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, |
691bf19c | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2011, 2012 |
f13a99db | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | Written by Cygnus Support. |
6 | ||
116c20d2 | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
116c20d2 NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
116c20d2 | 12 | (at your option) any later version. |
252b5132 | 13 | |
116c20d2 NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
116c20d2 NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 RH |
23 | |
24 | #define TARGETNAME "a.out-sunos-big" | |
e43d48cc AM |
25 | |
26 | /* Do not "beautify" the CONCAT* macro args. Traditional C will not | |
27 | remove whitespace added here, and thus will fail to concatenate | |
28 | the tokens. */ | |
29 | #define MY(OP) CONCAT2 (sunos_big_,OP) | |
252b5132 | 30 | |
691bf19c | 31 | #include "sysdep.h" |
252b5132 RH |
32 | #include "bfd.h" |
33 | #include "bfdlink.h" | |
34 | #include "libaout.h" | |
35 | ||
252b5132 RH |
36 | /* ??? Where should this go? */ |
37 | #define MACHTYPE_OK(mtype) \ | |
38 | (((mtype) == M_SPARC && bfd_lookup_arch (bfd_arch_sparc, 0) != NULL) \ | |
39 | || ((mtype) == M_SPARCLET \ | |
40 | && bfd_lookup_arch (bfd_arch_sparc, bfd_mach_sparc_sparclet) != NULL) \ | |
41 | || ((mtype) == M_SPARCLITE_LE \ | |
42 | && bfd_lookup_arch (bfd_arch_sparc, bfd_mach_sparc_sparclet) != NULL) \ | |
43 | || (((mtype) == M_UNKNOWN || (mtype) == M_68010 || (mtype) == M_68020) \ | |
44 | && bfd_lookup_arch (bfd_arch_m68k, 0) != NULL)) | |
45 | ||
116c20d2 NC |
46 | #define MY_get_dynamic_symtab_upper_bound sunos_get_dynamic_symtab_upper_bound |
47 | #define MY_canonicalize_dynamic_symtab sunos_canonicalize_dynamic_symtab | |
48 | #define MY_get_synthetic_symtab _bfd_nodynamic_get_synthetic_symtab | |
49 | #define MY_get_dynamic_reloc_upper_bound sunos_get_dynamic_reloc_upper_bound | |
50 | #define MY_canonicalize_dynamic_reloc sunos_canonicalize_dynamic_reloc | |
51 | #define MY_bfd_link_hash_table_create sunos_link_hash_table_create | |
52 | #define MY_add_dynamic_symbols sunos_add_dynamic_symbols | |
53 | #define MY_add_one_symbol sunos_add_one_symbol | |
54 | #define MY_link_dynamic_object sunos_link_dynamic_object | |
55 | #define MY_write_dynamic_symbol sunos_write_dynamic_symbol | |
56 | #define MY_check_dynamic_reloc sunos_check_dynamic_reloc | |
57 | #define MY_finish_dynamic_link sunos_finish_dynamic_link | |
58 | ||
59 | static bfd_boolean sunos_add_dynamic_symbols (bfd *, struct bfd_link_info *, struct external_nlist **, bfd_size_type *, char **); | |
60 | 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 **); | |
61 | static bfd_boolean sunos_link_dynamic_object (struct bfd_link_info *, bfd *); | |
62 | static bfd_boolean sunos_write_dynamic_symbol (bfd *, struct bfd_link_info *, struct aout_link_hash_entry *); | |
63 | 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 *); | |
64 | static bfd_boolean sunos_finish_dynamic_link (bfd *, struct bfd_link_info *); | |
65 | static struct bfd_link_hash_table *sunos_link_hash_table_create (bfd *); | |
66 | static long sunos_get_dynamic_symtab_upper_bound (bfd *); | |
67 | static long sunos_canonicalize_dynamic_symtab (bfd *, asymbol **); | |
68 | static long sunos_get_dynamic_reloc_upper_bound (bfd *); | |
69 | static long sunos_canonicalize_dynamic_reloc (bfd *, arelent **, asymbol **); | |
70 | ||
252b5132 RH |
71 | /* Include the usual a.out support. */ |
72 | #include "aoutf1.h" | |
73 | ||
74 | /* The SunOS 4.1.4 /usr/include/locale.h defines valid as a macro. */ | |
75 | #undef valid | |
76 | ||
77 | /* SunOS shared library support. We store a pointer to this structure | |
78 | in obj_aout_dynamic_info (abfd). */ | |
79 | ||
80 | struct sunos_dynamic_info | |
81 | { | |
82 | /* Whether we found any dynamic information. */ | |
b34976b6 | 83 | bfd_boolean valid; |
252b5132 RH |
84 | /* Dynamic information. */ |
85 | struct internal_sun4_dynamic_link dyninfo; | |
86 | /* Number of dynamic symbols. */ | |
87 | unsigned long dynsym_count; | |
88 | /* Read in nlists for dynamic symbols. */ | |
89 | struct external_nlist *dynsym; | |
90 | /* asymbol structures for dynamic symbols. */ | |
91 | aout_symbol_type *canonical_dynsym; | |
92 | /* Read in dynamic string table. */ | |
93 | char *dynstr; | |
94 | /* Number of dynamic relocs. */ | |
95 | unsigned long dynrel_count; | |
96 | /* Read in dynamic relocs. This may be reloc_std_external or | |
97 | reloc_ext_external. */ | |
116c20d2 | 98 | void * dynrel; |
252b5132 RH |
99 | /* arelent structures for dynamic relocs. */ |
100 | arelent *canonical_dynrel; | |
101 | }; | |
102 | ||
103 | /* The hash table of dynamic symbols is composed of two word entries. | |
104 | See include/aout/sun4.h for details. */ | |
105 | ||
106 | #define HASH_ENTRY_SIZE (2 * BYTES_IN_WORD) | |
107 | ||
108 | /* Read in the basic dynamic information. This locates the __DYNAMIC | |
109 | structure and uses it to find the dynamic_link structure. It | |
110 | creates and saves a sunos_dynamic_info structure. If it can't find | |
111 | __DYNAMIC, it sets the valid field of the sunos_dynamic_info | |
b34976b6 | 112 | structure to FALSE to avoid doing this work again. */ |
252b5132 | 113 | |
b34976b6 | 114 | static bfd_boolean |
116c20d2 | 115 | sunos_read_dynamic_info (bfd *abfd) |
252b5132 RH |
116 | { |
117 | struct sunos_dynamic_info *info; | |
118 | asection *dynsec; | |
119 | bfd_vma dynoff; | |
120 | struct external_sun4_dynamic dyninfo; | |
121 | unsigned long dynver; | |
122 | struct external_sun4_dynamic_link linkinfo; | |
dc810e39 | 123 | bfd_size_type amt; |
252b5132 | 124 | |
116c20d2 | 125 | if (obj_aout_dynamic_info (abfd) != NULL) |
b34976b6 | 126 | return TRUE; |
252b5132 RH |
127 | |
128 | if ((abfd->flags & DYNAMIC) == 0) | |
129 | { | |
130 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 131 | return FALSE; |
252b5132 RH |
132 | } |
133 | ||
dc810e39 | 134 | amt = sizeof (struct sunos_dynamic_info); |
116c20d2 | 135 | info = bfd_zalloc (abfd, amt); |
252b5132 | 136 | if (!info) |
b34976b6 AM |
137 | return FALSE; |
138 | info->valid = FALSE; | |
252b5132 RH |
139 | info->dynsym = NULL; |
140 | info->dynstr = NULL; | |
141 | info->canonical_dynsym = NULL; | |
142 | info->dynrel = NULL; | |
143 | info->canonical_dynrel = NULL; | |
116c20d2 | 144 | obj_aout_dynamic_info (abfd) = (void *) info; |
252b5132 RH |
145 | |
146 | /* This code used to look for the __DYNAMIC symbol to locate the dynamic | |
147 | linking information. | |
148 | However this inhibits recovering the dynamic symbols from a | |
149 | stripped object file, so blindly assume that the dynamic linking | |
150 | information is located at the start of the data section. | |
151 | We could verify this assumption later by looking through the dynamic | |
152 | symbols for the __DYNAMIC symbol. */ | |
153 | if ((abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 154 | return TRUE; |
116c20d2 | 155 | if (! bfd_get_section_contents (abfd, obj_datasec (abfd), (void *) &dyninfo, |
dc810e39 AM |
156 | (file_ptr) 0, |
157 | (bfd_size_type) sizeof dyninfo)) | |
b34976b6 | 158 | return TRUE; |
252b5132 RH |
159 | |
160 | dynver = GET_WORD (abfd, dyninfo.ld_version); | |
161 | if (dynver != 2 && dynver != 3) | |
b34976b6 | 162 | return TRUE; |
252b5132 RH |
163 | |
164 | dynoff = GET_WORD (abfd, dyninfo.ld); | |
165 | ||
166 | /* dynoff is a virtual address. It is probably always in the .data | |
167 | section, but this code should work even if it moves. */ | |
168 | if (dynoff < bfd_get_section_vma (abfd, obj_datasec (abfd))) | |
169 | dynsec = obj_textsec (abfd); | |
170 | else | |
171 | dynsec = obj_datasec (abfd); | |
172 | dynoff -= bfd_get_section_vma (abfd, dynsec); | |
eea6121a | 173 | if (dynoff > dynsec->size) |
b34976b6 | 174 | return TRUE; |
252b5132 RH |
175 | |
176 | /* This executable appears to be dynamically linked in a way that we | |
177 | can understand. */ | |
116c20d2 | 178 | if (! bfd_get_section_contents (abfd, dynsec, (void *) &linkinfo, |
dc810e39 | 179 | (file_ptr) dynoff, |
252b5132 | 180 | (bfd_size_type) sizeof linkinfo)) |
b34976b6 | 181 | return TRUE; |
252b5132 RH |
182 | |
183 | /* Swap in the dynamic link information. */ | |
184 | info->dyninfo.ld_loaded = GET_WORD (abfd, linkinfo.ld_loaded); | |
185 | info->dyninfo.ld_need = GET_WORD (abfd, linkinfo.ld_need); | |
186 | info->dyninfo.ld_rules = GET_WORD (abfd, linkinfo.ld_rules); | |
187 | info->dyninfo.ld_got = GET_WORD (abfd, linkinfo.ld_got); | |
188 | info->dyninfo.ld_plt = GET_WORD (abfd, linkinfo.ld_plt); | |
189 | info->dyninfo.ld_rel = GET_WORD (abfd, linkinfo.ld_rel); | |
190 | info->dyninfo.ld_hash = GET_WORD (abfd, linkinfo.ld_hash); | |
191 | info->dyninfo.ld_stab = GET_WORD (abfd, linkinfo.ld_stab); | |
192 | info->dyninfo.ld_stab_hash = GET_WORD (abfd, linkinfo.ld_stab_hash); | |
193 | info->dyninfo.ld_buckets = GET_WORD (abfd, linkinfo.ld_buckets); | |
194 | info->dyninfo.ld_symbols = GET_WORD (abfd, linkinfo.ld_symbols); | |
195 | info->dyninfo.ld_symb_size = GET_WORD (abfd, linkinfo.ld_symb_size); | |
196 | info->dyninfo.ld_text = GET_WORD (abfd, linkinfo.ld_text); | |
197 | info->dyninfo.ld_plt_sz = GET_WORD (abfd, linkinfo.ld_plt_sz); | |
198 | ||
199 | /* Reportedly the addresses need to be offset by the size of the | |
200 | exec header in an NMAGIC file. */ | |
201 | if (adata (abfd).magic == n_magic) | |
202 | { | |
203 | unsigned long exec_bytes_size = adata (abfd).exec_bytes_size; | |
204 | ||
205 | info->dyninfo.ld_need += exec_bytes_size; | |
206 | info->dyninfo.ld_rules += exec_bytes_size; | |
207 | info->dyninfo.ld_rel += exec_bytes_size; | |
208 | info->dyninfo.ld_hash += exec_bytes_size; | |
209 | info->dyninfo.ld_stab += exec_bytes_size; | |
210 | info->dyninfo.ld_symbols += exec_bytes_size; | |
211 | } | |
212 | ||
213 | /* The only way to get the size of the symbol information appears to | |
214 | be to determine the distance between it and the string table. */ | |
215 | info->dynsym_count = ((info->dyninfo.ld_symbols - info->dyninfo.ld_stab) | |
216 | / EXTERNAL_NLIST_SIZE); | |
217 | BFD_ASSERT (info->dynsym_count * EXTERNAL_NLIST_SIZE | |
218 | == (unsigned long) (info->dyninfo.ld_symbols | |
219 | - info->dyninfo.ld_stab)); | |
220 | ||
221 | /* Similarly, the relocs end at the hash table. */ | |
222 | info->dynrel_count = ((info->dyninfo.ld_hash - info->dyninfo.ld_rel) | |
223 | / obj_reloc_entry_size (abfd)); | |
224 | BFD_ASSERT (info->dynrel_count * obj_reloc_entry_size (abfd) | |
225 | == (unsigned long) (info->dyninfo.ld_hash | |
226 | - info->dyninfo.ld_rel)); | |
227 | ||
b34976b6 | 228 | info->valid = TRUE; |
252b5132 | 229 | |
b34976b6 | 230 | return TRUE; |
252b5132 RH |
231 | } |
232 | ||
233 | /* Return the amount of memory required for the dynamic symbols. */ | |
234 | ||
235 | static long | |
116c20d2 | 236 | sunos_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
237 | { |
238 | struct sunos_dynamic_info *info; | |
239 | ||
240 | if (! sunos_read_dynamic_info (abfd)) | |
241 | return -1; | |
242 | ||
243 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
244 | if (! info->valid) | |
245 | { | |
246 | bfd_set_error (bfd_error_no_symbols); | |
247 | return -1; | |
248 | } | |
249 | ||
250 | return (info->dynsym_count + 1) * sizeof (asymbol *); | |
251 | } | |
252 | ||
253 | /* Read the external dynamic symbols. */ | |
254 | ||
b34976b6 | 255 | static bfd_boolean |
116c20d2 | 256 | sunos_slurp_dynamic_symtab (bfd *abfd) |
252b5132 RH |
257 | { |
258 | struct sunos_dynamic_info *info; | |
dc810e39 | 259 | bfd_size_type amt; |
252b5132 RH |
260 | |
261 | /* Get the general dynamic information. */ | |
262 | if (obj_aout_dynamic_info (abfd) == NULL) | |
263 | { | |
264 | if (! sunos_read_dynamic_info (abfd)) | |
b34976b6 | 265 | return FALSE; |
252b5132 RH |
266 | } |
267 | ||
268 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
269 | if (! info->valid) | |
270 | { | |
271 | bfd_set_error (bfd_error_no_symbols); | |
b34976b6 | 272 | return FALSE; |
252b5132 RH |
273 | } |
274 | ||
275 | /* Get the dynamic nlist structures. */ | |
116c20d2 | 276 | if (info->dynsym == NULL) |
252b5132 | 277 | { |
dc810e39 | 278 | amt = (bfd_size_type) info->dynsym_count * EXTERNAL_NLIST_SIZE; |
116c20d2 | 279 | info->dynsym = bfd_alloc (abfd, amt); |
252b5132 | 280 | if (info->dynsym == NULL && info->dynsym_count != 0) |
b34976b6 | 281 | return FALSE; |
dc810e39 | 282 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_stab, SEEK_SET) != 0 |
116c20d2 | 283 | || bfd_bread ((void *) info->dynsym, amt, abfd) != amt) |
252b5132 RH |
284 | { |
285 | if (info->dynsym != NULL) | |
286 | { | |
287 | bfd_release (abfd, info->dynsym); | |
288 | info->dynsym = NULL; | |
289 | } | |
b34976b6 | 290 | return FALSE; |
252b5132 RH |
291 | } |
292 | } | |
293 | ||
294 | /* Get the dynamic strings. */ | |
116c20d2 | 295 | if (info->dynstr == NULL) |
252b5132 | 296 | { |
dc810e39 | 297 | amt = info->dyninfo.ld_symb_size; |
116c20d2 | 298 | info->dynstr = bfd_alloc (abfd, amt); |
252b5132 | 299 | if (info->dynstr == NULL && info->dyninfo.ld_symb_size != 0) |
b34976b6 | 300 | return FALSE; |
dc810e39 | 301 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_symbols, SEEK_SET) != 0 |
116c20d2 | 302 | || bfd_bread ((void *) info->dynstr, amt, abfd) != amt) |
252b5132 RH |
303 | { |
304 | if (info->dynstr != NULL) | |
305 | { | |
306 | bfd_release (abfd, info->dynstr); | |
307 | info->dynstr = NULL; | |
308 | } | |
b34976b6 | 309 | return FALSE; |
252b5132 RH |
310 | } |
311 | } | |
312 | ||
b34976b6 | 313 | return TRUE; |
252b5132 RH |
314 | } |
315 | ||
316 | /* Read in the dynamic symbols. */ | |
317 | ||
318 | static long | |
116c20d2 | 319 | sunos_canonicalize_dynamic_symtab (bfd *abfd, asymbol **storage) |
252b5132 RH |
320 | { |
321 | struct sunos_dynamic_info *info; | |
322 | unsigned long i; | |
323 | ||
324 | if (! sunos_slurp_dynamic_symtab (abfd)) | |
325 | return -1; | |
326 | ||
327 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
328 | ||
329 | #ifdef CHECK_DYNAMIC_HASH | |
330 | /* Check my understanding of the dynamic hash table by making sure | |
