[Xen-devel] [XEN PATCH v3 21/23] xen/build: Use if_changed for prelink*.o

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

We change the dependencies of prelink-efi.o so that we can use the
same command line. The dependency on efi/built_in.o isn't needed
because, we already have:
    efi/*.o: efi/built_in.o
to build efi/*.o files that prelink-efi.o needs.

Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 xen/arch/x86/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/Makefile b/xen/arch/x86/Makefile
index 1be94846e11f..55c6ae8ce0d2 100644
--- a/xen/arch/x86/Makefile
+++ b/xen/arch/x86/Makefile
@@ -131,11 +131,11 @@ prelink.o: $(patsubst 
%/built_in.o,%/built_in_bin.o,$(ALL_OBJS)) prelink_lto.o
 prelink-efi.o: $(patsubst %/built_in.o,%/built_in_bin.o,$(ALL_OBJS)) 
prelink-efi_lto.o efi/boot.init.o
        $(LD) $(XEN_LDFLAGS) -r -o $@ $^
 else
-prelink.o: $(ALL_OBJS)
-       $(LD) $(XEN_LDFLAGS) -r -o $@ $^
+prelink.o: $(ALL_OBJS) FORCE
+       $(call if_changed,ld)
 
-prelink-efi.o: $(ALL_OBJS) efi/boot.init.o efi/runtime.o efi/compat.o
-       $(LD) $(XEN_LDFLAGS) -r -o $@ $(filter-out %/efi/built_in.o,$^)
+prelink-efi.o: $(filter-out %/efi/built_in.o,$(ALL_OBJS)) efi/boot.init.o 
efi/runtime.o efi/compat.o FORCE
+       $(call if_changed,ld)
 endif
 
 $(TARGET)-syms: prelink.o xen.lds
-- 
Anthony PERARD


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