diff --git a/ppu/crt/crt1.c b/ppu/crt/crt1.c
index 6c3826ac..fdca7b25 100644
--- a/ppu/crt/crt1.c
+++ b/ppu/crt/crt1.c
@@ -14,6 +14,9 @@ extern int __librt_fstat_r(struct _reent *r,int fd,struct stat *st);
 extern int __librt_fstat64_r(struct _reent *r,int fd,struct stat *st);
 extern int __librt_stat_r(struct _reent *r,const char *path,struct stat *st);
 extern int __librt_stat64_r(struct _reent *r,const char *path,struct stat *st);
+extern int __librt_ftruncate_r(struct _reent *r,int fd,off_t len);
+extern int __librt_truncate_r(struct _reent *r,const char *path,off_t len);
+extern int __librt_fsync_r(struct _reent *r,int fd);
 extern _ssize_t __librt_read_r(struct _reent *r,int fd,void *ptr,size_t len);
 extern _ssize_t __librt_write_r(struct _reent *r,int fd,const void *ptr,size_t len);
 extern _off_t __librt_lseek_r(struct _reent *r,int fd,_off_t pos,int dir);
@@ -32,6 +35,7 @@ extern long int __librt_telldir_r(struct _reent *r,DIR *dirp);
 extern void __librt_rewinddir_r(struct _reent *r,DIR *dirp);
 extern void __librt_seekdir_r(struct _reent *r,DIR *dirp,long int loc);
 extern int __librt_rmdir_r(struct _reent *r,const char *dirname);
+extern int __librt_link_r(struct _reent *r,const char *old,const char *new);
 extern int __librt_unlink_r(struct _reent *r,const char *path);
 extern int __librt_access_r(struct _reent *r,const char *path,int amode);
 
@@ -65,6 +69,9 @@ static void __syscalls_init(void)
 	__syscalls.fstat64_r = __librt_fstat64_r;
 	__syscalls.stat_r = __librt_stat_r;
 	__syscalls.stat64_r = __librt_stat64_r;
+	__syscalls.ftruncate_r = __librt_ftruncate_r;
+	__syscalls.truncate_r = __librt_truncate_r;
+	__syscalls.fsync_r = __librt_fsync_r;
 	__syscalls.chmod_r = __librt_chmod_r;
 	__syscalls.rename_r = __librt_rename_r;
 	__syscalls.isatty_r = __librt_isatty_r;
@@ -78,6 +85,7 @@ static void __syscalls_init(void)
 	__syscalls.rewinddir_r = __librt_rewinddir_r;
 	__syscalls.seekdir_r = __librt_seekdir_r;
 	__syscalls.rmdir_r = __librt_rmdir_r;
+	__syscalls.link_r = __librt_link_r;
 	__syscalls.unlink_r = __librt_unlink_r;
 	__syscalls.access_r = __librt_access_r;
 
diff --git a/ppu/librt/Makefile b/ppu/librt/Makefile
index ea5892b0..f1c73525 100644
--- a/ppu/librt/Makefile
+++ b/ppu/librt/Makefile
@@ -45,7 +45,8 @@ VPATH :=	$(BASEDIR)
 OBJS		:= \
 			sbrk.o exit.o close.o lseek.o read.o open.o sleep.o write.o fstat.o \
 			socket.o lock.o dirent.o mkdir.o times.o umask.o lv2errno.o heap.o \
-			chmod.o rename.o rmdir.o isatty.o gettod.o settod.o unlink.o access.o
+			chmod.o rename.o rmdir.o isatty.o gettod.o settod.o unlink.o access.o \
+			link.o truncate.o fsync.o
 
 all: ppu
 
diff --git a/ppu/librt/fsync.c b/ppu/librt/fsync.c
new file mode 100644
index 00000000..d749afc7
--- /dev/null
+++ b/ppu/librt/fsync.c
@@ -0,0 +1,17 @@
+#include <_ansi.h>
+#include <_syslist.h>
+#include <sys/reent.h>
+#include <sys/errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/lv2errno.h>
+
+#include <sys/file.h>
+
+int
+_DEFUN(__librt_fsync_r,(ptr,fd),
+	   struct _reent *ptr _AND
+		   int fd)
+{
+	return lv2errno_r(ptr,sysLv2FsFsync(fd));
+}
diff --git a/ppu/librt/link.c b/ppu/librt/link.c
new file mode 100644
index 00000000..44f30d93
--- /dev/null
+++ b/ppu/librt/link.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <_ansi.h>
+#include <_syslist.h>
+#include <sys/reent.h>
+#include <sys/errno.h>
+#include <sys/types.h>
+#include <sys/lv2errno.h>
+
+#include <sys/file.h>
+
+int
+_DEFUN(__librt_link_r,(r,old,new),
+	   struct _reent *r _AND
+	   const char *old _AND
+	   const char *new)
+{
+	return lv2errno_r(r,sysLv2FsLink(old,new));
+}
diff --git a/ppu/librt/truncate.c b/ppu/librt/truncate.c
new file mode 100644
index 00000000..e0f0d66e
--- /dev/null
+++ b/ppu/librt/truncate.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <_ansi.h>
+#include <_syslist.h>
+#include <sys/reent.h>
+#include <sys/errno.h>
+#include <sys/types.h>
+#include <sys/lv2errno.h>
+
+#include <sys/file.h>
+
+int
+_DEFUN(__librt_truncate_r,(r,path,len),
+	   struct _reent *r _AND
+	   const char *path _AND
+	   off_t len)
+{
+	return lv2errno_r(r,sysLv2FsTruncate(path,len));
+}
+
+int
+_DEFUN(__librt_ftruncate_r,(r,fd,len),
+	   struct _reent *r _AND
+	   int fd _AND
+	   off_t len)
+{
+	return lv2errno_r(r,sysLv2FsFtruncate(fd,len));
+}