diff --git a/include/linux/x86/syscall.h b/include/linux/x86/syscall.h
index eb776be0..620a8b7d 100644
--- a/include/linux/x86/syscall.h
+++ b/include/linux/x86/syscall.h
@@ -83,4 +83,8 @@
 // make+POSIX
 #define SYS_sigprocmask 0x7e
 
+// tar
+#define SYS_symlink   0x53
+#define SYS_readlink  0x55
+
 #endif // __MES_LINUX_X86_SYSCALL_H
diff --git a/include/linux/x86_64/syscall.h b/include/linux/x86_64/syscall.h
index 269546e2..66022289 100644
--- a/include/linux/x86_64/syscall.h
+++ b/include/linux/x86_64/syscall.h
@@ -80,4 +80,8 @@
 // make+POSIX
 #define SYS_rt_sigprocmask 0x0e
 
+// tar
+#define SYS_symlink   0x58
+#define SYS_readlink  0x59
+
 #endif // __MES_LINUX_X86_64_SYSCALL_H
diff --git a/include/unistd.h b/include/unistd.h
index a5c840f8..82e51ff5 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -74,15 +74,17 @@ int setuid (uid_t newuid);
 uid_t geteuid (void);
 gid_t getegid (void);
 int isatty (int fd);
-int link (char const *oldname, char const *newname);
+int link (char const *old_name, char const *new_name);
 off_t lseek (int fd, off_t offset, int whence);
 ssize_t read (int fd, void *buffer, size_t size);
+ssize_t readlink (char const *file_name, char *buffer, size_t size);
 #if __SBRK_CHAR_PTRDIFF
 /* xmalloc in binutils <= 2.10.1 uses this old prototype */
 char * sbrk (ptrdiff_t delta);
 #else
 void * sbrk (intptr_t delta);
 #endif
+int symlink (char const *old_name, char const *new_name);
 int unlink (char const *file_name);
 ssize_t write (int filedes, void const *buffer, size_t size);
 pid_t getpid (void);
diff --git a/lib/linux/gnu.c b/lib/linux/gnu.c
index 325eb247..1e9553e3 100644
--- a/lib/linux/gnu.c
+++ b/lib/linux/gnu.c
@@ -197,3 +197,16 @@ sigprocmask (int how, sigset_t const *set, sigset_t *oldset)
   return _sys_call3 (SYS_rt_sigprocmask, (long)how, (long)set, (long)oldset);
 #endif
 }
+
+// tar
+int
+symlink (char const *old_name, char const *new_name)
+{
+  return _sys_call2 (SYS_symlink, (long)old_name, (long)new_name);
+}
+
+ssize_t
+readlink (char const *file_name, char *buffer, size_t size)
+{
+  return _sys_call3 (SYS_readlink, (long)file_name, (long)buffer, (long)size);
+}