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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_STUB_CODE_H_ | 5 #ifndef VM_STUB_CODE_H_ |
6 #define VM_STUB_CODE_H_ | 6 #define VM_STUB_CODE_H_ |
7 | 7 |
8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
9 #include "vm/assembler.h" | 9 #include "vm/assembler.h" |
10 | 10 |
11 namespace dart { | 11 namespace dart { |
12 | 12 |
13 // Forward declarations. | 13 // Forward declarations. |
14 class Code; | 14 class Code; |
15 class Isolate; | 15 class Isolate; |
16 class ObjectPointerVisitor; | 16 class ObjectPointerVisitor; |
17 class RawCode; | 17 class RawCode; |
18 | 18 |
19 | 19 |
20 // List of stubs created in the VM isolate, these stubs are shared by different | 20 // List of stubs created in the VM isolate, these stubs are shared by different |
21 // isolates running in this dart process. | 21 // isolates running in this dart process. |
22 #define VM_STUB_CODE_LIST(V) \ | 22 #define VM_STUB_CODE_LIST(V) \ |
23 V(PrintStopMessage) \ | 23 V(PrintStopMessage) \ |
24 V(CallToRuntime) \ | |
25 V(LazyCompile) \ | |
26 V(CallBootstrapCFunction) \ | |
27 V(CallNativeCFunction) \ | |
28 V(CallStaticFunction) \ | |
29 V(FixCallersTarget) \ | |
30 V(FixAllocationStubTarget) \ | |
31 V(FixAllocateArrayStubTarget) \ | |
32 V(Deoptimize) \ | |
33 V(DeoptimizeLazy) \ | |
34 V(ICCallBreakpoint) \ | |
35 V(ClosureCallBreakpoint) \ | |
36 V(RuntimeCallBreakpoint) \ | |
37 V(DebugStepCheck) \ | |
38 V(GetStackPointer) \ | 24 V(GetStackPointer) \ |
39 V(JumpToExceptionHandler) \ | 25 V(JumpToExceptionHandler) \ |
40 V(UnoptimizedIdenticalWithNumberCheck) \ | |
41 V(OptimizedIdenticalWithNumberCheck) \ | |
42 | 26 |
43 // Is it permitted for the stubs above to refer to Object::null(), which is | 27 // Is it permitted for the stubs above to refer to Object::null(), which is |
44 // allocated in the VM isolate and shared across all isolates. | 28 // allocated in the VM isolate and shared across all isolates. |
45 // However, in cases where a simple GC-safe placeholder is needed on the stack, | 29 // However, in cases where a simple GC-safe placeholder is needed on the stack, |
46 // using Smi 0 instead of Object::null() is slightly more efficient, since a Smi | 30 // using Smi 0 instead of Object::null() is slightly more efficient, since a Smi |
47 // does not require relocation. | 31 // does not require relocation. |
48 | 32 |
49 // List of stubs created per isolate, these stubs could potentially contain | 33 // List of stubs created per isolate, these stubs could potentially contain |
50 // embedded objects and hence cannot be shared across isolates. | 34 // embedded objects and hence cannot be shared across isolates. |
51 #define STUB_CODE_LIST(V) \ | 35 // The initial stubs are needed for loading bootstrapping scripts and have to |
| 36 // be generated before Object::Init is called. |
| 37 #define BOOTSTRAP_STUB_CODE_LIST(V) \ |
| 38 V(CallToRuntime) \ |
| 39 V(LazyCompile) \ |
| 40 |
| 41 #define REST_STUB_CODE_LIST(V) \ |
| 42 V(CallBootstrapCFunction) \ |
| 43 V(CallNativeCFunction) \ |
| 44 V(FixCallersTarget) \ |
| 45 V(CallStaticFunction) \ |
| 46 V(FixAllocationStubTarget) \ |
| 47 V(FixAllocateArrayStubTarget) \ |
52 V(CallClosureNoSuchMethod) \ | 48 V(CallClosureNoSuchMethod) \ |
