1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/pread64.c b/sysdeps/unix/sysv/linux/pread64.c
new file mode 100644
index 0000000000..e2505dbaa4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/pread64.c
@@ -0,0 +1,53 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+extern ssize_t __syscall_pread64 (int fd, void *buf, size_t count,
+				  off_t offset_hi, off_t offset_lo);
+
+static ssize_t __emulate_pread64 (int fd, void *buf, size_t count,
+				  off64_t offset) internal_function;
+
+
+ssize_t
+__pread64 (fd, buf, count, offset)
+     int fd;
+     void *buf;
+     size_t count;
+     off64_t offset;
+{
+  ssize_t result;
+
+  /* First try the syscall.  */
+  result = __syscall_pread64 (fd, buf, count, (off_t) (offset >> 32),
+			      (off_t) (offset & 0xffffffff));
+  if (result == -1 && errno == ENOSYS)
+    /* No system call available.  Use the emulation.  */
+    result = __emulate_pread64 (fd, buf, count, offset);
+
+  return result;
+}
+
+weak_alias (__pread64, pread64)
+
+#define __pread64(fd, buf, count, offset) \
+     static internal_function __emulate_pread64 (fd, buf, count, offset)
+#include <sysdeps/posix/pread64.c>