Updated function key mapping because of possible changes to NOTIFY.

The TTY driver now only notifies the IS server about function key event,
but does not tell which keys are pressed. The IS servers queries the TTY
driver to find out about this.

kernel/ipc.h

@@ -12,15 +12,6 @@
 #define SENDREC	 	 3  	/* function code for SEND + RECEIVE */
 #define NOTIFY		 4	/* function code for notifications */
 
-#if 0
-/* Bit map operations to manipulate bits of a simple mask variable. */
-#define set_bit(mask, n)	((mask) |= (1 << (n)))
-#define clear_bit(mask, n)	((mask) &= ~(1 << (n)))
-#define isset_bit(mask, n)	((mask) & (1 << (n)))
-#define empty_mask		(0)
-#define filled_mask		(~0)
-#endif
-
 /* Call masks indicating which system calls a process can make. */
 #define EMPTY_CALL_MASK 	(0)
 #define USER_CALL_MASK	 	(1 << SENDREC)

kernel/system.h

@@ -54,11 +54,7 @@ _PROTOTYPE( int do_setalarm, (message *m_ptr) );
 #define         do_signalrm 	do_setalarm
 #define         do_syncalrm 	do_setalarm
 
-#if ENABLE_K_TRACING
 _PROTOTYPE( int do_trace, (message *m_ptr) );		/* process tracing */
-#else
-#define do_trace do_unused
-#endif
 
 
 #endif	/* SYSTEM_H */

kernel/system/tracing.c

@@ -12,7 +12,6 @@
 #include "../system.h"
 #include <sys/ptrace.h>
 
-#if ENABLE_K_TRACING		/* only include code if tracing is enabled */
 
 /*==========================================================================*
  *				do_trace				    *
@@ -139,4 +138,3 @@ register message *m_ptr;
   return(OK);
 }
 
-#endif	/* ENABLE_K_TRACING */