331 | that each symbol can be located in the hash table. */ | |
332 | { | |
333 | bfd_size_type table_size; | |
334 | bfd_byte *table; | |
335 | bfd_size_type i; | |
336 | ||
337 | if (info->dyninfo.ld_buckets > info->dynsym_count) | |
338 | abort (); | |
339 | table_size = info->dyninfo.ld_stab - info->dyninfo.ld_hash; | |
116c20d2 | 340 | table = bfd_malloc (table_size); |
252b5132 RH |
341 | if (table == NULL && table_size != 0) |
342 | abort (); | |
dc810e39 | 343 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_hash, SEEK_SET) != 0 |
116c20d2 | 344 | || bfd_bread ((void *) table, table_size, abfd) != table_size) |
252b5132 RH |
345 | abort (); |
346 | for (i = 0; i < info->dynsym_count; i++) | |
347 | { | |
348 | unsigned char *name; | |
349 | unsigned long hash; | |
350 | ||
351 | name = ((unsigned char *) info->dynstr | |
352 | + GET_WORD (abfd, info->dynsym[i].e_strx)); | |
353 | hash = 0; | |
354 | while (*name != '\0') | |
355 | hash = (hash << 1) + *name++; | |
356 | hash &= 0x7fffffff; | |
357 | hash %= info->dyninfo.ld_buckets; | |
358 | while (GET_WORD (abfd, table + hash * HASH_ENTRY_SIZE) != i) | |
359 | { | |
360 | hash = GET_WORD (abfd, | |
361 | table + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD); | |
362 | if (hash == 0 || hash >= table_size / HASH_ENTRY_SIZE) | |
363 | abort (); | |
364 | } | |
365 | } | |
366 | free (table); | |
367 | } | |
368 | #endif /* CHECK_DYNAMIC_HASH */ | |
369 | ||
370 | /* Get the asymbol structures corresponding to the dynamic nlist | |
371 | structures. */ | |
116c20d2 | 372 | if (info->canonical_dynsym == NULL) |
252b5132 | 373 | { |
dc810e39 AM |
374 | bfd_size_type size; |
375 | bfd_size_type strsize = info->dyninfo.ld_symb_size; | |
376 | ||
377 | size = (bfd_size_type) info->dynsym_count * sizeof (aout_symbol_type); | |
116c20d2 | 378 | info->canonical_dynsym = bfd_alloc (abfd, size); |
252b5132 RH |
379 | if (info->canonical_dynsym == NULL && info->dynsym_count != 0) |
380 | return -1; | |
381 | ||
382 | if (! aout_32_translate_symbol_table (abfd, info->canonical_dynsym, | |
dc810e39 AM |
383 | info->dynsym, |
384 | (bfd_size_type) info->dynsym_count, | |
b34976b6 | 385 | info->dynstr, strsize, TRUE)) |
252b5132 RH |
386 | { |
387 | if (info->canonical_dynsym != NULL) | |
388 | { | |
389 | bfd_release (abfd, info->canonical_dynsym); | |
390 | info->canonical_dynsym = NULL; | |
391 | } | |
392 | return -1; | |
393 | } | |
394 | } | |
395 | ||
396 | /* Return pointers to the dynamic asymbol structures. */ | |
397 | for (i = 0; i < info->dynsym_count; i++) | |
398 | *storage++ = (asymbol *) (info->canonical_dynsym + i); | |
399 | *storage = NULL; | |
400 | ||
401 | return info->dynsym_count; | |
402 | } | |
403 | ||
404 | /* Return the amount of memory required for the dynamic relocs. */ | |
405 | ||
406 | static long | |
116c20d2 | 407 | sunos_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
408 | { |
409 | struct sunos_dynamic_info *info; | |
410 | ||
411 | if (! sunos_read_dynamic_info (abfd)) | |
412 | return -1; | |
413 | ||
414 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
415 | if (! info->valid) | |
416 | { | |
417 | bfd_set_error (bfd_error_no_symbols); | |
418 | return -1; | |
419 | } | |
420 | ||
421 | return (info->dynrel_count + 1) * sizeof (arelent *); | |
422 | } | |
423 | ||
424 | /* Read in the dynamic relocs. */ | |
425 | ||
426 | static long | |
116c20d2 | 427 | sunos_canonicalize_dynamic_reloc (bfd *abfd, arelent **storage, asymbol **syms) |
252b5132 RH |
428 | { |
429 | struct sunos_dynamic_info *info; | |
430 | unsigned long i; | |
dc810e39 | 431 | bfd_size_type size; |
252b5132 RH |
432 | |
433 | /* Get the general dynamic information. */ | |
116c20d2 | 434 | if (obj_aout_dynamic_info (abfd) == NULL) |
252b5132 RH |
435 | { |
436 | if (! sunos_read_dynamic_info (abfd)) | |
437 | return -1; | |
438 | } | |
439 | ||
440 | info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
441 | if (! info->valid) | |
442 | { | |
443 | bfd_set_error (bfd_error_no_symbols); | |
444 | return -1; | |
445 | } | |
446 | ||
447 | /* Get the dynamic reloc information. */ | |
448 | if (info->dynrel == NULL) | |
449 | { | |
dc810e39 | 450 | size = (bfd_size_type) info->dynrel_count * obj_reloc_entry_size (abfd); |
116c20d2 | 451 | info->dynrel = bfd_alloc (abfd, size); |
dc810e39 | 452 | if (info->dynrel == NULL && size != 0) |
252b5132 | 453 | return -1; |
dc810e39 | 454 | if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_rel, SEEK_SET) != 0 |
116c20d2 | 455 | || bfd_bread ((void *) info->dynrel, size, abfd) != size) |
252b5132 RH |
456 | { |
457 | if (info->dynrel != NULL) | |
458 | { | |
459 | bfd_release (abfd, info->dynrel); | |
460 | info->dynrel = NULL; | |
461 | } | |
462 | return -1; | |
463 | } | |
464 | } | |
465 | ||
466 | /* Get the arelent structures corresponding to the dynamic reloc | |
467 | information. */ | |
116c20d2 | 468 | if (info->canonical_dynrel == NULL) |
252b5132 RH |
469 | { |
470 | arelent *to; | |
471 | ||
dc810e39 | 472 | size = (bfd_size_type) info->dynrel_count * sizeof (arelent); |
116c20d2 | 473 | info->canonical_dynrel = bfd_alloc (abfd, size); |
252b5132 RH |
474 | if (info->canonical_dynrel == NULL && info->dynrel_count != 0) |
475 | return -1; | |
7b82c249 | 476 | |
252b5132 RH |
477 | to = info->canonical_dynrel; |
478 | ||
479 | if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE) | |
480 | { | |
116c20d2 | 481 | struct reloc_ext_external *p; |
252b5132 RH |
482 | struct reloc_ext_external *pend; |
483 | ||
484 | p = (struct reloc_ext_external *) info->dynrel; | |
485 | pend = p + info->dynrel_count; | |
486 | for (; p < pend; p++, to++) | |
116c20d2 NC |
487 | NAME (aout, swap_ext_reloc_in) (abfd, p, to, syms, |
488 | (bfd_size_type) info->dynsym_count); | |
252b5132 RH |
489 | } |
490 | else | |
491 | { | |
116c20d2 | 492 | struct reloc_std_external *p; |
252b5132 RH |
493 | struct reloc_std_external *pend; |
494 | ||
495 | p = (struct reloc_std_external *) info->dynrel; | |
496 | pend = p + info->dynrel_count; | |
497 | for (; p < pend; p++, to++) | |
116c20d2 NC |
498 | NAME (aout, swap_std_reloc_in) (abfd, p, to, syms, |
499 | (bfd_size_type) info->dynsym_count); | |
252b5132 RH |
500 | } |
501 | } | |
502 | ||
503 | /* Return pointers to the dynamic arelent structures. */ | |
504 | for (i = 0; i < info->dynrel_count; i++) | |
505 | *storage++ = info->canonical_dynrel + i; | |
506 | *storage = NULL; | |
507 | ||
508 | return info->dynrel_count; | |
509 | } | |
510 | \f | |
511 | /* Code to handle linking of SunOS shared libraries. */ | |
512 | ||
513 | /* A SPARC procedure linkage table entry is 12 bytes. The first entry | |
514 | in the table is a jump which is filled in by the runtime linker. | |
515 | The remaining entries are branches back to the first entry, | |
516 | followed by an index into the relocation table encoded to look like | |
517 | a sethi of %g0. */ | |
518 | ||
519 | #define SPARC_PLT_ENTRY_SIZE (12) | |
520 | ||
521 | static const bfd_byte sparc_plt_first_entry[SPARC_PLT_ENTRY_SIZE] = | |
522 | { | |
523 | /* sethi %hi(0),%g1; address filled in by runtime linker. */ | |
524 | 0x3, 0, 0, 0, | |
525 | /* jmp %g1; offset filled in by runtime linker. */ | |
526 | 0x81, 0xc0, 0x60, 0, | |
527 | /* nop */ | |
528 | 0x1, 0, 0, 0 | |
529 | }; | |
530 | ||
531 | /* save %sp, -96, %sp */ | |
dc810e39 | 532 | #define SPARC_PLT_ENTRY_WORD0 ((bfd_vma) 0x9de3bfa0) |
252b5132 | 533 | /* call; address filled in later. */ |
dc810e39 | 534 | #define SPARC_PLT_ENTRY_WORD1 ((bfd_vma) 0x40000000) |
252b5132 | 535 | /* sethi; reloc index filled in later. */ |
dc810e39 | 536 | #define SPARC_PLT_ENTRY_WORD2 ((bfd_vma) 0x01000000) |
252b5132 RH |
537 | |
538 | /* This sequence is used when for the jump table entry to a defined | |
539 | symbol in a complete executable. It is used when linking PIC | |
540 | compiled code which is not being put into a shared library. */ | |
541 | /* sethi <address to be filled in later>, %g1 */ | |
dc810e39 | 542 | #define SPARC_PLT_PIC_WORD0 ((bfd_vma) 0x03000000) |
252b5132 | 543 | /* jmp %g1 + <address to be filled in later> */ |
dc810e39 | 544 | #define SPARC_PLT_PIC_WORD1 ((bfd_vma) 0x81c06000) |
252b5132 | 545 | /* nop */ |
dc810e39 | 546 | #define SPARC_PLT_PIC_WORD2 ((bfd_vma) 0x01000000) |
252b5132 RH |
547 | |
548 | /* An m68k procedure linkage table entry is 8 bytes. The first entry | |
549 | in the table is a jump which is filled in the by the runtime | |
550 | linker. The remaining entries are branches back to the first | |
551 | entry, followed by a two byte index into the relocation table. */ | |
552 | ||
553 | #define M68K_PLT_ENTRY_SIZE (8) | |
554 | ||
555 | static const bfd_byte m68k_plt_first_entry[M68K_PLT_ENTRY_SIZE] = | |
556 | { | |
557 | /* jmps @# */ | |
558 | 0x4e, 0xf9, | |
559 | /* Filled in by runtime linker with a magic address. */ | |
560 | 0, 0, 0, 0, | |
561 | /* Not used? */ | |
562 | 0, 0 | |
563 | }; | |
564 | ||
565 | /* bsrl */ | |
dc810e39 | 566 | #define M68K_PLT_ENTRY_WORD0 ((bfd_vma) 0x61ff) |
252b5132 RH |
567 | /* Remaining words filled in later. */ |
568 | ||
569 | /* An entry in the SunOS linker hash table. */ | |
570 | ||
571 | struct sunos_link_hash_entry | |
572 | { | |
573 | struct aout_link_hash_entry root; | |
574 | ||
575 | /* If this is a dynamic symbol, this is its index into the dynamic | |
576 | symbol table. This is initialized to -1. As the linker looks at | |
577 | the input files, it changes this to -2 if it will be added to the | |
578 | dynamic symbol table. After all the input files have been seen, | |
579 | the linker will know whether to build a dynamic symbol table; if | |
580 | it does build one, this becomes the index into the table. */ | |
581 | long dynindx; | |
582 | ||
583 | /* If this is a dynamic symbol, this is the index of the name in the | |
584 | dynamic symbol string table. */ | |
585 | long dynstr_index; | |
586 | ||
587 | /* The offset into the global offset table used for this symbol. If | |
588 | the symbol does not require a GOT entry, this is 0. */ | |
589 | bfd_vma got_offset; | |
590 | ||
591 | /* The offset into the procedure linkage table used for this symbol. | |
592 | If the symbol does not require a PLT entry, this is 0. */ | |
593 | bfd_vma plt_offset; | |
594 | ||
595 | /* Some linker flags. */ | |
596 | unsigned char flags; | |
597 | /* Symbol is referenced by a regular object. */ | |
598 | #define SUNOS_REF_REGULAR 01 | |
599 | /* Symbol is defined by a regular object. */ | |
600 | #define SUNOS_DEF_REGULAR 02 | |
601 | /* Symbol is referenced by a dynamic object. */ | |
602 | #define SUNOS_REF_DYNAMIC 04 | |
603 | /* Symbol is defined by a dynamic object. */ | |
604 | #define SUNOS_DEF_DYNAMIC 010 | |
605 | /* Symbol is a constructor symbol in a regular object. */ | |
606 | #define SUNOS_CONSTRUCTOR 020 | |
607 | }; | |
608 | ||
609 | /* The SunOS linker hash table. */ | |
610 | ||
611 | struct sunos_link_hash_table | |
612 | { | |
613 | struct aout_link_hash_table root; | |
614 | ||
615 | /* The object which holds the dynamic sections. */ | |
616 | bfd *dynobj; | |
617 | ||
618 | /* Whether we have created the dynamic sections. */ | |
b34976b6 | 619 | bfd_boolean dynamic_sections_created; |
252b5132 RH |
620 | |
621 | /* Whether we need the dynamic sections. */ | |
b34976b6 | 622 | bfd_boolean dynamic_sections_needed; |
252b5132 RH |
623 | |
624 | /* Whether we need the .got table. */ | |
b34976b6 | 625 | bfd_boolean got_needed; |
252b5132 RH |
626 | |
627 | /* The number of dynamic symbols. */ | |
628 | size_t dynsymcount; | |
629 | ||
630 | /* The number of buckets in the hash table. */ | |
631 | size_t bucketcount; | |
632 | ||
633 | /* The list of dynamic objects needed by dynamic objects included in | |
634 | the link. */ | |
635 | struct bfd_link_needed_list *needed; | |
636 | ||
637 | /* The offset of __GLOBAL_OFFSET_TABLE_ into the .got section. */ | |
638 | bfd_vma got_base; | |
639 | }; | |
640 | ||
641 | /* Routine to create an entry in an SunOS link hash table. */ | |
642 | ||
643 | static struct bfd_hash_entry * | |
116c20d2 NC |
644 | sunos_link_hash_newfunc (struct bfd_hash_entry *entry, |
645 | struct bfd_hash_table *table, | |
646 | const char *string) | |
252b5132 RH |
647 | { |
648 | struct sunos_link_hash_entry *ret = (struct sunos_link_hash_entry *) entry; | |
649 | ||
650 | /* Allocate the structure if it has not already been allocated by a | |
651 | subclass. */ | |
116c20d2 NC |
652 | if (ret == NULL) |
653 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
654 | if (ret == NULL) | |
655 | return NULL; | |
252b5132 RH |
656 | |
657 | /* Call the allocation method of the superclass. */ | |
658 | ret = ((struct sunos_link_hash_entry *) | |
116c20d2 NC |
659 | NAME (aout, link_hash_newfunc) ((struct bfd_hash_entry *) ret, |
660 | table, string)); | |
252b5132 RH |
661 | if (ret != NULL) |
662 | { | |
663 | /* Set local fields. */ | |
664 | ret->dynindx = -1; | |
665 | ret->dynstr_index = -1; | |
666 | ret->got_offset = 0; | |
667 | ret->plt_offset = 0; | |
668 | ret->flags = 0; | |
669 | } | |
670 | ||
671 | return (struct bfd_hash_entry *) ret; | |
672 | } | |
673 | ||
674 | /* Create a SunOS link hash table. */ | |
675 | ||
676 | static struct bfd_link_hash_table * | |
116c20d2 | 677 | sunos_link_hash_table_create (bfd *abfd) |
252b5132 RH |
678 | { |
679 | struct sunos_link_hash_table *ret; | |
dc810e39 | 680 | bfd_size_type amt = sizeof (struct sunos_link_hash_table); |
252b5132 | 681 | |
7bf52ea2 | 682 | ret = bfd_zmalloc (amt); |
116c20d2 NC |
683 | if (ret == NULL) |
684 | return NULL; | |
66eb6687 AM |
685 | if (!NAME (aout, link_hash_table_init) (&ret->root, abfd, |
686 | sunos_link_hash_newfunc, | |
687 | sizeof (struct sunos_link_hash_entry))) | |
252b5132 | 688 | { |
e2d34d7d | 689 | free (ret); |
116c20d2 | 690 | return NULL; |
252b5132 RH |
691 | } |
692 | ||
252b5132 RH |
693 | return &ret->root.root; |
694 | } | |
695 | ||
696 | /* Look up an entry in an SunOS link hash table. */ | |
697 | ||
698 | #define sunos_link_hash_lookup(table, string, create, copy, follow) \ | |
