sa2/Makefile

TOOLCHAIN := $(DEVKITARM)
COMPARE ?= 0

ifeq (compare,$(MAKECMDGOALS))
  COMPARE := 1
endif

# don't use dkP's base_tools anymore
# because the redefinition of $(CC) conflicts
# with when we want to use $(CC) to preprocess files
# thus, manually create the variables for the bin
# files, or use arm-none-eabi binaries on the system
# if dkP is not installed on this system

ifneq (,$(TOOLCHAIN))
ifneq ($(wildcard $(TOOLCHAIN)/bin),)
export PATH := $(TOOLCHAIN)/bin:$(PATH)
endif
endif

PREFIX := arm-none-eabi-

include config.mk

ifeq ($(OS),Windows_NT)
EXE := .exe
else
EXE :=
endif

#### Tools ####
SHELL     := /bin/bash -o pipefail
SHA1 	  := $(shell { command -v sha1sum || command -v shasum; } 2>/dev/null) -c

CC1       := tools/agbcc/bin/agbcc$(EXE)
CC1_OLD   := tools/agbcc/bin/old_agbcc$(EXE)

CPP       := $(PREFIX)cpp
LD        := $(PREFIX)ld
OBJCOPY   := $(PREFIX)objcopy
AS 		  := $(PREFIX)as

FORMAT    := clang-format-13

GFX 	  := tools/gbagfx/gbagfx$(EXE)
AIF		  := tools/aif2pcm/aif2pcm$(EXE)
MID2AGB   := tools/mid2agb/mid2agb$(EXE)
SCANINC   := tools/scaninc/scaninc$(EXE)
PREPROC	  := tools/preproc/preproc$(EXE)
RAMSCRGEN := tools/ramscrgen/ramscrgen$(EXE)
FIX 	  := tools/gbafix/gbafix$(EXE)

TOOLDIRS := $(filter-out tools/Makefile tools/agbcc tools/binutils,$(wildcard tools/*))
TOOLBASE = $(TOOLDIRS:tools/%=%)
TOOLS = $(foreach tool,$(TOOLBASE),tools/$(tool)/$(tool)$(EXE))

CC1FLAGS := -mthumb-interwork -Wimplicit -Wparentheses -O2 -fhex-asm -Werror
CPPFLAGS := -I tools/agbcc/include -iquote include -nostdinc
ASFLAGS  := -mcpu=arm7tdmi -mthumb-interwork -I asminclude


# Clear the default suffixes
.SUFFIXES:
# Don't delete intermediate files
.SECONDARY:
# Delete files that weren't built properly
.DELETE_ON_ERROR:

# Secondary expansion is required for dependency variables in object rules.
.SECONDEXPANSION:

# these commands will run regardless of deps being completed
.PHONY: __rom clean tools clean-tools $(TOOLDIRS)

# ensure that we don't scan deps if we are not running
# any of these commands
ifeq (,$(filter-out all rom __rom compare,$(MAKECMDGOALS)))
$(call infoshell, $(MAKE) -f tools/Makefile)
else
NODEP ?= 1
endif

#### Files ####
OBJ_DIR:= build/sa2
ROM      := sa2.gba
ELF      := $(ROM:.gba=.elf)
MAP      := $(ROM:.gba=.map)
LDSCRIPT := ldscript.txt

C_SUBDIR = src
ASM_SUBDIR = asm
DATA_ASM_SUBDIR = data

SONG_SUBDIR = sound/songs
SOUND_ASM_SUBDIR = sound
MID_SUBDIR = sound/songs/midi
SAMPLE_SUBDIR = sound/direct_sound_samples

OBJ_TILES_4BPP_SUBDIR = graphics/obj_tiles/4bpp

C_BUILDDIR = $(OBJ_DIR)/$(C_SUBDIR)
ASM_BUILDDIR = $(OBJ_DIR)/$(ASM_SUBDIR)
DATA_ASM_BUILDDIR = $(OBJ_DIR)/$(DATA_ASM_SUBDIR)
SONG_BUILDDIR = $(OBJ_DIR)/$(SONG_SUBDIR)
SOUND_ASM_BUILDDIR = $(OBJ_DIR)/$(SOUND_ASM_SUBDIR)
MID_BUILDDIR = $(OBJ_DIR)/$(MID_SUBDIR)

