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perf: optionally enable clockid and use_clockid

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Some kernels to not have this feature yet, so check for support in
linux/perf_event.h and optionally enable the struct field.
This commit is contained in:
Christian Hergert
2016-04-16 16:07:11 -07:00
parent de572f4ed6
commit 06aaff90e5
4 changed files with 41 additions and 9 deletions
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14
lib/sp-perf-counter.c
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@ -35,6 +35,10 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <errno.h>
#include <gio/gio.h>
#include <gio/gunixfdlist.h>
@ -650,7 +654,10 @@ sp_perf_counter_open (SpPerfCounter *self,
"("
"["
"{'comm', <%b>},"
#if HAVE_PERF_CLOCKID
"{'clockid', <%i>},"
"{'use_clockid', <%b>},"
#endif
"{'config', <%t>},"
"{'disabled', <%b>},"
"{'exclude_idle', <%b>},"
@ -660,15 +667,17 @@ sp_perf_counter_open (SpPerfCounter *self,
"{'sample_period', <%t>},"
"{'sample_type', <%t>},"
"{'task', <%b>},"
"{'type', <%u>},"
"{'use_clockid', <%b>}"
"{'type', <%u>}"
"],"
"%i,"
"%i,"
"%t"
")",
(gboolean)!!attr->comm,
#if HAVE_PERF_CLOCKID
(gint32)attr->clockid,
(gboolean)!!attr->use_clockid,
#endif
(guint64)attr->config,
(gboolean)!!attr->disabled,
(gboolean)!!attr->exclude_idle,
@ -679,7 +688,6 @@ sp_perf_counter_open (SpPerfCounter *self,
(guint64)attr->sample_type,
(gboolean)!!attr->task,
(guint32)attr->type,
(gboolean)!!attr->use_clockid,
(gint32)pid,
(gint32)cpu,
(guint64)flags);

9
lib/sp-perf-source.c
View File

@ -35,6 +35,10 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gio/gio.h>
#include <glib/gi18n.h>
#include <errno.h>
@ -292,9 +296,12 @@ sp_perf_source_start_pid (SpPerfSource *self,
attr.comm = 1;
attr.task = 1;
attr.exclude_idle = 1;
attr.sample_id_all = 1;
#if HAVE_PERF_CLOCKID
attr.clockid = sp_clock;
attr.use_clockid = 1;
attr.sample_id_all = 1;
#endif
attr.size = sizeof attr;