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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.
250d07de 2 Copyright (C) 2005-2021 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"
8410a658 28#include "elf32-bfin.h"
0f64bb02 29
0f64bb02
CM
30/* FUNCTION : bfin_pltpc_reloc
31 ABSTRACT : TODO : figure out how to handle pltpc relocs. */
32static bfd_reloc_status_type
33bfin_pltpc_reloc (
34 bfd *abfd ATTRIBUTE_UNUSED,
35 arelent *reloc_entry ATTRIBUTE_UNUSED,
36 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 37 void * data ATTRIBUTE_UNUSED,
0f64bb02
CM
38 asection *input_section ATTRIBUTE_UNUSED,
39 bfd *output_bfd ATTRIBUTE_UNUSED,
3b55e94a 40 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
41{
42 bfd_reloc_status_type flag = bfd_reloc_ok;
3b55e94a 43 return flag;
0f64bb02
CM
44}
45\f
46
47static bfd_reloc_status_type
48bfin_pcrel24_reloc (bfd *abfd,
07d6d2b8
AM
49 arelent *reloc_entry,
50 asymbol *symbol,
51 void * data,
52 asection *input_section,
53 bfd *output_bfd,
54 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
55{
56 bfd_vma relocation;
57 bfd_size_type addr = reloc_entry->address;
58 bfd_vma output_base = 0;
59 reloc_howto_type *howto = reloc_entry->howto;
60 asection *output_section;
0a1b45a2 61 bool relocatable = (output_bfd != NULL);
0f64bb02
CM
62
63 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
64 return bfd_reloc_outofrange;
65
3b55e94a
BS
66 if (bfd_is_und_section (symbol->section)
67 && (symbol->flags & BSF_WEAK) == 0
68 && !relocatable)
69 return bfd_reloc_undefined;
70
71 if (bfd_is_com_section (symbol->section))
72 relocation = 0;
0f64bb02 73 else
3b55e94a 74 relocation = symbol->value;
0f64bb02 75
3b55e94a
BS
76 output_section = symbol->section->output_section;
77
78 if (relocatable)
79 output_base = 0;
80 else
81 output_base = output_section->vma;
82
83 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
84 relocation += output_base + symbol->section->output_offset;
0f64bb02 85
3b55e94a
BS
86 if (!relocatable && !strcmp (symbol->name, symbol->section->name))
87 relocation += reloc_entry->addend;
0f64bb02 88
0f64bb02
CM
89 relocation -= input_section->output_section->vma + input_section->output_offset;
90 relocation -= reloc_entry->address;
91
92 if (howto->complain_on_overflow != complain_overflow_dont)
93 {
94 bfd_reloc_status_type status;
3b55e94a
BS
95 status = bfd_check_overflow (howto->complain_on_overflow,
96 howto->bitsize,
97 howto->rightshift,
98 bfd_arch_bits_per_address(abfd),
99 relocation);
0f64bb02
CM
100 if (status != bfd_reloc_ok)
101 return status;
102 }
3b55e94a 103
0f64bb02
CM
104 /* if rightshift is 1 and the number odd, return error. */
105 if (howto->rightshift && (relocation & 0x01))
106 {
4eca0228 107 _bfd_error_handler (_("relocation should be even number"));
0f64bb02
CM
108 return bfd_reloc_overflow;
109 }
110
111 relocation >>= (bfd_vma) howto->rightshift;
112 /* Shift everything up to where it's going to be used. */
113
114 relocation <<= (bfd_vma) howto->bitpos;
115
116 if (relocatable)
117 {
118 reloc_entry->address += input_section->output_offset;
119 reloc_entry->addend += symbol->section->output_offset;
120 }
121
122 {
123 short x;
124
125 /* We are getting reloc_entry->address 2 byte off from
3b55e94a
BS
126 the start of instruction. Assuming absolute postion
127 of the reloc data. But, following code had been written assuming
128 reloc address is starting at begining of instruction.
129 To compensate that I have increased the value of
130 relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
0f64bb02
CM
131
132 relocation += 1;
133 x = bfd_get_16 (abfd, (bfd_byte *) data + addr - 2);
134 x = (x & 0xff00) | ((relocation >> 16) & 0xff);
135 bfd_put_16 (abfd, x, (unsigned char *) data + addr - 2);
136
137 x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
138 x = relocation & 0xFFFF;
139 bfd_put_16 (abfd, x, (unsigned char *) data + addr );
140 }
141 return bfd_reloc_ok;
142}
143
144static bfd_reloc_status_type
3b55e94a 145bfin_imm16_reloc (bfd *abfd,
4b24dd1a
AM
146 arelent *reloc_entry,
147 asymbol *symbol,
148 void * data,
149 asection *input_section,
150 bfd *output_bfd,
151 char **error_message ATTRIBUTE_UNUSED)
0f64bb02 152{
3b55e94a
BS
153 bfd_vma relocation, x;
154 bfd_size_type reloc_addr = reloc_entry->address;
0f64bb02 155 bfd_vma output_base = 0;
3b55e94a 156 reloc_howto_type *howto = reloc_entry->howto;
0f64bb02 157 asection *output_section;
0a1b45a2 158 bool relocatable = (output_bfd != NULL);
0f64bb02 159
3b55e94a
BS
160 /* Is the address of the relocation really within the section? */
161 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
162 return bfd_reloc_outofrange;
163
0f64bb02
CM
164 if (bfd_is_und_section (symbol->section)
165 && (symbol->flags & BSF_WEAK) == 0
166 && !relocatable)
167 return bfd_reloc_undefined;
168
0f64bb02 169 output_section = symbol->section->output_section;
3b55e94a 170 relocation = symbol->value;
0f64bb02
CM
171
172 /* Convert input-section-relative symbol value to absolute. */
173 if (relocatable)
174 output_base = 0;
175 else
176 output_base = output_section->vma;
177
3b55e94a 178 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
0f64bb02
CM
179 relocation += output_base + symbol->section->output_offset;
180
181 /* Add in supplied addend. */
182 relocation += reloc_entry->addend;
183
184 if (relocatable)
185 {
186 reloc_entry->address += input_section->output_offset;
187 reloc_entry->addend += symbol->section->output_offset;
188 }
0f64bb02
CM
189 else
190 {
191 reloc_entry->addend = 0;
192 }
193
194 if (howto->complain_on_overflow != complain_overflow_dont)
195 {
196 bfd_reloc_status_type flag;
197 flag = bfd_check_overflow (howto->complain_on_overflow,
3b55e94a
BS
198 howto->bitsize,
199 howto->rightshift,
200 bfd_arch_bits_per_address(abfd),
201 relocation);
0f64bb02 202 if (flag != bfd_reloc_ok)
3b55e94a 203 return flag;
0f64bb02
CM
204 }
205
0f64bb02
CM
206 /* Here the variable relocation holds the final address of the
207 symbol we are relocating against, plus any addend. */
208
0f64bb02
CM
209 relocation >>= (bfd_vma) howto->rightshift;
210 x = relocation;
211 bfd_put_16 (abfd, x, (unsigned char *) data + reloc_addr);
212 return bfd_reloc_ok;
213}
214
215
216static bfd_reloc_status_type
217bfin_byte4_reloc (bfd *abfd,
07d6d2b8
AM
218 arelent *reloc_entry,
219 asymbol *symbol,
220 void * data,
221 asection *input_section,
222 bfd *output_bfd,
223 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
224{
225 bfd_vma relocation, x;
226 bfd_size_type addr = reloc_entry->address;
227 bfd_vma output_base = 0;
228 asection *output_section;
0a1b45a2 229 bool relocatable = (output_bfd != NULL);
0f64bb02
CM
230
231 /* Is the address of the relocation really within the section? */
232 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
233 return bfd_reloc_outofrange;
234
3b55e94a
BS
235 if (bfd_is_und_section (symbol->section)
236 && (symbol->flags & BSF_WEAK) == 0
237 && !relocatable)
238 return bfd_reloc_undefined;
0f64bb02 239
3b55e94a
BS
240 output_section = symbol->section->output_section;
241 relocation = symbol->value;
242 /* Convert input-section-relative symbol value to absolute. */
243 if (relocatable)
244 output_base = 0;
0f64bb02 245 else
3b55e94a
BS
246 output_base = output_section->vma;
247
248 if ((symbol->name
249 && symbol->section->name
250 && !strcmp (symbol->name, symbol->section->name))
251 || !relocatable)
0f64bb02 252 {
3b55e94a 253 relocation += output_base + symbol->section->output_offset;
0f64bb02
CM
254 }
255
3b55e94a
BS
256 relocation += reloc_entry->addend;
257
0f64bb02 258 if (relocatable)
3b55e94a 259 {
0f64bb02
CM
260 /* This output will be relocatable ... like ld -r. */
261 reloc_entry->address += input_section->output_offset;
262 reloc_entry->addend += symbol->section->output_offset;
263 }
264 else
265 {
266 reloc_entry->addend = 0;
267 }
268
269 /* Here the variable relocation holds the final address of the
270 symbol we are relocating against, plus any addend. */
271 x = relocation & 0xFFFF0000;
272 x >>=16;
273 bfd_put_16 (abfd, x, (unsigned char *) data + addr + 2);
3b55e94a 274
0f64bb02
CM
275 x = relocation & 0x0000FFFF;
276 bfd_put_16 (abfd, x, (unsigned char *) data + addr);
277 return bfd_reloc_ok;
278}
279
280/* bfin_bfd_reloc handles the blackfin arithmetic relocations.
281 Use this instead of bfd_perform_relocation. */
282static bfd_reloc_status_type
283bfin_bfd_reloc (bfd *abfd,
284 arelent *reloc_entry,
4b24dd1a
AM
285 asymbol *symbol,
286 void * data,
287 asection *input_section,
288 bfd *output_bfd,
289 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM
290{
291 bfd_vma relocation;
292 bfd_size_type addr = reloc_entry->address;
293 bfd_vma output_base = 0;
294 reloc_howto_type *howto = reloc_entry->howto;
295 asection *output_section;
0a1b45a2 296 bool relocatable = (output_bfd != NULL);
0f64bb02
CM
297
298 /* Is the address of the relocation really within the section? */
299 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
300 return bfd_reloc_outofrange;
301
3b55e94a
BS
302 if (bfd_is_und_section (symbol->section)
303 && (symbol->flags & BSF_WEAK) == 0
304 && !relocatable)
305 return bfd_reloc_undefined;
306
307 /* Get symbol value. (Common symbols are special.) */
308 if (bfd_is_com_section (symbol->section))
309 relocation = 0;
0f64bb02 310 else
3b55e94a
BS
311 relocation = symbol->value;
312
313 output_section = symbol->section->output_section;
314
315 /* Convert input-section-relative symbol value to absolute. */
316 if (relocatable)
317 output_base = 0;
318 else
319 output_base = output_section->vma;
320
321 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
322 relocation += output_base + symbol->section->output_offset;
323
324 if (!relocatable && !strcmp (symbol->name, symbol->section->name))
0f64bb02 325 {
3b55e94a
BS
326 /* Add in supplied addend. */
327 relocation += reloc_entry->addend;
0f64bb02 328 }
3b55e94a 329
0f64bb02
CM
330 /* Here the variable relocation holds the final address of the
331 symbol we are relocating against, plus any addend. */
332
535b785f 333 if (howto->pc_relative)
0f64bb02
CM
334 {
335 relocation -= input_section->output_section->vma + input_section->output_offset;
336
535b785f 337 if (howto->pcrel_offset)
07d6d2b8 338 relocation -= reloc_entry->address;
0f64bb02
CM
339 }
340
341 if (relocatable)
342 {
343 reloc_entry->address += input_section->output_offset;
344 reloc_entry->addend += symbol->section->output_offset;
345 }
346
347 if (howto->complain_on_overflow != complain_overflow_dont)
348 {
349 bfd_reloc_status_type status;
350
3b55e94a 351 status = bfd_check_overflow (howto->complain_on_overflow,
07d6d2b8
AM
352 howto->bitsize,
353 howto->rightshift,
354 bfd_arch_bits_per_address(abfd),
355 relocation);
0f64bb02
CM
356 if (status != bfd_reloc_ok)
357 return status;
358 }
3b55e94a 359
0f64bb02
CM
360 /* If rightshift is 1 and the number odd, return error. */
361 if (howto->rightshift && (relocation & 0x01))
362 {
4eca0228 363 _bfd_error_handler (_("relocation should be even number"));
0f64bb02
CM
364 return bfd_reloc_overflow;
365 }
366
367 relocation >>= (bfd_vma) howto->rightshift;
368
369 /* Shift everything up to where it's going to be used. */
370
371 relocation <<= (bfd_vma) howto->bitpos;
372
3b55e94a 373#define DOIT(x) \
0f64bb02
CM
374 x = ( (x & ~howto->dst_mask) | (relocation & howto->dst_mask))
375
376 /* handle 8 and 16 bit relocations here. */
377 switch (howto->size)
378 {
379 case 0:
380 {
07d6d2b8
AM
381 char x = bfd_get_8 (abfd, (char *) data + addr);
382 DOIT (x);
383 bfd_put_8 (abfd, x, (unsigned char *) data + addr);
0f64bb02
CM
384 }
385 break;
386
387 case 1:
388 {
07d6d2b8
AM
389 unsigned short x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
390 DOIT (x);
391 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + addr);
0f64bb02
CM
392 }
393 break;
394
395 default:
396 return bfd_reloc_other;
397 }
398
3b55e94a 399 return bfd_reloc_ok;
0f64bb02
CM
400}
401
0f64bb02
CM
402/* HOWTO Table for blackfin.
403 Blackfin relocations are fairly complicated.
404 Some of the salient features are
405 a. Even numbered offsets. A number of (not all) relocations are
406 even numbered. This means that the rightmost bit is not stored.
407 Needs to right shift by 1 and check to see if value is not odd
408 b. A relocation can be an expression. An expression takes on
409 a variety of relocations arranged in a stack.
410 As a result, we cannot use the standard generic function as special
411 function. We will have our own, which is very similar to the standard
412 generic function except that it understands how to get the value from
413 the relocation stack. . */
414
415#define BFIN_RELOC_MIN 0
48d502e1 416#define BFIN_RELOC_MAX 0x21
0f64bb02
CM
417#define BFIN_GNUEXT_RELOC_MIN 0x40
418#define BFIN_GNUEXT_RELOC_MAX 0x43
419#define BFIN_ARELOC_MIN 0xE0
420#define BFIN_ARELOC_MAX 0xF3
421
422static reloc_howto_type bfin_howto_table [] =
423{
424 /* This reloc does nothing. . */
cb88ce9f 425 HOWTO (R_BFIN_UNUSED0, /* type. */
0f64bb02 426 0, /* rightshift. */
6346d5ca
AM
427 3, /* size (0 = byte, 1 = short, 2 = long). */
428 0, /* bitsize. */
0a1b45a2 429 false, /* pc_relative. */
0f64bb02 430 0, /* bitpos. */
6346d5ca 431 complain_overflow_dont, /* complain_on_overflow. */
0f64bb02 432 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 433 "R_BFIN_UNUSED0", /* name. */
0a1b45a2 434 false, /* partial_inplace. */
0f64bb02
CM
435 0, /* src_mask. */
436 0, /* dst_mask. */
0a1b45a2 437 false), /* pcrel_offset. */
0f64bb02 438
cb88ce9f 439 HOWTO (R_BFIN_PCREL5M2, /* type. */
0f64bb02
CM
440 1, /* rightshift. */
441 1, /* size (0 = byte, 1 = short, 2 = long).. */
442 4, /* bitsize. */
0a1b45a2 443 true, /* pc_relative. */
0f64bb02
CM
444 0, /* bitpos. */
445 complain_overflow_unsigned, /* complain_on_overflow. */
446 bfin_bfd_reloc, /* special_function. */
cb88ce9f 447 "R_BFIN_PCREL5M2", /* name. */
0a1b45a2 448 false, /* partial_inplace. */
f4707595 449 0, /* src_mask. */
0f64bb02 450 0x0000000F, /* dst_mask. */
0a1b45a2 451 false), /* pcrel_offset. */
0f64bb02 452
cb88ce9f 453 HOWTO (R_BFIN_UNUSED1, /* type. */
0f64bb02 454 0, /* rightshift. */
6346d5ca
AM
455 3, /* size (0 = byte, 1 = short, 2 = long). */
456 0, /* bitsize. */
0a1b45a2 457 false, /* pc_relative. */
0f64bb02 458 0, /* bitpos. */
6346d5ca 459 complain_overflow_dont, /* complain_on_overflow. */
0f64bb02 460 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 461 "R_BFIN_UNUSED1", /* name. */
0a1b45a2 462 false, /* partial_inplace. */
0f64bb02
CM
463 0, /* src_mask. */
464 0, /* dst_mask. */
0a1b45a2 465 false), /* pcrel_offset. */
0f64bb02 466
cb88ce9f 467 HOWTO (R_BFIN_PCREL10, /* type. */
0f64bb02
CM
468 1, /* rightshift. */
469 1, /* size (0 = byte, 1 = short, 2 = long). */
470 10, /* bitsize. */
0a1b45a2 471 true, /* pc_relative. */
0f64bb02
CM
472 0, /* bitpos. */
473 complain_overflow_signed, /* complain_on_overflow. */
474 bfin_bfd_reloc, /* special_function. */
cb88ce9f 475 "R_BFIN_PCREL10", /* name. */
0a1b45a2 476 false, /* partial_inplace. */
f4707595 477 0, /* src_mask. */
0f64bb02 478 0x000003FF, /* dst_mask. */
0a1b45a2 479 true), /* pcrel_offset. */
3b55e94a 480
cb88ce9f 481 HOWTO (R_BFIN_PCREL12_JUMP, /* type. */
0f64bb02
CM
482 1, /* rightshift. */
483 /* the offset is actually 13 bit
484 aligned on a word boundary so
485 only 12 bits have to be used.
486 Right shift the rightmost bit.. */
487 1, /* size (0 = byte, 1 = short, 2 = long). */
488 12, /* bitsize. */
0a1b45a2 489 true, /* pc_relative. */
0f64bb02
CM
490 0, /* bitpos. */
491 complain_overflow_signed, /* complain_on_overflow. */
492 bfin_bfd_reloc, /* special_function. */
cb88ce9f 493 "R_BFIN_PCREL12_JUMP", /* name. */
0a1b45a2 494 false, /* partial_inplace. */
f4707595 495 0, /* src_mask. */
0f64bb02 496 0x0FFF, /* dst_mask. */
0a1b45a2 497 true), /* pcrel_offset. */
0f64bb02 498
cb88ce9f 499 HOWTO (R_BFIN_RIMM16, /* type. */
0f64bb02
CM
500 0, /* rightshift. */
501 1, /* size (0 = byte, 1 = short, 2 = long). */
502 16, /* bitsize. */
0a1b45a2 503 false, /* pc_relative. */
0f64bb02
CM
504 0, /* bitpos. */
505 complain_overflow_signed, /* complain_on_overflow. */
506 bfin_imm16_reloc, /* special_function. */
cb88ce9f 507 "R_BFIN_RIMM16", /* name. */
0a1b45a2 508 false, /* partial_inplace. */
f4707595 509 0, /* src_mask. */
0f64bb02 510 0x0000FFFF, /* dst_mask. */
0a1b45a2 511 true), /* pcrel_offset. */
0f64bb02 512
cb88ce9f 513 HOWTO (R_BFIN_LUIMM16, /* type. */
0f64bb02
CM
514 0, /* rightshift. */
515 1, /* size (0 = byte, 1 = short, 2 = long). */
516 16, /* bitsize. */
0a1b45a2 517 false, /* pc_relative. */
0f64bb02
CM
518 0, /* bitpos. */
519 complain_overflow_dont, /* complain_on_overflow. */
520 bfin_imm16_reloc, /* special_function. */
cb88ce9f 521 "R_BFIN_LUIMM16", /* name. */
0a1b45a2 522 false, /* partial_inplace. */
f4707595 523 0, /* src_mask. */
0f64bb02 524 0x0000FFFF, /* dst_mask. */
0a1b45a2 525 true), /* pcrel_offset. */
3b55e94a 526
cb88ce9f 527 HOWTO (R_BFIN_HUIMM16, /* type. */
0f64bb02
CM
528 16, /* rightshift. */
529 1, /* size (0 = byte, 1 = short, 2 = long). */
530 16, /* bitsize. */
0a1b45a2 531 false, /* pc_relative. */
0f64bb02
CM
532 0, /* bitpos. */
533 complain_overflow_unsigned, /* complain_on_overflow. */
534 bfin_imm16_reloc, /* special_function. */
cb88ce9f 535 "R_BFIN_HUIMM16", /* name. */
0a1b45a2 536 false, /* partial_inplace. */
f4707595 537 0, /* src_mask. */
0f64bb02 538 0x0000FFFF, /* dst_mask. */
0a1b45a2 539 true), /* pcrel_offset. */
0f64bb02 540
cb88ce9f 541 HOWTO (R_BFIN_PCREL12_JUMP_S, /* type. */
0f64bb02
CM
542 1, /* rightshift. */
543 1, /* size (0 = byte, 1 = short, 2 = long). */
544 12, /* bitsize. */
0a1b45a2 545 true, /* pc_relative. */
0f64bb02
CM
546 0, /* bitpos. */
547 complain_overflow_signed, /* complain_on_overflow. */
548 bfin_bfd_reloc, /* special_function. */
cb88ce9f 549 "R_BFIN_PCREL12_JUMP_S", /* name. */
0a1b45a2 550 false, /* partial_inplace. */
f4707595 551 0, /* src_mask. */
0f64bb02 552 0x00000FFF, /* dst_mask. */
0a1b45a2 553 true), /* pcrel_offset. */
0f64bb02 554
cb88ce9f 555 HOWTO (R_BFIN_PCREL24_JUMP_X, /* type. */
07d6d2b8
AM
556 1, /* rightshift. */
557 2, /* size (0 = byte, 1 = short, 2 = long). */
558 24, /* bitsize. */
0a1b45a2 559 true, /* pc_relative. */
07d6d2b8
AM
560 0, /* bitpos. */
561 complain_overflow_signed, /* complain_on_overflow. */
562 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 563 "R_BFIN_PCREL24_JUMP_X", /* name. */
0a1b45a2 564 false, /* partial_inplace. */
f4707595 565 0, /* src_mask. */
0f64bb02 566 0x00FFFFFF, /* dst_mask. */
0a1b45a2 567 true), /* pcrel_offset. */
0f64bb02 568
cb88ce9f 569 HOWTO (R_BFIN_PCREL24, /* type. */
0f64bb02
CM
570 1, /* rightshift. */
571 2, /* size (0 = byte, 1 = short, 2 = long). */
572 24, /* bitsize. */
0a1b45a2 573 true, /* pc_relative. */
0f64bb02
CM
574 0, /* bitpos. */
575 complain_overflow_signed, /* complain_on_overflow. */
576 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 577 "R_BFIN_PCREL24", /* name. */
0a1b45a2 578 false, /* partial_inplace. */
f4707595 579 0, /* src_mask. */
0f64bb02 580 0x00FFFFFF, /* dst_mask. */
0a1b45a2 581 true), /* pcrel_offset. */
0f64bb02 582
cb88ce9f 583 HOWTO (R_BFIN_UNUSEDB, /* type. */
0f64bb02 584 0, /* rightshift. */
6346d5ca
AM
585 3, /* size (0 = byte, 1 = short, 2 = long). */
586 0, /* bitsize. */
0a1b45a2 587 false, /* pc_relative. */
0f64bb02
CM
588 0, /* bitpos. */
589 complain_overflow_dont, /* complain_on_overflow. */
590 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 591 "R_BFIN_UNUSEDB", /* name. */
0a1b45a2 592 false, /* partial_inplace. */
0f64bb02
CM
593 0, /* src_mask. */
594 0, /* dst_mask. */
0a1b45a2 595 false), /* pcrel_offset. */
0f64bb02 596
cb88ce9f 597 HOWTO (R_BFIN_UNUSEDC, /* type. */
0f64bb02 598 0, /* rightshift. */
6346d5ca
AM
599 3, /* size (0 = byte, 1 = short, 2 = long). */
600 0, /* bitsize. */
0a1b45a2 601 false, /* pc_relative. */
0f64bb02
CM
602 0, /* bitpos. */
603 complain_overflow_dont, /* complain_on_overflow. */
604 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 605 "R_BFIN_UNUSEDC", /* name. */
0a1b45a2 606 false, /* partial_inplace. */
0f64bb02
CM
607 0, /* src_mask. */
608 0, /* dst_mask. */
0a1b45a2 609 false), /* pcrel_offset. */
0f64bb02 610
cb88ce9f 611 HOWTO (R_BFIN_PCREL24_JUMP_L, /* type. */
0f64bb02
CM
612 1, /* rightshift. */
613 2, /* size (0 = byte, 1 = short, 2 = long). */
614 24, /* bitsize. */
0a1b45a2 615 true, /* pc_relative. */
0f64bb02
CM
616 0, /* bitpos. */
617 complain_overflow_signed, /* complain_on_overflow. */
618 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 619 "R_BFIN_PCREL24_JUMP_L", /* name. */
0a1b45a2 620 false, /* partial_inplace. */
f4707595 621 0, /* src_mask. */
0f64bb02 622 0x00FFFFFF, /* dst_mask. */
0a1b45a2 623 true), /* pcrel_offset. */
0f64bb02 624
cb88ce9f 625 HOWTO (R_BFIN_PCREL24_CALL_X, /* type. */
0f64bb02
CM
626 1, /* rightshift. */
627 2, /* size (0 = byte, 1 = short, 2 = long). */
628 24, /* bitsize. */
0a1b45a2 629 true, /* pc_relative. */
0f64bb02
CM
630 0, /* bitpos. */
631 complain_overflow_signed, /* complain_on_overflow. */
632 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 633 "R_BFIN_PCREL24_CALL_X", /* name. */
0a1b45a2 634 false, /* partial_inplace. */
f4707595 635 0, /* src_mask. */
0f64bb02 636 0x00FFFFFF, /* dst_mask. */
0a1b45a2 637 true), /* pcrel_offset. */
