51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 1993-2016 Free Software Foundation, Inc.
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* Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** Commentary:
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Taken from GNU C Library
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Declarations and macros for the basic Mach things set at startup.
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*/
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#ifndef _MACH_INIT_H
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#define _MACH_INIT_H 1
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#include <mach/mach_types.h>
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/* Return the current task's task port. */
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extern mach_port_t mach_task_self (void);
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extern mach_port_t mach_host_self (void);
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/* Kernel page size. */
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extern vm_size_t __vm_page_size;
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extern vm_size_t vm_page_size;
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/* Round the address X up to a page boundary. */
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#define round_page(x) \
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((((vm_offset_t) (x) + __vm_page_size - 1) / __vm_page_size) * \
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__vm_page_size)
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/* Truncate the address X down to a page boundary. */
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#define trunc_page(x) \
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((((vm_offset_t) (x)) / __vm_page_size) * __vm_page_size)
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#endif /* mach_init.h */
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