1 # Hey Emacs, this is a -*- makefile -*-
2 #----------------------------------------------------------------------------
3 # WinAVR Makefile Template written by Eric B. Weddington, Jg Wunsch, et al.
5 # Released to the Public Domain
7 # Additional material for this makefile was written by:
18 # Enable vpath seraching for source files only
19 # Without this, output files, could be read from the wrong .build directories
21 vpath %.c $(VPATH_SRC)
22 vpath %.h $(VPATH_SRC)
23 vpath %.cpp $(VPATH_SRC)
24 vpath %.cc $(VPATH_SRC)
25 vpath %.hpp $(VPATH_SRC)
26 vpath %.S $(VPATH_SRC)
29 # Convert all SRC to OBJ
31 $(patsubst %.c,$1/%.o,$(patsubst %.cpp,$1/%.o,$(patsubst %.cc,$1/%.o,$(patsubst %.S,$1/%.o,$($1_SRC)))))
33 $(foreach OUTPUT,$(OUTPUTS),$(eval $(OUTPUT)_OBJ +=$(call OBJ_FROM_SRC,$(OUTPUT))))
35 # Define a list of all objects
36 OBJ := $(foreach OUTPUT,$(OUTPUTS),$($(OUTPUT)_OBJ))
38 MASTER_OUTPUT := $(firstword $(OUTPUTS))
42 # Output format. (can be srec, ihex, binary)
45 # Optimization level, can be [0, 1, 2, 3, s].
46 # 0 = turn off optimization. s = optimize for size.
47 # (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
53 # Compiler flag to set the C Standard level.
55 # gnu89 = c89 plus GCC extensions
56 # c99 = ISO C99 standard (not yet fully implemented)
57 # gnu99 = c99 plus GCC extensions
58 CSTANDARD = -std=gnu99
61 # Place -D or -U options here for C sources
65 # Place -D or -U options here for ASM sources
69 # Place -D or -U options here for C++ sources
70 #CPPDEFS += -D__STDC_LIMIT_MACROS
71 #CPPDEFS += -D__STDC_CONSTANT_MACROS
77 #---------------- Compiler Options C ----------------
78 # -g*: generate debugging information
79 # -O*: optimization level
80 # -f...: tuning, see GCC manual and avr-libc documentation
81 # -Wall...: warning level
82 # -Wa,...: tell GCC to pass this to the assembler.
83 # -adhlns...: create assembler listing
89 ifeq ("$(shell echo "int main(){}" | $(CC) -fdiagnostics-color -x c - -o /dev/null 2>&1)", "")
90 CFLAGS+= -fdiagnostics-color
94 CFLAGS += -Wstrict-prototypes
96 #CFLAGS += -mshort-calls
97 #CFLAGS += -fno-unit-at-a-time
99 #CFLAGS += -Wunreachable-code
100 #CFLAGS += -Wsign-compare
101 CFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
102 CFLAGS += $(CSTANDARD)
105 #---------------- Compiler Options C++ ----------------
106 # -g*: generate debugging information
107 # -O*: optimization level
108 # -f...: tuning, see GCC manual and avr-libc documentation
109 # -Wall...: warning level
110 # -Wa,...: tell GCC to pass this to the assembler.
111 # -adhlns...: create assembler listing
112 CPPFLAGS += -g$(DEBUG)
113 CPPFLAGS += $(CPPDEFS)
115 # to supress "warning: only initialized variables can be placed into program memory area"
120 #CPPFLAGS += -mshort-calls
121 #CPPFLAGS += -fno-unit-at-a-time
122 #CPPFLAGS += -Wstrict-prototypes
123 #CPPFLAGS += -Wunreachable-code
124 #CPPFLAGS += -Wsign-compare
125 CPPFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
126 #CPPFLAGS += $(CSTANDARD)
128 #---------------- Assembler Options ----------------
129 # -Wa,...: tell GCC to pass this to the assembler.
130 # -adhlns: create listing
131 # -gstabs: have the assembler create line number information; note that
132 # for use in COFF files, additional information about filenames
133 # and function names needs to be present in the assembler source
134 # files -- see avr-libc docs [FIXME: not yet described there]
135 # -listing-cont-lines: Sets the maximum number of continuation lines of hex
136 # dump that will be displayed for a given single line of source input.
138 ASFLAGS += -Wa,-adhlns=$(@:%.o=%.lst),-gstabs,--listing-cont-lines=100
140 #---------------- Library Options ----------------
141 # Minimalistic printf version
142 PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
144 # Floating point printf version (requires MATH_LIB = -lm below)
145 PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
147 # If this is left blank, then it will use the Standard printf version.