0f64bb02 638
cb88ce9f 639 HOWTO (R_BFIN_VAR_EQ_SYMB, /* type. */
0f64bb02
CM
640 0, /* rightshift. */
641 2, /* size (0 = byte, 1 = short, 2 = long). */
642 32, /* bitsize. */
0a1b45a2 643 false, /* pc_relative. */
0f64bb02
CM
644 0, /* bitpos. */
645 complain_overflow_bitfield, /* complain_on_overflow. */
646 bfin_bfd_reloc, /* special_function. */
cb88ce9f 647 "R_BFIN_VAR_EQ_SYMB", /* name. */
0a1b45a2 648 false, /* partial_inplace. */
0f64bb02
CM
649 0, /* src_mask. */
650 0, /* dst_mask. */
0a1b45a2 651 false), /* pcrel_offset. */
0f64bb02 652
cb88ce9f 653 HOWTO (R_BFIN_BYTE_DATA, /* type. */
0f64bb02
CM
654 0, /* rightshift. */
655 0, /* size (0 = byte, 1 = short, 2 = long). */
656 8, /* bitsize. */
0a1b45a2 657 false, /* pc_relative. */
0f64bb02
CM
658 0, /* bitpos. */
659 complain_overflow_unsigned, /* complain_on_overflow. */
660 bfin_bfd_reloc, /* special_function. */
cb88ce9f 661 "R_BFIN_BYTE_DATA", /* name. */
0a1b45a2 662 false, /* partial_inplace. */
f4707595 663 0, /* src_mask. */
0f64bb02 664 0xFF, /* dst_mask. */
0a1b45a2 665 true), /* pcrel_offset. */
0f64bb02 666
cb88ce9f 667 HOWTO (R_BFIN_BYTE2_DATA, /* type. */
0f64bb02
CM
668 0, /* rightshift. */
669 1, /* size (0 = byte, 1 = short, 2 = long). */
670 16, /* bitsize. */
0a1b45a2 671 false, /* pc_relative. */
0f64bb02
CM
672 0, /* bitpos. */
673 complain_overflow_signed, /* complain_on_overflow. */
674 bfin_bfd_reloc, /* special_function. */
cb88ce9f 675 "R_BFIN_BYTE2_DATA", /* name. */
0a1b45a2 676 false, /* partial_inplace. */
f4707595 677 0, /* src_mask. */
0f64bb02 678 0xFFFF, /* dst_mask. */
0a1b45a2 679 true), /* pcrel_offset. */
0f64bb02 680
cb88ce9f 681 HOWTO (R_BFIN_BYTE4_DATA, /* type. */
0f64bb02
CM
682 0, /* rightshift. */
683 2, /* size (0 = byte, 1 = short, 2 = long). */
684 32, /* bitsize. */
0a1b45a2 685 false, /* pc_relative. */
0f64bb02
CM
686 0, /* bitpos. */
687 complain_overflow_unsigned, /* complain_on_overflow. */
688 bfin_byte4_reloc, /* special_function. */
cb88ce9f 689 "R_BFIN_BYTE4_DATA", /* name. */
0a1b45a2 690 false, /* partial_inplace. */
f4707595 691 0, /* src_mask. */
0f64bb02 692 0xFFFFFFFF, /* dst_mask. */
0a1b45a2 693 true), /* pcrel_offset. */
0f64bb02 694
cb88ce9f 695 HOWTO (R_BFIN_PCREL11, /* type. */
0f64bb02
CM
696 1, /* rightshift. */
697 1, /* size (0 = byte, 1 = short, 2 = long). */
698 10, /* bitsize. */
0a1b45a2 699 true, /* pc_relative. */
0f64bb02
CM
700 0, /* bitpos. */
701 complain_overflow_unsigned, /* complain_on_overflow. */
702 bfin_bfd_reloc, /* special_function. */
cb88ce9f 703 "R_BFIN_PCREL11", /* name. */
0a1b45a2 704 false, /* partial_inplace. */
f4707595 705 0, /* src_mask. */
0f64bb02 706 0x000003FF, /* dst_mask. */
0a1b45a2 707 false), /* pcrel_offset. */
48d502e1
BS
708
709
710 /* A 18-bit signed operand with the GOT offset for the address of
711 the symbol. */
07d6d2b8 712 HOWTO (R_BFIN_GOT17M4, /* type */
48d502e1
BS
713 2, /* rightshift */
714 1, /* size (0 = byte, 1 = short, 2 = long) */
715 16, /* bitsize */
0a1b45a2 716 false, /* pc_relative */
48d502e1
BS
717 0, /* bitpos */
718 complain_overflow_signed, /* complain_on_overflow */
719 bfd_elf_generic_reloc, /* special_function */
5dff4664 720 "R_BFIN_GOT17M4", /* name */
0a1b45a2 721 false, /* partial_inplace */
07d6d2b8
AM
722 0xffff, /* src_mask */
723 0xffff, /* dst_mask */
0a1b45a2 724 false), /* pcrel_offset */
48d502e1
BS
725
726 /* The upper 16 bits of the GOT offset for the address of the
727 symbol. */
07d6d2b8 728 HOWTO (R_BFIN_GOTHI, /* type */
48d502e1
BS
729 0, /* rightshift */
730 1, /* size (0 = byte, 1 = short, 2 = long) */
731 16, /* bitsize */
0a1b45a2 732 false, /* pc_relative */
48d502e1
BS
733 0, /* bitpos */
734 complain_overflow_dont, /* complain_on_overflow */
735 bfd_elf_generic_reloc, /* special_function */
736 "R_BFIN_GOTHI", /* name */
0a1b45a2 737 false, /* partial_inplace */
07d6d2b8 738 0xffff, /* src_mask */
48d502e1 739 0xffff, /* dst_mask */
0a1b45a2 740 false), /* pcrel_offset */
48d502e1
BS
741
742 /* The lower 16 bits of the GOT offset for the address of the
743 symbol. */
07d6d2b8 744 HOWTO (R_BFIN_GOTLO, /* type */
48d502e1
BS
745 0, /* rightshift */
746 1, /* size (0 = byte, 1 = short, 2 = long) */
747 16, /* bitsize */
0a1b45a2 748 false, /* pc_relative */
48d502e1
BS
749 0, /* bitpos */
750 complain_overflow_dont, /* complain_on_overflow */
751 bfd_elf_generic_reloc, /* special_function */
752 "R_BFIN_GOTLO", /* name */
0a1b45a2 753 false, /* partial_inplace */
48d502e1
BS
754 0xffff, /* src_mask */
755 0xffff, /* dst_mask */
0a1b45a2 756 false), /* pcrel_offset */
48d502e1
BS
757
758 /* The 32-bit address of the canonical descriptor of a function. */
759 HOWTO (R_BFIN_FUNCDESC, /* type */
760 0, /* rightshift */
761 2, /* size (0 = byte, 1 = short, 2 = long) */
762 32, /* bitsize */
0a1b45a2 763 false, /* pc_relative */
48d502e1
BS
764 0, /* bitpos */
765 complain_overflow_bitfield, /* complain_on_overflow */
766 bfd_elf_generic_reloc, /* special_function */
767 "R_BFIN_FUNCDESC", /* name */
0a1b45a2 768 false, /* partial_inplace */
48d502e1
BS
769 0xffffffff, /* src_mask */
770 0xffffffff, /* dst_mask */
0a1b45a2 771 false), /* pcrel_offset */
48d502e1
BS
772
773 /* A 12-bit signed operand with the GOT offset for the address of
774 canonical descriptor of a function. */
775 HOWTO (R_BFIN_FUNCDESC_GOT17M4, /* type */
776 2, /* rightshift */
777 1, /* size (0 = byte, 1 = short, 2 = long) */
778 16, /* bitsize */
0a1b45a2 779 false, /* pc_relative */
48d502e1
BS
780 0, /* bitpos */
781 complain_overflow_signed, /* complain_on_overflow */
782 bfd_elf_generic_reloc, /* special_function */
783 "R_BFIN_FUNCDESC_GOT17M4", /* name */
0a1b45a2 784 false, /* partial_inplace */
07d6d2b8
AM
785 0xffff, /* src_mask */
786 0xffff, /* dst_mask */
0a1b45a2 787 false), /* pcrel_offset */
48d502e1
BS
788
789 /* The upper 16 bits of the GOT offset for the address of the
790 canonical descriptor of a function. */
791 HOWTO (R_BFIN_FUNCDESC_GOTHI, /* type */
792 0, /* rightshift */
793 1, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
0a1b45a2 795 false, /* pc_relative */
48d502e1
BS
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_BFIN_FUNCDESC_GOTHI", /* name */
0a1b45a2 800 false, /* partial_inplace */
48d502e1
BS
801 0xffff, /* src_mask */
802 0xffff, /* dst_mask */
0a1b45a2 803 false), /* pcrel_offset */
48d502e1
BS
804
805 /* The lower 16 bits of the GOT offset for the address of the
806 canonical descriptor of a function. */
807 HOWTO (R_BFIN_FUNCDESC_GOTLO, /* type */
808 0, /* rightshift */
809 1, /* size (0 = byte, 1 = short, 2 = long) */
810 16, /* bitsize */
0a1b45a2 811 false, /* pc_relative */
48d502e1
BS
812 0, /* bitpos */
813 complain_overflow_dont, /* complain_on_overflow */
814 bfd_elf_generic_reloc, /* special_function */
815 "R_BFIN_FUNCDESC_GOTLO", /* name */
0a1b45a2 816 false, /* partial_inplace */
48d502e1
BS
817 0xffff, /* src_mask */
818 0xffff, /* dst_mask */
0a1b45a2 819 false), /* pcrel_offset */
48d502e1
BS
820
821 /* The 32-bit address of the canonical descriptor of a function. */
822 HOWTO (R_BFIN_FUNCDESC_VALUE, /* type */
823 0, /* rightshift */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
825 64, /* bitsize */
0a1b45a2 826 false, /* pc_relative */
48d502e1
BS
827 0, /* bitpos */
828 complain_overflow_bitfield, /* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_BFIN_FUNCDESC_VALUE", /* name */
0a1b45a2 831 false, /* partial_inplace */
48d502e1
BS
832 0xffffffff, /* src_mask */
833 0xffffffff, /* dst_mask */
0a1b45a2 834 false), /* pcrel_offset */
48d502e1
BS
835
836 /* A 12-bit signed operand with the GOT offset for the address of
837 canonical descriptor of a function. */
838 HOWTO (R_BFIN_FUNCDESC_GOTOFF17M4, /* type */
839 2, /* rightshift */
840 1, /* size (0 = byte, 1 = short, 2 = long) */
841 16, /* bitsize */
0a1b45a2 842 false, /* pc_relative */
48d502e1
BS
843 0, /* bitpos */
844 complain_overflow_signed, /* complain_on_overflow */
845 bfd_elf_generic_reloc, /* special_function */
846 "R_BFIN_FUNCDESC_GOTOFF17M4", /* name */
0a1b45a2 847 false, /* partial_inplace */
07d6d2b8
AM
848 0xffff, /* src_mask */
849 0xffff, /* dst_mask */
0a1b45a2 850 false), /* pcrel_offset */
48d502e1
BS
851
852 /* The upper 16 bits of the GOT offset for the address of the
853 canonical descriptor of a function. */
854 HOWTO (R_BFIN_FUNCDESC_GOTOFFHI, /* type */
855 0, /* rightshift */
856 1, /* size (0 = byte, 1 = short, 2 = long) */
857 16, /* bitsize */
0a1b45a2 858 false, /* pc_relative */
48d502e1
BS
859 0, /* bitpos */
860 complain_overflow_dont, /* complain_on_overflow */
861 bfd_elf_generic_reloc, /* special_function */
862 "R_BFIN_FUNCDESC_GOTOFFHI", /* name */
0a1b45a2 863 false, /* partial_inplace */
48d502e1
BS
864 0xffff, /* src_mask */
865 0xffff, /* dst_mask */
0a1b45a2 866 false), /* pcrel_offset */
48d502e1
BS
867
868 /* The lower 16 bits of the GOT offset for the address of the
869 canonical descriptor of a function. */
870 HOWTO (R_BFIN_FUNCDESC_GOTOFFLO, /* type */
871 0, /* rightshift */
872 1, /* size (0 = byte, 1 = short, 2 = long) */
873 16, /* bitsize */
0a1b45a2 874 false, /* pc_relative */
48d502e1
BS
875 0, /* bitpos */
876 complain_overflow_dont, /* complain_on_overflow */
877 bfd_elf_generic_reloc, /* special_function */
878 "R_BFIN_FUNCDESC_GOTOFFLO", /* name */
0a1b45a2 879 false, /* partial_inplace */
48d502e1
BS
880 0xffff, /* src_mask */
881 0xffff, /* dst_mask */
0a1b45a2 882 false), /* pcrel_offset */
48d502e1
BS
883
884 /* A 12-bit signed operand with the GOT offset for the address of
885 the symbol. */
07d6d2b8 886 HOWTO (R_BFIN_GOTOFF17M4, /* type */
48d502e1
BS
887 2, /* rightshift */
888 1, /* size (0 = byte, 1 = short, 2 = long) */
889 16, /* bitsize */
0a1b45a2 890 false, /* pc_relative */
48d502e1
BS
891 0, /* bitpos */
892 complain_overflow_signed, /* complain_on_overflow */
893 bfd_elf_generic_reloc, /* special_function */
894 "R_BFIN_GOTOFF17M4", /* name */
0a1b45a2 895 false, /* partial_inplace */
07d6d2b8
AM
896 0xffff, /* src_mask */
897 0xffff, /* dst_mask */
0a1b45a2 898 false), /* pcrel_offset */
48d502e1
BS
899
900 /* The upper 16 bits of the GOT offset for the address of the
901 symbol. */
07d6d2b8 902 HOWTO (R_BFIN_GOTOFFHI, /* type */
48d502e1
BS
903 0, /* rightshift */
904 1, /* size (0 = byte, 1 = short, 2 = long) */
905 16, /* bitsize */
0a1b45a2 906 false, /* pc_relative */
48d502e1
BS
907 0, /* bitpos */
908 complain_overflow_dont, /* complain_on_overflow */
909 bfd_elf_generic_reloc, /* special_function */
910 "R_BFIN_GOTOFFHI", /* name */
0a1b45a2 911 false, /* partial_inplace */
48d502e1
BS
912 0xffff, /* src_mask */
913 0xffff, /* dst_mask */
0a1b45a2 914 false), /* pcrel_offset */
48d502e1
BS
915
916 /* The lower 16 bits of the GOT offset for the address of the
917 symbol. */
918 HOWTO (R_BFIN_GOTOFFLO, /* type */
919 0, /* rightshift */
920 1, /* size (0 = byte, 1 = short, 2 = long) */
921 16, /* bitsize */
0a1b45a2 922 false, /* pc_relative */
48d502e1
BS
923 0, /* bitpos */
924 complain_overflow_dont, /* complain_on_overflow */
925 bfd_elf_generic_reloc, /* special_function */
926 "R_BFIN_GOTOFFLO", /* name */
0a1b45a2 927 false, /* partial_inplace */
48d502e1
BS
928 0xffff, /* src_mask */
929 0xffff, /* dst_mask */
0a1b45a2 930 false), /* pcrel_offset */
0f64bb02
CM
931};
932
0f64bb02
CM
933static reloc_howto_type bfin_gnuext_howto_table [] =
934{
cb88ce9f 935 HOWTO (R_BFIN_PLTPC, /* type. */
0f64bb02
CM
936 0, /* rightshift. */
937 1, /* size (0 = byte, 1 = short, 2 = long). */
938 16, /* bitsize. */
0a1b45a2 939 false, /* pc_relative. */
0f64bb02
CM
940 0, /* bitpos. */
941 complain_overflow_bitfield, /* complain_on_overflow. */
942 bfin_pltpc_reloc, /* special_function. */
cb88ce9f 943 "R_BFIN_PLTPC", /* name. */
0a1b45a2 944 false, /* partial_inplace. */
0f64bb02
CM
945 0xffff, /* src_mask. */
946 0xffff, /* dst_mask. */
0a1b45a2 947 false), /* pcrel_offset. */
0f64bb02 948
cb88ce9f 949 HOWTO (R_BFIN_GOT, /* type. */
0f64bb02
CM
950 0, /* rightshift. */
951 1, /* size (0 = byte, 1 = short, 2 = long). */
952 16, /* bitsize. */
0a1b45a2 953 false, /* pc_relative. */
0f64bb02
CM
954 0, /* bitpos. */
955 complain_overflow_bitfield, /* complain_on_overflow. */
956 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 957 "R_BFIN_GOT", /* name. */
0a1b45a2 958 false, /* partial_inplace. */
0f64bb02
CM
959 0x7fff, /* src_mask. */
960 0x7fff, /* dst_mask. */
0a1b45a2 961 false), /* pcrel_offset. */
0f64bb02
CM
962
963/* GNU extension to record C++ vtable hierarchy. */
07d6d2b8
AM
964 HOWTO (R_BFIN_GNU_VTINHERIT, /* type. */
965 0, /* rightshift. */
966 2, /* size (0 = byte, 1 = short, 2 = long). */
967 0, /* bitsize. */
0a1b45a2 968 false, /* pc_relative. */
07d6d2b8
AM
969 0, /* bitpos. */
970 complain_overflow_dont, /* complain_on_overflow. */
971 NULL, /* special_function. */
972 "R_BFIN_GNU_VTINHERIT", /* name. */
0a1b45a2 973 false, /* partial_inplace. */
07d6d2b8
AM
974 0, /* src_mask. */
975 0, /* dst_mask. */
0a1b45a2 976 false), /* pcrel_offset. */
0f64bb02
CM
977
978/* GNU extension to record C++ vtable member usage. */
979 HOWTO (R_BFIN_GNU_VTENTRY, /* type. */
07d6d2b8
AM
980 0, /* rightshift. */
981 2, /* size (0 = byte, 1 = short, 2 = long). */
982 0, /* bitsize. */
0a1b45a2 983 false, /* pc_relative. */
07d6d2b8
AM
984 0, /* bitpos. */
985 complain_overflow_dont, /* complain_on_overflow. */
986 _bfd_elf_rel_vtable_reloc_fn, /* special_function. */
987 "R_BFIN_GNU_VTENTRY", /* name. */
0a1b45a2 988 false, /* partial_inplace. */
07d6d2b8
AM
989 0, /* src_mask. */
990 0, /* dst_mask. */
0a1b45a2 991 false) /* pcrel_offset. */
0f64bb02
CM
992};
993
994struct bfin_reloc_map
995{
07d6d2b8 996 bfd_reloc_code_real_type bfd_reloc_val;
0f64bb02
CM
997 unsigned int bfin_reloc_val;
998};
999
1000static const struct bfin_reloc_map bfin_reloc_map [] =
1001{
cb88ce9f
BS
1002 { BFD_RELOC_NONE, R_BFIN_UNUSED0 },
1003 { BFD_RELOC_BFIN_5_PCREL, R_BFIN_PCREL5M2 },
1004 { BFD_RELOC_NONE, R_BFIN_UNUSED1 },
1005 { BFD_RELOC_BFIN_10_PCREL, R_BFIN_PCREL10 },
1006 { BFD_RELOC_BFIN_12_PCREL_JUMP, R_BFIN_PCREL12_JUMP },
1007 { BFD_RELOC_BFIN_16_IMM, R_BFIN_RIMM16 },
1008 { BFD_RELOC_BFIN_16_LOW, R_BFIN_LUIMM16 },
1009 { BFD_RELOC_BFIN_16_HIGH, R_BFIN_HUIMM16 },
1010 { BFD_RELOC_BFIN_12_PCREL_JUMP_S, R_BFIN_PCREL12_JUMP_S },
1011 { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
1012 { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
1013 { BFD_RELOC_BFIN_24_PCREL_JUMP_L, R_BFIN_PCREL24_JUMP_L },
1014 { BFD_RELOC_NONE, R_BFIN_UNUSEDB },
1015 { BFD_RELOC_NONE, R_BFIN_UNUSEDC },
1016 { BFD_RELOC_BFIN_24_PCREL_CALL_X, R_BFIN_PCREL24_CALL_X },
1017 { BFD_RELOC_8, R_BFIN_BYTE_DATA },
1018 { BFD_RELOC_16, R_BFIN_BYTE2_DATA },
1019 { BFD_RELOC_32, R_BFIN_BYTE4_DATA },
1020 { BFD_RELOC_BFIN_11_PCREL, R_BFIN_PCREL11 },
1021 { BFD_RELOC_BFIN_GOT, R_BFIN_GOT },
1022 { BFD_RELOC_BFIN_PLTPC, R_BFIN_PLTPC },
48d502e1
BS
1023
1024 { BFD_RELOC_BFIN_GOT17M4, R_BFIN_GOT17M4 },
1025 { BFD_RELOC_BFIN_GOTHI, R_BFIN_GOTHI },
1026 { BFD_RELOC_BFIN_GOTLO, R_BFIN_GOTLO },
1027 { BFD_RELOC_BFIN_FUNCDESC, R_BFIN_FUNCDESC },
1028 { BFD_RELOC_BFIN_FUNCDESC_GOT17M4, R_BFIN_FUNCDESC_GOT17M4 },
1029 { BFD_RELOC_BFIN_FUNCDESC_GOTHI, R_BFIN_FUNCDESC_GOTHI },
1030 { BFD_RELOC_BFIN_FUNCDESC_GOTLO, R_BFIN_FUNCDESC_GOTLO },
1031 { BFD_RELOC_BFIN_FUNCDESC_VALUE, R_BFIN_FUNCDESC_VALUE },
1032 { BFD_RELOC_BFIN_FUNCDESC_GOTOFF17M4, R_BFIN_FUNCDESC_GOTOFF17M4 },
1033 { BFD_RELOC_BFIN_FUNCDESC_GOTOFFHI, R_BFIN_FUNCDESC_GOTOFFHI },
1034 { BFD_RELOC_BFIN_FUNCDESC_GOTOFFLO, R_BFIN_FUNCDESC_GOTOFFLO },
1035 { BFD_RELOC_BFIN_GOTOFF17M4, R_BFIN_GOTOFF17M4 },
1036 { BFD_RELOC_BFIN_GOTOFFHI, R_BFIN_GOTOFFHI },
1037 { BFD_RELOC_BFIN_GOTOFFLO, R_BFIN_GOTOFFLO },
1038
0f64bb02
CM
1039 { BFD_RELOC_VTABLE_INHERIT, R_BFIN_GNU_VTINHERIT },
1040 { BFD_RELOC_VTABLE_ENTRY, R_BFIN_GNU_VTENTRY },
0f64bb02
CM
1041};
1042
1043
0a1b45a2 1044static bool
f3185997 1045bfin_info_to_howto (bfd *abfd,
07d6d2b8
AM
1046 arelent *cache_ptr,
1047 Elf_Internal_Rela *dst)
0f64bb02
CM
1048{
1049 unsigned int r_type;
1050
1051 r_type = ELF32_R_TYPE (dst->r_info);
1052
1053 if (r_type <= BFIN_RELOC_MAX)
1054 cache_ptr->howto = &bfin_howto_table [r_type];
1055
0f64bb02
CM
1056 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1057 cache_ptr->howto = &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1058
1059 else
f3185997
NC
1060 {
1061 /* xgettext:c-format */
1062 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1063 abfd, r_type);
1064 bfd_set_error (bfd_error_bad_value);
0a1b45a2 1065 return false;
f3185997
NC
1066 }
1067
0a1b45a2 1068 return true;
0f64bb02 1069}
157090f7 1070
0f64bb02
CM
1071/* Given a BFD reloc type, return the howto. */
1072static reloc_howto_type *
1073bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
1074 bfd_reloc_code_real_type code)
1075{
1076 unsigned int i;
0ba38529 1077 unsigned int r_type = (unsigned int) -1;
0f64bb02 1078
0ba38529 1079 for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); i--;)
0f64bb02
CM
1080 if (bfin_reloc_map[i].bfd_reloc_val == code)
1081 r_type = bfin_reloc_map[i].bfin_reloc_val;
1082
0ba38529 1083 if (r_type <= BFIN_RELOC_MAX)
0f64bb02
CM
1084 return &bfin_howto_table [r_type];
1085
0f64bb02
CM
1086 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1087 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1088
1089 return (reloc_howto_type *) NULL;
157090f7 1090}
0f64bb02 1091
157090f7
AM
1092static reloc_howto_type *
1093bfin_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1094 const char *r_name)
1095{
1096 unsigned int i;
1097
1098 for (i = 0;
1099 i < (sizeof (bfin_howto_table)
1100 / sizeof (bfin_howto_table[0]));
1101 i++)
1102 if (bfin_howto_table[i].name != NULL
1103 && strcasecmp (bfin_howto_table[i].name, r_name) == 0)
1104 return &bfin_howto_table[i];
1105
1106 for (i = 0;
1107 i < (sizeof (bfin_gnuext_howto_table)
1108 / sizeof (bfin_gnuext_howto_table[0]));
1109 i++)
1110 if (bfin_gnuext_howto_table[i].name != NULL
1111 && strcasecmp (bfin_gnuext_howto_table[i].name, r_name) == 0)
1112 return &bfin_gnuext_howto_table[i];
1113
1114 return NULL;
0f64bb02 1115}
157090f7 1116
0f64bb02
CM
1117/* Given a bfin relocation type, return the howto. */
1118static reloc_howto_type *
1119bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
2c3fc389 1120 unsigned int r_type)
0f64bb02
CM
1121{
1122 if (r_type <= BFIN_RELOC_MAX)
1123 return &bfin_howto_table [r_type];
1124
0f64bb02
CM
1125 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1126 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1127
1128 return (reloc_howto_type *) NULL;
0f64bb02
CM
1129}
1130
781303ce 1131/* Set by ld emulation if --code-in-l1. */
0a1b45a2 1132bool elf32_bfin_code_in_l1 = 0;
781303ce
MF
1133
1134/* Set by ld emulation if --data-in-l1. */
0a1b45a2 1135bool elf32_bfin_data_in_l1 = 0;
781303ce 1136
0a1b45a2 1137static bool
cc364be6 1138elf32_bfin_final_write_processing (bfd *abfd)
781303ce
MF
1139{
1140 if (elf32_bfin_code_in_l1)
1141 elf_elfheader (abfd)->e_flags |= EF_BFIN_CODE_IN_L1;
1142 if (elf32_bfin_data_in_l1)
1143 elf_elfheader (abfd)->e_flags |= EF_BFIN_DATA_IN_L1;
cc364be6 1144 return _bfd_elf_final_write_processing (abfd);
781303ce
MF
1145}
1146
0f64bb02
CM
1147/* Return TRUE if the name is a local label.
1148 bfin local labels begin with L$. */
0a1b45a2 1149static bool
2c3fc389 1150bfin_is_local_label_name (bfd *abfd, const char *label)
0f64bb02
CM
1151{
1152 if (label[0] == 'L' && label[1] == '$' )
0a1b45a2 1153 return true;
0f64bb02
CM
1154
1155 return _bfd_elf_is_local_label_name (abfd, label);
1156}
c96a8570
BS
1157\f
1158/* Look through the relocs for a section during the first phase, and
1159 allocate space in the global offset table or procedure linkage
1160 table. */
0f64bb02 1161
0a1b45a2 1162static bool
c96a8570
BS
1163bfin_check_relocs (bfd * abfd,
1164 struct bfd_link_info *info,
1165 asection *sec,
07d6d2b8 1166 const Elf_Internal_Rela *relocs)
48d502e1 1167{
c96a8570
BS
1168 bfd *dynobj;
1169 Elf_Internal_Shdr *symtab_hdr;
1170 struct elf_link_hash_entry **sym_hashes;
1171 bfd_signed_vma *local_got_refcounts;
1172 const Elf_Internal_Rela *rel;
1173 const Elf_Internal_Rela *rel_end;
48d502e1 1174 asection *sgot;
c96a8570 1175 asection *srelgot;
2c3fc389 1176
0e1862bb 1177 if (bfd_link_relocatable (info))
0a1b45a2 1178 return true;
48d502e1 1179
c96a8570
BS
1180 dynobj = elf_hash_table (info)->dynobj;
1181 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1182 sym_hashes = elf_sym_hashes (abfd);
1183 local_got_refcounts = elf_local_got_refcounts (abfd);
48d502e1 1184
c96a8570
BS
1185 sgot = NULL;
1186 srelgot = NULL;
48d502e1 1187
c96a8570
BS
1188 rel_end = relocs + sec->reloc_count;
1189 for (rel = relocs; rel < rel_end; rel++)
48d502e1 1190 {
c96a8570
BS
1191 unsigned long r_symndx;
1192 struct elf_link_hash_entry *h;
48d502e1 1193
c96a8570
BS
1194 r_symndx = ELF32_R_SYM (rel->r_info);
1195 if (r_symndx < symtab_hdr->sh_info)
1196 h = NULL;
1197 else
81fbe831
AM
1198 {
1199 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
d4e57b87
L
1200 while (h->root.type == bfd_link_hash_indirect
1201 || h->root.type == bfd_link_hash_warning)
1202 h = (struct elf_link_hash_entry *)h->root.u.i.link;
81fbe831 1203 }
48d502e1 1204
c96a8570
BS
1205 switch (ELF32_R_TYPE (rel->r_info))
1206 {
1207 /* This relocation describes the C++ object vtable hierarchy.
