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    Subject[PATCH 13/21] perf tools: Add more hpp helper functions
    Date
    Sometimes it needs to disable some columns at runtime.  Add help
    functions to support that.

    Tested-by: Arun Sharma <asharma@fb.com>
    Acked-by: Jiri Olsa <jolsa@redhat.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Signed-off-by: Namhyung Kim <namhyung@kernel.org>
    ---
    tools/perf/ui/hist.c | 17 +++++++++++++++++
    tools/perf/util/hist.h | 4 ++++
    2 files changed, 21 insertions(+)

    diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
    index 0e411e2a5d69..4da0c7b19087 100644
    --- a/tools/perf/ui/hist.c
    +++ b/tools/perf/ui/hist.c
    @@ -489,6 +489,11 @@ void perf_hpp__column_register(struct perf_hpp_fmt *format)
    list_add_tail(&format->list, &perf_hpp__list);
    }

    +void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
    +{
    + list_del(&format->list);
    +}
    +
    void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
    {
    list_add_tail(&format->sort_list, &perf_hpp__sort_list);
    @@ -500,6 +505,18 @@ void perf_hpp__column_enable(unsigned col)
    perf_hpp__column_register(&perf_hpp__format[col]);
    }

    +void perf_hpp__column_disable(unsigned col)
    +{
    + BUG_ON(col >= PERF_HPP__MAX_INDEX);
    + perf_hpp__column_unregister(&perf_hpp__format[col]);
    +}
    +
    +void perf_hpp__cancel_cumulate(void)
    +{
    + perf_hpp__column_disable(PERF_HPP__OVERHEAD_ACC);
    + perf_hpp__format[PERF_HPP__OVERHEAD].header = hpp__header_overhead;
    +}
    +
    void perf_hpp__setup_output_field(void)
    {
    struct perf_hpp_fmt *fmt;
    diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
    index 8b62bc8ad740..69cf92f7faf5 100644
    --- a/tools/perf/util/hist.h
    +++ b/tools/perf/util/hist.h
    @@ -224,7 +224,11 @@ enum {

    void perf_hpp__init(void);
    void perf_hpp__column_register(struct perf_hpp_fmt *format);
    +void perf_hpp__column_unregister(struct perf_hpp_fmt *format);
    void perf_hpp__column_enable(unsigned col);
    +void perf_hpp__column_disable(unsigned col);
    +void perf_hpp__cancel_cumulate(void);
    +
    void perf_hpp__register_sort_field(struct perf_hpp_fmt *format);
    void perf_hpp__setup_output_field(void);
    void perf_hpp__append_sort_keys(void);
    --
    1.7.11.7


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