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1 /* 32-bit ELF support for S+core.
2 Copyright (C) 2006-2016 Free Software Foundation, Inc.
3 Contributed by
4 Brain.lin (brain.lin@sunplusct.com)
5 Mei Ligang (ligang@sunnorth.com.cn)
6 Pei-Lin Tsai (pltsai@sunplus.com)
7
8 This file is part of BFD, the Binary File Descriptor library.
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
23 MA 02110-1301, USA. */
24
25 #include "sysdep.h"
26 #include "bfd.h"
27 #include "libbfd.h"
28 #include "libiberty.h"
29 #include "elf-bfd.h"
30 #include "elf/score.h"
31 #include "elf/common.h"
32 #include "elf/internal.h"
33 #include "hashtab.h"
34 #include "elf32-score.h"
35
36
37 int score3 = 0;
38 int score7 = 1;
39
40 /* The SCORE ELF linker needs additional information for each symbol in
41 the global hash table. */
42 struct score_elf_link_hash_entry
43 {
44 struct elf_link_hash_entry root;
45
46 /* Number of R_SCORE_ABS32, R_SCORE_REL32 relocs against this symbol. */
47 unsigned int possibly_dynamic_relocs;
48
49 /* If the R_SCORE_ABS32, R_SCORE_REL32 reloc is against a readonly section. */
50 bfd_boolean readonly_reloc;
51
52 /* We must not create a stub for a symbol that has relocations related to
53 taking the function's address, i.e. any but R_SCORE_CALL15 ones. */
54 bfd_boolean no_fn_stub;
55
56 /* Are we forced local? This will only be set if we have converted
57 the initial global GOT entry to a local GOT entry. */
58 bfd_boolean forced_local;
59 };
60
61 /* Traverse a score ELF linker hash table. */
62 #define score_elf_link_hash_traverse(table, func, info) \
63 (elf_link_hash_traverse \
64 ((table), \
65 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
66 (info)))
67
68 /* This structure is used to hold .got entries while estimating got sizes. */
69 struct score_got_entry
70 {
71 /* The input bfd in which the symbol is defined. */
72 bfd *abfd;
73 /* The index of the symbol, as stored in the relocation r_info, if
74 we have a local symbol; -1 otherwise. */
75 long symndx;
76 union
77 {
78 /* If abfd == NULL, an address that must be stored in the got. */
79 bfd_vma address;
80 /* If abfd != NULL && symndx != -1, the addend of the relocation
81 that should be added to the symbol value. */
82 bfd_vma addend;
83 /* If abfd != NULL && symndx == -1, the hash table entry
84 corresponding to a global symbol in the got (or, local, if
85 h->forced_local). */
86 struct score_elf_link_hash_entry *h;
87 } d;
88
89 /* The offset from the beginning of the .got section to the entry
90 corresponding to this symbol+addend. If it's a global symbol
91 whose offset is yet to be decided, it's going to be -1. */
92 long gotidx;
93 };
94
95 /* This structure is passed to score_elf_sort_hash_table_f when sorting
96 the dynamic symbols. */
97
98 struct score_elf_hash_sort_data
99 {
100 /* The symbol in the global GOT with the lowest dynamic symbol table index. */
101 struct elf_link_hash_entry *low;
102 /* The least dynamic symbol table index corresponding to a symbol with a GOT entry. */
103 long min_got_dynindx;
104 /* The greatest dynamic symbol table index corresponding to a symbol
105 with a GOT entry that is not referenced (e.g., a dynamic symbol
106 with dynamic relocations pointing to it from non-primary GOTs). */
107 long max_unref_got_dynindx;
108 /* The greatest dynamic symbol table index not corresponding to a
109 symbol without a GOT entry. */
110 long max_non_got_dynindx;
111 };
112
113 struct score_got_info
114 {
115 /* The global symbol in the GOT with the lowest index in the dynamic
116 symbol table. */
117 struct elf_link_hash_entry *global_gotsym;
118 /* The number of global .got entries. */
119 unsigned int global_gotno;
120 /* The number of local .got entries. */
121 unsigned int local_gotno;
122 /* The number of local .got entries we have used. */
123 unsigned int assigned_gotno;
124 /* A hash table holding members of the got. */
125 struct htab *got_entries;
126 /* In multi-got links, a pointer to the next got (err, rather, most
127 of the time, it points to the previous got). */
128 struct score_got_info *next;
129 };
130
131 /* A structure used to count GOT entries, for GOT entry or ELF symbol table traversal. */
132 struct _score_elf_section_data
133 {
134 struct bfd_elf_section_data elf;
135 union
136 {
137 struct score_got_info *got_info;
138 bfd_byte *tdata;
139 }
140 u;
141 };
142
143 #define score_elf_section_data(sec) \
144 ((struct _score_elf_section_data *) elf_section_data (sec))
145
146 /* The size of a symbol-table entry. */
147 #define SCORE_ELF_SYM_SIZE(abfd) \
148 (get_elf_backend_data (abfd)->s->sizeof_sym)
149
150 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
151 from smaller values. Start with zero, widen, *then* decrement. */
152 #define MINUS_ONE (((bfd_vma)0) - 1)
153 #define MINUS_TWO (((bfd_vma)0) - 2)
154
155 #define PDR_SIZE 32
156
157
158 /* The number of local .got entries we reserve. */
159 #define SCORE_RESERVED_GOTNO (2)
160 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
161
162 /* The offset of $gp from the beginning of the .got section. */
163 #define ELF_SCORE_GP_OFFSET(abfd) (0x3ff0)
164 /* The maximum size of the GOT for it to be addressable using 15-bit offsets from $gp. */
165 #define SCORE_ELF_GOT_MAX_SIZE(abfd) (ELF_SCORE_GP_OFFSET(abfd) + 0x3fff)
166
167 #define SCORE_ELF_STUB_SECTION_NAME (".SCORE.stub")
168 #define SCORE_FUNCTION_STUB_SIZE (16)
169
170 #define STUB_LW 0xc3bcc010 /* lw r29, [r28, -0x3ff0] */
171 #define STUB_MOVE 0x8363bc56 /* mv r27, r3 */
172 #define STUB_LI16 0x87548000 /* ori r26, .dynsym_index */
173 #define STUB_BRL 0x801dbc09 /* brl r29 */
174
175 #define SCORE_ELF_GOT_SIZE(abfd) \
176 (get_elf_backend_data (abfd)->s->arch_size / 8)
177
178 #define SCORE_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
179 (_bfd_elf_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val))
180
181 /* The size of an external dynamic table entry. */
182 #define SCORE_ELF_DYN_SIZE(abfd) \
183 (get_elf_backend_data (abfd)->s->sizeof_dyn)
184
185 /* The size of an external REL relocation. */
186 #define SCORE_ELF_REL_SIZE(abfd) \
187 (get_elf_backend_data (abfd)->s->sizeof_rel)
188
189 /* The default alignment for sections, as a power of two. */
190 #define SCORE_ELF_LOG_FILE_ALIGN(abfd)\
191 (get_elf_backend_data (abfd)->s->log_file_align)
192
193 static bfd_byte *hi16_rel_addr;
194
195 /* This will be used when we sort the dynamic relocation records. */
196 static bfd *reldyn_sorting_bfd;
197
198 /* SCORE ELF uses two common sections. One is the usual one, and the
199 other is for small objects. All the small objects are kept
200 together, and then referenced via the gp pointer, which yields
201 faster assembler code. This is what we use for the small common
202 section. This approach is copied from ecoff.c. */
203 static asection score_elf_scom_section;
204 static asymbol score_elf_scom_symbol;
205 static asymbol *score_elf_scom_symbol_ptr;
206
207 static bfd_vma
208 score_bfd_get_16 (bfd *abfd, const void *data)
209 {
210 return bfd_get_16 (abfd, data);
211 }
212
213 static bfd_vma
214 score3_bfd_getl32 (const void *p)
215 {
216 const bfd_byte *addr = p;
217 unsigned long v;
218
219 v = (unsigned long) addr[2];
220 v |= (unsigned long) addr[3] << 8;
221 v |= (unsigned long) addr[0] << 16;
222 v |= (unsigned long) addr[1] << 24;
223 return v;
224 }
225
226 static bfd_vma
227 score3_bfd_getl48 (const void *p)
228 {
229 const bfd_byte *addr = p;
230 unsigned long long v;
231
232 v = (unsigned long long) addr[4];
233 v |= (unsigned long long) addr[5] << 8;
234 v |= (unsigned long long) addr[2] << 16;
235 v |= (unsigned long long) addr[3] << 24;
236 v |= (unsigned long long) addr[0] << 32;
237 v |= (unsigned long long) addr[1] << 40;
238 return v;
239 }
240
241 static bfd_vma
242 score_bfd_get_32 (bfd *abfd, const void *data)
243 {
244 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
245 return score3_bfd_getl32 (data);
246 else
247 return bfd_get_32 (abfd, data);
248 }
249
250 static bfd_vma
251 score_bfd_get_48 (bfd *abfd, const void *p)
252 {
253 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
254 return score3_bfd_getl48 (p);
255 else
256 return bfd_get_bits (p, 48, 1);
257 }
258
259 static void
260 score_bfd_put_16 (bfd *abfd, bfd_vma addr, void *data)
261 {
262 return bfd_put_16 (abfd, addr, data);
263 }
264
265 static void
266 score3_bfd_putl32 (bfd_vma data, void *p)
267 {
268 bfd_byte *addr = p;
269 addr[0] = (data >> 16) & 0xff;
270 addr[1] = (data >> 24) & 0xff;
271 addr[2] = data & 0xff;
272 addr[3] = (data >> 8) & 0xff;
273 }
274
275 static void
276 score3_bfd_putl48 (bfd_vma data, void *p)
277 {
278 bfd_byte *addr = p;
279 addr[0] = (data >> 32) & 0xff;
280 addr[1] = (data >> 40) & 0xff;
281 addr[2] = (data >> 16) & 0xff;
282 addr[3] = (data >> 24) & 0xff;
283 addr[4] = data & 0xff;
284 addr[5] = (data >> 8) & 0xff;
285 }
286
287 static void
288 score_bfd_put_32 (bfd *abfd, bfd_vma addr, void *data)
289 {
290 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
291 return score3_bfd_putl32 (addr, data);
292 else
293 return bfd_put_32 (abfd, addr, data);
294 }
295
296 static void
297 score_bfd_put_48 (bfd *abfd, bfd_vma val, void *p)
298 {
299 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
300 return score3_bfd_putl48 (val, p);
301 else
302 return bfd_put_bits (val, p, 48, 1);
303 }
304
305 static bfd_reloc_status_type
306 score_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
307 arelent *reloc_entry,
308 asymbol *symbol ATTRIBUTE_UNUSED,
309 void * data,
310 asection *input_section ATTRIBUTE_UNUSED,
311 bfd *output_bfd ATTRIBUTE_UNUSED,
312 char **error_message ATTRIBUTE_UNUSED)
313 {
314 hi16_rel_addr = (bfd_byte *) data + reloc_entry->address;
315 return bfd_reloc_ok;
316 }
317
318 static bfd_reloc_status_type
319 score_elf_lo16_reloc (bfd *abfd,
320 arelent *reloc_entry,
321 asymbol *symbol ATTRIBUTE_UNUSED,
322 void * data,
323 asection *input_section,
324 bfd *output_bfd ATTRIBUTE_UNUSED,
325 char **error_message ATTRIBUTE_UNUSED)
326 {
327 bfd_vma addend = 0, offset = 0;
328 unsigned long val;
329 unsigned long hi16_offset, hi16_value, uvalue;
330
331 hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr);
332 hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1;
333 addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
334 offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1;
335 val = reloc_entry->addend;
336 if (reloc_entry->address > input_section->size)
337 return bfd_reloc_outofrange;
338 uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val;
339 hi16_offset = (uvalue >> 16) << 1;
340 hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
341 score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr);
342 offset = (uvalue & 0xffff) << 1;
343 addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
344 score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address);
345 return bfd_reloc_ok;
346 }
347
348 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
349 dangerous relocation. */
350
351 static bfd_boolean
352 score_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
353 {
354 unsigned int count;
355 asymbol **sym;
356 unsigned int i;
357
358 /* If we've already figured out what GP will be, just return it. */
359 *pgp = _bfd_get_gp_value (output_bfd);
360 if (*pgp)
361 return TRUE;
362
363 count = bfd_get_symcount (output_bfd);
364 sym = bfd_get_outsymbols (output_bfd);
365
366 /* The linker script will have created a symbol named `_gp' with the
367 appropriate value. */
368 if (sym == NULL)
369 i = count;
370 else
371 {
372 for (i = 0; i < count; i++, sym++)
373 {
374 const char *name;
375
376 name = bfd_asymbol_name (*sym);
377 if (*name == '_' && strcmp (name, "_gp") == 0)
378 {
379 *pgp = bfd_asymbol_value (*sym);
380 _bfd_set_gp_value (output_bfd, *pgp);
381 break;
382 }
383 }
384 }
385
386 if (i >= count)
387 {
388 /* Only get the error once. */
389 *pgp = 4;
390 _bfd_set_gp_value (output_bfd, *pgp);
391 return FALSE;
392 }
393
394 return TRUE;
395 }
396
397 /* We have to figure out the gp value, so that we can adjust the
398 symbol value correctly. We look up the symbol _gp in the output
399 BFD. If we can't find it, we're stuck. We cache it in the ELF
400 target data. We don't need to adjust the symbol value for an
401 external symbol if we are producing relocatable output. */
402 static bfd_reloc_status_type
403 score_elf_final_gp (bfd *output_bfd,
404 asymbol *symbol,
405 bfd_boolean relocatable,
406 char **error_message,
407 bfd_vma *pgp)
408 {
409 if (bfd_is_und_section (symbol->section)
410 && ! relocatable)
411 {
412 *pgp = 0;
413 return bfd_reloc_undefined;
414 }
415
416 *pgp = _bfd_get_gp_value (output_bfd);
417 if (*pgp == 0
418 && (! relocatable
419 || (symbol->flags & BSF_SECTION_SYM) != 0))
420 {
421 if (relocatable)
422 {
423 /* Make up a value. */
424 *pgp = symbol->section->output_section->vma + 0x4000;
425 _bfd_set_gp_value (output_bfd, *pgp);
426 }
427 else if (!score_elf_assign_gp (output_bfd, pgp))
428 {
429 *error_message =
430 (char *) _("GP relative relocation when _gp not defined");
431 return bfd_reloc_dangerous;
432 }
433 }
434
435 return bfd_reloc_ok;
436 }
437
438 static bfd_reloc_status_type
439 score_elf_gprel15_with_gp (bfd *abfd,
440 asymbol *symbol,
441 arelent *reloc_entry,
442 asection *input_section,
443 bfd_boolean relocateable,
444 void * data,
445 bfd_vma gp ATTRIBUTE_UNUSED)
446 {
447 bfd_vma relocation;
448 unsigned long insn;
449
450 if (bfd_is_com_section (symbol->section))
451 relocation = 0;
452 else
453 relocation = symbol->value;
454
455 relocation += symbol->section->output_section->vma;
456 relocation += symbol->section->output_offset;
457 if (reloc_entry->address > input_section->size)
458 return bfd_reloc_outofrange;
459
460 insn = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
461 if (((reloc_entry->addend & 0xffffc000) != 0)
462 && ((reloc_entry->addend & 0xffffc000) != 0xffffc000))
463 return bfd_reloc_overflow;
464
465 insn = (insn & ~0x7fff) | (reloc_entry->addend & 0x7fff);
466 score_bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
467 if (relocateable)
468 reloc_entry->address += input_section->output_offset;
469
470 return bfd_reloc_ok;
471 }
472
473 static bfd_reloc_status_type
474 gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
475 asection *input_section, bfd_boolean relocatable,
476 void *data, bfd_vma gp)
477 {
478 bfd_vma relocation;
479 bfd_vma val;
480
481 if (bfd_is_com_section (symbol->section))
482 relocation = 0;
483 else
484 relocation = symbol->value;
485
486 relocation += symbol->section->output_section->vma;
487 relocation += symbol->section->output_offset;
488
489 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
490 return bfd_reloc_outofrange;
491
492 /* Set val to the offset into the section or symbol. */
493 val = reloc_entry->addend;
494
495 if (reloc_entry->howto->partial_inplace)
496 val += score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
497
498 /* Adjust val for the final section location and GP value. If we
499 are producing relocatable output, we don't want to do this for
500 an external symbol. */
501 if (! relocatable
502 || (symbol->flags & BSF_SECTION_SYM) != 0)
503 val += relocation - gp;
504
505 if (reloc_entry->howto->partial_inplace)
506 score_bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
507 else
508 reloc_entry->addend = val;
509
510 if (relocatable)
511 reloc_entry->address += input_section->output_offset;
512
513 return bfd_reloc_ok;
514 }
515
516 static bfd_reloc_status_type
517 score_elf_gprel15_reloc (bfd *abfd,
518 arelent *reloc_entry,
519 asymbol *symbol,
520 void * data,
521 asection *input_section,
522 bfd *output_bfd,
523 char **error_message)
524 {
525 bfd_boolean relocateable;
526 bfd_reloc_status_type ret;
527 bfd_vma gp;
528
529 if (output_bfd != NULL
530 && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0)
531 {
532 reloc_entry->address += input_section->output_offset;
533 return bfd_reloc_ok;
534 }
535 if (output_bfd != NULL)
536 relocateable = TRUE;
537 else
538 {
539 relocateable = FALSE;
540 output_bfd = symbol->section->output_section->owner;
541 }
542
543 ret = score_elf_final_gp (output_bfd, symbol, relocateable, error_message, &gp);
544 if (ret != bfd_reloc_ok)
545 return ret;
546
547 return score_elf_gprel15_with_gp (abfd, symbol, reloc_entry,
548 input_section, relocateable, data, gp);
549 }
550
551 /* Do a R_SCORE_GPREL32 relocation. This is a 32 bit value which must
552 become the offset from the gp register. */
553
554 static bfd_reloc_status_type
555 score_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
556 void *data, asection *input_section, bfd *output_bfd,
557 char **error_message)
558 {
559 bfd_boolean relocatable;
560 bfd_reloc_status_type ret;
561 bfd_vma gp;
562
563 /* R_SCORE_GPREL32 relocations are defined for local symbols only. */
564 if (output_bfd != NULL
565 && (symbol->flags & BSF_SECTION_SYM) == 0
566 && (symbol->flags & BSF_LOCAL) != 0)
567 {
568 *error_message = (char *)
569 _("32bits gp relative relocation occurs for an external symbol");
570 return bfd_reloc_outofrange;
571 }
572
573 if (output_bfd != NULL)
574 relocatable = TRUE;
575 else
576 {
577 relocatable = FALSE;
578 output_bfd = symbol->section->output_section->owner;
579 }
580
581 ret = score_elf_final_gp (output_bfd, symbol, relocatable, error_message, &gp);
582 if (ret != bfd_reloc_ok)
583 return ret;
584
585 gp = 0;
586 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
587 relocatable, data, gp);
588 }
589
590 /* A howto special_function for R_SCORE_GOT15 relocations. This is just
591 like any other 16-bit relocation when applied to global symbols, but is
592 treated in the same as R_SCORE_HI16 when applied to local symbols. */
593 static bfd_reloc_status_type
594 score_elf_got15_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
595 void *data, asection *input_section,
596 bfd *output_bfd, char **error_message)
597 {
598 if ((symbol->flags & (BSF_GLOBAL | BSF_WEAK)) != 0
599 || bfd_is_und_section (bfd_get_section (symbol))
600 || bfd_is_com_section (bfd_get_section (symbol)))
601 /* The relocation is against a global symbol. */
602 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
603 input_section, output_bfd,
