sys/arch/evbppc/compile/walnut-mkimg.sh

   1 #!/bin/sh
   2 # $NetBSD: walnut-mkimg.sh,v 1.1.8.3 2004/09/21 13:15:01 skrll Exp $
   3
   4 # Convert a kernel to an tftp image loadable by the IBM PowerPC OpenBIOS.
   5
   6 magic=5394511   # IBM OpenBIOS magic number 0x0052504f
   7
   8 if [ $# -ne 2 ] ; then
   9         echo usage: $0 kernel image 1>&2
  10         exit 1
  11 fi
  12
  13 kernel=$1; shift
  14 output=$1; shift
  15
  16 : ${OBJDUMP=objdump}
  17 : ${OBJCOPY=objcopy}
  18
  19 start=`${OBJDUMP} -f ${kernel} | awk '/start address/ { print $NF }'`
  20 start=`printf "%d" $start`
  21 ${OBJCOPY} -O binary ${kernel} ${kernel}.bin.$$
  22 size=`/bin/ls -l ${kernel}.bin.$$ | awk '{ printf "%d", ( $5 + 511 ) / 512 }'`
  23
  24 printf "%d\n%d\n%d\n0\n%d\n0\n0\n0\n" $magic $start $size $start |
  25     awk '{
  26                 printf "%c", int($0 / 256 / 256 / 256) % 256;
  27                 printf "%c", int($0 / 256 / 256      ) % 256;
  28                 printf "%c", int($0 / 256            ) % 256;
  29                 printf "%c", int($0                  ) % 256;
  30         }
  31     ' > ${output}
  32
  33 cat ${kernel}.bin.$$ >> ${output}
  34
  35 rm -f ${kernel}.bin.$$
  36 exit