Improve the formatting of the title strings of the binutils manual pages.
[deliverable/binutils-gdb.git] / bfd / elf32-bfin.c
CommitLineData
3b55e94a 1/* ADI Blackfin BFD support for 32-bit ELF.
82704155 2 Copyright (C) 2005-2019 Free Software Foundation, Inc.
0f64bb02
CM
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
0f64bb02
CM
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
0f64bb02 20
0f64bb02 21#include "sysdep.h"
3db64b00 22#include "bfd.h"
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CM
23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/bfin.h"
fa8f86ff 26#include "dwarf2.h"
48d502e1 27#include "hashtab.h"
0f64bb02 28
0f64bb02
CM
29/* FUNCTION : bfin_pltpc_reloc
30 ABSTRACT : TODO : figure out how to handle pltpc relocs. */
31static bfd_reloc_status_type
32bfin_pltpc_reloc (
33 bfd *abfd ATTRIBUTE_UNUSED,
34 arelent *reloc_entry ATTRIBUTE_UNUSED,
35 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 36 void * data ATTRIBUTE_UNUSED,
0f64bb02
CM
37 asection *input_section ATTRIBUTE_UNUSED,
38 bfd *output_bfd ATTRIBUTE_UNUSED,
3b55e94a 39 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
40{
41 bfd_reloc_status_type flag = bfd_reloc_ok;
3b55e94a 42 return flag;
0f64bb02
CM
43}
44\f
45
46static bfd_reloc_status_type
47bfin_pcrel24_reloc (bfd *abfd,
07d6d2b8
AM
48 arelent *reloc_entry,
49 asymbol *symbol,
50 void * data,
51 asection *input_section,
52 bfd *output_bfd,
53 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
54{
55 bfd_vma relocation;
56 bfd_size_type addr = reloc_entry->address;
57 bfd_vma output_base = 0;
58 reloc_howto_type *howto = reloc_entry->howto;
59 asection *output_section;
60 bfd_boolean relocatable = (output_bfd != NULL);
61
62 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
63 return bfd_reloc_outofrange;
64
3b55e94a
BS
65 if (bfd_is_und_section (symbol->section)
66 && (symbol->flags & BSF_WEAK) == 0
67 && !relocatable)
68 return bfd_reloc_undefined;
69
70 if (bfd_is_com_section (symbol->section))
71 relocation = 0;
0f64bb02 72 else
3b55e94a 73 relocation = symbol->value;
0f64bb02 74
3b55e94a
BS
75 output_section = symbol->section->output_section;
76
77 if (relocatable)
78 output_base = 0;
79 else
80 output_base = output_section->vma;
81
82 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
83 relocation += output_base + symbol->section->output_offset;
0f64bb02 84
3b55e94a
BS
85 if (!relocatable && !strcmp (symbol->name, symbol->section->name))
86 relocation += reloc_entry->addend;
0f64bb02 87
0f64bb02
CM
88 relocation -= input_section->output_section->vma + input_section->output_offset;
89 relocation -= reloc_entry->address;
90
91 if (howto->complain_on_overflow != complain_overflow_dont)
92 {
93 bfd_reloc_status_type status;
3b55e94a
BS
94 status = bfd_check_overflow (howto->complain_on_overflow,
95 howto->bitsize,
96 howto->rightshift,
97 bfd_arch_bits_per_address(abfd),
98 relocation);
0f64bb02
CM
99 if (status != bfd_reloc_ok)
100 return status;
101 }
3b55e94a 102
0f64bb02
CM
103 /* if rightshift is 1 and the number odd, return error. */
104 if (howto->rightshift && (relocation & 0x01))
105 {
4eca0228 106 _bfd_error_handler (_("relocation should be even number"));
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CM
107 return bfd_reloc_overflow;
108 }
109
110 relocation >>= (bfd_vma) howto->rightshift;
111 /* Shift everything up to where it's going to be used. */
112
113 relocation <<= (bfd_vma) howto->bitpos;
114
115 if (relocatable)
116 {
117 reloc_entry->address += input_section->output_offset;
118 reloc_entry->addend += symbol->section->output_offset;
119 }
120
121 {
122 short x;
123
124 /* We are getting reloc_entry->address 2 byte off from
3b55e94a
BS
125 the start of instruction. Assuming absolute postion
126 of the reloc data. But, following code had been written assuming
127 reloc address is starting at begining of instruction.
128 To compensate that I have increased the value of
129 relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
0f64bb02
CM
130
131 relocation += 1;
132 x = bfd_get_16 (abfd, (bfd_byte *) data + addr - 2);
133 x = (x & 0xff00) | ((relocation >> 16) & 0xff);
134 bfd_put_16 (abfd, x, (unsigned char *) data + addr - 2);
135
136 x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
137 x = relocation & 0xFFFF;
138 bfd_put_16 (abfd, x, (unsigned char *) data + addr );
139 }
140 return bfd_reloc_ok;
141}
142
143static bfd_reloc_status_type
3b55e94a 144bfin_imm16_reloc (bfd *abfd,
4b24dd1a
AM
145 arelent *reloc_entry,
146 asymbol *symbol,
147 void * data,
148 asection *input_section,
149 bfd *output_bfd,
150 char **error_message ATTRIBUTE_UNUSED)
0f64bb02 151{
3b55e94a
BS
152 bfd_vma relocation, x;
153 bfd_size_type reloc_addr = reloc_entry->address;
0f64bb02 154 bfd_vma output_base = 0;
3b55e94a 155 reloc_howto_type *howto = reloc_entry->howto;
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CM
156 asection *output_section;
157 bfd_boolean relocatable = (output_bfd != NULL);
158
3b55e94a
BS
159 /* Is the address of the relocation really within the section? */
160 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
161 return bfd_reloc_outofrange;
162
0f64bb02
CM
163 if (bfd_is_und_section (symbol->section)
164 && (symbol->flags & BSF_WEAK) == 0
165 && !relocatable)
166 return bfd_reloc_undefined;
167
0f64bb02 168 output_section = symbol->section->output_section;
3b55e94a 169 relocation = symbol->value;
0f64bb02
CM
170
171 /* Convert input-section-relative symbol value to absolute. */
172 if (relocatable)
173 output_base = 0;
174 else
175 output_base = output_section->vma;
176
3b55e94a 177 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
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CM
178 relocation += output_base + symbol->section->output_offset;
179
180 /* Add in supplied addend. */
181 relocation += reloc_entry->addend;
182
183 if (relocatable)
184 {
185 reloc_entry->address += input_section->output_offset;
186 reloc_entry->addend += symbol->section->output_offset;
187 }
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CM
188 else
189 {
190 reloc_entry->addend = 0;
191 }
192
193 if (howto->complain_on_overflow != complain_overflow_dont)
194 {
195 bfd_reloc_status_type flag;
196 flag = bfd_check_overflow (howto->complain_on_overflow,
3b55e94a
BS
197 howto->bitsize,
198 howto->rightshift,
199 bfd_arch_bits_per_address(abfd),
200 relocation);
0f64bb02 201 if (flag != bfd_reloc_ok)
3b55e94a 202 return flag;
0f64bb02
CM
203 }
204
0f64bb02
CM
205 /* Here the variable relocation holds the final address of the
206 symbol we are relocating against, plus any addend. */
207
0f64bb02
CM
208 relocation >>= (bfd_vma) howto->rightshift;
209 x = relocation;
210 bfd_put_16 (abfd, x, (unsigned char *) data + reloc_addr);
211 return bfd_reloc_ok;
212}
213
214
215static bfd_reloc_status_type
216bfin_byte4_reloc (bfd *abfd,
07d6d2b8
AM
217 arelent *reloc_entry,
218 asymbol *symbol,
219 void * data,
220 asection *input_section,
221 bfd *output_bfd,
222 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
223{
224 bfd_vma relocation, x;
225 bfd_size_type addr = reloc_entry->address;
226 bfd_vma output_base = 0;
227 asection *output_section;
228 bfd_boolean relocatable = (output_bfd != NULL);
229
230 /* Is the address of the relocation really within the section? */
231 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
232 return bfd_reloc_outofrange;
233
3b55e94a
BS
234 if (bfd_is_und_section (symbol->section)
235 && (symbol->flags & BSF_WEAK) == 0
236 && !relocatable)
237 return bfd_reloc_undefined;
0f64bb02 238
3b55e94a
BS
239 output_section = symbol->section->output_section;
240 relocation = symbol->value;
241 /* Convert input-section-relative symbol value to absolute. */
242 if (relocatable)
243 output_base = 0;
0f64bb02 244 else
3b55e94a
BS
245 output_base = output_section->vma;
246
247 if ((symbol->name
248 && symbol->section->name
249 && !strcmp (symbol->name, symbol->section->name))
250 || !relocatable)
0f64bb02 251 {
3b55e94a 252 relocation += output_base + symbol->section->output_offset;
0f64bb02
CM
253 }
254
3b55e94a
BS
255 relocation += reloc_entry->addend;
256
0f64bb02 257 if (relocatable)
3b55e94a 258 {
0f64bb02
CM
259 /* This output will be relocatable ... like ld -r. */
260 reloc_entry->address += input_section->output_offset;
261 reloc_entry->addend += symbol->section->output_offset;
262 }
263 else
264 {
265 reloc_entry->addend = 0;
266 }
267
268 /* Here the variable relocation holds the final address of the
269 symbol we are relocating against, plus any addend. */
270 x = relocation & 0xFFFF0000;
271 x >>=16;
272 bfd_put_16 (abfd, x, (unsigned char *) data + addr + 2);
3b55e94a 273
0f64bb02
CM
274 x = relocation & 0x0000FFFF;
275 bfd_put_16 (abfd, x, (unsigned char *) data + addr);
276 return bfd_reloc_ok;
277}
278
279/* bfin_bfd_reloc handles the blackfin arithmetic relocations.
280 Use this instead of bfd_perform_relocation. */
281static bfd_reloc_status_type
282bfin_bfd_reloc (bfd *abfd,
283 arelent *reloc_entry,
4b24dd1a
AM
284 asymbol *symbol,
285 void * data,
286 asection *input_section,
287 bfd *output_bfd,
288 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
289{
290 bfd_vma relocation;
291 bfd_size_type addr = reloc_entry->address;
292 bfd_vma output_base = 0;
293 reloc_howto_type *howto = reloc_entry->howto;
294 asection *output_section;
295 bfd_boolean relocatable = (output_bfd != NULL);
296
297 /* Is the address of the relocation really within the section? */
298 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
299 return bfd_reloc_outofrange;
300
3b55e94a
BS
301 if (bfd_is_und_section (symbol->section)
302 && (symbol->flags & BSF_WEAK) == 0
303 && !relocatable)
304 return bfd_reloc_undefined;
305
306 /* Get symbol value. (Common symbols are special.) */
307 if (bfd_is_com_section (symbol->section))
308 relocation = 0;
0f64bb02 309 else
3b55e94a
BS
310 relocation = symbol->value;
311
312 output_section = symbol->section->output_section;
313
314 /* Convert input-section-relative symbol value to absolute. */
315 if (relocatable)
316 output_base = 0;
317 else
318 output_base = output_section->vma;
319
320 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
321 relocation += output_base + symbol->section->output_offset;
322
323 if (!relocatable && !strcmp (symbol->name, symbol->section->name))
0f64bb02 324 {
3b55e94a
BS
325 /* Add in supplied addend. */
326 relocation += reloc_entry->addend;
0f64bb02 327 }
3b55e94a 328
0f64bb02
CM
329 /* Here the variable relocation holds the final address of the
330 symbol we are relocating against, plus any addend. */
331
535b785f 332 if (howto->pc_relative)
0f64bb02
CM
333 {
334 relocation -= input_section->output_section->vma + input_section->output_offset;
335
535b785f 336 if (howto->pcrel_offset)
07d6d2b8 337 relocation -= reloc_entry->address;
0f64bb02
CM
338 }
339
340 if (relocatable)
341 {
342 reloc_entry->address += input_section->output_offset;
343 reloc_entry->addend += symbol->section->output_offset;
344 }
345
346 if (howto->complain_on_overflow != complain_overflow_dont)
347 {
348 bfd_reloc_status_type status;
349
3b55e94a 350 status = bfd_check_overflow (howto->complain_on_overflow,
07d6d2b8
AM
351 howto->bitsize,
352 howto->rightshift,
353 bfd_arch_bits_per_address(abfd),
354 relocation);
0f64bb02
CM
355 if (status != bfd_reloc_ok)
356 return status;
357 }
3b55e94a 358
0f64bb02
CM
359 /* If rightshift is 1 and the number odd, return error. */
360 if (howto->rightshift && (relocation & 0x01))
361 {
4eca0228 362 _bfd_error_handler (_("relocation should be even number"));
0f64bb02
CM
363 return bfd_reloc_overflow;
364 }
365
366 relocation >>= (bfd_vma) howto->rightshift;
367
368 /* Shift everything up to where it's going to be used. */
369
370 relocation <<= (bfd_vma) howto->bitpos;
371
3b55e94a 372#define DOIT(x) \
0f64bb02
CM
373 x = ( (x & ~howto->dst_mask) | (relocation & howto->dst_mask))
374
375 /* handle 8 and 16 bit relocations here. */
376 switch (howto->size)
377 {
378 case 0:
379 {
07d6d2b8
AM
380 char x = bfd_get_8 (abfd, (char *) data + addr);
381 DOIT (x);
382 bfd_put_8 (abfd, x, (unsigned char *) data + addr);
0f64bb02
CM
383 }
384 break;
385
386 case 1:
387 {
07d6d2b8
AM
388 unsigned short x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
389 DOIT (x);
390 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + addr);
0f64bb02
CM
391 }
392 break;
393
394 default:
395 return bfd_reloc_other;
396 }
397
3b55e94a 398 return bfd_reloc_ok;
0f64bb02
CM
399}
400
0f64bb02
CM
401/* HOWTO Table for blackfin.
402 Blackfin relocations are fairly complicated.
403 Some of the salient features are
404 a. Even numbered offsets. A number of (not all) relocations are
405 even numbered. This means that the rightmost bit is not stored.
406 Needs to right shift by 1 and check to see if value is not odd
407 b. A relocation can be an expression. An expression takes on
408 a variety of relocations arranged in a stack.
409 As a result, we cannot use the standard generic function as special
410 function. We will have our own, which is very similar to the standard
411 generic function except that it understands how to get the value from
412 the relocation stack. . */
413
414#define BFIN_RELOC_MIN 0
48d502e1 415#define BFIN_RELOC_MAX 0x21
0f64bb02
CM
416#define BFIN_GNUEXT_RELOC_MIN 0x40
417#define BFIN_GNUEXT_RELOC_MAX 0x43
418#define BFIN_ARELOC_MIN 0xE0
419#define BFIN_ARELOC_MAX 0xF3
420
421static reloc_howto_type bfin_howto_table [] =
422{
423 /* This reloc does nothing. . */
cb88ce9f 424 HOWTO (R_BFIN_UNUSED0, /* type. */
0f64bb02 425 0, /* rightshift. */
6346d5ca
AM
426 3, /* size (0 = byte, 1 = short, 2 = long). */
427 0, /* bitsize. */
0f64bb02
CM
428 FALSE, /* pc_relative. */
429 0, /* bitpos. */
6346d5ca 430 complain_overflow_dont, /* complain_on_overflow. */
0f64bb02 431 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 432 "R_BFIN_UNUSED0", /* name. */
0f64bb02
CM
433 FALSE, /* partial_inplace. */
434 0, /* src_mask. */
435 0, /* dst_mask. */
436 FALSE), /* pcrel_offset. */
437
cb88ce9f 438 HOWTO (R_BFIN_PCREL5M2, /* type. */
0f64bb02
CM
439 1, /* rightshift. */
440 1, /* size (0 = byte, 1 = short, 2 = long).. */
441 4, /* bitsize. */
442 TRUE, /* pc_relative. */
443 0, /* bitpos. */
444 complain_overflow_unsigned, /* complain_on_overflow. */
445 bfin_bfd_reloc, /* special_function. */
cb88ce9f 446 "R_BFIN_PCREL5M2", /* name. */
0f64bb02 447 FALSE, /* partial_inplace. */
f4707595 448 0, /* src_mask. */
0f64bb02
CM
449 0x0000000F, /* dst_mask. */
450 FALSE), /* pcrel_offset. */
451
cb88ce9f 452 HOWTO (R_BFIN_UNUSED1, /* type. */
0f64bb02 453 0, /* rightshift. */
6346d5ca
AM
454 3, /* size (0 = byte, 1 = short, 2 = long). */
455 0, /* bitsize. */
0f64bb02
CM
456 FALSE, /* pc_relative. */
457 0, /* bitpos. */
6346d5ca 458 complain_overflow_dont, /* complain_on_overflow. */
0f64bb02 459 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 460 "R_BFIN_UNUSED1", /* name. */
0f64bb02
CM
461 FALSE, /* partial_inplace. */
462 0, /* src_mask. */
463 0, /* dst_mask. */
464 FALSE), /* pcrel_offset. */
465
cb88ce9f 466 HOWTO (R_BFIN_PCREL10, /* type. */
0f64bb02
CM
467 1, /* rightshift. */
468 1, /* size (0 = byte, 1 = short, 2 = long). */
469 10, /* bitsize. */
470 TRUE, /* pc_relative. */
471 0, /* bitpos. */
472 complain_overflow_signed, /* complain_on_overflow. */
473 bfin_bfd_reloc, /* special_function. */
cb88ce9f 474 "R_BFIN_PCREL10", /* name. */
0f64bb02 475 FALSE, /* partial_inplace. */
f4707595 476 0, /* src_mask. */
0f64bb02
CM
477 0x000003FF, /* dst_mask. */
478 TRUE), /* pcrel_offset. */
3b55e94a 479
cb88ce9f 480 HOWTO (R_BFIN_PCREL12_JUMP, /* type. */
0f64bb02
CM
481 1, /* rightshift. */
482 /* the offset is actually 13 bit
483 aligned on a word boundary so
484 only 12 bits have to be used.
485 Right shift the rightmost bit.. */
486 1, /* size (0 = byte, 1 = short, 2 = long). */
487 12, /* bitsize. */
488 TRUE, /* pc_relative. */
489 0, /* bitpos. */
490 complain_overflow_signed, /* complain_on_overflow. */
491 bfin_bfd_reloc, /* special_function. */
cb88ce9f 492 "R_BFIN_PCREL12_JUMP", /* name. */
0f64bb02 493 FALSE, /* partial_inplace. */
f4707595 494 0, /* src_mask. */
0f64bb02
CM
495 0x0FFF, /* dst_mask. */
496 TRUE), /* pcrel_offset. */
497
cb88ce9f 498 HOWTO (R_BFIN_RIMM16, /* type. */
0f64bb02
CM
499 0, /* rightshift. */
500 1, /* size (0 = byte, 1 = short, 2 = long). */
501 16, /* bitsize. */
502 FALSE, /* pc_relative. */
503 0, /* bitpos. */
504 complain_overflow_signed, /* complain_on_overflow. */
505 bfin_imm16_reloc, /* special_function. */
cb88ce9f 506 "R_BFIN_RIMM16", /* name. */
0f64bb02 507 FALSE, /* partial_inplace. */
f4707595 508 0, /* src_mask. */
0f64bb02
CM
509 0x0000FFFF, /* dst_mask. */
510 TRUE), /* pcrel_offset. */
511
cb88ce9f 512 HOWTO (R_BFIN_LUIMM16, /* type. */
0f64bb02
CM
513 0, /* rightshift. */
514 1, /* size (0 = byte, 1 = short, 2 = long). */
515 16, /* bitsize. */
516 FALSE, /* pc_relative. */
517 0, /* bitpos. */
518 complain_overflow_dont, /* complain_on_overflow. */
519 bfin_imm16_reloc, /* special_function. */
cb88ce9f 520 "R_BFIN_LUIMM16", /* name. */
0f64bb02 521 FALSE, /* partial_inplace. */
f4707595 522 0, /* src_mask. */
0f64bb02
CM
523 0x0000FFFF, /* dst_mask. */
524 TRUE), /* pcrel_offset. */
3b55e94a 525
cb88ce9f 526 HOWTO (R_BFIN_HUIMM16, /* type. */
0f64bb02
CM
527 16, /* rightshift. */
528 1, /* size (0 = byte, 1 = short, 2 = long). */
529 16, /* bitsize. */
530 FALSE, /* pc_relative. */
531 0, /* bitpos. */
532 complain_overflow_unsigned, /* complain_on_overflow. */
533 bfin_imm16_reloc, /* special_function. */
cb88ce9f 534 "R_BFIN_HUIMM16", /* name. */
0f64bb02 535 FALSE, /* partial_inplace. */
f4707595 536 0, /* src_mask. */
0f64bb02
CM
537 0x0000FFFF, /* dst_mask. */
538 TRUE), /* pcrel_offset. */
539
cb88ce9f 540 HOWTO (R_BFIN_PCREL12_JUMP_S, /* type. */
0f64bb02
CM
541 1, /* rightshift. */
542 1, /* size (0 = byte, 1 = short, 2 = long). */
543 12, /* bitsize. */
544 TRUE, /* pc_relative. */
545 0, /* bitpos. */
546 complain_overflow_signed, /* complain_on_overflow. */
547 bfin_bfd_reloc, /* special_function. */
cb88ce9f 548 "R_BFIN_PCREL12_JUMP_S", /* name. */
0f64bb02 549 FALSE, /* partial_inplace. */
f4707595 550 0, /* src_mask. */
0f64bb02
CM
551 0x00000FFF, /* dst_mask. */
552 TRUE), /* pcrel_offset. */
553
cb88ce9f 554 HOWTO (R_BFIN_PCREL24_JUMP_X, /* type. */
07d6d2b8
AM
555 1, /* rightshift. */
556 2, /* size (0 = byte, 1 = short, 2 = long). */
557 24, /* bitsize. */
558 TRUE, /* pc_relative. */
559 0, /* bitpos. */
560 complain_overflow_signed, /* complain_on_overflow. */
561 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 562 "R_BFIN_PCREL24_JUMP_X", /* name. */
0f64bb02 563 FALSE, /* partial_inplace. */
f4707595 564 0, /* src_mask. */
0f64bb02
CM
565 0x00FFFFFF, /* dst_mask. */
566 TRUE), /* pcrel_offset. */
567
cb88ce9f 568 HOWTO (R_BFIN_PCREL24, /* type. */
0f64bb02
CM
569 1, /* rightshift. */
570 2, /* size (0 = byte, 1 = short, 2 = long). */
571 24, /* bitsize. */
572 TRUE, /* pc_relative. */
573 0, /* bitpos. */
574 complain_overflow_signed, /* complain_on_overflow. */
575 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 576 "R_BFIN_PCREL24", /* name. */
0f64bb02 577 FALSE, /* partial_inplace. */
f4707595 578 0, /* src_mask. */
0f64bb02
CM
579 0x00FFFFFF, /* dst_mask. */
580 TRUE), /* pcrel_offset. */
581
cb88ce9f 582 HOWTO (R_BFIN_UNUSEDB, /* type. */
0f64bb02 583 0, /* rightshift. */
6346d5ca
AM
584 3, /* size (0 = byte, 1 = short, 2 = long). */
585 0, /* bitsize. */
0f64bb02
CM
586 FALSE, /* pc_relative. */
587 0, /* bitpos. */
588 complain_overflow_dont, /* complain_on_overflow. */
589 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 590 "R_BFIN_UNUSEDB", /* name. */
0f64bb02
CM
591 FALSE, /* partial_inplace. */
592 0, /* src_mask. */
593 0, /* dst_mask. */
594 FALSE), /* pcrel_offset. */
595
cb88ce9f 596 HOWTO (R_BFIN_UNUSEDC, /* type. */
0f64bb02 597 0, /* rightshift. */
6346d5ca
AM
598 3, /* size (0 = byte, 1 = short, 2 = long). */
599 0, /* bitsize. */
0f64bb02
CM
600 FALSE, /* pc_relative. */
601 0, /* bitpos. */
602 complain_overflow_dont, /* complain_on_overflow. */
603 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 604 "R_BFIN_UNUSEDC", /* name. */
0f64bb02
CM
605 FALSE, /* partial_inplace. */
606 0, /* src_mask. */
607 0, /* dst_mask. */
608 FALSE), /* pcrel_offset. */
609
cb88ce9f 610 HOWTO (R_BFIN_PCREL24_JUMP_L, /* type. */
0f64bb02
CM
611 1, /* rightshift. */
612 2, /* size (0 = byte, 1 = short, 2 = long). */
613 24, /* bitsize. */
614 TRUE, /* pc_relative. */
615 0, /* bitpos. */
616 complain_overflow_signed, /* complain_on_overflow. */
617 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 618 "R_BFIN_PCREL24_JUMP_L", /* name. */
0f64bb02 619 FALSE, /* partial_inplace. */
f4707595 620 0, /* src_mask. */
0f64bb02
CM
621 0x00FFFFFF, /* dst_mask. */
622 TRUE), /* pcrel_offset. */
623
cb88ce9f 624 HOWTO (R_BFIN_PCREL24_CALL_X, /* type. */
0f64bb02
CM
625 1, /* rightshift. */
626 2, /* size (0 = byte, 1 = short, 2 = long). */
627 24, /* bitsize. */
628 TRUE, /* pc_relative. */
629 0, /* bitpos. */
630 complain_overflow_signed, /* complain_on_overflow. */
631 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 632 "R_BFIN_PCREL24_CALL_X", /* name. */
0f64bb02 633 FALSE, /* partial_inplace. */
f4707595 634 0, /* src_mask. */
0f64bb02
CM
635 0x00FFFFFF, /* dst_mask. */
636 TRUE), /* pcrel_offset. */
637
cb88ce9f 638 HOWTO (R_BFIN_VAR_EQ_SYMB, /* type. */
0f64bb02
CM
639 0, /* rightshift. */
640 2, /* size (0 = byte, 1 = short, 2 = long). */
641 32, /* bitsize. */
642 FALSE, /* pc_relative. */
643 0, /* bitpos. */
644 complain_overflow_bitfield, /* complain_on_overflow. */
645 bfin_bfd_reloc, /* special_function. */
cb88ce9f 646 "R_BFIN_VAR_EQ_SYMB", /* name. */
0f64bb02
CM
647 FALSE, /* partial_inplace. */
648 0, /* src_mask. */
649 0, /* dst_mask. */
650 FALSE), /* pcrel_offset. */
651
cb88ce9f 652 HOWTO (R_BFIN_BYTE_DATA, /* type. */
0f64bb02
CM
653 0, /* rightshift. */
654 0, /* size (0 = byte, 1 = short, 2 = long). */
655 8, /* bitsize. */
656 FALSE, /* pc_relative. */
657 0, /* bitpos. */
658 complain_overflow_unsigned, /* complain_on_overflow. */
659 bfin_bfd_reloc, /* special_function. */
cb88ce9f 660 "R_BFIN_BYTE_DATA", /* name. */
0f64bb02 661 FALSE, /* partial_inplace. */
f4707595 662 0, /* src_mask. */
0f64bb02
CM
663 0xFF, /* dst_mask. */
664 TRUE), /* pcrel_offset. */
665
cb88ce9f 666 HOWTO (R_BFIN_BYTE2_DATA, /* type. */
0f64bb02
CM
667 0, /* rightshift. */
668 1, /* size (0 = byte, 1 = short, 2 = long). */
669 16, /* bitsize. */
670 FALSE, /* pc_relative. */
671 0, /* bitpos. */
