[PATCH -tip perf/probes 0/5] perf-probe and kprobe-tracer updates

From: Masami Hiramatsu
Date: Tue Nov 03 2009 - 19:17:55 EST


Here are some updates according to previous LKML threads.
- Update perf-probe document.
- Improve error messages.
- Fall back to non-dwarf mode if possible.
- Change group name to probe.
- Rename kprobe-tracer to kprobe-event.

BTW, I think perf-probe and kprobe-event might better share
similar syntax for not confusing users. And for that purpose,
perf-probe syntax should introduce event/group specifier,
for example,

perf probe "newgroup:newevnt=func:10 arg1 arg2"

adds the newevent under newgroup. On the other hand, ftrace
users can also add a new event as below;

echo 'newgroup:newevent=func+0x18 arg1=$a1 arg2=$a2' > kprobe_events

Any thoughts?

- Support --list option to show probes.
- Support --del option to remove probes.
- Simplify probe names.
- Support --line option to show which lines user can probe.
- Support lazy string matching.

Thank you,


Masami Hiramatsu (5):
tracing/kprobes: Rename Kprobe-tracer to kprobe-event
perf/probes: Rename perf probe events group name
perf/probes: Fall back to non-dwarf if possible
perf/probes: Improve error messages
perf/probe: Update Documentation/perf-probe.txt

Documentation/trace/kprobetrace.txt | 34 ++++++-------
kernel/trace/Kconfig | 19 ++++---
kernel/trace/Makefile | 2 -
kernel/trace/trace_kprobe.c | 6 +-
tools/perf/Documentation/perf-probe.txt | 17 +++---
tools/perf/builtin-probe.c | 84 ++++++++++++++++++-------------
tools/perf/util/probe-finder.c | 7 ++-
7 files changed, 95 insertions(+), 74 deletions(-)

Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division
e-mail: mhiramat@xxxxxxxxxx
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