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TOP: Allow building platform out-of-tree

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This patch extends our current build-system for building platform
sources which are not part of OpenSBI sources.

For example:

Let's say we have out-of-tree ABC platform sources. We place these
sources under <XYZ>/ABC directory along with its config.mk and
objects.mk.

To build out-of-tree ABC platform from OpenSBI directory:
$ make PLATFORM_DIR=<XYZ>/ABC
OR
$ make PLATFORM_DIR=<XYZ> PLATFORM=ABC

To build out-of-tree ABC platform from <XYZ>/ABC directory:
$ make PLATFORM_DIR=<XYZ>/ABC -C <path_to_opensbi>
OR
$ make PLATFORM_DIR=<XYZ> PLATFORM=ABC -C <path_to_opensbi>

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel
2019-04-04 11:49:43 +05:30
committed by Anup Patel
parent 40086daa62
commit 54f31e8209
4 changed files with 54 additions and 30 deletions
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2
platform/common/libfdt/objects.mk
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@@ -13,4 +13,4 @@ $(foreach file, $(libfdt_files), \
$(eval CFLAGS_$(file) = -I$(src)/../../common/libfdt))
platform-common-objs-$(PLATFORM_INCLUDE_LIBFDT) += $(addprefix libfdt/,$(libfdt_files))
platform-common-genflags-$(PLATFORM_INCLUDE_LIBFDT) += -I$(platform_common_dir)/libfdt/
platform-common-genflags-$(PLATFORM_INCLUDE_LIBFDT) += -I$(platform_common_src_dir)/libfdt/