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 # On command line:
  19 #
  20 # make all = Make software.
  21 #
  22 # make clean = Clean out built project files.
  23 #
  24 # make coff = Convert ELF to AVR COFF.
  25 #
  26 # make extcoff = Convert ELF to AVR Extended COFF.
  27 #
  28 # make program = Download the hex file to the device, using avrdude.
  29 #                Please customize the avrdude settings below first!
  30 #
  31 # make debug = Start either simulavr or avarice as specified for debugging,
  32 #              with avr-gdb or avr-insight as the front end for debugging.
  33 #
  34 # make filename.s = Just compile filename.c into the assembler code only.
  35 #
  36 # make filename.i = Create a preprocessed source file for use in submitting
  37 #                   bug reports to the GCC project.
  38 #
  39 # To rebuild project do "make clean" then "make all".
  40 #----------------------------------------------------------------------------
  41
  42
  43 # Output format. (can be srec, ihex, binary)
  44 FORMAT = ihex
  45
  46
  47 # Object files directory
  48 #     To put object files in current directory, use a dot (.), do NOT make
  49 #     this an empty or blank macro!
  50 OBJDIR = obj_$(TARGET)
  51
  52
  53 # Optimization level, can be [0, 1, 2, 3, s].
  54 #     0 = turn off optimization. s = optimize for size.
  55 #     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
  56 OPT = s
  57
  58
  59 # Debugging format.
  60 #     Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
  61 #     AVR Studio 4.10 requires dwarf-2.
  62 #     AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
  63 DEBUG = dwarf-2
  64
  65
  66 # List any extra directories to look for include files here.
  67 #     Each directory must be seperated by a space.
  68 #     Use forward slashes for directory separators.
  69 #     For a directory that has spaces, enclose it in quotes.
  70 EXTRAINCDIRS = $(subst :, ,$(VPATH))
  71
  72
  73 # Compiler flag to set the C Standard level.
  74 #     c89   = "ANSI" C
  75 #     gnu89 = c89 plus GCC extensions
  76 #     c99   = ISO C99 standard (not yet fully implemented)
  77 #     gnu99 = c99 plus GCC extensions
  78 CSTANDARD = -std=gnu99
  79
  80
  81 # Place -D or -U options here for C sources
  82 CDEFS = -DF_CPU=$(F_CPU)UL
  83 CDEFS += $(OPT_DEFS)
  84
  85
  86 # Place -D or -U options here for ASM sources
  87 ADEFS = -DF_CPU=$(F_CPU)
  88 ADEFS += $(OPT_DEFS)
  89
  90
  91 # Place -D or -U options here for C++ sources
  92 CPPDEFS = -DF_CPU=$(F_CPU)UL
  93 #CPPDEFS += -D__STDC_LIMIT_MACROS
  94 #CPPDEFS += -D__STDC_CONSTANT_MACROS
  95 CPPDEFS += $(OPT_DEFS)
  96
  97
  98
  99 #---------------- Compiler Options C ----------------
 100 #  -g*:          generate debugging information
 101 #  -O*:          optimization level
 102 #  -f...:        tuning, see GCC manual and avr-libc documentation
 103 #  -Wall...:     warning level
 104 #  -Wa,...:      tell GCC to pass this to the assembler.
