Files
linux/arch/arm64/tools/gen-kernel-hwcaps.sh
Mark Brown abed23c3c4 arm64/hwcap: Generate the KERNEL_HWCAP_ definitions for the hwcaps
Currently for each hwcap we define both the HWCAPn_NAME definition which is
exposed to userspace and a kernel internal KERNEL_HWCAP_NAME definition
which we use internally. This is tedious and repetitive, instead use a
script to generate the KERNEL_HWCAP_ definitions from the UAPI definitions.

No functional changes intended.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2026-04-09 16:50:23 +01:00

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#!/bin/sh -e
# SPDX-License-Identifier: GPL-2.0
#
# gen-kernel-hwcap.sh - Generate kernel internal hwcap.h definitions
#
# Copyright 2026 Arm, Ltd.
if [ "$1" = "" ]; then
echo "$0: no filename specified"
exit 1
fi
echo "#ifndef __ASM_KERNEL_HWCAPS_H"
echo "#define __ASM_KERNEL_HWCAPS_H"
echo ""
echo "/* Generated file - do not edit */"
echo ""
grep -E '^#define HWCAP[0-9]*_[A-Z0-9_]+' $1 | \
sed 's/.*HWCAP\([0-9]*\)_\([A-Z0-9_]\+\).*/#define KERNEL_HWCAP_\2\t__khwcap\1_feature(\2)/'
echo ""
echo "#endif /* __ASM_KERNEL_HWCAPS_H */"