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 check-source symbol-sizes all lib elf hex lss 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 OBJDIR
  13 LUFA_BUILD_PROVIDED_VARS   +=
  14 LUFA_BUILD_PROVIDED_MACROS +=
  15
  16 # -----------------------------------------------------------------------------
  17 #               LUFA GCC Compiler Buildsystem Makefile Module.
  18 # -----------------------------------------------------------------------------
  19 # DESCRIPTION:
  20 #   Provides a set of targets to build a C, C++ and/or Assembly application
  21 #   via the AVR-GCC compiler.
  22 # -----------------------------------------------------------------------------
  23 # TARGETS:
  24 #
  25 #    size                      - List built application size
  26 #    symbol-sizes              - Print application symbols from the binary ELF
  27 #                                file as a list sorted by size in bytes
  28 #    check-source              - Print a list of SRC source files that cannot
  29 #                                be found
  30 #    all                       - Build application and list size
  31 #    lib                       - Build and archive source files into a library
  32 #    elf                       - Build application ELF debug object file
  33 #    hex                       - Build application HEX object files
  34 #    lss                       - Build application LSS assembly listing file
  35 #    clean                     - Remove output files
  36 #
  37 # MANDATORY PARAMETERS:
  38 #
  39 #    TARGET                    - Application name
  40 #    ARCH                      - Device architecture name
  41 #    MCU                       - Microcontroller device model name
  42 #    SRC                       - List of input source files (*.c, *.cpp, *.S)
  43 #    F_USB                     - Speed of the input clock of the USB controller
  44 #                                in Hz
  45 #    LUFA_PATH                 - Path to the LUFA library core
  46 #
  47 # OPTIONAL PARAMETERS:
  48 #
  49 #    BOARD                     - LUFA board hardware
  50 #    OPTIMIZATION              - Optimization level
  51 #    C_STANDARD                - C Language Standard to use
  52 #    CPP_STANDARD              - C++ Language Standard to use
  53 #    F_CPU                     - Speed of the CPU, in Hz
  54 #    C_FLAGS                   - Flags to pass to the C compiler only
  55 #    CPP_FLAGS                 - Flags to pass to the C++ compiler only
  56 #    ASM_FLAGS                 - Flags to pass to the assembler only
  57 #    CC_FLAGS                  - Common flags to pass to the C/C++ compiler and
  58 #                                assembler
  59 #    LD_FLAGS                  - Flags to pass to the linker
  60 #    OBJDIR                    - Directory for the output object and dependency
  61 #                                files; if equal to ".", the output files will
  62 #                                be generated in the same folder as the sources
  63 #
  64 # PROVIDED VARIABLES:
  65 #
  66 #    (None)
  67 #
  68 # PROVIDED MACROS:
  69 #
  70 #    (None)
  71 #
  72 # -----------------------------------------------------------------------------
  73
  74 SHELL = /bin/sh
  75
  76 ERROR_IF_UNSET   ?= $(if $(filter undefined, $(origin $(strip $(1)))), $(error Makefile $(strip $(1)) value not set))
  77 ERROR_IF_EMPTY   ?= $(if $(strip $($(strip $(1)))), , $(error Makefile $(strip $(1)) option cannot be blank))
  78 ERROR_IF_NONBOOL ?= $(if $(filter Y N, $($(strip $(1)))), , $(error Makefile $(strip $(1)) option must be Y or N))
  79
  80 # Default values of optionally user-supplied variables
  81 BOARD           ?= NONE
  82 OPTIMIZATION    ?= s
  83 F_CPU           ?=
  84 C_STANDARD      ?= gnu99
  85 CPP_STANDARD    ?= gnu++98
  86 C_FLAGS         ?=
  87 CPP_FLAGS       ?=
  88 ASM_FLAGS       ?=
  89 CC_FLAGS        ?=
  90 OBJDIR          ?= .
  91
  92 # Sanity check user supplied values
  93 $(foreach MANDATORY_VAR, $(LUFA_BUILD_MANDATORY_VARS), $(call ERROR_IF_UNSET, $(MANDATORY_VAR)))
  94 $(call ERROR_IF_EMPTY, MCU)
  95 $(call ERROR_IF_EMPTY, TARGET)
  96 $(call ERROR_IF_EMPTY, ARCH)
  97 $(call ERROR_IF_EMPTY, F_USB)
  98 $(call ERROR_IF_EMPTY, LUFA_PATH)
  99 $(call ERROR_IF_EMPTY, BOARD)
 100 $(call ERROR_IF_EMPTY, OPTIMIZATION)
 101 $(call ERROR_IF_EMPTY, C_STANDARD)
 102 $(call ERROR_IF_EMPTY, CPP_STANDARD)
 103 $(call ERROR_IF_EMPTY, OBJDIR)
 104
 105 # Determine the utility prefix to use for the selected architecture
 106 ifeq ($(ARCH), AVR8)
 107    CROSS        := avr
 108 else ifeq ($(ARCH), XMEGA)
 109    CROSS        := avr
 110    $(warning The XMEGA device support is currently EXPERIMENTAL (incomplete and/or non-functional), and is included for preview purposes only.)
