perf evlist: Pass struct perf_target to perf_evlist__prepare_workload()

It's a preparation step of removing @opts arg from the function so that
it can be used more widely.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1362987798-24969-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-record.c

@@ -474,7 +474,8 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 	}
 
 	if (forks) {
-		err = perf_evlist__prepare_workload(evsel_list, opts, argv);
+		err = perf_evlist__prepare_workload(evsel_list, &opts->target,
+						    opts, argv);
 		if (err < 0) {
 			pr_err("Couldn't run the workload!\n");
 			goto out_delete_session;

tools/perf/builtin-trace.c

@@ -461,7 +461,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 	signal(SIGINT, sig_handler);
 
 	if (forks) {
-		err = perf_evlist__prepare_workload(evlist, &trace->opts, argv);
+		err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
+						    &trace->opts, argv);
 		if (err < 0) {
 			printf("Couldn't run the workload!\n");
 			goto out_delete_evlist;

tools/perf/tests/perf-record.c

@@ -93,7 +93,7 @@ int test__PERF_RECORD(void)
 	 * so that we have time to open the evlist (calling sys_perf_event_open
 	 * on all the fds) and then mmap them.
 	 */
-	err = perf_evlist__prepare_workload(evlist, &opts, argv);
+	err = perf_evlist__prepare_workload(evlist, &opts.target, &opts, argv);
 	if (err < 0) {
 		pr_debug("Couldn't run the workload!\n");
 		goto out_delete_maps;

tools/perf/util/evlist.c

@@ -745,6 +745,7 @@ out_err:
 }
 
 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
+				  struct perf_target *target,
 				  struct perf_record_opts *opts,
 				  const char *argv[])
 {
@@ -800,7 +801,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
 		exit(-1);
 	}
 
-	if (perf_target__none(&opts->target))
+	if (perf_target__none(target))
 		evlist->threads->map[0] = evlist->workload.pid;
 
 	close(child_ready_pipe[1]);

tools/perf/util/evlist.h

@@ -86,6 +86,7 @@ void perf_evlist__config(struct perf_evlist *evlist,
 			 struct perf_record_opts *opts);
 
 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
+				  struct perf_target *target,
 				  struct perf_record_opts *opts,
 				  const char *argv[]);
 int perf_evlist__start_workload(struct perf_evlist *evlist);