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-rw-r--r--ddb/db_output.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/ddb/db_output.h b/ddb/db_output.h
index 1159c6b..e7a4ba3 100644
--- a/ddb/db_output.h
+++ b/ddb/db_output.h
@@ -32,9 +32,14 @@
* Printing routines for kernel debugger.
*/
+#ifndef _DDB_DB_OUTPUT_H_
+#define _DDB_DB_OUTPUT_H_
+
extern void db_force_whitespace(void);
extern int db_print_position(void);
extern void db_end_line(void);
extern void db_printf(const char *fmt, ...);
extern void db_putchar(int c);
extern void kdbprintf(const char *fmt, ...);
+
+#endif /* _DDB_DB_OUTPUT_H_ */