diff options
Diffstat (limited to 'LUFA/Build/lufa_build.mk')
-rw-r--r-- | LUFA/Build/lufa_build.mk | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/LUFA/Build/lufa_build.mk b/LUFA/Build/lufa_build.mk new file mode 100644 index 000000000..a78d0f9ba --- /dev/null +++ b/LUFA/Build/lufa_build.mk @@ -0,0 +1,286 @@ +# +# LUFA Library +# Copyright (C) Dean Camera, 2012. +# +# dean [at] fourwalledcubicle [dot] com +# www.lufa-lib.org +# + +LUFA_BUILD_MODULES += BUILD +LUFA_BUILD_TARGETS += size check-source symbol-sizes all lib elf hex lss clean mostlyclean +LUFA_BUILD_MANDATORY_VARS += TARGET ARCH MCU SRC F_USB LUFA_PATH +LUFA_BUILD_OPTIONAL_VARS += BOARD OPTIMIZATION C_STANDARD CPP_STANDARD F_CPU C_FLAGS CPP_FLAGS ASM_FLAGS CC_FLAGS LD_FLAGS OBJDIR OBJECT_FILES +LUFA_BUILD_PROVIDED_VARS += +LUFA_BUILD_PROVIDED_MACROS += + +# ----------------------------------------------------------------------------- +# LUFA GCC Compiler Buildsystem Makefile Module. +# ----------------------------------------------------------------------------- +# DESCRIPTION: +# Provides a set of targets to build a C, C++ and/or Assembly application +# via the AVR-GCC compiler. +# ----------------------------------------------------------------------------- +# TARGETS: +# +# size - List built application size +# symbol-sizes - Print application symbols from the binary ELF +# file as a list sorted by size in bytes +# check-source - Print a list of SRC source files that cannot +# be found +# all - Build application and list size +# lib - Build and archive source files into a library +# elf - Build application ELF debug object file +# hex - Build application HEX object files +# lss - Build application LSS assembly listing file +# clean - Remove all project intermediatary and binary +# output files +# mostlyclean - Remove intermediatary output files, but +# preserve binaries +# +# MANDATORY PARAMETERS: +# +# TARGET - Application name +# ARCH - Device architecture name +# MCU - Microcontroller device model name +# SRC - List of input source files (*.c, *.cpp, *.S) +# F_USB - Speed of the input clock of the USB controller +# in Hz +# LUFA_PATH - Path to the LUFA library core +# +# OPTIONAL PARAMETERS: +# +# BOARD - LUFA board hardware +# OPTIMIZATION - Optimization level +# C_STANDARD - C Language Standard to use +# CPP_STANDARD - C++ Language Standard to use +# F_CPU - Speed of the CPU, in Hz +# C_FLAGS - Flags to pass to the C compiler only +# CPP_FLAGS - Flags to pass to the C++ compiler only +# ASM_FLAGS - Flags to pass to the assembler only +# CC_FLAGS - Common flags to pass to the C/C++ compiler and +# assembler +# LD_FLAGS - Flags to pass to the linker +# OBJDIR - Directory for the output object and dependency +# files; if equal to ".", the output files will +# be generated in the same folder as the sources +# OBJECT_FILES - Extra object files to link in to the binaries +# +# PROVIDED VARIABLES: +# +# (None) +# +# PROVIDED MACROS: +# +# (None) +# +# ----------------------------------------------------------------------------- + +SHELL = /bin/sh + +ERROR_IF_UNSET ?= $(if $(filter undefined, $(origin $(strip $(1)))), $(error Makefile $(strip $(1)) value not set)) +ERROR_IF_EMPTY ?= $(if $(strip $($(strip $(1)))), , $(error Makefile $(strip $(1)) option cannot be blank)) +ERROR_IF_NONBOOL ?= $(if $(filter Y N, $($(strip $(1)))), , $(error Makefile $(strip $(1)) option must be Y or N)) + +# Default values of optionally user-supplied variables +BOARD ?= NONE +OPTIMIZATION ?= s +F_CPU ?= +C_STANDARD ?= gnu99 +CPP_STANDARD ?