604 error_message);
605
606 return score_elf_hi16_reloc (abfd, reloc_entry, symbol, data,
607 input_section, output_bfd, error_message);
608 }
609
610 static bfd_reloc_status_type
611 score_elf_got_lo16_reloc (bfd *abfd,
612 arelent *reloc_entry,
613 asymbol *symbol ATTRIBUTE_UNUSED,
614 void * data,
615 asection *input_section,
616 bfd *output_bfd ATTRIBUTE_UNUSED,
617 char **error_message ATTRIBUTE_UNUSED)
618 {
619 bfd_vma addend = 0, offset = 0;
620 signed long val;
621 signed long hi16_offset, hi16_value, uvalue;
622
623 hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr);
624 hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1;
625 addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
626 offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1;
627 val = reloc_entry->addend;
628 if (reloc_entry->address > input_section->size)
629 return bfd_reloc_outofrange;
630 uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val;
631 if ((uvalue > -0x8000) && (uvalue < 0x7fff))
632 hi16_offset = 0;
633 else
634 hi16_offset = (uvalue >> 16) & 0x7fff;
635 hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
636 score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr);
637 offset = (uvalue & 0xffff) << 1;
638 addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
639 score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address);
640 return bfd_reloc_ok;
641 }
642
643 static reloc_howto_type elf32_score_howto_table[] =
644 {
645 /* No relocation. */
646 HOWTO (R_SCORE_NONE, /* type */
647 0, /* rightshift */
648 3, /* size (0 = byte, 1 = short, 2 = long) */
649 0, /* bitsize */
650 FALSE, /* pc_relative */
651 0, /* bitpos */
652 complain_overflow_dont,/* complain_on_overflow */
653 bfd_elf_generic_reloc, /* special_function */
654 "R_SCORE_NONE", /* name */
655 FALSE, /* partial_inplace */
656 0, /* src_mask */
657 0, /* dst_mask */
658 FALSE), /* pcrel_offset */
659
660 /* R_SCORE_HI16 */
661 HOWTO (R_SCORE_HI16, /* type */
662 0, /* rightshift */
663 2, /* size (0 = byte, 1 = short, 2 = long) */
664 16, /* bitsize */
665 FALSE, /* pc_relative */
666 1, /* bitpos */
667 complain_overflow_dont,/* complain_on_overflow */
668 score_elf_hi16_reloc, /* special_function */
669 "R_SCORE_HI16", /* name */
670 TRUE, /* partial_inplace */
671 0x37fff, /* src_mask */
672 0x37fff, /* dst_mask */
673 FALSE), /* pcrel_offset */
674
675 /* R_SCORE_LO16 */
676 HOWTO (R_SCORE_LO16, /* type */
677 0, /* rightshift */
678 2, /* size (0 = byte, 1 = short, 2 = long) */
679 16, /* bitsize */
680 FALSE, /* pc_relative */
681 1, /* bitpos */
682 complain_overflow_dont,/* complain_on_overflow */
683 score_elf_lo16_reloc, /* special_function */
684 "R_SCORE_LO16", /* name */
685 TRUE, /* partial_inplace */
686 0x37fff, /* src_mask */
687 0x37fff, /* dst_mask */
688 FALSE), /* pcrel_offset */
689
690 /* R_SCORE_BCMP */
691 HOWTO (R_SCORE_BCMP, /* type */
692 1, /* rightshift */
693 2, /* size (0 = byte, 1 = short, 2 = long) */
694 16, /* bitsize */
695 TRUE, /* pc_relative */
696 1, /* bitpos */
697 complain_overflow_dont,/* complain_on_overflow */
698 bfd_elf_generic_reloc, /* special_function */
699 "R_SCORE_BCMP", /* name */
700 FALSE, /* partial_inplace */
701 0x03e00381, /* src_mask */
702 0x03e00381, /* dst_mask */
703 FALSE), /* pcrel_offset */
704
705 /*R_SCORE_24 */
706 HOWTO (R_SCORE_24, /* type */
707 1, /* rightshift */
708 2, /* size (0 = byte, 1 = short, 2 = long) */
709 24, /* bitsize */
710 FALSE, /* pc_relative */
711 1, /* bitpos */
712 complain_overflow_dont,/* complain_on_overflow */
713 bfd_elf_generic_reloc, /* special_function */
714 "R_SCORE_24", /* name */
715 FALSE, /* partial_inplace */
716 0x3ff7fff, /* src_mask */
717 0x3ff7fff, /* dst_mask */
718 FALSE), /* pcrel_offset */
719
720 /*R_SCORE_PC19 */
721 HOWTO (R_SCORE_PC19, /* type */
722 1, /* rightshift */
723 2, /* size (0 = byte, 1 = short, 2 = long) */
724 19, /* bitsize */
725 TRUE, /* pc_relative */
726 1, /* bitpos */
727 complain_overflow_dont,/* complain_on_overflow */
728 bfd_elf_generic_reloc, /* special_function */
729 "R_SCORE_PC19", /* name */
730 FALSE, /* partial_inplace */
731 0x3ff03fe, /* src_mask */
732 0x3ff03fe, /* dst_mask */
733 FALSE), /* pcrel_offset */
734
735 /*R_SCORE16_11 */
736 HOWTO (R_SCORE16_11, /* type */
737 1, /* rightshift */
738 1, /* size (0 = byte, 1 = short, 2 = long) */
739 11, /* bitsize */
740 FALSE, /* pc_relative */
741 1, /* bitpos */
742 complain_overflow_dont,/* complain_on_overflow */
743 bfd_elf_generic_reloc, /* special_function */
744 "R_SCORE16_11", /* name */
745 FALSE, /* partial_inplace */
746 0x000000ffe, /* src_mask */
747 0x000000ffe, /* dst_mask */
748 FALSE), /* pcrel_offset */
749
750 /* R_SCORE16_PC8 */
751 HOWTO (R_SCORE16_PC8, /* type */
752 1, /* rightshift */
753 1, /* size (0 = byte, 1 = short, 2 = long) */
754 9, /* bitsize */
755 TRUE, /* pc_relative */
756 0, /* bitpos */
757 complain_overflow_dont,/* complain_on_overflow */
758 bfd_elf_generic_reloc, /* special_function */
759 "R_SCORE16_PC8", /* name */
760 FALSE, /* partial_inplace */
761 0x000001ff, /* src_mask */
762 0x000001ff, /* dst_mask */
763 FALSE), /* pcrel_offset */
764
765 /* 32 bit absolute */
766 HOWTO (R_SCORE_ABS32, /* type 8 */
767 0, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 32, /* bitsize */
770 FALSE, /* pc_relative */
771 0, /* bitpos */
772 complain_overflow_bitfield, /* complain_on_overflow */
773 bfd_elf_generic_reloc, /* special_function */
774 "R_SCORE_ABS32", /* name */
775 FALSE, /* partial_inplace */
776 0xffffffff, /* src_mask */
777 0xffffffff, /* dst_mask */
778 FALSE), /* pcrel_offset */
779
780 /* 16 bit absolute */
781 HOWTO (R_SCORE_ABS16, /* type 11 */
782 0, /* rightshift */
783 1, /* size (0 = byte, 1 = short, 2 = long) */
784 16, /* bitsize */
785 FALSE, /* pc_relative */
786 0, /* bitpos */
787 complain_overflow_bitfield, /* complain_on_overflow */
788 bfd_elf_generic_reloc, /* special_function */
789 "R_SCORE_ABS16", /* name */
790 FALSE, /* partial_inplace */
791 0x0000ffff, /* src_mask */
792 0x0000ffff, /* dst_mask */
793 FALSE), /* pcrel_offset */
794
795 /* R_SCORE_DUMMY2 */
796 HOWTO (R_SCORE_DUMMY2, /* type */
797 0, /* rightshift */
798 2, /* size (0 = byte, 1 = short, 2 = long) */
799 16, /* bitsize */
800 FALSE, /* pc_relative */
801 0, /* bitpos */
802 complain_overflow_dont,/* complain_on_overflow */
803 bfd_elf_generic_reloc, /* special_function */
804 "R_SCORE_DUMMY2", /* name */
805 TRUE, /* partial_inplace */
806 0x00007fff, /* src_mask */
807 0x00007fff, /* dst_mask */
808 FALSE), /* pcrel_offset */
809
810 /* R_SCORE_GP15 */
811 HOWTO (R_SCORE_GP15, /* type */
812 0, /* rightshift */
813 2, /* size (0 = byte, 1 = short, 2 = long) */
814 16, /* bitsize */
815 FALSE, /* pc_relative */
816 0, /* bitpos */
817 complain_overflow_dont,/* complain_on_overflow */
818 score_elf_gprel15_reloc,/* special_function */
819 "R_SCORE_GP15", /* name */
820 TRUE, /* partial_inplace */
821 0x00007fff, /* src_mask */
822 0x00007fff, /* dst_mask */
823 FALSE), /* pcrel_offset */
824
825 /* GNU extension to record C++ vtable hierarchy. */
826 HOWTO (R_SCORE_GNU_VTINHERIT, /* type */
827 0, /* rightshift */
828 2, /* size (0 = byte, 1 = short, 2 = long) */
829 0, /* bitsize */
830 FALSE, /* pc_relative */
831 0, /* bitpos */
832 complain_overflow_dont,/* complain_on_overflow */
833 NULL, /* special_function */
834 "R_SCORE_GNU_VTINHERIT", /* name */
835 FALSE, /* partial_inplace */
836 0, /* src_mask */
837 0, /* dst_mask */
838 FALSE), /* pcrel_offset */
839
840 /* GNU extension to record C++ vtable member usage */
841 HOWTO (R_SCORE_GNU_VTENTRY, /* type */
842 0, /* rightshift */
843 2, /* size (0 = byte, 1 = short, 2 = long) */
844 0, /* bitsize */
845 FALSE, /* pc_relative */
846 0, /* bitpos */
847 complain_overflow_dont,/* complain_on_overflow */
848 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
849 "R_SCORE_GNU_VTENTRY", /* name */
850 FALSE, /* partial_inplace */
851 0, /* src_mask */
852 0, /* dst_mask */
853 FALSE), /* pcrel_offset */
854
855 /* Reference to global offset table. */
856 HOWTO (R_SCORE_GOT15, /* type */
857 0, /* rightshift */
858 2, /* size (0 = byte, 1 = short, 2 = long) */
859 16, /* bitsize */
860 FALSE, /* pc_relative */
861 0, /* bitpos */
862 complain_overflow_signed, /* complain_on_overflow */
863 score_elf_got15_reloc, /* special_function */
864 "R_SCORE_GOT15", /* name */
865 TRUE, /* partial_inplace */
866 0x00007fff, /* src_mask */
867 0x00007fff, /* dst_mask */
868 FALSE), /* pcrel_offset */
869
870 /* Low 16 bits of displacement in global offset table. */
871 HOWTO (R_SCORE_GOT_LO16, /* type */
872 0, /* rightshift */
873 2, /* size (0 = byte, 1 = short, 2 = long) */
874 16, /* bitsize */
875 FALSE, /* pc_relative */
876 1, /* bitpos */
877 complain_overflow_dont,/* complain_on_overflow */
878 score_elf_got_lo16_reloc, /* special_function */
879 "R_SCORE_GOT_LO16", /* name */
880 TRUE, /* partial_inplace */
881 0x37ffe, /* src_mask */
882 0x37ffe, /* dst_mask */
883 FALSE), /* pcrel_offset */
884
885 /* 15 bit call through global offset table. */
886 HOWTO (R_SCORE_CALL15, /* type */
887 0, /* rightshift */
888 2, /* size (0 = byte, 1 = short, 2 = long) */
889 16, /* bitsize */
890 FALSE, /* pc_relative */
891 0, /* bitpos */
892 complain_overflow_signed, /* complain_on_overflow */
893 bfd_elf_generic_reloc, /* special_function */
894 "R_SCORE_CALL15", /* name */
895 TRUE, /* partial_inplace */
896 0x0000ffff, /* src_mask */
897 0x0000ffff, /* dst_mask */
898 FALSE), /* pcrel_offset */
899
900 /* 32 bit GP relative reference. */
901 HOWTO (R_SCORE_GPREL32, /* type */
902 0, /* rightshift */
903 2, /* size (0 = byte, 1 = short, 2 = long) */
904 32, /* bitsize */
905 FALSE, /* pc_relative */
906 0, /* bitpos */
907 complain_overflow_dont,/* complain_on_overflow */
908 score_elf_gprel32_reloc, /* special_function */
909 "R_SCORE_GPREL32", /* name */
910 TRUE, /* partial_inplace */
911 0xffffffff, /* src_mask */
912 0xffffffff, /* dst_mask */
913 FALSE), /* pcrel_offset */
914
915 /* 32 bit symbol relative relocation. */
916 HOWTO (R_SCORE_REL32, /* type */
917 0, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 32, /* bitsize */
920 FALSE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_dont,/* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_SCORE_REL32", /* name */
925 TRUE, /* partial_inplace */
926 0xffffffff, /* src_mask */
927 0xffffffff, /* dst_mask */
928 FALSE), /* pcrel_offset */
929
930 /* R_SCORE_DUMMY_HI16 */
931 HOWTO (R_SCORE_DUMMY_HI16, /* type */
932 0, /* rightshift */
933 2, /* size (0 = byte, 1 = short, 2 = long) */
934 16, /* bitsize */
935 FALSE, /* pc_relative */
936 1, /* bitpos */
937 complain_overflow_dont,/* complain_on_overflow */
938 score_elf_hi16_reloc, /* special_function */
939 "R_SCORE_DUMMY_HI16", /* name */
940 TRUE, /* partial_inplace */
941 0x37fff, /* src_mask */
942 0x37fff, /* dst_mask */
943 FALSE), /* pcrel_offset */
944
945 /* R_SCORE_IMM30 */
946 HOWTO (R_SCORE_IMM30, /* type */
947 2, /* rightshift */
948 2, /* size (0 = byte, 1 = short, 2 = long) */
949 30, /* bitsize */
950 FALSE, /* pc_relative */
951 7, /* bitpos */
952 complain_overflow_dont,/* complain_on_overflow */
953 bfd_elf_generic_reloc, /* special_function */
954 "R_SCORE_IMM30", /* name */
955 FALSE, /* partial_inplace */
956 0x7f7fff7f80LL, /* src_mask */
957 0x7f7fff7f80LL, /* dst_mask */
958 FALSE), /* pcrel_offset */
959
960 /* R_SCORE_IMM32 */
961 HOWTO (R_SCORE_IMM32, /* type */
962 0, /* rightshift */
963 2, /* size (0 = byte, 1 = short, 2 = long) */
964 32, /* bitsize */
965 FALSE, /* pc_relative */
966 5, /* bitpos */
967 complain_overflow_dont,/* complain_on_overflow */
968 bfd_elf_generic_reloc, /* special_function */
969 "R_SCORE_IMM32", /* name */
970 FALSE, /* partial_inplace */
971 0x7f7fff7fe0LL, /* src_mask */
972 0x7f7fff7fe0LL, /* dst_mask */
973 FALSE), /* pcrel_offset */
974 };
975
976 struct score_reloc_map
977 {
978 bfd_reloc_code_real_type bfd_reloc_val;
979 unsigned char elf_reloc_val;
980 };
981
982 static const struct score_reloc_map elf32_score_reloc_map[] =
983 {
984 {BFD_RELOC_NONE, R_SCORE_NONE},
985 {BFD_RELOC_HI16_S, R_SCORE_HI16},
986 {BFD_RELOC_LO16, R_SCORE_LO16},
987 {BFD_RELOC_SCORE_BCMP, R_SCORE_BCMP},
988 {BFD_RELOC_SCORE_JMP, R_SCORE_24},
989 {BFD_RELOC_SCORE_BRANCH, R_SCORE_PC19},
990 {BFD_RELOC_SCORE16_JMP, R_SCORE16_11},
991 {BFD_RELOC_SCORE16_BRANCH, R_SCORE16_PC8},
992 {BFD_RELOC_32, R_SCORE_ABS32},
993 {BFD_RELOC_16, R_SCORE_ABS16},
994 {BFD_RELOC_SCORE_DUMMY2, R_SCORE_DUMMY2},
995 {BFD_RELOC_SCORE_GPREL15, R_SCORE_GP15},
996 {BFD_RELOC_VTABLE_INHERIT, R_SCORE_GNU_VTINHERIT},
997 {BFD_RELOC_VTABLE_ENTRY, R_SCORE_GNU_VTENTRY},
998 {BFD_RELOC_SCORE_GOT15, R_SCORE_GOT15},
999 {BFD_RELOC_SCORE_GOT_LO16, R_SCORE_GOT_LO16},
1000 {BFD_RELOC_SCORE_CALL15, R_SCORE_CALL15},
1001 {BFD_RELOC_GPREL32, R_SCORE_GPREL32},
1002 {BFD_RELOC_32_PCREL, R_SCORE_REL32},
1003 {BFD_RELOC_SCORE_DUMMY_HI16, R_SCORE_DUMMY_HI16},
1004 {BFD_RELOC_SCORE_IMM30, R_SCORE_IMM30},
1005 {BFD_RELOC_SCORE_IMM32, R_SCORE_IMM32},
1006 };
1007
1008 /* got_entries only match if they're identical, except for gotidx, so
1009 use all fields to compute the hash, and compare the appropriate
1010 union members. */
1011 static hashval_t
1012 score_elf_got_entry_hash (const void *entry_)
1013 {
1014 const struct score_got_entry *entry = (struct score_got_entry *)entry_;
1015
1016 return entry->symndx
1017 + (!entry->abfd ? entry->d.address : entry->abfd->id);
1018 }
1019
1020 static int
1021 score_elf_got_entry_eq (const void *entry1, const void *entry2)
1022 {
1023 const struct score_got_entry *e1 = (struct score_got_entry *)entry1;
1024 const struct score_got_entry *e2 = (struct score_got_entry *)entry2;
1025
1026 return e1->abfd == e2->abfd && e1->symndx == e2->symndx
1027 && (! e1->abfd ? e1->d.address == e2->d.address
1028 : e1->symndx >= 0 ? e1->d.addend == e2->d.addend
1029 : e1->d.h == e2->d.h);
1030 }
1031
1032 /* If H needs a GOT entry, assign it the highest available dynamic
1033 index. Otherwise, assign it the lowest available dynamic
1034 index. */
1035 static bfd_boolean
1036 score_elf_sort_hash_table_f (struct score_elf_link_hash_entry *h, void *data)
1037 {
1038 struct score_elf_hash_sort_data *hsd = data;
1039
1040 /* Symbols without dynamic symbol table entries aren't interesting at all. */
1041 if (h->root.dynindx == -1)
1042 return TRUE;
1043
1044 /* Global symbols that need GOT entries that are not explicitly
1045 referenced are marked with got offset 2. Those that are
1046 referenced get a 1, and those that don't need GOT entries get
1047 -1. */
1048 if (h->root.got.offset == 2)
1049 {
1050 if (hsd->max_unref_got_dynindx == hsd->min_got_dynindx)
1051 hsd->low = (struct elf_link_hash_entry *) h;
1052 h->root.dynindx = hsd->max_unref_got_dynindx++;
1053 }
1054 else if (h->root.got.offset != 1)
1055 h->root.dynindx = hsd->max_non_got_dynindx++;
1056 else
1057 {
1058 h->root.dynindx = --hsd->min_got_dynindx;
1059 hsd->low = (struct elf_link_hash_entry *) h;
1060 }
1061
1062 return TRUE;
1063 }
1064
1065 static asection *
1066 score_elf_got_section (bfd *abfd, bfd_boolean maybe_excluded)
1067 {
1068 asection *sgot = bfd_get_linker_section (abfd, ".got");
1069
1070 if (sgot == NULL || (! maybe_excluded && (sgot->flags & SEC_EXCLUDE) != 0))
1071 return NULL;
1072 return sgot;
1073 }
1074
1075 /* Returns the GOT information associated with the link indicated by
1076 INFO. If SGOTP is non-NULL, it is filled in with the GOT section. */
1077 static struct score_got_info *
1078 score_elf_got_info (bfd *abfd, asection **sgotp)
1079 {
1080 asection *sgot;
1081 struct score_got_info *g;
1082
1083 sgot = score_elf_got_section (abfd, TRUE);
1084 BFD_ASSERT (sgot != NULL);
1085 BFD_ASSERT (elf_section_data (sgot) != NULL);
1086 g = score_elf_section_data (sgot)->u.got_info;
1087 BFD_ASSERT (g != NULL);
1088
1089 if (sgotp)
1090 *sgotp = sgot;
1091 return g;
1092 }
1093
1094 /* Sort the dynamic symbol table so that symbols that need GOT entries
1095 appear towards the end. This reduces the amount of GOT space
1096 required. MAX_LOCAL is used to set the number of local symbols
1097 known to be in the dynamic symbol table. During
1098 s3_bfd_score_elf_size_dynamic_sections, this value is 1. Afterward, the
1099 section symbols are added and the count is higher. */
1100 static bfd_boolean
1101 score_elf_sort_hash_table (struct bfd_link_info *info,
1102 unsigned long max_local)
1103 {
1104 struct score_elf_hash_sort_data hsd;
1105 struct score_got_info *g;
1106 bfd *dynobj;
1107
1108 dynobj = elf_hash_table (info)->dynobj;
1109
1110 g = score_elf_got_info (dynobj, NULL);
1111
1112 hsd.low = NULL;
1113 hsd.max_unref_got_dynindx =
1114 hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount
1115 /* In the multi-got case, assigned_gotno of the master got_info
1116 indicate the number of entries that aren't referenced in the
1117 primary GOT, but that must have entries because there are
1118 dynamic relocations that reference it. Since they aren't
1119 referenced, we move them to the end of the GOT, so that they
1120 don't prevent other entries that are referenced from getting
1121 too large offsets. */
1122 - (g->next ? g->assigned_gotno : 0);
1123 hsd.max_non_got_dynindx = max_local;
1124 score_elf_link_hash_traverse (elf_hash_table (info),
1125 score_elf_sort_hash_table_f,
1126 &hsd);
1127
1128 /* There should have been enough room in the symbol table to
1129 accommodate both the GOT and non-GOT symbols. */
1130 BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
1131 BFD_ASSERT ((unsigned long)hsd.max_unref_got_dynindx
1132 <= elf_hash_table (info)->dynsymcount);
1133
1134 /* Now we know which dynamic symbol has the lowest dynamic symbol
1135 table index in the GOT. */
1136 g->global_gotsym = hsd.low;
1137
1138 return TRUE;
1139 }
1140
1141 /* Create an entry in an score ELF linker hash table. */
1142
1143 static struct bfd_hash_entry *
1144 score_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1145 struct bfd_hash_table *table,
1146 const char *string)
1147 {
1148 struct score_elf_link_hash_entry *ret = (struct score_elf_link_hash_entry *) entry;
1149
1150 /* Allocate the structure if it has not already been allocated by a subclass. */
