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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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30 #include "bootstrapper.h" | 30 #include "bootstrapper.h" |
31 #include "code-stubs.h" | 31 #include "code-stubs.h" |
32 #include "factory.h" | 32 #include "factory.h" |
33 #include "gdb-jit.h" | 33 #include "gdb-jit.h" |
34 #include "macro-assembler.h" | 34 #include "macro-assembler.h" |
35 | 35 |
36 namespace v8 { | 36 namespace v8 { |
37 namespace internal { | 37 namespace internal { |
38 | 38 |
39 bool CodeStub::FindCodeInCache(Code** code_out) { | 39 bool CodeStub::FindCodeInCache(Code** code_out) { |
40 int index = Heap::code_stubs()->FindEntry(GetKey()); | 40 int index = HEAP->code_stubs()->FindEntry(GetKey()); |
41 if (index != NumberDictionary::kNotFound) { | 41 if (index != NumberDictionary::kNotFound) { |
42 *code_out = Code::cast(Heap::code_stubs()->ValueAt(index)); | 42 *code_out = Code::cast(HEAP->code_stubs()->ValueAt(index)); |
43 return true; | 43 return true; |
44 } | 44 } |
45 return false; | 45 return false; |
46 } | 46 } |
47 | 47 |
48 | 48 |
49 void CodeStub::GenerateCode(MacroAssembler* masm) { | 49 void CodeStub::GenerateCode(MacroAssembler* masm) { |
50 // Update the static counter each time a new code stub is generated. | 50 // Update the static counter each time a new code stub is generated. |
51 Counters::code_stubs.Increment(); | 51 COUNTERS->code_stubs()->Increment(); |
52 | 52 |
53 // Nested stubs are not allowed for leafs. | 53 // Nested stubs are not allowed for leafs. |
54 AllowStubCallsScope allow_scope(masm, AllowsStubCalls()); | 54 AllowStubCallsScope allow_scope(masm, AllowsStubCalls()); |
55 | 55 |
56 // Generate the code for the stub. | 56 // Generate the code for the stub. |
57 masm->set_generating_stub(true); | 57 masm->set_generating_stub(true); |
58 Generate(masm); | 58 Generate(masm); |
59 } | 59 } |
60 | 60 |
61 | 61 |
62 void CodeStub::RecordCodeGeneration(Code* code, MacroAssembler* masm) { | 62 void CodeStub::RecordCodeGeneration(Code* code, MacroAssembler* masm) { |
63 code->set_major_key(MajorKey()); | 63 code->set_major_key(MajorKey()); |
64 | 64 |
65 PROFILE(CodeCreateEvent(Logger::STUB_TAG, code, GetName())); | 65 PROFILE(ISOLATE, CodeCreateEvent(Logger::STUB_TAG, code, GetName())); |
66 GDBJIT(AddCode(GDBJITInterface::STUB, GetName(), code)); | 66 GDBJIT(AddCode(GDBJITInterface::STUB, GetName(), code)); |
67 Counters::total_stubs_code_size.Increment(code->instruction_size()); | 67 COUNTERS->total_stubs_code_size()->Increment(code->instruction_size()); |
68 | 68 |
69 #ifdef ENABLE_DISASSEMBLER | 69 #ifdef ENABLE_DISASSEMBLER |
70 if (FLAG_print_code_stubs) { | 70 if (FLAG_print_code_stubs) { |
71 #ifdef DEBUG | 71 #ifdef DEBUG |
72 Print(); | 72 Print(); |
73 #endif | 73 #endif |
74 code->Disassemble(GetName()); | 74 code->Disassemble(GetName()); |
75 PrintF("\n"); | 75 PrintF("\n"); |
76 } | 76 } |
77 #endif | 77 #endif |
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94 | 94 |
95 // Create the code object. | 95 // Create the code object. |
96 CodeDesc desc; | 96 CodeDesc desc; |
97 masm.GetCode(&desc); | 97 masm.GetCode(&desc); |
98 | 98 |
99 // Copy the generated code into a heap object. | 99 // Copy the generated code into a heap object. |
100 Code::Flags flags = Code::ComputeFlags( | 100 Code::Flags flags = Code::ComputeFlags( |
101 static_cast<Code::Kind>(GetCodeKind()), | 101 static_cast<Code::Kind>(GetCodeKind()), |
102 InLoop(), | 102 InLoop(), |
103 GetICState()); | 103 GetICState()); |
104 Handle<Code> new_object = Factory::NewCode( | 104 Handle<Code> new_object = FACTORY->NewCode( |
105 desc, flags, masm.CodeObject(), NeedsImmovableCode()); | 105 desc, flags, masm.CodeObject(), NeedsImmovableCode()); |
106 RecordCodeGeneration(*new_object, &masm); | 106 RecordCodeGeneration(*new_object, &masm); |
107 FinishCode(*new_object); | 107 FinishCode(*new_object); |
108 | 108 |
109 // Update the dictionary and the root in Heap. | 109 // Update the dictionary and the root in Heap. |
110 Handle<NumberDictionary> dict = | 110 Handle<NumberDictionary> dict = |
111 Factory::DictionaryAtNumberPut( | 111 FACTORY->DictionaryAtNumberPut( |
112 Handle<NumberDictionary>(Heap::code_stubs()), | 112 Handle<NumberDictionary>(HEAP->code_stubs()), |
113 GetKey(), | 113 GetKey(), |
114 new_object); | 114 new_object); |
115 Heap::public_set_code_stubs(*dict); | 115 HEAP->public_set_code_stubs(*dict); |
116 | 116 |
117 code = *new_object; | 117 code = *new_object; |
118 } | 118 } |
119 | 119 |
120 ASSERT(!NeedsImmovableCode() || Heap::lo_space()->Contains(code)); | 120 ASSERT(!NeedsImmovableCode() || HEAP->lo_space()->Contains(code)); |
