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Add MAP_SHARED_VALIDATE from Linux 4.15
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Thu, 1 Feb 2018 18:14:46 +0000
- Subject: Add MAP_SHARED_VALIDATE from Linux 4.15
- Authentication-results: sourceware.org; auth=none
[Proposed for once the release changes for 2.27, and the post-release
changes opening master for development for 2.28, have been committed.]
This patch adds the MAP_SHARED_VALIDATE macro from Linux 4.15 to
bits/mman-linux.h and the hppa bits/mman.h.
Tested for x86_64.
2018-02-01 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_MISC]
(MAP_SHARED_VALIDATE): New macro.
* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]
(MAP_SHARED_VALIDATE): Likewise.
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h
index e61212a..70edeb6 100644
--- a/sysdeps/unix/sysv/linux/bits/mman-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h
@@ -42,6 +42,8 @@
#define MAP_SHARED 0x01 /* Share changes. */
#define MAP_PRIVATE 0x02 /* Changes are private. */
#ifdef __USE_MISC
+# define MAP_SHARED_VALIDATE 0x03 /* Share changes and validate
+ extension flags. */
# define MAP_TYPE 0x0f /* Mask for type of mapping. */
#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/mman.h b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
index 84ba0d6..380be7b 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/mman.h
@@ -34,6 +34,8 @@
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
#ifdef __USE_MISC
+# define MAP_SHARED_VALIDATE 0x03 /* Share changes and validate
+ extension flags. */
# define MAP_TYPE 0x03 /* Mask for type of mapping */
#endif
--
Joseph S. Myers
joseph@codesourcery.com