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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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58 | 58 |
59 | 59 |
60 class V8NameConverter: public disasm::NameConverter { | 60 class V8NameConverter: public disasm::NameConverter { |
61 public: | 61 public: |
62 explicit V8NameConverter(Code* code) : code_(code) {} | 62 explicit V8NameConverter(Code* code) : code_(code) {} |
63 virtual const char* NameOfAddress(byte* pc) const; | 63 virtual const char* NameOfAddress(byte* pc) const; |
64 virtual const char* NameInCode(byte* addr) const; | 64 virtual const char* NameInCode(byte* addr) const; |
65 Code* code() const { return code_; } | 65 Code* code() const { return code_; } |
66 private: | 66 private: |
67 Code* code_; | 67 Code* code_; |
| 68 |
| 69 EmbeddedVector<char, 128> v8_buffer_; |
68 }; | 70 }; |
69 | 71 |
70 | 72 |
71 const char* V8NameConverter::NameOfAddress(byte* pc) const { | 73 const char* V8NameConverter::NameOfAddress(byte* pc) const { |
72 static v8::internal::EmbeddedVector<char, 128> buffer; | 74 const char* name = Isolate::Current()->builtins()->Lookup(pc); |
73 | |
74 const char* name = Builtins::Lookup(pc); | |
75 if (name != NULL) { | 75 if (name != NULL) { |
76 OS::SNPrintF(buffer, "%s (%p)", name, pc); | 76 OS::SNPrintF(v8_buffer_, "%s (%p)", name, pc); |
77 return buffer.start(); | 77 return v8_buffer_.start(); |
78 } | 78 } |
79 | 79 |
80 if (code_ != NULL) { | 80 if (code_ != NULL) { |
81 int offs = static_cast<int>(pc - code_->instruction_start()); | 81 int offs = static_cast<int>(pc - code_->instruction_start()); |
82 // print as code offset, if it seems reasonable | 82 // print as code offset, if it seems reasonable |
83 if (0 <= offs && offs < code_->instruction_size()) { | 83 if (0 <= offs && offs < code_->instruction_size()) { |
84 OS::SNPrintF(buffer, "%d (%p)", offs, pc); | 84 OS::SNPrintF(v8_buffer_, "%d (%p)", offs, pc); |
85 return buffer.start(); | 85 return v8_buffer_.start(); |
86 } | 86 } |
87 } | 87 } |
88 | 88 |
89 return disasm::NameConverter::NameOfAddress(pc); | 89 return disasm::NameConverter::NameOfAddress(pc); |
90 } | 90 } |
91 | 91 |
92 | 92 |
93 const char* V8NameConverter::NameInCode(byte* addr) const { | 93 const char* V8NameConverter::NameInCode(byte* addr) const { |
94 // The V8NameConverter is used for well known code, so we can "safely" | 94 // The V8NameConverter is used for well known code, so we can "safely" |
95 // dereference pointers in generated code. | 95 // dereference pointers in generated code. |
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108 static const int kOutBufferSize = 2048 + String::kMaxShortPrintLength; | 108 static const int kOutBufferSize = 2048 + String::kMaxShortPrintLength; |
109 static const int kRelocInfoPosition = 57; | 109 static const int kRelocInfoPosition = 57; |
110 | 110 |
111 static int DecodeIt(FILE* f, | 111 static int DecodeIt(FILE* f, |
112 const V8NameConverter& converter, | 112 const V8NameConverter& converter, |
113 byte* begin, | 113 byte* begin, |
114 byte* end) { | 114 byte* end) { |
115 NoHandleAllocation ha; | 115 NoHandleAllocation ha; |
116 AssertNoAllocation no_alloc; | 116 AssertNoAllocation no_alloc; |
117 ExternalReferenceEncoder ref_encoder; | 117 ExternalReferenceEncoder ref_encoder; |
| 118 Heap* heap = HEAP; |
118 | 119 |
