1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1998 Robert Nordier
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _BTX_H_
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#define _BTX_H_
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#include <sys/types.h>
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#define BTX_PGSIZE 0x1000 /* Page size */
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#define BTX_PGBASE 0x5000 /* Start of page tables */
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#define BTX_MAXCWR 0x3bc /* Max. btx_pgctl adjustment */
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/*
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* BTX image header.
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*/
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struct btx_hdr {
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uint8_t btx_machid; /* Machine ID */
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uint8_t btx_hdrsz; /* Header size */
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uint8_t btx_magic[3]; /* Magic */
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uint8_t btx_majver; /* Major version */
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uint8_t btx_minver; /* Minor version */
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uint8_t btx_flags; /* Flags */
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uint16_t btx_pgctl; /* Paging control */
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uint16_t btx_textsz; /* Text size */
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uint32_t btx_entry; /* Client entry address */
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};
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/* btx_machid */
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#define BTX_I386 0xeb /* Intel i386 or compatible */
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/* btx_magic */
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#define BTX_MAG0 'B'
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#define BTX_MAG1 'T'
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#define BTX_MAG2 'X'
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/* btx_flags */
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#define BTX_MAPONE 0x80 /* Start mapping at page 1 */
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#define BTX_MAPPED(btx) (((btx).btx_pgctl | (BTX_PGSIZE / 4 - 1)) + 1)
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#define BTX_ORIGIN(btx) (BTX_PGBASE + BTX_MAPPED(btx) * 4)
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#define BTX_ENTRY(btx) (BTX_ORIGIN(btx) + 2 + (btx).btx_hdrsz)
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#endif /* !_BTX_H_ */
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