Commit | Line | Data |
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252b5132 | 1 | /* BFD backend for SunOS binaries. |
9553c638 | 2 | Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
116c20d2 | 3 | 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Cygnus Support. |
5 | ||
116c20d2 | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
116c20d2 NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
252b5132 | 12 | |
116c20d2 NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
116c20d2 NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
3e110533 | 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
252b5132 RH |
21 | |
22 | #define TARGETNAME "a.out-sunos-big" | |
e43d48cc AM |
23 | |
24 | /* Do not "beautify" the CONCAT* macro args. Traditional C will not | |
25 | remove whitespace added here, and thus will fail to concatenate | |
26 | the tokens. */ | |
27 | #define MY(OP) CONCAT2 (sunos_big_,OP) | |
252b5132 RH |
28 | |
29 | #include "bfd.h" | |
30 | #include "bfdlink.h" | |
31 | #include "libaout.h" | |
32 | ||
252b5132 RH |
33 | /* ??? Where should this go? */ |
34 | #define MACHTYPE_OK(mtype) \ | |
35 | (((mtype) == M_SPARC && bfd_lookup_arch (bfd_arch_sparc, 0) != NULL) \ | |
36 | || ((mtype) == M_SPARCLET \ | |
37 | && bfd_lookup_arch (bfd_arch_sparc, bfd_mach_sparc_sparclet) != NULL) \ | |
38 | || ((mtype) == M_SPARCLITE_LE \ | |
39 | && bfd_lookup_arch (bfd_arch_sparc, bfd_mach_sparc_sparclet) != NULL) \ | |
40 | || (((mtype) == M_UNKNOWN || (mtype) == M_68010 || (mtype) == M_68020) \ | |
41 | && bfd_lookup_arch (bfd_arch_m68k, 0) != NULL)) | |
42 | ||
116c20d2 NC |
43 | #define MY_get_dynamic_symtab_upper_bound sunos_get_dynamic_symtab_upper_bound |
44 | #define MY_canonicalize_dynamic_symtab sunos_canonicalize_dynamic_symtab | |
45 | #define MY_get_synthetic_symtab _bfd_nodynamic_get_synthetic_symtab | |
46 | #define MY_get_dynamic_reloc_upper_bound sunos_get_dynamic_reloc_upper_bound | |
47 | #define MY_canonicalize_dynamic_reloc sunos_canonicalize_dynamic_reloc | |
48 | #define MY_bfd_link_hash_table_create sunos_link_hash_table_create | |
49 | #define MY_add_dynamic_symbols sunos_add_dynamic_symbols | |
50 | #define MY_add_one_symbol sunos_add_one_symbol | |
51 | #define MY_link_dynamic_object sunos_link_dynamic_object | |
52 | #define MY_write_dynamic_symbol sunos_write_dynamic_symbol | |
53 | #define MY_check_dynamic_reloc sunos_check_dynamic_reloc | |
54 | #define MY_finish_dynamic_link sunos_finish_dynamic_link | |
55 | ||
56 | static bfd_boolean sunos_add_dynamic_symbols (bfd *, struct bfd_link_info *, struct external_nlist **, bfd_size_type *, char **); | |
57 | static bfd_boolean sunos_add_one_symbol (struct bfd_link_info *, bfd *, const char *, flagword, asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean, struct bfd_link_hash_entry **); | |
58 | static bfd_boolean sunos_link_dynamic_object (struct bfd_link_info *, bfd *); | |
59 | static bfd_boolean sunos_write_dynamic_symbol (bfd *, struct bfd_link_info *, struct aout_link_hash_entry *); | |
60 | static bfd_boolean sunos_check_dynamic_reloc (struct bfd_link_info *, bfd *, asection *, struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *, bfd_vma *); | |
61 | static bfd_boolean sunos_finish_dynamic_link (bfd *, struct bfd_link_info *); | |
62 | static struct bfd_link_hash_table *sunos_link_hash_table_create (bfd *); | |
63 | static long sunos_get_dynamic_symtab_upper_bound (bfd *); | |
64 | static long sunos_canonicalize_dynamic_symtab (bfd *, asymbol **); | |
65 | static long sunos_get_dynamic_reloc_upper_bound (bfd *); | |
66 | static long sunos_canonicalize_dynamic_reloc (bfd *, arelent **, asymbol **); | |
67 | ||
252b5132 RH |
68 | /* Include the usual a.out support. */ |
69 | #include "aoutf1.h" | |
70 | ||
71 | /* The SunOS 4.1.4 /usr/include/locale.h defines valid as a macro. */ | |
72 | #undef valid | |
73 | ||
74 | /* SunOS shared library support. We store a pointer to this structure | |
75 | in obj_aout_dynamic_info (abfd). */ | |
76 | ||
77 | struct sunos_dynamic_info | |
78 | { | |
79 | /* Whether we found any dynamic information. */ | |
b34976b6 | 80 | bfd_boolean valid; |
252b5132 RH |
81 | /* Dynamic information. */ |
82 | struct internal_sun4_dynamic_link dyninfo; | |
83 | /* Number of dynamic symbols. */ | |
84 | unsigned long dynsym_count; | |
85 | /* Read in nlists for dynamic symbols. */ | |
86 | struct external_nlist *dynsym; | |
87 | /* asymbol structures for dynamic symbols. */ | |
88 | aout_symbol_type *canonical_dynsym; | |
89 | /* Read in dynamic string table. */ | |
90 | char *dynstr; | |
91 | /* Number of dynamic relocs. */ | |
92 | unsigned long dynrel_count; | |
93 | /* Read in dynamic relocs. This may be reloc_std_external or | |
94 | reloc_ext_external. */ | |
116c20d2 | 95 | void * dynrel; |
252b5132 RH |
96 | /* arelent structures for dynamic relocs. */ |
97 | arelent *canonical_dynrel; | |
98 | }; | |
99 | ||
100 | /* The hash table of dynamic symbols is composed of two word entries. | |
101 | See include/aout/sun4.h for details. */ | |
102 | ||
103 | #define HASH_ENTRY_SIZE (2 * BYTES_IN_WORD) | |
104 | ||
105 | /* Read in the basic dynamic information. This locates the __DYNAMIC | |
106 | structure and uses it to find the dynamic_link structure. It | |
107 | creates and saves a sunos_dynamic_info structure. If it can't find | |
108 | __DYNAMIC, it sets the valid field of the sunos_dynamic_info | |
b34976b6 | 109 | structure to FALSE to avoid doing this work again. */ |
252b5132 | 110 | |
b34976b6 | 111 | static bfd_boolean |
116c20d2 | 112 | sunos_read_dynamic_info (bfd *abfd) |
252b5132 RH |
113 | { |
114 | struct sunos_dynamic_info *info; | |
115 | asection *dynsec; | |
116 | bfd_vma dynoff; | |
117 | struct external_sun4_dynamic dyninfo; | |
118 | unsigned long dynver; | |
119 | struct external_sun4_dynamic_link linkinfo; | |
dc810e39 | 120 | bfd_size_type amt; |
252b5132 | 121 | |
116c20d2 | 122 | if (obj_aout_dynamic_info (abfd) != NULL) |
b34976b6 | 123 | return TRUE; |
252b5132 RH |
124 | |
125 | if ((abfd->flags & DYNAMIC) == 0) | |
126 | { | |
127 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 128 | return FALSE; |
252b5132 RH |
129 | } |
130 | ||
dc810e39 | 131 | amt = sizeof (struct sunos_dynamic_info); |
116c20d2 | 132 | info = bfd_zalloc (abfd, amt); |
252b5132 | 133 | if (!info) |
b34976b6 AM |
134 | return FALSE; |
135 | info->valid = FALSE; | |
252b5132 RH |
136 | info->dynsym = NULL; |
137 | info->dynstr = NULL; | |
138 | info->canonical_dynsym = NULL; | |
139 | info->dynrel = NULL; | |
140 | info->canonical_dynrel = NULL; | |
116c20d2 | 141 | obj_aout_dynamic_info (abfd) = (void *) info; |
252b5132 RH |
142 | |
143 | /* This code used to look for the __DYNAMIC symbol to locate the dynamic | |
144 | linking information. | |
145 | However this inhibits recovering the dynamic symbols from a | |
146 | stripped object file, so blindly assume that the dynamic linking | |
147 | information is located at the start of the data section. | |
148 | We could verify this assumption later by looking through the dynamic | |
149 | symbols for the __DYNAMIC symbol. */ | |
150 | if ((abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 151 | return TRUE; |
116c20d2 | 152 | if (! bfd_get_section_contents (abfd, obj_datasec (abfd), (void *) &dyninfo, |
dc810e39 AM |
153 | (file_ptr) 0, |
154 | (bfd_size_type) sizeof dyninfo)) | |
b34976b6 | 155 | return TRUE; |
252b5132 RH |
156 | |
157 | dynver = GET_WORD (abfd, dyninfo.ld_version); | |
158 | if (dynver != 2 && dynver != 3) | |
b34976b6 | 159 | return TRUE; |
252b5132 RH |
160 | |
161 | dynoff = GET_WORD (abfd, dyninfo.ld); | |
162 | ||
163 | /* dynoff is a virtual address. It is probably always in the .data | |
164 | section, but this code should work even if it moves. */ | |
165 | if (dynoff < bfd_get_section_vma (abfd, obj_datasec (abfd))) | |
166 | dynsec = obj_textsec (abfd); | |
167 | else | |
168 | dynsec = obj_datasec (abfd); | |
169 | dynoff -= bfd_get_section_vma (abfd, dynsec); | |
eea6121a | 170 | if (dynoff > dynsec->size) |
b34976b6 | 171 | return TRUE; |
252b5132 RH |
172 | |
173 | /* This executable appears to be dynamically linked in a way that we | |
174 | can understand. */ | |
116c20d2 | 175 | if (! bfd_get_section_contents (abfd, dynsec, (void *) &linkinfo, |
dc810e39 | 176 | (file_ptr) dynoff, |
252b5132 | 177 | (bfd_size_type) sizeof linkinfo)) |
b34976b6 | 178 | return TRUE; |
252b5132 RH |
179 | |
180 | /* Swap in the dynamic link information. */ | |
181 | info->dyninfo.ld_loaded = GET_WORD (abfd, linkinfo.ld_loaded); | |
182 | info->dyninfo.ld_need = GET_WORD (abfd, linkinfo.ld_need); | |
183 | info->dyninfo.ld_rules = GET_WORD (abfd, linkinfo.ld_rules); | |
184 | info->dyninfo.ld_got = GET_WORD (abfd, linkinfo.ld_got); | |
185 | info->dyninfo.ld_plt = GET_WORD (abfd, linkinfo.ld_plt); | |
186 | info->dyninfo.ld_rel = GET_WORD (abfd, linkinfo.ld_rel); | |
187 | info->dyninfo.ld_hash = GET_WORD (abfd, linkinfo.ld_hash); | |
188 | info->dyninfo.ld_stab = GET_WORD (abfd, linkinfo.ld_stab); | |
189 | info->dyninfo.ld_stab_hash = GET_WORD (abfd, linkinfo.ld_stab_hash); | |
190 | info->dyninfo.ld_buckets = GET_WORD (abfd, linkinfo.ld_buckets); | |
191 | info->dyninfo.ld_symbols = GET_WORD (abfd, linkinfo.ld_symbols); | |
192 | info->dyninfo.ld_symb_size = GET_WORD (abfd, linkinfo.ld_symb_size); | |
193 | info->dyninfo.ld_text = GET_WORD (abfd, linkinfo.ld_text); | |
194 | info->dyninfo.ld_plt_sz = GET_WORD (abfd, linkinfo.ld_plt_sz); | |
195 | ||
196 | /* Reportedly the addresses need to be offset by the size of the | |
197 | exec header in an NMAGIC file. */ | |
198 | if (adata (abfd).magic == n_magic) | |
199 | { | |
200 | unsigned long exec_bytes_size = adata (abfd).exec_bytes_size; | |
201 | ||
202 | info->dyninfo.ld_need += exec_bytes_size; | |
203 | info->dyninfo.ld_rules += exec_bytes_size; | |
204 | info->dyninfo.ld_rel += exec_bytes_size; | |
205 | info->dyninfo.ld_hash += exec_bytes_size; | |
206 | info->dyninfo.ld_stab += exec_bytes_size; | |
207 | info->dyninfo.ld_symbols += exec_bytes_size; | |
208 | } | |
209 | ||
210 | /* The only way to get the size of the symbol information appears to | |
211 | be to determine the distance between it and the string table. */ | |
212 | info->dynsym_count = ((info->dyninfo.ld_symbols - info->dyninfo.ld_stab) | |
213 | / EXTERNAL_NLIST_SIZE); | |
214 | BFD_ASSERT (info->dynsym_count * EXTERNAL_NLIST_SIZE | |
215 | == (unsigned long) (info->dyninfo.ld_symbols | |
216 | - info->dyninfo.ld_stab)); | |
217 | ||
218 | /* Similarly, the relocs end at the hash table. */ | |
219 | info->dynrel_count = ((info->dyninfo.ld_hash - info->dyninfo.ld_rel) | |
220 | / obj_reloc_entry_size (abfd)); | |
221 | BFD_ASSERT (info->dynrel_count * obj_reloc_entry_size (abfd) | |
222 | == (unsigned long) (info->dyninfo.ld_hash | |
223 | - info->dyninfo.ld_rel)); | |
224 | ||
b34976b6 | 225 | info->valid = TRUE; |
252b5132 | 226 | |
b34976b6 | 227 | return TRUE; |
252b5132 RH |
228 | } |
229 | ||
230 | /* Return the amount of memory required for the dynamic symbols. */ | |
231 | ||
232 | static long | |
116c20d2 | 233 | sunos_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
234 | { |
235 | struct sunos_dynamic_info *info; | |
236 | ||
237 | if (! sunos_read_dynamic_info (abfd)) | |
238 | return -1; | |
239 | ||
240 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
241 | if (! info->valid) | |
242 | { | |
243 | bfd_set_error (bfd_error_no_symbols); | |
244 | return -1; | |
245 | } | |
246 | ||
247 | return (info->dynsym_count + 1) * sizeof (asymbol *); | |
248 | } | |
249 | ||
250 | /* Read the external dynamic symbols. */ | |
251 | ||
b34976b6 | 252 | static bfd_boolean |
116c20d2 | 253 | sunos_slurp_dynamic_symtab (bfd *abfd) |
252b5132 RH |
254 | { |
255 | struct sunos_dynamic_info *info; | |
dc810e39 | 256 | bfd_size_type amt; |
252b5132 RH |
257 | |
258 | /* Get the general dynamic information. */ | |
259 | if (obj_aout_dynamic_info (abfd) == NULL) | |
260 | { | |
261 | if (! sunos_read_dynamic_info (abfd)) | |
b34976b6 | 262 | return FALSE; |
252b5132 RH |
263 | } |
264 | ||
265 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
266 | if (! info->valid) | |
267 | { | |
268 | bfd_set_error (bfd_error_no_symbols); | |
b34976b6 | 269 | return FALSE; |
252b5132 RH |
270 | } |
271 | ||
272 | /* Get the dynamic nlist structures. */ | |
116c20d2 | 273 | if (info->dynsym == NULL) |
252b5132 | 274 | { |
dc810e39 | 275 | amt = (bfd_size_type) info->dynsym_count * EXTERNAL_NLIST_SIZE; |
116c20d2 | 276 | info->dynsym = bfd_alloc (abfd, amt); |
252b5132 | 277 | if (info->dynsym == NULL && info->dynsym_count != 0) |
b34976b6 | 278 | return FALSE; |
dc810e39 | 279 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_stab, SEEK_SET) != 0 |
116c20d2 | 280 | || bfd_bread ((void *) info->dynsym, amt, abfd) != amt) |
252b5132 RH |
281 | { |
282 | if (info->dynsym != NULL) | |
283 | { | |
284 | bfd_release (abfd, info->dynsym); | |
285 | info->dynsym = NULL; | |
286 | } | |
b34976b6 | 287 | return FALSE; |
252b5132 RH |
288 | } |
289 | } | |
290 | ||
291 | /* Get the dynamic strings. */ | |
116c20d2 | 292 | if (info->dynstr == NULL) |
252b5132 | 293 | { |
dc810e39 | 294 | amt = info->dyninfo.ld_symb_size; |
116c20d2 | 295 | info->dynstr = bfd_alloc (abfd, amt); |
252b5132 | 296 | if (info->dynstr == NULL && info->dyninfo.ld_symb_size != 0) |
b34976b6 | 297 | return FALSE; |
dc810e39 | 298 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_symbols, SEEK_SET) != 0 |
116c20d2 | 299 | || bfd_bread ((void *) info->dynstr, amt, abfd) != amt) |
252b5132 RH |
300 | { |
301 | if (info->dynstr != NULL) | |
302 | { | |
303 | bfd_release (abfd, info->dynstr); | |
304 | info->dynstr = NULL; | |
305 | } | |
b34976b6 | 306 | return FALSE; |
252b5132 RH |
307 | } |
308 | } | |
309 | ||
b34976b6 | 310 | return TRUE; |
252b5132 RH |
311 | } |
312 | ||
313 | /* Read in the dynamic symbols. */ | |
314 | ||
315 | static long | |
116c20d2 | 316 | sunos_canonicalize_dynamic_symtab (bfd *abfd, asymbol **storage) |
252b5132 RH |
317 | { |
318 | struct sunos_dynamic_info *info; | |
319 | unsigned long i; | |
