[Qemu-devel] Re: [HaikuPorts-devs] [PATCH 0/8] Add Haiku host support

[Andreas Färber]

Am 20.09.2010 um 21:04 schrieb Ingo Weinhold:

> On 2010-09-20 at 00:50:42 [+0200], Andreas Färber <address@hidden 
> > wrote:
> > The following patch series together with qemu_madvise() allows to  
> > build and
> > run QEMU on Haiku, using GCC 4.x.
> >
> > Patches 1-5 add support for Haiku hosts to build ppc-softmmu.
> > They are based on qemu_madvise() v7, since Haiku does not have  
> > madvise(),
> > but they do not depend on it themselves so could be cherry-picked.
>
> I didn't spot anything related to madvise() in any of the patches.

My saying. :)

> Anyway, Haiku does
> have posix_madvise(), which, unlike madvise(), is part of POSIX.

...which is exactly what qemu_madvise() takes care of, using a  
configure check.

http://repo.or.cz/w/qemu/afaerber.git/commit/e88131d2177cf12dba99c13fe5ff6a21d8fb7dc1

Unfortunately posix_madvise() doesn't supply us with the full spectrum  
of advice flags KVM needs, so we can't prefer it over madvise()  
despite being part of POSIX.

Regards,
Andreas