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Return void from linker callbacks
[deliverable/binutils-gdb.git] / bfd / elf32-bfin.c
CommitLineData
3b55e94a 1/* ADI Blackfin BFD support for 32-bit ELF.
6f2750fe 2 Copyright (C) 2005-2016 Free Software Foundation, Inc.
0f64bb02
CM		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
0f64bb02
CM		 9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
0f64bb02 20
0f64bb02 21#include "sysdep.h"
3db64b00 22#include "bfd.h"
0f64bb02
CM		 23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/bfin.h"
fa8f86ff 26#include "dwarf2.h"
48d502e1 27#include "hashtab.h"
0f64bb02 28
0f64bb02
CM		 29/* FUNCTION : bfin_pltpc_reloc
30 ABSTRACT : TODO : figure out how to handle pltpc relocs. */
31static bfd_reloc_status_type
32bfin_pltpc_reloc (
33 bfd *abfd ATTRIBUTE_UNUSED,
34 arelent *reloc_entry ATTRIBUTE_UNUSED,
35 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 36 void * data ATTRIBUTE_UNUSED,
0f64bb02
CM		 37 asection *input_section ATTRIBUTE_UNUSED,
38 bfd *output_bfd ATTRIBUTE_UNUSED,
3b55e94a 39 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM		 40{
41 bfd_reloc_status_type flag = bfd_reloc_ok;
3b55e94a 42 return flag;
0f64bb02
CM		 43}
44\f
45
46static bfd_reloc_status_type
47bfin_pcrel24_reloc (bfd *abfd,
48 arelent *reloc_entry,
49 asymbol *symbol,
2c3fc389 50 void * data,
0f64bb02
CM		 51 asection *input_section,
52 bfd *output_bfd,
53 char **error_message ATTRIBUTE_UNUSED)
54{
55 bfd_vma relocation;
56 bfd_size_type addr = reloc_entry->address;
57 bfd_vma output_base = 0;
58 reloc_howto_type *howto = reloc_entry->howto;
59 asection *output_section;
60 bfd_boolean relocatable = (output_bfd != NULL);
61
62 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
63 return bfd_reloc_outofrange;
64
3b55e94a
BS		 65 if (bfd_is_und_section (symbol->section)
66 && (symbol->flags & BSF_WEAK) == 0
67 && !relocatable)
68 return bfd_reloc_undefined;
69
70 if (bfd_is_com_section (symbol->section))
71 relocation = 0;
0f64bb02 72 else
3b55e94a 73 relocation = symbol->value;
0f64bb02 74
3b55e94a
BS		 75 output_section = symbol->section->output_section;
76
77 if (relocatable)
78 output_base = 0;
79 else
80 output_base = output_section->vma;
81
82 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
83 relocation += output_base + symbol->section->output_offset;
0f64bb02 84
3b55e94a
BS		 85 if (!relocatable && !strcmp (symbol->name, symbol->section->name))
86 relocation += reloc_entry->addend;
0f64bb02 87
0f64bb02
CM		 88 relocation -= input_section->output_section->vma + input_section->output_offset;
89 relocation -= reloc_entry->address;
90
91 if (howto->complain_on_overflow != complain_overflow_dont)
92 {
93 bfd_reloc_status_type status;
3b55e94a
BS		 94 status = bfd_check_overflow (howto->complain_on_overflow,
95 howto->bitsize,
96 howto->rightshift,
97 bfd_arch_bits_per_address(abfd),
98 relocation);
0f64bb02
CM		 99 if (status != bfd_reloc_ok)
100 return status;
101 }
3b55e94a 102
0f64bb02
CM		 103 /* if rightshift is 1 and the number odd, return error. */
104 if (howto->rightshift && (relocation & 0x01))
105 {
4a97a0e5 106 (*_bfd_error_handler) (_("relocation should be even number"));
0f64bb02
CM		 107 return bfd_reloc_overflow;
108 }
109
110 relocation >>= (bfd_vma) howto->rightshift;
111 /* Shift everything up to where it's going to be used. */
112
113 relocation <<= (bfd_vma) howto->bitpos;
114
115 if (relocatable)
116 {
117 reloc_entry->address += input_section->output_offset;
118 reloc_entry->addend += symbol->section->output_offset;
119 }
120
121 {
122 short x;
123
124 /* We are getting reloc_entry->address 2 byte off from
3b55e94a
BS		 125 the start of instruction. Assuming absolute postion
126 of the reloc data. But, following code had been written assuming
127 reloc address is starting at begining of instruction.
128 To compensate that I have increased the value of
129 relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
0f64bb02
CM		 130
131 relocation += 1;
132 x = bfd_get_16 (abfd, (bfd_byte *) data + addr - 2);
133 x = (x & 0xff00) | ((relocation >> 16) & 0xff);
134 bfd_put_16 (abfd, x, (unsigned char *) data + addr - 2);
135
136 x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
137 x = relocation & 0xFFFF;
138 bfd_put_16 (abfd, x, (unsigned char *) data + addr );
139 }
140 return bfd_reloc_ok;
141}
142
143static bfd_reloc_status_type
3b55e94a
BS		 144bfin_imm16_reloc (bfd *abfd,
145 arelent *reloc_entry,
146 asymbol *symbol,
2c3fc389 147 void * data,
3b55e94a
BS		 148 asection *input_section,
149 bfd *output_bfd,
150 char **error_message ATTRIBUTE_UNUSED)
0f64bb02 151{
3b55e94a
BS		 152 bfd_vma relocation, x;
153 bfd_size_type reloc_addr = reloc_entry->address;
0f64bb02 154 bfd_vma output_base = 0;
3b55e94a 155 reloc_howto_type *howto = reloc_entry->howto;
0f64bb02
CM		 156 asection *output_section;
157 bfd_boolean relocatable = (output_bfd != NULL);
158
3b55e94a
BS		 159 /* Is the address of the relocation really within the section? */
160 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
161 return bfd_reloc_outofrange;
162
0f64bb02
CM		 163 if (bfd_is_und_section (symbol->section)
164 && (symbol->flags & BSF_WEAK) == 0
165 && !relocatable)
166 return bfd_reloc_undefined;
167
0f64bb02 168 output_section = symbol->section->output_section;
3b55e94a 169 relocation = symbol->value;
0f64bb02
CM		 170
171 /* Convert input-section-relative symbol value to absolute. */
172 if (relocatable)
173 output_base = 0;
174 else
175 output_base = output_section->vma;
176
3b55e94a 177 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
0f64bb02
CM		 178 relocation += output_base + symbol->section->output_offset;
179
180 /* Add in supplied addend. */
181 relocation += reloc_entry->addend;
182
183 if (relocatable)
184 {
185 reloc_entry->address += input_section->output_offset;
186 reloc_entry->addend += symbol->section->output_offset;
187 }
0f64bb02
CM		 188 else
189 {
190 reloc_entry->addend = 0;
191 }
192
193 if (howto->complain_on_overflow != complain_overflow_dont)
194 {
195 bfd_reloc_status_type flag;
196 flag = bfd_check_overflow (howto->complain_on_overflow,
3b55e94a
BS		 197 howto->bitsize,
198 howto->rightshift,
199 bfd_arch_bits_per_address(abfd),
200 relocation);
0f64bb02 201 if (flag != bfd_reloc_ok)
3b55e94a 202 return flag;
0f64bb02
CM		 203 }
204
0f64bb02
CM		 205 /* Here the variable relocation holds the final address of the
206 symbol we are relocating against, plus any addend. */
207
0f64bb02
CM		 208 relocation >>= (bfd_vma) howto->rightshift;
209 x = relocation;
210 bfd_put_16 (abfd, x, (unsigned char *) data + reloc_addr);
211 return bfd_reloc_ok;
212}
213
214
215static bfd_reloc_status_type
216bfin_byte4_reloc (bfd *abfd,
217 arelent *reloc_entry,
218 asymbol *symbol,
2c3fc389 219 void * data,
0f64bb02
CM		 220 asection *input_section,
221 bfd *output_bfd,
3b55e94a 222 char **error_message ATTRIBUTE_UNUSED)
0f64bb02
CM		 223{
224 bfd_vma relocation, x;
225 bfd_size_type addr = reloc_entry->address;
226 bfd_vma output_base = 0;
227 asection *output_section;
228 bfd_boolean relocatable = (output_bfd != NULL);
229
230 /* Is the address of the relocation really within the section? */
231 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
232 return bfd_reloc_outofrange;
233
3b55e94a
BS		 234 if (bfd_is_und_section (symbol->section)
235 && (symbol->flags & BSF_WEAK) == 0
236 && !relocatable)
237 return bfd_reloc_undefined;
0f64bb02 238
3b55e94a
BS		 239 output_section = symbol->section->output_section;
240 relocation = symbol->value;
241 /* Convert input-section-relative symbol value to absolute. */
242 if (relocatable)
243 output_base = 0;
0f64bb02 244 else
3b55e94a
BS		 245 output_base = output_section->vma;
246
247 if ((symbol->name
248 && symbol->section->name
249 && !strcmp (symbol->name, symbol->section->name))
250 || !relocatable)
0f64bb02 251 {
3b55e94a 252 relocation += output_base + symbol->section->output_offset;
0f64bb02
CM		 253 }
254
3b55e94a
BS		 255 relocation += reloc_entry->addend;
256
0f64bb02 257 if (relocatable)
3b55e94a 258 {
0f64bb02
CM		 259 /* This output will be relocatable ... like ld -r. */
260 reloc_entry->address += input_section->output_offset;
261 reloc_entry->addend += symbol->section->output_offset;
262 }
263 else
264 {
265 reloc_entry->addend = 0;
266 }
267
268 /* Here the variable relocation holds the final address of the
269 symbol we are relocating against, plus any addend. */
270 x = relocation & 0xFFFF0000;
271 x >>=16;
272 bfd_put_16 (abfd, x, (unsigned char *) data + addr + 2);
3b55e94a 273
0f64bb02
CM		 274 x = relocation & 0x0000FFFF;
275 bfd_put_16 (abfd, x, (unsigned char *) data + addr);
276 return bfd_reloc_ok;
277}
278
279/* bfin_bfd_reloc handles the blackfin arithmetic relocations.
280 Use this instead of bfd_perform_relocation. */
281static bfd_reloc_status_type
282bfin_bfd_reloc (bfd *abfd,
283 arelent *reloc_entry,
284 asymbol *symbol,
2c3fc389 285 void * data,
0f64bb02
CM		 286 asection *input_section,
287 bfd *output_bfd,
288 char **error_message ATTRIBUTE_UNUSED)
289{
290 bfd_vma relocation;
291 bfd_size_type addr = reloc_entry->address;
292 bfd_vma output_base = 0;
293 reloc_howto_type *howto = reloc_entry->howto;
294 asection *output_section;
295 bfd_boolean relocatable = (output_bfd != NULL);
296
297 /* Is the address of the relocation really within the section? */
298 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
299 return bfd_reloc_outofrange;
300
3b55e94a
BS		 301 if (bfd_is_und_section (symbol->section)
302 && (symbol->flags & BSF_WEAK) == 0
303 && !relocatable)
304 return bfd_reloc_undefined;
305
306 /* Get symbol value. (Common symbols are special.) */
307 if (bfd_is_com_section (symbol->section))
308 relocation = 0;
0f64bb02 309 else
3b55e94a
BS		 310 relocation = symbol->value;
311
312 output_section = symbol->section->output_section;
313
314 /* Convert input-section-relative symbol value to absolute. */
315 if (relocatable)
316 output_base = 0;
317 else
318 output_base = output_section->vma;
319
320 if (!relocatable || !strcmp (symbol->name, symbol->section->name))
321 relocation += output_base + symbol->section->output_offset;
322
323 if (!relocatable && !strcmp (symbol->name, symbol->section->name))
0f64bb02 324 {
3b55e94a
BS		 325 /* Add in supplied addend. */
326 relocation += reloc_entry->addend;
0f64bb02 327 }
3b55e94a 328
0f64bb02
CM		 329 /* Here the variable relocation holds the final address of the
330 symbol we are relocating against, plus any addend. */
331
332 if (howto->pc_relative == TRUE)
333 {
334 relocation -= input_section->output_section->vma + input_section->output_offset;
335
336 if (howto->pcrel_offset == TRUE)
337 relocation -= reloc_entry->address;
338 }
339
340 if (relocatable)
341 {
342 reloc_entry->address += input_section->output_offset;
343 reloc_entry->addend += symbol->section->output_offset;
344 }
345
346 if (howto->complain_on_overflow != complain_overflow_dont)
347 {
348 bfd_reloc_status_type status;
349
3b55e94a 350 status = bfd_check_overflow (howto->complain_on_overflow,
0f64bb02 351 howto->bitsize,
3b55e94a 352 howto->rightshift,
0f64bb02
CM		 353 bfd_arch_bits_per_address(abfd),
354 relocation);
355 if (status != bfd_reloc_ok)
356 return status;
357 }
3b55e94a 358
0f64bb02
CM		 359 /* If rightshift is 1 and the number odd, return error. */
360 if (howto->rightshift && (relocation & 0x01))
361 {
4a97a0e5 362 (*_bfd_error_handler) (_("relocation should be even number"));
0f64bb02
CM		 363 return bfd_reloc_overflow;
364 }
365
366 relocation >>= (bfd_vma) howto->rightshift;
367
368 /* Shift everything up to where it's going to be used. */
369
370 relocation <<= (bfd_vma) howto->bitpos;
371
3b55e94a 372#define DOIT(x) \
0f64bb02
CM		 373 x = ( (x & ~howto->dst_mask) | (relocation & howto->dst_mask))
374
375 /* handle 8 and 16 bit relocations here. */
376 switch (howto->size)
377 {
378 case 0:
379 {
380 char x = bfd_get_8 (abfd, (char *) data + addr);
381 DOIT (x);
382 bfd_put_8 (abfd, x, (unsigned char *) data + addr);
383 }
384 break;
385
386 case 1:
387 {
388 unsigned short x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
389 DOIT (x);
390 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + addr);
391 }
392 break;
393
394 default:
395 return bfd_reloc_other;
396 }
397
3b55e94a 398 return bfd_reloc_ok;
0f64bb02
CM		 399}
400
0f64bb02
CM		 401/* HOWTO Table for blackfin.
402 Blackfin relocations are fairly complicated.
403 Some of the salient features are
404 a. Even numbered offsets. A number of (not all) relocations are
405 even numbered. This means that the rightmost bit is not stored.
406 Needs to right shift by 1 and check to see if value is not odd
407 b. A relocation can be an expression. An expression takes on
408 a variety of relocations arranged in a stack.
409 As a result, we cannot use the standard generic function as special
410 function. We will have our own, which is very similar to the standard
411 generic function except that it understands how to get the value from
412 the relocation stack. . */
413
414#define BFIN_RELOC_MIN 0
48d502e1 415#define BFIN_RELOC_MAX 0x21
0f64bb02
CM		 416#define BFIN_GNUEXT_RELOC_MIN 0x40
417#define BFIN_GNUEXT_RELOC_MAX 0x43
418#define BFIN_ARELOC_MIN 0xE0
419#define BFIN_ARELOC_MAX 0xF3
420
421static reloc_howto_type bfin_howto_table [] =
422{
423 /* This reloc does nothing. . */
cb88ce9f 424 HOWTO (R_BFIN_UNUSED0, /* type. */
0f64bb02 425 0, /* rightshift. */
6346d5ca
AM		 426 3, /* size (0 = byte, 1 = short, 2 = long). */
427 0, /* bitsize. */
0f64bb02
CM		 428 FALSE, /* pc_relative. */
429 0, /* bitpos. */
6346d5ca 430 complain_overflow_dont, /* complain_on_overflow. */
0f64bb02 431 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 432 "R_BFIN_UNUSED0", /* name. */
0f64bb02
CM		 433 FALSE, /* partial_inplace. */
434 0, /* src_mask. */
435 0, /* dst_mask. */
436 FALSE), /* pcrel_offset. */
437
cb88ce9f 438 HOWTO (R_BFIN_PCREL5M2, /* type. */
0f64bb02
CM		 439 1, /* rightshift. */
440 1, /* size (0 = byte, 1 = short, 2 = long).. */
441 4, /* bitsize. */
442 TRUE, /* pc_relative. */
443 0, /* bitpos. */
444 complain_overflow_unsigned, /* complain_on_overflow. */
445 bfin_bfd_reloc, /* special_function. */
cb88ce9f 446 "R_BFIN_PCREL5M2", /* name. */
0f64bb02 447 FALSE, /* partial_inplace. */
f4707595 448 0, /* src_mask. */
0f64bb02
CM		 449 0x0000000F, /* dst_mask. */
450 FALSE), /* pcrel_offset. */
451
cb88ce9f 452 HOWTO (R_BFIN_UNUSED1, /* type. */
0f64bb02 453 0, /* rightshift. */
6346d5ca
AM		 454 3, /* size (0 = byte, 1 = short, 2 = long). */
455 0, /* bitsize. */
0f64bb02
CM		 456 FALSE, /* pc_relative. */
457 0, /* bitpos. */
6346d5ca 458 complain_overflow_dont, /* complain_on_overflow. */
0f64bb02 459 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 460 "R_BFIN_UNUSED1", /* name. */
0f64bb02
CM		 461 FALSE, /* partial_inplace. */
462 0, /* src_mask. */
463 0, /* dst_mask. */
464 FALSE), /* pcrel_offset. */
465
cb88ce9f 466 HOWTO (R_BFIN_PCREL10, /* type. */
0f64bb02
CM		 467 1, /* rightshift. */
468 1, /* size (0 = byte, 1 = short, 2 = long). */
469 10, /* bitsize. */
470 TRUE, /* pc_relative. */
471 0, /* bitpos. */
472 complain_overflow_signed, /* complain_on_overflow. */
473 bfin_bfd_reloc, /* special_function. */
cb88ce9f 474 "R_BFIN_PCREL10", /* name. */
0f64bb02 475 FALSE, /* partial_inplace. */
f4707595 476 0, /* src_mask. */
0f64bb02
CM		 477 0x000003FF, /* dst_mask. */
478 TRUE), /* pcrel_offset. */
3b55e94a 479
cb88ce9f 480 HOWTO (R_BFIN_PCREL12_JUMP, /* type. */
0f64bb02
CM		 481 1, /* rightshift. */
482 /* the offset is actually 13 bit
483 aligned on a word boundary so
484 only 12 bits have to be used.
485 Right shift the rightmost bit.. */
486 1, /* size (0 = byte, 1 = short, 2 = long). */
487 12, /* bitsize. */
488 TRUE, /* pc_relative. */
489 0, /* bitpos. */
490 complain_overflow_signed, /* complain_on_overflow. */
491 bfin_bfd_reloc, /* special_function. */
cb88ce9f 492 "R_BFIN_PCREL12_JUMP", /* name. */
0f64bb02 493 FALSE, /* partial_inplace. */
f4707595 494 0, /* src_mask. */
0f64bb02
CM		 495 0x0FFF, /* dst_mask. */
496 TRUE), /* pcrel_offset. */
497
cb88ce9f 498 HOWTO (R_BFIN_RIMM16, /* type. */
0f64bb02
CM		 499 0, /* rightshift. */
500 1, /* size (0 = byte, 1 = short, 2 = long). */
501 16, /* bitsize. */
502 FALSE, /* pc_relative. */
503 0, /* bitpos. */
504 complain_overflow_signed, /* complain_on_overflow. */
505 bfin_imm16_reloc, /* special_function. */
cb88ce9f 506 "R_BFIN_RIMM16", /* name. */
0f64bb02 507 FALSE, /* partial_inplace. */
f4707595 508 0, /* src_mask. */
0f64bb02
CM		 509 0x0000FFFF, /* dst_mask. */
510 TRUE), /* pcrel_offset. */
511
cb88ce9f 512 HOWTO (R_BFIN_LUIMM16, /* type. */
0f64bb02
CM		 513 0, /* rightshift. */
514 1, /* size (0 = byte, 1 = short, 2 = long). */
515 16, /* bitsize. */
516 FALSE, /* pc_relative. */
517 0, /* bitpos. */
518 complain_overflow_dont, /* complain_on_overflow. */
519 bfin_imm16_reloc, /* special_function. */
cb88ce9f 520 "R_BFIN_LUIMM16", /* name. */
0f64bb02 521 FALSE, /* partial_inplace. */
f4707595 522 0, /* src_mask. */
0f64bb02
CM		 523 0x0000FFFF, /* dst_mask. */
524 TRUE), /* pcrel_offset. */
3b55e94a 525
cb88ce9f 526 HOWTO (R_BFIN_HUIMM16, /* type. */
0f64bb02
CM		 527 16, /* rightshift. */
528 1, /* size (0 = byte, 1 = short, 2 = long). */
529 16, /* bitsize. */
530 FALSE, /* pc_relative. */
531 0, /* bitpos. */
532 complain_overflow_unsigned, /* complain_on_overflow. */
533 bfin_imm16_reloc, /* special_function. */
cb88ce9f 534 "R_BFIN_HUIMM16", /* name. */
0f64bb02 535 FALSE, /* partial_inplace. */
f4707595 536 0, /* src_mask. */
0f64bb02
CM		 537 0x0000FFFF, /* dst_mask. */
538 TRUE), /* pcrel_offset. */
539
cb88ce9f 540 HOWTO (R_BFIN_PCREL12_JUMP_S, /* type. */
0f64bb02
CM		 541 1, /* rightshift. */
542 1, /* size (0 = byte, 1 = short, 2 = long). */
543 12, /* bitsize. */
544 TRUE, /* pc_relative. */
545 0, /* bitpos. */
546 complain_overflow_signed, /* complain_on_overflow. */
547 bfin_bfd_reloc, /* special_function. */
cb88ce9f 548 "R_BFIN_PCREL12_JUMP_S", /* name. */
0f64bb02 549 FALSE, /* partial_inplace. */
f4707595 550 0, /* src_mask. */
0f64bb02
CM		 551 0x00000FFF, /* dst_mask. */
552 TRUE), /* pcrel_offset. */
553
cb88ce9f 554 HOWTO (R_BFIN_PCREL24_JUMP_X, /* type. */
0f64bb02
CM		 555 1, /* rightshift. */
556 2, /* size (0 = byte, 1 = short, 2 = long). */
557 24, /* bitsize. */
558 TRUE, /* pc_relative. */
559 0, /* bitpos. */
560 complain_overflow_signed, /* complain_on_overflow. */
561 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 562 "R_BFIN_PCREL24_JUMP_X", /* name. */
0f64bb02 563 FALSE, /* partial_inplace. */
f4707595 564 0, /* src_mask. */
0f64bb02
CM		 565 0x00FFFFFF, /* dst_mask. */
566 TRUE), /* pcrel_offset. */
567
cb88ce9f 568 HOWTO (R_BFIN_PCREL24, /* type. */
0f64bb02
CM		 569 1, /* rightshift. */
570 2, /* size (0 = byte, 1 = short, 2 = long). */
571 24, /* bitsize. */
572 TRUE, /* pc_relative. */
573 0, /* bitpos. */
574 complain_overflow_signed, /* complain_on_overflow. */
575 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 576 "R_BFIN_PCREL24", /* name. */
0f64bb02 577 FALSE, /* partial_inplace. */
f4707595 578 0, /* src_mask. */
0f64bb02
CM		 579 0x00FFFFFF, /* dst_mask. */
580 TRUE), /* pcrel_offset. */
581
cb88ce9f 582 HOWTO (R_BFIN_UNUSEDB, /* type. */
0f64bb02 583 0, /* rightshift. */
6346d5ca
AM		 584 3, /* size (0 = byte, 1 = short, 2 = long). */
585 0, /* bitsize. */
0f64bb02
CM		 586 FALSE, /* pc_relative. */
587 0, /* bitpos. */
588 complain_overflow_dont, /* complain_on_overflow. */
589 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 590 "R_BFIN_UNUSEDB", /* name. */
0f64bb02
CM		 591 FALSE, /* partial_inplace. */
592 0, /* src_mask. */
593 0, /* dst_mask. */
594 FALSE), /* pcrel_offset. */
595
cb88ce9f 596 HOWTO (R_BFIN_UNUSEDC, /* type. */
0f64bb02 597 0, /* rightshift. */
6346d5ca
AM		 598 3, /* size (0 = byte, 1 = short, 2 = long). */
599 0, /* bitsize. */
0f64bb02
CM		 600 FALSE, /* pc_relative. */
601 0, /* bitpos. */
602 complain_overflow_dont, /* complain_on_overflow. */
603 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 604 "R_BFIN_UNUSEDC", /* name. */
0f64bb02
CM		 605 FALSE, /* partial_inplace. */
606 0, /* src_mask. */
607 0, /* dst_mask. */
608 FALSE), /* pcrel_offset. */
609
cb88ce9f 610 HOWTO (R_BFIN_PCREL24_JUMP_L, /* type. */
0f64bb02
CM		 611 1, /* rightshift. */
612 2, /* size (0 = byte, 1 = short, 2 = long). */
613 24, /* bitsize. */
614 TRUE, /* pc_relative. */
615 0, /* bitpos. */
616 complain_overflow_signed, /* complain_on_overflow. */
617 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 618 "R_BFIN_PCREL24_JUMP_L", /* name. */
0f64bb02 619 FALSE, /* partial_inplace. */
f4707595 620 0, /* src_mask. */
0f64bb02
CM		 621 0x00FFFFFF, /* dst_mask. */
622 TRUE), /* pcrel_offset. */
623
cb88ce9f 624 HOWTO (R_BFIN_PCREL24_CALL_X, /* type. */
0f64bb02
CM		 625 1, /* rightshift. */
626 2, /* size (0 = byte, 1 = short, 2 = long). */
627 24, /* bitsize. */
628 TRUE, /* pc_relative. */
629 0, /* bitpos. */
630 complain_overflow_signed, /* complain_on_overflow. */
631 bfin_pcrel24_reloc, /* special_function. */
cb88ce9f 632 "R_BFIN_PCREL24_CALL_X", /* name. */
0f64bb02 633 FALSE, /* partial_inplace. */
f4707595 634 0, /* src_mask. */
0f64bb02
CM		 635 0x00FFFFFF, /* dst_mask. */
636 TRUE), /* pcrel_offset. */
637
cb88ce9f 638 HOWTO (R_BFIN_VAR_EQ_SYMB, /* type. */
0f64bb02
CM		 639 0, /* rightshift. */
640 2, /* size (0 = byte, 1 = short, 2 = long). */
641 32, /* bitsize. */
642 FALSE, /* pc_relative. */
643 0, /* bitpos. */
644 complain_overflow_bitfield, /* complain_on_overflow. */
645 bfin_bfd_reloc, /* special_function. */
cb88ce9f 646 "R_BFIN_VAR_EQ_SYMB", /* name. */
0f64bb02
CM		 647 FALSE, /* partial_inplace. */
648 0, /* src_mask. */
649 0, /* dst_mask. */
650 FALSE), /* pcrel_offset. */
651
cb88ce9f 652 HOWTO (R_BFIN_BYTE_DATA, /* type. */
0f64bb02
CM		 653 0, /* rightshift. */
654 0, /* size (0 = byte, 1 = short, 2 = long). */
655 8, /* bitsize. */
656 FALSE, /* pc_relative. */
657 0, /* bitpos. */
658 complain_overflow_unsigned, /* complain_on_overflow. */
659 bfin_bfd_reloc, /* special_function. */
cb88ce9f 660 "R_BFIN_BYTE_DATA", /* name. */
0f64bb02 661 FALSE, /* partial_inplace. */
f4707595 662 0, /* src_mask. */
0f64bb02
CM		 663 0xFF, /* dst_mask. */
664 TRUE), /* pcrel_offset. */
665
cb88ce9f 666 HOWTO (R_BFIN_BYTE2_DATA, /* type. */
0f64bb02
CM		 667 0, /* rightshift. */
668 1, /* size (0 = byte, 1 = short, 2 = long). */
669 16, /* bitsize. */
670 FALSE, /* pc_relative. */
671 0, /* bitpos. */
672 complain_overflow_signed, /* complain_on_overflow. */
673 bfin_bfd_reloc, /* special_function. */
