OpenBLAS/Makefile.prebuild

# This is triggered by Makefile.system and runs before any of the code is built.

export BINARY
export USE_OPENMP

ifdef DYNAMIC_ARCH
override HOST_CFLAGS += -DDYNAMIC_ARCH
endif

ifdef TARGET_CORE
TARGET_MAKE = Makefile_kernel.conf
TARGET_CONF = config_kernel.h
else
TARGET_MAKE = Makefile.conf
TARGET_CONF = config.h
endif

# CPUIDEMU = ../../cpuid/table.o

ifdef CPUIDEMU
EXFLAGS = -DCPUIDEMU -DVENDOR=99
endif

ifeq ($(TARGET), MIPS24K)
TARGET_FLAGS = -mips32r2
endif

ifeq ($(TARGET), MIPS1004K)
TARGET_FLAGS = -mips32r2
endif

ifeq ($(TARGET), P5600)
TARGET_FLAGS = -mips32r5
endif

ifeq ($(TARGET), I6400)
TARGET_FLAGS = -mips64r6
endif

ifeq ($(TARGET), P6600)
TARGET_FLAGS = -mips64r6
endif

ifeq ($(TARGET), I6500)
TARGET_FLAGS = -mips64r6
endif

ifeq ($(TARGET), C910V)
TARGET_FLAGS = -march=rv64gcvxthead -mabi=lp64v
endif

all: getarch_2nd
	./getarch_2nd  0 >> $(TARGET_MAKE)
	./getarch_2nd  1 >> $(TARGET_CONF)

$(TARGET_CONF): c_check f_check getarch
	./c_check $(TARGET_MAKE) $(TARGET_CONF) $(CC) $(TARGET_FLAGS) $(CFLAGS)
ifneq ($(ONLY_CBLAS), 1)
	./f_check $(TARGET_MAKE) $(TARGET_CONF) $(FC) $(TARGET_FLAGS)
else
#When we only build CBLAS, we set NOFORTRAN=2
	echo "NOFORTRAN=2" >> $(TARGET_MAKE)
	echo "NO_FBLAS=1" >> $(TARGET_MAKE)
	echo "F_COMPILER=GFORTRAN"  >> $(TARGET_MAKE)
	echo "BU=_"  >> $(TARGET_MAKE)
	echo "#define BUNDERSCORE _" >> $(TARGET_CONF)
	echo "#define NEEDBUNDERSCORE 1" >> $(TARGET_CONF)
endif
	./getarch 0 >> $(TARGET_MAKE)
	./getarch 1 >> $(TARGET_CONF)


getarch : getarch.c cpuid.S dummy $(CPUIDEMU)
	avx512=$$(./c_check - - $(CC) $(TARGET_FLAGS) $(CFLAGS) | grep NO_AVX512); \
	rv64gv=$$(./c_check - - $(CC) $(TARGET_FLAGS) $(CFLAGS) | grep NO_RV64GV); \
	$(HOSTCC) $(HOST_CFLAGS) $(EXFLAGS) $${avx512:+-D$${avx512}} $${rv64gv:+-D$${rv64gv}} -o $(@F) getarch.c cpuid.S $(CPUIDEMU)

getarch_2nd : getarch_2nd.c $(TARGET_CONF) dummy
ifndef TARGET_CORE
	$(HOSTCC) -I. $(HOST_CFLAGS) -o $(@F) getarch_2nd.c
else
	$(HOSTCC) -I. $(HOST_CFLAGS) -DBUILD_KERNEL -o $(@F) getarch_2nd.c
endif

dummy:

.PHONY: dummy