 105 #    -adhlns...: create assembler listing
 106 CFLAGS = -g$(DEBUG)
 107 CFLAGS += $(CDEFS)
 108 CFLAGS += -O$(OPT)
 109 CFLAGS += -funsigned-char
 110 CFLAGS += -funsigned-bitfields
 111 CFLAGS += -ffunction-sections
 112 CFLAGS += -fpack-struct
 113 CFLAGS += -fshort-enums
 114 CFLAGS += -Wall
 115 CFLAGS += -Wstrict-prototypes
 116 #CFLAGS += -mshort-calls
 117 #CFLAGS += -fno-unit-at-a-time
 118 #CFLAGS += -Wundef
 119 #CFLAGS += -Wunreachable-code
 120 #CFLAGS += -Wsign-compare
 121 CFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
 122 CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
 123 CFLAGS += $(CSTANDARD)
 124 ifdef CONFIG_H
 125     CFLAGS += -include $(CONFIG_H)
 126 endif
 127
 128
 129 #---------------- Compiler Options C++ ----------------
 130 #  -g*:          generate debugging information
 131 #  -O*:          optimization level
 132 #  -f...:        tuning, see GCC manual and avr-libc documentation
 133 #  -Wall...:     warning level
 134 #  -Wa,...:      tell GCC to pass this to the assembler.
 135 #    -adhlns...: create assembler listing
 136 CPPFLAGS = -g$(DEBUG)
 137 CPPFLAGS += $(CPPDEFS)
 138 CPPFLAGS += -O$(OPT)
 139 CPPFLAGS += -funsigned-char
 140 CPPFLAGS += -funsigned-bitfields
 141 CPPFLAGS += -fpack-struct
 142 CPPFLAGS += -fshort-enums
 143 CPPFLAGS += -fno-exceptions
 144 CPPFLAGS += -Wall
 145 CPPFLAGS += -Wundef
 146 #CPPFLAGS += -mshort-calls
 147 #CPPFLAGS += -fno-unit-at-a-time
 148 #CPPFLAGS += -Wstrict-prototypes
 149 #CPPFLAGS += -Wunreachable-code
 150 #CPPFLAGS += -Wsign-compare
 151 CPPFLAGS += -Wa,-adhlns=$(@:%.o=%.lst)
 152 CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
 153 #CPPFLAGS += $(CSTANDARD)
 154 ifdef CONFIG_H
 155     CPPFLAGS += -include $(CONFIG_H)
 156 endif
 157
 158
 159 #---------------- Assembler Options ----------------
 160 #  -Wa,...:   tell GCC to pass this to the assembler.
 161 #  -adhlns:   create listing
 162 #  -gstabs:   have the assembler create line number information; note that
 163 #             for use in COFF files, additional information about filenames
 164 #             and function names needs to be present in the assembler source
 165 #             files -- see avr-libc docs [FIXME: not yet described there]
 166 #  -listing-cont-lines: Sets the maximum number of continuation lines of hex
 167 #       dump that will be displayed for a given single line of source input.
 168 ASFLAGS = $(ADEFS) -Wa,-adhlns=$(@:%.o=%.lst),-gstabs,--listing-cont-lines=100
 169 ifdef CONFIG_H
 170     ASFLAGS += -include $(CONFIG_H)
 171 endif
 172
 173
 174 #---------------- Library Options ----------------
 175 # Minimalistic printf version
 176 PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
 177
 178 # Floating point printf version (requires MATH_LIB = -lm below)
 179 PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
 180
 181 # If this is left blank, then it will use the Standard printf version.
 182 PRINTF_LIB =
 183 #PRINTF_LIB = $(PRINTF_LIB_MIN)
 184 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
 185
 186
 187 # Minimalistic scanf version
 188 SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
 189
 190 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
 191 SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
 192
 193 # If this is left blank, then it will use the Standard scanf version.
 194 SCANF_LIB =
 195 #SCANF_LIB = $(SCANF_LIB_MIN)
 196 #SCANF_LIB = $(SCANF_LIB_FLOAT)
 197
 198
 199 MATH_LIB = -lm
 200
 201
 202 # List any extra directories to look for libraries here.
 203 #     Each directory must be seperated by a space.
 204 #     Use forward slashes for directory separators.
 205 #     For a directory that has spaces, enclose it in quotes.
 206 EXTRALIBDIRS =
 207
 208
 209
 210 #---------------- External Memory Options ----------------
 211
 212 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
 213 # used for variables (.data/.bss) and heap (malloc()).