cb88ce9f 674 "R_BFIN_BYTE2_DATA", /* name. */
0f64bb02 675 FALSE, /* partial_inplace. */
f4707595 676 0, /* src_mask. */
0f64bb02
CM		 677 0xFFFF, /* dst_mask. */
678 TRUE), /* pcrel_offset. */
679
cb88ce9f 680 HOWTO (R_BFIN_BYTE4_DATA, /* type. */
0f64bb02
CM		 681 0, /* rightshift. */
682 2, /* size (0 = byte, 1 = short, 2 = long). */
683 32, /* bitsize. */
684 FALSE, /* pc_relative. */
685 0, /* bitpos. */
686 complain_overflow_unsigned, /* complain_on_overflow. */
687 bfin_byte4_reloc, /* special_function. */
cb88ce9f 688 "R_BFIN_BYTE4_DATA", /* name. */
0f64bb02 689 FALSE, /* partial_inplace. */
f4707595 690 0, /* src_mask. */
0f64bb02
CM		 691 0xFFFFFFFF, /* dst_mask. */
692 TRUE), /* pcrel_offset. */
693
cb88ce9f 694 HOWTO (R_BFIN_PCREL11, /* type. */
0f64bb02
CM		 695 1, /* rightshift. */
696 1, /* size (0 = byte, 1 = short, 2 = long). */
697 10, /* bitsize. */
698 TRUE, /* pc_relative. */
699 0, /* bitpos. */
700 complain_overflow_unsigned, /* complain_on_overflow. */
701 bfin_bfd_reloc, /* special_function. */
cb88ce9f 702 "R_BFIN_PCREL11", /* name. */
0f64bb02 703 FALSE, /* partial_inplace. */
f4707595 704 0, /* src_mask. */
0f64bb02
CM		 705 0x000003FF, /* dst_mask. */
706 FALSE), /* pcrel_offset. */
48d502e1
BS		 707
708
709 /* A 18-bit signed operand with the GOT offset for the address of
710 the symbol. */
711 HOWTO (R_BFIN_GOT17M4, /* type */
712 2, /* rightshift */
713 1, /* size (0 = byte, 1 = short, 2 = long) */
714 16, /* bitsize */
715 FALSE, /* pc_relative */
716 0, /* bitpos */
717 complain_overflow_signed, /* complain_on_overflow */
718 bfd_elf_generic_reloc, /* special_function */
5dff4664 719 "R_BFIN_GOT17M4", /* name */
48d502e1
BS		 720 FALSE, /* partial_inplace */
721 0xffff, /* src_mask */
722 0xffff, /* dst_mask */
723 FALSE), /* pcrel_offset */
724
725 /* The upper 16 bits of the GOT offset for the address of the
726 symbol. */
727 HOWTO (R_BFIN_GOTHI, /* type */
728 0, /* rightshift */
729 1, /* size (0 = byte, 1 = short, 2 = long) */
730 16, /* bitsize */
731 FALSE, /* pc_relative */
732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
734 bfd_elf_generic_reloc, /* special_function */
735 "R_BFIN_GOTHI", /* name */
736 FALSE, /* partial_inplace */
737 0xffff, /* src_mask */
738 0xffff, /* dst_mask */
739 FALSE), /* pcrel_offset */
740
741 /* The lower 16 bits of the GOT offset for the address of the
742 symbol. */
743 HOWTO (R_BFIN_GOTLO, /* type */
744 0, /* rightshift */
745 1, /* size (0 = byte, 1 = short, 2 = long) */
746 16, /* bitsize */
747 FALSE, /* pc_relative */
748 0, /* bitpos */
749 complain_overflow_dont, /* complain_on_overflow */
750 bfd_elf_generic_reloc, /* special_function */
751 "R_BFIN_GOTLO", /* name */
752 FALSE, /* partial_inplace */
753 0xffff, /* src_mask */
754 0xffff, /* dst_mask */
755 FALSE), /* pcrel_offset */
756
757 /* The 32-bit address of the canonical descriptor of a function. */
758 HOWTO (R_BFIN_FUNCDESC, /* type */
759 0, /* rightshift */
760 2, /* size (0 = byte, 1 = short, 2 = long) */
761 32, /* bitsize */
762 FALSE, /* pc_relative */
763 0, /* bitpos */
764 complain_overflow_bitfield, /* complain_on_overflow */
765 bfd_elf_generic_reloc, /* special_function */
766 "R_BFIN_FUNCDESC", /* name */
767 FALSE, /* partial_inplace */
768 0xffffffff, /* src_mask */
769 0xffffffff, /* dst_mask */
770 FALSE), /* pcrel_offset */
771
772 /* A 12-bit signed operand with the GOT offset for the address of
773 canonical descriptor of a function. */
774 HOWTO (R_BFIN_FUNCDESC_GOT17M4, /* type */
775 2, /* rightshift */
776 1, /* size (0 = byte, 1 = short, 2 = long) */
777 16, /* bitsize */
778 FALSE, /* pc_relative */
779 0, /* bitpos */
780 complain_overflow_signed, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_BFIN_FUNCDESC_GOT17M4", /* name */
783 FALSE, /* partial_inplace */
784 0xffff, /* src_mask */
785 0xffff, /* dst_mask */
786 FALSE), /* pcrel_offset */
787
788 /* The upper 16 bits of the GOT offset for the address of the
789 canonical descriptor of a function. */
790 HOWTO (R_BFIN_FUNCDESC_GOTHI, /* type */
791 0, /* rightshift */
792 1, /* size (0 = byte, 1 = short, 2 = long) */
793 16, /* bitsize */
794 FALSE, /* pc_relative */
795 0, /* bitpos */
796 complain_overflow_dont, /* complain_on_overflow */
797 bfd_elf_generic_reloc, /* special_function */
798 "R_BFIN_FUNCDESC_GOTHI", /* name */
799 FALSE, /* partial_inplace */
800 0xffff, /* src_mask */
801 0xffff, /* dst_mask */
802 FALSE), /* pcrel_offset */
803
804 /* The lower 16 bits of the GOT offset for the address of the
805 canonical descriptor of a function. */
806 HOWTO (R_BFIN_FUNCDESC_GOTLO, /* type */
807 0, /* rightshift */
808 1, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_BFIN_FUNCDESC_GOTLO", /* name */
815 FALSE, /* partial_inplace */
816 0xffff, /* src_mask */
817 0xffff, /* dst_mask */
818 FALSE), /* pcrel_offset */
819
820 /* The 32-bit address of the canonical descriptor of a function. */
821 HOWTO (R_BFIN_FUNCDESC_VALUE, /* type */
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 64, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_bitfield, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_BFIN_FUNCDESC_VALUE", /* name */
830 FALSE, /* partial_inplace */
831 0xffffffff, /* src_mask */
832 0xffffffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
834
835 /* A 12-bit signed operand with the GOT offset for the address of
836 canonical descriptor of a function. */
837 HOWTO (R_BFIN_FUNCDESC_GOTOFF17M4, /* type */
838 2, /* rightshift */
839 1, /* size (0 = byte, 1 = short, 2 = long) */
840 16, /* bitsize */
841 FALSE, /* pc_relative */
842 0, /* bitpos */
843 complain_overflow_signed, /* complain_on_overflow */
844 bfd_elf_generic_reloc, /* special_function */
845 "R_BFIN_FUNCDESC_GOTOFF17M4", /* name */
846 FALSE, /* partial_inplace */
847 0xffff, /* src_mask */
848 0xffff, /* dst_mask */
849 FALSE), /* pcrel_offset */
850
851 /* The upper 16 bits of the GOT offset for the address of the
852 canonical descriptor of a function. */
853 HOWTO (R_BFIN_FUNCDESC_GOTOFFHI, /* type */
854 0, /* rightshift */
855 1, /* size (0 = byte, 1 = short, 2 = long) */
856 16, /* bitsize */
857 FALSE, /* pc_relative */
858 0, /* bitpos */
859 complain_overflow_dont, /* complain_on_overflow */
860 bfd_elf_generic_reloc, /* special_function */
861 "R_BFIN_FUNCDESC_GOTOFFHI", /* name */
862 FALSE, /* partial_inplace */
863 0xffff, /* src_mask */
864 0xffff, /* dst_mask */
865 FALSE), /* pcrel_offset */
866
867 /* The lower 16 bits of the GOT offset for the address of the
868 canonical descriptor of a function. */
869 HOWTO (R_BFIN_FUNCDESC_GOTOFFLO, /* type */
870 0, /* rightshift */
871 1, /* size (0 = byte, 1 = short, 2 = long) */
872 16, /* bitsize */
873 FALSE, /* pc_relative */
874 0, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
876 bfd_elf_generic_reloc, /* special_function */
877 "R_BFIN_FUNCDESC_GOTOFFLO", /* name */
878 FALSE, /* partial_inplace */
879 0xffff, /* src_mask */
880 0xffff, /* dst_mask */
881 FALSE), /* pcrel_offset */
882
883 /* A 12-bit signed operand with the GOT offset for the address of
884 the symbol. */
885 HOWTO (R_BFIN_GOTOFF17M4, /* type */
886 2, /* rightshift */
887 1, /* size (0 = byte, 1 = short, 2 = long) */
888 16, /* bitsize */
889 FALSE, /* pc_relative */
890 0, /* bitpos */
891 complain_overflow_signed, /* complain_on_overflow */
892 bfd_elf_generic_reloc, /* special_function */
893 "R_BFIN_GOTOFF17M4", /* name */
894 FALSE, /* partial_inplace */
895 0xffff, /* src_mask */
896 0xffff, /* dst_mask */
897 FALSE), /* pcrel_offset */
898
899 /* The upper 16 bits of the GOT offset for the address of the
900 symbol. */
901 HOWTO (R_BFIN_GOTOFFHI, /* type */
902 0, /* rightshift */
903 1, /* size (0 = byte, 1 = short, 2 = long) */
904 16, /* bitsize */
905 FALSE, /* pc_relative */
906 0, /* bitpos */
907 complain_overflow_dont, /* complain_on_overflow */
908 bfd_elf_generic_reloc, /* special_function */
909 "R_BFIN_GOTOFFHI", /* name */
910 FALSE, /* partial_inplace */
911 0xffff, /* src_mask */
912 0xffff, /* dst_mask */
913 FALSE), /* pcrel_offset */
914
915 /* The lower 16 bits of the GOT offset for the address of the
916 symbol. */
917 HOWTO (R_BFIN_GOTOFFLO, /* type */
918 0, /* rightshift */
919 1, /* size (0 = byte, 1 = short, 2 = long) */
920 16, /* bitsize */
921 FALSE, /* pc_relative */
922 0, /* bitpos */
923 complain_overflow_dont, /* complain_on_overflow */
924 bfd_elf_generic_reloc, /* special_function */
925 "R_BFIN_GOTOFFLO", /* name */
926 FALSE, /* partial_inplace */
927 0xffff, /* src_mask */
928 0xffff, /* dst_mask */
929 FALSE), /* pcrel_offset */
0f64bb02
CM		 930};
931
0f64bb02
CM		 932static reloc_howto_type bfin_gnuext_howto_table [] =
933{
cb88ce9f 934 HOWTO (R_BFIN_PLTPC, /* type. */
0f64bb02
CM		 935 0, /* rightshift. */
936 1, /* size (0 = byte, 1 = short, 2 = long). */
937 16, /* bitsize. */
938 FALSE, /* pc_relative. */
939 0, /* bitpos. */
940 complain_overflow_bitfield, /* complain_on_overflow. */
941 bfin_pltpc_reloc, /* special_function. */
cb88ce9f 942 "R_BFIN_PLTPC", /* name. */
0f64bb02
CM		 943 FALSE, /* partial_inplace. */
944 0xffff, /* src_mask. */
945 0xffff, /* dst_mask. */
946 FALSE), /* pcrel_offset. */
947
cb88ce9f 948 HOWTO (R_BFIN_GOT, /* type. */
0f64bb02
CM		 949 0, /* rightshift. */
950 1, /* size (0 = byte, 1 = short, 2 = long). */
951 16, /* bitsize. */
952 FALSE, /* pc_relative. */
953 0, /* bitpos. */
954 complain_overflow_bitfield, /* complain_on_overflow. */
955 bfd_elf_generic_reloc, /* special_function. */
cb88ce9f 956 "R_BFIN_GOT", /* name. */
0f64bb02
CM		 957 FALSE, /* partial_inplace. */
958 0x7fff, /* src_mask. */
959 0x7fff, /* dst_mask. */
960 FALSE), /* pcrel_offset. */
961
962/* GNU extension to record C++ vtable hierarchy. */
963 HOWTO (R_BFIN_GNU_VTINHERIT, /* type. */
964 0, /* rightshift. */
965 2, /* size (0 = byte, 1 = short, 2 = long). */
966 0, /* bitsize. */
967 FALSE, /* pc_relative. */
968 0, /* bitpos. */
969 complain_overflow_dont, /* complain_on_overflow. */
970 NULL, /* special_function. */
971 "R_BFIN_GNU_VTINHERIT", /* name. */
972 FALSE, /* partial_inplace. */
973 0, /* src_mask. */
974 0, /* dst_mask. */
975 FALSE), /* pcrel_offset. */
976
977/* GNU extension to record C++ vtable member usage. */
978 HOWTO (R_BFIN_GNU_VTENTRY, /* type. */
979 0, /* rightshift. */
980 2, /* size (0 = byte, 1 = short, 2 = long). */
981 0, /* bitsize. */
982 FALSE, /* pc_relative. */
983 0, /* bitpos. */
984 complain_overflow_dont, /* complain_on_overflow. */
985 _bfd_elf_rel_vtable_reloc_fn, /* special_function. */
986 "R_BFIN_GNU_VTENTRY", /* name. */
987 FALSE, /* partial_inplace. */
988 0, /* src_mask. */
989 0, /* dst_mask. */
990 FALSE) /* pcrel_offset. */
991};
992
993struct bfin_reloc_map
994{
995 bfd_reloc_code_real_type bfd_reloc_val;
996 unsigned int bfin_reloc_val;
997};
998
999static const struct bfin_reloc_map bfin_reloc_map [] =
1000{
cb88ce9f
BS		 1001 { BFD_RELOC_NONE, R_BFIN_UNUSED0 },
1002 { BFD_RELOC_BFIN_5_PCREL, R_BFIN_PCREL5M2 },
1003 { BFD_RELOC_NONE, R_BFIN_UNUSED1 },
1004 { BFD_RELOC_BFIN_10_PCREL, R_BFIN_PCREL10 },
1005 { BFD_RELOC_BFIN_12_PCREL_JUMP, R_BFIN_PCREL12_JUMP },
1006 { BFD_RELOC_BFIN_16_IMM, R_BFIN_RIMM16 },
1007 { BFD_RELOC_BFIN_16_LOW, R_BFIN_LUIMM16 },
1008 { BFD_RELOC_BFIN_16_HIGH, R_BFIN_HUIMM16 },
1009 { BFD_RELOC_BFIN_12_PCREL_JUMP_S, R_BFIN_PCREL12_JUMP_S },
1010 { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
1011 { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
1012 { BFD_RELOC_BFIN_24_PCREL_JUMP_L, R_BFIN_PCREL24_JUMP_L },
1013 { BFD_RELOC_NONE, R_BFIN_UNUSEDB },
1014 { BFD_RELOC_NONE, R_BFIN_UNUSEDC },
1015 { BFD_RELOC_BFIN_24_PCREL_CALL_X, R_BFIN_PCREL24_CALL_X },
1016 { BFD_RELOC_8, R_BFIN_BYTE_DATA },
1017 { BFD_RELOC_16, R_BFIN_BYTE2_DATA },
1018 { BFD_RELOC_32, R_BFIN_BYTE4_DATA },
1019 { BFD_RELOC_BFIN_11_PCREL, R_BFIN_PCREL11 },
1020 { BFD_RELOC_BFIN_GOT, R_BFIN_GOT },
1021 { BFD_RELOC_BFIN_PLTPC, R_BFIN_PLTPC },
48d502e1
BS		 1022
1023 { BFD_RELOC_BFIN_GOT17M4, R_BFIN_GOT17M4 },
1024 { BFD_RELOC_BFIN_GOTHI, R_BFIN_GOTHI },
1025 { BFD_RELOC_BFIN_GOTLO, R_BFIN_GOTLO },
1026 { BFD_RELOC_BFIN_FUNCDESC, R_BFIN_FUNCDESC },
1027 { BFD_RELOC_BFIN_FUNCDESC_GOT17M4, R_BFIN_FUNCDESC_GOT17M4 },
1028 { BFD_RELOC_BFIN_FUNCDESC_GOTHI, R_BFIN_FUNCDESC_GOTHI },
1029 { BFD_RELOC_BFIN_FUNCDESC_GOTLO, R_BFIN_FUNCDESC_GOTLO },
1030 { BFD_RELOC_BFIN_FUNCDESC_VALUE, R_BFIN_FUNCDESC_VALUE },
1031 { BFD_RELOC_BFIN_FUNCDESC_GOTOFF17M4, R_BFIN_FUNCDESC_GOTOFF17M4 },
1032 { BFD_RELOC_BFIN_FUNCDESC_GOTOFFHI, R_BFIN_FUNCDESC_GOTOFFHI },
1033 { BFD_RELOC_BFIN_FUNCDESC_GOTOFFLO, R_BFIN_FUNCDESC_GOTOFFLO },
1034 { BFD_RELOC_BFIN_GOTOFF17M4, R_BFIN_GOTOFF17M4 },
1035 { BFD_RELOC_BFIN_GOTOFFHI, R_BFIN_GOTOFFHI },
1036 { BFD_RELOC_BFIN_GOTOFFLO, R_BFIN_GOTOFFLO },
1037
0f64bb02
CM		 1038 { BFD_RELOC_VTABLE_INHERIT, R_BFIN_GNU_VTINHERIT },
1039 { BFD_RELOC_VTABLE_ENTRY, R_BFIN_GNU_VTENTRY },
0f64bb02
CM		 1040};
1041
1042
1043static void
1044bfin_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1045 arelent *cache_ptr,
1046 Elf_Internal_Rela *dst)
1047{
1048 unsigned int r_type;
1049
1050 r_type = ELF32_R_TYPE (dst->r_info);
1051
1052 if (r_type <= BFIN_RELOC_MAX)
1053 cache_ptr->howto = &bfin_howto_table [r_type];
1054
0f64bb02
CM		 1055 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1056 cache_ptr->howto = &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1057
1058 else
1059 cache_ptr->howto = (reloc_howto_type *) NULL;
0f64bb02 1060}
157090f7 1061
0f64bb02
CM		 1062/* Given a BFD reloc type, return the howto. */
1063static reloc_howto_type *
1064bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
1065 bfd_reloc_code_real_type code)
1066{
1067 unsigned int i;
0ba38529 1068 unsigned int r_type = (unsigned int) -1;
0f64bb02 1069
0ba38529 1070 for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); i--;)
0f64bb02
CM		 1071 if (bfin_reloc_map[i].bfd_reloc_val == code)
1072 r_type = bfin_reloc_map[i].bfin_reloc_val;
1073
0ba38529 1074 if (r_type <= BFIN_RELOC_MAX)
0f64bb02
CM		 1075 return &bfin_howto_table [r_type];
1076
0f64bb02
CM		 1077 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1078 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1079
1080 return (reloc_howto_type *) NULL;
157090f7 1081}
0f64bb02 1082
157090f7
AM		 1083static reloc_howto_type *
1084bfin_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1085 const char *r_name)
1086{
1087 unsigned int i;
1088
1089 for (i = 0;
1090 i < (sizeof (bfin_howto_table)
1091 / sizeof (bfin_howto_table[0]));
1092 i++)
1093 if (bfin_howto_table[i].name != NULL
1094 && strcasecmp (bfin_howto_table[i].name, r_name) == 0)
1095 return &bfin_howto_table[i];
1096
1097 for (i = 0;
1098 i < (sizeof (bfin_gnuext_howto_table)
1099 / sizeof (bfin_gnuext_howto_table[0]));
1100 i++)
1101 if (bfin_gnuext_howto_table[i].name != NULL
1102 && strcasecmp (bfin_gnuext_howto_table[i].name, r_name) == 0)
1103 return &bfin_gnuext_howto_table[i];
1104
1105 return NULL;
0f64bb02 1106}
157090f7 1107
0f64bb02
CM		 1108/* Given a bfin relocation type, return the howto. */
1109static reloc_howto_type *
1110bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
2c3fc389 1111 unsigned int r_type)
0f64bb02
CM		 1112{
1113 if (r_type <= BFIN_RELOC_MAX)
1114 return &bfin_howto_table [r_type];
1115
0f64bb02
CM		 1116 else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
1117 return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
1118
1119 return (reloc_howto_type *) NULL;
0f64bb02
CM		 1120}
1121
781303ce
MF		 1122/* Set by ld emulation if --code-in-l1. */
1123bfd_boolean elf32_bfin_code_in_l1 = 0;
1124
1125/* Set by ld emulation if --data-in-l1. */
1126bfd_boolean elf32_bfin_data_in_l1 = 0;
1127
1128static void
1129elf32_bfin_final_write_processing (bfd *abfd,
1130 bfd_boolean linker ATTRIBUTE_UNUSED)
1131{
1132 if (elf32_bfin_code_in_l1)
1133 elf_elfheader (abfd)->e_flags |= EF_BFIN_CODE_IN_L1;
1134 if (elf32_bfin_data_in_l1)
1135 elf_elfheader (abfd)->e_flags |= EF_BFIN_DATA_IN_L1;
1136}
1137
0f64bb02
CM		 1138/* Return TRUE if the name is a local label.
1139 bfin local labels begin with L$. */
1140static bfd_boolean
2c3fc389 1141bfin_is_local_label_name (bfd *abfd, const char *label)
0f64bb02
CM		 1142{
1143 if (label[0] == 'L' && label[1] == '$' )
1144 return TRUE;
1145
1146 return _bfd_elf_is_local_label_name (abfd, label);
1147}
c96a8570
BS		 1148\f
1149/* Look through the relocs for a section during the first phase, and
1150 allocate space in the global offset table or procedure linkage
1151 table. */
0f64bb02 1152
c96a8570
BS		 1153static bfd_boolean
1154bfin_check_relocs (bfd * abfd,
1155 struct bfd_link_info *info,
1156 asection *sec,
1157 const Elf_Internal_Rela *relocs)
48d502e1 1158{
c96a8570
BS		 1159 bfd *dynobj;
1160 Elf_Internal_Shdr *symtab_hdr;
1161 struct elf_link_hash_entry **sym_hashes;
1162 bfd_signed_vma *local_got_refcounts;
1163 const Elf_Internal_Rela *rel;
1164 const Elf_Internal_Rela *rel_end;
48d502e1 1165 asection *sgot;
c96a8570 1166 asection *srelgot;
2c3fc389 1167
0e1862bb 1168 if (bfd_link_relocatable (info))
c96a8570 1169 return TRUE;
48d502e1 1170
c96a8570
BS		 1171 dynobj = elf_hash_table (info)->dynobj;
1172 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1173 sym_hashes = elf_sym_hashes (abfd);
1174 local_got_refcounts = elf_local_got_refcounts (abfd);
48d502e1 1175
c96a8570
BS		 1176 sgot = NULL;
1177 srelgot = NULL;
48d502e1 1178
c96a8570
BS		 1179 rel_end = relocs + sec->reloc_count;
1180 for (rel = relocs; rel < rel_end; rel++)
48d502e1 1181 {
c96a8570
BS		 1182 unsigned long r_symndx;
1183 struct elf_link_hash_entry *h;
48d502e1 1184
c96a8570
BS		 1185 r_symndx = ELF32_R_SYM (rel->r_info);
1186 if (r_symndx < symtab_hdr->sh_info)
1187 h = NULL;
1188 else
81fbe831
AM		 1189 {
1190 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1191
1192 /* PR15323, ref flags aren't set for references in the same
1193 object. */
1194 h->root.non_ir_ref = 1;
1195 }
48d502e1 1196
c96a8570
BS		 1197 switch (ELF32_R_TYPE (rel->r_info))
1198 {
1199 /* This relocation describes the C++ object vtable hierarchy.
1200 Reconstruct it for later use during GC. */
1201 case R_BFIN_GNU_VTINHERIT:
1202 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1203 return FALSE;
1204 break;
48d502e1 1205
c96a8570
BS		 1206 /* This relocation describes which C++ vtable entries
1207 are actually used. Record for later use during GC. */
1208 case R_BFIN_GNU_VTENTRY:
1209 BFD_ASSERT (h != NULL);
1210 if (h != NULL
1211 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1212 return FALSE;
1213 break;
48d502e1 1214
cb88ce9f 1215 case R_BFIN_GOT:
c96a8570
BS		 1216 if (h != NULL
1217 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1218 break;
1219 /* Fall through. */
48d502e1 1220
c96a8570
BS		 1221 if (dynobj == NULL)
1222 {
1223 /* Create the .got section. */
1224 elf_hash_table (info)->dynobj = dynobj = abfd;
1225 if (!_bfd_elf_create_got_section (dynobj, info))
1226 return FALSE;
1227 }
48d502e1 1228
c96a8570
BS		 1229 if (sgot == NULL)
1230 {
3d4d4302 1231 sgot = bfd_get_linker_section (dynobj, ".got");
c96a8570
BS		 1232 BFD_ASSERT (sgot != NULL);
1233 }
48d502e1 1234
0e1862bb 1235 if (srelgot == NULL && (h != NULL || bfd_link_pic (info)))
c96a8570 1236 {
3d4d4302 1237 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
c96a8570
BS		 1238 if (srelgot == NULL)
1239 {
1240 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1241 | SEC_IN_MEMORY | SEC_LINKER_CREATED
1242 | SEC_READONLY);
3d4d4302
AM		 1243 srelgot = bfd_make_section_anyway_with_flags (dynobj,
1244 ".rela.got",
1245 flags);
c96a8570
BS		 1246 if (srelgot == NULL
1247 || !bfd_set_section_alignment (dynobj, srelgot, 2))
1248 return FALSE;
1249 }
1250 }
48d502e1 1251
c96a8570
BS		 1252 if (h != NULL)
1253 {
1254 if (h->got.refcount == 0)
1255 {
1256 /* Make sure this symbol is output as a dynamic symbol. */
1257 if (h->dynindx == -1 && !h->forced_local)
1258 {
1259 if (!bfd_elf_link_record_dynamic_symbol (info, h))
1260 return FALSE;
1261 }
48d502e1 1262
c96a8570
BS		 1263 /* Allocate space in the .got section. */
1264 sgot->size += 4;
1265 /* Allocate relocation space. */
1266 srelgot->size += sizeof (Elf32_External_Rela);
1267 }
1268 h->got.refcount++;
1269 }
1270 else
1271 {
1272 /* This is a global offset table entry for a local symbol. */
1273 if (local_got_refcounts == NULL)
1274 {
1275 bfd_size_type size;
48d502e1 1276
c96a8570
BS		 1277 size = symtab_hdr->sh_info;
1278 size *= sizeof (bfd_signed_vma);
1279 local_got_refcounts = ((bfd_signed_vma *)
1280 bfd_zalloc (abfd, size));
1281 if (local_got_refcounts == NULL)
1282 return FALSE;
1283 elf_local_got_refcounts (abfd) = local_got_refcounts;
1284 }
1285 if (local_got_refcounts[r_symndx] == 0)
1286 {
1287 sgot->size += 4;
0e1862bb 1288 if (bfd_link_pic (info))
c96a8570
BS		 1289 {
1290 /* If we are generating a shared object, we need to
1291 output a R_68K_RELATIVE reloc so that the dynamic
1292 linker can adjust this GOT entry. */
1293 srelgot->size += sizeof (Elf32_External_Rela);
1294 }
1295 }
1296 local_got_refcounts[r_symndx]++;
1297 }
1298 break;
48d502e1 1299
c96a8570
BS		 1300 default:
1301 break;
1302 }
1303 }
1304
1305 return TRUE;
48d502e1
BS		 1306}
1307
c96a8570 1308static enum elf_reloc_type_class
7e612e98
AM		 1309elf32_bfin_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1310 const asection *rel_sec ATTRIBUTE_UNUSED,
1311 const Elf_Internal_Rela * rela)
48d502e1 1312{
c96a8570
BS		 1313 switch ((int) ELF32_R_TYPE (rela->r_info))
1314 {
1315 default:
1316 return reloc_class_normal;
1317 }
1318}
1319\f
1320static bfd_reloc_status_type
1321bfin_final_link_relocate (Elf_Internal_Rela *rel, reloc_howto_type *howto,
1322 bfd *input_bfd, asection *input_section,
1323 bfd_byte *contents, bfd_vma address,
1324 bfd_vma value, bfd_vma addend)
1325{
1326 int r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 1327
cb88ce9f 1328 if (r_type == R_BFIN_PCREL24 || r_type == R_BFIN_PCREL24_JUMP_L)
c96a8570
BS		 1329 {
1330 bfd_reloc_status_type r = bfd_reloc_ok;
1331 bfd_vma x;
48d502e1 1332
c96a8570
BS		 1333 if (address > bfd_get_section_limit (input_bfd, input_section))
1334 return bfd_reloc_outofrange;
48d502e1 1335
c96a8570 1336 value += addend;
48d502e1 1337
c96a8570
BS		 1338 /* Perform usual pc-relative correction. */
1339 value -= input_section->output_section->vma + input_section->output_offset;
1340 value -= address;
48d502e1 1341
c96a8570
BS		 1342 /* We are getting reloc_entry->address 2 byte off from
1343 the start of instruction. Assuming absolute postion
1344 of the reloc data. But, following code had been written assuming
1345 reloc address is starting at begining of instruction.
