Re: isupper() core dump: also, gdb core dump

[Roland Illig <roland.illig%gmx.de@localhost>]

Am 21.07.2025 um 23:13 schrieb Thomas Klausner:
> Hi!
> 
> I've tried packaging Guitar (see wip/Guitar).  But when I run it, it
> fails with
> 
> ctype(3) isupper: invalid input: -61
> 
> I tried running it in gdb, but then gdb hangs or dumps core too.
> 
> I looked at all isupper() uses in the Guitar tarball itself, but they
> look fine, so I suspect one of the used libraries is unsafe or gets
> passed invalid data, but I'm not sure how to investigate it further.
> 
> Does gdb work on this for anyone else?
> Or can someone please fix gdb? :-)

I filed https://sourceware.org/bugzilla/show_bug.cgi?id=33217 for GDB.

Roland