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Re: [PATCH v6 1/2] xen: asm-generic support
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 7 Sep 2023 12:48:25 +0200
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- Cc: Anthony PERARD <anthony.perard@xxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 07 Sep 2023 10:48:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 07.09.2023 11:32, Oleksii Kurochko wrote:
> --- /dev/null
> +++ b/xen/scripts/Makefile.asm-generic
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +# include/asm-generic contains a lot of files that are used
> +# verbatim by several architectures.
> +#
> +# This Makefile reads the file arch/$(SRCARCH)/include/asm/Makefile
> +# and for each file listed in this file with generic-y creates
> +# a small wrapper file in arch/$(SRCARCH)/include/generated/asm.
> +
> +PHONY := all
> +all:
> +
> +src := $(subst /generated,,$(obj))
> +
> +include $(srctree)/scripts/Kbuild.include
> +-include $(src)/Makefile
With the definition of src above, is this correct for out-of-tree builds?
You want to reference the Makefile in the source tree, ...
> +redundant := $(filter $(mandatory-y) $(generated-y), $(generic-y))
> +redundant += $(foreach f, $(generic-y), $(if $(wildcard
> $(srctree)/$(src)/$(f)),$(f)))
... much like $(srctree) is used here (and similarly again further down).
Jan
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