first usable version of kernel and commands

After an year of hard work, this is a first "usable" version of Jehanne.

sys/include/ptrace.h

@@ -0,0 +1,59 @@
+typedef enum PTevent {
+	SAdmit = 0,	/* Edf admit */
+	SRelease,	/* Edf release, waiting to be scheduled */
+	SEdf,		/* running under EDF */
+	SRun,		/* running best effort */
+
+	SReady,		/* runnable but not running  */
+	SSleep,		/* blocked; arg is PSstate| pc<<8  */
+	SYield,		/* blocked waiting for release */
+	SSlice,		/* slice exhausted */
+
+	SDeadline,	/* proc's deadline */
+	SExpel,		/* Edf expel */
+	SDead,		/* proc dies */
+	SInts,		/* Interrupt start */
+
+	SInte,		/* Interrupt end */
+	STrap,		/* fault */
+	SUser,		/* user event */
+	SName,		/* used to report names for pids */
+	Nevent,
+} Tevent;
+
+enum {
+	PTsize = 4 + 4 + 4 + 8 + 8,
+
+	/* STrap arg flags */
+	STrapRPF = 0x1000000000000000ULL,	/* page fault (read) STrap arg */
+	STrapWPF = 0x1000000000000000ULL,	/* page fault (write) STrap arg */
+	STrapSC  = 0x2000000000000000ULL,	/* sys call STrap arg */
+	STrapMask = 0x0FFFFFFFFFFFFFFFULL,	/* bits available in arg */
+
+	/* Sleep states; keep in sync with the kernel schedstate
+	 * BUG: generate automatically.
+	 */
+	PSDead = 0,		/* not used */
+	PSMoribund,		/* not used */
+	PSReady,		/* not used */
+	PSScheding,		/* not used */
+	PSRunning,		/* not used */
+	PSQueueing,
+	PSQueueingR,
+	PSQueueingW,
+	PSWakeme,
+	PSBroken,		/* not used */
+	PSStopped,		/* not used */
+	PSRendezvous,
+	PSWaitrelease,
+
+};
+
+typedef struct PTraceevent	PTraceevent;
+struct PTraceevent {
+	uint32_t	pid;	/* for the process */
+	uint32_t	etype;	/* Event type */
+	uint32_t	machno;	/* where the event happen */
+	int64_t		time;	/* time stamp  */
+	uint64_t	arg;	/* for this event type */
+};