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

Issue 3186: Refactor the enum RelocMode changing the naming scheme from lower case to... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 12 years, 3 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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41 41
42 namespace v8 { namespace internal { 42 namespace v8 { namespace internal {
43 43
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 || is_code_target(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 && is_call_instruction()) {
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 (is_internal_reference(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 }
65 65
66 66
67 Address RelocInfo::target_address() { 67 Address RelocInfo::target_address() {
68 ASSERT(is_code_target(rmode_) || rmode_ == runtime_entry); 68 ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY);
69 return Assembler::target_address_at(pc_); 69 return Assembler::target_address_at(pc_);
70 } 70 }
71 71
72 72
73 void RelocInfo::set_target_address(Address target) { 73 void RelocInfo::set_target_address(Address target) {
74 ASSERT(is_code_target(rmode_) || rmode_ == runtime_entry); 74 ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY);
75 Assembler::set_target_address_at(pc_, target); 75 Assembler::set_target_address_at(pc_, target);
76 } 76 }
77 77
78 78
79 Object* RelocInfo::target_object() { 79 Object* RelocInfo::target_object() {
80 ASSERT(is_code_target(rmode_) || rmode_ == embedded_object); 80 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
81 return *reinterpret_cast<Object**>(pc_); 81 return *reinterpret_cast<Object**>(pc_);
82 } 82 }
83 83
84 84
85 Object** RelocInfo::target_object_address() { 85 Object** RelocInfo::target_object_address() {
86 ASSERT(is_code_target(rmode_) || rmode_ == embedded_object); 86 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
87 return reinterpret_cast<Object**>(pc_); 87 return reinterpret_cast<Object**>(pc_);
88 } 88 }
89 89
90 90
91 void RelocInfo::set_target_object(Object* target) { 91 void RelocInfo::set_target_object(Object* target) {
92 ASSERT(is_code_target(rmode_) || rmode_ == embedded_object); 92 ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
93 *reinterpret_cast<Object**>(pc_) = target; 93 *reinterpret_cast<Object**>(pc_) = target;
94 } 94 }
95 95
96 96
97 Address* RelocInfo::target_reference_address() { 97 Address* RelocInfo::target_reference_address() {
98 ASSERT(rmode_ == external_reference); 98 ASSERT(rmode_ == RelocInfo::EXTERNAL_REFERENCE);
99 return reinterpret_cast<Address*>(pc_); 99 return reinterpret_cast<Address*>(pc_);
100 } 100 }
101 101
102 102
103 Address RelocInfo::call_address() { 103 Address RelocInfo::call_address() {
104 ASSERT(is_call_instruction()); 104 ASSERT(is_call_instruction());
105 return Assembler::target_address_at(pc_ + 1); 105 return Assembler::target_address_at(pc_ + 1);
106 } 106 }
107 107
108 108
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130 } 130 }
131 131
132 132
133 bool RelocInfo::is_call_instruction() { 133 bool RelocInfo::is_call_instruction() {
134 return *pc_ == 0xE8; 134 return *pc_ == 0xE8;
135 } 135 }
136 136
137 137
138 Immediate::Immediate(int x) { 138 Immediate::Immediate(int x) {
139 x_ = x; 139 x_ = x;
140 rmode_ = no_reloc; 140 rmode_ = RelocInfo::NONE;
141 } 141 }
142 142
143 143
144 Immediate::Immediate(const ExternalReference& ext) { 144 Immediate::Immediate(const ExternalReference& ext) {
145 x_ = reinterpret_cast<int32_t>(ext.address()); 145 x_ = reinterpret_cast<int32_t>(ext.address());
146 rmode_ = external_reference; 146 rmode_ = RelocInfo::EXTERNAL_REFERENCE;
147 } 147 }
148 148
149 Immediate::Immediate(const char* s) { 149 Immediate::Immediate(const char* s) {
150 x_ = reinterpret_cast<int32_t>(s); 150 x_ = reinterpret_cast<int32_t>(s);
151 rmode_ = embedded_string; 151 rmode_ = RelocInfo::EMBEDDED_STRING;
152 } 152 }
153 153
154 154
155 Immediate::Immediate(Handle<Object> handle) { 155 Immediate::Immediate(Handle<Object> handle) {
156 // Verify all Objects referred by code are NOT in new space. 156 // Verify all Objects referred by code are NOT in new space.
