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- #!/bin/sh
- check_vmlinux()
- {
-
-
-
- readelf -h $1 > /dev/null 2>&1 || return 1
- cat $1
- exit 0
- }
- try_decompress()
- {
-
-
-
- for pos in `tr "$1\n$2" "\n$2=" < "$img" | grep -abo "^$2"`
- do
- pos=${pos%%:*}
- tail -c+$pos "$img" | $3 > $tmp 2> /dev/null
- check_vmlinux $tmp
- done
- }
- me=${0##*/}
- img=$1
- if [ $# -ne 1 -o ! -s "$img" ]
- then
- echo "Usage: $me <kernel-image>" >&2
- exit 2
- fi
- tmp=$(mktemp /tmp/vmlinux-XXX)
- trap "rm -f $tmp" 0
- check_vmlinux $img
- try_decompress '\037\213\010' xy gunzip
- try_decompress '\3757zXZ\000' abcde unxz
- try_decompress 'BZh' xy bunzip2
- try_decompress '\135\0\0\0' xxx unlzma
- try_decompress '\211\114\132' xy 'lzop -d'
- try_decompress '\002!L\030' xxx 'lz4 -d'
- try_decompress '(\265/\375' xxx unzstd
- echo "$me: Cannot find vmlinux." >&2
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