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From: Andrew Pinski <pinskia@gmail.com>
Date: Tue, 28 Apr 2020 16:08:37 -0700
Message-ID: <CA+=Sn1mpqM2kW6X0LO+m4dqivs7YtvWMY1ATZbSB3r0XSdETHg@mail.gmail.com>
Subject: Re: glibc master won't build with GCC 10
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: GNU C Library <libc-alpha@sourceware.org>
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This should have been fixed already:
https://sourceware.org/bugzilla/show_bug.cgi?id=3D25097

Thanks,
Andrew

On Tue, Apr 28, 2020 at 3:54 PM H.J. Lu via Libc-alpha
<libc-alpha@sourceware.org> wrote:
>
> commit 6d246cb852d3c5ab721dc583112a59ac47dc374e
> Author: Florian Weimer <fweimer@redhat.com>
> Date:   Tue Apr 28 12:10:32 2020 +0200
>
>     misc: Remove sstk from the autogenerated system call list
>
>     This change should not have an effect because the system call was
>     never defined.  Also add the misssing attribute_compat_text_section
>     attribute to the sstk function (a minor optimization).  Also update t=
he
>     NEWS file to document the change.
>
>     Fixes commit 9cc93ba0973ad04ee26c515a1552afb85e73c6ba
>     ("misc: Turn sstk into a compat symbol").
>
> won't build with GCC 10:
>
> rtld.c: In function =E2=80=98dl_main=E2=80=99:
> rtld.c:1016:27: error: array subscript =E2=80=98cnt=E2=80=99 is outside t=
he bounds of
> an interior zero-length array =E2=80=98struct auditstate[0]=E2=80=99
> [-Werror=3Dzero-length-bounds]
>  1016 |    GL(dl_rtld_map).l_audit[cnt].cookie =3D (intptr_t) &GL(dl_rtld=
_map);
> In file included from ../include/dlfcn.h:4,
>                  from rtld.c:20:
> ../include/link.h:335:7: note: while referencing =E2=80=98l_audit=E2=80=
=99
>   335 |     } l_audit[0];
>       |       ^~~~~~~
> cc1: all warnings being treated as errors
> make[5]: *** [../o-iterator.mk:9:
> /export/build/gnu/tools-build/glibc/build-x86_64-linux/elf/rtld.os]
> Error 1
>
>
> --
> H.J.