genode/tool/run/image/uboot
2019-05-27 14:52:51 +02:00

51 lines
1.3 KiB
Plaintext

##
# Build U-boot bootloader specific uImage
#
# \param --image-uboot-no-gzip do not gzip the uImage
#
##
# Check if the uImage should be gzipped
#
proc image_uboot_use_no_gzip { } { return [get_cmd_switch --image-uboot-no-gzip] }
##
# Build U-boot bootloader specific uImage
#
# \param elf_img ELF binary to build uImage from
#
proc run_image {elf_img} {
# parse ELF entrypoint and load address
set entrypoint [exec [cross_dev_prefix]readelf -h $elf_img | \
grep "Entry point address: " | \
sed -e "s/.*Entry point address: *//"]
set load_addr [exec [cross_dev_prefix]readelf -l $elf_img | \
grep -m 1 "LOAD"]
set load_addr [lindex [regexp -inline -all -- {\S+} $load_addr] 3]
set bin_img "[run_dir]/image.bin"
exec [cross_dev_prefix]objcopy -O binary $elf_img $bin_img
set use_gzip [expr ![image_uboot_use_no_gzip]]
set compress_type none
set bin_ext ""
# compress ELF
if $use_gzip {
exec gzip --best --force $bin_img
set bin_ext .gz
set compress_type gzip
}
set arch "arm"
if {[have_spec arm_64]} { set arch "arm64" }
# create uImage
set uboot_img [run_dir]/uImage
exec mkimage -A $arch -O linux -T kernel -C $compress_type -a $load_addr \
-e $entrypoint -d $bin_img$bin_ext $uboot_img
exec rm -rf $bin_img$bin_ext
}