1 /* 32-bit ELF support for TI C6X 2 Copyright (C) 2010-2020 Free Software Foundation, Inc. 3 Contributed by Joseph Myers <joseph@codesourcery.com> 4 Bernd Schmidt <bernds@codesourcery.com> 5 6 This file is part of BFD, the Binary File Descriptor library. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23 #include "sysdep.h" 24 #include <limits.h> 25 #include "bfd.h" 26 #include "libbfd.h" 27 #include "libiberty.h" 28 #include "elf-bfd.h" 29 #include "elf/tic6x.h" 30 #include "elf32-tic6x.h" 31 32 #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0" 33 34 /* DSBT binaries have a default 128K stack. */ 35 #define DEFAULT_STACK_SIZE 0x20000 36 37 /* The size in bytes of an entry in the procedure linkage table. */ 38 #define PLT_ENTRY_SIZE 24 39 40 /* TI C6X ELF linker hash table. */ 41 42 struct elf32_tic6x_link_hash_table 43 { 44 struct elf_link_hash_table elf; 45 46 /* C6X specific command line arguments. */ 47 struct elf32_tic6x_params params; 48 49 /* The output BFD, for convenience. */ 50 bfd *obfd; 51 52 /* The .dsbt section. */ 53 asection *dsbt; 54 }; 55 56 /* Get the TI C6X ELF linker hash table from a link_info structure. */ 57 58 #define elf32_tic6x_hash_table(p) \ 59 ((struct elf32_tic6x_link_hash_table *) ((p)->hash)) 60 61 typedef enum 62 { 63 DELETE_EXIDX_ENTRY, 64 INSERT_EXIDX_CANTUNWIND_AT_END 65 } 66 tic6x_unwind_edit_type; 67 68 /* A (sorted) list of edits to apply to an unwind table. */ 69 typedef struct tic6x_unwind_table_edit 70 { 71 tic6x_unwind_edit_type type; 72 /* Note: we sometimes want to insert an unwind entry corresponding to a 73 section different from the one we're currently writing out, so record the 74 (text) section this edit relates to here. */ 75 asection *linked_section; 76 unsigned int index; 77 struct tic6x_unwind_table_edit *next; 78 } 79 tic6x_unwind_table_edit; 80 81 typedef struct _tic6x_elf_section_data 82 { 83 /* Information about mapping symbols. */ 84 struct bfd_elf_section_data elf; 85 /* Information about unwind tables. */ 86 union 87 { 88 /* Unwind info attached to a text section. */ 89 struct 90 { 91 asection *tic6x_exidx_sec; 92 } text; 93 94 /* Unwind info attached to an .c6xabi.exidx section. */ 95 struct 96 { 97 tic6x_unwind_table_edit *unwind_edit_list; 98 tic6x_unwind_table_edit *unwind_edit_tail; 99 } exidx; 100 } u; 101 } 102 _tic6x_elf_section_data; 103 104 #define elf32_tic6x_section_data(sec) \ 105 ((_tic6x_elf_section_data *) elf_section_data (sec)) 106 107 struct elf32_tic6x_obj_tdata 108 { 109 struct elf_obj_tdata root; 110 111 /* Whether to use RELA relocations when generating relocations. 