1346 To compensate that I have increased the value of
1347 relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
48d502e1 1348
c96a8570
BS		 1349 value += 2;
1350 address -= 2;
48d502e1 1351
c96a8570
BS		 1352 if ((value & 0xFF000000) != 0
1353 && (value & 0xFF000000) != 0xFF000000)
1354 r = bfd_reloc_overflow;
48d502e1 1355
c96a8570 1356 value >>= 1;
48d502e1 1357
c96a8570
BS		 1358 x = bfd_get_16 (input_bfd, contents + address);
1359 x = (x & 0xff00) | ((value >> 16) & 0xff);
1360 bfd_put_16 (input_bfd, x, contents + address);
48d502e1 1361
c96a8570
BS		 1362 x = bfd_get_16 (input_bfd, contents + address + 2);
1363 x = value & 0xFFFF;
1364 bfd_put_16 (input_bfd, x, contents + address + 2);
1365 return r;
1366 }
48d502e1 1367
c96a8570
BS		 1368 return _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1369 rel->r_offset, value, addend);
48d502e1 1370
48d502e1
BS		 1371}
1372
c96a8570
BS		 1373static bfd_boolean
1374bfin_relocate_section (bfd * output_bfd,
1375 struct bfd_link_info *info,
1376 bfd * input_bfd,
1377 asection * input_section,
1378 bfd_byte * contents,
1379 Elf_Internal_Rela * relocs,
1380 Elf_Internal_Sym * local_syms,
1381 asection ** local_sections)
48d502e1 1382{
c96a8570
BS		 1383 bfd *dynobj;
1384 Elf_Internal_Shdr *symtab_hdr;
1385 struct elf_link_hash_entry **sym_hashes;
1386 bfd_vma *local_got_offsets;
1387 asection *sgot;
c96a8570
BS		 1388 Elf_Internal_Rela *rel;
1389 Elf_Internal_Rela *relend;
1390 int i = 0;
48d502e1 1391
c96a8570
BS		 1392 dynobj = elf_hash_table (info)->dynobj;
1393 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1394 sym_hashes = elf_sym_hashes (input_bfd);
1395 local_got_offsets = elf_local_got_offsets (input_bfd);
48d502e1 1396
c96a8570 1397 sgot = NULL;
48d502e1 1398
c96a8570
BS		 1399 rel = relocs;
1400 relend = relocs + input_section->reloc_count;
1401 for (; rel < relend; rel++, i++)
1402 {
1403 int r_type;
1404 reloc_howto_type *howto;
1405 unsigned long r_symndx;
1406 struct elf_link_hash_entry *h;
1407 Elf_Internal_Sym *sym;
1408 asection *sec;
1409 bfd_vma relocation = 0;
1410 bfd_boolean unresolved_reloc;
1411 bfd_reloc_status_type r;
1412 bfd_vma address;
48d502e1 1413
c96a8570
BS		 1414 r_type = ELF32_R_TYPE (rel->r_info);
1415 if (r_type < 0 || r_type >= 243)
1416 {
1417 bfd_set_error (bfd_error_bad_value);
1418 return FALSE;
1419 }
48d502e1 1420
c96a8570
BS		 1421 if (r_type == R_BFIN_GNU_VTENTRY
1422 || r_type == R_BFIN_GNU_VTINHERIT)
1423 continue;
48d502e1 1424
c96a8570
BS		 1425 howto = bfin_reloc_type_lookup (input_bfd, r_type);
1426 if (howto == NULL)
1427 {
1428 bfd_set_error (bfd_error_bad_value);
1429 return FALSE;
1430 }
1431 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1 1432
c96a8570
BS		 1433 h = NULL;
1434 sym = NULL;
1435 sec = NULL;
1436 unresolved_reloc = FALSE;
48d502e1 1437
c96a8570
BS		 1438 if (r_symndx < symtab_hdr->sh_info)
1439 {
1440 sym = local_syms + r_symndx;
1441 sec = local_sections[r_symndx];
1442 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1443 }
1444 else
1445 {
62d887d4 1446 bfd_boolean warned, ignored;
48d502e1 1447
c96a8570
BS		 1448 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1449 r_symndx, symtab_hdr, sym_hashes,
1450 h, sec, relocation,
62d887d4 1451 unresolved_reloc, warned, ignored);
c96a8570 1452 }
48d502e1 1453
dbaa2011 1454 if (sec != NULL && discarded_section (sec))
e4067dbb 1455 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 1456 rel, 1, relend, howto, 0, contents);
48d502e1 1457
0e1862bb 1458 if (bfd_link_relocatable (info))
c96a8570 1459 continue;
48d502e1 1460
c96a8570 1461 address = rel->r_offset;
48d502e1 1462
c96a8570
BS		 1463 /* Then, process normally. */
1464 switch (r_type)
1465 {
1466 case R_BFIN_GNU_VTINHERIT:
1467 case R_BFIN_GNU_VTENTRY:
1468 return bfd_reloc_ok;
48d502e1 1469
cb88ce9f 1470 case R_BFIN_GOT:
c96a8570
BS		 1471 /* Relocation is to the address of the entry for this symbol
1472 in the global offset table. */
1473 if (h != NULL
1474 && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
1475 goto do_default;
1476 /* Fall through. */
1477 /* Relocation is the offset of the entry for this symbol in
1478 the global offset table. */
48d502e1 1479
c96a8570
BS		 1480 {
1481 bfd_vma off;
48d502e1 1482
c96a8570
BS		 1483 if (dynobj == NULL)
1484 {
1485 /* Create the .got section. */
1486 elf_hash_table (info)->dynobj = dynobj = output_bfd;
1487 if (!_bfd_elf_create_got_section (dynobj, info))
1488 return FALSE;
1489 }
48d502e1 1490
c96a8570
BS		 1491 if (sgot == NULL)
1492 {
3d4d4302 1493 sgot = bfd_get_linker_section (dynobj, ".got");
c96a8570
BS		 1494 BFD_ASSERT (sgot != NULL);
1495 }
48d502e1 1496
c96a8570
BS		 1497 if (h != NULL)
1498 {
1499 bfd_boolean dyn;
48d502e1 1500
c96a8570
BS		 1501 off = h->got.offset;
1502 BFD_ASSERT (off != (bfd_vma) - 1);
1503 dyn = elf_hash_table (info)->dynamic_sections_created;
48d502e1 1504
0e1862bb
L		 1505 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
1506 bfd_link_pic (info),
1507 h)
1508 || (bfd_link_pic (info)
c96a8570
BS		 1509 && (info->symbolic
1510 || h->dynindx == -1
1511 || h->forced_local)
1512 && h->def_regular))
1513 {
1514 /* This is actually a static link, or it is a
1515 -Bsymbolic link and the symbol is defined
1516 locally, or the symbol was forced to be local
1517 because of a version file.. We must initialize
1518 this entry in the global offset table. Since
1519 the offset must always be a multiple of 4, we
1520 use the least significant bit to record whether
1521 we have initialized it already.
48d502e1 1522
c96a8570
BS		 1523 When doing a dynamic link, we create a .rela.got
1524 relocation entry to initialize the value. This
1525 is done in the finish_dynamic_symbol routine. */
1526 if ((off & 1) != 0)
1527 off &= ~1;
1528 else
1529 {
1530 bfd_put_32 (output_bfd, relocation,
1531 sgot->contents + off);
1532 h->got.offset |= 1;
1533 }
1534 }
1535 else
1536 unresolved_reloc = FALSE;
1537 }
1538 else
1539 {
1540 BFD_ASSERT (local_got_offsets != NULL);
1541 off = local_got_offsets[r_symndx];
1542 BFD_ASSERT (off != (bfd_vma) - 1);
48d502e1 1543
c96a8570
BS		 1544 /* The offset must always be a multiple of 4. We use
1545 the least significant bit to record whether we have
1546 already generated the necessary reloc. */
1547 if ((off & 1) != 0)
1548 off &= ~1;
1549 else
1550 {
1551 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
48d502e1 1552
0e1862bb 1553 if (bfd_link_pic (info))
c96a8570
BS		 1554 {
1555 asection *s;
1556 Elf_Internal_Rela outrel;
1557 bfd_byte *loc;
48d502e1 1558
3d4d4302 1559 s = bfd_get_linker_section (dynobj, ".rela.got");
c96a8570 1560 BFD_ASSERT (s != NULL);
48d502e1 1561
c96a8570
BS		 1562 outrel.r_offset = (sgot->output_section->vma
1563 + sgot->output_offset + off);
1564 outrel.r_info =
cb88ce9f 1565 ELF32_R_INFO (0, R_BFIN_PCREL24);
c96a8570
BS		 1566 outrel.r_addend = relocation;
1567 loc = s->contents;
1568 loc +=
1569 s->reloc_count++ * sizeof (Elf32_External_Rela);
1570 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1571 }
48d502e1 1572
c96a8570
BS		 1573 local_got_offsets[r_symndx] |= 1;
1574 }
1575 }
48d502e1 1576
c96a8570
BS		 1577 relocation = sgot->output_offset + off;
1578 rel->r_addend = 0;
1579 /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */
1580 relocation /= 4;
1581 }
1582 goto do_default;
1583
1584 default:
1585 do_default:
1586 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
1587 contents, address,
1588 relocation, rel->r_addend);
1589
1590 break;
48d502e1
BS		 1591 }
1592
c96a8570
BS		 1593 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
1594 because such sections are not SEC_ALLOC and thus ld.so will
1595 not process them. */
1596 if (unresolved_reloc
1d5316ab
AM		 1597 && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic)
1598 && _bfd_elf_section_offset (output_bfd, info, input_section,
1599 rel->r_offset) != (bfd_vma) -1)
48d502e1 1600 {
c96a8570
BS		 1601 (*_bfd_error_handler)
1602 (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"),
1603 input_bfd,
1604 input_section, (long) rel->r_offset, h->root.root.string);
1605 return FALSE;
48d502e1 1606 }
48d502e1 1607
c96a8570 1608 if (r != bfd_reloc_ok)
48d502e1 1609 {
c96a8570
BS		 1610 const char *name;
1611
1612 if (h != NULL)
1613 name = h->root.root.string;
1614 else
48d502e1 1615 {
c96a8570
BS		 1616 name = bfd_elf_string_from_elf_section (input_bfd,
1617 symtab_hdr->sh_link,
1618 sym->st_name);
1619 if (name == NULL)
1620 return FALSE;
1621 if (*name == '\0')
1622 name = bfd_section_name (input_bfd, sec);
48d502e1 1623 }
c96a8570
BS		 1624
1625 if (r == bfd_reloc_overflow)
1a72702b
AM		 1626 (*info->callbacks->reloc_overflow)
1627 (info, (h ? &h->root : NULL), name, howto->name,
1628 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
48d502e1
BS		 1629 else
1630 {
c96a8570
BS		 1631 (*_bfd_error_handler)
1632 (_("%B(%A+0x%lx): reloc against `%s': error %d"),
1633 input_bfd, input_section,
1634 (long) rel->r_offset, name, (int) r);
1635 return FALSE;
48d502e1 1636 }
48d502e1 1637 }
48d502e1
BS		 1638 }
1639
c96a8570
BS		 1640 return TRUE;
1641}
48d502e1 1642
c96a8570
BS		 1643static asection *
1644bfin_gc_mark_hook (asection * sec,
1645 struct bfd_link_info *info,
1646 Elf_Internal_Rela * rel,
1647 struct elf_link_hash_entry *h,
1648 Elf_Internal_Sym * sym)
1649{
1650 if (h != NULL)
1651 switch (ELF32_R_TYPE (rel->r_info))
1652 {
1653 case R_BFIN_GNU_VTINHERIT:
1654 case R_BFIN_GNU_VTENTRY:
1655 return NULL;
1656 }
48d502e1 1657
c96a8570
BS		 1658 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1659}
48d502e1 1660
c96a8570 1661/* Update the got entry reference counts for the section being removed. */
48d502e1 1662
c96a8570
BS		 1663static bfd_boolean
1664bfin_gc_sweep_hook (bfd * abfd,
1665 struct bfd_link_info *info,
1666 asection * sec,
1667 const Elf_Internal_Rela * relocs)
1668{
1669 Elf_Internal_Shdr *symtab_hdr;
1670 struct elf_link_hash_entry **sym_hashes;
1671 bfd_signed_vma *local_got_refcounts;
1672 const Elf_Internal_Rela *rel, *relend;
1673 bfd *dynobj;
1674 asection *sgot;
1675 asection *srelgot;
48d502e1 1676
c96a8570
BS		 1677 dynobj = elf_hash_table (info)->dynobj;
1678 if (dynobj == NULL)
0f64bb02
CM		 1679 return TRUE;
1680
0f64bb02
CM		 1681 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1682 sym_hashes = elf_sym_hashes (abfd);
1683 local_got_refcounts = elf_local_got_refcounts (abfd);
1684
3d4d4302
AM		 1685 sgot = bfd_get_linker_section (dynobj, ".got");
1686 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
0f64bb02 1687
c96a8570
BS		 1688 relend = relocs + sec->reloc_count;
1689 for (rel = relocs; rel < relend; rel++)
0f64bb02
CM		 1690 {
1691 unsigned long r_symndx;
1692 struct elf_link_hash_entry *h;
1693
0f64bb02
CM		 1694 switch (ELF32_R_TYPE (rel->r_info))
1695 {
cb88ce9f 1696 case R_BFIN_GOT:
c96a8570
BS		 1697 r_symndx = ELF32_R_SYM (rel->r_info);
1698 if (r_symndx >= symtab_hdr->sh_info)
0f64bb02 1699 {
c96a8570
BS		 1700 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1701 if (h->got.refcount > 0)
0f64bb02 1702 {
c96a8570
BS		 1703 --h->got.refcount;
1704 if (h->got.refcount == 0)
0f64bb02 1705 {
c96a8570
BS		 1706 /* We don't need the .got entry any more. */
1707 sgot->size -= 4;
1708 srelgot->size -= sizeof (Elf32_External_Rela);
0f64bb02 1709 }
0f64bb02 1710 }
0f64bb02 1711 }
c96a8570 1712 else if (local_got_refcounts != NULL)
0f64bb02 1713 {
c96a8570 1714 if (local_got_refcounts[r_symndx] > 0)
0f64bb02 1715 {
c96a8570
BS		 1716 --local_got_refcounts[r_symndx];
1717 if (local_got_refcounts[r_symndx] == 0)
0f64bb02 1718 {
c96a8570
BS		 1719 /* We don't need the .got entry any more. */
1720 sgot->size -= 4;
0e1862bb 1721 if (bfd_link_pic (info))
c96a8570 1722 srelgot->size -= sizeof (Elf32_External_Rela);
0f64bb02
CM		 1723 }
1724 }
0f64bb02
CM		 1725 }
1726 break;
0f64bb02
CM		 1727 default:
1728 break;
1729 }
1730 }
0f64bb02
CM		 1731 return TRUE;
1732}
c96a8570 1733\f
6d00b590
AM		 1734extern const bfd_target bfin_elf32_fdpic_vec;
1735#define IS_FDPIC(bfd) ((bfd)->xvec == &bfin_elf32_fdpic_vec)
0f64bb02 1736
4dfe6ac6
NC		 1737/* An extension of the elf hash table data structure,
1738 containing some additional Blackfin-specific data. */
c96a8570 1739struct bfinfdpic_elf_link_hash_table
c35e54f4 1740{
c96a8570 1741 struct elf_link_hash_table elf;
c35e54f4 1742
c96a8570
BS		 1743 /* A pointer to the .got section. */
1744 asection *sgot;
1745 /* A pointer to the .rel.got section. */
1746 asection *sgotrel;
1747 /* A pointer to the .rofixup section. */
1748 asection *sgotfixup;
1749 /* A pointer to the .plt section. */
1750 asection *splt;
1751 /* A pointer to the .rel.plt section. */
1752 asection *spltrel;
1753 /* GOT base offset. */
1754 bfd_vma got0;
1755 /* Location of the first non-lazy PLT entry, i.e., the number of
1756 bytes taken by lazy PLT entries. */
1757 bfd_vma plt0;
1758 /* A hash table holding information about which symbols were
1759 referenced with which PIC-related relocations. */
1760 struct htab *relocs_info;
6a9adeca
BS		 1761 /* Summary reloc information collected by
1762 _bfinfdpic_count_got_plt_entries. */
1763 struct _bfinfdpic_dynamic_got_info *g;
c96a8570 1764};
c35e54f4 1765
c96a8570 1766/* Get the Blackfin ELF linker hash table from a link_info structure. */
c35e54f4 1767
c96a8570 1768#define bfinfdpic_hash_table(info) \
4dfe6ac6
NC		 1769 (elf_hash_table_id ((struct elf_link_hash_table *) ((info)->hash)) \
1770 == BFIN_ELF_DATA ? ((struct bfinfdpic_elf_link_hash_table *) ((info)->hash)) : NULL)
c35e54f4 1771
c96a8570
BS		 1772#define bfinfdpic_got_section(info) \
1773 (bfinfdpic_hash_table (info)->sgot)
1774#define bfinfdpic_gotrel_section(info) \
1775 (bfinfdpic_hash_table (info)->sgotrel)
1776#define bfinfdpic_gotfixup_section(info) \
1777 (bfinfdpic_hash_table (info)->sgotfixup)
1778#define bfinfdpic_plt_section(info) \
1779 (bfinfdpic_hash_table (info)->splt)
1780#define bfinfdpic_pltrel_section(info) \
1781 (bfinfdpic_hash_table (info)->spltrel)
1782#define bfinfdpic_relocs_info(info) \
1783 (bfinfdpic_hash_table (info)->relocs_info)
1784#define bfinfdpic_got_initial_offset(info) \
1785 (bfinfdpic_hash_table (info)->got0)
1786#define bfinfdpic_plt_initial_offset(info) \
1787 (bfinfdpic_hash_table (info)->plt0)
6a9adeca
BS		 1788#define bfinfdpic_dynamic_got_plt_info(info) \
1789 (bfinfdpic_hash_table (info)->g)
c35e54f4 1790
c96a8570
BS		 1791/* The name of the dynamic interpreter. This is put in the .interp
1792 section. */
c35e54f4 1793
c96a8570 1794#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
c35e54f4 1795
c96a8570 1796#define DEFAULT_STACK_SIZE 0x20000
c35e54f4 1797
c96a8570
BS		 1798/* This structure is used to collect the number of entries present in
1799 each addressable range of the got. */
1800struct _bfinfdpic_dynamic_got_info
1801{
1802 /* Several bits of information about the current link. */
1803 struct bfd_link_info *info;
1804 /* Total size needed for GOT entries within the 18- or 32-bit
1805 ranges. */
1806 bfd_vma got17m4, gothilo;
1807 /* Total size needed for function descriptor entries within the 18-
1808 or 32-bit ranges. */
1809 bfd_vma fd17m4, fdhilo;
1810 /* Total size needed function descriptor entries referenced in PLT
1811 entries, that would be profitable to place in offsets close to
1812 the PIC register. */
1813 bfd_vma fdplt;
1814 /* Total size needed by lazy PLT entries. */
1815 bfd_vma lzplt;
1816 /* Number of relocations carried over from input object files. */
1817 unsigned long relocs;
1818 /* Number of fixups introduced by relocations in input object files. */
1819 unsigned long fixups;
1820};
c35e54f4 1821
c96a8570 1822/* Create a Blackfin ELF linker hash table. */
c35e54f4 1823
c96a8570
BS		 1824static struct bfd_link_hash_table *
1825bfinfdpic_elf_link_hash_table_create (bfd *abfd)
1826{
1827 struct bfinfdpic_elf_link_hash_table *ret;
1828 bfd_size_type amt = sizeof (struct bfinfdpic_elf_link_hash_table);
c35e54f4 1829
22cdc249 1830 ret = bfd_zmalloc (amt);
c96a8570
BS		 1831 if (ret == NULL)
1832 return NULL;
c35e54f4 1833
c96a8570
BS		 1834 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1835 _bfd_elf_link_hash_newfunc,
4dfe6ac6
NC		 1836 sizeof (struct elf_link_hash_entry),
1837 BFIN_ELF_DATA))
c96a8570
BS		 1838 {
1839 free (ret);
1840 return NULL;
1841 }
c35e54f4 1842
c96a8570
BS		 1843 return &ret->elf.root;
1844}
48d502e1 1845
c96a8570
BS		 1846/* Decide whether a reference to a symbol can be resolved locally or
1847 not. If the symbol is protected, we want the local address, but
1848 its function descriptor must be assigned by the dynamic linker. */
1849#define BFINFDPIC_SYM_LOCAL(INFO, H) \
1850 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1851 || ! elf_hash_table (INFO)->dynamic_sections_created)
1852#define BFINFDPIC_FUNCDESC_LOCAL(INFO, H) \
1853 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
48d502e1 1854
c96a8570
BS		 1855/* This structure collects information on what kind of GOT, PLT or
1856 function descriptors are required by relocations that reference a
1857 certain symbol. */
1858struct bfinfdpic_relocs_info
1859{
1860 /* The index of the symbol, as stored in the relocation r_info, if
1861 we have a local symbol; -1 otherwise. */
1862 long symndx;
1863 union
1864 {
1865 /* The input bfd in which the symbol is defined, if it's a local
1866 symbol. */
1867 bfd *abfd;
1868 /* If symndx == -1, the hash table entry corresponding to a global
1869 symbol (even if it turns out to bind locally, in which case it
1870 should ideally be replaced with section's symndx + addend). */
1871 struct elf_link_hash_entry *h;
1872 } d;
1873 /* The addend of the relocation that references the symbol. */
1874 bfd_vma addend;
48d502e1 1875
c96a8570
BS		 1876 /* The fields above are used to identify an entry. The fields below
1877 contain information on how an entry is used and, later on, which
1878 locations it was assigned. */
1879 /* The following 2 fields record whether the symbol+addend above was
1880 ever referenced with a GOT relocation. The 17M4 suffix indicates a
1881 GOT17M4 relocation; hilo is used for GOTLO/GOTHI pairs. */
1882 unsigned got17m4;
1883 unsigned gothilo;
1884 /* Whether a FUNCDESC relocation references symbol+addend. */
1885 unsigned fd;
1886 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1887 unsigned fdgot17m4;
1888 unsigned fdgothilo;
1889 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1890 unsigned fdgoff17m4;
1891 unsigned fdgoffhilo;
1892 /* Whether symbol+addend is referenced with GOTOFF17M4, GOTOFFLO or
1893 GOTOFFHI relocations. The addend doesn't really matter, since we
1894 envision that this will only be used to check whether the symbol
1895 is mapped to the same segment as the got. */
1896 unsigned gotoff;
1897 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1898 unsigned call;
1899 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1900 relocation. */
1901 unsigned sym;
1902 /* Whether we need a PLT entry for a symbol. Should be implied by
1903 something like:
1904 (call && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)) */
1905 unsigned plt:1;
1906 /* Whether a function descriptor should be created in this link unit
1907 for symbol+addend. Should be implied by something like:
1908 (plt || fdgotoff17m4 || fdgotofflohi
1909 || ((fd || fdgot17m4 || fdgothilo)
1910 && (symndx != -1 || BFINFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1911 unsigned privfd:1;
1912 /* Whether a lazy PLT entry is needed for this symbol+addend.
