Ping: [XEN PATCH v10 7/7] build: adding out-of-tree support to the xen build

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Hi Ross,

Could you also ack this livpatch change?

Thanks.

On Tue, Mar 22, 2022 at 11:22:38AM +0000, Anthony PERARD wrote:
> This implement out-of-tree support, there's two ways to create an
> out-of-tree build tree (after that, `make` in that new directory
> works):
>     make O=build
>     mkdir build; cd build; make -f ../Makefile
> also works with an absolute path for both.
> 
> This implementation only works if the source tree is clean, as we use
> VPATH.
> 
> This patch copies most new code with handling out-of-tree build from
> Linux v5.12.
> 
> Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
> Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
> Reviewed-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
> Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
> Tested-by: Julien Grall <jgrall@xxxxxxxxxx>
> ---
[...]
> diff --git a/xen/test/livepatch/Makefile b/xen/test/livepatch/Makefile
> index ddb07371315e..c258ab0b5940 100644
> --- a/xen/test/livepatch/Makefile
> +++ b/xen/test/livepatch/Makefile
> @@ -11,6 +11,8 @@ endif
>  CODE_ADDR=$(shell nm --defined $(1) | grep $(2) | awk '{print "0x"$$1}')
>  CODE_SZ=$(shell nm --defined -S $(1) | grep $(2) | awk '{ print "0x"$$2}')
>  
> +CFLAGS-y += -iquote $(obj)
> +
>  extra-y += xen_hello_world.livepatch
>  xen_hello_world-objs := xen_hello_world_func.o xen_hello_world.o note.o 
> xen_note.o modinfo.o
>  $(obj)/xen_hello_world.o: $(obj)/config.h

-- 
Anthony PERARD