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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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