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perf annotate: Introduce struct sym_hist_entry

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struct sym_hist has addr[] but it should have not only number of samples
but also the sample period.  So use new struct symhist_entry to pave the
way to have that.

Committer notes:

This initial patch will only introduce the struct sym_hist_entry and use
only the nr_samples member, which makes the code clearer and paves the
way to save the period as well.

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1500500205-16553-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Taeung Song
2017-07-20 06:36:45 +09:00
committed by Arnaldo Carvalho de Melo
parent b99e4850df
commit 896bccd3cb
4 changed files with 35 additions and 29 deletions
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9
tools/perf/util/annotate.h
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@@ -74,16 +74,21 @@ static inline bool disasm_line__has_offset(const struct disasm_line *dl)
return dl->ops.target.offset_avail;
}
struct sym_hist_entry {
u64 nr_samples;
u64 period;
};
void disasm_line__free(struct disasm_line *dl);
struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos);
int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
size_t disasm__fprintf(struct list_head *head, FILE *fp);
double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
s64 end, const char **path, u64 *nr_samples);
s64 end, const char **path, struct sym_hist_entry *sample);
struct sym_hist {
u64 sum;
u64 addr[0];
struct sym_hist_entry addr[0];
};
struct cyc_hist {