9723 provide support for VMM's GDT handling
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>

@@ -19,19 +19,21 @@
 /*
  * Support routines for unix.
  */
 
 #include <sys/types.h>
+#include <sys/segments.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 extern ulong_t kmdb_unix_getcr0(void);
 extern ulong_t kmdb_unix_getcr2(void);
 extern ulong_t kmdb_unix_getcr3(void);
 extern ulong_t kmdb_unix_getcr4(void);
+extern void kmdb_unix_getgdtr(desctbr_t *);
 
 #ifdef __cplusplus
 }
 #endif