 214 #EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
 215
 216 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
 217 # only used for heap (malloc()).
 218 #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
 219
 220 EXTMEMOPTS =
 221
 222
 223
 224 #---------------- Linker Options ----------------
 225 #  -Wl,...:     tell GCC to pass this to linker.
 226 #    -Map:      create map file
 227 #    --cref:    add cross reference to  map file
 228 #
 229 # Comennt out "--relax" option to avoid a error such:
 230 #       (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
 231 #
 232 LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
 233 #LDFLAGS += -Wl,--relax
 234 LDFLAGS += -Wl,--gc-sections
 235 LDFLAGS += $(EXTMEMOPTS)
 236 LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
 237 LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
 238 #LDFLAGS += -T linker_script.x
 239 # You can give EXTRALDFLAGS at 'make' command line.
 240 LDFLAGS += $(EXTRALDFLAGS)
 241
 242
 243
 244 #---------------- Debugging Options ----------------
 245
 246 # For simulavr only - target MCU frequency.
 247 DEBUG_MFREQ = $(F_CPU)
 248
 249 # Set the DEBUG_UI to either gdb or insight.
 250 # DEBUG_UI = gdb
 251 DEBUG_UI = insight
 252
 253 # Set the debugging back-end to either avarice, simulavr.
 254 DEBUG_BACKEND = avarice
 255 #DEBUG_BACKEND = simulavr
 256
 257 # GDB Init Filename.
 258 GDBINIT_FILE = __avr_gdbinit
 259
 260 # When using avarice settings for the JTAG
 261 JTAG_DEV = /dev/com1
 262
 263 # Debugging port used to communicate between GDB / avarice / simulavr.
 264 DEBUG_PORT = 4242
 265
 266 # Debugging host used to communicate between GDB / avarice / simulavr, normally
 267 #     just set to localhost unless doing some sort of crazy debugging when
 268 #     avarice is running on a different computer.
 269 DEBUG_HOST = localhost
 270
 271
 272
 273 #============================================================================
 274
 275
 276 # Define programs and commands.
 277 SHELL = sh
 278 CC = avr-gcc
 279 OBJCOPY = avr-objcopy
 280 OBJDUMP = avr-objdump
 281 SIZE = avr-size
 282 AR = avr-ar rcs
 283 NM = avr-nm
 284 REMOVE = rm -f
 285 REMOVEDIR = rmdir
 286 COPY = cp
 287 WINSHELL = cmd
 288
 289
 290 # Define Messages
 291 # English
 292 MSG_ERRORS_NONE = Errors: none
 293 MSG_BEGIN = -------- begin --------
 294 MSG_END = --------  end  --------
 295 MSG_SIZE_BEFORE = Size before:
 296 MSG_SIZE_AFTER = Size after:
 297 MSG_COFF = Converting to AVR COFF:
 298 MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
 299 MSG_FLASH = Creating load file for Flash:
 300 MSG_EEPROM = Creating load file for EEPROM:
 301 MSG_EXTENDED_LISTING = Creating Extended Listing:
 302 MSG_SYMBOL_TABLE = Creating Symbol Table:
 303 MSG_LINKING = Linking:
 304 MSG_COMPILING = Compiling C:
 305 MSG_COMPILING_CPP = Compiling C++:
 306 MSG_ASSEMBLING = Assembling:
 307 MSG_CLEANING = Cleaning project:
 308 MSG_CREATING_LIBRARY = Creating library:
 309
 310
 311
 312
 313 # Define all object files.
 314 OBJ = $(patsubst %.c,$(OBJDIR)/%.o,$(patsubst %.cpp,$(OBJDIR)/%.o,$(patsubst %.S,$(OBJDIR)/%.o,$(SRC))))
 315
 316 # Define all listing files.
