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perf tools: Add ->cmp(), ->collapse() and ->sort() to perf_hpp_fmt

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Those function pointers will be used to sort report output based on
the selected fields.  This is a preparation of later change.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1400480762-22852-2-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
This commit is contained in:
Namhyung Kim 2014-03-03 10:59:57 +09:00 • committed by Jiri Olsa
parent 6480c56130
commit bc18b7f2e3
2 changed files with 38 additions and 4 deletions
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3
tools/perf/util/hist.h
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@ -160,6 +160,9 @@ struct perf_hpp_fmt {
struct hist_entry *he);
int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hist_entry *he);
int64_t (*cmp)(struct hist_entry *a, struct hist_entry *b);
int64_t (*collapse)(struct hist_entry *a, struct hist_entry *b);
int64_t (*sort)(struct hist_entry *a, struct hist_entry *b);
struct list_head list;
};