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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-01-03 16:39:04 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-01-03 16:39:04 -0200
commit69aad6f1ee69546dea8535ab8f3da9f445d57328 (patch)
treeb328ec140a6a90703a049fcc661d623025d7e81f /tools/perf/util/trace-event-info.c
parent56f4c400349157289b474a3fd49ee96acab0a4d7 (diff)
downloadblackbird-op-linux-69aad6f1ee69546dea8535ab8f3da9f445d57328.tar.gz
blackbird-op-linux-69aad6f1ee69546dea8535ab8f3da9f445d57328.zip
perf tools: Introduce event selectors
Out of ad-hoc code and global arrays with hard coded sizes. This is the first step on having a library that will be first used on regression tests in the 'perf test' tool. [acme@felicio linux]$ size /tmp/perf.before text data bss dec hex filename 1273776 97384 5104416 6475576 62cf38 /tmp/perf.before [acme@felicio linux]$ size /tmp/perf.new text data bss dec hex filename 1275422 97416 1392416 2765254 2a31c6 /tmp/perf.new Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/trace-event-info.c')
-rw-r--r--tools/perf/util/trace-event-info.c30
1 files changed, 16 insertions, 14 deletions
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index b1572601286c..35729f4c40cb 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -34,11 +34,13 @@
#include <ctype.h>
#include <errno.h>
#include <stdbool.h>
+#include <linux/list.h>
#include <linux/kernel.h>
#include "../perf.h"
#include "trace-event.h"
#include "debugfs.h"
+#include "evsel.h"
#define VERSION "0.5"
@@ -469,16 +471,17 @@ out:
}
static struct tracepoint_path *
-get_tracepoints_path(struct perf_event_attr *pattrs, int nb_events)
+get_tracepoints_path(struct list_head *pattrs)
{
struct tracepoint_path path, *ppath = &path;
- int i, nr_tracepoints = 0;
+ struct perf_evsel *pos;
+ int nr_tracepoints = 0;
- for (i = 0; i < nb_events; i++) {
- if (pattrs[i].type != PERF_TYPE_TRACEPOINT)
+ list_for_each_entry(pos, pattrs, node) {
+ if (pos->attr.type != PERF_TYPE_TRACEPOINT)
continue;
++nr_tracepoints;
- ppath->next = tracepoint_id_to_path(pattrs[i].config);
+ ppath->next = tracepoint_id_to_path(pos->attr.config);
if (!ppath->next)
die("%s\n", "No memory to alloc tracepoints list");
ppath = ppath->next;
@@ -487,21 +490,21 @@ get_tracepoints_path(struct perf_event_attr *pattrs, int nb_events)
return nr_tracepoints > 0 ? path.next : NULL;
}
-bool have_tracepoints(struct perf_event_attr *pattrs, int nb_events)
+bool have_tracepoints(struct list_head *pattrs)
{
- int i;
+ struct perf_evsel *pos;
- for (i = 0; i < nb_events; i++)
- if (pattrs[i].type == PERF_TYPE_TRACEPOINT)
+ list_for_each_entry(pos, pattrs, node)
+ if (pos->attr.type == PERF_TYPE_TRACEPOINT)
return true;
return false;
}
-int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events)
+int read_tracing_data(int fd, struct list_head *pattrs)
{
char buf[BUFSIZ];
- struct tracepoint_path *tps = get_tracepoints_path(pattrs, nb_events);
+ struct tracepoint_path *tps = get_tracepoints_path(pattrs);
/*
* What? No tracepoints? No sense writing anything here, bail out.
@@ -545,14 +548,13 @@ int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events)
return 0;
}
-ssize_t read_tracing_data_size(int fd, struct perf_event_attr *pattrs,
- int nb_events)
+ssize_t read_tracing_data_size(int fd, struct list_head *pattrs)
{
ssize_t size;
int err = 0;
calc_data_size = 1;
- err = read_tracing_data(fd, pattrs, nb_events);
+ err = read_tracing_data(fd, pattrs);
size = calc_data_size - 1;
calc_data_size = 0;
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