594 // c_rarg2: compare_value
595 //
596 // Result:
597 // if ( compare_value == *dest ) {
598 // *dest = exchange_value
599 // return compare_value;
600 // else
601 // return *dest;
602 address generate_atomic_cmpxchg() {
603 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg");
604 address start = __ pc();
605
606 __ movl(rax, c_rarg2);
607 if ( os::is_MP() ) __ lock();
608 __ cmpxchgl(c_rarg0, Address(c_rarg1, 0));
609 __ ret(0);
610
611 return start;
612 }
613
614 // Support for jbyte atomic::atomic_cmpxchg(jbyte exchange_value, volatile jbyte* dest,
615 // jbyte compare_value)
616 //
617 // Arguments :
618 // c_rarg0: exchange_value
619 // c_rarg1: dest
620 // c_rarg2: compare_value
621 //
622 // Result:
623 // if ( compare_value == *dest ) {
624 // *dest = exchange_value
625 // return compare_value;
626 // else
627 // return *dest;
628 address generate_atomic_cmpxchg_byte() {
629 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_byte");
630 address start = __ pc();
631
632 __ movsbq(rax, c_rarg2);
633 if ( os::is_MP() ) __ lock();
634 __ cmpxchgb(c_rarg0, Address(c_rarg1, 0));
635 __ ret(0);
636
637 return start;
638 }
639
640 // Support for jlong atomic::atomic_cmpxchg(jlong exchange_value,
641 // volatile jlong* dest,
642 // jlong compare_value)
643 // Arguments :
644 // c_rarg0: exchange_value
645 // c_rarg1: dest
646 // c_rarg2: compare_value
647 //
648 // Result:
649 // if ( compare_value == *dest ) {
650 // *dest = exchange_value
651 // return compare_value;
652 // else
653 // return *dest;
654 address generate_atomic_cmpxchg_long() {
655 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_long");
656 address start = __ pc();
657
658 __ movq(rax, c_rarg2);
659 if ( os::is_MP() ) __ lock();
660 __ cmpxchgq(c_rarg0, Address(c_rarg1, 0));
661 __ ret(0);
662
677 address start = __ pc();
678
679 __ movl(rax, c_rarg0);
680 if ( os::is_MP() ) __ lock();
681 __ xaddl(Address(c_rarg1, 0), c_rarg0);
682 __ addl(rax, c_rarg0);
683 __ ret(0);
684
685 return start;
686 }
687
688 // Support for intptr_t atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest)
689 //
690 // Arguments :
691 // c_rarg0: add_value
692 // c_rarg1: dest
693 //
694 // Result:
695 // *dest += add_value
696 // return *dest;
697 address generate_atomic_add_ptr() {
698 StubCodeMark mark(this, "StubRoutines", "atomic_add_ptr");
699 address start = __ pc();
700
701 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow
702 if ( os::is_MP() ) __ lock();
703 __ xaddptr(Address(c_rarg1, 0), c_rarg0);
704 __ addptr(rax, c_rarg0);
705 __ ret(0);
706
707 return start;
708 }
709
710 // Support for intptr_t OrderAccess::fence()
711 //
712 // Arguments :
713 //
714 // Result:
715 address generate_orderaccess_fence() {
716 StubCodeMark mark(this, "StubRoutines", "orderaccess_fence");
717 address start = __ pc();
718 __ membar(Assembler::StoreLoad);
5004 // that could be shared among different platforms - however the
5005 // benefit seems to be smaller than the disadvantage of having a
5006 // much more complicated generator structure. See also comment in
5007 // stubRoutines.hpp.
5008
5009 StubRoutines::_forward_exception_entry = generate_forward_exception();
5010
5011 StubRoutines::_call_stub_entry =
5012 generate_call_stub(StubRoutines::_call_stub_return_address);
5013
5014 // is referenced by megamorphic call
5015 StubRoutines::_catch_exception_entry = generate_catch_exception();
5016
5017 // atomic calls
5018 StubRoutines::_atomic_xchg_entry = generate_atomic_xchg();
5019 StubRoutines::_atomic_xchg_long_entry = generate_atomic_xchg_long();
5020 StubRoutines::_atomic_cmpxchg_entry = generate_atomic_cmpxchg();
5021 StubRoutines::_atomic_cmpxchg_byte_entry = generate_atomic_cmpxchg_byte();
5022 StubRoutines::_atomic_cmpxchg_long_entry = generate_atomic_cmpxchg_long();
5023 StubRoutines::_atomic_add_entry = generate_atomic_add();
5024 StubRoutines::_atomic_add_ptr_entry = generate_atomic_add_ptr();
5025 StubRoutines::_fence_entry = generate_orderaccess_fence();
5026
5027 // platform dependent
5028 StubRoutines::x86::_get_previous_fp_entry = generate_get_previous_fp();
5029 StubRoutines::x86::_get_previous_sp_entry = generate_get_previous_sp();
5030
5031 StubRoutines::x86::_verify_mxcsr_entry = generate_verify_mxcsr();
5032
5033 // Build this early so it's available for the interpreter.
