[xen staging] build: handle always-y and hostprogs-always-y

[patchbot@xxxxxxx]

commit 446108a1bb55dcbff395c183278507d3c506e69e
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Fri Feb 25 11:04:42 2022 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Feb 25 11:04:42 2022 +0100

    build: handle always-y and hostprogs-always-y
    
    This will be used for xen/tools/.
    
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/Rules.mk               | 10 +++++++++-
 xen/scripts/Makefile.clean |  3 ++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/xen/Rules.mk b/xen/Rules.mk
index 13c1943da9..5f2368805b 100644
--- a/xen/Rules.mk
+++ b/xen/Rules.mk
@@ -78,9 +78,17 @@ else
 obj-y    := $(filter-out %/, $(obj-y))
 endif
 
+# hostprogs-always-y += foo
+# ... is a shorthand for
+# hostprogs-y += foo
+# always-y  += foo
+hostprogs-y += $(hostprogs-always-y)
+always-y += $(hostprogs-always-y)
+
 # Add subdir path
 
 extra-y         := $(addprefix $(obj)/,$(extra-y))
+always-y        := $(addprefix $(obj)/,$(always-y))
 targets         := $(addprefix $(obj)/,$(targets))
 lib-y           := $(addprefix $(obj)/,$(lib-y))
 obj-y           := $(addprefix $(obj)/,$(obj-y))
@@ -283,7 +291,7 @@ targets += $(call intermediate_targets, .init.o, .o) \
 # Build
 # ---------------------------------------------------------------------------
 
-__build: $(targets-for-builtin) $(subdir-y)
+__build: $(targets-for-builtin) $(subdir-y) $(always-y)
        @:
 
 # Descending
diff --git a/xen/scripts/Makefile.clean b/xen/scripts/Makefile.clean
index 156d6307cf..c2689d4af5 100644
--- a/xen/scripts/Makefile.clean
+++ b/xen/scripts/Makefile.clean
@@ -18,7 +18,8 @@ subdir-all := $(subdir-y) $(subdir-n) $(subdir-) \
               $(patsubst %/,%, $(filter %/, $(obj-y) $(obj-n) $(obj-)))
 
 __clean-files := \
-    $(clean-files) $(hostprogs-y) $(hostprogs-)
+    $(clean-files) $(hostprogs-y) $(hostprogs-) \
+    $(hostprogs-always-y) $(hostprogs-always-)
 
 __clean-files := $(wildcard $(__clean-files))
 
--
generated by git-patchbot for /home/xen/git/xen.git#staging