672 complain_overflow_signed, /* complain_on_overflow. */
673 bfin_bfd_reloc, /* special_function. */
cb88ce9f 674 "R_BFIN_BYTE2_DATA", /* name. */
0f64bb02 675 FALSE, /* partial_inplace. */
f4707595 676 0, /* src_mask. */
0f64bb02
CM
677 0xFFFF, /* dst_mask. */
678 TRUE), /* pcrel_offset. */
679
cb88ce9f 680 HOWTO (R_BFIN_BYTE4_DATA, /* type. */
0f64bb02
CM
681 0, /* rightshift. */
682 2, /* size (0 = byte, 1 = short, 2 = long). */
683 32, /* bitsize. */
684 FALSE, /* pc_relative. */
685 0, /* bitpos. */
686 complain_overflow_unsigned, /* complain_on_overflow. */
687 bfin_byte4_reloc, /* special_function. */
cb88ce9f 688 "R_BFIN_BYTE4_DATA", /* name. */
0f64bb02 689 FALSE, /* partial_inplace. */
f4707595 690 0, /* src_mask. */
0f64bb02
CM
691 0xFFFFFFFF, /* dst_mask. */
692 TRUE), /* pcrel_offset. */
693
cb88ce9f 694 HOWTO (R_BFIN_PCREL11, /* type. */
0f64bb02
CM
695 1, /* rightshift. */
696 1, /* size (0 = byte, 1 = short, 2 = long). */
697 10, /* bitsize. */
698 TRUE, /* pc_relative. */
699 0, /* bitpos. */
700 complain_overflow_unsigned, /* complain_on_overflow. */
701 bfin_bfd_reloc, /* special_function. */
cb88ce9f 702 "R_BFIN_PCREL11", /* name. */
0f64bb02 703 FALSE, /* partial_inplace. */
f4707595 704 0, /* src_mask. */
0f64bb02
CM
705 0x000003FF, /* dst_mask. */
706 FALSE), /* pcrel_offset. */
48d502e1
BS
707
708
709 /* A 18-bit signed operand with the GOT offset for the address of
710 the symbol. */
07d6d2b8 711 HOWTO (R_BFIN_GOT17M4, /* type */
48d502e1
BS
712 2, /* rightshift */
713 1, /* size (0 = byte, 1 = short, 2 = long) */
714 16, /* bitsize */
715 FALSE, /* pc_relative */
716 0, /* bitpos */
717 complain_overflow_signed, /* complain_on_overflow */
718 bfd_elf_generic_reloc, /* special_function */
5dff4664 719 "R_BFIN_GOT17M4", /* name */
48d502e1 720 FALSE, /* partial_inplace */
07d6d2b8
AM
721 0xffff, /* src_mask */
722 0xffff, /* dst_mask */
723 FALSE), /* pcrel_offset */
48d502e1
BS
724
725 /* The upper 16 bits of the GOT offset for the address of the
726 symbol. */
07d6d2b8 727 HOWTO (R_BFIN_GOTHI, /* type */
48d502e1
BS
728 0, /* rightshift */
729 1, /* size (0 = byte, 1 = short, 2 = long) */
730 16, /* bitsize */
731 FALSE, /* pc_relative */
732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
734 bfd_elf_generic_reloc, /* special_function */
735 "R_BFIN_GOTHI", /* name */
736 FALSE, /* partial_inplace */
07d6d2b8 737 0xffff, /* src_mask */
48d502e1 738 0xffff, /* dst_mask */
07d6d2b8 739 FALSE), /* pcrel_offset */
48d502e1
BS
740
741 /* The lower 16 bits of the GOT offset for the address of the
742 symbol. */
07d6d2b8 743 HOWTO (R_BFIN_GOTLO, /* type */
48d502e1
BS
744 0, /* rightshift */
745 1, /* size (0 = byte, 1 = short, 2 = long) */
746 16, /* bitsize */
747 FALSE, /* pc_relative */
748 0, /* bitpos */
749 complain_overflow_dont, /* complain_on_overflow */
750 bfd_elf_generic_reloc, /* special_function */
751 "R_BFIN_GOTLO", /* name */
752 FALSE, /* partial_inplace */
753 0xffff, /* src_mask */
754 0xffff, /* dst_mask */
07d6d2b8 755 FALSE), /* pcrel_offset */
48d502e1
BS
756
757 /* The 32-bit address of the canonical descriptor of a function. */
758 HOWTO (R_BFIN_FUNCDESC, /* type */
759 0, /* rightshift */
760 2, /* size (0 = byte, 1 = short, 2 = long) */
761 32, /* bitsize */
762 FALSE, /* pc_relative */
763 0, /* bitpos */
764 complain_overflow_bitfield, /* complain_on_overflow */
765 bfd_elf_generic_reloc, /* special_function */
766 "R_BFIN_FUNCDESC", /* name */
767 FALSE, /* partial_inplace */
768 0xffffffff, /* src_mask */
769 0xffffffff, /* dst_mask */
770 FALSE), /* pcrel_offset */
771
772 /* A 12-bit signed operand with the GOT offset for the address of
773 canonical descriptor of a function. */
774 HOWTO (R_BFIN_FUNCDESC_GOT17M4, /* type */
775 2, /* rightshift */
776 1, /* size (0 = byte, 1 = short, 2 = long) */
777 16, /* bitsize */
778 FALSE, /* pc_relative */
779 0, /* bitpos */
780 complain_overflow_signed, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_BFIN_FUNCDESC_GOT17M4", /* name */
783 FALSE, /* partial_inplace */
07d6d2b8
AM
784 0xffff, /* src_mask */
785 0xffff, /* dst_mask */
786 FALSE), /* pcrel_offset */
48d502e1
BS
787
788 /* The upper 16 bits of the GOT offset for the address of the
789 canonical descriptor of a function. */
790 HOWTO (R_BFIN_FUNCDESC_GOTHI, /* type */
791 0, /* rightshift */
792 1, /* size (0 = byte, 1 = short, 2 = long) */
793 16, /* bitsize */
794 FALSE, /* pc_relative */
795 0, /* bitpos */
796 complain_overflow_dont, /* complain_on_overflow */
797 bfd_elf_generic_reloc, /* special_function */
798 "R_BFIN_FUNCDESC_GOTHI", /* name */
799 FALSE, /* partial_inplace */
800 0xffff, /* src_mask */
801 0xffff, /* dst_mask */
07d6d2b8 802 FALSE), /* pcrel_offset */
48d502e1
BS
803
804 /* The lower 16 bits of the GOT offset for the address of the
805 canonical descriptor of a function. */
806 HOWTO (R_BFIN_FUNCDESC_GOTLO, /* type */
807 0, /* rightshift */
808 1, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_BFIN_FUNCDESC_GOTLO", /* name */
815 FALSE, /* partial_inplace */
816 0xffff, /* src_mask */
817 0xffff, /* dst_mask */
07d6d2b8 818 FALSE), /* pcrel_offset */
48d502e1
BS
819
820 /* The 32-bit address of the canonical descriptor of a function. */
821 HOWTO (R_BFIN_FUNCDESC_VALUE, /* type */
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 64, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_bitfield, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_BFIN_FUNCDESC_VALUE", /* name */
830 FALSE, /* partial_inplace */
831 0xffffffff, /* src_mask */
832 0xffffffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
834
835 /* A 12-bit signed operand with the GOT offset for the address of
836 canonical descriptor of a function. */
837 HOWTO (R_BFIN_FUNCDESC_GOTOFF17M4, /* type */
838 2, /* rightshift */
839 1, /* size (0 = byte, 1 = short, 2 = long) */
840 16, /* bitsize */
841 FALSE, /* pc_relative */
842 0, /* bitpos */
843 complain_overflow_signed, /* complain_on_overflow */
844 bfd_elf_generic_reloc, /* special_function */
845 "R_BFIN_FUNCDESC_GOTOFF17M4", /* name */
846 FALSE, /* partial_inplace */
07d6d2b8
AM
847 0xffff, /* src_mask */
848 0xffff, /* dst_mask */
849 FALSE), /* pcrel_offset */
48d502e1
BS
850
851 /* The upper 16 bits of the GOT offset for the address of the
852 canonical descriptor of a function. */
853 HOWTO (R_BFIN_FUNCDESC_GOTOFFHI, /* type */
854 0, /* rightshift */
855 1, /* size (0 = byte, 1 = short, 2 = long) */
856 16, /* bitsize */
857 FALSE, /* pc_relative */
858 0, /* bitpos */
859 complain_overflow_dont, /* complain_on_overflow */
860 bfd_elf_generic_reloc, /* special_function */
861 "R_BFIN_FUNCDESC_GOTOFFHI", /* name */
862 FALSE, /* partial_inplace */
863 0xffff, /* src_mask */
864 0xffff, /* dst_mask */
07d6d2b8 865 FALSE), /* pcrel_offset */
48d502e1
BS
866
867 /* The lower 16 bits of the GOT offset for the address of the
868 canonical descriptor of a function. */
869 HOWTO (R_BFIN_FUNCDESC_GOTOFFLO, /* type */
870 0, /* rightshift */
871 1, /* size (0 = byte, 1 = short, 2 = long) */
872 16, /* bitsize */
873 FALSE, /* pc_relative */
874 0, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
876 bfd_elf_generic_reloc, /* special_function */
877 "R_BFIN_FUNCDESC_GOTOFFLO", /* name */
878 FALSE, /* partial_inplace */
879 0xffff, /* src_mask */
880 0xffff, /* dst_mask */
07d6d2b8 881 FALSE), /* pcrel_offset */
48d502e1
BS
882
883 /* A 12-bit signed operand with the GOT offset for the address of
884 the symbol. */
07d6d2b8 885 HOWTO (R_BFIN_GOTOFF17M4, /* type */
48d502e1
BS
886 2, /* rightshift */
887 1, /* size (0 = byte, 1 = short, 2 = long) */
888 16, /* bitsize */
889 FALSE, /* pc_relative */
890 0, /* bitpos */
891 complain_overflow_signed, /* complain_on_overflow */
892 bfd_elf_generic_reloc, /* special_function */
893 "R_BFIN_GOTOFF17M4", /* name */
894 FALSE, /* partial_inplace */
07d6d2b8
AM
895 0xffff, /* src_mask */
896 0xffff, /* dst_mask */
897 FALSE), /* pcrel_offset */
48d502e1
BS
898
899 /* The upper 16 bits of the GOT offset for the address of the
900 symbol. */
07d6d2b8 901 HOWTO (R_BFIN_GOTOFFHI, /* type */
48d502e1
BS
902 0, /* rightshift */
903 1, /* size (0 = byte, 1 = short, 2 = long) */
904 16, /* bitsize */
905 FALSE, /* pc_relative */
906 0, /* bitpos */
907 complain_overflow_dont, /* complain_on_overflow */
908 bfd_elf_generic_reloc, /* special_function */
909 "R_BFIN_GOTOFFHI", /* name */
910 FALSE, /* partial_inplace */
911 0xffff, /* src_mask */
912 0xffff, /* dst_mask */
07d6d2b8 913 FALSE), /* pcrel_offset */
48d502e1
BS
914
915 /* The lower 16 bits of the GOT offset for the address of the
916 symbol. */
917 HOWTO (R_BFIN_GOTOFFLO, /* type */
918 0, /* rightshift */
919 1, /* size (0 = byte, 1 = short, 2 = long) */
920 16, /* bitsize */
921 FALSE, /* pc_relative */
922 0, /* bitpos */
923 complain_overflow_dont, /* complain_on_overflow */
924 bfd_elf_generic_reloc, /* special_function */
925 "R_BFIN_GOTOFFLO", /* name */
926 FALSE, /* partial_inplace */
927 0xffff, /* src_mask */
928 0xffff, /* dst_mask */
07d6d2b8 929 FALSE), /* pcrel_offset */
0f64bb02
CM
930};
931
0f64bb02
CM
932static reloc_howto_type bfin_gnuext_howto_table [] =
933{
cb88ce9f 934 HOWTO (R_BFIN_PLTPC, /* type. */
0f64bb02
CM
935 0, /* rightshift. */
936 1, /* size (0 = byte, 1 = short, 2 = long). */
937 16, /* bitsize. */
938 FALSE, /* pc_relative. */
939 0, /* bitpos. */
940 complain_overflow_bitfield, /* complain_on_overflow. */
941 bfin_pltpc_reloc, /* special_function. */
cb88ce9f 942 "R_BFIN_PLTPC", /* name. */
0f64bb02
CM
943 FALSE, /* partial_inplace. */
944 0xffff, /* src_mask. */
945 0xffff, /* dst_mask. */
946 FALSE), /* pcrel_offset. */
947
cb88ce9f 948 HOWTO (R_BFIN_GOT, /* type. */
0f64bb02
CM
949 0, /* rightshift. */
950 1, /* size (0 = byte, 1 = short, 2 = long). */
951 16, /* bitsize. */
952 FALSE, /* pc_relative. */
953 0, /* bitpos. */
954 complain_overflow_bitfield, /* complain_on_overflow. */
955 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 956 "R_BFIN_GOT", /* name. */
0f64bb02
CM
957 FALSE, /* partial_inplace. */
958 0x7fff, /* src_mask. */
959 0x7fff, /* dst_mask. */
960 FALSE), /* pcrel_offset. */
961
962/* GNU extension to record C++ vtable hierarchy. */
07d6d2b8
AM
963 HOWTO (R_BFIN_GNU_VTINHERIT, /* type. */
964 0, /* rightshift. */
965 2, /* size (0 = byte, 1 = short, 2 = long). */
966 0, /* bitsize. */
967 FALSE, /* pc_relative. */
968 0, /* bitpos. */
969 complain_overflow_dont, /* complain_on_overflow. */
970 NULL, /* special_function. */
971 "R_BFIN_GNU_VTINHERIT", /* name. */
972 FALSE, /* partial_inplace. */
973 0, /* src_mask. */
974 0, /* dst_mask. */
975 FALSE), /* pcrel_offset. */
0f64bb02
CM
976
977/* GNU extension to record C++ vtable member usage. */
978 HOWTO (R_BFIN_GNU_VTENTRY, /* type. */
07d6d2b8
AM
979 0, /* rightshift. */
980 2, /* size (0 = byte, 1 = short, 2 = long). */
981 0, /* bitsize. */
982 FALSE, /* pc_relative. */
983 0, /* bitpos. */
984 complain_overflow_dont, /* complain_on_overflow. */
985 _bfd_elf_rel_vtable_reloc_fn, /* special_function. */
986 "R_BFIN_GNU_VTENTRY", /* name. */
987 FALSE, /* partial_inplace. */
988 0, /* src_mask. */
989 0, /* dst_mask. */
990 FALSE) /* pcrel_offset. */
0f64bb02
CM
991};
992
993struct bfin_reloc_map
994{
07d6d2b8 995 bfd_reloc_code_real_type bfd_reloc_val;
0f64bb02
CM
996 unsigned int bfin_reloc_val;
997};
998
999static const struct bfin_reloc_map bfin_reloc_map [] =
1000{
cb88ce9f
BS
1001 { BFD_RELOC_NONE, R_BFIN_UNUSED0 },
1002 { BFD_RELOC_BFIN_5_PCREL, R_BFIN_PCREL5M2 },
1003 { BFD_RELOC_NONE, R_BFIN_UNUSED1 },
1004 { BFD_RELOC_BFIN_10_PCREL, R_BFIN_PCREL10 },
1005 { BFD_RELOC_BFIN_12_PCREL_JUMP, R_BFIN_PCREL12_JUMP },
1006 { BFD_RELOC_BFIN_16_IMM, R_BFIN_RIMM16 },
1007 { BFD_RELOC_BFIN_16_LOW, R_BFIN_LUIMM16 },
1008 { BFD_RELOC_BFIN_16_HIGH, R_BFIN_HUIMM16 },
1009 { BFD_RELOC_BFIN_12_PCREL_JUMP_S, R_BFIN_PCREL12_JUMP_S },
1010 { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
1011 { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
1012 { BFD_RELOC_BFIN_24_PCREL_JUMP_L, R_BFIN_PCREL24_JUMP_L },
1013 { BFD_RELOC_NONE, R_BFIN_UNUSEDB },
1014 { BFD_RELOC_NONE, R_BFIN_UNUSEDC },
1015 { BFD_RELOC_BFIN_24_PCREL_CALL_X, R_BFIN_PCREL24_CALL_X },
1016 { BFD_RELOC_8, R_BFIN_BYTE_DATA },
1017 { BFD_RELOC_16, R_BFIN_BYTE2_DATA },
1018 { BFD_RELOC_32, R_BFIN_BYTE4_DATA },
1019 { BFD_RELOC_BFIN_11_PCREL, R_BFIN_PCREL11 },
1020 { BFD_RELOC_BFIN_GOT, R_BFIN_GOT },
1021 { BFD_RELOC_BFIN_PLTPC, R_BFIN_PLTPC },
48d502e1
BS
1022
1023 { BFD_RELOC_BFIN_GOT17M4, R_BFIN_GOT17M4 },
1024 { BFD_RELOC_BFIN_GOTHI, R_BFIN_GOTHI },
1025 { BFD_RELOC_BFIN_GOTLO, R_BFIN_GOTLO },
1026 { BFD_RELOC_BFIN_FUNCDESC, R_BFIN_FUNCDESC },
1027 { BFD_RELOC_BFIN_FUNCDESC_GOT17M4, R_BFIN_FUNCDESC_GOT17M4 },
1028 { BFD_RELOC_BFIN_FUNCDESC_GOTHI, R_BFIN_FUNCDESC_GOTHI },
1029 { BFD_RELOC_BFIN_FUNCDESC_GOTLO, R_BFIN_FUNCDESC_GOTLO },
1030 { BFD_RELOC_BFIN_FUNCDESC_VALUE, R_BFIN_FUNCDESC_VALUE },
1031 { BFD_RELOC_BFIN_FUNCDESC_GOTOFF17M4, R_BFIN_FUNCDESC_GOTOFF17M4 },
1032 { BFD_RELOC_BFIN_FUNCDESC_GOTOFFHI, R_BFIN_FUNCDESC_GOTOFFHI },
1033 { BFD_RELOC_BFIN_FUNCDESC_GOTOFFLO, R_BFIN_FUNCDESC_GOTOFFLO },
1034 { BFD_RELOC_BFIN_GOTOFF17M4, R_BFIN_GOTOFF17M4 },
1035 { BFD_RELOC_BFIN_GOTOFFHI, R_BFIN_GOTOFFHI },
1036 { BFD_RELOC_BFIN_GOTOFFLO, R_BFIN_GOTOFFLO },
1037
0f64bb02
CM
1038 { BFD_RELOC_VTABLE_INHERIT, R_BFIN_GNU_VTINHERIT },
1039 { BFD_RELOC_VTABLE_ENTRY, R_BFIN_GNU_VTENTRY },
0f64bb02
CM
1040};
1041
1042
f3185997
NC
1043static bfd_boolean
1044bfin_info_to_howto (bfd *abfd,
07d6d2b8
AM
1045 arelent *cache_ptr,
1046 Elf_Internal_Rela *dst)
0f64bb02
CM
1047{
1048 unsigned int r_type;
1049
1050 r_type = ELF32_R_TYPE (dst->r_info);
1051
1052 if (r_type <= BFIN_RELOC_MAX)
1053 cache_ptr->howto = &bfin_howto_table [r_type];
1054
0f64bb02
CM
1055 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1056 cache_ptr->howto = &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1057
1058 else
f3185997
NC
1059 {
1060 /* xgettext:c-format */
1061 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1062 abfd, r_type);
1063 bfd_set_error (bfd_error_bad_value);
1064 return FALSE;
1065 }
1066
1067 return TRUE;
0f64bb02 1068}
157090f7 1069
0f64bb02
CM
1070/* Given a BFD reloc type, return the howto. */
1071static reloc_howto_type *
1072bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
1073 bfd_reloc_code_real_type code)
1074{
1075 unsigned int i;
0ba38529 1076 unsigned int r_type = (unsigned int) -1;
0f64bb02 1077
0ba38529 1078 for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); i--;)
0f64bb02
CM
1079 if (bfin_reloc_map[i].bfd_reloc_val == code)
1080 r_type = bfin_reloc_map[i].bfin_reloc_val;
1081
0ba38529 1082 if (r_type <= BFIN_RELOC_MAX)
0f64bb02
CM
1083 return &bfin_howto_table [r_type];
1084
0f64bb02
CM
1085 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1086 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1087
1088 return (reloc_howto_type *) NULL;
157090f7 1089}
0f64bb02 1090
157090f7
AM
1091static reloc_howto_type *
1092bfin_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1093 const char *r_name)
1094{
1095 unsigned int i;
1096
1097 for (i = 0;
1098 i < (sizeof (bfin_howto_table)
1099 / sizeof (bfin_howto_table[0]));
1100 i++)
1101 if (bfin_howto_table[i].name != NULL
1102 && strcasecmp (bfin_howto_table[i].name, r_name) == 0)
1103 return &bfin_howto_table[i];
1104
1105 for (i = 0;
1106 i < (sizeof (bfin_gnuext_howto_table)
1107 / sizeof (bfin_gnuext_howto_table[0]));
1108 i++)
1109 if (bfin_gnuext_howto_table[i].name != NULL
1110 && strcasecmp (bfin_gnuext_howto_table[i].name, r_name) == 0)
1111 return &bfin_gnuext_howto_table[i];
1112
1113 return NULL;
0f64bb02 1114}
157090f7 1115
0f64bb02
CM
1116/* Given a bfin relocation type, return the howto. */
1117static reloc_howto_type *
1118bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
2c3fc389 1119 unsigned int r_type)
0f64bb02
CM
1120{
1121 if (r_type <= BFIN_RELOC_MAX)
1122 return &bfin_howto_table [r_type];
1123
0f64bb02
CM
1124 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1125 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1126
1127 return (reloc_howto_type *) NULL;
0f64bb02
CM
1128}
1129
781303ce
MF
1130/* Set by ld emulation if --code-in-l1. */
1131bfd_boolean elf32_bfin_code_in_l1 = 0;
1132
1133/* Set by ld emulation if --data-in-l1. */
1134bfd_boolean elf32_bfin_data_in_l1 = 0;
1135
cc364be6
AM
1136static bfd_boolean
1137elf32_bfin_final_write_processing (bfd *abfd)
781303ce
MF
1138{
1139 if (elf32_bfin_code_in_l1)
1140 elf_elfheader (abfd)->e_flags |= EF_BFIN_CODE_IN_L1;
1141 if (elf32_bfin_data_in_l1)
1142 elf_elfheader (abfd)->e_flags |= EF_BFIN_DATA_IN_L1;
cc364be6 1143 return _bfd_elf_final_write_processing (abfd);
781303ce
MF
1144}
1145
0f64bb02
CM
1146/* Return TRUE if the name is a local label.
1147 bfin local labels begin with L$. */
1148static bfd_boolean
2c3fc389 1149bfin_is_local_label_name (bfd *abfd, const char *label)
0f64bb02
CM
1150{
1151 if (label[0] == 'L' && label[1] == '$' )
1152 return TRUE;
1153
1154 return _bfd_elf_is_local_label_name (abfd, label);
1155}
c96a8570
BS
1156\f
1157/* Look through the relocs for a section during the first phase, and
1158 allocate space in the global offset table or procedure linkage
1159 table. */
0f64bb02 1160
c96a8570
BS
1161static bfd_boolean
1162bfin_check_relocs (bfd * abfd,
1163 struct bfd_link_info *info,
1164 asection *sec,
07d6d2b8 1165 const Elf_Internal_Rela *relocs)
48d502e1 1166{
c96a8570
BS
1167 bfd *dynobj;
1168 Elf_Internal_Shdr *symtab_hdr;
1169 struct elf_link_hash_entry **sym_hashes;
1170 bfd_signed_vma *local_got_refcounts;
1171 const Elf_Internal_Rela *rel;
1172 const Elf_Internal_Rela *rel_end;
48d502e1 1173 asection *sgot;
c96a8570 1174 asection *srelgot;
2c3fc389 1175
0e1862bb 1176 if (bfd_link_relocatable (info))
c96a8570 1177 return TRUE;
48d502e1 1178
c96a8570
BS
1179 dynobj = elf_hash_table (info)->dynobj;
1180 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1181 sym_hashes = elf_sym_hashes (abfd);
1182 local_got_refcounts = elf_local_got_refcounts (abfd);
48d502e1 1183
c96a8570
BS
1184 sgot = NULL;
1185 srelgot = NULL;
48d502e1 1186
c96a8570
BS
1187 rel_end = relocs + sec->reloc_count;
1188 for (rel = relocs; rel < rel_end; rel++)
48d502e1 1189 {
c96a8570
BS
1190 unsigned long r_symndx;
1191 struct elf_link_hash_entry *h;
48d502e1 1192
c96a8570
BS
1193 r_symndx = ELF32_R_SYM (rel->r_info);
1194 if (r_symndx < symtab_hdr->sh_info)
1195 h = NULL;
1196 else
81fbe831
AM
1197 {
1198 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
81fbe831 1199 }
48d502e1 1200
c96a8570
BS
1201 switch (ELF32_R_TYPE (rel->r_info))
1202 {
1203 /* This relocation describes the C++ object vtable hierarchy.
07d6d2b8
AM
1204 Reconstruct it for later use during GC. */
1205 case R_BFIN_GNU_VTINHERIT:
1206 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1207 return FALSE;
1208 break;
1209
1210 /* This relocation describes which C++ vtable entries
1211 are actually used. Record for later use during GC. */
1212 case R_BFIN_GNU_VTENTRY:
a0ea3a14 1213 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
07d6d2b8
AM
1214 return FALSE;
1215 break;
48d502e1 1216
cb88ce9f 1217 case R_BFIN_GOT:
c96a8570
BS
1218 if (h != NULL
1219 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1220 break;
1221 /* Fall through. */
48d502e1 1222
c96a8570
BS
1223 if (dynobj == NULL)
1224 {
1225 /* Create the .got section. */
1226 elf_hash_table (info)->dynobj = dynobj = abfd;
1227 if (!_bfd_elf_create_got_section (dynobj, info))
1228 return FALSE;
1229 }
48d502e1 1230
ce558b89
AM
1231 sgot = elf_hash_table (info)->sgot;
1232 srelgot = elf_hash_table (info)->srelgot;
1233 BFD_ASSERT (sgot != NULL);
48d502e1 1234
c96a8570
BS
1235 if (h != NULL)
1236 {
1237 if (h->got.refcount == 0)
1238 {
1239 /* Make sure this symbol is output as a dynamic symbol. */
1240 if (h->dynindx == -1 && !h->forced_local)
1241 {
1242 if (!bfd_elf_link_record_dynamic_symbol (info, h))
1243 return FALSE;
1244 }
48d502e1 1245
c96a8570
BS
1246 /* Allocate space in the .got section. */
1247 sgot->size += 4;
1248 /* Allocate relocation space. */
1249 srelgot->size += sizeof (Elf32_External_Rela);
1250 }
1251 h->got.refcount++;
1252 }
1253 else
1254 {
1255 /* This is a global offset table entry for a local symbol. */
1256 if (local_got_refcounts == NULL)
1257 {
1258 bfd_size_type size;
48d502e1 1259
c96a8570
BS
1260 size = symtab_hdr->sh_info;
1261 size *= sizeof (bfd_signed_vma);
1262 local_got_refcounts = ((bfd_signed_vma *)
1263 bfd_zalloc (abfd, size));
1264 if (local_got_refcounts == NULL)
1265 return FALSE;
1266 elf_local_got_refcounts (abfd) = local_got_refcounts;
1267 }
1268 if (local_got_refcounts[r_symndx] == 0)
1269 {
1270 sgot->size += 4;
0e1862bb 1271 if (bfd_link_pic (info))
c96a8570
BS
1272 {
1273 /* If we are generating a shared object, we need to
07d6d2b8
AM
1274 output a R_68K_RELATIVE reloc so that the dynamic
1275 linker can adjust this GOT entry. */
c96a8570
BS
1276 srelgot->size += sizeof (Elf32_External_Rela);
1277 }
1278 }
1279 local_got_refcounts[r_symndx]++;
1280 }
1281 break;
48d502e1 1282
c96a8570
BS
1283 default:
1284 break;
1285 }
1286 }
1287
1288 return TRUE;
48d502e1
BS
1289}
1290
c96a8570 1291static enum elf_reloc_type_class
7e612e98
AM
1292elf32_bfin_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1293 const asection *rel_sec ATTRIBUTE_UNUSED,
1294 const Elf_Internal_Rela * rela)
48d502e1 1295{
c96a8570
BS
1296 switch ((int) ELF32_R_TYPE (rela->r_info))
1297 {
1298 default:
1299 return reloc_class_normal;
1300 }
1301}
1302\f
1303static bfd_reloc_status_type
1304bfin_final_link_relocate (Elf_Internal_Rela *rel, reloc_howto_type *howto,
1305 bfd *input_bfd, asection *input_section,
1306 bfd_byte *contents, bfd_vma address,
1307 bfd_vma value, bfd_vma addend)
1308{
1309 int r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 1310
cb88ce9f 1311 if (r_type == R_BFIN_PCREL24 || r_type == R_BFIN_PCREL24_JUMP_L)
c96a8570
BS
1312 {
1313 bfd_reloc_status_type r = bfd_reloc_ok;
1314 bfd_vma x;
48d502e1 1315
c96a8570
BS
1316 if (address > bfd_get_section_limit (input_bfd, input_section))
1317 return bfd_reloc_outofrange;
48d502e1 1318
c96a8570 1319 value += addend;
48d502e1 1320
c96a8570
BS
1321 /* Perform usual pc-relative correction. */
1322 value -= input_section->output_section->vma + input_section->output_offset;
1323 value -= address;
48d502e1 1324
c96a8570
BS
1325 /* We are getting reloc_entry->address 2 byte off from
1326 the start of instruction. Assuming absolute postion
1327 of the reloc data. But, following code had been written assuming
1328 reloc address is starting at begining of instruction.
1329 To compensate that I have increased the value of
1330 relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
48d502e1 1331
c96a8570
BS
1332 value += 2;
1333 address -= 2;
48d502e1 1334
c96a8570
BS
1335 if ((value & 0xFF000000) != 0
1336 && (value & 0xFF000000) != 0xFF000000)
1337 r = bfd_reloc_overflow;
48d502e1 1338
c96a8570 1339 value >>= 1;
48d502e1 1340
c96a8570
BS
1341 x = bfd_get_16 (input_bfd, contents + address);
1342 x = (x & 0xff00) | ((value >> 16) & 0xff);
1343 bfd_put_16 (input_bfd, x, contents + address);
48d502e1 1344
c96a8570
BS
1345 x = bfd_get_16 (input_bfd, contents + address + 2);
1346 x = value & 0xFFFF;
1347 bfd_put_16 (input_bfd, x, contents + address + 2);
1348 return r;
1349 }
48d502e1 1350
c96a8570
BS
1351 return _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1352 rel->r_offset, value, addend);
48d502e1 1353
48d502e1
BS
1354}
1355
c96a8570
BS
1356static bfd_boolean
1357bfin_relocate_section (bfd * output_bfd,
1358 struct bfd_link_info *info,
1359 bfd * input_bfd,
1360 asection * input_section,
1361 bfd_byte * contents,
1362 Elf_Internal_Rela * relocs,
1363 Elf_Internal_Sym * local_syms,
1364 asection ** local_sections)
48d502e1 1365{
c96a8570
BS
1366 bfd *dynobj;
1367 Elf_Internal_Shdr *symtab_hdr;
1368 struct elf_link_hash_entry **sym_hashes;
1369 bfd_vma *local_got_offsets;
1370 asection *sgot;
c96a8570
BS
1371 Elf_Internal_Rela *rel;
1372 Elf_Internal_Rela *relend;
1373 int i = 0;
48d502e1 1374
c96a8570
BS
1375 dynobj = elf_hash_table (info)->dynobj;
1376 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1377 sym_hashes = elf_sym_hashes (input_bfd);
1378 local_got_offsets = elf_local_got_offsets (input_bfd);
48d502e1 1379
c96a8570 1380 sgot = NULL;
48d502e1 1381
c96a8570
BS
1382 rel = relocs;
1383 relend = relocs + input_section->reloc_count;
1384 for (; rel < relend; rel++, i++)
1385 {
1386 int r_type;
1387 reloc_howto_type *howto;
1388 unsigned long r_symndx;
1389 struct elf_link_hash_entry *h;
1390 Elf_Internal_Sym *sym;
1391 asection *sec;
1392 bfd_vma relocation = 0;
1393 bfd_boolean unresolved_reloc;
1394 bfd_reloc_status_type r;
1395 bfd_vma address;
48d502e1 1396
c96a8570
BS
1397 r_type = ELF32_R_TYPE (rel->r_info);
1398 if (r_type < 0 || r_type >= 243)
1399 {
1400 bfd_set_error (bfd_error_bad_value);
1401 return FALSE;
1402 }
48d502e1 1403
c96a8570 1404 if (r_type == R_BFIN_GNU_VTENTRY
07d6d2b8 1405 || r_type == R_BFIN_GNU_VTINHERIT)
c96a8570 1406 continue;
48d502e1 1407
c96a8570
BS
1408 howto = bfin_reloc_type_lookup (input_bfd, r_type);
1409 if (howto == NULL)
1410 {
1411 bfd_set_error (bfd_error_bad_value);
1412 return FALSE;
1413 }
1414 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1 1415
c96a8570
BS
1416 h = NULL;
1417 sym = NULL;
1418 sec = NULL;
1419 unresolved_reloc = FALSE;
48d502e1 1420
c96a8570
BS
1421 if (r_symndx < symtab_hdr->sh_info)
1422 {
1423 sym = local_syms + r_symndx;
1424 sec = local_sections[r_symndx];
1425 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1426 }
1427 else
1428 {
62d887d4 1429 bfd_boolean warned, ignored;
48d502e1 1430
c96a8570
BS
1431 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1432 r_symndx, symtab_hdr, sym_hashes,
1433 h, sec, relocation,
62d887d4 1434 unresolved_reloc, warned, ignored);
c96a8570 1435 }
48d502e1 1436
dbaa2011 1437 if (sec != NULL && discarded_section (sec))
e4067dbb 1438 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 1439 rel, 1, relend, howto, 0, contents);
48d502e1 1440
0e1862bb 1441 if (bfd_link_relocatable (info))
c96a8570 1442 continue;
48d502e1 1443
c96a8570 1444 address = rel->r_offset;
48d502e1 1445
c96a8570
BS
1446 /* Then, process normally. */
1447 switch (r_type)
1448 {
1449 case R_BFIN_GNU_VTINHERIT:
1450 case R_BFIN_GNU_VTENTRY:
1451 return bfd_reloc_ok;
48d502e1 1452
cb88ce9f 1453 case R_BFIN_GOT:
c96a8570
BS
1454 /* Relocation is to the address of the entry for this symbol
1455 in the global offset table. */
1456 if (h != NULL
1457 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1458 goto do_default;
1459 /* Fall through. */
1460 /* Relocation is the offset of the entry for this symbol in
1461 the global offset table. */
48d502e1 1462
c96a8570
BS
1463 {
1464 bfd_vma off;
48d502e1 1465
ce558b89 1466 if (dynobj == NULL)
c96a8570 1467 {
ce558b89
AM
1468 /* Create the .got section. */
1469 elf_hash_table (info)->dynobj = dynobj = output_bfd;
1470 if (!_bfd_elf_create_got_section (dynobj, info))
1471 return FALSE;
c96a8570 1472 }
48d502e1 1473
ce558b89
AM
1474 sgot = elf_hash_table (info)->sgot;
1475 BFD_ASSERT (sgot != NULL);
1476
c96a8570
BS
1477 if (h != NULL)
1478 {
1479 bfd_boolean dyn;
48d502e1 1480
c96a8570
BS
1481 off = h->got.offset;
1482 BFD_ASSERT (off != (bfd_vma) - 1);
1483 dyn = elf_hash_table (info)->dynamic_sections_created;
48d502e1 1484
0e1862bb
L
1485 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
1486 bfd_link_pic (info),
1487 h)
1488 || (bfd_link_pic (info)
c96a8570
BS
1489 && (info->symbolic
1490 || h->dynindx == -1
1491 || h->forced_local)
1492 && h->def_regular))
1493 {
1494 /* This is actually a static link, or it is a
1495 -Bsymbolic link and the symbol is defined
1496 locally, or the symbol was forced to be local
1497 because of a version file.. We must initialize
1498 this entry in the global offset table. Since
1499 the offset must always be a multiple of 4, we
1500 use the least significant bit to record whether
1501 we have initialized it already.
48d502e1 1502
c96a8570
BS
1503 When doing a dynamic link, we create a .rela.got
1504 relocation entry to initialize the value. This
1505 is done in the finish_dynamic_symbol routine. */
1506 if ((off & 1) != 0)
1507 off &= ~1;
1508 else
1509 {
1510 bfd_put_32 (output_bfd, relocation,
1511 sgot->contents + off);
1512 h->got.offset |= 1;
1513 }
1514 }
1515 else
1516 unresolved_reloc = FALSE;
1517 }
1518 else
1519 {
1520 BFD_ASSERT (local_got_offsets != NULL);
1521 off = local_got_offsets[r_symndx];
1522 BFD_ASSERT (off != (bfd_vma) - 1);
48d502e1 1523
c96a8570
BS
1524 /* The offset must always be a multiple of 4. We use
1525 the least significant bit to record whether we have
1526 already generated the necessary reloc. */
1527 if ((off & 1) != 0)
1528 off &= ~1;
1529 else
1530 {
1531 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
48d502e1 1532
0e1862bb 1533 if (bfd_link_pic (info))
c96a8570
BS
1534 {
1535 asection *s;
1536 Elf_Internal_Rela outrel;
1537 bfd_byte *loc;
48d502e1 1538
ce558b89 1539 s = elf_hash_table (info)->srelgot;
c96a8570 1540 BFD_ASSERT (s != NULL);
48d502e1 1541
c96a8570
BS
1542 outrel.r_offset = (sgot->output_section->vma
1543 + sgot->output_offset + off);
1544 outrel.r_info =
cb88ce9f 1545 ELF32_R_INFO (0, R_BFIN_PCREL24);
c96a8570
BS
1546 outrel.r_addend = relocation;
1547 loc = s->contents;
1548 loc +=
1549 s->reloc_count++ * sizeof (Elf32_External_Rela);
1550 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1551 }
48d502e1 1552
c96a8570
BS
1553 local_got_offsets[r_symndx] |= 1;
1554 }
1555 }
48d502e1 1556
c96a8570
BS
1557 relocation = sgot->output_offset + off;
1558 rel->r_addend = 0;
07d6d2b8
AM
1559 /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */
1560 relocation /= 4;
c96a8570
BS
1561 }
1562 goto do_default;
1563
1564 default:
1565 do_default:
1566 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
1567 contents, address,
1568 relocation, rel->r_addend);
1569
1570 break;
48d502e1
BS
1571 }
1572
c96a8570 1573 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
07d6d2b8
AM
1574 because such sections are not SEC_ALLOC and thus ld.so will
1575 not process them. */
c96a8570 1576 if (unresolved_reloc
1d5316ab
AM
1577 && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic)
1578 && _bfd_elf_section_offset (output_bfd, info, input_section,
1579 rel->r_offset) != (bfd_vma) -1)
48d502e1 1580 {
4eca0228 1581 _bfd_error_handler
695344c0 1582 /* xgettext:c-format */
2dcf00ce
AM
1583 (_("%pB(%pA+%#" PRIx64 "): "
1584 "unresolvable relocation against symbol `%s'"),
1585 input_bfd, input_section, (uint64_t) rel->r_offset,
1586 h->root.root.string);
c96a8570 1587 return FALSE;
48d502e1 1588 }
48d502e1 1589
c96a8570 1590 if (r != bfd_reloc_ok)
48d502e1 1591 {
c96a8570
BS
1592 const char *name;
1593
1594 if (h != NULL)
1595 name = h->root.root.string;
1596 else
48d502e1 1597 {
c96a8570
BS
1598 name = bfd_elf_string_from_elf_section (input_bfd,
1599 symtab_hdr->sh_link,
1600 sym->st_name);
1601 if (name == NULL)
1602 return FALSE;
1603 if (*name == '\0')
1604 name = bfd_section_name (input_bfd, sec);
48d502e1 1605 }
c96a8570
BS
1606
1607 if (r == bfd_reloc_overflow)
1a72702b
AM
1608 (*info->callbacks->reloc_overflow)
1609 (info, (h ? &h->root : NULL), name, howto->name,
1610 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
48d502e1
BS
1611 else
1612 {
4eca0228 1613 _bfd_error_handler
695344c0 1614 /* xgettext:c-format */
2dcf00ce
AM
1615 (_("%pB(%pA+%#" PRIx64 "): reloc against `%s': error %d"),
1616 input_bfd, input_section, (uint64_t) rel->r_offset,
1617 name, (int) r);
c96a8570 1618 return FALSE;
48d502e1 1619 }
48d502e1 1620 }
48d502e1
BS
1621 }
1622
c96a8570
BS
1623 return TRUE;
1624}
48d502e1 1625
c96a8570
BS
1626static asection *
1627bfin_gc_mark_hook (asection * sec,
1628 struct bfd_link_info *info,
1629 Elf_Internal_Rela * rel,
1630 struct elf_link_hash_entry *h,
07d6d2b8 1631 Elf_Internal_Sym * sym)
c96a8570
BS
1632{
1633 if (h != NULL)
1634 switch (ELF32_R_TYPE (rel->r_info))
1635 {
1636 case R_BFIN_GNU_VTINHERIT:
1637 case R_BFIN_GNU_VTENTRY:
1638 return NULL;
1639 }
48d502e1 1640
c96a8570
BS
1641 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1642}
c96a8570 1643\f
6d00b590
AM
1644extern const bfd_target bfin_elf32_fdpic_vec;
1645#define IS_FDPIC(bfd) ((bfd)->xvec == &bfin_elf32_fdpic_vec)
0f64bb02 1646
4dfe6ac6
NC
1647/* An extension of the elf hash table data structure,
1648 containing some additional Blackfin-specific data. */
c96a8570 1649struct bfinfdpic_elf_link_hash_table
c35e54f4 1650{
c96a8570 1651 struct elf_link_hash_table elf;
c35e54f4 1652
c96a8570
BS
1653 /* A pointer to the .rofixup section. */
1654 asection *sgotfixup;
c96a8570
BS
1655 /* GOT base offset. */
1656 bfd_vma got0;
1657 /* Location of the first non-lazy PLT entry, i.e., the number of
1658 bytes taken by lazy PLT entries. */
1659 bfd_vma plt0;
1660 /* A hash table holding information about which symbols were
1661 referenced with which PIC-related relocations. */
1662 struct htab *relocs_info;
6a9adeca
BS
1663 /* Summary reloc information collected by
1664 _bfinfdpic_count_got_plt_entries. */
1665 struct _bfinfdpic_dynamic_got_info *g;
c96a8570 1666};
c35e54f4 1667
c96a8570 1668/* Get the Blackfin ELF linker hash table from a link_info structure. */
c35e54f4 1669
c96a8570 1670#define bfinfdpic_hash_table(info) \
4dfe6ac6
NC
1671 (elf_hash_table_id ((struct elf_link_hash_table *) ((info)->hash)) \
1672 == BFIN_ELF_DATA ? ((struct bfinfdpic_elf_link_hash_table *) ((info)->hash)) : NULL)
c35e54f4 1673
c96a8570 1674#define bfinfdpic_got_section(info) \
ce558b89 1675 (bfinfdpic_hash_table (info)->elf.sgot)
c96a8570 1676#define bfinfdpic_gotrel_section(info) \
ce558b89 1677 (bfinfdpic_hash_table (info)->elf.srelgot)
c96a8570
BS
1678#define bfinfdpic_gotfixup_section(info) \
1679 (bfinfdpic_hash_table (info)->sgotfixup)
1680#define bfinfdpic_plt_section(info) \
ce558b89 1681 (bfinfdpic_hash_table (info)->elf.splt)
c96a8570 1682#define bfinfdpic_pltrel_section(info) \
ce558b89 1683 (bfinfdpic_hash_table (info)->elf.srelplt)
c96a8570
BS
1684#define bfinfdpic_relocs_info(info) \
1685 (bfinfdpic_hash_table (info)->relocs_info)
1686#define bfinfdpic_got_initial_offset(info) \
1687 (bfinfdpic_hash_table (info)->got0)
1688#define bfinfdpic_plt_initial_offset(info) \
1689 (bfinfdpic_hash_table (info)->plt0)
6a9adeca
BS
1690#define bfinfdpic_dynamic_got_plt_info(info) \
1691 (bfinfdpic_hash_table (info)->g)
c35e54f4 1692
c96a8570
BS
1693/* The name of the dynamic interpreter. This is put in the .interp
1694 section. */
c35e54f4 1695
c96a8570 1696#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
c35e54f4 1697
c96a8570 1698#define DEFAULT_STACK_SIZE 0x20000
c35e54f4 1699
c96a8570
BS
1700/* This structure is used to collect the number of entries present in
1701 each addressable range of the got. */
1702struct _bfinfdpic_dynamic_got_info
1703{
1704 /* Several bits of information about the current link. */
1705 struct bfd_link_info *info;
1706 /* Total size needed for GOT entries within the 18- or 32-bit
1707 ranges. */
1708 bfd_vma got17m4, gothilo;
1709 /* Total size needed for function descriptor entries within the 18-
1710 or 32-bit ranges. */
1711 bfd_vma fd17m4, fdhilo;
1712 /* Total size needed function descriptor entries referenced in PLT
1713 entries, that would be profitable to place in offsets close to
1714 the PIC register. */
1715 bfd_vma fdplt;
1716 /* Total size needed by lazy PLT entries. */
1717 bfd_vma lzplt;
1718 /* Number of relocations carried over from input object files. */
1719 unsigned long relocs;
1720 /* Number of fixups introduced by relocations in input object files. */
1721 unsigned long fixups;
1722};
c35e54f4 1723
c96a8570 1724/* Create a Blackfin ELF linker hash table. */
c35e54f4 1725
c96a8570
BS
1726static struct bfd_link_hash_table *
1727bfinfdpic_elf_link_hash_table_create (bfd *abfd)
1728{
1729 struct bfinfdpic_elf_link_hash_table *ret;
1730 bfd_size_type amt = sizeof (struct bfinfdpic_elf_link_hash_table);
c35e54f4 1731
22cdc249 1732 ret = bfd_zmalloc (amt);
c96a8570
BS
1733 if (ret == NULL)
1734 return NULL;
c35e54f4 1735
c96a8570
BS
1736 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1737 _bfd_elf_link_hash_newfunc,
4dfe6ac6
NC
1738 sizeof (struct elf_link_hash_entry),
1739 BFIN_ELF_DATA))
c96a8570
BS
1740 {
1741 free (ret);
1742 return NULL;
1743 }
c35e54f4 1744
c96a8570
BS
1745 return &ret->elf.root;
1746}
48d502e1 1747
c96a8570
BS
1748/* Decide whether a reference to a symbol can be resolved locally or
1749 not. If the symbol is protected, we want the local address, but
1750 its function descriptor must be assigned by the dynamic linker. */
1751#define BFINFDPIC_SYM_LOCAL(INFO, H) \
1752 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1753 || ! elf_hash_table (INFO)->dynamic_sections_created)
1754#define BFINFDPIC_FUNCDESC_LOCAL(INFO, H) \
1755 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
48d502e1 1756
c96a8570
BS
1757/* This structure collects information on what kind of GOT, PLT or
1758 function descriptors are required by relocations that reference a
1759 certain symbol. */
1760struct bfinfdpic_relocs_info
1761{
1762 /* The index of the symbol, as stored in the relocation r_info, if
1763 we have a local symbol; -1 otherwise. */
1764 long symndx;
1765 union
1766 {
1767 /* The input bfd in which the symbol is defined, if it's a local
1768 symbol. */
1769 bfd *abfd;
1770 /* If symndx == -1, the hash table entry corresponding to a global
1771 symbol (even if it turns out to bind locally, in which case it
1772 should ideally be replaced with section's symndx + addend). */
1773 struct elf_link_hash_entry *h;
1774 } d;
1775 /* The addend of the relocation that references the symbol. */
1776 bfd_vma addend;
48d502e1 1777
c96a8570
BS
1778 /* The fields above are used to identify an entry. The fields below
1779 contain information on how an entry is used and, later on, which
1780 locations it was assigned. */
1781 /* The following 2 fields record whether the symbol+addend above was
1782 ever referenced with a GOT relocation. The 17M4 suffix indicates a
1783 GOT17M4 relocation; hilo is used for GOTLO/GOTHI pairs. */
1784 unsigned got17m4;
1785 unsigned gothilo;
1786 /* Whether a FUNCDESC relocation references symbol+addend. */
1787 unsigned fd;
1788 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1789 unsigned fdgot17m4;
1790 unsigned fdgothilo;
1791 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1792 unsigned fdgoff17m4;
1793 unsigned fdgoffhilo;
1794 /* Whether symbol+addend is referenced with GOTOFF17M4, GOTOFFLO or
1795 GOTOFFHI relocations. The addend doesn't really matter, since we
1796 envision that this will only be used to check whether the symbol
1797 is mapped to the same segment as the got. */
1798 unsigned gotoff;
1799 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1800 unsigned call;
1801 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1802 relocation. */
1803 unsigned sym;
1804 /* Whether we need a PLT entry for a symbol. Should be implied by
1805 something like:
1806 (call && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)) */
1807 unsigned plt:1;
1808 /* Whether a function descriptor should be created in this link unit
1809 for symbol+addend. Should be implied by something like:
1810 (plt || fdgotoff17m4 || fdgotofflohi
1811 || ((fd || fdgot17m4 || fdgothilo)
07d6d2b8 1812 && (symndx != -1 || BFINFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
c96a8570
BS
1813 unsigned privfd:1;
1814 /* Whether a lazy PLT entry is needed for this symbol+addend.
