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* [newlib-cygwin] Add MAP_EXCL flag for mmap(2).
@ 2018-08-24 13:08 Sebastian Huber
  0 siblings, 0 replies; only message in thread
From: Sebastian Huber @ 2018-08-24 13:08 UTC (permalink / raw)
  To: newlib-cvs;h=de24ef326df2e76f4e1963b9e306d344c870e265

commit de24ef326df2e76f4e1963b9e306d344c870e265
Author: kib <>
Date:   Thu Jun 19 05:00:39 2014 +0000

    Add MAP_EXCL flag for mmap(2).
    It should be combined with MAP_FIXED, and prevents the request from
    deleting existing mappings in the region, failing instead.
    Reviewed by:	alc
    Discussed with:	jhb
    Tested by:	markj, pho (previous version, as part of the bigger patch)
    Sponsored by:	The FreeBSD Foundation
    MFC after:	1 week

 newlib/libc/sys/rtems/include/sys/mman.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/newlib/libc/sys/rtems/include/sys/mman.h b/newlib/libc/sys/rtems/include/sys/mman.h
index 6c757c8..a13e3d1 100644
--- a/newlib/libc/sys/rtems/include/sys/mman.h
+++ b/newlib/libc/sys/rtems/include/sys/mman.h
@@ -89,6 +89,7 @@
  * Extended flags
+#define	MAP_EXCL	 0x00004000 /* for MAP_FIXED, fail if address is used */
 #define	MAP_NOCORE	 0x00020000 /* dont include these pages in a coredump */
 #define	MAP_PREFAULT_READ 0x00040000 /* prefault mapping for reading */
 #ifdef __LP64__

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