* po/ja.po: New Japanese translation.
[binutils.git] / bfd / elf32-score.c
blobb4376242c94e648ef9f9ed26e5adfe6822bfe067
1 /* 32-bit ELF support for S+core.
2 Copyright 2006, 2007, 2008, 2009, 2010, 2011
3 Free Software Foundation, Inc.
4 Contributed by
5 Brain.lin (brain.lin@sunplusct.com)
6 Mei Ligang (ligang@sunnorth.com.cn)
7 Pei-Lin Tsai (pltsai@sunplus.com)
9 This file is part of BFD, the Binary File Descriptor library.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
24 MA 02110-1301, USA. */
26 #include "sysdep.h"
27 #include "bfd.h"
28 #include "libbfd.h"
29 #include "libiberty.h"
30 #include "elf-bfd.h"
31 #include "elf/score.h"
32 #include "elf/common.h"
33 #include "elf/internal.h"
34 #include "hashtab.h"
35 #include "elf32-score.h"
38 int score3 = 0;
39 int score7 = 1;
41 /* The SCORE ELF linker needs additional information for each symbol in
42 the global hash table. */
43 struct score_elf_link_hash_entry
45 struct elf_link_hash_entry root;
47 /* Number of R_SCORE_ABS32, R_SCORE_REL32 relocs against this symbol. */
48 unsigned int possibly_dynamic_relocs;
50 /* If the R_SCORE_ABS32, R_SCORE_REL32 reloc is against a readonly section. */
51 bfd_boolean readonly_reloc;
53 /* We must not create a stub for a symbol that has relocations related to
54 taking the function's address, i.e. any but R_SCORE_CALL15 ones. */
55 bfd_boolean no_fn_stub;
57 /* Are we forced local? This will only be set if we have converted
58 the initial global GOT entry to a local GOT entry. */
59 bfd_boolean forced_local;
62 /* Traverse a score ELF linker hash table. */
63 #define score_elf_link_hash_traverse(table, func, info) \
64 (elf_link_hash_traverse \
65 ((table), \
66 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
67 (info)))
69 /* This structure is used to hold .got entries while estimating got sizes. */
70 struct score_got_entry
72 /* The input bfd in which the symbol is defined. */
73 bfd *abfd;
74 /* The index of the symbol, as stored in the relocation r_info, if
75 we have a local symbol; -1 otherwise. */
76 long symndx;
77 union
79 /* If abfd == NULL, an address that must be stored in the got. */
80 bfd_vma address;
81 /* If abfd != NULL && symndx != -1, the addend of the relocation
82 that should be added to the symbol value. */
83 bfd_vma addend;
84 /* If abfd != NULL && symndx == -1, the hash table entry
85 corresponding to a global symbol in the got (or, local, if
86 h->forced_local). */
87 struct score_elf_link_hash_entry *h;
88 } d;
90 /* The offset from the beginning of the .got section to the entry
91 corresponding to this symbol+addend. If it's a global symbol
92 whose offset is yet to be decided, it's going to be -1. */
93 long gotidx;
96 /* This structure is passed to score_elf_sort_hash_table_f when sorting
97 the dynamic symbols. */
99 struct score_elf_hash_sort_data
101 /* The symbol in the global GOT with the lowest dynamic symbol table index. */
102 struct elf_link_hash_entry *low;
103 /* The least dynamic symbol table index corresponding to a symbol with a GOT entry. */
104 long min_got_dynindx;
105 /* The greatest dynamic symbol table index corresponding to a symbol
106 with a GOT entry that is not referenced (e.g., a dynamic symbol
107 with dynamic relocations pointing to it from non-primary GOTs). */
108 long max_unref_got_dynindx;
109 /* The greatest dynamic symbol table index not corresponding to a
110 symbol without a GOT entry. */
111 long max_non_got_dynindx;
114 struct score_got_info
116 /* The global symbol in the GOT with the lowest index in the dynamic
117 symbol table. */
118 struct elf_link_hash_entry *global_gotsym;
119 /* The number of global .got entries. */
120 unsigned int global_gotno;
121 /* The number of local .got entries. */
122 unsigned int local_gotno;
123 /* The number of local .got entries we have used. */
124 unsigned int assigned_gotno;
125 /* A hash table holding members of the got. */
126 struct htab *got_entries;
127 /* In multi-got links, a pointer to the next got (err, rather, most
128 of the time, it points to the previous got). */
129 struct score_got_info *next;
132 /* A structure used to count GOT entries, for GOT entry or ELF symbol table traversal. */
133 struct _score_elf_section_data
135 struct bfd_elf_section_data elf;
136 union
138 struct score_got_info *got_info;
139 bfd_byte *tdata;
144 #define score_elf_section_data(sec) \
145 ((struct _score_elf_section_data *) elf_section_data (sec))
147 /* The size of a symbol-table entry. */
148 #define SCORE_ELF_SYM_SIZE(abfd) \
149 (get_elf_backend_data (abfd)->s->sizeof_sym)
151 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
152 from smaller values. Start with zero, widen, *then* decrement. */
153 #define MINUS_ONE (((bfd_vma)0) - 1)
154 #define MINUS_TWO (((bfd_vma)0) - 2)
156 #define PDR_SIZE 32
159 /* The number of local .got entries we reserve. */
160 #define SCORE_RESERVED_GOTNO (2)
161 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
163 /* The offset of $gp from the beginning of the .got section. */
164 #define ELF_SCORE_GP_OFFSET(abfd) (0x3ff0)
165 /* The maximum size of the GOT for it to be addressable using 15-bit offsets from $gp. */
166 #define SCORE_ELF_GOT_MAX_SIZE(abfd) (ELF_SCORE_GP_OFFSET(abfd) + 0x3fff)
168 #define SCORE_ELF_STUB_SECTION_NAME (".SCORE.stub")
169 #define SCORE_FUNCTION_STUB_SIZE (16)
171 #define STUB_LW 0xc3bcc010 /* lw r29, [r28, -0x3ff0] */
172 #define STUB_MOVE 0x8363bc56 /* mv r27, r3 */
173 #define STUB_LI16 0x87548000 /* ori r26, .dynsym_index */
174 #define STUB_BRL 0x801dbc09 /* brl r29 */
176 #define SCORE_ELF_GOT_SIZE(abfd) \
177 (get_elf_backend_data (abfd)->s->arch_size / 8)
179 #define SCORE_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
180 (_bfd_elf_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val))
182 /* The size of an external dynamic table entry. */
183 #define SCORE_ELF_DYN_SIZE(abfd) \
184 (get_elf_backend_data (abfd)->s->sizeof_dyn)
186 /* The size of an external REL relocation. */
187 #define SCORE_ELF_REL_SIZE(abfd) \
188 (get_elf_backend_data (abfd)->s->sizeof_rel)
190 /* The default alignment for sections, as a power of two. */
191 #define SCORE_ELF_LOG_FILE_ALIGN(abfd)\
192 (get_elf_backend_data (abfd)->s->log_file_align)
194 static bfd_byte *hi16_rel_addr;
196 /* This will be used when we sort the dynamic relocation records. */
197 static bfd *reldyn_sorting_bfd;
199 /* SCORE ELF uses two common sections. One is the usual one, and the
200 other is for small objects. All the small objects are kept
201 together, and then referenced via the gp pointer, which yields
202 faster assembler code. This is what we use for the small common
203 section. This approach is copied from ecoff.c. */
204 static asection score_elf_scom_section;
205 static asymbol score_elf_scom_symbol;
206 static asymbol *score_elf_scom_symbol_ptr;
208 static bfd_vma
209 score_bfd_get_16 (bfd *abfd, const void *data)
211 return bfd_get_16 (abfd, data);
214 static bfd_vma
215 score3_bfd_getl32 (const void *p)
217 const bfd_byte *addr = p;
218 unsigned long v;
220 v = (unsigned long) addr[2];
221 v |= (unsigned long) addr[3] << 8;
222 v |= (unsigned long) addr[0] << 16;
223 v |= (unsigned long) addr[1] << 24;
224 return v;
227 static bfd_vma
228 score3_bfd_getl48 (const void *p)
230 const bfd_byte *addr = p;
231 unsigned long long v;
233 v = (unsigned long long) addr[4];
234 v |= (unsigned long long) addr[5] << 8;
235 v |= (unsigned long long) addr[2] << 16;
236 v |= (unsigned long long) addr[3] << 24;
237 v |= (unsigned long long) addr[0] << 32;
238 v |= (unsigned long long) addr[1] << 40;
239 return v;
242 static bfd_vma
243 score_bfd_get_32 (bfd *abfd, const void *data)
245 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
246 return score3_bfd_getl32 (data);
247 else
248 return bfd_get_32 (abfd, data);
251 static bfd_vma
252 score_bfd_get_48 (bfd *abfd, const void *p)
254 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
255 return score3_bfd_getl48 (p);
256 else
257 return bfd_get_bits (p, 48, 1);
260 static void
261 score_bfd_put_16 (bfd *abfd, bfd_vma addr, void *data)
263 return bfd_put_16 (abfd, addr, data);
266 static void
267 score3_bfd_putl32 (bfd_vma data, void *p)
269 bfd_byte *addr = p;
270 addr[0] = (data >> 16) & 0xff;
271 addr[1] = (data >> 24) & 0xff;
272 addr[2] = data & 0xff;
273 addr[3] = (data >> 8) & 0xff;
276 static void
277 score3_bfd_putl48 (bfd_vma data, void *p)
279 bfd_byte *addr = p;
280 addr[0] = (data >> 32) & 0xff;
281 addr[1] = (data >> 40) & 0xff;
282 addr[2] = (data >> 16) & 0xff;
283 addr[3] = (data >> 24) & 0xff;
284 addr[4] = data & 0xff;
285 addr[5] = (data >> 8) & 0xff;
288 static void
289 score_bfd_put_32 (bfd *abfd, bfd_vma addr, void *data)
291 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
292 return score3_bfd_putl32 (addr, data);
293 else
294 return bfd_put_32 (abfd, addr, data);
297 static void
298 score_bfd_put_48 (bfd *abfd, bfd_vma val, void *p)
300 if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
301 return score3_bfd_putl48 (val, p);
302 else
303 return bfd_put_bits (val, p, 48, 1);
306 static bfd_reloc_status_type
307 score_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
308 arelent *reloc_entry,
309 asymbol *symbol ATTRIBUTE_UNUSED,
310 void * data,
311 asection *input_section ATTRIBUTE_UNUSED,
312 bfd *output_bfd ATTRIBUTE_UNUSED,
313 char **error_message ATTRIBUTE_UNUSED)
315 hi16_rel_addr = (bfd_byte *) data + reloc_entry->address;
316 return bfd_reloc_ok;
319 static bfd_reloc_status_type
320 score_elf_lo16_reloc (bfd *abfd,
321 arelent *reloc_entry,
322 asymbol *symbol ATTRIBUTE_UNUSED,
323 void * data,
324 asection *input_section,
325 bfd *output_bfd ATTRIBUTE_UNUSED,
326 char **error_message ATTRIBUTE_UNUSED)
328 bfd_vma addend = 0, offset = 0;
329 unsigned long val;
330 unsigned long hi16_offset, hi16_value, uvalue;
332 hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr);
333 hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1;
334 addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
335 offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1;
336 val = reloc_entry->addend;
337 if (reloc_entry->address > input_section->size)
338 return bfd_reloc_outofrange;
339 uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val;
340 hi16_offset = (uvalue >> 16) << 1;
341 hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
342 score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr);
343 offset = (uvalue & 0xffff) << 1;
344 addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
345 score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address);
346 return bfd_reloc_ok;
349 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
350 dangerous relocation. */
352 static bfd_boolean
353 score_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
355 unsigned int count;
356 asymbol **sym;
357 unsigned int i;
359 /* If we've already figured out what GP will be, just return it. */
360 *pgp = _bfd_get_gp_value (output_bfd);
361 if (*pgp)
362 return TRUE;
364 count = bfd_get_symcount (output_bfd);
365 sym = bfd_get_outsymbols (output_bfd);
367 /* The linker script will have created a symbol named `_gp' with the
368 appropriate value. */
369 if (sym == NULL)
370 i = count;
371 else
373 for (i = 0; i < count; i++, sym++)
375 const char *name;
377 name = bfd_asymbol_name (*sym);
378 if (*name == '_' && strcmp (name, "_gp") == 0)
380 *pgp = bfd_asymbol_value (*sym);
381 _bfd_set_gp_value (output_bfd, *pgp);
382 break;
387 if (i >= count)
389 /* Only get the error once. */
390 *pgp = 4;
391 _bfd_set_gp_value (output_bfd, *pgp);
392 return FALSE;
395 return TRUE;
398 /* We have to figure out the gp value, so that we can adjust the
399 symbol value correctly. We look up the symbol _gp in the output
400 BFD. If we can't find it, we're stuck. We cache it in the ELF
401 target data. We don't need to adjust the symbol value for an
402 external symbol if we are producing relocatable output. */
403 static bfd_reloc_status_type
404 score_elf_final_gp (bfd *output_bfd,
405 asymbol *symbol,
406 bfd_boolean relocatable,
407 char **error_message,
408 bfd_vma *pgp)
410 if (bfd_is_und_section (symbol->section)
411 && ! relocatable)
413 *pgp = 0;
414 return bfd_reloc_undefined;
417 *pgp = _bfd_get_gp_value (output_bfd);
418 if (*pgp == 0
419 && (! relocatable
420 || (symbol->flags & BSF_SECTION_SYM) != 0))
422 if (relocatable)
424 /* Make up a value. */
425 *pgp = symbol->section->output_section->vma + 0x4000;
426 _bfd_set_gp_value (output_bfd, *pgp);
428 else if (!score_elf_assign_gp (output_bfd, pgp))
430 *error_message =
431 (char *) _("GP relative relocation when _gp not defined");
432 return bfd_reloc_dangerous;
436 return bfd_reloc_ok;
439 static bfd_reloc_status_type
440 score_elf_gprel15_with_gp (bfd *abfd,
441 asymbol *symbol,
442 arelent *reloc_entry,
443 asection *input_section,
444 bfd_boolean relocateable,
445 void * data,
446 bfd_vma gp ATTRIBUTE_UNUSED)
448 bfd_vma relocation;
449 unsigned long insn;
451 if (bfd_is_com_section (symbol->section))
452 relocation = 0;
453 else
454 relocation = symbol->value;
456 relocation += symbol->section->output_section->vma;
457 relocation += symbol->section->output_offset;
458 if (reloc_entry->address > input_section->size)
459 return bfd_reloc_outofrange;
461 insn = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
462 if (((reloc_entry->addend & 0xffffc000) != 0)
463 && ((reloc_entry->addend & 0xffffc000) != 0xffffc000))
464 return bfd_reloc_overflow;
466 insn = (insn & ~0x7fff) | (reloc_entry->addend & 0x7fff);
467 score_bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
468 if (relocateable)
469 reloc_entry->address += input_section->output_offset;
471 return bfd_reloc_ok;
474 static bfd_reloc_status_type
475 gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
476 asection *input_section, bfd_boolean relocatable,
477 void *data, bfd_vma gp)
479 bfd_vma relocation;
480 bfd_vma val;
482 if (bfd_is_com_section (symbol->section))
483 relocation = 0;
484 else
485 relocation = symbol->value;
487 relocation += symbol->section->output_section->vma;
488 relocation += symbol->section->output_offset;
490 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
491 return bfd_reloc_outofrange;
493 /* Set val to the offset into the section or symbol. */
494 val = reloc_entry->addend;
496 if (reloc_entry->howto->partial_inplace)
497 val += score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
499 /* Adjust val for the final section location and GP value. If we
500 are producing relocatable output, we don't want to do this for
501 an external symbol. */
502 if (! relocatable
503 || (symbol->flags & BSF_SECTION_SYM) != 0)
504 val += relocation - gp;
506 if (reloc_entry->howto->partial_inplace)
507 score_bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
508 else
509 reloc_entry->addend = val;
511 if (relocatable)
512 reloc_entry->address += input_section->output_offset;
514 return bfd_reloc_ok;
517 static bfd_reloc_status_type
518 score_elf_gprel15_reloc (bfd *abfd,
519 arelent *reloc_entry,
520 asymbol *symbol,
521 void * data,
522 asection *input_section,
523 bfd *output_bfd,
524 char **error_message)
526 bfd_boolean relocateable;
527 bfd_reloc_status_type ret;
528 bfd_vma gp;
530 if (output_bfd != NULL
531 && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0)
533 reloc_entry->address += input_section->output_offset;
534 return bfd_reloc_ok;
536 if (output_bfd != NULL)
537 relocateable = TRUE;
538 else
540 relocateable = FALSE;
541 output_bfd = symbol->section->output_section->owner;
544 ret = score_elf_final_gp (output_bfd, symbol, relocateable, error_message, &gp);
545 if (ret != bfd_reloc_ok)
546 return ret;
548 return score_elf_gprel15_with_gp (abfd, symbol, reloc_entry,
549 input_section, relocateable, data, gp);
552 /* Do a R_SCORE_GPREL32 relocation. This is a 32 bit value which must
553 become the offset from the gp register. */
555 static bfd_reloc_status_type
556 score_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
557 void *data, asection *input_section, bfd *output_bfd,
558 char **error_message)
560 bfd_boolean relocatable;
561 bfd_reloc_status_type ret;
562 bfd_vma gp;
564 /* R_SCORE_GPREL32 relocations are defined for local symbols only. */
565 if (output_bfd != NULL
566 && (symbol->flags & BSF_SECTION_SYM) == 0
567 && (symbol->flags & BSF_LOCAL) != 0)
569 *error_message = (char *)
570 _("32bits gp relative relocation occurs for an external symbol");
571 return bfd_reloc_outofrange;
574 if (output_bfd != NULL)
575 relocatable = TRUE;
576 else
578 relocatable = FALSE;
579 output_bfd = symbol->section->output_section->owner;
582 ret = score_elf_final_gp (output_bfd, symbol, relocatable, error_message, &gp);
583 if (ret != bfd_reloc_ok)
584 return ret;
586 gp = 0;
587 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
588 relocatable, data, gp);
591 /* A howto special_function for R_SCORE_GOT15 relocations. This is just
592 like any other 16-bit relocation when applied to global symbols, but is
593 treated in the same as R_SCORE_HI16 when applied to local symbols. */
594 static bfd_reloc_status_type
595 score_elf_got15_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
596 void *data, asection *input_section,
597 bfd *output_bfd, char **error_message)
599 if ((symbol->flags & (BSF_GLOBAL | BSF_WEAK)) != 0
600 || bfd_is_und_section (bfd_get_section (symbol))
601 || bfd_is_com_section (bfd_get_section (symbol)))
602 /* The relocation is against a global symbol. */
