On Tue, Feb 04, 2020 at 11:08:22AM -0500, Marek Polacek wrote: > On Tue, Feb 04, 2020 at 10:51:17AM -0500, Adam Jackson wrote: > > On Sat, 2020-02-01 at 16:59 -0800, Kevin Fenzi wrote: > > > > > See > > > https://kojipkgs.fedoraproject.org/mass-rebuild/f32-failures.html > > > and > > > https://kojipkgs.fedoraproject.org/mass-rebuild/f32-need-rebuild.html > > > > > > for detailed lists of what needs rebuilding and what failed. > > > > libXt's failure on s390x seems to be repeatable, unique to that > > architecture, and frankly hilarious: > > Actually I can also reproduce on x86_64 with -O3: > > $ ./cc1 -quiet -O3 -Werror=array-bounds ajax.i > PassivGrab.c: In function ‘_XtCheckServerGrabsOnWidget’: > PassivGrab.c:291:54: error: array subscript 0 is outside array bounds of > ‘XtServerGrabRec[1]’ {aka ‘struct _XtServerGrabRec[1]’} [-Werror=array-bounds] > PassivGrab.c:546:21: note: while referencing ‘tempGrab’ > > > PassivGrab.c: In function '_XtCheckServerGrabsOnWidget': > > PassivGrab.c:292:35: error: array subscript 0 is outside array bounds of > > 'XtServerGrabRec[1]' {aka 'struct _XtServerGrabRec[1]'} > > [-Werror=array-bounds] > > 292 | first.pMask = GRABEXT(pFirstGrab)->pModifiersMask; > > PassivGrab.c:556:22: note: while referencing 'tempGrab' > > 556 | XtServerGrabRec tempGrab; > > | ^~~~~~~~ > > > > Where GRABEXT here is just doing the standard C trick for incrementing > > past the current struct and returning a (differently typed) pointer to > > the data beyond: > > > > #define GRABEXT(p) ((XtServerGrabExtPtr)((p)+1)) > > > > A scratch build, including a dump of PassivGrab.i in the build.log, can > > be found here: > > > > https://koji.fedoraproject.org/koji/taskinfo?taskID=41355653 > > > > Any ideas? > > Thanks, we'll take a look.
I've reduced the code and opened https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93582 -- Marek Polacek • Red Hat, Inc. • 300 A St, Boston, MA _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
