BuildSystem: Move all userpace libraries under the userspace directory

As the number of libraries is increasing, root directory starts to
expand. This adds better organization for libraries

userspace/libraries/LibC/include/sys/stat.h

@@ -0,0 +1,109 @@
+#ifndef _SYS_STAT_H
+#define _SYS_STAT_H 1
+
+// https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_stat.h.html
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#define __need_blkcnt_t
+#define __need_blksize_t
+#define __need_dev_t
+#define __need_ino_t
+#define __need_mode_t
+#define __need_nlink_t
+#define __need_uid_t
+#define __need_gid_t
+#define __need_off_t
+#define __need_time_t
+#include <sys/types.h>
+
+#include <time.h>
+
+struct stat
+{
+	dev_t			st_dev;		/* Device ID of device containing file. */
+	ino_t			st_ino;		/* File serial number. */
+	mode_t			st_mode;	/* Mode of file (see below). */
+	nlink_t			st_nlink;	/* Number of hard links to the file. */
+	uid_t			st_uid;		/* User ID of file. */
+	gid_t			st_gid;		/* Group ID of file. */
+	dev_t			st_rdev;	/* Device ID (if file is character or block special). */
+	off_t			st_size;	/* For regular files, the file size in bytes. For symbolic links, the length in bytes of the pathname contained in the symbolic link. For a shared memory object, the length in bytes. For a typed memory object, the length in bytes. For other file types, the use of this field is unspecified. */
+	struct timespec	st_atim;	/* Last data access timestamp. */
+	struct timespec	st_mtim;	/* Last data modification timestamp. */
+	struct timespec	st_ctim;	/* Last file status change timestamp. */
+	blksize_t		st_blksize;	/* A file system-specific preferred I/O block size for this object. In some file system types, this may vary from file to file. */
+	blkcnt_t		st_blocks;	/* Number of blocks allocated for this object. */
+};
+
+#define st_atime st_atim.tv_sec
+#define st_ctime st_ctim.tv_sec
+#define st_mtime st_mtim.tv_sec
+
+#define S_IRWXU		00700
+#define S_IRUSR		00400
+#define S_IWUSR		00200
+#define S_IXUSR		00100
+#define S_IRWXG		00070
+#define S_IRGRP		00040
+#define S_IWGRP		00020
+#define S_IXGRP		00010
+#define S_IRWXO		00007
+#define S_IROTH		00004
+#define S_IWOTH		00002
+#define S_IXOTH		00001
+#define S_ISUID		04000
+#define S_ISGID		02000
+#define S_ISVTX		01000
+
+#define S_IFIFO		0010000
+#define S_IFCHR		0020000
+#define S_IFDIR		0040000
+#define S_IFBLK		0060000
+#define S_IFREG		0100000
+#define S_IFLNK		0120000
+#define S_IFSOCK	0140000
+#define S_IFMASK	0170000
+#define S_IFMT		S_IFMASK
+
+#define S_ISBLK(mode)	((mode & S_IFMASK) == S_IFBLK)
+#define S_ISCHR(mode)	((mode & S_IFMASK) == S_IFCHR)
+#define S_ISDIR(mode)	((mode & S_IFMASK) == S_IFDIR)
+#define S_ISFIFO(mode)	((mode & S_IFMASK) == S_IFIFO)
+#define S_ISREG(mode)	((mode & S_IFMASK) == S_IFREG)
+#define S_ISLNK(mode)	((mode & S_IFMASK) == S_IFLNK)
+#define S_ISSOCK(mode)	((mode & S_IFMASK) == S_IFSOCK)
+
+// FIXME
+#if 0
+#define S_TYPEISMQ(buf)
+#define S_TYPEISSEM(buf)
+#define S_TYPEISSHM(buf)
+#define S_TYPEISTMO(buf)
+#endif
+
+#define UTIME_NOW	1000000001
+#define UTIME_OMIT	1000000002
+
+int		chmod(const char* path, mode_t mode);
+int		fchmod(int fildes, mode_t mode);
+int		fchmodat(int fd, const char* path, mode_t mode, int flag);
+int		fstat(int fildes, struct stat* buf);
+int		fstatat(int fd, const char* __restrict path, struct stat* __restrict buf, int flag);
+int		futimens(int fd, const struct timespec times[2]);
+int		lstat(const char* __restrict path, struct stat* __restrict buf);
+int		mkdir(const char* path, mode_t mode);
+int		mkdirat(int fd, const char* path, mode_t mode);
+int		mkfifo(const char* path, mode_t mode);
+int		mkfifoat(int fd, const char* path, mode_t mode);
+int		mknod(const char* path, mode_t mode, dev_t dev);
+int		mknodat(int fd, const char* path, mode_t mode, dev_t dev);
+int		stat(const char* __restrict path, struct stat* __restrict buf);
+mode_t	umask(mode_t cmask);
+int		utimensat(int fd, const char* path, const struct timespec times[2], int flag);
+
+__END_DECLS
+
+#endif