code review 12248043: runtime: print "created by" for running goroutines in t...

src/pkg/runtime/runtime.h

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 /*
  * basic types
  */
 typedef signed char             int8;
 typedef unsigned char           uint8;
 typedef signed short            int16;
@@ skipping 1021 matching lines @@
 void    runtime·mapassign(MapType*, Hmap*, byte*, byte*);
 void    runtime·mapaccess(MapType*, Hmap*, byte*, byte*, bool*);
 void    runtime·mapiternext(struct hash_iter*);
 bool    runtime·mapiterkey(struct hash_iter*, void*);
 Hmap*   runtime·makemap_c(MapType*, int64);
 
 Hchan*  runtime·makechan_c(ChanType*, int64);
 void    runtime·chansend(ChanType*, Hchan*, byte*, bool*, void*);
 void    runtime·chanrecv(ChanType*, Hchan*, byte*, bool*, bool*);
 bool    runtime·showframe(Func*, G*);
+void    runtime·printcreatedby(G*);
 
 void    runtime·ifaceE2I(InterfaceType*, Eface, Iface*);
 
 uintptr runtime·memlimit(void);
 
 // If appropriate, ask the operating system to control whether this
 // thread should receive profiling signals.  This is only necessary on OS X.
 // An operating system should not deliver a profiling signal to a
 // thread that is not actually executing (what good is that?), but that's
 // what OS X prefers to do.  When profiling is turned on, we mask
 // away the profiling signal when threads go to sleep, so that OS X
 // is forced to deliver the signal to a thread that's actually running.
 // This is a no-op on other systems.
 void    runtime·setprof(bool);
 
 // float.c
 extern float64 runtime·nan;
 extern float64 runtime·posinf;
 extern float64 runtime·neginf;
 extern uint64 ·nan;
 extern uint64 ·posinf;
 extern uint64 ·neginf;
 #define ISNAN(f) ((f) != (f))
 
 enum
 {
         UseSpanType = 1,
 };