112 This is a per-object flag to allow the assembler to generate REL 113 relocations for use in linker testcases. */ 114 bfd_boolean use_rela_p; 115 }; 116 117 #define elf32_tic6x_tdata(abfd) \ 118 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any) 119 120 #define is_tic6x_elf(bfd) \ 121 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ 122 && elf_tdata (bfd) != NULL \ 123 && elf_object_id (bfd) == TIC6X_ELF_DATA) 124 125 /* C6X ELF uses two common sections. One is the usual one, and the 126 other is for small objects. All the small objects are kept 127 together, and then referenced via the gp pointer, which yields 128 faster assembler code. This is what we use for the small common 129 section. This approach is copied from ecoff.c. */ 130 static asection tic6x_elf_scom_section; 131 static asymbol tic6x_elf_scom_symbol; 132 static asymbol *tic6x_elf_scom_symbol_ptr; 133 134 static reloc_howto_type elf32_tic6x_howto_table[] = 135 { 136 HOWTO (R_C6000_NONE, /* type */ 137 0, /* rightshift */ 138 3, /* size (0 = byte, 1 = short, 2 = long) */ 139 0, /* bitsize */ 140 FALSE, /* pc_relative */ 141 0, /* bitpos */ 142 complain_overflow_dont,/* complain_on_overflow */ 143 bfd_elf_generic_reloc, /* special_function */ 144 "R_C6000_NONE", /* name */ 145 FALSE, /* partial_inplace */ 146 0, /* src_mask */ 147 0, /* dst_mask */ 148 FALSE), /* pcrel_offset */ 149 HOWTO (R_C6000_ABS32, /* type */ 150 0, /* rightshift */ 151 2, /* size (0 = byte, 1 = short, 2 = long) */ 152 32, /* bitsize */ 153 FALSE, /* pc_relative */ 154 0, /* bitpos */ 155 complain_overflow_dont,/* complain_on_overflow */ 156 bfd_elf_generic_reloc, /* special_function */ 157 "R_C6000_ABS32", /* name */ 158 FALSE, /* partial_inplace */ 159 0, /* src_mask */ 160 0xffffffff, /* dst_mask */ 161 FALSE), /* pcrel_offset */ 162 HOWTO (R_C6000_ABS16, /* type */ 163 0, /* rightshift */ 164 1, /* size (0 = byte, 1 = short, 2 = long) */ 165 16, /* bitsize */ 166 FALSE, /* pc_relative */ 167 0, /* bitpos */ 168 complain_overflow_bitfield,/* complain_on_overflow */ 169 bfd_elf_generic_reloc, /* special_function */ 170 "R_C6000_ABS16", /* name */ 171 FALSE, /* partial_inplace */ 172 0, /* src_mask */ 173 0x0000ffff, /* dst_mask */ 174 FALSE), /* pcrel_offset */ 175 HOWTO (R_C6000_ABS8, /* type */ 176 0, /* rightshift */ 177 0, /* size (0 = byte, 1 = short, 2 = long) */ 178 8, /* bitsize */ 179 FALSE, /* pc_relative */ 180 0, /* bitpos */ 181 complain_overflow_bitfield,/* complain_on_overflow */ 182 bfd_elf_generic_reloc, /* special_function */ 183 "R_C6000_ABS8", /* name */ 184 FALSE, /* partial_inplace */ 185 0, /* src_mask */ 186 0x000000ff, /* dst_mask */ 187 FALSE), /* pcrel_offset */ 188 HOWTO (R_C6000_PCR_S21, /* type */ 189 2, /* rightshift */ 190 2, /* size (0 = byte, 1 = short, 2 = long) */ 191 21, /* bitsize */ 192 TRUE, /* pc_relative */ 193 7, /* bitpos */ 194 complain_overflow_signed,/* complain_on_overflow */ 195 bfd_elf_generic_reloc, /* special_function */ 196 "R_C6000_PCR_S21", /* name */ 197 FALSE, /* partial_inplace */ 198 0, /* src_mask */ 199 0x0fffff80, /* dst_mask */ 200 TRUE), /* pcrel_offset */ 201 HOWTO (R_C6000_PCR_S12, /* type */ 202 2, /* rightshift */ 203 2, /* size (0 = byte, 1 = short, 2 = long) */ 204 12, /* bitsize */ 205 TRUE, /* pc_relative */ 206 16, /* bitpos */ 207 complain_overflow_signed,/* complain_on_overflow */ 208 bfd_elf_generic_reloc, /* special_function */ 209 "R_C6000_PCR_S12", /* name */ 210 FALSE, /* partial_inplace */ 211 0, /* src_mask */ 212 0x0fff0000, /* dst_mask */ 213 TRUE), /* pcrel_offset */ 214 HOWTO (R_C6000_PCR_S10, /* type */ 215 2, /* rightshift */ 216 2, /* size (0 = byte, 1 = short, 2 = long) */ 217 10, /* bitsize */ 218 TRUE, /* pc_relative */ 219 13, /* bitpos */ 220 complain_overflow_signed,/* complain_on_overflow */ 221 bfd_elf_generic_reloc, /* special_function */ 222 "R_C6000_PCR_S10", /* name */ 223 FALSE, /* partial_inplace */ 224 0, /* src_mask */ 225 0x007fe000, /* dst_mask */ 226 TRUE), /* pcrel_offset */ 227 HOWTO (R_C6000_PCR_S7, /* type */ 228 2, /* rightshift */ 229 2, /* size (0 = byte, 1 = short, 2 = long) */ 230 7, /* bitsize */ 231 TRUE, /* pc_relative */ 232 16, /* bitpos */ 233 complain_overflow_signed,/* complain_on_overflow */ 234 bfd_elf_generic_reloc, /* special_function */ 235 "R_C6000_PCR_S7", /* name */ 236 FALSE, /* partial_inplace */ 237 0, /* src_mask */ 238 0x007f0000, /* dst_mask */ 239 TRUE), /* pcrel_offset */ 240 HOWTO (R_C6000_ABS_S16, /* type */ 241 0, /* rightshift */ 242 2, /* size (0 = byte, 1 = short, 2 = long) */ 243 16, /* bitsize */ 244 FALSE, /* pc_relative */ 245 7, /* bitpos */ 246 complain_overflow_signed,/* complain_on_overflow */ 247 bfd_elf_generic_reloc, /* special_function */ 248 "R_C6000_ABS_S16", /* name */ 249 FALSE, /* partial_inplace */ 250 0, /* src_mask */ 251 0x007fff80, /* dst_mask */ 252 FALSE), /* pcrel_offset */ 253 HOWTO (R_C6000_ABS_L16, /* type */ 254 0, /* rightshift */ 255 2, /* size (0 = byte, 1 = short, 2 = long) */ 256 16, /* bitsize */ 257 FALSE, /* pc_relative */ 258 7, /* bitpos */ 259 complain_overflow_dont,/* complain_on_overflow */ 260 bfd_elf_generic_reloc, /* special_function */ 261 "R_C6000_ABS_L16", /* name */ 262 FALSE, /* partial_inplace */ 263 0, /* src_mask */ 264 0x007fff80, /* dst_mask */ 265 FALSE), /* pcrel_offset */ 266 HOWTO (R_C6000_ABS_H16, /* type */ 267 16, /* rightshift */ 268 2, /* size (0 = byte, 1 = short, 2 = long) */ 269 16, /* bitsize */ 270 FALSE, /* pc_relative */ 271 7, /* bitpos */ 272 complain_overflow_dont,/* complain_on_overflow */ 273 bfd_elf_generic_reloc, /* special_function */ 274 "R_C6000_ABS_H16", /* name */ 275 FALSE, /* partial_inplace */ 276 0, /* src_mask */ 277 0x007fff80, /* dst_mask */ 278 FALSE), /* pcrel_offset */ 279 HOWTO (R_C6000_SBR_U15_B, /* type */ 280 