 317 LST = $(patsubst %.c,$(OBJDIR)/%.lst,$(patsubst %.cpp,$(OBJDIR)/%.lst,$(patsubst %.S,$(OBJDIR)/%.lst,$(SRC))))
 318
 319
 320 # Compiler flags to generate dependency files.
 321 GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
 322
 323
 324 # Combine all necessary flags and optional flags.
 325 # Add target processor to flags.
 326 # You can give extra flags at 'make' command line like: make EXTRAFLAGS=-DFOO=bar
 327 ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS) $(EXTRAFLAGS)
 328 ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS) $(EXTRAFLAGS)
 329 ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) $(EXTRAFLAGS)
 330
 331
 332
 333
 334
 335 # Default target.
 336 all: begin gccversion sizebefore build sizeafter end
 337
 338 # Change the build target to build a HEX file or a library.
 339 build: elf hex eep lss sym
 340 #build: lib
 341
 342
 343 elf: $(TARGET).elf
 344 hex: $(TARGET).hex
 345 eep: $(TARGET).eep
 346 lss: $(TARGET).lss
 347 sym: $(TARGET).sym
 348 LIBNAME=lib$(TARGET).a
 349 lib: $(LIBNAME)
 350
 351
 352
 353 # Eye candy.
 354 # AVR Studio 3.x does not check make's exit code but relies on
 355 # the following magic strings to be generated by the compile job.
 356 begin:
 357         @echo
 358         @echo $(MSG_BEGIN)
 359
 360 end:
 361         @echo $(MSG_END)
 362         @echo
 363
 364
 365 # Display size of file.
 366 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
 367 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
 368 ELFSIZE = $(SIZE) $(TARGET).elf
 369
 370 sizebefore:
 371         @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
 372         2>/dev/null; echo; fi
 373
 374 sizeafter:
 375         @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
 376         2>/dev/null; echo; fi
 377
 378
 379
 380 # Display compiler version information.
 381 gccversion :
 382         @$(CC) --version
 383
 384
 385
 386 # Program the device.
 387 program: $(TARGET).hex $(TARGET).eep
 388         $(PROGRAM_CMD)
 389
 390
 391 # Generate avr-gdb config/init file which does the following:
 392 #     define the reset signal, load the target file, connect to target, and set
 393 #     a breakpoint at main().
 394 gdb-config:
 395         @$(REMOVE) $(GDBINIT_FILE)
 396         @echo define reset >> $(GDBINIT_FILE)
 397         @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
 398         @echo end >> $(GDBINIT_FILE)
 399         @echo file $(TARGET).elf >> $(GDBINIT_FILE)
 400         @echo target remote $(DEBUG_HOST):$(DEBUG_PORT)  >> $(GDBINIT_FILE)
 401 ifeq ($(DEBUG_BACKEND),simulavr)
 402         @echo load  >> $(GDBINIT_FILE)
 403 endif
 404         @echo break main >> $(GDBINIT_FILE)
 405
 406 debug: gdb-config $(TARGET).elf
 407 ifeq ($(DEBUG_BACKEND), avarice)
 408         @echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
 409         @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
 410         $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
 411         @$(WINSHELL) /c pause
 412
 413 else
 414         @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
 415         $(DEBUG_MFREQ) --port $(DEBUG_PORT)
 416 endif
 417         @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
 418
 419
 420
 421
 422 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
 423 COFFCONVERT = $(OBJCOPY) --debugging
 424 COFFCONVERT += --change-section-address .data-0x800000
 425 COFFCONVERT += --change-section-address .bss-0x800000
 426 COFFCONVERT += --change-section-address .noinit-0x800000
 427 COFFCONVERT += --change-section-address .eeprom-0x810000
 428
 429
 430
 431 coff: $(TARGET).elf
 432         @echo
 433         @echo $(MSG_COFF) $(TARGET).cof
 434         $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
 435
 436
 437 extcoff: $(TARGET).elf
 438         @echo
 439         @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
 440         $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
 441
 442
 443
 444 # Create final output files (.hex, .eep) from ELF output file.