07d6d2b8
AM
1208 Reconstruct it for later use during GC. */
1209 case R_BFIN_GNU_VTINHERIT:
1210 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
0a1b45a2 1211 return false;
07d6d2b8
AM
1212 break;
1213
1214 /* This relocation describes which C++ vtable entries
1215 are actually used. Record for later use during GC. */
1216 case R_BFIN_GNU_VTENTRY:
a0ea3a14 1217 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
0a1b45a2 1218 return false;
07d6d2b8 1219 break;
48d502e1 1220
cb88ce9f 1221 case R_BFIN_GOT:
c96a8570
BS
1222 if (h != NULL
1223 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1224 break;
1225 /* Fall through. */
48d502e1 1226
c96a8570
BS
1227 if (dynobj == NULL)
1228 {
1229 /* Create the .got section. */
1230 elf_hash_table (info)->dynobj = dynobj = abfd;
1231 if (!_bfd_elf_create_got_section (dynobj, info))
0a1b45a2 1232 return false;
c96a8570 1233 }
48d502e1 1234
ce558b89
AM
1235 sgot = elf_hash_table (info)->sgot;
1236 srelgot = elf_hash_table (info)->srelgot;
1237 BFD_ASSERT (sgot != NULL);
48d502e1 1238
c96a8570
BS
1239 if (h != NULL)
1240 {
1241 if (h->got.refcount == 0)
1242 {
1243 /* Make sure this symbol is output as a dynamic symbol. */
1244 if (h->dynindx == -1 && !h->forced_local)
1245 {
1246 if (!bfd_elf_link_record_dynamic_symbol (info, h))
0a1b45a2 1247 return false;
c96a8570 1248 }
48d502e1 1249
c96a8570
BS
1250 /* Allocate space in the .got section. */
1251 sgot->size += 4;
1252 /* Allocate relocation space. */
1253 srelgot->size += sizeof (Elf32_External_Rela);
1254 }
1255 h->got.refcount++;
1256 }
1257 else
1258 {
1259 /* This is a global offset table entry for a local symbol. */
1260 if (local_got_refcounts == NULL)
1261 {
1262 bfd_size_type size;
48d502e1 1263
c96a8570
BS
1264 size = symtab_hdr->sh_info;
1265 size *= sizeof (bfd_signed_vma);
1266 local_got_refcounts = ((bfd_signed_vma *)
1267 bfd_zalloc (abfd, size));
1268 if (local_got_refcounts == NULL)
0a1b45a2 1269 return false;
c96a8570
BS
1270 elf_local_got_refcounts (abfd) = local_got_refcounts;
1271 }
1272 if (local_got_refcounts[r_symndx] == 0)
1273 {
1274 sgot->size += 4;
0e1862bb 1275 if (bfd_link_pic (info))
c96a8570
BS
1276 {
1277 /* If we are generating a shared object, we need to
07d6d2b8
AM
1278 output a R_68K_RELATIVE reloc so that the dynamic
1279 linker can adjust this GOT entry. */
c96a8570
BS
1280 srelgot->size += sizeof (Elf32_External_Rela);
1281 }
1282 }
1283 local_got_refcounts[r_symndx]++;
1284 }
1285 break;
48d502e1 1286
c96a8570
BS
1287 default:
1288 break;
1289 }
1290 }
1291
0a1b45a2 1292 return true;
48d502e1
BS
1293}
1294
c96a8570 1295static enum elf_reloc_type_class
7e612e98
AM
1296elf32_bfin_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1297 const asection *rel_sec ATTRIBUTE_UNUSED,
1298 const Elf_Internal_Rela * rela)
48d502e1 1299{
c96a8570
BS
1300 switch ((int) ELF32_R_TYPE (rela->r_info))
1301 {
1302 default:
1303 return reloc_class_normal;
1304 }
1305}
1306\f
1307static bfd_reloc_status_type
1308bfin_final_link_relocate (Elf_Internal_Rela *rel, reloc_howto_type *howto,
1309 bfd *input_bfd, asection *input_section,
1310 bfd_byte *contents, bfd_vma address,
1311 bfd_vma value, bfd_vma addend)
1312{
1313 int r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 1314
cb88ce9f 1315 if (r_type == R_BFIN_PCREL24 || r_type == R_BFIN_PCREL24_JUMP_L)
c96a8570
BS
1316 {
1317 bfd_reloc_status_type r = bfd_reloc_ok;
1318 bfd_vma x;
48d502e1 1319
c96a8570
BS
1320 if (address > bfd_get_section_limit (input_bfd, input_section))
1321 return bfd_reloc_outofrange;
48d502e1 1322
c96a8570 1323 value += addend;
48d502e1 1324
c96a8570
BS
1325 /* Perform usual pc-relative correction. */
1326 value -= input_section->output_section->vma + input_section->output_offset;
1327 value -= address;
48d502e1 1328
c96a8570
BS
1329 /* We are getting reloc_entry->address 2 byte off from
1330 the start of instruction. Assuming absolute postion
1331 of the reloc data. But, following code had been written assuming
1332 reloc address is starting at begining of instruction.
1333 To compensate that I have increased the value of
1334 relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
48d502e1 1335
c96a8570
BS
1336 value += 2;
1337 address -= 2;
48d502e1 1338
c96a8570
BS
1339 if ((value & 0xFF000000) != 0
1340 && (value & 0xFF000000) != 0xFF000000)
1341 r = bfd_reloc_overflow;
48d502e1 1342
c96a8570 1343 value >>= 1;
48d502e1 1344
c96a8570
BS
1345 x = bfd_get_16 (input_bfd, contents + address);
1346 x = (x & 0xff00) | ((value >> 16) & 0xff);
1347 bfd_put_16 (input_bfd, x, contents + address);
48d502e1 1348
c96a8570
BS
1349 x = bfd_get_16 (input_bfd, contents + address + 2);
1350 x = value & 0xFFFF;
1351 bfd_put_16 (input_bfd, x, contents + address + 2);
1352 return r;
1353 }
48d502e1 1354
c96a8570
BS
1355 return _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1356 rel->r_offset, value, addend);
48d502e1 1357
48d502e1
BS
1358}
1359
0f684201 1360static int
c96a8570
BS
1361bfin_relocate_section (bfd * output_bfd,
1362 struct bfd_link_info *info,
1363 bfd * input_bfd,
1364 asection * input_section,
1365 bfd_byte * contents,
1366 Elf_Internal_Rela * relocs,
1367 Elf_Internal_Sym * local_syms,
1368 asection ** local_sections)
48d502e1 1369{
c96a8570
BS
1370 bfd *dynobj;
1371 Elf_Internal_Shdr *symtab_hdr;
1372 struct elf_link_hash_entry **sym_hashes;
1373 bfd_vma *local_got_offsets;
1374 asection *sgot;
c96a8570
BS
1375 Elf_Internal_Rela *rel;
1376 Elf_Internal_Rela *relend;
1377 int i = 0;
48d502e1 1378
c96a8570
BS
1379 dynobj = elf_hash_table (info)->dynobj;
1380 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1381 sym_hashes = elf_sym_hashes (input_bfd);
1382 local_got_offsets = elf_local_got_offsets (input_bfd);
48d502e1 1383
c96a8570 1384 sgot = NULL;
48d502e1 1385
c96a8570
BS
1386 rel = relocs;
1387 relend = relocs + input_section->reloc_count;
1388 for (; rel < relend; rel++, i++)
1389 {
1390 int r_type;
1391 reloc_howto_type *howto;
1392 unsigned long r_symndx;
1393 struct elf_link_hash_entry *h;
1394 Elf_Internal_Sym *sym;
1395 asection *sec;
1396 bfd_vma relocation = 0;
0a1b45a2 1397 bool unresolved_reloc;
c96a8570
BS
1398 bfd_reloc_status_type r;
1399 bfd_vma address;
48d502e1 1400
c96a8570
BS
1401 r_type = ELF32_R_TYPE (rel->r_info);
1402 if (r_type < 0 || r_type >= 243)
1403 {
1404 bfd_set_error (bfd_error_bad_value);
0a1b45a2 1405 return false;
c96a8570 1406 }
48d502e1 1407
c96a8570 1408 if (r_type == R_BFIN_GNU_VTENTRY
07d6d2b8 1409 || r_type == R_BFIN_GNU_VTINHERIT)
c96a8570 1410 continue;
48d502e1 1411
c96a8570
BS
1412 howto = bfin_reloc_type_lookup (input_bfd, r_type);
1413 if (howto == NULL)
1414 {
1415 bfd_set_error (bfd_error_bad_value);
0a1b45a2 1416 return false;
c96a8570
BS
1417 }
1418 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1 1419
c96a8570
BS
1420 h = NULL;
1421 sym = NULL;
1422 sec = NULL;
0a1b45a2 1423 unresolved_reloc = false;
48d502e1 1424
c96a8570
BS
1425 if (r_symndx < symtab_hdr->sh_info)
1426 {
1427 sym = local_syms + r_symndx;
1428 sec = local_sections[r_symndx];
1429 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1430 }
1431 else
1432 {
0a1b45a2 1433 bool warned, ignored;
48d502e1 1434
c96a8570
BS
1435 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1436 r_symndx, symtab_hdr, sym_hashes,
1437 h, sec, relocation,
62d887d4 1438 unresolved_reloc, warned, ignored);
c96a8570 1439 }
48d502e1 1440
dbaa2011 1441 if (sec != NULL && discarded_section (sec))
e4067dbb 1442 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 1443 rel, 1, relend, howto, 0, contents);
48d502e1 1444
0e1862bb 1445 if (bfd_link_relocatable (info))
c96a8570 1446 continue;
48d502e1 1447
c96a8570 1448 address = rel->r_offset;
48d502e1 1449
c96a8570
BS
1450 /* Then, process normally. */
1451 switch (r_type)
1452 {
1453 case R_BFIN_GNU_VTINHERIT:
1454 case R_BFIN_GNU_VTENTRY:
1455 return bfd_reloc_ok;
48d502e1 1456
cb88ce9f 1457 case R_BFIN_GOT:
c96a8570
BS
1458 /* Relocation is to the address of the entry for this symbol
1459 in the global offset table. */
1460 if (h != NULL
1461 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1462 goto do_default;
1463 /* Fall through. */
1464 /* Relocation is the offset of the entry for this symbol in
1465 the global offset table. */
48d502e1 1466
c96a8570
BS
1467 {
1468 bfd_vma off;
48d502e1 1469
ce558b89 1470 if (dynobj == NULL)
c96a8570 1471 {
ce558b89
AM
1472 /* Create the .got section. */
1473 elf_hash_table (info)->dynobj = dynobj = output_bfd;
1474 if (!_bfd_elf_create_got_section (dynobj, info))
0a1b45a2 1475 return false;
c96a8570 1476 }
48d502e1 1477
ce558b89
AM
1478 sgot = elf_hash_table (info)->sgot;
1479 BFD_ASSERT (sgot != NULL);
1480
c96a8570
BS
1481 if (h != NULL)
1482 {
0a1b45a2 1483 bool dyn;
48d502e1 1484
c96a8570
BS
1485 off = h->got.offset;
1486 BFD_ASSERT (off != (bfd_vma) - 1);
1487 dyn = elf_hash_table (info)->dynamic_sections_created;
48d502e1 1488
0e1862bb
L
1489 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
1490 bfd_link_pic (info),
1491 h)
1492 || (bfd_link_pic (info)
c96a8570
BS
1493 && (info->symbolic
1494 || h->dynindx == -1
1495 || h->forced_local)
1496 && h->def_regular))
1497 {
1498 /* This is actually a static link, or it is a
1499 -Bsymbolic link and the symbol is defined
1500 locally, or the symbol was forced to be local
1501 because of a version file.. We must initialize
1502 this entry in the global offset table. Since
1503 the offset must always be a multiple of 4, we
1504 use the least significant bit to record whether
1505 we have initialized it already.
48d502e1 1506
c96a8570
BS
1507 When doing a dynamic link, we create a .rela.got
1508 relocation entry to initialize the value. This
1509 is done in the finish_dynamic_symbol routine. */
1510 if ((off & 1) != 0)
1511 off &= ~1;
1512 else
1513 {
1514 bfd_put_32 (output_bfd, relocation,
1515 sgot->contents + off);
1516 h->got.offset |= 1;
1517 }
1518 }
1519 else
0a1b45a2 1520 unresolved_reloc = false;
c96a8570
BS
1521 }
1522 else
1523 {
1524 BFD_ASSERT (local_got_offsets != NULL);
1525 off = local_got_offsets[r_symndx];
1526 BFD_ASSERT (off != (bfd_vma) - 1);
48d502e1 1527
c96a8570
BS
1528 /* The offset must always be a multiple of 4. We use
1529 the least significant bit to record whether we have
1530 already generated the necessary reloc. */
1531 if ((off & 1) != 0)
1532 off &= ~1;
1533 else
1534 {
1535 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
48d502e1 1536
0e1862bb 1537 if (bfd_link_pic (info))
c96a8570
BS
1538 {
1539 asection *s;
1540 Elf_Internal_Rela outrel;
1541 bfd_byte *loc;
48d502e1 1542
ce558b89 1543 s = elf_hash_table (info)->srelgot;
c96a8570 1544 BFD_ASSERT (s != NULL);
48d502e1 1545
c96a8570
BS
1546 outrel.r_offset = (sgot->output_section->vma
1547 + sgot->output_offset + off);
1548 outrel.r_info =
cb88ce9f 1549 ELF32_R_INFO (0, R_BFIN_PCREL24);
c96a8570
BS
1550 outrel.r_addend = relocation;
1551 loc = s->contents;
1552 loc +=
1553 s->reloc_count++ * sizeof (Elf32_External_Rela);
1554 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1555 }
48d502e1 1556
c96a8570
BS
1557 local_got_offsets[r_symndx] |= 1;
1558 }
1559 }
48d502e1 1560
c96a8570
BS
1561 relocation = sgot->output_offset + off;
1562 rel->r_addend = 0;
07d6d2b8
AM
1563 /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */
1564 relocation /= 4;
c96a8570
BS
1565 }
1566 goto do_default;
1567
1568 default:
1569 do_default:
1570 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
1571 contents, address,
1572 relocation, rel->r_addend);
1573
1574 break;
48d502e1
BS
1575 }
1576
c96a8570 1577 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
07d6d2b8
AM
1578 because such sections are not SEC_ALLOC and thus ld.so will
1579 not process them. */
c96a8570 1580 if (unresolved_reloc
1d5316ab
AM
1581 && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic)
1582 && _bfd_elf_section_offset (output_bfd, info, input_section,
1583 rel->r_offset) != (bfd_vma) -1)
48d502e1 1584 {
4eca0228 1585 _bfd_error_handler
695344c0 1586 /* xgettext:c-format */
2dcf00ce
AM
1587 (_("%pB(%pA+%#" PRIx64 "): "
1588 "unresolvable relocation against symbol `%s'"),
1589 input_bfd, input_section, (uint64_t) rel->r_offset,
1590 h->root.root.string);
0a1b45a2 1591 return false;
48d502e1 1592 }
48d502e1 1593
c96a8570 1594 if (r != bfd_reloc_ok)
48d502e1 1595 {
c96a8570
BS
1596 const char *name;
1597
1598 if (h != NULL)
1599 name = h->root.root.string;
1600 else
48d502e1 1601 {
c96a8570
BS
1602 name = bfd_elf_string_from_elf_section (input_bfd,
1603 symtab_hdr->sh_link,
1604 sym->st_name);
1605 if (name == NULL)
0a1b45a2 1606 return false;
c96a8570 1607 if (*name == '\0')
fd361982 1608 name = bfd_section_name (sec);
48d502e1 1609 }
c96a8570
BS
1610
1611 if (r == bfd_reloc_overflow)
1a72702b
AM
1612 (*info->callbacks->reloc_overflow)
1613 (info, (h ? &h->root : NULL), name, howto->name,
1614 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
48d502e1
BS
1615 else
1616 {
4eca0228 1617 _bfd_error_handler
695344c0 1618 /* xgettext:c-format */
2dcf00ce
AM
1619 (_("%pB(%pA+%#" PRIx64 "): reloc against `%s': error %d"),
1620 input_bfd, input_section, (uint64_t) rel->r_offset,
1621 name, (int) r);
0a1b45a2 1622 return false;
48d502e1 1623 }
48d502e1 1624 }
48d502e1
BS
1625 }
1626
0a1b45a2 1627 return true;
c96a8570 1628}
48d502e1 1629
c96a8570
BS
1630static asection *
1631bfin_gc_mark_hook (asection * sec,
1632 struct bfd_link_info *info,
1633 Elf_Internal_Rela * rel,
1634 struct elf_link_hash_entry *h,
07d6d2b8 1635 Elf_Internal_Sym * sym)
c96a8570
BS
1636{
1637 if (h != NULL)
1638 switch (ELF32_R_TYPE (rel->r_info))
1639 {
1640 case R_BFIN_GNU_VTINHERIT:
1641 case R_BFIN_GNU_VTENTRY:
1642 return NULL;
1643 }
48d502e1 1644
c96a8570
BS
1645 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1646}
c96a8570 1647\f
6d00b590
AM
1648extern const bfd_target bfin_elf32_fdpic_vec;
1649#define IS_FDPIC(bfd) ((bfd)->xvec == &bfin_elf32_fdpic_vec)
0f64bb02 1650
4dfe6ac6
NC
1651/* An extension of the elf hash table data structure,
1652 containing some additional Blackfin-specific data. */
c96a8570 1653struct bfinfdpic_elf_link_hash_table
c35e54f4 1654{
c96a8570 1655 struct elf_link_hash_table elf;
c35e54f4 1656
c96a8570
BS
1657 /* A pointer to the .rofixup section. */
1658 asection *sgotfixup;
c96a8570
BS
1659 /* GOT base offset. */
1660 bfd_vma got0;
1661 /* Location of the first non-lazy PLT entry, i.e., the number of
1662 bytes taken by lazy PLT entries. */
1663 bfd_vma plt0;
1664 /* A hash table holding information about which symbols were
1665 referenced with which PIC-related relocations. */
1666 struct htab *relocs_info;
6a9adeca
BS
1667 /* Summary reloc information collected by
1668 _bfinfdpic_count_got_plt_entries. */
1669 struct _bfinfdpic_dynamic_got_info *g;
c96a8570 1670};
c35e54f4 1671
c96a8570 1672/* Get the Blackfin ELF linker hash table from a link_info structure. */
c35e54f4 1673
0f55320b
AM
1674#define bfinfdpic_hash_table(p) \
1675 ((is_elf_hash_table ((p)->hash) \
1676 && elf_hash_table_id (elf_hash_table (p)) == BFIN_ELF_DATA) \
1677 ? (struct bfinfdpic_elf_link_hash_table *) (p)->hash : NULL)
c35e54f4 1678
c96a8570 1679#define bfinfdpic_got_section(info) \
ce558b89 1680 (bfinfdpic_hash_table (info)->elf.sgot)
c96a8570 1681#define bfinfdpic_gotrel_section(info) \
ce558b89 1682 (bfinfdpic_hash_table (info)->elf.srelgot)
c96a8570
BS
1683#define bfinfdpic_gotfixup_section(info) \
1684 (bfinfdpic_hash_table (info)->sgotfixup)
1685#define bfinfdpic_plt_section(info) \
ce558b89 1686 (bfinfdpic_hash_table (info)->elf.splt)
c96a8570 1687#define bfinfdpic_pltrel_section(info) \
ce558b89 1688 (bfinfdpic_hash_table (info)->elf.srelplt)
c96a8570
BS
1689#define bfinfdpic_relocs_info(info) \
1690 (bfinfdpic_hash_table (info)->relocs_info)
1691#define bfinfdpic_got_initial_offset(info) \
1692 (bfinfdpic_hash_table (info)->got0)
1693#define bfinfdpic_plt_initial_offset(info) \
1694 (bfinfdpic_hash_table (info)->plt0)
6a9adeca
BS
1695#define bfinfdpic_dynamic_got_plt_info(info) \
1696 (bfinfdpic_hash_table (info)->g)
c35e54f4 1697
c96a8570
BS
1698/* The name of the dynamic interpreter. This is put in the .interp
1699 section. */
c35e54f4 1700
c96a8570 1701#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
c35e54f4 1702
c96a8570 1703#define DEFAULT_STACK_SIZE 0x20000
c35e54f4 1704
c96a8570
BS
1705/* This structure is used to collect the number of entries present in
1706 each addressable range of the got. */
1707struct _bfinfdpic_dynamic_got_info
1708{
1709 /* Several bits of information about the current link. */
1710 struct bfd_link_info *info;
1711 /* Total size needed for GOT entries within the 18- or 32-bit
1712 ranges. */
1713 bfd_vma got17m4, gothilo;
1714 /* Total size needed for function descriptor entries within the 18-
1715 or 32-bit ranges. */
1716 bfd_vma fd17m4, fdhilo;
1717 /* Total size needed function descriptor entries referenced in PLT
1718 entries, that would be profitable to place in offsets close to
1719 the PIC register. */
1720 bfd_vma fdplt;
1721 /* Total size needed by lazy PLT entries. */
1722 bfd_vma lzplt;
1723 /* Number of relocations carried over from input object files. */
1724 unsigned long relocs;
1725 /* Number of fixups introduced by relocations in input object files. */
1726 unsigned long fixups;
1727};
c35e54f4 1728
c96a8570 1729/* Create a Blackfin ELF linker hash table. */
c35e54f4 1730
c96a8570
BS
1731static struct bfd_link_hash_table *
1732bfinfdpic_elf_link_hash_table_create (bfd *abfd)
1733{
1734 struct bfinfdpic_elf_link_hash_table *ret;
986f0783 1735 size_t amt = sizeof (struct bfinfdpic_elf_link_hash_table);
c35e54f4 1736
22cdc249 1737 ret = bfd_zmalloc (amt);
c96a8570
BS
1738 if (ret == NULL)
1739 return NULL;
c35e54f4 1740
c96a8570
BS
1741 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1742 _bfd_elf_link_hash_newfunc,
4dfe6ac6
NC
1743 sizeof (struct elf_link_hash_entry),
1744 BFIN_ELF_DATA))
c96a8570
BS
1745 {
1746 free (ret);
1747 return NULL;
1748 }
c35e54f4 1749
c96a8570
BS
1750 return &ret->elf.root;
1751}
48d502e1 1752
c96a8570
BS
1753/* Decide whether a reference to a symbol can be resolved locally or
1754 not. If the symbol is protected, we want the local address, but
1755 its function descriptor must be assigned by the dynamic linker. */
1756#define BFINFDPIC_SYM_LOCAL(INFO, H) \
1757 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1758 || ! elf_hash_table (INFO)->dynamic_sections_created)
1759#define BFINFDPIC_FUNCDESC_LOCAL(INFO, H) \
1760 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
48d502e1 1761
c96a8570
BS
1762/* This structure collects information on what kind of GOT, PLT or
1763 function descriptors are required by relocations that reference a
1764 certain symbol. */
1765struct bfinfdpic_relocs_info
1766{
1767 /* The index of the symbol, as stored in the relocation r_info, if
1768 we have a local symbol; -1 otherwise. */
1769 long symndx;
1770 union
1771 {
1772 /* The input bfd in which the symbol is defined, if it's a local
1773 symbol. */
1774 bfd *abfd;
1775 /* If symndx == -1, the hash table entry corresponding to a global
1776 symbol (even if it turns out to bind locally, in which case it
1777 should ideally be replaced with section's symndx + addend). */
1778 struct elf_link_hash_entry *h;
1779 } d;
1780 /* The addend of the relocation that references the symbol. */
1781 bfd_vma addend;
48d502e1 1782
c96a8570
BS
1783 /* The fields above are used to identify an entry. The fields below
1784 contain information on how an entry is used and, later on, which
1785 locations it was assigned. */
1786 /* The following 2 fields record whether the symbol+addend above was
1787 ever referenced with a GOT relocation. The 17M4 suffix indicates a
1788 GOT17M4 relocation; hilo is used for GOTLO/GOTHI pairs. */
1789 unsigned got17m4;
1790 unsigned gothilo;
1791 /* Whether a FUNCDESC relocation references symbol+addend. */
1792 unsigned fd;
1793 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1794 unsigned fdgot17m4;
1795 unsigned fdgothilo;
1796 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1797 unsigned fdgoff17m4;
1798 unsigned fdgoffhilo;
1799 /* Whether symbol+addend is referenced with GOTOFF17M4, GOTOFFLO or
1800 GOTOFFHI relocations. The addend doesn't really matter, since we
1801 envision that this will only be used to check whether the symbol
1802 is mapped to the same segment as the got. */
1803 unsigned gotoff;
1804 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1805 unsigned call;
1806 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1807 relocation. */
1808 unsigned sym;
1809 /* Whether we need a PLT entry for a symbol. Should be implied by
1810 something like:
1811 (call && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)) */
1812 unsigned plt:1;
1813 /* Whether a function descriptor should be created in this link unit
1814 for symbol+addend. Should be implied by something like:
1815 (plt || fdgotoff17m4 || fdgotofflohi
1816 || ((fd || fdgot17m4 || fdgothilo)
07d6d2b8 1817 && (symndx != -1 || BFINFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
c96a8570
BS
1818 unsigned privfd:1;
1819 /* Whether a lazy PLT entry is needed for this symbol+addend.