603 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
604 input_section, output_bfd,
605 error_message);
607 return score_elf_hi16_reloc (abfd, reloc_entry, symbol, data,
608 input_section, output_bfd, error_message);
611 static bfd_reloc_status_type
612 score_elf_got_lo16_reloc (bfd *abfd,
613 arelent *reloc_entry,
614 asymbol *symbol ATTRIBUTE_UNUSED,
615 void * data,
616 asection *input_section,
617 bfd *output_bfd ATTRIBUTE_UNUSED,
618 char **error_message ATTRIBUTE_UNUSED)
620 bfd_vma addend = 0, offset = 0;
621 signed long val;
622 signed long hi16_offset, hi16_value, uvalue;
624 hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr);
625 hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1;
626 addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
627 offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1;
628 val = reloc_entry->addend;
629 if (reloc_entry->address > input_section->size)
630 return bfd_reloc_outofrange;
631 uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val;
632 if ((uvalue > -0x8000) && (uvalue < 0x7fff))
633 hi16_offset = 0;
634 else
635 hi16_offset = (uvalue >> 16) & 0x7fff;
636 hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
637 score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr);
638 offset = (uvalue & 0xffff) << 1;
639 addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
640 score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address);
641 return bfd_reloc_ok;
644 static reloc_howto_type elf32_score_howto_table[] =
646 /* No relocation. */
647 HOWTO (R_SCORE_NONE, /* type */
648 0, /* rightshift */
649 0, /* size (0 = byte, 1 = short, 2 = long) */
650 0, /* bitsize */
651 FALSE, /* pc_relative */
652 0, /* bitpos */
653 complain_overflow_dont,/* complain_on_overflow */
654 bfd_elf_generic_reloc, /* special_function */
655 "R_SCORE_NONE", /* name */
656 FALSE, /* partial_inplace */
657 0, /* src_mask */
658 0, /* dst_mask */
659 FALSE), /* pcrel_offset */
661 /* R_SCORE_HI16 */
662 HOWTO (R_SCORE_HI16, /* type */
663 0, /* rightshift */
664 2, /* size (0 = byte, 1 = short, 2 = long) */
665 16, /* bitsize */
666 FALSE, /* pc_relative */
667 1, /* bitpos */
668 complain_overflow_dont,/* complain_on_overflow */
669 score_elf_hi16_reloc, /* special_function */
670 "R_SCORE_HI16", /* name */
671 TRUE, /* partial_inplace */
672 0x37fff, /* src_mask */
673 0x37fff, /* dst_mask */
674 FALSE), /* pcrel_offset */
676 /* R_SCORE_LO16 */
677 HOWTO (R_SCORE_LO16, /* type */
678 0, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 16, /* bitsize */
681 FALSE, /* pc_relative */
682 1, /* bitpos */
683 complain_overflow_dont,/* complain_on_overflow */
684 score_elf_lo16_reloc, /* special_function */
685 "R_SCORE_LO16", /* name */
686 TRUE, /* partial_inplace */
687 0x37fff, /* src_mask */
688 0x37fff, /* dst_mask */
689 FALSE), /* pcrel_offset */
691 /* R_SCORE_BCMP */
692 HOWTO (R_SCORE_BCMP, /* type */
693 1, /* rightshift */
694 2, /* size (0 = byte, 1 = short, 2 = long) */
695 16, /* bitsize */
696 TRUE, /* pc_relative */
697 1, /* bitpos */
698 complain_overflow_dont,/* complain_on_overflow */
699 bfd_elf_generic_reloc, /* special_function */
700 "R_SCORE_BCMP", /* name */
701 FALSE, /* partial_inplace */
702 0x03e00381, /* src_mask */
703 0x03e00381, /* dst_mask */
704 FALSE), /* pcrel_offset */
706 /*R_SCORE_24 */
707 HOWTO (R_SCORE_24, /* type */
708 1, /* rightshift */
709 2, /* size (0 = byte, 1 = short, 2 = long) */
710 24, /* bitsize */
711 FALSE, /* pc_relative */
712 1, /* bitpos */
713 complain_overflow_dont,/* complain_on_overflow */
714 bfd_elf_generic_reloc, /* special_function */
715 "R_SCORE_24", /* name */
716 FALSE, /* partial_inplace */
717 0x3ff7fff, /* src_mask */
718 0x3ff7fff, /* dst_mask */
719 FALSE), /* pcrel_offset */
721 /*R_SCORE_PC19 */
722 HOWTO (R_SCORE_PC19, /* type */
723 1, /* rightshift */
724 2, /* size (0 = byte, 1 = short, 2 = long) */
725 19, /* bitsize */
726 TRUE, /* pc_relative */
727 1, /* bitpos */
728 complain_overflow_dont,/* complain_on_overflow */
729 bfd_elf_generic_reloc, /* special_function */
730 "R_SCORE_PC19", /* name */
731 FALSE, /* partial_inplace */
732 0x3ff03fe, /* src_mask */
733 0x3ff03fe, /* dst_mask */
734 FALSE), /* pcrel_offset */
736 /*R_SCORE16_11 */
737 HOWTO (R_SCORE16_11, /* type */
738 1, /* rightshift */
739 1, /* size (0 = byte, 1 = short, 2 = long) */
740 11, /* bitsize */
741 FALSE, /* pc_relative */
742 1, /* bitpos */
743 complain_overflow_dont,/* complain_on_overflow */
744 bfd_elf_generic_reloc, /* special_function */
745 "R_SCORE16_11", /* name */
746 FALSE, /* partial_inplace */
747 0x000000ffe, /* src_mask */
748 0x000000ffe, /* dst_mask */
749 FALSE), /* pcrel_offset */
751 /* R_SCORE16_PC8 */
752 HOWTO (R_SCORE16_PC8, /* type */
753 1, /* rightshift */
754 1, /* size (0 = byte, 1 = short, 2 = long) */
755 9, /* bitsize */
756 TRUE, /* pc_relative */
757 0, /* bitpos */
758 complain_overflow_dont,/* complain_on_overflow */
759 bfd_elf_generic_reloc, /* special_function */
760 "R_SCORE16_PC8", /* name */
761 FALSE, /* partial_inplace */
762 0x000001ff, /* src_mask */
763 0x000001ff, /* dst_mask */
764 FALSE), /* pcrel_offset */
766 /* 32 bit absolute */
767 HOWTO (R_SCORE_ABS32, /* type 8 */
768 0, /* rightshift */
769 2, /* size (0 = byte, 1 = short, 2 = long) */
770 32, /* bitsize */
771 FALSE, /* pc_relative */
772 0, /* bitpos */
773 complain_overflow_bitfield, /* complain_on_overflow */
774 bfd_elf_generic_reloc, /* special_function */
775 "R_SCORE_ABS32", /* name */
776 FALSE, /* partial_inplace */
777 0xffffffff, /* src_mask */
778 0xffffffff, /* dst_mask */
779 FALSE), /* pcrel_offset */
781 /* 16 bit absolute */
782 HOWTO (R_SCORE_ABS16, /* type 11 */
783 0, /* rightshift */
784 1, /* size (0 = byte, 1 = short, 2 = long) */
785 16, /* bitsize */
786 FALSE, /* pc_relative */
787 0, /* bitpos */
788 complain_overflow_bitfield, /* complain_on_overflow */
789 bfd_elf_generic_reloc, /* special_function */
790 "R_SCORE_ABS16", /* name */
791 FALSE, /* partial_inplace */
792 0x0000ffff, /* src_mask */
793 0x0000ffff, /* dst_mask */
794 FALSE), /* pcrel_offset */
796 /* R_SCORE_DUMMY2 */
797 HOWTO (R_SCORE_DUMMY2, /* type */
798 0, /* rightshift */
799 2, /* size (0 = byte, 1 = short, 2 = long) */
800 16, /* bitsize */
801 FALSE, /* pc_relative */
802 0, /* bitpos */
803 complain_overflow_dont,/* complain_on_overflow */
804 bfd_elf_generic_reloc, /* special_function */
805 "R_SCORE_DUMMY2", /* name */
806 TRUE, /* partial_inplace */
807 0x00007fff, /* src_mask */
808 0x00007fff, /* dst_mask */
809 FALSE), /* pcrel_offset */
811 /* R_SCORE_GP15 */
812 HOWTO (R_SCORE_GP15, /* type */
813 0, /* rightshift */
814 2, /* size (0 = byte, 1 = short, 2 = long) */
815 16, /* bitsize */
816 FALSE, /* pc_relative */
817 0, /* bitpos */
818 complain_overflow_dont,/* complain_on_overflow */
819 score_elf_gprel15_reloc,/* special_function */
820 "R_SCORE_GP15", /* name */
821 TRUE, /* partial_inplace */
822 0x00007fff, /* src_mask */
823 0x00007fff, /* dst_mask */
824 FALSE), /* pcrel_offset */
826 /* GNU extension to record C++ vtable hierarchy. */
827 HOWTO (R_SCORE_GNU_VTINHERIT, /* type */
828 0, /* rightshift */
829 2, /* size (0 = byte, 1 = short, 2 = long) */
830 0, /* bitsize */
831 FALSE, /* pc_relative */
832 0, /* bitpos */
833 complain_overflow_dont,/* complain_on_overflow */
834 NULL, /* special_function */
835 "R_SCORE_GNU_VTINHERIT", /* name */
836 FALSE, /* partial_inplace */
837 0, /* src_mask */
838 0, /* dst_mask */
839 FALSE), /* pcrel_offset */
841 /* GNU extension to record C++ vtable member usage */
842 HOWTO (R_SCORE_GNU_VTENTRY, /* type */
843 0, /* rightshift */
844 2, /* size (0 = byte, 1 = short, 2 = long) */
845 0, /* bitsize */
846 FALSE, /* pc_relative */
847 0, /* bitpos */
848 complain_overflow_dont,/* complain_on_overflow */
849 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
850 "R_SCORE_GNU_VTENTRY", /* name */
851 FALSE, /* partial_inplace */
852 0, /* src_mask */
853 0, /* dst_mask */
854 FALSE), /* pcrel_offset */
856 /* Reference to global offset table. */
857 HOWTO (R_SCORE_GOT15, /* type */
858 0, /* rightshift */
859 2, /* size (0 = byte, 1 = short, 2 = long) */
860 16, /* bitsize */
861 FALSE, /* pc_relative */
862 0, /* bitpos */
863 complain_overflow_signed, /* complain_on_overflow */
864 score_elf_got15_reloc, /* special_function */
865 "R_SCORE_GOT15", /* name */
866 TRUE, /* partial_inplace */
867 0x00007fff, /* src_mask */
868 0x00007fff, /* dst_mask */
869 FALSE), /* pcrel_offset */
871 /* Low 16 bits of displacement in global offset table. */
872 HOWTO (R_SCORE_GOT_LO16, /* type */
873 0, /* rightshift */
874 2, /* size (0 = byte, 1 = short, 2 = long) */
875 16, /* bitsize */
876 FALSE, /* pc_relative */
877 1, /* bitpos */
878 complain_overflow_dont,/* complain_on_overflow */
879 score_elf_got_lo16_reloc, /* special_function */
880 "R_SCORE_GOT_LO16", /* name */
881 TRUE, /* partial_inplace */
882 0x37ffe, /* src_mask */
883 0x37ffe, /* dst_mask */
884 FALSE), /* pcrel_offset */
886 /* 15 bit call through global offset table. */
887 HOWTO (R_SCORE_CALL15, /* type */
888 0, /* rightshift */
889 2, /* size (0 = byte, 1 = short, 2 = long) */
890 16, /* bitsize */
891 FALSE, /* pc_relative */
892 0, /* bitpos */
893 complain_overflow_signed, /* complain_on_overflow */
894 bfd_elf_generic_reloc, /* special_function */
895 "R_SCORE_CALL15", /* name */
896 TRUE, /* partial_inplace */
897 0x0000ffff, /* src_mask */
898 0x0000ffff, /* dst_mask */
899 FALSE), /* pcrel_offset */
901 /* 32 bit GP relative reference. */
902 HOWTO (R_SCORE_GPREL32, /* type */
903 0, /* rightshift */
904 2, /* size (0 = byte, 1 = short, 2 = long) */
905 32, /* bitsize */
906 FALSE, /* pc_relative */
907 0, /* bitpos */
908 complain_overflow_dont,/* complain_on_overflow */
909 score_elf_gprel32_reloc, /* special_function */
910 "R_SCORE_GPREL32", /* name */
911 TRUE, /* partial_inplace */
912 0xffffffff, /* src_mask */
913 0xffffffff, /* dst_mask */
914 FALSE), /* pcrel_offset */
916 /* 32 bit symbol relative relocation. */
917 HOWTO (R_SCORE_REL32, /* type */
918 0, /* rightshift */
919 2, /* size (0 = byte, 1 = short, 2 = long) */
920 32, /* bitsize */
921 FALSE, /* pc_relative */
922 0, /* bitpos */
923 complain_overflow_dont,/* complain_on_overflow */
924 bfd_elf_generic_reloc, /* special_function */
925 "R_SCORE_REL32", /* name */
926 TRUE, /* partial_inplace */
927 0xffffffff, /* src_mask */
928 0xffffffff, /* dst_mask */
929 FALSE), /* pcrel_offset */
931 /* R_SCORE_DUMMY_HI16 */
932 HOWTO (R_SCORE_DUMMY_HI16, /* type */
933 0, /* rightshift */
934 2, /* size (0 = byte, 1 = short, 2 = long) */
935 16, /* bitsize */
936 FALSE, /* pc_relative */
937 1, /* bitpos */
938 complain_overflow_dont,/* complain_on_overflow */
939 score_elf_hi16_reloc, /* special_function */
940 "R_SCORE_DUMMY_HI16", /* name */
941 TRUE, /* partial_inplace */
942 0x37fff, /* src_mask */
943 0x37fff, /* dst_mask */
944 FALSE), /* pcrel_offset */
946 /* R_SCORE_IMM30 */
947 HOWTO (R_SCORE_IMM30, /* type */
948 2, /* rightshift */
949 2, /* size (0 = byte, 1 = short, 2 = long) */
950 30, /* bitsize */
951 FALSE, /* pc_relative */
952 7, /* bitpos */
953 complain_overflow_dont,/* complain_on_overflow */
954 bfd_elf_generic_reloc, /* special_function */
955 "R_SCORE_IMM30", /* name */
956 FALSE, /* partial_inplace */
957 0x7f7fff7f80LL, /* src_mask */
958 0x7f7fff7f80LL, /* dst_mask */
959 FALSE), /* pcrel_offset */
961 /* R_SCORE_IMM32 */
962 HOWTO (R_SCORE_IMM32, /* type */
963 0, /* rightshift */
964 2, /* size (0 = byte, 1 = short, 2 = long) */
965 32, /* bitsize */
966 FALSE, /* pc_relative */
967 5, /* bitpos */
968 complain_overflow_dont,/* complain_on_overflow */
969 bfd_elf_generic_reloc, /* special_function */
970 "R_SCORE_IMM32", /* name */
971 FALSE, /* partial_inplace */
972 0x7f7fff7fe0LL, /* src_mask */
973 0x7f7fff7fe0LL, /* dst_mask */
974 FALSE), /* pcrel_offset */
977 struct score_reloc_map
979 bfd_reloc_code_real_type bfd_reloc_val;
980 unsigned char elf_reloc_val;
983 static const struct score_reloc_map elf32_score_reloc_map[] =
985 {BFD_RELOC_NONE, R_SCORE_NONE},
986 {BFD_RELOC_HI16_S, R_SCORE_HI16},
987 {BFD_RELOC_LO16, R_SCORE_LO16},
988 {BFD_RELOC_SCORE_BCMP, R_SCORE_BCMP},
989 {BFD_RELOC_SCORE_JMP, R_SCORE_24},
990 {BFD_RELOC_SCORE_BRANCH, R_SCORE_PC19},
991 {BFD_RELOC_SCORE16_JMP, R_SCORE16_11},
992 {BFD_RELOC_SCORE16_BRANCH, R_SCORE16_PC8},
993 {BFD_RELOC_32, R_SCORE_ABS32},
994 {BFD_RELOC_16, R_SCORE_ABS16},
995 {BFD_RELOC_SCORE_DUMMY2, R_SCORE_DUMMY2},
996 {BFD_RELOC_SCORE_GPREL15, R_SCORE_GP15},
997 {BFD_RELOC_VTABLE_INHERIT, R_SCORE_GNU_VTINHERIT},
998 {BFD_RELOC_VTABLE_ENTRY, R_SCORE_GNU_VTENTRY},
999 {BFD_RELOC_SCORE_GOT15, R_SCORE_GOT15},
1000 {BFD_RELOC_SCORE_GOT_LO16, R_SCORE_GOT_LO16},
1001 {BFD_RELOC_SCORE_CALL15, R_SCORE_CALL15},
1002 {BFD_RELOC_GPREL32, R_SCORE_GPREL32},
1003 {BFD_RELOC_32_PCREL, R_SCORE_REL32},
1004 {BFD_RELOC_SCORE_DUMMY_HI16, R_SCORE_DUMMY_HI16},
1005 {BFD_RELOC_SCORE_IMM30, R_SCORE_IMM30},
1006 {BFD_RELOC_SCORE_IMM32, R_SCORE_IMM32},
1009 /* got_entries only match if they're identical, except for gotidx, so
1010 use all fields to compute the hash, and compare the appropriate
1011 union members. */
1012 static hashval_t
1013 score_elf_got_entry_hash (const void *entry_)
1015 const struct score_got_entry *entry = (struct score_got_entry *)entry_;
1017 return entry->symndx
1018 + (!entry->abfd ? entry->d.address : entry->abfd->id);
1021 static int
1022 score_elf_got_entry_eq (const void *entry1, const void *entry2)
1024 const struct score_got_entry *e1 = (struct score_got_entry *)entry1;
1025 const struct score_got_entry *e2 = (struct score_got_entry *)entry2;
1027 return e1->abfd == e2->abfd && e1->symndx == e2->symndx
1028 && (! e1->abfd ? e1->d.address == e2->d.address
1029 : e1->symndx >= 0 ? e1->d.addend == e2->d.addend
1030 : e1->d.h == e2->d.h);
1033 /* If H needs a GOT entry, assign it the highest available dynamic
1034 index. Otherwise, assign it the lowest available dynamic
1035 index. */
1036 static bfd_boolean
1037 score_elf_sort_hash_table_f (struct score_elf_link_hash_entry *h, void *data)
1039 struct score_elf_hash_sort_data *hsd = data;
1041 /* Symbols without dynamic symbol table entries aren't interesting at all. */
1042 if (h->root.dynindx == -1)
1043 return TRUE;
1045 /* Global symbols that need GOT entries that are not explicitly
1046 referenced are marked with got offset 2. Those that are
1047 referenced get a 1, and those that don't need GOT entries get
1048 -1. */
1049 if (h->root.got.offset == 2)
1051 if (hsd->max_unref_got_dynindx == hsd->min_got_dynindx)
1052 hsd->low = (struct elf_link_hash_entry *) h;
1053 h->root.dynindx = hsd->max_unref_got_dynindx++;
1055 else if (h->root.got.offset != 1)
1056 h->root.dynindx = hsd->max_non_got_dynindx++;
1057 else
1059 h->root.dynindx = --hsd->min_got_dynindx;
1060 hsd->low = (struct elf_link_hash_entry *) h;
1063 return TRUE;
1066 static asection *
1067 score_elf_got_section (bfd *abfd, bfd_boolean maybe_excluded)
1069 asection *sgot = bfd_get_section_by_name (abfd, ".got");
1071 if (sgot == NULL || (! maybe_excluded && (sgot->flags & SEC_EXCLUDE) != 0))
1072 return NULL;
1073 return sgot;
1076 /* Returns the GOT information associated with the link indicated by
1077 INFO. If SGOTP is non-NULL, it is filled in with the GOT section. */
1078 static struct score_got_info *
1079 score_elf_got_info (bfd *abfd, asection **sgotp)
1081 asection *sgot;
1082 struct score_got_info *g;
1084 sgot = score_elf_got_section (abfd, TRUE);
1085 BFD_ASSERT (sgot != NULL);
1086 BFD_ASSERT (elf_section_data (sgot) != NULL);
1087 g = score_elf_section_data (sgot)->u.got_info;
1088 BFD_ASSERT (g != NULL);
1090 if (sgotp)
1091 *sgotp = sgot;
1092 return g;
1095 /* Sort the dynamic symbol table so that symbols that need GOT entries
1096 appear towards the end. This reduces the amount of GOT space
1097 required. MAX_LOCAL is used to set the number of local symbols
1098 known to be in the dynamic symbol table. During
1099 s3_bfd_score_elf_size_dynamic_sections, this value is 1. Afterward, the
1100 section symbols are added and the count is higher. */
1101 static bfd_boolean
1102 score_elf_sort_hash_table (struct bfd_link_info *info,
1103 unsigned long max_local)
1105 struct score_elf_hash_sort_data hsd;
1106 struct score_got_info *g;
1107 bfd *dynobj;
1109 dynobj = elf_hash_table (info)->dynobj;
1111 g = score_elf_got_info (dynobj, NULL);
1113 hsd.low = NULL;
1114 hsd.max_unref_got_dynindx =
1115 hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount
1116 /* In the multi-got case, assigned_gotno of the master got_info
1117 indicate the number of entries that aren't referenced in the
1118 primary GOT, but that must have entries because there are
1119 dynamic relocations that reference it. Since they aren't
1120 referenced, we move them to the end of the GOT, so that they
1121 don't prevent other entries that are referenced from getting
1122 too large offsets. */
1123 - (g->next ? g->assigned_gotno : 0);
1124 hsd.max_non_got_dynindx = max_local;
1125 score_elf_link_hash_traverse (elf_hash_table (info),
1126 score_elf_sort_hash_table_f,
1127 &hsd);
1129 /* There should have been enough room in the symbol table to
1130 accommodate both the GOT and non-GOT symbols. */
1131 BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
1132 BFD_ASSERT ((unsigned long)hsd.max_unref_got_dynindx
1133 <= elf_hash_table (info)->dynsymcount);