699 | ((struct sunos_link_hash_entry *) \ | |
700 | aout_link_hash_lookup (&(table)->root, (string), (create), (copy),\ | |
701 | (follow))) | |
702 | ||
703 | /* Traverse a SunOS link hash table. */ | |
704 | ||
705 | #define sunos_link_hash_traverse(table, func, info) \ | |
706 | (aout_link_hash_traverse \ | |
707 | (&(table)->root, \ | |
116c20d2 | 708 | (bfd_boolean (*) (struct aout_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
709 | (info))) |
710 | ||
711 | /* Get the SunOS link hash table from the info structure. This is | |
712 | just a cast. */ | |
713 | ||
714 | #define sunos_hash_table(p) ((struct sunos_link_hash_table *) ((p)->hash)) | |
715 | ||
252b5132 RH |
716 | /* Create the dynamic sections needed if we are linking against a |
717 | dynamic object, or if we are linking PIC compiled code. ABFD is a | |
718 | bfd we can attach the dynamic sections to. The linker script will | |
719 | look for these special sections names and put them in the right | |
720 | place in the output file. See include/aout/sun4.h for more details | |
721 | of the dynamic linking information. */ | |
722 | ||
b34976b6 | 723 | static bfd_boolean |
116c20d2 NC |
724 | sunos_create_dynamic_sections (bfd *abfd, |
725 | struct bfd_link_info *info, | |
726 | bfd_boolean needed) | |
252b5132 RH |
727 | { |
728 | asection *s; | |
729 | ||
730 | if (! sunos_hash_table (info)->dynamic_sections_created) | |
731 | { | |
732 | flagword flags; | |
733 | ||
734 | sunos_hash_table (info)->dynobj = abfd; | |
735 | ||
736 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
737 | | SEC_LINKER_CREATED); | |
738 | ||
739 | /* The .dynamic section holds the basic dynamic information: the | |
740 | sun4_dynamic structure, the dynamic debugger information, and | |
741 | the sun4_dynamic_link structure. */ | |
87e0a731 | 742 | s = bfd_make_section_anyway_with_flags (abfd, ".dynamic", flags); |
252b5132 | 743 | if (s == NULL |
252b5132 | 744 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 745 | return FALSE; |
252b5132 RH |
746 | |
747 | /* The .got section holds the global offset table. The address | |
748 | is put in the ld_got field. */ | |
87e0a731 | 749 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
252b5132 | 750 | if (s == NULL |
252b5132 | 751 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 752 | return FALSE; |
252b5132 RH |
753 | |
754 | /* The .plt section holds the procedure linkage table. The | |
755 | address is put in the ld_plt field. */ | |
87e0a731 | 756 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", flags | SEC_CODE); |
252b5132 | 757 | if (s == NULL |
252b5132 | 758 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 759 | return FALSE; |
252b5132 RH |
760 | |
761 | /* The .dynrel section holds the dynamic relocs. The address is | |
762 | put in the ld_rel field. */ | |
87e0a731 AM |
763 | s = bfd_make_section_anyway_with_flags (abfd, ".dynrel", |
764 | flags | SEC_READONLY); | |
252b5132 | 765 | if (s == NULL |
252b5132 | 766 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 767 | return FALSE; |
252b5132 RH |
768 | |
769 | /* The .hash section holds the dynamic hash table. The address | |
770 | is put in the ld_hash field. */ | |
87e0a731 AM |
771 | s = bfd_make_section_anyway_with_flags (abfd, ".hash", |
772 | flags | SEC_READONLY); | |
252b5132 | 773 | if (s == NULL |
252b5132 | 774 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 775 | return FALSE; |
252b5132 RH |
776 | |
777 | /* The .dynsym section holds the dynamic symbols. The address | |
778 | is put in the ld_stab field. */ | |
87e0a731 AM |
779 | s = bfd_make_section_anyway_with_flags (abfd, ".dynsym", |
780 | flags | SEC_READONLY); | |
252b5132 | 781 | if (s == NULL |
252b5132 | 782 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 783 | return FALSE; |
252b5132 RH |
784 | |
785 | /* The .dynstr section holds the dynamic symbol string table. | |
786 | The address is put in the ld_symbols field. */ | |
87e0a731 AM |
787 | s = bfd_make_section_anyway_with_flags (abfd, ".dynstr", |
788 | flags | SEC_READONLY); | |
252b5132 | 789 | if (s == NULL |
252b5132 | 790 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 791 | return FALSE; |
252b5132 | 792 | |
b34976b6 | 793 | sunos_hash_table (info)->dynamic_sections_created = TRUE; |
252b5132 RH |
794 | } |
795 | ||
796 | if ((needed && ! sunos_hash_table (info)->dynamic_sections_needed) | |
797 | || info->shared) | |
798 | { | |
799 | bfd *dynobj; | |
800 | ||
801 | dynobj = sunos_hash_table (info)->dynobj; | |
802 | ||
87e0a731 | 803 | s = bfd_get_linker_section (dynobj, ".got"); |
eea6121a AM |
804 | if (s->size == 0) |
805 | s->size = BYTES_IN_WORD; | |
252b5132 | 806 | |
b34976b6 AM |
807 | sunos_hash_table (info)->dynamic_sections_needed = TRUE; |
808 | sunos_hash_table (info)->got_needed = TRUE; | |
252b5132 RH |
809 | } |
810 | ||
b34976b6 | 811 | return TRUE; |
252b5132 RH |
812 | } |
813 | ||
814 | /* Add dynamic symbols during a link. This is called by the a.out | |
815 | backend linker for each object it encounters. */ | |
816 | ||
b34976b6 | 817 | static bfd_boolean |
116c20d2 NC |
818 | sunos_add_dynamic_symbols (bfd *abfd, |
819 | struct bfd_link_info *info, | |
820 | struct external_nlist **symsp, | |
821 | bfd_size_type *sym_countp, | |
822 | char **stringsp) | |
252b5132 | 823 | { |
252b5132 RH |
824 | bfd *dynobj; |
825 | struct sunos_dynamic_info *dinfo; | |
826 | unsigned long need; | |
827 | ||
828 | /* Make sure we have all the required sections. */ | |
f13a99db | 829 | if (info->output_bfd->xvec == abfd->xvec) |
252b5132 RH |
830 | { |
831 | if (! sunos_create_dynamic_sections (abfd, info, | |
b34976b6 | 832 | ((abfd->flags & DYNAMIC) != 0 |
1049f94e | 833 | && !info->relocatable))) |
b34976b6 | 834 | return FALSE; |
252b5132 RH |
835 | } |
836 | ||
837 | /* There is nothing else to do for a normal object. */ | |
838 | if ((abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 839 | return TRUE; |
252b5132 RH |
840 | |
841 | dynobj = sunos_hash_table (info)->dynobj; | |
842 | ||
843 | /* We do not want to include the sections in a dynamic object in the | |
844 | output file. We hack by simply clobbering the list of sections | |
845 | in the BFD. This could be handled more cleanly by, say, a new | |
846 | section flag; the existing SEC_NEVER_LOAD flag is not the one we | |
847 | want, because that one still implies that the section takes up | |
848 | space in the output file. If this is the first object we have | |
849 | seen, we must preserve the dynamic sections we just created. */ | |
5daa8fe7 L |
850 | if (abfd != dynobj) |
851 | abfd->sections = NULL; | |
852 | else | |
252b5132 | 853 | { |
04dd1667 | 854 | asection *s; |
5daa8fe7 | 855 | |
04dd1667 | 856 | for (s = abfd->sections; s != NULL; s = s->next) |
5daa8fe7 | 857 | { |
5daa8fe7 L |
858 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
859 | bfd_section_list_remove (abfd, s); | |
860 | } | |
252b5132 RH |
861 | } |
862 | ||
863 | /* The native linker seems to just ignore dynamic objects when -r is | |
864 | used. */ | |
1049f94e | 865 | if (info->relocatable) |
b34976b6 | 866 | return TRUE; |
252b5132 RH |
867 | |
868 | /* There's no hope of using a dynamic object which does not exactly | |
869 | match the format of the output file. */ | |
f13a99db | 870 | if (info->output_bfd->xvec != abfd->xvec) |
252b5132 RH |
871 | { |
872 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 873 | return FALSE; |
252b5132 RH |
874 | } |
875 | ||
876 | /* Make sure we have a .need and a .rules sections. These are only | |
877 | needed if there really is a dynamic object in the link, so they | |
878 | are not added by sunos_create_dynamic_sections. */ | |
879 | if (bfd_get_section_by_name (dynobj, ".need") == NULL) | |
880 | { | |
881 | /* The .need section holds the list of names of shared objets | |
882 | which must be included at runtime. The address of this | |
883 | section is put in the ld_need field. */ | |
117ed4f8 AM |
884 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
885 | | SEC_IN_MEMORY | SEC_READONLY); | |
886 | asection *s = bfd_make_section_with_flags (dynobj, ".need", flags); | |
252b5132 | 887 | if (s == NULL |
252b5132 | 888 | || ! bfd_set_section_alignment (dynobj, s, 2)) |
b34976b6 | 889 | return FALSE; |
252b5132 RH |
890 | } |
891 | ||
892 | if (bfd_get_section_by_name (dynobj, ".rules") == NULL) | |
893 | { | |
894 | /* The .rules section holds the path to search for shared | |
895 | objects. The address of this section is put in the ld_rules | |
896 | field. */ | |
117ed4f8 AM |
897 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
898 | | SEC_IN_MEMORY | SEC_READONLY); | |
899 | asection *s = bfd_make_section_with_flags (dynobj, ".rules", flags); | |
252b5132 | 900 | if (s == NULL |
252b5132 | 901 | || ! bfd_set_section_alignment (dynobj, s, 2)) |
b34976b6 | 902 | return FALSE; |
252b5132 RH |
903 | } |
904 | ||
905 | /* Pick up the dynamic symbols and return them to the caller. */ | |
906 | if (! sunos_slurp_dynamic_symtab (abfd)) | |
b34976b6 | 907 | return FALSE; |
252b5132 RH |
908 | |
909 | dinfo = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
910 | *symsp = dinfo->dynsym; | |
911 | *sym_countp = dinfo->dynsym_count; | |
912 | *stringsp = dinfo->dynstr; | |
913 | ||
914 | /* Record information about any other objects needed by this one. */ | |
915 | need = dinfo->dyninfo.ld_need; | |
916 | while (need != 0) | |
917 | { | |
918 | bfd_byte buf[16]; | |
919 | unsigned long name, flags; | |
920 | unsigned short major_vno, minor_vno; | |
921 | struct bfd_link_needed_list *needed, **pp; | |
922 | char *namebuf, *p; | |
dc810e39 | 923 | bfd_size_type alc; |
252b5132 RH |
924 | bfd_byte b; |
925 | char *namecopy; | |
926 | ||
dc810e39 AM |
927 | if (bfd_seek (abfd, (file_ptr) need, SEEK_SET) != 0 |
928 | || bfd_bread (buf, (bfd_size_type) 16, abfd) != 16) | |
b34976b6 | 929 | return FALSE; |
252b5132 RH |
930 | |
931 | /* For the format of an ld_need entry, see aout/sun4.h. We | |
b34976b6 | 932 | should probably define structs for this manipulation. */ |
252b5132 RH |
933 | name = bfd_get_32 (abfd, buf); |
934 | flags = bfd_get_32 (abfd, buf + 4); | |
dc810e39 AM |
935 | major_vno = (unsigned short) bfd_get_16 (abfd, buf + 8); |
936 | minor_vno = (unsigned short) bfd_get_16 (abfd, buf + 10); | |
252b5132 RH |
937 | need = bfd_get_32 (abfd, buf + 12); |
938 | ||
dc810e39 | 939 | alc = sizeof (struct bfd_link_needed_list); |
116c20d2 | 940 | needed = bfd_alloc (abfd, alc); |
252b5132 | 941 | if (needed == NULL) |
b34976b6 | 942 | return FALSE; |
252b5132 RH |
943 | needed->by = abfd; |
944 | ||
945 | /* We return the name as [-l]name[.maj][.min]. */ | |
946 | alc = 30; | |
116c20d2 | 947 | namebuf = bfd_malloc (alc + 1); |
252b5132 | 948 | if (namebuf == NULL) |
b34976b6 | 949 | return FALSE; |
252b5132 RH |
950 | p = namebuf; |
951 | ||
952 | if ((flags & 0x80000000) != 0) | |
953 | { | |
954 | *p++ = '-'; | |
955 | *p++ = 'l'; | |
956 | } | |
dc810e39 | 957 | if (bfd_seek (abfd, (file_ptr) name, SEEK_SET) != 0) |
252b5132 RH |
958 | { |
959 | free (namebuf); | |
b34976b6 | 960 | return FALSE; |
252b5132 RH |
961 | } |
962 | ||
963 | do | |
964 | { | |
dc810e39 | 965 | if (bfd_bread (&b, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
966 | { |
967 | free (namebuf); | |
b34976b6 | 968 | return FALSE; |
252b5132 RH |
969 | } |
970 | ||
dc810e39 | 971 | if ((bfd_size_type) (p - namebuf) >= alc) |
252b5132 RH |
972 | { |
973 | char *n; | |
974 | ||
975 | alc *= 2; | |
116c20d2 | 976 | n = bfd_realloc (namebuf, alc + 1); |
252b5132 RH |
977 | if (n == NULL) |
978 | { | |
979 | free (namebuf); | |
b34976b6 | 980 | return FALSE; |
252b5132 RH |
981 | } |
982 | p = n + (p - namebuf); | |
983 | namebuf = n; | |
984 | } | |
985 | ||
986 | *p++ = b; | |
987 | } | |
988 | while (b != '\0'); | |
989 | ||
990 | if (major_vno == 0) | |
991 | *p = '\0'; | |
992 | else | |
993 | { | |
994 | char majbuf[30]; | |
995 | char minbuf[30]; | |
996 | ||
997 | sprintf (majbuf, ".%d", major_vno); | |
998 | if (minor_vno == 0) | |
999 | minbuf[0] = '\0'; | |
1000 | else | |
1001 | sprintf (minbuf, ".%d", minor_vno); | |
1002 | ||
1003 | if ((p - namebuf) + strlen (majbuf) + strlen (minbuf) >= alc) | |
1004 | { | |
1005 | char *n; | |
1006 | ||
1007 | alc = (p - namebuf) + strlen (majbuf) + strlen (minbuf); | |
116c20d2 | 1008 | n = bfd_realloc (namebuf, alc + 1); |
252b5132 RH |
1009 | if (n == NULL) |
1010 | { | |
1011 | free (namebuf); | |
b34976b6 | 1012 | return FALSE; |
252b5132 RH |
1013 | } |
1014 | p = n + (p - namebuf); | |
1015 | namebuf = n; | |
1016 | } | |
1017 | ||
1018 | strcpy (p, majbuf); | |
1019 | strcat (p, minbuf); | |
1020 | } | |
1021 | ||
dc810e39 | 1022 | namecopy = bfd_alloc (abfd, (bfd_size_type) strlen (namebuf) + 1); |
252b5132 RH |
1023 | if (namecopy == NULL) |
1024 | { | |
1025 | free (namebuf); | |
b34976b6 | 1026 | return FALSE; |
252b5132 RH |
1027 | } |
1028 | strcpy (namecopy, namebuf); | |
1029 | free (namebuf); | |
1030 | needed->name = namecopy; | |
1031 | ||
1032 | needed->next = NULL; | |
1033 | ||
1034 | for (pp = &sunos_hash_table (info)->needed; | |
1035 | *pp != NULL; | |
1036 | pp = &(*pp)->next) | |
1037 | ; | |
1038 | *pp = needed; | |
1039 | } | |
1040 | ||
b34976b6 | 1041 | return TRUE; |
252b5132 RH |
1042 | } |
1043 | ||
1044 | /* Function to add a single symbol to the linker hash table. This is | |
1045 | a wrapper around _bfd_generic_link_add_one_symbol which handles the | |
1046 | tweaking needed for dynamic linking support. */ | |
1047 | ||
b34976b6 | 1048 | static bfd_boolean |
116c20d2 NC |
1049 | sunos_add_one_symbol (struct bfd_link_info *info, |
1050 | bfd *abfd, | |
1051 | const char *name, | |
1052 | flagword flags, | |
1053 | asection *section, | |
1054 | bfd_vma value, | |
1055 | const char *string, | |
1056 | bfd_boolean copy, | |
1057 | bfd_boolean collect, | |
1058 | struct bfd_link_hash_entry **hashp) | |
252b5132 RH |
1059 | { |
1060 | struct sunos_link_hash_entry *h; | |
1061 | int new_flag; | |
1062 | ||
1063 | if ((flags & (BSF_INDIRECT | BSF_WARNING | BSF_CONSTRUCTOR)) != 0 | |
