diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/mmap.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/mmap.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/mmap.c b/sysdeps/unix/sysv/linux/i386/mmap.c new file mode 100644 index 0000000000..6be86925fc --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/mmap.c @@ -0,0 +1,36 @@ +/* Copyright (C) 2015 Free Software Foundation, Inc. + 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 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 <sys/types.h> +#include <sys/mman.h> +#include <errno.h> +#include <sysdep.h> + +#ifndef MMAP_PAGE_UNIT +# define MMAP_PAGE_UNIT 4096UL +#endif + +__ptr_t +__mmap (__ptr_t addr, size_t len, int prot, int flags, int fd, off_t offset) +{ + if (offset & (MMAP_PAGE_UNIT - 1)) + return (__ptr_t) INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); + return (__ptr_t) INLINE_SYSCALL (mmap2, 6, addr, len, prot, flags, fd, + offset / MMAP_PAGE_UNIT); +} + +weak_alias (__mmap, mmap) |