2018-02-02 16:24:29

by Arnaldo Carvalho de Melo

Subject: s390 unistd.h & perf

Hi Hendrik,

I noticed, after fast forwarding my perf/urgent branch to
torvalds/master, that this appears in my perf build:

Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/unistd.h' differs from latest version at 'arch/s390/include/uapi/asm/unistd.h'

Looking at the log for that file I noticed this cset:

4381f9f12e79 ("s390/syscalls: use generated syscall_table.h and unistd.h header files")

Can you please take a look how this affects the syscall table
generation process in tools/perf and how can we proceed to silence that
warning, i.e. to update the copy we have in tools/?

Thanks,

- Arnaldo

2018-02-05 08:17:53

by Hendrik Brueckner

Subject: Re: s390 unistd.h & perf

Hi Arnaldo,

On Fri, Feb 02, 2018 at 01:23:22PM -0300, Arnaldo Carvalho de Melo wrote:
>
> I noticed, after fast forwarding my perf/urgent branch to
> torvalds/master, that this appears in my perf build:
>
> Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/unistd.h' differs from latest version at 'arch/s390/include/uapi/asm/unistd.h'
>
> Looking at the log for that file I noticed this cset:
>
> 4381f9f12e79 ("s390/syscalls: use generated syscall_table.h and unistd.h header files")
>
> Can you please take a look how this affects the syscall table
> generation process in tools/perf and how can we proceed to silence that
> warning, i.e. to update the copy we have in tools/?

I reworked the our system call table a bit to also have a text file containing
the system calls. For this, I also have an update for perf. Will post these
patches by end of this week.

Thanks and kind regards,
Hendrik

2018-02-05 15:05:47

by Arnaldo Carvalho de Melo

Subject: Re: s390 unistd.h & perf

Em Mon, Feb 05, 2018 at 09:16:06AM +0100, Hendrik Brueckner escreveu:
> Hi Arnaldo,
>
> On Fri, Feb 02, 2018 at 01:23:22PM -0300, Arnaldo Carvalho de Melo wrote:
> >
> > I noticed, after fast forwarding my perf/urgent branch to
> > torvalds/master, that this appears in my perf build:
> >
> > Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/unistd.h' differs from latest version at 'arch/s390/include/uapi/asm/unistd.h'
> >
> > Looking at the log for that file I noticed this cset:
> >
> > 4381f9f12e79 ("s390/syscalls: use generated syscall_table.h and unistd.h header files")
> >
> > Can you please take a look how this affects the syscall table
> > generation process in tools/perf and how can we proceed to silence that
> > warning, i.e. to update the copy we have in tools/?
>
> I reworked the our system call table a bit to also have a text file containing
> the system calls. For this, I also have an update for perf. Will post these
> patches by end of this week.

Thanks,

- Arnaldo