 445 %.hex: %.elf
 446         @echo
 447         @echo $(MSG_FLASH) $@
 448         $(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature $< $@
 449
 450 %.eep: %.elf
 451         @echo
 452         @echo $(MSG_EEPROM) $@
 453         -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
 454         --change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0
 455
 456 # Create extended listing file from ELF output file.
 457 %.lss: %.elf
 458         @echo
 459         @echo $(MSG_EXTENDED_LISTING) $@
 460         $(OBJDUMP) -h -S -z $< > $@
 461
 462 # Create a symbol table from ELF output file.
 463 %.sym: %.elf
 464         @echo
 465         @echo $(MSG_SYMBOL_TABLE) $@
 466         $(NM) -n $< > $@
 467
 468
 469
 470 # Create library from object files.
 471 .SECONDARY : $(TARGET).a
 472 .PRECIOUS : $(OBJ)
 473 %.a: $(OBJ)
 474         @echo
 475         @echo $(MSG_CREATING_LIBRARY) $@
 476         $(AR) $@ $(OBJ)
 477
 478
 479 # Link: create ELF output file from object files.
 480 .SECONDARY : $(TARGET).elf
 481 .PRECIOUS : $(OBJ)
 482 %.elf: $(OBJ)
 483         @echo
 484         @echo $(MSG_LINKING) $@
 485         $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
 486
 487
 488 # Compile: create object files from C source files.
 489 $(OBJDIR)/%.o : %.c
 490         @echo
 491         @echo $(MSG_COMPILING) $<
 492         $(CC) -c $(ALL_CFLAGS) $< -o $@
 493
 494
 495 # Compile: create object files from C++ source files.
 496 $(OBJDIR)/%.o : %.cpp
 497         @echo
 498         @echo $(MSG_COMPILING_CPP) $<
 499         $(CC) -c $(ALL_CPPFLAGS) $< -o $@
 500
 501
 502 # Compile: create assembler files from C source files.
 503 %.s : %.c
 504         $(CC) -S $(ALL_CFLAGS) $< -o $@
 505
 506
 507 # Compile: create assembler files from C++ source files.
 508 %.s : %.cpp
 509         $(CC) -S $(ALL_CPPFLAGS) $< -o $@
 510
 511
 512 # Assemble: create object files from assembler source files.
 513 $(OBJDIR)/%.o : %.S
 514         @echo
 515         @echo $(MSG_ASSEMBLING) $<
 516         $(CC) -c $(ALL_ASFLAGS) $< -o $@
 517
 518
 519 # Create preprocessed source for use in sending a bug report.
 520 %.i : %.c
 521         $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
 522
 523
 524 # Target: clean project.
 525 clean: begin clean_list end
 526
 527 clean_list :
 528         @echo
 529         $(REMOVE) $(TARGET).hex
 530         $(REMOVE) $(TARGET).eep
 531         $(REMOVE) $(TARGET).cof
 532         $(REMOVE) $(TARGET).elf
 533         $(REMOVE) $(TARGET).map
 534         $(REMOVE) $(TARGET).sym
 535         $(REMOVE) $(TARGET).lss
 536         $(REMOVE) $(OBJ)
 537         $(REMOVE) $(LST)
 538         $(REMOVE) $(OBJ:.o=.s)
 539         $(REMOVE) $(OBJ:.o=.i)
 540         $(REMOVE) -r .dep
 541         $(REMOVEDIR) $(OBJDIR)
 542
 543
 544 # Create object files directory
 545 $(shell mkdir $(OBJDIR) 2>/dev/null)
 546
 547
 548 # Include the dependency files.
 549 -include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
 550
 551
 552 # Listing of phony targets.
 553 .PHONY : all begin finish end sizebefore sizeafter gccversion \
 554 build elf hex eep lss sym coff extcoff \
 555 clean clean_list program debug gdb-config
 556