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qmk_firmware/LUFA/Build/lufa.build.in

197 lines
7.4 KiB

#
# LUFA Library
# Copyright (C) Dean Camera, 2012.
#
# dean [at] fourwalledcubicle [dot] com
# www.lufa-lib.org
#
LUFA_BUILD_MODULES += BUILD
LUFA_BUILD_TARGETS += size checksource all elf hex clean
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
# -----------------------------------------------------------------------------
# LUFA 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 application size
# checksource - Check existance of listed input source files
# all - Build application and list size
# elf - Build application ELF debug object file
# hex - Build application HEX object files
# clean - Remove output files
#
# MANDATORY PARAMETERS:
#
# TARGET - Application name
# ARCH - Device architecture name
# MCU - Microcontroller device model name
# SRC - List of input source files (.c, .cpp/.c++, .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
#
# -----------------------------------------------------------------------------
# Sanity-check values of mandatory user-supplied variables
MCU ?= $(error Makefile MCU value not set.)
TARGET ?= $(error Makefile TARGET value not set.)
ARCH ?= $(error Makefile ARCH value not set.)
SRC ?= $(error Makefile SRC value not set.)
F_USB ?= $(error Makefile F_USB value not set.)
LUFA_PATH ?= $(error Makefile LUFA_PATH value not set.)
# Default values of optionally user-supplied variables
BOARD ?= NONE
OPTIMIZATION ?= s
F_CPU ?=
C_STANDARD ?= gnu99
CPP_STANDARD ?= gnu++98
C_FLAGS ?=
CPP_FLAGS ?=
ASM_FLAGS ?=
CC_FLAGS ?=
# Output Messages
MSG_BUILD_BEGIN = Begin compilation of project \"$(TARGET)\"...
MSG_BUILD_END = Finished building project \"$(TARGET)\"...
MSG_COMPILE_CMD = ' [CC] :'
MSG_REMOVE_CMD = ' [RM] :'
MSG_LINKER_CMD = ' [LNK] :'
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))
# Convert input source filenames into a list of required output object files
OBJECT_FILES = $(filter %.o, $(C_SOURCE:%.c=%.o) $(CPP_SOURCE:%.cpp=%.o) $(ASM_SOURCE:%.S=%.o))
# Create a list of flags to pass to the compiler
ifeq ($(ARCH), AVR8)
CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct
CROSS = avr-
else ifeq ($(ARCH), XMEGA)
CC_FLAGS += -mmcu=$(MCU) -gdwarf-2 -fshort-enums -fno-inline-small-functions -fpack-struct
CROSS = avr-
else ifeq ($(ARCH), UC3)
CC_FLAGS += -mpart=$(MCU) -g3 -masm-addr-pseudos
CROSS = avr32-
else
$(error Unsupported architecture.)
endif
CC_FLAGS += -Wall -fno-strict-aliasing -funsigned-char -funsigned-bitfields -ffunction-sections
CC_FLAGS += -I. -I$(patsubst %/,%,$(LUFA_PATH))/..
CC_FLAGS += -DARCH=ARCH_$(ARCH) -DBOARD=BOARD_$(BOARD) -DF_USB=$(F_USB)UL
ifneq ($(F_CPU),)
CC_FLAGS += -DF_CPU=$(F_CPU)UL
endif
# Additional language specific compiler flags
C_FLAGS += -Wstrict-prototypes
# Create a list of flags to pass to the linker
LD_FLAGS += -Wl,-Map=$(TARGET).map,--cref -Wl,--gc-sections -lm
ifneq ($(F_CPU), UC3)
LD_FLAGS += -Wl,--relax
endif
# 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 formats: $(UNKNOWN_SOURCE))
endif
# Determine flags to pass to the size utility based on its reported features
SIZE_MCU_FLAG = $(shell avr-size --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
SIZE_FORMAT_FLAG = $(shell avr-size --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
begin:
@echo ""
@echo $(MSG_BUILD_BEGIN)
end:
@echo $(MSG_BUILD_END)
@echo ""
checksource:
@for f in $(SRC) $(CPPSRC) $(ASRC); do \
if [ -f $$f ]; then \
echo "Found Source File: $$f" ; \
else \
echo "Source File Not Found: $$f" ; \
fi; \
done
size:
@echo $(MSG_SIZE_CMD) Determining size of \"$(TARGET).elf\"
@if test -f $(TARGET).elf; then \
avr-size $(SIZE_MCU_FLAG) $(SIZE_FORMAT_FLAG) $(TARGET).elf ; 2>/dev/null; \
fi
.PHONY: begin elf hex lss size end
all: begin elf hex lss size end
elf: $(TARGET).elf
hex: $(TARGET).hex $(TARGET).eep
lss: $(TARGET).lss
%.o: %.c
@echo $(MSG_COMPILE_CMD) Compiling C file \"$<\"
$(CROSS)gcc -c $(CC_FLAGS) $(C_FLAGS) -O$(OPTIMIZATION) -std=$(C_STANDARD) $< -o $@
%.o: %.cpp
@echo $(MSG_COMPILE_CMD) Compiling C++ file \"$<\"
$(CROSS)gcc -c $(CC_FLAGS) $(CPP_FLAGS) -O$(OPTIMIZATION) -std=$(CPP_STANDARD) -x c++ $< -o $@
%.o: %.S
@echo $(MSG_COMPILE_CMD) Assembling \"$<\"
$(CROSS)gcc -c $(CC_FLAGS) $(ASM_FLAGS) -x assembler-with-cpp $< -o $@
.PRECIOUS : $(OBJECT_FILES)
%.elf: $(OBJECT_FILES)
@echo $(MSG_LINKER_CMD) Linking object files into \"$@\"
$(CROSS)gcc $^ $(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 $< > $@
clean:
@echo $(MSG_REMOVE_CMD) Removing object files \"$(strip $(notdir $(OBJECT_FILES)))\"
rm -f $(OBJECT_FILES)
@echo $(MSG_REMOVE_CMD) Removing output files \"$(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss\"
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss