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202e2356 | 1 | /* IA-64 support for OpenVMS |
2571583a | 2 | Copyright (C) 1998-2017 Free Software Foundation, Inc. |
202e2356 NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | #include "sysdep.h" | |
22 | #include "bfd.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | #include "opcode/ia64.h" | |
26 | #include "elf/ia64.h" | |
27 | #include "objalloc.h" | |
28 | #include "hashtab.h" | |
29 | #include "elfxx-ia64.h" | |
30 | #include "vms.h" | |
31 | #include "bfdver.h" | |
32 | ||
33 | /* THE RULES for all the stuff the linker creates -- | |
34 | ||
35 | GOT Entries created in response to LTOFF or LTOFF_FPTR | |
36 | relocations. Dynamic relocs created for dynamic | |
37 | symbols in an application; REL relocs for locals | |
38 | in a shared library. | |
39 | ||
40 | FPTR The canonical function descriptor. Created for local | |
41 | symbols in applications. Descriptors for dynamic symbols | |
42 | and local symbols in shared libraries are created by | |
43 | ld.so. Thus there are no dynamic relocs against these | |
44 | objects. The FPTR relocs for such _are_ passed through | |
45 | to the dynamic relocation tables. | |
46 | ||
47 | FULL_PLT Created for a PCREL21B relocation against a dynamic symbol. | |
48 | Requires the creation of a PLTOFF entry. This does not | |
49 | require any dynamic relocations. | |
50 | ||
51 | PLTOFF Created by PLTOFF relocations. For local symbols, this | |
52 | is an alternate function descriptor, and in shared libraries | |
53 | requires two REL relocations. Note that this cannot be | |
54 | transformed into an FPTR relocation, since it must be in | |
55 | range of the GP. For dynamic symbols, this is a function | |
56 | descriptor. */ | |
57 | ||
58 | typedef struct bfd_hash_entry *(*new_hash_entry_func) | |
59 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); | |
60 | ||
61 | /* In dynamically (linker-) created sections, we generally need to keep track | |
62 | of the place a symbol or expression got allocated to. This is done via hash | |
63 | tables that store entries of the following type. */ | |
64 | ||
65 | struct elf64_ia64_dyn_sym_info | |
66 | { | |
67 | /* The addend for which this entry is relevant. */ | |
68 | bfd_vma addend; | |
69 | ||
70 | bfd_vma got_offset; | |
71 | bfd_vma fptr_offset; | |
72 | bfd_vma pltoff_offset; | |
73 | bfd_vma plt_offset; | |
74 | bfd_vma plt2_offset; | |
75 | ||
76 | /* The symbol table entry, if any, that this was derived from. */ | |
77 | struct elf_link_hash_entry *h; | |
78 | ||
79 | /* Used to count non-got, non-plt relocations for delayed sizing | |
80 | of relocation sections. */ | |
81 | struct elf64_ia64_dyn_reloc_entry | |
82 | { | |
83 | struct elf64_ia64_dyn_reloc_entry *next; | |
84 | asection *srel; | |
85 | int type; | |
86 | int count; | |
87 | } *reloc_entries; | |
88 | ||
89 | /* TRUE when the section contents have been updated. */ | |
90 | unsigned got_done : 1; | |
91 | unsigned fptr_done : 1; | |
92 | unsigned pltoff_done : 1; | |
93 | ||
94 | /* TRUE for the different kinds of linker data we want created. */ | |
95 | unsigned want_got : 1; | |
96 | unsigned want_gotx : 1; | |
97 | unsigned want_fptr : 1; | |
98 | unsigned want_ltoff_fptr : 1; | |
99 | unsigned want_plt : 1; /* A MIN_PLT entry. */ | |
100 | unsigned want_plt2 : 1; /* A FULL_PLT. */ | |
101 | unsigned want_pltoff : 1; | |
102 | }; | |
103 | ||
104 | struct elf64_ia64_local_hash_entry | |
105 | { | |
106 | int id; | |
107 | unsigned int r_sym; | |
108 | /* The number of elements in elf64_ia64_dyn_sym_info array. */ | |
109 | unsigned int count; | |
110 | /* The number of sorted elements in elf64_ia64_dyn_sym_info array. */ | |
111 | unsigned int sorted_count; | |
112 | /* The size of elf64_ia64_dyn_sym_info array. */ | |
113 | unsigned int size; | |
114 | /* The array of elf64_ia64_dyn_sym_info. */ | |
115 | struct elf64_ia64_dyn_sym_info *info; | |
116 | ||
117 | /* TRUE if this hash entry's addends was translated for | |
118 | SHF_MERGE optimization. */ | |
119 | unsigned sec_merge_done : 1; | |
120 | }; | |
121 | ||
122 | struct elf64_ia64_link_hash_entry | |
123 | { | |
124 | struct elf_link_hash_entry root; | |
125 | ||
126 | /* Set if this symbol is defined in a shared library. | |
127 | We can't use root.u.def.section->owner as the symbol is an absolute | |
128 | symbol. */ | |
129 | bfd *shl; | |
130 | ||
131 | /* The number of elements in elf64_ia64_dyn_sym_info array. */ | |
132 | unsigned int count; | |
133 | /* The number of sorted elements in elf64_ia64_dyn_sym_info array. */ | |
134 | unsigned int sorted_count; | |
135 | /* The size of elf64_ia64_dyn_sym_info array. */ | |
136 | unsigned int size; | |
137 | /* The array of elf64_ia64_dyn_sym_info. */ | |
138 | struct elf64_ia64_dyn_sym_info *info; | |
139 | }; | |
140 | ||
141 | struct elf64_ia64_link_hash_table | |
142 | { | |
143 | /* The main hash table. */ | |
144 | struct elf_link_hash_table root; | |
145 | ||
146 | asection *fptr_sec; /* Function descriptor table (or NULL). */ | |
147 | asection *rel_fptr_sec; /* Dynamic relocation section for same. */ | |
148 | asection *pltoff_sec; /* Private descriptors for plt (or NULL). */ | |
149 | asection *fixups_sec; /* Fixups section. */ | |
150 | asection *transfer_sec; /* Transfer vector section. */ | |
151 | asection *note_sec; /* .note section. */ | |
152 | ||
153 | /* There are maybe R_IA64_GPREL22 relocations, including those | |
154 | optimized from R_IA64_LTOFF22X, against non-SHF_IA_64_SHORT | |
155 | sections. We need to record those sections so that we can choose | |
156 | a proper GP to cover all R_IA64_GPREL22 relocations. */ | |
157 | asection *max_short_sec; /* Maximum short output section. */ | |
158 | bfd_vma max_short_offset; /* Maximum short offset. */ | |
159 | asection *min_short_sec; /* Minimum short output section. */ | |
160 | bfd_vma min_short_offset; /* Minimum short offset. */ | |
161 | ||
162 | htab_t loc_hash_table; | |
163 | void *loc_hash_memory; | |
164 | }; | |
165 | ||
166 | struct elf64_ia64_allocate_data | |
167 | { | |
168 | struct bfd_link_info *info; | |
169 | bfd_size_type ofs; | |
170 | }; | |
171 | ||
172 | #define elf64_ia64_hash_table(p) \ | |
173 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ | |
174 | == IA64_ELF_DATA ? ((struct elf64_ia64_link_hash_table *) ((p)->hash)) : NULL) | |
175 | ||
176 | struct elf64_ia64_vms_obj_tdata | |
177 | { | |
178 | struct elf_obj_tdata root; | |
179 | ||
180 | /* Ident for shared library. */ | |
181 | bfd_uint64_t ident; | |
182 | ||
183 | /* Used only during link: offset in the .fixups section for this bfd. */ | |
184 | bfd_vma fixups_off; | |
185 | ||
186 | /* Max number of shared libraries. */ | |
187 | unsigned int needed_count; | |
188 | }; | |
189 | ||
190 | #define elf_ia64_vms_tdata(abfd) \ | |
191 | ((struct elf64_ia64_vms_obj_tdata *)((abfd)->tdata.any)) | |
192 | #define elf_ia64_vms_ident(abfd) (elf_ia64_vms_tdata(abfd)->ident) | |
193 | ||
194 | struct elf64_vms_transfer | |
195 | { | |
196 | unsigned char size[4]; | |
197 | unsigned char spare[4]; | |
198 | unsigned char tfradr1[8]; | |
199 | unsigned char tfradr2[8]; | |
200 | unsigned char tfradr3[8]; | |
201 | unsigned char tfradr4[8]; | |
202 | unsigned char tfradr5[8]; | |
203 | ||
204 | /* Local function descriptor for tfr3. */ | |
205 | unsigned char tfr3_func[8]; | |
206 | unsigned char tfr3_gp[8]; | |
207 | }; | |
208 | ||
209 | typedef struct | |
210 | { | |
211 | Elf64_External_Ehdr ehdr; | |
212 | unsigned char vms_needed_count[8]; | |
213 | } Elf64_External_VMS_Ehdr; | |
214 | ||
215 | static struct elf64_ia64_dyn_sym_info * get_dyn_sym_info | |
216 | (struct elf64_ia64_link_hash_table *, | |
217 | struct elf_link_hash_entry *, | |
218 | bfd *, const Elf_Internal_Rela *, bfd_boolean); | |
219 | static bfd_boolean elf64_ia64_dynamic_symbol_p | |
220 | (struct elf_link_hash_entry *); | |
221 | static bfd_boolean elf64_ia64_choose_gp | |
222 | (bfd *, struct bfd_link_info *, bfd_boolean); | |
223 | static void elf64_ia64_dyn_sym_traverse | |
224 | (struct elf64_ia64_link_hash_table *, | |
225 | bfd_boolean (*) (struct elf64_ia64_dyn_sym_info *, void *), | |
226 | void *); | |
227 | static bfd_boolean allocate_global_data_got | |
228 | (struct elf64_ia64_dyn_sym_info *, void *); | |
229 | static bfd_boolean allocate_global_fptr_got | |
230 | (struct elf64_ia64_dyn_sym_info *, void *); | |
231 | static bfd_boolean allocate_local_got | |
232 | (struct elf64_ia64_dyn_sym_info *, void *); | |
233 | static bfd_boolean allocate_dynrel_entries | |
234 | (struct elf64_ia64_dyn_sym_info *, void *); | |
235 | static asection *get_pltoff | |
236 | (bfd *, struct elf64_ia64_link_hash_table *); | |
237 | static asection *get_got | |
238 | (bfd *, struct elf64_ia64_link_hash_table *); | |
239 | ||
240 | ||
241 | /* Given a ELF reloc, return the matching HOWTO structure. */ | |
242 | ||
243 | static void | |
244 | elf64_ia64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
245 | arelent *bfd_reloc, | |
246 | Elf_Internal_Rela *elf_reloc) | |
247 | { | |
248 | bfd_reloc->howto | |
249 | = ia64_elf_lookup_howto ((unsigned int) ELF64_R_TYPE (elf_reloc->r_info)); | |
250 | } | |
251 | ||
252 | ||
253 | #define PLT_FULL_ENTRY_SIZE (2 * 16) | |
254 | ||
255 | static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] = | |
256 | { | |
257 | 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */ | |
258 | 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/ | |
259 | 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */ | |
260 | 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */ | |
261 | 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */ | |
262 | 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */ | |
263 | }; | |
264 | ||
265 | static const bfd_byte oor_brl[16] = | |
266 | { | |
267 | 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */ | |
268 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;;*/ | |
269 | 0x00, 0x00, 0x00, 0xc0 | |
270 | }; | |
271 | ||
272 | ||
273 | /* These functions do relaxation for IA-64 ELF. */ | |
274 | ||
275 | /* Rename some of the generic section flags to better document how they | |
276 | are used here. */ | |
277 | #define skip_relax_pass_0 sec_flg0 | |
278 | #define skip_relax_pass_1 sec_flg1 | |
279 | ||
280 | static void | |
281 | elf64_ia64_update_short_info (asection *sec, bfd_vma offset, | |
282 | struct elf64_ia64_link_hash_table *ia64_info) | |
283 | { | |
284 | /* Skip ABS and SHF_IA_64_SHORT sections. */ | |
285 | if (sec == bfd_abs_section_ptr | |
286 | || (sec->flags & SEC_SMALL_DATA) != 0) | |
287 | return; | |
288 | ||
289 | if (!ia64_info->min_short_sec) | |
290 | { | |
291 | ia64_info->max_short_sec = sec; | |
292 | ia64_info->max_short_offset = offset; | |
293 | ia64_info->min_short_sec = sec; | |
294 | ia64_info->min_short_offset = offset; | |
295 | } | |
296 | else if (sec == ia64_info->max_short_sec | |
297 | && offset > ia64_info->max_short_offset) | |
298 | ia64_info->max_short_offset = offset; | |
299 | else if (sec == ia64_info->min_short_sec | |
300 | && offset < ia64_info->min_short_offset) | |
301 | ia64_info->min_short_offset = offset; | |
302 | else if (sec->output_section->vma | |
303 | > ia64_info->max_short_sec->vma) | |
304 | { | |
305 | ia64_info->max_short_sec = sec; | |
306 | ia64_info->max_short_offset = offset; | |
307 | } | |
308 | else if (sec->output_section->vma | |
309 | < ia64_info->min_short_sec->vma) | |
310 | { | |
311 | ia64_info->min_short_sec = sec; | |
312 | ia64_info->min_short_offset = offset; | |
313 | } | |
314 | } | |
315 | ||
316 | /* Use a two passes algorithm. In the first pass, branches are relaxed | |
317 | (which may increase the size of the section). In the second pass, | |
318 | the other relaxations are done. | |
319 | */ | |
320 | ||
321 | static bfd_boolean | |
322 | elf64_ia64_relax_section (bfd *abfd, asection *sec, | |
323 | struct bfd_link_info *link_info, | |
324 | bfd_boolean *again) | |
325 | { | |
326 | struct one_fixup | |
327 | { | |
328 | struct one_fixup *next; | |
329 | asection *tsec; | |
330 | bfd_vma toff; | |
331 | bfd_vma trampoff; | |
332 | }; | |
333 | ||
334 | Elf_Internal_Shdr *symtab_hdr; | |
335 | Elf_Internal_Rela *internal_relocs; | |
336 | Elf_Internal_Rela *irel, *irelend; | |
337 | bfd_byte *contents; | |
338 | Elf_Internal_Sym *isymbuf = NULL; | |
339 | struct elf64_ia64_link_hash_table *ia64_info; | |
340 | struct one_fixup *fixups = NULL; | |
341 | bfd_boolean changed_contents = FALSE; | |
342 | bfd_boolean changed_relocs = FALSE; | |
343 | bfd_boolean skip_relax_pass_0 = TRUE; | |
344 | bfd_boolean skip_relax_pass_1 = TRUE; | |
345 | bfd_vma gp = 0; | |
346 | ||
347 | /* Assume we're not going to change any sizes, and we'll only need | |
348 | one pass. */ | |
349 | *again = FALSE; | |
350 | ||
0e1862bb | 351 | if (bfd_link_relocatable (link_info)) |
202e2356 NC |
352 | (*link_info->callbacks->einfo) |
353 | (_("%P%F: --relax and -r may not be used together\n")); | |
354 | ||
355 | /* Don't even try to relax for non-ELF outputs. */ | |
356 | if (!is_elf_hash_table (link_info->hash)) | |
357 | return FALSE; | |
358 | ||
359 | /* Nothing to do if there are no relocations or there is no need for | |
360 | the current pass. */ | |
361 | if ((sec->flags & SEC_RELOC) == 0 | |
362 | || sec->reloc_count == 0 | |
363 | || (link_info->relax_pass == 0 && sec->skip_relax_pass_0) | |
364 | || (link_info->relax_pass == 1 && sec->skip_relax_pass_1)) | |
365 | return TRUE; | |
366 | ||
367 | ia64_info = elf64_ia64_hash_table (link_info); | |
368 | if (ia64_info == NULL) | |
369 | return FALSE; | |
370 | ||
371 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
372 | ||
373 | /* Load the relocations for this section. */ | |
374 | internal_relocs = (_bfd_elf_link_read_relocs | |
375 | (abfd, sec, NULL, (Elf_Internal_Rela *) NULL, | |
376 | link_info->keep_memory)); | |
377 | if (internal_relocs == NULL) | |
378 | return FALSE; | |
379 | ||
380 | irelend = internal_relocs + sec->reloc_count; | |
381 | ||
382 | /* Get the section contents. */ | |
383 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
384 | contents = elf_section_data (sec)->this_hdr.contents; | |
385 | else | |
386 | { | |
387 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) | |
388 | goto error_return; | |
389 | } | |
390 | ||
391 | for (irel = internal_relocs; irel < irelend; irel++) | |
392 | { | |
393 | unsigned long r_type = ELF64_R_TYPE (irel->r_info); | |
394 | bfd_vma symaddr, reladdr, trampoff, toff, roff; | |
395 | asection *tsec; | |
396 | struct one_fixup *f; | |
397 | bfd_size_type amt; | |
398 | bfd_boolean is_branch; | |
399 | struct elf64_ia64_dyn_sym_info *dyn_i; | |
400 | ||
401 | switch (r_type) | |
402 | { | |
403 | case R_IA64_PCREL21B: | |
404 | case R_IA64_PCREL21BI: | |
405 | case R_IA64_PCREL21M: | |
406 | case R_IA64_PCREL21F: | |
407 | /* In pass 1, all br relaxations are done. We can skip it. */ | |
408 | if (link_info->relax_pass == 1) | |
409 | continue; | |
410 | skip_relax_pass_0 = FALSE; | |
411 | is_branch = TRUE; | |
412 | break; | |
413 | ||
414 | case R_IA64_PCREL60B: | |
415 | /* We can't optimize brl to br in pass 0 since br relaxations | |
416 | will increase the code size. Defer it to pass 1. */ | |
417 | if (link_info->relax_pass == 0) | |
418 | { | |
419 | skip_relax_pass_1 = FALSE; | |
420 | continue; | |
421 | } | |
422 | is_branch = TRUE; | |
423 | break; | |
424 | ||
425 | case R_IA64_GPREL22: | |
426 | /* Update max_short_sec/min_short_sec. */ | |
427 | ||
428 | case R_IA64_LTOFF22X: | |
429 | case R_IA64_LDXMOV: | |
430 | /* We can't relax ldx/mov in pass 0 since br relaxations will | |
431 | increase the code size. Defer it to pass 1. */ | |
432 | if (link_info->relax_pass == 0) | |
433 | { | |
434 | skip_relax_pass_1 = FALSE; | |
435 | continue; | |
436 | } | |
437 | is_branch = FALSE; | |
438 | break; | |
439 | ||
440 | default: | |
441 | continue; | |
442 | } | |
443 | ||
444 | /* Get the value of the symbol referred to by the reloc. */ | |
445 | if (ELF64_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
446 | { | |
447 | /* A local symbol. */ | |
448 | Elf_Internal_Sym *isym; | |
449 | ||
450 | /* Read this BFD's local symbols. */ | |
451 | if (isymbuf == NULL) | |
452 | { | |
453 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
454 | if (isymbuf == NULL) | |
455 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
456 | symtab_hdr->sh_info, 0, | |
457 | NULL, NULL, NULL); | |
458 | if (isymbuf == 0) | |
459 | goto error_return; | |
460 | } | |
461 | ||
462 | isym = isymbuf + ELF64_R_SYM (irel->r_info); | |
463 | if (isym->st_shndx == SHN_UNDEF) | |
464 | continue; /* We can't do anything with undefined symbols. */ | |
465 | else if (isym->st_shndx == SHN_ABS) | |
466 | tsec = bfd_abs_section_ptr; | |
467 | else if (isym->st_shndx == SHN_COMMON) | |
468 | tsec = bfd_com_section_ptr; | |
469 | else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON) | |
470 | tsec = bfd_com_section_ptr; | |
471 | else | |
472 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
473 | ||
474 | toff = isym->st_value; | |
475 | dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE); | |
476 | } | |
477 | else | |
478 | { | |
479 | unsigned long indx; | |
480 | struct elf_link_hash_entry *h; | |
481 | ||
482 | indx = ELF64_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
483 | h = elf_sym_hashes (abfd)[indx]; | |
484 | BFD_ASSERT (h != NULL); | |
485 | ||
486 | while (h->root.type == bfd_link_hash_indirect | |
487 | || h->root.type == bfd_link_hash_warning) | |
488 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
489 | ||
490 | dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE); | |
491 | ||
492 | /* For branches to dynamic symbols, we're interested instead | |
493 | in a branch to the PLT entry. */ | |
494 | if (is_branch && dyn_i && dyn_i->want_plt2) | |
495 | { | |
496 | /* Internal branches shouldn't be sent to the PLT. | |
497 | Leave this for now and we'll give an error later. */ | |
498 | if (r_type != R_IA64_PCREL21B) | |
499 | continue; | |
500 | ||
501 | tsec = ia64_info->root.splt; | |
502 | toff = dyn_i->plt2_offset; | |
503 | BFD_ASSERT (irel->r_addend == 0); | |
504 | } | |
505 | ||
506 | /* Can't do anything else with dynamic symbols. */ | |
507 | else if (elf64_ia64_dynamic_symbol_p (h)) | |
508 | continue; | |
509 | ||
510 | else | |
511 | { | |
512 | /* We can't do anything with undefined symbols. */ | |
513 | if (h->root.type == bfd_link_hash_undefined | |
514 | || h->root.type == bfd_link_hash_undefweak) | |
515 | continue; | |
516 | ||
517 | tsec = h->root.u.def.section; | |
518 | toff = h->root.u.def.value; | |
519 | } | |
520 | } | |
521 | ||
522 | toff += irel->r_addend; | |
523 | ||
524 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; | |
525 | ||
526 | roff = irel->r_offset; | |
527 | ||
528 | if (is_branch) | |
529 | { | |
530 | bfd_signed_vma offset; | |
531 | ||
532 | reladdr = (sec->output_section->vma | |
533 | + sec->output_offset | |
534 | + roff) & (bfd_vma) -4; | |
535 | ||
536 | /* The .plt section is aligned at 32byte and the .text section | |
537 | is aligned at 64byte. The .text section is right after the | |
538 | .plt section. After the first relaxation pass, linker may | |
539 | increase the gap between the .plt and .text sections up | |
540 | to 32byte. We assume linker will always insert 32byte | |
a8685210 | 541 | between the .plt and .text sections after the first |
202e2356 NC |
542 | relaxation pass. */ |
543 | if (tsec == ia64_info->root.splt) | |
544 | offset = -0x1000000 + 32; | |
545 | else | |
546 | offset = -0x1000000; | |
547 | ||
548 | /* If the branch is in range, no need to do anything. */ | |
549 | if ((bfd_signed_vma) (symaddr - reladdr) >= offset | |
550 | && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0) | |
551 | { | |
552 | /* If the 60-bit branch is in 21-bit range, optimize it. */ | |
553 | if (r_type == R_IA64_PCREL60B) | |
554 | { | |
555 | ia64_elf_relax_brl (contents, roff); | |
556 | ||
557 | irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), | |
558 | R_IA64_PCREL21B); | |
559 | ||
560 | /* If the original relocation offset points to slot | |
561 | 1, change it to slot 2. */ | |
562 | if ((irel->r_offset & 3) == 1) | |
563 | irel->r_offset += 1; | |
564 | } | |
565 | ||
566 | continue; | |
567 | } | |
568 | else if (r_type == R_IA64_PCREL60B) | |
569 | continue; | |
570 | else if (ia64_elf_relax_br (contents, roff)) | |
571 | { | |
572 | irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), | |
573 | R_IA64_PCREL60B); | |
574 | ||
575 | /* Make the relocation offset point to slot 1. */ | |
576 | irel->r_offset = (irel->r_offset & ~((bfd_vma) 0x3)) + 1; | |
577 | continue; | |
578 | } | |
579 | ||
580 | /* We can't put a trampoline in a .init/.fini section. Issue | |
581 | an error. */ | |
582 | if (strcmp (sec->output_section->name, ".init") == 0 | |
583 | || strcmp (sec->output_section->name, ".fini") == 0) | |
584 | { | |
4eca0228 | 585 | _bfd_error_handler |
695344c0 | 586 | /* xgettext:c-format */ |
202e2356 NC |
587 | (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."), |
588 | sec->owner, sec, (unsigned long) roff); | |
589 | bfd_set_error (bfd_error_bad_value); | |
590 | goto error_return; | |
591 | } | |
592 | ||
593 | /* If the branch and target are in the same section, you've | |
594 | got one honking big section and we can't help you unless | |
595 | you are branching backwards. You'll get an error message | |
596 | later. */ | |
597 | if (tsec == sec && toff > roff) | |
598 | continue; | |
599 | ||
600 | /* Look for an existing fixup to this address. */ | |
601 | for (f = fixups; f ; f = f->next) | |
602 | if (f->tsec == tsec && f->toff == toff) | |
603 | break; | |
604 | ||
605 | if (f == NULL) | |
606 | { | |
607 | /* Two alternatives: If it's a branch to a PLT entry, we can | |
608 | make a copy of the FULL_PLT entry. Otherwise, we'll have | |
609 | to use a `brl' insn to get where we're going. */ | |
610 | ||
611 | size_t size; | |
612 | ||
613 | if (tsec == ia64_info->root.splt) | |
614 | size = sizeof (plt_full_entry); | |
615 | else | |
616 | size = sizeof (oor_brl); | |
617 | ||
618 | /* Resize the current section to make room for the new branch. */ | |
619 | trampoff = (sec->size + 15) & (bfd_vma) -16; | |
620 | ||
621 | /* If trampoline is out of range, there is nothing we | |
622 | can do. */ | |
623 | offset = trampoff - (roff & (bfd_vma) -4); | |
624 | if (offset < -0x1000000 || offset > 0x0FFFFF0) | |
625 | continue; | |
626 | ||
627 | amt = trampoff + size; | |
628 | contents = (bfd_byte *) bfd_realloc (contents, amt); | |
629 | if (contents == NULL) | |
630 | goto error_return; | |
631 | sec->size = amt; | |
632 | ||
633 | if (tsec == ia64_info->root.splt) | |
634 | { | |
635 | memcpy (contents + trampoff, plt_full_entry, size); | |
636 | ||
637 | /* Hijack the old relocation for use as the PLTOFF reloc. */ | |
638 | irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), | |
639 | R_IA64_PLTOFF22); | |
640 | irel->r_offset = trampoff; | |
641 | } | |
642 | else | |
643 | { | |
644 | memcpy (contents + trampoff, oor_brl, size); | |
645 | irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), | |
646 | R_IA64_PCREL60B); | |
647 | irel->r_offset = trampoff + 2; | |
648 | } | |
649 | ||
650 | /* Record the fixup so we don't do it again this section. */ | |
651 | f = (struct one_fixup *) | |
652 | bfd_malloc ((bfd_size_type) sizeof (*f)); | |
653 | f->next = fixups; | |
654 | f->tsec = tsec; | |
655 | f->toff = toff; | |
656 | f->trampoff = trampoff; | |
657 | fixups = f; | |
658 | } | |
659 | else | |
660 | { | |
661 | /* If trampoline is out of range, there is nothing we | |
662 | can do. */ | |
663 | offset = f->trampoff - (roff & (bfd_vma) -4); | |
664 | if (offset < -0x1000000 || offset > 0x0FFFFF0) | |
665 | continue; | |
666 | ||
667 | /* Nop out the reloc, since we're finalizing things here. */ | |
668 | irel->r_info = ELF64_R_INFO (0, R_IA64_NONE); | |
669 | } | |
670 | ||
671 | /* Fix up the existing branch to hit the trampoline. */ | |
672 | if (ia64_elf_install_value (contents + roff, offset, r_type) | |
673 | != bfd_reloc_ok) | |
674 | goto error_return; | |
675 | ||
676 | changed_contents = TRUE; | |
677 | changed_relocs = TRUE; | |
678 | } | |
679 | else | |
680 | { | |
681 | /* Fetch the gp. */ | |
682 | if (gp == 0) | |
683 | { | |
684 | bfd *obfd = sec->output_section->owner; | |
685 | gp = _bfd_get_gp_value (obfd); | |
686 | if (gp == 0) | |
687 | { | |
688 | if (!elf64_ia64_choose_gp (obfd, link_info, FALSE)) | |
