Re: [PATCH v4 2/3] perf: kretprobes: offset from reloc_sym if kernel

From: Naveen N. Rao
Date: Tue Mar 07 2017 - 05:50:10 EST


On 2017/03/06 10:06PM, Masami Hiramatsu wrote:
> On Mon, 6 Mar 2017 23:19:09 +0530
> "Naveen N. Rao" <naveen.n.rao@xxxxxxxxxxxxxxxxxx> wrote:
>
> > Masami,
> > Your patch works, thanks! However, I felt we could refactor and reuse
> > some of the code across kprobes.c for this purpose. Can you please see
> > if the below patch is fine?
>
> OK, looks good to me:)
>
> Acked-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>

Thanks for the review, Masami!
I ended up adding one more patch to this series (patch 5/6) to move the
ftrace README scanning out of probe-file.c, as it doesn't need libelf.
Patch 6 fails to build without libelf otherwise. Please take a look.

Arnaldo,
I am re-sending the remaining patches in this series which apply on top
of the 4 patches you sent to Ingo, so as to keep this simple. All the
patches have been acked, except the new patch 5/6. Kindly take a look.

Thanks,
Naveen

--
Naveen N. Rao (6):
trace/kprobes: fix check for kretprobe offset within function entry
powerpc: kretprobes: override default function entry offset
perf: probe: factor out the ftrace README scanning
perf: kretprobes: offset from reloc_sym if kernel supports it
perf: probes: move ftrace README parsing logic into
trace-event-parse.c
perf: powerpc: choose local entry point with kretprobes

arch/powerpc/kernel/kprobes.c | 9 +++
include/linux/kprobes.h | 1 +
kernel/kprobes.c | 40 ++++++++-----
kernel/trace/trace_kprobe.c | 2 +-
tools/perf/arch/powerpc/util/sym-handling.c | 10 ++--
tools/perf/util/probe-event.c | 12 ++--
tools/perf/util/probe-file.c | 80 +++-----------------------
tools/perf/util/probe-file.h | 1 -
tools/perf/util/trace-event-parse.c | 89 +++++++++++++++++++++++++++++
tools/perf/util/trace-event.h | 4 ++
10 files changed, 149 insertions(+), 99 deletions(-)

--
2.11.1