[PATCH 1/4] Use an include/boot directory to override headers for boot code

[Frediano Ziglio <frediano.ziglio@xxxxxxxxx>]

Not all headers can be used by 32 bit boot code.
Allows to override some headers, we don't want to mess up with
main headers as most of the code is only 64 bit so the easy stuff should
be done for 64 bit declarations.
Boot headers should be 64 bit compatibles to avoid having multiple
declarations.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
---
 xen/arch/x86/boot/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/boot/Makefile b/xen/arch/x86/boot/Makefile
index d457876659..13d4583173 100644
--- a/xen/arch/x86/boot/Makefile
+++ b/xen/arch/x86/boot/Makefile
@@ -18,7 +18,7 @@ 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 -mregparm=3
 CFLAGS_x86_32 += -nostdinc -include $(filter 
%/include/xen/config.h,$(XEN_CFLAGS))
-CFLAGS_x86_32 += $(filter -I% -O%,$(XEN_CFLAGS)) -D__XEN__
+CFLAGS_x86_32 += -I$(srctree)/arch/x86/include/boot $(filter -I% 
-O%,$(XEN_CFLAGS)) -D__XEN__
 
 # override for 32bit binaries
 $(obj32): CFLAGS_stack_boundary :=
-- 
2.34.1