From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 92FE5385840B; Thu, 7 Oct 2021 07:50:12 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 92FE5385840B From: "kapinos at itc dot rwth-aachen.de" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/56659] Segfault due to missing libcpp error handler for "gfortran -cpp" Date: Thu, 07 Oct 2021 07:50:12 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 4.8.0 X-Bugzilla-Keywords: ice-on-invalid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: kapinos at itc dot rwth-aachen.de X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED 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: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Oct 2021 07:50:12 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D56659 --- Comment #7 from kapinos at itc dot rwth-aachen.de --- Sorry, for not adding the reproducer again. It is very K.I.S.S.: - make (or reuse) an dir w/o read permissions - use it as include dir at *any* Fortran source including empty ones. The output of gfortran 10.2.0 was added previously, cf. > f951: Warning: Include directory =E2=80=98./foo/bar=E2=80=99: Permission= denied > f951: internal compiler error: in cpp_diagnostic_at, at libcpp/errors.c:= 41 ....... $ cat runme007.sh mkdir -p foo/bar chmod 000 foo echo "-------------------------------------------------------------------------" gfortran -c -I./foo/bar mini.F90 echo "---------------------------------------------------------------------= ---" gfortran -v $ cat mini.F90 program mini end On 10/6/21 11:23 PM, burnus at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D56659 >=20 > --- Comment #6 from Tobias Burnus --- > (In reply to Paul from comment #5) >> Just tried all versions of gfortran available up to 10.2.0: the very same >> 'internal compiler error' is still reported using the initial reproducer. >=20 > Can you share the initial reproducer? The email link to gmane no longer w= orks > and what is written in the the original description and in the other email > lacks the details. It only has: >=20 > Test case: > * mkdir -p foo/bar > * chmod 000 foo > * gfortran -cpp some_file.F90 >=20 > But that obviously does not use 'foo/bar' at all. >=20 > I have no idea what's in 'some_file.F90'; the most straight-forward input= would > be: > echo '#include "foo/bar/file.f90"' > some_file.F90 > but when I try this, GCC 7, 8, 9, 10 of Ubuntu and the current development > version all show the same: > some_file.F90:2:2: > Fatal Error: foo/bar/file.f90: Permission denied >=20 > (The off-by-one line number issue is PR 100904.) >=20 > I assume that your file contains something different - but what? Can you > enlighten me? >=20 > * * * >=20 > A couple of fixes were done in the development branch (to be released as = GCC 12 > around April), cf. PR 55534. >=