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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293#!/bin/sh# SPDX-License-Identifier: GPL-2.0-only## Generate a syscall table header.## Each line of the syscall table should have the following format:## NR ABI NAME [NATIVE] [COMPAT]## NR syscall number# ABI ABI name# NAME syscall name# NATIVE native entry point (optional)# COMPAT compat entry point (optional)
set -e
usage() { echo >&2 "usage: $0 [--abis ABIS] INFILE OUTFILE" >&2 echo >&2 echo >&2 " INFILE input syscall table" echo >&2 " OUTFILE output header file" echo >&2 echo >&2 "options:" echo >&2 " --abis ABIS ABI(s) to handle (By default, all lines are handled)" exit 1}
# default unless specified by optionsabis=
while [ $# -gt 0 ]do case $1 in --abis) abis=$(echo "($2)" | tr ',' '|') shift 2;; -*) echo "$1: unknown option" >&2 usage;; *) break;; esacdone
if [ $# -ne 2 ]; then usagefi
infile="$1"outfile="$2"
nxt=0
grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | {
while read nr abi name native compat noreturn; do
if [ $nxt -gt $nr ]; then echo "error: $infile: syscall table is not sorted or duplicates the same syscall number" >&2 exit 1 fi
while [ $nxt -lt $nr ]; do echo "__SYSCALL($nxt, sys_ni_syscall)" nxt=$((nxt + 1)) done
if [ "$compat" = "-" ]; then unset compat fi
if [ -n "$noreturn" ]; then if [ "$noreturn" != "noreturn" ]; then echo "error: $infile: invalid string \"$noreturn\" in 'noreturn' column" exit 1 fi if [ -n "$compat" ]; then echo "__SYSCALL_COMPAT_NORETURN($nr, $native, $compat)" else echo "__SYSCALL_NORETURN($nr, $native)" fi elif [ -n "$compat" ]; then echo "__SYSCALL_WITH_COMPAT($nr, $native, $compat)" elif [ -n "$native" ]; then echo "__SYSCALL($nr, $native)" else echo "__SYSCALL($nr, sys_ni_syscall)" fi nxt=$((nr + 1)) done} > "$outfile"