1820 Should be implied by something like:
1821 (privfd && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)
1822 && ! (info->flags & DF_BIND_NOW)) */
1823 unsigned lazyplt:1;
1824 /* Whether we've already emitted GOT relocations and PLT entries as
1825 needed for this symbol. */
1826 unsigned done:1;
48d502e1 1827
cb88ce9f 1828 /* The number of R_BFIN_BYTE4_DATA, R_BFIN_FUNCDESC and R_BFIN_FUNCDESC_VALUE
c96a8570
BS
1829 relocations referencing the symbol. */
1830 unsigned relocs32, relocsfd, relocsfdv;
48d502e1 1831
c96a8570
BS
1832 /* The number of .rofixups entries and dynamic relocations allocated
1833 for this symbol, minus any that might have already been used. */
1834 unsigned fixups, dynrelocs;
48d502e1 1835
c96a8570
BS
1836 /* The offsets of the GOT entries assigned to symbol+addend, to the
1837 function descriptor's address, and to a function descriptor,
1838 respectively. Should be zero if unassigned. The offsets are
1839 counted from the value that will be assigned to the PIC register,
1840 not from the beginning of the .got section. */
1841 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1842 /* The offsets of the PLT entries assigned to symbol+addend,
1843 non-lazy and lazy, respectively. If unassigned, should be
1844 (bfd_vma)-1. */
1845 bfd_vma plt_entry, lzplt_entry;
1846};
48d502e1 1847
c96a8570
BS
1848/* Compute a hash with the key fields of an bfinfdpic_relocs_info entry. */
1849static hashval_t
1850bfinfdpic_relocs_info_hash (const void *entry_)
1851{
1852 const struct bfinfdpic_relocs_info *entry = entry_;
48d502e1 1853
c96a8570
BS
1854 return (entry->symndx == -1
1855 ? (long) entry->d.h->root.root.hash
1856 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1857}
f4707595 1858
c96a8570
BS
1859/* Test whether the key fields of two bfinfdpic_relocs_info entries are
1860 identical. */
1861static int
1862bfinfdpic_relocs_info_eq (const void *entry1, const void *entry2)
0f64bb02 1863{
c96a8570
BS
1864 const struct bfinfdpic_relocs_info *e1 = entry1;
1865 const struct bfinfdpic_relocs_info *e2 = entry2;
0f64bb02 1866
c96a8570
BS
1867 return e1->symndx == e2->symndx && e1->addend == e2->addend
1868 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1869}
48d502e1 1870
c96a8570
BS
1871/* Find or create an entry in a hash table HT that matches the key
1872 fields of the given ENTRY. If it's not found, memory for a new
1873 entry is allocated in ABFD's obstack. */
1874static struct bfinfdpic_relocs_info *
1875bfinfdpic_relocs_info_find (struct htab *ht,
1876 bfd *abfd,
1877 const struct bfinfdpic_relocs_info *entry,
1878 enum insert_option insert)
1879{
83fd9437
JZ
1880 struct bfinfdpic_relocs_info **loc;
1881
1882 if (!ht)
1883 return NULL;
1884
1885 loc = (struct bfinfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
0f64bb02 1886
c96a8570
BS
1887 if (! loc)
1888 return NULL;
0f64bb02 1889
c96a8570
BS
1890 if (*loc)
1891 return *loc;
0f64bb02 1892
c96a8570 1893 *loc = bfd_zalloc (abfd, sizeof (**loc));
0f64bb02 1894
c96a8570
BS
1895 if (! *loc)
1896 return *loc;
0f64bb02 1897
c96a8570
BS
1898 (*loc)->symndx = entry->symndx;
1899 (*loc)->d = entry->d;
1900 (*loc)->addend = entry->addend;
1901 (*loc)->plt_entry = (bfd_vma)-1;
1902 (*loc)->lzplt_entry = (bfd_vma)-1;
0f64bb02 1903
c96a8570
BS
1904 return *loc;
1905}
48d502e1 1906
c96a8570
BS
1907/* Obtain the address of the entry in HT associated with H's symbol +
1908 addend, creating a new entry if none existed. ABFD is only used
1909 for memory allocation purposes. */
1910inline static struct bfinfdpic_relocs_info *
1911bfinfdpic_relocs_info_for_global (struct htab *ht,
2c3fc389
NC
1912 bfd *abfd,
1913 struct elf_link_hash_entry *h,
1914 bfd_vma addend,
1915 enum insert_option insert)
c96a8570
BS
1916{
1917 struct bfinfdpic_relocs_info entry;
0f64bb02 1918
c96a8570
BS
1919 entry.symndx = -1;
1920 entry.d.h = h;
1921 entry.addend = addend;
f4707595 1922
c96a8570
BS
1923 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
1924}
48d502e1 1925
c96a8570
BS
1926/* Obtain the address of the entry in HT associated with the SYMNDXth
1927 local symbol of the input bfd ABFD, plus the addend, creating a new
1928 entry if none existed. */
1929inline static struct bfinfdpic_relocs_info *
1930bfinfdpic_relocs_info_for_local (struct htab *ht,
1931 bfd *abfd,
1932 long symndx,
1933 bfd_vma addend,
1934 enum insert_option insert)
1935{
1936 struct bfinfdpic_relocs_info entry;
ab96bf03 1937
c96a8570
BS
1938 entry.symndx = symndx;
1939 entry.d.abfd = abfd;
1940 entry.addend = addend;
48d502e1 1941
c96a8570
BS
1942 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
1943}
48d502e1 1944
c96a8570
BS
1945/* Merge fields set by check_relocs() of two entries that end up being
1946 mapped to the same (presumably global) symbol. */
0f64bb02 1947
c96a8570
BS
1948inline static void
1949bfinfdpic_pic_merge_early_relocs_info (struct bfinfdpic_relocs_info *e2,
2c3fc389 1950 struct bfinfdpic_relocs_info const *e1)
c96a8570
BS
1951{
1952 e2->got17m4 |= e1->got17m4;
1953 e2->gothilo |= e1->gothilo;
1954 e2->fd |= e1->fd;
1955 e2->fdgot17m4 |= e1->fdgot17m4;
1956 e2->fdgothilo |= e1->fdgothilo;
1957 e2->fdgoff17m4 |= e1->fdgoff17m4;
1958 e2->fdgoffhilo |= e1->fdgoffhilo;
1959 e2->gotoff |= e1->gotoff;
1960 e2->call |= e1->call;
1961 e2->sym |= e1->sym;
1962}
48d502e1 1963
c96a8570
BS
1964/* Every block of 65535 lazy PLT entries shares a single call to the
1965 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1966 32767, counting from 0). All other lazy PLT entries branch to it
1967 in a single instruction. */
48d502e1 1968
c96a8570
BS
1969#define LZPLT_RESOLVER_EXTRA 10
1970#define LZPLT_NORMAL_SIZE 6
1971#define LZPLT_ENTRIES 1362
48d502e1 1972
c96a8570
BS
1973#define BFINFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) LZPLT_NORMAL_SIZE * LZPLT_ENTRIES + LZPLT_RESOLVER_EXTRA)
1974#define BFINFDPIC_LZPLT_RESOLV_LOC (LZPLT_NORMAL_SIZE * LZPLT_ENTRIES / 2)
48d502e1 1975
c96a8570 1976/* Add a dynamic relocation to the SRELOC section. */
48d502e1 1977
c96a8570
BS
1978inline static bfd_vma
1979_bfinfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1980 int reloc_type, long dynindx, bfd_vma addend,
1981 struct bfinfdpic_relocs_info *entry)
1982{
1983 Elf_Internal_Rela outrel;
1984 bfd_vma reloc_offset;
0f64bb02 1985
c96a8570
BS
1986 outrel.r_offset = offset;
1987 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1988 outrel.r_addend = addend;
48d502e1 1989
c96a8570
BS
1990 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1991 BFD_ASSERT (reloc_offset < sreloc->size);
1992 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1993 sreloc->contents + reloc_offset);
1994 sreloc->reloc_count++;
48d502e1 1995
c96a8570
BS
1996 /* If the entry's index is zero, this relocation was probably to a
1997 linkonce section that got discarded. We reserved a dynamic
1998 relocation, but it was for another entry than the one we got at
1999 the time of emitting the relocation. Unfortunately there's no
2000 simple way for us to catch this situation, since the relocation
2001 is cleared right before calling relocate_section, at which point
2002 we no longer know what the relocation used to point to. */
2003 if (entry->symndx)
2004 {
2005 BFD_ASSERT (entry->dynrelocs > 0);
2006 entry->dynrelocs--;
2007 }
48d502e1 2008
c96a8570
BS
2009 return reloc_offset;
2010}
0f64bb02 2011
c96a8570 2012/* Add a fixup to the ROFIXUP section. */
48d502e1 2013
c96a8570
BS
2014static bfd_vma
2015_bfinfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
2c3fc389 2016 struct bfinfdpic_relocs_info *entry)
c96a8570
BS
2017{
2018 bfd_vma fixup_offset;
8aafe8b4 2019
c96a8570
BS
2020 if (rofixup->flags & SEC_EXCLUDE)
2021 return -1;
0f64bb02 2022
c96a8570
BS
2023 fixup_offset = rofixup->reloc_count * 4;
2024 if (rofixup->contents)
2025 {
2026 BFD_ASSERT (fixup_offset < rofixup->size);
2027 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
2028 }
2029 rofixup->reloc_count++;
0f64bb02 2030
c96a8570
BS
2031 if (entry && entry->symndx)
2032 {
2033 /* See discussion about symndx == 0 in _bfinfdpic_add_dyn_reloc
2034 above. */
2035 BFD_ASSERT (entry->fixups > 0);
2036 entry->fixups--;
2037 }
f4707595 2038
c96a8570
BS
2039 return fixup_offset;
2040}
0f64bb02 2041
c96a8570
BS
2042/* Find the segment number in which OSEC, and output section, is
2043 located. */
ca889129 2044
c96a8570
BS
2045static unsigned
2046_bfinfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
2047{
2048 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
0f64bb02 2049
c96a8570
BS
2050 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
2051}
2052
0a1b45a2 2053inline static bool
c96a8570
BS
2054_bfinfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
2055{
2056 unsigned seg = _bfinfdpic_osec_to_segment (output_bfd, osec);
2057
2058 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
2059}
2060
2061/* Generate relocations for GOT entries, function descriptors, and
2062 code for PLT and lazy PLT entries. */
2063
0a1b45a2 2064inline static bool
c96a8570
BS
2065_bfinfdpic_emit_got_relocs_plt_entries (struct bfinfdpic_relocs_info *entry,
2066 bfd *output_bfd,
2067 struct bfd_link_info *info,
2068 asection *sec,
2069 Elf_Internal_Sym *sym,
2070 bfd_vma addend)
c96a8570 2071{
2c3fc389 2072 bfd_vma fd_lazy_rel_offset = (bfd_vma) -1;
c96a8570
BS
2073 int dynindx = -1;
2074
2075 if (entry->done)
0a1b45a2 2076 return true;
c96a8570
BS
2077 entry->done = 1;
2078
2079 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry)
2080 {
2081 /* If the symbol is dynamic, consider it for dynamic
2082 relocations, otherwise decay to section + offset. */
2083 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
2084 dynindx = entry->d.h->dynindx;
2085 else
2086 {
6a9adeca
BS
2087 if (sec
2088 && sec->output_section
c96a8570
BS
2089 && ! bfd_is_abs_section (sec->output_section)
2090 && ! bfd_is_und_section (sec->output_section))
2091 dynindx = elf_section_data (sec->output_section)->dynindx;
2092 else
2093 dynindx = 0;
2094 }
2095 }
2096
2097 /* Generate relocation for GOT entry pointing to the symbol. */
2098 if (entry->got_entry)
2099 {
2100 int idx = dynindx;
2101 bfd_vma ad = addend;
2102
2103 /* If the symbol is dynamic but binds locally, use
2104 section+offset. */
2105 if (sec && (entry->symndx != -1
2106 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2107 {
2108 if (entry->symndx == -1)
2109 ad += entry->d.h->root.u.def.value;
2110 else
2111 ad += sym->st_value;
2112 ad += sec->output_offset;
2113 if (sec->output_section && elf_section_data (sec->output_section))
2114 idx = elf_section_data (sec->output_section)->dynindx;
2115 else
2116 idx = 0;
2117 }
2118
2119 /* If we're linking an executable at a fixed address, we can
2120 omit the dynamic relocation as long as the symbol is local to
2121 this module. */
3cbc1e5e 2122 if (bfd_link_pde (info)
c96a8570
BS
2123 && (entry->symndx != -1
2124 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2125 {
2126 if (sec)
2127 ad += sec->output_section->vma;
2128 if (entry->symndx != -1
2129 || entry->d.h->root.type != bfd_link_hash_undefweak)
2130 _bfinfdpic_add_rofixup (output_bfd,
2131 bfinfdpic_gotfixup_section (info),
2132 bfinfdpic_got_section (info)->output_section
2133 ->vma
2134 + bfinfdpic_got_section (info)->output_offset
2135 + bfinfdpic_got_initial_offset (info)
2136 + entry->got_entry, entry);
2137 }
2138 else
2139 _bfinfdpic_add_dyn_reloc (output_bfd, bfinfdpic_gotrel_section (info),
2140 _bfd_elf_section_offset
2141 (output_bfd, info,
2142 bfinfdpic_got_section (info),
2143 bfinfdpic_got_initial_offset (info)
2144 + entry->got_entry)
2145 + bfinfdpic_got_section (info)
2146 ->output_section->vma
2147 + bfinfdpic_got_section (info)->output_offset,
cb88ce9f 2148 R_BFIN_BYTE4_DATA, idx, ad, entry);
c96a8570
BS
2149
2150 bfd_put_32 (output_bfd, ad,
2151 bfinfdpic_got_section (info)->contents
2152 + bfinfdpic_got_initial_offset (info)
2153 + entry->got_entry);
2154 }
2155
2156 /* Generate relocation for GOT entry pointing to a canonical
2157 function descriptor. */
2158 if (entry->fdgot_entry)
2159 {
2160 int reloc, idx;
2161 bfd_vma ad = 0;
2162
2163 if (! (entry->symndx == -1
2164 && entry->d.h->root.type == bfd_link_hash_undefweak
2165 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2166 {
2167 /* If the symbol is dynamic and there may be dynamic symbol
2168 resolution because we are, or are linked with, a shared
2169 library, emit a FUNCDESC relocation such that the dynamic
2170 linker will allocate the function descriptor. If the
2171 symbol needs a non-local function descriptor but binds
2172 locally (e.g., its visibility is protected, emit a
2173 dynamic relocation decayed to section+offset. */
2174 if (entry->symndx == -1
2175 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
2176 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)
3cbc1e5e 2177 && !bfd_link_pde (info))
c96a8570
BS
2178 {
2179 reloc = R_BFIN_FUNCDESC;
2180 idx = elf_section_data (entry->d.h->root.u.def.section
2181 ->output_section)->dynindx;
2182 ad = entry->d.h->root.u.def.section->output_offset
2183 + entry->d.h->root.u.def.value;
2184 }
2185 else if (entry->symndx == -1
2186 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
2187 {
2188 reloc = R_BFIN_FUNCDESC;
2189 idx = dynindx;
2190 ad = addend;
2191 if (ad)
0a1b45a2 2192 return false;
c96a8570
BS
2193 }
2194 else
2195 {
2196 /* Otherwise, we know we have a private function descriptor,
2197 so reference it directly. */
2198 if (elf_hash_table (info)->dynamic_sections_created)
2199 BFD_ASSERT (entry->privfd);
cb88ce9f 2200 reloc = R_BFIN_BYTE4_DATA;
c96a8570
BS
2201 idx = elf_section_data (bfinfdpic_got_section (info)
2202 ->output_section)->dynindx;
2203 ad = bfinfdpic_got_section (info)->output_offset
2204 + bfinfdpic_got_initial_offset (info) + entry->fd_entry;
2205 }
2206
2207 /* If there is room for dynamic symbol resolution, emit the
2208 dynamic relocation. However, if we're linking an
2209 executable at a fixed location, we won't have emitted a
2210 dynamic symbol entry for the got section, so idx will be
2211 zero, which means we can and should compute the address
2212 of the private descriptor ourselves. */
3cbc1e5e 2213 if (bfd_link_pde (info)
c96a8570
BS
2214 && (entry->symndx != -1
2215 || BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
2216 {
2217 ad += bfinfdpic_got_section (info)->output_section->vma;
2218 _bfinfdpic_add_rofixup (output_bfd,
2219 bfinfdpic_gotfixup_section (info),
2220 bfinfdpic_got_section (info)
2221 ->output_section->vma
2222 + bfinfdpic_got_section (info)
2223 ->output_offset
2224 + bfinfdpic_got_initial_offset (info)
2225 + entry->fdgot_entry, entry);
2226 }
2227 else
2228 _bfinfdpic_add_dyn_reloc (output_bfd,
2229 bfinfdpic_gotrel_section (info),
2230 _bfd_elf_section_offset
2231 (output_bfd, info,
2232 bfinfdpic_got_section (info),
2233 bfinfdpic_got_initial_offset (info)
2234 + entry->fdgot_entry)
2235 + bfinfdpic_got_section (info)
2236 ->output_section->vma
2237 + bfinfdpic_got_section (info)
2238 ->output_offset,
2239 reloc, idx, ad, entry);
2240 }
f4707595 2241
c96a8570
BS
2242 bfd_put_32 (output_bfd, ad,
2243 bfinfdpic_got_section (info)->contents
2244 + bfinfdpic_got_initial_offset (info)
2245 + entry->fdgot_entry);
2246 }
2247
2248 /* Generate relocation to fill in a private function descriptor in
2249 the GOT. */
2250 if (entry->fd_entry)
2251 {
2252 int idx = dynindx;
2253 bfd_vma ad = addend;
2254 bfd_vma ofst;
2255 long lowword, highword;
2256
2257 /* If the symbol is dynamic but binds locally, use
2258 section+offset. */
2259 if (sec && (entry->symndx != -1
2260 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2261 {
2262 if (entry->symndx == -1)
2263 ad += entry->d.h->root.u.def.value;
2264 else
2265 ad += sym->st_value;
2266 ad += sec->output_offset;
2267 if (sec->output_section && elf_section_data (sec->output_section))
2268 idx = elf_section_data (sec->output_section)->dynindx;
2269 else
2270 idx = 0;
48d502e1 2271 }
f4707595 2272
c96a8570
BS
2273 /* If we're linking an executable at a fixed address, we can
2274 omit the dynamic relocation as long as the symbol is local to
2275 this module. */
3cbc1e5e 2276 if (bfd_link_pde (info)
c96a8570 2277 && (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
48d502e1 2278 {
c96a8570
BS
2279 if (sec)
2280 ad += sec->output_section->vma;
2281 ofst = 0;
2282 if (entry->symndx != -1
2283 || entry->d.h->root.type != bfd_link_hash_undefweak)
2284 {
2285 _bfinfdpic_add_rofixup (output_bfd,
2286 bfinfdpic_gotfixup_section (info),
2287 bfinfdpic_got_section (info)
2288 ->output_section->vma
2289 + bfinfdpic_got_section (info)
2290 ->output_offset
2291 + bfinfdpic_got_initial_offset (info)
2292 + entry->fd_entry, entry);
2293 _bfinfdpic_add_rofixup (output_bfd,
2294 bfinfdpic_gotfixup_section (info),
2295 bfinfdpic_got_section (info)
2296 ->output_section->vma
2297 + bfinfdpic_got_section (info)
2298 ->output_offset
2299 + bfinfdpic_got_initial_offset (info)
2300 + entry->fd_entry + 4, entry);
2301 }
2302 }
2303 else
2304 {
2305 ofst
2306 = _bfinfdpic_add_dyn_reloc (output_bfd,
2307 entry->lazyplt
2308 ? bfinfdpic_pltrel_section (info)
2309 : bfinfdpic_gotrel_section (info),
2310 _bfd_elf_section_offset
2311 (output_bfd, info,
2312 bfinfdpic_got_section (info),
2313 bfinfdpic_got_initial_offset (info)
2314 + entry->fd_entry)
2315 + bfinfdpic_got_section (info)
2316 ->output_section->vma
2317 + bfinfdpic_got_section (info)
2318 ->output_offset,
2319 R_BFIN_FUNCDESC_VALUE, idx, ad, entry);
48d502e1 2320 }
f4707595 2321
c96a8570
BS
2322 /* If we've omitted the dynamic relocation, just emit the fixed
2323 addresses of the symbol and of the local GOT base offset. */
3cbc1e5e 2324 if (bfd_link_pde (info)
0e1862bb
L
2325 && sec
2326 && sec->output_section)
48d502e1 2327 {
c96a8570
BS
2328 lowword = ad;
2329 highword = bfinfdpic_got_section (info)->output_section->vma
2330 + bfinfdpic_got_section (info)->output_offset
2331 + bfinfdpic_got_initial_offset (info);
2332 }
2333 else if (entry->lazyplt)
2334 {
2335 if (ad)
0a1b45a2 2336 return false;
f4707595 2337
c96a8570 2338 fd_lazy_rel_offset = ofst;
f4707595 2339
c96a8570
BS
2340 /* A function descriptor used for lazy or local resolving is
2341 initialized such that its high word contains the output
2342 section index in which the PLT entries are located, and
2343 the low word contains the address of the lazy PLT entry
2344 entry point, that must be within the memory region
2345 assigned to that section. */
2346 lowword = entry->lzplt_entry + 4
2347 + bfinfdpic_plt_section (info)->output_offset
2348 + bfinfdpic_plt_section (info)->output_section->vma;
2349 highword = _bfinfdpic_osec_to_segment
2350 (output_bfd, bfinfdpic_plt_section (info)->output_section);
2351 }
2352 else
2353 {
2354 /* A function descriptor for a local function gets the index
2355 of the section. For a non-local function, it's
2356 disregarded. */
2357 lowword = ad;
6a9adeca
BS
2358 if (sec == NULL
2359 || (entry->symndx == -1 && entry->d.h->dynindx != -1
2360 && entry->d.h->dynindx == idx))
c96a8570
BS
2361 highword = 0;
2362 else
2363 highword = _bfinfdpic_osec_to_segment
2364 (output_bfd, sec->output_section);
48d502e1 2365 }
f4707595 2366
c96a8570
BS
2367 bfd_put_32 (output_bfd, lowword,
2368 bfinfdpic_got_section (info)->contents
2369 + bfinfdpic_got_initial_offset (info)
2370 + entry->fd_entry);
2371 bfd_put_32 (output_bfd, highword,
2372 bfinfdpic_got_section (info)->contents
2373 + bfinfdpic_got_initial_offset (info)
2374 + entry->fd_entry + 4);
2375 }
2376
2377 /* Generate code for the PLT entry. */
2378 if (entry->plt_entry != (bfd_vma) -1)
2379 {
2380 bfd_byte *plt_code = bfinfdpic_plt_section (info)->contents
2381 + entry->plt_entry;
2382
2383 BFD_ASSERT (entry->fd_entry);
2384
2385 /* Figure out what kind of PLT entry we need, depending on the
2386 location of the function descriptor within the GOT. */
2387 if (entry->fd_entry >= -(1 << (18 - 1))
2388 && entry->fd_entry + 4 < (1 << (18 - 1)))
48d502e1 2389 {
c96a8570
BS
2390 /* P1 = [P3 + fd_entry]; P3 = [P3 + fd_entry + 4] */
2391 bfd_put_32 (output_bfd,
2392 0xe519 | ((entry->fd_entry << 14) & 0xFFFF0000),
2393 plt_code);
2394 bfd_put_32 (output_bfd,
2395 0xe51b | (((entry->fd_entry + 4) << 14) & 0xFFFF0000),
2396 plt_code + 4);
2397 plt_code += 8;
2398 }
2399 else
2400 {
2401 /* P1.L = fd_entry; P1.H = fd_entry;
2402 P3 = P3 + P1;
2403 P1 = [P3];
2404 P3 = [P3 + 4]; */
2405 bfd_put_32 (output_bfd,
2406 0xe109 | (entry->fd_entry << 16),
2407 plt_code);
2408 bfd_put_32 (output_bfd,
2409 0xe149 | (entry->fd_entry & 0xFFFF0000),
2410 plt_code + 4);
2411 bfd_put_16 (output_bfd, 0x5ad9, plt_code + 8);
2412 bfd_put_16 (output_bfd, 0x9159, plt_code + 10);
2413 bfd_put_16 (output_bfd, 0xac5b, plt_code + 12);
2414 plt_code += 14;
2415 }
2416 /* JUMP (P1) */
2417 bfd_put_16 (output_bfd, 0x0051, plt_code);
2418 }
f4707595 2419
c96a8570
BS
2420 /* Generate code for the lazy PLT entry. */
2421 if (entry->lzplt_entry != (bfd_vma) -1)
2422 {
2423 bfd_byte *lzplt_code = bfinfdpic_plt_section (info)->contents
2424 + entry->lzplt_entry;
2425 bfd_vma resolverStub_addr;
0f64bb02 2426
c96a8570
BS
2427 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
2428 lzplt_code += 4;
0f64bb02 2429
c96a8570
BS
2430 resolverStub_addr = entry->lzplt_entry / BFINFDPIC_LZPLT_BLOCK_SIZE
2431 * BFINFDPIC_LZPLT_BLOCK_SIZE + BFINFDPIC_LZPLT_RESOLV_LOC;
2432 if (resolverStub_addr >= bfinfdpic_plt_initial_offset (info))
2433 resolverStub_addr = bfinfdpic_plt_initial_offset (info) - LZPLT_NORMAL_SIZE - LZPLT_RESOLVER_EXTRA;
0f64bb02 2434
c96a8570 2435 if (entry->lzplt_entry == resolverStub_addr)
0f64bb02 2436 {
c96a8570
BS
2437 /* This is a lazy PLT entry that includes a resolver call.
2438 P2 = [P3];
2439 R3 = [P3 + 4];
2440 JUMP (P2); */
2441 bfd_put_32 (output_bfd,
2442 0xa05b915a,
2443 lzplt_code);
2444 bfd_put_16 (output_bfd, 0x0052, lzplt_code + 4);
2445 }
2446 else
2447 {
2448 /* JUMP.S resolverStub */
2449 bfd_put_16 (output_bfd,
2450 0x2000
2451 | (((resolverStub_addr - entry->lzplt_entry)
2452 / 2) & (((bfd_vma)1 << 12) - 1)),
2453 lzplt_code);
2454 }
2455 }
0f64bb02 2456
0a1b45a2 2457 return true;
c96a8570
BS
2458}
2459\f
2460/* Relocate an Blackfin ELF section.
48d502e1 2461
c96a8570
BS
2462 The RELOCATE_SECTION function is called by the new ELF backend linker
2463 to handle the relocations for a section.
48d502e1 2464
c96a8570
BS
2465 The relocs are always passed as Rela structures; if the section
2466 actually uses Rel structures, the r_addend field will always be
2467 zero.
48d502e1 2468
c96a8570
BS
2469 This function is responsible for adjusting the section contents as
2470 necessary, and (if using Rela relocs and generating a relocatable
2471 output file) adjusting the reloc addend as necessary.
48d502e1 2472
c96a8570
BS
2473 This function does not have to worry about setting the reloc
2474 address or the reloc symbol index.
48d502e1 2475
c96a8570 2476 LOCAL_SYMS is a pointer to the swapped in local symbols.
48d502e1 2477
c96a8570
BS
2478 LOCAL_SECTIONS is an array giving the section in the input file
2479 corresponding to the st_shndx field of each local symbol.
48d502e1 2480
c96a8570
BS
2481 The global hash table entry for the global symbols can be found
2482 via elf_sym_hashes (input_bfd).
