Subject: Re: [PATCH v17 15/15] Documentation: prctl/seccomp_filter

From: Andrew Morton <[email-masked]>
Date: Fri, 6 Apr 2012 14:26:44 -0700

On Thu, 29 Mar 2012 15:02:00 -0500
Will Drewry <[email-masked]> wrote:

> Documents how system call filtering using Berkeley Packet
> Filter programs works and how it may be used.
> Includes an example for x86 and a semi-generic
> example using a macro-based code generator.
> 
>
> ...
>
> +Adding architecture support
> +-----------------------
> +
> +See arch/Kconfig for the authoritative requirements.  In general, if an
> +architecture supports both ptrace_event and seccomp, it will be able to
> +support seccomp filter with minor fixup: SIGSYS support and seccomp return
> +value checking.  Then it must just add CONFIG_HAVE_ARCH_SECCOMP_FILTER
> +to its arch-specific Kconfig.
> diff --git a/samples/Makefile b/samples/Makefile
> index 2f75851..5ef08bb 100644
> --- a/samples/Makefile
> +++ b/samples/Makefile

Oh good, I was going to ask about that.

Can we get this code into tools/testing/selftests?  That way people
will run it more often and it's more likely to be maintained as the
code evolves.