 111 else ifeq ($(ARCH), UC3)
 112    CROSS        := avr32
 113    $(warning The UC3 device support is currently EXPERIMENTAL (incomplete and/or non-functional), and is included for preview purposes only.)
 114 else
 115    $(error Unsupported architecture "$(ARCH)")
 116 endif
 117
 118 # Output Messages
 119 MSG_COMPILE_CMD  := ' [GCC]     :'
 120 MSG_ASSEMBLE_CMD := ' [GAS]     :'
 121 MSG_NM_CMD       := ' [NM]      :'
 122 MSG_REMOVE_CMD   := ' [RM]      :'
 123 MSG_LINK_CMD     := ' [LNK]     :'
 124 MSG_ARCHIVE_CMD  := ' [AR]      :'
 125 MSG_SIZE_CMD     := ' [SIZE]    :'
 126 MSG_OBJCPY_CMD   := ' [OBJCPY]  :'
 127 MSG_OBJDMP_CMD   := ' [OBJDMP]  :'
 128
 129 # Convert input source file list to differentiate them by type
 130 C_SOURCE   := $(filter %.c, $(SRC))
 131 CPP_SOURCE := $(filter %.cpp, $(SRC))
 132 ASM_SOURCE := $(filter %.S, $(SRC))
 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 file formats: $(UNKNOWN_SOURCE))
 138 endif
 139
 140 # Convert input source filenames into a list of required output object files
 141 OBJECT_FILES := $(addsuffix .o, $(basename $(SRC)))
 142 ifneq ($(OBJDIR),.)
 143    $(shell mkdir $(OBJDIR) 2>&1 | /dev/null)
 144    VPATH           += $(dir $(SRC))
 145
 146    OBJECT_FILES    := $(addprefix $(patsubst %/,%,$(OBJDIR))/, $(notdir $(OBJECT_FILES)))
 147 endif
 148
 149 DEPENDENCY_FILES := $(OBJECT_FILES:%.o=%.d)
 150
 151 # Create a list of common flags to pass to the compiler/linker/assembler
 152 BASE_CC_FLAGS    := -pipe
 153 ifeq ($(ARCH), AVR8)
 154    BASE_CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct
 155 else ifeq ($(ARCH), XMEGA)
 156    BASE_CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct
 157 else ifeq ($(ARCH), UC3)
 158    BASE_CC_FLAGS += -mpart=$(MCU:at32%=%) -g3 -masm-addr-pseudos
 159 endif
 160 BASE_CC_FLAGS += -Wall -fno-strict-aliasing -funsigned-char -funsigned-bitfields -ffunction-sections
 161 BASE_CC_FLAGS += -I. -I$(patsubst %/,%,$(LUFA_PATH))/..
 162 BASE_CC_FLAGS += -DARCH=ARCH_$(ARCH) -DBOARD=BOARD_$(BOARD) -DF_USB=$(F_USB)UL
 163 ifneq ($(F_CPU),)
 164    BASE_CC_FLAGS += -DF_CPU=$(F_CPU)UL
 165 endif
 166
 167 # Additional language specific compiler flags
 168 BASE_C_FLAGS   := -x c -O$(OPTIMIZATION) -std=$(C_STANDARD) -Wstrict-prototypes
 169 BASE_CPP_FLAGS := -x c++ -O$(OPTIMIZATION) -std=$(CPP_STANDARD)
 170 BASE_ASM_FLAGS := -x assembler-with-cpp
 171
 172 # Create a list of flags to pass to the linker
 173 BASE_LD_FLAGS := -lm -Wl,-Map=$(TARGET).map,--cref -Wl,--gc-sections
 174 ifeq ($(ARCH), UC3)
 175    BASE_LD_FLAGS += --rodata-writable --direct-data
 176 else
 177    BASE_LD_FLAGS += -Wl,--relax
 178 endif
 179
 180 # Determine flags to pass to the size utility based on its reported features
 181 SIZE_MCU_FLAG    := $(shell $(CROSS)-size --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
 182 SIZE_FORMAT_FLAG := $(shell $(CROSS)-size --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
 183
 184
 185 build_begin:
 186         @echo ""
 187         @echo Begin compilation of project \"$(TARGET)\"...
