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[deliverable/binutils-gdb.git] / bfd / elf32-bfin.c
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3b55e94a 1/* ADI Blackfin BFD support for 32-bit ELF.
219d1afa 2 Copyright (C) 2005-2018 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"
0f64bb02
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"));
0f64bb02
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
BS
144bfin_imm16_reloc (bfd *abfd,
145 arelent *reloc_entry,
146 asymbol *symbol,
2c3fc389 147 void * data,
3b55e94a
BS
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;
0f64bb02
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))
0f64bb02
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 }
0f64bb02
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,
284 asymbol *symbol,
2c3fc389 285 void * data,
0f64bb02
CM
286 asection *input_section,
287 bfd *output_bfd,
288 char **error_message ATTRIBUTE_UNUSED)
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
1043static void
1044bfin_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
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
1059 cache_ptr->howto = (reloc_howto_type *) NULL;
0f64bb02 1060}
157090f7 1061
0f64bb02
CM
1062/* Given a BFD reloc type, return the howto. */
1063static reloc_howto_type *
1064bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
1065 bfd_reloc_code_real_type code)
1066{
1067 unsigned int i;
0ba38529 1068 unsigned int r_type = (unsigned int) -1;
0f64bb02 1069
0ba38529 1070 for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); i--;)
0f64bb02
CM
1071 if (bfin_reloc_map[i].bfd_reloc_val == code)
1072 r_type = bfin_reloc_map[i].bfin_reloc_val;
1073
0ba38529 1074 if (r_type <= BFIN_RELOC_MAX)
0f64bb02
CM
1075 return &bfin_howto_table [r_type];
1076
0f64bb02
CM
1077 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1078 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1079
1080 return (reloc_howto_type *) NULL;
157090f7 1081}
0f64bb02 1082
157090f7
AM
1083static reloc_howto_type *
1084bfin_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1085 const char *r_name)
1086{
1087 unsigned int i;
1088
1089 for (i = 0;
1090 i < (sizeof (bfin_howto_table)
1091 / sizeof (bfin_howto_table[0]));
1092 i++)
1093 if (bfin_howto_table[i].name != NULL
1094 && strcasecmp (bfin_howto_table[i].name, r_name) == 0)
1095 return &bfin_howto_table[i];
1096
1097 for (i = 0;
1098 i < (sizeof (bfin_gnuext_howto_table)
1099 / sizeof (bfin_gnuext_howto_table[0]));
1100 i++)
1101 if (bfin_gnuext_howto_table[i].name != NULL
1102 && strcasecmp (bfin_gnuext_howto_table[i].name, r_name) == 0)
1103 return &bfin_gnuext_howto_table[i];
1104
1105 return NULL;
0f64bb02 1106}
157090f7 1107
0f64bb02
CM
1108/* Given a bfin relocation type, return the howto. */
1109static reloc_howto_type *
1110bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
2c3fc389 1111 unsigned int r_type)
0f64bb02
CM
1112{
1113 if (r_type <= BFIN_RELOC_MAX)
1114 return &bfin_howto_table [r_type];
1115
0f64bb02
CM
1116 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1117 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1118
1119 return (reloc_howto_type *) NULL;
0f64bb02
CM
1120}
1121
781303ce
MF
1122/* Set by ld emulation if --code-in-l1. */
1123bfd_boolean elf32_bfin_code_in_l1 = 0;
1124
1125/* Set by ld emulation if --data-in-l1. */
1126bfd_boolean elf32_bfin_data_in_l1 = 0;
1127
1128static void
1129elf32_bfin_final_write_processing (bfd *abfd,
1130 bfd_boolean linker ATTRIBUTE_UNUSED)
1131{
1132 if (elf32_bfin_code_in_l1)
1133 elf_elfheader (abfd)->e_flags |= EF_BFIN_CODE_IN_L1;
1134 if (elf32_bfin_data_in_l1)
1135 elf_elfheader (abfd)->e_flags |= EF_BFIN_DATA_IN_L1;
1136}
1137
0f64bb02
CM
1138/* Return TRUE if the name is a local label.
1139 bfin local labels begin with L$. */
1140static bfd_boolean
2c3fc389 1141bfin_is_local_label_name (bfd *abfd, const char *label)
0f64bb02
CM
1142{
1143 if (label[0] == 'L' && label[1] == '$' )
1144 return TRUE;
1145
1146 return _bfd_elf_is_local_label_name (abfd, label);
1147}
c96a8570
BS
1148\f
1149/* Look through the relocs for a section during the first phase, and
1150 allocate space in the global offset table or procedure linkage
1151 table. */
0f64bb02 1152
c96a8570
BS
1153static bfd_boolean
1154bfin_check_relocs (bfd * abfd,
1155 struct bfd_link_info *info,
1156 asection *sec,
07d6d2b8 1157 const Elf_Internal_Rela *relocs)
48d502e1 1158{
c96a8570
BS
1159 bfd *dynobj;
1160 Elf_Internal_Shdr *symtab_hdr;
1161 struct elf_link_hash_entry **sym_hashes;
1162 bfd_signed_vma *local_got_refcounts;
1163 const Elf_Internal_Rela *rel;
1164 const Elf_Internal_Rela *rel_end;
48d502e1 1165 asection *sgot;
c96a8570 1166 asection *srelgot;
2c3fc389 1167
0e1862bb 1168 if (bfd_link_relocatable (info))
c96a8570 1169 return TRUE;
48d502e1 1170
c96a8570
BS
1171 dynobj = elf_hash_table (info)->dynobj;
1172 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1173 sym_hashes = elf_sym_hashes (abfd);
1174 local_got_refcounts = elf_local_got_refcounts (abfd);
48d502e1 1175
c96a8570
BS
1176 sgot = NULL;
1177 srelgot = NULL;
48d502e1 1178
c96a8570
BS
1179 rel_end = relocs + sec->reloc_count;
1180 for (rel = relocs; rel < rel_end; rel++)
48d502e1 1181 {
c96a8570
BS
1182 unsigned long r_symndx;
1183 struct elf_link_hash_entry *h;
48d502e1 1184
c96a8570
BS
1185 r_symndx = ELF32_R_SYM (rel->r_info);
1186 if (r_symndx < symtab_hdr->sh_info)
1187 h = NULL;
1188 else
81fbe831
AM
1189 {
1190 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
81fbe831 1191 }
48d502e1 1192
c96a8570
BS
1193 switch (ELF32_R_TYPE (rel->r_info))
1194 {
1195 /* This relocation describes the C++ object vtable hierarchy.
07d6d2b8
AM
1196 Reconstruct it for later use during GC. */
1197 case R_BFIN_GNU_VTINHERIT:
1198 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1199 return FALSE;
1200 break;
1201
1202 /* This relocation describes which C++ vtable entries
1203 are actually used. Record for later use during GC. */
1204 case R_BFIN_GNU_VTENTRY:
1205 BFD_ASSERT (h != NULL);
1206 if (h != NULL
1207 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1208 return FALSE;
1209 break;
48d502e1 1210
cb88ce9f 1211 case R_BFIN_GOT:
c96a8570
BS
1212 if (h != NULL
1213 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1214 break;
1215 /* Fall through. */
48d502e1 1216
c96a8570
BS
1217 if (dynobj == NULL)
1218 {
1219 /* Create the .got section. */
1220 elf_hash_table (info)->dynobj = dynobj = abfd;
1221 if (!_bfd_elf_create_got_section (dynobj, info))
1222 return FALSE;
1223 }
48d502e1 1224
ce558b89
AM
1225 sgot = elf_hash_table (info)->sgot;
1226 srelgot = elf_hash_table (info)->srelgot;
1227 BFD_ASSERT (sgot != NULL);
48d502e1 1228
c96a8570
BS
1229 if (h != NULL)
1230 {
1231 if (h->got.refcount == 0)
1232 {
1233 /* Make sure this symbol is output as a dynamic symbol. */
1234 if (h->dynindx == -1 && !h->forced_local)
1235 {
1236 if (!bfd_elf_link_record_dynamic_symbol (info, h))
1237 return FALSE;
1238 }
48d502e1 1239
c96a8570
BS
1240 /* Allocate space in the .got section. */
1241 sgot->size += 4;
1242 /* Allocate relocation space. */
1243 srelgot->size += sizeof (Elf32_External_Rela);
1244 }
1245 h->got.refcount++;
1246 }
1247 else
1248 {
1249 /* This is a global offset table entry for a local symbol. */
1250 if (local_got_refcounts == NULL)
1251 {
1252 bfd_size_type size;
48d502e1 1253
c96a8570
BS
1254 size = symtab_hdr->sh_info;
1255 size *= sizeof (bfd_signed_vma);
1256 local_got_refcounts = ((bfd_signed_vma *)
1257 bfd_zalloc (abfd, size));
1258 if (local_got_refcounts == NULL)
1259 return FALSE;
1260 elf_local_got_refcounts (abfd) = local_got_refcounts;
1261 }
1262 if (local_got_refcounts[r_symndx] == 0)
1263 {
1264 sgot->size += 4;
0e1862bb 1265 if (bfd_link_pic (info))
c96a8570
BS
1266 {
1267 /* If we are generating a shared object, we need to
07d6d2b8
AM
1268 output a R_68K_RELATIVE reloc so that the dynamic
1269 linker can adjust this GOT entry. */
c96a8570
BS
1270 srelgot->size += sizeof (Elf32_External_Rela);
1271 }
1272 }
1273 local_got_refcounts[r_symndx]++;
1274 }
1275 break;
48d502e1 1276
c96a8570
BS
1277 default:
1278 break;
1279 }
1280 }
1281
1282 return TRUE;
48d502e1
BS
1283}
1284
c96a8570 1285static enum elf_reloc_type_class
7e612e98
AM
1286elf32_bfin_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1287 const asection *rel_sec ATTRIBUTE_UNUSED,
1288 const Elf_Internal_Rela * rela)
48d502e1 1289{
c96a8570
BS
1290 switch ((int) ELF32_R_TYPE (rela->r_info))
1291 {
1292 default:
1293 return reloc_class_normal;
1294 }
1295}
1296\f
1297static bfd_reloc_status_type
1298bfin_final_link_relocate (Elf_Internal_Rela *rel, reloc_howto_type *howto,
1299 bfd *input_bfd, asection *input_section,
1300 bfd_byte *contents, bfd_vma address,
1301 bfd_vma value, bfd_vma addend)
1302{
1303 int r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 1304
cb88ce9f 1305 if (r_type == R_BFIN_PCREL24 || r_type == R_BFIN_PCREL24_JUMP_L)
c96a8570
BS
1306 {
1307 bfd_reloc_status_type r = bfd_reloc_ok;
1308 bfd_vma x;
48d502e1 1309
c96a8570
BS
1310 if (address > bfd_get_section_limit (input_bfd, input_section))
1311 return bfd_reloc_outofrange;
48d502e1 1312
c96a8570 1313 value += addend;
48d502e1 1314
c96a8570
BS
1315 /* Perform usual pc-relative correction. */
1316 value -= input_section->output_section->vma + input_section->output_offset;
1317 value -= address;
48d502e1 1318
c96a8570
BS
1319 /* We are getting reloc_entry->address 2 byte off from
1320 the start of instruction. Assuming absolute postion
1321 of the reloc data. But, following code had been written assuming
1322 reloc address is starting at begining of instruction.
1323 To compensate that I have increased the value of
1324 relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
48d502e1 1325
c96a8570
BS
1326 value += 2;
1327 address -= 2;
48d502e1 1328
c96a8570
BS
1329 if ((value & 0xFF000000) != 0
1330 && (value & 0xFF000000) != 0xFF000000)
1331 r = bfd_reloc_overflow;
48d502e1 1332
c96a8570 1333 value >>= 1;
48d502e1 1334
c96a8570
BS
1335 x = bfd_get_16 (input_bfd, contents + address);
1336 x = (x & 0xff00) | ((value >> 16) & 0xff);
1337 bfd_put_16 (input_bfd, x, contents + address);
48d502e1 1338
c96a8570
BS
1339 x = bfd_get_16 (input_bfd, contents + address + 2);
1340 x = value & 0xFFFF;
1341 bfd_put_16 (input_bfd, x, contents + address + 2);
1342 return r;
1343 }
48d502e1 1344
c96a8570
BS
1345 return _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1346 rel->r_offset, value, addend);
48d502e1 1347
48d502e1
BS
1348}
1349
c96a8570
BS
1350static bfd_boolean
1351bfin_relocate_section (bfd * output_bfd,
1352 struct bfd_link_info *info,
1353 bfd * input_bfd,
1354 asection * input_section,
1355 bfd_byte * contents,
1356 Elf_Internal_Rela * relocs,
1357 Elf_Internal_Sym * local_syms,
1358 asection ** local_sections)
48d502e1 1359{
c96a8570
BS
1360 bfd *dynobj;
1361 Elf_Internal_Shdr *symtab_hdr;
1362 struct elf_link_hash_entry **sym_hashes;
1363 bfd_vma *local_got_offsets;
1364 asection *sgot;
c96a8570
BS
1365 Elf_Internal_Rela *rel;
1366 Elf_Internal_Rela *relend;
1367 int i = 0;
48d502e1 1368
c96a8570
BS
1369 dynobj = elf_hash_table (info)->dynobj;
1370 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1371 sym_hashes = elf_sym_hashes (input_bfd);
1372 local_got_offsets = elf_local_got_offsets (input_bfd);
48d502e1 1373
c96a8570 1374 sgot = NULL;
48d502e1 1375
c96a8570
BS
1376 rel = relocs;
1377 relend = relocs + input_section->reloc_count;
1378 for (; rel < relend; rel++, i++)
1379 {
1380 int r_type;
1381 reloc_howto_type *howto;
1382 unsigned long r_symndx;
1383 struct elf_link_hash_entry *h;
1384 Elf_Internal_Sym *sym;
1385 asection *sec;
1386 bfd_vma relocation = 0;
1387 bfd_boolean unresolved_reloc;
1388 bfd_reloc_status_type r;
1389 bfd_vma address;
48d502e1 1390
c96a8570
BS
1391 r_type = ELF32_R_TYPE (rel->r_info);
1392 if (r_type < 0 || r_type >= 243)
1393 {
1394 bfd_set_error (bfd_error_bad_value);
1395 return FALSE;
1396 }
48d502e1 1397
c96a8570 1398 if (r_type == R_BFIN_GNU_VTENTRY
07d6d2b8 1399 || r_type == R_BFIN_GNU_VTINHERIT)
c96a8570 1400 continue;
48d502e1 1401
c96a8570
BS
1402 howto = bfin_reloc_type_lookup (input_bfd, r_type);
1403 if (howto == NULL)
1404 {
1405 bfd_set_error (bfd_error_bad_value);
1406 return FALSE;
1407 }
1408 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1 1409
c96a8570
BS
1410 h = NULL;
1411 sym = NULL;
1412 sec = NULL;
1413 unresolved_reloc = FALSE;
48d502e1 1414
c96a8570
BS
1415 if (r_symndx < symtab_hdr->sh_info)
1416 {
1417 sym = local_syms + r_symndx;
1418 sec = local_sections[r_symndx];
1419 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1420 }
1421 else
1422 {
62d887d4 1423 bfd_boolean warned, ignored;
48d502e1 1424
c96a8570
BS
1425 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1426 r_symndx, symtab_hdr, sym_hashes,
1427 h, sec, relocation,
62d887d4 1428 unresolved_reloc, warned, ignored);
c96a8570 1429 }
48d502e1 1430
dbaa2011 1431 if (sec != NULL && discarded_section (sec))
e4067dbb 1432 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 1433 rel, 1, relend, howto, 0, contents);
48d502e1 1434
0e1862bb 1435 if (bfd_link_relocatable (info))
c96a8570 1436 continue;
48d502e1 1437
c96a8570 1438 address = rel->r_offset;
48d502e1 1439
c96a8570
BS
1440 /* Then, process normally. */
1441 switch (r_type)
1442 {
1443 case R_BFIN_GNU_VTINHERIT:
1444 case R_BFIN_GNU_VTENTRY:
1445 return bfd_reloc_ok;
48d502e1 1446
cb88ce9f 1447 case R_BFIN_GOT:
c96a8570
BS
1448 /* Relocation is to the address of the entry for this symbol
1449 in the global offset table. */
1450 if (h != NULL
1451 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1452 goto do_default;
1453 /* Fall through. */
1454 /* Relocation is the offset of the entry for this symbol in
1455 the global offset table. */
48d502e1 1456
c96a8570
BS
1457 {
1458 bfd_vma off;
48d502e1 1459
ce558b89 1460 if (dynobj == NULL)
c96a8570 1461 {
ce558b89
AM
1462 /* Create the .got section. */
1463 elf_hash_table (info)->dynobj = dynobj = output_bfd;
1464 if (!_bfd_elf_create_got_section (dynobj, info))
1465 return FALSE;
c96a8570 1466 }
48d502e1 1467
ce558b89
AM
1468 sgot = elf_hash_table (info)->sgot;
1469 BFD_ASSERT (sgot != NULL);
1470
c96a8570
BS
1471 if (h != NULL)
1472 {
1473 bfd_boolean dyn;
48d502e1 1474
c96a8570
BS
1475 off = h->got.offset;
1476 BFD_ASSERT (off != (bfd_vma) - 1);
1477 dyn = elf_hash_table (info)->dynamic_sections_created;
48d502e1 1478
0e1862bb
L
1479 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
1480 bfd_link_pic (info),
1481 h)
1482 || (bfd_link_pic (info)
c96a8570
BS
1483 && (info->symbolic
1484 || h->dynindx == -1
1485 || h->forced_local)
1486 && h->def_regular))
1487 {
1488 /* This is actually a static link, or it is a
1489 -Bsymbolic link and the symbol is defined
1490 locally, or the symbol was forced to be local
1491 because of a version file.. We must initialize
1492 this entry in the global offset table. Since
1493 the offset must always be a multiple of 4, we
1494 use the least significant bit to record whether
1495 we have initialized it already.