53 V(AllocateContext) \ | 49 V(AllocateContext) \ |
54 V(UpdateStoreBuffer) \ | 50 V(UpdateStoreBuffer) \ |
55 V(OneArgCheckInlineCache) \ | 51 V(OneArgCheckInlineCache) \ |
56 V(TwoArgsCheckInlineCache) \ | 52 V(TwoArgsCheckInlineCache) \ |
57 V(ThreeArgsCheckInlineCache) \ | 53 V(ThreeArgsCheckInlineCache) \ |
58 V(SmiAddInlineCache) \ | 54 V(SmiAddInlineCache) \ |
59 V(SmiSubInlineCache) \ | 55 V(SmiSubInlineCache) \ |
60 V(SmiEqualInlineCache) \ | 56 V(SmiEqualInlineCache) \ |
61 V(OneArgOptimizedCheckInlineCache) \ | 57 V(OneArgOptimizedCheckInlineCache) \ |
62 V(TwoArgsOptimizedCheckInlineCache) \ | 58 V(TwoArgsOptimizedCheckInlineCache) \ |
63 V(ThreeArgsOptimizedCheckInlineCache) \ | 59 V(ThreeArgsOptimizedCheckInlineCache) \ |
64 V(ZeroArgsUnoptimizedStaticCall) \ | 60 V(ZeroArgsUnoptimizedStaticCall) \ |
65 V(OneArgUnoptimizedStaticCall) \ | 61 V(OneArgUnoptimizedStaticCall) \ |
66 V(TwoArgsUnoptimizedStaticCall) \ | 62 V(TwoArgsUnoptimizedStaticCall) \ |
67 V(OptimizeFunction) \ | 63 V(OptimizeFunction) \ |
68 V(InvokeDartCode) \ | 64 V(InvokeDartCode) \ |
69 V(Subtype1TestCache) \ | 65 V(Subtype1TestCache) \ |
70 V(Subtype2TestCache) \ | 66 V(Subtype2TestCache) \ |
71 V(Subtype3TestCache) \ | 67 V(Subtype3TestCache) \ |
| 68 V(Deoptimize) \ |
| 69 V(DeoptimizeLazy) \ |
| 70 V(ICCallBreakpoint) \ |
| 71 V(ClosureCallBreakpoint) \ |
| 72 V(RuntimeCallBreakpoint) \ |
| 73 V(UnoptimizedIdenticalWithNumberCheck) \ |
| 74 V(OptimizedIdenticalWithNumberCheck) \ |
| 75 V(DebugStepCheck) \ |
| 76 |
| 77 #define STUB_CODE_LIST(V) \ |
| 78 BOOTSTRAP_STUB_CODE_LIST(V) \ |
| 79 REST_STUB_CODE_LIST(V) |
72 | 80 |
73 // class StubEntry is used to describe stub methods generated in dart to | 81 // class StubEntry is used to describe stub methods generated in dart to |
74 // abstract out common code executed from generated dart code. | 82 // abstract out common code executed from generated dart code. |
75 class StubEntry { | 83 class StubEntry { |
76 public: | 84 public: |
77 explicit StubEntry(const Code& code); | 85 explicit StubEntry(const Code& code); |
78 ~StubEntry() {} | 86 ~StubEntry() {} |
79 | 87 |
80 const ExternalLabel& label() const { return label_; } | 88 const ExternalLabel& label() const { return label_; } |
81 uword EntryPoint() const { return entry_point_; } | 89 uword EntryPoint() const { return entry_point_; } |
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99 class StubCode { | 107 class StubCode { |
100 public: | 108 public: |
101 explicit StubCode(Isolate* isolate) | 109 explicit StubCode(Isolate* isolate) |
102 : | 110 : |
103 #define STUB_CODE_INITIALIZER(name) \ | 111 #define STUB_CODE_INITIALIZER(name) \ |
104 name##_entry_(NULL), | 112 name##_entry_(NULL), |
105 STUB_CODE_LIST(STUB_CODE_INITIALIZER) | 113 STUB_CODE_LIST(STUB_CODE_INITIALIZER) |
106 isolate_(isolate) {} | 114 isolate_(isolate) {} |
107 ~StubCode(); | 115 ~StubCode(); |
108 | 116 |
109 void GenerateFor(Isolate* isolate); | |
110 | 117 |
111 // Generate all stubs which are shared across all isolates, this is done | 118 // Generate all stubs which are shared across all isolates, this is done |
112 // only once and the stub code resides in the vm_isolate heap. | 119 // only once and the stub code resides in the vm_isolate heap. |
