[src/trunk]: src/lib/libc/stdlib Only define MADV_FREE do MADV_DONTNEED if it...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/416c84a53ec4
branches:  trunk
changeset: 474346:416c84a53ec4
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sun Jul 04 03:12:47 1999 +0000

description:
Only define MADV_FREE do MADV_DONTNEED if it's not already defined
by <sys/mman.h>.

diffstat:

 lib/libc/stdlib/malloc.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (36 lines):

diff -r ea91c9a22116 -r 416c84a53ec4 lib/libc/stdlib/malloc.c
--- a/lib/libc/stdlib/malloc.c  Sun Jul 04 02:57:51 1999 +0000
+++ b/lib/libc/stdlib/malloc.c  Sun Jul 04 03:12:47 1999 +0000
@@ -1,3 +1,5 @@
+/*     $NetBSD: malloc.c,v 1.18 1999/07/04 03:12:47 thorpej Exp $      */
+
 /*
  * ----------------------------------------------------------------------------
  * "THE BEER-WARE LICENSE" (Revision 42):
@@ -69,7 +71,6 @@
 #   include <sys/param.h>
 #   define malloc_pageshift             PGSHIFT
 #   define malloc_minsize               16U
-#   define MADV_FREE                    MADV_DONTNEED
 #endif /* __NetBSD__ */
 
 #if defined(__sparc__) && defined(sun)
@@ -81,7 +82,6 @@
 #   define INIT_MMAP() \
        { if ((fdzero=open("/dev/zero", O_RDWR, 0000)) == -1) \
            wrterror("open of /dev/zero"); }
-#   define MADV_FREE                   MADV_DONTNEED
 #endif /* __sparc__ */
 
 /* Insert your combination here... */
@@ -187,6 +187,10 @@
 #define INIT_MMAP()
 #endif
 
+#ifndef MADV_FREE
+#define MADV_FREE MADV_DONTNEED
+#endif
+
 /* Set when initialization has been done */
 static unsigned malloc_started;