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 | |
116c20d2 NC |
682 | ret = bfd_malloc (amt); |
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 | ||
693 | ret->dynobj = NULL; | |
b34976b6 AM |
694 | ret->dynamic_sections_created = FALSE; |
695 | ret->dynamic_sections_needed = FALSE; | |
696 | ret->got_needed = FALSE; | |
252b5132 RH |
697 | ret->dynsymcount = 0; |
698 | ret->bucketcount = 0; | |
699 | ret->needed = NULL; | |
700 | ret->got_base = 0; | |
701 | ||
702 | return &ret->root.root; | |
703 | } | |
704 | ||
705 | /* Look up an entry in an SunOS link hash table. */ | |
706 | ||
707 | #define sunos_link_hash_lookup(table, string, create, copy, follow) \ | |
708 | ((struct sunos_link_hash_entry *) \ | |
709 | aout_link_hash_lookup (&(table)->root, (string), (create), (copy),\ | |
710 | (follow))) | |
711 | ||
712 | /* Traverse a SunOS link hash table. */ | |
713 | ||
714 | #define sunos_link_hash_traverse(table, func, info) \ | |
715 | (aout_link_hash_traverse \ | |
716 | (&(table)->root, \ | |
116c20d2 | 717 | (bfd_boolean (*) (struct aout_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
718 | (info))) |
719 | ||
720 | /* Get the SunOS link hash table from the info structure. This is | |
721 | just a cast. */ | |
722 | ||
723 | #define sunos_hash_table(p) ((struct sunos_link_hash_table *) ((p)->hash)) | |
724 | ||
252b5132 RH |
725 | /* Create the dynamic sections needed if we are linking against a |
726 | dynamic object, or if we are linking PIC compiled code. ABFD is a | |
727 | bfd we can attach the dynamic sections to. The linker script will | |
728 | look for these special sections names and put them in the right | |
729 | place in the output file. See include/aout/sun4.h for more details | |
730 | of the dynamic linking information. */ | |
731 | ||
b34976b6 | 732 | static bfd_boolean |
116c20d2 NC |
733 | sunos_create_dynamic_sections (bfd *abfd, |
734 | struct bfd_link_info *info, | |
735 | bfd_boolean needed) | |
252b5132 RH |
736 | { |
737 | asection *s; | |
738 | ||
739 | if (! sunos_hash_table (info)->dynamic_sections_created) | |
740 | { | |
741 | flagword flags; | |
742 | ||
743 | sunos_hash_table (info)->dynobj = abfd; | |
744 | ||
745 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
746 | | SEC_LINKER_CREATED); | |
747 | ||
748 | /* The .dynamic section holds the basic dynamic information: the | |
749 | sun4_dynamic structure, the dynamic debugger information, and | |
750 | the sun4_dynamic_link structure. */ | |
87e0a731 | 751 | s = bfd_make_section_anyway_with_flags (abfd, ".dynamic", flags); |
252b5132 | 752 | if (s == NULL |
252b5132 | 753 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 754 | return FALSE; |
252b5132 RH |
755 | |
756 | /* The .got section holds the global offset table. The address | |
757 | is put in the ld_got field. */ | |
87e0a731 | 758 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
252b5132 | 759 | if (s == NULL |
252b5132 | 760 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 761 | return FALSE; |
252b5132 RH |
762 | |
763 | /* The .plt section holds the procedure linkage table. The | |
764 | address is put in the ld_plt field. */ | |
87e0a731 | 765 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", flags | SEC_CODE); |
252b5132 | 766 | if (s == NULL |
252b5132 | 767 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 768 | return FALSE; |
252b5132 RH |
769 | |
770 | /* The .dynrel section holds the dynamic relocs. The address is | |
771 | put in the ld_rel field. */ | |
87e0a731 AM |
772 | s = bfd_make_section_anyway_with_flags (abfd, ".dynrel", |
773 | flags | SEC_READONLY); | |
252b5132 | 774 | if (s == NULL |
252b5132 | 775 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 776 | return FALSE; |
252b5132 RH |
777 | |
778 | /* The .hash section holds the dynamic hash table. The address | |
779 | is put in the ld_hash field. */ | |
87e0a731 AM |
780 | s = bfd_make_section_anyway_with_flags (abfd, ".hash", |
781 | flags | SEC_READONLY); | |
252b5132 | 782 | if (s == NULL |
252b5132 | 783 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 784 | return FALSE; |
252b5132 RH |
785 | |
786 | /* The .dynsym section holds the dynamic symbols. The address | |
787 | is put in the ld_stab field. */ | |
87e0a731 AM |
788 | s = bfd_make_section_anyway_with_flags (abfd, ".dynsym", |
789 | flags | SEC_READONLY); | |
252b5132 | 790 | if (s == NULL |
252b5132 | 791 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 792 | return FALSE; |
252b5132 RH |
793 | |
794 | /* The .dynstr section holds the dynamic symbol string table. | |
795 | The address is put in the ld_symbols field. */ | |
87e0a731 AM |
796 | s = bfd_make_section_anyway_with_flags (abfd, ".dynstr", |
797 | flags | SEC_READONLY); | |
252b5132 | 798 | if (s == NULL |
252b5132 | 799 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 800 | return FALSE; |
252b5132 | 801 | |
b34976b6 | 802 | sunos_hash_table (info)->dynamic_sections_created = TRUE; |
252b5132 RH |
803 | } |
804 | ||
805 | if ((needed && ! sunos_hash_table (info)->dynamic_sections_needed) | |
806 | || info->shared) | |
807 | { | |
808 | bfd *dynobj; | |
809 | ||
810 | dynobj = sunos_hash_table (info)->dynobj; | |
811 | ||
87e0a731 | 812 | s = bfd_get_linker_section (dynobj, ".got"); |
eea6121a AM |
813 | if (s->size == 0) |
814 | s->size = BYTES_IN_WORD; | |
252b5132 | 815 | |
b34976b6 AM |
816 | sunos_hash_table (info)->dynamic_sections_needed = TRUE; |
817 | sunos_hash_table (info)->got_needed = TRUE; | |
252b5132 RH |
818 | } |
819 | ||
b34976b6 | 820 | return TRUE; |
252b5132 RH |
821 | } |
822 | ||
823 | /* Add dynamic symbols during a link. This is called by the a.out | |
824 | backend linker for each object it encounters. */ | |
825 | ||
b34976b6 | 826 | static bfd_boolean |
116c20d2 NC |
827 | sunos_add_dynamic_symbols (bfd *abfd, |
828 | struct bfd_link_info *info, | |
829 | struct external_nlist **symsp, | |
830 | bfd_size_type *sym_countp, | |
831 | char **stringsp) | |
252b5132 | 832 | { |
252b5132 RH |
833 | bfd *dynobj; |
834 | struct sunos_dynamic_info *dinfo; | |
835 | unsigned long need; | |
836 | ||
837 | /* Make sure we have all the required sections. */ | |
f13a99db | 838 | if (info->output_bfd->xvec == abfd->xvec) |
252b5132 RH |
839 | { |
840 | if (! sunos_create_dynamic_sections (abfd, info, | |
b34976b6 | 841 | ((abfd->flags & DYNAMIC) != 0 |
1049f94e | 842 | && !info->relocatable))) |
b34976b6 | 843 | return FALSE; |
252b5132 RH |
844 | } |
845 | ||
846 | /* There is nothing else to do for a normal object. */ | |
847 | if ((abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 848 | return TRUE; |
252b5132 RH |
849 | |
850 | dynobj = sunos_hash_table (info)->dynobj; | |
851 | ||
852 | /* We do not want to include the sections in a dynamic object in the | |
853 | output file. We hack by simply clobbering the list of sections | |
854 | in the BFD. This could be handled more cleanly by, say, a new | |
855 | section flag; the existing SEC_NEVER_LOAD flag is not the one we | |
856 | want, because that one still implies that the section takes up | |
857 | space in the output file. If this is the first object we have | |
858 | seen, we must preserve the dynamic sections we just created. */ | |
5daa8fe7 L |
859 | if (abfd != dynobj) |
860 | abfd->sections = NULL; | |
861 | else | |
252b5132 | 862 | { |
04dd1667 | 863 | asection *s; |
5daa8fe7 | 864 | |
04dd1667 | 865 | for (s = abfd->sections; s != NULL; s = s->next) |
5daa8fe7 | 866 | { |
5daa8fe7 L |
867 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
868 | bfd_section_list_remove (abfd, s); | |
869 | } | |
252b5132 RH |
870 | } |
871 | ||
872 | /* The native linker seems to just ignore dynamic objects when -r is | |
873 | used. */ | |
1049f94e | 874 | if (info->relocatable) |
b34976b6 | 875 | return TRUE; |
252b5132 RH |
876 | |
877 | /* There's no hope of using a dynamic object which does not exactly | |
878 | match the format of the output file. */ | |
f13a99db | 879 | if (info->output_bfd->xvec != abfd->xvec) |
252b5132 RH |
880 | { |
881 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 882 | return FALSE; |
252b5132 RH |
883 | } |
884 | ||
885 | /* Make sure we have a .need and a .rules sections. These are only | |
886 | needed if there really is a dynamic object in the link, so they | |
887 | are not added by sunos_create_dynamic_sections. */ | |
888 | if (bfd_get_section_by_name (dynobj, ".need") == NULL) | |
889 | { | |
890 | /* The .need section holds the list of names of shared objets | |
891 | which must be included at runtime. The address of this | |
892 | section is put in the ld_need field. */ | |
117ed4f8 AM |
893 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
894 | | SEC_IN_MEMORY | SEC_READONLY); | |
895 | asection *s = bfd_make_section_with_flags (dynobj, ".need", flags); | |
252b5132 | 896 | if (s == NULL |
252b5132 | 897 | || ! bfd_set_section_alignment (dynobj, s, 2)) |
b34976b6 | 898 | return FALSE; |
252b5132 RH |
899 | } |
900 | ||
901 | if (bfd_get_section_by_name (dynobj, ".rules") == NULL) | |
902 | { | |
903 | /* The .rules section holds the path to search for shared | |
904 | objects. The address of this section is put in the ld_rules | |
905 | field. */ | |
117ed4f8 AM |
906 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
907 | | SEC_IN_MEMORY | SEC_READONLY); | |
908 | asection *s = bfd_make_section_with_flags (dynobj, ".rules", flags); | |
252b5132 | 909 | if (s == NULL |
252b5132 | 910 | || ! bfd_set_section_alignment (dynobj, s, 2)) |
b34976b6 | 911 | return FALSE; |
252b5132 RH |
912 | } |
913 | ||
914 | /* Pick up the dynamic symbols and return them to the caller. */ | |
915 | if (! sunos_slurp_dynamic_symtab (abfd)) | |
b34976b6 | 916 | return FALSE; |
252b5132 RH |
917 | |
918 | dinfo = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd); | |
919 | *symsp = dinfo->dynsym; | |
920 | *sym_countp = dinfo->dynsym_count; | |
921 | *stringsp = dinfo->dynstr; | |
922 | ||
923 | /* Record information about any other objects needed by this one. */ | |
924 | need = dinfo->dyninfo.ld_need; | |
925 | while (need != 0) | |
926 | { | |
927 | bfd_byte buf[16]; | |
928 | unsigned long name, flags; | |
929 | unsigned short major_vno, minor_vno; | |
930 | struct bfd_link_needed_list *needed, **pp; | |
931 | char *namebuf, *p; | |
dc810e39 | 932 | bfd_size_type alc; |
252b5132 RH |
933 | bfd_byte b; |
934 | char *namecopy; | |
935 | ||
dc810e39 AM |
936 | if (bfd_seek (abfd, (file_ptr) need, SEEK_SET) != 0 |
937 | || bfd_bread (buf, (bfd_size_type) 16, abfd) != 16) | |
b34976b6 | 938 | return FALSE; |
252b5132 RH |
939 | |
940 | /* For the format of an ld_need entry, see aout/sun4.h. We | |
