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
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
|
/* IBM RS/6000 "XCOFF64" file definitions for BFD.
Copyright (C) 2000-2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/********************** FILE HEADER **********************/
struct external_filehdr
{
char f_magic[2]; /* magic number */
char f_nscns[2]; /* number of sections */
char f_timdat[4]; /* time & date stamp */
char f_symptr[8]; /* file pointer to symtab */
char f_opthdr[2]; /* sizeof(optional hdr) */
char f_flags[2]; /* flags */
char f_nsyms[4]; /* number of symtab entries */
};
/* IBM RS/6000. */
#define U803XTOCMAGIC 0757 /* Aix 4.3 64-bit XCOFF */
#define U64_TOCMAGIC 0767 /* AIX 5+ 64-bit XCOFF */
#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC && (x).f_magic != U64_TOCMAGIC)
#define FILHDR struct external_filehdr
#define FILHSZ 24
/********************** AOUT "OPTIONAL HEADER" **********************/
typedef struct
{
unsigned char magic[2]; /* type of file */
unsigned char vstamp[2]; /* version stamp */
unsigned char o_debugger[4]; /* reserved */
unsigned char text_start[8]; /* base of text used for this file */
unsigned char data_start[8]; /* base of data used for this file */
unsigned char o_toc[8]; /* address of TOC */
unsigned char o_snentry[2]; /* section number of entry point */
unsigned char o_sntext[2]; /* section number of .text section */
unsigned char o_sndata[2]; /* section number of .data section */
unsigned char o_sntoc[2]; /* section number of TOC */
unsigned char o_snloader[2]; /* section number of .loader section */
unsigned char o_snbss[2]; /* section number of .bss section */
unsigned char o_algntext[2]; /* .text alignment */
unsigned char o_algndata[2]; /* .data alignment */
unsigned char o_modtype[2]; /* module type (??) */
unsigned char o_cputype[2]; /* cpu type */
unsigned char o_resv2[4]; /* reserved */
unsigned char tsize[8]; /* text size bytes, padded to FW bdry */
unsigned char dsize[8]; /* initialized data " " */
unsigned char bsize[8]; /* uninitialized data " " */
unsigned char entry[8]; /* entry pt. */
unsigned char o_maxstack[8]; /* max stack size (??) */
unsigned char o_maxdata[8]; /* max data size (??) */
unsigned char o_resv3[16]; /* reserved */
}
AOUTHDR;
#define AOUTSZ 120
#define SMALL_AOUTSZ (0)
#define AOUTHDRSZ 72
/********************** SECTION HEADER **********************/
struct external_scnhdr
{
char s_name[8]; /* section name */
char s_paddr[8]; /* physical address, aliased s_nlib */
char s_vaddr[8]; /* virtual address */
char s_size[8]; /* section size */
char s_scnptr[8]; /* file ptr to raw data for section */
char s_relptr[8]; /* file ptr to relocation */
char s_lnnoptr[8]; /* file ptr to line numbers */
char s_nreloc[4]; /* number of relocation entries */
char s_nlnno[4]; /* number of line number entries*/
char s_flags[4]; /* flags */
char s_pad[4]; /* padding */
};
#define SCNHDR struct external_scnhdr
#define SCNHSZ 72
/********************** LINE NUMBERS **********************/
/* 1 line number entry for every "breakpointable" source line in a section.
Line numbers are grouped on a per function basis; first entry in a function
grouping will have l_lnno = 0 and in place of physical address will be the
symbol table index of the function name. */
struct external_lineno
{
union
{
char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
char l_paddr[8]; /* (physical) address of line number */
} l_addr;
char l_lnno[4]; /* line number */
};
#define LINENO struct external_lineno
#define LINESZ 12
/********************** SYMBOLS **********************/
#define E_SYMNMLEN 8 /* # characters in a symbol name */
#define E_FILNMLEN 14 /* # characters in a file name */
#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
struct external_syment
{
char e_value[8];
char e_offset[4];
char e_scnum[2];
char e_type[2];
char e_sclass[1];
char e_numaux[1];
};
#define N_BTMASK (017)
#define N_TMASK (060)
#define N_BTSHFT (4)
#define N_TSHIFT (2)
union external_auxent
{
struct {
union {
struct {
char x_lnno[4]; /* declaration line number */
char x_size[2]; /* str/union/array size */
} x_lnsz;
struct {
char x_lnnoptr[8];/* ptr to fcn line */
char x_fsize[4]; /* size of function */
char x_endndx[4]; /* entry ndx past block end */
} x_fcn;
} x_fcnary;
} x_sym;
struct {
union {
char x_fname[E_FILNMLEN];
struct {
char x_zeroes[4];
char x_offset[4];
char x_pad[6];
} x_n;
} x_n;
unsigned char x_ftype[1];
unsigned char x_resv[2];
} x_file;
struct {
char x_exptr[8];
char x_fsize[4];
char x_endndx[4];
char x_pad[1];
} x_except;
struct {
unsigned char x_scnlen_lo[4];
unsigned char x_parmhash[4];
unsigned char x_snhash[2];
unsigned char x_smtyp[1];
unsigned char x_smclas[1];
unsigned char x_scnlen_hi[4];
unsigned char x_pad[1];
} x_csect;
struct {
char x_pad[17];
char x_auxtype[1];
} x_auxtype;
};
#define SYMENT struct external_syment
#define SYMESZ 18
#define AUXENT union external_auxent
#define AUXESZ 18
#define DBXMASK 0x80 /* for dbx storage mask */
#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h. */
#define _AUX_EXCEPT 255
#define _AUX_FCN 254
#define _AUX_SYM 253
#define _AUX_FILE 252
#define _AUX_CSECT 251
/********************** RELOCATION DIRECTIVES **********************/
struct external_reloc
{
char r_vaddr[8];
char r_symndx[4];
char r_size[1];
char r_type[1];
};
#define RELOC struct external_reloc
#define RELSZ 14
#define DEFAULT_DATA_SECTION_ALIGNMENT 4
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
/* The ldhdr structure. This appears at the start of the .loader
section. */
struct external_ldhdr
{
bfd_byte l_version[4];
bfd_byte l_nsyms[4];
bfd_byte l_nreloc[4];
bfd_byte l_istlen[4];
bfd_byte l_nimpid[4];
bfd_byte l_stlen[4];
bfd_byte l_impoff[8];
bfd_byte l_stoff[8];
bfd_byte l_symoff[8];
bfd_byte l_rldoff[8];
};
#define LDHDRSZ (56)
struct external_ldsym
{
bfd_byte l_value[8];
bfd_byte l_offset[4];
bfd_byte l_scnum[2];
bfd_byte l_smtype[1];
bfd_byte l_smclas[1];
bfd_byte l_ifile[4];
bfd_byte l_parm[4];
};
#define LDSYMSZ (24)
struct external_ldrel
{
bfd_byte l_vaddr[8];
bfd_byte l_rtype[2];
bfd_byte l_rsecnm[2];
bfd_byte l_symndx[4];
};
#define LDRELSZ (16)
struct external_exceptab
{
union {
bfd_byte e_symndx[4];
bfd_byte e_paddr[8];
} e_addr;
bfd_byte e_lang[1];
bfd_byte e_reason[1];
};
#define EXCEPTSZ (10)
|