1151 if (ret == NULL)
1152 ret = bfd_hash_allocate (table, sizeof (struct score_elf_link_hash_entry));
1153 if (ret == NULL)
1154 return (struct bfd_hash_entry *) ret;
1155
1156 /* Call the allocation method of the superclass. */
1157 ret = ((struct score_elf_link_hash_entry *)
1158 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
1159
1160 if (ret != NULL)
1161 {
1162 ret->possibly_dynamic_relocs = 0;
1163 ret->readonly_reloc = FALSE;
1164 ret->no_fn_stub = FALSE;
1165 ret->forced_local = FALSE;
1166 }
1167
1168 return (struct bfd_hash_entry *) ret;
1169 }
1170
1171 /* Returns the first relocation of type r_type found, beginning with
1172 RELOCATION. RELEND is one-past-the-end of the relocation table. */
1173 static const Elf_Internal_Rela *
1174 score_elf_next_relocation (bfd *abfd ATTRIBUTE_UNUSED, unsigned int r_type,
1175 const Elf_Internal_Rela *relocation,
1176 const Elf_Internal_Rela *relend)
1177 {
1178 while (relocation < relend)
1179 {
1180 if (ELF32_R_TYPE (relocation->r_info) == r_type)
1181 return relocation;
1182
1183 ++relocation;
1184 }
1185
1186 /* We didn't find it. */
1187 bfd_set_error (bfd_error_bad_value);
1188 return NULL;
1189 }
1190
1191 /* This function is called via qsort() to sort the dynamic relocation
1192 entries by increasing r_symndx value. */
1193 static int
1194 score_elf_sort_dynamic_relocs (const void *arg1, const void *arg2)
1195 {
1196 Elf_Internal_Rela int_reloc1;
1197 Elf_Internal_Rela int_reloc2;
1198
1199 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg1, &int_reloc1);
1200 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg2, &int_reloc2);
1201
1202 return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info));
1203 }
1204
1205 /* Return whether a relocation is against a local symbol. */
1206 static bfd_boolean
1207 score_elf_local_relocation_p (bfd *input_bfd,
1208 const Elf_Internal_Rela *relocation,
1209 asection **local_sections,
1210 bfd_boolean check_forced)
1211 {
1212 unsigned long r_symndx;
1213 Elf_Internal_Shdr *symtab_hdr;
1214 struct score_elf_link_hash_entry *h;
1215 size_t extsymoff;
1216
1217 r_symndx = ELF32_R_SYM (relocation->r_info);
1218 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1219 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
1220
1221 if (r_symndx < extsymoff)
1222 return TRUE;
1223 if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL)
1224 return TRUE;
1225
1226 if (check_forced)
1227 {
1228 /* Look up the hash table to check whether the symbol was forced local. */
1229 h = (struct score_elf_link_hash_entry *)
1230 elf_sym_hashes (input_bfd) [r_symndx - extsymoff];
1231 /* Find the real hash-table entry for this symbol. */
1232 while (h->root.root.type == bfd_link_hash_indirect
1233 || h->root.root.type == bfd_link_hash_warning)
1234 h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link;
1235 if (h->root.forced_local)
1236 return TRUE;
1237 }
1238
1239 return FALSE;
1240 }
1241
1242 /* Returns the dynamic relocation section for DYNOBJ. */
1243 static asection *
1244 score_elf_rel_dyn_section (bfd *dynobj, bfd_boolean create_p)
1245 {
1246 static const char dname[] = ".rel.dyn";
1247 asection *sreloc;
1248
1249 sreloc = bfd_get_linker_section (dynobj, dname);
1250 if (sreloc == NULL && create_p)
1251 {
1252 sreloc = bfd_make_section_anyway_with_flags (dynobj, dname,
1253 (SEC_ALLOC
1254 | SEC_LOAD
1255 | SEC_HAS_CONTENTS
1256 | SEC_IN_MEMORY
1257 | SEC_LINKER_CREATED
1258 | SEC_READONLY));
1259 if (sreloc == NULL
1260 || ! bfd_set_section_alignment (dynobj, sreloc,
1261 SCORE_ELF_LOG_FILE_ALIGN (dynobj)))
1262 return NULL;
1263 }
1264 return sreloc;
1265 }
1266
1267 static void
1268 score_elf_allocate_dynamic_relocations (bfd *abfd, unsigned int n)
1269 {
1270 asection *s;
1271
1272 s = score_elf_rel_dyn_section (abfd, FALSE);
1273 BFD_ASSERT (s != NULL);
1274
1275 if (s->size == 0)
1276 {
1277 /* Make room for a null element. */
1278 s->size += SCORE_ELF_REL_SIZE (abfd);
1279 ++s->reloc_count;
1280 }
1281 s->size += n * SCORE_ELF_REL_SIZE (abfd);
1282 }
1283
1284 /* Create a rel.dyn relocation for the dynamic linker to resolve. REL
1285 is the original relocation, which is now being transformed into a
1286 dynamic relocation. The ADDENDP is adjusted if necessary; the
1287 caller should store the result in place of the original addend. */
1288 static bfd_boolean
1289 score_elf_create_dynamic_relocation (bfd *output_bfd,
1290 struct bfd_link_info *info,
1291 const Elf_Internal_Rela *rel,
1292 struct score_elf_link_hash_entry *h,
1293 bfd_vma symbol,
1294 bfd_vma *addendp, asection *input_section)
1295 {
1296 Elf_Internal_Rela outrel[3];
1297 asection *sreloc;
1298 bfd *dynobj;
1299 int r_type;
1300 long indx;
1301 bfd_boolean defined_p;
1302
1303 r_type = ELF32_R_TYPE (rel->r_info);
1304 dynobj = elf_hash_table (info)->dynobj;
1305 sreloc = score_elf_rel_dyn_section (dynobj, FALSE);
1306 BFD_ASSERT (sreloc != NULL);
1307 BFD_ASSERT (sreloc->contents != NULL);
1308 BFD_ASSERT (sreloc->reloc_count * SCORE_ELF_REL_SIZE (output_bfd) < sreloc->size);
1309
1310 outrel[0].r_offset =
1311 _bfd_elf_section_offset (output_bfd, info, input_section, rel[0].r_offset);
1312 outrel[1].r_offset =
1313 _bfd_elf_section_offset (output_bfd, info, input_section, rel[1].r_offset);
1314 outrel[2].r_offset =
1315 _bfd_elf_section_offset (output_bfd, info, input_section, rel[2].r_offset);
1316
1317 if (outrel[0].r_offset == MINUS_ONE)
1318 /* The relocation field has been deleted. */
1319 return TRUE;
1320
1321 if (outrel[0].r_offset == MINUS_TWO)
1322 {
1323 /* The relocation field has been converted into a relative value of
1324 some sort. Functions like _bfd_elf_write_section_eh_frame expect
1325 the field to be fully relocated, so add in the symbol's value. */
1326 *addendp += symbol;
1327 return TRUE;
1328 }
1329
1330 /* We must now calculate the dynamic symbol table index to use
1331 in the relocation. */
1332 if (h != NULL
1333 && (! info->symbolic || !h->root.def_regular)
1334 /* h->root.dynindx may be -1 if this symbol was marked to
1335 become local. */
1336 && h->root.dynindx != -1)
1337 {
1338 indx = h->root.dynindx;
1339 /* ??? glibc's ld.so just adds the final GOT entry to the
1340 relocation field. It therefore treats relocs against
1341 defined symbols in the same way as relocs against
1342 undefined symbols. */
1343 defined_p = FALSE;
1344 }
1345 else
1346 {
1347 indx = 0;
1348 defined_p = TRUE;
1349 }
1350
1351 /* If the relocation was previously an absolute relocation and
1352 this symbol will not be referred to by the relocation, we must
1353 adjust it by the value we give it in the dynamic symbol table.
1354 Otherwise leave the job up to the dynamic linker. */
1355 if (defined_p && r_type != R_SCORE_REL32)
1356 *addendp += symbol;
1357
1358 /* The relocation is always an REL32 relocation because we don't
1359 know where the shared library will wind up at load-time. */
1360 outrel[0].r_info = ELF32_R_INFO ((unsigned long) indx, R_SCORE_REL32);
1361
1362 /* For strict adherence to the ABI specification, we should
1363 generate a R_SCORE_64 relocation record by itself before the
1364 _REL32/_64 record as well, such that the addend is read in as
1365 a 64-bit value (REL32 is a 32-bit relocation, after all).
1366 However, since none of the existing ELF64 SCORE dynamic
1367 loaders seems to care, we don't waste space with these
1368 artificial relocations. If this turns out to not be true,
1369 score_elf_allocate_dynamic_relocations() should be tweaked so
1370 as to make room for a pair of dynamic relocations per
1371 invocation if ABI_64_P, and here we should generate an
1372 additional relocation record with R_SCORE_64 by itself for a
1373 NULL symbol before this relocation record. */
1374 outrel[1].r_info = ELF32_R_INFO (0, R_SCORE_NONE);
1375 outrel[2].r_info = ELF32_R_INFO (0, R_SCORE_NONE);
1376
1377 /* Adjust the output offset of the relocation to reference the
1378 correct location in the output file. */
1379 outrel[0].r_offset += (input_section->output_section->vma
1380 + input_section->output_offset);
1381 outrel[1].r_offset += (input_section->output_section->vma
1382 + input_section->output_offset);
1383 outrel[2].r_offset += (input_section->output_section->vma
1384 + input_section->output_offset);
1385
1386 /* Put the relocation back out. We have to use the special
1387 relocation outputter in the 64-bit case since the 64-bit
1388 relocation format is non-standard. */
1389 bfd_elf32_swap_reloc_out
1390 (output_bfd, &outrel[0],
1391 (sreloc->contents + sreloc->reloc_count * sizeof (Elf32_External_Rel)));
1392
1393 /* We've now added another relocation. */
1394 ++sreloc->reloc_count;
1395
1396 /* Make sure the output section is writable. The dynamic linker
1397 will be writing to it. */
1398 elf_section_data (input_section->output_section)->this_hdr.sh_flags |= SHF_WRITE;
1399
1400 return TRUE;
1401 }
1402
1403 static bfd_boolean
1404 score_elf_create_got_section (bfd *abfd,
1405 struct bfd_link_info *info,
1406 bfd_boolean maybe_exclude)
1407 {
1408 flagword flags;
1409 asection *s;
1410 struct elf_link_hash_entry *h;
1411 struct bfd_link_hash_entry *bh;
1412 struct score_got_info *g;
1413 bfd_size_type amt;
1414
1415 /* This function may be called more than once. */
1416 s = score_elf_got_section (abfd, TRUE);
1417 if (s)
1418 {
1419 if (! maybe_exclude)
1420 s->flags &= ~SEC_EXCLUDE;
1421 return TRUE;
1422 }
1423
1424 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1425
1426 if (maybe_exclude)
1427 flags |= SEC_EXCLUDE;
1428
1429 /* We have to use an alignment of 2**4 here because this is hardcoded
1430 in the function stub generation and in the linker script. */
1431 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
1432 elf_hash_table (info)->sgot = s;
1433 if (s == NULL
1434 || ! bfd_set_section_alignment (abfd, s, 4))
1435 return FALSE;
1436
1437 /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
1438 linker script because we don't want to define the symbol if we
1439 are not creating a global offset table. */
1440 bh = NULL;
1441 if (! (_bfd_generic_link_add_one_symbol
1442 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
1443 0, NULL, FALSE, get_elf_backend_data (abfd)->collect, &bh)))
1444 return FALSE;
1445
1446 h = (struct elf_link_hash_entry *) bh;
1447 h->non_elf = 0;
1448 h->def_regular = 1;
1449 h->type = STT_OBJECT;
1450 elf_hash_table (info)->hgot = h;
1451
1452 if (bfd_link_pic (info) && ! bfd_elf_link_record_dynamic_symbol (info, h))
1453 return FALSE;
1454
1455 amt = sizeof (struct score_got_info);
1456 g = bfd_alloc (abfd, amt);
1457 if (g == NULL)
1458 return FALSE;
1459
1460 g->global_gotsym = NULL;
1461 g->global_gotno = 0;
1462
1463 g->local_gotno = SCORE_RESERVED_GOTNO;
1464 g->assigned_gotno = SCORE_RESERVED_GOTNO;
1465 g->next = NULL;
1466
1467 g->got_entries = htab_try_create (1, score_elf_got_entry_hash,
1468 score_elf_got_entry_eq, NULL);
1469 if (g->got_entries == NULL)
1470 return FALSE;
1471 score_elf_section_data (s)->u.got_info = g;
1472 score_elf_section_data (s)->elf.this_hdr.sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL;
1473
1474 return TRUE;
1475 }
1476
1477 /* Calculate the %high function. */
1478 static bfd_vma
1479 score_elf_high (bfd_vma value)
1480 {
1481 return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
1482 }
1483
1484 /* Create a local GOT entry for VALUE. Return the index of the entry,
1485 or -1 if it could not be created. */
1486 static struct score_got_entry *
1487 score_elf_create_local_got_entry (bfd *abfd,
1488 bfd *ibfd ATTRIBUTE_UNUSED,
1489 struct score_got_info *gg,
1490 asection *sgot, bfd_vma value,
1491 unsigned long r_symndx ATTRIBUTE_UNUSED,
1492 struct score_elf_link_hash_entry *h ATTRIBUTE_UNUSED,
1493 int r_type ATTRIBUTE_UNUSED)
1494 {
1495 struct score_got_entry entry, **loc;
1496 struct score_got_info *g;
1497
1498 entry.abfd = NULL;
1499 entry.symndx = -1;
1500 entry.d.address = value;
1501
1502 g = gg;
1503 loc = (struct score_got_entry **) htab_find_slot (g->got_entries, &entry, INSERT);
1504 if (*loc)
1505 return *loc;
1506
1507 entry.gotidx = SCORE_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
1508
1509 *loc = bfd_alloc (abfd, sizeof entry);
1510
1511 if (! *loc)
1512 return NULL;
1513
1514 memcpy (*loc, &entry, sizeof entry);
1515
1516 if (g->assigned_gotno >= g->local_gotno)
1517 {
1518 (*loc)->gotidx = -1;
1519 /* We didn't allocate enough space in the GOT. */
1520 _bfd_error_handler
1521 (_("not enough GOT space for local GOT entries"));
1522 bfd_set_error (bfd_error_bad_value);
1523 return NULL;
1524 }
1525
1526 score_bfd_put_32 (abfd, value, (sgot->contents + entry.gotidx));
1527
1528 return *loc;
1529 }
1530
1531 /* Find a GOT entry whose higher-order 16 bits are the same as those
1532 for value. Return the index into the GOT for this entry. */
1533 static bfd_vma
1534 score_elf_got16_entry (bfd *abfd, bfd *ibfd, struct bfd_link_info *info,
1535 bfd_vma value, bfd_boolean external)
1536 {
1537 asection *sgot;
1538 struct score_got_info *g;
1539 struct score_got_entry *entry;
1540
1541 if (!external)
1542 {
1543 /* Although the ABI says that it is "the high-order 16 bits" that we
1544 want, it is really the %high value. The complete value is
1545 calculated with a `addiu' of a LO16 relocation, just as with a
1546 HI16/LO16 pair. */
1547 value = score_elf_high (value) << 16;
1548 }
1549
1550 g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
1551
1552 entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, 0, NULL,
1553 R_SCORE_GOT15);
1554 if (entry)
1555 return entry->gotidx;
1556 else
1557 return MINUS_ONE;
1558 }
1559
1560 static void
1561 s3_bfd_score_elf_hide_symbol (struct bfd_link_info *info,
1562 struct elf_link_hash_entry *entry,
1563 bfd_boolean force_local)
1564 {
1565 bfd *dynobj;
1566 asection *got;
1567 struct score_got_info *g;
1568 struct score_elf_link_hash_entry *h;
1569
1570 h = (struct score_elf_link_hash_entry *) entry;
1571 if (h->forced_local)
1572 return;
1573 h->forced_local = TRUE;
1574
1575 dynobj = elf_hash_table (info)->dynobj;
1576 if (dynobj != NULL && force_local)
1577 {
1578 got = score_elf_got_section (dynobj, FALSE);
1579 if (got == NULL)
1580 return;
1581 g = score_elf_section_data (got)->u.got_info;
1582
1583 if (g->next)
1584 {
1585 struct score_got_entry e;
1586 struct score_got_info *gg = g;
1587
1588 /* Since we're turning what used to be a global symbol into a
1589 local one, bump up the number of local entries of each GOT
1590 that had an entry for it. This will automatically decrease
1591 the number of global entries, since global_gotno is actually
1592 the upper limit of global entries. */
1593 e.abfd = dynobj;
1594 e.symndx = -1;
1595 e.d.h = h;
1596
1597 for (g = g->next; g != gg; g = g->next)
1598 if (htab_find (g->got_entries, &e))
1599 {
1600 BFD_ASSERT (g->global_gotno > 0);
1601 g->local_gotno++;
1602 g->global_gotno--;
1603 }
1604
1605 /* If this was a global symbol forced into the primary GOT, we
1606 no longer need an entry for it. We can't release the entry
1607 at this point, but we must at least stop counting it as one
1608 of the symbols that required a forced got entry. */
1609 if (h->root.got.offset == 2)
1610 {
1611 BFD_ASSERT (gg->assigned_gotno > 0);
1612 gg->assigned_gotno--;
1613 }
1614 }
1615 else if (g->global_gotno == 0 && g->global_gotsym == NULL)
1616 /* If we haven't got through GOT allocation yet, just bump up the
1617 number of local entries, as this symbol won't be counted as
1618 global. */
1619 g->local_gotno++;
1620 else if (h->root.got.offset == 1)
1621 {
1622 /* If we're past non-multi-GOT allocation and this symbol had
1623 been marked for a global got entry, give it a local entry
1624 instead. */
1625 BFD_ASSERT (g->global_gotno > 0);
1626 g->local_gotno++;
1627 g->global_gotno--;
1628 }
1629 }
1630
1631 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1632 }
1633
1634 /* If H is a symbol that needs a global GOT entry, but has a dynamic
1635 symbol table index lower than any we've seen to date, record it for
1636 posterity. */
1637 static bfd_boolean
1638 score_elf_record_global_got_symbol (struct elf_link_hash_entry *h,
1639 bfd *abfd,
1640 struct bfd_link_info *info,
1641 struct score_got_info *g)
1642 {
1643 struct score_got_entry entry, **loc;
1644
1645 /* A global symbol in the GOT must also be in the dynamic symbol table. */
1646 if (h->dynindx == -1)
1647 {
1648 switch (ELF_ST_VISIBILITY (h->other))
1649 {
1650 case STV_INTERNAL:
1651 case STV_HIDDEN:
1652 s3_bfd_score_elf_hide_symbol (info, h, TRUE);
1653 break;
1654 }
1655 if (!bfd_elf_link_record_dynamic_symbol (info, h))
1656 return FALSE;
1657 }
1658
1659 entry.abfd = abfd;
1660 entry.symndx = -1;
1661 entry.d.h = (struct score_elf_link_hash_entry *)h;
1662
1663 loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT);
1664
1665 /* If we've already marked this entry as needing GOT space, we don't
1666 need to do it again. */
1667 if (*loc)
1668 return TRUE;
1669
1670 *loc = bfd_alloc (abfd, sizeof entry);
1671 if (! *loc)
1672 return FALSE;
1673
1674 entry.gotidx = -1;
1675
1676 memcpy (*loc, &entry, sizeof (entry));
1677
1678 if (h->got.offset != MINUS_ONE)
1679 return TRUE;
1680
1681 /* By setting this to a value other than -1, we are indicating that
1682 there needs to be a GOT entry for H. Avoid using zero, as the
1683 generic ELF copy_indirect_symbol tests for <= 0. */
1684 h->got.offset = 1;
1685
1686 return TRUE;
1687 }
1688
1689 /* Reserve space in G for a GOT entry containing the value of symbol
1690 SYMNDX in input bfd ABDF, plus ADDEND. */
1691 static bfd_boolean
1692 score_elf_record_local_got_symbol (bfd *abfd,
1693 long symndx,
1694 bfd_vma addend,
1695 struct score_got_info *g)
1696 {
1697 struct score_got_entry entry, **loc;
1698
1699 entry.abfd = abfd;
1700 entry.symndx = symndx;
1701 entry.d.addend = addend;
1702 loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT);
1703
1704 if (*loc)
1705 return TRUE;
1706
1707 entry.gotidx = g->local_gotno++;
1708
1709 *loc = bfd_alloc (abfd, sizeof(entry));
1710 if (! *loc)
1711 return FALSE;
1712
1713 memcpy (*loc, &entry, sizeof (entry));
1714
1715 return TRUE;
1716 }
1717
1718 /* Returns the GOT offset at which the indicated address can be found.
