src/builtins.h

   1 // Copyright 2011 the V8 project authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef V8_BUILTINS_H_
   6 #define V8_BUILTINS_H_
   7
   8 namespace v8 {
   9 namespace internal {
  10
  11 // Specifies extra arguments required by a C++ builtin.
  12 enum BuiltinExtraArguments {
  13   NO_EXTRA_ARGUMENTS = 0,
  14   NEEDS_CALLED_FUNCTION = 1
  15 };
  16
  17
  18 #define CODE_AGE_LIST_WITH_ARG(V, A)     \
  19   V(Quadragenarian, A)                   \
  20   V(Quinquagenarian, A)                  \
  21   V(Sexagenarian, A)                     \
  22   V(Septuagenarian, A)                   \
  23   V(Octogenarian, A)
  24
  25 #define CODE_AGE_LIST_IGNORE_ARG(X, V) V(X)
  26
  27 #define CODE_AGE_LIST(V) \
  28   CODE_AGE_LIST_WITH_ARG(CODE_AGE_LIST_IGNORE_ARG, V)
  29
  30 #define CODE_AGE_LIST_COMPLETE(V)                  \
  31   V(ToBeExecutedOnce)                              \
  32   V(NotExecuted)                                   \
  33   V(ExecutedOnce)                                  \
  34   V(NoAge)                                         \
  35   CODE_AGE_LIST_WITH_ARG(CODE_AGE_LIST_IGNORE_ARG, V)
  36
  37 #define DECLARE_CODE_AGE_BUILTIN(C, V)             \
  38   V(Make##C##CodeYoungAgainOddMarking, BUILTIN,    \
  39     UNINITIALIZED, kNoExtraICState)                \
  40   V(Make##C##CodeYoungAgainEvenMarking, BUILTIN,   \
  41     UNINITIALIZED, kNoExtraICState)
  42
  43
  44 // Define list of builtins implemented in C++.
  45 #define BUILTIN_LIST_C(V)                                    \
  46   V(Illegal, NO_EXTRA_ARGUMENTS)                             \
  47                                                              \
  48   V(EmptyFunction, NO_EXTRA_ARGUMENTS)                       \
  49                                                              \
  50   V(ArrayPush, NO_EXTRA_ARGUMENTS)                           \
  51   V(ArrayPop, NO_EXTRA_ARGUMENTS)                            \
  52   V(ArrayShift, NO_EXTRA_ARGUMENTS)                          \
  53   V(ArrayUnshift, NO_EXTRA_ARGUMENTS)                        \
  54   V(ArraySlice, NO_EXTRA_ARGUMENTS)                          \
  55   V(ArraySplice, NO_EXTRA_ARGUMENTS)                         \
  56   V(ArrayConcat, NO_EXTRA_ARGUMENTS)                         \
  57                                                              \
  58   V(HandleApiCall, NEEDS_CALLED_FUNCTION)                    \
  59   V(HandleApiCallConstruct, NEEDS_CALLED_FUNCTION)           \
  60   V(HandleApiCallAsFunction, NO_EXTRA_ARGUMENTS)             \
  61   V(HandleApiCallAsConstructor, NO_EXTRA_ARGUMENTS)          \
  62                                                              \
  63   V(RestrictedFunctionPropertiesThrower, NO_EXTRA_ARGUMENTS) \
  64   V(RestrictedStrictArgumentsPropertiesThrower, NO_EXTRA_ARGUMENTS)
  65
  66 // Define list of builtins implemented in assembly.
