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
  12 # -----------------------------------------------------------------------------
  13 #               LUFA Compiler Buildsystem Makefile Module.
  14 # -----------------------------------------------------------------------------
  15 # DESCRIPTION:
  16 #   Provides a set of targets to build a C, C++ and/or Assembly application
  17 #   via the AVR-GCC compiler.
  18 # -----------------------------------------------------------------------------
  19 # TARGETS:
  20 #
  21 #    size                      - List application size
  22 #    checksource               - Check existance of listed input source files
  23 #    all                       - Build application and list size
  24 #    elf                       - Build application ELF debug object file
  25 #    hex                       - Build application HEX object files
  26 #    clean                     - Remove output files
  27 #
  28 # MANDATORY PARAMETERS:
  29 #
  30 #    TARGET                    - Application name
  31 #    ARCH                      - Device architecture name
  32 #    MCU                       - Microcontroller device model name
  33 #    SRC                       - List of input source files (.c, .cpp/.c++, .S)
  34 #    F_USB                     - Speed of the input clock of the USB controller
  35 #                                in Hz
  36 #    LUFA_PATH                 - Path to the LUFA library core
  37 #
  38 # OPTIONAL PARAMETERS:
  39 #
  40 #    BOARD                     - LUFA board hardware
  41 #    OPTIMIZATION              - Optimization level
  42 #    C_STANDARD                - C Language Standard to use
  43 #    CPP_STANDARD              - C++ Language Standard to use
  44 #    F_CPU                     - Speed of the CPU, in Hz
  45 #    CC_FLAGS                  - Flags to pass to the compiler
  46 #    LD_FLAGS                  - Flags to pass to the linker
  47 #
  48 # -----------------------------------------------------------------------------
  49
  50 # Output Messages
  51 MSG_BUILD_BEGIN = Begin compilation of project \"$(TARGET)\"...
  52 MSG_BUILD_END   = Finished building project \"$(TARGET)\"...
  53 MSG_COMPILE_CMD = '  [CC]      :'
  54 MSG_REMOVE_CMD  = '  [RM]      :'
  55 MSG_LINKER_CMD  = '  [LNK]     :'
  56 MSG_SIZE_CMD    = '  [SIZE]    :'
  57 MSG_OBJCPY_CMD  = '  [OBJCPY]  :'
  58 MSG_OBJDMP_CMD  = '  [OBJDMP]  :'
  59
  60 # Sanity check the user MCU, TARGET, ARCH, SRC, F_USB and LUFA_PATH makefile options
  61 ifeq ($(TARGET),)
  62    $(error Makefile TARGET value not set.)
  63 endif
  64 ifeq ($(ARCH),)
  65    $(error Makefile ARCH value not set.)
  66 endif
  67 ifeq ($(MCU),)
  68    $(error Makefile MCU value not set.)
  69 endif
  70 ifeq ($(SRC),)
  71    $(error Makefile SRC value not set.)
  72 endif
  73 ifeq ($(F_USB),)
  74    $(error Makefile F_USB value not set.)
  75 endif
  76 ifeq ($(LUFA_PATH),)
  77    $(error Makefile LUFA_PATH value not set.)