48d502e1 2483
c96a8570
BS
2484 When generating relocatable output, this function must handle
2485 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2486 going to be the section symbol corresponding to the output
2487 section, which means that the addend must be adjusted
2488 accordingly. */
48d502e1 2489
0f684201 2490static int
c96a8570
BS
2491bfinfdpic_relocate_section (bfd * output_bfd,
2492 struct bfd_link_info *info,
2493 bfd * input_bfd,
2494 asection * input_section,
2495 bfd_byte * contents,
2496 Elf_Internal_Rela * relocs,
2497 Elf_Internal_Sym * local_syms,
2498 asection ** local_sections)
48d502e1 2499{
48d502e1
BS
2500 Elf_Internal_Shdr *symtab_hdr;
2501 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS
2502 Elf_Internal_Rela *rel;
2503 Elf_Internal_Rela *relend;
c96a8570
BS
2504 unsigned isec_segment, got_segment, plt_segment,
2505 check_segment[2];
0e1862bb 2506 int silence_segment_error = !bfd_link_pic (info);
48d502e1 2507
c96a8570 2508 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
48d502e1 2509 sym_hashes = elf_sym_hashes (input_bfd);
c96a8570 2510 relend = relocs + input_section->reloc_count;
48d502e1 2511
c96a8570
BS
2512 isec_segment = _bfinfdpic_osec_to_segment (output_bfd,
2513 input_section->output_section);
2514 if (IS_FDPIC (output_bfd) && bfinfdpic_got_section (info))
2515 got_segment = _bfinfdpic_osec_to_segment (output_bfd,
2516 bfinfdpic_got_section (info)
2517 ->output_section);
2518 else
2519 got_segment = -1;
2520 if (IS_FDPIC (output_bfd) && elf_hash_table (info)->dynamic_sections_created)
2521 plt_segment = _bfinfdpic_osec_to_segment (output_bfd,
2522 bfinfdpic_plt_section (info)
2523 ->output_section);
2524 else
2525 plt_segment = -1;
48d502e1 2526
c96a8570 2527 for (rel = relocs; rel < relend; rel ++)
48d502e1 2528 {
48d502e1
BS
2529 reloc_howto_type *howto;
2530 unsigned long r_symndx;
48d502e1
BS
2531 Elf_Internal_Sym *sym;
2532 asection *sec;
c96a8570
BS
2533 struct elf_link_hash_entry *h;
2534 bfd_vma relocation;
48d502e1 2535 bfd_reloc_status_type r;
c96a8570
BS
2536 const char * name = NULL;
2537 int r_type;
2538 asection *osec;
2539 struct bfinfdpic_relocs_info *picrel;
2540 bfd_vma orig_addend = rel->r_addend;
48d502e1
BS
2541
2542 r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 2543
c96a8570
BS
2544 if (r_type == R_BFIN_GNU_VTINHERIT
2545 || r_type == R_BFIN_GNU_VTENTRY)
48d502e1
BS
2546 continue;
2547
c96a8570 2548 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1
BS
2549 howto = bfin_reloc_type_lookup (input_bfd, r_type);
2550 if (howto == NULL)
2551 {
2552 bfd_set_error (bfd_error_bad_value);
0a1b45a2 2553 return false;
48d502e1 2554 }
48d502e1 2555
c96a8570
BS
2556 h = NULL;
2557 sym = NULL;
2558 sec = NULL;
8a4ba3a1 2559 picrel = NULL;
c96a8570
BS
2560
2561 if (r_symndx < symtab_hdr->sh_info)
2562 {
2563 sym = local_syms + r_symndx;
2564 osec = sec = local_sections [r_symndx];
2565 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2566
2567 name = bfd_elf_string_from_elf_section
2568 (input_bfd, symtab_hdr->sh_link, sym->st_name);
fd361982 2569 name = name == NULL ? bfd_section_name (sec) : name;
c96a8570
BS
2570 }
2571 else
2572 {
0a1b45a2
AM
2573 bool warned, ignored;
2574 bool unresolved_reloc;
c96a8570
BS
2575
2576 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2577 r_symndx, symtab_hdr, sym_hashes,
2578 h, sec, relocation,
62d887d4 2579 unresolved_reloc, warned, ignored);
c96a8570
BS
2580 osec = sec;
2581 }
2582
dbaa2011 2583 if (sec != NULL && discarded_section (sec))
e4067dbb 2584 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2585 rel, 1, relend, howto, 0, contents);
c96a8570 2586
0e1862bb 2587 if (bfd_link_relocatable (info))
c96a8570
BS
2588 continue;
2589
2590 if (h != NULL
2591 && (h->root.type == bfd_link_hash_defined
2592 || h->root.type == bfd_link_hash_defweak)
2593 && !BFINFDPIC_SYM_LOCAL (info, h))
2594 {
2595 osec = sec = NULL;
2596 relocation = 0;
2597 }
2598
2599 switch (r_type)
2600 {
cb88ce9f
BS
2601 case R_BFIN_PCREL24:
2602 case R_BFIN_PCREL24_JUMP_L:
2603 case R_BFIN_BYTE4_DATA:
c96a8570
BS
2604 if (! IS_FDPIC (output_bfd))
2605 goto non_fdpic;
1a0670f3 2606 /* Fall through. */
c96a8570
BS
2607
2608 case R_BFIN_GOT17M4:
2609 case R_BFIN_GOTHI:
2610 case R_BFIN_GOTLO:
2611 case R_BFIN_FUNCDESC_GOT17M4:
2612 case R_BFIN_FUNCDESC_GOTHI:
2613 case R_BFIN_FUNCDESC_GOTLO:
2614 case R_BFIN_GOTOFF17M4:
2615 case R_BFIN_GOTOFFHI:
2616 case R_BFIN_GOTOFFLO:
2617 case R_BFIN_FUNCDESC_GOTOFF17M4:
2618 case R_BFIN_FUNCDESC_GOTOFFHI:
2619 case R_BFIN_FUNCDESC_GOTOFFLO:
2620 case R_BFIN_FUNCDESC:
2621 case R_BFIN_FUNCDESC_VALUE:
981f1518
L
2622 if ((input_section->flags & SEC_ALLOC) == 0)
2623 break;
2624
c96a8570
BS
2625 if (h != NULL)
2626 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info
2627 (info), input_bfd, h,
2628 orig_addend, INSERT);
2629 else
2630 /* In order to find the entry we created before, we must
2631 use the original addend, not the one that may have been
2632 modified by _bfd_elf_rela_local_sym(). */
2633 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
2634 (info), input_bfd, r_symndx,
2635 orig_addend, INSERT);
2636 if (! picrel)
0a1b45a2 2637 return false;
c96a8570
BS
2638
2639 if (!_bfinfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2640 osec, sym,
2641 rel->r_addend))
2642 {
4eca0228 2643 _bfd_error_handler
695344c0 2644 /* xgettext:c-format */
2dcf00ce
AM
2645 (_("%pB: relocation at `%pA+%#" PRIx64 "' "
2646 "references symbol `%s' with nonzero addend"),
2647 input_bfd, input_section, (uint64_t) rel->r_offset, name);
0a1b45a2 2648 return false;
c96a8570
BS
2649
2650 }
48d502e1 2651
c96a8570 2652 break;
ab96bf03 2653
c96a8570
BS
2654 default:
2655 non_fdpic:
2656 picrel = NULL;
1d5316ab
AM
2657 if (h && ! BFINFDPIC_SYM_LOCAL (info, h)
2658 && _bfd_elf_section_offset (output_bfd, info, input_section,
2659 rel->r_offset) != (bfd_vma) -1)
c96a8570
BS
2660 {
2661 info->callbacks->warning
2662 (info, _("relocation references symbol not defined in the module"),
2663 name, input_bfd, input_section, rel->r_offset);
0a1b45a2 2664 return false;
c96a8570
BS
2665 }
2666 break;
48d502e1
BS
2667 }
2668
c96a8570 2669 switch (r_type)
ab96bf03 2670 {
cb88ce9f
BS
2671 case R_BFIN_PCREL24:
2672 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS
2673 check_segment[0] = isec_segment;
2674 if (! IS_FDPIC (output_bfd))
2675 check_segment[1] = isec_segment;
2676 else if (picrel->plt)
2677 {
2678 relocation = bfinfdpic_plt_section (info)->output_section->vma
2679 + bfinfdpic_plt_section (info)->output_offset
2680 + picrel->plt_entry;
2681 check_segment[1] = plt_segment;
2682 }
2683 /* We don't want to warn on calls to undefined weak symbols,
2684 as calls to them must be protected by non-NULL tests
2685 anyway, and unprotected calls would invoke undefined
2686 behavior. */
2687 else if (picrel->symndx == -1
2688 && picrel->d.h->root.type == bfd_link_hash_undefweak)
2689 check_segment[1] = check_segment[0];
2690 else
2691 check_segment[1] = sec
2692 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2693 : (unsigned)-1;
2694 break;
ab96bf03 2695
c96a8570
BS
2696 case R_BFIN_GOT17M4:
2697 case R_BFIN_GOTHI:
2698 case R_BFIN_GOTLO:
2699 relocation = picrel->got_entry;
2700 check_segment[0] = check_segment[1] = got_segment;
2701 break;
ab96bf03 2702
c96a8570
BS
2703 case R_BFIN_FUNCDESC_GOT17M4:
2704 case R_BFIN_FUNCDESC_GOTHI:
2705 case R_BFIN_FUNCDESC_GOTLO:
2706 relocation = picrel->fdgot_entry;
2707 check_segment[0] = check_segment[1] = got_segment;
2708 break;
48d502e1 2709
c96a8570
BS
2710 case R_BFIN_GOTOFFHI:
2711 case R_BFIN_GOTOFF17M4:
2712 case R_BFIN_GOTOFFLO:
2713 relocation -= bfinfdpic_got_section (info)->output_section->vma
2714 + bfinfdpic_got_section (info)->output_offset
2715 + bfinfdpic_got_initial_offset (info);
2716 check_segment[0] = got_segment;
2717 check_segment[1] = sec
2718 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2719 : (unsigned)-1;
2720 break;
48d502e1 2721
c96a8570
BS
2722 case R_BFIN_FUNCDESC_GOTOFF17M4:
2723 case R_BFIN_FUNCDESC_GOTOFFHI:
2724 case R_BFIN_FUNCDESC_GOTOFFLO:
2725 relocation = picrel->fd_entry;
2726 check_segment[0] = check_segment[1] = got_segment;
2727 break;
48d502e1 2728
c96a8570 2729 case R_BFIN_FUNCDESC:
8ca9c7eb
L
2730 if ((input_section->flags & SEC_ALLOC) != 0)
2731 {
2732 int dynindx;
2733 bfd_vma addend = rel->r_addend;
c96a8570 2734
8ca9c7eb
L
2735 if (! (h && h->root.type == bfd_link_hash_undefweak
2736 && BFINFDPIC_SYM_LOCAL (info, h)))
2737 {
2738 /* If the symbol is dynamic and there may be dynamic
2739 symbol resolution because we are or are linked with a
2740 shared library, emit a FUNCDESC relocation such that
2741 the dynamic linker will allocate the function
2742 descriptor. If the symbol needs a non-local function
2743 descriptor but binds locally (e.g., its visibility is
2744 protected, emit a dynamic relocation decayed to
2745 section+offset. */
2746 if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h)
2747 && BFINFDPIC_SYM_LOCAL (info, h)
2748 && !bfd_link_pde (info))
2749 {
2750 dynindx = elf_section_data (h->root.u.def.section
2751 ->output_section)->dynindx;
2752 addend += h->root.u.def.section->output_offset
2753 + h->root.u.def.value;
2754 }
2755 else if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h))
2756 {
2757 if (addend)
2758 {
2759 info->callbacks->warning
2760 (info, _("R_BFIN_FUNCDESC references dynamic symbol with nonzero addend"),
2761 name, input_bfd, input_section, rel->r_offset);
0a1b45a2 2762 return false;
8ca9c7eb
L
2763 }
2764 dynindx = h->dynindx;
2765 }
2766 else
2767 {
2768 /* Otherwise, we know we have a private function
2769 descriptor, so reference it directly. */
2770 BFD_ASSERT (picrel->privfd);
2771 r_type = R_BFIN_BYTE4_DATA;
2772 dynindx = elf_section_data (bfinfdpic_got_section (info)
2773 ->output_section)->dynindx;
2774 addend = bfinfdpic_got_section (info)->output_offset
2775 + bfinfdpic_got_initial_offset (info)
2776 + picrel->fd_entry;
2777 }
6a9adeca 2778
8ca9c7eb
L
2779 /* If there is room for dynamic symbol resolution, emit
2780 the dynamic relocation. However, if we're linking an
2781 executable at a fixed location, we won't have emitted a
2782 dynamic symbol entry for the got section, so idx will
2783 be zero, which means we can and should compute the
2784 address of the private descriptor ourselves. */
2785 if (bfd_link_pde (info)
2786 && (!h || BFINFDPIC_FUNCDESC_LOCAL (info, h)))
2787 {
2788 bfd_vma offset;
2789
2790 addend += bfinfdpic_got_section (info)->output_section->vma;
2791 if ((bfd_section_flags (input_section->output_section)
2792 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2793 {
2794 if (_bfinfdpic_osec_readonly_p (output_bfd,
2795 input_section
2796 ->output_section))
2797 {
2798 info->callbacks->warning
2799 (info,
2800 _("cannot emit fixups in read-only section"),
2801 name, input_bfd, input_section, rel->r_offset);
0a1b45a2 2802 return false;
8ca9c7eb
L
2803 }
2804
2805 offset = _bfd_elf_section_offset
2806 (output_bfd, info,
2807 input_section, rel->r_offset);
2808
2809 if (offset != (bfd_vma)-1)
2810 _bfinfdpic_add_rofixup (output_bfd,
2811 bfinfdpic_gotfixup_section
2812 (info),
2813 offset + input_section
2814 ->output_section->vma
2815 + input_section->output_offset,
2816 picrel);
2817 }
2818 }
2819 else if ((bfd_section_flags (input_section->output_section)
2820 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2821 {
2822 bfd_vma offset;
2823
2824 if (_bfinfdpic_osec_readonly_p (output_bfd,
2825 input_section
2826 ->output_section))
2827 {
2828 info->callbacks->warning
2829 (info,
2830 _("cannot emit dynamic relocations in read-only section"),
2831 name, input_bfd, input_section, rel->r_offset);
0a1b45a2 2832 return false;
8ca9c7eb
L
2833 }
2834 offset = _bfd_elf_section_offset (output_bfd, info,
2835 input_section, rel->r_offset);
2836
2837 if (offset != (bfd_vma)-1)
2838 _bfinfdpic_add_dyn_reloc (output_bfd,
2839 bfinfdpic_gotrel_section (info),
6a9adeca
BS
2840 offset + input_section
2841 ->output_section->vma
2842 + input_section->output_offset,
8ca9c7eb
L
2843 r_type,
2844 dynindx, addend, picrel);
2845 }
2846 else
2847 addend += bfinfdpic_got_section (info)->output_section->vma;
2848 }
c96a8570 2849
8ca9c7eb
L
2850 /* We want the addend in-place because dynamic
2851 relocations are REL. Setting relocation to it should
2852 arrange for it to be installed. */
2853 relocation = addend - rel->r_addend;
c96a8570
BS
2854 }
2855 check_segment[0] = check_segment[1] = got_segment;
2856 break;
2857
cb88ce9f 2858 case R_BFIN_BYTE4_DATA:
c96a8570 2859 if (! IS_FDPIC (output_bfd))
7a84e3da 2860 {
c96a8570
BS
2861 check_segment[0] = check_segment[1] = -1;
2862 break;
7a84e3da 2863 }
c96a8570
BS
2864 /* Fall through. */
2865 case R_BFIN_FUNCDESC_VALUE:
2866 {
2867 int dynindx;
2868 bfd_vma addend = rel->r_addend;
2869 bfd_vma offset;
2870 offset = _bfd_elf_section_offset (output_bfd, info,
2871 input_section, rel->r_offset);
7a84e3da 2872
c96a8570
BS
2873 /* If the symbol is dynamic but binds locally, use
2874 section+offset. */
2875 if (h && ! BFINFDPIC_SYM_LOCAL (info, h))
48d502e1 2876 {
c96a8570
BS
2877 if (addend && r_type == R_BFIN_FUNCDESC_VALUE)
2878 {
2879 info->callbacks->warning
2880 (info, _("R_BFIN_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
2881 name, input_bfd, input_section, rel->r_offset);
0a1b45a2 2882 return false;
c96a8570
BS
2883 }
2884 dynindx = h->dynindx;
48d502e1 2885 }
c96a8570 2886 else
48d502e1 2887 {
c96a8570
BS
2888 if (h)
2889 addend += h->root.u.def.value;
2890 else
2891 addend += sym->st_value;
2892 if (osec)
2893 addend += osec->output_offset;
2894 if (osec && osec->output_section
2895 && ! bfd_is_abs_section (osec->output_section)
2896 && ! bfd_is_und_section (osec->output_section))
2897 dynindx = elf_section_data (osec->output_section)->dynindx;
2898 else
2899 dynindx = 0;
2900 }
48d502e1 2901
c96a8570
BS
2902 /* If we're linking an executable at a fixed address, we
2903 can omit the dynamic relocation as long as the symbol
2904 is defined in the current link unit (which is implied
2905 by its output section not being NULL). */
3cbc1e5e 2906 if (bfd_link_pde (info)
c96a8570
BS
2907 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
2908 {
2909 if (osec)
2910 addend += osec->output_section->vma;
2911 if (IS_FDPIC (input_bfd)
fd361982 2912 && (bfd_section_flags (input_section->output_section)
c96a8570 2913 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 2914 {
c96a8570
BS
2915 if (_bfinfdpic_osec_readonly_p (output_bfd,
2916 input_section
2917 ->output_section))
48d502e1 2918 {
c96a8570
BS
2919 info->callbacks->warning
2920 (info,
2921 _("cannot emit fixups in read-only section"),
2922 name, input_bfd, input_section, rel->r_offset);
0a1b45a2 2923 return false;
c96a8570
BS
2924 }
2925 if (!h || h->root.type != bfd_link_hash_undefweak)
2926 {
6a9adeca 2927 if (offset != (bfd_vma)-1)
c96a8570 2928 {
6a9adeca
BS
2929 _bfinfdpic_add_rofixup (output_bfd,
2930 bfinfdpic_gotfixup_section
2931 (info),
2932 offset + input_section
2933 ->output_section->vma
2934 + input_section->output_offset,
2935 picrel);
2936
2937 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS
2938 _bfinfdpic_add_rofixup
2939 (output_bfd,
2940 bfinfdpic_gotfixup_section (info),
2941 offset + input_section->output_section->vma
2942 + input_section->output_offset + 4, picrel);
2943 }
48d502e1
BS
2944 }
2945 }
48d502e1
BS
2946 }
2947 else
2948 {
fd361982 2949 if ((bfd_section_flags (input_section->output_section)
c96a8570 2950 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 2951 {
c96a8570
BS
2952 if (_bfinfdpic_osec_readonly_p (output_bfd,
2953 input_section
2954 ->output_section))
48d502e1 2955 {
c96a8570
BS
2956 info->callbacks->warning
2957 (info,
2958 _("cannot emit dynamic relocations in read-only section"),
2959 name, input_bfd, input_section, rel->r_offset);
0a1b45a2 2960 return false;
48d502e1 2961 }
6a9adeca
BS
2962
2963 if (offset != (bfd_vma)-1)
c96a8570
BS
2964 _bfinfdpic_add_dyn_reloc (output_bfd,
2965 bfinfdpic_gotrel_section (info),
2966 offset
6a9adeca 2967 + input_section->output_section->vma
c96a8570
BS
2968 + input_section->output_offset,
2969 r_type, dynindx, addend, picrel);
48d502e1 2970 }
c96a8570
BS
2971 else if (osec)
2972 addend += osec->output_section->vma;
2973 /* We want the addend in-place because dynamic
2974 relocations are REL. Setting relocation to it
2975 should arrange for it to be installed. */
2976 relocation = addend - rel->r_addend;
2977 }
2978
6a9adeca 2979 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS
2980 {
2981 /* If we've omitted the dynamic relocation, just emit
2982 the fixed addresses of the symbol and of the local
2983 GOT base offset. */
3cbc1e5e 2984 if (bfd_link_pde (info)
c96a8570
BS
2985 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
2986 bfd_put_32 (output_bfd,
2987 bfinfdpic_got_section (info)->output_section->vma
2988 + bfinfdpic_got_section (info)->output_offset
2989 + bfinfdpic_got_initial_offset (info),
2990 contents + rel->r_offset + 4);
2991 else
2992 /* A function descriptor used for lazy or local
2993 resolving is initialized such that its high word
2994 contains the output section index in which the
2995 PLT entries are located, and the low word
2996 contains the offset of the lazy PLT entry entry
2997 point into that section. */
2998 bfd_put_32 (output_bfd,
2999 h && ! BFINFDPIC_SYM_LOCAL (info, h)
3000 ? 0
3001 : _bfinfdpic_osec_to_segment (output_bfd,
3002 sec
3003 ->output_section),
3004 contents + rel->r_offset + 4);
48d502e1 3005 }
c96a8570
BS
3006 }
3007 check_segment[0] = check_segment[1] = got_segment;
3008 break;
3009
3010 default:
3011 check_segment[0] = isec_segment;
3012 check_segment[1] = sec
3013 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
3014 : (unsigned)-1;
3015 break;
3016 }
3017
3018 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3019 {
3020#if 1 /* If you take this out, remove the #error from fdpic-static-6.d
3021 in the ld testsuite. */
3022 /* This helps catch problems in GCC while we can't do more
3023 than static linking. The idea is to test whether the
3024 input file basename is crt0.o only once. */
3025 if (silence_segment_error == 1)
3026 silence_segment_error =
765cf5f6
AM
3027 (strlen (bfd_get_filename (input_bfd)) == 6
3028 && filename_cmp (bfd_get_filename (input_bfd), "crt0.o") == 0)
3029 || (strlen (bfd_get_filename (input_bfd)) > 6
3030 && filename_cmp (bfd_get_filename (input_bfd)
3031 + strlen (bfd_get_filename (input_bfd)) - 7,
c96a8570
BS
3032 "/crt0.o") == 0)
3033 ? -1 : 0;
3034#endif
3035 if (!silence_segment_error
3036 /* We don't want duplicate errors for undefined
3037 symbols. */
3038 && !(picrel && picrel->symndx == -1
3039 && picrel->d.h->root.type == bfd_link_hash_undefined))
3040 info->callbacks->warning
3041 (info,
0e1862bb 3042 bfd_link_pic (info)
c96a8570
BS
3043 ? _("relocations between different segments are not supported")
3044 : _("warning: relocation references a different segment"),
3045 name, input_bfd, input_section, rel->r_offset);
0e1862bb 3046 if (!silence_segment_error && bfd_link_pic (info))
0a1b45a2 3047 return false;
c96a8570
BS
3048 elf_elfheader (output_bfd)->e_flags |= EF_BFIN_PIC;
3049 }
3050
3051 switch (r_type)
3052 {
3053 case R_BFIN_GOTOFFHI:
3054 /* We need the addend to be applied before we shift the
3055 value right. */
3056 relocation += rel->r_addend;
3057 /* Fall through. */
3058 case R_BFIN_GOTHI:
3059 case R_BFIN_FUNCDESC_GOTHI:
3060 case R_BFIN_FUNCDESC_GOTOFFHI:
3061 relocation >>= 16;
3062 /* Fall through. */
48d502e1 3063
c96a8570
BS
3064 case R_BFIN_GOTLO:
3065 case R_BFIN_FUNCDESC_GOTLO:
3066 case R_BFIN_GOTOFFLO:
3067 case R_BFIN_FUNCDESC_GOTOFFLO:
3068 relocation &= 0xffff;
3069 break;
48d502e1 3070
48d502e1 3071 default:
48d502e1
BS
3072 break;
3073 }
3074
c96a8570 3075 switch (r_type)
48d502e1 3076 {
cb88ce9f
BS
3077 case R_BFIN_PCREL24:
3078 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS
3079 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3080 break;
3081 /* Fall through. */
3082
3083 /* When referencing a GOT entry, a function descriptor or a
3084 PLT, we don't want the addend to apply to the reference,
3085 but rather to the referenced symbol. The actual entry
3086 will have already been created taking the addend into
3087 account, so cancel it out here. */
3088 case R_BFIN_GOT17M4:
3089 case R_BFIN_GOTHI:
3090 case R_BFIN_GOTLO:
3091 case R_BFIN_FUNCDESC_GOT17M4:
3092 case R_BFIN_FUNCDESC_GOTHI:
3093 case R_BFIN_FUNCDESC_GOTLO:
3094 case R_BFIN_FUNCDESC_GOTOFF17M4:
3095 case R_BFIN_FUNCDESC_GOTOFFHI:
3096 case R_BFIN_FUNCDESC_GOTOFFLO:
3097 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF17M4
3098 here, since we do want to apply the addend to the others.
3099 Note that we've applied the addend to GOTOFFHI before we
3100 shifted it right. */
3101 case R_BFIN_GOTOFFHI:
3102 relocation -= rel->r_addend;
3103 break;
3104
3105 default:
3106 break;
48d502e1
BS
3107 }
3108
c96a8570
BS
3109 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
3110 contents, rel->r_offset,
3111 relocation, rel->r_addend);
3112
48d502e1
BS
3113 if (r != bfd_reloc_ok)
3114 {
c96a8570 3115 const char * msg = (const char *) NULL;
48d502e1 3116
c96a8570 3117 switch (r)
48d502e1 3118 {
c96a8570 3119 case bfd_reloc_overflow:
1a72702b 3120 (*info->callbacks->reloc_overflow)
c96a8570
BS
3121 (info, (h ? &h->root : NULL), name, howto->name,
3122 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3123 break;
0f64bb02 3124
c96a8570 3125 case bfd_reloc_undefined:
1a72702b 3126 (*info->callbacks->undefined_symbol)
0a1b45a2 3127 (info, name, input_bfd, input_section, rel->r_offset, true);
c96a8570
BS
3128 break;
3129
3130 case bfd_reloc_outofrange:
3131 msg = _("internal error: out of range error");
3132 break;
3133
3134 case bfd_reloc_notsupported:
3135 msg = _("internal error: unsupported relocation error");
3136 break;
3137
3138 case bfd_reloc_dangerous:
3139 msg = _("internal error: dangerous relocation");
3140 break;
3141
3142 default:
3143 msg = _("internal error: unknown error");
3144 break;
48d502e1 3145 }
c96a8570
BS
3146
3147 if (msg)
1a72702b
AM
3148 (*info->callbacks->warning) (info, msg, name, input_bfd,
3149 input_section, rel->r_offset);
48d502e1
BS
3150 }
3151 }
3152
0a1b45a2 3153 return true;
48d502e1
BS
3154}
3155
48d502e1
BS
3156/* We need dynamic symbols for every section, since segments can
3157 relocate independently. */
0a1b45a2 3158static bool
48d502e1 3159_bfinfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
51408ec2
AM
3160 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3161 asection *p)
48d502e1
BS
3162{
3163 switch (elf_section_data (p)->this_hdr.sh_type)
3164 {
3165 case SHT_PROGBITS:
3166 case SHT_NOBITS:
3167 /* If sh_type is yet undecided, assume it could be
3168 SHT_PROGBITS/SHT_NOBITS. */
3169 case SHT_NULL:
0a1b45a2 3170 return false;
48d502e1
BS
3171
3172 /* There shouldn't be section relative relocations
3173 against any other section. */
3174 default:
0a1b45a2 3175 return true;
48d502e1
BS
3176 }
3177}
3178
3179/* Create a .got section, as well as its additional info field. This
3180 is almost entirely copied from
3181 elflink.c:_bfd_elf_create_got_section(). */
3182
0a1b45a2 3183static bool
48d502e1
BS
3184_bfin_create_got_section (bfd *abfd, struct bfd_link_info *info)
3185{
3186 flagword flags, pltflags;
3187 asection *s;
3188 struct elf_link_hash_entry *h;
48d502e1
BS
3189 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3190 int ptralign;
48d502e1
BS
3191
3192 /* This function may be called more than once. */
ce558b89 3193 s = elf_hash_table (info)->sgot;
3d4d4302 3194 if (s != NULL)
0a1b45a2 3195 return true;
48d502e1
BS
3196
3197 /* Machine specific: although pointers are 32-bits wide, we want the
3198 GOT to be aligned to a 64-bit boundary, such that function
3199 descriptors in it can be accessed with 64-bit loads and
3200 stores. */
3201 ptralign = 3;
3202
3203 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3204 | SEC_LINKER_CREATED);
3205 pltflags = flags;
3206
3d4d4302 3207 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
ce558b89 3208 elf_hash_table (info)->sgot = s;
48d502e1 3209 if (s == NULL
fd361982 3210 || !bfd_set_section_alignment (s, ptralign))
0a1b45a2 3211 return false;
48d502e1 3212
48d502e1
BS
3213 if (bed->want_got_sym)
3214 {
3215 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
3216 (or .got.plt) section. We don't do this in the linker script
3217 because we don't want to define the symbol if we are not creating
3218 a global offset table. */
5592d7ec 3219 h = _bfd_elf_define_linkage_sym (abfd, info, s, "__GLOBAL_OFFSET_TABLE_");
48d502e1
BS
3220 elf_hash_table (info)->hgot = h;
3221 if (h == NULL)
0a1b45a2 3222 return false;
48d502e1
BS
3223
3224 /* Machine-specific: we want the symbol for executables as
3225 well. */
3226 if (! bfd_elf_link_record_dynamic_symbol (info, h))
0a1b45a2 3227 return false;
48d502e1
BS
3228 }
3229
3230 /* The first bit of the global offset table is the header. */
3231 s->size += bed->got_header_size;
3232
3233 /* This is the machine-specific part. Create and initialize section
3234 data for the got. */
3235 if (IS_FDPIC (abfd))
3236 {
48d502e1
BS
3237 bfinfdpic_relocs_info (info) = htab_try_create (1,
3238 bfinfdpic_relocs_info_hash,
3239 bfinfdpic_relocs_info_eq,
3240 (htab_del) NULL);
3241 if (! bfinfdpic_relocs_info (info))
0a1b45a2 3242 return false;
48d502e1 3243
3d4d4302
AM
3244 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
3245 (flags | SEC_READONLY));
48d502e1 3246 if (s == NULL
fd361982 3247 || !bfd_set_section_alignment (s, 2))
0a1b45a2 3248 return false;
48d502e1
BS
3249
3250 bfinfdpic_gotrel_section (info) = s;
3251
3252 /* Machine-specific. */
3d4d4302
AM
3253 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
3254 (flags | SEC_READONLY));
48d502e1 3255 if (s == NULL
fd361982 3256 || !bfd_set_section_alignment (s, 2))
0a1b45a2 3257 return false;
48d502e1
BS
3258
3259 bfinfdpic_gotfixup_section (info) = s;
48d502e1
BS
3260 }
3261
48d502e1
BS
3262 pltflags |= SEC_CODE;
3263 if (bed->plt_not_loaded)
3264 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
3265 if (bed->plt_readonly)
3266 pltflags |= SEC_READONLY;
3267
3d4d4302 3268 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
48d502e1 3269 if (s == NULL
fd361982 3270 || !bfd_set_section_alignment (s, bed->plt_alignment))
0a1b45a2 3271 return false;
48d502e1
BS
3272 /* Blackfin-specific: remember it. */
3273 bfinfdpic_plt_section (info) = s;
3274
3275 if (bed->want_plt_sym)
3276 {
3277 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3278 .plt section. */
48d502e1
BS
3279 struct bfd_link_hash_entry *bh = NULL;
3280
3281 if (! (_bfd_generic_link_add_one_symbol
5592d7ec 3282 (info, abfd, "__PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
0a1b45a2
AM
3283 false, get_elf_backend_data (abfd)->collect, &bh)))
3284 return false;
48d502e1
BS
3285 h = (struct elf_link_hash_entry *) bh;
3286 h->def_regular = 1;
3287 h->type = STT_OBJECT;
3288
0e1862bb 3289 if (! bfd_link_executable (info)
48d502e1 3290 && ! bfd_elf_link_record_dynamic_symbol (info, h))
0a1b45a2 3291 return false;
48d502e1
BS
3292 }
3293
3294 /* Blackfin-specific: we want rel relocations for the plt. */
3d4d4302
AM
3295 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
3296 flags | SEC_READONLY);
48d502e1 3297 if (s == NULL
fd361982 3298 || !bfd_set_section_alignment (s, bed->s->log_file_align))
0a1b45a2 3299 return false;
48d502e1
BS
3300 /* Blackfin-specific: remember it. */
3301 bfinfdpic_pltrel_section (info) = s;
3302
0a1b45a2 3303 return true;
6a9adeca
BS
3304}
3305
3306/* Make sure the got and plt sections exist, and that our pointers in
3307 the link hash table point to them. */
3308
0a1b45a2 3309static bool
6a9adeca
BS
3310elf32_bfinfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3311{
3312 /* This is mostly copied from
3313 elflink.c:_bfd_elf_create_dynamic_sections(). */
3314 flagword flags;
3315 asection *s;
3316 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3317
3318 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3319 | SEC_LINKER_CREATED);
3320
3321 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3322 .rel[a].bss sections. */
3323
48d502e1
BS
3324 /* Blackfin-specific: we want to create the GOT in the Blackfin way. */
3325 if (! _bfin_create_got_section (abfd, info))
0a1b45a2 3326 return false;
48d502e1
BS
3327
3328 /* Blackfin-specific: make sure we created everything we wanted. */
3329 BFD_ASSERT (bfinfdpic_got_section (info) && bfinfdpic_gotrel_section (info)
3330 /* && bfinfdpic_gotfixup_section (info) */
3331 && bfinfdpic_plt_section (info)
3332 && bfinfdpic_pltrel_section (info));
3333
3334 if (bed->want_dynbss)
3335 {
3336 /* The .dynbss section is a place to put symbols which are defined
3337 by dynamic objects, are referenced by regular objects, and are
3338 not functions. We must allocate space for them in the process
3339 image and use a R_*_COPY reloc to tell the dynamic linker to
3340 initialize them at run time. The linker script puts the .dynbss
3341 section into the .bss section of the final image. */
3d4d4302
AM
3342 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3343 SEC_ALLOC | SEC_LINKER_CREATED);
117ed4f8 3344 if (s == NULL)
0a1b45a2 3345 return false;
48d502e1
BS
3346
3347 /* The .rel[a].bss section holds copy relocs. This section is not
3d4d4302
AM
3348 normally needed. We need to create it here, though, so that the
3349 linker will map it to an output section. We can't just create it
3350 only if we need it, because we will not know whether we need it
3351 until we have seen all the input files, and the first time the
3352 main linker code calls BFD after examining all the input files
3353 (size_dynamic_sections) the input sections have already been
3354 mapped to the output sections. If the section turns out not to
3355 be needed, we can discard it later. We will never need this
3356 section when generating a shared object, since they do not use
3357 copy relocs. */
0e1862bb 3358 if (! bfd_link_pic (info))
48d502e1 3359 {
3d4d4302
AM
3360 s = bfd_make_section_anyway_with_flags (abfd,
3361 ".rela.bss",
3362 flags | SEC_READONLY);
48d502e1 3363 if (s == NULL
fd361982 3364 || !bfd_set_section_alignment (s, bed->s->log_file_align))
0a1b45a2 3365 return false;
48d502e1
BS
3366 }
3367 }
3368
0a1b45a2 3369 return true;
48d502e1
BS
3370}
3371
48d502e1
BS
3372/* Compute the total GOT size required by each symbol in each range.