1815 Should be implied by something like:
1816 (privfd && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)
1817 && ! (info->flags & DF_BIND_NOW)) */
1818 unsigned lazyplt:1;
1819 /* Whether we've already emitted GOT relocations and PLT entries as
1820 needed for this symbol. */
1821 unsigned done:1;
48d502e1 1822
cb88ce9f 1823 /* The number of R_BFIN_BYTE4_DATA, R_BFIN_FUNCDESC and R_BFIN_FUNCDESC_VALUE
c96a8570
BS
1824 relocations referencing the symbol. */
1825 unsigned relocs32, relocsfd, relocsfdv;
48d502e1 1826
c96a8570
BS
1827 /* The number of .rofixups entries and dynamic relocations allocated
1828 for this symbol, minus any that might have already been used. */
1829 unsigned fixups, dynrelocs;
48d502e1 1830
c96a8570
BS
1831 /* The offsets of the GOT entries assigned to symbol+addend, to the
1832 function descriptor's address, and to a function descriptor,
1833 respectively. Should be zero if unassigned. The offsets are
1834 counted from the value that will be assigned to the PIC register,
1835 not from the beginning of the .got section. */
1836 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1837 /* The offsets of the PLT entries assigned to symbol+addend,
1838 non-lazy and lazy, respectively. If unassigned, should be
1839 (bfd_vma)-1. */
1840 bfd_vma plt_entry, lzplt_entry;
1841};
48d502e1 1842
c96a8570
BS
1843/* Compute a hash with the key fields of an bfinfdpic_relocs_info entry. */
1844static hashval_t
1845bfinfdpic_relocs_info_hash (const void *entry_)
1846{
1847 const struct bfinfdpic_relocs_info *entry = entry_;
48d502e1 1848
c96a8570
BS
1849 return (entry->symndx == -1
1850 ? (long) entry->d.h->root.root.hash
1851 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1852}
f4707595 1853
c96a8570
BS
1854/* Test whether the key fields of two bfinfdpic_relocs_info entries are
1855 identical. */
1856static int
1857bfinfdpic_relocs_info_eq (const void *entry1, const void *entry2)
0f64bb02 1858{
c96a8570
BS
1859 const struct bfinfdpic_relocs_info *e1 = entry1;
1860 const struct bfinfdpic_relocs_info *e2 = entry2;
0f64bb02 1861
c96a8570
BS
1862 return e1->symndx == e2->symndx && e1->addend == e2->addend
1863 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1864}
48d502e1 1865
c96a8570
BS
1866/* Find or create an entry in a hash table HT that matches the key
1867 fields of the given ENTRY. If it's not found, memory for a new
1868 entry is allocated in ABFD's obstack. */
1869static struct bfinfdpic_relocs_info *
1870bfinfdpic_relocs_info_find (struct htab *ht,
1871 bfd *abfd,
1872 const struct bfinfdpic_relocs_info *entry,
1873 enum insert_option insert)
1874{
83fd9437
JZ
1875 struct bfinfdpic_relocs_info **loc;
1876
1877 if (!ht)
1878 return NULL;
1879
1880 loc = (struct bfinfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
0f64bb02 1881
c96a8570
BS
1882 if (! loc)
1883 return NULL;
0f64bb02 1884
c96a8570
BS
1885 if (*loc)
1886 return *loc;
0f64bb02 1887
c96a8570 1888 *loc = bfd_zalloc (abfd, sizeof (**loc));
0f64bb02 1889
c96a8570
BS
1890 if (! *loc)
1891 return *loc;
0f64bb02 1892
c96a8570
BS
1893 (*loc)->symndx = entry->symndx;
1894 (*loc)->d = entry->d;
1895 (*loc)->addend = entry->addend;
1896 (*loc)->plt_entry = (bfd_vma)-1;
1897 (*loc)->lzplt_entry = (bfd_vma)-1;
0f64bb02 1898
c96a8570
BS
1899 return *loc;
1900}
48d502e1 1901
c96a8570
BS
1902/* Obtain the address of the entry in HT associated with H's symbol +
1903 addend, creating a new entry if none existed. ABFD is only used
1904 for memory allocation purposes. */
1905inline static struct bfinfdpic_relocs_info *
1906bfinfdpic_relocs_info_for_global (struct htab *ht,
2c3fc389
NC
1907 bfd *abfd,
1908 struct elf_link_hash_entry *h,
1909 bfd_vma addend,
1910 enum insert_option insert)
c96a8570
BS
1911{
1912 struct bfinfdpic_relocs_info entry;
0f64bb02 1913
c96a8570
BS
1914 entry.symndx = -1;
1915 entry.d.h = h;
1916 entry.addend = addend;
f4707595 1917
c96a8570
BS
1918 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
1919}
48d502e1 1920
c96a8570
BS
1921/* Obtain the address of the entry in HT associated with the SYMNDXth
1922 local symbol of the input bfd ABFD, plus the addend, creating a new
1923 entry if none existed. */
1924inline static struct bfinfdpic_relocs_info *
1925bfinfdpic_relocs_info_for_local (struct htab *ht,
1926 bfd *abfd,
1927 long symndx,
1928 bfd_vma addend,
1929 enum insert_option insert)
1930{
1931 struct bfinfdpic_relocs_info entry;
ab96bf03 1932
c96a8570
BS
1933 entry.symndx = symndx;
1934 entry.d.abfd = abfd;
1935 entry.addend = addend;
48d502e1 1936
c96a8570
BS
1937 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
1938}
48d502e1 1939
c96a8570
BS
1940/* Merge fields set by check_relocs() of two entries that end up being
1941 mapped to the same (presumably global) symbol. */
0f64bb02 1942
c96a8570
BS
1943inline static void
1944bfinfdpic_pic_merge_early_relocs_info (struct bfinfdpic_relocs_info *e2,
2c3fc389 1945 struct bfinfdpic_relocs_info const *e1)
c96a8570
BS
1946{
1947 e2->got17m4 |= e1->got17m4;
1948 e2->gothilo |= e1->gothilo;
1949 e2->fd |= e1->fd;
1950 e2->fdgot17m4 |= e1->fdgot17m4;
1951 e2->fdgothilo |= e1->fdgothilo;
1952 e2->fdgoff17m4 |= e1->fdgoff17m4;
1953 e2->fdgoffhilo |= e1->fdgoffhilo;
1954 e2->gotoff |= e1->gotoff;
1955 e2->call |= e1->call;
1956 e2->sym |= e1->sym;
1957}
48d502e1 1958
c96a8570
BS
1959/* Every block of 65535 lazy PLT entries shares a single call to the
1960 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1961 32767, counting from 0). All other lazy PLT entries branch to it
1962 in a single instruction. */
48d502e1 1963
c96a8570
BS
1964#define LZPLT_RESOLVER_EXTRA 10
1965#define LZPLT_NORMAL_SIZE 6
1966#define LZPLT_ENTRIES 1362
48d502e1 1967
c96a8570
BS
1968#define BFINFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) LZPLT_NORMAL_SIZE * LZPLT_ENTRIES + LZPLT_RESOLVER_EXTRA)
1969#define BFINFDPIC_LZPLT_RESOLV_LOC (LZPLT_NORMAL_SIZE * LZPLT_ENTRIES / 2)
48d502e1 1970
c96a8570 1971/* Add a dynamic relocation to the SRELOC section. */
48d502e1 1972
c96a8570
BS
1973inline static bfd_vma
1974_bfinfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1975 int reloc_type, long dynindx, bfd_vma addend,
1976 struct bfinfdpic_relocs_info *entry)
1977{
1978 Elf_Internal_Rela outrel;
1979 bfd_vma reloc_offset;
0f64bb02 1980
c96a8570
BS
1981 outrel.r_offset = offset;
1982 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1983 outrel.r_addend = addend;
48d502e1 1984
c96a8570
BS
1985 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1986 BFD_ASSERT (reloc_offset < sreloc->size);
1987 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1988 sreloc->contents + reloc_offset);
1989 sreloc->reloc_count++;
48d502e1 1990
c96a8570
BS
1991 /* If the entry's index is zero, this relocation was probably to a
1992 linkonce section that got discarded. We reserved a dynamic
1993 relocation, but it was for another entry than the one we got at
1994 the time of emitting the relocation. Unfortunately there's no
1995 simple way for us to catch this situation, since the relocation
1996 is cleared right before calling relocate_section, at which point
1997 we no longer know what the relocation used to point to. */
1998 if (entry->symndx)
1999 {
2000 BFD_ASSERT (entry->dynrelocs > 0);
2001 entry->dynrelocs--;
2002 }
48d502e1 2003
c96a8570
BS
2004 return reloc_offset;
2005}
0f64bb02 2006
c96a8570 2007/* Add a fixup to the ROFIXUP section. */
48d502e1 2008
c96a8570
BS
2009static bfd_vma
2010_bfinfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
2c3fc389 2011 struct bfinfdpic_relocs_info *entry)
c96a8570
BS
2012{
2013 bfd_vma fixup_offset;
8aafe8b4 2014
c96a8570
BS
2015 if (rofixup->flags & SEC_EXCLUDE)
2016 return -1;
0f64bb02 2017
c96a8570
BS
2018 fixup_offset = rofixup->reloc_count * 4;
2019 if (rofixup->contents)
2020 {
2021 BFD_ASSERT (fixup_offset < rofixup->size);
2022 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
2023 }
2024 rofixup->reloc_count++;
0f64bb02 2025
c96a8570
BS
2026 if (entry && entry->symndx)
2027 {
2028 /* See discussion about symndx == 0 in _bfinfdpic_add_dyn_reloc
2029 above. */
2030 BFD_ASSERT (entry->fixups > 0);
2031 entry->fixups--;
2032 }
f4707595 2033
c96a8570
BS
2034 return fixup_offset;
2035}
0f64bb02 2036
c96a8570
BS
2037/* Find the segment number in which OSEC, and output section, is
2038 located. */
ca889129 2039
c96a8570
BS
2040static unsigned
2041_bfinfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
2042{
2043 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
0f64bb02 2044
c96a8570
BS
2045 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
2046}
2047
2048inline static bfd_boolean
2049_bfinfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
2050{
2051 unsigned seg = _bfinfdpic_osec_to_segment (output_bfd, osec);
2052
2053 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
2054}
2055
2056/* Generate relocations for GOT entries, function descriptors, and
2057 code for PLT and lazy PLT entries. */
2058
2059inline static bfd_boolean
2060_bfinfdpic_emit_got_relocs_plt_entries (struct bfinfdpic_relocs_info *entry,
2061 bfd *output_bfd,
2062 struct bfd_link_info *info,
2063 asection *sec,
2064 Elf_Internal_Sym *sym,
2065 bfd_vma addend)
c96a8570 2066{
2c3fc389 2067 bfd_vma fd_lazy_rel_offset = (bfd_vma) -1;
c96a8570
BS
2068 int dynindx = -1;
2069
2070 if (entry->done)
2071 return TRUE;
2072 entry->done = 1;
2073
2074 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry)
2075 {
2076 /* If the symbol is dynamic, consider it for dynamic
2077 relocations, otherwise decay to section + offset. */
2078 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
2079 dynindx = entry->d.h->dynindx;
2080 else
2081 {
6a9adeca
BS
2082 if (sec
2083 && sec->output_section
c96a8570
BS
2084 && ! bfd_is_abs_section (sec->output_section)
2085 && ! bfd_is_und_section (sec->output_section))
2086 dynindx = elf_section_data (sec->output_section)->dynindx;
2087 else
2088 dynindx = 0;
2089 }
2090 }
2091
2092 /* Generate relocation for GOT entry pointing to the symbol. */
2093 if (entry->got_entry)
2094 {
2095 int idx = dynindx;
2096 bfd_vma ad = addend;
2097
2098 /* If the symbol is dynamic but binds locally, use
2099 section+offset. */
2100 if (sec && (entry->symndx != -1
2101 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2102 {
2103 if (entry->symndx == -1)
2104 ad += entry->d.h->root.u.def.value;
2105 else
2106 ad += sym->st_value;
2107 ad += sec->output_offset;
2108 if (sec->output_section && elf_section_data (sec->output_section))
2109 idx = elf_section_data (sec->output_section)->dynindx;
2110 else
2111 idx = 0;
2112 }
2113
2114 /* If we're linking an executable at a fixed address, we can
2115 omit the dynamic relocation as long as the symbol is local to
2116 this module. */
3cbc1e5e 2117 if (bfd_link_pde (info)
c96a8570
BS
2118 && (entry->symndx != -1
2119 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2120 {
2121 if (sec)
2122 ad += sec->output_section->vma;
2123 if (entry->symndx != -1
2124 || entry->d.h->root.type != bfd_link_hash_undefweak)
2125 _bfinfdpic_add_rofixup (output_bfd,
2126 bfinfdpic_gotfixup_section (info),
2127 bfinfdpic_got_section (info)->output_section
2128 ->vma
2129 + bfinfdpic_got_section (info)->output_offset
2130 + bfinfdpic_got_initial_offset (info)
2131 + entry->got_entry, entry);
2132 }
2133 else
2134 _bfinfdpic_add_dyn_reloc (output_bfd, bfinfdpic_gotrel_section (info),
2135 _bfd_elf_section_offset
2136 (output_bfd, info,
2137 bfinfdpic_got_section (info),
2138 bfinfdpic_got_initial_offset (info)
2139 + entry->got_entry)
2140 + bfinfdpic_got_section (info)
2141 ->output_section->vma
2142 + bfinfdpic_got_section (info)->output_offset,
cb88ce9f 2143 R_BFIN_BYTE4_DATA, idx, ad, entry);
c96a8570
BS
2144
2145 bfd_put_32 (output_bfd, ad,
2146 bfinfdpic_got_section (info)->contents
2147 + bfinfdpic_got_initial_offset (info)
2148 + entry->got_entry);
2149 }
2150
2151 /* Generate relocation for GOT entry pointing to a canonical
2152 function descriptor. */
2153 if (entry->fdgot_entry)
2154 {
2155 int reloc, idx;
2156 bfd_vma ad = 0;
2157
2158 if (! (entry->symndx == -1
2159 && entry->d.h->root.type == bfd_link_hash_undefweak
2160 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2161 {
2162 /* If the symbol is dynamic and there may be dynamic symbol
2163 resolution because we are, or are linked with, a shared
2164 library, emit a FUNCDESC relocation such that the dynamic
2165 linker will allocate the function descriptor. If the
2166 symbol needs a non-local function descriptor but binds
2167 locally (e.g., its visibility is protected, emit a
2168 dynamic relocation decayed to section+offset. */
2169 if (entry->symndx == -1
2170 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
2171 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)
3cbc1e5e 2172 && !bfd_link_pde (info))
c96a8570
BS
2173 {
2174 reloc = R_BFIN_FUNCDESC;
2175 idx = elf_section_data (entry->d.h->root.u.def.section
2176 ->output_section)->dynindx;
2177 ad = entry->d.h->root.u.def.section->output_offset
2178 + entry->d.h->root.u.def.value;
2179 }
2180 else if (entry->symndx == -1
2181 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
2182 {
2183 reloc = R_BFIN_FUNCDESC;
2184 idx = dynindx;
2185 ad = addend;
2186 if (ad)
2187 return FALSE;
2188 }
2189 else
2190 {
2191 /* Otherwise, we know we have a private function descriptor,
2192 so reference it directly. */
2193 if (elf_hash_table (info)->dynamic_sections_created)
2194 BFD_ASSERT (entry->privfd);
cb88ce9f 2195 reloc = R_BFIN_BYTE4_DATA;
c96a8570
BS
2196 idx = elf_section_data (bfinfdpic_got_section (info)
2197 ->output_section)->dynindx;
2198 ad = bfinfdpic_got_section (info)->output_offset
2199 + bfinfdpic_got_initial_offset (info) + entry->fd_entry;
2200 }
2201
2202 /* If there is room for dynamic symbol resolution, emit the
2203 dynamic relocation. However, if we're linking an
2204 executable at a fixed location, we won't have emitted a
2205 dynamic symbol entry for the got section, so idx will be
2206 zero, which means we can and should compute the address
2207 of the private descriptor ourselves. */
3cbc1e5e 2208 if (bfd_link_pde (info)
c96a8570
BS
2209 && (entry->symndx != -1
2210 || BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
2211 {
2212 ad += bfinfdpic_got_section (info)->output_section->vma;
2213 _bfinfdpic_add_rofixup (output_bfd,
2214 bfinfdpic_gotfixup_section (info),
2215 bfinfdpic_got_section (info)
2216 ->output_section->vma
2217 + bfinfdpic_got_section (info)
2218 ->output_offset
2219 + bfinfdpic_got_initial_offset (info)
2220 + entry->fdgot_entry, entry);
2221 }
2222 else
2223 _bfinfdpic_add_dyn_reloc (output_bfd,
2224 bfinfdpic_gotrel_section (info),
2225 _bfd_elf_section_offset
2226 (output_bfd, info,
2227 bfinfdpic_got_section (info),
2228 bfinfdpic_got_initial_offset (info)
2229 + entry->fdgot_entry)
2230 + bfinfdpic_got_section (info)
2231 ->output_section->vma
2232 + bfinfdpic_got_section (info)
2233 ->output_offset,
2234 reloc, idx, ad, entry);
2235 }
f4707595 2236
c96a8570
BS
2237 bfd_put_32 (output_bfd, ad,
2238 bfinfdpic_got_section (info)->contents
2239 + bfinfdpic_got_initial_offset (info)
2240 + entry->fdgot_entry);
2241 }
2242
2243 /* Generate relocation to fill in a private function descriptor in
2244 the GOT. */
2245 if (entry->fd_entry)
2246 {
2247 int idx = dynindx;
2248 bfd_vma ad = addend;
2249 bfd_vma ofst;
2250 long lowword, highword;
2251
2252 /* If the symbol is dynamic but binds locally, use
2253 section+offset. */
2254 if (sec && (entry->symndx != -1
2255 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2256 {
2257 if (entry->symndx == -1)
2258 ad += entry->d.h->root.u.def.value;
2259 else
2260 ad += sym->st_value;
2261 ad += sec->output_offset;
2262 if (sec->output_section && elf_section_data (sec->output_section))
2263 idx = elf_section_data (sec->output_section)->dynindx;
2264 else
2265 idx = 0;
48d502e1 2266 }
f4707595 2267
c96a8570
BS
2268 /* If we're linking an executable at a fixed address, we can
2269 omit the dynamic relocation as long as the symbol is local to
2270 this module. */
3cbc1e5e 2271 if (bfd_link_pde (info)
c96a8570 2272 && (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
48d502e1 2273 {
c96a8570
BS
2274 if (sec)
2275 ad += sec->output_section->vma;
2276 ofst = 0;
2277 if (entry->symndx != -1
2278 || entry->d.h->root.type != bfd_link_hash_undefweak)
2279 {
2280 _bfinfdpic_add_rofixup (output_bfd,
2281 bfinfdpic_gotfixup_section (info),
2282 bfinfdpic_got_section (info)
2283 ->output_section->vma
2284 + bfinfdpic_got_section (info)
2285 ->output_offset
2286 + bfinfdpic_got_initial_offset (info)
2287 + entry->fd_entry, entry);
2288 _bfinfdpic_add_rofixup (output_bfd,
2289 bfinfdpic_gotfixup_section (info),
2290 bfinfdpic_got_section (info)
2291 ->output_section->vma
2292 + bfinfdpic_got_section (info)
2293 ->output_offset
2294 + bfinfdpic_got_initial_offset (info)
2295 + entry->fd_entry + 4, entry);
2296 }
2297 }
2298 else
2299 {
2300 ofst
2301 = _bfinfdpic_add_dyn_reloc (output_bfd,
2302 entry->lazyplt
2303 ? bfinfdpic_pltrel_section (info)
2304 : bfinfdpic_gotrel_section (info),
2305 _bfd_elf_section_offset
2306 (output_bfd, info,
2307 bfinfdpic_got_section (info),
2308 bfinfdpic_got_initial_offset (info)
2309 + entry->fd_entry)
2310 + bfinfdpic_got_section (info)
2311 ->output_section->vma
2312 + bfinfdpic_got_section (info)
2313 ->output_offset,
2314 R_BFIN_FUNCDESC_VALUE, idx, ad, entry);
48d502e1 2315 }
f4707595 2316
c96a8570
BS
2317 /* If we've omitted the dynamic relocation, just emit the fixed
2318 addresses of the symbol and of the local GOT base offset. */
3cbc1e5e 2319 if (bfd_link_pde (info)
0e1862bb
L
2320 && sec
2321 && sec->output_section)
48d502e1 2322 {
c96a8570
BS
2323 lowword = ad;
2324 highword = bfinfdpic_got_section (info)->output_section->vma
2325 + bfinfdpic_got_section (info)->output_offset
2326 + bfinfdpic_got_initial_offset (info);
2327 }
2328 else if (entry->lazyplt)
2329 {
2330 if (ad)
2331 return FALSE;
f4707595 2332
c96a8570 2333 fd_lazy_rel_offset = ofst;
f4707595 2334
c96a8570
BS
2335 /* A function descriptor used for lazy or local resolving is
2336 initialized such that its high word contains the output
2337 section index in which the PLT entries are located, and
2338 the low word contains the address of the lazy PLT entry
2339 entry point, that must be within the memory region
2340 assigned to that section. */
2341 lowword = entry->lzplt_entry + 4
2342 + bfinfdpic_plt_section (info)->output_offset
2343 + bfinfdpic_plt_section (info)->output_section->vma;
2344 highword = _bfinfdpic_osec_to_segment
2345 (output_bfd, bfinfdpic_plt_section (info)->output_section);
2346 }
2347 else
2348 {
2349 /* A function descriptor for a local function gets the index
2350 of the section. For a non-local function, it's
2351 disregarded. */
2352 lowword = ad;
6a9adeca
BS
2353 if (sec == NULL
2354 || (entry->symndx == -1 && entry->d.h->dynindx != -1
2355 && entry->d.h->dynindx == idx))
c96a8570
BS
2356 highword = 0;
2357 else
2358 highword = _bfinfdpic_osec_to_segment
2359 (output_bfd, sec->output_section);
48d502e1 2360 }
f4707595 2361
c96a8570
BS
2362 bfd_put_32 (output_bfd, lowword,
2363 bfinfdpic_got_section (info)->contents
2364 + bfinfdpic_got_initial_offset (info)
2365 + entry->fd_entry);
2366 bfd_put_32 (output_bfd, highword,
2367 bfinfdpic_got_section (info)->contents
2368 + bfinfdpic_got_initial_offset (info)
2369 + entry->fd_entry + 4);
2370 }
2371
2372 /* Generate code for the PLT entry. */
2373 if (entry->plt_entry != (bfd_vma) -1)
2374 {
2375 bfd_byte *plt_code = bfinfdpic_plt_section (info)->contents
2376 + entry->plt_entry;
2377
2378 BFD_ASSERT (entry->fd_entry);
2379
2380 /* Figure out what kind of PLT entry we need, depending on the
2381 location of the function descriptor within the GOT. */
2382 if (entry->fd_entry >= -(1 << (18 - 1))
2383 && entry->fd_entry + 4 < (1 << (18 - 1)))
48d502e1 2384 {
c96a8570
BS
2385 /* P1 = [P3 + fd_entry]; P3 = [P3 + fd_entry + 4] */
2386 bfd_put_32 (output_bfd,
2387 0xe519 | ((entry->fd_entry << 14) & 0xFFFF0000),
2388 plt_code);
2389 bfd_put_32 (output_bfd,
2390 0xe51b | (((entry->fd_entry + 4) << 14) & 0xFFFF0000),
2391 plt_code + 4);
2392 plt_code += 8;
2393 }
2394 else
2395 {
2396 /* P1.L = fd_entry; P1.H = fd_entry;
2397 P3 = P3 + P1;
2398 P1 = [P3];
2399 P3 = [P3 + 4]; */
2400 bfd_put_32 (output_bfd,
2401 0xe109 | (entry->fd_entry << 16),
2402 plt_code);
2403 bfd_put_32 (output_bfd,
2404 0xe149 | (entry->fd_entry & 0xFFFF0000),
2405 plt_code + 4);
2406 bfd_put_16 (output_bfd, 0x5ad9, plt_code + 8);
2407 bfd_put_16 (output_bfd, 0x9159, plt_code + 10);
2408 bfd_put_16 (output_bfd, 0xac5b, plt_code + 12);
2409 plt_code += 14;
2410 }
2411 /* JUMP (P1) */
2412 bfd_put_16 (output_bfd, 0x0051, plt_code);
2413 }
f4707595 2414
c96a8570
BS
2415 /* Generate code for the lazy PLT entry. */
2416 if (entry->lzplt_entry != (bfd_vma) -1)
2417 {
2418 bfd_byte *lzplt_code = bfinfdpic_plt_section (info)->contents
2419 + entry->lzplt_entry;
2420 bfd_vma resolverStub_addr;
0f64bb02 2421
c96a8570
BS
2422 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
2423 lzplt_code += 4;
0f64bb02 2424
c96a8570
BS
2425 resolverStub_addr = entry->lzplt_entry / BFINFDPIC_LZPLT_BLOCK_SIZE
2426 * BFINFDPIC_LZPLT_BLOCK_SIZE + BFINFDPIC_LZPLT_RESOLV_LOC;
2427 if (resolverStub_addr >= bfinfdpic_plt_initial_offset (info))
2428 resolverStub_addr = bfinfdpic_plt_initial_offset (info) - LZPLT_NORMAL_SIZE - LZPLT_RESOLVER_EXTRA;
0f64bb02 2429
c96a8570 2430 if (entry->lzplt_entry == resolverStub_addr)
0f64bb02 2431 {
c96a8570
BS
2432 /* This is a lazy PLT entry that includes a resolver call.
2433 P2 = [P3];
2434 R3 = [P3 + 4];
2435 JUMP (P2); */
2436 bfd_put_32 (output_bfd,
2437 0xa05b915a,
2438 lzplt_code);
2439 bfd_put_16 (output_bfd, 0x0052, lzplt_code + 4);
2440 }
2441 else
2442 {
2443 /* JUMP.S resolverStub */
2444 bfd_put_16 (output_bfd,
2445 0x2000
2446 | (((resolverStub_addr - entry->lzplt_entry)
2447 / 2) & (((bfd_vma)1 << 12) - 1)),
2448 lzplt_code);
2449 }
2450 }
0f64bb02 2451
c96a8570
BS
2452 return TRUE;
2453}
2454\f
2455/* Relocate an Blackfin ELF section.
48d502e1 2456
c96a8570
BS
2457 The RELOCATE_SECTION function is called by the new ELF backend linker
2458 to handle the relocations for a section.
48d502e1 2459
c96a8570
BS
2460 The relocs are always passed as Rela structures; if the section
2461 actually uses Rel structures, the r_addend field will always be
2462 zero.
48d502e1 2463
c96a8570
BS
2464 This function is responsible for adjusting the section contents as
2465 necessary, and (if using Rela relocs and generating a relocatable
2466 output file) adjusting the reloc addend as necessary.
48d502e1 2467
c96a8570
BS
2468 This function does not have to worry about setting the reloc
2469 address or the reloc symbol index.
48d502e1 2470
c96a8570 2471 LOCAL_SYMS is a pointer to the swapped in local symbols.
48d502e1 2472
c96a8570
BS
2473 LOCAL_SECTIONS is an array giving the section in the input file
2474 corresponding to the st_shndx field of each local symbol.
48d502e1 2475
c96a8570
BS
2476 The global hash table entry for the global symbols can be found
2477 via elf_sym_hashes (input_bfd).