1135 /* Now we know which dynamic symbol has the lowest dynamic symbol
1136 table index in the GOT. */
1137 g->global_gotsym = hsd.low;
1139 return TRUE;
1142 /* Create an entry in an score ELF linker hash table. */
1144 static struct bfd_hash_entry *
1145 score_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1146 struct bfd_hash_table *table,
1147 const char *string)
1149 struct score_elf_link_hash_entry *ret = (struct score_elf_link_hash_entry *) entry;
1151 /* Allocate the structure if it has not already been allocated by a subclass. */
1152 if (ret == NULL)
1153 ret = bfd_hash_allocate (table, sizeof (struct score_elf_link_hash_entry));
1154 if (ret == NULL)
1155 return (struct bfd_hash_entry *) ret;
1157 /* Call the allocation method of the superclass. */
1158 ret = ((struct score_elf_link_hash_entry *)
1159 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
1161 if (ret != NULL)
1163 ret->possibly_dynamic_relocs = 0;
1164 ret->readonly_reloc = FALSE;
1165 ret->no_fn_stub = FALSE;
1166 ret->forced_local = FALSE;
1169 return (struct bfd_hash_entry *) ret;
1172 /* Returns the first relocation of type r_type found, beginning with
1173 RELOCATION. RELEND is one-past-the-end of the relocation table. */
1174 static const Elf_Internal_Rela *
1175 score_elf_next_relocation (bfd *abfd ATTRIBUTE_UNUSED, unsigned int r_type,
1176 const Elf_Internal_Rela *relocation,
1177 const Elf_Internal_Rela *relend)
1179 while (relocation < relend)
1181 if (ELF32_R_TYPE (relocation->r_info) == r_type)
1182 return relocation;
1184 ++relocation;
1187 /* We didn't find it. */
1188 bfd_set_error (bfd_error_bad_value);
1189 return NULL;
1192 /* This function is called via qsort() to sort the dynamic relocation
1193 entries by increasing r_symndx value. */
1194 static int
1195 score_elf_sort_dynamic_relocs (const void *arg1, const void *arg2)
1197 Elf_Internal_Rela int_reloc1;
1198 Elf_Internal_Rela int_reloc2;
1200 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg1, &int_reloc1);
1201 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg2, &int_reloc2);
1203 return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info));
1206 /* Return whether a relocation is against a local symbol. */
1207 static bfd_boolean
1208 score_elf_local_relocation_p (bfd *input_bfd,
1209 const Elf_Internal_Rela *relocation,
1210 asection **local_sections,
1211 bfd_boolean check_forced)
1213 unsigned long r_symndx;
1214 Elf_Internal_Shdr *symtab_hdr;
1215 struct score_elf_link_hash_entry *h;
1216 size_t extsymoff;
1218 r_symndx = ELF32_R_SYM (relocation->r_info);
1219 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1220 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
1222 if (r_symndx < extsymoff)
1223 return TRUE;
1224 if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL)
1225 return TRUE;
1227 if (check_forced)
1229 /* Look up the hash table to check whether the symbol was forced local. */
1230 h = (struct score_elf_link_hash_entry *)
1231 elf_sym_hashes (input_bfd) [r_symndx - extsymoff];
1232 /* Find the real hash-table entry for this symbol. */
1233 while (h->root.root.type == bfd_link_hash_indirect
1234 || h->root.root.type == bfd_link_hash_warning)
1235 h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link;
1236 if (h->root.forced_local)
1237 return TRUE;
1240 return FALSE;
1243 /* Returns the dynamic relocation section for DYNOBJ. */
1244 static asection *
1245 score_elf_rel_dyn_section (bfd *dynobj, bfd_boolean create_p)
1247 static const char dname[] = ".rel.dyn";
1248 asection *sreloc;
1250 sreloc = bfd_get_section_by_name (dynobj, dname);
1251 if (sreloc == NULL && create_p)
1253 sreloc = bfd_make_section_with_flags (dynobj, dname,
1254 (SEC_ALLOC
1255 | SEC_LOAD
1256 | SEC_HAS_CONTENTS
1257 | SEC_IN_MEMORY
1258 | SEC_LINKER_CREATED
1259 | SEC_READONLY));
1260 if (sreloc == NULL
1261 || ! bfd_set_section_alignment (dynobj, sreloc,
1262 SCORE_ELF_LOG_FILE_ALIGN (dynobj)))
1263 return NULL;
1265 return sreloc;
1268 static void
1269 score_elf_allocate_dynamic_relocations (bfd *abfd, unsigned int n)
1271 asection *s;
1273 s = score_elf_rel_dyn_section (abfd, FALSE);
1274 BFD_ASSERT (s != NULL);
1276 if (s->size == 0)
1278 /* Make room for a null element. */
1279 s->size += SCORE_ELF_REL_SIZE (abfd);
1280 ++s->reloc_count;
1282 s->size += n * SCORE_ELF_REL_SIZE (abfd);
1285 /* Create a rel.dyn relocation for the dynamic linker to resolve. REL
1286 is the original relocation, which is now being transformed into a
1287 dynamic relocation. The ADDENDP is adjusted if necessary; the
1288 caller should store the result in place of the original addend. */
1289 static bfd_boolean
1290 score_elf_create_dynamic_relocation (bfd *output_bfd,
1291 struct bfd_link_info *info,
1292 const Elf_Internal_Rela *rel,
1293 struct score_elf_link_hash_entry *h,
1294 bfd_vma symbol,
1295 bfd_vma *addendp, asection *input_section)
1297 Elf_Internal_Rela outrel[3];
1298 asection *sreloc;
1299 bfd *dynobj;
1300 int r_type;
1301 long indx;
1302 bfd_boolean defined_p;
1304 r_type = ELF32_R_TYPE (rel->r_info);
1305 dynobj = elf_hash_table (info)->dynobj;
1306 sreloc = score_elf_rel_dyn_section (dynobj, FALSE);
1307 BFD_ASSERT (sreloc != NULL);
1308 BFD_ASSERT (sreloc->contents != NULL);
1309 BFD_ASSERT (sreloc->reloc_count * SCORE_ELF_REL_SIZE (output_bfd) < sreloc->size);
1311 outrel[0].r_offset =
1312 _bfd_elf_section_offset (output_bfd, info, input_section, rel[0].r_offset);
1313 outrel[1].r_offset =
1314 _bfd_elf_section_offset (output_bfd, info, input_section, rel[1].r_offset);
1315 outrel[2].r_offset =
1316 _bfd_elf_section_offset (output_bfd, info, input_section, rel[2].r_offset);
1318 if (outrel[0].r_offset == MINUS_ONE)
1319 /* The relocation field has been deleted. */
1320 return TRUE;
1322 if (outrel[0].r_offset == MINUS_TWO)
1324 /* The relocation field has been converted into a relative value of
1325 some sort. Functions like _bfd_elf_write_section_eh_frame expect
1326 the field to be fully relocated, so add in the symbol's value. */
1327 *addendp += symbol;
1328 return TRUE;
1331 /* We must now calculate the dynamic symbol table index to use
1332 in the relocation. */
1333 if (h != NULL
1334 && (! info->symbolic || !h->root.def_regular)
1335 /* h->root.dynindx may be -1 if this symbol was marked to
1336 become local. */
1337 && h->root.dynindx != -1)
1339 indx = h->root.dynindx;
1340 /* ??? glibc's ld.so just adds the final GOT entry to the
1341 relocation field. It therefore treats relocs against
1342 defined symbols in the same way as relocs against
1343 undefined symbols. */
1344 defined_p = FALSE;
1346 else
1348 indx = 0;
1349 defined_p = TRUE;
1352 /* If the relocation was previously an absolute relocation and
1353 this symbol will not be referred to by the relocation, we must
1354 adjust it by the value we give it in the dynamic symbol table.
1355 Otherwise leave the job up to the dynamic linker. */
1356 if (defined_p && r_type != R_SCORE_REL32)
1357 *addendp += symbol;
1359 /* The relocation is always an REL32 relocation because we don't
1360 know where the shared library will wind up at load-time. */
1361 outrel[0].r_info = ELF32_R_INFO ((unsigned long) indx, R_SCORE_REL32);
1363 /* For strict adherence to the ABI specification, we should
1364 generate a R_SCORE_64 relocation record by itself before the
1365 _REL32/_64 record as well, such that the addend is read in as
1366 a 64-bit value (REL32 is a 32-bit relocation, after all).
1367 However, since none of the existing ELF64 SCORE dynamic
1368 loaders seems to care, we don't waste space with these
1369 artificial relocations. If this turns out to not be true,
1370 score_elf_allocate_dynamic_relocations() should be tweaked so
1371 as to make room for a pair of dynamic relocations per
1372 invocation if ABI_64_P, and here we should generate an
1373 additional relocation record with R_SCORE_64 by itself for a
1374 NULL symbol before this relocation record. */
1375 outrel[1].r_info = ELF32_R_INFO (0, R_SCORE_NONE);
1376 outrel[2].r_info = ELF32_R_INFO (0, R_SCORE_NONE);
1378 /* Adjust the output offset of the relocation to reference the
1379 correct location in the output file. */
1380 outrel[0].r_offset += (input_section->output_section->vma
1381 + input_section->output_offset);
1382 outrel[1].r_offset += (input_section->output_section->vma
1383 + input_section->output_offset);
1384 outrel[2].r_offset += (input_section->output_section->vma
1385 + input_section->output_offset);
1387 /* Put the relocation back out. We have to use the special
1388 relocation outputter in the 64-bit case since the 64-bit
1389 relocation format is non-standard. */
1390 bfd_elf32_swap_reloc_out
1391 (output_bfd, &outrel[0],
1392 (sreloc->contents + sreloc->reloc_count * sizeof (Elf32_External_Rel)));
1394 /* We've now added another relocation. */
1395 ++sreloc->reloc_count;
1397 /* Make sure the output section is writable. The dynamic linker
1398 will be writing to it. */
1399 elf_section_data (input_section->output_section)->this_hdr.sh_flags |= SHF_WRITE;
1401 return TRUE;
1404 static bfd_boolean
1405 score_elf_create_got_section (bfd *abfd,
1406 struct bfd_link_info *info,
1407 bfd_boolean maybe_exclude)
1409 flagword flags;
1410 asection *s;
1411 struct elf_link_hash_entry *h;
1412 struct bfd_link_hash_entry *bh;
1413 struct score_got_info *g;
1414 bfd_size_type amt;
1416 /* This function may be called more than once. */
1417 s = score_elf_got_section (abfd, TRUE);
1418 if (s)
1420 if (! maybe_exclude)
1421 s->flags &= ~SEC_EXCLUDE;
1422 return TRUE;
1425 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1427 if (maybe_exclude)
1428 flags |= SEC_EXCLUDE;
1430 /* We have to use an alignment of 2**4 here because this is hardcoded
1431 in the function stub generation and in the linker script. */
1432 s = bfd_make_section_with_flags (abfd, ".got", flags);
1433 if (s == NULL
1434 || ! bfd_set_section_alignment (abfd, s, 4))
1435 return FALSE;
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;
1446 h = (struct elf_link_hash_entry *) bh;
1447 h->non_elf = 0;
1448 h->def_regular = 1;
1449 h->type = STT_OBJECT;
1451 if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h))
1452 return FALSE;
1454 amt = sizeof (struct score_got_info);
1455 g = bfd_alloc (abfd, amt);
1456 if (g == NULL)
1457 return FALSE;
1459 g->global_gotsym = NULL;
1460 g->global_gotno = 0;
1462 g->local_gotno = SCORE_RESERVED_GOTNO;
1463 g->assigned_gotno = SCORE_RESERVED_GOTNO;
1464 g->next = NULL;
1466 g->got_entries = htab_try_create (1, score_elf_got_entry_hash,
1467 score_elf_got_entry_eq, NULL);
1468 if (g->got_entries == NULL)
1469 return FALSE;
1470 score_elf_section_data (s)->u.got_info = g;
1471 score_elf_section_data (s)->elf.this_hdr.sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL;
1473 return TRUE;
1476 /* Calculate the %high function. */
1477 static bfd_vma
1478 score_elf_high (bfd_vma value)
1480 return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
1483 /* Create a local GOT entry for VALUE. Return the index of the entry,
1484 or -1 if it could not be created. */
1485 static struct score_got_entry *
1486 score_elf_create_local_got_entry (bfd *abfd,
1487 bfd *ibfd ATTRIBUTE_UNUSED,
1488 struct score_got_info *gg,
1489 asection *sgot, bfd_vma value,
1490 unsigned long r_symndx ATTRIBUTE_UNUSED,
1491 struct score_elf_link_hash_entry *h ATTRIBUTE_UNUSED,
1492 int r_type ATTRIBUTE_UNUSED)
1494 struct score_got_entry entry, **loc;
1495 struct score_got_info *g;
1497 entry.abfd = NULL;
1498 entry.symndx = -1;
1499 entry.d.address = value;
1501 g = gg;
1502 loc = (struct score_got_entry **) htab_find_slot (g->got_entries, &entry, INSERT);
1503 if (*loc)
1504 return *loc;
1506 entry.gotidx = SCORE_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
1508 *loc = bfd_alloc (abfd, sizeof entry);
1510 if (! *loc)
1511 return NULL;
1513 memcpy (*loc, &entry, sizeof entry);
1515 if (g->assigned_gotno >= g->local_gotno)
1517 (*loc)->gotidx = -1;
1518 /* We didn't allocate enough space in the GOT. */
1519 (*_bfd_error_handler)
1520 (_("not enough GOT space for local GOT entries"));
1521 bfd_set_error (bfd_error_bad_value);
1522 return NULL;
1525 score_bfd_put_32 (abfd, value, (sgot->contents + entry.gotidx));
1527 return *loc;
1530 /* Find a GOT entry whose higher-order 16 bits are the same as those
1531 for value. Return the index into the GOT for this entry. */
1532 static bfd_vma
1533 score_elf_got16_entry (bfd *abfd, bfd *ibfd, struct bfd_link_info *info,
1534 bfd_vma value, bfd_boolean external)
1536 asection *sgot;
1537 struct score_got_info *g;
1538 struct score_got_entry *entry;
1540 if (!external)
1542 /* Although the ABI says that it is "the high-order 16 bits" that we
1543 want, it is really the %high value. The complete value is
1544 calculated with a `addiu' of a LO16 relocation, just as with a
1545 HI16/LO16 pair. */
1546 value = score_elf_high (value) << 16;
1549 g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
1551 entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, 0, NULL,
1552 R_SCORE_GOT15);
1553 if (entry)
1554 return entry->gotidx;
1555 else
1556 return MINUS_ONE;
1559 static void
1560 s3_bfd_score_elf_hide_symbol (struct bfd_link_info *info,
1561 struct elf_link_hash_entry *entry,
1562 bfd_boolean force_local)
1564 bfd *dynobj;
1565 asection *got;
1566 struct score_got_info *g;
1567 struct score_elf_link_hash_entry *h;
1569 h = (struct score_elf_link_hash_entry *) entry;
1570 if (h->forced_local)
1571 return;
1572 h->forced_local = TRUE;
1574 dynobj = elf_hash_table (info)->dynobj;
1575 if (dynobj != NULL && force_local)
1577 got = score_elf_got_section (dynobj, FALSE);
1578 if (got == NULL)
1579 return;
1580 g = score_elf_section_data (got)->u.got_info;
1582 if (g->next)
1584 struct score_got_entry e;
1585 struct score_got_info *gg = g;
1587 /* Since we're turning what used to be a global symbol into a
1588 local one, bump up the number of local entries of each GOT
1589 that had an entry for it. This will automatically decrease
1590 the number of global entries, since global_gotno is actually
1591 the upper limit of global entries. */
1592 e.abfd = dynobj;
1593 e.symndx = -1;
1594 e.d.h = h;
1596 for (g = g->next; g != gg; g = g->next)
1597 if (htab_find (g->got_entries, &e))
1599 BFD_ASSERT (g->global_gotno > 0);
1600 g->local_gotno++;
1601 g->global_gotno--;
1604 /* If this was a global symbol forced into the primary GOT, we
1605 no longer need an entry for it. We can't release the entry
1606 at this point, but we must at least stop counting it as one
1607 of the symbols that required a forced got entry. */
1608 if (h->root.got.offset == 2)
1610 BFD_ASSERT (gg->assigned_gotno > 0);
1611 gg->assigned_gotno--;
1614 else if (g->global_gotno == 0 && g->global_gotsym == NULL)
1615 /* If we haven't got through GOT allocation yet, just bump up the
1616 number of local entries, as this symbol won't be counted as
1617 global. */
1618 g->local_gotno++;
1619 else if (h->root.got.offset == 1)
1621 /* If we're past non-multi-GOT allocation and this symbol had
1622 been marked for a global got entry, give it a local entry
1623 instead. */
1624 BFD_ASSERT (g->global_gotno > 0);
1625 g->local_gotno++;
1626 g->global_gotno--;
1630 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1633 /* If H is a symbol that needs a global GOT entry, but has a dynamic
1634 symbol table index lower than any we've seen to date, record it for
1635 posterity. */
1636 static bfd_boolean
1637 score_elf_record_global_got_symbol (struct elf_link_hash_entry *h,
1638 bfd *abfd,
1639 struct bfd_link_info *info,
1640 struct score_got_info *g)
1642 struct score_got_entry entry, **loc;
1644 /* A global symbol in the GOT must also be in the dynamic symbol table. */
1645 if (h->dynindx == -1)
1647 switch (ELF_ST_VISIBILITY (h->other))
1649 case STV_INTERNAL:
1650 case STV_HIDDEN:
1651 s3_bfd_score_elf_hide_symbol (info, h, TRUE);
1652 break;
1654 if (!bfd_elf_link_record_dynamic_symbol (info, h))
1655 return FALSE;
1658 entry.abfd = abfd;
1659 entry.symndx = -1;
1660 entry.d.h = (struct score_elf_link_hash_entry *)h;
1662 loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT);
1664 /* If we've already marked this entry as needing GOT space, we don't
1665 need to do it again. */
1666 if (*loc)
1667 return TRUE;
1669 *loc = bfd_alloc (abfd, sizeof entry);
1670 if (! *loc)
1671 return FALSE;
1673 entry.gotidx = -1;
1675 memcpy (*loc, &entry, sizeof (entry));
1677 if (h->got.offset != MINUS_ONE)
1678 return TRUE;
1680 /* By setting this to a value other than -1, we are indicating that
1681 there needs to be a GOT entry for H. Avoid using zero, as the
1682 generic ELF copy_indirect_symbol tests for <= 0. */
1683 h->got.offset = 1;
1685 return TRUE;
1688 /* Reserve space in G for a GOT entry containing the value of symbol
1689 SYMNDX in input bfd ABDF, plus ADDEND. */
1690 static bfd_boolean
1691 score_elf_record_local_got_symbol (bfd *abfd,
1692 long symndx,
1693 bfd_vma addend,
1694 struct score_got_info *g)
1696 struct score_got_entry entry, **loc;
1698 entry.abfd = abfd;
1699 entry.symndx = symndx;
1700 entry.d.addend = addend;
1701 loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT);
1703 if (*loc)
1704 return TRUE;
1706 entry.gotidx = g->local_gotno++;
1708 *loc = bfd_alloc (abfd, sizeof(entry));
1709 if (! *loc)
1710 return FALSE;
1712 memcpy (*loc, &entry, sizeof (entry));
1714 return TRUE;
1717 /* Returns the GOT offset at which the indicated address can be found.
