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Issue 303053002: X87: Move LiveEdit-related code. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 6 months ago
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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 #include "v8.h" 5 #include "v8.h"
6 6
7 #if V8_TARGET_ARCH_X87 7 #if V8_TARGET_ARCH_X87
8 8
9 #include "codegen.h" 9 #include "codegen.h"
10 #include "debug.h" 10 #include "debug.h"
(...skipping 49 matching lines...) Expand 10 before | Expand all | Expand 10 after
60 Assembler::kDebugBreakSlotLength - Assembler::kCallInstructionLength); 60 Assembler::kDebugBreakSlotLength - Assembler::kCallInstructionLength);
61 } 61 }
62 62
63 63
64 void BreakLocationIterator::ClearDebugBreakAtSlot() { 64 void BreakLocationIterator::ClearDebugBreakAtSlot() {
65 ASSERT(IsDebugBreakSlot()); 65 ASSERT(IsDebugBreakSlot());
66 rinfo()->PatchCode(original_rinfo()->pc(), Assembler::kDebugBreakSlotLength); 66 rinfo()->PatchCode(original_rinfo()->pc(), Assembler::kDebugBreakSlotLength);
67 } 67 }
68 68
69 69
70 // All debug break stubs support padding for LiveEdit.
71 const bool Debug::FramePaddingLayout::kIsSupported = true;
72
73
74 #define __ ACCESS_MASM(masm) 70 #define __ ACCESS_MASM(masm)
75 71
76 static void Generate_DebugBreakCallHelper(MacroAssembler* masm, 72 static void Generate_DebugBreakCallHelper(MacroAssembler* masm,
77 RegList object_regs, 73 RegList object_regs,
78 RegList non_object_regs, 74 RegList non_object_regs,
79 bool convert_call_to_jmp) { 75 bool convert_call_to_jmp) {
80 // Enter an internal frame. 76 // Enter an internal frame.
81 { 77 {
82 FrameScope scope(masm, StackFrame::INTERNAL); 78 FrameScope scope(masm, StackFrame::INTERNAL);
83 79
84 // Load padding words on stack. 80 // Load padding words on stack.
85 for (int i = 0; i < Debug::FramePaddingLayout::kInitialSize; i++) { 81 for (int i = 0; i < LiveEdit::kFramePaddingInitialSize; i++) {
86 __ push(Immediate(Smi::FromInt( 82 __ push(Immediate(Smi::FromInt(LiveEdit::kFramePaddingValue)));
87 Debug::FramePaddingLayout::kPaddingValue)));
88 } 83 }
89 __ push(Immediate(Smi::FromInt(Debug::FramePaddingLayout::kInitialSize))); 84 __ push(Immediate(Smi::FromInt(LiveEdit::kFramePaddingInitialSize)));
90 85
91 // Store the registers containing live values on the expression stack to 86 // Store the registers containing live values on the expression stack to
92 // make sure that these are correctly updated during GC. Non object values 87 // make sure that these are correctly updated during GC. Non object values
93 // are stored as a smi causing it to be untouched by GC. 88 // are stored as a smi causing it to be untouched by GC.
94 ASSERT((object_regs & ~kJSCallerSaved) == 0); 89 ASSERT((object_regs & ~kJSCallerSaved) == 0);
95 ASSERT((non_object_regs & ~kJSCallerSaved) == 0); 90 ASSERT((non_object_regs & ~kJSCallerSaved) == 0);
96 ASSERT((object_regs & non_object_regs) == 0); 91 ASSERT((object_regs & non_object_regs) == 0);
97 for (int i = 0; i < kNumJSCallerSaved; i++) { 92 for (int i = 0; i < kNumJSCallerSaved; i++) {
98 int r = JSCallerSavedCode(i); 93 int r = JSCallerSavedCode(i);
99 Register reg = { r }; 94 Register reg = { r };
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324 319
325 // Get function code. 320 // Get function code.
326 __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); 321 __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
327 __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset)); 322 __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset));
328 __ lea(edx, FieldOperand(edx, Code::kHeaderSize)); 323 __ lea(edx, FieldOperand(edx, Code::kHeaderSize));
329 324
330 // Re-run JSFunction, edi is function, esi is context. 325 // Re-run JSFunction, edi is function, esi is context.
331 __ jmp(edx); 326 __ jmp(edx);
332 } 327 }
333 328
334 const bool Debug::kFrameDropperSupported = true; 329
330 const bool LiveEdit::kFrameDropperSupported = true;
335 331
336 #undef __ 332 #undef __
337 333
338 } } // namespace v8::internal 334 } } // namespace v8::internal
339 335
340 #endif // V8_TARGET_ARCH_X87 336 #endif // V8_TARGET_ARCH_X87
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