2 files changed, 17 insertions, 0 deletions

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index b490354d1b23..cff1c316fa91 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -288,3 +288,18 @@ int sort_dimension__add(const char *tok)
 
         return -ESRCH;
 }
+
+void setup_sorting(const char * const usagestr[], const struct option *opts)
+{
+        char *tmp, *tok, *str = strdup(sort_order);
+
+        for (tok = strtok_r(str, ", ", &tmp);
+                        tok; tok = strtok_r(NULL, ", ", &tmp)) {
+                if (sort_dimension__add(tok) < 0) {
+                        error("Unknown --sort key: `%s'", tok);
+                        usage_with_options(usagestr, opts);
+                }
+        }
+
+        free(str);
+}
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 333e664ff45f..cb6151c026f2 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -81,6 +81,8 @@ struct sort_entry {
 extern struct sort_entry sort_thread;
 extern struct list_head hist_entry__sort_list;
 
+void setup_sorting(const char * const usagestr[], const struct option *opts);
+
 extern int repsep_fprintf(FILE *fp, const char *fmt, ...);
 extern size_t sort__thread_print(FILE *, struct hist_entry *, unsigned int);
 extern size_t sort__comm_print(FILE *, struct hist_entry *, unsigned int);