320 | ||
321 | if (! sunos_slurp_dynamic_symtab (abfd)) | |
322 | return -1; | |
323 | ||
324 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
325 | ||
326 | #ifdef CHECK_DYNAMIC_HASH | |
327 | /* Check my understanding of the dynamic hash table by making sure | |
328 | that each symbol can be located in the hash table. */ | |
329 | { | |
330 | bfd_size_type table_size; | |
331 | bfd_byte *table; | |
332 | bfd_size_type i; | |
333 | ||
334 | if (info->dyninfo.ld_buckets > info->dynsym_count) | |
335 | abort (); | |
336 | table_size = info->dyninfo.ld_stab - info->dyninfo.ld_hash; | |
116c20d2 | 337 | table = bfd_malloc (table_size); |
252b5132 RH |
338 | if (table == NULL && table_size != 0) |
339 | abort (); | |
dc810e39 | 340 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_hash, SEEK_SET) != 0 |
116c20d2 | 341 | || bfd_bread ((void *) table, table_size, abfd) != table_size) |
252b5132 RH |
342 | abort (); |
343 | for (i = 0; i < info->dynsym_count; i++) | |
344 | { | |
345 | unsigned char *name; | |
346 | unsigned long hash; | |
347 | ||
348 | name = ((unsigned char *) info->dynstr | |
349 | + GET_WORD (abfd, info->dynsym[i].e_strx)); | |
350 | hash = 0; | |
351 | while (*name != '\0') | |
352 | hash = (hash << 1) + *name++; | |
353 | hash &= 0x7fffffff; | |
354 | hash %= info->dyninfo.ld_buckets; | |
355 | while (GET_WORD (abfd, table + hash * HASH_ENTRY_SIZE) != i) | |
356 | { | |
357 | hash = GET_WORD (abfd, | |
358 | table + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD); | |
359 | if (hash == 0 || hash >= table_size / HASH_ENTRY_SIZE) | |
360 | abort (); | |
361 | } | |
362 | } | |
363 | free (table); | |
364 | } | |
365 | #endif /* CHECK_DYNAMIC_HASH */ | |
366 | ||
367 | /* Get the asymbol structures corresponding to the dynamic nlist | |
368 | structures. */ | |
116c20d2 | 369 | if (info->canonical_dynsym == NULL) |
252b5132 | 370 | { |
dc810e39 AM |
371 | bfd_size_type size; |
372 | bfd_size_type strsize = info->dyninfo.ld_symb_size; | |
373 | ||
374 | size = (bfd_size_type) info->dynsym_count * sizeof (aout_symbol_type); | |
116c20d2 | 375 | info->canonical_dynsym = bfd_alloc (abfd, size); |
252b5132 RH |
376 | if (info->canonical_dynsym == NULL && info->dynsym_count != 0) |
377 | return -1; | |
378 | ||
379 | if (! aout_32_translate_symbol_table (abfd, info->canonical_dynsym, | |
dc810e39 AM |
380 | info->dynsym, |
381 | (bfd_size_type) info->dynsym_count, | |
b34976b6 | 382 | info->dynstr, strsize, TRUE)) |
252b5132 RH |
383 | { |
384 | if (info->canonical_dynsym != NULL) | |
385 | { | |
386 | bfd_release (abfd, info->canonical_dynsym); | |
387 | info->canonical_dynsym = NULL; | |
388 | } | |
389 | return -1; | |
390 | } | |
391 | } | |
392 | ||
393 | /* Return pointers to the dynamic asymbol structures. */ | |
394 | for (i = 0; i < info->dynsym_count; i++) | |
395 | *storage++ = (asymbol *) (info->canonical_dynsym + i); | |
396 | *storage = NULL; | |
397 | ||
398 | return info->dynsym_count; | |
399 | } | |
400 | ||
401 | /* Return the amount of memory required for the dynamic relocs. */ | |
402 | ||
403 | static long | |
116c20d2 | 404 | sunos_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
405 | { |
406 | struct sunos_dynamic_info *info; | |
407 | ||
408 | if (! sunos_read_dynamic_info (abfd)) | |
409 | return -1; | |
410 | ||
411 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
412 | if (! info->valid) | |
413 | { | |
414 | bfd_set_error (bfd_error_no_symbols); | |
415 | return -1; | |
416 | } | |
417 | ||
418 | return (info->dynrel_count + 1) * sizeof (arelent *); | |
419 | } | |
420 | ||
421 | /* Read in the dynamic relocs. */ | |
422 | ||
423 | static long | |
116c20d2 | 424 | sunos_canonicalize_dynamic_reloc (bfd *abfd, arelent **storage, asymbol **syms) |
252b5132 RH |
425 | { |
426 | struct sunos_dynamic_info *info; | |
427 | unsigned long i; | |
dc810e39 | 428 | bfd_size_type size; |
252b5132 RH |
429 | |
430 | /* Get the general dynamic information. */ | |
116c20d2 | 431 | if (obj_aout_dynamic_info (abfd) == NULL) |
252b5132 RH |
432 | { |
433 | if (! sunos_read_dynamic_info (abfd)) | |
434 | return -1; | |
435 | } | |
436 | ||
437 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
438 | if (! info->valid) | |
439 | { | |
440 | bfd_set_error (bfd_error_no_symbols); | |
441 | return -1; | |
442 | } | |
443 | ||
444 | /* Get the dynamic reloc information. */ | |
445 | if (info->dynrel == NULL) | |
446 | { | |
dc810e39 | 447 | size = (bfd_size_type) info->dynrel_count * obj_reloc_entry_size (abfd); |
116c20d2 | 448 | info->dynrel = bfd_alloc (abfd, size); |
dc810e39 | 449 | if (info->dynrel == NULL && size != 0) |
252b5132 | 450 | return -1; |
dc810e39 | 451 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_rel, SEEK_SET) != 0 |
116c20d2 | 452 | || bfd_bread ((void *) info->dynrel, size, abfd) != size) |
252b5132 RH |
453 | { |
454 | if (info->dynrel != NULL) | |
455 | { | |
456 | bfd_release (abfd, info->dynrel); | |
457 | info->dynrel = NULL; | |
458 | } | |
459 | return -1; | |
460 | } | |
461 | } | |
462 | ||
463 | /* Get the arelent structures corresponding to the dynamic reloc | |
464 | information. */ | |
116c20d2 | 465 | if (info->canonical_dynrel == NULL) |
252b5132 RH |
466 | { |
467 | arelent *to; | |
468 | ||
dc810e39 | 469 | size = (bfd_size_type) info->dynrel_count * sizeof (arelent); |
116c20d2 | 470 | info->canonical_dynrel = bfd_alloc (abfd, size); |
252b5132 RH |
471 | if (info->canonical_dynrel == NULL && info->dynrel_count != 0) |
472 | return -1; | |
7b82c249 | 473 | |
252b5132 RH |
474 | to = info->canonical_dynrel; |
475 | ||
476 | if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE) | |
477 | { | |
116c20d2 | 478 | struct reloc_ext_external *p; |
252b5132 RH |
479 | struct reloc_ext_external *pend; |
480 | ||
481 | p = (struct reloc_ext_external *) info->dynrel; | |
482 | pend = p + info->dynrel_count; | |
483 | for (; p < pend; p++, to++) | |
116c20d2 NC |
484 | NAME (aout, swap_ext_reloc_in) (abfd, p, to, syms, |
485 | (bfd_size_type) info->dynsym_count); | |
252b5132 RH |
486 | } |
487 | else | |
488 | { | |
116c20d2 | 489 | struct reloc_std_external *p; |
252b5132 RH |
490 | struct reloc_std_external *pend; |
491 | ||
492 | p = (struct reloc_std_external *) info->dynrel; | |
493 | pend = p + info->dynrel_count; | |
494 | for (; p < pend; p++, to++) | |
116c20d2 NC |
495 | NAME (aout, swap_std_reloc_in) (abfd, p, to, syms, |
496 | (bfd_size_type) info->dynsym_count); | |
252b5132 RH |
497 | } |
498 | } | |
499 | ||
500 | /* Return pointers to the dynamic arelent structures. */ | |
501 | for (i = 0; i < info->dynrel_count; i++) | |
502 | *storage++ = info->canonical_dynrel + i; | |
503 | *storage = NULL; | |
504 | ||
505 | return info->dynrel_count; | |
506 | } | |
507 | \f | |
508 | /* Code to handle linking of SunOS shared libraries. */ | |
509 | ||
510 | /* A SPARC procedure linkage table entry is 12 bytes. The first entry | |
511 | in the table is a jump which is filled in by the runtime linker. | |
512 | The remaining entries are branches back to the first entry, | |
513 | followed by an index into the relocation table encoded to look like | |
514 | a sethi of %g0. */ | |
515 | ||
516 | #define SPARC_PLT_ENTRY_SIZE (12) | |
517 | ||
518 | static const bfd_byte sparc_plt_first_entry[SPARC_PLT_ENTRY_SIZE] = | |
519 | { | |
520 | /* sethi %hi(0),%g1; address filled in by runtime linker. */ | |
521 | 0x3, 0, 0, 0, | |
522 | /* jmp %g1; offset filled in by runtime linker. */ | |
523 | 0x81, 0xc0, 0x60, 0, | |
524 | /* nop */ | |
525 | 0x1, 0, 0, 0 | |
526 | }; | |
527 | ||
528 | /* save %sp, -96, %sp */ | |
dc810e39 | 529 | #define SPARC_PLT_ENTRY_WORD0 ((bfd_vma) 0x9de3bfa0) |
252b5132 | 530 | /* call; address filled in later. */ |
dc810e39 | 531 | #define SPARC_PLT_ENTRY_WORD1 ((bfd_vma) 0x40000000) |
252b5132 | 532 | /* sethi; reloc index filled in later. */ |
dc810e39 | 533 | #define SPARC_PLT_ENTRY_WORD2 ((bfd_vma) 0x01000000) |
252b5132 RH |
534 | |
535 | /* This sequence is used when for the jump table entry to a defined | |
536 | symbol in a complete executable. It is used when linking PIC | |
537 | compiled code which is not being put into a shared library. */ | |
538 | /* sethi <address to be filled in later>, %g1 */ | |
dc810e39 | 539 | #define SPARC_PLT_PIC_WORD0 ((bfd_vma) 0x03000000) |
252b5132 | 540 | /* jmp %g1 + <address to be filled in later> */ |
dc810e39 | 541 | #define SPARC_PLT_PIC_WORD1 ((bfd_vma) 0x81c06000) |
252b5132 | 542 | /* nop */ |
dc810e39 | 543 | #define SPARC_PLT_PIC_WORD2 ((bfd_vma) 0x01000000) |
252b5132 RH |
544 | |
545 | /* An m68k procedure linkage table entry is 8 bytes. The first entry | |
546 | in the table is a jump which is filled in the by the runtime | |
547 | linker. The remaining entries are branches back to the first | |
548 | entry, followed by a two byte index into the relocation table. */ | |
549 | ||
550 | #define M68K_PLT_ENTRY_SIZE (8) | |
551 | ||
552 | static const bfd_byte m68k_plt_first_entry[M68K_PLT_ENTRY_SIZE] = | |
553 | { | |
554 | /* jmps @# */ | |
555 | 0x4e, 0xf9, | |
556 | /* Filled in by runtime linker with a magic address. */ | |
557 | 0, 0, 0, 0, | |
558 | /* Not used? */ | |
559 | 0, 0 | |
560 | }; | |
561 | ||
562 | /* bsrl */ | |
dc810e39 | 563 | #define M68K_PLT_ENTRY_WORD0 ((bfd_vma) 0x61ff) |
252b5132 RH |
564 | /* Remaining words filled in later. */ |
565 | ||
566 | /* An entry in the SunOS linker hash table. */ | |
567 | ||
568 | struct sunos_link_hash_entry | |
569 | { | |
570 | struct aout_link_hash_entry root; | |
571 | ||
572 | /* If this is a dynamic symbol, this is its index into the dynamic | |
573 | symbol table. This is initialized to -1. As the linker looks at | |
574 | the input files, it changes this to -2 if it will be added to the | |
575 | dynamic symbol table. After all the input files have been seen, | |
576 | the linker will know whether to build a dynamic symbol table; if | |
577 | it does build one, this becomes the index into the table. */ | |
578 | long dynindx; | |
579 | ||
580 | /* If this is a dynamic symbol, this is the index of the name in the | |
581 | dynamic symbol string table. */ | |
582 | long dynstr_index; | |
583 | ||
584 | /* The offset into the global offset table used for this symbol. If | |
585 | the symbol does not require a GOT entry, this is 0. */ | |
586 | bfd_vma got_offset; | |
587 | ||
588 | /* The offset into the procedure linkage table used for this symbol. | |
589 | If the symbol does not require a PLT entry, this is 0. */ | |
590 | bfd_vma plt_offset; | |
591 | ||
592 | /* Some linker flags. */ | |
593 | unsigned char flags; | |
594 | /* Symbol is referenced by a regular object. */ | |
595 | #define SUNOS_REF_REGULAR 01 | |
596 | /* Symbol is defined by a regular object. */ | |
597 | #define SUNOS_DEF_REGULAR 02 | |
598 | /* Symbol is referenced by a dynamic object. */ | |
599 | #define SUNOS_REF_DYNAMIC 04 | |
600 | /* Symbol is defined by a dynamic object. */ | |
601 | #define SUNOS_DEF_DYNAMIC 010 | |
602 | /* Symbol is a constructor symbol in a regular object. */ | |
603 | #define SUNOS_CONSTRUCTOR 020 | |
604 | }; | |
605 | ||
606 | /* The SunOS linker hash table. */ | |
607 | ||
608 | struct sunos_link_hash_table | |
609 | { | |
610 | struct aout_link_hash_table root; | |
611 | ||
612 | /* The object which holds the dynamic sections. */ | |
613 | bfd *dynobj; | |
614 | ||
615 | /* Whether we have created the dynamic sections. */ | |
b34976b6 | 616 | bfd_boolean dynamic_sections_created; |
252b5132 RH |
617 | |
618 | /* Whether we need the dynamic sections. */ | |
b34976b6 | 619 | bfd_boolean dynamic_sections_needed; |
252b5132 RH |
620 | |
621 | /* Whether we need the .got table. */ | |
b34976b6 | 622 | bfd_boolean got_needed; |
252b5132 RH |
623 | |
624 | /* The number of dynamic symbols. */ | |
625 | size_t dynsymcount; | |
626 | ||
627 | /* The number of buckets in the hash table. */ | |
628 | size_t bucketcount; | |
629 | ||
630 | /* The list of dynamic objects needed by dynamic objects included in | |
631 | the link. */ | |
632 | struct bfd_link_needed_list *needed; | |
633 | ||
634 | /* The offset of __GLOBAL_OFFSET_TABLE_ into the .got section. */ | |
635 | bfd_vma got_base; | |
636 | }; | |
637 | ||
638 | /* Routine to create an entry in an SunOS link hash table. */ | |
639 | ||
640 | static struct bfd_hash_entry * | |
116c20d2 NC |
641 | sunos_link_hash_newfunc (struct bfd_hash_entry *entry, |
642 | struct bfd_hash_table *table, | |
643 | const char *string) | |
252b5132 RH |
644 | { |
645 | struct sunos_link_hash_entry *ret = (struct sunos_link_hash_entry *) entry; | |
646 | ||
647 | /* Allocate the structure if it has not already been allocated by a | |
648 | subclass. */ | |
116c20d2 NC |
649 | if (ret == NULL) |
650 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
651 | if (ret == NULL) | |
652 | return NULL; | |
252b5132 RH |
653 | |
654 | /* Call the allocation method of the superclass. */ | |
655 | ret = ((struct sunos_link_hash_entry *) | |
116c20d2 NC |
656 | NAME (aout, link_hash_newfunc) ((struct bfd_hash_entry *) ret, |
657 | table, string)); | |
252b5132 RH |
658 | if (ret != NULL) |
659 | { | |
660 | /* Set local fields. */ | |
661 | ret->dynindx = -1; | |
662 | ret->dynstr_index = -1; | |
663 | ret->got_offset = 0; | |
664 | ret->plt_offset = 0; | |
665 | ret->flags = 0; | |
666 | } | |
667 | ||
668 | return (struct bfd_hash_entry *) ret; | |
669 | } | |
670 | ||
671 | /* Create a SunOS link hash table. */ | |
672 | ||
673 | static struct bfd_link_hash_table * | |
116c20d2 | 674 | sunos_link_hash_table_create (bfd *abfd) |
252b5132 RH |
675 | { |
676 | struct sunos_link_hash_table *ret; | |
dc810e39 | 677 | bfd_size_type amt = sizeof (struct sunos_link_hash_table); |
252b5132 | 678 | |
116c20d2 NC |
679 | ret = bfd_malloc (amt); |
680 | if (ret == NULL) | |
681 | return NULL; | |
682 | if (! NAME (aout, link_hash_table_init) (&ret->root, abfd, | |
683 | sunos_link_hash_newfunc)) | |
252b5132 | 684 | { |
e2d34d7d | 685 | free (ret); |
116c20d2 | 686 | return NULL; |
252b5132 RH |
687 | } |
688 | ||
689 | ret->dynobj = NULL; | |
b34976b6 AM |