149 #PRINTF_LIB = $(PRINTF_LIB_MIN)
150 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
153 # Minimalistic scanf version
154 SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
156 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
157 SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
159 # If this is left blank, then it will use the Standard scanf version.
161 #SCANF_LIB = $(SCANF_LIB_MIN)
162 #SCANF_LIB = $(SCANF_LIB_FLOAT)
169 #---------------- Linker Options ----------------
170 # -Wl,...: tell GCC to pass this to linker.
171 # -Map: create map file
172 # --cref: add cross reference to map file
174 # Comennt out "--relax" option to avoid a error such:
175 # (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
178 ifeq ($(CREATE_MAP),yes)
179 LDFLAGS += -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref
181 #LDFLAGS += -Wl,--relax
182 LDFLAGS += $(EXTMEMOPTS)
183 LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
184 LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
185 #LDFLAGS += -T linker_script.x
186 # You can give EXTRALDFLAGS at 'make' command line.
187 LDFLAGS += $(EXTRALDFLAGS)
189 # Define programs and commands.
195 SECHO = $(SILENT) || echo
198 # Compiler flags to generate dependency files.
199 #GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
200 GENDEPFLAGS = -MMD -MP -MF $(patsubst %.o,%.td,$@)
203 # Combine all necessary flags and optional flags.
204 # Add target processor to flags.
205 # You can give extra flags at 'make' command line like: make EXTRAFLAGS=-DFOO=bar
206 ALL_CFLAGS = $(MCUFLAGS) $(CFLAGS) $(EXTRAFLAGS)
207 ALL_CPPFLAGS = $(MCUFLAGS) -x c++ $(CPPFLAGS) $(EXTRAFLAGS)
208 ALL_ASFLAGS = $(MCUFLAGS) -x assembler-with-cpp $(ASFLAGS) $(EXTRAFLAGS)
210 MOVE_DEP = mv -f $(patsubst %.o,%.td,$@) $(patsubst %.o,%.d,$@)
213 elf: $(BUILD_DIR)/$(TARGET).elf
214 hex: $(BUILD_DIR)/$(TARGET).hex
215 eep: $(BUILD_DIR)/$(TARGET).eep
216 lss: $(BUILD_DIR)/$(TARGET).lss
217 sym: $(BUILD_DIR)/$(TARGET).sym
218 LIBNAME=lib$(TARGET).a
221 # Display size of file.
222 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
223 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
224 ELFSIZE = $(SIZE) $(BUILD_DIR)/$(TARGET).elf
227 @if test -f $(TARGET).hex; then $(SECHO) $(MSG_SIZE_BEFORE); $(SILENT) || $(HEXSIZE); \
228 2>/dev/null; $(SECHO); fi
230 sizeafter: $(BUILD_DIR)/$(TARGET).hex
231 @if test -f $(TARGET).hex; then $(SECHO); $(SECHO) $(MSG_SIZE_AFTER); $(SILENT) || $(HEXSIZE); \
232 2>/dev/null; $(SECHO); fi
233 # test file sizes eventually
234 # @if [[ $($(SIZE) --target=$(FORMAT) $(TARGET).hex | $(AWK) 'NR==2 {print "0x"$5}') -gt 0x200 ]]; then $(SECHO) "File is too big!"; fi
236 # Display compiler version information.
238 @$(SILENT) || $(CC) --version
240 # Create final output files (.hex, .eep) from ELF output file.
242 @$(SILENT) || printf "$(MSG_FLASH) $@" | $(AWK_CMD)
243 $(eval CMD=$(HEX) $< $@)
245 @if $(AUTOGEN); then \
246 $(SILENT) || printf "Copying $(TARGET).hex to keymaps/$(KEYMAP)/$(KEYBOARD)_$(KEYMAP).hex\n"; \
247 $(COPY) $@ $(KEYMAP_PATH)/$(KEYBOARD)_$(KEYMAP).hex; \
249 $(COPY) $@ $(TARGET).hex; \
253 @$(SILENT) || printf "$(MSG_EEPROM) $@" | $(AWK_CMD)
254 $(eval CMD=$(EEP) $< $@ || exit 0)
257 # Create extended listing file from ELF output file.
259 @$(SILENT) || printf "$(MSG_EXTENDED_LISTING) $@" | $(AWK_CMD)
260 $(eval CMD=$(OBJDUMP) -h -S -z $< > $@)
263 # Create a symbol table from ELF output file.
