Re: dlopen'ing glibc linked libraries

[Szabolcs Nagy <nsz@port70.net>]

* Gabriel Jacobo <gabomdq@gmail.com> [2014-01-21 12:44:14 -0200]:
> But my question was oriented towards what's the goal for providing "full"
> binary compatibility with glibc.

no, full bug compatibility is not a goal (that would defeat the
purpose of a new libc)

that said, most apis are binary compatible with glibc (even for c++)

if you see a missing symbol or other breakage then please report it
here is a list of known issues:

http://wiki.musl-libc.org/wiki/Functional_differences_from_glibc

it may be possible to solve a lot of compatibility issues with
preloading an extra lib next to musl, i experimented with running
applications with

export LD_LIBRARY_PATH=/usr/lib:/usr/lib/i386-linux-gnu:/lib/i386-linux-gnu
export LD_PRELOAD=./libcompat.so
/lib/ld-musl-i386.so /usr/bin/something

on a debian system and a lot of things work (except the loader
crashes occasionally due to a kernel bug..)

(for instance glibc linked libstdc++ works easily or i can compile
with a glibc linked gcc loaded by musl)