source: trunk/binutils/include/coff/rs6k64.h@ 3778

Last change on this file since 3778 was 610, checked in by bird, 22 years ago

This commit was generated by cvs2svn to compensate for changes in r609,
which included commits to RCS files with non-trunk default branches.
  • Property cvs2svn:cvs-rev set to 1.1.1.2
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 7.2 KB
Line 
1/* IBM RS/6000 "XCOFF64" file definitions for BFD.
2 Copyright (C) 2000, 2002 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
17
18/********************** FILE HEADER **********************/
19
20struct external_filehdr
21{
22 char f_magic[2]; /* magic number */
23 char f_nscns[2]; /* number of sections */
24 char f_timdat[4]; /* time & date stamp */
25 char f_symptr[8]; /* file pointer to symtab */
26 char f_opthdr[2]; /* sizeof(optional hdr) */
27 char f_flags[2]; /* flags */
28 char f_nsyms[4]; /* number of symtab entries */
29};
30
31/* IBM RS/6000. */
32#define U803XTOCMAGIC 0757 /* Aix 4.3 64-bit XCOFF */
33#define U64_TOCMAGIC 0767 /* AIX 5+ 64-bit XCOFF */
34#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC && (x).f_magic != U64_TOCMAGIC)
35
36#define FILHDR struct external_filehdr
37#define FILHSZ 24
38
39/********************** AOUT "OPTIONAL HEADER" **********************/
40
41typedef struct
42{
43 unsigned char magic[2]; /* type of file */
44 unsigned char vstamp[2]; /* version stamp */
45 unsigned char o_debugger[4]; /* reserved */
46 unsigned char text_start[8]; /* base of text used for this file */
47 unsigned char data_start[8]; /* base of data used for this file */
48 unsigned char o_toc[8]; /* address of TOC */
49 unsigned char o_snentry[2]; /* section number of entry point */
50 unsigned char o_sntext[2]; /* section number of .text section */
51 unsigned char o_sndata[2]; /* section number of .data section */
52 unsigned char o_sntoc[2]; /* section number of TOC */
53 unsigned char o_snloader[2]; /* section number of .loader section */
54 unsigned char o_snbss[2]; /* section number of .bss section */
55 unsigned char o_algntext[2]; /* .text alignment */
56 unsigned char o_algndata[2]; /* .data alignment */
57 unsigned char o_modtype[2]; /* module type (??) */
58 unsigned char o_cputype[2]; /* cpu type */
59 unsigned char o_resv2[4]; /* reserved */
60 unsigned char tsize[8]; /* text size bytes, padded to FW bdry */
61 unsigned char dsize[8]; /* initialized data " " */
62 unsigned char bsize[8]; /* uninitialized data " " */
63 unsigned char entry[8]; /* entry pt. */
64 unsigned char o_maxstack[8]; /* max stack size (??) */
65 unsigned char o_maxdata[8]; /* max data size (??) */
66 unsigned char o_resv3[16]; /* reserved */
67}
68AOUTHDR;
69
70#define AOUTSZ 120
71#define SMALL_AOUTSZ (0)
72#define AOUTHDRSZ 72
73
74/********************** SECTION HEADER **********************/
75
76struct external_scnhdr
77{
78 char s_name[8]; /* section name */
79 char s_paddr[8]; /* physical address, aliased s_nlib */
80 char s_vaddr[8]; /* virtual address */
81 char s_size[8]; /* section size */
82 char s_scnptr[8]; /* file ptr to raw data for section */
83 char s_relptr[8]; /* file ptr to relocation */
84 char s_lnnoptr[8]; /* file ptr to line numbers */
85 char s_nreloc[4]; /* number of relocation entries */
86 char s_nlnno[4]; /* number of line number entries*/
87 char s_flags[4]; /* flags */
88 char s_pad[4]; /* padding */
89};
90
91#define SCNHDR struct external_scnhdr
92
93#define SCNHSZ 72
94
95/********************** LINE NUMBERS **********************/
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. */
101
102struct external_lineno
103{
104 union
