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Date: Mon, 15 Jun 2020 21:25:15 -0400
From: Jeffrey Walton <>
To: Rich Felker <>
Subject: Re: Is Musl responsible for runpath parsing in an elf file?

On Mon, Jun 15, 2020 at 9:16 PM Rich Felker <> 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:

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


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