x86/realmode: build with -D__DISABLE_EXPORTS

Commit 156ff4a544ae ("x86/ibt: Base IBT bits") added this option when
building realmode in order to disable IBT there. This is also needed in
order to disable return thunks.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 05f5d28b75eb73fde578a2a40dac8304913a648a..1f796050c6ddefe611ea33cb3a13f29ba1668a2b 100644 (file)
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -31,7 +31,7 @@ endif
 CODE16GCC_CFLAGS := -m32 -Wa,$(srctree)/arch/x86/boot/code16gcc.h
 M16_CFLAGS      := $(call cc-option, -m16, $(CODE16GCC_CFLAGS))
 
-REALMODE_CFLAGS        := $(M16_CFLAGS) -g -Os -DDISABLE_BRANCH_PROFILING \
+REALMODE_CFLAGS        := $(M16_CFLAGS) -g -Os -DDISABLE_BRANCH_PROFILING -D__DISABLE_EXPORTS \
                   -Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
                   -fno-strict-aliasing -fomit-frame-pointer -fno-pic \
                   -mno-mmx -mno-sse $(call cc-option,-fcf-protection=none)