hw/arm/virt: parameter passing cleanups
[qemu.git] / scripts / update-linux-headers.sh
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
13 tmpdir=$(mktemp -d)
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
31 cp_portable() {
32 f=$1
33 to=$2
34 if
35 grep '#include' "$f" | grep -v -e 'linux/virtio' \
36 -e 'linux/types' \
37 -e 'stdint' \
38 -e 'linux/if_ether' \
39 -e 'input-event-codes' \
40 -e 'sys/' \
41 > /dev/null
42 then
43 echo "Unexpected #include in input file $f".
44 exit 2
45 fi
46
47 header=$(basename "$f");
48 sed -e 's/__u\([0-9][0-9]*\)/uint\1_t/g' \
49 -e 's/__s\([0-9][0-9]*\)/int\1_t/g' \
50 -e 's/__le\([0-9][0-9]*\)/uint\1_t/g' \
51 -e 's/__be\([0-9][0-9]*\)/uint\1_t/g' \
52 -e 's/"\(input-event-codes\.h\)"/"standard-headers\/linux\/\1"/' \
53 -e 's/<linux\/\([^>]*\)>/"standard-headers\/linux\/\1"/' \
54 -e 's/__bitwise__//' \
55 -e 's/__attribute__((packed))/QEMU_PACKED/' \
56 -e 's/__inline__/inline/' \
57 -e '/sys\/ioctl.h/d' \
58 -e 's/SW_MAX/SW_MAX_/' \
59 "$f" > "$to/$header";
60 }
61
62 # This will pick up non-directories too (eg "Kconfig") but we will
63 # ignore them in the next loop.
64 ARCHLIST=$(cd "$linux/arch" && echo *)
65
66 for arch in $ARCHLIST; do
67 # Discard anything which isn't a KVM-supporting architecture
68 if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] &&
69 ! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then
70 continue
71 fi
72
73 # Blacklist architectures which have KVM headers but are actually dead
74 if [ "$arch" = "ia64" -o "$arch" = "mips" ]; then
75 continue
76 fi
77
78 make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install
79
80 rm -rf "$output/linux-headers/asm-$arch"
81 mkdir -p "$output/linux-headers/asm-$arch"
82 for header in kvm.h kvm_para.h unistd.h; do
83 cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch"
84 done
85 if [ $arch = powerpc ]; then
86 cp "$tmpdir/include/asm/epapr_hcalls.h" "$output/linux-headers/asm-powerpc/"
87 fi
88
89 rm -rf "$output/include/standard-headers/asm-$arch"
90 mkdir -p "$output/include/standard-headers/asm-$arch"
91 if [ $arch = s390 ]; then
92 cp_portable "$tmpdir/include/asm/kvm_virtio.h" "$output/include/standard-headers/asm-s390/"
93 cp_portable "$tmpdir/include/asm/virtio-ccw.h" "$output/include/standard-headers/asm-s390/"
94 fi
95 if [ $arch = x86 ]; then
96 cp_portable "$tmpdir/include/asm/hyperv.h" "$output/include/standard-headers/asm-x86/"
97 cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-x86/"
98 cp "$tmpdir/include/asm/unistd_x32.h" "$output/linux-headers/asm-x86/"
99 cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-x86/"
100 fi
101 done
102
103 rm -rf "$output/linux-headers/linux"
104 mkdir -p "$output/linux-headers/linux"
105 for header in kvm.h kvm_para.h vfio.h vhost.h \
106 psci.h userfaultfd.h; do
107 cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
108 done
109 rm -rf "$output/linux-headers/asm-generic"
110 mkdir -p "$output/linux-headers/asm-generic"
111 for header in kvm_para.h; do
112 cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic"
113 done
114 if [ -L "$linux/source" ]; then
115 cp "$linux/source/COPYING" "$output/linux-headers"
116 else
117 cp "$linux/COPYING" "$output/linux-headers"
118 fi
119
120 cat <<EOF >$output/linux-headers/asm-x86/hyperv.h
121 #include "standard-headers/asm-x86/hyperv.h"
122 EOF
123 cat <<EOF >$output/linux-headers/linux/virtio_config.h
124 #include "standard-headers/linux/virtio_config.h"
125 EOF
126 cat <<EOF >$output/linux-headers/linux/virtio_ring.h
127 #include "standard-headers/linux/virtio_ring.h"
128 EOF
129
130 rm -rf "$output/include/standard-headers/linux"
131 mkdir -p "$output/include/standard-headers/linux"
132 for i in "$tmpdir"/include/linux/*virtio*.h "$tmpdir/include/linux/input.h" \
133 "$tmpdir/include/linux/input-event-codes.h" \
134 "$tmpdir/include/linux/pci_regs.h"; do
135 cp_portable "$i" "$output/include/standard-headers/linux"
136 done
137
138 cat <<EOF >$output/include/standard-headers/linux/types.h
139 /* For QEMU all types are already defined via osdep.h, so this
140 * header does not need to do anything.
141 */
142 EOF
143 cat <<EOF >$output/include/standard-headers/linux/if_ether.h
144 #define ETH_ALEN 6
145 EOF
146
147 rm -rf "$tmpdir"