[PATCH] powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU

Nicholas Piggin npiggin at gmail.com
Fri Apr 7 14:09:09 AEST 2023

-mcpu=power10 will generate prefixed and pcrel code by default, which
we do not support. The general kernel disables these with cflags, but
those were missed for the boot wrapper.

Reported-by: Danny Tsen <dtsen at linux.ibm.com>
Fixes: 4b2a9315f20d9 ("powerpc/64s: POWER10 CPU Kconfig build option")
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
 arch/powerpc/boot/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 295f76df13b5..13fad4f0a6d8 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -34,6 +34,8 @@ endif
 BOOTCFLAGS    := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		 -fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \
+		 $(call cc-option,-mno-prefixed) $(call cc-option,-mno-pcrel) \
+		 $(call cc-option,-mno-mma) \
 		 $(call cc-option,-mno-spe) $(call cc-option,-mspe=no) \
 		 -pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \

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