文件操作 - syscallhdr.sh
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文件: /usr/src/kernels/4.18.0-553.144.1.el8_10.x86_64/arch/x86/entry/syscalls/syscallhdr.sh
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#!/bin/sh # SPDX-License-Identifier: GPL-2.0 in="$1" out="$2" my_abis=`echo "($3)" | tr ',' '|'` prefix="$4" offset="$5" fileguard=_ASM_X86_`basename "$out" | sed \ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \ -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'` grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | ( echo "#ifndef ${fileguard}" echo "#define ${fileguard} 1" echo "" while read nr abi name entry ; do if [ -z "$offset" ]; then echo "#define __NR_${prefix}${name} $nr" else echo "#define __NR_${prefix}${name} ($offset + $nr)" fi done echo "" echo "#endif /* ${fileguard} */" ) > "$out"
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