#/******************************************************************************
#*
#*   Copyright (c) 2020 Intel.
#*
#*   Licensed under the Apache License, Version 2.0 (the "License");
#*   you may not use this file except in compliance with the License.
#*   You may obtain a copy of the License at
#*
#*       http://www.apache.org/licenses/LICENSE-2.0
#*
#*   Unless required by applicable law or agreed to in writing, software
#*   distributed under the License is distributed on an "AS IS" BASIS,
#*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#*   See the License for the specific language governing permissions and
#*   limitations under the License.
#*
#*******************************************************************************/

MYCUSTOMTAB='     '
MYCUSTOMSPACE='============================================================================================'
MYCUSTOMSPACE1='------------------------------------------------------------'

##############################################################
#  Tools configuration
##############################################################
ifeq ($(WIRELESS_SDK_TOOLCHAIN),icc)
CC  := icc
CPP := icpc
AS := as
AR := ar
LD := icc
else ifeq ($(WIRELESS_SDK_TOOLCHAIN),icx)
    CC  := icx
    CPP := icpx
    AS  := as
    AR  := llvm-ar
    LD  := icx
else
    $(error "Please define WIRELESS_SDK_TOOLCHAIN environment variable")
endif

OBJDUMP := objdump

ifeq ($(SHELL),cmd.exe)
MD := mkdir.exe -p
CP := cp.exe -f
RM := rm.exe -rf
else
MD := mkdir -p
CP := cp -f
RM := rm -rf
endif

ifeq ($(ORU),1)
	PROJECT_NAME := libxran-oru
	BUILDDIR := build-oru
else
PROJECT_NAME := libxran
	BUILDDIR := build
endif
PROJECT_TYPE := lib
PROJECT_DIR  := $(XRAN_DIR)/lib

ifeq ($(XRAN_LIB_SO),)
PROJECT_BINARY := $(BUILDDIR)/$(PROJECT_NAME).a
else
PROJECT_BINARY := $(BUILDDIR)/$(PROJECT_NAME).so
endif

ifeq ($(RTE_SDK),)
    $(error "Please define RTE_SDK environment variable")
endif

RTE_TARGET ?= x86_64-native-linux-icc
RTE_INC := $(shell PKG_CONFIG_PATH=/usr/lib64/pkgconfig:$(RTE_SDK)/build/meson-uninstalled pkgconf --cflags-only-I libdpdk)

API_DIR := $(PROJECT_DIR)/api
SRC_DIR := $(PROJECT_DIR)/src
ETH_DIR := $(PROJECT_DIR)/ethernet

ifeq ($(MLOG),1)
ifeq ($(MLOG_DIR),)
    MLOG_DIR=$(XRAN_DIR)/../mlog
endif
endif

CC_SRC = $(ETH_DIR)/ethdi.c \
	$(ETH_DIR)/ethernet.c \
	$(SRC_DIR)/xran_up_api.c \
	$(SRC_DIR)/xran_sync_api.c \
	$(SRC_DIR)/xran_timer.c \
	$(SRC_DIR)/xran_cp_api.c 	\
	$(SRC_DIR)/xran_transport.c 	\
	$(SRC_DIR)/xran_common.c        \
	$(SRC_DIR)/xran_ul_tables.c     \
	$(SRC_DIR)/xran_frame_struct.c  \
	$(SRC_DIR)/xran_dev.c \
	$(SRC_DIR)/xran_rx_proc.c \
	$(SRC_DIR)/xran_tx_proc.c \
	$(SRC_DIR)/xran_cp_proc.c \
	$(SRC_DIR)/xran_cb_proc.c \
	$(SRC_DIR)/xran_mem_mgr.c \
	$(SRC_DIR)/xran_main.c \
	$(SRC_DIR)/xran_delay_measurement.c

CPP_SRC = $(SRC_DIR)/xran_compression.cpp \
	$(SRC_DIR)/xran_bfp_ref.cpp \
	$(SRC_DIR)/xran_bfp_cplane8.cpp \
	$(SRC_DIR)/xran_bfp_cplane16.cpp \
	$(SRC_DIR)/xran_bfp_cplane32.cpp \
	$(SRC_DIR)/xran_bfp_cplane64.cpp \
	$(SRC_DIR)/xran_bfp_uplane_9b16rb.cpp \
	$(SRC_DIR)/xran_bfp_uplane.cpp \
	$(SRC_DIR)/xran_mod_compression.cpp

CPP_SRC_SNC = $(SRC_DIR)/xran_compression_snc.cpp \
	$(SRC_DIR)/xran_bfp_cplane8_snc.cpp \
	$(SRC_DIR)/xran_bfp_cplane16_snc.cpp \
	$(SRC_DIR)/xran_bfp_cplane32_snc.cpp \
	$(SRC_DIR)/xran_bfp_cplane64_snc.cpp \
	$(SRC_DIR)/xran_bfp_uplane_snc.cpp

