From 55e162ea764cb5b38f27ea0b16ee7d31c1a5aedb Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:17 +0900 Subject: [PATCH] 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: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 3 ++- tools/perf/builtin-trace.c | 2 +- tools/perf/tests/perf-record.c | 3 ++- tools/perf/util/evlist.c | 6 ++++-- tools/perf/util/evlist.h | 3 ++- 5 files changed, 11 insertions(+), 6 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 2a43c4423f6a..80cc3ea07788 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -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; diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 3d9944c3d851..f0c20ef0cd1c 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -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; diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index a1c41b7d3c07..ffab5a41ff0a 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -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; diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 9a337f091b22..5b012b8d7a14 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -746,7 +746,8 @@ out_err: 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; @@ -796,7 +797,8 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, execvp(argv[0], (char **)argv); perror(argv[0]); - kill(getppid(), SIGUSR1); + if (want_signal) + kill(getppid(), SIGUSR1); exit(-1); } diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 276a5acc56e6..c096da7d6d58 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -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, -- 2.30.2