1719 If there is not yet a GOT entry for this value, create one.
1720 Returns -1 if no satisfactory GOT offset can be found. */
1721 static bfd_vma
1722 score_elf_local_got_index (bfd *abfd, bfd *ibfd, struct bfd_link_info *info,
1723 bfd_vma value, unsigned long r_symndx,
1724 struct score_elf_link_hash_entry *h, int r_type)
1725 {
1726 asection *sgot;
1727 struct score_got_info *g;
1728 struct score_got_entry *entry;
1729
1730 g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
1731
1732 entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value,
1733 r_symndx, h, r_type);
1734 if (!entry)
1735 return MINUS_ONE;
1736
1737 else
1738 return entry->gotidx;
1739 }
1740
1741 /* Returns the GOT index for the global symbol indicated by H. */
1742
1743 static bfd_vma
1744 score_elf_global_got_index (bfd *abfd, struct elf_link_hash_entry *h)
1745 {
1746 bfd_vma got_index;
1747 asection *sgot;
1748 struct score_got_info *g;
1749 long global_got_dynindx = 0;
1750
1751 g = score_elf_got_info (abfd, &sgot);
1752 if (g->global_gotsym != NULL)
1753 global_got_dynindx = g->global_gotsym->dynindx;
1754
1755 /* Once we determine the global GOT entry with the lowest dynamic
1756 symbol table index, we must put all dynamic symbols with greater
1757 indices into the GOT. That makes it easy to calculate the GOT
1758 offset. */
1759 BFD_ASSERT (h->dynindx >= global_got_dynindx);
1760 got_index = ((h->dynindx - global_got_dynindx + g->local_gotno) * SCORE_ELF_GOT_SIZE (abfd));
1761 BFD_ASSERT (got_index < sgot->size);
1762
1763 return got_index;
1764 }
1765
1766 /* Returns the offset for the entry at the INDEXth position in the GOT. */
1767
1768 static bfd_vma
1769 score_elf_got_offset_from_index (bfd *dynobj,
1770 bfd *output_bfd,
1771 bfd *input_bfd ATTRIBUTE_UNUSED,
1772 bfd_vma got_index)
1773 {
1774 asection *sgot;
1775 bfd_vma gp;
1776
1777 score_elf_got_info (dynobj, &sgot);
1778 gp = _bfd_get_gp_value (output_bfd);
1779
1780 return sgot->output_section->vma + sgot->output_offset + got_index - gp;
1781 }
1782
1783 /* Follow indirect and warning hash entries so that each got entry
1784 points to the final symbol definition. P must point to a pointer
1785 to the hash table we're traversing. Since this traversal may
1786 modify the hash table, we set this pointer to NULL to indicate
1787 we've made a potentially-destructive change to the hash table, so
1788 the traversal must be restarted. */
1789 static int
1790 score_elf_resolve_final_got_entry (void **entryp, void *p)
1791 {
1792 struct score_got_entry *entry = (struct score_got_entry *)*entryp;
1793 htab_t got_entries = *(htab_t *)p;
1794
1795 if (entry->abfd != NULL && entry->symndx == -1)
1796 {
1797 struct score_elf_link_hash_entry *h = entry->d.h;
1798
1799 while (h->root.root.type == bfd_link_hash_indirect
1800 || h->root.root.type == bfd_link_hash_warning)
1801 h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link;
1802
1803 if (entry->d.h == h)
1804 return 1;
1805
1806 entry->d.h = h;
1807
1808 /* If we can't find this entry with the new bfd hash, re-insert
1809 it, and get the traversal restarted. */
1810 if (! htab_find (got_entries, entry))
1811 {
1812 htab_clear_slot (got_entries, entryp);
1813 entryp = htab_find_slot (got_entries, entry, INSERT);
1814 if (! *entryp)
1815 *entryp = entry;
1816 /* Abort the traversal, since the whole table may have
1817 moved, and leave it up to the parent to restart the
1818 process. */
1819 *(htab_t *)p = NULL;
1820 return 0;
1821 }
1822 /* We might want to decrement the global_gotno count, but it's
1823 either too early or too late for that at this point. */
1824 }
1825
1826 return 1;
1827 }
1828
1829 /* Turn indirect got entries in a got_entries table into their final locations. */
1830 static void
1831 score_elf_resolve_final_got_entries (struct score_got_info *g)
1832 {
1833 htab_t got_entries;
1834
1835 do
1836 {
1837 got_entries = g->got_entries;
1838
1839 htab_traverse (got_entries,
1840 score_elf_resolve_final_got_entry,
1841 &got_entries);
1842 }
1843 while (got_entries == NULL);
1844 }
1845
1846 /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. for -r */
1847 static void
1848 score_elf_add_to_rel (bfd *abfd,
1849 bfd_byte *address,
1850 reloc_howto_type *howto,
1851 bfd_signed_vma increment)
1852 {
1853 bfd_signed_vma addend;
1854 bfd_vma contents;
1855 unsigned long offset;
1856 unsigned long r_type = howto->type;
1857 unsigned long hi16_addend, hi16_offset, hi16_value, uvalue;
1858
1859 contents = score_bfd_get_32 (abfd, address);
1860 /* Get the (signed) value from the instruction. */
1861 addend = contents & howto->src_mask;
1862 if (addend & ((howto->src_mask + 1) >> 1))
1863 {
1864 bfd_signed_vma mask;
1865
1866 mask = -1;
1867 mask &= ~howto->src_mask;
1868 addend |= mask;
1869 }
1870 /* Add in the increment, (which is a byte value). */
1871 switch (r_type)
1872 {
1873 case R_SCORE_PC19:
1874 offset =
1875 (((contents & howto->src_mask) & 0x3ff0000) >> 6) | ((contents & howto->src_mask) & 0x3ff);
1876 offset += increment;
1877 contents =
1878 (contents & ~howto->
1879 src_mask) | (((offset << 6) & howto->src_mask) & 0x3ff0000) | (offset & 0x3ff);
1880 score_bfd_put_32 (abfd, contents, address);
1881 break;
1882 case R_SCORE_HI16:
1883 break;
1884 case R_SCORE_LO16:
1885 hi16_addend = score_bfd_get_32 (abfd, address - 4);
1886 hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1;
1887 offset = ((((contents >> 16) & 0x3) << 15) | (contents & 0x7fff)) >> 1;
1888 offset = (hi16_offset << 16) | (offset & 0xffff);
1889 uvalue = increment + offset;
1890 hi16_offset = (uvalue >> 16) << 1;
1891 hi16_value = (hi16_addend & (~(howto->dst_mask)))
1892 | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
1893 score_bfd_put_32 (abfd, hi16_value, address - 4);
1894 offset = (uvalue & 0xffff) << 1;
1895 contents = (contents & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
1896 score_bfd_put_32 (abfd, contents, address);
1897 break;
1898 case R_SCORE_24:
1899 offset =
1900 (((contents & howto->src_mask) >> 1) & 0x1ff8000) | ((contents & howto->src_mask) & 0x7fff);
1901 offset += increment;
1902 contents =
1903 (contents & ~howto->
1904 src_mask) | (((offset << 1) & howto->src_mask) & 0x3ff0000) | (offset & 0x7fff);
1905 score_bfd_put_32 (abfd, contents, address);
1906 break;
1907
1908 case R_SCORE16_11:
1909
1910 contents = score_bfd_get_16 (abfd, address);
1911 offset = contents & howto->src_mask;
1912 offset += increment;
1913 contents = (contents & ~howto->src_mask) | (offset & howto->src_mask);
1914 score_bfd_put_16 (abfd, contents, address);
1915
1916 break;
1917 case R_SCORE16_PC8:
1918
1919 contents = score_bfd_get_16 (abfd, address);
1920 offset = (contents & howto->src_mask) + ((increment >> 1) & 0x1ff);
1921 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1922 score_bfd_put_16 (abfd, contents, address);
1923
1924 break;
1925
1926 case R_SCORE_BCMP:
1927 contents = score_bfd_get_32 (abfd, address);
1928 offset = (contents & howto->src_mask);
1929 offset <<= howto->rightshift;
1930 offset += increment;
1931 offset >>= howto->rightshift;
1932 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1933 score_bfd_put_32 (abfd, contents, address);
1934 break;
1935
1936 case R_SCORE_IMM30:
1937 contents = score_bfd_get_48 (abfd, address);
1938 offset = (contents & howto->src_mask);
1939 offset <<= howto->rightshift;
1940 offset += increment;
1941 offset >>= howto->rightshift;
1942 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1943 score_bfd_put_48 (abfd, contents, address);
1944 break;
1945
1946 case R_SCORE_IMM32:
1947 contents = score_bfd_get_48 (abfd, address);
1948 offset = (contents & howto->src_mask);
1949 offset += increment;
1950 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1951 score_bfd_put_48 (abfd, contents, address);
1952 break;
1953
1954 default:
1955 addend += increment;
1956 contents = (contents & ~howto->dst_mask) | (addend & howto->dst_mask);
1957 score_bfd_put_32 (abfd, contents, address);
1958 break;
1959 }
1960 }
1961
1962 /* Perform a relocation as part of a final link. */
1963 static bfd_reloc_status_type
1964 score_elf_final_link_relocate (reloc_howto_type *howto,
1965 bfd *input_bfd,
1966 bfd *output_bfd,
1967 asection *input_section,
1968 bfd_byte *contents,
1969 Elf_Internal_Rela *rel,
1970 Elf_Internal_Rela *relocs,
1971 bfd_vma symbol,
1972 struct bfd_link_info *info,
1973 const char *sym_name ATTRIBUTE_UNUSED,
1974 int sym_flags ATTRIBUTE_UNUSED,
1975 struct score_elf_link_hash_entry *h,
1976 asection **local_sections,
1977 bfd_boolean gp_disp_p)
1978 {
1979 unsigned long r_type;
1980 unsigned long r_symndx;
1981 bfd_byte *hit_data = contents + rel->r_offset;
1982 bfd_vma addend;
1983 /* The final GP value to be used for the relocatable, executable, or
1984 shared object file being produced. */
1985 bfd_vma gp = MINUS_ONE;
1986 /* The place (section offset or address) of the storage unit being relocated. */
1987 bfd_vma rel_addr;
1988 /* The offset into the global offset table at which the address of the relocation entry
1989 symbol, adjusted by the addend, resides during execution. */
1990 bfd_vma g = MINUS_ONE;
1991 /* TRUE if the symbol referred to by this relocation is a local symbol. */
1992 bfd_boolean local_p;
1993 /* The eventual value we will relocate. */
1994 bfd_vma value = symbol;
1995 unsigned long hi16_addend, hi16_offset, hi16_value, uvalue, offset, abs_value = 0;
1996
1997
1998 if (elf_gp (output_bfd) == 0)
1999 {
2000 struct bfd_link_hash_entry *bh;
2001 asection *o;
2002
2003 bh = bfd_link_hash_lookup (info->hash, "_gp", 0, 0, 1);
2004 if (bh != NULL && bh->type == bfd_link_hash_defined)
2005 elf_gp (output_bfd) = (bh->u.def.value
2006 + bh->u.def.section->output_section->vma
2007 + bh->u.def.section->output_offset);
2008 else if (bfd_link_relocatable (info))
2009 {
2010 bfd_vma lo = -1;
2011
2012 /* Find the GP-relative section with the lowest offset. */
2013 for (o = output_bfd->sections; o != NULL; o = o->next)
2014 if (o->vma < lo)
2015 lo = o->vma;
2016 /* And calculate GP relative to that. */
2017 elf_gp (output_bfd) = lo + ELF_SCORE_GP_OFFSET (input_bfd);
2018 }
2019 else
2020 {
2021 /* If the relocate_section function needs to do a reloc
2022 involving the GP value, it should make a reloc_dangerous
2023 callback to warn that GP is not defined. */
2024 }
2025 }
2026
2027 /* Parse the relocation. */
2028 r_symndx = ELF32_R_SYM (rel->r_info);
2029 r_type = ELF32_R_TYPE (rel->r_info);
2030 rel_addr = (input_section->output_section->vma + input_section->output_offset + rel->r_offset);
2031 local_p = score_elf_local_relocation_p (input_bfd, rel, local_sections, TRUE);
2032
2033 if (r_type == R_SCORE_GOT15)
2034 {
2035 const Elf_Internal_Rela *relend;
2036 const Elf_Internal_Rela *lo16_rel;
2037 const struct elf_backend_data *bed;
2038 bfd_vma lo_value = 0;
2039
2040 bed = get_elf_backend_data (output_bfd);
2041 relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
2042 lo16_rel = score_elf_next_relocation (input_bfd, R_SCORE_GOT_LO16, rel, relend);
2043 if ((local_p) && (lo16_rel != NULL))
2044 {
2045 bfd_vma tmp = 0;
2046 tmp = score_bfd_get_32 (input_bfd, contents + lo16_rel->r_offset);
2047 lo_value = (((tmp >> 16) & 0x3) << 14) | ((tmp & 0x7fff) >> 1);
2048 }
2049 addend = lo_value;
2050 }
2051 /* For score3 R_SCORE_ABS32. */
2052 else if (r_type == R_SCORE_ABS32 || r_type == R_SCORE_REL32)
2053 {
2054 addend = (bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask;
2055 }
2056 else
2057 {
2058 addend = (score_bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask;
2059 }
2060
2061 /* If we haven't already determined the GOT offset, or the GP value,
2062 and we're going to need it, get it now. */
2063 switch (r_type)
2064 {
2065 case R_SCORE_CALL15:
2066 case R_SCORE_GOT15:
2067 if (!local_p)
2068 {
2069 g = score_elf_global_got_index (elf_hash_table (info)->dynobj,
2070 (struct elf_link_hash_entry *) h);
2071 if ((! elf_hash_table (info)->dynamic_sections_created
2072 || (bfd_link_pic (info)
2073 && (info->symbolic || h->root.dynindx == -1)
2074 && h->root.def_regular)))
2075 {
2076 /* This is a static link or a -Bsymbolic link. The
2077 symbol is defined locally, or was forced to be local.
2078 We must initialize this entry in the GOT. */
2079 bfd *tmpbfd = elf_hash_table (info)->dynobj;
2080 asection *sgot = score_elf_got_section (tmpbfd, FALSE);
2081 score_bfd_put_32 (tmpbfd, value, sgot->contents + g);
2082 }
2083 }
2084 else if (r_type == R_SCORE_GOT15 || r_type == R_SCORE_CALL15)
2085 {
2086 /* There's no need to create a local GOT entry here; the
2087 calculation for a local GOT15 entry does not involve G. */
2088 ;
2089 }
2090 else
2091 {
2092 g = score_elf_local_got_index (output_bfd, input_bfd, info,
2093 symbol + addend, r_symndx, h, r_type);
2094 if (g == MINUS_ONE)
2095 return bfd_reloc_outofrange;
2096 }
2097
2098 /* Convert GOT indices to actual offsets. */
2099 g = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
2100 output_bfd, input_bfd, g);
2101 break;
2102
2103 case R_SCORE_HI16:
2104 case R_SCORE_LO16:
2105 case R_SCORE_GPREL32:
2106 gp = _bfd_get_gp_value (output_bfd);
2107 break;
2108
2109 case R_SCORE_GP15:
2110 gp = _bfd_get_gp_value (output_bfd);
2111
2112 default:
2113 break;
2114 }
2115
2116 switch (r_type)
2117 {
2118 case R_SCORE_NONE:
2119 return bfd_reloc_ok;
2120
2121 case R_SCORE_ABS32:
2122 case R_SCORE_REL32:
2123 if ((bfd_link_pic (info)
2124 || (elf_hash_table (info)->dynamic_sections_created
2125 && h != NULL
2126 && h->root.def_dynamic
2127 && !h->root.def_regular))
2128 && r_symndx != STN_UNDEF
2129 && (input_section->flags & SEC_ALLOC) != 0)
2130 {
2131 /* If we're creating a shared library, or this relocation is against a symbol
2132 in a shared library, then we can't know where the symbol will end up.
