lkml.org 
[lkml]   [2011]   [Nov]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 03/25] perf evlist: Introduce perf_evlist__add_attrs
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

Replacing the open coded equivalents in 'perf stat'.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
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-1btwadnf2tds2g07hsccsdse@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 40 +++++++---------------------------------
tools/perf/util/evlist.c | 34 ++++++++++++++++++++++++++++++++++
tools/perf/util/evlist.h | 7 +++++++
3 files changed, 48 insertions(+), 33 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 7d98676..227befb 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1107,22 +1107,13 @@ static const struct option options[] = {
*/
static int add_default_attributes(void)
{
- struct perf_evsel *pos;
- size_t attr_nr = 0;
- size_t c;
-
/* Set attrs if no event is selected and !null_run: */
if (null_run)
return 0;

if (!evsel_list->nr_entries) {
- for (c = 0; c < ARRAY_SIZE(default_attrs); c++) {
- pos = perf_evsel__new(default_attrs + c, c + attr_nr);
- if (pos == NULL)
- return -1;
- perf_evlist__add(evsel_list, pos);
- }
- attr_nr += c;
+ if (perf_evlist__add_attrs_array(evsel_list, default_attrs) < 0)
+ return -1;
}

/* Detailed events get appended to the event list: */
@@ -1131,38 +1122,21 @@ static int add_default_attributes(void)
return 0;

/* Append detailed run extra attributes: */
- for (c = 0; c < ARRAY_SIZE(detailed_attrs); c++) {
- pos = perf_evsel__new(detailed_attrs + c, c + attr_nr);
- if (pos == NULL)
- return -1;
- perf_evlist__add(evsel_list, pos);
- }
- attr_nr += c;
+ if (perf_evlist__add_attrs_array(evsel_list, detailed_attrs) < 0)
+ return -1;

if (detailed_run < 2)
return 0;

/* Append very detailed run extra attributes: */
- for (c = 0; c < ARRAY_SIZE(very_detailed_attrs); c++) {
- pos = perf_evsel__new(very_detailed_attrs + c, c + attr_nr);
- if (pos == NULL)
- return -1;
- perf_evlist__add(evsel_list, pos);
- }
+ if (perf_evlist__add_attrs_array(evsel_list, very_detailed_attrs) < 0)
+ return -1;

if (detailed_run < 3)
return 0;

/* Append very, very detailed run extra attributes: */
- for (c = 0; c < ARRAY_SIZE(very_very_detailed_attrs); c++) {
- pos = perf_evsel__new(very_very_detailed_attrs + c, c + attr_nr);
- if (pos == NULL)
- return -1;
- perf_evlist__add(evsel_list, pos);
- }
-
-
- return 0;
+ return perf_evlist__add_attrs_array(evsel_list, very_very_detailed_attrs);
}

int cmd_stat(int argc, const char **argv, const char *prefix __used)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index fbb4b4a..58aa1e0 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -13,6 +13,8 @@
#include "evsel.h"
#include "util.h"

+#include "parse-events.h"
+
#include <sys/mman.h>

#include <linux/bitops.h>
@@ -76,6 +78,14 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
++evlist->nr_entries;
}

+static void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
+ struct list_head *list,
+ int nr_entries)
+{
+ list_splice_tail(list, &evlist->entries);
+ evlist->nr_entries += nr_entries;
+}
+
int perf_evlist__add_default(struct perf_evlist *evlist)
{
struct perf_event_attr attr = {
@@ -100,6 +110,30 @@ error:
return -ENOMEM;
}

+int perf_evlist__add_attrs(struct perf_evlist *evlist,
+ struct perf_event_attr *attrs, size_t nr_attrs)
+{
+ struct perf_evsel *evsel, *n;
+ LIST_HEAD(head);
+ size_t i;
+
+ for (i = 0; i < nr_attrs; i++) {
+ evsel = perf_evsel__new(attrs + i, evlist->nr_entries + i);
+ if (evsel == NULL)
+ goto out_delete_partial_list;
+ list_add_tail(&evsel->node, &head);
+ }
+
+ perf_evlist__splice_list_tail(evlist, &head, nr_attrs);
+
+ return 0;
+
+out_delete_partial_list:
+ list_for_each_entry_safe(evsel, n, &head, node)
+ perf_evsel__delete(evsel);
+ return -1;
+}
+
void perf_evlist__disable(struct perf_evlist *evlist)
{
int cpu, thread;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 1779ffe..57d91ff 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -2,8 +2,10 @@
#define __PERF_EVLIST_H 1

#include <linux/list.h>
+#include <stdio.h>
#include "../perf.h"
#include "event.h"
+#include "util.h"

struct pollfd;
struct thread_map;
@@ -39,6 +41,11 @@ void perf_evlist__delete(struct perf_evlist *evlist);

void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
int perf_evlist__add_default(struct perf_evlist *evlist);
+int perf_evlist__add_attrs(struct perf_evlist *evlist,
+ struct perf_event_attr *attrs, size_t nr_attrs);
+
+#define perf_evlist__add_attrs_array(evlist, array) \
+ perf_evlist__add_attrs(evlist, array, ARRAY_SIZE(array))

void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
int cpu, int thread, u64 id);
--
1.7.8.rc0.35.gee6df


\
 
 \ /
  Last update: 2011-11-29 00:21    [from the cache]
©2003-2011 Jasper Spaans