On Mon, Feb 9, 2015 at 9:45 PM, Alexei Starovoitov <ast@plumgrid.com> wrote:
> I thought we already stated that.
> Here is the quote from perf_event.h:
>          *      # The RAW record below is opaque data wrt the ABI
>          *      #
>          *      # That is, the ABI doesn't make any promises wrt to
>          *      # the stability of its content, it may vary depending
>          *      # on event, hardware, kernel version and phase of
>          *      # the moon.
>          *      #
>          *      # In other words, PERF_SAMPLE_RAW contents are not an ABI.
>
> and this example is reading PERF_SAMPLE_RAW events and
> uses locally defined structs to print them for simplicity.

to underline my point once more:
addition of bpf doesn't change at all what PERF_SAMPLE_RAW already
delivers to user space.
so no new ABIs anywhere.