[mirror_qemu.git] / scripts / update-linux-headers.sh

#!/bin/sh -e
#
# Update Linux kernel headers QEMU requires from a specified kernel tree.
#
# Copyright (C) 2011 Siemens AG
#
# Authors:
#  Jan Kiszka        <jan.kiszka@siemens.com>
#
# This work is licensed under the terms of the GNU GPL version 2.
# See the COPYING file in the top-level directory.

tmpdir=$(mktemp -d)
linux="$1"
output="$2"

if [ -z "$linux" ] || ! [ -d "$linux" ]; then
    cat << EOF
usage: update-kernel-headers.sh LINUX_PATH [OUTPUT_PATH]

LINUX_PATH      Linux kernel directory to obtain the headers from
OUTPUT_PATH     output directory, usually the qemu source tree (default: $PWD)
EOF
    exit 1
fi

if [ -z "$output" ]; then
    output="$PWD"
fi

cp_portable() {
    f=$1
    to=$2
    if
        grep '#include' "$f" | grep -v -e 'linux/virtio' \
                                     -e 'linux/types' \
                                     -e 'stdint' \
                                     -e 'linux/if_ether' \
                                     -e 'input-event-codes' \
                                     -e 'sys/' \
                                     -e 'pvrdma_verbs' \
                                     -e 'drm.h' \
                                     -e 'limits' \
                                     -e 'linux/kernel' \
                                     -e 'linux/sysinfo' \
                                     -e 'asm-generic/kvm_para' \
                                     > /dev/null
    then
        echo "Unexpected #include in input file $f".
        exit 2
    fi

    header=$(basename "$f");
    sed -e 's/__aligned_u64/__u64 __attribute__((aligned(8)))/g' \
        -e 's/__u\([0-9][0-9]*\)/uint\1_t/g' \
        -e 's/u\([0-9][0-9]*\)/uint\1_t/g' \
        -e 's/__s\([0-9][0-9]*\)/int\1_t/g' \
        -e 's/__le\([0-9][0-9]*\)/uint\1_t/g' \
        -e 's/__be\([0-9][0-9]*\)/uint\1_t/g' \
        -e 's/"\(input-event-codes\.h\)"/"standard-headers\/linux\/\1"/' \
        -e 's/<linux\/\([^>]*\)>/"standard-headers\/linux\/\1"/' \
        -e 's/__bitwise//' \
        -e 's/__attribute__((packed))/QEMU_PACKED/' \
        -e 's/__inline__/inline/' \
        -e 's/__BITS_PER_LONG/HOST_LONG_BITS/' \
        -e '/\"drm.h\"/d' \
        -e '/sys\/ioctl.h/d' \
        -e 's/SW_MAX/SW_MAX_/' \
        -e 's/atomic_t/int/' \
        -e 's/__kernel_long_t/long/' \
        -e 's/__kernel_ulong_t/unsigned long/' \
        -e 's/struct ethhdr/struct eth_header/' \
        -e '/\#define _LINUX_ETHTOOL_H/a \\n\#include "net/eth.h"' \
        "$f" > "$to/$header";
}

# This will pick up non-directories too (eg "Kconfig") but we will
# ignore them in the next loop.
ARCHLIST=$(cd "$linux/arch" && echo *)

for arch in $ARCHLIST; do
    # Discard anything which isn't a KVM-supporting architecture
    if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] &&
        ! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then
        continue
    fi

    if [ "$arch" = x86 ]; then
        arch_var=SRCARCH
    else
        arch_var=ARCH
    fi

    make -C "$linux" INSTALL_HDR_PATH="$tmpdir" $arch_var=$arch headers_install

    rm -rf "$output/linux-headers/asm-$arch"
    mkdir -p "$output/linux-headers/asm-$arch"
    for header in kvm.h unistd.h bitsperlong.h mman.h; do
        cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch"
    done

