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