121 return Handle<Code>(code); | 121 return Handle<Code>(code); |
122 } | 122 } |
123 | 123 |
124 | 124 |
125 MaybeObject* CodeStub::TryGetCode() { | 125 MaybeObject* CodeStub::TryGetCode() { |
126 Code* code; | 126 Code* code; |
127 if (!FindCodeInCache(&code)) { | 127 if (!FindCodeInCache(&code)) { |
128 // Generate the new code. | 128 // Generate the new code. |
129 MacroAssembler masm(NULL, 256); | 129 MacroAssembler masm(NULL, 256); |
130 GenerateCode(&masm); | 130 GenerateCode(&masm); |
131 | 131 |
132 // Create the code object. | 132 // Create the code object. |
133 CodeDesc desc; | 133 CodeDesc desc; |
134 masm.GetCode(&desc); | 134 masm.GetCode(&desc); |
135 | 135 |
136 // Try to copy the generated code into a heap object. | 136 // Try to copy the generated code into a heap object. |
137 Code::Flags flags = Code::ComputeFlags( | 137 Code::Flags flags = Code::ComputeFlags( |
138 static_cast<Code::Kind>(GetCodeKind()), | 138 static_cast<Code::Kind>(GetCodeKind()), |
139 InLoop(), | 139 InLoop(), |
140 GetICState()); | 140 GetICState()); |
141 Object* new_object; | 141 Object* new_object; |
142 { MaybeObject* maybe_new_object = | 142 { MaybeObject* maybe_new_object = |
143 Heap::CreateCode(desc, flags, masm.CodeObject()); | 143 HEAP->CreateCode(desc, flags, masm.CodeObject()); |
144 if (!maybe_new_object->ToObject(&new_object)) return maybe_new_object; | 144 if (!maybe_new_object->ToObject(&new_object)) return maybe_new_object; |
145 } | 145 } |
146 code = Code::cast(new_object); | 146 code = Code::cast(new_object); |
147 RecordCodeGeneration(code, &masm); | 147 RecordCodeGeneration(code, &masm); |
148 FinishCode(code); | 148 FinishCode(code); |
149 | 149 |
150 // Try to update the code cache but do not fail if unable. | 150 // Try to update the code cache but do not fail if unable. |
151 MaybeObject* maybe_new_object = | 151 MaybeObject* maybe_new_object = |
152 Heap::code_stubs()->AtNumberPut(GetKey(), code); | 152 HEAP->code_stubs()->AtNumberPut(GetKey(), code); |
153 if (maybe_new_object->ToObject(&new_object)) { | 153 if (maybe_new_object->ToObject(&new_object)) { |
154 Heap::public_set_code_stubs(NumberDictionary::cast(new_object)); | 154 HEAP->public_set_code_stubs(NumberDictionary::cast(new_object)); |
155 } | 155 } |
156 } | 156 } |
157 | 157 |
158 return code; | 158 return code; |
159 } | 159 } |
160 | 160 |
161 | 161 |
162 const char* CodeStub::MajorName(CodeStub::Major major_key, | 162 const char* CodeStub::MajorName(CodeStub::Major major_key, |
163 bool allow_unknown_keys) { | 163 bool allow_unknown_keys) { |
164 switch (major_key) { | 164 switch (major_key) { |
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195 break; | 195 break; |
196 default: | 196 default: |
197 UNREACHABLE(); | 197 UNREACHABLE(); |
198 } | 198 } |
199 } | 199 } |
200 | 200 |
201 | 201 |
202 const char* InstanceofStub::GetName() { | 202 const char* InstanceofStub::GetName() { |
203 if (name_ != NULL) return name_; | 203 if (name_ != NULL) return name_; |
204 const int kMaxNameLength = 100; | 204 const int kMaxNameLength = 100; |
205 name_ = Bootstrapper::AllocateAutoDeletedArray(kMaxNameLength); | 205 name_ = Isolate::Current()->bootstrapper()->AllocateAutoDeletedArray( |
| 206 kMaxNameLength); |
206 if (name_ == NULL) return "OOM"; | 207 if (name_ == NULL) return "OOM"; |
207 | 208 |
208 const char* args = ""; | 209 const char* args = ""; |
209 if (HasArgsInRegisters()) { | 210 if (HasArgsInRegisters()) { |
210 args = "_REGS"; | 211 args = "_REGS"; |
211 } | 212 } |
212 | 213 |
213 const char* inline_check = ""; | 214 const char* inline_check = ""; |
214 if (HasCallSiteInlineCheck()) { | 215 if (HasCallSiteInlineCheck()) { |
215 inline_check = "_INLINE"; | 216 inline_check = "_INLINE"; |
216 } | 217 } |
217 | 218 |
218 const char* return_true_false_object = ""; | 219 const char* return_true_false_object = ""; |
219 if (ReturnTrueFalseObject()) { | 220 if (ReturnTrueFalseObject()) { |
220 return_true_false_object = "_TRUEFALSE"; | 221 return_true_false_object = "_TRUEFALSE"; |
221 } | 222 } |
222 | 223 |
223 OS::SNPrintF(Vector<char>(name_, kMaxNameLength), | 224 OS::SNPrintF(Vector<char>(name_, kMaxNameLength), |
224 "InstanceofStub%s%s%s", | 225 "InstanceofStub%s%s%s", |
225 args, | 226 args, |
226 inline_check, | 227 inline_check, |
227 return_true_false_object); | 228 return_true_false_object); |
228 return name_; | 229 return name_; |
229 } | 230 } |
230 | 231 |
231 | 232 |
232 } } // namespace v8::internal | 233 } } // namespace v8::internal |
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