Commit | Line | Data |
---|---|---|
7f6d05e8 | 1 | /* IBM RS/6000 "XCOFF64" file definitions for BFD. |
3dd657b1 | 2 | Copyright (C) 2000 Free Software Foundation, Inc. |
4f1d9bd8 NC |
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 | |
3dd657b1 TR |
16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
17 | */ | |
18 | ||
19 | /********************** FILE HEADER **********************/ | |
20 | ||
21 | struct external_filehdr { | |
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 | }; | |
7f6d05e8 CP |
30 | |
31 | /* IBM RS/6000 */ | |
c6664dfb | 32 | #define U803XTOCMAGIC 0757 /* readonly text segments and TOC, XCOFF64 */ |
7f6d05e8 | 33 | |
c6664dfb | 34 | #define BADMAG(x) ((x).f_magic != U803XTOCMAGIC) |
7f6d05e8 | 35 | |
3dd657b1 TR |
36 | #define FILHDR struct external_filehdr |
37 | #define FILHSZ 24 | |
38 | ||
7f6d05e8 CP |
39 | /********************** AOUT "OPTIONAL HEADER" **********************/ |
40 | ||
3dd657b1 | 41 | |
7f6d05e8 CP |
42 | typedef struct |
43 | { | |
3dd657b1 TR |
44 | unsigned char magic[2]; /* type of file */ |
45 | unsigned char vstamp[2]; /* version stamp */ | |
46 | unsigned char o_debugger[4]; /* reserved */ | |
7f6d05e8 CP |
47 | unsigned char text_start[8]; /* base of text used for this file */ |
48 | unsigned char data_start[8]; /* base of data used for this file */ | |
49 | unsigned char o_toc[8]; /* address of TOC */ | |
3dd657b1 TR |
50 | unsigned char o_snentry[2]; /* section number of entry point */ |
51 | unsigned char o_sntext[2]; /* section number of .text section */ | |
52 | unsigned char o_sndata[2]; /* section number of .data section */ | |
53 | unsigned char o_sntoc[2]; /* section number of TOC */ | |
54 | unsigned char o_snloader[2]; /* section number of .loader section */ | |
55 | unsigned char o_snbss[2]; /* section number of .bss section */ | |
56 | unsigned char o_algntext[2]; /* .text alignment */ | |
57 | unsigned char o_algndata[2]; /* .data alignment */ | |
58 | unsigned char o_modtype[2]; /* module type (??) */ | |
59 | unsigned char o_cputype[2]; /* cpu type */ | |
60 | unsigned char o_resv2[4]; /* reserved */ | |
61 | unsigned char tsize[8]; /* text size bytes, padded to FW bdry */ | |
62 | unsigned char dsize[8]; /* initialized data " " */ | |
63 | unsigned char bsize[8]; /* uninitialized data " " */ | |
64 | unsigned char entry[8]; /* entry pt. */ | |
7f6d05e8 CP |
65 | unsigned char o_maxstack[8]; /* max stack size (??) */ |
66 | unsigned char o_maxdata[8]; /* max data size (??) */ | |
3dd657b1 | 67 | unsigned char o_resv3[16]; /* reserved */ |
7f6d05e8 CP |
68 | } |
69 | AOUTHDR; | |
70 | ||
c6664dfb | 71 | #define AOUTSZ 120 |
7f6d05e8 CP |
72 | #define SMALL_AOUTSZ (0) |
73 | #define AOUTHDRSZ 72 | |
74 | ||
3dd657b1 | 75 | /********************** SECTION HEADER **********************/ |
7f6d05e8 CP |
76 | |
77 | ||
3dd657b1 TR |
78 | struct external_scnhdr { |
79 | char s_name[8]; /* section name */ | |
