Re: [PATCH RFC v3 0/8] syscalls: Add a shared table for all archs

[André Almeida]

Em 07/08/2026 17:43, Arnd Bergmann escreveu:
> On Fri, Aug 7, 2026, at 21:34, André Almeida wrote:
> > There's already a "common" table shared with a bunch of archs at
> > `scripts/syscall.tbl`, but due to historical reasons some archs will never be
> > able to move to this table and share all the numbers.
> >
> > The generic table starts from 403 (clock_gettime64), the first common syscall.
> >
> > I've compile tested for arm32, arm64, s390, mips and sparc, by comparing the
> > syscalls_*.h and unistd_*.h files generated before and after this patchset. For
> > most of cases the files are identical, for the few cases that they are not,
> > there's a note in the commit explaining why they are equivalent.
>
> Any reason you still didn't include the alpha version? As I mentioned
> before, I think this is the most important one to be in the initial
> set, to ensure the script can deal with the having two separate offsets
> without becoming too messy, or needing a rewrite to take multiple passes.
>
>        Arnd


One reason that I didn't include alpha on this version yet (but forgot 
to explain in the cover letter) is that alpha is the only arch that 
doesn't implement `set_mempolicy_home_node`, and the commit message that 
creates this syscall doesn't help to explain why. But for now I think I 
can do something similar to `memfd_secret` and add a new ABI or use the 
stub implementation.