Initial commit preparing the makefile

1 files changed, 93 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..62f0c8d
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+++ b/Makefile
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+.POSIX:
+.SUFFIXES:
+
+# Paths for SDK.
+SDK_BASE     := /opt/n64sdk
+SDK_BIN      := $(SDK_BASE)/bin
+LIBULTRA_DIR := $(SDK_BASE)/libultra
+LIBULTRA_INC := $(LIBULTRA_DIR)/usr/include
+LIBULTRA     := $(LIBULTRA_DIR)/usr/lib/libgultra.a
+
+# Source code location and files to watch for changes.
+SRC_DIR     := src
+BUILD_DIR   := build
+SRC_MAIN    := $(SRC_DIR)/onetri.c \
+                           $(SRC_DIR)/dram_stack.c \
+                           $(SRC_DIR)/rdp_output.c
+SRC_OBJ     := $(SRC_DIR)/static.c \
+                           $(SRC_DIR)/cfb.c \
+                           $(SRC_DIR)/rsp_cfb.c
+OBJECTS     := $(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.o, $(SRC_OBJ))
+
+WATCH_SRC   := $(shell find $(SRC_DIR) -name "*.c" -or -name "*.s" -or -name "*.h")
+INC_DIRS    := $(shell find $(SRC_DIR) -type d)
+INC_DIRS    += $(LIBULTRA_INC)
+INC_FLAGS   := $(addprefix -I,$(INC_DIRS))
+
+datafiles = $(SRC_DIR)/static.c $(SRC_DIR)/cfb.c $(SRC_DIR)/rsp_cfb.c
+dataobjects = $(datafiles:.c=.o)
+
+# Output names and executables.
+TARGET := blank
+ELF    := $(BUILD_DIR)/$(TARGET).elf
+BIN    := $(BUILD_DIR)/$(TARGET).n64
+
+# Main compilation tool paths.
+CC       := $(SDK_BIN)/mips32-elf-gcc
+LD       := $(SDK_BIN)/mips32-elf-ld
+AS       := $(SDK_BIN)/mips32-elf-as
+OBJDUMP  := $(SDK_BIN)/mips32-elf-objdump
+# TODO: Replace with internal tools to avoid dependencies.
+SPICY    := $(SDK_BIN)/spicy
+MAKEMASK := $(SDK_BIN)/makemask
+
+# Compiler and linker configuration.
+CFLAGS         := -Wall -Wextra -pedantic
+CFLAGS         += -mabi=32 -mfix4300
+CFLAGS         += -ffreestanding -G 0
+CFLAGS         += $(INC_FLAGS)
+CFLAGS         += -DF3DEX_GBI_2 -nostdlib -r
+LDFLAGS        := -nostdlib -r
+LDLIBS         := $(LIBULTRA) $(SDK_BASE)/lib/gcc/mips32-elf/13.0.0/libgcc.a
+RELEASE_CFLAGS := -O2 -DNDEBUG -D_FINALROM
+DEBUG_CFLAGS   := -O0 -DDEBUG -D_FINALROM
+
+# Setup debug/release builds.
+#     make clean && make <target> DEBUG=0
+#     make clean && make <target> DEBUG=1
+DEBUG ?= 0
+ifeq ($(DEBUG), 1)
+    CFLAGS += $(DEBUG_CFLAGS)
+else
+    CFLAGS += $(RELEASE_CFLAGS)
+endif
+
+main: $(BIN)
+
+$(ELF): $(SRC_MAIN) $(WATCH_SRC)
+        mkdir -p $(BUILD_DIR)
+        $(CC) $(CFLAGS) $(LDFLAGS) -o $(ELF) $(SRC_MAIN) $(LDLIBS)
+
+$(BIN): $(ELF) $(OBJECTS) $(WATCH_SRC)
+        $(SPICY) -r $@ $(SRC_DIR)/spec \
+                --as_command="$(SDK_BIN)/mips32-elf-as" \
+                --cpp_command="$(SDK_BIN)/mips32-elf-gcc" \
+                --ld_command="$(SDK_BIN)/mips32-elf-ld" \
+                --objcopy_command="$(SDK_BIN)/mips32-elf-objcopy"
+        $(MAKEMASK) $(BIN)
+
+# Test the output .n64 in an emulator.
+run: $(BIN)
+        # TODO: Test roms with MAME or cen64 instead of mupen64 for better accuracy.
+        mupen64plus $(BIN)
+
+# Remove build directory.
+clean:
+        rm -rf $(BUILD_DIR)
+
+.PHONY: main run clean
+
+# Inference rules.
+$(BUILD_DIR)/%.o: $(SRC_DIR)/%.c
+        mkdir -p $(BUILD_DIR)
+        $(CC) $(CFLAGS) $< -o $@