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Issue 2069013: Orthogonalize the byte codes used for the snapshot so that... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 7 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 5 // modification, are permitted provided that the following conditions
6 // are met: 6 // are 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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101 #endif 101 #endif
102 } 102 }
103 103
104 104
105 // ----------------------------------------------------------------------------- 105 // -----------------------------------------------------------------------------
106 // Implementation of RelocInfo 106 // Implementation of RelocInfo
107 107
108 const int RelocInfo::kApplyMask = 0; 108 const int RelocInfo::kApplyMask = 0;
109 109
110 110
111 bool RelocInfo::IsCodedSpecially() {
112 // The deserializer needs to know whether a pointer is specially coded. Being
113 // specially coded on ARM means that it is a movw/movt instruction. We don't
114 // generate those yet.
115 return false;
116 }
117
118
119
111 void RelocInfo::PatchCode(byte* instructions, int instruction_count) { 120 void RelocInfo::PatchCode(byte* instructions, int instruction_count) {
112 // Patch the code at the current address with the supplied instructions. 121 // Patch the code at the current address with the supplied instructions.
113 Instr* pc = reinterpret_cast<Instr*>(pc_); 122 Instr* pc = reinterpret_cast<Instr*>(pc_);
114 Instr* instr = reinterpret_cast<Instr*>(instructions); 123 Instr* instr = reinterpret_cast<Instr*>(instructions);
115 for (int i = 0; i < instruction_count; i++) { 124 for (int i = 0; i < instruction_count; i++) {
116 *(pc + i) = *(instr + i); 125 *(pc + i) = *(instr + i);
117 } 126 }
118 127
119 // Indicate that code has changed. 128 // Indicate that code has changed.
120 CPU::FlushICache(pc_, instruction_count * Assembler::kInstrSize); 129 CPU::FlushICache(pc_, instruction_count * Assembler::kInstrSize);
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2261 2270
2262 // Since a constant pool was just emitted, move the check offset forward by 2271 // Since a constant pool was just emitted, move the check offset forward by
2263 // the standard interval. 2272 // the standard interval.
2264 next_buffer_check_ = pc_offset() + kCheckConstInterval; 2273 next_buffer_check_ = pc_offset() + kCheckConstInterval;
2265 } 2274 }
2266 2275
2267 2276
2268 } } // namespace v8::internal 2277 } } // namespace v8::internal
2269 2278
2270 #endif // V8_TARGET_ARCH_ARM && V8_ARM_VARIANT_ARM 2279 #endif // V8_TARGET_ARCH_ARM && V8_ARM_VARIANT_ARM
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