#-------------------------------------------------------------------------------
.SUFFIXES:
#-------------------------------------------------------------------------------

ifeq ($(strip $(DEVKITPRO)),)
$(error "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to>/devkitPro")
endif

ifeq ($(strip $(DEVKITPPC)),)
$(error "Please set DEVKITPPC in your environment. export DEVKITPPC=<path to>/devkitPro/devkitPPC")
endif

TOPDIR ?= $(CURDIR)

include $(DEVKITPPC)/base_rules

MACHDEP	= -DESPRESSO -mcpu=750 -meabi -mhard-float

#-------------------------------------------------------------------------------
# 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		:=	hook_payload
BUILD		:=	build
BUILD_DBG	:=	$(TARGET)_dbg
SOURCES		:=	src \
				src/common \
				src/libelf \
				src/fs \
				src/dynamic_libs \
				src/kernel \
				src/memory \
				src/plugin \
				src/patcher \
				src/settings \
				src/system \
				src/utils

DATA		:=	data
INCLUDES	:=	src \
				src/libelf

#-------------------------------------------------------------------------------
# options for code generation
#-------------------------------------------------------------------------------
CFLAGS	:=	-g -Wall -O0 -ffunction-sections \
			$(MACHDEP)

CFLAGS	+=	$(INCLUDE) -D__WIIU__ -D_GNU_SOURCE

CXXFLAGS	:= $(CFLAGS)

ASFLAGS	:=	-g -mregnames $(ARCH)
LDFLAGS	=	-g $(ARCH) -nostartfiles -Wl,-Map,$(notdir $@).map,-wrap,malloc,-wrap,free,-wrap,memalign,-wrap,calloc,-wrap,realloc,-wrap,malloc_usable_size,-wrap,_malloc_r,-wrap,_free_r,-wrap,_realloc_r,-wrap,_calloc_r,-wrap,_memalign_r,-wrap,_malloc_usable_size_r,-wrap,valloc,-wrap,_valloc_r,-wrap,_pvalloc_r,--gc-sections

LIBS	:=

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


#---------------------------------------------------------------------------------
# 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)))
BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
TTFFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.ttf)))
PNGFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.png)))

#---------------------------------------------------------------------------------
# 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) \
					$(PNGFILES:.png=.png.o) $(addsuffix .o,$(BINFILES))

#---------------------------------------------------------------------------------
# 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)

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

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

#---------------------------------------------------------------------------------
clean:
	@rm -fr $(BUILD) $(OUTPUT).elf $(BUILD_DBG).elf

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

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

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

#---------------------------------------------------------------------------------
# This rule links in binary data with the .jpg extension
#---------------------------------------------------------------------------------
%.elf: link.ld $(OFILES)
	@echo "linking ... $(TARGET).elf"
	$(Q)$(LD) -n -T $^ $(LDFLAGS) -o ../$(BUILD_DBG).elf  $(LIBPATHS) $(LIBS)
	$(Q)$(OBJCOPY) -S -R .comment -R .gnu.attributes ../$(BUILD_DBG).elf $@

#---------------------------------------------------------------------------------
%.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)

#---------------------------------------------------------------------------------
%.png.o : %.png
	@echo $(notdir $<)
	@bin2s -a 32 $< | $(AS) -o $(@)

#---------------------------------------------------------------------------------
%.ttf.o : %.ttf
	@echo $(notdir $<)
	@bin2s -a 32 $< | $(AS) -o $(@)

-include $(DEPENDS)

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