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14fbf575ec
- Generate a link to the initramfs file with an appropriate file extension, guessed based on the compressor by default - Use correct metadata in u-boot images if generated, up to now this was hardcoded to gzip and would silently generate an erroneous image if another compressor was specified - Document all the parameters - Improve cross-building compatibility, by allowing passing either a string as before, or a function taking a package set and returning the path to a compressor in the "compressor" argument of the function. - Support more compression algorithms - Place compressor executable function and arguments in passthru, for reuse when appending initramfses Co-Authored-By: Dominik Xaver Hörl <hoe.dom@gmx.de>
52 lines
1.2 KiB
Bash
52 lines
1.2 KiB
Bash
source $stdenv/setup
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set -o pipefail
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objects=($objects)
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symlinks=($symlinks)
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suffices=($suffices)
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mkdir root
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# Needed for splash_helper, which gets run before init.
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mkdir root/dev
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mkdir root/sys
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mkdir root/proc
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for ((n = 0; n < ${#objects[*]}; n++)); do
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object=${objects[$n]}
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symlink=${symlinks[$n]}
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suffix=${suffices[$n]}
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if test "$suffix" = none; then suffix=; fi
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mkdir -p $(dirname root/$symlink)
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ln -s $object$suffix root/$symlink
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done
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# Get the paths in the closure of `object'.
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storePaths=$(perl $pathsFromGraph closure-*)
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# Paths in cpio archives *must* be relative, otherwise the kernel
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# won't unpack 'em.
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(cd root && cp -prd --parents $storePaths .)
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# Put the closure in a gzipped cpio archive.
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mkdir -p $out
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for PREP in $prepend; do
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cat $PREP >> $out/initrd
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done
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(cd root && find * .[^.*] -exec touch -h -d '@1' '{}' +)
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(cd root && find * .[^.*] -print0 | sort -z | cpio -o -H newc -R +0:+0 --reproducible --null | eval -- $compress >> "$out/initrd")
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if [ -n "$makeUInitrd" ]; then
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mkimage -A $uInitrdArch -O linux -T ramdisk -C "$uInitrdCompression" -d $out/initrd"$extension" $out/initrd.img
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# Compatibility symlink
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ln -s "initrd.img" "$out/initrd"
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else
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ln -s "initrd" "$out/initrd$extension"
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fi
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