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[deliverable/binutils-gdb.git] / bfd / elf32-sh.c
1 /* Renesas / SuperH SH specific support for 32-bit ELF
2 Copyright (C) 1996-2020 Free Software Foundation, Inc.
3 Contributed by Ian Lance Taylor, Cygnus Support.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22 #include "sysdep.h"
23 #include "bfd.h"
24 #include "bfdlink.h"
25 #include "libbfd.h"
26 #include "elf-bfd.h"
27 #include "elf-vxworks.h"
28 #include "elf/sh.h"
29 #include "dwarf2.h"
30 #include "libiberty.h"
31 #include "../opcodes/sh-opc.h"
32
33 /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
34 #define OCTETS_PER_BYTE(ABFD, SEC) 1
35
36 static bfd_reloc_status_type sh_elf_reloc
37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
38 static bfd_reloc_status_type sh_elf_ignore_reloc
39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
40 static bfd_boolean sh_elf_relax_delete_bytes
41 (bfd *, asection *, bfd_vma, int);
42 static bfd_boolean sh_elf_align_loads
43 (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
44 static bfd_boolean sh_elf_swap_insns
45 (bfd *, asection *, void *, bfd_byte *, bfd_vma);
46 static int sh_elf_optimized_tls_reloc
47 (struct bfd_link_info *, int, int);
48 static bfd_vma dtpoff_base
49 (struct bfd_link_info *);
50 static bfd_vma tpoff
51 (struct bfd_link_info *, bfd_vma);
52
53 /* The name of the dynamic interpreter. This is put in the .interp
54 section. */
55
56 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
57
58 /* FDPIC binaries have a default 128K stack. */
59 #define DEFAULT_STACK_SIZE 0x20000
60
61 #define MINUS_ONE ((bfd_vma) 0 - 1)
62
63 /* Decide whether a reference to a symbol can be resolved locally or
64 not. If the symbol is protected, we want the local address, but
65 its function descriptor must be assigned by the dynamic linker. */
66 #define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
67 (SYMBOL_REFERENCES_LOCAL (INFO, H) \
68 || ! elf_hash_table (INFO)->dynamic_sections_created)
69 \f
70 #define SH_PARTIAL32 TRUE
71 #define SH_SRC_MASK32 0xffffffff
72 #define SH_ELF_RELOC sh_elf_reloc
73 static reloc_howto_type sh_elf_howto_table[] =
74 {
75 #include "elf32-sh-relocs.h"
76 };
77
78 #define SH_PARTIAL32 FALSE
79 #define SH_SRC_MASK32 0
80 #define SH_ELF_RELOC bfd_elf_generic_reloc
81 static reloc_howto_type sh_vxworks_howto_table[] =
82 {
83 #include "elf32-sh-relocs.h"
84 };
85 \f
86 /* Return true if OUTPUT_BFD is a VxWorks object. */
87
88 static bfd_boolean
89 vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED)
90 {
91 #if !defined SH_TARGET_ALREADY_DEFINED
92 extern const bfd_target sh_elf32_vxworks_le_vec;
93 extern const bfd_target sh_elf32_vxworks_vec;
94
95 return (abfd->xvec == &sh_elf32_vxworks_le_vec
96 || abfd->xvec == &sh_elf32_vxworks_vec);
97 #else
98 return FALSE;
99 #endif
100 }
101
102 /* Return true if OUTPUT_BFD is an FDPIC object. */
103
104 static bfd_boolean
105 fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED)
106 {
107 #if !defined SH_TARGET_ALREADY_DEFINED
108 extern const bfd_target sh_elf32_fdpic_le_vec;
109 extern const bfd_target sh_elf32_fdpic_be_vec;
110
111 return (abfd->xvec == &sh_elf32_fdpic_le_vec
112 || abfd->xvec == &sh_elf32_fdpic_be_vec);
113 #else
114 return FALSE;
115 #endif
116 }
117
118 /* Return the howto table for ABFD. */
119
120 static reloc_howto_type *
121 get_howto_table (bfd *abfd)
122 {
123 if (vxworks_object_p (abfd))
124 return sh_vxworks_howto_table;
125 return sh_elf_howto_table;
126 }
127
128 static bfd_reloc_status_type
129 sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd,
130 asection *input_section, bfd_byte *contents,
131 bfd_vma addr, asection *symbol_section,
132 bfd_vma start, bfd_vma end)
133 {
134 static bfd_vma last_addr;
135 static asection *last_symbol_section;
136 bfd_byte *start_ptr, *ptr, *last_ptr;
137 int diff, cum_diff;
138 bfd_signed_vma x;
139 int insn;
140
141 /* Sanity check the address. */
142 if (addr > bfd_get_section_limit (input_bfd, input_section))
143 return bfd_reloc_outofrange;
144
145 /* We require the start and end relocations to be processed consecutively -
146 although we allow then to be processed forwards or backwards. */
147 if (! last_addr)
148 {
149 last_addr = addr;
150 last_symbol_section = symbol_section;
151 return bfd_reloc_ok;
152 }
153 if (last_addr != addr)
154 abort ();
155 last_addr = 0;
156
157 if (! symbol_section || last_symbol_section != symbol_section || end < start)
158 return bfd_reloc_outofrange;
159
160 /* Get the symbol_section contents. */
161 if (symbol_section != input_section)
162 {
163 if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
164 contents = elf_section_data (symbol_section)->this_hdr.contents;
165 else
166 {
167 if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
168 &contents))
169 {
170 free (contents);
171 return bfd_reloc_outofrange;
172 }
173 }
174 }
175 #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
176 start_ptr = contents + start;
177 for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
178 {
179 for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
180 ptr -= 2;
181 ptr += 2;
182 diff = (last_ptr - ptr) >> 1;
183 cum_diff += diff & 1;
184 cum_diff += diff;
185 }
186 /* Calculate the start / end values to load into rs / re minus four -
187 so that will cancel out the four we would otherwise have to add to
188 addr to get the value to subtract in order to get relative addressing. */
189 if (cum_diff >= 0)
190 {
191 start -= 4;
192 end = (ptr + cum_diff * 2) - contents;
193 }
194 else
195 {
196 bfd_vma start0 = start - 4;
197
198 while (start0 && IS_PPI (contents + start0))
199 start0 -= 2;
200 start0 = start - 2 - ((start - start0) & 2);
201 start = start0 - cum_diff - 2;
202 end = start0;
203 }
204
205 if (elf_section_data (symbol_section)->this_hdr.contents != contents)
206 free (contents);
207
208 insn = bfd_get_16 (input_bfd, contents + addr);
209
210 x = (insn & 0x200 ? end : start) - addr;
211 if (input_section != symbol_section)
212 x += ((symbol_section->output_section->vma + symbol_section->output_offset)
213 - (input_section->output_section->vma
214 + input_section->output_offset));
215 x >>= 1;
216 if (x < -128 || x > 127)
217 return bfd_reloc_overflow;
218
219 x = (insn & ~0xff) | (x & 0xff);
220 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
221
222 return bfd_reloc_ok;
223 }
224
225 /* This function is used for normal relocs. This used to be like the COFF
226 function, and is almost certainly incorrect for other ELF targets. */
227
228 static bfd_reloc_status_type
229 sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
230 void *data, asection *input_section, bfd *output_bfd,
231 char **error_message ATTRIBUTE_UNUSED)
232 {
233 bfd_vma insn;
234 bfd_vma sym_value;
235 enum elf_sh_reloc_type r_type;
236 bfd_vma addr = reloc_entry->address;
237 bfd_size_type octets = addr * OCTETS_PER_BYTE (abfd, input_section);
238 bfd_byte *hit_data = (bfd_byte *) data + octets;
239
240 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
241
242 if (output_bfd != NULL)
243 {
244 /* Partial linking--do nothing. */
245 reloc_entry->address += input_section->output_offset;
246 return bfd_reloc_ok;
247 }
248
249 /* Almost all relocs have to do with relaxing. If any work must be
250 done for them, it has been done in sh_relax_section. */
251 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
252 return bfd_reloc_ok;
253
254 if (symbol_in != NULL
255 && bfd_is_und_section (symbol_in->section))
256 return bfd_reloc_undefined;
257
258 /* PR 17512: file: 9891ca98. */
259 if (octets + bfd_get_reloc_size (reloc_entry->howto)
260 > bfd_get_section_limit_octets (abfd, input_section))
261 return bfd_reloc_outofrange;
262
263 if (bfd_is_com_section (symbol_in->section))
264 sym_value = 0;
265 else
266 sym_value = (symbol_in->value +
267 symbol_in->section->output_section->vma +
268 symbol_in->section->output_offset);
269
270 switch (r_type)
271 {
272 case R_SH_DIR32:
273 insn = bfd_get_32 (abfd, hit_data);
274 insn += sym_value + reloc_entry->addend;
275 bfd_put_32 (abfd, insn, hit_data);
276 break;
277 case R_SH_IND12W:
278 insn = bfd_get_16 (abfd, hit_data);
279 sym_value += reloc_entry->addend;
280 sym_value -= (input_section->output_section->vma
281 + input_section->output_offset
282 + addr
283 + 4);
284 sym_value += (((insn & 0xfff) ^ 0x800) - 0x800) << 1;
285 insn = (insn & 0xf000) | ((sym_value >> 1) & 0xfff);
286 bfd_put_16 (abfd, insn, hit_data);
287 if (sym_value + 0x1000 >= 0x2000 || (sym_value & 1) != 0)
288 return bfd_reloc_overflow;
289 break;
290 default:
291 abort ();
292 break;
293 }
294
295 return bfd_reloc_ok;
296 }
297
298 /* This function is used for relocs which are only used for relaxing,
299 which the linker should otherwise ignore. */
300
301 static bfd_reloc_status_type
302 sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
303 asymbol *symbol ATTRIBUTE_UNUSED,
304 void *data ATTRIBUTE_UNUSED, asection *input_section,
305 bfd *output_bfd,
306 char **error_message ATTRIBUTE_UNUSED)
307 {
308 if (output_bfd != NULL)
309 reloc_entry->address += input_section->output_offset;
310 return bfd_reloc_ok;
311 }
312
313 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
314
315 struct elf_reloc_map
316 {
317 bfd_reloc_code_real_type bfd_reloc_val;
318 unsigned char elf_reloc_val;
319 };
320
321 /* An array mapping BFD reloc codes to SH ELF relocs. */
322
323 static const struct elf_reloc_map sh_reloc_map[] =
324 {
325 { BFD_RELOC_NONE, R_SH_NONE },
326 { BFD_RELOC_32, R_SH_DIR32 },
327 { BFD_RELOC_16, R_SH_DIR16 },
328 { BFD_RELOC_8, R_SH_DIR8 },
329 { BFD_RELOC_CTOR, R_SH_DIR32 },
330 { BFD_RELOC_32_PCREL, R_SH_REL32 },
331 { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
332 { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
333 { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
334 { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
335 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
336 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
337 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
338 { BFD_RELOC_SH_USES, R_SH_USES },
339 { BFD_RELOC_SH_COUNT, R_SH_COUNT },
340 { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
341 { BFD_RELOC_SH_CODE, R_SH_CODE },
342 { BFD_RELOC_SH_DATA, R_SH_DATA },
343 { BFD_RELOC_SH_LABEL, R_SH_LABEL },
344 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
345 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
346 { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
347 { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
348 { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 },
349 { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 },
350 { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 },
351 { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 },
352 { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 },
353 { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 },
354 { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 },
355 { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 },
356 { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
357 { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
358 { BFD_RELOC_SH_COPY, R_SH_COPY },
359 { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
360 { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
361 { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
362 { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
363 { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
364 { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
365 { BFD_RELOC_SH_GOT20, R_SH_GOT20 },
366 { BFD_RELOC_SH_GOTOFF20, R_SH_GOTOFF20 },
367 { BFD_RELOC_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC },
368 { BFD_RELOC_SH_GOTFUNCDESC20, R_SH_GOTFUNCDESC20 },
369 { BFD_RELOC_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC },
370 { BFD_RELOC_SH_GOTOFFFUNCDESC20, R_SH_GOTOFFFUNCDESC20 },
371 { BFD_RELOC_SH_FUNCDESC, R_SH_FUNCDESC },
372 };
373
374 /* Given a BFD reloc code, return the howto structure for the
375 corresponding SH ELF reloc. */
376
377 static reloc_howto_type *
378 sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
379 {
380 unsigned int i;
381
382 for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
383 {
384 if (sh_reloc_map[i].bfd_reloc_val == code)
385 return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val;
386 }
387
388 return NULL;
389 }
390
391 static reloc_howto_type *
392 sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name)
393 {
394 unsigned int i;
395
396 if (vxworks_object_p (abfd))
397 {
398 for (i = 0;
399 i < (sizeof (sh_vxworks_howto_table)
400 / sizeof (sh_vxworks_howto_table[0]));
401 i++)
402 if (sh_vxworks_howto_table[i].name != NULL
403 && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0)
404 return &sh_vxworks_howto_table[i];
405 }
406 else
407 {
408 for (i = 0;
409 i < (sizeof (sh_elf_howto_table)
410 / sizeof (sh_elf_howto_table[0]));
411 i++)
412 if (sh_elf_howto_table[i].name != NULL
413 && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0)
414 return &sh_elf_howto_table[i];
415 }
416
417 return NULL;
418 }
419
420 /* Given an ELF reloc, fill in the howto field of a relent. */
421
422 static bfd_boolean
423 sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
424 {
425 unsigned int r;
426
427 r = ELF32_R_TYPE (dst->r_info);
428
429 if (r >= R_SH_max
430 || (r >= R_SH_FIRST_INVALID_RELOC && r <= R_SH_LAST_INVALID_RELOC)
431 || (r >= R_SH_FIRST_INVALID_RELOC_2 && r <= R_SH_LAST_INVALID_RELOC_2)
432 || (r >= R_SH_FIRST_INVALID_RELOC_3 && r <= R_SH_LAST_INVALID_RELOC_3)
433 || (r >= R_SH_FIRST_INVALID_RELOC_4 && r <= R_SH_LAST_INVALID_RELOC_4)
434 || (r >= R_SH_FIRST_INVALID_RELOC_5 && r <= R_SH_LAST_INVALID_RELOC_5)
435 || (r >= R_SH_FIRST_INVALID_RELOC_6 && r <= R_SH_LAST_INVALID_RELOC_6))
436 {
437 /* xgettext:c-format */
438 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
439 abfd, r);
440 bfd_set_error (bfd_error_bad_value);
441 return FALSE;
442 }
443
444 cache_ptr->howto = get_howto_table (abfd) + r;
445 return TRUE;
446 }
447 \f
448 /* This function handles relaxing for SH ELF. See the corresponding
449 function in coff-sh.c for a description of what this does. FIXME:
450 There is a lot of duplication here between this code and the COFF
451 specific code. The format of relocs and symbols is wound deeply
452 into this code, but it would still be better if the duplication
453 could be eliminated somehow. Note in particular that although both
454 functions use symbols like R_SH_CODE, those symbols have different
455 values; in coff-sh.c they come from include/coff/sh.h, whereas here
456 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
457
458 static bfd_boolean
459 sh_elf_relax_section (bfd *abfd, asection *sec,
460 struct bfd_link_info *link_info, bfd_boolean *again)
461 {
462 Elf_Internal_Shdr *symtab_hdr;
463 Elf_Internal_Rela *internal_relocs;
464 bfd_boolean have_code;
465 Elf_Internal_Rela *irel, *irelend;
466 bfd_byte *contents = NULL;
467 Elf_Internal_Sym *isymbuf = NULL;
468
469 *again = FALSE;
470
471 if (bfd_link_relocatable (link_info)
472 || (sec->flags & SEC_RELOC) == 0
473 || sec->reloc_count == 0)
474 return TRUE;
475
476 symtab_hdr = &elf_symtab_hdr (abfd);
477
478 internal_relocs = (_bfd_elf_link_read_relocs
479 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
480 link_info->keep_memory));
481 if (internal_relocs == NULL)
482 goto error_return;
483
484 have_code = FALSE;
485
486 irelend = internal_relocs + sec->reloc_count;
487 for (irel = internal_relocs; irel < irelend; irel++)
488 {
489 bfd_vma laddr, paddr, symval;
490 unsigned short insn;
491 Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
492 bfd_signed_vma foff;
493
494 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
495 have_code = TRUE;
496
497 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
498 continue;
499
500 /* Get the section contents. */
501 if (contents == NULL)
502 {
503 if (elf_section_data (sec)->this_hdr.contents != NULL)
504 contents = elf_section_data (sec)->this_hdr.contents;
505 else
506 {
507 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
508 goto error_return;
509 }
510 }
511
512 /* The r_addend field of the R_SH_USES reloc will point us to
513 the register load. The 4 is because the r_addend field is
514 computed as though it were a jump offset, which are based
515 from 4 bytes after the jump instruction. */
516 laddr = irel->r_offset + 4 + irel->r_addend;
517 if (laddr >= sec->size)
518 {
519 /* xgettext:c-format */
520 _bfd_error_handler
521 (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES offset"),
522 abfd, (uint64_t) irel->r_offset);
523 continue;
524 }
525 insn = bfd_get_16 (abfd, contents + laddr);
526
527 /* If the instruction is not mov.l NN,rN, we don't know what to
528 do. */
529 if ((insn & 0xf000) != 0xd000)
530 {
531 _bfd_error_handler
532 /* xgettext:c-format */
533 (_("%pB: %#" PRIx64 ": warning: "
534 "R_SH_USES points to unrecognized insn 0x%x"),
535 abfd, (uint64_t) irel->r_offset, insn);
536 continue;
537 }
538
539 /* Get the address from which the register is being loaded. The
540 displacement in the mov.l instruction is quadrupled. It is a
541 displacement from four bytes after the movl instruction, but,
542 before adding in the PC address, two least significant bits
543 of the PC are cleared. We assume that the section is aligned
544 on a four byte boundary. */
545 paddr = insn & 0xff;
546 paddr *= 4;
547 paddr += (laddr + 4) &~ (bfd_vma) 3;
548 if (paddr >= sec->size)
549 {
550 _bfd_error_handler
551 /* xgettext:c-format */
552 (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES load offset"),
553 abfd, (uint64_t) irel->r_offset);
554 continue;
555 }
556
557 /* Get the reloc for the address from which the register is
558 being loaded. This reloc will tell us which function is
559 actually being called. */
560 for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
561 if (irelfn->r_offset == paddr
562 && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
563 break;
564 if (irelfn >= irelend)
565 {
566 _bfd_error_handler
567 /* xgettext:c-format */
568 (_("%pB: %#" PRIx64 ": warning: could not find expected reloc"),
569 abfd, (uint64_t) paddr);
570 continue;
571 }
572
573 /* Read this BFD's symbols if we haven't done so already. */
574 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
575 {
576 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
577 if (isymbuf == NULL)
578 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
579 symtab_hdr->sh_info, 0,
580 NULL, NULL, NULL);
581 if (isymbuf == NULL)
582 goto error_return;
583 }
584
585 /* Get the value of the symbol referred to by the reloc. */
586 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
587 {
588 /* A local symbol. */
589 Elf_Internal_Sym *isym;
590
591 isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
592 if (isym->st_shndx
593 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
594 {
595 _bfd_error_handler
596 /* xgettext:c-format */
597 (_("%pB: %#" PRIx64 ": warning: symbol in unexpected section"),
598 abfd, (uint64_t) paddr);
599 continue;
600 }
601
602 symval = (isym->st_value
603 + sec->output_section->vma
604 + sec->output_offset);
605 }
606 else
607 {
608 unsigned long indx;
609 struct elf_link_hash_entry *h;
610
611 indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
612 h = elf_sym_hashes (abfd)[indx];
613 BFD_ASSERT (h != NULL);
614 if (h->root.type != bfd_link_hash_defined
615 && h->root.type != bfd_link_hash_defweak)
616 {
617 /* This appears to be a reference to an undefined
618 symbol. Just ignore it--it will be caught by the
619 regular reloc processing. */
620 continue;
621 }
622
623 symval = (h->root.u.def.value
624 + h->root.u.def.section->output_section->vma
625 + h->root.u.def.section->output_offset);
626 }
627
628 if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
629 symval += bfd_get_32 (abfd, contents + paddr);
630 else
631 symval += irelfn->r_addend;
632
633 /* See if this function call can be shortened. */
634 foff = (symval
635 - (irel->r_offset
636 + sec->output_section->vma
637 + sec->output_offset
638 + 4));
639 /* A branch to an address beyond ours might be increased by an
640 .align that doesn't move when bytes behind us are deleted.
641 So, we add some slop in this calculation to allow for
642 that. */
643 if (foff < -0x1000 || foff >= 0x1000 - 8)
644 {
645 /* After all that work, we can't shorten this function call. */
646 continue;
647 }
648
649 /* Shorten the function call. */
650
651 /* For simplicity of coding, we are going to modify the section
652 contents, the section relocs, and the BFD symbol table. We
653 must tell the rest of the code not to free up this
654 information. It would be possible to instead create a table
655 of changes which have to be made, as is done in coff-mips.c;
656 that would be more work, but would require less memory when
657 the linker is run. */
658
659 elf_section_data (sec)->relocs = internal_relocs;
660 elf_section_data (sec)->this_hdr.contents = contents;
661 symtab_hdr->contents = (unsigned char *) isymbuf;
662
663 /* Replace the jmp/jsr with a bra/bsr. */
664
665 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
666 replace the jmp/jsr with a bra/bsr. */
667 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
668 /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
669 here, but that only checks if the symbol is an external symbol,
670 not if the symbol is in a different section. Besides, we need
671 a consistent meaning for the relocation, so we just assume here that
672 the value of the symbol is not available. */
673
674 /* We can't fully resolve this yet, because the external
675 symbol value may be changed by future relaxing. We let
676 the final link phase handle it. */
677 if (bfd_get_16 (abfd, contents + irel->r_offset) & 0x0020)
678 bfd_put_16 (abfd, (bfd_vma) 0xa000, contents + irel->r_offset);
679 else
680 bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
681
682 irel->r_addend = -4;
683
684 /* When we calculated the symbol "value" we had an offset in the
685 DIR32's word in memory (we read and add it above). However,
686 the jsr we create does NOT have this offset encoded, so we
687 have to add it to the addend to preserve it. */
688 irel->r_addend += bfd_get_32 (abfd, contents + paddr);
689
690 /* See if there is another R_SH_USES reloc referring to the same
691 register load. */
692 for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
693 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
694 && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
695 break;
696 if (irelscan < irelend)
697 {
698 /* Some other function call depends upon this register load,
699 and we have not yet converted that function call.
700 Indeed, we may never be able to convert it. There is
701 nothing else we can do at this point. */
702 continue;
703 }
704
705 /* Look for a R_SH_COUNT reloc on the location where the
706 function address is stored. Do this before deleting any
707 bytes, to avoid confusion about the address. */
708 for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
709 if (irelcount->r_offset == paddr
710 && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
711 break;
712
713 /* Delete the register load. */
714 if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
715 goto error_return;
716
717 /* That will change things, so, just in case it permits some
718 other function call to come within range, we should relax
719 again. Note that this is not required, and it may be slow. */
720 *again = TRUE;
721
722 /* Now check whether we got a COUNT reloc. */
723 if (irelcount >= irelend)
724 {
725 _bfd_error_handler
726 /* xgettext:c-format */
727 (_("%pB: %#" PRIx64 ": warning: "
728 "could not find expected COUNT reloc"),
729 abfd, (uint64_t) paddr);
730 continue;
731 }
732
733 /* The number of uses is stored in the r_addend field. We've
734 just deleted one. */
735 if (irelcount->r_addend == 0)
736 {
737 /* xgettext:c-format */
738 _bfd_error_handler (_("%pB: %#" PRIx64 ": warning: bad count"),
739 abfd, (uint64_t) paddr);
740 continue;
741 }
742
743 --irelcount->r_addend;
744
745 /* If there are no more uses, we can delete the address. Reload
746 the address from irelfn, in case it was changed by the
747 previous call to sh_elf_relax_delete_bytes. */
748 if (irelcount->r_addend == 0)
749 {
750 if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
751 goto error_return;
752 }
753
754 /* We've done all we can with that function call. */
755 }
756
757 /* Look for load and store instructions that we can align on four
758 byte boundaries. */
759 if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4
760 && have_code)
761 {
762 bfd_boolean swapped;
763
764 /* Get the section contents. */
765 if (contents == NULL)
766 {
767 if (elf_section_data (sec)->this_hdr.contents != NULL)
768 contents = elf_section_data (sec)->this_hdr.contents;
769 else
770 {
771 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
772 goto error_return;
773 }
774 }
775
776 if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
777 &swapped))
778 goto error_return;
779
780 if (swapped)
781 {
782 elf_section_data (sec)->relocs = internal_relocs;
783 elf_section_data (sec)->this_hdr.contents = contents;
784 symtab_hdr->contents = (unsigned char *) isymbuf;
785 }
786 }
787
788 if (isymbuf != NULL
789 && symtab_hdr->contents != (unsigned char *) isymbuf)
790 {
791 if (! link_info->keep_memory)
792 free (isymbuf);
793 else
794 {
795 /* Cache the symbols for elf_link_input_bfd. */
796 symtab_hdr->contents = (unsigned char *) isymbuf;
797 }
798 }
799
800 if (contents != NULL
801 && elf_section_data (sec)->this_hdr.contents != contents)
802 {
803 if (! link_info->keep_memory)
804 free (contents);
805 else
806 {
807 /* Cache the section contents for elf_link_input_bfd. */
808 elf_section_data (sec)->this_hdr.contents = contents;
809 }
810 }
811
812 if (elf_section_data (sec)->relocs != internal_relocs)
813 free (internal_relocs);
814
815 return TRUE;
816
817 error_return:
818 if (symtab_hdr->contents != (unsigned char *) isymbuf)
819 free (isymbuf);
820 if (elf_section_data (sec)->this_hdr.contents != contents)
821 free (contents);
822 if (elf_section_data (sec)->relocs != internal_relocs)
823 free (internal_relocs);
824
825 return FALSE;
826 }
827
828 /* Delete some bytes from a section while relaxing. FIXME: There is a
829 lot of duplication between this function and sh_relax_delete_bytes
830 in coff-sh.c. */
831
832 static bfd_boolean
833 sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
834 int count)
835 {
836 Elf_Internal_Shdr *symtab_hdr;
837 unsigned int sec_shndx;
838 bfd_byte *contents;
839 Elf_Internal_Rela *irel, *irelend;
840 Elf_Internal_Rela *irelalign;
841 bfd_vma toaddr;
842 Elf_Internal_Sym *isymbuf, *isym, *isymend;
843 struct elf_link_hash_entry **sym_hashes;
844 struct elf_link_hash_entry **end_hashes;
845 unsigned int symcount;
846 asection *o;
847
848 symtab_hdr = &elf_symtab_hdr (abfd);
849 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
850
851 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
852
853 contents = elf_section_data (sec)->this_hdr.contents;
854
855 /* The deletion must stop at the next ALIGN reloc for an alignment
856 power larger than the number of bytes we are deleting. */
857
858 irelalign = NULL;
859 toaddr = sec->size;
860
861 irel = elf_section_data (sec)->relocs;
862 irelend = irel + sec->reloc_count;
863 for (; irel < irelend; irel++)
864 {
865 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
866 && irel->r_offset > addr
867 && count < (1 << irel->r_addend))
868 {
869 irelalign = irel;
870 toaddr = irel->r_offset;
871 break;
872 }
873 }
874
875 /* Actually delete the bytes. */
876 memmove (contents + addr, contents + addr + count,
877 (size_t) (toaddr - addr - count));
878 if (irelalign == NULL)
879 sec->size -= count;
880 else
881 {
882 int i;
883
884 #define NOP_OPCODE (0x0009)
885
886 BFD_ASSERT ((count & 1) == 0);
887 for (i = 0; i < count; i += 2)
888 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
889 }
890
891 /* Adjust all the relocs. */
892 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
893 {
894 bfd_vma nraddr, stop;
895 bfd_vma start = 0;
896 int insn = 0;
897 int off, adjust, oinsn;
898 bfd_signed_vma voff = 0;
899 bfd_boolean overflow;
900
901 /* Get the new reloc address. */
902 nraddr = irel->r_offset;
903 if ((irel->r_offset > addr
904 && irel->r_offset < toaddr)
905 || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
906 && irel->r_offset == toaddr))
907 nraddr -= count;
908
909 /* See if this reloc was for the bytes we have deleted, in which
910 case we no longer care about it. Don't delete relocs which
911 represent addresses, though. */
912 if (irel->r_offset >= addr
913 && irel->r_offset < addr + count
914 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
915 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
916 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
917 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
918 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
919 (int) R_SH_NONE);
920
921 /* If this is a PC relative reloc, see if the range it covers
922 includes the bytes we have deleted. */
923 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
924 {
925 default:
926 break;
927
928 case R_SH_DIR8WPN:
929 case R_SH_IND12W:
930 case R_SH_DIR8WPZ:
931 case R_SH_DIR8WPL:
932 start = irel->r_offset;
933 insn = bfd_get_16 (abfd, contents + nraddr);
934 break;
935 }
936
937 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
938 {
939 default:
940 start = stop = addr;
941 break;
942
943 case R_SH_DIR32:
944 /* If this reloc is against a symbol defined in this
945 section, and the symbol will not be adjusted below, we
946 must check the addend to see it will put the value in
947 range to be adjusted, and hence must be changed. */
948 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
949 {
950 isym = isymbuf + ELF32_R_SYM (irel->r_info);
951 if (isym->st_shndx == sec_shndx
952 && (isym->st_value <= addr
953 || isym->st_value >= toaddr))
954 {
955 bfd_vma val;
956
957 if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
958 {
959 val = bfd_get_32 (abfd, contents + nraddr);
960 val += isym->st_value;
961 if (val > addr && val < toaddr)
962 bfd_put_32 (abfd, val - count, contents + nraddr);
963 }
964 else
965 {
966 val = isym->st_value + irel->r_addend;
967 if (val > addr && val < toaddr)
968 irel->r_addend -= count;
969 }
970 }
971 }
972 start = stop = addr;
973 break;
974
975 case R_SH_DIR8WPN:
976 off = insn & 0xff;
977 if (off & 0x80)
978 off -= 0x100;
979 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
980 break;
981
982 case R_SH_IND12W:
983 off = insn & 0xfff;
984 if (! off)
985 {
986 /* This has been made by previous relaxation. Since the
987 relocation will be against an external symbol, the
988 final relocation will just do the right thing. */
989 start = stop = addr;
990 }
991 else
992 {
993 if (off & 0x800)
994 off -= 0x1000;
995 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
996
997 /* The addend will be against the section symbol, thus
998 for adjusting the addend, the relevant start is the
999 start of the section.
