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perf report: Introduce helpers for processing callchains

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Continuing to try to remove the code duplication introduced with mem and
branch hist entry code, this time providing prologue and epilogues to
deal with callchains when processing samples.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-js3pour59yk2aibqzb1tpumh@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2013-12-18 18:16:18 -03:00
parent 44e8303944
commit 6dbc8ca97b
1 changed files with 32 additions and 40 deletions
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72
tools/perf/builtin-report.c
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@ -75,6 +75,24 @@ static int perf_report_config(const char *var, const char *value, void *cb)
return perf_default_config(var, value, cb);
}
static int report__resolve_callchain(struct perf_report *rep, struct symbol **parent,
struct perf_evsel *evsel, struct addr_location *al,
struct perf_sample *sample, struct machine *machine)
{
if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
return machine__resolve_callchain(machine, evsel, al->thread, sample,
parent, al, rep->max_stack);
}
return 0;
}
static int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *sample)
{
if (!symbol_conf.use_callchain)
return 0;
return callchain_append(he->callchain, &callchain_cursor, sample->period);
}
static int perf_report__add_mem_hist_entry(struct perf_tool *tool,
struct addr_location *al,
struct perf_sample *sample,
@ -85,19 +103,13 @@ static int perf_report__add_mem_hist_entry(struct perf_tool *tool,
struct perf_report *rep = container_of(tool, struct perf_report, tool);
struct symbol *parent = NULL;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
int err = 0;
struct hist_entry *he;
struct mem_info *mi, *mx;
uint64_t cost;
int err = report__resolve_callchain(rep, &parent, evsel, al, sample, machine);
if ((sort__has_parent || symbol_conf.use_callchain) &&
sample->callchain) {
err = machine__resolve_callchain(machine, evsel, al->thread,
sample, &parent, al,
rep->max_stack);
if (err)
return err;
}
if (err)
return err;
mi = machine__resolve_mem(machine, al->thread, sample, cpumode);
if (!mi)
@ -133,13 +145,7 @@ static int perf_report__add_mem_hist_entry(struct perf_tool *tool,
evsel->hists.stats.total_period += cost;
hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
err = 0;
if (symbol_conf.use_callchain) {
err = callchain_append(he->callchain,
&callchain_cursor,
sample->period);
}
err = hist_entry__append_callchain(he, sample);
out:
return err;
}
@ -152,19 +158,13 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
{
struct perf_report *rep = container_of(tool, struct perf_report, tool);
struct symbol *parent = NULL;
int err = 0;
unsigned i;
struct hist_entry *he;
struct branch_info *bi, *bx;
int err = report__resolve_callchain(rep, &parent, evsel, al, sample, machine);
if ((sort__has_parent || symbol_conf.use_callchain)
&& sample->callchain) {
err = machine__resolve_callchain(machine, evsel, al->thread,
sample, &parent, al,
rep->max_stack);
if (err)
return err;
}
if (err)
return err;
bi = machine__resolve_bstack(machine, al->thread,
sample->branch_stack);
@ -216,16 +216,11 @@ static int perf_evsel__add_hist_entry(struct perf_tool *tool,
{
struct perf_report *rep = container_of(tool, struct perf_report, tool);
struct symbol *parent = NULL;
int err = 0;
struct hist_entry *he;
int err = report__resolve_callchain(rep, &parent, evsel, al, sample, machine);
if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
err = machine__resolve_callchain(machine, evsel, al->thread,
sample, &parent, al,
rep->max_stack);
if (err)
return err;
}
if (err)
return err;
he = __hists__add_entry(&evsel->hists, al, parent, NULL, NULL,
sample->period, sample->weight,
@ -233,17 +228,14 @@ static int perf_evsel__add_hist_entry(struct perf_tool *tool,
if (he == NULL)
return -ENOMEM;
if (symbol_conf.use_callchain) {
err = callchain_append(he->callchain,
&callchain_cursor,
sample->period);
if (err)
return err;
}
err = hist_entry__append_callchain(he, sample);
if (err)
goto out;
err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
evsel->hists.stats.total_period += sample->period;
hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
out:
return err;
}