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[glibc.git] / sysdeps / mach / munmap.c
blob79f54e14adeb7c4daf4c218b11738cede51c4791
1 /* Copyright (C) 1994, 1995, 1997 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 Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 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 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #include <sys/types.h>
20 #include <sys/mman.h>
21 #include <errno.h>
22 #include <mach.h>
24 /* Deallocate any mapping for the region starting at ADDR and extending LEN
25 bytes. Returns 0 if successful, -1 for errors (and sets errno). */
27 int
28 __munmap (__ptr_t addr, size_t len)
30 kern_return_t err;
31 if (err = __vm_deallocate (__mach_task_self (),
32 (vm_address_t) addr, (vm_size_t) len))
34 errno = err;
35 return -1;
37 return 0;
40 weak_alias (__munmap, munmap)