1000 N.B. If we want to abandon in-place changes here and
1001 test directly using symbol + addend, we have to take into
1002 account that the addend has already been adjusted by -4. */
1003 if (stop > addr && stop < toaddr)
1004 irel->r_addend -= count;
1005 }
1006 break;
1007
1008 case R_SH_DIR8WPZ:
1009 off = insn & 0xff;
1010 stop = start + 4 + off * 2;
1011 break;
1012
1013 case R_SH_DIR8WPL:
1014 off = insn & 0xff;
1015 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
1016 break;
1017
1018 case R_SH_SWITCH8:
1019 case R_SH_SWITCH16:
1020 case R_SH_SWITCH32:
1021 /* These relocs types represent
1022 .word L2-L1
1023 The r_addend field holds the difference between the reloc
1024 address and L1. That is the start of the reloc, and
1025 adding in the contents gives us the top. We must adjust
1026 both the r_offset field and the section contents.
1027 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1028 and the elf bfd r_offset is called r_vaddr. */
1029
1030 stop = irel->r_offset;
1031 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
1032
1033 if (start > addr
1034 && start < toaddr
1035 && (stop <= addr || stop >= toaddr))
1036 irel->r_addend += count;
1037 else if (stop > addr
1038 && stop < toaddr
1039 && (start <= addr || start >= toaddr))
1040 irel->r_addend -= count;
1041
1042 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
1043 voff = bfd_get_signed_16 (abfd, contents + nraddr);
1044 else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
1045 voff = bfd_get_8 (abfd, contents + nraddr);
1046 else
1047 voff = bfd_get_signed_32 (abfd, contents + nraddr);
1048 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1049
1050 break;
1051
1052 case R_SH_USES:
1053 start = irel->r_offset;
1054 stop = (bfd_vma) ((bfd_signed_vma) start
1055 + (long) irel->r_addend
1056 + 4);
1057 break;
1058 }
1059
1060 if (start > addr
1061 && start < toaddr
1062 && (stop <= addr || stop >= toaddr))
1063 adjust = count;
1064 else if (stop > addr
1065 && stop < toaddr
1066 && (start <= addr || start >= toaddr))
1067 adjust = - count;
1068 else
1069 adjust = 0;
1070
1071 if (adjust != 0)
1072 {
1073 oinsn = insn;
1074 overflow = FALSE;
1075 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
1076 {
1077 default:
1078 abort ();
1079 break;
1080
1081 case R_SH_DIR8WPN:
1082 case R_SH_DIR8WPZ:
1083 insn += adjust / 2;
1084 if ((oinsn & 0xff00) != (insn & 0xff00))
1085 overflow = TRUE;
1086 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1087 break;
1088
1089 case R_SH_IND12W:
1090 insn += adjust / 2;
1091 if ((oinsn & 0xf000) != (insn & 0xf000))
1092 overflow = TRUE;
1093 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1094 break;
1095
1096 case R_SH_DIR8WPL:
1097 BFD_ASSERT (adjust == count || count >= 4);
1098 if (count >= 4)
1099 insn += adjust / 4;
1100 else
1101 {
1102 if ((irel->r_offset & 3) == 0)
1103 ++insn;
1104 }
1105 if ((oinsn & 0xff00) != (insn & 0xff00))
1106 overflow = TRUE;
1107 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1108 break;
1109
1110 case R_SH_SWITCH8:
1111 voff += adjust;
1112 if (voff < 0 || voff >= 0xff)
1113 overflow = TRUE;
1114 bfd_put_8 (abfd, voff, contents + nraddr);
1115 break;
1116
1117 case R_SH_SWITCH16:
1118 voff += adjust;
1119 if (voff < - 0x8000 || voff >= 0x8000)
1120 overflow = TRUE;
1121 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
1122 break;
1123
1124 case R_SH_SWITCH32:
1125 voff += adjust;
1126 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
1127 break;
1128
1129 case R_SH_USES:
1130 irel->r_addend += adjust;
1131 break;
1132 }
1133
1134 if (overflow)
1135 {
1136 _bfd_error_handler
1137 /* xgettext:c-format */
1138 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1139 abfd, (uint64_t) irel->r_offset);
1140 bfd_set_error (bfd_error_bad_value);
1141 return FALSE;
1142 }
1143 }
1144
1145 irel->r_offset = nraddr;
1146 }
1147
1148 /* Look through all the other sections. If there contain any IMM32
1149 relocs against internal symbols which we are not going to adjust
1150 below, we may need to adjust the addends. */
1151 for (o = abfd->sections; o != NULL; o = o->next)
1152 {
1153 Elf_Internal_Rela *internal_relocs;
1154 Elf_Internal_Rela *irelscan, *irelscanend;
1155 bfd_byte *ocontents;
1156
1157 if (o == sec
1158 || (o->flags & SEC_RELOC) == 0
1159 || o->reloc_count == 0)
1160 continue;
1161
1162 /* We always cache the relocs. Perhaps, if info->keep_memory is
1163 FALSE, we should free them, if we are permitted to, when we
1164 leave sh_coff_relax_section. */
1165 internal_relocs = (_bfd_elf_link_read_relocs
1166 (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
1167 if (internal_relocs == NULL)
1168 return FALSE;
1169
1170 ocontents = NULL;
1171 irelscanend = internal_relocs + o->reloc_count;
1172 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
1173 {
1174 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
1175 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
1176 {
1177 bfd_vma start, stop;
1178 bfd_signed_vma voff;
1179
1180 if (ocontents == NULL)
1181 {
1182 if (elf_section_data (o)->this_hdr.contents != NULL)
1183 ocontents = elf_section_data (o)->this_hdr.contents;
1184 else
1185 {
1186 /* We always cache the section contents.
1187 Perhaps, if info->keep_memory is FALSE, we
1188 should free them, if we are permitted to,
1189 when we leave sh_coff_relax_section. */
1190 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1191 {
1192 free (ocontents);
1193 return FALSE;
1194 }
1195
1196 elf_section_data (o)->this_hdr.contents = ocontents;
1197 }
1198 }
1199
1200 stop = irelscan->r_offset;
1201 start
1202 = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
1203
1204 /* STOP is in a different section, so it won't change. */
1205 if (start > addr && start < toaddr)
1206 irelscan->r_addend += count;
1207
1208 voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
1209 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1210
1211 if (start > addr
1212 && start < toaddr
1213 && (stop <= addr || stop >= toaddr))
1214 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
1215 ocontents + irelscan->r_offset);
1216 else if (stop > addr
1217 && stop < toaddr
1218 && (start <= addr || start >= toaddr))
1219 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
1220 ocontents + irelscan->r_offset);
1221 }
1222
1223 if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
1224 continue;
1225
1226 if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
1227 continue;
1228
1229
1230 isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
1231 if (isym->st_shndx == sec_shndx
1232 && (isym->st_value <= addr
1233 || isym->st_value >= toaddr))
1234 {
1235 bfd_vma val;
1236
1237 if (ocontents == NULL)
1238 {
1239 if (elf_section_data (o)->this_hdr.contents != NULL)
1240 ocontents = elf_section_data (o)->this_hdr.contents;
1241 else
1242 {
1243 /* We always cache the section contents.
1244 Perhaps, if info->keep_memory is FALSE, we
1245 should free them, if we are permitted to,
1246 when we leave sh_coff_relax_section. */
1247 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1248 {
1249 free (ocontents);
1250 return FALSE;
1251 }
1252
1253 elf_section_data (o)->this_hdr.contents = ocontents;
1254 }
1255 }
1256
1257 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
1258 val += isym->st_value;
1259 if (val > addr && val < toaddr)
1260 bfd_put_32 (abfd, val - count,
1261 ocontents + irelscan->r_offset);
1262 }
1263 }
1264 }
1265
1266 /* Adjust the local symbols defined in this section. */
1267 isymend = isymbuf + symtab_hdr->sh_info;
1268 for (isym = isymbuf; isym < isymend; isym++)
1269 {
1270 if (isym->st_shndx == sec_shndx
1271 && isym->st_value > addr
1272 && isym->st_value < toaddr)
1273 isym->st_value -= count;
1274 }
1275
1276 /* Now adjust the global symbols defined in this section. */
1277 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1278 - symtab_hdr->sh_info);
1279 sym_hashes = elf_sym_hashes (abfd);
1280 end_hashes = sym_hashes + symcount;
1281 for (; sym_hashes < end_hashes; sym_hashes++)
1282 {
1283 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1284 if ((sym_hash->root.type == bfd_link_hash_defined
1285 || sym_hash->root.type == bfd_link_hash_defweak)
1286 && sym_hash->root.u.def.section == sec
1287 && sym_hash->root.u.def.value > addr
1288 && sym_hash->root.u.def.value < toaddr)
1289 {
1290 sym_hash->root.u.def.value -= count;
1291 }
1292 }
1293
1294 /* See if we can move the ALIGN reloc forward. We have adjusted
1295 r_offset for it already. */
1296 if (irelalign != NULL)
1297 {
1298 bfd_vma alignto, alignaddr;
1299
1300 alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
1301 alignaddr = BFD_ALIGN (irelalign->r_offset,
1302 1 << irelalign->r_addend);
1303 if (alignto != alignaddr)
1304 {
1305 /* Tail recursion. */
1306 return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
1307 (int) (alignto - alignaddr));
1308 }
1309 }
1310
1311 return TRUE;
1312 }
1313
1314 /* Look for loads and stores which we can align to four byte
1315 boundaries. This is like sh_align_loads in coff-sh.c. */
1316
1317 static bfd_boolean
1318 sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
1319 Elf_Internal_Rela *internal_relocs,
1320 bfd_byte *contents ATTRIBUTE_UNUSED,
1321 bfd_boolean *pswapped)
1322 {
1323 Elf_Internal_Rela *irel, *irelend;
1324 bfd_vma *labels = NULL;
1325 bfd_vma *label, *label_end;
1326 bfd_size_type amt;
1327
1328 *pswapped = FALSE;
1329
1330 irelend = internal_relocs + sec->reloc_count;
1331
1332 /* Get all the addresses with labels on them. */
1333 amt = sec->reloc_count;
1334 amt *= sizeof (bfd_vma);
1335 labels = (bfd_vma *) bfd_malloc (amt);
1336 if (labels == NULL)
1337 goto error_return;
1338 label_end = labels;
1339 for (irel = internal_relocs; irel < irelend; irel++)
1340 {
1341 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
1342 {
1343 *label_end = irel->r_offset;
1344 ++label_end;
1345 }
1346 }
1347
1348 /* Note that the assembler currently always outputs relocs in
1349 address order. If that ever changes, this code will need to sort
1350 the label values and the relocs. */
1351
1352 label = labels;
1353
1354 for (irel = internal_relocs; irel < irelend; irel++)
1355 {
1356 bfd_vma start, stop;
1357
1358 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
1359 continue;
1360
1361 start = irel->r_offset;
1362
1363 for (irel++; irel < irelend; irel++)
1364 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
1365 break;
1366 if (irel < irelend)
1367 stop = irel->r_offset;
1368 else
1369 stop = sec->size;
1370
1371 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
1372 internal_relocs, &label,
1373 label_end, start, stop, pswapped))
1374 goto error_return;
1375 }
1376
1377 free (labels);
1378
1379 return TRUE;
1380
1381 error_return:
1382 free (labels);
1383 return FALSE;
1384 }
1385
1386 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1387
1388 static bfd_boolean
1389 sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
1390 bfd_byte *contents, bfd_vma addr)
1391 {
1392 Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
1393 unsigned short i1, i2;
1394 Elf_Internal_Rela *irel, *irelend;
1395
1396 /* Swap the instructions themselves. */
1397 i1 = bfd_get_16 (abfd, contents + addr);
1398 i2 = bfd_get_16 (abfd, contents + addr + 2);
1399 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
1400 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
1401
1402 /* Adjust all reloc addresses. */
1403 irelend = internal_relocs + sec->reloc_count;
1404 for (irel = internal_relocs; irel < irelend; irel++)
1405 {
1406 enum elf_sh_reloc_type type;
1407 int add;
1408
1409 /* There are a few special types of relocs that we don't want to
1410 adjust. These relocs do not apply to the instruction itself,
1411 but are only associated with the address. */
1412 type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
1413 if (type == R_SH_ALIGN
1414 || type == R_SH_CODE
1415 || type == R_SH_DATA
1416 || type == R_SH_LABEL)
1417 continue;
1418
1419 /* If an R_SH_USES reloc points to one of the addresses being
1420 swapped, we must adjust it. It would be incorrect to do this
1421 for a jump, though, since we want to execute both
1422 instructions after the jump. (We have avoided swapping
1423 around a label, so the jump will not wind up executing an
1424 instruction it shouldn't). */
1425 if (type == R_SH_USES)
1426 {
1427 bfd_vma off;
1428
1429 off = irel->r_offset + 4 + irel->r_addend;
1430 if (off == addr)
1431 irel->r_offset += 2;
1432 else if (off == addr + 2)
1433 irel->r_offset -= 2;
1434 }
1435
1436 if (irel->r_offset == addr)
1437 {
1438 irel->r_offset += 2;
1439 add = -2;
1440 }
1441 else if (irel->r_offset == addr + 2)
1442 {
1443 irel->r_offset -= 2;
1444 add = 2;
1445 }
1446 else
1447 add = 0;
1448
1449 if (add != 0)
1450 {
1451 bfd_byte *loc;
1452 unsigned short insn, oinsn;
1453 bfd_boolean overflow;
1454
1455 loc = contents + irel->r_offset;
1456 overflow = FALSE;
1457 switch (type)
1458 {
1459 default:
1460 break;
1461
1462 case R_SH_DIR8WPN:
1463 case R_SH_DIR8WPZ:
1464 insn = bfd_get_16 (abfd, loc);
1465 oinsn = insn;
1466 insn += add / 2;
1467 if ((oinsn & 0xff00) != (insn & 0xff00))
1468 overflow = TRUE;
1469 bfd_put_16 (abfd, (bfd_vma) insn, loc);
1470 break;
1471
1472 case R_SH_IND12W:
1473 insn = bfd_get_16 (abfd, loc);
1474 oinsn = insn;
1475 insn += add / 2;
1476 if ((oinsn & 0xf000) != (insn & 0xf000))
1477 overflow = TRUE;
1478 bfd_put_16 (abfd, (bfd_vma) insn, loc);
1479 break;
1480
1481 case R_SH_DIR8WPL:
1482 /* This reloc ignores the least significant 3 bits of
1483 the program counter before adding in the offset.
1484 This means that if ADDR is at an even address, the
1485 swap will not affect the offset. If ADDR is an at an
1486 odd address, then the instruction will be crossing a
1487 four byte boundary, and must be adjusted. */
1488 if ((addr & 3) != 0)
1489 {
1490 insn = bfd_get_16 (abfd, loc);
1491 oinsn = insn;
1492 insn += add / 2;
1493 if ((oinsn & 0xff00) != (insn & 0xff00))
1494 overflow = TRUE;
1495 bfd_put_16 (abfd, (bfd_vma) insn, loc);
1496 }
1497
1498 break;
1499 }
1500
1501 if (overflow)
1502 {
1503 _bfd_error_handler
1504 /* xgettext:c-format */
1505 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1506 abfd, (uint64_t) irel->r_offset);
1507 bfd_set_error (bfd_error_bad_value);
1508 return FALSE;
1509 }
1510 }
1511 }
1512
1513 return TRUE;
1514 }
1515 \f
1516 /* Describes one of the various PLT styles. */
1517
1518 struct elf_sh_plt_info
1519 {
1520 /* The template for the first PLT entry, or NULL if there is no special
1521 first entry. */
1522 const bfd_byte *plt0_entry;
1523
1524 /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
1525 bfd_vma plt0_entry_size;
1526
1527 /* Index I is the offset into PLT0_ENTRY of a pointer to
1528 _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
1529 if there is no such pointer. */
1530 bfd_vma plt0_got_fields[3];
1531
1532 /* The template for a symbol's PLT entry. */
1533 const bfd_byte *symbol_entry;
1534
1535 /* The size of SYMBOL_ENTRY in bytes. */
1536 bfd_vma symbol_entry_size;
1537
1538 /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
1539 on all targets. The comments by each member indicate the value
1540 that the field must hold. */
1541 struct {
1542 bfd_vma got_entry; /* the address of the symbol's .got.plt entry */
1543 bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */
1544 bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */
1545 bfd_boolean got20; /* TRUE if got_entry points to a movi20
1546 instruction (instead of a constant pool
1547 entry). */
1548 } symbol_fields;
1549
1550 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1551 bfd_vma symbol_resolve_offset;
1552
1553 /* A different PLT layout which can be used for the first
1554 MAX_SHORT_PLT entries. It must share the same plt0. NULL in
1555 other cases. */
1556 const struct elf_sh_plt_info *short_plt;
1557 };
1558
1559 /* The size in bytes of an entry in the procedure linkage table. */
1560
1561 #define ELF_PLT_ENTRY_SIZE 28
1562
1563 /* First entry in an absolute procedure linkage table look like this. */
1564
1565 /* Note - this code has been "optimised" not to use r2. r2 is used by
1566 GCC to return the address of large structures, so it should not be
1567 corrupted here. This does mean however, that this PLT does not conform
1568 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
1569 and r2 contains the GOT id. This version stores the GOT id in r0 and
1570 ignores the type. Loaders can easily detect this difference however,
1571 since the type will always be 0 or 8, and the GOT ids will always be
1572 greater than or equal to 12. */
1573 static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
1574 {
1575 0xd0, 0x05, /* mov.l 2f,r0 */
1576 0x60, 0x02, /* mov.l @r0,r0 */
1577 0x2f, 0x06, /* mov.l r0,@-r15 */
1578 0xd0, 0x03, /* mov.l 1f,r0 */
1579 0x60, 0x02, /* mov.l @r0,r0 */
1580 0x40, 0x2b, /* jmp @r0 */
1581 0x60, 0xf6, /* mov.l @r15+,r0 */
1582 0x00, 0x09, /* nop */
1583 0x00, 0x09, /* nop */
1584 0x00, 0x09, /* nop */
1585 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1586 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1587 };
1588
1589 static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
1590 {
1591 0x05, 0xd0, /* mov.l 2f,r0 */
1592 0x02, 0x60, /* mov.l @r0,r0 */
1593 0x06, 0x2f, /* mov.l r0,@-r15 */
1594 0x03, 0xd0, /* mov.l 1f,r0 */
1595 0x02, 0x60, /* mov.l @r0,r0 */
1596 0x2b, 0x40, /* jmp @r0 */
1597 0xf6, 0x60, /* mov.l @r15+,r0 */
1598 0x09, 0x00, /* nop */
1599 0x09, 0x00, /* nop */
1600 0x09, 0x00, /* nop */
1601 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1602 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1603 };
1604
1605 /* Sebsequent entries in an absolute procedure linkage table look like
1606 this. */
1607
1608 static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1609 {
1610 0xd0, 0x04, /* mov.l 1f,r0 */
1611 0x60, 0x02, /* mov.l @(r0,r12),r0 */
1612 0xd1, 0x02, /* mov.l 0f,r1 */
1613 0x40, 0x2b, /* jmp @r0 */
1614 0x60, 0x13, /* mov r1,r0 */
1615 0xd1, 0x03, /* mov.l 2f,r1 */
1616 0x40, 0x2b, /* jmp @r0 */
1617 0x00, 0x09, /* nop */
1618 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1619 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1620 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1621 };
1622
1623 static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1624 {
1625 0x04, 0xd0, /* mov.l 1f,r0 */
1626 0x02, 0x60, /* mov.l @r0,r0 */
1627 0x02, 0xd1, /* mov.l 0f,r1 */
1628 0x2b, 0x40, /* jmp @r0 */
1629 0x13, 0x60, /* mov r1,r0 */
1630 0x03, 0xd1, /* mov.l 2f,r1 */
1631 0x2b, 0x40, /* jmp @r0 */
1632 0x09, 0x00, /* nop */
1633 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1634 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1635 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1636 };
1637
1638 /* Entries in a PIC procedure linkage table look like this. */
1639
1640 static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1641 {
1642 0xd0, 0x04, /* mov.l 1f,r0 */
1643 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1644 0x40, 0x2b, /* jmp @r0 */
1645 0x00, 0x09, /* nop */
1646 0x50, 0xc2, /* mov.l @(8,r12),r0 */
1647 0xd1, 0x03, /* mov.l 2f,r1 */
1648 0x40, 0x2b, /* jmp @r0 */
1649 0x50, 0xc1, /* mov.l @(4,r12),r0 */
1650 0x00, 0x09, /* nop */
1651 0x00, 0x09, /* nop */
1652 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1653 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1654 };
1655
1656 static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1657 {
1658 0x04, 0xd0, /* mov.l 1f,r0 */
1659 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1660 0x2b, 0x40, /* jmp @r0 */
1661 0x09, 0x00, /* nop */
1662 0xc2, 0x50, /* mov.l @(8,r12),r0 */
1663 0x03, 0xd1, /* mov.l 2f,r1 */
1664 0x2b, 0x40, /* jmp @r0 */
1665 0xc1, 0x50, /* mov.l @(4,r12),r0 */
1666 0x09, 0x00, /* nop */
1667 0x09, 0x00, /* nop */
1668 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1669 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1670 };
1671
1672 static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
1673 {
1674 {
1675 /* Big-endian non-PIC. */
1676 elf_sh_plt0_entry_be,
1677 ELF_PLT_ENTRY_SIZE,
1678 { MINUS_ONE, 24, 20 },
1679 elf_sh_plt_entry_be,
1680 ELF_PLT_ENTRY_SIZE,
1681 { 20, 16, 24, FALSE },
1682 8,
1683 NULL
1684 },
1685 {
1686 /* Little-endian non-PIC. */
1687 elf_sh_plt0_entry_le,
1688 ELF_PLT_ENTRY_SIZE,
1689 { MINUS_ONE, 24, 20 },
1690 elf_sh_plt_entry_le,
1691 ELF_PLT_ENTRY_SIZE,
1692 { 20, 16, 24, FALSE },
1693 8,
1694 NULL
1695 },
1696 },
1697 {
1698 {
1699 /* Big-endian PIC. */
1700 elf_sh_plt0_entry_be,
1701 ELF_PLT_ENTRY_SIZE,
1702 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1703 elf_sh_pic_plt_entry_be,
1704 ELF_PLT_ENTRY_SIZE,
1705 { 20, MINUS_ONE, 24, FALSE },
1706 8,
1707 NULL
1708 },
1709 {
1710 /* Little-endian PIC. */
1711 elf_sh_plt0_entry_le,
1712 ELF_PLT_ENTRY_SIZE,
1713 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1714 elf_sh_pic_plt_entry_le,
1715 ELF_PLT_ENTRY_SIZE,
1716 { 20, MINUS_ONE, 24, FALSE },
1717 8,
1718 NULL
1719 },
1720 }
1721 };
1722
1723 #define VXWORKS_PLT_HEADER_SIZE 12
1724 #define VXWORKS_PLT_ENTRY_SIZE 24
1725
1726 static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] =
1727 {
1728 0xd1, 0x01, /* mov.l @(8,pc),r1 */
1729 0x61, 0x12, /* mov.l @r1,r1 */
1730 0x41, 0x2b, /* jmp @r1 */
1731 0x00, 0x09, /* nop */
1732 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1733 };
1734
1735 static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] =
1736 {
1737 0x01, 0xd1, /* mov.l @(8,pc),r1 */
1738 0x12, 0x61, /* mov.l @r1,r1 */
1739 0x2b, 0x41, /* jmp @r1 */
1740 0x09, 0x00, /* nop */
1741 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1742 };
1743
1744 static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1745 {
1746 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1747 0x60, 0x02, /* mov.l @r0,r0 */
1748 0x40, 0x2b, /* jmp @r0 */
1749 0x00, 0x09, /* nop */
1750 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1751 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1752 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
1753 0x00, 0x09, /* nop */
1754 0x00, 0x09, /* nop */
1755 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1756 };
1757
1758 static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1759 {
1760 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1761 0x02, 0x60, /* mov.l @r0,r0 */
1762 0x2b, 0x40, /* jmp @r0 */
1763 0x09, 0x00, /* nop */
1764 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1765 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1766 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
1767 0x09, 0x00, /* nop */
1768 0x09, 0x00, /* nop */
1769 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1770 };
1771
1772 static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1773 {
1774 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1775 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1776 0x40, 0x2b, /* jmp @r0 */
1777 0x00, 0x09, /* nop */
1778 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1779 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1780 0x51, 0xc2, /* mov.l @(8,r12),r1 */
1781 0x41, 0x2b, /* jmp @r1 */
1782 0x00, 0x09, /* nop */
1783 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1784 };
1785
1786 static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1787 {
1788 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1789 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1790 0x2b, 0x40, /* jmp @r0 */