  67 #define BUILTIN_LIST_A(V)                                                    \
  68   V(ArgumentsAdaptorTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState)     \
  69   V(InOptimizationQueue, BUILTIN, UNINITIALIZED, kNoExtraICState)            \
  70   V(JSConstructStubGeneric, BUILTIN, UNINITIALIZED, kNoExtraICState)         \
  71   V(JSConstructStubForDerived, BUILTIN, UNINITIALIZED, kNoExtraICState)      \
  72   V(JSConstructStubApi, BUILTIN, UNINITIALIZED, kNoExtraICState)             \
  73   V(JSEntryTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState)              \
  74   V(JSConstructEntryTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState)     \
  75   V(InterpreterEntryTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState)     \
  76   V(InterpreterExitTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState)      \
  77   V(CompileLazy, BUILTIN, UNINITIALIZED, kNoExtraICState)                    \
  78   V(CompileOptimized, BUILTIN, UNINITIALIZED, kNoExtraICState)               \
  79   V(CompileOptimizedConcurrent, BUILTIN, UNINITIALIZED, kNoExtraICState)     \
  80   V(NotifyDeoptimized, BUILTIN, UNINITIALIZED, kNoExtraICState)              \
  81   V(NotifySoftDeoptimized, BUILTIN, UNINITIALIZED, kNoExtraICState)          \
  82   V(NotifyLazyDeoptimized, BUILTIN, UNINITIALIZED, kNoExtraICState)          \
  83   V(NotifyStubFailure, BUILTIN, UNINITIALIZED, kNoExtraICState)              \
  84   V(NotifyStubFailureSaveDoubles, BUILTIN, UNINITIALIZED, kNoExtraICState)   \
  85                                                                              \
  86   V(LoadIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState)                    \
  87   V(KeyedLoadIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState)               \
  88   V(StoreIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState)                   \
  89   V(KeyedStoreIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState)              \
  90   V(LoadIC_Getter_ForDeopt, LOAD_IC, MONOMORPHIC, kNoExtraICState)           \
  91   V(KeyedLoadIC_Megamorphic, KEYED_LOAD_IC, MEGAMORPHIC, kNoExtraICState)    \
  92                                                                              \
  93   V(KeyedLoadIC_Megamorphic_Strong, KEYED_LOAD_IC, MEGAMORPHIC,              \
  94     LoadICState::kStrongModeState)                                           \
  95                                                                              \
  96   V(StoreIC_Setter_ForDeopt, STORE_IC, MONOMORPHIC,                          \
  97     StoreICState::kStrictModeState)                                          \
  98                                                                              \
  99   V(KeyedStoreIC_Initialize, KEYED_STORE_IC, UNINITIALIZED, kNoExtraICState) \
 100   V(KeyedStoreIC_PreMonomorphic, KEYED_STORE_IC, PREMONOMORPHIC,             \
 101     kNoExtraICState)                                                         \
 102   V(KeyedStoreIC_Megamorphic, KEYED_STORE_IC, MEGAMORPHIC, kNoExtraICState)  \
 103                                                                              \
 104   V(KeyedStoreIC_Initialize_Strict, KEYED_STORE_IC, UNINITIALIZED,           \
 105     StoreICState::kStrictModeState)                                          \
 106   V(KeyedStoreIC_PreMonomorphic_Strict, KEYED_STORE_IC, PREMONOMORPHIC,      \
 107     StoreICState::kStrictModeState)                                          \
 108   V(KeyedStoreIC_Megamorphic_Strict, KEYED_STORE_IC, MEGAMORPHIC,            \
 109     StoreICState::kStrictModeState)                                          \
 110                                                                              \
 111   V(FunctionCall, BUILTIN, UNINITIALIZED, kNoExtraICState)                   \
 112   V(FunctionApply, BUILTIN, UNINITIALIZED, kNoExtraICState)                  \
 113   V(ReflectApply, BUILTIN, UNINITIALIZED, kNoExtraICState)                   \
 114   V(ReflectConstruct, BUILTIN, UNINITIALIZED, kNoExtraICState)               \
 115                                                                              \
 116   V(InternalArrayCode, BUILTIN, UNINITIALIZED, kNoExtraICState)              \
 117   V(ArrayCode, BUILTIN, UNINITIALIZED, kNoExtraICState)                      \
 118                                                                              \
 119   V(StringConstructCode, BUILTIN, UNINITIALIZED, kNoExtraICState)            \
 120                                                                              \
 121   V(OnStackReplacement, BUILTIN, UNINITIALIZED, kNoExtraICState)             \
 122   V(InterruptCheck, BUILTIN, UNINITIALIZED, kNoExtraICState)                 \
 123   V(OsrAfterStackCheck, BUILTIN, UNINITIALIZED, kNoExtraICState)             \
 124   V(StackCheck, BUILTIN, UNINITIALIZED, kNoExtraICState)                     \
 125                                                                              \
 126   V(MarkCodeAsToBeExecutedOnce, BUILTIN, UNINITIALIZED, kNoExtraICState)     \
 127   V(MarkCodeAsExecutedOnce, BUILTIN, UNINITIALIZED, kNoExtraICState)         \
 128   V(MarkCodeAsExecutedTwice, BUILTIN, UNINITIALIZED, kNoExtraICState)        \
 129   CODE_AGE_LIST_WITH_ARG(DECLARE_CODE_AGE_BUILTIN, V)
 130
 131 // Define list of builtin handlers implemented in assembly.
