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perf evsel: Introduce perf_evlist

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Killing two more perf wide global variables: nr_counters and evsel_list
as a list_head.

There are more operations that will need more fields in perf_evlist,
like the pollfd for polling all the fds in a list of evsel instances.

Use option->value to pass the evsel_list to parse_{events,filters}.

LKML-Reference: <new-submission>
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>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2011-01-11 20:56:53 -02:00
parent 00e99a49f6
commit 361c99a661
11 changed files with 180 additions and 118 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
tools/perf/builtin-stat.c
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@@ -43,6 +43,7 @@
#include "util/parse-options.h"
#include "util/parse-events.h"
#include "util/event.h"
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/debug.h"
#include "util/header.h"
@@ -71,6 +72,8 @@ static struct perf_event_attr default_attrs[] = {
};
struct perf_evlist *evsel_list;
static bool system_wide = false;
static struct cpu_map *cpus;
static int run_idx = 0;
@@ -309,7 +312,7 @@ static int run_perf_stat(int argc __used, const char **argv)
close(child_ready_pipe[0]);
}
list_for_each_entry(counter, &evsel_list, node) {
list_for_each_entry(counter, &evsel_list->entries, node) {
if (create_perf_stat_counter(counter) < 0) {
if (errno == -EPERM || errno == -EACCES) {
error("You may not have permission to collect %sstats.\n"
@@ -347,12 +350,12 @@ static int run_perf_stat(int argc __used, const char **argv)
update_stats(&walltime_nsecs_stats, t1 - t0);
if (no_aggr) {
list_for_each_entry(counter, &evsel_list, node) {
list_for_each_entry(counter, &evsel_list->entries, node) {
read_counter(counter);
perf_evsel__close_fd(counter, cpus->nr, 1);
}
} else {
list_for_each_entry(counter, &evsel_list, node) {
list_for_each_entry(counter, &evsel_list->entries, node) {
read_counter_aggr(counter);
perf_evsel__close_fd(counter, cpus->nr, threads->nr);
}
@@ -555,10 +558,10 @@ static void print_stat(int argc, const char **argv)
}
if (no_aggr) {
list_for_each_entry(counter, &evsel_list, node)
list_for_each_entry(counter, &evsel_list->entries, node)
print_counter(counter);
} else {
list_for_each_entry(counter, &evsel_list, node)
list_for_each_entry(counter, &evsel_list->entries, node)
print_counter_aggr(counter);
}
@@ -610,7 +613,7 @@ static int stat__set_big_num(const struct option *opt __used,
}
static const struct option options[] = {
OPT_CALLBACK('e', "event", NULL, "event",
OPT_CALLBACK('e', "event", &evsel_list, "event",
"event selector. use 'perf list' to list available events",
parse_events),
OPT_BOOLEAN('i', "no-inherit", &no_inherit,
@@ -648,6 +651,10 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
setlocale(LC_ALL, "");
evsel_list = perf_evlist__new();
if (evsel_list == NULL)
return -ENOMEM;
argc = parse_options(argc, argv, options, stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
@@ -679,17 +686,14 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
usage_with_options(stat_usage, options);
/* Set attrs and nr_counters if no event is selected and !null_run */
if (!null_run && !nr_counters) {
if (!null_run && !evsel_list->nr_entries) {
size_t c;
nr_counters = ARRAY_SIZE(default_attrs);
for (c = 0; c < ARRAY_SIZE(default_attrs); ++c) {
pos = perf_evsel__new(&default_attrs[c],
nr_counters);
pos = perf_evsel__new(&default_attrs[c], c);
if (pos == NULL)
goto out;
list_add(&pos->node, &evsel_list);
perf_evlist__add(evsel_list, pos);
}
}
@@ -713,7 +717,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
return -1;
}
list_for_each_entry(pos, &evsel_list, node) {
list_for_each_entry(pos, &evsel_list->entries, node) {
if (perf_evsel__alloc_stat_priv(pos) < 0 ||
perf_evsel__alloc_counts(pos, cpus->nr) < 0 ||
perf_evsel__alloc_fd(pos, cpus->nr, threads->nr) < 0)
@@ -741,9 +745,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
if (status != -1)
print_stat(argc, argv);
out_free_fd:
list_for_each_entry(pos, &evsel_list, node)
list_for_each_entry(pos, &evsel_list->entries, node)
perf_evsel__free_stat_priv(pos);
perf_evsel_list__delete();
perf_evlist__delete(evsel_list);
out:
thread_map__delete(threads);
threads = NULL;