From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6770 invoked by alias); 5 Nov 2013 14:41:39 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 4870 invoked by uid 48); 5 Nov 2013 14:39:37 -0000 From: "neleai at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/46936] turn __attribute__ ((nonnull (x))) into assert in debug mode Date: Tue, 05 Nov 2013 14:41:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: neleai at seznam dot cz X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-11/txt/msg00360.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46936 --- Comment #3 from Ondrej Bilka --- > As per http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html, the > annotation on the example function there "causes the compiler to check that, in > calls to my_memcpy, arguments dest and src are non-null." Is this a > documentation bug, or does the functionality that you're asking for already exist? Gcc does not check that. Also this is not documentation request but request to add checks when _FORTIFY_SOURCE is defined. This would also mostly solve following bug http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17308