 132 #define BUILTIN_LIST_H(V)                    \
 133   V(LoadIC_Slow,             LOAD_IC)        \
 134   V(LoadIC_Slow_Strong,      LOAD_IC)        \
 135   V(KeyedLoadIC_Slow,        KEYED_LOAD_IC)  \
 136   V(KeyedLoadIC_Slow_Strong, KEYED_LOAD_IC)  \
 137   V(StoreIC_Slow,            STORE_IC)       \
 138   V(KeyedStoreIC_Slow,       KEYED_STORE_IC) \
 139   V(LoadIC_Normal,           LOAD_IC)        \
 140   V(LoadIC_Normal_Strong,    LOAD_IC)        \
 141   V(StoreIC_Normal,          STORE_IC)
 142
 143 // Define list of builtins used by the debugger implemented in assembly.
 144 #define BUILTIN_LIST_DEBUG_A(V)                                 \
 145   V(Return_DebugBreak, BUILTIN, DEBUG_STUB, kNoExtraICState)    \
 146   V(Slot_DebugBreak, BUILTIN, DEBUG_STUB, kNoExtraICState)      \
 147   V(PlainReturn_LiveEdit, BUILTIN, DEBUG_STUB, kNoExtraICState) \
 148   V(FrameDropper_LiveEdit, BUILTIN, DEBUG_STUB, kNoExtraICState)
 149
 150 // Define list of builtins implemented in JavaScript.
 151 #define BUILTINS_LIST_JS(V)                \
 152   V(EQUALS, 1)                             \
 153   V(STRICT_EQUALS, 1)                      \
 154   V(COMPARE, 2)                            \
 155   V(COMPARE_STRONG, 2)                     \
 156   V(ADD, 1)                                \
 157   V(ADD_STRONG, 1)                         \
 158   V(SUB, 1)                                \
 159   V(SUB_STRONG, 1)                         \
 160   V(MUL, 1)                                \
 161   V(MUL_STRONG, 1)                         \
 162   V(DIV, 1)                                \
 163   V(DIV_STRONG, 1)                         \
 164   V(MOD, 1)                                \
 165   V(MOD_STRONG, 1)                         \
 166   V(BIT_OR, 1)                             \
 167   V(BIT_OR_STRONG, 1)                      \
 168   V(BIT_AND, 1)                            \
 169   V(BIT_AND_STRONG, 1)                     \
 170   V(BIT_XOR, 1)                            \
 171   V(BIT_XOR_STRONG, 1)                     \
 172   V(SHL, 1)                                \
 173   V(SHL_STRONG, 1)                         \
 174   V(SAR, 1)                                \
 175   V(SAR_STRONG, 1)                         \
 176   V(SHR, 1)                                \
 177   V(SHR_STRONG, 1)                         \
 178   V(INSTANCE_OF, 1)                        \
 179   V(CALL_NON_FUNCTION, 0)                  \
 180   V(CALL_NON_FUNCTION_AS_CONSTRUCTOR, 0)   \
 181   V(CALL_FUNCTION_PROXY, 1)                \
 182   V(CALL_FUNCTION_PROXY_AS_CONSTRUCTOR, 1) \
 183   V(TO_NUMBER, 0)                          \
 184   V(TO_STRING, 0)                          \
 185   V(TO_NAME, 0)                            \
 186   V(STRING_ADD_LEFT, 1)                    \
 187   V(STRING_ADD_RIGHT, 1)                   \
 188   V(APPLY_PREPARE, 1)                      \
 189   V(REFLECT_APPLY_PREPARE, 1)              \
 190   V(REFLECT_CONSTRUCT_PREPARE, 2)          \
 191   V(CONCAT_ITERABLE_TO_ARRAY, 1)           \
 192   V(STACK_OVERFLOW, 1)
 193
 194 class BuiltinFunctionTable;
 195 class ObjectVisitor;
 196
 197
 198 class Builtins {
 199  public:
 200   ~Builtins();
 201
 202   // Generate all builtin code objects. Should be called once during
 203   // isolate initialization.