1791 0x09, 0x00, /* nop */
1792 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1793 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1794 0xc2, 0x51, /* mov.l @(8,r12),r1 */
1795 0x2b, 0x41, /* jmp @r1 */
1796 0x09, 0x00, /* nop */
1797 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1798 };
1799
1800 static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = {
1801 {
1802 {
1803 /* Big-endian non-PIC. */
1804 vxworks_sh_plt0_entry_be,
1805 VXWORKS_PLT_HEADER_SIZE,
1806 { MINUS_ONE, MINUS_ONE, 8 },
1807 vxworks_sh_plt_entry_be,
1808 VXWORKS_PLT_ENTRY_SIZE,
1809 { 8, 14, 20, FALSE },
1810 12,
1811 NULL
1812 },
1813 {
1814 /* Little-endian non-PIC. */
1815 vxworks_sh_plt0_entry_le,
1816 VXWORKS_PLT_HEADER_SIZE,
1817 { MINUS_ONE, MINUS_ONE, 8 },
1818 vxworks_sh_plt_entry_le,
1819 VXWORKS_PLT_ENTRY_SIZE,
1820 { 8, 14, 20, FALSE },
1821 12,
1822 NULL
1823 },
1824 },
1825 {
1826 {
1827 /* Big-endian PIC. */
1828 NULL,
1829 0,
1830 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1831 vxworks_sh_pic_plt_entry_be,
1832 VXWORKS_PLT_ENTRY_SIZE,
1833 { 8, MINUS_ONE, 20, FALSE },
1834 12,
1835 NULL
1836 },
1837 {
1838 /* Little-endian PIC. */
1839 NULL,
1840 0,
1841 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1842 vxworks_sh_pic_plt_entry_le,
1843 VXWORKS_PLT_ENTRY_SIZE,
1844 { 8, MINUS_ONE, 20, FALSE },
1845 12,
1846 NULL
1847 },
1848 }
1849 };
1850
1851 /* FDPIC PLT entries. Two unimplemented optimizations for lazy
1852 binding are to omit the lazy binding stub when linking with -z now
1853 and to move lazy binding stubs into a separate region for better
1854 cache behavior. */
1855
1856 #define FDPIC_PLT_ENTRY_SIZE 28
1857 #define FDPIC_PLT_LAZY_OFFSET 20
1858
1859 /* FIXME: The lazy binding stub requires a plt0 - which may need to be
1860 duplicated if it is out of range, or which can be inlined. So
1861 right now it is always inlined, which wastes a word per stub. It
1862 might be easier to handle the duplication if we put the lazy
1863 stubs separately. */
1864
1865 static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] =
1866 {
1867 0xd0, 0x02, /* mov.l @(12,pc),r0 */
1868 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1869 0x70, 0x04, /* add #4, r0 */
1870 0x41, 0x2b, /* jmp @r1 */
1871 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1872 0x00, 0x09, /* nop */
1873 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1874 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1875 0x60, 0xc2, /* mov.l @r12,r0 */
1876 0x40, 0x2b, /* jmp @r0 */
1877 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1878 0x00, 0x09, /* nop */
1879 };
1880
1881 static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] =
1882 {
1883 0x02, 0xd0, /* mov.l @(12,pc),r0 */
1884 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1885 0x04, 0x70, /* add #4, r0 */
1886 0x2b, 0x41, /* jmp @r1 */
1887 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1888 0x09, 0x00, /* nop */
1889 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1890 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1891 0xc2, 0x60, /* mov.l @r12,r0 */
1892 0x2b, 0x40, /* jmp @r0 */
1893 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1894 0x09, 0x00, /* nop */
1895 };
1896
1897 static const struct elf_sh_plt_info fdpic_sh_plts[2] = {
1898 {
1899 /* Big-endian PIC. */
1900 NULL,
1901 0,
1902 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1903 fdpic_sh_plt_entry_be,
1904 FDPIC_PLT_ENTRY_SIZE,
1905 { 12, MINUS_ONE, 16, FALSE },
1906 FDPIC_PLT_LAZY_OFFSET,
1907 NULL
1908 },
1909 {
1910 /* Little-endian PIC. */
1911 NULL,
1912 0,
1913 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1914 fdpic_sh_plt_entry_le,
1915 FDPIC_PLT_ENTRY_SIZE,
1916 { 12, MINUS_ONE, 16, FALSE },
1917 FDPIC_PLT_LAZY_OFFSET,
1918 NULL
1919 },
1920 };
1921
1922 /* On SH2A, we can use the movi20 instruction to generate shorter PLT
1923 entries for the first 64K slots. We use the normal FDPIC PLT entry
1924 past that point; we could also use movi20s, which might be faster,
1925 but would not be any smaller. */
1926
1927 #define FDPIC_SH2A_PLT_ENTRY_SIZE 24
1928 #define FDPIC_SH2A_PLT_LAZY_OFFSET 16
1929
1930 static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1931 {
1932 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1933 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1934 0x70, 0x04, /* add #4, r0 */
1935 0x41, 0x2b, /* jmp @r1 */
1936 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1937 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1938 0x60, 0xc2, /* mov.l @r12,r0 */
1939 0x40, 0x2b, /* jmp @r0 */
1940 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1941 0x00, 0x09, /* nop */
1942 };
1943
1944 static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1945 {
1946 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1947 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1948 0x04, 0x70, /* add #4, r0 */
1949 0x2b, 0x41, /* jmp @r1 */
1950 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1951 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1952 0xc2, 0x60, /* mov.l @r12,r0 */
1953 0x2b, 0x40, /* jmp @r0 */
1954 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1955 0x09, 0x00, /* nop */
1956 };
1957
1958 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = {
1959 /* Big-endian FDPIC, max index 64K. */
1960 NULL,
1961 0,
1962 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1963 fdpic_sh2a_plt_entry_be,
1964 FDPIC_SH2A_PLT_ENTRY_SIZE,
1965 { 0, MINUS_ONE, 12, TRUE },
1966 FDPIC_SH2A_PLT_LAZY_OFFSET,
1967 NULL
1968 };
1969
1970 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = {
1971 /* Little-endian FDPIC, max index 64K. */
1972 NULL,
1973 0,
1974 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1975 fdpic_sh2a_plt_entry_le,
1976 FDPIC_SH2A_PLT_ENTRY_SIZE,
1977 { 0, MINUS_ONE, 12, TRUE },
1978 FDPIC_SH2A_PLT_LAZY_OFFSET,
1979 NULL
1980 };
1981
1982 static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = {
1983 {
1984 /* Big-endian PIC. */
1985 NULL,
1986 0,
1987 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1988 fdpic_sh_plt_entry_be,
1989 FDPIC_PLT_ENTRY_SIZE,
1990 { 12, MINUS_ONE, 16, FALSE },
1991 FDPIC_PLT_LAZY_OFFSET,
1992 &fdpic_sh2a_short_plt_be
1993 },
1994 {
1995 /* Little-endian PIC. */
1996 NULL,
1997 0,
1998 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1999 fdpic_sh_plt_entry_le,
2000 FDPIC_PLT_ENTRY_SIZE,
2001 { 12, MINUS_ONE, 16, FALSE },
2002 FDPIC_PLT_LAZY_OFFSET,
2003 &fdpic_sh2a_short_plt_le
2004 },
2005 };
2006
2007 /* Return the type of PLT associated with ABFD. PIC_P is true if
2008 the object is position-independent. */
2009
2010 static const struct elf_sh_plt_info *
2011 get_plt_info (bfd *abfd, bfd_boolean pic_p)
2012 {
2013 if (fdpic_object_p (abfd))
2014 {
2015 /* If any input file requires SH2A we can use a shorter PLT
2016 sequence. */
2017 if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base)
2018 return &fdpic_sh2a_plts[!bfd_big_endian (abfd)];
2019 else
2020 return &fdpic_sh_plts[!bfd_big_endian (abfd)];
2021 }
2022 if (vxworks_object_p (abfd))
2023 return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)];
2024 return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
2025 }
2026
2027 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2028 VALUE is the field's value and CODE_P is true if VALUE refers to code,
2029 not data. */
2030
2031 inline static void
2032 install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED,
2033 unsigned long value, bfd_byte *addr)
2034 {
2035 bfd_put_32 (output_bfd, value, addr);
2036 }
2037
2038 /* The number of PLT entries which can use a shorter PLT, if any.
2039 Currently always 64K, since only SH-2A FDPIC uses this; a
2040 20-bit movi20 can address that many function descriptors below
2041 _GLOBAL_OFFSET_TABLE_. */
2042 #define MAX_SHORT_PLT 65536
2043
2044 /* Return the index of the PLT entry at byte offset OFFSET. */
2045
2046 static bfd_vma
2047 get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset)
2048 {
2049 bfd_vma plt_index = 0;
2050
2051 offset -= info->plt0_entry_size;
2052 if (info->short_plt != NULL)
2053 {
2054 if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size)
2055 {
2056 plt_index = MAX_SHORT_PLT;
2057 offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2058 }
2059 else
2060 info = info->short_plt;
2061 }
2062 return plt_index + offset / info->symbol_entry_size;
2063 }
2064
2065 /* Do the inverse operation. */
2066
2067 static bfd_vma
2068 get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index)
2069 {
2070 bfd_vma offset = 0;
2071
2072 if (info->short_plt != NULL)
2073 {
2074 if (plt_index > MAX_SHORT_PLT)
2075 {
2076 offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2077 plt_index -= MAX_SHORT_PLT;
2078 }
2079 else
2080 info = info->short_plt;
2081 }
2082 return (offset + info->plt0_entry_size
2083 + (plt_index * info->symbol_entry_size));
2084 }
2085
2086 union gotref
2087 {
2088 bfd_signed_vma refcount;
2089 bfd_vma offset;
2090 };
2091
2092 /* sh ELF linker hash entry. */
2093
2094 struct elf_sh_link_hash_entry
2095 {
2096 struct elf_link_hash_entry root;
2097
2098 /* Track dynamic relocs copied for this symbol. */
2099 struct elf_dyn_relocs *dyn_relocs;
2100
2101 bfd_signed_vma gotplt_refcount;
2102
2103 /* A local function descriptor, for FDPIC. The refcount counts
2104 R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
2105 relocations; the PLT and GOT entry are accounted
2106 for separately. After adjust_dynamic_symbol, the offset is
2107 MINUS_ONE if there is no local descriptor (dynamic linker
2108 managed and no PLT entry, or undefined weak non-dynamic).
2109 During check_relocs we do not yet know whether the local
2110 descriptor will be canonical. */
2111 union gotref funcdesc;
2112
2113 /* How many of the above refcounted relocations were R_SH_FUNCDESC,
2114 and thus require fixups or relocations. */
2115 bfd_signed_vma abs_funcdesc_refcount;
2116
2117 enum got_type {
2118 GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC
2119 } got_type;
2120 };
2121
2122 #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2123
2124 struct sh_elf_obj_tdata
2125 {
2126 struct elf_obj_tdata root;
2127
2128 /* got_type for each local got entry. */
2129 char *local_got_type;
2130
2131 /* Function descriptor refcount and offset for each local symbol. */
2132 union gotref *local_funcdesc;
2133 };
2134
2135 #define sh_elf_tdata(abfd) \
2136 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2137
2138 #define sh_elf_local_got_type(abfd) \
2139 (sh_elf_tdata (abfd)->local_got_type)
2140
2141 #define sh_elf_local_funcdesc(abfd) \
2142 (sh_elf_tdata (abfd)->local_funcdesc)
2143
2144 #define is_sh_elf(bfd) \
2145 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2146 && elf_tdata (bfd) != NULL \
2147 && elf_object_id (bfd) == SH_ELF_DATA)
2148
2149 /* Override the generic function because we need to store sh_elf_obj_tdata
2150 as the specific tdata. */
2151
2152 static bfd_boolean
2153 sh_elf_mkobject (bfd *abfd)
2154 {
2155 return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata),
2156 SH_ELF_DATA);
2157 }
2158
2159 /* sh ELF linker hash table. */
2160
2161 struct elf_sh_link_hash_table
2162 {
2163 struct elf_link_hash_table root;
2164
2165 /* Short-cuts to get to dynamic linker sections. */
2166 asection *sdynbss;
2167 asection *srelbss;
2168 asection *sfuncdesc;
2169 asection *srelfuncdesc;
2170 asection *srofixup;
2171
2172 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2173 asection *srelplt2;
2174
2175 /* Small local sym cache. */
2176 struct sym_cache sym_cache;
2177
2178 /* A counter or offset to track a TLS got entry. */
2179 union
2180 {
2181 bfd_signed_vma refcount;
2182 bfd_vma offset;
2183 } tls_ldm_got;
2184
2185 /* The type of PLT to use. */
2186 const struct elf_sh_plt_info *plt_info;
2187
2188 /* True if the target system is VxWorks. */
2189 bfd_boolean vxworks_p;
2190
2191 /* True if the target system uses FDPIC. */
2192 bfd_boolean fdpic_p;
2193 };
2194
2195 /* Traverse an sh ELF linker hash table. */
2196
2197 #define sh_elf_link_hash_traverse(table, func, info) \
2198 (elf_link_hash_traverse \
2199 (&(table)->root, \
2200 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
2201 (info)))
2202
2203 /* Get the sh ELF linker hash table from a link_info structure. */
2204
2205 #define sh_elf_hash_table(p) \
2206 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2207 == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
2208
2209 /* Create an entry in an sh ELF linker hash table. */
2210
2211 static struct bfd_hash_entry *
2212 sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2213 struct bfd_hash_table *table,
2214 const char *string)
2215 {
2216 struct elf_sh_link_hash_entry *ret =
2217 (struct elf_sh_link_hash_entry *) entry;
2218
2219 /* Allocate the structure if it has not already been allocated by a
2220 subclass. */
2221 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2222 ret = ((struct elf_sh_link_hash_entry *)
2223 bfd_hash_allocate (table,
2224 sizeof (struct elf_sh_link_hash_entry)));
2225 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2226 return (struct bfd_hash_entry *) ret;
2227
2228 /* Call the allocation method of the superclass. */
2229 ret = ((struct elf_sh_link_hash_entry *)
2230 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2231 table, string));
2232 if (ret != (struct elf_sh_link_hash_entry *) NULL)
2233 {
2234 ret->dyn_relocs = NULL;
2235 ret->gotplt_refcount = 0;
2236 ret->funcdesc.refcount = 0;
2237 ret->abs_funcdesc_refcount = 0;
2238 ret->got_type = GOT_UNKNOWN;
2239 }
2240
2241 return (struct bfd_hash_entry *) ret;
2242 }
2243
2244 /* Create an sh ELF linker hash table. */
2245
2246 static struct bfd_link_hash_table *
2247 sh_elf_link_hash_table_create (bfd *abfd)
2248 {
2249 struct elf_sh_link_hash_table *ret;
2250 size_t amt = sizeof (struct elf_sh_link_hash_table);
2251
2252 ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt);
2253 if (ret == (struct elf_sh_link_hash_table *) NULL)
2254 return NULL;
2255
2256 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
2257 sh_elf_link_hash_newfunc,
2258 sizeof (struct elf_sh_link_hash_entry),
2259 SH_ELF_DATA))
2260 {
2261 free (ret);
2262 return NULL;
2263 }
2264
2265 ret->vxworks_p = vxworks_object_p (abfd);
2266 ret->fdpic_p = fdpic_object_p (abfd);
2267
2268 return &ret->root.root;
2269 }
2270
2271 static bfd_boolean
2272 sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2273 struct bfd_link_info *info, asection *p)
2274 {
2275 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
2276
2277 /* Non-FDPIC binaries do not need dynamic symbols for sections. */
2278 if (!htab->fdpic_p)
2279 return TRUE;
2280
2281 /* We need dynamic symbols for every section, since segments can
2282 relocate independently. */
2283 switch (elf_section_data (p)->this_hdr.sh_type)
2284 {
2285 case SHT_PROGBITS:
2286 case SHT_NOBITS:
2287 /* If sh_type is yet undecided, assume it could be
2288 SHT_PROGBITS/SHT_NOBITS. */
2289 case SHT_NULL:
2290 return FALSE;
2291
2292 /* There shouldn't be section relative relocations
2293 against any other section. */
2294 default:
2295 return TRUE;
2296 }
2297 }
2298
2299 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2300 shortcuts to them in our hash table. */
2301
2302 static bfd_boolean
2303 create_got_section (bfd *dynobj, struct bfd_link_info *info)
2304 {
2305 struct elf_sh_link_hash_table *htab;
2306
2307 if (! _bfd_elf_create_got_section (dynobj, info))
2308 return FALSE;
2309
2310 htab = sh_elf_hash_table (info);
2311 if (htab == NULL)
2312 return FALSE;
2313
2314 htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc",
2315 (SEC_ALLOC | SEC_LOAD
2316 | SEC_HAS_CONTENTS
2317 | SEC_IN_MEMORY
2318 | SEC_LINKER_CREATED));
2319 if (htab->sfuncdesc == NULL
2320 || !bfd_set_section_alignment (htab->sfuncdesc, 2))
2321 return FALSE;
2322
2323 htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj,
2324 ".rela.got.funcdesc",
2325 (SEC_ALLOC | SEC_LOAD
2326 | SEC_HAS_CONTENTS
2327 | SEC_IN_MEMORY
2328 | SEC_LINKER_CREATED
2329 | SEC_READONLY));
2330 if (htab->srelfuncdesc == NULL
2331 || !bfd_set_section_alignment (htab->srelfuncdesc, 2))
2332 return FALSE;
2333
2334 /* Also create .rofixup. */
2335 htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup",
2336 (SEC_ALLOC | SEC_LOAD
2337 | SEC_HAS_CONTENTS
2338 | SEC_IN_MEMORY
2339 | SEC_LINKER_CREATED
2340 | SEC_READONLY));
2341 if (htab->srofixup == NULL
2342 || !bfd_set_section_alignment (htab->srofixup, 2))
2343 return FALSE;
2344
2345 return TRUE;
2346 }
2347
2348 /* Create dynamic sections when linking against a dynamic object. */
2349
2350 static bfd_boolean
2351 sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2352 {
2353 struct elf_sh_link_hash_table *htab;
2354 flagword flags, pltflags;
2355 asection *s;
2356 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2357 int ptralign = 0;
2358
2359 switch (bed->s->arch_size)
2360 {
2361 case 32:
2362 ptralign = 2;
2363 break;
2364
2365 case 64:
2366 ptralign = 3;
2367 break;
2368
2369 default:
2370 bfd_set_error (bfd_error_bad_value);
2371 return FALSE;
2372 }
2373
2374 htab = sh_elf_hash_table (info);
2375 if (htab == NULL)
2376 return FALSE;
2377
2378 if (htab->root.dynamic_sections_created)
2379 return TRUE;
2380
2381 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2382 .rel[a].bss sections. */
2383
2384 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2385 | SEC_LINKER_CREATED);
2386
2387 pltflags = flags;
2388 pltflags |= SEC_CODE;
2389 if (bed->plt_not_loaded)
2390 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2391 if (bed->plt_readonly)
2392 pltflags |= SEC_READONLY;
2393
2394 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2395 htab->root.splt = s;
2396 if (s == NULL
2397 || !bfd_set_section_alignment (s, bed->plt_alignment))
2398 return FALSE;
2399
2400 if (bed->want_plt_sym)
2401 {
2402 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2403 .plt section. */
2404 struct elf_link_hash_entry *h;
2405 struct bfd_link_hash_entry *bh = NULL;
2406
2407 if (! (_bfd_generic_link_add_one_symbol
2408 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2409 (bfd_vma) 0, (const char *) NULL, FALSE,
2410 get_elf_backend_data (abfd)->collect, &bh)))
2411 return FALSE;
2412
2413 h = (struct elf_link_hash_entry *) bh;
2414 h->def_regular = 1;
2415 h->type = STT_OBJECT;
2416 htab->root.hplt = h;
2417
2418 if (bfd_link_pic (info)
2419 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2420 return FALSE;
2421 }
2422
2423 s = bfd_make_section_anyway_with_flags (abfd,
2424 bed->default_use_rela_p
2425 ? ".rela.plt" : ".rel.plt",
2426 flags | SEC_READONLY);
2427 htab->root.srelplt = s;
2428 if (s == NULL
2429 || !bfd_set_section_alignment (s, ptralign))
2430 return FALSE;
2431
2432 if (htab->root.sgot == NULL
2433 && !create_got_section (abfd, info))
2434 return FALSE;
2435
2436 if (bed->want_dynbss)
2437 {
2438 /* The .dynbss section is a place to put symbols which are defined
2439 by dynamic objects, are referenced by regular objects, and are
2440 not functions. We must allocate space for them in the process
2441 image and use a R_*_COPY reloc to tell the dynamic linker to
2442 initialize them at run time. The linker script puts the .dynbss
2443 section into the .bss section of the final image. */
2444 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2445 SEC_ALLOC | SEC_LINKER_CREATED);
2446 htab->sdynbss = s;
2447 if (s == NULL)
2448 return FALSE;
2449
2450 /* The .rel[a].bss section holds copy relocs. This section is not
2451 normally needed. We need to create it here, though, so that the
2452 linker will map it to an output section. We can't just create it
2453 only if we need it, because we will not know whether we need it
2454 until we have seen all the input files, and the first time the
2455 main linker code calls BFD after examining all the input files
2456 (size_dynamic_sections) the input sections have already been
2457 mapped to the output sections. If the section turns out not to
2458 be needed, we can discard it later. We will never need this
2459 section when generating a shared object, since they do not use
2460 copy relocs. */
2461 if (! bfd_link_pic (info))
2462 {
2463 s = bfd_make_section_anyway_with_flags (abfd,
2464 (bed->default_use_rela_p
2465 ? ".rela.bss" : ".rel.bss"),
2466 flags | SEC_READONLY);
2467 htab->srelbss = s;
2468 if (s == NULL
2469 || !bfd_set_section_alignment (s, ptralign))
2470 return FALSE;
2471 }
2472 }
2473
2474 if (htab->vxworks_p)
2475 {
2476 if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2477 return FALSE;
2478 }
2479
2480 return TRUE;
2481 }
2482 \f
2483 /* Find dynamic relocs for H that apply to read-only sections. */
2484
2485 static asection *
2486 readonly_dynrelocs (struct elf_link_hash_entry *h)
2487 {
2488 struct elf_dyn_relocs *p;
2489
2490 for (p = sh_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2491 {
2492 asection *s = p->sec->output_section;
2493
2494 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2495 return p->sec;
2496 }
2497 return NULL;
2498 }
2499
2500 /* Adjust a symbol defined by a dynamic object and referenced by a
2501 regular object. The current definition is in some section of the
2502 dynamic object, but we're not including those sections. We have to
2503 change the definition to something the rest of the link can
2504 understand. */
2505
2506 static bfd_boolean
2507 sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2508 struct elf_link_hash_entry *h)
2509 {
2510 struct elf_sh_link_hash_table *htab;
2511 asection *s;
2512
2513 htab = sh_elf_hash_table (info);
2514 if (htab == NULL)
2515 return FALSE;
2516
2517 /* Make sure we know what is going on here. */
2518 BFD_ASSERT (htab->root.dynobj != NULL
2519 && (h->needs_plt
2520 || h->is_weakalias
2521 || (h->def_dynamic
2522 && h->ref_regular
2523 && !h->def_regular)));
2524
2525 /* If this is a function, put it in the procedure linkage table. We
2526 will fill in the contents of the procedure linkage table later,
2527 when we know the address of the .got section. */
2528 if (h->type == STT_FUNC
2529 || h->needs_plt)
2530 {
2531 if (h->plt.refcount <= 0
2532 || SYMBOL_CALLS_LOCAL (info, h)
2533 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2534 && h->root.type == bfd_link_hash_undefweak))
2535 {
2536 /* This case can occur if we saw a PLT reloc in an input
2537 file, but the symbol was never referred to by a dynamic
2538 object. In such a case, we don't actually need to build
2539 a procedure linkage table, and we can just do a REL32
2540 reloc instead. */
2541 h->plt.offset = (bfd_vma) -1;
2542 h->needs_plt = 0;
2543 }
2544
2545 return TRUE;
2546 }
2547 else
2548 h->plt.offset = (bfd_vma) -1;
2549
2550 /* If this is a weak symbol, and there is a real definition, the
2551 processor independent code will have arranged for us to see the
2552 real definition first, and we can just use the same value. */
2553 if (h->is_weakalias)
2554 {
2555 struct elf_link_hash_entry *def = weakdef (h);
2556 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2557 h->root.u.def.section = def->root.u.def.section;
2558 h->root.u.def.value = def->root.u.def.value;
2559 if (info->nocopyreloc)
2560 h->non_got_ref = def->non_got_ref;
2561 return TRUE;
2562 }
2563
2564 /* This is a reference to a symbol defined by a dynamic object which
2565 is not a function. */
2566
2567 /* If we are creating a shared library, we must presume that the
2568 only references to the symbol are via the global offset table.
