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authorJan Kiszka <jan.kiszka@siemens.com>2011-06-08 18:22:17 +0200
committerMarcelo Tosatti <mtosatti@redhat.com>2011-06-20 15:12:22 -0300
commit87fdd47668895c2eb968000aa82eaa3b2cbaff63 (patch)
tree8a0d1acdd02b565055527f76e2e1808d0eeb7071 /scripts
parent42cc8fa620cbc73e349e96d84cf46469e828ec34 (diff)
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Add kernel header update script
This helper pulls the required kernel headers for KVM and vhost into a specified directory. The update is triggered via scripts/update-linux-headers.sh LINUX_PATH and will place the output under linux-headers/linux and linux-headers/asm-*. It also imports the COPYING to care for headers without an explicit license. CC: Alexander Graf <agraf@suse.de> CC: Christoph Hellwig <hch@lst.de> CC: Peter Maydell <peter.maydell@linaro.org> CC: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/update-linux-headers.sh55
1 files changed, 55 insertions, 0 deletions
diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
new file mode 100755
index 0000000..9d2a4bc
--- /dev/null
+++ b/scripts/update-linux-headers.sh
@@ -0,0 +1,55 @@
+#!/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="$PWD"
+fi
+
+for arch in x86 powerpc s390; do
+ make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install
+
+ rm -rf "$output/linux-headers/asm-$arch"
+ mkdir -p "$output/linux-headers/asm-$arch"
+ for header in kvm.h kvm_para.h; do
+ cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch"
+ done
+ if [ $arch = x86 ]; then
+ cp "$tmpdir/include/asm/hyperv.h" "$output/linux-headers/asm-x86"
+ fi
+done
+
+rm -rf "$output/linux-headers/linux"
+mkdir -p "$output/linux-headers/linux"
+for header in kvm.h kvm_para.h vhost.h virtio_config.h virtio_ring.h; do
+ cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
+done
+if [ -L "$linux/source" ]; then
+ cp "$linux/source/COPYING" "$output/linux-headers"
+else
+ cp "$linux/COPYING" "$output/linux-headers"
+fi
+
+rm -rf "$tmpdir"