1064 | || ! bfd_is_und_section (section)) | |
b34976b6 AM |
1065 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, TRUE, copy, |
1066 | FALSE); | |
252b5132 RH |
1067 | else |
1068 | h = ((struct sunos_link_hash_entry *) | |
b34976b6 | 1069 | bfd_wrapped_link_hash_lookup (abfd, info, name, TRUE, copy, FALSE)); |
252b5132 | 1070 | if (h == NULL) |
b34976b6 | 1071 | return FALSE; |
252b5132 RH |
1072 | |
1073 | if (hashp != NULL) | |
1074 | *hashp = (struct bfd_link_hash_entry *) h; | |
1075 | ||
1076 | /* Treat a common symbol in a dynamic object as defined in the .bss | |
1077 | section of the dynamic object. We don't want to allocate space | |
1078 | for it in our process image. */ | |
1079 | if ((abfd->flags & DYNAMIC) != 0 | |
1080 | && bfd_is_com_section (section)) | |
1081 | section = obj_bsssec (abfd); | |
1082 | ||
1083 | if (! bfd_is_und_section (section) | |
1084 | && h->root.root.type != bfd_link_hash_new | |
1085 | && h->root.root.type != bfd_link_hash_undefined | |
1086 | && h->root.root.type != bfd_link_hash_defweak) | |
1087 | { | |
1088 | /* We are defining the symbol, and it is already defined. This | |
1089 | is a potential multiple definition error. */ | |
1090 | if ((abfd->flags & DYNAMIC) != 0) | |
1091 | { | |
1092 | /* The definition we are adding is from a dynamic object. | |
1093 | We do not want this new definition to override the | |
1094 | existing definition, so we pretend it is just a | |
1095 | reference. */ | |
1096 | section = bfd_und_section_ptr; | |
1097 | } | |
1098 | else if (h->root.root.type == bfd_link_hash_defined | |
1099 | && h->root.root.u.def.section->owner != NULL | |
1100 | && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
1101 | { | |
1102 | /* The existing definition is from a dynamic object. We | |
1103 | want to override it with the definition we just found. | |
1104 | Clobber the existing definition. */ | |
1105 | h->root.root.type = bfd_link_hash_undefined; | |
1106 | h->root.root.u.undef.abfd = h->root.root.u.def.section->owner; | |
1107 | } | |
1108 | else if (h->root.root.type == bfd_link_hash_common | |
1109 | && (h->root.root.u.c.p->section->owner->flags & DYNAMIC) != 0) | |
1110 | { | |
1111 | /* The existing definition is from a dynamic object. We | |
1112 | want to override it with the definition we just found. | |
1113 | Clobber the existing definition. We can't set it to new, | |
1114 | because it is on the undefined list. */ | |
1115 | h->root.root.type = bfd_link_hash_undefined; | |
1116 | h->root.root.u.undef.abfd = h->root.root.u.c.p->section->owner; | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | if ((abfd->flags & DYNAMIC) != 0 | |
f13a99db | 1121 | && abfd->xvec == info->output_bfd->xvec |
252b5132 | 1122 | && (h->flags & SUNOS_CONSTRUCTOR) != 0) |
116c20d2 NC |
1123 | /* The existing symbol is a constructor symbol, and this symbol |
1124 | is from a dynamic object. A constructor symbol is actually a | |
1125 | definition, although the type will be bfd_link_hash_undefined | |
1126 | at this point. We want to ignore the definition from the | |
1127 | dynamic object. */ | |
1128 | section = bfd_und_section_ptr; | |
252b5132 RH |
1129 | else if ((flags & BSF_CONSTRUCTOR) != 0 |
1130 | && (abfd->flags & DYNAMIC) == 0 | |
1131 | && h->root.root.type == bfd_link_hash_defined | |
1132 | && h->root.root.u.def.section->owner != NULL | |
1133 | && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
116c20d2 NC |
1134 | /* The existing symbol is defined by a dynamic object, and this |
1135 | is a constructor symbol. As above, we want to force the use | |
1136 | of the constructor symbol from the regular object. */ | |
1137 | h->root.root.type = bfd_link_hash_new; | |
252b5132 RH |
1138 | |
1139 | /* Do the usual procedure for adding a symbol. */ | |
1140 | if (! _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, | |
1141 | value, string, copy, collect, | |
1142 | hashp)) | |
b34976b6 | 1143 | return FALSE; |
252b5132 | 1144 | |
f13a99db | 1145 | if (abfd->xvec == info->output_bfd->xvec) |
252b5132 RH |
1146 | { |
1147 | /* Set a flag in the hash table entry indicating the type of | |
1148 | reference or definition we just found. Keep a count of the | |
1149 | number of dynamic symbols we find. A dynamic symbol is one | |
1150 | which is referenced or defined by both a regular object and a | |
1151 | shared object. */ | |
1152 | if ((abfd->flags & DYNAMIC) == 0) | |
1153 | { | |
1154 | if (bfd_is_und_section (section)) | |
1155 | new_flag = SUNOS_REF_REGULAR; | |
1156 | else | |
1157 | new_flag = SUNOS_DEF_REGULAR; | |
1158 | } | |
1159 | else | |
1160 | { | |
1161 | if (bfd_is_und_section (section)) | |
1162 | new_flag = SUNOS_REF_DYNAMIC; | |
1163 | else | |
1164 | new_flag = SUNOS_DEF_DYNAMIC; | |
1165 | } | |
1166 | h->flags |= new_flag; | |
1167 | ||
1168 | if (h->dynindx == -1 | |
1169 | && (h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1170 | { | |
1171 | ++sunos_hash_table (info)->dynsymcount; | |
1172 | h->dynindx = -2; | |
1173 | } | |
1174 | ||
1175 | if ((flags & BSF_CONSTRUCTOR) != 0 | |
1176 | && (abfd->flags & DYNAMIC) == 0) | |
1177 | h->flags |= SUNOS_CONSTRUCTOR; | |
1178 | } | |
1179 | ||
b34976b6 | 1180 | return TRUE; |
252b5132 RH |
1181 | } |
1182 | ||
116c20d2 NC |
1183 | extern const bfd_target MY (vec); |
1184 | ||
252b5132 RH |
1185 | /* Return the list of objects needed by BFD. */ |
1186 | ||
252b5132 | 1187 | struct bfd_link_needed_list * |
116c20d2 NC |
1188 | bfd_sunos_get_needed_list (bfd *abfd ATTRIBUTE_UNUSED, |
1189 | struct bfd_link_info *info) | |
252b5132 | 1190 | { |
f13a99db | 1191 | if (info->output_bfd->xvec != &MY (vec)) |
252b5132 RH |
1192 | return NULL; |
1193 | return sunos_hash_table (info)->needed; | |
1194 | } | |
1195 | ||
1196 | /* Record an assignment made to a symbol by a linker script. We need | |
1197 | this in case some dynamic object refers to this symbol. */ | |
1198 | ||
b34976b6 | 1199 | bfd_boolean |
116c20d2 NC |
1200 | bfd_sunos_record_link_assignment (bfd *output_bfd, |
1201 | struct bfd_link_info *info, | |
1202 | const char *name) | |
252b5132 RH |
1203 | { |
1204 | struct sunos_link_hash_entry *h; | |
1205 | ||
1206 | if (output_bfd->xvec != &MY(vec)) | |
b34976b6 | 1207 | return TRUE; |
252b5132 RH |
1208 | |
1209 | /* This is called after we have examined all the input objects. If | |
1210 | the symbol does not exist, it merely means that no object refers | |
1211 | to it, and we can just ignore it at this point. */ | |
1212 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, | |
b34976b6 | 1213 | FALSE, FALSE, FALSE); |
252b5132 | 1214 | if (h == NULL) |
b34976b6 | 1215 | return TRUE; |
252b5132 RH |
1216 | |
1217 | /* In a shared library, the __DYNAMIC symbol does not appear in the | |
1218 | dynamic symbol table. */ | |
1219 | if (! info->shared || strcmp (name, "__DYNAMIC") != 0) | |
1220 | { | |
1221 | h->flags |= SUNOS_DEF_REGULAR; | |
1222 | ||
1223 | if (h->dynindx == -1) | |
1224 | { | |
1225 | ++sunos_hash_table (info)->dynsymcount; | |
1226 | h->dynindx = -2; | |
1227 | } | |
1228 | } | |
1229 | ||
b34976b6 | 1230 | return TRUE; |
252b5132 RH |
1231 | } |
1232 | ||
116c20d2 NC |
1233 | /* Scan the relocs for an input section using standard relocs. We |
1234 | need to figure out what to do for each reloc against a dynamic | |
1235 | symbol. If the symbol is in the .text section, an entry is made in | |
1236 | the procedure linkage table. Note that this will do the wrong | |
1237 | thing if the symbol is actually data; I don't think the Sun 3 | |
1238 | native linker handles this case correctly either. If the symbol is | |
1239 | not in the .text section, we must preserve the reloc as a dynamic | |
1240 | reloc. FIXME: We should also handle the PIC relocs here by | |
1241 | building global offset table entries. */ | |
252b5132 | 1242 | |
116c20d2 NC |
1243 | static bfd_boolean |
1244 | sunos_scan_std_relocs (struct bfd_link_info *info, | |
1245 | bfd *abfd, | |
1246 | asection *sec ATTRIBUTE_UNUSED, | |
1247 | const struct reloc_std_external *relocs, | |
1248 | bfd_size_type rel_size) | |
252b5132 RH |
1249 | { |
1250 | bfd *dynobj; | |
116c20d2 NC |
1251 | asection *splt = NULL; |
1252 | asection *srel = NULL; | |
1253 | struct sunos_link_hash_entry **sym_hashes; | |
1254 | const struct reloc_std_external *rel, *relend; | |
252b5132 | 1255 | |
116c20d2 NC |
1256 | /* We only know how to handle m68k plt entries. */ |
1257 | if (bfd_get_arch (abfd) != bfd_arch_m68k) | |
252b5132 | 1258 | { |
116c20d2 NC |
1259 | bfd_set_error (bfd_error_invalid_target); |
1260 | return FALSE; | |
252b5132 RH |
1261 | } |
1262 | ||
116c20d2 | 1263 | dynobj = NULL; |
252b5132 | 1264 | |
116c20d2 | 1265 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); |
252b5132 | 1266 | |
116c20d2 NC |
1267 | relend = relocs + rel_size / RELOC_STD_SIZE; |
1268 | for (rel = relocs; rel < relend; rel++) | |
252b5132 | 1269 | { |
116c20d2 NC |
1270 | int r_index; |
1271 | struct sunos_link_hash_entry *h; | |
1272 | ||
1273 | /* We only want relocs against external symbols. */ | |
1274 | if (bfd_header_big_endian (abfd)) | |
252b5132 | 1275 | { |
116c20d2 NC |
1276 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG) == 0) |
1277 | continue; | |
252b5132 | 1278 | } |
252b5132 | 1279 | else |
116c20d2 NC |
1280 | { |
1281 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE) == 0) | |
1282 | continue; | |
1283 | } | |
7b82c249 | 1284 | |
116c20d2 NC |
1285 | /* Get the symbol index. */ |
1286 | if (bfd_header_big_endian (abfd)) | |
1287 | r_index = ((rel->r_index[0] << 16) | |
1288 | | (rel->r_index[1] << 8) | |
1289 | | rel->r_index[2]); | |
252b5132 | 1290 | else |
116c20d2 NC |
1291 | r_index = ((rel->r_index[2] << 16) |
1292 | | (rel->r_index[1] << 8) | |
1293 | | rel->r_index[0]); | |
252b5132 | 1294 | |
116c20d2 NC |
1295 | /* Get the hash table entry. */ |
1296 | h = sym_hashes[r_index]; | |
1297 | if (h == NULL) | |
1298 | /* This should not normally happen, but it will in any case | |
1299 | be caught in the relocation phase. */ | |
1300 | continue; | |
252b5132 | 1301 | |
116c20d2 NC |
1302 | /* At this point common symbols have already been allocated, so |
1303 | we don't have to worry about them. We need to consider that | |
1304 | we may have already seen this symbol and marked it undefined; | |
1305 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC | |
1306 | will be zero. */ | |
1307 | if (h->root.root.type != bfd_link_hash_defined | |
1308 | && h->root.root.type != bfd_link_hash_defweak | |
1309 | && h->root.root.type != bfd_link_hash_undefined) | |
1310 | continue; | |
252b5132 | 1311 | |
116c20d2 NC |
1312 | if ((h->flags & SUNOS_DEF_DYNAMIC) == 0 |
1313 | || (h->flags & SUNOS_DEF_REGULAR) != 0) | |
1314 | continue; | |
1315 | ||
1316 | if (dynobj == NULL) | |
252b5132 | 1317 | { |
116c20d2 | 1318 | asection *sgot; |
252b5132 | 1319 | |
116c20d2 | 1320 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
b34976b6 | 1321 | return FALSE; |
116c20d2 | 1322 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1323 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1324 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
116c20d2 NC |
1325 | BFD_ASSERT (splt != NULL && srel != NULL); |
1326 | ||
87e0a731 | 1327 | sgot = bfd_get_linker_section (dynobj, ".got"); |
116c20d2 NC |
1328 | BFD_ASSERT (sgot != NULL); |
1329 | if (sgot->size == 0) | |
1330 | sgot->size = BYTES_IN_WORD; | |
1331 | sunos_hash_table (info)->got_needed = TRUE; | |
252b5132 | 1332 | } |
252b5132 | 1333 | |
116c20d2 NC |
1334 | BFD_ASSERT ((h->flags & SUNOS_REF_REGULAR) != 0); |
1335 | BFD_ASSERT (h->plt_offset != 0 | |
1336 | || ((h->root.root.type == bfd_link_hash_defined | |
1337 | || h->root.root.type == bfd_link_hash_defweak) | |
1338 | ? (h->root.root.u.def.section->owner->flags | |
1339 | & DYNAMIC) != 0 | |
1340 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
252b5132 | 1341 | |
116c20d2 NC |
1342 | /* This reloc is against a symbol defined only by a dynamic |
1343 | object. */ | |
1344 | if (h->root.root.type == bfd_link_hash_undefined) | |
1345 | /* Presumably this symbol was marked as being undefined by | |
1346 | an earlier reloc. */ | |
1347 | srel->size += RELOC_STD_SIZE; | |
1348 | else if ((h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
252b5132 | 1349 | { |
116c20d2 | 1350 | bfd *sub; |
252b5132 RH |
1351 | |
1352 | /* This reloc is not in the .text section. It must be | |
1353 | copied into the dynamic relocs. We mark the symbol as | |
1354 | being undefined. */ | |
eea6121a | 1355 | srel->size += RELOC_STD_SIZE; |
252b5132 RH |
1356 | sub = h->root.root.u.def.section->owner; |
1357 | h->root.root.type = bfd_link_hash_undefined; | |
1358 | h->root.root.u.undef.abfd = sub; | |
1359 | } | |
1360 | else | |
1361 | { | |
1362 | /* This symbol is in the .text section. We must give it an | |
1363 | entry in the procedure linkage table, if we have not | |
1364 | already done so. We change the definition of the symbol | |
1365 | to the .plt section; this will cause relocs against it to | |
1366 | be handled correctly. */ | |
1367 | if (h->plt_offset == 0) | |
1368 | { | |
eea6121a AM |
1369 | if (splt->size == 0) |
1370 | splt->size = M68K_PLT_ENTRY_SIZE; | |
1371 | h->plt_offset = splt->size; | |
252b5132 RH |
1372 | |
1373 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1374 | { | |
1375 | h->root.root.u.def.section = splt; | |
eea6121a | 1376 | h->root.root.u.def.value = splt->size; |
252b5132 RH |
1377 | } |
1378 | ||
eea6121a | 1379 | splt->size += M68K_PLT_ENTRY_SIZE; |
252b5132 RH |
1380 | |
1381 | /* We may also need a dynamic reloc entry. */ | |
1382 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
eea6121a | 1383 | srel->size += RELOC_STD_SIZE; |
252b5132 RH |
1384 | } |
1385 | } | |
1386 | } | |
1387 | ||
b34976b6 | 1388 | return TRUE; |
252b5132 RH |
1389 | } |
1390 | ||
1391 | /* Scan the relocs for an input section using extended relocs. We | |
1392 | need to figure out what to do for each reloc against a dynamic | |
1393 | symbol. If the reloc is a WDISP30, and the symbol is in the .text | |
1394 | section, an entry is made in the procedure linkage table. | |