2569 For such cases we need not do anything here; the relocations will
2570 be handled correctly by relocate_section. */
2571 if (bfd_link_pic (info))
2572 return TRUE;
2573
2574 /* If there are no references to this symbol that do not use the
2575 GOT, we don't need to generate a copy reloc. */
2576 if (!h->non_got_ref)
2577 return TRUE;
2578
2579 /* If -z nocopyreloc was given, we won't generate them either. */
2580 if (0 && info->nocopyreloc)
2581 {
2582 h->non_got_ref = 0;
2583 return TRUE;
2584 }
2585
2586 /* If we don't find any dynamic relocs in read-only sections, then
2587 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2588 if (0 && !readonly_dynrelocs (h))
2589 {
2590 h->non_got_ref = 0;
2591 return TRUE;
2592 }
2593
2594 /* We must allocate the symbol in our .dynbss section, which will
2595 become part of the .bss section of the executable. There will be
2596 an entry for this symbol in the .dynsym section. The dynamic
2597 object will contain position independent code, so all references
2598 from the dynamic object to this symbol will go through the global
2599 offset table. The dynamic linker will use the .dynsym entry to
2600 determine the address it must put in the global offset table, so
2601 both the dynamic object and the regular object will refer to the
2602 same memory location for the variable. */
2603
2604 s = htab->sdynbss;
2605 BFD_ASSERT (s != NULL);
2606
2607 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2608 copy the initial value out of the dynamic object and into the
2609 runtime process image. We need to remember the offset into the
2610 .rela.bss section we are going to use. */
2611 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2612 {
2613 asection *srel;
2614
2615 srel = htab->srelbss;
2616 BFD_ASSERT (srel != NULL);
2617 srel->size += sizeof (Elf32_External_Rela);
2618 h->needs_copy = 1;
2619 }
2620
2621 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2622 }
2623
2624 /* Allocate space in .plt, .got and associated reloc sections for
2625 dynamic relocs. */
2626
2627 static bfd_boolean
2628 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2629 {
2630 struct bfd_link_info *info;
2631 struct elf_sh_link_hash_table *htab;
2632 struct elf_sh_link_hash_entry *eh;
2633 struct elf_dyn_relocs *p;
2634
2635 if (h->root.type == bfd_link_hash_indirect)
2636 return TRUE;
2637
2638 info = (struct bfd_link_info *) inf;
2639 htab = sh_elf_hash_table (info);
2640 if (htab == NULL)
2641 return FALSE;
2642
2643 eh = (struct elf_sh_link_hash_entry *) h;
2644 if ((h->got.refcount > 0
2645 || h->forced_local)
2646 && eh->gotplt_refcount > 0)
2647 {
2648 /* The symbol has been forced local, or we have some direct got refs,
2649 so treat all the gotplt refs as got refs. */
2650 h->got.refcount += eh->gotplt_refcount;
2651 if (h->plt.refcount >= eh->gotplt_refcount)
2652 h->plt.refcount -= eh->gotplt_refcount;
2653 }
2654
2655 if (htab->root.dynamic_sections_created
2656 && h->plt.refcount > 0
2657 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2658 || h->root.type != bfd_link_hash_undefweak))
2659 {
2660 /* Make sure this symbol is output as a dynamic symbol.
2661 Undefined weak syms won't yet be marked as dynamic. */
2662 if (h->dynindx == -1
2663 && !h->forced_local)
2664 {
2665 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2666 return FALSE;
2667 }
2668
2669 if (bfd_link_pic (info)
2670 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
2671 {
2672 asection *s = htab->root.splt;
2673 const struct elf_sh_plt_info *plt_info;
2674
2675 /* If this is the first .plt entry, make room for the special
2676 first entry. */
2677 if (s->size == 0)
2678 s->size += htab->plt_info->plt0_entry_size;
2679
2680 h->plt.offset = s->size;
2681
2682 /* If this symbol is not defined in a regular file, and we are
2683 not generating a shared library, then set the symbol to this
2684 location in the .plt. This is required to make function
2685 pointers compare as equal between the normal executable and
2686 the shared library. Skip this for FDPIC, since the
2687 function's address will be the address of the canonical
2688 function descriptor. */
2689 if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular)
2690 {
2691 h->root.u.def.section = s;
2692 h->root.u.def.value = h->plt.offset;
2693 }
2694
2695 /* Make room for this entry. */
2696 plt_info = htab->plt_info;
2697 if (plt_info->short_plt != NULL
2698 && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
2699 plt_info = plt_info->short_plt;
2700 s->size += plt_info->symbol_entry_size;
2701
2702 /* We also need to make an entry in the .got.plt section, which
2703 will be placed in the .got section by the linker script. */
2704 if (!htab->fdpic_p)
2705 htab->root.sgotplt->size += 4;
2706 else
2707 htab->root.sgotplt->size += 8;
2708
2709 /* We also need to make an entry in the .rel.plt section. */
2710 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
2711
2712 if (htab->vxworks_p && !bfd_link_pic (info))
2713 {
2714 /* VxWorks executables have a second set of relocations
2715 for each PLT entry. They go in a separate relocation
2716 section, which is processed by the kernel loader. */
2717
2718 /* There is a relocation for the initial PLT entry:
2719 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
2720 if (h->plt.offset == htab->plt_info->plt0_entry_size)
2721 htab->srelplt2->size += sizeof (Elf32_External_Rela);
2722
2723 /* There are two extra relocations for each subsequent
2724 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2725 and an R_SH_DIR32 relocation for the PLT entry. */
2726 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
2727 }
2728 }
2729 else
2730 {
2731 h->plt.offset = (bfd_vma) -1;
2732 h->needs_plt = 0;
2733 }
2734 }
2735 else
2736 {
2737 h->plt.offset = (bfd_vma) -1;
2738 h->needs_plt = 0;
2739 }
2740
2741 if (h->got.refcount > 0)
2742 {
2743 asection *s;
2744 bfd_boolean dyn;
2745 enum got_type got_type = sh_elf_hash_entry (h)->got_type;
2746
2747 /* Make sure this symbol is output as a dynamic symbol.
2748 Undefined weak syms won't yet be marked as dynamic. */
2749 if (h->dynindx == -1
2750 && !h->forced_local)
2751 {
2752 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2753 return FALSE;
2754 }
2755
2756 s = htab->root.sgot;
2757 h->got.offset = s->size;
2758 s->size += 4;
2759 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
2760 if (got_type == GOT_TLS_GD)
2761 s->size += 4;
2762 dyn = htab->root.dynamic_sections_created;
2763 if (!dyn)
2764 {
2765 /* No dynamic relocations required. */
2766 if (htab->fdpic_p && !bfd_link_pic (info)
2767 && h->root.type != bfd_link_hash_undefweak
2768 && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
2769 htab->srofixup->size += 4;
2770 }
2771 /* No dynamic relocations required when IE->LE conversion happens. */
2772 else if (got_type == GOT_TLS_IE
2773 && !h->def_dynamic
2774 && !bfd_link_pic (info))
2775 ;
2776 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
2777 R_SH_TLS_GD needs one if local symbol and two if global. */
2778 else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
2779 || got_type == GOT_TLS_IE)
2780 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2781 else if (got_type == GOT_TLS_GD)
2782 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2783 else if (got_type == GOT_FUNCDESC)
2784 {
2785 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
2786 htab->srofixup->size += 4;
2787 else
2788 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2789 }
2790 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2791 || h->root.type != bfd_link_hash_undefweak)
2792 && (bfd_link_pic (info)
2793 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
2794 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2795 else if (htab->fdpic_p
2796 && !bfd_link_pic (info)
2797 && got_type == GOT_NORMAL
2798 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2799 || h->root.type != bfd_link_hash_undefweak))
2800 htab->srofixup->size += 4;
2801 }
2802 else
2803 h->got.offset = (bfd_vma) -1;
2804
2805 /* Allocate space for any dynamic relocations to function
2806 descriptors, canonical or otherwise. We need to relocate the
2807 reference unless it resolves to zero, which only happens for
2808 undefined weak symbols (either non-default visibility, or when
2809 static linking). Any GOT slot is accounted for elsewhere. */
2810 if (eh->abs_funcdesc_refcount > 0
2811 && (h->root.type != bfd_link_hash_undefweak
2812 || (htab->root.dynamic_sections_created
2813 && ! SYMBOL_CALLS_LOCAL (info, h))))
2814 {
2815 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
2816 htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
2817 else
2818 htab->root.srelgot->size
2819 += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
2820 }
2821
2822 /* We must allocate a function descriptor if there are references to
2823 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
2824 the dynamic linker isn't going to allocate it. None of this
2825 applies if we already created one in .got.plt, but if the
2826 canonical function descriptor can be in this object, there
2827 won't be a PLT entry at all. */
2828 if ((eh->funcdesc.refcount > 0
2829 || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
2830 && h->root.type != bfd_link_hash_undefweak
2831 && SYMBOL_FUNCDESC_LOCAL (info, h))
2832 {
2833 /* Make room for this function descriptor. */
2834 eh->funcdesc.offset = htab->sfuncdesc->size;
2835 htab->sfuncdesc->size += 8;
2836
2837 /* We will need a relocation or two fixups to initialize the
2838 function descriptor, so allocate those too. */
2839 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
2840 htab->srofixup->size += 8;
2841 else
2842 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
2843 }
2844
2845 if (eh->dyn_relocs == NULL)
2846 return TRUE;
2847
2848 /* In the shared -Bsymbolic case, discard space allocated for
2849 dynamic pc-relative relocs against symbols which turn out to be
2850 defined in regular objects. For the normal shared case, discard
2851 space for pc-relative relocs that have become local due to symbol
2852 visibility changes. */
2853
2854 if (bfd_link_pic (info))
2855 {
2856 if (SYMBOL_CALLS_LOCAL (info, h))
2857 {
2858 struct elf_dyn_relocs **pp;
2859
2860 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2861 {
2862 p->count -= p->pc_count;
2863 p->pc_count = 0;
2864 if (p->count == 0)
2865 *pp = p->next;
2866 else
2867 pp = &p->next;
2868 }
2869 }
2870
2871 if (htab->vxworks_p)
2872 {
2873 struct elf_dyn_relocs **pp;
2874
2875 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2876 {
2877 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2878 *pp = p->next;
2879 else
2880 pp = &p->next;
2881 }
2882 }
2883
2884 /* Also discard relocs on undefined weak syms with non-default
2885 visibility. */
2886 if (eh->dyn_relocs != NULL
2887 && h->root.type == bfd_link_hash_undefweak)
2888 {
2889 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2890 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2891 eh->dyn_relocs = NULL;
2892
2893 /* Make sure undefined weak symbols are output as a dynamic
2894 symbol in PIEs. */
2895 else if (h->dynindx == -1
2896 && !h->forced_local)
2897 {
2898 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2899 return FALSE;
2900 }
2901 }
2902 }
2903 else
2904 {
2905 /* For the non-shared case, discard space for relocs against
2906 symbols which turn out to need copy relocs or are not
2907 dynamic. */
2908
2909 if (!h->non_got_ref
2910 && ((h->def_dynamic
2911 && !h->def_regular)
2912 || (htab->root.dynamic_sections_created
2913 && (h->root.type == bfd_link_hash_undefweak
2914 || h->root.type == bfd_link_hash_undefined))))
2915 {
2916 /* Make sure this symbol is output as a dynamic symbol.
2917 Undefined weak syms won't yet be marked as dynamic. */
2918 if (h->dynindx == -1
2919 && !h->forced_local)
2920 {
2921 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2922 return FALSE;
2923 }
2924
2925 /* If that succeeded, we know we'll be keeping all the
2926 relocs. */
2927 if (h->dynindx != -1)
2928 goto keep;
2929 }
2930
2931 eh->dyn_relocs = NULL;
2932
2933 keep: ;
2934 }
2935
2936 /* Finally, allocate space. */
2937 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2938 {
2939 asection *sreloc = elf_section_data (p->sec)->sreloc;
2940 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2941
2942 /* If we need relocations, we do not need fixups. */
2943 if (htab->fdpic_p && !bfd_link_pic (info))
2944 htab->srofixup->size -= 4 * (p->count - p->pc_count);
2945 }
2946
2947 return TRUE;
2948 }
2949
2950 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2951 read-only sections. */
2952
2953 static bfd_boolean
2954 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2955 {
2956 asection *sec;
2957
2958 if (h->root.type == bfd_link_hash_indirect)
2959 return TRUE;
2960
2961 sec = readonly_dynrelocs (h);
2962 if (sec != NULL)
2963 {
2964 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2965
2966 info->flags |= DF_TEXTREL;
2967 info->callbacks->minfo
2968 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2969 sec->owner, h->root.root.string, sec);
2970
2971 /* Not an error, just cut short the traversal. */
2972 return FALSE;
2973 }
2974 return TRUE;
2975 }
2976
2977 /* This function is called after all the input files have been read,
2978 and the input sections have been assigned to output sections.
2979 It's a convenient place to determine the PLT style. */
2980
2981 static bfd_boolean
2982 sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2983 {
2984 sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd,
2985 bfd_link_pic (info));
2986
2987 if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info)
2988 && !bfd_elf_stack_segment_size (output_bfd, info,
2989 "__stacksize", DEFAULT_STACK_SIZE))
2990 return FALSE;
2991 return TRUE;
2992 }
2993
2994 /* Set the sizes of the dynamic sections. */
2995
2996 static bfd_boolean
2997 sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2998 struct bfd_link_info *info)
2999 {
3000 struct elf_sh_link_hash_table *htab;
3001 bfd *dynobj;
3002 asection *s;
3003 bfd_boolean relocs;
3004 bfd *ibfd;
3005
3006 htab = sh_elf_hash_table (info);
3007 if (htab == NULL)
3008 return FALSE;
3009
3010 dynobj = htab->root.dynobj;
3011 BFD_ASSERT (dynobj != NULL);
3012
3013 if (htab->root.dynamic_sections_created)
3014 {
3015 /* Set the contents of the .interp section to the interpreter. */
3016 if (bfd_link_executable (info) && !info->nointerp)
3017 {
3018 s = bfd_get_linker_section (dynobj, ".interp");
3019 BFD_ASSERT (s != NULL);
3020 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3021 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3022 }
3023 }
3024
3025 /* Set up .got offsets for local syms, and space for local dynamic
3026 relocs. */
3027 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
3028 {
3029 bfd_signed_vma *local_got;
3030 bfd_signed_vma *end_local_got;
3031 union gotref *local_funcdesc, *end_local_funcdesc;
3032 char *local_got_type;
3033 bfd_size_type locsymcount;
3034 Elf_Internal_Shdr *symtab_hdr;
3035 asection *srel;
3036
3037 if (! is_sh_elf (ibfd))
3038 continue;
3039
3040 for (s = ibfd->sections; s != NULL; s = s->next)
3041 {
3042 struct elf_dyn_relocs *p;
3043
3044 for (p = ((struct elf_dyn_relocs *)
3045 elf_section_data (s)->local_dynrel);
3046 p != NULL;
3047 p = p->next)
3048 {
3049 if (! bfd_is_abs_section (p->sec)
3050 && bfd_is_abs_section (p->sec->output_section))
3051 {
3052 /* Input section has been discarded, either because
3053 it is a copy of a linkonce section or due to
3054 linker script /DISCARD/, so we'll be discarding
3055 the relocs too. */
3056 }
3057 else if (htab->vxworks_p
3058 && strcmp (p->sec->output_section->name,
3059 ".tls_vars") == 0)
3060 {
3061 /* Relocations in vxworks .tls_vars sections are
3062 handled specially by the loader. */
3063 }
3064 else if (p->count != 0)
3065 {
3066 srel = elf_section_data (p->sec)->sreloc;
3067 srel->size += p->count * sizeof (Elf32_External_Rela);
3068 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3069 {
3070 info->flags |= DF_TEXTREL;
3071 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
3072 p->sec->owner, p->sec);
3073 }
3074
3075 /* If we need relocations, we do not need fixups. */
3076 if (htab->fdpic_p && !bfd_link_pic (info))
3077 htab->srofixup->size -= 4 * (p->count - p->pc_count);
3078 }
3079 }
3080 }
3081
3082 symtab_hdr = &elf_symtab_hdr (ibfd);
3083 locsymcount = symtab_hdr->sh_info;
3084 s = htab->root.sgot;
3085 srel = htab->root.srelgot;
3086
3087 local_got = elf_local_got_refcounts (ibfd);
3088 if (local_got)
3089 {
3090 end_local_got = local_got + locsymcount;
3091 local_got_type = sh_elf_local_got_type (ibfd);
3092 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3093 for (; local_got < end_local_got; ++local_got)
3094 {
3095 if (*local_got > 0)
3096 {
3097 *local_got = s->size;
3098 s->size += 4;
3099 if (*local_got_type == GOT_TLS_GD)
3100 s->size += 4;
3101 if (bfd_link_pic (info))
3102 srel->size += sizeof (Elf32_External_Rela);
3103 else
3104 htab->srofixup->size += 4;
3105
3106 if (*local_got_type == GOT_FUNCDESC)
3107 {
3108 if (local_funcdesc == NULL)
3109 {
3110 bfd_size_type size;
3111
3112 size = locsymcount * sizeof (union gotref);
3113 local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
3114 size);
3115 if (local_funcdesc == NULL)
3116 return FALSE;
3117 sh_elf_local_funcdesc (ibfd) = local_funcdesc;
3118 local_funcdesc += (local_got
3119 - elf_local_got_refcounts (ibfd));
3120 }
3121 local_funcdesc->refcount++;
3122 ++local_funcdesc;
3123 }
3124 }
3125 else
3126 *local_got = (bfd_vma) -1;
3127 ++local_got_type;
3128 }
3129 }
3130
3131 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3132 if (local_funcdesc)
3133 {
3134 end_local_funcdesc = local_funcdesc + locsymcount;
3135
3136 for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
3137 {
3138 if (local_funcdesc->refcount > 0)
3139 {
3140 local_funcdesc->offset = htab->sfuncdesc->size;
3141 htab->sfuncdesc->size += 8;
3142 if (!bfd_link_pic (info))
3143 htab->srofixup->size += 8;
3144 else
3145 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3146 }
3147 else
3148 local_funcdesc->offset = MINUS_ONE;
3149 }
3150 }
3151
3152 }
3153
3154 if (htab->tls_ldm_got.refcount > 0)
3155 {
3156 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3157 relocs. */
3158 htab->tls_ldm_got.offset = htab->root.sgot->size;
3159 htab->root.sgot->size += 8;
3160 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
3161 }
3162 else
3163 htab->tls_ldm_got.offset = -1;
3164
3165 /* Only the reserved entries should be present. For FDPIC, they go at
3166 the end of .got.plt. */
3167 if (htab->fdpic_p)
3168 {
3169 BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12);
3170 htab->root.sgotplt->size = 0;
3171 }
3172
3173 /* Allocate global sym .plt and .got entries, and space for global
3174 sym dynamic relocs. */
3175 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
3176
3177 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3178 end of the FDPIC .got.plt. */
3179 if (htab->fdpic_p)
3180 {
3181 htab->root.hgot->root.u.def.value = htab->root.sgotplt->size;
3182 htab->root.sgotplt->size += 12;
3183 }
3184
3185 /* At the very end of the .rofixup section is a pointer to the GOT. */
3186 if (htab->fdpic_p && htab->srofixup != NULL)
3187 htab->srofixup->size += 4;
3188
3189 /* We now have determined the sizes of the various dynamic sections.
3190 Allocate memory for them. */
3191 relocs = FALSE;
3192 for (s = dynobj->sections; s != NULL; s = s->next)
3193 {
3194 if ((s->flags & SEC_LINKER_CREATED) == 0)
3195 continue;
3196
3197 if (s == htab->root.splt
3198 || s == htab->root.sgot
3199 || s == htab->root.sgotplt
3200 || s == htab->sfuncdesc
3201 || s == htab->srofixup
3202 || s == htab->sdynbss)
3203 {
3204 /* Strip this section if we don't need it; see the
3205 comment below. */
3206 }
3207 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
3208 {
3209 if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2)
3210 relocs = TRUE;
3211
3212 /* We use the reloc_count field as a counter if we need
3213 to copy relocs into the output file. */
3214 s->reloc_count = 0;
3215 }
3216 else
3217 {
3218 /* It's not one of our sections, so don't allocate space. */
3219 continue;
3220 }
3221
3222 if (s->size == 0)
3223 {
3224 /* If we don't need this section, strip it from the
3225 output file. This is mostly to handle .rela.bss and
3226 .rela.plt. We must create both sections in
3227 create_dynamic_sections, because they must be created
3228 before the linker maps input sections to output
3229 sections. The linker does that before
3230 adjust_dynamic_symbol is called, and it is that
3231 function which decides whether anything needs to go
3232 into these sections. */
3233
3234 s->flags |= SEC_EXCLUDE;
3235 continue;
3236 }
3237
3238 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3239 continue;
3240
3241 /* Allocate memory for the section contents. We use bfd_zalloc
3242 here in case unused entries are not reclaimed before the
3243 section's contents are written out. This should not happen,
3244 but this way if it does, we get a R_SH_NONE reloc instead
3245 of garbage. */
3246 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3247 if (s->contents == NULL)
3248 return FALSE;
3249 }
3250
3251 if (htab->root.dynamic_sections_created)
3252 {
3253 /* Add some entries to the .dynamic section. We fill in the
3254 values later, in sh_elf_finish_dynamic_sections, but we
3255 must add the entries now so that we get the correct size for
3256 the .dynamic section. The DT_DEBUG entry is filled in by the
3257 dynamic linker and used by the debugger. */
3258 #define add_dynamic_entry(TAG, VAL) \
3259 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3260
3261 if (bfd_link_executable (info))
3262 {
3263 if (! add_dynamic_entry (DT_DEBUG, 0))
3264 return FALSE;
3265 }
3266
3267 if (htab->root.splt->size != 0)
3268 {
3269 if (! add_dynamic_entry (DT_PLTGOT, 0)
3270 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
3271 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
3272 || ! add_dynamic_entry (DT_JMPREL, 0))
3273 return FALSE;
3274 }
3275 else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC))
3276 {
3277 if (! add_dynamic_entry (DT_PLTGOT, 0))
3278 return FALSE;
3279 }
3280
3281 if (relocs)
3282 {
3283 if (! add_dynamic_entry (DT_RELA, 0)
3284 || ! add_dynamic_entry (DT_RELASZ, 0)
3285 || ! add_dynamic_entry (DT_RELAENT,
3286 sizeof (Elf32_External_Rela)))
3287 return FALSE;
3288
3289 /* If any dynamic relocs apply to a read-only section,
3290 then we need a DT_TEXTREL entry. */
3291 if ((info->flags & DF_TEXTREL) == 0)
3292 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
3293
3294 if ((info->flags & DF_TEXTREL) != 0)
3295 {
3296 if (! add_dynamic_entry (DT_TEXTREL, 0))
3297 return FALSE;
3298 }
3299 }
3300 if (htab->vxworks_p
3301 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
3302 return FALSE;
3303 }
3304 #undef add_dynamic_entry
3305
3306 return TRUE;
3307 }
3308 \f
3309 /* Add a dynamic relocation to the SRELOC section. */
3310
3311 inline static bfd_vma
3312 sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
3313 int reloc_type, long dynindx, bfd_vma addend)
3314 {
3315 Elf_Internal_Rela outrel;
3316 bfd_vma reloc_offset;
3317
3318 outrel.r_offset = offset;
3319 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
3320 outrel.r_addend = addend;
3321
3322 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
3323 BFD_ASSERT (reloc_offset < sreloc->size);
3324 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
3325 sreloc->contents + reloc_offset);
3326 sreloc->reloc_count++;
3327
3328 return reloc_offset;
3329 }
3330
3331 /* Add an FDPIC read-only fixup. */
3332
3333 inline static void
3334 sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
3335 {
3336 bfd_vma fixup_offset;
3337
3338 fixup_offset = srofixup->reloc_count++ * 4;
3339 BFD_ASSERT (fixup_offset < srofixup->size);
3340 bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
3341 }
3342
3343 /* Return the offset of the generated .got section from the
3344 _GLOBAL_OFFSET_TABLE_ symbol. */
3345
3346 static bfd_signed_vma
3347 sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
3348 {
3349 return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset
3350 - htab->root.hgot->root.u.def.value);
3351 }
3352
3353 /* Find the segment number in which OSEC, and output section, is
3354 located. */
3355
3356 static unsigned
3357 sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
3358 {
3359 Elf_Internal_Phdr *p = NULL;
3360
3361 if (output_bfd->xvec->flavour == bfd_target_elf_flavour
3362 /* PR ld/17110: Do not look for output segments in an input bfd. */
3363 && output_bfd->direction != read_direction)
3364 p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
3365
3366 /* FIXME: Nothing ever says what this index is relative to. The kernel
3367 supplies data in terms of the number of load segments but this is
3368 a phdr index and the first phdr may not be a load segment. */
3369 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
3370 }
3371
3372 static bfd_boolean
3373 sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
3374 {
3375 unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
3376
3377 return (seg != (unsigned) -1
3378 && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
3379 }
3380
3381 /* Generate the initial contents of a local function descriptor, along
3382 with any relocations or fixups required. */
3383 static bfd_boolean
3384 sh_elf_initialize_funcdesc (bfd *output_bfd,
3385 struct bfd_link_info *info,
3386 struct elf_link_hash_entry *h,
3387 bfd_vma offset,
3388 asection *section,
3389 bfd_vma value)
3390 {
3391 struct elf_sh_link_hash_table *htab;
3392 int dynindx;
3393 bfd_vma addr, seg;
3394
3395 htab = sh_elf_hash_table (info);
3396
3397 /* FIXME: The ABI says that the offset to the function goes in the
3398 descriptor, along with the segment index. We're RELA, so it could
3399 go in the reloc instead... */
3400
3401 if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
3402 {
3403 section = h->root.u.def.section;
3404 value = h->root.u.def.value;
3405 }
3406
3407 if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
3408 {
3409 dynindx = elf_section_data (section->output_section)->dynindx;
3410 addr = value + section->output_offset;
3411 seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
3412 }
3413 else
3414 {
3415 BFD_ASSERT (h->dynindx != -1);
3416 dynindx = h->dynindx;
3417 addr = seg = 0;
3418 }
3419
3420 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
3421 {
3422 if (h == NULL || h->root.type != bfd_link_hash_undefweak)
3423 {
3424 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3425 offset
3426 + htab->sfuncdesc->output_section->vma
3427 + htab->sfuncdesc->output_offset);
3428 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3429 offset + 4
3430 + htab->sfuncdesc->output_section->vma
3431 + htab->sfuncdesc->output_offset);
3432 }
3433
3434 /* There are no dynamic relocations so fill in the final
3435 address and gp value (barring fixups). */
3436 addr += section->output_section->vma;
3437 seg = htab->root.hgot->root.u.def.value
3438 + htab->root.hgot->root.u.def.section->output_section->vma
3439 + htab->root.hgot->root.u.def.section->output_offset;
3440 }
3441 else
3442 sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
3443 offset
3444 + htab->sfuncdesc->output_section->vma
3445 + htab->sfuncdesc->output_offset,
3446 R_SH_FUNCDESC_VALUE, dynindx, 0);
3447
3448 bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
3449 bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
3450
3451 return TRUE;
3452 }
3453
3454 /* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3455 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3456 otherwise. */
3457
3458 static bfd_reloc_status_type
3459 install_movi20_field (bfd *output_bfd, unsigned long relocation,
3460 bfd *input_bfd, asection *input_section,
3461 bfd_byte *contents, bfd_vma offset)
3462 {
3463 unsigned long cur_val;
3464 bfd_byte *addr;
3465 bfd_reloc_status_type r;
3466
3467 if (offset > bfd_get_section_limit (input_bfd, input_section))
3468 return bfd_reloc_outofrange;
3469
3470 r = bfd_check_overflow (complain_overflow_signed, 20, 0,
3471 bfd_arch_bits_per_address (input_bfd), relocation);
3472 if (r != bfd_reloc_ok)
3473 return r;
3474
3475 addr = contents + offset;
3476 cur_val = bfd_get_16 (output_bfd, addr);
3477 bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
3478 bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
3479
3480 return bfd_reloc_ok;
3481 }
3482
3483 /* Relocate an SH ELF section. */
3484
3485 static bfd_boolean
3486 sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3487 bfd *input_bfd, asection *input_section,
3488 bfd_byte *contents, Elf_Internal_Rela *relocs,
3489 Elf_Internal_Sym *local_syms,
3490 asection **local_sections)
3491 {
3492 struct elf_sh_link_hash_table *htab;
3493 Elf_Internal_Shdr *symtab_hdr;
3494 struct elf_link_hash_entry **sym_hashes;
3495 Elf_Internal_Rela *rel, *relend;
3496 bfd_vma *local_got_offsets;
3497 asection *sgot = NULL;
3498 asection *sgotplt = NULL;
3499 asection *splt = NULL;
3500 asection *sreloc = NULL;
3501 asection *srelgot = NULL;
3502 bfd_boolean is_vxworks_tls;
3503 unsigned isec_segment, got_segment, plt_segment, check_segment[2];
3504 bfd_boolean fdpic_p = FALSE;
3505
3506 if (!is_sh_elf (input_bfd))
3507 {
3508 bfd_set_error (bfd_error_wrong_format);
3509 return FALSE;
3510 }
3511
3512 htab = sh_elf_hash_table (info);
3513 if (htab != NULL)
3514 {
3515 sgot = htab->root.sgot;
3516 sgotplt = htab->root.sgotplt;
3517 srelgot = htab->root.srelgot;
3518 splt = htab->root.splt;
3519 fdpic_p = htab->fdpic_p;
3520 }
3521 symtab_hdr = &elf_symtab_hdr (input_bfd);
3522 sym_hashes = elf_sym_hashes (input_bfd);
3523 local_got_offsets = elf_local_got_offsets (input_bfd);
3524
3525 isec_segment = sh_elf_osec_to_segment (output_bfd,
3526 input_section->output_section);
3527 if (fdpic_p && sgot)
3528 got_segment = sh_elf_osec_to_segment (output_bfd,
3529 sgot->output_section);
3530 else
3531 got_segment = -1;
3532 if (fdpic_p && splt)
3533 plt_segment = sh_elf_osec_to_segment (output_bfd,
3534 splt->output_section);
3535 else
3536 plt_segment = -1;
3537
3538 /* We have to handle relocations in vxworks .tls_vars sections
3539 specially, because the dynamic loader is 'weird'. */
3540 is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info)
3541 && !strcmp (input_section->output_section->name,
3542 ".tls_vars"));
3543
3544 rel = relocs;
3545 relend = relocs + input_section->reloc_count;
3546 for (; rel < relend; rel++)
3547 {
3548 int r_type;
3549 reloc_howto_type *howto;
3550 unsigned long r_symndx;
3551 Elf_Internal_Sym *sym;
3552 asection *sec;
3553 struct elf_link_hash_entry *h;
3554 bfd_vma relocation;
3555 bfd_vma addend = (bfd_vma) 0;
3556 bfd_reloc_status_type r;
3557 bfd_vma off;
3558 enum got_type got_type;
3559 const char *symname = NULL;
3560 bfd_boolean resolved_to_zero;
3561
3562 r_symndx = ELF32_R_SYM (rel->r_info);
3563
3564 r_type = ELF32_R_TYPE (rel->r_info);
3565
3566 /* Many of the relocs are only used for relaxing, and are
3567 handled entirely by the relaxation code. */
3568 if (r_type >= (int) R_SH_GNU_VTINHERIT
3569 && r_type <= (int) R_SH_LABEL)
3570 continue;
3571 if (r_type == (int) R_SH_NONE)
3572 continue;
3573
3574 if (r_type < 0
3575 || r_type >= R_SH_max
3576 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
3577 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
3578 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
3579 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
3580 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
3581 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
3582 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
3583 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
3584 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
3585 && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
3586 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
3587 && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
3588 {
3589 bfd_set_error (bfd_error_bad_value);
3590 return FALSE;
3591 }
3592
3593 howto = get_howto_table (output_bfd) + r_type;
3594
3595 /* For relocs that aren't partial_inplace, we get the addend from
3596 the relocation. */
3597 if (! howto->partial_inplace)
3598 addend = rel->r_addend;
3599
3600 resolved_to_zero = FALSE;
3601 h = NULL;
3602 sym = NULL;
3603 sec = NULL;
3604 check_segment[0] = -1;
3605 check_segment[1] = -1;
3606 if (r_symndx < symtab_hdr->sh_info)
3607 {
3608 sym = local_syms + r_symndx;
3609 sec = local_sections[r_symndx];
3610
3611 symname = bfd_elf_string_from_elf_section
3612 (input_bfd, symtab_hdr->sh_link, sym->st_name);
3613 if (symname == NULL || *symname == '\0')
3614 symname = bfd_section_name (sec);
3615
3616 relocation = (sec->output_section->vma
3617 + sec->output_offset
3618 + sym->st_value);
3619
3620 if (sec != NULL && discarded_section (sec))
3621 /* Handled below. */
3622 ;
3623 else if (bfd_link_relocatable (info))
3624 {
3625 /* This is a relocatable link. We don't have to change
3626 anything, unless the reloc is against a section symbol,
3627 in which case we have to adjust according to where the
3628 section symbol winds up in the output section. */
3629 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3630 {
3631 if (! howto->partial_inplace)
3632 {
3633 /* For relocations with the addend in the
3634 relocation, we need just to update the addend.