b34976b6 | 941 | should probably define structs for this manipulation. */ |
252b5132 RH |
942 | name = bfd_get_32 (abfd, buf); |
943 | flags = bfd_get_32 (abfd, buf + 4); | |
dc810e39 AM |
944 | major_vno = (unsigned short) bfd_get_16 (abfd, buf + 8); |
945 | minor_vno = (unsigned short) bfd_get_16 (abfd, buf + 10); | |
252b5132 RH |
946 | need = bfd_get_32 (abfd, buf + 12); |
947 | ||
dc810e39 | 948 | alc = sizeof (struct bfd_link_needed_list); |
116c20d2 | 949 | needed = bfd_alloc (abfd, alc); |
252b5132 | 950 | if (needed == NULL) |
b34976b6 | 951 | return FALSE; |
252b5132 RH |
952 | needed->by = abfd; |
953 | ||
954 | /* We return the name as [-l]name[.maj][.min]. */ | |
955 | alc = 30; | |
116c20d2 | 956 | namebuf = bfd_malloc (alc + 1); |
252b5132 | 957 | if (namebuf == NULL) |
b34976b6 | 958 | return FALSE; |
252b5132 RH |
959 | p = namebuf; |
960 | ||
961 | if ((flags & 0x80000000) != 0) | |
962 | { | |
963 | *p++ = '-'; | |
964 | *p++ = 'l'; | |
965 | } | |
dc810e39 | 966 | if (bfd_seek (abfd, (file_ptr) name, SEEK_SET) != 0) |
252b5132 RH |
967 | { |
968 | free (namebuf); | |
b34976b6 | 969 | return FALSE; |
252b5132 RH |
970 | } |
971 | ||
972 | do | |
973 | { | |
dc810e39 | 974 | if (bfd_bread (&b, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
975 | { |
976 | free (namebuf); | |
b34976b6 | 977 | return FALSE; |
252b5132 RH |
978 | } |
979 | ||
dc810e39 | 980 | if ((bfd_size_type) (p - namebuf) >= alc) |
252b5132 RH |
981 | { |
982 | char *n; | |
983 | ||
984 | alc *= 2; | |
116c20d2 | 985 | n = bfd_realloc (namebuf, alc + 1); |
252b5132 RH |
986 | if (n == NULL) |
987 | { | |
988 | free (namebuf); | |
b34976b6 | 989 | return FALSE; |
252b5132 RH |
990 | } |
991 | p = n + (p - namebuf); | |
992 | namebuf = n; | |
993 | } | |
994 | ||
995 | *p++ = b; | |
996 | } | |
997 | while (b != '\0'); | |
998 | ||
999 | if (major_vno == 0) | |
1000 | *p = '\0'; | |
1001 | else | |
1002 | { | |
1003 | char majbuf[30]; | |
1004 | char minbuf[30]; | |
1005 | ||
1006 | sprintf (majbuf, ".%d", major_vno); | |
1007 | if (minor_vno == 0) | |
1008 | minbuf[0] = '\0'; | |
1009 | else | |
1010 | sprintf (minbuf, ".%d", minor_vno); | |
1011 | ||
1012 | if ((p - namebuf) + strlen (majbuf) + strlen (minbuf) >= alc) | |
1013 | { | |
1014 | char *n; | |
1015 | ||
1016 | alc = (p - namebuf) + strlen (majbuf) + strlen (minbuf); | |
116c20d2 | 1017 | n = bfd_realloc (namebuf, alc + 1); |
252b5132 RH |
1018 | if (n == NULL) |
1019 | { | |
1020 | free (namebuf); | |
b34976b6 | 1021 | return FALSE; |
252b5132 RH |
1022 | } |
1023 | p = n + (p - namebuf); | |
1024 | namebuf = n; | |
1025 | } | |
1026 | ||
1027 | strcpy (p, majbuf); | |
1028 | strcat (p, minbuf); | |
1029 | } | |
1030 | ||
dc810e39 | 1031 | namecopy = bfd_alloc (abfd, (bfd_size_type) strlen (namebuf) + 1); |
252b5132 RH |
1032 | if (namecopy == NULL) |
1033 | { | |
1034 | free (namebuf); | |
b34976b6 | 1035 | return FALSE; |
252b5132 RH |
1036 | } |
1037 | strcpy (namecopy, namebuf); | |
1038 | free (namebuf); | |
1039 | needed->name = namecopy; | |
1040 | ||
1041 | needed->next = NULL; | |
1042 | ||
1043 | for (pp = &sunos_hash_table (info)->needed; | |
1044 | *pp != NULL; | |
1045 | pp = &(*pp)->next) | |
1046 | ; | |
1047 | *pp = needed; | |
1048 | } | |
1049 | ||
b34976b6 | 1050 | return TRUE; |
252b5132 RH |
1051 | } |
1052 | ||
1053 | /* Function to add a single symbol to the linker hash table. This is | |
1054 | a wrapper around _bfd_generic_link_add_one_symbol which handles the | |
1055 | tweaking needed for dynamic linking support. */ | |
1056 | ||
b34976b6 | 1057 | static bfd_boolean |
116c20d2 NC |
1058 | sunos_add_one_symbol (struct bfd_link_info *info, |
1059 | bfd *abfd, | |
1060 | const char *name, | |
1061 | flagword flags, | |
1062 | asection *section, | |
1063 | bfd_vma value, | |
1064 | const char *string, | |
1065 | bfd_boolean copy, | |
1066 | bfd_boolean collect, | |
1067 | struct bfd_link_hash_entry **hashp) | |
252b5132 RH |
1068 | { |
1069 | struct sunos_link_hash_entry *h; | |
1070 | int new_flag; | |
1071 | ||
1072 | if ((flags & (BSF_INDIRECT | BSF_WARNING | BSF_CONSTRUCTOR)) != 0 | |
1073 | || ! bfd_is_und_section (section)) | |
b34976b6 AM |
1074 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, TRUE, copy, |
1075 | FALSE); | |
252b5132 RH |
1076 | else |
1077 | h = ((struct sunos_link_hash_entry *) | |
b34976b6 | 1078 | bfd_wrapped_link_hash_lookup (abfd, info, name, TRUE, copy, FALSE)); |
252b5132 | 1079 | if (h == NULL) |
b34976b6 | 1080 | return FALSE; |
252b5132 RH |
1081 | |
1082 | if (hashp != NULL) | |
1083 | *hashp = (struct bfd_link_hash_entry *) h; | |
1084 | ||
1085 | /* Treat a common symbol in a dynamic object as defined in the .bss | |
1086 | section of the dynamic object. We don't want to allocate space | |
1087 | for it in our process image. */ | |
1088 | if ((abfd->flags & DYNAMIC) != 0 | |
1089 | && bfd_is_com_section (section)) | |
1090 | section = obj_bsssec (abfd); | |
1091 | ||
1092 | if (! bfd_is_und_section (section) | |
1093 | && h->root.root.type != bfd_link_hash_new | |
1094 | && h->root.root.type != bfd_link_hash_undefined | |
1095 | && h->root.root.type != bfd_link_hash_defweak) | |
1096 | { | |
1097 | /* We are defining the symbol, and it is already defined. This | |
1098 | is a potential multiple definition error. */ | |
1099 | if ((abfd->flags & DYNAMIC) != 0) | |
1100 | { | |
1101 | /* The definition we are adding is from a dynamic object. | |
1102 | We do not want this new definition to override the | |
1103 | existing definition, so we pretend it is just a | |
1104 | reference. */ | |
1105 | section = bfd_und_section_ptr; | |
1106 | } | |
1107 | else if (h->root.root.type == bfd_link_hash_defined | |
1108 | && h->root.root.u.def.section->owner != NULL | |
1109 | && (h->root.root.u.def.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. */ | |
1114 | h->root.root.type = bfd_link_hash_undefined; | |
1115 | h->root.root.u.undef.abfd = h->root.root.u.def.section->owner; | |
1116 | } | |
1117 | else if (h->root.root.type == bfd_link_hash_common | |
1118 | && (h->root.root.u.c.p->section->owner->flags & DYNAMIC) != 0) | |
1119 | { | |
1120 | /* The existing definition is from a dynamic object. We | |
1121 | want to override it with the definition we just found. | |
1122 | Clobber the existing definition. We can't set it to new, | |
1123 | because it is on the undefined list. */ | |
1124 | h->root.root.type = bfd_link_hash_undefined; | |
1125 | h->root.root.u.undef.abfd = h->root.root.u.c.p->section->owner; | |
1126 | } | |
1127 | } | |
1128 | ||
1129 | if ((abfd->flags & DYNAMIC) != 0 | |
f13a99db | 1130 | && abfd->xvec == info->output_bfd->xvec |
252b5132 | 1131 | && (h->flags & SUNOS_CONSTRUCTOR) != 0) |
116c20d2 NC |
1132 | /* The existing symbol is a constructor symbol, and this symbol |
1133 | is from a dynamic object. A constructor symbol is actually a | |
1134 | definition, although the type will be bfd_link_hash_undefined | |
1135 | at this point. We want to ignore the definition from the | |
1136 | dynamic object. */ | |
1137 | section = bfd_und_section_ptr; | |
252b5132 RH |
1138 | else if ((flags & BSF_CONSTRUCTOR) != 0 |
1139 | && (abfd->flags & DYNAMIC) == 0 | |
1140 | && h->root.root.type == bfd_link_hash_defined | |
1141 | && h->root.root.u.def.section->owner != NULL | |
1142 | && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
116c20d2 NC |
1143 | /* The existing symbol is defined by a dynamic object, and this |
1144 | is a constructor symbol. As above, we want to force the use | |
1145 | of the constructor symbol from the regular object. */ | |
1146 | h->root.root.type = bfd_link_hash_new; | |
252b5132 RH |
1147 | |
1148 | /* Do the usual procedure for adding a symbol. */ | |
1149 | if (! _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, | |
1150 | value, string, copy, collect, | |
1151 | hashp)) | |
b34976b6 | 1152 | return FALSE; |
252b5132 | 1153 | |
f13a99db | 1154 | if (abfd->xvec == info->output_bfd->xvec) |
252b5132 RH |
1155 | { |
1156 | /* Set a flag in the hash table entry indicating the type of | |
1157 | reference or definition we just found. Keep a count of the | |
1158 | number of dynamic symbols we find. A dynamic symbol is one | |
1159 | which is referenced or defined by both a regular object and a | |
1160 | shared object. */ | |
1161 | if ((abfd->flags & DYNAMIC) == 0) | |
1162 | { | |
1163 | if (bfd_is_und_section (section)) | |
1164 | new_flag = SUNOS_REF_REGULAR; | |
1165 | else | |
1166 | new_flag = SUNOS_DEF_REGULAR; | |
1167 | } | |
1168 | else | |
1169 | { | |
1170 | if (bfd_is_und_section (section)) | |
1171 | new_flag = SUNOS_REF_DYNAMIC; | |
1172 | else | |
1173 | new_flag = SUNOS_DEF_DYNAMIC; | |
1174 | } | |
1175 | h->flags |= new_flag; | |
1176 | ||
1177 | if (h->dynindx == -1 | |
1178 | && (h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1179 | { | |
1180 | ++sunos_hash_table (info)->dynsymcount; | |
1181 | h->dynindx = -2; | |
1182 | } | |
1183 | ||
1184 | if ((flags & BSF_CONSTRUCTOR) != 0 | |
1185 | && (abfd->flags & DYNAMIC) == 0) | |
1186 | h->flags |= SUNOS_CONSTRUCTOR; | |
1187 | } | |
1188 | ||
b34976b6 | 1189 | return TRUE; |
252b5132 RH |
1190 | } |
1191 | ||
116c20d2 NC |
1192 | extern const bfd_target MY (vec); |
1193 | ||
252b5132 RH |
1194 | /* Return the list of objects needed by BFD. */ |
1195 | ||
252b5132 | 1196 | struct bfd_link_needed_list * |
116c20d2 NC |
1197 | bfd_sunos_get_needed_list (bfd *abfd ATTRIBUTE_UNUSED, |
1198 | struct bfd_link_info *info) | |
252b5132 | 1199 | { |
f13a99db | 1200 | if (info->output_bfd->xvec != &MY (vec)) |
252b5132 RH |
1201 | return NULL; |
1202 | return sunos_hash_table (info)->needed; | |
1203 | } | |
1204 | ||
1205 | /* Record an assignment made to a symbol by a linker script. We need | |
1206 | this in case some dynamic object refers to this symbol. */ | |
1207 | ||
b34976b6 | 1208 | bfd_boolean |
116c20d2 NC |
1209 | bfd_sunos_record_link_assignment (bfd *output_bfd, |
1210 | struct bfd_link_info *info, | |
1211 | const char *name) | |
252b5132 RH |
1212 | { |
1213 | struct sunos_link_hash_entry *h; | |
1214 | ||
1215 | if (output_bfd->xvec != &MY(vec)) | |
b34976b6 | 1216 | return TRUE; |
252b5132 RH |
1217 | |
1218 | /* This is called after we have examined all the input objects. If | |
1219 | the symbol does not exist, it merely means that no object refers | |
1220 | to it, and we can just ignore it at this point. */ | |
1221 | h = sunos_link_hash_lookup (sunos_hash_table (info), name, | |
b34976b6 | 1222 | FALSE, FALSE, FALSE); |
252b5132 | 1223 | if (h == NULL) |
b34976b6 | 1224 | return TRUE; |
252b5132 RH |
1225 | |