3373 Symbols may require up to 4 words in the GOT: an entry pointing to
3374 the symbol, an entry pointing to its function descriptor, and a
3375 private function descriptors taking two words. */
3376
6a9adeca
BS
3377static void
3378_bfinfdpic_count_nontls_entries (struct bfinfdpic_relocs_info *entry,
3379 struct _bfinfdpic_dynamic_got_info *dinfo)
48d502e1 3380{
48d502e1
BS
3381 /* Allocate space for a GOT entry pointing to the symbol. */
3382 if (entry->got17m4)
3383 dinfo->got17m4 += 4;
3384 else if (entry->gothilo)
3385 dinfo->gothilo += 4;
3386 else
3387 entry->relocs32--;
3388 entry->relocs32++;
3389
3390 /* Allocate space for a GOT entry pointing to the function
3391 descriptor. */
3392 if (entry->fdgot17m4)
3393 dinfo->got17m4 += 4;
3394 else if (entry->fdgothilo)
3395 dinfo->gothilo += 4;
3396 else
3397 entry->relocsfd--;
3398 entry->relocsfd++;
3399
3400 /* Decide whether we need a PLT entry, a function descriptor in the
3401 GOT, and a lazy PLT entry for this symbol. */
3402 entry->plt = entry->call
3403 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3404 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3405 entry->privfd = entry->plt
3406 || entry->fdgoff17m4 || entry->fdgoffhilo
3407 || ((entry->fd || entry->fdgot17m4 || entry->fdgothilo)
3408 && (entry->symndx != -1
3409 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
3410 entry->lazyplt = entry->privfd
3411 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3412 && ! (dinfo->info->flags & DF_BIND_NOW)
3413 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3414
3415 /* Allocate space for a function descriptor. */
3416 if (entry->fdgoff17m4)
3417 dinfo->fd17m4 += 8;
3418 else if (entry->privfd && entry->plt)
3419 dinfo->fdplt += 8;
3420 else if (entry->privfd)
3421 dinfo->fdhilo += 8;
3422 else
3423 entry->relocsfdv--;
3424 entry->relocsfdv++;
3425
3426 if (entry->lazyplt)
3427 dinfo->lzplt += LZPLT_NORMAL_SIZE;
6a9adeca
BS
3428}
3429
3430/* Compute the number of dynamic relocations and fixups that a symbol
3431 requires, and add (or subtract) from the grand and per-symbol
3432 totals. */
3433
3434static void
3435_bfinfdpic_count_relocs_fixups (struct bfinfdpic_relocs_info *entry,
3436 struct _bfinfdpic_dynamic_got_info *dinfo,
0a1b45a2 3437 bool subtract)
6a9adeca
BS
3438{
3439 bfd_vma relocs = 0, fixups = 0;
48d502e1 3440
3cbc1e5e 3441 if (!bfd_link_pde (dinfo->info))
48d502e1
BS
3442 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv;
3443 else
3444 {
3445 if (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
3446 {
3447 if (entry->symndx != -1
3448 || entry->d.h->root.type != bfd_link_hash_undefweak)
3449 fixups += entry->relocs32 + 2 * entry->relocsfdv;
3450 }
3451 else
3452 relocs += entry->relocs32 + entry->relocsfdv;
3453
3454 if (entry->symndx != -1
3455 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
3456 {
3457 if (entry->symndx != -1
3458 || entry->d.h->root.type != bfd_link_hash_undefweak)
3459 fixups += entry->relocsfd;
3460 }
3461 else
3462 relocs += entry->relocsfd;
3463 }
3464
6a9adeca
BS
3465 if (subtract)
3466 {
3467 relocs = - relocs;
3468 fixups = - fixups;
3469 }
3470
48d502e1
BS
3471 entry->dynrelocs += relocs;
3472 entry->fixups += fixups;
3473 dinfo->relocs += relocs;
3474 dinfo->fixups += fixups;
6a9adeca
BS
3475}
3476
3477/* Compute the total GOT and PLT size required by each symbol in each range. *
3478 Symbols may require up to 4 words in the GOT: an entry pointing to
3479 the symbol, an entry pointing to its function descriptor, and a
3480 private function descriptors taking two words. */
3481
3482static int
3483_bfinfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
3484{
3485 struct bfinfdpic_relocs_info *entry = *entryp;
3486 struct _bfinfdpic_dynamic_got_info *dinfo = dinfo_;
3487
3488 _bfinfdpic_count_nontls_entries (entry, dinfo);
3489
0a1b45a2 3490 _bfinfdpic_count_relocs_fixups (entry, dinfo, false);
48d502e1
BS
3491
3492 return 1;
3493}
3494
3495/* This structure is used to assign offsets to got entries, function
3496 descriptors, plt entries and lazy plt entries. */
3497
3498struct _bfinfdpic_dynamic_got_plt_info
3499{
3500 /* Summary information collected with _bfinfdpic_count_got_plt_entries. */
3501 struct _bfinfdpic_dynamic_got_info g;
3502
3503 /* For each addressable range, we record a MAX (positive) and MIN
3504 (negative) value. CUR is used to assign got entries, and it's
3505 incremented from an initial positive value to MAX, then from MIN
3506 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
3507 assign function descriptors, and it's decreased from an initial
3508 non-positive value to MIN, then from MAX down to CUR (unless CUR
3509 wraps around first). All of MIN, MAX, CUR and FDCUR always point
3510 to even words. ODD, if non-zero, indicates an odd word to be
3511 used for the next got entry, otherwise CUR is used and
3512 incremented by a pair of words, wrapping around when it reaches
3513 MAX. FDCUR is decremented (and wrapped) before the next function
3514 descriptor is chosen. FDPLT indicates the number of remaining
3515 slots that can be used for function descriptors used only by PLT
3516 entries. */
3517 struct _bfinfdpic_dynamic_got_alloc_data
3518 {
3519 bfd_signed_vma max, cur, odd, fdcur, min;
3520 bfd_vma fdplt;
3521 } got17m4, gothilo;
3522};
3523
3524/* Determine the positive and negative ranges to be used by each
3525 offset range in the GOT. FDCUR and CUR, that must be aligned to a
3526 double-word boundary, are the minimum (negative) and maximum
3527 (positive) GOT offsets already used by previous ranges, except for
3528 an ODD entry that may have been left behind. GOT and FD indicate
3529 the size of GOT entries and function descriptors that must be
3530 placed within the range from -WRAP to WRAP. If there's room left,
3531 up to FDPLT bytes should be reserved for additional function
3532 descriptors. */
3533
3534inline static bfd_signed_vma
3535_bfinfdpic_compute_got_alloc_data (struct _bfinfdpic_dynamic_got_alloc_data *gad,
3536 bfd_signed_vma fdcur,
3537 bfd_signed_vma odd,
3538 bfd_signed_vma cur,
3539 bfd_vma got,
3540 bfd_vma fd,
3541 bfd_vma fdplt,
3542 bfd_vma wrap)
3543{
3544 bfd_signed_vma wrapmin = -wrap;
3545
3546 /* Start at the given initial points. */
3547 gad->fdcur = fdcur;
3548 gad->cur = cur;
3549
3550 /* If we had an incoming odd word and we have any got entries that
3551 are going to use it, consume it, otherwise leave gad->odd at
3552 zero. We might force gad->odd to zero and return the incoming
3553 odd such that it is used by the next range, but then GOT entries
3554 might appear to be out of order and we wouldn't be able to
3555 shorten the GOT by one word if it turns out to end with an
3556 unpaired GOT entry. */
3557 if (odd && got)
3558 {
3559 gad->odd = odd;
3560 got -= 4;
3561 odd = 0;
3562 }
3563 else
3564 gad->odd = 0;
3565
3566 /* If we're left with an unpaired GOT entry, compute its location
3567 such that we can return it. Otherwise, if got doesn't require an
3568 odd number of words here, either odd was already zero in the
3569 block above, or it was set to zero because got was non-zero, or
3570 got was already zero. In the latter case, we want the value of
3571 odd to carry over to the return statement, so we don't want to
3572 reset odd unless the condition below is true. */
3573 if (got & 4)
3574 {
3575 odd = cur + got;
3576 got += 4;
3577 }
3578
3579 /* Compute the tentative boundaries of this range. */
3580 gad->max = cur + got;
3581 gad->min = fdcur - fd;
3582 gad->fdplt = 0;
3583
3584 /* If function descriptors took too much space, wrap some of them
3585 around. */
3586 if (gad->min < wrapmin)
3587 {
3588 gad->max += wrapmin - gad->min;
3589 gad->min = wrapmin;
3590 }
3591 /* If there is space left and we have function descriptors
3592 referenced in PLT entries that could take advantage of shorter
3593 offsets, place them here. */
3594 else if (fdplt && gad->min > wrapmin)
3595 {
3596 bfd_vma fds;
3597 if ((bfd_vma) (gad->min - wrapmin) < fdplt)
3598 fds = gad->min - wrapmin;
3599 else
3600 fds = fdplt;
3601
3602 fdplt -= fds;
3603 gad->min -= fds;
3604 gad->fdplt += fds;
3605 }
3606
3607 /* If GOT entries took too much space, wrap some of them around.
3608 This may well cause gad->min to become lower than wrapmin. This
3609 will cause a relocation overflow later on, so we don't have to
3610 report it here . */
3611 if ((bfd_vma) gad->max > wrap)
3612 {
3613 gad->min -= gad->max - wrap;
3614 gad->max = wrap;
3615 }
3616 /* If there is more space left, try to place some more function
3617 descriptors for PLT entries. */
3618 else if (fdplt && (bfd_vma) gad->max < wrap)
3619 {
3620 bfd_vma fds;
3621 if ((bfd_vma) (wrap - gad->max) < fdplt)
3622 fds = wrap - gad->max;
3623 else
3624 fds = fdplt;
3625
3626 fdplt -= fds;
3627 gad->max += fds;
3628 gad->fdplt += fds;
3629 }
3630
3631 /* If odd was initially computed as an offset past the wrap point,
3632 wrap it around. */
3633 if (odd > gad->max)
3634 odd = gad->min + odd - gad->max;
3635
3636 /* _bfinfdpic_get_got_entry() below will always wrap gad->cur if needed
3637 before returning, so do it here too. This guarantees that,
3638 should cur and fdcur meet at the wrap point, they'll both be
3639 equal to min. */
3640 if (gad->cur == gad->max)
3641 gad->cur = gad->min;
3642
3643 return odd;
3644}
3645
3646/* Compute the location of the next GOT entry, given the allocation
3647 data for a range. */
3648
3649inline static bfd_signed_vma
3650_bfinfdpic_get_got_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3651{
3652 bfd_signed_vma ret;
3653
3654 if (gad->odd)
3655 {
3656 /* If there was an odd word left behind, use it. */
3657 ret = gad->odd;
3658 gad->odd = 0;
3659 }
3660 else
3661 {
3662 /* Otherwise, use the word pointed to by cur, reserve the next
3663 as an odd word, and skip to the next pair of words, possibly
3664 wrapping around. */
3665 ret = gad->cur;
3666 gad->odd = gad->cur + 4;
3667 gad->cur += 8;
3668 if (gad->cur == gad->max)
3669 gad->cur = gad->min;
3670 }
3671
3672 return ret;
3673}
3674
3675/* Compute the location of the next function descriptor entry in the
3676 GOT, given the allocation data for a range. */
3677
3678inline static bfd_signed_vma
3679_bfinfdpic_get_fd_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3680{
3681 /* If we're at the bottom, wrap around, and only then allocate the
3682 next pair of words. */
3683 if (gad->fdcur == gad->min)
3684 gad->fdcur = gad->max;
3685 return gad->fdcur -= 8;
3686}
3687
3688/* Assign GOT offsets for every GOT entry and function descriptor.
3689 Doing everything in a single pass is tricky. */
3690
3691static int
3692_bfinfdpic_assign_got_entries (void **entryp, void *info_)
3693{
3694 struct bfinfdpic_relocs_info *entry = *entryp;
3695 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3696
3697 if (entry->got17m4)
3698 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3699 else if (entry->gothilo)
3700 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3701
3702 if (entry->fdgot17m4)
3703 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3704 else if (entry->fdgothilo)
3705 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3706
3707 if (entry->fdgoff17m4)
3708 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3709 else if (entry->plt && dinfo->got17m4.fdplt)
3710 {
3711 dinfo->got17m4.fdplt -= 8;
3712 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3713 }
3714 else if (entry->plt)
3715 {
3716 dinfo->gothilo.fdplt -= 8;
3717 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3718 }
3719 else if (entry->privfd)
3720 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3721
3722 return 1;
3723}
3724
3725/* Assign GOT offsets to private function descriptors used by PLT
3726 entries (or referenced by 32-bit offsets), as well as PLT entries
3727 and lazy PLT entries. */
3728
3729static int
3730_bfinfdpic_assign_plt_entries (void **entryp, void *info_)
3731{
3732 struct bfinfdpic_relocs_info *entry = *entryp;
3733 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3734
3735 /* If this symbol requires a local function descriptor, allocate
3736 one. */
3737 if (entry->privfd && entry->fd_entry == 0)
3738 {
3739 if (dinfo->got17m4.fdplt)
3740 {
3741 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3742 dinfo->got17m4.fdplt -= 8;
3743 }
3744 else
3745 {
3746 BFD_ASSERT (dinfo->gothilo.fdplt);
3747 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3748 dinfo->gothilo.fdplt -= 8;
3749 }
3750 }
3751
3752 if (entry->plt)
3753 {
3754 int size;
3755
3756 /* We use the section's raw size to mark the location of the
3757 next PLT entry. */
3758 entry->plt_entry = bfinfdpic_plt_section (dinfo->g.info)->size;
3759
3760 /* Figure out the length of this PLT entry based on the
3761 addressing mode we need to reach the function descriptor. */
3762 BFD_ASSERT (entry->fd_entry);
3763 if (entry->fd_entry >= -(1 << (18 - 1))
3764 && entry->fd_entry + 4 < (1 << (18 - 1)))
3765 size = 10;
3766 else
3767 size = 16;
3768
3769 bfinfdpic_plt_section (dinfo->g.info)->size += size;
3770 }
3771
3772 if (entry->lazyplt)
3773 {
3774 entry->lzplt_entry = dinfo->g.lzplt;
3775 dinfo->g.lzplt += LZPLT_NORMAL_SIZE;
3776 /* If this entry is the one that gets the resolver stub, account
3777 for the additional instruction. */
3778 if (entry->lzplt_entry % BFINFDPIC_LZPLT_BLOCK_SIZE
3779 == BFINFDPIC_LZPLT_RESOLV_LOC)
3780 dinfo->g.lzplt += LZPLT_RESOLVER_EXTRA;
3781 }
3782
3783 return 1;
3784}
3785
6a9adeca
BS
3786/* Cancel out any effects of calling _bfinfdpic_assign_got_entries and
3787 _bfinfdpic_assign_plt_entries. */
3788
3789static int
3790_bfinfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
3791{
3792 struct bfinfdpic_relocs_info *entry = *entryp;
3793
3794 entry->got_entry = 0;
3795 entry->fdgot_entry = 0;
3796 entry->fd_entry = 0;
3797 entry->plt_entry = (bfd_vma)-1;
3798 entry->lzplt_entry = (bfd_vma)-1;
3799
3800 return 1;
3801}
3802
48d502e1
BS
3803/* Follow indirect and warning hash entries so that each got entry
3804 points to the final symbol definition. P must point to a pointer
3805 to the hash table we're traversing. Since this traversal may
3806 modify the hash table, we set this pointer to NULL to indicate
3807 we've made a potentially-destructive change to the hash table, so
3808 the traversal must be restarted. */
3809static int
3810_bfinfdpic_resolve_final_relocs_info (void **entryp, void *p)
3811{
3812 struct bfinfdpic_relocs_info *entry = *entryp;
3813 htab_t *htab = p;
3814
3815 if (entry->symndx == -1)
3816 {
3817 struct elf_link_hash_entry *h = entry->d.h;
3818 struct bfinfdpic_relocs_info *oentry;
3819
3820 while (h->root.type == bfd_link_hash_indirect
3821 || h->root.type == bfd_link_hash_warning)
3822 h = (struct elf_link_hash_entry *)h->root.u.i.link;
3823
3824 if (entry->d.h == h)
3825 return 1;
3826
3827 oentry = bfinfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
3828 NO_INSERT);
3829
3830 if (oentry)
3831 {
3832 /* Merge the two entries. */
3833 bfinfdpic_pic_merge_early_relocs_info (oentry, entry);
3834 htab_clear_slot (*htab, entryp);
3835 return 1;
3836 }
3837
3838 entry->d.h = h;
3839
3840 /* If we can't find this entry with the new bfd hash, re-insert
3841 it, and get the traversal restarted. */
3842 if (! htab_find (*htab, entry))
3843 {
3844 htab_clear_slot (*htab, entryp);
3845 entryp = htab_find_slot (*htab, entry, INSERT);
3846 if (! *entryp)
3847 *entryp = entry;
3848 /* Abort the traversal, since the whole table may have
3849 moved, and leave it up to the parent to restart the
3850 process. */
3851 *(htab_t *)p = NULL;
3852 return 0;
3853 }
3854 }
3855
3856 return 1;
3857}
3858
6a9adeca
BS
3859/* Compute the total size of the GOT, the PLT, the dynamic relocations
3860 section and the rofixup section. Assign locations for GOT and PLT
3861 entries. */
48d502e1 3862
0a1b45a2 3863static bool
6a9adeca
BS
3864_bfinfdpic_size_got_plt (bfd *output_bfd,
3865 struct _bfinfdpic_dynamic_got_plt_info *gpinfop)
48d502e1 3866{
48d502e1
BS
3867 bfd_signed_vma odd;
3868 bfd_vma limit;
6a9adeca
BS
3869 struct bfd_link_info *info = gpinfop->g.info;
3870 bfd *dynobj = elf_hash_table (info)->dynobj;
48d502e1 3871
6a9adeca
BS
3872 memcpy (bfinfdpic_dynamic_got_plt_info (info), &gpinfop->g,
3873 sizeof (gpinfop->g));
48d502e1
BS
3874
3875 odd = 12;
3876 /* Compute the total size taken by entries in the 18-bit range,
3877 to tell how many PLT function descriptors we can bring into it
3878 without causing it to overflow. */
6a9adeca 3879 limit = odd + gpinfop->g.got17m4 + gpinfop->g.fd17m4;
48d502e1
BS
3880 if (limit < (bfd_vma)1 << 18)
3881 limit = ((bfd_vma)1 << 18) - limit;
3882 else
3883 limit = 0;
6a9adeca
BS
3884 if (gpinfop->g.fdplt < limit)
3885 limit = gpinfop->g.fdplt;
48d502e1
BS
3886
3887 /* Determine the ranges of GOT offsets that we can use for each
3888 range of addressing modes. */
6a9adeca 3889 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->got17m4,
48d502e1
BS
3890 0,
3891 odd,
3892 16,
6a9adeca
BS
3893 gpinfop->g.got17m4,
3894 gpinfop->g.fd17m4,
48d502e1
BS
3895 limit,
3896 (bfd_vma)1 << (18-1));
6a9adeca
BS
3897 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->gothilo,
3898 gpinfop->got17m4.min,
48d502e1 3899 odd,
6a9adeca
BS
3900 gpinfop->got17m4.max,
3901 gpinfop->g.gothilo,
3902 gpinfop->g.fdhilo,
3903 gpinfop->g.fdplt - gpinfop->got17m4.fdplt,
48d502e1
BS
3904 (bfd_vma)1 << (32-1));
3905
3906 /* Now assign (most) GOT offsets. */
3907 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_got_entries,
6a9adeca 3908 gpinfop);
48d502e1 3909
6a9adeca
BS
3910 bfinfdpic_got_section (info)->size = gpinfop->gothilo.max
3911 - gpinfop->gothilo.min
48d502e1
BS
3912 /* If an odd word is the last word of the GOT, we don't need this
3913 word to be part of the GOT. */
6a9adeca 3914 - (odd + 4 == gpinfop->gothilo.max ? 4 : 0);
48d502e1
BS
3915 if (bfinfdpic_got_section (info)->size == 0)
3916 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3917 else if (bfinfdpic_got_section (info)->size == 12
3918 && ! elf_hash_table (info)->dynamic_sections_created)
3919 {
3920 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3921 bfinfdpic_got_section (info)->size = 0;
3922 }
3923 else
3924 {
3925 bfinfdpic_got_section (info)->contents =
3926 (bfd_byte *) bfd_zalloc (dynobj,
3927 bfinfdpic_got_section (info)->size);
3928 if (bfinfdpic_got_section (info)->contents == NULL)
0a1b45a2 3929 return false;
48d502e1
BS
3930 }
3931
3932 if (elf_hash_table (info)->dynamic_sections_created)
3933 /* Subtract the number of lzplt entries, since those will generate
3934 relocations in the pltrel section. */
3935 bfinfdpic_gotrel_section (info)->size =
6a9adeca 3936 (gpinfop->g.relocs - gpinfop->g.lzplt / LZPLT_NORMAL_SIZE)
48d502e1
BS
3937 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3938 else
6a9adeca 3939 BFD_ASSERT (gpinfop->g.relocs == 0);
48d502e1
BS
3940 if (bfinfdpic_gotrel_section (info)->size == 0)
3941 bfinfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
3942 else
3943 {
3944 bfinfdpic_gotrel_section (info)->contents =
3945 (bfd_byte *) bfd_zalloc (dynobj,
3946 bfinfdpic_gotrel_section (info)->size);
3947 if (bfinfdpic_gotrel_section (info)->contents == NULL)
0a1b45a2 3948 return false;
48d502e1
BS
3949 }
3950
6a9adeca 3951 bfinfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
48d502e1
BS
3952 if (bfinfdpic_gotfixup_section (info)->size == 0)
3953 bfinfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
3954 else
3955 {
3956 bfinfdpic_gotfixup_section (info)->contents =
3957 (bfd_byte *) bfd_zalloc (dynobj,
3958 bfinfdpic_gotfixup_section (info)->size);
3959 if (bfinfdpic_gotfixup_section (info)->contents == NULL)
0a1b45a2 3960 return false;
48d502e1
BS
3961 }
3962
3963 if (elf_hash_table (info)->dynamic_sections_created)
d3e32c2e
JZ
3964 bfinfdpic_pltrel_section (info)->size =
3965 gpinfop->g.lzplt / LZPLT_NORMAL_SIZE * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3966 if (bfinfdpic_pltrel_section (info)->size == 0)
3967 bfinfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
3968 else
48d502e1 3969 {
d3e32c2e
JZ
3970 bfinfdpic_pltrel_section (info)->contents =
3971 (bfd_byte *) bfd_zalloc (dynobj,
3972 bfinfdpic_pltrel_section (info)->size);
3973 if (bfinfdpic_pltrel_section (info)->contents == NULL)
0a1b45a2 3974 return false;
48d502e1
BS
3975 }
3976
3977 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
3978 such that there's room for the additional instruction needed to
3979 call the resolver. Since _bfinfdpic_assign_got_entries didn't
3980 account for them, our block size is 4 bytes smaller than the real
3981 block size. */
3982 if (elf_hash_table (info)->dynamic_sections_created)
3983 {
6a9adeca
BS
3984 bfinfdpic_plt_section (info)->size = gpinfop->g.lzplt
3985 + ((gpinfop->g.lzplt + (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) - LZPLT_NORMAL_SIZE)
48d502e1
BS
3986 / (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) * LZPLT_RESOLVER_EXTRA);
3987 }
3988
3989 /* Reset it, such that _bfinfdpic_assign_plt_entries() can use it to
3990 actually assign lazy PLT entries addresses. */
6a9adeca 3991 gpinfop->g.lzplt = 0;
48d502e1
BS
3992
3993 /* Save information that we're going to need to generate GOT and PLT
3994 entries. */
6a9adeca 3995 bfinfdpic_got_initial_offset (info) = -gpinfop->gothilo.min;
48d502e1
BS
3996
3997 if (get_elf_backend_data (output_bfd)->want_got_sym)
3998 elf_hash_table (info)->hgot->root.u.def.value
6a9adeca 3999 = bfinfdpic_got_initial_offset (info);
48d502e1
BS
4000
4001 if (elf_hash_table (info)->dynamic_sections_created)
4002 bfinfdpic_plt_initial_offset (info) =
4003 bfinfdpic_plt_section (info)->size;
4004
4005 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_plt_entries,
6a9adeca 4006 gpinfop);
48d502e1
BS
4007
4008 /* Allocate the PLT section contents only after
4009 _bfinfdpic_assign_plt_entries has a chance to add the size of the
4010 non-lazy PLT entries. */
d3e32c2e
JZ
4011 if (bfinfdpic_plt_section (info)->size == 0)
4012 bfinfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
4013 else
48d502e1 4014 {
d3e32c2e
JZ
4015 bfinfdpic_plt_section (info)->contents =
4016 (bfd_byte *) bfd_zalloc (dynobj,
4017 bfinfdpic_plt_section (info)->size);
4018 if (bfinfdpic_plt_section (info)->contents == NULL)
0a1b45a2 4019 return false;
48d502e1
BS
4020 }
4021
0a1b45a2 4022 return true;
6a9adeca
BS
4023}
4024
4025/* Set the sizes of the dynamic sections. */
4026
0a1b45a2 4027static bool
6a9adeca
BS
4028elf32_bfinfdpic_size_dynamic_sections (bfd *output_bfd,
4029 struct bfd_link_info *info)
4030{
4031 struct elf_link_hash_table *htab;
4032 bfd *dynobj;
4033 asection *s;
4034 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4035
4036 htab = elf_hash_table (info);
4037 dynobj = htab->dynobj;
4038 BFD_ASSERT (dynobj != NULL);
4039
4040 if (htab->dynamic_sections_created)
4041 {
4042 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 4043 if (bfd_link_executable (info) && !info->nointerp)
6a9adeca 4044 {
3d4d4302 4045 s = bfd_get_linker_section (dynobj, ".interp");
6a9adeca
BS
4046 BFD_ASSERT (s != NULL);
4047 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4048 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
4049 }
4050 }
4051
4052 memset (&gpinfo, 0, sizeof (gpinfo));
4053 gpinfo.g.info = info;
4054
4055 for (;;)
4056 {
4057 htab_t relocs = bfinfdpic_relocs_info (info);
4058
4059 htab_traverse (relocs, _bfinfdpic_resolve_final_relocs_info, &relocs);
4060
4061 if (relocs == bfinfdpic_relocs_info (info))
4062 break;
4063 }
4064
4065 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_count_got_plt_entries,
4066 &gpinfo.g);
4067
4068 /* Allocate space to save the summary information, we're going to
4069 use it if we're doing relaxations. */
4070 bfinfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
4071
4072 if (!_bfinfdpic_size_got_plt (output_bfd, &gpinfo))
0a1b45a2 4073 return false;
6a9adeca 4074
3d4d4302 4075 s = bfd_get_linker_section (dynobj, ".dynbss");
153d38f6
JZ
4076 if (s && s->size == 0)
4077 s->flags |= SEC_EXCLUDE;
4078
3d4d4302 4079 s = bfd_get_linker_section (dynobj, ".rela.bss");
153d38f6
JZ
4080 if (s && s->size == 0)
4081 s->flags |= SEC_EXCLUDE;
4082
0a1b45a2 4083 return _bfd_elf_add_dynamic_tags (output_bfd, info, true);
48d502e1
BS
4084}
4085
0a1b45a2 4086static bool
48d502e1
BS
4087elf32_bfinfdpic_always_size_sections (bfd *output_bfd,
4088 struct bfd_link_info *info)
4089{
0e1862bb 4090 if (!bfd_link_relocatable (info)
04c3a755
NS
4091 && !bfd_elf_stack_segment_size (output_bfd, info,
4092 "__stacksize", DEFAULT_STACK_SIZE))
0a1b45a2 4093 return false;
48d502e1 4094
0a1b45a2 4095 return true;
48d502e1
BS
4096}
4097
6a9adeca
BS
4098/* Check whether any of the relocations was optimized away, and
4099 subtract it from the relocation or fixup count. */
0a1b45a2 4100static bool
6a9adeca 4101_bfinfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
2c3fc389 4102 struct bfd_link_info *info,
0a1b45a2 4103 bool *changed)
6a9adeca
BS
4104{
4105 Elf_Internal_Shdr *symtab_hdr;
4106 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4107 Elf_Internal_Rela *rel, *erel;
4108
4109 if ((sec->flags & SEC_RELOC) == 0
4110 || sec->reloc_count == 0)
0a1b45a2 4111 return true;
6a9adeca
BS
4112
4113 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4114 sym_hashes = elf_sym_hashes (abfd);
4115 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
4116 if (!elf_bad_symtab (abfd))
4117 sym_hashes_end -= symtab_hdr->sh_info;
4118
4119 rel = elf_section_data (sec)->relocs;
4120
4121 /* Now examine each relocation. */
4122 for (erel = rel + sec->reloc_count; rel < erel; rel++)
4123 {
4124 struct elf_link_hash_entry *h;
4125 unsigned long r_symndx;
4126 struct bfinfdpic_relocs_info *picrel;
4127 struct _bfinfdpic_dynamic_got_info *dinfo;
4128
4129 if (ELF32_R_TYPE (rel->r_info) != R_BFIN_BYTE4_DATA
4130 && ELF32_R_TYPE (rel->r_info) != R_BFIN_FUNCDESC)
4131 continue;
4132
4133 if (_bfd_elf_section_offset (sec->output_section->owner,