1395 | Otherwise, we must preserve the reloc as a dynamic reloc. */ | |
1396 | ||
b34976b6 | 1397 | static bfd_boolean |
116c20d2 NC |
1398 | sunos_scan_ext_relocs (struct bfd_link_info *info, |
1399 | bfd *abfd, | |
1400 | asection *sec ATTRIBUTE_UNUSED, | |
1401 | const struct reloc_ext_external *relocs, | |
1402 | bfd_size_type rel_size) | |
252b5132 RH |
1403 | { |
1404 | bfd *dynobj; | |
1405 | struct sunos_link_hash_entry **sym_hashes; | |
1406 | const struct reloc_ext_external *rel, *relend; | |
1407 | asection *splt = NULL; | |
1408 | asection *sgot = NULL; | |
1409 | asection *srel = NULL; | |
dc810e39 | 1410 | bfd_size_type amt; |
252b5132 RH |
1411 | |
1412 | /* We only know how to handle SPARC plt entries. */ | |
1413 | if (bfd_get_arch (abfd) != bfd_arch_sparc) | |
1414 | { | |
1415 | bfd_set_error (bfd_error_invalid_target); | |
b34976b6 | 1416 | return FALSE; |
252b5132 RH |
1417 | } |
1418 | ||
1419 | dynobj = NULL; | |
1420 | ||
1421 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); | |
1422 | ||
1423 | relend = relocs + rel_size / RELOC_EXT_SIZE; | |
1424 | for (rel = relocs; rel < relend; rel++) | |
1425 | { | |
1426 | unsigned int r_index; | |
1427 | int r_extern; | |
1428 | int r_type; | |
1429 | struct sunos_link_hash_entry *h = NULL; | |
1430 | ||
1431 | /* Swap in the reloc information. */ | |
1432 | if (bfd_header_big_endian (abfd)) | |
1433 | { | |
1434 | r_index = ((rel->r_index[0] << 16) | |
1435 | | (rel->r_index[1] << 8) | |
1436 | | rel->r_index[2]); | |
1437 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG)); | |
1438 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
1439 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | r_index = ((rel->r_index[2] << 16) | |
1444 | | (rel->r_index[1] << 8) | |
1445 | | rel->r_index[0]); | |
1446 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); | |
1447 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
1448 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
1449 | } | |
1450 | ||
1451 | if (r_extern) | |
1452 | { | |
1453 | h = sym_hashes[r_index]; | |
1454 | if (h == NULL) | |
1455 | { | |
1456 | /* This should not normally happen, but it will in any | |
1457 | case be caught in the relocation phase. */ | |
1458 | continue; | |
1459 | } | |
1460 | } | |
1461 | ||
1462 | /* If this is a base relative reloc, we need to make an entry in | |
b34976b6 | 1463 | the .got section. */ |
252b5132 RH |
1464 | if (r_type == RELOC_BASE10 |
1465 | || r_type == RELOC_BASE13 | |
1466 | || r_type == RELOC_BASE22) | |
1467 | { | |
1468 | if (dynobj == NULL) | |
1469 | { | |
b34976b6 AM |
1470 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
1471 | return FALSE; | |
252b5132 | 1472 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1473 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1474 | sgot = bfd_get_linker_section (dynobj, ".got"); | |
1475 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
252b5132 RH |
1476 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
1477 | ||
1478 | /* Make sure we have an initial entry in the .got table. */ | |
eea6121a AM |
1479 | if (sgot->size == 0) |
1480 | sgot->size = BYTES_IN_WORD; | |
b34976b6 | 1481 | sunos_hash_table (info)->got_needed = TRUE; |
252b5132 RH |
1482 | } |
1483 | ||
1484 | if (r_extern) | |
1485 | { | |
1486 | if (h->got_offset != 0) | |
1487 | continue; | |
1488 | ||
eea6121a | 1489 | h->got_offset = sgot->size; |
252b5132 RH |
1490 | } |
1491 | else | |
1492 | { | |
1493 | if (r_index >= bfd_get_symcount (abfd)) | |
116c20d2 NC |
1494 | /* This is abnormal, but should be caught in the |
1495 | relocation phase. */ | |
1496 | continue; | |
252b5132 RH |
1497 | |
1498 | if (adata (abfd).local_got_offsets == NULL) | |
1499 | { | |
dc810e39 AM |
1500 | amt = bfd_get_symcount (abfd); |
1501 | amt *= sizeof (bfd_vma); | |
116c20d2 | 1502 | adata (abfd).local_got_offsets = bfd_zalloc (abfd, amt); |
252b5132 | 1503 | if (adata (abfd).local_got_offsets == NULL) |
b34976b6 | 1504 | return FALSE; |
252b5132 RH |
1505 | } |
1506 | ||
1507 | if (adata (abfd).local_got_offsets[r_index] != 0) | |
1508 | continue; | |
1509 | ||
eea6121a | 1510 | adata (abfd).local_got_offsets[r_index] = sgot->size; |
252b5132 RH |
1511 | } |
1512 | ||
eea6121a | 1513 | sgot->size += BYTES_IN_WORD; |
252b5132 RH |
1514 | |
1515 | /* If we are making a shared library, or if the symbol is | |
1516 | defined by a dynamic object, we will need a dynamic reloc | |
1517 | entry. */ | |
1518 | if (info->shared | |
1519 | || (h != NULL | |
1520 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1521 | && (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
eea6121a | 1522 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1523 | |
1524 | continue; | |
1525 | } | |
1526 | ||
1527 | /* Otherwise, we are only interested in relocs against symbols | |
b34976b6 AM |
1528 | defined in dynamic objects but not in regular objects. We |
1529 | only need to consider relocs against external symbols. */ | |
252b5132 RH |
1530 | if (! r_extern) |
1531 | { | |
1532 | /* But, if we are creating a shared library, we need to | |
b34976b6 | 1533 | generate an absolute reloc. */ |
252b5132 RH |
1534 | if (info->shared) |
1535 | { | |
1536 | if (dynobj == NULL) | |
1537 | { | |
b34976b6 AM |
1538 | if (! sunos_create_dynamic_sections (abfd, info, TRUE)) |
1539 | return FALSE; | |
252b5132 | 1540 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1541 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1542 | sgot = bfd_get_linker_section (dynobj, ".got"); | |
1543 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
252b5132 RH |
1544 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
1545 | } | |
1546 | ||
eea6121a | 1547 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1548 | } |
1549 | ||
1550 | continue; | |
1551 | } | |
1552 | ||
1553 | /* At this point common symbols have already been allocated, so | |
1554 | we don't have to worry about them. We need to consider that | |
1555 | we may have already seen this symbol and marked it undefined; | |
1556 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC | |
1557 | will be zero. */ | |
1558 | if (h->root.root.type != bfd_link_hash_defined | |
1559 | && h->root.root.type != bfd_link_hash_defweak | |
1560 | && h->root.root.type != bfd_link_hash_undefined) | |
1561 | continue; | |
1562 | ||
1563 | if (r_type != RELOC_JMP_TBL | |
1564 | && ! info->shared | |
1565 | && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1566 | || (h->flags & SUNOS_DEF_REGULAR) != 0)) | |
1567 | continue; | |
1568 | ||
1569 | if (r_type == RELOC_JMP_TBL | |
1570 | && ! info->shared | |
1571 | && (h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1572 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
1573 | { | |
1574 | /* This symbol is apparently undefined. Don't do anything | |
b34976b6 AM |
1575 | here; just let the relocation routine report an undefined |
1576 | symbol. */ | |
252b5132 RH |
1577 | continue; |
1578 | } | |
1579 | ||
1580 | if (strcmp (h->root.root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0) | |
1581 | continue; | |
1582 | ||
1583 | if (dynobj == NULL) | |
1584 | { | |
b34976b6 AM |
1585 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
1586 | return FALSE; | |
252b5132 | 1587 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1588 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1589 | sgot = bfd_get_linker_section (dynobj, ".got"); | |
1590 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
252b5132 RH |
1591 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
1592 | ||
1593 | /* Make sure we have an initial entry in the .got table. */ | |
eea6121a AM |
1594 | if (sgot->size == 0) |
1595 | sgot->size = BYTES_IN_WORD; | |
b34976b6 | 1596 | sunos_hash_table (info)->got_needed = TRUE; |
252b5132 RH |
1597 | } |
1598 | ||
1599 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1600 | || info->shared | |
1601 | || (h->flags & SUNOS_REF_REGULAR) != 0); | |
1602 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1603 | || info->shared | |
1604 | || h->plt_offset != 0 | |
1605 | || ((h->root.root.type == bfd_link_hash_defined | |
1606 | || h->root.root.type == bfd_link_hash_defweak) | |
1607 | ? (h->root.root.u.def.section->owner->flags | |
1608 | & DYNAMIC) != 0 | |
1609 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
1610 | ||
1611 | /* This reloc is against a symbol defined only by a dynamic | |
1612 | object, or it is a jump table reloc from PIC compiled code. */ | |
1613 | ||
1614 | if (r_type != RELOC_JMP_TBL | |
1615 | && h->root.root.type == bfd_link_hash_undefined) | |
116c20d2 NC |
1616 | /* Presumably this symbol was marked as being undefined by |
1617 | an earlier reloc. */ | |
1618 | srel->size += RELOC_EXT_SIZE; | |
1619 | ||
252b5132 RH |
1620 | else if (r_type != RELOC_JMP_TBL |
1621 | && (h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
1622 | { | |
1623 | bfd *sub; | |
1624 | ||
1625 | /* This reloc is not in the .text section. It must be | |
1626 | copied into the dynamic relocs. We mark the symbol as | |
1627 | being undefined. */ | |
eea6121a | 1628 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1629 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) |
1630 | { | |
1631 | sub = h->root.root.u.def.section->owner; | |
1632 | h->root.root.type = bfd_link_hash_undefined; | |
1633 | h->root.root.u.undef.abfd = sub; | |
1634 | } | |
1635 | } | |
1636 | else | |
1637 | { | |
1638 | /* This symbol is in the .text section. We must give it an | |
1639 | entry in the procedure linkage table, if we have not | |
1640 | already done so. We change the definition of the symbol | |
1641 | to the .plt section; this will cause relocs against it to | |
1642 | be handled correctly. */ | |
1643 | if (h->plt_offset == 0) | |
1644 | { | |
eea6121a AM |
1645 | if (splt->size == 0) |
1646 | splt->size = SPARC_PLT_ENTRY_SIZE; | |
1647 | h->plt_offset = splt->size; | |
252b5132 RH |
1648 | |
1649 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1650 | { | |
1651 | if (h->root.root.type == bfd_link_hash_undefined) | |
1652 | h->root.root.type = bfd_link_hash_defined; | |
1653 | h->root.root.u.def.section = splt; | |
eea6121a | 1654 | h->root.root.u.def.value = splt->size; |
252b5132 RH |
1655 | } |
1656 | ||
eea6121a | 1657 | splt->size += SPARC_PLT_ENTRY_SIZE; |
252b5132 RH |
1658 | |
1659 | /* We will also need a dynamic reloc entry, unless this | |
b34976b6 AM |
1660 | is a JMP_TBL reloc produced by linking PIC compiled |
1661 | code, and we are not making a shared library. */ | |
252b5132 | 1662 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) |
eea6121a | 1663 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1664 | } |
1665 | ||
1666 | /* If we are creating a shared library, we need to copy over | |
b34976b6 | 1667 | any reloc other than a jump table reloc. */ |
252b5132 | 1668 | if (info->shared && r_type != RELOC_JMP_TBL) |
eea6121a | 1669 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1670 | } |
1671 | } | |
1672 | ||
b34976b6 | 1673 | return TRUE; |
252b5132 RH |
1674 | } |
1675 | ||
116c20d2 NC |
1676 | /* Scan the relocs for an input section. */ |
1677 | ||
1678 | static bfd_boolean | |
1679 | sunos_scan_relocs (struct bfd_link_info *info, | |
1680 | bfd *abfd, | |
1681 | asection *sec, | |
1682 | bfd_size_type rel_size) | |
1683 | { | |
1684 | void * relocs; | |
1685 | void * free_relocs = NULL; | |
1686 | ||
1687 | if (rel_size == 0) | |
1688 | return TRUE; | |
1689 | ||
1690 | if (! info->keep_memory) | |
1691 | relocs = free_relocs = bfd_malloc (rel_size); | |
1692 | else | |
1693 | { | |
1694 | struct aout_section_data_struct *n; | |
1695 | bfd_size_type amt = sizeof (struct aout_section_data_struct); | |
1696 | ||
1697 | n = bfd_alloc (abfd, amt); | |
1698 | if (n == NULL) | |
1699 | relocs = NULL; | |
1700 | else | |
1701 | { | |
1702 | set_aout_section_data (sec, n); | |
1703 | relocs = bfd_malloc (rel_size); | |
1704 | aout_section_data (sec)->relocs = relocs; | |
1705 | } | |
1706 | } | |
1707 | if (relocs == NULL) | |
1708 | return FALSE; | |
1709 | ||
1710 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
1711 | || bfd_bread (relocs, rel_size, abfd) != rel_size) | |
1712 | goto error_return; | |
1713 | ||
1714 | if (obj_reloc_entry_size (abfd) == RELOC_STD_SIZE) | |
1715 | { | |
1716 | if (! sunos_scan_std_relocs (info, abfd, sec, | |
1717 | (struct reloc_std_external *) relocs, | |
1718 | rel_size)) | |
1719 | goto error_return; | |
1720 | } | |
1721 | else | |
1722 | { | |
1723 | if (! sunos_scan_ext_relocs (info, abfd, sec, | |
1724 | (struct reloc_ext_external *) relocs, | |
1725 | rel_size)) | |
1726 | goto error_return; | |
1727 | } | |
1728 | ||
1729 | if (free_relocs != NULL) | |
1730 | free (free_relocs); | |
1731 | ||
1732 | return TRUE; | |
1733 | ||
1734 | error_return: | |
1735 | if (free_relocs != NULL) | |
1736 | free (free_relocs); | |
1737 | return FALSE; | |
1738 | } | |
1739 | ||
252b5132 RH |
1740 | /* Build the hash table of dynamic symbols, and to mark as written all |
1741 | symbols from dynamic objects which we do not plan to write out. */ | |
1742 | ||
b34976b6 | 1743 | static bfd_boolean |
116c20d2 | 1744 | sunos_scan_dynamic_symbol (struct sunos_link_hash_entry *h, void * data) |
252b5132 RH |
1745 | { |
1746 | struct bfd_link_info *info = (struct bfd_link_info *) data; | |
1747 | ||
1748 | /* Set the written flag for symbols we do not want to write out as | |
1749 | part of the regular symbol table. This is all symbols which are | |
1750 | not defined in a regular object file. For some reason symbols | |
1751 | which are referenced by a regular object and defined by a dynamic | |
1752 | object do not seem to show up in the regular symbol table. It is | |
1753 | possible for a symbol to have only SUNOS_REF_REGULAR set here, it | |
1754 | is an undefined symbol which was turned into a common symbol | |
1755 | because it was found in an archive object which was not included | |
1756 | in the link. */ | |
1757 | if ((h->flags & SUNOS_DEF_REGULAR) == 0 | |
