1 /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
22 #include <sys/syscall.h>
26 extern ssize_t
__syscall_pread64 (int fd
, void *buf
, size_t count
,
27 off_t offset_hi
, off_t offset_lo
);
29 static ssize_t
__emulate_pread64 (int fd
, void *buf
, size_t count
,
30 off64_t offset
) internal_function
;
34 __pread64 (fd
, buf
, count
, offset
)
42 /* First try the syscall. */
43 result
= __syscall_pread64 (fd
, buf
, count
, (off_t
) (offset
>> 32),
44 (off_t
) (offset
& 0xffffffff));
45 if (result
== -1 && errno
== ENOSYS
)
46 /* No system call available. Use the emulation. */
47 result
= __emulate_pread64 (fd
, buf
, count
, offset
);
52 weak_alias (__pread64
, pread64
)
54 #define __pread64(fd, buf, count, offset) \
55 static internal_function __emulate_pread64 (fd, buf, count, offset)
57 #include <sysdeps/posix/pread64.c>