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Merge from uebayasi-xip:

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Support files other than kernel executables.

For filesystem images, embed (not prepend) OpenBIOS image headers to
the images, so that alignment is kept in the resulting files.
This commit is contained in:
uebayasi 2010-11-06 16:23:35 +00:00
parent 4cca618331
commit 739828825a
1 changed files with 58 additions and 18 deletions
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76
sys/arch/evbppc/compile/walnut-mkimg.sh
View File

@ -1,36 +1,76 @@
#!/bin/sh
# $NetBSD: walnut-mkimg.sh,v 1.3 2005/12/11 12:17:11 christos Exp $
# $NetBSD: walnut-mkimg.sh,v 1.4 2010/11/06 16:23:35 uebayasi Exp $
# Convert a kernel to an tftp image loadable by the IBM PowerPC OpenBIOS.
# Convert an input to a TFTP image loadable by the IBM PowerPC OpenBIOS.
magic=5394511 # IBM OpenBIOS magic number 0x0052504f
start=0
size=0
overwrite=0
if [ $# -ne 2 ] ; then
echo usage: $0 kernel image 1>&2
echo usage: $0 input image 1>&2
exit 1
fi
kernel=$1; shift
input=$1; shift
output=$1; shift
: ${OBJDUMP=objdump}
: ${OBJCOPY=objcopy}
start=`${OBJDUMP} -f ${kernel} | awk '/start address/ { print $NF }'`
start=`printf "%d" $start`
${OBJCOPY} -O binary ${kernel} ${kernel}.bin.$$
size=`/bin/ls -l ${kernel}.bin.$$ | awk '{ printf "%d", ( $5 + 511 ) / 512 }'`
file=$( file $input )
case $file in
*:\ ELF\ *)
start=`${OBJDUMP} -f ${input} | awk '/start address/ { print $NF }'`
start=`printf "%d" $start`
${OBJCOPY} -O binary ${input} ${input}.bin.$$
;;
*)
case $file in
*\ [Ff]ile\ [Ss]ystem*|*\ [Ff]ilesystem*)
overwrite=1
;;
esac
cp ${input} ${input}.bin.$$
;;
esac
printf "%d\n%d\n%d\n0\n%d\n0\n0\n0\n" $magic $start $size $start |
awk '{
printf "%c", int($0 / 256 / 256 / 256) % 256;
printf "%c", int($0 / 256 / 256 ) % 256;
printf "%c", int($0 / 256 ) % 256;
printf "%c", int($0 ) % 256;
}
' > ${output}
size=`stat -f '%z' ${input}.bin.$$`
size=$(( ( $size + 511 ) / 512 ))
cat ${kernel}.bin.$$ >> ${output}
enc()
{
local _x=$1; shift
printf $( printf '\\x%x' $_x )
}
rm -f ${kernel}.bin.$$
be32enc()
{
local _x=$1; shift
enc $(( ( $_x >> 24 ) & 0xff ))
enc $(( ( $_x >> 16 ) & 0xff ))
enc $(( ( $_x >> 8 ) & 0xff ))
enc $(( ( $_x >> 0 ) & 0xff ))
}
{
be32enc $magic
be32enc $start
be32enc $size
be32enc 0
be32enc $start
be32enc 0
be32enc 0
be32enc 0
} > ${input}.hdr.$$
if [ $overwrite = 0 ]; then
cat ${input}.hdr.$$ ${input}.bin.$$ > ${output}
else
cp ${input}.bin.$$ ${output}
dd if=${input}.hdr.$$ of=${output} conv=notrunc
fi
rm -f ${input}.hdr.$$ ${input}.bin.$$
exit