Re: compat linux SIOCGIFCONF fix for 64bit archs

[Nicolas Joly <njoly%pasteur.fr@localhost>]

On Tue, Jul 01, 2008 at 10:13:31AM +0200, Roman Divacky wrote:
> On Mon, Jun 30, 2008 at 07:20:52PM +0200, Nicolas Joly wrote:
> > 
> > Hi,
> > 
> > Here follow a patch that fix SIOCGIFCONF ioctl under compat linux for
> > 64bits archs.
> > 
> > The main problem, here, is that Linux `struct ifreq' is not MI, but
> > our is ... By example, on Linux/x86_64 use a 40 bytes structure but
> > our corresponding structure has only 32 bytes (this works on i386,
> > because the Linux structure size is 32 bytes). This difference will
> > lead to an alignment problem when reporting the interfaces list with
> > SIOCGIFCONF ioctl.
> > 
> > To fix it, i added a new `struct linux_ifreq' which has the expected
> > size, and a new linux_getifconf() function that use it (a cleaned up
> > version of compat_ifconf()).
> 
> this is mostly what FreeBSD does... I believe you can copy some more
> code from us :)

Thanks.

> btw: any progress with the futexes?

Not much ... sorry.

-- 
Nicolas Joly

Biological Software and Databanks.
Institut Pasteur, Paris.