# Project name
PROJECT_NAME=Base

# Directory definition.
ST_LIB_DIR=./stm32-api/STM32F10x_StdPeriph_Driver
ARM_CMSIS_DIR=./stm32-api/CMSIS
STARTUP_FILE=./startup_stm32f10x_hd.S

# Directory for output files (lst, obj, dep, elf, sym, map, hex, bin etc.).
OUTDIR = build

# Toolchain definition.
CC=arm-none-eabi-gcc
OBJCOPY=arm-none-eabi-objcopy
OBJDUMP=arm-none-eabi-size
NM = arm-none-eabi-nm
LDSCRIPT=stm32_flash.ld

# should use --gc-sections but the debugger does not seem to be able to cope with the option.
LINKER_FLAGS=-Xlinker -o$(PROJECT_NAME).axf -Xlinker -M -Xlinker -Map=$(PROJECT_NAME).map -Xlinker --no-gc-sections

# Debugging format.
#DEBUG = stabs
#DEBUG = dwarf-2
DEBUG= gdb

# Optimization level, can be [0, 1, 2, 3, s].
# 0 = turn off optimization. s = optimize for size.
# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
OPT = s
#OPT = 2
#OPT = 3
#OPT = 0

# Compiler flag to set the C Standard level.
# c89   - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99   - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
CSTANDARD = gnu89

# Compiler flags definition.
CFLAGS=-g$(DEBUG) \
		-O$(OPT) \
		-std=$(CSTANDARD) \
		-T$(LDSCRIPT) \
		-I . \
		-I ./STCode \
		-I $(ST_LIB_DIR)/inc \
		-I $(ARM_CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x \
		-I $(ARM_CMSIS_DIR)/CM3/CoreSupport \
		-D STM32F10X_HD \
		-D USE_STDPERIPH_DRIVER \
		-D VECT_TAB_FLASH \
		-D GCC_ARMCM3 \
		-D inline= \
		-D PACK_STRUCT_END=__attribute\(\(packed\)\) \
		-D ALIGN_STRUCT_END=__attribute\(\(aligned\(4\)\)\) \
		-mthumb \
		-mcpu=cortex-m3 \
		-ffunction-sections \
		-fdata-sections

ADEFS=-D STM32F10X_HD \
		-D USE_STDPERIPH_DRIVER \
		-D VECT_TAB_FLASH \
		-D GCC_ARMCM3 \
		-D inline= \
		-D PACK_STRUCT_END=__attribute\(\(packed\)\) \
		-D ALIGN_STRUCT_END=__attribute\(\(aligned\(4\)\)\) 
# Assembler flags
ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:.S=.lst),-g$(DEBUG)
ALL_ASFLAGS = -mcpu=cortex-m3 -mthumb-interwork -I. -x assembler-with-cpp $(ASFLAGS)

# Source files
SOURCE=	main.c \
		stm32f10x_it.c \
		stf_syscalls_minimal.c \
		system_stm32f10x.c \

# ST Library source files.
ST_LIB_SOURCE= $(ARM_CMSIS_DIR)/CM3/CoreSupport/core_cm3.c \
		$(ST_LIB_DIR)/src/misc.c \
		$(ST_LIB_DIR)/src/stm32f10x_rcc.c \
		$(ST_LIB_DIR)/src/stm32f10x_gpio.c \

SOURCE+=$(ST_LIB_SOURCE)

# List of all source files without directory and file-extension.
ALLSRCBASE = $(notdir $(basename $(SOURCE)))

LIBS=

# List of all objects files.
OBJS = $(addprefix $(OUTDIR)/, $(addsuffix .o, $(ALLSRCBASE)))

# Define Messages.
# English
MSG_BEGIN = -------- begin --------
MSG_END = --------  end  --------

# Rules definition. ***********************************************************
all: begin gccversion $(OUTDIR)/$(PROJECT_NAME).bin end

$(OUTDIR)/$(PROJECT_NAME).bin : $(PROJECT_NAME).axf
	$(OBJCOPY) $(PROJECT_NAME).axf -O binary $(PROJECT_NAME).bin

$(PROJECT_NAME).axf : $(OBJS) $(OUTDIR)/startup_stm32f10x.o Makefile
	$(CC) $(CFLAGS) $(OBJS) $(OUTDIR)/startup_stm32f10x.o $(LIBS) $(LINKER_FLAGS)

# Compile: create object files from C source files.
define COMPILE_C_TEMPLATE
$(OUTDIR)/$(notdir $(basename $(1))).o : $(1)
##	@echo
	@echo $$< "->" $$@
	$(CC) -c  $$(CFLAGS) $$< -o $$@
endef
$(foreach src, $(SOURCE), $(eval $(call COMPILE_C_TEMPLATE, $(src))))
#
$(OUTDIR)/startup_stm32f10x.o : $(STARTUP_FILE) Makefile
	$(CC) -c -mthumb $(ALL_ASFLAGS) -O1 $(STARTUP_FILE) -o $(OUTDIR)/startup_stm32f10x.o

clean :
	cs-rm -f $(OBJS)
	cs-rm -f $(OUTDIR)/startup_stm32f10x.o
	cs-rm -f startup_stm32f10x_hd.lst
	cs-rm -f $(PROJECT_NAME).axf
	cs-rm -f $(PROJECT_NAME).map
	cs-rm -f $(PROJECT_NAME).bin

log : $(PROJECT_NAME).axf
	$(NM) -n $(PROJECT_NAME).axf > $(PROJECT_NAME)_SymbolTable.txt
	$(OBJDUMP) --format=SysV $(PROJECT_NAME).axf > $(PROJECT_NAME)_MemoryListingSummary.txt
	$(OBJDUMP) $(OBJS) > $(PROJECT_NAME)_MemoryListingDetails.txt

# Eye candy.
begin:
##	@echo
	@echo $(MSG_BEGIN)

end:
	@echo $(MSG_END)
##	@echo

# Display compiler version information.
gccversion :
	@$(CC) --version