690 | ret->dynamic_sections_created = FALSE; |
691 | ret->dynamic_sections_needed = FALSE; | |
692 | ret->got_needed = FALSE; | |
252b5132 RH |
693 | ret->dynsymcount = 0; |
694 | ret->bucketcount = 0; | |
695 | ret->needed = NULL; | |
696 | ret->got_base = 0; | |
697 | ||
698 | return &ret->root.root; | |
699 | } | |
700 | ||
701 | /* Look up an entry in an SunOS link hash table. */ | |
702 | ||
703 | #define sunos_link_hash_lookup(table, string, create, copy, follow) \ | |
704 | ((struct sunos_link_hash_entry *) \ | |
705 | aout_link_hash_lookup (&(table)->root, (string), (create), (copy),\ | |
706 | (follow))) | |
707 | ||
708 | /* Traverse a SunOS link hash table. */ | |
709 | ||
710 | #define sunos_link_hash_traverse(table, func, info) \ | |
711 | (aout_link_hash_traverse \ | |
712 | (&(table)->root, \ | |
116c20d2 | 713 | (bfd_boolean (*) (struct aout_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
714 | (info))) |
715 | ||
716 | /* Get the SunOS link hash table from the info structure. This is | |
717 | just a cast. */ | |
718 | ||
719 | #define sunos_hash_table(p) ((struct sunos_link_hash_table *) ((p)->hash)) | |
720 | ||
252b5132 RH |
721 | /* Create the dynamic sections needed if we are linking against a |
722 | dynamic object, or if we are linking PIC compiled code. ABFD is a | |
723 | bfd we can attach the dynamic sections to. The linker script will | |
724 | look for these special sections names and put them in the right | |
725 | place in the output file. See include/aout/sun4.h for more details | |
726 | of the dynamic linking information. */ | |
727 | ||
b34976b6 | 728 | static bfd_boolean |
116c20d2 NC |
729 | sunos_create_dynamic_sections (bfd *abfd, |
730 | struct bfd_link_info *info, | |
731 | bfd_boolean needed) | |
252b5132 RH |
732 | { |
733 | asection *s; | |
734 | ||
735 | if (! sunos_hash_table (info)->dynamic_sections_created) | |
736 | { | |
737 | flagword flags; | |
738 | ||
739 | sunos_hash_table (info)->dynobj = abfd; | |
740 | ||
741 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
742 | | SEC_LINKER_CREATED); | |
743 | ||
744 | /* The .dynamic section holds the basic dynamic information: the | |
745 | sun4_dynamic structure, the dynamic debugger information, and | |
746 | the sun4_dynamic_link structure. */ | |
747 | s = bfd_make_section (abfd, ".dynamic"); | |
748 | if (s == NULL | |
749 | || ! bfd_set_section_flags (abfd, s, flags) | |
750 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 751 | return FALSE; |
252b5132 RH |
752 | |
753 | /* The .got section holds the global offset table. The address | |
754 | is put in the ld_got field. */ | |
755 | s = bfd_make_section (abfd, ".got"); | |
756 | if (s == NULL | |
757 | || ! bfd_set_section_flags (abfd, s, flags) | |
758 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 759 | return FALSE; |
252b5132 RH |
760 | |
761 | /* The .plt section holds the procedure linkage table. The | |
762 | address is put in the ld_plt field. */ | |
763 | s = bfd_make_section (abfd, ".plt"); | |
764 | if (s == NULL | |
765 | || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE) | |
766 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 767 | return FALSE; |
252b5132 RH |
768 | |
769 | /* The .dynrel section holds the dynamic relocs. The address is | |
770 | put in the ld_rel field. */ | |
771 | s = bfd_make_section (abfd, ".dynrel"); | |
772 | if (s == NULL | |
773 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
774 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 775 | return FALSE; |
252b5132 RH |
776 | |
777 | /* The .hash section holds the dynamic hash table. The address | |
778 | is put in the ld_hash field. */ | |
779 | s = bfd_make_section (abfd, ".hash"); | |
780 | if (s == NULL | |
781 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
782 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 783 | return FALSE; |
252b5132 RH |
784 | |
785 | /* The .dynsym section holds the dynamic symbols. The address | |
786 | is put in the ld_stab field. */ | |
787 | s = bfd_make_section (abfd, ".dynsym"); | |
788 | if (s == NULL | |
789 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
790 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 791 | return FALSE; |
252b5132 RH |
792 | |
793 | /* The .dynstr section holds the dynamic symbol string table. | |
794 | The address is put in the ld_symbols field. */ | |
795 | s = bfd_make_section (abfd, ".dynstr"); | |
796 | if (s == NULL | |
797 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
798 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 799 | return FALSE; |
252b5132 | 800 | |
b34976b6 | 801 | sunos_hash_table (info)->dynamic_sections_created = TRUE; |
252b5132 RH |
802 | } |
803 | ||
804 | if ((needed && ! sunos_hash_table (info)->dynamic_sections_needed) | |
805 | || info->shared) | |
806 | { | |
807 | bfd *dynobj; | |
808 | ||
809 | dynobj = sunos_hash_table (info)->dynobj; | |
810 | ||
811 | s = bfd_get_section_by_name (dynobj, ".got"); | |
eea6121a AM |
812 | if (s->size == 0) |
813 | s->size = BYTES_IN_WORD; | |
252b5132 | 814 | |
b34976b6 AM |
815 | sunos_hash_table (info)->dynamic_sections_needed = TRUE; |
816 | sunos_hash_table (info)->got_needed = TRUE; | |
252b5132 RH |
817 | } |
818 | ||
b34976b6 | 819 | return TRUE; |
252b5132 RH |
820 | } |
821 | ||
822 | /* Add dynamic symbols during a link. This is called by the a.out | |
823 | backend linker for each object it encounters. */ | |
824 | ||
b34976b6 | 825 | static bfd_boolean |
116c20d2 NC |
826 | sunos_add_dynamic_symbols (bfd *abfd, |
827 | struct bfd_link_info *info, | |
828 | struct external_nlist **symsp, | |
829 | bfd_size_type *sym_countp, | |
830 | char **stringsp) | |
252b5132 | 831 | { |
252b5132 RH |
832 | bfd *dynobj; |
833 | struct sunos_dynamic_info *dinfo; | |
834 | unsigned long need; | |
835 | ||
836 | /* Make sure we have all the required sections. */ | |
837 | if (info->hash->creator == abfd->xvec) | |
838 | { | |
839 | if (! sunos_create_dynamic_sections (abfd, info, | |
b34976b6 | 840 | ((abfd->flags & DYNAMIC) != 0 |
1049f94e | 841 | && !info->relocatable))) |
b34976b6 | 842 | return FALSE; |
252b5132 RH |
843 | } |
844 | ||
845 | /* There is nothing else to do for a normal object. */ | |
846 | if ((abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 847 | return TRUE; |
252b5132 RH |
848 | |
849 | dynobj = sunos_hash_table (info)->dynobj; | |
850 | ||
851 | /* We do not want to include the sections in a dynamic object in the | |
852 | output file. We hack by simply clobbering the list of sections | |
853 | in the BFD. This could be handled more cleanly by, say, a new | |
854 | section flag; the existing SEC_NEVER_LOAD flag is not the one we | |
855 | want, because that one still implies that the section takes up | |
856 | space in the output file. If this is the first object we have | |
857 | seen, we must preserve the dynamic sections we just created. */ | |
5daa8fe7 L |
858 | if (abfd != dynobj) |
859 | abfd->sections = NULL; | |
860 | else | |
252b5132 | 861 | { |
04dd1667 | 862 | asection *s; |
5daa8fe7 | 863 | |
04dd1667 | 864 | for (s = abfd->sections; s != NULL; s = s->next) |
5daa8fe7 | 865 | { |
5daa8fe7 L |
866 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
867 | bfd_section_list_remove (abfd, s); | |
868 | } | |
252b5132 RH |
869 | } |
870 | ||
871 | /* The native linker seems to just ignore dynamic objects when -r is | |
872 | used. */ | |
1049f94e | 873 | if (info->relocatable) |
b34976b6 | 874 | return TRUE; |
252b5132 RH |
875 | |
876 | /* There's no hope of using a dynamic object which does not exactly | |
877 | match the format of the output file. */ | |
878 | if (info->hash->creator != abfd->xvec) | |
879 | { | |
880 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 881 | return FALSE; |
252b5132 RH |
882 | } |
883 | ||
884 | /* Make sure we have a .need and a .rules sections. These are only | |
885 | needed if there really is a dynamic object in the link, so they | |
886 | are not added by sunos_create_dynamic_sections. */ | |
887 | if (bfd_get_section_by_name (dynobj, ".need") == NULL) | |
888 | { | |
889 | /* The .need section holds the list of names of shared objets | |
890 | which must be included at runtime. The address of this | |
891 | section is put in the ld_need field. */ | |
dc810e39 | 892 | asection *s = bfd_make_section (dynobj, ".need"); |
252b5132 RH |
893 | if (s == NULL |
894 | || ! bfd_set_section_flags (dynobj, s, | |
895 | (SEC_ALLOC | |
896 | | SEC_LOAD | |
897 | | SEC_HAS_CONTENTS | |
898 | | SEC_IN_MEMORY | |
899 | | SEC_READONLY)) | |
900 | || ! bfd_set_section_alignment (dynobj, s, 2)) | |
b34976b6 | 901 | return FALSE; |
252b5132 RH |
902 | } |
903 | ||
904 | if (bfd_get_section_by_name (dynobj, ".rules") == NULL) | |
905 | { | |
906 | /* The .rules section holds the path to search for shared | |
907 | objects. The address of this section is put in the ld_rules | |
908 | field. */ | |
dc810e39 | 909 | asection *s = bfd_make_section (dynobj, ".rules"); |
252b5132 RH |
910 | if (s == NULL |
911 | || ! bfd_set_section_flags (dynobj, s, | |
912 | (SEC_ALLOC | |
913 | | SEC_LOAD | |
914 | | SEC_HAS_CONTENTS | |
915 | | SEC_IN_MEMORY | |
916 | | SEC_READONLY)) | |
917 | || ! bfd_set_section_alignment (dynobj, s, 2)) | |
b34976b6 | 918 | return FALSE; |
252b5132 RH |
919 | } |
920 | ||
921 | /* Pick up the dynamic symbols and return them to the caller. */ | |
922 | if (! sunos_slurp_dynamic_symtab (abfd)) | |
b34976b6 | 923 | return FALSE; |
252b5132 RH |
924 | |
925 | dinfo = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
926 | *symsp = dinfo->dynsym; | |
927 | *sym_countp = dinfo->dynsym_count; | |
928 | *stringsp = dinfo->dynstr; | |
929 | ||
930 | /* Record information about any other objects needed by this one. */ | |
931 | need = dinfo->dyninfo.ld_need; | |
932 | while (need != 0) | |
933 | { | |
934 | bfd_byte buf[16]; | |
935 | unsigned long name, flags; | |
936 | unsigned short major_vno, minor_vno; | |
937 | struct bfd_link_needed_list *needed, **pp; | |
938 | char *namebuf, *p; | |
dc810e39 | 939 | bfd_size_type alc; |
252b5132 RH |
940 | bfd_byte b; |
941 | char *namecopy; | |
942 | ||
dc810e39 AM |
943 | if (bfd_seek (abfd, (file_ptr) need, SEEK_SET) != 0 |
944 | || bfd_bread (buf, (bfd_size_type) 16, abfd) != 16) | |
b34976b6 | 945 | return FALSE; |
252b5132 RH |
946 | |
947 | /* For the format of an ld_need entry, see aout/sun4.h. We | |
b34976b6 | 948 | should probably define structs for this manipulation. */ |
252b5132 RH |
949 | name = bfd_get_32 (abfd, buf); |
950 | flags = bfd_get_32 (abfd, buf + 4); | |
dc810e39 AM |
951 | major_vno = (unsigned short) bfd_get_16 (abfd, buf + 8); |
952 | minor_vno = (unsigned short) bfd_get_16 (abfd, buf + 10); | |
252b5132 RH |
953 | need = bfd_get_32 (abfd, buf + 12); |
954 | ||
dc810e39 | 955 | alc = sizeof (struct bfd_link_needed_list); |
116c20d2 | 956 | needed = bfd_alloc (abfd, alc); |
252b5132 | 957 | if (needed == NULL) |
b34976b6 | 958 | return FALSE; |
252b5132 RH |
959 | needed->by = abfd; |
960 | ||
961 | /* We return the name as [-l]name[.maj][.min]. */ | |
962 | alc = 30; | |
116c20d2 | 963 | namebuf = bfd_malloc (alc + 1); |
252b5132 | 964 | if (namebuf == NULL) |
b34976b6 | 965 | return FALSE; |
252b5132 RH |
966 | p = namebuf; |
967 | ||
968 | if ((flags & 0x80000000) != 0) | |
969 | { | |
970 | *p++ = '-'; | |
971 | *p++ = 'l'; | |
972 | } | |
dc810e39 | 973 | if (bfd_seek (abfd, (file_ptr) name, SEEK_SET) != 0) |
252b5132 RH |
974 | { |
975 | free (namebuf); | |
b34976b6 | 976 | return FALSE; |
252b5132 RH |
977 | } |
978 | ||
979 | do | |
980 | { | |
dc810e39 | 981 | if (bfd_bread (&b, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
982 | { |
983 | free (namebuf); | |
b34976b6 | 984 | return FALSE; |
252b5132 RH |
985 | } |
986 | ||
dc810e39 | 987 | if ((bfd_size_type) (p - namebuf) >= alc) |
252b5132 RH |
988 | { |
989 | char *n; | |
990 | ||
991 | alc *= 2; | |
116c20d2 | 992 | n = bfd_realloc (namebuf, alc + 1); |
252b5132 RH |
993 | if (n == NULL) |
994 | { | |
995 | free (namebuf); | |
b34976b6 | 996 | return FALSE; |
252b5132 RH |
997 | } |
998 | p = n + (p - namebuf); | |
999 | namebuf = n; | |
1000 | } | |
1001 | ||
1002 | *p++ = b; | |
1003 | } | |
1004 | while (b != '\0'); | |
1005 | ||
1006 | if (major_vno == 0) | |
1007 | *p = '\0'; | |
1008 | else | |
1009 | { | |
1010 | char majbuf[30]; | |
1011 | char minbuf[30]; | |
1012 | ||
1013 | sprintf (majbuf, ".%d", major_vno); | |
1014 | if (minor_vno == 0) | |
1015 | minbuf[0] = '\0'; | |
1016 | else | |
1017 | sprintf (minbuf, ".%d", minor_vno); | |
1018 | ||
1019 | if ((p - namebuf) + strlen (majbuf) + strlen (minbuf) >= alc) | |
1020 | { | |
1021 | char *n; | |
1022 | ||
1023 | alc = (p - namebuf) + strlen (majbuf) + strlen (minbuf); | |
116c20d2 | 1024 | n = bfd_realloc (namebuf, alc + 1); |
252b5132 RH |
1025 | if (n == NULL) |
1026 | { | |
1027 | free (namebuf); | |
b34976b6 | 1028 | return FALSE; |
252b5132 RH |
1029 | } |
1030 | p = n + (p - namebuf); | |
1031 | namebuf = n; | |
1032 | } | |
1033 | ||
1034 | strcpy (p, majbuf); | |
1035 | strcat (p, minbuf); | |
1036 | } | |
1037 | ||
dc810e39 | 1038 | namecopy = bfd_alloc (abfd, (bfd_size_type) strlen (namebuf) + 1); |
252b5132 RH |
1039 | if (namecopy == NULL) |
1040 | { | |
1041 | free (namebuf); | |
b34976b6 | 1042 | return FALSE; |
252b5132 RH |
1043 | } |
1044 | strcpy (namecopy, namebuf); | |
1045 | free (namebuf); | |
1046 | needed->name = namecopy; | |
1047 | ||
1048 | needed->next = NULL; | |
1049 | ||
1050 | for (pp = &sunos_hash_table (info)->needed; | |
1051 | *pp != NULL; | |
1052 | pp = &(*pp)->next) | |
1053 | ; | |
1054 | *pp = needed; | |
1055 | } | |
1056 | ||
b34976b6 | 1057 | return TRUE; |
252b5132 RH |
1058 | } |
1059 | ||
1060 | /* Function to add a single symbol to the linker hash table. This is | |
1061 | a wrapper around _bfd_generic_link_add_one_symbol which handles the | |
1062 | tweaking needed for dynamic linking support. */ | |
1063 | ||
b34976b6 | 1064 | static bfd_boolean |
116c20d2 NC |
1065 | sunos_add_one_symbol (struct bfd_link_info *info, |
1066 | bfd *abfd, | |
1067 | const char *name, | |
