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Re: __stack_chk_fail in regexp is not defined


From: Glenn Washburn
Subject: Re: __stack_chk_fail in regexp is not defined
Date: Sat, 9 Nov 2013 23:09:35 -0600

On Sat, 09 Nov 2013 12:37:08 +0100
Vladimir 'φ-coder/phcoder' Serbinenko <address@hidden> wrote:

> On 09.11.2013 05:11, Andrey Borzenkov wrote:
> > В Fri, 8 Nov 2013 14:42:43 -0600
> > Glenn Washburn <address@hidden> пишет:
> > 
> >> On Fri, 08 Nov 2013 19:54:43 +0100
> >> Vladimir 'φ-coder/phcoder' Serbinenko <address@hidden> wrote:
> >>
> >>> On 08.11.2013 19:42, Glenn Washburn wrote:
> >>>> Now, I'm getting this error while building.  Bug in the awk
> >>>> script?
> >>>>
> >>>> cat syminfo.lst | sort | gawk
> >>>> -f ./grub.git/grub-core/genmoddep.awk
> >>>>> moddep.lst || (rm -f moddep.lst; exit 1) __stack_chk_fail in
> >>>>> regexp is
> >>>> not defined
> >>>>
> >>> What compiler do you use and which additional options did you
> >>> pass to it? It inserted this function call. We need either to
> >>> provide this function or inhibit compiler from emiting such calls.
> >>
> >> I'm using gcc 4.7 on Ubuntu from the ubuntu-toolchain-r/test ppa.
> >> I do see a reference to __stack_chk_fail at
> >> grub-core/efiemu/runtime/efiemu.c:192.  It doesn't look like that
> >> file is generated.  Perhaps that function was accidentally added
> >> to that file?
> > 
> > It comes from using -fstack-protector GCC option. But configure
> > should have added -fno-stack-protector in this case.
> > 
> > Could you check defaults using
> > 
> > /path/to/your/gcc -Q --help=common
> > 
> > whether it is active by default? Also whether -fno-stack-protector
> > was used during compilation?
> > 
> You're right.
> @Glenn: can you tell us exact version of GRUB (e.g. git commit) and
> attach config.log?

The commit for these logs is 9612ebc00ef5f186e9084b60ceeb1606d34f1d23.

It looks like stack protector is disabled in gcc and I don't believe
that -fno-stack-protector is being used.

Attachment: build-i386-pc.log.xz
Description: application/xz

Attachment: config-i386-pc.log.xz
Description: application/xz

Attachment: gcc.help=common.txt
Description: Text document

Attachment: signature.asc
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