From 5c37a12152dcd7c9ea69865faa6b23c106931489 Mon Sep 17 00:00:00 2001
From: joerg <joerg@FreeBSD.org>
Date: Tue, 28 Oct 1997 07:21:04 +0000
Subject: Allow for a keyword in the "files" file named "mandatory".  The first
 candidate for this is "npx0", more are likely to follow.

Check for pseudo-devices that are being configured, but don't appear
in any "files" file.  The ``pseudo-device bpf 2'' already hit me too
often.
---
 usr.sbin/config/config.h     |  2 ++
 usr.sbin/config/mkheaders.c  | 12 +++++++++++-
 usr.sbin/config/mkmakefile.c | 23 ++++++++++++++++++-----
 3 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/usr.sbin/config/config.h b/usr.sbin/config/config.h
index 6c524f5..d72448d 100644
--- a/usr.sbin/config/config.h
+++ b/usr.sbin/config/config.h
@@ -91,6 +91,8 @@ struct file_list {
 #define	SWAPSPEC	6
 #define COMPDEVICE	7
 #define COMPSPEC	8
+#define DEVDONE		0x80000000
+#define TYPEMASK	0x7fffffff
 
 /*
  * Attributes (flags).
diff --git a/usr.sbin/config/mkheaders.c b/usr.sbin/config/mkheaders.c
index c035e90..2e836e2 100644
--- a/usr.sbin/config/mkheaders.c
+++ b/usr.sbin/config/mkheaders.c
@@ -36,7 +36,7 @@
 static char sccsid[] = "@(#)mkheaders.c	8.1 (Berkeley) 6/6/93";
 #endif
 static const char rcsid[] =
-	"$Id$";
+	"$Id: mkheaders.c,v 1.6 1997/09/15 06:37:09 charnier Exp $";
 #endif /* not lint */
 
 /*
@@ -59,10 +59,19 @@ void
 headers()
 {
 	register struct file_list *fl;
+	struct device *dp;
 
 	for (fl = ftab; fl != 0; fl = fl->f_next)
 		if (fl->f_needs != 0)
 			do_count(fl->f_needs, fl->f_needs, 1);
+	for (dp = dtab; dp != 0; dp = dp->d_next)
+		if ((dp->d_type & TYPEMASK) == PSEUDO_DEVICE) {
+			if (!(dp->d_type & DEVDONE))
+				printf("Warning: pseudo-device \"%s\" is unknown\n",
+				       dp->d_name);
+			else
+				dp->d_type &= TYPEMASK;
+		}
 }
 
 /*
@@ -87,6 +96,7 @@ do_count(dev, hname, search)
 			if (dp->d_type == PSEUDO_DEVICE) {
 				count =
 				    dp->d_slave != UNKNOWN ? dp->d_slave : 1;
+				dp->d_type |= DEVDONE;
 				break;
 			}
 			count++;
diff --git a/usr.sbin/config/mkmakefile.c b/usr.sbin/config/mkmakefile.c
index 852f86e..93674d2 100644
--- a/usr.sbin/config/mkmakefile.c
+++ b/usr.sbin/config/mkmakefile.c
@@ -36,7 +36,7 @@
 static char sccsid[] = "@(#)mkmakefile.c	8.1 (Berkeley) 6/6/93";
 #endif
 static const char rcsid[] =
-	"$Id: mkmakefile.c,v 1.22 1997/09/15 06:37:09 charnier Exp $";
+	"$Id: mkmakefile.c,v 1.23 1997/10/22 00:38:48 peter Exp $";
 #endif /* not lint */
 
 /*
@@ -285,7 +285,7 @@ read_files()
 	char *wd, *this, *needs, *special, *depends, *clean;
 	char fname[80];
 	int nreqs, first = 1, configdep, isdup, std, filetype,
-	    imp_rule, no_obj, before_depend;
+	    imp_rule, no_obj, before_depend, mandatory;
 
 	ftab = 0;
 	(void) snprintf(fname, sizeof fname, "../../conf/files");
@@ -299,7 +299,7 @@ openit:
 	}
 next:
 	/*
-	 * filename	[ standard | optional ] [ config-dependent ]
+	 * filename    [ standard | mandatory | optional ] [ config-dependent ]
 	 *	[ dev* | profiling-routine ] [ device-driver] [ no-obj ]
 	 *	[ compile-with "compile rule" [no-implicit-rule] ]
 	 *      [ dependency "dependency-list"] [ before-depend ]
@@ -354,15 +354,23 @@ next:
 	clean = 0;
 	configdep = 0;
 	needs = 0;
-	std = 0;
+	std = mandatory = 0;
 	imp_rule = 0;
 	no_obj = 0;
 	before_depend = 0;
 	filetype = NORMAL;
 	if (eq(wd, "standard"))
 		std = 1;
+	/*
+	 * If an entry is marked "mandatory", config will abort if it's
+	 * not called by a configuration line in the config file.  Apart
+	 * from this, the device is handled like one marked "optional".
+	 */
+	else if (eq(wd, "mandatory"))
+		mandatory = 1;
 	else if (!eq(wd, "optional")) {
-		printf("%s: %s must be optional or standard\n", fname, this);
+		printf("%s: %s must be optional, mandatory or standard\n",
+		       fname, this);
 		exit(1);
 	}
 nextparam:
@@ -440,6 +448,11 @@ nextparam:
 				dp->d_slave = 1;
 			goto nextparam;
 		}
+	if (mandatory) {
+		printf("%s: mandatory device \"%s\" not found\n",
+		       fname, wd);
+		exit(1);
+	}
 	if (std) {
 		dp = (struct device *) malloc(sizeof *dp);
 		bzero(dp, sizeof *dp);
-- 
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