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From: Jeffrey Walton <noloader@gmail.com>
To: Rich Felker <dalias@libc.org>
Cc: musl@lists.openwall.com
Subject: Re: [musl] Is Musl responsible for runpath parsing in an elf file?
Date: Mon, 15 Jun 2020 21:25:15 -0400	[thread overview]
Message-ID: <CAH8yC8kLh6_AaYbZJ36XtQH=DY7hH41e=1AaD4=VNBv0VKzfOQ@mail.gmail.com> (raw)
In-Reply-To: <20200616011638.GH6430@brightrain.aerifal.cx>

On Mon, Jun 15, 2020 at 9:16 PM Rich Felker <dalias@libc.org> wrote:
>
> On Mon, Jun 15, 2020 at 08:45:18PM -0400, Jeffrey Walton wrote:
> > Hi Everyone,
> >
> > Please forgive my ignorance... Is Musl responsible for runpath parsing
> > during elf loading? If it matters, I'm working on Alpine Linux.
>
> Yes, loading of all libraries except the dynamic linker itself (which
> includes libc on musl) is the responsibility of the dynamic linker and
> is performed in userspace.
>
> When searching for a given library as a dependency (DT_NEEDED), musl's
> processing of rpath/runpath uses the runpath of the shared object
> that's depending on it and causing it to be pulled in, and continues
> this resolution recursively backwards, potentially up to the main
> program's runpath, if not found.

Thanks Rich.

I may have mis-filed this against Alpine:
https://gitlab.alpinelinux.org/alpine/aports/-/issues/11655.

Is it expected behavior? Should I move it to Musl bug tracker?

Jeff

  reply	other threads:[~2020-06-16  1:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-16  0:45 Jeffrey Walton
2020-06-16  1:16 ` Rich Felker
2020-06-16  1:25   ` Jeffrey Walton [this message]
2020-06-17 19:40     ` Szabolcs Nagy
2020-06-17 19:51       ` Jeffrey Walton

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