0c36d88cff
Older versions of BSD awk are fussy about the order of '-v' and '-f' flags, and require a space after the flag name. This causes build failures on platforms with an old awk, such as macOS and NetBSD. Since GNU awk and modern versions of BSD awk (distributed with FreeBSD/OpenBSD) are fine with either form, the definition of 'cmd_unroll' can be trivially tweaked to let the lib/raid6 Makefile work with both old and new awk flag dialects. Signed-off-by: John Millikin <john@john-millikin.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
3.2 KiB
SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_RAID6_PQ) += raid6_pq.o
raid6_pq-y += algos.o recov.o tables.o int1.o int2.o int4.o
int8.o int16.o int32.o
raid6_pq-$(CONFIG_X86) += recov_ssse3.o recov_avx2.o mmx.o sse1.o sse2.o avx2.o avx512.o recov_avx512.o
raid6_pq-$(CONFIG_ALTIVEC) += altivec1.o altivec2.o altivec4.o altivec8.o
vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o
raid6_pq-$(CONFIG_KERNEL_MODE_NEON) += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o
raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o
hostprogs += mktables
ifeq ($(CONFIG_ALTIVEC),y) altivec_flags := -maltivec $(call cc-option,-mabi=altivec)
ifdef CONFIG_CC_IS_CLANG
clang ppc port does not yet support -maltivec when -msoft-float is
enabled. A future release of clang will resolve this
https://bugs.llvm.org/show_bug.cgi?id=31177
CFLAGS_REMOVE_altivec1.o += -msoft-float CFLAGS_REMOVE_altivec2.o += -msoft-float CFLAGS_REMOVE_altivec4.o += -msoft-float CFLAGS_REMOVE_altivec8.o += -msoft-float CFLAGS_REMOVE_vpermxor1.o += -msoft-float CFLAGS_REMOVE_vpermxor2.o += -msoft-float CFLAGS_REMOVE_vpermxor4.o += -msoft-float CFLAGS_REMOVE_vpermxor8.o += -msoft-float endif endif
The GCC option -ffreestanding is required in order to compile code containing
ARM/NEON intrinsics in a non C99-compliant environment (such as the kernel)
ifeq ($(CONFIG_KERNEL_MODE_NEON),y) NEON_FLAGS := -ffreestanding ifeq ($(ARCH),arm) NEON_FLAGS += -march=armv7-a -mfloat-abi=softfp -mfpu=neon endif CFLAGS_recov_neon_inner.o += $(NEON_FLAGS) ifeq ($(ARCH),arm64) CFLAGS_REMOVE_recov_neon_inner.o += -mgeneral-regs-only CFLAGS_REMOVE_neon1.o += -mgeneral-regs-only CFLAGS_REMOVE_neon2.o += -mgeneral-regs-only CFLAGS_REMOVE_neon4.o += -mgeneral-regs-only CFLAGS_REMOVE_neon8.o += -mgeneral-regs-only endif endif
quiet_cmd_unroll = UNROLL $@ cmd_unroll = $(AWK) -v N=$* -f $(srctree)/$(src)/unroll.awk < $< > $@
targets += int1.c int2.c int4.c int8.c int16.c int32.c $(obj)/int%.c: $(src)/int.uc $(src)/unroll.awk FORCE $(call if_changed,unroll)
CFLAGS_altivec1.o += $(altivec_flags) CFLAGS_altivec2.o += $(altivec_flags) CFLAGS_altivec4.o += $(altivec_flags) CFLAGS_altivec8.o += $(altivec_flags) targets += altivec1.c altivec2.c altivec4.c altivec8.c $(obj)/altivec%.c: $(src)/altivec.uc $(src)/unroll.awk FORCE $(call if_changed,unroll)
CFLAGS_vpermxor1.o += $(altivec_flags) CFLAGS_vpermxor2.o += $(altivec_flags) CFLAGS_vpermxor4.o += $(altivec_flags) CFLAGS_vpermxor8.o += $(altivec_flags) targets += vpermxor1.c vpermxor2.c vpermxor4.c vpermxor8.c $(obj)/vpermxor%.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE $(call if_changed,unroll)
CFLAGS_neon1.o += $(NEON_FLAGS) CFLAGS_neon2.o += $(NEON_FLAGS) CFLAGS_neon4.o += $(NEON_FLAGS) CFLAGS_neon8.o += $(NEON_FLAGS) targets += neon1.c neon2.c neon4.c neon8.c $(obj)/neon%.c: $(src)/neon.uc $(src)/unroll.awk FORCE $(call if_changed,unroll)
targets += s390vx8.c $(obj)/s390vx%.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE $(call if_changed,unroll)
quiet_cmd_mktable = TABLE $@ cmd_mktable = $(obj)/mktables > $@
targets += tables.c $(obj)/tables.c: $(obj)/mktables FORCE $(call if_changed,mktable)