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# Examples:
# make run Run in debug
# make justrun Run in debug without build
# make run int=1 Run with interrupt info by QEMU
# make run mode=release Run in release
# make run LOG=error Run with log level: error
# LOG = off | error | warn | info | debug | trace
# make doc Generate docs
# make asm Open the deassemble file of the last build
# make clean Clean
arch ?= riscv32
kernel := build/$(arch)/kernel.bin
iso := build/$(arch)/os.iso
target ?= $(arch)-blog_os
mode ?= debug
rust_lib := target/$(target)/$(mode)/ucore
boot_src := src/arch/$(arch)/boot
linker_script := $(boot_src)/linker.ld
grub_cfg := $(boot_src)/grub.cfg
assembly_source_files := $(wildcard $(boot_src)/*.asm)
assembly_object_files := $(patsubst $(boot_src)/%.asm, \
build/$(arch)/boot/%.o, $(assembly_source_files))
user_bin_path := ../user/target/$(arch)-ucore/debug
user_bins := $(patsubst $(user_bin_path)/%.d, $(user_bin_path)/%, $(wildcard $(user_bin_path)/*.d))
user_obj := build/$(arch)/user.o
SFSIMG := ../user/ucore32.img
ifeq ($(arch), x86_64)
qemu_opts := -cdrom $(iso) -smp 4 -serial mon:stdio -drive file=$(SFSIMG),media=disk,cache=writeback -device isa-debug-exit
endif
ifeq ($(arch), riscv32)
qemu_opts := -machine virt -kernel $(iso) -nographic
endif
features := use_apic
LOG ?= debug
# Link user binaries at ../user
ifdef link_user
features := $(features) link_user_program
assembly_object_files := $(assembly_object_files) $(user_obj)
endif
ifdef d
qemu_opts := $(qemu_opts) -d $(d)
endif
build_args := --target $(target).json --features "$(features)"
ifeq ($(mode), release)
build_args := $(build_args) --release
endif
ifeq ($(arch), x86_64)
build_args := $(build_args) --lib
endif
ifeq ($(OS),Windows_NT)
uname := Win32
else
uname := $(shell uname)
endif
ifeq ($(uname), Darwin)
prefix := x86_64-elf-
endif
ifeq ($(arch), riscv32)
prefix := riscv64-unknown-elf-
endif
ld := $(prefix)ld
objdump := $(prefix)objdump
cc := $(prefix)gcc
as := $(prefix)as
.PHONY: all clean run iso build asm doc justrun kernel
all: $(kernel)
clean:
@rm -r build target
doc:
@cargo rustdoc -- --document-private-items
run: $(iso) justrun
justrun:
@qemu-system-$(arch) $(qemu_opts) || [ $$? -eq 11 ] # run qemu and assert it exit 11
debug: $(iso)
@qemu-system-$(arch) $(qemu_opts) -s -S &
iso: $(iso)
build: iso
asm:
@$(objdump) -dS $(kernel) | less
elf-h:
@$(objdump) -h $(kernel)
build/x86_64/os.iso: $(kernel) $(grub_cfg)
@mkdir -p build/isofiles/boot/grub
@cp $(kernel) build/isofiles/boot/kernel.bin
@cp $(grub_cfg) build/isofiles/boot/grub
@grub-mkrescue -o $(iso) build/isofiles 2> /dev/null
@rm -r build/isofiles
build/riscv32/os.iso: kernel
@cp $(rust_lib) $@
$(kernel): kernel $(assembly_object_files) $(linker_script)
@$(ld) -n --gc-sections -T $(linker_script) -o $(kernel) \
$(assembly_object_files) target/x86_64-blog_os/$(mode)/libucore.a
kernel:
@CC=$(cc) cargo xbuild $(build_args)
# compile assembly files
build/x86_64/boot/%.o: $(boot_src)/%.asm
@mkdir -p $(shell dirname $@)
@nasm -felf64 $< -o $@
# make user.o from binary files
$(user_obj): $(user_bins)
@cd $(user_bin_path) && \
$(ld) -o $(abspath $@) $(patsubst %, -b binary %, $(notdir $(user_bins)))