105 {
106 char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
107 char l_paddr[8]; /* (physical) address of line number */
108 } l_addr;
109
110 char l_lnno[4]; /* line number */
111};
112
113#define LINENO struct external_lineno
114
115#define LINESZ 12
116
117/********************** SYMBOLS **********************/
118
119#define E_SYMNMLEN 8 /* # characters in a symbol name */
120#define E_FILNMLEN 14 /* # characters in a file name */
121#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
122
123struct external_syment
124{
125 char e_value[8];
126 char e_offset[4];
127 char e_scnum[2];
128 char e_type[2];
129 char e_sclass[1];
130 char e_numaux[1];
131};
132
133#define N_BTMASK (017)
134#define N_TMASK (060)
135#define N_BTSHFT (4)
136#define N_TSHIFT (2)
137
138union external_auxent
139{
140 struct {
141 union {
142 struct {
143 char x_lnno[4]; /* declaration line number */
144 char x_size[2]; /* str/union/array size */
145 } x_lnsz;
146 struct {
147 char x_lnnoptr[8];/* ptr to fcn line */
148 char x_fsize[4]; /* size of function */
149 char x_endndx[4]; /* entry ndx past block end */
150 } x_fcn;
151 } x_fcnary;
152 } x_sym;
153
154 union {
155 char x_fname[E_FILNMLEN];
156 struct {
157 char x_zeroes[4];
158 char x_offset[4];
159 char x_pad[6];
160 unsigned char x_ftype[1];
161 unsigned char x_resv[2];
162 } x_n;
163 } x_file;
164
165 struct {
166 char x_exptr[8];
167 char x_fsize[4];
168 char x_endndx[4];
169 char x_pad[1];
170 } x_except;
171
172 struct {
173 unsigned char x_scnlen_lo[4];
174 unsigned char x_parmhash[4];
175 unsigned char x_snhash[2];
176 unsigned char x_smtyp[1];
177 unsigned char x_smclas[1];
178 unsigned char x_scnlen_hi[4];
179 unsigned char x_pad[1];
180 } x_csect;
181
182 struct {
183 char x_pad[17];
184 char x_auxtype[1];
185 } x_auxtype;
186};
187
188#define SYMENT struct external_syment
189#define SYMESZ 18
190#define AUXENT union external_auxent
191#define AUXESZ 18
192#define DBXMASK 0x80 /* for dbx storage mask */
193#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
194
195/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h. */
196#define _AUX_EXCEPT 255
197#define _AUX_FCN 254
198#define _AUX_SYM 253
199#define _AUX_FILE 252
200#define _AUX_CSECT 251
201
202/********************** RELOCATION DIRECTIVES **********************/
203
204struct external_reloc
205{
206 char r_vaddr[8];
207 char r_symndx[4];
208 char r_size[1];
209 char r_type[1];
210};
211
212#define RELOC struct external_reloc
213#define RELSZ 14
214
215#define DEFAULT_DATA_SECTION_ALIGNMENT 4
216#define DEFAULT_BSS_SECTION_ALIGNMENT 4
217#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
218/* For new sections we havn't heard of before */
219#define DEFAULT_SECTION_ALIGNMENT 4
220
221/* The ldhdr structure. This appears at the start of the .loader
222 section. */
223
224struct external_ldhdr
225{
226 bfd_byte l_version[4];
227 bfd_byte l_nsyms[4];
228 bfd_byte l_nreloc[4];
229 bfd_byte l_istlen[4];
230 bfd_byte l_nimpid[4];
231 bfd_byte l_stlen[4];
232 bfd_byte l_impoff[8];
233 bfd_byte l_stoff[8];
234 bfd_byte l_symoff[8];
235 bfd_byte l_rldoff[8];
236};
237#define LDHDRSZ (56)
238
239struct external_ldsym
240{
241 bfd_byte l_value[8];
242 bfd_byte l_offset[4];
243 bfd_byte l_scnum[2];
244 bfd_byte l_smtype[1];
245 bfd_byte l_smclas[1];
246 bfd_byte l_ifile[4];
247 bfd_byte l_parm[4];
248};
249
250#define LDSYMSZ (24)
251
252struct external_ldrel
253{
254 bfd_byte l_vaddr[8];
255 bfd_byte l_rtype[2];
256 bfd_byte l_rsecnm[2];
257 bfd_byte l_symndx[4];
258};
259
260#define LDRELSZ (16)
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