1718 If there is not yet a GOT entry for this value, create one.
1719 Returns -1 if no satisfactory GOT offset can be found. */
1720 static bfd_vma
1721 score_elf_local_got_index (bfd *abfd, bfd *ibfd, struct bfd_link_info *info,
1722 bfd_vma value, unsigned long r_symndx,
1723 struct score_elf_link_hash_entry *h, int r_type)
1725 asection *sgot;
1726 struct score_got_info *g;
1727 struct score_got_entry *entry;
1729 g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
1731 entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value,
1732 r_symndx, h, r_type);
1733 if (!entry)
1734 return MINUS_ONE;
1736 else
1737 return entry->gotidx;
1740 /* Returns the GOT index for the global symbol indicated by H. */
1742 static bfd_vma
1743 score_elf_global_got_index (bfd *abfd, struct elf_link_hash_entry *h)
1745 bfd_vma got_index;
1746 asection *sgot;
1747 struct score_got_info *g;
1748 long global_got_dynindx = 0;
1750 g = score_elf_got_info (abfd, &sgot);
1751 if (g->global_gotsym != NULL)
1752 global_got_dynindx = g->global_gotsym->dynindx;
1754 /* Once we determine the global GOT entry with the lowest dynamic
1755 symbol table index, we must put all dynamic symbols with greater
1756 indices into the GOT. That makes it easy to calculate the GOT
1757 offset. */
1758 BFD_ASSERT (h->dynindx >= global_got_dynindx);
1759 got_index = ((h->dynindx - global_got_dynindx + g->local_gotno) * SCORE_ELF_GOT_SIZE (abfd));
1760 BFD_ASSERT (got_index < sgot->size);
1762 return got_index;
1765 /* Returns the offset for the entry at the INDEXth position in the GOT. */
1767 static bfd_vma
1768 score_elf_got_offset_from_index (bfd *dynobj,
1769 bfd *output_bfd,
1770 bfd *input_bfd ATTRIBUTE_UNUSED,
1771 bfd_vma got_index)
1773 asection *sgot;
1774 bfd_vma gp;
1776 score_elf_got_info (dynobj, &sgot);
1777 gp = _bfd_get_gp_value (output_bfd);
1779 return sgot->output_section->vma + sgot->output_offset + got_index - gp;
1782 /* Follow indirect and warning hash entries so that each got entry
1783 points to the final symbol definition. P must point to a pointer
1784 to the hash table we're traversing. Since this traversal may
1785 modify the hash table, we set this pointer to NULL to indicate
1786 we've made a potentially-destructive change to the hash table, so
1787 the traversal must be restarted. */
1788 static int
1789 score_elf_resolve_final_got_entry (void **entryp, void *p)
1791 struct score_got_entry *entry = (struct score_got_entry *)*entryp;
1792 htab_t got_entries = *(htab_t *)p;
1794 if (entry->abfd != NULL && entry->symndx == -1)
1796 struct score_elf_link_hash_entry *h = entry->d.h;
1798 while (h->root.root.type == bfd_link_hash_indirect
1799 || h->root.root.type == bfd_link_hash_warning)
1800 h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link;
1802 if (entry->d.h == h)
1803 return 1;
1805 entry->d.h = h;
1807 /* If we can't find this entry with the new bfd hash, re-insert
1808 it, and get the traversal restarted. */
1809 if (! htab_find (got_entries, entry))
1811 htab_clear_slot (got_entries, entryp);
1812 entryp = htab_find_slot (got_entries, entry, INSERT);
1813 if (! *entryp)
1814 *entryp = entry;
1815 /* Abort the traversal, since the whole table may have
1816 moved, and leave it up to the parent to restart the
1817 process. */
1818 *(htab_t *)p = NULL;
1819 return 0;
1821 /* We might want to decrement the global_gotno count, but it's
1822 either too early or too late for that at this point. */
1825 return 1;
1828 /* Turn indirect got entries in a got_entries table into their final locations. */
1829 static void
1830 score_elf_resolve_final_got_entries (struct score_got_info *g)
1832 htab_t got_entries;
1836 got_entries = g->got_entries;
1838 htab_traverse (got_entries,
1839 score_elf_resolve_final_got_entry,
1840 &got_entries);
1842 while (got_entries == NULL);
1845 /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. for -r */
1846 static void
1847 score_elf_add_to_rel (bfd *abfd,
1848 bfd_byte *address,
1849 reloc_howto_type *howto,
1850 bfd_signed_vma increment)
1852 bfd_signed_vma addend;
1853 bfd_vma contents;
1854 unsigned long offset;
1855 unsigned long r_type = howto->type;
1856 unsigned long hi16_addend, hi16_offset, hi16_value, uvalue;
1858 contents = score_bfd_get_32 (abfd, address);
1859 /* Get the (signed) value from the instruction. */
1860 addend = contents & howto->src_mask;
1861 if (addend & ((howto->src_mask + 1) >> 1))
1863 bfd_signed_vma mask;
1865 mask = -1;
1866 mask &= ~howto->src_mask;
1867 addend |= mask;
1869 /* Add in the increment, (which is a byte value). */
1870 switch (r_type)
1872 case R_SCORE_PC19:
1873 offset =
1874 (((contents & howto->src_mask) & 0x3ff0000) >> 6) | ((contents & howto->src_mask) & 0x3ff);
1875 offset += increment;
1876 contents =
1877 (contents & ~howto->
1878 src_mask) | (((offset << 6) & howto->src_mask) & 0x3ff0000) | (offset & 0x3ff);
1879 score_bfd_put_32 (abfd, contents, address);
1880 break;
1881 case R_SCORE_HI16:
1882 break;
1883 case R_SCORE_LO16:
1884 hi16_addend = score_bfd_get_32 (abfd, address - 4);
1885 hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1;
1886 offset = ((((contents >> 16) & 0x3) << 15) | (contents & 0x7fff)) >> 1;
1887 offset = (hi16_offset << 16) | (offset & 0xffff);
1888 uvalue = increment + offset;
1889 hi16_offset = (uvalue >> 16) << 1;
1890 hi16_value = (hi16_addend & (~(howto->dst_mask)))
1891 | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
1892 score_bfd_put_32 (abfd, hi16_value, address - 4);
1893 offset = (uvalue & 0xffff) << 1;
1894 contents = (contents & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
1895 score_bfd_put_32 (abfd, contents, address);
1896 break;
1897 case R_SCORE_24:
1898 offset =
1899 (((contents & howto->src_mask) >> 1) & 0x1ff8000) | ((contents & howto->src_mask) & 0x7fff);
1900 offset += increment;
1901 contents =
1902 (contents & ~howto->
1903 src_mask) | (((offset << 1) & howto->src_mask) & 0x3ff0000) | (offset & 0x7fff);
1904 score_bfd_put_32 (abfd, contents, address);
1905 break;
1907 case R_SCORE16_11:
1909 contents = score_bfd_get_16 (abfd, address);
1910 offset = contents & howto->src_mask;
1911 offset += increment;
1912 contents = (contents & ~howto->src_mask) | (offset & howto->src_mask);
1913 score_bfd_put_16 (abfd, contents, address);
1915 break;
1916 case R_SCORE16_PC8:
1918 contents = score_bfd_get_16 (abfd, address);
1919 offset = (contents & howto->src_mask) + ((increment >> 1) & 0x1ff);
1920 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1921 score_bfd_put_16 (abfd, contents, address);
1923 break;
1925 case R_SCORE_BCMP:
1926 contents = score_bfd_get_32 (abfd, address);
1927 offset = (contents & howto->src_mask);
1928 offset <<= howto->rightshift;
1929 offset += increment;
1930 offset >>= howto->rightshift;
1931 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1932 score_bfd_put_32 (abfd, contents, address);
1933 break;
1935 case R_SCORE_IMM30:
1936 contents = score_bfd_get_48 (abfd, address);
1937 offset = (contents & howto->src_mask);
1938 offset <<= howto->rightshift;
1939 offset += increment;
1940 offset >>= howto->rightshift;
1941 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1942 score_bfd_put_48 (abfd, contents, address);
1943 break;
1945 case R_SCORE_IMM32:
1946 contents = score_bfd_get_48 (abfd, address);
1947 offset = (contents & howto->src_mask);
1948 offset += increment;
1949 contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask);
1950 score_bfd_put_48 (abfd, contents, address);
1951 break;
1953 default:
1954 addend += increment;
1955 contents = (contents & ~howto->dst_mask) | (addend & howto->dst_mask);
1956 score_bfd_put_32 (abfd, contents, address);
1957 break;
1961 /* Perform a relocation as part of a final link. */
1962 static bfd_reloc_status_type
1963 score_elf_final_link_relocate (reloc_howto_type *howto,
1964 bfd *input_bfd,
1965 bfd *output_bfd,
1966 asection *input_section,
1967 bfd_byte *contents,
1968 Elf_Internal_Rela *rel,
1969 Elf_Internal_Rela *relocs,
1970 bfd_vma symbol,
1971 struct bfd_link_info *info,
1972 const char *sym_name ATTRIBUTE_UNUSED,
1973 int sym_flags ATTRIBUTE_UNUSED,
1974 struct score_elf_link_hash_entry *h,
1975 asection **local_sections,
1976 bfd_boolean gp_disp_p)
1978 unsigned long r_type;
1979 unsigned long r_symndx;
1980 bfd_byte *hit_data = contents + rel->r_offset;
1981 bfd_vma addend;
1982 /* The final GP value to be used for the relocatable, executable, or
1983 shared object file being produced. */
1984 bfd_vma gp = MINUS_ONE;
1985 /* The place (section offset or address) of the storage unit being relocated. */
1986 bfd_vma rel_addr;
1987 /* The offset into the global offset table at which the address of the relocation entry
1988 symbol, adjusted by the addend, resides during execution. */
1989 bfd_vma g = MINUS_ONE;
1990 /* TRUE if the symbol referred to by this relocation is a local symbol. */
1991 bfd_boolean local_p;
1992 /* The eventual value we will relocate. */
1993 bfd_vma value = symbol;
1994 unsigned long hi16_addend, hi16_offset, hi16_value, uvalue, offset, abs_value = 0;
1997 if (elf_gp (output_bfd) == 0)
1999 struct bfd_link_hash_entry *bh;
2000 asection *o;
2002 bh = bfd_link_hash_lookup (info->hash, "_gp", 0, 0, 1);
2003 if (bh != NULL && bh->type == bfd_link_hash_defined)
2004 elf_gp (output_bfd) = (bh->u.def.value
2005 + bh->u.def.section->output_section->vma
2006 + bh->u.def.section->output_offset);
2007 else if (info->relocatable)
2009 bfd_vma lo = -1;
2011 /* Find the GP-relative section with the lowest offset. */
2012 for (o = output_bfd->sections; o != NULL; o = o->next)
2013 if (o->vma < lo)
2014 lo = o->vma;
2015 /* And calculate GP relative to that. */
2016 elf_gp (output_bfd) = lo + ELF_SCORE_GP_OFFSET (input_bfd);
2018 else
2020 /* If the relocate_section function needs to do a reloc
2021 involving the GP value, it should make a reloc_dangerous
2022 callback to warn that GP is not defined. */
2026 /* Parse the relocation. */
2027 r_symndx = ELF32_R_SYM (rel->r_info);
2028 r_type = ELF32_R_TYPE (rel->r_info);
2029 rel_addr = (input_section->output_section->vma + input_section->output_offset + rel->r_offset);
2030 local_p = score_elf_local_relocation_p (input_bfd, rel, local_sections, TRUE);
2032 if (r_type == R_SCORE_GOT15)
2034 const Elf_Internal_Rela *relend;
2035 const Elf_Internal_Rela *lo16_rel;
2036 const struct elf_backend_data *bed;
2037 bfd_vma lo_value = 0;
2039 bed = get_elf_backend_data (output_bfd);
2040 relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
2041 lo16_rel = score_elf_next_relocation (input_bfd, R_SCORE_GOT_LO16, rel, relend);
2042 if ((local_p) && (lo16_rel != NULL))
2044 bfd_vma tmp = 0;
2045 tmp = score_bfd_get_32 (input_bfd, contents + lo16_rel->r_offset);
2046 lo_value = (((tmp >> 16) & 0x3) << 14) | ((tmp & 0x7fff) >> 1);
2048 addend = lo_value;
2050 /* For score3 R_SCORE_ABS32. */
2051 else if (r_type == R_SCORE_ABS32 || r_type == R_SCORE_REL32)
2053 addend = (bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask;
2055 else
2057 addend = (score_bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask;
2060 /* If we haven't already determined the GOT offset, or the GP value,
2061 and we're going to need it, get it now. */
2062 switch (r_type)
2064 case R_SCORE_CALL15:
2065 case R_SCORE_GOT15:
2066 if (!local_p)
2068 g = score_elf_global_got_index (elf_hash_table (info)->dynobj,
2069 (struct elf_link_hash_entry *) h);
2070 if ((! elf_hash_table (info)->dynamic_sections_created
2071 || (info->shared
2072 && (info->symbolic || h->root.dynindx == -1)
2073 && h->root.def_regular)))
2075 /* This is a static link or a -Bsymbolic link. The
2076 symbol is defined locally, or was forced to be local.
2077 We must initialize this entry in the GOT. */
2078 bfd *tmpbfd = elf_hash_table (info)->dynobj;
2079 asection *sgot = score_elf_got_section (tmpbfd, FALSE);
2080 score_bfd_put_32 (tmpbfd, value, sgot->contents + g);
2083 else if (r_type == R_SCORE_GOT15 || r_type == R_SCORE_CALL15)
2085 /* There's no need to create a local GOT entry here; the
2086 calculation for a local GOT15 entry does not involve G. */
2089 else
2091 g = score_elf_local_got_index (output_bfd, input_bfd, info,
2092 symbol + addend, r_symndx, h, r_type);
2093 if (g == MINUS_ONE)
2094 return bfd_reloc_outofrange;
2097 /* Convert GOT indices to actual offsets. */
2098 g = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
2099 output_bfd, input_bfd, g);
2100 break;
2102 case R_SCORE_HI16:
2103 case R_SCORE_LO16:
2104 case R_SCORE_GPREL32:
2105 gp = _bfd_get_gp_value (output_bfd);
2106 break;
2108 case R_SCORE_GP15:
2109 gp = _bfd_get_gp_value (output_bfd);
2111 default:
2112 break;
2115 switch (r_type)
2117 case R_SCORE_NONE:
2118 return bfd_reloc_ok;
2120 case R_SCORE_ABS32:
2121 case R_SCORE_REL32:
2122 if ((info->shared
2123 || (elf_hash_table (info)->dynamic_sections_created
2124 && h != NULL
2125 && h->root.def_dynamic
2126 && !h->root.def_regular))
2127 && r_symndx != STN_UNDEF
2128 && (input_section->flags & SEC_ALLOC) != 0)
2130 /* If we're creating a shared library, or this relocation is against a symbol
2131 in a shared library, then we can't know where the symbol will end up.