1226 | /* In a shared library, the __DYNAMIC symbol does not appear in the | |
1227 | dynamic symbol table. */ | |
1228 | if (! info->shared || strcmp (name, "__DYNAMIC") != 0) | |
1229 | { | |
1230 | h->flags |= SUNOS_DEF_REGULAR; | |
1231 | ||
1232 | if (h->dynindx == -1) | |
1233 | { | |
1234 | ++sunos_hash_table (info)->dynsymcount; | |
1235 | h->dynindx = -2; | |
1236 | } | |
1237 | } | |
1238 | ||
b34976b6 | 1239 | return TRUE; |
252b5132 RH |
1240 | } |
1241 | ||
116c20d2 NC |
1242 | /* Scan the relocs for an input section using standard relocs. We |
1243 | need to figure out what to do for each reloc against a dynamic | |
1244 | symbol. If the symbol is in the .text section, an entry is made in | |
1245 | the procedure linkage table. Note that this will do the wrong | |
1246 | thing if the symbol is actually data; I don't think the Sun 3 | |
1247 | native linker handles this case correctly either. If the symbol is | |
1248 | not in the .text section, we must preserve the reloc as a dynamic | |
1249 | reloc. FIXME: We should also handle the PIC relocs here by | |
1250 | building global offset table entries. */ | |
252b5132 | 1251 | |
116c20d2 NC |
1252 | static bfd_boolean |
1253 | sunos_scan_std_relocs (struct bfd_link_info *info, | |
1254 | bfd *abfd, | |
1255 | asection *sec ATTRIBUTE_UNUSED, | |
1256 | const struct reloc_std_external *relocs, | |
1257 | bfd_size_type rel_size) | |
252b5132 RH |
1258 | { |
1259 | bfd *dynobj; | |
116c20d2 NC |
1260 | asection *splt = NULL; |
1261 | asection *srel = NULL; | |
1262 | struct sunos_link_hash_entry **sym_hashes; | |
1263 | const struct reloc_std_external *rel, *relend; | |
252b5132 | 1264 | |
116c20d2 NC |
1265 | /* We only know how to handle m68k plt entries. */ |
1266 | if (bfd_get_arch (abfd) != bfd_arch_m68k) | |
252b5132 | 1267 | { |
116c20d2 NC |
1268 | bfd_set_error (bfd_error_invalid_target); |
1269 | return FALSE; | |
252b5132 RH |
1270 | } |
1271 | ||
116c20d2 | 1272 | dynobj = NULL; |
252b5132 | 1273 | |
116c20d2 | 1274 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); |
252b5132 | 1275 | |
116c20d2 NC |
1276 | relend = relocs + rel_size / RELOC_STD_SIZE; |
1277 | for (rel = relocs; rel < relend; rel++) | |
252b5132 | 1278 | { |
116c20d2 NC |
1279 | int r_index; |
1280 | struct sunos_link_hash_entry *h; | |
1281 | ||
1282 | /* We only want relocs against external symbols. */ | |
1283 | if (bfd_header_big_endian (abfd)) | |
252b5132 | 1284 | { |
116c20d2 NC |
1285 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG) == 0) |
1286 | continue; | |
252b5132 | 1287 | } |
252b5132 | 1288 | else |
116c20d2 NC |
1289 | { |
1290 | if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE) == 0) | |
1291 | continue; | |
1292 | } | |
7b82c249 | 1293 | |
116c20d2 NC |
1294 | /* Get the symbol index. */ |
1295 | if (bfd_header_big_endian (abfd)) | |
1296 | r_index = ((rel->r_index[0] << 16) | |
1297 | | (rel->r_index[1] << 8) | |
1298 | | rel->r_index[2]); | |
252b5132 | 1299 | else |
116c20d2 NC |
1300 | r_index = ((rel->r_index[2] << 16) |
1301 | | (rel->r_index[1] << 8) | |
1302 | | rel->r_index[0]); | |
252b5132 | 1303 | |
116c20d2 NC |
1304 | /* Get the hash table entry. */ |
1305 | h = sym_hashes[r_index]; | |
1306 | if (h == NULL) | |
1307 | /* This should not normally happen, but it will in any case | |
1308 | be caught in the relocation phase. */ | |
1309 | continue; | |
252b5132 | 1310 | |
116c20d2 NC |
1311 | /* At this point common symbols have already been allocated, so |
1312 | we don't have to worry about them. We need to consider that | |
1313 | we may have already seen this symbol and marked it undefined; | |
1314 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC | |
1315 | will be zero. */ | |
1316 | if (h->root.root.type != bfd_link_hash_defined | |
1317 | && h->root.root.type != bfd_link_hash_defweak | |
1318 | && h->root.root.type != bfd_link_hash_undefined) | |
1319 | continue; | |
252b5132 | 1320 | |
116c20d2 NC |
1321 | if ((h->flags & SUNOS_DEF_DYNAMIC) == 0 |
1322 | || (h->flags & SUNOS_DEF_REGULAR) != 0) | |
1323 | continue; | |
1324 | ||
1325 | if (dynobj == NULL) | |
252b5132 | 1326 | { |
116c20d2 | 1327 | asection *sgot; |
252b5132 | 1328 | |
116c20d2 | 1329 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
b34976b6 | 1330 | return FALSE; |
116c20d2 | 1331 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1332 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1333 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
116c20d2 NC |
1334 | BFD_ASSERT (splt != NULL && srel != NULL); |
1335 | ||
87e0a731 | 1336 | sgot = bfd_get_linker_section (dynobj, ".got"); |
116c20d2 NC |
1337 | BFD_ASSERT (sgot != NULL); |
1338 | if (sgot->size == 0) | |
1339 | sgot->size = BYTES_IN_WORD; | |
1340 | sunos_hash_table (info)->got_needed = TRUE; | |
252b5132 | 1341 | } |
252b5132 | 1342 | |
116c20d2 NC |
1343 | BFD_ASSERT ((h->flags & SUNOS_REF_REGULAR) != 0); |
1344 | BFD_ASSERT (h->plt_offset != 0 | |
1345 | || ((h->root.root.type == bfd_link_hash_defined | |
1346 | || h->root.root.type == bfd_link_hash_defweak) | |
1347 | ? (h->root.root.u.def.section->owner->flags | |
1348 | & DYNAMIC) != 0 | |
1349 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
252b5132 | 1350 | |
116c20d2 NC |
1351 | /* This reloc is against a symbol defined only by a dynamic |
1352 | object. */ | |
1353 | if (h->root.root.type == bfd_link_hash_undefined) | |
1354 | /* Presumably this symbol was marked as being undefined by | |
1355 | an earlier reloc. */ | |
1356 | srel->size += RELOC_STD_SIZE; | |
1357 | else if ((h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
252b5132 | 1358 | { |
116c20d2 | 1359 | bfd *sub; |
252b5132 RH |
1360 | |
1361 | /* This reloc is not in the .text section. It must be | |
1362 | copied into the dynamic relocs. We mark the symbol as | |
1363 | being undefined. */ | |
eea6121a | 1364 | srel->size += RELOC_STD_SIZE; |
252b5132 RH |
1365 | sub = h->root.root.u.def.section->owner; |
1366 | h->root.root.type = bfd_link_hash_undefined; | |
1367 | h->root.root.u.undef.abfd = sub; | |
1368 | } | |
1369 | else | |
1370 | { | |
1371 | /* This symbol is in the .text section. We must give it an | |
1372 | entry in the procedure linkage table, if we have not | |
1373 | already done so. We change the definition of the symbol | |
1374 | to the .plt section; this will cause relocs against it to | |
1375 | be handled correctly. */ | |
1376 | if (h->plt_offset == 0) | |
1377 | { | |
eea6121a AM |
1378 | if (splt->size == 0) |
1379 | splt->size = M68K_PLT_ENTRY_SIZE; | |
1380 | h->plt_offset = splt->size; | |
252b5132 RH |
1381 | |
1382 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1383 | { | |
1384 | h->root.root.u.def.section = splt; | |
eea6121a | 1385 | h->root.root.u.def.value = splt->size; |
252b5132 RH |
1386 | } |
1387 | ||
eea6121a | 1388 | splt->size += M68K_PLT_ENTRY_SIZE; |
252b5132 RH |
1389 | |
1390 | /* We may also need a dynamic reloc entry. */ | |
1391 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
eea6121a | 1392 | srel->size += RELOC_STD_SIZE; |
252b5132 RH |
1393 | } |
1394 | } | |
1395 | } | |
1396 | ||
b34976b6 | 1397 | return TRUE; |
252b5132 RH |
1398 | } |
1399 | ||
1400 | /* Scan the relocs for an input section using extended relocs. We | |
1401 | need to figure out what to do for each reloc against a dynamic | |
1402 | symbol. If the reloc is a WDISP30, and the symbol is in the .text | |
1403 | section, an entry is made in the procedure linkage table. | |
1404 | Otherwise, we must preserve the reloc as a dynamic reloc. */ | |
1405 | ||
b34976b6 | 1406 | static bfd_boolean |
116c20d2 NC |
1407 | sunos_scan_ext_relocs (struct bfd_link_info *info, |
1408 | bfd *abfd, | |
1409 | asection *sec ATTRIBUTE_UNUSED, | |
1410 | const struct reloc_ext_external *relocs, | |
1411 | bfd_size_type rel_size) | |
252b5132 RH |
1412 | { |
1413 | bfd *dynobj; | |
1414 | struct sunos_link_hash_entry **sym_hashes; | |
1415 | const struct reloc_ext_external *rel, *relend; | |
1416 | asection *splt = NULL; | |
1417 | asection *sgot = NULL; | |
1418 | asection *srel = NULL; | |
dc810e39 | 1419 | bfd_size_type amt; |
252b5132 RH |
1420 | |
1421 | /* We only know how to handle SPARC plt entries. */ | |
1422 | if (bfd_get_arch (abfd) != bfd_arch_sparc) | |
1423 | { | |
1424 | bfd_set_error (bfd_error_invalid_target); | |
b34976b6 | 1425 | return FALSE; |
252b5132 RH |
1426 | } |
1427 | ||
1428 | dynobj = NULL; | |
1429 | ||
1430 | sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); | |
1431 | ||
1432 | relend = relocs + rel_size / RELOC_EXT_SIZE; | |
1433 | for (rel = relocs; rel < relend; rel++) | |
1434 | { | |
1435 | unsigned int r_index; | |
1436 | int r_extern; | |
1437 | int r_type; | |
1438 | struct sunos_link_hash_entry *h = NULL; | |
1439 | ||
1440 | /* Swap in the reloc information. */ | |
1441 | if (bfd_header_big_endian (abfd)) | |
1442 | { | |
1443 | r_index = ((rel->r_index[0] << 16) | |
1444 | | (rel->r_index[1] << 8) | |
1445 | | rel->r_index[2]); | |
1446 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG)); | |
1447 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
1448 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
1449 | } | |
1450 | else | |
1451 | { | |
1452 | r_index = ((rel->r_index[2] << 16) | |
1453 | | (rel->r_index[1] << 8) | |
1454 | | rel->r_index[0]); | |
1455 | r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE)); | |
1456 | r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
1457 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
1458 | } | |
1459 | ||
1460 | if (r_extern) | |
1461 | { | |
1462 | h = sym_hashes[r_index]; | |
1463 | if (h == NULL) | |
1464 | { | |
1465 | /* This should not normally happen, but it will in any | |
1466 | case be caught in the relocation phase. */ | |
1467 | continue; | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | /* If this is a base relative reloc, we need to make an entry in | |
b34976b6 | 1472 | the .got section. */ |
252b5132 RH |
1473 | if (r_type == RELOC_BASE10 |
1474 | || r_type == RELOC_BASE13 | |
1475 | || r_type == RELOC_BASE22) | |
1476 | { | |
1477 | if (dynobj == NULL) | |
1478 | { | |
b34976b6 AM |
1479 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
1480 | return FALSE; | |
252b5132 | 1481 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1482 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1483 | sgot = bfd_get_linker_section (dynobj, ".got"); | |
1484 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
252b5132 RH |
1485 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
1486 | ||
1487 | /* Make sure we have an initial entry in the .got table. */ | |
eea6121a AM |
1488 | if (sgot->size == 0) |
1489 | sgot->size = BYTES_IN_WORD; | |
b34976b6 | 1490 | sunos_hash_table (info)->got_needed = TRUE; |
252b5132 RH |
1491 | } |
1492 | ||
1493 | if (r_extern) | |
1494 | { | |
1495 | if (h->got_offset != 0) | |
1496 | continue; | |
1497 | ||
eea6121a | 1498 | h->got_offset = sgot->size; |
252b5132 RH |
1499 | } |
1500 | else | |
1501 | { | |
1502 | if (r_index >= bfd_get_symcount (abfd)) | |
116c20d2 NC |
1503 | /* This is abnormal, but should be caught in the |
1504 | relocation phase. */ | |
1505 | continue; | |
252b5132 RH |
1506 | |
1507 | if (adata (abfd).local_got_offsets == NULL) | |
1508 | { | |
dc810e39 AM |
1509 | amt = bfd_get_symcount (abfd); |
1510 | amt *= sizeof (bfd_vma); | |
116c20d2 | 1511 | adata (abfd).local_got_offsets = bfd_zalloc (abfd, amt); |
252b5132 | 1512 | if (adata (abfd).local_got_offsets == NULL) |
b34976b6 | 1513 | return FALSE; |
252b5132 RH |
1514 | } |
1515 | ||
1516 | if (adata (abfd).local_got_offsets[r_index] != 0) | |
1517 | continue; | |
1518 | ||
eea6121a | 1519 | adata (abfd).local_got_offsets[r_index] = sgot->size; |
252b5132 RH |
1520 | } |
1521 | ||
eea6121a | 1522 | sgot->size += BYTES_IN_WORD; |
252b5132 RH |
1523 | |
1524 | /* If we are making a shared library, or if the symbol is | |
1525 | defined by a dynamic object, we will need a dynamic reloc | |
1526 | entry. */ | |
1527 | if (info->shared | |
1528 | || (h != NULL | |
1529 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1530 | && (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
eea6121a | 1531 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1532 | |
1533 | continue; | |
1534 | } | |
1535 | ||
1536 | /* Otherwise, we are only interested in relocs against symbols | |
b34976b6 AM |
1537 | defined in dynamic objects but not in regular objects. We |
1538 | only need to consider relocs against external symbols. */ | |
252b5132 RH |
1539 | if (! r_extern) |
1540 | { | |
1541 | /* But, if we are creating a shared library, we need to | |
b34976b6 | 1542 | generate an absolute reloc. */ |
252b5132 RH |
1543 | if (info->shared) |
1544 | { | |
1545 | if (dynobj == NULL) | |
1546 | { | |
b34976b6 AM |
1547 | if (! sunos_create_dynamic_sections (abfd, info, TRUE)) |
1548 | return FALSE; | |
252b5132 | 1549 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1550 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1551 | sgot = bfd_get_linker_section (dynobj, ".got"); | |
1552 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
252b5132 RH |
1553 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
1554 | } | |
1555 | ||
eea6121a | 1556 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1557 | } |
1558 | ||
1559 | continue; | |
1560 | } | |
1561 | ||
1562 | /* At this point common symbols have already been allocated, so | |
1563 | we don't have to worry about them. We need to consider that | |
1564 | we may have already seen this symbol and marked it undefined; | |
1565 | if the symbol is really undefined, then SUNOS_DEF_DYNAMIC | |
1566 | will be zero. */ | |
1567 | if (h->root.root.type != bfd_link_hash_defined | |
1568 | && h->root.root.type != bfd_link_hash_defweak | |
1569 | && h->root.root.type != bfd_link_hash_undefined) | |
1570 | continue; | |
1571 | ||
1572 | if (r_type != RELOC_JMP_TBL | |
1573 | && ! info->shared | |
1574 | && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1575 | || (h->flags & SUNOS_DEF_REGULAR) != 0)) | |
1576 | continue; | |
1577 | ||
1578 | if (r_type == RELOC_JMP_TBL | |
1579 | && ! info->shared | |
1580 | && (h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
1581 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
1582 | { | |
1583 | /* This symbol is apparently undefined. Don't do anything | |
b34976b6 AM |
1584 | here; just let the relocation routine report an undefined |
1585 | symbol. */ | |
252b5132 RH |
1586 | continue; |
1587 | } | |
1588 | ||
1589 | if (strcmp (h->root.root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0) | |
1590 | continue; | |
1591 | ||
1592 | if (dynobj == NULL) | |
1593 | { | |
b34976b6 AM |
1594 | if (! sunos_create_dynamic_sections (abfd, info, FALSE)) |
1595 | return FALSE; | |
252b5132 | 1596 | dynobj = sunos_hash_table (info)->dynobj; |
87e0a731 AM |
1597 | splt = bfd_get_linker_section (dynobj, ".plt"); |
1598 | sgot = bfd_get_linker_section (dynobj, ".got"); | |
1599 | srel = bfd_get_linker_section (dynobj, ".dynrel"); | |
252b5132 RH |
1600 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
1601 | ||
1602 | /* Make sure we have an initial entry in the .got table. */ | |
eea6121a AM |
1603 | if (sgot->size == 0) |
1604 | sgot->size = BYTES_IN_WORD; | |
b34976b6 | 1605 | sunos_hash_table (info)->got_needed = TRUE; |
252b5132 RH |
1606 | } |
1607 | ||
1608 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1609 | || info->shared | |
1610 | || (h->flags & SUNOS_REF_REGULAR) != 0); | |
1611 | BFD_ASSERT (r_type == RELOC_JMP_TBL | |
1612 | || info->shared | |
1613 | || h->plt_offset != 0 | |
1614 | || ((h->root.root.type == bfd_link_hash_defined | |
1615 | || h->root.root.type == bfd_link_hash_defweak) | |
1616 | ? (h->root.root.u.def.section->owner->flags | |
1617 | & DYNAMIC) != 0 | |
1618 | : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0)); | |
1619 | ||
1620 | /* This reloc is against a symbol defined only by a dynamic | |
1621 | object, or it is a jump table reloc from PIC compiled code. */ | |
1622 | ||
1623 | if (r_type != RELOC_JMP_TBL | |
1624 | && h->root.root.type == bfd_link_hash_undefined) | |
116c20d2 NC |
1625 | /* Presumably this symbol was marked as being undefined by |
1626 | an earlier reloc. */ | |
1627 | srel->size += RELOC_EXT_SIZE; | |
1628 | ||
252b5132 RH |
1629 | else if (r_type != RELOC_JMP_TBL |
1630 | && (h->root.root.u.def.section->flags & SEC_CODE) == 0) | |
1631 | { | |
1632 | bfd *sub; | |
1633 | ||
1634 | /* This reloc is not in the .text section. It must be | |
1635 | copied into the dynamic relocs. We mark the symbol as | |
1636 | being undefined. */ | |
eea6121a | 1637 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1638 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) |
1639 | { | |
1640 | sub = h->root.root.u.def.section->owner; | |
1641 | h->root.root.type = bfd_link_hash_undefined; | |
1642 | h->root.root.u.undef.abfd = sub; | |
1643 | } | |
1644 | } | |
1645 | else | |
1646 | { | |
1647 | /* This symbol is in the .text section. We must give it an | |
1648 | entry in the procedure linkage table, if we have not | |
1649 | already done so. We change the definition of the symbol | |
1650 | to the .plt section; this will cause relocs against it to | |
1651 | be handled correctly. */ | |
1652 | if (h->plt_offset == 0) | |
1653 | { | |
eea6121a AM |
1654 | if (splt->size == 0) |
1655 | splt->size = SPARC_PLT_ENTRY_SIZE; | |
1656 | h->plt_offset = splt->size; | |
252b5132 RH |
1657 | |
1658 | if ((h->flags & SUNOS_DEF_REGULAR) == 0) | |
1659 | { | |
1660 | if (h->root.root.type == bfd_link_hash_undefined) | |
1661 | h->root.root.type = bfd_link_hash_defined; | |
1662 | h->root.root.u.def.section = splt; | |
eea6121a | 1663 | h->root.root.u.def.value = splt->size; |
252b5132 RH |
1664 | } |
1665 | ||
eea6121a | 1666 | splt->size += SPARC_PLT_ENTRY_SIZE; |
252b5132 RH |
1667 | |
1668 | /* We will also need a dynamic reloc entry, unless this | |
b34976b6 AM |
1669 | is a JMP_TBL reloc produced by linking PIC compiled |
1670 | code, and we are not making a shared library. */ | |
252b5132 | 1671 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) |
eea6121a | 1672 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1673 | } |
1674 | ||
1675 | /* If we are creating a shared library, we need to copy over | |
b34976b6 | 1676 | any reloc other than a jump table reloc. */ |
252b5132 | 1677 | if (info->shared && r_type != RELOC_JMP_TBL) |
eea6121a | 1678 | srel->size += RELOC_EXT_SIZE; |
252b5132 RH |
1679 | } |
1680 | } | |
1681 | ||
b34976b6 | 1682 | return TRUE; |
252b5132 RH |
1683 | } |
1684 | ||
116c20d2 NC |
1685 | /* Scan the relocs for an input section. */ |
1686 | ||
1687 | static bfd_boolean | |
1688 | sunos_scan_relocs (struct bfd_link_info *info, | |
1689 | bfd *abfd, | |
1690 | asection *sec, | |
1691 | bfd_size_type rel_size) | |
1692 | { | |
1693 | void * relocs; | |
1694 | void * free_relocs = NULL; | |
1695 | ||
1696 | if (rel_size == 0) | |
1697 | return TRUE; | |
1698 | ||
1699 | if (! info->keep_memory) | |
1700 | relocs = free_relocs = bfd_malloc (rel_size); | |
1701 | else | |
1702 | { | |
1703 | struct aout_section_data_struct *n; | |
1704 | bfd_size_type amt = sizeof (struct aout_section_data_struct); | |
1705 | ||
1706 | n = bfd_alloc (abfd, amt); | |
1707 | if (n == NULL) | |
1708 | relocs = NULL; | |
1709 | else | |
1710 | { | |
1711 | set_aout_section_data (sec, n); | |
1712 | relocs = bfd_malloc (rel_size); | |
1713 | aout_section_data (sec)->relocs = relocs; | |
1714 | } | |
1715 | } | |
1716 | if (relocs == NULL) | |
1717 | return FALSE; | |
1718 | ||
1719 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
1720 | || bfd_bread (relocs, rel_size, abfd) != rel_size) | |
1721 | goto error_return; | |
1722 | ||
1723 | if (obj_reloc_entry_size (abfd) == RELOC_STD_SIZE) | |
1724 | { | |
1725 | if (! sunos_scan_std_relocs (info, abfd, sec, | |
1726 | (struct reloc_std_external *) relocs, | |
1727 | rel_size)) | |
1728 | goto error_return; | |
1729 | } | |
1730 | else | |
1731 | { | |
1732 | if (! sunos_scan_ext_relocs (info, abfd, sec, | |
1733 | (struct reloc_ext_external *) relocs, | |
1734 | rel_size)) | |
1735 | goto error_return; | |
1736 | } | |
1737 | ||
1738 | if (free_relocs != NULL) | |
1739 | free (free_relocs); | |
1740 | ||
1741 | return TRUE; | |
1742 | ||
1743 | error_return: | |
1744 | if (free_relocs != NULL) | |
1745 | free (free_relocs); | |
1746 | return FALSE; | |
1747 | } | |
1748 | ||
252b5132 RH |
1749 | /* Build the hash table of dynamic symbols, and to mark as written all |
1750 | symbols from dynamic objects which we do not plan to write out. */ | |
1751 | ||
b34976b6 | 1752 | static bfd_boolean |
116c20d2 | 1753 | sunos_scan_dynamic_symbol (struct sunos_link_hash_entry *h, void * data) |
252b5132 RH |
1754 | { |
1755 | struct bfd_link_info *info = (struct bfd_link_info *) data; | |
1756 | ||
1757 | /* Set the written flag for symbols we do not want to write out as | |
1758 | part of the regular symbol table. This is all symbols which are | |
1759 | not defined in a regular object file. For some reason symbols | |
1760 | which are referenced by a regular object and defined by a dynamic | |
1761 | object do not seem to show up in the regular symbol table. It is | |
1762 | possible for a symbol to have only SUNOS_REF_REGULAR set here, it | |
