Add runtime and native entry tags

runtime/vm/runtime_entry.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_RUNTIME_ENTRY_H_
 #define VM_RUNTIME_ENTRY_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/flags.h"
 #include "vm/native_arguments.h"
+#include "vm/tags.h"
 
 namespace dart {
 
 DECLARE_FLAG(bool, trace_runtime_calls);
 
 typedef void (*RuntimeFunction)(NativeArguments arguments);
 
 
 // Class RuntimeEntry is used to encapsulate runtime functions, it includes
 // the entry point for the runtime function and the number of arguments expected
 // by the function.
 class RuntimeEntry : public ValueObject {
  public:
   RuntimeEntry(const char* name, RuntimeFunction function,
                intptr_t argument_count, bool is_leaf, bool is_float)
       : name_(name),
         function_(function),
         argument_count_(argument_count),
         is_leaf_(is_leaf),
-        is_float_(is_float) { }
+        is_float_(is_float),
+        next_(NULL) {
+    // Strip off const for registration.
+    VMTag::RegisterRuntimeEntry(const_cast<RuntimeEntry*>(this));
+  }
   ~RuntimeEntry() {}
 
   const char* name() const { return name_; }
   RuntimeFunction function() const { return function_; }
   intptr_t argument_count() const { return argument_count_; }
   bool is_leaf() const { return is_leaf_; }
   bool is_float() const { return is_float_; }
   uword GetEntryPoint() const { return reinterpret_cast<uword>(function()); }
 
   // Generate code to call the runtime entry.
   void Call(Assembler* assembler, intptr_t argument_count) const;
 
+  void set_next(const RuntimeEntry* next) { next_ = next; }
+  const RuntimeEntry* next() const { return next_; }
+
  private:
   const char* name_;
   const RuntimeFunction function_;
   const intptr_t argument_count_;
   const bool is_leaf_;
   const bool is_float_;
+  const RuntimeEntry* next_;
 
   DISALLOW_COPY_AND_ASSIGN(RuntimeEntry);
 };
 
 
 // Helper macros for declaring and defining runtime entries.
 
 #define DEFINE_RUNTIME_ENTRY(name, argument_count)                             \
   extern void DRT_##name(NativeArguments arguments);                           \
   extern const RuntimeEntry k##name##RuntimeEntry(                             \
@@ skipping 27 matching lines @@
 
 #define END_LEAF_RUNTIME_ENTRY }
 
 #define DECLARE_LEAF_RUNTIME_ENTRY(type, name, ...)                            \
   extern const RuntimeEntry k##name##RuntimeEntry;                             \
   extern "C" type DLRT_##name(__VA_ARGS__)
 
 }  // namespace dart
 
 #endif  // VM_RUNTIME_ENTRY_H_