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-rw-r--r--nptl_db/thread_db.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/nptl_db/thread_db.h b/nptl_db/thread_db.h
index acb0607662..ee7179c6dc 100644
--- a/nptl_db/thread_db.h
+++ b/nptl_db/thread_db.h
@@ -275,7 +275,7 @@ typedef struct td_thrinfo
   intptr_t ti_sp;			/* Unused.  */
   short int ti_flags;			/* Unused.  */
   int ti_pri;				/* Thread priority.  */
-  lwpid_t ti_lid;			/* Unused.  */
+  lwpid_t ti_lid;			/* Kernel PID for this thread.  */
   sigset_t ti_sigmask;			/* Signal mask.  */
   unsigned char ti_traceme;		/* Nonzero if event reporting
 					   enabled.  */