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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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3865 Jump(stub->GetCode(isolate()), RelocInfo::CODE_TARGET, cond, r1, r2, bd); | 3865 Jump(stub->GetCode(isolate()), RelocInfo::CODE_TARGET, cond, r1, r2, bd); |
3866 } | 3866 } |
3867 | 3867 |
3868 | 3868 |
3869 static int AddressOffset(ExternalReference ref0, ExternalReference ref1) { | 3869 static int AddressOffset(ExternalReference ref0, ExternalReference ref1) { |
3870 return ref0.address() - ref1.address(); | 3870 return ref0.address() - ref1.address(); |
3871 } | 3871 } |
3872 | 3872 |
3873 | 3873 |
3874 void MacroAssembler::CallApiFunctionAndReturn( | 3874 void MacroAssembler::CallApiFunctionAndReturn( |
3875 ExternalReference function, | 3875 Register function_address, |
3876 Address function_address, | |
3877 ExternalReference thunk_ref, | 3876 ExternalReference thunk_ref, |
3878 Register thunk_last_arg, | 3877 Register thunk_last_arg, |
3879 int stack_space, | 3878 int stack_space, |
3880 MemOperand return_value_operand, | 3879 MemOperand return_value_operand, |
3881 MemOperand* context_restore_operand) { | 3880 MemOperand* context_restore_operand) { |
3882 ExternalReference next_address = | 3881 ExternalReference next_address = |
3883 ExternalReference::handle_scope_next_address(isolate()); | 3882 ExternalReference::handle_scope_next_address(isolate()); |
3884 const int kNextOffset = 0; | 3883 const int kNextOffset = 0; |
3885 const int kLimitOffset = AddressOffset( | 3884 const int kLimitOffset = AddressOffset( |
3886 ExternalReference::handle_scope_limit_address(isolate()), | 3885 ExternalReference::handle_scope_limit_address(isolate()), |
3887 next_address); | 3886 next_address); |
3888 const int kLevelOffset = AddressOffset( | 3887 const int kLevelOffset = AddressOffset( |
3889 ExternalReference::handle_scope_level_address(isolate()), | 3888 ExternalReference::handle_scope_level_address(isolate()), |
3890 next_address); | 3889 next_address); |
3891 | 3890 |
| 3891 ASSERT(function_address.is(a3)); |
| 3892 ASSERT(thunk_last_arg.is(a1) || thunk_last_arg.is(a2)); |
| 3893 |
| 3894 Label profiler_disabled; |
| 3895 Label end_profiler_check; |
| 3896 bool* is_profiling_flag = |
| 3897 isolate()->cpu_profiler()->is_profiling_address(); |
| 3898 STATIC_ASSERT(sizeof(*is_profiling_flag) == 1); |
| 3899 li(t9, reinterpret_cast<int32_t>(is_profiling_flag)); |
| 3900 lb(t9, MemOperand(t9, 0)); |
| 3901 Branch(&profiler_disabled, eq, t9, Operand(zero_reg)); |
| 3902 |
| 3903 // Additional parameter is the address of the actual callback. |
| 3904 li(t9, Operand(thunk_ref)); |
| 3905 jmp(&end_profiler_check); |
| 3906 |
| 3907 bind(&profiler_disabled); |
| 3908 mov(t9, function_address); |
| 3909 bind(&end_profiler_check); |
| 3910 |
3892 // Allocate HandleScope in callee-save registers. | 3911 // Allocate HandleScope in callee-save registers. |
3893 li(s3, Operand(next_address)); | 3912 li(s3, Operand(next_address)); |
3894 lw(s0, MemOperand(s3, kNextOffset)); | 3913 lw(s0, MemOperand(s3, kNextOffset)); |
3895 lw(s1, MemOperand(s3, kLimitOffset)); | 3914 lw(s1, MemOperand(s3, kLimitOffset)); |
