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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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_PPC | 5 #if V8_TARGET_ARCH_PPC |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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962 // o r6: the new target | 962 // o r6: the new target |
963 // o cp: our context | 963 // o cp: our context |
964 // o pp: the caller's constant pool pointer (if enabled) | 964 // o pp: the caller's constant pool pointer (if enabled) |
965 // o fp: the caller's frame pointer | 965 // o fp: the caller's frame pointer |
966 // o sp: stack pointer | 966 // o sp: stack pointer |
967 // o lr: return address | 967 // o lr: return address |
968 // | 968 // |
969 // The function builds an interpreter frame. See InterpreterFrameConstants in | 969 // The function builds an interpreter frame. See InterpreterFrameConstants in |
970 // frames.h for its layout. | 970 // frames.h for its layout. |
971 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { | 971 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
| 972 ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 973 |
972 // Open a frame scope to indicate that there is a frame on the stack. The | 974 // Open a frame scope to indicate that there is a frame on the stack. The |
973 // MANUAL indicates that the scope shouldn't actually generate code to set up | 975 // MANUAL indicates that the scope shouldn't actually generate code to set up |
974 // the frame (that is done below). | 976 // the frame (that is done below). |
975 FrameScope frame_scope(masm, StackFrame::MANUAL); | 977 FrameScope frame_scope(masm, StackFrame::MANUAL); |
976 __ PushStandardFrame(r4); | 978 __ PushStandardFrame(r4); |
977 | 979 |
978 // Get the bytecode array from the function object and load the pointer to the | 980 // Get the bytecode array from the function object and load the pointer to the |
979 // first entry into kInterpreterBytecodeRegister. | 981 // first entry into kInterpreterBytecodeRegister. |
980 __ LoadP(r3, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset)); | 982 __ LoadP(r3, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset)); |
981 Label array_done; | 983 Label array_done; |
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1026 __ LoadRoot(r6, Heap::kUndefinedValueRootIndex); | 1028 __ LoadRoot(r6, Heap::kUndefinedValueRootIndex); |
1027 __ ShiftRightImm(r5, r5, Operand(kPointerSizeLog2), SetRC); | 1029 __ ShiftRightImm(r5, r5, Operand(kPointerSizeLog2), SetRC); |
1028 __ beq(&no_args, cr0); | 1030 __ beq(&no_args, cr0); |
1029 __ mtctr(r5); | 1031 __ mtctr(r5); |
1030 __ bind(&loop); | 1032 __ bind(&loop); |
1031 __ push(r6); | 1033 __ push(r6); |
1032 __ bdnz(&loop); | 1034 __ bdnz(&loop); |
1033 __ bind(&no_args); | 1035 __ bind(&no_args); |
1034 } | 1036 } |
1035 | 1037 |
1036 // TODO(rmcilroy): List of things not currently dealt with here but done in | |
1037 // fullcodegen's prologue: | |
1038 // - Call ProfileEntryHookStub when isolate has a function_entry_hook. | |
1039 // - Code aging of the BytecodeArray object. | |
1040 | |
1041 // Load accumulator, register file, bytecode offset, dispatch table into | 1038 // Load accumulator, register file, bytecode offset, dispatch table into |
1042 // registers. | 1039 // registers. |
1043 __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); | 1040 __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
1044 __ addi(kInterpreterRegisterFileRegister, fp, | 1041 __ addi(kInterpreterRegisterFileRegister, fp, |
1045 Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp)); | 1042 Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
1046 __ mov(kInterpreterBytecodeOffsetRegister, | 1043 __ mov(kInterpreterBytecodeOffsetRegister, |
1047 Operand(BytecodeArray::kHeaderSize - kHeapObjectTag)); | 1044 Operand(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
1048 __ mov(kInterpreterDispatchTableRegister, | 1045 __ mov(kInterpreterDispatchTableRegister, |
1049 Operand(ExternalReference::interpreter_dispatch_table_address( | 1046 Operand(ExternalReference::interpreter_dispatch_table_address( |
1050 masm->isolate()))); | 1047 masm->isolate()))); |
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2715 __ bkpt(0); | 2712 __ bkpt(0); |
2716 } | 2713 } |
2717 } | 2714 } |
2718 | 2715 |
2719 | 2716 |
2720 #undef __ | 2717 #undef __ |
2721 } // namespace internal | 2718 } // namespace internal |
2722 } // namespace v8 | 2719 } // namespace v8 |
2723 | 2720 |
2724 #endif // V8_TARGET_ARCH_PPC | 2721 #endif // V8_TARGET_ARCH_PPC |
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