releasetools/arm_sdimage.sh

   1 #!/usr/bin/env bash
   2 set -e
   3
   4 #
   5 # This script creates a bootable image and should at some point in the future
   6 # be replaced by the proper NetBSD infrastructure.
   7 #
   8
   9 #
  10 # Source settings if present
  11 #
  12 : ${SETTINGS_MINIX=.settings}
  13 if [ -f "${SETTINGS_MINIX}"  ]
  14 then
  15         echo "Sourcing settings from ${SETTINGS_MINIX}"
  16         # Display the content (so we can check in the build logs
  17         # what the settings contain.
  18         cat ${SETTINGS_MINIX} | sed "s,^,CONTENT ,g"
  19         . ${SETTINGS_MINIX}
  20 fi
  21
  22 : ${ARCH=evbearm-el}
  23 : ${OBJ=../obj.${ARCH}}
  24 : ${TOOLCHAIN_TRIPLET=arm-elf32-minix-}
  25 : ${BUILDSH=build.sh}
  26
  27 : ${SETS="minix-base minix-comp minix-games minix-man minix-tests tests"}
  28 : ${IMG=minix_arm_sd.img}
  29
  30 # ARM definitions:
  31 : ${BUILDVARS=-V MKGCCCMDS=yes -V MKLLVM=no}
  32 # These BUILDVARS are for building with LLVM:
  33 #: ${BUILDVARS=-V MKLIBCXX=no -V MKKYUA=no -V MKATF=no -V MKLLVMCMDS=no}
  34 : ${FAT_SIZE=$((    10*(2**20) / 512))} # This is in sectors
  35
  36 # Beagleboard-xm
  37 : ${U_BOOT_BIN_DIR=build/omap3_beagle/}
  38 : ${CONSOLE=tty02}
  39
  40 # BeagleBone (and black)
  41 #: ${U_BOOT_BIN_DIR=build/am335x_evm/}
  42 #: ${CONSOLE=tty00}
  43
  44 #
  45 # We host u-boot binaries.
  46 #
  47 : ${MLO=MLO}
  48 : ${UBOOT=u-boot.img}
  49 U_BOOT_GIT_VERSION=cb5178f12787c690cb1c888d88733137e5a47b15
  50
  51 if [ ! -f ${BUILDSH} ]
  52 then
  53         echo "Please invoke me from the root source dir, where ${BUILDSH} is."
  54         exit 1
  55 fi
  56
  57 if [ -n "$BASE_URL" ]
  58 then
  59         #we no longer download u-boot but do a checkout
  60         #BASE_URL used to be the base url for u-boot
  61         #Downloads
  62         echo "Warning:** Setting BASE_URL (u-boot) is no longer possible use U_BOOT_BIN_DIR"
  63         echo "Look in ${RELEASETOOLSDIR}/arm_sdimage.sh for suggested values"
  64         exit 1
  65 fi
  66
  67 export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:${PATH}
  68
  69 # we create a disk image of about 2 gig's
  70 # for alignment reasons, prefer sizes which are multiples of 4096 bytes
  71 : ${IMG_SIZE=$((     2*(2**30) ))}
  72 : ${ROOT_SIZE=$((   64*(2**20) ))}
  73 : ${HOME_SIZE=$((  128*(2**20) ))}
  74 : ${USR_SIZE=$((  1792*(2**20) ))}
  75
  76 # set up disk creation environment
  77 . releasetools/image.defaults
  78 . releasetools/image.functions
  79
  80 # all sizes are written in 512 byte blocks
  81 ROOTSIZEARG="-b $((${ROOT_SIZE} / 512 / 8))"
  82 USRSIZEARG="-b $((${USR_SIZE} / 512 / 8))"
  83 HOMESIZEARG="-b $((${HOME_SIZE} / 512 / 8))"
  84
  85 # where the kernel & boot modules will be
  86 MODDIR=${DESTDIR}/boot/minix/.temp
  87
  88 echo "Building work directory..."
  89 build_workdir "$SETS"
  90
  91 echo "Adding extra files..."
  92
  93 # create a fstab entry in /etc
  94 cat >${ROOT_DIR}/etc/fstab <<END_FSTAB
  95 /dev/c0d0p2     /usr            mfs     rw                      0       2
  96 /dev/c0d0p3     /home           mfs     rw                      0       2
  97 none            /sys            devman  rw,rslabel=devman       0       0
  98 none            /dev/pts        ptyfs   rw,rslabel=ptyfs        0       0
  99 END_FSTAB
 100 add_file_spec "etc/fstab" extra.fstab
 101
 102 echo "Bundling packages..."
 103 bundle_packages "$BUNDLE_PACKAGES"
 104
 105 echo "Creating specification files..."
 106 create_input_spec
 107 create_protos "usr home"
 108
 109 # Download the stage 1 bootloader and u-boot
 110 #
 111 ${RELEASETOOLSDIR}/fetch_u-boot.sh -o ${RELEASETOOLSDIR}/u-boot -n $U_BOOT_GIT_VERSION
 112
 113 # Clean image
 114 if [ -f ${IMG} ]        # IMG might be a block device
 115 then
 116         rm -f ${IMG}
 117 fi
 118
 119 #
 120 # Create the empty image where we later will put the partitions in.
