trennfix/sw: Makefile improvements

[eisenbahn.git] / trennfix / sw / Makefile

#######################################

HW?=trennfix_0.4

# Default program to build
PROG?=trennfix

BUILD_DIR=build

#######################################
# VERBOSITY CONTROL
ifeq ($(V),)
Q=@
else
Q=
endif

include mk/hw/${HW}.mk
include mk/prog/*.mk

INCLUDES+=-I mm/include -I include -I.
CFLAGS+=-D__HW_CONF_HEADER__="<config/${CONFIG}.h>"

CFLAGS += -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL
CFLAGS += -std=gnu99
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CFLAGS += -Wall -Wstrict-prototypes
CFLAGS += -Os -gdwarf-2
CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
CFLAGS += -MD $(@:.c:.d)
CFLAGS += $(INCLUDES)

ASFLAGS += -Wa,-adhlns=$(<:.S=.lst),-gstabs -mmcu=$(MCU)
ASFLAGS += -x assembler-with-cpp

#---------------- Library Options ----------------
# Minimalistic printf version
PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min

# Floating point printf version (requires MATH_LIB = -lm below)
PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt

# If this is left blank, then it will use the Standard printf version.
PRINTF_LIB =
#PRINTF_LIB = $(PRINTF_LIB_MIN)
#PRINTF_LIB = $(PRINTF_LIB_FLOAT)

# Minimalistic scanf version
SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min

# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt

# If this is left blank, then it will use the Standard scanf version.
SCANF_LIB =
#SCANF_LIB = $(SCANF_LIB_MIN)
#SCANF_LIB = $(SCANF_LIB_FLOAT)

LDFLAGS =  -Wl,-Map=$(@:.elf=.map),--cref
LIBS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)

#---------------- Programming Options (avrdude) ----------------

# Programming hardware: alf avr910 avrisp bascom bsd
# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
#
# Type: avrdude -c ?
# to get a full listing.
#
AVRDUDE_PROGRAMMER ?= avrisp2

# com1 = serial port. Use lpt1 to connect to parallel port.
AVRDUDE_PORT ?= usb

AVRDUDE_WRITE_FUSES = -U lfuse:w:${LFUSE}:m -U hfuse:w:${HFUSE}:m \
	 -U efuse:w:${EFUSE}:m

# Uncomment the following if you want avrdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see avrdude manual.
#AVRDUDE_ERASE_COUNTER = -y

# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
# AVRDUDE_NO_VERIFY = -V

# Increase verbosity level.  Please use this when submitting bug
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v

AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
AVRDUDE_FLAGS += -B 5

# Define programs and commands.
SHELL = sh
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
NM = avr-nm
AVRDUDE = avrdude
RM = rm -rf

define SELECT_DEFAULT_template =
elf: $(1).elf
hex: $(1).hex
eep: $(1).eep
lss: $(1).lss
sym: $(1).sym
clean: $(1)_clean
build: $(1)_build
program: $(1)_program
fuses: $(1)_fuses
endef

default:build

all: buildall

cleanall: $(foreach prog, $(PROGRAMS), $(prog)_clean)
buildall: $(foreach prog, $(PROGRAMS), $(prog)_build)

.PHONY: clean build program cleanall buildall all

$(eval $(call SELECT_DEFAULT_template, $(PROG)))

# Create final output files (.hex, .eep) from ELF output file.
%.hex: %.elf
	@echo HEX $@
	$(Q)$(OBJCOPY) -O ihex -R .fuse -R .eeprom $< $@

%.eep: %.elf
	@echo EEP $@
	$(Q)$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
	--change-section-lma .eeprom=0 -O ihex $< $@

# Create extended listing file from ELF output file.
%.lss: %.elf
	@echo LSS $@
	$(Q)$(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.
%.sym: %.elf
	@echo SYM $@
	$(Q)$(NM) -n $< > $@

# Link: create ELF output file from object files.
%.elf: $(OBJ)
	@echo LD $@
	$(Q)$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS)

# Compile: create object files from C source files.
$(BUILD_DIR)/%.o : %.c Makefile $(wildcard mk/hw/*)
	@echo CC $@
	@mkdir -p $(@D)
	$(Q)$(CC) -c $(CFLAGS) $< -o $@

# Compile: create assembler files from C source files.
%.s : %.c Makefile
	@echo CC-ASM $<
	$(Q)$(CC) -S $(CFLAGS) $< -o $@

# Assemble: create object files from assembler source files.
%.o : %.S
	@echo ASM $@
	@mkdir -p $(@D)
	$(Q)$(CC) -c $(ASFLAGS) $< -o $@

########################### The big template for each program ##################
define PROGRAM_template=

$(1)_mupf:
	@echo "$(1) Objects: " $$($(1)_OBJS)

# Determine program's object files
$(1)_OBJS=$$(foreach obj, $$($(1)_SRC:.c=.o), $(BUILD_DIR)/$$(obj))
$(1)_OBJS+=$$($(1)_ASRC:.S=.o)

# Collect all listing files - for cleanup
$(1)_LST += $$($(1)_SRC:.c=.lst) $$($(1)_ASRC:.S=.lst)

$(1): $(1).elf
$(1).elf: $$($(1)_OBJS)

$(1)_program : $(1).hex $(1).eep
	@echo PROG $(1)
	$(Q)$(AVRDUDE) $(AVRDUDE_FLAGS) -U flash:w:$(1).hex -U eeprom:w:$(1).eep

$(1)_fuses.bin: $(1).elf
	@echo OBJCOPY $$@
	$(Q)$(OBJCOPY) -j .fuse $(1).elf -O binary $$@
	$(Q)chmod -x $$@

$(1)_fuses: $(1)_fuses.bin
	@echo FUSES $$@
	$(Q)$(AVRDUDE) $(AVRDUDE_FLAGS)\
	-U lfuse:w:0x$$$$(hd $(1)_fuses.bin| awk '{print $$$$2}'):m \
	-U hfuse:w:0x$$$$(hd $(1)_fuses.bin| awk '{print $$$$3}'):m \
	-U efuse:w:0x$$$$(hd $(1)_fuses.bin| head -n1 |awk '{print $$$$4}'):m

$(1)_size: $(1).elf
	@echo; echo
	$(Q) $(SIZE) -A $(1).elf

# Target: clean project.
$(1)_clean:
	@echo CLEAN $(1)
	$(Q)$(RM) $(1).hex
	$(Q)$(RM) $(1).eep
	$(Q)$(RM) $(1).cof
	$(Q)$(RM) $(1).elf
	$(Q)$(RM) $(1).map
	$(Q)$(RM) $(1).sym
	$(Q)$(RM) $(1).lss
	$(Q)$(RM) $$($(1)_OBJS)
	$(Q)$(RM) $$($(1)_LST)
	$(Q)$(RM) $$($(1)_SRC:.c=.s)
	$(Q)$(RM) $$($(1)_SRC:.c=.d)
	$(Q)$(RM) $(1)_fuses.bin
	$(Q) rm -rf $(BUILD_DIR)/

$(1)_build: $(1).hex $(1)_size

-include $$($(1)_OBJS:.o=.d)

.PRECIOUS : $$($(1)_OBJS)
.PHONY: $(1) $(1)_clean $(1)_size $(1)_build

#############
endef
################################################################################

$(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog))))