Correctly mark functions from our natives files during compilation.

src/runtime.cc

 // Copyright 2011 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 12256 matching lines @@
   return *result;
 }
 
 
 // Determines whether the given stack frame should be displayed in
 // a stack trace.  The caller is the error constructor that asked
 // for the stack trace to be collected.  The first time a construct
 // call to this function is encountered it is skipped.  The seen_caller
 // in/out parameter is used to remember if the caller has been seen
 // yet.
-static bool ShowFrameInStackTrace(StackFrame* raw_frame, Object* caller,
-    bool* seen_caller) {
+static bool ShowFrameInStackTrace(StackFrame* raw_frame,
+                                  Object* caller,
+                                  bool* seen_caller) {
   // Only display JS frames.
   if (!raw_frame->is_java_script())
     return false;
   JavaScriptFrame* frame = JavaScriptFrame::cast(raw_frame);
   Object* raw_fun = frame->function();
   // Not sure when this can happen but skip it just in case.
   if (!raw_fun->IsJSFunction())
     return false;
   if ((raw_fun == caller) && !(*seen_caller)) {
     *seen_caller = true;
     return false;
   }
-  // Skip all frames until we've seen the caller.  Also, skip the most
-  // obvious builtin calls.  Some builtin calls (such as Number.ADD
-  // which is invoked using 'call') are very difficult to recognize
-  // so we're leaving them in for now.
-  return *seen_caller && !frame->receiver()->IsJSBuiltinsObject();
+  // Skip all frames until we've seen the caller.
+  if (!(*seen_caller)) return false;
+  // Also, skip the most obvious builtin calls. We recognize builtins
+  // as (1) functions called with the builtins object as the receiver and
+  // as (2) functions from native scripts called with undefined as the
+  // receiver (direct calls to helper functions in the builtins
+  // code). Some builtin calls (such as Number.ADD which is invoked
+  // using 'call') are very difficult to recognize so we're leaving
+  // them in for now.
+  if (frame->receiver()->IsJSBuiltinsObject()) {
+    return false;
+  }
+  JSFunction* fun = JSFunction::cast(raw_fun);
+  Object* raw_script = fun->shared()->script();
+  if (frame->receiver()->IsUndefined() && raw_script->IsScript()) {
+    int script_type = Script::cast(raw_script)->type()->value();
+    return script_type != Script::TYPE_NATIVE;
+  }
+  return true;
 }
 
 
 // Collect the raw data for a stack trace.  Returns an array of 4
 // element segments each containing a receiver, function, code and
 // native code offset.
 RUNTIME_FUNCTION(MaybeObject*, Runtime_CollectStackTrace) {
   ASSERT_EQ(args.length(), 2);
   Handle<Object> caller = args.at<Object>(0);
   CONVERT_NUMBER_CHECKED(int32_t, limit, Int32, args[1]);
@@ skipping 364 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal