新增rust ffi (#77)

* 引入cargo

* 取消对Cargo.lock的跟踪

* 解决vscode报错问题

* new: rust的代码能够调用c语言的printk_color

* 1、将原本run.sh的工作拆解，变为几个不同的make命令
2、在docker镜像中编译rust

* 更改workflow

* update workflow

* new: 解决workflow无法通过编译的问题

kernel/src/Makefile

@@ -0,0 +1,79 @@
+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=lib
+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)
+
+export ASFLAGS := --64
+
+LD_LIST := head.o
+
+
+kernel_subdirs := common driver process debug filesystem time arch exception mm smp sched syscall ktest lib 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
+
+
+all: kernel
+	rustup default nightly
+	cargo +nightly build --release --target ./arch/x86_64/x86_64-unknown-none.json
+	@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..."
+	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)
+	
+
+
+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