Annotate V8 for MemorySanitizer.

src/builtins.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 18 matching lines @@
 
 #include "api.h"
 #include "arguments.h"
 #include "bootstrapper.h"
 #include "builtins.h"
 #include "cpu-profiler.h"
 #include "gdb-jit.h"
 #include "ic-inl.h"
 #include "heap-profiler.h"
 #include "mark-compact.h"
+#include "msan.h"
 #include "stub-cache.h"
 #include "vm-state-inl.h"
 
 namespace v8 {
 namespace internal {
 
 namespace {
 
 // Arguments object passed to C++ builtins.
 template <BuiltinExtraArguments extra_args>
@@ skipping 76 matching lines @@
 // through the BuiltinArguments object args.
 
 #ifdef DEBUG
 
 #define BUILTIN(name)                                            \
   MUST_USE_RESULT static MaybeObject* Builtin_Impl_##name(       \
       name##ArgumentsType args, Isolate* isolate);               \
   MUST_USE_RESULT static MaybeObject* Builtin_##name(            \
       int args_length, Object** args_object, Isolate* isolate) { \
     name##ArgumentsType args(args_length, args_object);          \
+    MSAN_RUNTIME_FUNCTION3(args_length, args_object, isolate);   \
     args.Verify();                                               \
     return Builtin_Impl_##name(args, isolate);                   \
   }                                                              \
   MUST_USE_RESULT static MaybeObject* Builtin_Impl_##name(       \
       name##ArgumentsType args, Isolate* isolate)
 
 #else  // For release mode.
 
 #define BUILTIN(name)                                            \
   static MaybeObject* Builtin_impl##name(                        \
       name##ArgumentsType args, Isolate* isolate);               \
   static MaybeObject* Builtin_##name(                            \
       int args_length, Object** args_object, Isolate* isolate) { \
     name##ArgumentsType args(args_length, args_object);          \
+    MSAN_RUNTIME_FUNCTION3(args_length, args_object, isolate);   \
     return Builtin_impl##name(args, isolate);                    \
   }                                                              \
   static MaybeObject* Builtin_impl##name(                        \
       name##ArgumentsType args, Isolate* isolate)
 #endif
 
 
 static inline bool CalledAsConstructor(Isolate* isolate) {
 #ifdef DEBUG
   // Calculate the result using a full stack frame iterator and check
@@ skipping 1641 matching lines @@
 }
 BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C)
 BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A)
 BUILTIN_LIST_H(DEFINE_BUILTIN_ACCESSOR_H)
 BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A)
 #undef DEFINE_BUILTIN_ACCESSOR_C
 #undef DEFINE_BUILTIN_ACCESSOR_A
 
 
 } }  // namespace v8::internal