| 1 | /* Copyright (C) 1994-2022 Free Software Foundation, Inc. |
|---|
| 2 | This file is part of the GNU C Library. |
|---|
| 3 | |
|---|
| 4 | The GNU C Library is free software; you can redistribute it and/or |
|---|
| 5 | modify it under the terms of the GNU Lesser General Public |
|---|
| 6 | License as published by the Free Software Foundation; either |
|---|
| 7 | version 2.1 of the License, or (at your option) any later version. |
|---|
| 8 | |
|---|
| 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 | Lesser General Public License for more details. |
|---|
| 13 | |
|---|
| 14 | You should have received a copy of the GNU Lesser General Public |
|---|
| 15 | License along with the GNU C Library; if not, see |
|---|
| 16 | <https://www.gnu.org/licenses/>. */ |
|---|
| 17 | |
|---|
| 18 | #include <sys/types.h> |
|---|
| 19 | #include <sys/mman.h> |
|---|
| 20 | #include <errno.h> |
|---|
| 21 | #include <mach.h> |
|---|
| 22 | |
|---|
| 23 | /* Deallocate any mapping for the region starting at ADDR and extending LEN |
|---|
| 24 | bytes. Returns 0 if successful, -1 for errors (and sets errno). */ |
|---|
| 25 | |
|---|
| 26 | int |
|---|
| 27 | __munmap (void *addr, size_t len) |
|---|
| 28 | { |
|---|
| 29 | kern_return_t err; |
|---|
| 30 | |
|---|
| 31 | if (addr == 0) |
|---|
| 32 | { |
|---|
| 33 | errno = EINVAL; |
|---|
| 34 | return -1; |
|---|
| 35 | } |
|---|
| 36 | |
|---|
| 37 | if (err = __vm_deallocate (__mach_task_self (), |
|---|
| 38 | (vm_address_t) addr, (vm_size_t) len)) |
|---|
| 39 | { |
|---|
| 40 | errno = err; |
|---|
| 41 | return -1; |
|---|
| 42 | } |
|---|
| 43 | return 0; |
|---|
| 44 | } |
|---|
| 45 | |
|---|
| 46 | libc_hidden_def (__munmap) |
|---|
| 47 | weak_alias (__munmap, munmap) |
|---|
| 48 | |
|---|