2133 So, we create a relocation record in the output, and leave the job up
2134 to the dynamic linker. */
2135 value = addend;
2136 if (!score_elf_create_dynamic_relocation (output_bfd, info, rel, h,
2137 symbol, &value,
2138 input_section))
2139 return bfd_reloc_undefined;
2140 }
2141 else if (r_symndx == STN_UNDEF)
2142 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
2143 from removed linkonce sections, or sections discarded by
2144 a linker script. */
2145 value = 0;
2146 else
2147 {
2148 if (r_type != R_SCORE_REL32)
2149 value = symbol + addend;
2150 else
2151 value = addend;
2152 }
2153 value &= howto->dst_mask;
2154 bfd_put_32 (input_bfd, value, hit_data);
2155 return bfd_reloc_ok;
2156
2157 case R_SCORE_ABS16:
2158 value += addend;
2159 if ((long)value > 0x7fff || (long)value < -0x8000)
2160 return bfd_reloc_overflow;
2161 score_bfd_put_16 (input_bfd, value, hit_data);
2162 return bfd_reloc_ok;
2163
2164 case R_SCORE_24:
2165 addend = score_bfd_get_32 (input_bfd, hit_data);
2166 offset = (((addend & howto->src_mask) >> 1) & 0x1ff8000) | ((addend & howto->src_mask) & 0x7fff);
2167 if ((offset & 0x1000000) != 0)
2168 offset |= 0xfe000000;
2169 value += offset;
2170 abs_value = value - rel_addr;
2171 if ((abs_value & 0xfe000000) != 0)
2172 return bfd_reloc_overflow;
2173 addend = (addend & ~howto->src_mask)
2174 | (((value << 1) & howto->src_mask) & 0x3ff0000) | (value & 0x7fff);
2175 score_bfd_put_32 (input_bfd, addend, hit_data);
2176 return bfd_reloc_ok;
2177
2178 /* signed imm32. */
2179 case R_SCORE_IMM30:
2180 {
2181 int not_word_align_p = 0;
2182 bfd_vma imm_offset = 0;
2183 addend = score_bfd_get_48 (input_bfd, hit_data);
2184 imm_offset = ((addend >> 7) & 0xff)
2185 | (((addend >> 16) & 0x7fff) << 8)
2186 | (((addend >> 32) & 0x7f) << 23);
2187 imm_offset <<= howto->rightshift;
2188 value += imm_offset;
2189 value &= 0xffffffff;
2190
2191 /* Check lw48/sw48 rd, value/label word align. */
2192 if ((value & 0x3) != 0)
2193 not_word_align_p = 1;
2194
2195 value >>= howto->rightshift;
2196 addend = (addend & ~howto->src_mask)
2197 | (((value & 0xff) >> 0) << 7)
2198 | (((value & 0x7fff00) >> 8) << 16)
2199 | (((value & 0x3f800000) >> 23) << 32);
2200 score_bfd_put_48 (input_bfd, addend, hit_data);
2201 if (not_word_align_p)
2202 return bfd_reloc_other;
2203 else
2204 return bfd_reloc_ok;
2205 }
2206
2207 case R_SCORE_IMM32:
2208 {
2209 bfd_vma imm_offset = 0;
2210 addend = score_bfd_get_48 (input_bfd, hit_data);
2211 imm_offset = ((addend >> 5) & 0x3ff)
2212 | (((addend >> 16) & 0x7fff) << 10)
2213 | (((addend >> 32) & 0x7f) << 25);
2214 value += imm_offset;
2215 value &= 0xffffffff;
2216 addend = (addend & ~howto->src_mask)
2217 | ((value & 0x3ff) << 5)
2218 | (((value >> 10) & 0x7fff) << 16)
2219 | (((value >> 25) & 0x7f) << 32);
2220 score_bfd_put_48 (input_bfd, addend, hit_data);
2221 return bfd_reloc_ok;
2222 }
2223
2224 case R_SCORE_PC19:
2225 addend = score_bfd_get_32 (input_bfd, hit_data);
2226 offset = (((addend & howto->src_mask) & 0x3ff0000) >> 6) | ((addend & howto->src_mask) & 0x3ff);
2227 if ((offset & 0x80000) != 0)
2228 offset |= 0xfff00000;
2229 abs_value = value = value - rel_addr + offset;
2230 /* exceed 20 bit : overflow. */
2231 if ((abs_value & 0x80000000) == 0x80000000)
2232 abs_value = 0xffffffff - value + 1;
2233 if ((abs_value & 0xfff80000) != 0)
2234 return bfd_reloc_overflow;
2235 addend = (addend & ~howto->src_mask)
2236 | (((value << 6) & howto->src_mask) & 0x3ff0000) | (value & 0x3ff);
2237 score_bfd_put_32 (input_bfd, addend, hit_data);
2238 return bfd_reloc_ok;
2239
2240 case R_SCORE16_11:
2241 addend = score_bfd_get_16 (input_bfd, hit_data);
2242 offset = addend & howto->src_mask;
2243 if ((offset & 0x800) != 0) /* Offset is negative. */
2244 offset |= 0xfffff000;
2245 value += offset;
2246 abs_value = value - rel_addr;
2247 if ((abs_value & 0xfffff000) != 0)
2248 return bfd_reloc_overflow;
2249 addend = (addend & ~howto->src_mask) | (value & howto->src_mask);
2250 score_bfd_put_16 (input_bfd, addend, hit_data);
2251 return bfd_reloc_ok;
2252
2253 case R_SCORE16_PC8:
2254 addend = score_bfd_get_16 (input_bfd, hit_data);
2255 offset = (addend & howto->src_mask) << 1;
2256 if ((offset & 0x200) != 0) /* Offset is negative. */
2257 offset |= 0xfffffe00;
2258 abs_value = value = value - rel_addr + offset;
2259 /* Sign bit + exceed 9 bit. */
2260 if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00))
2261 return bfd_reloc_overflow;
2262 value >>= 1;
2263 addend = (addend & ~howto->src_mask) | (value & howto->src_mask);
2264 score_bfd_put_16 (input_bfd, addend, hit_data);
2265 return bfd_reloc_ok;
2266
2267 case R_SCORE_BCMP:
2268 addend = score_bfd_get_32 (input_bfd, hit_data);
2269 offset = (addend & howto->src_mask) << howto->rightshift;
2270 if ((offset & 0x200) != 0) /* Offset is negative. */
2271 offset |= 0xfffffe00;
2272 value = value - rel_addr + offset;
2273 /* Sign bit + exceed 9 bit. */
2274 if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00))
2275 return bfd_reloc_overflow;
2276 value >>= howto->rightshift;
2277 addend = (addend & ~howto->src_mask)
2278 | (value & 0x1)
2279 | (((value >> 1) & 0x7) << 7)
2280 | (((value >> 4) & 0x1f) << 21);
2281 score_bfd_put_32 (input_bfd, addend, hit_data);
2282 return bfd_reloc_ok;
2283
2284 case R_SCORE_HI16:
2285 return bfd_reloc_ok;
2286
2287 case R_SCORE_LO16:
2288 hi16_addend = score_bfd_get_32 (input_bfd, hit_data - 4);
2289 hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1;
2290 addend = score_bfd_get_32 (input_bfd, hit_data);
2291 offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1;
2292 offset = (hi16_offset << 16) | (offset & 0xffff);
2293
2294 if (!gp_disp_p)
2295 uvalue = value + offset;
2296 else
2297 uvalue = offset + gp - rel_addr + 4;
2298
2299 hi16_offset = (uvalue >> 16) << 1;
2300 hi16_value = (hi16_addend & (~(howto->dst_mask)))
2301 | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
2302 score_bfd_put_32 (input_bfd, hi16_value, hit_data - 4);
2303 offset = (uvalue & 0xffff) << 1;
2304 value = (addend & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
2305 score_bfd_put_32 (input_bfd, value, hit_data);
2306 return bfd_reloc_ok;
2307
2308 case R_SCORE_GP15:
2309 addend = score_bfd_get_32 (input_bfd, hit_data);
2310 offset = addend & 0x7fff;
2311 if ((offset & 0x4000) == 0x4000)
2312 offset |= 0xffffc000;
2313 value = value + offset - gp;
2314 if (((value & 0xffffc000) != 0) && ((value & 0xffffc000) != 0xffffc000))
2315 return bfd_reloc_overflow;
2316 value = (addend & ~howto->src_mask) | (value & howto->src_mask);
2317 score_bfd_put_32 (input_bfd, value, hit_data);
2318 return bfd_reloc_ok;
2319
2320 case R_SCORE_GOT15:
2321 case R_SCORE_CALL15:
2322 if (local_p)
2323 {
2324 bfd_boolean forced;
2325
2326 /* The special case is when the symbol is forced to be local. We need the
2327 full address in the GOT since no R_SCORE_GOT_LO16 relocation follows. */
2328 forced = ! score_elf_local_relocation_p (input_bfd, rel,
2329 local_sections, FALSE);
2330 value = score_elf_got16_entry (output_bfd, input_bfd, info,
2331 symbol + addend, forced);
2332 if (value == MINUS_ONE)
2333 return bfd_reloc_outofrange;
2334 value = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
2335 output_bfd, input_bfd, value);
2336 }
2337 else
2338 {
2339 value = g;
2340 }
2341
2342 if ((long) value > 0x3fff || (long) value < -0x4000)
2343 return bfd_reloc_overflow;
2344
2345 addend = score_bfd_get_32 (input_bfd, hit_data);
2346 value = (addend & ~howto->dst_mask) | (value & howto->dst_mask);
2347 score_bfd_put_32 (input_bfd, value, hit_data);
2348 return bfd_reloc_ok;
2349
2350 case R_SCORE_GPREL32:
2351 value = (addend + symbol - gp);
2352 value &= howto->dst_mask;
2353 score_bfd_put_32 (input_bfd, value, hit_data);
2354 return bfd_reloc_ok;
2355
2356 case R_SCORE_GOT_LO16:
2357 addend = score_bfd_get_32 (input_bfd, hit_data);
2358 value = (((addend >> 16) & 0x3) << 14) | ((addend & 0x7fff) >> 1);
2359 value += symbol;
2360 value = (addend & (~(howto->dst_mask))) | ((value & 0x3fff) << 1)
2361 | (((value >> 14) & 0x3) << 16);
2362
2363 score_bfd_put_32 (input_bfd, value, hit_data);
2364 return bfd_reloc_ok;
2365
2366 case R_SCORE_DUMMY_HI16:
2367 return bfd_reloc_ok;
2368
2369 case R_SCORE_GNU_VTINHERIT:
2370 case R_SCORE_GNU_VTENTRY:
2371 /* We don't do anything with these at present. */
2372 return bfd_reloc_continue;
2373
2374 default:
2375 return bfd_reloc_notsupported;
2376 }
2377 }
2378
2379 /* Score backend functions. */
2380 static void
2381 s3_bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2382 arelent *bfd_reloc,
2383 Elf_Internal_Rela *elf_reloc)
2384 {
2385 unsigned int r_type;
2386
2387 r_type = ELF32_R_TYPE (elf_reloc->r_info);
2388 if (r_type >= ARRAY_SIZE (elf32_score_howto_table))
2389 bfd_reloc->howto = NULL;
2390 else
2391 bfd_reloc->howto = &elf32_score_howto_table[r_type];
2392 }
2393
2394 /* Relocate an score ELF section. */
2395 static bfd_boolean
2396 s3_bfd_score_elf_relocate_section (bfd *output_bfd,
2397 struct bfd_link_info *info,
2398 bfd *input_bfd,
2399 asection *input_section,
2400 bfd_byte *contents,
2401 Elf_Internal_Rela *relocs,
2402 Elf_Internal_Sym *local_syms,
2403 asection **local_sections)
2404 {
2405 Elf_Internal_Shdr *symtab_hdr;
2406 Elf_Internal_Rela *rel;
2407 Elf_Internal_Rela *relend;
2408 const char *name;
2409 unsigned long offset;
2410 unsigned long hi16_addend, hi16_offset, hi16_value, uvalue;
2411 size_t extsymoff;
2412 bfd_boolean gp_disp_p = FALSE;
2413
2414 /* Sort dynsym. */
2415 if (elf_hash_table (info)->dynamic_sections_created)
2416 {
2417 bfd_size_type dynsecsymcount = 0;
2418 if (bfd_link_pic (info))
2419 {
2420 asection * p;
2421 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
2422
2423 for (p = output_bfd->sections; p ; p = p->next)
2424 if ((p->flags & SEC_EXCLUDE) == 0
2425 && (p->flags & SEC_ALLOC) != 0
2426 && !(*bed->elf_backend_omit_section_dynsym) (output_bfd, info, p))
2427 ++ dynsecsymcount;
2428 }
2429
2430 if (!score_elf_sort_hash_table (info, dynsecsymcount + 1))
2431 return FALSE;
2432 }
2433
2434 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2435 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
2436 rel = relocs;
2437 relend = relocs + input_section->reloc_count;
2438 for (; rel < relend; rel++)
2439 {
2440 int r_type;
2441 reloc_howto_type *howto;
2442 unsigned long r_symndx;
2443 Elf_Internal_Sym *sym;
2444 asection *sec;
2445 struct score_elf_link_hash_entry *h;
2446 bfd_vma relocation = 0;
2447 bfd_reloc_status_type r;
2448 arelent bfd_reloc;
2449
2450 r_symndx = ELF32_R_SYM (rel->r_info);
2451 r_type = ELF32_R_TYPE (rel->r_info);
2452
2453 s3_bfd_score_info_to_howto (input_bfd, &bfd_reloc, (Elf_Internal_Rela *) rel);
2454 howto = bfd_reloc.howto;
2455
2456 h = NULL;
2457 sym = NULL;
2458 sec = NULL;
2459
2460 if (r_symndx < extsymoff)
2461 {
2462 sym = local_syms + r_symndx;
2463 sec = local_sections[r_symndx];
2464 relocation = (sec->output_section->vma
2465 + sec->output_offset
2466 + sym->st_value);
2467 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
2468
2469 if (!bfd_link_relocatable (info)
2470 && (sec->flags & SEC_MERGE)
2471 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2472 {
2473 asection *msec;
2474 bfd_vma addend, value;
2475
2476 switch (r_type)
2477 {
2478 case R_SCORE_HI16:
2479 break;
2480 case R_SCORE_LO16:
2481 hi16_addend = score_bfd_get_32 (input_bfd, contents + rel->r_offset - 4);
2482 hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1;
2483 value = score_bfd_get_32 (input_bfd, contents + rel->r_offset);
2484 offset = ((((value >> 16) & 0x3) << 15) | (value & 0x7fff)) >> 1;
2485 addend = (hi16_offset << 16) | (offset & 0xffff);
2486 msec = sec;
2487 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
2488 addend -= relocation;
2489 addend += msec->output_section->vma + msec->output_offset;
2490 uvalue = addend;
2491 hi16_offset = (uvalue >> 16) << 1;
2492 hi16_value = (hi16_addend & (~(howto->dst_mask)))
2493 | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
2494 score_bfd_put_32 (input_bfd, hi16_value, contents + rel->r_offset - 4);
2495 offset = (uvalue & 0xffff) << 1;
2496 value = (value & (~(howto->dst_mask)))
2497 | (offset & 0x7fff) | ((offset << 1) & 0x30000);
2498 score_bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2499 break;
2500
2501 case R_SCORE_IMM32:
2502 {
2503 value = score_bfd_get_48 (input_bfd, contents + rel->r_offset);
2504 addend = ((value >> 5) & 0x3ff)
2505 | (((value >> 16) & 0x7fff) << 10)
2506 | (((value >> 32) & 0x7f) << 25);
2507 msec = sec;
2508 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
2509 addend -= relocation;
2510 addend += msec->output_section->vma + msec->output_offset;
2511 addend &= 0xffffffff;
2512 value = (value & ~howto->src_mask)
2513 | ((addend & 0x3ff) << 5)
2514 | (((addend >> 10) & 0x7fff) << 16)
2515 | (((addend >> 25) & 0x7f) << 32);
2516 score_bfd_put_48 (input_bfd, value, contents + rel->r_offset);
2517 break;
2518 }
2519
2520 case R_SCORE_IMM30:
2521 {
2522 int not_word_align_p = 0;
2523 value = score_bfd_get_48 (input_bfd, contents + rel->r_offset);
2524 addend = ((value >> 7) & 0xff)
2525 | (((value >> 16) & 0x7fff) << 8)
2526 | (((value >> 32) & 0x7f) << 23);
2527 addend <<= howto->rightshift;
2528 msec = sec;
2529 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
2530 addend -= relocation;
2531 addend += msec->output_section->vma + msec->output_offset;
2532 addend &= 0xffffffff;
2533
2534 /* Check lw48/sw48 rd, value/label word align. */
2535 if ((addend & 0x3) != 0)
2536 not_word_align_p = 1;
2537
2538 addend >>= howto->rightshift;
2539 value = (value & ~howto->src_mask)
2540 | (((addend & 0xff) >> 0) << 7)
2541 | (((addend & 0x7fff00) >> 8) << 16)
2542 | (((addend & 0x3f800000) >> 23) << 32);
2543 score_bfd_put_48 (input_bfd, value, contents + rel->r_offset);
2544
2545 if (not_word_align_p)
2546 return bfd_reloc_other;
2547 else
2548 break;
2549 }
2550
2551 case R_SCORE_GOT_LO16:
2552 value = score_bfd_get_32 (input_bfd, contents + rel->r_offset);
2553 addend = (((value >> 16) & 0x3) << 14) | ((value & 0x7fff) >> 1);
2554 msec = sec;
2555 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation;
2556 addend += msec->output_section->vma + msec->output_offset;
2557 value = (value & (~(howto->dst_mask))) | ((addend & 0x3fff) << 1)
2558 | (((addend >> 14) & 0x3) << 16);
2559
2560 score_bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2561 break;
2562
2563 case R_SCORE_ABS32:
2564 case R_SCORE_REL32:
2565 value = bfd_get_32 (input_bfd, contents + rel->r_offset);
2566 /* Get the (signed) value from the instruction. */
2567 addend = value & howto->src_mask;
2568 if (addend & ((howto->src_mask + 1) >> 1))
2569 {
2570 bfd_signed_vma mask;
2571
2572 mask = -1;
2573 mask &= ~howto->src_mask;
2574 addend |= mask;
2575 }
2576 msec = sec;
2577 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation;
2578 addend += msec->output_section->vma + msec->output_offset;
2579 value = (value & ~howto->dst_mask) | (addend & howto->dst_mask);
2580 bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2581 break;
2582
2583 default:
2584 value = score_bfd_get_32 (input_bfd, contents + rel->r_offset);
2585 /* Get the (signed) value from the instruction. */
2586 addend = value & howto->src_mask;
2587 if (addend & ((howto->src_mask + 1) >> 1))
2588 {
2589 bfd_signed_vma mask;
2590
2591 mask = -1;
2592 mask &= ~howto->src_mask;
2593 addend |= mask;
2594 }
2595 msec = sec;
2596 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation;
2597 addend += msec->output_section->vma + msec->output_offset;
2598 value = (value & ~howto->dst_mask) | (addend & howto->dst_mask);
2599 score_bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2600 break;
2601 }
2602 }
2603 }
2604 else
2605 {
2606 /* For global symbols we look up the symbol in the hash-table. */
2607 h = ((struct score_elf_link_hash_entry *)
2608 elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
2609
2610 if (info->wrap_hash != NULL
2611 && (input_section->flags & SEC_DEBUGGING) != 0)
2612 h = ((struct score_elf_link_hash_entry *)
2613 unwrap_hash_lookup (info, input_bfd, &h->root.root));
2614
2615 /* Find the real hash-table entry for this symbol. */
2616 while (h->root.root.type == bfd_link_hash_indirect
2617 || h->root.root.type == bfd_link_hash_warning)
2618 h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link;
2619
2620 /* Record the name of this symbol, for our caller. */
2621 name = h->root.root.root.string;
2622
2623 /* See if this is the special GP_DISP_LABEL symbol. Note that such a
2624 symbol must always be a global symbol. */
2625 if (strcmp (name, GP_DISP_LABEL) == 0)
2626 {
2627 /* Relocations against GP_DISP_LABEL are permitted only with
2628 R_SCORE_HI16 and R_SCORE_LO16 relocations. */
2629 if (r_type != R_SCORE_HI16 && r_type != R_SCORE_LO16)
2630 return bfd_reloc_notsupported;
2631
2632 gp_disp_p = TRUE;
2633 }
2634
2635 /* If this symbol is defined, calculate its address. Note that
2636 GP_DISP_LABEL is a magic symbol, always implicitly defined by the
2637 linker, so it's inappropriate to check to see whether or not
2638 its defined. */
2639 else if ((h->root.root.type == bfd_link_hash_defined
2640 || h->root.root.type == bfd_link_hash_defweak)
2641 && h->root.root.u.def.section)
2642 {
2643 sec = h->root.root.u.def.section;
2644 if (sec->output_section)
2645 relocation = (h->root.root.u.def.value
2646 + sec->output_section->vma
2647 + sec->output_offset);
2648 else
2649 {
2650 relocation = h->root.root.u.def.value;
2651 }
2652 }
2653 else if (h->root.root.type == bfd_link_hash_undefweak)
2654 /* We allow relocations against undefined weak symbols, giving
2655 it the value zero, so that you can undefined weak functions
2656 and check to see if they exist by looking at their addresses. */
2657 relocation = 0;
2658 else if (info->unresolved_syms_in_objects == RM_IGNORE
2659 && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
2660 relocation = 0;
2661 else if (strcmp (name, "_DYNAMIC_LINK") == 0)
2662 {
2663 /* If this is a dynamic link, we should have created a _DYNAMIC_LINK symbol
2664 in s3_bfd_score_elf_create_dynamic_sections. Otherwise, we should define
2665 the symbol with a value of 0. */
2666 BFD_ASSERT (! bfd_link_pic (info));
2667 BFD_ASSERT (bfd_get_section_by_name (output_bfd, ".dynamic") == NULL);
2668 relocation = 0;
2669 }
2670 else if (!bfd_link_relocatable (info))
2671 {
2672 (*info->callbacks->undefined_symbol)
2673 (info, h->root.root.root.string, input_bfd,
2674 input_section, rel->r_offset,
2675 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR)
2676 || ELF_ST_VISIBILITY (h->root.other));
2677 relocation = 0;
2678 }
2679 }
2680
2681 if (sec != NULL && discarded_section (sec))
2682 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2683 rel, 1, relend, howto, 0, contents);
2684
2685 if (bfd_link_relocatable (info))
2686 {
2687 /* This is a relocatable link. We don't have to change
2688 anything, unless the reloc is against a section symbol,
2689 in which case we have to adjust according to where the
2690 section symbol winds up in the output section. */