7f6d05e8 CP |
80 | char s_paddr[8]; /* physical address, aliased s_nlib */ |
81 | char s_vaddr[8]; /* virtual address */ | |
82 | char s_size[8]; /* section size */ | |
83 | char s_scnptr[8]; /* file ptr to raw data for section */ | |
84 | char s_relptr[8]; /* file ptr to relocation */ | |
85 | char s_lnnoptr[8]; /* file ptr to line numbers */ | |
86 | char s_nreloc[4]; /* number of relocation entries */ | |
87 | char s_nlnno[4]; /* number of line number entries*/ | |
3dd657b1 TR |
88 | char s_flags[4]; /* flags */ |
89 | char s_pad[4]; /* padding */ | |
7f6d05e8 CP |
90 | }; |
91 | ||
7f6d05e8 CP |
92 | |
93 | #define SCNHDR struct external_scnhdr | |
94 | ||
95 | #define SCNHSZ 72 | |
96 | ||
7f6d05e8 CP |
97 | /********************** LINE NUMBERS **********************/ |
98 | ||
99 | /* 1 line number entry for every "breakpointable" source line in a section. | |
3dd657b1 TR |
100 | * Line numbers are grouped on a per function basis; first entry in a function |
101 | * grouping will have l_lnno = 0 and in place of physical address will be the | |
102 | * symbol table index of the function name. | |
103 | */ | |
104 | struct external_lineno { | |
105 | union { | |
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 | char l_lnno[4]; /* line number */ | |
4f1d9bd8 | 110 | }; |
7f6d05e8 | 111 | |
3dd657b1 | 112 | |
7f6d05e8 | 113 | #define LINENO struct external_lineno |
3dd657b1 | 114 | |
7f6d05e8 CP |
115 | #define LINESZ 12 |
116 | ||
117 | ||
3dd657b1 TR |
118 | /********************** SYMBOLS **********************/ |
119 | ||
120 | #define E_SYMNMLEN 8 /* # characters in a symbol name */ | |
121 | #define E_FILNMLEN 14 /* # characters in a file name */ | |
122 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ | |
123 | ||
124 | struct external_syment | |
7f6d05e8 | 125 | { |
3dd657b1 TR |
126 | char e_value[8]; |
127 | char e_offset[4]; | |
128 | char e_scnum[2]; | |
129 | char e_type[2]; | |
130 | char e_sclass[1]; | |
131 | char e_numaux[1]; | |
132 | }; | |
133 | ||
134 | ||
135 | ||
136 | #define N_BTMASK (017) | |
137 | #define N_TMASK (060) | |
138 | #define N_BTSHFT (4) | |
139 | #define N_TSHIFT (2) | |
140 | ||
141 | ||
142 | union external_auxent { | |
143 | ||
144 | struct { | |
145 | union { | |
146 | struct { | |
147 | char x_lnno[4]; /* declaration line number */ | |
148 | char x_size[2]; /* str/union/array size */ | |
149 | } x_lnsz; | |
150 | struct { | |
151 | char x_lnnoptr[8];/* ptr to fcn line */ | |
152 | char x_fsize[4]; /* size of function */ | |
153 | char x_endndx[4]; /* entry ndx past block end */ | |
154 | } x_fcn; | |
155 | } x_fcnary; | |
156 | } x_sym; | |
7f6d05e8 | 157 | |
3dd657b1 TR |
158 | union { |
159 | char x_fname[E_FILNMLEN]; | |
160 | struct { | |
161 | char x_zeroes[4]; | |
162 | char x_offset[4]; | |
163 | char x_pad[6]; | |
164 | unsigned char x_ftype[1]; | |
165 | unsigned char x_resv[2]; | |
166 | } x_n; | |
167 | } x_file; | |
168 | ||
