Re: [RFC PATCH 0/6] perf bpf: Probing with local variable

[Arnaldo Carvalho de Melo]

Em Wed, May 06, 2015 at 10:37:37AM +0900, Masami Hiramatsu escreveu:
> On 2015/05/05 19:10, He Kuang wrote:
> >   (79) r3 = *(u64 *)(r6 +88)
> >   (bf) r9 = r3
> >   (bf) r2 = r7
> >   (bf) r3 = r8
> >   (bf) r4 = r9
 
> Hmm, this idea looks good to me, I need to learn what the bpf needs for review.
> BTW, if it is so easily to compose the byte code in perf, can we do it in the
> kernel too? I'd like to check the possibility of replacing the old fetch_arg
> functions with these byte code for optimizing performance and reduce redundant
> functionality. :)

Excellent idea! ;-)

- Arnaldo
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