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From: "alex_y_xu at yahoo dot ca" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/28453] ld.so segfaults when relocating x86
 libstdc++.so compiled with -fno-plt
Date: Tue, 28 Dec 2021 17:32:05 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28453

--- Comment #15 from alex_y_xu at yahoo dot ca ---
(In reply to H.J. Lu from comment #14)
> (In reply to alex_y_xu from comment #13)
> > Although I have not tested it, the linked patch does not appear to reso=
lve
> > this issue. While I think the patch is a good idea, this issue is not
> > actually about invoking ld.so directly on the library. All programs lin=
ked
> > against this library also segfault on execution.
> >=20
> > $ docker run -it --rm fedora
> > [ ... ]
> > # dnf install g++ glibc-devel.i686 libstdc++-devel.i686
> > [ ... ]
> > # curl -o libstdc++.so.6
> > https://sourceware.org/bugzilla/attachment.cgi?id=3D13721
> > [ ... ]
> > # echo 'int main() {}' | g++ -m32 -x c++ -
> > # ./a.out; echo $?
> > 0
> > # LD_LIBRARY_PATH=3D. ./a.out; echo $?
> > Segmentation fault (core dumped)
> > 139
>=20
> Try:
>=20
> https://sourceware.org/pipermail/libc-alpha/2021-December/134004.html

I wasn't able to apply this to glibc 2.34 or glibc master. Are you sure it =
will
fix the issue of a.out crashing in the above example?

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