48d502e1 1496
c96a8570
BS
1497 When doing a dynamic link, we create a .rela.got
1498 relocation entry to initialize the value. This
1499 is done in the finish_dynamic_symbol routine. */
1500 if ((off & 1) != 0)
1501 off &= ~1;
1502 else
1503 {
1504 bfd_put_32 (output_bfd, relocation,
1505 sgot->contents + off);
1506 h->got.offset |= 1;
1507 }
1508 }
1509 else
1510 unresolved_reloc = FALSE;
1511 }
1512 else
1513 {
1514 BFD_ASSERT (local_got_offsets != NULL);
1515 off = local_got_offsets[r_symndx];
1516 BFD_ASSERT (off != (bfd_vma) - 1);
48d502e1 1517
c96a8570
BS
1518 /* The offset must always be a multiple of 4. We use
1519 the least significant bit to record whether we have
1520 already generated the necessary reloc. */
1521 if ((off & 1) != 0)
1522 off &= ~1;
1523 else
1524 {
1525 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
48d502e1 1526
0e1862bb 1527 if (bfd_link_pic (info))
c96a8570
BS
1528 {
1529 asection *s;
1530 Elf_Internal_Rela outrel;
1531 bfd_byte *loc;
48d502e1 1532
ce558b89 1533 s = elf_hash_table (info)->srelgot;
c96a8570 1534 BFD_ASSERT (s != NULL);
48d502e1 1535
c96a8570
BS
1536 outrel.r_offset = (sgot->output_section->vma
1537 + sgot->output_offset + off);
1538 outrel.r_info =
cb88ce9f 1539 ELF32_R_INFO (0, R_BFIN_PCREL24);
c96a8570
BS
1540 outrel.r_addend = relocation;
1541 loc = s->contents;
1542 loc +=
1543 s->reloc_count++ * sizeof (Elf32_External_Rela);
1544 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1545 }
48d502e1 1546
c96a8570
BS
1547 local_got_offsets[r_symndx] |= 1;
1548 }
1549 }
48d502e1 1550
c96a8570
BS
1551 relocation = sgot->output_offset + off;
1552 rel->r_addend = 0;
07d6d2b8
AM
1553 /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */
1554 relocation /= 4;
c96a8570
BS
1555 }
1556 goto do_default;
1557
1558 default:
1559 do_default:
1560 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
1561 contents, address,
1562 relocation, rel->r_addend);
1563
1564 break;
48d502e1
BS
1565 }
1566
c96a8570 1567 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
07d6d2b8
AM
1568 because such sections are not SEC_ALLOC and thus ld.so will
1569 not process them. */
c96a8570 1570 if (unresolved_reloc
1d5316ab
AM
1571 && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic)
1572 && _bfd_elf_section_offset (output_bfd, info, input_section,
1573 rel->r_offset) != (bfd_vma) -1)
48d502e1 1574 {
4eca0228 1575 _bfd_error_handler
695344c0 1576 /* xgettext:c-format */
2dcf00ce
AM
1577 (_("%pB(%pA+%#" PRIx64 "): "
1578 "unresolvable relocation against symbol `%s'"),
1579 input_bfd, input_section, (uint64_t) rel->r_offset,
1580 h->root.root.string);
c96a8570 1581 return FALSE;
48d502e1 1582 }
48d502e1 1583
c96a8570 1584 if (r != bfd_reloc_ok)
48d502e1 1585 {
c96a8570
BS
1586 const char *name;
1587
1588 if (h != NULL)
1589 name = h->root.root.string;
1590 else
48d502e1 1591 {
c96a8570
BS
1592 name = bfd_elf_string_from_elf_section (input_bfd,
1593 symtab_hdr->sh_link,
1594 sym->st_name);
1595 if (name == NULL)
1596 return FALSE;
1597 if (*name == '\0')
1598 name = bfd_section_name (input_bfd, sec);
48d502e1 1599 }
c96a8570
BS
1600
1601 if (r == bfd_reloc_overflow)
1a72702b
AM
1602 (*info->callbacks->reloc_overflow)
1603 (info, (h ? &h->root : NULL), name, howto->name,
1604 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
48d502e1
BS
1605 else
1606 {
4eca0228 1607 _bfd_error_handler
695344c0 1608 /* xgettext:c-format */
2dcf00ce
AM
1609 (_("%pB(%pA+%#" PRIx64 "): reloc against `%s': error %d"),
1610 input_bfd, input_section, (uint64_t) rel->r_offset,
1611 name, (int) r);
c96a8570 1612 return FALSE;
48d502e1 1613 }
48d502e1 1614 }
48d502e1
BS
1615 }
1616
c96a8570
BS
1617 return TRUE;
1618}
48d502e1 1619
c96a8570
BS
1620static asection *
1621bfin_gc_mark_hook (asection * sec,
1622 struct bfd_link_info *info,
1623 Elf_Internal_Rela * rel,
1624 struct elf_link_hash_entry *h,
07d6d2b8 1625 Elf_Internal_Sym * sym)
c96a8570
BS
1626{
1627 if (h != NULL)
1628 switch (ELF32_R_TYPE (rel->r_info))
1629 {
1630 case R_BFIN_GNU_VTINHERIT:
1631 case R_BFIN_GNU_VTENTRY:
1632 return NULL;
1633 }
48d502e1 1634
c96a8570
BS
1635 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1636}
c96a8570 1637\f
6d00b590
AM
1638extern const bfd_target bfin_elf32_fdpic_vec;
1639#define IS_FDPIC(bfd) ((bfd)->xvec == &bfin_elf32_fdpic_vec)
0f64bb02 1640
4dfe6ac6
NC
1641/* An extension of the elf hash table data structure,
1642 containing some additional Blackfin-specific data. */
c96a8570 1643struct bfinfdpic_elf_link_hash_table
c35e54f4 1644{
c96a8570 1645 struct elf_link_hash_table elf;
c35e54f4 1646
c96a8570
BS
1647 /* A pointer to the .rofixup section. */
1648 asection *sgotfixup;
c96a8570
BS
1649 /* GOT base offset. */
1650 bfd_vma got0;
1651 /* Location of the first non-lazy PLT entry, i.e., the number of
1652 bytes taken by lazy PLT entries. */
1653 bfd_vma plt0;
1654 /* A hash table holding information about which symbols were
1655 referenced with which PIC-related relocations. */
1656 struct htab *relocs_info;
6a9adeca
BS
1657 /* Summary reloc information collected by
1658 _bfinfdpic_count_got_plt_entries. */
1659 struct _bfinfdpic_dynamic_got_info *g;
c96a8570 1660};
c35e54f4 1661
c96a8570 1662/* Get the Blackfin ELF linker hash table from a link_info structure. */
c35e54f4 1663
c96a8570 1664#define bfinfdpic_hash_table(info) \
4dfe6ac6
NC
1665 (elf_hash_table_id ((struct elf_link_hash_table *) ((info)->hash)) \
1666 == BFIN_ELF_DATA ? ((struct bfinfdpic_elf_link_hash_table *) ((info)->hash)) : NULL)
c35e54f4 1667
c96a8570 1668#define bfinfdpic_got_section(info) \
ce558b89 1669 (bfinfdpic_hash_table (info)->elf.sgot)
c96a8570 1670#define bfinfdpic_gotrel_section(info) \
ce558b89 1671 (bfinfdpic_hash_table (info)->elf.srelgot)
c96a8570
BS
1672#define bfinfdpic_gotfixup_section(info) \
1673 (bfinfdpic_hash_table (info)->sgotfixup)
1674#define bfinfdpic_plt_section(info) \
ce558b89 1675 (bfinfdpic_hash_table (info)->elf.splt)
c96a8570 1676#define bfinfdpic_pltrel_section(info) \
ce558b89 1677 (bfinfdpic_hash_table (info)->elf.srelplt)
c96a8570
BS
1678#define bfinfdpic_relocs_info(info) \
1679 (bfinfdpic_hash_table (info)->relocs_info)
1680#define bfinfdpic_got_initial_offset(info) \
1681 (bfinfdpic_hash_table (info)->got0)
1682#define bfinfdpic_plt_initial_offset(info) \
1683 (bfinfdpic_hash_table (info)->plt0)
6a9adeca
BS
1684#define bfinfdpic_dynamic_got_plt_info(info) \
1685 (bfinfdpic_hash_table (info)->g)
c35e54f4 1686
c96a8570
BS
1687/* The name of the dynamic interpreter. This is put in the .interp
1688 section. */
c35e54f4 1689
c96a8570 1690#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
c35e54f4 1691
c96a8570 1692#define DEFAULT_STACK_SIZE 0x20000
c35e54f4 1693
c96a8570
BS
1694/* This structure is used to collect the number of entries present in
1695 each addressable range of the got. */
1696struct _bfinfdpic_dynamic_got_info
1697{
1698 /* Several bits of information about the current link. */
1699 struct bfd_link_info *info;
1700 /* Total size needed for GOT entries within the 18- or 32-bit
1701 ranges. */
1702 bfd_vma got17m4, gothilo;
1703 /* Total size needed for function descriptor entries within the 18-
1704 or 32-bit ranges. */
1705 bfd_vma fd17m4, fdhilo;
1706 /* Total size needed function descriptor entries referenced in PLT
1707 entries, that would be profitable to place in offsets close to
1708 the PIC register. */
1709 bfd_vma fdplt;
1710 /* Total size needed by lazy PLT entries. */
1711 bfd_vma lzplt;
1712 /* Number of relocations carried over from input object files. */
1713 unsigned long relocs;
1714 /* Number of fixups introduced by relocations in input object files. */
1715 unsigned long fixups;
1716};
c35e54f4 1717
c96a8570 1718/* Create a Blackfin ELF linker hash table. */
c35e54f4 1719
c96a8570
BS
1720static struct bfd_link_hash_table *
1721bfinfdpic_elf_link_hash_table_create (bfd *abfd)
1722{
1723 struct bfinfdpic_elf_link_hash_table *ret;
1724 bfd_size_type amt = sizeof (struct bfinfdpic_elf_link_hash_table);
c35e54f4 1725
22cdc249 1726 ret = bfd_zmalloc (amt);
c96a8570
BS
1727 if (ret == NULL)
1728 return NULL;
c35e54f4 1729
c96a8570
BS
1730 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1731 _bfd_elf_link_hash_newfunc,
4dfe6ac6
NC
1732 sizeof (struct elf_link_hash_entry),
1733 BFIN_ELF_DATA))
c96a8570
BS
1734 {
1735 free (ret);
1736 return NULL;
1737 }
c35e54f4 1738
c96a8570
BS
1739 return &ret->elf.root;
1740}
48d502e1 1741
c96a8570
BS
1742/* Decide whether a reference to a symbol can be resolved locally or
1743 not. If the symbol is protected, we want the local address, but
1744 its function descriptor must be assigned by the dynamic linker. */
1745#define BFINFDPIC_SYM_LOCAL(INFO, H) \
1746 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1747 || ! elf_hash_table (INFO)->dynamic_sections_created)
1748#define BFINFDPIC_FUNCDESC_LOCAL(INFO, H) \
1749 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
48d502e1 1750
c96a8570
BS
1751/* This structure collects information on what kind of GOT, PLT or
1752 function descriptors are required by relocations that reference a
1753 certain symbol. */
1754struct bfinfdpic_relocs_info
1755{
1756 /* The index of the symbol, as stored in the relocation r_info, if
1757 we have a local symbol; -1 otherwise. */
1758 long symndx;
1759 union
1760 {
1761 /* The input bfd in which the symbol is defined, if it's a local
1762 symbol. */
1763 bfd *abfd;
1764 /* If symndx == -1, the hash table entry corresponding to a global
1765 symbol (even if it turns out to bind locally, in which case it
1766 should ideally be replaced with section's symndx + addend). */
1767 struct elf_link_hash_entry *h;
1768 } d;
1769 /* The addend of the relocation that references the symbol. */
1770 bfd_vma addend;
48d502e1 1771
c96a8570
BS
1772 /* The fields above are used to identify an entry. The fields below
1773 contain information on how an entry is used and, later on, which
1774 locations it was assigned. */
1775 /* The following 2 fields record whether the symbol+addend above was
1776 ever referenced with a GOT relocation. The 17M4 suffix indicates a
1777 GOT17M4 relocation; hilo is used for GOTLO/GOTHI pairs. */
1778 unsigned got17m4;
1779 unsigned gothilo;
1780 /* Whether a FUNCDESC relocation references symbol+addend. */
1781 unsigned fd;
1782 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1783 unsigned fdgot17m4;
1784 unsigned fdgothilo;
1785 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1786 unsigned fdgoff17m4;
1787 unsigned fdgoffhilo;
1788 /* Whether symbol+addend is referenced with GOTOFF17M4, GOTOFFLO or
1789 GOTOFFHI relocations. The addend doesn't really matter, since we
1790 envision that this will only be used to check whether the symbol
1791 is mapped to the same segment as the got. */
1792 unsigned gotoff;
1793 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1794 unsigned call;
1795 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1796 relocation. */
1797 unsigned sym;
1798 /* Whether we need a PLT entry for a symbol. Should be implied by
1799 something like:
1800 (call && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)) */
1801 unsigned plt:1;
1802 /* Whether a function descriptor should be created in this link unit
1803 for symbol+addend. Should be implied by something like:
1804 (plt || fdgotoff17m4 || fdgotofflohi
1805 || ((fd || fdgot17m4 || fdgothilo)
07d6d2b8 1806 && (symndx != -1 || BFINFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
c96a8570
BS
1807 unsigned privfd:1;
1808 /* Whether a lazy PLT entry is needed for this symbol+addend.
1809 Should be implied by something like:
1810 (privfd && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)
1811 && ! (info->flags & DF_BIND_NOW)) */
1812 unsigned lazyplt:1;
1813 /* Whether we've already emitted GOT relocations and PLT entries as
1814 needed for this symbol. */
1815 unsigned done:1;
48d502e1 1816
cb88ce9f 1817 /* The number of R_BFIN_BYTE4_DATA, R_BFIN_FUNCDESC and R_BFIN_FUNCDESC_VALUE
c96a8570
BS
1818 relocations referencing the symbol. */
1819 unsigned relocs32, relocsfd, relocsfdv;
48d502e1 1820
c96a8570
BS
1821 /* The number of .rofixups entries and dynamic relocations allocated
1822 for this symbol, minus any that might have already been used. */
1823 unsigned fixups, dynrelocs;
48d502e1 1824
c96a8570
BS
1825 /* The offsets of the GOT entries assigned to symbol+addend, to the
1826 function descriptor's address, and to a function descriptor,
1827 respectively. Should be zero if unassigned. The offsets are
1828 counted from the value that will be assigned to the PIC register,
1829 not from the beginning of the .got section. */
1830 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1831 /* The offsets of the PLT entries assigned to symbol+addend,
1832 non-lazy and lazy, respectively. If unassigned, should be
1833 (bfd_vma)-1. */
1834 bfd_vma plt_entry, lzplt_entry;
1835};
48d502e1 1836
c96a8570
BS
1837/* Compute a hash with the key fields of an bfinfdpic_relocs_info entry. */
1838static hashval_t
1839bfinfdpic_relocs_info_hash (const void *entry_)
1840{
1841 const struct bfinfdpic_relocs_info *entry = entry_;
48d502e1 1842
c96a8570
BS
1843 return (entry->symndx == -1
1844 ? (long) entry->d.h->root.root.hash
1845 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1846}
f4707595 1847
c96a8570
BS
1848/* Test whether the key fields of two bfinfdpic_relocs_info entries are
1849 identical. */
1850static int
1851bfinfdpic_relocs_info_eq (const void *entry1, const void *entry2)
0f64bb02 1852{
c96a8570
BS
1853 const struct bfinfdpic_relocs_info *e1 = entry1;
1854 const struct bfinfdpic_relocs_info *e2 = entry2;
0f64bb02 1855
c96a8570
BS
1856 return e1->symndx == e2->symndx && e1->addend == e2->addend
1857 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1858}
48d502e1 1859
c96a8570
BS
1860/* Find or create an entry in a hash table HT that matches the key
1861 fields of the given ENTRY. If it's not found, memory for a new
1862 entry is allocated in ABFD's obstack. */
1863static struct bfinfdpic_relocs_info *
1864bfinfdpic_relocs_info_find (struct htab *ht,
1865 bfd *abfd,
1866 const struct bfinfdpic_relocs_info *entry,
1867 enum insert_option insert)
1868{
83fd9437
JZ
1869 struct bfinfdpic_relocs_info **loc;
1870
1871 if (!ht)
1872 return NULL;
1873
1874 loc = (struct bfinfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
0f64bb02 1875
c96a8570
BS
1876 if (! loc)
1877 return NULL;
0f64bb02 1878
c96a8570
BS
1879 if (*loc)
1880 return *loc;
0f64bb02 1881
c96a8570 1882 *loc = bfd_zalloc (abfd, sizeof (**loc));
0f64bb02 1883
c96a8570
BS
1884 if (! *loc)
1885 return *loc;
0f64bb02 1886
c96a8570
BS
1887 (*loc)->symndx = entry->symndx;
1888 (*loc)->d = entry->d;
1889 (*loc)->addend = entry->addend;
1890 (*loc)->plt_entry = (bfd_vma)-1;
1891 (*loc)->lzplt_entry = (bfd_vma)-1;
0f64bb02 1892
c96a8570
BS
1893 return *loc;
1894}
48d502e1 1895
c96a8570
BS
1896/* Obtain the address of the entry in HT associated with H's symbol +
1897 addend, creating a new entry if none existed. ABFD is only used
1898 for memory allocation purposes. */
1899inline static struct bfinfdpic_relocs_info *
1900bfinfdpic_relocs_info_for_global (struct htab *ht,
2c3fc389
NC
1901 bfd *abfd,
1902 struct elf_link_hash_entry *h,
1903 bfd_vma addend,
1904 enum insert_option insert)
c96a8570
BS
1905{
1906 struct bfinfdpic_relocs_info entry;
0f64bb02 1907
c96a8570
BS
1908 entry.symndx = -1;
1909 entry.d.h = h;
1910 entry.addend = addend;
f4707595 1911
c96a8570
BS
1912 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
1913}
48d502e1 1914
c96a8570
BS
1915/* Obtain the address of the entry in HT associated with the SYMNDXth
1916 local symbol of the input bfd ABFD, plus the addend, creating a new
1917 entry if none existed. */
1918inline static struct bfinfdpic_relocs_info *
1919bfinfdpic_relocs_info_for_local (struct htab *ht,
1920 bfd *abfd,
1921 long symndx,
1922 bfd_vma addend,
1923 enum insert_option insert)
1924{
1925 struct bfinfdpic_relocs_info entry;
ab96bf03 1926
c96a8570
BS
1927 entry.symndx = symndx;
1928 entry.d.abfd = abfd;
1929 entry.addend = addend;
48d502e1 1930
c96a8570
BS
1931 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
1932}
48d502e1 1933
c96a8570
BS
1934/* Merge fields set by check_relocs() of two entries that end up being
1935 mapped to the same (presumably global) symbol. */
0f64bb02 1936
c96a8570
BS
1937inline static void
1938bfinfdpic_pic_merge_early_relocs_info (struct bfinfdpic_relocs_info *e2,
2c3fc389 1939 struct bfinfdpic_relocs_info const *e1)
c96a8570
BS
1940{
1941 e2->got17m4 |= e1->got17m4;
1942 e2->gothilo |= e1->gothilo;
1943 e2->fd |= e1->fd;
1944 e2->fdgot17m4 |= e1->fdgot17m4;
1945 e2->fdgothilo |= e1->fdgothilo;
1946 e2->fdgoff17m4 |= e1->fdgoff17m4;
1947 e2->fdgoffhilo |= e1->fdgoffhilo;
1948 e2->gotoff |= e1->gotoff;
1949 e2->call |= e1->call;
1950 e2->sym |= e1->sym;
1951}
48d502e1 1952
c96a8570
BS
1953/* Every block of 65535 lazy PLT entries shares a single call to the
1954 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1955 32767, counting from 0). All other lazy PLT entries branch to it
1956 in a single instruction. */
48d502e1 1957
c96a8570
BS
1958#define LZPLT_RESOLVER_EXTRA 10
1959#define LZPLT_NORMAL_SIZE 6
1960#define LZPLT_ENTRIES 1362
48d502e1 1961
c96a8570
BS
1962#define BFINFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) LZPLT_NORMAL_SIZE * LZPLT_ENTRIES + LZPLT_RESOLVER_EXTRA)
1963#define BFINFDPIC_LZPLT_RESOLV_LOC (LZPLT_NORMAL_SIZE * LZPLT_ENTRIES / 2)
48d502e1 1964
c96a8570 1965/* Add a dynamic relocation to the SRELOC section. */
48d502e1 1966
c96a8570
BS
1967inline static bfd_vma
1968_bfinfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1969 int reloc_type, long dynindx, bfd_vma addend,
1970 struct bfinfdpic_relocs_info *entry)
1971{
1972 Elf_Internal_Rela outrel;
1973 bfd_vma reloc_offset;
0f64bb02 1974
c96a8570
BS
1975 outrel.r_offset = offset;
1976 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1977 outrel.r_addend = addend;
48d502e1 1978
c96a8570
BS
1979 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1980 BFD_ASSERT (reloc_offset < sreloc->size);
1981 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1982 sreloc->contents + reloc_offset);
1983 sreloc->reloc_count++;
48d502e1 1984
c96a8570
BS
1985 /* If the entry's index is zero, this relocation was probably to a
1986 linkonce section that got discarded. We reserved a dynamic
1987 relocation, but it was for another entry than the one we got at
1988 the time of emitting the relocation. Unfortunately there's no
1989 simple way for us to catch this situation, since the relocation
1990 is cleared right before calling relocate_section, at which point
1991 we no longer know what the relocation used to point to. */
1992 if (entry->symndx)
1993 {
1994 BFD_ASSERT (entry->dynrelocs > 0);
1995 entry->dynrelocs--;
1996 }
48d502e1 1997
c96a8570
BS
1998 return reloc_offset;
1999}
0f64bb02 2000
c96a8570 2001/* Add a fixup to the ROFIXUP section. */
48d502e1 2002
c96a8570
BS
2003static bfd_vma
2004_bfinfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
2c3fc389 2005 struct bfinfdpic_relocs_info *entry)
c96a8570
BS
2006{
2007 bfd_vma fixup_offset;
8aafe8b4 2008
c96a8570
BS
2009 if (rofixup->flags & SEC_EXCLUDE)
2010 return -1;
0f64bb02 2011
c96a8570
BS
2012 fixup_offset = rofixup->reloc_count * 4;
2013 if (rofixup->contents)
2014 {
2015 BFD_ASSERT (fixup_offset < rofixup->size);
2016 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
2017 }
2018 rofixup->reloc_count++;
0f64bb02 2019
c96a8570
BS
2020 if (entry && entry->symndx)
2021 {
2022 /* See discussion about symndx == 0 in _bfinfdpic_add_dyn_reloc
2023 above. */
2024 BFD_ASSERT (entry->fixups > 0);
2025 entry->fixups--;
2026 }
f4707595 2027
c96a8570
BS
2028 return fixup_offset;
2029}
0f64bb02 2030
c96a8570
BS
2031/* Find the segment number in which OSEC, and output section, is
2032 located. */
ca889129 2033
c96a8570
BS
2034static unsigned
2035_bfinfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
2036{
2037 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
0f64bb02 2038
c96a8570
BS
2039 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
2040}
2041
2042inline static bfd_boolean
2043_bfinfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
2044{
2045 unsigned seg = _bfinfdpic_osec_to_segment (output_bfd, osec);
2046
2047 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
2048}
2049
2050/* Generate relocations for GOT entries, function descriptors, and
2051 code for PLT and lazy PLT entries. */
2052
2053inline static bfd_boolean
2054_bfinfdpic_emit_got_relocs_plt_entries (struct bfinfdpic_relocs_info *entry,
2055 bfd *output_bfd,
2056 struct bfd_link_info *info,
2057 asection *sec,
2058 Elf_Internal_Sym *sym,
2059 bfd_vma addend)
c96a8570 2060{
2c3fc389 2061 bfd_vma fd_lazy_rel_offset = (bfd_vma) -1;
c96a8570
BS
2062 int dynindx = -1;
2063
2064 if (entry->done)
2065 return TRUE;
2066 entry->done = 1;
2067
2068 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry)
2069 {
2070 /* If the symbol is dynamic, consider it for dynamic
2071 relocations, otherwise decay to section + offset. */
2072 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
2073 dynindx = entry->d.h->dynindx;
2074 else
2075 {
6a9adeca
BS
2076 if (sec
2077 && sec->output_section
c96a8570
BS
2078 && ! bfd_is_abs_section (sec->output_section)
2079 && ! bfd_is_und_section (sec->output_section))
2080 dynindx = elf_section_data (sec->output_section)->dynindx;
2081 else
2082 dynindx = 0;
2083 }
2084 }
2085