$(shell mkdir -p $(C_BUILDDIR) $(ASM_BUILDDIR) $(DATA_ASM_BUILDDIR) $(SOUND_ASM_BUILDDIR) $(SONG_BUILDDIR) $(MID_BUILDDIR))

C_SRCS := $(wildcard $(C_SUBDIR)/*.c)
C_OBJS := $(patsubst $(C_SUBDIR)/%.c,$(C_BUILDDIR)/%.o,$(C_SRCS))

ASM_SRCS := $(wildcard $(ASM_SUBDIR)/*.s)
ASM_OBJS := $(patsubst $(ASM_SUBDIR)/%.s,$(ASM_BUILDDIR)/%.o,$(ASM_SRCS))

DATA_ASM_SRCS := $(wildcard $(DATA_ASM_SUBDIR)/*.s)
DATA_ASM_OBJS := $(patsubst $(DATA_ASM_SUBDIR)/%.s,$(DATA_ASM_BUILDDIR)/%.o,$(DATA_ASM_SRCS))

SONG_SRCS := $(wildcard $(SONG_SUBDIR)/*.s)
SONG_OBJS := $(patsubst $(SONG_SUBDIR)/%.s,$(SONG_BUILDDIR)/%.o,$(SONG_SRCS))

MID_SRCS := $(wildcard $(MID_SUBDIR)/*.mid)
MID_OBJS := $(patsubst $(MID_SUBDIR)/%.mid,$(MID_BUILDDIR)/%.o,$(MID_SRCS))

SOUND_ASM_SRCS := $(wildcard $(SOUND_ASM_SUBDIR)/*.s)
SOUND_ASM_OBJS := $(patsubst $(SOUND_ASM_SUBDIR)/%.s,$(SOUND_ASM_BUILDDIR)/%.o,$(SOUND_ASM_SRCS))

OBJS := $(C_OBJS) $(ASM_OBJS) $(DATA_ASM_OBJS) $(SONG_OBJS) $(MID_OBJS)
OBJS_REL := $(patsubst $(OBJ_DIR)/%,%,$(OBJS))

# Use the old compiler for m4a, as it was prebuilt and statically linked
# to the original codebase
$(C_BUILDDIR)/m4a.o: CC1 := $(CC1_OLD)

# Use `-O1` for agb_flash libs, as these were also prebuilt
$(C_BUILDDIR)/agb_flash.o: CC1FLAGS := -O1 -mthumb-interwork -Werror
$(C_BUILDDIR)/agb_flash%.o: CC1FLAGS := -O1 -mthumb-interwork -Werror

ifeq ($(DINFO),1)
override CC1FLAGS += -g
endif

#### Main Targets ####

MAKEFLAGS += --no-print-directory

all: compare

# Ensure that tools are built before building the rom
rom: tools
	@$(MAKE) __rom
__rom: $(ROM)
# Dummy command to make sure we don't print
# even when rom is already built
	@echo > /dev/null

tools: $(TOOLDIRS)

format:
	@echo $(FORMAT) -i -style=file "**/*.c" "**/*.h"
	@$(FORMAT) -i -style=file $(shell find . -name "*.c" ! -path '*/build/*') $(shell find . -name "*.h" ! -path '*/build/*')

check_format:
	@echo $(FORMAT) -i -style=file --dry-run --Werror "**/*.c" "**/*.h"
	@$(FORMAT) -i -style=file --dry-run --Werror $(shell find . -name "*.c" ! -path '*/build/*') $(shell find . -name "*.h" ! -path '*/build/*')

$(TOOLDIRS):
	@$(MAKE) -C $@

compare: rom
	$(SHA1) checksum.sha1

clean: tidy clean-tools
	@$(MAKE) clean -C chao_garden
	@$(MAKE) clean -C multi_boot/subgame_loader

