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0ee75d02 | 1 | /* BFD backend for SunOS binaries. |
6c97aedf | 2 | Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc. |
0ee75d02 | 3 | Written by Cygnus Support. |
4a81b561 | 4 | |
0ee75d02 | 5 | This file is part of BFD, the Binary File Descriptor library. |
4a81b561 | 6 | |
0ee75d02 | 7 | This program is free software; you can redistribute it and/or modify |
4a81b561 | 8 | it under the terms of the GNU General Public License as published by |
0ee75d02 ILT |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
4a81b561 | 11 | |
0ee75d02 | 12 | This program is distributed in the hope that it will be useful, |
4a81b561 DHW |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
0ee75d02 | 18 | along with this program; if not, write to the Free Software |
943fbd5b | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
4a81b561 | 20 | |
0ee75d02 ILT |
21 | #define TARGETNAME "a.out-sunos-big" |
22 | #define MY(OP) CAT(sunos_big_,OP) | |
4a81b561 | 23 | |
4a81b561 | 24 | #include "bfd.h" |
e85e8bfe ILT |
25 | #include "bfdlink.h" |
26 | #include "libaout.h" | |
78aa64b1 | 27 | |
0ee75d02 | 28 | /* Static routines defined in this file. */ |
4a81b561 | 29 | |
0ee75d02 | 30 | static boolean sunos_read_dynamic_info PARAMS ((bfd *)); |
e85e8bfe | 31 | static long sunos_get_dynamic_symtab_upper_bound PARAMS ((bfd *)); |
396aaeb2 | 32 | static boolean sunos_slurp_dynamic_symtab PARAMS ((bfd *)); |
e85e8bfe ILT |
33 | static long sunos_canonicalize_dynamic_symtab PARAMS ((bfd *, asymbol **)); |
34 | static long sunos_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); | |
35 | static long sunos_canonicalize_dynamic_reloc | |
36 | PARAMS ((bfd *, arelent **, asymbol **)); | |
37 | static struct bfd_hash_entry *sunos_link_hash_newfunc | |
38 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
39 | static struct bfd_link_hash_table *sunos_link_hash_table_create | |
40 | PARAMS ((bfd *)); | |
535c89f0 ILT |
41 | static boolean sunos_create_dynamic_sections |
42 | PARAMS ((bfd *, struct bfd_link_info *, boolean)); | |
e85e8bfe | 43 | static boolean sunos_add_dynamic_symbols |
396aaeb2 ILT |
44 | PARAMS ((bfd *, struct bfd_link_info *, struct external_nlist **, |
45 | bfd_size_type *, char **)); | |
e85e8bfe ILT |
46 | static boolean sunos_add_one_symbol |
47 | PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, asection *, | |
48 | bfd_vma, const char *, boolean, boolean, | |
49 | struct bfd_link_hash_entry **)); | |
50 | static boolean sunos_scan_relocs | |
51 | PARAMS ((struct bfd_link_info *, bfd *, asection *, bfd_size_type)); | |
52 | static boolean sunos_scan_std_relocs | |
53 | PARAMS ((struct bfd_link_info *, bfd *, asection *, | |
54 | const struct reloc_std_external *, bfd_size_type)); | |
55 | static boolean sunos_scan_ext_relocs | |
56 | PARAMS ((struct bfd_link_info *, bfd *, asection *, | |
57 | const struct reloc_ext_external *, bfd_size_type)); | |
58 | static boolean sunos_link_dynamic_object | |
59 | PARAMS ((struct bfd_link_info *, bfd *)); | |
60 | static boolean sunos_write_dynamic_symbol | |
61 | PARAMS ((bfd *, struct bfd_link_info *, struct aout_link_hash_entry *)); | |
62 | static boolean sunos_check_dynamic_reloc | |
63 | PARAMS ((struct bfd_link_info *, bfd *, asection *, | |
535c89f0 ILT |
64 | struct aout_link_hash_entry *, PTR, bfd_byte *, boolean *, |
65 | bfd_vma *)); | |
e85e8bfe ILT |
66 | static boolean sunos_finish_dynamic_link |
67 | PARAMS ((bfd *, struct bfd_link_info *)); | |
4a81b561 | 68 | |
e85e8bfe ILT |
69 | #define MY_get_dynamic_symtab_upper_bound sunos_get_dynamic_symtab_upper_bound |
70 | #define MY_canonicalize_dynamic_symtab sunos_canonicalize_dynamic_symtab | |
71 | #define MY_get_dynamic_reloc_upper_bound sunos_get_dynamic_reloc_upper_bound | |
72 | #define MY_canonicalize_dynamic_reloc sunos_canonicalize_dynamic_reloc | |
73 | #define MY_bfd_link_hash_table_create sunos_link_hash_table_create | |
74 | #define MY_add_dynamic_symbols sunos_add_dynamic_symbols | |
75 | #define MY_add_one_symbol sunos_add_one_symbol | |
76 | #define MY_link_dynamic_object sunos_link_dynamic_object | |
77 | #define MY_write_dynamic_symbol sunos_write_dynamic_symbol | |
78 | #define MY_check_dynamic_reloc sunos_check_dynamic_reloc | |
79 | #define MY_finish_dynamic_link sunos_finish_dynamic_link | |
4a81b561 | 80 | |
0ee75d02 ILT |
81 | /* Include the usual a.out support. */ |
82 | #include "aoutf1.h" | |
4a81b561 | 83 | |
0ee75d02 ILT |
84 | /* SunOS shared library support. We store a pointer to this structure |
85 | in obj_aout_dynamic_info (abfd). */ | |
4a81b561 | 86 | |
0ee75d02 | 87 | struct sunos_dynamic_info |
78aa64b1 | 88 | { |
0ee75d02 ILT |
89 | /* Whether we found any dynamic information. */ |
90 | boolean valid; | |
91 | /* Dynamic information. */ | |
92 | struct internal_sun4_dynamic_link dyninfo; | |
93 | /* Number of dynamic symbols. */ | |
ae115e51 | 94 | unsigned long dynsym_count; |
0ee75d02 ILT |
95 | /* Read in nlists for dynamic symbols. */ |
96 | struct external_nlist *dynsym; | |
e85e8bfe ILT |
97 | /* asymbol structures for dynamic symbols. */ |
98 | aout_symbol_type *canonical_dynsym; | |
0ee75d02 ILT |
99 | /* Read in dynamic string table. */ |
100 | char *dynstr; | |
101 | /* Number of dynamic relocs. */ | |
ae115e51 | 102 | unsigned long dynrel_count; |
0ee75d02 ILT |
103 | /* Read in dynamic relocs. This may be reloc_std_external or |
104 | reloc_ext_external. */ | |
105 | PTR dynrel; | |
e85e8bfe ILT |
106 | /* arelent structures for dynamic relocs. */ |
107 | arelent *canonical_dynrel; | |
0ee75d02 | 108 | }; |
4a81b561 | 109 | |
e85e8bfe ILT |
110 | /* The hash table of dynamic symbols is composed of two word entries. |
111 | See include/aout/sun4.h for details. */ | |
112 | ||
113 | #define HASH_ENTRY_SIZE (2 * BYTES_IN_WORD) | |
114 | ||
0ee75d02 ILT |
115 | /* Read in the basic dynamic information. This locates the __DYNAMIC |
116 | structure and uses it to find the dynamic_link structure. It | |
117 | creates and saves a sunos_dynamic_info structure. If it can't find | |
118 | __DYNAMIC, it sets the valid field of the sunos_dynamic_info | |
119 | structure to false to avoid doing this work again. */ | |
4a81b561 | 120 | |
0ee75d02 ILT |
121 | static boolean |
122 | sunos_read_dynamic_info (abfd) | |
4a81b561 DHW |
123 | bfd *abfd; |
124 | { | |
0ee75d02 | 125 | struct sunos_dynamic_info *info; |
0ee75d02 | 126 | asection *dynsec; |
ae115e51 | 127 | bfd_vma dynoff; |
0ee75d02 ILT |
128 | struct external_sun4_dynamic dyninfo; |
129 | unsigned long dynver; | |
130 | struct external_sun4_dynamic_link linkinfo; | |
131 | ||
132 | if (obj_aout_dynamic_info (abfd) != (PTR) NULL) | |
133 | return true; | |
134 | ||
e85e8bfe ILT |
135 | if ((abfd->flags & DYNAMIC) == 0) |
136 | { | |
137 | bfd_set_error (bfd_error_invalid_operation); | |
138 | return false; | |
139 | } | |
140 | ||
0ee75d02 ILT |
141 | info = ((struct sunos_dynamic_info *) |
142 | bfd_zalloc (abfd, sizeof (struct sunos_dynamic_info))); | |
9783e04a DM |
143 | if (!info) |
144 | { | |
d7fb4531 | 145 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
146 | return false; |
147 | } | |
0ee75d02 ILT |
148 | info->valid = false; |
149 | info->dynsym = NULL; | |
150 | info->dynstr = NULL; | |
e85e8bfe | 151 | info->canonical_dynsym = NULL; |
0ee75d02 | 152 | info->dynrel = NULL; |
e85e8bfe | 153 | info->canonical_dynrel = NULL; |
0ee75d02 ILT |
154 | obj_aout_dynamic_info (abfd) = (PTR) info; |
155 | ||
3e0b5554 PS |
156 | /* This code used to look for the __DYNAMIC symbol to locate the dynamic |
157 | linking information. | |
158 | However this inhibits recovering the dynamic symbols from a | |
159 | stripped object file, so blindly assume that the dynamic linking | |
160 | information is located at the start of the data section. | |
161 | We could verify this assumption later by looking through the dynamic | |
162 | symbols for the __DYNAMIC symbol. */ | |
163 | if ((abfd->flags & DYNAMIC) == 0) | |
0ee75d02 | 164 | return true; |
3e0b5554 PS |
165 | if (! bfd_get_section_contents (abfd, obj_datasec (abfd), (PTR) &dyninfo, |
166 | (file_ptr) 0, sizeof dyninfo)) | |
0ee75d02 ILT |
167 | return true; |
168 | ||
169 | dynver = GET_WORD (abfd, dyninfo.ld_version); | |
170 | if (dynver != 2 && dynver != 3) | |
171 | return true; | |
172 | ||
173 | dynoff = GET_WORD (abfd, dyninfo.ld); | |
174 | ||
175 | /* dynoff is a virtual address. It is probably always in the .data | |
176 | section, but this code should work even if it moves. */ | |
177 | if (dynoff < bfd_get_section_vma (abfd, obj_datasec (abfd))) | |
178 | dynsec = obj_textsec (abfd); | |
179 | else | |
180 | dynsec = obj_datasec (abfd); | |
181 | dynoff -= bfd_get_section_vma (abfd, dynsec); | |
ae115e51 | 182 | if (dynoff > bfd_section_size (abfd, dynsec)) |
0ee75d02 ILT |
183 | return true; |
184 | ||
185 | /* This executable appears to be dynamically linked in a way that we | |
186 | can understand. */ | |
187 | if (! bfd_get_section_contents (abfd, dynsec, (PTR) &linkinfo, dynoff, | |
188 | (bfd_size_type) sizeof linkinfo)) | |
189 | return true; | |
190 | ||
191 | /* Swap in the dynamic link information. */ | |
192 | info->dyninfo.ld_loaded = GET_WORD (abfd, linkinfo.ld_loaded); | |
193 | info->dyninfo.ld_need = GET_WORD (abfd, linkinfo.ld_need); | |
194 | info->dyninfo.ld_rules = GET_WORD (abfd, linkinfo.ld_rules); | |
195 | info->dyninfo.ld_got = GET_WORD (abfd, linkinfo.ld_got); | |
196 | info->dyninfo.ld_plt = GET_WORD (abfd, linkinfo.ld_plt); | |
197 | info->dyninfo.ld_rel = GET_WORD (abfd, linkinfo.ld_rel); | |
198 | info->dyninfo.ld_hash = GET_WORD (abfd, linkinfo.ld_hash); | |
199 | info->dyninfo.ld_stab = GET_WORD (abfd, linkinfo.ld_stab); | |
200 | info->dyninfo.ld_stab_hash = GET_WORD (abfd, linkinfo.ld_stab_hash); | |
201 | info->dyninfo.ld_buckets = GET_WORD (abfd, linkinfo.ld_buckets); | |
202 | info->dyninfo.ld_symbols = GET_WORD (abfd, linkinfo.ld_symbols); | |
203 | info->dyninfo.ld_symb_size = GET_WORD (abfd, linkinfo.ld_symb_size); | |
204 | info->dyninfo.ld_text = GET_WORD (abfd, linkinfo.ld_text); | |
205 | info->dyninfo.ld_plt_sz = GET_WORD (abfd, linkinfo.ld_plt_sz); | |
206 | ||
641ac26a ILT |
207 | /* Reportedly the addresses need to be offset by the size of the |
208 | exec header in an NMAGIC file. */ | |
209 | if (adata (abfd).magic == n_magic) | |
210 | { | |
211 | unsigned long exec_bytes_size = adata (abfd).exec_bytes_size; | |
212 | ||
213 | info->dyninfo.ld_need += exec_bytes_size; | |
214 | info->dyninfo.ld_rules += exec_bytes_size; | |
215 | info->dyninfo.ld_rel += exec_bytes_size; | |
216 | info->dyninfo.ld_hash += exec_bytes_size; | |
217 | info->dyninfo.ld_stab += exec_bytes_size; | |
218 | info->dyninfo.ld_symbols += exec_bytes_size; | |
219 | } | |
220 | ||
0ee75d02 ILT |
221 | /* The only way to get the size of the symbol information appears to |
222 | be to determine the distance between it and the string table. */ | |
223 | info->dynsym_count = ((info->dyninfo.ld_symbols - info->dyninfo.ld_stab) | |
224 | / EXTERNAL_NLIST_SIZE); | |
225 | BFD_ASSERT (info->dynsym_count * EXTERNAL_NLIST_SIZE | |
ae115e51 ILT |
226 | == (unsigned long) (info->dyninfo.ld_symbols |
227 | - info->dyninfo.ld_stab)); | |
0ee75d02 ILT |
228 | |
229 | /* Similarly, the relocs end at the hash table. */ | |
230 | info->dynrel_count = ((info->dyninfo.ld_hash - info->dyninfo.ld_rel) | |
231 | / obj_reloc_entry_size (abfd)); | |
232 | BFD_ASSERT (info->dynrel_count * obj_reloc_entry_size (abfd) | |
ae115e51 ILT |
233 | == (unsigned long) (info->dyninfo.ld_hash |
234 | - info->dyninfo.ld_rel)); | |
0ee75d02 ILT |
235 | |
236 | info->valid = true; | |
4a81b561 DHW |
237 | |
238 | return true; | |
239 | } | |
240 | ||
e85e8bfe ILT |
241 | /* Return the amount of memory required for the dynamic symbols. */ |
242 | ||
243 | static long | |
244 | sunos_get_dynamic_symtab_upper_bound (abfd) | |
245 | bfd *abfd; | |
246 | { | |
247 | struct sunos_dynamic_info *info; | |
248 | ||
249 | if (! sunos_read_dynamic_info (abfd)) | |
250 | return -1; | |
251 | ||
252 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
253 | if (! info->valid) | |
254 | { | |
255 | bfd_set_error (bfd_error_no_symbols); | |
256 | return -1; | |
257 | } | |
258 | ||
259 | return (info->dynsym_count + 1) * sizeof (asymbol *); | |
260 | } | |
261 | ||
396aaeb2 | 262 | /* Read the external dynamic symbols. */ |
4a81b561 | 263 | |
396aaeb2 ILT |
264 | static boolean |
265 | sunos_slurp_dynamic_symtab (abfd) | |
4a81b561 DHW |
266 | bfd *abfd; |
267 | { | |
0ee75d02 | 268 | struct sunos_dynamic_info *info; |
