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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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819 GenerateMakeCodeYoungAgainCommon(masm); \ | 819 GenerateMakeCodeYoungAgainCommon(masm); \ |
820 } \ | 820 } \ |
821 void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ | 821 void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
822 MacroAssembler* masm) { \ | 822 MacroAssembler* masm) { \ |
823 GenerateMakeCodeYoungAgainCommon(masm); \ | 823 GenerateMakeCodeYoungAgainCommon(masm); \ |
824 } | 824 } |
825 CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) | 825 CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR) |
826 #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR | 826 #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR |
827 | 827 |
828 | 828 |
| 829 void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) { |
| 830 // For now, as in GenerateMakeCodeYoungAgainCommon, we are relying on the fact |
| 831 // that make_code_young doesn't do any garbage collection which allows us to |
| 832 // save/restore the registers without worrying about which of them contain |
| 833 // pointers. |
| 834 |
| 835 // The following registers must be saved and restored when calling through to |
| 836 // the runtime: |
| 837 // r0 - contains return address (beginning of patch sequence) |
| 838 // r1 - isolate |
| 839 FrameScope scope(masm, StackFrame::MANUAL); |
| 840 __ stm(db_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit()); |
| 841 __ PrepareCallCFunction(1, 0, r2); |
| 842 __ mov(r1, Operand(ExternalReference::isolate_address(masm->isolate()))); |
| 843 __ CallCFunction(ExternalReference::get_mark_code_as_executed_function( |
| 844 masm->isolate()), 2); |
| 845 __ ldm(ia_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit()); |
| 846 |
| 847 // Perform prologue operations usually performed by the young code stub. |
| 848 __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit()); |
| 849 __ add(fp, sp, Operand(2 * kPointerSize)); |
| 850 |
| 851 // Jump to point after the code-age stub. |
| 852 __ add(r0, r0, Operand(kNoCodeAgeSequenceLength * Assembler::kInstrSize)); |
| 853 __ mov(pc, r0); |
| 854 } |
| 855 |
| 856 |
| 857 void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) { |
| 858 GenerateMakeCodeYoungAgainCommon(masm); |
| 859 } |
| 860 |
| 861 |
829 void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { | 862 void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) { |
830 { | 863 { |
831 FrameScope scope(masm, StackFrame::INTERNAL); | 864 FrameScope scope(masm, StackFrame::INTERNAL); |
832 | 865 |
833 // Preserve registers across notification, this is important for compiled | 866 // Preserve registers across notification, this is important for compiled |
834 // stubs that tail call the runtime on deopts passing their parameters in | 867 // stubs that tail call the runtime on deopts passing their parameters in |
835 // registers. | 868 // registers. |
836 __ stm(db_w, sp, kJSCallerSaved | kCalleeSaved); | 869 __ stm(db_w, sp, kJSCallerSaved | kCalleeSaved); |
837 // Pass the function and deoptimization type to the runtime system. | 870 // Pass the function and deoptimization type to the runtime system. |
838 __ CallRuntime(Runtime::kNotifyStubFailure, 0); | 871 __ CallRuntime(Runtime::kNotifyStubFailure, 0); |
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1436 __ bind(&dont_adapt_arguments); | 1469 __ bind(&dont_adapt_arguments); |
1437 __ Jump(r3); | 1470 __ Jump(r3); |
1438 } | 1471 } |
1439 | 1472 |
1440 | 1473 |
1441 #undef __ | 1474 #undef __ |
1442 | 1475 |
1443 } } // namespace v8::internal | 1476 } } // namespace v8::internal |
1444 | 1477 |
1445 #endif // V8_TARGET_ARCH_ARM | 1478 #endif // V8_TARGET_ARCH_ARM |
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