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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Mon, 4 Feb 2019 20:04:10 +0100
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Subject: Re: [Qemu-devel] [PATCH 33/52] build: switch to Kconfig
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To: Anthony PERARD <anthony.perard@citrix.com>, =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= <philmd@redhat.com>
Cc: qemu-devel@nongnu.org, Stefano Stabellini <sstabellini@kernel.org>, Paul Durrant <paul.durrant@citrix.com>, yang.zhong@intel.com, thuth@redhat.com

On 04/02/19 16:45, Anthony PERARD wrote:
> I've tested the series, and here is the first issue:
>   CC      hw/9pfs/xen-9p-backend.o
>   LINK    i386-softmmu/qemu-system-i386
> /usr/bin/ld: ../hw/xen/xen-legacy-backend.o: in function `xen_be_register_common':
> xen-legacy-backend.c:(.text+0x1cb6): undefined reference to `xen_9pfs_ops'
> 
> The `struct xen_9pfs_ops` is in "xen-9p-backend", so it's built, but
> link time still fails.

Ok, I'll take a look.  My Xen builds were broken until recently.

> Building QEMU with --disable-virtfs works. (Same as commenting out the
> line that uses xen_9pfs_ops in xen-legacy-backend.) Part of the other
> options I have for configure: --enable-xen --target-list=i386-softmmu
> --disable-user --cpu=x86_64
> 
> 
> I did also other build tests and one without --target-list, and that
> fails, but not because of xen:
> $ ./configure --enable-xen
> ...
> $ make
> ...
>   GEN     aarch64-softmmu/config-devices.mak.tmp
>   GEN     alpha-softmmu/config-devices.mak.tmp
>   GEN     arm-softmmu/config-devices.mak.tmp
>   GEN     cris-softmmu/config-devices.mak.tmp
>   GEN     hppa-softmmu/config-devices.mak.tmp
>   GEN     i386-softmmu/config-devices.mak.tmp
>   GEN     lm32-softmmu/config-devices.mak.tmp
>   GEN     m68k-softmmu/config-devices.mak.tmp
>   GEN     microblaze-softmmu/config-devices.mak.tmp
> undefined symbol ARMSSE_CPUID
> undefined symbol ARMSSE

This is just a rebasing issue, the patches are based on an older master
that didn't have the symbols.

Paiolo