3635 All real relocs are of type partial_inplace; this
3636 code is mostly for completeness. */
3637 rel->r_addend += sec->output_offset;
3638
3639 continue;
3640 }
3641
3642 /* Relocs of type partial_inplace need to pick up the
3643 contents in the contents and add the offset resulting
3644 from the changed location of the section symbol.
3645 Using _bfd_final_link_relocate (e.g. goto
3646 final_link_relocate) here would be wrong, because
3647 relocations marked pc_relative would get the current
3648 location subtracted, and we must only do that at the
3649 final link. */
3650 r = _bfd_relocate_contents (howto, input_bfd,
3651 sec->output_offset
3652 + sym->st_value,
3653 contents + rel->r_offset);
3654 goto relocation_done;
3655 }
3656
3657 continue;
3658 }
3659 else if (! howto->partial_inplace)
3660 {
3661 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3662 addend = rel->r_addend;
3663 }
3664 else if ((sec->flags & SEC_MERGE)
3665 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3666 {
3667 asection *msec;
3668
3669 if (howto->rightshift || howto->src_mask != 0xffffffff)
3670 {
3671 _bfd_error_handler
3672 /* xgettext:c-format */
3673 (_("%pB(%pA+%#" PRIx64 "): "
3674 "%s relocation against SEC_MERGE section"),
3675 input_bfd, input_section,
3676 (uint64_t) rel->r_offset, howto->name);
3677 return FALSE;
3678 }
3679
3680 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
3681 msec = sec;
3682 addend =
3683 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
3684 - relocation;
3685 addend += msec->output_section->vma + msec->output_offset;
3686 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
3687 addend = 0;
3688 }
3689 }
3690 else
3691 {
3692 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
3693
3694 relocation = 0;
3695 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3696 symname = h->root.root.string;
3697 while (h->root.type == bfd_link_hash_indirect
3698 || h->root.type == bfd_link_hash_warning)
3699 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3700 if (h->root.type == bfd_link_hash_defined
3701 || h->root.type == bfd_link_hash_defweak)
3702 {
3703 bfd_boolean dyn;
3704
3705 dyn = htab ? htab->root.dynamic_sections_created : FALSE;
3706 sec = h->root.u.def.section;
3707 /* In these cases, we don't need the relocation value.
3708 We check specially because in some obscure cases
3709 sec->output_section will be NULL. */
3710 if (r_type == R_SH_GOTPC
3711 || r_type == R_SH_GOTPC_LOW16
3712 || r_type == R_SH_GOTPC_MEDLOW16
3713 || r_type == R_SH_GOTPC_MEDHI16
3714 || r_type == R_SH_GOTPC_HI16
3715 || ((r_type == R_SH_PLT32
3716 || r_type == R_SH_PLT_LOW16
3717 || r_type == R_SH_PLT_MEDLOW16
3718 || r_type == R_SH_PLT_MEDHI16
3719 || r_type == R_SH_PLT_HI16)
3720 && h->plt.offset != (bfd_vma) -1)
3721 || ((r_type == R_SH_GOT32
3722 || r_type == R_SH_GOT20
3723 || r_type == R_SH_GOTFUNCDESC
3724 || r_type == R_SH_GOTFUNCDESC20
3725 || r_type == R_SH_GOTOFFFUNCDESC
3726 || r_type == R_SH_GOTOFFFUNCDESC20
3727 || r_type == R_SH_FUNCDESC
3728 || r_type == R_SH_GOT_LOW16
3729 || r_type == R_SH_GOT_MEDLOW16
3730 || r_type == R_SH_GOT_MEDHI16
3731 || r_type == R_SH_GOT_HI16)
3732 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3733 bfd_link_pic (info),
3734 h)
3735 && (! bfd_link_pic (info)
3736 || (! info->symbolic && h->dynindx != -1)
3737 || !h->def_regular))
3738 /* The cases above are those in which relocation is
3739 overwritten in the switch block below. The cases
3740 below are those in which we must defer relocation
3741 to run-time, because we can't resolve absolute
3742 addresses when creating a shared library. */
3743 || (bfd_link_pic (info)
3744 && ((! info->symbolic && h->dynindx != -1)
3745 || !h->def_regular)
3746 && ((r_type == R_SH_DIR32
3747 && !h->forced_local)
3748 || (r_type == R_SH_REL32
3749 && !SYMBOL_CALLS_LOCAL (info, h)))
3750 && ((input_section->flags & SEC_ALLOC) != 0
3751 /* DWARF will emit R_SH_DIR32 relocations in its
3752 sections against symbols defined externally
3753 in shared libraries. We can't do anything
3754 with them here. */
3755 || ((input_section->flags & SEC_DEBUGGING) != 0
3756 && h->def_dynamic)))
3757 /* Dynamic relocs are not propagated for SEC_DEBUGGING
3758 sections because such sections are not SEC_ALLOC and
3759 thus ld.so will not process them. */
3760 || (sec->output_section == NULL
3761 && ((input_section->flags & SEC_DEBUGGING) != 0
3762 && h->def_dynamic))
3763 || (sec->output_section == NULL
3764 && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
3765 || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
3766 ;
3767 else if (sec->output_section != NULL)
3768 relocation = (h->root.u.def.value
3769 + sec->output_section->vma
3770 + sec->output_offset);
3771 else if (!bfd_link_relocatable (info)
3772 && (_bfd_elf_section_offset (output_bfd, info,
3773 input_section,
3774 rel->r_offset)
3775 != (bfd_vma) -1))
3776 {
3777 _bfd_error_handler
3778 /* xgettext:c-format */
3779 (_("%pB(%pA+%#" PRIx64 "): "
3780 "unresolvable %s relocation against symbol `%s'"),
3781 input_bfd,
3782 input_section,
3783 (uint64_t) rel->r_offset,
3784 howto->name,
3785 h->root.root.string);
3786 return FALSE;
3787 }
3788 }
3789 else if (h->root.type == bfd_link_hash_undefweak)
3790 resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h);
3791 else if (info->unresolved_syms_in_objects == RM_IGNORE
3792 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
3793 ;
3794 else if (!bfd_link_relocatable (info))
3795 info->callbacks->undefined_symbol
3796 (info, h->root.root.string, input_bfd, input_section,
3797 rel->r_offset,
3798 (info->unresolved_syms_in_objects == RM_DIAGNOSE
3799 && !info->warn_unresolved_syms)
3800 || ELF_ST_VISIBILITY (h->other));
3801 }
3802
3803 if (sec != NULL && discarded_section (sec))
3804 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3805 rel, 1, relend, howto, 0, contents);
3806
3807 if (bfd_link_relocatable (info))
3808 continue;
3809
3810 /* Check for inter-segment relocations in FDPIC files. Most
3811 relocations connect the relocation site to the location of
3812 the target symbol, but there are some exceptions below. */
3813 check_segment[0] = isec_segment;
3814 if (sec != NULL)
3815 check_segment[1] = sh_elf_osec_to_segment (output_bfd,
3816 sec->output_section);
3817 else
3818 check_segment[1] = -1;
3819
3820 switch ((int) r_type)
3821 {
3822 final_link_relocate:
3823 /* COFF relocs don't use the addend. The addend is used for
3824 R_SH_DIR32 to be compatible with other compilers. */
3825 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3826 contents, rel->r_offset,
3827 relocation, addend);
3828 break;
3829
3830 case R_SH_IND12W:
3831 goto final_link_relocate;
3832
3833 case R_SH_DIR8WPN:
3834 case R_SH_DIR8WPZ:
3835 case R_SH_DIR8WPL:
3836 /* If the reloc is against the start of this section, then
3837 the assembler has already taken care of it and the reloc
3838 is here only to assist in relaxing. If the reloc is not
3839 against the start of this section, then it's against an
3840 external symbol and we must deal with it ourselves. */
3841 if (input_section->output_section->vma + input_section->output_offset
3842 != relocation)
3843 {
3844 int disp = (relocation
3845 - input_section->output_section->vma
3846 - input_section->output_offset
3847 - rel->r_offset);
3848 int mask = 0;
3849 switch (r_type)
3850 {
3851 case R_SH_DIR8WPN:
3852 case R_SH_DIR8WPZ: mask = 1; break;
3853 case R_SH_DIR8WPL: mask = 3; break;
3854 default: mask = 0; break;
3855 }
3856 if (disp & mask)
3857 {
3858 _bfd_error_handler
3859 /* xgettext:c-format */
3860 (_("%pB: %#" PRIx64 ": fatal: "
3861 "unaligned branch target for relax-support relocation"),
3862 input_section->owner,
3863 (uint64_t) rel->r_offset);
3864 bfd_set_error (bfd_error_bad_value);
3865 return FALSE;
3866 }
3867 relocation -= 4;
3868 goto final_link_relocate;
3869 }
3870 r = bfd_reloc_ok;
3871 break;
3872
3873 default:
3874 bfd_set_error (bfd_error_bad_value);
3875 return FALSE;
3876
3877 case R_SH_DIR16:
3878 case R_SH_DIR8:
3879 case R_SH_DIR8U:
3880 case R_SH_DIR8S:
3881 case R_SH_DIR4U:
3882 goto final_link_relocate;
3883
3884 case R_SH_DIR8UL:
3885 case R_SH_DIR4UL:
3886 if (relocation & 3)
3887 {
3888 _bfd_error_handler
3889 /* xgettext:c-format */
3890 (_("%pB: %#" PRIx64 ": fatal: "
3891 "unaligned %s relocation %#" PRIx64),
3892 input_section->owner, (uint64_t) rel->r_offset,
3893 howto->name, (uint64_t) relocation);
3894 bfd_set_error (bfd_error_bad_value);
3895 return FALSE;
3896 }
3897 goto final_link_relocate;
3898
3899 case R_SH_DIR8UW:
3900 case R_SH_DIR8SW:
3901 case R_SH_DIR4UW:
3902 if (relocation & 1)
3903 {
3904 _bfd_error_handler
3905 /* xgettext:c-format */
3906 (_("%pB: %#" PRIx64 ": fatal: "
3907 "unaligned %s relocation %#" PRIx64 ""),
3908 input_section->owner,
3909 (uint64_t) rel->r_offset, howto->name,
3910 (uint64_t) relocation);
3911 bfd_set_error (bfd_error_bad_value);
3912 return FALSE;
3913 }
3914 goto final_link_relocate;
3915
3916 case R_SH_PSHA:
3917 if ((signed int)relocation < -32
3918 || (signed int)relocation > 32)
3919 {
3920 _bfd_error_handler
3921 /* xgettext:c-format */
3922 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64
3923 " not in range -32..32"),
3924 input_section->owner,
3925 (uint64_t) rel->r_offset,
3926 (int64_t) relocation);
3927 bfd_set_error (bfd_error_bad_value);
3928 return FALSE;
3929 }
3930 goto final_link_relocate;
3931
3932 case R_SH_PSHL:
3933 if ((signed int)relocation < -16
3934 || (signed int)relocation > 16)
3935 {
3936 _bfd_error_handler
3937 /* xgettext:c-format */
3938 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64
3939 " not in range -32..32"),
3940 input_section->owner,
3941 (uint64_t) rel->r_offset,
3942 (int64_t) relocation);
3943 bfd_set_error (bfd_error_bad_value);
3944 return FALSE;
3945 }
3946 goto final_link_relocate;
3947
3948 case R_SH_DIR32:
3949 case R_SH_REL32:
3950 if (bfd_link_pic (info)
3951 && (h == NULL
3952 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3953 && !resolved_to_zero)
3954 || h->root.type != bfd_link_hash_undefweak)
3955 && r_symndx != STN_UNDEF
3956 && (input_section->flags & SEC_ALLOC) != 0
3957 && !is_vxworks_tls
3958 && (r_type == R_SH_DIR32
3959 || !SYMBOL_CALLS_LOCAL (info, h)))
3960 {
3961 Elf_Internal_Rela outrel;
3962 bfd_byte *loc;
3963 bfd_boolean skip, relocate;
3964
3965 /* When generating a shared object, these relocations
3966 are copied into the output file to be resolved at run
3967 time. */
3968
3969 if (sreloc == NULL)
3970 {
3971 sreloc = _bfd_elf_get_dynamic_reloc_section
3972 (input_bfd, input_section, /*rela?*/ TRUE);
3973 if (sreloc == NULL)
3974 return FALSE;
3975 }
3976
3977 skip = FALSE;
3978 relocate = FALSE;
3979
3980 outrel.r_offset =
3981 _bfd_elf_section_offset (output_bfd, info, input_section,
3982 rel->r_offset);
3983 if (outrel.r_offset == (bfd_vma) -1)
3984 skip = TRUE;
3985 else if (outrel.r_offset == (bfd_vma) -2)
3986 skip = TRUE, relocate = TRUE;
3987 outrel.r_offset += (input_section->output_section->vma
3988 + input_section->output_offset);
3989
3990 if (skip)
3991 memset (&outrel, 0, sizeof outrel);
3992 else if (r_type == R_SH_REL32)
3993 {
3994 BFD_ASSERT (h != NULL && h->dynindx != -1);
3995 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
3996 outrel.r_addend
3997 = (howto->partial_inplace
3998 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
3999 : addend);
4000 }
4001 else if (fdpic_p
4002 && (h == NULL
4003 || ((info->symbolic || h->dynindx == -1)
4004 && h->def_regular)))
4005 {
4006 int dynindx;
4007
4008 BFD_ASSERT (sec != NULL);
4009 BFD_ASSERT (sec->output_section != NULL);
4010 dynindx = elf_section_data (sec->output_section)->dynindx;
4011 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4012 outrel.r_addend = relocation;
4013 outrel.r_addend
4014 += (howto->partial_inplace
4015 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4016 : addend);
4017 outrel.r_addend -= sec->output_section->vma;
4018 }
4019 else
4020 {
4021 /* h->dynindx may be -1 if this symbol was marked to
4022 become local. */
4023 if (h == NULL
4024 || ((info->symbolic || h->dynindx == -1)
4025 && h->def_regular))
4026 {
4027 relocate = howto->partial_inplace;
4028 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4029 }
4030 else
4031 {
4032 BFD_ASSERT (h->dynindx != -1);
4033 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
4034 }
4035 outrel.r_addend = relocation;
4036 outrel.r_addend
4037 += (howto->partial_inplace
4038 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4039 : addend);
4040 }
4041
4042 loc = sreloc->contents;
4043 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4044 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4045
4046 check_segment[0] = check_segment[1] = -1;
4047
4048 /* If this reloc is against an external symbol, we do
4049 not want to fiddle with the addend. Otherwise, we
4050 need to include the symbol value so that it becomes
4051 an addend for the dynamic reloc. */
4052 if (! relocate)
4053 continue;
4054 }
4055 else if (fdpic_p && !bfd_link_pic (info)
4056 && r_type == R_SH_DIR32
4057 && (input_section->flags & SEC_ALLOC) != 0)
4058 {
4059 bfd_vma offset;
4060
4061 BFD_ASSERT (htab);
4062
4063 if (sh_elf_osec_readonly_p (output_bfd,
4064 input_section->output_section))
4065 {
4066 _bfd_error_handler
4067 /* xgettext:c-format */
4068 (_("%pB(%pA+%#" PRIx64 "): "
4069 "cannot emit fixup to `%s' in read-only section"),
4070 input_bfd,
4071 input_section,
4072 (uint64_t) rel->r_offset,
4073 symname);
4074 return FALSE;
4075 }
4076
4077 offset = _bfd_elf_section_offset (output_bfd, info,
4078 input_section, rel->r_offset);
4079 if (offset != (bfd_vma)-1)
4080 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4081 input_section->output_section->vma
4082 + input_section->output_offset
4083 + rel->r_offset);
4084
4085 check_segment[0] = check_segment[1] = -1;
4086 }
4087 /* We don't want warnings for non-NULL tests on undefined weak
4088 symbols. */
4089 else if (r_type == R_SH_REL32
4090 && h
4091 && h->root.type == bfd_link_hash_undefweak)
4092 check_segment[0] = check_segment[1] = -1;
4093 goto final_link_relocate;
4094
4095 case R_SH_GOTPLT32:
4096 /* Relocation is to the entry for this symbol in the
4097 procedure linkage table. */
4098
4099 if (h == NULL
4100 || h->forced_local
4101 || ! bfd_link_pic (info)
4102 || info->symbolic
4103 || h->dynindx == -1
4104 || h->plt.offset == (bfd_vma) -1
4105 || h->got.offset != (bfd_vma) -1)
4106 goto force_got;
4107
4108 /* Relocation is to the entry for this symbol in the global
4109 offset table extension for the procedure linkage table. */
4110
4111 BFD_ASSERT (htab);
4112 BFD_ASSERT (sgotplt != NULL);
4113 relocation = (sgotplt->output_offset
4114 + (get_plt_index (htab->plt_info, h->plt.offset)
4115 + 3) * 4);
4116
4117 #ifdef GOT_BIAS
4118 relocation -= GOT_BIAS;
4119 #endif
4120
4121 goto final_link_relocate;
4122
4123 force_got:
4124 case R_SH_GOT32:
4125 case R_SH_GOT20:
4126 /* Relocation is to the entry for this symbol in the global
4127 offset table. */
4128
4129 BFD_ASSERT (htab);
4130 BFD_ASSERT (sgot != NULL);
4131 check_segment[0] = check_segment[1] = -1;
4132
4133 if (h != NULL)
4134 {
4135 bfd_boolean dyn;
4136
4137 off = h->got.offset;
4138 BFD_ASSERT (off != (bfd_vma) -1);
4139
4140 dyn = htab->root.dynamic_sections_created;
4141 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4142 bfd_link_pic (info),
4143 h)
4144 || (bfd_link_pic (info)
4145 && SYMBOL_REFERENCES_LOCAL (info, h))
4146 || ((ELF_ST_VISIBILITY (h->other)
4147 || resolved_to_zero)
4148 && h->root.type == bfd_link_hash_undefweak))
4149 {
4150 /* This is actually a static link, or it is a
4151 -Bsymbolic link and the symbol is defined
4152 locally, or the symbol was forced to be local
4153 because of a version file. We must initialize
4154 this entry in the global offset table. Since the
4155 offset must always be a multiple of 4, we use the
4156 least significant bit to record whether we have
4157 initialized it already.