157 Object* obj = *handle; 157 Object* obj = *handle;
158 ASSERT(!Heap::InNewSpace(obj)); 158 ASSERT(!Heap::InNewSpace(obj));
159 if (obj->IsHeapObject()) { 159 if (obj->IsHeapObject()) {
160 x_ = reinterpret_cast<intptr_t>(handle.location()); 160 x_ = reinterpret_cast<intptr_t>(handle.location());
161 rmode_ = embedded_object; 161 rmode_ = RelocInfo::EMBEDDED_OBJECT;
162 } else { 162 } else {
163 // no relocation needed 163 // no relocation needed
164 x_ = reinterpret_cast<intptr_t>(obj); 164 x_ = reinterpret_cast<intptr_t>(obj);
165 rmode_ = no_reloc; 165 rmode_ = RelocInfo::NONE;
166 } 166 }
167 } 167 }
168 168
169 169
170 Immediate::Immediate(Smi* value) { 170 Immediate::Immediate(Smi* value) {
171 x_ = reinterpret_cast<intptr_t>(value); 171 x_ = reinterpret_cast<intptr_t>(value);
172 rmode_ = no_reloc; 172 rmode_ = RelocInfo::NONE;
173 } 173 }
174 174
175 175
176 void Assembler::emit(uint32_t x) { 176 void Assembler::emit(uint32_t x) {
177 *reinterpret_cast<uint32_t*>(pc_) = x; 177 *reinterpret_cast<uint32_t*>(pc_) = x;
178 pc_ += sizeof(uint32_t); 178 pc_ += sizeof(uint32_t);
179 } 179 }
180 180
181 181
182 void Assembler::emit(Handle<Object> handle) { 182 void Assembler::emit(Handle<Object> handle) {
183 // Verify all Objects referred by code are NOT in new space. 183 // Verify all Objects referred by code are NOT in new space.
184 Object* obj = *handle; 184 Object* obj = *handle;
185 ASSERT(!Heap::InNewSpace(obj)); 185 ASSERT(!Heap::InNewSpace(obj));
186 if (obj->IsHeapObject()) { 186 if (obj->IsHeapObject()) {
187 emit(reinterpret_cast<intptr_t>(handle.location()), embedded_object); 187 emit(reinterpret_cast<intptr_t>(handle.location()),
188 RelocInfo::EMBEDDED_OBJECT);
188 } else { 189 } else {
189 // no relocation needed 190 // no relocation needed
190 emit(reinterpret_cast<intptr_t>(obj)); 191 emit(reinterpret_cast<intptr_t>(obj));
191 } 192 }
192 } 193 }
193 194
194 195
195 void Assembler::emit(uint32_t x, RelocMode rmode) { 196 void Assembler::emit(uint32_t x, RelocInfo::Mode rmode) {
196 if (rmode != no_reloc) RecordRelocInfo(rmode); 197 if (rmode != RelocInfo::NONE) RecordRelocInfo(rmode);
197 emit(x); 198 emit(x);
198 } 199 }
199 200
200 201
201 void Assembler::emit(const Immediate& x) { 202 void Assembler::emit(const Immediate& x) {
202 if (x.rmode_ != no_reloc) RecordRelocInfo(x.rmode_); 203 if (x.rmode_ != RelocInfo::NONE) RecordRelocInfo(x.rmode_);
203 emit(x.x_); 204 emit(x.x_);
204 } 205 }
205 206
206 207
207 Address Assembler::target_address_at(Address pc) { 208 Address Assembler::target_address_at(Address pc) {
208 return pc + sizeof(int32_t) + *reinterpret_cast<int32_t*>(pc); 209 return pc + sizeof(int32_t) + *reinterpret_cast<int32_t*>(pc);
209 } 210 }
210 211
211 212
212 void Assembler::set_target_address_at(Address pc, Address target) { 213 void Assembler::set_target_address_at(Address pc, Address target) {
(...skipping 21 matching lines...) Expand all
234 235
235 236
236 void Operand::set_modrm(int mod, // reg == 0 237 void Operand::set_modrm(int mod, // reg == 0
237 Register rm) { 238 Register rm) {
238 ASSERT((mod & -4) == 0); 239 ASSERT((mod & -4) == 0);
239 buf_[0] = mod << 6 | rm.code(); 240 buf_[0] = mod << 6 | rm.code();
240 len_ = 1; 241 len_ = 1;
241 } 242 }
242 243
243 244
244 void Operand::set_dispr(int32_t disp, RelocMode rmode) { 245 void Operand::set_dispr(int32_t disp, RelocInfo::Mode rmode) {
245 ASSERT(len_ == 1 || len_ == 2); 246 ASSERT(len_ == 1 || len_ == 2);
246 *reinterpret_cast<int32_t*>(&buf_[len_]) = disp; 247 *reinterpret_cast<int32_t*>(&buf_[len_]) = disp;
247 len_ += sizeof(int32_t); 248 len_ += sizeof(int32_t);
248 rmode_ = rmode; 249 rmode_ = rmode;
249 } 250 }
250 251
251 Operand::Operand(Register reg) { 252 Operand::Operand(Register reg) {
252 // reg 253 // reg
253 set_modrm(3, reg); 254 set_modrm(3, reg);
254 } 255 }
255 256
256 257
257 Operand::Operand(int32_t disp, RelocMode rmode) { 258 Operand::Operand(int32_t disp, RelocInfo::Mode rmode) {
258 // [disp/r] 259 // [disp/r]
259 set_modrm(0, ebp); 260 set_modrm(0, ebp);
260 set_dispr(disp, rmode); 261 set_dispr(disp, rmode);
261 } 262 }
262 263
263 } } // namespace v8::internal 264 } } // namespace v8::internal
264 265
265 #endif // V8_ASSEMBLER_IA32_INL_H_ 266 #endif // V8_ASSEMBLER_IA32_INL_H_
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