+ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size);
+int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags);
+ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size);
+int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size, int flags);