1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#ifndef _SYMS_H
#define _SYMS_H
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 2.8 */
/* Storage Classes are defined in storclass.h */
#include <storclass.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Number of characters in a symbol name */
#define SYMNMLEN 8
/* Number of characters in a file name */
#define FILNMLEN 14
/* Number of array dimensions in auxiliary entry */
#define DIMNUM 4
struct syment
{
union
{
char _n_name[SYMNMLEN]; /* old COFF version */
struct
{
long _n_zeroes; /* new == 0 */
long _n_offset; /* offset into string table */
} _n_n;
char *_n_nptr[2]; /* allows for overlaying */
} _n;
unsigned long n_value; /* value of symbol */
short n_scnum; /* section number */
unsigned short n_type; /* type and derived type */
char n_sclass; /* storage class */
char n_numaux; /* number of aux. entries */
};
#define n_name _n._n_name
#define n_nptr _n._n_nptr[1]
#define n_zeroes _n._n_n._n_zeroes
#define n_offset _n._n_n._n_offset
/*
* Relocatable symbols have a section number of the
* section in which they are defined. Otherwise, section
* numbers have the following meanings:
*/
/* undefined symbol */
#define N_UNDEF 0
/* value of symbol is absolute */
#define N_ABS -1
/* special debugging symbol -- value of symbol is meaningless */
#define N_DEBUG -2
/* indicates symbol needs transfer vector (preload) */
#define N_TV (unsigned short)-3
/* indicates symbol needs transfer vector (postload) */
#define P_TV (unsigned short)-4
/*
* The fundamental type of a symbol packed into the low
* 4 bits of the word.
*/
#define _EF ".ef"
#define T_NULL 0
#define T_ARG 1 /* function argument (only used by compiler) */
#define T_CHAR 2 /* character */
#define T_SHORT 3 /* short integer */
#define T_INT 4 /* integer */
#define T_LONG 5 /* long integer */
#define T_FLOAT 6 /* floating point */
#define T_DOUBLE 7 /* double word */
#define T_STRUCT 8 /* structure */
#define T_UNION 9 /* union */
#define T_ENUM 10 /* enumeration */
#define T_MOE 11 /* member of enumeration */
#define T_UCHAR 12 /* unsigned character */
#define T_USHORT 13 /* unsigned short */
#define T_UINT 14 /* unsigned integer */
#define T_ULONG 15 /* unsigned long */
/*
* derived types are:
*/
#define DT_NON 0 /* no derived type */
#define DT_PTR 1 /* pointer */
#define DT_FCN 2 /* function */
#define DT_ARY 3 /* array */
/*
* type packing constants
*/
#define N_BTMASK 017
#define N_TMASK 060
#define N_TMASK1 0300
#define N_TMASK2 0360
#define N_BTSHFT 4
#define N_TSHIFT 2
/*
* MACROS
*/
/* Basic Type of x */
#define BTYPE(x) ((x) & N_BTMASK)
/* Is x a pointer ? */
#define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
/* Is x a function ? */
#define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
/* Is x an array ? */
#define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
/* Is x a structure, union, or enumeration TAG? */
#define ISTAG(x) ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
#define INCREF(x) ((((x)&~N_BTMASK)<<N_TSHIFT)|(DT_PTR<<N_BTSHFT)|(x&N_BTMASK))
#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
/*
* AUXILIARY ENTRY FORMAT
*/
union auxent
{
struct
{
long x_tagndx; /* str, un, or enum tag indx */
union
{
struct
{
unsigned short x_lnno; /* declaration line */
/* number */
unsigned short x_size; /* str, union, array */
/* size */
} x_lnsz;
long x_fsize; /* size of function */
} x_misc;
union
{
struct /* if ISFCN, tag, or .bb */
{
long x_lnnoptr; /* ptr to fcn line # */
long x_endndx; /* entry ndx past */
/* block end */
} x_fcn;
struct /* if ISARY, up to 4 dimen. */
{
unsigned short x_dimen[DIMNUM];
} x_ary;
} x_fcnary;
unsigned short x_tvndx; /* tv index */
} x_sym;
struct
{
char x_fname[FILNMLEN];
} x_file;
struct
{
long x_scnlen; /* section length */
unsigned short x_nreloc; /* number of reloc entries */
unsigned short x_nlinno; /* number of line numbers */
} x_scn;
struct
{
long x_tvfill; /* tv fill value */
unsigned short x_tvlen; /* length of .tv */
unsigned short x_tvran[2]; /* tv range */
} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
};
#define SYMENT struct syment
#define SYMESZ 18 /* sizeof(SYMENT) */
#define AUXENT union auxent
#define AUXESZ 18 /* sizeof(AUXENT) */
/* Defines for "special" symbols */
#define _ETEXT "etext"
#define _EDATA "edata"
#define _END "end"
#define _START "_start"
#ifdef __cplusplus
}
#endif
#endif /* _SYMS_H */
|
