MakeFile

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

PREFIX	:=	powerpc-eabi-

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

#---------------------------------------------------------------------------------
# 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
# INCLUDES is a list of directories containing extra header files
#---------------------------------------------------------------------------------
TARGET		:=	build/lib
BUILD		:=	build
BUILD_DBG	:=	$(TARGET)_dbg
SOURCES		:=	source \
				source/common \
				source/imports \
				source/network \
				source/memory \
				source/watcher \
				source/watcher/Common \
				source/watcher/EmuProcess \
				source/utils
DATA		:=

INCLUDES	:=  source

#---------------------------------------------------------------------------------
# options for code generation
# DB: if the C++ .eh_frame sections are problematic, remove them from CXXFLAGS via -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables
# DB: -fno-common: Disable common section allowing uninitialized variables to reserve space and work with the RomHack compiler
#---------------------------------------------------------------------------------
CFLAGS	:= -std=gnu11 -mrvl -mcpu=750 -meabi -mhard-float -ffast-math -G 0 \
		   -ffunction-sections -fdata-sections \
		   -fno-common \
		   -Wall -Wextra -Wno-unused-variable -Wno-unused-parameter -Wno-unused-label -Wno-strict-aliasing \
		   -O3 $(INCLUDE)
CXXFLAGS := -std=gnu++11 -mrvl -mcpu=750 -meabi -mhard-float -ffast-math -G 0 \
		   -ffunction-sections -fdata-sections \
		   -fno-common \
		   -Wall -Wextra -Wno-unused-variable -Wno-unused-parameter -Wno-unused-label -Wno-strict-aliasing \
		   -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables \
		   -O3 $(INCLUDE)
ASFLAGS	:= -mregnames
LDFLAGS	:= -nostartfiles -Wl,-Map,$(notdir $@).map,--gc-sections

#---------------------------------------------------------------------------------
Q := @
MAKEFLAGS += --no-print-directory

#---------------------------------------------------------------------------------
# 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 PROJECTDIR := $(CURDIR)
export OUTPUT	:=	$(CURDIR)/$(TARGETDIR)/$(TARGET)
export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
					$(foreach dir,$(DATA),$(CURDIR)/$(dir))
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)))
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) $(SFILES:.S=.o)

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


export OUTPUT	:=	$(CURDIR)/$(TARGET)
.PHONY: $(BUILD) clean install

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

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD)

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

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

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).a: $(OFILES)

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

#---------------------------------------------------------------------------------
%.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 $(DEPENDS)

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