2086 /* Generate relocation for GOT entry pointing to the symbol. */
2087 if (entry->got_entry)
2088 {
2089 int idx = dynindx;
2090 bfd_vma ad = addend;
2091
2092 /* If the symbol is dynamic but binds locally, use
2093 section+offset. */
2094 if (sec && (entry->symndx != -1
2095 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2096 {
2097 if (entry->symndx == -1)
2098 ad += entry->d.h->root.u.def.value;
2099 else
2100 ad += sym->st_value;
2101 ad += sec->output_offset;
2102 if (sec->output_section && elf_section_data (sec->output_section))
2103 idx = elf_section_data (sec->output_section)->dynindx;
2104 else
2105 idx = 0;
2106 }
2107
2108 /* If we're linking an executable at a fixed address, we can
2109 omit the dynamic relocation as long as the symbol is local to
2110 this module. */
3cbc1e5e 2111 if (bfd_link_pde (info)
c96a8570
BS
2112 && (entry->symndx != -1
2113 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2114 {
2115 if (sec)
2116 ad += sec->output_section->vma;
2117 if (entry->symndx != -1
2118 || entry->d.h->root.type != bfd_link_hash_undefweak)
2119 _bfinfdpic_add_rofixup (output_bfd,
2120 bfinfdpic_gotfixup_section (info),
2121 bfinfdpic_got_section (info)->output_section
2122 ->vma
2123 + bfinfdpic_got_section (info)->output_offset
2124 + bfinfdpic_got_initial_offset (info)
2125 + entry->got_entry, entry);
2126 }
2127 else
2128 _bfinfdpic_add_dyn_reloc (output_bfd, bfinfdpic_gotrel_section (info),
2129 _bfd_elf_section_offset
2130 (output_bfd, info,
2131 bfinfdpic_got_section (info),
2132 bfinfdpic_got_initial_offset (info)
2133 + entry->got_entry)
2134 + bfinfdpic_got_section (info)
2135 ->output_section->vma
2136 + bfinfdpic_got_section (info)->output_offset,
cb88ce9f 2137 R_BFIN_BYTE4_DATA, idx, ad, entry);
c96a8570
BS
2138
2139 bfd_put_32 (output_bfd, ad,
2140 bfinfdpic_got_section (info)->contents
2141 + bfinfdpic_got_initial_offset (info)
2142 + entry->got_entry);
2143 }
2144
2145 /* Generate relocation for GOT entry pointing to a canonical
2146 function descriptor. */
2147 if (entry->fdgot_entry)
2148 {
2149 int reloc, idx;
2150 bfd_vma ad = 0;
2151
2152 if (! (entry->symndx == -1
2153 && entry->d.h->root.type == bfd_link_hash_undefweak
2154 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2155 {
2156 /* If the symbol is dynamic and there may be dynamic symbol
2157 resolution because we are, or are linked with, a shared
2158 library, emit a FUNCDESC relocation such that the dynamic
2159 linker will allocate the function descriptor. If the
2160 symbol needs a non-local function descriptor but binds
2161 locally (e.g., its visibility is protected, emit a
2162 dynamic relocation decayed to section+offset. */
2163 if (entry->symndx == -1
2164 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
2165 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)
3cbc1e5e 2166 && !bfd_link_pde (info))
c96a8570
BS
2167 {
2168 reloc = R_BFIN_FUNCDESC;
2169 idx = elf_section_data (entry->d.h->root.u.def.section
2170 ->output_section)->dynindx;
2171 ad = entry->d.h->root.u.def.section->output_offset
2172 + entry->d.h->root.u.def.value;
2173 }
2174 else if (entry->symndx == -1
2175 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
2176 {
2177 reloc = R_BFIN_FUNCDESC;
2178 idx = dynindx;
2179 ad = addend;
2180 if (ad)
2181 return FALSE;
2182 }
2183 else
2184 {
2185 /* Otherwise, we know we have a private function descriptor,
2186 so reference it directly. */
2187 if (elf_hash_table (info)->dynamic_sections_created)
2188 BFD_ASSERT (entry->privfd);
cb88ce9f 2189 reloc = R_BFIN_BYTE4_DATA;
c96a8570
BS
2190 idx = elf_section_data (bfinfdpic_got_section (info)
2191 ->output_section)->dynindx;
2192 ad = bfinfdpic_got_section (info)->output_offset
2193 + bfinfdpic_got_initial_offset (info) + entry->fd_entry;
2194 }
2195
2196 /* If there is room for dynamic symbol resolution, emit the
2197 dynamic relocation. However, if we're linking an
2198 executable at a fixed location, we won't have emitted a
2199 dynamic symbol entry for the got section, so idx will be
2200 zero, which means we can and should compute the address
2201 of the private descriptor ourselves. */
3cbc1e5e 2202 if (bfd_link_pde (info)
c96a8570
BS
2203 && (entry->symndx != -1
2204 || BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
2205 {
2206 ad += bfinfdpic_got_section (info)->output_section->vma;
2207 _bfinfdpic_add_rofixup (output_bfd,
2208 bfinfdpic_gotfixup_section (info),
2209 bfinfdpic_got_section (info)
2210 ->output_section->vma
2211 + bfinfdpic_got_section (info)
2212 ->output_offset
2213 + bfinfdpic_got_initial_offset (info)
2214 + entry->fdgot_entry, entry);
2215 }
2216 else
2217 _bfinfdpic_add_dyn_reloc (output_bfd,
2218 bfinfdpic_gotrel_section (info),
2219 _bfd_elf_section_offset
2220 (output_bfd, info,
2221 bfinfdpic_got_section (info),
2222 bfinfdpic_got_initial_offset (info)
2223 + entry->fdgot_entry)
2224 + bfinfdpic_got_section (info)
2225 ->output_section->vma
2226 + bfinfdpic_got_section (info)
2227 ->output_offset,
2228 reloc, idx, ad, entry);
2229 }
f4707595 2230
c96a8570
BS
2231 bfd_put_32 (output_bfd, ad,
2232 bfinfdpic_got_section (info)->contents
2233 + bfinfdpic_got_initial_offset (info)
2234 + entry->fdgot_entry);
2235 }
2236
2237 /* Generate relocation to fill in a private function descriptor in
2238 the GOT. */
2239 if (entry->fd_entry)
2240 {
2241 int idx = dynindx;
2242 bfd_vma ad = addend;
2243 bfd_vma ofst;
2244 long lowword, highword;
2245
2246 /* If the symbol is dynamic but binds locally, use
2247 section+offset. */
2248 if (sec && (entry->symndx != -1
2249 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2250 {
2251 if (entry->symndx == -1)
2252 ad += entry->d.h->root.u.def.value;
2253 else
2254 ad += sym->st_value;
2255 ad += sec->output_offset;
2256 if (sec->output_section && elf_section_data (sec->output_section))
2257 idx = elf_section_data (sec->output_section)->dynindx;
2258 else
2259 idx = 0;
48d502e1 2260 }
f4707595 2261
c96a8570
BS
2262 /* If we're linking an executable at a fixed address, we can
2263 omit the dynamic relocation as long as the symbol is local to
2264 this module. */
3cbc1e5e 2265 if (bfd_link_pde (info)
c96a8570 2266 && (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
48d502e1 2267 {
c96a8570
BS
2268 if (sec)
2269 ad += sec->output_section->vma;
2270 ofst = 0;
2271 if (entry->symndx != -1
2272 || entry->d.h->root.type != bfd_link_hash_undefweak)
2273 {
2274 _bfinfdpic_add_rofixup (output_bfd,
2275 bfinfdpic_gotfixup_section (info),
2276 bfinfdpic_got_section (info)
2277 ->output_section->vma
2278 + bfinfdpic_got_section (info)
2279 ->output_offset
2280 + bfinfdpic_got_initial_offset (info)
2281 + entry->fd_entry, entry);
2282 _bfinfdpic_add_rofixup (output_bfd,
2283 bfinfdpic_gotfixup_section (info),
2284 bfinfdpic_got_section (info)
2285 ->output_section->vma
2286 + bfinfdpic_got_section (info)
2287 ->output_offset
2288 + bfinfdpic_got_initial_offset (info)
2289 + entry->fd_entry + 4, entry);
2290 }
2291 }
2292 else
2293 {
2294 ofst
2295 = _bfinfdpic_add_dyn_reloc (output_bfd,
2296 entry->lazyplt
2297 ? bfinfdpic_pltrel_section (info)
2298 : bfinfdpic_gotrel_section (info),
2299 _bfd_elf_section_offset
2300 (output_bfd, info,
2301 bfinfdpic_got_section (info),
2302 bfinfdpic_got_initial_offset (info)
2303 + entry->fd_entry)
2304 + bfinfdpic_got_section (info)
2305 ->output_section->vma
2306 + bfinfdpic_got_section (info)
2307 ->output_offset,
2308 R_BFIN_FUNCDESC_VALUE, idx, ad, entry);
48d502e1 2309 }
f4707595 2310
c96a8570
BS
2311 /* If we've omitted the dynamic relocation, just emit the fixed
2312 addresses of the symbol and of the local GOT base offset. */
3cbc1e5e 2313 if (bfd_link_pde (info)
0e1862bb
L
2314 && sec
2315 && sec->output_section)
48d502e1 2316 {
c96a8570
BS
2317 lowword = ad;
2318 highword = bfinfdpic_got_section (info)->output_section->vma
2319 + bfinfdpic_got_section (info)->output_offset
2320 + bfinfdpic_got_initial_offset (info);
2321 }
2322 else if (entry->lazyplt)
2323 {
2324 if (ad)
2325 return FALSE;
f4707595 2326
c96a8570 2327 fd_lazy_rel_offset = ofst;
f4707595 2328
c96a8570
BS
2329 /* A function descriptor used for lazy or local resolving is
2330 initialized such that its high word contains the output
2331 section index in which the PLT entries are located, and
2332 the low word contains the address of the lazy PLT entry
2333 entry point, that must be within the memory region
2334 assigned to that section. */
2335 lowword = entry->lzplt_entry + 4
2336 + bfinfdpic_plt_section (info)->output_offset
2337 + bfinfdpic_plt_section (info)->output_section->vma;
2338 highword = _bfinfdpic_osec_to_segment
2339 (output_bfd, bfinfdpic_plt_section (info)->output_section);
2340 }
2341 else
2342 {
2343 /* A function descriptor for a local function gets the index
2344 of the section. For a non-local function, it's
2345 disregarded. */
2346 lowword = ad;
6a9adeca
BS
2347 if (sec == NULL
2348 || (entry->symndx == -1 && entry->d.h->dynindx != -1
2349 && entry->d.h->dynindx == idx))
c96a8570
BS
2350 highword = 0;
2351 else
2352 highword = _bfinfdpic_osec_to_segment
2353 (output_bfd, sec->output_section);
48d502e1 2354 }
f4707595 2355
c96a8570
BS
2356 bfd_put_32 (output_bfd, lowword,
2357 bfinfdpic_got_section (info)->contents
2358 + bfinfdpic_got_initial_offset (info)
2359 + entry->fd_entry);
2360 bfd_put_32 (output_bfd, highword,
2361 bfinfdpic_got_section (info)->contents
2362 + bfinfdpic_got_initial_offset (info)
2363 + entry->fd_entry + 4);
2364 }
2365
2366 /* Generate code for the PLT entry. */
2367 if (entry->plt_entry != (bfd_vma) -1)
2368 {
2369 bfd_byte *plt_code = bfinfdpic_plt_section (info)->contents
2370 + entry->plt_entry;
2371
2372 BFD_ASSERT (entry->fd_entry);
2373
2374 /* Figure out what kind of PLT entry we need, depending on the
2375 location of the function descriptor within the GOT. */
2376 if (entry->fd_entry >= -(1 << (18 - 1))
2377 && entry->fd_entry + 4 < (1 << (18 - 1)))
48d502e1 2378 {
c96a8570
BS
2379 /* P1 = [P3 + fd_entry]; P3 = [P3 + fd_entry + 4] */
2380 bfd_put_32 (output_bfd,
2381 0xe519 | ((entry->fd_entry << 14) & 0xFFFF0000),
2382 plt_code);
2383 bfd_put_32 (output_bfd,
2384 0xe51b | (((entry->fd_entry + 4) << 14) & 0xFFFF0000),
2385 plt_code + 4);
2386 plt_code += 8;
2387 }
2388 else
2389 {
2390 /* P1.L = fd_entry; P1.H = fd_entry;
2391 P3 = P3 + P1;
2392 P1 = [P3];
2393 P3 = [P3 + 4]; */
2394 bfd_put_32 (output_bfd,
2395 0xe109 | (entry->fd_entry << 16),
2396 plt_code);
2397 bfd_put_32 (output_bfd,
2398 0xe149 | (entry->fd_entry & 0xFFFF0000),
2399 plt_code + 4);
2400 bfd_put_16 (output_bfd, 0x5ad9, plt_code + 8);
2401 bfd_put_16 (output_bfd, 0x9159, plt_code + 10);
2402 bfd_put_16 (output_bfd, 0xac5b, plt_code + 12);
2403 plt_code += 14;
2404 }
2405 /* JUMP (P1) */
2406 bfd_put_16 (output_bfd, 0x0051, plt_code);
2407 }
f4707595 2408
c96a8570
BS
2409 /* Generate code for the lazy PLT entry. */
2410 if (entry->lzplt_entry != (bfd_vma) -1)
2411 {
2412 bfd_byte *lzplt_code = bfinfdpic_plt_section (info)->contents
2413 + entry->lzplt_entry;
2414 bfd_vma resolverStub_addr;
0f64bb02 2415
c96a8570
BS
2416 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
2417 lzplt_code += 4;
0f64bb02 2418
c96a8570
BS
2419 resolverStub_addr = entry->lzplt_entry / BFINFDPIC_LZPLT_BLOCK_SIZE
2420 * BFINFDPIC_LZPLT_BLOCK_SIZE + BFINFDPIC_LZPLT_RESOLV_LOC;
2421 if (resolverStub_addr >= bfinfdpic_plt_initial_offset (info))
2422 resolverStub_addr = bfinfdpic_plt_initial_offset (info) - LZPLT_NORMAL_SIZE - LZPLT_RESOLVER_EXTRA;
0f64bb02 2423
c96a8570 2424 if (entry->lzplt_entry == resolverStub_addr)
0f64bb02 2425 {
c96a8570
BS
2426 /* This is a lazy PLT entry that includes a resolver call.
2427 P2 = [P3];
2428 R3 = [P3 + 4];
2429 JUMP (P2); */
2430 bfd_put_32 (output_bfd,
2431 0xa05b915a,
2432 lzplt_code);
2433 bfd_put_16 (output_bfd, 0x0052, lzplt_code + 4);
2434 }
2435 else
2436 {
2437 /* JUMP.S resolverStub */
2438 bfd_put_16 (output_bfd,
2439 0x2000
2440 | (((resolverStub_addr - entry->lzplt_entry)
2441 / 2) & (((bfd_vma)1 << 12) - 1)),
2442 lzplt_code);
2443 }
2444 }
0f64bb02 2445
c96a8570
BS
2446 return TRUE;
2447}
2448\f
2449/* Relocate an Blackfin ELF section.
48d502e1 2450
c96a8570
BS
2451 The RELOCATE_SECTION function is called by the new ELF backend linker
2452 to handle the relocations for a section.
48d502e1 2453
c96a8570
BS
2454 The relocs are always passed as Rela structures; if the section
2455 actually uses Rel structures, the r_addend field will always be
2456 zero.
48d502e1 2457
c96a8570
BS
2458 This function is responsible for adjusting the section contents as
2459 necessary, and (if using Rela relocs and generating a relocatable
2460 output file) adjusting the reloc addend as necessary.
48d502e1 2461
c96a8570
BS
2462 This function does not have to worry about setting the reloc
2463 address or the reloc symbol index.
48d502e1 2464
c96a8570 2465 LOCAL_SYMS is a pointer to the swapped in local symbols.
48d502e1 2466
c96a8570
BS
2467 LOCAL_SECTIONS is an array giving the section in the input file
2468 corresponding to the st_shndx field of each local symbol.
48d502e1 2469
c96a8570
BS
2470 The global hash table entry for the global symbols can be found
2471 via elf_sym_hashes (input_bfd).
48d502e1 2472
c96a8570
BS
2473 When generating relocatable output, this function must handle
2474 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2475 going to be the section symbol corresponding to the output
2476 section, which means that the addend must be adjusted
2477 accordingly. */
48d502e1
BS
2478
2479static bfd_boolean
c96a8570
BS
2480bfinfdpic_relocate_section (bfd * output_bfd,
2481 struct bfd_link_info *info,
2482 bfd * input_bfd,
2483 asection * input_section,
2484 bfd_byte * contents,
2485 Elf_Internal_Rela * relocs,
2486 Elf_Internal_Sym * local_syms,
2487 asection ** local_sections)
48d502e1 2488{
48d502e1
BS
2489 Elf_Internal_Shdr *symtab_hdr;
2490 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS
2491 Elf_Internal_Rela *rel;
2492 Elf_Internal_Rela *relend;
c96a8570
BS
2493 unsigned isec_segment, got_segment, plt_segment,
2494 check_segment[2];
0e1862bb 2495 int silence_segment_error = !bfd_link_pic (info);
48d502e1 2496
c96a8570 2497 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
48d502e1 2498 sym_hashes = elf_sym_hashes (input_bfd);
c96a8570 2499 relend = relocs + input_section->reloc_count;
48d502e1 2500
c96a8570
BS
2501 isec_segment = _bfinfdpic_osec_to_segment (output_bfd,
2502 input_section->output_section);
2503 if (IS_FDPIC (output_bfd) && bfinfdpic_got_section (info))
2504 got_segment = _bfinfdpic_osec_to_segment (output_bfd,
2505 bfinfdpic_got_section (info)
2506 ->output_section);
2507 else
2508 got_segment = -1;
2509 if (IS_FDPIC (output_bfd) && elf_hash_table (info)->dynamic_sections_created)
2510 plt_segment = _bfinfdpic_osec_to_segment (output_bfd,
2511 bfinfdpic_plt_section (info)
2512 ->output_section);
2513 else
2514 plt_segment = -1;
48d502e1 2515
c96a8570 2516 for (rel = relocs; rel < relend; rel ++)
48d502e1 2517 {
48d502e1
BS
2518 reloc_howto_type *howto;
2519 unsigned long r_symndx;
48d502e1
BS
2520 Elf_Internal_Sym *sym;
2521 asection *sec;
c96a8570
BS
2522 struct elf_link_hash_entry *h;
2523 bfd_vma relocation;
48d502e1 2524 bfd_reloc_status_type r;
c96a8570
BS
2525 const char * name = NULL;
2526 int r_type;
2527 asection *osec;
2528 struct bfinfdpic_relocs_info *picrel;
2529 bfd_vma orig_addend = rel->r_addend;
48d502e1
BS
2530
2531 r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 2532
c96a8570
BS
2533 if (r_type == R_BFIN_GNU_VTINHERIT
2534 || r_type == R_BFIN_GNU_VTENTRY)
48d502e1
BS
2535 continue;
2536
c96a8570 2537 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1
BS
2538 howto = bfin_reloc_type_lookup (input_bfd, r_type);
2539 if (howto == NULL)
2540 {
2541 bfd_set_error (bfd_error_bad_value);
2542 return FALSE;
2543 }
48d502e1 2544
c96a8570
BS
2545 h = NULL;
2546 sym = NULL;
2547 sec = NULL;
2548
2549 if (r_symndx < symtab_hdr->sh_info)
2550 {
2551 sym = local_syms + r_symndx;
2552 osec = sec = local_sections [r_symndx];
2553 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2554
2555 name = bfd_elf_string_from_elf_section
2556 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2557 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
2558 }
2559 else
2560 {
62d887d4 2561 bfd_boolean warned, ignored;
c96a8570
BS
2562 bfd_boolean unresolved_reloc;
2563
2564 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2565 r_symndx, symtab_hdr, sym_hashes,
2566 h, sec, relocation,
62d887d4 2567 unresolved_reloc, warned, ignored);
c96a8570
BS
2568 osec = sec;
2569 }
2570
dbaa2011 2571 if (sec != NULL && discarded_section (sec))
e4067dbb 2572 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2573 rel, 1, relend, howto, 0, contents);
c96a8570 2574
0e1862bb 2575 if (bfd_link_relocatable (info))
c96a8570
BS
2576 continue;
2577
2578 if (h != NULL
2579 && (h->root.type == bfd_link_hash_defined
2580 || h->root.type == bfd_link_hash_defweak)
2581 && !BFINFDPIC_SYM_LOCAL (info, h))
2582 {
2583 osec = sec = NULL;
2584 relocation = 0;
2585 }
2586
2587 switch (r_type)
2588 {
cb88ce9f
BS
2589 case R_BFIN_PCREL24:
2590 case R_BFIN_PCREL24_JUMP_L:
2591 case R_BFIN_BYTE4_DATA:
c96a8570
BS
2592 if (! IS_FDPIC (output_bfd))
2593 goto non_fdpic;
1a0670f3 2594 /* Fall through. */
c96a8570
BS
2595
2596 case R_BFIN_GOT17M4:
2597 case R_BFIN_GOTHI:
2598 case R_BFIN_GOTLO:
2599 case R_BFIN_FUNCDESC_GOT17M4:
2600 case R_BFIN_FUNCDESC_GOTHI:
2601 case R_BFIN_FUNCDESC_GOTLO:
2602 case R_BFIN_GOTOFF17M4:
2603 case R_BFIN_GOTOFFHI:
2604 case R_BFIN_GOTOFFLO:
2605 case R_BFIN_FUNCDESC_GOTOFF17M4:
2606 case R_BFIN_FUNCDESC_GOTOFFHI:
2607 case R_BFIN_FUNCDESC_GOTOFFLO:
2608 case R_BFIN_FUNCDESC:
2609 case R_BFIN_FUNCDESC_VALUE:
2610 if (h != NULL)
2611 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info
2612 (info), input_bfd, h,
2613 orig_addend, INSERT);
2614 else
2615 /* In order to find the entry we created before, we must
2616 use the original addend, not the one that may have been
2617 modified by _bfd_elf_rela_local_sym(). */
2618 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
2619 (info), input_bfd, r_symndx,
2620 orig_addend, INSERT);
2621 if (! picrel)
2622 return FALSE;
2623
2624 if (!_bfinfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2625 osec, sym,
2626 rel->r_addend))
2627 {
4eca0228 2628 _bfd_error_handler
695344c0 2629 /* xgettext:c-format */
2dcf00ce
AM
2630 (_("%pB: relocation at `%pA+%#" PRIx64 "' "
2631 "references symbol `%s' with nonzero addend"),
2632 input_bfd, input_section, (uint64_t) rel->r_offset, name);
c96a8570
BS
2633 return FALSE;
2634
2635 }
48d502e1 2636
c96a8570 2637 break;
ab96bf03 2638
c96a8570
BS
2639 default:
2640 non_fdpic:
2641 picrel = NULL;
1d5316ab
AM
2642 if (h && ! BFINFDPIC_SYM_LOCAL (info, h)
2643 && _bfd_elf_section_offset (output_bfd, info, input_section,
2644 rel->r_offset) != (bfd_vma) -1)
c96a8570
BS
2645 {
2646 info->callbacks->warning
2647 (info, _("relocation references symbol not defined in the module"),
2648 name, input_bfd, input_section, rel->r_offset);
2649 return FALSE;
2650 }
2651 break;
48d502e1
BS
2652 }
2653
c96a8570 2654 switch (r_type)
ab96bf03 2655 {
cb88ce9f
BS
2656 case R_BFIN_PCREL24:
2657 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS
2658 check_segment[0] = isec_segment;
2659 if (! IS_FDPIC (output_bfd))
2660 check_segment[1] = isec_segment;
2661 else if (picrel->plt)
2662 {
2663 relocation = bfinfdpic_plt_section (info)->output_section->vma
2664 + bfinfdpic_plt_section (info)->output_offset
2665 + picrel->plt_entry;
2666 check_segment[1] = plt_segment;
2667 }
2668 /* We don't want to warn on calls to undefined weak symbols,
2669 as calls to them must be protected by non-NULL tests
2670 anyway, and unprotected calls would invoke undefined
2671 behavior. */
2672 else if (picrel->symndx == -1
2673 && picrel->d.h->root.type == bfd_link_hash_undefweak)
2674 check_segment[1] = check_segment[0];
2675 else
2676 check_segment[1] = sec
2677 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2678 : (unsigned)-1;
2679 break;
ab96bf03 2680
c96a8570
BS
2681 case R_BFIN_GOT17M4:
2682 case R_BFIN_GOTHI:
2683 case R_BFIN_GOTLO:
2684 relocation = picrel->got_entry;
2685 check_segment[0] = check_segment[1] = got_segment;
2686 break;
ab96bf03 2687
c96a8570
BS
2688 case R_BFIN_FUNCDESC_GOT17M4:
2689 case R_BFIN_FUNCDESC_GOTHI:
2690 case R_BFIN_FUNCDESC_GOTLO:
2691 relocation = picrel->fdgot_entry;
2692 check_segment[0] = check_segment[1] = got_segment;
2693 break;
48d502e1 2694
c96a8570
BS
2695 case R_BFIN_GOTOFFHI:
2696 case R_BFIN_GOTOFF17M4:
2697 case R_BFIN_GOTOFFLO:
2698 relocation -= bfinfdpic_got_section (info)->output_section->vma
2699 + bfinfdpic_got_section (info)->output_offset
2700 + bfinfdpic_got_initial_offset (info);
2701 check_segment[0] = got_segment;
2702 check_segment[1] = sec
2703 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2704 : (unsigned)-1;
2705 break;
48d502e1 2706
c96a8570
BS
2707 case R_BFIN_FUNCDESC_GOTOFF17M4:
2708 case R_BFIN_FUNCDESC_GOTOFFHI:
2709 case R_BFIN_FUNCDESC_GOTOFFLO:
2710 relocation = picrel->fd_entry;
2711 check_segment[0] = check_segment[1] = got_segment;
2712 break;
48d502e1 2713
c96a8570 2714 case R_BFIN_FUNCDESC:
48d502e1 2715 {
c96a8570
BS
2716 int dynindx;
2717 bfd_vma addend = rel->r_addend;
48d502e1 2718
c96a8570
BS
2719 if (! (h && h->root.type == bfd_link_hash_undefweak
2720 && BFINFDPIC_SYM_LOCAL (info, h)))
2721 {
2722 /* If the symbol is dynamic and there may be dynamic
