Re: [PATCH v6 net-next 4/6] bpf: enable bpf syscall on x64 and i386

[Daniel Borkmann]

On 08/26/2014 09:46 AM, Ingo Molnar wrote:
> * Alexei Starovoitov <ast@xxxxxxxxxxxx> wrote:
> > On Mon, Aug 25, 2014 at 8:52 PM, Stephen Hemminger
> > <stephen@xxxxxxxxxxxxxxxxxx> wrote:
> > > Per discussion at Kernel Summit. Every new syscall requires
> > > a manual page and test programs. We have had too many new syscalls
> > > that are DOA.
> >
> > There is verifier testsuite that is testing eBPF verifier from userspace
> > via bpf syscall. Also there are multiple examples and libbpf.
> > I think test coverage for bpf syscall is quite substantial already.
>
> This is in tools/bpf/, right?

No, it contains a BPF JIT disasm, bpf assembler and a debugger, but the
last two are for the 'classic' BPF interface only. There's a test suite
for BPF/eBPF in general under lib/test_bpf.c, but so far it tests only
the current code w/o eBPF verifier.

That said, I think Alexei is referring to the examples et al from the
bigger previous proposed patch set.
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