119 v8::internal::EmbeddedVector<char, 128> decode_buffer; | 120 v8::internal::EmbeddedVector<char, 128> decode_buffer; |
120 v8::internal::EmbeddedVector<char, kOutBufferSize> out_buffer; | 121 v8::internal::EmbeddedVector<char, kOutBufferSize> out_buffer; |
121 byte* pc = begin; | 122 byte* pc = begin; |
122 disasm::Disassembler d(converter); | 123 disasm::Disassembler d(converter); |
123 RelocIterator* it = NULL; | 124 RelocIterator* it = NULL; |
124 if (converter.code() != NULL) { | 125 if (converter.code() != NULL) { |
125 it = new RelocIterator(converter.code()); | 126 it = new RelocIterator(converter.code()); |
126 } else { | 127 } else { |
127 // No relocation information when printing code stubs. | 128 // No relocation information when printing code stubs. |
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249 } | 250 } |
250 if (code->ic_in_loop() == IN_LOOP) { | 251 if (code->ic_in_loop() == IN_LOOP) { |
251 out.AddFormatted(", in_loop"); | 252 out.AddFormatted(", in_loop"); |
252 } | 253 } |
253 if (kind == Code::CALL_IC || kind == Code::KEYED_CALL_IC) { | 254 if (kind == Code::CALL_IC || kind == Code::KEYED_CALL_IC) { |
254 out.AddFormatted(", argc = %d", code->arguments_count()); | 255 out.AddFormatted(", argc = %d", code->arguments_count()); |
255 } | 256 } |
256 } else if (kind == Code::STUB) { | 257 } else if (kind == Code::STUB) { |
257 // Reverse lookup required as the minor key cannot be retrieved | 258 // Reverse lookup required as the minor key cannot be retrieved |
258 // from the code object. | 259 // from the code object. |
259 Object* obj = Heap::code_stubs()->SlowReverseLookup(code); | 260 Object* obj = heap->code_stubs()->SlowReverseLookup(code); |
260 if (obj != Heap::undefined_value()) { | 261 if (obj != heap->undefined_value()) { |
261 ASSERT(obj->IsSmi()); | 262 ASSERT(obj->IsSmi()); |
262 // Get the STUB key and extract major and minor key. | 263 // Get the STUB key and extract major and minor key. |
263 uint32_t key = Smi::cast(obj)->value(); | 264 uint32_t key = Smi::cast(obj)->value(); |
264 uint32_t minor_key = CodeStub::MinorKeyFromKey(key); | 265 uint32_t minor_key = CodeStub::MinorKeyFromKey(key); |
265 CodeStub::Major major_key = CodeStub::GetMajorKey(code); | 266 CodeStub::Major major_key = CodeStub::GetMajorKey(code); |
266 ASSERT(major_key == CodeStub::MajorKeyFromKey(key)); | 267 ASSERT(major_key == CodeStub::MajorKeyFromKey(key)); |
267 out.AddFormatted(" %s, %s, ", | 268 out.AddFormatted(" %s, %s, ", |
268 Code::Kind2String(kind), | 269 Code::Kind2String(kind), |
269 CodeStub::MajorName(major_key, false)); | 270 CodeStub::MajorName(major_key, false)); |
270 switch (major_key) { | 271 switch (major_key) { |
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329 | 330 |
330 #else // ENABLE_DISASSEMBLER | 331 #else // ENABLE_DISASSEMBLER |
331 | 332 |
332 void Disassembler::Dump(FILE* f, byte* begin, byte* end) {} | 333 void Disassembler::Dump(FILE* f, byte* begin, byte* end) {} |
333 int Disassembler::Decode(FILE* f, byte* begin, byte* end) { return 0; } | 334 int Disassembler::Decode(FILE* f, byte* begin, byte* end) { return 0; } |
334 void Disassembler::Decode(FILE* f, Code* code) {} | 335 void Disassembler::Decode(FILE* f, Code* code) {} |
335 | 336 |
336 #endif // ENABLE_DISASSEMBLER | 337 #endif // ENABLE_DISASSEMBLER |
337 | 338 |
338 } } // namespace v8::internal | 339 } } // namespace v8::internal |
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