48d502e1 2478
c96a8570
BS
2479 When generating relocatable output, this function must handle
2480 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2481 going to be the section symbol corresponding to the output
2482 section, which means that the addend must be adjusted
2483 accordingly. */
48d502e1
BS
2484
2485static bfd_boolean
c96a8570
BS
2486bfinfdpic_relocate_section (bfd * output_bfd,
2487 struct bfd_link_info *info,
2488 bfd * input_bfd,
2489 asection * input_section,
2490 bfd_byte * contents,
2491 Elf_Internal_Rela * relocs,
2492 Elf_Internal_Sym * local_syms,
2493 asection ** local_sections)
48d502e1 2494{
48d502e1
BS
2495 Elf_Internal_Shdr *symtab_hdr;
2496 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS
2497 Elf_Internal_Rela *rel;
2498 Elf_Internal_Rela *relend;
c96a8570
BS
2499 unsigned isec_segment, got_segment, plt_segment,
2500 check_segment[2];
0e1862bb 2501 int silence_segment_error = !bfd_link_pic (info);
48d502e1 2502
c96a8570 2503 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
48d502e1 2504 sym_hashes = elf_sym_hashes (input_bfd);
c96a8570 2505 relend = relocs + input_section->reloc_count;
48d502e1 2506
c96a8570
BS
2507 isec_segment = _bfinfdpic_osec_to_segment (output_bfd,
2508 input_section->output_section);
2509 if (IS_FDPIC (output_bfd) && bfinfdpic_got_section (info))
2510 got_segment = _bfinfdpic_osec_to_segment (output_bfd,
2511 bfinfdpic_got_section (info)
2512 ->output_section);
2513 else
2514 got_segment = -1;
2515 if (IS_FDPIC (output_bfd) && elf_hash_table (info)->dynamic_sections_created)
2516 plt_segment = _bfinfdpic_osec_to_segment (output_bfd,
2517 bfinfdpic_plt_section (info)
2518 ->output_section);
2519 else
2520 plt_segment = -1;
48d502e1 2521
c96a8570 2522 for (rel = relocs; rel < relend; rel ++)
48d502e1 2523 {
48d502e1
BS
2524 reloc_howto_type *howto;
2525 unsigned long r_symndx;
48d502e1
BS
2526 Elf_Internal_Sym *sym;
2527 asection *sec;
c96a8570
BS
2528 struct elf_link_hash_entry *h;
2529 bfd_vma relocation;
48d502e1 2530 bfd_reloc_status_type r;
c96a8570
BS
2531 const char * name = NULL;
2532 int r_type;
2533 asection *osec;
2534 struct bfinfdpic_relocs_info *picrel;
2535 bfd_vma orig_addend = rel->r_addend;
48d502e1
BS
2536
2537 r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 2538
c96a8570
BS
2539 if (r_type == R_BFIN_GNU_VTINHERIT
2540 || r_type == R_BFIN_GNU_VTENTRY)
48d502e1
BS
2541 continue;
2542
c96a8570 2543 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1
BS
2544 howto = bfin_reloc_type_lookup (input_bfd, r_type);
2545 if (howto == NULL)
2546 {
2547 bfd_set_error (bfd_error_bad_value);
2548 return FALSE;
2549 }
48d502e1 2550
c96a8570
BS
2551 h = NULL;
2552 sym = NULL;
2553 sec = NULL;
2554
2555 if (r_symndx < symtab_hdr->sh_info)
2556 {
2557 sym = local_syms + r_symndx;
2558 osec = sec = local_sections [r_symndx];
2559 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2560
2561 name = bfd_elf_string_from_elf_section
2562 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2563 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
2564 }
2565 else
2566 {
62d887d4 2567 bfd_boolean warned, ignored;
c96a8570
BS
2568 bfd_boolean unresolved_reloc;
2569
2570 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2571 r_symndx, symtab_hdr, sym_hashes,
2572 h, sec, relocation,
62d887d4 2573 unresolved_reloc, warned, ignored);
c96a8570
BS
2574 osec = sec;
2575 }
2576
dbaa2011 2577 if (sec != NULL && discarded_section (sec))
e4067dbb 2578 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2579 rel, 1, relend, howto, 0, contents);
c96a8570 2580
0e1862bb 2581 if (bfd_link_relocatable (info))
c96a8570
BS
2582 continue;
2583
2584 if (h != NULL
2585 && (h->root.type == bfd_link_hash_defined
2586 || h->root.type == bfd_link_hash_defweak)
2587 && !BFINFDPIC_SYM_LOCAL (info, h))
2588 {
2589 osec = sec = NULL;
2590 relocation = 0;
2591 }
2592
2593 switch (r_type)
2594 {
cb88ce9f
BS
2595 case R_BFIN_PCREL24:
2596 case R_BFIN_PCREL24_JUMP_L:
2597 case R_BFIN_BYTE4_DATA:
c96a8570
BS
2598 if (! IS_FDPIC (output_bfd))
2599 goto non_fdpic;
1a0670f3 2600 /* Fall through. */
c96a8570
BS
2601
2602 case R_BFIN_GOT17M4:
2603 case R_BFIN_GOTHI:
2604 case R_BFIN_GOTLO:
2605 case R_BFIN_FUNCDESC_GOT17M4:
2606 case R_BFIN_FUNCDESC_GOTHI:
2607 case R_BFIN_FUNCDESC_GOTLO:
2608 case R_BFIN_GOTOFF17M4:
2609 case R_BFIN_GOTOFFHI:
2610 case R_BFIN_GOTOFFLO:
2611 case R_BFIN_FUNCDESC_GOTOFF17M4:
2612 case R_BFIN_FUNCDESC_GOTOFFHI:
2613 case R_BFIN_FUNCDESC_GOTOFFLO:
2614 case R_BFIN_FUNCDESC:
2615 case R_BFIN_FUNCDESC_VALUE:
2616 if (h != NULL)
2617 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info
2618 (info), input_bfd, h,
2619 orig_addend, INSERT);
2620 else
2621 /* In order to find the entry we created before, we must
2622 use the original addend, not the one that may have been
2623 modified by _bfd_elf_rela_local_sym(). */
2624 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
2625 (info), input_bfd, r_symndx,
2626 orig_addend, INSERT);
2627 if (! picrel)
2628 return FALSE;
2629
2630 if (!_bfinfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2631 osec, sym,
2632 rel->r_addend))
2633 {
4eca0228 2634 _bfd_error_handler
695344c0 2635 /* xgettext:c-format */
2dcf00ce
AM
2636 (_("%pB: relocation at `%pA+%#" PRIx64 "' "
2637 "references symbol `%s' with nonzero addend"),
2638 input_bfd, input_section, (uint64_t) rel->r_offset, name);
c96a8570
BS
2639 return FALSE;
2640
2641 }
48d502e1 2642
c96a8570 2643 break;
ab96bf03 2644
c96a8570
BS
2645 default:
2646 non_fdpic:
2647 picrel = NULL;
1d5316ab
AM
2648 if (h && ! BFINFDPIC_SYM_LOCAL (info, h)
2649 && _bfd_elf_section_offset (output_bfd, info, input_section,
2650 rel->r_offset) != (bfd_vma) -1)
c96a8570
BS
2651 {
2652 info->callbacks->warning
2653 (info, _("relocation references symbol not defined in the module"),
2654 name, input_bfd, input_section, rel->r_offset);
2655 return FALSE;
2656 }
2657 break;
48d502e1
BS
2658 }
2659
c96a8570 2660 switch (r_type)
ab96bf03 2661 {
cb88ce9f
BS
2662 case R_BFIN_PCREL24:
2663 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS
2664 check_segment[0] = isec_segment;
2665 if (! IS_FDPIC (output_bfd))
2666 check_segment[1] = isec_segment;
2667 else if (picrel->plt)
2668 {
2669 relocation = bfinfdpic_plt_section (info)->output_section->vma
2670 + bfinfdpic_plt_section (info)->output_offset
2671 + picrel->plt_entry;
2672 check_segment[1] = plt_segment;
2673 }
2674 /* We don't want to warn on calls to undefined weak symbols,
2675 as calls to them must be protected by non-NULL tests
2676 anyway, and unprotected calls would invoke undefined
2677 behavior. */
2678 else if (picrel->symndx == -1
2679 && picrel->d.h->root.type == bfd_link_hash_undefweak)
2680 check_segment[1] = check_segment[0];
2681 else
2682 check_segment[1] = sec
2683 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2684 : (unsigned)-1;
2685 break;
ab96bf03 2686
c96a8570
BS
2687 case R_BFIN_GOT17M4:
2688 case R_BFIN_GOTHI:
2689 case R_BFIN_GOTLO:
2690 relocation = picrel->got_entry;
2691 check_segment[0] = check_segment[1] = got_segment;
2692 break;
ab96bf03 2693
c96a8570
BS
2694 case R_BFIN_FUNCDESC_GOT17M4:
2695 case R_BFIN_FUNCDESC_GOTHI:
2696 case R_BFIN_FUNCDESC_GOTLO:
2697 relocation = picrel->fdgot_entry;
2698 check_segment[0] = check_segment[1] = got_segment;
2699 break;
48d502e1 2700
c96a8570
BS
2701 case R_BFIN_GOTOFFHI:
2702 case R_BFIN_GOTOFF17M4:
2703 case R_BFIN_GOTOFFLO:
2704 relocation -= bfinfdpic_got_section (info)->output_section->vma
2705 + bfinfdpic_got_section (info)->output_offset
2706 + bfinfdpic_got_initial_offset (info);
2707 check_segment[0] = got_segment;
2708 check_segment[1] = sec
2709 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2710 : (unsigned)-1;
2711 break;
48d502e1 2712
c96a8570
BS
2713 case R_BFIN_FUNCDESC_GOTOFF17M4:
2714 case R_BFIN_FUNCDESC_GOTOFFHI:
2715 case R_BFIN_FUNCDESC_GOTOFFLO:
2716 relocation = picrel->fd_entry;
2717 check_segment[0] = check_segment[1] = got_segment;
2718 break;
48d502e1 2719
c96a8570 2720 case R_BFIN_FUNCDESC:
48d502e1 2721 {
c96a8570
BS
2722 int dynindx;
2723 bfd_vma addend = rel->r_addend;
48d502e1 2724
c96a8570
BS
2725 if (! (h && h->root.type == bfd_link_hash_undefweak
2726 && BFINFDPIC_SYM_LOCAL (info, h)))
2727 {
2728 /* If the symbol is dynamic and there may be dynamic
2729 symbol resolution because we are or are linked with a
2730 shared library, emit a FUNCDESC relocation such that
2731 the dynamic linker will allocate the function
2732 descriptor. If the symbol needs a non-local function
2733 descriptor but binds locally (e.g., its visibility is
2734 protected, emit a dynamic relocation decayed to
2735 section+offset. */
2736 if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h)
2737 && BFINFDPIC_SYM_LOCAL (info, h)
3cbc1e5e 2738 && !bfd_link_pde (info))
c96a8570
BS
2739 {
2740 dynindx = elf_section_data (h->root.u.def.section
2741 ->output_section)->dynindx;
2742 addend += h->root.u.def.section->output_offset
2743 + h->root.u.def.value;
2744 }
2745 else if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h))
2746 {
2747 if (addend)
2748 {
2749 info->callbacks->warning
2750 (info, _("R_BFIN_FUNCDESC references dynamic symbol with nonzero addend"),
2751 name, input_bfd, input_section, rel->r_offset);
2752 return FALSE;
2753 }
2754 dynindx = h->dynindx;
2755 }
2756 else
2757 {
2758 /* Otherwise, we know we have a private function
2759 descriptor, so reference it directly. */
2760 BFD_ASSERT (picrel->privfd);
cb88ce9f 2761 r_type = R_BFIN_BYTE4_DATA;
c96a8570
BS
2762 dynindx = elf_section_data (bfinfdpic_got_section (info)
2763 ->output_section)->dynindx;
2764 addend = bfinfdpic_got_section (info)->output_offset
2765 + bfinfdpic_got_initial_offset (info)
2766 + picrel->fd_entry;
2767 }
2768
2769 /* If there is room for dynamic symbol resolution, emit
2770 the dynamic relocation. However, if we're linking an
2771 executable at a fixed location, we won't have emitted a
2772 dynamic symbol entry for the got section, so idx will
2773 be zero, which means we can and should compute the
2774 address of the private descriptor ourselves. */
3cbc1e5e 2775 if (bfd_link_pde (info)
c96a8570
BS
2776 && (!h || BFINFDPIC_FUNCDESC_LOCAL (info, h)))
2777 {
6a9adeca
BS
2778 bfd_vma offset;
2779
c96a8570
BS
2780 addend += bfinfdpic_got_section (info)->output_section->vma;
2781 if ((bfd_get_section_flags (output_bfd,
2782 input_section->output_section)
2783 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2784 {
2785 if (_bfinfdpic_osec_readonly_p (output_bfd,
2786 input_section
2787 ->output_section))
2788 {
2789 info->callbacks->warning
2790 (info,
2791 _("cannot emit fixups in read-only section"),
2792 name, input_bfd, input_section, rel->r_offset);
2793 return FALSE;
2794 }
6a9adeca
BS
2795
2796 offset = _bfd_elf_section_offset
2797 (output_bfd, info,
2798 input_section, rel->r_offset);
2799
2800 if (offset != (bfd_vma)-1)
2801 _bfinfdpic_add_rofixup (output_bfd,
2802 bfinfdpic_gotfixup_section
2803 (info),
2804 offset + input_section
2805 ->output_section->vma
2806 + input_section->output_offset,
2807 picrel);
c96a8570
BS
2808 }
2809 }
2810 else if ((bfd_get_section_flags (output_bfd,
2811 input_section->output_section)
2812 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2813 {
2814 bfd_vma offset;
2815
2816 if (_bfinfdpic_osec_readonly_p (output_bfd,
2817 input_section
2818 ->output_section))
2819 {
2820 info->callbacks->warning
2821 (info,
2822 _("cannot emit dynamic relocations in read-only section"),
2823 name, input_bfd, input_section, rel->r_offset);
2824 return FALSE;
2825 }
2826 offset = _bfd_elf_section_offset (output_bfd, info,
2827 input_section, rel->r_offset);
6a9adeca
BS
2828
2829 if (offset != (bfd_vma)-1)
c96a8570
BS
2830 _bfinfdpic_add_dyn_reloc (output_bfd,
2831 bfinfdpic_gotrel_section (info),
2832 offset + input_section
2833 ->output_section->vma
2834 + input_section->output_offset,
2835 r_type,
2836 dynindx, addend, picrel);
2837 }
2838 else
2839 addend += bfinfdpic_got_section (info)->output_section->vma;
2840 }
2841
2842 /* We want the addend in-place because dynamic
2843 relocations are REL. Setting relocation to it should
2844 arrange for it to be installed. */
2845 relocation = addend - rel->r_addend;
2846 }
2847 check_segment[0] = check_segment[1] = got_segment;
2848 break;
2849
cb88ce9f 2850 case R_BFIN_BYTE4_DATA:
c96a8570 2851 if (! IS_FDPIC (output_bfd))
7a84e3da 2852 {
c96a8570
BS
2853 check_segment[0] = check_segment[1] = -1;
2854 break;
7a84e3da 2855 }
c96a8570
BS
2856 /* Fall through. */
2857 case R_BFIN_FUNCDESC_VALUE:
2858 {
2859 int dynindx;
2860 bfd_vma addend = rel->r_addend;
2861 bfd_vma offset;
2862 offset = _bfd_elf_section_offset (output_bfd, info,
2863 input_section, rel->r_offset);
7a84e3da 2864
c96a8570
BS
2865 /* If the symbol is dynamic but binds locally, use
2866 section+offset. */
2867 if (h && ! BFINFDPIC_SYM_LOCAL (info, h))
48d502e1 2868 {
c96a8570
BS
2869 if (addend && r_type == R_BFIN_FUNCDESC_VALUE)
2870 {
2871 info->callbacks->warning
2872 (info, _("R_BFIN_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
2873 name, input_bfd, input_section, rel->r_offset);
2874 return FALSE;
2875 }
2876 dynindx = h->dynindx;
48d502e1 2877 }
c96a8570 2878 else
48d502e1 2879 {
c96a8570
BS
2880 if (h)
2881 addend += h->root.u.def.value;
2882 else
2883 addend += sym->st_value;
2884 if (osec)
2885 addend += osec->output_offset;
2886 if (osec && osec->output_section
2887 && ! bfd_is_abs_section (osec->output_section)
2888 && ! bfd_is_und_section (osec->output_section))
2889 dynindx = elf_section_data (osec->output_section)->dynindx;
2890 else
2891 dynindx = 0;
2892 }
48d502e1 2893
c96a8570
BS
2894 /* If we're linking an executable at a fixed address, we
2895 can omit the dynamic relocation as long as the symbol
2896 is defined in the current link unit (which is implied
2897 by its output section not being NULL). */
3cbc1e5e 2898 if (bfd_link_pde (info)
c96a8570
BS
2899 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
2900 {
2901 if (osec)
2902 addend += osec->output_section->vma;
2903 if (IS_FDPIC (input_bfd)
2904 && (bfd_get_section_flags (output_bfd,
2905 input_section->output_section)
2906 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 2907 {
c96a8570
BS
2908 if (_bfinfdpic_osec_readonly_p (output_bfd,
2909 input_section
2910 ->output_section))
48d502e1 2911 {
c96a8570
BS
2912 info->callbacks->warning
2913 (info,
2914 _("cannot emit fixups in read-only section"),
2915 name, input_bfd, input_section, rel->r_offset);
2916 return FALSE;
2917 }
2918 if (!h || h->root.type != bfd_link_hash_undefweak)
2919 {
6a9adeca 2920 if (offset != (bfd_vma)-1)
c96a8570 2921 {
6a9adeca
BS
2922 _bfinfdpic_add_rofixup (output_bfd,
2923 bfinfdpic_gotfixup_section
2924 (info),
2925 offset + input_section
2926 ->output_section->vma
2927 + input_section->output_offset,
2928 picrel);
2929
2930 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS
2931 _bfinfdpic_add_rofixup
2932 (output_bfd,
2933 bfinfdpic_gotfixup_section (info),
2934 offset + input_section->output_section->vma
2935 + input_section->output_offset + 4, picrel);
2936 }
48d502e1
BS
2937 }
2938 }
48d502e1
BS
2939 }
2940 else
2941 {
c96a8570
BS
2942 if ((bfd_get_section_flags (output_bfd,
2943 input_section->output_section)
2944 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 2945 {
c96a8570
BS
2946 if (_bfinfdpic_osec_readonly_p (output_bfd,
2947 input_section
2948 ->output_section))
48d502e1 2949 {
c96a8570
BS
2950 info->callbacks->warning
2951 (info,
2952 _("cannot emit dynamic relocations in read-only section"),
2953 name, input_bfd, input_section, rel->r_offset);
2954 return FALSE;
48d502e1 2955 }
6a9adeca
BS
2956
2957 if (offset != (bfd_vma)-1)
c96a8570
BS
2958 _bfinfdpic_add_dyn_reloc (output_bfd,
2959 bfinfdpic_gotrel_section (info),
2960 offset
6a9adeca 2961 + input_section->output_section->vma
c96a8570
BS
2962 + input_section->output_offset,
2963 r_type, dynindx, addend, picrel);
48d502e1 2964 }
c96a8570
BS
2965 else if (osec)
2966 addend += osec->output_section->vma;
2967 /* We want the addend in-place because dynamic
2968 relocations are REL. Setting relocation to it
2969 should arrange for it to be installed. */
2970 relocation = addend - rel->r_addend;
2971 }
2972
6a9adeca 2973 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS
2974 {
2975 /* If we've omitted the dynamic relocation, just emit
2976 the fixed addresses of the symbol and of the local
2977 GOT base offset. */
3cbc1e5e 2978 if (bfd_link_pde (info)
c96a8570
BS
2979 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
2980 bfd_put_32 (output_bfd,
2981 bfinfdpic_got_section (info)->output_section->vma
2982 + bfinfdpic_got_section (info)->output_offset
2983 + bfinfdpic_got_initial_offset (info),
2984 contents + rel->r_offset + 4);
2985 else
2986 /* A function descriptor used for lazy or local
2987 resolving is initialized such that its high word
2988 contains the output section index in which the
2989 PLT entries are located, and the low word
2990 contains the offset of the lazy PLT entry entry
2991 point into that section. */
2992 bfd_put_32 (output_bfd,
2993 h && ! BFINFDPIC_SYM_LOCAL (info, h)
2994 ? 0
2995 : _bfinfdpic_osec_to_segment (output_bfd,
2996 sec
2997 ->output_section),
2998 contents + rel->r_offset + 4);
48d502e1 2999 }
c96a8570
BS
3000 }
3001 check_segment[0] = check_segment[1] = got_segment;
3002 break;
3003
3004 default:
3005 check_segment[0] = isec_segment;
3006 check_segment[1] = sec
3007 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
3008 : (unsigned)-1;
3009 break;
3010 }
3011
3012 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3013 {
3014#if 1 /* If you take this out, remove the #error from fdpic-static-6.d
3015 in the ld testsuite. */
3016 /* This helps catch problems in GCC while we can't do more
3017 than static linking. The idea is to test whether the
3018 input file basename is crt0.o only once. */
3019 if (silence_segment_error == 1)
3020 silence_segment_error =
3021 (strlen (input_bfd->filename) == 6
007d6189 3022 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
c96a8570 3023 || (strlen (input_bfd->filename) > 6
007d6189
KT
3024 && filename_cmp (input_bfd->filename
3025 + strlen (input_bfd->filename) - 7,
c96a8570
BS
3026 "/crt0.o") == 0)
3027 ? -1 : 0;
3028#endif
3029 if (!silence_segment_error
3030 /* We don't want duplicate errors for undefined
3031 symbols. */
3032 && !(picrel && picrel->symndx == -1
3033 && picrel->d.h->root.type == bfd_link_hash_undefined))
3034 info->callbacks->warning
3035 (info,
0e1862bb 3036 bfd_link_pic (info)
c96a8570
BS
3037 ? _("relocations between different segments are not supported")
3038 : _("warning: relocation references a different segment"),
3039 name, input_bfd, input_section, rel->r_offset);
0e1862bb 3040 if (!silence_segment_error && bfd_link_pic (info))
c96a8570
BS
3041 return FALSE;
3042 elf_elfheader (output_bfd)->e_flags |= EF_BFIN_PIC;
3043 }
3044
3045 switch (r_type)
3046 {
3047 case R_BFIN_GOTOFFHI:
3048 /* We need the addend to be applied before we shift the
3049 value right. */
3050 relocation += rel->r_addend;
3051 /* Fall through. */
3052 case R_BFIN_GOTHI:
3053 case R_BFIN_FUNCDESC_GOTHI:
3054 case R_BFIN_FUNCDESC_GOTOFFHI:
3055 relocation >>= 16;
3056 /* Fall through. */
48d502e1 3057
c96a8570
BS
3058 case R_BFIN_GOTLO:
3059 case R_BFIN_FUNCDESC_GOTLO:
3060 case R_BFIN_GOTOFFLO:
3061 case R_BFIN_FUNCDESC_GOTOFFLO:
3062 relocation &= 0xffff;
3063 break;
48d502e1 3064
48d502e1 3065 default:
48d502e1
BS
3066 break;
3067 }
3068
c96a8570 3069 switch (r_type)
48d502e1 3070 {
cb88ce9f
BS
3071 case R_BFIN_PCREL24:
3072 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS
3073 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3074 break;
3075 /* Fall through. */
3076
3077 /* When referencing a GOT entry, a function descriptor or a
3078 PLT, we don't want the addend to apply to the reference,
3079 but rather to the referenced symbol. The actual entry
3080 will have already been created taking the addend into
3081 account, so cancel it out here. */
3082 case R_BFIN_GOT17M4:
3083 case R_BFIN_GOTHI:
3084 case R_BFIN_GOTLO:
3085 case R_BFIN_FUNCDESC_GOT17M4:
3086 case R_BFIN_FUNCDESC_GOTHI:
3087 case R_BFIN_FUNCDESC_GOTLO:
3088 case R_BFIN_FUNCDESC_GOTOFF17M4:
3089 case R_BFIN_FUNCDESC_GOTOFFHI:
3090 case R_BFIN_FUNCDESC_GOTOFFLO:
3091 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF17M4
3092 here, since we do want to apply the addend to the others.
3093 Note that we've applied the addend to GOTOFFHI before we
3094 shifted it right. */
3095 case R_BFIN_GOTOFFHI:
3096 relocation -= rel->r_addend;
3097 break;
3098
3099 default:
3100 break;
48d502e1
BS
3101 }
3102
c96a8570
BS
3103 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
3104 contents, rel->r_offset,
3105 relocation, rel->r_addend);
3106
48d502e1
BS
3107 if (r != bfd_reloc_ok)
3108 {
c96a8570 3109 const char * msg = (const char *) NULL;
48d502e1 3110
c96a8570 3111 switch (r)
48d502e1 3112 {
c96a8570 3113 case bfd_reloc_overflow:
1a72702b 3114 (*info->callbacks->reloc_overflow)
c96a8570
BS
3115 (info, (h ? &h->root : NULL), name, howto->name,
3116 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3117 break;
0f64bb02 3118
c96a8570 3119 case bfd_reloc_undefined:
1a72702b 3120 (*info->callbacks->undefined_symbol)
c96a8570
BS
3121 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3122 break;
3123
3124 case bfd_reloc_outofrange:
3125 msg = _("internal error: out of range error");
3126 break;
3127
3128 case bfd_reloc_notsupported:
3129 msg = _("internal error: unsupported relocation error");
3130 break;
3131
3132 case bfd_reloc_dangerous:
3133 msg = _("internal error: dangerous relocation");
3134 break;
3135
3136 default:
3137 msg = _("internal error: unknown error");
3138 break;
48d502e1 3139 }
c96a8570
BS
3140
3141 if (msg)
1a72702b
AM
3142 (*info->callbacks->warning) (info, msg, name, input_bfd,
3143 input_section, rel->r_offset);
48d502e1
BS
3144 }
3145 }
3146
3147 return TRUE;
3148}
3149
48d502e1
BS
3150/* We need dynamic symbols for every section, since segments can
3151 relocate independently. */
3152static bfd_boolean
3153_bfinfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
51408ec2
AM
3154 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3155 asection *p)
48d502e1
BS
3156{
3157 switch (elf_section_data (p)->this_hdr.sh_type)
3158 {
3159 case SHT_PROGBITS:
3160 case SHT_NOBITS:
3161 /* If sh_type is yet undecided, assume it could be
3162 SHT_PROGBITS/SHT_NOBITS. */
3163 case SHT_NULL:
3164 return FALSE;
3165
3166 /* There shouldn't be section relative relocations
3167 against any other section. */
3168 default:
3169 return TRUE;
3170 }
3171}
3172
3173/* Create a .got section, as well as its additional info field. This
3174 is almost entirely copied from
3175 elflink.c:_bfd_elf_create_got_section(). */
3176
3177static bfd_boolean
3178_bfin_create_got_section (bfd *abfd, struct bfd_link_info *info)
3179{
3180 flagword flags, pltflags;
3181 asection *s;
3182 struct elf_link_hash_entry *h;
48d502e1
BS
3183 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3184 int ptralign;
48d502e1
BS
3185
3186 /* This function may be called more than once. */
ce558b89 3187 s = elf_hash_table (info)->sgot;
3d4d4302 3188 if (s != NULL)
48d502e1
BS
3189 return TRUE;
3190
3191 /* Machine specific: although pointers are 32-bits wide, we want the
3192 GOT to be aligned to a 64-bit boundary, such that function
3193 descriptors in it can be accessed with 64-bit loads and
3194 stores. */
3195 ptralign = 3;
3196
3197 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3198 | SEC_LINKER_CREATED);
3199 pltflags = flags;
3200
3d4d4302 3201 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
ce558b89 3202 elf_hash_table (info)->sgot = s;
48d502e1
BS
3203 if (s == NULL
3204 || !bfd_set_section_alignment (abfd, s, ptralign))
3205 return FALSE;
3206
48d502e1
BS
3207 if (bed->want_got_sym)
3208 {
3209 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
3210 (or .got.plt) section. We don't do this in the linker script
3211 because we don't want to define the symbol if we are not creating
3212 a global offset table. */
5592d7ec 3213 h = _bfd_elf_define_linkage_sym (abfd, info, s, "__GLOBAL_OFFSET_TABLE_");
48d502e1
BS
3214 elf_hash_table (info)->hgot = h;
3215 if (h == NULL)
3216 return FALSE;
3217
3218 /* Machine-specific: we want the symbol for executables as
3219 well. */
3220 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3221 return FALSE;
3222 }
3223
3224 /* The first bit of the global offset table is the header. */
3225 s->size += bed->got_header_size;
3226
3227 /* This is the machine-specific part. Create and initialize section
3228 data for the got. */
3229 if (IS_FDPIC (abfd))
3230 {
48d502e1
BS
3231 bfinfdpic_relocs_info (info) = htab_try_create (1,
3232 bfinfdpic_relocs_info_hash,
3233 bfinfdpic_relocs_info_eq,
3234 (htab_del) NULL);
3235 if (! bfinfdpic_relocs_info (info))
3236 return FALSE;
3237
3d4d4302
AM
3238 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
3239 (flags | SEC_READONLY));
48d502e1
BS
3240 if (s == NULL
3241 || ! bfd_set_section_alignment (abfd, s, 2))
3242 return FALSE;
3243
3244 bfinfdpic_gotrel_section (info) = s;
3245
3246 /* Machine-specific. */
3d4d4302
AM
3247 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
3248 (flags | SEC_READONLY));
48d502e1
BS
3249 if (s == NULL
3250 || ! bfd_set_section_alignment (abfd, s, 2))
3251 return FALSE;
3252
3253 bfinfdpic_gotfixup_section (info) = s;
48d502e1
BS
3254 }
3255
48d502e1
BS
3256 pltflags |= SEC_CODE;
3257 if (bed->plt_not_loaded)
3258 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
3259 if (bed->plt_readonly)
3260 pltflags |= SEC_READONLY;
3261
3d4d4302 3262 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
48d502e1 3263 if (s == NULL
48d502e1
BS
3264 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3265 return FALSE;
3266 /* Blackfin-specific: remember it. */
3267 bfinfdpic_plt_section (info) = s;
3268
3269 if (bed->want_plt_sym)
3270 {
3271 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3272 .plt section. */
48d502e1
BS
3273 struct bfd_link_hash_entry *bh = NULL;
3274
3275 if (! (_bfd_generic_link_add_one_symbol
5592d7ec 3276 (info, abfd, "__PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
48d502e1
BS
3277 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
3278 return FALSE;
3279 h = (struct elf_link_hash_entry *) bh;
3280 h->def_regular = 1;
3281 h->type = STT_OBJECT;
3282
0e1862bb 3283 if (! bfd_link_executable (info)
48d502e1
BS
3284 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3285 return FALSE;
3286 }
3287
3288 /* Blackfin-specific: we want rel relocations for the plt. */
3d4d4302
AM
3289 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
3290 flags | SEC_READONLY);
48d502e1 3291 if (s == NULL
48d502e1
BS
3292 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
3293 return FALSE;
3294 /* Blackfin-specific: remember it. */
3295 bfinfdpic_pltrel_section (info) = s;
3296
6a9adeca
BS
3297 return TRUE;
3298}
3299
3300/* Make sure the got and plt sections exist, and that our pointers in
3301 the link hash table point to them. */
3302
3303static bfd_boolean
3304elf32_bfinfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3305{
3306 /* This is mostly copied from
3307 elflink.c:_bfd_elf_create_dynamic_sections(). */
3308 flagword flags;
3309 asection *s;
3310 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3311
3312 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3313 | SEC_LINKER_CREATED);
3314
3315 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3316 .rel[a].bss sections. */
3317
48d502e1
BS
3318 /* Blackfin-specific: we want to create the GOT in the Blackfin way. */
3319 if (! _bfin_create_got_section (abfd, info))
3320 return FALSE;
3321
3322 /* Blackfin-specific: make sure we created everything we wanted. */
3323 BFD_ASSERT (bfinfdpic_got_section (info) && bfinfdpic_gotrel_section (info)
3324 /* && bfinfdpic_gotfixup_section (info) */
3325 && bfinfdpic_plt_section (info)
3326 && bfinfdpic_pltrel_section (info));
3327
3328 if (bed->want_dynbss)
3329 {
3330 /* The .dynbss section is a place to put symbols which are defined
3331 by dynamic objects, are referenced by regular objects, and are
3332 not functions. We must allocate space for them in the process
3333 image and use a R_*_COPY reloc to tell the dynamic linker to
3334 initialize them at run time. The linker script puts the .dynbss
3335 section into the .bss section of the final image. */
3d4d4302
AM
3336 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3337 SEC_ALLOC | SEC_LINKER_CREATED);
117ed4f8 3338 if (s == NULL)
48d502e1
BS
3339 return FALSE;
3340
3341 /* The .rel[a].bss section holds copy relocs. This section is not
3d4d4302
AM
3342 normally needed. We need to create it here, though, so that the
3343 linker will map it to an output section. We can't just create it
3344 only if we need it, because we will not know whether we need it
3345 until we have seen all the input files, and the first time the
3346 main linker code calls BFD after examining all the input files
3347 (size_dynamic_sections) the input sections have already been
3348 mapped to the output sections. If the section turns out not to
3349 be needed, we can discard it later. We will never need this
3350 section when generating a shared object, since they do not use
3351 copy relocs. */
0e1862bb 3352 if (! bfd_link_pic (info))
48d502e1 3353 {
3d4d4302
AM
3354 s = bfd_make_section_anyway_with_flags (abfd,
3355 ".rela.bss",
3356 flags | SEC_READONLY);
48d502e1 3357 if (s == NULL
48d502e1
BS
3358 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
3359 return FALSE;
3360 }
3361 }
3362
3363 return TRUE;
3364}
3365
48d502e1
BS
3366/* Compute the total GOT size required by each symbol in each range.