2132 So, we create a relocation record in the output, and leave the job up
2133 to the dynamic linker. */
2134 value = addend;
2135 if (!score_elf_create_dynamic_relocation (output_bfd, info, rel, h,
2136 symbol, &value,
2137 input_section))
2138 return bfd_reloc_undefined;
2140 else if (r_symndx == STN_UNDEF)
2141 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
2142 from removed linkonce sections, or sections discarded by
2143 a linker script. */
2144 value = 0;
2145 else
2147 if (r_type != R_SCORE_REL32)
2148 value = symbol + addend;
2149 else
2150 value = addend;
2152 value &= howto->dst_mask;
2153 bfd_put_32 (input_bfd, value, hit_data);
2154 return bfd_reloc_ok;
2156 case R_SCORE_ABS16:
2157 value += addend;
2158 if ((long)value > 0x7fff || (long)value < -0x8000)
2159 return bfd_reloc_overflow;
2160 score_bfd_put_16 (input_bfd, value, hit_data);
2161 return bfd_reloc_ok;
2163 case R_SCORE_24:
2164 addend = score_bfd_get_32 (input_bfd, hit_data);
2165 offset = (((addend & howto->src_mask) >> 1) & 0x1ff8000) | ((addend & howto->src_mask) & 0x7fff);
2166 if ((offset & 0x1000000) != 0)
2167 offset |= 0xfe000000;
2168 value += offset;
2169 abs_value = abs (value - rel_addr);
2170 if ((abs_value & 0xfe000000) != 0)
2171 return bfd_reloc_overflow;
2172 addend = (addend & ~howto->src_mask)
2173 | (((value << 1) & howto->src_mask) & 0x3ff0000) | (value & 0x7fff);
2174 score_bfd_put_32 (input_bfd, addend, hit_data);
2175 return bfd_reloc_ok;
2177 /* signed imm32. */
2178 case R_SCORE_IMM30:
2180 int not_word_align_p = 0;
2181 bfd_vma imm_offset = 0;
2182 addend = score_bfd_get_48 (input_bfd, hit_data);
2183 imm_offset = ((addend >> 7) & 0xff)
2184 | (((addend >> 16) & 0x7fff) << 8)
2185 | (((addend >> 32) & 0x7f) << 23);
2186 imm_offset <<= howto->rightshift;
2187 value += imm_offset;
2188 value &= 0xffffffff;
2190 /* Check lw48/sw48 rd, value/label word align. */
2191 if ((value & 0x3) != 0)
2192 not_word_align_p = 1;
2194 value >>= howto->rightshift;
2195 addend = (addend & ~howto->src_mask)
2196 | (((value & 0xff) >> 0) << 7)
2197 | (((value & 0x7fff00) >> 8) << 16)
2198 | (((value & 0x3f800000) >> 23) << 32);
2199 score_bfd_put_48 (input_bfd, addend, hit_data);
2200 if (not_word_align_p)
2201 return bfd_reloc_other;
2202 else
2203 return bfd_reloc_ok;
2206 case R_SCORE_IMM32:
2208 bfd_vma imm_offset = 0;
2209 addend = score_bfd_get_48 (input_bfd, hit_data);
2210 imm_offset = ((addend >> 5) & 0x3ff)
2211 | (((addend >> 16) & 0x7fff) << 10)
2212 | (((addend >> 32) & 0x7f) << 25);
2213 value += imm_offset;
2214 value &= 0xffffffff;
2215 addend = (addend & ~howto->src_mask)
2216 | ((value & 0x3ff) << 5)
2217 | (((value >> 10) & 0x7fff) << 16)
2218 | (((value >> 25) & 0x7f) << 32);
2219 score_bfd_put_48 (input_bfd, addend, hit_data);
2220 return bfd_reloc_ok;
2223 case R_SCORE_PC19:
2224 addend = score_bfd_get_32 (input_bfd, hit_data);
2225 offset = (((addend & howto->src_mask) & 0x3ff0000) >> 6) | ((addend & howto->src_mask) & 0x3ff);
2226 if ((offset & 0x80000) != 0)
2227 offset |= 0xfff00000;
2228 abs_value = value = value - rel_addr + offset;
2229 /* exceed 20 bit : overflow. */
2230 if ((abs_value & 0x80000000) == 0x80000000)
2231 abs_value = 0xffffffff - value + 1;
2232 if ((abs_value & 0xfff80000) != 0)
2233 return bfd_reloc_overflow;
2234 addend = (addend & ~howto->src_mask)
2235 | (((value << 6) & howto->src_mask) & 0x3ff0000) | (value & 0x3ff);
2236 score_bfd_put_32 (input_bfd, addend, hit_data);
2237 return bfd_reloc_ok;
2239 case R_SCORE16_11:
2240 addend = score_bfd_get_16 (input_bfd, hit_data);
2241 offset = addend & howto->src_mask;
2242 if ((offset & 0x800) != 0) /* Offset is negative. */
2243 offset |= 0xfffff000;
2244 value += offset;
2245 abs_value = abs (value - rel_addr);
2246 if ((abs_value & 0xfffff000) != 0)
2247 return bfd_reloc_overflow;
2248 addend = (addend & ~howto->src_mask) | (value & howto->src_mask);
2249 score_bfd_put_16 (input_bfd, addend, hit_data);
2250 return bfd_reloc_ok;
2252 case R_SCORE16_PC8:
2253 addend = score_bfd_get_16 (input_bfd, hit_data);
2254 offset = (addend & howto->src_mask) << 1;
2255 if ((offset & 0x200) != 0) /* Offset is negative. */
2256 offset |= 0xfffffe00;
2257 abs_value = value = value - rel_addr + offset;
2258 /* Sign bit + exceed 9 bit. */
2259 if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00))
2260 return bfd_reloc_overflow;
2261 value >>= 1;
2262 addend = (addend & ~howto->src_mask) | (value & howto->src_mask);
2263 score_bfd_put_16 (input_bfd, addend, hit_data);
2264 return bfd_reloc_ok;
2266 case R_SCORE_BCMP:
2267 addend = score_bfd_get_32 (input_bfd, hit_data);
2268 offset = (addend & howto->src_mask) << howto->rightshift;
2269 if ((offset & 0x200) != 0) /* Offset is negative. */
2270 offset |= 0xfffffe00;
2271 value = value - rel_addr + offset;
2272 /* Sign bit + exceed 9 bit. */
2273 if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00))
2274 return bfd_reloc_overflow;
2275 value >>= howto->rightshift;
2276 addend = (addend & ~howto->src_mask)
2277 | (value & 0x1)
2278 | (((value >> 1) & 0x7) << 7)
2279 | (((value >> 4) & 0x1f) << 21);
2280 score_bfd_put_32 (input_bfd, addend, hit_data);
2281 return bfd_reloc_ok;
2283 case R_SCORE_HI16:
2284 return bfd_reloc_ok;
2286 case R_SCORE_LO16:
2287 hi16_addend = score_bfd_get_32 (input_bfd, hit_data - 4);
2288 hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1;
2289 addend = score_bfd_get_32 (input_bfd, hit_data);
2290 offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1;
2291 offset = (hi16_offset << 16) | (offset & 0xffff);
2293 if (!gp_disp_p)
2294 uvalue = value + offset;
2295 else
2296 uvalue = offset + gp - rel_addr + 4;
2298 hi16_offset = (uvalue >> 16) << 1;
2299 hi16_value = (hi16_addend & (~(howto->dst_mask)))
2300 | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
2301 score_bfd_put_32 (input_bfd, hi16_value, hit_data - 4);
2302 offset = (uvalue & 0xffff) << 1;
2303 value = (addend & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000);
2304 score_bfd_put_32 (input_bfd, value, hit_data);
2305 return bfd_reloc_ok;
2307 case R_SCORE_GP15:
2308 addend = score_bfd_get_32 (input_bfd, hit_data);
2309 offset = addend & 0x7fff;
2310 if ((offset & 0x4000) == 0x4000)
2311 offset |= 0xffffc000;
2312 value = value + offset - gp;
2313 if (((value & 0xffffc000) != 0) && ((value & 0xffffc000) != 0xffffc000))
2314 return bfd_reloc_overflow;
2315 value = (addend & ~howto->src_mask) | (value & howto->src_mask);
2316 score_bfd_put_32 (input_bfd, value, hit_data);
2317 return bfd_reloc_ok;
2319 case R_SCORE_GOT15:
2320 case R_SCORE_CALL15:
2321 if (local_p)
2323 bfd_boolean forced;
2325 /* The special case is when the symbol is forced to be local. We need the
2326 full address in the GOT since no R_SCORE_GOT_LO16 relocation follows. */
2327 forced = ! score_elf_local_relocation_p (input_bfd, rel,
2328 local_sections, FALSE);
2329 value = score_elf_got16_entry (output_bfd, input_bfd, info,
2330 symbol + addend, forced);
2331 if (value == MINUS_ONE)
2332 return bfd_reloc_outofrange;
2333 value = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
2334 output_bfd, input_bfd, value);
2336 else
2338 value = g;
2341 if ((long) value > 0x3fff || (long) value < -0x4000)
2342 return bfd_reloc_overflow;
2344 addend = score_bfd_get_32 (input_bfd, hit_data);
2345 value = (addend & ~howto->dst_mask) | (value & howto->dst_mask);
2346 score_bfd_put_32 (input_bfd, value, hit_data);
2347 return bfd_reloc_ok;
2349 case R_SCORE_GPREL32:
2350 value = (addend + symbol - gp);
2351 value &= howto->dst_mask;
2352 score_bfd_put_32 (input_bfd, value, hit_data);
2353 return bfd_reloc_ok;
2355 case R_SCORE_GOT_LO16:
2356 addend = score_bfd_get_32 (input_bfd, hit_data);
2357 value = (((addend >> 16) & 0x3) << 14) | ((addend & 0x7fff) >> 1);
2358 value += symbol;
2359 value = (addend & (~(howto->dst_mask))) | ((value & 0x3fff) << 1)
2360 | (((value >> 14) & 0x3) << 16);
2362 score_bfd_put_32 (input_bfd, value, hit_data);
2363 return bfd_reloc_ok;
2365 case R_SCORE_DUMMY_HI16:
2366 return bfd_reloc_ok;
2368 case R_SCORE_GNU_VTINHERIT:
2369 case R_SCORE_GNU_VTENTRY:
2370 /* We don't do anything with these at present. */
2371 return bfd_reloc_continue;
2373 default:
2374 return bfd_reloc_notsupported;
2378 /* Score backend functions. */
2379 static void
2380 s3_bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2381 arelent *bfd_reloc,
2382 Elf_Internal_Rela *elf_reloc)
2384 unsigned int r_type;
2386 r_type = ELF32_R_TYPE (elf_reloc->r_info);
2387 if (r_type >= ARRAY_SIZE (elf32_score_howto_table))
2388 bfd_reloc->howto = NULL;
2389 else
2390 bfd_reloc->howto = &elf32_score_howto_table[r_type];
2393 /* Relocate an score ELF section. */
2394 static bfd_boolean
2395 s3_bfd_score_elf_relocate_section (bfd *output_bfd,
2396 struct bfd_link_info *info,
2397 bfd *input_bfd,
2398 asection *input_section,
2399 bfd_byte *contents,
2400 Elf_Internal_Rela *relocs,
2401 Elf_Internal_Sym *local_syms,
2402 asection **local_sections)
2404 Elf_Internal_Shdr *symtab_hdr;
2405 Elf_Internal_Rela *rel;
2406 Elf_Internal_Rela *relend;
2407 const char *name;
2408 unsigned long offset;
2409 unsigned long hi16_addend, hi16_offset, hi16_value, uvalue;
2410 size_t extsymoff;
2411 bfd_boolean gp_disp_p = FALSE;
2413 /* Sort dynsym. */
2414 if (elf_hash_table (info)->dynamic_sections_created)
2416 bfd_size_type dynsecsymcount = 0;
2417 if (info->shared)
2419 asection * p;
2420 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
2422 for (p = output_bfd->sections; p ; p = p->next)
2423 if ((p->flags & SEC_EXCLUDE) == 0
2424 && (p->flags & SEC_ALLOC) != 0
2425 && !(*bed->elf_backend_omit_section_dynsym) (output_bfd, info, p))
2426 ++ dynsecsymcount;
2429 if (!score_elf_sort_hash_table (info, dynsecsymcount + 1))
2430 return FALSE;
2433 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2434 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
2435 rel = relocs;
2436 relend = relocs + input_section->reloc_count;
2437 for (; rel < relend; rel++)
2439 int r_type;
2440 reloc_howto_type *howto;
2441 unsigned long r_symndx;
2442 Elf_Internal_Sym *sym;
2443 asection *sec;
2444 struct score_elf_link_hash_entry *h;
2445 bfd_vma relocation = 0;
2446 bfd_reloc_status_type r;
2447 arelent bfd_reloc;
2449 r_symndx = ELF32_R_SYM (rel->r_info);
2450 r_type = ELF32_R_TYPE (rel->r_info);
2452 s3_bfd_score_info_to_howto (input_bfd, &bfd_reloc, (Elf_Internal_Rela *) rel);
2453 howto = bfd_reloc.howto;
2455 h = NULL;
2456 sym = NULL;
2457 sec = NULL;
2459 if (r_symndx < extsymoff)
2461 sym = local_syms + r_symndx;
2462 sec = local_sections[r_symndx];
2463 relocation = (sec->output_section->vma
2464 + sec->output_offset
2465 + sym->st_value);
2466 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
2468 if (!info->relocatable
2469 && (sec->flags & SEC_MERGE)
2470 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2472 asection *msec;
2473 bfd_vma addend, value;
2475 switch (r_type)
2477 case R_SCORE_HI16:
2478 break;
2479 case R_SCORE_LO16:
2480 hi16_addend = score_bfd_get_32 (input_bfd, contents + rel->r_offset - 4);
2481 hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1;
2482 value = score_bfd_get_32 (input_bfd, contents + rel->r_offset);
2483 offset = ((((value >> 16) & 0x3) << 15) | (value & 0x7fff)) >> 1;
2484 addend = (hi16_offset << 16) | (offset & 0xffff);
2485 msec = sec;
2486 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
2487 addend -= relocation;
2488 addend += msec->output_section->vma + msec->output_offset;
2489 uvalue = addend;
2490 hi16_offset = (uvalue >> 16) << 1;
2491 hi16_value = (hi16_addend & (~(howto->dst_mask)))
2492 | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000);
2493 score_bfd_put_32 (input_bfd, hi16_value, contents + rel->r_offset - 4);
2494 offset = (uvalue & 0xffff) << 1;
2495 value = (value & (~(howto->dst_mask)))
2496 | (offset & 0x7fff) | ((offset << 1) & 0x30000);
2497 score_bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2498 break;
2500 case R_SCORE_IMM32:
2502 value = score_bfd_get_48 (input_bfd, contents + rel->r_offset);
2503 addend = ((value >> 5) & 0x3ff)
2504 | (((value >> 16) & 0x7fff) << 10)
2505 | (((value >> 32) & 0x7f) << 25);
2506 msec = sec;
2507 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
2508 addend -= relocation;
2509 addend += msec->output_section->vma + msec->output_offset;
2510 addend &= 0xffffffff;
2511 value = (value & ~howto->src_mask)
2512 | ((addend & 0x3ff) << 5)
2513 | (((addend >> 10) & 0x7fff) << 16)
2514 | (((addend >> 25) & 0x7f) << 32);
2515 score_bfd_put_48 (input_bfd, value, contents + rel->r_offset);
2516 break;
2519 case R_SCORE_IMM30:
2521 int not_word_align_p = 0;
2522 value = score_bfd_get_48 (input_bfd, contents + rel->r_offset);
2523 addend = ((value >> 7) & 0xff)
2524 | (((value >> 16) & 0x7fff) << 8)
2525 | (((value >> 32) & 0x7f) << 23);
2526 addend <<= howto->rightshift;
2527 msec = sec;
2528 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
2529 addend -= relocation;
2530 addend += msec->output_section->vma + msec->output_offset;
2531 addend &= 0xffffffff;
2533 /* Check lw48/sw48 rd, value/label word align. */
2534 if ((addend & 0x3) != 0)
2535 not_word_align_p = 1;
2537 addend >>= howto->rightshift;
2538 value = (value & ~howto->src_mask)
2539 | (((addend & 0xff) >> 0) << 7)
2540 | (((addend & 0x7fff00) >> 8) << 16)
2541 | (((addend & 0x3f800000) >> 23) << 32);
2542 score_bfd_put_48 (input_bfd, value, contents + rel->r_offset);
2544 if (not_word_align_p)
2545 return bfd_reloc_other;
2546 else
2547 break;
2550 case R_SCORE_GOT_LO16:
2551 value = score_bfd_get_32 (input_bfd, contents + rel->r_offset);
2552 addend = (((value >> 16) & 0x3) << 14) | ((value & 0x7fff) >> 1);
2553 msec = sec;
2554 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation;
2555 addend += msec->output_section->vma + msec->output_offset;
2556 value = (value & (~(howto->dst_mask))) | ((addend & 0x3fff) << 1)
2557 | (((addend >> 14) & 0x3) << 16);
2559 score_bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2560 break;
2562 case R_SCORE_ABS32:
2563 case R_SCORE_REL32:
2564 value = bfd_get_32 (input_bfd, contents + rel->r_offset);
2565 /* Get the (signed) value from the instruction. */
2566 addend = value & howto->src_mask;
2567 if (addend & ((howto->src_mask + 1) >> 1))
2569 bfd_signed_vma mask;
2571 mask = -1;
2572 mask &= ~howto->src_mask;
2573 addend |= mask;
2575 msec = sec;
2576 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation;
2577 addend += msec->output_section->vma + msec->output_offset;
2578 value = (value & ~howto->dst_mask) | (addend & howto->dst_mask);
2579 bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2580 break;
2582 default:
2583 value = score_bfd_get_32 (input_bfd, contents + rel->r_offset);
2584 /* Get the (signed) value from the instruction. */
2585 addend = value & howto->src_mask;
2586 if (addend & ((howto->src_mask + 1) >> 1))
2588 bfd_signed_vma mask;
2590 mask = -1;
2591 mask &= ~howto->src_mask;
2592 addend |= mask;
2594 msec = sec;
2595 addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation;
2596 addend += msec->output_section->vma + msec->output_offset;
2597 value = (value & ~howto->dst_mask) | (addend & howto->dst_mask);
2598 score_bfd_put_32 (input_bfd, value, contents + rel->r_offset);
2599 break;
2603 else
2605 /* For global symbols we look up the symbol in the hash-table. */
2606 h = ((struct score_elf_link_hash_entry *)
2607 elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
2608 /* Find the real hash-table entry for this symbol. */
2609 while (h->root.root.type == bfd_link_hash_indirect
2610 || h->root.root.type == bfd_link_hash_warning)
2611 h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link;
2613 /* Record the name of this symbol, for our caller. */
2614 name = h->root.root.root.string;
2616 /* See if this is the special GP_DISP_LABEL symbol. Note that such a
2617 symbol must always be a global symbol. */
2618 if (strcmp (name, GP_DISP_LABEL) == 0)
2620 /* Relocations against GP_DISP_LABEL are permitted only with
2621 R_SCORE_HI16 and R_SCORE_LO16 relocations. */
2622 if (r_type != R_SCORE_HI16 && r_type != R_SCORE_LO16)
2623 return bfd_reloc_notsupported;
2625 gp_disp_p = TRUE;
2628 /* If this symbol is defined, calculate its address. Note that
2629 GP_DISP_LABEL is a magic symbol, always implicitly defined by the
2630 linker, so it's inappropriate to check to see whether or not
2631 its defined. */
2632 else if ((h->root.root.type == bfd_link_hash_defined
2633 || h->root.root.type == bfd_link_hash_defweak)
2634 && h->root.root.u.def.section)
2636 sec = h->root.root.u.def.section;
2637 if (sec->output_section)
2638 relocation = (h->root.root.u.def.value
2639 + sec->output_section->vma
2640 + sec->output_offset);
2641 else
2643 relocation = h->root.root.u.def.value;
2646 else if (h->root.root.type == bfd_link_hash_undefweak)
2647 /* We allow relocations against undefined weak symbols, giving
2648 it the value zero, so that you can undefined weak functions
2649 and check to see if they exist by looking at their addresses. */
2650 relocation = 0;
2651 else if (info->unresolved_syms_in_objects == RM_IGNORE
2652 && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
2653 relocation = 0;
2654 else if (strcmp (name, "_DYNAMIC_LINK") == 0)
2656 /* If this is a dynamic link, we should have created a _DYNAMIC_LINK symbol
2657 in s3_bfd_score_elf_create_dynamic_sections. Otherwise, we should define
2658 the symbol with a value of 0. */
2659 BFD_ASSERT (! info->shared);
2660 BFD_ASSERT (bfd_get_section_by_name (output_bfd, ".dynamic") == NULL);
2661 relocation = 0;
2663 else if (!info->relocatable)
2665 if (! ((*info->callbacks->undefined_symbol)
2666 (info, h->root.root.root.string, input_bfd,
2667 input_section, rel->r_offset,
2668 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR)
2669 || ELF_ST_VISIBILITY (h->root.other))))
2670 return bfd_reloc_undefined;
2671 relocation = 0;
2675 if (sec != NULL && elf_discarded_section (sec))
2676 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2677 rel, relend, howto, contents);
2679 if (info->relocatable)
2681 /* This is a relocatable link. We don't have to change