2723 symbol resolution because we are or are linked with a
2724 shared library, emit a FUNCDESC relocation such that
2725 the dynamic linker will allocate the function
2726 descriptor. If the symbol needs a non-local function
2727 descriptor but binds locally (e.g., its visibility is
2728 protected, emit a dynamic relocation decayed to
2729 section+offset. */
2730 if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h)
2731 && BFINFDPIC_SYM_LOCAL (info, h)
3cbc1e5e 2732 && !bfd_link_pde (info))
c96a8570
BS
2733 {
2734 dynindx = elf_section_data (h->root.u.def.section
2735 ->output_section)->dynindx;
2736 addend += h->root.u.def.section->output_offset
2737 + h->root.u.def.value;
2738 }
2739 else if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h))
2740 {
2741 if (addend)
2742 {
2743 info->callbacks->warning
2744 (info, _("R_BFIN_FUNCDESC references dynamic symbol with nonzero addend"),
2745 name, input_bfd, input_section, rel->r_offset);
2746 return FALSE;
2747 }
2748 dynindx = h->dynindx;
2749 }
2750 else
2751 {
2752 /* Otherwise, we know we have a private function
2753 descriptor, so reference it directly. */
2754 BFD_ASSERT (picrel->privfd);
cb88ce9f 2755 r_type = R_BFIN_BYTE4_DATA;
c96a8570
BS
2756 dynindx = elf_section_data (bfinfdpic_got_section (info)
2757 ->output_section)->dynindx;
2758 addend = bfinfdpic_got_section (info)->output_offset
2759 + bfinfdpic_got_initial_offset (info)
2760 + picrel->fd_entry;
2761 }
2762
2763 /* If there is room for dynamic symbol resolution, emit
2764 the dynamic relocation. However, if we're linking an
2765 executable at a fixed location, we won't have emitted a
2766 dynamic symbol entry for the got section, so idx will
2767 be zero, which means we can and should compute the
2768 address of the private descriptor ourselves. */
3cbc1e5e 2769 if (bfd_link_pde (info)
c96a8570
BS
2770 && (!h || BFINFDPIC_FUNCDESC_LOCAL (info, h)))
2771 {
6a9adeca
BS
2772 bfd_vma offset;
2773
c96a8570
BS
2774 addend += bfinfdpic_got_section (info)->output_section->vma;
2775 if ((bfd_get_section_flags (output_bfd,
2776 input_section->output_section)
2777 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2778 {
2779 if (_bfinfdpic_osec_readonly_p (output_bfd,
2780 input_section
2781 ->output_section))
2782 {
2783 info->callbacks->warning
2784 (info,
2785 _("cannot emit fixups in read-only section"),
2786 name, input_bfd, input_section, rel->r_offset);
2787 return FALSE;
2788 }
6a9adeca
BS
2789
2790 offset = _bfd_elf_section_offset
2791 (output_bfd, info,
2792 input_section, rel->r_offset);
2793
2794 if (offset != (bfd_vma)-1)
2795 _bfinfdpic_add_rofixup (output_bfd,
2796 bfinfdpic_gotfixup_section
2797 (info),
2798 offset + input_section
2799 ->output_section->vma
2800 + input_section->output_offset,
2801 picrel);
c96a8570
BS
2802 }
2803 }
2804 else if ((bfd_get_section_flags (output_bfd,
2805 input_section->output_section)
2806 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2807 {
2808 bfd_vma offset;
2809
2810 if (_bfinfdpic_osec_readonly_p (output_bfd,
2811 input_section
2812 ->output_section))
2813 {
2814 info->callbacks->warning
2815 (info,
2816 _("cannot emit dynamic relocations in read-only section"),
2817 name, input_bfd, input_section, rel->r_offset);
2818 return FALSE;
2819 }
2820 offset = _bfd_elf_section_offset (output_bfd, info,
2821 input_section, rel->r_offset);
6a9adeca
BS
2822
2823 if (offset != (bfd_vma)-1)
c96a8570
BS
2824 _bfinfdpic_add_dyn_reloc (output_bfd,
2825 bfinfdpic_gotrel_section (info),
2826 offset + input_section
2827 ->output_section->vma
2828 + input_section->output_offset,
2829 r_type,
2830 dynindx, addend, picrel);
2831 }
2832 else
2833 addend += bfinfdpic_got_section (info)->output_section->vma;
2834 }
2835
2836 /* We want the addend in-place because dynamic
2837 relocations are REL. Setting relocation to it should
2838 arrange for it to be installed. */
2839 relocation = addend - rel->r_addend;
2840 }
2841 check_segment[0] = check_segment[1] = got_segment;
2842 break;
2843
cb88ce9f 2844 case R_BFIN_BYTE4_DATA:
c96a8570 2845 if (! IS_FDPIC (output_bfd))
7a84e3da 2846 {
c96a8570
BS
2847 check_segment[0] = check_segment[1] = -1;
2848 break;
7a84e3da 2849 }
c96a8570
BS
2850 /* Fall through. */
2851 case R_BFIN_FUNCDESC_VALUE:
2852 {
2853 int dynindx;
2854 bfd_vma addend = rel->r_addend;
2855 bfd_vma offset;
2856 offset = _bfd_elf_section_offset (output_bfd, info,
2857 input_section, rel->r_offset);
7a84e3da 2858
c96a8570
BS
2859 /* If the symbol is dynamic but binds locally, use
2860 section+offset. */
2861 if (h && ! BFINFDPIC_SYM_LOCAL (info, h))
48d502e1 2862 {
c96a8570
BS
2863 if (addend && r_type == R_BFIN_FUNCDESC_VALUE)
2864 {
2865 info->callbacks->warning
2866 (info, _("R_BFIN_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
2867 name, input_bfd, input_section, rel->r_offset);
2868 return FALSE;
2869 }
2870 dynindx = h->dynindx;
48d502e1 2871 }
c96a8570 2872 else
48d502e1 2873 {
c96a8570
BS
2874 if (h)
2875 addend += h->root.u.def.value;
2876 else
2877 addend += sym->st_value;
2878 if (osec)
2879 addend += osec->output_offset;
2880 if (osec && osec->output_section
2881 && ! bfd_is_abs_section (osec->output_section)
2882 && ! bfd_is_und_section (osec->output_section))
2883 dynindx = elf_section_data (osec->output_section)->dynindx;
2884 else
2885 dynindx = 0;
2886 }
48d502e1 2887
c96a8570
BS
2888 /* If we're linking an executable at a fixed address, we
2889 can omit the dynamic relocation as long as the symbol
2890 is defined in the current link unit (which is implied
2891 by its output section not being NULL). */
3cbc1e5e 2892 if (bfd_link_pde (info)
c96a8570
BS
2893 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
2894 {
2895 if (osec)
2896 addend += osec->output_section->vma;
2897 if (IS_FDPIC (input_bfd)
2898 && (bfd_get_section_flags (output_bfd,
2899 input_section->output_section)
2900 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 2901 {
c96a8570
BS
2902 if (_bfinfdpic_osec_readonly_p (output_bfd,
2903 input_section
2904 ->output_section))
48d502e1 2905 {
c96a8570
BS
2906 info->callbacks->warning
2907 (info,
2908 _("cannot emit fixups in read-only section"),
2909 name, input_bfd, input_section, rel->r_offset);
2910 return FALSE;
2911 }
2912 if (!h || h->root.type != bfd_link_hash_undefweak)
2913 {
6a9adeca 2914 if (offset != (bfd_vma)-1)
c96a8570 2915 {
6a9adeca
BS
2916 _bfinfdpic_add_rofixup (output_bfd,
2917 bfinfdpic_gotfixup_section
2918 (info),
2919 offset + input_section
2920 ->output_section->vma
2921 + input_section->output_offset,
2922 picrel);
2923
2924 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS
2925 _bfinfdpic_add_rofixup
2926 (output_bfd,
2927 bfinfdpic_gotfixup_section (info),
2928 offset + input_section->output_section->vma
2929 + input_section->output_offset + 4, picrel);
2930 }
48d502e1
BS
2931 }
2932 }
48d502e1
BS
2933 }
2934 else
2935 {
c96a8570
BS
2936 if ((bfd_get_section_flags (output_bfd,
2937 input_section->output_section)
2938 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 2939 {
c96a8570
BS
2940 if (_bfinfdpic_osec_readonly_p (output_bfd,
2941 input_section
2942 ->output_section))
48d502e1 2943 {
c96a8570
BS
2944 info->callbacks->warning
2945 (info,
2946 _("cannot emit dynamic relocations in read-only section"),
2947 name, input_bfd, input_section, rel->r_offset);
2948 return FALSE;
48d502e1 2949 }
6a9adeca
BS
2950
2951 if (offset != (bfd_vma)-1)
c96a8570
BS
2952 _bfinfdpic_add_dyn_reloc (output_bfd,
2953 bfinfdpic_gotrel_section (info),
2954 offset
6a9adeca 2955 + input_section->output_section->vma
c96a8570
BS
2956 + input_section->output_offset,
2957 r_type, dynindx, addend, picrel);
48d502e1 2958 }
c96a8570
BS
2959 else if (osec)
2960 addend += osec->output_section->vma;
2961 /* We want the addend in-place because dynamic
2962 relocations are REL. Setting relocation to it
2963 should arrange for it to be installed. */
2964 relocation = addend - rel->r_addend;
2965 }
2966
6a9adeca 2967 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS
2968 {
2969 /* If we've omitted the dynamic relocation, just emit
2970 the fixed addresses of the symbol and of the local
2971 GOT base offset. */
3cbc1e5e 2972 if (bfd_link_pde (info)
c96a8570
BS
2973 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
2974 bfd_put_32 (output_bfd,
2975 bfinfdpic_got_section (info)->output_section->vma
2976 + bfinfdpic_got_section (info)->output_offset
2977 + bfinfdpic_got_initial_offset (info),
2978 contents + rel->r_offset + 4);
2979 else
2980 /* A function descriptor used for lazy or local
2981 resolving is initialized such that its high word
2982 contains the output section index in which the
2983 PLT entries are located, and the low word
2984 contains the offset of the lazy PLT entry entry
2985 point into that section. */
2986 bfd_put_32 (output_bfd,
2987 h && ! BFINFDPIC_SYM_LOCAL (info, h)
2988 ? 0
2989 : _bfinfdpic_osec_to_segment (output_bfd,
2990 sec
2991 ->output_section),
2992 contents + rel->r_offset + 4);
48d502e1 2993 }
c96a8570
BS
2994 }
2995 check_segment[0] = check_segment[1] = got_segment;
2996 break;
2997
2998 default:
2999 check_segment[0] = isec_segment;
3000 check_segment[1] = sec
3001 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
3002 : (unsigned)-1;
3003 break;
3004 }
3005
3006 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3007 {
3008#if 1 /* If you take this out, remove the #error from fdpic-static-6.d
3009 in the ld testsuite. */
3010 /* This helps catch problems in GCC while we can't do more
3011 than static linking. The idea is to test whether the
3012 input file basename is crt0.o only once. */
3013 if (silence_segment_error == 1)
3014 silence_segment_error =
3015 (strlen (input_bfd->filename) == 6
007d6189 3016 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
c96a8570 3017 || (strlen (input_bfd->filename) > 6
007d6189
KT
3018 && filename_cmp (input_bfd->filename
3019 + strlen (input_bfd->filename) - 7,
c96a8570
BS
3020 "/crt0.o") == 0)
3021 ? -1 : 0;
3022#endif
3023 if (!silence_segment_error
3024 /* We don't want duplicate errors for undefined
3025 symbols. */
3026 && !(picrel && picrel->symndx == -1
3027 && picrel->d.h->root.type == bfd_link_hash_undefined))
3028 info->callbacks->warning
3029 (info,
0e1862bb 3030 bfd_link_pic (info)
c96a8570
BS
3031 ? _("relocations between different segments are not supported")
3032 : _("warning: relocation references a different segment"),
3033 name, input_bfd, input_section, rel->r_offset);
0e1862bb 3034 if (!silence_segment_error && bfd_link_pic (info))
c96a8570
BS
3035 return FALSE;
3036 elf_elfheader (output_bfd)->e_flags |= EF_BFIN_PIC;
3037 }
3038
3039 switch (r_type)
3040 {
3041 case R_BFIN_GOTOFFHI:
3042 /* We need the addend to be applied before we shift the
3043 value right. */
3044 relocation += rel->r_addend;
3045 /* Fall through. */
3046 case R_BFIN_GOTHI:
3047 case R_BFIN_FUNCDESC_GOTHI:
3048 case R_BFIN_FUNCDESC_GOTOFFHI:
3049 relocation >>= 16;
3050 /* Fall through. */
48d502e1 3051
c96a8570
BS
3052 case R_BFIN_GOTLO:
3053 case R_BFIN_FUNCDESC_GOTLO:
3054 case R_BFIN_GOTOFFLO:
3055 case R_BFIN_FUNCDESC_GOTOFFLO:
3056 relocation &= 0xffff;
3057 break;
48d502e1 3058
48d502e1 3059 default:
48d502e1
BS
3060 break;
3061 }
3062
c96a8570 3063 switch (r_type)
48d502e1 3064 {
cb88ce9f
BS
3065 case R_BFIN_PCREL24:
3066 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS
3067 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3068 break;
3069 /* Fall through. */
3070
3071 /* When referencing a GOT entry, a function descriptor or a
3072 PLT, we don't want the addend to apply to the reference,
3073 but rather to the referenced symbol. The actual entry
3074 will have already been created taking the addend into
3075 account, so cancel it out here. */
3076 case R_BFIN_GOT17M4:
3077 case R_BFIN_GOTHI:
3078 case R_BFIN_GOTLO:
3079 case R_BFIN_FUNCDESC_GOT17M4:
3080 case R_BFIN_FUNCDESC_GOTHI:
3081 case R_BFIN_FUNCDESC_GOTLO:
3082 case R_BFIN_FUNCDESC_GOTOFF17M4:
3083 case R_BFIN_FUNCDESC_GOTOFFHI:
3084 case R_BFIN_FUNCDESC_GOTOFFLO:
3085 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF17M4
3086 here, since we do want to apply the addend to the others.
3087 Note that we've applied the addend to GOTOFFHI before we
3088 shifted it right. */
3089 case R_BFIN_GOTOFFHI:
3090 relocation -= rel->r_addend;
3091 break;
3092
3093 default:
3094 break;
48d502e1
BS
3095 }
3096
c96a8570
BS
3097 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
3098 contents, rel->r_offset,
3099 relocation, rel->r_addend);
3100
48d502e1
BS
3101 if (r != bfd_reloc_ok)
3102 {
c96a8570 3103 const char * msg = (const char *) NULL;
48d502e1 3104
c96a8570 3105 switch (r)
48d502e1 3106 {
c96a8570 3107 case bfd_reloc_overflow:
1a72702b 3108 (*info->callbacks->reloc_overflow)
c96a8570
BS
3109 (info, (h ? &h->root : NULL), name, howto->name,
3110 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3111 break;
0f64bb02 3112
c96a8570 3113 case bfd_reloc_undefined:
1a72702b 3114 (*info->callbacks->undefined_symbol)
c96a8570
BS
3115 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3116 break;
3117
3118 case bfd_reloc_outofrange:
3119 msg = _("internal error: out of range error");
3120 break;
3121
3122 case bfd_reloc_notsupported:
3123 msg = _("internal error: unsupported relocation error");
3124 break;
3125
3126 case bfd_reloc_dangerous:
3127 msg = _("internal error: dangerous relocation");
3128 break;
3129
3130 default:
3131 msg = _("internal error: unknown error");
3132 break;
48d502e1 3133 }
c96a8570
BS
3134
3135 if (msg)
1a72702b
AM
3136 (*info->callbacks->warning) (info, msg, name, input_bfd,
3137 input_section, rel->r_offset);
48d502e1
BS
3138 }
3139 }
3140
3141 return TRUE;
3142}
3143
48d502e1
BS
3144/* We need dynamic symbols for every section, since segments can
3145 relocate independently. */
3146static bfd_boolean
3147_bfinfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
51408ec2
AM
3148 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3149 asection *p)
48d502e1
BS
3150{
3151 switch (elf_section_data (p)->this_hdr.sh_type)
3152 {
3153 case SHT_PROGBITS:
3154 case SHT_NOBITS:
3155 /* If sh_type is yet undecided, assume it could be
3156 SHT_PROGBITS/SHT_NOBITS. */
3157 case SHT_NULL:
3158 return FALSE;
3159
3160 /* There shouldn't be section relative relocations
3161 against any other section. */
3162 default:
3163 return TRUE;
3164 }
3165}
3166
3167/* Create a .got section, as well as its additional info field. This
3168 is almost entirely copied from
3169 elflink.c:_bfd_elf_create_got_section(). */
3170
3171static bfd_boolean
3172_bfin_create_got_section (bfd *abfd, struct bfd_link_info *info)
3173{
3174 flagword flags, pltflags;
3175 asection *s;
3176 struct elf_link_hash_entry *h;
48d502e1
BS
3177 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3178 int ptralign;
48d502e1
BS
3179
3180 /* This function may be called more than once. */
ce558b89 3181 s = elf_hash_table (info)->sgot;
3d4d4302 3182 if (s != NULL)
48d502e1
BS
3183 return TRUE;
3184
3185 /* Machine specific: although pointers are 32-bits wide, we want the
3186 GOT to be aligned to a 64-bit boundary, such that function
3187 descriptors in it can be accessed with 64-bit loads and
3188 stores. */
3189 ptralign = 3;
3190
3191 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3192 | SEC_LINKER_CREATED);
3193 pltflags = flags;
3194
3d4d4302 3195 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
ce558b89 3196 elf_hash_table (info)->sgot = s;
48d502e1
BS
3197 if (s == NULL
3198 || !bfd_set_section_alignment (abfd, s, ptralign))
3199 return FALSE;
3200
48d502e1
BS
3201 if (bed->want_got_sym)
3202 {
3203 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
3204 (or .got.plt) section. We don't do this in the linker script
3205 because we don't want to define the symbol if we are not creating
3206 a global offset table. */
5592d7ec 3207 h = _bfd_elf_define_linkage_sym (abfd, info, s, "__GLOBAL_OFFSET_TABLE_");
48d502e1
BS
3208 elf_hash_table (info)->hgot = h;
3209 if (h == NULL)
3210 return FALSE;
3211
3212 /* Machine-specific: we want the symbol for executables as
3213 well. */
3214 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3215 return FALSE;
3216 }
3217
3218 /* The first bit of the global offset table is the header. */
3219 s->size += bed->got_header_size;
3220
3221 /* This is the machine-specific part. Create and initialize section
3222 data for the got. */
3223 if (IS_FDPIC (abfd))
3224 {
48d502e1
BS
3225 bfinfdpic_relocs_info (info) = htab_try_create (1,
3226 bfinfdpic_relocs_info_hash,
3227 bfinfdpic_relocs_info_eq,
3228 (htab_del) NULL);
3229 if (! bfinfdpic_relocs_info (info))
3230 return FALSE;
3231
3d4d4302
AM
3232 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
3233 (flags | SEC_READONLY));
48d502e1
BS
3234 if (s == NULL
3235 || ! bfd_set_section_alignment (abfd, s, 2))
3236 return FALSE;
3237
3238 bfinfdpic_gotrel_section (info) = s;
3239
3240 /* Machine-specific. */
3d4d4302
AM
3241 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
3242 (flags | SEC_READONLY));
48d502e1
BS
3243 if (s == NULL
3244 || ! bfd_set_section_alignment (abfd, s, 2))
3245 return FALSE;
3246
3247 bfinfdpic_gotfixup_section (info) = s;
48d502e1
BS
3248 }
3249
48d502e1
BS
3250 pltflags |= SEC_CODE;
3251 if (bed->plt_not_loaded)
3252 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
3253 if (bed->plt_readonly)
3254 pltflags |= SEC_READONLY;
3255
3d4d4302 3256 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
48d502e1 3257 if (s == NULL
48d502e1
BS
3258 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3259 return FALSE;
3260 /* Blackfin-specific: remember it. */
3261 bfinfdpic_plt_section (info) = s;
3262
3263 if (bed->want_plt_sym)
3264 {
3265 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3266 .plt section. */
48d502e1
BS
3267 struct bfd_link_hash_entry *bh = NULL;
3268
3269 if (! (_bfd_generic_link_add_one_symbol
5592d7ec 3270 (info, abfd, "__PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
48d502e1
BS
3271 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
3272 return FALSE;
3273 h = (struct elf_link_hash_entry *) bh;
3274 h->def_regular = 1;
3275 h->type = STT_OBJECT;
3276
0e1862bb 3277 if (! bfd_link_executable (info)
48d502e1
BS
3278 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3279 return FALSE;
3280 }
3281
3282 /* Blackfin-specific: we want rel relocations for the plt. */
3d4d4302
AM
3283 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
3284 flags | SEC_READONLY);
48d502e1 3285 if (s == NULL
48d502e1
BS
3286 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
3287 return FALSE;
3288 /* Blackfin-specific: remember it. */
3289 bfinfdpic_pltrel_section (info) = s;
3290
6a9adeca
BS
3291 return TRUE;
3292}
3293
3294/* Make sure the got and plt sections exist, and that our pointers in
3295 the link hash table point to them. */
3296
3297static bfd_boolean
3298elf32_bfinfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3299{
3300 /* This is mostly copied from
3301 elflink.c:_bfd_elf_create_dynamic_sections(). */
3302 flagword flags;
3303 asection *s;
3304 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3305
3306 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3307 | SEC_LINKER_CREATED);
3308
3309 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3310 .rel[a].bss sections. */
3311
48d502e1
BS
3312 /* Blackfin-specific: we want to create the GOT in the Blackfin way. */
3313 if (! _bfin_create_got_section (abfd, info))
3314 return FALSE;
3315
3316 /* Blackfin-specific: make sure we created everything we wanted. */
3317 BFD_ASSERT (bfinfdpic_got_section (info) && bfinfdpic_gotrel_section (info)
3318 /* && bfinfdpic_gotfixup_section (info) */
3319 && bfinfdpic_plt_section (info)
3320 && bfinfdpic_pltrel_section (info));
3321
3322 if (bed->want_dynbss)
3323 {
3324 /* The .dynbss section is a place to put symbols which are defined
3325 by dynamic objects, are referenced by regular objects, and are
3326 not functions. We must allocate space for them in the process
3327 image and use a R_*_COPY reloc to tell the dynamic linker to
3328 initialize them at run time. The linker script puts the .dynbss
3329 section into the .bss section of the final image. */
3d4d4302
AM
3330 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3331 SEC_ALLOC | SEC_LINKER_CREATED);
117ed4f8 3332 if (s == NULL)
48d502e1
BS
3333 return FALSE;
3334
3335 /* The .rel[a].bss section holds copy relocs. This section is not
3d4d4302
AM
3336 normally needed. We need to create it here, though, so that the
3337 linker will map it to an output section. We can't just create it
3338 only if we need it, because we will not know whether we need it
3339 until we have seen all the input files, and the first time the
3340 main linker code calls BFD after examining all the input files
3341 (size_dynamic_sections) the input sections have already been
3342 mapped to the output sections. If the section turns out not to
3343 be needed, we can discard it later. We will never need this
3344 section when generating a shared object, since they do not use
3345 copy relocs. */
0e1862bb 3346 if (! bfd_link_pic (info))
48d502e1 3347 {
3d4d4302
AM
3348 s = bfd_make_section_anyway_with_flags (abfd,
3349 ".rela.bss",
3350 flags | SEC_READONLY);
48d502e1 3351 if (s == NULL
48d502e1
BS
3352 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
3353 return FALSE;
3354 }
3355 }
3356
3357 return TRUE;
3358}
3359
48d502e1
BS
3360/* Compute the total GOT size required by each symbol in each range.
