mirror of
https://github.com/DragonOS-Community/DragonOS.git
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114 lines
3.2 KiB
Makefile
114 lines
3.2 KiB
Makefile
SUBDIR_ROOTS := .
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DIRS := . $(shell find $(SUBDIR_ROOTS) -type d)
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GARBAGE_PATTERNS := *.o *.s~ *.s *.S~ *.c~ *.h~ kernel
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GARBAGE := $(foreach DIR,$(DIRS),$(addprefix $(DIR)/,$(GARBAGE_PATTERNS)))
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DIR_LIB=libs
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lib_patterns := *.a
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LIB_FILES := $(foreach DIR,$(DIR_LIB),$(addprefix $(DIR)/,$(lib_patterns)))
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# unwind/backtrace related
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UNWIND_ENABLE ?= yes
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CFLAGS_UNWIND =
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LDFLAGS_UNWIND =
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RUSTFLAGS_UNWIND =
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ifeq ($(UNWIND_ENABLE), yes)
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CFLAGS_UNWIND = -funwind-tables
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ifeq ($(ARCH), x86_64)
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LDFLAGS_UNWIND = --eh-frame-hdr
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RUSTFLAGS_UNWIND = -Cforce-unwind-tables -Clink-arg=-Wl,eh_frame.ld
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endif
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endif
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RUSTFLAGS += $(RUSTFLAGS_UNWIND)
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CFLAGS = $(GLOBAL_CFLAGS) -fno-pie $(CFLAGS_UNWIND) -I $(shell pwd) -I $(shell pwd)/include
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ifeq ($(ARCH), x86_64)
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CFLAGS += -I $(shell pwd)/arch/x86_64/include
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else ifeq ($(ARCH), riscv64)
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CFLAGS += -I $(shell pwd)/arch/riscv64/include -I $(shell pwd)/arch/riscv64/
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endif
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export ASFLAGS := --64
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LD_LIST := ""
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kernel_subdirs := common driver debug syscall libs
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kernel_rust:
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RUSTFLAGS="$(RUSTFLAGS)" cargo +nightly-2024-07-23 $(CARGO_ZBUILD) build --release --target $(TARGET_JSON)
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all: kernel
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# if x86_64
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ifeq ($(ARCH), x86_64)
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$(MAKE) __link_x86_64_kernel
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else ifeq ($(ARCH), riscv64)
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$(MAKE) __link_riscv64_kernel
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endif
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@echo "Kernel Build Done."
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ECHO:
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@echo "$@"
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$(kernel_subdirs): ECHO
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$(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)" kernel_root_path="$(shell pwd)"
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kernel: $(kernel_subdirs) kernel_rust
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__link_riscv64_kernel:
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@echo "Linking kernel..."
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$(LD) -b elf64-littleriscv -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/riscv64gc-unknown-none-elf/release/libdragonos_kernel.a -T arch/riscv64/link.ld --no-relax
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$(OBJCOPY) -I elf64-littleriscv -O elf64-littleriscv -R ".eh_frame" kernel ../../bin/kernel/kernel.elf
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@rm kernel
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$(MAKE) __dragon_stub PAYLOAD_ELF="$(shell pwd)/../../bin/kernel/kernel.elf"
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__link_x86_64_kernel:
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@echo "Linking kernel..."
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$(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a -T arch/x86_64/link.lds --no-relax
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# 生成kallsyms
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current_dir=$(pwd)
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@dbg='debug';for x in $$dbg; do \
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cd $$x;\
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$(MAKE) generate_kallsyms kernel_root_path="$(shell pwd)"||exit 1;\
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cd ..;\
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done
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# 重新链接
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@echo "Re-Linking kernel..."
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@echo $(shell find . -name "*.o")
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$(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a ./debug/kallsyms.o -T arch/x86_64/link.lds --no-relax
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@echo "Generating kernel ELF file..."
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# 生成内核文件
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ifeq ($(UNWIND_ENABLE), yes)
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$(OBJCOPY) -I elf64-x86-64 -O elf64-x86-64 kernel ../../bin/kernel/kernel.elf
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else
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$(OBJCOPY) -I elf64-x86-64 -O elf64-x86-64 -R ".eh_frame" kernel ../../bin/kernel/kernel.elf
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endif
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rm kernel
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__dragon_stub:
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@echo "Linking dragon_stub..."
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@mkdir -p $(ROOT_PATH)/bin/sysroot
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PAYLOAD_ELF=$(PAYLOAD_ELF) TARGET_SYSROOT=$(ROOT_PATH)/bin/sysroot $(MAKE) -C $(ROOT_PATH)/kernel/submodules/DragonStub install -j $(NPROCS)
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clean:
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@cargo clean
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rm -rf $(GARBAGE)
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@list='$(kernel_subdirs)'; for subdir in $$list; do \
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echo "Clean in dir: $$subdir";\
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cd $$subdir && $(MAKE) clean;\
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cd .. ;\
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done
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