perf tools: Add callback function to hist_entry_iter
The new ->add_entry_cb() will be called after an entry was added to
the histogram. It's used for code sharing between perf report and
perf top. Note that ops->add_*_entry() should set iter->he properly
in order to call the ->add_entry_cb.
Also pass @arg to the callback function. It'll be used by perf top
later.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arun Sharma <asharma@fb.com>
Tested-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/87k393g999.fsf@sejong.aot.lge.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 6cac509..21d830b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -80,14 +80,59 @@
return perf_default_config(var, value, cb);
}
-static void report__inc_stats(struct report *rep,
- struct hist_entry *he __maybe_unused)
+static void report__inc_stats(struct report *rep, struct hist_entry *he)
{
/*
- * We cannot access @he at this time. Just assume it's a new entry.
- * It'll be fixed once we have a callback mechanism in hist_iter.
+ * The @he is either of a newly created one or an existing one
+ * merging current sample. We only want to count a new one so
+ * checking ->nr_events being 1.
*/
- rep->nr_entries++;
+ if (he->stat.nr_events == 1)
+ rep->nr_entries++;
+}
+
+static int hist_iter__report_callback(struct hist_entry_iter *iter,
+ struct addr_location *al, bool single,
+ void *arg)
+{
+ int err = 0;
+ struct report *rep = arg;
+ struct hist_entry *he = iter->he;
+ struct perf_evsel *evsel = iter->evsel;
+ struct mem_info *mi;
+ struct branch_info *bi;
+
+ report__inc_stats(rep, he);
+
+ if (!ui__has_annotation())
+ return 0;
+
+ if (sort__mode == SORT_MODE__BRANCH) {
+ bi = he->branch_info;
+ err = addr_map_symbol__inc_samples(&bi->from, evsel->idx);
+ if (err)
+ goto out;
+
+ err = addr_map_symbol__inc_samples(&bi->to, evsel->idx);
+
+ } else if (rep->mem_mode) {
+ mi = he->mem_info;
+ err = addr_map_symbol__inc_samples(&mi->daddr, evsel->idx);
+ if (err)
+ goto out;
+
+ err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
+
+ } else if (symbol_conf.cumulate_callchain) {
+ if (single)
+ err = hist_entry__inc_addr_samples(he, evsel->idx,
+ al->addr);
+ } else {
+ err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
+ }
+
+out:
+ return err;
}
static int process_sample_event(struct perf_tool *tool,
@@ -100,6 +145,7 @@
struct addr_location al;
struct hist_entry_iter iter = {
.hide_unresolved = rep->hide_unresolved,
+ .add_entry_cb = hist_iter__report_callback,
};
int ret;
@@ -127,9 +173,8 @@
if (al.map != NULL)
al.map->dso->hit = 1;
- report__inc_stats(rep, NULL);
-
- ret = hist_entry_iter__add(&iter, &al, evsel, sample, rep->max_stack);
+ ret = hist_entry_iter__add(&iter, &al, evsel, sample, rep->max_stack,
+ rep);
if (ret < 0)
pr_debug("problem adding hist entry, skipping event\n");