b51ddd937f
Running "install_headers" in the Linux source tree is fairly
unfriendly as out-of-tree builds will start complaining about the
kernel source being non-pristine. As we have a temporary directory for
the install we should also do the build step here. So now we have:
$tmpdir/
$blddir/
$hdrdir/
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240514174253.694591-3-alex.bennee@linaro.org>
244 lines
9.5 KiB
Bash
Executable File
244 lines
9.5 KiB
Bash
Executable File
#!/bin/sh -e
|
|
#
|
|
# Update Linux kernel headers QEMU requires from a specified kernel tree.
|
|
#
|
|
# Copyright (C) 2011 Siemens AG
|
|
#
|
|
# Authors:
|
|
# Jan Kiszka <jan.kiszka@siemens.com>
|
|
#
|
|
# This work is licensed under the terms of the GNU GPL version 2.
|
|
# See the COPYING file in the top-level directory.
|
|
#
|
|
# The script will copy the headers into two target folders:
|
|
#
|
|
# - linux-headers/ for files that are required for compiling for a
|
|
# Linux host. Generally we have these so we can use kernel structs
|
|
# and defines that are more recent than the headers that might be
|
|
# installed on the host system. Usually this script can do simple
|
|
# file copies for these headers.
|
|
#
|
|
# - include/standard-headers/ for files that are used for guest
|
|
# device emulation and are required on all hosts. For instance, we
|
|
# get our definitions of the virtio structures from the Linux
|
|
# kernel headers, but we need those definitions regardless of which
|
|
# host OS we are building for. This script has to be careful to
|
|
# sanitize the headers to remove any use of Linux-specifics such as
|
|
# types like "__u64". This work is done in the cp_portable function.
|
|
|
|
tmpdir=$(mktemp -d)
|
|
hdrdir="$tmpdir/headers"
|
|
blddir="$tmpdir/build"
|
|
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 'linux/ioctl' \
|
|
-e 'stdint' \
|
|
-e 'linux/if_ether' \
|
|
-e 'input-event-codes' \
|
|
-e 'sys/' \
|
|
-e 'drm.h' \
|
|
-e 'limits' \
|
|
-e 'linux/const' \
|
|
-e 'linux/kernel' \
|
|
-e 'linux/sysinfo' \
|
|
-e 'asm/setup_data.h' \
|
|
> /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/<asm\/\([^>]*\)>/"standard-headers\/asm-'$arch'\/\1"/' \
|
|
-e 's/__bitwise//' \
|
|
-e 's/__attribute__((packed))/QEMU_PACKED/' \
|
|
-e 's/__inline__/inline/' \
|
|
-e 's/__BITS_PER_LONG/HOST_LONG_BITS/' \
|
|
-e '/\"drm.h\"/d' \
|
|
-e '/sys\/ioctl.h/d' \
|
|
-e '/linux\/ioctl.h/d' \
|
|
-e 's/SW_MAX/SW_MAX_/' \
|
|
-e 's/atomic_t/int/' \
|
|
-e 's/__kernel_long_t/long/' \
|
|
-e 's/__kernel_ulong_t/unsigned long/' \
|
|
-e 's/struct ethhdr/struct eth_header/' \
|
|
-e '/\#define _LINUX_ETHTOOL_H/a \\n\#include "net/eth.h"' \
|
|
"$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 "$linux" O="$blddir" INSTALL_HDR_PATH="$hdrdir" $arch_var=$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 "$hdrdir/include/asm/$header" "$output/linux-headers/asm-$arch"
|
|
done
|
|
|
|
if [ $arch = mips ]; then
|
|
cp "$hdrdir/include/asm/sgidefs.h" "$output/linux-headers/asm-mips/"