0, /* rightshift */ 281 2, /* size (0 = byte, 1 = short, 2 = long) */ 282 15, /* bitsize */ 283 FALSE, /* pc_relative */ 284 8, /* bitpos */ 285 complain_overflow_unsigned,/* complain_on_overflow */ 286 bfd_elf_generic_reloc, /* special_function */ 287 "R_C6000_SBR_U15_B", /* name */ 288 FALSE, /* partial_inplace */ 289 0, /* src_mask */ 290 0x007fff00, /* dst_mask */ 291 FALSE), /* pcrel_offset */ 292 HOWTO (R_C6000_SBR_U15_H, /* type */ 293 1, /* rightshift */ 294 2, /* size (0 = byte, 1 = short, 2 = long) */ 295 15, /* bitsize */ 296 FALSE, /* pc_relative */ 297 8, /* bitpos */ 298 complain_overflow_unsigned,/* complain_on_overflow */ 299 bfd_elf_generic_reloc, /* special_function */ 300 "R_C6000_SBR_U15_H", /* name */ 301 FALSE, /* partial_inplace */ 302 0, /* src_mask */ 303 0x007fff00, /* dst_mask */ 304 FALSE), /* pcrel_offset */ 305 HOWTO (R_C6000_SBR_U15_W, /* type */ 306 2, /* rightshift */ 307 2, /* size (0 = byte, 1 = short, 2 = long) */ 308 15, /* bitsize */ 309 FALSE, /* pc_relative */ 310 8, /* bitpos */ 311 complain_overflow_unsigned,/* complain_on_overflow */ 312 bfd_elf_generic_reloc, /* special_function */ 313 "R_C6000_SBR_U15_W", /* name */ 314 FALSE, /* partial_inplace */ 315 0, /* src_mask */ 316 0x007fff00, /* dst_mask */ 317 FALSE), /* pcrel_offset */ 318 HOWTO (R_C6000_SBR_S16, /* type */ 319 0, /* rightshift */ 320 2, /* size (0 = byte, 1 = short, 2 = long) */ 321 16, /* bitsize */ 322 FALSE, /* pc_relative */ 323 7, /* bitpos */ 324 complain_overflow_signed,/* complain_on_overflow */ 325 bfd_elf_generic_reloc, /* special_function */ 326 "R_C6000_SBR_S16", /* name */ 327 FALSE, /* partial_inplace */ 328 0, /* src_mask */ 329 0x007fff80, /* dst_mask */ 330 FALSE), /* pcrel_offset */ 331 HOWTO (R_C6000_SBR_L16_B, /* type */ 332 0, /* rightshift */ 333 2, /* size (0 = byte, 1 = short, 2 = long) */ 334 16, /* bitsize */ 335 FALSE, /* pc_relative */ 336 7, /* bitpos */ 337 complain_overflow_dont,/* complain_on_overflow */ 338 bfd_elf_generic_reloc, /* special_function */ 339 "R_C6000_SBR_L16_B", /* name */ 340 FALSE, /* partial_inplace */ 341 0, /* src_mask */ 342 0x007fff80, /* dst_mask */ 343 FALSE), /* pcrel_offset */ 344 HOWTO (R_C6000_SBR_L16_H, /* type */ 345 1, /* rightshift */ 346 2, /* size (0 = byte, 1 = short, 2 = long) */ 347 16, /* bitsize */ 348 FALSE, /* pc_relative */ 349 7, /* bitpos */ 350 complain_overflow_dont,/* complain_on_overflow */ 351 bfd_elf_generic_reloc, /* special_function */ 352 "R_C6000_SBR_L16_H", /* name */ 353 FALSE, /* partial_inplace */ 354 0, /* src_mask */ 355 0x007fff80, /* dst_mask */ 356 FALSE), /* pcrel_offset */ 357 HOWTO (R_C6000_SBR_L16_W, /* type */ 358 2, /* rightshift */ 359 2, /* size (0 = byte, 1 = short, 2 = long) */ 360 16, /* bitsize */ 361 FALSE, /* pc_relative */ 362 7, /* bitpos */ 363 