CC_FLAGS += -std=gnu11 -Wall -Wno-deprecated-declarations  \
	-fdata-sections \
	-ffunction-sections \
	-g \
        -fPIC \
	-Wall \
	-Wimplicit-function-declaration \
	-g -O3 -mcmodel=large

ifeq ($(WIRELESS_SDK_TOOLCHAIN),icc)
CC_FLAGS += -wd1786 -restrict
endif

ifeq ($(WIRELESS_SDK_TOOLCHAIN),icx)
CC_FLAGS += -march=icelake-server -mintrinsic-promote -Wno-unused-function -Wno-intrinsic-promote -Wno-error
endif

CPP_FLAGS := -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D_GNU_SOURCE -D_REENTRANT -pipe \
                  -falign-functions=16 \
        -Werror -Wno-unused-variable -std=c++14 -mcmodel=large -fPIC

ifeq ($(WIRELESS_SDK_TOOLCHAIN),icc)
CPP_FLAGS +=  -fp-model fast=2 -no-prec-div -no-prec-sqrt -fast-transcendentals -restrict
endif

ifeq ($(WIRELESS_SDK_TOOLCHAIN),icx)
CPP_FLAGS +=  -fp-model fast -march=icelake-server -mintrinsic-promote -Wno-unused-function -Wno-intrinsic-promote -Wno-error
endif


INC :=  -I$(API_DIR) -I$(ETH_DIR) -I$(SRC_DIR) -I$(RTE_INC)
DEF :=
ifeq ($(MLOG),1)
	INC  += -I$(MLOG_DIR)/source
	DEF += -DMLOG_ENABLED
else
	DEF += -UMLOG_ENABLED
endif

ifeq ($(ORU),1)
	DEF += -DXRAN_O_RU_BUILD
else
	DEF += -UXRAN_O_RU_BUILD
endif

#DEF += -DFCN_ADAPT
#DEF += -DFCN_1_2_6_EARLIER

AS_FLAGS :=
AR_FLAGS := rc

PROJECT_OBJ_DIR := $(BUILDDIR)/obj

CC_OBJS := $(patsubst %.c,%.o,$(CC_SRC))
CPP_OBJS := $(patsubst %.cpp,%.o,$(CPP_SRC))
CPP_OBJS_SNC := $(patsubst %.cpp,%.o,$(CPP_SRC_SNC))
AS_OBJS := $(patsubst %.s,%.o,$(AS_SRC))
OBJS    := $(CC_OBJS) $(CPP_OBJS) $(CPP_OBJS_SNC) $(AS_OBJS) $(LIBS)
DIRLIST := $(addprefix $(PROJECT_OBJ_DIR)/,$(sort $(dir $(OBJS))))

CC_OBJTARGETS := $(addprefix $(PROJECT_OBJ_DIR)/,$(CC_OBJS))
CPP_OBJTARGETS := $(addprefix $(PROJECT_OBJ_DIR)/,$(CPP_OBJS))
CPP_SNC_OBJTARGETS := $(addprefix $(PROJECT_OBJ_DIR)/,$(CPP_OBJS_SNC))

AS_OBJTARGETS := $(addprefix $(PROJECT_OBJ_DIR)/,$(AS_OBJS))
#-qopt-report=5 -qopt-matmul -qopt-report-phase=all
CPP_COMP       := -O3 -DNDEBUG  -xcore-avx512 -fPIE -fasm-blocks
CPP_COMP_SNC   := -O3 -DNDEBUG -march=icelake-server -fPIE -fasm-blocks
CC_FLAGS_FULL  := $(CC_FLAGS)  $(INC) $(DEF)
CPP_FLAGS_FULL := $(CPP_FLAGS) $(CPP_COMP) $(INC) $(DEF)
CPP_FLAGS_FULL_SNC := $(CPP_FLAGS) $(CPP_COMP_SNC) $(INC) $(DEF)

AS_FLAGS := $(AS_FLAGS) $(INC)

PROJECT_DEP_FILE := $(PROJECT_OBJ_DIR)/$(PROJECT_NAME).dep

ifeq ($(wildcard $(PROJECT_DEP_FILE)),$(PROJECT_DEP_FILE))
GENERATE_DEPS :=
else

CC_DEPS  := $(addprefix __dep__,$(subst ../,__up__,$(CC_SRC)))
CPP_DEPS  := $(addprefix __dep__,$(subst ../,__up__,$(CPP_SRC)))
CPP_SNC_DEPS  := $(addprefix __dep__,$(subst ../,__up__,$(CPP_SRC_SNC)))
GENERATE_DEPS := generate_deps
endif

all : welcome_line 	$(PROJECT_BINARY)
	@echo $(PROJECT_BINARY)