3367 Symbols may require up to 4 words in the GOT: an entry pointing to
3368 the symbol, an entry pointing to its function descriptor, and a
3369 private function descriptors taking two words. */
3370
6a9adeca
BS
3371static void
3372_bfinfdpic_count_nontls_entries (struct bfinfdpic_relocs_info *entry,
3373 struct _bfinfdpic_dynamic_got_info *dinfo)
48d502e1 3374{
48d502e1
BS
3375 /* Allocate space for a GOT entry pointing to the symbol. */
3376 if (entry->got17m4)
3377 dinfo->got17m4 += 4;
3378 else if (entry->gothilo)
3379 dinfo->gothilo += 4;
3380 else
3381 entry->relocs32--;
3382 entry->relocs32++;
3383
3384 /* Allocate space for a GOT entry pointing to the function
3385 descriptor. */
3386 if (entry->fdgot17m4)
3387 dinfo->got17m4 += 4;
3388 else if (entry->fdgothilo)
3389 dinfo->gothilo += 4;
3390 else
3391 entry->relocsfd--;
3392 entry->relocsfd++;
3393
3394 /* Decide whether we need a PLT entry, a function descriptor in the
3395 GOT, and a lazy PLT entry for this symbol. */
3396 entry->plt = entry->call
3397 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3398 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3399 entry->privfd = entry->plt
3400 || entry->fdgoff17m4 || entry->fdgoffhilo
3401 || ((entry->fd || entry->fdgot17m4 || entry->fdgothilo)
3402 && (entry->symndx != -1
3403 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
3404 entry->lazyplt = entry->privfd
3405 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3406 && ! (dinfo->info->flags & DF_BIND_NOW)
3407 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3408
3409 /* Allocate space for a function descriptor. */
3410 if (entry->fdgoff17m4)
3411 dinfo->fd17m4 += 8;
3412 else if (entry->privfd && entry->plt)
3413 dinfo->fdplt += 8;
3414 else if (entry->privfd)
3415 dinfo->fdhilo += 8;
3416 else
3417 entry->relocsfdv--;
3418 entry->relocsfdv++;
3419
3420 if (entry->lazyplt)
3421 dinfo->lzplt += LZPLT_NORMAL_SIZE;
6a9adeca
BS
3422}
3423
3424/* Compute the number of dynamic relocations and fixups that a symbol
3425 requires, and add (or subtract) from the grand and per-symbol
3426 totals. */
3427
3428static void
3429_bfinfdpic_count_relocs_fixups (struct bfinfdpic_relocs_info *entry,
3430 struct _bfinfdpic_dynamic_got_info *dinfo,
3431 bfd_boolean subtract)
3432{
3433 bfd_vma relocs = 0, fixups = 0;
48d502e1 3434
3cbc1e5e 3435 if (!bfd_link_pde (dinfo->info))
48d502e1
BS
3436 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv;
3437 else
3438 {
3439 if (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
3440 {
3441 if (entry->symndx != -1
3442 || entry->d.h->root.type != bfd_link_hash_undefweak)
3443 fixups += entry->relocs32 + 2 * entry->relocsfdv;
3444 }
3445 else
3446 relocs += entry->relocs32 + entry->relocsfdv;
3447
3448 if (entry->symndx != -1
3449 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
3450 {
3451 if (entry->symndx != -1
3452 || entry->d.h->root.type != bfd_link_hash_undefweak)
3453 fixups += entry->relocsfd;
3454 }
3455 else
3456 relocs += entry->relocsfd;
3457 }
3458
6a9adeca
BS
3459 if (subtract)
3460 {
3461 relocs = - relocs;
3462 fixups = - fixups;
3463 }
3464
48d502e1
BS
3465 entry->dynrelocs += relocs;
3466 entry->fixups += fixups;
3467 dinfo->relocs += relocs;
3468 dinfo->fixups += fixups;
6a9adeca
BS
3469}
3470
3471/* Compute the total GOT and PLT size required by each symbol in each range. *
3472 Symbols may require up to 4 words in the GOT: an entry pointing to
3473 the symbol, an entry pointing to its function descriptor, and a
3474 private function descriptors taking two words. */
3475
3476static int
3477_bfinfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
3478{
3479 struct bfinfdpic_relocs_info *entry = *entryp;
3480 struct _bfinfdpic_dynamic_got_info *dinfo = dinfo_;
3481
3482 _bfinfdpic_count_nontls_entries (entry, dinfo);
3483
3484 _bfinfdpic_count_relocs_fixups (entry, dinfo, FALSE);
48d502e1
BS
3485
3486 return 1;
3487}
3488
3489/* This structure is used to assign offsets to got entries, function
3490 descriptors, plt entries and lazy plt entries. */
3491
3492struct _bfinfdpic_dynamic_got_plt_info
3493{
3494 /* Summary information collected with _bfinfdpic_count_got_plt_entries. */
3495 struct _bfinfdpic_dynamic_got_info g;
3496
3497 /* For each addressable range, we record a MAX (positive) and MIN
3498 (negative) value. CUR is used to assign got entries, and it's
3499 incremented from an initial positive value to MAX, then from MIN
3500 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
3501 assign function descriptors, and it's decreased from an initial
3502 non-positive value to MIN, then from MAX down to CUR (unless CUR
3503 wraps around first). All of MIN, MAX, CUR and FDCUR always point
3504 to even words. ODD, if non-zero, indicates an odd word to be
3505 used for the next got entry, otherwise CUR is used and
3506 incremented by a pair of words, wrapping around when it reaches
3507 MAX. FDCUR is decremented (and wrapped) before the next function
3508 descriptor is chosen. FDPLT indicates the number of remaining
3509 slots that can be used for function descriptors used only by PLT
3510 entries. */
3511 struct _bfinfdpic_dynamic_got_alloc_data
3512 {
3513 bfd_signed_vma max, cur, odd, fdcur, min;
3514 bfd_vma fdplt;
3515 } got17m4, gothilo;
3516};
3517
3518/* Determine the positive and negative ranges to be used by each
3519 offset range in the GOT. FDCUR and CUR, that must be aligned to a
3520 double-word boundary, are the minimum (negative) and maximum
3521 (positive) GOT offsets already used by previous ranges, except for
3522 an ODD entry that may have been left behind. GOT and FD indicate
3523 the size of GOT entries and function descriptors that must be
3524 placed within the range from -WRAP to WRAP. If there's room left,
3525 up to FDPLT bytes should be reserved for additional function
3526 descriptors. */
3527
3528inline static bfd_signed_vma
3529_bfinfdpic_compute_got_alloc_data (struct _bfinfdpic_dynamic_got_alloc_data *gad,
3530 bfd_signed_vma fdcur,
3531 bfd_signed_vma odd,
3532 bfd_signed_vma cur,
3533 bfd_vma got,
3534 bfd_vma fd,
3535 bfd_vma fdplt,
3536 bfd_vma wrap)
3537{
3538 bfd_signed_vma wrapmin = -wrap;
3539
3540 /* Start at the given initial points. */
3541 gad->fdcur = fdcur;
3542 gad->cur = cur;
3543
3544 /* If we had an incoming odd word and we have any got entries that
3545 are going to use it, consume it, otherwise leave gad->odd at
3546 zero. We might force gad->odd to zero and return the incoming
3547 odd such that it is used by the next range, but then GOT entries
3548 might appear to be out of order and we wouldn't be able to
3549 shorten the GOT by one word if it turns out to end with an
3550 unpaired GOT entry. */
3551 if (odd && got)
3552 {
3553 gad->odd = odd;
3554 got -= 4;
3555 odd = 0;
3556 }
3557 else
3558 gad->odd = 0;
3559
3560 /* If we're left with an unpaired GOT entry, compute its location
3561 such that we can return it. Otherwise, if got doesn't require an
3562 odd number of words here, either odd was already zero in the
3563 block above, or it was set to zero because got was non-zero, or
3564 got was already zero. In the latter case, we want the value of
3565 odd to carry over to the return statement, so we don't want to
3566 reset odd unless the condition below is true. */
3567 if (got & 4)
3568 {
3569 odd = cur + got;
3570 got += 4;
3571 }
3572
3573 /* Compute the tentative boundaries of this range. */
3574 gad->max = cur + got;
3575 gad->min = fdcur - fd;
3576 gad->fdplt = 0;
3577
3578 /* If function descriptors took too much space, wrap some of them
3579 around. */
3580 if (gad->min < wrapmin)
3581 {
3582 gad->max += wrapmin - gad->min;
3583 gad->min = wrapmin;
3584 }
3585 /* If there is space left and we have function descriptors
3586 referenced in PLT entries that could take advantage of shorter
3587 offsets, place them here. */
3588 else if (fdplt && gad->min > wrapmin)
3589 {
3590 bfd_vma fds;
3591 if ((bfd_vma) (gad->min - wrapmin) < fdplt)
3592 fds = gad->min - wrapmin;
3593 else
3594 fds = fdplt;
3595
3596 fdplt -= fds;
3597 gad->min -= fds;
3598 gad->fdplt += fds;
3599 }
3600
3601 /* If GOT entries took too much space, wrap some of them around.
3602 This may well cause gad->min to become lower than wrapmin. This
3603 will cause a relocation overflow later on, so we don't have to
3604 report it here . */
3605 if ((bfd_vma) gad->max > wrap)
3606 {
3607 gad->min -= gad->max - wrap;
3608 gad->max = wrap;
3609 }
3610 /* If there is more space left, try to place some more function
3611 descriptors for PLT entries. */
3612 else if (fdplt && (bfd_vma) gad->max < wrap)
3613 {
3614 bfd_vma fds;
3615 if ((bfd_vma) (wrap - gad->max) < fdplt)
3616 fds = wrap - gad->max;
3617 else
3618 fds = fdplt;
3619
3620 fdplt -= fds;
3621 gad->max += fds;
3622 gad->fdplt += fds;
3623 }
3624
3625 /* If odd was initially computed as an offset past the wrap point,
3626 wrap it around. */
3627 if (odd > gad->max)
3628 odd = gad->min + odd - gad->max;
3629
3630 /* _bfinfdpic_get_got_entry() below will always wrap gad->cur if needed
3631 before returning, so do it here too. This guarantees that,
3632 should cur and fdcur meet at the wrap point, they'll both be
3633 equal to min. */
3634 if (gad->cur == gad->max)
3635 gad->cur = gad->min;
3636
3637 return odd;
3638}
3639
3640/* Compute the location of the next GOT entry, given the allocation
3641 data for a range. */
3642
3643inline static bfd_signed_vma
3644_bfinfdpic_get_got_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3645{
3646 bfd_signed_vma ret;
3647
3648 if (gad->odd)
3649 {
3650 /* If there was an odd word left behind, use it. */
3651 ret = gad->odd;
3652 gad->odd = 0;
3653 }
3654 else
3655 {
3656 /* Otherwise, use the word pointed to by cur, reserve the next
3657 as an odd word, and skip to the next pair of words, possibly
3658 wrapping around. */
3659 ret = gad->cur;
3660 gad->odd = gad->cur + 4;
3661 gad->cur += 8;
3662 if (gad->cur == gad->max)
3663 gad->cur = gad->min;
3664 }
3665
3666 return ret;
3667}
3668
3669/* Compute the location of the next function descriptor entry in the
3670 GOT, given the allocation data for a range. */
3671
3672inline static bfd_signed_vma
3673_bfinfdpic_get_fd_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3674{
3675 /* If we're at the bottom, wrap around, and only then allocate the
3676 next pair of words. */
3677 if (gad->fdcur == gad->min)
3678 gad->fdcur = gad->max;
3679 return gad->fdcur -= 8;
3680}
3681
3682/* Assign GOT offsets for every GOT entry and function descriptor.
3683 Doing everything in a single pass is tricky. */
3684
3685static int
3686_bfinfdpic_assign_got_entries (void **entryp, void *info_)
3687{
3688 struct bfinfdpic_relocs_info *entry = *entryp;
3689 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3690
3691 if (entry->got17m4)
3692 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3693 else if (entry->gothilo)
3694 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3695
3696 if (entry->fdgot17m4)
3697 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3698 else if (entry->fdgothilo)
3699 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3700
3701 if (entry->fdgoff17m4)
3702 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3703 else if (entry->plt && dinfo->got17m4.fdplt)
3704 {
3705 dinfo->got17m4.fdplt -= 8;
3706 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3707 }
3708 else if (entry->plt)
3709 {
3710 dinfo->gothilo.fdplt -= 8;
3711 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3712 }
3713 else if (entry->privfd)
3714 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3715
3716 return 1;
3717}
3718
3719/* Assign GOT offsets to private function descriptors used by PLT
3720 entries (or referenced by 32-bit offsets), as well as PLT entries
3721 and lazy PLT entries. */
3722
3723static int
3724_bfinfdpic_assign_plt_entries (void **entryp, void *info_)
3725{
3726 struct bfinfdpic_relocs_info *entry = *entryp;
3727 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3728
3729 /* If this symbol requires a local function descriptor, allocate
3730 one. */
3731 if (entry->privfd && entry->fd_entry == 0)
3732 {
3733 if (dinfo->got17m4.fdplt)
3734 {
3735 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3736 dinfo->got17m4.fdplt -= 8;
3737 }
3738 else
3739 {
3740 BFD_ASSERT (dinfo->gothilo.fdplt);
3741 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3742 dinfo->gothilo.fdplt -= 8;
3743 }
3744 }
3745
3746 if (entry->plt)
3747 {
3748 int size;
3749
3750 /* We use the section's raw size to mark the location of the
3751 next PLT entry. */
3752 entry->plt_entry = bfinfdpic_plt_section (dinfo->g.info)->size;
3753
3754 /* Figure out the length of this PLT entry based on the
3755 addressing mode we need to reach the function descriptor. */
3756 BFD_ASSERT (entry->fd_entry);
3757 if (entry->fd_entry >= -(1 << (18 - 1))
3758 && entry->fd_entry + 4 < (1 << (18 - 1)))
3759 size = 10;
3760 else
3761 size = 16;
3762
3763 bfinfdpic_plt_section (dinfo->g.info)->size += size;
3764 }
3765
3766 if (entry->lazyplt)
3767 {
3768 entry->lzplt_entry = dinfo->g.lzplt;
3769 dinfo->g.lzplt += LZPLT_NORMAL_SIZE;
3770 /* If this entry is the one that gets the resolver stub, account
3771 for the additional instruction. */
3772 if (entry->lzplt_entry % BFINFDPIC_LZPLT_BLOCK_SIZE
3773 == BFINFDPIC_LZPLT_RESOLV_LOC)
3774 dinfo->g.lzplt += LZPLT_RESOLVER_EXTRA;
3775 }
3776
3777 return 1;
3778}
3779
6a9adeca
BS
3780/* Cancel out any effects of calling _bfinfdpic_assign_got_entries and
3781 _bfinfdpic_assign_plt_entries. */
3782
3783static int
3784_bfinfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
3785{
3786 struct bfinfdpic_relocs_info *entry = *entryp;
3787
3788 entry->got_entry = 0;
3789 entry->fdgot_entry = 0;
3790 entry->fd_entry = 0;
3791 entry->plt_entry = (bfd_vma)-1;
3792 entry->lzplt_entry = (bfd_vma)-1;
3793
3794 return 1;
3795}
3796
48d502e1
BS
3797/* Follow indirect and warning hash entries so that each got entry
3798 points to the final symbol definition. P must point to a pointer
3799 to the hash table we're traversing. Since this traversal may
3800 modify the hash table, we set this pointer to NULL to indicate
3801 we've made a potentially-destructive change to the hash table, so
3802 the traversal must be restarted. */
3803static int
3804_bfinfdpic_resolve_final_relocs_info (void **entryp, void *p)
3805{
3806 struct bfinfdpic_relocs_info *entry = *entryp;
3807 htab_t *htab = p;
3808
3809 if (entry->symndx == -1)
3810 {
3811 struct elf_link_hash_entry *h = entry->d.h;
3812 struct bfinfdpic_relocs_info *oentry;
3813
3814 while (h->root.type == bfd_link_hash_indirect
3815 || h->root.type == bfd_link_hash_warning)
3816 h = (struct elf_link_hash_entry *)h->root.u.i.link;
3817
3818 if (entry->d.h == h)
3819 return 1;
3820
3821 oentry = bfinfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
3822 NO_INSERT);
3823
3824 if (oentry)
3825 {
3826 /* Merge the two entries. */
3827 bfinfdpic_pic_merge_early_relocs_info (oentry, entry);
3828 htab_clear_slot (*htab, entryp);
3829 return 1;
3830 }
3831
3832 entry->d.h = h;
3833
3834 /* If we can't find this entry with the new bfd hash, re-insert
3835 it, and get the traversal restarted. */
3836 if (! htab_find (*htab, entry))
3837 {
3838 htab_clear_slot (*htab, entryp);
3839 entryp = htab_find_slot (*htab, entry, INSERT);
3840 if (! *entryp)
3841 *entryp = entry;
3842 /* Abort the traversal, since the whole table may have
3843 moved, and leave it up to the parent to restart the
3844 process. */
3845 *(htab_t *)p = NULL;
3846 return 0;
3847 }
3848 }
3849
3850 return 1;
3851}
3852
6a9adeca
BS
3853/* Compute the total size of the GOT, the PLT, the dynamic relocations
3854 section and the rofixup section. Assign locations for GOT and PLT
3855 entries. */
48d502e1
BS
3856
3857static bfd_boolean
6a9adeca
BS
3858_bfinfdpic_size_got_plt (bfd *output_bfd,
3859 struct _bfinfdpic_dynamic_got_plt_info *gpinfop)
48d502e1 3860{
48d502e1
BS
3861 bfd_signed_vma odd;
3862 bfd_vma limit;
6a9adeca
BS
3863 struct bfd_link_info *info = gpinfop->g.info;
3864 bfd *dynobj = elf_hash_table (info)->dynobj;
48d502e1 3865
6a9adeca
BS
3866 memcpy (bfinfdpic_dynamic_got_plt_info (info), &gpinfop->g,
3867 sizeof (gpinfop->g));
48d502e1
BS
3868
3869 odd = 12;
3870 /* Compute the total size taken by entries in the 18-bit range,
3871 to tell how many PLT function descriptors we can bring into it
3872 without causing it to overflow. */
6a9adeca 3873 limit = odd + gpinfop->g.got17m4 + gpinfop->g.fd17m4;
48d502e1
BS
3874 if (limit < (bfd_vma)1 << 18)
3875 limit = ((bfd_vma)1 << 18) - limit;
3876 else
3877 limit = 0;
6a9adeca
BS
3878 if (gpinfop->g.fdplt < limit)
3879 limit = gpinfop->g.fdplt;
48d502e1
BS
3880
3881 /* Determine the ranges of GOT offsets that we can use for each
3882 range of addressing modes. */
6a9adeca 3883 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->got17m4,
48d502e1
BS
3884 0,
3885 odd,
3886 16,
6a9adeca
BS
3887 gpinfop->g.got17m4,
3888 gpinfop->g.fd17m4,
48d502e1
BS
3889 limit,
3890 (bfd_vma)1 << (18-1));
6a9adeca
BS
3891 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->gothilo,
3892 gpinfop->got17m4.min,
48d502e1 3893 odd,
6a9adeca
BS
3894 gpinfop->got17m4.max,
3895 gpinfop->g.gothilo,
3896 gpinfop->g.fdhilo,
3897 gpinfop->g.fdplt - gpinfop->got17m4.fdplt,
48d502e1
BS
3898 (bfd_vma)1 << (32-1));
3899
3900 /* Now assign (most) GOT offsets. */
3901 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_got_entries,
6a9adeca 3902 gpinfop);
48d502e1 3903
6a9adeca
BS
3904 bfinfdpic_got_section (info)->size = gpinfop->gothilo.max
3905 - gpinfop->gothilo.min
48d502e1
BS
3906 /* If an odd word is the last word of the GOT, we don't need this
3907 word to be part of the GOT. */
6a9adeca 3908 - (odd + 4 == gpinfop->gothilo.max ? 4 : 0);
48d502e1
BS
3909 if (bfinfdpic_got_section (info)->size == 0)
3910 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3911 else if (bfinfdpic_got_section (info)->size == 12
3912 && ! elf_hash_table (info)->dynamic_sections_created)
3913 {
3914 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3915 bfinfdpic_got_section (info)->size = 0;
3916 }
3917 else
3918 {
3919 bfinfdpic_got_section (info)->contents =
3920 (bfd_byte *) bfd_zalloc (dynobj,
3921 bfinfdpic_got_section (info)->size);
3922 if (bfinfdpic_got_section (info)->contents == NULL)
3923 return FALSE;
3924 }
3925
3926 if (elf_hash_table (info)->dynamic_sections_created)
3927 /* Subtract the number of lzplt entries, since those will generate
3928 relocations in the pltrel section. */
3929 bfinfdpic_gotrel_section (info)->size =
6a9adeca 3930 (gpinfop->g.relocs - gpinfop->g.lzplt / LZPLT_NORMAL_SIZE)
48d502e1
BS
3931 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3932 else
6a9adeca 3933 BFD_ASSERT (gpinfop->g.relocs == 0);
48d502e1
BS
3934 if (bfinfdpic_gotrel_section (info)->size == 0)
3935 bfinfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
3936 else
3937 {
3938 bfinfdpic_gotrel_section (info)->contents =
3939 (bfd_byte *) bfd_zalloc (dynobj,
3940 bfinfdpic_gotrel_section (info)->size);
3941 if (bfinfdpic_gotrel_section (info)->contents == NULL)
3942 return FALSE;
3943 }
3944
6a9adeca 3945 bfinfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
48d502e1
BS
3946 if (bfinfdpic_gotfixup_section (info)->size == 0)
3947 bfinfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
3948 else
3949 {
3950 bfinfdpic_gotfixup_section (info)->contents =
3951 (bfd_byte *) bfd_zalloc (dynobj,
3952 bfinfdpic_gotfixup_section (info)->size);
3953 if (bfinfdpic_gotfixup_section (info)->contents == NULL)
3954 return FALSE;
3955 }
3956
3957 if (elf_hash_table (info)->dynamic_sections_created)
d3e32c2e
JZ
3958 bfinfdpic_pltrel_section (info)->size =
3959 gpinfop->g.lzplt / LZPLT_NORMAL_SIZE * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3960 if (bfinfdpic_pltrel_section (info)->size == 0)
3961 bfinfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
3962 else
48d502e1 3963 {
d3e32c2e
JZ
3964 bfinfdpic_pltrel_section (info)->contents =
3965 (bfd_byte *) bfd_zalloc (dynobj,
3966 bfinfdpic_pltrel_section (info)->size);
3967 if (bfinfdpic_pltrel_section (info)->contents == NULL)
3968 return FALSE;
48d502e1
BS
3969 }
3970
3971 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
3972 such that there's room for the additional instruction needed to
3973 call the resolver. Since _bfinfdpic_assign_got_entries didn't
3974 account for them, our block size is 4 bytes smaller than the real
3975 block size. */
3976 if (elf_hash_table (info)->dynamic_sections_created)
3977 {
6a9adeca
BS
3978 bfinfdpic_plt_section (info)->size = gpinfop->g.lzplt
3979 + ((gpinfop->g.lzplt + (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) - LZPLT_NORMAL_SIZE)
48d502e1
BS
3980 / (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) * LZPLT_RESOLVER_EXTRA);
3981 }
3982
3983 /* Reset it, such that _bfinfdpic_assign_plt_entries() can use it to
3984 actually assign lazy PLT entries addresses. */
6a9adeca 3985 gpinfop->g.lzplt = 0;
48d502e1
BS
3986
3987 /* Save information that we're going to need to generate GOT and PLT
3988 entries. */
6a9adeca 3989 bfinfdpic_got_initial_offset (info) = -gpinfop->gothilo.min;
48d502e1
BS
3990
3991 if (get_elf_backend_data (output_bfd)->want_got_sym)
3992 elf_hash_table (info)->hgot->root.u.def.value
6a9adeca 3993 = bfinfdpic_got_initial_offset (info);
48d502e1
BS
3994
3995 if (elf_hash_table (info)->dynamic_sections_created)
3996 bfinfdpic_plt_initial_offset (info) =
3997 bfinfdpic_plt_section (info)->size;
3998
3999 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_plt_entries,
6a9adeca 4000 gpinfop);
48d502e1
BS
4001
4002 /* Allocate the PLT section contents only after
4003 _bfinfdpic_assign_plt_entries has a chance to add the size of the
4004 non-lazy PLT entries. */
d3e32c2e
JZ
4005 if (bfinfdpic_plt_section (info)->size == 0)
4006 bfinfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
4007 else
48d502e1 4008 {
d3e32c2e
JZ
4009 bfinfdpic_plt_section (info)->contents =
4010 (bfd_byte *) bfd_zalloc (dynobj,
4011 bfinfdpic_plt_section (info)->size);
4012 if (bfinfdpic_plt_section (info)->contents == NULL)
4013 return FALSE;
48d502e1
BS
4014 }
4015
6a9adeca
BS
4016 return TRUE;
4017}
4018
4019/* Set the sizes of the dynamic sections. */
4020
4021static bfd_boolean
4022elf32_bfinfdpic_size_dynamic_sections (bfd *output_bfd,
4023 struct bfd_link_info *info)
4024{
4025 struct elf_link_hash_table *htab;
4026 bfd *dynobj;
4027 asection *s;
4028 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4029
4030 htab = elf_hash_table (info);
4031 dynobj = htab->dynobj;
4032 BFD_ASSERT (dynobj != NULL);
4033
4034 if (htab->dynamic_sections_created)
4035 {
4036 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 4037 if (bfd_link_executable (info) && !info->nointerp)
6a9adeca 4038 {
3d4d4302 4039 s = bfd_get_linker_section (dynobj, ".interp");
6a9adeca
BS
4040 BFD_ASSERT (s != NULL);
4041 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4042 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
4043 }
4044 }
4045
4046 memset (&gpinfo, 0, sizeof (gpinfo));
4047 gpinfo.g.info = info;
4048
4049 for (;;)
4050 {
4051 htab_t relocs = bfinfdpic_relocs_info (info);
4052
4053 htab_traverse (relocs, _bfinfdpic_resolve_final_relocs_info, &relocs);
4054
4055 if (relocs == bfinfdpic_relocs_info (info))
4056 break;
4057 }
4058
4059 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_count_got_plt_entries,
4060 &gpinfo.g);
4061
4062 /* Allocate space to save the summary information, we're going to
4063 use it if we're doing relaxations. */
4064 bfinfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
4065
4066 if (!_bfinfdpic_size_got_plt (output_bfd, &gpinfo))
4067 return FALSE;
4068
48d502e1
BS
4069 if (elf_hash_table (info)->dynamic_sections_created)
4070 {
4071 if (bfinfdpic_got_section (info)->size)
4072 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
4073 return FALSE;
4074
4075 if (bfinfdpic_pltrel_section (info)->size)
4076 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
4077 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
4078 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
4079 return FALSE;
4080
4081 if (bfinfdpic_gotrel_section (info)->size)
4082 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
4083 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
4084 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
4085 sizeof (Elf32_External_Rel)))
4086 return FALSE;
4087 }
4088
3d4d4302 4089 s = bfd_get_linker_section (dynobj, ".dynbss");
153d38f6
JZ
4090 if (s && s->size == 0)
4091 s->flags |= SEC_EXCLUDE;
4092
3d4d4302 4093 s = bfd_get_linker_section (dynobj, ".rela.bss");
153d38f6
JZ
4094 if (s && s->size == 0)
4095 s->flags |= SEC_EXCLUDE;
4096
48d502e1
BS
4097 return TRUE;
4098}
4099
4100static bfd_boolean
4101elf32_bfinfdpic_always_size_sections (bfd *output_bfd,
4102 struct bfd_link_info *info)
4103{
0e1862bb 4104 if (!bfd_link_relocatable (info)
04c3a755
NS
4105 && !bfd_elf_stack_segment_size (output_bfd, info,
4106 "__stacksize", DEFAULT_STACK_SIZE))
4107 return FALSE;
48d502e1
BS
4108
4109 return TRUE;
4110}
4111
6a9adeca
BS
4112/* Check whether any of the relocations was optimized away, and
4113 subtract it from the relocation or fixup count. */
4114static bfd_boolean
4115_bfinfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
2c3fc389
NC
4116 struct bfd_link_info *info,
4117 bfd_boolean *changed)
6a9adeca
BS
4118{
4119 Elf_Internal_Shdr *symtab_hdr;
4120 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4121 Elf_Internal_Rela *rel, *erel;
4122
4123 if ((sec->flags & SEC_RELOC) == 0
4124 || sec->reloc_count == 0)
4125 return TRUE;
4126
4127 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4128 sym_hashes = elf_sym_hashes (abfd);
4129 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
4130 if (!elf_bad_symtab (abfd))
