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:
17 #----------------------------------------------------------------------------
20 # make all = Make software.
22 # make clean = Clean out built project files.
24 # make coff = Convert ELF to AVR COFF.
26 # make extcoff = Convert ELF to AVR Extended COFF.
28 # make program = Download the hex file to the device, using avrdude.
29 # Please customize the avrdude settings below first!
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.
34 # make filename.s = Just compile filename.c into the assembler code only.
36 # make filename.i = Create a preprocessed source file for use in submitting
37 # bug reports to the GCC project.
39 # To rebuild project do "make clean" then "make all".
40 #----------------------------------------------------------------------------
43 # Output format. (can be srec, ihex, binary)
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
)
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.)
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.
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
))
73 # Compiler flag to set the C Standard level.
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
81 # Place -D or -U options here for C sources
82 CDEFS
= -DF_CPU
=$(F_CPU
)UL
86 # Place -D or -U options here for ASM sources
87 ADEFS
= -DF_CPU
=$(F_CPU
)
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
+= $(OPT_DEFS
)
99 #---------------- Compiler Options C ----------------
100 # -g*: generate debugging information
101 # -O*: optimization level
102 # -f...: tuning, see GCC manual and avr-libc documentation
103 # -Wall...: warning level
104 # -Wa,...: tell GCC to pass this to the assembler.
105 # -adhlns...: create assembler listing
109 CFLAGS
+= -funsigned-char
110 CFLAGS
+= -funsigned-bitfields
111 CFLAGS
+= -ffunction-sections
112 CFLAGS
+= -fpack-struct
113 CFLAGS
+= -fshort-enums
115 CFLAGS
+= -Wstrict-prototypes
116 #CFLAGS += -mshort-calls
117 #CFLAGS += -fno-unit-at-a-time
119 #CFLAGS += -Wunreachable-code
120 #CFLAGS += -Wsign-compare
121 CFLAGS
+= -Wa
,-adhlns
=$(@
:%.o
=%.lst
)
122 CFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
123 CFLAGS
+= $(CSTANDARD
)
124 CFLAGS
+= -include $(CONFIG_H
)
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
+= $(CPPDEFS
)
137 CPPFLAGS
+= -funsigned-char
138 CPPFLAGS
+= -funsigned-bitfields
139 CPPFLAGS
+= -fpack-struct
140 CPPFLAGS
+= -fshort-enums
141 CPPFLAGS
+= -fno-exceptions
144 #CPPFLAGS += -mshort-calls
145 #CPPFLAGS += -fno-unit-at-a-time
146 #CPPFLAGS += -Wstrict-prototypes
147 #CPPFLAGS += -Wunreachable-code
148 #CPPFLAGS += -Wsign-compare
149 CPPFLAGS
+= -Wa
,-adhlns
=$(@
:%.o
=%.lst
)
150 CPPFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
151 #CPPFLAGS += $(CSTANDARD)
152 CPPFLAGS
+= -include $(CONFIG_H
)
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
)
168 #---------------- Library Options ----------------
169 # Minimalistic printf version
170 PRINTF_LIB_MIN
= -Wl
,-u
,vfprintf
-lprintf_min
172 # Floating point printf version (requires MATH_LIB = -lm below)
173 PRINTF_LIB_FLOAT
= -Wl
,-u
,vfprintf
-lprintf_flt
175 # If this is left blank, then it will use the Standard printf version.
177 #PRINTF_LIB = $(PRINTF_LIB_MIN)
178 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
181 # Minimalistic scanf version
182 SCANF_LIB_MIN
= -Wl
,-u
,vfscanf
-lscanf_min
184 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
185 SCANF_LIB_FLOAT
= -Wl
,-u
,vfscanf
-lscanf_flt
187 # If this is left blank, then it will use the Standard scanf version.
189 #SCANF_LIB = $(SCANF_LIB_MIN)
190 #SCANF_LIB = $(SCANF_LIB_FLOAT)
196 # List any extra directories to look for libraries here.
197 # Each directory must be seperated by a space.
198 # Use forward slashes for directory separators.
199 # For a directory that has spaces, enclose it in quotes.
204 #---------------- External Memory Options ----------------
206 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
207 # used for variables (.data/.bss) and heap (malloc()).
208 #EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
210 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
211 # only used for heap (malloc()).
212 #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
218 #---------------- Linker Options ----------------
219 # -Wl,...: tell GCC to pass this to linker.
220 # -Map: create map file
221 # --cref: add cross reference to map file
223 # Comennt out "--relax" option to avoid a error such:
224 # (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
226 LDFLAGS
= -Wl
,-Map
=$(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
236 #---------------- Debugging Options ----------------
238 # For simulavr only - target MCU frequency.
239 DEBUG_MFREQ
= $(F_CPU
)
241 # Set the DEBUG_UI to either gdb or insight.
