Re: [PATCH v3 3/3] selftests: pidfd: add tests for PIDFD_SELF_*

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On Thu, Oct 17, 2024 at 10:37:00AM -0700, John Hubbard wrote:
> On 10/17/24 10:28 AM, Lorenzo Stoakes wrote:
> > On Thu, Oct 17, 2024 at 10:17:54AM -0700, John Hubbard wrote:
> > > On 10/17/24 5:06 AM, Lorenzo Stoakes wrote:
> ...
> > > > 	#ifndef __TOOLS_LINUX_PIDFD_H
> > > > 	#define __TOOLS_LINUX_PIDFD_H
> > > >
> > > > 	/*
> > > > 	 * Some systems have issues with the linux/fcntl.h import in linux/pidfd.h, so
> > > > 	 * work around this by setting the header guard.
> > > > 	 */
> > > > 	#define _LINUX_FCNTL_H
> > > > 	#include "../../../include/uapi/linux/pidfd.h"
> > > > 	#undef _LINUX_FCNTL_H
> > > >
> > > > 	#endif /* __TOOLS_LINUX_PIDFD_H */
> > > >
> > > >
> > > > Then the test code needs only to update the pidfd.h file to #include
> > > > <linux/pidfd.h> and add a simple $(TOOLS_INCLUDES) to the CFLAGS += line in
> > > > the pidfd self tests Makefile and we should be all good.
> > >
> > > Yes.
> > >
> > > >
> > > > That way we always import everything in this header correctly, we directly
> > > > document this issue, we include the header as you would in userland and we
> > > > should cover off all the issues?
> > >
> > > Very nice!
> >
> > Thanks!
> >
> > I saw from your other thread the idea was to take snapshots and to run scripts
> > to compare etc. but I suppose putting this into the known-stub directory
>
> Actually, I'm not running scripts, because the only time things need to
> change is when new selftests require a new include, or when something
> changes that selftests depend on.
>
> > tools/include/linux rather than tools/include/uapi/linux would avoid a conflict
> > here.
>
> This is the first time I've actually looked at tools/include/linux. That
> sounds about right, though.
>
> >
> > Or would you say the wrapper should regardless be in the uapi/linux directory?
> >
>
> No, not if there is already a better location, as you pointed out.

OK perfect, I have a patch series ready to go with this (and addressing
Christian's comments).

Shuah - if you are open to this approach then we should be good to go!

Thanks

>
>
> thanks,
> --
> John Hubbard
>




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