689 | goto error_return; | |
690 | gp = _bfd_get_gp_value (obfd); | |
691 | } | |
692 | } | |
693 | ||
694 | /* If the data is out of range, do nothing. */ | |
695 | if ((bfd_signed_vma) (symaddr - gp) >= 0x200000 | |
696 | ||(bfd_signed_vma) (symaddr - gp) < -0x200000) | |
697 | continue; | |
698 | ||
699 | if (r_type == R_IA64_GPREL22) | |
700 | elf64_ia64_update_short_info (tsec->output_section, | |
701 | tsec->output_offset + toff, | |
702 | ia64_info); | |
703 | else if (r_type == R_IA64_LTOFF22X) | |
704 | { | |
705 | /* Can't deal yet correctly with ABS symbols. */ | |
706 | if (bfd_is_abs_section (tsec)) | |
707 | continue; | |
708 | ||
709 | irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), | |
710 | R_IA64_GPREL22); | |
711 | changed_relocs = TRUE; | |
712 | ||
713 | elf64_ia64_update_short_info (tsec->output_section, | |
714 | tsec->output_offset + toff, | |
715 | ia64_info); | |
716 | } | |
717 | else | |
718 | { | |
719 | ia64_elf_relax_ldxmov (contents, roff); | |
720 | irel->r_info = ELF64_R_INFO (0, R_IA64_NONE); | |
721 | changed_contents = TRUE; | |
722 | changed_relocs = TRUE; | |
723 | } | |
724 | } | |
725 | } | |
726 | ||
727 | /* ??? If we created fixups, this may push the code segment large | |
728 | enough that the data segment moves, which will change the GP. | |
729 | Reset the GP so that we re-calculate next round. We need to | |
730 | do this at the _beginning_ of the next round; now will not do. */ | |
731 | ||
732 | /* Clean up and go home. */ | |
733 | while (fixups) | |
734 | { | |
735 | struct one_fixup *f = fixups; | |
736 | fixups = fixups->next; | |
737 | free (f); | |
738 | } | |
739 | ||
740 | if (isymbuf != NULL | |
741 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
742 | { | |
743 | if (! link_info->keep_memory) | |
744 | free (isymbuf); | |
745 | else | |
746 | { | |
747 | /* Cache the symbols for elf_link_input_bfd. */ | |
748 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
749 | } | |
750 | } | |
751 | ||
752 | if (contents != NULL | |
753 | && elf_section_data (sec)->this_hdr.contents != contents) | |
754 | { | |
755 | if (!changed_contents && !link_info->keep_memory) | |
756 | free (contents); | |
757 | else | |
758 | { | |
759 | /* Cache the section contents for elf_link_input_bfd. */ | |
760 | elf_section_data (sec)->this_hdr.contents = contents; | |
761 | } | |
762 | } | |
763 | ||
764 | if (elf_section_data (sec)->relocs != internal_relocs) | |
765 | { | |
766 | if (!changed_relocs) | |
767 | free (internal_relocs); | |
768 | else | |
769 | elf_section_data (sec)->relocs = internal_relocs; | |
770 | } | |
771 | ||
772 | if (link_info->relax_pass == 0) | |
773 | { | |
774 | /* Pass 0 is only needed to relax br. */ | |
775 | sec->skip_relax_pass_0 = skip_relax_pass_0; | |
776 | sec->skip_relax_pass_1 = skip_relax_pass_1; | |
777 | } | |
778 | ||
779 | *again = changed_contents || changed_relocs; | |
780 | return TRUE; | |
781 | ||
782 | error_return: | |
783 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) | |
784 | free (isymbuf); | |
785 | if (contents != NULL | |
786 | && elf_section_data (sec)->this_hdr.contents != contents) | |
787 | free (contents); | |
788 | if (internal_relocs != NULL | |
789 | && elf_section_data (sec)->relocs != internal_relocs) | |
790 | free (internal_relocs); | |
791 | return FALSE; | |
792 | } | |
793 | #undef skip_relax_pass_0 | |
794 | #undef skip_relax_pass_1 | |
795 | ||
796 | /* Return TRUE if NAME is an unwind table section name. */ | |
797 | ||
798 | static inline bfd_boolean | |
799 | is_unwind_section_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name) | |
800 | { | |
801 | return ((CONST_STRNEQ (name, ELF_STRING_ia64_unwind) | |
802 | && ! CONST_STRNEQ (name, ELF_STRING_ia64_unwind_info)) | |
803 | || CONST_STRNEQ (name, ELF_STRING_ia64_unwind_once)); | |
804 | } | |
805 | ||
806 | ||
807 | /* Convert IA-64 specific section flags to bfd internal section flags. */ | |
808 | ||
809 | /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV | |
810 | flag. */ | |
811 | ||
812 | static bfd_boolean | |
813 | elf64_ia64_section_flags (flagword *flags, | |
814 | const Elf_Internal_Shdr *hdr) | |
815 | { | |
816 | if (hdr->sh_flags & SHF_IA_64_SHORT) | |
817 | *flags |= SEC_SMALL_DATA; | |
818 | ||
819 | return TRUE; | |
820 | } | |
821 | ||
822 | /* Set the correct type for an IA-64 ELF section. We do this by the | |
823 | section name, which is a hack, but ought to work. */ | |
824 | ||
825 | static bfd_boolean | |
826 | elf64_ia64_fake_sections (bfd *abfd, Elf_Internal_Shdr *hdr, | |
827 | asection *sec) | |
828 | { | |
829 | const char *name; | |
830 | ||
831 | name = bfd_get_section_name (abfd, sec); | |
832 | ||
833 | if (is_unwind_section_name (abfd, name)) | |
834 | { | |
835 | /* We don't have the sections numbered at this point, so sh_info | |
836 | is set later, in elf64_ia64_final_write_processing. */ | |
837 | hdr->sh_type = SHT_IA_64_UNWIND; | |
838 | hdr->sh_flags |= SHF_LINK_ORDER; | |
839 | } | |
840 | else if (strcmp (name, ELF_STRING_ia64_archext) == 0) | |
841 | hdr->sh_type = SHT_IA_64_EXT; | |
842 | ||
843 | if (sec->flags & SEC_SMALL_DATA) | |
844 | hdr->sh_flags |= SHF_IA_64_SHORT; | |
845 | ||
846 | return TRUE; | |
847 | } | |
848 | ||
849 | /* Hook called by the linker routine which adds symbols from an object | |
850 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
851 | ||
852 | static bfd_boolean | |
853 | elf64_ia64_add_symbol_hook (bfd *abfd, | |
854 | struct bfd_link_info *info, | |
855 | Elf_Internal_Sym *sym, | |
856 | const char **namep ATTRIBUTE_UNUSED, | |
857 | flagword *flagsp ATTRIBUTE_UNUSED, | |
858 | asection **secp, | |
859 | bfd_vma *valp) | |
860 | { | |
861 | if (sym->st_shndx == SHN_COMMON | |
0e1862bb | 862 | && !bfd_link_relocatable (info) |
202e2356 NC |
863 | && sym->st_size <= elf_gp_size (abfd)) |
864 | { | |
865 | /* Common symbols less than or equal to -G nn bytes are | |
866 | automatically put into .sbss. */ | |
867 | ||
868 | asection *scomm = bfd_get_section_by_name (abfd, ".scommon"); | |
869 | ||
870 | if (scomm == NULL) | |
871 | { | |
872 | scomm = bfd_make_section_with_flags (abfd, ".scommon", | |
873 | (SEC_ALLOC | |
874 | | SEC_IS_COMMON | |
875 | | SEC_LINKER_CREATED)); | |
876 | if (scomm == NULL) | |
877 | return FALSE; | |
878 | } | |
879 | ||
880 | *secp = scomm; | |
881 | *valp = sym->st_size; | |
882 | } | |
883 | ||
884 | return TRUE; | |
885 | } | |
886 | ||
887 | /* According to the Tahoe assembler spec, all labels starting with a | |
888 | '.' are local. */ | |
889 | ||
890 | static bfd_boolean | |
891 | elf64_ia64_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, | |
892 | const char *name) | |
893 | { | |
894 | return name[0] == '.'; | |
895 | } | |
896 | ||
897 | /* Should we do dynamic things to this symbol? */ | |
898 | ||
899 | static bfd_boolean | |
900 | elf64_ia64_dynamic_symbol_p (struct elf_link_hash_entry *h) | |
901 | { | |
902 | return h != NULL && h->def_dynamic; | |
903 | } | |
904 | ||
905 | static struct bfd_hash_entry* | |
906 | elf64_ia64_new_elf_hash_entry (struct bfd_hash_entry *entry, | |
907 | struct bfd_hash_table *table, | |
908 | const char *string) | |
909 | { | |
910 | struct elf64_ia64_link_hash_entry *ret; | |
911 | ret = (struct elf64_ia64_link_hash_entry *) entry; | |
912 | ||
913 | /* Allocate the structure if it has not already been allocated by a | |
914 | subclass. */ | |
915 | if (!ret) | |
916 | ret = bfd_hash_allocate (table, sizeof (*ret)); | |
917 | ||
918 | if (!ret) | |
919 | return 0; | |
920 | ||
921 | /* Call the allocation method of the superclass. */ | |
922 | ret = ((struct elf64_ia64_link_hash_entry *) | |
923 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
924 | table, string)); | |
925 | ||
926 | ret->info = NULL; | |
927 | ret->count = 0; | |
928 | ret->sorted_count = 0; | |
929 | ret->size = 0; | |
930 | return (struct bfd_hash_entry *) ret; | |
931 | } | |
932 | ||
933 | static void | |
934 | elf64_ia64_hash_hide_symbol (struct bfd_link_info *info, | |
935 | struct elf_link_hash_entry *xh, | |
936 | bfd_boolean force_local) | |
937 | { | |
938 | struct elf64_ia64_link_hash_entry *h; | |
939 | struct elf64_ia64_dyn_sym_info *dyn_i; | |
940 | unsigned int count; | |
941 | ||
942 | h = (struct elf64_ia64_link_hash_entry *)xh; | |
943 | ||
944 | _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local); | |
945 | ||
946 | for (count = h->count, dyn_i = h->info; | |
947 | count != 0; | |
948 | count--, dyn_i++) | |
949 | { | |
950 | dyn_i->want_plt2 = 0; | |
951 | dyn_i->want_plt = 0; | |
952 | } | |
953 | } | |
954 | ||
955 | /* Compute a hash of a local hash entry. */ | |
956 | ||
957 | static hashval_t | |
958 | elf64_ia64_local_htab_hash (const void *ptr) | |
959 | { | |
960 | struct elf64_ia64_local_hash_entry *entry | |
961 | = (struct elf64_ia64_local_hash_entry *) ptr; | |
962 | ||
963 | return ELF_LOCAL_SYMBOL_HASH (entry->id, entry->r_sym); | |
964 | } | |
965 | ||
966 | /* Compare local hash entries. */ | |
967 | ||
968 | static int | |
969 | elf64_ia64_local_htab_eq (const void *ptr1, const void *ptr2) | |
970 | { | |
971 | struct elf64_ia64_local_hash_entry *entry1 | |
972 | = (struct elf64_ia64_local_hash_entry *) ptr1; | |
973 | struct elf64_ia64_local_hash_entry *entry2 | |
974 | = (struct elf64_ia64_local_hash_entry *) ptr2; | |
975 | ||
976 | return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym; | |
977 | } | |
978 | ||
202e2356 NC |
979 | /* Free the global elf64_ia64_dyn_sym_info array. */ |
980 | ||
981 | static bfd_boolean | |
982 | elf64_ia64_global_dyn_info_free (void **xentry, | |
983 | void * unused ATTRIBUTE_UNUSED) | |
984 | { | |
985 | struct elf64_ia64_link_hash_entry *entry | |
986 | = (struct elf64_ia64_link_hash_entry *) xentry; | |
987 | ||
988 | if (entry->root.root.type == bfd_link_hash_warning) | |
989 | entry = (struct elf64_ia64_link_hash_entry *) entry->root.root.u.i.link; | |
990 | ||
991 | if (entry->info) | |
992 | { | |
993 | free (entry->info); | |
994 | entry->info = NULL; | |
995 | entry->count = 0; | |
996 | entry->sorted_count = 0; | |
997 | entry->size = 0; | |
998 | } | |
999 | ||
1000 | return TRUE; | |
1001 | } | |
1002 | ||
1003 | /* Free the local elf64_ia64_dyn_sym_info array. */ | |
1004 | ||
1005 | static bfd_boolean | |
1006 | elf64_ia64_local_dyn_info_free (void **slot, | |
1007 | void * unused ATTRIBUTE_UNUSED) | |
1008 | { | |
1009 | struct elf64_ia64_local_hash_entry *entry | |
1010 | = (struct elf64_ia64_local_hash_entry *) *slot; | |
1011 | ||
1012 | if (entry->info) | |
1013 | { | |
1014 | free (entry->info); | |
1015 | entry->info = NULL; | |
1016 | entry->count = 0; | |
1017 | entry->sorted_count = 0; | |
1018 | entry->size = 0; | |
1019 | } | |
1020 | ||
1021 | return TRUE; | |
1022 | } | |
1023 | ||
1024 | /* Destroy IA-64 linker hash table. */ | |
1025 | ||
1026 | static void | |
d495ab0d | 1027 | elf64_ia64_link_hash_table_free (bfd *obfd) |
202e2356 NC |
1028 | { |
1029 | struct elf64_ia64_link_hash_table *ia64_info | |
d495ab0d | 1030 | = (struct elf64_ia64_link_hash_table *) obfd->link.hash; |
202e2356 NC |
1031 | if (ia64_info->loc_hash_table) |
1032 | { | |
1033 | htab_traverse (ia64_info->loc_hash_table, | |
1034 | elf64_ia64_local_dyn_info_free, NULL); | |
1035 | htab_delete (ia64_info->loc_hash_table); | |
1036 | } | |
1037 | if (ia64_info->loc_hash_memory) | |
1038 | objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory); | |
1039 | elf_link_hash_traverse (&ia64_info->root, | |
1040 | elf64_ia64_global_dyn_info_free, NULL); | |
d495ab0d | 1041 | _bfd_elf_link_hash_table_free (obfd); |
202e2356 NC |
1042 | } |
1043 | ||
68faa637 AM |
1044 | /* Create the derived linker hash table. The IA-64 ELF port uses this |
1045 | derived hash table to keep information specific to the IA-64 ElF | |
1046 | linker (without using static variables). */ | |
1047 | ||
1048 | static struct bfd_link_hash_table * | |
1049 | elf64_ia64_hash_table_create (bfd *abfd) | |
1050 | { | |
1051 | struct elf64_ia64_link_hash_table *ret; | |
1052 | ||
1053 | ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret)); | |
1054 | if (!ret) | |
1055 | return NULL; | |
1056 | ||
1057 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, | |
1058 | elf64_ia64_new_elf_hash_entry, | |
1059 | sizeof (struct elf64_ia64_link_hash_entry), | |
1060 | IA64_ELF_DATA)) | |
1061 | { | |
1062 | free (ret); | |
1063 | return NULL; | |
1064 | } | |
1065 | ||
1066 | ret->loc_hash_table = htab_try_create (1024, elf64_ia64_local_htab_hash, | |
1067 | elf64_ia64_local_htab_eq, NULL); | |
1068 | ret->loc_hash_memory = objalloc_create (); | |
1069 | if (!ret->loc_hash_table || !ret->loc_hash_memory) | |
1070 | { | |
d495ab0d | 1071 | elf64_ia64_link_hash_table_free (abfd); |
68faa637 AM |
1072 | return NULL; |
1073 | } | |
d495ab0d | 1074 | ret->root.root.hash_table_free = elf64_ia64_link_hash_table_free; |
68faa637 AM |
1075 | |
1076 | return &ret->root.root; | |
1077 | } | |
1078 | ||
202e2356 NC |
1079 | /* Traverse both local and global hash tables. */ |
1080 | ||
1081 | struct elf64_ia64_dyn_sym_traverse_data | |
1082 | { | |
1083 | bfd_boolean (*func) (struct elf64_ia64_dyn_sym_info *, void *); | |
1084 | void * data; | |
1085 | }; | |
1086 | ||
1087 | static bfd_boolean | |
1088 | elf64_ia64_global_dyn_sym_thunk (struct bfd_hash_entry *xentry, | |
1089 | void * xdata) | |
1090 | { | |
1091 | struct elf64_ia64_link_hash_entry *entry | |
1092 | = (struct elf64_ia64_link_hash_entry *) xentry; | |
1093 | struct elf64_ia64_dyn_sym_traverse_data *data | |
1094 | = (struct elf64_ia64_dyn_sym_traverse_data *) xdata; | |
1095 | struct elf64_ia64_dyn_sym_info *dyn_i; | |
1096 | unsigned int count; | |
1097 | ||
1098 | if (entry->root.root.type == bfd_link_hash_warning) | |
1099 | entry = (struct elf64_ia64_link_hash_entry *) entry->root.root.u.i.link; | |
1100 | ||
1101 | for (count = entry->count, dyn_i = entry->info; | |
1102 | count != 0; | |
1103 | count--, dyn_i++) | |
1104 | if (! (*data->func) (dyn_i, data->data)) | |
1105 | return FALSE; | |
1106 | return TRUE; | |
1107 | } | |
1108 | ||
1109 | static bfd_boolean | |
1110 | elf64_ia64_local_dyn_sym_thunk (void **slot, void * xdata) | |
1111 | { | |
1112 | struct elf64_ia64_local_hash_entry *entry | |
1113 | = (struct elf64_ia64_local_hash_entry *) *slot; | |
1114 | struct elf64_ia64_dyn_sym_traverse_data *data | |
1115 | = (struct elf64_ia64_dyn_sym_traverse_data *) xdata; | |
1116 | struct elf64_ia64_dyn_sym_info *dyn_i; | |
1117 | unsigned int count; | |
1118 | ||
1119 | for (count = entry->count, dyn_i = entry->info; | |
1120 | count != 0; | |
1121 | count--, dyn_i++) | |
1122 | if (! (*data->func) (dyn_i, data->data)) | |
1123 | return FALSE; | |
1124 | return TRUE; | |
1125 | } | |
1126 | ||
1127 | static void | |
1128 | elf64_ia64_dyn_sym_traverse (struct elf64_ia64_link_hash_table *ia64_info, | |
1129 | bfd_boolean (*func) (struct elf64_ia64_dyn_sym_info *, void *), | |
1130 | void * data) | |
1131 | { | |
1132 | struct elf64_ia64_dyn_sym_traverse_data xdata; | |
1133 | ||
1134 | xdata.func = func; | |
1135 | xdata.data = data; | |
1136 | ||
1137 | elf_link_hash_traverse (&ia64_info->root, | |
1138 | elf64_ia64_global_dyn_sym_thunk, &xdata); | |
1139 | htab_traverse (ia64_info->loc_hash_table, | |
1140 | elf64_ia64_local_dyn_sym_thunk, &xdata); | |
1141 | } | |
1142 | ||
1143 | #define NOTE_NAME "IPF/VMS" | |
1144 | ||
1145 | static bfd_boolean | |
1146 | create_ia64_vms_notes (bfd *abfd, struct bfd_link_info *info, | |
1147 | unsigned int time_hi, unsigned int time_lo) | |
1148 | { | |
1149 | #define NBR_NOTES 7 | |
1150 | Elf_Internal_Note notes[NBR_NOTES]; | |
1151 | char *module_name; | |
1152 | int module_name_len; | |
1153 | unsigned char cur_time[8]; | |
1154 | Elf64_External_VMS_ORIG_DYN_Note *orig_dyn; | |
1155 | unsigned int orig_dyn_size; | |
1156 | unsigned int note_size; | |
1157 | int i; | |
1158 | unsigned char *noteptr; | |
1159 | unsigned char *note_contents; | |
1160 | struct elf64_ia64_link_hash_table *ia64_info; | |
1161 | ||
1162 | ia64_info = elf64_ia64_hash_table (info); | |
1163 | ||
1164 | module_name = vms_get_module_name (bfd_get_filename (abfd), TRUE); | |
1165 | module_name_len = strlen (module_name) + 1; | |
1166 | ||
1167 | bfd_putl32 (time_lo, cur_time + 0); | |
1168 | bfd_putl32 (time_hi, cur_time + 4); | |
1169 | ||
1170 | /* Note 0: IMGNAM. */ | |
1171 | notes[0].type = NT_VMS_IMGNAM; | |
1172 | notes[0].descdata = module_name; | |
1173 | notes[0].descsz = module_name_len; | |
1174 | ||
1175 | /* Note 1: GSTNAM. */ | |
1176 | notes[1].type = NT_VMS_GSTNAM; | |
1177 | notes[1].descdata = module_name; | |
1178 | notes[1].descsz = module_name_len; | |
1179 | ||
1180 | /* Note 2: IMGID. */ | |
1181 | #define IMG_ID "V1.0" | |
1182 | notes[2].type = NT_VMS_IMGID; | |
1183 | notes[2].descdata = IMG_ID; | |
1184 | notes[2].descsz = sizeof (IMG_ID); | |
1185 | ||
1186 | /* Note 3: Linktime. */ | |
1187 | notes[3].type = NT_VMS_LINKTIME; | |
1188 | notes[3].descdata = (char *)cur_time; | |
1189 | notes[3].descsz = sizeof (cur_time); | |
1190 | ||
1191 | /* Note 4: Linker id. */ | |
1192 | notes[4].type = NT_VMS_LINKID; | |
1193 | notes[4].descdata = "GNU ld " BFD_VERSION_STRING; | |
1194 | notes[4].descsz = strlen (notes[4].descdata) + 1; | |
1195 | ||
1196 | /* Note 5: Original dyn. */ | |
1197 | orig_dyn_size = (sizeof (*orig_dyn) + sizeof (IMG_ID) - 1 + 7) & ~7; | |
1198 | orig_dyn = bfd_zalloc (abfd, orig_dyn_size); | |
1199 | if (orig_dyn == NULL) | |
1200 | return FALSE; | |
1201 | bfd_putl32 (1, orig_dyn->major_id); | |
1202 | bfd_putl32 (3, orig_dyn->minor_id); | |
1203 | memcpy (orig_dyn->manipulation_date, cur_time, sizeof (cur_time)); | |
1204 | bfd_putl64 (VMS_LF_IMGSTA | VMS_LF_MAIN, orig_dyn->link_flags); | |
1205 | bfd_putl32 (EF_IA_64_ABI64, orig_dyn->elf_flags); | |
1206 | memcpy (orig_dyn->imgid, IMG_ID, sizeof (IMG_ID)); | |
1207 | notes[5].type = NT_VMS_ORIG_DYN; | |
1208 | notes[5].descdata = (char *)orig_dyn; | |
1209 | notes[5].descsz = orig_dyn_size; | |
1210 | ||
1211 | /* Note 3: Patchtime. */ | |
1212 | notes[6].type = NT_VMS_PATCHTIME; | |
1213 | notes[6].descdata = (char *)cur_time; | |
1214 | notes[6].descsz = sizeof (cur_time); | |
1215 | ||
1216 | /* Compute notes size. */ | |
1217 | note_size = 0; | |
1218 | for (i = 0; i < NBR_NOTES; i++) | |
1219 | note_size += sizeof (Elf64_External_VMS_Note) - 1 | |
1220 | + ((sizeof (NOTE_NAME) - 1 + 7) & ~7) | |
1221 | + ((notes[i].descsz + 7) & ~7); | |
1222 | ||
1223 | /* Malloc a temporary buffer large enough for most notes */ | |
1224 | note_contents = (unsigned char *) bfd_zalloc (abfd, note_size); | |
1225 | if (note_contents == NULL) | |
1226 | return FALSE; | |
1227 | noteptr = note_contents; | |
1228 | ||
1229 | /* Fill notes. */ | |
1230 | for (i = 0; i < NBR_NOTES; i++) | |
1231 | { | |
1232 | Elf64_External_VMS_Note *enote = (Elf64_External_VMS_Note *) noteptr; | |
1233 | ||
1234 | bfd_putl64 (sizeof (NOTE_NAME) - 1, enote->namesz); | |
1235 | bfd_putl64 (notes[i].descsz, enote->descsz); | |
1236 | bfd_putl64 (notes[i].type, enote->type); | |
1237 | ||
1238 | noteptr = (unsigned char *)enote->name; | |
1239 | memcpy (noteptr, NOTE_NAME, sizeof (NOTE_NAME) - 1); | |
1240 | noteptr += (sizeof (NOTE_NAME) - 1 + 7) & ~7; | |
1241 | memcpy (noteptr, notes[i].descdata, notes[i].descsz); | |
1242 | noteptr += (notes[i].descsz + 7) & ~7; | |
1243 | } | |
1244 | ||
1245 | ia64_info->note_sec->contents = note_contents; | |
1246 | ia64_info->note_sec->size = note_size; | |
1247 | ||
1248 | free (module_name); | |
1249 | ||
1250 | return TRUE; | |
1251 | } | |
1252 | ||
1253 | static bfd_boolean | |
1254 | elf64_ia64_create_dynamic_sections (bfd *abfd, | |
1255 | struct bfd_link_info *info) | |
1256 | { | |
1257 | struct elf64_ia64_link_hash_table *ia64_info; | |
1258 | asection *s; | |
1259 | flagword flags; | |
1260 | const struct elf_backend_data *bed; | |
1261 | ||
1262 | ia64_info = elf64_ia64_hash_table (info); | |
1263 | if (ia64_info == NULL) | |
1264 | return FALSE; | |
1265 | ||
1266 | if (elf_hash_table (info)->dynamic_sections_created) | |
1267 | return TRUE; | |
1268 | ||
1269 | abfd = elf_hash_table (info)->dynobj; | |
1270 | bed = get_elf_backend_data (abfd); | |
1271 | ||
1272 | flags = bed->dynamic_sec_flags; | |
1273 | ||
3d4d4302 AM |
1274 | s = bfd_make_section_anyway_with_flags (abfd, ".dynamic", |
1275 | flags | SEC_READONLY); | |
202e2356 NC |
1276 | if (s == NULL |
1277 | || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) | |
1278 | return FALSE; | |
1279 | ||
3d4d4302 | 1280 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", flags | SEC_READONLY); |
202e2356 NC |
1281 | if (s == NULL |
1282 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
1283 | return FALSE; | |
1284 | ia64_info->root.splt = s; | |
1285 | ||
1286 | if (!get_got (abfd, ia64_info)) | |
1287 | return FALSE; | |
1288 | ||
1289 | if (!get_pltoff (abfd, ia64_info)) | |
1290 | return FALSE; | |
1291 | ||
3d4d4302 AM |
1292 | s = bfd_make_section_anyway_with_flags (abfd, ".vmsdynstr", |
1293 | (SEC_ALLOC | |
1294 | | SEC_HAS_CONTENTS | |
1295 | | SEC_IN_MEMORY | |
1296 | | SEC_LINKER_CREATED)); | |
202e2356 NC |
1297 | if (s == NULL |
1298 | || !bfd_set_section_alignment (abfd, s, 0)) | |
1299 | return FALSE; | |
1300 | ||
1301 | /* Create a fixup section. */ | |
3d4d4302 AM |
1302 | s = bfd_make_section_anyway_with_flags (abfd, ".fixups", |
1303 | (SEC_ALLOC | |
1304 | | SEC_HAS_CONTENTS | |
1305 | | SEC_IN_MEMORY | |
1306 | | SEC_LINKER_CREATED)); | |
202e2356 NC |
1307 | if (s == NULL |
1308 | || !bfd_set_section_alignment (abfd, s, 3)) | |
1309 | return FALSE; | |
1310 | ia64_info->fixups_sec = s; | |
1311 | ||
1312 | /* Create the transfer fixup section. */ | |
3d4d4302 AM |
1313 | s = bfd_make_section_anyway_with_flags (abfd, ".transfer", |
1314 | (SEC_ALLOC | |
1315 | | SEC_HAS_CONTENTS | |
1316 | | SEC_IN_MEMORY | |
1317 | | SEC_LINKER_CREATED)); | |
202e2356 NC |
1318 | if (s == NULL |
1319 | || !bfd_set_section_alignment (abfd, s, 3)) | |
1320 | return FALSE; | |
1321 | s->size = sizeof (struct elf64_vms_transfer); | |
1322 | ia64_info->transfer_sec = s; | |
1323 | ||
1324 | /* Create note section. */ | |
1325 | s = bfd_make_section_anyway_with_flags (abfd, ".vms.note", | |
1326 | (SEC_LINKER_CREATED | |
1327 | | SEC_HAS_CONTENTS | |
1328 | | SEC_IN_MEMORY | |
1329 | | SEC_READONLY)); | |
1330 | if (s == NULL | |
1331 | || !bfd_set_section_alignment (abfd, s, 3)) | |
1332 | return FALSE; | |
1333 | ia64_info->note_sec = s; | |
1334 | ||
1335 | elf_hash_table (info)->dynamic_sections_created = TRUE; | |
1336 | return TRUE; | |
1337 | } | |
1338 | ||
1339 | /* Find and/or create a hash entry for local symbol. */ | |
1340 | static struct elf64_ia64_local_hash_entry * | |
1341 | get_local_sym_hash (struct elf64_ia64_link_hash_table *ia64_info, | |
1342 | bfd *abfd, const Elf_Internal_Rela *rel, | |
1343 | bfd_boolean create) | |
1344 | { | |
1345 | struct elf64_ia64_local_hash_entry e, *ret; | |
1346 | asection *sec = abfd->sections; | |
1347 | hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id, | |
1348 | ELF64_R_SYM (rel->r_info)); | |
1349 | void **slot; | |
1350 | ||
1351 | e.id = sec->id; | |
1352 | e.r_sym = ELF64_R_SYM (rel->r_info); | |
1353 | slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h, | |
1354 | create ? INSERT : NO_INSERT); | |
1355 | ||
1356 | if (!slot) | |
1357 | return NULL; | |
1358 | ||
1359 | if (*slot) | |
1360 | return (struct elf64_ia64_local_hash_entry *) *slot; | |
1361 | ||
1362 | ret = (struct elf64_ia64_local_hash_entry *) | |
1363 | objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory, | |
1364 | sizeof (struct elf64_ia64_local_hash_entry)); | |
1365 | if (ret) | |
1366 | { | |
1367 | memset (ret, 0, sizeof (*ret)); | |
1368 | ret->id = sec->id; | |
1369 | ret->r_sym = ELF64_R_SYM (rel->r_info); | |
1370 | *slot = ret; | |
1371 | } | |
1372 | return ret; | |
1373 | } | |
1374 | ||
1375 | /* Used to sort elf64_ia64_dyn_sym_info array. */ | |
1376 | ||
1377 | static int | |
1378 | addend_compare (const void *xp, const void *yp) | |
1379 | { | |
1380 | const struct elf64_ia64_dyn_sym_info *x | |
1381 | = (const struct elf64_ia64_dyn_sym_info *) xp; | |
1382 | const struct elf64_ia64_dyn_sym_info *y | |
1383 | = (const struct elf64_ia64_dyn_sym_info *) yp; | |
1384 | ||
1385 | return x->addend < y->addend ? -1 : x->addend > y->addend ? 1 : 0; | |
1386 | } | |
1387 | ||
1388 | /* Sort elf64_ia64_dyn_sym_info array and remove duplicates. */ | |
1389 | ||
1390 | static unsigned int | |
1391 | sort_dyn_sym_info (struct elf64_ia64_dyn_sym_info *info, | |