4a81b561 | 269 | |
e85e8bfe ILT |
270 | /* Get the general dynamic information. */ |
271 | if (obj_aout_dynamic_info (abfd) == NULL) | |
0ee75d02 ILT |
272 | { |
273 | if (! sunos_read_dynamic_info (abfd)) | |
396aaeb2 | 274 | return false; |
4a81b561 | 275 | } |
c93595dd | 276 | |
0ee75d02 | 277 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); |
e85e8bfe ILT |
278 | if (! info->valid) |
279 | { | |
280 | bfd_set_error (bfd_error_no_symbols); | |
396aaeb2 | 281 | return false; |
e85e8bfe | 282 | } |
10be52bf | 283 | |
e85e8bfe | 284 | /* Get the dynamic nlist structures. */ |
0ee75d02 ILT |
285 | if (info->dynsym == (struct external_nlist *) NULL) |
286 | { | |
287 | info->dynsym = ((struct external_nlist *) | |
288 | bfd_alloc (abfd, | |
289 | (info->dynsym_count | |
290 | * EXTERNAL_NLIST_SIZE))); | |
e85e8bfe | 291 | if (info->dynsym == NULL && info->dynsym_count != 0) |
9783e04a | 292 | { |
d7fb4531 | 293 | bfd_set_error (bfd_error_no_memory); |
396aaeb2 | 294 | return false; |
9783e04a | 295 | } |
0ee75d02 ILT |
296 | if (bfd_seek (abfd, info->dyninfo.ld_stab, SEEK_SET) != 0 |
297 | || (bfd_read ((PTR) info->dynsym, info->dynsym_count, | |
298 | EXTERNAL_NLIST_SIZE, abfd) | |
e85e8bfe ILT |
299 | != info->dynsym_count * EXTERNAL_NLIST_SIZE)) |
300 | { | |
301 | if (info->dynsym != NULL) | |
302 | { | |
303 | bfd_release (abfd, info->dynsym); | |
304 | info->dynsym = NULL; | |
305 | } | |
396aaeb2 | 306 | return false; |
e85e8bfe ILT |
307 | } |
308 | } | |
309 | ||
310 | /* Get the dynamic strings. */ | |
311 | if (info->dynstr == (char *) NULL) | |
312 | { | |
313 | info->dynstr = (char *) bfd_alloc (abfd, info->dyninfo.ld_symb_size); | |
314 | if (info->dynstr == NULL && info->dyninfo.ld_symb_size != 0) | |
315 | { | |
316 | bfd_set_error (bfd_error_no_memory); | |
396aaeb2 | 317 | return false; |
e85e8bfe ILT |
318 | } |
319 | if (bfd_seek (abfd, info->dyninfo.ld_symbols, SEEK_SET) != 0 | |
0ee75d02 ILT |
320 | || (bfd_read ((PTR) info->dynstr, 1, info->dyninfo.ld_symb_size, |
321 | abfd) | |
322 | != info->dyninfo.ld_symb_size)) | |
e85e8bfe ILT |
323 | { |
324 | if (info->dynstr != NULL) | |
325 | { | |
326 | bfd_release (abfd, info->dynstr); | |
327 | info->dynstr = NULL; | |
328 | } | |
396aaeb2 | 329 | return false; |
e85e8bfe | 330 | } |
0ee75d02 | 331 | } |
1a602d6e | 332 | |
396aaeb2 ILT |
333 | return true; |
334 | } | |
335 | ||
336 | /* Read in the dynamic symbols. */ | |
337 | ||
338 | static long | |
339 | sunos_canonicalize_dynamic_symtab (abfd, storage) | |
340 | bfd *abfd; | |
341 | asymbol **storage; | |
342 | { | |
343 | struct sunos_dynamic_info *info; | |
344 | unsigned long i; | |
345 | ||
346 | if (! sunos_slurp_dynamic_symtab (abfd)) | |
347 | return -1; | |
348 | ||
349 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
350 | ||
0ee75d02 ILT |
351 | #ifdef CHECK_DYNAMIC_HASH |
352 | /* Check my understanding of the dynamic hash table by making sure | |
353 | that each symbol can be located in the hash table. */ | |
354 | { | |
355 | bfd_size_type table_size; | |
356 | bfd_byte *table; | |
357 | bfd_size_type i; | |
358 | ||
359 | if (info->dyninfo.ld_buckets > info->dynsym_count) | |
360 | abort (); | |
361 | table_size = info->dyninfo.ld_stab - info->dyninfo.ld_hash; | |
d7fb4531 | 362 | table = (bfd_byte *) malloc (table_size); |
e85e8bfe | 363 | if (table == NULL && table_size != 0) |
d7fb4531 | 364 | abort (); |
0ee75d02 ILT |
365 | if (bfd_seek (abfd, info->dyninfo.ld_hash, SEEK_SET) != 0 |
366 | || bfd_read ((PTR) table, 1, table_size, abfd) != table_size) | |
367 | abort (); | |
368 | for (i = 0; i < info->dynsym_count; i++) | |
9846338e | 369 | { |
0ee75d02 ILT |
370 | unsigned char *name; |
371 | unsigned long hash; | |
372 | ||
373 | name = ((unsigned char *) info->dynstr | |
374 | + GET_WORD (abfd, info->dynsym[i].e_strx)); | |
375 | hash = 0; | |
376 | while (*name != '\0') | |
377 | hash = (hash << 1) + *name++; | |
378 | hash &= 0x7fffffff; | |
379 | hash %= info->dyninfo.ld_buckets; | |
e85e8bfe | 380 | while (GET_WORD (abfd, table + hash * HASH_ENTRY_SIZE) != i) |
0ee75d02 | 381 | { |
e85e8bfe ILT |
382 | hash = GET_WORD (abfd, |
383 | table + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD); | |
384 | if (hash == 0 || hash >= table_size / HASH_ENTRY_SIZE) | |
0ee75d02 ILT |
385 | abort (); |
386 | } | |
9846338e | 387 | } |
d7fb4531 | 388 | free (table); |
4a81b561 | 389 | } |
0ee75d02 | 390 | #endif /* CHECK_DYNAMIC_HASH */ |
4a81b561 | 391 | |
e85e8bfe ILT |
392 | /* Get the asymbol structures corresponding to the dynamic nlist |
393 | structures. */ | |
394 | if (info->canonical_dynsym == (aout_symbol_type *) NULL) | |
395 | { | |
396 | info->canonical_dynsym = ((aout_symbol_type *) | |
397 | bfd_alloc (abfd, | |
398 | (info->dynsym_count | |
399 | * sizeof (aout_symbol_type)))); | |
400 | if (info->canonical_dynsym == NULL && info->dynsym_count != 0) | |
401 | { | |
402 | bfd_set_error (bfd_error_no_memory); | |
403 | return -1; | |
404 | } | |
405 | ||
406 | if (! aout_32_translate_symbol_table (abfd, info->canonical_dynsym, | |
407 | info->dynsym, info->dynsym_count, | |
408 | info->dynstr, | |
409 | info->dyninfo.ld_symb_size, | |
410 | true)) | |
411 | { | |
412 | if (info->canonical_dynsym != NULL) | |
413 | { | |
414 | bfd_release (abfd, info->canonical_dynsym); | |
415 | info->canonical_dynsym = NULL; | |
416 | } | |
417 | return -1; | |
418 | } | |
419 | } | |
420 | ||
421 | /* Return pointers to the dynamic asymbol structures. */ | |
422 | for (i = 0; i < info->dynsym_count; i++) | |
423 | *storage++ = (asymbol *) (info->canonical_dynsym + i); | |
424 | *storage = NULL; | |
425 | ||
0ee75d02 | 426 | return info->dynsym_count; |
4a81b561 | 427 | } |
4a81b561 | 428 | |
e85e8bfe ILT |
429 | /* Return the amount of memory required for the dynamic relocs. */ |
430 | ||
431 | static long | |
432 | sunos_get_dynamic_reloc_upper_bound (abfd) | |
433 | bfd *abfd; | |
434 | { | |
435 | struct sunos_dynamic_info *info; | |
436 | ||
437 | if (! sunos_read_dynamic_info (abfd)) | |
438 | return -1; | |
439 | ||
440 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
441 | if (! info->valid) | |
442 | { | |
443 | bfd_set_error (bfd_error_no_symbols); | |
444 | return -1; | |
445 | } | |
446 | ||
447 | return (info->dynrel_count + 1) * sizeof (arelent *); | |
448 | } | |
449 | ||
450 | /* Read in the dynamic relocs. */ | |
4a81b561 | 451 | |
e85e8bfe ILT |
452 | static long |
453 | sunos_canonicalize_dynamic_reloc (abfd, storage, syms) | |
4a81b561 | 454 | bfd *abfd; |
e85e8bfe ILT |
455 | arelent **storage; |
456 | asymbol **syms; | |
4a81b561 | 457 | { |
0ee75d02 | 458 | struct sunos_dynamic_info *info; |
ae115e51 | 459 | unsigned long i; |
4a81b561 | 460 | |
e85e8bfe | 461 | /* Get the general dynamic information. */ |
0ee75d02 ILT |
462 | if (obj_aout_dynamic_info (abfd) == (PTR) NULL) |
463 | { | |
464 | if (! sunos_read_dynamic_info (abfd)) | |
e85e8bfe | 465 | return -1; |
0ee75d02 | 466 | } |
4a81b561 | 467 | |
0ee75d02 | 468 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); |
e85e8bfe ILT |
469 | if (! info->valid) |
470 | { | |
471 | bfd_set_error (bfd_error_no_symbols); | |
472 | return -1; | |
473 | } | |
4a81b561 | 474 | |
e85e8bfe | 475 | /* Get the dynamic reloc information. */ |
9783e04a | 476 | if (info->dynrel == NULL) |
0ee75d02 ILT |
477 | { |
478 | info->dynrel = (PTR) bfd_alloc (abfd, | |
479 | (info->dynrel_count | |
480 | * obj_reloc_entry_size (abfd))); | |
e85e8bfe | 481 | if (info->dynrel == NULL && info->dynrel_count != 0) |
9783e04a | 482 | { |
d7fb4531 | 483 | bfd_set_error (bfd_error_no_memory); |
e85e8bfe | 484 | return -1; |
9783e04a | 485 | } |
0ee75d02 ILT |
486 | if (bfd_seek (abfd, info->dyninfo.ld_rel, SEEK_SET) != 0 |
487 | || (bfd_read ((PTR) info->dynrel, info->dynrel_count, | |
488 | obj_reloc_entry_size (abfd), abfd) | |
489 | != info->dynrel_count * obj_reloc_entry_size (abfd))) | |
e85e8bfe ILT |
490 | { |
491 | if (info->dynrel != NULL) | |
492 | { | |
493 | bfd_release (abfd, info->dynrel); | |
494 | info->dynrel = NULL; | |
495 | } | |
496 | return -1; | |
497 | } | |
498 | } | |
499 | ||
500 | /* Get the arelent structures corresponding to the dynamic reloc | |
501 | information. */ | |
502 | if (info->canonical_dynrel == (arelent *) NULL) | |
503 | { | |
504 | arelent *to; | |
505 | ||
506 | info->canonical_dynrel = ((arelent *) | |
507 | bfd_alloc (abfd, | |
508 | (info->dynrel_count | |
509 | * sizeof (arelent)))); | |
510 | if (info->canonical_dynrel == NULL && info->dynrel_count != 0) | |
511 | { | |
512 | bfd_set_error (bfd_error_no_memory); | |
513 | return -1; | |
514 | } | |
515 | ||
516 | to = info->canonical_dynrel; | |
517 | ||
518 | if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE) | |
519 | { | |
520 | register struct reloc_ext_external *p; | |
521 | struct reloc_ext_external *pend; | |
522 | ||
523 | p = (struct reloc_ext_external *) info->dynrel; | |
524 | pend = p + info->dynrel_count; | |
525 | for (; p < pend; p++, to++) | |
943fbd5b KR |
526 | NAME(aout,swap_ext_reloc_in) (abfd, p, to, syms, |
527 | info->dynsym_count); | |
e85e8bfe ILT |
528 | } |
529 | else | |
530 | { | |
531 | register struct reloc_std_external *p; | |
532 | struct reloc_std_external *pend; | |
533 | ||
534 | p = (struct reloc_std_external *) info->dynrel; | |
535 | pend = p + info->dynrel_count; | |
536 | for (; p < pend; p++, to++) | |
943fbd5b KR |
537 | NAME(aout,swap_std_reloc_in) (abfd, p, to, syms, |
538 | info->dynsym_count); | |
e85e8bfe | 539 | } |
0ee75d02 | 540 | } |
4a81b561 | 541 | |
e85e8bfe ILT |
542 | /* Return pointers to the dynamic arelent structures. */ |
543 | for (i = 0; i < info->dynrel_count; i++) | |
544 | *storage++ = info->canonical_dynrel + i; | |
545 | *storage = NULL; | |
4a81b561 | 546 | |
0ee75d02 | 547 | return info->dynrel_count; |
4a81b561 | 548 | } |
e85e8bfe ILT |
549 | \f |
550 | /* Code to handle linking of SunOS shared libraries. */ | |
551 | ||
552 | /* A SPARC procedure linkage table entry is 12 bytes. The first entry | |
553 | in the table is a jump which is filled in by the runtime linker. | |
554 | The remaining entries are branches back to the first entry, | |
555 | followed by an index into the relocation table encoded to look like | |
556 | a sethi of %g0. */ | |
557 | ||
558 | #define SPARC_PLT_ENTRY_SIZE (12) | |
559 | ||
04dc16b7 | 560 | static const bfd_byte sparc_plt_first_entry[SPARC_PLT_ENTRY_SIZE] = |
e85e8bfe ILT |
561 | { |
562 | /* sethi %hi(0),%g1; address filled in by runtime linker. */ | |
563 | 0x3, 0, 0, 0, | |
564 | /* jmp %g1; offset filled in by runtime linker. */ | |
565 | 0x81, 0xc0, 0x60, 0, | |
566 | /* nop */ | |
567 | 0x1, 0, 0, 0 | |
568 | }; | |
569 | ||
570 | /* save %sp, -96, %sp */ | |
571 | #define SPARC_PLT_ENTRY_WORD0 0x9de3bfa0 | |
572 | /* call; address filled in later. */ | |
573 | #define SPARC_PLT_ENTRY_WORD1 0x40000000 | |
574 | /* sethi; reloc index filled in later. */ | |
575 | #define SPARC_PLT_ENTRY_WORD2 0x01000000 | |
576 | ||
535c89f0 ILT |
577 | /* This sequence is used when for the jump table entry to a defined |
578 | symbol in a complete executable. It is used when linking PIC | |
579 | compiled code which is not being put into a shared library. */ | |
580 | /* sethi <address to be filled in later>, %g1 */ | |
581 | #define SPARC_PLT_PIC_WORD0 0x03000000 | |
582 | /* jmp %g1 + <address to be filled in later> */ | |
583 | #define SPARC_PLT_PIC_WORD1 0x81c06000 | |
584 | /* nop */ | |
585 | #define SPARC_PLT_PIC_WORD2 0x01000000 | |
586 | ||
e85e8bfe ILT |
587 | /* An m68k procedure linkage table entry is 8 bytes. The first entry |
588 | in the table is a jump which is filled in the by the runtime | |
589 | linker. The remaining entries are branches back to the first | |
590 | entry, followed by a two byte index into the relocation table. */ | |
591 | ||
592 | #define M68K_PLT_ENTRY_SIZE (8) | |
593 | ||
04dc16b7 | 594 | static const bfd_byte m68k_plt_first_entry[M68K_PLT_ENTRY_SIZE] = |
e85e8bfe ILT |
595 | { |
596 | /* jmps @# */ | |
597 | 0x4e, 0xf9, | |
598 | /* Filled in by runtime linker with a magic address. */ | |
599 | 0, 0, 0, 0, | |
600 | /* Not used? */ | |
601 | 0, 0 | |
602 | }; | |
603 | ||
604 | /* bsrl */ | |
605 | #define M68K_PLT_ENTRY_WORD0 (0x61ff) | |
606 | /* Remaining words filled in later. */ | |
607 | ||
608 | /* An entry in the SunOS linker hash table. */ | |
609 | ||
610 | struct sunos_link_hash_entry | |
611 | { | |
612 | struct aout_link_hash_entry root; | |
613 | ||
614 | /* If this is a dynamic symbol, this is its index into the dynamic | |
