From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25145 invoked by alias); 25 Apr 2014 08:20:48 -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 25089 invoked by uid 48); 25 Apr 2014 08:20:45 -0000 From: "vincent-gcc at vinc17 dot net" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/44786] -fsanitize=undefined: Turn on runtime code generation to check for undefined behavior Date: Fri, 25 Apr 2014 08:20:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: vincent-gcc at vinc17 dot net 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: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-04/txt/msg01878.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D44786 Vincent Lef=C3=A8vre changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |vincent-gcc at vinc17 dot = net --- Comment #8 from Vincent Lef=C3=A8vre --- GCC 4.9, which has just been released, has -fsanitize=3Dundefined (and some= other -fsanitize checks): http://gcc.gnu.org/onlinedocs/gcc-4.9.0/gcc/Debugging-Options.html#Debuggin= g-Options However it only gives a runtime diagnostic message. It basically lacks clan= g's -fno-sanitize-recover option to make the program abort (useful for test suites). After that, I suppose that this enhancement would be complete (it doesn't check all kinds of undefined behavior, such as the use of uninitial= ized variables, but clang doesn't do this either). >>From gcc-bugs-return-449859-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Apr 25 08:23:28 2014 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 29197 invoked by alias); 25 Apr 2014 08:23:28 -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 Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 28593 invoked by uid 55); 25 Apr 2014 08:23:22 -0000 From: "mpolacek at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/60156] GCC doesn't warn about variadic main Date: Fri, 25 Apr 2014 08:23:00 -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: 4.9.0 X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: mpolacek at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.10.0 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: 2014-04/txt/msg01879.txt.bz2 Content-length: 552 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60156 --- Comment #3 from Marek Polacek --- Author: mpolacek Date: Fri Apr 25 08:22:47 2014 New Revision: 209787 URL: http://gcc.gnu.org/viewcvs?rev=209787&root=gcc&view=rev Log: PR c/60156 * c-common.c (check_main_parameter_types): Warn about variadic main. * c-c++-common/pr60156.c: New test. Added: trunk/gcc/testsuite/c-c++-common/pr60156.c Modified: trunk/gcc/c-family/ChangeLog trunk/gcc/c-family/c-common.c trunk/gcc/testsuite/ChangeLog