From: Adhemerval Zanella via Libc-alpha <libc-alpha@sourceware.org>
To: Florian Weimer <fweimer@redhat.com>
Cc: Alistair Francis <alistair.francis@wdc.com>,
Adhemerval Zanella via Libc-alpha <libc-alpha@sourceware.org>
Subject: Re: __xstat et al. as compat symbols
Date: Thu, 22 Oct 2020 13:40:49 -0300 [thread overview]
Message-ID: <b44a3d4e-c4ef-4618-444b-e1077d155a9a@linaro.org> (raw)
In-Reply-To: <878sbynuep.fsf@oldenburg2.str.redhat.com>
On 22/10/2020 12:37, Florian Weimer wrote:
> * Adhemerval Zanella:
>
>> Thanks for bring this up, and I agree with you that this breakage might
>> incur in more headaches than solutions. I will send a fix to export
>> the xstat symbols in static objects as well, while preserving the compat
>> symbols on shared objects.
>
> Sorry, I do not see how the compat symbols work for the Ocaml use case?
> The compat symbol is what creates the Ocaml link failure. It has to be
> a non-compat symbol. We have to rely on lack of use in the installed
> headers (which does not seem to be a real problem in this particular
> case).
So the issue is Ocaml is providing static libraries that are meant to
generate dynamic linked binaries? Does it provide the same facility to
build static binaries and if it were the case, how this is done?
In the end, do still need to keep providing the xstat symbols in the
static library as well or just remove the compat symbol directive would
be suffice?
>
> By the way, I verified that glibc 2.0 binaries without symbol versioning
> can bind to the __xstat compat symbol. Apparently binaries can do that
> as long as they do not contain any version information at all:
>
> 165100: binding file /home/fweimer/src/my/glibc-test-binaries/gcc-2.7.2.3/i386/root/usr/bin/gcc [0] to ./libc.so.6 [0]: normal symbol `__xstat'
>
> Thanks,
> Florian
>
next prev parent reply other threads:[~2020-10-22 16:40 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 19:46 [PATCH 00/16] Add y2038 support for stat functions Adhemerval Zanella via Libc-alpha
2020-07-23 19:46 ` [PATCH 01/16] linux: Always define STAT_IS_KERNEL_STAT Adhemerval Zanella via Libc-alpha
2020-07-24 8:17 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 02/16] linux: Define STAT64_IS_KERNEL_STAT64 Adhemerval Zanella via Libc-alpha
2020-07-24 8:20 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 03/16] linux: Consolidate xstat{64} Adhemerval Zanella via Libc-alpha
2020-07-23 20:51 ` Joseph Myers
2020-07-24 8:34 ` Lukasz Majewski
2020-09-09 14:46 ` Lukasz Majewski
2020-09-09 18:05 ` Adhemerval Zanella via Libc-alpha
2020-09-10 7:10 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 04/16] linux: Consolidate lxstat{64} Adhemerval Zanella via Libc-alpha
2020-07-24 8:43 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 05/16] linux: Consolidate fxstat{64} Adhemerval Zanella via Libc-alpha
2020-07-24 9:04 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 06/16] linux: Consolidate fxstatat{64} Adhemerval Zanella via Libc-alpha
2020-07-24 9:14 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 07/16] Linux: Consolidate xmknod Adhemerval Zanella via Libc-alpha
2020-07-24 9:14 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 08/16] Remove internal usage of extensible stat functions Adhemerval Zanella via Libc-alpha
