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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 496 j(not_zero, &ok, taken); | 496 j(not_zero, &ok, taken); |
| 497 mov(scratch, Operand(op1)); | 497 mov(scratch, Operand(op1)); |
| 498 or_(scratch, Operand(op2)); | 498 or_(scratch, Operand(op2)); |
| 499 j(sign, then_label, not_taken); | 499 j(sign, then_label, not_taken); |
| 500 bind(&ok); | 500 bind(&ok); |
| 501 } | 501 } |
| 502 | 502 |
| 503 | 503 |
| 504 void MacroAssembler::CallStub(CodeStub* stub) { | 504 void MacroAssembler::CallStub(CodeStub* stub) { |
| 505 ASSERT(allow_stub_calls()); // calls are not allowed in some stubs | 505 ASSERT(allow_stub_calls()); // calls are not allowed in some stubs |
| 506 call(stub->GetCode(), code_target); | 506 call(stub->GetCode(), RelocInfo::CODE_TARGET); |
| 507 } | 507 } |
| 508 | 508 |
| 509 | 509 |
| 510 void MacroAssembler::StubReturn(int argc) { | 510 void MacroAssembler::StubReturn(int argc) { |
| 511 ASSERT(argc >= 1 && generating_stub()); | 511 ASSERT(argc >= 1 && generating_stub()); |
| 512 ret((argc - 1) * kPointerSize); | 512 ret((argc - 1) * kPointerSize); |
| 513 } | 513 } |
| 514 | 514 |
| 515 | 515 |
| 516 void MacroAssembler::IllegalOperation() { | 516 void MacroAssembler::IllegalOperation() { |
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| 547 // smarter. | 547 // smarter. |
| 548 mov(Operand(eax), Immediate(num_arguments)); | 548 mov(Operand(eax), Immediate(num_arguments)); |
| 549 JumpToBuiltin(ext); | 549 JumpToBuiltin(ext); |
| 550 } | 550 } |
| 551 | 551 |
| 552 | 552 |
| 553 void MacroAssembler::JumpToBuiltin(const ExternalReference& ext) { | 553 void MacroAssembler::JumpToBuiltin(const ExternalReference& ext) { |
| 554 // Set the entry point and jump to the C entry runtime stub. | 554 // Set the entry point and jump to the C entry runtime stub. |
| 555 mov(Operand(ebx), Immediate(ext)); | 555 mov(Operand(ebx), Immediate(ext)); |
| 556 CEntryStub ces; | 556 CEntryStub ces; |
| 557 jmp(ces.GetCode(), code_target); | 557 jmp(ces.GetCode(), RelocInfo::CODE_TARGET); |
| 558 } | 558 } |
| 559 | 559 |
| 560 | 560 |
| 561 void MacroAssembler::InvokePrologue(const ParameterCount& expected, | 561 void MacroAssembler::InvokePrologue(const ParameterCount& expected, |
| 562 const ParameterCount& actual, | 562 const ParameterCount& actual, |
| 563 Handle<Code> code_constant, | 563 Handle<Code> code_constant, |
| 564 const Operand& code_operand, | 564 const Operand& code_operand, |
| 565 Label* done, | 565 Label* done, |
| 566 InvokeFlag flag) { | 566 InvokeFlag flag) { |
| 567 bool definitely_matches = false; | 567 bool definitely_matches = false; |
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| 606 Handle<Code> adaptor = | 606 Handle<Code> adaptor = |
| 607 Handle<Code>(Builtins::builtin(Builtins::ArgumentsAdaptorTrampoline)); | 607 Handle<Code>(Builtins::builtin(Builtins::ArgumentsAdaptorTrampoline)); |
| 608 if (!code_constant.is_null()) { | 608 if (!code_constant.is_null()) { |
| 609 mov(Operand(edx), Immediate(code_constant)); | 609 mov(Operand(edx), Immediate(code_constant)); |
| 610 add(Operand(edx), Immediate(Code::kHeaderSize - kHeapObjectTag)); | 610 add(Operand(edx), Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 611 } else if (!code_operand.is_reg(edx)) { | 611 } else if (!code_operand.is_reg(edx)) { |
| 612 mov(edx, code_operand); | 612 mov(edx, code_operand); |
| 613 } | 613 } |
| 614 | 614 |
| 615 if (flag == CALL_FUNCTION) { | 615 if (flag == CALL_FUNCTION) { |
| 616 call(adaptor, code_target); | 616 call(adaptor, RelocInfo::CODE_TARGET); |
| 617 jmp(done); | 617 jmp(done); |
| 618 } else { | 618 } else { |
| 619 jmp(adaptor, code_target); | 619 jmp(adaptor, RelocInfo::CODE_TARGET); |
| 620 } | 620 } |
| 621 bind(&invoke); | 621 bind(&invoke); |
| 622 } | 622 } |
| 623 } | 623 } |
| 624 | 624 |
| 625 | 625 |
| 626 void MacroAssembler::InvokeCode(const Operand& code, | 626 void MacroAssembler::InvokeCode(const Operand& code, |
| 627 const ParameterCount& expected, | 627 const ParameterCount& expected, |
| 628 const ParameterCount& actual, | 628 const ParameterCount& actual, |
