From owner-svn-src-all@freebsd.org  Wed Jul  8 16:21:11 2015
Return-Path: <owner-svn-src-all@freebsd.org>
Delivered-To: svn-src-all@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9EA1E996952;
 Wed,  8 Jul 2015 16:21:11 +0000 (UTC) (envelope-from pfg@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 814EF16AB;
 Wed,  8 Jul 2015 16:21:11 +0000 (UTC) (envelope-from pfg@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.70])
 by repo.freebsd.org (8.14.9/8.14.9) with ESMTP id t68GLBmW001910;
 Wed, 8 Jul 2015 16:21:11 GMT (envelope-from pfg@FreeBSD.org)
Received: (from pfg@localhost)
 by repo.freebsd.org (8.14.9/8.14.9/Submit) id t68GLBcd001909;
 Wed, 8 Jul 2015 16:21:11 GMT (envelope-from pfg@FreeBSD.org)
Message-Id: <201507081621.t68GLBcd001909@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: pfg set sender to pfg@FreeBSD.org
 using -f
From: "Pedro F. Giffuni" <pfg@FreeBSD.org>
Date: Wed, 8 Jul 2015 16:21:11 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r285277 - head/include
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all/>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Jul 2015 16:21:11 -0000

Author: pfg
Date: Wed Jul  8 16:21:10 2015
New Revision: 285277
URL: https://svnweb.freebsd.org/changeset/base/285277

Log:
  Use the __sentinel attribute.
  
  Start using the gcc sentinel attribute, which can be used to
  mark varargs function that need a NULL pointer to mark argument
  termination, like execl(3).
  
  Relnotes:	yes

Modified:
  head/include/unistd.h

Modified: head/include/unistd.h
==============================================================================
--- head/include/unistd.h	Wed Jul  8 16:20:20 2015	(r285276)
+++ head/include/unistd.h	Wed Jul  8 16:21:10 2015	(r285277)
@@ -327,9 +327,9 @@ int	 close(int);
 void	 closefrom(int);
 int	 dup(int);
 int	 dup2(int, int);
-int	 execl(const char *, const char *, ...);
+int	 execl(const char *, const char *, ...) __sentinel;
 int	 execle(const char *, const char *, ...);
-int	 execlp(const char *, const char *, ...);
+int	 execlp(const char *, const char *, ...) __sentinel;
 int	 execv(const char *, char * const *);
 int	 execve(const char *, char * const *, char * const *);
 int	 execvp(const char *, char * const *);