code review 134200044: runtime: convert traceback*.c to Go

src/pkg/runtime/mgc0.c

 // 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.
 
 // Garbage collector (GC).
 //
 // GC is:
 // - mark&sweep
 // - mostly precise (with the exception of some C-allocated objects, assembly frames/arguments, etc)
 // - parallel (up to MaxGcproc threads)
@@ skipping 63 matching lines @@
         RootFinalizers  = 2,
         RootSpans       = 3,
         RootFlushCaches = 4,
         RootCount       = 5,
 };
 
 #define ScanConservatively ((byte*)1)
 
 // Initialized from $GOGC.  GOGC=off means no gc.
 extern int32 runtime·gcpercent;
-
-static FuncVal* poolcleanup;
-
-void
-sync·runtime_registerPoolCleanup(FuncVal *f)
-{
-        poolcleanup = f;
-}
-
-void
-runtime·clearpools(void)
-{
-        P *p, **pp;
-        MCache *c;
-        int32 i;
-
-        // clear sync.Pool's
-        if(poolcleanup != nil)
-                reflect·call(poolcleanup, nil, 0, 0);
-
-        for(pp=runtime·allp; p=*pp; pp++) {
-                // clear tinyalloc pool
-                c = p->mcache;
-                if(c != nil) {
-                        c->tiny = nil;
-                        c->tinysize = 0;
-                        c->sudogcache = nil;
-                }
-                // clear defer pools
-                for(i=0; i<nelem(p->deferpool); i++)
-                        p->deferpool[i] = nil;
-        }
-}
 
 // Holding worldsema grants an M the right to try to stop the world.
 // The procedure is:
 //
 //      runtime·semacquire(&runtime·worldsema);
 //      m->gcing = 1;
 //      runtime·stoptheworld();
 //
 //      ... do stuff ...
 //
@@ skipping 1769 matching lines @@
 
 void runtime·gc_unixnanotime(int64 *now);
 
 int64 runtime·unixnanotime(void)
 {
         int64 now;
 
         runtime·gc_unixnanotime(&now);
         return now;
 }