Date: Sun, 13 Jul 2008 15:32:35 +0100 From: Bruce Cran <bruce@cran.org.uk> To: Dmitry Morozovsky <marck@rinet.ru> Cc: kan@freebsd.org, oleg@rinet.ru, freebsd-hackers@freebsd.org Subject: Re: profiling broken on RELENG_7/i386 Message-ID: <20080713153235.73eb34fd@tau> In-Reply-To: <20080713175927.R58331@woozle.rinet.ru> References: <20080704121833.J35668@woozle.rinet.ru> <20080713105548.GA55221@server.vk2pj.dyndns.org> <20080713175927.R58331@woozle.rinet.ru>
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--Sig_/PlfL1jC+oKtU.cy4Q98Dhjs Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Sun, 13 Jul 2008 18:01:12 +0400 (MSD) Dmitry Morozovsky <marck@rinet.ru> wrote: > On Sun, 13 Jul 2008, Peter Jeremy wrote: >=20 > PJ> On 2008-Jul-04 13:01:11 +0400, Dmitry Morozovsky <marck@rinet.ru> > PJ> wrote: > PJ> >It seems we step on a bug in gcc in RELENG_7/i386 > PJ> > > PJ> >It is triggered at least by profiling program which uses > PJ> >getopt(3): > PJ>=20 > PJ> I think it's actually in the profiling initialisation code. If > PJ> you try to run sample code under gdb, you can see that .mcount() > PJ> is not preserving %ecx, though main() assumes it does. >=20 > I see. However, I'm afraid we need knowledge of some gcc guru to > bring the fix in. >=20 This is a known bug in 7.x and has apparently been fixed in -CURRENT.=20 See http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dbin/119709 for more details. --=20 Bruce Cran --Sig_/PlfL1jC+oKtU.cy4Q98Dhjs Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFIehIHn4uvqcJsLfgRAkIAAKDM5Nvj+vZIaKrrzDlFKBsOCOcnYwCfThJd omxFsec1xVgm7lxxin5WAZ4= =g5/G -----END PGP SIGNATURE----- --Sig_/PlfL1jC+oKtU.cy4Q98Dhjs--
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