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1d8c78c8cd
The integration of the FIT image-related build steps into the kernel recipe has proven to be not very good. The new implementation with kernel-fit-image.bbclass fixes some design issues: * sstate does not work well when a fitImage contains an initramfs. The kernel is rebuilt from scratch if the build runs from an empty TMPDIR. * A fitImage kernel is not available as a package, but all other kernel image types are. * The task dependencies in the kernel are very complex and difficult to debug if something goes wrong. As a separate, downstream recipe, this is now much easier. The long storry about this issue is here: [YOCTO #12912] (From OE-Core rev: deb6bc3bea30dadabdb580a7a58a3b2e277af400) Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
60 lines
1.7 KiB
Plaintext
60 lines
1.7 KiB
Plaintext
#
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# Copyright OpenEmbedded Contributors
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#
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# SPDX-License-Identifier: MIT
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#
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# fitImage kernel compression algorithm
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FIT_KERNEL_COMP_ALG ?= "gzip"
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FIT_KERNEL_COMP_ALG_EXTENSION ?= ".gz"
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# Kernel image type passed to mkimage (i.e. kernel kernel_noload...)
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UBOOT_MKIMAGE_KERNEL_TYPE ?= "kernel"
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uboot_prep_kimage() {
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output_dir=$1
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# For backward compatibility with kernel-fitimage.bbclass and kernel-uboot.bbclass
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# support calling without parameter as well
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if [ -z "$output_dir" ]; then
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output_dir='.'
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fi
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linux_bin=$output_dir/linux.bin
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if [ -e "arch/${ARCH}/boot/compressed/vmlinux" ]; then
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vmlinux_path="arch/${ARCH}/boot/compressed/vmlinux"
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linux_suffix=""
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linux_comp="none"
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elif [ -e "arch/${ARCH}/boot/vmlinuz.bin" ]; then
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rm -f "$linux_bin"
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cp -l "arch/${ARCH}/boot/vmlinuz.bin" "$linux_bin"
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vmlinux_path=""
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linux_suffix=""
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linux_comp="none"
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else
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vmlinux_path="vmlinux"
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# Use vmlinux.initramfs for $linux_bin when INITRAMFS_IMAGE_BUNDLE set
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# As per the implementation in kernel.bbclass.
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# See do_bundle_initramfs function
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if [ "${INITRAMFS_IMAGE_BUNDLE}" = "1" ] && [ -e vmlinux.initramfs ]; then
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vmlinux_path="vmlinux.initramfs"
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fi
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linux_suffix="${FIT_KERNEL_COMP_ALG_EXTENSION}"
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linux_comp="${FIT_KERNEL_COMP_ALG}"
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fi
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[ -n "$vmlinux_path" ] && ${KERNEL_OBJCOPY} -O binary -R .note -R .comment -S "$vmlinux_path" "$linux_bin"
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if [ "$linux_comp" != "none" ] ; then
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if [ "$linux_comp" = "gzip" ] ; then
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gzip -9 "$linux_bin"
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elif [ "$linux_comp" = "lzo" ] ; then
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lzop -9 "$linux_bin"
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elif [ "$linux_comp" = "lzma" ] ; then
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xz --format=lzma -f -6 "$linux_bin"
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fi
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mv -f "$linux_bin$linux_suffix" "$linux_bin"
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fi
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printf "$linux_comp" > "$output_dir/linux_comp"
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}
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