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Date: Wed, 31 Dec 2014 20:35:40 +0100
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: Re: Failed to execute /init (error -2) for system-wide musl
libc
* piranna@...il.com <piranna@...il.com> [2014-12-31 19:04:55 +0100]:
> On NodeOS we are having some problems creating an i686 cross-compiler
> using musl (https://github.com/NodeOS/NodeOS/pull/89).
>
> The point is that by generating a fully statically linked Node.js
> executable it boot correctly, but by using a dynamically one we get a
> "Failed to execute /init (error -2)" error. We have crafted the
> cross-compiler following the instructions at
> http://clfs.org/view/clfs-embedded with no lack. The fact is that
i think if static init works then try to use
that to boot up the system and then debug the
dynamic case..
you can run libc.so with a dynamic executable
as argument then you can debug the loader
if you have no debug tools on the target then
i think you can add dprintf's to early loader
code in src/ldso/dynlink.c which may help in
figuring out what fails
> executables compiled with the cross-toolchain works on our desktops
> but they don't on QEmu, and we've added all the dynamic libraries that
> readelf request (only libc.so, libstdc++.so & libgcc_s.so). As a
libgcc_s.so shouldnt be needed
> curious side note, when installing the musl-linked gcc libraries, the
> /lib/ld-musl-i386.so.1 link dissapear from the cross-toochain folder,
sounds like a clfs buildsystem issue
i've seen the symlink disappearing on openwrt buildsystem once
(that one was not deterministic) i'm not sure what caused it
> but also adding it by hand all the dynamic linked executables refuse
> to load on QEmu, also a simple "Hello World" that only depends on
> libc.so :-/
>
> We are getting out of ideas, any clue about what could be happening?
>
> Greetings, and Happy New Year :-)
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