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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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115 const V8NameConverter& converter, | 115 const V8NameConverter& converter, |
116 byte* begin, | 116 byte* begin, |
117 byte* end) { | 117 byte* end) { |
118 NoHandleAllocation ha; | 118 NoHandleAllocation ha; |
119 AssertNoAllocation no_alloc; | 119 AssertNoAllocation no_alloc; |
120 ExternalReferenceEncoder ref_encoder; | 120 ExternalReferenceEncoder ref_encoder; |
121 Heap* heap = HEAP; | 121 Heap* heap = HEAP; |
122 | 122 |
123 v8::internal::EmbeddedVector<char, 128> decode_buffer; | 123 v8::internal::EmbeddedVector<char, 128> decode_buffer; |
124 v8::internal::EmbeddedVector<char, kOutBufferSize> out_buffer; | 124 v8::internal::EmbeddedVector<char, kOutBufferSize> out_buffer; |
| 125 StringBuilder out(out_buffer.start(), out_buffer.length()); |
125 byte* pc = begin; | 126 byte* pc = begin; |
126 disasm::Disassembler d(converter); | 127 disasm::Disassembler d(converter); |
127 RelocIterator* it = NULL; | 128 RelocIterator* it = NULL; |
128 if (converter.code() != NULL) { | 129 if (converter.code() != NULL) { |
129 it = new RelocIterator(converter.code()); | 130 it = new RelocIterator(converter.code()); |
130 } else { | 131 } else { |
131 // No relocation information when printing code stubs. | 132 // No relocation information when printing code stubs. |
132 } | 133 } |
133 int constants = -1; // no constants being decoded at the start | 134 int constants = -1; // no constants being decoded at the start |
134 | 135 |
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177 } else { | 178 } else { |
178 // For other reloc info collect all data. | 179 // For other reloc info collect all data. |
179 pcs.Add(it->rinfo()->pc()); | 180 pcs.Add(it->rinfo()->pc()); |
180 rmodes.Add(it->rinfo()->rmode()); | 181 rmodes.Add(it->rinfo()->rmode()); |
181 datas.Add(it->rinfo()->data()); | 182 datas.Add(it->rinfo()->data()); |
182 } | 183 } |
183 it->next(); | 184 it->next(); |
184 } | 185 } |
185 } | 186 } |
186 | 187 |
187 StringBuilder out(out_buffer.start(), out_buffer.length()); | |
188 | |
189 // Comments. | 188 // Comments. |
190 for (int i = 0; i < comments.length(); i++) { | 189 for (int i = 0; i < comments.length(); i++) { |
191 out.AddFormatted(" %s", comments[i]); | 190 out.AddFormatted(" %s", comments[i]); |
192 DumpBuffer(f, &out); | 191 DumpBuffer(f, &out); |
193 } | 192 } |
194 | 193 |
195 // Instruction address and instruction offset. | 194 // Instruction address and instruction offset. |
196 out.AddFormatted("%p %4d ", prev_pc, prev_pc - begin); | 195 out.AddFormatted("%p %4d ", prev_pc, prev_pc - begin); |
197 | 196 |
198 // Instruction. | 197 // Instruction. |
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295 } else { | 294 } else { |
296 out.AddFormatted(" ;; deoptimization bailout %d", id); | 295 out.AddFormatted(" ;; deoptimization bailout %d", id); |
297 } | 296 } |
298 } else { | 297 } else { |
299 out.AddFormatted(" ;; %s", RelocInfo::RelocModeName(rmode)); | 298 out.AddFormatted(" ;; %s", RelocInfo::RelocModeName(rmode)); |
300 } | 299 } |
301 } | 300 } |
302 DumpBuffer(f, &out); | 301 DumpBuffer(f, &out); |
303 } | 302 } |
304 | 303 |
| 304 // Emit comments following the last instruction (if any). |
| 305 if (it != NULL) { |
| 306 for ( ; !it->done(); it->next()) { |
| 307 if (RelocInfo::IsComment(it->rinfo()->rmode())) { |
| 308 out.AddFormatted(" %s", |
| 309 reinterpret_cast<const char*>(it->rinfo()->data())); |
| 310 DumpBuffer(f, &out); |
| 311 } |
| 312 } |
| 313 } |
| 314 |
305 delete it; | 315 delete it; |
306 return static_cast<int>(pc - begin); | 316 return static_cast<int>(pc - begin); |
307 } | 317 } |
308 | 318 |
309 | 319 |
310 int Disassembler::Decode(FILE* f, byte* begin, byte* end) { | 320 int Disassembler::Decode(FILE* f, byte* begin, byte* end) { |
311 V8NameConverter defaultConverter(NULL); | 321 V8NameConverter defaultConverter(NULL); |
312 return DecodeIt(f, defaultConverter, begin, end); | 322 return DecodeIt(f, defaultConverter, begin, end); |
313 } | 323 } |
314 | 324 |
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332 | 342 |
333 #else // ENABLE_DISASSEMBLER | 343 #else // ENABLE_DISASSEMBLER |
334 | 344 |
335 void Disassembler::Dump(FILE* f, byte* begin, byte* end) {} | 345 void Disassembler::Dump(FILE* f, byte* begin, byte* end) {} |
336 int Disassembler::Decode(FILE* f, byte* begin, byte* end) { return 0; } | 346 int Disassembler::Decode(FILE* f, byte* begin, byte* end) { return 0; } |
337 void Disassembler::Decode(FILE* f, Code* code) {} | 347 void Disassembler::Decode(FILE* f, Code* code) {} |
338 | 348 |
339 #endif // ENABLE_DISASSEMBLER | 349 #endif // ENABLE_DISASSEMBLER |
340 | 350 |
341 } } // namespace v8::internal | 351 } } // namespace v8::internal |
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