1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3in="$1"
4out="$2"
5align=1
6
7fileguard=_ASM_ARM_`basename "$out" | sed \
8    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
9    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
10
11grep -E "^[0-9A-Fa-fXx]+[[:space:]]+" "$in" | sort -n | tail -n1 | (
12    echo "#ifndef ${fileguard}
13#define ${fileguard} 1
14
15/*
16 * This needs to be greater than __NR_last_syscall+1 in order to account
17 * for the padding in the syscall table.
18 */
19"
20
21    while read nr abi name entry; do
22        nr=$(($nr + 1))
23        while [ "$(($nr / (256 * $align) ))" -gt 0 ]; do
24            align=$(( $align * 4 ))
25        done
26        nr=$(( ($nr + $align - 1) & ~($align - 1) ))
27        echo "/* aligned to $align */"
28        echo "#define __NR_syscalls $nr"
29    done
30
31    echo ""
32    echo "#endif /* ${fileguard} */"
33) > "$out"
34