3 files changed, 6 insertions, 0 deletions
diff --git a/src/core/gdbserial.c b/src/core/gdbserial.c
index d372da964..ed217add0 100644
--- a/src/core/gdbserial.c
+++ b/src/core/gdbserial.c
@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <assert.h>
 #include <ipxe/serial.h>
 #include <ipxe/gdbstub.h>
diff --git a/src/core/gdbstub.c b/src/core/gdbstub.c
index 2cae29fec..34e6a0373 100644
--- a/src/core/gdbstub.c
+++ b/src/core/gdbstub.c
@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 /**
  * @file
  *
diff --git a/src/core/gdbudp.c b/src/core/gdbudp.c
index 287ec6305..9cb6572b7 100644
--- a/src/core/gdbudp.c
+++ b/src/core/gdbudp.c
@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <stdio.h>
 #include <string.h>
 #include <byteswap.h>