Re: [Qemu-devel] hw/Makefile.objs question

[Alexey Kardashevskiy <aik@ozlabs.ru>]

On 21/06/12 20:36, Andreas Färber wrote:
> Am 21.06.2012 05:22, schrieb Alexey Kardashevskiy:
>> I am trying to compile the very last qemu with vfio_pci enabled. VFIO_PCI is added as below:
>>
>> ./configure:
>>
>>  case "$target_arch2" in
>>   i386|x86_64|ppc64)
>>      if test "$vfio_pci" = "yes" -a "$target_softmmu" = "yes" ; then
>>        echo "CONFIG_VFIO_PCI=y" >> $config_target_mak
>>      fi
>>  esac
>>
>>
>> ./Makefile.target:
>>
>>  # VFIO PCI device assignment
>> obj-$(CONFIG_VFIO_PCI) += vfio_pci.o
>>
>>
>> And it worked before. However it does not anymore as it seems that everything in hw/ (and vfio_pci.c
>> as well as is in hw/ and it is a device) can be only compiled via hw/Makefile.objs and
>> hw/ppc/Makefile.objs (my platform is POWER), it is ignored if to keep it as is.
>>
>> So I have to move "obj-$(CONFIG_VFIO_PCI) += vfio_pci.o" to hw/Makefile.objs (and change obj- to
>> hw-obj-) but the hw/Makefile.objs does not include (directly or indirectly) generated
>> ppc64-softmmu/config-target.mak with CONFIG_VFIO_PCI=y.
>>
>> What is the correct solution?
> 
> If the file compiles the same for all three, put CONFIG_VFIO_PCI=y into
> default-configs/{i386,x86_64,ppc64}-softmmu.mak and do
> hw-obj-$(CONFIG_VFIO_PCI) += in hw/Makefile.objs.


It only compiles with ./configure --enable-vfio-pci which may or may not set CONFIG_VFIO_PCI to "y".
Your proposal makes it always "y" (for selected platforms).


> Otherwise, add to hw/{i386,ppc}/Makefile.objs - or with Anthony's
> proposal from yesterday hw/Makefile.objs becomes possible, too.

Again, it will be unconditional "y".



-- 
Alexey