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# edam's Arduino makefile
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#_______________________________________________________________________________
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# Copyright (C) 2011, 2012 Tim Marston <tim@ed.am>.
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# Copyright (C) 2011, 1012 Tim Marston <tim@ed.am>.
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# determine values for SOURCES, TARGET and LIBRARIES. Any .c, .cc and .cpp
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# files in the project directory (or any "util" or "utility" subdirectories)
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# are automatically included in the build and are scanned for Arduino libraries
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# that have been #included. Note, there can only be one .ino (or .pde) file.
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# that have been #included. Note, there can only be one .ino (or .pde) file.
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# Alternatively, if you want to manually specify build variables, create a
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# Makefile that defines SOURCES and LIBRARIES and then includes arduino.mk.
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# ARDUINODIR The path where the Arduino software is installed on your system.
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# ARDUINOCONST The Arduino software version, as an integer, used to define the
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# ARDUINO version constant. This defaults to 100 if undefined.
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# ARDUINO version constant. This defaults to 100 if undefined.
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# AVRDUDECONF The avrdude.conf to use. If undefined, this defaults to a guess
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# based on where the avrdude in use is. If empty, no avrdude.conf
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# AVRDUDECONF The avrdude.conf to use. If undefined, this defaults to a guess
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# based on where the avrdude in use is. If empty, no avrdude.conf
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# is passed to avrdude (to the system default is used).
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# AVRDUDEFLAGS Specify any additional flags for avrdude. The usual flags,
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# required to build the project, will be appended to this.
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# AVRTOOLSPATH A space-separated list of directories that is searched in order
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# when looking for the avr build tools. This defaults to PATH,
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# followed by subdirectories in ARDUINODIR.
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# AVRTOOLSPATH A space-separated list of directories to search in order when
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# looking for the avr build tools. This defaults to the system PATH
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# followed by subdirectories in ARDUINODIR if undefined.
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# BOARD Specify a target board type. Run `make boards` to see available
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# CPPFLAGS Specify any additional flags for the compiler. The usual flags,
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# required to build the project, will be appended to this.
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# LINKFLAGS Specify any additional flags for the linker. The usual flags,
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# required to build the project, will be appended to this.
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# LIBRARIES A list of Arduino libraries to build and include. This is set
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# automatically if a .ino (or .pde) is found.
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# LIBRARYPATH A space-separated list of directories that is searched in order
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# when looking for Arduino libraries. This defaults to "libs",
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# "libraries" and then the Arduino software's libraries directory.
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# SERIALDEV The unix device name of the serial device that is the Arduino.
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# If unspecified, an attempt is made to determine the name of a
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# connected Arduino's serial device.
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# monitor Start `screen` on the serial device. This is meant to be an
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# equivalent to the Arduino serial monitor.
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# size Displays size information about the bulit target.
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# <file> Builds the specified file, either an object file or the target,
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# from those that that would be built for the project.
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#_______________________________________________________________________________
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# automatically determine sources and targeet
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TARGET := $(basename $(INOFILE))
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SOURCES := $(INOFILE) \
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$(wildcard *.c *.cc *.cpp *.C) \
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$(wildcard $(addprefix util/, *.c *.cc *.cpp *.C)) \
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$(wildcard $(addprefix utility/, *.c *.cc *.cpp *.C))
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$(wildcard *.c *.cc *.cpp) \
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$(wildcard $(addprefix util/, *.c *.cc *.cpp)) \
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$(wildcard $(addprefix utility/, *.c *.cc *.cpp))
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# automatically determine included libraries
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LIBRARIES := $(filter $(notdir $(wildcard $(addsuffix /*, $(LIBRARYPATH)))), \
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ARDUINOLIBSAVAIL := $(notdir $(wildcard $(ARDUINODIR)/libraries/*))
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LIBRARIES := $(filter $(ARDUINOLIBSAVAIL), \
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$(shell sed -ne "s/^ *\# *include *[<\"]\(.*\)\.h[>\"]/\1/p" $(SOURCES)))
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AR := $(call findsoftware,avr-ar)
