1 /*
2 * posix_fadvise64() for MIPS uClibc
3 * http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html
4 *
5 * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
6 *
7 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
8 */
9
10 #include <_lfs_64.h>
11 #include <sys/syscall.h>
12 #include <bits/wordsize.h>
13
14 /* MIPS kernel only has NR_fadvise64 which acts as NR_fadvise64_64 */
15 #if defined __NR_fadvise64 && __WORDSIZE == 32
16 # include <fcntl.h>
17 # include <endian.h>
18
posix_fadvise64(int fd,off64_t offset,off64_t len,int advice)19 int posix_fadvise64(int fd, off64_t offset, off64_t len, int advice)
20 {
21 INTERNAL_SYSCALL_DECL(err);
22 # if _MIPS_SIM == _ABIO32
23 int ret = INTERNAL_SYSCALL(fadvise64, err, 7, fd, 0,
24 __LONG_LONG_PAIR ((long) (offset >> 32), (long) offset),
25 __LONG_LONG_PAIR ((long) (len >> 32), (long) len),
26 advice);
27 # else /* N32 || N64 */
28 int ret = INTERNAL_SYSCALL(fadvise64, err, 4, fd, offset, len, advice);
29 # endif
30 if (INTERNAL_SYSCALL_ERROR_P (ret, err))
31 return INTERNAL_SYSCALL_ERRNO (ret, err);
32 return 0;
33 }
34 #endif
35