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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(DartCallToRuntime) \ | 23 V(DartCallToRuntime) \ |
| 24 V(StubCallToRuntime) \ | 24 V(StubCallToRuntime) \ |
| 25 V(CallNativeCFunction) \ | 25 V(CallNativeCFunction) \ |
| 26 V(AllocateArray) \ | 26 V(AllocateArray) \ |
| 27 V(CallNoSuchMethodFunction) \ | 27 V(CallNoSuchMethodFunction) \ |
| 28 V(MegamorphicLookup) \ | 28 V(MegamorphicLookup) \ |
| 29 V(CallInstanceFunction) \ | |
| 30 V(CallStaticFunction) \ | 29 V(CallStaticFunction) \ |
| 31 V(CallClosureFunction) \ | 30 V(CallClosureFunction) \ |
| 32 V(StackOverflow) \ | 31 V(StackOverflow) \ |
| 33 V(OptimizeInvokedFunction) \ | 32 V(OptimizeInvokedFunction) \ |
| 34 V(FixCallersTarget) \ | 33 V(FixCallersTarget) \ |
| 35 V(Deoptimize) \ | 34 V(Deoptimize) \ |
| 36 | 35 |
| 37 // TODO(regis): Is it OK for the stubs above to refer to Object::null()? | 36 // TODO(regis): Is it OK for the stubs above to refer to Object::null()? |
| 38 | 37 |
| 39 // List of stubs created per isolate, these stubs could potentially contain | 38 // List of stubs created per isolate, these stubs could potentially contain |
| 40 // embedded objects and hence cannot be shared across isolates. | 39 // embedded objects and hence cannot be shared across isolates. |
| 41 #define STUB_CODE_LIST(V) \ | 40 #define STUB_CODE_LIST(V) \ |
| 42 V(InvokeDartCode) \ | 41 V(InvokeDartCode) \ |
| 43 V(AllocateContext) \ | 42 V(AllocateContext) \ |
| 43 V(InlineCache) \ |
| 44 | 44 |
| 45 | 45 |
| 46 // class StubEntry is used to describe stub methods generated in dart to | 46 // class StubEntry is used to describe stub methods generated in dart to |
| 47 // abstract out common code executed from generated dart code. | 47 // abstract out common code executed from generated dart code. |
| 48 class StubEntry { | 48 class StubEntry { |
| 49 public: | 49 public: |
| 50 StubEntry(const char* name, const Code& code); | 50 StubEntry(const char* name, const Code& code); |
| 51 ~StubEntry() {} | 51 ~StubEntry() {} |
| 52 | 52 |
| 53 const ExternalLabel& label() const { return label_; } | 53 const ExternalLabel& label() const { return label_; } |
| (...skipping 11 matching lines...) Expand all Loading... |
| 65 | 65 |
| 66 DISALLOW_COPY_AND_ASSIGN(StubEntry); | 66 DISALLOW_COPY_AND_ASSIGN(StubEntry); |
| 67 }; | 67 }; |
| 68 | 68 |
| 69 | 69 |
| 70 // class StubCode is used to maintain the lifecycle of stubs. | 70 // class StubCode is used to maintain the lifecycle of stubs. |
| 71 class StubCode { | 71 class StubCode { |
| 72 public: | 72 public: |
| 73 StubCode() | 73 StubCode() |
| 74 : | 74 : |
| 75 #define STUB_CODE_INITIALIZER(name) \ | 75 #define STUB_CODE_INITIALIZER(name) \ |
| 76 name##_entry_(NULL), | 76 name##_entry_(NULL), \ |
| 77 STUB_CODE_LIST(STUB_CODE_INITIALIZER) | 77 STUB_CODE_LIST(STUB_CODE_INITIALIZER) |
| 78 dummy_(NULL) {} | 78 dummy_(NULL) {} |
| 79 ~StubCode(); | 79 ~StubCode(); |
| 80 | 80 |
| 81 void GenerateFor(Isolate* isolate); | 81 void GenerateFor(Isolate* isolate); |
| 82 | 82 |
| 83 // Generate all stubs which are shared across all isolates, this is done | 83 // Generate all stubs which are shared across all isolates, this is done |
| 84 // only once and the stub code resides in the vm_isolate heap. | 84 // only once and the stub code resides in the vm_isolate heap. |
| 85 static void InitOnce(); | 85 static void InitOnce(); |
| 86 | 86 |
| 87 // Generate all stubs which are generated on a per isolate basis as they | 87 // Generate all stubs which are generated on a per isolate basis as they |
| 88 // have embedded objects which are isolate specific. | 88 // have embedded objects which are isolate specific. |
| 89 static void Init(Isolate* isolate); | 89 static void Init(Isolate* isolate); |
| 90 | 90 |
| 91 static void VisitObjectPointers(ObjectPointerVisitor* visitor); | 91 static void VisitObjectPointers(ObjectPointerVisitor* visitor); |
| 92 | 92 |
| 93 // Check if specified pc is in the dart invocation stub used for | 93 // Check if specified pc is in the dart invocation stub used for |
| 94 // transitioning into dart code. | 94 // transitioning into dart code. |
| 95 static bool InInvocationStub(uword pc); | 95 static bool InInvocationStub(uword pc); |
| 96 // Check if specified pc is in CallInstanceFunction stub. | |
| 97 static bool InCallInstanceFunctionStubCode(uword pc); | |
| 98 // Check if specified pc is in StubCallToRuntime stub. | 96 // Check if specified pc is in StubCallToRuntime stub. |
| 99 static bool InStubCallToRuntimeStubCode(uword pc); | 97 static bool InStubCallToRuntimeStubCode(uword pc); |
| 100 | 98 |
| 101 // Returns NULL if no stub found. | 99 // Returns NULL if no stub found. |
| 102 static const char* NameOfStub(uword entry_point); | 100 static const char* NameOfStub(uword entry_point); |
| 103 | 101 |
| 104 // Define the shared stub code accessors. | 102 // Define the shared stub code accessors. |
| 105 #define STUB_CODE_ACCESSOR(name) \ | 103 #define STUB_CODE_ACCESSOR(name) \ |
| 106 static StubEntry* name##_entry() { \ | 104 static StubEntry* name##_entry() { \ |
| 107 return name##_entry_; \ | 105 return name##_entry_; \ |
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| 163 | 161 |
| 164 static void GenerateAllocationStubForClass(Assembler* assembler, | 162 static void GenerateAllocationStubForClass(Assembler* assembler, |
| 165 const Class& cls); | 163 const Class& cls); |
| 166 static void GenerateAllocationStubForClosure(Assembler* assembler, | 164 static void GenerateAllocationStubForClosure(Assembler* assembler, |
| 167 const Function& func); | 165 const Function& func); |
| 168 }; | 166 }; |
| 169 | 167 |
| 170 } // namespace dart | 168 } // namespace dart |
| 171 | 169 |
| 172 #endif // VM_STUB_CODE_H_ | 170 #endif // VM_STUB_CODE_H_ |
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