3361 Symbols may require up to 4 words in the GOT: an entry pointing to
3362 the symbol, an entry pointing to its function descriptor, and a
3363 private function descriptors taking two words. */
3364
6a9adeca
BS
3365static void
3366_bfinfdpic_count_nontls_entries (struct bfinfdpic_relocs_info *entry,
3367 struct _bfinfdpic_dynamic_got_info *dinfo)
48d502e1 3368{
48d502e1
BS
3369 /* Allocate space for a GOT entry pointing to the symbol. */
3370 if (entry->got17m4)
3371 dinfo->got17m4 += 4;
3372 else if (entry->gothilo)
3373 dinfo->gothilo += 4;
3374 else
3375 entry->relocs32--;
3376 entry->relocs32++;
3377
3378 /* Allocate space for a GOT entry pointing to the function
3379 descriptor. */
3380 if (entry->fdgot17m4)
3381 dinfo->got17m4 += 4;
3382 else if (entry->fdgothilo)
3383 dinfo->gothilo += 4;
3384 else
3385 entry->relocsfd--;
3386 entry->relocsfd++;
3387
3388 /* Decide whether we need a PLT entry, a function descriptor in the
3389 GOT, and a lazy PLT entry for this symbol. */
3390 entry->plt = entry->call
3391 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3392 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3393 entry->privfd = entry->plt
3394 || entry->fdgoff17m4 || entry->fdgoffhilo
3395 || ((entry->fd || entry->fdgot17m4 || entry->fdgothilo)
3396 && (entry->symndx != -1
3397 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
3398 entry->lazyplt = entry->privfd
3399 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3400 && ! (dinfo->info->flags & DF_BIND_NOW)
3401 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3402
3403 /* Allocate space for a function descriptor. */
3404 if (entry->fdgoff17m4)
3405 dinfo->fd17m4 += 8;
3406 else if (entry->privfd && entry->plt)
3407 dinfo->fdplt += 8;
3408 else if (entry->privfd)
3409 dinfo->fdhilo += 8;
3410 else
3411 entry->relocsfdv--;
3412 entry->relocsfdv++;
3413
3414 if (entry->lazyplt)
3415 dinfo->lzplt += LZPLT_NORMAL_SIZE;
6a9adeca
BS
3416}
3417
3418/* Compute the number of dynamic relocations and fixups that a symbol
3419 requires, and add (or subtract) from the grand and per-symbol
3420 totals. */
3421
3422static void
3423_bfinfdpic_count_relocs_fixups (struct bfinfdpic_relocs_info *entry,
3424 struct _bfinfdpic_dynamic_got_info *dinfo,
3425 bfd_boolean subtract)
3426{
3427 bfd_vma relocs = 0, fixups = 0;
48d502e1 3428
3cbc1e5e 3429 if (!bfd_link_pde (dinfo->info))
48d502e1
BS
3430 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv;
3431 else
3432 {
3433 if (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
3434 {
3435 if (entry->symndx != -1
3436 || entry->d.h->root.type != bfd_link_hash_undefweak)
3437 fixups += entry->relocs32 + 2 * entry->relocsfdv;
3438 }
3439 else
3440 relocs += entry->relocs32 + entry->relocsfdv;
3441
3442 if (entry->symndx != -1
3443 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
3444 {
3445 if (entry->symndx != -1
3446 || entry->d.h->root.type != bfd_link_hash_undefweak)
3447 fixups += entry->relocsfd;
3448 }
3449 else
3450 relocs += entry->relocsfd;
3451 }
3452
6a9adeca
BS
3453 if (subtract)
3454 {
3455 relocs = - relocs;
3456 fixups = - fixups;
3457 }
3458
48d502e1
BS
3459 entry->dynrelocs += relocs;
3460 entry->fixups += fixups;
3461 dinfo->relocs += relocs;
3462 dinfo->fixups += fixups;
6a9adeca
BS
3463}
3464
3465/* Compute the total GOT and PLT size required by each symbol in each range. *
3466 Symbols may require up to 4 words in the GOT: an entry pointing to
3467 the symbol, an entry pointing to its function descriptor, and a
3468 private function descriptors taking two words. */
3469
3470static int
3471_bfinfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
3472{
3473 struct bfinfdpic_relocs_info *entry = *entryp;
3474 struct _bfinfdpic_dynamic_got_info *dinfo = dinfo_;
3475
3476 _bfinfdpic_count_nontls_entries (entry, dinfo);
3477
3478 _bfinfdpic_count_relocs_fixups (entry, dinfo, FALSE);
48d502e1
BS
3479
3480 return 1;
3481}
3482
3483/* This structure is used to assign offsets to got entries, function
3484 descriptors, plt entries and lazy plt entries. */
3485
3486struct _bfinfdpic_dynamic_got_plt_info
3487{
3488 /* Summary information collected with _bfinfdpic_count_got_plt_entries. */
3489 struct _bfinfdpic_dynamic_got_info g;
3490
3491 /* For each addressable range, we record a MAX (positive) and MIN
3492 (negative) value. CUR is used to assign got entries, and it's
3493 incremented from an initial positive value to MAX, then from MIN
3494 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
3495 assign function descriptors, and it's decreased from an initial
3496 non-positive value to MIN, then from MAX down to CUR (unless CUR
3497 wraps around first). All of MIN, MAX, CUR and FDCUR always point
3498 to even words. ODD, if non-zero, indicates an odd word to be
3499 used for the next got entry, otherwise CUR is used and
3500 incremented by a pair of words, wrapping around when it reaches
3501 MAX. FDCUR is decremented (and wrapped) before the next function
3502 descriptor is chosen. FDPLT indicates the number of remaining
3503 slots that can be used for function descriptors used only by PLT
3504 entries. */
3505 struct _bfinfdpic_dynamic_got_alloc_data
3506 {
3507 bfd_signed_vma max, cur, odd, fdcur, min;
3508 bfd_vma fdplt;
3509 } got17m4, gothilo;
3510};
3511
3512/* Determine the positive and negative ranges to be used by each
3513 offset range in the GOT. FDCUR and CUR, that must be aligned to a
3514 double-word boundary, are the minimum (negative) and maximum
3515 (positive) GOT offsets already used by previous ranges, except for
3516 an ODD entry that may have been left behind. GOT and FD indicate
3517 the size of GOT entries and function descriptors that must be
3518 placed within the range from -WRAP to WRAP. If there's room left,
3519 up to FDPLT bytes should be reserved for additional function
3520 descriptors. */
3521
3522inline static bfd_signed_vma
3523_bfinfdpic_compute_got_alloc_data (struct _bfinfdpic_dynamic_got_alloc_data *gad,
3524 bfd_signed_vma fdcur,
3525 bfd_signed_vma odd,
3526 bfd_signed_vma cur,
3527 bfd_vma got,
3528 bfd_vma fd,
3529 bfd_vma fdplt,
3530 bfd_vma wrap)
3531{
3532 bfd_signed_vma wrapmin = -wrap;
3533
3534 /* Start at the given initial points. */
3535 gad->fdcur = fdcur;
3536 gad->cur = cur;
3537
3538 /* If we had an incoming odd word and we have any got entries that
3539 are going to use it, consume it, otherwise leave gad->odd at
3540 zero. We might force gad->odd to zero and return the incoming
3541 odd such that it is used by the next range, but then GOT entries
3542 might appear to be out of order and we wouldn't be able to
3543 shorten the GOT by one word if it turns out to end with an
3544 unpaired GOT entry. */
3545 if (odd && got)
3546 {
3547 gad->odd = odd;
3548 got -= 4;
3549 odd = 0;
3550 }
3551 else
3552 gad->odd = 0;
3553
3554 /* If we're left with an unpaired GOT entry, compute its location
3555 such that we can return it. Otherwise, if got doesn't require an
3556 odd number of words here, either odd was already zero in the
3557 block above, or it was set to zero because got was non-zero, or
3558 got was already zero. In the latter case, we want the value of
3559 odd to carry over to the return statement, so we don't want to
3560 reset odd unless the condition below is true. */
3561 if (got & 4)
3562 {
3563 odd = cur + got;
3564 got += 4;
3565 }
3566
3567 /* Compute the tentative boundaries of this range. */
3568 gad->max = cur + got;
3569 gad->min = fdcur - fd;
3570 gad->fdplt = 0;
3571
3572 /* If function descriptors took too much space, wrap some of them
3573 around. */
3574 if (gad->min < wrapmin)
3575 {
3576 gad->max += wrapmin - gad->min;
3577 gad->min = wrapmin;
3578 }
3579 /* If there is space left and we have function descriptors
3580 referenced in PLT entries that could take advantage of shorter
3581 offsets, place them here. */
3582 else if (fdplt && gad->min > wrapmin)
3583 {
3584 bfd_vma fds;
3585 if ((bfd_vma) (gad->min - wrapmin) < fdplt)
3586 fds = gad->min - wrapmin;
3587 else
3588 fds = fdplt;
3589
3590 fdplt -= fds;
3591 gad->min -= fds;
3592 gad->fdplt += fds;
3593 }
3594
3595 /* If GOT entries took too much space, wrap some of them around.
3596 This may well cause gad->min to become lower than wrapmin. This
3597 will cause a relocation overflow later on, so we don't have to
3598 report it here . */
3599 if ((bfd_vma) gad->max > wrap)
3600 {
3601 gad->min -= gad->max - wrap;
3602 gad->max = wrap;
3603 }
3604 /* If there is more space left, try to place some more function
3605 descriptors for PLT entries. */
3606 else if (fdplt && (bfd_vma) gad->max < wrap)
3607 {
3608 bfd_vma fds;
3609 if ((bfd_vma) (wrap - gad->max) < fdplt)
3610 fds = wrap - gad->max;
3611 else
3612 fds = fdplt;
3613
3614 fdplt -= fds;
3615 gad->max += fds;
3616 gad->fdplt += fds;
3617 }
3618
3619 /* If odd was initially computed as an offset past the wrap point,
3620 wrap it around. */
3621 if (odd > gad->max)
3622 odd = gad->min + odd - gad->max;
3623
3624 /* _bfinfdpic_get_got_entry() below will always wrap gad->cur if needed
3625 before returning, so do it here too. This guarantees that,
3626 should cur and fdcur meet at the wrap point, they'll both be
3627 equal to min. */
3628 if (gad->cur == gad->max)
3629 gad->cur = gad->min;
3630
3631 return odd;
3632}
3633
3634/* Compute the location of the next GOT entry, given the allocation
3635 data for a range. */
3636
3637inline static bfd_signed_vma
3638_bfinfdpic_get_got_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3639{
3640 bfd_signed_vma ret;
3641
3642 if (gad->odd)
3643 {
3644 /* If there was an odd word left behind, use it. */
3645 ret = gad->odd;
3646 gad->odd = 0;
3647 }
3648 else
3649 {
3650 /* Otherwise, use the word pointed to by cur, reserve the next
3651 as an odd word, and skip to the next pair of words, possibly
3652 wrapping around. */
3653 ret = gad->cur;
3654 gad->odd = gad->cur + 4;
3655 gad->cur += 8;
3656 if (gad->cur == gad->max)
3657 gad->cur = gad->min;
3658 }
3659
3660 return ret;
3661}
3662
3663/* Compute the location of the next function descriptor entry in the
3664 GOT, given the allocation data for a range. */
3665
3666inline static bfd_signed_vma
3667_bfinfdpic_get_fd_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3668{
3669 /* If we're at the bottom, wrap around, and only then allocate the
3670 next pair of words. */
3671 if (gad->fdcur == gad->min)
3672 gad->fdcur = gad->max;
3673 return gad->fdcur -= 8;
3674}
3675
3676/* Assign GOT offsets for every GOT entry and function descriptor.