2682 anything, unless the reloc is against a section symbol,
2683 in which case we have to adjust according to where the
2684 section symbol winds up in the output section. */
2685 if (r_symndx < symtab_hdr->sh_info)
2687 sym = local_syms + r_symndx;
2688 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2690 sec = local_sections[r_symndx];
2691 score_elf_add_to_rel (input_bfd, contents + rel->r_offset,
2692 howto, (bfd_signed_vma) (sec->output_offset + sym->st_value));
2695 continue;
2698 /* This is a final link. */
2699 r = score_elf_final_link_relocate (howto, input_bfd, output_bfd,
2700 input_section, contents, rel, relocs,
2701 relocation, info, name,
2702 (h ? ELF_ST_TYPE ((unsigned int)h->root.root.type) :
2703 ELF_ST_TYPE ((unsigned int)sym->st_info)), h, local_sections,
2704 gp_disp_p);
2706 if (r != bfd_reloc_ok)
2708 const char *msg = (const char *)0;
2710 switch (r)
2712 case bfd_reloc_overflow:
2713 /* If the overflowing reloc was to an undefined symbol,
2714 we have already printed one error message and there
2715 is no point complaining again. */
2716 if (((!h) || (h->root.root.type != bfd_link_hash_undefined))
2717 && (!((*info->callbacks->reloc_overflow)
2718 (info, NULL, name, howto->name, (bfd_vma) 0,
2719 input_bfd, input_section, rel->r_offset))))
2720 return FALSE;
2721 break;
2722 case bfd_reloc_undefined:
2723 if (!((*info->callbacks->undefined_symbol)
2724 (info, name, input_bfd, input_section, rel->r_offset, TRUE)))
2725 return FALSE;
2726 break;
2728 case bfd_reloc_outofrange:
2729 msg = _("internal error: out of range error");
2730 goto common_error;
2732 case bfd_reloc_notsupported:
2733 msg = _("internal error: unsupported relocation error");
2734 goto common_error;
2736 case bfd_reloc_dangerous:
2737 msg = _("internal error: dangerous error");
2738 goto common_error;
2740 /* Use bfd_reloc_other to check lw48, sw48 word align. */
2741 case bfd_reloc_other:
2742 msg = _("address not word align");
2743 goto common_error;
2745 default:
2746 msg = _("internal error: unknown error");
2747 /* fall through */
2749 common_error:
2750 if (!((*info->callbacks->warning)
2751 (info, msg, name, input_bfd, input_section, rel->r_offset)))
2752 return FALSE;
2753 break;
2758 return TRUE;
2761 /* Look through the relocs for a section during the first phase, and
2762 allocate space in the global offset table. */
2763 static bfd_boolean
2764 s3_bfd_score_elf_check_relocs (bfd *abfd,
2765 struct bfd_link_info *info,
2766 asection *sec,
2767 const Elf_Internal_Rela *relocs)
2769 const char *name;
2770 bfd *dynobj;
2771 Elf_Internal_Shdr *symtab_hdr;
2772 struct elf_link_hash_entry **sym_hashes;
2773 struct score_got_info *g;
2774 size_t extsymoff;
2775 const Elf_Internal_Rela *rel;
2776 const Elf_Internal_Rela *rel_end;
2777 asection *sgot;
2778 asection *sreloc;
2779 const struct elf_backend_data *bed;
2781 if (info->relocatable)
2782 return TRUE;
2784 dynobj = elf_hash_table (info)->dynobj;
2785 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2786 sym_hashes = elf_sym_hashes (abfd);
2787 extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
2789 name = bfd_get_section_name (abfd, sec);
2791 if (dynobj == NULL)
2793 sgot = NULL;
2794 g = NULL;
2796 else
2798 sgot = score_elf_got_section (dynobj, FALSE);
2799 if (sgot == NULL)
2800 g = NULL;
2801 else
2803 BFD_ASSERT (score_elf_section_data (sgot) != NULL);
2804 g = score_elf_section_data (sgot)->u.got_info;
2805 BFD_ASSERT (g != NULL);
2809 sreloc = NULL;
2810 bed = get_elf_backend_data (abfd);
2811 rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
2812 for (rel = relocs; rel < rel_end; ++rel)
2814 unsigned long r_symndx;
2815 unsigned int r_type;
2816 struct elf_link_hash_entry *h;
2818 r_symndx = ELF32_R_SYM (rel->r_info);
2819 r_type = ELF32_R_TYPE (rel->r_info);
2821 if (r_symndx < extsymoff)
2823 h = NULL;
2825 else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr))
2827 (*_bfd_error_handler) (_("%s: Malformed reloc detected for section %s"), abfd, name);
2828 bfd_set_error (bfd_error_bad_value);
2829 return FALSE;
2831 else
2833 h = sym_hashes[r_symndx - extsymoff];
2835 /* This may be an indirect symbol created because of a version. */
2836 if (h != NULL)
2838 while (h->root.type == bfd_link_hash_indirect)
2839 h = (struct elf_link_hash_entry *)h->root.u.i.link;
2843 /* Some relocs require a global offset table. */
2844 if (dynobj == NULL || sgot == NULL)
2846 switch (r_type)
2848 case R_SCORE_GOT15:
2849 case R_SCORE_CALL15:
2850 if (dynobj == NULL)
2851 elf_hash_table (info)->dynobj = dynobj = abfd;
2852 if (!score_elf_create_got_section (dynobj, info, FALSE))
2853 return FALSE;
2854 g = score_elf_got_info (dynobj, &sgot);
2855 break;
2856 case R_SCORE_ABS32:
2857 case R_SCORE_REL32:
2858 if (dynobj == NULL && (info->shared || h != NULL) && (sec->flags & SEC_ALLOC) != 0)
2859 elf_hash_table (info)->dynobj = dynobj = abfd;
2860 break;
2861 default:
2862 break;
2866 if (!h && (r_type == R_SCORE_GOT_LO16))
2868 if (! score_elf_record_local_got_symbol (abfd, r_symndx, rel->r_addend, g))
2869 return FALSE;
2872 switch (r_type)
2874 case R_SCORE_CALL15:
2875 if (h == NULL)
2877 (*_bfd_error_handler)
2878 (_("%B: CALL15 reloc at 0x%lx not against global symbol"),
2879 abfd, (unsigned long) rel->r_offset);
2880 bfd_set_error (bfd_error_bad_value);
2881 return FALSE;
2883 else
2885 /* This symbol requires a global offset table entry. */
2886 if (! score_elf_record_global_got_symbol (h, abfd, info, g))
2887 return FALSE;
2889 /* We need a stub, not a plt entry for the undefined function. But we record
2890 it as if it needs plt. See _bfd_elf_adjust_dynamic_symbol. */
2891 h->needs_plt = 1;
2892 h->type = STT_FUNC;
2894 break;
2895 case R_SCORE_GOT15:
2896 if (h && ! score_elf_record_global_got_symbol (h, abfd, info, g))
2897 return FALSE;
2898 break;
2899 case R_SCORE_ABS32:
2900 case R_SCORE_REL32:
2901 if ((info->shared || h != NULL) && (sec->flags & SEC_ALLOC) != 0)
2903 if (sreloc == NULL)
2905 sreloc = score_elf_rel_dyn_section (dynobj, TRUE);
2906 if (sreloc == NULL)
2907 return FALSE;
2909 #define SCORE_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
2910 if (info->shared)
2912 /* When creating a shared object, we must copy these reloc types into
2913 the output file as R_SCORE_REL32 relocs. We make room for this reloc
2914 in the .rel.dyn reloc section. */
2915 score_elf_allocate_dynamic_relocations (dynobj, 1);
2916 if ((sec->flags & SCORE_READONLY_SECTION)
2917 == SCORE_READONLY_SECTION)
2918 /* We tell the dynamic linker that there are
2919 relocations against the text segment. */
2920 info->flags |= DF_TEXTREL;
2922 else
2924 struct score_elf_link_hash_entry *hscore;
2926 /* We only need to copy this reloc if the symbol is
2927 defined in a dynamic object. */
2928 hscore = (struct score_elf_link_hash_entry *)h;
2929 ++hscore->possibly_dynamic_relocs;
2930 if ((sec->flags & SCORE_READONLY_SECTION)
2931 == SCORE_READONLY_SECTION)
2932 /* We need it to tell the dynamic linker if there
2933 are relocations against the text segment. */
2934 hscore->readonly_reloc = TRUE;
2937 /* Even though we don't directly need a GOT entry for this symbol,
2938 a symbol must have a dynamic symbol table index greater that
2939 DT_SCORE_GOTSYM if there are dynamic relocations against it. */
2940 if (h != NULL)
2942 if (dynobj == NULL)
2943 elf_hash_table (info)->dynobj = dynobj = abfd;
2944 if (! score_elf_create_got_section (dynobj, info, TRUE))
2945 return FALSE;
2946 g = score_elf_got_info (dynobj, &sgot);
2947 if (! score_elf_record_global_got_symbol (h, abfd, info, g))
2948 return FALSE;
2951 break;
2953 /* This relocation describes the C++ object vtable hierarchy.
2954 Reconstruct it for later use during GC. */
2955 case R_SCORE_GNU_VTINHERIT:
2956 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2957 return FALSE;
2958 break;
2960 /* This relocation describes which C++ vtable entries are actually
2961 used. Record for later use during GC. */
2962 case R_SCORE_GNU_VTENTRY:
2963 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
2964 return FALSE;
2965 break;
2966 default:
2967 break;
2970 /* We must not create a stub for a symbol that has relocations
2971 related to taking the function's address. */
2972 switch (r_type)
2974 default:
2975 if (h != NULL)
2977 struct score_elf_link_hash_entry *sh;
2979 sh = (struct score_elf_link_hash_entry *) h;
2980 sh->no_fn_stub = TRUE;
2982 break;
2983 case R_SCORE_CALL15:
2984 break;
2988 return TRUE;
2991 static bfd_boolean
2992 s3_bfd_score_elf_add_symbol_hook (bfd *abfd,
2993 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2994 Elf_Internal_Sym *sym,
2995 const char **namep ATTRIBUTE_UNUSED,
2996 flagword *flagsp ATTRIBUTE_UNUSED,
2997 asection **secp,
2998 bfd_vma *valp)
3000 switch (sym->st_shndx)
3002 case SHN_COMMON:
3003 if (sym->st_size > elf_gp_size (abfd))
3004 break;
3005 /* Fall through. */
3006 case SHN_SCORE_SCOMMON:
3007 *secp = bfd_make_section_old_way (abfd, ".scommon");
3008 (*secp)->flags |= SEC_IS_COMMON;
3009 *valp = sym->st_size;
3010 break;
3013 return TRUE;
3016 static void
3017 s3_bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym)
3019 elf_symbol_type *elfsym;
3021 elfsym = (elf_symbol_type *) asym;
3022 switch (elfsym->internal_elf_sym.st_shndx)
3024 case SHN_COMMON:
3025 if (asym->value > elf_gp_size (abfd))
3026 break;
3027 /* Fall through. */
3028 case SHN_SCORE_SCOMMON:
3029 if (score_elf_scom_section.name == NULL)
3031 /* Initialize the small common section. */
3032 score_elf_scom_section.name = ".scommon";
3033 score_elf_scom_section.flags = SEC_IS_COMMON;
3034 score_elf_scom_section.output_section = &score_elf_scom_section;
3035 score_elf_scom_section.symbol = &score_elf_scom_symbol;
3036 score_elf_scom_section.symbol_ptr_ptr = &score_elf_scom_symbol_ptr;
3037 score_elf_scom_symbol.name = ".scommon";
3038 score_elf_scom_symbol.flags = BSF_SECTION_SYM;
3039 score_elf_scom_symbol.section = &score_elf_scom_section;
3040 score_elf_scom_symbol_ptr = &score_elf_scom_symbol;
3042 asym->section = &score_elf_scom_section;
3043 asym->value = elfsym->internal_elf_sym.st_size;
3044 break;
3048 static int
3049 s3_bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3050 const char *name ATTRIBUTE_UNUSED,
3051 Elf_Internal_Sym *sym,
3052 asection *input_sec,
3053 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3055 /* If we see a common symbol, which implies a relocatable link, then
3056 if a symbol was small common in an input file, mark it as small
3057 common in the output file. */
3058 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3059 sym->st_shndx = SHN_SCORE_SCOMMON;
3061 return 1;
3064 static bfd_boolean
3065 s3_bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3066 asection *sec,
3067 int *retval)
3069 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3071 *retval = SHN_SCORE_SCOMMON;
3072 return TRUE;
3075 return FALSE;
3078 /* Adjust a symbol defined by a dynamic object and referenced by a
3079 regular object. The current definition is in some section of the
3080 dynamic object, but we're not including those sections. We have to
3081 change the definition to something the rest of the link can understand. */
3082 static bfd_boolean
3083 s3_bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
3084 struct elf_link_hash_entry *h)
3086 bfd *dynobj;
3087 struct score_elf_link_hash_entry *hscore;
3088 asection *s;
3090 dynobj = elf_hash_table (info)->dynobj;
3092 /* Make sure we know what is going on here. */
3093 BFD_ASSERT (dynobj != NULL
3094 && (h->needs_plt
3095 || h->u.weakdef != NULL
3096 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
3098 /* If this symbol is defined in a dynamic object, we need to copy
3099 any R_SCORE_ABS32 or R_SCORE_REL32 relocs against it into the output
3100 file. */
3101 hscore = (struct score_elf_link_hash_entry *)h;
3102 if (!info->relocatable
3103 && hscore->possibly_dynamic_relocs != 0
3104 && (h->root.type == bfd_link_hash_defweak || !h->def_regular))
3106 score_elf_allocate_dynamic_relocations (dynobj, hscore->possibly_dynamic_relocs);
3107 if (hscore->readonly_reloc)
3108 /* We tell the dynamic linker that there are relocations
3109 against the text segment. */
3110 info->flags |= DF_TEXTREL;
3113 /* For a function, create a stub, if allowed. */
3114 if (!hscore->no_fn_stub && h->needs_plt)
3116 if (!elf_hash_table (info)->dynamic_sections_created)
3117 return TRUE;
3119 /* If this symbol is not defined in a regular file, then set
3120 the symbol to the stub location. This is required to make
3121 function pointers compare as equal between the normal
3122 executable and the shared library. */
3123 if (!h->def_regular)
3125 /* We need .stub section. */
3126 s = bfd_get_section_by_name (dynobj, SCORE_ELF_STUB_SECTION_NAME);
3127 BFD_ASSERT (s != NULL);
3129 h->root.u.def.section = s;
3130 h->root.u.def.value = s->size;
3132 /* XXX Write this stub address somewhere. */
3133 h->plt.offset = s->size;
3135 /* Make room for this stub code. */
3136 s->size += SCORE_FUNCTION_STUB_SIZE;
3138 /* The last half word of the stub will be filled with the index
3139 of this symbol in .dynsym section. */
3140 return TRUE;
3143 else if ((h->type == STT_FUNC) && !h->needs_plt)
3145 /* This will set the entry for this symbol in the GOT to 0, and
3146 the dynamic linker will take care of this. */
3147 h->root.u.def.value = 0;
3148 return TRUE;
3151 /* If this is a weak symbol, and there is a real definition, the
3152 processor independent code will have arranged for us to see the
3153 real definition first, and we can just use the same value. */
3154 if (h->u.weakdef != NULL)
3156 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3157 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3158 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3159 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3160 return TRUE;
3163 /* This is a reference to a symbol defined by a dynamic object which
3164 is not a function. */
3165 return TRUE;
3168 /* This function is called after all the input files have been read,
3169 and the input sections have been assigned to output sections. */
3170 static bfd_boolean
3171 s3_bfd_score_elf_always_size_sections (bfd *output_bfd,
3172 struct bfd_link_info *info)
3174 bfd *dynobj;
3175 asection *s;
3176 struct score_got_info *g;
3177 int i;
3178 bfd_size_type loadable_size = 0;
3179 bfd_size_type local_gotno;
3180 bfd *sub;
3182 dynobj = elf_hash_table (info)->dynobj;
3183 if (dynobj == NULL)
3184 /* Relocatable links don't have it. */
3185 return TRUE;
3187 g = score_elf_got_info (dynobj, &s);
3188 if (s == NULL)
3189 return TRUE;
3191 /* Calculate the total loadable size of the output. That will give us the
3192 maximum number of GOT_PAGE entries required. */
3193 for (sub = info->input_bfds; sub; sub = sub->link_next)
3195 asection *subsection;
3197 for (subsection = sub->sections;
3198 subsection;
3199 subsection = subsection->next)
3201 if ((subsection->flags & SEC_ALLOC) == 0)
3202 continue;
3203 loadable_size += ((subsection->size + 0xf)
3204 &~ (bfd_size_type) 0xf);
3208 /* There has to be a global GOT entry for every symbol with
3209 a dynamic symbol table index of DT_SCORE_GOTSYM or
3210 higher. Therefore, it make sense to put those symbols
3211 that need GOT entries at the end of the symbol table. We
3212 do that here. */
3213 if (! score_elf_sort_hash_table (info, 1))
3214 return FALSE;
3216 if (g->global_gotsym != NULL)
3217 i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
3218 else
3219 /* If there are no global symbols, or none requiring
3220 relocations, then GLOBAL_GOTSYM will be NULL. */
3221 i = 0;
3223 /* In the worst case, we'll get one stub per dynamic symbol. */
3224 loadable_size += SCORE_FUNCTION_STUB_SIZE * i;
3226 /* Assume there are two loadable segments consisting of
3227 contiguous sections. Is 5 enough? */
3228 local_gotno = (loadable_size >> 16) + 5;
3230 g->local_gotno += local_gotno;
3231 s->size += g->local_gotno * SCORE_ELF_GOT_SIZE (output_bfd);
3233 g->global_gotno = i;
3234 s->size += i * SCORE_ELF_GOT_SIZE (output_bfd);
3236 score_elf_resolve_final_got_entries (g);
3238 if (s->size > SCORE_ELF_GOT_MAX_SIZE (output_bfd))
3240 /* Fixme. Error message or Warning message should be issued here. */
3243 return TRUE;
3246 /* Set the sizes of the dynamic sections. */
3247 static bfd_boolean
3248 s3_bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3250 bfd *dynobj;
3251 asection *s;
3252 bfd_boolean reltext;
3254 dynobj = elf_hash_table (info)->dynobj;
3255 BFD_ASSERT (dynobj != NULL);
3257 if (elf_hash_table (info)->dynamic_sections_created)
3259 /* Set the contents of the .interp section to the interpreter. */
3260 if (!info->shared)
3262 s = bfd_get_section_by_name (dynobj, ".interp");
3263 BFD_ASSERT (s != NULL);
3264 s->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
3265 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3269 /* The check_relocs and adjust_dynamic_symbol entry points have
3270 determined the sizes of the various dynamic sections. Allocate
3271 memory for them. */
3272 reltext = FALSE;
3273 for (s = dynobj->sections; s != NULL; s = s->next)
3275 const char *name;
3277 if ((s->flags & SEC_LINKER_CREATED) == 0)
3278 continue;
3280 /* It's OK to base decisions on the section name, because none
3281 of the dynobj section names depend upon the input files. */
3282 name = bfd_get_section_name (dynobj, s);
3284 if (CONST_STRNEQ (name, ".rel"))
3286 if (s->size == 0)
3288 /* We only strip the section if the output section name
3289 has the same name. Otherwise, there might be several
3290 input sections for this output section. FIXME: This
3291 code is probably not needed these days anyhow, since
3292 the linker now does not create empty output sections. */
3293 if (s->output_section != NULL
3294 && strcmp (name,
3295 bfd_get_section_name (s->output_section->owner,
3296 s->output_section)) == 0)
3297 s->flags |= SEC_EXCLUDE;
3299 else
3301 const char *outname;
3302 asection *target;
3304 /* If this relocation section applies to a read only
3305 section, then we probably need a DT_TEXTREL entry.
