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(){}" | $(CC) -fdiagnostics-color -x c - -o /dev/null 2>&1)", "")
90 CFLAGS+= -fdiagnostics-color
94 CFLAGS += -Wstrict-prototypes
95 #CFLAGS += -mshort-calls
96 #CFLAGS += -fno-unit-at-a-time
98 #CFLAGS += -Wunreachable-code
99 #CFLAGS += -Wsign-compare
100 CFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
101 CFLAGS += $(CSTANDARD)
104 #---------------- Compiler Options C++ ----------------
105 # -g*: generate debugging information
106 # -O*: optimization level
107 # -f...: tuning, see GCC manual and avr-libc documentation
108 # -Wall...: warning level
109 # -Wa,...: tell GCC to pass this to the assembler.
110 # -adhlns...: create assembler listing
111 CPPFLAGS += -g$(DEBUG)
112 CPPFLAGS += $(CPPDEFS)
114 # to supress "warning: only initialized variables can be placed into program memory area"
118 #CPPFLAGS += -mshort-calls
119 #CPPFLAGS += -fno-unit-at-a-time
120 #CPPFLAGS += -Wstrict-prototypes
121 #CPPFLAGS += -Wunreachable-code
122 #CPPFLAGS += -Wsign-compare
123 CPPFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
124 #CPPFLAGS += $(CSTANDARD)
126 #---------------- Assembler Options ----------------
127 # -Wa,...: tell GCC to pass this to the assembler.
128 # -adhlns: create listing
129 # -gstabs: have the assembler create line number information; note that
130 # for use in COFF files, additional information about filenames
131 # and function names needs to be present in the assembler source
132 # files -- see avr-libc docs [FIXME: not yet described there]
133 # -listing-cont-lines: Sets the maximum number of continuation lines of hex
134 # dump that will be displayed for a given single line of source input.
136 ASFLAGS += -Wa,-adhlns=$(@:%.o=%.lst),-gstabs,--listing-cont-lines=100
138 #---------------- Library Options ----------------
139 # Minimalistic printf version
140 PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
142 # Floating point printf version (requires MATH_LIB = -lm below)
143 PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
145 # If this is left blank, then it will use the Standard printf version.
147 #PRINTF_LIB = $(PRINTF_LIB_MIN)
148 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
151 # Minimalistic scanf version
152 SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
154 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
155 SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
157 # If this is left blank, then it will use the Standard scanf version.
159 #SCANF_LIB = $(SCANF_LIB_MIN)
160 #SCANF_LIB = $(SCANF_LIB_FLOAT)
167 #---------------- Linker Options ----------------
168 # -Wl,...: tell GCC to pass this to linker.
169 # -Map: create map file
170 # --cref: add cross reference to map file
172 # Comennt out "--relax" option to avoid a error such:
173 # (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
176 ifeq ($(CREATE_MAP),yes)
177 LDFLAGS += -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref
179 #LDFLAGS += -Wl,--relax
180 LDFLAGS += $(EXTMEMOPTS)
181 LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
182 LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
183 #LDFLAGS += -T linker_script.x
184 # You can give EXTRALDFLAGS at 'make' command line.
185 LDFLAGS += $(EXTRALDFLAGS)
187 # Define programs and commands.
193 SECHO = $(SILENT) || echo
196 # Compiler flags to generate dependency files.
197 #GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
198 GENDEPFLAGS = -MMD -MP -MF $(patsubst %.o,%.td,$@)
201 # Combine all necessary flags and optional flags.
202 # Add target processor to flags.
203 # You can give extra flags at 'make' command line like: make EXTRAFLAGS=-DFOO=bar
204 ALL_CFLAGS = $(MCUFLAGS) $(CFLAGS) $(EXTRAFLAGS)
205 ALL_CPPFLAGS = $(MCUFLAGS) -x c++ $(CPPFLAGS) $(EXTRAFLAGS)
206 ALL_ASFLAGS = $(MCUFLAGS) -x assembler-with-cpp $(ASFLAGS) $(EXTRAFLAGS)
208 MOVE_DEP = mv -f $(patsubst %.o,%.td,$@) $(patsubst %.o,%.d,$@)
211 elf: $(BUILD_DIR)/$(TARGET).elf
212 hex: $(BUILD_DIR)/$(TARGET).hex
213 eep: $(BUILD_DIR)/$(TARGET).eep
214 lss: $(BUILD_DIR)/$(TARGET).lss
215 sym: $(BUILD_DIR)/$(TARGET).sym
216 LIBNAME=lib$(TARGET).a
219 # Display size of file.
220 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
221 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
222 ELFSIZE = $(SIZE) $(BUILD_DIR)/$(TARGET).elf
225 @if test -f $(TARGET).hex; then $(SECHO) $(MSG_SIZE_BEFORE); $(SILENT) || $(HEXSIZE); \
226 2>/dev/null; $(SECHO); fi
228 sizeafter: $(BUILD_DIR)/$(TARGET).hex
229 @if test -f $(TARGET).hex; then $(SECHO); $(SECHO) $(MSG_SIZE_AFTER); $(SILENT) || $(HEXSIZE); \
230 2>/dev/null; $(SECHO); fi
231 # test file sizes eventually
232 # @if [[ $($(SIZE) --target=$(FORMAT) $(TARGET).hex | $(AWK) 'NR==2 {print "0x"$5}') -gt 0x200 ]]; then $(SECHO) "File is too big!"; fi
234 # Display compiler version information.
236 @$(SILENT) || $(CC) --version
238 # Create final output files (.hex, .eep) from ELF output file.
