# SPDX-License-Identifier: GPL-2.0
#
# This is a simple Makefile to test some of the RAID-6 code
# from userspace.
#

pound := \#

CC	 = gcc
OPTFLAGS = -O2			# Adjust as desired
CFLAGS	 = -I.. -I ../../../include -g $(OPTFLAGS)
LD	 = ld
AWK	 = awk -f
AR	 = ar
RANLIB	 = ranlib
OBJS	 = int1.o int2.o int4.o int8.o int16.o int32.o recov.o algos.o tables.o

ARCH := $(shell uname -m 2>/dev/null | sed -e /s/i.86/i386/)
ifeq ($(ARCH),i386)
        CFLAGS += -DCONFIG_X86_32
        IS_X86 = yes
endif
ifeq ($(ARCH),x86_64)
        CFLAGS += -DCONFIG_X86_64
        IS_X86 = yes
endif

ifeq ($(ARCH),arm)
        CFLAGS += -I../../../arch/arm/include -mfpu=neon
        HAS_NEON = yes
endif
ifeq ($(ARCH),aarch64)
        CFLAGS += -I../../../arch/arm64/include
        HAS_NEON = yes
endif

ifeq ($(IS_X86),yes)
        OBJS   += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o
        CFLAGS += $(shell echo "pshufb %xmm0, %xmm0" |		\
                    gcc -c -x assembler - >/dev/null 2>&1 &&	\
                    rm ./-.o && echo -DCONFIG_AS_SSSE3=1)
        CFLAGS += $(shell echo "vpbroadcastb %xmm0, %ymm1" |	\
                    gcc -c -x assembler - >/dev/null 2>&1 &&	\
                    rm ./-.o && echo -DCONFIG_AS_AVX2=1)
	CFLAGS += $(shell echo "vpmovm2b %k1, %zmm5" |          \
		    gcc -c -x assembler - >/dev/null 2>&1 &&	\
		    rm ./-.o && echo -DCONFIG_AS_AVX512=1)
else ifeq ($(HAS_NEON),yes)
        OBJS   += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o
        CFLAGS += -DCONFIG_KERNEL_MODE_NEON=1
else
        HAS_ALTIVEC := $(shell printf '$(pound)include <altivec.h>\nvector int a;\n' |\
                         gcc -c -x c - >/dev/null && rm ./-.o && echo yes)
        ifeq ($(HAS_ALTIVEC),yes)
                CFLAGS += -I../../../arch/powerpc/include
                CFLAGS += -DCONFIG_ALTIVEC
                OBJS += altivec1.o altivec2.o altivec4.o altivec8.o \
                        vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o
        endif
endif

.c.o:
	$(CC) $(CFLAGS) -c -o $@ $<

%.c: ../%.c
	cp -f $< $@

%.uc: ../%.uc
	cp -f $< $@

all:	raid6.a raid6test

raid6.a: $(OBJS)
	 rm -f $@
	 $(AR) cq $@ $^
	 $(RANLIB) $@

raid6test: test.c raid6.a
	$(CC) $(CFLAGS) -o raid6test $^

neon1.c: neon.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=1 < neon.uc > $@

neon2.c: neon.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=2 < neon.uc > $@

neon4.c: neon.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=4 < neon.uc > $@

neon8.c: neon.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=8 < neon.uc > $@

altivec1.c: altivec.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=1 < altivec.uc > $@

altivec2.c: altivec.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=2 < altivec.uc > $@

altivec4.c: altivec.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=4 < altivec.uc > $@

altivec8.c: altivec.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=8 < altivec.uc > $@

vpermxor1.c: vpermxor.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=1 < vpermxor.uc > $@

vpermxor2.c: vpermxor.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=2 < vpermxor.uc > $@

vpermxor4.c: vpermxor.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=4 < vpermxor.uc > $@

vpermxor8.c: vpermxor.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=8 < vpermxor.uc > $@

int1.c: int.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=1 < int.uc > $@

int2.c: int.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=2 < int.uc > $@

int4.c: int.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=4 < int.uc > $@

int8.c: int.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=8 < int.uc > $@

int16.c: int.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=16 < int.uc > $@

int32.c: int.uc ../unroll.awk
	$(AWK) ../unroll.awk -vN=32 < int.uc > $@

tables.c: mktables
	./mktables > tables.c

clean:
	rm -f *.o *.a mktables mktables.c *.uc int*.c altivec*.c vpermxor*.c neon*.c tables.c raid6test

spotless: clean
	rm -f *~