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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 */
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