4131 sym_hashes_end -= symtab_hdr->sh_info;
4132
4133 rel = elf_section_data (sec)->relocs;
4134
4135 /* Now examine each relocation. */
4136 for (erel = rel + sec->reloc_count; rel < erel; rel++)
4137 {
4138 struct elf_link_hash_entry *h;
4139 unsigned long r_symndx;
4140 struct bfinfdpic_relocs_info *picrel;
4141 struct _bfinfdpic_dynamic_got_info *dinfo;
4142
4143 if (ELF32_R_TYPE (rel->r_info) != R_BFIN_BYTE4_DATA
4144 && ELF32_R_TYPE (rel->r_info) != R_BFIN_FUNCDESC)
4145 continue;
4146
4147 if (_bfd_elf_section_offset (sec->output_section->owner,
4148 info, sec, rel->r_offset)
4149 != (bfd_vma)-1)
4150 continue;
4151
4152 r_symndx = ELF32_R_SYM (rel->r_info);
4153 if (r_symndx < symtab_hdr->sh_info)
4154 h = NULL;
4155 else
4156 {
4157 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4158 while (h->root.type == bfd_link_hash_indirect
4159 || h->root.type == bfd_link_hash_warning)
4160 h = (struct elf_link_hash_entry *)h->root.u.i.link;
4161 }
4162
4163 if (h != NULL)
4164 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4165 abfd, h,
4166 rel->r_addend, NO_INSERT);
4167 else
4168 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info (info),
4169 abfd, r_symndx,
4170 rel->r_addend, NO_INSERT);
4171
4172 if (! picrel)
4173 return FALSE;
4174
4175 *changed = TRUE;
4176 dinfo = bfinfdpic_dynamic_got_plt_info (info);
4177
4178 _bfinfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
4179 if (ELF32_R_TYPE (rel->r_info) == R_BFIN_BYTE4_DATA)
4180 picrel->relocs32--;
4181 else /* we know (ELF32_R_TYPE (rel->r_info) == R_BFIN_FUNCDESC) */
4182 picrel->relocsfd--;
4183 _bfinfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
4184 }
4185
4186 return TRUE;
4187}
4188
4189static bfd_boolean
4190bfinfdpic_elf_discard_info (bfd *ibfd,
4191 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
4192 struct bfd_link_info *info)
4193{
4194 bfd_boolean changed = FALSE;
4195 asection *s;
4196 bfd *obfd = NULL;
4197
4198 /* Account for relaxation of .eh_frame section. */
4199 for (s = ibfd->sections; s; s = s->next)
dbaa2011 4200 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
6a9adeca
BS
4201 {
4202 if (!_bfinfdpic_check_discarded_relocs (ibfd, s, info, &changed))
4203 return FALSE;
4204 obfd = s->output_section->owner;
4205 }
4206
4207 if (changed)
4208 {
4209 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4210
4211 memset (&gpinfo, 0, sizeof (gpinfo));
4212 memcpy (&gpinfo.g, bfinfdpic_dynamic_got_plt_info (info),
4213 sizeof (gpinfo.g));
4214
4215 /* Clear GOT and PLT assignments. */
4216 htab_traverse (bfinfdpic_relocs_info (info),
4217 _bfinfdpic_reset_got_plt_entries,
4218 NULL);
4219
4220 if (!_bfinfdpic_size_got_plt (obfd, &gpinfo))
4221 return FALSE;
4222 }
4223
4224 return TRUE;
4225}
4226
48d502e1
BS
4227static bfd_boolean
4228elf32_bfinfdpic_finish_dynamic_sections (bfd *output_bfd,
4229 struct bfd_link_info *info)
4230{
4231 bfd *dynobj;
4232 asection *sdyn;
4233
4234 dynobj = elf_hash_table (info)->dynobj;
4235
4236 if (bfinfdpic_got_section (info))
4237 {
4238 BFD_ASSERT (bfinfdpic_gotrel_section (info)->size
ed3056eb
NC
4239 /* PR 17334: It appears that the GOT section can end up
4240 being bigger than the number of relocs. Presumably
4241 because some relocs have been deleted. A test case has
4242 yet to be generated for verify this, but in the meantime
4243 the test below has been changed from == to >= so that
4244 applications can continue to be built. */
4245 >= (bfinfdpic_gotrel_section (info)->reloc_count
48d502e1
BS
4246 * sizeof (Elf32_External_Rel)));
4247
4248 if (bfinfdpic_gotfixup_section (info))
4249 {
4250 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
4251 bfd_vma got_value = hgot->root.u.def.value
4252 + hgot->root.u.def.section->output_section->vma
4253 + hgot->root.u.def.section->output_offset;
4254
4255 _bfinfdpic_add_rofixup (output_bfd, bfinfdpic_gotfixup_section (info),
4256 got_value, 0);
4257
4258 if (bfinfdpic_gotfixup_section (info)->size
4259 != (bfinfdpic_gotfixup_section (info)->reloc_count * 4))
0f64bb02 4260 {
4eca0228 4261 _bfd_error_handler
48d502e1 4262 ("LINKER BUG: .rofixup section size mismatch");
0f64bb02
CM
4263 return FALSE;
4264 }
4265 }
4266 }
48d502e1
BS
4267 if (elf_hash_table (info)->dynamic_sections_created)
4268 {
4269 BFD_ASSERT (bfinfdpic_pltrel_section (info)->size
4270 == (bfinfdpic_pltrel_section (info)->reloc_count
4271 * sizeof (Elf32_External_Rel)));
4272 }
4273
3d4d4302 4274 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
48d502e1
BS
4275
4276 if (elf_hash_table (info)->dynamic_sections_created)
4277 {
4278 Elf32_External_Dyn * dyncon;
4279 Elf32_External_Dyn * dynconend;
4280
4281 BFD_ASSERT (sdyn != NULL);
4282
4283 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4284 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4285
4286 for (; dyncon < dynconend; dyncon++)
4287 {
4288 Elf_Internal_Dyn dyn;
4289
4290 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4291
4292 switch (dyn.d_tag)
4293 {
4294 default:
4295 break;
4296
4297 case DT_PLTGOT:
4298 dyn.d_un.d_ptr = bfinfdpic_got_section (info)->output_section->vma
4299 + bfinfdpic_got_section (info)->output_offset
4300 + bfinfdpic_got_initial_offset (info);
4301 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4302 break;
4303
4304 case DT_JMPREL:
4305 dyn.d_un.d_ptr = bfinfdpic_pltrel_section (info)
4306 ->output_section->vma
4307 + bfinfdpic_pltrel_section (info)->output_offset;
4308 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4309 break;
4310
4311 case DT_PLTRELSZ:
4312 dyn.d_un.d_val = bfinfdpic_pltrel_section (info)->size;
4313 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4314 break;
4315 }
4316 }
4317 }
4318
4319 return TRUE;
4320}
4321
4322/* Adjust a symbol defined by a dynamic object and referenced by a
4323 regular object. */
4324
4325static bfd_boolean
2c3fc389
NC
4326elf32_bfinfdpic_adjust_dynamic_symbol (struct bfd_link_info *info,
4327 struct elf_link_hash_entry *h)
48d502e1
BS
4328{
4329 bfd * dynobj;
4330
4331 dynobj = elf_hash_table (info)->dynobj;
4332
4333 /* Make sure we know what is going on here. */
4334 BFD_ASSERT (dynobj != NULL
60d67dc8 4335 && (h->is_weakalias
48d502e1
BS
4336 || (h->def_dynamic
4337 && h->ref_regular
4338 && !h->def_regular)));
4339
4340 /* If this is a weak symbol, and there is a real definition, the
4341 processor independent code will have arranged for us to see the
4342 real definition first, and we can just use the same value. */
60d67dc8 4343 if (h->is_weakalias)
48d502e1 4344 {
60d67dc8
AM
4345 struct elf_link_hash_entry *def = weakdef (h);
4346 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
4347 h->root.u.def.section = def->root.u.def.section;
4348 h->root.u.def.value = def->root.u.def.value;
48d502e1 4349 }
0f64bb02
CM
4350
4351 return TRUE;
4352}
4353
48d502e1
BS
4354/* Perform any actions needed for dynamic symbols. */
4355
4356static bfd_boolean
4357elf32_bfinfdpic_finish_dynamic_symbol
4358(bfd *output_bfd ATTRIBUTE_UNUSED,
4359 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4360 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
4361 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
0f64bb02 4362{
48d502e1
BS
4363 return TRUE;
4364}
0f64bb02 4365
48d502e1
BS
4366/* Decide whether to attempt to turn absptr or lsda encodings in
4367 shared libraries into pcrel within the given input section. */
0f64bb02 4368
48d502e1
BS
4369static bfd_boolean
4370bfinfdpic_elf_use_relative_eh_frame
4371(bfd *input_bfd ATTRIBUTE_UNUSED,
4372 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4373 asection *eh_frame_section ATTRIBUTE_UNUSED)
4374{
4375 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
4376 return FALSE;
4377}
0f64bb02 4378
48d502e1 4379/* Adjust the contents of an eh_frame_hdr section before they're output. */
0f64bb02 4380
48d502e1
BS
4381static bfd_byte
4382bfinfdpic_elf_encode_eh_address (bfd *abfd,
4383 struct bfd_link_info *info,
4384 asection *osec, bfd_vma offset,
4385 asection *loc_sec, bfd_vma loc_offset,
4386 bfd_vma *encoded)
4387{
4388 struct elf_link_hash_entry *h;
0f64bb02 4389
48d502e1
BS
4390 h = elf_hash_table (info)->hgot;
4391 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
4392
4393 if (! h || (_bfinfdpic_osec_to_segment (abfd, osec)
4394 == _bfinfdpic_osec_to_segment (abfd, loc_sec->output_section)))
4395 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
4396 loc_sec, loc_offset, encoded);
4397
4398 BFD_ASSERT (_bfinfdpic_osec_to_segment (abfd, osec)
4399 == (_bfinfdpic_osec_to_segment
4400 (abfd, h->root.u.def.section->output_section)));
4401
4402 *encoded = osec->vma + offset
4403 - (h->root.u.def.value
4404 + h->root.u.def.section->output_section->vma
4405 + h->root.u.def.section->output_offset);
4406
4407 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
0f64bb02
CM
4408}
4409
4410
48d502e1
BS
4411
4412/* Look through the relocs for a section during the first phase.
4413
4414 Besides handling virtual table relocs for gc, we have to deal with
4415 all sorts of PIC-related relocations. We describe below the
4416 general plan on how to handle such relocations, even though we only
4417 collect information at this point, storing them in hash tables for
4418 perusal of later passes.
4419
4420 32 relocations are propagated to the linker output when creating
4421 position-independent output. LO16 and HI16 relocations are not
4422 supposed to be encountered in this case.
4423
4424 LABEL16 should always be resolvable by the linker, since it's only
4425 used by branches.
4426
4427 LABEL24, on the other hand, is used by calls. If it turns out that
4428 the target of a call is a dynamic symbol, a PLT entry must be
4429 created for it, which triggers the creation of a private function
4430 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
4431
4432 GPREL relocations require the referenced symbol to be in the same
4433 segment as _gp, but this can only be checked later.
4434
4435 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
4436 exist. LABEL24 might as well, since it may require a PLT entry,
4437 that will require a got.
4438
4439 Non-FUNCDESC GOT relocations require a GOT entry to be created
4440 regardless of whether the symbol is dynamic. However, since a
4441 global symbol that turns out to not be exported may have the same
4442 address of a non-dynamic symbol, we don't assign GOT entries at
4443 this point, such that we can share them in this case. A relocation
4444 for the GOT entry always has to be created, be it to offset a
4445 private symbol by the section load address, be it to get the symbol
4446 resolved dynamically.
4447
4448 FUNCDESC GOT relocations require a GOT entry to be created, and
4449 handled as if a FUNCDESC relocation was applied to the GOT entry in
4450 an object file.
4451
4452 FUNCDESC relocations referencing a symbol that turns out to NOT be
4453 dynamic cause a private function descriptor to be created. The
4454 FUNCDESC relocation then decays to a 32 relocation that points at
4455 the private descriptor. If the symbol is dynamic, the FUNCDESC
4456 relocation is propagated to the linker output, such that the
4457 dynamic linker creates the canonical descriptor, pointing to the
4458 dynamically-resolved definition of the function.
4459
4460 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
4461 symbols that are assigned to the same segment as the GOT, but we
4462 can only check this later, after we know the complete set of
4463 symbols defined and/or exported.
4464
4465 FUNCDESC GOTOFF relocations require a function descriptor to be
4466 created and, unless lazy binding is disabled or the symbol is not
4467 dynamic, a lazy PLT entry. Since we can't tell at this point
4468 whether a symbol is going to be dynamic, we have to decide later
4469 whether to create a lazy PLT entry or bind the descriptor directly
4470 to the private function.
4471
4472 FUNCDESC_VALUE relocations are not supposed to be present in object
4473 files, but they may very well be simply propagated to the linker
4474 output, since they have no side effect.
4475
4476
4477 A function descriptor always requires a FUNCDESC_VALUE relocation.
4478 Whether it's in .plt.rel or not depends on whether lazy binding is
4479 enabled and on whether the referenced symbol is dynamic.
4480
4481 The existence of a lazy PLT requires the resolverStub lazy PLT
4482 entry to be present.
4483
4484
4485 As for assignment of GOT, PLT and lazy PLT entries, and private
4486 descriptors, we might do them all sequentially, but we can do
4487 better than that. For example, we can place GOT entries and
4488 private function descriptors referenced using 12-bit operands
4489 closer to the PIC register value, such that these relocations don't
4490 overflow. Those that are only referenced with LO16 relocations
4491 could come next, but we may as well place PLT-required function
4492 descriptors in the 12-bit range to make them shorter. Symbols
4493 referenced with LO16/HI16 may come next, but we may place
4494 additional function descriptors in the 16-bit range if we can
4495 reliably tell that we've already placed entries that are ever
4496 referenced with only LO16. PLT entries are therefore generated as
4497 small as possible, while not introducing relocation overflows in
4498 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
4499 generated before or after PLT entries, but not intermingled with
4500 them, such that we can have more lazy PLT entries in range for a
4501 branch to the resolverStub. The resolverStub should be emitted at
4502 the most distant location from the first lazy PLT entry such that
4503 it's still in range for a branch, or closer, if there isn't a need
4504 for so many lazy PLT entries. Additional lazy PLT entries may be
4505 emitted after the resolverStub, as long as branches are still in
4506 range. If the branch goes out of range, longer lazy PLT entries
4507 are emitted.
4508
4509 We could further optimize PLT and lazy PLT entries by giving them
4510 priority in assignment to closer-to-gr17 locations depending on the
4511 number of occurrences of references to them (assuming a function
4512 that's called more often is more important for performance, so its
4513 PLT entry should be faster), or taking hints from the compiler.
4514 Given infinite time and money... :-) */
0f64bb02
CM
4515
4516static bfd_boolean
48d502e1
BS
4517bfinfdpic_check_relocs (bfd *abfd, struct bfd_link_info *info,
4518 asection *sec, const Elf_Internal_Rela *relocs)
0f64bb02
CM
4519{
4520 Elf_Internal_Shdr *symtab_hdr;
5582a088 4521 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS
4522 const Elf_Internal_Rela *rel;
4523 const Elf_Internal_Rela *rel_end;
0f64bb02 4524 bfd *dynobj;
48d502e1 4525 struct bfinfdpic_relocs_info *picrel;
0f64bb02 4526
0e1862bb 4527 if (bfd_link_relocatable (info))
0f64bb02
CM
4528 return TRUE;
4529
4530 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4531 sym_hashes = elf_sym_hashes (abfd);
0f64bb02 4532
48d502e1
BS
4533 dynobj = elf_hash_table (info)->dynobj;
4534 rel_end = relocs + sec->reloc_count;
4535 for (rel = relocs; rel < rel_end; rel++)
0f64bb02 4536 {
0f64bb02 4537 struct elf_link_hash_entry *h;
48d502e1
BS
4538 unsigned long r_symndx;
4539
4540 r_symndx = ELF32_R_SYM (rel->r_info);
4541 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 4542 h = NULL;
48d502e1 4543 else
07d6d2b8 4544 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
0f64bb02
CM
4545
4546 switch (ELF32_R_TYPE (rel->r_info))
4547 {
48d502e1
BS
4548 case R_BFIN_GOT17M4:
4549 case R_BFIN_GOTHI:
4550 case R_BFIN_GOTLO:
4551 case R_BFIN_FUNCDESC_GOT17M4:
4552 case R_BFIN_FUNCDESC_GOTHI:
4553 case R_BFIN_FUNCDESC_GOTLO:
4554 case R_BFIN_GOTOFF17M4:
4555 case R_BFIN_GOTOFFHI:
4556 case R_BFIN_GOTOFFLO:
4557 case R_BFIN_FUNCDESC_GOTOFF17M4:
4558 case R_BFIN_FUNCDESC_GOTOFFHI:
4559 case R_BFIN_FUNCDESC_GOTOFFLO:
4560 case R_BFIN_FUNCDESC:
4561 case R_BFIN_FUNCDESC_VALUE:
4562 if (! IS_FDPIC (abfd))
4563 goto bad_reloc;
4564 /* Fall through. */
cb88ce9f
BS
4565 case R_BFIN_PCREL24:
4566 case R_BFIN_PCREL24_JUMP_L:
4567 case R_BFIN_BYTE4_DATA:
48d502e1 4568 if (IS_FDPIC (abfd) && ! dynobj)
0f64bb02 4569 {
48d502e1
BS
4570 elf_hash_table (info)->dynobj = dynobj = abfd;
4571 if (! _bfin_create_got_section (abfd, info))
4572 return FALSE;
0f64bb02 4573 }
48d502e1 4574 if (! IS_FDPIC (abfd))
0f64bb02 4575 {
48d502e1
BS
4576 picrel = NULL;
4577 break;
4578 }
4579 if (h != NULL)
4580 {
4581 if (h->dynindx == -1)
4582 switch (ELF_ST_VISIBILITY (h->other))
4583 {
4584 case STV_INTERNAL:
4585 case STV_HIDDEN:
4586 break;
4587 default:
4588 bfd_elf_link_record_dynamic_symbol (info, h);
4589 break;
4590 }
4591 picrel
4592 = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4593 abfd, h,
4594 rel->r_addend, INSERT);
0f64bb02 4595 }
48d502e1
BS
4596 else
4597 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
4598 (info), abfd, r_symndx,
4599 rel->r_addend, INSERT);
4600 if (! picrel)
4601 return FALSE;
0f64bb02 4602 break;
48d502e1 4603
0f64bb02 4604 default:
48d502e1 4605 picrel = NULL;
0f64bb02
CM
4606 break;
4607 }
48d502e1
BS
4608
4609 switch (ELF32_R_TYPE (rel->r_info))
07d6d2b8 4610 {
cb88ce9f
BS
4611 case R_BFIN_PCREL24:
4612 case R_BFIN_PCREL24_JUMP_L:
48d502e1 4613 if (IS_FDPIC (abfd))
2774f1a6 4614 picrel->call++;
48d502e1
BS
4615 break;
4616
4617 case R_BFIN_FUNCDESC_VALUE:
4618 picrel->relocsfdv++;
4619 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4620 picrel->relocs32--;
4621 /* Fall through. */
4622
cb88ce9f 4623 case R_BFIN_BYTE4_DATA:
48d502e1
BS
4624 if (! IS_FDPIC (abfd))
4625 break;
4626
2774f1a6 4627 picrel->sym++;
48d502e1
BS
4628 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4629 picrel->relocs32++;
4630 break;
4631
4632 case R_BFIN_GOT17M4:
2774f1a6 4633 picrel->got17m4++;
48d502e1
BS
4634 break;
4635
4636 case R_BFIN_GOTHI:
4637 case R_BFIN_GOTLO:
2774f1a6 4638 picrel->gothilo++;
48d502e1
BS
4639 break;
4640
4641 case R_BFIN_FUNCDESC_GOT17M4:
2774f1a6 4642 picrel->fdgot17m4++;
48d502e1
BS
4643 break;
4644
4645 case R_BFIN_FUNCDESC_GOTHI:
4646 case R_BFIN_FUNCDESC_GOTLO:
2774f1a6 4647 picrel->fdgothilo++;
48d502e1
BS
4648 break;
4649
4650 case R_BFIN_GOTOFF17M4:
4651 case R_BFIN_GOTOFFHI:
4652 case R_BFIN_GOTOFFLO:
2774f1a6 4653 picrel->gotoff++;
48d502e1
BS
4654 break;
4655
4656 case R_BFIN_FUNCDESC_GOTOFF17M4:
2774f1a6 4657 picrel->fdgoff17m4++;
48d502e1
BS
4658 break;
4659
4660 case R_BFIN_FUNCDESC_GOTOFFHI:
4661 case R_BFIN_FUNCDESC_GOTOFFLO:
2774f1a6 4662 picrel->fdgoffhilo++;
48d502e1
BS
4663 break;
4664
4665 case R_BFIN_FUNCDESC:
2774f1a6 4666 picrel->fd++;
48d502e1
BS
4667 picrel->relocsfd++;
4668 break;
4669
07d6d2b8
AM
4670 /* This relocation describes the C++ object vtable hierarchy.
4671 Reconstruct it for later use during GC. */
4672 case R_BFIN_GNU_VTINHERIT:
4673 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4674 return FALSE;
4675 break;
4676
4677 /* This relocation describes which C++ vtable entries are actually
4678 used. Record for later use during GC. */
4679 case R_BFIN_GNU_VTENTRY:
4680 BFD_ASSERT (h != NULL);
4681 if (h != NULL
4682 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4683 return FALSE;
4684 break;
48d502e1 4685
cb88ce9f
BS
4686 case R_BFIN_HUIMM16:
4687 case R_BFIN_LUIMM16:
4688 case R_BFIN_PCREL12_JUMP_S:
4689 case R_BFIN_PCREL10:
48d502e1
BS
4690 break;
4691
4692 default:
4693 bad_reloc:
4eca0228 4694 _bfd_error_handler
695344c0 4695 /* xgettext:c-format */
0aa13fee 4696 (_("%pB: unsupported relocation type %#x"),
d42c267e 4697 abfd, (int) ELF32_R_TYPE (rel->r_info));
48d502e1 4698 return FALSE;
07d6d2b8 4699 }
0f64bb02
CM
4700 }
4701
4702 return TRUE;
4703}
4704
48d502e1
BS
4705/* Set the right machine number for a Blackfin ELF file. */
4706
4707static bfd_boolean
4708elf32_bfin_object_p (bfd *abfd)
4709{
4710 bfd_default_set_arch_mach (abfd, bfd_arch_bfin, 0);
4711 return (((elf_elfheader (abfd)->e_flags & EF_BFIN_FDPIC) != 0)
4712 == (IS_FDPIC (abfd)));
4713}
0f64bb02 4714
0f64bb02 4715static bfd_boolean
48d502e1 4716elf32_bfin_set_private_flags (bfd * abfd, flagword flags)
0f64bb02 4717{
48d502e1
BS
4718 elf_elfheader (abfd)->e_flags = flags;
4719 elf_flags_init (abfd) = TRUE;
4720 return TRUE;
4721}
0f64bb02 4722
0f64bb02
CM
4723/* Display the flags field. */
4724static bfd_boolean
2c3fc389 4725elf32_bfin_print_private_bfd_data (bfd * abfd, void * ptr)
0f64bb02
CM
4726{
4727 FILE *file = (FILE *) ptr;
48d502e1 4728 flagword flags;
0f64bb02
CM
4729
4730 BFD_ASSERT (abfd != NULL && ptr != NULL);
4731
4732 /* Print normal ELF private data. */
4733 _bfd_elf_print_private_bfd_data (abfd, ptr);
4734
48d502e1 4735 flags = elf_elfheader (abfd)->e_flags;
0f64bb02
CM
4736
4737 /* xgettext:c-format */
4738 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
4739
48d502e1
BS
4740 if (flags & EF_BFIN_PIC)
4741 fprintf (file, " -fpic");
4742
4743 if (flags & EF_BFIN_FDPIC)
4744 fprintf (file, " -mfdpic");
4745
0f64bb02
CM
4746 fputc ('\n', file);
4747
4748 return TRUE;
4749}
4750
48d502e1
BS
4751/* Merge backend specific data from an object file to the output
4752 object file when linking. */
4753
4754static bfd_boolean
50e03d47 4755elf32_bfin_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
48d502e1 4756{
50e03d47 4757 bfd *obfd = info->output_bfd;
7a84e3da 4758 flagword old_flags, new_flags;
48d502e1
BS
4759 bfd_boolean error = FALSE;
4760
4761 new_flags = elf_elfheader (ibfd)->e_flags;
4762 old_flags = elf_elfheader (obfd)->e_flags;
4763
4764 if (new_flags & EF_BFIN_FDPIC)
4765 new_flags &= ~EF_BFIN_PIC;
4766
c7e2358a
AM
4767#ifndef DEBUG
4768 if (0)
4769#endif
4eca0228 4770 _bfd_error_handler
871b3ab2 4771 ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %pB",
dae82561 4772 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no", ibfd);
48d502e1
BS
4773
4774 if (!elf_flags_init (obfd)) /* First call, no flags set. */
4775 {
4776 elf_flags_init (obfd) = TRUE;
7a84e3da 4777 elf_elfheader (obfd)->e_flags = new_flags;
48d502e1
BS
4778 }
4779
7a84e3da 4780 if (((new_flags & EF_BFIN_FDPIC) == 0) != (! IS_FDPIC (obfd)))
48d502e1
BS
4781 {
4782 error = TRUE;
4783 if (IS_FDPIC (obfd))
4eca0228 4784 _bfd_error_handler
871b3ab2 4785 (_("%pB: cannot link non-fdpic object file into fdpic executable"),
dae82561 4786 ibfd);
48d502e1 4787 else
4eca0228 4788 _bfd_error_handler
871b3ab2 4789 (_("%pB: cannot link fdpic object file into non-fdpic executable"),
dae82561 4790 ibfd);
48d502e1
BS
4791 }
4792
4793 if (error)
4794 bfd_set_error (bfd_error_bad_value);
4795
4796 return !error;
4797}
4798\f
0f64bb02
CM
4799/* bfin ELF linker hash entry. */
4800
4801struct bfin_link_hash_entry
4802{
4803 struct elf_link_hash_entry root;
4804
4805 /* Number of PC relative relocs copied for this symbol. */
4806 struct bfin_pcrel_relocs_copied *pcrel_relocs_copied;
4807};
4808
4809/* bfin ELF linker hash table. */
4810
4811struct bfin_link_hash_table
4812{
4813 struct elf_link_hash_table root;
4814
87d72d41
AM
4815 /* Small local sym cache. */
4816 struct sym_cache sym_cache;
0f64bb02
CM
4817};
4818
4819#define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent))
4820
4821static struct bfd_hash_entry *
4822bfin_link_hash_newfunc (struct bfd_hash_entry *entry,
48d502e1 4823 struct bfd_hash_table *table, const char *string)
0f64bb02
CM
4824{
4825 struct bfd_hash_entry *ret = entry;
4826
4827 /* Allocate the structure if it has not already been allocated by a
4828 subclass. */
4829 if (ret == NULL)
4830 ret = bfd_hash_allocate (table, sizeof (struct bfin_link_hash_entry));
4831 if (ret == NULL)
4832 return ret;
4833
4834 /* Call the allocation method of the superclass. */
4835 ret = _bfd_elf_link_hash_newfunc (ret, table, string);
4836 if (ret != NULL)
4837 bfin_hash_entry (ret)->pcrel_relocs_copied = NULL;
4838
4839 return ret;
4840}
4841
4842/* Create an bfin ELF linker hash table. */
4843
4844static struct bfd_link_hash_table *
4845bfin_link_hash_table_create (bfd * abfd)
4846{
4847 struct bfin_link_hash_table *ret;
4848 bfd_size_type amt = sizeof (struct bfin_link_hash_table);
4849
22cdc249 4850 ret = bfd_zmalloc (amt);
48d502e1 4851 if (ret == NULL)
0f64bb02
CM
4852 return NULL;
4853
4854 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
66eb6687 4855 bfin_link_hash_newfunc,
4dfe6ac6
NC
4856 sizeof (struct elf_link_hash_entry),
4857 BFIN_ELF_DATA))
0f64bb02
CM
4858 {
4859 free (ret);
4860 return NULL;
4861 }
4862
87d72d41 4863 ret->sym_cache.abfd = NULL;
0f64bb02
CM
4864
4865 return &ret->root.root;
4866}
4867
4868/* The size in bytes of an entry in the procedure linkage table. */
4869
4870/* Finish up the dynamic sections. */
4871
4872static bfd_boolean
4873bfin_finish_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 4874 struct bfd_link_info *info)
0f64bb02
CM
4875{
4876 bfd *dynobj;
4877 asection *sdyn;
4878
4879 dynobj = elf_hash_table (info)->dynobj;
4880
3d4d4302 4881 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
0f64bb02
CM
4882
4883 if (elf_hash_table (info)->dynamic_sections_created)
4884 {
4885 Elf32_External_Dyn *dyncon, *dynconend;
4886
4887 BFD_ASSERT (sdyn != NULL);
4888
4889 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4890 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4891 for (; dyncon < dynconend; dyncon++)
4892 {
4893 Elf_Internal_Dyn dyn;
4894
4895 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4896
4897 }
4898
4899 }
4900 return TRUE;
4901}
4902
4903/* Finish up dynamic symbol handling. We set the contents of various
4904 dynamic sections here. */
4905
4906static bfd_boolean
4907bfin_finish_dynamic_symbol (bfd * output_bfd,
2c3fc389
NC
4908 struct bfd_link_info *info,
4909 struct elf_link_hash_entry *h,
4910 Elf_Internal_Sym * sym)
0f64bb02 4911{
0f64bb02
CM
4912 if (h->got.offset != (bfd_vma) - 1)
4913 {
4914 asection *sgot;
4915 asection *srela;
4916 Elf_Internal_Rela rela;
4917 bfd_byte *loc;
4918
4919 /* This symbol has an entry in the global offset table.
