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