4158
4159 When doing a dynamic link, we create a .rela.got
4160 relocation entry to initialize the value. This
4161 is done in the finish_dynamic_symbol routine. */
4162 if ((off & 1) != 0)
4163 off &= ~1;
4164 else
4165 {
4166 bfd_put_32 (output_bfd, relocation,
4167 sgot->contents + off);
4168 h->got.offset |= 1;
4169
4170 /* If we initialize the GOT entry here with a valid
4171 symbol address, also add a fixup. */
4172 if (fdpic_p && !bfd_link_pic (info)
4173 && sh_elf_hash_entry (h)->got_type == GOT_NORMAL
4174 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4175 || h->root.type != bfd_link_hash_undefweak))
4176 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4177 sgot->output_section->vma
4178 + sgot->output_offset
4179 + off);
4180 }
4181 }
4182
4183 relocation = sh_elf_got_offset (htab) + off;
4184 }
4185 else
4186 {
4187 BFD_ASSERT (local_got_offsets != NULL
4188 && local_got_offsets[r_symndx] != (bfd_vma) -1);
4189
4190 off = local_got_offsets[r_symndx];
4191
4192 /* The offset must always be a multiple of 4. We use
4193 the least significant bit to record whether we have
4194 already generated the necessary reloc. */
4195 if ((off & 1) != 0)
4196 off &= ~1;
4197 else
4198 {
4199 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4200
4201 if (bfd_link_pic (info))
4202 {
4203 Elf_Internal_Rela outrel;
4204 bfd_byte *loc;
4205
4206 outrel.r_offset = (sgot->output_section->vma
4207 + sgot->output_offset
4208 + off);
4209 if (fdpic_p)
4210 {
4211 int dynindx
4212 = elf_section_data (sec->output_section)->dynindx;
4213 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4214 outrel.r_addend = relocation;
4215 outrel.r_addend -= sec->output_section->vma;
4216 }
4217 else
4218 {
4219 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4220 outrel.r_addend = relocation;
4221 }
4222 loc = srelgot->contents;
4223 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4224 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4225 }
4226 else if (fdpic_p
4227 && (sh_elf_local_got_type (input_bfd) [r_symndx]
4228 == GOT_NORMAL))
4229 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4230 sgot->output_section->vma
4231 + sgot->output_offset
4232 + off);
4233
4234 local_got_offsets[r_symndx] |= 1;
4235 }
4236
4237 relocation = sh_elf_got_offset (htab) + off;
4238 }
4239
4240 #ifdef GOT_BIAS
4241 relocation -= GOT_BIAS;
4242 #endif
4243
4244 if (r_type == R_SH_GOT20)
4245 {
4246 r = install_movi20_field (output_bfd, relocation + addend,
4247 input_bfd, input_section, contents,
4248 rel->r_offset);
4249 break;
4250 }
4251 else
4252 goto final_link_relocate;
4253
4254 case R_SH_GOTOFF:
4255 case R_SH_GOTOFF20:
4256 /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4257 we place at the start of the .got.plt section. This is the same
4258 as the start of the output .got section, unless there are function
4259 descriptors in front of it. */
4260 BFD_ASSERT (htab);
4261 BFD_ASSERT (sgotplt != NULL);
4262 check_segment[0] = got_segment;
4263 relocation -= sgotplt->output_section->vma + sgotplt->output_offset
4264 + htab->root.hgot->root.u.def.value;
4265
4266 #ifdef GOT_BIAS
4267 relocation -= GOT_BIAS;
4268 #endif
4269
4270 addend = rel->r_addend;
4271
4272 if (r_type == R_SH_GOTOFF20)
4273 {
4274 r = install_movi20_field (output_bfd, relocation + addend,
4275 input_bfd, input_section, contents,
4276 rel->r_offset);
4277 break;
4278 }
4279 else
4280 goto final_link_relocate;
4281
4282 case R_SH_GOTPC:
4283 /* Use global offset table as symbol value. */
4284
4285 BFD_ASSERT (sgotplt != NULL);
4286 relocation = sgotplt->output_section->vma + sgotplt->output_offset;
4287
4288 #ifdef GOT_BIAS
4289 relocation += GOT_BIAS;
4290 #endif
4291
4292 addend = rel->r_addend;
4293
4294 goto final_link_relocate;
4295
4296 case R_SH_PLT32:
4297 /* Relocation is to the entry for this symbol in the
4298 procedure linkage table. */
4299
4300 /* Resolve a PLT reloc against a local symbol directly,
4301 without using the procedure linkage table. */
4302 if (h == NULL)
4303 goto final_link_relocate;
4304
4305 /* We don't want to warn on calls to undefined weak symbols,
4306 as calls to them must be protected by non-NULL tests
4307 anyway, and unprotected calls would invoke undefined
4308 behavior. */
4309 if (h->root.type == bfd_link_hash_undefweak)
4310 check_segment[0] = check_segment[1] = -1;
4311
4312 if (h->forced_local)
4313 goto final_link_relocate;
4314
4315 if (h->plt.offset == (bfd_vma) -1)
4316 {
4317 /* We didn't make a PLT entry for this symbol. This
4318 happens when statically linking PIC code, or when
4319 using -Bsymbolic. */
4320 goto final_link_relocate;
4321 }
4322
4323 BFD_ASSERT (splt != NULL);
4324 check_segment[1] = plt_segment;
4325 relocation = (splt->output_section->vma
4326 + splt->output_offset
4327 + h->plt.offset);
4328
4329 addend = rel->r_addend;
4330
4331 goto final_link_relocate;
4332
4333 /* Relocation is to the canonical function descriptor for this
4334 symbol, possibly via the GOT. Initialize the GOT
4335 entry and function descriptor if necessary. */
4336 case R_SH_GOTFUNCDESC:
4337 case R_SH_GOTFUNCDESC20:
4338 case R_SH_FUNCDESC:
4339 {
4340 int dynindx = -1;
4341 asection *reloc_section;
4342 bfd_vma reloc_offset;
4343 int reloc_type = R_SH_FUNCDESC;
4344
4345 BFD_ASSERT (htab);
4346
4347 check_segment[0] = check_segment[1] = -1;
4348
4349 /* FIXME: See what FRV does for global symbols in the
4350 executable, with --export-dynamic. Do they need ld.so
4351 to allocate official descriptors? See what this code
4352 does. */
4353
4354 relocation = 0;
4355 addend = 0;
4356
4357 if (r_type == R_SH_FUNCDESC)
4358 {
4359 reloc_section = input_section;
4360 reloc_offset = rel->r_offset;
4361 }
4362 else
4363 {
4364 reloc_section = sgot;
4365
4366 if (h != NULL)
4367 reloc_offset = h->got.offset;
4368 else
4369 {
4370 BFD_ASSERT (local_got_offsets != NULL);
4371 reloc_offset = local_got_offsets[r_symndx];
4372 }
4373 BFD_ASSERT (reloc_offset != MINUS_ONE);
4374
4375 if (reloc_offset & 1)
4376 {
4377 reloc_offset &= ~1;
4378 goto funcdesc_done_got;
4379 }
4380 }
4381
4382 if (h && h->root.type == bfd_link_hash_undefweak
4383 && (SYMBOL_CALLS_LOCAL (info, h)
4384 || !htab->root.dynamic_sections_created))
4385 /* Undefined weak symbol which will not be dynamically
4386 resolved later; leave it at zero. */
4387 goto funcdesc_leave_zero;
4388 else if (SYMBOL_CALLS_LOCAL (info, h)
4389 && ! SYMBOL_FUNCDESC_LOCAL (info, h))
4390 {
4391 /* If the symbol needs a non-local function descriptor
4392 but binds locally (i.e., its visibility is
4393 protected), emit a dynamic relocation decayed to
4394 section+offset. This is an optimization; the dynamic
4395 linker would resolve our function descriptor request
4396 to our copy of the function anyway. */
4397 dynindx = elf_section_data (h->root.u.def.section
4398 ->output_section)->dynindx;
4399 relocation += h->root.u.def.section->output_offset
4400 + h->root.u.def.value;
4401 }
4402 else if (! SYMBOL_FUNCDESC_LOCAL (info, h))
4403 {
4404 /* If the symbol is dynamic and there will be dynamic
4405 symbol resolution because we are or are linked with a
4406 shared library, emit a FUNCDESC relocation such that
4407 the dynamic linker will allocate the function
4408 descriptor. */
4409 BFD_ASSERT (h->dynindx != -1);
4410 dynindx = h->dynindx;
4411 }
4412 else
4413 {
4414 bfd_vma offset;
4415
4416 /* Otherwise, we know we have a private function
4417 descriptor, so reference it directly. */
4418 reloc_type = R_SH_DIR32;
4419 dynindx = elf_section_data (htab->sfuncdesc
4420 ->output_section)->dynindx;
4421
4422 if (h)
4423 {
4424 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4425 BFD_ASSERT (offset != MINUS_ONE);
4426 if ((offset & 1) == 0)
4427 {
4428 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4429 offset, NULL, 0))
4430 return FALSE;
4431 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4432 }
4433 }
4434 else
4435 {
4436 union gotref *local_funcdesc;
4437
4438 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4439 offset = local_funcdesc[r_symndx].offset;
4440 BFD_ASSERT (offset != MINUS_ONE);
4441 if ((offset & 1) == 0)
4442 {
4443 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4444 offset, sec,
4445 sym->st_value))
4446 return FALSE;
4447 local_funcdesc[r_symndx].offset |= 1;
4448 }
4449 }
4450
4451 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4452 }
4453
4454 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
4455 {
4456 bfd_vma offset;
4457
4458 if (sh_elf_osec_readonly_p (output_bfd,
4459 reloc_section->output_section))
4460 {
4461 _bfd_error_handler
4462 /* xgettext:c-format */
4463 (_("%pB(%pA+%#" PRIx64 "): "
4464 "cannot emit fixup to `%s' in read-only section"),
4465 input_bfd,
4466 input_section,
4467 (uint64_t) rel->r_offset,
4468 symname);
4469 return FALSE;
4470 }
4471
4472 offset = _bfd_elf_section_offset (output_bfd, info,
4473 reloc_section, reloc_offset);
4474
4475 if (offset != (bfd_vma)-1)
4476 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4477 offset
4478 + reloc_section->output_section->vma
4479 + reloc_section->output_offset);
4480 }
4481 else if ((reloc_section->output_section->flags
4482 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
4483 {
4484 bfd_vma offset;
4485
4486 if (sh_elf_osec_readonly_p (output_bfd,
4487 reloc_section->output_section))
4488 {
4489 info->callbacks->warning
4490 (info,
4491 _("cannot emit dynamic relocations in read-only section"),
4492 symname, input_bfd, reloc_section, reloc_offset);
4493 return FALSE;
4494 }
4495
4496 offset = _bfd_elf_section_offset (output_bfd, info,
4497 reloc_section, reloc_offset);
4498
4499 if (offset != (bfd_vma)-1)
4500 sh_elf_add_dyn_reloc (output_bfd, srelgot,
4501 offset
4502 + reloc_section->output_section->vma
4503 + reloc_section->output_offset,
4504 reloc_type, dynindx, relocation);
4505
4506 if (r_type == R_SH_FUNCDESC)
4507 {
4508 r = bfd_reloc_ok;
4509 break;
4510 }
4511 else
4512 {
4513 relocation = 0;
4514 goto funcdesc_leave_zero;
4515 }
4516 }
4517
4518 if (SYMBOL_FUNCDESC_LOCAL (info, h))
4519 relocation += htab->sfuncdesc->output_section->vma;
4520 funcdesc_leave_zero:
4521 if (r_type != R_SH_FUNCDESC)
4522 {
4523 bfd_put_32 (output_bfd, relocation,
4524 reloc_section->contents + reloc_offset);
4525 if (h != NULL)
4526 h->got.offset |= 1;
4527 else
4528 local_got_offsets[r_symndx] |= 1;
4529
4530 funcdesc_done_got:
4531
4532 relocation = sh_elf_got_offset (htab) + reloc_offset;
4533 #ifdef GOT_BIAS
4534 relocation -= GOT_BIAS;
4535 #endif
4536 }
4537 if (r_type == R_SH_GOTFUNCDESC20)
4538 {
4539 r = install_movi20_field (output_bfd, relocation + addend,
4540 input_bfd, input_section, contents,
4541 rel->r_offset);
4542 break;
4543 }
4544 else
4545 goto final_link_relocate;
4546 }
4547 break;
4548
4549 case R_SH_GOTOFFFUNCDESC:
4550 case R_SH_GOTOFFFUNCDESC20:
4551 /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
4552 executable and --export-dynamic. If such symbols get
4553 ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
4554 for them. */
4555 BFD_ASSERT (htab);
4556
4557 check_segment[0] = check_segment[1] = -1;
4558 relocation = 0;
4559 addend = rel->r_addend;
4560
4561 if (h && (h->root.type == bfd_link_hash_undefweak
4562 || !SYMBOL_FUNCDESC_LOCAL (info, h)))
4563 {
4564 _bfd_error_handler
4565 /* xgettext:c-format */
4566 (_("%pB(%pA+%#" PRIx64 "): "
4567 "%s relocation against external symbol \"%s\""),
4568 input_bfd, input_section, (uint64_t) rel->r_offset,
4569 howto->name, h->root.root.string);
4570 return FALSE;
4571 }
4572 else
4573 {
4574 bfd_vma offset;
4575
4576 /* Otherwise, we know we have a private function
4577 descriptor, so reference it directly. */
4578 if (h)
4579 {
4580 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4581 BFD_ASSERT (offset != MINUS_ONE);
4582 if ((offset & 1) == 0)
4583 {
4584 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4585 offset, NULL, 0))
4586 return FALSE;
4587 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4588 }
4589 }
4590 else
4591 {
4592 union gotref *local_funcdesc;
4593
4594 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4595 offset = local_funcdesc[r_symndx].offset;
4596 BFD_ASSERT (offset != MINUS_ONE);
4597 if ((offset & 1) == 0)
4598 {
4599 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4600 offset, sec,
4601 sym->st_value))
4602 return FALSE;
4603 local_funcdesc[r_symndx].offset |= 1;
4604 }
4605 }
4606
4607 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4608 }
4609
4610 relocation -= (htab->root.hgot->root.u.def.value
4611 + sgotplt->output_offset);
4612 #ifdef GOT_BIAS
4613 relocation -= GOT_BIAS;
4614 #endif
4615
4616 if (r_type == R_SH_GOTOFFFUNCDESC20)
4617 {
4618 r = install_movi20_field (output_bfd, relocation + addend,
4619 input_bfd, input_section, contents,
4620 rel->r_offset);
4621 break;
4622 }
4623 else
4624 goto final_link_relocate;
4625
4626 case R_SH_LOOP_START:
4627 {
4628 static bfd_vma start, end;
4629
4630 start = (relocation + rel->r_addend
4631 - (sec->output_section->vma + sec->output_offset));
4632 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4633 rel->r_offset, sec, start, end);
4634 break;
4635
4636 case R_SH_LOOP_END:
4637 end = (relocation + rel->r_addend
4638 - (sec->output_section->vma + sec->output_offset));
4639 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4640 rel->r_offset, sec, start, end);
4641 break;
4642 }
4643
4644 case R_SH_TLS_GD_32:
4645 case R_SH_TLS_IE_32:
4646 BFD_ASSERT (htab);
4647 check_segment[0] = check_segment[1] = -1;
4648 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
4649 got_type = GOT_UNKNOWN;
4650 if (h == NULL && local_got_offsets)
4651 got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
4652 else if (h != NULL)
4653 {
4654 got_type = sh_elf_hash_entry (h)->got_type;
4655 if (! bfd_link_pic (info)
4656 && (h->dynindx == -1
4657 || h->def_regular))
4658 r_type = R_SH_TLS_LE_32;
4659 }
4660
4661 if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
4662 r_type = R_SH_TLS_IE_32;
4663
4664 if (r_type == R_SH_TLS_LE_32)
4665 {
4666 bfd_vma offset;
4667 unsigned short insn;
4668
4669 if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
4670 {
4671 /* GD->LE transition:
4672 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4673 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4674 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4675 We change it into:
4676 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
4677 nop; nop; ...
4678 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
4679
4680 offset = rel->r_offset;
4681 if (offset < 16)
4682 {
4683 _bfd_error_handler
4684 /* xgettext:c-format */
4685 (_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64),
4686 input_bfd, input_section, (uint64_t) offset);
4687 return FALSE;
4688 }
4689
4690 /* Size of GD instructions is 16 or 18. */
4691 offset -= 16;
4692 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4693 if ((insn & 0xff00) == 0xc700)
4694 {
4695 BFD_ASSERT (offset >= 2);
4696 offset -= 2;
4697 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4698 }
4699
4700 if ((insn & 0xff00) != 0xd400)
4701 _bfd_error_handler
4702 /* xgettext:c-format */ /* The backslash is to prevent bogus trigraph detection. */
4703 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd4?\?)"),
4704 input_bfd, input_section, (uint64_t) offset, (int) insn);
4705
4706 insn = bfd_get_16 (input_bfd, contents + offset + 2);
4707
4708 if ((insn & 0xff00) != 0xc700)
4709 _bfd_error_handler
4710 /* xgettext:c-format */
4711 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xc7?\?)"),
4712 input_bfd, input_section, (uint64_t) offset, (int) insn);
4713
4714 insn = bfd_get_16 (input_bfd, contents + offset + 4);
4715 if ((insn & 0xff00) != 0xd100)
4716 _bfd_error_handler
4717 /* xgettext:c-format */
4718 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd1?\?)"),
4719 input_bfd, input_section, (uint64_t) offset, (int) insn);
4720
4721 insn = bfd_get_16 (input_bfd, contents + offset + 6);
4722 if (insn != 0x310c)
4723 _bfd_error_handler
4724 /* xgettext:c-format */
4725 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x310c)"),
4726 input_bfd, input_section, (uint64_t) offset, (int) insn);
4727
4728 insn = bfd_get_16 (input_bfd, contents + offset + 8);
4729 if (insn != 0x410b)
4730 _bfd_error_handler
4731 /* xgettext:c-format */
4732 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x410b)"),
4733 input_bfd, input_section, (uint64_t) offset, (int) insn);
4734
4735 insn = bfd_get_16 (input_bfd, contents + offset + 10);
4736 if (insn != 0x34cc)
4737 _bfd_error_handler
4738 /* xgettext:c-format */
4739 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x34cc)"),
4740 input_bfd, input_section, (uint64_t) offset, (int) insn);
4741
4742 bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
4743 bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
4744 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
4745 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4746 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4747 }
4748 else
4749 {
4750 int target;
4751
4752 /* IE->LE transition:
4753 mov.l 1f,r0;
4754 stc gbr,rN;
4755 mov.l @(r0,r12),rM;
4756 bra 2f;
4757 add ...;
4758 .align 2;
4759 1: x@GOTTPOFF;
4760 2:
4761 We change it into:
4762 mov.l .Ln,rM;
4763 stc gbr,rN;
4764 nop;
4765 ...;
4766 1: x@TPOFF;
4767 2:. */
4768
4769 offset = rel->r_offset;
4770 if (offset < 16)
4771 {
4772 _bfd_error_handler
4773 /* xgettext:c-format */
4774 (_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64),
4775 input_bfd, input_section, (uint64_t) offset);
4776 return FALSE;
4777 }
4778
4779 /* Size of IE instructions is 10 or 12. */
4780 offset -= 10;
4781 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4782 if ((insn & 0xf0ff) == 0x0012)
4783 {
4784 BFD_ASSERT (offset >= 2);
4785 offset -= 2;
4786 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4787 }
4788
4789 if ((insn & 0xff00) != 0xd000)
4790 _bfd_error_handler
4791 /* xgettext:c-format */
4792 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd0??: mov.l)"),
4793 input_bfd, input_section, (uint64_t) offset, (int) insn);
4794
4795 target = insn & 0x00ff;
4796
4797 insn = bfd_get_16 (input_bfd, contents + offset + 2);
4798 if ((insn & 0xf0ff) != 0x0012)
4799 _bfd_error_handler
4800 /* xgettext:c-format */
4801 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?12: stc)"),
4802 input_bfd, input_section, (uint64_t) (offset + 2), (int) insn);
4803
4804 insn = bfd_get_16 (input_bfd, contents + offset + 4);
4805 if ((insn & 0xf0ff) != 0x00ce)
4806 _bfd_error_handler
4807 /* xgettext:c-format */
4808 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?ce: mov.l)"),
4809 input_bfd, input_section, (uint64_t) (offset + 4), (int) insn);
4810
4811 insn = 0xd000 | (insn & 0x0f00) | target;
4812 bfd_put_16 (output_bfd, insn, contents + offset + 0);
4813 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
4814 }
4815
4816 bfd_put_32 (output_bfd, tpoff (info, relocation),
4817 contents + rel->r_offset);
4818 continue;
4819 }
4820
4821 if (sgot == NULL || sgotplt == NULL)
4822 abort ();
4823
4824 if (h != NULL)
4825 off = h->got.offset;
4826 else
4827 {
4828 if (local_got_offsets == NULL)
4829 abort ();
4830
4831 off = local_got_offsets[r_symndx];
4832 }
4833
4834 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
4835 if (r_type == R_SH_TLS_IE_32
4836 && ! htab->root.dynamic_sections_created)
4837 {
4838 off &= ~1;
4839 bfd_put_32 (output_bfd, tpoff (info, relocation),
4840 sgot->contents + off);
4841 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
4842 contents + rel->r_offset);
4843 continue;
4844 }
4845
4846 if ((off & 1) != 0)
4847 off &= ~1;
4848 else
4849 {
4850 Elf_Internal_Rela outrel;
4851 bfd_byte *loc;
4852 int dr_type, indx;
4853
4854 outrel.r_offset = (sgot->output_section->vma
4855 + sgot->output_offset + off);
4856
4857 if (h == NULL || h->dynindx == -1)
4858 indx = 0;
4859 else
4860 indx = h->dynindx;
4861
4862 dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
4863 R_SH_TLS_TPOFF32);
4864 if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
4865 outrel.r_addend = relocation - dtpoff_base (info);
4866 else
4867 outrel.r_addend = 0;
4868 outrel.r_info = ELF32_R_INFO (indx, dr_type);
4869 loc = srelgot->contents;
4870 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4871 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4872
4873 if (r_type == R_SH_TLS_GD_32)
4874 {
4875 if (indx == 0)
4876 {
4877 bfd_put_32 (output_bfd,
4878 relocation - dtpoff_base (info),
4879 sgot->contents + off + 4);
4880 }
4881 else
4882 {
4883 outrel.r_info = ELF32_R_INFO (indx,
4884 R_SH_TLS_DTPOFF32);
4885 outrel.r_offset += 4;
4886 outrel.r_addend = 0;
4887 srelgot->reloc_count++;
4888 loc += sizeof (Elf32_External_Rela);
4889 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4890 }
4891 }
4892
4893 if (h != NULL)
4894 h->got.offset |= 1;
4895 else
4896 local_got_offsets[r_symndx] |= 1;
4897 }
4898
4899 if (off >= (bfd_vma) -2)
4900 abort ();
4901
4902 if (r_type == (int) ELF32_R_TYPE (rel->r_info))
4903 relocation = sh_elf_got_offset (htab) + off;
4904 else
4905 {
4906 bfd_vma offset;
4907 unsigned short insn;
4908
4909 /* GD->IE transition:
4910 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4911 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4912 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4913 We change it into:
4914 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
4915 nop; nop; bra 3f; nop; .align 2;
4916 1: .long x@TPOFF; 2:...; 3:. */
4917
4918 offset = rel->r_offset;
4919 if (offset < 16)
4920 {
4921 _bfd_error_handler
4922 /* xgettext:c-format */
4923 (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64),
4924 input_bfd, input_section, (uint64_t) offset);
4925 return FALSE;
4926 }
4927
4928 /* Size of GD instructions is 16 or 18. */
4929 offset -= 16;
4930 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4931 if ((insn & 0xff00) == 0xc700)
4932 {
4933 BFD_ASSERT (offset >= 2);
4934 offset -= 2;
4935 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4936 }
4937
4938 BFD_ASSERT ((insn & 0xff00) == 0xd400);
4939
4940 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
4941 bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
4942
4943 insn = bfd_get_16 (input_bfd, contents + offset + 2);
4944 BFD_ASSERT ((insn & 0xff00) == 0xc700);
4945 insn = bfd_get_16 (input_bfd, contents + offset + 4);
4946 BFD_ASSERT ((insn & 0xff00) == 0xd100);
4947 insn = bfd_get_16 (input_bfd, contents + offset + 6);
4948 BFD_ASSERT (insn == 0x310c);
4949 insn = bfd_get_16 (input_bfd, contents + offset + 8);
4950 BFD_ASSERT (insn == 0x410b);
4951 insn = bfd_get_16 (input_bfd, contents + offset + 10);
4952 BFD_ASSERT (insn == 0x34cc);
4953
4954 bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
4955 bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
4956 bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
4957 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4958 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4959
4960 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
4961 contents + rel->r_offset);
4962
4963 continue;
4964 }
4965
4966 addend = rel->r_addend;
4967
4968 goto final_link_relocate;
4969
4970 case R_SH_TLS_LD_32:
4971 BFD_ASSERT (htab);
4972 check_segment[0] = check_segment[1] = -1;
4973 if (! bfd_link_pic (info))
4974 {
4975 bfd_vma offset;
4976 unsigned short insn;
4977
4978 /* LD->LE transition:
4979 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4980 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4981 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
4982 We change it into:
4983 stc gbr,r0; nop; nop; nop;
4984 nop; nop; bra 3f; ...; 3:. */
4985
4986 offset = rel->r_offset;
4987 if (offset < 16)
4988 {
4989 _bfd_error_handler
4990 /* xgettext:c-format */
4991 (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64),
4992 input_bfd, input_section, (uint64_t) offset);
4993 return FALSE;
4994 }
4995
4996 /* Size of LD instructions is 16 or 18. */
4997 offset -= 16;
4998 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4999 if ((insn & 0xff00) == 0xc700)
5000 {
5001 BFD_ASSERT (offset >= 2);
5002 offset -= 2;
5003 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5004 }
5005
5006 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5007 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5008 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5009 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5010 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5011 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5012 BFD_ASSERT (insn == 0x310c);
5013 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5014 BFD_ASSERT (insn == 0x410b);
5015 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5016 BFD_ASSERT (insn == 0x34cc);
5017
5018 bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
5019 bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
5020 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5021 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5022 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5023 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5024
5025 continue;
5026 }
5027
5028 if (sgot == NULL || sgotplt == NULL)
5029 abort ();
5030
5031 off = htab->tls_ldm_got.offset;
5032 if (off & 1)
5033 off &= ~1;
5034 else
5035 {
5036 Elf_Internal_Rela outrel;
5037 bfd_byte *loc;
5038
5039 outrel.r_offset = (sgot->output_section->vma
5040 + sgot->output_offset + off);
5041 outrel.r_addend = 0;
5042 outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
5043 loc = srelgot->contents;
5044 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
5045 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5046 htab->tls_ldm_got.offset |= 1;
5047 }
5048
5049 relocation = sh_elf_got_offset (htab) + off;
5050 addend = rel->r_addend;
5051
5052 goto final_link_relocate;
5053
5054 case R_SH_TLS_LDO_32:
5055 check_segment[0] = check_segment[1] = -1;
5056 if (! bfd_link_pic (info))
5057 relocation = tpoff (info, relocation);
5058 else
5059 relocation -= dtpoff_base (info);
5060
5061 addend = rel->r_addend;
5062 goto final_link_relocate;
5063
5064 case R_SH_TLS_LE_32:
5065 {
5066 int indx;
5067 Elf_Internal_Rela outrel;
5068 bfd_byte *loc;
5069
5070 check_segment[0] = check_segment[1] = -1;
5071
5072 if (!bfd_link_dll (info))
5073 {
5074 relocation = tpoff (info, relocation);
5075 addend = rel->r_addend;
5076 goto final_link_relocate;
5077 }
5078
5079 if (sreloc == NULL)
5080 {
5081 sreloc = _bfd_elf_get_dynamic_reloc_section
5082 (input_bfd, input_section, /*rela?*/ TRUE);
5083 if (sreloc == NULL)
5084 return FALSE;
5085 }
5086
5087 if (h == NULL || h->dynindx == -1)
5088 indx = 0;
5089 else
5090 indx = h->dynindx;
5091
5092 outrel.r_offset = (input_section->output_section->vma
5093 + input_section->output_offset
5094 + rel->r_offset);
5095 outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
5096 if (indx == 0)
5097 outrel.r_addend = relocation - dtpoff_base (info);
5098 else
5099 outrel.r_addend = 0;
5100
5101 loc = sreloc->contents;
5102 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5103 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5104 continue;
5105 }
5106 }
5107
5108 relocation_done:
5109 if (fdpic_p && check_segment[0] != (unsigned) -1
5110 && check_segment[0] != check_segment[1])
5111 {
5112 /* We don't want duplicate errors for undefined symbols. */
5113 if (!h || h->root.type != bfd_link_hash_undefined)
5114 {
5115 if (bfd_link_pic (info))
5116 {
5117 info->callbacks->einfo
5118 /* xgettext:c-format */
5119 (_("%X%C: relocation to \"%s\" references a different segment\n"),
5120 input_bfd, input_section, rel->r_offset, symname);
5121 return FALSE;
5122 }
5123 else
5124 info->callbacks->einfo
5125 /* xgettext:c-format */
5126 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5127 input_bfd, input_section, rel->r_offset, symname);
5128 }
5129
5130 elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC;
5131 }
5132
5133 if (r != bfd_reloc_ok)
5134 {
5135 switch (r)
5136 {
5137 default:
5138 case bfd_reloc_outofrange:
5139 abort ();
5140 case bfd_reloc_overflow:
5141 {
5142 const char *name;
5143
5144 if (h != NULL)
5145 name = NULL;
5146 else
5147 {
5148 name = (bfd_elf_string_from_elf_section
5149 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5150 if (name == NULL)
5151 return FALSE;
5152 if (*name == '\0')
5153 name = bfd_section_name (sec);
5154 }
5155 (*info->callbacks->reloc_overflow)
5156 (info, (h ? &h->root : NULL), name, howto->name,
5157 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
5158 }
5159 break;
5160 }
5161 }
5162 }
5163
5164 return TRUE;
5165 }
5166
5167 /* This is a version of bfd_generic_get_relocated_section_contents
5168 which uses sh_elf_relocate_section. */
5169
5170 static bfd_byte *
5171 sh_elf_get_relocated_section_contents (bfd *output_bfd,
5172 struct bfd_link_info *link_info,
5173 struct bfd_link_order *link_order,
5174 bfd_byte *data,
5175 bfd_boolean relocatable,
5176 asymbol **symbols)
5177 {
5178 Elf_Internal_Shdr *symtab_hdr;
5179 asection *input_section = link_order->u.indirect.section;
5180 bfd *input_bfd = input_section->owner;
5181 asection **sections = NULL;
5182 Elf_Internal_Rela *internal_relocs = NULL;
5183 Elf_Internal_Sym *isymbuf = NULL;
5184
5185 /* We only need to handle the case of relaxing, or of having a
5186 particular set of section contents, specially. */
5187 if (relocatable
5188 || elf_section_data (input_section)->this_hdr.contents == NULL)
5189 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5190 link_order, data,
5191 relocatable,
5192 symbols);
5193
5194 symtab_hdr = &elf_symtab_hdr (input_bfd);
5195
5196 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
5197 (size_t) input_section->size);
5198
5199 if ((input_section->flags & SEC_RELOC) != 0
5200 && input_section->reloc_count > 0)
5201 {
5202 asection **secpp;
5203 Elf_Internal_Sym *isym, *isymend;
5204 bfd_size_type amt;
5205
5206 internal_relocs = (_bfd_elf_link_read_relocs
5207 (input_bfd, input_section, NULL,
5208 (Elf_Internal_Rela *) NULL, FALSE));
5209 if (internal_relocs == NULL)
5210 goto error_return;
5211
5212 if (symtab_hdr->sh_info != 0)
5213 {
5214 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5215 if (isymbuf == NULL)
5216 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5217 symtab_hdr->sh_info, 0,
5218 NULL, NULL, NULL);
5219 if (isymbuf == NULL)
5220 goto error_return;
5221 }
5222
5223 amt = symtab_hdr->sh_info;
5224 amt *= sizeof (asection *);
5225 sections = (asection **) bfd_malloc (amt);
5226 if (sections == NULL && amt != 0)
5227 goto error_return;
5228
5229 isymend = isymbuf + symtab_hdr->sh_info;
5230 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
5231 {
5232 asection *isec;
5233
5234 if (isym->st_shndx == SHN_UNDEF)
5235 isec = bfd_und_section_ptr;
5236 else if (isym->st_shndx == SHN_ABS)
5237 isec = bfd_abs_section_ptr;
5238 else if (isym->st_shndx == SHN_COMMON)
5239 isec = bfd_com_section_ptr;
5240 else
5241 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
5242
5243 *secpp = isec;
5244 }
5245
5246 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5247 input_section, data, internal_relocs,
5248 isymbuf, sections))
5249 goto error_return;
5250
5251 free (sections);
5252 if (symtab_hdr->contents != (unsigned char *) isymbuf)
5253 free (isymbuf);
5254 if (elf_section_data (input_section)->relocs != internal_relocs)
5255 free (internal_relocs);
5256 }
5257
5258 return data;
5259
5260 error_return:
5261 free (sections);
5262 if (symtab_hdr->contents != (unsigned char *) isymbuf)
5263 free (isymbuf);
5264 if (elf_section_data (input_section)->relocs != internal_relocs)
5265 free (internal_relocs);
5266 return NULL;
5267 }
5268
5269 /* Return the base VMA address which should be subtracted from real addresses
5270 when resolving @dtpoff relocation.