1758 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1759 | && strcmp (h->root.root.root.string, "__DYNAMIC") != 0) | |
b34976b6 | 1760 | h->root.written = TRUE; |
252b5132 RH |
1761 | |
1762 | /* If this symbol is defined by a dynamic object and referenced by a | |
1763 | regular object, see whether we gave it a reasonable value while | |
1764 | scanning the relocs. */ | |
252b5132 RH |
1765 | if ((h->flags & SUNOS_DEF_REGULAR) == 0 |
1766 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1767 | && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1768 | { | |
1769 | if ((h->root.root.type == bfd_link_hash_defined | |
1770 | || h->root.root.type == bfd_link_hash_defweak) | |
1771 | && ((h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
1772 | && h->root.root.u.def.section->output_section == NULL) | |
1773 | { | |
1774 | bfd *sub; | |
1775 | ||
1776 | /* This symbol is currently defined in a dynamic section | |
1777 | which is not being put into the output file. This | |
1778 | implies that there is no reloc against the symbol. I'm | |
1779 | not sure why this case would ever occur. In any case, we | |
1780 | change the symbol to be undefined. */ | |
1781 | sub = h->root.root.u.def.section->owner; | |
1782 | h->root.root.type = bfd_link_hash_undefined; | |
1783 | h->root.root.u.undef.abfd = sub; | |
1784 | } | |
1785 | } | |
1786 | ||
1787 | /* If this symbol is defined or referenced by a regular file, add it | |
1788 | to the dynamic symbols. */ | |
1789 | if ((h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1790 | { | |
1791 | asection *s; | |
1792 | size_t len; | |
1793 | bfd_byte *contents; | |
1794 | unsigned char *name; | |
1795 | unsigned long hash; | |
1796 | bfd *dynobj; | |
1797 | ||
1798 | BFD_ASSERT (h->dynindx == -2); | |
1799 | ||
1800 | dynobj = sunos_hash_table (info)->dynobj; | |
1801 | ||
1802 | h->dynindx = sunos_hash_table (info)->dynsymcount; | |
1803 | ++sunos_hash_table (info)->dynsymcount; | |
1804 | ||
1805 | len = strlen (h->root.root.root.string); | |
1806 | ||
1807 | /* We don't bother to construct a BFD hash table for the strings | |
1808 | which are the names of the dynamic symbols. Using a hash | |
1809 | table for the regular symbols is beneficial, because the | |
1810 | regular symbols includes the debugging symbols, which have | |
1811 | long names and are often duplicated in several object files. | |
1812 | There are no debugging symbols in the dynamic symbols. */ | |
87e0a731 | 1813 | s = bfd_get_linker_section (dynobj, ".dynstr"); |
252b5132 | 1814 | BFD_ASSERT (s != NULL); |
116c20d2 | 1815 | contents = bfd_realloc (s->contents, s->size + len + 1); |
252b5132 | 1816 | if (contents == NULL) |
b34976b6 | 1817 | return FALSE; |
252b5132 RH |
1818 | s->contents = contents; |
1819 | ||
eea6121a AM |
1820 | h->dynstr_index = s->size; |
1821 | strcpy ((char *) contents + s->size, h->root.root.root.string); | |
1822 | s->size += len + 1; | |
252b5132 RH |
1823 | |
1824 | /* Add it to the dynamic hash table. */ | |
1825 | name = (unsigned char *) h->root.root.root.string; | |
1826 | hash = 0; | |
1827 | while (*name != '\0') | |
1828 | hash = (hash << 1) + *name++; | |
1829 | hash &= 0x7fffffff; | |
1830 | hash %= sunos_hash_table (info)->bucketcount; | |
1831 | ||
87e0a731 | 1832 | s = bfd_get_linker_section (dynobj, ".hash"); |
252b5132 RH |
1833 | BFD_ASSERT (s != NULL); |
1834 | ||
1835 | if (GET_SWORD (dynobj, s->contents + hash * HASH_ENTRY_SIZE) == -1) | |
1836 | PUT_WORD (dynobj, h->dynindx, s->contents + hash * HASH_ENTRY_SIZE); | |
1837 | else | |
1838 | { | |
1839 | bfd_vma next; | |
1840 | ||
1841 | next = GET_WORD (dynobj, | |
1842 | (s->contents | |
1843 | + hash * HASH_ENTRY_SIZE | |
1844 | + BYTES_IN_WORD)); | |
eea6121a | 1845 | PUT_WORD (dynobj, s->size / HASH_ENTRY_SIZE, |
252b5132 | 1846 | s->contents + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD); |
eea6121a AM |
1847 | PUT_WORD (dynobj, h->dynindx, s->contents + s->size); |
1848 | PUT_WORD (dynobj, next, s->contents + s->size + BYTES_IN_WORD); | |
1849 | s->size += HASH_ENTRY_SIZE; | |
252b5132 RH |
1850 | } |
1851 | } | |
1852 | ||
b34976b6 | 1853 | return TRUE; |
252b5132 RH |
1854 | } |
1855 | ||
116c20d2 NC |
1856 | /* Set up the sizes and contents of the dynamic sections created in |
1857 | sunos_add_dynamic_symbols. This is called by the SunOS linker | |
1858 | emulation before_allocation routine. We must set the sizes of the | |
1859 | sections before the linker sets the addresses of the various | |
1860 | sections. This unfortunately requires reading all the relocs so | |
1861 | that we can work out which ones need to become dynamic relocs. If | |
1862 | info->keep_memory is TRUE, we keep the relocs in memory; otherwise, | |
1863 | we discard them, and will read them again later. */ | |
1864 | ||
1865 | bfd_boolean | |
1866 | bfd_sunos_size_dynamic_sections (bfd *output_bfd, | |
1867 | struct bfd_link_info *info, | |
1868 | asection **sdynptr, | |
1869 | asection **sneedptr, | |
1870 | asection **srulesptr) | |
1871 | { | |
1872 | bfd *dynobj; | |
1873 | bfd_size_type dynsymcount; | |
1874 | struct sunos_link_hash_entry *h; | |
1875 | asection *s; | |
1876 | size_t bucketcount; | |
1877 | bfd_size_type hashalloc; | |
1878 | size_t i; | |
1879 | bfd *sub; | |
1880 | ||
1881 | *sdynptr = NULL; | |
1882 | *sneedptr = NULL; | |
1883 | *srulesptr = NULL; | |
1884 | ||
1885 | if (info->relocatable) | |
1886 | return TRUE; | |
1887 | ||
1888 | if (output_bfd->xvec != &MY(vec)) | |
1889 | return TRUE; | |
1890 | ||
1891 | /* Look through all the input BFD's and read their relocs. It would | |
1892 | be better if we didn't have to do this, but there is no other way | |
1893 | to determine the number of dynamic relocs we need, and, more | |
1894 | importantly, there is no other way to know which symbols should | |
1895 | get an entry in the procedure linkage table. */ | |
1896 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
1897 | { | |
1898 | if ((sub->flags & DYNAMIC) == 0 | |
1899 | && sub->xvec == output_bfd->xvec) | |
1900 | { | |
1901 | if (! sunos_scan_relocs (info, sub, obj_textsec (sub), | |
1902 | exec_hdr (sub)->a_trsize) | |
1903 | || ! sunos_scan_relocs (info, sub, obj_datasec (sub), | |
1904 | exec_hdr (sub)->a_drsize)) | |
1905 | return FALSE; | |
1906 | } | |
1907 | } | |
1908 | ||
1909 | dynobj = sunos_hash_table (info)->dynobj; | |
1910 | dynsymcount = sunos_hash_table (info)->dynsymcount; | |
1911 | ||
1912 | /* If there were no dynamic objects in the link, and we don't need | |
1913 | to build a global offset table, there is nothing to do here. */ | |
1914 | if (! sunos_hash_table (info)->dynamic_sections_needed | |
1915 | && ! sunos_hash_table (info)->got_needed) | |
1916 | return TRUE; | |
1917 | ||
1918 | /* If __GLOBAL_OFFSET_TABLE_ was mentioned, define it. */ | |
1919 | h = sunos_link_hash_lookup (sunos_hash_table (info), | |
1920 | "__GLOBAL_OFFSET_TABLE_", FALSE, FALSE, FALSE); | |
1921 | if (h != NULL && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1922 | { | |
1923 | h->flags |= SUNOS_DEF_REGULAR; | |
1924 | if (h->dynindx == -1) | |
1925 | { | |
1926 | ++sunos_hash_table (info)->dynsymcount; | |
1927 | h->dynindx = -2; | |
1928 | } | |
87e0a731 AM |
1929 | s = bfd_get_linker_section (dynobj, ".got"); |
1930 | BFD_ASSERT (s != NULL); | |
116c20d2 | 1931 | h->root.root.type = bfd_link_hash_defined; |
87e0a731 | 1932 | h->root.root.u.def.section = s; |
116c20d2 NC |
1933 | |
1934 | /* If the .got section is more than 0x1000 bytes, we set | |
1935 | __GLOBAL_OFFSET_TABLE_ to be 0x1000 bytes into the section, | |
1936 | so that 13 bit relocations have a greater chance of working. */ | |
116c20d2 NC |
1937 | if (s->size >= 0x1000) |
1938 | h->root.root.u.def.value = 0x1000; | |
1939 | else | |
1940 | h->root.root.u.def.value = 0; | |
1941 | ||
1942 | sunos_hash_table (info)->got_base = h->root.root.u.def.value; | |
1943 | } | |
1944 | ||
1945 | /* If there are any shared objects in the link, then we need to set | |
1946 | up the dynamic linking information. */ | |
1947 | if (sunos_hash_table (info)->dynamic_sections_needed) | |
1948 | { | |
87e0a731 | 1949 | *sdynptr = bfd_get_linker_section (dynobj, ".dynamic"); |
116c20d2 NC |
1950 | |
1951 | /* The .dynamic section is always the same size. */ | |
1952 | s = *sdynptr; | |
1953 | BFD_ASSERT (s != NULL); | |
1954 | s->size = (sizeof (struct external_sun4_dynamic) | |
1955 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE | |
1956 | + sizeof (struct external_sun4_dynamic_link)); | |
1957 | ||
1958 | /* Set the size of the .dynsym and .hash sections. We counted | |
1959 | the number of dynamic symbols as we read the input files. We | |
1960 | will build the dynamic symbol table (.dynsym) and the hash | |
1961 | table (.hash) when we build the final symbol table, because | |
1962 | until then we do not know the correct value to give the | |
1963 | symbols. We build the dynamic symbol string table (.dynstr) | |
1964 | in a traversal of the symbol table using | |
1965 | sunos_scan_dynamic_symbol. */ | |
87e0a731 | 1966 | s = bfd_get_linker_section (dynobj, ".dynsym"); |
116c20d2 NC |
1967 | BFD_ASSERT (s != NULL); |
1968 | s->size = dynsymcount * sizeof (struct external_nlist); | |
1969 | s->contents = bfd_alloc (output_bfd, s->size); | |
1970 | if (s->contents == NULL && s->size != 0) | |
1971 | return FALSE; | |
1972 | ||
1973 | /* The number of buckets is just the number of symbols divided | |
1974 | by four. To compute the final size of the hash table, we | |
1975 | must actually compute the hash table. Normally we need | |
1976 | exactly as many entries in the hash table as there are | |
1977 | dynamic symbols, but if some of the buckets are not used we | |
1978 | will need additional entries. In the worst case, every | |
1979 | symbol will hash to the same bucket, and we will need | |
1980 | BUCKETCOUNT - 1 extra entries. */ | |
1981 | if (dynsymcount >= 4) | |
1982 | bucketcount = dynsymcount / 4; | |
1983 | else if (dynsymcount > 0) | |
1984 | bucketcount = dynsymcount; | |
1985 | else | |
1986 | bucketcount = 1; | |
87e0a731 | 1987 | s = bfd_get_linker_section (dynobj, ".hash"); |
116c20d2 NC |
1988 | BFD_ASSERT (s != NULL); |
1989 | hashalloc = (dynsymcount + bucketcount - 1) * HASH_ENTRY_SIZE; | |
1990 | s->contents = bfd_zalloc (dynobj, hashalloc); | |
1991 | if (s->contents == NULL && dynsymcount > 0) | |
1992 | return FALSE; | |
1993 | for (i = 0; i < bucketcount; i++) | |
1994 | PUT_WORD (output_bfd, (bfd_vma) -1, s->contents + i * HASH_ENTRY_SIZE); | |
1995 | s->size = bucketcount * HASH_ENTRY_SIZE; | |
1996 | ||
1997 | sunos_hash_table (info)->bucketcount = bucketcount; | |
1998 | ||
1999 | /* Scan all the symbols, place them in the dynamic symbol table, | |
2000 | and build the dynamic hash table. We reuse dynsymcount as a | |
2001 | counter for the number of symbols we have added so far. */ | |
2002 | sunos_hash_table (info)->dynsymcount = 0; | |
2003 | sunos_link_hash_traverse (sunos_hash_table (info), | |
2004 | sunos_scan_dynamic_symbol, | |
2005 | (void *) info); | |
2006 | BFD_ASSERT (sunos_hash_table (info)->dynsymcount == dynsymcount); | |
2007 | ||
2008 | /* The SunOS native linker seems to align the total size of the | |
2009 | symbol strings to a multiple of 8. I don't know if this is | |
2010 | important, but it can't hurt much. */ | |
87e0a731 | 2011 | s = bfd_get_linker_section (dynobj, ".dynstr"); |
116c20d2 NC |
2012 | BFD_ASSERT (s != NULL); |
2013 | if ((s->size & 7) != 0) | |
2014 | { | |
2015 | bfd_size_type add; | |
2016 | bfd_byte *contents; | |
2017 | ||
2018 | add = 8 - (s->size & 7); | |
2019 | contents = bfd_realloc (s->contents, s->size + add); | |
2020 | if (contents == NULL) | |
2021 | return FALSE; | |
2022 | memset (contents + s->size, 0, (size_t) add); | |
2023 | s->contents = contents; | |
2024 | s->size += add; | |
2025 | } | |
2026 | } | |
2027 | ||
2028 | /* Now that we have worked out the sizes of the procedure linkage | |
2029 | table and the dynamic relocs, allocate storage for them. */ | |
87e0a731 | 2030 | s = bfd_get_linker_section (dynobj, ".plt"); |
116c20d2 NC |
2031 | BFD_ASSERT (s != NULL); |
2032 | if (s->size != 0) | |
2033 | { | |
2034 | s->contents = bfd_alloc (dynobj, s->size); | |
2035 | if (s->contents == NULL) | |
2036 | return FALSE; | |
2037 | ||
2038 | /* Fill in the first entry in the table. */ | |
2039 | switch (bfd_get_arch (dynobj)) | |
2040 | { | |
2041 | case bfd_arch_sparc: | |
2042 | memcpy (s->contents, sparc_plt_first_entry, SPARC_PLT_ENTRY_SIZE); | |
2043 | break; | |
2044 | ||
2045 | case bfd_arch_m68k: | |
2046 | memcpy (s->contents, m68k_plt_first_entry, M68K_PLT_ENTRY_SIZE); | |
2047 | break; | |
2048 | ||
2049 | default: | |
2050 | abort (); | |
2051 | } | |
2052 | } | |
2053 | ||
87e0a731 | 2054 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
116c20d2 NC |
2055 | if (s->size != 0) |
2056 | { | |
2057 | s->contents = bfd_alloc (dynobj, s->size); | |
2058 | if (s->contents == NULL) | |
2059 | return FALSE; | |
2060 | } | |
2061 | /* We use the reloc_count field to keep track of how many of the | |
2062 | relocs we have output so far. */ | |
2063 | s->reloc_count = 0; | |
2064 | ||
2065 | /* Make space for the global offset table. */ | |
87e0a731 | 2066 | s = bfd_get_linker_section (dynobj, ".got"); |
116c20d2 NC |
2067 | s->contents = bfd_alloc (dynobj, s->size); |
2068 | if (s->contents == NULL) | |
2069 | return FALSE; | |
2070 | ||
2071 | *sneedptr = bfd_get_section_by_name (dynobj, ".need"); | |
2072 | *srulesptr = bfd_get_section_by_name (dynobj, ".rules"); | |
2073 | ||
2074 | return TRUE; | |
2075 | } | |
2076 | ||
252b5132 RH |
2077 | /* Link a dynamic object. We actually don't have anything to do at |
2078 | this point. This entry point exists to prevent the regular linker | |
2079 | code from doing anything with the object. */ | |
2080 | ||
b34976b6 | 2081 | static bfd_boolean |
116c20d2 NC |
2082 | sunos_link_dynamic_object (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2083 | bfd *abfd ATTRIBUTE_UNUSED) | |
252b5132 | 2084 | { |
b34976b6 | 2085 | return TRUE; |
252b5132 RH |
2086 | } |
2087 | ||
