public inbox for newlib-cvs@sourceware.org
help / color / mirror / Atom feed
* [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
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=de24ef326df2e76f4e1963b9e306d344c870e265
commit de24ef326df2e76f4e1963b9e306d344c870e265
Author: kib <kib@FreeBSD.org>
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
Diff:
---
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__
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-08-24 13:08 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-08-24 13:08 [newlib-cygwin] Add MAP_EXCL flag for mmap(2) Sebastian Huber
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).