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-rw-r--r--src/kservice.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/kservice.c b/src/kservice.c
index 25d7f2e7e0..e61bae296a 100644
--- a/src/kservice.c
+++ b/src/kservice.c
@@ -461,6 +461,7 @@ rt_weak rt_err_t rt_backtrace_formatted_print(rt_ubase_t *buffer, long buflen)
/**
* @brief Print backtrace from frame to the given buffer
*
+ * @param thread the thread which frame belongs to
* @param frame where backtrace starts from. NULL if it's the current one
* @param skip the number of frames to discarded counted from calling function.
* Noted that the inner most frame is always discarded and not counted,