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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-03-05 06:53:23 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-03-15 17:06:04 +0100 |
| commit | e5ccf9f45d8bff6bfeafa561d2238b0e4beb415e (patch) | |
| tree | 7c08a9eb1014a8ab56abd30ceecccc2de935772c /tools | |
| parent | perf annotate: Add a comment on the symbol__parse_objdump_line() (diff) | |
| download | linux-e5ccf9f45d8bff6bfeafa561d2238b0e4beb415e.tar.xz linux-e5ccf9f45d8bff6bfeafa561d2238b0e4beb415e.zip | |
perf annotate: Factor out disasm__calc_percent()
Factor out calculation of histogram of a symbol into
disasm__calc_percent. It'll be used for later changes.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1362462812-30885-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/annotate.c | 49 |
1 files changed, 30 insertions, 19 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index fa347b169e27..a91d7b186081 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -603,6 +603,33 @@ struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disa return NULL; } +static double disasm__calc_percent(struct disasm_line *next, + struct annotation *notes, int evidx, + s64 offset, u64 len, const char **path) +{ + struct source_line *src_line = notes->src->lines; + struct sym_hist *h = annotation__histogram(notes, evidx); + unsigned int hits = 0; + double percent = 0.0; + + while (offset < (s64)len && + (next == NULL || offset < next->offset)) { + if (src_line) { + if (*path == NULL) + *path = src_line[offset].path; + percent += src_line[offset].percent; + } else + hits += h->addr[offset]; + + ++offset; + } + + if (src_line == NULL && h->sum) + percent = 100.0 * hits / h->sum; + + return percent; +} + static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start, struct perf_evsel *evsel, u64 len, int min_pcnt, int printed, int max_lines, struct disasm_line *queue) @@ -612,33 +639,17 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st if (dl->offset != -1) { const char *path = NULL; - unsigned int hits = 0; - double percent = 0.0; + double percent; const char *color; struct annotation *notes = symbol__annotation(sym); - struct source_line *src_line = notes->src->lines; - struct sym_hist *h = annotation__histogram(notes, evsel->idx); s64 offset = dl->offset; const u64 addr = start + offset; struct disasm_line *next; next = disasm__get_next_ip_line(¬es->src->source, dl); - while (offset < (s64)len && - (next == NULL || offset < next->offset)) { - if (src_line) { - if (path == NULL) - path = src_line[offset].path; - percent += src_line[offset].percent; - } else - hits += h->addr[offset]; - - ++offset; - } - - if (src_line == NULL && h->sum) - percent = 100.0 * hits / h->sum; - + percent = disasm__calc_percent(next, notes, evsel->idx, + offset, len, &path); if (percent < min_pcnt) return -1; |