From a0919e3177295f4aaa9006915adcddc31788d809 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 26 Dec 2018 00:00:40 +0000 Subject: [PATCH] powerpc: Fix -mcpu= options for SPE-only compiler GCC for Debian's "powerpcspe" architecture only supports 32-bit SPE targets, and using -mcpu=powerpc or -mcpu=powerpc64 is a fatal error. * Change the test for a biarch compiler to pass both the -m32 and -m64 options, so that it doesn't catch 32-bit-only compilers * Add an ifdef CONFIG_PPC64 around the 64-bit CPU option definitions Signed-off-by: Ben Hutchings [Romain: Patch from Debian repository: https://salsa.debian.org/kernel-team/linux/-/blob/buster/debian/patches/bugfix/powerpc/powerpc-fix-mcpu-options-for-spe-only-compiler.patch] Signed-off-by: Romain Naour --- arch/powerpc/Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 5c8c06215dd4..e3dbea6d7ae0 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -12,7 +12,7 @@ # Rewritten by Cort Dougan and Paul Mackerras # -HAS_BIARCH := $(call cc-option-yn, -m32) +HAS_BIARCH := $(call cc-option-yn, -m32 -m64) # Set default 32 bits cross compilers for vdso and boot wrapper CROSS32_COMPILE ?= @@ -164,6 +164,7 @@ CFLAGS-$(CONFIG_PPC32) += $(call cc-option, $(MULTIPLEWORD)) CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-mno-readonly-in-sdata) +ifdef CONFIG_PPC64 ifdef CONFIG_PPC_BOOK3S_64 ifdef CONFIG_CPU_LITTLE_ENDIAN CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8 @@ -175,6 +176,7 @@ endif else CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 endif +endif ifdef CONFIG_FUNCTION_TRACER CC_FLAGS_FTRACE := -pg -- 2.17.1