diff options
Diffstat (limited to 'lume-legacy/Makefile')
| -rw-r--r-- | lume-legacy/Makefile | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/lume-legacy/Makefile b/lume-legacy/Makefile new file mode 100644 index 0000000..0722f8c --- /dev/null +++ b/lume-legacy/Makefile @@ -0,0 +1,141 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (C) 2026 Richard Qin + +# Try to find a suitable RISC-V toolchain prefix +ifndef TOOLCHAIN_PREFIX + TOOLCHAIN_PREFIX := $(shell \ + if command -v riscv64-linux-gnu-gcc >/dev/null 2>&1; then \ + echo riscv64-linux-gnu-; \ + elif command -v riscv64-unknown-gnu-gcc >/dev/null 2>&1; then \ + echo riscv64-unknown-gnu-; \ + elif command -v riscv64-unknown-linux-gnu-gcc >/dev/null 2>&1; then \ + echo riscv64-unknown-linux-gnu-; \ + elif command -v riscv64-unknown-elf-gcc >/dev/null 2>&1; then \ + echo riscv64-unknown-elf-; \ + else \ + echo riscv64-linux-gnu-; \ + fi) +endif + +CC := $(TOOLCHAIN_PREFIX)gcc +CXX := $(TOOLCHAIN_PREFIX)g++ +LD := $(TOOLCHAIN_PREFIX)ld +OBJCOPY := $(TOOLCHAIN_PREFIX)objcopy +OBJDUMP := $(TOOLCHAIN_PREFIX)objdump + +BUILD_DIR := build +SRC_DIR := src + +CFLAGS := -Wall -Wextra -O2 -g -ffreestanding -nostdlib -mcmodel=medany -Iinclude +CXXFLAGS := $(CFLAGS) -fno-exceptions -fno-rtti -fno-use-cxa-atexit +LINKER_SCRIPT := linker.ld + +USER_LD := $(SRC_DIR)/user/user.ld +ULIB_OBJS := $(BUILD_DIR)/user/entry.o \ + $(BUILD_DIR)/user/usys.o \ + $(BUILD_DIR)/ulib/stdio.o \ + $(BUILD_DIR)/ulib/stdlib.o \ + $(BUILD_DIR)/ulib/string.o \ + $(BUILD_DIR)/ulib/cxx.o \ + $(BUILD_DIR)/ulib/iostream.o \ + $(BUILD_DIR)/ulib/syscalls.o + +INITCODE_BIN := $(BUILD_DIR)/user/initcode + + +USER_SRCS := $(wildcard $(SRC_DIR)/user/*.cc) +UPROGS := $(patsubst $(SRC_DIR)/user/%.cc, $(BUILD_DIR)/user/%, $(USER_SRCS)) + +SRCS_S := $(shell find $(SRC_DIR) -name "*.S" -not -path "$(SRC_DIR)/user/*" -not -path "$(SRC_DIR)/ulib/*") +SRCS_CXX := $(shell find $(SRC_DIR) -name "*.cc" -not -path "$(SRC_DIR)/user/*" -not -path "$(SRC_DIR)/ulib/*") +OBJS := $(SRCS_S:%.S=$(BUILD_DIR)/%.o) $(SRCS_CXX:%.cc=$(BUILD_DIR)/%.o) + +TARGET := $(BUILD_DIR)/kernel.elf + +QEMUOPTS = -drive file=fs.img,if=none,format=raw,id=x0 +QEMUOPTS += -device virtio-blk-device,drive=x0 -global virtio-mmio.force-legacy=false + +.PHONY: all clean run debug + +all: $(TARGET) $(INITCODE_BIN) $(UPROGS) fs.img + + +$(BUILD_DIR)/ulib/%.o: $(SRC_DIR)/ulib/%.c + @mkdir -p $(dir $@) + @echo " ULIB_C $<" + @$(CC) $(CFLAGS) -c $< -o $@ + +$(BUILD_DIR)/ulib/%.o: $(SRC_DIR)/ulib/%.cc + @mkdir -p $(dir $@) + @echo " ULIB_CC $<" + @$(CXX) $(CXXFLAGS) -c $< -o $@ + +$(BUILD_DIR)/ulib/%.o: $(SRC_DIR)/ulib/%.cpp + @mkdir -p $(dir $@) + @echo " ULIB_CPP $<" + @$(CXX) $(CXXFLAGS) -c $< -o $@ + +$(BUILD_DIR)/user/%.o: $(SRC_DIR)/user/%.cc + @mkdir -p $(dir $@) + @echo " USER_CC $<" + @$(CXX) $(CXXFLAGS) -c $< -o $@ + +$(BUILD_DIR)/user/%.o: $(SRC_DIR)/user/%.S + @mkdir -p $(dir $@) + @echo " USER_AS $<" + @$(CC) $(CFLAGS) -c $< -o $@ + +$(INITCODE_BIN): $(BUILD_DIR)/user/init.o $(ULIB_OBJS) $(USER_LD) + @echo " U_LD $@" + @$(LD) -T $(USER_LD) -o $@.out $(BUILD_DIR)/user/init.o $(ULIB_OBJS) + @$(OBJCOPY) -S -O binary $@.out $@ + @$(OBJDUMP) -S $@.out > $@.asm + + +$(BUILD_DIR)/user/%: $(BUILD_DIR)/user/%.o $(ULIB_OBJS) $(USER_LD) + @echo " USER_LD $@" + @$(LD) -T $(USER_LD) -o $@ $< $(ULIB_OBJS) + @$(OBJDUMP) -S $@ > $@.asm + @$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $@.sym + + +$(TARGET): $(OBJS) $(LINKER_SCRIPT) + @echo " K_LD $@" + @$(LD) -T $(LINKER_SCRIPT) -o $@ $(OBJS) + @echo " K_ASM $@.asm" + @$(OBJDUMP) -S $@ > $@.asm + @$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $@.sym + +$(BUILD_DIR)/src/kernel/initcode.o: $(SRC_DIR)/kernel/initcode.S $(INITCODE_BIN) + @mkdir -p $(dir $@) + @echo " AS_INC $<" + @$(CC) $(CFLAGS) -c $< -o $@ + +$(BUILD_DIR)/%.o: %.S + @mkdir -p $(dir $@) + @echo " K_AS $<" + @$(CC) $(CFLAGS) -c $< -o $@ + +$(BUILD_DIR)/%.o: %.cc + @mkdir -p $(dir $@) + @echo " K_CXX $<" + @$(CXX) $(CXXFLAGS) -c $< -o $@ + +fs.img: $(UPROGS) + @echo " IMG Generating fs.img (FAT32)" + @dd if=/dev/zero of=fs.img bs=1M count=32 2>/dev/null + @mkfs.vfat -F 32 fs.img >/dev/null + $(foreach prog,$(UPROGS),mcopy -i fs.img $(prog) ::/$(notdir $(prog));) + +run: $(TARGET) fs.img + @echo " QEMU Running..." + @qemu-system-riscv64 -machine virt -nographic \ + -kernel $(TARGET) -m 128M $(QEMUOPTS) + +debug: $(TARGET) fs.img + @echo " QEMU (DEBUG) Waiting for GDB..." + @qemu-system-riscv64 -machine virt -nographic \ + -kernel $(TARGET) -m 128M -s -S $(QEMUOPTS) + +clean: + rm -rf $(BUILD_DIR) fs.img
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