| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Declarations and macros for the basic Mach things set at startup. |
| 2 | Copyright (C) 1993-2015 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _MACH_INIT_H |
| 20 | |
| 21 | #define _MACH_INIT_H 1 |
| 22 | |
| 23 | #include <mach/mach_types.h> |
| 24 | |
| 25 | /* Return the current task's task port. */ |
| 26 | extern mach_port_t __mach_task_self (void); |
| 27 | extern mach_port_t mach_task_self (void); |
| 28 | |
| 29 | /* This cache is initialized at startup. */ |
| 30 | extern mach_port_t __mach_task_self_; |
| 31 | #define __mach_task_self() (__mach_task_self_ + 0) /* Not an lvalue. */ |
| 32 | #define mach_task_self() (__mach_task_self ()) |
| 33 | |
| 34 | /* Kernel page size. */ |
| 35 | extern vm_size_t __vm_page_size; |
| 36 | extern vm_size_t vm_page_size; |
| 37 | |
| 38 | /* Round the address X up to a page boundary. */ |
| 39 | #define round_page(x) \ |
| 40 | ((((vm_offset_t) (x) + __vm_page_size - 1) / __vm_page_size) * \ |
| 41 | __vm_page_size) |
| 42 | |
| 43 | /* Truncate the address X down to a page boundary. */ |
| 44 | #define trunc_page(x) \ |
| 45 | ((((vm_offset_t) (x)) / __vm_page_size) * __vm_page_size) |
| 46 | |
| 47 | #endif /* mach_init.h */ |