[PATCH RFT 00/16] perf tools: Use generic syscall scripts for all archs

[Arnd Bergmann]

On Mon, Nov 4, 2024, at 22:06, Charlie Jenkins wrote:
> Standardize the generation of syscall headers around syscall tables.
> Previously each architecture independently selected how syscall headers
> would be generated, or would not define a way and fallback onto
> libaudit. Convert all architectures to use a standard syscall header
> generation script and allow each architecture to override the syscall
> table to use if they do not use the generic table.
>
> As a result of these changes, no architecture will require libaudit, and
> so the fallback case of using libaudit is removed by this series.
>
> Testing:
>
> I have tested that the syscall mappings of id to name generation works
> as expected for every architecture, but I have only validated that perf
> trace compiles and runs as expected on riscv, arm64, and x86_64.
>
> Signed-off-by: Charlie Jenkins <charlie at rivosinc.com>

Thanks for doing this, I had plans to do this myself, but hadn't
completed that bit so far. I'm travelling at the moment, so I'm
not sure I have time to look at it in enough detail this week.

One problem I ran into doing this previously was the incompatible
format of the tables for x86 and s390, which have conflicting
interpretations of what the '-' character means. It's possible
that this is only really relevant for the in-kernel table,
not the version in tools.

     Arnd