Hi

Valgrind is a debugger completely in userspace. However it is closely
tied to the kernel and the arch, hence some code reading of the kernel
would definitely be required.
Afaik, as part of the porting work,  it would be required to write
wrapper code in valgrind for all system calls, among other things. The
netbsd binary being debugged will have to be provided with an
environment by valgrind to make it believe that its running on
netbsd/i386.
 =20
There should not be any kernel changes involved in this project.=20

I can continue discussion on tech-userlevel or such..  I posted to
tech-kern as its the list i was referred to ask for comments, as in
http://netbsd.org/contrib/projects.html#valgrind

Regards,
Kailash=20

On 6/6/05, Martin Husemann <martin@duskware.de> wrote:
> On Mon, Jun 06, 2005 at 11:35:51AM +0730, Kailash Sethuraman wrote:
> > So what do you guys think about this? Will it be a good entry? More
> > importantly, will this  be useful to NetBSD?
>=20
> Sounds interesting. Are there kernel changes involved? (Just wondering if
> this is the right mailing list - at first sight this sounds like a pkgsrc
> thing)
>=20
> Martin
>