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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 #include "src/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/ic/handler-compiler.h" | 10 #include "src/ic/handler-compiler.h" |
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1057 } | 1057 } |
1058 | 1058 |
1059 | 1059 |
1060 void CEntryStub::Generate(MacroAssembler* masm) { | 1060 void CEntryStub::Generate(MacroAssembler* masm) { |
1061 // Called from JavaScript; parameters are on stack as if calling JS function | 1061 // Called from JavaScript; parameters are on stack as if calling JS function |
1062 // a0: number of arguments including receiver | 1062 // a0: number of arguments including receiver |
1063 // a1: pointer to builtin function | 1063 // a1: pointer to builtin function |
1064 // fp: frame pointer (restored after C call) | 1064 // fp: frame pointer (restored after C call) |
1065 // sp: stack pointer (restored as callee's sp after C call) | 1065 // sp: stack pointer (restored as callee's sp after C call) |
1066 // cp: current context (C callee-saved) | 1066 // cp: current context (C callee-saved) |
| 1067 // |
| 1068 // If argv_in_register(): |
| 1069 // a2: pointer to the first argument |
1067 | 1070 |
1068 ProfileEntryHookStub::MaybeCallEntryHook(masm); | 1071 ProfileEntryHookStub::MaybeCallEntryHook(masm); |
1069 | 1072 |
1070 // Compute the argv pointer in a callee-saved register. | 1073 if (!argv_in_register()) { |
1071 __ dsll(s1, a0, kPointerSizeLog2); | 1074 // Compute the argv pointer in a callee-saved register. |
1072 __ Daddu(s1, sp, s1); | 1075 __ dsll(s1, a0, kPointerSizeLog2); |
1073 __ Dsubu(s1, s1, kPointerSize); | 1076 __ Daddu(s1, sp, s1); |
| 1077 __ Dsubu(s1, s1, kPointerSize); |
| 1078 } else { |
| 1079 __ mov(s1, a2); |
| 1080 } |
1074 | 1081 |
1075 // Enter the exit frame that transitions from JavaScript to C++. | 1082 // Enter the exit frame that transitions from JavaScript to C++. |
1076 FrameScope scope(masm, StackFrame::MANUAL); | 1083 FrameScope scope(masm, StackFrame::MANUAL); |
1077 __ EnterExitFrame(save_doubles()); | 1084 __ EnterExitFrame(save_doubles()); |
1078 | 1085 |
1079 // s0: number of arguments including receiver (C callee-saved) | 1086 // s0: number of arguments including receiver (C callee-saved) |
1080 // s1: pointer to first argument (C callee-saved) | 1087 // s1: pointer to first argument (C callee-saved) |
1081 // s2: pointer to builtin function (C callee-saved) | 1088 // s2: pointer to builtin function (C callee-saved) |
1082 | 1089 |
1083 // Prepare arguments for C routine. | 1090 // Prepare arguments for C routine. |
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5760 MemOperand(fp, 6 * kPointerSize), NULL); | 5767 MemOperand(fp, 6 * kPointerSize), NULL); |
5761 } | 5768 } |
5762 | 5769 |
5763 | 5770 |
5764 #undef __ | 5771 #undef __ |
5765 | 5772 |
5766 } // namespace internal | 5773 } // namespace internal |
5767 } // namespace v8 | 5774 } // namespace v8 |
5768 | 5775 |
5769 #endif // V8_TARGET_ARCH_MIPS64 | 5776 #endif // V8_TARGET_ARCH_MIPS64 |
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