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[xen master] x86/boot: Fix include paths for 32bit objects



commit 5f36fab2406299bd2c54074d81fe482af11fb2b9
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue Sep 3 11:41:56 2024 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Sep 3 15:51:14 2024 +0100

    x86/boot: Fix include paths for 32bit objects
    
    Most of Xen is build using -nostdinc and a fully specified include path.
    However, the makefile line:
    
      $(head-bin-objs): XEN_CFLAGS := $(CFLAGS_x86_32) -fpic
    
    discards XEN_CFLAGS and replaces them with CFLAGS_x86_32.
    
    Reinstate -nostdinc, and copy the -include and all -I arguments from
    XEN_CFLAGS.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
 xen/arch/x86/boot/Makefile | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/boot/Makefile b/xen/arch/x86/boot/Makefile
index 03d8ce3a9e..de47740277 100644
--- a/xen/arch/x86/boot/Makefile
+++ b/xen/arch/x86/boot/Makefile
@@ -14,10 +14,8 @@ $(obj)/head.o: $(head-bin-objs:.o=.bin)
 CFLAGS_x86_32 := $(subst -m64,-m32 -march=i686,$(XEN_TREEWIDE_CFLAGS))
 $(call cc-options-add,CFLAGS_x86_32,CC,$(EMBEDDED_EXTRA_CFLAGS))
 CFLAGS_x86_32 += -Werror -fno-builtin -g0 -msoft-float
-ifneq ($(abs_objtree),$(abs_srctree))
-CFLAGS_x86_32 += -I$(objtree)/include
-endif
-CFLAGS_x86_32 += -I$(srctree)/include
+CFLAGS_x86_32 += -nostdinc -include $(filter 
%/include/xen/config.h,$(XEN_CFLAGS))
+CFLAGS_x86_32 += $(filter -I%,$(XEN_CFLAGS))
 
 # override for 32bit binaries
 $(head-bin-objs): CFLAGS_stack_boundary :=
--
generated by git-patchbot for /home/xen/git/xen.git#master



 


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