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perf annotate: Factor out disasm__calc_percent()

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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>
This commit is contained in:
Namhyung Kim 2013-03-05 14:53:23 +09:00 committed by Arnaldo Carvalho de Melo
parent 3aec150af3
commit e5ccf9f45d
1 changed files with 30 additions and 19 deletions
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49
tools/perf/util/annotate.c
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@ -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(&notes->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;