From: Bill Joy <bill@ucbvax.Berkeley.EDU>
Date: Tue, 13 Mar 1990 07:48:24 +0000 (-0800)
Subject: date and time created 90/03/12 15:48:24 by bill
X-Git-Tag: BSD-4_3_Reno-Snapshot-Development~4146
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/5996b4a56938c4b5bfc114afbf03f4a8d17e331e

date and time created 90/03/12 15:48:24 by bill

SCCS-vsn: sys/i386/i386/sys_machdep.c 1.1
---

diff --git a/usr/src/sys/i386/i386/sys_machdep.c b/usr/src/sys/i386/i386/sys_machdep.c
new file mode 100644
index 0000000000..6dce57c276
--- /dev/null
+++ b/usr/src/sys/i386/i386/sys_machdep.c
@@ -0,0 +1,132 @@
+/*	sys_machdep.c	1.1	86/01/05	*/
+
+#include "../h/param.h"
+#include "../h/systm.h"
+#include "../h/dir.h"
+#include "../h/user.h"
+#include "../h/ioctl.h"
+#include "../h/file.h"
+#include "../h/proc.h"
+#include "../h/uio.h"
+#include "../h/kernel.h"
+#include "../h/mtio.h"
+#include "../h/buf.h"
+
+#include "../machine/dkio.h"
+#include "../machine/pte.h"
+
+#ifdef TRACE
+int	nvualarm;
+
+vtrace()
+{
+	register struct a {
+		int	request;
+		int	value;
+	} *uap;
+	int vdoualarm();
+
+	uap = (struct a *)u.u_ap;
+	switch (uap->request) {
+
+	case VTR_DISABLE:		/* disable a trace point */
+	case VTR_ENABLE:		/* enable a trace point */
+		if (uap->value < 0 || uap->value >= TR_NFLAGS)
+			u.u_error = EINVAL;
+		else {
+			u.u_r.r_val1 = traceflags[uap->value];
+			traceflags[uap->value] = uap->request;
+		}
+		break;
+
+	case VTR_VALUE:		/* return a trace point setting */
+		if (uap->value < 0 || uap->value >= TR_NFLAGS)
+			u.u_error = EINVAL;
+		else
+			u.u_r.r_val1 = traceflags[uap->value];
+		break;
+
+	case VTR_UALARM:	/* set a real-time ualarm, less than 1 min */
+		if (uap->value <= 0 || uap->value > 60 * hz ||
+		    nvualarm > 5)
+			u.u_error = EINVAL;
+		else {
+			nvualarm++;
+			timeout(vdoualarm, (caddr_t)u.u_procp->p_pid,
+			    uap->value);
+		}
+		break;
+
+	case VTR_STAMP:
+		trace(TR_STAMP, uap->value, u.u_procp->p_pid);
+		break;
+	}
+}
+
+vdoualarm(arg)
+	int arg;
+{
+	register struct proc *p;
+
+	p = pfind(arg);
+	if (p)
+		psignal(p, 16);
+	nvualarm--;
+}
+#endif
+
+#ifdef COMPAT
+/*
+ * Note: these tables are sorted by
+ * ioctl "code" (in ascending order).
+ */
+int dctls[] = { DKIOCHDR, 0 };
+int fctls[] = { FIOCLEX, FIONCLEX, FIOASYNC, FIONBIO, FIONREAD, 0 };
+int mctls[] = { MTIOCTOP, MTIOCGET, 0 };
+int tctls[] = {
+	TIOCGETD, TIOCSETD, TIOCHPCL, TIOCMODG, TIOCMODS,
+	TIOCGETP, TIOCSETP, TIOCSETN, TIOCEXCL, TIOCNXCL,
+	TIOCFLUSH,TIOCSETC, TIOCGETC, TIOCREMOTE,TIOCMGET,
+	TIOCMBIC, TIOCMBIS, TIOCMSET, TIOCSTART,TIOCSTOP,
+	TIOCPKT,  TIOCNOTTY,TIOCSTI,  TIOCOUTQ, TIOCGLTC,
+	TIOCSLTC, TIOCSPGRP,TIOCGPGRP,TIOCCDTR, TIOCSDTR,
+	TIOCCBRK, TIOCSBRK, TIOCLGET, TIOCLSET, TIOCLBIC,
+	TIOCLBIS, 0
+};
+
+/*
+ * Map an old style ioctl command to new.
+ */
+mapioctl(cmd)
+	int cmd;
+{
+	register int *map, c;
+
+	switch ((cmd >> 8) & 0xff) {
+
+	case 'd':
+		map = dctls;
+		break;
+
+	case 'f':
+		map = fctls;
+		break;
+
+	case 'm':
+		map = mctls;
+		break;
+
+	case 't':
+		map = tctls;
+		break;
+
+	default:
+		return (0);
+	}
+	while ((c = *map) && (c&0xff) < (cmd&0xff))
+		map++;
+	if (c && (c&0xff) == (cmd&0xff))
+		return (c);
+	return (0);
+}
+#endif