| #!/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" |