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Commit 55e162ea authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf evlist: Add want_signal parameter to perf_evlist__prepare_workload() 



In case a caller doesn't want to receive SIGUSR1 when the child failed
to exec().

Signed-off-by: default avatarNamhyung 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/1362987798-24969-6-git-send-email-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 119fa3c9

tools/perf/builtin-record.c

+2 −1
Original line number Diff line number Diff line
@@ -475,7 +475,8 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) 


	if (forks) {

		err = perf_evlist__prepare_workload(evsel_list, &opts->target,

						    argv, opts->pipe_output);

						    argv, opts->pipe_output,

						    true);

		if (err < 0) {

			pr_err("Couldn't run the workload!\n");

			goto out_delete_session;

tools/perf/builtin-trace.c

+1 −1
Original line number Diff line number Diff line
@@ -462,7 +462,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv) 


	if (forks) {

		err = perf_evlist__prepare_workload(evlist, &trace->opts.target,

						    argv, false);

						    argv, false, false);

		if (err < 0) {

			printf("Couldn't run the workload!\n");

			goto out_delete_evlist;

tools/perf/tests/perf-record.c

+2 −1
Original line number Diff line number Diff line
@@ -93,7 +93,8 @@ 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.target, argv, false);

	err = perf_evlist__prepare_workload(evlist, &opts.target, argv,

					    false, false);

	if (err < 0) {

		pr_debug("Couldn't run the workload!\n");

		goto out_delete_maps;

tools/perf/util/evlist.c

+4 −2
Original line number Diff line number Diff line
@@ -746,7 +746,8 @@ int perf_evlist__open(struct perf_evlist *evlist) 


int perf_evlist__prepare_workload(struct perf_evlist *evlist,

				  struct perf_target *target,

				  const char *argv[], bool pipe_output)

				  const char *argv[], bool pipe_output,

				  bool want_signal)

{

	int child_ready_pipe[2], go_pipe[2];

	char bf;
@@ -796,6 +797,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, 
		execvp(argv[0], (char **)argv);



		perror(argv[0]);

		if (want_signal)

			kill(getppid(), SIGUSR1);

		exit(-1);

	}

tools/perf/util/evlist.h

+2 −1
Original line number Diff line number Diff line
@@ -87,7 +87,8 @@ void perf_evlist__config(struct perf_evlist *evlist, 


int perf_evlist__prepare_workload(struct perf_evlist *evlist,

				  struct perf_target *target,

				  const char *argv[], bool pipe_output);

				  const char *argv[], bool pipe_output,

				  bool want_signal);

int perf_evlist__start_workload(struct perf_evlist *evlist);



int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,