From: "Soni L." <fakedme+libc@gmail.com>
To: Florian Weimer <fweimer@redhat.com>,
Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: Libc-help <libc-help@sourceware.org>
Subject: Re: inode-based dlopen caching
Date: Tue, 8 Jun 2021 15:10:02 -0300 [thread overview]
Message-ID: <f5916313-62bb-b22d-db60-8da7ca2c00a4@gmail.com> (raw)
In-Reply-To: <87r1hc9ssx.fsf@oldenburg.str.redhat.com>
On 2021-06-08 2:20 p.m., Florian Weimer via Libc-help wrote:
> * Adhemerval Zanella:
>
>> But my main reservation with this is the idea of reload the new module
>> is, although the symbol resolution is a different namespace, it still
>> share the same process resources. It would require a lot of careful
>> code within the library so it can run with multiple instances, we see
>> the potential issues with our static dlopen support.
>
> It would work quite well for a lot of stateless JNI wrappers or Python
> extensions, though. That alone looks like a relevant use case to me.
>
> Thanks,
> Florian
>
The motivating use-case is hexchat plugins. Especially when they're
written in Rust. Rust is supposed to provide memory safety but some
edge-cases with dlopen break that, like truncating the shared library,
or closing a shared library that has spawned threads.
next prev parent reply other threads:[~2021-06-08 18:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-05 13:59 Soni L.
2021-06-07 21:53 ` Adhemerval Zanella
2021-06-07 22:50 ` Soni L.
2021-06-08 13:14 ` Adhemerval Zanella
2021-06-08 16:26 ` Soni L.
2021-06-08 16:51 ` Adhemerval Zanella
2021-06-08 16:56 ` Florian Weimer
2021-06-08 17:19 ` Adhemerval Zanella
2021-06-08 17:20 ` Florian Weimer
2021-06-08 18:10 ` Soni L. [this message]
2021-06-08 18:17 ` Florian Weimer
2021-06-08 19:25 ` Adhemerval Zanella
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