2691 if (r_symndx < symtab_hdr->sh_info)
2692 {
2693 sym = local_syms + r_symndx;
2694 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2695 {
2696 sec = local_sections[r_symndx];
2697 score_elf_add_to_rel (input_bfd, contents + rel->r_offset,
2698 howto, (bfd_signed_vma) (sec->output_offset + sym->st_value));
2699 }
2700 }
2701 continue;
2702 }
2703
2704 /* This is a final link. */
2705 r = score_elf_final_link_relocate (howto, input_bfd, output_bfd,
2706 input_section, contents, rel, relocs,
2707 relocation, info, name,
2708 (h ? ELF_ST_TYPE ((unsigned int)h->root.root.type) :
2709 ELF_ST_TYPE ((unsigned int)sym->st_info)), h, local_sections,
2710 gp_disp_p);
2711
2712 if (r != bfd_reloc_ok)
2713 {
2714 const char *msg = (const char *)0;
2715
2716 switch (r)
2717 {
2718 case bfd_reloc_overflow:
2719 /* If the overflowing reloc was to an undefined symbol,
2720 we have already printed one error message and there
2721 is no point complaining again. */
2722 if (!h || h->root.root.type != bfd_link_hash_undefined)
2723 (*info->callbacks->reloc_overflow)
2724 (info, NULL, name, howto->name, (bfd_vma) 0,
2725 input_bfd, input_section, rel->r_offset);
2726 break;
2727 case bfd_reloc_undefined:
2728 (*info->callbacks->undefined_symbol)
2729 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
2730 break;
2731
2732 case bfd_reloc_outofrange:
2733 msg = _("internal error: out of range error");
2734 goto common_error;
2735
2736 case bfd_reloc_notsupported:
2737 msg = _("internal error: unsupported relocation error");
2738 goto common_error;
2739
2740 case bfd_reloc_dangerous:
2741 msg = _("internal error: dangerous error");
2742 goto common_error;
2743
2744 /* Use bfd_reloc_other to check lw48, sw48 word align. */
2745 case bfd_reloc_other:
2746 msg = _("address not word align");
2747 goto common_error;
2748
2749 default:
2750 msg = _("internal error: unknown error");
2751 /* Fall through. */
2752
2753 common_error:
2754 (*info->callbacks->warning) (info, msg, name, input_bfd,
2755 input_section, rel->r_offset);
2756 break;
2757 }
2758 }
2759 }
2760
2761 return TRUE;
2762 }
2763
2764 /* Look through the relocs for a section during the first phase, and
2765 allocate space in the global offset table. */
2766 static bfd_boolean
2767 s3_bfd_score_elf_check_relocs (bfd *abfd,
2768 struct bfd_link_info *info,
2769 asection *sec,
2770 const Elf_Internal_Rela *relocs)
2771 {
2772 const char *name;
2773 bfd *dynobj;
2774 Elf_Internal_Shdr *symtab_hdr;
2775 struct elf_link_hash_entry **sym_hashes;
2776 struct score_got_info *g;
2777 size_t extsymoff;
2778 const Elf_Internal_Rela *rel;
2779 const Elf_Internal_Rela *rel_end;
2780 asection *sgot;
2781 asection *sreloc;
2782 const struct elf_backend_data *bed;
2783
2784 if (bfd_link_relocatable (info))
2785 return TRUE;
2786
2787 dynobj = elf_hash_table (info)->dynobj;
2788 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2789 sym_hashes = elf_sym_hashes (abfd);
2790 extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
2791
2792 name = bfd_get_section_name (abfd, sec);
2793
2794 if (dynobj == NULL)
2795 {
2796 sgot = NULL;
2797 g = NULL;
2798 }
2799 else
2800 {
2801 sgot = score_elf_got_section (dynobj, FALSE);
2802 if (sgot == NULL)
2803 g = NULL;
2804 else
2805 {
2806 BFD_ASSERT (score_elf_section_data (sgot) != NULL);
2807 g = score_elf_section_data (sgot)->u.got_info;
2808 BFD_ASSERT (g != NULL);
2809 }
2810 }
2811
2812 sreloc = NULL;
2813 bed = get_elf_backend_data (abfd);
2814 rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
2815 for (rel = relocs; rel < rel_end; ++rel)
2816 {
2817 unsigned long r_symndx;
2818 unsigned int r_type;
2819 struct elf_link_hash_entry *h;
2820
2821 r_symndx = ELF32_R_SYM (rel->r_info);
2822 r_type = ELF32_R_TYPE (rel->r_info);
2823
2824 if (r_symndx < extsymoff)
2825 {
2826 h = NULL;
2827 }
2828 else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr))
2829 {
2830 _bfd_error_handler
2831 /* xgettext:c-format */
2832 (_("%s: Malformed reloc detected for section %s"), abfd, name);
2833 bfd_set_error (bfd_error_bad_value);
2834 return FALSE;
2835 }
2836 else
2837 {
2838 h = sym_hashes[r_symndx - extsymoff];
2839
2840 /* This may be an indirect symbol created because of a version. */
2841 if (h != NULL)
2842 {
2843 while (h->root.type == bfd_link_hash_indirect)
2844 h = (struct elf_link_hash_entry *)h->root.u.i.link;
2845
2846 /* PR15323, ref flags aren't set for references in the
2847 same object. */
2848 h->root.non_ir_ref = 1;
2849 }
2850 }
2851
2852 /* Some relocs require a global offset table. */
2853 if (dynobj == NULL || sgot == NULL)
2854 {
2855 switch (r_type)
2856 {
2857 case R_SCORE_GOT15:
2858 case R_SCORE_CALL15:
2859 if (dynobj == NULL)
2860 elf_hash_table (info)->dynobj = dynobj = abfd;
2861 if (!score_elf_create_got_section (dynobj, info, FALSE))
2862 return FALSE;
2863 g = score_elf_got_info (dynobj, &sgot);
2864 break;
2865 case R_SCORE_ABS32:
2866 case R_SCORE_REL32:
2867 if (dynobj == NULL
2868 && (bfd_link_pic (info) || h != NULL)
2869 && (sec->flags & SEC_ALLOC) != 0)
2870 elf_hash_table (info)->dynobj = dynobj = abfd;
2871 break;
2872 default:
2873 break;
2874 }
2875 }
2876
2877 if (!h && (r_type == R_SCORE_GOT_LO16))
2878 {
2879 if (! score_elf_record_local_got_symbol (abfd, r_symndx, rel->r_addend, g))
2880 return FALSE;
2881 }
2882
2883 switch (r_type)
2884 {
2885 case R_SCORE_CALL15:
2886 if (h == NULL)
2887 {
2888 _bfd_error_handler
2889 /* xgettext:c-format */
2890 (_("%B: CALL15 reloc at 0x%lx not against global symbol"),
2891 abfd, (unsigned long) rel->r_offset);
2892 bfd_set_error (bfd_error_bad_value);
2893 return FALSE;
2894 }
2895 else
2896 {
2897 /* This symbol requires a global offset table entry. */
2898 if (! score_elf_record_global_got_symbol (h, abfd, info, g))
2899 return FALSE;
2900
2901 /* We need a stub, not a plt entry for the undefined function. But we record
2902 it as if it needs plt. See _bfd_elf_adjust_dynamic_symbol. */
2903 h->needs_plt = 1;
2904 h->type = STT_FUNC;
2905 }
2906 break;
2907 case R_SCORE_GOT15:
2908 if (h && ! score_elf_record_global_got_symbol (h, abfd, info, g))
2909 return FALSE;
2910 break;
2911 case R_SCORE_ABS32:
2912 case R_SCORE_REL32:
2913 if ((bfd_link_pic (info) || h != NULL)
2914 && (sec->flags & SEC_ALLOC) != 0)
2915 {
2916 if (sreloc == NULL)
2917 {
2918 sreloc = score_elf_rel_dyn_section (dynobj, TRUE);
2919 if (sreloc == NULL)
2920 return FALSE;
2921 }
2922 #define SCORE_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
2923 if (bfd_link_pic (info))
2924 {
2925 /* When creating a shared object, we must copy these reloc types into
2926 the output file as R_SCORE_REL32 relocs. We make room for this reloc
2927 in the .rel.dyn reloc section. */
2928 score_elf_allocate_dynamic_relocations (dynobj, 1);
2929 if ((sec->flags & SCORE_READONLY_SECTION)
2930 == SCORE_READONLY_SECTION)
2931 /* We tell the dynamic linker that there are
2932 relocations against the text segment. */
2933 info->flags |= DF_TEXTREL;
2934 }
2935 else
2936 {
2937 struct score_elf_link_hash_entry *hscore;
2938
2939 /* We only need to copy this reloc if the symbol is
2940 defined in a dynamic object. */
2941 hscore = (struct score_elf_link_hash_entry *)h;
2942 ++hscore->possibly_dynamic_relocs;
2943 if ((sec->flags & SCORE_READONLY_SECTION)
2944 == SCORE_READONLY_SECTION)
2945 /* We need it to tell the dynamic linker if there
2946 are relocations against the text segment. */
2947 hscore->readonly_reloc = TRUE;
2948 }
2949
2950 /* Even though we don't directly need a GOT entry for this symbol,
2951 a symbol must have a dynamic symbol table index greater that
2952 DT_SCORE_GOTSYM if there are dynamic relocations against it. */
2953 if (h != NULL)
2954 {
2955 if (dynobj == NULL)
2956 elf_hash_table (info)->dynobj = dynobj = abfd;
2957 if (! score_elf_create_got_section (dynobj, info, TRUE))
2958 return FALSE;
2959 g = score_elf_got_info (dynobj, &sgot);
2960 if (! score_elf_record_global_got_symbol (h, abfd, info, g))
2961 return FALSE;
2962 }
2963 }
2964 break;
2965
2966 /* This relocation describes the C++ object vtable hierarchy.
2967 Reconstruct it for later use during GC. */
2968 case R_SCORE_GNU_VTINHERIT:
2969 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2970 return FALSE;
2971 break;
2972
2973 /* This relocation describes which C++ vtable entries are actually
2974 used. Record for later use during GC. */
2975 case R_SCORE_GNU_VTENTRY:
2976 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
2977 return FALSE;
2978 break;
2979 default:
2980 break;
2981 }
2982
2983 /* We must not create a stub for a symbol that has relocations
2984 related to taking the function's address. */
2985 switch (r_type)
2986 {
2987 default:
2988 if (h != NULL)
2989 {
2990 struct score_elf_link_hash_entry *sh;
2991
2992 sh = (struct score_elf_link_hash_entry *) h;
2993 sh->no_fn_stub = TRUE;
2994 }
2995 break;
2996 case R_SCORE_CALL15:
2997 break;
2998 }
2999 }
3000
3001 return TRUE;
3002 }
3003
3004 static bfd_boolean
3005 s3_bfd_score_elf_add_symbol_hook (bfd *abfd,
3006 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3007 Elf_Internal_Sym *sym,
3008 const char **namep ATTRIBUTE_UNUSED,
3009 flagword *flagsp ATTRIBUTE_UNUSED,
3010 asection **secp,
3011 bfd_vma *valp)
3012 {
3013 switch (sym->st_shndx)
3014 {
3015 case SHN_COMMON:
3016 if (sym->st_size > elf_gp_size (abfd))
3017 break;
3018 /* Fall through. */
3019 case SHN_SCORE_SCOMMON:
3020 *secp = bfd_make_section_old_way (abfd, ".scommon");
3021 (*secp)->flags |= SEC_IS_COMMON;
3022 *valp = sym->st_size;
3023 break;
3024 }
3025
3026 return TRUE;
3027 }
3028
3029 static void
3030 s3_bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym)
3031 {
3032 elf_symbol_type *elfsym;
3033
3034 elfsym = (elf_symbol_type *) asym;
3035 switch (elfsym->internal_elf_sym.st_shndx)
3036 {
3037 case SHN_COMMON:
3038 if (asym->value > elf_gp_size (abfd))
3039 break;
3040 /* Fall through. */
3041 case SHN_SCORE_SCOMMON:
3042 if (score_elf_scom_section.name == NULL)
3043 {
3044 /* Initialize the small common section. */
3045 score_elf_scom_section.name = ".scommon";
3046 score_elf_scom_section.flags = SEC_IS_COMMON;
3047 score_elf_scom_section.output_section = &score_elf_scom_section;
3048 score_elf_scom_section.symbol = &score_elf_scom_symbol;
3049 score_elf_scom_section.symbol_ptr_ptr = &score_elf_scom_symbol_ptr;
3050 score_elf_scom_symbol.name = ".scommon";
3051 score_elf_scom_symbol.flags = BSF_SECTION_SYM;
3052 score_elf_scom_symbol.section = &score_elf_scom_section;
3053 score_elf_scom_symbol_ptr = &score_elf_scom_symbol;
3054 }
3055 asym->section = &score_elf_scom_section;
3056 asym->value = elfsym->internal_elf_sym.st_size;
3057 break;
3058 }
3059 }
3060
3061 static int
3062 s3_bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3063 const char *name ATTRIBUTE_UNUSED,
3064 Elf_Internal_Sym *sym,
3065 asection *input_sec,
3066 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3067 {
3068 /* If we see a common symbol, which implies a relocatable link, then
3069 if a symbol was small common in an input file, mark it as small
3070 common in the output file. */
3071 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3072 sym->st_shndx = SHN_SCORE_SCOMMON;
3073
3074 return 1;
3075 }
3076
3077 static bfd_boolean
3078 s3_bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3079 asection *sec,
3080 int *retval)
3081 {
3082 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3083 {
3084 *retval = SHN_SCORE_SCOMMON;
3085 return TRUE;
3086 }
3087
3088 return FALSE;
3089 }
3090
3091 /* Adjust a symbol defined by a dynamic object and referenced by a
3092 regular object. The current definition is in some section of the
3093 dynamic object, but we're not including those sections. We have to
3094 change the definition to something the rest of the link can understand. */
3095 static bfd_boolean
3096 s3_bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
3097 struct elf_link_hash_entry *h)
3098 {
3099 bfd *dynobj;
3100 struct score_elf_link_hash_entry *hscore;
3101 asection *s;
3102
3103 dynobj = elf_hash_table (info)->dynobj;
3104
3105 /* Make sure we know what is going on here. */
3106 BFD_ASSERT (dynobj != NULL
3107 && (h->needs_plt
3108 || h->u.weakdef != NULL
3109 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
3110
3111 /* If this symbol is defined in a dynamic object, we need to copy
3112 any R_SCORE_ABS32 or R_SCORE_REL32 relocs against it into the output
3113 file. */
3114 hscore = (struct score_elf_link_hash_entry *)h;
3115 if (!bfd_link_relocatable (info)
3116 && hscore->possibly_dynamic_relocs != 0
3117 && (h->root.type == bfd_link_hash_defweak || !h->def_regular))
3118 {
3119 score_elf_allocate_dynamic_relocations (dynobj, hscore->possibly_dynamic_relocs);
3120 if (hscore->readonly_reloc)
3121 /* We tell the dynamic linker that there are relocations
3122 against the text segment. */
3123 info->flags |= DF_TEXTREL;
3124 }
3125
3126 /* For a function, create a stub, if allowed. */
3127 if (!hscore->no_fn_stub && h->needs_plt)
3128 {
3129 if (!elf_hash_table (info)->dynamic_sections_created)
3130 return TRUE;
3131
3132 /* If this symbol is not defined in a regular file, then set
3133 the symbol to the stub location. This is required to make
3134 function pointers compare as equal between the normal
3135 executable and the shared library. */
3136 if (!h->def_regular)
3137 {
3138 /* We need .stub section. */
3139 s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME);
3140 BFD_ASSERT (s != NULL);
3141
3142 h->root.u.def.section = s;
3143 h->root.u.def.value = s->size;
3144
3145 /* XXX Write this stub address somewhere. */
3146 h->plt.offset = s->size;
3147
3148 /* Make room for this stub code. */
3149 s->size += SCORE_FUNCTION_STUB_SIZE;
3150
3151 /* The last half word of the stub will be filled with the index
3152 of this symbol in .dynsym section. */
3153 return TRUE;
3154 }
3155 }
3156 else if ((h->type == STT_FUNC) && !h->needs_plt)
3157 {
3158 /* This will set the entry for this symbol in the GOT to 0, and
3159 the dynamic linker will take care of this. */
3160 h->root.u.def.value = 0;
3161 return TRUE;
3162 }
3163
3164 /* If this is a weak symbol, and there is a real definition, the
3165 processor independent code will have arranged for us to see the
3166 real definition first, and we can just use the same value. */
3167 if (h->u.weakdef != NULL)
3168 {
3169 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3170 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3171 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3172 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3173 return TRUE;
3174 }
3175
3176 /* This is a reference to a symbol defined by a dynamic object which
3177 is not a function. */
3178 return TRUE;
3179 }
3180
3181 /* This function is called after all the input files have been read,
3182 and the input sections have been assigned to output sections. */
3183 static bfd_boolean
3184 s3_bfd_score_elf_always_size_sections (bfd *output_bfd,
3185 struct bfd_link_info *info)
3186 {
3187 bfd *dynobj;
3188 asection *s;
3189 struct score_got_info *g;
3190 int i;
3191 bfd_size_type loadable_size = 0;
3192 bfd_size_type local_gotno;
3193 bfd *sub;
3194
3195 dynobj = elf_hash_table (info)->dynobj;
3196 if (dynobj == NULL)
3197 /* Relocatable links don't have it. */
3198 return TRUE;
3199
3200 g = score_elf_got_info (dynobj, &s);
3201 if (s == NULL)
3202 return TRUE;
3203
3204 /* Calculate the total loadable size of the output. That will give us the
3205 maximum number of GOT_PAGE entries required. */
3206 for (sub = info->input_bfds; sub; sub = sub->link.next)
3207 {
3208 asection *subsection;
3209
3210 for (subsection = sub->sections;
3211 subsection;
3212 subsection = subsection->next)
3213 {
3214 if ((subsection->flags & SEC_ALLOC) == 0)
3215 continue;
3216 loadable_size += ((subsection->size + 0xf)
3217 &~ (bfd_size_type) 0xf);
3218 }
3219 }
3220
3221 /* There has to be a global GOT entry for every symbol with
3222 a dynamic symbol table index of DT_SCORE_GOTSYM or
3223 higher. Therefore, it make sense to put those symbols
3224 that need GOT entries at the end of the symbol table. We
3225 do that here. */
3226 if (! score_elf_sort_hash_table (info, 1))
3227 return FALSE;
3228
3229 if (g->global_gotsym != NULL)
3230 i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
3231 else
3232 /* If there are no global symbols, or none requiring
3233 relocations, then GLOBAL_GOTSYM will be NULL. */
3234 i = 0;
3235
3236 /* In the worst case, we'll get one stub per dynamic symbol. */
3237 loadable_size += SCORE_FUNCTION_STUB_SIZE * i;
3238
3239 /* Assume there are two loadable segments consisting of
3240 contiguous sections. Is 5 enough? */
3241 local_gotno = (loadable_size >> 16) + 5;
3242
3243 g->local_gotno += local_gotno;
3244 s->size += g->local_gotno * SCORE_ELF_GOT_SIZE (output_bfd);
3245
3246 g->global_gotno = i;
3247 s->size += i * SCORE_ELF_GOT_SIZE (output_bfd);
3248
3249 score_elf_resolve_final_got_entries (g);
3250
3251 if (s->size > SCORE_ELF_GOT_MAX_SIZE (output_bfd))
3252 {
3253 /* Fixme. Error message or Warning message should be issued here. */
3254 }
3255
3256 return TRUE;
3257 }
3258
3259 /* Set the sizes of the dynamic sections. */
3260 static bfd_boolean
3261 s3_bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3262 {
3263 bfd *dynobj;
3264 asection *s;
3265 bfd_boolean reltext;
3266
3267 dynobj = elf_hash_table (info)->dynobj;
3268 BFD_ASSERT (dynobj != NULL);
3269
3270 if (elf_hash_table (info)->dynamic_sections_created)
3271 {
3272 /* Set the contents of the .interp section to the interpreter. */
3273 if (!bfd_link_pic (info) && !info->nointerp)
3274 {
3275 s = bfd_get_linker_section (dynobj, ".interp");
3276 BFD_ASSERT (s != NULL);
3277 s->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
3278 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3279 }
3280 }
3281
3282 /* The check_relocs and adjust_dynamic_symbol entry points have
3283 determined the sizes of the various dynamic sections. Allocate
3284 memory for them. */
3285 reltext = FALSE;
3286 for (s = dynobj->sections; s != NULL; s = s->next)
3287 {
3288 const char *name;
3289
3290 if ((s->flags & SEC_LINKER_CREATED) == 0)
3291 continue;
3292
3293 /* It's OK to base decisions on the section name, because none
3294 of the dynobj section names depend upon the input files. */
3295 name = bfd_get_section_name (dynobj, s);
3296
3297 if (CONST_STRNEQ (name, ".rel"))
3298 {
3299 if (s->size == 0)
3300 {
3301 /* We only strip the section if the output section name
3302 has the same name. Otherwise, there might be several
3303 input sections for this output section. FIXME: This
3304 code is probably not needed these days anyhow, since
3305 the linker now does not create empty output sections. */
3306 if (s->output_section != NULL
3307 && strcmp (name,
3308 bfd_get_section_name (s->output_section->owner,
3309 s->output_section)) == 0)
3310 s->flags |= SEC_EXCLUDE;
3311 }
3312 else
3313 {
3314 const char *outname;
3315 asection *target;
3316
3317 /* If this relocation section applies to a read only
3318 section, then we probably need a DT_TEXTREL entry.
