Error using dlopen(), dlsym() in XServer

Adam Jackson ajax at
Wed Sep 21 09:54:59 PDT 2005

On Wednesday 21 September 2005 10:39, kartikay malhotra wrote:
>  Dear peers,
>  Can the problem be traced to Imakefile? Some C files in Xserver source
> code seemlessly use dlopen. They don't even bother to include dlfcn.h. So
> I'm positive the problem is due to the Makefile.

You can not use dlopen from loadable modules.  Use the xf86Loader interface, 
which is documented in programs/Xserver/hw/xfree86/doc/DESIGN (section 17.4), 
and refer to the glide(4) driver for an example.

>  As an aside, my original library files have ".a" extensions; corresponding
> compiled sources from Xorg have library files with ".so" extensions.
> *make*in the ../fb folder using local Makefile yields both
> ** and *libfb.a *files. Are these different file formats the
> culprits.

Yes, we've changed module formats in 6.9.  If your server was using, 
dlopen would have magically worked, but you should still use the Loader 

- ajax
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