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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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1407 | 1407 |
1408 | 1408 |
1409 void Assembler::bind(Label* L) { | 1409 void Assembler::bind(Label* L) { |
1410 EnsureSpace ensure_space(this); | 1410 EnsureSpace ensure_space(this); |
1411 DCHECK(!L->is_bound()); // label can only be bound once | 1411 DCHECK(!L->is_bound()); // label can only be bound once |
1412 bind_to(L, pc_offset()); | 1412 bind_to(L, pc_offset()); |
1413 } | 1413 } |
1414 | 1414 |
1415 | 1415 |
1416 void Assembler::call(Label* L) { | 1416 void Assembler::call(Label* L) { |
1417 positions_recorder()->WriteRecordedPositions(); | |
1418 EnsureSpace ensure_space(this); | 1417 EnsureSpace ensure_space(this); |
1419 if (L->is_bound()) { | 1418 if (L->is_bound()) { |
1420 const int long_size = 5; | 1419 const int long_size = 5; |
1421 int offs = L->pos() - pc_offset(); | 1420 int offs = L->pos() - pc_offset(); |
1422 DCHECK(offs <= 0); | 1421 DCHECK(offs <= 0); |
1423 // 1110 1000 #32-bit disp. | 1422 // 1110 1000 #32-bit disp. |
1424 EMIT(0xE8); | 1423 EMIT(0xE8); |
1425 emit(offs - long_size); | 1424 emit(offs - long_size); |
1426 } else { | 1425 } else { |
1427 // 1110 1000 #32-bit disp. | 1426 // 1110 1000 #32-bit disp. |
1428 EMIT(0xE8); | 1427 EMIT(0xE8); |
1429 emit_disp(L, Displacement::OTHER); | 1428 emit_disp(L, Displacement::OTHER); |
1430 } | 1429 } |
1431 } | 1430 } |
1432 | 1431 |
1433 | 1432 |
1434 void Assembler::call(byte* entry, RelocInfo::Mode rmode) { | 1433 void Assembler::call(byte* entry, RelocInfo::Mode rmode) { |
1435 positions_recorder()->WriteRecordedPositions(); | |
1436 EnsureSpace ensure_space(this); | 1434 EnsureSpace ensure_space(this); |
1437 DCHECK(!RelocInfo::IsCodeTarget(rmode)); | 1435 DCHECK(!RelocInfo::IsCodeTarget(rmode)); |
1438 EMIT(0xE8); | 1436 EMIT(0xE8); |
1439 if (RelocInfo::IsRuntimeEntry(rmode)) { | 1437 if (RelocInfo::IsRuntimeEntry(rmode)) { |
1440 emit(reinterpret_cast<uint32_t>(entry), rmode); | 1438 emit(reinterpret_cast<uint32_t>(entry), rmode); |
1441 } else { | 1439 } else { |
1442 emit(entry - (pc_ + sizeof(int32_t)), rmode); | 1440 emit(entry - (pc_ + sizeof(int32_t)), rmode); |
1443 } | 1441 } |
1444 } | 1442 } |
1445 | 1443 |
1446 | 1444 |
1447 int Assembler::CallSize(const Operand& adr) { | 1445 int Assembler::CallSize(const Operand& adr) { |
1448 // Call size is 1 (opcode) + adr.len_ (operand). | 1446 // Call size is 1 (opcode) + adr.len_ (operand). |
1449 return 1 + adr.len_; | 1447 return 1 + adr.len_; |
1450 } | 1448 } |
1451 | 1449 |
1452 | 1450 |
1453 void Assembler::call(const Operand& adr) { | 1451 void Assembler::call(const Operand& adr) { |
1454 positions_recorder()->WriteRecordedPositions(); | |
1455 EnsureSpace ensure_space(this); | 1452 EnsureSpace ensure_space(this); |
1456 EMIT(0xFF); | 1453 EMIT(0xFF); |
1457 emit_operand(edx, adr); | 1454 emit_operand(edx, adr); |
1458 } | 1455 } |
1459 | 1456 |
1460 | 1457 |
1461 int Assembler::CallSize(Handle<Code> code, RelocInfo::Mode rmode) { | 1458 int Assembler::CallSize(Handle<Code> code, RelocInfo::Mode rmode) { |
1462 return 1 /* EMIT */ + sizeof(uint32_t) /* emit */; | 1459 return 1 /* EMIT */ + sizeof(uint32_t) /* emit */; |
1463 } | 1460 } |
1464 | 1461 |
1465 | 1462 |
1466 void Assembler::call(Handle<Code> code, | 1463 void Assembler::call(Handle<Code> code, |
1467 RelocInfo::Mode rmode, | 1464 RelocInfo::Mode rmode, |
1468 TypeFeedbackId ast_id) { | 1465 TypeFeedbackId ast_id) { |
1469 positions_recorder()->WriteRecordedPositions(); | |
1470 EnsureSpace ensure_space(this); | 1466 EnsureSpace ensure_space(this); |
1471 DCHECK(RelocInfo::IsCodeTarget(rmode) | 1467 DCHECK(RelocInfo::IsCodeTarget(rmode) |
1472 || rmode == RelocInfo::CODE_AGE_SEQUENCE); | 1468 || rmode == RelocInfo::CODE_AGE_SEQUENCE); |
1473 EMIT(0xE8); | 1469 EMIT(0xE8); |
1474 emit(code, rmode, ast_id); | 1470 emit(code, rmode, ast_id); |
1475 } | 1471 } |
1476 | 1472 |
1477 | 1473 |
1478 void Assembler::jmp(Label* L, Label::Distance distance) { | 1474 void Assembler::jmp(Label* L, Label::Distance distance) { |
1479 EnsureSpace ensure_space(this); | 1475 EnsureSpace ensure_space(this); |
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2247 fflush(coverage_log); | 2243 fflush(coverage_log); |
2248 } | 2244 } |
2249 } | 2245 } |
2250 | 2246 |
2251 #endif | 2247 #endif |
2252 | 2248 |
2253 } // namespace internal | 2249 } // namespace internal |
2254 } // namespace v8 | 2250 } // namespace v8 |
2255 | 2251 |
2256 #endif // V8_TARGET_ARCH_X87 | 2252 #endif // V8_TARGET_ARCH_X87 |
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