1 /* Copyright (C) 2003-2017 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
20 #include <shlib-compat.h>
22 int __posix_fadvise64_l64 (int fd
, off64_t offset
, off64_t len
, int advise
);
23 libc_hidden_proto (__posix_fadvise64_l64
)
25 /* Both arm and powerpc implements fadvise64_64 with last 'advise' argument
26 just after 'fd' to avoid the requirement of implementing 7-arg syscalls.
27 ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64.
29 tile requires __ASSUME_ALIGNED_REGISTER_PAIRS but implements the 32-bit
30 fadvise64_64 without the padding 0 after fd.
32 s390 implements fadvice64_64 using a specific struct with arguments
33 packed inside. This is the only implementation handled in arch-specific
36 #ifdef __ASSUME_FADVISE64_64_NO_ALIGN
37 # undef __ALIGNMENT_ARG
38 # define __ALIGNMENT_ARG
41 #ifndef __NR_fadvise64_64
42 # define __NR_fadvise64_64 __NR_fadvise64
45 /* Advice the system about the expected behaviour of the application with
46 respect to the file associated with FD. */
49 __posix_fadvise64_l64 (int fd
, off64_t offset
, off64_t len
, int advise
)
51 INTERNAL_SYSCALL_DECL (err
);
52 #ifdef __ASSUME_FADVISE64_64_6ARG
53 int ret
= INTERNAL_SYSCALL_CALL (fadvise64_64
, err
, fd
, advise
,
54 SYSCALL_LL64 (offset
), SYSCALL_LL64 (len
));
56 int ret
= INTERNAL_SYSCALL_CALL (fadvise64_64
, err
, fd
,
57 __ALIGNMENT_ARG
SYSCALL_LL64 (offset
),
58 SYSCALL_LL64 (len
), advise
);
60 if (!INTERNAL_SYSCALL_ERROR_P (ret
, err
))
62 return INTERNAL_SYSCALL_ERRNO (ret
, err
);
65 /* The type of the len argument was changed from size_t to off_t in
67 #ifndef __OFF_T_MATCHES_OFF64_T
68 # if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
69 int __posix_fadvise64_l32 (int fd
, off64_t offset
, size_t len
, int advise
);
72 attribute_compat_text_section
73 __posix_fadvise64_l32 (int fd
, off64_t offset
, size_t len
, int advise
)
75 return __posix_fadvise64_l64 (fd
, offset
, len
, advise
);
78 versioned_symbol (libc
, __posix_fadvise64_l64
, posix_fadvise64
, GLIBC_2_3_3
);
79 compat_symbol (libc
, __posix_fadvise64_l32
, posix_fadvise64
, GLIBC_2_2
);
81 weak_alias (__posix_fadvise64_l64
, posix_fadvise64
);
84 weak_alias (__posix_fadvise64_l64
, posix_fadvise64
);
85 strong_alias (__posix_fadvise64_l64
, posix_fadvise
);
87 libc_hidden_def (__posix_fadvise64_l64
)