= gnu++98 +C_FLAGS ?= +CPP_FLAGS ?= +ASM_FLAGS ?= +CC_FLAGS ?= +OBJDIR ?= . +OBJECT_FILES ?= + +# Sanity check user supplied values +$(foreach MANDATORY_VAR, $(LUFA_BUILD_MANDATORY_VARS), $(call ERROR_IF_UNSET, $(MANDATORY_VAR))) +$(call ERROR_IF_EMPTY, MCU) +$(call ERROR_IF_EMPTY, TARGET) +$(call ERROR_IF_EMPTY, ARCH) +$(call ERROR_IF_EMPTY, F_USB) +$(call ERROR_IF_EMPTY, LUFA_PATH) +$(call ERROR_IF_EMPTY, BOARD) +$(call ERROR_IF_EMPTY, OPTIMIZATION) +$(call ERROR_IF_EMPTY, C_STANDARD) +$(call ERROR_IF_EMPTY, CPP_STANDARD) +$(call ERROR_IF_EMPTY, OBJDIR) + +# Determine the utility prefix to use for the selected architecture +ifeq ($(ARCH), AVR8) + CROSS := avr +else ifeq ($(ARCH), XMEGA) + CROSS := avr + $(warning The XMEGA device support is currently EXPERIMENTAL (incomplete and/or non-functional), and is included for preview purposes only.) +else ifeq ($(ARCH), UC3) + CROSS := avr32 + $(warning The UC3 device support is currently EXPERIMENTAL (incomplete and/or non-functional), and is included for preview purposes only.) +else + $(error Unsupported architecture "$(ARCH)") +endif + +# Output Messages +MSG_COMPILE_CMD := ' [GCC] :' +MSG_ASSEMBLE_CMD := ' [GAS] :' +MSG_NM_CMD := ' [NM] :' +MSG_REMOVE_CMD := ' [RM] :' +MSG_LINK_CMD := ' [LNK] :' +MSG_ARCHIVE_CMD := ' [AR] :' +MSG_SIZE_CMD := ' [SIZE] :' +MSG_OBJCPY_CMD := ' [OBJCPY] :' +MSG_OBJDMP_CMD := ' [OBJDMP] :' + +# Convert input source file list to differentiate them by type +C_SOURCE := $(filter %.c, $(SRC)) +CPP_SOURCE := $(filter %.cpp, $(SRC)) +ASM_SOURCE := $(filter %.S, $(SRC)) + +# Create a list of unknown source file types, if any are found throw an error +UNKNOWN_SOURCE := $(filter-out $(C_SOURCE) $(CPP_SOURCE) $(ASM_SOURCE), $(SRC)) +ifneq ($(UNKNOWN_SOURCE),) + $(error Unknown input source file formats: $(UNKNOWN_SOURCE)) +endif + +# Convert input source filenames into a list of required output object files +OBJECT_FILES += $(addsuffix .o, $(basename $(SRC))) +ifneq ($(OBJDIR),.) + $(shell mkdir $(OBJDIR) 2> /dev/null) + VPATH += $(dir $(SRC)) + OBJECT_FILES := $(addprefix $(patsubst %/,%,$(OBJDIR))/, $(notdir $(OBJECT_FILES))) + + # Check if any object file (without path) appears more than once in the object file list + ifneq ($(words $(sort $(OBJECT_FILES))), $(words $(OBJECT_FILES))) + $(error Cannot build with OBJDIR parameter set - one or more object file name is not unique) + endif +endif + +# Create a list of dependency files from the list of object files +DEPENDENCY_FILES := $(OBJECT_FILES:%.o=%.d) + +# Create a list of common flags to pass to the compiler/linker/assembler +BASE_CC_FLAGS := -pipe +ifeq ($(ARCH), AVR8) + BASE_CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct +else ifeq ($(ARCH), XMEGA) + BASE_CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct +else ifeq ($(ARCH), UC3) + BASE_CC_FLAGS += -mpart=$(MCU:at32%=%) -g3 -masm-addr-pseudos +endif +BASE_CC_FLAGS += -Wall -fno-strict-aliasing -funsigned-char -funsigned-bitfields -ffunction-sections +BASE_CC_FLAGS += -I. -I$(patsubst %/,%,$(LUFA_PATH))/.. +BASE_CC_FLAGS += -DARCH=ARCH_$(ARCH) -DBOARD=BOARD_$(BOARD) -DF_USB=$(F_USB)UL +ifneq ($(F_CPU),) + BASE_CC_FLAGS += -DF_CPU=$(F_CPU)UL +endif + +# Additional language specific compiler flags +BASE_C_FLAGS := -x c -O$(OPTIMIZATION) -std=$(C_STANDARD) -Wstrict-prototypes +BASE_CPP_FLAGS := -x c++ -O$(OPTIMIZATION) -std=$(CPP_STANDARD) +BASE_ASM_FLAGS := -x assembler-with-cpp + +# Create a list of flags to pass to the linker +BASE_LD_FLAGS := -lm -Wl,-Map=$(TARGET).map,--cref -Wl,--gc-sections +ifeq ($(ARCH), UC3) + BASE_LD_FLAGS += --rodata-writable --direct-data +else + BASE_LD_FLAGS += -Wl,--relax +endif + +# Determine flags to pass to the size utility based on its reported features (only invoke if size target required) +size: SIZE_MCU_FLAG := $(shell $(CROSS)-size --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) ) +size: SIZE_FORMAT_FLAG := $(shell $(CROSS)-size --help | grep -- --format=.