2088 | /* Write out a dynamic symbol. This is called by the final traversal | |
2089 | over the symbol table. */ | |
2090 | ||
b34976b6 | 2091 | static bfd_boolean |
116c20d2 NC |
2092 | sunos_write_dynamic_symbol (bfd *output_bfd, |
2093 | struct bfd_link_info *info, | |
2094 | struct aout_link_hash_entry *harg) | |
252b5132 RH |
2095 | { |
2096 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
2097 | int type; | |
2098 | bfd_vma val; | |
2099 | asection *s; | |
2100 | struct external_nlist *outsym; | |
2101 | ||
2102 | /* If this symbol is in the procedure linkage table, fill in the | |
2103 | table entry. */ | |
2104 | if (h->plt_offset != 0) | |
2105 | { | |
2106 | bfd *dynobj; | |
2107 | asection *splt; | |
2108 | bfd_byte *p; | |
252b5132 RH |
2109 | bfd_vma r_address; |
2110 | ||
2111 | dynobj = sunos_hash_table (info)->dynobj; | |
87e0a731 | 2112 | splt = bfd_get_linker_section (dynobj, ".plt"); |
252b5132 RH |
2113 | p = splt->contents + h->plt_offset; |
2114 | ||
87e0a731 | 2115 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 RH |
2116 | |
2117 | r_address = (splt->output_section->vma | |
2118 | + splt->output_offset | |
2119 | + h->plt_offset); | |
2120 | ||
2121 | switch (bfd_get_arch (output_bfd)) | |
2122 | { | |
2123 | case bfd_arch_sparc: | |
2124 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) | |
2125 | { | |
2126 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD0, p); | |
2127 | bfd_put_32 (output_bfd, | |
2128 | (SPARC_PLT_ENTRY_WORD1 | |
2129 | + (((- (h->plt_offset + 4) >> 2) | |
2130 | & 0x3fffffff))), | |
2131 | p + 4); | |
2132 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD2 + s->reloc_count, | |
2133 | p + 8); | |
2134 | } | |
2135 | else | |
2136 | { | |
252b5132 RH |
2137 | val = (h->root.root.u.def.section->output_section->vma |
2138 | + h->root.root.u.def.section->output_offset | |
2139 | + h->root.root.u.def.value); | |
2140 | bfd_put_32 (output_bfd, | |
2141 | SPARC_PLT_PIC_WORD0 + ((val >> 10) & 0x3fffff), | |
2142 | p); | |
2143 | bfd_put_32 (output_bfd, | |
2144 | SPARC_PLT_PIC_WORD1 + (val & 0x3ff), | |
2145 | p + 4); | |
2146 | bfd_put_32 (output_bfd, SPARC_PLT_PIC_WORD2, p + 8); | |
2147 | } | |
2148 | break; | |
2149 | ||
2150 | case bfd_arch_m68k: | |
2151 | if (! info->shared && (h->flags & SUNOS_DEF_REGULAR) != 0) | |
2152 | abort (); | |
2153 | bfd_put_16 (output_bfd, M68K_PLT_ENTRY_WORD0, p); | |
2154 | bfd_put_32 (output_bfd, (- (h->plt_offset + 2)), p + 2); | |
dc810e39 | 2155 | bfd_put_16 (output_bfd, (bfd_vma) s->reloc_count, p + 6); |
252b5132 RH |
2156 | r_address += 2; |
2157 | break; | |
2158 | ||
2159 | default: | |
2160 | abort (); | |
2161 | } | |
2162 | ||
2163 | /* We also need to add a jump table reloc, unless this is the | |
b34976b6 | 2164 | result of a JMP_TBL reloc from PIC compiled code. */ |
252b5132 RH |
2165 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) |
2166 | { | |
2167 | BFD_ASSERT (h->dynindx >= 0); | |
2168 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2169 | < s->size); |
252b5132 RH |
2170 | p = s->contents + s->reloc_count * obj_reloc_entry_size (output_bfd); |
2171 | if (obj_reloc_entry_size (output_bfd) == RELOC_STD_SIZE) | |
2172 | { | |
2173 | struct reloc_std_external *srel; | |
2174 | ||
2175 | srel = (struct reloc_std_external *) p; | |
2176 | PUT_WORD (output_bfd, r_address, srel->r_address); | |
2177 | if (bfd_header_big_endian (output_bfd)) | |
2178 | { | |
7b82c249 KH |
2179 | srel->r_index[0] = (bfd_byte) (h->dynindx >> 16); |
2180 | srel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
2181 | srel->r_index[2] = (bfd_byte) (h->dynindx); | |
252b5132 RH |
2182 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_BIG |
2183 | | RELOC_STD_BITS_JMPTABLE_BIG); | |
2184 | } | |
2185 | else | |
2186 | { | |
7b82c249 KH |
2187 | srel->r_index[2] = (bfd_byte) (h->dynindx >> 16); |
2188 | srel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2189 | srel->r_index[0] = (bfd_byte)h->dynindx; |
2190 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_LITTLE | |
2191 | | RELOC_STD_BITS_JMPTABLE_LITTLE); | |
2192 | } | |
2193 | } | |
2194 | else | |
2195 | { | |
2196 | struct reloc_ext_external *erel; | |
2197 | ||
2198 | erel = (struct reloc_ext_external *) p; | |
2199 | PUT_WORD (output_bfd, r_address, erel->r_address); | |
2200 | if (bfd_header_big_endian (output_bfd)) | |
2201 | { | |
7b82c249 KH |
2202 | erel->r_index[0] = (bfd_byte) (h->dynindx >> 16); |
2203 | erel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2204 | erel->r_index[2] = (bfd_byte)h->dynindx; |
2205 | erel->r_type[0] = | |
2206 | (RELOC_EXT_BITS_EXTERN_BIG | |
2207 | | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2208 | } | |
2209 | else | |
2210 | { | |
7b82c249 KH |
2211 | erel->r_index[2] = (bfd_byte) (h->dynindx >> 16); |
2212 | erel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2213 | erel->r_index[0] = (bfd_byte)h->dynindx; |
2214 | erel->r_type[0] = | |
2215 | (RELOC_EXT_BITS_EXTERN_LITTLE | |
2216 | | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2217 | } | |
2218 | PUT_WORD (output_bfd, (bfd_vma) 0, erel->r_addend); | |
2219 | } | |
2220 | ||
2221 | ++s->reloc_count; | |
2222 | } | |
2223 | } | |
2224 | ||
2225 | /* If this is not a dynamic symbol, we don't have to do anything | |
2226 | else. We only check this after handling the PLT entry, because | |
2227 | we can have a PLT entry for a nondynamic symbol when linking PIC | |
2228 | compiled code from a regular object. */ | |
2229 | if (h->dynindx < 0) | |
b34976b6 | 2230 | return TRUE; |
252b5132 RH |
2231 | |
2232 | switch (h->root.root.type) | |
2233 | { | |
2234 | default: | |
2235 | case bfd_link_hash_new: | |
2236 | abort (); | |
2237 | /* Avoid variable not initialized warnings. */ | |
b34976b6 | 2238 | return TRUE; |
252b5132 RH |
2239 | case bfd_link_hash_undefined: |
2240 | type = N_UNDF | N_EXT; | |
2241 | val = 0; | |
2242 | break; | |
2243 | case bfd_link_hash_defined: | |
2244 | case bfd_link_hash_defweak: | |
2245 | { | |
2246 | asection *sec; | |
2247 | asection *output_section; | |
2248 | ||
2249 | sec = h->root.root.u.def.section; | |
2250 | output_section = sec->output_section; | |
2251 | BFD_ASSERT (bfd_is_abs_section (output_section) | |
2252 | || output_section->owner == output_bfd); | |
2253 | if (h->plt_offset != 0 | |
2254 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
2255 | { | |
2256 | type = N_UNDF | N_EXT; | |
2257 | val = 0; | |
2258 | } | |
2259 | else | |
2260 | { | |
2261 | if (output_section == obj_textsec (output_bfd)) | |
2262 | type = (h->root.root.type == bfd_link_hash_defined | |
2263 | ? N_TEXT | |
2264 | : N_WEAKT); | |
2265 | else if (output_section == obj_datasec (output_bfd)) | |
2266 | type = (h->root.root.type == bfd_link_hash_defined | |
2267 | ? N_DATA | |
2268 | : N_WEAKD); | |
2269 | else if (output_section == obj_bsssec (output_bfd)) | |
2270 | type = (h->root.root.type == bfd_link_hash_defined | |
2271 | ? N_BSS | |
2272 | : N_WEAKB); | |
2273 | else | |
2274 | type = (h->root.root.type == bfd_link_hash_defined | |
2275 | ? N_ABS | |
2276 | : N_WEAKA); | |
2277 | type |= N_EXT; | |
2278 | val = (h->root.root.u.def.value | |
2279 | + output_section->vma | |
2280 | + sec->output_offset); | |
2281 | } | |
2282 | } | |
2283 | break; | |
2284 | case bfd_link_hash_common: | |
2285 | type = N_UNDF | N_EXT; | |
2286 | val = h->root.root.u.c.size; | |
2287 | break; | |
2288 | case bfd_link_hash_undefweak: | |
2289 | type = N_WEAKU; | |
2290 | val = 0; | |
2291 | break; | |
2292 | case bfd_link_hash_indirect: | |
2293 | case bfd_link_hash_warning: | |
2294 | /* FIXME: Ignore these for now. The circumstances under which | |
2295 | they should be written out are not clear to me. */ | |
b34976b6 | 2296 | return TRUE; |
252b5132 RH |
2297 | } |
2298 | ||
87e0a731 | 2299 | s = bfd_get_linker_section (sunos_hash_table (info)->dynobj, ".dynsym"); |
252b5132 RH |
2300 | BFD_ASSERT (s != NULL); |
2301 | outsym = ((struct external_nlist *) | |
2302 | (s->contents + h->dynindx * EXTERNAL_NLIST_SIZE)); | |
2303 | ||
dc810e39 AM |
2304 | H_PUT_8 (output_bfd, type, outsym->e_type); |
2305 | H_PUT_8 (output_bfd, 0, outsym->e_other); | |
252b5132 RH |
2306 | |
2307 | /* FIXME: The native linker doesn't use 0 for desc. It seems to use | |
2308 | one less than the desc value in the shared library, although that | |
2309 | seems unlikely. */ | |
dc810e39 | 2310 | H_PUT_16 (output_bfd, 0, outsym->e_desc); |
252b5132 RH |
2311 | |
2312 | PUT_WORD (output_bfd, h->dynstr_index, outsym->e_strx); | |
2313 | PUT_WORD (output_bfd, val, outsym->e_value); | |
2314 | ||
b34976b6 | 2315 | return TRUE; |
252b5132 RH |
2316 | } |
2317 | ||
2318 | /* This is called for each reloc against an external symbol. If this | |
2319 | is a reloc which are are going to copy as a dynamic reloc, then | |
2320 | copy it over, and tell the caller to not bother processing this | |
2321 | reloc. */ | |
2322 | ||
b34976b6 | 2323 | static bfd_boolean |
116c20d2 NC |
2324 | sunos_check_dynamic_reloc (struct bfd_link_info *info, |
2325 | bfd *input_bfd, | |
2326 | asection *input_section, | |
2327 | struct aout_link_hash_entry *harg, | |
2328 | void * reloc, | |
2329 | bfd_byte *contents ATTRIBUTE_UNUSED, | |
2330 | bfd_boolean *skip, | |
2331 | bfd_vma *relocationp) | |
252b5132 RH |
2332 | { |
2333 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
2334 | bfd *dynobj; | |
b34976b6 AM |
2335 | bfd_boolean baserel; |
2336 | bfd_boolean jmptbl; | |
2337 | bfd_boolean pcrel; | |
252b5132 RH |
2338 | asection *s; |
2339 | bfd_byte *p; | |
2340 | long indx; | |
2341 | ||
b34976b6 | 2342 | *skip = FALSE; |
252b5132 RH |
2343 | |
2344 | dynobj = sunos_hash_table (info)->dynobj; | |
2345 | ||
2346 | if (h != NULL | |
2347 | && h->plt_offset != 0 | |
2348 | && (info->shared | |
2349 | || (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
2350 | { | |
2351 | asection *splt; | |
2352 | ||
2353 | /* Redirect the relocation to the PLT entry. */ | |
87e0a731 | 2354 | splt = bfd_get_linker_section (dynobj, ".plt"); |
252b5132 RH |
2355 | *relocationp = (splt->output_section->vma |
2356 | + splt->output_offset | |
2357 | + h->plt_offset); | |
2358 | } | |
2359 | ||
2360 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2361 | { | |
2362 | struct reloc_std_external *srel; | |
2363 | ||
2364 | srel = (struct reloc_std_external *) reloc; | |
2365 | if (bfd_header_big_endian (input_bfd)) | |
2366 | { | |
2367 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG)); | |
2368 | jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG)); | |
2369 | pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); | |
2370 | } | |
2371 | else | |
2372 | { | |
2373 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE)); | |
2374 | jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); | |
2375 | pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); | |
2376 | } | |
2377 | } | |
2378 | else | |
2379 | { | |
2380 | struct reloc_ext_external *erel; | |
2381 | int r_type; | |
2382 | ||
2383 | erel = (struct reloc_ext_external *) reloc; | |
2384 | if (bfd_header_big_endian (input_bfd)) | |
2385 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
2386 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
2387 | else | |
2388 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
2389 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
2390 | baserel = (r_type == RELOC_BASE10 | |
2391 | || r_type == RELOC_BASE13 | |
2392 | || r_type == RELOC_BASE22); | |
2393 | jmptbl = r_type == RELOC_JMP_TBL; | |
2394 | pcrel = (r_type == RELOC_DISP8 | |
2395 | || r_type == RELOC_DISP16 | |
2396 | || r_type == RELOC_DISP32 | |
2397 | || r_type == RELOC_WDISP30 | |
2398 | || r_type == RELOC_WDISP22); | |
2399 | /* We don't consider the PC10 and PC22 types to be PC relative, | |
b34976b6 | 2400 | because they are pcrel_offset. */ |
252b5132 RH |
2401 | } |
2402 | ||
2403 | if (baserel) | |
2404 | { | |
2405 | bfd_vma *got_offsetp; | |
2406 | asection *sgot; | |
2407 | ||
2408 | if (h != NULL) | |
2409 | got_offsetp = &h->got_offset; | |
2410 | else if (adata (input_bfd).local_got_offsets == NULL) | |
2411 | got_offsetp = NULL; | |
2412 | else | |
2413 | { | |
2414 | struct reloc_std_external *srel; | |
2415 | int r_index; | |
2416 | ||
2417 | srel = (struct reloc_std_external *) reloc; | |
2418 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2419 | { | |
2420 | if (bfd_header_big_endian (input_bfd)) | |
2421 | r_index = ((srel->r_index[0] << 16) | |
2422 | | (srel->r_index[1] << 8) | |
2423 | | srel->r_index[2]); | |
2424 | else | |
2425 | r_index = ((srel->r_index[2] << 16) | |
2426 | | (srel->r_index[1] << 8) | |
2427 | | srel->r_index[0]); | |
2428 | } | |
2429 | else | |
2430 | { | |
2431 | struct reloc_ext_external *erel; | |
2432 | ||
2433 | erel = (struct reloc_ext_external *) reloc; | |
2434 | if (bfd_header_big_endian (input_bfd)) | |
2435 | r_index = ((erel->r_index[0] << 16) | |
2436 | | (erel->r_index[1] << 8) | |
2437 | | erel->r_index[2]); | |
2438 | else | |
2439 | r_index = ((erel->r_index[2] << 16) | |
2440 | | (erel->r_index[1] << 8) | |
2441 | | erel->r_index[0]); | |
2442 | } | |
2443 | ||
2444 | got_offsetp = adata (input_bfd).local_got_offsets + r_index; | |
2445 | } | |
2446 | ||
2447 | BFD_ASSERT (got_offsetp != NULL && *got_offsetp != 0); | |
2448 | ||
87e0a731 | 2449 | sgot = bfd_get_linker_section (dynobj, ".got"); |
252b5132 RH |
2450 | |
2451 | /* We set the least significant bit to indicate whether we have | |
2452 | already initialized the GOT entry. */ | |
2453 | if ((*got_offsetp & 1) == 0) | |
2454 | { | |
2455 | if (h == NULL | |
2456 | || (! info->shared | |
2457 | && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
2458 | || (h->flags & SUNOS_DEF_REGULAR) != 0))) | |
2459 | PUT_WORD (dynobj, *relocationp, sgot->contents + *got_offsetp); | |
2460 | else | |
2461 | PUT_WORD (dynobj, 0, sgot->contents + *got_offsetp); | |
2462 | ||
2463 | if (info->shared | |
2464 | || (h != NULL | |
2465 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
2466 | && (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
2467 | { | |
2468 | /* We need to create a GLOB_DAT or 32 reloc to tell the | |