1068 | flagword flags, | |
1069 | asection *section, | |
1070 | bfd_vma value, | |
1071 | const char *string, | |
1072 | bfd_boolean copy, | |
1073 | bfd_boolean collect, | |
1074 | struct bfd_link_hash_entry **hashp) | |
252b5132 RH |
1075 | { |
1076 | struct sunos_link_hash_entry *h; | |
1077 | int new_flag; | |
1078 | ||
1079 | if ((flags & (BSF_INDIRECT | BSF_WARNING | BSF_CONSTRUCTOR)) != 0 | |
1080 | || ! bfd_is_und_section (section)) | |
b34976b6 AM |
1081 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, TRUE, copy, |
1082 | FALSE); | |
252b5132 RH |
1083 | else |
1084 | h = ((struct sunos_link_hash_entry *) | |
b34976b6 | 1085 | bfd_wrapped_link_hash_lookup (abfd, info, name, TRUE, copy, FALSE)); |
252b5132 | 1086 | if (h == NULL) |
b34976b6 | 1087 | return FALSE; |
252b5132 RH |
1088 | |
1089 | if (hashp != NULL) | |
1090 | *hashp = (struct bfd_link_hash_entry *) h; | |
1091 | ||
1092 | /* Treat a common symbol in a dynamic object as defined in the .bss | |
1093 | section of the dynamic object. We don't want to allocate space | |
1094 | for it in our process image. */ | |
1095 | if ((abfd->flags & DYNAMIC) != 0 | |
1096 | && bfd_is_com_section (section)) | |
1097 | section = obj_bsssec (abfd); | |
1098 | ||
1099 | if (! bfd_is_und_section (section) | |
1100 | && h->root.root.type != bfd_link_hash_new | |
1101 | && h->root.root.type != bfd_link_hash_undefined | |
1102 | && h->root.root.type != bfd_link_hash_defweak) | |
1103 | { | |
1104 | /* We are defining the symbol, and it is already defined. This | |
1105 | is a potential multiple definition error. */ | |
1106 | if ((abfd->flags & DYNAMIC) != 0) | |
1107 | { | |
1108 | /* The definition we are adding is from a dynamic object. | |
1109 | We do not want this new definition to override the | |
1110 | existing definition, so we pretend it is just a | |
1111 | reference. */ | |
1112 | section = bfd_und_section_ptr; | |
1113 | } | |
1114 | else if (h->root.root.type == bfd_link_hash_defined | |
1115 | && h->root.root.u.def.section->owner != NULL | |
1116 | && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
1117 | { | |
1118 | /* The existing definition is from a dynamic object. We | |
1119 | want to override it with the definition we just found. | |
1120 | Clobber the existing definition. */ | |
1121 | h->root.root.type = bfd_link_hash_undefined; | |
1122 | h->root.root.u.undef.abfd = h->root.root.u.def.section->owner; | |
1123 | } | |
1124 | else if (h->root.root.type == bfd_link_hash_common | |
1125 | && (h->root.root.u.c.p->section->owner->flags & DYNAMIC) != 0) | |
1126 | { | |
1127 | /* The existing definition is from a dynamic object. We | |
1128 | want to override it with the definition we just found. | |
1129 | Clobber the existing definition. We can't set it to new, | |
1130 | because it is on the undefined list. */ | |
1131 | h->root.root.type = bfd_link_hash_undefined; | |
1132 | h->root.root.u.undef.abfd = h->root.root.u.c.p->section->owner; | |
1133 | } | |
1134 | } | |
1135 | ||
1136 | if ((abfd->flags & DYNAMIC) != 0 | |
1137 | && abfd->xvec == info->hash->creator | |
1138 | && (h->flags & SUNOS_CONSTRUCTOR) != 0) | |
116c20d2 NC |
1139 | /* The existing symbol is a constructor symbol, and this symbol |
1140 | is from a dynamic object. A constructor symbol is actually a | |
1141 | definition, although the type will be bfd_link_hash_undefined | |
1142 | at this point. We want to ignore the definition from the | |
1143 | dynamic object. */ | |
1144 | section = bfd_und_section_ptr; | |
252b5132 RH |
1145 | else if ((flags & BSF_CONSTRUCTOR) != 0 |
1146 | && (abfd->flags & DYNAMIC) == 0 | |
1147 | && h->root.root.type == bfd_link_hash_defined | |
1148 | && h->root.root.u.def.section->owner != NULL | |
1149 | && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
116c20d2 NC |
1150 | /* The existing symbol is defined by a dynamic object, and this |
1151 | is a constructor symbol. As above, we want to force the use | |
1152 | of the constructor symbol from the regular object. */ | |
1153 | h->root.root.type = bfd_link_hash_new; | |
252b5132 RH |
1154 | |
1155 | /* Do the usual procedure for adding a symbol. */ | |
1156 | if (! _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, | |
1157 | value, string, copy, collect, | |
1158 | hashp)) | |
b34976b6 | 1159 | return FALSE; |
252b5132 RH |
1160 | |
1161 | if (abfd->xvec == info->hash->creator) | |
1162 | { | |
1163 | /* Set a flag in the hash table entry indicating the type of | |
1164 | reference or definition we just found. Keep a count of the | |
1165 | number of dynamic symbols we find. A dynamic symbol is one | |
1166 | which is referenced or defined by both a regular object and a | |
1167 | shared object. */ | |
1168 | if ((abfd->flags & DYNAMIC) == 0) | |
1169 | { | |
1170 | if (bfd_is_und_section (section)) | |
1171 | new_flag = SUNOS_REF_REGULAR; | |
1172 | else | |
1173 | new_flag = SUNOS_DEF_REGULAR; | |
1174 | } | |
1175 | else | |
1176 | { | |
1177 | if (bfd_is_und_section (section)) | |
1178 | new_flag = SUNOS_REF_DYNAMIC; | |
1179 | else | |
1180 | new_flag = SUNOS_DEF_DYNAMIC; | |
1181 | } | |
1182 | h->flags |= new_flag; | |
1183 | ||
1184 | if (h->dynindx == -1 | |
1185 | && (h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1186 | { | |
1187 | ++sunos_hash_table (info)->dynsymcount; | |
1188 | h->dynindx = -2; | |
1189 | } | |
1190 | ||
1191 | if ((flags & BSF_CONSTRUCTOR) != 0 | |
1192 | && (abfd->flags & DYNAMIC) == 0) | |
1193 | h->flags |= SUNOS_CONSTRUCTOR; | |
1194 | } | |
1195 | ||
b34976b6 | 1196 | return TRUE; |
252b5132 RH |
1197 | } |
1198 | ||
116c20d2 NC |
1199 | extern const bfd_target MY (vec); |
1200 | ||
252b5132 RH |
1201 | /* Return the list of objects needed by BFD. */ |
1202 | ||
252b5132 | 1203 | struct bfd_link_needed_list * |
116c20d2 NC |
1204 | bfd_sunos_get_needed_list (bfd *abfd ATTRIBUTE_UNUSED, |
1205 | struct bfd_link_info *info) | |
252b5132 | 1206 | { |
116c20d2 | 1207 | if (info->hash->creator != &MY (vec)) |
252b5132 RH |
1208 | return NULL; |
1209 | return sunos_hash_table (info)->needed; | |
1210 | } | |
1211 | ||
1212 | /* Record an assignment made to a symbol by a linker script. We need | |
1213 | this in case some dynamic object refers to this symbol. */ | |
1214 | ||
b34976b6 | 1215 | bfd_boolean |
116c20d2 NC |
1216 | bfd_sunos_record_link_assignment (bfd *output_bfd, |
1217 | struct bfd_link_info *info, | |
1218 | const char *name) | |
252b5132 RH |
1219 | { |
1220 | struct sunos_link_hash_entry *h; | |
1221 | ||
1222 | if (output_bfd->xvec != &MY(vec)) | |
b34976b6 | 1223 | return TRUE; |
252b5132 RH |
1224 | |
1225 | /* This is called after we have examined all the input objects. If | |
1226 | the symbol does not exist, it merely means that no object refers | |
1227 | to it, and we can just ignore it at this point. */ | |
1228 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, | |
b34976b6 | 1229 | FALSE, FALSE, FALSE); |
252b5132 | 1230 | if (h == NULL) |
b34976b6 | 1231 | return TRUE; |
252b5132 RH |
1232 | |
1233 | /* In a shared library, the __DYNAMIC symbol does not appear in the | |
1234 | dynamic symbol table. */ | |
1235 | if (! info->shared || strcmp (name, "__DYNAMIC") != 0) | |
1236 | { | |
1237 | h->flags |= SUNOS_DEF_REGULAR; | |
1238 | ||
1239 | if (h->dynindx == -1) | |
1240 | { | |
1241 | ++sunos_hash_table (info)->dynsymcount; | |
1242 | h->dynindx = -2; | |
1243 | } | |
1244 | } | |
1245 | ||
b34976b6 | 1246 | return TRUE; |
252b5132 RH |
1247 | } |
1248 | ||
116c20d2 NC |
1249 | /* Scan the relocs for an input section using standard relocs. We |
1250 | need to figure out what to do for each reloc against a dynamic | |
1251 | symbol. If the symbol is in the .text section, an entry is made in | |
1252 | the procedure linkage table. Note that this will do the wrong | |
1253 | thing if the symbol is actually data; I don't think the Sun 3 | |
1254 | native linker handles this case correctly either. If the symbol is | |
1255 | not in the .text section, we must preserve the reloc as a dynamic | |
1256 | reloc. FIXME: We should also handle the PIC relocs here by | |
1257 | building global offset table entries. */ | |
252b5132 | 1258 | |
116c20d2 NC |
1259 | static bfd_boolean |
1260 | sunos_scan_std_relocs (struct bfd_link_info *info, | |
1261 | bfd *abfd, | |
1262 | asection *sec ATTRIBUTE_UNUSED, | |
1263 | const struct reloc_std_external *relocs, | |
1264 | bfd_size_type rel_size) | |
252b5132 RH |
1265 | { |
1266 | bfd *dynobj; | |
116c20d2 NC |
1267 | asection *splt = NULL; |
1268 | asection *srel = NULL; | |
1269 | struct sunos_link_hash_entry **sym_hashes; | |
1270 | const struct reloc_std_external *rel, *relend; | |
252b5132 | 1271 | |
116c20d2 NC |
1272 | /* We only know how to handle m68k plt entries. */ |
1273 | if (bfd_get_arch (abfd) != bfd_arch_m68k) | |
252b5132 | 1274 | { |
116c20d2 NC |
1275 | bfd_set_error (bfd_error_invalid_target); |
1276 | return FALSE; | |
252b5132 RH |
1277 | } |
1278 | ||
116c20d2 | 1279 | dynobj = NULL; |
252b5132 | 1280 | |
116c20d2 | 1281 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); |
252b5132 | 1282 | |
116c20d2 NC |
1283 | relend = relocs + rel_size / RELOC_STD_SIZE; |
1284 | for (rel = relocs; rel < relend; rel++) | |
252b5132 | 1285 | { |
116c20d2 NC |
1286 | int r_index; |
1287 | struct sunos_link_hash_entry *h; | |
1288 | ||
1289 | /* We only want relocs against external symbols. */ | |
1290 | if (bfd_header_big_endian (abfd)) | |
252b5132 | 1291 | { |
116c20d2 NC |
1292 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG) == 0) |
1293 | continue; | |
252b5132 | 1294 | } |
252b5132 | 1295 | else |
116c20d2 NC |
1296 | { |
1297 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE) == 0) | |
1298 | continue; | |
1299 | } | |
7b82c249 | 1300 | |
116c20d2 NC |
1301 | /* Get the symbol index. */ |
1302 | if (bfd_header_big_endian (abfd)) | |
1303 | r_index = ((rel->r_index[0] << 16) | |
1304 | | (rel->r_index[1] << 8) | |
1305 | | rel->r_index[2]); | |
252b5132 | 1306 | else |
116c20d2 NC |
1307 | r_index = ((rel->r_index[2] << 16) |
1308 | | (rel->r_index[1] << 8) | |
1309 | | rel->r_index[0]); | |
252b5132 | 1310 | |
116c20d2 NC |
1311 | /* Get the hash table entry. */ |
1312 | h = sym_hashes[r_index]; | |
1313 | if (h == NULL) | |
1314 | /* This should not normally happen, but it will in any case | |
1315 | be caught in the relocation phase. */ | |
1316 | continue; | |
252b5132 | 1317 | |
116c20d2 NC |
1318 | /* At this point common symbols have already been allocated, so |
1319 | we don't have to worry about them. We need to consider that | |
1320 | we may have already seen this symbol and marked it undefined; | |
1321 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC | |
1322 | will be zero. */ | |
1323 | if (h->root.root.type != bfd_link_hash_defined | |
1324 | && h->root.root.type != bfd_link_hash_defweak | |
1325 | && h->root.root.type != bfd_link_hash_undefined) | |
1326 | continue; | |
252b5132 | 1327 | |
116c20d2 NC |
1328 | if ((h->flags & SUNOS_DEF_DYNAMIC) == 0 |
1329 | || (h->flags & SUNOS_DEF_REGULAR) != 0) | |
1330 | continue; | |
1331 | ||
1332 | if (dynobj == NULL) | |
252b5132 | 1333 | { |
116c20d2 | 1334 | asection *sgot; |
252b5132 | 1335 | |
116c20d2 | 1336 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
b34976b6 | 1337 | return FALSE; |
116c20d2 NC |
1338 | dynobj = sunos_hash_table (info)->dynobj; |
1339 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1340 | srel = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1341 | BFD_ASSERT (splt != NULL && srel != NULL); | |
1342 | ||
1343 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1344 | BFD_ASSERT (sgot != NULL); | |
1345 | if (sgot->size == 0) | |
1346 | sgot->size = BYTES_IN_WORD; | |
1347 | sunos_hash_table (info)->got_needed = TRUE; | |
252b5132 | 1348 | } |
252b5132 | 1349 | |
116c20d2 NC |
1350 | BFD_ASSERT ((h->flags & SUNOS_REF_REGULAR) != 0); |
1351 | BFD_ASSERT (h->plt_offset != 0 | |
1352 | || ((h->root.root.type == bfd_link_hash_defined | |
1353 | || h->root.root.type == bfd_link_hash_defweak) | |
1354 | ? (h->root.root.u.def.section->owner->flags | |
1355 | & DYNAMIC) != 0 | |
1356 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
252b5132 | 1357 | |
116c20d2 NC |
1358 | /* This reloc is against a symbol defined only by a dynamic |
1359 | object. */ | |
1360 | if (h->root.root.type == bfd_link_hash_undefined) | |
1361 | /* Presumably this symbol was marked as being undefined by | |
1362 | an earlier reloc. */ | |
1363 | srel->size += RELOC_STD_SIZE; | |
1364 | else if ((h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
252b5132 | 1365 | { |
116c20d2 | 1366 | bfd *sub; |
252b5132 RH |
1367 | |
1368 | /* This reloc is not in the .text section. It must be | |
1369 | copied into the dynamic relocs. We mark the symbol as | |
1370 | being undefined. */ | |
eea6121a | 1371 | srel->size += RELOC_STD_SIZE; |
252b5132 RH |
1372 | sub = h->root.root.u.def.section->owner; |
1373 | h->root.root.type = bfd_link_hash_undefined; | |
1374 | h->root.root.u.undef.abfd = sub; | |
1375 | } | |
1376 | else | |
1377 | { | |
1378 | /* This symbol is in the .text section. We must give it an | |
1379 | entry in the procedure linkage table, if we have not | |
1380 | already done so. We change the definition of the symbol | |
1381 | to the .plt section; this will cause relocs against it to | |
1382 | be handled correctly. */ | |
1383 | if (h->plt_offset == 0) | |
1384 | { | |
eea6121a AM |
1385 | if (splt->size == 0) |
1386 | splt->size = M68K_PLT_ENTRY_SIZE; | |
1387 | h->plt_offset = splt->size; | |
252b5132 RH |
1388 | |
1389 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1390 | { | |
1391 | h->root.root.u.def.section = splt; | |
eea6121a | 1392 | h->root.root.u.def.value = splt->size; |
252b5132 RH |
1393 | } |
1394 | ||
eea6121a | 1395 | splt->size += M68K_PLT_ENTRY_SIZE; |
252b5132 RH |
1396 | |
1397 | /* We may also need a dynamic reloc entry. */ | |
1398 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
eea6121a | 1399 | srel->size += RELOC_STD_SIZE; |
252b5132 RH |
1400 | } |
1401 | } | |
1402 | } | |
1403 | ||
b34976b6 | 1404 | return TRUE; |
252b5132 RH |
1405 | } |
1406 | ||
1407 | /* Scan the relocs for an input section using extended relocs. We | |
1408 | need to figure out what to do for each reloc against a dynamic | |
1409 | symbol. If the reloc is a WDISP30, and the symbol is in the .text | |
1410 | section, an entry is made in the procedure linkage table. | |
1411 | Otherwise, we must preserve the reloc as a dynamic reloc. */ | |
1412 | ||
b34976b6 | 1413 | static bfd_boolean |
116c20d2 NC |
1414 | sunos_scan_ext_relocs (struct bfd_link_info *info, |
1415 | bfd *abfd, | |
1416 | asection *sec ATTRIBUTE_UNUSED, | |
1417 | const struct reloc_ext_external *relocs, | |
1418 | bfd_size_type rel_size) | |
252b5132 RH |
1419 | { |
1420 | bfd *dynobj; | |
1421 | struct sunos_link_hash_entry **sym_hashes; | |
1422 | const struct reloc_ext_external *rel, *relend; | |
1423 | asection *splt = NULL; | |
1424 | asection *sgot = NULL; | |
1425 | asection *srel = NULL; | |
dc810e39 | 1426 | bfd_size_type amt; |
252b5132 RH |
1427 | |
1428 | /* We only know how to handle SPARC plt entries. */ | |
1429 | if (bfd_get_arch (abfd) != bfd_arch_sparc) | |
1430 | { | |
1431 | bfd_set_error (bfd_error_invalid_target); | |
b34976b6 | 1432 | return FALSE; |
252b5132 RH |
1433 | } |
1434 | ||
1435 | dynobj = NULL; | |
1436 | ||
1437 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); | |
1438 | ||
1439 | relend = relocs + rel_size / RELOC_EXT_SIZE; | |
1440 | for (rel = relocs; rel < relend; rel++) | |
1441 | { | |
1442 | unsigned int r_index; | |
1443 | int r_extern; | |
1444 | int r_type; | |
1445 | struct sunos_link_hash_entry *h = NULL; | |
1446 | ||
1447 | /* Swap in the reloc information. */ | |
1448 | if (bfd_header_big_endian (abfd)) | |
1449 | { | |
1450 | r_index = ((rel->r_index[0] << 16) | |
1451 | | (rel->r_index[1] << 8) | |
1452 | | rel->r_index[2]); | |
1453 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG)); | |
1454 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
1455 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
1456 | } | |
1457 | else | |
1458 | { | |
1459 | r_index = ((rel->r_index[2] << 16) | |
1460 | | (rel->r_index[1] << 8) | |
1461 | | rel->r_index[0]); | |
1462 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); | |
1463 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
1464 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
1465 | } | |
1466 | ||
1467 | if (r_extern) | |
1468 | { | |
1469 | h = sym_hashes[r_index]; | |
1470 | if (h == NULL) | |
1471 | { | |
1472 | /* This should not normally happen, but it will in any | |
1473 | case be caught in the relocation phase. */ | |
1474 | continue; | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | /* If this is a base relative reloc, we need to make an entry in | |
b34976b6 | 1479 | the .got section. */ |
252b5132 RH |
1480 | if (r_type == RELOC_BASE10 |
1481 | || r_type == RELOC_BASE13 | |
1482 | || r_type == RELOC_BASE22) | |
1483 | { | |
1484 | if (dynobj == NULL) | |
1485 | { | |
b34976b6 AM |
1486 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
1487 | return FALSE; | |
252b5132 RH |
1488 | dynobj = sunos_hash_table (info)->dynobj; |
1489 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1490 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1491 | srel = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1492 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); | |
1493 | ||
1494 | /* Make sure we have an initial entry in the .got table. */ | |
eea6121a AM |
1495 | if (sgot->size == 0) |
1496 | sgot->size = BYTES_IN_WORD; | |
b34976b6 | 1497 | sunos_hash_table (info)->got_needed = TRUE; |
252b5132 RH |
1498 | } |
1499 | ||
1500 | if (r_extern) | |
1501 | { | |
1502 | if (h->got_offset != 0) | |
1503 | continue; | |
1504 | ||
eea6121a | 1505 | h->got_offset = sgot->size; |
252b5132 RH |
1506 | } |
1507 | else | |
1508 | { | |
1509 | if (r_index >= bfd_get_symcount (abfd)) | |
116c20d2 NC |
1510 | /* This is abnormal, but should be caught in the |
1511 | relocation phase. */ | |
1512 | continue; | |
252b5132 RH |
1513 | |
1514 | if (adata (abfd).local_got_offsets == NULL) | |
1515 | { | |
dc810e39 AM |
1516 | amt = bfd_get_symcount (abfd); |
1517 | amt *= sizeof (bfd_vma); | |
116c20d2 | 1518 | adata (abfd).local_got_offsets = bfd_zalloc (abfd, amt); |
252b5132 | 1519 | if (adata (abfd).local_got_offsets == NULL) |
b34976b6 | 1520 | return FALSE; |
252b5132 RH |
1521 | } |
1522 | ||
1523 | if (adata (abfd).local_got_offsets[r_index] != 0) | |
1524 | continue; | |
1525 | ||
eea6121a | 1526 | adata (abfd).local_got_offsets[r_index] = sgot->size; |
252b5132 RH |
1527 | } |
1528 | ||
eea6121a | 1529 | sgot->size += BYTES_IN_WORD; |
252b5132 RH |
1530 | |
1531 | /* If we are making a shared library, or if the symbol is | |
1532 | defined by a dynamic object, we will need a dynamic reloc | |
1533 | entry. */ | |
1534 | if (info->shared | |
1535 | || (h != NULL | |
1536 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1537 | && (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
eea6121a | 1538 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1539 | |
1540 | continue; | |
1541 | } | |
1542 | ||
1543 | /* Otherwise, we are only interested in relocs against symbols | |
b34976b6 AM |
1544 | defined in dynamic objects but not in regular objects. We |
1545 | only need to consider relocs against external symbols. */ | |
252b5132 RH |
1546 | if (! r_extern) |
1547 | { | |
1548 | /* But, if we are creating a shared library, we need to | |
b34976b6 | 1549 | generate an absolute reloc. */ |
252b5132 RH |
1550 | if (info->shared) |
1551 | { | |
1552 | if (dynobj == NULL) | |
1553 | { | |
b34976b6 AM |
1554 | if (! sunos_create_dynamic_sections (abfd, info, TRUE)) |
1555 | return FALSE; | |
252b5132 RH |
1556 | dynobj = sunos_hash_table (info)->dynobj; |
1557 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1558 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1559 | srel = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1560 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); | |
1561 | } | |
1562 | ||
eea6121a | 1563 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1564 | } |
1565 | ||
1566 | continue; | |
1567 | } | |
1568 | ||
1569 | /* At this point common symbols have already been allocated, so | |
1570 | we don't have to worry about them. We need to consider that | |
1571 | we may have already seen this symbol and marked it undefined; | |
1572 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC | |
1573 | will be zero. */ | |
1574 | if (h->root.root.type != bfd_link_hash_defined | |
1575 | && h->root.root.type != bfd_link_hash_defweak | |
1576 | && h->root.root.type != bfd_link_hash_undefined) | |
1577 | continue; | |
1578 | ||
1579 | if (r_type != RELOC_JMP_TBL | |
1580 | && ! info->shared | |
1581 | && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1582 | || (h->flags & SUNOS_DEF_REGULAR) != 0)) | |
1583 | continue; | |
1584 | ||
1585 | if (r_type == RELOC_JMP_TBL | |
1586 | && ! info->shared | |
1587 | && (h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1588 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
1589 | { | |
1590 | /* This symbol is apparently undefined. Don't do anything | |
b34976b6 AM |
1591 | here; just let the relocation routine report an undefined |
1592 | symbol. */ | |
252b5132 RH |
1593 | continue; |
1594 | } | |
1595 | ||
1596 | if (strcmp (h->root.root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0) | |
1597 | continue; | |
1598 | ||
1599 | if (dynobj == NULL) | |
1600 | { | |
b34976b6 AM |
1601 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
1602 | return FALSE; | |
252b5132 RH |
1603 | dynobj = sunos_hash_table (info)->dynobj; |
1604 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1605 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1606 | srel = bfd_get_section_by_name (dynobj, ".dynrel"); | |
1607 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); | |
1608 | ||
1609 | /* Make sure we have an initial entry in the .got table. */ | |
eea6121a AM |
1610 | if (sgot->size == 0) |
1611 | sgot->size = BYTES_IN_WORD; | |
b34976b6 | 1612 | sunos_hash_table (info)->got_needed = TRUE; |
252b5132 RH |
1613 | } |
1614 | ||
1615 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1616 | || info->shared | |
1617 | || (h->flags & SUNOS_REF_REGULAR) != 0); | |
1618 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1619 | || info->shared | |
1620 | || h->plt_offset != 0 | |
1621 | || ((h->root.root.type == bfd_link_hash_defined | |
1622 | || h->root.root.type == bfd_link_hash_defweak) | |
1623 | ? (h->root.root.u.def.section->owner->flags | |
1624 | & DYNAMIC) != 0 | |
1625 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
1626 | ||
1627 | /* This reloc is against a symbol defined only by a dynamic | |
1628 | object, or it is a jump table reloc from PIC compiled code. */ | |
1629 | ||
1630 | if (r_type != RELOC_JMP_TBL | |
1631 | && h->root.root.type == bfd_link_hash_undefined) | |
116c20d2 NC |
1632 | /* Presumably this symbol was marked as being undefined by |
1633 | an earlier reloc. */ | |
1634 | srel->size += RELOC_EXT_SIZE; | |
1635 | ||
252b5132 RH |
1636 | else if (r_type != RELOC_JMP_TBL |
1637 | && (h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
1638 | { | |
1639 | bfd *sub; | |
1640 | ||
1641 | /* This reloc is not in the .text section. It must be | |
1642 | copied into the dynamic relocs. We mark the symbol as | |
1643 | being undefined. */ | |
eea6121a | 1644 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1645 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) |
1646 | { | |
1647 | sub = h->root.root.u.def.section->owner; | |
1648 | h->root.root.type = bfd_link_hash_undefined; | |
1649 | h->root.root.u.undef.abfd = sub; | |
1650 | } | |
1651 | } | |
1652 | else | |
1653 | { | |
1654 | /* This symbol is in the .text section. We must give it an | |
1655 | entry in the procedure linkage table, if we have not | |
1656 | already done so. We change the definition of the symbol | |
1657 | to the .plt section; this will cause relocs against it to | |
1658 | be handled correctly. */ | |
1659 | if (h->plt_offset == 0) | |
1660 | { | |
eea6121a AM |
1661 | if (splt->size == 0) |
1662 | splt->size = SPARC_PLT_ENTRY_SIZE; | |
1663 | h->plt_offset = splt->size; | |
252b5132 RH |
1664 | |
1665 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1666 | { | |
1667 | if (h->root.root.type == bfd_link_hash_undefined) | |
1668 | h->root.root.type = bfd_link_hash_defined; | |
1669 | h->root.root.u.def.section = splt; | |
eea6121a | 1670 | h->root.root.u.def.value = splt->size; |
252b5132 RH |
1671 | } |
1672 | ||
eea6121a | 1673 | splt->size += SPARC_PLT_ENTRY_SIZE; |
252b5132 RH |
1674 | |
1675 | /* We will also need a dynamic reloc entry, unless this | |
b34976b6 AM |
1676 | is a JMP_TBL reloc produced by linking PIC compiled |
1677 | code, and we are not making a shared library. */ | |
252b5132 | 1678 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) |
eea6121a | 1679 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1680 | } |
1681 | ||
1682 | /* If we are creating a shared library, we need to copy over | |
b34976b6 | 1683 | any reloc other than a jump table reloc. */ |
252b5132 | 1684 | if (info->shared && r_type != RELOC_JMP_TBL) |
eea6121a | 1685 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1686 | } |
1687 | } | |
1688 | ||
b34976b6 | 1689 | return TRUE; |
252b5132 RH |
1690 | } |
1691 | ||
116c20d2 NC |
1692 | /* Scan the relocs for an input section. */ |
1693 | ||
1694 | static bfd_boolean | |
1695 | sunos_scan_relocs (struct bfd_link_info *info, | |
1696 | bfd *abfd, | |
1697 | asection *sec, | |
1698 | bfd_size_type rel_size) | |
1699 | { | |
1700 | void * relocs; | |
1701 | void * free_relocs = NULL; | |
1702 | ||
1703 | if (rel_size == 0) | |
1704 | return TRUE; | |
1705 | ||
1706 | if (! info->keep_memory) | |
1707 | relocs = free_relocs = bfd_malloc (rel_size); | |
1708 | else | |
1709 | { | |
1710 | struct aout_section_data_struct *n; | |
1711 | bfd_size_type amt = sizeof (struct aout_section_data_struct); | |
1712 | ||
1713 | n = bfd_alloc (abfd, amt); | |
1714 | if (n == NULL) | |
1715 | relocs = NULL; | |
1716 | else | |
1717 | { | |
1718 | set_aout_section_data (sec, n); | |
1719 | relocs = bfd_malloc (rel_size); | |
1720 | aout_section_data (sec)->relocs = relocs; | |
1721 | } | |
1722 | } | |
1723 | if (relocs == NULL) | |
1724 | return FALSE; | |
1725 | ||
1726 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
1727 | || bfd_bread (relocs, rel_size, abfd) != rel_size) | |
1728 | goto error_return; | |
1729 | ||
1730 | if (obj_reloc_entry_size (abfd) == RELOC_STD_SIZE) | |
1731 | { | |
1732 | if (! sunos_scan_std_relocs (info, abfd, sec, | |
1733 | (struct reloc_std_external *) relocs, | |
1734 | rel_size)) | |
1735 | goto error_return; | |
1736 | } | |
1737 | else | |
1738 | { | |
1739 | if (! sunos_scan_ext_relocs (info, abfd, sec, | |
1740 | (struct reloc_ext_external *) relocs, | |
1741 | rel_size)) | |
1742 | goto error_return; | |
1743 | } | |
1744 | ||
1745 | if (free_relocs != NULL) | |
1746 | free (free_relocs); | |
1747 | ||
1748 | return TRUE; | |
1749 | ||
1750 | error_return: | |
1751 | if (free_relocs != NULL) | |
1752 | free (free_relocs); | |
1753 | return FALSE; | |
1754 | } | |
1755 | ||
252b5132 RH |
1756 | /* Build the hash table of dynamic symbols, and to mark as written all |
1757 | symbols from dynamic objects which we do not plan to write out. */ | |
1758 | ||
b34976b6 | 1759 | static bfd_boolean |
116c20d2 | 1760 | sunos_scan_dynamic_symbol (struct sunos_link_hash_entry *h, void * data) |
252b5132 RH |
1761 | { |
1762 | struct bfd_link_info *info = (struct bfd_link_info *) data; | |
1763 | ||
e92d460e AM |
1764 | if (h->root.root.type == bfd_link_hash_warning) |
1765 | h = (struct sunos_link_hash_entry *) h->root.root.u.i.link; | |
1766 | ||
252b5132 RH |
1767 | /* Set the written flag for symbols we do not want to write out as |
1768 | part of the regular symbol table. This is all symbols which are | |
1769 | not defined in a regular object file. For some reason symbols | |
