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#!/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/__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; do
cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch"
done
if [ $arch = mips ]; then
cp "$tmpdir/include/asm/sgidefs.h" "$output/linux-headers/asm-mips/"
fi
rm -rf "$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 [ $arch = x86 ]; then
cp "$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"
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; do
cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
done
rm -rf "$output/linux-headers/asm-generic"
mkdir -p "$output/linux-headers/asm-generic"
for header in unistd.h bitsperlong.h; do
cp "$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" "$output/linux-headers"
fi
cat <<EOF >$output/linux-headers/linux/virtio_config.h
#include "standard-headers/linux/virtio_config.h"
EOF
cat <<EOF >$output/linux-headers/linux/virtio_ring.h
#include "standard-headers/linux/virtio_ring.h"
EOF
rm -rf "$output/include/standard-headers/linux"
mkdir -p "$output/include/standard-headers/linux"
for i in "$tmpdir"/include/linux/*virtio*.h "$tmpdir/include/linux/input.h" \
"$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/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"
|