3306 If the relocation section is .rel.dyn, we always
3307 assert a DT_TEXTREL entry rather than testing whether
3308 there exists a relocation to a read only section or
3309 not. */
3310 outname = bfd_get_section_name (output_bfd, s->output_section);
3311 target = bfd_get_section_by_name (output_bfd, outname + 4);
3312 if ((target != NULL
3313 && (target->flags & SEC_READONLY) != 0
3314 && (target->flags & SEC_ALLOC) != 0) || strcmp (outname, ".rel.dyn") == 0)
3315 reltext = TRUE;
3317 /* We use the reloc_count field as a counter if we need
3318 to copy relocs into the output file. */
3319 if (strcmp (name, ".rel.dyn") != 0)
3320 s->reloc_count = 0;
3323 else if (CONST_STRNEQ (name, ".got"))
3325 /* s3_bfd_score_elf_always_size_sections() has already done
3326 most of the work, but some symbols may have been mapped
3327 to versions that we must now resolve in the got_entries
3328 hash tables. */
3330 else if (strcmp (name, SCORE_ELF_STUB_SECTION_NAME) == 0)
3332 /* IRIX rld assumes that the function stub isn't at the end
3333 of .text section. So put a dummy. XXX */
3334 s->size += SCORE_FUNCTION_STUB_SIZE;
3336 else if (! CONST_STRNEQ (name, ".init"))
3338 /* It's not one of our sections, so don't allocate space. */
3339 continue;
3342 /* Allocate memory for the section contents. */
3343 s->contents = bfd_zalloc (dynobj, s->size);
3344 if (s->contents == NULL && s->size != 0)
3346 bfd_set_error (bfd_error_no_memory);
3347 return FALSE;
3351 if (elf_hash_table (info)->dynamic_sections_created)
3353 /* Add some entries to the .dynamic section. We fill in the
3354 values later, in s3_bfd_score_elf_finish_dynamic_sections, but we
3355 must add the entries now so that we get the correct size for
3356 the .dynamic section. The DT_DEBUG entry is filled in by the
3357 dynamic linker and used by the debugger. */
3359 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
3360 return FALSE;
3362 if (reltext)
3363 info->flags |= DF_TEXTREL;
3365 if ((info->flags & DF_TEXTREL) != 0)
3367 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0))
3368 return FALSE;
3371 if (! SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0))
3372 return FALSE;
3374 if (score_elf_rel_dyn_section (dynobj, FALSE))
3376 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0))
3377 return FALSE;
3379 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0))
3380 return FALSE;
3382 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0))
3383 return FALSE;
3386 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_BASE_ADDRESS, 0))
3387 return FALSE;
3389 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_LOCAL_GOTNO, 0))
3390 return FALSE;
3392 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_SYMTABNO, 0))
3393 return FALSE;
3395 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_UNREFEXTNO, 0))
3396 return FALSE;
3398 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_GOTSYM, 0))
3399 return FALSE;
3401 if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_HIPAGENO, 0))
3402 return FALSE;
3405 return TRUE;
3408 static bfd_boolean
3409 s3_bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3411 struct elf_link_hash_entry *h;
3412 struct bfd_link_hash_entry *bh;
3413 flagword flags;
3414 asection *s;
3416 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3417 | SEC_LINKER_CREATED | SEC_READONLY);
3419 /* ABI requests the .dynamic section to be read only. */
3420 s = bfd_get_section_by_name (abfd, ".dynamic");
3421 if (s != NULL)
3423 if (!bfd_set_section_flags (abfd, s, flags))
3424 return FALSE;
3427 /* We need to create .got section. */
3428 if (!score_elf_create_got_section (abfd, info, FALSE))
3429 return FALSE;
3431 if (!score_elf_rel_dyn_section (elf_hash_table (info)->dynobj, TRUE))
3432 return FALSE;
3434 /* Create .stub section. */
3435 if (bfd_get_section_by_name (abfd, SCORE_ELF_STUB_SECTION_NAME) == NULL)
3437 s = bfd_make_section_with_flags (abfd, SCORE_ELF_STUB_SECTION_NAME,
3438 flags | SEC_CODE);
3439 if (s == NULL
3440 || !bfd_set_section_alignment (abfd, s, 2))
3442 return FALSE;
3445 if (!info->shared)
3447 const char *name;
3449 name = "_DYNAMIC_LINK";
3450 bh = NULL;
3451 if (!(_bfd_generic_link_add_one_symbol
3452 (info, abfd, name, BSF_GLOBAL, bfd_abs_section_ptr,
3453 (bfd_vma) 0, NULL, FALSE, get_elf_backend_data (abfd)->collect, &bh)))
3454 return FALSE;
3456 h = (struct elf_link_hash_entry *)bh;
3457 h->non_elf = 0;
3458 h->def_regular = 1;
3459 h->type = STT_SECTION;
3461 if (!bfd_elf_link_record_dynamic_symbol (info, h))
3462 return FALSE;
3465 return TRUE;
3469 /* Finish up dynamic symbol handling. We set the contents of various
3470 dynamic sections here. */
3471 static bfd_boolean
3472 s3_bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd,
3473 struct bfd_link_info *info,
3474 struct elf_link_hash_entry *h,
3475 Elf_Internal_Sym *sym)
3477 bfd *dynobj;
3478 asection *sgot;
3479 struct score_got_info *g;
3480 const char *name;
3482 dynobj = elf_hash_table (info)->dynobj;
3484 if (h->plt.offset != MINUS_ONE)
3486 asection *s;
3487 bfd_byte stub[SCORE_FUNCTION_STUB_SIZE];
3489 /* This symbol has a stub. Set it up. */
3490 BFD_ASSERT (h->dynindx != -1);
3492 s = bfd_get_section_by_name (dynobj, SCORE_ELF_STUB_SECTION_NAME);
3493 BFD_ASSERT (s != NULL);
3495 /* FIXME: Can h->dynindex be more than 64K? */
3496 if (h->dynindx & 0xffff0000)
3497 return FALSE;
3499 /* Fill the stub. */
3500 score_bfd_put_32 (output_bfd, STUB_LW, stub);
3501 score_bfd_put_32 (output_bfd, STUB_MOVE, stub + 4);
3502 score_bfd_put_32 (output_bfd, STUB_LI16 | (h->dynindx << 1), stub + 8);
3503 score_bfd_put_32 (output_bfd, STUB_BRL, stub + 12);
3505 BFD_ASSERT (h->plt.offset <= s->size);
3506 memcpy (s->contents + h->plt.offset, stub, SCORE_FUNCTION_STUB_SIZE);
3508 /* Mark the symbol as undefined. plt.offset != -1 occurs
3509 only for the referenced symbol. */
3510 sym->st_shndx = SHN_UNDEF;
3512 /* The run-time linker uses the st_value field of the symbol
3513 to reset the global offset table entry for this external
3514 to its stub address when unlinking a shared object. */
3515 sym->st_value = (s->output_section->vma + s->output_offset + h->plt.offset);
3518 BFD_ASSERT (h->dynindx != -1 || h->forced_local);
3520 sgot = score_elf_got_section (dynobj, FALSE);
3521 BFD_ASSERT (sgot != NULL);
3522 BFD_ASSERT (score_elf_section_data (sgot) != NULL);
3523 g = score_elf_section_data (sgot)->u.got_info;
3524 BFD_ASSERT (g != NULL);
3526 /* Run through the global symbol table, creating GOT entries for all
3527 the symbols that need them. */
3528 if (g->global_gotsym != NULL && h->dynindx >= g->global_gotsym->dynindx)
3530 bfd_vma offset;
3531 bfd_vma value;
3533 value = sym->st_value;
3534 offset = score_elf_global_got_index (dynobj, h);
3535 score_bfd_put_32 (output_bfd, value, sgot->contents + offset);
3538 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3539 name = h->root.root.string;
3540 if (strcmp (name, "_DYNAMIC") == 0 || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
3541 sym->st_shndx = SHN_ABS;
3542 else if (strcmp (name, "_DYNAMIC_LINK") == 0)
3544 sym->st_shndx = SHN_ABS;
3545 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
3546 sym->st_value = 1;
3548 else if (strcmp (name, GP_DISP_LABEL) == 0)
3550 sym->st_shndx = SHN_ABS;
3551 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
3552 sym->st_value = elf_gp (output_bfd);
3555 return TRUE;
3558 /* Finish up the dynamic sections. */
3559 static bfd_boolean
3560 s3_bfd_score_elf_finish_dynamic_sections (bfd *output_bfd,
3561 struct bfd_link_info *info)
3563 bfd *dynobj;
3564 asection *sdyn;
3565 asection *sgot;
3566 asection *s;
3567 struct score_got_info *g;
3569 dynobj = elf_hash_table (info)->dynobj;
3571 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3573 sgot = score_elf_got_section (dynobj, FALSE);
3574 if (sgot == NULL)
3575 g = NULL;
3576 else
3578 BFD_ASSERT (score_elf_section_data (sgot) != NULL);
3579 g = score_elf_section_data (sgot)->u.got_info;
3580 BFD_ASSERT (g != NULL);
3583 if (elf_hash_table (info)->dynamic_sections_created)
3585 bfd_byte *b;
3587 BFD_ASSERT (sdyn != NULL);
3588 BFD_ASSERT (g != NULL);
3590 for (b = sdyn->contents;
3591 b < sdyn->contents + sdyn->size;
3592 b += SCORE_ELF_DYN_SIZE (dynobj))
3594 Elf_Internal_Dyn dyn;
3595 const char *name;
3596 size_t elemsize;
3597 bfd_boolean swap_out_p;
3599 /* Read in the current dynamic entry. */
3600 (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
3602 /* Assume that we're going to modify it and write it out. */
3603 swap_out_p = TRUE;
3605 switch (dyn.d_tag)
3607 case DT_RELENT:
3608 s = score_elf_rel_dyn_section (dynobj, FALSE);
3609 BFD_ASSERT (s != NULL);
3610 dyn.d_un.d_val = SCORE_ELF_REL_SIZE (dynobj);
3611 break;
3613 case DT_STRSZ:
3614 /* Rewrite DT_STRSZ. */
3615 dyn.d_un.d_val = _bfd_elf_strtab_size (elf_hash_table (info)->dynstr);
3616 break;
3618 case DT_PLTGOT:
3619 name = ".got";
3620 s = bfd_get_section_by_name (output_bfd, name);
3621 BFD_ASSERT (s != NULL);
3622 dyn.d_un.d_ptr = s->vma;
3623 break;
3625 case DT_SCORE_BASE_ADDRESS:
3626 s = output_bfd->sections;
3627 BFD_ASSERT (s != NULL);
3628 dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff;
3629 break;
3631 case DT_SCORE_LOCAL_GOTNO:
3632 dyn.d_un.d_val = g->local_gotno;
3633 break;
3635 case DT_SCORE_UNREFEXTNO:
3636 /* The index into the dynamic symbol table which is the
3637 entry of the first external symbol that is not
3638 referenced within the same object. */
3639 dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
3640 break;
3642 case DT_SCORE_GOTSYM:
3643 if (g->global_gotsym)
3645 dyn.d_un.d_val = g->global_gotsym->dynindx;
3646 break;
3648 /* In case if we don't have global got symbols we default
3649 to setting DT_SCORE_GOTSYM to the same value as
3650 DT_SCORE_SYMTABNO, so we just fall through. */
3652 case DT_SCORE_SYMTABNO:
3653 name = ".dynsym";
3654 elemsize = SCORE_ELF_SYM_SIZE (output_bfd);
3655 s = bfd_get_section_by_name (output_bfd, name);
3656 BFD_ASSERT (s != NULL);
3658 dyn.d_un.d_val = s->size / elemsize;
3659 break;
3661 case DT_SCORE_HIPAGENO:
3662 dyn.d_un.d_val = g->local_gotno - SCORE_RESERVED_GOTNO;
3663 break;
3665 default:
3666 swap_out_p = FALSE;
3667 break;
3670 if (swap_out_p)
3671 (*get_elf_backend_data (dynobj)->s->swap_dyn_out) (dynobj, &dyn, b);
3675 /* The first entry of the global offset table will be filled at
3676 runtime. The second entry will be used by some runtime loaders.
3677 This isn't the case of IRIX rld. */
3678 if (sgot != NULL && sgot->size > 0)
3680 score_bfd_put_32 (output_bfd, 0, sgot->contents);
3681 score_bfd_put_32 (output_bfd, 0x80000000, sgot->contents + SCORE_ELF_GOT_SIZE (output_bfd));
3684 if (sgot != NULL)
3685 elf_section_data (sgot->output_section)->this_hdr.sh_entsize
3686 = SCORE_ELF_GOT_SIZE (output_bfd);
3689 /* We need to sort the entries of the dynamic relocation section. */
3690 s = score_elf_rel_dyn_section (dynobj, FALSE);
3692 if (s != NULL && s->size > (bfd_vma)2 * SCORE_ELF_REL_SIZE (output_bfd))
3694 reldyn_sorting_bfd = output_bfd;
3695 qsort ((Elf32_External_Rel *) s->contents + 1, s->reloc_count - 1,
3696 sizeof (Elf32_External_Rel), score_elf_sort_dynamic_relocs);
3699 return TRUE;
3702 /* This function set up the ELF section header for a BFD section in preparation for writing
3703 it out. This is where the flags and type fields are set for unusual sections. */
3704 static bfd_boolean
3705 s3_bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3706 Elf_Internal_Shdr *hdr,
3707 asection *sec)
3709 const char *name;
3711 name = bfd_get_section_name (abfd, sec);
3713 if (strcmp (name, ".got") == 0
3714 || strcmp (name, ".srdata") == 0
3715 || strcmp (name, ".sdata") == 0
3716 || strcmp (name, ".sbss") == 0)
3717 hdr->sh_flags |= SHF_SCORE_GPREL;
3719 return TRUE;
3722 /* This function do additional processing on the ELF section header before writing
3723 it out. This is used to set the flags and type fields for some sections. */
3725 /* assign_file_positions_except_relocs() check section flag and if it is allocatable,
3726 warning message will be issued. backend_fake_section is called before
3727 assign_file_positions_except_relocs(); backend_section_processing after it. so, we
3728 modify section flag there, but not backend_fake_section. */
3729 static bfd_boolean
3730 s3_bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr)
3732 if (hdr->bfd_section != NULL)
3734 const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
3736 if (strcmp (name, ".sdata") == 0)
3738 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL;
3739 hdr->sh_type = SHT_PROGBITS;
3741 else if (strcmp (name, ".sbss") == 0)
3743 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL;
3744 hdr->sh_type = SHT_NOBITS;
3746 else if (strcmp (name, ".srdata") == 0)
3748 hdr->sh_flags |= SHF_ALLOC | SHF_SCORE_GPREL;
3749 hdr->sh_type = SHT_PROGBITS;
3753 return TRUE;
3756 static bfd_boolean
3757 s3_bfd_score_elf_write_section (bfd *output_bfd, asection *sec, bfd_byte *contents)
3759 bfd_byte *to, *from, *end;
3760 int i;
3762 if (strcmp (sec->name, ".pdr") != 0)
3763 return FALSE;
3765 if (score_elf_section_data (sec)->u.tdata == NULL)
3766 return FALSE;
3768 to = contents;
3769 end = contents + sec->size;
3770 for (from = contents, i = 0; from < end; from += PDR_SIZE, i++)
3772 if ((score_elf_section_data (sec)->u.tdata)[i] == 1)
3773 continue;
3775 if (to != from)
3776 memcpy (to, from, PDR_SIZE);
3778 to += PDR_SIZE;
3780 bfd_set_section_contents (output_bfd, sec->output_section, contents,
3781 (file_ptr) sec->output_offset, sec->size);
3783 return TRUE;
3786 /* Copy data from a SCORE ELF indirect symbol to its direct symbol, hiding the old
3787 indirect symbol. Process additional relocation information. */
3788 static void
3789 s3_bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info,
3790 struct elf_link_hash_entry *dir,
3791 struct elf_link_hash_entry *ind)
3793 struct score_elf_link_hash_entry *dirscore, *indscore;
3795 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3797 if (ind->root.type != bfd_link_hash_indirect)
3798 return;
3800 dirscore = (struct score_elf_link_hash_entry *) dir;
3801 indscore = (struct score_elf_link_hash_entry *) ind;
3802 dirscore->possibly_dynamic_relocs += indscore->possibly_dynamic_relocs;
3804 if (indscore->readonly_reloc)
3805 dirscore->readonly_reloc = TRUE;
3807 if (indscore->no_fn_stub)
3808 dirscore->no_fn_stub = TRUE;
3811 /* Remove information about discarded functions from other sections which mention them. */
3812 static bfd_boolean
3813 s3_bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie,
3814 struct bfd_link_info *info)
3816 asection *o;
3817 bfd_boolean ret = FALSE;
3818 unsigned char *tdata;
3819 size_t i, skip;
3821 o = bfd_get_section_by_name (abfd, ".pdr");
3822 if ((!o) || (o->size == 0) || (o->size % PDR_SIZE != 0)
3823 || (o->output_section != NULL && bfd_is_abs_section (o->output_section)))
3824 return FALSE;
3826 tdata = bfd_zmalloc (o->size / PDR_SIZE);
3827 if (!tdata)
3828 return FALSE;
3830 cookie->rels = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, info->keep_memory);
3831 if (!cookie->rels)
3833 free (tdata);
3834 return FALSE;
3837 cookie->rel = cookie->rels;
3838 cookie->relend = cookie->rels + o->reloc_count;
3840 for (i = 0, skip = 0; i < o->size; i++)
3842 if (bfd_elf_reloc_symbol_deleted_p (i * PDR_SIZE, cookie))
3844 tdata[i] = 1;
3845 skip++;
3849 if (skip != 0)
3851 score_elf_section_data (o)->u.tdata = tdata;
3852 o->size -= skip * PDR_SIZE;
3853 ret = TRUE;
3855 else
3856 free (tdata);
3858 if (!info->keep_memory)
3859 free (cookie->rels);
3861 return ret;
3864 /* Signal that discard_info() has removed the discarded relocations for this section. */
3865 static bfd_boolean
3866 s3_bfd_score_elf_ignore_discarded_relocs (asection *sec)
3868 if (strcmp (sec->name, ".pdr") == 0)
3869 return TRUE;
3870 return FALSE;
3873 /* Return the section that should be marked against GC for a given
3874 relocation. */
3875 static asection *
3876 s3_bfd_score_elf_gc_mark_hook (asection *sec,
3877 struct bfd_link_info *info,
3878 Elf_Internal_Rela *rel,
3879 struct elf_link_hash_entry *h,
3880 Elf_Internal_Sym *sym)
3882 if (h != NULL)
3883 switch (ELF32_R_TYPE (rel->r_info))
3885 case R_SCORE_GNU_VTINHERIT:
3886 case R_SCORE_GNU_VTENTRY:
3887 return NULL;
3890 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3893 /* Support for core dump NOTE sections. */
3895 static bfd_boolean
3896 s3_bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
3898 int offset;
3899 unsigned int raw_size;
3901 switch (note->descsz)
3903 default:
3904 return FALSE;
3906 case 148: /* Linux/Score 32-bit. */
3907 /* pr_cursig */
3908 elf_tdata (abfd)->core_signal = score_bfd_get_16 (abfd, note->descdata + 12);
3910 /* pr_pid */
3911 elf_tdata (abfd)->core_lwpid = score_bfd_get_32 (abfd, note->descdata + 24);
3913 /* pr_reg */
3914 offset = 72;
3915 raw_size = 72;
3917 break;
3920 /* Make a ".reg/999" section. */
3921 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size, note->descpos + offset);
3924 static bfd_boolean
3925 s3_bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
3927 switch (note->descsz)
3929 default:
3930 return FALSE;
3932 case 124: /* Linux/Score elf_prpsinfo. */
3933 elf_tdata (abfd)->core_program = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
3934 elf_tdata (abfd)->core_command = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
3937 /* Note that for some reason, a spurious space is tacked
3938 onto the end of the args in some (at least one anyway)