3896 lw(s2, MemOperand(s3, kLevelOffset)); | 3915 lw(s2, MemOperand(s3, kLevelOffset)); |
3897 Addu(s2, s2, Operand(1)); | 3916 Addu(s2, s2, Operand(1)); |
3898 sw(s2, MemOperand(s3, kLevelOffset)); | 3917 sw(s2, MemOperand(s3, kLevelOffset)); |
3899 | 3918 |
3900 if (FLAG_log_timer_events) { | 3919 if (FLAG_log_timer_events) { |
3901 FrameScope frame(this, StackFrame::MANUAL); | 3920 FrameScope frame(this, StackFrame::MANUAL); |
3902 PushSafepointRegisters(); | 3921 PushSafepointRegisters(); |
3903 PrepareCallCFunction(1, a0); | 3922 PrepareCallCFunction(1, a0); |
3904 li(a0, Operand(ExternalReference::isolate_address(isolate()))); | 3923 li(a0, Operand(ExternalReference::isolate_address(isolate()))); |
3905 CallCFunction(ExternalReference::log_enter_external_function(isolate()), 1); | 3924 CallCFunction(ExternalReference::log_enter_external_function(isolate()), 1); |
3906 PopSafepointRegisters(); | 3925 PopSafepointRegisters(); |
3907 } | 3926 } |
3908 | 3927 |
3909 Label profiler_disabled; | |
3910 Label end_profiler_check; | |
3911 bool* is_profiling_flag = | |
3912 isolate()->cpu_profiler()->is_profiling_address(); | |
3913 STATIC_ASSERT(sizeof(*is_profiling_flag) == 1); | |
3914 li(t9, reinterpret_cast<int32_t>(is_profiling_flag)); | |
3915 lb(t9, MemOperand(t9, 0)); | |
3916 beq(t9, zero_reg, &profiler_disabled); | |
3917 | |
3918 // Third parameter is the address of the actual getter function. | |
3919 li(thunk_last_arg, reinterpret_cast<int32_t>(function_address)); | |
3920 li(t9, Operand(thunk_ref)); | |
3921 jmp(&end_profiler_check); | |
3922 | |
3923 bind(&profiler_disabled); | |
3924 li(t9, Operand(function)); | |
3925 | |
3926 bind(&end_profiler_check); | |
3927 | |
3928 // Native call returns to the DirectCEntry stub which redirects to the | 3928 // Native call returns to the DirectCEntry stub which redirects to the |
3929 // return address pushed on stack (could have moved after GC). | 3929 // return address pushed on stack (could have moved after GC). |
3930 // DirectCEntry stub itself is generated early and never moves. | 3930 // DirectCEntry stub itself is generated early and never moves. |
3931 DirectCEntryStub stub; | 3931 DirectCEntryStub stub; |
3932 stub.GenerateCall(this, t9); | 3932 stub.GenerateCall(this, t9); |
3933 | 3933 |
3934 if (FLAG_log_timer_events) { | 3934 if (FLAG_log_timer_events) { |
3935 FrameScope frame(this, StackFrame::MANUAL); | 3935 FrameScope frame(this, StackFrame::MANUAL); |
3936 PushSafepointRegisters(); | 3936 PushSafepointRegisters(); |
3937 PrepareCallCFunction(1, a0); | 3937 PrepareCallCFunction(1, a0); |
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5745 opcode == BGTZL); | 5745 opcode == BGTZL); |
5746 opcode = (cond == eq) ? BEQ : BNE; | 5746 opcode = (cond == eq) ? BEQ : BNE; |
5747 instr = (instr & ~kOpcodeMask) | opcode; | 5747 instr = (instr & ~kOpcodeMask) | opcode; |
5748 masm_.emit(instr); | 5748 masm_.emit(instr); |
5749 } | 5749 } |
5750 | 5750 |
5751 | 5751 |
5752 } } // namespace v8::internal | 5752 } } // namespace v8::internal |
5753 | 5753 |
5754 #endif // V8_TARGET_ARCH_MIPS | 5754 #endif // V8_TARGET_ARCH_MIPS |
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