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    Subject[RFC 0/4] trace,perf: Enabling ftrace:function tracepoint for perf
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    hi,

    attached patches add perf support for function trace.

    - Patch 1 adds support to register ftrace:function tracepoint.

    - Patch 2 adds a way to used filtering for ip and parent_ip fields.

    - Patches 3 and 4 are adding new ioctl to specify the filter on the
    "struct ftrace" level.

    I know this is probably not a good idea, but I dont see a good way
    to combine ftrace_ops filtering with tracepoint filtering other than
    keep them separated.

    My other guess is instead of ioctl use some keyword to specify functions
    followed by standard filter.. something like:

    "FUNCTION_TRACE(sys_open sys_close sys_read) (ip == sys_open)"

    Please take this more as a question about interface than forcing
    new ioctl.. ;)


    attached patches:
    - 1/4 perf, ftrace: Add perf support to use function tracepoint
    - 2/4 perf, ftrace: Add filter support
    - 3/4 perf, ftrace: Add new perf ioctl for function trace filter
    - 4/4 perf, ftrace: Add ftrace option for perf stat command


    thanks for comments,
    jirka
    ---
    include/linux/ftrace.h | 7 +-
    include/linux/ftrace_event.h | 9 +-
    include/linux/perf_event.h | 2 +
    kernel/events/core.c | 14 +++
    kernel/trace/ftrace.c | 34 +++++-
    kernel/trace/trace.h | 5 +
    kernel/trace/trace_event_perf.c | 225 +++++++++++++++++++++++++++++-------
    kernel/trace/trace_events.c | 10 +-
    kernel/trace/trace_events_filter.c | 32 ++++-
    kernel/trace/trace_export.c | 21 ++++
    kernel/trace/trace_kprobe.c | 6 +-
    kernel/trace/trace_syscalls.c | 14 ++-
    tools/perf/builtin-stat.c | 2 +
    tools/perf/util/evlist.c | 26 ++++-
    tools/perf/util/evlist.h | 2 +
    tools/perf/util/evsel.h | 1 +
    tools/perf/util/parse-events.c | 37 ++++++-
    tools/perf/util/parse-events.h | 1 +
    18 files changed, 376 insertions(+), 72 deletions(-)


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