This is done to access fdt library function which are required for adding device
tree overlay nodes for dynamic programming of nodes.

Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Acked-by: Julien Grall <jgrall@amazon.com>
---
 xen/common/libfdt/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/common/libfdt/Makefile b/xen/common/libfdt/Makefile
index 75aaefa2e3..d50487aa6e 100644
--- a/xen/common/libfdt/Makefile
+++ b/xen/common/libfdt/Makefile
@@ -1,7 +1,11 @@
 include $(src)/Makefile.libfdt
 
 SECTIONS := text data $(SPECIAL_DATA_SECTIONS)
+
+# For CONFIG_OVERLAY_DTB, libfdt functionalities will be needed during runtime.
+ifneq ($(CONFIG_OVERLAY_DTB),y)
 OBJCOPYFLAGS := $(foreach s,$(SECTIONS),--rename-section .$(s)=.init.$(s))
+endif
 
 obj-y += libfdt.o
 nocov-y += libfdt.o
-- 
2.17.1

On 02.06.2023 02:48, Vikram Garhwal wrote:
> --- a/xen/common/libfdt/Makefile
> +++ b/xen/common/libfdt/Makefile
> @@ -1,7 +1,11 @@
>  include $(src)/Makefile.libfdt
>  
>  SECTIONS := text data $(SPECIAL_DATA_SECTIONS)
> +
> +# For CONFIG_OVERLAY_DTB, libfdt functionalities will be needed during runtime.
> +ifneq ($(CONFIG_OVERLAY_DTB),y)
>  OBJCOPYFLAGS := $(foreach s,$(SECTIONS),--rename-section .$(s)=.init.$(s))
> +endif

I have to admit that I find this odd: While it may be the least intrusive
change, why do the objcopy step at all in this case?

Jan