    if [ $arch = mips ]; then
        cp "$tmpdir/include/asm/sgidefs.h" "$output/linux-headers/asm-mips/"
        cp "$tmpdir/include/asm/unistd_o32.h" "$output/linux-headers/asm-mips/"
        cp "$tmpdir/include/asm/unistd_n32.h" "$output/linux-headers/asm-mips/"
        cp "$tmpdir/include/asm/unistd_n64.h" "$output/linux-headers/asm-mips/"
    fi
    if [ $arch = powerpc ]; then
        cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-powerpc/"
        cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-powerpc/"
    fi

    rm -rf "$output/include/standard-headers/asm-$arch"
    mkdir -p "$output/include/standard-headers/asm-$arch"
    if [ $arch = s390 ]; then
        cp_portable "$tmpdir/include/asm/virtio-ccw.h" "$output/include/standard-headers/asm-s390/"
        cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-s390/"
        cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-s390/"
    fi
    if [ $arch = arm ]; then
        cp "$tmpdir/include/asm/unistd-eabi.h" "$output/linux-headers/asm-arm/"
        cp "$tmpdir/include/asm/unistd-oabi.h" "$output/linux-headers/asm-arm/"
        cp "$tmpdir/include/asm/unistd-common.h" "$output/linux-headers/asm-arm/"
    fi
    if [ $arch = arm64 ]; then
        cp "$tmpdir/include/asm/sve_context.h" "$output/linux-headers/asm-arm64/"
    fi
    if [ $arch = x86 ]; then
        cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-x86/"
        cp "$tmpdir/include/asm/unistd_x32.h" "$output/linux-headers/asm-x86/"
        cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-x86/"
        cp_portable "$tmpdir/include/asm/kvm_para.h" "$output/include/standard-headers/asm-$arch"
        # Remove everything except the macros from bootparam.h avoiding the
        # unnecessary import of several video/ist/etc headers
        sed -e '/__ASSEMBLY__/,/__ASSEMBLY__/d' \
               "$tmpdir/include/asm/bootparam.h" > "$tmpdir/bootparam.h"
        cp_portable "$tmpdir/bootparam.h" \
                    "$output/include/standard-headers/asm-$arch"
    fi
done

rm -rf "$output/linux-headers/linux"
mkdir -p "$output/linux-headers/linux"
for header in kvm.h vfio.h vfio_ccw.h vhost.h \
              psci.h psp-sev.h userfaultfd.h mman.h; do
    cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
done

rm -rf "$output/linux-headers/asm-generic"
mkdir -p "$output/linux-headers/asm-generic"
for header in unistd.h bitsperlong.h mman-common.h mman.h hugetlb_encode.h; do
    cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic"
done

if [ -L "$linux/source" ]; then
    cp "$linux/source/COPYING" "$output/linux-headers"
else
    cp "$linux/COPYING" "$output/linux-headers"
fi

# Recent kernel sources split the copyright/license info into multiple
# files, which we need to copy. This set of licenses is the set that
# are referred to by SPDX lines in the headers we currently copy.
# We don't copy the Documentation/process/license-rules.rst which
# is also referred to by COPYING, since it's explanatory rather than license.
if [ -d "$linux/LICENSES" ]; then
    mkdir -p "$output/linux-headers/LICENSES/preferred" \
             "$output/linux-headers/LICENSES/exceptions"
    for l in preferred/GPL-2.0 preferred/BSD-2-Clause preferred/BSD-3-Clause \
             exceptions/Linux-syscall-note; do
        cp "$linux/LICENSES/$l" "$output/linux-headers/LICENSES/$l"
    done
fi

cat <<EOF >$output/linux-headers/linux/virtio_config.h
#include "standard-headers/linux/virtio_config.h"
EOF
cat <<EOF >$output/linux-headers/linux/virtio_ring.h
#include "standard-headers/linux/virtio_ring.h"
EOF
cat <<EOF >$output/linux-headers/linux/vhost_types.h
#include "standard-headers/linux/vhost_types.h"
EOF

