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63 lines
2.6 KiB
63 lines
2.6 KiB
From e185104a10a37174d13d981fa1febafbb7e651aa Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Mon, 3 Jun 2024 13:49:49 +0200
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Subject: [PATCH 050/100] update-linux-headers: fix forwarding to asm-generic
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headers
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
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RH-MergeRequest: 245: SEV-SNP support
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RH-Jira: RHEL-39544
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Bandan Das <bdas@redhat.com>
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RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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RH-Commit: [50/91] 3c98a7fe790d943bb5ff8dca1da83f5944ec3e2e (bonzini/rhel-qemu-kvm)
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Afer commit 3efc75ad9d9 ("scripts/update-linux-headers.sh: Remove
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temporary directory inbetween", 2024-05-29), updating linux-headers/
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results in errors such as
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cp: cannot stat '/tmp/tmp.1A1Eejh1UE/headers/include/asm/bitsperlong.h': No such file or directory
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because Loongarch does not have an asm/bitsperlong.h file and uses the
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generic version. Before commit 3efc75ad9d9, the missing file would
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incorrectly cause stale files to be included in linux-headers/. The files
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were never committed to qemu.git, but were wrong nevertheless. The build
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would just use the system version of the files, which is opposite to
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the idea of importing Linux header files into QEMU's tree.
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Create forwarding headers, resembling the ones that are generated during a
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kernel build by scripts/Makefile.asm-generic, if a file is only installed
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under include/asm-generic/.
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Reviewed-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit ef7c70f020ca1fe9e7c98ea2cd9d6ba3c5714716)
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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---
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scripts/update-linux-headers.sh | 9 ++++++++-
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1 file changed, 8 insertions(+), 1 deletion(-)
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diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
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index f084bee72e..78c0f2c43e 100755
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--- a/scripts/update-linux-headers.sh
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+++ b/scripts/update-linux-headers.sh
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@@ -119,7 +119,14 @@ for arch in $ARCHLIST; do
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rm -rf "$output/linux-headers/asm-$arch"
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mkdir -p "$output/linux-headers/asm-$arch"
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for header in kvm.h unistd.h bitsperlong.h mman.h; do
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- cp "$hdrdir/include/asm/$header" "$output/linux-headers/asm-$arch"
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+ if test -f "$hdrdir/include/asm/$header"; then
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+ cp "$hdrdir/include/asm/$header" "$output/linux-headers/asm-$arch"
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+ elif test -f "$hdrdir/include/asm-generic/$header"; then
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+ # not installed as <asm/$header>, but used as such in kernel sources
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+ cat <<EOF >$output/linux-headers/asm-$arch/$header
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+#include <asm-generic/$header>
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+EOF
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+ fi
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done
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if [ $arch = mips ]; then
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--
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2.39.3
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