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OBJCOPY := $(call findsoftware,avr-objcopy)
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AVRDUDE := $(call findsoftware,avrdude)
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AVRSIZE := $(call findsoftware,avr-size)
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ARDUINOCOREDIR := $(ARDUINODIR)/hardware/arduino/cores/arduino
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LIBRARYDIRS := $(foreach lib, $(LIBRARIES), \
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$(firstword $(wildcard $(addsuffix /$(lib), $(LIBRARYPATH)))))
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LIBRARYDIRS += $(addsuffix /utility, $(LIBRARYDIRS))
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TARGET := $(if $(TARGET),$(TARGET),a.out)
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OBJECTS := $(addsuffix .o, $(basename $(SOURCES)))
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DEPFILES := $(patsubst %, .dep/%.dep, $(SOURCES))
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ARDUINOLIB := .lib/arduino.a
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ARDUINOLIBOBJS := $(foreach dir, $(ARDUINOCOREDIR) $(LIBRARYDIRS), \
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$(patsubst %, .lib/%.o, $(wildcard $(addprefix $(dir)/, *.c *.cpp))))
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# avrdude confifuration
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ARDUINOSRCDIR := $(ARDUINODIR)/hardware/arduino/cores/arduino
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ARDUINOLIBSDIR := $(ARDUINODIR)/libraries
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ARDUINOLIB := _arduino.a
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ARDUINOLIBTMP := $(ARDUINOLIB).tmp
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ARDUINOLIBOBJS := $(patsubst %, $(ARDUINOLIBTMP)/%.o, $(basename $(notdir \
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$(wildcard $(addprefix $(ARDUINOSRCDIR)/, *.c *.cpp)))))
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ARDUINOLIBOBJS += $(foreach lib, $(LIBRARIES), \
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$(patsubst %, $(ARDUINOLIBTMP)/%.o, $(basename $(notdir \
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$(wildcard $(addprefix $(ARDUINOLIBSDIR)/$(lib)/, *.c *.cpp)) \
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$(wildcard $(addprefix $(ARDUINOLIBSDIR)/$(lib)/utility/, *.c *.cpp)) ))))
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ifeq "$(AVRDUDECONF)" ""
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ifeq "$(AVRDUDE)" "$(ARDUINODIR)/hardware/tools/avr/bin/avrdude"
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AVRDUDECONF := $(ARDUINODIR)/hardware/tools/avr/etc/avrdude.conf
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$(shell sed -ne "s/$(BOARD).upload.speed=\(.*\)/\1/p" $(BOARDS_FILE))
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BOARD_UPLOAD_PROTOCOL := \
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$(shell sed -ne "s/$(BOARD).upload.protocol=\(.*\)/\1/p" $(BOARDS_FILE))
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$(shell sed -ne "s/$(BOARD).build.vid=\(.*\)/\1/p" $(BOARDS_FILE))
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$(shell sed -ne "s/$(BOARD).build.pid=\(.*\)/\1/p" $(BOARDS_FILE))
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ifeq "$(BOARD_BUILD_MCU)" ""
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CPPFLAGS += -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections
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CPPFLAGS := -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections
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CPPFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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CPPFLAGS += -mmcu=$(BOARD_BUILD_MCU)
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CPPFLAGS += -DF_CPU=$(BOARD_BUILD_FCPU) -DARDUINO=$(ARDUINOCONST)
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CPPFLAGS += -DUSB_VID=$(BOARD_USB_VID) -DUSB_PID=$(BOARD_USB_PID)
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CPPFLAGS += -I. -Iutil -Iutility -I $(ARDUINOCOREDIR)
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CPPFLAGS += -I $(ARDUINODIR)/hardware/arduino/variants/$(BOARD_BUILD_VARIANT)/
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CPPFLAGS += $(addprefix -I , $(LIBRARYDIRS))
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CPPDEPFLAGS = -MMD -MP -MF .dep/$<.dep
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CPPINOFLAGS := -x c++ -include $(ARDUINOCOREDIR)/Arduino.h
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AVRDUDEFLAGS += $(addprefix -C , $(AVRDUDECONF)) -DV
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CPPFLAGS += -I. -Iutil -Iutility -I$(ARDUINOSRCDIR)
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CPPFLAGS += -I$(ARDUINODIR)/hardware/arduino/variants/$(BOARD_BUILD_VARIANT)/
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CPPFLAGS += $(addprefix -I$(ARDUINODIR)/libraries/, $(LIBRARIES))
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CPPFLAGS += $(patsubst %, -I$(ARDUINODIR)/libraries/%/utility, $(LIBRARIES))
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AVRDUDEFLAGS := $(addprefix -C , $(AVRDUDECONF)) -DV
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AVRDUDEFLAGS += -p $(BOARD_BUILD_MCU) -P $(SERIALDEV)
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AVRDUDEFLAGS += -c $(BOARD_UPLOAD_PROTOCOL) -b $(BOARD_UPLOAD_SPEED)
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LINKFLAGS += -Os -Wl,--gc-sections -mmcu=$(BOARD_BUILD_MCU)
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# figure out which arg to use with stty (for OS X, GNU and busybox stty)
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STTYFARG := $(shell stty --help 2>&1 | \
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grep -q 'illegal option' && echo -f || echo -F)
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# include dependencies
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ifneq "$(MAKECMDGOALS)" "clean"
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LINKFLAGS := -Os -Wl,--gc-sections -mmcu=$(BOARD_BUILD_MCU)
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# figure out which arg to use with stty
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STTYFARG := $(shell stty --help > /dev/null 2>&1 && echo -F || echo -f)
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.DEFAULT_GOAL := all
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#_______________________________________________________________________________
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.PHONY: all target upload clean boards monitor size
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.PHONY: all target upload clean boards monitor
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target: $(TARGET).hex
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@echo "\nUploading to board..."
