diff options
Diffstat (limited to 'tools/tracing/rtla/src/timerlat_hist.c')
| -rw-r--r-- | tools/tracing/rtla/src/timerlat_hist.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c index fbe2c6549bf9..a3907c390d67 100644 --- a/tools/tracing/rtla/src/timerlat_hist.c +++ b/tools/tracing/rtla/src/timerlat_hist.c @@ -652,7 +652,7 @@ static void timerlat_hist_usage(char *usage) char *msg[] = { "", " usage: [rtla] timerlat hist [-h] [-q] [-d s] [-D] [-n] [-a us] [-p us] [-i us] [-T us] [-s us] \\", - " [-t[=file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] [-c cpu-list] [-H cpu-list]\\", + " [-t[file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] [-c cpu-list] [-H cpu-list]\\", " [-P priority] [-E N] [-b N] [--no-irq] [--no-thread] [--no-header] [--no-summary] \\", " [--no-index] [--with-zeros] [--dma-latency us] [-C[=cgroup_name]] [--no-aa] [--dump-task] [-u|-k]", " [--warm-up s]", @@ -669,7 +669,7 @@ static void timerlat_hist_usage(char *usage) " -d/--duration time[m|h|d]: duration of the session in seconds", " --dump-tasks: prints the task running on all CPUs if stop conditions are met (depends on !--no-aa)", " -D/--debug: print debug info", - " -t/--trace[=file]: save the stopped trace to [file|timerlat_trace.txt]", + " -t/--trace[file]: save the stopped trace to [file|timerlat_trace.txt]", " -e/--event <sys:event>: enable the <sys:event> in the trace instance, multiple -e are allowed", " --filter <filter>: enable a trace event filter to the previous -e event", " --trigger <trigger>: enable a trace event trigger to the previous -e event", @@ -885,9 +885,13 @@ static struct timerlat_hist_params params->stop_total_us = get_llong_from_str(optarg); break; case 't': - if (optarg) - /* skip = */ - params->trace_output = &optarg[1]; + if (optarg) { + if (optarg[0] == '=') + params->trace_output = &optarg[1]; + else + params->trace_output = &optarg[0]; + } else if (optind < argc && argv[optind][0] != '-') + params->trace_output = argv[optind]; else params->trace_output = "timerlat_trace.txt"; break; |