rm -rf "$output/include/standard-headers/linux"
mkdir -p "$output/include/standard-headers/linux"
for i in "$tmpdir"/include/linux/*virtio*.h \
         "$tmpdir/include/linux/qemu_fw_cfg.h" \
         "$tmpdir/include/linux/input.h" \
         "$tmpdir/include/linux/input-event-codes.h" \
         "$tmpdir/include/linux/pci_regs.h" \
         "$tmpdir/include/linux/ethtool.h" "$tmpdir/include/linux/kernel.h" \
         "$tmpdir/include/linux/vhost_types.h" \
         "$tmpdir/include/linux/sysinfo.h"; do
    cp_portable "$i" "$output/include/standard-headers/linux"
done
mkdir -p "$output/include/standard-headers/drm"
cp_portable "$tmpdir/include/drm/drm_fourcc.h" \
            "$output/include/standard-headers/drm"

rm -rf "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma"
mkdir -p "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma"

# Remove the unused functions from pvrdma_verbs.h avoiding the unnecessary
# import of several infiniband/networking/other headers
tmp_pvrdma_verbs="$tmpdir/pvrdma_verbs.h"
# Parse the entire file instead of single lines to match
# function declarations expanding over multiple lines
# and strip the declarations starting with pvrdma prefix.
sed  -e '1h;2,$H;$!d;g'  -e 's/[^};]*pvrdma[^(| ]*([^)]*);//g' \
    "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h" > \
    "$tmp_pvrdma_verbs";

for i in "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h" \
         "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h" \
         "$tmp_pvrdma_verbs"; do \
    cp_portable "$i" \
         "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/"
done

rm -rf "$output/include/standard-headers/rdma/"
mkdir -p "$output/include/standard-headers/rdma/"
for i in "$tmpdir/include/rdma/vmw_pvrdma-abi.h"; do
    cp_portable "$i" \
         "$output/include/standard-headers/rdma/"
done

cat <<EOF >$output/include/standard-headers/linux/types.h
/* For QEMU all types are already defined via osdep.h, so this
 * header does not need to do anything.
 */
EOF
cat <<EOF >$output/include/standard-headers/linux/if_ether.h
#define ETH_ALEN    6
EOF

