# Hey Emacs, this is a -*- makefile -*- #---------------------------------------------------------------------------- # WinAVR Makefile Template written by Eric B. Weddington, Jg Wunsch, et al. # # Released to the Public Domain # # Additional material for this makefile was written by: # Peter Fleury # Tim Henigan # Colin O'Flynn # Reiner Patommel # Markus Pfaff # Sander Pool # Frederik Rouleau # Carlos Lamas # # Enable vpath seraching for source files only # Without this, output files, could be read from the wrong .build directories VPATH_SRC := $(VPATH) vpath %.c $(VPATH_SRC) vpath %.h $(VPATH_SRC) vpath %.cpp $(VPATH_SRC) vpath %.cc $(VPATH_SRC) vpath %.hpp $(VPATH_SRC) vpath %.S $(VPATH_SRC) VPATH := # Convert all SRC to OBJ define OBJ_FROM_SRC $(patsubst %.c,$1/%.o,$(patsubst %.cpp,$1/%.o,$(patsubst %.cc,$1/%.o,$(patsubst %.S,$1/%.o,$($1_SRC))))) endef $(foreach OUTPUT,$(OUTPUTS),$(eval $(OUTPUT)_OBJ +=$(call OBJ_FROM_SRC,$(OUTPUT)))) # Define a list of all objects OBJ := $(foreach OUTPUT,$(OUTPUTS),$($(OUTPUT)_OBJ)) MASTER_OUTPUT := $(firstword $(OUTPUTS)) # Output format. (can be srec, ihex, binary) FORMAT = ihex # Optimization level, can be [0, 1, 2, 3, s]. # 0 = turn off optimization. s = optimize for size. # (Note: 3 is not always the best optimization level. See avr-libc FAQ.) OPT = s AUTOGEN ?= false # Compiler flag to set the C Standard level. # c89 = "ANSI" C # gnu89 = c89 plus GCC extensions # c99 = ISO C99 standard (not yet fully implemented) # gnu99 = c99 plus GCC extensions CSTANDARD = -std=gnu99 # Place -D or -U options here for C sources #CDEFS += # Place -D or -U options here for ASM sources #ADEFS += # Place -D or -U options here for C++ sources #CPPDEFS += -D__STDC_LIMIT_MACROS #CPPDEFS += -D__STDC_CONSTANT_MACROS #CPPDEFS += #---------------- Compiler Options C ---------------- # -g*: generate debugging information # -O*: optimization level # -f...: tuning, see GCC manual and avr-libc documentation # -Wall...: warning level # -Wa,...: tell GCC to pass this to the assembler. # -adhlns...: create assembler listing CFLAGS += -g$(DEBUG) CFLAGS += $(CDEFS) CFLAGS += -O$(OPT) # add color ifeq ($(COLOR),true) ifeq ("$(shell echo "int main(){}" | $(CC) -fdiagnostics-color -x c - -o /dev/null 2>&1)", "") CFLAGS+= -fdiagnostics-color endif endif CFLAGS += -Wall CFLAGS += -Wstrict-prototypes #CFLAGS += -mshort-calls #CFLAGS += -fno-unit-at-a-time #CFLAGS += -Wundef #CFLAGS += -Wunreachable-code #CFLAGS += -Wsign-compare CFLAGS += -Wa,-adhlns=$(@:%.o=%.lst) CFLAGS += $(CSTANDARD) #---------------- Compiler Options C++ ---------------- # -g*: generate debugging information # -O*: optimization level # -f...: tuning, see GCC manual and avr-libc documentation # -Wall...: warning level # -Wa,...: tell GCC to pass this to the assembler. # -adhlns...: create assembler listing CPPFLAGS += -g$(DEBUG) CPPFLAGS += $(CPPDEFS) CPPFLAGS += -O$(OPT) # to supress "warning: only initialized variables can be placed into program memory area" CPPFLAGS += -w CPPFLAGS += -Wall CPPFLAGS += -Wundef #CPPFLAGS += -mshort-calls #CPPFLAGS += -fno-unit-at-a-time #CPPFLAGS += -Wstrict-prototypes #CPPFLAGS += -Wunreachable-code #CPPFLAGS += -Wsign-compare CPPFLAGS += -Wa,-adhlns=$(@:%.o=%.lst) #CPPFLAGS += $(CSTANDARD) #---------------- Assembler Options ---------------- # -Wa,...: tell GCC to pass this to the assembler. # -adhlns: create listing # -gstabs: have the assembler create line number information; note that # for use in COFF files, additional information about filenames # and function names needs to be present in the assembler source # files -- see avr-libc docs [FIXME: not yet described there] # -listing-cont-lines: Sets the maximum number of continuation lines of hex # dump that will be displayed for a given single line of source input. ASFLAGS += $(ADEFS) ASFLAGS += -Wa,-adhlns=$(@:%.o=%.lst),-gstabs,--listing-cont-lines=100 #---------------- 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 = $(SCANF_LIB_FLOAT) MATH_LIB = -lm CREATE_MAP ?