Re: [Qemu-devel] [PATCH 1/4] Add module infrastructure to QEMU

[Anthony Liguori]

Jean-Christophe PLAGNIOL-VILLARD wrote:
> > diff --git a/module.h b/module.h
> > new file mode 100644
> > index 0000000..5aa3eaa
> > --- /dev/null
> > +++ b/module.h
> > @@ -0,0 +1,41 @@
> > +/*
> > + * QEMU Module Infrastructure
> > + *
> > + * Copyright IBM, Corp. 2009
> > + *
> > + * Authors:
> > + *  Anthony Liguori   <address@hidden>
> > + *
> > + * This work is licensed under the terms of the GNU GPL, version 2.  See
> > + * the COPYING file in the top-level directory.
> > + *
> > + */
> > +
> > +#ifndef QEMU_MODULE_H
> > +#define QEMU_MODULE_H
> > +
> > +#define module_init(function, priority)                                  \
> > +static void __attribute__((constructor)) qemu_init_ ## function(void) {  \
> > +   register_module_init(function, priority);                             \
> > +}
> > +
> > +#define module_exit(function, priority)                                  \
> > +static void __attribute__((constructor)) qemu_exit_ ## function(void) {  \
> >     
> constructor? ;-)
>   

Yes, that's intentional.  These functions just register functions, they 
don't actually call those functions.  This allows us to explicitly 
invoke the constructors/destructors when we want to instead of relying 
on gcc doing it before and after main.


--
Regards,

Anthony Liguori