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[Qemu-devel] [PATCH] update-linux-headers.sh: Don't hard code list of ar

From: Peter Maydell
Subject: [Qemu-devel] [PATCH] update-linux-headers.sh: Don't hard code list of architectures
Date: Wed, 18 Jul 2012 11:11:09 +0100

Rather than hardcoding the list of architectures in the kernel
header update script, just import headers for every architecture
which supports KVM (with a blacklist exception for ia64 which
has KVM headers but is dead). This reduces the number of QEMU
files which need to be updated to add support for a new KVM

Signed-off-by: Peter Maydell <address@hidden>
Changes v1->v2:
 * added a blacklist for ia64, to avoid noise and importing
   a pointless set of headers that will get dropped later

 scripts/update-linux-headers.sh |   16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index 9d2a4bc..57ce69f 100755
--- a/scripts/update-linux-headers.sh
+++ b/scripts/update-linux-headers.sh
@@ -28,7 +28,21 @@ if [ -z "$output" ]; then
-for arch in x86 powerpc s390; do
+# This will pick up non-directories too (eg "Kconfig") but we will
+# ignore them in the next loop.
+ARCHLIST=$(cd "$linux/arch" && echo *)
+for arch in $ARCHLIST; do
+    # Discard anything which isn't a KVM-supporting architecture
+    if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ]; then
+        continue
+    fi
+    # Blacklist architectures which have KVM headers but are actually dead
+    if [ "$arch" = "ia64" ]; then
+        continue
+    fi
     make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install
     rm -rf "$output/linux-headers/asm-$arch"

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