On 09/03/2021 07:28, Michal Orzel wrote:


On 08.03.2021 15:26, Jan Beulich wrote:
On 08.03.2021 14:59, Michal Orzel wrote:
--- a/xen/arch/arm/Makefile
+++ b/xen/arch/arm/Makefile
@@ -68,7 +68,7 @@ extra-y += $(TARGET_SUBARCH)/head.o
#obj-bin-y += ....o -ifdef CONFIG_DTB_FILE
+ifneq ($(CONFIG_DTB_FILE),"")
  obj-y += dtb.o
  AFLAGS-y += -DCONFIG_DTB_FILE=\"$(CONFIG_DTB_FILE)\"
  endif

Right now what I have for my Arm test builds is an unquoted
string in ./.config, e.g.:

CONFIG_DTB_FILE:=/usr/local/arm-linux-gnueabi/vexpress-v2p-aem-v7a.dtb

While I suppose you've tested that the resulting quoting is still
okay, to reduce confusion perhaps the AFLAGS-y line would better
be changed to

AFLAGS-y += '-DCONFIG_DTB_FILE=$(CONFIG_DTB_FILE)'

It is tested. I can change it to:
AFLAGS-y += -DCONFIG_DTB_FILE='$(CONFIG_DTB_FILE)'
as the -DCONFIG_DTB_FILE= does not need to be within quotes

May I ask why do we need to keep the AFLAGS-y? Wouldn't Kconfig define it in an header with all the other config option?

Cheers,

--
Julien Grall

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