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Makefile
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Makefile
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#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif
export PORTLIBS := $(PORTLIBS_PATH)/armv6k $(PORTLIBS_PATH)/3ds
#export PORTLIBS := $(DEVKITPRO)/portlibs/arm
export PATH := $(DEVKITARM)/bin:$(PORTLIBS)/bin:$(PATH)
CTRULIB := $(DEVKITPRO)/libctru
#---------------------------------------------------------------------------------
# the prefix on the compiler executables
#---------------------------------------------------------------------------------
PREFIX := arm-none-eabi-
export CC := $(PREFIX)gcc
export CXX := $(PREFIX)g++
export AS := $(PREFIX)as
export AR := $(PREFIX)ar
export OBJCOPY := $(PREFIX)objcopy
export OBJDUMP := $(PREFIX)objdump
#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
#---------------------------------------------------------------------------------
TARGET := newcode
BUILD := build
SOURCES := $(wildcard source/*/)
INCLUDES := include
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft -mfpu=vfpv2
CFLAGS := -g -Wall -O2 -mword-relocations \
-fomit-frame-pointer -ffunction-sections \
$(ARCH)
CFLAGS += $(INCLUDE) -DARM11 -D_3DS
CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
ASFLAGS := -g $(ARCH)
LDFLAGS = -T $(LINKERSCRIPT) -g $(ARCH) -Wl,-Map,$(notdir $*.map)
LIBS := -lctru -lm
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(CTRULIB) $(DEVKITARM) $(DEVKITARM)/arm-none-eabi
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export LINKERSCRIPT :=$(CURDIR)/linker.x
export OUTPUT := $(CURDIR)/$(TARGET)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir))
export DEPSDIR := $(CURDIR)/$(BUILD)
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
export LD := $(CC)
else
export LD := $(CXX)
endif
export OFILES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export INCLUDE := $(foreach dir,$(INCLUDES),-iquote $(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib) -L$(DEVKITARM)/lib/gcc/arm-none-eabi/7.1.0
.PHONY: $(BUILD) clean
#---------------------------------------------------------------------------------
$(BUILD):
@[ -d $@ ] || mkdir -p $@
@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(LINKERSCRIPT) $(TARGET).elf $(TARGET).bin $(TARGET).sym
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
ifeq ($(strip $(CODEADDR)),)
$(error "The code destination has to be defined. CODEADDR=<address>")
endif
#---------------------------------------------------------------------------------
# Linker Script Template
#---------------------------------------------------------------------------------
define LINKERSCRIPT_TEMPLATE
OUTPUT_ARCH(arm)
SECTIONS
{
. = $(CODEADDR);
.text : {
__text_start = . ;
*(.text)
*(.text.*)
*(.rodata)
*(.data)
*(.bss)
*(COMMON)
__text_end = . ;
}
}
endef
export LINKERSCRIPT_TEMPLATE
#---------------------------------------------------------------------------------
all: $(OUTPUT).bin $(OUTPUT).sym
$(OUTPUT).bin : $(OUTPUT).elf
$(OBJCOPY) -O binary $< $@
@echo built ... $(notdir $@)
$(OUTPUT).sym : $(OUTPUT).elf
$(OBJDUMP) -t $< > $@
@echo written the symbol table ... $(notdir $@)
#---------------------------------------------------------------------------------
%.elf: $(OFILES)
@echo generating linker script
echo "$$LINKERSCRIPT_TEMPLATE" > $(LINKERSCRIPT)
@echo linking $(notdir $@)
$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
#---------------------------------------------------------------------------------
%.o: %.cpp
@echo $(notdir $<)
$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.d $(CXXFLAGS) -c $< -o $@ $(ERROR_FILTER)
#---------------------------------------------------------------------------------
%.o: %.c
@echo $(notdir $<)
$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d $(CFLAGS) -c $< -o $@ $(ERROR_FILTER)
#---------------------------------------------------------------------------------
%.o: %.s
@echo $(notdir $<)
$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@ $(ERROR_FILTER)
-include $(DEPSDIR)/*.d
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------