3677 Doing everything in a single pass is tricky. */
3678
3679static int
3680_bfinfdpic_assign_got_entries (void **entryp, void *info_)
3681{
3682 struct bfinfdpic_relocs_info *entry = *entryp;
3683 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3684
3685 if (entry->got17m4)
3686 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3687 else if (entry->gothilo)
3688 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3689
3690 if (entry->fdgot17m4)
3691 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3692 else if (entry->fdgothilo)
3693 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3694
3695 if (entry->fdgoff17m4)
3696 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3697 else if (entry->plt && dinfo->got17m4.fdplt)
3698 {
3699 dinfo->got17m4.fdplt -= 8;
3700 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3701 }
3702 else if (entry->plt)
3703 {
3704 dinfo->gothilo.fdplt -= 8;
3705 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3706 }
3707 else if (entry->privfd)
3708 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3709
3710 return 1;
3711}
3712
3713/* Assign GOT offsets to private function descriptors used by PLT
3714 entries (or referenced by 32-bit offsets), as well as PLT entries
3715 and lazy PLT entries. */
3716
3717static int
3718_bfinfdpic_assign_plt_entries (void **entryp, void *info_)
3719{
3720 struct bfinfdpic_relocs_info *entry = *entryp;
3721 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3722
3723 /* If this symbol requires a local function descriptor, allocate
3724 one. */
3725 if (entry->privfd && entry->fd_entry == 0)
3726 {
3727 if (dinfo->got17m4.fdplt)
3728 {
3729 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3730 dinfo->got17m4.fdplt -= 8;
3731 }
3732 else
3733 {
3734 BFD_ASSERT (dinfo->gothilo.fdplt);
3735 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3736 dinfo->gothilo.fdplt -= 8;
3737 }
3738 }
3739
3740 if (entry->plt)
3741 {
3742 int size;
3743
3744 /* We use the section's raw size to mark the location of the
3745 next PLT entry. */
3746 entry->plt_entry = bfinfdpic_plt_section (dinfo->g.info)->size;
3747
3748 /* Figure out the length of this PLT entry based on the
3749 addressing mode we need to reach the function descriptor. */
3750 BFD_ASSERT (entry->fd_entry);
3751 if (entry->fd_entry >= -(1 << (18 - 1))
3752 && entry->fd_entry + 4 < (1 << (18 - 1)))
3753 size = 10;
3754 else
3755 size = 16;
3756
3757 bfinfdpic_plt_section (dinfo->g.info)->size += size;
3758 }
3759
3760 if (entry->lazyplt)
3761 {
3762 entry->lzplt_entry = dinfo->g.lzplt;
3763 dinfo->g.lzplt += LZPLT_NORMAL_SIZE;
3764 /* If this entry is the one that gets the resolver stub, account
3765 for the additional instruction. */
3766 if (entry->lzplt_entry % BFINFDPIC_LZPLT_BLOCK_SIZE
3767 == BFINFDPIC_LZPLT_RESOLV_LOC)
3768 dinfo->g.lzplt += LZPLT_RESOLVER_EXTRA;
3769 }
3770
3771 return 1;
3772}
3773
6a9adeca
BS
3774/* Cancel out any effects of calling _bfinfdpic_assign_got_entries and
3775 _bfinfdpic_assign_plt_entries. */
3776
3777static int
3778_bfinfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
3779{
3780 struct bfinfdpic_relocs_info *entry = *entryp;
3781
3782 entry->got_entry = 0;
3783 entry->fdgot_entry = 0;
3784 entry->fd_entry = 0;
3785 entry->plt_entry = (bfd_vma)-1;
3786 entry->lzplt_entry = (bfd_vma)-1;
3787
3788 return 1;
3789}
3790
48d502e1
BS
3791/* Follow indirect and warning hash entries so that each got entry
3792 points to the final symbol definition. P must point to a pointer
3793 to the hash table we're traversing. Since this traversal may
3794 modify the hash table, we set this pointer to NULL to indicate
3795 we've made a potentially-destructive change to the hash table, so
3796 the traversal must be restarted. */
3797static int
3798_bfinfdpic_resolve_final_relocs_info (void **entryp, void *p)
3799{
3800 struct bfinfdpic_relocs_info *entry = *entryp;
3801 htab_t *htab = p;
3802
3803 if (entry->symndx == -1)
3804 {
3805 struct elf_link_hash_entry *h = entry->d.h;
3806 struct bfinfdpic_relocs_info *oentry;
3807
3808 while (h->root.type == bfd_link_hash_indirect
3809 || h->root.type == bfd_link_hash_warning)
3810 h = (struct elf_link_hash_entry *)h->root.u.i.link;
3811
3812 if (entry->d.h == h)
3813 return 1;
3814
3815 oentry = bfinfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
3816 NO_INSERT);
3817
3818 if (oentry)
3819 {
3820 /* Merge the two entries. */
3821 bfinfdpic_pic_merge_early_relocs_info (oentry, entry);
3822 htab_clear_slot (*htab, entryp);
3823 return 1;
3824 }
3825
3826 entry->d.h = h;
3827
3828 /* If we can't find this entry with the new bfd hash, re-insert
3829 it, and get the traversal restarted. */
3830 if (! htab_find (*htab, entry))
3831 {
3832 htab_clear_slot (*htab, entryp);
3833 entryp = htab_find_slot (*htab, entry, INSERT);
3834 if (! *entryp)
3835 *entryp = entry;
3836 /* Abort the traversal, since the whole table may have
3837 moved, and leave it up to the parent to restart the
3838 process. */
3839 *(htab_t *)p = NULL;
3840 return 0;
3841 }
3842 }
3843
3844 return 1;
3845}
3846
6a9adeca
BS
3847/* Compute the total size of the GOT, the PLT, the dynamic relocations
3848 section and the rofixup section. Assign locations for GOT and PLT
3849 entries. */
48d502e1
BS
3850
3851static bfd_boolean
6a9adeca
BS
3852_bfinfdpic_size_got_plt (bfd *output_bfd,
3853 struct _bfinfdpic_dynamic_got_plt_info *gpinfop)
48d502e1 3854{
48d502e1
BS
3855 bfd_signed_vma odd;
3856 bfd_vma limit;
6a9adeca
BS
3857 struct bfd_link_info *info = gpinfop->g.info;
3858 bfd *dynobj = elf_hash_table (info)->dynobj;
48d502e1 3859
6a9adeca
BS
3860 memcpy (bfinfdpic_dynamic_got_plt_info (info), &gpinfop->g,
3861 sizeof (gpinfop->g));
48d502e1
BS
3862
3863 odd = 12;
3864 /* Compute the total size taken by entries in the 18-bit range,
3865 to tell how many PLT function descriptors we can bring into it
3866 without causing it to overflow. */
6a9adeca 3867 limit = odd + gpinfop->g.got17m4 + gpinfop->g.fd17m4;
48d502e1
BS
3868 if (limit < (bfd_vma)1 << 18)
3869 limit = ((bfd_vma)1 << 18) - limit;
3870 else
3871 limit = 0;
6a9adeca
BS
3872 if (gpinfop->g.fdplt < limit)
3873 limit = gpinfop->g.fdplt;
48d502e1
BS
3874
3875 /* Determine the ranges of GOT offsets that we can use for each
3876 range of addressing modes. */
6a9adeca 3877 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->got17m4,
48d502e1
BS
3878 0,
3879 odd,
3880 16,
6a9adeca
BS
3881 gpinfop->g.got17m4,
3882 gpinfop->g.fd17m4,
48d502e1
BS
3883 limit,
3884 (bfd_vma)1 << (18-1));
6a9adeca
BS
3885 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->gothilo,
3886 gpinfop->got17m4.min,
48d502e1 3887 odd,
6a9adeca
BS
3888 gpinfop->got17m4.max,
3889 gpinfop->g.gothilo,
3890 gpinfop->g.fdhilo,
3891 gpinfop->g.fdplt - gpinfop->got17m4.fdplt,
48d502e1
BS
3892 (bfd_vma)1 << (32-1));
3893
3894 /* Now assign (most) GOT offsets. */
3895 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_got_entries,
6a9adeca 3896 gpinfop);
48d502e1 3897
6a9adeca
BS
3898 bfinfdpic_got_section (info)->size = gpinfop->gothilo.max
3899 - gpinfop->gothilo.min
48d502e1
BS
3900 /* If an odd word is the last word of the GOT, we don't need this
3901 word to be part of the GOT. */
6a9adeca 3902 - (odd + 4 == gpinfop->gothilo.max ? 4 : 0);
48d502e1
BS
3903 if (bfinfdpic_got_section (info)->size == 0)
3904 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3905 else if (bfinfdpic_got_section (info)->size == 12
3906 && ! elf_hash_table (info)->dynamic_sections_created)
3907 {
3908 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3909 bfinfdpic_got_section (info)->size = 0;
3910 }
3911 else
3912 {
3913 bfinfdpic_got_section (info)->contents =
3914 (bfd_byte *) bfd_zalloc (dynobj,
3915 bfinfdpic_got_section (info)->size);
3916 if (bfinfdpic_got_section (info)->contents == NULL)
3917 return FALSE;
3918 }
3919
3920 if (elf_hash_table (info)->dynamic_sections_created)
3921 /* Subtract the number of lzplt entries, since those will generate
3922 relocations in the pltrel section. */
3923 bfinfdpic_gotrel_section (info)->size =
6a9adeca 3924 (gpinfop->g.relocs - gpinfop->g.lzplt / LZPLT_NORMAL_SIZE)
48d502e1
BS
3925 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3926 else
6a9adeca 3927 BFD_ASSERT (gpinfop->g.relocs == 0);
48d502e1
BS
3928 if (bfinfdpic_gotrel_section (info)->size == 0)
3929 bfinfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
3930 else
3931 {
3932 bfinfdpic_gotrel_section (info)->contents =
3933 (bfd_byte *) bfd_zalloc (dynobj,
3934 bfinfdpic_gotrel_section (info)->size);
3935 if (bfinfdpic_gotrel_section (info)->contents == NULL)
3936 return FALSE;
3937 }
3938
6a9adeca 3939 bfinfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
48d502e1
BS
3940 if (bfinfdpic_gotfixup_section (info)->size == 0)
3941 bfinfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
3942 else
3943 {
3944 bfinfdpic_gotfixup_section (info)->contents =
3945 (bfd_byte *) bfd_zalloc (dynobj,
3946 bfinfdpic_gotfixup_section (info)->size);
3947 if (bfinfdpic_gotfixup_section (info)->contents == NULL)
3948 return FALSE;
3949 }
3950
3951 if (elf_hash_table (info)->dynamic_sections_created)
d3e32c2e
JZ
3952 bfinfdpic_pltrel_section (info)->size =
3953 gpinfop->g.lzplt / LZPLT_NORMAL_SIZE * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3954 if (bfinfdpic_pltrel_section (info)->size == 0)
3955 bfinfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
3956 else
48d502e1 3957 {
d3e32c2e
JZ
3958 bfinfdpic_pltrel_section (info)->contents =
3959 (bfd_byte *) bfd_zalloc (dynobj,
3960 bfinfdpic_pltrel_section (info)->size);
3961 if (bfinfdpic_pltrel_section (info)->contents == NULL)
3962 return FALSE;
48d502e1
BS
3963 }
3964
3965 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
3966 such that there's room for the additional instruction needed to
3967 call the resolver. Since _bfinfdpic_assign_got_entries didn't
3968 account for them, our block size is 4 bytes smaller than the real
3969 block size. */
3970 if (elf_hash_table (info)->dynamic_sections_created)
3971 {
6a9adeca
BS
3972 bfinfdpic_plt_section (info)->size = gpinfop->g.lzplt
3973 + ((gpinfop->g.lzplt + (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) - LZPLT_NORMAL_SIZE)
48d502e1
BS
3974 / (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) * LZPLT_RESOLVER_EXTRA);
3975 }
3976
3977 /* Reset it, such that _bfinfdpic_assign_plt_entries() can use it to
3978 actually assign lazy PLT entries addresses. */
6a9adeca 3979 gpinfop->g.lzplt = 0;
48d502e1
BS
3980
3981 /* Save information that we're going to need to generate GOT and PLT
3982 entries. */
6a9adeca 3983 bfinfdpic_got_initial_offset (info) = -gpinfop->gothilo.min;
48d502e1
BS
3984
3985 if (get_elf_backend_data (output_bfd)->want_got_sym)
3986 elf_hash_table (info)->hgot->root.u.def.value
6a9adeca 3987 = bfinfdpic_got_initial_offset (info);
48d502e1
BS
3988
3989 if (elf_hash_table (info)->dynamic_sections_created)
3990 bfinfdpic_plt_initial_offset (info) =
3991 bfinfdpic_plt_section (info)->size;
3992
3993 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_plt_entries,
6a9adeca 3994 gpinfop);
48d502e1
BS
3995
3996 /* Allocate the PLT section contents only after
3997 _bfinfdpic_assign_plt_entries has a chance to add the size of the
3998 non-lazy PLT entries. */
d3e32c2e
JZ
3999 if (bfinfdpic_plt_section (info)->size == 0)
4000 bfinfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
4001 else
48d502e1 4002 {
d3e32c2e
JZ
4003 bfinfdpic_plt_section (info)->contents =
4004 (bfd_byte *) bfd_zalloc (dynobj,
4005 bfinfdpic_plt_section (info)->size);
4006 if (bfinfdpic_plt_section (info)->contents == NULL)
4007 return FALSE;
48d502e1
BS
4008 }
4009
6a9adeca
BS
4010 return TRUE;
4011}
4012
4013/* Set the sizes of the dynamic sections. */
4014
4015static bfd_boolean
4016elf32_bfinfdpic_size_dynamic_sections (bfd *output_bfd,
4017 struct bfd_link_info *info)
4018{
4019 struct elf_link_hash_table *htab;
4020 bfd *dynobj;
4021 asection *s;
4022 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4023
4024 htab = elf_hash_table (info);
4025 dynobj = htab->dynobj;
4026 BFD_ASSERT (dynobj != NULL);
4027
4028 if (htab->dynamic_sections_created)
4029 {
4030 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 4031 if (bfd_link_executable (info) && !info->nointerp)
6a9adeca 4032 {
3d4d4302 4033 s = bfd_get_linker_section (dynobj, ".interp");
6a9adeca
BS
4034 BFD_ASSERT (s != NULL);
4035 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4036 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
4037 }
4038 }
4039
4040 memset (&gpinfo, 0, sizeof (gpinfo));
4041 gpinfo.g.info = info;
4042
4043 for (;;)
4044 {
4045 htab_t relocs = bfinfdpic_relocs_info (info);
4046
4047 htab_traverse (relocs, _bfinfdpic_resolve_final_relocs_info, &relocs);
4048
4049 if (relocs == bfinfdpic_relocs_info (info))
4050 break;
4051 }
4052
4053 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_count_got_plt_entries,
4054 &gpinfo.g);
4055
4056 /* Allocate space to save the summary information, we're going to
4057 use it if we're doing relaxations. */
4058 bfinfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
4059
4060 if (!_bfinfdpic_size_got_plt (output_bfd, &gpinfo))
4061 return FALSE;
4062
48d502e1
BS
4063 if (elf_hash_table (info)->dynamic_sections_created)
4064 {
4065 if (bfinfdpic_got_section (info)->size)
4066 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
4067 return FALSE;
4068
4069 if (bfinfdpic_pltrel_section (info)->size)
4070 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
4071 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
4072 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
4073 return FALSE;
4074
4075 if (bfinfdpic_gotrel_section (info)->size)
4076 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
4077 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
4078 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
4079 sizeof (Elf32_External_Rel)))
4080 return FALSE;
4081 }
4082
3d4d4302 4083 s = bfd_get_linker_section (dynobj, ".dynbss");
153d38f6
JZ
4084 if (s && s->size == 0)
4085 s->flags |= SEC_EXCLUDE;
4086
3d4d4302 4087 s = bfd_get_linker_section (dynobj, ".rela.bss");
153d38f6
JZ
4088 if (s && s->size == 0)
4089 s->flags |= SEC_EXCLUDE;
4090
48d502e1
BS
4091 return TRUE;
4092}
4093
4094static bfd_boolean
4095elf32_bfinfdpic_always_size_sections (bfd *output_bfd,
4096 struct bfd_link_info *info)
4097{
0e1862bb 4098 if (!bfd_link_relocatable (info)
04c3a755
NS
4099 && !bfd_elf_stack_segment_size (output_bfd, info,
4100 "__stacksize", DEFAULT_STACK_SIZE))
4101 return FALSE;
48d502e1
BS
4102
4103 return TRUE;
4104}
4105
6a9adeca
BS
4106/* Check whether any of the relocations was optimized away, and
4107 subtract it from the relocation or fixup count. */
4108static bfd_boolean
4109_bfinfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
2c3fc389
NC
4110 struct bfd_link_info *info,
4111 bfd_boolean *changed)
6a9adeca
BS
4112{
4113 Elf_Internal_Shdr *symtab_hdr;
4114 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4115 Elf_Internal_Rela *rel, *erel;
4116
4117 if ((sec->flags & SEC_RELOC) == 0
4118 || sec->reloc_count == 0)
4119 return TRUE;
4120
4121 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4122 sym_hashes = elf_sym_hashes (abfd);
4123 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
4124 if (!elf_bad_symtab (abfd))
4125 sym_hashes_end -= symtab_hdr->sh_info;
4126
4127 rel = elf_section_data (sec)->relocs;
4128
4129 /* Now examine each relocation. */
4130 for (erel = rel + sec->reloc_count; rel < erel; rel++)
4131 {
4132 struct elf_link_hash_entry *h;
4133 unsigned long r_symndx;
4134 struct bfinfdpic_relocs_info *picrel;
4135 struct _bfinfdpic_dynamic_got_info *dinfo;
4136
4137 if (ELF32_R_TYPE (rel->r_info) != R_BFIN_BYTE4_DATA
4138 && ELF32_R_TYPE (rel->r_info) != R_BFIN_FUNCDESC)
4139 continue;
4140
4141 if (_bfd_elf_section_offset (sec->output_section->owner,
4142 info, sec, rel->r_offset)
4143 != (bfd_vma)-1)
4144 continue;
4145
4146 r_symndx = ELF32_R_SYM (rel->r_info);
4147 if (r_symndx < symtab_hdr->sh_info)
4148 h = NULL;
4149 else
4150 {
4151 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4152 while (h->root.type == bfd_link_hash_indirect
4153 || h->root.type == bfd_link_hash_warning)
4154 h = (struct elf_link_hash_entry *)h->root.u.i.link;
4155 }
4156
4157 if (h != NULL)
4158 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4159 abfd, h,
4160 rel->r_addend, NO_INSERT);
4161 else
4162 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info (info),
4163 abfd, r_symndx,
4164 rel->r_addend, NO_INSERT);
4165
4166 if (! picrel)
4167 return FALSE;
4168
4169 *changed = TRUE;
4170 dinfo = bfinfdpic_dynamic_got_plt_info (info);
4171
4172 _bfinfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
4173 if (ELF32_R_TYPE (rel->r_info) == R_BFIN_BYTE4_DATA)
4174 picrel->relocs32--;
4175 else /* we know (ELF32_R_TYPE (rel->r_info) == R_BFIN_FUNCDESC) */
4176 picrel->relocsfd--;
4177 _bfinfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
4178 }
4179
4180 return TRUE;
4181}
4182
4183static bfd_boolean
4184bfinfdpic_elf_discard_info (bfd *ibfd,
4185 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
4186 struct bfd_link_info *info)
4187{
4188 bfd_boolean changed = FALSE;
4189 asection *s;
4190 bfd *obfd = NULL;
4191
4192 /* Account for relaxation of .eh_frame section. */
4193 for (s = ibfd->sections; s; s = s->next)
dbaa2011 4194 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
6a9adeca
BS
4195 {
4196 if (!_bfinfdpic_check_discarded_relocs (ibfd, s, info, &changed))
4197 return FALSE;
4198 obfd = s->output_section->owner;
4199 }
4200
4201 if (changed)
4202 {
4203 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4204
4205 memset (&gpinfo, 0, sizeof (gpinfo));
4206 memcpy (&gpinfo.g, bfinfdpic_dynamic_got_plt_info (info),
4207 sizeof (gpinfo.g));
4208
4209 /* Clear GOT and PLT assignments. */
4210 htab_traverse (bfinfdpic_relocs_info (info),
4211 _bfinfdpic_reset_got_plt_entries,
4212 NULL);
4213
4214 if (!_bfinfdpic_size_got_plt (obfd, &gpinfo))
4215 return FALSE;
4216 }
4217
4218 return TRUE;
4219}
4220
48d502e1
BS
4221static bfd_boolean
4222elf32_bfinfdpic_finish_dynamic_sections (bfd *output_bfd,
4223 struct bfd_link_info *info)
4224{
4225 bfd *dynobj;
4226 asection *sdyn;
4227
4228 dynobj = elf_hash_table (info)->dynobj;
4229
4230 if (bfinfdpic_got_section (info))
4231 {
4232 BFD_ASSERT (bfinfdpic_gotrel_section (info)->size
ed3056eb
NC
4233 /* PR 17334: It appears that the GOT section can end up
4234 being bigger than the number of relocs. Presumably
4235 because some relocs have been deleted. A test case has
4236 yet to be generated for verify this, but in the meantime
4237 the test below has been changed from == to >= so that
4238 applications can continue to be built. */
4239 >= (bfinfdpic_gotrel_section (info)->reloc_count
48d502e1
BS
4240 * sizeof (Elf32_External_Rel)));
4241
4242 if (bfinfdpic_gotfixup_section (info))
4243 {
4244 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
4245 bfd_vma got_value = hgot->root.u.def.value
4246 + hgot->root.u.def.section->output_section->vma
4247 + hgot->root.u.def.section->output_offset;
4248
4249 _bfinfdpic_add_rofixup (output_bfd, bfinfdpic_gotfixup_section (info),
4250 got_value, 0);
4251
4252 if (bfinfdpic_gotfixup_section (info)->size
4253 != (bfinfdpic_gotfixup_section (info)->reloc_count * 4))
0f64bb02 4254 {
4eca0228 4255 _bfd_error_handler
48d502e1 4256 ("LINKER BUG: .rofixup section size mismatch");
0f64bb02
CM
4257 return FALSE;
4258 }
4259 }
4260 }
48d502e1
BS
4261 if (elf_hash_table (info)->dynamic_sections_created)
4262 {
4263 BFD_ASSERT (bfinfdpic_pltrel_section (info)->size
4264 == (bfinfdpic_pltrel_section (info)->reloc_count
4265 * sizeof (Elf32_External_Rel)));
4266 }
4267
3d4d4302 4268 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
48d502e1
BS
4269
4270 if (elf_hash_table (info)->dynamic_sections_created)
4271 {
4272 Elf32_External_Dyn * dyncon;
4273 Elf32_External_Dyn * dynconend;
4274
4275 BFD_ASSERT (sdyn != NULL);
4276
4277 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4278 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4279
4280 for (; dyncon < dynconend; dyncon++)
4281 {
4282 Elf_Internal_Dyn dyn;
4283
4284 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4285
4286 switch (dyn.d_tag)
4287 {
4288 default:
4289 break;
4290
4291 case DT_PLTGOT:
4292 dyn.d_un.d_ptr = bfinfdpic_got_section (info)->output_section->vma
4293 + bfinfdpic_got_section (info)->output_offset
4294 + bfinfdpic_got_initial_offset (info);
4295 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4296 break;
4297
4298 case DT_JMPREL:
4299 dyn.d_un.d_ptr = bfinfdpic_pltrel_section (info)
4300 ->output_section->vma
4301 + bfinfdpic_pltrel_section (info)->output_offset;
4302 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4303 break;
4304
4305 case DT_PLTRELSZ:
4306 dyn.d_un.d_val = bfinfdpic_pltrel_section (info)->size;
4307 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4308 break;
4309 }
4310 }
4311 }
4312
4313 return TRUE;
4314}
4315
4316/* Adjust a symbol defined by a dynamic object and referenced by a
4317 regular object. */
4318
4319static bfd_boolean
2c3fc389
NC
4320elf32_bfinfdpic_adjust_dynamic_symbol (struct bfd_link_info *info,
4321 struct elf_link_hash_entry *h)
48d502e1
BS
4322{
4323 bfd * dynobj;
4324
4325 dynobj = elf_hash_table (info)->dynobj;
4326
4327 /* Make sure we know what is going on here. */
4328 BFD_ASSERT (dynobj != NULL
60d67dc8 4329 && (h->is_weakalias
48d502e1
BS
4330 || (h->def_dynamic
4331 && h->ref_regular
4332 && !h->def_regular)));
4333
4334 /* If this is a weak symbol, and there is a real definition, the
4335 processor independent code will have arranged for us to see the
4336 real definition first, and we can just use the same value. */
60d67dc8 4337 if (h->is_weakalias)
48d502e1 4338 {
60d67dc8
AM
4339 struct elf_link_hash_entry *def = weakdef (h);
4340 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
4341 h->root.u.def.section = def->root.u.def.section;
4342 h->root.u.def.value = def->root.u.def.value;
48d502e1 4343 }
0f64bb02
CM
4344
4345 return TRUE;
4346}
4347
48d502e1
BS
4348/* Perform any actions needed for dynamic symbols. */
4349
4350static bfd_boolean
4351elf32_bfinfdpic_finish_dynamic_symbol
4352(bfd *output_bfd ATTRIBUTE_UNUSED,
4353 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4354 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
4355 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
0f64bb02 4356{
48d502e1
BS
4357 return TRUE;
4358}
0f64bb02 4359
48d502e1
BS
4360/* Decide whether to attempt to turn absptr or lsda encodings in
4361 shared libraries into pcrel within the given input section. */
0f64bb02 4362
48d502e1
BS
4363static bfd_boolean
4364bfinfdpic_elf_use_relative_eh_frame
4365(bfd *input_bfd ATTRIBUTE_UNUSED,
4366 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4367 asection *eh_frame_section ATTRIBUTE_UNUSED)
4368{
4369 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
4370 return FALSE;
4371}
0f64bb02 4372
48d502e1 4373/* Adjust the contents of an eh_frame_hdr section before they're output. */
0f64bb02 4374
48d502e1
BS
4375static bfd_byte
4376bfinfdpic_elf_encode_eh_address (bfd *abfd,
4377 struct bfd_link_info *info,
4378 asection *osec, bfd_vma offset,
4379 asection *loc_sec, bfd_vma loc_offset,
4380 bfd_vma *encoded)
4381{
4382 struct elf_link_hash_entry *h;
0f64bb02 4383
48d502e1
BS
4384 h = elf_hash_table (info)->hgot;
4385 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
4386
4387 if (! h || (_bfinfdpic_osec_to_segment (abfd, osec)
4388 == _bfinfdpic_osec_to_segment (abfd, loc_sec->output_section)))
4389 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
4390 loc_sec, loc_offset, encoded);
4391
4392 BFD_ASSERT (_bfinfdpic_osec_to_segment (abfd, osec)
4393 == (_bfinfdpic_osec_to_segment
4394 (abfd, h->root.u.def.section->output_section)));
4395
4396 *encoded = osec->vma + offset
4397 - (h->root.u.def.value
4398 + h->root.u.def.section->output_section->vma
4399 + h->root.u.def.section->output_offset);
4400
4401 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
0f64bb02
CM
4402}
4403
4404
48d502e1
BS
4405
4406/* Look through the relocs for a section during the first phase.
4407
4408 Besides handling virtual table relocs for gc, we have to deal with
4409 all sorts of PIC-related relocations. We describe below the
4410 general plan on how to handle such relocations, even though we only
4411 collect information at this point, storing them in hash tables for
4412 perusal of later passes.
4413
4414 32 relocations are propagated to the linker output when creating
4415 position-independent output. LO16 and HI16 relocations are not
4416 supposed to be encountered in this case.
4417
4418 LABEL16 should always be resolvable by the linker, since it's only
4419 used by branches.
4420
4421 LABEL24, on the other hand, is used by calls. If it turns out that
4422 the target of a call is a dynamic symbol, a PLT entry must be
4423 created for it, which triggers the creation of a private function
4424 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
4425
4426 GPREL relocations require the referenced symbol to be in the same
4427 segment as _gp, but this can only be checked later.
4428
4429 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
4430 exist. LABEL24 might as well, since it may require a PLT entry,
4431 that will require a got.
4432
4433 Non-FUNCDESC GOT relocations require a GOT entry to be created
4434 regardless of whether the symbol is dynamic. However, since a
4435 global symbol that turns out to not be exported may have the same
4436 address of a non-dynamic symbol, we don't assign GOT entries at
4437 this point, such that we can share them in this case. A relocation
4438 for the GOT entry always has to be created, be it to offset a
4439 private symbol by the section load address, be it to get the symbol
4440 resolved dynamically.
4441
4442 FUNCDESC GOT relocations require a GOT entry to be created, and
4443 handled as if a FUNCDESC relocation was applied to the GOT entry in
4444 an object file.
4445
4446 FUNCDESC relocations referencing a symbol that turns out to NOT be
4447 dynamic cause a private function descriptor to be created. The
4448 FUNCDESC relocation then decays to a 32 relocation that points at
4449 the private descriptor. If the symbol is dynamic, the FUNCDESC
4450 relocation is propagated to the linker output, such that the
4451 dynamic linker creates the canonical descriptor, pointing to the
4452 dynamically-resolved definition of the function.
4453
4454 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
4455 symbols that are assigned to the same segment as the GOT, but we
4456 can only check this later, after we know the complete set of
4457 symbols defined and/or exported.
4458
4459 FUNCDESC GOTOFF relocations require a function descriptor to be
4460 created and, unless lazy binding is disabled or the symbol is not
4461 dynamic, a lazy PLT entry. Since we can't tell at this point
4462 whether a symbol is going to be dynamic, we have to decide later
4463 whether to create a lazy PLT entry or bind the descriptor directly
4464 to the private function.
4465
4466 FUNCDESC_VALUE relocations are not supposed to be present in object
4467 files, but they may very well be simply propagated to the linker
4468 output, since they have no side effect.
4469
4470
4471 A function descriptor always requires a FUNCDESC_VALUE relocation.
4472 Whether it's in .plt.rel or not depends on whether lazy binding is
4473 enabled and on whether the referenced symbol is dynamic.
4474
4475 The existence of a lazy PLT requires the resolverStub lazy PLT
4476 entry to be present.
4477
4478
4479 As for assignment of GOT, PLT and lazy PLT entries, and private
4480 descriptors, we might do them all sequentially, but we can do
4481 better than that. For example, we can place GOT entries and
4482 private function descriptors referenced using 12-bit operands
4483 closer to the PIC register value, such that these relocations don't
4484 overflow. Those that are only referenced with LO16 relocations
4485 could come next, but we may as well place PLT-required function
4486 descriptors in the 12-bit range to make them shorter. Symbols
4487 referenced with LO16/HI16 may come next, but we may place
4488 additional function descriptors in the 16-bit range if we can
4489 reliably tell that we've already placed entries that are ever
4490 referenced with only LO16. PLT entries are therefore generated as
4491 small as possible, while not introducing relocation overflows in
4492 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
4493 generated before or after PLT entries, but not intermingled with
4494 them, such that we can have more lazy PLT entries in range for a
4495 branch to the resolverStub. The resolverStub should be emitted at
4496 the most distant location from the first lazy PLT entry such that
4497 it's still in range for a branch, or closer, if there isn't a need
4498 for so many lazy PLT entries. Additional lazy PLT entries may be
4499 emitted after the resolverStub, as long as branches are still in
4500 range. If the branch goes out of range, longer lazy PLT entries
4501 are emitted.
4502
4503 We could further optimize PLT and lazy PLT entries by giving them
4504 priority in assignment to closer-to-gr17 locations depending on the
4505 number of occurrences of references to them (assuming a function
4506 that's called more often is more important for performance, so its
4507 PLT entry should be faster), or taking hints from the compiler.
4508 Given infinite time and money... :-) */
0f64bb02
CM
4509
4510static bfd_boolean
48d502e1
BS
4511bfinfdpic_check_relocs (bfd *abfd, struct bfd_link_info *info,
4512 asection *sec, const Elf_Internal_Rela *relocs)
0f64bb02
CM
4513{
4514 Elf_Internal_Shdr *symtab_hdr;
5582a088 4515 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS
4516 const Elf_Internal_Rela *rel;
4517 const Elf_Internal_Rela *rel_end;
0f64bb02 4518 bfd *dynobj;
48d502e1 4519 struct bfinfdpic_relocs_info *picrel;
0f64bb02 4520
0e1862bb 4521 if (bfd_link_relocatable (info))
0f64bb02
CM
4522 return TRUE;
4523
4524 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4525 sym_hashes = elf_sym_hashes (abfd);
0f64bb02 4526
48d502e1
BS
4527 dynobj = elf_hash_table (info)->dynobj;
4528 rel_end = relocs + sec->reloc_count;
4529 for (rel = relocs; rel < rel_end; rel++)
0f64bb02 4530 {
0f64bb02 4531 struct elf_link_hash_entry *h;
48d502e1
BS
4532 unsigned long r_symndx;
4533
4534 r_symndx = ELF32_R_SYM (rel->r_info);
4535 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 4536 h = NULL;
48d502e1 4537 else
07d6d2b8 4538 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
0f64bb02
CM
4539
4540 switch (ELF32_R_TYPE (rel->r_info))
4541 {
48d502e1
BS
4542 case R_BFIN_GOT17M4:
4543 case R_BFIN_GOTHI:
4544 case R_BFIN_GOTLO:
4545 case R_BFIN_FUNCDESC_GOT17M4:
4546 case R_BFIN_FUNCDESC_GOTHI:
4547 case R_BFIN_FUNCDESC_GOTLO:
4548 case R_BFIN_GOTOFF17M4:
4549 case R_BFIN_GOTOFFHI:
4550 case R_BFIN_GOTOFFLO:
4551 case R_BFIN_FUNCDESC_GOTOFF17M4:
4552 case R_BFIN_FUNCDESC_GOTOFFHI:
4553 case R_BFIN_FUNCDESC_GOTOFFLO:
4554 case R_BFIN_FUNCDESC:
4555 case R_BFIN_FUNCDESC_VALUE:
4556 if (! IS_FDPIC (abfd))
4557 goto bad_reloc;
4558 /* Fall through. */
cb88ce9f
BS
4559 case R_BFIN_PCREL24:
4560 case R_BFIN_PCREL24_JUMP_L:
4561 case R_BFIN_BYTE4_DATA:
48d502e1 4562 if (IS_FDPIC (abfd) && ! dynobj)
0f64bb02 4563 {
48d502e1
BS
4564 elf_hash_table (info)->dynobj = dynobj = abfd;
4565 if (! _bfin_create_got_section (abfd, info))
4566 return FALSE;
0f64bb02 4567 }
48d502e1 4568 if (! IS_FDPIC (abfd))
0f64bb02 4569 {
48d502e1
BS
4570 picrel = NULL;
4571 break;
4572 }
4573 if (h != NULL)
4574 {
4575 if (h->dynindx == -1)
4576 switch (ELF_ST_VISIBILITY (h->other))
4577 {
4578 case STV_INTERNAL:
4579 case STV_HIDDEN:
4580 break;
4581 default:
4582 bfd_elf_link_record_dynamic_symbol (info, h);
4583 break;
4584 }
4585 picrel
4586 = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4587 abfd, h,
4588 rel->r_addend, INSERT);
0f64bb02 4589 }
48d502e1
BS
4590 else
4591 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
4592 (info), abfd, r_symndx,
4593 rel->r_addend, INSERT);
4594 if (! picrel)
4595 return FALSE;
0f64bb02 4596 break;
48d502e1 4597
0f64bb02 4598 default:
48d502e1 4599 picrel = NULL;
0f64bb02
CM
4600 break;
4601 }
48d502e1
BS
4602
4603 switch (ELF32_R_TYPE (rel->r_info))
07d6d2b8 4604 {
cb88ce9f
BS
4605 case R_BFIN_PCREL24:
4606 case R_BFIN_PCREL24_JUMP_L:
48d502e1 4607 if (IS_FDPIC (abfd))
2774f1a6 4608 picrel->call++;
48d502e1
BS
4609 break;
4610
4611 case R_BFIN_FUNCDESC_VALUE:
4612 picrel->relocsfdv++;
4613 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4614 picrel->relocs32--;
4615 /* Fall through. */
4616
cb88ce9f 4617 case R_BFIN_BYTE4_DATA:
48d502e1
BS
4618 if (! IS_FDPIC (abfd))
4619 break;
4620
2774f1a6 4621 picrel->sym++;
48d502e1
BS
4622 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4623 picrel->relocs32++;
4624 break;
4625
4626 case R_BFIN_GOT17M4:
2774f1a6 4627 picrel->got17m4++;
48d502e1
BS
4628 break;
4629
4630 case R_BFIN_GOTHI:
4631 case R_BFIN_GOTLO:
2774f1a6 4632 picrel->gothilo++;
48d502e1
BS
4633 break;
4634
4635 case R_BFIN_FUNCDESC_GOT17M4:
2774f1a6 4636 picrel->fdgot17m4++;
48d502e1
BS
4637 break;
4638
4639 case R_BFIN_FUNCDESC_GOTHI:
4640 case R_BFIN_FUNCDESC_GOTLO:
2774f1a6 4641 picrel->fdgothilo++;
48d502e1
BS
4642 break;
4643
4644 case R_BFIN_GOTOFF17M4:
4645 case R_BFIN_GOTOFFHI:
4646 case R_BFIN_GOTOFFLO:
2774f1a6 4647 picrel->gotoff++;
48d502e1
BS
4648 break;
4649
4650 case R_BFIN_FUNCDESC_GOTOFF17M4:
2774f1a6 4651 picrel->fdgoff17m4++;
48d502e1
BS
4652 break;
4653
4654 case R_BFIN_FUNCDESC_GOTOFFHI:
4655 case R_BFIN_FUNCDESC_GOTOFFLO:
2774f1a6 4656 picrel->fdgoffhilo++;
48d502e1
BS
4657 break;
4658
4659 case R_BFIN_FUNCDESC:
2774f1a6 4660 picrel->fd++;
48d502e1
BS
4661 picrel->relocsfd++;
4662 break;
4663
07d6d2b8
AM
4664 /* This relocation describes the C++ object vtable hierarchy.
4665 Reconstruct it for later use during GC. */
4666 case R_BFIN_GNU_VTINHERIT:
4667 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4668 return FALSE;
4669 break;
4670
4671 /* This relocation describes which C++ vtable entries are actually
4672 used. Record for later use during GC. */
4673 case R_BFIN_GNU_VTENTRY:
4674 BFD_ASSERT (h != NULL);
4675 if (h != NULL
4676 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4677 return FALSE;
4678 break;
48d502e1 4679
cb88ce9f
BS
4680 case R_BFIN_HUIMM16:
4681 case R_BFIN_LUIMM16:
4682 case R_BFIN_PCREL12_JUMP_S:
4683 case R_BFIN_PCREL10:
48d502e1
BS
4684 break;
4685
4686 default:
4687 bad_reloc:
4eca0228 4688 _bfd_error_handler
695344c0 4689 /* xgettext:c-format */
0aa13fee 4690 (_("%pB: unsupported relocation type %#x"),
d42c267e 4691 abfd, (int) ELF32_R_TYPE (rel->r_info));
48d502e1 4692 return FALSE;
07d6d2b8 4693 }
0f64bb02
CM
4694 }
4695
4696 return TRUE;
4697}
4698
48d502e1
BS
4699/* Set the right machine number for a Blackfin ELF file. */
4700
4701static bfd_boolean
4702elf32_bfin_object_p (bfd *abfd)
4703{
4704 bfd_default_set_arch_mach (abfd, bfd_arch_bfin, 0);
4705 return (((elf_elfheader (abfd)->e_flags & EF_BFIN_FDPIC) != 0)
4706 == (IS_FDPIC (abfd)));
4707}
0f64bb02 4708
0f64bb02 4709static bfd_boolean
48d502e1 4710elf32_bfin_set_private_flags (bfd * abfd, flagword flags)
0f64bb02 4711{
48d502e1
BS
4712 elf_elfheader (abfd)->e_flags = flags;
4713 elf_flags_init (abfd) = TRUE;
4714 return TRUE;
4715}
0f64bb02 4716
0f64bb02
CM
4717/* Display the flags field. */
4718static bfd_boolean
2c3fc389 4719elf32_bfin_print_private_bfd_data (bfd * abfd, void * ptr)
0f64bb02
CM
4720{
4721 FILE *file = (FILE *) ptr;
48d502e1 4722 flagword flags;
0f64bb02
CM
4723
4724 BFD_ASSERT (abfd != NULL && ptr != NULL);
4725
4726 /* Print normal ELF private data. */
4727 _bfd_elf_print_private_bfd_data (abfd, ptr);
4728
48d502e1 4729 flags = elf_elfheader (abfd)->e_flags;
0f64bb02
CM
4730
4731 /* xgettext:c-format */
4732 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
4733
48d502e1
BS
4734 if (flags & EF_BFIN_PIC)
4735 fprintf (file, " -fpic");
4736
4737 if (flags & EF_BFIN_FDPIC)
4738 fprintf (file, " -mfdpic");
4739
0f64bb02
CM
4740 fputc ('\n', file);
4741
4742 return TRUE;
4743}
4744
48d502e1
BS
4745/* Merge backend specific data from an object file to the output
4746 object file when linking. */
4747
4748static bfd_boolean
50e03d47 4749elf32_bfin_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
48d502e1 4750{
50e03d47 4751 bfd *obfd = info->output_bfd;
7a84e3da 4752 flagword old_flags, new_flags;
48d502e1
BS
4753 bfd_boolean error = FALSE;
4754
4755 new_flags = elf_elfheader (ibfd)->e_flags;
4756 old_flags = elf_elfheader (obfd)->e_flags;
4757
4758 if (new_flags & EF_BFIN_FDPIC)
4759 new_flags &= ~EF_BFIN_PIC;
4760
c7e2358a
AM
4761#ifndef DEBUG
4762 if (0)
4763#endif
4eca0228 4764 _bfd_error_handler
871b3ab2 4765 ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %pB",
dae82561 4766 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no", ibfd);
48d502e1
BS
4767
4768 if (!elf_flags_init (obfd)) /* First call, no flags set. */
4769 {
4770 elf_flags_init (obfd) = TRUE;
7a84e3da 4771 elf_elfheader (obfd)->e_flags = new_flags;
48d502e1
BS
4772 }
4773
7a84e3da 4774 if (((new_flags & EF_BFIN_FDPIC) == 0) != (! IS_FDPIC (obfd)))
48d502e1
BS
4775 {
4776 error = TRUE;
4777 if (IS_FDPIC (obfd))
4eca0228 4778 _bfd_error_handler
871b3ab2 4779 (_("%pB: cannot link non-fdpic object file into fdpic executable"),
dae82561 4780 ibfd);
48d502e1 4781 else
4eca0228 4782 _bfd_error_handler
871b3ab2 4783 (_("%pB: cannot link fdpic object file into non-fdpic executable"),
dae82561 4784 ibfd);
48d502e1
BS
4785 }
4786
4787 if (error)
4788 bfd_set_error (bfd_error_bad_value);
4789
4790 return !error;
4791}
4792\f
0f64bb02
CM
4793/* bfin ELF linker hash entry. */
4794
4795struct bfin_link_hash_entry
4796{
4797 struct elf_link_hash_entry root;
4798
4799 /* Number of PC relative relocs copied for this symbol. */
4800 struct bfin_pcrel_relocs_copied *pcrel_relocs_copied;
4801};
4802
4803/* bfin ELF linker hash table. */
4804
4805struct bfin_link_hash_table
4806{
4807 struct elf_link_hash_table root;
4808
87d72d41
AM
4809 /* Small local sym cache. */
4810 struct sym_cache sym_cache;
0f64bb02
CM
4811};
4812
4813#define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent))
4814
4815static struct bfd_hash_entry *
4816bfin_link_hash_newfunc (struct bfd_hash_entry *entry,
48d502e1 4817 struct bfd_hash_table *table, const char *string)
0f64bb02
CM
4818{
4819 struct bfd_hash_entry *ret = entry;
4820
4821 /* Allocate the structure if it has not already been allocated by a
4822 subclass. */
4823 if (ret == NULL)
4824 ret = bfd_hash_allocate (table, sizeof (struct bfin_link_hash_entry));
4825 if (ret == NULL)
4826 return ret;
4827
4828 /* Call the allocation method of the superclass. */
4829 ret = _bfd_elf_link_hash_newfunc (ret, table, string);
4830 if (ret != NULL)
4831 bfin_hash_entry (ret)->pcrel_relocs_copied = NULL;
4832
4833 return ret;
4834}
4835
4836/* Create an bfin ELF linker hash table. */
4837
4838static struct bfd_link_hash_table *
4839bfin_link_hash_table_create (bfd * abfd)
4840{
4841 struct bfin_link_hash_table *ret;
4842 bfd_size_type amt = sizeof (struct bfin_link_hash_table);
4843
22cdc249 4844 ret = bfd_zmalloc (amt);
48d502e1 4845 if (ret == NULL)
0f64bb02
CM
4846 return NULL;
4847
4848 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
66eb6687 4849 bfin_link_hash_newfunc,
4dfe6ac6
NC
4850 sizeof (struct elf_link_hash_entry),
4851 BFIN_ELF_DATA))
0f64bb02
CM
4852 {
4853 free (ret);
4854 return NULL;
4855 }
4856
87d72d41 4857 ret->sym_cache.abfd = NULL;
0f64bb02
CM
4858
4859 return &ret->root.root;
4860}
4861
4862/* The size in bytes of an entry in the procedure linkage table. */
4863
4864/* Finish up the dynamic sections. */
4865
4866static bfd_boolean
4867bfin_finish_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 4868 struct bfd_link_info *info)
0f64bb02
CM
4869{
4870 bfd *dynobj;
4871 asection *sdyn;
4872
4873 dynobj = elf_hash_table (info)->dynobj;
4874
3d4d4302 4875 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
0f64bb02
CM
4876
4877 if (elf_hash_table (info)->dynamic_sections_created)
4878 {
4879 Elf32_External_Dyn *dyncon, *dynconend;
4880
4881 BFD_ASSERT (sdyn != NULL);
4882
4883 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4884 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4885 for (; dyncon < dynconend; dyncon++)
4886 {
4887 Elf_Internal_Dyn dyn;
4888
4889 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4890
4891 }
4892
4893 }
4894 return TRUE;
4895}
4896
4897/* Finish up dynamic symbol handling. We set the contents of various
4898 dynamic sections here. */
4899
4900static bfd_boolean
4901bfin_finish_dynamic_symbol (bfd * output_bfd,
2c3fc389
NC
4902 struct bfd_link_info *info,
4903 struct elf_link_hash_entry *h,
4904 Elf_Internal_Sym * sym)
0f64bb02 4905{
0f64bb02
CM
4906 if (h->got.offset != (bfd_vma) - 1)
4907 {
4908 asection *sgot;
4909 asection *srela;
4910 Elf_Internal_Rela rela;
4911 bfd_byte *loc;
4912
4913 /* This symbol has an entry in the global offset table.
07d6d2b8 4914 Set it up. */
0f64bb02 4915
ce558b89
AM
4916 sgot = elf_hash_table (info)->sgot;
4917 srela = elf_hash_table (info)->srelgot;
0f64bb02
CM
4918 BFD_ASSERT (sgot != NULL && srela != NULL);
4919
4920 rela.r_offset = (sgot->output_section->vma
4921 + sgot->output_offset
4922 + (h->got.offset & ~(bfd_vma) 1));
4923
4924 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM
4925 locally, we just want to emit a RELATIVE reloc. Likewise if
4926 the symbol was forced to be local because of a version file.
4927 The entry in the global offset table will already have been
4928 initialized in the relocate_section function. */
0e1862bb 4929 if (bfd_link_pic (info)
0f64bb02
CM
4930 && (info->symbolic
4931 || h->dynindx == -1 || h->forced_local) && h->def_regular)
4932 {
4eca0228
AM
4933 _bfd_error_handler (_("*** check this relocation %s"),
4934 __FUNCTION__);
cb88ce9f 4935 rela.r_info = ELF32_R_INFO (0, R_BFIN_PCREL24);
0f64bb02
CM
4936 rela.r_addend = bfd_get_signed_32 (output_bfd,
4937 (sgot->contents
4938 +
4939 (h->got.
4940 offset & ~(bfd_vma) 1)));
4941 }
4942 else
4943 {
4944 bfd_put_32 (output_bfd, (bfd_vma) 0,
4945 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
cb88ce9f 4946 rela.r_info = ELF32_R_INFO (h->dynindx, R_BFIN_GOT);
0f64bb02
CM
4947 rela.r_addend = 0;
4948 }
4949
4950 loc = srela->contents;
4951 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
4952 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4953 }
4954
4955 if (h->needs_copy)
4956 {
4957 BFD_ASSERT (0);
4958 }
4959 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
5592d7ec 4960 if (strcmp (h->root.root.string, "__DYNAMIC") == 0
22edb2f1 4961 || h == elf_hash_table (info)->hgot)
0f64bb02
CM
4962 sym->st_shndx = SHN_ABS;
4963
4964 return TRUE;
4965}
4966
4967/* Adjust a symbol defined by a dynamic object and referenced by a
4968 regular object. The current definition is in some section of the
4969 dynamic object, but we're not including those sections. We have to
4970 change the definition to something the rest of the link can
4971 understand. */
4972
4973static bfd_boolean
4974bfin_adjust_dynamic_symbol (struct bfd_link_info *info,
2c3fc389 4975 struct elf_link_hash_entry *h)
0f64bb02
CM
4976{
4977 bfd *dynobj;
4978 asection *s;
4979 unsigned int power_of_two;
4980
4981 dynobj = elf_hash_table (info)->dynobj;
4982
4983 /* Make sure we know what is going on here. */
4984 BFD_ASSERT (dynobj != NULL
4985 && (h->needs_plt
60d67dc8 4986 || h->is_weakalias
0f64bb02
CM
4987 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
4988
4989 /* If this is a function, put it in the procedure linkage table. We
4990 will fill in the contents of the procedure linkage table later,
4991 when we know the address of the .got section. */
4992 if (h->type == STT_FUNC || h->needs_plt)
4993 {
4994 BFD_ASSERT(0);
4995 }
4996
4997 /* If this is a weak symbol, and there is a real definition, the
4998 processor independent code will have arranged for us to see the
4999 real definition first, and we can just use the same value. */
60d67dc8 5000 if (h->is_weakalias)
0f64bb02 5001 {
60d67dc8
AM
5002 struct elf_link_hash_entry *def = weakdef (h);
5003 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5004 h->root.u.def.section = def->root.u.def.section;
5005 h->root.u.def.value = def->root.u.def.value;
0f64bb02
CM
5006 return TRUE;
5007 }
5008
5009 /* This is a reference to a symbol defined by a dynamic object which
5010 is not a function. */
5011
5012 /* If we are creating a shared library, we must presume that the
5013 only references to the symbol are via the global offset table.