615 | symbol table. This is initialized to -1. As the linker looks at | |
616 | the input files, it changes this to -2 if it will be added to the | |
617 | dynamic symbol table. After all the input files have been seen, | |
618 | the linker will know whether to build a dynamic symbol table; if | |
619 | it does build one, this becomes the index into the table. */ | |
620 | long dynindx; | |
621 | ||
622 | /* If this is a dynamic symbol, this is the index of the name in the | |
623 | dynamic symbol string table. */ | |
624 | long dynstr_index; | |
625 | ||
535c89f0 ILT |
626 | /* The offset into the global offset table used for this symbol. If |
627 | the symbol does not require a GOT entry, this is 0. */ | |
628 | bfd_vma got_offset; | |
629 | ||
630 | /* The offset into the procedure linkage table used for this symbol. | |
631 | If the symbol does not require a PLT entry, this is 0. */ | |
632 | bfd_vma plt_offset; | |
633 | ||
e85e8bfe ILT |
634 | /* Some linker flags. */ |
635 | unsigned char flags; | |
636 | /* Symbol is referenced by a regular object. */ | |
637 | #define SUNOS_REF_REGULAR 01 | |
638 | /* Symbol is defined by a regular object. */ | |
639 | #define SUNOS_DEF_REGULAR 02 | |
640 | /* Symbol is referenced by a dynamic object. */ | |
641 | #define SUNOS_REF_DYNAMIC 010 | |
642 | /* Symbol is defined by a dynamic object. */ | |
643 | #define SUNOS_DEF_DYNAMIC 020 | |
644 | }; | |
645 | ||
646 | /* The SunOS linker hash table. */ | |
647 | ||
648 | struct sunos_link_hash_table | |
649 | { | |
650 | struct aout_link_hash_table root; | |
651 | ||
535c89f0 | 652 | /* The object which holds the dynamic sections. */ |
e85e8bfe ILT |
653 | bfd *dynobj; |
654 | ||
535c89f0 ILT |
655 | /* Whether we have created the dynamic sections. */ |
656 | boolean dynamic_sections_created; | |
657 | ||
658 | /* Whether we need the dynamic sections. */ | |
659 | boolean dynamic_sections_needed; | |
660 | ||
e85e8bfe ILT |
661 | /* The number of dynamic symbols. */ |
662 | size_t dynsymcount; | |
663 | ||
664 | /* The number of buckets in the hash table. */ | |
665 | size_t bucketcount; | |
666 | }; | |
667 | ||
668 | /* Routine to create an entry in an SunOS link hash table. */ | |
669 | ||
670 | static struct bfd_hash_entry * | |
671 | sunos_link_hash_newfunc (entry, table, string) | |
672 | struct bfd_hash_entry *entry; | |
673 | struct bfd_hash_table *table; | |
674 | const char *string; | |
675 | { | |
676 | struct sunos_link_hash_entry *ret = (struct sunos_link_hash_entry *) entry; | |
677 | ||
678 | /* Allocate the structure if it has not already been allocated by a | |
679 | subclass. */ | |
680 | if (ret == (struct sunos_link_hash_entry *) NULL) | |
681 | ret = ((struct sunos_link_hash_entry *) | |
682 | bfd_hash_allocate (table, sizeof (struct sunos_link_hash_entry))); | |
683 | if (ret == (struct sunos_link_hash_entry *) NULL) | |
684 | { | |
685 | bfd_set_error (bfd_error_no_memory); | |
686 | return (struct bfd_hash_entry *) ret; | |
687 | } | |
688 | ||
689 | /* Call the allocation method of the superclass. */ | |
690 | ret = ((struct sunos_link_hash_entry *) | |
691 | NAME(aout,link_hash_newfunc) ((struct bfd_hash_entry *) ret, | |
692 | table, string)); | |
693 | if (ret != NULL) | |
694 | { | |
695 | /* Set local fields. */ | |
696 | ret->dynindx = -1; | |
697 | ret->dynstr_index = -1; | |
535c89f0 ILT |
698 | ret->got_offset = 0; |
699 | ret->plt_offset = 0; | |
e85e8bfe ILT |
700 | ret->flags = 0; |
701 | } | |
702 | ||
703 | return (struct bfd_hash_entry *) ret; | |
704 | } | |
705 | ||
706 | /* Create a SunOS link hash table. */ | |
707 | ||
708 | static struct bfd_link_hash_table * | |
709 | sunos_link_hash_table_create (abfd) | |
710 | bfd *abfd; | |
711 | { | |
712 | struct sunos_link_hash_table *ret; | |
713 | ||
714 | ret = ((struct sunos_link_hash_table *) | |
535c89f0 | 715 | bfd_alloc (abfd, sizeof (struct sunos_link_hash_table))); |
e85e8bfe ILT |
716 | if (ret == (struct sunos_link_hash_table *) NULL) |
717 | { | |
718 | bfd_set_error (bfd_error_no_memory); | |
719 | return (struct bfd_link_hash_table *) NULL; | |
720 | } | |
721 | if (! NAME(aout,link_hash_table_init) (&ret->root, abfd, | |
722 | sunos_link_hash_newfunc)) | |
723 | { | |
724 | free (ret); | |
725 | return (struct bfd_link_hash_table *) NULL; | |
726 | } | |
727 | ||
728 | ret->dynobj = NULL; | |
535c89f0 ILT |
729 | ret->dynamic_sections_created = false; |
730 | ret->dynamic_sections_needed = false; | |
e85e8bfe ILT |
731 | ret->dynsymcount = 0; |
732 | ret->bucketcount = 0; | |
733 | ||
734 | return &ret->root.root; | |
735 | } | |
736 | ||
737 | /* Look up an entry in an SunOS link hash table. */ | |
738 | ||
739 | #define sunos_link_hash_lookup(table, string, create, copy, follow) \ | |
740 | ((struct sunos_link_hash_entry *) \ | |
741 | aout_link_hash_lookup (&(table)->root, (string), (create), (copy),\ | |
742 | (follow))) | |
743 | ||
744 | /* Traverse a SunOS link hash table. */ | |
745 | ||
746 | #define sunos_link_hash_traverse(table, func, info) \ | |
747 | (aout_link_hash_traverse \ | |
748 | (&(table)->root, \ | |
749 | (boolean (*) PARAMS ((struct aout_link_hash_entry *, PTR))) (func), \ | |
750 | (info))) | |
751 | ||
752 | /* Get the SunOS link hash table from the info structure. This is | |
753 | just a cast. */ | |
754 | ||
755 | #define sunos_hash_table(p) ((struct sunos_link_hash_table *) ((p)->hash)) | |
756 | ||
757 | static boolean sunos_scan_dynamic_symbol | |
758 | PARAMS ((struct sunos_link_hash_entry *, PTR)); | |
759 | ||
535c89f0 ILT |
760 | /* Create the dynamic sections needed if we are linking against a |
761 | dynamic object, or if we are linking PIC compiled code. ABFD is a | |
762 | bfd we can attach the dynamic sections to. The linker script will | |
763 | look for these special sections names and put them in the right | |
764 | place in the output file. See include/aout/sun4.h for more details | |
765 | of the dynamic linking information. */ | |
e85e8bfe ILT |
766 | |
767 | static boolean | |
535c89f0 | 768 | sunos_create_dynamic_sections (abfd, info, needed) |
e85e8bfe ILT |
769 | bfd *abfd; |
770 | struct bfd_link_info *info; | |
535c89f0 | 771 | boolean needed; |
e85e8bfe ILT |
772 | { |
773 | asection *s; | |
774 | ||
535c89f0 | 775 | if (! sunos_hash_table (info)->dynamic_sections_created) |
e85e8bfe ILT |
776 | { |
777 | flagword flags; | |
e85e8bfe ILT |
778 | |
779 | sunos_hash_table (info)->dynobj = abfd; | |
535c89f0 | 780 | |
e85e8bfe ILT |
781 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY; |
782 | ||
783 | /* The .dynamic section holds the basic dynamic information: the | |
784 | sun4_dynamic structure, the dynamic debugger information, and | |
785 | the sun4_dynamic_link structure. */ | |
786 | s = bfd_make_section (abfd, ".dynamic"); | |
787 | if (s == NULL | |
788 | || ! bfd_set_section_flags (abfd, s, flags) | |
789 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
e85e8bfe ILT |
790 | return false; |
791 | ||
535c89f0 ILT |
792 | /* The .got section holds the global offset table. The address |
793 | is put in the ld_got field. */ | |
e85e8bfe ILT |
794 | s = bfd_make_section (abfd, ".got"); |
795 | if (s == NULL | |
796 | || ! bfd_set_section_flags (abfd, s, flags) | |
797 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
798 | return false; | |
e85e8bfe ILT |
799 | |
800 | /* The .plt section holds the procedure linkage table. The | |
801 | address is put in the ld_plt field. */ | |
802 | s = bfd_make_section (abfd, ".plt"); | |
803 | if (s == NULL | |
804 | || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE) | |
805 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
806 | return false; | |
807 | ||
808 | /* The .dynrel section holds the dynamic relocs. The address is | |
809 | put in the ld_rel field. */ | |
810 | s = bfd_make_section (abfd, ".dynrel"); | |
811 | if (s == NULL | |
812 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
813 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
814 | return false; | |
815 | ||
816 | /* The .hash section holds the dynamic hash table. The address | |
817 | is put in the ld_hash field. */ | |
818 | s = bfd_make_section (abfd, ".hash"); | |
819 | if (s == NULL | |
820 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
821 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
822 | return false; | |
823 | ||
824 | /* The .dynsym section holds the dynamic symbols. The address | |
825 | is put in the ld_stab field. */ | |
826 | s = bfd_make_section (abfd, ".dynsym"); | |
827 | if (s == NULL | |
828 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
829 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
830 | return false; | |
831 | ||
832 | /* The .dynstr section holds the dynamic symbol string table. | |
833 | The address is put in the ld_symbols field. */ | |
834 | s = bfd_make_section (abfd, ".dynstr"); | |
835 | if (s == NULL | |
836 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
837 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
838 | return false; | |
535c89f0 ILT |
839 | |
840 | sunos_hash_table (info)->dynamic_sections_created = true; | |
841 | } | |
842 | ||
843 | if (needed && ! sunos_hash_table (info)->dynamic_sections_needed) | |
844 | { | |
845 | bfd *dynobj; | |
846 | ||
847 | dynobj = sunos_hash_table (info)->dynobj; | |
848 | ||
849 | s = bfd_get_section_by_name (dynobj, ".got"); | |
850 | s->_raw_size = BYTES_IN_WORD; | |
851 | ||
852 | sunos_hash_table (info)->dynamic_sections_needed = true; | |
853 | } | |
854 | ||
855 | return true; | |
856 | } | |
857 | ||
858 | /* Add dynamic symbols during a link. This is called by the a.out | |
859 | backend linker when it encounters an object with the DYNAMIC flag | |
860 | set. */ | |
861 | ||
862 | static boolean | |
396aaeb2 | 863 | sunos_add_dynamic_symbols (abfd, info, symsp, sym_countp, stringsp) |
535c89f0 ILT |
864 | bfd *abfd; |
865 | struct bfd_link_info *info; | |
396aaeb2 ILT |
866 | struct external_nlist **symsp; |
867 | bfd_size_type *sym_countp; | |
868 | char **stringsp; | |
535c89f0 ILT |
869 | { |
870 | asection *s; | |
871 | bfd *dynobj; | |
396aaeb2 | 872 | struct sunos_dynamic_info *dinfo; |
535c89f0 ILT |
873 | |
874 | /* We do not want to include the sections in a dynamic object in the | |
875 | output file. We hack by simply clobbering the list of sections | |
876 | in the BFD. This could be handled more cleanly by, say, a new | |
877 | section flag; the existing SEC_NEVER_LOAD flag is not the one we | |
878 | want, because that one still implies that the section takes up | |
879 | space in the output file. */ | |
880 | abfd->sections = NULL; | |
881 | ||
882 | /* The native linker seems to just ignore dynamic objects when -r is | |
883 | used. */ | |
884 | if (info->relocateable) | |
885 | return true; | |
886 | ||
887 | /* There's no hope of using a dynamic object which does not exactly | |
888 | match the format of the output file. */ | |
889 | if (info->hash->creator != abfd->xvec) | |
890 | { | |
891 | bfd_set_error (bfd_error_invalid_operation); | |
892 | return false; | |
893 | } | |
894 | ||
895 | /* Make sure we have all the required information. */ | |
896 | if (! sunos_create_dynamic_sections (abfd, info, true)) | |
897 | return false; | |
898 | ||
899 | /* Make sure we have a .need and a .rules sections. These are only | |
900 | needed if there really is a dynamic object in the link, so they | |
901 | are not added by sunos_create_dynamic_sections. */ | |
902 | dynobj = sunos_hash_table (info)->dynobj; | |
903 | if (bfd_get_section_by_name (dynobj, ".need") == NULL) | |
904 | { | |
905 | /* The .need section holds the list of names of shared objets | |
906 | which must be included at runtime. The address of this | |
907 | section is put in the ld_need field. */ | |
908 | s = bfd_make_section (dynobj, ".need"); | |
909 | if (s == NULL | |
910 | || ! bfd_set_section_flags (dynobj, s, | |
911 | (SEC_ALLOC | |
912 | | SEC_LOAD | |
913 | | SEC_HAS_CONTENTS | |
914 | | SEC_IN_MEMORY | |
915 | | SEC_READONLY)) | |
916 | || ! bfd_set_section_alignment (dynobj, s, 2)) | |
917 | return false; | |
918 | } | |
919 | ||
920 | if (bfd_get_section_by_name (dynobj, ".rules") == NULL) | |
921 | { | |
922 | /* The .rules section holds the path to search for shared | |
923 | objects. The address of this section is put in the ld_rules | |
924 | field. */ | |
925 | s = bfd_make_section (dynobj, ".rules"); | |
926 | if (s == NULL | |
927 | || ! bfd_set_section_flags (dynobj, s, | |
928 | (SEC_ALLOC | |
929 | | SEC_LOAD | |
930 | | SEC_HAS_CONTENTS | |
931 | | SEC_IN_MEMORY | |
932 | | SEC_READONLY)) | |
933 | || ! bfd_set_section_alignment (dynobj, s, 2)) | |
934 | return false; | |
e85e8bfe ILT |
935 | } |
936 | ||
396aaeb2 ILT |
937 | /* Pick up the dynamic symbols and return them to the caller. */ |
938 | if (! sunos_slurp_dynamic_symtab (abfd)) | |
939 | return false; | |
940 | ||
941 | dinfo = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
942 | *symsp = dinfo->dynsym; | |
943 | *sym_countp = dinfo->dynsym_count; | |
944 | *stringsp = dinfo->dynstr; | |
945 | ||
e85e8bfe ILT |
946 | return true; |
947 | } | |
948 | ||
949 | /* Function to add a single symbol to the linker hash table. This is | |
950 | a wrapper around _bfd_generic_link_add_one_symbol which handles the | |
951 | tweaking needed for dynamic linking support. */ | |
952 | ||
953 | static boolean | |
954 | sunos_add_one_symbol (info, abfd, name, flags, section, value, string, | |
955 | copy, collect, hashp) | |
956 | struct bfd_link_info *info; | |
957 | bfd *abfd; | |
958 | const char *name; | |
959 | flagword flags; | |
960 | asection *section; | |
961 | bfd_vma value; | |
962 | const char *string; | |
963 | boolean copy; | |
964 | boolean collect; | |
965 | struct bfd_link_hash_entry **hashp; | |
966 | { | |
967 | struct sunos_link_hash_entry *h; | |
968 | int new_flag; | |
969 | ||
535c89f0 ILT |
970 | if (! sunos_hash_table (info)->dynamic_sections_created) |
971 | { | |
972 | /* We must create the dynamic sections while reading the input | |
973 | files, even though at this point we don't know if any of the | |
974 | sections will be needed. This will ensure that the dynamic | |
975 | sections are mapped to the right output section. It does no | |
976 | harm to create these sections if they are not needed. */ | |
977 | if (! sunos_create_dynamic_sections (abfd, info, info->shared)) | |
978 | return false; | |
979 | } | |
980 | ||
e85e8bfe ILT |
981 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, true, copy, |
982 | false); | |
983 | if (h == NULL) | |
984 | return false; | |
985 | ||
986 | if (hashp != NULL) | |
987 | *hashp = (struct bfd_link_hash_entry *) h; | |
988 | ||
ec88c42e ILT |
989 | /* Treat a common symbol in a dynamic object as defined in the .bss |
990 | section of the dynamic object. We don't want to allocate space | |
991 | for it in our process image. */ | |
e85e8bfe | 992 | if ((abfd->flags & DYNAMIC) != 0 |
788d9436 | 993 | && bfd_is_com_section (section)) |
ec88c42e | 994 | section = obj_bsssec (abfd); |
e85e8bfe | 995 | |
788d9436 | 996 | if (! bfd_is_und_section (section) |
e85e8bfe | 997 | && h->root.root.type != bfd_link_hash_new |
6c97aedf ILT |
998 | && h->root.root.type != bfd_link_hash_undefined |
999 | && h->root.root.type != bfd_link_hash_defweak) | |
e85e8bfe ILT |
1000 | { |
1001 | /* We are defining the symbol, and it is already defined. This | |
1002 | is a potential multiple definition error. */ | |
1003 | if ((abfd->flags & DYNAMIC) != 0) | |
1004 | { | |
1005 | /* The definition we are adding is from a dynamic object. | |
1006 | We do not want this new definition to override the | |
1007 | existing definition, so we pretend it is just a | |
1008 | reference. */ | |
788d9436 | 1009 | section = bfd_und_section_ptr; |
e85e8bfe ILT |
1010 | } |
1011 | else if ((h->root.root.type == bfd_link_hash_defined | |
788d9436 | 1012 | && h->root.root.u.def.section->owner != NULL |
e85e8bfe ILT |
1013 | && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) |
1014 | || (h->root.root.type == bfd_link_hash_common | |
943fbd5b | 1015 | && ((h->root.root.u.c.p->section->owner->flags & DYNAMIC) |
e85e8bfe ILT |
1016 | != 0))) |
1017 | { | |
1018 | /* The existing definition is from a dynamic object. We | |
1019 | want to override it with the definition we just found. | |
1020 | Clobber the existing definition. */ | |
1021 | h->root.root.type = bfd_link_hash_new; | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | /* Do the usual procedure for adding a symbol. */ | |
1026 | if (! _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, | |
1027 | value, string, copy, collect, | |
1028 | hashp)) | |
1029 | return false; | |
1030 | ||
04dc16b7 | 1031 | if (abfd->xvec == info->hash->creator) |
e85e8bfe | 1032 | { |
04dc16b7 ILT |
1033 | /* Set a flag in the hash table entry indicating the type of |
1034 | reference or definition we just found. Keep a count of the | |
1035 | number of dynamic symbols we find. A dynamic symbol is one | |
1036 | which is referenced or defined by both a regular object and a | |
1037 | shared object. */ | |
1038 | if ((abfd->flags & DYNAMIC) == 0) | |
1039 | { | |
1040 | if (bfd_is_und_section (section)) | |
1041 | new_flag = SUNOS_REF_REGULAR; | |
1042 | else | |
1043 | new_flag = SUNOS_DEF_REGULAR; | |
1044 | } | |
e85e8bfe | 1045 | else |
04dc16b7 ILT |
1046 | { |
1047 | if (bfd_is_und_section (section)) | |
1048 | new_flag = SUNOS_REF_DYNAMIC; | |
1049 | else | |
1050 | new_flag = SUNOS_DEF_DYNAMIC; | |
1051 | } | |
1052 | h->flags |= new_flag; | |
e85e8bfe | 1053 | |
04dc16b7 ILT |
1054 | if (h->dynindx == -1 |
1055 | && (h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1056 | { | |
1057 | ++sunos_hash_table (info)->dynsymcount; | |
1058 | h->dynindx = -2; | |
1059 | } | |
e85e8bfe ILT |
1060 | } |
1061 | ||
1062 | return true; | |
1063 | } | |
1064 | ||
1065 | /* Record an assignment made to a symbol by a linker script. We need | |
1066 | this in case some dynamic object refers to this symbol. */ | |
1067 | ||
1068 | boolean | |
1069 | bfd_sunos_record_link_assignment (output_bfd, info, name) | |
1070 | bfd *output_bfd; | |
1071 | struct bfd_link_info *info; | |
1072 | const char *name; | |
1073 | { | |
1074 | struct sunos_link_hash_entry *h; | |
1075 | ||
1076 | /* This is called after we have examined all the input objects. If | |
1077 | the symbol does not exist, it merely means that no object refers | |
1078 | to it, and we can just ignore it at this point. */ | |
1079 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, | |
1080 | false, false, false); | |
1081 | if (h == NULL) | |
1082 | return true; | |
1083 | ||
1084 | h->flags |= SUNOS_DEF_REGULAR; | |
1085 | ||
1086 | if (h->dynindx == -1) | |
1087 | { | |
1088 | ++sunos_hash_table (info)->dynsymcount; | |
1089 | h->dynindx = -2; | |
1090 | } | |
1091 | ||
1092 | return true; | |
1093 | } | |
1094 | ||
1095 | /* Set up the sizes and contents of the dynamic sections created in | |
1096 | sunos_add_dynamic_symbols. This is called by the SunOS linker | |
1097 | emulation before_allocation routine. We must set the sizes of the | |
1098 | sections before the linker sets the addresses of the various | |
1099 | sections. This unfortunately requires reading all the relocs so | |
1100 | that we can work out which ones need to become dynamic relocs. If | |
1101 | info->keep_memory is true, we keep the relocs in memory; otherwise, | |
1102 | we discard them, and will read them again later. */ | |
1103 | ||
1104 | boolean | |
1105 | bfd_sunos_size_dynamic_sections (output_bfd, info, sdynptr, sneedptr, | |
1106 | srulesptr) | |
1107 | bfd *output_bfd; | |
1108 | struct bfd_link_info *info; | |
1109 | asection **sdynptr; | |
1110 | asection **sneedptr; | |
1111 | asection **srulesptr; | |
1112 | { | |
1113 | bfd *dynobj; | |
1114 | size_t dynsymcount; | |
535c89f0 | 1115 | struct sunos_link_hash_entry *h; |
e85e8bfe ILT |
1116 | asection *s; |
1117 | size_t bucketcount; | |
1118 | size_t hashalloc; | |
1119 | size_t i; | |
1120 | bfd *sub; | |
1121 | ||
1122 | *sdynptr = NULL; | |
1123 | *sneedptr = NULL; | |
1124 | *srulesptr = NULL; | |
1125 | ||
535c89f0 ILT |
1126 | /* Look through all the input BFD's and read their relocs. It would |
1127 | be better if we didn't have to do this, but there is no other way | |
1128 | to determine the number of dynamic relocs we need, and, more | |
1129 | importantly, there is no other way to know which symbols should | |
1130 | get an entry in the procedure linkage table. */ | |
1131 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
1132 | { | |
1133 | if ((sub->flags & DYNAMIC) == 0) | |
1134 | { | |
1135 | if (! sunos_scan_relocs (info, sub, obj_textsec (sub), | |
1136 | exec_hdr (sub)->a_trsize) | |
1137 | || ! sunos_scan_relocs (info, sub, obj_datasec (sub), | |
1138 | exec_hdr (sub)->a_drsize)) | |
1139 | return false; | |
1140 | } | |
1141 | } | |
1142 | ||
e85e8bfe ILT |
1143 | dynobj = sunos_hash_table (info)->dynobj; |
1144 | dynsymcount = sunos_hash_table (info)->dynsymcount; | |
1145 | ||
535c89f0 ILT |
1146 | /* If there were no dynamic objects in the link, and we don't need |
1147 | to build a global offset table, there is nothing to do here. */ | |
1148 | if (! sunos_hash_table (info)->dynamic_sections_needed) | |
e85e8bfe ILT |
1149 | return true; |
1150 | ||
535c89f0 ILT |
1151 | /* If __GLOBAL_OFFSET_TABLE_ was mentioned, define it. */ |
1152 | h = sunos_link_hash_lookup (sunos_hash_table (info), | |
1153 | "__GLOBAL_OFFSET_TABLE_", false, false, false); | |
1154 | if (h != NULL && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1155 | { | |
1156 | h->flags |= SUNOS_DEF_REGULAR; | |
1157 | if (h->dynindx == -1) | |
1158 | { | |
1159 | ++sunos_hash_table (info)->dynsymcount; | |
1160 | h->dynindx = -2; | |
1161 | } | |
1162 | h->root.root.type = bfd_link_hash_defined; | |
1163 | h->root.root.u.def.section = bfd_get_section_by_name (dynobj, ".got"); | |
1164 | h->root.root.u.def.value = 0; | |
1165 | } | |
1166 | ||
e85e8bfe ILT |
1167 | /* The .dynamic section is always the same size. */ |
1168 | s = bfd_get_section_by_name (dynobj, ".dynamic"); | |
1169 | BFD_ASSERT (s != NULL); | |
1170 | s->_raw_size = (sizeof (struct external_sun4_dynamic) | |
1171 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE | |
1172 | + sizeof (struct external_sun4_dynamic_link)); | |
1173 | ||
1174 | /* Set the size of the .dynsym and .hash sections. We counted the | |
1175 | number of dynamic symbols as we read the input files. We will | |
1176 | build the dynamic symbol table (.dynsym) and the hash table | |
1177 | (.hash) when we build the final symbol table, because until then | |
1178 | we do not know the correct value to give the symbols. We build | |
1179 | the dynamic symbol string table (.dynstr) in a traversal of the | |
1180 | symbol table using sunos_scan_dynamic_symbol. */ | |
1181 | s = bfd_get_section_by_name (dynobj, ".dynsym"); | |
1182 | BFD_ASSERT (s != NULL); | |
1183 | s->_raw_size = dynsymcount * sizeof (struct external_nlist); | |
1184 | s->contents = (bfd_byte *) bfd_alloc (output_bfd, s->_raw_size); | |
1185 | if (s->contents == NULL && s->_raw_size != 0) | |
1186 | { | |
1187 | bfd_set_error (bfd_error_no_memory); | |
1188 | return false; | |
1189 | } | |
1190 | ||
1191 | /* The number of buckets is just the number of symbols divided by | |
535c89f0 | 1192 | four. To compute the final size of the hash table, we must |
e85e8bfe ILT |
1193 | actually compute the hash table. Normally we need exactly as |
1194 | many entries in the hash table as there are dynamic symbols, but | |
1195 | if some of the buckets are not used we will need additional | |
535c89f0 | 1196 | entries. In the worst case, every symbol will hash to the same |
e85e8bfe ILT |
1197 | bucket, and we will need BUCKETCOUNT - 1 extra entries. */ |
1198 | if (dynsymcount >= 4) | |
1199 | bucketcount = dynsymcount / 4; | |
1200 | else if (dynsymcount > 0) | |
1201 | bucketcount = dynsymcount; | |
1202 | else | |
1203 | bucketcount = 1; | |
1204 | s = bfd_get_section_by_name (dynobj, ".hash"); | |
1205 | BFD_ASSERT (s != NULL); | |
1206 | hashalloc = (dynsymcount + bucketcount - 1) * HASH_ENTRY_SIZE; | |
a1ade84e | 1207 | s->contents = (bfd_byte *) bfd_alloc (dynobj, hashalloc); |
e85e8bfe ILT |
1208 | if (s->contents == NULL && dynsymcount > 0) |
1209 | { | |
1210 | bfd_set_error (bfd_error_no_memory); | |
1211 | return false; | |
1212 | } | |
1213 | memset (s->contents, 0, hashalloc); | |
1214 | for (i = 0; i < bucketcount; i++) | |
1215 | PUT_WORD (output_bfd, (bfd_vma) -1, s->contents + i * HASH_ENTRY_SIZE); | |
1216 | s->_raw_size = bucketcount * HASH_ENTRY_SIZE; | |
1217 | ||
1218 | sunos_hash_table (info)->bucketcount = bucketcount; | |
1219 | ||
e85e8bfe ILT |
1220 | /* Scan all the symbols, place them in the dynamic symbol table, and |
1221 | build the dynamic hash table. We reuse dynsymcount as a counter | |
1222 | for the number of symbols we have added so far. */ | |
1223 | sunos_hash_table (info)->dynsymcount = 0; | |
1224 | sunos_link_hash_traverse (sunos_hash_table (info), | |
1225 | sunos_scan_dynamic_symbol, | |
1226 | (PTR) info); | |
