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SubjectRe: [PATCH v2 2/4] perf tools: Prompt error message for wrong terms of hw/sw events
On Fri, Sep 25, 2015 at 11:11:49AM +0000, He Kuang wrote:

SNIP

> --- a/tools/perf/util/parse-events.c
> +++ b/tools/perf/util/parse-events.c
> @@ -656,6 +656,9 @@ do { \
> CHECK_TYPE_VAL(STR);
> break;
> default:
> + err->str = strdup("unknown term");
> + err->idx = term->err_term;
> + err->help = parse_events_formats_error_string(NULL);
> return -EINVAL;
> }
>
> @@ -1875,3 +1878,26 @@ void parse_events_evlist_error(struct parse_events_evlist *data,
> err->str = strdup(str);
> WARN_ONCE(!err->str, "WARNING: failed to allocate error string");
> }
> +
> +char *parse_events_formats_error_string(char *additional_terms)
> +{
> + char *str;
> + static const char *static_terms = "config,config1,config2,name,"
> + "period,freq,branch_type,time,"
> + "call-graph,stack-size\n";
> +
> + /* valid terms */
> + if (additional_terms) {
> + if (!asprintf(&str, "valid terms: %s,%s",
> + additional_terms, static_terms))
> + goto fail;
> + free(additional_terms);

not excited about freeing the additional_terms arg in here,
please state it in the comment above the function

thanks,
jirka

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