1 files changed, 76 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/ftruncate64.c b/sysdeps/unix/sysv/linux/arm/ftruncate64.c
new file mode 100644
index 0000000000..ad5eb186c2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/ftruncate64.c
@@ -0,0 +1,76 @@
+/* Copyright (C) 1997,1998,1999,2000,2001,2003, 2005
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "kernel-features.h"
+
+#ifdef __NR_ftruncate64
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+/* The variable is shared between all wrappers around *truncate64 calls.  */
+extern int __have_no_truncate64;
+#endif
+
+
+/* Truncate the file FD refers to to LENGTH bytes.  */
+int
+__ftruncate64 (int fd, off64_t length)
+{
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+  if (! __have_no_truncate64)
+#endif
+    {
+      unsigned int low = length & 0xffffffff;
+      unsigned int high = length >> 32;
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+      int saved_errno = errno;
+#endif
+      int result = INLINE_SYSCALL (ftruncate64, 4, fd, 0,
+				   __LONG_LONG_PAIR (high, low));
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+      if (result != -1 || errno != ENOSYS)
+#endif
+	return result;
+
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+      __set_errno (saved_errno);
+      __have_no_truncate64 = 1;
+#endif
+    }
+
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+  if ((off_t) length != length)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+  return __ftruncate (fd, (off_t) length);
+#endif
+}
+weak_alias (__ftruncate64, ftruncate64)
+
+#else
+/* Use the generic implementation.  */
+# include <misc/ftruncate64.c>
+#endif