Makefile

# Building
TARGET := riscv64gc-unknown-none-elf
MODE := release
KERNEL_ELF := target/$(TARGET)/$(MODE)/kernel
KERNEL_BIN := $(KERNEL_ELF).bin
DISASM_TMP := target/$(TARGET)/$(MODE)/asm

# BOARD
BOARD ?= qemu
SBI ?= rustsbi
BOOTLOADER := bootloader/$(SBI)-$(BOARD).bin
K210_BOOTLOADER_SIZE := 131072

# KERNEL ENTRY
ifeq ($(BOARD), qemu)
	KERNEL_ENTRY_PA := 0x80200000
endif


# Binutils
OBJDUMP := rust-objdump --arch-name=riscv64
OBJCOPY := rust-objcopy --binary-architecture=riscv64

# Disassembly
DISASM ?= -x

build: $(KERNEL_BIN)


$(KERNEL_BIN): kernel
	@$(OBJCOPY) $(KERNEL_ELF) --strip-all -O binary $@

kernel:
	@echo Platform: $(BOARD)
	@cp script/linker-$(BOARD).ld script/linker.ld
	@cargo rustc --release -p kernel -- -Clink-arg=-Tscript/linker.ld
	@rm script/linker.ld

clean:
	@cargo clean

disasm: kernel
	@$(OBJDUMP) $(DISASM) $(KERNEL_ELF) | less

disasm-vim: kernel
	@$(OBJDUMP) $(DISASM) $(KERNEL_ELF) > $(DISASM_TMP)
	@vim $(DISASM_TMP)
	@rm $(DISASM_TMP)

run: run-inner

	

run-inner: build
ifeq ($(BOARD),qemu)
	@qemu-system-riscv64 \
		-machine virt \
		-nographic \
		-bios $(BOOTLOADER) \
		-device loader,file=$(KERNEL_BIN),addr=$(KERNEL_ENTRY_PA)
endif

debug: build
	@qemu-system-riscv64 -machine virt -nographic -bios $(BOOTLOADER) -device loader,file=$(KERNEL_BIN),addr=$(KERNEL_ENTRY_PA) -gdb tcp::2222 -S
	
gdb: 
	 gdb-multiarch -ex 'file $(KERNEL_ELF)' -ex 'set arch riscv:rv64' -ex 'target remote localhost:2222'

.PHONY: build kernel clean disasm disasm-vim run-inner switch-check