diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mmap64.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/mmap64.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/sysdeps/unix/sysv/linux/mmap64.c b/sysdeps/unix/sysv/linux/mmap64.c deleted file mode 100644 index d3ea279afe..0000000000 --- a/sysdeps/unix/sysv/linux/mmap64.c +++ /dev/null @@ -1,60 +0,0 @@ -/* mmap - map files or devices into memory. Linux version. - Copyright (C) 1999-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 1999. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <unistd.h> -#include <sys/mman.h> -#include <sysdep.h> -#include <mmap_internal.h> - -/* To avoid silent truncation of offset when using mmap2, do not accept - offset larger than 1 << (page_shift + off_t bits). For archictures with - 32 bits off_t and page size of 4096 it would be 1^44. */ -#define MMAP_OFF_HIGH_MASK \ - ((-(MMAP2_PAGE_UNIT << 1) << (8 * sizeof (off_t) - 1))) - -#define MMAP_OFF_MASK (MMAP_OFF_HIGH_MASK | MMAP_OFF_LOW_MASK) - -/* An architecture may override this. */ -#ifndef MMAP_PREPARE -# define MMAP_PREPARE(addr, len, prot, flags, fd, offset) -#endif - -void * -__mmap64 (void *addr, size_t len, int prot, int flags, int fd, off64_t offset) -{ - MMAP_CHECK_PAGE_UNIT (); - - if (offset & MMAP_OFF_MASK) - return (void *) INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); - - MMAP_PREPARE (addr, len, prot, flags, fd, offset); -#ifdef __NR_mmap2 - return (void *) MMAP_CALL (mmap2, addr, len, prot, flags, fd, - (off_t) (offset / MMAP2_PAGE_UNIT)); -#else - return (void *) MMAP_CALL (mmap, addr, len, prot, flags, fd, offset); -#endif -} -weak_alias (__mmap64, mmap64) - -#ifdef __OFF_T_MATCHES_OFF64_T -weak_alias (__mmap64, mmap) -weak_alias (__mmap64, __mmap) -#endif |