You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA. */
/* Written by Derek R. Price <derek@ximbiot.com>. */
#define _(str) gettext (str)
+#if HAVE_MMAP
+/* Define MAP_FILE when it isn't otherwise. */
+# ifndef MAP_FILE
+# define MAP_FILE 0
+# endif
+/* Define MAP_FAILED for old systems which neglect to. */
+# ifndef MAP_FAILED
+# define MAP_FAILED ((void *)-1)
+# endif
+#endif
+
#if HAVE_MMAP || ! HAVE_POSIX_MEMALIGN
size_t pagesize = getpagesize ();
void *unaligned_ptr = malloc (size + pagesize - 1);
if (unaligned_ptr == NULL)
- return NULL;
+ {
+ /* Set errno. We don't know whether malloc already set errno: some
+ implementations of malloc do, some don't. */
+ errno = ENOMEM;
+ return NULL;
+ }
ret = (char *) unaligned_ptr
+ ((- (unsigned long) unaligned_ptr) & (pagesize - 1));
new_memnode (ret, unaligned_ptr);