169 | struct { | |
170 | char x_exptr[8]; | |
171 | char x_fsize[4]; | |
172 | char x_endndx[4]; | |
173 | char x_pad[1]; | |
174 | } x_except; | |
175 | ||
176 | struct { | |
177 | unsigned char x_scnlen_lo[4]; | |
178 | unsigned char x_parmhash[4]; | |
179 | unsigned char x_snhash[2]; | |
180 | unsigned char x_smtyp[1]; | |
181 | unsigned char x_smclas[1]; | |
182 | unsigned char x_scnlen_hi[4]; | |
183 | unsigned char x_pad[1]; | |
184 | } x_csect; | |
185 | ||
186 | struct { | |
187 | char x_pad[17]; | |
188 | char x_auxtype[1]; | |
189 | } x_auxtype; | |
7f6d05e8 CP |
190 | }; |
191 | ||
3dd657b1 TR |
192 | #define SYMENT struct external_syment |
193 | #define SYMESZ 18 | |
7f6d05e8 CP |
194 | #define AUXENT union external_auxent |
195 | #define AUXESZ 18 | |
196 | #define DBXMASK 0x80 /* for dbx storage mask */ | |
197 | #define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK) | |
198 | ||
199 | /* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h */ | |
200 | #define _AUX_EXCEPT 255 | |
201 | #define _AUX_FCN 254 | |
202 | #define _AUX_SYM 253 | |
203 | #define _AUX_FILE 252 | |
204 | #define _AUX_CSECT 251 | |
205 | ||
3dd657b1 TR |
206 | |
207 | ||
7f6d05e8 CP |
208 | /********************** RELOCATION DIRECTIVES **********************/ |
209 | ||
3dd657b1 TR |
210 | |
211 | struct external_reloc { | |
7f6d05e8 CP |
212 | char r_vaddr[8]; |
213 | char r_symndx[4]; | |
214 | char r_size[1]; | |
215 | char r_type[1]; | |
216 | }; | |
217 | ||
3dd657b1 | 218 | |
7f6d05e8 CP |
219 | #define RELOC struct external_reloc |
220 | #define RELSZ 14 | |
221 | ||
222 | #define DEFAULT_DATA_SECTION_ALIGNMENT 4 | |
223 | #define DEFAULT_BSS_SECTION_ALIGNMENT 4 | |
224 | #define DEFAULT_TEXT_SECTION_ALIGNMENT 4 | |
225 | /* For new sections we havn't heard of before */ | |
226 | #define DEFAULT_SECTION_ALIGNMENT 4 | |
3dd657b1 TR |
227 | |
228 | /* The ldhdr structure. This appears at the start of the .loader | |
229 | section. */ | |
230 | ||
231 | struct external_ldhdr | |
232 | { | |
233 | bfd_byte l_version[4]; | |
234 | bfd_byte l_nsyms[4]; | |
235 | bfd_byte l_nreloc[4]; | |
236 | bfd_byte l_istlen[4]; | |
237 | bfd_byte l_nimpid[4]; | |
238 | bfd_byte l_stlen[4]; | |
239 | bfd_byte l_impoff[8]; | |
240 | bfd_byte l_stoff[8]; | |
241 | bfd_byte l_symoff[8]; | |
242 | bfd_byte l_rldoff[8]; | |
243 | }; | |
244 | #define LDHDRSZ (56) | |
245 | ||
246 | struct external_ldsym | |
247 | { | |
248 | bfd_byte l_value[8]; | |
249 | bfd_byte l_offset[4]; | |
250 | bfd_byte l_scnum[2]; | |
251 | bfd_byte l_smtype[1]; | |
252 | bfd_byte l_smclas[1]; | |
253 | bfd_byte l_ifile[4]; | |
254 | bfd_byte l_parm[4]; | |
255 | }; | |
256 | ||
257 | #define LDSYMSZ (24) | |
258 | ||
259 | struct external_ldrel | |
260 | { | |
261 | bfd_byte l_vaddr[8]; | |
262 | bfd_byte l_rtype[2]; | |
263 | bfd_byte l_rsecnm[2]; | |
264 | bfd_byte l_symndx[4]; | |
265 | }; | |
266 | ||
267 | #define LDRELSZ (16) |