[Xen-devel] [PATCH for-xen-4.5 v4 02/18] x86/boot: fix reloc.S build dependencies

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

reloc.S is not rebuild if header included
in reloc.c is updated. Fix this issue.

Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
---
 xen/arch/x86/boot/Makefile   |    6 +++++-
 xen/arch/x86/boot/build32.mk |    3 ++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/boot/Makefile b/xen/arch/x86/boot/Makefile
index 13f4a66..3cab36a 100644
--- a/xen/arch/x86/boot/Makefile
+++ b/xen/arch/x86/boot/Makefile
@@ -1,8 +1,12 @@
 obj-bin-y += head.o
 
+RELOC_DEPS = $(BASEDIR)/include/asm-x86/config.h 
$(BASEDIR)/include/xen/multiboot.h
+
+export RELOC_DEPS
+
 head.o: reloc.S
 
 %.S: %.c
        $(MAKE) -f build32.mk $@
 
-reloc.S: head.S
+reloc.S: $(RELOC_DEPS)
diff --git a/xen/arch/x86/boot/build32.mk b/xen/arch/x86/boot/build32.mk
index a36f620..809f296 100644
--- a/xen/arch/x86/boot/build32.mk
+++ b/xen/arch/x86/boot/build32.mk
@@ -30,5 +30,6 @@ CFLAGS := $(filter-out -flto,$(CFLAGS))
                        esac; \
                done
 
-reloc.o: $(BASEDIR)/include/asm-x86/config.h
+reloc.o: $(RELOC_DEPS)
+
 .PRECIOUS: %.bin %.lnk
-- 
1.7.10.4


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