rm -rf "$tmpdir"
Commit	Line	Data
87fdd476 JK	1	#!/bin/sh -e
	2	#
	3	# Update Linux kernel headers QEMU requires from a specified kernel tree.
	4	#
	5	# Copyright (C) 2011 Siemens AG
	6	#
	7	# Authors:
	8	# Jan Kiszka <jan.kiszka@siemens.com>
	9	#
	10	# This work is licensed under the terms of the GNU GPL version 2.
	11	# See the COPYING file in the top-level directory.
	12
bbd90802	13	tmpdir=$(mktemp -d)
87fdd476 JK	14	linux="$1"
	15	output="$2"
	16
	17	if [ -z "$linux" ] \|\| ! [ -d "$linux" ]; then
	18	cat << EOF
	19	usage: update-kernel-headers.sh LINUX_PATH [OUTPUT_PATH]
	20
	21	LINUX_PATH Linux kernel directory to obtain the headers from
	22	OUTPUT_PATH output directory, usually the qemu source tree (default: $PWD)
	23	EOF
	24	exit 1
	25	fi
	26
	27	if [ -z "$output" ]; then
	28	output="$PWD"
	29	fi
	30
eddb4de3 PB	31	cp_portable() {
eddb4de3 PB	32	f=$1
1ff0b555	33	to=$2
eddb4de3 PB	34	if
	35	grep '#include' "$f" \| grep -v -e 'linux/virtio' \
	36	-e 'linux/types' \
	37	-e 'stdint' \
	38	-e 'linux/if_ether' \
fff02bc0	39	-e 'input-event-codes' \
eddb4de3	40	-e 'sys/' \
e1c5f1f0	41	-e 'pvrdma_verbs' \
8e8ee850	42	-e 'drm.h' \
d3b7b374 JB	43	-e 'limits' \
	44	-e 'linux/kernel' \
	45	-e 'linux/sysinfo' \
ec7b1080	46	-e 'asm-generic/kvm_para' \
eddb4de3 PB	47	> /dev/null
	48	then
	49	echo "Unexpected #include in input file $f".
	50	exit 2
1ff0b555	51	fi
eddb4de3 PB	52
eddb4de3 PB	53	header=$(basename "$f");
c5022c31 PM	54	sed -e 's/__aligned_u64/__u64 __attribute__((aligned(8)))/g' \
c5022c31 PM	55	-e 's/__u\([0-9][0-9]*\)/uint\1_t/g' \
e1c5f1f0	56	-e 's/u\([0-9][0-9]*\)/uint\1_t/g' \
eddb4de3 PB	57	-e 's/__s\([0-9][0-9]*\)/int\1_t/g' \
	58	-e 's/__le\([0-9][0-9]*\)/uint\1_t/g' \
	59	-e 's/__be\([0-9][0-9]*\)/uint\1_t/g' \
fff02bc0	60	-e 's/"\(input-event-codes\.h\)"/"standard-headers\/linux\/\1"/' \
eddb4de3	61	-e 's/<linux\/\([^>]*\)>/"standard-headers\/linux\/\1"/' \
ed219c40	62	-e 's/__bitwise//' \
eddb4de3 PB	63	-e 's/__attribute__((packed))/QEMU_PACKED/' \
eddb4de3 PB	64	-e 's/__inline__/inline/' \
9f2d175d	65	-e 's/__BITS_PER_LONG/HOST_LONG_BITS/' \
8e8ee850	66	-e '/\"drm.h\"/d' \
eddb4de3	67	-e '/sys\/ioctl.h/d' \
ac98fa84	68	-e 's/SW_MAX/SW_MAX_/' \
e1c5f1f0	69	-e 's/atomic_t/int/' \
d3b7b374 JB	70	-e 's/__kernel_long_t/long/' \
	71	-e 's/__kernel_ulong_t/unsigned long/' \
	72	-e 's/struct ethhdr/struct eth_header/' \
	73	-e '/\#define _LINUX_ETHTOOL_H/a \\n\#include "net/eth.h"' \
eddb4de3	74	"$f" > "$to/$header";
1ff0b555 MT	75	}
1ff0b555 MT	76
2879636d PM	77	# This will pick up non-directories too (eg "Kconfig") but we will
	78	# ignore them in the next loop.
	79	ARCHLIST=$(cd "$linux/arch" && echo *)
	80
	81	for arch in $ARCHLIST; do
	82	# Discard anything which isn't a KVM-supporting architecture
b55f546e PM	83	if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] &&
b55f546e PM	84	! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then
2879636d PM	85	continue
	86	fi
	87
f717e624 PB	88	if [ "$arch" = x86 ]; then
	89	arch_var=SRCARCH
	90	else
	91	arch_var=ARCH
	92	fi
	93
	94	make -C "$linux" INSTALL_HDR_PATH="$tmpdir" $arch_var=$arch headers_install
87fdd476 JK	95
	96	rm -rf "$output/linux-headers/asm-$arch"
	97	mkdir -p "$output/linux-headers/asm-$arch"
0289881f	98	for header in kvm.h unistd.h bitsperlong.h mman.h; do
