* config/cris/cris.c (cris_function_value_regno_p): Make static.

[pf3gnuchains/gcc-fork.git] / gcc / ggc-zone.c

diff --git a/gcc/ggc-zone.c b/gcc/ggc-zone.c
index 0fd5c2b..5257ada 100644 (file)
--- a/gcc/ggc-zone.c
+++ b/gcc/ggc-zone.c
@@ -30,7 +30,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "rtl.h"
 #include "tm_p.h"
 #include "diagnostic-core.h"
-#include "toplev.h"
 #include "flags.h"
 #include "ggc.h"
 #include "ggc-internal.h"
@@ -43,22 +42,10 @@ along with GCC; see the file COPYING3.  If not see
    file open.  Prefer either to valloc.  */
 #ifdef HAVE_MMAP_ANON
 # undef HAVE_MMAP_DEV_ZERO
-
-# include <sys/mman.h>
-# ifndef MAP_FAILED
-#  define MAP_FAILED -1
-# endif
-# if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
-#  define MAP_ANONYMOUS MAP_ANON
-# endif
 # define USING_MMAP
 #endif
 
 #ifdef HAVE_MMAP_DEV_ZERO
-# include <sys/mman.h>
-# ifndef MAP_FAILED
-#  define MAP_FAILED -1
-# endif
 # define USING_MMAP
 #endif
 
@@ -1086,6 +1073,24 @@ free_chunk (char *ptr, size_t size, struct alloc_zone *zone)
     fprintf (G.debug_file, "Deallocating object, chunk=%p\n", (void *)chunk);
 }
 
+/* For a given size of memory requested for allocation, return the
+   actual size that is going to be allocated.  */
+
+size_t
+ggc_round_alloc_size (size_t requested_size)
+{
+  size_t size;
+
+  /* Make sure that zero-sized allocations get a unique and freeable
+     pointer.  */
+  if (requested_size == 0)
+    size = MAX_ALIGNMENT;
+  else
+    size = (requested_size + MAX_ALIGNMENT - 1) & -MAX_ALIGNMENT;
+
+  return size;
+}
+
 /* Allocate a chunk of memory of at least ORIG_SIZE bytes, in ZONE.  */
 
 void *
@@ -1097,14 +1102,7 @@ ggc_internal_alloc_zone_stat (size_t orig_size, struct alloc_zone *zone
   struct small_page_entry *entry;
   struct alloc_chunk *chunk, **pp;
   void *result;
-  size_t size = orig_size;
-
-  /* Make sure that zero-sized allocations get a unique and freeable
-     pointer.  */
-  if (size == 0)
-    size = MAX_ALIGNMENT;
-  else
-    size = (size + MAX_ALIGNMENT - 1) & -MAX_ALIGNMENT;
+  size_t size = ggc_round_alloc_size (orig_size);
 
   /* Try to allocate the object from several different sources.  Each
      of these cases is responsible for setting RESULT and SIZE to
@@ -2476,7 +2474,7 @@ ggc_pch_read (FILE *f, void *addr)
 
   /* We've just read in a PCH file.  So, every object that used to be
      allocated is now free.  */
-#ifdef 0 && GATHER_STATISTICS
+#ifdef GATHER_STATISTICS
   zone_allocate_marks ();
   ggc_prune_overhead_list ();
   zone_free_marks ();