 121 # Make sure it is at least 2GB, otherwise the SD card will not be detected
 122 # correctly in qemu / HW.
 123 #
 124 dd if=/dev/zero of=${IMG} bs=512 count=1 seek=$((($IMG_SIZE / 512) -1))
 125
 126 #
 127 # Generate /root, /usr and /home partition images.
 128 #
 129 echo "Writing disk image..."
 130 FAT_START=2048 # those are sectors
 131 ROOT_START=$(($FAT_START + $FAT_SIZE))
 132 echo " * ROOT"
 133 _ROOT_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${ROOTSIZEARG} -I $((${ROOT_START}*512)) ${IMG} ${WORK_DIR}/proto.root)
 134 _ROOT_SIZE=$(($_ROOT_SIZE / 512))
 135 USR_START=$((${ROOT_START} + ${_ROOT_SIZE}))
 136 echo " * USR"
 137 _USR_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs  -d ${USRSIZEARG}  -I $((${USR_START}*512))  ${IMG} ${WORK_DIR}/proto.usr)
 138 _USR_SIZE=$(($_USR_SIZE / 512))
 139 HOME_START=$((${USR_START} + ${_USR_SIZE}))
 140 echo " * HOME"
 141 _HOME_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${HOMESIZEARG} -I $((${HOME_START}*512)) ${IMG} ${WORK_DIR}/proto.home)
 142 _HOME_SIZE=$(($_HOME_SIZE / 512))
 143 echo " * BOOT"
 144 rm -rf ${ROOT_DIR}/*
 145 cp ${RELEASETOOLSDIR}/u-boot/${U_BOOT_BIN_DIR}/MLO ${ROOT_DIR}/
 146 cp ${RELEASETOOLSDIR}/u-boot/${U_BOOT_BIN_DIR}/u-boot.img ${ROOT_DIR}/
 147
 148 # Create a uEnv.txt file
 149 # -n default to network boot
 150 # -p add a prefix to the network booted files (e.g. xm/"
 151 # -c set console e.g. tty02 or tty00
 152 # -v set verbosity e.g. 0 to 3
 153 #${RELEASETOOLSDIR}/gen_uEnv.txt.sh -c ${CONSOLE} -n -p bb/ > ${WORK_DIR}/uEnv.txt
 154 ${RELEASETOOLSDIR}/gen_uEnv.txt.sh -c ${CONSOLE}  > ${ROOT_DIR}/uEnv.txt
 155
 156 # Do some last processing of the kernel and servers and then put them on the FAT
 157 # partition.
 158 ${CROSS_PREFIX}objcopy ${OBJ}/minix/kernel/kernel -O binary ${ROOT_DIR}/kernel.bin
 159
 160 for f in servers/vm/vm servers/rs/rs servers/pm/pm servers/sched/sched \
 161         servers/vfs/vfs servers/ds/ds servers/mib/mib fs/pfs/pfs fs/mfs/mfs \
 162         ../sbin/init/init drivers/tty/tty/tty drivers/storage/memory/memory
 163 do
 164     fn=`basename $f`.elf
 165     cp ${OBJ}/minix/${f} ${ROOT_DIR}/${fn}
 166     ${CROSS_PREFIX}strip -s ${ROOT_DIR}/${fn}
 167 done
 168 cat >${WORK_DIR}/boot.mtree <<EOF
 169 . type=dir
 170 ./MLO type=file
 171 ./u-boot.img type=file
 172 ./uEnv.txt type=file
 173 ./kernel.bin type=file
 174 ./ds.elf type=file
 175 ./rs.elf type=file
 176 ./pm.elf type=file
 177 ./sched.elf type=file
 178 ./vfs.elf type=file
 179 ./memory.elf type=file
 180 ./tty.elf type=file
 181 ./mib.elf type=file
 182 ./vm.elf type=file
 183 ./pfs.elf type=file
 184 ./mfs.elf type=file
 185 ./init.elf type=file
 186 EOF
 187
 188 #
 189 # Create the FAT partition, which contains the bootloader files, kernel and modules
 190 #
 191 ${CROSS_TOOLS}/nbmakefs -t msdos -s ${FAT_SIZE}b -o F=16,c=1 \
 192         -F ${WORK_DIR}/boot.mtree ${WORK_DIR}/fat.img ${ROOT_DIR}
 193
 194 #
 195 # Write the partition table using the natively compiled
 196 # minix partition utility
 197 #
 198 ${CROSS_TOOLS}/nbpartition -f -m ${IMG} ${FAT_START} \
 199         "c:${FAT_SIZE}*" 81:${_ROOT_SIZE} 81:${_USR_SIZE} 81:${_HOME_SIZE}
 200
 201 #
 202 # Merge the partitions into a single image.
 203 #
 204 echo "Merging file systems"
 205 dd if=${WORK_DIR}/fat.img of=${IMG} seek=$FAT_START conv=notrunc
 206
 207 echo "Disk image at `pwd`/${IMG}"
 208 echo "To boot this image on kvm:"
 209 echo "qemu-system-arm -M beaglexm -serial stdio -drive if=sd,cache=writeback,file=`pwd`/${IMG}"