5034 StubRoutines::_throw_StackOverflowError_entry =
5035 generate_throw_exception("StackOverflowError throw_exception",
5036 CAST_FROM_FN_PTR(address,
5037 SharedRuntime::
5038 throw_StackOverflowError));
5039 StubRoutines::_throw_delayed_StackOverflowError_entry =
5040 generate_throw_exception("delayed StackOverflowError throw_exception",
5041 CAST_FROM_FN_PTR(address,
5042 SharedRuntime::
5043 throw_delayed_StackOverflowError));
5044 if (UseCRC32Intrinsics) {
|
594 // c_rarg2: compare_value
595 //
596 // Result:
597 // if ( compare_value == *dest ) {
598 // *dest = exchange_value
599 // return compare_value;
600 // else
601 // return *dest;
602 address generate_atomic_cmpxchg() {
603 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg");
604 address start = __ pc();
605
606 __ movl(rax, c_rarg2);
607 if ( os::is_MP() ) __ lock();
608 __ cmpxchgl(c_rarg0, Address(c_rarg1, 0));
609 __ ret(0);
610
611 return start;
612 }
613
614 // Support for int8_t atomic::atomic_cmpxchg(int8_t exchange_value, volatile int8_t* dest,
615 // int8_t compare_value)
616 //
617 // Arguments :
618 // c_rarg0: exchange_value
619 // c_rarg1: dest
620 // c_rarg2: compare_value
621 //
622 // Result:
623 // if ( compare_value == *dest ) {
624 // *dest = exchange_value
625 // return compare_value;
626 // else
627 // return *dest;
628 address generate_atomic_cmpxchg_byte() {
629 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_byte");
630 address start = __ pc();
631
632 __ movsbq(rax, c_rarg2);
633 if ( os::is_MP() ) __ lock();
634 __ cmpxchgb(c_rarg0, Address(c_rarg1, 0));
635 __ ret(0);
636
637 return start;
638 }
639
640 // Support for int64_t atomic::atomic_cmpxchg(int64_t exchange_value,
641 // volatile int64_t* dest,
642 // int64_t compare_value)
643 // Arguments :
644 // c_rarg0: exchange_value
645 // c_rarg1: dest
646 // c_rarg2: compare_value
647 //
648 // Result:
649 // if ( compare_value == *dest ) {
650 // *dest = exchange_value
651 // return compare_value;
652 // else
653 // return *dest;
654 address generate_atomic_cmpxchg_long() {
655 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_long");
656 address start = __ pc();
657
658 __ movq(rax, c_rarg2);
659 if ( os::is_MP() ) __ lock();
660 __ cmpxchgq(c_rarg0, Address(c_rarg1, 0));
661 __ ret(0);
662
677 address start = __ pc();
678
679 __ movl(rax, c_rarg0);
680 if ( os::is_MP() ) __ lock();
681 __ xaddl(Address(c_rarg1, 0), c_rarg0);
682 __ addl(rax, c_rarg0);
683 __ ret(0);
684
685 return start;
686 }
687
688 // Support for intptr_t atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest)
689 //
690 // Arguments :
691 // c_rarg0: add_value
692 // c_rarg1: dest
693 //
694 // Result:
695 // *dest += add_value
696 // return *dest;
697 address generate_atomic_add_long() {
698 StubCodeMark mark(this, "StubRoutines", "atomic_add_long");
699 address start = __ pc();
700
701 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow
702 if ( os::is_MP() ) __ lock();
703 __ xaddptr(Address(c_rarg1, 0), c_rarg0);
704 __ addptr(rax, c_rarg0);
705 __ ret(0);
706
707 return start;
708 }
709
710 // Support for intptr_t OrderAccess::fence()
711 //
712 // Arguments :
713 //
714 // Result:
715 address generate_orderaccess_fence() {
716 StubCodeMark mark(this, "StubRoutines", "orderaccess_fence");
717 address start = __ pc();
718 __ membar(Assembler::StoreLoad);
5004 // that could be shared among different platforms - however the
5005 // benefit seems to be smaller than the disadvantage of having a
5006 // much more complicated generator structure. See also comment in
5007 // stubRoutines.hpp.
5008
5009 StubRoutines::_forward_exception_entry = generate_forward_exception();
5010
5011 StubRoutines::_call_stub_entry =
5012 generate_call_stub(StubRoutines::_call_stub_return_address);
5013
5014 // is referenced by megamorphic call
5015 StubRoutines::_catch_exception_entry = generate_catch_exception();
5016
5017 // atomic calls
5018 StubRoutines::_atomic_xchg_entry = generate_atomic_xchg();
5019 StubRoutines::_atomic_xchg_long_entry = generate_atomic_xchg_long();
5020 StubRoutines::_atomic_cmpxchg_entry = generate_atomic_cmpxchg();
5021 StubRoutines::_atomic_cmpxchg_byte_entry = generate_atomic_cmpxchg_byte();
5022 StubRoutines::_atomic_cmpxchg_long_entry = generate_atomic_cmpxchg_long();
5023 StubRoutines::_atomic_add_entry = generate_atomic_add();
5024 StubRoutines::_atomic_add_long_entry = generate_atomic_add_long();
5025 StubRoutines::_fence_entry = generate_orderaccess_fence();
5026
5027 // platform dependent
5028 StubRoutines::x86::_get_previous_fp_entry = generate_get_previous_fp();
5029 StubRoutines::x86::_get_previous_sp_entry = generate_get_previous_sp();
5030
5031 StubRoutines::x86::_verify_mxcsr_entry = generate_verify_mxcsr();
5032
5033 // Build this early so it's available for the interpreter.
5034 StubRoutines::_throw_StackOverflowError_entry =
5035 generate_throw_exception("StackOverflowError throw_exception",
5036 CAST_FROM_FN_PTR(address,
5037 SharedRuntime::
5038 throw_StackOverflowError));
5039 StubRoutines::_throw_delayed_StackOverflowError_entry =
5040 generate_throw_exception("delayed StackOverflowError throw_exception",
5041 CAST_FROM_FN_PTR(address,
5042 SharedRuntime::
5043 throw_delayed_StackOverflowError));
5044 if (UseCRC32Intrinsics) {
|