 188         @echo ""
 189
 190 build_end:
 191         @echo Finished building project \"$(TARGET)\".
 192         @echo ""
 193
 194 gcc-version:
 195         @$(CROSS)-gcc --version
 196
 197 check-source:
 198         @for f in $(SRC); do \
 199                 if [ ! -f $$f ]; then \
 200                         echo "Error: Source file not found: $$f"; \
 201                         exit 1; \
 202                 fi; \
 203          done
 204
 205 size: $(TARGET).elf
 206         @echo $(MSG_SIZE_CMD) Determining size of \"$<\"
 207         @echo ""
 208         $(CROSS)-size $(SIZE_MCU_FLAG) $(SIZE_FORMAT_FLAG) $< ; 2>/dev/null;
 209
 210 symbol-sizes: $(TARGET).elf
 211         @echo $(MSG_NM_CMD) Extracting \"$<\" symbols with decimal byte sizes
 212         avr-nm --size-sort --demangle --radix=d $<
 213
 214 clean:
 215         @echo $(MSG_REMOVE_CMD) Removing object files of \"$(TARGET)\"
 216         rm -f $(OBJECT_FILES)
 217         @echo $(MSG_REMOVE_CMD) Removing dependency files of \"$(TARGET)\"
 218         rm -f $(DEPENDENCY_FILES)
 219         @echo $(MSG_REMOVE_CMD) Removing output files of \"$(TARGET)\"
 220         rm -f $(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss $(TARGET).sym $(TARGET).a
 221
 222 all: build_begin check-source gcc-version elf hex lss sym size build_end
 223
 224 lib: $(TARGET).a
 225 elf: $(TARGET).elf
 226 hex: $(TARGET).hex $(TARGET).eep
 227 lss: $(TARGET).lss
 228 sym: $(TARGET).sym
 229
 230 $(OBJDIR)/%.o: %.c $(MAKEFILE_LIST)
 231         @echo $(MSG_COMPILE_CMD) Compiling C file \"$(notdir $<)\"
 232         $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_C_FLAGS) $(CC_FLAGS) $(C_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@
 233
 234 $(OBJDIR)/%.o: %.cpp $(MAKEFILE_LIST)
 235         @echo $(MSG_COMPILE_CMD) Compiling C++ file \"$(notdir $<)\"
 236         $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_CPP_FLAGS) $(CC_FLAGS) $(CPP_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@
 237
 238 $(OBJDIR)/%.o: %.S $(MAKEFILE_LIST)
 239         @echo $(MSG_ASSEMBLE_CMD) Assembling \"$(notdir $<)\"
 240         $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_ASM_FLAGS) $(CC_FLAGS) $(ASM_FLAGS) $< -o $@
 241
 242 .PRECIOUS  : $(OBJECT_FILES)
 243 .SECONDARY : %.a
 244 %.a: $(OBJECT_FILES)
 245         @echo $(MSG_ARCHIVE_CMD) Archiving object files into \"$@\"
 246         $(CROSS)-ar rcs $@ $(OBJECT_FILES)
 247
 248 .PRECIOUS  : $(OBJECT_FILES)
 249 .SECONDARY : %.elf
 250 %.elf: $(OBJECT_FILES)
 251         @echo $(MSG_LINK_CMD) Linking object files into \"$@\"
 252         $(CROSS)-gcc $(BASE_CC_FLAGS) $(BASE_LD_FLAGS) $(CC_FLAGS) $(LD_FLAGS) $^ -o $@
 253
 254 %.hex: %.elf
 255         @echo $(MSG_OBJCPY_CMD) Extracting HEX file data from \"$<\"
 256         $(CROSS)-objcopy -O ihex -R .eeprom -R .fuse -R .lock -R .signature $< $@
 257
 258 %.eep: %.elf
 259         @echo $(MSG_OBJCPY_CMD) Extracting EEP file data from \"$<\"
 260         $(CROSS)-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings -O ihex $< $@ || exit 0
 261
 262 %.lss: %.elf
 263         @echo $(MSG_OBJDMP_CMD) Extracting LSS file data from \"$<\"
 264         $(CROSS)-objdump -h -S -z $< > $@
 265
 266 %.sym: %.elf
 267         @echo $(MSG_NM_CMD) Extracting SYM file data from \"$<\"
 268         $(CROSS)-nm -n $< > $@
 269
 270 # Include build dependency files
 271 -include $(DEPENDENCY_FILES)
 272
 273 # Phony build targets for this module
 274 .PHONY: build_begin build_end gcc-version check-source size symbol-sizes lib elf hex lss clean