1763 | is an undefined symbol which was turned into a common symbol | |
1764 | because it was found in an archive object which was not included | |
1765 | in the link. */ | |
1766 | if ((h->flags & SUNOS_DEF_REGULAR) == 0 | |
1767 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1768 | && strcmp (h->root.root.root.string, "__DYNAMIC") != 0) | |
b34976b6 | 1769 | h->root.written = TRUE; |
252b5132 RH |
1770 | |
1771 | /* If this symbol is defined by a dynamic object and referenced by a | |
1772 | regular object, see whether we gave it a reasonable value while | |
1773 | scanning the relocs. */ | |
252b5132 RH |
1774 | if ((h->flags & SUNOS_DEF_REGULAR) == 0 |
1775 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
1776 | && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1777 | { | |
1778 | if ((h->root.root.type == bfd_link_hash_defined | |
1779 | || h->root.root.type == bfd_link_hash_defweak) | |
1780 | && ((h->root.root.u.def.section->owner->flags & DYNAMIC) != 0) | |
1781 | && h->root.root.u.def.section->output_section == NULL) | |
1782 | { | |
1783 | bfd *sub; | |
1784 | ||
1785 | /* This symbol is currently defined in a dynamic section | |
1786 | which is not being put into the output file. This | |
1787 | implies that there is no reloc against the symbol. I'm | |
1788 | not sure why this case would ever occur. In any case, we | |
1789 | change the symbol to be undefined. */ | |
1790 | sub = h->root.root.u.def.section->owner; | |
1791 | h->root.root.type = bfd_link_hash_undefined; | |
1792 | h->root.root.u.undef.abfd = sub; | |
1793 | } | |
1794 | } | |
1795 | ||
1796 | /* If this symbol is defined or referenced by a regular file, add it | |
1797 | to the dynamic symbols. */ | |
1798 | if ((h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0) | |
1799 | { | |
1800 | asection *s; | |
1801 | size_t len; | |
1802 | bfd_byte *contents; | |
1803 | unsigned char *name; | |
1804 | unsigned long hash; | |
1805 | bfd *dynobj; | |
1806 | ||
1807 | BFD_ASSERT (h->dynindx == -2); | |
1808 | ||
1809 | dynobj = sunos_hash_table (info)->dynobj; | |
1810 | ||
1811 | h->dynindx = sunos_hash_table (info)->dynsymcount; | |
1812 | ++sunos_hash_table (info)->dynsymcount; | |
1813 | ||
1814 | len = strlen (h->root.root.root.string); | |
1815 | ||
1816 | /* We don't bother to construct a BFD hash table for the strings | |
1817 | which are the names of the dynamic symbols. Using a hash | |
1818 | table for the regular symbols is beneficial, because the | |
1819 | regular symbols includes the debugging symbols, which have | |
1820 | long names and are often duplicated in several object files. | |
1821 | There are no debugging symbols in the dynamic symbols. */ | |
87e0a731 | 1822 | s = bfd_get_linker_section (dynobj, ".dynstr"); |
252b5132 | 1823 | BFD_ASSERT (s != NULL); |
116c20d2 | 1824 | contents = bfd_realloc (s->contents, s->size + len + 1); |
252b5132 | 1825 | if (contents == NULL) |
b34976b6 | 1826 | return FALSE; |
252b5132 RH |
1827 | s->contents = contents; |
1828 | ||
eea6121a AM |
1829 | h->dynstr_index = s->size; |
1830 | strcpy ((char *) contents + s->size, h->root.root.root.string); | |
1831 | s->size += len + 1; | |
252b5132 RH |
1832 | |
1833 | /* Add it to the dynamic hash table. */ | |
1834 | name = (unsigned char *) h->root.root.root.string; | |
1835 | hash = 0; | |
1836 | while (*name != '\0') | |
1837 | hash = (hash << 1) + *name++; | |
1838 | hash &= 0x7fffffff; | |
1839 | hash %= sunos_hash_table (info)->bucketcount; | |
1840 | ||
87e0a731 | 1841 | s = bfd_get_linker_section (dynobj, ".hash"); |
252b5132 RH |
1842 | BFD_ASSERT (s != NULL); |
1843 | ||
1844 | if (GET_SWORD (dynobj, s->contents + hash * HASH_ENTRY_SIZE) == -1) | |
1845 | PUT_WORD (dynobj, h->dynindx, s->contents + hash * HASH_ENTRY_SIZE); | |
1846 | else | |
1847 | { | |
1848 | bfd_vma next; | |
1849 | ||
1850 | next = GET_WORD (dynobj, | |
1851 | (s->contents | |
1852 | + hash * HASH_ENTRY_SIZE | |
1853 | + BYTES_IN_WORD)); | |
eea6121a | 1854 | PUT_WORD (dynobj, s->size / HASH_ENTRY_SIZE, |
252b5132 | 1855 | s->contents + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD); |
eea6121a AM |
1856 | PUT_WORD (dynobj, h->dynindx, s->contents + s->size); |
1857 | PUT_WORD (dynobj, next, s->contents + s->size + BYTES_IN_WORD); | |
1858 | s->size += HASH_ENTRY_SIZE; | |
252b5132 RH |
1859 | } |
1860 | } | |
1861 | ||
b34976b6 | 1862 | return TRUE; |
252b5132 RH |
1863 | } |
1864 | ||
116c20d2 NC |
1865 | /* Set up the sizes and contents of the dynamic sections created in |
1866 | sunos_add_dynamic_symbols. This is called by the SunOS linker | |
1867 | emulation before_allocation routine. We must set the sizes of the | |
1868 | sections before the linker sets the addresses of the various | |
1869 | sections. This unfortunately requires reading all the relocs so | |
1870 | that we can work out which ones need to become dynamic relocs. If | |
1871 | info->keep_memory is TRUE, we keep the relocs in memory; otherwise, | |
1872 | we discard them, and will read them again later. */ | |
1873 | ||
1874 | bfd_boolean | |
1875 | bfd_sunos_size_dynamic_sections (bfd *output_bfd, | |
1876 | struct bfd_link_info *info, | |
1877 | asection **sdynptr, | |
1878 | asection **sneedptr, | |
1879 | asection **srulesptr) | |
1880 | { | |
1881 | bfd *dynobj; | |
1882 | bfd_size_type dynsymcount; | |
1883 | struct sunos_link_hash_entry *h; | |
1884 | asection *s; | |
1885 | size_t bucketcount; | |
1886 | bfd_size_type hashalloc; | |
1887 | size_t i; | |
1888 | bfd *sub; | |
1889 | ||
1890 | *sdynptr = NULL; | |
1891 | *sneedptr = NULL; | |
1892 | *srulesptr = NULL; | |
1893 | ||
1894 | if (info->relocatable) | |
1895 | return TRUE; | |
1896 | ||
1897 | if (output_bfd->xvec != &MY(vec)) | |
1898 | return TRUE; | |
1899 | ||
1900 | /* Look through all the input BFD's and read their relocs. It would | |
1901 | be better if we didn't have to do this, but there is no other way | |
1902 | to determine the number of dynamic relocs we need, and, more | |
1903 | importantly, there is no other way to know which symbols should | |
1904 | get an entry in the procedure linkage table. */ | |
1905 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
1906 | { | |
1907 | if ((sub->flags & DYNAMIC) == 0 | |
1908 | && sub->xvec == output_bfd->xvec) | |
1909 | { | |
1910 | if (! sunos_scan_relocs (info, sub, obj_textsec (sub), | |
1911 | exec_hdr (sub)->a_trsize) | |
1912 | || ! sunos_scan_relocs (info, sub, obj_datasec (sub), | |
1913 | exec_hdr (sub)->a_drsize)) | |
1914 | return FALSE; | |
1915 | } | |
1916 | } | |
1917 | ||
1918 | dynobj = sunos_hash_table (info)->dynobj; | |
1919 | dynsymcount = sunos_hash_table (info)->dynsymcount; | |
1920 | ||
1921 | /* If there were no dynamic objects in the link, and we don't need | |
1922 | to build a global offset table, there is nothing to do here. */ | |
1923 | if (! sunos_hash_table (info)->dynamic_sections_needed | |
1924 | && ! sunos_hash_table (info)->got_needed) | |
1925 | return TRUE; | |
1926 | ||
1927 | /* If __GLOBAL_OFFSET_TABLE_ was mentioned, define it. */ | |
1928 | h = sunos_link_hash_lookup (sunos_hash_table (info), | |
1929 | "__GLOBAL_OFFSET_TABLE_", FALSE, FALSE, FALSE); | |
1930 | if (h != NULL && (h->flags & SUNOS_REF_REGULAR) != 0) | |
1931 | { | |
1932 | h->flags |= SUNOS_DEF_REGULAR; | |
1933 | if (h->dynindx == -1) | |
1934 | { | |
1935 | ++sunos_hash_table (info)->dynsymcount; | |
1936 | h->dynindx = -2; | |
1937 | } | |
87e0a731 AM |
1938 | s = bfd_get_linker_section (dynobj, ".got"); |
1939 | BFD_ASSERT (s != NULL); | |
116c20d2 | 1940 | h->root.root.type = bfd_link_hash_defined; |
87e0a731 | 1941 | h->root.root.u.def.section = s; |
116c20d2 NC |
1942 | |
1943 | /* If the .got section is more than 0x1000 bytes, we set | |
1944 | __GLOBAL_OFFSET_TABLE_ to be 0x1000 bytes into the section, | |
1945 | so that 13 bit relocations have a greater chance of working. */ | |
116c20d2 NC |
1946 | if (s->size >= 0x1000) |
1947 | h->root.root.u.def.value = 0x1000; | |
1948 | else | |
1949 | h->root.root.u.def.value = 0; | |
1950 | ||
1951 | sunos_hash_table (info)->got_base = h->root.root.u.def.value; | |
1952 | } | |
1953 | ||
1954 | /* If there are any shared objects in the link, then we need to set | |
1955 | up the dynamic linking information. */ | |
1956 | if (sunos_hash_table (info)->dynamic_sections_needed) | |
1957 | { | |
87e0a731 | 1958 | *sdynptr = bfd_get_linker_section (dynobj, ".dynamic"); |
116c20d2 NC |
1959 | |
1960 | /* The .dynamic section is always the same size. */ | |
1961 | s = *sdynptr; | |
1962 | BFD_ASSERT (s != NULL); | |
1963 | s->size = (sizeof (struct external_sun4_dynamic) | |
1964 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE | |
1965 | + sizeof (struct external_sun4_dynamic_link)); | |
1966 | ||
1967 | /* Set the size of the .dynsym and .hash sections. We counted | |
1968 | the number of dynamic symbols as we read the input files. We | |
1969 | will build the dynamic symbol table (.dynsym) and the hash | |
1970 | table (.hash) when we build the final symbol table, because | |
1971 | until then we do not know the correct value to give the | |
1972 | symbols. We build the dynamic symbol string table (.dynstr) | |
1973 | in a traversal of the symbol table using | |
1974 | sunos_scan_dynamic_symbol. */ | |
87e0a731 | 1975 | s = bfd_get_linker_section (dynobj, ".dynsym"); |
116c20d2 NC |
1976 | BFD_ASSERT (s != NULL); |
1977 | s->size = dynsymcount * sizeof (struct external_nlist); | |
1978 | s->contents = bfd_alloc (output_bfd, s->size); | |
1979 | if (s->contents == NULL && s->size != 0) | |
1980 | return FALSE; | |
1981 | ||
1982 | /* The number of buckets is just the number of symbols divided | |
1983 | by four. To compute the final size of the hash table, we | |
1984 | must actually compute the hash table. Normally we need | |
1985 | exactly as many entries in the hash table as there are | |
1986 | dynamic symbols, but if some of the buckets are not used we | |
1987 | will need additional entries. In the worst case, every | |
1988 | symbol will hash to the same bucket, and we will need | |
1989 | BUCKETCOUNT - 1 extra entries. */ | |
1990 | if (dynsymcount >= 4) | |
1991 | bucketcount = dynsymcount / 4; | |
1992 | else if (dynsymcount > 0) | |
1993 | bucketcount = dynsymcount; | |
1994 | else | |
1995 | bucketcount = 1; | |
87e0a731 | 1996 | s = bfd_get_linker_section (dynobj, ".hash"); |
116c20d2 NC |
1997 | BFD_ASSERT (s != NULL); |
1998 | hashalloc = (dynsymcount + bucketcount - 1) * HASH_ENTRY_SIZE; | |
1999 | s->contents = bfd_zalloc (dynobj, hashalloc); | |
2000 | if (s->contents == NULL && dynsymcount > 0) | |
2001 | return FALSE; | |
