Re: Minimal asterisk compilation

[Rich Felker <dalias@libc.org>]

On Sun, May 04, 2014 at 12:55:41PM +0300, Timo Teras wrote:
> On Sun, 04 May 2014 01:23:02 -0600
> Lance Fredrickson <lancethepants@gmail.com> wrote:
> 
> > Musl has caught my eye, and I've compiled various one-off binaries,
> > but wanted to compile a minimal asterisk setup for an embedded mipsel
> > device (router).
> > 
> > I've put my code here.
> > https://github.com/lancethepants/asterisk-embedded-musl
> > Sorry, I do things hacky.
> > 
> > I later moved over libc.so, and created ld-musl-mipsel.so.1
> > 
> > All the binaries I've compiled so far work fine, but the modules in 
> > asterisk have issues.
> > One example is
> > 
> > # /opt/asterisk/bin/ldd ./codec_ulaw.so /opt/asterisk/bin/ldd
> > (0x55550000) libc.so => /opt/asterisk/bin/ldd (0x55550000)
> > Error relocating ./codec_ulaw.so: ast_format_set: symbol not found
> > Error relocating ./codec_ulaw.so: __ast_mulaw: symbol not found
> > Error relocating ./codec_ulaw.so: ast_unregister_file_version: symbol 
> > not found
> > Error relocating ./codec_ulaw.so: ast_module_unregister: symbol not
> > found Error relocating ./codec_ulaw.so: __ast_lin2mu: symbol not found
> > Error relocating ./codec_ulaw.so: ast_unregister_translator: symbol
> > not found
> > Error relocating ./codec_ulaw.so: __ast_register_translator: symbol
> > not found
> > Error relocating ./codec_ulaw.so: ast_register_file_version: symbol
> > not found
> > Error relocating ./codec_ulaw.so: ast_module_register: symbol not
> > found
> 
> Those are symbols from the main 'asterisk' binary that the modules use.
> ldd cannot resolve them because it does not know about the main
> asterisk binary anything.

If that's the case, the problem is most likely that -rdynamic is
missing from the LDFLAGS. No idea why the build system would have
omitted it...

Rich