#
# Copyright (c) 2018 Renesas Electronics Corporation. All rights reserved.
#

#/* Select BOOT("CR7"or"ICUMXA")*************************
ifeq ("$(BOOT)", "")
BOOT = ICUMXA
endif

#/* Select AArch("64"or"32" )***************************************************
ifeq ("$(AArch)", "")
AArch = 64
endif

#CPU
ifeq ("$(AArch)", "64")
CPU = -march=armv8-a
endif
ifeq ("$(AArch)", "32")
CPU = -mcpu=cortex-r7
endif

ifeq ("$(AArch)", "32")
	THUMB   = -marm
	AS_NEON = 
	CC_NEON = 
	ALIGN   = -mno-unaligned-access
endif
ifeq ("$(AArch)", "64")
	THUMB   = 
	AS_NEON = 
	CC_NEON = -mgeneral-regs-only
	ALIGN   = -mstrict-align
endif

ifeq ("$(AArch)", "32")
	AArch32_64  = AArch32
	BOOTDIR     = AArch32_boot
	OUTPUT_DIR  = AArch32_output
	OBJECT_DIR  = AArch32_obj
	CROSS_COMPILE ?= arm-eabi-
endif
ifeq ("$(AArch)", "64")
	AArch32_64  = AArch64
	BOOTDIR     = AArch64_boot
	OUTPUT_DIR  = AArch64_output
	OBJECT_DIR  = AArch64_obj
	CROSS_COMPILE ?= aarch64-elf-
endif

ifeq ("$(BOOT)", "CR7")
#	BOOT_DEF    = Writer
	MEMORY_DEF = memory_cr7.def
	FILE_NAME   = $(OUTPUT_DIR)/AArch$(AArch)_Dummy_CA53_Program$(FILENAME_ADD)
endif

ifeq ("$(BOOT)", "ICUMXA")
#	BOOT_DEF    = Writer
	MEMORY_DEF  = memory_icumxa.def
	FILE_NAME   = $(OUTPUT_DIR)/AArch$(AArch)_Dummy_CA53_Program$(FILENAME_ADD)
endif

LIBS        = -L$(subst libc.a, ,$(shell $(CC) -print-file-name=libc.a 2> /dev/null)) -lc
LIBS        += -L$(subst libgcc.a, ,$(shell $(CC) -print-libgcc-file-name 2> /dev/null)) -lgcc

INCLUDE_DIR = include

OUTPUT_FILE = $(FILE_NAME).axf

#Object file
OBJ_FILE_BOOT =						\
	$(OBJECT_DIR)/boot_mon.o			\
	$(OBJECT_DIR)/stack.o

SRC_FILE :=						\
	main.c						\
	init_scif.c					\
	scifdrv0.c					\
	scifdrv0_v3h.c					\
	scifdrv2.c					\
	devdrv.c					\
	common.c					


ifeq ("$(BOOT)", "WRITER_WITH_CERT")
	SRC_FILE += cert_param.c
endif

OBJ_FILE := $(addprefix $(OBJECT_DIR)/,$(patsubst %.c,%.o,$(SRC_FILE)))

#Dependency File
DEPEND_FILE = $(patsubst %.lib, ,$(OBJ_FILE:%.o=%.d))

###################################################
#C compiler
CC = $(CROSS_COMPILE)gcc
#Assembler
AS = $(CROSS_COMPILE)as
#Linker
LD = $(CROSS_COMPILE)ld
#Liblary
AR = $(CROSS_COMPILE)ar
#Object dump
OBJDMP = $(CROSS_COMPILE)objdump
#Object copy
OBJCOPY = $(CROSS_COMPILE)objcopy

#clean
CL = rm -rf

###################################################
# Suffixes
.SUFFIXES : .s .c .o

###################################################
# Command

.PHONY: all
all: $(OBJECT_DIR) $(OUTPUT_DIR) $(OBJ_FILE_BOOT) $(OBJ_FILE) $(OUTPUT_FILE)

#------------------------------------------
# Make Directory
#------------------------------------------
$(OBJECT_DIR):
	-mkdir "$(OBJECT_DIR)"

$(OUTPUT_DIR):
	-mkdir "$(OUTPUT_DIR)"

#------------------------------------------
# Compile
#------------------------------------------
$(OBJECT_DIR)/%.o:$(BOOTDIR)/%.s
	$(AS)  -g $(CPU) $(AS_NEON) --MD $(patsubst %.o,%.d,$@) -I $(BOOTDIR) -I $(INCLUDE_DIR) $< -o $@ --defsym $(AArch32_64)=0

$(OBJECT_DIR)/%.o:%.c
	@if [ ! -e `dirname $@` ]; then mkdir -p `dirname $@`; fi
	$(CC) -g -Os $(ALIGN) $(CPU) $(CC_NEON) $(THUMB) -MMD -MP -c -I $(BOOTDIR) -I $(INCLUDE_DIR) $< -o $@ -D$(AArch32_64)=0 $(CFLAGS)

#------------------------------------------
# Linker
#------------------------------------------
$(OUTPUT_FILE): $(OBJ_FILE_BOOT) $(OBJ_FILE) $(MEMORY_DEF)
	$(LD) $(OBJ_FILE_BOOT) $(OBJ_FILE) \
	-T '$(MEMORY_DEF)'			\
	-o '$(OUTPUT_FILE)'			\
	-Map '$(FILE_NAME).map' 	\
	-static					\
	$(LIBS)

#   Make SREC file
	$(OBJCOPY) -O srec --srec-forceS3 "$(OUTPUT_FILE)" "$(FILE_NAME).srec"

#   Make Binary file
	$(OBJCOPY) -O binary "$(OUTPUT_FILE)" "$(FILE_NAME).bin"

#   Dis assemble
	$(OBJDMP) -d -S "$(OUTPUT_FILE)" > "$(FILE_NAME)_disasm.txt"

#	Time Stamp
	@echo ==========  %date% %time%  ==========
	@echo ========== !!! Compile Complete !!! ==========


.PHONY: clean
clean:
	$(CL)  $(OBJECT_DIR)/* $(OUTPUT_DIR)/*

-include $(DEPEND_FILE)