scripts/ubinize-image.sh

   1 #!/bin/sh
   2
   3 . $TOPDIR/scripts/functions.sh
   4
   5 part=""
   6 ubootenv=""
   7 ubinize_param=""
   8 kernel=""
   9 rootfs=""
  10 outfile=""
  11 err=""
  12
  13 ubivol() {
  14         volid=$1
  15         name=$2
  16         image=$3
  17         autoresize=$4
  18         size="$5"
  19         echo "[$name]"
  20         echo "mode=ubi"
  21         echo "vol_id=$volid"
  22         echo "vol_type=dynamic"
  23         echo "vol_name=$name"
  24         if [ "$image" ]; then
  25                 echo "image=$image"
  26                 [ -n "$size" ] && echo "vol_size=${size}"
  27         else
  28                 echo "vol_size=1MiB"
  29         fi
  30         if [ "$autoresize" ]; then
  31                 echo "vol_flags=autoresize"
  32         fi
  33 }
  34
  35 ubilayout() {
  36         local vol_id=0
  37         local rootsize=
  38         local autoresize=
  39         local rootfs_type="$( get_fs_type "$2" )"
  40
  41         if [ "$1" = "ubootenv" ]; then
  42                 ubivol $vol_id ubootenv
  43                 vol_id=$(( $vol_id + 1 ))
  44                 ubivol $vol_id ubootenv2
  45                 vol_id=$(( $vol_id + 1 ))
  46         fi
  47         for part in $parts; do
  48                 name="${part%%=*}"
  49                 prev="$part"
  50                 part="${part#*=}"
  51                 [ "$prev" = "$part" ] && part=
  52
  53                 image="${part%%=*}"
  54                 prev="$part"
  55                 part="${part#*=}"
  56                 [ "$prev" = "$part" ] && part=
  57
  58                 size="$part"
  59
  60                 ubivol $vol_id "$name" "$image" "" "${size}MiB"
  61                 vol_id=$(( $vol_id + 1 ))
  62         done
  63         if [ "$3" ]; then
  64                 ubivol $vol_id kernel "$3"
  65                 vol_id=$(( $vol_id + 1 ))
  66         fi
  67
  68         case "$rootfs_type" in
  69         "ubifs")
  70                 autoresize=1
  71                 ;;
  72         "squashfs")
  73                 # squashfs uses 1k block size, ensure we do not
  74                 # violate that
  75                 rootsize="$( round_up "$( stat -c%s "$2" )" 1024 )"
  76                 ;;
  77         esac
  78         ubivol $vol_id rootfs "$2" "$autoresize" "$rootsize"
  79
  80         vol_id=$(( $vol_id + 1 ))
  81         [ "$rootfs_type" = "ubifs" ] || ubivol $vol_id rootfs_data "" 1
  82 }
  83
  84 while [ "$1" ]; do
  85         case "$1" in
  86         "--uboot-env")
  87                 ubootenv="ubootenv"
  88                 shift
  89                 continue
  90                 ;;
  91         "--kernel")
  92                 kernel="$2"
  93                 shift
  94                 shift
  95                 continue
  96                 ;;
  97         "--part")
  98                 parts="$parts $2"
  99                 shift
 100                 shift
 101                 continue
 102                 ;;
 103         "-"*)
 104                 ubinize_param="$@"
 105                 break
 106                 ;;
 107         *)
 108                 if [ ! "$rootfs" ]; then
 109                         rootfs=$1
 110                         shift
 111                         continue
 112                 fi
 113                 if [ ! "$outfile" ]; then
 114                         outfile=$1
 115                         shift
 116                         continue
 117                 fi
 118                 ;;
 119         esac
 120 done
 121
 122 if [ ! -r "$rootfs" -o ! -r "$kernel" -a ! "$outfile" ]; then
 123         echo "syntax: $0 [--uboot-env] [--part <name>=<file>] [--kernel kernelimage] rootfs out [ubinize opts]"
 124         exit 1
 125 fi
 126
 127 ubinize="$( which ubinize )"
 128 if [ ! -x "$ubinize" ]; then
 129         echo "ubinize tool not found or not usable"
 130         exit 1
 131 fi
 132
 133 ubinizecfg="$( mktemp 2> /dev/null )"
 134 if [ -z "$ubinizecfg" ]; then
 135         # try OSX signature
 136         ubinizecfg="$( mktemp -t 'ubitmp' )"
 137 fi
 138 ubilayout "$ubootenv" "$rootfs" "$kernel" > "$ubinizecfg"
 139
 140 cat "$ubinizecfg"
 141 ubinize -o "$outfile" $ubinize_param "$ubinizecfg"
 142 err="$?"
 143 [ ! -e "$outfile" ] && err=2
 144 rm "$ubinizecfg"
 145
 146 exit $err