Add MAP_SHARED_VALIDATE from Linux 4.15

Message ID	alpine.DEB.2.20.1802011814080.21283@digraph.polyomino.org.uk
State	New, archived
Headers	Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk Sender: libc-alpha-owner@sourceware.org Date: Thu, 1 Feb 2018 18:14:46 +0000 From: Joseph Myers <joseph@codesourcery.com> To: <libc-alpha@sourceware.org> Subject: Add MAP_SHARED_VALIDATE from Linux 4.15 Message-ID: <alpine.DEB.2.20.1802011814080.21283@digraph.polyomino.org.uk> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII"

Message ID

alpine.DEB.2.20.1802011814080.21283@digraph.polyomino.org.uk

State

New, archived

Headers

Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm
Precedence: bulk
Sender: libc-alpha-owner@sourceware.org
Date: Thu, 1 Feb 2018 18:14:46 +0000
From: Joseph Myers <joseph@codesourcery.com>
To: <libc-alpha@sourceware.org>
Subject: Add MAP_SHARED_VALIDATE from Linux 4.15
Message-ID: <alpine.DEB.2.20.1802011814080.21283@digraph.polyomino.org.uk>
User-Agent: Alpine 2.20 (DEB 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"

Commit Message

Joseph Myers Feb. 1, 2018, 6:14 p.m. UTC

  [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.

Comments

Dmitry V. Levin Feb. 6, 2018, 12:13 a.m. UTC | #1

On Thu, Feb 01, 2018 at 06:14:46PM +0000, Joseph Myers wrote:
> [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.

I've double-checked that this matches Linux 4.15 headers.

diff mbox

Patch

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