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authorArnd Bergmann <arnd@arndb.de>2021-03-23 15:48:36 +0300
committerIngo Molnar <mingo@kernel.org>2021-03-23 18:36:01 +0300
commit9fcb51c14da2953de585c5c6e50697b8a6e91a7b (patch)
tree164dd5f522b595240662ab1105db300271e01cf3 /arch/x86
parent8249d17d3194eac064a8ca5bc5ca0abc86feecde (diff)
downloadlinux-9fcb51c14da2953de585c5c6e50697b8a6e91a7b.tar.xz
x86/build: Turn off -fcf-protection for realmode targets
The new Ubuntu GCC packages turn on -fcf-protection globally, which causes a build failure in the x86 realmode code: cc1: error: ‘-fcf-protection’ is not compatible with this target Turn it off explicitly on compilers that understand this option. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210323124846.1584944-1-arnd@kernel.org
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 2d6d5a28c3bf..9a85eae37b17 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -27,7 +27,7 @@ endif
REALMODE_CFLAGS := -m16 -g -Os -DDISABLE_BRANCH_PROFILING \
-Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
-fno-strict-aliasing -fomit-frame-pointer -fno-pic \
- -mno-mmx -mno-sse
+ -mno-mmx -mno-sse $(call cc-option,-fcf-protection=none)
REALMODE_CFLAGS += -ffreestanding
REALMODE_CFLAGS += -fno-stack-protector