1770 | which are referenced by a regular object and defined by a dynamic | |
1771 | object do not seem to show up in the regular symbol table. It is | |
1772 | possible for a symbol to have only SUNOS_REF_REGULAR set here, it | |
1773 | is an undefined symbol which was turned into a common symbol | |
1774 | because it was found in an archive object which was not included | |
1775 | in the link. */ | |
1776 | if ((h->flags & SUNOS_DEF_REGULAR) == 0 | |
1777 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1778 | && strcmp (h->root.root.root.string, "__DYNAMIC") != 0) | |
b34976b6 | 1779 | h->root.written = TRUE; |
252b5132 RH |
1780 | |
1781 | /* If this symbol is defined by a dynamic object and referenced by a | |
1782 | regular object, see whether we gave it a reasonable value while | |
1783 | scanning the relocs. */ | |
252b5132 RH |
1784 | if ((h->flags & SUNOS_DEF_REGULAR) == 0 |
1785 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1786 | && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1787 | { | |
1788 | if ((h->root.root.type == bfd_link_hash_defined | |
1789 | || h->root.root.type == bfd_link_hash_defweak) | |
1790 | && ((h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
1791 | && h->root.root.u.def.section->output_section == NULL) | |
1792 | { | |
1793 | bfd *sub; | |
1794 | ||
1795 | /* This symbol is currently defined in a dynamic section | |
1796 | which is not being put into the output file. This | |
1797 | implies that there is no reloc against the symbol. I'm | |
1798 | not sure why this case would ever occur. In any case, we | |
1799 | change the symbol to be undefined. */ | |
1800 | sub = h->root.root.u.def.section->owner; | |
1801 | h->root.root.type = bfd_link_hash_undefined; | |
1802 | h->root.root.u.undef.abfd = sub; | |
1803 | } | |
1804 | } | |
1805 | ||
1806 | /* If this symbol is defined or referenced by a regular file, add it | |
1807 | to the dynamic symbols. */ | |
1808 | if ((h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1809 | { | |
1810 | asection *s; | |
1811 | size_t len; | |
1812 | bfd_byte *contents; | |
1813 | unsigned char *name; | |
1814 | unsigned long hash; | |
1815 | bfd *dynobj; | |
1816 | ||
1817 | BFD_ASSERT (h->dynindx == -2); | |
1818 | ||
1819 | dynobj = sunos_hash_table (info)->dynobj; | |
1820 | ||
1821 | h->dynindx = sunos_hash_table (info)->dynsymcount; | |
1822 | ++sunos_hash_table (info)->dynsymcount; | |
1823 | ||
1824 | len = strlen (h->root.root.root.string); | |
1825 | ||
1826 | /* We don't bother to construct a BFD hash table for the strings | |
1827 | which are the names of the dynamic symbols. Using a hash | |
1828 | table for the regular symbols is beneficial, because the | |
1829 | regular symbols includes the debugging symbols, which have | |
1830 | long names and are often duplicated in several object files. | |
1831 | There are no debugging symbols in the dynamic symbols. */ | |
1832 | s = bfd_get_section_by_name (dynobj, ".dynstr"); | |
1833 | BFD_ASSERT (s != NULL); | |
116c20d2 | 1834 | contents = bfd_realloc (s->contents, s->size + len + 1); |
252b5132 | 1835 | if (contents == NULL) |
b34976b6 | 1836 | return FALSE; |
252b5132 RH |
1837 | s->contents = contents; |
1838 | ||
eea6121a AM |
1839 | h->dynstr_index = s->size; |
1840 | strcpy ((char *) contents + s->size, h->root.root.root.string); | |
1841 | s->size += len + 1; | |
252b5132 RH |
1842 | |
1843 | /* Add it to the dynamic hash table. */ | |
1844 | name = (unsigned char *) h->root.root.root.string; | |
1845 | hash = 0; | |
1846 | while (*name != '\0') | |
1847 | hash = (hash << 1) + *name++; | |
1848 | hash &= 0x7fffffff; | |
1849 | hash %= sunos_hash_table (info)->bucketcount; | |
1850 | ||
1851 | s = bfd_get_section_by_name (dynobj, ".hash"); | |
1852 | BFD_ASSERT (s != NULL); | |
1853 | ||
1854 | if (GET_SWORD (dynobj, s->contents + hash * HASH_ENTRY_SIZE) == -1) | |
1855 | PUT_WORD (dynobj, h->dynindx, s->contents + hash * HASH_ENTRY_SIZE); | |
1856 | else | |
1857 | { | |
1858 | bfd_vma next; | |
1859 | ||
1860 | next = GET_WORD (dynobj, | |
1861 | (s->contents | |
1862 | + hash * HASH_ENTRY_SIZE | |
1863 | + BYTES_IN_WORD)); | |
eea6121a | 1864 | PUT_WORD (dynobj, s->size / HASH_ENTRY_SIZE, |
252b5132 | 1865 | s->contents + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD); |
eea6121a AM |
1866 | PUT_WORD (dynobj, h->dynindx, s->contents + s->size); |
1867 | PUT_WORD (dynobj, next, s->contents + s->size + BYTES_IN_WORD); | |
1868 | s->size += HASH_ENTRY_SIZE; | |
252b5132 RH |
1869 | } |
1870 | } | |
1871 | ||
b34976b6 | 1872 | return TRUE; |
252b5132 RH |
1873 | } |
1874 | ||
116c20d2 NC |
1875 | /* Set up the sizes and contents of the dynamic sections created in |
1876 | sunos_add_dynamic_symbols. This is called by the SunOS linker | |
1877 | emulation before_allocation routine. We must set the sizes of the | |
1878 | sections before the linker sets the addresses of the various | |
1879 | sections. This unfortunately requires reading all the relocs so | |
1880 | that we can work out which ones need to become dynamic relocs. If | |
1881 | info->keep_memory is TRUE, we keep the relocs in memory; otherwise, | |
1882 | we discard them, and will read them again later. */ | |
1883 | ||
1884 | bfd_boolean | |
1885 | bfd_sunos_size_dynamic_sections (bfd *output_bfd, | |
1886 | struct bfd_link_info *info, | |
1887 | asection **sdynptr, | |
1888 | asection **sneedptr, | |
1889 | asection **srulesptr) | |
1890 | { | |
1891 | bfd *dynobj; | |
1892 | bfd_size_type dynsymcount; | |
1893 | struct sunos_link_hash_entry *h; | |
1894 | asection *s; | |
1895 | size_t bucketcount; | |
1896 | bfd_size_type hashalloc; | |
1897 | size_t i; | |
1898 | bfd *sub; | |
1899 | ||
1900 | *sdynptr = NULL; | |
1901 | *sneedptr = NULL; | |
1902 | *srulesptr = NULL; | |
1903 | ||
1904 | if (info->relocatable) | |
1905 | return TRUE; | |
1906 | ||
1907 | if (output_bfd->xvec != &MY(vec)) | |
1908 | return TRUE; | |
1909 | ||
1910 | /* Look through all the input BFD's and read their relocs. It would | |
1911 | be better if we didn't have to do this, but there is no other way | |
1912 | to determine the number of dynamic relocs we need, and, more | |
1913 | importantly, there is no other way to know which symbols should | |
1914 | get an entry in the procedure linkage table. */ | |
1915 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
1916 | { | |
1917 | if ((sub->flags & DYNAMIC) == 0 | |
1918 | && sub->xvec == output_bfd->xvec) | |
1919 | { | |
1920 | if (! sunos_scan_relocs (info, sub, obj_textsec (sub), | |
1921 | exec_hdr (sub)->a_trsize) | |
1922 | || ! sunos_scan_relocs (info, sub, obj_datasec (sub), | |
1923 | exec_hdr (sub)->a_drsize)) | |
1924 | return FALSE; | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | dynobj = sunos_hash_table (info)->dynobj; | |
1929 | dynsymcount = sunos_hash_table (info)->dynsymcount; | |
1930 | ||
1931 | /* If there were no dynamic objects in the link, and we don't need | |
1932 | to build a global offset table, there is nothing to do here. */ | |
1933 | if (! sunos_hash_table (info)->dynamic_sections_needed | |
1934 | && ! sunos_hash_table (info)->got_needed) | |
1935 | return TRUE; | |
1936 | ||
1937 | /* If __GLOBAL_OFFSET_TABLE_ was mentioned, define it. */ | |
1938 | h = sunos_link_hash_lookup (sunos_hash_table (info), | |
1939 | "__GLOBAL_OFFSET_TABLE_", FALSE, FALSE, FALSE); | |
1940 | if (h != NULL && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1941 | { | |
1942 | h->flags |= SUNOS_DEF_REGULAR; | |
1943 | if (h->dynindx == -1) | |
1944 | { | |
1945 | ++sunos_hash_table (info)->dynsymcount; | |
1946 | h->dynindx = -2; | |
1947 | } | |
1948 | h->root.root.type = bfd_link_hash_defined; | |
1949 | h->root.root.u.def.section = bfd_get_section_by_name (dynobj, ".got"); | |
1950 | ||
1951 | /* If the .got section is more than 0x1000 bytes, we set | |
1952 | __GLOBAL_OFFSET_TABLE_ to be 0x1000 bytes into the section, | |
1953 | so that 13 bit relocations have a greater chance of working. */ | |
1954 | s = bfd_get_section_by_name (dynobj, ".got"); | |
1955 | BFD_ASSERT (s != NULL); | |
1956 | if (s->size >= 0x1000) | |
1957 | h->root.root.u.def.value = 0x1000; | |
1958 | else | |
1959 | h->root.root.u.def.value = 0; | |
1960 | ||
1961 | sunos_hash_table (info)->got_base = h->root.root.u.def.value; | |
1962 | } | |
1963 | ||
1964 | /* If there are any shared objects in the link, then we need to set | |
1965 | up the dynamic linking information. */ | |
1966 | if (sunos_hash_table (info)->dynamic_sections_needed) | |
1967 | { | |
1968 | *sdynptr = bfd_get_section_by_name (dynobj, ".dynamic"); | |
1969 | ||
1970 | /* The .dynamic section is always the same size. */ | |
1971 | s = *sdynptr; | |
1972 | BFD_ASSERT (s != NULL); | |
1973 | s->size = (sizeof (struct external_sun4_dynamic) | |
1974 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE | |
1975 | + sizeof (struct external_sun4_dynamic_link)); | |
1976 | ||
1977 | /* Set the size of the .dynsym and .hash sections. We counted | |
1978 | the number of dynamic symbols as we read the input files. We | |
1979 | will build the dynamic symbol table (.dynsym) and the hash | |
1980 | table (.hash) when we build the final symbol table, because | |
1981 | until then we do not know the correct value to give the | |
1982 | symbols. We build the dynamic symbol string table (.dynstr) | |
1983 | in a traversal of the symbol table using | |
1984 | sunos_scan_dynamic_symbol. */ | |
1985 | s = bfd_get_section_by_name (dynobj, ".dynsym"); | |
1986 | BFD_ASSERT (s != NULL); | |
1987 | s->size = dynsymcount * sizeof (struct external_nlist); | |
1988 | s->contents = bfd_alloc (output_bfd, s->size); | |
1989 | if (s->contents == NULL && s->size != 0) | |
1990 | return FALSE; | |
1991 | ||
1992 | /* The number of buckets is just the number of symbols divided | |
1993 | by four. To compute the final size of the hash table, we | |
1994 | must actually compute the hash table. Normally we need | |
1995 | exactly as many entries in the hash table as there are | |
1996 | dynamic symbols, but if some of the buckets are not used we | |
1997 | will need additional entries. In the worst case, every | |
1998 | symbol will hash to the same bucket, and we will need | |
1999 | BUCKETCOUNT - 1 extra entries. */ | |
2000 | if (dynsymcount >= 4) | |
2001 | bucketcount = dynsymcount / 4; | |
2002 | else if (dynsymcount > 0) | |
2003 | bucketcount = dynsymcount; | |
2004 | else | |
2005 | bucketcount = 1; | |
2006 | s = bfd_get_section_by_name (dynobj, ".hash"); | |
2007 | BFD_ASSERT (s != NULL); | |
2008 | hashalloc = (dynsymcount + bucketcount - 1) * HASH_ENTRY_SIZE; | |
2009 | s->contents = bfd_zalloc (dynobj, hashalloc); | |
2010 | if (s->contents == NULL && dynsymcount > 0) | |
2011 | return FALSE; | |
2012 | for (i = 0; i < bucketcount; i++) | |
2013 | PUT_WORD (output_bfd, (bfd_vma) -1, s->contents + i * HASH_ENTRY_SIZE); | |
2014 | s->size = bucketcount * HASH_ENTRY_SIZE; | |
2015 | ||
2016 | sunos_hash_table (info)->bucketcount = bucketcount; | |
2017 | ||
2018 | /* Scan all the symbols, place them in the dynamic symbol table, | |
2019 | and build the dynamic hash table. We reuse dynsymcount as a | |
2020 | counter for the number of symbols we have added so far. */ | |
2021 | sunos_hash_table (info)->dynsymcount = 0; | |
2022 | sunos_link_hash_traverse (sunos_hash_table (info), | |
2023 | sunos_scan_dynamic_symbol, | |
2024 | (void *) info); | |
2025 | BFD_ASSERT (sunos_hash_table (info)->dynsymcount == dynsymcount); | |
2026 | ||
2027 | /* The SunOS native linker seems to align the total size of the | |
2028 | symbol strings to a multiple of 8. I don't know if this is | |
2029 | important, but it can't hurt much. */ | |
2030 | s = bfd_get_section_by_name (dynobj, ".dynstr"); | |
2031 | BFD_ASSERT (s != NULL); | |
2032 | if ((s->size & 7) != 0) | |
2033 | { | |
2034 | bfd_size_type add; | |
2035 | bfd_byte *contents; | |
2036 | ||
2037 | add = 8 - (s->size & 7); | |
2038 | contents = bfd_realloc (s->contents, s->size + add); | |
2039 | if (contents == NULL) | |
2040 | return FALSE; | |
2041 | memset (contents + s->size, 0, (size_t) add); | |
2042 | s->contents = contents; | |
2043 | s->size += add; | |
2044 | } | |
2045 | } | |
2046 | ||
2047 | /* Now that we have worked out the sizes of the procedure linkage | |
2048 | table and the dynamic relocs, allocate storage for them. */ | |
2049 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
2050 | BFD_ASSERT (s != NULL); | |
2051 | if (s->size != 0) | |
2052 | { | |
2053 | s->contents = bfd_alloc (dynobj, s->size); | |
2054 | if (s->contents == NULL) | |
2055 | return FALSE; | |
2056 | ||
2057 | /* Fill in the first entry in the table. */ | |
2058 | switch (bfd_get_arch (dynobj)) | |
2059 | { | |
2060 | case bfd_arch_sparc: | |
2061 | memcpy (s->contents, sparc_plt_first_entry, SPARC_PLT_ENTRY_SIZE); | |
2062 | break; | |
2063 | ||
2064 | case bfd_arch_m68k: | |
2065 | memcpy (s->contents, m68k_plt_first_entry, M68K_PLT_ENTRY_SIZE); | |
2066 | break; | |
2067 | ||
2068 | default: | |
2069 | abort (); | |
2070 | } | |
2071 | } | |
2072 | ||
2073 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
2074 | if (s->size != 0) | |
2075 | { | |
2076 | s->contents = bfd_alloc (dynobj, s->size); | |
2077 | if (s->contents == NULL) | |
2078 | return FALSE; | |
2079 | } | |
2080 | /* We use the reloc_count field to keep track of how many of the | |
2081 | relocs we have output so far. */ | |
2082 | s->reloc_count = 0; | |
2083 | ||
2084 | /* Make space for the global offset table. */ | |
2085 | s = bfd_get_section_by_name (dynobj, ".got"); | |
2086 | s->contents = bfd_alloc (dynobj, s->size); | |
2087 | if (s->contents == NULL) | |
2088 | return FALSE; | |
2089 | ||
2090 | *sneedptr = bfd_get_section_by_name (dynobj, ".need"); | |
2091 | *srulesptr = bfd_get_section_by_name (dynobj, ".rules"); | |
2092 | ||
2093 | return TRUE; | |
2094 | } | |
2095 | ||
252b5132 RH |
2096 | /* Link a dynamic object. We actually don't have anything to do at |
2097 | this point. This entry point exists to prevent the regular linker | |
2098 | code from doing anything with the object. */ | |
2099 | ||
