[mirror_ubuntu-jammy-kernel.git] / arch / arm / tools / syscallnr.sh

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
in="$1"
out="$2"
align=1

fileguard=_ASM_ARM_`basename "$out" | sed \
    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`

grep -E "^[0-9A-Fa-fXx]+[[:space:]]+" "$in" | sort -n | tail -n1 | (
    echo "#ifndef ${fileguard}
#define ${fileguard} 1

/*
 * This needs to be greater than __NR_last_syscall+1 in order to account
 * for the padding in the syscall table.
 */
"

    while read nr abi name entry; do
        nr=$(($nr + 1))
        while [ "$(($nr / (256 * $align) ))" -gt 0 ]; do
            align=$(( $align * 4 ))
        done
        nr=$(( ($nr + $align - 1) & ~($align - 1) ))
        echo "/* aligned to $align */"
        echo "#define __NR_syscalls $nr"
    done

    echo ""
    echo "#endif /* ${fileguard} */"
) > "$out"
Commit	Line	Data
96a8fae0	1	#!/bin/sh
b2441318	2	# SPDX-License-Identifier: GPL-2.0
96a8fae0 RK	3	in="$1"
96a8fae0 RK	4	out="$2"
96a8fae0 RK	5	align=1
	6
	7	fileguard=_ASM_ARM_`basename "$out" \| sed \
	8	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
	9	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
	10
b34b9820	11	grep -E "^[0-9A-Fa-fXx]+[[:space:]]+" "$in" \| sort -n \| tail -n1 \| (
96a8fae0 RK	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"