240 @$(SILENT) || printf "$(MSG_FLASH) $@" | $(AWK_CMD)
241 $(eval CMD=$(HEX) $< $@)
243 @if $(AUTOGEN); then \
244 $(SILENT) || printf "Copying $(TARGET).hex to keymaps/$(KEYMAP)/$(KEYBOARD)_$(KEYMAP).hex\n"; \
245 $(COPY) $@ $(KEYMAP_PATH)/$(KEYBOARD)_$(KEYMAP).hex; \
247 $(COPY) $@ $(TARGET).hex; \
251 @$(SILENT) || printf "$(MSG_EEPROM) $@" | $(AWK_CMD)
252 $(eval CMD=$(EEP) $< $@ || exit 0)
255 # Create extended listing file from ELF output file.
257 @$(SILENT) || printf "$(MSG_EXTENDED_LISTING) $@" | $(AWK_CMD)
258 $(eval CMD=$(OBJDUMP) -h -S -z $< > $@)
261 # Create a symbol table from ELF output file.
263 @$(SILENT) || printf "$(MSG_SYMBOL_TABLE) $@" | $(AWK_CMD)
264 $(eval CMD=$(NM) -n $< > $@ )
268 @$(SILENT) || printf "$(MSG_BIN) $@" | $(AWK_CMD)
269 $(eval CMD=$(BIN) $< $@ || exit 0)
272 BEGIN = gccversion sizebefore
274 # Link: create ELF output file from object files.
275 .SECONDARY : $(BUILD_DIR)/$(TARGET).elf
277 # Note the obj.txt depeendency is there to force linking if a source file is deleted
278 %.elf: $(OBJ) $(MASTER_OUTPUT)/cflags.txt $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/obj.txt | $(BEGIN)
279 @$(SILENT) || printf "$(MSG_LINKING) $@" | $(AWK_CMD)
280 $(eval CMD=$(CC) $(ALL_CFLAGS) $(filter-out %.txt,$^) --output $@ $(LDFLAGS))
285 $1_INCFLAGS := $$(patsubst %,-I%,$$($1_INC))
287 $1_CONFIG_FLAGS += -include $$($1_CONFIG)
289 $1_CFLAGS = $$(ALL_CFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
290 $1_CPPFLAGS= $$(ALL_CPPFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
291 $1_ASFLAGS= $$(ALL_ASFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
293 # Compile: create object files from C source files.
294 $1/%.o : %.c $1/%.d $1/cflags.txt $1/compiler.txt | $(BEGIN)
296 @$$(SILENT) || printf "$$(MSG_COMPILING) $$<" | $$(AWK_CMD)
297 $$(eval CMD := $$(CC) -c $$($1_CFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
300 # Compile: create object files from C++ source files.
301 $1/%.o : %.cpp $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN)
303 @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD)
304 $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
307 $1/%.o : %.cc $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN)
309 @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD)
310 $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
313 # Assemble: create object files from assembler source files.
314 $1/%.o : %.S $1/asflags.txt $1/compiler.txt | $(BEGIN)
316 @$(SILENT) || printf "$$(MSG_ASSEMBLING) $$<" | $$(AWK_CMD)
317 $$(eval CMD=$$(CC) -c $$($1_ASFLAGS) $$< -o $$@)
322 $1/cflags.txt: $1/force
323 echo '$$($1_CFLAGS)' | cmp -s - $$@ || echo '$$($1_CFLAGS)' > $$@
325 $1/cppflags.txt: $1/force
326 echo '$$($1_CPPFLAGS)' | cmp -s - $$@ || echo '$$($1_CPPFLAGS)' > $$@
328 $1/asflags.txt: $1/force
329 echo '$$($1_ASFLAGS)' | cmp -s - $$@ || echo '$$($1_ASFLAGS)' > $$@
331 $1/compiler.txt: $1/force
332 $$(CC) --version | cmp -s - $$@ || $$(CC) --version > $$@
335 .PRECIOUS: $(MASTER_OUTPUT)/obj.txt
336 $(MASTER_OUTPUT)/obj.txt: $(MASTER_OUTPUT)/force
337 echo '$(OBJ)' | cmp -s - $@ || echo '$(OBJ)' > $@
339 .PRECIOUS: $(MASTER_OUTPUT)/ldflags.txt
340 $(MASTER_OUTPUT)/ldflags.txt: $(MASTER_OUTPUT)/force
341 echo '$(LDFLAGS)' | cmp -s - $@ || echo '$(LDFLAGS)' > $@
344 # We have to use static rules for the .d files for some reason
345 DEPS = $(patsubst %.o,%.d,$(OBJ))
348 # Empty rule to force recompilation if the .d file is missing
352 $(foreach OUTPUT,$(OUTPUTS),$(eval $(call GEN_OBJRULE,$(OUTPUT))))
354 # Create preprocessed source for use in sending a bug report.
356 $(CC) -E -mmcu=$(MCU) $(CFLAGS) $< -o $@
358 # Target: clean project.
360 $(foreach OUTPUT,$(OUTPUTS), $(REMOVE) -r $(OUTPUT) 2>/dev/null)
361 $(REMOVE) $(BUILD_DIR)/$(TARGET).*
368 # Create build directory
369 $(shell mkdir -p $(BUILD_DIR) 2>/dev/null)
371 # Create object files directory
372 $(eval $(foreach OUTPUT,$(OUTPUTS),$(shell mkdir -p $(OUTPUT) 2>/dev/null)))
374 # Include the dependency files.
375 -include $(patsubst %.o,%.d,$(OBJ))
378 # Listing of phony targets.
379 .PHONY : all finish sizebefore sizeafter gccversion \
380 build elf hex eep lss sym coff extcoff \
381 clean clean_list debug gdb-config show_path \
382 program teensy dfu flip dfu-ee flip-ee dfu-start