b34976b6 | 2100 | static bfd_boolean |
116c20d2 NC |
2101 | sunos_link_dynamic_object (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2102 | bfd *abfd ATTRIBUTE_UNUSED) | |
252b5132 | 2103 | { |
b34976b6 | 2104 | return TRUE; |
252b5132 RH |
2105 | } |
2106 | ||
2107 | /* Write out a dynamic symbol. This is called by the final traversal | |
2108 | over the symbol table. */ | |
2109 | ||
b34976b6 | 2110 | static bfd_boolean |
116c20d2 NC |
2111 | sunos_write_dynamic_symbol (bfd *output_bfd, |
2112 | struct bfd_link_info *info, | |
2113 | struct aout_link_hash_entry *harg) | |
252b5132 RH |
2114 | { |
2115 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
2116 | int type; | |
2117 | bfd_vma val; | |
2118 | asection *s; | |
2119 | struct external_nlist *outsym; | |
2120 | ||
2121 | /* If this symbol is in the procedure linkage table, fill in the | |
2122 | table entry. */ | |
2123 | if (h->plt_offset != 0) | |
2124 | { | |
2125 | bfd *dynobj; | |
2126 | asection *splt; | |
2127 | bfd_byte *p; | |
252b5132 RH |
2128 | bfd_vma r_address; |
2129 | ||
2130 | dynobj = sunos_hash_table (info)->dynobj; | |
2131 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2132 | p = splt->contents + h->plt_offset; | |
2133 | ||
2134 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
2135 | ||
2136 | r_address = (splt->output_section->vma | |
2137 | + splt->output_offset | |
2138 | + h->plt_offset); | |
2139 | ||
2140 | switch (bfd_get_arch (output_bfd)) | |
2141 | { | |
2142 | case bfd_arch_sparc: | |
2143 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) | |
2144 | { | |
2145 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD0, p); | |
2146 | bfd_put_32 (output_bfd, | |
2147 | (SPARC_PLT_ENTRY_WORD1 | |
2148 | + (((- (h->plt_offset + 4) >> 2) | |
2149 | & 0x3fffffff))), | |
2150 | p + 4); | |
2151 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD2 + s->reloc_count, | |
2152 | p + 8); | |
2153 | } | |
2154 | else | |
2155 | { | |
252b5132 RH |
2156 | val = (h->root.root.u.def.section->output_section->vma |
2157 | + h->root.root.u.def.section->output_offset | |
2158 | + h->root.root.u.def.value); | |
2159 | bfd_put_32 (output_bfd, | |
2160 | SPARC_PLT_PIC_WORD0 + ((val >> 10) & 0x3fffff), | |
2161 | p); | |
2162 | bfd_put_32 (output_bfd, | |
2163 | SPARC_PLT_PIC_WORD1 + (val & 0x3ff), | |
2164 | p + 4); | |
2165 | bfd_put_32 (output_bfd, SPARC_PLT_PIC_WORD2, p + 8); | |
2166 | } | |
2167 | break; | |
2168 | ||
2169 | case bfd_arch_m68k: | |
2170 | if (! info->shared && (h->flags & SUNOS_DEF_REGULAR) != 0) | |
2171 | abort (); | |
2172 | bfd_put_16 (output_bfd, M68K_PLT_ENTRY_WORD0, p); | |
2173 | bfd_put_32 (output_bfd, (- (h->plt_offset + 2)), p + 2); | |
dc810e39 | 2174 | bfd_put_16 (output_bfd, (bfd_vma) s->reloc_count, p + 6); |
252b5132 RH |
2175 | r_address += 2; |
2176 | break; | |
2177 | ||
2178 | default: | |
2179 | abort (); | |
2180 | } | |
2181 | ||
2182 | /* We also need to add a jump table reloc, unless this is the | |
b34976b6 | 2183 | result of a JMP_TBL reloc from PIC compiled code. */ |
252b5132 RH |
2184 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) |
2185 | { | |
2186 | BFD_ASSERT (h->dynindx >= 0); | |
2187 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2188 | < s->size); |
252b5132 RH |
2189 | p = s->contents + s->reloc_count * obj_reloc_entry_size (output_bfd); |
2190 | if (obj_reloc_entry_size (output_bfd) == RELOC_STD_SIZE) | |
2191 | { | |
2192 | struct reloc_std_external *srel; | |
2193 | ||
2194 | srel = (struct reloc_std_external *) p; | |
2195 | PUT_WORD (output_bfd, r_address, srel->r_address); | |
2196 | if (bfd_header_big_endian (output_bfd)) | |
2197 | { | |
7b82c249 KH |
2198 | srel->r_index[0] = (bfd_byte) (h->dynindx >> 16); |
2199 | srel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
2200 | srel->r_index[2] = (bfd_byte) (h->dynindx); | |
252b5132 RH |
2201 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_BIG |
2202 | | RELOC_STD_BITS_JMPTABLE_BIG); | |
2203 | } | |
2204 | else | |
2205 | { | |
7b82c249 KH |
2206 | srel->r_index[2] = (bfd_byte) (h->dynindx >> 16); |
2207 | srel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2208 | srel->r_index[0] = (bfd_byte)h->dynindx; |
2209 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_LITTLE | |
2210 | | RELOC_STD_BITS_JMPTABLE_LITTLE); | |
2211 | } | |
2212 | } | |
2213 | else | |
2214 | { | |
2215 | struct reloc_ext_external *erel; | |
2216 | ||
2217 | erel = (struct reloc_ext_external *) p; | |
2218 | PUT_WORD (output_bfd, r_address, erel->r_address); | |
2219 | if (bfd_header_big_endian (output_bfd)) | |
2220 | { | |
7b82c249 KH |
2221 | erel->r_index[0] = (bfd_byte) (h->dynindx >> 16); |
2222 | erel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2223 | erel->r_index[2] = (bfd_byte)h->dynindx; |
2224 | erel->r_type[0] = | |
2225 | (RELOC_EXT_BITS_EXTERN_BIG | |
2226 | | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2227 | } | |
2228 | else | |
2229 | { | |
7b82c249 KH |
2230 | erel->r_index[2] = (bfd_byte) (h->dynindx >> 16); |
2231 | erel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2232 | erel->r_index[0] = (bfd_byte)h->dynindx; |
2233 | erel->r_type[0] = | |
2234 | (RELOC_EXT_BITS_EXTERN_LITTLE | |
2235 | | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2236 | } | |
2237 | PUT_WORD (output_bfd, (bfd_vma) 0, erel->r_addend); | |
2238 | } | |
2239 | ||
2240 | ++s->reloc_count; | |
2241 | } | |
2242 | } | |
2243 | ||
2244 | /* If this is not a dynamic symbol, we don't have to do anything | |
2245 | else. We only check this after handling the PLT entry, because | |
2246 | we can have a PLT entry for a nondynamic symbol when linking PIC | |
2247 | compiled code from a regular object. */ | |
2248 | if (h->dynindx < 0) | |
b34976b6 | 2249 | return TRUE; |
252b5132 RH |
2250 | |
2251 | switch (h->root.root.type) | |
2252 | { | |
2253 | default: | |
2254 | case bfd_link_hash_new: | |
2255 | abort (); | |
2256 | /* Avoid variable not initialized warnings. */ | |
b34976b6 | 2257 | return TRUE; |
252b5132 RH |
2258 | case bfd_link_hash_undefined: |
2259 | type = N_UNDF | N_EXT; | |
2260 | val = 0; | |
2261 | break; | |
2262 | case bfd_link_hash_defined: | |
2263 | case bfd_link_hash_defweak: | |
2264 | { | |
2265 | asection *sec; | |
2266 | asection *output_section; | |
2267 | ||
2268 | sec = h->root.root.u.def.section; | |
2269 | output_section = sec->output_section; | |
2270 | BFD_ASSERT (bfd_is_abs_section (output_section) | |
2271 | || output_section->owner == output_bfd); | |
2272 | if (h->plt_offset != 0 | |
2273 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
2274 | { | |
2275 | type = N_UNDF | N_EXT; | |
2276 | val = 0; | |
2277 | } | |
2278 | else | |
2279 | { | |
2280 | if (output_section == obj_textsec (output_bfd)) | |
2281 | type = (h->root.root.type == bfd_link_hash_defined | |
2282 | ? N_TEXT | |
2283 | : N_WEAKT); | |
2284 | else if (output_section == obj_datasec (output_bfd)) | |
2285 | type = (h->root.root.type == bfd_link_hash_defined | |
2286 | ? N_DATA | |
2287 | : N_WEAKD); | |
2288 | else if (output_section == obj_bsssec (output_bfd)) | |
2289 | type = (h->root.root.type == bfd_link_hash_defined | |
2290 | ? N_BSS | |
2291 | : N_WEAKB); | |
2292 | else | |
2293 | type = (h->root.root.type == bfd_link_hash_defined | |
2294 | ? N_ABS | |
2295 | : N_WEAKA); | |
2296 | type |= N_EXT; | |
2297 | val = (h->root.root.u.def.value | |
2298 | + output_section->vma | |
2299 | + sec->output_offset); | |
2300 | } | |
2301 | } | |
2302 | break; | |
2303 | case bfd_link_hash_common: | |
2304 | type = N_UNDF | N_EXT; | |
2305 | val = h->root.root.u.c.size; | |
2306 | break; | |
2307 | case bfd_link_hash_undefweak: | |
2308 | type = N_WEAKU; | |
2309 | val = 0; | |
2310 | break; | |
2311 | case bfd_link_hash_indirect: | |
2312 | case bfd_link_hash_warning: | |
2313 | /* FIXME: Ignore these for now. The circumstances under which | |
2314 | they should be written out are not clear to me. */ | |
b34976b6 | 2315 | return TRUE; |
252b5132 RH |
2316 | } |
2317 | ||
2318 | s = bfd_get_section_by_name (sunos_hash_table (info)->dynobj, ".dynsym"); | |
2319 | BFD_ASSERT (s != NULL); | |
2320 | outsym = ((struct external_nlist *) | |
2321 | (s->contents + h->dynindx * EXTERNAL_NLIST_SIZE)); | |
2322 | ||
dc810e39 AM |
2323 | H_PUT_8 (output_bfd, type, outsym->e_type); |
2324 | H_PUT_8 (output_bfd, 0, outsym->e_other); | |
252b5132 RH |
2325 | |
2326 | /* FIXME: The native linker doesn't use 0 for desc. It seems to use | |
2327 | one less than the desc value in the shared library, although that | |
2328 | seems unlikely. */ | |
dc810e39 | 2329 | H_PUT_16 (output_bfd, 0, outsym->e_desc); |
252b5132 RH |
2330 | |
2331 | PUT_WORD (output_bfd, h->dynstr_index, outsym->e_strx); | |
2332 | PUT_WORD (output_bfd, val, outsym->e_value); | |
2333 | ||
b34976b6 | 2334 | return TRUE; |
252b5132 RH |
2335 | } |
2336 | ||
2337 | /* This is called for each reloc against an external symbol. If this | |
2338 | is a reloc which are are going to copy as a dynamic reloc, then | |
2339 | copy it over, and tell the caller to not bother processing this | |
2340 | reloc. */ | |
2341 | ||
b34976b6 | 2342 | static bfd_boolean |
116c20d2 NC |
2343 | sunos_check_dynamic_reloc (struct bfd_link_info *info, |
2344 | bfd *input_bfd, | |
2345 | asection *input_section, | |
2346 | struct aout_link_hash_entry *harg, | |
2347 | void * reloc, | |
2348 | bfd_byte *contents ATTRIBUTE_UNUSED, | |
2349 | bfd_boolean *skip, | |
2350 | bfd_vma *relocationp) | |
252b5132 RH |
2351 | { |
2352 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
2353 | bfd *dynobj; | |
b34976b6 AM |
2354 | bfd_boolean baserel; |
2355 | bfd_boolean jmptbl; | |
2356 | bfd_boolean pcrel; | |
252b5132 RH |
2357 | asection *s; |
2358 | bfd_byte *p; | |
2359 | long indx; | |
2360 | ||
b34976b6 | 2361 | *skip = FALSE; |
252b5132 RH |
2362 | |
2363 | dynobj = sunos_hash_table (info)->dynobj; | |
2364 | ||
2365 | if (h != NULL | |
2366 | && h->plt_offset != 0 | |
2367 | && (info->shared | |
2368 | || (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
2369 | { | |
2370 | asection *splt; | |
2371 | ||
2372 | /* Redirect the relocation to the PLT entry. */ | |
2373 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2374 | *relocationp = (splt->output_section->vma | |
2375 | + splt->output_offset | |
2376 | + h->plt_offset); | |
2377 | } | |
2378 | ||
2379 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2380 | { | |
2381 | struct reloc_std_external *srel; | |
2382 | ||
2383 | srel = (struct reloc_std_external *) reloc; | |
2384 | if (bfd_header_big_endian (input_bfd)) | |
2385 | { | |
2386 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG)); | |
2387 | jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG)); | |
2388 | pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); | |
2389 | } | |
2390 | else | |
2391 | { | |
2392 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE)); | |
2393 | jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); | |
2394 | pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); | |
2395 | } | |
2396 | } | |
2397 | else | |
2398 | { | |
2399 | struct reloc_ext_external *erel; | |
2400 | int r_type; | |
2401 | ||
2402 | erel = (struct reloc_ext_external *) reloc; | |
2403 | if (bfd_header_big_endian (input_bfd)) | |
2404 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
2405 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
2406 | else | |
2407 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
2408 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
2409 | baserel = (r_type == RELOC_BASE10 | |
2410 | || r_type == RELOC_BASE13 | |
2411 | || r_type == RELOC_BASE22); | |
2412 | jmptbl = r_type == RELOC_JMP_TBL; | |
2413 | pcrel = (r_type == RELOC_DISP8 | |
2414 | || r_type == RELOC_DISP16 | |
2415 | || r_type == RELOC_DISP32 | |
2416 | || r_type == RELOC_WDISP30 | |
2417 | || r_type == RELOC_WDISP22); | |
2418 | /* We don't consider the PC10 and PC22 types to be PC relative, | |
b34976b6 | 2419 | because they are pcrel_offset. */ |
252b5132 RH |
2420 | } |
2421 | ||
2422 | if (baserel) | |
2423 | { | |
2424 | bfd_vma *got_offsetp; | |
2425 | asection *sgot; | |
2426 | ||
2427 | if (h != NULL) | |
2428 | got_offsetp = &h->got_offset; | |
2429 | else if (adata (input_bfd).local_got_offsets == NULL) | |
2430 | got_offsetp = NULL; | |
2431 | else | |
2432 | { | |
2433 | struct reloc_std_external *srel; | |
2434 | int r_index; | |
2435 | ||
2436 | srel = (struct reloc_std_external *) reloc; | |
2437 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2438 | { | |
2439 | if (bfd_header_big_endian (input_bfd)) | |
2440 | r_index = ((srel->r_index[0] << 16) | |
2441 | | (srel->r_index[1] << 8) | |
2442 | | srel->r_index[2]); | |
2443 | else | |
2444 | r_index = ((srel->r_index[2] << 16) | |
2445 | | (srel->r_index[1] << 8) | |
2446 | | srel->r_index[0]); | |
2447 | } | |
2448 | else | |
2449 | { | |
2450 | struct reloc_ext_external *erel; | |
2451 | ||
2452 | erel = (struct reloc_ext_external *) reloc; | |
2453 | if (bfd_header_big_endian (input_bfd)) | |
2454 | r_index = ((erel->r_index[0] << 16) | |
2455 | | (erel->r_index[1] << 8) | |
2456 | | erel->r_index[2]); | |
2457 | else | |
2458 | r_index = ((erel->r_index[2] << 16) | |
2459 | | (erel->r_index[1] << 8) | |
2460 | | erel->r_index[0]); | |
2461 | } | |
2462 | ||
2463 | got_offsetp = adata (input_bfd).local_got_offsets + r_index; | |
2464 | } | |
2465 | ||
2466 | BFD_ASSERT (got_offsetp != NULL && *got_offsetp != 0); | |
2467 | ||
2468 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2469 | ||
2470 | /* We set the least significant bit to indicate whether we have | |
2471 | already initialized the GOT entry. */ | |
2472 | if ((*got_offsetp & 1) == 0) | |
2473 | { | |
2474 | if (h == NULL | |
2475 | || (! info->shared | |
2476 | && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
2477 | || (h->flags & SUNOS_DEF_REGULAR) != 0))) | |
2478 | PUT_WORD (dynobj, *relocationp, sgot->contents + *got_offsetp); | |
2479 | else | |
2480 | PUT_WORD (dynobj, 0, sgot->contents + *got_offsetp); | |
2481 | ||
2482 | if (info->shared | |
2483 | || (h != NULL | |