245 # Set the debugging back-end to either avarice, simulavr.
246 DEBUG_BACKEND
= avarice
247 #DEBUG_BACKEND = simulavr
250 GDBINIT_FILE
= __avr_gdbinit
252 # When using avarice settings for the JTAG
255 # Debugging port used to communicate between GDB / avarice / simulavr.
258 # Debugging host used to communicate between GDB / avarice / simulavr, normally
259 # just set to localhost unless doing some sort of crazy debugging when
260 # avarice is running on a different computer.
261 DEBUG_HOST
= localhost
265 #============================================================================
268 # Define programs and commands.
271 OBJCOPY
= avr-objcopy
272 OBJDUMP
= avr-objdump
284 MSG_ERRORS_NONE
= Errors
: none
285 MSG_BEGIN
= -------- begin
--------
286 MSG_END
= -------- end
--------
287 MSG_SIZE_BEFORE
= Size before
:
288 MSG_SIZE_AFTER
= Size after
:
289 MSG_COFF
= Converting to AVR COFF
:
290 MSG_EXTENDED_COFF
= Converting to AVR Extended COFF
:
291 MSG_FLASH
= Creating load file for Flash
:
292 MSG_EEPROM
= Creating load file for EEPROM
:
293 MSG_EXTENDED_LISTING
= Creating Extended Listing
:
294 MSG_SYMBOL_TABLE
= Creating Symbol Table
:
295 MSG_LINKING
= Linking
:
296 MSG_COMPILING
= Compiling C
:
297 MSG_COMPILING_CPP
= Compiling C
++:
298 MSG_ASSEMBLING
= Assembling
:
299 MSG_CLEANING
= Cleaning project
:
300 MSG_CREATING_LIBRARY
= Creating library
:
305 # Define all object files.
306 OBJ
= $(patsubst %.c
,$(OBJDIR
)/%.o
,$(patsubst %.
cpp,$(OBJDIR
)/%.o
,$(patsubst %.S
,$(OBJDIR
)/%.o
,$(SRC
))))
308 # Define all listing files.
309 LST
= $(patsubst %.c
,$(OBJDIR
)/%.lst
,$(patsubst %.
cpp,$(OBJDIR
)/%.lst
,$(patsubst %.S
,$(OBJDIR
)/%.lst
,$(SRC
))))
312 # Compiler flags to generate dependency files.
313 GENDEPFLAGS
= -MMD
-MP
-MF .dep
/$(@F
).d
316 # Combine all necessary flags and optional flags.
317 # Add target processor to flags.
318 ALL_CFLAGS
= -mmcu
=$(MCU
) -I.
$(CFLAGS
) $(GENDEPFLAGS
)
319 ALL_CPPFLAGS
= -mmcu
=$(MCU
) -I.
-x c
++ $(CPPFLAGS
) $(GENDEPFLAGS
)
320 ALL_ASFLAGS
= -mmcu
=$(MCU
) -I.
-x assembler-with-cpp
$(ASFLAGS
)
327 all: begin gccversion sizebefore build sizeafter end
329 # Change the build target to build a HEX file or a library.
330 build
: elf hex eep lss sym
339 LIBNAME
=lib
$(TARGET
).a
345 # AVR Studio 3.x does not check make's exit code but relies on
346 # the following magic strings to be generated by the compile job.
356 # Display size of file.
357 HEXSIZE
= $(SIZE
) --target
=$(FORMAT
) $(TARGET
).hex
358 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
359 ELFSIZE
= $(SIZE
) $(TARGET
).elf
362 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_BEFORE
); $(ELFSIZE
); \
363 2>/dev
/null
; echo
; fi
366 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_AFTER
); $(ELFSIZE
); \
367 2>/dev
/null
; echo
; fi
371 # Display compiler version information.
377 # Program the device.
378 program
: $(TARGET
).hex
$(TARGET
).eep
382 # Generate avr-gdb config/init file which does the following:
383 # define the reset signal, load the target file, connect to target, and set
384 # a breakpoint at main().
386 @
$(REMOVE
) $(GDBINIT_FILE
)
387 @echo
define reset
>> $(GDBINIT_FILE
)
388 @echo SIGNAL SIGHUP
>> $(GDBINIT_FILE
)
389 @echo end
>> $(GDBINIT_FILE
)
390 @echo file
$(TARGET
).elf
>> $(GDBINIT_FILE
)
391 @echo target remote
$(DEBUG_HOST
):$(DEBUG_PORT
) >> $(GDBINIT_FILE
)
392 ifeq ($(DEBUG_BACKEND
),simulavr
)
393 @echo load
>> $(GDBINIT_FILE
)
395 @echo break main
>> $(GDBINIT_FILE
)
397 debug
: gdb-config
$(TARGET
).elf
398 ifeq ($(DEBUG_BACKEND
), avarice
)
399 @echo Starting AVaRICE
- Press enter when
"waiting to connect" message displays.