2002 | for (i = 0; i < bucketcount; i++) | |
2003 | PUT_WORD (output_bfd, (bfd_vma) -1, s->contents + i * HASH_ENTRY_SIZE); | |
2004 | s->size = bucketcount * HASH_ENTRY_SIZE; | |
2005 | ||
2006 | sunos_hash_table (info)->bucketcount = bucketcount; | |
2007 | ||
2008 | /* Scan all the symbols, place them in the dynamic symbol table, | |
2009 | and build the dynamic hash table. We reuse dynsymcount as a | |
2010 | counter for the number of symbols we have added so far. */ | |
2011 | sunos_hash_table (info)->dynsymcount = 0; | |
2012 | sunos_link_hash_traverse (sunos_hash_table (info), | |
2013 | sunos_scan_dynamic_symbol, | |
2014 | (void *) info); | |
2015 | BFD_ASSERT (sunos_hash_table (info)->dynsymcount == dynsymcount); | |
2016 | ||
2017 | /* The SunOS native linker seems to align the total size of the | |
2018 | symbol strings to a multiple of 8. I don't know if this is | |
2019 | important, but it can't hurt much. */ | |
87e0a731 | 2020 | s = bfd_get_linker_section (dynobj, ".dynstr"); |
116c20d2 NC |
2021 | BFD_ASSERT (s != NULL); |
2022 | if ((s->size & 7) != 0) | |
2023 | { | |
2024 | bfd_size_type add; | |
2025 | bfd_byte *contents; | |
2026 | ||
2027 | add = 8 - (s->size & 7); | |
2028 | contents = bfd_realloc (s->contents, s->size + add); | |
2029 | if (contents == NULL) | |
2030 | return FALSE; | |
2031 | memset (contents + s->size, 0, (size_t) add); | |
2032 | s->contents = contents; | |
2033 | s->size += add; | |
2034 | } | |
2035 | } | |
2036 | ||
2037 | /* Now that we have worked out the sizes of the procedure linkage | |
2038 | table and the dynamic relocs, allocate storage for them. */ | |
87e0a731 | 2039 | s = bfd_get_linker_section (dynobj, ".plt"); |
116c20d2 NC |
2040 | BFD_ASSERT (s != NULL); |
2041 | if (s->size != 0) | |
2042 | { | |
2043 | s->contents = bfd_alloc (dynobj, s->size); | |
2044 | if (s->contents == NULL) | |
2045 | return FALSE; | |
2046 | ||
2047 | /* Fill in the first entry in the table. */ | |
2048 | switch (bfd_get_arch (dynobj)) | |
2049 | { | |
2050 | case bfd_arch_sparc: | |
2051 | memcpy (s->contents, sparc_plt_first_entry, SPARC_PLT_ENTRY_SIZE); | |
2052 | break; | |
2053 | ||
2054 | case bfd_arch_m68k: | |
2055 | memcpy (s->contents, m68k_plt_first_entry, M68K_PLT_ENTRY_SIZE); | |
2056 | break; | |
2057 | ||
2058 | default: | |
2059 | abort (); | |
2060 | } | |
2061 | } | |
2062 | ||
87e0a731 | 2063 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
116c20d2 NC |
2064 | if (s->size != 0) |
2065 | { | |
2066 | s->contents = bfd_alloc (dynobj, s->size); | |
2067 | if (s->contents == NULL) | |
2068 | return FALSE; | |
2069 | } | |
2070 | /* We use the reloc_count field to keep track of how many of the | |
2071 | relocs we have output so far. */ | |
2072 | s->reloc_count = 0; | |
2073 | ||
2074 | /* Make space for the global offset table. */ | |
87e0a731 | 2075 | s = bfd_get_linker_section (dynobj, ".got"); |
116c20d2 NC |
2076 | s->contents = bfd_alloc (dynobj, s->size); |
2077 | if (s->contents == NULL) | |
2078 | return FALSE; | |
2079 | ||
2080 | *sneedptr = bfd_get_section_by_name (dynobj, ".need"); | |
2081 | *srulesptr = bfd_get_section_by_name (dynobj, ".rules"); | |
2082 | ||
2083 | return TRUE; | |
2084 | } | |
2085 | ||
252b5132 RH |
2086 | /* Link a dynamic object. We actually don't have anything to do at |
2087 | this point. This entry point exists to prevent the regular linker | |
2088 | code from doing anything with the object. */ | |
2089 | ||
b34976b6 | 2090 | static bfd_boolean |
116c20d2 NC |
2091 | sunos_link_dynamic_object (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2092 | bfd *abfd ATTRIBUTE_UNUSED) | |
252b5132 | 2093 | { |
b34976b6 | 2094 | return TRUE; |
252b5132 RH |
2095 | } |
2096 | ||
2097 | /* Write out a dynamic symbol. This is called by the final traversal | |
2098 | over the symbol table. */ | |
2099 | ||
b34976b6 | 2100 | static bfd_boolean |
116c20d2 NC |
2101 | sunos_write_dynamic_symbol (bfd *output_bfd, |
2102 | struct bfd_link_info *info, | |
2103 | struct aout_link_hash_entry *harg) | |
252b5132 RH |
2104 | { |
2105 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
2106 | int type; | |
2107 | bfd_vma val; | |
2108 | asection *s; | |
2109 | struct external_nlist *outsym; | |
2110 | ||
2111 | /* If this symbol is in the procedure linkage table, fill in the | |
2112 | table entry. */ | |
2113 | if (h->plt_offset != 0) | |
2114 | { | |
2115 | bfd *dynobj; | |
2116 | asection *splt; | |
2117 | bfd_byte *p; | |
252b5132 RH |
2118 | bfd_vma r_address; |
2119 | ||
2120 | dynobj = sunos_hash_table (info)->dynobj; | |
87e0a731 | 2121 | splt = bfd_get_linker_section (dynobj, ".plt"); |
252b5132 RH |
2122 | p = splt->contents + h->plt_offset; |
2123 | ||
87e0a731 | 2124 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 RH |
2125 | |
2126 | r_address = (splt->output_section->vma | |
2127 | + splt->output_offset | |
2128 | + h->plt_offset); | |
2129 | ||
2130 | switch (bfd_get_arch (output_bfd)) | |
2131 | { | |
2132 | case bfd_arch_sparc: | |
2133 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) | |
2134 | { | |
2135 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD0, p); | |
2136 | bfd_put_32 (output_bfd, | |
2137 | (SPARC_PLT_ENTRY_WORD1 | |
2138 | + (((- (h->plt_offset + 4) >> 2) | |
2139 | & 0x3fffffff))), | |
2140 | p + 4); | |
2141 | bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD2 + s->reloc_count, | |
2142 | p + 8); | |
2143 | } | |
2144 | else | |
2145 | { | |
252b5132 RH |
2146 | val = (h->root.root.u.def.section->output_section->vma |
2147 | + h->root.root.u.def.section->output_offset | |
2148 | + h->root.root.u.def.value); | |
2149 | bfd_put_32 (output_bfd, | |
2150 | SPARC_PLT_PIC_WORD0 + ((val >> 10) & 0x3fffff), | |
2151 | p); | |
2152 | bfd_put_32 (output_bfd, | |
2153 | SPARC_PLT_PIC_WORD1 + (val & 0x3ff), | |
2154 | p + 4); | |
2155 | bfd_put_32 (output_bfd, SPARC_PLT_PIC_WORD2, p + 8); | |
2156 | } | |
2157 | break; | |
2158 | ||
2159 | case bfd_arch_m68k: | |
2160 | if (! info->shared && (h->flags & SUNOS_DEF_REGULAR) != 0) | |
2161 | abort (); | |
2162 | bfd_put_16 (output_bfd, M68K_PLT_ENTRY_WORD0, p); | |
2163 | bfd_put_32 (output_bfd, (- (h->plt_offset + 2)), p + 2); | |
dc810e39 | 2164 | bfd_put_16 (output_bfd, (bfd_vma) s->reloc_count, p + 6); |
252b5132 RH |
2165 | r_address += 2; |
2166 | break; | |
2167 | ||
2168 | default: | |
2169 | abort (); | |
2170 | } | |
2171 | ||
2172 | /* We also need to add a jump table reloc, unless this is the | |
b34976b6 | 2173 | result of a JMP_TBL reloc from PIC compiled code. */ |
252b5132 RH |
2174 | if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0) |
2175 | { | |
2176 | BFD_ASSERT (h->dynindx >= 0); | |
2177 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2178 | < s->size); |
252b5132 RH |
2179 | p = s->contents + s->reloc_count * obj_reloc_entry_size (output_bfd); |
2180 | if (obj_reloc_entry_size (output_bfd) == RELOC_STD_SIZE) | |
2181 | { | |
2182 | struct reloc_std_external *srel; | |
2183 | ||
2184 | srel = (struct reloc_std_external *) p; | |
2185 | PUT_WORD (output_bfd, r_address, srel->r_address); | |
2186 | if (bfd_header_big_endian (output_bfd)) | |
2187 | { | |
7b82c249 KH |
2188 | srel->r_index[0] = (bfd_byte) (h->dynindx >> 16); |
2189 | srel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
2190 | srel->r_index[2] = (bfd_byte) (h->dynindx); | |
252b5132 RH |
2191 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_BIG |
2192 | | RELOC_STD_BITS_JMPTABLE_BIG); | |
2193 | } | |
2194 | else | |
2195 | { | |
7b82c249 KH |
2196 | srel->r_index[2] = (bfd_byte) (h->dynindx >> 16); |
2197 | srel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2198 | srel->r_index[0] = (bfd_byte)h->dynindx; |
2199 | srel->r_type[0] = (RELOC_STD_BITS_EXTERN_LITTLE | |
2200 | | RELOC_STD_BITS_JMPTABLE_LITTLE); | |
2201 | } | |
2202 | } | |
2203 | else | |
2204 | { | |
2205 | struct reloc_ext_external *erel; | |
2206 | ||
2207 | erel = (struct reloc_ext_external *) p; | |
2208 | PUT_WORD (output_bfd, r_address, erel->r_address); | |
2209 | if (bfd_header_big_endian (output_bfd)) | |
2210 | { | |
7b82c249 KH |
2211 | erel->r_index[0] = (bfd_byte) (h->dynindx >> 16); |
2212 | erel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2213 | erel->r_index[2] = (bfd_byte)h->dynindx; |
2214 | erel->r_type[0] = | |
2215 | (RELOC_EXT_BITS_EXTERN_BIG | |
2216 | | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2217 | } | |
2218 | else | |
2219 | { | |
7b82c249 KH |
2220 | erel->r_index[2] = (bfd_byte) (h->dynindx >> 16); |
2221 | erel->r_index[1] = (bfd_byte) (h->dynindx >> 8); | |
252b5132 RH |
2222 | erel->r_index[0] = (bfd_byte)h->dynindx; |
2223 | erel->r_type[0] = | |
2224 | (RELOC_EXT_BITS_EXTERN_LITTLE | |
2225 | | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2226 | } | |
2227 | PUT_WORD (output_bfd, (bfd_vma) 0, erel->r_addend); | |
2228 | } | |
2229 | ||
2230 | ++s->reloc_count; | |
2231 | } | |
2232 | } | |
2233 | ||
2234 | /* If this is not a dynamic symbol, we don't have to do anything | |
2235 | else. We only check this after handling the PLT entry, because | |
2236 | we can have a PLT entry for a nondynamic symbol when linking PIC | |
2237 | compiled code from a regular object. */ | |
2238 | if (h->dynindx < 0) | |
b34976b6 | 2239 | return TRUE; |
252b5132 RH |
2240 | |
2241 | switch (h->root.root.type) | |
2242 | { | |
2243 | default: | |
2244 | case bfd_link_hash_new: | |
2245 | abort (); | |
2246 | /* Avoid variable not initialized warnings. */ | |
b34976b6 | 2247 | return TRUE; |
252b5132 RH |
2248 | case bfd_link_hash_undefined: |
2249 | type = N_UNDF | N_EXT; | |
2250 | val = 0; | |
2251 | break; | |
2252 | case bfd_link_hash_defined: | |
2253 | case bfd_link_hash_defweak: | |
2254 | { | |
2255 | asection *sec; | |
2256 | asection *output_section; | |
2257 | ||
2258 | sec = h->root.root.u.def.section; | |
2259 | output_section = sec->output_section; | |
2260 | BFD_ASSERT (bfd_is_abs_section (output_section) | |
2261 | || output_section->owner == output_bfd); | |
2262 | if (h->plt_offset != 0 | |
2263 | && (h->flags & SUNOS_DEF_REGULAR) == 0) | |
2264 | { | |
2265 | type = N_UNDF | N_EXT; | |
2266 | val = 0; | |
2267 | } | |
2268 | else | |
2269 | { | |
2270 | if (output_section == obj_textsec (output_bfd)) | |
2271 | type = (h->root.root.type == bfd_link_hash_defined | |
2272 | ? N_TEXT | |
2273 | : N_WEAKT); | |
2274 | else if (output_section == obj_datasec (output_bfd)) | |
2275 | type = (h->root.root.type == bfd_link_hash_defined | |
2276 | ? N_DATA | |
2277 | : N_WEAKD); | |
2278 | else if (output_section == obj_bsssec (output_bfd)) | |
2279 | type = (h->root.root.type == bfd_link_hash_defined | |