87fdd476 JK	99	cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch"
87fdd476 JK	100	done
9882d3ef MT	101
	102	if [ $arch = mips ]; then
	103	cp "$tmpdir/include/asm/sgidefs.h" "$output/linux-headers/asm-mips/"
a0a6ef91 PB	104	cp "$tmpdir/include/asm/unistd_o32.h" "$output/linux-headers/asm-mips/"
	105	cp "$tmpdir/include/asm/unistd_n32.h" "$output/linux-headers/asm-mips/"
	106	cp "$tmpdir/include/asm/unistd_n64.h" "$output/linux-headers/asm-mips/"
	107	fi
	108	if [ $arch = powerpc ]; then
	109	cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-powerpc/"
	110	cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-powerpc/"
9882d3ef MT	111	fi
9882d3ef MT	112
eddb4de3 PB	113	rm -rf "$output/include/standard-headers/asm-$arch"
	114	mkdir -p "$output/include/standard-headers/asm-$arch"
	115	if [ $arch = s390 ]; then
eddb4de3	116	cp_portable "$tmpdir/include/asm/virtio-ccw.h" "$output/include/standard-headers/asm-s390/"
9f2d175d PB	117	cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-s390/"
9f2d175d PB	118	cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-s390/"
eddb4de3	119	fi
f717e624 PB	120	if [ $arch = arm ]; then
	121	cp "$tmpdir/include/asm/unistd-eabi.h" "$output/linux-headers/asm-arm/"
	122	cp "$tmpdir/include/asm/unistd-oabi.h" "$output/linux-headers/asm-arm/"
	123	cp "$tmpdir/include/asm/unistd-common.h" "$output/linux-headers/asm-arm/"
	124	fi
b1b9e0dc CH	125	if [ $arch = arm64 ]; then
	126	cp "$tmpdir/include/asm/sve_context.h" "$output/linux-headers/asm-arm64/"
	127	fi
73aa529a	128	if [ $arch = x86 ]; then
1842bdfd MAL	129	cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-x86/"
	130	cp "$tmpdir/include/asm/unistd_x32.h" "$output/linux-headers/asm-x86/"
	131	cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-x86/"
ec7b1080	132	cp_portable "$tmpdir/include/asm/kvm_para.h" "$output/include/standard-headers/asm-$arch"
06e0259a LZ	133	# Remove everything except the macros from bootparam.h avoiding the
	134	# unnecessary import of several video/ist/etc headers
	135	sed -e '/__ASSEMBLY__/,/__ASSEMBLY__/d' \
	136	"$tmpdir/include/asm/bootparam.h" > "$tmpdir/bootparam.h"
	137	cp_portable "$tmpdir/bootparam.h" \
	138	"$output/include/standard-headers/asm-$arch"
73aa529a	139	fi
87fdd476 JK	140	done
	141
	142	rm -rf "$output/linux-headers/linux"
	143	mkdir -p "$output/linux-headers/linux"
ec7b1080	144	for header in kvm.h vfio.h vfio_ccw.h vhost.h \
0289881f	145	psci.h psp-sev.h userfaultfd.h mman.h; do
87fdd476 JK	146	cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
87fdd476 JK	147	done
ec7b1080	148
9882d3ef MT	149	rm -rf "$output/linux-headers/asm-generic"
9882d3ef MT	150	mkdir -p "$output/linux-headers/asm-generic"
0289881f	151	for header in unistd.h bitsperlong.h mman-common.h mman.h hugetlb_encode.h; do
9882d3ef MT	152	cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic"
	153	done
	154
87fdd476 JK	155	if [ -L "$linux/source" ]; then
	156	cp "$linux/source/COPYING" "$output/linux-headers"
	157	else
	158	cp "$linux/COPYING" "$output/linux-headers"
	159	fi
	160
f5bba4ca PM	161	# Recent kernel sources split the copyright/license info into multiple
	162	# files, which we need to copy. This set of licenses is the set that
	163	# are referred to by SPDX lines in the headers we currently copy.
