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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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| 800 static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { | 800 static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
| 801 // For now, we are relying on the fact that make_code_young doesn't do any | 801 // For now, we are relying on the fact that make_code_young doesn't do any |
| 802 // garbage collection which allows us to save/restore the registers without | 802 // garbage collection which allows us to save/restore the registers without |
| 803 // worrying about which of them contain pointers. We also don't build an | 803 // worrying about which of them contain pointers. We also don't build an |
| 804 // internal frame to make the code faster, since we shouldn't have to do stack | 804 // internal frame to make the code faster, since we shouldn't have to do stack |
| 805 // crawls in MakeCodeYoung. This seems a bit fragile. | 805 // crawls in MakeCodeYoung. This seems a bit fragile. |
| 806 | 806 |
| 807 // The following registers must be saved and restored when calling through to | 807 // The following registers must be saved and restored when calling through to |
| 808 // the runtime: | 808 // the runtime: |
| 809 // r0 - contains return address (beginning of patch sequence) | 809 // r0 - contains return address (beginning of patch sequence) |
| 810 // r1 - function object | 810 // r1 - isolate |
| 811 FrameScope scope(masm, StackFrame::MANUAL); | 811 FrameScope scope(masm, StackFrame::MANUAL); |
| 812 __ stm(db_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit()); | 812 __ stm(db_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit()); |
| 813 __ PrepareCallCFunction(1, 0, r1); | 813 __ PrepareCallCFunction(1, 0, r2); |
| 814 __ mov(r1, Operand(ExternalReference::isolate_address(masm->isolate()))); |
| 814 __ CallCFunction( | 815 __ CallCFunction( |
| 815 ExternalReference::get_make_code_young_function(masm->isolate()), 1); | 816 ExternalReference::get_make_code_young_function(masm->isolate()), 2); |
| 816 __ ldm(ia_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit()); | 817 __ ldm(ia_w, sp, r0.bit() | r1.bit() | fp.bit() | lr.bit()); |
| 817 __ mov(pc, r0); | 818 __ mov(pc, r0); |
| 818 } | 819 } |
| 819 | 820 |
| 820 #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ | 821 #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C) \ |
| 821 void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ | 822 void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking( \ |
| 822 MacroAssembler* masm) { \ | 823 MacroAssembler* masm) { \ |
| 823 GenerateMakeCodeYoungAgainCommon(masm); \ | 824 GenerateMakeCodeYoungAgainCommon(masm); \ |
| 824 } \ | 825 } \ |
| 825 void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ | 826 void Builtins::Generate_Make##C##CodeYoungAgainOddMarking( \ |
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| 1437 __ bind(&dont_adapt_arguments); | 1438 __ bind(&dont_adapt_arguments); |
| 1438 __ Jump(r3); | 1439 __ Jump(r3); |
| 1439 } | 1440 } |
| 1440 | 1441 |
| 1441 | 1442 |
| 1442 #undef __ | 1443 #undef __ |
| 1443 | 1444 |
| 1444 } } // namespace v8::internal | 1445 } } // namespace v8::internal |
| 1445 | 1446 |
| 1446 #endif // V8_TARGET_ARCH_ARM | 1447 #endif // V8_TARGET_ARCH_ARM |
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