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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_S390 | 7 #if V8_TARGET_ARCH_S390 |
8 | 8 |
9 #include "src/debug/debug.h" | 9 #include "src/debug/debug.h" |
10 | 10 |
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134 } | 134 } |
135 | 135 |
136 void DebugCodegen::GenerateFrameDropperLiveEdit(MacroAssembler* masm) { | 136 void DebugCodegen::GenerateFrameDropperLiveEdit(MacroAssembler* masm) { |
137 // Load the function pointer off of our current stack frame. | 137 // Load the function pointer off of our current stack frame. |
138 __ LoadP(r3, MemOperand(fp, FrameDropperFrameConstants::kFunctionOffset)); | 138 __ LoadP(r3, MemOperand(fp, FrameDropperFrameConstants::kFunctionOffset)); |
139 | 139 |
140 // Pop return address and frame | 140 // Pop return address and frame |
141 __ LeaveFrame(StackFrame::INTERNAL); | 141 __ LeaveFrame(StackFrame::INTERNAL); |
142 | 142 |
143 ParameterCount dummy(0); | 143 ParameterCount dummy(0); |
144 __ FloodFunctionIfStepping(r3, no_reg, dummy, dummy); | 144 __ CheckDebugHook(r3, no_reg, dummy, dummy); |
145 | 145 |
146 // Load context from the function. | 146 // Load context from the function. |
147 __ LoadP(cp, FieldMemOperand(r3, JSFunction::kContextOffset)); | 147 __ LoadP(cp, FieldMemOperand(r3, JSFunction::kContextOffset)); |
148 | 148 |
149 // Clear new.target as a safety measure. | 149 // Clear new.target as a safety measure. |
150 __ LoadRoot(r5, Heap::kUndefinedValueRootIndex); | 150 __ LoadRoot(r5, Heap::kUndefinedValueRootIndex); |
151 | 151 |
152 // Get function code. | 152 // Get function code. |
153 __ LoadP(ip, FieldMemOperand(r3, JSFunction::kSharedFunctionInfoOffset)); | 153 __ LoadP(ip, FieldMemOperand(r3, JSFunction::kSharedFunctionInfoOffset)); |
154 __ LoadP(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset)); | 154 __ LoadP(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset)); |
155 __ AddP(ip, Operand(Code::kHeaderSize - kHeapObjectTag)); | 155 __ AddP(ip, Operand(Code::kHeaderSize - kHeapObjectTag)); |
156 | 156 |
157 // Re-run JSFunction, r3 is function, cp is context. | 157 // Re-run JSFunction, r3 is function, cp is context. |
158 __ Jump(ip); | 158 __ Jump(ip); |
159 } | 159 } |
160 | 160 |
161 const bool LiveEdit::kFrameDropperSupported = true; | 161 const bool LiveEdit::kFrameDropperSupported = true; |
162 | 162 |
163 #undef __ | 163 #undef __ |
164 } // namespace internal | 164 } // namespace internal |
165 } // namespace v8 | 165 } // namespace v8 |
166 | 166 |
167 #endif // V8_TARGET_ARCH_S390 | 167 #endif // V8_TARGET_ARCH_S390 |
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