SUBDIR_ROOTS := . DIRS := . $(shell find $(SUBDIR_ROOTS) -type d) GARBAGE_PATTERNS := *.o *.s~ *.s *.S~ *.c~ *.h~ kernel GARBAGE := $(foreach DIR,$(DIRS),$(addprefix $(DIR)/,$(GARBAGE_PATTERNS))) DIR_LIB=libs lib_patterns := *.a LIB_FILES := $(foreach DIR,$(DIR_LIB),$(addprefix $(DIR)/,$(lib_patterns))) # 控制操作系统使用的中断控制器 _INTR_8259A_ _INTR_APIC_ PIC := _INTR_APIC_ CFLAGS = $(GLOBAL_CFLAGS) -D $(PIC) -I $(shell pwd) -I $(shell pwd)/include -I $(shell pwd)/arch/x86_64/include export ASFLAGS := --64 LD_LIST := head.o kernel_subdirs := common driver process debug filesystem time arch exception mm smp sched syscall ktest libs ipc head.o: head.S $(CC) -E head.S > _head.s # 预处理 as $(ASFLAGS) -o head.o _head.s main.o: main.c # -fno-builtin: 不使用C语言内建函数 # The -m64 option sets int to 32bits and long and pointer to 64 bits and generates code for AMD’s x86-64 architecture. $(CC) $(CFLAGS) -c main.c -o main.o kernel_rust: rustup default nightly cargo +nightly build --release --target ./arch/x86_64/x86_64-unknown-none.json all: kernel @echo "Linking kernel..." ld -b elf64-x86-64 -z muldefs -o kernel head.o main.o $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a -T link.lds # 生成kallsyms current_dir=$(pwd) @dbg='debug';for x in $$dbg; do \ cd $$x;\ $(MAKE) generate_kallsyms kernel_root_path="$(shell pwd)";\ cd ..;\ if [ "$$?" != "0" ]; then\ exit $$?;\ fi;\ done # 重新链接 @echo "Re-Linking kernel..." @echo $(shell find . -name "*.o") ld -b elf64-x86-64 -z muldefs -o kernel head.o main.o $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a ./debug/kallsyms.o -T link.lds @echo "Generating kernel ELF file..." # 生成内核文件 objcopy -I elf64-x86-64 -O elf64-x86-64 -R ".comment" -R ".eh_frame" kernel ../../bin/kernel/kernel.elf @echo "Kernel Build Done." ECHO: @echo "$@" $(kernel_subdirs): ECHO $(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)" PIC="$(PIC)" kernel_root_path="$(shell pwd)" kernel: head.o main.o $(kernel_subdirs) kernel_rust clean: cargo clean rm -rf $(GARBAGE) @list='$(kernel_subdirs)'; for subdir in $$list; do \ echo "Clean in dir: $$subdir";\ cd $$subdir && $(MAKE) clean;\ cd .. ;\ done