1913 Should be implied by something like:
1914 (privfd && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)
1915 && ! (info->flags & DF_BIND_NOW)) */
1916 unsigned lazyplt:1;
1917 /* Whether we've already emitted GOT relocations and PLT entries as
1918 needed for this symbol. */
1919 unsigned done:1;
48d502e1 1920
cb88ce9f 1921 /* The number of R_BFIN_BYTE4_DATA, R_BFIN_FUNCDESC and R_BFIN_FUNCDESC_VALUE
c96a8570
BS		 1922 relocations referencing the symbol. */
1923 unsigned relocs32, relocsfd, relocsfdv;
48d502e1 1924
c96a8570
BS		 1925 /* The number of .rofixups entries and dynamic relocations allocated
1926 for this symbol, minus any that might have already been used. */
1927 unsigned fixups, dynrelocs;
48d502e1 1928
c96a8570
BS		 1929 /* The offsets of the GOT entries assigned to symbol+addend, to the
1930 function descriptor's address, and to a function descriptor,
1931 respectively. Should be zero if unassigned. The offsets are
1932 counted from the value that will be assigned to the PIC register,
1933 not from the beginning of the .got section. */
1934 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1935 /* The offsets of the PLT entries assigned to symbol+addend,
1936 non-lazy and lazy, respectively. If unassigned, should be
1937 (bfd_vma)-1. */
1938 bfd_vma plt_entry, lzplt_entry;
1939};
48d502e1 1940
c96a8570
BS		 1941/* Compute a hash with the key fields of an bfinfdpic_relocs_info entry. */
1942static hashval_t
1943bfinfdpic_relocs_info_hash (const void *entry_)
1944{
1945 const struct bfinfdpic_relocs_info *entry = entry_;
48d502e1 1946
c96a8570
BS		 1947 return (entry->symndx == -1
1948 ? (long) entry->d.h->root.root.hash
1949 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1950}
f4707595 1951
c96a8570
BS		 1952/* Test whether the key fields of two bfinfdpic_relocs_info entries are
1953 identical. */
1954static int
1955bfinfdpic_relocs_info_eq (const void *entry1, const void *entry2)
0f64bb02 1956{
c96a8570
BS		 1957 const struct bfinfdpic_relocs_info *e1 = entry1;
1958 const struct bfinfdpic_relocs_info *e2 = entry2;
0f64bb02 1959
c96a8570
BS		 1960 return e1->symndx == e2->symndx && e1->addend == e2->addend
1961 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1962}
48d502e1 1963
c96a8570
BS		 1964/* Find or create an entry in a hash table HT that matches the key
1965 fields of the given ENTRY. If it's not found, memory for a new
1966 entry is allocated in ABFD's obstack. */
1967static struct bfinfdpic_relocs_info *
1968bfinfdpic_relocs_info_find (struct htab *ht,
1969 bfd *abfd,
1970 const struct bfinfdpic_relocs_info *entry,
1971 enum insert_option insert)
1972{
83fd9437
JZ		 1973 struct bfinfdpic_relocs_info **loc;
1974
1975 if (!ht)
1976 return NULL;
1977
1978 loc = (struct bfinfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
0f64bb02 1979
c96a8570
BS		 1980 if (! loc)
1981 return NULL;
0f64bb02 1982
c96a8570
BS		 1983 if (*loc)
1984 return *loc;
0f64bb02 1985
c96a8570 1986 *loc = bfd_zalloc (abfd, sizeof (**loc));
0f64bb02 1987
c96a8570
BS		 1988 if (! *loc)
1989 return *loc;
0f64bb02 1990
c96a8570
BS		 1991 (*loc)->symndx = entry->symndx;
1992 (*loc)->d = entry->d;
1993 (*loc)->addend = entry->addend;
1994 (*loc)->plt_entry = (bfd_vma)-1;
1995 (*loc)->lzplt_entry = (bfd_vma)-1;
0f64bb02 1996
c96a8570
BS		 1997 return *loc;
1998}
48d502e1 1999
c96a8570
BS		 2000/* Obtain the address of the entry in HT associated with H's symbol +
2001 addend, creating a new entry if none existed. ABFD is only used
2002 for memory allocation purposes. */
2003inline static struct bfinfdpic_relocs_info *
2004bfinfdpic_relocs_info_for_global (struct htab *ht,
2c3fc389
NC		 2005 bfd *abfd,
2006 struct elf_link_hash_entry *h,
2007 bfd_vma addend,
2008 enum insert_option insert)
c96a8570
BS		 2009{
2010 struct bfinfdpic_relocs_info entry;
0f64bb02 2011
c96a8570
BS		 2012 entry.symndx = -1;
2013 entry.d.h = h;
2014 entry.addend = addend;
f4707595 2015
c96a8570
BS		 2016 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
2017}
48d502e1 2018
c96a8570
BS		 2019/* Obtain the address of the entry in HT associated with the SYMNDXth
2020 local symbol of the input bfd ABFD, plus the addend, creating a new
2021 entry if none existed. */
2022inline static struct bfinfdpic_relocs_info *
2023bfinfdpic_relocs_info_for_local (struct htab *ht,
2024 bfd *abfd,
2025 long symndx,
2026 bfd_vma addend,
2027 enum insert_option insert)
2028{
2029 struct bfinfdpic_relocs_info entry;
ab96bf03 2030
c96a8570
BS		 2031 entry.symndx = symndx;
2032 entry.d.abfd = abfd;
2033 entry.addend = addend;
48d502e1 2034
c96a8570
BS		 2035 return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
2036}
48d502e1 2037
c96a8570
BS		 2038/* Merge fields set by check_relocs() of two entries that end up being
2039 mapped to the same (presumably global) symbol. */
0f64bb02 2040
c96a8570
BS		 2041inline static void
2042bfinfdpic_pic_merge_early_relocs_info (struct bfinfdpic_relocs_info *e2,
2c3fc389 2043 struct bfinfdpic_relocs_info const *e1)
c96a8570
BS		 2044{
2045 e2->got17m4 |= e1->got17m4;
2046 e2->gothilo |= e1->gothilo;
2047 e2->fd |= e1->fd;
2048 e2->fdgot17m4 |= e1->fdgot17m4;
2049 e2->fdgothilo |= e1->fdgothilo;
2050 e2->fdgoff17m4 |= e1->fdgoff17m4;
2051 e2->fdgoffhilo |= e1->fdgoffhilo;
2052 e2->gotoff |= e1->gotoff;
2053 e2->call |= e1->call;
2054 e2->sym |= e1->sym;
2055}
48d502e1 2056
c96a8570
BS		 2057/* Every block of 65535 lazy PLT entries shares a single call to the
2058 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
2059 32767, counting from 0). All other lazy PLT entries branch to it
2060 in a single instruction. */
48d502e1 2061
c96a8570
BS		 2062#define LZPLT_RESOLVER_EXTRA 10
2063#define LZPLT_NORMAL_SIZE 6
2064#define LZPLT_ENTRIES 1362
48d502e1 2065
c96a8570
BS		 2066#define BFINFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) LZPLT_NORMAL_SIZE * LZPLT_ENTRIES + LZPLT_RESOLVER_EXTRA)
2067#define BFINFDPIC_LZPLT_RESOLV_LOC (LZPLT_NORMAL_SIZE * LZPLT_ENTRIES / 2)
48d502e1 2068
c96a8570 2069/* Add a dynamic relocation to the SRELOC section. */
48d502e1 2070
c96a8570
BS		 2071inline static bfd_vma
2072_bfinfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
2073 int reloc_type, long dynindx, bfd_vma addend,
2074 struct bfinfdpic_relocs_info *entry)
2075{
2076 Elf_Internal_Rela outrel;
2077 bfd_vma reloc_offset;
0f64bb02 2078
c96a8570
BS		 2079 outrel.r_offset = offset;
2080 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
2081 outrel.r_addend = addend;
48d502e1 2082
c96a8570
BS		 2083 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
2084 BFD_ASSERT (reloc_offset < sreloc->size);
2085 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
2086 sreloc->contents + reloc_offset);
2087 sreloc->reloc_count++;
48d502e1 2088
c96a8570
BS		 2089 /* If the entry's index is zero, this relocation was probably to a
2090 linkonce section that got discarded. We reserved a dynamic
2091 relocation, but it was for another entry than the one we got at
2092 the time of emitting the relocation. Unfortunately there's no
2093 simple way for us to catch this situation, since the relocation
2094 is cleared right before calling relocate_section, at which point
2095 we no longer know what the relocation used to point to. */
2096 if (entry->symndx)
2097 {
2098 BFD_ASSERT (entry->dynrelocs > 0);
2099 entry->dynrelocs--;
2100 }
48d502e1 2101
c96a8570
BS		 2102 return reloc_offset;
2103}
0f64bb02 2104
c96a8570 2105/* Add a fixup to the ROFIXUP section. */
48d502e1 2106
c96a8570
BS		 2107static bfd_vma
2108_bfinfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
2c3fc389 2109 struct bfinfdpic_relocs_info *entry)
c96a8570
BS		 2110{
2111 bfd_vma fixup_offset;
8aafe8b4 2112
c96a8570
BS		 2113 if (rofixup->flags & SEC_EXCLUDE)
2114 return -1;
0f64bb02 2115
c96a8570
BS		 2116 fixup_offset = rofixup->reloc_count * 4;
2117 if (rofixup->contents)
2118 {
2119 BFD_ASSERT (fixup_offset < rofixup->size);
2120 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
2121 }
2122 rofixup->reloc_count++;
0f64bb02 2123
c96a8570
BS		 2124 if (entry && entry->symndx)
2125 {
2126 /* See discussion about symndx == 0 in _bfinfdpic_add_dyn_reloc
2127 above. */
2128 BFD_ASSERT (entry->fixups > 0);
2129 entry->fixups--;
2130 }
f4707595 2131
c96a8570
BS		 2132 return fixup_offset;
2133}
0f64bb02 2134
c96a8570
BS		 2135/* Find the segment number in which OSEC, and output section, is
2136 located. */
ca889129 2137
c96a8570
BS		 2138static unsigned
2139_bfinfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
2140{
2141 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
0f64bb02 2142
c96a8570
BS		 2143 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
2144}
2145
2146inline static bfd_boolean
2147_bfinfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
2148{
2149 unsigned seg = _bfinfdpic_osec_to_segment (output_bfd, osec);
2150
2151 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
2152}
2153
2154/* Generate relocations for GOT entries, function descriptors, and
2155 code for PLT and lazy PLT entries. */
2156
2157inline static bfd_boolean
2158_bfinfdpic_emit_got_relocs_plt_entries (struct bfinfdpic_relocs_info *entry,
2159 bfd *output_bfd,
2160 struct bfd_link_info *info,
2161 asection *sec,
2162 Elf_Internal_Sym *sym,
2163 bfd_vma addend)
c96a8570 2164{
2c3fc389 2165 bfd_vma fd_lazy_rel_offset = (bfd_vma) -1;
c96a8570
BS		 2166 int dynindx = -1;
2167
2168 if (entry->done)
2169 return TRUE;
2170 entry->done = 1;
2171
2172 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry)
2173 {
2174 /* If the symbol is dynamic, consider it for dynamic
2175 relocations, otherwise decay to section + offset. */
2176 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
2177 dynindx = entry->d.h->dynindx;
2178 else
2179 {
6a9adeca
BS		 2180 if (sec
2181 && sec->output_section
c96a8570
BS		 2182 && ! bfd_is_abs_section (sec->output_section)
2183 && ! bfd_is_und_section (sec->output_section))
2184 dynindx = elf_section_data (sec->output_section)->dynindx;
2185 else
2186 dynindx = 0;
2187 }
2188 }
2189
2190 /* Generate relocation for GOT entry pointing to the symbol. */
2191 if (entry->got_entry)
2192 {
2193 int idx = dynindx;
2194 bfd_vma ad = addend;
2195
2196 /* If the symbol is dynamic but binds locally, use
2197 section+offset. */
2198 if (sec && (entry->symndx != -1
2199 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2200 {
2201 if (entry->symndx == -1)
2202 ad += entry->d.h->root.u.def.value;
2203 else
2204 ad += sym->st_value;
2205 ad += sec->output_offset;
2206 if (sec->output_section && elf_section_data (sec->output_section))
2207 idx = elf_section_data (sec->output_section)->dynindx;
2208 else
2209 idx = 0;
2210 }
2211
2212 /* If we're linking an executable at a fixed address, we can
2213 omit the dynamic relocation as long as the symbol is local to
2214 this module. */
3cbc1e5e 2215 if (bfd_link_pde (info)
c96a8570
BS		 2216 && (entry->symndx != -1
2217 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2218 {
2219 if (sec)
2220 ad += sec->output_section->vma;
2221 if (entry->symndx != -1
2222 || entry->d.h->root.type != bfd_link_hash_undefweak)
2223 _bfinfdpic_add_rofixup (output_bfd,
2224 bfinfdpic_gotfixup_section (info),
2225 bfinfdpic_got_section (info)->output_section
2226 ->vma
2227 + bfinfdpic_got_section (info)->output_offset
2228 + bfinfdpic_got_initial_offset (info)
2229 + entry->got_entry, entry);
2230 }
2231 else
2232 _bfinfdpic_add_dyn_reloc (output_bfd, bfinfdpic_gotrel_section (info),
2233 _bfd_elf_section_offset
2234 (output_bfd, info,
2235 bfinfdpic_got_section (info),
2236 bfinfdpic_got_initial_offset (info)
2237 + entry->got_entry)
2238 + bfinfdpic_got_section (info)
2239 ->output_section->vma
2240 + bfinfdpic_got_section (info)->output_offset,
cb88ce9f 2241 R_BFIN_BYTE4_DATA, idx, ad, entry);
c96a8570
BS		 2242
2243 bfd_put_32 (output_bfd, ad,
2244 bfinfdpic_got_section (info)->contents
2245 + bfinfdpic_got_initial_offset (info)
2246 + entry->got_entry);
2247 }
2248
2249 /* Generate relocation for GOT entry pointing to a canonical
2250 function descriptor. */
2251 if (entry->fdgot_entry)
2252 {
2253 int reloc, idx;
2254 bfd_vma ad = 0;
2255
2256 if (! (entry->symndx == -1
2257 && entry->d.h->root.type == bfd_link_hash_undefweak
2258 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2259 {
2260 /* If the symbol is dynamic and there may be dynamic symbol
2261 resolution because we are, or are linked with, a shared
2262 library, emit a FUNCDESC relocation such that the dynamic
2263 linker will allocate the function descriptor. If the
2264 symbol needs a non-local function descriptor but binds
2265 locally (e.g., its visibility is protected, emit a
2266 dynamic relocation decayed to section+offset. */
2267 if (entry->symndx == -1
2268 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
2269 && BFINFDPIC_SYM_LOCAL (info, entry->d.h)
3cbc1e5e 2270 && !bfd_link_pde (info))
c96a8570
BS		 2271 {
2272 reloc = R_BFIN_FUNCDESC;
2273 idx = elf_section_data (entry->d.h->root.u.def.section
2274 ->output_section)->dynindx;
2275 ad = entry->d.h->root.u.def.section->output_offset
2276 + entry->d.h->root.u.def.value;
2277 }
2278 else if (entry->symndx == -1
2279 && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
2280 {
2281 reloc = R_BFIN_FUNCDESC;
2282 idx = dynindx;
2283 ad = addend;
2284 if (ad)
2285 return FALSE;
2286 }
2287 else
2288 {
2289 /* Otherwise, we know we have a private function descriptor,
2290 so reference it directly. */
2291 if (elf_hash_table (info)->dynamic_sections_created)
2292 BFD_ASSERT (entry->privfd);
cb88ce9f 2293 reloc = R_BFIN_BYTE4_DATA;
c96a8570
BS		 2294 idx = elf_section_data (bfinfdpic_got_section (info)
2295 ->output_section)->dynindx;
2296 ad = bfinfdpic_got_section (info)->output_offset
2297 + bfinfdpic_got_initial_offset (info) + entry->fd_entry;
2298 }
2299
2300 /* If there is room for dynamic symbol resolution, emit the
2301 dynamic relocation. However, if we're linking an
2302 executable at a fixed location, we won't have emitted a
2303 dynamic symbol entry for the got section, so idx will be
2304 zero, which means we can and should compute the address
2305 of the private descriptor ourselves. */
3cbc1e5e 2306 if (bfd_link_pde (info)
c96a8570
BS		 2307 && (entry->symndx != -1
2308 || BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
2309 {
2310 ad += bfinfdpic_got_section (info)->output_section->vma;
2311 _bfinfdpic_add_rofixup (output_bfd,
2312 bfinfdpic_gotfixup_section (info),
2313 bfinfdpic_got_section (info)
2314 ->output_section->vma
2315 + bfinfdpic_got_section (info)
2316 ->output_offset
2317 + bfinfdpic_got_initial_offset (info)
2318 + entry->fdgot_entry, entry);
2319 }
2320 else
2321 _bfinfdpic_add_dyn_reloc (output_bfd,
2322 bfinfdpic_gotrel_section (info),
2323 _bfd_elf_section_offset
2324 (output_bfd, info,
2325 bfinfdpic_got_section (info),
2326 bfinfdpic_got_initial_offset (info)
2327 + entry->fdgot_entry)
2328 + bfinfdpic_got_section (info)
2329 ->output_section->vma
2330 + bfinfdpic_got_section (info)
2331 ->output_offset,
2332 reloc, idx, ad, entry);
2333 }
f4707595 2334
c96a8570
BS		 2335 bfd_put_32 (output_bfd, ad,
2336 bfinfdpic_got_section (info)->contents
2337 + bfinfdpic_got_initial_offset (info)
2338 + entry->fdgot_entry);
2339 }
2340
2341 /* Generate relocation to fill in a private function descriptor in
2342 the GOT. */
2343 if (entry->fd_entry)
2344 {
2345 int idx = dynindx;
2346 bfd_vma ad = addend;
2347 bfd_vma ofst;
2348 long lowword, highword;
2349
2350 /* If the symbol is dynamic but binds locally, use
2351 section+offset. */
2352 if (sec && (entry->symndx != -1
2353 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
2354 {
2355 if (entry->symndx == -1)
2356 ad += entry->d.h->root.u.def.value;
2357 else
2358 ad += sym->st_value;
2359 ad += sec->output_offset;
2360 if (sec->output_section && elf_section_data (sec->output_section))
2361 idx = elf_section_data (sec->output_section)->dynindx;
2362 else
2363 idx = 0;
48d502e1 2364 }
f4707595 2365
c96a8570
BS		 2366 /* If we're linking an executable at a fixed address, we can
2367 omit the dynamic relocation as long as the symbol is local to
2368 this module. */
3cbc1e5e 2369 if (bfd_link_pde (info)
c96a8570 2370 && (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
48d502e1 2371 {
c96a8570
BS		 2372 if (sec)
2373 ad += sec->output_section->vma;
2374 ofst = 0;
2375 if (entry->symndx != -1
2376 || entry->d.h->root.type != bfd_link_hash_undefweak)
2377 {
2378 _bfinfdpic_add_rofixup (output_bfd,
2379 bfinfdpic_gotfixup_section (info),
2380 bfinfdpic_got_section (info)
2381 ->output_section->vma
2382 + bfinfdpic_got_section (info)
2383 ->output_offset
2384 + bfinfdpic_got_initial_offset (info)
2385 + entry->fd_entry, entry);
2386 _bfinfdpic_add_rofixup (output_bfd,
2387 bfinfdpic_gotfixup_section (info),
2388 bfinfdpic_got_section (info)
2389 ->output_section->vma
2390 + bfinfdpic_got_section (info)
2391 ->output_offset
2392 + bfinfdpic_got_initial_offset (info)
2393 + entry->fd_entry + 4, entry);
2394 }
2395 }
2396 else
2397 {
2398 ofst
2399 = _bfinfdpic_add_dyn_reloc (output_bfd,
2400 entry->lazyplt
2401 ? bfinfdpic_pltrel_section (info)
2402 : bfinfdpic_gotrel_section (info),
2403 _bfd_elf_section_offset
2404 (output_bfd, info,
2405 bfinfdpic_got_section (info),
2406 bfinfdpic_got_initial_offset (info)
2407 + entry->fd_entry)
2408 + bfinfdpic_got_section (info)
2409 ->output_section->vma
2410 + bfinfdpic_got_section (info)
2411 ->output_offset,
2412 R_BFIN_FUNCDESC_VALUE, idx, ad, entry);
48d502e1 2413 }
f4707595 2414
c96a8570
BS		 2415 /* If we've omitted the dynamic relocation, just emit the fixed
2416 addresses of the symbol and of the local GOT base offset. */
3cbc1e5e 2417 if (bfd_link_pde (info)
0e1862bb
L		 2418 && sec
2419 && sec->output_section)
48d502e1 2420 {
c96a8570
BS		 2421 lowword = ad;
2422 highword = bfinfdpic_got_section (info)->output_section->vma
2423 + bfinfdpic_got_section (info)->output_offset
2424 + bfinfdpic_got_initial_offset (info);
2425 }
2426 else if (entry->lazyplt)
2427 {
2428 if (ad)
2429 return FALSE;
f4707595 2430
c96a8570 2431 fd_lazy_rel_offset = ofst;
f4707595 2432
c96a8570
BS		 2433 /* A function descriptor used for lazy or local resolving is
2434 initialized such that its high word contains the output
2435 section index in which the PLT entries are located, and
2436 the low word contains the address of the lazy PLT entry
2437 entry point, that must be within the memory region
2438 assigned to that section. */
2439 lowword = entry->lzplt_entry + 4
2440 + bfinfdpic_plt_section (info)->output_offset
2441 + bfinfdpic_plt_section (info)->output_section->vma;
2442 highword = _bfinfdpic_osec_to_segment
2443 (output_bfd, bfinfdpic_plt_section (info)->output_section);
2444 }
2445 else
2446 {
2447 /* A function descriptor for a local function gets the index
2448 of the section. For a non-local function, it's
2449 disregarded. */
2450 lowword = ad;
6a9adeca
BS		 2451 if (sec == NULL
2452 || (entry->symndx == -1 && entry->d.h->dynindx != -1
2453 && entry->d.h->dynindx == idx))
c96a8570
BS		 2454 highword = 0;
2455 else
2456 highword = _bfinfdpic_osec_to_segment
2457 (output_bfd, sec->output_section);
48d502e1 2458 }
f4707595 2459
c96a8570
BS		 2460 bfd_put_32 (output_bfd, lowword,
2461 bfinfdpic_got_section (info)->contents
2462 + bfinfdpic_got_initial_offset (info)
2463 + entry->fd_entry);
2464 bfd_put_32 (output_bfd, highword,
2465 bfinfdpic_got_section (info)->contents
2466 + bfinfdpic_got_initial_offset (info)
2467 + entry->fd_entry + 4);
2468 }
2469
2470 /* Generate code for the PLT entry. */
2471 if (entry->plt_entry != (bfd_vma) -1)
2472 {
2473 bfd_byte *plt_code = bfinfdpic_plt_section (info)->contents
2474 + entry->plt_entry;
2475
2476 BFD_ASSERT (entry->fd_entry);
2477
2478 /* Figure out what kind of PLT entry we need, depending on the
2479 location of the function descriptor within the GOT. */
2480 if (entry->fd_entry >= -(1 << (18 - 1))
2481 && entry->fd_entry + 4 < (1 << (18 - 1)))
48d502e1 2482 {
c96a8570
BS		 2483 /* P1 = [P3 + fd_entry]; P3 = [P3 + fd_entry + 4] */
2484 bfd_put_32 (output_bfd,
2485 0xe519 | ((entry->fd_entry << 14) & 0xFFFF0000),
2486 plt_code);
2487 bfd_put_32 (output_bfd,
2488 0xe51b | (((entry->fd_entry + 4) << 14) & 0xFFFF0000),
2489 plt_code + 4);
2490 plt_code += 8;
2491 }
2492 else
2493 {
2494 /* P1.L = fd_entry; P1.H = fd_entry;
2495 P3 = P3 + P1;
2496 P1 = [P3];
2497 P3 = [P3 + 4]; */
2498 bfd_put_32 (output_bfd,
2499 0xe109 | (entry->fd_entry << 16),
2500 plt_code);
2501 bfd_put_32 (output_bfd,
2502 0xe149 | (entry->fd_entry & 0xFFFF0000),
2503 plt_code + 4);
2504 bfd_put_16 (output_bfd, 0x5ad9, plt_code + 8);
2505 bfd_put_16 (output_bfd, 0x9159, plt_code + 10);
2506 bfd_put_16 (output_bfd, 0xac5b, plt_code + 12);
2507 plt_code += 14;
2508 }
2509 /* JUMP (P1) */
2510 bfd_put_16 (output_bfd, 0x0051, plt_code);
2511 }
f4707595 2512
c96a8570
BS		 2513 /* Generate code for the lazy PLT entry. */
2514 if (entry->lzplt_entry != (bfd_vma) -1)
2515 {
2516 bfd_byte *lzplt_code = bfinfdpic_plt_section (info)->contents
2517 + entry->lzplt_entry;
2518 bfd_vma resolverStub_addr;
0f64bb02 2519
c96a8570
BS		 2520 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
2521 lzplt_code += 4;
0f64bb02 2522
c96a8570
BS		 2523 resolverStub_addr = entry->lzplt_entry / BFINFDPIC_LZPLT_BLOCK_SIZE
2524 * BFINFDPIC_LZPLT_BLOCK_SIZE + BFINFDPIC_LZPLT_RESOLV_LOC;
2525 if (resolverStub_addr >= bfinfdpic_plt_initial_offset (info))
2526 resolverStub_addr = bfinfdpic_plt_initial_offset (info) - LZPLT_NORMAL_SIZE - LZPLT_RESOLVER_EXTRA;
0f64bb02 2527
c96a8570 2528 if (entry->lzplt_entry == resolverStub_addr)
0f64bb02 2529 {
c96a8570
BS		 2530 /* This is a lazy PLT entry that includes a resolver call.
2531 P2 = [P3];
2532 R3 = [P3 + 4];
2533 JUMP (P2); */
2534 bfd_put_32 (output_bfd,
2535 0xa05b915a,
2536 lzplt_code);
2537 bfd_put_16 (output_bfd, 0x0052, lzplt_code + 4);
2538 }
2539 else
2540 {
2541 /* JUMP.S resolverStub */
2542 bfd_put_16 (output_bfd,
2543 0x2000
2544 | (((resolverStub_addr - entry->lzplt_entry)
2545 / 2) & (((bfd_vma)1 << 12) - 1)),
2546 lzplt_code);
2547 }
2548 }
0f64bb02 2549
c96a8570
BS		 2550 return TRUE;
2551}
2552\f
2553/* Relocate an Blackfin ELF section.
48d502e1 2554
c96a8570
BS		 2555 The RELOCATE_SECTION function is called by the new ELF backend linker
2556 to handle the relocations for a section.
48d502e1 2557
c96a8570
BS		 2558 The relocs are always passed as Rela structures; if the section
2559 actually uses Rel structures, the r_addend field will always be
2560 zero.
48d502e1 2561
c96a8570
BS		 2562 This function is responsible for adjusting the section contents as
2563 necessary, and (if using Rela relocs and generating a relocatable
2564 output file) adjusting the reloc addend as necessary.
48d502e1 2565
c96a8570
BS		 2566 This function does not have to worry about setting the reloc
2567 address or the reloc symbol index.
48d502e1 2568
c96a8570 2569 LOCAL_SYMS is a pointer to the swapped in local symbols.
48d502e1 2570
c96a8570
BS		 2571 LOCAL_SECTIONS is an array giving the section in the input file
2572 corresponding to the st_shndx field of each local symbol.
48d502e1 2573
c96a8570
BS		 2574 The global hash table entry for the global symbols can be found
2575 via elf_sym_hashes (input_bfd).
