Thread (15 messages) flat view 15 messages, 2 authors, 2020-03-27

Re: [PATCH v6 09/11] perf/tools: Enhance JSON/metric infrastructure to handle "?"

From: Jiri Olsa <hidden>
Date: 2020-03-24 13:11:43
Also in: linux-perf-users, lkml

On Fri, Mar 20, 2020 at 06:24:04PM +0530, Kajol Jain wrote:

SNIP
quoted hunk ↗ jump to hunk
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 52fb119d25c8..b4b91d8ad5be 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -474,8 +474,13 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
 	return false;
 }
 
+int __weak arch_get_runtimeparam(void)
+{
+	return 1;
+}
+
 static int metricgroup__add_metric_param(struct strbuf *events,
-			struct list_head *group_list, struct pmu_event *pe)
+		struct list_head *group_list, struct pmu_event *pe, int param)
 {
 
 	const char **ids;
@@ -483,7 +488,7 @@ static int metricgroup__add_metric_param(struct strbuf *events,
could you please call this function __metricgroup__add_metric instead?
quoted hunk ↗ jump to hunk
 	struct egroup *eg;
 	int ret = -EINVAL;
 
-	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum) < 0)
+	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, param) < 0)
 		return ret;
 
 	if (events->len > 0)
@@ -502,11 +507,21 @@ static int metricgroup__add_metric_param(struct strbuf *events,
 
 	eg->ids = ids;
 	eg->idnum = idnum;
-	eg->metric_name = pe->metric_name;
+	if (strstr(pe->metric_expr, "?")) {
+		char value[PATH_MAX];
+
+		sprintf(value, "%s%c%d", pe->metric_name, '_', param);
+		eg->metric_name = strdup(value);
how is eg->metric_name getting released?
+		if (!eg->metric_name) {
+			ret = -ENOMEM;
+			return ret;
		return -ENOMEM; ??
+		}
+	}
+	else
+		eg->metric_name = pe->metric_name;
 	eg->metric_expr = pe->metric_expr;
 	eg->metric_unit = pe->unit;
 	list_add_tail(&eg->nd, group_list);
-
 	return 0;
 }
 
SNIP

thanks,
jirka
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