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Side by Side Diff: src/assembler-ia32-inl.h

Issue 20176: Moved some IA32 specific code from to the architecture dependent part of the ... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 11 years, 10 months ago
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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. 1 // Copyright (c) 1994-2006 Sun Microsystems Inc.
2 // All Rights Reserved. 2 // All Rights Reserved.
3 // 3 //
4 // Redistribution and use in source and binary forms, with or without 4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are 5 // modification, are permitted provided that the following conditions are
6 // met: 6 // met:
7 // 7 //
8 // - Redistributions of source code must retain the above copyright notice, 8 // - Redistributions of source code must retain the above copyright notice,
9 // this list of conditions and the following disclaimer. 9 // this list of conditions and the following disclaimer.
10 // 10 //
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44 Condition NegateCondition(Condition cc) { 44 Condition NegateCondition(Condition cc) {
45 return static_cast<Condition>(cc ^ 1); 45 return static_cast<Condition>(cc ^ 1);
46 } 46 }
47 47
48 48
49 // The modes possibly affected by apply must be in kApplyMask. 49 // The modes possibly affected by apply must be in kApplyMask.
50 void RelocInfo::apply(int delta) { 50 void RelocInfo::apply(int delta) {
51 if (rmode_ == RUNTIME_ENTRY || IsCodeTarget(rmode_)) { 51 if (rmode_ == RUNTIME_ENTRY || IsCodeTarget(rmode_)) {
52 int32_t* p = reinterpret_cast<int32_t*>(pc_); 52 int32_t* p = reinterpret_cast<int32_t*>(pc_);
53 *p -= delta; // relocate entry 53 *p -= delta; // relocate entry
54 } else if (rmode_ == JS_RETURN && is_call_instruction()) { 54 } else if (rmode_ == JS_RETURN && IsCallInstruction()) {
55 // Special handling of js_return when a break point is set (call 55 // Special handling of js_return when a break point is set (call
56 // instruction has been inserted). 56 // instruction has been inserted).
57 int32_t* p = reinterpret_cast<int32_t*>(pc_ + 1); 57 int32_t* p = reinterpret_cast<int32_t*>(pc_ + 1);
58 *p -= delta; // relocate entry 58 *p -= delta; // relocate entry
59 } else if (IsInternalReference(rmode_)) { 59 } else if (IsInternalReference(rmode_)) {
60 // absolute code pointer inside code object moves with the code object. 60 // absolute code pointer inside code object moves with the code object.
61 int32_t* p = reinterpret_cast<int32_t*>(pc_); 61 int32_t* p = reinterpret_cast<int32_t*>(pc_);
62 *p += delta; // relocate entry 62 *p += delta; // relocate entry
63 } 63 }
64 } 64 }
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100 } 100 }
101 101
102 102
103 Address* RelocInfo::target_reference_address() { 103 Address* RelocInfo::target_reference_address() {
104 ASSERT(rmode_ == RelocInfo::EXTERNAL_REFERENCE); 104 ASSERT(rmode_ == RelocInfo::EXTERNAL_REFERENCE);
105 return reinterpret_cast<Address*>(pc_); 105 return reinterpret_cast<Address*>(pc_);
106 } 106 }
107 107
108 108
109 Address RelocInfo::call_address() { 109 Address RelocInfo::call_address() {
110 ASSERT(is_call_instruction()); 110 ASSERT(IsCallInstruction());
111 return Assembler::target_address_at(pc_ + 1); 111 return Assembler::target_address_at(pc_ + 1);
112 } 112 }
113 113
114 114
115 void RelocInfo::set_call_address(Address target) { 115 void RelocInfo::set_call_address(Address target) {
116 ASSERT(is_call_instruction()); 116 ASSERT(IsCallInstruction());
117 Assembler::set_target_address_at(pc_ + 1, target); 117 Assembler::set_target_address_at(pc_ + 1, target);
118 } 118 }
119 119
120 120
121 Object* RelocInfo::call_object() { 121 Object* RelocInfo::call_object() {
122 ASSERT(is_call_instruction()); 122 ASSERT(IsCallInstruction());
123 return *call_object_address(); 123 return *call_object_address();
124 } 124 }
125 125
126 126
127 Object** RelocInfo::call_object_address() { 127 Object** RelocInfo::call_object_address() {
128 ASSERT(is_call_instruction()); 128 ASSERT(IsCallInstruction());
129 return reinterpret_cast<Object**>(pc_ + 1); 129 return reinterpret_cast<Object**>(pc_ + 1);
130 } 130 }
131 131
132 132
133 void RelocInfo::set_call_object(Object* target) { 133 void RelocInfo::set_call_object(Object* target) {
134 ASSERT(is_call_instruction()); 134 ASSERT(IsCallInstruction());
135 *call_object_address() = target; 135 *call_object_address() = target;
136 } 136 }
137 137
138 138
139 bool RelocInfo::is_call_instruction() { 139 bool RelocInfo::IsCallInstruction() {
140 return *pc_ == 0xE8; 140 return *pc_ == 0xE8;
141 } 141 }
142 142
143 143
144 Immediate::Immediate(int x) { 144 Immediate::Immediate(int x) {
145 x_ = x; 145 x_ = x;
146 rmode_ = RelocInfo::NONE; 146 rmode_ = RelocInfo::NONE;
147 } 147 }
148 148
149 149
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292 292
293 Operand::Operand(int32_t disp, RelocInfo::Mode rmode) { 293 Operand::Operand(int32_t disp, RelocInfo::Mode rmode) {
294 // [disp/r] 294 // [disp/r]
295 set_modrm(0, ebp); 295 set_modrm(0, ebp);
296 set_dispr(disp, rmode); 296 set_dispr(disp, rmode);
297 } 297 }
298 298
299 } } // namespace v8::internal 299 } } // namespace v8::internal
300 300
301 #endif // V8_ASSEMBLER_IA32_INL_H_ 301 #endif // V8_ASSEMBLER_IA32_INL_H_
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