complain_overflow_dont,/* complain_on_overflow */ 364 bfd_elf_generic_reloc, /* special_function */ 365 "R_C6000_SBR_L16_W", /* name */ 366 FALSE, /* partial_inplace */ 367 0, /* src_mask */ 368 0x007fff80, /* dst_mask */ 369 FALSE), /* pcrel_offset */ 370 HOWTO (R_C6000_SBR_H16_B, /* type */ 371 16, /* rightshift */ 372 2, /* size (0 = byte, 1 = short, 2 = long) */ 373 16, /* bitsize */ 374 FALSE, /* pc_relative */ 375 7, /* bitpos */ 376 complain_overflow_dont,/* complain_on_overflow */ 377 bfd_elf_generic_reloc, /* special_function */ 378 "R_C6000_SBR_H16_B", /* name */ 379 FALSE, /* partial_inplace */ 380 0, /* src_mask */ 381 0x007fff80, /* dst_mask */ 382 FALSE), /* pcrel_offset */ 383 HOWTO (R_C6000_SBR_H16_H, /* type */ 384 17, /* rightshift */ 385 2, /* size (0 = byte, 1 = short, 2 = long) */ 386 16, /* bitsize */ 387 FALSE, /* pc_relative */ 388 7, /* bitpos */ 389 complain_overflow_dont,/* complain_on_overflow */ 390 bfd_elf_generic_reloc, /* special_function */ 391 "R_C6000_SBR_H16_H", /* name */ 392 FALSE, /* partial_inplace */ 393 0, /* src_mask */ 394 0x007fff80, /* dst_mask */ 395 FALSE), /* pcrel_offset */ 396 HOWTO (R_C6000_SBR_H16_W, /* type */ 397 18, /* rightshift */ 398 2, /* size (0 = byte, 1 = short, 2 = long) */ 399 16, /* bitsize */ 400 FALSE, /* pc_relative */ 401 7, /* bitpos */ 402 complain_overflow_dont,/* complain_on_overflow */ 403 bfd_elf_generic_reloc, /* special_function */ 404 "R_C6000_SBR_H16_W", /* name */ 405 FALSE, /* partial_inplace */ 406 0, /* src_mask */ 407 0x007fff80, /* dst_mask */ 408 FALSE), /* pcrel_offset */ 409 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ 410 2, /* rightshift */ 411 2, /* size (0 = byte, 1 = short, 2 = long) */ 412 15, /* bitsize */ 413 FALSE, /* pc_relative */ 414 8, /* bitpos */ 415 complain_overflow_unsigned,/* complain_on_overflow */ 416 bfd_elf_generic_reloc, /* special_function */ 417 "R_C6000_SBR_GOT_U15_W",/* name */ 418 FALSE, /* partial_inplace */ 419 0, /* src_mask */ 420 0x007fff00, /* dst_mask */ 421 FALSE), /* pcrel_offset */ 422 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ 423 2, /* rightshift */ 424 2, /* size (0 = byte, 1 = short, 2 = long) */ 425 16, /* bitsize */ 426 FALSE, /* pc_relative */ 427 7, /* bitpos */ 428 complain_overflow_dont,/* complain_on_overflow */ 429 bfd_elf_generic_reloc, /* special_function */ 430 "R_C6000_SBR_GOT_L16_W",/* name */ 431 FALSE, /* partial_inplace */ 432 0, /* src_mask */ 433 0x007fff80, /* dst_mask */ 434 FALSE), /* pcrel_offset */ 435 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */ 436 18, /* rightshift */ 437 2, /* size (0 = byte, 1 = short, 2 = long) */ 438 16, /* bitsize */ 439 FALSE, /* pc_relative */ 440 7, /* bitpos */ 441 complain_overflow_dont,/* complain_on_overflow */ 442 bfd_elf_generic_reloc, /* special_function */ 443 "R_C6000_SBR_GOT_H16_W",/* name */ 444 FALSE, /* partial_inplace */ 445 0, /* src_mask */ 446 0x007fff80, /* dst_mask */ 447 FALSE), /* pcrel_offset */ 448 HOWTO (R_C6000_DSBT_INDEX, /* type */ 449 0, /* rightshift */ 450 2, /* size (0 = byte, 1 = short, 2 = long) */ 451 15, /* bitsize */ 452 FALSE, /* pc_relative */ 453 8, /* bitpos */ 454 complain_overflow_unsigned,/* complain_on_overflow */ 455 bfd_elf_generic_reloc, /* special_function */ 456 "R_C6000_DSBT_INDEX", /* name */ 457 FALSE, /* partial_inplace */ 458 0, /* src_mask */ 459 0x007fff00, /* dst_mask */ 460 FALSE), /* pcrel_offset */ 461 HOWTO (R_C6000_PREL31, /* type */ 462 1, /* rightshift */ 463 2, /* size (0 = byte, 1 = short, 2 = long) */ 464 31, /* bitsize */ 465 TRUE, /* pc_relative */ 466 0, /* bitpos */ 467 complain_overflow_dont,/* complain_on_overflow */ 468 bfd_elf_generic_reloc, /* special_function */ 469 "R_C6000_PREL31", /* name */ 470 FALSE, /* partial_inplace */ 471 0, /* src_mask */ 472 0x7fffffff, /* dst_mask */ 473 TRUE), /* pcrel_offset */ 474 HOWTO (R_C6000_COPY, /* type */ 475 0, /* rightshift */ 476 2, /* size (0 = byte, 1 = short, 2 = long) */ 477 32, /* bitsize */ 478 FALSE, /* pc_relative */ 479 0, /* bitpos */ 480 complain_overflow_dont,/* complain_on_overflow */ 481 bfd_elf_generic_reloc, /* special_function */ 482 "R_C6000_COPY", /* name */ 483 FALSE, /* partial_inplace */ 484 0, /* src_mask */ 485 0xffffffff, /* dst_mask */ 486 FALSE), /* pcrel_offset */ 487 HOWTO (R_C6000_JUMP_SLOT, /* type */ 488 0, /* rightshift */ 489 2, /* size (0 = byte, 1 = short, 2 = long) */ 490 32, /* bitsize */ 491 FALSE, /* pc_relative */ 492 0, /* bitpos */ 493 complain_overflow_dont,/* complain_on_overflow */ 494 bfd_elf_generic_reloc, /* special_function */ 495 "R_C6000_JUMP_SLOT", /* name */ 496 FALSE, /* partial_inplace */ 497 0, /* src_mask */ 498 0xffffffff, /* dst_mask */ 499 FALSE), /* pcrel_offset */ 500 HOWTO (R_C6000_EHTYPE, /* type */ 501 0, /* rightshift */ 502 2, /* size (0 = byte, 1 = short, 2 = long) */ 503 32, /* bitsize */ 504 FALSE, /* pc_relative */ 505 0, /* bitpos */ 506 complain_overflow_dont,/* complain_on_overflow */ 507 bfd_elf_generic_reloc, /* special_function */ 508 "R_C6000_EHTYPE", /* name */ 509 FALSE, /* partial_inplace */ 510 0, /* src_mask */ 511 0xffffffff, /* dst_mask */ 512 FALSE), /* pcrel_offset */ 513 HOWTO (R_C6000_PCR_H16, /* type */ 514 16, /* rightshift */ 515 2, /* size (0 = byte, 1 = short, 2 = long) */ 516 16, /* bitsize */ 517 TRUE, /* pc_relative */ 518 7, /* bitpos */ 519 complain_overflow_dont,/* complain_on_overflow */ 520 bfd_elf_generic_reloc, /* special_function */ 521 "R_C6000_PCR_H16", /* name */ 522 FALSE, /* partial_inplace */ 523 0, /* src_mask */ 524 0x007fff80, /* dst_mask */ 525 TRUE), /* pcrel_offset */ 