From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 81841 invoked by alias); 21 Jun 2015 00:24:26 -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 81752 invoked by uid 48); 21 Jun 2015 00:24:17 -0000 From: "glaubitz at physik dot fu-berlin.de" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/66563] [4.9 Regression] ICE (segmentation fault) on sh4-linux-gnu Date: Sun, 21 Jun 2015 00:24:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.9.2 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: glaubitz at physik dot fu-berlin.de X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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: 2015-06/txt/msg01837.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D66563 --- Comment #23 from John Paul Adrian Glaubitz --- It seems that Kaz was right. Downgrading libmpfr fixes the issue for me: glaubitz@tirpitz:~/debian/segfault-test/wmfire-1.2.4/src$ gcc wmfire.c -o wmfire.o $(pkg-config --cflags gdk-2.0) $(pkg-config --cflags libgtop-2.0) wmfire.c: In function =E2=80=98do_help=E2=80=99: wmfire.c:770:62: error: =E2=80=98VERSION=E2=80=99 undeclared (first use in = this function) fprintf(stderr, "\nWmfire - Flaming Monitor Dock V %s\n\n", VERSION); ^ wmfire.c:770:62: note: each undeclared identifier is reported only once for each function it appears in glaubitz@tirpitz:~/debian/segfault-test/wmfire-1.2.4/src$ Adrian >>From gcc-bugs-return-489506-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Jun 21 00:58:05 2015 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 77636 invoked by alias); 21 Jun 2015 00:58:05 -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 72181 invoked by uid 48); 21 Jun 2015 00:57:59 -0000 From: "glaubitz at physik dot fu-berlin.de" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/66563] [4.9 Regression] ICE (segmentation fault) on sh4-linux-gnu Date: Sun, 21 Jun 2015 00:58:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.9.2 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: glaubitz at physik dot fu-berlin.de X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.3 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: 2015-06/txt/msg01838.txt.bz2 Content-length: 506 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66563 --- Comment #24 from John Paul Adrian Glaubitz --- (In reply to John Paul Adrian Glaubitz from comment #23) > It seems that Kaz was right. Downgrading libmpfr fixes the issue for me: In order to test whether this problem is actually a result of a miscompilation bug in gcc, I suggest building mpfr from source with a current gcc-4.9 and then run "make check" and see if the segfaults reproduce on native hardware.