LUFA/Build/lufa.build.in

   1 #
   2 #             LUFA Library
   3 #     Copyright (C) Dean Camera, 2012.
   4 #
   5 #  dean [at] fourwalledcubicle [dot] com
   6 #           www.lufa-lib.org
   7 #
   8
   9 LUFA_BUILD_MODULES        += BUILD
  10 LUFA_BUILD_TARGETS        += size checksource all elf hex clean
  11 LUFA_BUILD_MANDATORY_VARS += TARGET ARCH MCU SRC F_USB LUFA_PATH
  12 LUFA_BUILD_OPTIONAL_VARS  += BOARD OPTIMIZATION C_STANDARD CPP_STANDARD F_CPU C_FLAGS CPP_FLAGS ASM_FLAGS CC_FLAGS LD_FLAGS
  13
  14 # -----------------------------------------------------------------------------
  15 #               LUFA Compiler Buildsystem Makefile Module.
  16 # -----------------------------------------------------------------------------
  17 # DESCRIPTION:
  18 #   Provides a set of targets to build a C, C++ and/or Assembly application
  19 #   via the AVR-GCC compiler.
  20 # -----------------------------------------------------------------------------
  21 # TARGETS:
  22 #
  23 #    size                      - List application size
  24 #    checksource               - Check existance of listed input source files
  25 #    all                       - Build application and list size
  26 #    elf                       - Build application ELF debug object file
  27 #    hex                       - Build application HEX object files
  28 #    clean                     - Remove output files
  29 #
  30 # MANDATORY PARAMETERS:
  31 #
  32 #    TARGET                    - Application name
  33 #    ARCH                      - Device architecture name
  34 #    MCU                       - Microcontroller device model name
  35 #    SRC                       - List of input source files (.c, .cpp/.c++, .S)
  36 #    F_USB                     - Speed of the input clock of the USB controller
  37 #                                in Hz
  38 #    LUFA_PATH                 - Path to the LUFA library core
  39 #
  40 # OPTIONAL PARAMETERS:
  41 #
  42 #    BOARD                     - LUFA board hardware
  43 #    OPTIMIZATION              - Optimization level
  44 #    C_STANDARD                - C Language Standard to use
  45 #    CPP_STANDARD              - C++ Language Standard to use
  46 #    F_CPU                     - Speed of the CPU, in Hz
  47 #    C_FLAGS                   - Flags to pass to the C compiler only
  48 #    CPP_FLAGS                 - Flags to pass to the C++ compiler only
  49 #    ASM_FLAGS                 - Flags to pass to the assembler only
  50 #    CC_FLAGS                  - Common flags to pass to the C/C++ compiler and
  51 #                                assembler
  52 #    LD_FLAGS                  - Flags to pass to the linker
  53 #
  54 # -----------------------------------------------------------------------------
  55
  56 # Output Messages
  57 MSG_BUILD_BEGIN = Begin compilation of project \"$(TARGET)\"...
  58 MSG_BUILD_END   = Finished building project \"$(TARGET)\"...
  59 MSG_COMPILE_CMD = '  [CC]      :'
  60 MSG_REMOVE_CMD  = '  [RM]      :'
  61 MSG_LINKER_CMD  = '  [LNK]     :'
  62 MSG_SIZE_CMD    = '  [SIZE]    :'
  63 MSG_OBJCPY_CMD  = '  [OBJCPY]  :'
  64 MSG_OBJDMP_CMD  = '  [OBJDMP]  :'
  65
  66 # Sanity check the user MCU, TARGET, ARCH, SRC, F_USB and LUFA_PATH makefile options
  67 ifeq ($(TARGET),)
  68    $(error Makefile TARGET value not set.)
  69 endif
  70 ifeq ($(ARCH),)
  71    $(error Makefile ARCH value not set.)
  72 endif
  73 ifeq ($(MCU),)
  74    $(error Makefile MCU value not set.)
  75 endif
  76 ifeq ($(SRC),)
  77    $(error Makefile SRC value not set.)
  78 endif
  79 ifeq ($(F_USB),)
  80    $(error Makefile F_USB value not set.)
  81 endif
  82 ifeq ($(LUFA_PATH),)
  83    $(error Makefile LUFA_PATH value not set.)
  84 endif
  85
  86 # Default values of user-supplied variables
  87 BOARD         ?= NONE
  88 OPTIMIZATION  ?= s
  89 F_CPU         ?=
  90 C_STANDARD    ?= gnu99
  91 CPP_STANDARD  ?= gnu++98
  92 C_FLAGS       ?=
  93 CPP_FLAGS     ?=
  94 ASM_FLAGS     ?=
  95 CC_FLAGS      ?=
  96
  97 # Convert input source file list to differentiate them by type
  98 C_SOURCE   = $(filter %.c, $(SRC))
  99 CPP_SOURCE = $(filter %.cpp, $(SRC))
 100 ASM_SOURCE = $(filter %.S, $(SRC))
 101
 102 # Convert input source filenames into a list of required output object files
 103 OBJECT_FILES = $(filter %.o, $(C_SOURCE:%.c=%.o) $(CPP_SOURCE:%.cpp=%.o) $(ASM_SOURCE:%.S=%.o))
 104
 105 # Create a list of flags to pass to the compiler
 106 ifeq ($(ARCH), AVR8)
 107  CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct
 108  CROSS     = avr-
 109 else ifeq ($(ARCH), XMEGA)
 110  CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct
 111  CROSS     = avr-
 112 else ifeq ($(ARCH), UC3)
 113  CC_FLAGS += -mpart=$(MCU) -g3 -masm-addr-pseudos
 114  CROSS     = avr32-
 115 else
 116   $(error Unsupported architecture.)