3319 If the relocation section is .rel.dyn, we always
3320 assert a DT_TEXTREL entry rather than testing whether
3321 there exists a relocation to a read only section or
3322 not. */
3323 outname = bfd_get_section_name (output_bfd, s->output_section);
3324 target = bfd_get_section_by_name (output_bfd, outname + 4);
3325 if ((target != NULL
3326 && (target->flags & SEC_READONLY) != 0
3327 && (target->flags & SEC_ALLOC) != 0) || strcmp (outname, ".rel.dyn") == 0)
3328 reltext = TRUE;
3329
3330 /* We use the reloc_count field as a counter if we need
3331 to copy relocs into the output file. */
3332 if (strcmp (name, ".rel.dyn") != 0)
3333 s->reloc_count = 0;
3334 }
3335 }
3336 else if (CONST_STRNEQ (name, ".got"))
3337 {
3338 /* s3_bfd_score_elf_always_size_sections() has already done
3339 most of the work, but some symbols may have been mapped
3340 to versions that we must now resolve in the got_entries
3341 hash tables. */
3342 }
3343 else if (strcmp (name, SCORE_ELF_STUB_SECTION_NAME) == 0)
3344 {
3345 /* IRIX rld assumes that the function stub isn't at the end
3346 of .text section. So put a dummy. XXX */
3347 s->size += SCORE_FUNCTION_STUB_SIZE;
3348 }
3349 else if (! CONST_STRNEQ (name, ".init"))
3350 {
3351 /* It's not one of our sections, so don't allocate space. */
3352 continue;
3353 }
3354
3355 /* Allocate memory for the section contents. */
3356 s->contents = bfd_zalloc (dynobj, s->size);
3357 if (s->contents == NULL && s->size != 0)
3358 {
3359 bfd_set_error (bfd_error_no_memory);
3360 return FALSE;
3361 }
3362 }
3363
3364 if (elf_hash_table (info)->dynamic_sections_created)
3365 {
3366 /* Add some entries to the .dynamic section. We fill in the
3367 values later, in s3_bfd_score_elf_finish_dynamic_sections, but we
3368 must add the entries now so that we get the correct size for
3369 the .dynamic section. The DT_DEBUG entry is filled in by the
3370 dynamic linker and used by the debugger. */
3371
3372 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
3373 return FALSE;
3374
3375 if (reltext)
3376 info->flags |= DF_TEXTREL;
3377
3378 if ((info->flags & DF_TEXTREL) != 0)
3379 {
3380 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0))
3381 return FALSE;
3382 }
3383
3384 if (! SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0))
3385 return FALSE;
3386
3387 if (score_elf_rel_dyn_section (dynobj, FALSE))
3388 {
3389 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0))
3390 return FALSE;
3391
3392 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0))
3393 return FALSE;
3394
3395 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0))
3396 return FALSE;
3397 }
3398
3399 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_BASE_ADDRESS, 0))
3400 return FALSE;
3401
3402 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_LOCAL_GOTNO, 0))
3403 return FALSE;
3404
3405 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_SYMTABNO, 0))
3406 return FALSE;
3407
3408 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_UNREFEXTNO, 0))
3409 return FALSE;
3410
3411 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_GOTSYM, 0))
3412 return FALSE;
3413
3414 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_HIPAGENO, 0))
3415 return FALSE;
3416 }
3417
3418 return TRUE;
3419 }
3420
3421 static bfd_boolean
3422 s3_bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3423 {
3424 struct elf_link_hash_entry *h;
3425 struct bfd_link_hash_entry *bh;
3426 flagword flags;
3427 asection *s;
3428
3429 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3430 | SEC_LINKER_CREATED | SEC_READONLY);
3431
3432 /* ABI requests the .dynamic section to be read only. */
3433 s = bfd_get_linker_section (abfd, ".dynamic");
3434 if (s != NULL)
3435 {
3436 if (!bfd_set_section_flags (abfd, s, flags))
3437 return FALSE;
3438 }
3439
3440 /* We need to create .got section. */
3441 if (!score_elf_create_got_section (abfd, info, FALSE))
3442 return FALSE;
3443
3444 if (!score_elf_rel_dyn_section (elf_hash_table (info)->dynobj, TRUE))
3445 return FALSE;
3446
3447 /* Create .stub section. */
3448 if (bfd_get_linker_section (abfd, SCORE_ELF_STUB_SECTION_NAME) == NULL)
3449 {
3450 s = bfd_make_section_anyway_with_flags (abfd, SCORE_ELF_STUB_SECTION_NAME,
3451 flags | SEC_CODE);
3452 if (s == NULL
3453 || !bfd_set_section_alignment (abfd, s, 2))
3454
3455 return FALSE;
3456 }
3457
3458 if (!bfd_link_pic (info))
3459 {
3460 const char *name;
3461
3462 name = "_DYNAMIC_LINK";
3463 bh = NULL;
3464 if (!(_bfd_generic_link_add_one_symbol
3465 (info, abfd, name, BSF_GLOBAL, bfd_abs_section_ptr,
3466 (bfd_vma) 0, NULL, FALSE, get_elf_backend_data (abfd)->collect, &bh)))
3467 return FALSE;
3468
3469 h = (struct elf_link_hash_entry *)bh;
3470 h->non_elf = 0;
3471 h->def_regular = 1;
3472 h->type = STT_SECTION;
3473
3474 if (!bfd_elf_link_record_dynamic_symbol (info, h))
3475 return FALSE;
3476 }
3477
3478 return TRUE;
3479 }
3480
3481
3482 /* Finish up dynamic symbol handling. We set the contents of various
3483 dynamic sections here. */
3484 static bfd_boolean
3485 s3_bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd,
3486 struct bfd_link_info *info,
3487 struct elf_link_hash_entry *h,
3488 Elf_Internal_Sym *sym)
3489 {
3490 bfd *dynobj;
3491 asection *sgot;
3492 struct score_got_info *g;
3493 const char *name;
3494
3495 dynobj = elf_hash_table (info)->dynobj;
3496
3497 if (h->plt.offset != MINUS_ONE)
3498 {
3499 asection *s;
3500 bfd_byte stub[SCORE_FUNCTION_STUB_SIZE];
3501
3502 /* This symbol has a stub. Set it up. */
3503 BFD_ASSERT (h->dynindx != -1);
3504
3505 s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME);
3506 BFD_ASSERT (s != NULL);
3507
3508 /* FIXME: Can h->dynindex be more than 64K? */
3509 if (h->dynindx & 0xffff0000)
3510 return FALSE;
3511
3512 /* Fill the stub. */
3513 score_bfd_put_32 (output_bfd, STUB_LW, stub);
3514 score_bfd_put_32 (output_bfd, STUB_MOVE, stub + 4);
3515 score_bfd_put_32 (output_bfd, STUB_LI16 | (h->dynindx << 1), stub + 8);
3516 score_bfd_put_32 (output_bfd, STUB_BRL, stub + 12);
3517
3518 BFD_ASSERT (h->plt.offset <= s->size);
3519 memcpy (s->contents + h->plt.offset, stub, SCORE_FUNCTION_STUB_SIZE);
3520
3521 /* Mark the symbol as undefined. plt.offset != -1 occurs
3522 only for the referenced symbol. */
3523 sym->st_shndx = SHN_UNDEF;
3524
3525 /* The run-time linker uses the st_value field of the symbol
3526 to reset the global offset table entry for this external
3527 to its stub address when unlinking a shared object. */
3528 sym->st_value = (s->output_section->vma + s->output_offset + h->plt.offset);
3529 }
3530
3531 BFD_ASSERT (h->dynindx != -1 || h->forced_local);
3532
3533 sgot = score_elf_got_section (dynobj, FALSE);
3534 BFD_ASSERT (sgot != NULL);
3535 BFD_ASSERT (score_elf_section_data (sgot) != NULL);
3536 g = score_elf_section_data (sgot)->u.got_info;
3537 BFD_ASSERT (g != NULL);
3538
3539 /* Run through the global symbol table, creating GOT entries for all
3540 the symbols that need them. */
3541 if (g->global_gotsym != NULL && h->dynindx >= g->global_gotsym->dynindx)
3542 {
3543 bfd_vma offset;
3544 bfd_vma value;
3545
3546 value = sym->st_value;
3547 offset = score_elf_global_got_index (dynobj, h);
3548 score_bfd_put_32 (output_bfd, value, sgot->contents + offset);
3549 }
3550
3551 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3552 name = h->root.root.string;
3553 if (h == elf_hash_table (info)->hdynamic
3554 || h == elf_hash_table (info)->hgot)
3555 sym->st_shndx = SHN_ABS;
3556 else if (strcmp (name, "_DYNAMIC_LINK") == 0)
3557 {
3558 sym->st_shndx = SHN_ABS;
3559 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
3560 sym->st_value = 1;
3561 }
3562 else if (strcmp (name, GP_DISP_LABEL) == 0)
3563 {
3564 sym->st_shndx = SHN_ABS;
3565 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
3566 sym->st_value = elf_gp (output_bfd);
3567 }
3568
3569 return TRUE;
3570 }
3571
3572 /* Finish up the dynamic sections. */
3573 static bfd_boolean
3574 s3_bfd_score_elf_finish_dynamic_sections (bfd *output_bfd,
3575 struct bfd_link_info *info)
3576 {
3577 bfd *dynobj;
3578 asection *sdyn;
3579 asection *sgot;
3580 asection *s;
3581 struct score_got_info *g;
3582
3583 dynobj = elf_hash_table (info)->dynobj;
3584
3585 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3586
3587 sgot = score_elf_got_section (dynobj, FALSE);
3588 if (sgot == NULL)
3589 g = NULL;
3590 else
3591 {
3592 BFD_ASSERT (score_elf_section_data (sgot) != NULL);
3593 g = score_elf_section_data (sgot)->u.got_info;
3594 BFD_ASSERT (g != NULL);
3595 }
3596
3597 if (elf_hash_table (info)->dynamic_sections_created)
3598 {
3599 bfd_byte *b;
3600
3601 BFD_ASSERT (sdyn != NULL);
3602 BFD_ASSERT (g != NULL);
3603
3604 for (b = sdyn->contents;
3605 b < sdyn->contents + sdyn->size;
3606 b += SCORE_ELF_DYN_SIZE (dynobj))
3607 {
3608 Elf_Internal_Dyn dyn;
3609 const char *name;
3610 size_t elemsize;
3611 bfd_boolean swap_out_p;
3612
3613 /* Read in the current dynamic entry. */
3614 (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
3615
3616 /* Assume that we're going to modify it and write it out. */
3617 swap_out_p = TRUE;
3618
3619 switch (dyn.d_tag)
3620 {
3621 case DT_RELENT:
3622 dyn.d_un.d_val = SCORE_ELF_REL_SIZE (dynobj);
3623 break;
3624
3625 case DT_STRSZ:
3626 /* Rewrite DT_STRSZ. */
3627 dyn.d_un.d_val
3628 = _bfd_elf_strtab_size (elf_hash_table (info)->dynstr);
3629 break;
3630
3631 case DT_PLTGOT:
3632 s = elf_hash_table (info)->sgot;
3633 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3634 break;
3635
3636 case DT_SCORE_BASE_ADDRESS:
3637 s = output_bfd->sections;
3638 BFD_ASSERT (s != NULL);
3639 dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff;
3640 break;
3641
3642 case DT_SCORE_LOCAL_GOTNO:
3643 dyn.d_un.d_val = g->local_gotno;
3644 break;
3645
3646 case DT_SCORE_UNREFEXTNO:
3647 /* The index into the dynamic symbol table which is the
3648 entry of the first external symbol that is not
3649 referenced within the same object. */
3650 dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
3651 break;
3652
3653 case DT_SCORE_GOTSYM:
3654 if (g->global_gotsym)
3655 {
3656 dyn.d_un.d_val = g->global_gotsym->dynindx;
3657 break;
3658 }
3659 /* In case if we don't have global got symbols we default
3660 to setting DT_SCORE_GOTSYM to the same value as
3661 DT_SCORE_SYMTABNO. */
3662 /* Fall through. */
3663
3664 case DT_SCORE_SYMTABNO:
3665 name = ".dynsym";
3666 elemsize = SCORE_ELF_SYM_SIZE (output_bfd);
3667 s = bfd_get_linker_section (dynobj, name);
3668 dyn.d_un.d_val = s->size / elemsize;
3669 break;
3670
3671 case DT_SCORE_HIPAGENO:
3672 dyn.d_un.d_val = g->local_gotno - SCORE_RESERVED_GOTNO;
3673 break;
3674
3675 default:
3676 swap_out_p = FALSE;
3677 break;
3678 }
3679
3680 if (swap_out_p)
3681 (*get_elf_backend_data (dynobj)->s->swap_dyn_out) (dynobj, &dyn, b);
3682 }
3683 }
3684
3685 /* The first entry of the global offset table will be filled at
3686 runtime. The second entry will be used by some runtime loaders.
3687 This isn't the case of IRIX rld. */
3688 if (sgot != NULL && sgot->size > 0)
3689 {
3690 score_bfd_put_32 (output_bfd, 0, sgot->contents);
3691 score_bfd_put_32 (output_bfd, 0x80000000, sgot->contents + SCORE_ELF_GOT_SIZE (output_bfd));
3692 }
3693
3694 if (sgot != NULL)
3695 elf_section_data (sgot->output_section)->this_hdr.sh_entsize
3696 = SCORE_ELF_GOT_SIZE (output_bfd);
3697
3698
3699 /* We need to sort the entries of the dynamic relocation section. */
3700 s = score_elf_rel_dyn_section (dynobj, FALSE);
3701
3702 if (s != NULL && s->size > (bfd_vma)2 * SCORE_ELF_REL_SIZE (output_bfd))
3703 {
3704 reldyn_sorting_bfd = output_bfd;
3705 qsort ((Elf32_External_Rel *) s->contents + 1, s->reloc_count - 1,
3706 sizeof (Elf32_External_Rel), score_elf_sort_dynamic_relocs);
3707 }
3708
3709 return TRUE;
3710 }
3711
3712 /* This function set up the ELF section header for a BFD section in preparation for writing
3713 it out. This is where the flags and type fields are set for unusual sections. */
3714 static bfd_boolean
3715 s3_bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3716 Elf_Internal_Shdr *hdr,
3717 asection *sec)
3718 {
3719 const char *name;
3720
3721 name = bfd_get_section_name (abfd, sec);
3722
3723 if (strcmp (name, ".got") == 0
3724 || strcmp (name, ".srdata") == 0
3725 || strcmp (name, ".sdata") == 0
3726 || strcmp (name, ".sbss") == 0)
3727 hdr->sh_flags |= SHF_SCORE_GPREL;
3728
3729 return TRUE;
3730 }
3731
3732 /* This function do additional processing on the ELF section header before writing
3733 it out. This is used to set the flags and type fields for some sections. */
3734
3735 /* assign_file_positions_except_relocs() check section flag and if it is allocatable,
3736 warning message will be issued. backend_fake_section is called before
3737 assign_file_positions_except_relocs(); backend_section_processing after it. so, we
3738 modify section flag there, but not backend_fake_section. */
3739 static bfd_boolean
3740 s3_bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr)
3741 {
3742 if (hdr->bfd_section != NULL)
3743 {
3744 const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
3745
3746 if (strcmp (name, ".sdata") == 0)
3747 {
3748 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL;
3749 hdr->sh_type = SHT_PROGBITS;
3750 }
3751 else if (strcmp (name, ".sbss") == 0)
3752 {
3753 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL;
3754 hdr->sh_type = SHT_NOBITS;
3755 }
3756 else if (strcmp (name, ".srdata") == 0)
3757 {
3758 hdr->sh_flags |= SHF_ALLOC | SHF_SCORE_GPREL;
3759 hdr->sh_type = SHT_PROGBITS;
3760 }
3761 }
3762
3763 return TRUE;
3764 }
3765
3766 static bfd_boolean
3767 s3_bfd_score_elf_write_section (bfd *output_bfd, asection *sec, bfd_byte *contents)
3768 {
3769 bfd_byte *to, *from, *end;
3770 int i;
3771
3772 if (strcmp (sec->name, ".pdr") != 0)
3773 return FALSE;
3774
3775 if (score_elf_section_data (sec)->u.tdata == NULL)
3776 return FALSE;
3777
3778 to = contents;
3779 end = contents + sec->size;
3780 for (from = contents, i = 0; from < end; from += PDR_SIZE, i++)
3781 {
3782 if ((score_elf_section_data (sec)->u.tdata)[i] == 1)
3783 continue;
3784
3785 if (to != from)
3786 memcpy (to, from, PDR_SIZE);
3787
3788 to += PDR_SIZE;
3789 }
3790 bfd_set_section_contents (output_bfd, sec->output_section, contents,
3791 (file_ptr) sec->output_offset, sec->size);
3792
3793 return TRUE;
3794 }
3795
3796 /* Copy data from a SCORE ELF indirect symbol to its direct symbol, hiding the old
3797 indirect symbol. Process additional relocation information. */
3798 static void
3799 s3_bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info,
3800 struct elf_link_hash_entry *dir,
3801 struct elf_link_hash_entry *ind)
3802 {
3803 struct score_elf_link_hash_entry *dirscore, *indscore;
3804
3805 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3806
3807 if (ind->root.type != bfd_link_hash_indirect)
3808 return;
3809
3810 dirscore = (struct score_elf_link_hash_entry *) dir;
3811 indscore = (struct score_elf_link_hash_entry *) ind;
3812 dirscore->possibly_dynamic_relocs += indscore->possibly_dynamic_relocs;
3813
3814 if (indscore->readonly_reloc)
3815 dirscore->readonly_reloc = TRUE;
3816
3817 if (indscore->no_fn_stub)
3818 dirscore->no_fn_stub = TRUE;
3819 }
3820
3821 /* Remove information about discarded functions from other sections which mention them. */
3822 static bfd_boolean
3823 s3_bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie,
3824 struct bfd_link_info *info)
3825 {
3826 asection *o;
3827 bfd_boolean ret = FALSE;
3828 unsigned char *tdata;
3829 size_t i, skip;
3830
3831 o = bfd_get_section_by_name (abfd, ".pdr");
3832 if ((!o) || (o->size == 0) || (o->size % PDR_SIZE != 0)
3833 || (o->output_section != NULL && bfd_is_abs_section (o->output_section)))
3834 return FALSE;
3835
3836 tdata = bfd_zmalloc (o->size / PDR_SIZE);
3837 if (!tdata)
3838 return FALSE;
3839
3840 cookie->rels = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, info->keep_memory);
3841 if (!cookie->rels)
3842 {
3843 free (tdata);
3844 return FALSE;
3845 }
3846
3847 cookie->rel = cookie->rels;
3848 cookie->relend = cookie->rels + o->reloc_count;
3849
3850 for (i = 0, skip = 0; i < o->size; i++)
3851 {
3852 if (bfd_elf_reloc_symbol_deleted_p (i * PDR_SIZE, cookie))
3853 {
3854 tdata[i] = 1;
3855 skip++;
3856 }
3857 }
3858
3859 if (skip != 0)
3860 {
3861 score_elf_section_data (o)->u.tdata = tdata;
3862 o->size -= skip * PDR_SIZE;
3863 ret = TRUE;
3864 }
3865 else
3866 free (tdata);
3867
3868 if (!info->keep_memory)
3869 free (cookie->rels);
3870
3871 return ret;
3872 }
3873
3874 /* Signal that discard_info() has removed the discarded relocations for this section. */
3875 static bfd_boolean
3876 s3_bfd_score_elf_ignore_discarded_relocs (asection *sec)
3877 {
3878 if (strcmp (sec->name, ".pdr") == 0)
3879 return TRUE;
3880 return FALSE;
3881 }
3882
3883 /* Return the section that should be marked against GC for a given
3884 relocation. */
3885 static asection *
3886 s3_bfd_score_elf_gc_mark_hook (asection *sec,
3887 struct bfd_link_info *info,
3888 Elf_Internal_Rela *rel,
3889 struct elf_link_hash_entry *h,
3890 Elf_Internal_Sym *sym)
3891 {
3892 if (h != NULL)
3893 switch (ELF32_R_TYPE (rel->r_info))
3894 {
3895 case R_SCORE_GNU_VTINHERIT:
3896 case R_SCORE_GNU_VTENTRY:
3897 return NULL;
3898 }
3899
3900 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3901 }
3902
3903 /* Support for core dump NOTE sections. */
3904
3905 static bfd_boolean
3906 s3_bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
3907 {
3908 int offset;
3909 unsigned int raw_size;
3910
3911 switch (note->descsz)
3912 {
3913 default:
3914 return FALSE;
3915
3916 case 148: /* Linux/Score 32-bit. */
3917 /* pr_cursig */
3918 elf_tdata (abfd)->core->signal
3919 = score_bfd_get_16 (abfd, note->descdata + 12);
3920
3921 /* pr_pid */
3922 elf_tdata (abfd)->core->lwpid
3923 = score_bfd_get_32 (abfd, note->descdata + 24);
3924
3925 /* pr_reg */
3926 offset = 72;
3927 raw_size = 72;
3928
3929 break;
3930 }
3931
3932 /* Make a ".reg/999" section. */
3933 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
3934 note->descpos + offset);
3935 }
3936
3937 static bfd_boolean
3938 s3_bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
3939 {
3940 switch (note->descsz)
3941 {
3942 default:
3943 return FALSE;
3944
3945 case 124: /* Linux/Score elf_prpsinfo. */
3946 elf_tdata (abfd)->core->program
3947 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
3948 elf_tdata (abfd)->core->command
3949 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
3950 }
3951
3952 /* Note that for some reason, a spurious space is tacked
