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SubjectRe: [GIT PULL] tracing/kprobes: Syntax updates, introduce perf probe

* Frederic Weisbecker <fweisbec@gmail.com> wrote:

> Ingo,
>
> I've tested a little this set and it seems to work well. I can't test
> the C expression parser (need some libdwarf cross-version
> compatiblity), but I can create kprobes via low-level parameters, then
> launch perf record and perf trace successfully. I'll need to update
> perf trace to handle variables that start with '$' characters though.
>
> Anyway, it's still unstable but I guess pulling it would help Masami
> to continue without the need to handle the whole batch.
>
> Please pull the tracing/kprobes branch that can be found at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git
> tracing/kprobes

Pulled, thanks Frederic.

> Documentation/trace/kprobetrace.txt | 27 +-
> kernel/trace/trace_kprobe.c | 160 +++++---
> tools/perf/Makefile | 10 +
> tools/perf/builtin-probe.c | 386 +++++++++++++++++++
> tools/perf/builtin.h | 1 +
> tools/perf/perf.c | 1 +
> tools/perf/util/probe-finder.c | 690 +++++++++++++++++++++++++++++++++++
> tools/perf/util/probe-finder.h | 70 ++++
> 8 files changed, 1271 insertions(+), 74 deletions(-)
> create mode 100644 tools/perf/builtin-probe.c
> create mode 100644 tools/perf/util/probe-finder.c
> create mode 100644 tools/perf/util/probe-finder.h

Hm, there's no x86 decoder change here - does this lot fixes the
instruction decoder bug i reported some time ago? That is which keeps
tracing/kprobes out of tip:master.

Ingo


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