linux-kernel - Re: [PATCH v2 2/4] perf tools: Prompt error message for wrong terms of hw/sw events

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Date:	Sun, 27 Sep 2015 22:28:33 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	He Kuang <hekuang@...wei.com>
Cc:	a.p.zijlstra@...llo.nl, mingo@...hat.com, acme@...nel.org,
	jolsa@...nel.org, kan.liang@...el.com, adrian.hunter@...el.com,
	wangnan0@...wei.com, pi3orama@....com, linux-kernel@...r.kernel.org
Subject: Re: [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

> +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);
> +	} else {
> +		if (!asprintf(&str, "valid terms: %s", static_terms))
> +			goto fail;
> +	}
> +	return str;
> +
> +fail:
> +	return NULL;
> +}

also please change the comment in the flex file

thanks,
jirka


---
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 936d566f48d8..c29832bce496 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -174,7 +174,7 @@ modifier_bp	[rwx]{1,3}
 
 <config>{
 	/*
-	 * Please update formats_error_string any time
+	 * Please update parse_events_formats_error_string any time
 	 * new static term is added.
 	 */
 config			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
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