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))) # unwind/backtrace related UNWIND_ENABLE ?= yes CFLAGS_UNWIND = LDFLAGS_UNWIND = RUSTFLAGS_UNWIND = ifeq ($(UNWIND_ENABLE), yes) CFLAGS_UNWIND = -funwind-tables ifeq ($(ARCH), x86_64) LDFLAGS_UNWIND = --eh-frame-hdr RUSTFLAGS_UNWIND = -Cforce-unwind-tables -Clink-arg=-Wl,eh_frame.ld endif endif RUSTFLAGS = $(RUSTFLAGS_UNWIND) CFLAGS = $(GLOBAL_CFLAGS) -fno-pie $(CFLAGS_UNWIND) -I $(shell pwd) -I $(shell pwd)/include ifeq ($(ARCH), x86_64) CFLAGS += -I $(shell pwd)/arch/x86_64/include else ifeq ($(ARCH), riscv64) CFLAGS += -I $(shell pwd)/arch/riscv64/include -I $(shell pwd)/arch/riscv64/ endif export ASFLAGS := --64 LD_LIST := "" kernel_subdirs := common driver debug syscall libs kernel_rust: RUSTFLAGS="$(RUSTFLAGS)" cargo +nightly-2023-08-15 $(CARGO_ZBUILD) build --release --target $(TARGET_JSON) all: kernel # if x86_64 ifeq ($(ARCH), x86_64) $(MAKE) __link_x86_64_kernel else ifeq ($(ARCH), riscv64) $(MAKE) __link_riscv64_kernel endif @echo "Kernel Build Done." ECHO: @echo "$@" $(kernel_subdirs): ECHO $(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)" kernel_root_path="$(shell pwd)" kernel: $(kernel_subdirs) kernel_rust __link_riscv64_kernel: @echo "Linking kernel..." $(LD) -b elf64-littleriscv -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/riscv64gc-unknown-none-elf/release/libdragonos_kernel.a -T arch/riscv64/link.ld --no-relax $(OBJCOPY) -I elf64-littleriscv -O elf64-littleriscv -R ".eh_frame" kernel ../../bin/kernel/kernel.elf @rm kernel $(MAKE) __dragon_stub PAYLOAD_ELF="$(shell pwd)/../../bin/kernel/kernel.elf" __link_x86_64_kernel: @echo "Linking kernel..." $(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a -T arch/x86_64/link.lds --no-relax # 生成kallsyms current_dir=$(pwd) @dbg='debug';for x in $$dbg; do \ cd $$x;\ $(MAKE) generate_kallsyms kernel_root_path="$(shell pwd)"||exit 1;\ cd ..;\ done # 重新链接 @echo "Re-Linking kernel..." @echo $(shell find . -name "*.o") $(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a ./debug/kallsyms.o -T arch/x86_64/link.lds --no-relax @echo "Generating kernel ELF file..." # 生成内核文件 ifeq ($(UNWIND_ENABLE), yes) $(OBJCOPY) -I elf64-x86-64 -O elf64-x86-64 kernel ../../bin/kernel/kernel.elf else $(OBJCOPY) -I elf64-x86-64 -O elf64-x86-64 -R ".eh_frame" kernel ../../bin/kernel/kernel.elf endif rm kernel __dragon_stub: @echo "Linking dragon_stub..." @mkdir -p $(ROOT_PATH)/bin/sysroot PAYLOAD_ELF=$(PAYLOAD_ELF) TARGET_SYSROOT=$(ROOT_PATH)/bin/sysroot $(MAKE) -C $(ROOT_PATH)/kernel/submodules/DragonStub install -j $(NPROCS) 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