1392 | unsigned int count) | |
1393 | { | |
1394 | bfd_vma curr, prev, got_offset; | |
1395 | unsigned int i, kept, dupes, diff, dest, src, len; | |
1396 | ||
1397 | qsort (info, count, sizeof (*info), addend_compare); | |
1398 | ||
1399 | /* Find the first duplicate. */ | |
1400 | prev = info [0].addend; | |
1401 | got_offset = info [0].got_offset; | |
1402 | for (i = 1; i < count; i++) | |
1403 | { | |
1404 | curr = info [i].addend; | |
1405 | if (curr == prev) | |
1406 | { | |
1407 | /* For duplicates, make sure that GOT_OFFSET is valid. */ | |
1408 | if (got_offset == (bfd_vma) -1) | |
1409 | got_offset = info [i].got_offset; | |
1410 | break; | |
1411 | } | |
1412 | got_offset = info [i].got_offset; | |
1413 | prev = curr; | |
1414 | } | |
1415 | ||
1416 | /* We may move a block of elements to here. */ | |
1417 | dest = i++; | |
1418 | ||
1419 | /* Remove duplicates. */ | |
1420 | if (i < count) | |
1421 | { | |
1422 | while (i < count) | |
1423 | { | |
1424 | /* For duplicates, make sure that the kept one has a valid | |
1425 | got_offset. */ | |
1426 | kept = dest - 1; | |
1427 | if (got_offset != (bfd_vma) -1) | |
1428 | info [kept].got_offset = got_offset; | |
1429 | ||
1430 | curr = info [i].addend; | |
1431 | got_offset = info [i].got_offset; | |
1432 | ||
1433 | /* Move a block of elements whose first one is different from | |
1434 | the previous. */ | |
1435 | if (curr == prev) | |
1436 | { | |
1437 | for (src = i + 1; src < count; src++) | |
1438 | { | |
1439 | if (info [src].addend != curr) | |
1440 | break; | |
1441 | /* For duplicates, make sure that GOT_OFFSET is | |
1442 | valid. */ | |
1443 | if (got_offset == (bfd_vma) -1) | |
1444 | got_offset = info [src].got_offset; | |
1445 | } | |
1446 | ||
1447 | /* Make sure that the kept one has a valid got_offset. */ | |
1448 | if (got_offset != (bfd_vma) -1) | |
1449 | info [kept].got_offset = got_offset; | |
1450 | } | |
1451 | else | |
1452 | src = i; | |
1453 | ||
1454 | if (src >= count) | |
1455 | break; | |
1456 | ||
1457 | /* Find the next duplicate. SRC will be kept. */ | |
1458 | prev = info [src].addend; | |
1459 | got_offset = info [src].got_offset; | |
1460 | for (dupes = src + 1; dupes < count; dupes ++) | |
1461 | { | |
1462 | curr = info [dupes].addend; | |
1463 | if (curr == prev) | |
1464 | { | |
1465 | /* Make sure that got_offset is valid. */ | |
1466 | if (got_offset == (bfd_vma) -1) | |
1467 | got_offset = info [dupes].got_offset; | |
1468 | ||
1469 | /* For duplicates, make sure that the kept one has | |
1470 | a valid got_offset. */ | |
1471 | if (got_offset != (bfd_vma) -1) | |
1472 | info [dupes - 1].got_offset = got_offset; | |
1473 | break; | |
1474 | } | |
1475 | got_offset = info [dupes].got_offset; | |
1476 | prev = curr; | |
1477 | } | |
1478 | ||
1479 | /* How much to move. */ | |
1480 | len = dupes - src; | |
1481 | i = dupes + 1; | |
1482 | ||
1483 | if (len == 1 && dupes < count) | |
1484 | { | |
1485 | /* If we only move 1 element, we combine it with the next | |
1486 | one. There must be at least a duplicate. Find the | |
1487 | next different one. */ | |
1488 | for (diff = dupes + 1, src++; diff < count; diff++, src++) | |
1489 | { | |
1490 | if (info [diff].addend != curr) | |
1491 | break; | |
1492 | /* Make sure that got_offset is valid. */ | |
1493 | if (got_offset == (bfd_vma) -1) | |
1494 | got_offset = info [diff].got_offset; | |
1495 | } | |
1496 | ||
1497 | /* Makre sure that the last duplicated one has an valid | |
1498 | offset. */ | |
1499 | BFD_ASSERT (curr == prev); | |
1500 | if (got_offset != (bfd_vma) -1) | |
1501 | info [diff - 1].got_offset = got_offset; | |
1502 | ||
1503 | if (diff < count) | |
1504 | { | |
1505 | /* Find the next duplicate. Track the current valid | |
1506 | offset. */ | |
1507 | prev = info [diff].addend; | |
1508 | got_offset = info [diff].got_offset; | |
1509 | for (dupes = diff + 1; dupes < count; dupes ++) | |
1510 | { | |
1511 | curr = info [dupes].addend; | |
1512 | if (curr == prev) | |
1513 | { | |
1514 | /* For duplicates, make sure that GOT_OFFSET | |
1515 | is valid. */ | |
1516 | if (got_offset == (bfd_vma) -1) | |
1517 | got_offset = info [dupes].got_offset; | |
1518 | break; | |
1519 | } | |
1520 | got_offset = info [dupes].got_offset; | |
1521 | prev = curr; | |
1522 | diff++; | |
1523 | } | |
1524 | ||
1525 | len = diff - src + 1; | |
1526 | i = diff + 1; | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | memmove (&info [dest], &info [src], len * sizeof (*info)); | |
1531 | ||
1532 | dest += len; | |
1533 | } | |
1534 | ||
1535 | count = dest; | |
1536 | } | |
1537 | else | |
1538 | { | |
1539 | /* When we get here, either there is no duplicate at all or | |
1540 | the only duplicate is the last element. */ | |
1541 | if (dest < count) | |
1542 | { | |
1543 | /* If the last element is a duplicate, make sure that the | |
1544 | kept one has a valid got_offset. We also update count. */ | |
1545 | if (got_offset != (bfd_vma) -1) | |
1546 | info [dest - 1].got_offset = got_offset; | |
1547 | count = dest; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | return count; | |
1552 | } | |
1553 | ||
1554 | /* Find and/or create a descriptor for dynamic symbol info. This will | |
1555 | vary based on global or local symbol, and the addend to the reloc. | |
1556 | ||
1557 | We don't sort when inserting. Also, we sort and eliminate | |
1558 | duplicates if there is an unsorted section. Typically, this will | |
1559 | only happen once, because we do all insertions before lookups. We | |
1560 | then use bsearch to do a lookup. This also allows lookups to be | |
1561 | fast. So we have fast insertion (O(log N) due to duplicate check), | |
1562 | fast lookup (O(log N)) and one sort (O(N log N) expected time). | |
1563 | Previously, all lookups were O(N) because of the use of the linked | |
1564 | list and also all insertions were O(N) because of the check for | |
1565 | duplicates. There are some complications here because the array | |
1566 | size grows occasionally, which may add an O(N) factor, but this | |
1567 | should be rare. Also, we free the excess array allocation, which | |
1568 | requires a copy which is O(N), but this only happens once. */ | |
1569 | ||
1570 | static struct elf64_ia64_dyn_sym_info * | |
1571 | get_dyn_sym_info (struct elf64_ia64_link_hash_table *ia64_info, | |
1572 | struct elf_link_hash_entry *h, bfd *abfd, | |
1573 | const Elf_Internal_Rela *rel, bfd_boolean create) | |
1574 | { | |
1575 | struct elf64_ia64_dyn_sym_info **info_p, *info, *dyn_i, key; | |
1576 | unsigned int *count_p, *sorted_count_p, *size_p; | |
1577 | unsigned int count, sorted_count, size; | |
1578 | bfd_vma addend = rel ? rel->r_addend : 0; | |
1579 | bfd_size_type amt; | |
1580 | ||
1581 | if (h) | |
1582 | { | |
1583 | struct elf64_ia64_link_hash_entry *global_h; | |
1584 | ||
1585 | global_h = (struct elf64_ia64_link_hash_entry *) h; | |
1586 | info_p = &global_h->info; | |
1587 | count_p = &global_h->count; | |
1588 | sorted_count_p = &global_h->sorted_count; | |
1589 | size_p = &global_h->size; | |
1590 | } | |
1591 | else | |
1592 | { | |
1593 | struct elf64_ia64_local_hash_entry *loc_h; | |
1594 | ||
1595 | loc_h = get_local_sym_hash (ia64_info, abfd, rel, create); | |
1596 | if (!loc_h) | |
1597 | { | |
1598 | BFD_ASSERT (!create); | |
1599 | return NULL; | |
1600 | } | |
1601 | ||
1602 | info_p = &loc_h->info; | |
1603 | count_p = &loc_h->count; | |
1604 | sorted_count_p = &loc_h->sorted_count; | |
1605 | size_p = &loc_h->size; | |
1606 | } | |
1607 | ||
1608 | count = *count_p; | |
1609 | sorted_count = *sorted_count_p; | |
1610 | size = *size_p; | |
1611 | info = *info_p; | |
1612 | if (create) | |
1613 | { | |
1614 | /* When we create the array, we don't check for duplicates, | |
1615 | except in the previously sorted section if one exists, and | |
1616 | against the last inserted entry. This allows insertions to | |
1617 | be fast. */ | |
1618 | if (info) | |
1619 | { | |
1620 | if (sorted_count) | |
1621 | { | |
1622 | /* Try bsearch first on the sorted section. */ | |
1623 | key.addend = addend; | |
1624 | dyn_i = bsearch (&key, info, sorted_count, | |
1625 | sizeof (*info), addend_compare); | |
1626 | ||
1627 | if (dyn_i) | |
1628 | { | |
1629 | return dyn_i; | |
1630 | } | |
1631 | } | |
1632 | ||
1633 | /* Do a quick check for the last inserted entry. */ | |
1634 | dyn_i = info + count - 1; | |
1635 | if (dyn_i->addend == addend) | |
1636 | { | |
1637 | return dyn_i; | |
1638 | } | |
1639 | } | |
1640 | ||
1641 | if (size == 0) | |
1642 | { | |
1643 | /* It is the very first element. We create the array of size | |
1644 | 1. */ | |
1645 | size = 1; | |
1646 | amt = size * sizeof (*info); | |
1647 | info = bfd_malloc (amt); | |
1648 | } | |
1649 | else if (size <= count) | |
1650 | { | |
1651 | /* We double the array size every time when we reach the | |
1652 | size limit. */ | |
1653 | size += size; | |
1654 | amt = size * sizeof (*info); | |
1655 | info = bfd_realloc (info, amt); | |
1656 | } | |
1657 | else | |
1658 | goto has_space; | |
1659 | ||
1660 | if (info == NULL) | |
1661 | return NULL; | |
1662 | *size_p = size; | |
1663 | *info_p = info; | |
1664 | ||
1665 | has_space: | |
1666 | /* Append the new one to the array. */ | |
1667 | dyn_i = info + count; | |
1668 | memset (dyn_i, 0, sizeof (*dyn_i)); | |
1669 | dyn_i->got_offset = (bfd_vma) -1; | |
1670 | dyn_i->addend = addend; | |
1671 | ||
1672 | /* We increment count only since the new ones are unsorted and | |
1673 | may have duplicate. */ | |
1674 | (*count_p)++; | |
1675 | } | |
1676 | else | |
1677 | { | |
1678 | /* It is a lookup without insertion. Sort array if part of the | |
1679 | array isn't sorted. */ | |
1680 | if (count != sorted_count) | |
1681 | { | |
1682 | count = sort_dyn_sym_info (info, count); | |
1683 | *count_p = count; | |
1684 | *sorted_count_p = count; | |
1685 | } | |
1686 | ||
1687 | /* Free unused memory. */ | |
1688 | if (size != count) | |
1689 | { | |
1690 | amt = count * sizeof (*info); | |
1691 | info = bfd_malloc (amt); | |
1692 | if (info != NULL) | |
1693 | { | |
1694 | memcpy (info, *info_p, amt); | |
1695 | free (*info_p); | |
1696 | *size_p = count; | |
1697 | *info_p = info; | |
1698 | } | |
1699 | } | |
1700 | ||
1701 | key.addend = addend; | |
1702 | dyn_i = bsearch (&key, info, count, | |
1703 | sizeof (*info), addend_compare); | |
1704 | } | |
1705 | ||
1706 | return dyn_i; | |
1707 | } | |
1708 | ||
1709 | static asection * | |
1710 | get_got (bfd *abfd, struct elf64_ia64_link_hash_table *ia64_info) | |
1711 | { | |
1712 | asection *got; | |
1713 | bfd *dynobj; | |
1714 | ||
1715 | got = ia64_info->root.sgot; | |
1716 | if (!got) | |
1717 | { | |
1718 | flagword flags; | |
1719 | ||
1720 | dynobj = ia64_info->root.dynobj; | |
1721 | if (!dynobj) | |
1722 | ia64_info->root.dynobj = dynobj = abfd; | |
1723 | ||
1724 | /* The .got section is always aligned at 8 bytes. */ | |
1725 | flags = get_elf_backend_data (dynobj)->dynamic_sec_flags; | |
3d4d4302 AM |
1726 | got = bfd_make_section_anyway_with_flags (dynobj, ".got", |
1727 | flags | SEC_SMALL_DATA); | |
202e2356 NC |
1728 | if (got == NULL |
1729 | || !bfd_set_section_alignment (dynobj, got, 3)) | |
1730 | return NULL; | |
1731 | ia64_info->root.sgot = got; | |
1732 | } | |
1733 | ||
1734 | return got; | |
1735 | } | |
1736 | ||
1737 | /* Create function descriptor section (.opd). This section is called .opd | |
1738 | because it contains "official procedure descriptors". The "official" | |
1739 | refers to the fact that these descriptors are used when taking the address | |
1740 | of a procedure, thus ensuring a unique address for each procedure. */ | |
1741 | ||
1742 | static asection * | |
1743 | get_fptr (bfd *abfd, struct bfd_link_info *info, | |
1744 | struct elf64_ia64_link_hash_table *ia64_info) | |
1745 | { | |
1746 | asection *fptr; | |
1747 | bfd *dynobj; | |
1748 | ||
1749 | fptr = ia64_info->fptr_sec; | |
1750 | if (!fptr) | |
1751 | { | |
1752 | dynobj = ia64_info->root.dynobj; | |
1753 | if (!dynobj) | |
1754 | ia64_info->root.dynobj = dynobj = abfd; | |
1755 | ||
3d4d4302 AM |
1756 | fptr = bfd_make_section_anyway_with_flags (dynobj, ".opd", |
1757 | (SEC_ALLOC | |
1758 | | SEC_LOAD | |
1759 | | SEC_HAS_CONTENTS | |
1760 | | SEC_IN_MEMORY | |
0e1862bb | 1761 | | (bfd_link_pie (info) ? 0 |
3d4d4302 AM |
1762 | : SEC_READONLY) |
1763 | | SEC_LINKER_CREATED)); | |
202e2356 NC |
1764 | if (!fptr |
1765 | || !bfd_set_section_alignment (dynobj, fptr, 4)) | |
1766 | { | |
1767 | BFD_ASSERT (0); | |
1768 | return NULL; | |
1769 | } | |
1770 | ||
1771 | ia64_info->fptr_sec = fptr; | |
1772 | ||
0e1862bb | 1773 | if (bfd_link_pie (info)) |
202e2356 NC |
1774 | { |
1775 | asection *fptr_rel; | |
3d4d4302 AM |
1776 | fptr_rel = bfd_make_section_anyway_with_flags (dynobj, ".rela.opd", |
1777 | (SEC_ALLOC | SEC_LOAD | |
1778 | | SEC_HAS_CONTENTS | |
1779 | | SEC_IN_MEMORY | |
1780 | | SEC_LINKER_CREATED | |
1781 | | SEC_READONLY)); | |
202e2356 NC |
1782 | if (fptr_rel == NULL |
1783 | || !bfd_set_section_alignment (dynobj, fptr_rel, 3)) | |
1784 | { | |
1785 | BFD_ASSERT (0); | |
1786 | return NULL; | |
1787 | } | |
1788 | ||
1789 | ia64_info->rel_fptr_sec = fptr_rel; | |
1790 | } | |
1791 | } | |
1792 | ||
1793 | return fptr; | |
1794 | } | |
1795 | ||
1796 | static asection * | |
1797 | get_pltoff (bfd *abfd, struct elf64_ia64_link_hash_table *ia64_info) | |
1798 | { | |
1799 | asection *pltoff; | |
1800 | bfd *dynobj; | |
1801 | ||
1802 | pltoff = ia64_info->pltoff_sec; | |
1803 | if (!pltoff) | |
1804 | { | |
1805 | dynobj = ia64_info->root.dynobj; | |
1806 | if (!dynobj) | |
1807 | ia64_info->root.dynobj = dynobj = abfd; | |
1808 | ||
3d4d4302 AM |
1809 | pltoff = bfd_make_section_anyway_with_flags (dynobj, |
1810 | ELF_STRING_ia64_pltoff, | |
1811 | (SEC_ALLOC | |
1812 | | SEC_LOAD | |
1813 | | SEC_HAS_CONTENTS | |
1814 | | SEC_IN_MEMORY | |
1815 | | SEC_SMALL_DATA | |
1816 | | SEC_LINKER_CREATED)); | |
202e2356 NC |
1817 | if (!pltoff |
1818 | || !bfd_set_section_alignment (dynobj, pltoff, 4)) | |
1819 | { | |
1820 | BFD_ASSERT (0); | |
1821 | return NULL; | |
1822 | } | |
1823 | ||
1824 | ia64_info->pltoff_sec = pltoff; | |
1825 | } | |
1826 | ||
1827 | return pltoff; | |
1828 | } | |
1829 | ||
1830 | static asection * | |
1831 | get_reloc_section (bfd *abfd, | |
1832 | struct elf64_ia64_link_hash_table *ia64_info, | |
1833 | asection *sec, bfd_boolean create) | |
1834 | { | |
1835 | const char *srel_name; | |
1836 | asection *srel; | |
1837 | bfd *dynobj; | |
1838 | ||
1839 | srel_name = (bfd_elf_string_from_elf_section | |
1840 | (abfd, elf_elfheader(abfd)->e_shstrndx, | |
1841 | _bfd_elf_single_rel_hdr (sec)->sh_name)); | |
1842 | if (srel_name == NULL) | |
1843 | return NULL; | |
1844 | ||
1845 | BFD_ASSERT ((CONST_STRNEQ (srel_name, ".rela") | |
1846 | && strcmp (bfd_get_section_name (abfd, sec), | |
1847 | srel_name+5) == 0) | |
1848 | || (CONST_STRNEQ (srel_name, ".rel") | |
1849 | && strcmp (bfd_get_section_name (abfd, sec), | |
1850 | srel_name+4) == 0)); | |
1851 | ||
1852 | dynobj = ia64_info->root.dynobj; | |
1853 | if (!dynobj) | |
1854 | ia64_info->root.dynobj = dynobj = abfd; | |
1855 | ||
3d4d4302 | 1856 | srel = bfd_get_linker_section (dynobj, srel_name); |
202e2356 NC |
1857 | if (srel == NULL && create) |
1858 | { | |
3d4d4302 AM |
1859 | srel = bfd_make_section_anyway_with_flags (dynobj, srel_name, |
1860 | (SEC_ALLOC | SEC_LOAD | |
1861 | | SEC_HAS_CONTENTS | |
1862 | | SEC_IN_MEMORY | |
1863 | | SEC_LINKER_CREATED | |
1864 | | SEC_READONLY)); | |
202e2356 NC |
1865 | if (srel == NULL |
1866 | || !bfd_set_section_alignment (dynobj, srel, 3)) | |
1867 | return NULL; | |
1868 | } | |
1869 | ||
1870 | return srel; | |
1871 | } | |
1872 | ||
1873 | static bfd_boolean | |
1874 | count_dyn_reloc (bfd *abfd, struct elf64_ia64_dyn_sym_info *dyn_i, | |
1875 | asection *srel, int type) | |
1876 | { | |
1877 | struct elf64_ia64_dyn_reloc_entry *rent; | |
1878 | ||
1879 | for (rent = dyn_i->reloc_entries; rent; rent = rent->next) | |
1880 | if (rent->srel == srel && rent->type == type) | |
1881 | break; | |
1882 | ||
1883 | if (!rent) | |
1884 | { | |
1885 | rent = ((struct elf64_ia64_dyn_reloc_entry *) | |
1886 | bfd_alloc (abfd, (bfd_size_type) sizeof (*rent))); | |
1887 | if (!rent) | |
1888 | return FALSE; | |
1889 | ||
1890 | rent->next = dyn_i->reloc_entries; | |
1891 | rent->srel = srel; | |
1892 | rent->type = type; | |
1893 | rent->count = 0; | |
1894 | dyn_i->reloc_entries = rent; | |
1895 | } | |
1896 | rent->count++; | |
1897 | ||
1898 | return TRUE; | |
1899 | } | |
1900 | ||
1901 | static bfd_boolean | |
1902 | elf64_ia64_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
1903 | asection *sec, | |
1904 | const Elf_Internal_Rela *relocs) | |
1905 | { | |
1906 | struct elf64_ia64_link_hash_table *ia64_info; | |
1907 | const Elf_Internal_Rela *relend; | |
1908 | Elf_Internal_Shdr *symtab_hdr; | |
1909 | const Elf_Internal_Rela *rel; | |
1910 | asection *got, *fptr, *srel, *pltoff; | |
1911 | enum { | |
1912 | NEED_GOT = 1, | |
1913 | NEED_GOTX = 2, | |
1914 | NEED_FPTR = 4, | |
1915 | NEED_PLTOFF = 8, | |
1916 | NEED_MIN_PLT = 16, | |
1917 | NEED_FULL_PLT = 32, | |
1918 | NEED_DYNREL = 64, | |
1919 | NEED_LTOFF_FPTR = 128 | |
1920 | }; | |
1921 | int need_entry; | |
1922 | struct elf_link_hash_entry *h; | |
1923 | unsigned long r_symndx; | |
1924 | bfd_boolean maybe_dynamic; | |
1925 | ||
0e1862bb | 1926 | if (bfd_link_relocatable (info)) |
202e2356 NC |
1927 | return TRUE; |
1928 | ||
1929 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1930 | ia64_info = elf64_ia64_hash_table (info); | |
1931 | if (ia64_info == NULL) | |
1932 | return FALSE; | |
1933 | ||
1934 | got = fptr = srel = pltoff = NULL; | |
1935 | ||
1936 | relend = relocs + sec->reloc_count; | |
1937 | ||
1938 | /* We scan relocations first to create dynamic relocation arrays. We | |
1939 | modified get_dyn_sym_info to allow fast insertion and support fast | |
1940 | lookup in the next loop. */ | |
1941 | for (rel = relocs; rel < relend; ++rel) | |
1942 | { | |
1943 | r_symndx = ELF64_R_SYM (rel->r_info); | |
1944 | if (r_symndx >= symtab_hdr->sh_info) | |
1945 | { | |
1946 | long indx = r_symndx - symtab_hdr->sh_info; | |
1947 | h = elf_sym_hashes (abfd)[indx]; | |
1948 | while (h->root.type == bfd_link_hash_indirect | |
1949 | || h->root.type == bfd_link_hash_warning) | |
1950 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1951 | } | |
1952 | else | |
1953 | h = NULL; | |
1954 | ||
1955 | /* We can only get preliminary data on whether a symbol is | |
1956 | locally or externally defined, as not all of the input files | |
1957 | have yet been processed. Do something with what we know, as | |
1958 | this may help reduce memory usage and processing time later. */ | |
0e1862bb | 1959 | maybe_dynamic = (h && ((!bfd_link_executable (info) |
202e2356 NC |
1960 | && (!SYMBOLIC_BIND (info, h) |
1961 | || info->unresolved_syms_in_shared_libs == RM_IGNORE)) | |
1962 | || !h->def_regular | |
1963 | || h->root.type == bfd_link_hash_defweak)); | |
1964 | ||
1965 | need_entry = 0; | |
1966 | switch (ELF64_R_TYPE (rel->r_info)) | |
1967 | { | |
1968 | case R_IA64_TPREL64MSB: | |
1969 | case R_IA64_TPREL64LSB: | |
1970 | case R_IA64_LTOFF_TPREL22: | |
1971 | case R_IA64_DTPREL32MSB: | |
1972 | case R_IA64_DTPREL32LSB: | |
1973 | case R_IA64_DTPREL64MSB: | |
1974 | case R_IA64_DTPREL64LSB: | |
1975 | case R_IA64_LTOFF_DTPREL22: | |
1976 | case R_IA64_DTPMOD64MSB: | |
1977 | case R_IA64_DTPMOD64LSB: | |
1978 | case R_IA64_LTOFF_DTPMOD22: | |
1979 | abort (); | |
1980 | break; | |
1981 | ||
1982 | case R_IA64_IPLTMSB: | |
1983 | case R_IA64_IPLTLSB: | |
1984 | break; | |
1985 | ||
1986 | case R_IA64_LTOFF_FPTR22: | |
1987 | case R_IA64_LTOFF_FPTR64I: | |
1988 | case R_IA64_LTOFF_FPTR32MSB: | |
1989 | case R_IA64_LTOFF_FPTR32LSB: | |
1990 | case R_IA64_LTOFF_FPTR64MSB: | |
1991 | case R_IA64_LTOFF_FPTR64LSB: | |
1992 | need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR; | |
1993 | break; | |
1994 | ||
1995 | case R_IA64_FPTR64I: | |
1996 | case R_IA64_FPTR32MSB: | |
1997 | case R_IA64_FPTR32LSB: | |
1998 | case R_IA64_FPTR64MSB: | |
1999 | case R_IA64_FPTR64LSB: | |
0e1862bb | 2000 | if (bfd_link_pic (info) || h) |
202e2356 NC |
2001 | need_entry = NEED_FPTR | NEED_DYNREL; |
2002 | else | |
2003 | need_entry = NEED_FPTR; | |
2004 | break; | |
2005 | ||
2006 | case R_IA64_LTOFF22: | |
2007 | case R_IA64_LTOFF64I: | |
2008 | need_entry = NEED_GOT; | |
2009 | break; | |
2010 | ||
2011 | case R_IA64_LTOFF22X: | |
2012 | need_entry = NEED_GOTX; | |
2013 | break; | |
2014 | ||
2015 | case R_IA64_PLTOFF22: | |
2016 | case R_IA64_PLTOFF64I: | |
2017 | case R_IA64_PLTOFF64MSB: | |
2018 | case R_IA64_PLTOFF64LSB: | |
2019 | need_entry = NEED_PLTOFF; | |
2020 | if (h) | |
2021 | { | |
2022 | if (maybe_dynamic) | |
2023 | need_entry |= NEED_MIN_PLT; | |
2024 | } | |
2025 | else | |
2026 | { | |
2027 | (*info->callbacks->warning) | |
2028 | (info, _("@pltoff reloc against local symbol"), 0, | |
2029 | abfd, 0, (bfd_vma) 0); | |
2030 | } | |
2031 | break; | |
2032 | ||
2033 | case R_IA64_PCREL21B: | |
2034 | case R_IA64_PCREL60B: | |
2035 | /* Depending on where this symbol is defined, we may or may not | |
2036 | need a full plt entry. Only skip if we know we'll not need | |
2037 | the entry -- static or symbolic, and the symbol definition | |
2038 | has already been seen. */ | |
2039 | if (maybe_dynamic && rel->r_addend == 0) | |
2040 | need_entry = NEED_FULL_PLT; | |
2041 | break; | |
2042 | ||
2043 | case R_IA64_IMM14: | |
2044 | case R_IA64_IMM22: | |
2045 | case R_IA64_IMM64: | |
2046 | case R_IA64_DIR32MSB: | |
2047 | case R_IA64_DIR32LSB: | |
2048 | case R_IA64_DIR64MSB: | |
2049 | case R_IA64_DIR64LSB: | |
2050 | /* Shared objects will always need at least a REL relocation. */ | |
0e1862bb | 2051 | if (bfd_link_pic (info) || maybe_dynamic) |
202e2356 NC |
2052 | need_entry = NEED_DYNREL; |
2053 | break; | |
2054 | ||
2055 | case R_IA64_PCREL22: | |
2056 | case R_IA64_PCREL64I: | |
2057 | case R_IA64_PCREL32MSB: | |
2058 | case R_IA64_PCREL32LSB: | |
2059 | case R_IA64_PCREL64MSB: | |
2060 | case R_IA64_PCREL64LSB: | |
2061 | if (maybe_dynamic) | |
2062 | need_entry = NEED_DYNREL; | |
2063 | break; | |
2064 | } | |
2065 | ||
2066 | if (!need_entry) | |
2067 | continue; | |
2068 | ||
2069 | if ((need_entry & NEED_FPTR) != 0 | |
2070 | && rel->r_addend) | |
2071 | { | |
2072 | (*info->callbacks->warning) | |
2073 | (info, _("non-zero addend in @fptr reloc"), 0, | |
2074 | abfd, 0, (bfd_vma) 0); | |
2075 | } | |
2076 | ||
2077 | if (get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE) == NULL) | |
2078 | return FALSE; | |
2079 | } | |
2080 | ||
2081 | /* Now, we only do lookup without insertion, which is very fast | |
2082 | with the modified get_dyn_sym_info. */ | |
2083 | for (rel = relocs; rel < relend; ++rel) | |
2084 | { | |
2085 | struct elf64_ia64_dyn_sym_info *dyn_i; | |
2086 | int dynrel_type = R_IA64_NONE; | |
2087 | ||
2088 | r_symndx = ELF64_R_SYM (rel->r_info); | |
2089 | if (r_symndx >= symtab_hdr->sh_info) | |
2090 | { | |
2091 | /* We're dealing with a global symbol -- find its hash entry | |
2092 | and mark it as being referenced. */ | |
2093 | long indx = r_symndx - symtab_hdr->sh_info; | |
2094 | h = elf_sym_hashes (abfd)[indx]; | |
2095 | while (h->root.type == bfd_link_hash_indirect | |
2096 | || h->root.type == bfd_link_hash_warning) | |
2097 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2098 | ||
81fbe831 AM |
2099 | /* PR15323, ref flags aren't set for references in the same |
2100 | object. */ | |
2101 | h->root.non_ir_ref = 1; | |
202e2356 NC |
2102 | h->ref_regular = 1; |
2103 | } | |
2104 | else | |
2105 | h = NULL; | |
2106 | ||
2107 | /* We can only get preliminary data on whether a symbol is | |
2108 | locally or externally defined, as not all of the input files | |
2109 | have yet been processed. Do something with what we know, as | |
2110 | this may help reduce memory usage and processing time later. */ | |
0e1862bb | 2111 | maybe_dynamic = (h && ((!bfd_link_executable (info) |
202e2356 NC |
2112 | && (!SYMBOLIC_BIND (info, h) |
2113 | || info->unresolved_syms_in_shared_libs == RM_IGNORE)) | |
2114 | || !h->def_regular | |
2115 | || h->root.type == bfd_link_hash_defweak)); | |
2116 | ||
2117 | need_entry = 0; | |
2118 | switch (ELF64_R_TYPE (rel->r_info)) | |
2119 | { | |
2120 | case R_IA64_TPREL64MSB: | |
2121 | case R_IA64_TPREL64LSB: | |
2122 | case R_IA64_LTOFF_TPREL22: | |
2123 | case R_IA64_DTPREL32MSB: | |
2124 | case R_IA64_DTPREL32LSB: | |
