Makefile.dreamcast

# Compiler Definitions
CC      = kos-cc
CXX     = kos-c++

# Compiler Flags
CFLAGS      += -DLSB_FIRST -DALIGN_DWORD -DDREAMCAST -DNOMUTEX -Ofast -std=gnu11 -flto
CFLAGS      += -Isrc -Isrc/dc
CXXFLAGS    = $(CFLAGS) -std=gnu17 -fno-exceptions -fno-rtti

# Linker Flags
LDFLAGS = -lc -lm -lSDL -lz -s -flto -Wl,--as-needed -Wl,--gc-sections

# Output Executable
OUTPUT = llama_dc.elf

# Source Directories
SRCDIR      = ./src ./src/dc
VPATH       = $(SRCDIR)

# Source Files
SRC_C       = $(foreach dir, $(SRCDIR), $(wildcard $(dir)/*.c))
SRC_CP      = $(foreach dir, $(SRCDIR), $(wildcard $(dir)/*.cpp))

# Object Files
OBJ_C       = $(notdir $(patsubst %.c, %.o, $(SRC_C)))
OBJ_CP      = $(notdir $(patsubst %.cpp, %.o, $(SRC_CP)))
OBJS        = $(OBJ_C) $(OBJ_CP)

# Assembly Files
ASM_S       = $(patsubst %.c, %.s, $(SRC_C)) $(patsubst %.cpp, %.s, $(SRC_CP))

# Assembly Generation Flags for C and C++ (Lower Optimization, No LTO)
ASFLAGS_C    = -O0 -std=gnu11 -S
ASFLAGS_CPP  = -O0 -std=gnu17 -S -fno-exceptions -fno-rtti

# Default Target
all: $(OUTPUT) asm

# Linking the Final Executable
$(OUTPUT): $(OBJS)
	$(CXX) $(CXXFLAGS) -o $(OUTPUT) $(OBJS) $(LDFLAGS)

# Pattern Rule to Compile C Source Files to Object Files
%.o: %.c
	$(CC) $(CFLAGS) -c $< -o $@

# Pattern Rule to Compile C++ Source Files to Object Files
%.o: %.cpp
	$(CXX) $(CXXFLAGS) -c $< -o $@

# Pattern Rules to Generate Assembly Files from C and C++ Source Files
%.s: %.c
	$(CC) $(CFLAGS) $(ASFLAGS_C) $< -o $@

%.s: %.cpp
	$(CXX) $(CXXFLAGS) $(ASFLAGS_CPP) $< -o $@

# Target to Generate All Assembly Files
asm: $(ASM_S)

# Packaging Targets
pack_unused_cdda:
	rm -f IP.BIN
	sh-elf-objcopy -R .stack -O binary $(OUTPUT) main.bin
	${KOS_BASE}/utils/scramble/scramble main.bin ./cd/1ST_READ.BIN
	makeip ip.txt IP.BIN
	mkisofs -C 0,$(shell lbacalc track1.raw track2.raw track3.raw) -V OVERHEATED -G IP.BIN -joliet -rock -l -o "llama.iso" ./cd
	mds4dc -c llama.mds llama.iso track1.raw track2.raw track3.raw

pack:
	rm -f IP.BIN
	sh-elf-objcopy -R .stack -O binary $(OUTPUT) main.bin
	${KOS_BASE}/utils/scramble/scramble main.bin ./cd/1ST_READ.BIN
	makeip ip.txt IP.BIN
	mkisofs -V llama -G IP.BIN -joliet -rock -l -x cd -o "llama.iso" ./cd
	cdi4dc llama.iso llama.cdi -d

# Clean Target to Remove Generated Files
clean:
	rm -f *.o *.img src/*.o src/sdl/*.o src/dc/*.o src/enemies/*.o $(OUTPUT) *.BIN *.iso *.mds *.mdf *.s