1/* $NetBSD: ecoff_machdep.h,v 1.24 2020/07/26 08:08:41 simonb Exp $ */
2
3/*
4 * Copyright (c) 1997 Jonathan Stone
5 * All rights reserved.
6 *
7 * Copyright (c) 1994 Adam Glass
8 * All rights reserved.
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. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by Adam Glass.
21 * 4. The name of the Author may not be used to endorse or promote products
22 * derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL Adam Glass BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#define ECOFF_LDPGSZ 4096
38
39#define ECOFF_PAD
40#define ECOFF32_PAD
41
42#define ECOFF32_MACHDEP \
43 ecoff32_ulong gprmask; \
44 ecoff32_ulong cprmask[4]; \
45 ecoff32_ulong gp_value
46
47#define ECOFF_MACHDEP \
48 u_long gprmask; \
49 u_long cprmask[4]; \
50 u_long gp_value
51#ifdef _KERNEL
52#include <mips/locore.h> /* mips CPU architecture levels */
53#define _MIPS3_OK() CPUISMIPS3
54#else
55#define _MIPS3_OK() /*CONSTCOND*/1
56#endif
57
58
59#define ECOFF_MAGIC_MIPSEB 0x0160 /* mips1, big-endian */
60#define ECOFF_MAGIC_MIPSEL 0x0162 /* mips1, little-endian */
61#define ECOFF_MAGIC_MIPSEL3 0x0142 /* mips3, little-endian */
62
63#if BYTE_ORDER == LITTLE_ENDIAN
64#define ECOFF_BADMAG(ep) \
65 (! \
66 ((ep)->f.f_magic == ECOFF_MAGIC_MIPSEL || \
67 (_MIPS3_OK() && (ep)->f.f_magic == ECOFF_MAGIC_MIPSEL3)) \
68 )
69#endif
70#if BYTE_ORDER == BIG_ENDIAN
71#define ECOFF_BADMAG(ep) ((ep)->f.f_magic != ECOFF_MAGIC_MIPSEB)
72#endif
73
74
75#define ECOFF_SEGMENT_ALIGNMENT(ep) ((ep)->a.vstamp < 23 ? 8 : 16)
76#define ECOFF32_SEGMENT_ALIGNMENT(ep) ((ep)->a.vstamp < 23 ? 8 : 16)
77
78#ifdef _KERNEL
79struct proc;
80struct exec_package;
81void cpu_exec_ecoff_setregs(struct lwp *, struct exec_package *, vaddr_t);
82#endif /* _KERNEL */
83
84
85struct ecoff32_symhdr {
86 int16_t magic;
87 int16_t vstamp;
88 int32_t ilineMax;
89 int32_t cbLine;
90 int32_t cbLineOffset;
91 int32_t idnMax;
92 int32_t cbDnOffset;
93 int32_t ipdMax;
94 int32_t cbPdOffset;
95 int32_t isymMax;
96 int32_t cbSymOffset;
97 int32_t ioptMax;
98 int32_t cbOptOffset;
99 int32_t iauxMax;
100 int32_t cbAuxOffset;
101 int32_t issMax;
102 int32_t cbSsOffset;
103 int32_t issExtMax;
104 int32_t cbSsExtOffset;
105 int32_t ifdMax;
106 int32_t cbFdOffset;
107 int32_t crfd;
108 int32_t cbRfdOffset;
109 int32_t iextMax;
110 int32_t cbExtOffset;
111};
112
113/*
114 * ECOFF symbol definitions for 32-bit mips.
115 * XXX 64-bit (mips3?) may be different.
116 */
117struct ecoff_symhdr {
118 int16_t magic;
119 int16_t vstamp;
120 int32_t ilineMax;
121 int32_t cbLine;
122 int32_t cbLineOffset;
123 int32_t idnMax;
124 int32_t cbDnOffset;
125 int32_t ipdMax;
126 int32_t cbPdOffset;
127 int32_t isymMax;
128 int32_t cbSymOffset;
129 int32_t ioptMax;
130 int32_t cbOptOffset;
131 int32_t iauxMax;
132 int32_t cbAuxOffset;
133 int32_t issMax;
134 int32_t cbSsOffset;
135 int32_t issExtMax;
136 int32_t cbSsExtOffset;
137 int32_t ifdMax;
138 int32_t cbFdOffset;
139 int32_t crfd;
140 int32_t cbRfdOffset;
141 int32_t iextMax;
142 int32_t cbExtOffset;
143};
144
145/* Macro for field name used by cgd's Alpha-derived code */
146#define esymMax iextMax
147
148
149struct ecoff_extsym {
150 u_int16_t es_flags;
151 u_int16_t es_ifd;
152 int32_t es_strindex;
153 int32_t es_value;
154 unsigned es_type:6;
155 unsigned es_class:5;
156 unsigned :1;
157 unsigned es_symauxindex:20;
158};
159
160struct ecoff32_extsym {
161 uint16_t es_flags;
162 uint16_t es_ifd;
163 int32_t es_strindex;
164 int32_t es_value;
165 unsigned es_type:6;
166 unsigned es_class:5;
167 unsigned :1;
168 unsigned es_symauxindex:20;
169};