1/*	$NetBSD: coff_machdep.h,v 1.5 2002/03/17 17:55:24 uch Exp $	*/
2
3/*
4 * Copyright (c) 1994, 1995 Scott Bartram
5 * All rights reserved.
6 *
7 * adapted from sys/sys/exec_ecoff.h
8 * based on Intel iBCS2
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#ifndef _SH3_COFF_MACHDEP_H_
34#define	_SH3_COFF_MACHDEP_H_
35
36/* f_magic flags */
37#define	COFF_MAGIC_SH3_BIG	0x500
38#define	COFF_MAGIC_SH3_LITTLE	0x550
39
40/* magic */
41#define	COFF_OMAGIC	0444	/* text not write-protected; data seg
42				   is contiguous with text */
43#define	COFF_NMAGIC	0410	/* text is write-protected; data starts
44				   at next seg following text */
45#define	COFF_ZMAGIC	0000	/* text and data segs are aligned for
46				   direct paging */
47#define	COFF_SMAGIC	0443	/* shared lib */
48
49#define	COFF_LDPGSZ 4096
50
51#define	COFF_SEGMENT_ALIGNMENT(fp, ap)					\
52    (((fp)->f_flags & COFF_F_EXEC) == 0 ? 4 : 16)
53
54#ifndef _BYTE_ORDER
55#error Define _BYTE_ORDER!
56#endif
57
58#if _BYTE_ORDER == BIG_ENDIAN
59#define	COFF_BADMAG(ex) ((ex)->f_magic != COFF_MAGIC_SH3_BIG)
60#endif
61#if _BYTE_ORDER == LITTLE_ENDIAN
62#define	COFF_BADMAG(ex) ((ex)->f_magic != COFF_MAGIC_SH3_LITTLE)
63#endif
64
65#define	IBCS2_HIGH_SYSCALL(n)		(((n) & 0x7f) == 0x28)
66#define	IBCS2_CVT_HIGH_SYSCALL(n)	(((n) >> 8) + 128)
67
68#ifdef DEBUG_COFF
69#define	DPRINTF(a)      printf a;
70#else
71#define	DPRINTF(a)
72#endif
73
74#define	COFF_ES_SYMNMLEN	8
75#define	COFF_ES_SYMENTSZ	18
76
77struct external_syment {
78	union {
79		char e_name[COFF_ES_SYMNMLEN];
80		struct {
81			char e_zeroes[4];
82			char e_offset[4];
83		} e;
84	} e;
85	char e_value[4];
86	char e_scnum[2];
87	char e_type[2];
88	char e_sclass[1];
89	char e_numaux[1];
90};
91
92#endif /* !_SH3_COFF_MACHDEP_H_ */
93
94