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SubjectRe: [PATCH -tip 00/13]tracing/kprobes: Dynamic events on module support
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On Mon, 2011-06-27 at 16:26 +0900, Masami Hiramatsu wrote:
> Hi Steven,
>
> Here, I'd like to push updates of dynamic events and perf-probe
> for supporting dynamic events on module.
>
> The main part of this series is 1-5th patches for kprobes and
> dynamic event tracer, which allows us to add events on offline
> kernel module. This means we can put events even on the init
> functions of the drivers before loading. The requirement of
> this feature comes from my recent experience of a driver
> debugging. It had a timing bug in the initialization routine,
> and it was hard to catch them without tracing the behavior.
>
> I added some perf-probe updates (which including some resent
> patches), And it's OK to pull only the main part (kprobes and
> ftrace patches) without perf updates.
>

OK I pulled in everything but patch 10, as that seemed to have an issue
with the message that David Ahern brought up. I left that one out as it
really wasn't necessary for the other patches. If you want to just
resend that one patch with an update, I can pull that one in too.

-- Steve

>
> Thank you,
>
> ---
>
> Masami Hiramatsu (13):
> perf probe: Support adding probes on offline kernel modules
> perf probe: Add probed module in front of function
> [RESEND]perf probe: Introduce debuginfo to encapsulate dwarf information
> [RESEND]perf probe: Warn when more than two lines are given
> [RESEND][CLEANUP]perf-probe: Move dwarf library routines to dwarf-aux.{c,h}
> [RESEND][CLEANUP]perf probe: Remove redundant dwarf functions
> [RESEND][CLEANUP]perf probe: Move strtailcmp to string.c
> [RESEND][CLEANUP]perf probe: Rename DIE_FIND_CB_FOUND to DIE_FIND_CB_END
> tracing/kprobe: Update symbol reference when loading module
> tracing/kprobes: Support module init function probing
> kprobes: Return -ENOENT if probe point doesn't exist
> [CLEANUP]tracing/kprobes: merge trace probe enable/disable functions
> [CLEANUP]tracing/kprobes: Rename probe_* to trace_probe_*
>
>
> Documentation/trace/kprobetrace.txt | 9
> kernel/kprobes.c | 33 +
> kernel/trace/trace_kprobe.c | 314 +++++++++----
> tools/perf/Documentation/perf-probe.txt | 6
> tools/perf/Makefile | 2
> tools/perf/builtin-probe.c | 14 -
> tools/perf/util/dwarf-aux.c | 663 +++++++++++++++++++++++++++
> tools/perf/util/dwarf-aux.h | 100 ++++
> tools/perf/util/probe-event.c | 165 +++++--
> tools/perf/util/probe-event.h | 1
> tools/perf/util/probe-finder.c | 752 ++++---------------------------
> tools/perf/util/probe-finder.h | 43 +-
> tools/perf/util/string.c | 19 +
> tools/perf/util/util.h | 1
> 14 files changed, 1304 insertions(+), 818 deletions(-)
> create mode 100644 tools/perf/util/dwarf-aux.c
> create mode 100644 tools/perf/util/dwarf-aux.h
>




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