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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 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_PPC | 7 #if V8_TARGET_ARCH_PPC |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/debug.h" | 10 #include "src/debug.h" |
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101 } | 101 } |
102 | 102 |
103 | 103 |
104 #define __ ACCESS_MASM(masm) | 104 #define __ ACCESS_MASM(masm) |
105 | 105 |
106 | 106 |
107 static void Generate_DebugBreakCallHelper(MacroAssembler* masm, | 107 static void Generate_DebugBreakCallHelper(MacroAssembler* masm, |
108 RegList object_regs, | 108 RegList object_regs, |
109 RegList non_object_regs) { | 109 RegList non_object_regs) { |
110 { | 110 { |
111 FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); | 111 FrameScope scope(masm, StackFrame::INTERNAL); |
112 | 112 |
113 // Load padding words on stack. | 113 // Load padding words on stack. |
114 __ LoadSmiLiteral(ip, Smi::FromInt(LiveEdit::kFramePaddingValue)); | 114 __ LoadSmiLiteral(ip, Smi::FromInt(LiveEdit::kFramePaddingValue)); |
115 for (int i = 0; i < LiveEdit::kFramePaddingInitialSize; i++) { | 115 for (int i = 0; i < LiveEdit::kFramePaddingInitialSize; i++) { |
116 __ push(ip); | 116 __ push(ip); |
117 } | 117 } |
118 __ LoadSmiLiteral(ip, Smi::FromInt(LiveEdit::kFramePaddingInitialSize)); | 118 __ LoadSmiLiteral(ip, Smi::FromInt(LiveEdit::kFramePaddingInitialSize)); |
119 __ push(ip); | 119 __ push(ip); |
120 | 120 |
121 // Store the registers containing live values on the expression stack to | 121 // Store the registers containing live values on the expression stack to |
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310 ExternalReference::debug_restarter_frame_function_pointer_address( | 310 ExternalReference::debug_restarter_frame_function_pointer_address( |
311 masm->isolate()); | 311 masm->isolate()); |
312 __ mov(ip, Operand(restarter_frame_function_slot)); | 312 __ mov(ip, Operand(restarter_frame_function_slot)); |
313 __ li(r4, Operand::Zero()); | 313 __ li(r4, Operand::Zero()); |
314 __ StoreP(r4, MemOperand(ip, 0)); | 314 __ StoreP(r4, MemOperand(ip, 0)); |
315 | 315 |
316 // Load the function pointer off of our current stack frame. | 316 // Load the function pointer off of our current stack frame. |
317 __ LoadP(r4, MemOperand(fp, StandardFrameConstants::kConstantPoolOffset - | 317 __ LoadP(r4, MemOperand(fp, StandardFrameConstants::kConstantPoolOffset - |
318 kPointerSize)); | 318 kPointerSize)); |
319 | 319 |
320 // Pop return address, frame and constant pool pointer (if | 320 // Pop return address and frame |
321 // FLAG_enable_ool_constant_pool). | |
322 __ LeaveFrame(StackFrame::INTERNAL); | 321 __ LeaveFrame(StackFrame::INTERNAL); |
323 | 322 |
324 // Load context from the function. | 323 // Load context from the function. |
325 __ LoadP(cp, FieldMemOperand(r4, JSFunction::kContextOffset)); | 324 __ LoadP(cp, FieldMemOperand(r4, JSFunction::kContextOffset)); |
326 | 325 |
327 // Get function code. | 326 // Get function code. |
328 __ LoadP(ip, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset)); | 327 __ LoadP(ip, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset)); |
329 __ LoadP(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset)); | 328 __ LoadP(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset)); |
330 __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag)); | 329 __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag)); |
331 | 330 |
332 // Re-run JSFunction, r4 is function, cp is context. | 331 // Re-run JSFunction, r4 is function, cp is context. |
333 __ Jump(ip); | 332 __ Jump(ip); |
334 } | 333 } |
335 | 334 |
336 | 335 |
337 const bool LiveEdit::kFrameDropperSupported = true; | 336 const bool LiveEdit::kFrameDropperSupported = true; |
338 | 337 |
339 #undef __ | 338 #undef __ |
340 } | 339 } |
341 } // namespace v8::internal | 340 } // namespace v8::internal |
342 | 341 |
343 #endif // V8_TARGET_ARCH_PPC | 342 #endif // V8_TARGET_ARCH_PPC |
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