Re: perf tools: add support for generating bpf prologue on powerpc

From: Michael Ellerman
Date: Sat May 07 2016 - 00:15:59 EST


On Thu, 2016-05-05 at 15:23:19 UTC, "Naveen N. Rao" wrote:
> Generalize existing macros to serve the purpose.
>
> Cc: Wang Nan <wangnan0@xxxxxxxxxx>
> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Cc: Ian Munsie <imunsie@xxxxxxxxxxx>
> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
> Signed-off-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
> ---
> With this patch:
> # ./perf test 37
> 37: Test BPF filter :
> 37.1: Test basic BPF filtering : Ok
> 37.2: Test BPF prologue generation : Ok
> 37.3: Test BPF relocation checker : Ok
>
> tools/perf/arch/powerpc/Makefile | 1 +
> tools/perf/arch/powerpc/util/dwarf-regs.c | 40 +++++++++++++++++++++----------
> 2 files changed, 29 insertions(+), 12 deletions(-)

Looks feasible, and is in powerpc only code, should I take this or acme?

cheers