Date: Wed, 17 Jun 2020 15:51:38 -0400 From: Jeffrey Walton <noloader@...il.com> To: musl@...ts.openwall.com Subject: Re: Is Musl responsible for runpath parsing in an elf file? On Wed, Jun 17, 2020 at 3:40 PM Szabolcs Nagy <nsz@...t70.net> wrote: > > * Jeffrey Walton <noloader@...il.com> [2020-06-15 21:25:15 -0400]: > > On Mon, Jun 15, 2020 at 9:16 PM Rich Felker <dalias@...c.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? > > yeah i remember this discussion > > https://sourceware.org/legacy-ml/binutils/2019-06/msg00014.html > > i think there is no good solution, you have to figure > out the right level of escape magic for your build > system when passing runpath flags. Man, I'm getting old. I forgot about that discussion. My memory is not worth a shit anymore... Jeff
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