Re: MUSL issue while loading C++ lib

[Szabolcs Nagy <nsz@port70.net>]

* N Jain <jain61@gmail.com> [2016-01-21 16:17:36 -0500]:
> >
> > > i think the musl linker should be able to deal with this :P
> >
> 
> 
> Do you mean linking using "g++" is not right way ? I am trying to find out

i meant the musl dynamic linker that loads the .so at runtime,
not the static linker you used at compilation.

> if I could use "ld" directly but not sure what options to use and how to
> pass libs.

when in doubt use -v too see what options gcc passes to ld

> I am using below commands to compile and link
> 
> gcc -c  a.c -o bin/a.o
> g++ -c acpp.cpp -o bin/acpp.o
> 
> g++   bin/a.o bin/acpp.o  -o a.elf
> 
> While reading about the difference between ld and g++ linking I found g++
> uses ld itself.
> Am I missing something ?
> 

i dont think so

and i think the linked binary is fine

libstdc++.so.6 vs libgcc_s.so.1 has some issues
which makes the musl linker fail to find some symbols.

i can't help further, you will have to debug it,
i'd try to look at dso->strings with gdb and why the find_sym fails
or recompile musl with some dprintf added,
or try a known working toolchain and compare against it,
or wait for other ideas..