2280 | ? N_BSS | |
2281 | : N_WEAKB); | |
2282 | else | |
2283 | type = (h->root.root.type == bfd_link_hash_defined | |
2284 | ? N_ABS | |
2285 | : N_WEAKA); | |
2286 | type |= N_EXT; | |
2287 | val = (h->root.root.u.def.value | |
2288 | + output_section->vma | |
2289 | + sec->output_offset); | |
2290 | } | |
2291 | } | |
2292 | break; | |
2293 | case bfd_link_hash_common: | |
2294 | type = N_UNDF | N_EXT; | |
2295 | val = h->root.root.u.c.size; | |
2296 | break; | |
2297 | case bfd_link_hash_undefweak: | |
2298 | type = N_WEAKU; | |
2299 | val = 0; | |
2300 | break; | |
2301 | case bfd_link_hash_indirect: | |
2302 | case bfd_link_hash_warning: | |
2303 | /* FIXME: Ignore these for now. The circumstances under which | |
2304 | they should be written out are not clear to me. */ | |
b34976b6 | 2305 | return TRUE; |
252b5132 RH |
2306 | } |
2307 | ||
87e0a731 | 2308 | s = bfd_get_linker_section (sunos_hash_table (info)->dynobj, ".dynsym"); |
252b5132 RH |
2309 | BFD_ASSERT (s != NULL); |
2310 | outsym = ((struct external_nlist *) | |
2311 | (s->contents + h->dynindx * EXTERNAL_NLIST_SIZE)); | |
2312 | ||
dc810e39 AM |
2313 | H_PUT_8 (output_bfd, type, outsym->e_type); |
2314 | H_PUT_8 (output_bfd, 0, outsym->e_other); | |
252b5132 RH |
2315 | |
2316 | /* FIXME: The native linker doesn't use 0 for desc. It seems to use | |
2317 | one less than the desc value in the shared library, although that | |
2318 | seems unlikely. */ | |
dc810e39 | 2319 | H_PUT_16 (output_bfd, 0, outsym->e_desc); |
252b5132 RH |
2320 | |
2321 | PUT_WORD (output_bfd, h->dynstr_index, outsym->e_strx); | |
2322 | PUT_WORD (output_bfd, val, outsym->e_value); | |
2323 | ||
b34976b6 | 2324 | return TRUE; |
252b5132 RH |
2325 | } |
2326 | ||
2327 | /* This is called for each reloc against an external symbol. If this | |
2328 | is a reloc which are are going to copy as a dynamic reloc, then | |
2329 | copy it over, and tell the caller to not bother processing this | |
2330 | reloc. */ | |
2331 | ||
b34976b6 | 2332 | static bfd_boolean |
116c20d2 NC |
2333 | sunos_check_dynamic_reloc (struct bfd_link_info *info, |
2334 | bfd *input_bfd, | |
2335 | asection *input_section, | |
2336 | struct aout_link_hash_entry *harg, | |
2337 | void * reloc, | |
2338 | bfd_byte *contents ATTRIBUTE_UNUSED, | |
2339 | bfd_boolean *skip, | |
2340 | bfd_vma *relocationp) | |
252b5132 RH |
2341 | { |
2342 | struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg; | |
2343 | bfd *dynobj; | |
b34976b6 AM |
2344 | bfd_boolean baserel; |
2345 | bfd_boolean jmptbl; | |
2346 | bfd_boolean pcrel; | |
252b5132 RH |
2347 | asection *s; |
2348 | bfd_byte *p; | |
2349 | long indx; | |
2350 | ||
b34976b6 | 2351 | *skip = FALSE; |
252b5132 RH |
2352 | |
2353 | dynobj = sunos_hash_table (info)->dynobj; | |
2354 | ||
2355 | if (h != NULL | |
2356 | && h->plt_offset != 0 | |
2357 | && (info->shared | |
2358 | || (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
2359 | { | |
2360 | asection *splt; | |
2361 | ||
2362 | /* Redirect the relocation to the PLT entry. */ | |
87e0a731 | 2363 | splt = bfd_get_linker_section (dynobj, ".plt"); |
252b5132 RH |
2364 | *relocationp = (splt->output_section->vma |
2365 | + splt->output_offset | |
2366 | + h->plt_offset); | |
2367 | } | |
2368 | ||
2369 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2370 | { | |
2371 | struct reloc_std_external *srel; | |
2372 | ||
2373 | srel = (struct reloc_std_external *) reloc; | |
2374 | if (bfd_header_big_endian (input_bfd)) | |
2375 | { | |
2376 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG)); | |
2377 | jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG)); | |
2378 | pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); | |
2379 | } | |
2380 | else | |
2381 | { | |
2382 | baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE)); | |
2383 | jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE)); | |
2384 | pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); | |
2385 | } | |
2386 | } | |
2387 | else | |
2388 | { | |
2389 | struct reloc_ext_external *erel; | |
2390 | int r_type; | |
2391 | ||
2392 | erel = (struct reloc_ext_external *) reloc; | |
2393 | if (bfd_header_big_endian (input_bfd)) | |
2394 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG) | |
2395 | >> RELOC_EXT_BITS_TYPE_SH_BIG); | |
2396 | else | |
2397 | r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE) | |
2398 | >> RELOC_EXT_BITS_TYPE_SH_LITTLE); | |
2399 | baserel = (r_type == RELOC_BASE10 | |
2400 | || r_type == RELOC_BASE13 | |
2401 | || r_type == RELOC_BASE22); | |
2402 | jmptbl = r_type == RELOC_JMP_TBL; | |
2403 | pcrel = (r_type == RELOC_DISP8 | |
2404 | || r_type == RELOC_DISP16 | |
2405 | || r_type == RELOC_DISP32 | |
2406 | || r_type == RELOC_WDISP30 | |
2407 | || r_type == RELOC_WDISP22); | |
2408 | /* We don't consider the PC10 and PC22 types to be PC relative, | |
b34976b6 | 2409 | because they are pcrel_offset. */ |
252b5132 RH |
2410 | } |
2411 | ||
2412 | if (baserel) | |
2413 | { | |
2414 | bfd_vma *got_offsetp; | |
2415 | asection *sgot; | |
2416 | ||
2417 | if (h != NULL) | |
2418 | got_offsetp = &h->got_offset; | |
2419 | else if (adata (input_bfd).local_got_offsets == NULL) | |
2420 | got_offsetp = NULL; | |
2421 | else | |
2422 | { | |
2423 | struct reloc_std_external *srel; | |
2424 | int r_index; | |
2425 | ||
2426 | srel = (struct reloc_std_external *) reloc; | |
2427 | if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE) | |
2428 | { | |
2429 | if (bfd_header_big_endian (input_bfd)) | |
2430 | r_index = ((srel->r_index[0] << 16) | |
2431 | | (srel->r_index[1] << 8) | |
2432 | | srel->r_index[2]); | |
2433 | else | |
2434 | r_index = ((srel->r_index[2] << 16) | |
2435 | | (srel->r_index[1] << 8) | |
2436 | | srel->r_index[0]); | |
2437 | } | |
2438 | else | |
2439 | { | |
2440 | struct reloc_ext_external *erel; | |
2441 | ||
2442 | erel = (struct reloc_ext_external *) reloc; | |
2443 | if (bfd_header_big_endian (input_bfd)) | |
2444 | r_index = ((erel->r_index[0] << 16) | |
2445 | | (erel->r_index[1] << 8) | |
2446 | | erel->r_index[2]); | |
2447 | else | |
2448 | r_index = ((erel->r_index[2] << 16) | |
2449 | | (erel->r_index[1] << 8) | |
2450 | | erel->r_index[0]); | |
2451 | } | |
2452 | ||
2453 | got_offsetp = adata (input_bfd).local_got_offsets + r_index; | |
2454 | } | |
2455 | ||
2456 | BFD_ASSERT (got_offsetp != NULL && *got_offsetp != 0); | |
2457 | ||
87e0a731 | 2458 | sgot = bfd_get_linker_section (dynobj, ".got"); |
252b5132 RH |
2459 | |
2460 | /* We set the least significant bit to indicate whether we have | |
2461 | already initialized the GOT entry. */ | |
2462 | if ((*got_offsetp & 1) == 0) | |
2463 | { | |
2464 | if (h == NULL | |
2465 | || (! info->shared | |
2466 | && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
2467 | || (h->flags & SUNOS_DEF_REGULAR) != 0))) | |
2468 | PUT_WORD (dynobj, *relocationp, sgot->contents + *got_offsetp); | |
2469 | else | |
2470 | PUT_WORD (dynobj, 0, sgot->contents + *got_offsetp); | |
2471 | ||
2472 | if (info->shared | |
2473 | || (h != NULL | |
2474 | && (h->flags & SUNOS_DEF_DYNAMIC) != 0 | |
2475 | && (h->flags & SUNOS_DEF_REGULAR) == 0)) | |
2476 | { | |
2477 | /* We need to create a GLOB_DAT or 32 reloc to tell the | |
b34976b6 | 2478 | dynamic linker to fill in this entry in the table. */ |
252b5132 | 2479 | |
87e0a731 | 2480 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 RH |
2481 | BFD_ASSERT (s != NULL); |
2482 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2483 | < s->size); |
252b5132 RH |
2484 | |
2485 | p = (s->contents | |
2486 | + s->reloc_count * obj_reloc_entry_size (dynobj)); | |
2487 | ||
2488 | if (h != NULL) | |
2489 | indx = h->dynindx; | |
2490 | else | |
2491 | indx = 0; | |
2492 | ||
2493 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2494 | { | |
2495 | struct reloc_std_external *srel; | |
2496 | ||
2497 | srel = (struct reloc_std_external *) p; | |
2498 | PUT_WORD (dynobj, | |
2499 | (*got_offsetp | |
2500 | + sgot->output_section->vma | |
2501 | + sgot->output_offset), | |
2502 | srel->r_address); | |
2503 | if (bfd_header_big_endian (dynobj)) | |
2504 | { | |
7b82c249 KH |
2505 | srel->r_index[0] = (bfd_byte) (indx >> 16); |
2506 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2507 | srel->r_index[2] = (bfd_byte)indx; |
2508 | if (h == NULL) | |
2509 | srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_BIG; | |
2510 | else | |
2511 | srel->r_type[0] = | |
2512 | (RELOC_STD_BITS_EXTERN_BIG | |
2513 | | RELOC_STD_BITS_BASEREL_BIG | |
2514 | | RELOC_STD_BITS_RELATIVE_BIG | |
2515 | | (2 << RELOC_STD_BITS_LENGTH_SH_BIG)); | |
2516 | } | |
2517 | else | |
2518 | { | |
7b82c249 KH |
2519 | srel->r_index[2] = (bfd_byte) (indx >> 16); |
2520 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2521 | srel->r_index[0] = (bfd_byte)indx; |
2522 | if (h == NULL) | |
2523 | srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_LITTLE; | |
2524 | else | |
2525 | srel->r_type[0] = | |
2526 | (RELOC_STD_BITS_EXTERN_LITTLE | |
2527 | | RELOC_STD_BITS_BASEREL_LITTLE | |
2528 | | RELOC_STD_BITS_RELATIVE_LITTLE | |
2529 | | (2 << RELOC_STD_BITS_LENGTH_SH_LITTLE)); | |
2530 | } | |
2531 | } | |
2532 | else | |
2533 | { | |
2534 | struct reloc_ext_external *erel; | |
2535 | ||
2536 | erel = (struct reloc_ext_external *) p; | |
2537 | PUT_WORD (dynobj, | |
2538 | (*got_offsetp | |
2539 | + sgot->output_section->vma | |
2540 | + sgot->output_offset), | |
2541 | erel->r_address); | |
2542 | if (bfd_header_big_endian (dynobj)) | |
2543 | { | |
7b82c249 KH |
2544 | erel->r_index[0] = (bfd_byte) (indx >> 16); |
2545 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2546 | erel->r_index[2] = (bfd_byte)indx; |
2547 | if (h == NULL) | |
2548 | erel->r_type[0] = | |
2549 | RELOC_32 << RELOC_EXT_BITS_TYPE_SH_BIG; | |
2550 | else | |
2551 | erel->r_type[0] = | |
2552 | (RELOC_EXT_BITS_EXTERN_BIG | |
2553 | | (RELOC_GLOB_DAT << RELOC_EXT_BITS_TYPE_SH_BIG)); | |
2554 | } | |
2555 | else | |
2556 | { | |
7b82c249 KH |
2557 | erel->r_index[2] = (bfd_byte) (indx >> 16); |
2558 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2559 | erel->r_index[0] = (bfd_byte)indx; |
2560 | if (h == NULL) | |
2561 | erel->r_type[0] = | |
2562 | RELOC_32 << RELOC_EXT_BITS_TYPE_SH_LITTLE; | |
2563 | else | |
2564 | erel->r_type[0] = | |
2565 | (RELOC_EXT_BITS_EXTERN_LITTLE | |
2566 | | (RELOC_GLOB_DAT | |
2567 | << RELOC_EXT_BITS_TYPE_SH_LITTLE)); | |
2568 | } | |
2569 | PUT_WORD (dynobj, 0, erel->r_addend); | |
2570 | } | |
2571 | ||
2572 | ++s->reloc_count; | |
2573 | } | |
2574 | ||
2575 | *got_offsetp |= 1; | |
2576 | } | |
2577 | ||
2578 | *relocationp = (sgot->vma | |