2125 | case R_IA64_DTPREL64MSB: | |
2126 | case R_IA64_DTPREL64LSB: | |
2127 | case R_IA64_LTOFF_DTPREL22: | |
2128 | case R_IA64_DTPMOD64MSB: | |
2129 | case R_IA64_DTPMOD64LSB: | |
2130 | case R_IA64_LTOFF_DTPMOD22: | |
2131 | abort (); | |
2132 | break; | |
2133 | ||
2134 | case R_IA64_LTOFF_FPTR22: | |
2135 | case R_IA64_LTOFF_FPTR64I: | |
2136 | case R_IA64_LTOFF_FPTR32MSB: | |
2137 | case R_IA64_LTOFF_FPTR32LSB: | |
2138 | case R_IA64_LTOFF_FPTR64MSB: | |
2139 | case R_IA64_LTOFF_FPTR64LSB: | |
2140 | need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR; | |
2141 | break; | |
2142 | ||
2143 | case R_IA64_FPTR64I: | |
2144 | case R_IA64_FPTR32MSB: | |
2145 | case R_IA64_FPTR32LSB: | |
2146 | case R_IA64_FPTR64MSB: | |
2147 | case R_IA64_FPTR64LSB: | |
0e1862bb | 2148 | if (bfd_link_pic (info) || h) |
202e2356 NC |
2149 | need_entry = NEED_FPTR | NEED_DYNREL; |
2150 | else | |
2151 | need_entry = NEED_FPTR; | |
2152 | dynrel_type = R_IA64_FPTR64LSB; | |
2153 | break; | |
2154 | ||
2155 | case R_IA64_LTOFF22: | |
2156 | case R_IA64_LTOFF64I: | |
2157 | need_entry = NEED_GOT; | |
2158 | break; | |
2159 | ||
2160 | case R_IA64_LTOFF22X: | |
2161 | need_entry = NEED_GOTX; | |
2162 | break; | |
2163 | ||
2164 | case R_IA64_PLTOFF22: | |
2165 | case R_IA64_PLTOFF64I: | |
2166 | case R_IA64_PLTOFF64MSB: | |
2167 | case R_IA64_PLTOFF64LSB: | |
2168 | need_entry = NEED_PLTOFF; | |
2169 | if (h) | |
2170 | { | |
2171 | if (maybe_dynamic) | |
2172 | need_entry |= NEED_MIN_PLT; | |
2173 | } | |
2174 | break; | |
2175 | ||
2176 | case R_IA64_PCREL21B: | |
2177 | case R_IA64_PCREL60B: | |
2178 | /* Depending on where this symbol is defined, we may or may not | |
2179 | need a full plt entry. Only skip if we know we'll not need | |
2180 | the entry -- static or symbolic, and the symbol definition | |
2181 | has already been seen. */ | |
2182 | if (maybe_dynamic && rel->r_addend == 0) | |
2183 | need_entry = NEED_FULL_PLT; | |
2184 | break; | |
2185 | ||
2186 | case R_IA64_IMM14: | |
2187 | case R_IA64_IMM22: | |
2188 | case R_IA64_IMM64: | |
2189 | case R_IA64_DIR32MSB: | |
2190 | case R_IA64_DIR32LSB: | |
2191 | case R_IA64_DIR64MSB: | |
2192 | case R_IA64_DIR64LSB: | |
2193 | /* Shared objects will always need at least a REL relocation. */ | |
0e1862bb | 2194 | if (bfd_link_pic (info) || maybe_dynamic) |
202e2356 NC |
2195 | need_entry = NEED_DYNREL; |
2196 | dynrel_type = R_IA64_DIR64LSB; | |
2197 | break; | |
2198 | ||
2199 | case R_IA64_IPLTMSB: | |
2200 | case R_IA64_IPLTLSB: | |
2201 | break; | |
2202 | ||
2203 | case R_IA64_PCREL22: | |
2204 | case R_IA64_PCREL64I: | |
2205 | case R_IA64_PCREL32MSB: | |
2206 | case R_IA64_PCREL32LSB: | |
2207 | case R_IA64_PCREL64MSB: | |
2208 | case R_IA64_PCREL64LSB: | |
2209 | if (maybe_dynamic) | |
2210 | need_entry = NEED_DYNREL; | |
2211 | dynrel_type = R_IA64_PCREL64LSB; | |
2212 | break; | |
2213 | } | |
2214 | ||
2215 | if (!need_entry) | |
2216 | continue; | |
2217 | ||
2218 | dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, FALSE); | |
2219 | ||
2220 | /* Record whether or not this is a local symbol. */ | |
2221 | dyn_i->h = h; | |
2222 | ||
2223 | /* Create what's needed. */ | |
2224 | if (need_entry & (NEED_GOT | NEED_GOTX)) | |
2225 | { | |
2226 | if (!got) | |
2227 | { | |
2228 | got = get_got (abfd, ia64_info); | |
2229 | if (!got) | |
2230 | return FALSE; | |
2231 | } | |
2232 | if (need_entry & NEED_GOT) | |
2233 | dyn_i->want_got = 1; | |
2234 | if (need_entry & NEED_GOTX) | |
2235 | dyn_i->want_gotx = 1; | |
2236 | } | |
2237 | if (need_entry & NEED_FPTR) | |
2238 | { | |
2239 | /* Create the .opd section. */ | |
2240 | if (!fptr) | |
2241 | { | |
2242 | fptr = get_fptr (abfd, info, ia64_info); | |
2243 | if (!fptr) | |
2244 | return FALSE; | |
2245 | } | |
2246 | dyn_i->want_fptr = 1; | |
2247 | } | |
2248 | if (need_entry & NEED_LTOFF_FPTR) | |
2249 | dyn_i->want_ltoff_fptr = 1; | |
2250 | if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT)) | |
2251 | { | |
2252 | if (!ia64_info->root.dynobj) | |
2253 | ia64_info->root.dynobj = abfd; | |
2254 | h->needs_plt = 1; | |
2255 | dyn_i->want_plt = 1; | |
2256 | } | |
2257 | if (need_entry & NEED_FULL_PLT) | |
2258 | dyn_i->want_plt2 = 1; | |
2259 | if (need_entry & NEED_PLTOFF) | |
2260 | { | |
2261 | /* This is needed here, in case @pltoff is used in a non-shared | |
2262 | link. */ | |
2263 | if (!pltoff) | |
2264 | { | |
2265 | pltoff = get_pltoff (abfd, ia64_info); | |
2266 | if (!pltoff) | |
2267 | return FALSE; | |
2268 | } | |
2269 | ||
2270 | dyn_i->want_pltoff = 1; | |
2271 | } | |
2272 | if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC)) | |
2273 | { | |
2274 | if (!srel) | |
2275 | { | |
2276 | srel = get_reloc_section (abfd, ia64_info, sec, TRUE); | |
2277 | if (!srel) | |
2278 | return FALSE; | |
2279 | } | |
2280 | if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type)) | |
2281 | return FALSE; | |
2282 | } | |
2283 | } | |
2284 | ||
2285 | return TRUE; | |
2286 | } | |
2287 | ||
2288 | /* For cleanliness, and potentially faster dynamic loading, allocate | |
2289 | external GOT entries first. */ | |
2290 | ||
2291 | static bfd_boolean | |
2292 | allocate_global_data_got (struct elf64_ia64_dyn_sym_info *dyn_i, | |
2293 | void * data) | |
2294 | { | |
2295 | struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; | |
2296 | ||
2297 | if ((dyn_i->want_got || dyn_i->want_gotx) | |
2298 | && ! dyn_i->want_fptr | |
2299 | && elf64_ia64_dynamic_symbol_p (dyn_i->h)) | |
2300 | { | |
2301 | /* GOT entry with FPTR is done by allocate_global_fptr_got. */ | |
2302 | dyn_i->got_offset = x->ofs; | |
2303 | x->ofs += 8; | |
2304 | } | |
2305 | return TRUE; | |
2306 | } | |
2307 | ||
2308 | /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */ | |
2309 | ||
2310 | static bfd_boolean | |
2311 | allocate_global_fptr_got (struct elf64_ia64_dyn_sym_info *dyn_i, | |
2312 | void * data) | |
2313 | { | |
2314 | struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; | |
2315 | ||
2316 | if (dyn_i->want_got | |
2317 | && dyn_i->want_fptr | |
2318 | && elf64_ia64_dynamic_symbol_p (dyn_i->h)) | |
2319 | { | |
2320 | dyn_i->got_offset = x->ofs; | |
2321 | x->ofs += 8; | |
2322 | } | |
2323 | return TRUE; | |
2324 | } | |
2325 | ||
2326 | /* Lastly, allocate all the GOT entries for local data. */ | |
2327 | ||
2328 | static bfd_boolean | |
2329 | allocate_local_got (struct elf64_ia64_dyn_sym_info *dyn_i, | |
2330 | void * data) | |
2331 | { | |
2332 | struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *) data; | |
2333 | ||
2334 | if ((dyn_i->want_got || dyn_i->want_gotx) | |
2335 | && !elf64_ia64_dynamic_symbol_p (dyn_i->h)) | |
2336 | { | |
2337 | dyn_i->got_offset = x->ofs; | |
2338 | x->ofs += 8; | |
2339 | } | |
2340 | return TRUE; | |
2341 | } | |
2342 | ||
2343 | /* Allocate function descriptors. We can do these for every function | |
2344 | in a main executable that is not exported. */ | |
2345 | ||
2346 | static bfd_boolean | |
2347 | allocate_fptr (struct elf64_ia64_dyn_sym_info *dyn_i, void * data) | |
2348 | { | |
2349 | struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *) data; | |
2350 | ||
2351 | if (dyn_i->want_fptr) | |
2352 | { | |
2353 | struct elf_link_hash_entry *h = dyn_i->h; | |
2354 | ||
2355 | if (h) | |
2356 | while (h->root.type == bfd_link_hash_indirect | |
2357 | || h->root.type == bfd_link_hash_warning) | |
2358 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2359 | ||
2360 | if (h == NULL || !h->def_dynamic) | |
2361 | { | |
2362 | /* A non dynamic symbol. */ | |
2363 | dyn_i->fptr_offset = x->ofs; | |
2364 | x->ofs += 16; | |
2365 | } | |
2366 | else | |
2367 | dyn_i->want_fptr = 0; | |
2368 | } | |
2369 | return TRUE; | |
2370 | } | |
2371 | ||
2372 | /* Allocate all the minimal PLT entries. */ | |
2373 | ||
2374 | static bfd_boolean | |
2375 | allocate_plt_entries (struct elf64_ia64_dyn_sym_info *dyn_i, | |
2376 | void * data ATTRIBUTE_UNUSED) | |
2377 | { | |
2378 | if (dyn_i->want_plt) | |
2379 | { | |
2380 | struct elf_link_hash_entry *h = dyn_i->h; | |
2381 | ||
2382 | if (h) | |
2383 | while (h->root.type == bfd_link_hash_indirect | |
2384 | || h->root.type == bfd_link_hash_warning) | |
2385 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2386 | ||
2387 | /* ??? Versioned symbols seem to lose NEEDS_PLT. */ | |
2388 | if (elf64_ia64_dynamic_symbol_p (h)) | |
2389 | { | |
2390 | dyn_i->want_pltoff = 1; | |
2391 | } | |
2392 | else | |
2393 | { | |
2394 | dyn_i->want_plt = 0; | |
2395 | dyn_i->want_plt2 = 0; | |
2396 | } | |
2397 | } | |
2398 | return TRUE; | |
2399 | } | |
2400 | ||
2401 | /* Allocate all the full PLT entries. */ | |
2402 | ||
2403 | static bfd_boolean | |
2404 | allocate_plt2_entries (struct elf64_ia64_dyn_sym_info *dyn_i, | |
2405 | void * data) | |
2406 | { | |
2407 | struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; | |
2408 | ||
2409 | if (dyn_i->want_plt2) | |
2410 | { | |
2411 | struct elf_link_hash_entry *h = dyn_i->h; | |
2412 | bfd_size_type ofs = x->ofs; | |
2413 | ||
2414 | dyn_i->plt2_offset = ofs; | |
2415 | x->ofs = ofs + PLT_FULL_ENTRY_SIZE; | |
2416 | ||
2417 | while (h->root.type == bfd_link_hash_indirect | |
2418 | || h->root.type == bfd_link_hash_warning) | |
2419 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2420 | dyn_i->h->plt.offset = ofs; | |
2421 | } | |
2422 | return TRUE; | |
2423 | } | |
2424 | ||
2425 | /* Allocate all the PLTOFF entries requested by relocations and | |
2426 | plt entries. We can't share space with allocated FPTR entries, | |
2427 | because the latter are not necessarily addressable by the GP. | |
2428 | ??? Relaxation might be able to determine that they are. */ | |
2429 | ||
2430 | static bfd_boolean | |
2431 | allocate_pltoff_entries (struct elf64_ia64_dyn_sym_info *dyn_i, | |
2432 | void * data) | |
2433 | { | |
2434 | struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; | |
2435 | ||
2436 | if (dyn_i->want_pltoff) | |
2437 | { | |
2438 | dyn_i->pltoff_offset = x->ofs; | |
2439 | x->ofs += 16; | |
2440 | } | |
2441 | return TRUE; | |
2442 | } | |
2443 | ||
2444 | /* Allocate dynamic relocations for those symbols that turned out | |
2445 | to be dynamic. */ | |
2446 | ||
2447 | static bfd_boolean | |
2448 | allocate_dynrel_entries (struct elf64_ia64_dyn_sym_info *dyn_i, | |
2449 | void * data) | |
2450 | { | |
2451 | struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; | |
2452 | struct elf64_ia64_link_hash_table *ia64_info; | |
2453 | struct elf64_ia64_dyn_reloc_entry *rent; | |
2454 | bfd_boolean dynamic_symbol, shared, resolved_zero; | |
2455 | struct elf64_ia64_link_hash_entry *h_ia64; | |
2456 | ||
2457 | ia64_info = elf64_ia64_hash_table (x->info); | |
2458 | if (ia64_info == NULL) | |
2459 | return FALSE; | |
2460 | ||
2461 | /* Note that this can't be used in relation to FPTR relocs below. */ | |
2462 | dynamic_symbol = elf64_ia64_dynamic_symbol_p (dyn_i->h); | |
2463 | ||
0e1862bb | 2464 | shared = bfd_link_pic (x->info); |
202e2356 NC |
2465 | resolved_zero = (dyn_i->h |
2466 | && ELF_ST_VISIBILITY (dyn_i->h->other) | |
2467 | && dyn_i->h->root.type == bfd_link_hash_undefweak); | |
2468 | ||
2469 | /* Take care of the GOT and PLT relocations. */ | |
2470 | ||
2471 | if ((!resolved_zero | |
2472 | && (dynamic_symbol || shared) | |
2473 | && (dyn_i->want_got || dyn_i->want_gotx)) | |
2474 | || (dyn_i->want_ltoff_fptr | |
2475 | && dyn_i->h | |
2476 | && dyn_i->h->def_dynamic)) | |
2477 | { | |
2478 | /* VMS: FIX64. */ | |
2479 | if (dyn_i->h != NULL && dyn_i->h->def_dynamic) | |
2480 | { | |
2481 | h_ia64 = (struct elf64_ia64_link_hash_entry *) dyn_i->h; | |
2482 | elf_ia64_vms_tdata (h_ia64->shl)->fixups_off += | |
2483 | sizeof (Elf64_External_VMS_IMAGE_FIXUP); | |
2484 | ia64_info->fixups_sec->size += | |
2485 | sizeof (Elf64_External_VMS_IMAGE_FIXUP); | |
2486 | } | |
2487 | } | |
2488 | ||
2489 | if (ia64_info->rel_fptr_sec && dyn_i->want_fptr) | |
2490 | { | |
2491 | /* VMS: only image reloc. */ | |
2492 | if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak) | |
2493 | ia64_info->rel_fptr_sec->size += sizeof (Elf64_External_Rela); | |
2494 | } | |
2495 | ||
2496 | if (!resolved_zero && dyn_i->want_pltoff) | |
2497 | { | |
2498 | /* VMS: FIXFD. */ | |
2499 | if (dyn_i->h != NULL && dyn_i->h->def_dynamic) | |
2500 | { | |
2501 | h_ia64 = (struct elf64_ia64_link_hash_entry *) dyn_i->h; | |
2502 | elf_ia64_vms_tdata (h_ia64->shl)->fixups_off += | |
2503 | sizeof (Elf64_External_VMS_IMAGE_FIXUP); | |
2504 | ia64_info->fixups_sec->size += | |
2505 | sizeof (Elf64_External_VMS_IMAGE_FIXUP); | |
2506 | } | |
2507 | } | |
2508 | ||
2509 | /* Take care of the normal data relocations. */ | |
2510 | ||
2511 | for (rent = dyn_i->reloc_entries; rent; rent = rent->next) | |
2512 | { | |
2513 | int count = rent->count; | |
2514 | ||
2515 | switch (rent->type) | |
2516 | { | |
2517 | case R_IA64_FPTR32LSB: | |
2518 | case R_IA64_FPTR64LSB: | |
2519 | /* Allocate one iff !want_fptr and not PIE, which by this point | |
2520 | will be true only if we're actually allocating one statically | |
2521 | in the main executable. Position independent executables | |
2522 | need a relative reloc. */ | |
0e1862bb | 2523 | if (dyn_i->want_fptr && !bfd_link_pie (x->info)) |
202e2356 NC |
2524 | continue; |
2525 | break; | |
2526 | case R_IA64_PCREL32LSB: | |
2527 | case R_IA64_PCREL64LSB: | |
2528 | if (!dynamic_symbol) | |
2529 | continue; | |
2530 | break; | |
2531 | case R_IA64_DIR32LSB: | |
2532 | case R_IA64_DIR64LSB: | |
2533 | if (!dynamic_symbol && !shared) | |
2534 | continue; | |
2535 | break; | |
2536 | case R_IA64_IPLTLSB: | |
2537 | if (!dynamic_symbol && !shared) | |
2538 | continue; | |
2539 | /* Use two REL relocations for IPLT relocations | |
2540 | against local symbols. */ | |
2541 | if (!dynamic_symbol) | |
2542 | count *= 2; | |
2543 | break; | |
2544 | case R_IA64_DTPREL32LSB: | |
2545 | case R_IA64_TPREL64LSB: | |
2546 | case R_IA64_DTPREL64LSB: | |
2547 | case R_IA64_DTPMOD64LSB: | |
2548 | break; | |
2549 | default: | |
2550 | abort (); | |
2551 | } | |
2552 | ||
2553 | /* Add a fixup. */ | |
2554 | if (!dynamic_symbol) | |
2555 | abort (); | |
2556 | ||
2557 | h_ia64 = (struct elf64_ia64_link_hash_entry *) dyn_i->h; | |
2558 | elf_ia64_vms_tdata (h_ia64->shl)->fixups_off += | |
2559 | sizeof (Elf64_External_VMS_IMAGE_FIXUP); | |
2560 | ia64_info->fixups_sec->size += | |
2561 | sizeof (Elf64_External_VMS_IMAGE_FIXUP); | |
2562 | } | |
2563 | ||
2564 | return TRUE; | |
2565 | } | |
2566 | ||
2567 | static bfd_boolean | |
2568 | elf64_ia64_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2569 | struct elf_link_hash_entry *h) | |
2570 | { | |
2571 | /* ??? Undefined symbols with PLT entries should be re-defined | |
2572 | to be the PLT entry. */ | |
2573 | ||
2574 | /* If this is a weak symbol, and there is a real definition, the | |
2575 | processor independent code will have arranged for us to see the | |
2576 | real definition first, and we can just use the same value. */ | |
2577 | if (h->u.weakdef != NULL) | |
2578 | { | |
2579 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
2580 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
2581 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
2582 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
2583 | return TRUE; | |
2584 | } | |
2585 | ||
2586 | /* If this is a reference to a symbol defined by a dynamic object which | |
2587 | is not a function, we might allocate the symbol in our .dynbss section | |
2588 | and allocate a COPY dynamic relocation. | |
2589 | ||
2590 | But IA-64 code is canonically PIC, so as a rule we can avoid this sort | |
2591 | of hackery. */ | |
2592 | ||
2593 | return TRUE; | |
2594 | } | |
2595 | ||
2596 | static bfd_boolean | |
2597 | elf64_ia64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2598 | struct bfd_link_info *info) | |
2599 | { | |
2600 | struct elf64_ia64_allocate_data data; | |
2601 | struct elf64_ia64_link_hash_table *ia64_info; | |
2602 | asection *sec; | |
2603 | bfd *dynobj; | |
2604 | struct elf_link_hash_table *hash_table; | |
2605 | ||
2606 | hash_table = elf_hash_table (info); | |
2607 | dynobj = hash_table->dynobj; | |
2608 | ia64_info = elf64_ia64_hash_table (info); | |
2609 | if (ia64_info == NULL) | |
2610 | return FALSE; | |
2611 | BFD_ASSERT(dynobj != NULL); | |
2612 | data.info = info; | |
2613 | ||
2614 | /* Allocate the GOT entries. */ | |
2615 | ||
2616 | if (ia64_info->root.sgot) | |
2617 | { | |
2618 | data.ofs = 0; | |
2619 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data); | |
2620 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data); | |
2621 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data); | |
2622 | ia64_info->root.sgot->size = data.ofs; | |
2623 | } | |
2624 | ||
2625 | /* Allocate the FPTR entries. */ | |
2626 | ||
2627 | if (ia64_info->fptr_sec) | |
2628 | { | |
2629 | data.ofs = 0; | |
2630 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data); | |
2631 | ia64_info->fptr_sec->size = data.ofs; | |
2632 | } | |
2633 | ||
2634 | /* Now that we've seen all of the input files, we can decide which | |
2635 | symbols need plt entries. Allocate the minimal PLT entries first. | |
2636 | We do this even though dynamic_sections_created may be FALSE, because | |
2637 | this has the side-effect of clearing want_plt and want_plt2. */ | |
2638 | ||
2639 | data.ofs = 0; | |
2640 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data); | |
2641 | ||
2642 | /* Align the pointer for the plt2 entries. */ | |
2643 | data.ofs = (data.ofs + 31) & (bfd_vma) -32; | |
2644 | ||
2645 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data); | |
2646 | if (data.ofs != 0 || ia64_info->root.dynamic_sections_created) | |
2647 | { | |
2648 | /* FIXME: we always reserve the memory for dynamic linker even if | |
2649 | there are no PLT entries since dynamic linker may assume the | |
2650 | reserved memory always exists. */ | |
2651 | ||
2652 | BFD_ASSERT (ia64_info->root.dynamic_sections_created); | |
2653 | ||
2654 | ia64_info->root.splt->size = data.ofs; | |
2655 | } | |
2656 | ||
2657 | /* Allocate the PLTOFF entries. */ | |
2658 | ||
2659 | if (ia64_info->pltoff_sec) | |
2660 | { | |
2661 | data.ofs = 0; | |
2662 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data); | |
2663 | ia64_info->pltoff_sec->size = data.ofs; | |
2664 | } | |
2665 | ||
2666 | if (ia64_info->root.dynamic_sections_created) | |
2667 | { | |
2668 | /* Allocate space for the dynamic relocations that turned out to be | |
2669 | required. */ | |
2670 | elf64_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data); | |
2671 | } | |
2672 | ||
2673 | /* We have now determined the sizes of the various dynamic sections. | |
2674 | Allocate memory for them. */ | |
2675 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) | |
2676 | { | |
2677 | bfd_boolean strip; | |
2678 | ||
2679 | if (!(sec->flags & SEC_LINKER_CREATED)) | |
2680 | continue; | |
2681 | ||
2682 | /* If we don't need this section, strip it from the output file. | |
2683 | There were several sections primarily related to dynamic | |
2684 | linking that must be create before the linker maps input | |
2685 | sections to output sections. The linker does that before | |
2686 | bfd_elf_size_dynamic_sections is called, and it is that | |
2687 | function which decides whether anything needs to go into | |
2688 | these sections. */ | |
2689 | ||
2690 | strip = (sec->size == 0); | |
2691 | ||
2692 | if (sec == ia64_info->root.sgot) | |
2693 | strip = FALSE; | |
2694 | else if (sec == ia64_info->root.srelgot) | |
2695 | { | |
2696 | if (strip) | |
2697 | ia64_info->root.srelgot = NULL; | |
2698 | else | |
2699 | /* We use the reloc_count field as a counter if we need to | |
2700 | copy relocs into the output file. */ | |
2701 | sec->reloc_count = 0; | |
2702 | } | |
2703 | else if (sec == ia64_info->fptr_sec) | |
2704 | { | |
2705 | if (strip) | |
2706 | ia64_info->fptr_sec = NULL; | |
2707 | } | |
2708 | else if (sec == ia64_info->rel_fptr_sec) | |
2709 | { | |
2710 | if (strip) | |
2711 | ia64_info->rel_fptr_sec = NULL; | |
2712 | else | |
2713 | /* We use the reloc_count field as a counter if we need to | |
2714 | copy relocs into the output file. */ | |
2715 | sec->reloc_count = 0; | |
2716 | } | |
2717 | else if (sec == ia64_info->root.splt) | |
2718 | { | |
2719 | if (strip) | |
2720 | ia64_info->root.splt = NULL; | |
2721 | } | |
2722 | else if (sec == ia64_info->pltoff_sec) | |
2723 | { | |
2724 | if (strip) | |
2725 | ia64_info->pltoff_sec = NULL; | |
2726 | } | |
2727 | else if (sec == ia64_info->fixups_sec) | |
2728 | { | |
2729 | if (strip) | |
2730 | ia64_info->fixups_sec = NULL; | |
2731 | } | |
2732 | else if (sec == ia64_info->transfer_sec) | |
2733 | { | |
2734 | ; | |
2735 | } | |
2736 | else | |
2737 | { | |
2738 | const char *name; | |
2739 | ||
2740 | /* It's OK to base decisions on the section name, because none | |
2741 | of the dynobj section names depend upon the input files. */ | |
2742 | name = bfd_get_section_name (dynobj, sec); | |
2743 | ||
2744 | if (strcmp (name, ".got.plt") == 0) | |
2745 | strip = FALSE; | |
2746 | else if (CONST_STRNEQ (name, ".rel")) | |
2747 | { | |
2748 | if (!strip) | |
2749 | { | |
2750 | /* We use the reloc_count field as a counter if we need to | |
2751 | copy relocs into the output file. */ | |
2752 | sec->reloc_count = 0; | |
2753 | } | |
2754 | } | |
2755 | else | |
2756 | continue; | |
2757 | } | |
2758 | ||
2759 | if (strip) | |
2760 | sec->flags |= SEC_EXCLUDE; | |
2761 | else | |
2762 | { | |
2763 | /* Allocate memory for the section contents. */ | |
2764 | sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size); | |
2765 | if (sec->contents == NULL && sec->size != 0) | |
2766 | return FALSE; | |
2767 | } | |
2768 | } | |
2769 | ||
2770 | if (elf_hash_table (info)->dynamic_sections_created) | |
2771 | { | |
2772 | bfd *abfd; | |
2773 | asection *dynsec; | |
2774 | asection *dynstrsec; | |
2775 | Elf_Internal_Dyn dyn; | |
2776 | const struct elf_backend_data *bed; | |
2777 | unsigned int shl_num = 0; | |
2778 | bfd_vma fixups_off = 0; | |
2779 | bfd_vma strdyn_off; | |
2780 | unsigned int time_hi, time_lo; | |
2781 | ||
2782 | /* The .dynamic section must exist and be empty. */ | |
3d4d4302 | 2783 | dynsec = bfd_get_linker_section (hash_table->dynobj, ".dynamic"); |
202e2356 NC |
2784 | BFD_ASSERT (dynsec != NULL); |
2785 | BFD_ASSERT (dynsec->size == 0); | |
2786 | ||
3d4d4302 | 2787 | dynstrsec = bfd_get_linker_section (hash_table->dynobj, ".vmsdynstr"); |
202e2356 NC |
2788 | BFD_ASSERT (dynstrsec != NULL); |
2789 | BFD_ASSERT (dynstrsec->size == 0); | |
2790 | dynstrsec->size = 1; /* Initial blank. */ | |
2791 | ||
2792 | /* Ident + link time. */ | |
2793 | vms_get_time (&time_hi, &time_lo); | |
2794 | ||
2795 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_IDENT, 0)) | |
2796 | return FALSE; | |
2797 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_LINKTIME, | |
2798 | (((bfd_uint64_t)time_hi) << 32) | |
2799 | + time_lo)) | |
2800 | return FALSE; | |
2801 | ||
2802 | /* Strtab. */ | |
2803 | strdyn_off = dynsec->size; | |
2804 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_STRTAB_OFFSET, 0)) | |
2805 | return FALSE; | |
2806 | if (!_bfd_elf_add_dynamic_entry (info, DT_STRSZ, 0)) | |
2807 | return FALSE; | |
2808 | ||
2809 | /* PLTGOT */ | |
2810 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_PLTGOT_SEG, 0)) | |
2811 | return FALSE; | |
2812 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_PLTGOT_OFFSET, 0)) | |
2813 | return FALSE; | |
2814 | ||
2815 | /* Misc. */ | |
2816 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_FPMODE, 0x9800000)) | |
2817 | return FALSE; | |
2818 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_LNKFLAGS, | |
2819 | VMS_LF_IMGSTA | VMS_LF_MAIN)) | |
2820 | return FALSE; | |
2821 | ||
2822 | /* Add entries for shared libraries. */ | |
c72f2fb2 | 2823 | for (abfd = info->input_bfds; abfd; abfd = abfd->link.next) |
202e2356 NC |
2824 | { |
2825 | char *soname; | |
2826 | size_t soname_len; | |
2827 | bfd_size_type strindex; | |
2828 | bfd_byte *newcontents; | |
2829 | bfd_vma fixups_shl_off; | |
2830 | ||
2831 | if (!(abfd->flags & DYNAMIC)) | |
2832 | continue; | |
2833 | BFD_ASSERT (abfd->xvec == output_bfd->xvec); | |
2834 | ||
2835 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_NEEDED_IDENT, | |
2836 | elf_ia64_vms_ident (abfd))) | |
2837 | return FALSE; | |
2838 | ||
2839 | soname = vms_get_module_name (abfd->filename, TRUE); | |
2840 | if (soname == NULL) | |
2841 | return FALSE; | |
2842 | strindex = dynstrsec->size; | |