1227 | BFD_ASSERT (sunos_hash_table (info)->dynsymcount == dynsymcount); | |
1228 | ||
1229 | /* The SunOS native linker seems to align the total size of the | |
1230 | symbol strings to a multiple of 8. I don't know if this is | |
1231 | important, but it can't hurt much. */ | |
1232 | s = bfd_get_section_by_name (dynobj, ".dynstr"); | |
1233 | BFD_ASSERT (s != NULL); | |
1234 | if ((s->_raw_size & 7) != 0) | |
1235 | { | |
1236 | bfd_size_type add; | |
1237 | bfd_byte *contents; | |
1238 | ||
1239 | add = 8 - (s->_raw_size & 7); | |
535c89f0 ILT |
1240 | contents = (bfd_byte *) realloc (s->contents, |
1241 | (size_t) (s->_raw_size + add)); | |
e85e8bfe ILT |
1242 | if (contents == NULL) |
1243 | { | |
1244 | bfd_set_error (bfd_error_no_memory); | |
1245 | return false; | |
1246 | } | |
535c89f0 | 1247 | memset (contents + s->_raw_size, 0, (size_t) add); |
e85e8bfe ILT |
1248 | s->contents = contents; |
1249 | s->_raw_size += add; | |
1250 | } | |
1251 | ||
1252 | /* Now that we have worked out the sizes of the procedure linkage | |
1253 | table and the dynamic relocs, allocate storage for them. */ | |
1254 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
1255 | BFD_ASSERT (s != NULL); | |
1256 | if (s->_raw_size != 0) | |
1257 | { | |
a1ade84e | 1258 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); |
e85e8bfe ILT |
1259 | if (s->contents == NULL) |
1260 | { | |
1261 | bfd_set_error (bfd_error_no_memory); | |
1262 | return false; | |
1263 | } | |
1264 | ||
1265 | /* Fill in the first entry in the table. */ | |
1266 | switch (bfd_get_arch (dynobj)) | |
1267 | { | |
1268 | case bfd_arch_sparc: | |
1269 | memcpy (s->contents, sparc_plt_first_entry, SPARC_PLT_ENTRY_SIZE); | |
1270 | break; | |
1271 | ||
1272 | case bfd_arch_m68k: | |
1273 | memcpy (s->contents, m68k_plt_first_entry, M68K_PLT_ENTRY_SIZE); | |
1274 | break; | |
1275 | ||
1276 | default: | |
1277 | abort (); | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1282 | if (s->_raw_size != 0) | |
1283 | { | |
a1ade84e | 1284 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); |
e85e8bfe ILT |
1285 | if (s->contents == NULL) |
1286 | { | |
1287 | bfd_set_error (bfd_error_no_memory); | |
1288 | return false; | |
1289 | } | |
1290 | } | |
1291 | /* We use the reloc_count field to keep track of how many of the | |
1292 | relocs we have output so far. */ | |
1293 | s->reloc_count = 0; | |
1294 | ||
1295 | /* Make space for the global offset table. */ | |
1296 | s = bfd_get_section_by_name (dynobj, ".got"); | |
a1ade84e | 1297 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); |
e85e8bfe ILT |
1298 | if (s->contents == NULL) |
1299 | { | |
1300 | bfd_set_error (bfd_error_no_memory); | |
1301 | return false; | |
1302 | } | |
1303 | ||
1304 | *sdynptr = bfd_get_section_by_name (dynobj, ".dynamic"); | |
1305 | *sneedptr = bfd_get_section_by_name (dynobj, ".need"); | |
1306 | *srulesptr = bfd_get_section_by_name (dynobj, ".rules"); | |
1307 | ||
1308 | return true; | |
1309 | } | |
1310 | ||
1311 | /* Scan the relocs for an input section. */ | |
1312 | ||
1313 | static boolean | |
1314 | sunos_scan_relocs (info, abfd, sec, rel_size) | |
1315 | struct bfd_link_info *info; | |
1316 | bfd *abfd; | |
1317 | asection *sec; | |
1318 | bfd_size_type rel_size; | |
1319 | { | |
1320 | PTR relocs; | |
1321 | PTR free_relocs = NULL; | |
1322 | ||
1323 | if (rel_size == 0) | |
1324 | return true; | |
1325 | ||
1326 | if (! info->keep_memory) | |
535c89f0 | 1327 | relocs = free_relocs = malloc ((size_t) rel_size); |
e85e8bfe ILT |
1328 | else |
1329 | { | |
535c89f0 ILT |
1330 | struct aout_section_data_struct *n; |
1331 | ||
1332 | n = ((struct aout_section_data_struct *) | |
1333 | bfd_alloc (abfd, sizeof (struct aout_section_data_struct))); | |
1334 | if (n == NULL) | |
e85e8bfe ILT |
1335 | relocs = NULL; |
1336 | else | |
535c89f0 ILT |
1337 | { |
1338 | set_aout_section_data (sec, n); | |
1339 | relocs = malloc ((size_t) rel_size); | |
1340 | aout_section_data (sec)->relocs = relocs; | |
1341 | } | |
e85e8bfe ILT |
1342 | } |
1343 | if (relocs == NULL) | |
1344 | { | |
1345 | bfd_set_error (bfd_error_no_memory); | |
1346 | return false; | |
1347 | } | |
1348 | ||
1349 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
1350 | || bfd_read (relocs, 1, rel_size, abfd) != rel_size) | |
1351 | goto error_return; | |
1352 | ||
1353 | if (obj_reloc_entry_size (abfd) == RELOC_STD_SIZE) | |
1354 | { | |
1355 | if (! sunos_scan_std_relocs (info, abfd, sec, | |
1356 | (struct reloc_std_external *) relocs, | |
1357 | rel_size)) | |
1358 | goto error_return; | |
1359 | } | |
1360 | else | |
1361 | { | |
1362 | if (! sunos_scan_ext_relocs (info, abfd, sec, | |
1363 | (struct reloc_ext_external *) relocs, | |
1364 | rel_size)) | |
1365 | goto error_return; | |
1366 | } | |
1367 | ||
1368 | if (free_relocs != NULL) | |
1369 | free (free_relocs); | |
1370 | ||
1371 | return true; | |
1372 | ||
1373 | error_return: | |
1374 | if (free_relocs != NULL) | |
1375 | free (free_relocs); | |
1376 | return false; | |
1377 | } | |
1378 | ||
1379 | /* Scan the relocs for an input section using standard relocs. We | |
1380 | need to figure out what to do for each reloc against a dynamic | |
1381 | symbol. If the symbol is in the .text section, an entry is made in | |
1382 | the procedure linkage table. Note that this will do the wrong | |
1383 | thing if the symbol is actually data; I don't think the Sun 3 | |
1384 | native linker handles this case correctly either. If the symbol is | |
1385 | not in the .text section, we must preserve the reloc as a dynamic | |
1386 | reloc. FIXME: We should also handle the PIC relocs here by | |
1387 | building global offset table entries. */ | |
1388 | ||
1389 | static boolean | |
1390 | sunos_scan_std_relocs (info, abfd, sec, relocs, rel_size) | |
1391 | struct bfd_link_info *info; | |
1392 | bfd *abfd; | |
1393 | asection *sec; | |
1394 | const struct reloc_std_external *relocs; | |
1395 | bfd_size_type rel_size; | |
1396 | { | |
1397 | bfd *dynobj; | |
535c89f0 ILT |
1398 | asection *splt = NULL; |
1399 | asection *srel = NULL; | |
e85e8bfe ILT |
1400 | struct sunos_link_hash_entry **sym_hashes; |
1401 | const struct reloc_std_external *rel, *relend; | |
1402 | ||
1403 | /* We only know how to handle m68k plt entries. */ | |
1404 | if (bfd_get_arch (abfd) != bfd_arch_m68k) | |
1405 | { | |
1406 | bfd_set_error (bfd_error_invalid_target); | |
1407 | return false; | |
1408 | } | |
1409 | ||
535c89f0 ILT |
1410 | dynobj = NULL; |
1411 | ||
e85e8bfe ILT |
1412 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); |
1413 | ||
1414 | relend = relocs + rel_size / RELOC_STD_SIZE; | |
1415 | for (rel = relocs; rel < relend; rel++) | |
1416 | { | |
1417 | int r_index; | |
1418 | struct sunos_link_hash_entry *h; | |
1419 | ||
1420 | /* We only want relocs against external symbols. */ | |
1421 | if (abfd->xvec->header_byteorder_big_p) | |
1422 | { | |
1423 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG) == 0) | |
1424 | continue; | |
1425 | } | |
1426 | else | |
1427 | { | |
1428 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE) == 0) | |
1429 | continue; | |
1430 | } | |
1431 | ||
1432 | /* Get the symbol index. */ | |
1433 | if (abfd->xvec->header_byteorder_big_p) | |
535c89f0 ILT |
1434 | r_index = ((rel->r_index[0] << 16) |
1435 | | (rel->r_index[1] << 8) | |
1436 | | rel->r_index[2]); | |
e85e8bfe | 1437 | else |
535c89f0 ILT |
1438 | r_index = ((rel->r_index[2] << 16) |
1439 | | (rel->r_index[1] << 8) | |
1440 | | rel->r_index[0]); | |
e85e8bfe ILT |
1441 | |
1442 | /* Get the hash table entry. */ | |
1443 | h = sym_hashes[r_index]; | |
1444 | if (h == NULL) | |
1445 | { | |
1446 | /* This should not normally happen, but it will in any case | |
1447 | be caught in the relocation phase. */ | |
1448 | continue; | |
1449 | } | |
1450 | ||
1451 | /* At this point common symbols have already been allocated, so | |
1452 | we don't have to worry about them. We need to consider that | |
1453 | we may have already seen this symbol and marked it undefined; | |
6c97aedf | 1454 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC |
e85e8bfe ILT |
1455 | will be zero. */ |
1456 | if (h->root.root.type != bfd_link_hash_defined | |
6c97aedf | 1457 | && h->root.root.type != bfd_link_hash_defweak |
e85e8bfe ILT |
1458 | && h->root.root.type != bfd_link_hash_undefined) |
1459 | continue; | |
1460 | ||
1461 | if ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1462 | || (h->flags & SUNOS_DEF_REGULAR) != 0) | |
1463 | continue; | |
1464 | ||
535c89f0 ILT |
1465 | if (dynobj == NULL) |
1466 | { | |
1467 | if (! sunos_create_dynamic_sections (abfd, info, true)) | |
1468 | return false; | |
1469 | dynobj = sunos_hash_table (info)->dynobj; | |
1470 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1471 | srel = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1472 | BFD_ASSERT (splt != NULL && srel != NULL); | |
1473 | } | |
1474 | ||
e85e8bfe | 1475 | BFD_ASSERT ((h->flags & SUNOS_REF_REGULAR) != 0); |
b088e4b2 ILT |
1476 | BFD_ASSERT (h->plt_offset != 0 |
1477 | || ((h->root.root.type == bfd_link_hash_defined | |
1478 | || h->root.root.type == bfd_link_hash_defweak) | |
1479 | ? (h->root.root.u.def.section->owner->flags | |
1480 | & DYNAMIC) != 0 | |
1481 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
e85e8bfe ILT |
1482 | |
1483 | /* This reloc is against a symbol defined only by a dynamic | |
1484 | object. */ | |
1485 | ||
1486 | if (h->root.root.type == bfd_link_hash_undefined) | |
1487 | { | |
1488 | /* Presumably this symbol was marked as being undefined by | |
1489 | an earlier reloc. */ | |
1490 | srel->_raw_size += RELOC_STD_SIZE; | |
1491 | } | |
1492 | else if ((h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
1493 | { | |
1494 | bfd *sub; | |
1495 | ||
1496 | /* This reloc is not in the .text section. It must be | |
1497 | copied into the dynamic relocs. We mark the symbol as | |
1498 | being undefined. */ | |
1499 | srel->_raw_size += RELOC_STD_SIZE; | |
1500 | sub = h->root.root.u.def.section->owner; | |
1501 | h->root.root.type = bfd_link_hash_undefined; | |
1502 | h->root.root.u.undef.abfd = sub; | |
1503 | } | |
1504 | else | |
1505 | { | |
1506 | /* This symbol is in the .text section. We must give it an | |
1507 | entry in the procedure linkage table, if we have not | |
1508 | already done so. We change the definition of the symbol | |
1509 | to the .plt section; this will cause relocs against it to | |
1510 | be handled correctly. */ | |
535c89f0 | 1511 | if (h->plt_offset == 0) |
e85e8bfe ILT |
1512 | { |
1513 | if (splt->_raw_size == 0) | |
1514 | splt->_raw_size = M68K_PLT_ENTRY_SIZE; | |
535c89f0 ILT |
1515 | h->plt_offset = splt->_raw_size; |
1516 | ||
1517 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1518 | { | |
1519 | h->root.root.u.def.section = splt; | |
1520 | h->root.root.u.def.value = splt->_raw_size; | |
1521 | } | |
1522 | ||
e85e8bfe ILT |
1523 | splt->_raw_size += M68K_PLT_ENTRY_SIZE; |
1524 | ||
535c89f0 ILT |
1525 | /* We may also need a dynamic reloc entry. */ |
1526 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1527 | srel->_raw_size += RELOC_STD_SIZE; | |
e85e8bfe ILT |
1528 | } |
1529 | } | |
1530 | } | |
1531 | ||
1532 | return true; | |
1533 | } | |
1534 | ||
1535 | /* Scan the relocs for an input section using extended relocs. We | |
1536 | need to figure out what to do for each reloc against a dynamic | |
1537 | symbol. If the reloc is a WDISP30, and the symbol is in the .text | |
1538 | section, an entry is made in the procedure linkage table. | |
535c89f0 | 1539 | Otherwise, we must preserve the reloc as a dynamic reloc. */ |
e85e8bfe ILT |
1540 | |
1541 | static boolean | |
1542 | sunos_scan_ext_relocs (info, abfd, sec, relocs, rel_size) | |
1543 | struct bfd_link_info *info; | |
1544 | bfd *abfd; | |
1545 | asection *sec; | |
1546 | const struct reloc_ext_external *relocs; | |
1547 | bfd_size_type rel_size; | |
1548 | { | |
1549 | bfd *dynobj; | |
e85e8bfe ILT |
1550 | struct sunos_link_hash_entry **sym_hashes; |
1551 | const struct reloc_ext_external *rel, *relend; | |
535c89f0 ILT |
1552 | asection *splt = NULL; |
1553 | asection *sgot = NULL; | |
1554 | asection *srel = NULL; | |
e85e8bfe ILT |
1555 | |
1556 | /* We only know how to handle SPARC plt entries. */ | |
1557 | if (bfd_get_arch (abfd) != bfd_arch_sparc) | |
1558 | { | |
1559 | bfd_set_error (bfd_error_invalid_target); | |
1560 | return false; | |
1561 | } | |
1562 | ||
535c89f0 ILT |
1563 | dynobj = NULL; |
1564 | ||
e85e8bfe ILT |
1565 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); |
1566 | ||
