diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 02065d80f..1ec9e5987 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,8 @@
+2002-07-25  Jeff Johnston  <jjohnstn@redhat.com>
+
+	* libc/sys/linux/io64.c (truncate64, ftruncate64): Added.
+	* libc/sys/linux/sys/types.h (off64_t): Definition added.
+
 2002-07-25  Jeff Johnston  <jjohnstn@redhat.com>
 
 	* libc/sys/linux/Makefile.am: Add fclean.c.
diff --git a/newlib/libc/sys/linux/io64.c b/newlib/libc/sys/linux/io64.c
index 90e48888e..7f87c1e9b 100644
--- a/newlib/libc/sys/linux/io64.c
+++ b/newlib/libc/sys/linux/io64.c
@@ -14,10 +14,29 @@
 #include <sys/ioctl.h>
 #include <machine/syscall.h>
 
+#define __NR___truncate64 __NR_truncate64
+#define __NR___ftruncate64 __NR_ftruncate64
+
 _syscall2(int,fstat64,int,fd,struct stat64 *,st)
 _syscall2(int,lstat64,const char *,name,struct stat64 *,st)
 _syscall2(int,stat64,const char *,name,struct stat64 *,st)
 
+static _syscall3(int,__truncate64,const char *,name,int,high,int,low)
+
+int __libc_truncate64(const char *name, off64_t length)
+{
+  return __truncate64(name,(length >> 32), (length & 0xffffffff));
+}
+weak_alias(__libc_truncate64,truncate64)
+
+static _syscall3(int,__ftruncate64,int,fd,int,high,int,low);
+
+int __libc_ftruncate64(int fd, off64_t length)
+{
+  return __ftruncate64(fd,(length >> 32),(length & 0xffffffff));
+}
+weak_alias(__libc_ftruncate64,ftruncate64)
+
 static _syscall5(void,_llseek,int,fd,off_t,hi,off_t,lo,loff_t *,pos,int,whence)
 
 loff_t __libc_lseek64(int fd, loff_t offset, int whence)
diff --git a/newlib/libc/sys/linux/sys/types.h b/newlib/libc/sys/linux/sys/types.h
index 41b26b63d..4287a81bc 100644
--- a/newlib/libc/sys/linux/sys/types.h
+++ b/newlib/libc/sys/linux/sys/types.h
@@ -143,10 +143,12 @@ typedef	long	fd_mask;
 #define __ssize_t_defined
 #define __key_t_defined
 #define __off_t_defined
+#define __off64_t_defined
 
 typedef __ino64_t ino64_t;
 typedef __uint32_t uintptr_t;
 typedef __int32_t intptr_t;
+typedef __off64_t off64_t;
 
 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
 typedef	struct _physadr {