2843 | soname_len = strlen (soname) + 1; | |
2844 | newcontents = (bfd_byte *) bfd_realloc (dynstrsec->contents, | |
2845 | strindex + soname_len); | |
2846 | if (newcontents == NULL) | |
2847 | return FALSE; | |
2848 | memcpy (newcontents + strindex, soname, soname_len); | |
2849 | dynstrsec->size += soname_len; | |
2850 | dynstrsec->contents = newcontents; | |
2851 | ||
2852 | if (!_bfd_elf_add_dynamic_entry (info, DT_NEEDED, strindex)) | |
2853 | return FALSE; | |
2854 | ||
2855 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_FIXUP_NEEDED, | |
2856 | shl_num)) | |
2857 | return FALSE; | |
2858 | shl_num++; | |
2859 | ||
2860 | /* The fixups_off was in fact containing the size of the fixup | |
2861 | section. Remap into the offset. */ | |
2862 | fixups_shl_off = elf_ia64_vms_tdata (abfd)->fixups_off; | |
2863 | elf_ia64_vms_tdata (abfd)->fixups_off = fixups_off; | |
2864 | ||
2865 | if (!_bfd_elf_add_dynamic_entry | |
2866 | (info, DT_IA_64_VMS_FIXUP_RELA_CNT, | |
2867 | fixups_shl_off / sizeof (Elf64_External_VMS_IMAGE_FIXUP))) | |
2868 | return FALSE; | |
2869 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_FIXUP_RELA_OFF, | |
2870 | fixups_off)) | |
2871 | return FALSE; | |
2872 | fixups_off += fixups_shl_off; | |
2873 | } | |
2874 | ||
2875 | /* Unwind. */ | |
2876 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_UNWINDSZ, 0)) | |
2877 | return FALSE; | |
2878 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_UNWIND_CODSEG, 0)) | |
2879 | return FALSE; | |
2880 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_UNWIND_INFOSEG, 0)) | |
2881 | return FALSE; | |
2882 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_UNWIND_OFFSET, 0)) | |
2883 | return FALSE; | |
2884 | if (!_bfd_elf_add_dynamic_entry (info, DT_IA_64_VMS_UNWIND_SEG, 0)) | |
2885 | return FALSE; | |
2886 | ||
2887 | if (!_bfd_elf_add_dynamic_entry (info, DT_NULL, 0xdead)) | |
2888 | return FALSE; | |
2889 | ||
2890 | /* Fix the strtab entries. */ | |
2891 | bed = get_elf_backend_data (hash_table->dynobj); | |
2892 | ||
2893 | if (dynstrsec->size > 1) | |
2894 | dynstrsec->contents[0] = 0; | |
2895 | else | |
2896 | dynstrsec->size = 0; | |
2897 | ||
2898 | /* Note: one 'spare' (ie DT_NULL) entry is added by | |
2899 | bfd_elf_size_dynsym_hash_dynstr. */ | |
2900 | dyn.d_tag = DT_IA_64_VMS_STRTAB_OFFSET; | |
2901 | dyn.d_un.d_val = dynsec->size /* + sizeof (Elf64_External_Dyn) */; | |
2902 | bed->s->swap_dyn_out (hash_table->dynobj, &dyn, | |
2903 | dynsec->contents + strdyn_off); | |
2904 | ||
2905 | dyn.d_tag = DT_STRSZ; | |
2906 | dyn.d_un.d_val = dynstrsec->size; | |
2907 | bed->s->swap_dyn_out (hash_table->dynobj, &dyn, | |
2908 | dynsec->contents + strdyn_off + bed->s->sizeof_dyn); | |
2909 | ||
2910 | elf_ia64_vms_tdata (output_bfd)->needed_count = shl_num; | |
2911 | ||
2912 | /* Note section. */ | |
2913 | if (!create_ia64_vms_notes (output_bfd, info, time_hi, time_lo)) | |
2914 | return FALSE; | |
2915 | } | |
2916 | ||
2917 | /* ??? Perhaps force __gp local. */ | |
2918 | ||
2919 | return TRUE; | |
2920 | } | |
2921 | ||
2922 | static void | |
2923 | elf64_ia64_install_fixup (bfd *output_bfd, | |
2924 | struct elf64_ia64_link_hash_table *ia64_info, | |
2925 | struct elf_link_hash_entry *h, | |
2926 | unsigned int type, asection *sec, bfd_vma offset, | |
2927 | bfd_vma addend) | |
2928 | { | |
2929 | asection *relsec; | |
2930 | Elf64_External_VMS_IMAGE_FIXUP *fixup; | |
2931 | struct elf64_ia64_link_hash_entry *h_ia64; | |
2932 | bfd_vma fixoff; | |
2933 | Elf_Internal_Phdr *phdr; | |
2934 | ||
2935 | if (h == NULL || !h->def_dynamic) | |
2936 | abort (); | |
2937 | ||
2938 | h_ia64 = (struct elf64_ia64_link_hash_entry *) h; | |
2939 | fixoff = elf_ia64_vms_tdata (h_ia64->shl)->fixups_off; | |
2940 | elf_ia64_vms_tdata (h_ia64->shl)->fixups_off += | |
2941 | sizeof (Elf64_External_VMS_IMAGE_FIXUP); | |
2942 | relsec = ia64_info->fixups_sec; | |
2943 | ||
2944 | fixup = (Elf64_External_VMS_IMAGE_FIXUP *)(relsec->contents + fixoff); | |
2945 | offset += sec->output_section->vma + sec->output_offset; | |
2946 | ||
2947 | /* FIXME: this is slow. We should cache the last one used, or create a | |
2948 | map. */ | |
2949 | phdr = _bfd_elf_find_segment_containing_section | |
2950 | (output_bfd, sec->output_section); | |
2951 | BFD_ASSERT (phdr != NULL); | |
2952 | ||
2953 | bfd_putl64 (offset - phdr->p_vaddr, fixup->fixup_offset); | |
2954 | bfd_putl32 (type, fixup->type); | |
2955 | bfd_putl32 (phdr - elf_tdata (output_bfd)->phdr, fixup->fixup_seg); | |
2956 | bfd_putl64 (addend, fixup->addend); | |
2957 | bfd_putl32 (h->root.u.def.value, fixup->symvec_index); | |
2958 | bfd_putl32 (2, fixup->data_type); | |
2959 | } | |
2960 | ||
2961 | /* Store an entry for target address TARGET_ADDR in the linkage table | |
2962 | and return the gp-relative address of the linkage table entry. */ | |
2963 | ||
2964 | static bfd_vma | |
2965 | set_got_entry (bfd *abfd, struct bfd_link_info *info, | |
2966 | struct elf64_ia64_dyn_sym_info *dyn_i, | |
2967 | bfd_vma addend, bfd_vma value, unsigned int dyn_r_type) | |
2968 | { | |
2969 | struct elf64_ia64_link_hash_table *ia64_info; | |
2970 | asection *got_sec; | |
2971 | bfd_boolean done; | |
2972 | bfd_vma got_offset; | |
2973 | ||
2974 | ia64_info = elf64_ia64_hash_table (info); | |
2975 | if (ia64_info == NULL) | |
2976 | return 0; | |
2977 | ||
2978 | got_sec = ia64_info->root.sgot; | |
2979 | ||
2980 | switch (dyn_r_type) | |
2981 | { | |
2982 | case R_IA64_TPREL64LSB: | |
2983 | case R_IA64_DTPMOD64LSB: | |
2984 | case R_IA64_DTPREL32LSB: | |
2985 | case R_IA64_DTPREL64LSB: | |
2986 | abort (); | |
2987 | break; | |
2988 | default: | |
2989 | done = dyn_i->got_done; | |
2990 | dyn_i->got_done = TRUE; | |
2991 | got_offset = dyn_i->got_offset; | |
2992 | break; | |
2993 | } | |
2994 | ||
2995 | BFD_ASSERT ((got_offset & 7) == 0); | |
2996 | ||
2997 | if (! done) | |
2998 | { | |
2999 | /* Store the target address in the linkage table entry. */ | |
3000 | bfd_put_64 (abfd, value, got_sec->contents + got_offset); | |
3001 | ||
3002 | /* Install a dynamic relocation if needed. */ | |
0e1862bb | 3003 | if (((bfd_link_pic (info) |
202e2356 NC |
3004 | && (!dyn_i->h |
3005 | || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT | |
3006 | || dyn_i->h->root.type != bfd_link_hash_undefweak)) | |
3007 | || elf64_ia64_dynamic_symbol_p (dyn_i->h)) | |
3008 | && (!dyn_i->want_ltoff_fptr | |
0e1862bb | 3009 | || !bfd_link_pie (info) |
202e2356 NC |
3010 | || !dyn_i->h |
3011 | || dyn_i->h->root.type != bfd_link_hash_undefweak)) | |
3012 | { | |
3013 | if (!dyn_i->h || !dyn_i->h->def_dynamic) | |
3014 | { | |
3015 | dyn_r_type = R_IA64_REL64LSB; | |
3016 | addend = value; | |
3017 | } | |
3018 | ||
3019 | /* VMS: install a FIX32 or FIX64. */ | |
3020 | switch (dyn_r_type) | |
3021 | { | |
3022 | case R_IA64_DIR32LSB: | |
3023 | case R_IA64_FPTR32LSB: | |
3024 | dyn_r_type = R_IA64_VMS_FIX32; | |
3025 | break; | |
3026 | case R_IA64_DIR64LSB: | |
3027 | case R_IA64_FPTR64LSB: | |
3028 | dyn_r_type = R_IA64_VMS_FIX64; | |
3029 | break; | |
3030 | default: | |
3031 | BFD_ASSERT (FALSE); | |
3032 | break; | |
3033 | } | |
3034 | elf64_ia64_install_fixup | |
3035 | (info->output_bfd, ia64_info, dyn_i->h, | |
3036 | dyn_r_type, got_sec, got_offset, addend); | |
3037 | } | |
3038 | } | |
3039 | ||
3040 | /* Return the address of the linkage table entry. */ | |
3041 | value = (got_sec->output_section->vma | |
3042 | + got_sec->output_offset | |
3043 | + got_offset); | |
3044 | ||
3045 | return value; | |
3046 | } | |
3047 | ||
3048 | /* Fill in a function descriptor consisting of the function's code | |
3049 | address and its global pointer. Return the descriptor's address. */ | |
3050 | ||
3051 | static bfd_vma | |
3052 | set_fptr_entry (bfd *abfd, struct bfd_link_info *info, | |
3053 | struct elf64_ia64_dyn_sym_info *dyn_i, | |
3054 | bfd_vma value) | |
3055 | { | |
3056 | struct elf64_ia64_link_hash_table *ia64_info; | |
3057 | asection *fptr_sec; | |
3058 | ||
3059 | ia64_info = elf64_ia64_hash_table (info); | |
3060 | if (ia64_info == NULL) | |
3061 | return 0; | |
3062 | ||
3063 | fptr_sec = ia64_info->fptr_sec; | |
3064 | ||
3065 | if (!dyn_i->fptr_done) | |
3066 | { | |
3067 | dyn_i->fptr_done = 1; | |
3068 | ||
3069 | /* Fill in the function descriptor. */ | |
3070 | bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset); | |
3071 | bfd_put_64 (abfd, _bfd_get_gp_value (abfd), | |
3072 | fptr_sec->contents + dyn_i->fptr_offset + 8); | |
3073 | } | |
3074 | ||
3075 | /* Return the descriptor's address. */ | |
3076 | value = (fptr_sec->output_section->vma | |
3077 | + fptr_sec->output_offset | |
3078 | + dyn_i->fptr_offset); | |
3079 | ||
3080 | return value; | |
3081 | } | |
3082 | ||
3083 | /* Fill in a PLTOFF entry consisting of the function's code address | |
3084 | and its global pointer. Return the descriptor's address. */ | |
3085 | ||
3086 | static bfd_vma | |
3087 | set_pltoff_entry (bfd *abfd, struct bfd_link_info *info, | |
3088 | struct elf64_ia64_dyn_sym_info *dyn_i, | |
3089 | bfd_vma value, bfd_boolean is_plt) | |
3090 | { | |
3091 | struct elf64_ia64_link_hash_table *ia64_info; | |
3092 | asection *pltoff_sec; | |
3093 | ||
3094 | ia64_info = elf64_ia64_hash_table (info); | |
3095 | if (ia64_info == NULL) | |
3096 | return 0; | |
3097 | ||
3098 | pltoff_sec = ia64_info->pltoff_sec; | |
3099 | ||
3100 | /* Don't do anything if this symbol uses a real PLT entry. In | |
3101 | that case, we'll fill this in during finish_dynamic_symbol. */ | |
3102 | if ((! dyn_i->want_plt || is_plt) | |
3103 | && !dyn_i->pltoff_done) | |
3104 | { | |
3105 | bfd_vma gp = _bfd_get_gp_value (abfd); | |
3106 | ||
3107 | /* Fill in the function descriptor. */ | |
3108 | bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset); | |
3109 | bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8); | |
3110 | ||
3111 | /* Install dynamic relocations if needed. */ | |
3112 | if (!is_plt | |
0e1862bb | 3113 | && bfd_link_pic (info) |
202e2356 NC |
3114 | && (!dyn_i->h |
3115 | || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT | |
3116 | || dyn_i->h->root.type != bfd_link_hash_undefweak)) | |
3117 | { | |
3118 | /* VMS: */ | |
3119 | abort (); | |
3120 | } | |
3121 | ||
3122 | dyn_i->pltoff_done = 1; | |
3123 | } | |
3124 | ||
3125 | /* Return the descriptor's address. */ | |
3126 | value = (pltoff_sec->output_section->vma | |
3127 | + pltoff_sec->output_offset | |
3128 | + dyn_i->pltoff_offset); | |
3129 | ||
3130 | return value; | |
3131 | } | |
3132 | ||
3133 | /* Called through qsort to sort the .IA_64.unwind section during a | |
3134 | non-relocatable link. Set elf64_ia64_unwind_entry_compare_bfd | |
3135 | to the output bfd so we can do proper endianness frobbing. */ | |
3136 | ||
3137 | static bfd *elf64_ia64_unwind_entry_compare_bfd; | |
3138 | ||
3139 | static int | |
3140 | elf64_ia64_unwind_entry_compare (const void * a, const void * b) | |
3141 | { | |
3142 | bfd_vma av, bv; | |
3143 | ||
3144 | av = bfd_get_64 (elf64_ia64_unwind_entry_compare_bfd, a); | |
3145 | bv = bfd_get_64 (elf64_ia64_unwind_entry_compare_bfd, b); | |
3146 | ||
3147 | return (av < bv ? -1 : av > bv ? 1 : 0); | |
3148 | } | |
3149 | ||
3150 | /* Make sure we've got ourselves a nice fat __gp value. */ | |
3151 | static bfd_boolean | |
3152 | elf64_ia64_choose_gp (bfd *abfd, struct bfd_link_info *info, bfd_boolean final) | |
3153 | { | |
3154 | bfd_vma min_vma = (bfd_vma) -1, max_vma = 0; | |
3155 | bfd_vma min_short_vma = min_vma, max_short_vma = 0; | |
3156 | struct elf_link_hash_entry *gp; | |
3157 | bfd_vma gp_val; | |
3158 | asection *os; | |
3159 | struct elf64_ia64_link_hash_table *ia64_info; | |
3160 | ||
3161 | ia64_info = elf64_ia64_hash_table (info); | |
3162 | if (ia64_info == NULL) | |
3163 | return FALSE; | |
3164 | ||
3165 | /* Find the min and max vma of all sections marked short. Also collect | |
3166 | min and max vma of any type, for use in selecting a nice gp. */ | |
3167 | for (os = abfd->sections; os ; os = os->next) | |
3168 | { | |
3169 | bfd_vma lo, hi; | |
3170 | ||
3171 | if ((os->flags & SEC_ALLOC) == 0) | |
3172 | continue; | |
3173 | ||
3174 | lo = os->vma; | |
3175 | /* When this function is called from elfNN_ia64_final_link | |
3176 | the correct value to use is os->size. When called from | |
3177 | elfNN_ia64_relax_section we are in the middle of section | |
3178 | sizing; some sections will already have os->size set, others | |
3179 | will have os->size zero and os->rawsize the previous size. */ | |
3180 | hi = os->vma + (!final && os->rawsize ? os->rawsize : os->size); | |
3181 | if (hi < lo) | |
3182 | hi = (bfd_vma) -1; | |
3183 | ||
3184 | if (min_vma > lo) | |
3185 | min_vma = lo; | |
3186 | if (max_vma < hi) | |
3187 | max_vma = hi; | |
3188 | if (os->flags & SEC_SMALL_DATA) | |
3189 | { | |
3190 | if (min_short_vma > lo) | |
3191 | min_short_vma = lo; | |
3192 | if (max_short_vma < hi) | |
3193 | max_short_vma = hi; | |
3194 | } | |
3195 | } | |
3196 | ||
3197 | if (ia64_info->min_short_sec) | |
3198 | { | |
3199 | if (min_short_vma | |
3200 | > (ia64_info->min_short_sec->vma | |
3201 | + ia64_info->min_short_offset)) | |
3202 | min_short_vma = (ia64_info->min_short_sec->vma | |
3203 | + ia64_info->min_short_offset); | |
3204 | if (max_short_vma | |
3205 | < (ia64_info->max_short_sec->vma | |
3206 | + ia64_info->max_short_offset)) | |
3207 | max_short_vma = (ia64_info->max_short_sec->vma | |
3208 | + ia64_info->max_short_offset); | |
3209 | } | |
3210 | ||
3211 | /* See if the user wants to force a value. */ | |
3212 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE, | |
3213 | FALSE, FALSE); | |
3214 | ||
3215 | if (gp | |
3216 | && (gp->root.type == bfd_link_hash_defined | |
3217 | || gp->root.type == bfd_link_hash_defweak)) | |
3218 | { | |
3219 | asection *gp_sec = gp->root.u.def.section; | |
3220 | gp_val = (gp->root.u.def.value | |
3221 | + gp_sec->output_section->vma | |
3222 | + gp_sec->output_offset); | |
3223 | } | |
3224 | else | |
3225 | { | |
3226 | /* Pick a sensible value. */ | |
3227 | ||
3228 | if (ia64_info->min_short_sec) | |
3229 | { | |
3230 | bfd_vma short_range = max_short_vma - min_short_vma; | |
3231 | ||
3232 | /* If min_short_sec is set, pick one in the middle bewteen | |
3233 | min_short_vma and max_short_vma. */ | |
3234 | if (short_range >= 0x400000) | |
3235 | goto overflow; | |
3236 | gp_val = min_short_vma + short_range / 2; | |
3237 | } | |
3238 | else | |
3239 | { | |
3240 | asection *got_sec = ia64_info->root.sgot; | |
3241 | ||
3242 | /* Start with just the address of the .got. */ | |
3243 | if (got_sec) | |
3244 | gp_val = got_sec->output_section->vma; | |
3245 | else if (max_short_vma != 0) | |
3246 | gp_val = min_short_vma; | |
3247 | else if (max_vma - min_vma < 0x200000) | |
3248 | gp_val = min_vma; | |
3249 | else | |
3250 | gp_val = max_vma - 0x200000 + 8; | |
3251 | } | |
3252 | ||
3253 | /* If it is possible to address the entire image, but we | |
3254 | don't with the choice above, adjust. */ | |
3255 | if (max_vma - min_vma < 0x400000 | |
3256 | && (max_vma - gp_val >= 0x200000 | |
3257 | || gp_val - min_vma > 0x200000)) | |
3258 | gp_val = min_vma + 0x200000; | |
3259 | else if (max_short_vma != 0) | |
3260 | { | |
3261 | /* If we don't cover all the short data, adjust. */ | |
3262 | if (max_short_vma - gp_val >= 0x200000) | |
3263 | gp_val = min_short_vma + 0x200000; | |
3264 | ||
3265 | /* If we're addressing stuff past the end, adjust back. */ | |
3266 | if (gp_val > max_vma) | |
3267 | gp_val = max_vma - 0x200000 + 8; | |
3268 | } | |
3269 | } | |
3270 | ||
3271 | /* Validate whether all SHF_IA_64_SHORT sections are within | |
3272 | range of the chosen GP. */ | |
3273 | ||
3274 | if (max_short_vma != 0) | |
3275 | { | |
3276 | if (max_short_vma - min_short_vma >= 0x400000) | |
3277 | { | |
3278 | overflow: | |
4eca0228 | 3279 | _bfd_error_handler |
695344c0 | 3280 | /* xgettext:c-format */ |
202e2356 NC |
3281 | (_("%s: short data segment overflowed (0x%lx >= 0x400000)"), |
3282 | bfd_get_filename (abfd), | |
3283 | (unsigned long) (max_short_vma - min_short_vma)); | |
3284 | return FALSE; | |
3285 | } | |
3286 | else if ((gp_val > min_short_vma | |
3287 | && gp_val - min_short_vma > 0x200000) | |
3288 | || (gp_val < max_short_vma | |
3289 | && max_short_vma - gp_val >= 0x200000)) | |
3290 | { | |
4eca0228 | 3291 | _bfd_error_handler |
202e2356 NC |
3292 | (_("%s: __gp does not cover short data segment"), |
3293 | bfd_get_filename (abfd)); | |
3294 | return FALSE; | |
3295 | } | |
3296 | } | |
3297 | ||
3298 | _bfd_set_gp_value (abfd, gp_val); | |
3299 | ||
3300 | return TRUE; | |
3301 | } | |
3302 | ||
3303 | static bfd_boolean | |
3304 | elf64_ia64_final_link (bfd *abfd, struct bfd_link_info *info) | |
3305 | { | |
3306 | struct elf64_ia64_link_hash_table *ia64_info; | |
3307 | asection *unwind_output_sec; | |
3308 | ||
3309 | ia64_info = elf64_ia64_hash_table (info); | |
3310 | if (ia64_info == NULL) | |
3311 | return FALSE; | |
3312 | ||
3313 | /* Make sure we've got ourselves a nice fat __gp value. */ | |
0e1862bb | 3314 | if (!bfd_link_relocatable (info)) |
202e2356 NC |
3315 | { |
3316 | bfd_vma gp_val; | |
3317 | struct elf_link_hash_entry *gp; | |
3318 | ||
3319 | /* We assume after gp is set, section size will only decrease. We | |
3320 | need to adjust gp for it. */ | |
3321 | _bfd_set_gp_value (abfd, 0); | |
3322 | if (! elf64_ia64_choose_gp (abfd, info, TRUE)) | |
3323 | return FALSE; | |
3324 | gp_val = _bfd_get_gp_value (abfd); | |
3325 | ||
3326 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE, | |
3327 | FALSE, FALSE); | |
3328 | if (gp) | |
3329 | { | |
3330 | gp->root.type = bfd_link_hash_defined; | |
3331 | gp->root.u.def.value = gp_val; | |
3332 | gp->root.u.def.section = bfd_abs_section_ptr; | |
3333 | } | |
3334 | } | |
3335 | ||
3336 | /* If we're producing a final executable, we need to sort the contents | |
3337 | of the .IA_64.unwind section. Force this section to be relocated | |
3338 | into memory rather than written immediately to the output file. */ | |
3339 | unwind_output_sec = NULL; | |
0e1862bb | 3340 | if (!bfd_link_relocatable (info)) |
202e2356 NC |
3341 | { |
3342 | asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind); | |
3343 | if (s) | |
3344 | { | |
3345 | unwind_output_sec = s->output_section; | |
3346 | unwind_output_sec->contents | |
3347 | = bfd_malloc (unwind_output_sec->size); | |
3348 | if (unwind_output_sec->contents == NULL) | |
3349 | return FALSE; | |
3350 | } | |
3351 | } | |
3352 | ||
3353 | /* Invoke the regular ELF backend linker to do all the work. */ | |
3354 | if (!bfd_elf_final_link (abfd, info)) | |
3355 | return FALSE; | |
3356 | ||
3357 | if (unwind_output_sec) | |
3358 | { | |
3359 | elf64_ia64_unwind_entry_compare_bfd = abfd; | |
3360 | qsort (unwind_output_sec->contents, | |
3361 | (size_t) (unwind_output_sec->size / 24), | |
3362 | 24, | |
3363 | elf64_ia64_unwind_entry_compare); | |
3364 | ||
3365 | if (! bfd_set_section_contents (abfd, unwind_output_sec, | |
3366 | unwind_output_sec->contents, (bfd_vma) 0, | |
3367 | unwind_output_sec->size)) | |
3368 | return FALSE; | |
3369 | } | |
3370 | ||
3371 | return TRUE; | |
3372 | } | |
3373 | ||
3374 | static bfd_boolean | |
3375 | elf64_ia64_relocate_section (bfd *output_bfd, | |
3376 | struct bfd_link_info *info, | |
3377 | bfd *input_bfd, | |
3378 | asection *input_section, | |
3379 | bfd_byte *contents, | |
3380 | Elf_Internal_Rela *relocs, | |
3381 | Elf_Internal_Sym *local_syms, | |
3382 | asection **local_sections) | |
3383 | { | |
3384 | struct elf64_ia64_link_hash_table *ia64_info; | |
3385 | Elf_Internal_Shdr *symtab_hdr; | |
3386 | Elf_Internal_Rela *rel; | |
3387 | Elf_Internal_Rela *relend; | |
3388 | bfd_boolean ret_val = TRUE; /* for non-fatal errors */ | |
3389 | bfd_vma gp_val; | |
3390 | ||
3391 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3392 | ia64_info = elf64_ia64_hash_table (info); | |
3393 | if (ia64_info == NULL) | |
3394 | return FALSE; | |
3395 | ||
3396 | /* Infect various flags from the input section to the output section. */ | |
0e1862bb | 3397 | if (bfd_link_relocatable (info)) |
202e2356 NC |
3398 | { |
3399 | bfd_vma flags; | |
3400 | ||
3401 | flags = elf_section_data(input_section)->this_hdr.sh_flags; | |
3402 | flags &= SHF_IA_64_NORECOV; | |
3403 | ||
3404 | elf_section_data(input_section->output_section) | |
3405 | ->this_hdr.sh_flags |= flags; | |
3406 | } | |
3407 | ||
3408 | gp_val = _bfd_get_gp_value (output_bfd); | |
3409 | ||
3410 | rel = relocs; | |
3411 | relend = relocs + input_section->reloc_count; | |
3412 | for (; rel < relend; ++rel) | |
3413 | { | |
3414 | struct elf_link_hash_entry *h; | |
3415 | struct elf64_ia64_dyn_sym_info *dyn_i; | |
3416 | bfd_reloc_status_type r; | |
3417 | reloc_howto_type *howto; | |
3418 | unsigned long r_symndx; | |
3419 | Elf_Internal_Sym *sym; | |
3420 | unsigned int r_type; | |
3421 | bfd_vma value; | |
3422 | asection *sym_sec; | |
3423 | bfd_byte *hit_addr; | |
3424 | bfd_boolean dynamic_symbol_p; | |
3425 | bfd_boolean undef_weak_ref; | |
3426 | ||
3427 | r_type = ELF64_R_TYPE (rel->r_info); | |
3428 | if (r_type > R_IA64_MAX_RELOC_CODE) | |
3429 | { | |
4eca0228 | 3430 | _bfd_error_handler |
695344c0 | 3431 | /* xgettext:c-format */ |
202e2356 NC |
3432 | (_("%B: unknown relocation type %d"), |
3433 | input_bfd, (int) r_type); | |
3434 | bfd_set_error (bfd_error_bad_value); | |
3435 | ret_val = FALSE; | |
3436 | continue; | |
3437 | } | |
3438 | ||
3439 | howto = ia64_elf_lookup_howto (r_type); | |
3440 | r_symndx = ELF64_R_SYM (rel->r_info); | |
3441 | h = NULL; | |
3442 | sym = NULL; | |
3443 | sym_sec = NULL; | |
3444 | undef_weak_ref = FALSE; | |
3445 | ||
3446 | if (r_symndx < symtab_hdr->sh_info) | |
3447 | { | |
3448 | /* Reloc against local symbol. */ | |
3449 | asection *msec; | |
3450 | sym = local_syms + r_symndx; | |
3451 | sym_sec = local_sections[r_symndx]; | |
3452 | msec = sym_sec; | |
3453 | value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel); | |
0e1862bb | 3454 | if (!bfd_link_relocatable (info) |
202e2356 NC |
3455 | && (sym_sec->flags & SEC_MERGE) != 0 |
3456 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION | |
dbaa2011 | 3457 | && sym_sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
202e2356 NC |
3458 | { |
3459 | struct elf64_ia64_local_hash_entry *loc_h; | |
3460 | ||
3461 | loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE); | |
3462 | if (loc_h && ! loc_h->sec_merge_done) | |
3463 | { | |
3464 | struct elf64_ia64_dyn_sym_info *dynent; | |
3465 | unsigned int count; | |
3466 | ||
3467 | for (count = loc_h->count, dynent = loc_h->info; | |
3468 | count != 0; | |
3469 | count--, dynent++) | |
3470 | { | |
3471 | msec = sym_sec; | |
3472 | dynent->addend = | |
3473 | _bfd_merged_section_offset (output_bfd, &msec, | |
3474 | elf_section_data (msec)-> | |
3475 | sec_info, | |
3476 | sym->st_value | |
3477 | + dynent->addend); | |
3478 | dynent->addend -= sym->st_value; | |
3479 | dynent->addend += msec->output_section->vma | |
3480 | + msec->output_offset | |
3481 | - sym_sec->output_section->vma | |
3482 | - sym_sec->output_offset; | |
3483 | } | |
3484 | ||
3485 | /* We may have introduced duplicated entries. We need | |
3486 | to remove them properly. */ | |
3487 | count = sort_dyn_sym_info (loc_h->info, loc_h->count); | |
3488 | if (count != loc_h->count) | |
3489 | { | |
3490 | loc_h->count = count; | |
3491 | loc_h->sorted_count = count; | |
3492 | } | |
3493 | ||
3494 | loc_h->sec_merge_done = 1; | |
3495 | } | |
3496 | } | |
3497 | } | |
3498 | else | |
3499 | { | |
3500 | bfd_boolean unresolved_reloc; | |
62d887d4 | 3501 | bfd_boolean warned, ignored; |
202e2356 NC |
3502 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
3503 | ||
3504 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
3505 | r_symndx, symtab_hdr, sym_hashes, | |
3506 | h, sym_sec, value, | |
62d887d4 | 3507 | unresolved_reloc, warned, ignored); |
202e2356 NC |
3508 | |
3509 | if (h->root.type == bfd_link_hash_undefweak) | |
3510 | undef_weak_ref = TRUE; | |
3511 | else if (warned) | |
3512 | continue; | |
3513 | } | |
3514 | ||
3515 | /* For relocs against symbols from removed linkonce sections, | |
3516 | or sections discarded by a linker script, we just want the | |
3517 | section contents zeroed. Avoid any special processing. */ | |
dbaa2011 | 3518 | if (sym_sec != NULL && discarded_section (sym_sec)) |
202e2356 | 3519 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
2de5d135 | 3520 | rel, 1, relend, howto, 0, contents); |
202e2356 | 3521 | |
0e1862bb | 3522 | if (bfd_link_relocatable (info)) |