|
|
cp "$hdrdir/include/asm/unistd_o32.h" "$output/linux-headers/asm-mips/"
|
|
cp "$hdrdir/include/asm/unistd_n32.h" "$output/linux-headers/asm-mips/"
|
|
cp "$hdrdir/include/asm/unistd_n64.h" "$output/linux-headers/asm-mips/"
|
|
fi
|
|
if [ $arch = powerpc ]; then
|
|
cp "$hdrdir/include/asm/unistd_32.h" "$output/linux-headers/asm-powerpc/"
|
|
cp "$hdrdir/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 [ $arch = s390 ]; then
|
|
cp_portable "$hdrdir/include/asm/virtio-ccw.h" "$output/include/standard-headers/asm-s390/"
|
|
cp "$hdrdir/include/asm/unistd_32.h" "$output/linux-headers/asm-s390/"
|
|
cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-s390/"
|
|
fi
|
|
if [ $arch = arm ]; then
|
|
cp "$hdrdir/include/asm/unistd-eabi.h" "$output/linux-headers/asm-arm/"
|
|
cp "$hdrdir/include/asm/unistd-oabi.h" "$output/linux-headers/asm-arm/"
|
|
cp "$hdrdir/include/asm/unistd-common.h" "$output/linux-headers/asm-arm/"
|
|
fi
|
|
if [ $arch = arm64 ]; then
|
|
cp "$hdrdir/include/asm/sve_context.h" "$output/linux-headers/asm-arm64/"
|
|
fi
|
|
if [ $arch = x86 ]; then
|
|
cp "$hdrdir/include/asm/unistd_32.h" "$output/linux-headers/asm-x86/"
|
|
cp "$hdrdir/include/asm/unistd_x32.h" "$output/linux-headers/asm-x86/"
|
|
cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-x86/"
|
|
cp_portable "$hdrdir/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' \
|
|
"$hdrdir/include/asm/bootparam.h" > "$hdrdir/bootparam.h"
|
|
cp_portable "$hdrdir/bootparam.h" \
|
|
"$output/include/standard-headers/asm-$arch"
|
|
cp_portable "$hdrdir/include/asm/setup_data.h" \
|
|
"$output/standard-headers/asm-x86"
|
|
fi
|
|
if [ $arch = riscv ]; then
|
|
cp "$hdrdir/include/asm/ptrace.h" "$output/linux-headers/asm-riscv/"
|
|
fi
|
|
done
|
|
arch=
|
|
|
|
rm -rf "$output/linux-headers/linux"
|
|
mkdir -p "$output/linux-headers/linux"
|
|
for header in const.h stddef.h kvm.h vfio.h vfio_ccw.h vfio_zdev.h vhost.h \
|
|
psci.h psp-sev.h userfaultfd.h memfd.h mman.h nvme_ioctl.h \
|
|
vduse.h iommufd.h bits.h; do
|
|
cp "$hdrdir/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 "$hdrdir/include/asm-generic/$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 "$hdrdir"/include/linux/*virtio*.h \
|
|
"$hdrdir/include/linux/qemu_fw_cfg.h" \
|
|
"$hdrdir/include/linux/fuse.h" \
|
|
"$hdrdir/include/linux/input.h" \
|
|
"$hdrdir/include/linux/input-event-codes.h" \
|
|
"$hdrdir/include/linux/udmabuf.h" \
|
|
"$hdrdir/include/linux/pci_regs.h" \
|
|
"$hdrdir/include/linux/ethtool.h" \
|
|
"$hdrdir/include/linux/const.h" \
|
|
"$hdrdir/include/linux/kernel.h" \
|
|
"$hdrdir/include/linux/vhost_types.h" \
|
|
"$hdrdir/include/linux/sysinfo.h" \
|
|
"$hdrdir/include/misc/pvpanic.h"; do
|
|
cp_portable "$i" "$output/include/standard-headers/linux"
|
|
done
|
|
mkdir -p "$output/include/standard-headers/drm"
|
|
cp_portable "$hdrdir/include/drm/drm_fourcc.h" \
|
|
"$output/include/standard-headers/drm"
|
|
|
|
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"
|