glibc/sysdeps/stub/mmap.c

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/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sys/types.h>
#include <sys/mman.h>
#include <errno.h>
/* Map addresses starting near ADDR and extending for LEN bytes. From
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OFFSET into the file FD describes according to PROT and FLAGS. If ADDR
is nonzero, it is the desired mapping address. If the MAP_FIXED bit is
set in FLAGS, the mapping will be at ADDR exactly (which must be
page-aligned); otherwise the system chooses a convenient nearby address.
The return value is the actual mapping address chosen or (caddr_t) -1
for errors (in which case `errno' is set). A successful `mmap' call
deallocates any previous mapping for the affected region. */
caddr_t
__mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
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{
errno = ENOSYS;
return (caddr_t) -1;
}
weak_alias (__mmap, mmap)