2484 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
2485 | && (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
2486 | { | |
2487 | /* We need to create a GLOB_DAT or 32 reloc to tell the | |
b34976b6 | 2488 | dynamic linker to fill in this entry in the table. */ |
252b5132 RH |
2489 | |
2490 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
2491 | BFD_ASSERT (s != NULL); | |
2492 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2493 | < s->size); |
252b5132 RH |
2494 | |
2495 | p = (s->contents | |
2496 | + s->reloc_count * obj_reloc_entry_size (dynobj)); | |
2497 | ||
2498 | if (h != NULL) | |
2499 | indx = h->dynindx; | |
2500 | else | |
2501 | indx = 0; | |
2502 | ||
2503 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2504 | { | |
2505 | struct reloc_std_external *srel; | |
2506 | ||
2507 | srel = (struct reloc_std_external *) p; | |
2508 | PUT_WORD (dynobj, | |
2509 | (*got_offsetp | |
2510 | + sgot->output_section->vma | |
2511 | + sgot->output_offset), | |
2512 | srel->r_address); | |
2513 | if (bfd_header_big_endian (dynobj)) | |
2514 | { | |
7b82c249 KH |
2515 | srel->r_index[0] = (bfd_byte) (indx >> 16); |
2516 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2517 | srel->r_index[2] = (bfd_byte)indx; |
2518 | if (h == NULL) | |
2519 | srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_BIG; | |
2520 | else | |
2521 | srel->r_type[0] = | |
2522 | (RELOC_STD_BITS_EXTERN_BIG | |
2523 | | RELOC_STD_BITS_BASEREL_BIG | |
2524 | | RELOC_STD_BITS_RELATIVE_BIG | |
2525 | | (2 << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
2526 | } | |
2527 | else | |
2528 | { | |
7b82c249 KH |
2529 | srel->r_index[2] = (bfd_byte) (indx >> 16); |
2530 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2531 | srel->r_index[0] = (bfd_byte)indx; |
2532 | if (h == NULL) | |
2533 | srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_LITTLE; | |
2534 | else | |
2535 | srel->r_type[0] = | |
2536 | (RELOC_STD_BITS_EXTERN_LITTLE | |
2537 | | RELOC_STD_BITS_BASEREL_LITTLE | |
2538 | | RELOC_STD_BITS_RELATIVE_LITTLE | |
2539 | | (2 << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
2540 | } | |
2541 | } | |
2542 | else | |
2543 | { | |
2544 | struct reloc_ext_external *erel; | |
2545 | ||
2546 | erel = (struct reloc_ext_external *) p; | |
2547 | PUT_WORD (dynobj, | |
2548 | (*got_offsetp | |
2549 | + sgot->output_section->vma | |
2550 | + sgot->output_offset), | |
2551 | erel->r_address); | |
2552 | if (bfd_header_big_endian (dynobj)) | |
2553 | { | |
7b82c249 KH |
2554 | erel->r_index[0] = (bfd_byte) (indx >> 16); |
2555 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2556 | erel->r_index[2] = (bfd_byte)indx; |
2557 | if (h == NULL) | |
2558 | erel->r_type[0] = | |
2559 | RELOC_32 << RELOC_EXT_BITS_TYPE_SH_BIG; | |
2560 | else | |
2561 | erel->r_type[0] = | |
2562 | (RELOC_EXT_BITS_EXTERN_BIG | |
2563 | | (RELOC_GLOB_DAT << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2564 | } | |
2565 | else | |
2566 | { | |
7b82c249 KH |
2567 | erel->r_index[2] = (bfd_byte) (indx >> 16); |
2568 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2569 | erel->r_index[0] = (bfd_byte)indx; |
2570 | if (h == NULL) | |
2571 | erel->r_type[0] = | |
2572 | RELOC_32 << RELOC_EXT_BITS_TYPE_SH_LITTLE; | |
2573 | else | |
2574 | erel->r_type[0] = | |
2575 | (RELOC_EXT_BITS_EXTERN_LITTLE | |
2576 | | (RELOC_GLOB_DAT | |
2577 | << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2578 | } | |
2579 | PUT_WORD (dynobj, 0, erel->r_addend); | |
2580 | } | |
2581 | ||
2582 | ++s->reloc_count; | |
2583 | } | |
2584 | ||
2585 | *got_offsetp |= 1; | |
2586 | } | |
2587 | ||
2588 | *relocationp = (sgot->vma | |
dc810e39 | 2589 | + (*got_offsetp &~ (bfd_vma) 1) |
252b5132 RH |
2590 | - sunos_hash_table (info)->got_base); |
2591 | ||
2592 | /* There is nothing else to do for a base relative reloc. */ | |
b34976b6 | 2593 | return TRUE; |
252b5132 RH |
2594 | } |
2595 | ||
2596 | if (! sunos_hash_table (info)->dynamic_sections_needed) | |
b34976b6 | 2597 | return TRUE; |
252b5132 RH |
2598 | if (! info->shared) |
2599 | { | |
2600 | if (h == NULL | |
2601 | || h->dynindx == -1 | |
2602 | || h->root.root.type != bfd_link_hash_undefined | |
2603 | || (h->flags & SUNOS_DEF_REGULAR) != 0 | |
2604 | || (h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
2605 | || (h->root.root.u.undef.abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 2606 | return TRUE; |
252b5132 RH |
2607 | } |
2608 | else | |
2609 | { | |
2610 | if (h != NULL | |
2611 | && (h->dynindx == -1 | |
2612 | || jmptbl | |
2613 | || strcmp (h->root.root.root.string, | |
2614 | "__GLOBAL_OFFSET_TABLE_") == 0)) | |
b34976b6 | 2615 | return TRUE; |
252b5132 RH |
2616 | } |
2617 | ||
2618 | /* It looks like this is a reloc we are supposed to copy. */ | |
2619 | ||
2620 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
2621 | BFD_ASSERT (s != NULL); | |
eea6121a | 2622 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) < s->size); |
252b5132 RH |
2623 | |
2624 | p = s->contents + s->reloc_count * obj_reloc_entry_size (dynobj); | |
2625 | ||
2626 | /* Copy the reloc over. */ | |
2627 | memcpy (p, reloc, obj_reloc_entry_size (dynobj)); | |
2628 | ||
2629 | if (h != NULL) | |
2630 | indx = h->dynindx; | |
2631 | else | |
2632 | indx = 0; | |
2633 | ||
2634 | /* Adjust the address and symbol index. */ | |
2635 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2636 | { | |
2637 | struct reloc_std_external *srel; | |
2638 | ||
2639 | srel = (struct reloc_std_external *) p; | |
2640 | PUT_WORD (dynobj, | |
2641 | (GET_WORD (dynobj, srel->r_address) | |
2642 | + input_section->output_section->vma | |
2643 | + input_section->output_offset), | |
2644 | srel->r_address); | |
2645 | if (bfd_header_big_endian (dynobj)) | |
2646 | { | |
7b82c249 KH |
2647 | srel->r_index[0] = (bfd_byte) (indx >> 16); |
2648 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2649 | srel->r_index[2] = (bfd_byte)indx; |
2650 | } | |
2651 | else | |
2652 | { | |
7b82c249 KH |
2653 | srel->r_index[2] = (bfd_byte) (indx >> 16); |
2654 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2655 | srel->r_index[0] = (bfd_byte)indx; |
2656 | } | |
2657 | /* FIXME: We may have to change the addend for a PC relative | |
b34976b6 | 2658 | reloc. */ |
252b5132 RH |
2659 | } |
2660 | else | |
2661 | { | |
2662 | struct reloc_ext_external *erel; | |
2663 | ||
2664 | erel = (struct reloc_ext_external *) p; | |
2665 | PUT_WORD (dynobj, | |
2666 | (GET_WORD (dynobj, erel->r_address) | |
2667 | + input_section->output_section->vma | |
2668 | + input_section->output_offset), | |
2669 | erel->r_address); | |
2670 | if (bfd_header_big_endian (dynobj)) | |
2671 | { | |
7b82c249 KH |
2672 | erel->r_index[0] = (bfd_byte) (indx >> 16); |
2673 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2674 | erel->r_index[2] = (bfd_byte)indx; |
2675 | } | |
2676 | else | |
2677 | { | |
7b82c249 KH |
2678 | erel->r_index[2] = (bfd_byte) (indx >> 16); |
2679 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2680 | erel->r_index[0] = (bfd_byte)indx; |
2681 | } | |
2682 | if (pcrel && h != NULL) | |
2683 | { | |
2684 | /* Adjust the addend for the change in address. */ | |
2685 | PUT_WORD (dynobj, | |
2686 | (GET_WORD (dynobj, erel->r_addend) | |
2687 | - (input_section->output_section->vma | |
2688 | + input_section->output_offset | |
2689 | - input_section->vma)), | |
2690 | erel->r_addend); | |
2691 | } | |
2692 | } | |
2693 | ||
2694 | ++s->reloc_count; | |
2695 | ||
2696 | if (h != NULL) | |
b34976b6 | 2697 | *skip = TRUE; |
252b5132 | 2698 | |
b34976b6 | 2699 | return TRUE; |
252b5132 RH |
2700 | } |
2701 | ||
2702 | /* Finish up the dynamic linking information. */ | |
2703 | ||
b34976b6 | 2704 | static bfd_boolean |
116c20d2 | 2705 | sunos_finish_dynamic_link (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
2706 | { |
2707 | bfd *dynobj; | |
2708 | asection *o; | |
2709 | asection *s; | |
2710 | asection *sdyn; | |
2711 | ||
2712 | if (! sunos_hash_table (info)->dynamic_sections_needed | |
2713 | && ! sunos_hash_table (info)->got_needed) | |
b34976b6 | 2714 | return TRUE; |
252b5132 RH |
2715 | |
2716 | dynobj = sunos_hash_table (info)->dynobj; | |
2717 | ||
2718 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
2719 | BFD_ASSERT (sdyn != NULL); | |
2720 | ||
2721 | /* Finish up the .need section. The linker emulation code filled it | |
2722 | in, but with offsets from the start of the section instead of | |
2723 | real addresses. Now that we know the section location, we can | |
2724 | fill in the final values. */ | |
2725 | s = bfd_get_section_by_name (dynobj, ".need"); | |
eea6121a | 2726 | if (s != NULL && s->size != 0) |
252b5132 RH |
2727 | { |
2728 | file_ptr filepos; | |
2729 | bfd_byte *p; | |
2730 | ||
2731 | filepos = s->output_section->filepos + s->output_offset; | |
2732 | p = s->contents; | |
2733 | while (1) | |
2734 | { | |
2735 | bfd_vma val; | |
2736 | ||
2737 | PUT_WORD (dynobj, GET_WORD (dynobj, p) + filepos, p); | |
2738 | val = GET_WORD (dynobj, p + 12); | |
2739 | if (val == 0) | |
2740 | break; | |
2741 | PUT_WORD (dynobj, val + filepos, p + 12); | |
2742 | p += 16; | |
2743 | } | |
2744 | } | |
2745 | ||
2746 | /* The first entry in the .got section is the address of the | |
2747 | dynamic information, unless this is a shared library. */ | |
2748 | s = bfd_get_section_by_name (dynobj, ".got"); | |
2749 | BFD_ASSERT (s != NULL); | |
eea6121a | 2750 | if (info->shared || sdyn->size == 0) |
252b5132 RH |
2751 | PUT_WORD (dynobj, 0, s->contents); |
2752 | else | |
2753 | PUT_WORD (dynobj, sdyn->output_section->vma + sdyn->output_offset, | |
2754 | s->contents); | |
2755 | ||
2756 | for (o = dynobj->sections; o != NULL; o = o->next) | |
2757 | { | |
2758 | if ((o->flags & SEC_HAS_CONTENTS) != 0 | |
2759 | && o->contents != NULL) | |
2760 | { | |
2761 | BFD_ASSERT (o->output_section != NULL | |
2762 | && o->output_section->owner == abfd); | |
2763 | if (! bfd_set_section_contents (abfd, o->output_section, | |
dc810e39 AM |
2764 | o->contents, |
2765 | (file_ptr) o->output_offset, | |
eea6121a | 2766 | o->size)) |
b34976b6 | 2767 | return FALSE; |
252b5132 RH |
2768 | } |
2769 | } | |
2770 | ||
eea6121a | 2771 | if (sdyn->size > 0) |
252b5132 RH |
2772 | { |
2773 | struct external_sun4_dynamic esd; | |
2774 | struct external_sun4_dynamic_link esdl; | |
dc810e39 | 2775 | file_ptr pos; |
252b5132 RH |
2776 | |
2777 | /* Finish up the dynamic link information. */ | |
2778 | PUT_WORD (dynobj, (bfd_vma) 3, esd.ld_version); | |
2779 | PUT_WORD (dynobj, | |
2780 | sdyn->output_section->vma + sdyn->output_offset + sizeof esd, | |
2781 | esd.ldd); | |
2782 | PUT_WORD (dynobj, | |
2783 | (sdyn->output_section->vma | |
2784 | + sdyn->output_offset | |
2785 | + sizeof esd | |
2786 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE), | |
2787 | esd.ld); | |
2788 | ||
2789 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esd, | |
dc810e39 AM |
2790 | (file_ptr) sdyn->output_offset, |
2791 | (bfd_size_type) sizeof esd)) | |
b34976b6 | 2792 | return FALSE; |
252b5132 RH |
2793 | |
2794 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_loaded); | |
2795 | ||
2796 | s = bfd_get_section_by_name (dynobj, ".need"); | |
eea6121a | 2797 | if (s == NULL || s->size == 0) |
252b5132 RH |
2798 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_need); |
2799 | else | |
2800 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2801 | esdl.ld_need); | |
2802 | ||
2803 | s = bfd_get_section_by_name (dynobj, ".rules"); | |
eea6121a | 2804 | if (s == NULL || s->size == 0) |
252b5132 RH |
2805 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_rules); |
2806 | else | |
2807 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2808 | esdl.ld_rules); | |
2809 | ||
2810 | s = bfd_get_section_by_name (dynobj, ".got"); | |
2811 | BFD_ASSERT (s != NULL); | |
2812 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, | |
2813 | esdl.ld_got); | |
2814 | ||
2815 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
2816 | BFD_ASSERT (s != NULL); | |
2817 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, | |
2818 | esdl.ld_plt); | |
eea6121a | 2819 | PUT_WORD (dynobj, s->size, esdl.ld_plt_sz); |
252b5132 RH |
2820 | |
2821 | s = bfd_get_section_by_name (dynobj, ".dynrel"); | |
2822 | BFD_ASSERT (s != NULL); | |
2823 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2824 | == s->size); |
252b5132 RH |
2825 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, |
2826 | esdl.ld_rel); | |
2827 | ||
2828 | s = bfd_get_section_by_name (dynobj, ".hash"); | |
2829 | BFD_ASSERT (s != NULL); | |
2830 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2831 | esdl.ld_hash); | |
2832 | ||
2833 | s = bfd_get_section_by_name (dynobj, ".dynsym"); | |
2834 | BFD_ASSERT (s != NULL); | |
2835 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2836 | esdl.ld_stab); | |
2837 | ||
2838 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_stab_hash); | |
2839 | ||
2840 | PUT_WORD (dynobj, (bfd_vma) sunos_hash_table (info)->bucketcount, | |
2841 | esdl.ld_buckets); | |
2842 | ||
2843 | s = bfd_get_section_by_name (dynobj, ".dynstr"); | |
2844 | BFD_ASSERT (s != NULL); | |
2845 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2846 | esdl.ld_symbols); | |
eea6121a | 2847 | PUT_WORD (dynobj, s->size, esdl.ld_symb_size); |
252b5132 RH |
2848 | |
2849 | /* The size of the text area is the size of the .text section | |
2850 | rounded up to a page boundary. FIXME: Should the page size be | |
2851 | conditional on something? */ | |
2852 | PUT_WORD (dynobj, | |
eea6121a | 2853 | BFD_ALIGN (obj_textsec (abfd)->size, 0x2000), |
252b5132 | 2854 | esdl.ld_text); |
7b82c249 | 2855 | |
dc810e39 AM |
2856 | pos = sdyn->output_offset; |
2857 | pos += sizeof esd + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE; | |
252b5132 | 2858 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esdl, |
dc810e39 | 2859 | pos, (bfd_size_type) sizeof esdl)) |
b34976b6 | 2860 | return FALSE; |
252b5132 RH |
2861 | |
2862 | abfd->flags |= DYNAMIC; | |
2863 | } | |
2864 | ||
b34976b6 | 2865 | return TRUE; |
252b5132 | 2866 | } |