b34976b6 | 2469 | dynamic linker to fill in this entry in the table. */ |
252b5132 | 2470 | |
87e0a731 | 2471 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 RH |
2472 | BFD_ASSERT (s != NULL); |
2473 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2474 | < s->size); |
252b5132 RH |
2475 | |
2476 | p = (s->contents | |
2477 | + s->reloc_count * obj_reloc_entry_size (dynobj)); | |
2478 | ||
2479 | if (h != NULL) | |
2480 | indx = h->dynindx; | |
2481 | else | |
2482 | indx = 0; | |
2483 | ||
2484 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2485 | { | |
2486 | struct reloc_std_external *srel; | |
2487 | ||
2488 | srel = (struct reloc_std_external *) p; | |
2489 | PUT_WORD (dynobj, | |
2490 | (*got_offsetp | |
2491 | + sgot->output_section->vma | |
2492 | + sgot->output_offset), | |
2493 | srel->r_address); | |
2494 | if (bfd_header_big_endian (dynobj)) | |
2495 | { | |
7b82c249 KH |
2496 | srel->r_index[0] = (bfd_byte) (indx >> 16); |
2497 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2498 | srel->r_index[2] = (bfd_byte)indx; |
2499 | if (h == NULL) | |
2500 | srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_BIG; | |
2501 | else | |
2502 | srel->r_type[0] = | |
2503 | (RELOC_STD_BITS_EXTERN_BIG | |
2504 | | RELOC_STD_BITS_BASEREL_BIG | |
2505 | | RELOC_STD_BITS_RELATIVE_BIG | |
2506 | | (2 << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
2507 | } | |
2508 | else | |
2509 | { | |
7b82c249 KH |
2510 | srel->r_index[2] = (bfd_byte) (indx >> 16); |
2511 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2512 | srel->r_index[0] = (bfd_byte)indx; |
2513 | if (h == NULL) | |
2514 | srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_LITTLE; | |
2515 | else | |
2516 | srel->r_type[0] = | |
2517 | (RELOC_STD_BITS_EXTERN_LITTLE | |
2518 | | RELOC_STD_BITS_BASEREL_LITTLE | |
2519 | | RELOC_STD_BITS_RELATIVE_LITTLE | |
2520 | | (2 << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
2521 | } | |
2522 | } | |
2523 | else | |
2524 | { | |
2525 | struct reloc_ext_external *erel; | |
2526 | ||
2527 | erel = (struct reloc_ext_external *) p; | |
2528 | PUT_WORD (dynobj, | |
2529 | (*got_offsetp | |
2530 | + sgot->output_section->vma | |
2531 | + sgot->output_offset), | |
2532 | erel->r_address); | |
2533 | if (bfd_header_big_endian (dynobj)) | |
2534 | { | |
7b82c249 KH |
2535 | erel->r_index[0] = (bfd_byte) (indx >> 16); |
2536 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2537 | erel->r_index[2] = (bfd_byte)indx; |
2538 | if (h == NULL) | |
2539 | erel->r_type[0] = | |
2540 | RELOC_32 << RELOC_EXT_BITS_TYPE_SH_BIG; | |
2541 | else | |
2542 | erel->r_type[0] = | |
2543 | (RELOC_EXT_BITS_EXTERN_BIG | |
2544 | | (RELOC_GLOB_DAT << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2545 | } | |
2546 | else | |
2547 | { | |
7b82c249 KH |
2548 | erel->r_index[2] = (bfd_byte) (indx >> 16); |
2549 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2550 | erel->r_index[0] = (bfd_byte)indx; |
2551 | if (h == NULL) | |
2552 | erel->r_type[0] = | |
2553 | RELOC_32 << RELOC_EXT_BITS_TYPE_SH_LITTLE; | |
2554 | else | |
2555 | erel->r_type[0] = | |
2556 | (RELOC_EXT_BITS_EXTERN_LITTLE | |
2557 | | (RELOC_GLOB_DAT | |
2558 | << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2559 | } | |
2560 | PUT_WORD (dynobj, 0, erel->r_addend); | |
2561 | } | |
2562 | ||
2563 | ++s->reloc_count; | |
2564 | } | |
2565 | ||
2566 | *got_offsetp |= 1; | |
2567 | } | |
2568 | ||
2569 | *relocationp = (sgot->vma | |
dc810e39 | 2570 | + (*got_offsetp &~ (bfd_vma) 1) |
252b5132 RH |
2571 | - sunos_hash_table (info)->got_base); |
2572 | ||
2573 | /* There is nothing else to do for a base relative reloc. */ | |
b34976b6 | 2574 | return TRUE; |
252b5132 RH |
2575 | } |
2576 | ||
2577 | if (! sunos_hash_table (info)->dynamic_sections_needed) | |
b34976b6 | 2578 | return TRUE; |
252b5132 RH |
2579 | if (! info->shared) |
2580 | { | |
2581 | if (h == NULL | |
2582 | || h->dynindx == -1 | |
2583 | || h->root.root.type != bfd_link_hash_undefined | |
2584 | || (h->flags & SUNOS_DEF_REGULAR) != 0 | |
2585 | || (h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
2586 | || (h->root.root.u.undef.abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 2587 | return TRUE; |
252b5132 RH |
2588 | } |
2589 | else | |
2590 | { | |
2591 | if (h != NULL | |
2592 | && (h->dynindx == -1 | |
2593 | || jmptbl | |
2594 | || strcmp (h->root.root.root.string, | |
2595 | "__GLOBAL_OFFSET_TABLE_") == 0)) | |
b34976b6 | 2596 | return TRUE; |
252b5132 RH |
2597 | } |
2598 | ||
2599 | /* It looks like this is a reloc we are supposed to copy. */ | |
2600 | ||
87e0a731 | 2601 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 | 2602 | BFD_ASSERT (s != NULL); |
eea6121a | 2603 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) < s->size); |
252b5132 RH |
2604 | |
2605 | p = s->contents + s->reloc_count * obj_reloc_entry_size (dynobj); | |
2606 | ||
2607 | /* Copy the reloc over. */ | |
2608 | memcpy (p, reloc, obj_reloc_entry_size (dynobj)); | |
2609 | ||
2610 | if (h != NULL) | |
2611 | indx = h->dynindx; | |
2612 | else | |
2613 | indx = 0; | |
2614 | ||
2615 | /* Adjust the address and symbol index. */ | |
2616 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2617 | { | |
2618 | struct reloc_std_external *srel; | |
2619 | ||
2620 | srel = (struct reloc_std_external *) p; | |
2621 | PUT_WORD (dynobj, | |
2622 | (GET_WORD (dynobj, srel->r_address) | |
2623 | + input_section->output_section->vma | |
2624 | + input_section->output_offset), | |
2625 | srel->r_address); | |
2626 | if (bfd_header_big_endian (dynobj)) | |
2627 | { | |
7b82c249 KH |
2628 | srel->r_index[0] = (bfd_byte) (indx >> 16); |
2629 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2630 | srel->r_index[2] = (bfd_byte)indx; |
2631 | } | |
2632 | else | |
2633 | { | |
7b82c249 KH |
2634 | srel->r_index[2] = (bfd_byte) (indx >> 16); |
2635 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2636 | srel->r_index[0] = (bfd_byte)indx; |
2637 | } | |
2638 | /* FIXME: We may have to change the addend for a PC relative | |
b34976b6 | 2639 | reloc. */ |
252b5132 RH |
2640 | } |
2641 | else | |
2642 | { | |
2643 | struct reloc_ext_external *erel; | |
2644 | ||
2645 | erel = (struct reloc_ext_external *) p; | |
2646 | PUT_WORD (dynobj, | |
2647 | (GET_WORD (dynobj, erel->r_address) | |
2648 | + input_section->output_section->vma | |
2649 | + input_section->output_offset), | |
2650 | erel->r_address); | |
2651 | if (bfd_header_big_endian (dynobj)) | |
2652 | { | |
7b82c249 KH |
2653 | erel->r_index[0] = (bfd_byte) (indx >> 16); |
2654 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2655 | erel->r_index[2] = (bfd_byte)indx; |
2656 | } | |
2657 | else | |
2658 | { | |
7b82c249 KH |
2659 | erel->r_index[2] = (bfd_byte) (indx >> 16); |
2660 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2661 | erel->r_index[0] = (bfd_byte)indx; |
2662 | } | |
2663 | if (pcrel && h != NULL) | |
2664 | { | |
2665 | /* Adjust the addend for the change in address. */ | |
2666 | PUT_WORD (dynobj, | |
2667 | (GET_WORD (dynobj, erel->r_addend) | |
2668 | - (input_section->output_section->vma | |
2669 | + input_section->output_offset | |
2670 | - input_section->vma)), | |
2671 | erel->r_addend); | |
2672 | } | |
2673 | } | |
2674 | ||
2675 | ++s->reloc_count; | |
2676 | ||
2677 | if (h != NULL) | |
b34976b6 | 2678 | *skip = TRUE; |
252b5132 | 2679 | |
b34976b6 | 2680 | return TRUE; |
252b5132 RH |
2681 | } |
2682 | ||
2683 | /* Finish up the dynamic linking information. */ | |
2684 | ||
b34976b6 | 2685 | static bfd_boolean |
116c20d2 | 2686 | sunos_finish_dynamic_link (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
2687 | { |
2688 | bfd *dynobj; | |
2689 | asection *o; | |
2690 | asection *s; | |
2691 | asection *sdyn; | |
2692 | ||
2693 | if (! sunos_hash_table (info)->dynamic_sections_needed | |
2694 | && ! sunos_hash_table (info)->got_needed) | |
b34976b6 | 2695 | return TRUE; |
252b5132 RH |
2696 | |
2697 | dynobj = sunos_hash_table (info)->dynobj; | |
2698 | ||
87e0a731 | 2699 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
252b5132 RH |
2700 | BFD_ASSERT (sdyn != NULL); |
2701 | ||
2702 | /* Finish up the .need section. The linker emulation code filled it | |
2703 | in, but with offsets from the start of the section instead of | |
2704 | real addresses. Now that we know the section location, we can | |
2705 | fill in the final values. */ | |
2706 | s = bfd_get_section_by_name (dynobj, ".need"); | |
eea6121a | 2707 | if (s != NULL && s->size != 0) |
252b5132 RH |
2708 | { |
2709 | file_ptr filepos; | |
2710 | bfd_byte *p; | |
2711 | ||
2712 | filepos = s->output_section->filepos + s->output_offset; | |
2713 | p = s->contents; | |
2714 | while (1) | |
2715 | { | |
2716 | bfd_vma val; | |
2717 | ||
2718 | PUT_WORD (dynobj, GET_WORD (dynobj, p) + filepos, p); | |
2719 | val = GET_WORD (dynobj, p + 12); | |
2720 | if (val == 0) | |
2721 | break; | |
2722 | PUT_WORD (dynobj, val + filepos, p + 12); | |
2723 | p += 16; | |
2724 | } | |
2725 | } | |
2726 | ||
2727 | /* The first entry in the .got section is the address of the | |
2728 | dynamic information, unless this is a shared library. */ | |
87e0a731 | 2729 | s = bfd_get_linker_section (dynobj, ".got"); |
252b5132 | 2730 | BFD_ASSERT (s != NULL); |
eea6121a | 2731 | if (info->shared || sdyn->size == 0) |
252b5132 RH |
2732 | PUT_WORD (dynobj, 0, s->contents); |
2733 | else | |
2734 | PUT_WORD (dynobj, sdyn->output_section->vma + sdyn->output_offset, | |
2735 | s->contents); | |
2736 | ||
2737 | for (o = dynobj->sections; o != NULL; o = o->next) | |
2738 | { | |
2739 | if ((o->flags & SEC_HAS_CONTENTS) != 0 | |
2740 | && o->contents != NULL) | |
2741 | { | |
2742 | BFD_ASSERT (o->output_section != NULL | |
2743 | && o->output_section->owner == abfd); | |
2744 | if (! bfd_set_section_contents (abfd, o->output_section, | |
dc810e39 AM |
2745 | o->contents, |
2746 | (file_ptr) o->output_offset, | |
eea6121a | 2747 | o->size)) |
b34976b6 | 2748 | return FALSE; |
252b5132 RH |
2749 | } |
2750 | } | |
2751 | ||
eea6121a | 2752 | if (sdyn->size > 0) |
252b5132 RH |
2753 | { |
2754 | struct external_sun4_dynamic esd; | |
2755 | struct external_sun4_dynamic_link esdl; | |
dc810e39 | 2756 | file_ptr pos; |
252b5132 RH |
2757 | |
2758 | /* Finish up the dynamic link information. */ | |
2759 | PUT_WORD (dynobj, (bfd_vma) 3, esd.ld_version); | |
2760 | PUT_WORD (dynobj, | |
2761 | sdyn->output_section->vma + sdyn->output_offset + sizeof esd, | |
2762 | esd.ldd); | |
2763 | PUT_WORD (dynobj, | |
2764 | (sdyn->output_section->vma | |
2765 | + sdyn->output_offset | |
2766 | + sizeof esd | |
2767 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE), | |
2768 | esd.ld); | |
2769 | ||
2770 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esd, | |
dc810e39 AM |
2771 | (file_ptr) sdyn->output_offset, |
2772 | (bfd_size_type) sizeof esd)) | |
b34976b6 | 2773 | return FALSE; |
252b5132 RH |
2774 | |
2775 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_loaded); | |
2776 | ||
2777 | s = bfd_get_section_by_name (dynobj, ".need"); | |
eea6121a | 2778 | if (s == NULL || s->size == 0) |
252b5132 RH |
2779 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_need); |
2780 | else | |
2781 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2782 | esdl.ld_need); | |
2783 | ||
2784 | s = bfd_get_section_by_name (dynobj, ".rules"); | |
eea6121a | 2785 | if (s == NULL || s->size == 0) |
252b5132 RH |
2786 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_rules); |
2787 | else | |
2788 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2789 | esdl.ld_rules); | |
2790 | ||
87e0a731 | 2791 | s = bfd_get_linker_section (dynobj, ".got"); |
252b5132 RH |
2792 | BFD_ASSERT (s != NULL); |
2793 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, | |
2794 | esdl.ld_got); | |
2795 | ||
87e0a731 | 2796 | s = bfd_get_linker_section (dynobj, ".plt"); |
252b5132 RH |
2797 | BFD_ASSERT (s != NULL); |
2798 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, | |
2799 | esdl.ld_plt); | |
eea6121a | 2800 | PUT_WORD (dynobj, s->size, esdl.ld_plt_sz); |
252b5132 | 2801 | |
87e0a731 | 2802 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 RH |
2803 | BFD_ASSERT (s != NULL); |
2804 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2805 | == s->size); |
252b5132 RH |
2806 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, |
2807 | esdl.ld_rel); | |
2808 | ||
87e0a731 | 2809 | s = bfd_get_linker_section (dynobj, ".hash"); |
252b5132 RH |
2810 | BFD_ASSERT (s != NULL); |
2811 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2812 | esdl.ld_hash); | |
2813 | ||
87e0a731 | 2814 | s = bfd_get_linker_section (dynobj, ".dynsym"); |
252b5132 RH |
2815 | BFD_ASSERT (s != NULL); |
2816 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2817 | esdl.ld_stab); | |
2818 | ||
2819 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_stab_hash); | |
2820 | ||
2821 | PUT_WORD (dynobj, (bfd_vma) sunos_hash_table (info)->bucketcount, | |
2822 | esdl.ld_buckets); | |
2823 | ||
87e0a731 | 2824 | s = bfd_get_linker_section (dynobj, ".dynstr"); |
252b5132 RH |
2825 | BFD_ASSERT (s != NULL); |
2826 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2827 | esdl.ld_symbols); | |
eea6121a | 2828 | PUT_WORD (dynobj, s->size, esdl.ld_symb_size); |
252b5132 RH |
2829 | |
2830 | /* The size of the text area is the size of the .text section | |
2831 | rounded up to a page boundary. FIXME: Should the page size be | |
2832 | conditional on something? */ | |
2833 | PUT_WORD (dynobj, | |
eea6121a | 2834 | BFD_ALIGN (obj_textsec (abfd)->size, 0x2000), |
252b5132 | 2835 | esdl.ld_text); |
7b82c249 | 2836 | |
dc810e39 AM |
2837 | pos = sdyn->output_offset; |
2838 | pos += sizeof esd + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE; | |
252b5132 | 2839 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esdl, |
dc810e39 | 2840 | pos, (bfd_size_type) sizeof esdl)) |
b34976b6 | 2841 | return FALSE; |
252b5132 RH |
2842 | |
2843 | abfd->flags |= DYNAMIC; | |
2844 | } | |
2845 | ||
b34976b6 | 2846 | return TRUE; |
252b5132 | 2847 | } |