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@test -n "$(SERIALDEV)" || { \
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echo "error: SERIALDEV could not be determined automatically." >&2; \
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rm -f $(TARGET).elf $(TARGET).hex $(ARDUINOLIB) *~
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rm -rf $(ARDUINOLIBTMP)
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@echo Available values for BOARD:
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@sed -nEe '/^#/d; /^[^.]+\.name=/p' $(BOARDS_FILE) | \
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sed -Ee 's/([^.]+)\.name=(.*)/\1 \2/' \
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-e 's/(.{12}) *(.*)/\1 \2/'
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@sed -ne '/^#/d;s/^\(.*\).name=\(.*\)/\1 \2/;T' \
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-e 's/\(.\{12\}\) *\(.*\)/\1 \2/;p' $(BOARDS_FILE)
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@test -n "$(SERIALDEV)" || { \
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@test -n `which screen` || { \
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echo "error: can't find GNU screen, you might need to install it." >&2 \
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@test 0 -eq $(SERIALDEVGUESS) || { \
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echo "*GUESSING* at serial device:" $(SERIALDEV); \
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screen $(SERIALDEV)
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echo && $(AVRSIZE) --format=avr --mcu=$(BOARD_BUILD_MCU) $(TARGET).elf
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# building the target
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$(TARGET).hex: $(TARGET).elf
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.INTERMEDIATE: $(TARGET).elf
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$(TARGET).elf: $(ARDUINOLIB) $(OBJECTS)
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$(CC) $(LINKFLAGS) $(OBJECTS) $(ARDUINOLIB) -lm -o $@
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mkdir -p .dep/$(dir $<)
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$(COMPILE.c) $(CPPDEPFLAGS) -o $@ $<
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mkdir -p .dep/$(dir $<)
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$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $<
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mkdir -p .dep/$(dir $<)
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$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $<
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mkdir -p .dep/$(dir $<)
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$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $<
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$(CC) $(LINKFLAGS) $(OBJECTS) $(ARDUINOLIB) -o $@
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mkdir -p .dep/$(dir $<)
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$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $(CPPINOFLAGS) $<
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$(COMPILE.cpp) -o $@ -x c++ -include $(ARDUINOSRCDIR)/Arduino.h $<
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mkdir -p .dep/$(dir $<)
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$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $(CPPINOFLAGS) $<
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$(COMPILE.cpp) -o $@ -x c++ -include $(ARDUINOSRCDIR)/Arduino.h $<
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# building the arduino library
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$(ARDUINOLIB): $(ARDUINOLIBOBJS)
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$(COMPILE.c) -o $@ $<
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$(COMPILE.cpp) -o $@ $<
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$(COMPILE.cpp) -o $@ $<
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rm -rf $(ARDUINOLIBTMP)
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.INTERMEDIATE: $(ARDUINOLIBOBJS)
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$(ARDUINOLIBTMP)/%.o: $(ARDUINOSRCDIR)/%.c
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@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
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$(COMPILE.c) -o $@ $<
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$(ARDUINOLIBTMP)/%.o: $(ARDUINOSRCDIR)/%.cpp
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@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
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$(COMPILE.cpp) -o $@ $<
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$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/%.c
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@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
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$(COMPILE.c) -o $@ $<
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$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/%.cpp
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@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
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$(COMPILE.cpp) -o $@ $<
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$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/utility/%.c
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@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
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$(COMPILE.c) -o $@ $<
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$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/utility/%.cpp
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@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
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$(COMPILE.cpp) -o $@ $<