[ was: Re: [PATCH][gdb/tdep] Support catch syscall pipe2 for i386 ]

On 5/5/22 15:20, Simon Marchi wrote:
> I suppose we are missing more syscalls than that, given that new
> syscalls are added regularly, e.g. rseq:
> 
>    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d7822b1e24f2
> 
> As long as rseq is not listed in this file, it means a user wouldn't be
> able to use "catch syscall rseq", I suppose?  We would need a procedure
> to add new syscalls periodically.
> 

I've wrote a script gdb/syscalls/update-linux.sh that can be used to do 
the update automatically.  The idea being that target maintainers can 
run the script on their platform and do the update.

AFAICT, the previous approach was to generate directly from kernel 
sources.  The benefit there is that you don't need access to a specific 
platform to do the update (but you'd still need access to test I suppose).

[ FWIW, it seems the linux kernel migrated to some syscall.tbl approach, 
and perhaps generating from there could be an option. ]

Anyway, this script at least adds one option to do the update.

WDYT?

Thanks,
- Tom