202e2356 NC |
3523 | continue; |
3524 | ||
3525 | hit_addr = contents + rel->r_offset; | |
3526 | value += rel->r_addend; | |
3527 | dynamic_symbol_p = elf64_ia64_dynamic_symbol_p (h); | |
3528 | ||
3529 | switch (r_type) | |
3530 | { | |
3531 | case R_IA64_NONE: | |
3532 | case R_IA64_LDXMOV: | |
3533 | continue; | |
3534 | ||
3535 | case R_IA64_IMM14: | |
3536 | case R_IA64_IMM22: | |
3537 | case R_IA64_IMM64: | |
3538 | case R_IA64_DIR32MSB: | |
3539 | case R_IA64_DIR32LSB: | |
3540 | case R_IA64_DIR64MSB: | |
3541 | case R_IA64_DIR64LSB: | |
3542 | /* Install a dynamic relocation for this reloc. */ | |
0e1862bb | 3543 | if ((dynamic_symbol_p || bfd_link_pic (info)) |
202e2356 NC |
3544 | && r_symndx != 0 |
3545 | && (input_section->flags & SEC_ALLOC) != 0) | |
3546 | { | |
3547 | unsigned int dyn_r_type; | |
3548 | bfd_vma addend; | |
3549 | ||
3550 | switch (r_type) | |
3551 | { | |
3552 | case R_IA64_IMM14: | |
3553 | case R_IA64_IMM22: | |
3554 | case R_IA64_IMM64: | |
3555 | /* ??? People shouldn't be doing non-pic code in | |
3556 | shared libraries nor dynamic executables. */ | |
4eca0228 | 3557 | _bfd_error_handler |
695344c0 | 3558 | /* xgettext:c-format */ |
202e2356 NC |
3559 | (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"), |
3560 | input_bfd, | |
3561 | h ? h->root.root.string | |
3562 | : bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
3563 | sym_sec)); | |
3564 | ret_val = FALSE; | |
3565 | continue; | |
3566 | ||
3567 | default: | |
3568 | break; | |
3569 | } | |
3570 | ||
3571 | /* If we don't need dynamic symbol lookup, find a | |
3572 | matching RELATIVE relocation. */ | |
3573 | dyn_r_type = r_type; | |
3574 | if (dynamic_symbol_p) | |
3575 | { | |
3576 | addend = rel->r_addend; | |
3577 | value = 0; | |
3578 | } | |
3579 | else | |
3580 | { | |
3581 | addend = value; | |
3582 | } | |
3583 | ||
3584 | /* VMS: install a FIX64. */ | |
3585 | switch (dyn_r_type) | |
3586 | { | |
3587 | case R_IA64_DIR32LSB: | |
3588 | dyn_r_type = R_IA64_VMS_FIX32; | |
3589 | break; | |
3590 | case R_IA64_DIR64LSB: | |
3591 | dyn_r_type = R_IA64_VMS_FIX64; | |
3592 | break; | |
3593 | default: | |
3594 | BFD_ASSERT (FALSE); | |
3595 | break; | |
3596 | } | |
3597 | elf64_ia64_install_fixup | |
3598 | (output_bfd, ia64_info, h, | |
3599 | dyn_r_type, input_section, rel->r_offset, addend); | |
3600 | r = bfd_reloc_ok; | |
3601 | break; | |
3602 | } | |
3603 | /* Fall through. */ | |
3604 | ||
3605 | case R_IA64_LTV32MSB: | |
3606 | case R_IA64_LTV32LSB: | |
3607 | case R_IA64_LTV64MSB: | |
3608 | case R_IA64_LTV64LSB: | |
3609 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3610 | break; | |
3611 | ||
3612 | case R_IA64_GPREL22: | |
3613 | case R_IA64_GPREL64I: | |
3614 | case R_IA64_GPREL32MSB: | |
3615 | case R_IA64_GPREL32LSB: | |
3616 | case R_IA64_GPREL64MSB: | |
3617 | case R_IA64_GPREL64LSB: | |
3618 | if (dynamic_symbol_p) | |
3619 | { | |
4eca0228 | 3620 | _bfd_error_handler |
695344c0 | 3621 | /* xgettext:c-format */ |
202e2356 NC |
3622 | (_("%B: @gprel relocation against dynamic symbol %s"), |
3623 | input_bfd, | |
3624 | h ? h->root.root.string | |
3625 | : bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
3626 | sym_sec)); | |
3627 | ret_val = FALSE; | |
3628 | continue; | |
3629 | } | |
3630 | value -= gp_val; | |
3631 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3632 | break; | |
3633 | ||
3634 | case R_IA64_LTOFF22: | |
3635 | case R_IA64_LTOFF22X: | |
3636 | case R_IA64_LTOFF64I: | |
3637 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); | |
3638 | value = set_got_entry (input_bfd, info, dyn_i, | |
3639 | rel->r_addend, value, R_IA64_DIR64LSB); | |
3640 | value -= gp_val; | |
3641 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3642 | break; | |
3643 | ||
3644 | case R_IA64_PLTOFF22: | |
3645 | case R_IA64_PLTOFF64I: | |
3646 | case R_IA64_PLTOFF64MSB: | |
3647 | case R_IA64_PLTOFF64LSB: | |
3648 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); | |
3649 | value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE); | |
3650 | value -= gp_val; | |
3651 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3652 | break; | |
3653 | ||
3654 | case R_IA64_FPTR64I: | |
3655 | case R_IA64_FPTR32MSB: | |
3656 | case R_IA64_FPTR32LSB: | |
3657 | case R_IA64_FPTR64MSB: | |
3658 | case R_IA64_FPTR64LSB: | |
3659 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); | |
3660 | if (dyn_i->want_fptr) | |
3661 | { | |
3662 | if (!undef_weak_ref) | |
3663 | value = set_fptr_entry (output_bfd, info, dyn_i, value); | |
3664 | } | |
0e1862bb | 3665 | if (!dyn_i->want_fptr || bfd_link_pie (info)) |
202e2356 NC |
3666 | { |
3667 | /* Otherwise, we expect the dynamic linker to create | |
3668 | the entry. */ | |
3669 | ||
3670 | if (dyn_i->want_fptr) | |
3671 | { | |
3672 | if (r_type == R_IA64_FPTR64I) | |
3673 | { | |
3674 | /* We can't represent this without a dynamic symbol. | |
3675 | Adjust the relocation to be against an output | |
3676 | section symbol, which are always present in the | |
3677 | dynamic symbol table. */ | |
3678 | /* ??? People shouldn't be doing non-pic code in | |
3679 | shared libraries. Hork. */ | |
4eca0228 | 3680 | _bfd_error_handler |
202e2356 NC |
3681 | (_("%B: linking non-pic code in a position independent executable"), |
3682 | input_bfd); | |
3683 | ret_val = FALSE; | |
3684 | continue; | |
3685 | } | |
3686 | } | |
3687 | else | |
3688 | { | |
3689 | value = 0; | |
3690 | } | |
3691 | ||
3692 | /* VMS: FIXFD. */ | |
3693 | elf64_ia64_install_fixup | |
3694 | (output_bfd, ia64_info, h, R_IA64_VMS_FIXFD, | |
3695 | input_section, rel->r_offset, 0); | |
3696 | r = bfd_reloc_ok; | |
3697 | break; | |
3698 | } | |
3699 | ||
3700 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3701 | break; | |
3702 | ||
3703 | case R_IA64_LTOFF_FPTR22: | |
3704 | case R_IA64_LTOFF_FPTR64I: | |
3705 | case R_IA64_LTOFF_FPTR32MSB: | |
3706 | case R_IA64_LTOFF_FPTR32LSB: | |
3707 | case R_IA64_LTOFF_FPTR64MSB: | |
3708 | case R_IA64_LTOFF_FPTR64LSB: | |
3709 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); | |
3710 | if (dyn_i->want_fptr) | |
3711 | { | |
3712 | BFD_ASSERT (h == NULL || !h->def_dynamic); | |
3713 | if (!undef_weak_ref) | |
3714 | value = set_fptr_entry (output_bfd, info, dyn_i, value); | |
3715 | } | |
3716 | else | |
3717 | value = 0; | |
3718 | ||
3719 | value = set_got_entry (output_bfd, info, dyn_i, | |
3720 | rel->r_addend, value, R_IA64_FPTR64LSB); | |
3721 | value -= gp_val; | |
3722 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3723 | break; | |
3724 | ||
3725 | case R_IA64_PCREL32MSB: | |
3726 | case R_IA64_PCREL32LSB: | |
3727 | case R_IA64_PCREL64MSB: | |
3728 | case R_IA64_PCREL64LSB: | |
3729 | /* Install a dynamic relocation for this reloc. */ | |
3730 | if (dynamic_symbol_p && r_symndx != 0) | |
3731 | { | |
3732 | /* VMS: doesn't exist ??? */ | |
3733 | abort (); | |
3734 | } | |
3735 | goto finish_pcrel; | |
3736 | ||
3737 | case R_IA64_PCREL21B: | |
3738 | case R_IA64_PCREL60B: | |
3739 | /* We should have created a PLT entry for any dynamic symbol. */ | |
3740 | dyn_i = NULL; | |
3741 | if (h) | |
3742 | dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE); | |
3743 | ||
3744 | if (dyn_i && dyn_i->want_plt2) | |
3745 | { | |
3746 | /* Should have caught this earlier. */ | |
3747 | BFD_ASSERT (rel->r_addend == 0); | |
3748 | ||
3749 | value = (ia64_info->root.splt->output_section->vma | |
3750 | + ia64_info->root.splt->output_offset | |
3751 | + dyn_i->plt2_offset); | |
3752 | } | |
3753 | else | |
3754 | { | |
3755 | /* Since there's no PLT entry, Validate that this is | |
3756 | locally defined. */ | |
3757 | BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL); | |
3758 | ||
3759 | /* If the symbol is undef_weak, we shouldn't be trying | |
3760 | to call it. There's every chance that we'd wind up | |
3761 | with an out-of-range fixup here. Don't bother setting | |
3762 | any value at all. */ | |
3763 | if (undef_weak_ref) | |
3764 | continue; | |
3765 | } | |
3766 | goto finish_pcrel; | |
3767 | ||
3768 | case R_IA64_PCREL21BI: | |
3769 | case R_IA64_PCREL21F: | |
3770 | case R_IA64_PCREL21M: | |
3771 | case R_IA64_PCREL22: | |
3772 | case R_IA64_PCREL64I: | |
3773 | /* The PCREL21BI reloc is specifically not intended for use with | |
3774 | dynamic relocs. PCREL21F and PCREL21M are used for speculation | |
3775 | fixup code, and thus probably ought not be dynamic. The | |
3776 | PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */ | |
3777 | if (dynamic_symbol_p) | |
3778 | { | |
3779 | const char *msg; | |
3780 | ||
3781 | if (r_type == R_IA64_PCREL21BI) | |
695344c0 | 3782 | /* xgettext:c-format */ |
202e2356 NC |
3783 | msg = _("%B: @internal branch to dynamic symbol %s"); |
3784 | else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M) | |
695344c0 | 3785 | /* xgettext:c-format */ |
202e2356 NC |
3786 | msg = _("%B: speculation fixup to dynamic symbol %s"); |
3787 | else | |
695344c0 | 3788 | /* xgettext:c-format */ |
202e2356 | 3789 | msg = _("%B: @pcrel relocation against dynamic symbol %s"); |
4eca0228 AM |
3790 | _bfd_error_handler (msg, input_bfd, |
3791 | h ? h->root.root.string | |
3792 | : bfd_elf_sym_name (input_bfd, | |
3793 | symtab_hdr, | |
3794 | sym, | |
3795 | sym_sec)); | |
202e2356 NC |
3796 | ret_val = FALSE; |
3797 | continue; | |
3798 | } | |
3799 | goto finish_pcrel; | |
3800 | ||
3801 | finish_pcrel: | |
3802 | /* Make pc-relative. */ | |
3803 | value -= (input_section->output_section->vma | |
3804 | + input_section->output_offset | |
3805 | + rel->r_offset) & ~ (bfd_vma) 0x3; | |
3806 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3807 | break; | |
3808 | ||
3809 | case R_IA64_SEGREL32MSB: | |
3810 | case R_IA64_SEGREL32LSB: | |
3811 | case R_IA64_SEGREL64MSB: | |
3812 | case R_IA64_SEGREL64LSB: | |
3813 | { | |
3814 | /* Find the segment that contains the output_section. */ | |
3815 | Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section | |
3816 | (output_bfd, sym_sec->output_section); | |
3817 | ||
3818 | if (p == NULL) | |
3819 | { | |
3820 | r = bfd_reloc_notsupported; | |
3821 | } | |
3822 | else | |
3823 | { | |
3824 | /* The VMA of the segment is the vaddr of the associated | |
3825 | program header. */ | |
3826 | if (value > p->p_vaddr) | |
3827 | value -= p->p_vaddr; | |
3828 | else | |
3829 | value = 0; | |
3830 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3831 | } | |
3832 | break; | |
3833 | } | |
3834 | ||
3835 | case R_IA64_SECREL32MSB: | |
3836 | case R_IA64_SECREL32LSB: | |
3837 | case R_IA64_SECREL64MSB: | |
3838 | case R_IA64_SECREL64LSB: | |
3839 | /* Make output-section relative to section where the symbol | |
3840 | is defined. PR 475 */ | |
3841 | if (sym_sec) | |
3842 | value -= sym_sec->output_section->vma; | |
3843 | r = ia64_elf_install_value (hit_addr, value, r_type); | |
3844 | break; | |
3845 | ||
3846 | case R_IA64_IPLTMSB: | |
3847 | case R_IA64_IPLTLSB: | |
3848 | /* Install a dynamic relocation for this reloc. */ | |
0e1862bb | 3849 | if ((dynamic_symbol_p || bfd_link_pic (info)) |
202e2356 NC |
3850 | && (input_section->flags & SEC_ALLOC) != 0) |
3851 | { | |
3852 | /* VMS: FIXFD ?? */ | |
3853 | abort (); | |
3854 | } | |
3855 | ||
3856 | if (r_type == R_IA64_IPLTMSB) | |
3857 | r_type = R_IA64_DIR64MSB; | |
3858 | else | |
3859 | r_type = R_IA64_DIR64LSB; | |
3860 | ia64_elf_install_value (hit_addr, value, r_type); | |
3861 | r = ia64_elf_install_value (hit_addr + 8, gp_val, r_type); | |
3862 | break; | |
3863 | ||
3864 | case R_IA64_TPREL14: | |
3865 | case R_IA64_TPREL22: | |
3866 | case R_IA64_TPREL64I: | |
3867 | r = bfd_reloc_notsupported; | |
3868 | break; | |
3869 | ||
3870 | case R_IA64_DTPREL14: | |
3871 | case R_IA64_DTPREL22: | |
3872 | case R_IA64_DTPREL64I: | |
3873 | case R_IA64_DTPREL32LSB: | |
3874 | case R_IA64_DTPREL32MSB: | |
3875 | case R_IA64_DTPREL64LSB: | |
3876 | case R_IA64_DTPREL64MSB: | |
3877 | r = bfd_reloc_notsupported; | |
3878 | break; | |
3879 | ||
3880 | case R_IA64_LTOFF_TPREL22: | |
3881 | case R_IA64_LTOFF_DTPMOD22: | |
3882 | case R_IA64_LTOFF_DTPREL22: | |
3883 | r = bfd_reloc_notsupported; | |
3884 | break; | |
3885 | ||
3886 | default: | |
3887 | r = bfd_reloc_notsupported; | |
3888 | break; | |
3889 | } | |
3890 | ||
3891 | switch (r) | |
3892 | { | |
3893 | case bfd_reloc_ok: | |
3894 | break; | |
3895 | ||
3896 | case bfd_reloc_undefined: | |
3897 | /* This can happen for global table relative relocs if | |
3898 | __gp is undefined. This is a panic situation so we | |
3899 | don't try to continue. */ | |
3900 | (*info->callbacks->undefined_symbol) | |
3901 | (info, "__gp", input_bfd, input_section, rel->r_offset, 1); | |
3902 | return FALSE; | |
3903 | ||
3904 | case bfd_reloc_notsupported: | |
3905 | { | |
3906 | const char *name; | |
3907 | ||
3908 | if (h) | |
3909 | name = h->root.root.string; | |
3910 | else | |
3911 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
3912 | sym_sec); | |
1a72702b AM |
3913 | (*info->callbacks->warning) (info, _("unsupported reloc"), |
3914 | name, input_bfd, | |
3915 | input_section, rel->r_offset); | |
202e2356 NC |
3916 | ret_val = FALSE; |
3917 | } | |
3918 | break; | |
3919 | ||
3920 | case bfd_reloc_dangerous: | |
3921 | case bfd_reloc_outofrange: | |
3922 | case bfd_reloc_overflow: | |
3923 | default: | |
3924 | { | |
3925 | const char *name; | |
3926 | ||
3927 | if (h) | |
3928 | name = h->root.root.string; | |
3929 | else | |
3930 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
3931 | sym_sec); | |
3932 | ||
3933 | switch (r_type) | |
3934 | { | |
3935 | case R_IA64_TPREL14: | |
3936 | case R_IA64_TPREL22: | |
3937 | case R_IA64_TPREL64I: | |
3938 | case R_IA64_DTPREL14: | |
3939 | case R_IA64_DTPREL22: | |
3940 | case R_IA64_DTPREL64I: | |
3941 | case R_IA64_DTPREL32LSB: | |
3942 | case R_IA64_DTPREL32MSB: | |
3943 | case R_IA64_DTPREL64LSB: | |
3944 | case R_IA64_DTPREL64MSB: | |
3945 | case R_IA64_LTOFF_TPREL22: | |
3946 | case R_IA64_LTOFF_DTPMOD22: | |
3947 | case R_IA64_LTOFF_DTPREL22: | |
4eca0228 | 3948 | _bfd_error_handler |
695344c0 | 3949 | /* xgettext:c-format */ |
202e2356 NC |
3950 | (_("%B: missing TLS section for relocation %s against `%s' at 0x%lx in section `%A'."), |
3951 | input_bfd, input_section, howto->name, name, | |
3952 | rel->r_offset); | |
3953 | break; | |
3954 | ||
3955 | case R_IA64_PCREL21B: | |
3956 | case R_IA64_PCREL21BI: | |
3957 | case R_IA64_PCREL21M: | |
3958 | case R_IA64_PCREL21F: | |
3959 | if (is_elf_hash_table (info->hash)) | |
3960 | { | |
3961 | /* Relaxtion is always performed for ELF output. | |
3962 | Overflow failures for those relocations mean | |
3963 | that the section is too big to relax. */ | |
4eca0228 | 3964 | _bfd_error_handler |
695344c0 | 3965 | /* xgettext:c-format */ |
202e2356 NC |
3966 | (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."), |
3967 | input_bfd, input_section, howto->name, name, | |
3968 | rel->r_offset, input_section->size); | |
3969 | break; | |
3970 | } | |
1a0670f3 | 3971 | /* Fall through. */ |
202e2356 | 3972 | default: |
1a72702b AM |
3973 | (*info->callbacks->reloc_overflow) (info, |
3974 | &h->root, | |
3975 | name, | |
3976 | howto->name, | |
3977 | (bfd_vma) 0, | |
3978 | input_bfd, | |
3979 | input_section, | |
3980 | rel->r_offset); | |
202e2356 NC |
3981 | break; |
3982 | } | |
3983 | ||
3984 | ret_val = FALSE; | |
3985 | } | |
3986 | break; | |
3987 | } | |
3988 | } | |
3989 | ||
3990 | return ret_val; | |
3991 | } | |
3992 | ||
3993 | static bfd_boolean | |
3994 | elf64_ia64_finish_dynamic_symbol (bfd *output_bfd, | |
3995 | struct bfd_link_info *info, | |
3996 | struct elf_link_hash_entry *h, | |
3997 | Elf_Internal_Sym *sym) | |
3998 | { | |
3999 | struct elf64_ia64_link_hash_table *ia64_info; | |
4000 | struct elf64_ia64_dyn_sym_info *dyn_i; | |
4001 | ||
4002 | ia64_info = elf64_ia64_hash_table (info); | |
4003 | if (ia64_info == NULL) | |
4004 | return FALSE; | |
4005 | ||
4006 | dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE); | |
4007 | ||
4008 | /* Fill in the PLT data, if required. */ | |
4009 | if (dyn_i && dyn_i->want_plt) | |
4010 | { | |
4011 | bfd_byte *loc; | |
4012 | asection *plt_sec; | |
4013 | bfd_vma plt_addr, pltoff_addr, gp_val; | |
4014 | ||
4015 | gp_val = _bfd_get_gp_value (output_bfd); | |
4016 | ||
4017 | plt_sec = ia64_info->root.splt; | |
4018 | plt_addr = 0; /* Not used as overriden by FIXUPs. */ | |
4019 | pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE); | |
4020 | ||
4021 | /* Initialize the FULL PLT entry, if needed. */ | |
4022 | if (dyn_i->want_plt2) | |
4023 | { | |
4024 | loc = plt_sec->contents + dyn_i->plt2_offset; | |
4025 | ||
4026 | memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE); | |
4027 | ia64_elf_install_value (loc, pltoff_addr - gp_val, R_IA64_IMM22); | |
4028 | ||
4029 | /* Mark the symbol as undefined, rather than as defined in the | |
4030 | plt section. Leave the value alone. */ | |
4031 | /* ??? We didn't redefine it in adjust_dynamic_symbol in the | |
4032 | first place. But perhaps elflink.c did some for us. */ | |
4033 | if (!h->def_regular) | |
4034 | sym->st_shndx = SHN_UNDEF; | |
4035 | } | |
4036 | ||
4037 | /* VMS: FIXFD. */ | |
4038 | elf64_ia64_install_fixup | |
4039 | (output_bfd, ia64_info, h, R_IA64_VMS_FIXFD, ia64_info->pltoff_sec, | |
4040 | pltoff_addr - (ia64_info->pltoff_sec->output_section->vma | |
4041 | + ia64_info->pltoff_sec->output_offset), 0); | |
4042 | } | |
4043 | ||
4044 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef | 4045 | if (h == ia64_info->root.hdynamic |
202e2356 NC |
4046 | || h == ia64_info->root.hgot |
4047 | || h == ia64_info->root.hplt) | |
4048 | sym->st_shndx = SHN_ABS; | |
4049 | ||
4050 | return TRUE; | |
4051 | } | |
4052 | ||
4053 | static bfd_boolean | |
4054 | elf64_ia64_finish_dynamic_sections (bfd *abfd, | |
4055 | struct bfd_link_info *info) | |
4056 | { | |
4057 | struct elf64_ia64_link_hash_table *ia64_info; | |
4058 | bfd *dynobj; | |
4059 | ||
4060 | ia64_info = elf64_ia64_hash_table (info); | |
4061 | if (ia64_info == NULL) | |
4062 | return FALSE; | |
4063 | ||
4064 | dynobj = ia64_info->root.dynobj; | |
4065 | ||
4066 | if (elf_hash_table (info)->dynamic_sections_created) | |
4067 | { | |
4068 | Elf64_External_Dyn *dyncon, *dynconend; | |
4069 | asection *sdyn; | |
4070 | asection *unwind_sec; | |
4071 | bfd_vma gp_val; | |
4072 | unsigned int gp_seg; | |
4073 | bfd_vma gp_off; | |
4074 | Elf_Internal_Phdr *phdr; | |
4075 | Elf_Internal_Phdr *base_phdr; | |
4076 | unsigned int unwind_seg = 0; | |
4077 | unsigned int code_seg = 0; | |
4078 | ||
3d4d4302 | 4079 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
202e2356 NC |
4080 | BFD_ASSERT (sdyn != NULL); |
4081 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
4082 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); | |
4083 | ||
4084 | gp_val = _bfd_get_gp_value (abfd); | |
4085 | phdr = _bfd_elf_find_segment_containing_section | |
4086 | (info->output_bfd, ia64_info->pltoff_sec->output_section); | |
4087 | BFD_ASSERT (phdr != NULL); | |
4088 | base_phdr = elf_tdata (info->output_bfd)->phdr; | |
4089 | gp_seg = phdr - base_phdr; | |
4090 | gp_off = gp_val - phdr->p_vaddr; | |
4091 | ||
4092 | unwind_sec = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind); | |
4093 | if (unwind_sec != NULL) | |
4094 | { | |
4095 | asection *code_sec; | |
4096 | ||
4097 | phdr = _bfd_elf_find_segment_containing_section (abfd, unwind_sec); | |
4098 | BFD_ASSERT (phdr != NULL); | |
4099 | unwind_seg = phdr - base_phdr; | |
4100 | ||
4101 | code_sec = bfd_get_section_by_name (abfd, "$CODE$"); | |
4102 | phdr = _bfd_elf_find_segment_containing_section (abfd, code_sec); | |
4103 | BFD_ASSERT (phdr != NULL); | |
4104 | code_seg = phdr - base_phdr; | |
4105 | } | |
4106 | ||
4107 | for (; dyncon < dynconend; dyncon++) | |
4108 | { | |
4109 | Elf_Internal_Dyn dyn; | |
4110 | ||
4111 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
4112 | ||
4113 | switch (dyn.d_tag) | |
4114 | { | |
4115 | case DT_IA_64_VMS_FIXUP_RELA_OFF: | |
4116 | dyn.d_un.d_val += | |
4117 | (ia64_info->fixups_sec->output_section->vma | |
4118 | + ia64_info->fixups_sec->output_offset) | |
4119 | - (sdyn->output_section->vma + sdyn->output_offset); | |
4120 | break; | |
4121 | ||
4122 | case DT_IA_64_VMS_PLTGOT_OFFSET: | |
4123 | dyn.d_un.d_val = gp_off; | |
4124 | break; | |
4125 | ||
4126 | case DT_IA_64_VMS_PLTGOT_SEG: | |
4127 | dyn.d_un.d_val = gp_seg; | |
4128 | break; | |
4129 | ||
4130 | case DT_IA_64_VMS_UNWINDSZ: | |
4131 | if (unwind_sec == NULL) | |
4132 | { | |
4133 | dyn.d_tag = DT_NULL; | |
4134 | dyn.d_un.d_val = 0xdead; | |
4135 | } | |
4136 | else | |
4137 | dyn.d_un.d_val = unwind_sec->size; | |
4138 | break; | |
4139 | ||
4140 | case DT_IA_64_VMS_UNWIND_CODSEG: | |
4141 | dyn.d_un.d_val = code_seg; | |
4142 | break; | |
4143 | ||
4144 | case DT_IA_64_VMS_UNWIND_INFOSEG: | |
4145 | case DT_IA_64_VMS_UNWIND_SEG: | |
4146 | dyn.d_un.d_val = unwind_seg; | |
4147 | break; | |
4148 | ||
4149 | case DT_IA_64_VMS_UNWIND_OFFSET: | |
4150 | break; | |
4151 | ||
4152 | default: | |
4153 | /* No need to rewrite the entry. */ | |
4154 | continue; | |
4155 | } | |
4156 | ||
4157 | bfd_elf64_swap_dyn_out (abfd, &dyn, dyncon); | |
4158 | } | |
4159 | } | |
4160 | ||
4161 | /* Handle transfer addresses. */ | |
4162 | { | |
4163 | asection *tfr_sec = ia64_info->transfer_sec; | |
4164 | struct elf64_vms_transfer *tfr; | |
4165 | struct elf_link_hash_entry *tfr3; | |
4166 | ||
4167 | tfr = (struct elf64_vms_transfer *)tfr_sec->contents; | |
4168 | bfd_putl32 (6 * 8, tfr->size); | |
4169 | bfd_putl64 (tfr_sec->output_section->vma | |
4170 | + tfr_sec->output_offset | |
4171 | + 6 * 8, tfr->tfradr3); | |
4172 | ||
4173 | tfr3 = elf_link_hash_lookup (elf_hash_table (info), "ELF$TFRADR", FALSE, | |
4174 | FALSE, FALSE); | |
4175 | ||
4176 | if (tfr3 | |
4177 | && (tfr3->root.type == bfd_link_hash_defined | |
4178 | || tfr3->root.type == bfd_link_hash_defweak)) | |
4179 | { | |
4180 | asection *tfr3_sec = tfr3->root.u.def.section; | |
4181 | bfd_vma tfr3_val; | |
4182 | ||
4183 | tfr3_val = (tfr3->root.u.def.value | |
4184 | + tfr3_sec->output_section->vma | |
4185 | + tfr3_sec->output_offset); | |
4186 | ||
4187 | bfd_putl64 (tfr3_val, tfr->tfr3_func); | |
4188 | bfd_putl64 (_bfd_get_gp_value (info->output_bfd), tfr->tfr3_gp); | |
4189 | } | |
4190 | ||
4191 | /* FIXME: set linker flags, | |
4192 | handle lib$initialize. */ | |
4193 | } | |
4194 | ||
4195 | return TRUE; | |
4196 | } | |
4197 | ||
4198 | /* ELF file flag handling: */ | |
4199 | ||
4200 | /* Function to keep IA-64 specific file flags. */ | |
4201 | static bfd_boolean | |
4202 | elf64_ia64_set_private_flags (bfd *abfd, flagword flags) | |
4203 | { | |
4204 | BFD_ASSERT (!elf_flags_init (abfd) | |
4205 | || elf_elfheader (abfd)->e_flags == flags); | |
4206 | ||
4207 | elf_elfheader (abfd)->e_flags = flags; | |
4208 | elf_flags_init (abfd) = TRUE; | |
4209 | return TRUE; | |
4210 | } | |
4211 | ||
4212 | /* Merge backend specific data from an object file to the output | |
4213 | object file when linking. */ | |
4214 | static bfd_boolean | |
50e03d47 | 4215 | elf64_ia64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
202e2356 | 4216 | { |
50e03d47 | 4217 | bfd *obfd = info->output_bfd; |
202e2356 NC |
4218 | flagword out_flags; |
4219 | flagword in_flags; | |
4220 | bfd_boolean ok = TRUE; | |
4221 | ||
4222 | /* Don't even pretend to support mixed-format linking. */ | |
4223 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
4224 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
4225 | return FALSE; | |
4226 | ||
4227 | in_flags = elf_elfheader (ibfd)->e_flags; | |
4228 | out_flags = elf_elfheader (obfd)->e_flags; | |
4229 | ||
4230 | if (! elf_flags_init (obfd)) | |
4231 | { | |
4232 | elf_flags_init (obfd) = TRUE; | |
4233 | elf_elfheader (obfd)->e_flags = in_flags; | |
4234 | ||
4235 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
4236 | && bfd_get_arch_info (obfd)->the_default) | |
4237 | { | |
4238 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
4239 | bfd_get_mach (ibfd)); | |
4240 | } | |
4241 | ||
4242 | return TRUE; | |
4243 | } | |
4244 | ||
4245 | /* Check flag compatibility. */ | |
4246 | if (in_flags == out_flags) | |
4247 | return TRUE; | |
4248 | ||
4249 | /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */ | |
4250 | if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP)) | |
4251 | elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP; | |
4252 | ||
4253 | if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL)) | |
4254 | { | |
