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From: Florian Weimer <fw@deneb.enyo.de>
To: Jonathan Wakely <jwakely@redhat.com>
Cc: "Rich Felker" <dalias@libc.org>, Арсений <a@saur0n.science>,
	musl@lists.openwall.com
Subject: Re: [musl] Mutexes are not unlocking
Date: Mon, 23 Nov 2020 17:59:16 +0100	[thread overview]
Message-ID: <87zh383t7f.fsf@mid.deneb.enyo.de> (raw)
In-Reply-To: <20201123161907.GT1312820@redhat.com> (Jonathan Wakely's message of "Mon, 23 Nov 2020 16:19:07 +0000")

* Jonathan Wakely:

> Or users might be able to solve it for themselves by creating a tiny
> shared library that contains nothing but a symbol called
> __pthread_key_create and LD_PRELOADing that, so that the checks in the
> binaryware looking for that symbol become true.

Typically, that doesn't work for main programs because the link editor
will resolve weak unexported symbols to zero.  There might not be a
dynamic symbol entry for __pthread_key_create in this case.  Shared
objects are different in this regard.

I think interoperability for these mismatches has to come directly
from the mutex implementation.

      parent reply	other threads:[~2020-11-23 16:59 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-20  5:25 a
2020-11-20  5:58 ` Rich Felker
2020-11-21  6:46   ` Re[2]: " a
2020-11-21 15:51     ` Rich Felker
2020-11-22 18:43       ` Re[2]: " Арсений
2020-11-22 19:11         ` Rich Felker
2020-11-22 19:23           ` Florian Weimer
2020-11-22 19:28             ` Rich Felker
2020-11-22 19:45               ` Re[2]: " Арсений
2020-11-22 20:05               ` Арсений
2020-11-23 12:24                 ` Jonathan Wakely
2020-11-23 14:56                   ` Rich Felker
2020-11-23 16:58                     ` Jonathan Wakely
2020-11-23 11:41               ` Jonathan Wakely
2020-11-23 14:53                 ` Rich Felker
2020-11-23 16:19                   ` Jonathan Wakely
2020-11-23 16:51                     ` Rich Felker
2020-11-23 17:10                       ` Jonathan Wakely
2020-11-23 17:18                         ` Florian Weimer
2020-11-23 16:59                     ` Florian Weimer [this message]

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