5271 This is PT_TLS segment p_vaddr. */
5272
5273 static bfd_vma
5274 dtpoff_base (struct bfd_link_info *info)
5275 {
5276 /* If tls_sec is NULL, we should have signalled an error already. */
5277 if (elf_hash_table (info)->tls_sec == NULL)
5278 return 0;
5279 return elf_hash_table (info)->tls_sec->vma;
5280 }
5281
5282 /* Return the relocation value for R_SH_TLS_TPOFF32.. */
5283
5284 static bfd_vma
5285 tpoff (struct bfd_link_info *info, bfd_vma address)
5286 {
5287 /* If tls_sec is NULL, we should have signalled an error already. */
5288 if (elf_hash_table (info)->tls_sec == NULL)
5289 return 0;
5290 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5291 structure which has 2 pointer fields. */
5292 return (address - elf_hash_table (info)->tls_sec->vma
5293 + align_power ((bfd_vma) 8,
5294 elf_hash_table (info)->tls_sec->alignment_power));
5295 }
5296
5297 static asection *
5298 sh_elf_gc_mark_hook (asection *sec,
5299 struct bfd_link_info *info,
5300 Elf_Internal_Rela *rel,
5301 struct elf_link_hash_entry *h,
5302 Elf_Internal_Sym *sym)
5303 {
5304 if (h != NULL)
5305 switch (ELF32_R_TYPE (rel->r_info))
5306 {
5307 case R_SH_GNU_VTINHERIT:
5308 case R_SH_GNU_VTENTRY:
5309 return NULL;
5310 }
5311
5312 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5313 }
5314
5315 /* Copy the extra info we tack onto an elf_link_hash_entry. */
5316
5317 static void
5318 sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
5319 struct elf_link_hash_entry *dir,
5320 struct elf_link_hash_entry *ind)
5321 {
5322 struct elf_sh_link_hash_entry *edir, *eind;
5323
5324 edir = (struct elf_sh_link_hash_entry *) dir;
5325 eind = (struct elf_sh_link_hash_entry *) ind;
5326
5327 if (eind->dyn_relocs != NULL)
5328 {
5329 if (edir->dyn_relocs != NULL)
5330 {
5331 struct elf_dyn_relocs **pp;
5332 struct elf_dyn_relocs *p;
5333
5334 /* Add reloc counts against the indirect sym to the direct sym
5335 list. Merge any entries against the same section. */
5336 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
5337 {
5338 struct elf_dyn_relocs *q;
5339
5340 for (q = edir->dyn_relocs; q != NULL; q = q->next)
5341 if (q->sec == p->sec)
5342 {
5343 q->pc_count += p->pc_count;
5344 q->count += p->count;
5345 *pp = p->next;
5346 break;
5347 }
5348 if (q == NULL)
5349 pp = &p->next;
5350 }
5351 *pp = edir->dyn_relocs;
5352 }
5353
5354 edir->dyn_relocs = eind->dyn_relocs;
5355 eind->dyn_relocs = NULL;
5356 }
5357 edir->gotplt_refcount = eind->gotplt_refcount;
5358 eind->gotplt_refcount = 0;
5359 edir->funcdesc.refcount += eind->funcdesc.refcount;
5360 eind->funcdesc.refcount = 0;
5361 edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
5362 eind->abs_funcdesc_refcount = 0;
5363
5364 if (ind->root.type == bfd_link_hash_indirect
5365 && dir->got.refcount <= 0)
5366 {
5367 edir->got_type = eind->got_type;
5368 eind->got_type = GOT_UNKNOWN;
5369 }
5370
5371 if (ind->root.type != bfd_link_hash_indirect
5372 && dir->dynamic_adjusted)
5373 {
5374 /* If called to transfer flags for a weakdef during processing
5375 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
5376 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
5377 if (dir->versioned != versioned_hidden)
5378 dir->ref_dynamic |= ind->ref_dynamic;
5379 dir->ref_regular |= ind->ref_regular;
5380 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
5381 dir->needs_plt |= ind->needs_plt;
5382 }
5383 else
5384 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
5385 }
5386
5387 static int
5388 sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
5389 int is_local)
5390 {
5391 if (bfd_link_pic (info))
5392 return r_type;
5393
5394 switch (r_type)
5395 {
5396 case R_SH_TLS_GD_32:
5397 case R_SH_TLS_IE_32:
5398 if (is_local)
5399 return R_SH_TLS_LE_32;
5400 return R_SH_TLS_IE_32;
5401 case R_SH_TLS_LD_32:
5402 return R_SH_TLS_LE_32;
5403 }
5404
5405 return r_type;
5406 }
5407
5408 /* Look through the relocs for a section during the first phase.
5409 Since we don't do .gots or .plts, we just need to consider the
5410 virtual table relocs for gc. */
5411
5412 static bfd_boolean
5413 sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
5414 const Elf_Internal_Rela *relocs)
5415 {
5416 Elf_Internal_Shdr *symtab_hdr;
5417 struct elf_link_hash_entry **sym_hashes;
5418 struct elf_sh_link_hash_table *htab;
5419 const Elf_Internal_Rela *rel;
5420 const Elf_Internal_Rela *rel_end;
5421 asection *sreloc;
5422 unsigned int r_type;
5423 enum got_type got_type, old_got_type;
5424
5425 sreloc = NULL;
5426
5427 if (bfd_link_relocatable (info))
5428 return TRUE;
5429
5430 /* Don't do anything special with non-loaded, non-alloced sections.
5431 In particular, any relocs in such sections should not affect GOT
5432 and PLT reference counting (ie. we don't allow them to create GOT
5433 or PLT entries), there's no possibility or desire to optimize TLS
5434 relocs, and there's not much point in propagating relocs to shared
5435 libs that the dynamic linker won't relocate. */
5436 if ((sec->flags & SEC_ALLOC) == 0)
5437 return TRUE;
5438
5439 BFD_ASSERT (is_sh_elf (abfd));
5440
5441 symtab_hdr = &elf_symtab_hdr (abfd);
5442 sym_hashes = elf_sym_hashes (abfd);
5443
5444 htab = sh_elf_hash_table (info);
5445 if (htab == NULL)
5446 return FALSE;
5447
5448 rel_end = relocs + sec->reloc_count;
5449 for (rel = relocs; rel < rel_end; rel++)
5450 {
5451 struct elf_link_hash_entry *h;
5452 unsigned long r_symndx;
5453
5454 r_symndx = ELF32_R_SYM (rel->r_info);
5455 r_type = ELF32_R_TYPE (rel->r_info);
5456
5457 if (r_symndx < symtab_hdr->sh_info)
5458 h = NULL;
5459 else
5460 {
5461 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5462 while (h->root.type == bfd_link_hash_indirect
5463 || h->root.type == bfd_link_hash_warning)
5464 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5465 }
5466
5467 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
5468 if (! bfd_link_pic (info)
5469 && r_type == R_SH_TLS_IE_32
5470 && h != NULL
5471 && h->root.type != bfd_link_hash_undefined
5472 && h->root.type != bfd_link_hash_undefweak
5473 && (h->dynindx == -1
5474 || h->def_regular))
5475 r_type = R_SH_TLS_LE_32;
5476
5477 if (htab->fdpic_p)
5478 switch (r_type)
5479 {
5480 case R_SH_GOTOFFFUNCDESC:
5481 case R_SH_GOTOFFFUNCDESC20:
5482 case R_SH_FUNCDESC:
5483 case R_SH_GOTFUNCDESC:
5484 case R_SH_GOTFUNCDESC20:
5485 if (h != NULL)
5486 {
5487 if (h->dynindx == -1)
5488 switch (ELF_ST_VISIBILITY (h->other))
5489 {
5490 case STV_INTERNAL:
5491 case STV_HIDDEN:
5492 break;
5493 default:
5494 bfd_elf_link_record_dynamic_symbol (info, h);
5495 break;
5496 }
5497 }
5498 break;
5499 }
5500
5501 /* Some relocs require a global offset table. */
5502 if (htab->root.sgot == NULL)
5503 {
5504 switch (r_type)
5505 {
5506 case R_SH_DIR32:
5507 /* This may require an rofixup. */
5508 if (!htab->fdpic_p)
5509 break;
5510 /* Fall through. */
5511 case R_SH_GOTPLT32:
5512 case R_SH_GOT32:
5513 case R_SH_GOT20:
5514 case R_SH_GOTOFF:
5515 case R_SH_GOTOFF20:
5516 case R_SH_FUNCDESC:
5517 case R_SH_GOTFUNCDESC:
5518 case R_SH_GOTFUNCDESC20:
5519 case R_SH_GOTOFFFUNCDESC:
5520 case R_SH_GOTOFFFUNCDESC20:
5521 case R_SH_GOTPC:
5522 case R_SH_TLS_GD_32:
5523 case R_SH_TLS_LD_32:
5524 case R_SH_TLS_IE_32:
5525 if (htab->root.dynobj == NULL)
5526 htab->root.dynobj = abfd;
5527 if (!create_got_section (htab->root.dynobj, info))
5528 return FALSE;
5529 break;
5530
5531 default:
5532 break;
5533 }
5534 }
5535
5536 switch (r_type)
5537 {
5538 /* This relocation describes the C++ object vtable hierarchy.
5539 Reconstruct it for later use during GC. */
5540 case R_SH_GNU_VTINHERIT:
5541 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
5542 return FALSE;
5543 break;
5544
5545 /* This relocation describes which C++ vtable entries are actually
5546 used. Record for later use during GC. */
5547 case R_SH_GNU_VTENTRY:
5548 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
5549 return FALSE;
5550 break;
5551
5552 case R_SH_TLS_IE_32:
5553 if (bfd_link_pic (info))
5554 info->flags |= DF_STATIC_TLS;
5555
5556 /* FALLTHROUGH */
5557 force_got:
5558 case R_SH_TLS_GD_32:
5559 case R_SH_GOT32:
5560 case R_SH_GOT20:
5561 case R_SH_GOTFUNCDESC:
5562 case R_SH_GOTFUNCDESC20:
5563 switch (r_type)
5564 {
5565 default:
5566 got_type = GOT_NORMAL;
5567 break;
5568 case R_SH_TLS_GD_32:
5569 got_type = GOT_TLS_GD;
5570 break;
5571 case R_SH_TLS_IE_32:
5572 got_type = GOT_TLS_IE;
5573 break;
5574 case R_SH_GOTFUNCDESC:
5575 case R_SH_GOTFUNCDESC20:
5576 got_type = GOT_FUNCDESC;
5577 break;
5578 }
5579
5580 if (h != NULL)
5581 {
5582 h->got.refcount += 1;
5583 old_got_type = sh_elf_hash_entry (h)->got_type;
5584 }
5585 else
5586 {
5587 bfd_signed_vma *local_got_refcounts;
5588
5589 /* This is a global offset table entry for a local
5590 symbol. */
5591 local_got_refcounts = elf_local_got_refcounts (abfd);
5592 if (local_got_refcounts == NULL)
5593 {
5594 bfd_size_type size;
5595
5596 size = symtab_hdr->sh_info;
5597 size *= sizeof (bfd_signed_vma);
5598 size += symtab_hdr->sh_info;
5599 local_got_refcounts = ((bfd_signed_vma *)
5600 bfd_zalloc (abfd, size));
5601 if (local_got_refcounts == NULL)
5602 return FALSE;
5603 elf_local_got_refcounts (abfd) = local_got_refcounts;
5604 sh_elf_local_got_type (abfd)
5605 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
5606 }
5607 local_got_refcounts[r_symndx] += 1;
5608 old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
5609 }
5610
5611 /* If a TLS symbol is accessed using IE at least once,
5612 there is no point to use dynamic model for it. */
5613 if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
5614 && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
5615 {
5616 if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
5617 got_type = GOT_TLS_IE;
5618 else
5619 {
5620 if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
5621 && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
5622 _bfd_error_handler
5623 /* xgettext:c-format */
5624 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
5625 abfd, h->root.root.string);
5626 else if (old_got_type == GOT_FUNCDESC
5627 || got_type == GOT_FUNCDESC)
5628 _bfd_error_handler
5629 /* xgettext:c-format */
5630 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
5631 abfd, h->root.root.string);
5632 else
5633 _bfd_error_handler
5634 /* xgettext:c-format */
5635 (_("%pB: `%s' accessed both as normal and thread local symbol"),
5636 abfd, h->root.root.string);
5637 return FALSE;
5638 }
5639 }
5640
5641 if (old_got_type != got_type)
5642 {
5643 if (h != NULL)
5644 sh_elf_hash_entry (h)->got_type = got_type;
5645 else
5646 sh_elf_local_got_type (abfd) [r_symndx] = got_type;
5647 }
5648
5649 break;
5650
5651 case R_SH_TLS_LD_32:
5652 sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
5653 break;
5654
5655 case R_SH_FUNCDESC:
5656 case R_SH_GOTOFFFUNCDESC:
5657 case R_SH_GOTOFFFUNCDESC20:
5658 if (rel->r_addend)
5659 {
5660 _bfd_error_handler
5661 (_("%pB: Function descriptor relocation with non-zero addend"),
5662 abfd);
5663 return FALSE;
5664 }
5665
5666 if (h == NULL)
5667 {
5668 union gotref *local_funcdesc;
5669
5670 /* We need a function descriptor for a local symbol. */
5671 local_funcdesc = sh_elf_local_funcdesc (abfd);
5672 if (local_funcdesc == NULL)
5673 {
5674 bfd_size_type size;
5675
5676 size = symtab_hdr->sh_info * sizeof (union gotref);
5677 local_funcdesc = (union gotref *) bfd_zalloc (abfd, size);
5678 if (local_funcdesc == NULL)
5679 return FALSE;
5680 sh_elf_local_funcdesc (abfd) = local_funcdesc;
5681 }
5682 local_funcdesc[r_symndx].refcount += 1;
5683
5684 if (r_type == R_SH_FUNCDESC)
5685 {
5686 if (!bfd_link_pic (info))
5687 htab->srofixup->size += 4;
5688 else
5689 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
5690 }
5691 }
5692 else
5693 {
5694 sh_elf_hash_entry (h)->funcdesc.refcount++;
5695 if (r_type == R_SH_FUNCDESC)
5696 sh_elf_hash_entry (h)->abs_funcdesc_refcount++;
5697
5698 /* If there is a function descriptor reference, then
5699 there should not be any non-FDPIC references. */
5700 old_got_type = sh_elf_hash_entry (h)->got_type;
5701 if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN)
5702 {
5703 if (old_got_type == GOT_NORMAL)
5704 _bfd_error_handler
5705 /* xgettext:c-format */
5706 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
5707 abfd, h->root.root.string);
5708 else
5709 _bfd_error_handler
5710 /* xgettext:c-format */
5711 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
5712 abfd, h->root.root.string);
5713 }
5714 }
5715 break;
5716
5717 case R_SH_GOTPLT32:
5718 /* If this is a local symbol, we resolve it directly without
5719 creating a procedure linkage table entry. */
5720
5721 if (h == NULL
5722 || h->forced_local
5723 || ! bfd_link_pic (info)
5724 || info->symbolic
5725 || h->dynindx == -1)
5726 goto force_got;
5727
5728 h->needs_plt = 1;
5729 h->plt.refcount += 1;
5730 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
5731
5732 break;
5733
5734 case R_SH_PLT32:
5735 /* This symbol requires a procedure linkage table entry. We
5736 actually build the entry in adjust_dynamic_symbol,
5737 because this might be a case of linking PIC code which is
5738 never referenced by a dynamic object, in which case we
5739 don't need to generate a procedure linkage table entry
5740 after all. */
5741
5742 /* If this is a local symbol, we resolve it directly without
5743 creating a procedure linkage table entry. */
5744 if (h == NULL)
5745 continue;
5746
5747 if (h->forced_local)
5748 break;
5749
5750 h->needs_plt = 1;
5751 h->plt.refcount += 1;
5752 break;
5753
5754 case R_SH_DIR32:
5755 case R_SH_REL32:
5756 if (h != NULL && ! bfd_link_pic (info))
5757 {
5758 h->non_got_ref = 1;
5759 h->plt.refcount += 1;
5760 }
5761
5762 /* If we are creating a shared library, and this is a reloc
5763 against a global symbol, or a non PC relative reloc
5764 against a local symbol, then we need to copy the reloc
5765 into the shared library. However, if we are linking with
5766 -Bsymbolic, we do not need to copy a reloc against a
5767 global symbol which is defined in an object we are
5768 including in the link (i.e., DEF_REGULAR is set). At
5769 this point we have not seen all the input files, so it is
5770 possible that DEF_REGULAR is not set now but will be set
5771 later (it is never cleared). We account for that
5772 possibility below by storing information in the
5773 dyn_relocs field of the hash table entry. A similar
5774 situation occurs when creating shared libraries and symbol
5775 visibility changes render the symbol local.
5776
5777 If on the other hand, we are creating an executable, we
5778 may need to keep relocations for symbols satisfied by a
5779 dynamic library if we manage to avoid copy relocs for the
5780 symbol. */
5781 if ((bfd_link_pic (info)
5782 && (sec->flags & SEC_ALLOC) != 0
5783 && (r_type != R_SH_REL32
5784 || (h != NULL
5785 && (! info->symbolic
5786 || h->root.type == bfd_link_hash_defweak
5787 || !h->def_regular))))
5788 || (! bfd_link_pic (info)
5789 && (sec->flags & SEC_ALLOC) != 0
5790 && h != NULL
5791 && (h->root.type == bfd_link_hash_defweak
5792 || !h->def_regular)))
5793 {
5794 struct elf_dyn_relocs *p;
5795 struct elf_dyn_relocs **head;
5796
5797 if (htab->root.dynobj == NULL)
5798 htab->root.dynobj = abfd;
5799
5800 /* When creating a shared object, we must copy these
5801 reloc types into the output file. We create a reloc
5802 section in dynobj and make room for this reloc. */
5803 if (sreloc == NULL)
5804 {
5805 sreloc = _bfd_elf_make_dynamic_reloc_section
5806 (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
5807
5808 if (sreloc == NULL)
5809 return FALSE;
5810 }
5811
5812 /* If this is a global symbol, we count the number of
5813 relocations we need for this symbol. */
5814 if (h != NULL)
5815 head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
5816 else
5817 {
5818 /* Track dynamic relocs needed for local syms too. */
5819 asection *s;
5820 void *vpp;
5821 Elf_Internal_Sym *isym;
5822
5823 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5824 abfd, r_symndx);
5825 if (isym == NULL)
5826 return FALSE;
5827
5828 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5829 if (s == NULL)
5830 s = sec;
5831
5832 vpp = &elf_section_data (s)->local_dynrel;
5833 head = (struct elf_dyn_relocs **) vpp;
5834 }
5835
5836 p = *head;
5837 if (p == NULL || p->sec != sec)
5838 {
5839 size_t amt = sizeof (*p);
5840 p = bfd_alloc (htab->root.dynobj, amt);
5841 if (p == NULL)
5842 return FALSE;
5843 p->next = *head;
5844 *head = p;
5845 p->sec = sec;
5846 p->count = 0;
5847 p->pc_count = 0;
5848 }
5849
5850 p->count += 1;
5851 if (r_type == R_SH_REL32)
5852 p->pc_count += 1;
5853 }
5854
5855 /* Allocate the fixup regardless of whether we need a relocation.
5856 If we end up generating the relocation, we'll unallocate the
5857 fixup. */
5858 if (htab->fdpic_p && !bfd_link_pic (info)
5859 && r_type == R_SH_DIR32
5860 && (sec->flags & SEC_ALLOC) != 0)
5861 htab->srofixup->size += 4;
5862 break;
5863
5864 case R_SH_TLS_LE_32:
5865 if (bfd_link_dll (info))
5866 {
5867 _bfd_error_handler
5868 (_("%pB: TLS local exec code cannot be linked into shared objects"),
5869 abfd);
5870 return FALSE;
5871 }
5872
5873 break;
5874
5875 case R_SH_TLS_LDO_32:
5876 /* Nothing to do. */
5877 break;
5878
5879 default:
5880 break;
5881 }
5882 }
5883
5884 return TRUE;
5885 }
5886
5887 #ifndef sh_elf_set_mach_from_flags
5888 static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
5889
5890 static bfd_boolean
5891 sh_elf_set_mach_from_flags (bfd *abfd)
5892 {
5893 flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
5894
5895 if (flags >= ARRAY_SIZE (sh_ef_bfd_table))
5896 return FALSE;
5897
5898 if (sh_ef_bfd_table[flags] == 0)
5899 return FALSE;
5900
5901 bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
5902
5903 return TRUE;
5904 }
5905
5906
5907 /* Reverse table lookup for sh_ef_bfd_table[].
5908 Given a bfd MACH value from archures.c
5909 return the equivalent ELF flags from the table.
5910 Return -1 if no match is found. */
5911
5912 int
5913 sh_elf_get_flags_from_mach (unsigned long mach)
5914 {
5915 int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
5916
5917 for (; i>0; i--)
5918 if (sh_ef_bfd_table[i] == mach)
5919 return i;
5920
5921 /* shouldn't get here */
5922 BFD_FAIL();
5923
5924 return -1;
5925 }
5926 #endif /* not sh_elf_set_mach_from_flags */
5927
5928 #ifndef sh_elf_copy_private_data
5929 /* Copy backend specific data from one object module to another */
5930
5931 static bfd_boolean
5932 sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
5933 {
5934 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
5935 return TRUE;
5936
5937 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
5938 return FALSE;
5939
5940 return sh_elf_set_mach_from_flags (obfd);
5941 }
5942 #endif /* not sh_elf_copy_private_data */
5943
5944 #ifndef sh_elf_merge_private_data
5945
5946 /* This function returns the ELF architecture number that
5947 corresponds to the given arch_sh* flags. */
5948
5949 int
5950 sh_find_elf_flags (unsigned int arch_set)
5951 {
5952 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
5953 unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
5954
5955 return sh_elf_get_flags_from_mach (bfd_mach);
5956 }
5957
5958 /* Merge the architecture type of two BFD files, such that the
5959 resultant architecture supports all the features required
5960 by the two input BFDs.