*avr > /dev/null && echo --format=avr ) + + +build_begin: + @echo "" + @echo Begin compilation of project \"$(TARGET)\"... + @echo "" + +build_end: + @echo Finished building project \"$(TARGET)\". + @echo "" + +gcc-version: + @$(CROSS)-gcc --version + +check-source: + @for f in $(SRC); do \ + if [ ! -f $$f ]; then \ + echo "Error: Source file not found: $$f"; \ + exit 1; \ + fi; \ + done + +size: $(TARGET).elf + @echo $(MSG_SIZE_CMD) Determining size of \"$<\" + @echo "" + $(CROSS)-size $(SIZE_MCU_FLAG) $(SIZE_FORMAT_FLAG) $< ; 2>/dev/null; + +symbol-sizes: $(TARGET).elf + @echo $(MSG_NM_CMD) Extracting \"$<\" symbols with decimal byte sizes + $(CROSS)-nm --size-sort --demangle --radix=d $< + +mostlyclean: + @echo $(MSG_REMOVE_CMD) Removing object files of \"$(TARGET)\" + rm -f $(OBJECT_FILES) + @echo $(MSG_REMOVE_CMD) Removing dependency files of \"$(TARGET)\" + rm -f $(DEPENDENCY_FILES) + +clean: mostlyclean + @echo $(MSG_REMOVE_CMD) Removing output files of \"$(TARGET)\" + rm -f $(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss $(TARGET).sym $(TARGET).a + +all: build_begin check-source gcc-version elf hex lss sym size build_end + +lib: lib$(TARGET).a +elf: $(TARGET).elf +hex: $(TARGET).hex $(TARGET).eep +lss: $(TARGET).lss +sym: $(TARGET).sym + +$(OBJDIR)/%.o: %.c $(MAKEFILE_LIST) + @echo $(MSG_COMPILE_CMD) Compiling C file \"$(notdir $<)\" + $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_C_FLAGS) $(CC_FLAGS) $(C_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@ + +$(OBJDIR)/%.o: %.cpp $(MAKEFILE_LIST) + @echo $(MSG_COMPILE_CMD) Compiling C++ file \"$(notdir $<)\" + $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_CPP_FLAGS) $(CC_FLAGS) $(CPP_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@ + +$(OBJDIR)/%.o: %.S $(MAKEFILE_LIST) + @echo $(MSG_ASSEMBLE_CMD) Assembling \"$(notdir $<)\" + $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_ASM_FLAGS) $(CC_FLAGS) $(ASM_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@ + +.PRECIOUS : $(OBJECT_FILES) +.SECONDARY : %.a +%.a: $(OBJECT_FILES) + @echo $(MSG_ARCHIVE_CMD) Archiving object files into \"$@\" + $(CROSS)-ar rcs $@ $(OBJECT_FILES) + +.PRECIOUS : $(OBJECT_FILES) +.SECONDARY : %.elf +%.elf: $(OBJECT_FILES) + @echo $(MSG_LINK_CMD) Linking object files into \"$@\" + $(CROSS)-gcc $(BASE_CC_FLAGS) $(BASE_LD_FLAGS) $(CC_FLAGS) $(LD_FLAGS) $^ -o $@ + +%.hex: %.elf + @echo $(MSG_OBJCPY_CMD) Extracting HEX file data from \"$<\" + $(CROSS)-objcopy -O ihex -R .eeprom -R .fuse -R .lock -R .signature $< $@ + +%.eep: %.elf + @echo $(MSG_OBJCPY_CMD) Extracting EEP file data from \"$<\" + $(CROSS)-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings -O ihex $< $@ || exit 0 + +%.lss: %.elf + @echo $(MSG_OBJDMP_CMD) Extracting LSS file data from \"$<\" + $(CROSS)-objdump -h -S -z $< > $@ + +%.sym: %.elf + @echo $(MSG_NM_CMD) Extracting SYM file data from \"$<\" + $(CROSS)-nm -n $< > $@ + +# Include build dependency files +-include $(DEPENDENCY_FILES) + +# Phony build targets for this module +.PHONY: build_begin build_end gcc-version check-source size symbol-sizes lib elf hex lss clean mostlyclean |