3939 implementations, so strip it off if it exists. */
3942 char *command = elf_tdata (abfd)->core_command;
3943 int n = strlen (command);
3945 if (0 < n && command[n - 1] == ' ')
3946 command[n - 1] = '\0';
3949 return TRUE;
3953 /* Score BFD functions. */
3954 static reloc_howto_type *
3955 s3_elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code)
3957 unsigned int i;
3959 for (i = 0; i < ARRAY_SIZE (elf32_score_reloc_map); i++)
3960 if (elf32_score_reloc_map[i].bfd_reloc_val == code)
3961 return &elf32_score_howto_table[elf32_score_reloc_map[i].elf_reloc_val];
3963 return NULL;
3966 static reloc_howto_type *
3967 elf32_score_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
3968 const char *r_name)
3970 unsigned int i;
3972 for (i = 0;
3973 i < (sizeof (elf32_score_howto_table)
3974 / sizeof (elf32_score_howto_table[0]));
3975 i++)
3976 if (elf32_score_howto_table[i].name != NULL
3977 && strcasecmp (elf32_score_howto_table[i].name, r_name) == 0)
3978 return &elf32_score_howto_table[i];
3980 return NULL;
3983 static bfd_boolean
3984 s3_elf32_score_print_private_bfd_data (bfd *abfd, void * ptr)
3986 FILE *file = (FILE *) ptr;
3988 BFD_ASSERT (abfd != NULL && ptr != NULL);
3990 /* Print normal ELF private data. */
3991 _bfd_elf_print_private_bfd_data (abfd, ptr);
3993 /* xgettext:c-format */
3994 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
3995 if (elf_elfheader (abfd)->e_flags & EF_SCORE_PIC)
3997 fprintf (file, _(" [pic]"));
3999 if (elf_elfheader (abfd)->e_flags & EF_SCORE_FIXDEP)
4001 fprintf (file, _(" [fix dep]"));
4003 fputc ('\n', file);
4005 return TRUE;
4008 static bfd_boolean
4009 s3_elf32_score_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4011 flagword in_flags;
4012 flagword out_flags;
4014 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
4015 return FALSE;
4017 in_flags = elf_elfheader (ibfd)->e_flags;
4018 out_flags = elf_elfheader (obfd)->e_flags;
4020 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4021 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4022 return TRUE;
4024 in_flags = elf_elfheader (ibfd)->e_flags;
4025 out_flags = elf_elfheader (obfd)->e_flags;
4027 if (! elf_flags_init (obfd))
4029 elf_flags_init (obfd) = TRUE;
4030 elf_elfheader (obfd)->e_flags = in_flags;
4032 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4033 && bfd_get_arch_info (obfd)->the_default)
4035 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
4038 return TRUE;
4041 if (((in_flags & EF_SCORE_PIC) != 0) != ((out_flags & EF_SCORE_PIC) != 0))
4043 (*_bfd_error_handler) (_("%B: warning: linking PIC files with non-PIC files"), ibfd);
4046 /* FIXME: Maybe dependency fix compatibility should be checked here. */
4048 return TRUE;
4051 static bfd_boolean
4052 s3_elf32_score_new_section_hook (bfd *abfd, asection *sec)
4054 struct _score_elf_section_data *sdata;
4055 bfd_size_type amt = sizeof (*sdata);
4057 sdata = bfd_zalloc (abfd, amt);
4058 if (sdata == NULL)
4059 return FALSE;
4060 sec->used_by_bfd = sdata;
4062 return _bfd_elf_new_section_hook (abfd, sec);
4065 /*****************************************************************************/
4067 /* s3_s7: backend hooks. */
4068 static void
4069 _bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
4070 arelent *bfd_reloc,
4071 Elf_Internal_Rela *elf_reloc)
4073 if (bfd_get_mach (abfd) == bfd_mach_score3)
4074 return s3_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc);
4075 else
4076 return s7_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc);
4079 static bfd_boolean
4080 _bfd_score_elf_relocate_section (bfd *output_bfd,
4081 struct bfd_link_info *info,
4082 bfd *input_bfd,
4083 asection *input_section,
4084 bfd_byte *contents,
4085 Elf_Internal_Rela *relocs,
4086 Elf_Internal_Sym *local_syms,
4087 asection **local_sections)
4089 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4090 return s3_bfd_score_elf_relocate_section (output_bfd,
4091 info, input_bfd, input_section, contents, relocs,
4092 local_syms, local_sections);
4093 else
4094 return s7_bfd_score_elf_relocate_section (output_bfd,
4095 info, input_bfd, input_section, contents, relocs,
4096 local_syms, local_sections);
4099 static bfd_boolean
4100 _bfd_score_elf_check_relocs (bfd *abfd,
4101 struct bfd_link_info *info,
4102 asection *sec,
4103 const Elf_Internal_Rela *relocs)
4105 if (bfd_get_mach (abfd) == bfd_mach_score3)
4106 return s3_bfd_score_elf_check_relocs (abfd, info, sec, relocs);
4107 else
4108 return s7_bfd_score_elf_check_relocs (abfd, info, sec, relocs);
4111 static bfd_boolean
4112 _bfd_score_elf_add_symbol_hook (bfd *abfd,
4113 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4114 Elf_Internal_Sym *sym,
4115 const char **namep ATTRIBUTE_UNUSED,
4116 flagword *flagsp ATTRIBUTE_UNUSED,
4117 asection **secp,
4118 bfd_vma *valp)
4120 if (bfd_get_mach (abfd) == bfd_mach_score3)
4121 return s3_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp,
4122 secp, valp);
4123 else
4124 return s7_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp,
4125 secp, valp);
4128 static void
4129 _bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym)
4131 if (bfd_get_mach (abfd) == bfd_mach_score3)
4132 return s3_bfd_score_elf_symbol_processing (abfd, asym);
4133 else
4134 return s7_bfd_score_elf_symbol_processing (abfd, asym);
4137 static int
4138 _bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
4139 const char *name ATTRIBUTE_UNUSED,
4140 Elf_Internal_Sym *sym,
4141 asection *input_sec,
4142 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
4144 /* If link a empty .o, then this filed is NULL. */
4145 if (info->input_bfds == NULL)
4147 /* If we see a common symbol, which implies a relocatable link, then
4148 if a symbol was small common in an input file, mark it as small
4149 common in the output file. */
4150 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
4151 sym->st_shndx = SHN_SCORE_SCOMMON;
4152 return 1;
4155 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4156 return s3_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h);
4157 else
4158 return s7_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h);
4161 static bfd_boolean
4162 _bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
4163 asection *sec,
4164 int *retval)
4166 if (bfd_get_mach (abfd) == bfd_mach_score3)
4167 return s3_bfd_score_elf_section_from_bfd_section (abfd, sec, retval);
4168 else
4169 return s7_bfd_score_elf_section_from_bfd_section (abfd, sec, retval);
4172 static bfd_boolean
4173 _bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4174 struct elf_link_hash_entry *h)
4176 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4177 return s3_bfd_score_elf_adjust_dynamic_symbol (info, h);
4178 else
4179 return s7_bfd_score_elf_adjust_dynamic_symbol (info, h);
4182 static bfd_boolean
4183 _bfd_score_elf_always_size_sections (bfd *output_bfd,
4184 struct bfd_link_info *info)
4186 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4187 return s3_bfd_score_elf_always_size_sections (output_bfd, info);
4188 else
4189 return s7_bfd_score_elf_always_size_sections (output_bfd, info);
4192 static bfd_boolean
4193 _bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4195 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4196 return s3_bfd_score_elf_size_dynamic_sections (output_bfd, info);
4197 else
4198 return s7_bfd_score_elf_size_dynamic_sections (output_bfd, info);
4201 static bfd_boolean
4202 _bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4204 if (bfd_get_mach (abfd) == bfd_mach_score3)
4205 return s3_bfd_score_elf_create_dynamic_sections (abfd, info);
4206 else
4207 return s7_bfd_score_elf_create_dynamic_sections (abfd, info);
4210 static bfd_boolean
4211 _bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd,
4212 struct bfd_link_info *info,
4213 struct elf_link_hash_entry *h,
4214 Elf_Internal_Sym *sym)
4216 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4217 return s3_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym);
4218 else
4219 return s7_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym);
4222 static bfd_boolean
4223 _bfd_score_elf_finish_dynamic_sections (bfd *output_bfd,
4224 struct bfd_link_info *info)
4226 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4227 return s3_bfd_score_elf_finish_dynamic_sections (output_bfd, info);
4228 else
4229 return s7_bfd_score_elf_finish_dynamic_sections (output_bfd, info);
4232 static bfd_boolean
4233 _bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
4234 Elf_Internal_Shdr *hdr,
4235 asection *sec)
4237 if (bfd_get_mach (abfd) == bfd_mach_score3)
4238 return s3_bfd_score_elf_fake_sections (abfd, hdr, sec);
4239 else
4240 return s7_bfd_score_elf_fake_sections (abfd, hdr, sec);
4243 static bfd_boolean
4244 _bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr)
4246 if (bfd_get_mach (abfd) == bfd_mach_score3)
4247 return s3_bfd_score_elf_section_processing (abfd, hdr);
4248 else
4249 return s7_bfd_score_elf_section_processing (abfd, hdr);
4252 static bfd_boolean
4253 _bfd_score_elf_write_section (bfd *output_bfd,
4254 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4255 asection *sec, bfd_byte *contents)
4257 if (bfd_get_mach (output_bfd) == bfd_mach_score3)
4258 return s3_bfd_score_elf_write_section (output_bfd, sec, contents);
4259 else
4260 return s7_bfd_score_elf_write_section (output_bfd, sec, contents);
4263 static void
4264 _bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info,
4265 struct elf_link_hash_entry *dir,
4266 struct elf_link_hash_entry *ind)
4268 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4269 return s3_bfd_score_elf_copy_indirect_symbol (info, dir, ind);
4270 else
4271 return s7_bfd_score_elf_copy_indirect_symbol (info, dir, ind);
4274 static void
4275 _bfd_score_elf_hide_symbol (struct bfd_link_info *info,
4276 struct elf_link_hash_entry *entry,
4277 bfd_boolean force_local)
4279 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4280 return s3_bfd_score_elf_hide_symbol (info, entry, force_local);
4281 else
4282 return s7_bfd_score_elf_hide_symbol (info, entry, force_local);
4285 static bfd_boolean
4286 _bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie,
4287 struct bfd_link_info *info)
4289 if (bfd_get_mach (abfd) == bfd_mach_score3)
4290 return s3_bfd_score_elf_discard_info (abfd, cookie, info);
4291 else
4292 return s7_bfd_score_elf_discard_info (abfd, cookie, info);
4295 static bfd_boolean
4296 _bfd_score_elf_ignore_discarded_relocs (asection *sec)
4298 if (bfd_get_mach (sec->owner) == bfd_mach_score3)
4299 return s3_bfd_score_elf_ignore_discarded_relocs (sec);
4300 else
4301 return s7_bfd_score_elf_ignore_discarded_relocs (sec);
4304 static asection *
4305 _bfd_score_elf_gc_mark_hook (asection *sec,
4306 struct bfd_link_info *info,
4307 Elf_Internal_Rela *rel,
4308 struct elf_link_hash_entry *h,
4309 Elf_Internal_Sym *sym)
4311 if (bfd_get_mach (info->input_bfds) == bfd_mach_score3)
4312 return s3_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym);
4313 else
4314 return s7_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym);
4317 static bfd_boolean
4318 _bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
4320 if (bfd_get_mach (abfd) == bfd_mach_score3)
4321 return s3_bfd_score_elf_grok_prstatus (abfd, note);
4322 else
4323 return s7_bfd_score_elf_grok_prstatus (abfd, note);
4326 static bfd_boolean
4327 _bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
4329 if (bfd_get_mach (abfd) == bfd_mach_score3)
4330 return s3_bfd_score_elf_grok_psinfo (abfd, note);
4331 else
4332 return s7_bfd_score_elf_grok_psinfo (abfd, note);
4335 static reloc_howto_type *
4336 elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code)
4338 /* s3: NOTE!!!
4339 gas will call elf32_score_reloc_type_lookup, and don't write elf file.
4340 So just using score3, but we don't know ld will call this or not.
4341 If so, this way can't work. */
4343 if (score3)
4344 return s3_elf32_score_reloc_type_lookup (abfd, code);
4345 else
4346 return s7_elf32_score_reloc_type_lookup (abfd, code);
4349 /* Create a score elf linker hash table.
4350 This is a copy of _bfd_elf_link_hash_table_create() except with a
4351 different hash table entry creation function. */
4353 static struct bfd_link_hash_table *
4354 elf32_score_link_hash_table_create (bfd *abfd)
4356 struct elf_link_hash_table *ret;
4357 bfd_size_type amt = sizeof (struct elf_link_hash_table);
4359 ret = (struct elf_link_hash_table *) bfd_malloc (amt);
4360 if (ret == NULL)
4361 return NULL;
4363 if (!_bfd_elf_link_hash_table_init (ret, abfd, score_elf_link_hash_newfunc,
4364 sizeof (struct score_elf_link_hash_entry),
4365 GENERIC_ELF_DATA))
4367 free (ret);
4368 return NULL;
4371 return &ret->root;
4374 static bfd_boolean
4375 elf32_score_print_private_bfd_data (bfd *abfd, void * ptr)
4377 if (bfd_get_mach (abfd) == bfd_mach_score3)
4378 return s3_elf32_score_print_private_bfd_data (abfd, ptr);
4379 else
4380 return s7_elf32_score_print_private_bfd_data (abfd, ptr);
4383 static bfd_boolean
4384 elf32_score_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4386 if (bfd_get_mach (obfd) == bfd_mach_score3)
4387 return s3_elf32_score_merge_private_bfd_data (ibfd, obfd);
4388 else
4389 return s7_elf32_score_merge_private_bfd_data (ibfd, obfd);
4392 static bfd_boolean
4393 elf32_score_new_section_hook (bfd *abfd, asection *sec)
4395 if (bfd_get_mach (abfd) == bfd_mach_score3)
4396 return s3_elf32_score_new_section_hook (abfd, sec);
4397 else
4398 return s7_elf32_score_new_section_hook (abfd, sec);
4402 /* s3_s7: don't need to split. */
4404 /* Set the right machine number. */
4405 static bfd_boolean
4406 _bfd_score_elf_score_object_p (bfd * abfd)
4408 int e_set = bfd_mach_score7;
4410 if (elf_elfheader (abfd)->e_machine == EM_SCORE)
4412 int e_mach = elf_elfheader (abfd)->e_flags & EF_SCORE_MACH & EF_OMIT_PIC_FIXDD;
4413 switch (e_mach)
4415 /* Set default target is score7. */
4416 default:
4417 case E_SCORE_MACH_SCORE7:
4418 e_set = bfd_mach_score7;
4419 break;
4421 case E_SCORE_MACH_SCORE3:
4422 e_set = bfd_mach_score3;
4423 break;
4427 return bfd_default_set_arch_mach (abfd, bfd_arch_score, e_set);
4430 bfd_boolean
4431 _bfd_score_elf_common_definition (Elf_Internal_Sym *sym)
4433 return (sym->st_shndx == SHN_COMMON || sym->st_shndx == SHN_SCORE_SCOMMON);
4436 /*****************************************************************************/
4439 #define USE_REL 1
4440 #define TARGET_LITTLE_SYM bfd_elf32_littlescore_vec
4441 #define TARGET_LITTLE_NAME "elf32-littlescore"
4442 #define TARGET_BIG_SYM bfd_elf32_bigscore_vec
4443 #define TARGET_BIG_NAME "elf32-bigscore"
4444 #define ELF_ARCH bfd_arch_score
4445 #define ELF_MACHINE_CODE EM_SCORE
4446 #define ELF_MACHINE_ALT1 EM_SCORE_OLD
4447 #define ELF_MAXPAGESIZE 0x8000
4449 #define elf_info_to_howto 0
4450 #define elf_info_to_howto_rel _bfd_score_info_to_howto
4451 #define elf_backend_relocate_section _bfd_score_elf_relocate_section
4452 #define elf_backend_check_relocs _bfd_score_elf_check_relocs
4453 #define elf_backend_add_symbol_hook _bfd_score_elf_add_symbol_hook
4454 #define elf_backend_symbol_processing _bfd_score_elf_symbol_processing
4455 #define elf_backend_link_output_symbol_hook \
4456 _bfd_score_elf_link_output_symbol_hook
4457 #define elf_backend_section_from_bfd_section \
4458 _bfd_score_elf_section_from_bfd_section
4459 #define elf_backend_adjust_dynamic_symbol \
4460 _bfd_score_elf_adjust_dynamic_symbol
4461 #define elf_backend_always_size_sections \
4462 _bfd_score_elf_always_size_sections
4463 #define elf_backend_size_dynamic_sections \
4464 _bfd_score_elf_size_dynamic_sections
4465 #define elf_backend_omit_section_dynsym \
4466 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4467 #define elf_backend_create_dynamic_sections \
4468 _bfd_score_elf_create_dynamic_sections
4469 #define elf_backend_finish_dynamic_symbol \
4470 _bfd_score_elf_finish_dynamic_symbol
4471 #define elf_backend_finish_dynamic_sections \
4472 _bfd_score_elf_finish_dynamic_sections
4473 #define elf_backend_fake_sections _bfd_score_elf_fake_sections
4474 #define elf_backend_section_processing _bfd_score_elf_section_processing
4475 #define elf_backend_write_section _bfd_score_elf_write_section
4476 #define elf_backend_copy_indirect_symbol _bfd_score_elf_copy_indirect_symbol
4477 #define elf_backend_hide_symbol _bfd_score_elf_hide_symbol
4478 #define elf_backend_discard_info _bfd_score_elf_discard_info
4479 #define elf_backend_ignore_discarded_relocs \
4480 _bfd_score_elf_ignore_discarded_relocs
4481 #define elf_backend_gc_mark_hook _bfd_score_elf_gc_mark_hook
4482 #define elf_backend_grok_prstatus _bfd_score_elf_grok_prstatus
4483 #define elf_backend_grok_psinfo _bfd_score_elf_grok_psinfo
4484 #define elf_backend_can_gc_sections 1
4485 #define elf_backend_want_plt_sym 0
4486 #define elf_backend_got_header_size (4 * SCORE_RESERVED_GOTNO)
4487 #define elf_backend_plt_header_size 0
4488 #define elf_backend_collect TRUE
4489 #define elf_backend_type_change_ok TRUE
4490 #define elf_backend_object_p _bfd_score_elf_score_object_p
4492 #define bfd_elf32_bfd_reloc_type_lookup elf32_score_reloc_type_lookup
4493 #define bfd_elf32_bfd_reloc_name_lookup \
4494 elf32_score_reloc_name_lookup
4495 #define bfd_elf32_bfd_link_hash_table_create elf32_score_link_hash_table_create
4496 #define bfd_elf32_bfd_print_private_bfd_data elf32_score_print_private_bfd_data
4497 #define bfd_elf32_bfd_merge_private_bfd_data elf32_score_merge_private_bfd_data
4498 #define bfd_elf32_new_section_hook elf32_score_new_section_hook
4500 #include "elf32-target.h"