Re: [Qemu-devel] RFC: DSO (dynamic shared objects) support

[Laszlo Ersek]

On 06/18/13 13:37, Michael Tokarev wrote:

> Next, and this is the most complex part.  The build system for
> modules, and configuring it.   I heard there were plans to use
> something like kbuild system for that, has anything been done
> in this context?

Sorry for responding separately... Some module/symbol versioning will be
necessary, as the binding will be delayed until runtime, and users
*will* mix and match qemu and modules, and get random crashes. AFAIK
versioning is a good way to avoid that (you would get an error in
dlopen(), and dlerror() would pinpoint problem).

No idea how to implement this though, except I expect there's no chance
to do it halfway portably without libtool.

POSIX is very laconic regarding shared libraries, for example

  http://pubs.opengroup.org/onlinepubs/9699919799/utilities/c99.html

in SUSv4 doesn't say anything about them.

Laszlo