4134 info, sec, rel->r_offset)
4135 != (bfd_vma)-1)
4136 continue;
4137
4138 r_symndx = ELF32_R_SYM (rel->r_info);
4139 if (r_symndx < symtab_hdr->sh_info)
4140 h = NULL;
4141 else
4142 {
4143 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4144 while (h->root.type == bfd_link_hash_indirect
4145 || h->root.type == bfd_link_hash_warning)
4146 h = (struct elf_link_hash_entry *)h->root.u.i.link;
4147 }
4148
4149 if (h != NULL)
4150 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4151 abfd, h,
4152 rel->r_addend, NO_INSERT);
4153 else
4154 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info (info),
4155 abfd, r_symndx,
4156 rel->r_addend, NO_INSERT);
4157
4158 if (! picrel)
0a1b45a2 4159 return false;
6a9adeca 4160
0a1b45a2 4161 *changed = true;
6a9adeca
BS
4162 dinfo = bfinfdpic_dynamic_got_plt_info (info);
4163
0a1b45a2 4164 _bfinfdpic_count_relocs_fixups (picrel, dinfo, true);
6a9adeca
BS
4165 if (ELF32_R_TYPE (rel->r_info) == R_BFIN_BYTE4_DATA)
4166 picrel->relocs32--;
4167 else /* we know (ELF32_R_TYPE (rel->r_info) == R_BFIN_FUNCDESC) */
4168 picrel->relocsfd--;
0a1b45a2 4169 _bfinfdpic_count_relocs_fixups (picrel, dinfo, false);
6a9adeca
BS
4170 }
4171
0a1b45a2 4172 return true;
6a9adeca
BS
4173}
4174
0a1b45a2 4175static bool
6a9adeca
BS
4176bfinfdpic_elf_discard_info (bfd *ibfd,
4177 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
4178 struct bfd_link_info *info)
4179{
0a1b45a2 4180 bool changed = false;
6a9adeca
BS
4181 asection *s;
4182 bfd *obfd = NULL;
4183
4184 /* Account for relaxation of .eh_frame section. */
4185 for (s = ibfd->sections; s; s = s->next)
dbaa2011 4186 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
6a9adeca
BS
4187 {
4188 if (!_bfinfdpic_check_discarded_relocs (ibfd, s, info, &changed))
0a1b45a2 4189 return false;
6a9adeca
BS
4190 obfd = s->output_section->owner;
4191 }
4192
4193 if (changed)
4194 {
4195 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4196
4197 memset (&gpinfo, 0, sizeof (gpinfo));
4198 memcpy (&gpinfo.g, bfinfdpic_dynamic_got_plt_info (info),
4199 sizeof (gpinfo.g));
4200
4201 /* Clear GOT and PLT assignments. */
4202 htab_traverse (bfinfdpic_relocs_info (info),
4203 _bfinfdpic_reset_got_plt_entries,
4204 NULL);
4205
4206 if (!_bfinfdpic_size_got_plt (obfd, &gpinfo))
0a1b45a2 4207 return false;
6a9adeca
BS
4208 }
4209
0a1b45a2 4210 return true;
6a9adeca
BS
4211}
4212
0a1b45a2 4213static bool
48d502e1
BS
4214elf32_bfinfdpic_finish_dynamic_sections (bfd *output_bfd,
4215 struct bfd_link_info *info)
4216{
4217 bfd *dynobj;
4218 asection *sdyn;
4219
4220 dynobj = elf_hash_table (info)->dynobj;
4221
4222 if (bfinfdpic_got_section (info))
4223 {
4224 BFD_ASSERT (bfinfdpic_gotrel_section (info)->size
ed3056eb
NC
4225 /* PR 17334: It appears that the GOT section can end up
4226 being bigger than the number of relocs. Presumably
4227 because some relocs have been deleted. A test case has
4228 yet to be generated for verify this, but in the meantime
4229 the test below has been changed from == to >= so that
4230 applications can continue to be built. */
4231 >= (bfinfdpic_gotrel_section (info)->reloc_count
48d502e1
BS
4232 * sizeof (Elf32_External_Rel)));
4233
4234 if (bfinfdpic_gotfixup_section (info))
4235 {
4236 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
4237 bfd_vma got_value = hgot->root.u.def.value
4238 + hgot->root.u.def.section->output_section->vma
4239 + hgot->root.u.def.section->output_offset;
4240
4241 _bfinfdpic_add_rofixup (output_bfd, bfinfdpic_gotfixup_section (info),
4242 got_value, 0);
4243
4244 if (bfinfdpic_gotfixup_section (info)->size
4245 != (bfinfdpic_gotfixup_section (info)->reloc_count * 4))
0f64bb02 4246 {
4eca0228 4247 _bfd_error_handler
48d502e1 4248 ("LINKER BUG: .rofixup section size mismatch");
0a1b45a2 4249 return false;
0f64bb02
CM
4250 }
4251 }
4252 }
48d502e1
BS
4253 if (elf_hash_table (info)->dynamic_sections_created)
4254 {
4255 BFD_ASSERT (bfinfdpic_pltrel_section (info)->size
4256 == (bfinfdpic_pltrel_section (info)->reloc_count
4257 * sizeof (Elf32_External_Rel)));
4258 }
4259
3d4d4302 4260 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
48d502e1
BS
4261
4262 if (elf_hash_table (info)->dynamic_sections_created)
4263 {
4264 Elf32_External_Dyn * dyncon;
4265 Elf32_External_Dyn * dynconend;
4266
4267 BFD_ASSERT (sdyn != NULL);
4268
4269 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4270 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4271
4272 for (; dyncon < dynconend; dyncon++)
4273 {
4274 Elf_Internal_Dyn dyn;
4275
4276 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4277
4278 switch (dyn.d_tag)
4279 {
4280 default:
4281 break;
4282
4283 case DT_PLTGOT:
4284 dyn.d_un.d_ptr = bfinfdpic_got_section (info)->output_section->vma
4285 + bfinfdpic_got_section (info)->output_offset
4286 + bfinfdpic_got_initial_offset (info);
4287 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4288 break;
4289
4290 case DT_JMPREL:
4291 dyn.d_un.d_ptr = bfinfdpic_pltrel_section (info)
4292 ->output_section->vma
4293 + bfinfdpic_pltrel_section (info)->output_offset;
4294 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4295 break;
4296
4297 case DT_PLTRELSZ:
4298 dyn.d_un.d_val = bfinfdpic_pltrel_section (info)->size;
4299 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4300 break;
4301 }
4302 }
4303 }
4304
0a1b45a2 4305 return true;
48d502e1
BS
4306}
4307
4308/* Adjust a symbol defined by a dynamic object and referenced by a
4309 regular object. */
4310
0a1b45a2 4311static bool
2c3fc389
NC
4312elf32_bfinfdpic_adjust_dynamic_symbol (struct bfd_link_info *info,
4313 struct elf_link_hash_entry *h)
48d502e1
BS
4314{
4315 bfd * dynobj;
4316
4317 dynobj = elf_hash_table (info)->dynobj;
4318
4319 /* Make sure we know what is going on here. */
4320 BFD_ASSERT (dynobj != NULL
60d67dc8 4321 && (h->is_weakalias
48d502e1
BS
4322 || (h->def_dynamic
4323 && h->ref_regular
4324 && !h->def_regular)));
4325
4326 /* If this is a weak symbol, and there is a real definition, the
4327 processor independent code will have arranged for us to see the
4328 real definition first, and we can just use the same value. */
60d67dc8 4329 if (h->is_weakalias)
48d502e1 4330 {
60d67dc8
AM
4331 struct elf_link_hash_entry *def = weakdef (h);
4332 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
4333 h->root.u.def.section = def->root.u.def.section;
4334 h->root.u.def.value = def->root.u.def.value;
48d502e1 4335 }
0f64bb02 4336
0a1b45a2 4337 return true;
0f64bb02
CM
4338}
4339
48d502e1
BS
4340/* Perform any actions needed for dynamic symbols. */
4341
0a1b45a2 4342static bool
48d502e1
BS
4343elf32_bfinfdpic_finish_dynamic_symbol
4344(bfd *output_bfd ATTRIBUTE_UNUSED,
4345 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4346 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
4347 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
0f64bb02 4348{
0a1b45a2 4349 return true;
48d502e1 4350}
0f64bb02 4351
48d502e1
BS
4352/* Decide whether to attempt to turn absptr or lsda encodings in
4353 shared libraries into pcrel within the given input section. */
0f64bb02 4354
0a1b45a2 4355static bool
48d502e1
BS
4356bfinfdpic_elf_use_relative_eh_frame
4357(bfd *input_bfd ATTRIBUTE_UNUSED,
4358 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4359 asection *eh_frame_section ATTRIBUTE_UNUSED)
4360{
4361 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
0a1b45a2 4362 return false;
48d502e1 4363}
0f64bb02 4364
48d502e1 4365/* Adjust the contents of an eh_frame_hdr section before they're output. */
0f64bb02 4366
48d502e1
BS
4367static bfd_byte
4368bfinfdpic_elf_encode_eh_address (bfd *abfd,
4369 struct bfd_link_info *info,
4370 asection *osec, bfd_vma offset,
4371 asection *loc_sec, bfd_vma loc_offset,
4372 bfd_vma *encoded)
4373{
4374 struct elf_link_hash_entry *h;
0f64bb02 4375
48d502e1
BS
4376 h = elf_hash_table (info)->hgot;
4377 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
4378
4379 if (! h || (_bfinfdpic_osec_to_segment (abfd, osec)
4380 == _bfinfdpic_osec_to_segment (abfd, loc_sec->output_section)))
4381 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
4382 loc_sec, loc_offset, encoded);
4383
4384 BFD_ASSERT (_bfinfdpic_osec_to_segment (abfd, osec)
4385 == (_bfinfdpic_osec_to_segment
4386 (abfd, h->root.u.def.section->output_section)));
4387
4388 *encoded = osec->vma + offset
4389 - (h->root.u.def.value
4390 + h->root.u.def.section->output_section->vma
4391 + h->root.u.def.section->output_offset);
4392
4393 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
0f64bb02
CM
4394}
4395
4396
48d502e1
BS
4397
4398/* Look through the relocs for a section during the first phase.
4399
4400 Besides handling virtual table relocs for gc, we have to deal with
4401 all sorts of PIC-related relocations. We describe below the
4402 general plan on how to handle such relocations, even though we only
4403 collect information at this point, storing them in hash tables for
4404 perusal of later passes.
4405
4406 32 relocations are propagated to the linker output when creating
4407 position-independent output. LO16 and HI16 relocations are not
4408 supposed to be encountered in this case.
4409
4410 LABEL16 should always be resolvable by the linker, since it's only
4411 used by branches.
4412
4413 LABEL24, on the other hand, is used by calls. If it turns out that
4414 the target of a call is a dynamic symbol, a PLT entry must be
4415 created for it, which triggers the creation of a private function
4416 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
4417
4418 GPREL relocations require the referenced symbol to be in the same
4419 segment as _gp, but this can only be checked later.
4420
4421 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
4422 exist. LABEL24 might as well, since it may require a PLT entry,
4423 that will require a got.
4424
4425 Non-FUNCDESC GOT relocations require a GOT entry to be created
4426 regardless of whether the symbol is dynamic. However, since a
4427 global symbol that turns out to not be exported may have the same
4428 address of a non-dynamic symbol, we don't assign GOT entries at
4429 this point, such that we can share them in this case. A relocation
4430 for the GOT entry always has to be created, be it to offset a
4431 private symbol by the section load address, be it to get the symbol
4432 resolved dynamically.
4433
4434 FUNCDESC GOT relocations require a GOT entry to be created, and
4435 handled as if a FUNCDESC relocation was applied to the GOT entry in
4436 an object file.
4437
4438 FUNCDESC relocations referencing a symbol that turns out to NOT be
4439 dynamic cause a private function descriptor to be created. The
4440 FUNCDESC relocation then decays to a 32 relocation that points at
4441 the private descriptor. If the symbol is dynamic, the FUNCDESC
4442 relocation is propagated to the linker output, such that the
4443 dynamic linker creates the canonical descriptor, pointing to the
4444 dynamically-resolved definition of the function.
4445
4446 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
4447 symbols that are assigned to the same segment as the GOT, but we
4448 can only check this later, after we know the complete set of
4449 symbols defined and/or exported.
4450
4451 FUNCDESC GOTOFF relocations require a function descriptor to be
4452 created and, unless lazy binding is disabled or the symbol is not
4453 dynamic, a lazy PLT entry. Since we can't tell at this point
4454 whether a symbol is going to be dynamic, we have to decide later
4455 whether to create a lazy PLT entry or bind the descriptor directly
4456 to the private function.
4457
4458 FUNCDESC_VALUE relocations are not supposed to be present in object
4459 files, but they may very well be simply propagated to the linker
4460 output, since they have no side effect.
4461
4462
4463 A function descriptor always requires a FUNCDESC_VALUE relocation.
4464 Whether it's in .plt.rel or not depends on whether lazy binding is
4465 enabled and on whether the referenced symbol is dynamic.
4466
4467 The existence of a lazy PLT requires the resolverStub lazy PLT
4468 entry to be present.
4469
4470
4471 As for assignment of GOT, PLT and lazy PLT entries, and private
4472 descriptors, we might do them all sequentially, but we can do
4473 better than that. For example, we can place GOT entries and
4474 private function descriptors referenced using 12-bit operands
4475 closer to the PIC register value, such that these relocations don't
4476 overflow. Those that are only referenced with LO16 relocations
4477 could come next, but we may as well place PLT-required function
4478 descriptors in the 12-bit range to make them shorter. Symbols
4479 referenced with LO16/HI16 may come next, but we may place
4480 additional function descriptors in the 16-bit range if we can
4481 reliably tell that we've already placed entries that are ever
4482 referenced with only LO16. PLT entries are therefore generated as
4483 small as possible, while not introducing relocation overflows in
4484 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
4485 generated before or after PLT entries, but not intermingled with
4486 them, such that we can have more lazy PLT entries in range for a
4487 branch to the resolverStub. The resolverStub should be emitted at
4488 the most distant location from the first lazy PLT entry such that
4489 it's still in range for a branch, or closer, if there isn't a need
4490 for so many lazy PLT entries. Additional lazy PLT entries may be
4491 emitted after the resolverStub, as long as branches are still in
4492 range. If the branch goes out of range, longer lazy PLT entries
4493 are emitted.
4494
4495 We could further optimize PLT and lazy PLT entries by giving them
4496 priority in assignment to closer-to-gr17 locations depending on the
4497 number of occurrences of references to them (assuming a function
4498 that's called more often is more important for performance, so its
4499 PLT entry should be faster), or taking hints from the compiler.
4500 Given infinite time and money... :-) */
0f64bb02 4501
0a1b45a2 4502static bool
48d502e1
BS
4503bfinfdpic_check_relocs (bfd *abfd, struct bfd_link_info *info,
4504 asection *sec, const Elf_Internal_Rela *relocs)
0f64bb02
CM
4505{
4506 Elf_Internal_Shdr *symtab_hdr;
5582a088 4507 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS
4508 const Elf_Internal_Rela *rel;
4509 const Elf_Internal_Rela *rel_end;
0f64bb02 4510 bfd *dynobj;
48d502e1 4511 struct bfinfdpic_relocs_info *picrel;
0f64bb02 4512
0e1862bb 4513 if (bfd_link_relocatable (info))
0a1b45a2 4514 return true;
0f64bb02
CM
4515
4516 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4517 sym_hashes = elf_sym_hashes (abfd);
0f64bb02 4518
48d502e1
BS
4519 dynobj = elf_hash_table (info)->dynobj;
4520 rel_end = relocs + sec->reloc_count;
4521 for (rel = relocs; rel < rel_end; rel++)
0f64bb02 4522 {
0f64bb02 4523 struct elf_link_hash_entry *h;
48d502e1
BS
4524 unsigned long r_symndx;
4525
4526 r_symndx = ELF32_R_SYM (rel->r_info);
4527 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 4528 h = NULL;
48d502e1 4529 else
d4e57b87
L
4530 {
4531 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4532 while (h->root.type == bfd_link_hash_indirect
4533 || h->root.type == bfd_link_hash_warning)
4534 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4535 }
0f64bb02
CM
4536
4537 switch (ELF32_R_TYPE (rel->r_info))
4538 {
48d502e1
BS
4539 case R_BFIN_GOT17M4:
4540 case R_BFIN_GOTHI:
4541 case R_BFIN_GOTLO:
4542 case R_BFIN_FUNCDESC_GOT17M4:
4543 case R_BFIN_FUNCDESC_GOTHI:
4544 case R_BFIN_FUNCDESC_GOTLO:
4545 case R_BFIN_GOTOFF17M4:
4546 case R_BFIN_GOTOFFHI:
4547 case R_BFIN_GOTOFFLO:
4548 case R_BFIN_FUNCDESC_GOTOFF17M4:
4549 case R_BFIN_FUNCDESC_GOTOFFHI:
4550 case R_BFIN_FUNCDESC_GOTOFFLO:
4551 case R_BFIN_FUNCDESC:
4552 case R_BFIN_FUNCDESC_VALUE:
4553 if (! IS_FDPIC (abfd))
4554 goto bad_reloc;
4555 /* Fall through. */
cb88ce9f
BS
4556 case R_BFIN_PCREL24:
4557 case R_BFIN_PCREL24_JUMP_L:
4558 case R_BFIN_BYTE4_DATA:
48d502e1 4559 if (IS_FDPIC (abfd) && ! dynobj)
0f64bb02 4560 {
48d502e1
BS
4561 elf_hash_table (info)->dynobj = dynobj = abfd;
4562 if (! _bfin_create_got_section (abfd, info))
0a1b45a2 4563 return false;
0f64bb02 4564 }
48d502e1 4565 if (! IS_FDPIC (abfd))
0f64bb02 4566 {
48d502e1
BS
4567 picrel = NULL;
4568 break;
4569 }
4570 if (h != NULL)
4571 {
4572 if (h->dynindx == -1)
4573 switch (ELF_ST_VISIBILITY (h->other))
4574 {
4575 case STV_INTERNAL:
4576 case STV_HIDDEN:
4577 break;
4578 default:
4579 bfd_elf_link_record_dynamic_symbol (info, h);
4580 break;
4581 }
4582 picrel
4583 = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4584 abfd, h,
4585 rel->r_addend, INSERT);
0f64bb02 4586 }
48d502e1
BS
4587 else
4588 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
4589 (info), abfd, r_symndx,
4590 rel->r_addend, INSERT);
4591 if (! picrel)
0a1b45a2 4592 return false;
0f64bb02 4593 break;
48d502e1 4594
0f64bb02 4595 default:
48d502e1 4596 picrel = NULL;
0f64bb02
CM
4597 break;
4598 }
48d502e1
BS
4599
4600 switch (ELF32_R_TYPE (rel->r_info))
07d6d2b8 4601 {
cb88ce9f
BS
4602 case R_BFIN_PCREL24:
4603 case R_BFIN_PCREL24_JUMP_L:
48d502e1 4604 if (IS_FDPIC (abfd))
2774f1a6 4605 picrel->call++;
48d502e1
BS
4606 break;
4607
4608 case R_BFIN_FUNCDESC_VALUE:
4609 picrel->relocsfdv++;
fd361982 4610 if (bfd_section_flags (sec) & SEC_ALLOC)
48d502e1
BS
4611 picrel->relocs32--;
4612 /* Fall through. */
4613
cb88ce9f 4614 case R_BFIN_BYTE4_DATA:
48d502e1
BS
4615 if (! IS_FDPIC (abfd))
4616 break;
4617
2774f1a6 4618 picrel->sym++;
fd361982 4619 if (bfd_section_flags (sec) & SEC_ALLOC)
48d502e1
BS
4620 picrel->relocs32++;
4621 break;
4622
4623 case R_BFIN_GOT17M4:
2774f1a6 4624 picrel->got17m4++;
48d502e1
BS
4625 break;
4626
4627 case R_BFIN_GOTHI:
4628 case R_BFIN_GOTLO:
2774f1a6 4629 picrel->gothilo++;
48d502e1
BS
4630 break;
4631
4632 case R_BFIN_FUNCDESC_GOT17M4:
2774f1a6 4633 picrel->fdgot17m4++;
48d502e1
BS
4634 break;
4635
4636 case R_BFIN_FUNCDESC_GOTHI:
4637 case R_BFIN_FUNCDESC_GOTLO:
2774f1a6 4638 picrel->fdgothilo++;
48d502e1
BS
4639 break;
4640
4641 case R_BFIN_GOTOFF17M4:
4642 case R_BFIN_GOTOFFHI:
4643 case R_BFIN_GOTOFFLO:
2774f1a6 4644 picrel->gotoff++;
48d502e1
BS
4645 break;
4646
4647 case R_BFIN_FUNCDESC_GOTOFF17M4:
2774f1a6 4648 picrel->fdgoff17m4++;
48d502e1
BS
4649 break;
4650
4651 case R_BFIN_FUNCDESC_GOTOFFHI:
4652 case R_BFIN_FUNCDESC_GOTOFFLO:
2774f1a6 4653 picrel->fdgoffhilo++;
48d502e1
BS
4654 break;
4655
4656 case R_BFIN_FUNCDESC:
2774f1a6 4657 picrel->fd++;
48d502e1
BS
4658 picrel->relocsfd++;
4659 break;
4660
07d6d2b8
AM
4661 /* This relocation describes the C++ object vtable hierarchy.
4662 Reconstruct it for later use during GC. */
4663 case R_BFIN_GNU_VTINHERIT:
4664 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
0a1b45a2 4665 return false;
07d6d2b8
AM
4666 break;
4667
4668 /* This relocation describes which C++ vtable entries are actually
4669 used. Record for later use during GC. */
4670 case R_BFIN_GNU_VTENTRY:
4671 BFD_ASSERT (h != NULL);
4672 if (h != NULL
4673 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
0a1b45a2 4674 return false;
07d6d2b8 4675 break;
48d502e1 4676
cb88ce9f
BS
4677 case R_BFIN_HUIMM16:
4678 case R_BFIN_LUIMM16:
4679 case R_BFIN_PCREL12_JUMP_S:
4680 case R_BFIN_PCREL10:
48d502e1
BS
4681 break;
4682
4683 default:
4684 bad_reloc:
4eca0228 4685 _bfd_error_handler
695344c0 4686 /* xgettext:c-format */
0aa13fee 4687 (_("%pB: unsupported relocation type %#x"),
d42c267e 4688 abfd, (int) ELF32_R_TYPE (rel->r_info));
0a1b45a2 4689 return false;
07d6d2b8 4690 }
0f64bb02
CM
4691 }
4692
0a1b45a2 4693 return true;
0f64bb02
CM
4694}
4695
48d502e1
BS
4696/* Set the right machine number for a Blackfin ELF file. */
4697
0a1b45a2 4698static bool
48d502e1
BS
4699elf32_bfin_object_p (bfd *abfd)
4700{
4701 bfd_default_set_arch_mach (abfd, bfd_arch_bfin, 0);
4702 return (((elf_elfheader (abfd)->e_flags & EF_BFIN_FDPIC) != 0)
4703 == (IS_FDPIC (abfd)));
4704}
0f64bb02 4705
0a1b45a2 4706static bool
48d502e1 4707elf32_bfin_set_private_flags (bfd * abfd, flagword flags)
0f64bb02 4708{
48d502e1 4709 elf_elfheader (abfd)->e_flags = flags;
0a1b45a2
AM
4710 elf_flags_init (abfd) = true;
4711 return true;
48d502e1 4712}
0f64bb02 4713
0f64bb02 4714/* Display the flags field. */
0a1b45a2 4715static bool
2c3fc389 4716elf32_bfin_print_private_bfd_data (bfd * abfd, void * ptr)
0f64bb02
CM
4717{
4718 FILE *file = (FILE *) ptr;
48d502e1 4719 flagword flags;
0f64bb02
CM
4720
4721 BFD_ASSERT (abfd != NULL && ptr != NULL);
4722
4723 /* Print normal ELF private data. */
4724 _bfd_elf_print_private_bfd_data (abfd, ptr);
4725
48d502e1 4726 flags = elf_elfheader (abfd)->e_flags;
0f64bb02
CM
4727
4728 /* xgettext:c-format */
4729 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
4730
48d502e1
BS
4731 if (flags & EF_BFIN_PIC)
4732 fprintf (file, " -fpic");
4733
4734 if (flags & EF_BFIN_FDPIC)
4735 fprintf (file, " -mfdpic");
4736
0f64bb02
CM
4737 fputc ('\n', file);
4738
0a1b45a2 4739 return true;
0f64bb02
CM
4740}
4741
48d502e1
BS
4742/* Merge backend specific data from an object file to the output
4743 object file when linking. */
4744
0a1b45a2 4745static bool
50e03d47 4746elf32_bfin_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
48d502e1 4747{
50e03d47 4748 bfd *obfd = info->output_bfd;
7a84e3da 4749 flagword old_flags, new_flags;
0a1b45a2 4750 bool error = false;
48d502e1 4751
6b728d32
AM
4752 /* FIXME: What should be checked when linking shared libraries? */
4753 if ((ibfd->flags & DYNAMIC) != 0)
0a1b45a2 4754 return true;
6b728d32 4755
48d502e1
BS
4756 new_flags = elf_elfheader (ibfd)->e_flags;
4757 old_flags = elf_elfheader (obfd)->e_flags;
4758
4759 if (new_flags & EF_BFIN_FDPIC)
4760 new_flags &= ~EF_BFIN_PIC;
4761
c7e2358a
AM
4762#ifndef DEBUG
4763 if (0)
4764#endif
4eca0228 4765 _bfd_error_handler
871b3ab2 4766 ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %pB",
dae82561 4767 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no", ibfd);
48d502e1
BS
4768
4769 if (!elf_flags_init (obfd)) /* First call, no flags set. */
4770 {
0a1b45a2 4771 elf_flags_init (obfd) = true;
7a84e3da 4772 elf_elfheader (obfd)->e_flags = new_flags;
48d502e1
BS
4773 }
4774
7a84e3da 4775 if (((new_flags & EF_BFIN_FDPIC) == 0) != (! IS_FDPIC (obfd)))
48d502e1 4776 {
0a1b45a2 4777 error = true;
48d502e1 4778 if (IS_FDPIC (obfd))
4eca0228 4779 _bfd_error_handler
871b3ab2 4780 (_("%pB: cannot link non-fdpic object file into fdpic executable"),
dae82561 4781 ibfd);
48d502e1 4782 else
4eca0228 4783 _bfd_error_handler
871b3ab2 4784 (_("%pB: cannot link fdpic object file into non-fdpic executable"),
dae82561 4785 ibfd);
48d502e1
BS
4786 }
4787
4788 if (error)
4789 bfd_set_error (bfd_error_bad_value);
4790
4791 return !error;
4792}
4793\f
0f64bb02
CM
4794/* bfin ELF linker hash entry. */
4795
4796struct bfin_link_hash_entry
4797{
4798 struct elf_link_hash_entry root;
4799
4800 /* Number of PC relative relocs copied for this symbol. */
4801 struct bfin_pcrel_relocs_copied *pcrel_relocs_copied;
4802};
4803
0f64bb02
CM
4804#define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent))
4805
4806static struct bfd_hash_entry *
4807bfin_link_hash_newfunc (struct bfd_hash_entry *entry,
48d502e1 4808 struct bfd_hash_table *table, const char *string)
0f64bb02
CM
4809{
4810 struct bfd_hash_entry *ret = entry;
4811
4812 /* Allocate the structure if it has not already been allocated by a
4813 subclass. */
4814 if (ret == NULL)
4815 ret = bfd_hash_allocate (table, sizeof (struct bfin_link_hash_entry));
4816 if (ret == NULL)
4817 return ret;
4818
4819 /* Call the allocation method of the superclass. */
4820 ret = _bfd_elf_link_hash_newfunc (ret, table, string);
4821 if (ret != NULL)
4822 bfin_hash_entry (ret)->pcrel_relocs_copied = NULL;
4823
4824 return ret;
4825}
4826
4827/* Create an bfin ELF linker hash table. */
4828
4829static struct bfd_link_hash_table *
4830bfin_link_hash_table_create (bfd * abfd)
4831{
f1dfbfdb
L
4832 struct elf_link_hash_table *ret;
4833 size_t amt = sizeof (struct elf_link_hash_table);
0f64bb02 4834
22cdc249 4835 ret = bfd_zmalloc (amt);
48d502e1 4836 if (ret == NULL)
0f64bb02
CM
4837 return NULL;
4838
f1dfbfdb 4839 if (!_bfd_elf_link_hash_table_init (ret, abfd, bfin_link_hash_newfunc,
4dfe6ac6
NC
4840 sizeof (struct elf_link_hash_entry),
4841 BFIN_ELF_DATA))
0f64bb02
CM
4842 {
4843 free (ret);
4844 return NULL;
4845 }
4846
f1dfbfdb 4847 return &ret->root;
0f64bb02
CM
4848}
4849
4850/* The size in bytes of an entry in the procedure linkage table. */
4851
4852/* Finish up the dynamic sections. */
4853
0a1b45a2 4854static bool
0f64bb02 4855bfin_finish_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 4856 struct bfd_link_info *info)
0f64bb02
CM
4857{
4858 bfd *dynobj;
4859 asection *sdyn;
4860
4861 dynobj = elf_hash_table (info)->dynobj;
4862
3d4d4302 4863 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
0f64bb02
CM
4864
4865 if (elf_hash_table (info)->dynamic_sections_created)
4866 {
4867 Elf32_External_Dyn *dyncon, *dynconend;
4868
4869 BFD_ASSERT (sdyn != NULL);
4870
4871 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4872 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4873 for (; dyncon < dynconend; dyncon++)
4874 {
4875 Elf_Internal_Dyn dyn;
4876
4877 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4878
4879 }
4880
4881 }
0a1b45a2 4882 return true;
0f64bb02
CM
4883}
4884
4885/* Finish up dynamic symbol handling. We set the contents of various
4886 dynamic sections here. */
4887
0a1b45a2 4888static bool
0f64bb02 4889bfin_finish_dynamic_symbol (bfd * output_bfd,
2c3fc389
NC
4890 struct bfd_link_info *info,
4891 struct elf_link_hash_entry *h,
4892 Elf_Internal_Sym * sym)
0f64bb02 4893{
0f64bb02
CM
4894 if (h->got.offset != (bfd_vma) - 1)
4895 {
4896 asection *sgot;
4897 asection *srela;
4898 Elf_Internal_Rela rela;
4899 bfd_byte *loc;
4900
4901 /* This symbol has an entry in the global offset table.
