On Wed, 24 Mar 2021 15:04:00 +0200
"Tzvetomir Stoyanov (VMware)" <tz.stoyanov@xxxxxxxxx> wrote:
> diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
> index 635897e1..5f7f5b3d 100644
> --- a/tracecmd/trace-record.c
> +++ b/tracecmd/trace-record.c
> @@ -5683,6 +5683,33 @@ check_instance_die(struct buffer_instance *instance, char *param)
> tracefs_instance_get_name(instance->tracefs), param);
> }
>
> +static bool clock_is_supported(struct tracefs_instance *instance, char *clock)
> +{
> + char *all_clocks = NULL;
> + char *ret = NULL;
> +
> + all_clocks = tracefs_instance_file_read(instance, "trace_clock", NULL);
> + if (!all_clocks)
> + return false;
> +
> + ret = strstr(all_clocks, clock);
> + if (ret && (ret == all_clocks || ret[-1] == ' ' || ret[-1] == '[')) {
> + switch (ret[strlen(clock)]) {
> + case ' ':
> + case '\0':
Testing this, I found we also need:
case '\n':
-- Steve
> + case ']':
> + break;
> + default:
> + ret = NULL;
> + }
> + } else {
> + ret = NULL;
> + }
> + free(all_clocks);
> +
> + return ret != NULL;
> +}
> +
> static void parse_record_options(int argc,
> char **argv,
> enum trace_cmd curr_cmd,
> --
|