07d6d2b8 4920 Set it up. */
0f64bb02 4921
ce558b89
AM
4922 sgot = elf_hash_table (info)->sgot;
4923 srela = elf_hash_table (info)->srelgot;
0f64bb02
CM
4924 BFD_ASSERT (sgot != NULL && srela != NULL);
4925
4926 rela.r_offset = (sgot->output_section->vma
4927 + sgot->output_offset
4928 + (h->got.offset & ~(bfd_vma) 1));
4929
4930 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM
4931 locally, we just want to emit a RELATIVE reloc. Likewise if
4932 the symbol was forced to be local because of a version file.
4933 The entry in the global offset table will already have been
4934 initialized in the relocate_section function. */
0e1862bb 4935 if (bfd_link_pic (info)
0f64bb02
CM
4936 && (info->symbolic
4937 || h->dynindx == -1 || h->forced_local) && h->def_regular)
4938 {
4eca0228
AM
4939 _bfd_error_handler (_("*** check this relocation %s"),
4940 __FUNCTION__);
cb88ce9f 4941 rela.r_info = ELF32_R_INFO (0, R_BFIN_PCREL24);
0f64bb02
CM
4942 rela.r_addend = bfd_get_signed_32 (output_bfd,
4943 (sgot->contents
4944 +
4945 (h->got.
4946 offset & ~(bfd_vma) 1)));
4947 }
4948 else
4949 {
4950 bfd_put_32 (output_bfd, (bfd_vma) 0,
4951 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
cb88ce9f 4952 rela.r_info = ELF32_R_INFO (h->dynindx, R_BFIN_GOT);
0f64bb02
CM
4953 rela.r_addend = 0;
4954 }
4955
4956 loc = srela->contents;
4957 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
4958 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4959 }
4960
4961 if (h->needs_copy)
4962 {
4963 BFD_ASSERT (0);
4964 }
4965 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
5592d7ec 4966 if (strcmp (h->root.root.string, "__DYNAMIC") == 0
22edb2f1 4967 || h == elf_hash_table (info)->hgot)
0f64bb02
CM
4968 sym->st_shndx = SHN_ABS;
4969
4970 return TRUE;
4971}
4972
4973/* Adjust a symbol defined by a dynamic object and referenced by a
4974 regular object. The current definition is in some section of the
4975 dynamic object, but we're not including those sections. We have to
4976 change the definition to something the rest of the link can
4977 understand. */
4978
4979static bfd_boolean
4980bfin_adjust_dynamic_symbol (struct bfd_link_info *info,
2c3fc389 4981 struct elf_link_hash_entry *h)
0f64bb02
CM
4982{
4983 bfd *dynobj;
4984 asection *s;
4985 unsigned int power_of_two;
4986
4987 dynobj = elf_hash_table (info)->dynobj;
4988
4989 /* Make sure we know what is going on here. */
4990 BFD_ASSERT (dynobj != NULL
4991 && (h->needs_plt
60d67dc8 4992 || h->is_weakalias
0f64bb02
CM
4993 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
4994
4995 /* If this is a function, put it in the procedure linkage table. We
4996 will fill in the contents of the procedure linkage table later,
4997 when we know the address of the .got section. */
4998 if (h->type == STT_FUNC || h->needs_plt)
4999 {
5000 BFD_ASSERT(0);
5001 }
5002
5003 /* If this is a weak symbol, and there is a real definition, the
5004 processor independent code will have arranged for us to see the
5005 real definition first, and we can just use the same value. */
60d67dc8 5006 if (h->is_weakalias)
0f64bb02 5007 {
60d67dc8
AM
5008 struct elf_link_hash_entry *def = weakdef (h);
5009 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5010 h->root.u.def.section = def->root.u.def.section;
5011 h->root.u.def.value = def->root.u.def.value;
0f64bb02
CM
5012 return TRUE;
5013 }
5014
5015 /* This is a reference to a symbol defined by a dynamic object which
5016 is not a function. */
5017
5018 /* If we are creating a shared library, we must presume that the
5019 only references to the symbol are via the global offset table.
5020 For such cases we need not do anything here; the relocations will
5021 be handled correctly by relocate_section. */
0e1862bb 5022 if (bfd_link_pic (info))
0f64bb02
CM
5023 return TRUE;
5024
5025 /* We must allocate the symbol in our .dynbss section, which will
5026 become part of the .bss section of the executable. There will be
5027 an entry for this symbol in the .dynsym section. The dynamic
5028 object will contain position independent code, so all references
5029 from the dynamic object to this symbol will go through the global
5030 offset table. The dynamic linker will use the .dynsym entry to
5031 determine the address it must put in the global offset table, so
5032 both the dynamic object and the regular object will refer to the
5033 same memory location for the variable. */
5034
3d4d4302 5035 s = bfd_get_linker_section (dynobj, ".dynbss");
0f64bb02
CM
5036 BFD_ASSERT (s != NULL);
5037
1b857aee
NC
5038#if 0 /* Bfin does not currently have a COPY reloc. */
5039 /* We must generate a R_BFIN_COPY reloc to tell the dynamic linker to
0f64bb02
CM
5040 copy the initial value out of the dynamic object and into the
5041 runtime process image. We need to remember the offset into the
5042 .rela.bss section we are going to use. */
5043 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5044 {
5045 asection *srel;
5046
3d4d4302 5047 srel = bfd_get_linker_section (dynobj, ".rela.bss");
0f64bb02
CM
5048 BFD_ASSERT (srel != NULL);
5049 srel->size += sizeof (Elf32_External_Rela);
5050 h->needs_copy = 1;
5051 }
1b857aee
NC
5052#else
5053 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5054 {
4eca0228 5055 _bfd_error_handler (_("the bfin target does not currently support the generation of copy relocations"));
1b857aee
NC
5056 return FALSE;
5057 }
5058#endif
0f64bb02
CM
5059 /* We need to figure out the alignment required for this symbol. I
5060 have no idea how ELF linkers handle this. */
5061 power_of_two = bfd_log2 (h->size);
5062 if (power_of_two > 3)
5063 power_of_two = 3;
5064
5065 /* Apply the required alignment. */
5066 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
5067 if (power_of_two > bfd_get_section_alignment (dynobj, s))
5068 {
5069 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
5070 return FALSE;
5071 }
5072
5073 /* Define the symbol as being at this point in the section. */
5074 h->root.u.def.section = s;
5075 h->root.u.def.value = s->size;
5076
5077 /* Increment the section size to make room for the symbol. */
5078 s->size += h->size;
5079
5080 return TRUE;
5081}
5082
5083/* The bfin linker needs to keep track of the number of relocs that it
5084 decides to copy in check_relocs for each symbol. This is so that it
5085 can discard PC relative relocs if it doesn't need them when linking
5086 with -Bsymbolic. We store the information in a field extending the
5087 regular ELF linker hash table. */
5088
5089/* This structure keeps track of the number of PC relative relocs we have
5090 copied for a given symbol. */
5091
5092struct bfin_pcrel_relocs_copied
5093{
5094 /* Next section. */
5095 struct bfin_pcrel_relocs_copied *next;
5096 /* A section in dynobj. */
5097 asection *section;
5098 /* Number of relocs copied in this section. */
5099 bfd_size_type count;
5100};
5101
5102/* This function is called via elf_link_hash_traverse if we are
5103 creating a shared object. In the -Bsymbolic case it discards the
5104 space allocated to copy PC relative relocs against symbols which
5105 are defined in regular objects. For the normal shared case, it
5106 discards space for pc-relative relocs that have become local due to
5107 symbol visibility changes. We allocated space for them in the
5108 check_relocs routine, but we won't fill them in in the
5109 relocate_section routine.
5110
5111 We also check whether any of the remaining relocations apply
5112 against a readonly section, and set the DF_TEXTREL flag in this
5113 case. */
5114
5115static bfd_boolean
2c3fc389 5116bfin_discard_copies (struct elf_link_hash_entry *h, void * inf)
0f64bb02
CM
5117{
5118 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5119 struct bfin_pcrel_relocs_copied *s;
5120
0f64bb02
CM
5121 if (!h->def_regular || (!info->symbolic && !h->forced_local))
5122 {
5123 if ((info->flags & DF_TEXTREL) == 0)
5124 {
5125 /* Look for relocations against read-only sections. */
5126 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5127 s != NULL; s = s->next)
5128 if ((s->section->flags & SEC_READONLY) != 0)
5129 {
5130 info->flags |= DF_TEXTREL;
5131 break;
5132 }
5133 }
5134
5135 return TRUE;
5136 }
5137
5138 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5139 s != NULL; s = s->next)
5140 s->section->size -= s->count * sizeof (Elf32_External_Rela);
5141
5142 return TRUE;
5143}
5144
0f64bb02
CM
5145static bfd_boolean
5146bfin_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 5147 struct bfd_link_info *info)
0f64bb02
CM
5148{
5149 bfd *dynobj;
5150 asection *s;
5151 bfd_boolean relocs;
5152
5153 dynobj = elf_hash_table (info)->dynobj;
5154 BFD_ASSERT (dynobj != NULL);
5155
5156 if (elf_hash_table (info)->dynamic_sections_created)
5157 {
5158 /* Set the contents of the .interp section to the interpreter. */
9d45a7de 5159 if (bfd_link_executable (info) && !info->nointerp)
0f64bb02 5160 {
3d4d4302 5161 s = bfd_get_linker_section (dynobj, ".interp");
0f64bb02
CM
5162 BFD_ASSERT (s != NULL);
5163 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5164 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5165 }
5166 }
5167 else
5168 {
5169 /* We may have created entries in the .rela.got section.
07d6d2b8
AM
5170 However, if we are not creating the dynamic sections, we will
5171 not actually use these entries. Reset the size of .rela.got,
5172 which will cause it to get stripped from the output file
5173 below. */
ce558b89 5174 s = elf_hash_table (info)->srelgot;
0f64bb02
CM
5175 if (s != NULL)
5176 s->size = 0;
5177 }
5178
5179 /* If this is a -Bsymbolic shared link, then we need to discard all
5180 PC relative relocs against symbols defined in a regular object.
5181 For the normal shared case we discard the PC relative relocs
5182 against symbols that have become local due to visibility changes.
5183 We allocated space for them in the check_relocs routine, but we
5184 will not fill them in in the relocate_section routine. */
0e1862bb 5185 if (bfd_link_pic (info))
0f64bb02 5186 elf_link_hash_traverse (elf_hash_table (info),
2c3fc389 5187 bfin_discard_copies, info);
0f64bb02
CM
5188
5189 /* The check_relocs and adjust_dynamic_symbol entry points have
5190 determined the sizes of the various dynamic sections. Allocate
5191 memory for them. */
5192 relocs = FALSE;
5193 for (s = dynobj->sections; s != NULL; s = s->next)
5194 {
5195 const char *name;
5196 bfd_boolean strip;
5197
5198 if ((s->flags & SEC_LINKER_CREATED) == 0)
5199 continue;
5200
5201 /* It's OK to base decisions on the section name, because none
07d6d2b8 5202 of the dynobj section names depend upon the input files. */
0f64bb02
CM
5203 name = bfd_get_section_name (dynobj, s);
5204
5205 strip = FALSE;
5206
0112cd26 5207 if (CONST_STRNEQ (name, ".rela"))
0f64bb02
CM
5208 {
5209 if (s->size == 0)
5210 {
5211 /* If we don't need this section, strip it from the
07d6d2b8
AM
5212 output file. This is mostly to handle .rela.bss and
5213 .rela.plt. We must create both sections in
5214 create_dynamic_sections, because they must be created
5215 before the linker maps input sections to output
5216 sections. The linker does that before
5217 adjust_dynamic_symbol is called, and it is that
5218 function which decides whether anything needs to go
5219 into these sections. */
0f64bb02
CM
5220 strip = TRUE;
5221 }
5222 else
5223 {
5224 relocs = TRUE;
5225
5226 /* We use the reloc_count field as a counter if we need
07d6d2b8 5227 to copy relocs into the output file. */
0f64bb02
CM
5228 s->reloc_count = 0;
5229 }
5230 }
0112cd26 5231 else if (! CONST_STRNEQ (name, ".got"))
0f64bb02
CM
5232 {
5233 /* It's not one of our sections, so don't allocate space. */
5234 continue;
5235 }
5236
5237 if (strip)
5238 {
5239 s->flags |= SEC_EXCLUDE;
5240 continue;
5241 }
5242
5243 /* Allocate memory for the section contents. */
5244 /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
07d6d2b8
AM
5245 Unused entries should be reclaimed before the section's contents
5246 are written out, but at the moment this does not happen. Thus in
5247 order to prevent writing out garbage, we initialise the section's
5248 contents to zero. */
0f64bb02
CM
5249 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
5250 if (s->contents == NULL && s->size != 0)
5251 return FALSE;
5252 }
5253
5254 if (elf_hash_table (info)->dynamic_sections_created)
5255 {
5256 /* Add some entries to the .dynamic section. We fill in the
07d6d2b8
AM
5257 values later, in bfin_finish_dynamic_sections, but we
5258 must add the entries now so that we get the correct size for
5259 the .dynamic section. The DT_DEBUG entry is filled in by the
5260 dynamic linker and used by the debugger. */
0f64bb02
CM
5261#define add_dynamic_entry(TAG, VAL) \
5262 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
5263
0e1862bb 5264 if (!bfd_link_pic (info))
0f64bb02
CM
5265 {
5266 if (!add_dynamic_entry (DT_DEBUG, 0))
5267 return FALSE;
5268 }
5269
5270
5271 if (relocs)
5272 {
5273 if (!add_dynamic_entry (DT_RELA, 0)
5274 || !add_dynamic_entry (DT_RELASZ, 0)
5275 || !add_dynamic_entry (DT_RELAENT,
5276 sizeof (Elf32_External_Rela)))
5277 return FALSE;
5278 }
5279
5280 if ((info->flags & DF_TEXTREL) != 0)
5281 {
5282 if (!add_dynamic_entry (DT_TEXTREL, 0))
5283 return FALSE;
5284 }
5285 }
5286#undef add_dynamic_entry
5287
5288 return TRUE;
5289}
48d502e1 5290\f
0f64bb02
CM
5291/* Given a .data section and a .emreloc in-memory section, store
5292 relocation information into the .emreloc section which can be
5293 used at runtime to relocate the section. This is called by the
5294 linker when the --embedded-relocs switch is used. This is called
5295 after the add_symbols entry point has been called for all the
5296 objects, and before the final_link entry point is called. */
5297
5298bfd_boolean
2c3fc389
NC
5299bfd_bfin_elf32_create_embedded_relocs (bfd *abfd,
5300 struct bfd_link_info *info,
5301 asection *datasec,
5302 asection *relsec,
5303 char **errmsg)
0f64bb02
CM
5304{
5305 Elf_Internal_Shdr *symtab_hdr;
5306 Elf_Internal_Sym *isymbuf = NULL;
5307 Elf_Internal_Rela *internal_relocs = NULL;
5308 Elf_Internal_Rela *irel, *irelend;
5309 bfd_byte *p;
5310 bfd_size_type amt;
5311
0e1862bb 5312 BFD_ASSERT (! bfd_link_relocatable (info));
0f64bb02
CM
5313
5314 *errmsg = NULL;
5315
5316 if (datasec->reloc_count == 0)
5317 return TRUE;
5318
5319 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5320
5321 /* Get a copy of the native relocations. */
5322 internal_relocs = (_bfd_elf_link_read_relocs
2c3fc389 5323 (abfd, datasec, NULL, (Elf_Internal_Rela *) NULL,
0f64bb02
CM
5324 info->keep_memory));
5325 if (internal_relocs == NULL)
5326 goto error_return;
5327
5328 amt = (bfd_size_type) datasec->reloc_count * 12;
5329 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
5330 if (relsec->contents == NULL)
5331 goto error_return;
5332
5333 p = relsec->contents;
5334
5335 irelend = internal_relocs + datasec->reloc_count;
5336 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
5337 {
5338 asection *targetsec;
5339
5340 /* We are going to write a four byte longword into the runtime
5341 reloc section. The longword will be the address in the data
5342 section which must be relocated. It is followed by the name
5343 of the target section NUL-padded or truncated to 8
5344 characters. */
5345
5346 /* We can only relocate absolute longword relocs at run time. */
cb88ce9f 5347 if (ELF32_R_TYPE (irel->r_info) != (int) R_BFIN_BYTE4_DATA)
0f64bb02 5348 {
0aa13fee 5349 *errmsg = _("unsupported relocation type");
0f64bb02
CM
5350 bfd_set_error (bfd_error_bad_value);
5351 goto error_return;
5352 }
5353
5354 /* Get the target section referred to by the reloc. */
5355 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5356 {
5357 /* A local symbol. */
5358 Elf_Internal_Sym *isym;
5359
5360 /* Read this BFD's local symbols if we haven't done so already. */
5361 if (isymbuf == NULL)
5362 {
5363 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5364 if (isymbuf == NULL)
5365 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5366 symtab_hdr->sh_info, 0,
5367 NULL, NULL, NULL);
5368 if (isymbuf == NULL)
5369 goto error_return;
5370 }
5371
5372 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5373 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
5374 }
5375 else
5376 {
5377 unsigned long indx;
5378 struct elf_link_hash_entry *h;
5379
5380 /* An external symbol. */
5381 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5382 h = elf_sym_hashes (abfd)[indx];
5383 BFD_ASSERT (h != NULL);
5384 if (h->root.type == bfd_link_hash_defined
5385 || h->root.type == bfd_link_hash_defweak)
5386 targetsec = h->root.u.def.section;
5387 else
5388 targetsec = NULL;
5389 }
5390
5391 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
5392 memset (p + 4, 0, 8);
5393 if (targetsec != NULL)
9ba4c445 5394 strncpy ((char *) p + 4, targetsec->output_section->name, 8);
0f64bb02
CM
5395 }
5396
5397 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
5398 free (isymbuf);
5399 if (internal_relocs != NULL
5400 && elf_section_data (datasec)->relocs != internal_relocs)
5401 free (internal_relocs);
5402 return TRUE;
5403
5404error_return:
5405 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
5406 free (isymbuf);
5407 if (internal_relocs != NULL
5408 && elf_section_data (datasec)->relocs != internal_relocs)
5409 free (internal_relocs);
5410 return FALSE;
5411}
b0a0b978
JZ
5412
5413struct bfd_elf_special_section const elf32_bfin_special_sections[] =
5414{
5415 { ".l1.text", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
5416 { ".l1.data", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
07d6d2b8 5417 { NULL, 0, 0, 0, 0 }
b0a0b978
JZ
5418};
5419
48d502e1 5420\f
6d00b590 5421#define TARGET_LITTLE_SYM bfin_elf32_vec
0f64bb02
CM
5422#define TARGET_LITTLE_NAME "elf32-bfin"
5423#define ELF_ARCH bfd_arch_bfin
ae95ffa6 5424#define ELF_TARGET_ID BFIN_ELF_DATA
3b55e94a 5425#define ELF_MACHINE_CODE EM_BLACKFIN
0f64bb02
CM
5426#define ELF_MAXPAGESIZE 0x1000
5427#define elf_symbol_leading_char '_'
5428
5429#define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup
157090f7
AM
5430#define bfd_elf32_bfd_reloc_name_lookup \
5431 bfin_bfd_reloc_name_lookup
0f64bb02 5432#define elf_info_to_howto bfin_info_to_howto
f3185997 5433#define elf_info_to_howto_rel NULL
48d502e1 5434#define elf_backend_object_p elf32_bfin_object_p
0f64bb02
CM
5435
5436#define bfd_elf32_bfd_is_local_label_name \
07d6d2b8 5437 bfin_is_local_label_name
0f64bb02
CM
5438#define bfin_hash_table(p) \
5439 ((struct bfin_link_hash_table *) (p)->hash)
5440
5441
5442
5443#define elf_backend_create_dynamic_sections \
07d6d2b8 5444 _bfd_elf_create_dynamic_sections
0f64bb02 5445#define bfd_elf32_bfd_link_hash_table_create \
07d6d2b8
AM
5446 bfin_link_hash_table_create
5447#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
0f64bb02 5448
07d6d2b8 5449#define elf_backend_check_relocs bfin_check_relocs
0f64bb02 5450#define elf_backend_adjust_dynamic_symbol \
07d6d2b8 5451 bfin_adjust_dynamic_symbol
0f64bb02 5452#define elf_backend_size_dynamic_sections \
07d6d2b8
AM
5453 bfin_size_dynamic_sections
5454#define elf_backend_relocate_section bfin_relocate_section
0f64bb02 5455#define elf_backend_finish_dynamic_symbol \
07d6d2b8 5456 bfin_finish_dynamic_symbol
0f64bb02 5457#define elf_backend_finish_dynamic_sections \
07d6d2b8
AM
5458 bfin_finish_dynamic_sections
5459#define elf_backend_gc_mark_hook bfin_gc_mark_hook
0f64bb02 5460#define bfd_elf32_bfd_merge_private_bfd_data \
07d6d2b8 5461 elf32_bfin_merge_private_bfd_data
0f64bb02 5462#define bfd_elf32_bfd_set_private_flags \
07d6d2b8 5463 elf32_bfin_set_private_flags
0f64bb02 5464#define bfd_elf32_bfd_print_private_bfd_data \
07d6d2b8 5465 elf32_bfin_print_private_bfd_data
781303ce 5466#define elf_backend_final_write_processing \
07d6d2b8
AM
5467 elf32_bfin_final_write_processing
5468#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
04c3a755 5469#define elf_backend_stack_align 8
0f64bb02 5470#define elf_backend_can_gc_sections 1
b0a0b978 5471#define elf_backend_special_sections elf32_bfin_special_sections
0f64bb02
CM
5472#define elf_backend_can_refcount 1
5473#define elf_backend_want_got_plt 0
5474#define elf_backend_plt_readonly 1
5475#define elf_backend_want_plt_sym 0
07d6d2b8
AM
5476#define elf_backend_got_header_size 12
5477#define elf_backend_rela_normal 1
0f64bb02 5478
48d502e1
BS
5479#include "elf32-target.h"
5480
5481#undef TARGET_LITTLE_SYM
07d6d2b8 5482#define TARGET_LITTLE_SYM bfin_elf32_fdpic_vec
48d502e1
BS
5483#undef TARGET_LITTLE_NAME
5484#define TARGET_LITTLE_NAME "elf32-bfinfdpic"
5485#undef elf32_bed
07d6d2b8 5486#define elf32_bed elf32_bfinfdpic_bed
48d502e1 5487
48d502e1 5488#undef elf_backend_got_header_size
07d6d2b8 5489#define elf_backend_got_header_size 0
48d502e1
BS
5490
5491#undef elf_backend_relocate_section
07d6d2b8 5492#define elf_backend_relocate_section bfinfdpic_relocate_section
48d502e1 5493#undef elf_backend_check_relocs
07d6d2b8 5494#define elf_backend_check_relocs bfinfdpic_check_relocs
48d502e1
BS
5495
5496#undef bfd_elf32_bfd_link_hash_table_create
5497#define bfd_elf32_bfd_link_hash_table_create \
5498 bfinfdpic_elf_link_hash_table_create
5499#undef elf_backend_always_size_sections
5500#define elf_backend_always_size_sections \
5501 elf32_bfinfdpic_always_size_sections
48d502e1
BS
5502
5503#undef elf_backend_create_dynamic_sections
5504#define elf_backend_create_dynamic_sections \
5505 elf32_bfinfdpic_create_dynamic_sections
5506#undef elf_backend_adjust_dynamic_symbol
5507#define elf_backend_adjust_dynamic_symbol \
5508 elf32_bfinfdpic_adjust_dynamic_symbol
5509#undef elf_backend_size_dynamic_sections
5510#define elf_backend_size_dynamic_sections \
5511 elf32_bfinfdpic_size_dynamic_sections
5512#undef elf_backend_finish_dynamic_symbol
5513#define elf_backend_finish_dynamic_symbol \
5514 elf32_bfinfdpic_finish_dynamic_symbol
5515#undef elf_backend_finish_dynamic_sections
5516#define elf_backend_finish_dynamic_sections \
5517 elf32_bfinfdpic_finish_dynamic_sections
5518
6a9adeca
BS
5519#undef elf_backend_discard_info
5520#define elf_backend_discard_info \
5521 bfinfdpic_elf_discard_info
48d502e1
BS
5522#undef elf_backend_can_make_relative_eh_frame
5523#define elf_backend_can_make_relative_eh_frame \
5524 bfinfdpic_elf_use_relative_eh_frame
5525#undef elf_backend_can_make_lsda_relative_eh_frame
5526#define elf_backend_can_make_lsda_relative_eh_frame \
5527 bfinfdpic_elf_use_relative_eh_frame
5528#undef elf_backend_encode_eh_address
5529#define elf_backend_encode_eh_address \
5530 bfinfdpic_elf_encode_eh_address
5531
5532#undef elf_backend_may_use_rel_p
07d6d2b8 5533#define elf_backend_may_use_rel_p 1
48d502e1 5534#undef elf_backend_may_use_rela_p
07d6d2b8 5535#define elf_backend_may_use_rela_p 1
48d502e1
BS
5536/* We use REL for dynamic relocations only. */
5537#undef elf_backend_default_use_rela_p
07d6d2b8 5538#define elf_backend_default_use_rela_p 1
48d502e1
BS
5539
5540#undef elf_backend_omit_section_dynsym
5541#define elf_backend_omit_section_dynsym _bfinfdpic_link_omit_section_dynsym
0f64bb02
CM
5542
5543#include "elf32-target.h"
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