113 static void InitOnce(); | 120 static void InitOnce(); |
114 | 121 |
115 // Generate all stubs which are generated on a per isolate basis as they | 122 // Generate all stubs which are generated on a per isolate basis as they |
116 // have embedded objects which are isolate specific. | 123 // have embedded objects which are isolate specific. |
| 124 // Bootstrap stubs are needed before Object::Init to compile the bootstrap |
| 125 // scripts. |
| 126 static void InitBootstrapStubs(Isolate* isolate); |
117 static void Init(Isolate* isolate); | 127 static void Init(Isolate* isolate); |
118 | 128 |
119 static void VisitObjectPointers(ObjectPointerVisitor* visitor); | 129 static void VisitObjectPointers(ObjectPointerVisitor* visitor); |
120 | 130 |
121 // Check if specified pc is in the dart invocation stub used for | 131 // Check if specified pc is in the dart invocation stub used for |
122 // transitioning into dart code. | 132 // transitioning into dart code. |
123 static bool InInvocationStub(uword pc); | 133 static bool InInvocationStub(uword pc); |
124 | 134 |
125 static bool InInvocationStubForIsolate(Isolate* isolate, uword pc); | 135 static bool InInvocationStubForIsolate(Isolate* isolate, uword pc); |
126 | 136 |
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165 #undef STUB_CODE_ACCESSOR | 175 #undef STUB_CODE_ACCESSOR |
166 | 176 |
167 static RawCode* GetAllocationStubForClass(const Class& cls); | 177 static RawCode* GetAllocationStubForClass(const Class& cls); |
168 RawCode* GetAllocateArrayStub(); | 178 RawCode* GetAllocateArrayStub(); |
169 | 179 |
170 uword UnoptimizedStaticCallEntryPoint(intptr_t num_args_tested); | 180 uword UnoptimizedStaticCallEntryPoint(intptr_t num_args_tested); |
171 | 181 |
172 static const intptr_t kNoInstantiator = 0; | 182 static const intptr_t kNoInstantiator = 0; |
173 | 183 |
174 private: | 184 private: |
| 185 void GenerateBootstrapStubsFor(Isolate* isolate); |
| 186 void GenerateStubsFor(Isolate* isolate); |
| 187 |
175 friend class MegamorphicCacheTable; | 188 friend class MegamorphicCacheTable; |
176 | 189 |
177 static const intptr_t kStubCodeSize = 4 * KB; | 190 static const intptr_t kStubCodeSize = 4 * KB; |
178 | 191 |
179 #define STUB_CODE_GENERATE(name) \ | 192 #define STUB_CODE_GENERATE(name) \ |
180 static void Generate##name##Stub(Assembler* assembler); | 193 static void Generate##name##Stub(Assembler* assembler); |
181 VM_STUB_CODE_LIST(STUB_CODE_GENERATE); | 194 VM_STUB_CODE_LIST(STUB_CODE_GENERATE); |
182 STUB_CODE_LIST(STUB_CODE_GENERATE); | 195 STUB_CODE_LIST(STUB_CODE_GENERATE); |
183 #undef STUB_CODE_GENERATE | 196 #undef STUB_CODE_GENERATE |
184 | 197 |
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217 Assembler* assembler, | 230 Assembler* assembler, |
218 const Register left, | 231 const Register left, |
219 const Register right, | 232 const Register right, |
220 const Register temp1 = kNoRegister, | 233 const Register temp1 = kNoRegister, |
221 const Register temp2 = kNoRegister); | 234 const Register temp2 = kNoRegister); |
222 }; | 235 }; |
223 | 236 |
224 } // namespace dart | 237 } // namespace dart |
225 | 238 |
226 #endif // VM_STUB_CODE_H_ | 239 #endif // VM_STUB_CODE_H_ |
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