code review 4167041: runtime: fix memory allocation on 386

src/pkg/runtime/malloc.goc

 // 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.
 
 // See malloc.h for overview.
 //
 // TODO(rsc): double-check stats.
 
 package runtime
 #include "runtime.h"
@@ skipping 211 matching lines @@
         return c;
 }
 
 int32 runtime·sizeof_C_MStats = sizeof(MStats);
 
 #define MaxArena32 (2U<<30)
 
 void
 runtime·mallocinit(void)
 {
-        byte *p, *q;
+        byte *p;
         uintptr arena_size, bitmap_size;
         extern byte end[];
 
         runtime·InitSizes();
 
         // Set up the allocation arena, a contiguous area of memory where
         // allocated data will be found.  The arena begins with a bitmap large
         // enough to hold 4 bits per allocated word.
         if(sizeof(void*) == 8) {
                 // On a 64-bit machine, allocate from a single contiguous reservation.
@@ skipping 227 matching lines @@
                 }
                 nret = (nret + sizeof(void*)-1) & ~(sizeof(void*)-1);
 
                 if(runtime·getfinalizer(obj.data, 0)) {
                         runtime·printf("runtime.SetFinalizer: finalizer already set");
                         goto throw;
                 }
         }
         runtime·addfinalizer(obj.data, finalizer.data, nret);
 }