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-rw-r--r--lib/dynamic_debug.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index c983049e986d..c72bb4d2eb7e 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -181,9 +181,16 @@ static int ddebug_change(const struct ddebug_query *query,
continue;
/* match against the format */
- if (query->format &&
- !strstr(dp->format, query->format))
- continue;
+ if (query->format) {
+ if (*query->format == '^') {
+ char *p;
+ /* anchored search. match must be at beginning */
+ p = strstr(dp->format, query->format+1);
+ if (p != dp->format)
+ continue;
+ } else if (!strstr(dp->format, query->format))
+ continue;
+ }
/* match against the line number range */
if (query->first_lineno &&