1 /* mmap - map files or devices into memory. Linux version.
2 Copyright (C) 2017-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the 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 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
25 #ifndef __OFF_T_MATCHES_OFF64_T
26 # include <mmap_internal.h>
28 /* An architecture may override this. */
29 # ifndef MMAP_ADJUST_OFFSET
30 # define MMAP_ADJUST_OFFSET(offset) offset
34 __mmap (void *addr
, size_t len
, int prot
, int flags
, int fd
, off_t offset
)
36 MMAP_CHECK_PAGE_UNIT ();
38 if (offset
& MMAP_OFF_LOW_MASK
)
39 return (void *) INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL
);
42 return (void *) MMAP_CALL (mmap2
, addr
, len
, prot
, flags
, fd
,
43 offset
/ (uint32_t) MMAP2_PAGE_UNIT
);
45 return (void *) MMAP_CALL (mmap
, addr
, len
, prot
, flags
, fd
,
46 MMAP_ADJUST_OFFSET (offset
));
49 weak_alias (__mmap
, mmap
)
50 libc_hidden_def (__mmap
)
52 #endif /* __OFF_T_MATCHES_OFF64_T */