| 629 InvokeFlag flag) { | 629 InvokeFlag flag) { |
| 630 Label done; | 630 Label done; |
| 631 InvokePrologue(expected, actual, Handle<Code>::null(), code, &done, flag); | 631 InvokePrologue(expected, actual, Handle<Code>::null(), code, &done, flag); |
| 632 if (flag == CALL_FUNCTION) { | 632 if (flag == CALL_FUNCTION) { |
| 633 call(code); | 633 call(code); |
| 634 } else { | 634 } else { |
| 635 ASSERT(flag == JUMP_FUNCTION); | 635 ASSERT(flag == JUMP_FUNCTION); |
| 636 jmp(code); | 636 jmp(code); |
| 637 } | 637 } |
| 638 bind(&done); | 638 bind(&done); |
| 639 } | 639 } |
| 640 | 640 |
| 641 | 641 |
| 642 void MacroAssembler::InvokeCode(Handle<Code> code, | 642 void MacroAssembler::InvokeCode(Handle<Code> code, |
| 643 const ParameterCount& expected, | 643 const ParameterCount& expected, |
| 644 const ParameterCount& actual, | 644 const ParameterCount& actual, |
| 645 RelocMode rmode, | 645 RelocInfo::Mode rmode, |
| 646 InvokeFlag flag) { | 646 InvokeFlag flag) { |
| 647 Label done; | 647 Label done; |
| 648 Operand dummy(eax); | 648 Operand dummy(eax); |
| 649 InvokePrologue(expected, actual, code, dummy, &done, flag); | 649 InvokePrologue(expected, actual, code, dummy, &done, flag); |
| 650 if (flag == CALL_FUNCTION) { | 650 if (flag == CALL_FUNCTION) { |
| 651 call(code, rmode); | 651 call(code, rmode); |
| 652 } else { | 652 } else { |
| 653 ASSERT(flag == JUMP_FUNCTION); | 653 ASSERT(flag == JUMP_FUNCTION); |
| 654 jmp(code, rmode); | 654 jmp(code, rmode); |
| 655 } | 655 } |
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| 676 bool resolved; | 676 bool resolved; |
| 677 Handle<Code> code = ResolveBuiltin(id, &resolved); | 677 Handle<Code> code = ResolveBuiltin(id, &resolved); |
| 678 | 678 |
| 679 // Calls are not allowed in some stubs. | 679 // Calls are not allowed in some stubs. |
| 680 ASSERT(flag == JUMP_FUNCTION || allow_stub_calls()); | 680 ASSERT(flag == JUMP_FUNCTION || allow_stub_calls()); |
| 681 | 681 |
| 682 // Rely on the assertion to check that the number of provided | 682 // Rely on the assertion to check that the number of provided |
| 683 // arguments match the expected number of arguments. Fake a | 683 // arguments match the expected number of arguments. Fake a |
| 684 // parameter count to avoid emitting code to do the check. | 684 // parameter count to avoid emitting code to do the check. |
| 685 ParameterCount expected(0); | 685 ParameterCount expected(0); |
| 686 InvokeCode(Handle<Code>(code), expected, expected, code_target, flag); | 686 InvokeCode(Handle<Code>(code), expected, expected, |
| 687 RelocInfo::CODE_TARGET, flag); |
| 687 | 688 |
| 688 const char* name = Builtins::GetName(id); | 689 const char* name = Builtins::GetName(id); |
| 689 int argc = Builtins::GetArgumentsCount(id); | 690 int argc = Builtins::GetArgumentsCount(id); |
| 690 | 691 |
| 691 if (!resolved) { | 692 if (!resolved) { |
| 692 uint32_t flags = | 693 uint32_t flags = |
| 693 Bootstrapper::FixupFlagsArgumentsCount::encode(argc) | | 694 Bootstrapper::FixupFlagsArgumentsCount::encode(argc) | |
| 694 Bootstrapper::FixupFlagsIsPCRelative::encode(true); | 695 Bootstrapper::FixupFlagsIsPCRelative::encode(true); |
| 695 Unresolved entry = { pc_offset() - sizeof(int32_t), flags, name }; | 696 Unresolved entry = { pc_offset() - sizeof(int32_t), flags, name }; |
| 696 unresolved_.Add(entry); | 697 unresolved_.Add(entry); |
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| 823 // Indicate that code has changed. | 824 // Indicate that code has changed. |
| 824 CPU::FlushICache(address_, size_); | 825 CPU::FlushICache(address_, size_); |
| 825 | 826 |
| 826 // Check that the code was patched as expected. | 827 // Check that the code was patched as expected. |
| 827 ASSERT(masm_.pc_ == address_ + size_); | 828 ASSERT(masm_.pc_ == address_ + size_); |
| 828 ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); | 829 ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); |
| 829 } | 830 } |
| 830 | 831 |
| 831 | 832 |
| 832 } } // namespace v8::internal | 833 } } // namespace v8::internal |
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