1567 | relend = relocs + rel_size / RELOC_EXT_SIZE; | |
1568 | for (rel = relocs; rel < relend; rel++) | |
1569 | { | |
ae115e51 | 1570 | unsigned int r_index; |
535c89f0 | 1571 | int r_extern; |
e85e8bfe | 1572 | int r_type; |
535c89f0 | 1573 | struct sunos_link_hash_entry *h = NULL; |
e85e8bfe | 1574 | |
535c89f0 | 1575 | /* Swap in the reloc information. */ |
e85e8bfe ILT |
1576 | if (abfd->xvec->header_byteorder_big_p) |
1577 | { | |
535c89f0 ILT |
1578 | r_index = ((rel->r_index[0] << 16) |
1579 | | (rel->r_index[1] << 8) | |
1580 | | rel->r_index[2]); | |
1581 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG)); | |
1582 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
1583 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
e85e8bfe ILT |
1584 | } |
1585 | else | |
1586 | { | |
535c89f0 ILT |
1587 | r_index = ((rel->r_index[2] << 16) |
1588 | | (rel->r_index[1] << 8) | |
1589 | | rel->r_index[0]); | |
1590 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); | |
1591 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
1592 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
e85e8bfe ILT |
1593 | } |
1594 | ||
535c89f0 | 1595 | if (r_extern) |
e85e8bfe | 1596 | { |
535c89f0 ILT |
1597 | h = sym_hashes[r_index]; |
1598 | if (h == NULL) | |
1599 | { | |
1600 | /* This should not normally happen, but it will in any | |
1601 | case be caught in the relocation phase. */ | |
1602 | continue; | |
1603 | } | |
e85e8bfe ILT |
1604 | } |
1605 | else | |
1606 | { | |
535c89f0 ILT |
1607 | if (r_index >= bfd_get_symcount (abfd)) |
1608 | { | |
1609 | /* This is abnormal, but should be caught in the | |
1610 | relocation phase. */ | |
1611 | continue; | |
1612 | } | |
e85e8bfe ILT |
1613 | } |
1614 | ||
535c89f0 ILT |
1615 | /* If this is a base relative reloc, we need to make an entry in |
1616 | the .got section. */ | |
1617 | if (r_type == RELOC_BASE10 | |
1618 | || r_type == RELOC_BASE13 | |
1619 | || r_type == RELOC_BASE22) | |
e85e8bfe | 1620 | { |
535c89f0 ILT |
1621 | if (dynobj == NULL) |
1622 | { | |
1623 | if (! sunos_create_dynamic_sections (abfd, info, true)) | |
1624 | return false; | |
1625 | dynobj = sunos_hash_table (info)->dynobj; | |
1626 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1627 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1628 | srel = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1629 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); | |
1630 | } | |
1631 | ||
1632 | if (r_extern) | |
1633 | { | |
1634 | if (h->got_offset != 0) | |
1635 | continue; | |
1636 | ||
1637 | h->got_offset = sgot->_raw_size; | |
1638 | } | |
1639 | else | |
1640 | { | |
1641 | if (adata (abfd).local_got_offsets == NULL) | |
1642 | { | |
1643 | adata (abfd).local_got_offsets = | |
1644 | (bfd_vma *) bfd_zalloc (abfd, | |
1645 | (bfd_get_symcount (abfd) | |
1646 | * sizeof (bfd_vma))); | |
1647 | if (adata (abfd).local_got_offsets == NULL) | |
1648 | { | |
1649 | bfd_set_error (bfd_error_no_memory); | |
1650 | return false; | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | if (adata (abfd).local_got_offsets[r_index] != 0) | |
1655 | continue; | |
1656 | ||
1657 | adata (abfd).local_got_offsets[r_index] = sgot->_raw_size; | |
1658 | } | |
1659 | ||
1660 | sgot->_raw_size += BYTES_IN_WORD; | |
1661 | ||
1662 | /* If we are making a shared library, or if the symbol is | |
1663 | defined by a dynamic object, we will need a dynamic reloc | |
1664 | entry. */ | |
1665 | if (info->shared | |
1666 | || (h != NULL | |
1667 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1668 | && (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
1669 | srel->_raw_size += RELOC_EXT_SIZE; | |
1670 | ||
e85e8bfe ILT |
1671 | continue; |
1672 | } | |
1673 | ||
535c89f0 ILT |
1674 | /* Otherwise, we are only interested in relocs against symbols |
1675 | defined in dynamic objects but not in regular objects. We | |
1676 | only need to consider relocs against external symbols. */ | |
1677 | if (! r_extern) | |
1678 | continue; | |
1679 | ||
e85e8bfe ILT |
1680 | /* At this point common symbols have already been allocated, so |
1681 | we don't have to worry about them. We need to consider that | |
1682 | we may have already seen this symbol and marked it undefined; | |
535c89f0 | 1683 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC |
e85e8bfe ILT |
1684 | will be zero. */ |
1685 | if (h->root.root.type != bfd_link_hash_defined | |
6c97aedf | 1686 | && h->root.root.type != bfd_link_hash_defweak |
e85e8bfe ILT |
1687 | && h->root.root.type != bfd_link_hash_undefined) |
1688 | continue; | |
1689 | ||
535c89f0 ILT |
1690 | if (r_type != RELOC_JMP_TBL |
1691 | && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1692 | || (h->flags & SUNOS_DEF_REGULAR) != 0)) | |
e85e8bfe ILT |
1693 | continue; |
1694 | ||
535c89f0 ILT |
1695 | if (strcmp (h->root.root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0) |
1696 | continue; | |
1697 | ||
1698 | if (dynobj == NULL) | |
1699 | { | |
1700 | if (! sunos_create_dynamic_sections (abfd, info, true)) | |
1701 | return false; | |
1702 | dynobj = sunos_hash_table (info)->dynobj; | |
1703 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1704 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1705 | srel = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1706 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); | |
1707 | } | |
1708 | ||
1709 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1710 | || (h->flags & SUNOS_REF_REGULAR) != 0); | |
1711 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1712 | || h->plt_offset != 0 | |
1713 | || ((h->root.root.type == bfd_link_hash_defined | |
1714 | || h->root.root.type == bfd_link_hash_defweak) | |
1715 | ? (h->root.root.u.def.section->owner->flags | |
1716 | & DYNAMIC) != 0 | |
1717 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
e85e8bfe ILT |
1718 | |
1719 | /* This reloc is against a symbol defined only by a dynamic | |
535c89f0 | 1720 | object, or it is a jump table reloc from PIC compiled code. */ |
e85e8bfe ILT |
1721 | |
1722 | if (h->root.root.type == bfd_link_hash_undefined) | |
1723 | { | |
1724 | /* Presumably this symbol was marked as being undefined by | |
1725 | an earlier reloc. */ | |
1726 | srel->_raw_size += RELOC_EXT_SIZE; | |
1727 | } | |
1728 | else if ((h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
1729 | { | |
1730 | bfd *sub; | |
1731 | ||
1732 | /* This reloc is not in the .text section. It must be | |
1733 | copied into the dynamic relocs. We mark the symbol as | |
1734 | being undefined. */ | |
535c89f0 | 1735 | BFD_ASSERT (r_type != RELOC_JMP_TBL); |
e85e8bfe ILT |
1736 | srel->_raw_size += RELOC_EXT_SIZE; |
1737 | sub = h->root.root.u.def.section->owner; | |
1738 | h->root.root.type = bfd_link_hash_undefined; | |
1739 | h->root.root.u.undef.abfd = sub; | |
1740 | } | |
1741 | else | |
1742 | { | |
1743 | /* This symbol is in the .text section. We must give it an | |
1744 | entry in the procedure linkage table, if we have not | |
1745 | already done so. We change the definition of the symbol | |
1746 | to the .plt section; this will cause relocs against it to | |
1747 | be handled correctly. */ | |
535c89f0 | 1748 | if (h->plt_offset == 0) |
e85e8bfe ILT |
1749 | { |
1750 | if (splt->_raw_size == 0) | |
1751 | splt->_raw_size = SPARC_PLT_ENTRY_SIZE; | |
535c89f0 ILT |
1752 | h->plt_offset = splt->_raw_size; |
1753 | ||
1754 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1755 | { | |
1756 | h->root.root.u.def.section = splt; | |
1757 | h->root.root.u.def.value = splt->_raw_size; | |
1758 | } | |
1759 | ||
e85e8bfe ILT |
1760 | splt->_raw_size += SPARC_PLT_ENTRY_SIZE; |
1761 | ||
535c89f0 ILT |
1762 | /* We will also need a dynamic reloc entry, unless this |
1763 | is a JMP_TBL reloc produced by linking PIC compiled | |
1764 | code, and we are not making a shared library. */ | |
1765 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) | |
1766 | srel->_raw_size += RELOC_EXT_SIZE; | |
e85e8bfe ILT |
1767 | } |
1768 | } | |
1769 | } | |
1770 | ||
1771 | return true; | |
1772 | } | |
1773 | ||
1774 | /* Build the hash table of dynamic symbols, and to mark as written all | |
1775 | symbols from dynamic objects which we do not plan to write out. */ | |
1776 | ||
1777 | static boolean | |
1778 | sunos_scan_dynamic_symbol (h, data) | |
1779 | struct sunos_link_hash_entry *h; | |
1780 | PTR data; | |
1781 | { | |
1782 | struct bfd_link_info *info = (struct bfd_link_info *) data; | |
1783 | ||
1784 | /* Set the written flag for symbols we do not want to write out as | |
1785 | part of the regular symbol table. This is all symbols which are | |
1786 | not defined in a regular object file. For some reason symbols | |
1787 | which are referenced by a regular object and defined by a dynamic | |
1788 | object do not seem to show up in the regular symbol table. */ | |
1789 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
4298e311 | 1790 | h->root.written = true; |
e85e8bfe ILT |
1791 | |
1792 | /* If this symbol is defined by a dynamic object and referenced by a | |
1793 | regular object, see whether we gave it a reasonable value while | |
1794 | scanning the relocs. */ | |
1795 | ||
1796 | if ((h->flags & SUNOS_DEF_REGULAR) == 0 | |
1797 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1798 | && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1799 | { | |
6c97aedf ILT |
1800 | if ((h->root.root.type == bfd_link_hash_defined |
1801 | || h->root.root.type == bfd_link_hash_defweak) | |
e85e8bfe ILT |
1802 | && ((h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) |
1803 | && h->root.root.u.def.section->output_section == NULL) | |
1804 | { | |
1805 | bfd *sub; | |
1806 | ||
1807 | /* This symbol is currently defined in a dynamic section | |
1808 | which is not being put into the output file. This | |
1809 | implies that there is no reloc against the symbol. I'm | |
1810 | not sure why this case would ever occur. In any case, we | |
1811 | change the symbol to be undefined. */ | |
1812 | sub = h->root.root.u.def.section->owner; | |
1813 | h->root.root.type = bfd_link_hash_undefined; | |
1814 | h->root.root.u.undef.abfd = sub; | |
1815 | } | |
1816 | } | |
1817 | ||
1818 | /* If this symbol is defined or referenced by a regular file, add it | |
1819 | to the dynamic symbols. */ | |
1820 | if ((h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1821 | { | |
1822 | asection *s; | |
1823 | size_t len; | |
1824 | bfd_byte *contents; | |
1825 | unsigned char *name; | |
1826 | unsigned long hash; | |
1827 | bfd *dynobj; | |
1828 | ||
1829 | BFD_ASSERT (h->dynindx == -2); | |
1830 | ||
535c89f0 ILT |
1831 | dynobj = sunos_hash_table (info)->dynobj; |
1832 | ||
e85e8bfe ILT |
1833 | h->dynindx = sunos_hash_table (info)->dynsymcount; |
1834 | ++sunos_hash_table (info)->dynsymcount; | |
1835 | ||
1836 | len = strlen (h->root.root.root.string); | |
1837 | ||
1838 | /* We don't bother to construct a BFD hash table for the strings | |
1839 | which are the names of the dynamic symbols. Using a hash | |
1840 | table for the regular symbols is beneficial, because the | |
1841 | regular symbols includes the debugging symbols, which have | |
1842 | long names and are often duplicated in several object files. | |
1843 | There are no debugging symbols in the dynamic symbols. */ | |
535c89f0 | 1844 | s = bfd_get_section_by_name (dynobj, ".dynstr"); |
e85e8bfe ILT |
1845 | BFD_ASSERT (s != NULL); |
1846 | if (s->contents == NULL) | |
a1ade84e | 1847 | contents = (bfd_byte *) malloc (len + 1); |
e85e8bfe | 1848 | else |
535c89f0 ILT |
1849 | contents = (bfd_byte *) realloc (s->contents, |
1850 | (size_t) (s->_raw_size + len + 1)); | |
e85e8bfe ILT |
1851 | if (contents == NULL) |
1852 | { | |
1853 | bfd_set_error (bfd_error_no_memory); | |
1854 | return false; | |
1855 | } | |
1856 | s->contents = contents; | |
1857 | ||
1858 | h->dynstr_index = s->_raw_size; | |
1859 | strcpy (contents + s->_raw_size, h->root.root.root.string); | |
1860 | s->_raw_size += len + 1; | |
1861 | ||
1862 | /* Add it to the dynamic hash table. */ | |
1863 | name = (unsigned char *) h->root.root.root.string; | |
1864 | hash = 0; | |
1865 | while (*name != '\0') | |
1866 | hash = (hash << 1) + *name++; | |
1867 | hash &= 0x7fffffff; | |
1868 | hash %= sunos_hash_table (info)->bucketcount; | |
1869 | ||
e85e8bfe ILT |
1870 | s = bfd_get_section_by_name (dynobj, ".hash"); |
1871 | BFD_ASSERT (s != NULL); | |
1872 | ||
1873 | if (GET_SWORD (dynobj, s->contents + hash * HASH_ENTRY_SIZE) == -1) | |
1874 | PUT_WORD (dynobj, h->dynindx, s->contents + hash * HASH_ENTRY_SIZE); | |
1875 | else | |
