Subversion Repositories planix.SVN

#!/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"

Method  method[]={
---

#
#  configure all remote methods, i.e. all methods in the 'boot' section
#
#  EXAMPLE
#       boot
#               incon
#               9600
#               19200
#
../port/mkextract boot 0 $* | awk '{
        printf "        { \""  "" $1 "\", "\
        "config" $1 ", "\
        "connect" $1 ", "
        print fieldn(2) " },"
        }

        func fieldn(n,  s,i)
        {
                s = $0
                while (n > 1) {
                        sub(/^[ \t]*/, "", s)
                        if (substr(s, 1, 1) == "\"") {
                                sub(/^"[^\"]*"/, "", s)
                        } else {
                                sub(/^[^ \t]*/, "", s)
                        }
                        n--
                }
                sub(/^[ \t]*/, "", s)
                if (substr(s, 1, 1) == "\"") {
                        i = index(substr(s, 2), "\"")
                        if (i > 0)
                                return substr(s, 1, i+1)
                        else
                                return s
                } else {
                        sub(/[ \t].*/, "", s)
                        return s
                }
        }'

cat <<'---'
        { 0 },
};
---

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;"
                                }
        '