Commit e94d53eb authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf hists: Add hists__filter_by_symbol 

This function will be used for simple (sub-)string matching filter based
on user input.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1331887855-874-1-git-send-email-namhyung.kim@lge.com


Signed-off-by: default avatarNamhyung Kim <namhyung.kim@lge.com>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 5090c6ae

tools/perf/util/hist.c

+35 −0
Original line number Diff line number Diff line
@@ -10,11 +10,14 @@ static bool hists__filter_entry_by_dso(struct hists *hists, 
				       struct hist_entry *he);

static bool hists__filter_entry_by_thread(struct hists *hists,

					  struct hist_entry *he);

static bool hists__filter_entry_by_symbol(struct hists *hists,

					  struct hist_entry *he);



enum hist_filter {

	HIST_FILTER__DSO,

	HIST_FILTER__THREAD,

	HIST_FILTER__PARENT,

	HIST_FILTER__SYMBOL,

};



struct callchain_param	callchain_param = {
@@ -420,6 +423,7 @@ static void hists__apply_filters(struct hists *hists, struct hist_entry *he) 
{

	hists__filter_entry_by_dso(hists, he);

	hists__filter_entry_by_thread(hists, he);

	hists__filter_entry_by_symbol(hists, he);

}



static void __hists__collapse_resort(struct hists *hists, bool threaded)
@@ -1247,6 +1251,37 @@ void hists__filter_by_thread(struct hists *hists) 
	}

}



static bool hists__filter_entry_by_symbol(struct hists *hists,

					  struct hist_entry *he)

{

	if (hists->symbol_filter_str != NULL &&

	    (!he->ms.sym || strstr(he->ms.sym->name,

				   hists->symbol_filter_str) == NULL)) {

		he->filtered |= (1 << HIST_FILTER__SYMBOL);

		return true;

	}



	return false;

}



void hists__filter_by_symbol(struct hists *hists)

{

	struct rb_node *nd;



	hists->nr_entries = hists->stats.total_period = 0;

	hists->stats.nr_events[PERF_RECORD_SAMPLE] = 0;

	hists__reset_col_len(hists);



	for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {

		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);



		if (hists__filter_entry_by_symbol(hists, h))

			continue;



		hists__remove_entry_filter(hists, h, HIST_FILTER__SYMBOL);

	}

}



int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)

{

	return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);

tools/perf/util/hist.h

+2 −0
Original line number Diff line number Diff line
@@ -62,6 +62,7 @@ struct hists { 
	const struct thread	*thread_filter;

	const struct dso	*dso_filter;

	const char		*uid_filter_str;

	const char		*symbol_filter_str;

	pthread_mutex_t		lock;

	struct events_stats	stats;

	u64			event_stream;
@@ -107,6 +108,7 @@ int hist_entry__annotate(struct hist_entry *self, size_t privsize); 


void hists__filter_by_dso(struct hists *hists);

void hists__filter_by_thread(struct hists *hists);

void hists__filter_by_symbol(struct hists *hists);



u16 hists__col_len(struct hists *self, enum hist_column col);

void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);

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