code review 5490053: runtime: make more build-friendly

src/pkg/runtime/mcentral.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.
 
 // Central free lists.
 //
 // See malloc.h for an overview.
 //
 // The MCentral doesn't actually contain the list of free objects; the MSpan does.
 // Each MCentral is two lists of MSpans: those with free objects (c->nonempty)
 // and those that are completely allocated (c->empty).
 //
 // TODO(rsc): tcmalloc uses a "transfer cache" to split the list
 // into sections of class_to_transfercount[sizeclass] objects
 // so that it is faster to move those lists between MCaches and MCentrals.
 
 #include "runtime.h"
-#include "arch.h"
+#include "arch_GOARCH.h"
 #include "malloc.h"
 
 static bool MCentral_Grow(MCentral *c);
 static void* MCentral_Alloc(MCentral *c);
 static void MCentral_Free(MCentral *c, void *v);
 
 // Initialize a single central free list.
 void
 runtime·MCentral_Init(MCentral *c, int32 sizeclass)
 {
@@ skipping 163 matching lines @@
                 p += size;
         }
         *tailp = nil;
         runtime·markspan((byte*)(s->start<<PageShift), size, n, size*n < (s->npages<<PageShift));
 
         runtime·lock(c);
         c->nfree += n;
         runtime·MSpanList_Insert(&c->nonempty, s);
         return true;
 }