3953 onto the end of the args in some (at least one anyway)
3954 implementations, so strip it off if it exists. */
3955
3956 {
3957 char *command = elf_tdata (abfd)->core->command;
3958 int n = strlen (command);
3959
3960 if (0 < n && command[n - 1] == ' ')
3961 command[n - 1] = '\0';
3962 }
3963
3964 return TRUE;
3965 }
3966
3967
3968 /* Score BFD functions. */
3969 static reloc_howto_type *
3970 s3_elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code)
3971 {
3972 unsigned int i;
3973
3974 for (i = 0; i < ARRAY_SIZE (elf32_score_reloc_map); i++)
3975 if (elf32_score_reloc_map[i].bfd_reloc_val == code)
3976 return &elf32_score_howto_table[elf32_score_reloc_map[i].elf_reloc_val];
3977
3978 return NULL;
3979 }
3980
3981 static reloc_howto_type *
3982 elf32_score_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
3983 const char *r_name)
3984 {
3985 unsigned int i;
3986
3987 for (i = 0;
3988 i < (sizeof (elf32_score_howto_table)
3989 / sizeof (elf32_score_howto_table[0]));
3990 i++)
3991 if (elf32_score_howto_table[i].name != NULL
3992 && strcasecmp (elf32_score_howto_table[i].name, r_name) == 0)
3993 return &elf32_score_howto_table[i];
3994
3995 return NULL;
3996 }
3997
3998 static bfd_boolean
3999 s3_elf32_score_print_private_bfd_data (bfd *abfd, void * ptr)
4000 {
4001 FILE *file = (FILE *) ptr;
4002
4003 BFD_ASSERT (abfd != NULL && ptr != NULL);
4004
4005 /* Print normal ELF private data. */
4006 _bfd_elf_print_private_bfd_data (abfd, ptr);
4007
4008 /* xgettext:c-format */
4009 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
4010 if (elf_elfheader (abfd)->e_flags & EF_SCORE_PIC)
4011 {
4012 fprintf (file, _(" [pic]"));
4013 }
4014 if (elf_elfheader (abfd)->e_flags & EF_SCORE_FIXDEP)
4015 {
4016 fprintf (file, _(" [fix dep]"));
4017 }
4018 fputc ('\n', file);
4019
4020 return TRUE;
4021 }
4022
4023 static bfd_boolean
4024 s3_elf32_score_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4025 {
4026 bfd *obfd = info->output_bfd;
4027 flagword in_flags;
4028 flagword out_flags;
4029
4030 if (!_bfd_generic_verify_endian_match (ibfd, info))
4031 return FALSE;
4032
4033 in_flags = elf_elfheader (ibfd)->e_flags;
4034 out_flags = elf_elfheader (obfd)->e_flags;
4035
4036 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4037 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4038 return TRUE;
4039
4040 in_flags = elf_elfheader (ibfd)->e_flags;
4041 out_flags = elf_elfheader (obfd)->e_flags;
4042
4043 if (! elf_flags_init (obfd))
4044 {
4045 elf_flags_init (obfd) = TRUE;
4046 elf_elfheader (obfd)->e_flags = in_flags;
4047
4048 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4049 && bfd_get_arch_info (obfd)->the_default)
4050 {
4051 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
4052 }
4053
4054 return TRUE;
4055 }
4056
4057 if (((in_flags & EF_SCORE_PIC) != 0) != ((out_flags & EF_SCORE_PIC) != 0))
4058 _bfd_error_handler
4059 (_("%B: warning: linking PIC files with non-PIC files"), ibfd);
4060
4061 /* FIXME: Maybe dependency fix compatibility should be checked here. */
4062
4063 return TRUE;
4064 }
4065
4066 static bfd_boolean
4067 s3_elf32_score_new_section_hook (bfd *abfd, asection *sec)
4068 {
4069 struct _score_elf_section_data *sdata;
4070 bfd_size_type amt = sizeof (*sdata);
4071
4072 sdata = bfd_zalloc (abfd, amt);
4073 if (sdata == NULL)
4074 return FALSE;
4075 sec->used_by_bfd = sdata;
4076
4077 return _bfd_elf_new_section_hook (abfd, sec);
4078 }
4079
4080 /*****************************************************************************/
4081
4082 /* s3_s7: backend hooks. */
4083 static void
4084 _bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
4085 arelent *bfd_reloc,
4086 Elf_Internal_Rela *elf_reloc)
4087 {
4088 if (bfd_get_mach (abfd) == bfd_mach_score3)
4089 return s3_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc);
4090 else
4091 return s7_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc);
4092 }
4093
4094 static bfd_boolean
4095 _bfd_score_elf_relocate_section (bfd *output_bfd,
4096 struct bfd_link_info *info,
4097 bfd *input_bfd,
4098 asection *input_section,
4099 bfd_byte *contents,
4100 Elf_Internal_Rela *relocs,
4101 Elf_Internal_Sym *local_syms,
4102 asection **local_sections)
4103 {
4104 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4105 return s3_bfd_score_elf_relocate_section (output_bfd,
4106 info, input_bfd, input_section, contents, relocs,
4107 local_syms, local_sections);
4108 else
4109 return s7_bfd_score_elf_relocate_section (output_bfd,
4110 info, input_bfd, input_section, contents, relocs,
4111 local_syms, local_sections);
4112 }
4113
4114 static bfd_boolean
4115 _bfd_score_elf_check_relocs (bfd *abfd,
4116 struct bfd_link_info *info,
4117 asection *sec,
4118 const Elf_Internal_Rela *relocs)
4119 {
4120 if (bfd_get_mach (abfd) == bfd_mach_score3)
4121 return s3_bfd_score_elf_check_relocs (abfd, info, sec, relocs);
4122 else
4123 return s7_bfd_score_elf_check_relocs (abfd, info, sec, relocs);
4124 }
4125
4126 static bfd_boolean
4127 _bfd_score_elf_add_symbol_hook (bfd *abfd,
4128 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4129 Elf_Internal_Sym *sym,
4130 const char **namep ATTRIBUTE_UNUSED,
4131 flagword *flagsp ATTRIBUTE_UNUSED,
4132 asection **secp,
4133 bfd_vma *valp)
4134 {
4135 if (bfd_get_mach (abfd) == bfd_mach_score3)
4136 return s3_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp,
4137 secp, valp);
4138 else
4139 return s7_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp,
4140 secp, valp);
4141 }
4142
4143 static void
4144 _bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym)
4145 {
4146 if (bfd_get_mach (abfd) == bfd_mach_score3)
4147 return s3_bfd_score_elf_symbol_processing (abfd, asym);
4148 else
4149 return s7_bfd_score_elf_symbol_processing (abfd, asym);
4150 }
4151
4152 static int
4153 _bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
4154 const char *name ATTRIBUTE_UNUSED,
4155 Elf_Internal_Sym *sym,
4156 asection *input_sec,
4157 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
4158 {
4159 /* If link a empty .o, then this filed is NULL. */
4160 if (info->input_bfds == NULL)
4161 {
4162 /* If we see a common symbol, which implies a relocatable link, then
4163 if a symbol was small common in an input file, mark it as small
4164 common in the output file. */
4165 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
4166 sym->st_shndx = SHN_SCORE_SCOMMON;
4167 return 1;
4168 }
4169
4170 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4171 return s3_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h);
4172 else
4173 return s7_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h);
4174 }
4175
4176 static bfd_boolean
4177 _bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
4178 asection *sec,
4179 int *retval)
4180 {
4181 if (bfd_get_mach (abfd) == bfd_mach_score3)
4182 return s3_bfd_score_elf_section_from_bfd_section (abfd, sec, retval);
4183 else
4184 return s7_bfd_score_elf_section_from_bfd_section (abfd, sec, retval);
4185 }
4186
4187 static bfd_boolean
4188 _bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4189 struct elf_link_hash_entry *h)
4190 {
4191 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4192 return s3_bfd_score_elf_adjust_dynamic_symbol (info, h);
4193 else
4194 return s7_bfd_score_elf_adjust_dynamic_symbol (info, h);
4195 }
4196
4197 static bfd_boolean
4198 _bfd_score_elf_always_size_sections (bfd *output_bfd,
4199 struct bfd_link_info *info)
4200 {
4201 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4202 return s3_bfd_score_elf_always_size_sections (output_bfd, info);
4203 else
4204 return s7_bfd_score_elf_always_size_sections (output_bfd, info);
4205 }
4206
4207 static bfd_boolean
4208 _bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4209 {
4210 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4211 return s3_bfd_score_elf_size_dynamic_sections (output_bfd, info);
4212 else
4213 return s7_bfd_score_elf_size_dynamic_sections (output_bfd, info);
4214 }
4215
4216 static bfd_boolean
4217 _bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4218 {
4219 if (bfd_get_mach (abfd) == bfd_mach_score3)
4220 return s3_bfd_score_elf_create_dynamic_sections (abfd, info);
4221 else
4222 return s7_bfd_score_elf_create_dynamic_sections (abfd, info);
4223 }
4224
4225 static bfd_boolean
4226 _bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd,
4227 struct bfd_link_info *info,
4228 struct elf_link_hash_entry *h,
4229 Elf_Internal_Sym *sym)
4230 {
4231 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4232 return s3_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym);
4233 else
4234 return s7_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym);
4235 }
4236
4237 static bfd_boolean
4238 _bfd_score_elf_finish_dynamic_sections (bfd *output_bfd,
4239 struct bfd_link_info *info)
4240 {
4241 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4242 return s3_bfd_score_elf_finish_dynamic_sections (output_bfd, info);
4243 else
4244 return s7_bfd_score_elf_finish_dynamic_sections (output_bfd, info);
4245 }
4246
4247 static bfd_boolean
4248 _bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
4249 Elf_Internal_Shdr *hdr,
4250 asection *sec)
4251 {
4252 if (bfd_get_mach (abfd) == bfd_mach_score3)
4253 return s3_bfd_score_elf_fake_sections (abfd, hdr, sec);
4254 else
4255 return s7_bfd_score_elf_fake_sections (abfd, hdr, sec);
4256 }
4257
4258 static bfd_boolean
4259 _bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr)
4260 {
4261 if (bfd_get_mach (abfd) == bfd_mach_score3)
4262 return s3_bfd_score_elf_section_processing (abfd, hdr);
4263 else
4264 return s7_bfd_score_elf_section_processing (abfd, hdr);
4265 }
4266
4267 static bfd_boolean
4268 _bfd_score_elf_write_section (bfd *output_bfd,
4269 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4270 asection *sec, bfd_byte *contents)
4271 {
4272 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4273 return s3_bfd_score_elf_write_section (output_bfd, sec, contents);
4274 else
4275 return s7_bfd_score_elf_write_section (output_bfd, sec, contents);
4276 }
4277
4278 static void
4279 _bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info,
4280 struct elf_link_hash_entry *dir,
4281 struct elf_link_hash_entry *ind)
4282 {
4283 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4284 return s3_bfd_score_elf_copy_indirect_symbol (info, dir, ind);
4285 else
4286 return s7_bfd_score_elf_copy_indirect_symbol (info, dir, ind);
4287 }
4288
4289 static void
4290 _bfd_score_elf_hide_symbol (struct bfd_link_info *info,
4291 struct elf_link_hash_entry *entry,
4292 bfd_boolean force_local)
4293 {
4294 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4295 return s3_bfd_score_elf_hide_symbol (info, entry, force_local);
4296 else
4297 return s7_bfd_score_elf_hide_symbol (info, entry, force_local);
4298 }
4299
4300 static bfd_boolean
4301 _bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie,
4302 struct bfd_link_info *info)
4303 {
4304 if (bfd_get_mach (abfd) == bfd_mach_score3)
4305 return s3_bfd_score_elf_discard_info (abfd, cookie, info);
4306 else
4307 return s7_bfd_score_elf_discard_info (abfd, cookie, info);
4308 }
4309
4310 static bfd_boolean
4311 _bfd_score_elf_ignore_discarded_relocs (asection *sec)
4312 {
4313 if (bfd_get_mach (sec->owner) == bfd_mach_score3)
4314 return s3_bfd_score_elf_ignore_discarded_relocs (sec);
4315 else
4316 return s7_bfd_score_elf_ignore_discarded_relocs (sec);
4317 }
4318
4319 static asection *
4320 _bfd_score_elf_gc_mark_hook (asection *sec,
4321 struct bfd_link_info *info,
4322 Elf_Internal_Rela *rel,
4323 struct elf_link_hash_entry *h,
4324 Elf_Internal_Sym *sym)
4325 {
4326 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4327 return s3_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym);
4328 else
4329 return s7_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym);
4330 }
4331
4332 static bfd_boolean
4333 _bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
4334 {
4335 if (bfd_get_mach (abfd) == bfd_mach_score3)
4336 return s3_bfd_score_elf_grok_prstatus (abfd, note);
4337 else
4338 return s7_bfd_score_elf_grok_prstatus (abfd, note);
4339 }
4340
4341 static bfd_boolean
4342 _bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
4343 {
4344 if (bfd_get_mach (abfd) == bfd_mach_score3)
4345 return s3_bfd_score_elf_grok_psinfo (abfd, note);
4346 else
4347 return s7_bfd_score_elf_grok_psinfo (abfd, note);
4348 }
4349
4350 static reloc_howto_type *
4351 elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code)
4352 {
4353 /* s3: NOTE!!!
4354 gas will call elf32_score_reloc_type_lookup, and don't write elf file.
4355 So just using score3, but we don't know ld will call this or not.
4356 If so, this way can't work. */
4357
4358 if (score3)
4359 return s3_elf32_score_reloc_type_lookup (abfd, code);
4360 else
4361 return s7_elf32_score_reloc_type_lookup (abfd, code);
4362 }
4363
4364 /* Create a score elf linker hash table.
4365 This is a copy of _bfd_elf_link_hash_table_create() except with a
4366 different hash table entry creation function. */
4367
4368 static struct bfd_link_hash_table *
4369 elf32_score_link_hash_table_create (bfd *abfd)
4370 {
4371 struct elf_link_hash_table *ret;
4372 bfd_size_type amt = sizeof (struct elf_link_hash_table);
4373
4374 ret = (struct elf_link_hash_table *) bfd_zmalloc (amt);
4375 if (ret == NULL)
4376 return NULL;
4377
4378 if (!_bfd_elf_link_hash_table_init (ret, abfd, score_elf_link_hash_newfunc,
4379 sizeof (struct score_elf_link_hash_entry),
4380 GENERIC_ELF_DATA))
4381 {
4382 free (ret);
4383 return NULL;
4384 }
4385
4386 return &ret->root;
4387 }
4388
4389 static bfd_boolean
4390 elf32_score_print_private_bfd_data (bfd *abfd, void * ptr)
4391 {
4392 if (bfd_get_mach (abfd) == bfd_mach_score3)
4393 return s3_elf32_score_print_private_bfd_data (abfd, ptr);
4394 else
4395 return s7_elf32_score_print_private_bfd_data (abfd, ptr);
4396 }
4397
4398 static bfd_boolean
4399 elf32_score_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4400 {
4401 if (bfd_get_mach (info->output_bfd) == bfd_mach_score3)
4402 return s3_elf32_score_merge_private_bfd_data (ibfd, info);
4403 else
4404 return s7_elf32_score_merge_private_bfd_data (ibfd, info);
4405 }
4406
4407 static bfd_boolean
4408 elf32_score_new_section_hook (bfd *abfd, asection *sec)
4409 {
4410 if (bfd_get_mach (abfd) == bfd_mach_score3)
4411 return s3_elf32_score_new_section_hook (abfd, sec);
4412 else
4413 return s7_elf32_score_new_section_hook (abfd, sec);
4414 }
4415
4416
4417 /* s3_s7: don't need to split. */
4418
4419 /* Set the right machine number. */
4420 static bfd_boolean
4421 _bfd_score_elf_score_object_p (bfd * abfd)
4422 {
4423 int e_set = bfd_mach_score7;
4424
4425 if (elf_elfheader (abfd)->e_machine == EM_SCORE)
4426 {
4427 int e_mach = elf_elfheader (abfd)->e_flags & EF_SCORE_MACH & EF_OMIT_PIC_FIXDD;
4428 switch (e_mach)
4429 {
4430 /* Set default target is score7. */
4431 default:
4432 case E_SCORE_MACH_SCORE7:
4433 e_set = bfd_mach_score7;
4434 break;
4435
4436 case E_SCORE_MACH_SCORE3:
4437 e_set = bfd_mach_score3;
4438 break;
4439 }
4440 }
4441
4442 return bfd_default_set_arch_mach (abfd, bfd_arch_score, e_set);
4443 }
4444
4445 bfd_boolean
4446 _bfd_score_elf_common_definition (Elf_Internal_Sym *sym)
4447 {
4448 return (sym->st_shndx == SHN_COMMON || sym->st_shndx == SHN_SCORE_SCOMMON);
4449 }
4450
4451 /*****************************************************************************/
4452
4453
4454 #define USE_REL 1
4455 #define TARGET_LITTLE_SYM score_elf32_le_vec
4456 #define TARGET_LITTLE_NAME "elf32-littlescore"
4457 #define TARGET_BIG_SYM score_elf32_be_vec
4458 #define TARGET_BIG_NAME "elf32-bigscore"
4459 #define ELF_ARCH bfd_arch_score
4460 #define ELF_MACHINE_CODE EM_SCORE
4461 #define ELF_MACHINE_ALT1 EM_SCORE_OLD
4462 #define ELF_MAXPAGESIZE 0x8000
4463
4464 #define elf_info_to_howto 0
4465 #define elf_info_to_howto_rel _bfd_score_info_to_howto
4466 #define elf_backend_relocate_section _bfd_score_elf_relocate_section
4467 #define elf_backend_check_relocs _bfd_score_elf_check_relocs
4468 #define elf_backend_add_symbol_hook _bfd_score_elf_add_symbol_hook
4469 #define elf_backend_symbol_processing _bfd_score_elf_symbol_processing
4470 #define elf_backend_link_output_symbol_hook \
4471 _bfd_score_elf_link_output_symbol_hook
4472 #define elf_backend_section_from_bfd_section \
4473 _bfd_score_elf_section_from_bfd_section
4474 #define elf_backend_adjust_dynamic_symbol \
4475 _bfd_score_elf_adjust_dynamic_symbol
4476 #define elf_backend_always_size_sections \
4477 _bfd_score_elf_always_size_sections
4478 #define elf_backend_size_dynamic_sections \
4479 _bfd_score_elf_size_dynamic_sections
4480 #define elf_backend_omit_section_dynsym \
4481 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4482 #define elf_backend_create_dynamic_sections \
4483 _bfd_score_elf_create_dynamic_sections
4484 #define elf_backend_finish_dynamic_symbol \
4485 _bfd_score_elf_finish_dynamic_symbol
4486 #define elf_backend_finish_dynamic_sections \
4487 _bfd_score_elf_finish_dynamic_sections
4488 #define elf_backend_fake_sections _bfd_score_elf_fake_sections
4489 #define elf_backend_section_processing _bfd_score_elf_section_processing
4490 #define elf_backend_write_section _bfd_score_elf_write_section
4491 #define elf_backend_copy_indirect_symbol _bfd_score_elf_copy_indirect_symbol
4492 #define elf_backend_hide_symbol _bfd_score_elf_hide_symbol
4493 #define elf_backend_discard_info _bfd_score_elf_discard_info
4494 #define elf_backend_ignore_discarded_relocs \
4495 _bfd_score_elf_ignore_discarded_relocs
4496 #define elf_backend_gc_mark_hook _bfd_score_elf_gc_mark_hook
4497 #define elf_backend_grok_prstatus _bfd_score_elf_grok_prstatus
4498 #define elf_backend_grok_psinfo _bfd_score_elf_grok_psinfo
4499 #define elf_backend_can_gc_sections 1
4500 #define elf_backend_want_plt_sym 0
4501 #define elf_backend_got_header_size (4 * SCORE_RESERVED_GOTNO)
4502 #define elf_backend_plt_header_size 0
4503 #define elf_backend_collect TRUE
4504 #define elf_backend_type_change_ok TRUE
4505 #define elf_backend_object_p _bfd_score_elf_score_object_p
4506
4507 #define bfd_elf32_bfd_reloc_type_lookup elf32_score_reloc_type_lookup
4508 #define bfd_elf32_bfd_reloc_name_lookup \
4509 elf32_score_reloc_name_lookup
4510 #define bfd_elf32_bfd_link_hash_table_create elf32_score_link_hash_table_create
4511 #define bfd_elf32_bfd_print_private_bfd_data elf32_score_print_private_bfd_data
4512 #define bfd_elf32_bfd_merge_private_bfd_data elf32_score_merge_private_bfd_data
4513 #define bfd_elf32_new_section_hook elf32_score_new_section_hook
4514
4515 #include "elf32-target.h"