On Thu, 15 Apr 2021 11:03:16 +0300
"Tzvetomir Stoyanov (VMware)" <tz.stoyanov@xxxxxxxxx> wrote:
> Suppress all warnings from libtraceevent, libtracefs and libtracecmd if
> the trace-cmd application does not run in debug mode.
Actually, don't we have a -q option to turn off warnings from trace-cmd?
>From the man page:
-q
Quiet non critical warnings.
Which I see, currently doesn't work, but should. Not being able to parse
events is something we should keep displaying by default, but it should
not be displayed if -q is on the command line.
-- Steve
>
> Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@xxxxxxxxx>
> ---
> tracecmd/trace-cmd.c | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/tracecmd/trace-cmd.c b/tracecmd/trace-cmd.c
> index 7376c5a5..7de0671e 100644
> --- a/tracecmd/trace-cmd.c
> +++ b/tracecmd/trace-cmd.c
> @@ -35,6 +35,23 @@ void warning(const char *fmt, ...)
> fprintf(stderr, "\n");
> }
>
> +int tep_vwarning(const char *name, const char *fmt, va_list ap)
> +{
> + int ret = errno;
> +
> + if (!tracecmd_get_debug())
> + return ret;
> +
> + if (errno)
> + perror(name);
> +
> + fprintf(stderr, " ");
> + vfprintf(stderr, fmt, ap);
> + fprintf(stderr, "\n");
> +
> + return ret;
> +}
> +
> void pr_stat(const char *fmt, ...)
> {
> va_list ap;
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