From: Florian Weimer <fweimer@redhat.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>,
Florian Weimer via Libc-alpha <libc-alpha@sourceware.org>
Subject: Re: [PATCH 00/10] nptl: Complete libpthread removal
Date: Thu, 20 May 2021 17:13:13 +0200 [thread overview]
Message-ID: <87pmxlmoae.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <CAMe9rOoMAf-A-k-HCKRKCYakXza1VFXqihQBzZn7VkhaMX=HWQ@mail.gmail.com> (H. J. Lu's message of "Thu, 20 May 2021 08:09:59 -0700")
* H. J. Lu:
> On Thu, May 20, 2021 at 8:06 AM Florian Weimer via Libc-alpha
> <libc-alpha@sourceware.org> wrote:
>>
>> * Andreas Schwab:
>>
>> > On Mai 20 2021, Florian Weimer wrote:
>> >
>> >> That is, keep libpthread.so.0 around indefinitely (with the
>> >> placeholder symbols and symbol versions), and just wait until more and
>> >> more binaries are linked with the empty libpthread.a and no longer
>> >> have a DT_NEEDED dependency on libpthread.so.0?
>> >
>> > I don't see any downsides with this approach.
>>
>> There's a slight additional run-time overhead due to the loaded object.
>> But I don't feel strongly about this.
>>
>> Do you think it's okay if we ship libpthread.a only, or should we
>> install a no-op libpthread.so as well? -lpthread will use the .a file
>> for static and dynamic links, so I think that's sufficient.
>
> Can we ship a dummy linker script for libpthread.so to just
> satisfy -lpthread at link-time?
An empty libpthread.a already does that.
Thanks,
Florian
next prev parent reply other threads:[~2021-05-20 15:13 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-18 14:24 Florian Weimer
2021-05-18 14:24 ` [PATCH 01/10] nptl: Perform signal initialization upon pthread_create Florian Weimer
2021-05-20 19:15 ` Adhemerval Zanella
2021-05-20 19:41 ` Florian Weimer
2021-05-20 19:57 ` Adhemerval Zanella
2021-05-20 20:05 ` Florian Weimer
2021-05-20 20:32 ` Adhemerval Zanella
2021-05-21 9:58 ` Florian Weimer
2021-05-21 11:31 ` Adhemerval Zanella
2021-05-21 12:40 ` Adhemerval Zanella
2021-05-18 14:24 ` [PATCH 02/10] nptl: Eliminate the __static_tls_size, __static_tls_align_m1 variables Florian Weimer
2021-05-18 14:25 ` [PATCH 03/10] nptl: Move semi-public __pthread_get_minstack symbol into libc Florian Weimer
2021-05-18 14:25 ` [PATCH 04/10] elf: Use custom NODELETE DSO for tst-dlopenfail, tst-dlopenfail-2 Florian Weimer
2021-05-20 20:36 ` Adhemerval Zanella
2021-05-18 14:25 ` [PATCH 05/10] nptl: Move pthread_create, thrd_create into libc Florian Weimer
2021-05-20 20:44 ` Adhemerval Zanella
2021-05-18 14:25 ` [PATCH 06/10] nptl: Remove unused __libc_pthread_init function Florian Weimer
2021-05-18 14:49 ` Andreas Schwab
2021-05-18 14:25 ` [PATCH 07/10] nptl: Remove remaining code from libpthread Florian Weimer
2021-05-20 20:49 ` Adhemerval Zanella
2021-05-18 14:25 ` [PATCH 08/10] elf: Do not load libpthread for PTHREAD_IN_LIBC Florian Weimer
2021-05-20 20:53 ` Adhemerval Zanella
2021-05-21 19:15 ` Florian Weimer
2021-05-18 14:25 ` [PATCH 09/10] elf: Add facility to create stub DSOs in elf/stub-dsos Florian Weimer
2021-05-24 18:24 ` Adhemerval Zanella
2021-05-24 18:25 ` Adhemerval Zanella
2021-05-18 14:25 ` [PATCH 10/10] nptl: Stop building libpthread Florian Weimer
2021-05-18 14:56 ` [PATCH 00/10] nptl: Complete libpthread removal Andreas Schwab
2021-05-18 15:04 ` Florian Weimer
2021-05-18 15:26 ` Andreas Schwab
2021-05-18 15:51 ` Florian Weimer
2021-05-18 16:27 ` Andreas Schwab
2021-05-18 16:31 ` Florian Weimer
2021-05-18 16:47 ` Andreas Schwab
2021-05-20 13:27 ` Florian Weimer
2021-05-20 13:50 ` Andreas Schwab
2021-05-20 13:54 ` Florian Weimer
2021-05-20 14:01 ` Andreas Schwab
2021-05-20 15:09 ` H.J. Lu
2021-05-20 15:13 ` Florian Weimer [this message]
2021-05-20 15:17 ` Andreas Schwab
2021-05-20 15:35 ` H.J. Lu
2021-05-20 15:39 ` Florian Weimer
2021-05-20 15:57 ` H.J. Lu
2021-05-19 11:57 ` Szabolcs Nagy
2021-05-19 12:35 ` Florian Weimer
2021-05-19 13:14 ` Szabolcs Nagy
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