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- /* Declarations and macros for the basic Mach things set at startup.
- Copyright (C) 1993, 1994 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 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. */
-
- #ifndef _MACH_INIT_H
-
- #define _MACH_INIT_H 1
-
- #include <mach/mach_types.h>
-
- /* Return the current task's task port. */
- extern mach_port_t __mach_task_self (void);
- extern mach_port_t mach_task_self (void);
-
- /* This cache is initialized at startup. */
- extern mach_port_t __mach_task_self_;
- #define __mach_task_self() (__mach_task_self_ + 0) /* Not an lvalue. */
- #define mach_task_self() (__mach_task_self ())
-
- /* Kernel page size. */
- extern vm_size_t __vm_page_size;
- extern vm_size_t vm_page_size;
-
- /* Round the address X up to a page boundary. */
- #define round_page(x) \
- ((((vm_offset_t) (x) + __vm_page_size - 1) / __vm_page_size) * \
- __vm_page_size)
-
- /* Truncate the address X down to a page boundary. */
- #define trunc_page(x) \
- ((((vm_offset_t) (x)) / __vm_page_size) * __vm_page_size)
-
- #endif /* mach_init.h */
-