feat: Vfs and Ext2 support. Code style/attribute improvements

Added VFS and Ext2 support.
Optimized attributes of methods to improve code highlighting.
Printf attribute, malloc attribute, etc.

include/sys/stat.h

@@ -0,0 +1,50 @@
+//
+// Created by rick on 06-10-21.
+//
+
+#ifndef NEW_KERNEL_STAT_H
+#define NEW_KERNEL_STAT_H
+
+#include <time.h>
+
+// https://man7.org/linux/man-pages/man2/stat.2.html
+
+typedef uint32_t dev_t;
+typedef uint32_t ino_t;
+typedef uint32_t mode_t;
+typedef uint32_t nlink_t;
+typedef uint32_t uid_t;
+typedef uint32_t gid_t;
+typedef size_t off_t;
+typedef size_t blksize_t;
+typedef uint32_t blkcnt_t;
+
+
+struct stat {
+    dev_t st_dev;         /* ID of device containing file */
+    ino_t st_ino;         /* Inode number */
+    mode_t st_mode;        /* File type and mode */
+    nlink_t st_nlink;       /* Number of hard links */
+    uid_t st_uid;         /* User ID of owner */
+    gid_t st_gid;         /* Group ID of owner */
+    dev_t st_rdev;        /* Device ID (if special file) */
+    off_t st_size;        /* Total size, in bytes */
+    blksize_t st_blksize;     /* Block size for filesystem I/O */
+    blkcnt_t st_blocks;      /* Number of 512B blocks allocated */
+
+    /* Since Linux 2.6, the kernel supports nanosecond
+       precision for the following timestamp fields.
+       For the details before Linux 2.6, see NOTES. */
+
+    struct timespec st_atim;  /* Time of last access */
+    struct timespec st_mtim;  /* Time of last modification */
+    struct timespec st_ctim;  /* Time of last status change */
+
+#define st_atime st_atim.tv_sec      /* Backward compatibility */
+#define st_mtime st_mtim.tv_sec
+#define st_ctime st_ctim.tv_sec
+};
+
+typedef struct stat stat_t;
+
+#endif //NEW_KERNEL_STAT_H