 204   void SetUp(Isolate* isolate, bool create_heap_objects);
 205   void TearDown();
 206
 207   // Garbage collection support.
 208   void IterateBuiltins(ObjectVisitor* v);
 209
 210   // Disassembler support.
 211   const char* Lookup(byte* pc);
 212
 213   enum Name {
 214 #define DEF_ENUM_C(name, ignore) k##name,
 215 #define DEF_ENUM_A(name, kind, state, extra) k##name,
 216 #define DEF_ENUM_H(name, kind) k##name,
 217     BUILTIN_LIST_C(DEF_ENUM_C)
 218     BUILTIN_LIST_A(DEF_ENUM_A)
 219     BUILTIN_LIST_H(DEF_ENUM_H)
 220     BUILTIN_LIST_DEBUG_A(DEF_ENUM_A)
 221 #undef DEF_ENUM_C
 222 #undef DEF_ENUM_A
 223     builtin_count
 224   };
 225
 226   enum CFunctionId {
 227 #define DEF_ENUM_C(name, ignore) c_##name,
 228     BUILTIN_LIST_C(DEF_ENUM_C)
 229 #undef DEF_ENUM_C
 230     cfunction_count
 231   };
 232
 233   enum JavaScript {
 234 #define DEF_ENUM(name, ignore) name,
 235     BUILTINS_LIST_JS(DEF_ENUM)
 236 #undef DEF_ENUM
 237     id_count
 238   };
 239
 240 #define DECLARE_BUILTIN_ACCESSOR_C(name, ignore) Handle<Code> name();
 241 #define DECLARE_BUILTIN_ACCESSOR_A(name, kind, state, extra) \
 242   Handle<Code> name();
 243 #define DECLARE_BUILTIN_ACCESSOR_H(name, kind) Handle<Code> name();
 244   BUILTIN_LIST_C(DECLARE_BUILTIN_ACCESSOR_C)
 245   BUILTIN_LIST_A(DECLARE_BUILTIN_ACCESSOR_A)
 246   BUILTIN_LIST_H(DECLARE_BUILTIN_ACCESSOR_H)
 247   BUILTIN_LIST_DEBUG_A(DECLARE_BUILTIN_ACCESSOR_A)
 248 #undef DECLARE_BUILTIN_ACCESSOR_C
 249 #undef DECLARE_BUILTIN_ACCESSOR_A
 250
 251   Code* builtin(Name name) {
 252     // Code::cast cannot be used here since we access builtins
 253     // during the marking phase of mark sweep. See IC::Clear.
 254     return reinterpret_cast<Code*>(builtins_[name]);
 255   }
 256
 257   Address builtin_address(Name name) {
 258     return reinterpret_cast<Address>(&builtins_[name]);
 259   }
 260
 261   static Address c_function_address(CFunctionId id) {
 262     return c_functions_[id];
 263   }
 264
 265   static const char* GetName(JavaScript id) { return javascript_names_[id]; }
 266   const char* name(int index) {
 267     DCHECK(index >= 0);
 268     DCHECK(index < builtin_count);
 269     return names_[index];
 270   }
 271   static int GetArgumentsCount(JavaScript id) { return javascript_argc_[id]; }
 272   static int NumberOfJavaScriptBuiltins() { return id_count; }
 273
 274   bool is_initialized() const { return initialized_; }
 275
 276   MUST_USE_RESULT static MaybeHandle<Object> InvokeApiFunction(
 277       Handle<JSFunction> function, Handle<Object> receiver, int argc,
 278       Handle<Object> args[]);
 279
 280  private:
 281   Builtins();
 282
 283   // The external C++ functions called from the code.