dc810e39 | 2579 | + (*got_offsetp &~ (bfd_vma) 1) |
252b5132 RH |
2580 | - sunos_hash_table (info)->got_base); |
2581 | ||
2582 | /* There is nothing else to do for a base relative reloc. */ | |
b34976b6 | 2583 | return TRUE; |
252b5132 RH |
2584 | } |
2585 | ||
2586 | if (! sunos_hash_table (info)->dynamic_sections_needed) | |
b34976b6 | 2587 | return TRUE; |
252b5132 RH |
2588 | if (! info->shared) |
2589 | { | |
2590 | if (h == NULL | |
2591 | || h->dynindx == -1 | |
2592 | || h->root.root.type != bfd_link_hash_undefined | |
2593 | || (h->flags & SUNOS_DEF_REGULAR) != 0 | |
2594 | || (h->flags & SUNOS_DEF_DYNAMIC) == 0 | |
2595 | || (h->root.root.u.undef.abfd->flags & DYNAMIC) == 0) | |
b34976b6 | 2596 | return TRUE; |
252b5132 RH |
2597 | } |
2598 | else | |
2599 | { | |
2600 | if (h != NULL | |
2601 | && (h->dynindx == -1 | |
2602 | || jmptbl | |
2603 | || strcmp (h->root.root.root.string, | |
2604 | "__GLOBAL_OFFSET_TABLE_") == 0)) | |
b34976b6 | 2605 | return TRUE; |
252b5132 RH |
2606 | } |
2607 | ||
2608 | /* It looks like this is a reloc we are supposed to copy. */ | |
2609 | ||
87e0a731 | 2610 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 | 2611 | BFD_ASSERT (s != NULL); |
eea6121a | 2612 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) < s->size); |
252b5132 RH |
2613 | |
2614 | p = s->contents + s->reloc_count * obj_reloc_entry_size (dynobj); | |
2615 | ||
2616 | /* Copy the reloc over. */ | |
2617 | memcpy (p, reloc, obj_reloc_entry_size (dynobj)); | |
2618 | ||
2619 | if (h != NULL) | |
2620 | indx = h->dynindx; | |
2621 | else | |
2622 | indx = 0; | |
2623 | ||
2624 | /* Adjust the address and symbol index. */ | |
2625 | if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE) | |
2626 | { | |
2627 | struct reloc_std_external *srel; | |
2628 | ||
2629 | srel = (struct reloc_std_external *) p; | |
2630 | PUT_WORD (dynobj, | |
2631 | (GET_WORD (dynobj, srel->r_address) | |
2632 | + input_section->output_section->vma | |
2633 | + input_section->output_offset), | |
2634 | srel->r_address); | |
2635 | if (bfd_header_big_endian (dynobj)) | |
2636 | { | |
7b82c249 KH |
2637 | srel->r_index[0] = (bfd_byte) (indx >> 16); |
2638 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2639 | srel->r_index[2] = (bfd_byte)indx; |
2640 | } | |
2641 | else | |
2642 | { | |
7b82c249 KH |
2643 | srel->r_index[2] = (bfd_byte) (indx >> 16); |
2644 | srel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2645 | srel->r_index[0] = (bfd_byte)indx; |
2646 | } | |
2647 | /* FIXME: We may have to change the addend for a PC relative | |
b34976b6 | 2648 | reloc. */ |
252b5132 RH |
2649 | } |
2650 | else | |
2651 | { | |
2652 | struct reloc_ext_external *erel; | |
2653 | ||
2654 | erel = (struct reloc_ext_external *) p; | |
2655 | PUT_WORD (dynobj, | |
2656 | (GET_WORD (dynobj, erel->r_address) | |
2657 | + input_section->output_section->vma | |
2658 | + input_section->output_offset), | |
2659 | erel->r_address); | |
2660 | if (bfd_header_big_endian (dynobj)) | |
2661 | { | |
7b82c249 KH |
2662 | erel->r_index[0] = (bfd_byte) (indx >> 16); |
2663 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2664 | erel->r_index[2] = (bfd_byte)indx; |
2665 | } | |
2666 | else | |
2667 | { | |
7b82c249 KH |
2668 | erel->r_index[2] = (bfd_byte) (indx >> 16); |
2669 | erel->r_index[1] = (bfd_byte) (indx >> 8); | |
252b5132 RH |
2670 | erel->r_index[0] = (bfd_byte)indx; |
2671 | } | |
2672 | if (pcrel && h != NULL) | |
2673 | { | |
2674 | /* Adjust the addend for the change in address. */ | |
2675 | PUT_WORD (dynobj, | |
2676 | (GET_WORD (dynobj, erel->r_addend) | |
2677 | - (input_section->output_section->vma | |
2678 | + input_section->output_offset | |
2679 | - input_section->vma)), | |
2680 | erel->r_addend); | |
2681 | } | |
2682 | } | |
2683 | ||
2684 | ++s->reloc_count; | |
2685 | ||
2686 | if (h != NULL) | |
b34976b6 | 2687 | *skip = TRUE; |
252b5132 | 2688 | |
b34976b6 | 2689 | return TRUE; |
252b5132 RH |
2690 | } |
2691 | ||
2692 | /* Finish up the dynamic linking information. */ | |
2693 | ||
b34976b6 | 2694 | static bfd_boolean |
116c20d2 | 2695 | sunos_finish_dynamic_link (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
2696 | { |
2697 | bfd *dynobj; | |
2698 | asection *o; | |
2699 | asection *s; | |
2700 | asection *sdyn; | |
2701 | ||
2702 | if (! sunos_hash_table (info)->dynamic_sections_needed | |
2703 | && ! sunos_hash_table (info)->got_needed) | |
b34976b6 | 2704 | return TRUE; |
252b5132 RH |
2705 | |
2706 | dynobj = sunos_hash_table (info)->dynobj; | |
2707 | ||
87e0a731 | 2708 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
252b5132 RH |
2709 | BFD_ASSERT (sdyn != NULL); |
2710 | ||
2711 | /* Finish up the .need section. The linker emulation code filled it | |
2712 | in, but with offsets from the start of the section instead of | |
2713 | real addresses. Now that we know the section location, we can | |
2714 | fill in the final values. */ | |
2715 | s = bfd_get_section_by_name (dynobj, ".need"); | |
eea6121a | 2716 | if (s != NULL && s->size != 0) |
252b5132 RH |
2717 | { |
2718 | file_ptr filepos; | |
2719 | bfd_byte *p; | |
2720 | ||
2721 | filepos = s->output_section->filepos + s->output_offset; | |
2722 | p = s->contents; | |
2723 | while (1) | |
2724 | { | |
2725 | bfd_vma val; | |
2726 | ||
2727 | PUT_WORD (dynobj, GET_WORD (dynobj, p) + filepos, p); | |
2728 | val = GET_WORD (dynobj, p + 12); | |
2729 | if (val == 0) | |
2730 | break; | |
2731 | PUT_WORD (dynobj, val + filepos, p + 12); | |
2732 | p += 16; | |
2733 | } | |
2734 | } | |
2735 | ||
2736 | /* The first entry in the .got section is the address of the | |
2737 | dynamic information, unless this is a shared library. */ | |
87e0a731 | 2738 | s = bfd_get_linker_section (dynobj, ".got"); |
252b5132 | 2739 | BFD_ASSERT (s != NULL); |
eea6121a | 2740 | if (info->shared || sdyn->size == 0) |
252b5132 RH |
2741 | PUT_WORD (dynobj, 0, s->contents); |
2742 | else | |
2743 | PUT_WORD (dynobj, sdyn->output_section->vma + sdyn->output_offset, | |
2744 | s->contents); | |
2745 | ||
2746 | for (o = dynobj->sections; o != NULL; o = o->next) | |
2747 | { | |
2748 | if ((o->flags & SEC_HAS_CONTENTS) != 0 | |
2749 | && o->contents != NULL) | |
2750 | { | |
2751 | BFD_ASSERT (o->output_section != NULL | |
2752 | && o->output_section->owner == abfd); | |
2753 | if (! bfd_set_section_contents (abfd, o->output_section, | |
dc810e39 AM |
2754 | o->contents, |
2755 | (file_ptr) o->output_offset, | |
eea6121a | 2756 | o->size)) |
b34976b6 | 2757 | return FALSE; |
252b5132 RH |
2758 | } |
2759 | } | |
2760 | ||
eea6121a | 2761 | if (sdyn->size > 0) |
252b5132 RH |
2762 | { |
2763 | struct external_sun4_dynamic esd; | |
2764 | struct external_sun4_dynamic_link esdl; | |
dc810e39 | 2765 | file_ptr pos; |
252b5132 RH |
2766 | |
2767 | /* Finish up the dynamic link information. */ | |
2768 | PUT_WORD (dynobj, (bfd_vma) 3, esd.ld_version); | |
2769 | PUT_WORD (dynobj, | |
2770 | sdyn->output_section->vma + sdyn->output_offset + sizeof esd, | |
2771 | esd.ldd); | |
2772 | PUT_WORD (dynobj, | |
2773 | (sdyn->output_section->vma | |
2774 | + sdyn->output_offset | |
2775 | + sizeof esd | |
2776 | + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE), | |
2777 | esd.ld); | |
2778 | ||
2779 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esd, | |
dc810e39 AM |
2780 | (file_ptr) sdyn->output_offset, |
2781 | (bfd_size_type) sizeof esd)) | |
b34976b6 | 2782 | return FALSE; |
252b5132 RH |
2783 | |
2784 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_loaded); | |
2785 | ||
2786 | s = bfd_get_section_by_name (dynobj, ".need"); | |
eea6121a | 2787 | if (s == NULL || s->size == 0) |
252b5132 RH |
2788 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_need); |
2789 | else | |
2790 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2791 | esdl.ld_need); | |
2792 | ||
2793 | s = bfd_get_section_by_name (dynobj, ".rules"); | |
eea6121a | 2794 | if (s == NULL || s->size == 0) |
252b5132 RH |
2795 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_rules); |
2796 | else | |
2797 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2798 | esdl.ld_rules); | |
2799 | ||
87e0a731 | 2800 | s = bfd_get_linker_section (dynobj, ".got"); |
252b5132 RH |
2801 | BFD_ASSERT (s != NULL); |
2802 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, | |
2803 | esdl.ld_got); | |
2804 | ||
87e0a731 | 2805 | s = bfd_get_linker_section (dynobj, ".plt"); |
252b5132 RH |
2806 | BFD_ASSERT (s != NULL); |
2807 | PUT_WORD (dynobj, s->output_section->vma + s->output_offset, | |
2808 | esdl.ld_plt); | |
eea6121a | 2809 | PUT_WORD (dynobj, s->size, esdl.ld_plt_sz); |
252b5132 | 2810 | |
87e0a731 | 2811 | s = bfd_get_linker_section (dynobj, ".dynrel"); |
252b5132 RH |
2812 | BFD_ASSERT (s != NULL); |
2813 | BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) | |
eea6121a | 2814 | == s->size); |
252b5132 RH |
2815 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, |
2816 | esdl.ld_rel); | |
2817 | ||
87e0a731 | 2818 | s = bfd_get_linker_section (dynobj, ".hash"); |
252b5132 RH |
2819 | BFD_ASSERT (s != NULL); |
2820 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2821 | esdl.ld_hash); | |
2822 | ||
87e0a731 | 2823 | s = bfd_get_linker_section (dynobj, ".dynsym"); |
252b5132 RH |
2824 | BFD_ASSERT (s != NULL); |
2825 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2826 | esdl.ld_stab); | |
2827 | ||
2828 | PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_stab_hash); | |
2829 | ||
2830 | PUT_WORD (dynobj, (bfd_vma) sunos_hash_table (info)->bucketcount, | |
2831 | esdl.ld_buckets); | |
2832 | ||
87e0a731 | 2833 | s = bfd_get_linker_section (dynobj, ".dynstr"); |
252b5132 RH |
2834 | BFD_ASSERT (s != NULL); |
2835 | PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, | |
2836 | esdl.ld_symbols); | |
eea6121a | 2837 | PUT_WORD (dynobj, s->size, esdl.ld_symb_size); |
252b5132 RH |
2838 | |
2839 | /* The size of the text area is the size of the .text section | |
2840 | rounded up to a page boundary. FIXME: Should the page size be | |
2841 | conditional on something? */ | |
2842 | PUT_WORD (dynobj, | |
eea6121a | 2843 | BFD_ALIGN (obj_textsec (abfd)->size, 0x2000), |
252b5132 | 2844 | esdl.ld_text); |
7b82c249 | 2845 | |
dc810e39 AM |
2846 | pos = sdyn->output_offset; |
2847 | pos += sizeof esd + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE; | |
252b5132 | 2848 | if (! bfd_set_section_contents (abfd, sdyn->output_section, &esdl, |
dc810e39 | 2849 | pos, (bfd_size_type) sizeof esdl)) |
b34976b6 | 2850 | return FALSE; |
252b5132 RH |
2851 | |
2852 | abfd->flags |= DYNAMIC; | |
2853 | } | |
2854 | ||
b34976b6 | 2855 | return TRUE; |
252b5132 | 2856 | } |