1876 | { | |
1877 | bfd_vma next; | |
1878 | ||
1879 | next = GET_WORD (dynobj, | |
1880 | (s->contents | |
1881 | + hash * HASH_ENTRY_SIZE | |
1882 | + BYTES_IN_WORD)); | |
1883 | PUT_WORD (dynobj, s->_raw_size / HASH_ENTRY_SIZE, | |
1884 | s->contents + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD); | |
1885 | PUT_WORD (dynobj, h->dynindx, s->contents + s->_raw_size); | |
1886 | PUT_WORD (dynobj, next, s->contents + s->_raw_size + BYTES_IN_WORD); | |
1887 | s->_raw_size += HASH_ENTRY_SIZE; | |
1888 | } | |
1889 | } | |
1890 | ||
1891 | return true; | |
1892 | } | |
1893 | ||
1894 | /* Link a dynamic object. We actually don't have anything to do at | |
1895 | this point. This entry point exists to prevent the regular linker | |
1896 | code from doing anything with the object. */ | |
1897 | ||
1898 | /*ARGSUSED*/ | |
1899 | static boolean | |
1900 | sunos_link_dynamic_object (info, abfd) | |
1901 | struct bfd_link_info *info; | |
1902 | bfd *abfd; | |
1903 | { | |
1904 | return true; | |
1905 | } | |
1906 | ||
e85e8bfe ILT |
1907 | /* Write out a dynamic symbol. This is called by the final traversal |
1908 | over the symbol table. */ | |
1909 | ||
1910 | static boolean | |
1911 | sunos_write_dynamic_symbol (output_bfd, info, harg) | |
1912 | bfd *output_bfd; | |
1913 | struct bfd_link_info *info; | |
1914 | struct aout_link_hash_entry *harg; | |
1915 | { | |
1916 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
e85e8bfe ILT |
1917 | int type; |
1918 | bfd_vma val; | |
1919 | asection *s; | |
1920 | struct external_nlist *outsym; | |
1921 | ||
1922 | if (h->dynindx < 0) | |
1923 | return true; | |
1924 | ||
e85e8bfe ILT |
1925 | switch (h->root.root.type) |
1926 | { | |
1927 | default: | |
1928 | case bfd_link_hash_new: | |
1929 | abort (); | |
1930 | /* Avoid variable not initialized warnings. */ | |
1931 | return true; | |
1932 | case bfd_link_hash_undefined: | |
1933 | type = N_UNDF | N_EXT; | |
1934 | val = 0; | |
1935 | break; | |
1936 | case bfd_link_hash_defined: | |
6c97aedf | 1937 | case bfd_link_hash_defweak: |
e85e8bfe ILT |
1938 | { |
1939 | asection *sec; | |
1940 | asection *output_section; | |
1941 | ||
1942 | sec = h->root.root.u.def.section; | |
1943 | output_section = sec->output_section; | |
788d9436 | 1944 | BFD_ASSERT (bfd_is_abs_section (output_section) |
e85e8bfe | 1945 | || output_section->owner == output_bfd); |
535c89f0 ILT |
1946 | if (h->plt_offset != 0 |
1947 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
e85e8bfe | 1948 | { |
e85e8bfe ILT |
1949 | type = N_UNDF | N_EXT; |
1950 | val = 0; | |
1951 | } | |
1952 | else | |
1953 | { | |
1954 | if (output_section == obj_textsec (output_bfd)) | |
6c97aedf ILT |
1955 | type = (h->root.root.type == bfd_link_hash_defined |
1956 | ? N_TEXT | |
1957 | : N_WEAKT); | |
e85e8bfe | 1958 | else if (output_section == obj_datasec (output_bfd)) |
6c97aedf ILT |
1959 | type = (h->root.root.type == bfd_link_hash_defined |
1960 | ? N_DATA | |
1961 | : N_WEAKD); | |
e85e8bfe | 1962 | else if (output_section == obj_bsssec (output_bfd)) |
6c97aedf ILT |
1963 | type = (h->root.root.type == bfd_link_hash_defined |
1964 | ? N_BSS | |
1965 | : N_WEAKB); | |
e85e8bfe | 1966 | else |
6c97aedf ILT |
1967 | type = (h->root.root.type == bfd_link_hash_defined |
1968 | ? N_ABS | |
1969 | : N_WEAKA); | |
1970 | type |= N_EXT; | |
e85e8bfe ILT |
1971 | val = (h->root.root.u.def.value |
1972 | + output_section->vma | |
1973 | + sec->output_offset); | |
1974 | } | |
1975 | } | |
1976 | break; | |
1977 | case bfd_link_hash_common: | |
1978 | type = N_UNDF | N_EXT; | |
1979 | val = h->root.root.u.c.size; | |
1980 | break; | |
6c97aedf | 1981 | case bfd_link_hash_undefweak: |
4298e311 ILT |
1982 | type = N_WEAKU; |
1983 | val = 0; | |
1984 | break; | |
e85e8bfe ILT |
1985 | case bfd_link_hash_indirect: |
1986 | case bfd_link_hash_warning: | |
1987 | /* FIXME: Ignore these for now. The circumstances under which | |
1988 | they should be written out are not clear to me. */ | |
1989 | return true; | |
1990 | } | |
1991 | ||
1992 | s = bfd_get_section_by_name (sunos_hash_table (info)->dynobj, ".dynsym"); | |
1993 | BFD_ASSERT (s != NULL); | |
1994 | outsym = ((struct external_nlist *) | |
1995 | (s->contents + h->dynindx * EXTERNAL_NLIST_SIZE)); | |
1996 | ||
1997 | bfd_h_put_8 (output_bfd, type, outsym->e_type); | |
1998 | bfd_h_put_8 (output_bfd, 0, outsym->e_other); | |
1999 | ||
2000 | /* FIXME: The native linker doesn't use 0 for desc. It seems to use | |
2001 | one less than the desc value in the shared library, although that | |
2002 | seems unlikely. */ | |
2003 | bfd_h_put_16 (output_bfd, 0, outsym->e_desc); | |
2004 | ||
2005 | PUT_WORD (output_bfd, h->dynstr_index, outsym->e_strx); | |
2006 | PUT_WORD (output_bfd, val, outsym->e_value); | |
2007 | ||
2008 | /* If this symbol is in the procedure linkage table, fill in the | |
2009 | table entry. */ | |
535c89f0 | 2010 | if (h->plt_offset != 0) |
e85e8bfe | 2011 | { |
535c89f0 ILT |
2012 | bfd *dynobj; |
2013 | asection *splt; | |
e85e8bfe ILT |
2014 | bfd_byte *p; |
2015 | asection *s; | |
2016 | bfd_vma r_address; | |
2017 | ||
535c89f0 ILT |
2018 | dynobj = sunos_hash_table (info)->dynobj; |
2019 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2020 | p = splt->contents + h->plt_offset; | |
e85e8bfe | 2021 | |
535c89f0 | 2022 | s = bfd_get_section_by_name (dynobj, ".dynrel"); |
e85e8bfe | 2023 | |
cd779d01 ILT |
2024 | r_address = (h->root.root.u.def.section->output_section->vma |
2025 | + h->root.root.u.def.section->output_offset | |
2026 | + h->root.root.u.def.value); | |
2027 | ||
e85e8bfe ILT |
2028 | switch (bfd_get_arch (output_bfd)) |
2029 | { | |
2030 | case bfd_arch_sparc: | |
535c89f0 ILT |
2031 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) |
2032 | { | |
2033 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD0, p); | |
2034 | bfd_put_32 (output_bfd, | |
2035 | (SPARC_PLT_ENTRY_WORD1 | |
2036 | + (((- (h->plt_offset + 4) >> 2) | |
2037 | & 0x3fffffff))), | |
2038 | p + 4); | |
2039 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD2 + s->reloc_count, | |
2040 | p + 8); | |
2041 | } | |
2042 | else | |
2043 | { | |
2044 | bfd_vma val; | |
2045 | ||
2046 | val = (h->root.root.u.def.section->output_section->vma | |
2047 | + h->root.root.u.def.section->output_offset | |
2048 | + h->root.root.u.def.value); | |
2049 | bfd_put_32 (output_bfd, | |
2050 | SPARC_PLT_PIC_WORD0 + ((val >> 10) & 0x3fffff), | |
2051 | p); | |
2052 | bfd_put_32 (output_bfd, | |
2053 | SPARC_PLT_PIC_WORD1 + (val & 0x3ff), | |
2054 | p + 4); | |
2055 | bfd_put_32 (output_bfd, SPARC_PLT_PIC_WORD2, p + 8); | |
2056 | } | |
e85e8bfe ILT |
2057 | break; |
2058 | ||
2059 | case bfd_arch_m68k: | |
535c89f0 ILT |
2060 | if (! info->shared && (h->flags & SUNOS_DEF_REGULAR) != 0) |
2061 | abort (); | |
e85e8bfe | 2062 | bfd_put_16 (output_bfd, M68K_PLT_ENTRY_WORD0, p); |
535c89f0 | 2063 | bfd_put_32 (output_bfd, (- (h->plt_offset + 2)), p + 2); |
e85e8bfe | 2064 | bfd_put_16 (output_bfd, s->reloc_count, p + 6); |
cd779d01 | 2065 | r_address += 2; |
e85e8bfe ILT |
2066 | break; |
2067 | ||
2068 | default: | |
2069 | abort (); | |
2070 | } | |
2071 | ||
535c89f0 ILT |
2072 | /* We also need to add a jump table reloc, unless this is the |
2073 | result of a JMP_TBL reloc from PIC compiled code. */ | |
2074 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) | |
e85e8bfe | 2075 | { |
535c89f0 ILT |
2076 | p = s->contents + s->reloc_count * obj_reloc_entry_size (output_bfd); |
2077 | if (obj_reloc_entry_size (output_bfd) == RELOC_STD_SIZE) | |
e85e8bfe | 2078 | { |
535c89f0 ILT |
2079 | struct reloc_std_external *srel; |
2080 | ||
2081 | srel = (struct reloc_std_external *) p; | |
2082 | PUT_WORD (output_bfd, r_address, srel->r_address); | |
2083 | if (output_bfd->xvec->header_byteorder_big_p) | |
2084 | { | |
2085 | srel->r_index[0] = h->dynindx >> 16; | |
2086 | srel->r_index[1] = h->dynindx >> 8; | |
2087 | srel->r_index[2] = h->dynindx; | |
2088 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_BIG | |
2089 | | RELOC_STD_BITS_JMPTABLE_BIG); | |
2090 | } | |
2091 | else | |
2092 | { | |
2093 | srel->r_index[2] = h->dynindx >> 16; | |
2094 | srel->r_index[1] = h->dynindx >> 8; | |
2095 | srel->r_index[0] = h->dynindx; | |
2096 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_LITTLE | |
2097 | | RELOC_STD_BITS_JMPTABLE_LITTLE); | |
2098 | } | |
e85e8bfe ILT |
2099 | } |
2100 | else | |
2101 | { | |
535c89f0 ILT |
2102 | struct reloc_ext_external *erel; |
2103 | ||
2104 | erel = (struct reloc_ext_external *) p; | |
2105 | PUT_WORD (output_bfd, r_address, erel->r_address); | |
2106 | if (output_bfd->xvec->header_byteorder_big_p) | |
2107 | { | |
2108 | erel->r_index[0] = h->dynindx >> 16; | |
2109 | erel->r_index[1] = h->dynindx >> 8; | |
2110 | erel->r_index[2] = h->dynindx; | |
2111 | erel->r_type[0] = (RELOC_EXT_BITS_EXTERN_BIG | |
2112 | | (22 << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2113 | } | |
2114 | else | |
2115 | { | |
2116 | erel->r_index[2] = h->dynindx >> 16; | |
2117 | erel->r_index[1] = h->dynindx >> 8; | |
2118 | erel->r_index[0] = h->dynindx; | |
2119 | erel->r_type[0] = (RELOC_EXT_BITS_EXTERN_LITTLE | |
2120 | | (22 << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2121 | } | |
2122 | PUT_WORD (output_bfd, (bfd_vma) 0, erel->r_addend); | |
e85e8bfe | 2123 | } |
e85e8bfe | 2124 | |
535c89f0 | 2125 | ++s->reloc_count; |
e85e8bfe | 2126 | } |
e85e8bfe ILT |
2127 | } |
2128 | ||
2129 | return true; | |
2130 | } | |
2131 | ||
2132 | /* This is called for each reloc against an external symbol. If this | |
2133 | is a reloc which are are going to copy as a dynamic reloc, then | |
2134 | copy it over, and tell the caller to not bother processing this | |
2135 | reloc. */ | |
2136 | ||
2137 | /*ARGSUSED*/ | |
2138 | static boolean | |
535c89f0 ILT |
2139 | sunos_check_dynamic_reloc (info, input_bfd, input_section, harg, reloc, |
2140 | contents, skip, relocationp) | |
e85e8bfe ILT |
2141 | struct bfd_link_info *info; |
2142 | bfd *input_bfd; | |
2143 | asection *input_section; | |
2144 | struct aout_link_hash_entry *harg; | |
2145 | PTR reloc; | |
535c89f0 | 2146 | bfd_byte *contents; |
e85e8bfe | 2147 | boolean *skip; |
535c89f0 | 2148 | bfd_vma *relocationp; |
e85e8bfe ILT |
2149 | { |
2150 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
2151 | bfd *dynobj; | |
535c89f0 ILT |
2152 | boolean baserel; |
2153 | asection *s; | |
e85e8bfe ILT |
2154 | bfd_byte *p; |
2155 | ||
2156 | *skip = false; | |
2157 | ||
2158 | dynobj = sunos_hash_table (info)->dynobj; | |
2159 | ||
535c89f0 ILT |
2160 | if (h != NULL && h->plt_offset != 0) |
2161 | { | |
2162 | asection *splt; | |
2163 | ||
2164 | /* Redirect the relocation to the PLT entry. */ | |
2165 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2166 | *relocationp = (splt->output_section->vma | |
2167 | + splt->output_offset | |
2168 | + h->plt_offset); | |
2169 | } | |
2170 | ||
2171 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2172 | { | |
2173 | struct reloc_std_external *srel; | |
2174 | ||
2175 | srel = (struct reloc_std_external *) reloc; | |
2176 | if (input_bfd->xvec->header_byteorder_big_p) | |
2177 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG)); | |
2178 | else | |
2179 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE)); | |
2180 | } | |
2181 | else | |
2182 | { | |
2183 | struct reloc_ext_external *erel; | |
2184 | int r_type; | |
2185 | ||
2186 | erel = (struct reloc_ext_external *) reloc; | |
2187 | if (input_bfd->xvec->header_byteorder_big_p) | |
2188 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
2189 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
2190 | else | |
2191 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
2192 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
2193 | baserel = (r_type == RELOC_BASE10 | |
2194 | || r_type == RELOC_BASE13 | |
2195 | || r_type == RELOC_BASE22); | |
2196 | } | |
2197 | ||
2198 | if (baserel) | |
2199 | { | |
2200 | bfd_vma *got_offsetp; | |
2201 | asection *sgot; | |
2202 | ||
2203 | if (h != NULL) | |
2204 | got_offsetp = &h->got_offset; | |
2205 | else if (adata (input_bfd).local_got_offsets == NULL) | |
2206 | got_offsetp = NULL; | |
2207 | else | |
2208 | { | |
2209 | struct reloc_std_external *srel; | |
2210 | int r_index; | |
2211 | ||
2212 | srel = (struct reloc_std_external *) reloc; | |
2213 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2214 | { | |
2215 | if (input_bfd->xvec->header_byteorder_big_p) | |
2216 | r_index = ((srel->r_index[0] << 16) | |
2217 | | (srel->r_index[1] << 8) | |