	$(RM) $(SAMPLE_SUBDIR)/*.bin $(MID_SUBDIR)/*.s
	find . \( -iname '*.1bpp' -o -iname '*.4bpp' -o -iname '*.8bpp' -o -iname '*.gbapal' -o -iname '*.lz' -o -iname '*.latfont' -o -iname '*.hwjpnfont' -o -iname '*.fwjpnfont' \) -exec $(RM) {} +

clean-tools:
	@$(foreach tooldir,$(TOOLDIRS),$(MAKE) clean -C $(tooldir);)

tidy:
	$(RM) -f $(ROM) $(ELF) $(MAP)
	$(RM) -r build/*

#### Recipes ####

include songs.mk
include graphics.mk

%.s: ;
%.png: ;
%.pal: ;

%.1bpp: %.png  ; $(GFX) $< $@
%.4bpp: %.png  ; $(GFX) $< $@
%.8bpp: %.png  ; $(GFX) $< $@
%.gbapal: %.pal ; $(GFX) $< $@
%.gbapal: %.png ; $(GFX) $< $@
%.gba.lz: %.gba 
	$(GFX) $< $@ -search 1
%.bin.lz: %.bin 
	$(GFX) $< $@
%.lz: % ; $(GFX) $< $@
%.rl: % ; $(GFX) $< $@

%.bin: %.aif ; $(AIF) $< $@

$(ELF): $(OBJS) $(LDSCRIPT)
	@echo "$(LD) -T $(LD_SCRIPT) -Map $(MAP) <objects> <lib>"
	@$(LD) -T $(LDSCRIPT) -Map $(MAP) $(OBJS) tools/agbcc/lib/libgcc.a tools/agbcc/lib/libc.a -o $@

$(ROM): $(ELF)
	$(OBJCOPY) -O binary --pad-to 0x8400000 $< $@
	$(FIX) $@ -p -t"$(TITLE)" -c$(GAME_CODE) -m$(MAKER_CODE) -r$(GAME_REVISION) --silent

ifeq ($(NODEP),1)
$(C_BUILDDIR)/%.o: c_dep :=
else
$(C_BUILDDIR)/%.o: c_dep = $(shell $(SCANINC) -I include $(C_SUBDIR)/$*.c)
endif

# Build c sources, and ensure alignment
$(C_BUILDDIR)/%.o : $(C_SUBDIR)/%.c $$(c_dep)
	@echo "$(CC1) <flags> -o $@ $<"
	@$(CPP) $(CPPFLAGS) $< -o $(C_BUILDDIR)/$*.i
	@$(PREPROC) $(C_BUILDDIR)/$*.i | $(CC1) $(CC1FLAGS) -o $(C_BUILDDIR)/$*.s
	@printf ".text\n\t.align\t2, 0\n" >> $(C_BUILDDIR)/$*.s
	@$(AS) $(ASFLAGS) -o $@ $(C_BUILDDIR)/$*.s

ifeq ($(NODEP),1)
$(ASM_BUILDDIR)/%.o: asm_dep :=
else
$(ASM_BUILDDIR)/%.o: asm_dep = $(shell $(SCANINC) $(ASM_SUBDIR)/$*.s)
endif

$(ASM_BUILDDIR)/%.o: $(ASM_SUBDIR)/%.s $$(asm_dep)
	@echo "$(AS) <flags> -o $@ $<"
	@$(AS) $(ASFLAGS) -o $@ $<


ifeq ($(NODEP),1)
$(DATA_ASM_BUILDDIR)/%.o: data_dep :=
else
$(DATA_ASM_BUILDDIR)/%.o: data_dep = $(shell $(SCANINC) $(DATA_ASM_SUBDIR)/$*.s)
endif

$(DATA_ASM_BUILDDIR)/%.o: $(DATA_ASM_SUBDIR)/%.s $$(data_dep)
	@echo "$(AS) <flags> -o $@ $<"
	@$(PREPROC) $< | $(CPP) $(CPPFLAGS) - | $(AS) $(ASFLAGS) -o $@

$(SONG_BUILDDIR)/%.o: $(SONG_SUBDIR)/%.s
	@echo "$(AS) <flags> -I sound -o $@ $<"
	@$(AS) $(ASFLAGS) -I sound -o $@ $<

chao_garden/mb_chao_garden.gba: 
	$(MAKE) -C chao_garden

chao_garden: tools
	$(MAKE) -C chao_garden

multi_boot/subgame_loader/mb_subgame_loader.gba: 
	$(MAKE) -C multi_boot/subgame_loader

subgame_loader: tools
	$(MAKE) -C multi_boot/subgame_loader