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makefile
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#######################################################################
###### That-Is-The-Box-Of-My-Wife ######
#######################################################################
###### Project: AVR-Crontab
###### Developer: Peter Shaw
###### Date: 2013
###### URL: https://github.com/petershaw/AVR-Crontab
#######################################################################
PROJECTNAME = libavrcron
# Directory to generate objects
OBJECTDIR=./build
# directory to store the product
TARGETDIR=./target
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
AR = avr-ar
AVRDUDE = avrdude
REMOVE = rm -f
MKDIR_P = mkdir -p
# Name of target controller
MCU = atmega328p
# Frequency of the controller
F_CPU = 16000000UL
# id to use with programmer
# default: PROGRAMMER_MCU=$(MCU)
PROGRAMMER_MCU = m328p
# Programmer to use with avrdude
PROGRAMMER=usbasp
# port to use a bootloader
# This should be the port for your MCU.
BOOTLOADER_PORT = /dev/tty.SLAB_USBtoUART
# baud to use a bootloader
BOOTLOADER_BAUD = 9600
# C Source files
PRJSRC = $(shell find ./src* -name *.c)
# additional includes (e.g. -I/path/to/mydir)
INC =
# libraries to link in (e.g. -lmylib)
LIBS =
# Optimization level,
# use s (size opt), 1, 2, 3 or 0 (off)
OPTLEVEL = s
# HEXFORMAT -- format for .hex file output
HEXFORMAT = ihex
# compiler
CFLAGS = -I$(INC) -g -mmcu=$(MCU) -O$(OPTLEVEL) \
-c \
-DF_CPU=$(F_CPU) \
-fpack-struct -fshort-enums \
-funsigned-bitfields -funsigned-char \
-Wall -Wstrict-prototypes \
-Wa,-ahlms=$(OBJECTDIR)/$(firstword \
$(filter %.lst, $(<:.c=.lst)))
# linker
LDFLAGS = -Wl,-Map,$(TRG).map -mmcu=$(MCU) \
-L "$${LIBPATH}" \
-lm $(LIBS)
##### automatic target names ####
TRG=$(TARGETDIR)/$(PROJECTNAME).out
DUMPTRG=$(TARGETDIR)/$(PROJECTNAME).s
# Start by splitting source files by type
# C
CFILES=$(filter %.c, $(PRJSRC))
# List all object files we need to create
_OBJDEPS=$(CFILES:.c=.o)
OBJDEPS=$(_OBJDEPS:./src=$(OBJECTDIR)/src)
# Define all lst files.
LST=$(filter %.lst, $(OBJDEPS:.o=.lst))
# All the possible generated assembly
# files (.s files)
GENASMFILES=$(filter %.s, $(OBJDEPS:.o=.s))
.SUFFIXES : .c .o .out .s .h .hex .ee.hex
dir_guard=$(MKDIR_P) $(OBJECTDIR)/$(@D)
# Make targets:
# all, disasm, stats, hex, writeflash/install, clean
all: prepare test $(TRG) $(HEXTRG)
prepare:
$(MKDIR_P) $(OBJECTDIR)
$(MKDIR_P) $(TARGETDIR)
test:
$(MAKE) -C tests
$(TRG): $(OBJDEPS)
$(AR) rcs $(TARGETDIR)/$(PROJECTNAME).a $(filter-out x86_64, $(shell find $(OBJECTDIR) -type f -name *.o))
$(MAKE) -f makefile_x86_64
#### Generating assembly ####
# asm from C
%.s: %.c
$(dir_guard)
$(CC) -S $(CFLAGS) $< -o $(OBJECTDIR)/$@
#### Generating object files ####
# object from C
.c.o:
$(dir_guard)
$(CC) $(CFLAGS) -c $< -o $(OBJECTDIR)/$@
#### Information ####
info:
which $(CC)
$(CC) -v
avr-ld -v
#### Cleanup ####
clean:
$(REMOVE) $(TRG) $(TRG).map $(DUMPTRG)
$(REMOVE) -r $(TARGETDIR)
$(REMOVE) $(OBJDEPS)
$(REMOVE) $(LST)
$(REMOVE) $(GENASMFILES)
$(REMOVE) -r $(OBJECTDIR)
$(MAKE) -C tests clean