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[Xen-changelog] [xen staging] x86: fix race to build arch/x86/efi/relocs-dummy.o



commit 65d104984c04e69234f77bd3b8f8c0ef85b3f7fa
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Fri Nov 15 14:18:16 2019 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Nov 15 14:18:16 2019 +0100

    x86: fix race to build arch/x86/efi/relocs-dummy.o
    
    With $(TARGET).efi depending on efi/relocs-dummy.o, arch/x86/Makefile
    will attempt to build that object. This may result in a dependency file
    being generated that has relocs-dummy.o depending on efi/relocs-dummy.S.
    
    Then, when arch/x86/efi/Makefile tries to build relocs-dummy.o, well
    efi/relocs-dummy.S doesn't exist.
    
    Have only one makefile responsible for building relocs-dummy.o.
    
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/arch/x86/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/Makefile b/xen/arch/x86/Makefile
index 5e6b9d7028..a6df19e901 100644
--- a/xen/arch/x86/Makefile
+++ b/xen/arch/x86/Makefile
@@ -219,8 +219,8 @@ $(TARGET).efi: prelink-efi.o $(note_file) efi.lds 
efi/relocs-dummy.o efi/mkreloc
                | $(BASEDIR)/tools/symbols --xensyms --sysv --sort 
>$(@D)/$(@F).map; fi
        rm -f $(@D)/.$(@F).[0-9]* $(@D)/..$(@F).[0-9]*
 
-efi/boot.init.o efi/runtime.o efi/compat.o efi/buildid.o: 
$(BASEDIR)/arch/x86/efi/built_in.o
-efi/boot.init.o efi/runtime.o efi/compat.o efi/buildid.o: ;
+efi/boot.init.o efi/runtime.o efi/compat.o efi/buildid.o efi/relocs-dummy.o: 
$(BASEDIR)/arch/x86/efi/built_in.o
+efi/boot.init.o efi/runtime.o efi/compat.o efi/buildid.o efi/relocs-dummy.o: ;
 
 asm-offsets.s: $(TARGET_SUBARCH)/asm-offsets.c 
$(BASEDIR)/include/asm-x86/asm-macros.h
        $(CC) $(filter-out -Wa$(comma)% -flto,$(CFLAGS)) -S -o $@ $<
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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