ARCH ?= riscv64

ifeq ($(ARCH), riscv64)
	BUILD_TARGET := riscv64imac-unknown-none-elf
	LINKER_LDS   := kernel/src/arch/riscv/linker64.ld
else
	$(error Invalid TARGET: $(ARCH))
endif

RUSTFLAGS += -Crelocation-model=static
RUSTFLAGS += -Ccode-model=medium
RUSTFLAGS += -Ctarget-feature=+relax
RUSTFLAGS += -Cforce-frame-pointers=yes
RUSTFLAGS += -Clink-arg=-T$(LINKER_LDS)

CARGO_TARGET_ARGS := --target=$(BUILD_TARGET)

CARGO_BUILD_ARGS += -Zbuild-std=core,compiler_builtins,alloc
CARGO_BUILD_ARGS += -Zbuild-std-features=compiler-builtins-mem
CARGO_BUILD_ARGS += $(CARGO_TARGET_ARGS)

kernel:
	env RUSTFLAGS="$(RUSTFLAGS)" cargo build --bin kernel $(CARGO_BUILD_ARGS)

clippy:
	cargo clippy -p allocator
	cargo clippy -p utils
	cargo clippy --no-deps $(CARGO_TARGET_ARGS) --manifest-path=kernel/Cargo.toml

test:
	cargo test -p allocator
	cargo test -p utils
	env RUSTFLAGS="$(RUSTFLAGS)" cargo test $(CARGO_TARGET_ARGS) --bin=kernel

clean:
	cargo clean

qemu: kernel
	qemu-system-$(ARCH) -nographic -machine virt -serial mon:stdio -smp 1 -kernel target/$(BUILD_TARGET)/debug/kernel

qemu-gdb: kernel
	qemu-system-$(ARCH) -nographic -machine virt -serial mon:stdio -smp 1 -kernel target/$(BUILD_TARGET)/debug/kernel -s -S

.PHONY: kernel clippy test clean qemu