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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 | 5 // modification, are permitted provided that the following conditions |
6 // are met: | 6 // are 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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1524 | 1524 |
1525 | 1525 |
1526 void Assembler::bind(Label* L) { | 1526 void Assembler::bind(Label* L) { |
1527 EnsureSpace ensure_space(this); | 1527 EnsureSpace ensure_space(this); |
1528 DCHECK(!L->is_bound()); // label can only be bound once | 1528 DCHECK(!L->is_bound()); // label can only be bound once |
1529 bind_to(L, pc_offset()); | 1529 bind_to(L, pc_offset()); |
1530 } | 1530 } |
1531 | 1531 |
1532 | 1532 |
1533 void Assembler::call(Label* L) { | 1533 void Assembler::call(Label* L) { |
1534 positions_recorder()->WriteRecordedPositions(); | |
1535 EnsureSpace ensure_space(this); | 1534 EnsureSpace ensure_space(this); |
1536 if (L->is_bound()) { | 1535 if (L->is_bound()) { |
1537 const int long_size = 5; | 1536 const int long_size = 5; |
1538 int offs = L->pos() - pc_offset(); | 1537 int offs = L->pos() - pc_offset(); |
1539 DCHECK(offs <= 0); | 1538 DCHECK(offs <= 0); |
1540 // 1110 1000 #32-bit disp. | 1539 // 1110 1000 #32-bit disp. |
1541 EMIT(0xE8); | 1540 EMIT(0xE8); |
1542 emit(offs - long_size); | 1541 emit(offs - long_size); |
1543 } else { | 1542 } else { |
1544 // 1110 1000 #32-bit disp. | 1543 // 1110 1000 #32-bit disp. |
1545 EMIT(0xE8); | 1544 EMIT(0xE8); |
1546 emit_disp(L, Displacement::OTHER); | 1545 emit_disp(L, Displacement::OTHER); |
1547 } | 1546 } |
1548 } | 1547 } |
1549 | 1548 |
1550 | 1549 |
1551 void Assembler::call(byte* entry, RelocInfo::Mode rmode) { | 1550 void Assembler::call(byte* entry, RelocInfo::Mode rmode) { |
1552 positions_recorder()->WriteRecordedPositions(); | |
1553 EnsureSpace ensure_space(this); | 1551 EnsureSpace ensure_space(this); |
1554 DCHECK(!RelocInfo::IsCodeTarget(rmode)); | 1552 DCHECK(!RelocInfo::IsCodeTarget(rmode)); |
1555 EMIT(0xE8); | 1553 EMIT(0xE8); |
1556 if (RelocInfo::IsRuntimeEntry(rmode)) { | 1554 if (RelocInfo::IsRuntimeEntry(rmode)) { |
1557 emit(reinterpret_cast<uint32_t>(entry), rmode); | 1555 emit(reinterpret_cast<uint32_t>(entry), rmode); |
1558 } else { | 1556 } else { |
1559 emit(entry - (pc_ + sizeof(int32_t)), rmode); | 1557 emit(entry - (pc_ + sizeof(int32_t)), rmode); |
1560 } | 1558 } |
1561 } | 1559 } |
1562 | 1560 |
1563 | 1561 |
1564 int Assembler::CallSize(const Operand& adr) { | 1562 int Assembler::CallSize(const Operand& adr) { |
1565 // Call size is 1 (opcode) + adr.len_ (operand). | 1563 // Call size is 1 (opcode) + adr.len_ (operand). |
1566 return 1 + adr.len_; | 1564 return 1 + adr.len_; |
1567 } | 1565 } |
1568 | 1566 |
1569 | 1567 |
1570 void Assembler::call(const Operand& adr) { | 1568 void Assembler::call(const Operand& adr) { |
1571 positions_recorder()->WriteRecordedPositions(); | |
1572 EnsureSpace ensure_space(this); | 1569 EnsureSpace ensure_space(this); |
1573 EMIT(0xFF); | 1570 EMIT(0xFF); |
1574 emit_operand(edx, adr); | 1571 emit_operand(edx, adr); |
1575 } | 1572 } |
1576 | 1573 |
1577 | 1574 |
1578 int Assembler::CallSize(Handle<Code> code, RelocInfo::Mode rmode) { | 1575 int Assembler::CallSize(Handle<Code> code, RelocInfo::Mode rmode) { |
1579 return 1 /* EMIT */ + sizeof(uint32_t) /* emit */; | 1576 return 1 /* EMIT */ + sizeof(uint32_t) /* emit */; |
1580 } | 1577 } |
1581 | 1578 |
1582 | 1579 |
1583 void Assembler::call(Handle<Code> code, | 1580 void Assembler::call(Handle<Code> code, |
1584 RelocInfo::Mode rmode, | 1581 RelocInfo::Mode rmode, |
1585 TypeFeedbackId ast_id) { | 1582 TypeFeedbackId ast_id) { |
1586 positions_recorder()->WriteRecordedPositions(); | |
1587 EnsureSpace ensure_space(this); | 1583 EnsureSpace ensure_space(this); |
1588 DCHECK(RelocInfo::IsCodeTarget(rmode) | 1584 DCHECK(RelocInfo::IsCodeTarget(rmode) |
1589 || rmode == RelocInfo::CODE_AGE_SEQUENCE); | 1585 || rmode == RelocInfo::CODE_AGE_SEQUENCE); |
1590 EMIT(0xE8); | 1586 EMIT(0xE8); |
1591 emit(code, rmode, ast_id); | 1587 emit(code, rmode, ast_id); |
1592 } | 1588 } |
1593 | 1589 |
1594 | 1590 |
1595 void Assembler::jmp(Label* L, Label::Distance distance) { | 1591 void Assembler::jmp(Label* L, Label::Distance distance) { |
1596 EnsureSpace ensure_space(this); | 1592 EnsureSpace ensure_space(this); |
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3076 fflush(coverage_log); | 3072 fflush(coverage_log); |
3077 } | 3073 } |
3078 } | 3074 } |
3079 | 3075 |
3080 #endif | 3076 #endif |
3081 | 3077 |
3082 } // namespace internal | 3078 } // namespace internal |
3083 } // namespace v8 | 3079 } // namespace v8 |
3084 | 3080 |
3085 #endif // V8_TARGET_ARCH_IA32 | 3081 #endif // V8_TARGET_ARCH_IA32 |
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