48d502e1 2576
c96a8570
BS		 2577 When generating relocatable output, this function must handle
2578 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2579 going to be the section symbol corresponding to the output
2580 section, which means that the addend must be adjusted
2581 accordingly. */
48d502e1
BS		 2582
2583static bfd_boolean
c96a8570
BS		 2584bfinfdpic_relocate_section (bfd * output_bfd,
2585 struct bfd_link_info *info,
2586 bfd * input_bfd,
2587 asection * input_section,
2588 bfd_byte * contents,
2589 Elf_Internal_Rela * relocs,
2590 Elf_Internal_Sym * local_syms,
2591 asection ** local_sections)
48d502e1 2592{
48d502e1
BS		 2593 Elf_Internal_Shdr *symtab_hdr;
2594 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS		 2595 Elf_Internal_Rela *rel;
2596 Elf_Internal_Rela *relend;
c96a8570
BS		 2597 unsigned isec_segment, got_segment, plt_segment,
2598 check_segment[2];
0e1862bb 2599 int silence_segment_error = !bfd_link_pic (info);
48d502e1 2600
c96a8570 2601 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
48d502e1 2602 sym_hashes = elf_sym_hashes (input_bfd);
c96a8570 2603 relend = relocs + input_section->reloc_count;
48d502e1 2604
c96a8570
BS		 2605 isec_segment = _bfinfdpic_osec_to_segment (output_bfd,
2606 input_section->output_section);
2607 if (IS_FDPIC (output_bfd) && bfinfdpic_got_section (info))
2608 got_segment = _bfinfdpic_osec_to_segment (output_bfd,
2609 bfinfdpic_got_section (info)
2610 ->output_section);
2611 else
2612 got_segment = -1;
2613 if (IS_FDPIC (output_bfd) && elf_hash_table (info)->dynamic_sections_created)
2614 plt_segment = _bfinfdpic_osec_to_segment (output_bfd,
2615 bfinfdpic_plt_section (info)
2616 ->output_section);
2617 else
2618 plt_segment = -1;
48d502e1 2619
c96a8570 2620 for (rel = relocs; rel < relend; rel ++)
48d502e1 2621 {
48d502e1
BS		 2622 reloc_howto_type *howto;
2623 unsigned long r_symndx;
48d502e1
BS		 2624 Elf_Internal_Sym *sym;
2625 asection *sec;
c96a8570
BS		 2626 struct elf_link_hash_entry *h;
2627 bfd_vma relocation;
48d502e1 2628 bfd_reloc_status_type r;
c96a8570
BS		 2629 const char * name = NULL;
2630 int r_type;
2631 asection *osec;
2632 struct bfinfdpic_relocs_info *picrel;
2633 bfd_vma orig_addend = rel->r_addend;
48d502e1
BS		 2634
2635 r_type = ELF32_R_TYPE (rel->r_info);
48d502e1 2636
c96a8570
BS		 2637 if (r_type == R_BFIN_GNU_VTINHERIT
2638 || r_type == R_BFIN_GNU_VTENTRY)
48d502e1
BS		 2639 continue;
2640
c96a8570 2641 r_symndx = ELF32_R_SYM (rel->r_info);
48d502e1
BS		 2642 howto = bfin_reloc_type_lookup (input_bfd, r_type);
2643 if (howto == NULL)
2644 {
2645 bfd_set_error (bfd_error_bad_value);
2646 return FALSE;
2647 }
48d502e1 2648
c96a8570
BS		 2649 h = NULL;
2650 sym = NULL;
2651 sec = NULL;
2652
2653 if (r_symndx < symtab_hdr->sh_info)
2654 {
2655 sym = local_syms + r_symndx;
2656 osec = sec = local_sections [r_symndx];
2657 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2658
2659 name = bfd_elf_string_from_elf_section
2660 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2661 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
2662 }
2663 else
2664 {
62d887d4 2665 bfd_boolean warned, ignored;
c96a8570
BS		 2666 bfd_boolean unresolved_reloc;
2667
2668 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2669 r_symndx, symtab_hdr, sym_hashes,
2670 h, sec, relocation,
62d887d4 2671 unresolved_reloc, warned, ignored);
c96a8570
BS		 2672 osec = sec;
2673 }
2674
dbaa2011 2675 if (sec != NULL && discarded_section (sec))
e4067dbb 2676 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2677 rel, 1, relend, howto, 0, contents);
c96a8570 2678
0e1862bb 2679 if (bfd_link_relocatable (info))
c96a8570
BS		 2680 continue;
2681
2682 if (h != NULL
2683 && (h->root.type == bfd_link_hash_defined
2684 || h->root.type == bfd_link_hash_defweak)
2685 && !BFINFDPIC_SYM_LOCAL (info, h))
2686 {
2687 osec = sec = NULL;
2688 relocation = 0;
2689 }
2690
2691 switch (r_type)
2692 {
cb88ce9f
BS		 2693 case R_BFIN_PCREL24:
2694 case R_BFIN_PCREL24_JUMP_L:
2695 case R_BFIN_BYTE4_DATA:
c96a8570
BS		 2696 if (! IS_FDPIC (output_bfd))
2697 goto non_fdpic;
2698
2699 case R_BFIN_GOT17M4:
2700 case R_BFIN_GOTHI:
2701 case R_BFIN_GOTLO:
2702 case R_BFIN_FUNCDESC_GOT17M4:
2703 case R_BFIN_FUNCDESC_GOTHI:
2704 case R_BFIN_FUNCDESC_GOTLO:
2705 case R_BFIN_GOTOFF17M4:
2706 case R_BFIN_GOTOFFHI:
2707 case R_BFIN_GOTOFFLO:
2708 case R_BFIN_FUNCDESC_GOTOFF17M4:
2709 case R_BFIN_FUNCDESC_GOTOFFHI:
2710 case R_BFIN_FUNCDESC_GOTOFFLO:
2711 case R_BFIN_FUNCDESC:
2712 case R_BFIN_FUNCDESC_VALUE:
2713 if (h != NULL)
2714 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info
2715 (info), input_bfd, h,
2716 orig_addend, INSERT);
2717 else
2718 /* In order to find the entry we created before, we must
2719 use the original addend, not the one that may have been
2720 modified by _bfd_elf_rela_local_sym(). */
2721 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
2722 (info), input_bfd, r_symndx,
2723 orig_addend, INSERT);
2724 if (! picrel)
2725 return FALSE;
2726
2727 if (!_bfinfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2728 osec, sym,
2729 rel->r_addend))
2730 {
2731 (*_bfd_error_handler)
2732 (_("%B: relocation at `%A+0x%x' references symbol `%s' with nonzero addend"),
2733 input_bfd, input_section, rel->r_offset, name);
2734 return FALSE;
2735
2736 }
48d502e1 2737
c96a8570 2738 break;
ab96bf03 2739
c96a8570
BS		 2740 default:
2741 non_fdpic:
2742 picrel = NULL;
1d5316ab
AM		 2743 if (h && ! BFINFDPIC_SYM_LOCAL (info, h)
2744 && _bfd_elf_section_offset (output_bfd, info, input_section,
2745 rel->r_offset) != (bfd_vma) -1)
c96a8570
BS		 2746 {
2747 info->callbacks->warning
2748 (info, _("relocation references symbol not defined in the module"),
2749 name, input_bfd, input_section, rel->r_offset);
2750 return FALSE;
2751 }
2752 break;
48d502e1
BS		 2753 }
2754
c96a8570 2755 switch (r_type)
ab96bf03 2756 {
cb88ce9f
BS		 2757 case R_BFIN_PCREL24:
2758 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS		 2759 check_segment[0] = isec_segment;
2760 if (! IS_FDPIC (output_bfd))
2761 check_segment[1] = isec_segment;
2762 else if (picrel->plt)
2763 {
2764 relocation = bfinfdpic_plt_section (info)->output_section->vma
2765 + bfinfdpic_plt_section (info)->output_offset
2766 + picrel->plt_entry;
2767 check_segment[1] = plt_segment;
2768 }
2769 /* We don't want to warn on calls to undefined weak symbols,
2770 as calls to them must be protected by non-NULL tests
2771 anyway, and unprotected calls would invoke undefined
2772 behavior. */
2773 else if (picrel->symndx == -1
2774 && picrel->d.h->root.type == bfd_link_hash_undefweak)
2775 check_segment[1] = check_segment[0];
2776 else
2777 check_segment[1] = sec
2778 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2779 : (unsigned)-1;
2780 break;
ab96bf03 2781
c96a8570
BS		 2782 case R_BFIN_GOT17M4:
2783 case R_BFIN_GOTHI:
2784 case R_BFIN_GOTLO:
2785 relocation = picrel->got_entry;
2786 check_segment[0] = check_segment[1] = got_segment;
2787 break;
ab96bf03 2788
c96a8570
BS		 2789 case R_BFIN_FUNCDESC_GOT17M4:
2790 case R_BFIN_FUNCDESC_GOTHI:
2791 case R_BFIN_FUNCDESC_GOTLO:
2792 relocation = picrel->fdgot_entry;
2793 check_segment[0] = check_segment[1] = got_segment;
2794 break;
48d502e1 2795
c96a8570
BS		 2796 case R_BFIN_GOTOFFHI:
2797 case R_BFIN_GOTOFF17M4:
2798 case R_BFIN_GOTOFFLO:
2799 relocation -= bfinfdpic_got_section (info)->output_section->vma
2800 + bfinfdpic_got_section (info)->output_offset
2801 + bfinfdpic_got_initial_offset (info);
2802 check_segment[0] = got_segment;
2803 check_segment[1] = sec
2804 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
2805 : (unsigned)-1;
2806 break;
48d502e1 2807
c96a8570
BS		 2808 case R_BFIN_FUNCDESC_GOTOFF17M4:
2809 case R_BFIN_FUNCDESC_GOTOFFHI:
2810 case R_BFIN_FUNCDESC_GOTOFFLO:
2811 relocation = picrel->fd_entry;
2812 check_segment[0] = check_segment[1] = got_segment;
2813 break;
48d502e1 2814
c96a8570 2815 case R_BFIN_FUNCDESC:
48d502e1 2816 {
c96a8570
BS		 2817 int dynindx;
2818 bfd_vma addend = rel->r_addend;
48d502e1 2819
c96a8570
BS		 2820 if (! (h && h->root.type == bfd_link_hash_undefweak
2821 && BFINFDPIC_SYM_LOCAL (info, h)))
2822 {
2823 /* If the symbol is dynamic and there may be dynamic
2824 symbol resolution because we are or are linked with a
2825 shared library, emit a FUNCDESC relocation such that
2826 the dynamic linker will allocate the function
2827 descriptor. If the symbol needs a non-local function
2828 descriptor but binds locally (e.g., its visibility is
2829 protected, emit a dynamic relocation decayed to
2830 section+offset. */
2831 if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h)
2832 && BFINFDPIC_SYM_LOCAL (info, h)
3cbc1e5e 2833 && !bfd_link_pde (info))
c96a8570
BS		 2834 {
2835 dynindx = elf_section_data (h->root.u.def.section
2836 ->output_section)->dynindx;
2837 addend += h->root.u.def.section->output_offset
2838 + h->root.u.def.value;
2839 }
2840 else if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h))
2841 {
2842 if (addend)
2843 {
2844 info->callbacks->warning
2845 (info, _("R_BFIN_FUNCDESC references dynamic symbol with nonzero addend"),
2846 name, input_bfd, input_section, rel->r_offset);
2847 return FALSE;
2848 }
2849 dynindx = h->dynindx;
2850 }
2851 else
2852 {
2853 /* Otherwise, we know we have a private function
2854 descriptor, so reference it directly. */
2855 BFD_ASSERT (picrel->privfd);
cb88ce9f 2856 r_type = R_BFIN_BYTE4_DATA;
c96a8570
BS		 2857 dynindx = elf_section_data (bfinfdpic_got_section (info)
2858 ->output_section)->dynindx;
2859 addend = bfinfdpic_got_section (info)->output_offset
2860 + bfinfdpic_got_initial_offset (info)
2861 + picrel->fd_entry;
2862 }
2863
2864 /* If there is room for dynamic symbol resolution, emit
2865 the dynamic relocation. However, if we're linking an
2866 executable at a fixed location, we won't have emitted a
2867 dynamic symbol entry for the got section, so idx will
2868 be zero, which means we can and should compute the
2869 address of the private descriptor ourselves. */
3cbc1e5e 2870 if (bfd_link_pde (info)
c96a8570
BS		 2871 && (!h || BFINFDPIC_FUNCDESC_LOCAL (info, h)))
2872 {
6a9adeca
BS		 2873 bfd_vma offset;
2874
c96a8570
BS		 2875 addend += bfinfdpic_got_section (info)->output_section->vma;
2876 if ((bfd_get_section_flags (output_bfd,
2877 input_section->output_section)
2878 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2879 {
2880 if (_bfinfdpic_osec_readonly_p (output_bfd,
2881 input_section
2882 ->output_section))
2883 {
2884 info->callbacks->warning
2885 (info,
2886 _("cannot emit fixups in read-only section"),
2887 name, input_bfd, input_section, rel->r_offset);
2888 return FALSE;
2889 }
6a9adeca
BS		 2890
2891 offset = _bfd_elf_section_offset
2892 (output_bfd, info,
2893 input_section, rel->r_offset);
2894
2895 if (offset != (bfd_vma)-1)
2896 _bfinfdpic_add_rofixup (output_bfd,
2897 bfinfdpic_gotfixup_section
2898 (info),
2899 offset + input_section
2900 ->output_section->vma
2901 + input_section->output_offset,
2902 picrel);
c96a8570
BS		 2903 }
2904 }
2905 else if ((bfd_get_section_flags (output_bfd,
2906 input_section->output_section)
2907 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2908 {
2909 bfd_vma offset;
2910
2911 if (_bfinfdpic_osec_readonly_p (output_bfd,
2912 input_section
2913 ->output_section))
2914 {
2915 info->callbacks->warning
2916 (info,
2917 _("cannot emit dynamic relocations in read-only section"),
2918 name, input_bfd, input_section, rel->r_offset);
2919 return FALSE;
2920 }
2921 offset = _bfd_elf_section_offset (output_bfd, info,
2922 input_section, rel->r_offset);
6a9adeca
BS		 2923
2924 if (offset != (bfd_vma)-1)
c96a8570
BS		 2925 _bfinfdpic_add_dyn_reloc (output_bfd,
2926 bfinfdpic_gotrel_section (info),
2927 offset + input_section
2928 ->output_section->vma
2929 + input_section->output_offset,
2930 r_type,
2931 dynindx, addend, picrel);
2932 }
2933 else
2934 addend += bfinfdpic_got_section (info)->output_section->vma;
2935 }
2936
2937 /* We want the addend in-place because dynamic
2938 relocations are REL. Setting relocation to it should
2939 arrange for it to be installed. */
2940 relocation = addend - rel->r_addend;
2941 }
2942 check_segment[0] = check_segment[1] = got_segment;
2943 break;
2944
cb88ce9f 2945 case R_BFIN_BYTE4_DATA:
c96a8570 2946 if (! IS_FDPIC (output_bfd))
7a84e3da 2947 {
c96a8570
BS		 2948 check_segment[0] = check_segment[1] = -1;
2949 break;
7a84e3da 2950 }
c96a8570
BS		 2951 /* Fall through. */
2952 case R_BFIN_FUNCDESC_VALUE:
2953 {
2954 int dynindx;
2955 bfd_vma addend = rel->r_addend;
2956 bfd_vma offset;
2957 offset = _bfd_elf_section_offset (output_bfd, info,
2958 input_section, rel->r_offset);
7a84e3da 2959
c96a8570
BS		 2960 /* If the symbol is dynamic but binds locally, use
2961 section+offset. */
2962 if (h && ! BFINFDPIC_SYM_LOCAL (info, h))
48d502e1 2963 {
c96a8570
BS		 2964 if (addend && r_type == R_BFIN_FUNCDESC_VALUE)
2965 {
2966 info->callbacks->warning
2967 (info, _("R_BFIN_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
2968 name, input_bfd, input_section, rel->r_offset);
2969 return FALSE;
2970 }
2971 dynindx = h->dynindx;
48d502e1 2972 }
c96a8570 2973 else
48d502e1 2974 {
c96a8570
BS		 2975 if (h)
2976 addend += h->root.u.def.value;
2977 else
2978 addend += sym->st_value;
2979 if (osec)
2980 addend += osec->output_offset;
2981 if (osec && osec->output_section
2982 && ! bfd_is_abs_section (osec->output_section)
2983 && ! bfd_is_und_section (osec->output_section))
2984 dynindx = elf_section_data (osec->output_section)->dynindx;
2985 else
2986 dynindx = 0;
2987 }
48d502e1 2988
c96a8570
BS		 2989 /* If we're linking an executable at a fixed address, we
2990 can omit the dynamic relocation as long as the symbol
2991 is defined in the current link unit (which is implied
2992 by its output section not being NULL). */
3cbc1e5e 2993 if (bfd_link_pde (info)
c96a8570
BS		 2994 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
2995 {
2996 if (osec)
2997 addend += osec->output_section->vma;
2998 if (IS_FDPIC (input_bfd)
2999 && (bfd_get_section_flags (output_bfd,
3000 input_section->output_section)
3001 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 3002 {
c96a8570
BS		 3003 if (_bfinfdpic_osec_readonly_p (output_bfd,
3004 input_section
3005 ->output_section))
48d502e1 3006 {
c96a8570
BS		 3007 info->callbacks->warning
3008 (info,
3009 _("cannot emit fixups in read-only section"),
3010 name, input_bfd, input_section, rel->r_offset);
3011 return FALSE;
3012 }
3013 if (!h || h->root.type != bfd_link_hash_undefweak)
3014 {
6a9adeca 3015 if (offset != (bfd_vma)-1)
c96a8570 3016 {
6a9adeca
BS		 3017 _bfinfdpic_add_rofixup (output_bfd,
3018 bfinfdpic_gotfixup_section
3019 (info),
3020 offset + input_section
3021 ->output_section->vma
3022 + input_section->output_offset,
3023 picrel);
3024
3025 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS		 3026 _bfinfdpic_add_rofixup
3027 (output_bfd,
3028 bfinfdpic_gotfixup_section (info),
3029 offset + input_section->output_section->vma
3030 + input_section->output_offset + 4, picrel);
3031 }
48d502e1
BS		 3032 }
3033 }
48d502e1
BS		 3034 }
3035 else
3036 {
c96a8570
BS		 3037 if ((bfd_get_section_flags (output_bfd,
3038 input_section->output_section)
3039 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
48d502e1 3040 {
c96a8570
BS		 3041 if (_bfinfdpic_osec_readonly_p (output_bfd,
3042 input_section
3043 ->output_section))
48d502e1 3044 {
c96a8570
BS		 3045 info->callbacks->warning
3046 (info,
3047 _("cannot emit dynamic relocations in read-only section"),
3048 name, input_bfd, input_section, rel->r_offset);
3049 return FALSE;
48d502e1 3050 }
6a9adeca
BS		 3051
3052 if (offset != (bfd_vma)-1)
c96a8570
BS		 3053 _bfinfdpic_add_dyn_reloc (output_bfd,
3054 bfinfdpic_gotrel_section (info),
3055 offset
6a9adeca 3056 + input_section->output_section->vma
c96a8570
BS		 3057 + input_section->output_offset,
3058 r_type, dynindx, addend, picrel);
48d502e1 3059 }
c96a8570
BS		 3060 else if (osec)
3061 addend += osec->output_section->vma;
3062 /* We want the addend in-place because dynamic
3063 relocations are REL. Setting relocation to it
3064 should arrange for it to be installed. */
3065 relocation = addend - rel->r_addend;
3066 }
3067
6a9adeca 3068 if (r_type == R_BFIN_FUNCDESC_VALUE)
c96a8570
BS		 3069 {
3070 /* If we've omitted the dynamic relocation, just emit
3071 the fixed addresses of the symbol and of the local
3072 GOT base offset. */
3cbc1e5e 3073 if (bfd_link_pde (info)
c96a8570
BS		 3074 && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
3075 bfd_put_32 (output_bfd,
3076 bfinfdpic_got_section (info)->output_section->vma
3077 + bfinfdpic_got_section (info)->output_offset
3078 + bfinfdpic_got_initial_offset (info),
3079 contents + rel->r_offset + 4);
3080 else
3081 /* A function descriptor used for lazy or local
3082 resolving is initialized such that its high word
3083 contains the output section index in which the
3084 PLT entries are located, and the low word
3085 contains the offset of the lazy PLT entry entry
3086 point into that section. */
3087 bfd_put_32 (output_bfd,
3088 h && ! BFINFDPIC_SYM_LOCAL (info, h)
3089 ? 0
3090 : _bfinfdpic_osec_to_segment (output_bfd,
3091 sec
3092 ->output_section),
3093 contents + rel->r_offset + 4);
48d502e1 3094 }
c96a8570
BS		 3095 }
3096 check_segment[0] = check_segment[1] = got_segment;
3097 break;
3098
3099 default:
3100 check_segment[0] = isec_segment;
3101 check_segment[1] = sec
3102 ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
3103 : (unsigned)-1;
3104 break;
3105 }
3106
3107 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3108 {
3109#if 1 /* If you take this out, remove the #error from fdpic-static-6.d
3110 in the ld testsuite. */
3111 /* This helps catch problems in GCC while we can't do more
3112 than static linking. The idea is to test whether the
3113 input file basename is crt0.o only once. */
3114 if (silence_segment_error == 1)
3115 silence_segment_error =
3116 (strlen (input_bfd->filename) == 6
007d6189 3117 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
c96a8570 3118 || (strlen (input_bfd->filename) > 6
007d6189
KT		 3119 && filename_cmp (input_bfd->filename
3120 + strlen (input_bfd->filename) - 7,
c96a8570
BS		 3121 "/crt0.o") == 0)
3122 ? -1 : 0;
3123#endif
3124 if (!silence_segment_error
3125 /* We don't want duplicate errors for undefined
3126 symbols. */
3127 && !(picrel && picrel->symndx == -1
3128 && picrel->d.h->root.type == bfd_link_hash_undefined))
3129 info->callbacks->warning
3130 (info,
0e1862bb 3131 bfd_link_pic (info)
c96a8570
BS		 3132 ? _("relocations between different segments are not supported")
3133 : _("warning: relocation references a different segment"),
3134 name, input_bfd, input_section, rel->r_offset);
0e1862bb 3135 if (!silence_segment_error && bfd_link_pic (info))
c96a8570
BS		 3136 return FALSE;
3137 elf_elfheader (output_bfd)->e_flags |= EF_BFIN_PIC;
3138 }
3139
3140 switch (r_type)
3141 {
3142 case R_BFIN_GOTOFFHI:
3143 /* We need the addend to be applied before we shift the
3144 value right. */
3145 relocation += rel->r_addend;
3146 /* Fall through. */
3147 case R_BFIN_GOTHI:
3148 case R_BFIN_FUNCDESC_GOTHI:
3149 case R_BFIN_FUNCDESC_GOTOFFHI:
3150 relocation >>= 16;
3151 /* Fall through. */
48d502e1 3152
c96a8570
BS		 3153 case R_BFIN_GOTLO:
3154 case R_BFIN_FUNCDESC_GOTLO:
3155 case R_BFIN_GOTOFFLO:
3156 case R_BFIN_FUNCDESC_GOTOFFLO:
3157 relocation &= 0xffff;
3158 break;
48d502e1 3159
48d502e1 3160 default:
48d502e1
BS		 3161 break;
3162 }
3163
c96a8570 3164 switch (r_type)
48d502e1 3165 {
cb88ce9f
BS		 3166 case R_BFIN_PCREL24:
3167 case R_BFIN_PCREL24_JUMP_L:
c96a8570
BS		 3168 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3169 break;
3170 /* Fall through. */
3171
3172 /* When referencing a GOT entry, a function descriptor or a
3173 PLT, we don't want the addend to apply to the reference,
3174 but rather to the referenced symbol. The actual entry
3175 will have already been created taking the addend into
3176 account, so cancel it out here. */
3177 case R_BFIN_GOT17M4:
3178 case R_BFIN_GOTHI:
3179 case R_BFIN_GOTLO:
3180 case R_BFIN_FUNCDESC_GOT17M4:
3181 case R_BFIN_FUNCDESC_GOTHI:
3182 case R_BFIN_FUNCDESC_GOTLO:
3183 case R_BFIN_FUNCDESC_GOTOFF17M4:
3184 case R_BFIN_FUNCDESC_GOTOFFHI:
3185 case R_BFIN_FUNCDESC_GOTOFFLO:
3186 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF17M4
3187 here, since we do want to apply the addend to the others.
3188 Note that we've applied the addend to GOTOFFHI before we
3189 shifted it right. */
3190 case R_BFIN_GOTOFFHI:
3191 relocation -= rel->r_addend;
3192 break;
3193
3194 default:
3195 break;
48d502e1
BS		 3196 }
3197
c96a8570
BS		 3198 r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
3199 contents, rel->r_offset,
3200 relocation, rel->r_addend);
3201
48d502e1
BS		 3202 if (r != bfd_reloc_ok)
3203 {
c96a8570 3204 const char * msg = (const char *) NULL;
48d502e1 3205
c96a8570 3206 switch (r)
48d502e1 3207 {
c96a8570 3208 case bfd_reloc_overflow:
1a72702b 3209 (*info->callbacks->reloc_overflow)
c96a8570
BS		 3210 (info, (h ? &h->root : NULL), name, howto->name,
3211 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3212 break;
0f64bb02 3213
c96a8570 3214 case bfd_reloc_undefined:
1a72702b 3215 (*info->callbacks->undefined_symbol)
c96a8570
BS		 3216 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3217 break;
3218
3219 case bfd_reloc_outofrange:
3220 msg = _("internal error: out of range error");
3221 break;
3222
3223 case bfd_reloc_notsupported:
3224 msg = _("internal error: unsupported relocation error");
3225 break;
3226
3227 case bfd_reloc_dangerous:
3228 msg = _("internal error: dangerous relocation");
3229 break;
3230
3231 default:
3232 msg = _("internal error: unknown error");
3233 break;
48d502e1 3234 }
c96a8570
BS		 3235
3236 if (msg)
1a72702b
AM		 3237 (*info->callbacks->warning) (info, msg, name, input_bfd,
3238 input_section, rel->r_offset);
48d502e1
BS		 3239 }
3240 }
3241
3242 return TRUE;
3243}
3244
2774f1a6
BS		 3245/* Update the relocation information for the relocations of the section
3246 being removed. */
3247
3248static bfd_boolean
3249bfinfdpic_gc_sweep_hook (bfd *abfd,
3250 struct bfd_link_info *info,
3251 asection *sec,
3252 const Elf_Internal_Rela *relocs)
3253{
3254 Elf_Internal_Shdr *symtab_hdr;
3255 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3256 const Elf_Internal_Rela *rel;
3257 const Elf_Internal_Rela *rel_end;
3258 struct bfinfdpic_relocs_info *picrel;
3259
3260 BFD_ASSERT (IS_FDPIC (abfd));
3261
3262 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3263 sym_hashes = elf_sym_hashes (abfd);
3264 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
3265 if (!elf_bad_symtab (abfd))
3266 sym_hashes_end -= symtab_hdr->sh_info;
3267
3268 rel_end = relocs + sec->reloc_count;
3269 for (rel = relocs; rel < rel_end; rel++)
3270 {
3271 struct elf_link_hash_entry *h;
3272 unsigned long r_symndx;
3273
3274 r_symndx = ELF32_R_SYM (rel->r_info);
3275 if (r_symndx < symtab_hdr->sh_info)
3276 h = NULL;
3277 else
3278 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3279
3280 if (h != NULL)
3281 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
3282 abfd, h,
3283 rel->r_addend, NO_INSERT);
3284 else
3285 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
3286 (info), abfd, r_symndx,
3287 rel->r_addend, NO_INSERT);
3288
3289 if (!picrel)
3290 return TRUE;
3291
3292 switch (ELF32_R_TYPE (rel->r_info))
3293 {
cb88ce9f
BS		 3294 case R_BFIN_PCREL24:
3295 case R_BFIN_PCREL24_JUMP_L:
2774f1a6
BS		 3296 picrel->call--;
3297 break;
3298
3299 case R_BFIN_FUNCDESC_VALUE:
3300 picrel->relocsfdv--;
3301 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
3302 picrel->relocs32++;
3303 /* Fall through. */
3304
cb88ce9f 3305 case R_BFIN_BYTE4_DATA:
2774f1a6
BS		 3306 picrel->sym--;
3307 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
3308 picrel->relocs32--;
3309 break;
3310
3311 case R_BFIN_GOT17M4:
3312 picrel->got17m4--;
3313 break;
3314
3315 case R_BFIN_GOTHI:
3316 case R_BFIN_GOTLO:
3317 picrel->gothilo--;
3318 break;
3319
3320 case R_BFIN_FUNCDESC_GOT17M4:
3321 picrel->fdgot17m4--;
3322 break;
3323
3324 case R_BFIN_FUNCDESC_GOTHI:
3325 case R_BFIN_FUNCDESC_GOTLO:
3326 picrel->fdgothilo--;
3327 break;
3328
3329 case R_BFIN_GOTOFF17M4:
3330 case R_BFIN_GOTOFFHI:
3331 case R_BFIN_GOTOFFLO:
3332 picrel->gotoff--;
3333 break;
3334
3335 case R_BFIN_FUNCDESC_GOTOFF17M4:
3336 picrel->fdgoff17m4--;
3337 break;
3338
3339 case R_BFIN_FUNCDESC_GOTOFFHI:
3340 case R_BFIN_FUNCDESC_GOTOFFLO:
3341 picrel->fdgoffhilo--;
3342 break;
3343
3344 case R_BFIN_FUNCDESC:
3345 picrel->fd--;
3346 picrel->relocsfd--;
3347 break;
3348
3349 default:
3350 break;
3351 }
3352 }
3353
3354 return TRUE;
3355}
3356
48d502e1
BS		 3357/* We need dynamic symbols for every section, since segments can
3358 relocate independently. */
3359static bfd_boolean
3360_bfinfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
51408ec2
AM		 3361 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3362 asection *p)
48d502e1
BS		 3363{
3364 switch (elf_section_data (p)->this_hdr.sh_type)
3365 {
3366 case SHT_PROGBITS:
3367 case SHT_NOBITS:
3368 /* If sh_type is yet undecided, assume it could be
3369 SHT_PROGBITS/SHT_NOBITS. */
3370 case SHT_NULL:
3371 return FALSE;
3372
3373 /* There shouldn't be section relative relocations
3374 against any other section. */
3375 default:
3376 return TRUE;
3377 }
3378}
3379
3380/* Create a .got section, as well as its additional info field. This
3381 is almost entirely copied from
3382 elflink.c:_bfd_elf_create_got_section(). */
3383
3384static bfd_boolean
3385_bfin_create_got_section (bfd *abfd, struct bfd_link_info *info)
3386{
3387 flagword flags, pltflags;
3388 asection *s;
3389 struct elf_link_hash_entry *h;
48d502e1
BS		 3390 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3391 int ptralign;
48d502e1
BS		 3392
3393 /* This function may be called more than once. */
3d4d4302
AM		 3394 s = bfd_get_linker_section (abfd, ".got");
3395 if (s != NULL)
48d502e1
BS		 3396 return TRUE;
3397
3398 /* Machine specific: although pointers are 32-bits wide, we want the
3399 GOT to be aligned to a 64-bit boundary, such that function
3400 descriptors in it can be accessed with 64-bit loads and
3401 stores. */
3402 ptralign = 3;
3403
3404 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3405 | SEC_LINKER_CREATED);
3406 pltflags = flags;
3407
3d4d4302 3408 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
48d502e1
BS		 3409 if (s == NULL
3410 || !bfd_set_section_alignment (abfd, s, ptralign))
3411 return FALSE;
3412
3413 if (bed->want_got_plt)
3414 {
3d4d4302 3415 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
48d502e1
BS		 3416 if (s == NULL
3417 || !bfd_set_section_alignment (abfd, s, ptralign))
3418 return FALSE;
3419 }
3420
3421 if (bed->want_got_sym)
3422 {
3423 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
3424 (or .got.plt) section. We don't do this in the linker script
3425 because we don't want to define the symbol if we are not creating
3426 a global offset table. */
5592d7ec 3427 h = _bfd_elf_define_linkage_sym (abfd, info, s, "__GLOBAL_OFFSET_TABLE_");
48d502e1
BS		 3428 elf_hash_table (info)->hgot = h;
3429 if (h == NULL)
3430 return FALSE;
3431
3432 /* Machine-specific: we want the symbol for executables as
3433 well. */
3434 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3435 return FALSE;
3436 }
3437
3438 /* The first bit of the global offset table is the header. */
3439 s->size += bed->got_header_size;
3440
3441 /* This is the machine-specific part. Create and initialize section
3442 data for the got. */
3443 if (IS_FDPIC (abfd))
3444 {
3445 bfinfdpic_got_section (info) = s;
3446 bfinfdpic_relocs_info (info) = htab_try_create (1,
3447 bfinfdpic_relocs_info_hash,
3448 bfinfdpic_relocs_info_eq,
3449 (htab_del) NULL);
3450 if (! bfinfdpic_relocs_info (info))
3451 return FALSE;
3452
3d4d4302
AM		 3453 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
3454 (flags | SEC_READONLY));
48d502e1
BS		 3455 if (s == NULL
3456 || ! bfd_set_section_alignment (abfd, s, 2))
3457 return FALSE;
3458
3459 bfinfdpic_gotrel_section (info) = s;
3460
3461 /* Machine-specific. */
3d4d4302
AM		 3462 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
3463 (flags | SEC_READONLY));
48d502e1
BS		 3464 if (s == NULL
3465 || ! bfd_set_section_alignment (abfd, s, 2))
3466 return FALSE;
3467
3468 bfinfdpic_gotfixup_section (info) = s;
48d502e1
BS		 3469 }
3470
48d502e1
BS		 3471 pltflags |= SEC_CODE;
3472 if (bed->plt_not_loaded)
3473 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
3474 if (bed->plt_readonly)
3475 pltflags |= SEC_READONLY;
3476
3d4d4302 3477 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
48d502e1 3478 if (s == NULL
48d502e1
BS		 3479 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3480 return FALSE;
3481 /* Blackfin-specific: remember it. */
3482 bfinfdpic_plt_section (info) = s;
3483
3484 if (bed->want_plt_sym)
3485 {
3486 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3487 .plt section. */
48d502e1
BS		 3488 struct bfd_link_hash_entry *bh = NULL;
3489
3490 if (! (_bfd_generic_link_add_one_symbol
5592d7ec 3491 (info, abfd, "__PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
48d502e1
BS		 3492 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
3493 return FALSE;
3494 h = (struct elf_link_hash_entry *) bh;
3495 h->def_regular = 1;
3496 h->type = STT_OBJECT;
3497
0e1862bb 3498 if (! bfd_link_executable (info)
48d502e1
BS		 3499 && ! bfd_elf_link_record_dynamic_symbol (info, h))
3500 return FALSE;
3501 }
3502
3503 /* Blackfin-specific: we want rel relocations for the plt. */
3d4d4302
AM		 3504 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
3505 flags | SEC_READONLY);
48d502e1 3506 if (s == NULL
48d502e1
BS		 3507 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
3508 return FALSE;
3509 /* Blackfin-specific: remember it. */
3510 bfinfdpic_pltrel_section (info) = s;
3511
6a9adeca
BS		 3512 return TRUE;
3513}
3514
3515/* Make sure the got and plt sections exist, and that our pointers in
3516 the link hash table point to them. */
3517
3518static bfd_boolean
3519elf32_bfinfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3520{
3521 /* This is mostly copied from
3522 elflink.c:_bfd_elf_create_dynamic_sections(). */
3523 flagword flags;
3524 asection *s;
3525 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3526
3527 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3528 | SEC_LINKER_CREATED);
3529
3530 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3531 .rel[a].bss sections. */
3532
48d502e1
BS		 3533 /* Blackfin-specific: we want to create the GOT in the Blackfin way. */
3534 if (! _bfin_create_got_section (abfd, info))
3535 return FALSE;
3536
3537 /* Blackfin-specific: make sure we created everything we wanted. */
3538 BFD_ASSERT (bfinfdpic_got_section (info) && bfinfdpic_gotrel_section (info)
3539 /* && bfinfdpic_gotfixup_section (info) */
3540 && bfinfdpic_plt_section (info)
3541 && bfinfdpic_pltrel_section (info));
3542
3543 if (bed->want_dynbss)
3544 {
3545 /* The .dynbss section is a place to put symbols which are defined
3546 by dynamic objects, are referenced by regular objects, and are
3547 not functions. We must allocate space for them in the process
3548 image and use a R_*_COPY reloc to tell the dynamic linker to
3549 initialize them at run time. The linker script puts the .dynbss
3550 section into the .bss section of the final image. */
3d4d4302
AM		 3551 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
3552 SEC_ALLOC | SEC_LINKER_CREATED);
117ed4f8 3553 if (s == NULL)
48d502e1
BS		 3554 return FALSE;
3555
3556 /* The .rel[a].bss section holds copy relocs. This section is not
3d4d4302
AM		 3557 normally needed. We need to create it here, though, so that the
3558 linker will map it to an output section. We can't just create it
3559 only if we need it, because we will not know whether we need it
3560 until we have seen all the input files, and the first time the
3561 main linker code calls BFD after examining all the input files
3562 (size_dynamic_sections) the input sections have already been
3563 mapped to the output sections. If the section turns out not to
3564 be needed, we can discard it later. We will never need this
3565 section when generating a shared object, since they do not use
3566 copy relocs. */
0e1862bb 3567 if (! bfd_link_pic (info))
48d502e1 3568 {
3d4d4302
AM		 3569 s = bfd_make_section_anyway_with_flags (abfd,
3570 ".rela.bss",
3571 flags | SEC_READONLY);
48d502e1 3572 if (s == NULL
48d502e1
BS		 3573 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
3574 return FALSE;
3575 }
3576 }
3577
3578 return TRUE;
3579}
3580
48d502e1
BS		 3581/* Compute the total GOT size required by each symbol in each range.
