Commit 110a58b9 authored Aug 27, 2022 by Pali Rohár Committed by Michael Ellerman Sep 28, 2022

powerpc/boot: Explicitly disable usage of SPE instructions



uImage boot wrapper should not use SPE instructions, like kernel itself.
Boot wrapper has already disabled Altivec and VSX instructions but not SPE.
Options -mno-spe and -mspe=no already set when compilation of kernel, but
not when compiling uImage wrapper yet. Fix it.

Cc: stable@vger.kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220827134454.17365-1-pali@kernel.org

parent c1024320

arch/powerpc/boot/Makefile

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -34,6 +34,7 @@ endif

	BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \		BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
	-fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \		-fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \
			$(call cc-option,-mno-spe) $(call cc-option,-mspe=no) \
	-pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \		-pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
	$(LINUXINCLUDE)		$(LINUXINCLUDE)