Initial revision
diff --git a/tools/gdb/error.h b/tools/gdb/error.h
new file mode 100644
index 0000000..907709f
--- /dev/null
+++ b/tools/gdb/error.h
@@ -0,0 +1,7 @@
+#include <stdarg.h>
+
+extern char *pname;
+
+extern void Warning(char *, ...);
+extern void Error(char *, ...);
+extern void Perror(char *, ...);