265 @$(SILENT) || printf "$(MSG_SYMBOL_TABLE) $@" | $(AWK_CMD)
266 $(eval CMD=$(NM) -n $< > $@ )
270 @$(SILENT) || printf "$(MSG_BIN) $@" | $(AWK_CMD)
271 $(eval CMD=$(BIN) $< $@ || exit 0)
274 BEGIN = gccversion sizebefore
276 # Link: create ELF output file from object files.
277 .SECONDARY : $(BUILD_DIR)/$(TARGET).elf
279 # Note the obj.txt depeendency is there to force linking if a source file is deleted
280 %.elf: $(OBJ) $(MASTER_OUTPUT)/cflags.txt $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/obj.txt | $(BEGIN)
281 @$(SILENT) || printf "$(MSG_LINKING) $@" | $(AWK_CMD)
282 $(eval CMD=$(CC) $(ALL_CFLAGS) $(filter-out %.txt,$^) --output $@ $(LDFLAGS))
287 $1_INCFLAGS := $$(patsubst %,-I%,$$($1_INC))
289 $1_CONFIG_FLAGS += -include $$($1_CONFIG)
291 $1_CFLAGS = $$(ALL_CFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
292 $1_CPPFLAGS= $$(ALL_CPPFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
293 $1_ASFLAGS= $$(ALL_ASFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
295 # Compile: create object files from C source files.
296 $1/%.o : %.c $1/%.d $1/cflags.txt $1/compiler.txt | $(BEGIN)
298 @$$(SILENT) || printf "$$(MSG_COMPILING) $$<" | $$(AWK_CMD)
299 $$(eval CMD := $$(CC) -c $$($1_CFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
302 # Compile: create object files from C++ source files.
303 $1/%.o : %.cpp $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN)
305 @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD)
306 $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
309 $1/%.o : %.cc $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN)
311 @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD)
312 $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
315 # Assemble: create object files from assembler source files.
316 $1/%.o : %.S $1/asflags.txt $1/compiler.txt | $(BEGIN)
318 @$(SILENT) || printf "$$(MSG_ASSEMBLING) $$<" | $$(AWK_CMD)
319 $$(eval CMD=$$(CC) -c $$($1_ASFLAGS) $$< -o $$@)
324 $1/cflags.txt: $1/force
325 echo '$$($1_CFLAGS)' | cmp -s - $$@ || echo '$$($1_CFLAGS)' > $$@
327 $1/cppflags.txt: $1/force
328 echo '$$($1_CPPFLAGS)' | cmp -s - $$@ || echo '$$($1_CPPFLAGS)' > $$@
330 $1/asflags.txt: $1/force
331 echo '$$($1_ASFLAGS)' | cmp -s - $$@ || echo '$$($1_ASFLAGS)' > $$@
333 $1/compiler.txt: $1/force
334 $$(CC) --version | cmp -s - $$@ || $$(CC) --version > $$@
337 .PRECIOUS: $(MASTER_OUTPUT)/obj.txt
338 $(MASTER_OUTPUT)/obj.txt: $(MASTER_OUTPUT)/force
339 echo '$(OBJ)' | cmp -s - $@ || echo '$(OBJ)' > $@
341 .PRECIOUS: $(MASTER_OUTPUT)/ldflags.txt
342 $(MASTER_OUTPUT)/ldflags.txt: $(MASTER_OUTPUT)/force
343 echo '$(LDFLAGS)' | cmp -s - $@ || echo '$(LDFLAGS)' > $@
346 # We have to use static rules for the .d files for some reason
347 DEPS = $(patsubst %.o,%.d,$(OBJ))
350 # Empty rule to force recompilation if the .d file is missing
354 $(foreach OUTPUT,$(OUTPUTS),$(eval $(call GEN_OBJRULE,$(OUTPUT))))
356 # Create preprocessed source for use in sending a bug report.
358 $(CC) -E -mmcu=$(MCU) $(CFLAGS) $< -o $@
360 # Target: clean project.
362 $(foreach OUTPUT,$(OUTPUTS), $(REMOVE) -r $(OUTPUT) 2>/dev/null)
363 $(REMOVE) $(BUILD_DIR)/$(TARGET).*
370 # Create build directory
371 $(shell mkdir -p $(BUILD_DIR) 2>/dev/null)
373 # Create object files directory
374 $(eval $(foreach OUTPUT,$(OUTPUTS),$(shell mkdir -p $(OUTPUT) 2>/dev/null)))
376 # Include the dependency files.
377 -include $(patsubst %.o,%.d,$(OBJ))
380 # Listing of phony targets.
381 .PHONY : all finish sizebefore sizeafter gccversion \
382 build elf hex eep lss sym coff extcoff \
383 clean clean_list debug gdb-config show_path \
384 program teensy dfu flip dfu-ee flip-ee dfu-start