5961 If the input BFDs are multually incompatible - i.e. one uses
5962 DSP while the other uses FPU - or there is no known architecture
5963 that fits the requirements then an error is emitted. */
5964
5965 static bfd_boolean
5966 sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info)
5967 {
5968 bfd *obfd = info->output_bfd;
5969 unsigned int old_arch, new_arch, merged_arch;
5970
5971 if (! _bfd_generic_verify_endian_match (ibfd, info))
5972 return FALSE;
5973
5974 old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd));
5975 new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd));
5976
5977 merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch);
5978
5979 if (!SH_VALID_CO_ARCH_SET (merged_arch))
5980 {
5981 _bfd_error_handler
5982 /* xgettext:c-format */
5983 (_("%pB: uses %s instructions while previous modules "
5984 "use %s instructions"),
5985 ibfd,
5986 SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point",
5987 SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp");
5988 bfd_set_error (bfd_error_bad_value);
5989 return FALSE;
5990 }
5991 else if (!SH_VALID_ARCH_SET (merged_arch))
5992 {
5993 _bfd_error_handler
5994 /* xgettext:c-format */
5995 (_("internal error: merge of architecture '%s' with "
5996 "architecture '%s' produced unknown architecture"),
5997 bfd_printable_name (obfd),
5998 bfd_printable_name (ibfd));
5999 bfd_set_error (bfd_error_bad_value);
6000 return FALSE;
6001 }
6002
6003 bfd_default_set_arch_mach (obfd, bfd_arch_sh,
6004 sh_get_bfd_mach_from_arch_set (merged_arch));
6005
6006 return TRUE;
6007 }
6008
6009 /* This routine initialises the elf flags when required and
6010 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
6011
6012 static bfd_boolean
6013 sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
6014 {
6015 bfd *obfd = info->output_bfd;
6016
6017 /* FIXME: What should be checked when linking shared libraries? */
6018 if ((ibfd->flags & DYNAMIC) != 0)
6019 return TRUE;
6020
6021 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
6022 return TRUE;
6023
6024 if (! elf_flags_init (obfd))
6025 {
6026 /* This happens when ld starts out with a 'blank' output file. */
6027 elf_flags_init (obfd) = TRUE;
6028 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6029 sh_elf_set_mach_from_flags (obfd);
6030 if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
6031 elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC;
6032 }
6033
6034 if (! sh_merge_bfd_arch (ibfd, info))
6035 {
6036 _bfd_error_handler (_("%pB: uses instructions which are incompatible "
6037 "with instructions used in previous modules"),
6038 ibfd);
6039 bfd_set_error (bfd_error_bad_value);
6040 return FALSE;
6041 }
6042
6043 elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
6044 elf_elfheader (obfd)->e_flags |=
6045 sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
6046
6047 if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
6048 {
6049 _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"),
6050 ibfd);
6051 bfd_set_error (bfd_error_bad_value);
6052 return FALSE;
6053 }
6054
6055 return TRUE;
6056 }
6057 #endif /* not sh_elf_merge_private_data */
6058
6059 /* Override the generic function because we need to store sh_elf_obj_tdata
6060 as the specific tdata. We set also the machine architecture from flags
6061 here. */
6062
6063 static bfd_boolean
6064 sh_elf_object_p (bfd *abfd)
6065 {
6066 if (! sh_elf_set_mach_from_flags (abfd))
6067 return FALSE;
6068
6069 return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0)
6070 == fdpic_object_p (abfd));
6071 }
6072
6073 /* Finish up dynamic symbol handling. We set the contents of various
6074 dynamic sections here. */
6075
6076 static bfd_boolean
6077 sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
6078 struct elf_link_hash_entry *h,
6079 Elf_Internal_Sym *sym)
6080 {
6081 struct elf_sh_link_hash_table *htab;
6082
6083 htab = sh_elf_hash_table (info);
6084 if (htab == NULL)
6085 return FALSE;
6086
6087 if (h->plt.offset != (bfd_vma) -1)
6088 {
6089 asection *splt;
6090 asection *sgotplt;
6091 asection *srelplt;
6092
6093 bfd_vma plt_index;
6094 bfd_vma got_offset;
6095 Elf_Internal_Rela rel;
6096 bfd_byte *loc;
6097 const struct elf_sh_plt_info *plt_info;
6098
6099 /* This symbol has an entry in the procedure linkage table. Set
6100 it up. */
6101
6102 BFD_ASSERT (h->dynindx != -1);
6103
6104 splt = htab->root.splt;
6105 sgotplt = htab->root.sgotplt;
6106 srelplt = htab->root.srelplt;
6107 BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
6108
6109 /* Get the index in the procedure linkage table which
6110 corresponds to this symbol. This is the index of this symbol
6111 in all the symbols for which we are making plt entries. The
6112 first entry in the procedure linkage table is reserved. */
6113 plt_index = get_plt_index (htab->plt_info, h->plt.offset);
6114
6115 plt_info = htab->plt_info;
6116 if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT)
6117 plt_info = plt_info->short_plt;
6118
6119 /* Get the offset into the .got table of the entry that
6120 corresponds to this function. */
6121 if (htab->fdpic_p)
6122 /* The offset must be relative to the GOT symbol, twelve bytes
6123 before the end of .got.plt. Each descriptor is eight
6124 bytes. */
6125 got_offset = plt_index * 8 + 12 - sgotplt->size;
6126 else
6127 /* Each .got entry is 4 bytes. The first three are
6128 reserved. */
6129 got_offset = (plt_index + 3) * 4;
6130
6131 #ifdef GOT_BIAS
6132 if (bfd_link_pic (info))
6133 got_offset -= GOT_BIAS;
6134 #endif
6135
6136 /* Fill in the entry in the procedure linkage table. */
6137 memcpy (splt->contents + h->plt.offset,
6138 plt_info->symbol_entry,
6139 plt_info->symbol_entry_size);
6140
6141 if (bfd_link_pic (info) || htab->fdpic_p)
6142 {
6143 if (plt_info->symbol_fields.got20)
6144 {
6145 bfd_reloc_status_type r;
6146 r = install_movi20_field (output_bfd, got_offset,
6147 splt->owner, splt, splt->contents,
6148 h->plt.offset
6149 + plt_info->symbol_fields.got_entry);
6150 BFD_ASSERT (r == bfd_reloc_ok);
6151 }
6152 else
6153 install_plt_field (output_bfd, FALSE, got_offset,
6154 (splt->contents
6155 + h->plt.offset
6156 + plt_info->symbol_fields.got_entry));
6157 }
6158 else
6159 {
6160 BFD_ASSERT (!plt_info->symbol_fields.got20);
6161
6162 install_plt_field (output_bfd, FALSE,
6163 (sgotplt->output_section->vma
6164 + sgotplt->output_offset
6165 + got_offset),
6166 (splt->contents
6167 + h->plt.offset
6168 + plt_info->symbol_fields.got_entry));
6169 if (htab->vxworks_p)
6170 {
6171 unsigned int reachable_plts, plts_per_4k;
6172 int distance;
6173
6174 /* Divide the PLT into groups. The first group contains
6175 REACHABLE_PLTS entries and the other groups contain
6176 PLTS_PER_4K entries. Entries in the first group can
6177 branch directly to .plt; those in later groups branch
6178 to the last element of the previous group. */
6179 /* ??? It would be better to create multiple copies of
6180 the common resolver stub. */
6181 reachable_plts = ((4096
6182 - plt_info->plt0_entry_size
6183 - (plt_info->symbol_fields.plt + 4))
6184 / plt_info->symbol_entry_size) + 1;
6185 plts_per_4k = (4096 / plt_info->symbol_entry_size);
6186 if (plt_index < reachable_plts)
6187 distance = -(h->plt.offset
6188 + plt_info->symbol_fields.plt);
6189 else
6190 distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
6191 * plt_info->symbol_entry_size);
6192
6193 /* Install the 'bra' with this offset. */
6194 bfd_put_16 (output_bfd,
6195 0xa000 | (0x0fff & ((distance - 4) / 2)),
6196 (splt->contents
6197 + h->plt.offset
6198 + plt_info->symbol_fields.plt));
6199 }
6200 else
6201 install_plt_field (output_bfd, TRUE,
6202 splt->output_section->vma + splt->output_offset,
6203 (splt->contents
6204 + h->plt.offset
6205 + plt_info->symbol_fields.plt));
6206 }
6207
6208 /* Make got_offset relative to the start of .got.plt. */
6209 #ifdef GOT_BIAS
6210 if (bfd_link_pic (info))
6211 got_offset += GOT_BIAS;
6212 #endif
6213 if (htab->fdpic_p)
6214 got_offset = plt_index * 8;
6215
6216 if (plt_info->symbol_fields.reloc_offset != MINUS_ONE)
6217 install_plt_field (output_bfd, FALSE,
6218 plt_index * sizeof (Elf32_External_Rela),
6219 (splt->contents
6220 + h->plt.offset
6221 + plt_info->symbol_fields.reloc_offset));
6222
6223 /* Fill in the entry in the global offset table. */
6224 bfd_put_32 (output_bfd,
6225 (splt->output_section->vma
6226 + splt->output_offset
6227 + h->plt.offset
6228 + plt_info->symbol_resolve_offset),
6229 sgotplt->contents + got_offset);
6230 if (htab->fdpic_p)
6231 bfd_put_32 (output_bfd,
6232 sh_elf_osec_to_segment (output_bfd, splt->output_section),
6233 sgotplt->contents + got_offset + 4);
6234
6235 /* Fill in the entry in the .rela.plt section. */
6236 rel.r_offset = (sgotplt->output_section->vma
6237 + sgotplt->output_offset
6238 + got_offset);
6239 if (htab->fdpic_p)
6240 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE);
6241 else
6242 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
6243 rel.r_addend = 0;
6244 #ifdef GOT_BIAS
6245 rel.r_addend = GOT_BIAS;
6246 #endif
6247 loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
6248 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6249
6250 if (htab->vxworks_p && !bfd_link_pic (info))
6251 {
6252 /* Create the .rela.plt.unloaded relocations for this PLT entry.
6253 Begin by pointing LOC to the first such relocation. */
6254 loc = (htab->srelplt2->contents
6255 + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela));
6256
6257 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6258 for the PLT entry's pointer to the .got.plt entry. */
6259 rel.r_offset = (splt->output_section->vma
6260 + splt->output_offset
6261 + h->plt.offset
6262 + plt_info->symbol_fields.got_entry);
6263 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6264 rel.r_addend = got_offset;
6265 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6266 loc += sizeof (Elf32_External_Rela);
6267
6268 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6269 the .got.plt entry, which initially points to .plt. */
6270 rel.r_offset = (sgotplt->output_section->vma
6271 + sgotplt->output_offset
6272 + got_offset);
6273 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32);
6274 rel.r_addend = 0;
6275 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6276 }
6277
6278 if (!h->def_regular)
6279 {
6280 /* Mark the symbol as undefined, rather than as defined in
6281 the .plt section. Leave the value alone. */
6282 sym->st_shndx = SHN_UNDEF;
6283 }
6284 }
6285
6286 if (h->got.offset != (bfd_vma) -1
6287 && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD
6288 && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE
6289 && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC)
6290 {
6291 asection *sgot;
6292 asection *srelgot;
6293 Elf_Internal_Rela rel;
6294 bfd_byte *loc;
6295
6296 /* This symbol has an entry in the global offset table. Set it
6297 up. */
6298
6299 sgot = htab->root.sgot;
6300 srelgot = htab->root.srelgot;
6301 BFD_ASSERT (sgot != NULL && srelgot != NULL);
6302
6303 rel.r_offset = (sgot->output_section->vma
6304 + sgot->output_offset
6305 + (h->got.offset &~ (bfd_vma) 1));
6306
6307 /* If this is a static link, or it is a -Bsymbolic link and the
6308 symbol is defined locally or was forced to be local because
6309 of a version file, we just want to emit a RELATIVE reloc.
6310 The entry in the global offset table will already have been
6311 initialized in the relocate_section function. */
6312 if (bfd_link_pic (info)
6313 && SYMBOL_REFERENCES_LOCAL (info, h))
6314 {
6315 if (htab->fdpic_p)
6316 {
6317 asection *sec = h->root.u.def.section;
6318 int dynindx
6319 = elf_section_data (sec->output_section)->dynindx;
6320
6321 rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
6322 rel.r_addend = (h->root.u.def.value
6323 + h->root.u.def.section->output_offset);
6324 }
6325 else
6326 {
6327 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6328 rel.r_addend = (h->root.u.def.value
6329 + h->root.u.def.section->output_section->vma
6330 + h->root.u.def.section->output_offset);
6331 }
6332 }
6333 else
6334 {
6335 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
6336 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6337 rel.r_addend = 0;
6338 }
6339
6340 loc = srelgot->contents;
6341 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
6342 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6343 }
6344
6345 if (h->needs_copy)
6346 {
6347 asection *s;
6348 Elf_Internal_Rela rel;
6349 bfd_byte *loc;
6350
6351 /* This symbol needs a copy reloc. Set it up. */
6352
6353 BFD_ASSERT (h->dynindx != -1
6354 && (h->root.type == bfd_link_hash_defined
6355 || h->root.type == bfd_link_hash_defweak));
6356
6357 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
6358 BFD_ASSERT (s != NULL);
6359
6360 rel.r_offset = (h->root.u.def.value
6361 + h->root.u.def.section->output_section->vma
6362 + h->root.u.def.section->output_offset);
6363 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
6364 rel.r_addend = 0;
6365 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
6366 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6367 }
6368
6369 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
6370 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
6371 ".got" section. */
6372 if (h == htab->root.hdynamic
6373 || (!htab->vxworks_p && h == htab->root.hgot))
6374 sym->st_shndx = SHN_ABS;
6375
6376 return TRUE;
6377 }
6378
6379 /* Finish up the dynamic sections. */
6380
6381 static bfd_boolean
6382 sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
6383 {
6384 struct elf_sh_link_hash_table *htab;
6385 asection *sgotplt;
6386 asection *sdyn;
6387
6388 htab = sh_elf_hash_table (info);
6389 if (htab == NULL)
6390 return FALSE;
6391
6392 sgotplt = htab->root.sgotplt;
6393 sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
6394
6395 if (htab->root.dynamic_sections_created)
6396 {
6397 asection *splt;
6398 Elf32_External_Dyn *dyncon, *dynconend;
6399
6400 BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
6401
6402 dyncon = (Elf32_External_Dyn *) sdyn->contents;
6403 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6404 for (; dyncon < dynconend; dyncon++)
6405 {
6406 Elf_Internal_Dyn dyn;
6407 asection *s;
6408
6409 bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
6410
6411 switch (dyn.d_tag)
6412 {
6413 default:
6414 if (htab->vxworks_p
6415 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
6416 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6417 break;
6418
6419 case DT_PLTGOT:
6420 BFD_ASSERT (htab->root.hgot != NULL);
6421 s = htab->root.hgot->root.u.def.section;
6422 dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value
6423 + s->output_section->vma + s->output_offset;
6424 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6425 break;
6426
6427 case DT_JMPREL:
6428 s = htab->root.srelplt->output_section;
6429 BFD_ASSERT (s != NULL);
6430 dyn.d_un.d_ptr = s->vma;
6431 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6432 break;
6433
6434 case DT_PLTRELSZ:
6435 s = htab->root.srelplt->output_section;
6436 BFD_ASSERT (s != NULL);
6437 dyn.d_un.d_val = s->size;
6438 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6439 break;
6440 }
6441 }
6442
6443 /* Fill in the first entry in the procedure linkage table. */
6444 splt = htab->root.splt;
6445 if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
6446 {
6447 unsigned int i;
6448
6449 memcpy (splt->contents,
6450 htab->plt_info->plt0_entry,
6451 htab->plt_info->plt0_entry_size);
6452 for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++)
6453 if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE)
6454 install_plt_field (output_bfd, FALSE,
6455 (sgotplt->output_section->vma
6456 + sgotplt->output_offset
6457 + (i * 4)),
6458 (splt->contents
6459 + htab->plt_info->plt0_got_fields[i]));
6460
6461 if (htab->vxworks_p)
6462 {
6463 /* Finalize the .rela.plt.unloaded contents. */
6464 Elf_Internal_Rela rel;
6465 bfd_byte *loc;
6466
6467 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
6468 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
6469 loc = htab->srelplt2->contents;
6470 rel.r_offset = (splt->output_section->vma
6471 + splt->output_offset
6472 + htab->plt_info->plt0_got_fields[2]);
6473 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6474 rel.r_addend = 8;
6475 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6476 loc += sizeof (Elf32_External_Rela);
6477
6478 /* Fix up the remaining .rela.plt.unloaded relocations.
6479 They may have the wrong symbol index for _G_O_T_ or
6480 _P_L_T_ depending on the order in which symbols were
6481 output. */
6482 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
6483 {
6484 /* The PLT entry's pointer to the .got.plt slot. */
6485 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6486 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx,
6487 R_SH_DIR32);
6488 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6489 loc += sizeof (Elf32_External_Rela);
6490
6491 /* The .got.plt slot's pointer to .plt. */
6492 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6493 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx,
6494 R_SH_DIR32);
6495 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6496 loc += sizeof (Elf32_External_Rela);
6497 }
6498 }
6499
6500 /* UnixWare sets the entsize of .plt to 4, although that doesn't
6501 really seem like the right value. */
6502 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
6503 }
6504 }
6505
6506 /* Fill in the first three entries in the global offset table. */
6507 if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
6508 {
6509 if (sdyn == NULL)
6510 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
6511 else
6512 bfd_put_32 (output_bfd,
6513 sdyn->output_section->vma + sdyn->output_offset,
6514 sgotplt->contents);
6515 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4);
6516 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8);
6517 }
6518
6519 if (sgotplt && sgotplt->size > 0)
6520 elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
6521
6522 /* At the very end of the .rofixup section is a pointer to the GOT. */
6523 if (htab->fdpic_p && htab->srofixup != NULL)
6524 {
6525 struct elf_link_hash_entry *hgot = htab->root.hgot;
6526 bfd_vma got_value = hgot->root.u.def.value
6527 + hgot->root.u.def.section->output_section->vma
6528 + hgot->root.u.def.section->output_offset;
6529
6530 sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value);
6531
6532 /* Make sure we allocated and generated the same number of fixups. */
6533 BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size);
6534 }
6535
6536 if (htab->srelfuncdesc)
6537 BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
6538 == htab->srelfuncdesc->size);
6539
6540 if (htab->root.srelgot)
6541 BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela)
6542 == htab->root.srelgot->size);
6543
6544 return TRUE;
6545 }
6546
6547 static enum elf_reloc_type_class
6548 sh_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
6549 const asection *rel_sec ATTRIBUTE_UNUSED,
6550 const Elf_Internal_Rela *rela)
6551 {
6552 switch ((int) ELF32_R_TYPE (rela->r_info))
6553 {
6554 case R_SH_RELATIVE:
6555 return reloc_class_relative;
6556 case R_SH_JMP_SLOT:
6557 return reloc_class_plt;
6558 case R_SH_COPY:
6559 return reloc_class_copy;
6560 default:
6561 return reloc_class_normal;
6562 }
6563 }
6564
6565 #if !defined SH_TARGET_ALREADY_DEFINED
6566 /* Support for Linux core dump NOTE sections. */
6567
6568 static bfd_boolean
6569 elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6570 {
6571 int offset;
6572 unsigned int size;
6573
6574 switch (note->descsz)
6575 {
6576 default:
6577 return FALSE;
6578
6579 case 168: /* Linux/SH */
6580 /* pr_cursig */
6581 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6582
6583 /* pr_pid */
6584 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6585
6586 /* pr_reg */
6587 offset = 72;
6588 size = 92;
6589
6590 break;
6591 }
6592
6593 /* Make a ".reg/999" section. */
6594 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
6595 size, note->descpos + offset);
6596 }
6597
6598 static bfd_boolean
6599 elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6600 {
6601 switch (note->descsz)
6602 {
6603 default:
6604 return FALSE;
6605
6606 case 124: /* Linux/SH elf_prpsinfo */
6607 elf_tdata (abfd)->core->program
6608 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6609 elf_tdata (abfd)->core->command
6610 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6611 }
6612
6613 /* Note that for some reason, a spurious space is tacked
6614 onto the end of the args in some (at least one anyway)
6615 implementations, so strip it off if it exists. */
6616
6617 {
6618 char *command = elf_tdata (abfd)->core->command;
6619 int n = strlen (command);
6620
6621 if (0 < n && command[n - 1] == ' ')
6622 command[n - 1] = '\0';
6623 }
6624
6625 return TRUE;
6626 }
6627 #endif /* not SH_TARGET_ALREADY_DEFINED */
6628
6629
6630 /* Return address for Ith PLT stub in section PLT, for relocation REL
6631 or (bfd_vma) -1 if it should not be included. */
6632
6633 static bfd_vma
6634 sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
6635 const arelent *rel ATTRIBUTE_UNUSED)
6636 {
6637 const struct elf_sh_plt_info *plt_info;
6638
6639 plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0);
6640 return plt->vma + get_plt_offset (plt_info, i);
6641 }
6642
6643 /* Decide whether to attempt to turn absptr or lsda encodings in
6644 shared libraries into pcrel within the given input section. */
6645
6646 static bfd_boolean
6647 sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED,
6648 struct bfd_link_info *info,
6649 asection *eh_frame_section ATTRIBUTE_UNUSED)
6650 {
6651 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6652
6653 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6654 if (htab->fdpic_p)
6655 return FALSE;
6656
6657 return TRUE;
6658 }
6659
6660 /* Adjust the contents of an eh_frame_hdr section before they're output. */
6661
6662 static bfd_byte
6663 sh_elf_encode_eh_address (bfd *abfd,
6664 struct bfd_link_info *info,
6665 asection *osec, bfd_vma offset,
6666 asection *loc_sec, bfd_vma loc_offset,
6667 bfd_vma *encoded)
6668 {
6669 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6670 struct elf_link_hash_entry *h;
6671
6672 if (!htab->fdpic_p)
6673 return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec,
6674 loc_offset, encoded);
6675
6676 h = htab->root.hgot;
6677 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6678
6679 if (! h || (sh_elf_osec_to_segment (abfd, osec)
6680 == sh_elf_osec_to_segment (abfd, loc_sec->output_section)))
6681 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6682 loc_sec, loc_offset, encoded);
6683
6684 BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec)
6685 == (sh_elf_osec_to_segment
6686 (abfd, h->root.u.def.section->output_section)));
6687
6688 *encoded = osec->vma + offset
6689 - (h->root.u.def.value
6690 + h->root.u.def.section->output_section->vma
6691 + h->root.u.def.section->output_offset);
6692
6693 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6694 }
6695
6696 #if !defined SH_TARGET_ALREADY_DEFINED
6697 #define TARGET_BIG_SYM sh_elf32_vec
6698 #define TARGET_BIG_NAME "elf32-sh"
6699 #define TARGET_LITTLE_SYM sh_elf32_le_vec
6700 #define TARGET_LITTLE_NAME "elf32-shl"
6701 #endif
6702
6703 #define ELF_ARCH bfd_arch_sh
6704 #define ELF_TARGET_ID SH_ELF_DATA
6705 #define ELF_MACHINE_CODE EM_SH
6706 #ifdef __QNXTARGET__
6707 #define ELF_MAXPAGESIZE 0x1000
6708 #else
6709 #define ELF_MAXPAGESIZE 0x80
6710 #endif
6711
6712 #define elf_symbol_leading_char '_'
6713
6714 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
6715 #define bfd_elf32_bfd_reloc_name_lookup \
6716 sh_elf_reloc_name_lookup
6717 #define elf_info_to_howto sh_elf_info_to_howto
6718 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
6719 #define elf_backend_relocate_section sh_elf_relocate_section
6720 #define bfd_elf32_bfd_get_relocated_section_contents \
6721 sh_elf_get_relocated_section_contents
6722 #define bfd_elf32_mkobject sh_elf_mkobject
6723 #define elf_backend_object_p sh_elf_object_p
6724 #define bfd_elf32_bfd_copy_private_bfd_data \
6725 sh_elf_copy_private_data
6726 #define bfd_elf32_bfd_merge_private_bfd_data \
6727 sh_elf_merge_private_data
6728
6729 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
6730 #define elf_backend_check_relocs sh_elf_check_relocs
6731 #define elf_backend_copy_indirect_symbol \
6732 sh_elf_copy_indirect_symbol
6733 #define elf_backend_create_dynamic_sections \
6734 sh_elf_create_dynamic_sections
6735 #define bfd_elf32_bfd_link_hash_table_create \
6736 sh_elf_link_hash_table_create
6737 #define elf_backend_adjust_dynamic_symbol \
6738 sh_elf_adjust_dynamic_symbol
6739 #define elf_backend_always_size_sections \
6740 sh_elf_always_size_sections
6741 #define elf_backend_size_dynamic_sections \
6742 sh_elf_size_dynamic_sections
6743 #define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
6744 #define elf_backend_finish_dynamic_symbol \
6745 sh_elf_finish_dynamic_symbol
6746 #define elf_backend_finish_dynamic_sections \
6747 sh_elf_finish_dynamic_sections
6748 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
6749 #define elf_backend_plt_sym_val sh_elf_plt_sym_val
6750 #define elf_backend_can_make_relative_eh_frame \
6751 sh_elf_use_relative_eh_frame
6752 #define elf_backend_can_make_lsda_relative_eh_frame \
6753 sh_elf_use_relative_eh_frame
6754 #define elf_backend_encode_eh_address \
6755 sh_elf_encode_eh_address
6756
6757 #define elf_backend_stack_align 8
6758 #define elf_backend_can_gc_sections 1
6759 #define elf_backend_can_refcount 1
6760 #define elf_backend_want_got_plt 1
6761 #define elf_backend_plt_readonly 1
6762 #define elf_backend_want_plt_sym 0
6763 #define elf_backend_got_header_size 12
6764 #define elf_backend_dtrel_excludes_plt 1
6765
6766 #define elf_backend_linux_prpsinfo32_ugid16 TRUE
6767
6768 #if !defined SH_TARGET_ALREADY_DEFINED
6769
6770 #include "elf32-target.h"
6771
6772 /* NetBSD support. */
6773 #undef TARGET_BIG_SYM
6774 #define TARGET_BIG_SYM sh_elf32_nbsd_vec
6775 #undef TARGET_BIG_NAME
6776 #define TARGET_BIG_NAME "elf32-sh-nbsd"
6777 #undef TARGET_LITTLE_SYM
6778 #define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec
6779 #undef TARGET_LITTLE_NAME
6780 #define TARGET_LITTLE_NAME "elf32-shl-nbsd"
6781 #undef ELF_MAXPAGESIZE
6782 #define ELF_MAXPAGESIZE 0x10000
6783 #undef ELF_COMMONPAGESIZE
6784 #undef elf_symbol_leading_char
6785 #define elf_symbol_leading_char 0
6786 #undef elf32_bed
6787 #define elf32_bed elf32_sh_nbsd_bed
6788
6789 #include "elf32-target.h"
6790
6791
6792 /* Linux support. */
6793 #undef TARGET_BIG_SYM
6794 #define TARGET_BIG_SYM sh_elf32_linux_be_vec
6795 #undef TARGET_BIG_NAME
6796 #define TARGET_BIG_NAME "elf32-shbig-linux"
6797 #undef TARGET_LITTLE_SYM
6798 #define TARGET_LITTLE_SYM sh_elf32_linux_vec
6799 #undef TARGET_LITTLE_NAME
6800 #define TARGET_LITTLE_NAME "elf32-sh-linux"
6801 #undef ELF_COMMONPAGESIZE
6802 #define ELF_COMMONPAGESIZE 0x1000
6803
6804 #undef elf_backend_grok_prstatus
6805 #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
6806 #undef elf_backend_grok_psinfo
6807 #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
6808 #undef elf32_bed
6809 #define elf32_bed elf32_sh_lin_bed
6810
6811 #include "elf32-target.h"
6812
6813
6814 /* FDPIC support. */
6815 #undef TARGET_BIG_SYM
6816 #define TARGET_BIG_SYM sh_elf32_fdpic_be_vec
6817 #undef TARGET_BIG_NAME
6818 #define TARGET_BIG_NAME "elf32-shbig-fdpic"
6819 #undef TARGET_LITTLE_SYM
6820 #define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec
6821 #undef TARGET_LITTLE_NAME
6822 #define TARGET_LITTLE_NAME "elf32-sh-fdpic"
6823
6824 #undef elf32_bed
6825 #define elf32_bed elf32_sh_fd_bed
6826
6827 #include "elf32-target.h"
6828
6829 /* VxWorks support. */
6830 #undef TARGET_BIG_SYM
6831 #define TARGET_BIG_SYM sh_elf32_vxworks_vec
6832 #undef TARGET_BIG_NAME
6833 #define TARGET_BIG_NAME "elf32-sh-vxworks"
6834 #undef TARGET_LITTLE_SYM
6835 #define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec
6836 #undef TARGET_LITTLE_NAME
6837 #define TARGET_LITTLE_NAME "elf32-shl-vxworks"
6838 #undef elf32_bed
6839 #define elf32_bed elf32_sh_vxworks_bed
6840
6841 #undef elf_backend_want_plt_sym
6842 #define elf_backend_want_plt_sym 1
6843 #undef elf_symbol_leading_char
6844 #define elf_symbol_leading_char '_'
6845 #define elf_backend_want_got_underscore 1
6846 #undef elf_backend_grok_prstatus
6847 #undef elf_backend_grok_psinfo
6848 #undef elf_backend_add_symbol_hook
6849 #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
6850 #undef elf_backend_link_output_symbol_hook
6851 #define elf_backend_link_output_symbol_hook \
6852 elf_vxworks_link_output_symbol_hook
6853 #undef elf_backend_emit_relocs
6854 #define elf_backend_emit_relocs elf_vxworks_emit_relocs
6855 #undef elf_backend_final_write_processing
6856 #define elf_backend_final_write_processing \
6857 elf_vxworks_final_write_processing
6858 #undef ELF_MAXPAGESIZE
6859 #define ELF_MAXPAGESIZE 0x1000
6860 #undef ELF_COMMONPAGESIZE
6861
6862 #include "elf32-target.h"
6863
6864 #endif /* not SH_TARGET_ALREADY_DEFINED */
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