source: trunk/binutils/include/coff/external.h@ 2753

Last change on this file since 2753 was 607, checked in by bird, 22 years ago

Initial revision
  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 6.3 KB
Line 
1/* external.h -- External COFF structures
2
3 Copyright 2001 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18
19#ifndef COFF_EXTERNAL_H
20#define COFF_EXTERNAL_H
21
22#ifndef DO_NOT_DEFINE_FILHDR
23/********************** FILE HEADER **********************/
24
25struct external_filehdr
26 {
27 char f_magic[2]; /* magic number */
28 char f_nscns[2]; /* number of sections */
29 char f_timdat[4]; /* time & date stamp */
30 char f_symptr[4]; /* file pointer to symtab */
31 char f_nsyms[4]; /* number of symtab entries */
32 char f_opthdr[2]; /* sizeof(optional hdr) */
33 char f_flags[2]; /* flags */
34 };
35
36#define FILHDR struct external_filehdr
37#define FILHSZ 20
38#endif
39
40#ifndef DO_NOT_DEFINE_AOUTHDR
41/********************** AOUT "OPTIONAL HEADER" **********************/
42
43typedef struct external_aouthdr
44 {
45 char magic[2]; /* type of file */
46 char vstamp[2]; /* version stamp */
47 char tsize[4]; /* text size in bytes, padded to FW bdry*/
48 char dsize[4]; /* initialized data " " */
49 char bsize[4]; /* uninitialized data " " */
50 char entry[4]; /* entry pt. */
51 char text_start[4]; /* base of text used for this file */
52 char data_start[4]; /* base of data used for this file */
53 }
54AOUTHDR;
55
56#define AOUTHDRSZ 28
57#define AOUTSZ 28
58#endif
59
60#ifndef DO_NOT_DEFINE_SCNHDR
61/********************** SECTION HEADER **********************/
62
63struct external_scnhdr
64 {
65 char s_name[8]; /* section name */
66 char s_paddr[4]; /* physical address, aliased s_nlib */
67 char s_vaddr[4]; /* virtual address */
68 char s_size[4]; /* section size */
69 char s_scnptr[4]; /* file ptr to raw data for section */
70 char s_relptr[4]; /* file ptr to relocation */
71 char s_lnnoptr[4]; /* file ptr to line numbers */
72 char s_nreloc[2]; /* number of relocation entries */
73 char s_nlnno[2]; /* number of line number entries */
74 char s_flags[4]; /* flags */
75 };
76
77#define SCNHDR struct external_scnhdr
78#define SCNHSZ 40
79
80/* Names of "special" sections. */
81
82#define _TEXT ".text"
83#define _DATA ".data"
84#define _BSS ".bss"
85#define _COMMENT ".comment"
86#define _LIB ".lib"
87#endif /* not DO_NOT_DEFINE_SCNHDR */
88
89#ifndef DO_NOT_DEFINE_LINENO
90
91/********************** LINE NUMBERS **********************/
92
93#ifndef L_LNNO_SIZE
94#error L_LNNO_SIZE needs to be defined
95#endif
96
97/* 1 line number entry for every "breakpointable" source line in a section.
98 Line numbers are grouped on a per function basis; first entry in a function
99 grouping will have l_lnno = 0 and in place of physical address will be the
100 symbol table index of the function name. */
101struct external_lineno
102{
103 union
104 {
105 char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
106 char l_paddr[4]; /* (physical) address of line number */
107 } l_addr;
108
109 char l_lnno[L_LNNO_SIZE]; /* line number */
110};
111
112#define LINENO struct external_lineno
113#define LINESZ (4 + L_LNNO_SIZE)
114
115#if L_LNNO_SIZE == 4
116#define GET_LINENO_LNNO(abfd, ext) H_GET_32 (abfd, (ext->l_lnno))
117#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_32 (abfd, val, (ext->l_lnno))
118#endif
119#if L_LNNO_SIZE == 2
120#define GET_LINENO_LNNO(abfd, ext) H_GET_16 (abfd, (ext->l_lnno))
121#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_16 (abfd, val, (ext->l_lnno))
122#endif
123
124#endif /* not DO_NOT_DEFINE_LINENO */
125
126#ifndef DO_NOT_DEFINE_SYMENT
127/********************** SYMBOLS **********************/
128
129#define E_SYMNMLEN 8 /* # characters in a symbol name */
130#ifndef E_FILNMLEN
131#define E_FILNMLEN 14
132#endif
133#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
134
135struct external_syment
136{
137 union
138 {
139 char e_name[E_SYMNMLEN];
140
141 struct
142 {
143 char e_zeroes[4];
144 char e_offset[4];
145 } e;
146 } e;
147
148 char e_value[4];
149 char e_scnum[2];
150 char e_type[2];
151 char e_sclass[1];
152 char e_numaux[1];
153};
154
155#define SYMENT struct external_syment
156#define SYMESZ 18
157
158#ifndef N_BTMASK
159#define N_BTMASK 0xf
160#endif
161
162#ifndef N_TMASK
163#define N_TMASK 0x30
164#endif
165
166#ifndef N_BTSHFT
167#define N_BTSHFT 4
168#endif
169
170#ifndef N_TSHIFT
171#define N_TSHIFT 2
172#endif
173
174#endif /* not DO_NOT_DEFINE_SYMENT */
175
176#ifndef DO_NOT_DEFINE_AUXENT
177
178union external_auxent
179{
180 struct
181 {
182 char x_tagndx[4]; /* str, un, or enum tag indx */
183
184 union
185 {
186 struct
187 {
188 char x_lnno[2]; /* declaration line number */
189 char x_size[2]; /* str/union/array size */
190 } x_lnsz;
191
192 char x_fsize[4]; /* size of function */
193
194 } x_misc;
195
196 union
197 {
198 struct /* if ISFCN, tag, or .bb */
199 {
200 char x_lnnoptr[4]; /* ptr to fcn line # */
201 char x_endndx[4]; /* entry ndx past block end */
202 } x_fcn;
203
204 struct /* if ISARY, up to 4 dimen. */
205 {
206 char x_dimen[E_DIMNUM][2];
207 } x_ary;
208
209 } x_fcnary;
210
211 char x_tvndx[2]; /* tv index */
212
213 } x_sym;
214
215 union
216 {
217 char x_fname[E_FILNMLEN];
218
219 struct
220 {
221 char x_zeroes[4];
222 char x_offset[4];
223 } x_n;
224
225 } x_file;
226
227 struct
228 {
229 char x_scnlen[4]; /* section length */
230 char x_nreloc[2]; /* # relocation entries */
231 char x_nlinno[2]; /* # line numbers */
232#ifdef INCLUDE_COMDAT_FIELDS_IN_AUXENT
233 char x_checksum[4]; /* section COMDAT checksum */
234 char x_associated[2]; /* COMDAT associated section index */
235 char x_comdat[1]; /* COMDAT selection number */
236#endif
237 } x_scn;
238
239 struct
240 {
241 char x_tvfill[4]; /* tv fill value */
242 char x_tvlen[2]; /* length of .tv */
243 char x_tvran[2][2]; /* tv range */
244 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
245};
246
247#define AUXENT union external_auxent
248#define AUXESZ 18
249
250#define _ETEXT "etext"
251
252#endif /* not DO_NOT_DEFINE_AUXENT */
253
254#endif /* COFF_EXTERNAL_H */
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