5014 For such cases we need not do anything here; the relocations will
5015 be handled correctly by relocate_section. */
0e1862bb 5016 if (bfd_link_pic (info))
0f64bb02
CM
5017 return TRUE;
5018
5019 /* We must allocate the symbol in our .dynbss section, which will
5020 become part of the .bss section of the executable. There will be
5021 an entry for this symbol in the .dynsym section. The dynamic
5022 object will contain position independent code, so all references
5023 from the dynamic object to this symbol will go through the global
5024 offset table. The dynamic linker will use the .dynsym entry to
5025 determine the address it must put in the global offset table, so
5026 both the dynamic object and the regular object will refer to the
5027 same memory location for the variable. */
5028
3d4d4302 5029 s = bfd_get_linker_section (dynobj, ".dynbss");
0f64bb02
CM
5030 BFD_ASSERT (s != NULL);
5031
1b857aee
NC
5032#if 0 /* Bfin does not currently have a COPY reloc. */
5033 /* We must generate a R_BFIN_COPY reloc to tell the dynamic linker to
0f64bb02
CM
5034 copy the initial value out of the dynamic object and into the
5035 runtime process image. We need to remember the offset into the
5036 .rela.bss section we are going to use. */
5037 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5038 {
5039 asection *srel;
5040
3d4d4302 5041 srel = bfd_get_linker_section (dynobj, ".rela.bss");
0f64bb02
CM
5042 BFD_ASSERT (srel != NULL);
5043 srel->size += sizeof (Elf32_External_Rela);
5044 h->needs_copy = 1;
5045 }
1b857aee
NC
5046#else
5047 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5048 {
4eca0228 5049 _bfd_error_handler (_("the bfin target does not currently support the generation of copy relocations"));
1b857aee
NC
5050 return FALSE;
5051 }
5052#endif
0f64bb02
CM
5053 /* We need to figure out the alignment required for this symbol. I
5054 have no idea how ELF linkers handle this. */
5055 power_of_two = bfd_log2 (h->size);
5056 if (power_of_two > 3)
5057 power_of_two = 3;
5058
5059 /* Apply the required alignment. */
5060 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
5061 if (power_of_two > bfd_get_section_alignment (dynobj, s))
5062 {
5063 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
5064 return FALSE;
5065 }
5066
5067 /* Define the symbol as being at this point in the section. */
5068 h->root.u.def.section = s;
5069 h->root.u.def.value = s->size;
5070
5071 /* Increment the section size to make room for the symbol. */
5072 s->size += h->size;
5073
5074 return TRUE;
5075}
5076
5077/* The bfin linker needs to keep track of the number of relocs that it
5078 decides to copy in check_relocs for each symbol. This is so that it
5079 can discard PC relative relocs if it doesn't need them when linking
5080 with -Bsymbolic. We store the information in a field extending the
5081 regular ELF linker hash table. */
5082
5083/* This structure keeps track of the number of PC relative relocs we have
5084 copied for a given symbol. */
5085
5086struct bfin_pcrel_relocs_copied
5087{
5088 /* Next section. */
5089 struct bfin_pcrel_relocs_copied *next;
5090 /* A section in dynobj. */
5091 asection *section;
5092 /* Number of relocs copied in this section. */
5093 bfd_size_type count;
5094};
5095
5096/* This function is called via elf_link_hash_traverse if we are
5097 creating a shared object. In the -Bsymbolic case it discards the
5098 space allocated to copy PC relative relocs against symbols which
5099 are defined in regular objects. For the normal shared case, it
5100 discards space for pc-relative relocs that have become local due to
5101 symbol visibility changes. We allocated space for them in the
5102 check_relocs routine, but we won't fill them in in the
5103 relocate_section routine.
5104
5105 We also check whether any of the remaining relocations apply
5106 against a readonly section, and set the DF_TEXTREL flag in this
5107 case. */
5108
5109static bfd_boolean
2c3fc389 5110bfin_discard_copies (struct elf_link_hash_entry *h, void * inf)
0f64bb02
CM
5111{
5112 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5113 struct bfin_pcrel_relocs_copied *s;
5114
0f64bb02
CM
5115 if (!h->def_regular || (!info->symbolic && !h->forced_local))
5116 {
5117 if ((info->flags & DF_TEXTREL) == 0)
5118 {
5119 /* Look for relocations against read-only sections. */
5120 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5121 s != NULL; s = s->next)
5122 if ((s->section->flags & SEC_READONLY) != 0)
5123 {
5124 info->flags |= DF_TEXTREL;
5125 break;
5126 }
5127 }
5128
5129 return TRUE;
5130 }
5131
5132 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5133 s != NULL; s = s->next)
5134 s->section->size -= s->count * sizeof (Elf32_External_Rela);
5135
5136 return TRUE;
5137}
5138
0f64bb02
CM
5139static bfd_boolean
5140bfin_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 5141 struct bfd_link_info *info)
0f64bb02
CM
5142{
5143 bfd *dynobj;
5144 asection *s;
5145 bfd_boolean relocs;
5146
5147 dynobj = elf_hash_table (info)->dynobj;
5148 BFD_ASSERT (dynobj != NULL);
5149
5150 if (elf_hash_table (info)->dynamic_sections_created)
5151 {
5152 /* Set the contents of the .interp section to the interpreter. */
9d45a7de 5153 if (bfd_link_executable (info) && !info->nointerp)
0f64bb02 5154 {
3d4d4302 5155 s = bfd_get_linker_section (dynobj, ".interp");
0f64bb02
CM
5156 BFD_ASSERT (s != NULL);
5157 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5158 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5159 }
5160 }
5161 else
5162 {
5163 /* We may have created entries in the .rela.got section.
07d6d2b8
AM
5164 However, if we are not creating the dynamic sections, we will
5165 not actually use these entries. Reset the size of .rela.got,
5166 which will cause it to get stripped from the output file
5167 below. */
ce558b89 5168 s = elf_hash_table (info)->srelgot;
0f64bb02
CM
5169 if (s != NULL)
5170 s->size = 0;
5171 }
5172
5173 /* If this is a -Bsymbolic shared link, then we need to discard all
5174 PC relative relocs against symbols defined in a regular object.
5175 For the normal shared case we discard the PC relative relocs
5176 against symbols that have become local due to visibility changes.
5177 We allocated space for them in the check_relocs routine, but we
5178 will not fill them in in the relocate_section routine. */
0e1862bb 5179 if (bfd_link_pic (info))
0f64bb02 5180 elf_link_hash_traverse (elf_hash_table (info),
2c3fc389 5181 bfin_discard_copies, info);
0f64bb02
CM
5182
5183 /* The check_relocs and adjust_dynamic_symbol entry points have
5184 determined the sizes of the various dynamic sections. Allocate
5185 memory for them. */
5186 relocs = FALSE;
5187 for (s = dynobj->sections; s != NULL; s = s->next)
5188 {
5189 const char *name;
5190 bfd_boolean strip;
5191
5192 if ((s->flags & SEC_LINKER_CREATED) == 0)
5193 continue;
5194
5195 /* It's OK to base decisions on the section name, because none
07d6d2b8 5196 of the dynobj section names depend upon the input files. */
0f64bb02
CM
5197 name = bfd_get_section_name (dynobj, s);
5198
5199 strip = FALSE;
5200
0112cd26 5201 if (CONST_STRNEQ (name, ".rela"))
0f64bb02
CM
5202 {
5203 if (s->size == 0)
5204 {
5205 /* If we don't need this section, strip it from the
07d6d2b8
AM
5206 output file. This is mostly to handle .rela.bss and
5207 .rela.plt. We must create both sections in
5208 create_dynamic_sections, because they must be created
5209 before the linker maps input sections to output
5210 sections. The linker does that before
5211 adjust_dynamic_symbol is called, and it is that
5212 function which decides whether anything needs to go
5213 into these sections. */
0f64bb02
CM
5214 strip = TRUE;
5215 }
5216 else
5217 {
5218 relocs = TRUE;
5219
5220 /* We use the reloc_count field as a counter if we need
07d6d2b8 5221 to copy relocs into the output file. */
0f64bb02
CM
5222 s->reloc_count = 0;
5223 }
5224 }
0112cd26 5225 else if (! CONST_STRNEQ (name, ".got"))
0f64bb02
CM
5226 {
5227 /* It's not one of our sections, so don't allocate space. */
5228 continue;
5229 }
5230
5231 if (strip)
5232 {
5233 s->flags |= SEC_EXCLUDE;
5234 continue;
5235 }
5236
5237 /* Allocate memory for the section contents. */
5238 /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
07d6d2b8
AM
5239 Unused entries should be reclaimed before the section's contents
5240 are written out, but at the moment this does not happen. Thus in
5241 order to prevent writing out garbage, we initialise the section's
5242 contents to zero. */
0f64bb02
CM
5243 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
5244 if (s->contents == NULL && s->size != 0)
5245 return FALSE;
5246 }
5247
5248 if (elf_hash_table (info)->dynamic_sections_created)
5249 {
5250 /* Add some entries to the .dynamic section. We fill in the
07d6d2b8
AM
5251 values later, in bfin_finish_dynamic_sections, but we
5252 must add the entries now so that we get the correct size for
5253 the .dynamic section. The DT_DEBUG entry is filled in by the
5254 dynamic linker and used by the debugger. */
0f64bb02
CM
5255#define add_dynamic_entry(TAG, VAL) \
5256 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
5257
0e1862bb 5258 if (!bfd_link_pic (info))
0f64bb02
CM
5259 {
5260 if (!add_dynamic_entry (DT_DEBUG, 0))
5261 return FALSE;
5262 }
5263
5264
5265 if (relocs)
5266 {
5267 if (!add_dynamic_entry (DT_RELA, 0)
5268 || !add_dynamic_entry (DT_RELASZ, 0)
5269 || !add_dynamic_entry (DT_RELAENT,
5270 sizeof (Elf32_External_Rela)))
5271 return FALSE;
5272 }
5273
5274 if ((info->flags & DF_TEXTREL) != 0)
5275 {
5276 if (!add_dynamic_entry (DT_TEXTREL, 0))
5277 return FALSE;
5278 }
5279 }
5280#undef add_dynamic_entry
5281
5282 return TRUE;
5283}
48d502e1 5284\f
0f64bb02
CM
5285/* Given a .data section and a .emreloc in-memory section, store
5286 relocation information into the .emreloc section which can be
5287 used at runtime to relocate the section. This is called by the
5288 linker when the --embedded-relocs switch is used. This is called
5289 after the add_symbols entry point has been called for all the
5290 objects, and before the final_link entry point is called. */
5291
5292bfd_boolean
2c3fc389
NC
5293bfd_bfin_elf32_create_embedded_relocs (bfd *abfd,
5294 struct bfd_link_info *info,
5295 asection *datasec,
5296 asection *relsec,
5297 char **errmsg)
0f64bb02
CM
5298{
5299 Elf_Internal_Shdr *symtab_hdr;
5300 Elf_Internal_Sym *isymbuf = NULL;
5301 Elf_Internal_Rela *internal_relocs = NULL;
5302 Elf_Internal_Rela *irel, *irelend;
5303 bfd_byte *p;
5304 bfd_size_type amt;
5305
0e1862bb 5306 BFD_ASSERT (! bfd_link_relocatable (info));
0f64bb02
CM
5307
5308 *errmsg = NULL;
5309
5310 if (datasec->reloc_count == 0)
5311 return TRUE;
5312
5313 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5314
5315 /* Get a copy of the native relocations. */
5316 internal_relocs = (_bfd_elf_link_read_relocs
2c3fc389 5317 (abfd, datasec, NULL, (Elf_Internal_Rela *) NULL,
0f64bb02
CM
5318 info->keep_memory));
5319 if (internal_relocs == NULL)
5320 goto error_return;
5321
5322 amt = (bfd_size_type) datasec->reloc_count * 12;
5323 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
5324 if (relsec->contents == NULL)
5325 goto error_return;
5326
5327 p = relsec->contents;
5328
5329 irelend = internal_relocs + datasec->reloc_count;
5330 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
5331 {
5332 asection *targetsec;
5333
5334 /* We are going to write a four byte longword into the runtime
5335 reloc section. The longword will be the address in the data
5336 section which must be relocated. It is followed by the name
5337 of the target section NUL-padded or truncated to 8
5338 characters. */
5339
5340 /* We can only relocate absolute longword relocs at run time. */
cb88ce9f 5341 if (ELF32_R_TYPE (irel->r_info) != (int) R_BFIN_BYTE4_DATA)
0f64bb02 5342 {
0aa13fee 5343 *errmsg = _("unsupported relocation type");
0f64bb02
CM
5344 bfd_set_error (bfd_error_bad_value);
5345 goto error_return;
5346 }
5347
5348 /* Get the target section referred to by the reloc. */
5349 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5350 {
5351 /* A local symbol. */
5352 Elf_Internal_Sym *isym;
5353
5354 /* Read this BFD's local symbols if we haven't done so already. */
5355 if (isymbuf == NULL)
5356 {
5357 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5358 if (isymbuf == NULL)
5359 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5360 symtab_hdr->sh_info, 0,
5361 NULL, NULL, NULL);
5362 if (isymbuf == NULL)
5363 goto error_return;
5364 }
5365
5366 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5367 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
5368 }
5369 else
5370 {
5371 unsigned long indx;
5372 struct elf_link_hash_entry *h;
5373
5374 /* An external symbol. */
5375 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5376 h = elf_sym_hashes (abfd)[indx];
5377 BFD_ASSERT (h != NULL);
5378 if (h->root.type == bfd_link_hash_defined
5379 || h->root.type == bfd_link_hash_defweak)
5380 targetsec = h->root.u.def.section;
5381 else
5382 targetsec = NULL;
5383 }
5384
5385 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
5386 memset (p + 4, 0, 8);
5387 if (targetsec != NULL)
9ba4c445 5388 strncpy ((char *) p + 4, targetsec->output_section->name, 8);
0f64bb02
CM
5389 }
5390
5391 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
5392 free (isymbuf);
5393 if (internal_relocs != NULL
5394 && elf_section_data (datasec)->relocs != internal_relocs)
5395 free (internal_relocs);
5396 return TRUE;
5397
5398error_return:
5399 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
5400 free (isymbuf);
5401 if (internal_relocs != NULL
5402 && elf_section_data (datasec)->relocs != internal_relocs)
5403 free (internal_relocs);
5404 return FALSE;
5405}
b0a0b978
JZ
5406
5407struct bfd_elf_special_section const elf32_bfin_special_sections[] =
5408{
5409 { ".l1.text", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
5410 { ".l1.data", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
07d6d2b8 5411 { NULL, 0, 0, 0, 0 }
b0a0b978
JZ
5412};
5413
48d502e1 5414\f
6d00b590 5415#define TARGET_LITTLE_SYM bfin_elf32_vec
0f64bb02
CM
5416#define TARGET_LITTLE_NAME "elf32-bfin"
5417#define ELF_ARCH bfd_arch_bfin
ae95ffa6 5418#define ELF_TARGET_ID BFIN_ELF_DATA
3b55e94a 5419#define ELF_MACHINE_CODE EM_BLACKFIN
0f64bb02
CM
5420#define ELF_MAXPAGESIZE 0x1000
5421#define elf_symbol_leading_char '_'
5422
5423#define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup
157090f7
AM
5424#define bfd_elf32_bfd_reloc_name_lookup \
5425 bfin_bfd_reloc_name_lookup
0f64bb02
CM
5426#define elf_info_to_howto bfin_info_to_howto
5427#define elf_info_to_howto_rel 0
48d502e1 5428#define elf_backend_object_p elf32_bfin_object_p
0f64bb02
CM
5429
5430#define bfd_elf32_bfd_is_local_label_name \
07d6d2b8 5431 bfin_is_local_label_name
0f64bb02
CM
5432#define bfin_hash_table(p) \
5433 ((struct bfin_link_hash_table *) (p)->hash)
5434
5435
5436
5437#define elf_backend_create_dynamic_sections \
07d6d2b8 5438 _bfd_elf_create_dynamic_sections
0f64bb02 5439#define bfd_elf32_bfd_link_hash_table_create \
07d6d2b8
AM
5440 bfin_link_hash_table_create
5441#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
0f64bb02 5442
07d6d2b8 5443#define elf_backend_check_relocs bfin_check_relocs
0f64bb02 5444#define elf_backend_adjust_dynamic_symbol \
07d6d2b8 5445 bfin_adjust_dynamic_symbol
0f64bb02 5446#define elf_backend_size_dynamic_sections \
07d6d2b8
AM
5447 bfin_size_dynamic_sections
5448#define elf_backend_relocate_section bfin_relocate_section
0f64bb02 5449#define elf_backend_finish_dynamic_symbol \
07d6d2b8 5450 bfin_finish_dynamic_symbol
0f64bb02 5451#define elf_backend_finish_dynamic_sections \
07d6d2b8
AM
5452 bfin_finish_dynamic_sections
5453#define elf_backend_gc_mark_hook bfin_gc_mark_hook
0f64bb02 5454#define bfd_elf32_bfd_merge_private_bfd_data \
07d6d2b8 5455 elf32_bfin_merge_private_bfd_data
0f64bb02 5456#define bfd_elf32_bfd_set_private_flags \
07d6d2b8 5457 elf32_bfin_set_private_flags
0f64bb02 5458#define bfd_elf32_bfd_print_private_bfd_data \
07d6d2b8 5459 elf32_bfin_print_private_bfd_data
781303ce 5460#define elf_backend_final_write_processing \
07d6d2b8
AM
5461 elf32_bfin_final_write_processing
5462#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
04c3a755 5463#define elf_backend_stack_align 8
0f64bb02 5464#define elf_backend_can_gc_sections 1
b0a0b978 5465#define elf_backend_special_sections elf32_bfin_special_sections
0f64bb02
CM
5466#define elf_backend_can_refcount 1
5467#define elf_backend_want_got_plt 0
5468#define elf_backend_plt_readonly 1
5469#define elf_backend_want_plt_sym 0
07d6d2b8
AM
5470#define elf_backend_got_header_size 12
5471#define elf_backend_rela_normal 1
0f64bb02 5472
48d502e1
BS
5473#include "elf32-target.h"
5474
5475#undef TARGET_LITTLE_SYM
07d6d2b8 5476#define TARGET_LITTLE_SYM bfin_elf32_fdpic_vec
48d502e1
BS
5477#undef TARGET_LITTLE_NAME
5478#define TARGET_LITTLE_NAME "elf32-bfinfdpic"
5479#undef elf32_bed
07d6d2b8 5480#define elf32_bed elf32_bfinfdpic_bed
48d502e1 5481
48d502e1 5482#undef elf_backend_got_header_size
07d6d2b8 5483#define elf_backend_got_header_size 0
48d502e1
BS
5484
5485#undef elf_backend_relocate_section
07d6d2b8 5486#define elf_backend_relocate_section bfinfdpic_relocate_section
48d502e1 5487#undef elf_backend_check_relocs
07d6d2b8 5488#define elf_backend_check_relocs bfinfdpic_check_relocs
48d502e1
BS
5489
5490#undef bfd_elf32_bfd_link_hash_table_create
5491#define bfd_elf32_bfd_link_hash_table_create \
5492 bfinfdpic_elf_link_hash_table_create
5493#undef elf_backend_always_size_sections
5494#define elf_backend_always_size_sections \
5495 elf32_bfinfdpic_always_size_sections
48d502e1
BS
5496
5497#undef elf_backend_create_dynamic_sections
5498#define elf_backend_create_dynamic_sections \
5499 elf32_bfinfdpic_create_dynamic_sections
5500#undef elf_backend_adjust_dynamic_symbol
5501#define elf_backend_adjust_dynamic_symbol \
5502 elf32_bfinfdpic_adjust_dynamic_symbol
5503#undef elf_backend_size_dynamic_sections
5504#define elf_backend_size_dynamic_sections \
5505 elf32_bfinfdpic_size_dynamic_sections
5506#undef elf_backend_finish_dynamic_symbol
5507#define elf_backend_finish_dynamic_symbol \
5508 elf32_bfinfdpic_finish_dynamic_symbol
5509#undef elf_backend_finish_dynamic_sections
5510#define elf_backend_finish_dynamic_sections \
5511 elf32_bfinfdpic_finish_dynamic_sections
5512
6a9adeca
BS
5513#undef elf_backend_discard_info
5514#define elf_backend_discard_info \
5515 bfinfdpic_elf_discard_info
48d502e1
BS
5516#undef elf_backend_can_make_relative_eh_frame
5517#define elf_backend_can_make_relative_eh_frame \
5518 bfinfdpic_elf_use_relative_eh_frame
5519#undef elf_backend_can_make_lsda_relative_eh_frame
5520#define elf_backend_can_make_lsda_relative_eh_frame \
5521 bfinfdpic_elf_use_relative_eh_frame
5522#undef elf_backend_encode_eh_address
5523#define elf_backend_encode_eh_address \
5524 bfinfdpic_elf_encode_eh_address
5525
5526#undef elf_backend_may_use_rel_p
07d6d2b8 5527#define elf_backend_may_use_rel_p 1
48d502e1 5528#undef elf_backend_may_use_rela_p
07d6d2b8 5529#define elf_backend_may_use_rela_p 1
48d502e1
BS
5530/* We use REL for dynamic relocations only. */
5531#undef elf_backend_default_use_rela_p
07d6d2b8 5532#define elf_backend_default_use_rela_p 1
48d502e1
BS
5533
5534#undef elf_backend_omit_section_dynsym
5535#define elf_backend_omit_section_dynsym _bfinfdpic_link_omit_section_dynsym
0f64bb02
CM
5536
5537#include "elf32-target.h"
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