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

tools/write_disk_image.sh

@@ -0,0 +1,79 @@
+ARCH="x86_64"
+# 内核映像
+root_folder=$(dirname $(pwd))
+kernel="${root_folder}/bin/kernel/kernel.elf"
+boot_folder="${root_folder}/bin/disk_mount/boot"
+
+echo "开始写入磁盘镜像..."
+
+
+# toolchain
+OS=`uname -s`
+if [ "${OS}" == "Linux" ]; then
+    GRUB_PATH="$(dirname $(which grub-file))"
+elif [ "${OS}" == "Darwin" ]; then
+    GRUB_PATH="${root_folder}/tools/grub-2.06/build/grub/bin"
+fi
+export PATH="${GRUB_PATH}:$PATH"
+
+# ==============检查文件是否齐全================
+
+bins[0]=${kernel}
+
+for file in ${bins[*]};do
+if [ ! -x $file ]; then
+echo "$file 不存在！"
+exit
+fi
+done
+
+# ===============文件检查完毕===================
+
+# 如果是 i386/x86_64，需要判断是否符合 multiboot2 标准
+if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then
+    if ${GRUB_PATH}/grub-file --is-x86-multiboot2 ${kernel}; then
+        echo Multiboot2 Confirmed!
+    else
+        echo NOT Multiboot2!
+        exit
+    fi
+fi
+
+# 拷贝程序到硬盘
+# 判断是否存在硬盘镜像文件，如果不存在，就创建一个(docker模式下，由于镜像中缺少qemu-img不会创建)
+if [ ! -f "${root_folder}/bin/disk.img" ]; then
+    echo "创建硬盘镜像文件..."
+    sudo bash ./create_hdd_image.sh
+fi
+
+mkdir -p ${root_folder}/bin/disk_mount
+bash mount_virt_disk.sh || exit 1
+mkdir -p ${boot_folder}/grub
+cp ${kernel} ${root_folder}/bin/disk_mount/boot
+# 拷贝用户程序到磁盘镜像
+mkdir -p ${root_folder}/bin/disk_mount/bin
+mkdir -p ${root_folder}/bin/disk_mount/dev
+
+cp -r ${root_folder}/bin/user/* ${root_folder}/bin/disk_mount/bin
+touch ${root_folder}/bin/disk_mount/dev/keyboard.dev
+
+# 设置 grub 相关数据
+if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then
+    
+    touch ${root_folder}/bin/disk_mount/boot/grub/grub.cfg
+cfg_content='set timeout=15
+    set default=0
+    menuentry "DragonOS" {
+    multiboot2 /boot/kernel.elf "KERNEL_ELF"
+}'
+echo "echo '${cfg_content}' >  ${boot_folder}/grub/grub.cfg" | sh
+fi
+
+# rm -rf ${iso_folder}
+LOOP_DEVICE=$(lsblk | grep disk_mount|sed 's/.*\(loop[0-9]*\)p1.*/\1/1g'|awk 'END{print $0}')
+echo $LOOP_DEVICE
+
+grub-install --target=i386-pc --boot-directory=${root_folder}/bin/disk_mount/boot/ /dev/$LOOP_DEVICE
+
+sync
+bash umount_virt_disk.sh