3582 Symbols may require up to 4 words in the GOT: an entry pointing to
3583 the symbol, an entry pointing to its function descriptor, and a
3584 private function descriptors taking two words. */
3585
6a9adeca
BS		 3586static void
3587_bfinfdpic_count_nontls_entries (struct bfinfdpic_relocs_info *entry,
3588 struct _bfinfdpic_dynamic_got_info *dinfo)
48d502e1 3589{
48d502e1
BS		 3590 /* Allocate space for a GOT entry pointing to the symbol. */
3591 if (entry->got17m4)
3592 dinfo->got17m4 += 4;
3593 else if (entry->gothilo)
3594 dinfo->gothilo += 4;
3595 else
3596 entry->relocs32--;
3597 entry->relocs32++;
3598
3599 /* Allocate space for a GOT entry pointing to the function
3600 descriptor. */
3601 if (entry->fdgot17m4)
3602 dinfo->got17m4 += 4;
3603 else if (entry->fdgothilo)
3604 dinfo->gothilo += 4;
3605 else
3606 entry->relocsfd--;
3607 entry->relocsfd++;
3608
3609 /* Decide whether we need a PLT entry, a function descriptor in the
3610 GOT, and a lazy PLT entry for this symbol. */
3611 entry->plt = entry->call
3612 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3613 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3614 entry->privfd = entry->plt
3615 || entry->fdgoff17m4 || entry->fdgoffhilo
3616 || ((entry->fd || entry->fdgot17m4 || entry->fdgothilo)
3617 && (entry->symndx != -1
3618 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
3619 entry->lazyplt = entry->privfd
3620 && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
3621 && ! (dinfo->info->flags & DF_BIND_NOW)
3622 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3623
3624 /* Allocate space for a function descriptor. */
3625 if (entry->fdgoff17m4)
3626 dinfo->fd17m4 += 8;
3627 else if (entry->privfd && entry->plt)
3628 dinfo->fdplt += 8;
3629 else if (entry->privfd)
3630 dinfo->fdhilo += 8;
3631 else
3632 entry->relocsfdv--;
3633 entry->relocsfdv++;
3634
3635 if (entry->lazyplt)
3636 dinfo->lzplt += LZPLT_NORMAL_SIZE;
6a9adeca
BS		 3637}
3638
3639/* Compute the number of dynamic relocations and fixups that a symbol
3640 requires, and add (or subtract) from the grand and per-symbol
3641 totals. */
3642
3643static void
3644_bfinfdpic_count_relocs_fixups (struct bfinfdpic_relocs_info *entry,
3645 struct _bfinfdpic_dynamic_got_info *dinfo,
3646 bfd_boolean subtract)
3647{
3648 bfd_vma relocs = 0, fixups = 0;
48d502e1 3649
3cbc1e5e 3650 if (!bfd_link_pde (dinfo->info))
48d502e1
BS		 3651 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv;
3652 else
3653 {
3654 if (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
3655 {
3656 if (entry->symndx != -1
3657 || entry->d.h->root.type != bfd_link_hash_undefweak)
3658 fixups += entry->relocs32 + 2 * entry->relocsfdv;
3659 }
3660 else
3661 relocs += entry->relocs32 + entry->relocsfdv;
3662
3663 if (entry->symndx != -1
3664 || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
3665 {
3666 if (entry->symndx != -1
3667 || entry->d.h->root.type != bfd_link_hash_undefweak)
3668 fixups += entry->relocsfd;
3669 }
3670 else
3671 relocs += entry->relocsfd;
3672 }
3673
6a9adeca
BS		 3674 if (subtract)
3675 {
3676 relocs = - relocs;
3677 fixups = - fixups;
3678 }
3679
48d502e1
BS		 3680 entry->dynrelocs += relocs;
3681 entry->fixups += fixups;
3682 dinfo->relocs += relocs;
3683 dinfo->fixups += fixups;
6a9adeca
BS		 3684}
3685
3686/* Compute the total GOT and PLT size required by each symbol in each range. *
3687 Symbols may require up to 4 words in the GOT: an entry pointing to
3688 the symbol, an entry pointing to its function descriptor, and a
3689 private function descriptors taking two words. */
3690
3691static int
3692_bfinfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
3693{
3694 struct bfinfdpic_relocs_info *entry = *entryp;
3695 struct _bfinfdpic_dynamic_got_info *dinfo = dinfo_;
3696
3697 _bfinfdpic_count_nontls_entries (entry, dinfo);
3698
3699 _bfinfdpic_count_relocs_fixups (entry, dinfo, FALSE);
48d502e1
BS		 3700
3701 return 1;
3702}
3703
3704/* This structure is used to assign offsets to got entries, function
3705 descriptors, plt entries and lazy plt entries. */
3706
3707struct _bfinfdpic_dynamic_got_plt_info
3708{
3709 /* Summary information collected with _bfinfdpic_count_got_plt_entries. */
3710 struct _bfinfdpic_dynamic_got_info g;
3711
3712 /* For each addressable range, we record a MAX (positive) and MIN
3713 (negative) value. CUR is used to assign got entries, and it's
3714 incremented from an initial positive value to MAX, then from MIN
3715 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
3716 assign function descriptors, and it's decreased from an initial
3717 non-positive value to MIN, then from MAX down to CUR (unless CUR
3718 wraps around first). All of MIN, MAX, CUR and FDCUR always point
3719 to even words. ODD, if non-zero, indicates an odd word to be
3720 used for the next got entry, otherwise CUR is used and
3721 incremented by a pair of words, wrapping around when it reaches
3722 MAX. FDCUR is decremented (and wrapped) before the next function
3723 descriptor is chosen. FDPLT indicates the number of remaining
3724 slots that can be used for function descriptors used only by PLT
3725 entries. */
3726 struct _bfinfdpic_dynamic_got_alloc_data
3727 {
3728 bfd_signed_vma max, cur, odd, fdcur, min;
3729 bfd_vma fdplt;
3730 } got17m4, gothilo;
3731};
3732
3733/* Determine the positive and negative ranges to be used by each
3734 offset range in the GOT. FDCUR and CUR, that must be aligned to a
3735 double-word boundary, are the minimum (negative) and maximum
3736 (positive) GOT offsets already used by previous ranges, except for
3737 an ODD entry that may have been left behind. GOT and FD indicate
3738 the size of GOT entries and function descriptors that must be
3739 placed within the range from -WRAP to WRAP. If there's room left,
3740 up to FDPLT bytes should be reserved for additional function
3741 descriptors. */
3742
3743inline static bfd_signed_vma
3744_bfinfdpic_compute_got_alloc_data (struct _bfinfdpic_dynamic_got_alloc_data *gad,
3745 bfd_signed_vma fdcur,
3746 bfd_signed_vma odd,
3747 bfd_signed_vma cur,
3748 bfd_vma got,
3749 bfd_vma fd,
3750 bfd_vma fdplt,
3751 bfd_vma wrap)
3752{
3753 bfd_signed_vma wrapmin = -wrap;
3754
3755 /* Start at the given initial points. */
3756 gad->fdcur = fdcur;
3757 gad->cur = cur;
3758
3759 /* If we had an incoming odd word and we have any got entries that
3760 are going to use it, consume it, otherwise leave gad->odd at
3761 zero. We might force gad->odd to zero and return the incoming
3762 odd such that it is used by the next range, but then GOT entries
3763 might appear to be out of order and we wouldn't be able to
3764 shorten the GOT by one word if it turns out to end with an
3765 unpaired GOT entry. */
3766 if (odd && got)
3767 {
3768 gad->odd = odd;
3769 got -= 4;
3770 odd = 0;
3771 }
3772 else
3773 gad->odd = 0;
3774
3775 /* If we're left with an unpaired GOT entry, compute its location
3776 such that we can return it. Otherwise, if got doesn't require an
3777 odd number of words here, either odd was already zero in the
3778 block above, or it was set to zero because got was non-zero, or
3779 got was already zero. In the latter case, we want the value of
3780 odd to carry over to the return statement, so we don't want to
3781 reset odd unless the condition below is true. */
3782 if (got & 4)
3783 {
3784 odd = cur + got;
3785 got += 4;
3786 }
3787
3788 /* Compute the tentative boundaries of this range. */
3789 gad->max = cur + got;
3790 gad->min = fdcur - fd;
3791 gad->fdplt = 0;
3792
3793 /* If function descriptors took too much space, wrap some of them
3794 around. */
3795 if (gad->min < wrapmin)
3796 {
3797 gad->max += wrapmin - gad->min;
3798 gad->min = wrapmin;
3799 }
3800 /* If there is space left and we have function descriptors
3801 referenced in PLT entries that could take advantage of shorter
3802 offsets, place them here. */
3803 else if (fdplt && gad->min > wrapmin)
3804 {
3805 bfd_vma fds;
3806 if ((bfd_vma) (gad->min - wrapmin) < fdplt)
3807 fds = gad->min - wrapmin;
3808 else
3809 fds = fdplt;
3810
3811 fdplt -= fds;
3812 gad->min -= fds;
3813 gad->fdplt += fds;
3814 }
3815
3816 /* If GOT entries took too much space, wrap some of them around.
3817 This may well cause gad->min to become lower than wrapmin. This
3818 will cause a relocation overflow later on, so we don't have to
3819 report it here . */
3820 if ((bfd_vma) gad->max > wrap)
3821 {
3822 gad->min -= gad->max - wrap;
3823 gad->max = wrap;
3824 }
3825 /* If there is more space left, try to place some more function
3826 descriptors for PLT entries. */
3827 else if (fdplt && (bfd_vma) gad->max < wrap)
3828 {
3829 bfd_vma fds;
3830 if ((bfd_vma) (wrap - gad->max) < fdplt)
3831 fds = wrap - gad->max;
3832 else
3833 fds = fdplt;
3834
3835 fdplt -= fds;
3836 gad->max += fds;
3837 gad->fdplt += fds;
3838 }
3839
3840 /* If odd was initially computed as an offset past the wrap point,
3841 wrap it around. */
3842 if (odd > gad->max)
3843 odd = gad->min + odd - gad->max;
3844
3845 /* _bfinfdpic_get_got_entry() below will always wrap gad->cur if needed
3846 before returning, so do it here too. This guarantees that,
3847 should cur and fdcur meet at the wrap point, they'll both be
3848 equal to min. */
3849 if (gad->cur == gad->max)
3850 gad->cur = gad->min;
3851
3852 return odd;
3853}
3854
3855/* Compute the location of the next GOT entry, given the allocation
3856 data for a range. */
3857
3858inline static bfd_signed_vma
3859_bfinfdpic_get_got_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3860{
3861 bfd_signed_vma ret;
3862
3863 if (gad->odd)
3864 {
3865 /* If there was an odd word left behind, use it. */
3866 ret = gad->odd;
3867 gad->odd = 0;
3868 }
3869 else
3870 {
3871 /* Otherwise, use the word pointed to by cur, reserve the next
3872 as an odd word, and skip to the next pair of words, possibly
3873 wrapping around. */
3874 ret = gad->cur;
3875 gad->odd = gad->cur + 4;
3876 gad->cur += 8;
3877 if (gad->cur == gad->max)
3878 gad->cur = gad->min;
3879 }
3880
3881 return ret;
3882}
3883
3884/* Compute the location of the next function descriptor entry in the
3885 GOT, given the allocation data for a range. */
3886
3887inline static bfd_signed_vma
3888_bfinfdpic_get_fd_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
3889{
3890 /* If we're at the bottom, wrap around, and only then allocate the
3891 next pair of words. */
3892 if (gad->fdcur == gad->min)
3893 gad->fdcur = gad->max;
3894 return gad->fdcur -= 8;
3895}
3896
3897/* Assign GOT offsets for every GOT entry and function descriptor.
3898 Doing everything in a single pass is tricky. */
3899
3900static int
3901_bfinfdpic_assign_got_entries (void **entryp, void *info_)
3902{
3903 struct bfinfdpic_relocs_info *entry = *entryp;
3904 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3905
3906 if (entry->got17m4)
3907 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3908 else if (entry->gothilo)
3909 entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3910
3911 if (entry->fdgot17m4)
3912 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
3913 else if (entry->fdgothilo)
3914 entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
3915
3916 if (entry->fdgoff17m4)
3917 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3918 else if (entry->plt && dinfo->got17m4.fdplt)
3919 {
3920 dinfo->got17m4.fdplt -= 8;
3921 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3922 }
3923 else if (entry->plt)
3924 {
3925 dinfo->gothilo.fdplt -= 8;
3926 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3927 }
3928 else if (entry->privfd)
3929 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3930
3931 return 1;
3932}
3933
3934/* Assign GOT offsets to private function descriptors used by PLT
3935 entries (or referenced by 32-bit offsets), as well as PLT entries
3936 and lazy PLT entries. */
3937
3938static int
3939_bfinfdpic_assign_plt_entries (void **entryp, void *info_)
3940{
3941 struct bfinfdpic_relocs_info *entry = *entryp;
3942 struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
3943
3944 /* If this symbol requires a local function descriptor, allocate
3945 one. */
3946 if (entry->privfd && entry->fd_entry == 0)
3947 {
3948 if (dinfo->got17m4.fdplt)
3949 {
3950 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
3951 dinfo->got17m4.fdplt -= 8;
3952 }
3953 else
3954 {
3955 BFD_ASSERT (dinfo->gothilo.fdplt);
3956 entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
3957 dinfo->gothilo.fdplt -= 8;
3958 }
3959 }
3960
3961 if (entry->plt)
3962 {
3963 int size;
3964
3965 /* We use the section's raw size to mark the location of the
3966 next PLT entry. */
3967 entry->plt_entry = bfinfdpic_plt_section (dinfo->g.info)->size;
3968
3969 /* Figure out the length of this PLT entry based on the
3970 addressing mode we need to reach the function descriptor. */
3971 BFD_ASSERT (entry->fd_entry);
3972 if (entry->fd_entry >= -(1 << (18 - 1))
3973 && entry->fd_entry + 4 < (1 << (18 - 1)))
3974 size = 10;
3975 else
3976 size = 16;
3977
3978 bfinfdpic_plt_section (dinfo->g.info)->size += size;
3979 }
3980
3981 if (entry->lazyplt)
3982 {
3983 entry->lzplt_entry = dinfo->g.lzplt;
3984 dinfo->g.lzplt += LZPLT_NORMAL_SIZE;
3985 /* If this entry is the one that gets the resolver stub, account
3986 for the additional instruction. */
3987 if (entry->lzplt_entry % BFINFDPIC_LZPLT_BLOCK_SIZE
3988 == BFINFDPIC_LZPLT_RESOLV_LOC)
3989 dinfo->g.lzplt += LZPLT_RESOLVER_EXTRA;
3990 }
3991
3992 return 1;
3993}
3994
6a9adeca
BS		 3995/* Cancel out any effects of calling _bfinfdpic_assign_got_entries and
3996 _bfinfdpic_assign_plt_entries. */
3997
3998static int
3999_bfinfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
4000{
4001 struct bfinfdpic_relocs_info *entry = *entryp;
4002
4003 entry->got_entry = 0;
4004 entry->fdgot_entry = 0;
4005 entry->fd_entry = 0;
4006 entry->plt_entry = (bfd_vma)-1;
4007 entry->lzplt_entry = (bfd_vma)-1;
4008
4009 return 1;
4010}
4011
48d502e1
BS		 4012/* Follow indirect and warning hash entries so that each got entry
4013 points to the final symbol definition. P must point to a pointer
4014 to the hash table we're traversing. Since this traversal may
4015 modify the hash table, we set this pointer to NULL to indicate
4016 we've made a potentially-destructive change to the hash table, so
4017 the traversal must be restarted. */
4018static int
4019_bfinfdpic_resolve_final_relocs_info (void **entryp, void *p)
4020{
4021 struct bfinfdpic_relocs_info *entry = *entryp;
4022 htab_t *htab = p;
4023
4024 if (entry->symndx == -1)
4025 {
4026 struct elf_link_hash_entry *h = entry->d.h;
4027 struct bfinfdpic_relocs_info *oentry;
4028
4029 while (h->root.type == bfd_link_hash_indirect
4030 || h->root.type == bfd_link_hash_warning)
4031 h = (struct elf_link_hash_entry *)h->root.u.i.link;
4032
4033 if (entry->d.h == h)
4034 return 1;
4035
4036 oentry = bfinfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
4037 NO_INSERT);
4038
4039 if (oentry)
4040 {
4041 /* Merge the two entries. */
4042 bfinfdpic_pic_merge_early_relocs_info (oentry, entry);
4043 htab_clear_slot (*htab, entryp);
4044 return 1;
4045 }
4046
4047 entry->d.h = h;
4048
4049 /* If we can't find this entry with the new bfd hash, re-insert
4050 it, and get the traversal restarted. */
4051 if (! htab_find (*htab, entry))
4052 {
4053 htab_clear_slot (*htab, entryp);
4054 entryp = htab_find_slot (*htab, entry, INSERT);
4055 if (! *entryp)
4056 *entryp = entry;
4057 /* Abort the traversal, since the whole table may have
4058 moved, and leave it up to the parent to restart the
4059 process. */
4060 *(htab_t *)p = NULL;
4061 return 0;
4062 }
4063 }
4064
4065 return 1;
4066}
4067
6a9adeca
BS		 4068/* Compute the total size of the GOT, the PLT, the dynamic relocations
4069 section and the rofixup section. Assign locations for GOT and PLT
4070 entries. */
48d502e1
BS		 4071
4072static bfd_boolean
6a9adeca
BS		 4073_bfinfdpic_size_got_plt (bfd *output_bfd,
4074 struct _bfinfdpic_dynamic_got_plt_info *gpinfop)
48d502e1 4075{
48d502e1
BS		 4076 bfd_signed_vma odd;
4077 bfd_vma limit;
6a9adeca
BS		 4078 struct bfd_link_info *info = gpinfop->g.info;
4079 bfd *dynobj = elf_hash_table (info)->dynobj;
48d502e1 4080
6a9adeca
BS		 4081 memcpy (bfinfdpic_dynamic_got_plt_info (info), &gpinfop->g,
4082 sizeof (gpinfop->g));
48d502e1
BS		 4083
4084 odd = 12;
4085 /* Compute the total size taken by entries in the 18-bit range,
4086 to tell how many PLT function descriptors we can bring into it
4087 without causing it to overflow. */
6a9adeca 4088 limit = odd + gpinfop->g.got17m4 + gpinfop->g.fd17m4;
48d502e1
BS		 4089 if (limit < (bfd_vma)1 << 18)
4090 limit = ((bfd_vma)1 << 18) - limit;
4091 else
4092 limit = 0;
6a9adeca
BS		 4093 if (gpinfop->g.fdplt < limit)
4094 limit = gpinfop->g.fdplt;
48d502e1
BS		 4095
4096 /* Determine the ranges of GOT offsets that we can use for each
4097 range of addressing modes. */
6a9adeca 4098 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->got17m4,
48d502e1
BS		 4099 0,
4100 odd,
4101 16,
6a9adeca
BS		 4102 gpinfop->g.got17m4,
4103 gpinfop->g.fd17m4,
48d502e1
BS		 4104 limit,
4105 (bfd_vma)1 << (18-1));
6a9adeca
BS		 4106 odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->gothilo,
4107 gpinfop->got17m4.min,
48d502e1 4108 odd,
6a9adeca
BS		 4109 gpinfop->got17m4.max,
4110 gpinfop->g.gothilo,
4111 gpinfop->g.fdhilo,
4112 gpinfop->g.fdplt - gpinfop->got17m4.fdplt,
48d502e1
BS		 4113 (bfd_vma)1 << (32-1));
4114
4115 /* Now assign (most) GOT offsets. */
4116 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_got_entries,
6a9adeca 4117 gpinfop);
48d502e1 4118
6a9adeca
BS		 4119 bfinfdpic_got_section (info)->size = gpinfop->gothilo.max
4120 - gpinfop->gothilo.min
48d502e1
BS		 4121 /* If an odd word is the last word of the GOT, we don't need this
4122 word to be part of the GOT. */
6a9adeca 4123 - (odd + 4 == gpinfop->gothilo.max ? 4 : 0);
48d502e1
BS		 4124 if (bfinfdpic_got_section (info)->size == 0)
4125 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
4126 else if (bfinfdpic_got_section (info)->size == 12
4127 && ! elf_hash_table (info)->dynamic_sections_created)
4128 {
4129 bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
4130 bfinfdpic_got_section (info)->size = 0;
4131 }
4132 else
4133 {
4134 bfinfdpic_got_section (info)->contents =
4135 (bfd_byte *) bfd_zalloc (dynobj,
4136 bfinfdpic_got_section (info)->size);
4137 if (bfinfdpic_got_section (info)->contents == NULL)
4138 return FALSE;
4139 }
4140
4141 if (elf_hash_table (info)->dynamic_sections_created)
4142 /* Subtract the number of lzplt entries, since those will generate
4143 relocations in the pltrel section. */
4144 bfinfdpic_gotrel_section (info)->size =
6a9adeca 4145 (gpinfop->g.relocs - gpinfop->g.lzplt / LZPLT_NORMAL_SIZE)
48d502e1
BS		 4146 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
4147 else
6a9adeca 4148 BFD_ASSERT (gpinfop->g.relocs == 0);
48d502e1
BS		 4149 if (bfinfdpic_gotrel_section (info)->size == 0)
4150 bfinfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
4151 else
4152 {
4153 bfinfdpic_gotrel_section (info)->contents =
4154 (bfd_byte *) bfd_zalloc (dynobj,
4155 bfinfdpic_gotrel_section (info)->size);
4156 if (bfinfdpic_gotrel_section (info)->contents == NULL)
4157 return FALSE;
4158 }
4159
6a9adeca 4160 bfinfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
48d502e1
BS		 4161 if (bfinfdpic_gotfixup_section (info)->size == 0)
4162 bfinfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
4163 else
4164 {
4165 bfinfdpic_gotfixup_section (info)->contents =
4166 (bfd_byte *) bfd_zalloc (dynobj,
4167 bfinfdpic_gotfixup_section (info)->size);
4168 if (bfinfdpic_gotfixup_section (info)->contents == NULL)
4169 return FALSE;
4170 }
4171
4172 if (elf_hash_table (info)->dynamic_sections_created)
d3e32c2e
JZ		 4173 bfinfdpic_pltrel_section (info)->size =
4174 gpinfop->g.lzplt / LZPLT_NORMAL_SIZE * get_elf_backend_data (output_bfd)->s->sizeof_rel;
4175 if (bfinfdpic_pltrel_section (info)->size == 0)
4176 bfinfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
4177 else
48d502e1 4178 {
d3e32c2e
JZ		 4179 bfinfdpic_pltrel_section (info)->contents =
4180 (bfd_byte *) bfd_zalloc (dynobj,
4181 bfinfdpic_pltrel_section (info)->size);
4182 if (bfinfdpic_pltrel_section (info)->contents == NULL)
4183 return FALSE;
48d502e1
BS		 4184 }
4185
4186 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
4187 such that there's room for the additional instruction needed to
4188 call the resolver. Since _bfinfdpic_assign_got_entries didn't
4189 account for them, our block size is 4 bytes smaller than the real
4190 block size. */
4191 if (elf_hash_table (info)->dynamic_sections_created)
4192 {
6a9adeca
BS		 4193 bfinfdpic_plt_section (info)->size = gpinfop->g.lzplt
4194 + ((gpinfop->g.lzplt + (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) - LZPLT_NORMAL_SIZE)
48d502e1
BS		 4195 / (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) * LZPLT_RESOLVER_EXTRA);
4196 }
4197
4198 /* Reset it, such that _bfinfdpic_assign_plt_entries() can use it to
4199 actually assign lazy PLT entries addresses. */
6a9adeca 4200 gpinfop->g.lzplt = 0;
48d502e1
BS		 4201
4202 /* Save information that we're going to need to generate GOT and PLT
4203 entries. */
6a9adeca 4204 bfinfdpic_got_initial_offset (info) = -gpinfop->gothilo.min;
48d502e1
BS		 4205
4206 if (get_elf_backend_data (output_bfd)->want_got_sym)
4207 elf_hash_table (info)->hgot->root.u.def.value
6a9adeca 4208 = bfinfdpic_got_initial_offset (info);
48d502e1
BS		 4209
4210 if (elf_hash_table (info)->dynamic_sections_created)
4211 bfinfdpic_plt_initial_offset (info) =
4212 bfinfdpic_plt_section (info)->size;
4213
4214 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_plt_entries,
6a9adeca 4215 gpinfop);
48d502e1
BS		 4216
4217 /* Allocate the PLT section contents only after
4218 _bfinfdpic_assign_plt_entries has a chance to add the size of the
4219 non-lazy PLT entries. */
d3e32c2e
JZ		 4220 if (bfinfdpic_plt_section (info)->size == 0)
4221 bfinfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
4222 else
48d502e1 4223 {
d3e32c2e
JZ		 4224 bfinfdpic_plt_section (info)->contents =
4225 (bfd_byte *) bfd_zalloc (dynobj,
4226 bfinfdpic_plt_section (info)->size);
4227 if (bfinfdpic_plt_section (info)->contents == NULL)
4228 return FALSE;
48d502e1
BS		 4229 }
4230
6a9adeca
BS		 4231 return TRUE;
4232}
4233