400 @
$(WINSHELL
) /c start avarice
--jtag
$(JTAG_DEV
) --erase
--program
--file \
401 $(TARGET
).elf
$(DEBUG_HOST
):$(DEBUG_PORT
)
402 @
$(WINSHELL
) /c pause
405 @
$(WINSHELL
) /c start simulavr
--gdbserver
--device
$(MCU
) --clock-freq \
406 $(DEBUG_MFREQ
) --port
$(DEBUG_PORT
)
408 @
$(WINSHELL
) /c start avr-
$(DEBUG_UI
) --command
=$(GDBINIT_FILE
)
413 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
414 COFFCONVERT
= $(OBJCOPY
) --debugging
415 COFFCONVERT
+= --change-section-address .data-0x800000
416 COFFCONVERT
+= --change-section-address .bss-0x800000
417 COFFCONVERT
+= --change-section-address .noinit-0x800000
418 COFFCONVERT
+= --change-section-address .eeprom-0x810000
424 @echo
$(MSG_COFF
) $(TARGET
).cof
425 $(COFFCONVERT
) -O coff-avr
$< $(TARGET
).cof
428 extcoff
: $(TARGET
).elf
430 @echo
$(MSG_EXTENDED_COFF
) $(TARGET
).cof
431 $(COFFCONVERT
) -O coff-ext-avr
$< $(TARGET
).cof
435 # Create final output files (.hex, .eep) from ELF output file.
438 @echo
$(MSG_FLASH
) $@
439 $(OBJCOPY
) -O
$(FORMAT
) -R .eeprom
-R .fuse
-R .lock
-R .signature
$< $@
443 @echo
$(MSG_EEPROM
) $@
444 -$(OBJCOPY
) -j .eeprom
--set-section-flags
=.eeprom
="alloc,load" \
445 --change-section-lma .eeprom
=0 --no-change-warnings
-O
$(FORMAT
) $< $@ || exit
0
447 # Create extended listing file from ELF output file.
450 @echo
$(MSG_EXTENDED_LISTING
) $@
451 $(OBJDUMP
) -h
-S
-z
$< > $@
453 # Create a symbol table from ELF output file.
456 @echo
$(MSG_SYMBOL_TABLE
) $@
461 # Create library from object files.
462 .SECONDARY
: $(TARGET
).a
466 @echo
$(MSG_CREATING_LIBRARY
) $@
470 # Link: create ELF output file from object files.
471 .SECONDARY
: $(TARGET
).elf
475 @echo
$(MSG_LINKING
) $@
476 $(CC
) $(ALL_CFLAGS
) $^
--output
$@
$(LDFLAGS
)
479 # Compile: create object files from C source files.
482 @echo
$(MSG_COMPILING
) $<
483 $(CC
) -c
$(ALL_CFLAGS
) $< -o
$@
486 # Compile: create object files from C++ source files.
487 $(OBJDIR
)/%.o
: %.
cpp
489 @echo
$(MSG_COMPILING_CPP
) $<
490 $(CC
) -c
$(ALL_CPPFLAGS
) $< -o
$@
493 # Compile: create assembler files from C source files.
495 $(CC
) -S
$(ALL_CFLAGS
) $< -o
$@
498 # Compile: create assembler files from C++ source files.
500 $(CC
) -S
$(ALL_CPPFLAGS
) $< -o
$@
503 # Assemble: create object files from assembler source files.
506 @echo
$(MSG_ASSEMBLING
) $<
507 $(CC
) -c
$(ALL_ASFLAGS
) $< -o
$@
510 # Create preprocessed source for use in sending a bug report.
512 $(CC
) -E
-mmcu
=$(MCU
) -I.
$(CFLAGS
) $< -o
$@
515 # Target: clean project.
516 clean: begin clean_list end
520 $(REMOVE
) $(TARGET
).hex
521 $(REMOVE
) $(TARGET
).eep
522 $(REMOVE
) $(TARGET
).cof
523 $(REMOVE
) $(TARGET
).elf
524 $(REMOVE
) $(TARGET
).map
525 $(REMOVE
) $(TARGET
).sym
526 $(REMOVE
) $(TARGET
).lss
529 $(REMOVE
) $(OBJ
:.o
=.s
)
530 $(REMOVE
) $(OBJ
:.o
=.i
)
532 $(REMOVEDIR
) $(OBJDIR
)
535 # Create object files directory
536 $(shell mkdir
$(OBJDIR
) 2>/dev
/null
)
539 # Include the dependency files.
540 -include $(shell mkdir .dep
2>/dev
/null
) $(wildcard .dep
/*)
543 # Listing of phony targets.
544 .PHONY
: all begin finish end sizebefore sizeafter gccversion \
545 build elf hex eep lss sym coff extcoff \
546 clean clean_list program debug gdb-config