.PHONY : clear_dep
clear_dep:
	@$(RM) $(PROJECT_DEP_FILE)
	@echo [DEP]   $(subst $(PROJECT_OBJ_DIR)/,,$(PROJECT_DEP_FILE))

$(CC_DEPS) :
	@$(CC) -MM $(subst __up__,../,$(subst __dep__,,$@)) -MT $(PROJECT_OBJ_DIR)/$(patsubst %.c,%.o,$(subst __up__,../,$(subst __dep__,,$@))) $(CC_FLAGS_FULL) >> $(PROJECT_DEP_FILE)

$(CPP_DEPS) :
	@$(CPP) -MM $(subst __up__,../,$(subst __dep__,,$@)) -MT $(PROJECT_OBJ_DIR)/$(patsubst %.cpp,%.o,$(subst __up__,../,$(subst __dep__,,$@))) $(CPP_FLAGS_FULL) >> $(PROJECT_DEP_FILE)

$(CPP_SNC_DEPS) :
	@$(CPP) -MM $(subst __up__,../,$(subst __dep__,,$@)) -MT $(PROJECT_OBJ_DIR)/$(patsubst %.cpp,%.o,$(subst __up__,../,$(subst __dep__,,$@))) $(CPP_FLAGS_FULL_SNC) >> $(PROJECT_DEP_FILE)

.PHONY : generate_deps
generate_deps : clear_dep $(CC_DEPS) $(CPP_DEPS) $(CPP_SNC_DEPS)


.PHONY : echo_start_build
echo_start_build :
	@echo [BUILD] $(PROJECT_TYPE) : $(PROJECT_NAME)

$(DIRLIST) :
	-@$(MD) $@

$(CC_OBJTARGETS) :
	@echo [CC]    $(subst $(PROJECT_OBJ_DIR)/,,$@)
	@$(CC) -c $(CC_FLAGS_FULL) -o"$@" $(patsubst %.o,%.c,$(subst $(PROJECT_OBJ_DIR)/,,$@))

$(CPP_OBJTARGETS) :
	@echo [CPP]    $(subst $(PROJECT_OBJ_DIR)/,,$@)
	@$(CPP) -c $(CPP_FLAGS_FULL) -o"$@" $(patsubst %.o,%.cpp,$(subst $(PROJECT_OBJ_DIR)/,,$@))

$(CPP_SNC_OBJTARGETS) :
	@echo [CPP-SNC]    $(subst $(PROJECT_OBJ_DIR)/,,$@)
	@$(CPP) -c $(CPP_FLAGS_FULL_SNC) -o"$@" $(patsubst %.o,%.cpp,$(subst $(PROJECT_OBJ_DIR)/,,$@))

$(AS_OBJTARGETS) :
	@echo [AS]    $(subst $(PROJECT_OBJ_DIR)/,,$@)
	@$(AS) $(AS_FLAGS) -o"$@" $(patsubst %.o,%.s,$(subst $(PROJECT_OBJ_DIR)/,,$@))

ifeq ($(wildcard $(PROJECT_DEP_FILE)),$(PROJECT_DEP_FILE))

include $(PROJECT_DEP_FILE)

endif

.PHONY: clean xclean
clean:
	@echo [CLEAN]  : $(PROJECT_NAME)
	@$(RM) $(CC_OBJTARGETS) $(CPP_OBJTARGETS) $(CPP_SNC_OBJTARGETS) $(AS_OBJTARGETS)

xclean: clean
ifneq ($(wildcard $(PROJECT_DIR)/$(PROJECT_MAKE)),)
	@echo [XCLEAN] : $(PROJECT_NAME)
	@$(RM) $(PROJECT_BINARY) $(PROJECT_BINARY_LIB) $(PROJECT_DEP_FILE)
endif

.PHONY : welcome_line
welcome_line :
	@echo $(MYCUSTOMSPACE)
	@echo Building  $(PROJECT_BINARY)
	@echo $(MYCUSTOMTAB)RTE_TARGET           = $(RTE_TARGET)
	@echo $(MYCUSTOMSPACE)


.PHONY : debug release

debug :  all
release :  all

$(PROJECT_BINARY) : $(DIRLIST) echo_start_build $(GENERATE_DEPS) $(PRE_BUILD) $(CC_OBJTARGETS) $(CPP_OBJTARGETS) $(CPP_SNC_OBJTARGETS) $(AS_OBJTARGETS)
	@echo [AR]    $(subst $(BUILDDIR)/,,$@)
ifeq ($(XRAN_LIB_SO),)
	@$(AR) $(AR_FLAGS) $@ $(CC_OBJTARGETS) $(CPP_OBJTARGETS) $(CPP_SNC_OBJTARGETS) $(AS_OBJTARGETS)
else
	@$(CC) $(CC_OBJTARGETS) $(CPP_OBJTARGETS) $(CPP_SNC_OBJTARGETS) $(AS_OBJTARGETS) -shared -fPIC -o $@
endif