  78 endif
  79
  80 # Default values of user-supplied variables
  81 BOARD         ?= NONE
  82 OPTIMIZATION  ?= s
  83 F_CPU         ?=
  84 C_STANDARD    ?= c99
  85 CPP_STANDARD  ?= c++98
  86
  87 # Convert input source file list to differentiate them by type
  88 C_SOURCE   = $(filter %.c, $(SRC))
  89 CPP_SOURCE = $(filter %.cpp, $(SRC)) $(filter %.c++, $(SRC))
  90 ASM_SOURCE = $(filter %.S, $(SRC))
  91
  92 # Convert input source filenames into a list of required output object files
  93 OBJECT_FILES = $(C_SOURCE:%.c=%.o) $(CPP_SOURCE:%.c++=%.o) $(CPP_SOURCE:%.c++=%.o) $(ASM_SOURCE:%.S=%.o)
  94
  95 # Create a list of flags to pass to the compiler
  96 CC_FLAGS += -mmcu=$(MCU) -I. -I$(LUFA_PATH)/.. -gdwarf-2 -pipe
  97 CC_FLAGS += -Wall -Wstrict-prototypes
  98 CC_FLAGS += -fno-strict-aliasing -funsigned-char -funsigned-bitfields -ffunction-sections -fshort-enums -fno-inline-small-functions -fpack-struct -fshort-enums
  99 CC_FLAGS += -DARCH=ARCH_$(ARCH) -DBOARD=BOARD_$(BOARD) -DF_USB=$(F_USB)UL
 100 ifneq ($(F_CPU),)
 101    CC_FLAGS += -DF_CPU=$(F_CPU)UL
 102 endif
 103
 104 # Create a list of flags to pass to the linker
 105 LD_FLAGS += -Wl,-Map=$(TARGET).map,--cref -Wl,--relax -Wl,--gc-sections -lm
 106
 107 # Create a list of unknown source file types, if any are found throw an error
 108 UNKNOWN_SOURCE = $(filter-out $(C_SOURCE) $(CPP_SOURCE) $(ASM_SOURCE), $(SRC))
 109 ifneq ($(UNKNOWN_SOURCE),)
 110    $(error Unknown input source formats: $(UNKNOWN_SOURCE))
 111 endif
 112
 113 # Determine flags to pass to the size utility based on its reported features
 114 SIZE_MCU_FLAG    = $(shell avr-size --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
 115 SIZE_FORMAT_FLAG = $(shell avr-size --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
 116
 117
 118 begin:
 119         @echo ""
 120         @echo $(MSG_BUILD_BEGIN)
 121
 122 end:
 123         @echo $(MSG_BUILD_END)
 124         @echo ""
 125
 126 checksource:
 127         @for f in $(SRC) $(CPPSRC) $(ASRC); do \
 128                 if [ -f $$f ]; then \
 129                         echo "Found Source File: $$f" ; \
 130                 else \
 131                         echo "Source File Not Found: $$f" ; \
 132                 fi; \
 133          done
 134
 135 size:
 136         @echo $(MSG_SIZE_CMD) Determining size of \"$(TARGET).elf\"
 137         @if test -f $(TARGET).elf; then \
 138             avr-size $(SIZE_MCU_FLAG) $(SIZE_FORMAT_FLAG) $(TARGET).elf ; 2>/dev/null; \
 139          fi
 140
 141 .PHONY: begin hex lss end size
 142 all: begin hex end size
 143
 144 elf: $(TARGET).elf
 145 hex: $(TARGET).hex $(TARGET).eep
 146 lss: $(TARGET).lss
 147
 148 %.o: %.c
 149         @echo $(MSG_COMPILE_CMD) Compiling C file \"$^\"
 150         avr-gcc -c $(CC_FLAGS) -O$(OPTIMIZATION) --std=$(C_STANDARD) $< -o $@
 151
 152 %.o: %.cpp
 153 %.o: %.c++
 154         @echo $(MSG_COMPILE_CMD) Compiling C++ file \"$^\"
 155         avr-gcc -c $(CC_FLAGS) -O$(OPTIMIZATION) --std=$(CPP_STANDARD) -x c++ $< -o $@
 156
 157 %.o: %.S
 158         @echo $(MSG_COMPILE_CMD) Assembling \"$^\"
 159         avr-gcc -c $(CC_FLAGS) -x assembler-with-cpp $< -o $@
 160
 161 .PRECIOUS : $(OBJECT_FILES)
 162 %.elf: $(OBJECT_FILES)
 163         @echo $(MSG_LINKER_CMD) Linking object files into \"$@\"
 164         avr-gcc $^ $(CC_FLAGS) $(LD_FLAGS) -o $@
 165
 166 %.hex: %.elf
 167         @echo $(MSG_OBJCPY_CMD) Extracting HEX file data from \"$@\"
 168         avr-objcopy -O ihex -R .eeprom -R .fuse -R .lock -R .signature $< $@
 169
 170 %.eep: %.elf
 171         @echo $(MSG_OBJCPY_CMD) Extracting EEP file data from \"$@\"
 172         avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings -O ihex $< $@ || exit 0
 173
 174 %.lss: %.elf
 175         @echo $(MSG_OBJDMP_CMD) Extracting LSS file data from \"$@\"
 176         avr-objdump -h -S -z $< > $@
 177
 178 clean:
 179         @echo $(MSG_REMOVE_CMD) Removing object files \"$(OBJECT_FILES)\"
 180         rm -f $(OBJECT_FILES)
 181         @echo $(MSG_REMOVE_CMD) Removing output files \"$(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss\"
 182         rm -f $(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss