tmk_core/rules.mk

   1 # Hey Emacs, this is a -*- makefile -*-
   2 #----------------------------------------------------------------------------
   3 # WinAVR Makefile Template written by Eric B. Weddington, Jg Wunsch, et al.
   4 #
   5 # Released to the Public Domain
   6 #
   7 # Additional material for this makefile was written by:
   8 # Peter Fleury
   9 # Tim Henigan
  10 # Colin O'Flynn
  11 # Reiner Patommel
  12 # Markus Pfaff
  13 # Sander Pool
  14 # Frederik Rouleau
  15 # Carlos Lamas
  16 #
  17
  18 # Enable vpath seraching for source files only
  19 # Without this, output files, could be read from the wrong .build directories
  20 VPATH_SRC := $(VPATH)
  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)
  27 VPATH :=
  28
  29 # Convert all SRC to OBJ
  30 define OBJ_FROM_SRC
  31 $(patsubst %.c,$1/%.o,$(patsubst %.cpp,$1/%.o,$(patsubst %.cc,$1/%.o,$(patsubst %.S,$1/%.o,$($1_SRC)))))
  32 endef
  33 $(foreach OUTPUT,$(OUTPUTS),$(eval $(OUTPUT)_OBJ +=$(call OBJ_FROM_SRC,$(OUTPUT))))
  34
  35 # Define a list of all objects
  36 OBJ := $(foreach OUTPUT,$(OUTPUTS),$($(OUTPUT)_OBJ))
  37
  38 MASTER_OUTPUT := $(firstword $(OUTPUTS))
  39
  40
  41
  42 # Output format. (can be srec, ihex, binary)
  43 FORMAT = ihex
  44
  45 # Optimization level, can be [0, 1, 2, 3, s].
  46 #     0 = turn off optimization. s = optimize for size.
  47 #     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
  48 OPT = s
  49
  50 AUTOGEN ?= false
  51
  52
  53 # Compiler flag to set the C Standard level.
  54 #     c89   = "ANSI" C
  55 #     gnu89 = c89 plus GCC extensions
  56 #     c99   = ISO C99 standard (not yet fully implemented)
  57 #     gnu99 = c99 plus GCC extensions
  58 CSTANDARD = -std=gnu99
  59
  60
  61 # Place -D or -U options here for C sources
  62 #CDEFS +=
  63
  64
  65 # Place -D or -U options here for ASM sources
  66 #ADEFS +=
  67
  68
  69 # Place -D or -U options here for C++ sources
  70 #CPPDEFS += -D__STDC_LIMIT_MACROS
  71 #CPPDEFS += -D__STDC_CONSTANT_MACROS
  72 #CPPDEFS +=
  73
  74
  75
  76
  77 #---------------- Compiler Options C ----------------
  78 #  -g*:          generate debugging information
  79 #  -O*:          optimization level
  80 #  -f...:        tuning, see GCC manual and avr-libc documentation
  81 #  -Wall...:     warning level
  82 #  -Wa,...:      tell GCC to pass this to the assembler.
  83 #    -adhlns...: create assembler listing
  84 CFLAGS += -g$(DEBUG)
  85 CFLAGS += $(CDEFS)
  86 CFLAGS += -O$(OPT)
  87 # add color
  88 ifeq ($(COLOR),true)
  89 ifeq ("$(shell echo "int main(){}" | $(CC) -fdiagnostics-color -x c - -o /dev/null 2>&1)", "")
  90         CFLAGS+= -fdiagnostics-color
  91 endif
  92 endif
  93 CFLAGS += -Wall
  94 CFLAGS += -Wstrict-prototypes
  95 ifneq ($(strip $(ALLOW_WARNINGS)), yes)
  96     CFLAGS += -Werror
  97 endif
  98 #CFLAGS += -mshort-calls
  99 #CFLAGS += -fno-unit-at-a-time
 100 #CFLAGS += -Wundef
 101 #CFLAGS += -Wunreachable-code
 102 #CFLAGS += -Wsign-compare
 103 CFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
 104 CFLAGS += $(CSTANDARD)
 105
 106
 107 #---------------- Compiler Options C++ ----------------
 108 #  -g*:          generate debugging information
 109 #  -O*:          optimization level
 110 #  -f...:        tuning, see GCC manual and avr-libc documentation
 111 #  -Wall...:     warning level
 112 #  -Wa,...:      tell GCC to pass this to the assembler.
 113 #    -adhlns...: create assembler listing
 114 CPPFLAGS += -g$(DEBUG)
 115 CPPFLAGS += $(CPPDEFS)
 116 CPPFLAGS += -O$(OPT)
 117 # to supress "warning: only initialized variables can be placed into program memory area"
 118 CPPFLAGS += -w
 119 CPPFLAGS += -Wall
 120 CPPFLAGS += -Wundef
 121 ifneq ($(strip $(ALLOW_WARNINGS)), yes)
 122     CPPFLAGS += -Werror
 123 endif
 124 #CPPFLAGS += -mshort-calls
 125 #CPPFLAGS += -fno-unit-at-a-time
 126 #CPPFLAGS += -Wstrict-prototypes
 127 #CPPFLAGS += -Wunreachable-code
 128 #CPPFLAGS += -Wsign-compare
 129 CPPFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
 130 #CPPFLAGS += $(CSTANDARD)
 131
 132 #---------------- Assembler Options ----------------
 133 #  -Wa,...:   tell GCC to pass this to the assembler.
 134 #  -adhlns:   create listing
 135 #  -gstabs:   have the assembler create line number information; note that
 136 #             for use in COFF files, additional information about filenames
 137 #             and function names needs to be present in the assembler source
 138 #             files -- see avr-libc docs [FIXME: not yet described there]
 139 #  -listing-cont-lines: Sets the maximum number of continuation lines of hex
 140 #       dump that will be displayed for a given single line of source input.
 141 ASFLAGS += $(ADEFS)
 142 ASFLAGS += -Wa,-adhlns=$(@:%.o=%.lst),-gstabs,--listing-cont-lines=100
 143
 144 #---------------- Library Options ----------------
 145 # Minimalistic printf version
 146 PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
 147
 148 # Floating point printf version (requires MATH_LIB = -lm below)
 149 PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
 150
 151 # If this is left blank, then it will use the Standard printf version.
 152 PRINTF_LIB =
 153 #PRINTF_LIB = $(PRINTF_LIB_MIN)
 154 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
 155
 156
 157 # Minimalistic scanf version
 158 SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
 159
 160 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
 161 SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
 162
 163 # If this is left blank, then it will use the Standard scanf version.
 164 SCANF_LIB =
 165 #SCANF_LIB = $(SCANF_LIB_MIN)
 166 #SCANF_LIB = $(SCANF_LIB_FLOAT)
 167
 168
 169 MATH_LIB = -lm
 170 CREATE_MAP ?= yes
 171
 172
 173 #---------------- Linker Options ----------------
 174 #  -Wl,...:     tell GCC to pass this to linker.
 175 #    -Map:      create map file
 176 #    --cref:    add cross reference to  map file
 177 #
 178 # Comennt out "--relax" option to avoid a error such:
 179 #       (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
 180 #
 181
 182 ifeq ($(CREATE_MAP),yes)
 183         LDFLAGS += -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref
 184 endif
 185 #LDFLAGS += -Wl,--relax
 186 LDFLAGS += $(EXTMEMOPTS)
 187 LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
 188 LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
 189 #LDFLAGS += -T linker_script.x
 190 # You can give EXTRALDFLAGS at 'make' command line.
 191 LDFLAGS += $(EXTRALDFLAGS)
 192
 193 # Define programs and commands.
 194 SHELL = sh
 195 REMOVE = rm -f
 196 REMOVEDIR = rmdir
 197 COPY = cp
 198 WINSHELL = cmd
 199 SECHO = $(SILENT) || echo
 200
 201
 202 # Compiler flags to generate dependency files.
 203 #GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
 204 GENDEPFLAGS = -MMD -MP -MF $(patsubst %.o,%.td,$@)
 205
 206
 207 # Combine all necessary flags and optional flags.
 208 # Add target processor to flags.
 209 # You can give extra flags at 'make' command line like: make EXTRAFLAGS=-DFOO=bar
 210 ALL_CFLAGS = $(MCUFLAGS) $(CFLAGS) $(EXTRAFLAGS)
 211 ALL_CPPFLAGS = $(MCUFLAGS) -x c++ $(CPPFLAGS) $(EXTRAFLAGS)
 212 ALL_ASFLAGS = $(MCUFLAGS) -x assembler-with-cpp $(ASFLAGS) $(EXTRAFLAGS)
 213
 214 MOVE_DEP = mv -f $(patsubst %.o,%.td,$@) $(patsubst %.o,%.d,$@)
 215
 216
 217 elf: $(BUILD_DIR)/$(TARGET).elf
 218 hex: $(BUILD_DIR)/$(TARGET).hex
 219 eep: $(BUILD_DIR)/$(TARGET).eep
 220 lss: $(BUILD_DIR)/$(TARGET).lss
 221 sym: $(BUILD_DIR)/$(TARGET).sym
 222 LIBNAME=lib$(TARGET).a
 223 lib: $(LIBNAME)
 224
 225 # Display size of file.
 226 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
 227 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
 228 ELFSIZE = $(SIZE) $(BUILD_DIR)/$(TARGET).elf
 229
 230 sizebefore:
 231         @if test -f $(TARGET).hex; then $(SECHO) $(MSG_SIZE_BEFORE); $(SILENT) || $(HEXSIZE); \
 232         2>/dev/null; $(SECHO); fi
 233
 234 sizeafter: $(BUILD_DIR)/$(TARGET).hex
 235         @if test -f $(TARGET).hex; then $(SECHO); $(SECHO) $(MSG_SIZE_AFTER); $(SILENT) || $(HEXSIZE); \
 236         2>/dev/null; $(SECHO); fi
 237         # test file sizes eventually
 238         # @if [[ $($(SIZE) --target=$(FORMAT) $(TARGET).hex | $(AWK) 'NR==2 {print "0x"$5}') -gt 0x200 ]]; then $(SECHO) "File is too big!"; fi
 239
 240 # Display compiler version information.
 241 gccversion :
 242         @$(SILENT) || $(CC) --version
 243
 244 # Create final output files (.hex, .eep) from ELF output file.
 245 %.hex: %.elf
 246         @$(SILENT) || printf "$(MSG_FLASH) $@" | $(AWK_CMD)
 247         $(eval CMD=$(HEX) $< $@)
 248         @$(BUILD_CMD)
 249         @if $(AUTOGEN); then \
 250                 $(SILENT) || printf "Copying $(TARGET).hex to keymaps/$(KEYMAP)/$(KEYBOARD)_$(KEYMAP).hex\n"; \
 251                 $(COPY) $@ $(KEYMAP_PATH)/$(KEYBOARD)_$(KEYMAP).hex; \
 252         else \
 253                 $(COPY) $@ $(TARGET).hex; \
 254         fi
 255
 256 %.eep: %.elf
 257         @$(SILENT) || printf "$(MSG_EEPROM) $@" | $(AWK_CMD)
 258         $(eval CMD=$(EEP) $< $@ || exit 0)
 259         @$(BUILD_CMD)
 260
 261 # Create extended listing file from ELF output file.
 262 %.lss: %.elf
 263         @$(SILENT) || printf "$(MSG_EXTENDED_LISTING) $@" | $(AWK_CMD)
 264         $(eval CMD=$(OBJDUMP) -h -S -z $< > $@)
 265         @$(BUILD_CMD)
 266
 267 # Create a symbol table from ELF output file.
 268 %.sym: %.elf
 269         @$(SILENT) || printf "$(MSG_SYMBOL_TABLE) $@" | $(AWK_CMD)
 270         $(eval CMD=$(NM) -n $< > $@ )
 271         @$(BUILD_CMD)
 272
 273 %.bin: %.elf
 274         @$(SILENT) || printf "$(MSG_BIN) $@" | $(AWK_CMD)
 275         $(eval CMD=$(BIN) $< $@ || exit 0)
 276         @$(BUILD_CMD)
 277
 278 BEGIN = gccversion sizebefore
 279
 280 # Link: create ELF output file from object files.
 281 .SECONDARY : $(BUILD_DIR)/$(TARGET).elf
 282 .PRECIOUS : $(OBJ)
 283 # Note the obj.txt depeendency is there to force linking if a source file is deleted
 284 %.elf: $(OBJ) $(MASTER_OUTPUT)/cflags.txt $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/obj.txt | $(BEGIN)
 285         @$(SILENT) || printf "$(MSG_LINKING) $@" | $(AWK_CMD)
 286         $(eval CMD=$(CC) $(ALL_CFLAGS) $(filter-out %.txt,$^) --output $@ $(LDFLAGS))
 287         @$(BUILD_CMD)
 288
 289
 290 define GEN_OBJRULE
 291 $1_INCFLAGS := $$(patsubst %,-I%,$$($1_INC))
 292 ifdef $1_CONFIG
 293 $1_CONFIG_FLAGS += -include $$($1_CONFIG)
 294 endif
 295 $1_CFLAGS = $$(ALL_CFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
 296 $1_CPPFLAGS= $$(ALL_CPPFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
 297 $1_ASFLAGS= $$(ALL_ASFLAGS) $$($1_DEFS) $$($1_INCFLAGS) $$($1_CONFIG_FLAGS)
 298
 299 # Compile: create object files from C source files.
