build,arm: Fix deps check of head.o
authorAnthony PERARD <anthony.perard@citrix.com>
Tue, 31 Mar 2020 10:30:47 +0000 (11:30 +0100)
committerJulien Grall <jgrall@amazon.com>
Wed, 1 Apr 2020 09:49:49 +0000 (10:49 +0100)
commitdc0b3eb56b9ce3e2b61f0c7d3af5a98b5a586099
treeb03b3379c597215b9f9ae1e8cf11d0eae4ff735c
parentf41eb7ba3e5070b4a7a4f54cac236bf9ff93d798
build,arm: Fix deps check of head.o

arm*/head.o isn't in obj-y or extra-y, so make don't load the
associated .*.d file (or .*.cmd file when if_changed will be used).
There is a workaround where .*.d file is added manually into DEPS.

Changing DEPS isn't needed, we can simply add head.o into extra-y and
the dependency files will be loaded.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Julien Grall <jgrall@amazon.com>
xen/arch/arm/Makefile