1#!/usr/bin/env bash 2set -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: ${SETTINGS_MINIX=.settings} 13if [ -f "${SETTINGS_MINIX}" ] 14then 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} 20fi 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} 49U_BOOT_GIT_VERSION=cb5178f12787c690cb1c888d88733137e5a47b15 50 51if [ ! -f ${BUILDSH} ] 52then 53 echo "Please invoke me from the root source dir, where ${BUILDSH} is." 54 exit 1 55fi 56 57if [ -n "$BASE_URL" ] 58then 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 ${RELEASETOOLSDIR}/arm_sdimage.sh for suggested values" 64 exit 1 65fi 66 67export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:${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 81ROOTSIZEARG="-b $((${ROOT_SIZE} / 512 / 8))" 82USRSIZEARG="-b $((${USR_SIZE} / 512 / 8))" 83HOMESIZEARG="-b $((${HOME_SIZE} / 512 / 8))" 84 85# where the kernel & boot modules will be 86MODDIR=${DESTDIR}/boot/minix/.temp 87 88echo "Building work directory..." 89build_workdir "$SETS" 90 91echo "Adding extra files..." 92 93# create a fstab entry in /etc 94cat >${ROOT_DIR}/etc/fstab <<END_FSTAB 95/dev/c0d0p2 /usr mfs rw 0 2 96/dev/c0d0p3 /home mfs rw 0 2 97none /sys devman rw,rslabel=devman 0 0 98none /dev/pts ptyfs rw,rslabel=ptyfs 0 0 99END_FSTAB 100add_file_spec "etc/fstab" extra.fstab 101 102echo "Bundling packages..." 103bundle_packages "$BUNDLE_PACKAGES" 104 105echo "Creating specification files..." 106create_input_spec 107create_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 114if [ -f ${IMG} ] # IMG might be a block device 115then 116 rm -f ${IMG} 117fi 118 119# 120# Create the empty image where we later will put the partitions in. 121# Make sure it is at least 2GB, otherwise the SD card will not be detected 122# correctly in qemu / HW. 123# 124dd if=/dev/zero of=${IMG} bs=512 count=1 seek=$((($IMG_SIZE / 512) -1)) 125 126# 127# Generate /root, /usr and /home partition images. 128# 129echo "Writing disk image..." 130FAT_START=2048 # those are sectors 131ROOT_START=$(($FAT_START + $FAT_SIZE)) 132echo " * ROOT" 133_ROOT_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${ROOTSIZEARG} -I $((${ROOT_START}*512)) ${IMG} ${WORK_DIR}/proto.root) 134_ROOT_SIZE=$(($_ROOT_SIZE / 512)) 135USR_START=$((${ROOT_START} + ${_ROOT_SIZE})) 136echo " * USR" 137_USR_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${USRSIZEARG} -I $((${USR_START}*512)) ${IMG} ${WORK_DIR}/proto.usr) 138_USR_SIZE=$(($_USR_SIZE / 512)) 139HOME_START=$((${USR_START} + ${_USR_SIZE})) 140echo " * HOME" 141_HOME_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${HOMESIZEARG} -I $((${HOME_START}*512)) ${IMG} ${WORK_DIR}/proto.home) 142_HOME_SIZE=$(($_HOME_SIZE / 512)) 143echo " * BOOT" 144rm -rf ${ROOT_DIR}/* 145cp ${RELEASETOOLSDIR}/u-boot/${U_BOOT_BIN_DIR}/MLO ${ROOT_DIR}/ 146cp ${RELEASETOOLSDIR}/u-boot/${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 160for 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 163do 164 fn=`basename $f`.elf 165 cp ${OBJ}/minix/${f} ${ROOT_DIR}/${fn} 166 ${CROSS_PREFIX}strip -s ${ROOT_DIR}/${fn} 167done 168cat >${WORK_DIR}/boot.mtree <<EOF 169. type=dir 170./MLO type=file 171./u-boot.img type=file 172./uEnv.txt type=file 173./kernel.bin type=file 174./ds.elf type=file 175./rs.elf type=file 176./pm.elf type=file 177./sched.elf type=file 178./vfs.elf type=file 179./memory.elf type=file 180./tty.elf type=file 181./mib.elf type=file 182./vm.elf type=file 183./pfs.elf type=file 184./mfs.elf type=file 185./init.elf type=file 186EOF 187 188# 189# Create the FAT partition, which contains the bootloader files, kernel and modules 190# 191${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:${_HOME_SIZE} 200 201# 202# Merge the partitions into a single image. 203# 204echo "Merging file systems" 205dd if=${WORK_DIR}/fat.img of=${IMG} seek=$FAT_START conv=notrunc 206 207echo "Disk image at `pwd`/${IMG}" 208echo "To boot this image on kvm:" 209echo "qemu-system-arm -M beaglexm -serial stdio -drive if=sd,cache=writeback,file=`pwd`/${IMG}" 210