Introduce --ctl-fd[-ack] options to pass open file descriptors numbers from command line.
Signed-off-by: Alexey Budankov <[email protected]> --- tools/perf/builtin-record.c | 9 +++++++++ tools/perf/util/record.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 2278a3efc747..9cf738ff1cae 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1704,6 +1704,8 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) perf_evlist__start_workload(rec->evlist); } + perf_evlist__initialize_ctlfd(rec->evlist, opts->ctl_fd, opts->ctl_fd_ack); + if (opts->initial_delay) { pr_info(PERF_EVLIST__DISABLED_MSG); if (opts->initial_delay > 0) { @@ -1850,6 +1852,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) record__synthesize_workload(rec, true); out_child: + perf_evlist__finalize_ctlfd(rec->evlist); record__mmap_read_all(rec, true); record__aio_mmap_read_sync(rec); @@ -2331,6 +2334,8 @@ static struct record record = { }, .mmap_flush = MMAP_FLUSH_DEFAULT, .nr_threads_synthesize = 1, + .ctl_fd = -1, + .ctl_fd_ack = -1, }, .tool = { .sample = process_sample_event, @@ -2526,6 +2531,10 @@ static struct option __record_options[] = { OPT_UINTEGER(0, "num-thread-synthesize", &record.opts.nr_threads_synthesize, "number of threads to run for event synthesis"), + OPT_INTEGER(0, "ctl-fd", &record.opts.ctl_fd, + "Listen on fd descriptor for command to control measurement ('e': enable events, 'd': disable events)"), + OPT_INTEGER(0, "ctl-fd-ack", &record.opts.ctl_fd_ack, + "Send control command completion ('a') to fd ack descriptor"), OPT_END() }; diff --git a/tools/perf/util/record.h b/tools/perf/util/record.h index 96a73bbd8cd4..da18aeca3623 100644 --- a/tools/perf/util/record.h +++ b/tools/perf/util/record.h @@ -69,6 +69,8 @@ struct record_opts { int mmap_flush; unsigned int comp_level; unsigned int nr_threads_synthesize; + int ctl_fd; + int ctl_fd_ack; }; extern const char * const *record_usage; -- 2.24.1
