boot(8): simplify

sys/src/9/boot/boot.c

@@ -35,7 +35,6 @@ boot(int argc, char *argv[])
 
 	readfile("#e/cputype", cputype, sizeof(cputype));
 	setenv("bootdisk", bootdisk, 0);
-	setenv("cpuflag", cpuflag ? "1" : "0", 0);
 
 	/* setup the boot namespace */
 	bind("/boot", "/bin", MAFTER);

sys/src/9/boot/boot.h

@@ -3,13 +3,9 @@ enum {
 };
 
 extern char*	bootdisk;
-extern char*	rootdir;
-extern int		(*cfs)(int);
-extern int		cpuflag;
 
 extern void fatal(char*);
 extern int	readfile(char*, char*, int);
 extern void run(char*, ...);
 extern void	setenv(char*, char*, int);
 extern int	writefile(char*, char*, int);
-extern void	boot(int, char **);

sys/src/9/boot/bootrc

@@ -8,9 +8,9 @@ bind -q '#p' /proc
 for(i in S f k æ t)
 	bind -a '#'^$i /dev >/dev/null >[2=1]
 
-for(i in init sysname user nvram rootdir cfs bootdisk bootargs \
-	nobootprompt debugfactotum \
-	fs fsaddr auth authaddr){
+# make variables settable by copying them from #ec
+for(i in init service sysname user nvram rootdir cfs bootdisk bootargs \
+	nobootprompt debugfactotum fs fsaddr auth authaddr){
 	a=$$i
 	$i=()
 	rm -f '#e'/$i '#ec'/$i /env/$i
@@ -75,7 +75,7 @@ fn main{
 	# authentication agent
 	if(! test -f /srv/factotum){
 		x=(/boot/factotum -sfactotum)
-		if(~ $cpuflag 1){
+		if(~ $service cpu){
 			x=($x -S)
 			if(~ -k $ff)
 				x=($x -k)
@@ -118,7 +118,7 @@ fn main{
 	# compile init command
 	if(~ $#init 0){
 		init=/$cputype/init
-		if(~ $cpuflag 1)
+		if(~ $service cpu)
 			init=($init -c)
 		if not
 			init=($init -t)
@@ -160,15 +160,24 @@ if(test -e '#u' && test -x /bin/usb/usbd){
 # bind in an ip interface
 for(i in I l^(0 1 2 3))
 	bind -qa '#'$i /net
-
-configlocal	# add partitions and binds
+# add partitions and binds
+configlocal
 
 # boot(8) command line arguments
 ff=()
 aa=()
 while(! ~ $#* 0){
 	if(~ $1 -*){
-		if(! ~ $1 -u*){
+		if(~ $1 -u*){
+			if(~ $1 -u){
+				user=$2
+				shift
+			}
+			if not {
+				user=`{echo $1 | sed 's,^-u,,g'}
+			}
+		}
+		if not {
 			if(~ $1 -*f*)
 				ff=($ff -f)
 			if(~ $1 -*k*)

sys/src/9/boot/mkboot

@@ -15,21 +15,14 @@ cat <<'---'
 ---
 
 awk '
-	BEGIN	{ cpuflag = 0; bootprog = "boot"; bootdisk = "#S/sdC0/"; rootdir = "/root"; }
+	BEGIN	{ bootprog = "boot"; bootdisk = "/dev/sdC0/"; }
 	$0 ~ "^boot" && $2=="cpu"\
-		{ cpuflag = 1
-		  if(NF == 4 && $3 == "boot")
+		{ if(NF == 4 && $3 == "boot")
 			bootdisk = $4
 		}
-	$0 ~ "^boot" && $2=="rootdir" && NF==3\
-		{ rootdir = $3 }
-	$0 ~ "^boot" && ($2=="bboot" || $2=="romboot" || $2=="dosboot")\
-		{ cpuflag = 1;  bootprog = $2; }
 	$0 ~ "^boot" && $2=="boot" && NF==3\
 		{ bootdisk = $3 }
-	END 	{ print "int cpuflag = " cpuflag ";"
-		  print "char* rootdir = \"" rootdir "\";"
-		  print "char* bootdisk = \"" bootdisk "\";"
+	END 	{ print "char* bootdisk = \"" bootdisk "\";"
 		  print "extern void " bootprog "(int, char**);"
 		  print "void"
 		  print "main(int argc, char **argv)"
@@ -38,17 +31,3 @@ awk '
 		  print "}"
 		}
 ' $1
-
-#
-#  configure in a cache file system if a 
-# /386/bin/root appears in the bootdir section.
-#
-../port/mkextract bootdir 0 $* | awk '
-	BEGIN			{ cfs = 0 }
-	$1 ~ "bin/cfs$"	{ cfs = 1 }
-	END			{ if(cfs)
-					print "int (*cfs)(int) = cache;"
-				  else
-					print "int (*cfs)(int) = 0;"
-				}
-	'