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From: "adhemerval.zanella at linaro dot org"
 <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug libc/30721] 2.38 build fails for  --disable-multiarch
 --enable-fortify-source , undefined reference to `__GI___memset_chk' and
 others
Date: Tue, 08 Aug 2023 20:23:05 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30721

Adhemerval Zanella <adhemerval.zanella at linaro dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |adhemerval.zanella at lina=
ro dot o
                   |                            |rg

--- Comment #2 from Adhemerval Zanella <adhemerval.zanella at linaro dot or=
g> ---
(In reply to Siddhesh Poyarekar from comment #1)
> I can't reproduce this on my Fedora box using:
>=20
> ../configure CFLAGS=3D"-march=3Dnocona -mtune=3Dnative -O2 -pipe" --prefi=
x=3D/usr
> --disable-multiarch --enable-fortify-source

It should be '--disable-multi-arch'.

>=20
> OR even
>=20
> ../configure CFLAGS=3D"-march=3Dnocona -mtune=3Dnative -O2 -pipe" CC=3D"g=
cc -m32"
> CXX=3D"g++ -m32" --enable-stack-protector=3Dstrong --disable-cet
> --enable-kernel=3D3.2.0 --without-selinux --disable-werror --enable-bind-=
now
> --enable-fortify-source --build=3Di686-pc-linux-gnu --host=3Di686-pc-linu=
x-gnu
> --disable-profile --without-gd --with-headers=3D/usr/include --prefix=3D/=
usr
> --disable-crypt --disable-multi-arch --disable-systemtap --disable-nscd
> ac_cv_path_PERL=3Dno libc_cv_aarch64_sve_asm=3Dyes --disable-timezone-too=
ls
>=20
> Maybe the gentoo compiler driver is injecting something that I need to add
> to this mix?

As I noted my proposed fix [1] only x86 is affected.  It is the only
architecture that tries to optimize the fortify wrapper with assembly routi=
nes.

[1] https://sourceware.org/pipermail/libc-alpha/2023-August/150746.html

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