idk wip

Makefile

@@ -1,7 +1,166 @@
-CFLAGS 	= -lm
+# SPDX-License-Identifier: CC0-1.0
+#
+# SPDX-FileContributor: Antonio Niño Díaz, 2022
 
-build:
-	cc ./main.c $(CFLAGS) -DVBUF -o ./cube
+# User config
+# ===========
 
-run: build
-	./cube
+# ROM config
+# ----------
+
+NAME		:= vi
+GAME_TITLE	:= "VIOLET'S CV"
+GAME_CODE	:= "00"
+
+# Defines passed to all files
+# ---------------------------
+
+DEFINES		:=
+
+# Libraries
+# ---------
+
+LIBS		:= -lc
+LIBDIRS		:= # A list of paths
+
+# Include paths
+# -------------
+
+INCLUDES	:= # A list of paths
+
+# Tools
+# -----
+
+PREFIX		:= arm-none-eabi-
+CC		:= $(PREFIX)gcc
+CXX		:= $(PREFIX)g++
+OBJDUMP		:= $(PREFIX)objdump
+OBJCOPY		:= $(PREFIX)objcopy
+MKDIR		:= mkdir
+RM		:= rm -rf
+
+# Verbose flag
+# ------------
+
+# `make V=` builds the binary in verbose build mode
+V		:= @
+
+# Directories
+# -----------
+
+SOURCEDIR	:= source
+BUILDDIR	:= build
+
+# Build artfacts
+# --------------
+
+ELF		:= $(NAME).elf
+DUMP		:= $(NAME).dump
+ROM		:= $(NAME).gba
+MAP		:= $(NAME).map
+
+GBAFIX		:= gbafix/gbafix
+
+# Source files
+# ------------
+
+SOURCES_S	:= $(wildcard $(SOURCEDIR)/*.s $(SOURCEDIR)/**/*.s)
+SOURCES_C	:= $(wildcard $(SOURCEDIR)/*.c $(SOURCEDIR)/**/*.c)
+SOURCES_CPP	:= $(wildcard $(SOURCEDIR)/*.cpp $(SOURCEDIR)/**/*.cpp)
+
+# Compiler and linker flags
+# -------------------------
+
+DEFINES		+= -D__GBA__
+
+ARCH		:= -mcpu=arm7tdmi -mtune=arm7tdmi
+
+WARNFLAGS	:= -Wall
+
+INCLUDEFLAGS	:= $(foreach path,$(INCLUDES),-I$(path)) \
+		   $(foreach path,$(LIBDIRS),-I$(path)/include)
+
+LIBDIRSFLAGS	:= $(foreach path,$(LIBDIRS),-L$(path)/lib)
+
+ASFLAGS		+= -x assembler-with-cpp $(DEFINES) $(ARCH) \
+		   -mthumb -mthumb-interwork $(INCLUDEFLAGS) \
+		   -ffunction-sections -fdata-sections -lm
+
+CFLAGS		+= -std=gnu11 $(WARNFLAGS) $(DEFINES) $(ARCH) \
+		   -mthumb -mthumb-interwork $(INCLUDEFLAGS) -O2 \
+		   -ffunction-sections -fdata-sections -lm -g
+
+CXXFLAGS	+= -std=gnu++14 $(WARNFLAGS) $(DEFINES) $(ARCH) \
+		   -mthumb -mthumb-interwork $(INCLUDEFLAGS) -O2 \
+		   -ffunction-sections -fdata-sections \
+		   -fno-exceptions -fno-rtti
+
+LDFLAGS		:= -mthumb -mthumb-interwork $(LIBDIRSFLAGS) \
+		   -Wl,-Map,$(MAP) -Wl,--gc-sections \
+		   -specs=nano.specs -T source/sys/gba_cart.ld \
+		   -Wl,--start-group $(LIBS) -Wl,--end-group -lm
+
+# Intermediate build files
+# ------------------------
+
+OBJS		:= \
+	$(patsubst $(SOURCEDIR)/%.s,$(BUILDDIR)/%.s.o,$(SOURCES_S)) \
+	$(patsubst $(SOURCEDIR)/%.c,$(BUILDDIR)/%.c.o,$(SOURCES_C)) \
+	$(patsubst $(SOURCEDIR)/%.cpp,$(BUILDDIR)/%.cpp.o,$(SOURCES_CPP))
+
+DEPS		:= $(OBJS:.o=.d)
+
+# Rules
+# -----
+
+$(BUILDDIR)/%.s.o : $(SOURCEDIR)/%.s
+	@echo "  AS      $<"
+	@$(MKDIR) -p $(@D) # Build target's directory if it doesn't exist
+	$(V)$(CC) $(ASFLAGS) -MMD -MP -c -o $@ $<
+
+$(BUILDDIR)/%.c.o : $(SOURCEDIR)/%.c
+	@echo "  CC      $<"
+	@$(MKDIR) -p $(@D) # Build target's directory if it doesn't exist
+	$(V)$(CC) $(CFLAGS) -MMD -MP -c -o $@ $<
+
+$(BUILDDIR)/%.cpp.o : $(SOURCEDIR)/%.cpp
+	@echo "  CXX     $<"
+	@$(MKDIR) -p $(@D) # Build target's directory if it doesn't exist
+	$(V)$(CXX) $(CXXFLAGS) -MMD -MP -c -o $@ $<
+
+
+# Targets
+# -------
+
+.PHONY: all clean dump
+
+all: $(ROM)
+
+$(GBAFIX):
+	$(V)cd gbafix && make
+
+$(ELF): $(OBJS)
+	@echo "  LD      $@"
+	$(V)$(CC) -o $@ $(OBJS) $(LDFLAGS)
+
+$(ROM): $(ELF) $(GBAFIX)
+	@echo "  OBJCOPY $<"
+	$(V)$(OBJCOPY) -O binary $< $@
+	@echo "  GBAFIX  $@"
+	$(V)$(GBAFIX) $@ -t$(GAME_TITLE) -c$(GAME_CODE)
+
+$(DUMP): $(ELF)
+	@echo "  OBJDUMP $@"
+	$(V)$(OBJDUMP) -h -C -S $< > $@
+
+dump: $(DUMP)
+
+clean:
+	@echo "  CLEAN"
+	$(V)$(RM) $(ROM) $(ELF) $(DUMP) $(MAP) $(BUILDDIR)
+	$(V)cd gbafix && make clean
+
+# Include dependency files if they exist
+# --------------------------------------
+
+-include $(DEPS)