4234/* Set the sizes of the dynamic sections. */
4235
4236static bfd_boolean
4237elf32_bfinfdpic_size_dynamic_sections (bfd *output_bfd,
4238 struct bfd_link_info *info)
4239{
4240 struct elf_link_hash_table *htab;
4241 bfd *dynobj;
4242 asection *s;
4243 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4244
4245 htab = elf_hash_table (info);
4246 dynobj = htab->dynobj;
4247 BFD_ASSERT (dynobj != NULL);
4248
4249 if (htab->dynamic_sections_created)
4250 {
4251 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 4252 if (bfd_link_executable (info) && !info->nointerp)
6a9adeca 4253 {
3d4d4302 4254 s = bfd_get_linker_section (dynobj, ".interp");
6a9adeca
BS		 4255 BFD_ASSERT (s != NULL);
4256 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4257 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
4258 }
4259 }
4260
4261 memset (&gpinfo, 0, sizeof (gpinfo));
4262 gpinfo.g.info = info;
4263
4264 for (;;)
4265 {
4266 htab_t relocs = bfinfdpic_relocs_info (info);
4267
4268 htab_traverse (relocs, _bfinfdpic_resolve_final_relocs_info, &relocs);
4269
4270 if (relocs == bfinfdpic_relocs_info (info))
4271 break;
4272 }
4273
4274 htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_count_got_plt_entries,
4275 &gpinfo.g);
4276
4277 /* Allocate space to save the summary information, we're going to
4278 use it if we're doing relaxations. */
4279 bfinfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
4280
4281 if (!_bfinfdpic_size_got_plt (output_bfd, &gpinfo))
4282 return FALSE;
4283
48d502e1
BS		 4284 if (elf_hash_table (info)->dynamic_sections_created)
4285 {
4286 if (bfinfdpic_got_section (info)->size)
4287 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
4288 return FALSE;
4289
4290 if (bfinfdpic_pltrel_section (info)->size)
4291 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
4292 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
4293 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
4294 return FALSE;
4295
4296 if (bfinfdpic_gotrel_section (info)->size)
4297 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
4298 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
4299 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
4300 sizeof (Elf32_External_Rel)))
4301 return FALSE;
4302 }
4303
3d4d4302 4304 s = bfd_get_linker_section (dynobj, ".dynbss");
153d38f6
JZ		 4305 if (s && s->size == 0)
4306 s->flags |= SEC_EXCLUDE;
4307
3d4d4302 4308 s = bfd_get_linker_section (dynobj, ".rela.bss");
153d38f6
JZ		 4309 if (s && s->size == 0)
4310 s->flags |= SEC_EXCLUDE;
4311
48d502e1
BS		 4312 return TRUE;
4313}
4314
4315static bfd_boolean
4316elf32_bfinfdpic_always_size_sections (bfd *output_bfd,
4317 struct bfd_link_info *info)
4318{
0e1862bb 4319 if (!bfd_link_relocatable (info)
04c3a755
NS		 4320 && !bfd_elf_stack_segment_size (output_bfd, info,
4321 "__stacksize", DEFAULT_STACK_SIZE))
4322 return FALSE;
48d502e1
BS		 4323
4324 return TRUE;
4325}
4326
6a9adeca
BS		 4327/* Check whether any of the relocations was optimized away, and
4328 subtract it from the relocation or fixup count. */
4329static bfd_boolean
4330_bfinfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
2c3fc389
NC		 4331 struct bfd_link_info *info,
4332 bfd_boolean *changed)
6a9adeca
BS		 4333{
4334 Elf_Internal_Shdr *symtab_hdr;
4335 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4336 Elf_Internal_Rela *rel, *erel;
4337
4338 if ((sec->flags & SEC_RELOC) == 0
4339 || sec->reloc_count == 0)
4340 return TRUE;
4341
4342 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4343 sym_hashes = elf_sym_hashes (abfd);
4344 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
4345 if (!elf_bad_symtab (abfd))
4346 sym_hashes_end -= symtab_hdr->sh_info;
4347
4348 rel = elf_section_data (sec)->relocs;
4349
4350 /* Now examine each relocation. */
4351 for (erel = rel + sec->reloc_count; rel < erel; rel++)
4352 {
4353 struct elf_link_hash_entry *h;
4354 unsigned long r_symndx;
4355 struct bfinfdpic_relocs_info *picrel;
4356 struct _bfinfdpic_dynamic_got_info *dinfo;
4357
4358 if (ELF32_R_TYPE (rel->r_info) != R_BFIN_BYTE4_DATA
4359 && ELF32_R_TYPE (rel->r_info) != R_BFIN_FUNCDESC)
4360 continue;
4361
4362 if (_bfd_elf_section_offset (sec->output_section->owner,
4363 info, sec, rel->r_offset)
4364 != (bfd_vma)-1)
4365 continue;
4366
4367 r_symndx = ELF32_R_SYM (rel->r_info);
4368 if (r_symndx < symtab_hdr->sh_info)
4369 h = NULL;
4370 else
4371 {
4372 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4373 while (h->root.type == bfd_link_hash_indirect
4374 || h->root.type == bfd_link_hash_warning)
4375 h = (struct elf_link_hash_entry *)h->root.u.i.link;
4376 }
4377
4378 if (h != NULL)
4379 picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4380 abfd, h,
4381 rel->r_addend, NO_INSERT);
4382 else
4383 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info (info),
4384 abfd, r_symndx,
4385 rel->r_addend, NO_INSERT);
4386
4387 if (! picrel)
4388 return FALSE;
4389
4390 *changed = TRUE;
4391 dinfo = bfinfdpic_dynamic_got_plt_info (info);
4392
4393 _bfinfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
4394 if (ELF32_R_TYPE (rel->r_info) == R_BFIN_BYTE4_DATA)
4395 picrel->relocs32--;
4396 else /* we know (ELF32_R_TYPE (rel->r_info) == R_BFIN_FUNCDESC) */
4397 picrel->relocsfd--;
4398 _bfinfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
4399 }
4400
4401 return TRUE;
4402}
4403
4404static bfd_boolean
4405bfinfdpic_elf_discard_info (bfd *ibfd,
4406 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
4407 struct bfd_link_info *info)
4408{
4409 bfd_boolean changed = FALSE;
4410 asection *s;
4411 bfd *obfd = NULL;
4412
4413 /* Account for relaxation of .eh_frame section. */
4414 for (s = ibfd->sections; s; s = s->next)
dbaa2011 4415 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
6a9adeca
BS		 4416 {
4417 if (!_bfinfdpic_check_discarded_relocs (ibfd, s, info, &changed))
4418 return FALSE;
4419 obfd = s->output_section->owner;
4420 }
4421
4422 if (changed)
4423 {
4424 struct _bfinfdpic_dynamic_got_plt_info gpinfo;
4425
4426 memset (&gpinfo, 0, sizeof (gpinfo));
4427 memcpy (&gpinfo.g, bfinfdpic_dynamic_got_plt_info (info),
4428 sizeof (gpinfo.g));
4429
4430 /* Clear GOT and PLT assignments. */
4431 htab_traverse (bfinfdpic_relocs_info (info),
4432 _bfinfdpic_reset_got_plt_entries,
4433 NULL);
4434
4435 if (!_bfinfdpic_size_got_plt (obfd, &gpinfo))
4436 return FALSE;
4437 }
4438
4439 return TRUE;
4440}
4441
48d502e1
BS		 4442static bfd_boolean
4443elf32_bfinfdpic_finish_dynamic_sections (bfd *output_bfd,
4444 struct bfd_link_info *info)
4445{
4446 bfd *dynobj;
4447 asection *sdyn;
4448
4449 dynobj = elf_hash_table (info)->dynobj;
4450
4451 if (bfinfdpic_got_section (info))
4452 {
4453 BFD_ASSERT (bfinfdpic_gotrel_section (info)->size
ed3056eb
NC		 4454 /* PR 17334: It appears that the GOT section can end up
4455 being bigger than the number of relocs. Presumably
4456 because some relocs have been deleted. A test case has
4457 yet to be generated for verify this, but in the meantime
4458 the test below has been changed from == to >= so that
4459 applications can continue to be built. */
4460 >= (bfinfdpic_gotrel_section (info)->reloc_count
48d502e1
BS		 4461 * sizeof (Elf32_External_Rel)));
4462
4463 if (bfinfdpic_gotfixup_section (info))
4464 {
4465 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
4466 bfd_vma got_value = hgot->root.u.def.value
4467 + hgot->root.u.def.section->output_section->vma
4468 + hgot->root.u.def.section->output_offset;
4469
4470 _bfinfdpic_add_rofixup (output_bfd, bfinfdpic_gotfixup_section (info),
4471 got_value, 0);
4472
4473 if (bfinfdpic_gotfixup_section (info)->size
4474 != (bfinfdpic_gotfixup_section (info)->reloc_count * 4))
0f64bb02
CM		 4475 {
4476 (*_bfd_error_handler)
48d502e1 4477 ("LINKER BUG: .rofixup section size mismatch");
0f64bb02
CM		 4478 return FALSE;
4479 }
4480 }
4481 }
48d502e1
BS		 4482 if (elf_hash_table (info)->dynamic_sections_created)
4483 {
4484 BFD_ASSERT (bfinfdpic_pltrel_section (info)->size
4485 == (bfinfdpic_pltrel_section (info)->reloc_count
4486 * sizeof (Elf32_External_Rel)));
4487 }
4488
3d4d4302 4489 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
48d502e1
BS		 4490
4491 if (elf_hash_table (info)->dynamic_sections_created)
4492 {
4493 Elf32_External_Dyn * dyncon;
4494 Elf32_External_Dyn * dynconend;
4495
4496 BFD_ASSERT (sdyn != NULL);
4497
4498 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4499 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4500
4501 for (; dyncon < dynconend; dyncon++)
4502 {
4503 Elf_Internal_Dyn dyn;
4504
4505 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4506
4507 switch (dyn.d_tag)
4508 {
4509 default:
4510 break;
4511
4512 case DT_PLTGOT:
4513 dyn.d_un.d_ptr = bfinfdpic_got_section (info)->output_section->vma
4514 + bfinfdpic_got_section (info)->output_offset
4515 + bfinfdpic_got_initial_offset (info);
4516 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4517 break;
4518
4519 case DT_JMPREL:
4520 dyn.d_un.d_ptr = bfinfdpic_pltrel_section (info)
4521 ->output_section->vma
4522 + bfinfdpic_pltrel_section (info)->output_offset;
4523 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4524 break;
4525
4526 case DT_PLTRELSZ:
4527 dyn.d_un.d_val = bfinfdpic_pltrel_section (info)->size;
4528 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4529 break;
4530 }
4531 }
4532 }
4533
4534 return TRUE;
4535}
4536
4537/* Adjust a symbol defined by a dynamic object and referenced by a
4538 regular object. */
4539
4540static bfd_boolean
2c3fc389
NC		 4541elf32_bfinfdpic_adjust_dynamic_symbol (struct bfd_link_info *info,
4542 struct elf_link_hash_entry *h)
48d502e1
BS		 4543{
4544 bfd * dynobj;
4545
4546 dynobj = elf_hash_table (info)->dynobj;
4547
4548 /* Make sure we know what is going on here. */
4549 BFD_ASSERT (dynobj != NULL
4550 && (h->u.weakdef != NULL
4551 || (h->def_dynamic
4552 && h->ref_regular
4553 && !h->def_regular)));
4554
4555 /* If this is a weak symbol, and there is a real definition, the
4556 processor independent code will have arranged for us to see the
4557 real definition first, and we can just use the same value. */
4558 if (h->u.weakdef != NULL)
4559 {
4560 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4561 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4562 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4563 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4564 }
0f64bb02
CM		 4565
4566 return TRUE;
4567}
4568
48d502e1
BS		 4569/* Perform any actions needed for dynamic symbols. */
4570
4571static bfd_boolean
4572elf32_bfinfdpic_finish_dynamic_symbol
4573(bfd *output_bfd ATTRIBUTE_UNUSED,
4574 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4575 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
4576 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
0f64bb02 4577{
48d502e1
BS		 4578 return TRUE;
4579}
0f64bb02 4580
48d502e1
BS		 4581/* Decide whether to attempt to turn absptr or lsda encodings in
4582 shared libraries into pcrel within the given input section. */
0f64bb02 4583
48d502e1
BS		 4584static bfd_boolean
4585bfinfdpic_elf_use_relative_eh_frame
4586(bfd *input_bfd ATTRIBUTE_UNUSED,
4587 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4588 asection *eh_frame_section ATTRIBUTE_UNUSED)
4589{
4590 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
4591 return FALSE;
4592}
0f64bb02 4593
48d502e1 4594/* Adjust the contents of an eh_frame_hdr section before they're output. */
0f64bb02 4595
48d502e1
BS		 4596static bfd_byte
4597bfinfdpic_elf_encode_eh_address (bfd *abfd,
4598 struct bfd_link_info *info,
4599 asection *osec, bfd_vma offset,
4600 asection *loc_sec, bfd_vma loc_offset,
4601 bfd_vma *encoded)
4602{
4603 struct elf_link_hash_entry *h;
0f64bb02 4604
48d502e1
BS		 4605 h = elf_hash_table (info)->hgot;
4606 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
4607
4608 if (! h || (_bfinfdpic_osec_to_segment (abfd, osec)
4609 == _bfinfdpic_osec_to_segment (abfd, loc_sec->output_section)))
4610 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
4611 loc_sec, loc_offset, encoded);
4612
4613 BFD_ASSERT (_bfinfdpic_osec_to_segment (abfd, osec)
4614 == (_bfinfdpic_osec_to_segment
4615 (abfd, h->root.u.def.section->output_section)));
4616
4617 *encoded = osec->vma + offset
4618 - (h->root.u.def.value
4619 + h->root.u.def.section->output_section->vma
4620 + h->root.u.def.section->output_offset);
4621
4622 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
0f64bb02
CM		 4623}
4624
4625
48d502e1
BS		 4626
4627/* Look through the relocs for a section during the first phase.
4628
4629 Besides handling virtual table relocs for gc, we have to deal with
4630 all sorts of PIC-related relocations. We describe below the
4631 general plan on how to handle such relocations, even though we only
4632 collect information at this point, storing them in hash tables for
4633 perusal of later passes.
4634
4635 32 relocations are propagated to the linker output when creating
4636 position-independent output. LO16 and HI16 relocations are not
4637 supposed to be encountered in this case.
4638
4639 LABEL16 should always be resolvable by the linker, since it's only
4640 used by branches.
4641
4642 LABEL24, on the other hand, is used by calls. If it turns out that
4643 the target of a call is a dynamic symbol, a PLT entry must be
4644 created for it, which triggers the creation of a private function
4645 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
4646
4647 GPREL relocations require the referenced symbol to be in the same
4648 segment as _gp, but this can only be checked later.
4649
4650 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
4651 exist. LABEL24 might as well, since it may require a PLT entry,
4652 that will require a got.
4653
4654 Non-FUNCDESC GOT relocations require a GOT entry to be created
4655 regardless of whether the symbol is dynamic. However, since a
4656 global symbol that turns out to not be exported may have the same
4657 address of a non-dynamic symbol, we don't assign GOT entries at
4658 this point, such that we can share them in this case. A relocation
4659 for the GOT entry always has to be created, be it to offset a
4660 private symbol by the section load address, be it to get the symbol
4661 resolved dynamically.
4662
4663 FUNCDESC GOT relocations require a GOT entry to be created, and
4664 handled as if a FUNCDESC relocation was applied to the GOT entry in
4665 an object file.
4666
4667 FUNCDESC relocations referencing a symbol that turns out to NOT be
4668 dynamic cause a private function descriptor to be created. The
4669 FUNCDESC relocation then decays to a 32 relocation that points at
4670 the private descriptor. If the symbol is dynamic, the FUNCDESC
4671 relocation is propagated to the linker output, such that the
4672 dynamic linker creates the canonical descriptor, pointing to the
4673 dynamically-resolved definition of the function.
4674
4675 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
4676 symbols that are assigned to the same segment as the GOT, but we
4677 can only check this later, after we know the complete set of
4678 symbols defined and/or exported.
4679
4680 FUNCDESC GOTOFF relocations require a function descriptor to be
4681 created and, unless lazy binding is disabled or the symbol is not
4682 dynamic, a lazy PLT entry. Since we can't tell at this point
4683 whether a symbol is going to be dynamic, we have to decide later
4684 whether to create a lazy PLT entry or bind the descriptor directly
4685 to the private function.
4686
4687 FUNCDESC_VALUE relocations are not supposed to be present in object
4688 files, but they may very well be simply propagated to the linker
4689 output, since they have no side effect.
4690
4691
4692 A function descriptor always requires a FUNCDESC_VALUE relocation.
4693 Whether it's in .plt.rel or not depends on whether lazy binding is
4694 enabled and on whether the referenced symbol is dynamic.
4695
4696 The existence of a lazy PLT requires the resolverStub lazy PLT
4697 entry to be present.
4698
4699
4700 As for assignment of GOT, PLT and lazy PLT entries, and private
4701 descriptors, we might do them all sequentially, but we can do
4702 better than that. For example, we can place GOT entries and
4703 private function descriptors referenced using 12-bit operands
4704 closer to the PIC register value, such that these relocations don't
4705 overflow. Those that are only referenced with LO16 relocations
4706 could come next, but we may as well place PLT-required function
4707 descriptors in the 12-bit range to make them shorter. Symbols
4708 referenced with LO16/HI16 may come next, but we may place
4709 additional function descriptors in the 16-bit range if we can
4710 reliably tell that we've already placed entries that are ever
4711 referenced with only LO16. PLT entries are therefore generated as
4712 small as possible, while not introducing relocation overflows in
4713 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
4714 generated before or after PLT entries, but not intermingled with
4715 them, such that we can have more lazy PLT entries in range for a
4716 branch to the resolverStub. The resolverStub should be emitted at
4717 the most distant location from the first lazy PLT entry such that
4718 it's still in range for a branch, or closer, if there isn't a need
4719 for so many lazy PLT entries. Additional lazy PLT entries may be
4720 emitted after the resolverStub, as long as branches are still in
4721 range. If the branch goes out of range, longer lazy PLT entries
4722 are emitted.
4723
4724 We could further optimize PLT and lazy PLT entries by giving them
4725 priority in assignment to closer-to-gr17 locations depending on the
4726 number of occurrences of references to them (assuming a function
4727 that's called more often is more important for performance, so its
4728 PLT entry should be faster), or taking hints from the compiler.
4729 Given infinite time and money... :-) */
0f64bb02
CM		 4730
4731static bfd_boolean
48d502e1
BS		 4732bfinfdpic_check_relocs (bfd *abfd, struct bfd_link_info *info,
4733 asection *sec, const Elf_Internal_Rela *relocs)
0f64bb02
CM		 4734{
4735 Elf_Internal_Shdr *symtab_hdr;
5582a088 4736 struct elf_link_hash_entry **sym_hashes;
48d502e1
BS		 4737 const Elf_Internal_Rela *rel;
4738 const Elf_Internal_Rela *rel_end;
0f64bb02 4739 bfd *dynobj;
48d502e1 4740 struct bfinfdpic_relocs_info *picrel;
0f64bb02 4741
0e1862bb 4742 if (bfd_link_relocatable (info))
0f64bb02
CM		 4743 return TRUE;
4744
4745 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4746 sym_hashes = elf_sym_hashes (abfd);
0f64bb02 4747
48d502e1
BS		 4748 dynobj = elf_hash_table (info)->dynobj;
4749 rel_end = relocs + sec->reloc_count;
4750 for (rel = relocs; rel < rel_end; rel++)
0f64bb02 4751 {
0f64bb02 4752 struct elf_link_hash_entry *h;
48d502e1
BS		 4753 unsigned long r_symndx;
4754
4755 r_symndx = ELF32_R_SYM (rel->r_info);
4756 if (r_symndx < symtab_hdr->sh_info)
4757 h = NULL;
4758 else
4759 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
0f64bb02
CM		 4760
4761 switch (ELF32_R_TYPE (rel->r_info))
4762 {
48d502e1
BS		 4763 case R_BFIN_GOT17M4:
4764 case R_BFIN_GOTHI:
4765 case R_BFIN_GOTLO:
4766 case R_BFIN_FUNCDESC_GOT17M4:
4767 case R_BFIN_FUNCDESC_GOTHI:
4768 case R_BFIN_FUNCDESC_GOTLO:
4769 case R_BFIN_GOTOFF17M4:
4770 case R_BFIN_GOTOFFHI:
4771 case R_BFIN_GOTOFFLO:
4772 case R_BFIN_FUNCDESC_GOTOFF17M4:
4773 case R_BFIN_FUNCDESC_GOTOFFHI:
4774 case R_BFIN_FUNCDESC_GOTOFFLO:
4775 case R_BFIN_FUNCDESC:
4776 case R_BFIN_FUNCDESC_VALUE:
4777 if (! IS_FDPIC (abfd))
4778 goto bad_reloc;
4779 /* Fall through. */
cb88ce9f
BS		 4780 case R_BFIN_PCREL24:
4781 case R_BFIN_PCREL24_JUMP_L:
4782 case R_BFIN_BYTE4_DATA:
48d502e1 4783 if (IS_FDPIC (abfd) && ! dynobj)
0f64bb02 4784 {
48d502e1
BS		 4785 elf_hash_table (info)->dynobj = dynobj = abfd;
4786 if (! _bfin_create_got_section (abfd, info))
4787 return FALSE;
0f64bb02 4788 }
48d502e1 4789 if (! IS_FDPIC (abfd))
0f64bb02 4790 {
48d502e1
BS		 4791 picrel = NULL;
4792 break;
4793 }
4794 if (h != NULL)
4795 {
4796 if (h->dynindx == -1)
4797 switch (ELF_ST_VISIBILITY (h->other))
4798 {
4799 case STV_INTERNAL:
4800 case STV_HIDDEN:
4801 break;
4802 default:
4803 bfd_elf_link_record_dynamic_symbol (info, h);
4804 break;
4805 }
4806 picrel
4807 = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
4808 abfd, h,
4809 rel->r_addend, INSERT);
0f64bb02 4810 }
48d502e1
BS		 4811 else
4812 picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
4813 (info), abfd, r_symndx,
4814 rel->r_addend, INSERT);
4815 if (! picrel)
4816 return FALSE;
0f64bb02 4817 break;
48d502e1 4818
0f64bb02 4819 default:
48d502e1 4820 picrel = NULL;
0f64bb02
CM		 4821 break;
4822 }
48d502e1
BS		 4823
4824 switch (ELF32_R_TYPE (rel->r_info))
4825 {
cb88ce9f
BS		 4826 case R_BFIN_PCREL24:
4827 case R_BFIN_PCREL24_JUMP_L:
48d502e1 4828 if (IS_FDPIC (abfd))
2774f1a6 4829 picrel->call++;
48d502e1
BS		 4830 break;
4831
4832 case R_BFIN_FUNCDESC_VALUE:
4833 picrel->relocsfdv++;
4834 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4835 picrel->relocs32--;
4836 /* Fall through. */
4837
cb88ce9f 4838 case R_BFIN_BYTE4_DATA:
48d502e1
BS		 4839 if (! IS_FDPIC (abfd))
4840 break;
4841
2774f1a6 4842 picrel->sym++;
48d502e1
BS		 4843 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4844 picrel->relocs32++;
4845 break;
4846
4847 case R_BFIN_GOT17M4:
2774f1a6 4848 picrel->got17m4++;
48d502e1
BS		 4849 break;
4850
4851 case R_BFIN_GOTHI:
4852 case R_BFIN_GOTLO:
2774f1a6 4853 picrel->gothilo++;
48d502e1
BS		 4854 break;
4855
4856 case R_BFIN_FUNCDESC_GOT17M4:
2774f1a6 4857 picrel->fdgot17m4++;
48d502e1
BS		 4858 break;
4859
4860 case R_BFIN_FUNCDESC_GOTHI:
4861 case R_BFIN_FUNCDESC_GOTLO:
2774f1a6 4862 picrel->fdgothilo++;
48d502e1
BS		 4863 break;
4864
4865 case R_BFIN_GOTOFF17M4:
4866 case R_BFIN_GOTOFFHI:
4867 case R_BFIN_GOTOFFLO:
2774f1a6 4868 picrel->gotoff++;
48d502e1
BS		 4869 break;
4870
4871 case R_BFIN_FUNCDESC_GOTOFF17M4:
2774f1a6 4872 picrel->fdgoff17m4++;
48d502e1
BS		 4873 break;
4874
4875 case R_BFIN_FUNCDESC_GOTOFFHI:
4876 case R_BFIN_FUNCDESC_GOTOFFLO:
2774f1a6 4877 picrel->fdgoffhilo++;
48d502e1
BS		 4878 break;
4879
4880 case R_BFIN_FUNCDESC:
2774f1a6 4881 picrel->fd++;
48d502e1
BS		 4882 picrel->relocsfd++;
4883 break;
4884
4885 /* This relocation describes the C++ object vtable hierarchy.