 284   static Address const c_functions_[cfunction_count];
 285
 286   // Note: These are always Code objects, but to conform with
 287   // IterateBuiltins() above which assumes Object**'s for the callback
 288   // function f, we use an Object* array here.
 289   Object* builtins_[builtin_count];
 290   const char* names_[builtin_count];
 291   static const char* const javascript_names_[id_count];
 292   static int const javascript_argc_[id_count];
 293
 294   static void Generate_Adaptor(MacroAssembler* masm,
 295                                CFunctionId id,
 296                                BuiltinExtraArguments extra_args);
 297   static void Generate_CompileLazy(MacroAssembler* masm);
 298   static void Generate_InOptimizationQueue(MacroAssembler* masm);
 299   static void Generate_CompileOptimized(MacroAssembler* masm);
 300   static void Generate_CompileOptimizedConcurrent(MacroAssembler* masm);
 301   static void Generate_JSConstructStubGeneric(MacroAssembler* masm);
 302   static void Generate_JSConstructStubForDerived(MacroAssembler* masm);
 303   static void Generate_JSConstructStubApi(MacroAssembler* masm);
 304   static void Generate_JSEntryTrampoline(MacroAssembler* masm);
 305   static void Generate_JSConstructEntryTrampoline(MacroAssembler* masm);
 306   static void Generate_InterpreterEntryTrampoline(MacroAssembler* masm);
 307   static void Generate_InterpreterExitTrampoline(MacroAssembler* masm);
 308   static void Generate_NotifyDeoptimized(MacroAssembler* masm);
 309   static void Generate_NotifySoftDeoptimized(MacroAssembler* masm);
 310   static void Generate_NotifyLazyDeoptimized(MacroAssembler* masm);
 311   static void Generate_NotifyStubFailure(MacroAssembler* masm);
 312   static void Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm);
 313   static void Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm);
 314
 315   static void Generate_FunctionCall(MacroAssembler* masm);
 316   static void Generate_FunctionApply(MacroAssembler* masm);
 317   static void Generate_ReflectApply(MacroAssembler* masm);
 318   static void Generate_ReflectConstruct(MacroAssembler* masm);
 319
 320   static void Generate_InternalArrayCode(MacroAssembler* masm);
 321   static void Generate_ArrayCode(MacroAssembler* masm);
 322
 323   static void Generate_StringConstructCode(MacroAssembler* masm);
 324   static void Generate_OnStackReplacement(MacroAssembler* masm);
 325   static void Generate_OsrAfterStackCheck(MacroAssembler* masm);
 326   static void Generate_InterruptCheck(MacroAssembler* masm);
 327   static void Generate_StackCheck(MacroAssembler* masm);
 328
 329 #define DECLARE_CODE_AGE_BUILTIN_GENERATOR(C)                \
 330   static void Generate_Make##C##CodeYoungAgainEvenMarking(   \
 331       MacroAssembler* masm);                                 \
 332   static void Generate_Make##C##CodeYoungAgainOddMarking(    \
 333       MacroAssembler* masm);
 334   CODE_AGE_LIST(DECLARE_CODE_AGE_BUILTIN_GENERATOR)
 335 #undef DECLARE_CODE_AGE_BUILTIN_GENERATOR
 336
 337   static void Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm);
 338   static void Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm);
 339   static void Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm);
 340
 341   static void InitBuiltinFunctionTable();
 342
 343   bool initialized_;
 344
 345   friend class BuiltinFunctionTable;
 346   friend class Isolate;
 347
 348   DISALLOW_COPY_AND_ASSIGN(Builtins);
 349 };
 350
 351 } }  // namespace v8::internal
 352
 353 #endif  // V8_BUILTINS_H_