wok-tiny annotate memtest/stuff/pack @ rev 169

memtest,plop: tune lzma compression
author Pascal Bellard <pascal.bellard@slitaz.org>
date Thu May 06 12:57:42 2021 +0000 (2021-05-06)
parents a88405d94c1e
children 7a5d5860f3ea
rev   line source
pascal@168 1 #!/bin/sh
pascal@168 2 if [ "$1" == "--build" ]; then
pascal@168 3 set -- ${2:-bootloader.bin} ${3:-unpack.bin}
pascal@168 4 x=$(grep -s packed_syssize$ ${2/.bin/.lst}|sed '$!d;s/.*t:\([^ ]*\).*/\1/')
pascal@168 5 [ -n "$x" ] && sed -i "s/XXXP/$((513+0x$x))/" $0 || sed -i "/XXXP$/d" $0
pascal@168 6 x=$(grep -s setup_byte$ ${2/.bin/.lst}|sed '$!d;s/.*t:\([^ ]*\).*/\1/')
pascal@168 7 [ -n "$x" ] && sed -i "s/XXXSB/$((513+0x$x))/" $0 || sed -i "/XXXSB/d" $0
pascal@168 8 x=$(grep -s setup_word$ ${2/.bin/.lst}|sed '$!d;s/.*t:\([^ ]*\).*/\1/')
pascal@168 9 [ -n "$x" ] && sed -i "s/XXXSW/$((514+0x$x))/" $0 || sed -i "/XXXSW/d" $0
pascal@168 10 x=$(grep -s setup_para$ ${2/.bin/.lst}|sed '$!d;s/.*t:\([^ ]*\).*/\1/')
pascal@168 11 [ -n "$x" ] && sed -i "s/XXXSP/$((514+0x$x))/" $0 || sed -i "/XXXSP/d" $0
pascal@168 12 x=$(grep -s setup_seg$ ${2/.bin/.lst}|sed '$!d;s/.*t:\([^ ]*\).*/\1/')
pascal@168 13 [ -n "$x" ] && sed -i "s/XXXSS/$((513+0x$x))/" $0 || sed -i "/XXXSS/d" $0
pascal@168 14 grep -q BFF401 ${2/.bin/.lst} && sed -i 's/512 skip/500 skip/;s/1000 -/&32 - /' $0
pascal@168 15 grep -q 83C60D ${2/.bin/.lst} && sed -i 's/ | dd bs=1 skip=13//' $0
pascal@168 16 helpmsg=$(grep -s helpmsg$ ${1/.bin/.lst}|sed '$!d;s/.*t:\([^ ]*\).*/\1/')
pascal@168 17 helpend=$(grep -s helpend$ ${1/.bin/.lst}|sed '$!d;s/.*t:\([^ ]*\).*/\1/')
pascal@168 18 if [ -n "$helpmsg" ]; then
pascal@168 19 sed -i "s/YYY/$((0x$helpmsg))/" $0
pascal@168 20 sed -i "s/ZZZ/$((0x$helpend-0x$helpmsg))/" $0
pascal@168 21 else
pascal@168 22 sed -i '/YYY/d' $0
pascal@168 23 fi
pascal@168 24 cat >> $0 <<EOM
pascal@168 25 $(dd if=$1 bs=512 count=1 conv=sync 2> /dev/null | cat - $2 | gzip -9 | uuencode -m -)
pascal@168 26 EOT
pascal@168 27 EOM
pascal@168 28 sed -i '/--build/,/^fi/d' $0
pascal@168 29 exit
pascal@168 30 fi
pascal@168 31
pascal@168 32 store()
pascal@168 33 {
pascal@168 34 n=$1
pascal@168 35 for i in $(seq 1 ${4:-2}); do
pascal@168 36 printf '\\\\x%02X' $(($n & 255))
pascal@168 37 n=$(($n >> 8))
pascal@168 38 done | xargs echo -en | dd conv=notrunc bs=1 of=$2 seek=$3
pascal@168 39 }
pascal@168 40
pascal@168 41 compress()
pascal@168 42 {
pascal@169 43 xz -z -e --format=raw --lzma1=mf=bt2,nice=132 --stdout
pascal@168 44 }
pascal@168 45
pascal@168 46 main()
pascal@168 47 {
pascal@168 48 uudecode | gunzip >$2
pascal@168 49 dd if=$1 bs=1 skip=497 seek=497 count=15 of=$2 conv=notrunc
pascal@168 50 setup="$(echo $(od -j 497 -N 1 -dAn $1))"
pascal@168 51 [ $setup -eq 0 ] && setup=4
pascal@168 52 store $setup $2 XXXSB 1
pascal@168 53 store $setup $2 XXXSW 1
pascal@168 54 store $((32 * $setup)) $2 XXXSP
pascal@168 55 store $((0x1000 - 32*$setup)) $2 XXXSS
pascal@168 56 dd if=$1 bs=512 skip=1 | compress >>$2
pascal@168 57 size=$(stat -c %s $2)
pascal@168 58 syssize=$((($size-512*($setup+1)+15)/16))
pascal@168 59 store $(($syssize + 0x1000)) $2 XXXP
pascal@168 60 store $syssize $2 500
pascal@168 61 store 4 $2 497 1
pascal@168 62 store $((($size+511)/512)) $2 4
pascal@168 63 store $((($size+15)/16)) $2 14
pascal@168 64 echo -e "$3" | dd conv=notrunc bs=1 seek=YYY of=$2 count=ZZZ
pascal@168 65 }
pascal@168 66
pascal@168 67 HELP="$(unix2dos <<EOT
pascal@168 68 Memtest86+ VERSION GPLv2
pascal@168 69 EOT
pascal@168 70 )"
pascal@168 71 main $1 ${2:-$1.packed} "${3:-$HELP}" 2>/dev/null <<EOT