ref: 689979c18ae35626dacc989f58016d2db09093f6
dir: /sys/src/9/boot/mkboot/
#!/bin/rc
#
# this file configures a boot program (/boot) for a kernel.
#
if(! ~ $#* 1){
echo usage: mkboot file >[1=2]
exit 1
}
cat <<'---'
#include <u.h>
#include <libc.h>
#include "../boot/boot.h"
---
awk '
BEGIN { cpuflag = 0; bootprog = "boot"; bootdisk = "#S/sdC0/"; rootdir = "/root"; }
$0 ~ "^boot" && $2=="cpu"\
{ cpuflag = 1
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 "\";"
print "extern void " bootprog "(int, char**);"
print "void"
print "main(int argc, char **argv)"
print "{"
print "\t" bootprog "(argc, argv);"
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;"
}
'