PKGBUILDs/core/linux-aarch64-rc/generate_chromebook_its.sh

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#!/bin/bash
image=$1
arch=$2
compression=$3
read -a dtb_list
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cat <<-ITS_HEADER_END
/dts-v1/;
/ {
description = "Chrome OS kernel image with one or more FDT blobs";
images {
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kernel {
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description = "kernel";
data = /incbin/("${image}");
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type = "kernel_noload";
arch = "${arch}";
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os = "linux";
compression = "${compression}";
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load = <0>;
entry = <0>;
};
ITS_HEADER_END
for i in ${!dtb_list[@]}; do
dtb=${dtb_list[${i}]}
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cat <<-FDT_END
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fdt-$(expr ${i} + 1) {
description = "$(basename ${dtb})";
data = /incbin/("${dtb}");
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type = "flat_dt";
arch = "${arch}";
compression = "${compression}";
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hash {
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algo = "sha1";
};
};
FDT_END
done
cat <<-ITS_MIDDLE_END
};
configurations {
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default = "conf-1";
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ITS_MIDDLE_END
for i in "${!dtb_list[@]}"; do
compat_line=""
dtb_uncompressed=$(echo ${dtb_list[${i}]} | sed "s/\(\.dtb\).*/\1/g")
for compat in $(fdtget "${dtb_uncompressed}" / compatible); do
compat_line+="\"${compat}\","
done
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cat <<-ITS_CONF_END
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conf-$(expr ${i} + 1) {
kernel = "kernel";
fdt = "fdt-$(expr ${i} + 1)";
compatible = ${compat_line%,};
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};
ITS_CONF_END
done
cat <<-ITS_FOOTER_END
};
};
ITS_FOOTER_END