qemu/scripts/update-linux-headers.sh

3 # Update Linux kernel headers QEMU requires from a specified kernel tree.
13 # The script will copy the headers into two target folders:
15 # - linux-headers/ for files that are required for compiling for a
17 #   and defines that are more recent than the headers that might be
19 #   file copies for these headers.
21 # - include/standard-headers/ for files that are used for guest
24 #   kernel headers, but we need those definitions regardless of which
26 #   sanitize the headers to remove any use of Linux-specifics such as
30 hdrdir="$tmpdir/headers"
37 usage: update-kernel-headers.sh LINUX_PATH [OUTPUT_PATH]
39 LINUX_PATH      Linux kernel directory to obtain the headers from
76         # Let users of include/standard-headers/linux/ headers pick the
80         arch_cmd='s/<asm\/\([^>]*\)>/"standard-headers\/asm-'$arch'\/\1"/'
89         -e 's/"\(input-event-codes\.h\)"/"standard-headers\/linux\/\1"/' \
90         -e 's/<linux\/\([^>]*\)>/"standard-headers\/linux\/\1"/' \
128     rm -rf "$output/linux-headers/asm-$arch"
129     mkdir -p "$output/linux-headers/asm-$arch"
132             cp "$hdrdir/include/asm/$header" "$output/linux-headers/asm-$arch"
135             cat <<EOF >$output/linux-headers/asm-$arch/$header
142         cp "$hdrdir/include/asm/sgidefs.h" "$output/linux-headers/asm-mips/"
143         cp "$hdrdir/include/asm/unistd_o32.h" "$output/linux-headers/asm-mips/"
144         cp "$hdrdir/include/asm/unistd_n32.h" "$output/linux-headers/asm-mips/"
145         cp "$hdrdir/include/asm/unistd_n64.h" "$output/linux-headers/asm-mips/"
148         cp "$hdrdir/include/asm/unistd_32.h" "$output/linux-headers/asm-powerpc/"
149         cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-powerpc/"
152     rm -rf "$output/include/standard-headers/asm-$arch"
153     mkdir -p "$output/include/standard-headers/asm-$arch"
155         cp_portable "$hdrdir/include/asm/virtio-ccw.h" "$output/include/standard-headers/asm-s390/"
156         cp "$hdrdir/include/asm/unistd_32.h" "$output/linux-headers/asm-s390/"
157         cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-s390/"
160         cp "$hdrdir/include/asm/unistd-eabi.h" "$output/linux-headers/asm-arm/"
161         cp "$hdrdir/include/asm/unistd-oabi.h" "$output/linux-headers/asm-arm/"
162         cp "$hdrdir/include/asm/unistd-common.h" "$output/linux-headers/asm-arm/"
165         cp "$hdrdir/include/asm/sve_context.h" "$output/linux-headers/asm-arm64/"
166         cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-arm64/"
169         cp "$hdrdir/include/asm/unistd_32.h" "$output/linux-headers/asm-x86/"
170         cp "$hdrdir/include/asm/unistd_x32.h" "$output/linux-headers/asm-x86/"
171         cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-x86/"
173         cp_portable "$hdrdir/include/asm/kvm_para.h" "$output/include/standard-headers/asm-$arch"
174         cat <<EOF >$output/linux-headers/asm-$arch/kvm_para.h
175 #include "standard-headers/asm-$arch/kvm_para.h"
179         # unnecessary import of several video/ist/etc headers
183                     "$output/include/standard-headers/asm-$arch"
185                     "$output/include/standard-headers/asm-x86"
188         cp "$hdrdir/include/asm/ptrace.h" "$output/linux-headers/asm-riscv/"
189         cp "$hdrdir/include/asm/unistd_32.h" "$output/linux-headers/asm-riscv/"
190         cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-riscv/"
193         cp "$hdrdir/include/asm/kvm_para.h" "$output/linux-headers/asm-loongarch/"
194         cp "$hdrdir/include/asm/unistd_64.h" "$output/linux-headers/asm-loongarch/"
199 rm -rf "$output/linux-headers/linux"
200 mkdir -p "$output/linux-headers/linux"
204     cp "$hdrdir/include/linux/$header" "$output/linux-headers/linux"
207 rm -rf "$output/linux-headers/asm-generic"
208 mkdir -p "$output/linux-headers/asm-generic"
210     cp "$hdrdir/include/asm-generic/$header" "$output/linux-headers/asm-generic"
214     cp "$linux/source/COPYING" "$output/linux-headers"
216     cp "$linux/COPYING" "$output/linux-headers"
221 # are referred to by SPDX lines in the headers we currently copy.
225     mkdir -p "$output/linux-headers/LICENSES/preferred" \
226              "$output/linux-headers/LICENSES/exceptions"
229         cp "$linux/LICENSES/$l" "$output/linux-headers/LICENSES/$l"
233 cat <<EOF >$output/linux-headers/linux/kvm_para.h
234 #include "standard-headers/linux/kvm_para.h"
237 cat <<EOF >$output/linux-headers/linux/virtio_config.h
238 #include "standard-headers/linux/virtio_config.h"
240 cat <<EOF >$output/linux-headers/linux/virtio_ring.h
241 #include "standard-headers/linux/virtio_ring.h"
243 cat <<EOF >$output/linux-headers/linux/vhost_types.h
244 #include "standard-headers/linux/vhost_types.h"
247 rm -rf "$output/include/standard-headers/linux"
248 mkdir -p "$output/include/standard-headers/linux"
262     cp_portable "$i" "$output/include/standard-headers/linux"
264 mkdir -p "$output/include/standard-headers/misc"
266             "$output/include/standard-headers/misc"
267 mkdir -p "$output/include/standard-headers/drm"
269             "$output/include/standard-headers/drm"
271 cat <<EOF >$output/include/standard-headers/linux/types.h
276 cat <<EOF >$output/include/standard-headers/linux/if_ether.h