	164	# We don't copy the Documentation/process/license-rules.rst which
	165	# is also referred to by COPYING, since it's explanatory rather than license.
	166	if [ -d "$linux/LICENSES" ]; then
	167	mkdir -p "$output/linux-headers/LICENSES/preferred" \
	168	"$output/linux-headers/LICENSES/exceptions"
	169	for l in preferred/GPL-2.0 preferred/BSD-2-Clause preferred/BSD-3-Clause \
	170	exceptions/Linux-syscall-note; do
	171	cp "$linux/LICENSES/$l" "$output/linux-headers/LICENSES/$l"
	172	done
	173	fi
	174
05e492b0 MT	175	cat <<EOF >$output/linux-headers/linux/virtio_config.h
	176	#include "standard-headers/linux/virtio_config.h"
	177	EOF
	178	cat <<EOF >$output/linux-headers/linux/virtio_ring.h
	179	#include "standard-headers/linux/virtio_ring.h"
	180	EOF
a0a6ef91 PB	181	cat <<EOF >$output/linux-headers/linux/vhost_types.h
	182	#include "standard-headers/linux/vhost_types.h"
	183	EOF
1ff0b555	184
eddb4de3 PB	185	rm -rf "$output/include/standard-headers/linux"
eddb4de3 PB	186	mkdir -p "$output/include/standard-headers/linux"
039d7c4d MAL	187	for i in "$tmpdir"/include/linux/virtio.h \
	188	"$tmpdir/include/linux/qemu_fw_cfg.h" \
	189	"$tmpdir/include/linux/input.h" \
fff02bc0	190	"$tmpdir/include/linux/input-event-codes.h" \
d3b7b374 JB	191	"$tmpdir/include/linux/pci_regs.h" \
d3b7b374 JB	192	"$tmpdir/include/linux/ethtool.h" "$tmpdir/include/linux/kernel.h" \
a0a6ef91	193	"$tmpdir/include/linux/vhost_types.h" \
d3b7b374	194	"$tmpdir/include/linux/sysinfo.h"; do
eddb4de3 PB	195	cp_portable "$i" "$output/include/standard-headers/linux"
eddb4de3 PB	196	done
8e8ee850 GH	197	mkdir -p "$output/include/standard-headers/drm"
	198	cp_portable "$tmpdir/include/drm/drm_fourcc.h" \
	199	"$output/include/standard-headers/drm"
1ff0b555	200
e1c5f1f0 MA	201	rm -rf "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma"
	202	mkdir -p "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma"
	203
	204	# Remove the unused functions from pvrdma_verbs.h avoiding the unnecessary
	205	# import of several infiniband/networking/other headers
	206	tmp_pvrdma_verbs="$tmpdir/pvrdma_verbs.h"
	207	# Parse the entire file instead of single lines to match
	208	# function declarations expanding over multiple lines
	209	# and strip the declarations starting with pvrdma prefix.
	210	sed -e '1h;2,$H;$!d;g' -e 's/[^};]pvrdma[^(\| ]([^)]*);//g' \
	211	"$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h" > \
	212	"$tmp_pvrdma_verbs";
	213
	214	for i in "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h" \
	215	"$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h" \
	216	"$tmp_pvrdma_verbs"; do \
	217	cp_portable "$i" \
	218	"$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/"
	219	done
	220
	221	rm -rf "$output/include/standard-headers/rdma/"
	222	mkdir -p "$output/include/standard-headers/rdma/"
	223	for i in "$tmpdir/include/rdma/vmw_pvrdma-abi.h"; do
	224	cp_portable "$i" \
	225	"$output/include/standard-headers/rdma/"
	226	done
	227
1ff0b555	228	cat <<EOF >$output/include/standard-headers/linux/types.h
8bc92a76 PM	229	/* For QEMU all types are already defined via osdep.h, so this
	230	* header does not need to do anything.
	231	*/
1ff0b555 MT	232	EOF
	233	cat <<EOF >$output/include/standard-headers/linux/if_ether.h
	234	#define ETH_ALEN 6
	235	EOF
	236
87fdd476	237	rm -rf "$tmpdir"