= yes #---------------- Linker Options ---------------- # -Wl,...: tell GCC to pass this to linker. # -Map: create map file # --cref: add cross reference to map file # # Comennt out "--relax" option to avoid a error such: # (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12' # ifeq ($(CREATE_MAP),yes) LDFLAGS += -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref endif #LDFLAGS += -Wl,--relax LDFLAGS += $(EXTMEMOPTS) LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS)) LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) #LDFLAGS += -T linker_script.x # You can give EXTRALDFLAGS at 'make' command line. LDFLAGS += $(EXTRALDFLAGS) # Define programs and commands. SHELL = sh REMOVE = rm -f REMOVEDIR = rmdir COPY = cp WINSHELL = cmd SECHO = $(SILENT) || echo # Compiler flags to generate dependency files. #GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d GENDEPFLAGS = -MMD -MP -MF $(patsubst %.o,%.td,$@) # Combine all necessary flags and optional flags. # Add target processor to flags. # You can give extra flags at 'make' command line like: make EXTRAFLAGS=-DFOO=bar ALL_CFLAGS = $(MCUFLAGS) $(CFLAGS) $(EXTRAFLAGS) ALL_CPPFLAGS = $(MCUFLAGS) -x c++ $(CPPFLAGS) $(EXTRAFLAGS) ALL_ASFLAGS = $(MCUFLAGS) -x assembler-with-cpp $(ASFLAGS) $(EXTRAFLAGS) MOVE_DEP = mv -f $(patsubst %.o,%.td,$@) $(patsubst %.o,%.d,$@) elf: $(BUILD_DIR)/$(TARGET).elf hex: $(BUILD_DIR)/$(TARGET).hex eep: $(BUILD_DIR)/$(TARGET).eep lss: $(BUILD_DIR)/$(TARGET).lss sym: $(BUILD_DIR)/$(TARGET).sym LIBNAME=lib$(TARGET).a lib: $(LIBNAME) # Display size of file. HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf ELFSIZE = $(SIZE) $(BUILD_DIR)/$(TARGET).elf sizebefore: @if test -f $(TARGET).hex; then $(SECHO) $(MSG_SIZE_BEFORE); $(SILENT) || $(HEXSIZE); \ 2>/dev/null; $(SECHO); fi sizeafter: $(BUILD_DIR)/$(TARGET).hex @if test -f $(TARGET).hex; then $(SECHO); $(SECHO) $(MSG_SIZE_AFTER); $(SILENT) || $(HEXSIZE); \ 2>/dev/null; $(SECHO); fi # test file sizes eventually # @if [[ $($(SIZE) --target=$(FORMAT) $(TARGET).hex | $(AWK) 'NR==2 {print "0x"$5}') -gt 0x200 ]]; then $(SECHO) "File is too big!"; fi # Display compiler version information. gccversion : @$(SILENT) || $(CC) --version # Create final output files (.hex, .eep) from ELF output file. %.hex: %.elf @$(SILENT) || printf "$(MSG_FLASH) $@" | $(AWK_CMD) $(eval CMD=$(HEX) $< $@) @$(BUILD_CMD) @if $(AUTOGEN); then \ $(SILENT) || printf "Copying $(TARGET).hex to keymaps/$(KEYMAP)/$(KEYBOARD)_$(KEYMAP).hex\n"; \ $(COPY) $@ $(KEYMAP_PATH)/$(KEYBOARD)_$(KEYMAP).hex; \ else \ $(COPY) $@ $(TARGET).hex; \ fi %.eep: %.elf @$(SILENT) || printf "$(MSG_EEPROM) $@" | $(AWK_CMD) $(eval CMD=$(EEP) $< $@ || exit 0) @$(BUILD_CMD) # Create extended listing file from ELF output file. %.lss: %.elf @$(SILENT) || printf "$(MSG_EXTENDED_LISTING) $@" | $(AWK_CMD) $(eval CMD=$(OBJDUMP) -h -S -z $< > $@) @$(BUILD_CMD) # Create a symbol table from ELF output file. %.sym: %.elf @$(SILENT) || printf "$(MSG_SYMBOL_TABLE) $@" | $(AWK_CMD) $(eval CMD=$(NM) -n $< > $@ ) @$(BUILD_CMD) %.bin: %.elf @$(SILENT) || printf "$(MSG_BIN) $@" | $(AWK_CMD) $(eval CMD=$(BIN) $< $@ || exit 0) @$(BUILD_CMD) BEGIN = gccversion sizebefore # Link: create ELF output file from object files. .SECONDARY : $(BUILD_DIR)/$(TARGET).elf .PRECIOUS : $(OBJ) # Note the obj.txt depeendency is there to force linking if a source file is deleted %.elf: $(OBJ) $(MASTER_OUTPUT)/cflags.txt $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/obj.txt | $(BEGIN) @$(SILENT) || printf "$(MSG_LINKING) $@" | $(AWK_CMD) $(eval CMD=$(CC) $(ALL_CFLAGS) $(filter-out %.txt,$^) --output $@ $(LDFLAGS)) @$(BUILD_CMD) define GEN_OBJRULE $1_INCFLAGS := $$(patsubst %,-I%,$$($1_INC)) ifdef $1_CONFIG $1_CONFIG_FLAGS += -include $$($1_CONFIG) endif $1_CFLAGS = $$(ALL_CFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS) $1_CPPFLAGS= $$(ALL_CPPFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS) $1_ASFLAGS= $$(ALL_ASFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS) # Compile: create object files from C source files. $1/%.o : %.c $1/%.d $1/cflags.txt $1/compiler.txt | $(BEGIN) @mkdir -p $$(@D) @$$(SILENT) || printf "$$(MSG_COMPILING) $$<" | $$(AWK_CMD) $$(eval CMD := $$(CC) -c $$($1_CFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP)) @$$(BUILD_CMD) # Compile: create object files from C++ source files. $1/%.o : %.cpp $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN) @mkdir -p $$(@D) @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD) $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP)) @$$(BUILD_CMD) $1/%.o : %.cc $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN) @mkdir -p $$(@D) @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD) $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP)) @$$(BUILD_CMD) # Assemble: create object files from assembler source files. $1/%.o : %.S $1/asflags.txt $1/compiler.txt | $(BEGIN) @mkdir -p $$(@D) @$(SILENT) || printf "$$(MSG_ASSEMBLING) $$<" | $$(AWK_CMD) $$(eval CMD=$$(CC) -c $$($1_ASFLAGS) $$< -o $$@) @$$(BUILD_CMD) $1/force: $1/cflags.txt: $1/force echo '$$($1_CFLAGS)' | cmp -s - $$@ || echo '$$($1_CFLAGS)' > $$@ $1/cppflags.txt: $1/force echo '$$($1_CPPFLAGS)' | cmp -s - $$@ || echo '$$($1_CPPFLAGS)' > $$@ $1/asflags.txt: $1/force echo '$$($1_ASFLAGS)' | cmp -s - $$@ || echo '$$($1_ASFLAGS)' > $$@ $1/compiler.txt: $1/force $$(CC) --version | cmp -s - $$@ || $$(CC) --version > $$@ endef .PRECIOUS: $(MASTER_OUTPUT)/obj.txt $(MASTER_OUTPUT)/obj.txt: $(MASTER_OUTPUT)/force echo '$(OBJ)' | cmp -s - $@ || echo '$(OBJ)' > $@ .PRECIOUS: $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/ldflags.txt: $(MASTER_OUTPUT)/force echo '$(LDFLAGS)' | cmp -s - $@ || echo '$(LDFLAGS)' > $@ # We have to use static rules for the .d files for some reason DEPS = $(patsubst %.o,%.d,$(OBJ)) # Keep the .d files .PRECIOUS: $(DEPS) # Empty rule to force recompilation if the .d file is missing $(DEPS): $(foreach OUTPUT,$(OUTPUTS),$(eval $(call GEN_OBJRULE,$(OUTPUT)))) # Create preprocessed source for use in sending a bug report. %.i : %.c | $(BEGIN) $(CC) -E -mmcu=$(MCU) $(CFLAGS) $< -o $@ # Target: clean project. clean: $(foreach OUTPUT,$(OUTPUTS), $(REMOVE) -r $(OUTPUT) 2>/dev/null) $(REMOVE) $(BUILD_DIR)/$(TARGET).* show_path: @echo VPATH=$(VPATH) @echo SRC=$(SRC) @echo OBJ=$(OBJ) # Create build directory $(shell mkdir -p $(BUILD_DIR) 2>/dev/null) # Create object files directory $(eval $(foreach OUTPUT,$(OUTPUTS),$(shell mkdir -p $(OUTPUT) 2>/dev/null))) # Include the dependency files. -include $(patsubst %.o,%.d,$(OBJ)) # Listing of phony targets. .PHONY : all finish sizebefore sizeafter gccversion \ build elf hex eep lss sym coff extcoff \ clean clean_list debug gdb-config show_path \ program teensy dfu flip dfu-ee flip-ee dfu-start