2020-07-24 9:16 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 09/16] Remove stat wrapper functions, move them to exported symbols Adhemerval Zanella via Libc-alpha
2020-07-24 9:23 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 10/16] Remove mknod wrapper functions, move them to symbols Adhemerval Zanella via Libc-alpha
2020-07-23 20:53 ` Joseph Myers
2020-07-23 20:58 ` Adhemerval Zanella via Libc-alpha
2020-07-23 21:01 ` Joseph Myers
2020-07-24 9:25 ` Lukasz Majewski
2020-10-12 22:27 ` Joseph Myers
2020-10-13 0:58 ` Adhemerval Zanella via Libc-alpha
2020-07-23 19:46 ` [PATCH 11/16] linux: Move the struct stat{64} to struct_stat.h Adhemerval Zanella via Libc-alpha
2020-07-24 9:27 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 12/16] linux: Implement {l}fstat{at} in terms of fstatat Adhemerval Zanella via Libc-alpha
2020-07-24 9:29 ` Lukasz Majewski
2020-07-23 19:46 ` [PATCH 13/16] linux: Disentangle fstatat from fxstatat Adhemerval Zanella via Libc-alpha
2020-07-24 9:39 ` Lukasz Majewski
2020-07-24 10:25 ` Florian Weimer via Libc-alpha
2020-07-24 14:39 ` Adhemerval Zanella via Libc-alpha
2020-07-23 19:46 ` [PATCH 14/16] linux: Move {f}xstat{at} to compat symbols Adhemerval Zanella via Libc-alpha
2020-07-24 9:40 ` Lukasz Majewski
2020-10-21 5:21 ` __xstat et al. as compat symbols (was: Re: [PATCH 14/16] linux: Move {f}xstat{at} to compat symbols) Florian Weimer via Libc-alpha
2020-10-21 11:59 ` Adhemerval Zanella via Libc-alpha
2020-10-21 12:57 ` __xstat et al. as compat symbols Florian Weimer via Libc-alpha
2020-10-21 13:09 ` Adhemerval Zanella via Libc-alpha
2020-10-22 10:08 ` Florian Weimer via Libc-alpha
2020-10-22 12:43 ` Adhemerval Zanella via Libc-alpha
2020-10-22 15:37 ` Florian Weimer via Libc-alpha
2020-10-22 16:40 ` Adhemerval Zanella via Libc-alpha [this message]
2020-10-22 18:04 ` Adhemerval Zanella via Libc-alpha
2020-07-23 19:46 ` [PATCH 15/16] linux: Add {f}stat{at} y2038 support Adhemerval Zanella via Libc-alpha
2020-07-23 20:55 ` Joseph Myers
2020-07-23 21:00 ` Adhemerval Zanella via Libc-alpha
2020-07-24 10:53 ` Lukasz Majewski
2020-07-30 12:42 ` Adhemerval Zanella via Libc-alpha
2020-08-02 19:46 ` Maciej W. Rozycki via Libc-alpha
2020-10-06 9:48 ` Lukasz Majewski
2020-10-07 12:52 ` Adhemerval Zanella via Libc-alpha
2020-10-07 14:25 ` Adhemerval Zanella via Libc-alpha
2020-10-07 20:20 ` Lukasz Majewski
2020-10-07 21:01 ` Adhemerval Zanella via Libc-alpha
2020-10-07 21:07 ` Adhemerval Zanella via Libc-alpha
2020-10-08 7:57 ` Lukasz Majewski
2020-10-09 14:05 ` Adhemerval Zanella via Libc-alpha
2020-10-09 15:39 ` Lukasz Majewski
2020-10-09 20:06 ` Adhemerval Zanella via Libc-alpha
2020-10-13 13:58 ` Lukasz Majewski
2020-10-13 14:18 ` Adhemerval Zanella via Libc-alpha
2020-10-13 14:23 ` H.J. Lu via Libc-alpha
2020-10-13 14:27 ` Adhemerval Zanella via Libc-alpha
2020-10-13 18:14 ` Adhemerval Zanella via Libc-alpha
2020-10-13 21:20 ` Lukasz Majewski
2020-10-13 21:40 ` Lukasz Majewski
2020-10-14 13:15 ` Lukasz Majewski
2020-10-14 13:39 ` Adhemerval Zanella via Libc-alpha
2020-07-23 19:46 ` [PATCH 16/16] linux: Move xmknoda{at} to compat symbols Adhemerval Zanella via Libc-alpha
2020-07-24 10:30 ` Florian Weimer via Libc-alpha
2020-07-24 12:34 ` Adhemerval Zanella via Libc-alpha
2020-07-24 12:43 ` Florian Weimer via Libc-alpha
2020-07-24 12:49 ` Adhemerval Zanella via Libc-alpha
2020-07-24 10:43 ` Lukasz Majewski
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