4eca0228 | 4255 | _bfd_error_handler |
202e2356 NC |
4256 | (_("%B: linking trap-on-NULL-dereference with non-trapping files"), |
4257 | ibfd); | |
4258 | ||
4259 | bfd_set_error (bfd_error_bad_value); | |
4260 | ok = FALSE; | |
4261 | } | |
4262 | if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE)) | |
4263 | { | |
4eca0228 | 4264 | _bfd_error_handler |
202e2356 NC |
4265 | (_("%B: linking big-endian files with little-endian files"), |
4266 | ibfd); | |
4267 | ||
4268 | bfd_set_error (bfd_error_bad_value); | |
4269 | ok = FALSE; | |
4270 | } | |
4271 | if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64)) | |
4272 | { | |
4eca0228 | 4273 | _bfd_error_handler |
202e2356 NC |
4274 | (_("%B: linking 64-bit files with 32-bit files"), |
4275 | ibfd); | |
4276 | ||
4277 | bfd_set_error (bfd_error_bad_value); | |
4278 | ok = FALSE; | |
4279 | } | |
4280 | if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP)) | |
4281 | { | |
4eca0228 | 4282 | _bfd_error_handler |
202e2356 NC |
4283 | (_("%B: linking constant-gp files with non-constant-gp files"), |
4284 | ibfd); | |
4285 | ||
4286 | bfd_set_error (bfd_error_bad_value); | |
4287 | ok = FALSE; | |
4288 | } | |
4289 | if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP) | |
4290 | != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP)) | |
4291 | { | |
4eca0228 | 4292 | _bfd_error_handler |
202e2356 NC |
4293 | (_("%B: linking auto-pic files with non-auto-pic files"), |
4294 | ibfd); | |
4295 | ||
4296 | bfd_set_error (bfd_error_bad_value); | |
4297 | ok = FALSE; | |
4298 | } | |
4299 | ||
4300 | return ok; | |
4301 | } | |
4302 | ||
4303 | static bfd_boolean | |
4304 | elf64_ia64_print_private_bfd_data (bfd *abfd, void * ptr) | |
4305 | { | |
4306 | FILE *file = (FILE *) ptr; | |
4307 | flagword flags = elf_elfheader (abfd)->e_flags; | |
4308 | ||
4309 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
4310 | ||
4311 | fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n", | |
4312 | (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "", | |
4313 | (flags & EF_IA_64_EXT) ? "EXT, " : "", | |
4314 | (flags & EF_IA_64_BE) ? "BE, " : "LE, ", | |
4315 | (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "", | |
4316 | (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "", | |
4317 | (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "", | |
4318 | (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "", | |
4319 | (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32"); | |
4320 | ||
4321 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
4322 | return TRUE; | |
4323 | } | |
4324 | ||
4325 | static enum elf_reloc_type_class | |
7e612e98 AM |
4326 | elf64_ia64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
4327 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
4328 | const Elf_Internal_Rela *rela) | |
202e2356 NC |
4329 | { |
4330 | switch ((int) ELF64_R_TYPE (rela->r_info)) | |
4331 | { | |
4332 | case R_IA64_REL32MSB: | |
4333 | case R_IA64_REL32LSB: | |
4334 | case R_IA64_REL64MSB: | |
4335 | case R_IA64_REL64LSB: | |
4336 | return reloc_class_relative; | |
4337 | case R_IA64_IPLTMSB: | |
4338 | case R_IA64_IPLTLSB: | |
4339 | return reloc_class_plt; | |
4340 | case R_IA64_COPY: | |
4341 | return reloc_class_copy; | |
4342 | default: | |
4343 | return reloc_class_normal; | |
4344 | } | |
4345 | } | |
4346 | ||
4347 | static const struct bfd_elf_special_section elf64_ia64_special_sections[] = | |
4348 | { | |
4349 | { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT }, | |
4350 | { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT }, | |
4351 | { NULL, 0, 0, 0, 0 } | |
4352 | }; | |
4353 | ||
4354 | static bfd_boolean | |
4355 | elf64_ia64_object_p (bfd *abfd) | |
4356 | { | |
4357 | asection *sec; | |
4358 | asection *group, *unwi, *unw; | |
4359 | flagword flags; | |
4360 | const char *name; | |
4361 | char *unwi_name, *unw_name; | |
4362 | bfd_size_type amt; | |
4363 | ||
4364 | if (abfd->flags & DYNAMIC) | |
4365 | return TRUE; | |
4366 | ||
4367 | /* Flags for fake group section. */ | |
4368 | flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE | |
4369 | | SEC_EXCLUDE); | |
4370 | ||
4371 | /* We add a fake section group for each .gnu.linkonce.t.* section, | |
4372 | which isn't in a section group, and its unwind sections. */ | |
4373 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
4374 | { | |
4375 | if (elf_sec_group (sec) == NULL | |
4376 | && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP)) | |
4377 | == (SEC_LINK_ONCE | SEC_CODE)) | |
4378 | && CONST_STRNEQ (sec->name, ".gnu.linkonce.t.")) | |
4379 | { | |
4380 | name = sec->name + 16; | |
4381 | ||
4382 | amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi."); | |
4383 | unwi_name = bfd_alloc (abfd, amt); | |
4384 | if (!unwi_name) | |
4385 | return FALSE; | |
4386 | ||
4387 | strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name); | |
4388 | unwi = bfd_get_section_by_name (abfd, unwi_name); | |
4389 | ||
4390 | amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw."); | |
4391 | unw_name = bfd_alloc (abfd, amt); | |
4392 | if (!unw_name) | |
4393 | return FALSE; | |
4394 | ||
4395 | strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name); | |
4396 | unw = bfd_get_section_by_name (abfd, unw_name); | |
4397 | ||
4398 | /* We need to create a fake group section for it and its | |
4399 | unwind sections. */ | |
4400 | group = bfd_make_section_anyway_with_flags (abfd, name, | |
4401 | flags); | |
4402 | if (group == NULL) | |
4403 | return FALSE; | |
4404 | ||
4405 | /* Move the fake group section to the beginning. */ | |
4406 | bfd_section_list_remove (abfd, group); | |
4407 | bfd_section_list_prepend (abfd, group); | |
4408 | ||
4409 | elf_next_in_group (group) = sec; | |
4410 | ||
4411 | elf_group_name (sec) = name; | |
4412 | elf_next_in_group (sec) = sec; | |
4413 | elf_sec_group (sec) = group; | |
4414 | ||
4415 | if (unwi) | |
4416 | { | |
4417 | elf_group_name (unwi) = name; | |
4418 | elf_next_in_group (unwi) = sec; | |
4419 | elf_next_in_group (sec) = unwi; | |
4420 | elf_sec_group (unwi) = group; | |
4421 | } | |
4422 | ||
4423 | if (unw) | |
4424 | { | |
4425 | elf_group_name (unw) = name; | |
4426 | if (unwi) | |
4427 | { | |
4428 | elf_next_in_group (unw) = elf_next_in_group (unwi); | |
4429 | elf_next_in_group (unwi) = unw; | |
4430 | } | |
4431 | else | |
4432 | { | |
4433 | elf_next_in_group (unw) = sec; | |
4434 | elf_next_in_group (sec) = unw; | |
4435 | } | |
4436 | elf_sec_group (unw) = group; | |
4437 | } | |
4438 | ||
4439 | /* Fake SHT_GROUP section header. */ | |
4440 | elf_section_data (group)->this_hdr.bfd_section = group; | |
4441 | elf_section_data (group)->this_hdr.sh_type = SHT_GROUP; | |
4442 | } | |
4443 | } | |
4444 | return TRUE; | |
4445 | } | |
4446 | ||
4447 | /* Handle an IA-64 specific section when reading an object file. This | |
4448 | is called when bfd_section_from_shdr finds a section with an unknown | |
4449 | type. */ | |
4450 | ||
4451 | static bfd_boolean | |
4452 | elf64_vms_section_from_shdr (bfd *abfd, | |
4453 | Elf_Internal_Shdr *hdr, | |
4454 | const char *name, | |
4455 | int shindex) | |
4456 | { | |
4457 | flagword secflags = 0; | |
4458 | ||
4459 | switch (hdr->sh_type) | |
4460 | { | |
4461 | case SHT_IA_64_VMS_TRACE: | |
4462 | case SHT_IA_64_VMS_DEBUG: | |
4463 | case SHT_IA_64_VMS_DEBUG_STR: | |
4464 | secflags = SEC_DEBUGGING; | |
4465 | break; | |
4466 | ||
4467 | case SHT_IA_64_UNWIND: | |
4468 | case SHT_IA_64_HP_OPT_ANOT: | |
4469 | break; | |
4470 | ||
4471 | case SHT_IA_64_EXT: | |
4472 | if (strcmp (name, ELF_STRING_ia64_archext) != 0) | |
4473 | return FALSE; | |
4474 | break; | |
4475 | ||
4476 | default: | |
4477 | return FALSE; | |
4478 | } | |
4479 | ||
4480 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
4481 | return FALSE; | |
4482 | ||
4483 | if (secflags != 0) | |
4484 | { | |
4485 | asection *newsect = hdr->bfd_section; | |
4486 | ||
4487 | if (! bfd_set_section_flags | |
4488 | (abfd, newsect, bfd_get_section_flags (abfd, newsect) | secflags)) | |
4489 | return FALSE; | |
4490 | } | |
4491 | ||
4492 | return TRUE; | |
4493 | } | |
4494 | ||
4495 | static bfd_boolean | |
4496 | elf64_vms_object_p (bfd *abfd) | |
4497 | { | |
4498 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
4499 | Elf_Internal_Phdr *i_phdr = elf_tdata (abfd)->phdr; | |
4500 | unsigned int i; | |
4501 | unsigned int num_text = 0; | |
4502 | unsigned int num_data = 0; | |
4503 | unsigned int num_rodata = 0; | |
4504 | char name[16]; | |
4505 | ||
4506 | if (!elf64_ia64_object_p (abfd)) | |
4507 | return FALSE; | |
4508 | ||
4509 | /* Many VMS compilers do not generate sections for the corresponding | |
4510 | segment. This is boring as binutils tools won't be able to disassemble | |
4511 | the code. So we simply create all the missing sections. */ | |
4512 | for (i = 0; i < i_ehdrp->e_phnum; i++, i_phdr++) | |
4513 | { | |
4514 | /* Is there a section for this segment? */ | |
4515 | bfd_vma base_vma = i_phdr->p_vaddr; | |
4516 | bfd_vma limit_vma = base_vma + i_phdr->p_filesz; | |
4517 | ||
4518 | if (i_phdr->p_type != PT_LOAD) | |
4519 | continue; | |
4520 | ||
4521 | /* We need to cover from base_vms to limit_vma. */ | |
4522 | again: | |
4523 | while (base_vma < limit_vma) | |
4524 | { | |
4525 | bfd_vma next_vma = limit_vma; | |
4526 | asection *nsec; | |
4527 | asection *sec; | |
4528 | flagword flags; | |
4529 | char *nname = NULL; | |
4530 | ||
4531 | /* Find a section covering [base_vma;limit_vma) */ | |
4532 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
4533 | { | |
4534 | /* Skip uninteresting sections (either not in memory or | |
4535 | below base_vma. */ | |
4536 | if ((sec->flags & (SEC_ALLOC | SEC_LOAD)) == 0 | |
4537 | || sec->vma + sec->size <= base_vma) | |
4538 | continue; | |
4539 | if (sec->vma <= base_vma) | |
4540 | { | |
4541 | /* This section covers (maybe partially) the beginning | |
4542 | of the range. */ | |
4543 | base_vma = sec->vma + sec->size; | |
4544 | goto again; | |
4545 | } | |
4546 | if (sec->vma < next_vma) | |
4547 | { | |
4548 | /* This section partially covers the end of the range. | |
4549 | Used to compute the size of the hole. */ | |
4550 | next_vma = sec->vma; | |
4551 | } | |
4552 | } | |
4553 | ||
4554 | /* No section covering [base_vma; next_vma). Create a fake one. */ | |
4555 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS; | |
4556 | if (i_phdr->p_flags & PF_X) | |
4557 | { | |
4558 | flags |= SEC_CODE; | |
4559 | if (num_text++ == 0) | |
4560 | nname = ".text"; | |
4561 | else | |
4562 | sprintf (name, ".text$%u", num_text); | |
4563 | } | |
4564 | else if ((i_phdr->p_flags & (PF_R | PF_W)) == PF_R) | |
4565 | { | |
4566 | flags |= SEC_READONLY; | |
4567 | sprintf (name, ".rodata$%u", num_rodata++); | |
4568 | } | |
4569 | else | |
4570 | { | |
4571 | flags |= SEC_DATA; | |
4572 | sprintf (name, ".data$%u", num_data++); | |
4573 | } | |
4574 | ||
4575 | /* Allocate name. */ | |
4576 | if (nname == NULL) | |
4577 | { | |
4578 | size_t name_len = strlen (name) + 1; | |
4579 | nname = bfd_alloc (abfd, name_len); | |
4580 | if (nname == NULL) | |
4581 | return FALSE; | |
4582 | memcpy (nname, name, name_len); | |
4583 | } | |
4584 | ||
4585 | /* Create and fill new section. */ | |
4586 | nsec = bfd_make_section_anyway_with_flags (abfd, nname, flags); | |
4587 | if (nsec == NULL) | |
4588 | return FALSE; | |
4589 | nsec->vma = base_vma; | |
4590 | nsec->size = next_vma - base_vma; | |
4591 | nsec->filepos = i_phdr->p_offset + (base_vma - i_phdr->p_vaddr); | |
4592 | ||
4593 | base_vma = next_vma; | |
4594 | } | |
4595 | } | |
4596 | return TRUE; | |
4597 | } | |
4598 | ||
4599 | static void | |
4600 | elf64_vms_post_process_headers (bfd *abfd, | |
4601 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
4602 | { | |
4603 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
4604 | ||
4605 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_OPENVMS; | |
4606 | i_ehdrp->e_ident[EI_ABIVERSION] = 2; | |
4607 | } | |
4608 | ||
4609 | static bfd_boolean | |
4610 | elf64_vms_section_processing (bfd *abfd ATTRIBUTE_UNUSED, | |
4611 | Elf_Internal_Shdr *hdr) | |
4612 | { | |
4613 | if (hdr->bfd_section != NULL) | |
4614 | { | |
4615 | const char *name = bfd_get_section_name (abfd, hdr->bfd_section); | |
4616 | ||
4617 | if (strcmp (name, ".text") == 0) | |
4618 | hdr->sh_flags |= SHF_IA_64_VMS_SHARED; | |
4619 | else if ((strcmp (name, ".debug") == 0) | |
4620 | || (strcmp (name, ".debug_abbrev") == 0) | |
4621 | || (strcmp (name, ".debug_aranges") == 0) | |
4622 | || (strcmp (name, ".debug_frame") == 0) | |
4623 | || (strcmp (name, ".debug_info") == 0) | |
4624 | || (strcmp (name, ".debug_loc") == 0) | |
4625 | || (strcmp (name, ".debug_macinfo") == 0) | |
4626 | || (strcmp (name, ".debug_pubnames") == 0) | |
4627 | || (strcmp (name, ".debug_pubtypes") == 0)) | |
4628 | hdr->sh_type = SHT_IA_64_VMS_DEBUG; | |
4629 | else if ((strcmp (name, ".debug_line") == 0) | |
4630 | || (strcmp (name, ".debug_ranges") == 0) | |
4631 | || (strcmp (name, ".trace_info") == 0) | |
4632 | || (strcmp (name, ".trace_abbrev") == 0) | |
4633 | || (strcmp (name, ".trace_aranges") == 0)) | |
4634 | hdr->sh_type = SHT_IA_64_VMS_TRACE; | |
4635 | else if (strcmp (name, ".debug_str") == 0) | |
4636 | hdr->sh_type = SHT_IA_64_VMS_DEBUG_STR; | |
4637 | } | |
4638 | ||
4639 | return TRUE; | |
4640 | } | |
4641 | ||
4642 | /* The final processing done just before writing out a VMS IA-64 ELF | |
4643 | object file. */ | |
4644 | ||
4645 | static void | |
4646 | elf64_vms_final_write_processing (bfd *abfd, | |
4647 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
4648 | { | |
4649 | Elf_Internal_Shdr *hdr; | |
4650 | asection *s; | |
4651 | int unwind_info_sect_idx = 0; | |
4652 | ||
4653 | for (s = abfd->sections; s; s = s->next) | |
4654 | { | |
4655 | hdr = &elf_section_data (s)->this_hdr; | |
4656 | ||
4657 | if (strcmp (bfd_get_section_name (abfd, hdr->bfd_section), | |
4658 | ".IA_64.unwind_info") == 0) | |
4659 | unwind_info_sect_idx = elf_section_data (s)->this_idx; | |
4660 | ||
4661 | switch (hdr->sh_type) | |
4662 | { | |
4663 | case SHT_IA_64_UNWIND: | |
4664 | /* VMS requires sh_info to point to the unwind info section. */ | |
4665 | hdr->sh_info = unwind_info_sect_idx; | |
4666 | break; | |
4667 | } | |
4668 | } | |
4669 | ||
4670 | if (! elf_flags_init (abfd)) | |
4671 | { | |
4672 | unsigned long flags = 0; | |
4673 | ||
4674 | if (abfd->xvec->byteorder == BFD_ENDIAN_BIG) | |
4675 | flags |= EF_IA_64_BE; | |
4676 | if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64) | |
4677 | flags |= EF_IA_64_ABI64; | |
4678 | ||
4679 | elf_elfheader (abfd)->e_flags = flags; | |
4680 | elf_flags_init (abfd) = TRUE; | |
4681 | } | |
4682 | } | |
4683 | ||
4684 | static bfd_boolean | |
4685 | elf64_vms_write_shdrs_and_ehdr (bfd *abfd) | |
4686 | { | |
4687 | unsigned char needed_count[8]; | |
4688 | ||
4689 | if (!bfd_elf64_write_shdrs_and_ehdr (abfd)) | |
4690 | return FALSE; | |
4691 | ||
4692 | bfd_putl64 (elf_ia64_vms_tdata (abfd)->needed_count, needed_count); | |
4693 | ||
4694 | if (bfd_seek (abfd, sizeof (Elf64_External_Ehdr), SEEK_SET) != 0 | |
4695 | || bfd_bwrite (needed_count, 8, abfd) != 8) | |
4696 | return FALSE; | |
4697 | ||
4698 | return TRUE; | |
4699 | } | |
4700 | ||
4701 | static bfd_boolean | |
4702 | elf64_vms_close_and_cleanup (bfd *abfd) | |
4703 | { | |
4704 | if (bfd_get_format (abfd) == bfd_object) | |
4705 | { | |
4706 | long isize; | |
4707 | ||
4708 | /* Pad to 8 byte boundary for IPF/VMS. */ | |
4709 | isize = bfd_get_size (abfd); | |
4710 | if ((isize & 7) != 0) | |
4711 | { | |
4712 | int ishort = 8 - (isize & 7); | |
4713 | bfd_uint64_t pad = 0; | |
4714 | ||
4715 | bfd_seek (abfd, isize, SEEK_SET); | |
4716 | bfd_bwrite (&pad, ishort, abfd); | |
4717 | } | |
4718 | } | |
4719 | ||
4720 | return _bfd_elf_close_and_cleanup (abfd); | |
4721 | } | |
4722 | ||
4723 | /* Add symbols from an ELF object file to the linker hash table. */ | |
4724 | ||
4725 | static bfd_boolean | |
4726 | elf64_vms_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) | |
4727 | { | |
4728 | Elf_Internal_Shdr *hdr; | |
4729 | bfd_size_type symcount; | |
4730 | bfd_size_type extsymcount; | |
4731 | bfd_size_type extsymoff; | |
4732 | struct elf_link_hash_entry **sym_hash; | |
4733 | bfd_boolean dynamic; | |
4734 | Elf_Internal_Sym *isymbuf = NULL; | |
4735 | Elf_Internal_Sym *isym; | |
4736 | Elf_Internal_Sym *isymend; | |
4737 | const struct elf_backend_data *bed; | |
4738 | struct elf_link_hash_table *htab; | |
4739 | bfd_size_type amt; | |
4740 | ||
4741 | htab = elf_hash_table (info); | |
4742 | bed = get_elf_backend_data (abfd); | |
4743 | ||
4744 | if ((abfd->flags & DYNAMIC) == 0) | |
4745 | dynamic = FALSE; | |
4746 | else | |
4747 | { | |
4748 | dynamic = TRUE; | |
4749 | ||
4750 | /* You can't use -r against a dynamic object. Also, there's no | |
4751 | hope of using a dynamic object which does not exactly match | |
4752 | the format of the output file. */ | |
0e1862bb | 4753 | if (bfd_link_relocatable (info) |
202e2356 NC |
4754 | || !is_elf_hash_table (htab) |
4755 | || info->output_bfd->xvec != abfd->xvec) | |
4756 | { | |
0e1862bb | 4757 | if (bfd_link_relocatable (info)) |
202e2356 NC |
4758 | bfd_set_error (bfd_error_invalid_operation); |
4759 | else | |
4760 | bfd_set_error (bfd_error_wrong_format); | |
4761 | goto error_return; | |
4762 | } | |
4763 | } | |
4764 | ||
4765 | if (! dynamic) | |
4766 | { | |
4767 | /* If we are creating a shared library, create all the dynamic | |
4768 | sections immediately. We need to attach them to something, | |
4769 | so we attach them to this BFD, provided it is the right | |
4770 | format. FIXME: If there are no input BFD's of the same | |
4771 | format as the output, we can't make a shared library. */ | |
0e1862bb | 4772 | if (bfd_link_pic (info) |
202e2356 NC |
4773 | && is_elf_hash_table (htab) |
4774 | && info->output_bfd->xvec == abfd->xvec | |
4775 | && !htab->dynamic_sections_created) | |
4776 | { | |
4777 | if (! elf64_ia64_create_dynamic_sections (abfd, info)) | |
4778 | goto error_return; | |
4779 | } | |
4780 | } | |
4781 | else if (!is_elf_hash_table (htab)) | |
4782 | goto error_return; | |
4783 | else | |
4784 | { | |
4785 | asection *s; | |
4786 | bfd_byte *dynbuf; | |
4787 | bfd_byte *extdyn; | |
4788 | ||
4789 | /* ld --just-symbols and dynamic objects don't mix very well. | |
4790 | ld shouldn't allow it. */ | |
4791 | if ((s = abfd->sections) != NULL | |
dbaa2011 | 4792 | && s->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
202e2356 NC |
4793 | abort (); |
4794 | ||
4795 | /* Be sure there are dynamic sections. */ | |
4796 | if (! elf64_ia64_create_dynamic_sections (htab->dynobj, info)) | |
4797 | goto error_return; | |
4798 | ||
4799 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
4800 | if (s == NULL) | |
4801 | { | |
4802 | /* VMS libraries do not have dynamic sections. Create one from | |
4803 | the segment. */ | |
4804 | Elf_Internal_Phdr *phdr; | |
4805 | unsigned int i, phnum; | |
4806 | ||
4807 | phdr = elf_tdata (abfd)->phdr; | |
4808 | if (phdr == NULL) | |
4809 | goto error_return; | |
4810 | phnum = elf_elfheader (abfd)->e_phnum; | |
4811 | for (i = 0; i < phnum; phdr++) | |
4812 | if (phdr->p_type == PT_DYNAMIC) | |
4813 | { | |
4814 | s = bfd_make_section (abfd, ".dynamic"); | |
4815 | if (s == NULL) | |
4816 | goto error_return; | |
4817 | s->vma = phdr->p_vaddr; | |
4818 | s->lma = phdr->p_paddr; | |
4819 | s->size = phdr->p_filesz; | |
4820 | s->filepos = phdr->p_offset; | |
4821 | s->flags |= SEC_HAS_CONTENTS; | |
4822 | s->alignment_power = bfd_log2 (phdr->p_align); | |
4823 | break; | |
4824 | } | |
4825 | if (s == NULL) | |
4826 | goto error_return; | |
4827 | } | |
4828 | ||
4829 | /* Extract IDENT. */ | |
4830 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) | |
4831 | { | |
4832 | error_free_dyn: | |
4833 | free (dynbuf); | |
4834 | goto error_return; | |
4835 | } | |
4836 | ||
4837 | for (extdyn = dynbuf; | |
4838 | extdyn < dynbuf + s->size; | |
4839 | extdyn += bed->s->sizeof_dyn) | |
4840 | { | |
4841 | Elf_Internal_Dyn dyn; | |
4842 | ||
4843 | bed->s->swap_dyn_in (abfd, extdyn, &dyn); | |
4844 | if (dyn.d_tag == DT_IA_64_VMS_IDENT) | |
4845 | { | |
4846 | bfd_uint64_t tagv = dyn.d_un.d_val; | |
4847 | elf_ia64_vms_ident (abfd) = tagv; | |
4848 | break; | |
4849 | } | |
4850 | } | |
4851 | if (extdyn >= dynbuf + s->size) | |
4852 | { | |
4853 | /* Ident not found. */ | |
4854 | goto error_free_dyn; | |
4855 | } | |
4856 | free (dynbuf); | |
4857 | ||
4858 | /* We do not want to include any of the sections in a dynamic | |
4859 | object in the output file. We hack by simply clobbering the | |
4860 | list of sections in the BFD. This could be handled more | |
4861 | cleanly by, say, a new section flag; the existing | |
4862 | SEC_NEVER_LOAD flag is not the one we want, because that one | |
4863 | still implies that the section takes up space in the output | |
4864 | file. */ | |
4865 | bfd_section_list_clear (abfd); | |
4866 | ||
4867 | /* FIXME: should we detect if this library is already included ? | |
4868 | This should be harmless and shouldn't happen in practice. */ | |
4869 | } | |
4870 | ||
4871 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
4872 | symcount = hdr->sh_size / bed->s->sizeof_sym; | |
4873 | ||
4874 | /* The sh_info field of the symtab header tells us where the | |
4875 | external symbols start. We don't care about the local symbols at | |
4876 | this point. */ | |
4877 | extsymcount = symcount - hdr->sh_info; | |
4878 | extsymoff = hdr->sh_info; | |
4879 | ||
4880 | sym_hash = NULL; | |
4881 | if (extsymcount != 0) | |
4882 | { | |
4883 | isymbuf = bfd_elf_get_elf_syms (abfd, hdr, extsymcount, extsymoff, | |
4884 | NULL, NULL, NULL); | |
4885 | if (isymbuf == NULL) | |
4886 | goto error_return; | |
4887 | ||
4888 | /* We store a pointer to the hash table entry for each external | |
4889 | symbol. */ | |
4890 | amt = extsymcount * sizeof (struct elf_link_hash_entry *); | |
4891 | sym_hash = (struct elf_link_hash_entry **) bfd_alloc (abfd, amt); | |
4892 | if (sym_hash == NULL) | |
4893 | goto error_free_sym; | |
4894 | elf_sym_hashes (abfd) = sym_hash; | |
4895 | } | |
4896 | ||
4897 | for (isym = isymbuf, isymend = isymbuf + extsymcount; | |
4898 | isym < isymend; | |
4899 | isym++, sym_hash++) | |
4900 | { | |
4901 | int bind; | |
4902 | bfd_vma value; | |
4903 | asection *sec, *new_sec; | |
4904 | flagword flags; | |
4905 | const char *name; | |
4906 | struct elf_link_hash_entry *h; | |
4907 | bfd_boolean definition; | |
4908 | bfd_boolean size_change_ok; | |
4909 | bfd_boolean type_change_ok; | |
4910 | bfd_boolean common; | |
4911 | unsigned int old_alignment; | |
4912 | bfd *old_bfd; | |
4913 | ||
4914 | flags = BSF_NO_FLAGS; | |
4915 | sec = NULL; | |
4916 | value = isym->st_value; | |
4917 | *sym_hash = NULL; | |
4918 | common = bed->common_definition (isym); | |
4919 | ||
4920 | bind = ELF_ST_BIND (isym->st_info); | |
4921 | switch (bind) | |
4922 | { | |
4923 | case STB_LOCAL: | |
4924 | /* This should be impossible, since ELF requires that all | |
4925 | global symbols follow all local symbols, and that sh_info | |
4926 | point to the first global symbol. Unfortunately, Irix 5 | |
4927 | screws this up. */ | |
4928 | continue; | |
4929 | ||
4930 | case STB_GLOBAL: | |
4931 | if (isym->st_shndx != SHN_UNDEF && !common) | |
4932 | flags = BSF_GLOBAL; | |
4933 | break; | |
4934 | ||
4935 | case STB_WEAK: | |
4936 | flags = BSF_WEAK; | |
4937 | break; | |
4938 | ||
4939 | case STB_GNU_UNIQUE: | |
4940 | flags = BSF_GNU_UNIQUE; | |
4941 | break; | |
4942 | ||
4943 | default: | |
4944 | /* Leave it up to the processor backend. */ | |
4945 | break; | |
4946 | } | |
4947 | ||
4948 | if (isym->st_shndx == SHN_UNDEF) | |
4949 | sec = bfd_und_section_ptr; | |
4950 | else if (isym->st_shndx == SHN_ABS) | |
4951 | sec = bfd_abs_section_ptr; | |
4952 | else if (isym->st_shndx == SHN_COMMON) | |
4953 | { | |
4954 | sec = bfd_com_section_ptr; | |
4955 | /* What ELF calls the size we call the value. What ELF | |
4956 | calls the value we call the alignment. */ | |
4957 | value = isym->st_size; | |
4958 | } | |
4959 | else | |
4960 | { | |
4961 | sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
4962 | if (sec == NULL) | |
4963 | sec = bfd_abs_section_ptr; | |
4964 | else if (sec->kept_section) | |
4965 | { | |
4966 | /* Symbols from discarded section are undefined. We keep | |
4967 | its visibility. */ | |
4968 | sec = bfd_und_section_ptr; | |
4969 | isym->st_shndx = SHN_UNDEF; | |
4970 | } | |