 117 endif
 118 CC_FLAGS += -Wall -fno-strict-aliasing -funsigned-char -funsigned-bitfields -ffunction-sections
 119 CC_FLAGS += -I. -I$(LUFA_PATH)/..
 120 CC_FLAGS += -DARCH=ARCH_$(ARCH) -DBOARD=BOARD_$(BOARD) -DF_USB=$(F_USB)UL
 121 ifneq ($(F_CPU),)
 122    CC_FLAGS += -DF_CPU=$(F_CPU)UL
 123 endif
 124
 125 # Additional language specific compiler flags
 126 C_FLAGS   += -Wstrict-prototypes
 127
 128 # Create a list of flags to pass to the linker
 129 LD_FLAGS += -Wl,-Map=$(TARGET).map,--cref -Wl,--gc-sections -lm
 130 ifneq ($(F_CPU), UC3)
 131    LD_FLAGS += -Wl,--relax
 132 endif
 133
 134 # Create a list of unknown source file types, if any are found throw an error
 135 UNKNOWN_SOURCE = $(filter-out $(C_SOURCE) $(CPP_SOURCE) $(ASM_SOURCE), $(SRC))
 136 ifneq ($(UNKNOWN_SOURCE),)
 137    $(error Unknown input source formats: $(UNKNOWN_SOURCE))
 138 endif
 139
 140 # Determine flags to pass to the size utility based on its reported features
 141 SIZE_MCU_FLAG    = $(shell avr-size --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
 142 SIZE_FORMAT_FLAG = $(shell avr-size --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
 143
 144
 145 begin:
 146         @echo ""
 147         @echo $(MSG_BUILD_BEGIN)
 148
 149 end:
 150         @echo $(MSG_BUILD_END)
 151         @echo ""
 152
 153 checksource:
 154         @for f in $(SRC) $(CPPSRC) $(ASRC); do \
 155                 if [ -f $$f ]; then \
 156                         echo "Found Source File: $$f" ; \
 157                 else \
 158                         echo "Source File Not Found: $$f" ; \
 159                 fi; \
 160          done
 161
 162 size:
 163         @echo $(MSG_SIZE_CMD) Determining size of \"$(TARGET).elf\"
 164         @if test -f $(TARGET).elf; then \
 165             avr-size $(SIZE_MCU_FLAG) $(SIZE_FORMAT_FLAG) $(TARGET).elf ; 2>/dev/null; \
 166          fi
 167
 168 .PHONY: begin hex lss end size
 169 all: begin hex end size
 170
 171 elf: $(TARGET).elf
 172 hex: $(TARGET).hex $(TARGET).eep
 173 lss: $(TARGET).lss
 174
 175 %.o: %.c
 176         @echo $(MSG_COMPILE_CMD) Compiling C file \"$^\"
 177         $(CROSS)gcc -c $(CC_FLAGS) $(C_FLAGS) -O$(OPTIMIZATION) -std=$(C_STANDARD) $< -o $@
 178
 179 %.o: %.cpp
 180         @echo $(MSG_COMPILE_CMD) Compiling C++ file \"$^\"
 181         $(CROSS)gcc -c $(CC_FLAGS) $(CPP_FLAGS) -O$(OPTIMIZATION) -std=$(CPP_STANDARD) -x c++ $< -o $@
 182
 183 %.o: %.S
 184         @echo $(MSG_COMPILE_CMD) Assembling \"$^\"
 185         $(CROSS)gcc -c $(CC_FLAGS) $(ASM_FLAGS) -x assembler-with-cpp $< -o $@
 186
 187 .PRECIOUS : $(OBJECT_FILES)
 188 %.elf: $(OBJECT_FILES)
 189         @echo $(MSG_LINKER_CMD) Linking object files into \"$@\"
 190         $(CROSS)gcc $^ $(CC_FLAGS) $(LD_FLAGS) -o $@
 191
 192 %.hex: %.elf
 193         @echo $(MSG_OBJCPY_CMD) Extracting HEX file data from \"$@\"
 194         $(CROSS)objcopy -O ihex -R .eeprom -R .fuse -R .lock -R .signature $< $@
 195
 196 %.eep: %.elf
 197         @echo $(MSG_OBJCPY_CMD) Extracting EEP file data from \"$@\"
 198         $(CROSS)objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings -O ihex $< $@ || exit 0
 199
 200 %.lss: %.elf
 201         @echo $(MSG_OBJDMP_CMD) Extracting LSS file data from \"$@\"
 202         $(CROSS)objdump -h -S -z $< > $@
 203
 204 clean:
 205         @echo $(MSG_REMOVE_CMD) Removing object files \"$(notdir $(OBJECT_FILES))\"
 206         rm -f $(OBJECT_FILES)
 207         @echo $(MSG_REMOVE_CMD) Removing output files \"$(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss\"
 208         rm -f $(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss