1 files changed, 36 insertions, 0 deletions

diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index 32170590892d..29c7b2cb2521 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -314,6 +314,42 @@ int strtailcmp(const char *s1, const char *s2)
 }
 
 /**
+ * strxfrchar - Locate and replace character in @s
+ * @s:    The string to be searched/changed.
+ * @from: Source character to be replaced.
+ * @to:   Destination character.
+ *
+ * Return pointer to the changed string.
+ */
+char *strxfrchar(char *s, char from, char to)
+{
+        char *p = s;
+
+        while ((p = strchr(p, from)) != NULL)
+                *p++ = to;
+
+        return s;
+}
+
+/**
+ * ltrim - Removes leading whitespace from @s.
+ * @s: The string to be stripped.
+ *
+ * Return pointer to the first non-whitespace character in @s.
+ */
+char *ltrim(char *s)
+{
+        int len = strlen(s);
+
+        while (len && isspace(*s)) {
+                len--;
+                s++;
+        }
+
+        return s;
+}
+
+/**
  * rtrim - Removes trailing whitespace from @s.
  * @s: The string to be stripped.
  *