Wizardry.mk

# We need $(CC) to build things in bin/, so we use a modified version of the
# devkitARM includefile to export a different set of compiler variables.
#
# CR cam: fix this
include $(VENDOR_DIR)/devkitARM_base_tools.mk

CACHE_DIR := $(BUILD_DIR)/cache
$(shell mkdir -p $(CACHE_DIR) > /dev/null)

FE8_SYMBOLS := $(VENDOR_DIR)/fe8-symbols.s

LYN_REFERENCE := $(BUILD_DIR)/fe8-reference.o

%.lyn.event: %.o $(LYN_REFERENCE) $(LYN)
	$(LYN) $< $(LYN_REFERENCE) > $@

%.dmp: %.o
	$(ARM_OBJCOPY) -S $< -O binary $@

# In theory, libgbafe and the decomp headers are incompatible, but it should be
# fine as long as we never try to include both in the same file.
INCLUDE_DIRS := include $(VENDOR_DIR)/fireemblem8u/include $(VENDOR_DIR)/CLib/include
INCFLAGS := $(foreach dir, $(INCLUDE_DIRS), -I "$(dir)")

ARCH := -mcpu=arm7tdmi -mthumb -mthumb-interwork
CFLAGS := $(ARCH) $(INCFLAGS) -Wall -Werror -mtune=arm7tdmi -ffreestanding -mlong-calls -O2 -fno-tree-switch-conversion -Wno-array-parameter
ASFLAGS := $(ARCH) $(INCFLAGS)

CDEPFLAGS = -MMD -MT "$*.o" -MT "$*.s" -MF "$(CACHE_DIR)/$(notdir $*).d" -MP
SDEPFLAGS = --MD "$(CACHE_DIR)/$(notdir $*).d"

FIREEMBLEM8U ?= $(error set FIREEMBLEM8U and build decomp to build fe8 symbols)

$(LYN_REFERENCE): $(FE8_SYMBOLS)
	$(ARM_AS) $(ASFLAGS) $(SDEPFLAGS) $< -o $@

# CR cam: separate build dir

%.o: %.c
	$(ARM_CC) $(CFLAGS) $(CDEPFLAGS) -g -c $< -o $@

%.o: %.s
	$(ARM_AS) $(ASFLAGS) $(SDEPFLAGS) -I $(dir $<) $< -o $@

%.asm: %.c
	$(ARM_CC) $(CFLAGS) $(CDEPFLAGS) -S $< -o $@ -fverbose-asm

.SECONDARY:

.PHONY: fe8-symbols
fe8-symbols:
	python $(BIN_DIR)/elf2ref.py $(FIREEMBLEM8U)/fireemblem8.elf > $(FE8_SYMBOLS)

-include $(wildcard $(CACHE_DIR)/*.d)