4886 Reconstruct it for later use during GC. */
4887 case R_BFIN_GNU_VTINHERIT:
4888 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4889 return FALSE;
4890 break;
4891
4892 /* This relocation describes which C++ vtable entries are actually
4893 used. Record for later use during GC. */
4894 case R_BFIN_GNU_VTENTRY:
d17e0c6e
JB		 4895 BFD_ASSERT (h != NULL);
4896 if (h != NULL
4897 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
48d502e1
BS		 4898 return FALSE;
4899 break;
4900
cb88ce9f
BS		 4901 case R_BFIN_HUIMM16:
4902 case R_BFIN_LUIMM16:
4903 case R_BFIN_PCREL12_JUMP_S:
4904 case R_BFIN_PCREL10:
48d502e1
BS		 4905 break;
4906
4907 default:
4908 bad_reloc:
4909 (*_bfd_error_handler)
4910 (_("%B: unsupported relocation type %i"),
4911 abfd, ELF32_R_TYPE (rel->r_info));
4912 return FALSE;
4913 }
0f64bb02
CM		 4914 }
4915
4916 return TRUE;
4917}
4918
48d502e1
BS		 4919/* Set the right machine number for a Blackfin ELF file. */
4920
4921static bfd_boolean
4922elf32_bfin_object_p (bfd *abfd)
4923{
4924 bfd_default_set_arch_mach (abfd, bfd_arch_bfin, 0);
4925 return (((elf_elfheader (abfd)->e_flags & EF_BFIN_FDPIC) != 0)
4926 == (IS_FDPIC (abfd)));
4927}
0f64bb02 4928
0f64bb02 4929static bfd_boolean
48d502e1 4930elf32_bfin_set_private_flags (bfd * abfd, flagword flags)
0f64bb02 4931{
48d502e1
BS		 4932 elf_elfheader (abfd)->e_flags = flags;
4933 elf_flags_init (abfd) = TRUE;
4934 return TRUE;
4935}
0f64bb02 4936
0f64bb02
CM		 4937/* Display the flags field. */
4938static bfd_boolean
2c3fc389 4939elf32_bfin_print_private_bfd_data (bfd * abfd, void * ptr)
0f64bb02
CM		 4940{
4941 FILE *file = (FILE *) ptr;
48d502e1 4942 flagword flags;
0f64bb02
CM		 4943
4944 BFD_ASSERT (abfd != NULL && ptr != NULL);
4945
4946 /* Print normal ELF private data. */
4947 _bfd_elf_print_private_bfd_data (abfd, ptr);
4948
48d502e1 4949 flags = elf_elfheader (abfd)->e_flags;
0f64bb02
CM		 4950
4951 /* xgettext:c-format */
4952 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
4953
48d502e1
BS		 4954 if (flags & EF_BFIN_PIC)
4955 fprintf (file, " -fpic");
4956
4957 if (flags & EF_BFIN_FDPIC)
4958 fprintf (file, " -mfdpic");
4959
0f64bb02
CM		 4960 fputc ('\n', file);
4961
4962 return TRUE;
4963}
4964
48d502e1
BS		 4965/* Merge backend specific data from an object file to the output
4966 object file when linking. */
4967
4968static bfd_boolean
4969elf32_bfin_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4970{
7a84e3da 4971 flagword old_flags, new_flags;
48d502e1
BS		 4972 bfd_boolean error = FALSE;
4973
4974 new_flags = elf_elfheader (ibfd)->e_flags;
4975 old_flags = elf_elfheader (obfd)->e_flags;
4976
4977 if (new_flags & EF_BFIN_FDPIC)
4978 new_flags &= ~EF_BFIN_PIC;
4979
c7e2358a
AM		 4980#ifndef DEBUG
4981 if (0)
4982#endif
48d502e1
BS		 4983 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
4984 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
4985 bfd_get_filename (ibfd));
48d502e1
BS		 4986
4987 if (!elf_flags_init (obfd)) /* First call, no flags set. */
4988 {
4989 elf_flags_init (obfd) = TRUE;
7a84e3da 4990 elf_elfheader (obfd)->e_flags = new_flags;
48d502e1
BS		 4991 }
4992
7a84e3da 4993 if (((new_flags & EF_BFIN_FDPIC) == 0) != (! IS_FDPIC (obfd)))
48d502e1
BS		 4994 {
4995 error = TRUE;
4996 if (IS_FDPIC (obfd))
4997 (*_bfd_error_handler)
4998 (_("%s: cannot link non-fdpic object file into fdpic executable"),
4999 bfd_get_filename (ibfd));
5000 else
5001 (*_bfd_error_handler)
5002 (_("%s: cannot link fdpic object file into non-fdpic executable"),
5003 bfd_get_filename (ibfd));
5004 }
5005
5006 if (error)
5007 bfd_set_error (bfd_error_bad_value);
5008
5009 return !error;
5010}
5011\f
0f64bb02
CM		 5012/* bfin ELF linker hash entry. */
5013
5014struct bfin_link_hash_entry
5015{
5016 struct elf_link_hash_entry root;
5017
5018 /* Number of PC relative relocs copied for this symbol. */
5019 struct bfin_pcrel_relocs_copied *pcrel_relocs_copied;
5020};
5021
5022/* bfin ELF linker hash table. */
5023
5024struct bfin_link_hash_table
5025{
5026 struct elf_link_hash_table root;
5027
87d72d41
AM		 5028 /* Small local sym cache. */
5029 struct sym_cache sym_cache;
0f64bb02
CM		 5030};
5031
5032#define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent))
5033
5034static struct bfd_hash_entry *
5035bfin_link_hash_newfunc (struct bfd_hash_entry *entry,
48d502e1 5036 struct bfd_hash_table *table, const char *string)
0f64bb02
CM		 5037{
5038 struct bfd_hash_entry *ret = entry;
5039
5040 /* Allocate the structure if it has not already been allocated by a
5041 subclass. */
5042 if (ret == NULL)
5043 ret = bfd_hash_allocate (table, sizeof (struct bfin_link_hash_entry));
5044 if (ret == NULL)
5045 return ret;
5046
5047 /* Call the allocation method of the superclass. */
5048 ret = _bfd_elf_link_hash_newfunc (ret, table, string);
5049 if (ret != NULL)
5050 bfin_hash_entry (ret)->pcrel_relocs_copied = NULL;
5051
5052 return ret;
5053}
5054
5055/* Create an bfin ELF linker hash table. */
5056
5057static struct bfd_link_hash_table *
5058bfin_link_hash_table_create (bfd * abfd)
5059{
5060 struct bfin_link_hash_table *ret;
5061 bfd_size_type amt = sizeof (struct bfin_link_hash_table);
5062
22cdc249 5063 ret = bfd_zmalloc (amt);
48d502e1 5064 if (ret == NULL)
0f64bb02
CM		 5065 return NULL;
5066
5067 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
66eb6687 5068 bfin_link_hash_newfunc,
4dfe6ac6
NC		 5069 sizeof (struct elf_link_hash_entry),
5070 BFIN_ELF_DATA))
0f64bb02
CM		 5071 {
5072 free (ret);
5073 return NULL;
5074 }
5075
87d72d41 5076 ret->sym_cache.abfd = NULL;
0f64bb02
CM		 5077
5078 return &ret->root.root;
5079}
5080
5081/* The size in bytes of an entry in the procedure linkage table. */
5082
5083/* Finish up the dynamic sections. */
5084
5085static bfd_boolean
5086bfin_finish_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 5087 struct bfd_link_info *info)
0f64bb02
CM		 5088{
5089 bfd *dynobj;
5090 asection *sdyn;
5091
5092 dynobj = elf_hash_table (info)->dynobj;
5093
3d4d4302 5094 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
0f64bb02
CM		 5095
5096 if (elf_hash_table (info)->dynamic_sections_created)
5097 {
5098 Elf32_External_Dyn *dyncon, *dynconend;
5099
5100 BFD_ASSERT (sdyn != NULL);
5101
5102 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5103 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5104 for (; dyncon < dynconend; dyncon++)
5105 {
5106 Elf_Internal_Dyn dyn;
5107
5108 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5109
5110 }
5111
5112 }
5113 return TRUE;
5114}
5115
5116/* Finish up dynamic symbol handling. We set the contents of various
5117 dynamic sections here. */
5118
5119static bfd_boolean
5120bfin_finish_dynamic_symbol (bfd * output_bfd,
2c3fc389
NC		 5121 struct bfd_link_info *info,
5122 struct elf_link_hash_entry *h,
5123 Elf_Internal_Sym * sym)
0f64bb02
CM		 5124{
5125 bfd *dynobj;
5126
5127 dynobj = elf_hash_table (info)->dynobj;
5128
5129 if (h->got.offset != (bfd_vma) - 1)
5130 {
5131 asection *sgot;
5132 asection *srela;
5133 Elf_Internal_Rela rela;
5134 bfd_byte *loc;
5135
5136 /* This symbol has an entry in the global offset table.
5137 Set it up. */
5138
3d4d4302
AM		 5139 sgot = bfd_get_linker_section (dynobj, ".got");
5140 srela = bfd_get_linker_section (dynobj, ".rela.got");
0f64bb02
CM		 5141 BFD_ASSERT (sgot != NULL && srela != NULL);
5142
5143 rela.r_offset = (sgot->output_section->vma
5144 + sgot->output_offset
5145 + (h->got.offset & ~(bfd_vma) 1));
5146
5147 /* If this is a -Bsymbolic link, and the symbol is defined
5148 locally, we just want to emit a RELATIVE reloc. Likewise if
5149 the symbol was forced to be local because of a version file.
5150 The entry in the global offset table will already have been
5151 initialized in the relocate_section function. */
0e1862bb 5152 if (bfd_link_pic (info)
0f64bb02
CM		 5153 && (info->symbolic
5154 || h->dynindx == -1 || h->forced_local) && h->def_regular)
5155 {
4a97a0e5
AM		 5156 (*_bfd_error_handler) (_("*** check this relocation %s"),
5157 __FUNCTION__);
cb88ce9f 5158 rela.r_info = ELF32_R_INFO (0, R_BFIN_PCREL24);
0f64bb02
CM		 5159 rela.r_addend = bfd_get_signed_32 (output_bfd,
5160 (sgot->contents
5161 +
5162 (h->got.
5163 offset & ~(bfd_vma) 1)));
5164 }
5165 else
5166 {
5167 bfd_put_32 (output_bfd, (bfd_vma) 0,
5168 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
cb88ce9f 5169 rela.r_info = ELF32_R_INFO (h->dynindx, R_BFIN_GOT);
0f64bb02
CM		 5170 rela.r_addend = 0;
5171 }
5172
5173 loc = srela->contents;
5174 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
5175 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
5176 }
5177
5178 if (h->needs_copy)
5179 {
5180 BFD_ASSERT (0);
5181 }
5182 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
5592d7ec 5183 if (strcmp (h->root.root.string, "__DYNAMIC") == 0
22edb2f1 5184 || h == elf_hash_table (info)->hgot)
0f64bb02
CM		 5185 sym->st_shndx = SHN_ABS;
5186
5187 return TRUE;
5188}
5189
5190/* Adjust a symbol defined by a dynamic object and referenced by a
5191 regular object. The current definition is in some section of the
5192 dynamic object, but we're not including those sections. We have to
5193 change the definition to something the rest of the link can
5194 understand. */
5195
5196static bfd_boolean
5197bfin_adjust_dynamic_symbol (struct bfd_link_info *info,
2c3fc389 5198 struct elf_link_hash_entry *h)
0f64bb02
CM		 5199{
5200 bfd *dynobj;
5201 asection *s;
5202 unsigned int power_of_two;
5203
5204 dynobj = elf_hash_table (info)->dynobj;
5205
5206 /* Make sure we know what is going on here. */
5207 BFD_ASSERT (dynobj != NULL
5208 && (h->needs_plt
5209 || h->u.weakdef != NULL
5210 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
5211
5212 /* If this is a function, put it in the procedure linkage table. We
5213 will fill in the contents of the procedure linkage table later,
5214 when we know the address of the .got section. */
5215 if (h->type == STT_FUNC || h->needs_plt)
5216 {
5217 BFD_ASSERT(0);
5218 }
5219
5220 /* If this is a weak symbol, and there is a real definition, the
5221 processor independent code will have arranged for us to see the
5222 real definition first, and we can just use the same value. */
5223 if (h->u.weakdef != NULL)
5224 {
5225 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5226 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5227 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5228 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5229 return TRUE;
5230 }
5231
5232 /* This is a reference to a symbol defined by a dynamic object which
5233 is not a function. */
5234
5235 /* If we are creating a shared library, we must presume that the
5236 only references to the symbol are via the global offset table.
5237 For such cases we need not do anything here; the relocations will
5238 be handled correctly by relocate_section. */
0e1862bb 5239 if (bfd_link_pic (info))
0f64bb02
CM		 5240 return TRUE;
5241
5242 /* We must allocate the symbol in our .dynbss section, which will
5243 become part of the .bss section of the executable. There will be
5244 an entry for this symbol in the .dynsym section. The dynamic
5245 object will contain position independent code, so all references
5246 from the dynamic object to this symbol will go through the global
5247 offset table. The dynamic linker will use the .dynsym entry to
5248 determine the address it must put in the global offset table, so
5249 both the dynamic object and the regular object will refer to the
5250 same memory location for the variable. */
5251
3d4d4302 5252 s = bfd_get_linker_section (dynobj, ".dynbss");
0f64bb02
CM		 5253 BFD_ASSERT (s != NULL);
5254
5255 /* We must generate a R_68K_COPY reloc to tell the dynamic linker to
5256 copy the initial value out of the dynamic object and into the
5257 runtime process image. We need to remember the offset into the
5258 .rela.bss section we are going to use. */
5259 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5260 {
5261 asection *srel;
5262
3d4d4302 5263 srel = bfd_get_linker_section (dynobj, ".rela.bss");
0f64bb02
CM		 5264 BFD_ASSERT (srel != NULL);
5265 srel->size += sizeof (Elf32_External_Rela);
5266 h->needs_copy = 1;
5267 }
5268
5269 /* We need to figure out the alignment required for this symbol. I
5270 have no idea how ELF linkers handle this. */
5271 power_of_two = bfd_log2 (h->size);
5272 if (power_of_two > 3)
5273 power_of_two = 3;
5274
5275 /* Apply the required alignment. */
5276 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
5277 if (power_of_two > bfd_get_section_alignment (dynobj, s))
5278 {
5279 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
5280 return FALSE;
5281 }
5282
5283 /* Define the symbol as being at this point in the section. */
5284 h->root.u.def.section = s;
5285 h->root.u.def.value = s->size;
5286
5287 /* Increment the section size to make room for the symbol. */
5288 s->size += h->size;
5289
5290 return TRUE;
5291}
5292
5293/* The bfin linker needs to keep track of the number of relocs that it
5294 decides to copy in check_relocs for each symbol. This is so that it
5295 can discard PC relative relocs if it doesn't need them when linking
5296 with -Bsymbolic. We store the information in a field extending the
5297 regular ELF linker hash table. */
5298
5299/* This structure keeps track of the number of PC relative relocs we have
5300 copied for a given symbol. */
5301
5302struct bfin_pcrel_relocs_copied
5303{
5304 /* Next section. */
5305 struct bfin_pcrel_relocs_copied *next;
5306 /* A section in dynobj. */
5307 asection *section;
5308 /* Number of relocs copied in this section. */
5309 bfd_size_type count;
5310};
5311
5312/* This function is called via elf_link_hash_traverse if we are
5313 creating a shared object. In the -Bsymbolic case it discards the
5314 space allocated to copy PC relative relocs against symbols which
5315 are defined in regular objects. For the normal shared case, it
5316 discards space for pc-relative relocs that have become local due to
5317 symbol visibility changes. We allocated space for them in the
5318 check_relocs routine, but we won't fill them in in the
5319 relocate_section routine.
5320
5321 We also check whether any of the remaining relocations apply
5322 against a readonly section, and set the DF_TEXTREL flag in this
5323 case. */
5324
5325static bfd_boolean
2c3fc389 5326bfin_discard_copies (struct elf_link_hash_entry *h, void * inf)
0f64bb02
CM		 5327{
5328 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5329 struct bfin_pcrel_relocs_copied *s;
5330
0f64bb02
CM		 5331 if (!h->def_regular || (!info->symbolic && !h->forced_local))
5332 {
5333 if ((info->flags & DF_TEXTREL) == 0)
5334 {
5335 /* Look for relocations against read-only sections. */
5336 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5337 s != NULL; s = s->next)
5338 if ((s->section->flags & SEC_READONLY) != 0)
5339 {
5340 info->flags |= DF_TEXTREL;
5341 break;
5342 }
5343 }
5344
5345 return TRUE;
5346 }
5347
5348 for (s = bfin_hash_entry (h)->pcrel_relocs_copied;
5349 s != NULL; s = s->next)
5350 s->section->size -= s->count * sizeof (Elf32_External_Rela);
5351
5352 return TRUE;
5353}
5354
0f64bb02
CM		 5355static bfd_boolean
5356bfin_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
2c3fc389 5357 struct bfd_link_info *info)
0f64bb02
CM		 5358{
5359 bfd *dynobj;
5360 asection *s;
5361 bfd_boolean relocs;
5362
5363 dynobj = elf_hash_table (info)->dynobj;
5364 BFD_ASSERT (dynobj != NULL);
5365
5366 if (elf_hash_table (info)->dynamic_sections_created)
5367 {
5368 /* Set the contents of the .interp section to the interpreter. */
0e1862bb 5369 if (bfd_link_executable (info))
0f64bb02 5370 {
3d4d4302 5371 s = bfd_get_linker_section (dynobj, ".interp");
0f64bb02
CM		 5372 BFD_ASSERT (s != NULL);
5373 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5374 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5375 }
5376 }
5377 else
5378 {
5379 /* We may have created entries in the .rela.got section.
5380 However, if we are not creating the dynamic sections, we will
5381 not actually use these entries. Reset the size of .rela.got,
5382 which will cause it to get stripped from the output file
5383 below. */
3d4d4302 5384 s = bfd_get_linker_section (dynobj, ".rela.got");
0f64bb02
CM		 5385 if (s != NULL)
5386 s->size = 0;
5387 }
5388
5389 /* If this is a -Bsymbolic shared link, then we need to discard all
5390 PC relative relocs against symbols defined in a regular object.
5391 For the normal shared case we discard the PC relative relocs
5392 against symbols that have become local due to visibility changes.
5393 We allocated space for them in the check_relocs routine, but we
5394 will not fill them in in the relocate_section routine. */
0e1862bb 5395 if (bfd_link_pic (info))
0f64bb02 5396 elf_link_hash_traverse (elf_hash_table (info),
2c3fc389 5397 bfin_discard_copies, info);
0f64bb02
CM		 5398
5399 /* The check_relocs and adjust_dynamic_symbol entry points have
5400 determined the sizes of the various dynamic sections. Allocate
5401 memory for them. */
5402 relocs = FALSE;
5403 for (s = dynobj->sections; s != NULL; s = s->next)
5404 {
5405 const char *name;
5406 bfd_boolean strip;
5407
5408 if ((s->flags & SEC_LINKER_CREATED) == 0)
5409 continue;
5410
5411 /* It's OK to base decisions on the section name, because none
5412 of the dynobj section names depend upon the input files. */
5413 name = bfd_get_section_name (dynobj, s);
5414
5415 strip = FALSE;
5416
0112cd26 5417 if (CONST_STRNEQ (name, ".rela"))
0f64bb02
CM		 5418 {
5419 if (s->size == 0)
5420 {
5421 /* If we don't need this section, strip it from the
5422 output file. This is mostly to handle .rela.bss and
5423 .rela.plt. We must create both sections in
5424 create_dynamic_sections, because they must be created
5425 before the linker maps input sections to output
5426 sections. The linker does that before
5427 adjust_dynamic_symbol is called, and it is that
5428 function which decides whether anything needs to go
5429 into these sections. */
5430 strip = TRUE;
5431 }
5432 else
5433 {
5434 relocs = TRUE;
5435
5436 /* We use the reloc_count field as a counter if we need
5437 to copy relocs into the output file. */
5438 s->reloc_count = 0;
5439 }
5440 }
0112cd26 5441 else if (! CONST_STRNEQ (name, ".got"))
0f64bb02
CM		 5442 {
5443 /* It's not one of our sections, so don't allocate space. */
5444 continue;
5445 }
5446
5447 if (strip)
5448 {
5449 s->flags |= SEC_EXCLUDE;
5450 continue;
5451 }
5452
5453 /* Allocate memory for the section contents. */
5454 /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
5455 Unused entries should be reclaimed before the section's contents
5456 are written out, but at the moment this does not happen. Thus in
5457 order to prevent writing out garbage, we initialise the section's
5458 contents to zero. */
5459 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
5460 if (s->contents == NULL && s->size != 0)
5461 return FALSE;
5462 }
5463
5464 if (elf_hash_table (info)->dynamic_sections_created)
5465 {
5466 /* Add some entries to the .dynamic section. We fill in the
5467 values later, in bfin_finish_dynamic_sections, but we
5468 must add the entries now so that we get the correct size for
5469 the .dynamic section. The DT_DEBUG entry is filled in by the
5470 dynamic linker and used by the debugger. */
5471#define add_dynamic_entry(TAG, VAL) \
5472 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
5473
0e1862bb 5474 if (!bfd_link_pic (info))
0f64bb02
CM		 5475 {
5476 if (!add_dynamic_entry (DT_DEBUG, 0))
5477 return FALSE;
5478 }
5479
5480
5481 if (relocs)
5482 {
5483 if (!add_dynamic_entry (DT_RELA, 0)
5484 || !add_dynamic_entry (DT_RELASZ, 0)
5485 || !add_dynamic_entry (DT_RELAENT,
5486 sizeof (Elf32_External_Rela)))
5487 return FALSE;
5488 }
5489
5490 if ((info->flags & DF_TEXTREL) != 0)
5491 {
5492 if (!add_dynamic_entry (DT_TEXTREL, 0))
5493 return FALSE;
5494 }
5495 }
5496#undef add_dynamic_entry
5497
5498 return TRUE;
5499}
48d502e1 5500\f
0f64bb02
CM		 5501/* Given a .data section and a .emreloc in-memory section, store
5502 relocation information into the .emreloc section which can be
5503 used at runtime to relocate the section. This is called by the
5504 linker when the --embedded-relocs switch is used. This is called
5505 after the add_symbols entry point has been called for all the
5506 objects, and before the final_link entry point is called. */
5507
5508bfd_boolean
2c3fc389
NC		 5509bfd_bfin_elf32_create_embedded_relocs (bfd *abfd,
5510 struct bfd_link_info *info,
5511 asection *datasec,
5512 asection *relsec,
5513 char **errmsg)
0f64bb02
CM		 5514{
5515 Elf_Internal_Shdr *symtab_hdr;
5516 Elf_Internal_Sym *isymbuf = NULL;
5517 Elf_Internal_Rela *internal_relocs = NULL;
5518 Elf_Internal_Rela *irel, *irelend;
5519 bfd_byte *p;
5520 bfd_size_type amt;
5521
0e1862bb 5522 BFD_ASSERT (! bfd_link_relocatable (info));
0f64bb02
CM		 5523
5524 *errmsg = NULL;
5525
5526 if (datasec->reloc_count == 0)
5527 return TRUE;
5528
5529 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5530
5531 /* Get a copy of the native relocations. */
5532 internal_relocs = (_bfd_elf_link_read_relocs
2c3fc389 5533 (abfd, datasec, NULL, (Elf_Internal_Rela *) NULL,
0f64bb02
CM		 5534 info->keep_memory));
5535 if (internal_relocs == NULL)
5536 goto error_return;
5537
5538 amt = (bfd_size_type) datasec->reloc_count * 12;
5539 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
5540 if (relsec->contents == NULL)
5541 goto error_return;
5542
5543 p = relsec->contents;
5544
5545 irelend = internal_relocs + datasec->reloc_count;
5546 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
5547 {
5548 asection *targetsec;
5549
5550 /* We are going to write a four byte longword into the runtime
5551 reloc section. The longword will be the address in the data
5552 section which must be relocated. It is followed by the name
5553 of the target section NUL-padded or truncated to 8
5554 characters. */
5555
5556 /* We can only relocate absolute longword relocs at run time. */
cb88ce9f 5557 if (ELF32_R_TYPE (irel->r_info) != (int) R_BFIN_BYTE4_DATA)
0f64bb02
CM		 5558 {
5559 *errmsg = _("unsupported reloc type");
5560 bfd_set_error (bfd_error_bad_value);
5561 goto error_return;
5562 }
5563
5564 /* Get the target section referred to by the reloc. */
5565 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5566 {
5567 /* A local symbol. */
5568 Elf_Internal_Sym *isym;
5569
5570 /* Read this BFD's local symbols if we haven't done so already. */
5571 if (isymbuf == NULL)
5572 {
5573 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5574 if (isymbuf == NULL)
5575 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5576 symtab_hdr->sh_info, 0,
5577 NULL, NULL, NULL);
5578 if (isymbuf == NULL)
5579 goto error_return;
5580 }
5581
5582 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5583 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
5584 }
5585 else
5586 {
5587 unsigned long indx;
5588 struct elf_link_hash_entry *h;
5589
5590 /* An external symbol. */
5591 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5592 h = elf_sym_hashes (abfd)[indx];
5593 BFD_ASSERT (h != NULL);
5594 if (h->root.type == bfd_link_hash_defined
5595 || h->root.type == bfd_link_hash_defweak)
5596 targetsec = h->root.u.def.section;
5597 else
5598 targetsec = NULL;
5599 }
5600
5601 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
5602 memset (p + 4, 0, 8);
5603 if (targetsec != NULL)
9ba4c445 5604 strncpy ((char *) p + 4, targetsec->output_section->name, 8);
0f64bb02
CM		 5605 }
5606
5607 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
5608 free (isymbuf);
5609 if (internal_relocs != NULL
5610 && elf_section_data (datasec)->relocs != internal_relocs)
5611 free (internal_relocs);
5612 return TRUE;
5613
5614error_return:
5615 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
5616 free (isymbuf);
5617 if (internal_relocs != NULL
5618 && elf_section_data (datasec)->relocs != internal_relocs)
5619 free (internal_relocs);
5620 return FALSE;
5621}
b0a0b978
JZ		 5622
5623struct bfd_elf_special_section const elf32_bfin_special_sections[] =
5624{
5625 { ".l1.text", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
5626 { ".l1.data", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
5627 { NULL, 0, 0, 0, 0 }
5628};
5629
48d502e1 5630\f
6d00b590 5631#define TARGET_LITTLE_SYM bfin_elf32_vec
0f64bb02
CM		 5632#define TARGET_LITTLE_NAME "elf32-bfin"
5633#define ELF_ARCH bfd_arch_bfin
ae95ffa6 5634#define ELF_TARGET_ID BFIN_ELF_DATA
3b55e94a 5635#define ELF_MACHINE_CODE EM_BLACKFIN
0f64bb02
CM		 5636#define ELF_MAXPAGESIZE 0x1000
5637#define elf_symbol_leading_char '_'
5638
5639#define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup
157090f7
AM		 5640#define bfd_elf32_bfd_reloc_name_lookup \
5641 bfin_bfd_reloc_name_lookup
0f64bb02
CM		 5642#define elf_info_to_howto bfin_info_to_howto
5643#define elf_info_to_howto_rel 0
48d502e1 5644#define elf_backend_object_p elf32_bfin_object_p
0f64bb02
CM		 5645
5646#define bfd_elf32_bfd_is_local_label_name \
5647 bfin_is_local_label_name
5648#define bfin_hash_table(p) \
5649 ((struct bfin_link_hash_table *) (p)->hash)
5650
5651
5652
5653#define elf_backend_create_dynamic_sections \
5654 _bfd_elf_create_dynamic_sections
5655#define bfd_elf32_bfd_link_hash_table_create \
5656 bfin_link_hash_table_create
5657#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
5658
48d502e1 5659#define elf_backend_check_relocs bfin_check_relocs
0f64bb02
CM		 5660#define elf_backend_adjust_dynamic_symbol \
5661 bfin_adjust_dynamic_symbol
5662#define elf_backend_size_dynamic_sections \
5663 bfin_size_dynamic_sections
5664#define elf_backend_relocate_section bfin_relocate_section
5665#define elf_backend_finish_dynamic_symbol \
5666 bfin_finish_dynamic_symbol
5667#define elf_backend_finish_dynamic_sections \
5668 bfin_finish_dynamic_sections
5669#define elf_backend_gc_mark_hook bfin_gc_mark_hook
5670#define elf_backend_gc_sweep_hook bfin_gc_sweep_hook
5671#define bfd_elf32_bfd_merge_private_bfd_data \
5672 elf32_bfin_merge_private_bfd_data
5673#define bfd_elf32_bfd_set_private_flags \
5674 elf32_bfin_set_private_flags
5675#define bfd_elf32_bfd_print_private_bfd_data \
5676 elf32_bfin_print_private_bfd_data
781303ce
MF		 5677#define elf_backend_final_write_processing \
5678 elf32_bfin_final_write_processing
0f64bb02 5679#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
04c3a755 5680#define elf_backend_stack_align 8
0f64bb02 5681#define elf_backend_can_gc_sections 1
b0a0b978 5682#define elf_backend_special_sections elf32_bfin_special_sections
0f64bb02
CM		 5683#define elf_backend_can_refcount 1
5684#define elf_backend_want_got_plt 0
5685#define elf_backend_plt_readonly 1
5686#define elf_backend_want_plt_sym 0
5687#define elf_backend_got_header_size 12
5688#define elf_backend_rela_normal 1
5689
48d502e1
BS		 5690#include "elf32-target.h"
5691
5692#undef TARGET_LITTLE_SYM
6d00b590 5693#define TARGET_LITTLE_SYM bfin_elf32_fdpic_vec
48d502e1
BS		 5694#undef TARGET_LITTLE_NAME
5695#define TARGET_LITTLE_NAME "elf32-bfinfdpic"
5696#undef elf32_bed
5697#define elf32_bed elf32_bfinfdpic_bed
5698
5699#undef elf_backend_gc_sweep_hook
2774f1a6 5700#define elf_backend_gc_sweep_hook bfinfdpic_gc_sweep_hook
48d502e1
BS		 5701
5702#undef elf_backend_got_header_size
5703#define elf_backend_got_header_size 0
5704
5705#undef elf_backend_relocate_section
5706#define elf_backend_relocate_section bfinfdpic_relocate_section
5707#undef elf_backend_check_relocs
5708#define elf_backend_check_relocs bfinfdpic_check_relocs
5709
5710#undef bfd_elf32_bfd_link_hash_table_create
5711#define bfd_elf32_bfd_link_hash_table_create \
5712 bfinfdpic_elf_link_hash_table_create
5713#undef elf_backend_always_size_sections
5714#define elf_backend_always_size_sections \
5715 elf32_bfinfdpic_always_size_sections
48d502e1
BS		 5716
5717#undef elf_backend_create_dynamic_sections
5718#define elf_backend_create_dynamic_sections \
5719 elf32_bfinfdpic_create_dynamic_sections
5720#undef elf_backend_adjust_dynamic_symbol
5721#define elf_backend_adjust_dynamic_symbol \
5722 elf32_bfinfdpic_adjust_dynamic_symbol
5723#undef elf_backend_size_dynamic_sections
5724#define elf_backend_size_dynamic_sections \
5725 elf32_bfinfdpic_size_dynamic_sections
5726#undef elf_backend_finish_dynamic_symbol
5727#define elf_backend_finish_dynamic_symbol \
5728 elf32_bfinfdpic_finish_dynamic_symbol
5729#undef elf_backend_finish_dynamic_sections
5730#define elf_backend_finish_dynamic_sections \
5731 elf32_bfinfdpic_finish_dynamic_sections
5732
6a9adeca
BS		 5733#undef elf_backend_discard_info
5734#define elf_backend_discard_info \
5735 bfinfdpic_elf_discard_info
48d502e1
BS		 5736#undef elf_backend_can_make_relative_eh_frame
5737#define elf_backend_can_make_relative_eh_frame \
5738 bfinfdpic_elf_use_relative_eh_frame
5739#undef elf_backend_can_make_lsda_relative_eh_frame
5740#define elf_backend_can_make_lsda_relative_eh_frame \
5741 bfinfdpic_elf_use_relative_eh_frame
5742#undef elf_backend_encode_eh_address
5743#define elf_backend_encode_eh_address \
5744 bfinfdpic_elf_encode_eh_address
5745
5746#undef elf_backend_may_use_rel_p
5747#define elf_backend_may_use_rel_p 1
5748#undef elf_backend_may_use_rela_p
5749#define elf_backend_may_use_rela_p 1
5750/* We use REL for dynamic relocations only. */
5751#undef elf_backend_default_use_rela_p
5752#define elf_backend_default_use_rela_p 1
5753
5754#undef elf_backend_omit_section_dynsym
5755#define elf_backend_omit_section_dynsym _bfinfdpic_link_omit_section_dynsym
0f64bb02
CM		 5756
5757#include "elf32-target.h"
GDB Binutils - Deliverables
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