2218 | | srel->r_index[2]); | |
2219 | else | |
2220 | r_index = ((srel->r_index[2] << 16) | |
2221 | | (srel->r_index[1] << 8) | |
2222 | | srel->r_index[0]); | |
2223 | } | |
2224 | else | |
2225 | { | |
2226 | struct reloc_ext_external *erel; | |
2227 | ||
2228 | erel = (struct reloc_ext_external *) reloc; | |
2229 | if (input_bfd->xvec->header_byteorder_big_p) | |
2230 | r_index = ((erel->r_index[0] << 16) | |
2231 | | (erel->r_index[1] << 8) | |
2232 | | erel->r_index[2]); | |
2233 | else | |
2234 | r_index = ((erel->r_index[2] << 16) | |
2235 | | (erel->r_index[1] << 8) | |
2236 | | erel->r_index[0]); | |
2237 | } | |
2238 | ||
2239 | got_offsetp = adata (input_bfd).local_got_offsets + r_index; | |
2240 | } | |
2241 | ||
2242 | BFD_ASSERT (got_offsetp != NULL && *got_offsetp != 0); | |
2243 | ||
2244 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2245 | ||
2246 | /* We set the least significant bit to indicate whether we have | |
2247 | already initialized the GOT entry. */ | |
2248 | if ((*got_offsetp & 1) == 0) | |
2249 | { | |
2250 | PUT_WORD (dynobj, *relocationp, sgot->contents + *got_offsetp); | |
2251 | ||
2252 | if (h != NULL | |
2253 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
2254 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
2255 | { | |
2256 | /* We need to create a GLOB_DAT reloc to tell the | |
2257 | dynamic linker to fill in this entry in the table. */ | |
2258 | ||
2259 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
2260 | BFD_ASSERT (s != NULL); | |
2261 | ||
2262 | p = (s->contents | |
2263 | + s->reloc_count * obj_reloc_entry_size (dynobj)); | |
2264 | ||
2265 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2266 | { | |
2267 | struct reloc_std_external *srel; | |
2268 | ||
2269 | srel = (struct reloc_std_external *) p; | |
2270 | PUT_WORD (dynobj, | |
2271 | (*got_offsetp | |
2272 | + sgot->output_section->vma | |
2273 | + sgot->output_offset), | |
2274 | srel->r_address); | |
2275 | if (dynobj->xvec->header_byteorder_big_p) | |
2276 | { | |
2277 | srel->r_index[0] = h->dynindx >> 16; | |
2278 | srel->r_index[1] = h->dynindx >> 8; | |
2279 | srel->r_index[2] = h->dynindx; | |
2280 | srel->r_type[0] = | |
2281 | (RELOC_STD_BITS_EXTERN_BIG | |
2282 | | RELOC_STD_BITS_BASEREL_BIG | |
2283 | | RELOC_STD_BITS_RELATIVE_BIG | |
2284 | | (2 << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
2285 | } | |
2286 | else | |
2287 | { | |
2288 | srel->r_index[2] = h->dynindx >> 16; | |
2289 | srel->r_index[1] = h->dynindx >> 8; | |
2290 | srel->r_index[0] = h->dynindx; | |
2291 | srel->r_type[0] = | |
2292 | (RELOC_STD_BITS_EXTERN_LITTLE | |
2293 | | RELOC_STD_BITS_BASEREL_LITTLE | |
2294 | | RELOC_STD_BITS_RELATIVE_LITTLE | |
2295 | | (2 << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
2296 | } | |
2297 | } | |
2298 | else | |
2299 | { | |
2300 | struct reloc_ext_external *erel; | |
2301 | ||
2302 | erel = (struct reloc_ext_external *) p; | |
2303 | PUT_WORD (dynobj, | |
2304 | (*got_offsetp | |
2305 | + sgot->output_section->vma | |
2306 | + sgot->output_offset), | |
2307 | erel->r_address); | |
2308 | if (dynobj->xvec->header_byteorder_big_p) | |
2309 | { | |
2310 | erel->r_index[0] = h->dynindx >> 16; | |
2311 | erel->r_index[1] = h->dynindx >> 8; | |
2312 | erel->r_index[2] = h->dynindx; | |
2313 | erel->r_type[0] = | |
2314 | (RELOC_EXT_BITS_EXTERN_BIG | |
2315 | | (RELOC_GLOB_DAT << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2316 | } | |
2317 | else | |
2318 | { | |
2319 | erel->r_index[2] = h->dynindx >> 16; | |
2320 | erel->r_index[1] = h->dynindx >> 8; | |
2321 | erel->r_index[0] = h->dynindx; | |
2322 | erel->r_type[0] = | |
2323 | (RELOC_EXT_BITS_EXTERN_LITTLE | |
2324 | | (RELOC_GLOB_DAT << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2325 | } | |
2326 | PUT_WORD (dynobj, 0, erel->r_addend); | |
2327 | } | |
2328 | ||
2329 | ++s->reloc_count; | |
2330 | } | |
2331 | ||
2332 | *got_offsetp |= 1; | |
2333 | } | |
2334 | ||
2335 | *relocationp = sgot->vma + (*got_offsetp &~ 1); | |
2336 | ||
2337 | /* There is nothing else to do for a base relative reloc. */ | |
2338 | return true; | |
2339 | } | |
2340 | ||
2341 | if (! sunos_hash_table (info)->dynamic_sections_needed | |
2342 | || h == NULL | |
e85e8bfe ILT |
2343 | || h->dynindx == -1 |
2344 | || h->root.root.type != bfd_link_hash_undefined | |
2345 | || (h->flags & SUNOS_DEF_REGULAR) != 0 | |
2346 | || (h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
2347 | || (h->root.root.u.undef.abfd->flags & DYNAMIC) == 0) | |
2348 | return true; | |
2349 | ||
535c89f0 | 2350 | /* It looks like this is a reloc we are supposed to copy. */ |
e85e8bfe | 2351 | |
535c89f0 ILT |
2352 | s = bfd_get_section_by_name (dynobj, ".dynrel"); |
2353 | BFD_ASSERT (s != NULL); | |
e85e8bfe | 2354 | |
535c89f0 | 2355 | p = s->contents + s->reloc_count * obj_reloc_entry_size (dynobj); |
e85e8bfe ILT |
2356 | |
2357 | /* Copy the reloc over. */ | |
2358 | memcpy (p, reloc, obj_reloc_entry_size (dynobj)); | |
2359 | ||
2360 | /* Adjust the address and symbol index. */ | |
2361 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2362 | { | |
2363 | struct reloc_std_external *srel; | |
2364 | ||
2365 | srel = (struct reloc_std_external *) p; | |
2366 | PUT_WORD (dynobj, | |
2367 | (GET_WORD (dynobj, srel->r_address) | |
2368 | + input_section->output_section->vma | |
2369 | + input_section->output_offset), | |
2370 | srel->r_address); | |
2371 | if (dynobj->xvec->header_byteorder_big_p) | |
2372 | { | |
2373 | srel->r_index[0] = h->dynindx >> 16; | |
2374 | srel->r_index[1] = h->dynindx >> 8; | |
2375 | srel->r_index[2] = h->dynindx; | |
2376 | } | |
2377 | else | |
2378 | { | |
2379 | srel->r_index[2] = h->dynindx >> 16; | |
2380 | srel->r_index[1] = h->dynindx >> 8; | |
2381 | srel->r_index[0] = h->dynindx; | |
2382 | } | |
2383 | } | |
2384 | else | |
2385 | { | |
2386 | struct reloc_ext_external *erel; | |
2387 | ||
2388 | erel = (struct reloc_ext_external *) p; | |
2389 | PUT_WORD (dynobj, | |
2390 | (GET_WORD (dynobj, erel->r_address) | |
2391 | + input_section->output_section->vma | |
2392 | + input_section->output_offset), | |
2393 | erel->r_address); | |
2394 | if (dynobj->xvec->header_byteorder_big_p) | |
2395 | { | |
2396 | erel->r_index[0] = h->dynindx >> 16; | |
2397 | erel->r_index[1] = h->dynindx >> 8; | |
2398 | erel->r_index[2] = h->dynindx; | |
2399 | } | |
2400 | else | |
2401 | { | |
2402 | erel->r_index[2] = h->dynindx >> 16; | |
2403 | erel->r_index[1] = h->dynindx >> 8; | |
2404 | erel->r_index[0] = h->dynindx; | |
2405 | } | |
2406 | } | |
2407 | ||
535c89f0 | 2408 | ++s->reloc_count; |
e85e8bfe ILT |
2409 | |
2410 | *skip = true; | |
2411 | ||
2412 | return true; | |
2413 | } | |
2414 | ||
2415 | /* Finish up the dynamic linking information. */ | |
2416 | ||
2417 | static boolean | |
2418 | sunos_finish_dynamic_link (abfd, info) | |
2419 | bfd *abfd; | |
2420 | struct bfd_link_info *info; | |
2421 | { | |
2422 | bfd *dynobj; | |
2423 | asection *o; | |
2424 | asection *s; | |
2425 | asection *sdyn; | |
2426 | struct external_sun4_dynamic esd; | |
2427 | struct external_sun4_dynamic_link esdl; | |
2428 | ||
535c89f0 | 2429 | if (! sunos_hash_table (info)->dynamic_sections_needed) |
e85e8bfe ILT |
2430 | return true; |
2431 | ||
535c89f0 ILT |
2432 | dynobj = sunos_hash_table (info)->dynobj; |
2433 | ||
e85e8bfe ILT |
2434 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
2435 | BFD_ASSERT (sdyn != NULL); | |
2436 | ||
2437 | /* Finish up the .need section. The linker emulation code filled it | |
2438 | in, but with offsets from the start of the section instead of | |
2439 | real addresses. Now that we know the section location, we can | |
2440 | fill in the final values. */ | |
2441 | s = bfd_get_section_by_name (dynobj, ".need"); | |
535c89f0 | 2442 | if (s != NULL && s->_raw_size != 0) |
e85e8bfe ILT |
2443 | { |
2444 | file_ptr filepos; | |
2445 | bfd_byte *p; | |
2446 | ||
2447 | filepos = s->output_section->filepos + s->output_offset; | |
2448 | p = s->contents; | |
2449 | while (1) | |
2450 | { | |
2451 | bfd_vma val; | |
2452 | ||
2453 | PUT_WORD (dynobj, GET_WORD (dynobj, p) + filepos, p); | |
2454 | val = GET_WORD (dynobj, p + 12); | |
2455 | if (val == 0) | |
2456 | break; | |
2457 | PUT_WORD (dynobj, val + filepos, p + 12); | |
2458 | p += 16; | |
2459 | } | |
2460 | } | |
2461 | ||
2462 | /* The first entry in the .got section is the address of the dynamic | |
2463 | information. */ | |
2464 | s = bfd_get_section_by_name (dynobj, ".got"); | |
2465 | BFD_ASSERT (s != NULL); | |
2466 | PUT_WORD (dynobj, sdyn->output_section->vma + sdyn->output_offset, | |
2467 | s->contents); | |
2468 | ||
2469 | for (o = dynobj->sections; o != NULL; o = o->next) | |
2470 | { | |
2471 | if ((o->flags & SEC_HAS_CONTENTS) != 0 | |
2472 | && o->contents != NULL) | |
2473 | { | |
2474 | BFD_ASSERT (o->output_section != NULL | |
2475 | && o->output_section->owner == abfd); | |
2476 | if (! bfd_set_section_contents (abfd, o->output_section, | |
2477 | o->contents, o->output_offset, | |
2478 | o->_raw_size)) | |
2479 | return false; | |
2480 | } | |
2481 | } | |
2482 | ||
2483 | /* Finish up the dynamic link information. */ | |
2484 | PUT_WORD (dynobj, (bfd_vma) 3, esd.ld_version); | |
2485 | PUT_WORD (dynobj, | |
2486 | sdyn->output_section->vma + sdyn->output_offset + sizeof esd, | |
2487 | esd.ldd); | |
2488 | PUT_WORD (dynobj, | |
2489 | (sdyn->output_section->vma | |
2490 | + sdyn->output_offset | |
2491 | + sizeof esd | |
2492 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE), | |
2493 | esd.ld); | |
2494 | ||
2495 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esd, | |
2496 | sdyn->output_offset, sizeof esd)) | |
2497 | return false; | |
2498 | ||
2499 | ||
2500 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_loaded); | |
2501 | ||
2502 | s = bfd_get_section_by_name (dynobj, ".need"); | |
535c89f0 | 2503 | if (s == NULL || s->_raw_size == 0) |
e85e8bfe ILT |
2504 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_need); |
2505 | else | |
2506 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2507 | esdl.ld_need); | |
2508 | ||
2509 | s = bfd_get_section_by_name (dynobj, ".rules"); | |
535c89f0 | 2510 | if (s == NULL || s->_raw_size == 0) |
e85e8bfe ILT |
2511 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_rules); |
2512 | else | |
2513 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2514 | esdl.ld_rules); | |
2515 | ||
2516 | s = bfd_get_section_by_name (dynobj, ".got"); | |
2517 | BFD_ASSERT (s != NULL); | |
2518 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, esdl.ld_got); | |
2519 | ||
2520 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
2521 | BFD_ASSERT (s != NULL); | |
2522 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, esdl.ld_plt); | |
2523 | PUT_WORD (dynobj, s->_raw_size, esdl.ld_plt_sz); | |
2524 | ||
2525 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
2526 | BFD_ASSERT (s != NULL); | |
2527 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) == s->_raw_size); | |
2528 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2529 | esdl.ld_rel); | |
2530 | ||
2531 | s = bfd_get_section_by_name (dynobj, ".hash"); | |
2532 | BFD_ASSERT (s != NULL); | |
2533 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2534 | esdl.ld_hash); | |
2535 | ||
2536 | s = bfd_get_section_by_name (dynobj, ".dynsym"); | |
2537 | BFD_ASSERT (s != NULL); | |
2538 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2539 | esdl.ld_stab); | |
2540 | ||
2541 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_stab_hash); | |
2542 | ||
2543 | PUT_WORD (dynobj, (bfd_vma) sunos_hash_table (info)->bucketcount, | |
2544 | esdl.ld_buckets); | |
2545 | ||
2546 | s = bfd_get_section_by_name (dynobj, ".dynstr"); | |
2547 | BFD_ASSERT (s != NULL); | |
2548 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2549 | esdl.ld_symbols); | |
2550 | PUT_WORD (dynobj, s->_raw_size, esdl.ld_symb_size); | |
2551 | ||
2552 | /* The size of the text area is the size of the .text section | |
2553 | rounded up to a page boundary. FIXME: Should the page size be | |
2554 | conditional on something? */ | |
2555 | PUT_WORD (dynobj, | |
2556 | BFD_ALIGN (obj_textsec (abfd)->_raw_size, 0x2000), | |
2557 | esdl.ld_text); | |
2558 | ||
2559 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esdl, | |
2560 | (sdyn->output_offset | |
2561 | + sizeof esd | |
2562 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE), | |
2563 | sizeof esdl)) | |
2564 | return false; | |
2565 | ||
2566 | abfd->flags |= DYNAMIC; | |
2567 | ||
2568 | return true; | |
2569 | } |