4971 | else if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
4972 | value -= sec->vma; | |
4973 | } | |
4974 | ||
4975 | name = bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
4976 | isym->st_name); | |
4977 | if (name == NULL) | |
4978 | goto error_free_vers; | |
4979 | ||
4980 | if (bed->elf_add_symbol_hook) | |
4981 | { | |
4982 | if (! (*bed->elf_add_symbol_hook) (abfd, info, isym, &name, &flags, | |
4983 | &sec, &value)) | |
4984 | goto error_free_vers; | |
4985 | ||
4986 | /* The hook function sets the name to NULL if this symbol | |
4987 | should be skipped for some reason. */ | |
4988 | if (name == NULL) | |
4989 | continue; | |
4990 | } | |
4991 | ||
4992 | /* Sanity check that all possibilities were handled. */ | |
4993 | if (sec == NULL) | |
4994 | { | |
4995 | bfd_set_error (bfd_error_bad_value); | |
4996 | goto error_free_vers; | |
4997 | } | |
4998 | ||
4999 | if (bfd_is_und_section (sec) | |
5000 | || bfd_is_com_section (sec)) | |
5001 | definition = FALSE; | |
5002 | else | |
5003 | definition = TRUE; | |
5004 | ||
5005 | size_change_ok = FALSE; | |
5006 | type_change_ok = bed->type_change_ok; | |
5007 | old_alignment = 0; | |
5008 | old_bfd = NULL; | |
5009 | new_sec = sec; | |
5010 | ||
5011 | if (! bfd_is_und_section (sec)) | |
5012 | h = elf_link_hash_lookup (htab, name, TRUE, FALSE, FALSE); | |
5013 | else | |
5014 | h = ((struct elf_link_hash_entry *) bfd_wrapped_link_hash_lookup | |
5015 | (abfd, info, name, TRUE, FALSE, FALSE)); | |
5016 | if (h == NULL) | |
5017 | goto error_free_sym; | |
5018 | ||
5019 | *sym_hash = h; | |
5020 | ||
5021 | if (is_elf_hash_table (htab)) | |
5022 | { | |
5023 | while (h->root.type == bfd_link_hash_indirect | |
5024 | || h->root.type == bfd_link_hash_warning) | |
5025 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5026 | ||
5027 | /* Remember the old alignment if this is a common symbol, so | |
5028 | that we don't reduce the alignment later on. We can't | |
5029 | check later, because _bfd_generic_link_add_one_symbol | |
5030 | will set a default for the alignment which we want to | |
5031 | override. We also remember the old bfd where the existing | |
5032 | definition comes from. */ | |
5033 | switch (h->root.type) | |
5034 | { | |
5035 | default: | |
5036 | break; | |
5037 | ||
5038 | case bfd_link_hash_defined: | |
5039 | if (abfd->selective_search) | |
5040 | continue; | |
5041 | /* Fall-through. */ | |
5042 | case bfd_link_hash_defweak: | |
5043 | old_bfd = h->root.u.def.section->owner; | |
5044 | break; | |
5045 | ||
5046 | case bfd_link_hash_common: | |
5047 | old_bfd = h->root.u.c.p->section->owner; | |
5048 | old_alignment = h->root.u.c.p->alignment_power; | |
5049 | break; | |
5050 | } | |
5051 | } | |
5052 | ||
5053 | if (! (_bfd_generic_link_add_one_symbol | |
5054 | (info, abfd, name, flags, sec, value, NULL, FALSE, bed->collect, | |
5055 | (struct bfd_link_hash_entry **) sym_hash))) | |
5056 | goto error_free_vers; | |
5057 | ||
5058 | h = *sym_hash; | |
5059 | while (h->root.type == bfd_link_hash_indirect | |
5060 | || h->root.type == bfd_link_hash_warning) | |
5061 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5062 | ||
5063 | *sym_hash = h; | |
35399224 L |
5064 | if (definition) |
5065 | h->unique_global = (flags & BSF_GNU_UNIQUE) != 0; | |
202e2356 NC |
5066 | |
5067 | /* Set the alignment of a common symbol. */ | |
5068 | if ((common || bfd_is_com_section (sec)) | |
5069 | && h->root.type == bfd_link_hash_common) | |
5070 | { | |
5071 | unsigned int align; | |
5072 | ||
5073 | if (common) | |
5074 | align = bfd_log2 (isym->st_value); | |
5075 | else | |
5076 | { | |
5077 | /* The new symbol is a common symbol in a shared object. | |
5078 | We need to get the alignment from the section. */ | |
5079 | align = new_sec->alignment_power; | |
5080 | } | |
5081 | if (align > old_alignment | |
5082 | /* Permit an alignment power of zero if an alignment of one | |
5083 | is specified and no other alignments have been specified. */ | |
5084 | || (isym->st_value == 1 && old_alignment == 0)) | |
5085 | h->root.u.c.p->alignment_power = align; | |
5086 | else | |
5087 | h->root.u.c.p->alignment_power = old_alignment; | |
5088 | } | |
5089 | ||
5090 | if (is_elf_hash_table (htab)) | |
5091 | { | |
5092 | /* Check the alignment when a common symbol is involved. This | |
5093 | can change when a common symbol is overridden by a normal | |
5094 | definition or a common symbol is ignored due to the old | |
5095 | normal definition. We need to make sure the maximum | |
5096 | alignment is maintained. */ | |
5097 | if ((old_alignment || common) | |
5098 | && h->root.type != bfd_link_hash_common) | |
5099 | { | |
5100 | unsigned int common_align; | |
5101 | unsigned int normal_align; | |
5102 | unsigned int symbol_align; | |
5103 | bfd *normal_bfd; | |
5104 | bfd *common_bfd; | |
5105 | ||
5106 | symbol_align = ffs (h->root.u.def.value) - 1; | |
5107 | if (h->root.u.def.section->owner != NULL | |
5108 | && (h->root.u.def.section->owner->flags & DYNAMIC) == 0) | |
5109 | { | |
5110 | normal_align = h->root.u.def.section->alignment_power; | |
5111 | if (normal_align > symbol_align) | |
5112 | normal_align = symbol_align; | |
5113 | } | |
5114 | else | |
5115 | normal_align = symbol_align; | |
5116 | ||
5117 | if (old_alignment) | |
5118 | { | |
5119 | common_align = old_alignment; | |
5120 | common_bfd = old_bfd; | |
5121 | normal_bfd = abfd; | |
5122 | } | |
5123 | else | |
5124 | { | |
5125 | common_align = bfd_log2 (isym->st_value); | |
5126 | common_bfd = abfd; | |
5127 | normal_bfd = old_bfd; | |
5128 | } | |
5129 | ||
5130 | if (normal_align < common_align) | |
5131 | { | |
5132 | /* PR binutils/2735 */ | |
5133 | if (normal_bfd == NULL) | |
4eca0228 | 5134 | _bfd_error_handler |
695344c0 | 5135 | /* xgettext:c-format */ |
202e2356 NC |
5136 | (_("Warning: alignment %u of common symbol `%s' in %B" |
5137 | " is greater than the alignment (%u) of its section %A"), | |
5138 | common_bfd, h->root.u.def.section, | |
5139 | 1 << common_align, name, 1 << normal_align); | |
5140 | else | |
4eca0228 | 5141 | _bfd_error_handler |
695344c0 | 5142 | /* xgettext:c-format */ |
202e2356 NC |
5143 | (_("Warning: alignment %u of symbol `%s' in %B" |
5144 | " is smaller than %u in %B"), | |
5145 | normal_bfd, common_bfd, | |
5146 | 1 << normal_align, name, 1 << common_align); | |
5147 | } | |
5148 | } | |
5149 | ||
5150 | /* Remember the symbol size if it isn't undefined. */ | |
5151 | if ((isym->st_size != 0 && isym->st_shndx != SHN_UNDEF) | |
5152 | && (definition || h->size == 0)) | |
5153 | { | |
5154 | if (h->size != 0 | |
5155 | && h->size != isym->st_size | |
5156 | && ! size_change_ok) | |
4eca0228 | 5157 | _bfd_error_handler |
695344c0 | 5158 | /* xgettext:c-format */ |
202e2356 NC |
5159 | (_("Warning: size of symbol `%s' changed" |
5160 | " from %lu in %B to %lu in %B"), | |
5161 | old_bfd, abfd, | |
5162 | name, (unsigned long) h->size, | |
5163 | (unsigned long) isym->st_size); | |
5164 | ||
5165 | h->size = isym->st_size; | |
5166 | } | |
5167 | ||
5168 | /* If this is a common symbol, then we always want H->SIZE | |
5169 | to be the size of the common symbol. The code just above | |
5170 | won't fix the size if a common symbol becomes larger. We | |
5171 | don't warn about a size change here, because that is | |
5172 | covered by --warn-common. Allow changed between different | |
5173 | function types. */ | |
5174 | if (h->root.type == bfd_link_hash_common) | |
5175 | h->size = h->root.u.c.size; | |
5176 | ||
5177 | if (ELF_ST_TYPE (isym->st_info) != STT_NOTYPE | |
5178 | && (definition || h->type == STT_NOTYPE)) | |
5179 | { | |
5180 | unsigned int type = ELF_ST_TYPE (isym->st_info); | |
5181 | ||
5182 | if (h->type != type) | |
5183 | { | |
5184 | if (h->type != STT_NOTYPE && ! type_change_ok) | |
4eca0228 | 5185 | _bfd_error_handler |
695344c0 | 5186 | /* xgettext:c-format */ |
202e2356 NC |
5187 | (_("Warning: type of symbol `%s' changed" |
5188 | " from %d to %d in %B"), | |
5189 | abfd, name, h->type, type); | |
5190 | ||
5191 | h->type = type; | |
5192 | } | |
5193 | } | |
5194 | ||
5195 | /* Set a flag in the hash table entry indicating the type of | |
5196 | reference or definition we just found. Keep a count of | |
5197 | the number of dynamic symbols we find. A dynamic symbol | |
5198 | is one which is referenced or defined by both a regular | |
5199 | object and a shared object. */ | |
5200 | if (! dynamic) | |
5201 | { | |
5202 | if (! definition) | |
5203 | { | |
5204 | h->ref_regular = 1; | |
5205 | if (bind != STB_WEAK) | |
5206 | h->ref_regular_nonweak = 1; | |
5207 | } | |
5208 | else | |
5209 | { | |
5210 | BFD_ASSERT (!h->def_dynamic); | |
5211 | h->def_regular = 1; | |
5212 | } | |
5213 | } | |
5214 | else | |
5215 | { | |
5216 | BFD_ASSERT (definition); | |
5217 | h->def_dynamic = 1; | |
5218 | h->dynindx = -2; | |
5219 | ((struct elf64_ia64_link_hash_entry *)h)->shl = abfd; | |
5220 | } | |
5221 | } | |
5222 | } | |
5223 | ||
5224 | if (isymbuf != NULL) | |
5225 | { | |
5226 | free (isymbuf); | |
5227 | isymbuf = NULL; | |
5228 | } | |
5229 | ||
5230 | /* If this object is the same format as the output object, and it is | |
5231 | not a shared library, then let the backend look through the | |
5232 | relocs. | |
5233 | ||
5234 | This is required to build global offset table entries and to | |
5235 | arrange for dynamic relocs. It is not required for the | |
5236 | particular common case of linking non PIC code, even when linking | |
5237 | against shared libraries, but unfortunately there is no way of | |
5238 | knowing whether an object file has been compiled PIC or not. | |
5239 | Looking through the relocs is not particularly time consuming. | |
5240 | The problem is that we must either (1) keep the relocs in memory, | |
5241 | which causes the linker to require additional runtime memory or | |
5242 | (2) read the relocs twice from the input file, which wastes time. | |
5243 | This would be a good case for using mmap. | |
5244 | ||
5245 | I have no idea how to handle linking PIC code into a file of a | |
5246 | different format. It probably can't be done. */ | |
5247 | if (! dynamic | |
5248 | && is_elf_hash_table (htab) | |
5249 | && bed->check_relocs != NULL | |
5250 | && (*bed->relocs_compatible) (abfd->xvec, info->output_bfd->xvec)) | |
5251 | { | |
5252 | asection *o; | |
5253 | ||
5254 | for (o = abfd->sections; o != NULL; o = o->next) | |
5255 | { | |
5256 | Elf_Internal_Rela *internal_relocs; | |
5257 | bfd_boolean ok; | |
5258 | ||
5259 | if ((o->flags & SEC_RELOC) == 0 | |
5260 | || o->reloc_count == 0 | |
5261 | || ((info->strip == strip_all || info->strip == strip_debugger) | |
5262 | && (o->flags & SEC_DEBUGGING) != 0) | |
5263 | || bfd_is_abs_section (o->output_section)) | |
5264 | continue; | |
5265 | ||
5266 | internal_relocs = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, | |
5267 | info->keep_memory); | |
5268 | if (internal_relocs == NULL) | |
5269 | goto error_return; | |
5270 | ||
5271 | ok = (*bed->check_relocs) (abfd, info, o, internal_relocs); | |
5272 | ||
5273 | if (elf_section_data (o)->relocs != internal_relocs) | |
5274 | free (internal_relocs); | |
5275 | ||
5276 | if (! ok) | |
5277 | goto error_return; | |
5278 | } | |
5279 | } | |
5280 | ||
5281 | return TRUE; | |
5282 | ||
5283 | error_free_vers: | |
5284 | error_free_sym: | |
5285 | if (isymbuf != NULL) | |
5286 | free (isymbuf); | |
5287 | error_return: | |
5288 | return FALSE; | |
5289 | } | |
5290 | ||
5291 | static bfd_boolean | |
5292 | elf64_vms_link_add_archive_symbols (bfd *abfd, struct bfd_link_info *info) | |
5293 | { | |
5294 | int pass; | |
5295 | struct bfd_link_hash_entry **pundef; | |
5296 | struct bfd_link_hash_entry **next_pundef; | |
5297 | ||
5298 | /* We only accept VMS libraries. */ | |
5299 | if (info->output_bfd->xvec != abfd->xvec) | |
5300 | { | |
5301 | bfd_set_error (bfd_error_wrong_format); | |
5302 | return FALSE; | |
5303 | } | |
5304 | ||
5305 | /* The archive_pass field in the archive itself is used to | |
5306 | initialize PASS, since we may search the same archive multiple | |
5307 | times. */ | |
5308 | pass = ++abfd->archive_pass; | |
5309 | ||
5310 | /* Look through the list of undefined symbols. */ | |
5311 | for (pundef = &info->hash->undefs; *pundef != NULL; pundef = next_pundef) | |
5312 | { | |
5313 | struct bfd_link_hash_entry *h; | |
5314 | symindex symidx; | |
5315 | bfd *element; | |
5316 | bfd *orig_element; | |
5317 | ||
5318 | h = *pundef; | |
5319 | next_pundef = &(*pundef)->u.undef.next; | |
5320 | ||
5321 | /* When a symbol is defined, it is not necessarily removed from | |
5322 | the list. */ | |
5323 | if (h->type != bfd_link_hash_undefined | |
5324 | && h->type != bfd_link_hash_common) | |
5325 | { | |
5326 | /* Remove this entry from the list, for general cleanliness | |
5327 | and because we are going to look through the list again | |
5328 | if we search any more libraries. We can't remove the | |
5329 | entry if it is the tail, because that would lose any | |
5330 | entries we add to the list later on. */ | |
5331 | if (*pundef != info->hash->undefs_tail) | |
5332 | { | |
5333 | *pundef = *next_pundef; | |
5334 | next_pundef = pundef; | |
5335 | } | |
5336 | continue; | |
5337 | } | |
5338 | ||
5339 | /* Look for this symbol in the archive hash table. */ | |
5340 | symidx = _bfd_vms_lib_find_symbol (abfd, h->root.string); | |
5341 | if (symidx == BFD_NO_MORE_SYMBOLS) | |
5342 | { | |
5343 | /* Nothing in this slot. */ | |
5344 | continue; | |
5345 | } | |
5346 | ||
5347 | element = bfd_get_elt_at_index (abfd, symidx); | |
5348 | if (element == NULL) | |
5349 | return FALSE; | |
5350 | ||
5351 | if (element->archive_pass == -1 || element->archive_pass == pass) | |
5352 | { | |
5353 | /* Next symbol if this archive is wrong or already handled. */ | |
5354 | continue; | |
5355 | } | |
5356 | ||
5357 | orig_element = element; | |
5358 | if (bfd_is_thin_archive (abfd)) | |
5359 | { | |
5360 | element = _bfd_vms_lib_get_imagelib_file (element); | |
5361 | if (element == NULL || !bfd_check_format (element, bfd_object)) | |
5362 | { | |
5363 | orig_element->archive_pass = -1; | |
5364 | return FALSE; | |
5365 | } | |
5366 | } | |
5367 | else if (! bfd_check_format (element, bfd_object)) | |
5368 | { | |
5369 | element->archive_pass = -1; | |
5370 | return FALSE; | |
5371 | } | |
5372 | ||
5373 | /* Unlike the generic linker, we know that this element provides | |
5374 | a definition for an undefined symbol and we know that we want | |
5375 | to include it. We don't need to check anything. */ | |
5376 | if (! (*info->callbacks->add_archive_element) (info, element, | |
5377 | h->root.string, &element)) | |
b95a0a31 | 5378 | continue; |
202e2356 NC |
5379 | if (! elf64_vms_link_add_object_symbols (element, info)) |
5380 | return FALSE; | |
5381 | ||
5382 | orig_element->archive_pass = pass; | |
5383 | } | |
5384 | ||
5385 | return TRUE; | |
5386 | } | |
5387 | ||
5388 | static bfd_boolean | |
5389 | elf64_vms_bfd_link_add_symbols (bfd *abfd, struct bfd_link_info *info) | |
5390 | { | |
5391 | switch (bfd_get_format (abfd)) | |
5392 | { | |
5393 | case bfd_object: | |
5394 | return elf64_vms_link_add_object_symbols (abfd, info); | |
5395 | break; | |
5396 | case bfd_archive: | |
5397 | return elf64_vms_link_add_archive_symbols (abfd, info); | |
5398 | break; | |
5399 | default: | |
5400 | bfd_set_error (bfd_error_wrong_format); | |
5401 | return FALSE; | |
5402 | } | |
5403 | } | |
5404 | ||
5405 | static bfd_boolean | |
5406 | elf64_ia64_vms_mkobject (bfd *abfd) | |
5407 | { | |
5408 | return bfd_elf_allocate_object | |
5409 | (abfd, sizeof (struct elf64_ia64_vms_obj_tdata), IA64_ELF_DATA); | |
5410 | } | |
5411 | ||
5412 | ||
5413 | /* Size-dependent data and functions. */ | |
5414 | static const struct elf_size_info elf64_ia64_vms_size_info = { | |
5415 | sizeof (Elf64_External_VMS_Ehdr), | |
5416 | sizeof (Elf64_External_Phdr), | |
5417 | sizeof (Elf64_External_Shdr), | |
5418 | sizeof (Elf64_External_Rel), | |
5419 | sizeof (Elf64_External_Rela), | |
5420 | sizeof (Elf64_External_Sym), | |
5421 | sizeof (Elf64_External_Dyn), | |
5422 | sizeof (Elf_External_Note), | |
5423 | 4, | |
5424 | 1, | |
5425 | 64, 3, /* ARCH_SIZE, LOG_FILE_ALIGN */ | |
5426 | ELFCLASS64, EV_CURRENT, | |
5427 | bfd_elf64_write_out_phdrs, | |
5428 | elf64_vms_write_shdrs_and_ehdr, | |
5429 | bfd_elf64_checksum_contents, | |
5430 | bfd_elf64_write_relocs, | |
5431 | bfd_elf64_swap_symbol_in, | |
5432 | bfd_elf64_swap_symbol_out, | |
5433 | bfd_elf64_slurp_reloc_table, | |
5434 | bfd_elf64_slurp_symbol_table, | |
5435 | bfd_elf64_swap_dyn_in, | |
5436 | bfd_elf64_swap_dyn_out, | |
5437 | bfd_elf64_swap_reloc_in, | |
5438 | bfd_elf64_swap_reloc_out, | |
5439 | bfd_elf64_swap_reloca_in, | |
5440 | bfd_elf64_swap_reloca_out | |
5441 | }; | |
5442 | ||
5443 | #define ELF_ARCH bfd_arch_ia64 | |
5444 | #define ELF_MACHINE_CODE EM_IA_64 | |
5445 | #define ELF_MAXPAGESIZE 0x10000 /* 64KB */ | |
5446 | #define ELF_COMMONPAGESIZE 0x200 /* 16KB */ | |
5447 | ||
5448 | #define elf_backend_section_from_shdr \ | |
5449 | elf64_ia64_section_from_shdr | |
5450 | #define elf_backend_section_flags \ | |
5451 | elf64_ia64_section_flags | |
5452 | #define elf_backend_fake_sections \ | |
5453 | elf64_ia64_fake_sections | |
5454 | #define elf_backend_final_write_processing \ | |
5455 | elf64_ia64_final_write_processing | |
5456 | #define elf_backend_add_symbol_hook \ | |
5457 | elf64_ia64_add_symbol_hook | |
5458 | #define elf_info_to_howto \ | |
5459 | elf64_ia64_info_to_howto | |
5460 | ||
5461 | #define bfd_elf64_bfd_reloc_type_lookup \ | |
5462 | ia64_elf_reloc_type_lookup | |
5463 | #define bfd_elf64_bfd_reloc_name_lookup \ | |
5464 | ia64_elf_reloc_name_lookup | |
5465 | #define bfd_elf64_bfd_is_local_label_name \ | |
5466 | elf64_ia64_is_local_label_name | |
5467 | #define bfd_elf64_bfd_relax_section \ | |
5468 | elf64_ia64_relax_section | |
5469 | ||
5470 | #define elf_backend_object_p \ | |
5471 | elf64_ia64_object_p | |
5472 | ||
5473 | /* Stuff for the BFD linker: */ | |
5474 | #define bfd_elf64_bfd_link_hash_table_create \ | |
5475 | elf64_ia64_hash_table_create | |
202e2356 NC |
5476 | #define elf_backend_create_dynamic_sections \ |
5477 | elf64_ia64_create_dynamic_sections | |
5478 | #define elf_backend_check_relocs \ | |
5479 | elf64_ia64_check_relocs | |
5480 | #define elf_backend_adjust_dynamic_symbol \ | |
5481 | elf64_ia64_adjust_dynamic_symbol | |
5482 | #define elf_backend_size_dynamic_sections \ | |
5483 | elf64_ia64_size_dynamic_sections | |
5484 | #define elf_backend_omit_section_dynsym \ | |
5485 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
5486 | #define elf_backend_relocate_section \ | |
5487 | elf64_ia64_relocate_section | |
5488 | #define elf_backend_finish_dynamic_symbol \ | |
5489 | elf64_ia64_finish_dynamic_symbol | |
5490 | #define elf_backend_finish_dynamic_sections \ | |
5491 | elf64_ia64_finish_dynamic_sections | |
5492 | #define bfd_elf64_bfd_final_link \ | |
5493 | elf64_ia64_final_link | |
5494 | ||
5495 | #define bfd_elf64_bfd_merge_private_bfd_data \ | |
5496 | elf64_ia64_merge_private_bfd_data | |
5497 | #define bfd_elf64_bfd_set_private_flags \ | |
5498 | elf64_ia64_set_private_flags | |
5499 | #define bfd_elf64_bfd_print_private_bfd_data \ | |
5500 | elf64_ia64_print_private_bfd_data | |
5501 | ||
5502 | #define elf_backend_plt_readonly 1 | |
5503 | #define elf_backend_want_plt_sym 0 | |
5504 | #define elf_backend_plt_alignment 5 | |
5505 | #define elf_backend_got_header_size 0 | |
5506 | #define elf_backend_want_got_plt 1 | |
5507 | #define elf_backend_may_use_rel_p 1 | |
5508 | #define elf_backend_may_use_rela_p 1 | |
5509 | #define elf_backend_default_use_rela_p 1 | |
5510 | #define elf_backend_want_dynbss 0 | |
5511 | #define elf_backend_hide_symbol elf64_ia64_hash_hide_symbol | |
5512 | #define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol | |
5513 | #define elf_backend_reloc_type_class elf64_ia64_reloc_type_class | |
5514 | #define elf_backend_rela_normal 1 | |
5515 | #define elf_backend_special_sections elf64_ia64_special_sections | |
5516 | #define elf_backend_default_execstack 0 | |
5517 | ||
5518 | /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with | |
5519 | SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields. | |
5520 | We don't want to flood users with so many error messages. We turn | |
5521 | off the warning for now. It will be turned on later when the Intel | |
5522 | compiler is fixed. */ | |
5523 | #define elf_backend_link_order_error_handler NULL | |
5524 | ||
5525 | /* VMS-specific vectors. */ | |
5526 | ||
5527 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 5528 | #define TARGET_LITTLE_SYM ia64_elf64_vms_vec |
202e2356 NC |
5529 | #undef TARGET_LITTLE_NAME |
5530 | #define TARGET_LITTLE_NAME "elf64-ia64-vms" | |
5531 | #undef TARGET_BIG_SYM | |
5532 | #undef TARGET_BIG_NAME | |
5533 | ||
5534 | /* These are VMS specific functions. */ | |
5535 | ||
5536 | #undef elf_backend_object_p | |
5537 | #define elf_backend_object_p elf64_vms_object_p | |
5538 | ||
5539 | #undef elf_backend_section_from_shdr | |
5540 | #define elf_backend_section_from_shdr elf64_vms_section_from_shdr | |
5541 | ||
5542 | #undef elf_backend_post_process_headers | |
5543 | #define elf_backend_post_process_headers elf64_vms_post_process_headers | |
5544 | ||
5545 | #undef elf_backend_section_processing | |
5546 | #define elf_backend_section_processing elf64_vms_section_processing | |
5547 | ||
5548 | #undef elf_backend_final_write_processing | |
5549 | #define elf_backend_final_write_processing elf64_vms_final_write_processing | |
5550 | ||
5551 | #undef bfd_elf64_close_and_cleanup | |
5552 | #define bfd_elf64_close_and_cleanup elf64_vms_close_and_cleanup | |
5553 | ||
5554 | #undef elf_backend_section_from_bfd_section | |
5555 | ||
5556 | #undef elf_backend_symbol_processing | |
5557 | ||
5558 | #undef elf_backend_want_p_paddr_set_to_zero | |
5559 | ||
5560 | #undef ELF_OSABI | |
5561 | #define ELF_OSABI ELFOSABI_OPENVMS | |
5562 | ||
5563 | #undef ELF_MAXPAGESIZE | |
5564 | #define ELF_MAXPAGESIZE 0x10000 /* 64KB */ | |
5565 | ||
5566 | #undef elf64_bed | |
5567 | #define elf64_bed elf64_ia64_vms_bed | |
5568 | ||
5569 | #define elf_backend_size_info elf64_ia64_vms_size_info | |
5570 | ||
5571 | /* Use VMS-style archives (in particular, don't use the standard coff | |
5572 | archive format). */ | |
5573 | #define bfd_elf64_archive_functions | |
5574 | ||
5575 | #undef bfd_elf64_archive_p | |
5576 | #define bfd_elf64_archive_p _bfd_vms_lib_ia64_archive_p | |
5577 | #undef bfd_elf64_write_archive_contents | |
5578 | #define bfd_elf64_write_archive_contents _bfd_vms_lib_write_archive_contents | |
5579 | #undef bfd_elf64_mkarchive | |
5580 | #define bfd_elf64_mkarchive _bfd_vms_lib_ia64_mkarchive | |
5581 | ||
5582 | #define bfd_elf64_archive_slurp_armap \ | |
5583 | _bfd_vms_lib_slurp_armap | |
5584 | #define bfd_elf64_archive_slurp_extended_name_table \ | |
5585 | _bfd_vms_lib_slurp_extended_name_table | |
5586 | #define bfd_elf64_archive_construct_extended_name_table \ | |
5587 | _bfd_vms_lib_construct_extended_name_table | |
5588 | #define bfd_elf64_archive_truncate_arname \ | |
5589 | _bfd_vms_lib_truncate_arname | |
5590 | #define bfd_elf64_archive_write_armap \ | |
5591 | _bfd_vms_lib_write_armap | |
5592 | #define bfd_elf64_archive_read_ar_hdr \ | |
5593 | _bfd_vms_lib_read_ar_hdr | |
5594 | #define bfd_elf64_archive_write_ar_hdr \ | |
5595 | _bfd_vms_lib_write_ar_hdr | |
5596 | #define bfd_elf64_archive_openr_next_archived_file \ | |
5597 | _bfd_vms_lib_openr_next_archived_file | |
5598 | #define bfd_elf64_archive_get_elt_at_index \ | |
5599 | _bfd_vms_lib_get_elt_at_index | |
5600 | #define bfd_elf64_archive_generic_stat_arch_elt \ | |
5601 | _bfd_vms_lib_generic_stat_arch_elt | |
5602 | #define bfd_elf64_archive_update_armap_timestamp \ | |
5603 | _bfd_vms_lib_update_armap_timestamp | |
5604 | ||
5605 | /* VMS link methods. */ | |
5606 | #undef bfd_elf64_bfd_link_add_symbols | |
5607 | #define bfd_elf64_bfd_link_add_symbols elf64_vms_bfd_link_add_symbols | |
5608 | ||
5609 | #undef elf_backend_want_got_sym | |
5610 | #define elf_backend_want_got_sym 0 | |
5611 | ||
5612 | #undef bfd_elf64_mkobject | |
5613 | #define bfd_elf64_mkobject elf64_ia64_vms_mkobject | |
5614 | ||
5615 | /* Redefine to align segments on block size. */ | |
5616 | #undef ELF_MAXPAGESIZE | |
5617 | #define ELF_MAXPAGESIZE 0x200 /* 512B */ | |
5618 | ||
5619 | #undef elf_backend_want_got_plt | |
5620 | #define elf_backend_want_got_plt 0 | |
5621 | ||
5622 | #include "elf64-target.h" |