07d6d2b8 4902 Set it up. */
0f64bb02 4903
ce558b89
AM
4904 sgot = elf_hash_table (info)->sgot;
4905 srela = elf_hash_table (info)->srelgot;
0f64bb02
CM
4906 BFD_ASSERT (sgot != NULL && srela != NULL);
4907
4908 rela.r_offset = (sgot->output_section->vma
4909 + sgot->output_offset
4910 + (h->got.offset & ~(bfd_vma) 1));
4911
4912 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM
4913 locally, we just want to emit a RELATIVE reloc. Likewise if
4914 the symbol was forced to be local because of a version file.
4915 The entry in the global offset table will already have been
4916 initialized in the relocate_section function. */
0e1862bb 4917 if (bfd_link_pic (info)
0f64bb02
CM
4918 && (info->symbolic
4919 || h->dynindx == -1 || h->forced_local) && h->def_regular)
4920 {
4eca0228
AM
4921 _bfd_error_handler (_("*** check this relocation %s"),
4922 __FUNCTION__);
cb88ce9f 4923 rela.r_info = ELF32_R_INFO (0, R_BFIN_PCREL24);
0f64bb02
CM
4924 rela.r_addend = bfd_get_signed_32 (output_bfd,
4925 (sgot->contents
4926 +
4927 (h->got.
4928 offset & ~(bfd_vma) 1)));
4929 }
4930 else
4931 {
4932 bfd_put_32 (output_bfd, (bfd_vma) 0,
4933 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
cb88ce9f 4934 rela.r_info = ELF32_R_INFO (h->dynindx, R_BFIN_GOT);
0f64bb02
CM
4935 rela.r_addend = 0;
4936 }
4937
4938 loc = srela->contents;
4939 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
4940 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4941 }
4942
4943 if (h->needs_copy)
4944 {
4945 BFD_ASSERT (0);
4946 }
4947 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
5592d7ec 4948 if (strcmp (h->root.root.string, "__DYNAMIC") == 0
22edb2f1 4949 || h == elf_hash_table (info)->hgot)
0f64bb02
CM
4950 sym->st_shndx = SHN_ABS;
4951
0a1b45a2 4952 return true;
0f64bb02
CM
4953}
4954
4955/* Adjust a symbol defined by a dynamic object and referenced by a
4956 regular object. The current definition is in some section of the
4957 dynamic object, but we're not including those sections. We have to
4958 change the definition to something the rest of the link can
4959 understand. */
4960
0a1b45a2 4961static bool
0f64bb02 4962bfin_adjust_dynamic_symbol (struct bfd_link_info *info,
2c3fc389 4963 struct elf_link_hash_entry *h)
0f64bb02
CM
4964{
4965 bfd *dynobj;
4966 asection *s;
4967 unsigned int power_of_two;
4968
4969 dynobj = elf_hash_table (info)->dynobj;
4970
4971 /* Make sure we know what is going on here. */
4972 BFD_ASSERT (dynobj != NULL
4973 && (h->needs_plt
60d67dc8 4974 || h->is_weakalias
0f64bb02
CM
4975 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
4976
4977 /* If this is a function, put it in the procedure linkage table. We
4978 will fill in the contents of the procedure linkage table later,
4979 when we know the address of the .got section. */
4980 if (h->type == STT_FUNC || h->needs_plt)
4981 {
4982 BFD_ASSERT(0);
4983 }
4984
4985 /* If this is a weak symbol, and there is a real definition, the
4986 processor independent code will have arranged for us to see the
4987 real definition first, and we can just use the same value. */
60d67dc8 4988 if (h->is_weakalias)
0f64bb02 4989 {
60d67dc8
AM
4990 struct elf_link_hash_entry *def = weakdef (h);
4991 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
4992 h->root.u.def.section = def->root.u.def.section;
4993 h->root.u.def.value = def->root.u.def.value;
0a1b45a2 4994 return true;
0f64bb02
CM
4995 }
4996
4997 /* This is a reference to a symbol defined by a dynamic object which
4998 is not a function. */
4999
5000 /* If we are creating a shared library, we must presume that the
5001 only references to the symbol are via the global offset table.
5002 For such cases we need not do anything here; the relocations will
5003 be handled correctly by relocate_section. */
0e1862bb 5004 if (bfd_link_pic (info))
0a1b45a2 5005 return true;
0f64bb02
CM
5006
5007 /* We must allocate the symbol in our .dynbss section, which will
5008 become part of the .bss section of the executable. There will be
5009 an entry for this symbol in the .dynsym section. The dynamic
5010 object will contain position independent code, so all references
5011 from the dynamic object to this symbol will go through the global
5012 offset table. The dynamic linker will use the .dynsym entry to
5013 determine the address it must put in the global offset table, so
5014 both the dynamic object and the regular object will refer to the
5015 same memory location for the variable. */
5016
3d4d4302 5017 s = bfd_get_linker_section (dynobj, ".dynbss");
0f64bb02
CM
5018 BFD_ASSERT (s != NULL);
5019
1b857aee
NC
5020#if 0 /* Bfin does not currently have a COPY reloc. */
5021 /* We must generate a R_BFIN_COPY reloc to tell the dynamic linker to
0f64bb02
CM
5022 copy the initial value out of the dynamic object and into the
5023 runtime process image. We need to remember the offset into the
5024 .rela.bss section we are going to use. */
5025 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5026 {
5027 asection *srel;
5028
3d4d4302 5029 srel = bfd_get_linker_section (dynobj, ".rela.bss");
0f64bb02
CM
5030 BFD_ASSERT (srel != NULL);
5031 srel->size += sizeof (Elf32_External_Rela);
5032 h->needs_copy = 1;
5033 }
1b857aee
NC
5034#else
5035 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5036 {
4eca0228 5037 _bfd_error_handler (_("the bfin target does not currently support the generation of copy relocations"));
0a1b45a2 5038 return false;
1b857aee
NC
5039 }
5040#endif
0f64bb02
CM
5041 /* We need to figure out the alignment required for this symbol. I
5042 have no idea how ELF linkers handle this. */
5043 power_of_two = bfd_log2 (h->size);
5044 if (power_of_two > 3)
5045 power_of_two = 3;
5046
5047 /* Apply the required alignment. */
5048 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
fd361982 5049 if (power_of_two > bfd_section_alignment (s))
0f64bb02 5050 {
fd361982 5051 if (!bfd_set_section_alignment (s, power_of_two))
0a1b45a2 5052 return false;
0f64bb02
CM
5053 }
5054
5055 /* Define the symbol as being at this point in the section. */
5056 h->root.u.def.section = s;
5057 h->root.u.def.value = s->size;
5058
5059 /* Increment the section size to make room for the symbol. */
5060 s->size += h->size;
5061
0a1b45a2 5062 return true;
0f64bb02
CM
5063}
5064
5065/* The bfin linker needs to keep track of the number of relocs that it
5066 decides to copy in check_relocs for each symbol. This is so that it
5067 can discard PC relative relocs if it doesn't need them when linking
5068 with -Bsymbolic. We store the information in a field extending the
5069 regular ELF linker hash table. */
5070
5071/* This structure keeps track of the number of PC relative relocs we have
5072 copied for a given symbol. */
5073
5074struct bfin_pcrel_relocs_copied
5075{
5076 /* Next section. */
5077 struct bfin_pcrel_relocs_copied *next;
5078 /* A section in dynobj. */
5079 asection *section;
5080 /* Number of relocs copied in this section. */
5081 bfd_size_type count;
5082};
5083
5084/* This function is called via elf_link_hash_traverse if we are
5085 creating a shared object. In the -Bsymbolic case it discards the
5086 space allocated to copy PC relative relocs against symbols which
5087 are defined in regular objects. For the normal shared case, it
5088 discards space for pc-relative relocs that have become local due to
5089 symbol visibility changes. We allocated space for them in the
5090 check_relocs routine, but we won't fill them in in the
5091 relocate_section routine.
5092
5093 We also check whether any of the remaining relocations apply
5094 against a readonly section, and set the DF_TEXTREL flag in this
5095 case. */
5096
0a1b45a2 5097static bool
2c3fc389 5098bfin_discard_copies (struct elf_link_hash_entry *h, void * inf)
0f64bb02
CM
5099{
5100 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5101 struct bfin_pcrel_relocs_copied *s;
5102
0f64bb02
CM
5103 if (!h->def_regular || (!info->symbolic && !h->forced_local))
5104 {
5105 if ((info->flags & DF_TEXTREL) == 0)
5106 {
5107 /* Look for relocations against read-only sections. */
5108 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5109 s != NULL; s = s->next)
5110 if ((s->section->flags & SEC_READONLY) != 0)
5111 {
5112 info->flags |= DF_TEXTREL;
5113 break;
5114 }
5115 }
5116
0a1b45a2 5117 return true;
0f64bb02
CM
5118 }
5119
5120 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5121 s != NULL; s = s->next)
5122 s->section->size -= s->count * sizeof (Elf32_External_Rela);
5123
0a1b45a2 5124 return true;
0f64bb02
CM
5125}
5126
0a1b45a2 5127static bool
0f64bb02 5128bfin_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 5129 struct bfd_link_info *info)
0f64bb02
CM
5130{
5131 bfd *dynobj;
5132 asection *s;
0a1b45a2 5133 bool relocs;
0f64bb02
CM
5134
5135 dynobj = elf_hash_table (info)->dynobj;
5136 BFD_ASSERT (dynobj != NULL);
5137
5138 if (elf_hash_table (info)->dynamic_sections_created)
5139 {
5140 /* Set the contents of the .interp section to the interpreter. */
9d45a7de 5141 if (bfd_link_executable (info) && !info->nointerp)
0f64bb02 5142 {
3d4d4302 5143 s = bfd_get_linker_section (dynobj, ".interp");
0f64bb02
CM
5144 BFD_ASSERT (s != NULL);
5145 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5146 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5147 }
5148 }
5149 else
5150 {
5151 /* We may have created entries in the .rela.got section.
07d6d2b8
AM
5152 However, if we are not creating the dynamic sections, we will
5153 not actually use these entries. Reset the size of .rela.got,
5154 which will cause it to get stripped from the output file
5155 below. */
ce558b89 5156 s = elf_hash_table (info)->srelgot;
0f64bb02
CM
5157 if (s != NULL)
5158 s->size = 0;
5159 }
5160
5161 /* If this is a -Bsymbolic shared link, then we need to discard all
5162 PC relative relocs against symbols defined in a regular object.
5163 For the normal shared case we discard the PC relative relocs
5164 against symbols that have become local due to visibility changes.
5165 We allocated space for them in the check_relocs routine, but we
5166 will not fill them in in the relocate_section routine. */
0e1862bb 5167 if (bfd_link_pic (info))
0f64bb02 5168 elf_link_hash_traverse (elf_hash_table (info),
2c3fc389 5169 bfin_discard_copies, info);
0f64bb02
CM
5170
5171 /* The check_relocs and adjust_dynamic_symbol entry points have
5172 determined the sizes of the various dynamic sections. Allocate
5173 memory for them. */
0a1b45a2 5174 relocs = false;
0f64bb02
CM
5175 for (s = dynobj->sections; s != NULL; s = s->next)
5176 {
5177 const char *name;
0a1b45a2 5178 bool strip;
0f64bb02
CM
5179
5180 if ((s->flags & SEC_LINKER_CREATED) == 0)
5181 continue;
5182
5183 /* It's OK to base decisions on the section name, because none
07d6d2b8 5184 of the dynobj section names depend upon the input files. */
fd361982 5185 name = bfd_section_name (s);
0f64bb02 5186
0a1b45a2 5187 strip = false;
0f64bb02 5188
08dedd66 5189 if (startswith (name, ".rela"))
0f64bb02
CM
5190 {
5191 if (s->size == 0)
5192 {
5193 /* If we don't need this section, strip it from the
07d6d2b8
AM
5194 output file. This is mostly to handle .rela.bss and
5195 .rela.plt. We must create both sections in
5196 create_dynamic_sections, because they must be created
5197 before the linker maps input sections to output
5198 sections. The linker does that before
5199 adjust_dynamic_symbol is called, and it is that
5200 function which decides whether anything needs to go
5201 into these sections. */
0a1b45a2 5202 strip = true;
0f64bb02
CM
5203 }
5204 else
5205 {
0a1b45a2 5206 relocs = true;
0f64bb02
CM
5207
5208 /* We use the reloc_count field as a counter if we need
07d6d2b8 5209 to copy relocs into the output file. */
0f64bb02
CM
5210 s->reloc_count = 0;
5211 }
5212 }
08dedd66 5213 else if (! startswith (name, ".got"))
0f64bb02
CM
5214 {
5215 /* It's not one of our sections, so don't allocate space. */
5216 continue;
5217 }
5218
5219 if (strip)
5220 {
5221 s->flags |= SEC_EXCLUDE;
5222 continue;
5223 }
5224
5225 /* Allocate memory for the section contents. */
5226 /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
07d6d2b8
AM
5227 Unused entries should be reclaimed before the section's contents
5228 are written out, but at the moment this does not happen. Thus in
5229 order to prevent writing out garbage, we initialise the section's
5230 contents to zero. */
0f64bb02
CM
5231 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
5232 if (s->contents == NULL && s->size != 0)
0a1b45a2 5233 return false;
0f64bb02
CM
5234 }
5235
5236 if (elf_hash_table (info)->dynamic_sections_created)
5237 {
5238 /* Add some entries to the .dynamic section. We fill in the
07d6d2b8
AM
5239 values later, in bfin_finish_dynamic_sections, but we
5240 must add the entries now so that we get the correct size for
5241 the .dynamic section. The DT_DEBUG entry is filled in by the
5242 dynamic linker and used by the debugger. */
0f64bb02
CM
5243#define add_dynamic_entry(TAG, VAL) \
5244 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
5245
0e1862bb 5246 if (!bfd_link_pic (info))
0f64bb02
CM
5247 {
5248 if (!add_dynamic_entry (DT_DEBUG, 0))
0a1b45a2 5249 return false;
0f64bb02
CM
5250 }
5251
5252
5253 if (relocs)
5254 {
5255 if (!add_dynamic_entry (DT_RELA, 0)
5256 || !add_dynamic_entry (DT_RELASZ, 0)
5257 || !add_dynamic_entry (DT_RELAENT,
5258 sizeof (Elf32_External_Rela)))
0a1b45a2 5259 return false;
0f64bb02
CM
5260 }
5261
5262 if ((info->flags & DF_TEXTREL) != 0)
5263 {
5264 if (!add_dynamic_entry (DT_TEXTREL, 0))
0a1b45a2 5265 return false;
0f64bb02
CM
5266 }
5267 }
5268#undef add_dynamic_entry
5269
0a1b45a2 5270 return true;
0f64bb02 5271}
48d502e1 5272\f
0f64bb02
CM
5273/* Given a .data section and a .emreloc in-memory section, store
5274 relocation information into the .emreloc section which can be
5275 used at runtime to relocate the section. This is called by the
5276 linker when the --embedded-relocs switch is used. This is called
5277 after the add_symbols entry point has been called for all the
5278 objects, and before the final_link entry point is called. */
5279
0a1b45a2 5280bool
2c3fc389
NC
5281bfd_bfin_elf32_create_embedded_relocs (bfd *abfd,
5282 struct bfd_link_info *info,
5283 asection *datasec,
5284 asection *relsec,
5285 char **errmsg)
0f64bb02
CM
5286{
5287 Elf_Internal_Shdr *symtab_hdr;
5288 Elf_Internal_Sym *isymbuf = NULL;
5289 Elf_Internal_Rela *internal_relocs = NULL;
5290 Elf_Internal_Rela *irel, *irelend;
5291 bfd_byte *p;
5292 bfd_size_type amt;
5293
0e1862bb 5294 BFD_ASSERT (! bfd_link_relocatable (info));
0f64bb02
CM
5295
5296 *errmsg = NULL;
5297
5298 if (datasec->reloc_count == 0)
0a1b45a2 5299 return true;
0f64bb02
CM
5300
5301 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5302
5303 /* Get a copy of the native relocations. */
5304 internal_relocs = (_bfd_elf_link_read_relocs
2c3fc389 5305 (abfd, datasec, NULL, (Elf_Internal_Rela *) NULL,
0f64bb02
CM
5306 info->keep_memory));
5307 if (internal_relocs == NULL)
5308 goto error_return;
5309
5310 amt = (bfd_size_type) datasec->reloc_count * 12;
5311 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
5312 if (relsec->contents == NULL)
5313 goto error_return;
5314
5315 p = relsec->contents;
5316
5317 irelend = internal_relocs + datasec->reloc_count;
5318 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
5319 {
5320 asection *targetsec;
5321
5322 /* We are going to write a four byte longword into the runtime
5323 reloc section. The longword will be the address in the data
5324 section which must be relocated. It is followed by the name
5325 of the target section NUL-padded or truncated to 8
5326 characters. */
5327
5328 /* We can only relocate absolute longword relocs at run time. */
cb88ce9f 5329 if (ELF32_R_TYPE (irel->r_info) != (int) R_BFIN_BYTE4_DATA)
0f64bb02 5330 {
0aa13fee 5331 *errmsg = _("unsupported relocation type");
0f64bb02
CM
5332 bfd_set_error (bfd_error_bad_value);
5333 goto error_return;
5334 }
5335
5336 /* Get the target section referred to by the reloc. */
5337 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5338 {
5339 /* A local symbol. */
5340 Elf_Internal_Sym *isym;
5341
5342 /* Read this BFD's local symbols if we haven't done so already. */
5343 if (isymbuf == NULL)
5344 {
5345 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5346 if (isymbuf == NULL)
5347 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5348 symtab_hdr->sh_info, 0,
5349 NULL, NULL, NULL);
5350 if (isymbuf == NULL)
5351 goto error_return;
5352 }
5353
5354 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5355 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
5356 }
5357 else
5358 {
5359 unsigned long indx;
5360 struct elf_link_hash_entry *h;
5361
5362 /* An external symbol. */
5363 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5364 h = elf_sym_hashes (abfd)[indx];
5365 BFD_ASSERT (h != NULL);
5366 if (h->root.type == bfd_link_hash_defined
5367 || h->root.type == bfd_link_hash_defweak)
5368 targetsec = h->root.u.def.section;
5369 else
5370 targetsec = NULL;
5371 }
5372
5373 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
5374 memset (p + 4, 0, 8);
5375 if (targetsec != NULL)
9ba4c445 5376 strncpy ((char *) p + 4, targetsec->output_section->name, 8);
0f64bb02
CM
5377 }
5378
c9594989 5379 if (symtab_hdr->contents != (unsigned char *) isymbuf)
0f64bb02 5380 free (isymbuf);
c9594989 5381 if (elf_section_data (datasec)->relocs != internal_relocs)
0f64bb02 5382 free (internal_relocs);
0a1b45a2 5383 return true;
0f64bb02 5384
dc1e8a47 5385 error_return:
c9594989 5386 if (symtab_hdr->contents != (unsigned char *) isymbuf)
0f64bb02 5387 free (isymbuf);
c9594989 5388 if (elf_section_data (datasec)->relocs != internal_relocs)
0f64bb02 5389 free (internal_relocs);
0a1b45a2 5390 return false;
0f64bb02 5391}
b0a0b978
JZ
5392
5393struct bfd_elf_special_section const elf32_bfin_special_sections[] =
5394{
5395 { ".l1.text", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
5396 { ".l1.data", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
07d6d2b8 5397 { NULL, 0, 0, 0, 0 }
b0a0b978
JZ
5398};
5399
48d502e1 5400\f
6d00b590 5401#define TARGET_LITTLE_SYM bfin_elf32_vec
0f64bb02
CM
5402#define TARGET_LITTLE_NAME "elf32-bfin"
5403#define ELF_ARCH bfd_arch_bfin
ae95ffa6 5404#define ELF_TARGET_ID BFIN_ELF_DATA
3b55e94a 5405#define ELF_MACHINE_CODE EM_BLACKFIN
0f64bb02
CM
5406#define ELF_MAXPAGESIZE 0x1000
5407#define elf_symbol_leading_char '_'
5408
5409#define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup
157090f7
AM
5410#define bfd_elf32_bfd_reloc_name_lookup \
5411 bfin_bfd_reloc_name_lookup
0f64bb02 5412#define elf_info_to_howto bfin_info_to_howto
f3185997 5413#define elf_info_to_howto_rel NULL
48d502e1 5414#define elf_backend_object_p elf32_bfin_object_p
0f64bb02
CM
5415
5416#define bfd_elf32_bfd_is_local_label_name \
07d6d2b8 5417 bfin_is_local_label_name
0f64bb02
CM
5418
5419#define elf_backend_create_dynamic_sections \
07d6d2b8 5420 _bfd_elf_create_dynamic_sections
0f64bb02 5421#define bfd_elf32_bfd_link_hash_table_create \
07d6d2b8
AM
5422 bfin_link_hash_table_create
5423#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
0f64bb02 5424
07d6d2b8 5425#define elf_backend_check_relocs bfin_check_relocs
0f64bb02 5426#define elf_backend_adjust_dynamic_symbol \
07d6d2b8 5427 bfin_adjust_dynamic_symbol
0f64bb02 5428#define elf_backend_size_dynamic_sections \
07d6d2b8
AM
5429 bfin_size_dynamic_sections
5430#define elf_backend_relocate_section bfin_relocate_section
0f64bb02 5431#define elf_backend_finish_dynamic_symbol \
07d6d2b8 5432 bfin_finish_dynamic_symbol
0f64bb02 5433#define elf_backend_finish_dynamic_sections \
07d6d2b8
AM
5434 bfin_finish_dynamic_sections
5435#define elf_backend_gc_mark_hook bfin_gc_mark_hook
0f64bb02 5436#define bfd_elf32_bfd_merge_private_bfd_data \
07d6d2b8 5437 elf32_bfin_merge_private_bfd_data
0f64bb02 5438#define bfd_elf32_bfd_set_private_flags \
07d6d2b8 5439 elf32_bfin_set_private_flags
0f64bb02 5440#define bfd_elf32_bfd_print_private_bfd_data \
07d6d2b8 5441 elf32_bfin_print_private_bfd_data
781303ce 5442#define elf_backend_final_write_processing \
07d6d2b8
AM
5443 elf32_bfin_final_write_processing
5444#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
04c3a755 5445#define elf_backend_stack_align 8
0f64bb02 5446#define elf_backend_can_gc_sections 1
b0a0b978 5447#define elf_backend_special_sections elf32_bfin_special_sections
0f64bb02
CM
5448#define elf_backend_can_refcount 1
5449#define elf_backend_want_got_plt 0
5450#define elf_backend_plt_readonly 1
5451#define elf_backend_want_plt_sym 0
07d6d2b8
AM
5452#define elf_backend_got_header_size 12
5453#define elf_backend_rela_normal 1
0f64bb02 5454
48d502e1
BS
5455#include "elf32-target.h"
5456
5457#undef TARGET_LITTLE_SYM
07d6d2b8 5458#define TARGET_LITTLE_SYM bfin_elf32_fdpic_vec
48d502e1
BS
5459#undef TARGET_LITTLE_NAME
5460#define TARGET_LITTLE_NAME "elf32-bfinfdpic"
5461#undef elf32_bed
07d6d2b8 5462#define elf32_bed elf32_bfinfdpic_bed
48d502e1 5463
48d502e1 5464#undef elf_backend_got_header_size
07d6d2b8 5465#define elf_backend_got_header_size 0
48d502e1
BS
5466
5467#undef elf_backend_relocate_section
07d6d2b8 5468#define elf_backend_relocate_section bfinfdpic_relocate_section
48d502e1 5469#undef elf_backend_check_relocs
07d6d2b8 5470#define elf_backend_check_relocs bfinfdpic_check_relocs
48d502e1
BS
5471
5472#undef bfd_elf32_bfd_link_hash_table_create
5473#define bfd_elf32_bfd_link_hash_table_create \
5474 bfinfdpic_elf_link_hash_table_create
5475#undef elf_backend_always_size_sections
5476#define elf_backend_always_size_sections \
5477 elf32_bfinfdpic_always_size_sections
48d502e1
BS
5478
5479#undef elf_backend_create_dynamic_sections
5480#define elf_backend_create_dynamic_sections \
5481 elf32_bfinfdpic_create_dynamic_sections
5482#undef elf_backend_adjust_dynamic_symbol
5483#define elf_backend_adjust_dynamic_symbol \
5484 elf32_bfinfdpic_adjust_dynamic_symbol
5485#undef elf_backend_size_dynamic_sections
5486#define elf_backend_size_dynamic_sections \
5487 elf32_bfinfdpic_size_dynamic_sections
5488#undef elf_backend_finish_dynamic_symbol
5489#define elf_backend_finish_dynamic_symbol \
5490 elf32_bfinfdpic_finish_dynamic_symbol
5491#undef elf_backend_finish_dynamic_sections
5492#define elf_backend_finish_dynamic_sections \
5493 elf32_bfinfdpic_finish_dynamic_sections
5494
6a9adeca
BS
5495#undef elf_backend_discard_info
5496#define elf_backend_discard_info \
5497 bfinfdpic_elf_discard_info
48d502e1
BS
5498#undef elf_backend_can_make_relative_eh_frame
5499#define elf_backend_can_make_relative_eh_frame \
5500 bfinfdpic_elf_use_relative_eh_frame
5501#undef elf_backend_can_make_lsda_relative_eh_frame
5502#define elf_backend_can_make_lsda_relative_eh_frame \
5503 bfinfdpic_elf_use_relative_eh_frame
5504#undef elf_backend_encode_eh_address
5505#define elf_backend_encode_eh_address \
5506 bfinfdpic_elf_encode_eh_address
5507
5508#undef elf_backend_may_use_rel_p
07d6d2b8 5509#define elf_backend_may_use_rel_p 1
48d502e1 5510#undef elf_backend_may_use_rela_p
07d6d2b8 5511#define elf_backend_may_use_rela_p 1
48d502e1
BS
5512/* We use REL for dynamic relocations only. */
5513#undef elf_backend_default_use_rela_p
07d6d2b8 5514#define elf_backend_default_use_rela_p 1
48d502e1
BS
5515
5516#undef elf_backend_omit_section_dynsym
5517#define elf_backend_omit_section_dynsym _bfinfdpic_link_omit_section_dynsym
0f64bb02
CM
5518
5519#include "elf32-target.h"
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