 300 $1/%.o : %.c $1/%.d $1/cflags.txt $1/compiler.txt | $(BEGIN)
 301         @mkdir -p $$(@D)
 302         @$$(SILENT) || printf "$$(MSG_COMPILING) $$<" | $$(AWK_CMD)
 303         $$(eval CMD := $$(CC) -c $$($1_CFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
 304         @$$(BUILD_CMD)
 305
 306 # Compile: create object files from C++ source files.
 307 $1/%.o : %.cpp $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN)
 308         @mkdir -p $$(@D)
 309         @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD)
 310         $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
 311         @$$(BUILD_CMD)
 312
 313 $1/%.o : %.cc $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN)
 314         @mkdir -p $$(@D)
 315         @$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD)
 316         $$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
 317         @$$(BUILD_CMD)
 318
 319 # Assemble: create object files from assembler source files.
 320 $1/%.o : %.S $1/asflags.txt $1/compiler.txt | $(BEGIN)
 321         @mkdir -p $$(@D)
 322         @$(SILENT) || printf "$$(MSG_ASSEMBLING) $$<" | $$(AWK_CMD)
 323         $$(eval CMD=$$(CC) -c $$($1_ASFLAGS) $$< -o $$@)
 324         @$$(BUILD_CMD)
 325
 326 $1/force:
 327
 328 $1/cflags.txt: $1/force
 329         echo '$$($1_CFLAGS)' | cmp -s - $$@ || echo '$$($1_CFLAGS)' > $$@
 330
 331 $1/cppflags.txt: $1/force
 332         echo '$$($1_CPPFLAGS)' | cmp -s - $$@ || echo '$$($1_CPPFLAGS)' > $$@
 333
 334 $1/asflags.txt: $1/force
 335         echo '$$($1_ASFLAGS)' | cmp -s - $$@ || echo '$$($1_ASFLAGS)' > $$@
 336
 337 $1/compiler.txt: $1/force
 338         $$(CC) --version | cmp -s - $$@ || $$(CC) --version > $$@
 339 endef
 340
 341 .PRECIOUS: $(MASTER_OUTPUT)/obj.txt
 342 $(MASTER_OUTPUT)/obj.txt: $(MASTER_OUTPUT)/force
 343         echo '$(OBJ)' | cmp -s - $@ || echo '$(OBJ)' > $@
 344
 345 .PRECIOUS: $(MASTER_OUTPUT)/ldflags.txt
 346 $(MASTER_OUTPUT)/ldflags.txt: $(MASTER_OUTPUT)/force
 347         echo '$(LDFLAGS)' | cmp -s - $@ || echo '$(LDFLAGS)' > $@
 348
 349
 350 # We have to use static rules for the .d files for some reason
 351 DEPS = $(patsubst %.o,%.d,$(OBJ))
 352 # Keep the .d files
 353 .PRECIOUS: $(DEPS)
 354 # Empty rule to force recompilation if the .d file is missing
 355 $(DEPS):
 356
 357
 358 $(foreach OUTPUT,$(OUTPUTS),$(eval $(call GEN_OBJRULE,$(OUTPUT))))
 359
 360 # Create preprocessed source for use in sending a bug report.
 361 %.i : %.c | $(BEGIN)
 362         $(CC) -E -mmcu=$(MCU) $(CFLAGS) $< -o $@
 363
 364 # Target: clean project.
 365 clean:
 366         $(foreach OUTPUT,$(OUTPUTS), $(REMOVE) -r $(OUTPUT) 2>/dev/null)
 367         $(REMOVE) $(BUILD_DIR)/$(TARGET).*
 368
 369 show_path:
 370         @echo VPATH=$(VPATH)
 371         @echo SRC=$(SRC)
 372         @echo OBJ=$(OBJ)
 373
 374 # Create build directory
 375 $(shell mkdir -p $(BUILD_DIR) 2>/dev/null)
 376
 377 # Create object files directory
 378 $(eval $(foreach OUTPUT,$(OUTPUTS),$(shell mkdir -p $(OUTPUT) 2>/dev/null)))
 379
 380 # Include the dependency files.
 381 -include $(patsubst %.o,%.d,$(OBJ))
 382
 383
 384 # Listing of phony targets.
 385 .PHONY : all finish sizebefore sizeafter gccversion \
 386 build elf hex eep lss sym coff extcoff \
 387 clean clean_list debug gdb-config show_path \
 388 program teensy dfu flip dfu-ee flip-ee dfu-start