Date: Wed, 31 Mar 2021 19:54:09 -0400 From: Thomas Dickey <dickey@his.com> To: Juraj Lutter <otis@FreeBSD.org>, Henric Jungheim <software@henric.org>, FreeBSD-current@freebsd.org Cc: Thomas Dickey <dickey@his.com> Subject: Re: 13.0-RC3 bison causes tputs SIGSEGV Message-ID: <20210331235409.GA8773@prl-debianold-64.jexium-island.net> In-Reply-To: <20210331224955.GA8387@prl-debianold-64.jexium-island.net> References: <YGImt%2BhzWnQTUjz/@mail.henric.info> <20210329233138.GA4334@prl-debianold-64.jexium-island.net> <33EE2402-4447-4168-AB5B-D98009CD03AA@FreeBSD.org> <20210331004803.GA1607@prl-debianold-64.jexium-island.net> <YGR%2B1yOzagxgvpqk@mail.henric.info> <7E5FFF68-3FDC-42C4-A1C9-4B2F483FABC5@FreeBSD.org> <20210331224955.GA8387@prl-debianold-64.jexium-island.net>
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--zYM0uCDKw75PZbzx Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 31, 2021 at 06:49:55PM -0400, Thomas Dickey wrote: > On Wed, Mar 31, 2021 at 09:40:49PM +0200, Juraj Lutter wrote: > >=20 > > > On 31 Mar 2021, at 15:53, Henric Jungheim <software@henric.org> wrote: > > >=20 > > >>=20 > > >> Knowing that would help me see whether the problem is faulty initial= ization > > >> from libtextstyle (i.e., the SCREEN pointer is null, making the path= via > > >> the static structure), or some ifdef-combination in ncurses that I've > > >> neglected (i.e., a flaw in the pointer juggling). > >=20 > > I=E2=80=99ve observed that the application in question calls: > >=20 > > /* Create the output styled stream. */ > > pk_ostream =3D > > (color_mode =3D=3D color_html > > ? html_styled_ostream_create (file_ostream_create (stdout), > > style_file_name) > > : styled_ostream_create (STDOUT_FILENO, "(stdout)", > > TTYCTL_AUTO, style_file_name)); > >=20 > > Does it make any difference? >=20 > I don't know yet. I've been setting up a build for bison+libtextstyle > so that I can study it firsthand (and use valgrind, etc., to look for > problems). =2E..valgrind on Debian/testing (iirc, valgrind doesn't work with BSDs). However, aside from the cgetent stuff, the terminfo part of my test-setup matches what's in FreeBSD's build for ncurses. valgrind finds nothing amiss with the tests that I've done to exercise the libtextstyle code. (address-sanitizer may). By the way, ktruss could show what files are opened in your configuration, and a log from that would tell me if it's reading via the termcap interface. --=20 Thomas E. Dickey <dickey@invisible-island.net> https://invisible-island.net ftp://ftp.invisible-island.net --zYM0uCDKw75PZbzx Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQTFIEjAwHSP7iJ9R6JwI1Pg9+SO2wUCYGULngAKCRBwI1Pg9+SO 2413AKCN1zUG3i7v0HTGisUk5fG3hsTAiwCfbPuesggiiMCWOoEDP4kgsp6MQKU= =rSvX -----END PGP SIGNATURE----- --zYM0uCDKw75PZbzx--
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