pool." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix ia32 and x64 bug/ Created 6 years, 9 months ago
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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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617 // TODO(vitalyr): the assembler does not need an isolate. 617 // TODO(vitalyr): the assembler does not need an isolate.
618 Assembler(Isolate* isolate, void* buffer, int buffer_size); 618 Assembler(Isolate* isolate, void* buffer, int buffer_size);
619 virtual ~Assembler() { } 619 virtual ~Assembler() { }
620 620
621 // GetCode emits any pending (non-emitted) code and fills the descriptor 621 // GetCode emits any pending (non-emitted) code and fills the descriptor
622 // desc. GetCode() is idempotent; it returns the same result if no other 622 // desc. GetCode() is idempotent; it returns the same result if no other
623 // Assembler functions are invoked in between GetCode() calls. 623 // Assembler functions are invoked in between GetCode() calls.
624 void GetCode(CodeDesc* desc); 624 void GetCode(CodeDesc* desc);
625 625
626 // Read/Modify the code target in the branch/call instruction at pc. 626 // Read/Modify the code target in the branch/call instruction at pc.
627 inline static Address target_address_at(Address pc); 627 inline static Address target_address_at(Address pc,
628 inline static void set_target_address_at(Address pc, Address target); 628 ConstantPoolArray* constant_pool);
629 inline static void set_target_address_at(Address pc,
630 ConstantPoolArray* constant_pool,
631 Address target);
632 static inline Address target_address_at(Address pc, Code* code) {
633 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL;
634 return target_address_at(pc, constant_pool);
635 }
636 static inline void set_target_address_at(Address pc,
637 Code* code,
638 Address target) {
639 ConstantPoolArray* constant_pool = code ? code->constant_pool() : NULL;
640 set_target_address_at(pc, constant_pool, target);
641 }
629 642
630 // Return the code target address at a call site from the return address 643 // Return the code target address at a call site from the return address
631 // of that call in the instruction stream. 644 // of that call in the instruction stream.
632 inline static Address target_address_from_return_address(Address pc); 645 inline static Address target_address_from_return_address(Address pc);
633 646
634 // This sets the branch destination (which is in the instruction on x86). 647 // This sets the branch destination (which is in the instruction on x86).
635 // This is for calls and branches within generated code. 648 // This is for calls and branches within generated code.
636 inline static void deserialization_set_special_target_at( 649 inline static void deserialization_set_special_target_at(
637 Address instruction_payload, Address target) { 650 Address instruction_payload, Code* code, Address target) {
638 set_target_address_at(instruction_payload, target); 651 set_target_address_at(instruction_payload, code, target);
639 } 652 }
640 653
641 static const int kSpecialTargetSize = kPointerSize; 654 static const int kSpecialTargetSize = kPointerSize;
642 655
643 // Distance between the address of the code target in the call instruction 656 // Distance between the address of the code target in the call instruction
644 // and the return address 657 // and the return address
645 static const int kCallTargetAddressOffset = kPointerSize; 658 static const int kCallTargetAddressOffset = kPointerSize;
646 // Distance between start of patched return sequence and the emitted address 659 // Distance between start of patched return sequence and the emitted address
647 // to jump to. 660 // to jump to.
648 static const int kPatchReturnSequenceAddressOffset = 1; // JMP imm32. 661 static const int kPatchReturnSequenceAddressOffset = 1; // JMP imm32.
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1269 private: 1282 private:
1270 Assembler* assembler_; 1283 Assembler* assembler_;
1271 #ifdef DEBUG 1284 #ifdef DEBUG
1272 int space_before_; 1285 int space_before_;
1273 #endif 1286 #endif
1274 }; 1287 };
1275 1288
1276 } } // namespace v8::internal 1289 } } // namespace v8::internal
1277 1290
1278 #endif // V8_IA32_ASSEMBLER_IA32_H_ 1291 #endif // V8_IA32_ASSEMBLER_IA32_H_
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