Make this bugger actually compile and work again:

o a couple of header files have been missing

o convert the LKM Makefile to use <bsd.kmod.mk>

o rename the module to ``misc_mod'' (as opposed to ``miscmod''), so
  the module name can be made identical to the module's file name,
  avoiding the clash with one of the component's .o file names

o modstat(1/8) has been moved meanwhile

share/examples/lkm/misc/module/Makefile

@@ -34,32 +34,16 @@
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
+# $Id$
+#
+BINDIR=	/tmp
+SRCS=	misccall.c miscmod.c
+KMOD=	misc_mod
+NOMAN=	none
 
-SRCS=miscmod.c
-OBJS=$(SRCS:.c=.o)
-
-KSRCS=misccall.c
-KOBJS=misccall.o
-
-MODOBJ=combined.o
-
-KMOD=miscmod
-CFLAGS= -DKERNEL -I/sys/sys -I/sys
-
-all:	$(MODOBJ)
-
-clean:
-	rm -f $(OBJS) $(KOBJS) $(MODOBJ) $(KMOD)
-
-load:
-	/sbin/modload -o $(KMOD) -e$(KMOD) $(MODOBJ)
-
-unload:
-	/sbin/modunload -n $(KMOD)
-
-$(MODOBJ): $(OBJS) $(KOBJS)
-	$(LD) -r -o $(MODOBJ) $(OBJS) $(KOBJS)
+CLEANFILES+= ${KMOD}
 
+.include <bsd.kmod.mk>
 #
 # EOF -- This file has not been truncated
 #

share/examples/lkm/misc/module/misccall.c

@@ -37,6 +37,7 @@
  */
 #include <sys/param.h>
 #include <sys/ioctl.h>
+#include <sys/proc.h>
 #include <sys/systm.h>
 
 

share/examples/lkm/misc/module/miscmod.c

@@ -1,6 +1,6 @@
 /* 25 May 93*/
 /*
- * Makefile for miscmod
+ * miscmod.c
  *
  * 05 Jun 93	Terry Lambert		Split mycall.c out
  * 25 May 93	Terry Lambert		Original
@@ -38,10 +38,12 @@
  */
 #include <sys/param.h>
 #include <sys/ioctl.h>
+#include <sys/proc.h>
 #include <sys/systm.h>
 #include <sys/conf.h>
 #include <sys/mount.h>
 #include <sys/exec.h>
+#include <sys/sysent.h>
 #include <sys/lkm.h>
 #include <a.out.h>
 #include <sys/file.h>
@@ -63,7 +65,12 @@ static struct sysent newent = {
  */
 static struct sysent	oldent;		/* save are for old callslot entry*/
 
-MOD_MISC( "miscmod")
+/*
+ * Number of syscall entries for a.out executables
+ */
+#define nsysent (aout_sysvec.sv_size)
+
+MOD_MISC( "misc_mod")
 
 
 /*
@@ -90,7 +97,6 @@ int			cmd;
 	int			i;
 	struct lkm_misc		*args = lkmtp->private.lkm_misc;
 	int			err = 0;	/* default = success*/
-	extern int		nsysent;	/* init_sysent.c*/
 	extern int		lkmnosys();	/* allocable slot*/
 
 	switch( cmd) {
@@ -175,7 +181,7 @@ int			cmd;
  * The entry point should return 0 unless it is refusing load (in which
  * case it should return an errno from errno.h).
  */
-miscmod( lkmtp, cmd, ver)
+misc_mod( lkmtp, cmd, ver)
 struct lkm_table	*lkmtp;
 int			cmd;
 int			ver;

share/examples/lkm/misc/test/Makefile

@@ -34,10 +34,13 @@
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
-
+# $Id$
+#
 PROG=	testmisc
 NOMAN=
 
+MODSTAT= /usr/bin/modstat
+
 load:
 	@echo "This test program will call the sample system call;"
 	@echo "the "offset requested will be shown as 'Off' in the"
@@ -48,7 +51,7 @@ load:
 	@echo "system console each time it is run."
 	@echo
 	@echo
-	/sbin/modstat -n miscmod
+	${MODSTAT} -n misc_mod
 	@echo
 	@./testmisc
 
@@ -57,7 +60,7 @@ unload:
 	@echo "has been successfully unloaded by building 'unload' in"
 	@echo "the 'module' subdirectory."
 	@echo
-	/sbin/modstat -n miscmod
+	${MODSTAT} -n misc_mod
 
 .include <bsd.prog.mk>
 

share/examples/lkm/misc/test/testmisc.c

@@ -46,12 +46,13 @@ main()
 	int	err = 0;
 
 	printf( "Table offset as reported by modstat: ");
-	if( gets( buf) == NULL) {
+	fflush( stdout);
+	if( fgets( buf, 80, stdin) == NULL) {
 		printf( "[ABORT]\n");
 		exit( 1);
 	}
 
-	if( err = syscall( atoi( buf) /* no arguments*/))
+	if(( err = syscall( atoi( buf) /* no arguments*/)))
 		perror( "syscall");
 
 	exit( err);