portable/Makefile

#---------------------------------------------------------------------------------
# Clear the implicit built in rules
#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM)
endif

LIBGBA	:=	$(DEVKITPRO)/libgba

#---------------------------------------------------------------------------------
# path to tools - this can be deleted if you set the path in windows
#---------------------------------------------------------------------------------
export PATH		:=	$(DEVKITARM)/bin:$(PATH)

#---------------------------------------------------------------------------------
# the prefix on the compiler executables
#---------------------------------------------------------------------------------
PREFIX		:=	arm-eabi-

export CC		:=	$(PREFIX)gcc
export CXX		:=	$(PREFIX)g++
export AS		:=	$(PREFIX)as
export AR		:=	$(PREFIX)ar
export OBJCOPY	:=	$(PREFIX)objcopy

define adjustdepends
cp $(DEPSDIR)/$*.d $(DEPSDIR)/$*.P;
sed -e 's/#.*//' -e 's/^[^:]*: \+//' -e 's/^ *//' -e 's/ *\\$$//' -e '/^$$/ d' -e 's/$$/ :/' < $(DEPSDIR)/$*.P >> $(DEPSDIR)/$*.d;
rm $(DEPSDIR)/$*.P
endef

#---------------------------------------------------------------------------------
%.a:
#---------------------------------------------------------------------------------
	@echo "### " $(notdir $@)
	rm -f $@
	$(AR) -rc $@ $^

#---------------------------------------------------------------------------------
%.o: %.cpp
	@echo "### " $(notdir $<)
	$(CXX) -MMD -MF $(DEPSDIR)/$*.d $(CXXFLAGS) -c $< -o $@
	$(adjustdepends)

#---------------------------------------------------------------------------------
%.o: %.c
	@echo "### " $(notdir $<)
	$(CC) -MMD -MF $(DEPSDIR)/$*.d $(CFLAGS) -c $< -o $@
	$(adjustdepends)

#---------------------------------------------------------------------------------
%.o: %.s
	@echo $(notdir $<)
	$(CC) -MMD -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@
	$(adjustdepends)

#---------------------------------------------------------------------------------
%.o: %.S
	@echo $(notdir $<)
	$(CC) -MMD -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@
	$(adjustdepends)

#---------------------------------------------------------------------------------
# canned command sequence for binary data
#---------------------------------------------------------------------------------
define bin2o
	bin2s $< | $(AS) $(ARCH) -o $(@)
	echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(<F) | tr . _)`.h
	echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(<F) | tr . _)`.h
	echo "extern const u32" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(<F) | tr . _)`.h
endef



#---------------------------------------------------------------------------------
%.gba: %.elf
	$(OBJCOPY) -O binary $< $@
	@echo built ... $(notdir $@)
	@gbafix $@

#---------------------------------------------------------------------------------
%_mb.elf:
	@echo "### linking multiboot"
	$(LD) -specs=gba_mb.specs $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@

#---------------------------------------------------------------------------------
%.elf:
	@echo "### linking cartridge"
	$(LD)  $(LDFLAGS) -specs=gba.specs $(OFILES) $(LIBPATHS) $(LIBS) -o $@

#---------------------------------------------------------------------------------
# TARGET is the name of the output, if this ends with _mb generates a multiboot image
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
#---------------------------------------------------------------------------------
TARGET		:=	supertux
BUILD		:=	build
SOURCES		:=	src data
INCLUDES	:=

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-mthumb -mthumb-interwork

CFLAGS	:=	-g -Wall -O3\
			-mcpu=arm7tdmi -mtune=arm7tdmi\
			-fomit-frame-pointer\
			-ffast-math \
			$(ARCH)

CFLAGS	+=	$(INCLUDE)

CXXFLAGS	:=	-g -Wall -O3\
			-mcpu=arm7tdmi -mtune=arm7tdmi\
			-fomit-frame-pointer\
			-ffast-math \
			$(ARCH)

CXXFLAGS	+=	$(INCLUDE)

ASFLAGS	:=	$(ARCH)
LDFLAGS	=	-g $(ARCH) -Wl,-Map,$(notdir $@).map

#---------------------------------------------------------------------------------
# path to tools - this can be deleted if you set the path in windows
#---------------------------------------------------------------------------------
export PATH		:=	$(DEVKITARM)/bin:$(PATH)

#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project
#---------------------------------------------------------------------------------
LIBS	:=	-lgba -lm

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:=	$(LIBGBA)

#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export OUTPUT	:=	$(CURDIR)/$(TARGET)

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir))
export PATH	:=	$(DEVKITARM)/bin:$(PATH)
export DEPSDIR	:=	$(CURDIR)/$(BUILD)

#---------------------------------------------------------------------------------
# automatically build a list of object files for our project
#---------------------------------------------------------------------------------
CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
RAWFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.raw)))

#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
	export LD	:=	$(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
	export LD	:=	$(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES	:= $(RAWFILES:.raw=.o) $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)

#---------------------------------------------------------------------------------
# build a list of include paths
#---------------------------------------------------------------------------------
export INCLUDE	:= $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
					$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
					-I$(CURDIR)/$(BUILD)

#---------------------------------------------------------------------------------
# build a list of library paths
#---------------------------------------------------------------------------------
export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)

.PHONY: $(BUILD) clean

#---------------------------------------------------------------------------------
$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

all	: $(BUILD)
#---------------------------------------------------------------------------------
clean:
	rm -fr $(BUILD) $(TARGET).elf $(TARGET).gba

#---------------------------------------------------------------------------------
else

DEPENDS	:=	$(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).gba	:	$(OUTPUT).elf

$(OUTPUT).elf	:	$(OFILES)

%.o	:	%.raw
	@echo $(notdir $<)
	@$(bin2o)

-include $(DEPENDS)

#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------