Re: [PATCH RFC v4 net-next 17/26] tracing: allow eBPF programs to be attached to events

[Andy Lutomirski]

On Aug 15, 2014 10:36 AM, "Alexei Starovoitov" <ast@xxxxxxxxxxxx> wrote:
>
> On Fri, Aug 15, 2014 at 10:20 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:
> > The downside of this approach is that compat support might be
> > difficult or impossible.
>
> Would do you mean by compat? 32-bit programs on 64-bit kernels?
> There is no such concept for eBPF. All eBPF programs are always
> operating on 64-bit registers.

Doesn't the eBPF program need to know sizeof(long) to read these
fields correctly?  Or am I misunderstanding what the code does?

--Andy
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