526 HOWTO (R_C6000_PCR_L16, /* type */ 527 0, /* rightshift */ 528 2, /* size (0 = byte, 1 = short, 2 = long) */ 529 16, /* bitsize */ 530 TRUE, /* pc_relative */ 531 7, /* bitpos */ 532 complain_overflow_dont,/* complain_on_overflow */ 533 bfd_elf_generic_reloc, /* special_function */ 534 "R_C6000_PCR_L16", /* name */ 535 FALSE, /* partial_inplace */ 536 0, /* src_mask */ 537 0x007fff80, /* dst_mask */ 538 TRUE), /* pcrel_offset */ 539 EMPTY_HOWTO (31), 540 EMPTY_HOWTO (32), 541 EMPTY_HOWTO (33), 542 EMPTY_HOWTO (34), 543 EMPTY_HOWTO (35), 544 EMPTY_HOWTO (36), 545 EMPTY_HOWTO (37), 546 EMPTY_HOWTO (38), 547 EMPTY_HOWTO (39), 548 EMPTY_HOWTO (40), 549 EMPTY_HOWTO (41), 550 EMPTY_HOWTO (42), 551 EMPTY_HOWTO (43), 552 EMPTY_HOWTO (44), 553 EMPTY_HOWTO (45), 554 EMPTY_HOWTO (46), 555 EMPTY_HOWTO (47), 556 EMPTY_HOWTO (48), 557 EMPTY_HOWTO (49), 558 EMPTY_HOWTO (50), 559 EMPTY_HOWTO (51), 560 EMPTY_HOWTO (52), 561 EMPTY_HOWTO (53), 562 EMPTY_HOWTO (54), 563 EMPTY_HOWTO (55), 564 EMPTY_HOWTO (56), 565 EMPTY_HOWTO (57), 566 EMPTY_HOWTO (58), 567 EMPTY_HOWTO (59), 568 EMPTY_HOWTO (60), 569 EMPTY_HOWTO (61), 570 EMPTY_HOWTO (62), 571 EMPTY_HOWTO (63), 572 EMPTY_HOWTO (64), 573 EMPTY_HOWTO (65), 574 EMPTY_HOWTO (66), 575 EMPTY_HOWTO (67), 576 EMPTY_HOWTO (68), 577 EMPTY_HOWTO (69), 578 EMPTY_HOWTO (70), 579 EMPTY_HOWTO (71), 580 EMPTY_HOWTO (72), 581 EMPTY_HOWTO (73), 582 EMPTY_HOWTO (74), 583 EMPTY_HOWTO (75), 584 EMPTY_HOWTO (76), 585 EMPTY_HOWTO (77), 586 EMPTY_HOWTO (78), 587 EMPTY_HOWTO (79), 588 EMPTY_HOWTO (80), 589 EMPTY_HOWTO (81), 590 EMPTY_HOWTO (82), 591 EMPTY_HOWTO (83), 592 EMPTY_HOWTO (84), 593 EMPTY_HOWTO (85), 594 EMPTY_HOWTO (86), 595 EMPTY_HOWTO (87), 596 EMPTY_HOWTO (88), 597 EMPTY_HOWTO (89), 598 EMPTY_HOWTO (90), 599 EMPTY_HOWTO (91), 600 EMPTY_HOWTO (92), 601 EMPTY_HOWTO (93), 602 EMPTY_HOWTO (94), 603 EMPTY_HOWTO (95), 604 EMPTY_HOWTO (96), 605 EMPTY_HOWTO (97), 606 EMPTY_HOWTO (98), 607 EMPTY_HOWTO (99), 608 EMPTY_HOWTO (100), 609 EMPTY_HOWTO (101), 610 EMPTY_HOWTO (102), 611 EMPTY_HOWTO (103), 612 EMPTY_HOWTO (104), 613 EMPTY_HOWTO (105), 614 EMPTY_HOWTO (106), 615 EMPTY_HOWTO (107), 616 EMPTY_HOWTO (108), 617 EMPTY_HOWTO (109), 618 EMPTY_HOWTO (110), 619 EMPTY_HOWTO (111), 620 EMPTY_HOWTO (112), 621 EMPTY_HOWTO (113), 622 EMPTY_HOWTO (114), 623 EMPTY_HOWTO (115), 624 EMPTY_HOWTO (116), 625 EMPTY_HOWTO (117), 626 EMPTY_HOWTO (118), 627 EMPTY_HOWTO (119), 628 EMPTY_HOWTO (120), 629 EMPTY_HOWTO (121), 630 EMPTY_HOWTO (122), 631 EMPTY_HOWTO (123), 632 EMPTY_HOWTO (124), 633 EMPTY_HOWTO (125), 634 EMPTY_HOWTO (126), 635 EMPTY_HOWTO (127), 636 EMPTY_HOWTO (128), 637 EMPTY_HOWTO (129), 638 EMPTY_HOWTO (130), 639 EMPTY_HOWTO (131), 640 EMPTY_HOWTO (132), 641 EMPTY_HOWTO (133), 642 EMPTY_HOWTO (134), 643 EMPTY_HOWTO (135), 644 EMPTY_HOWTO (136), 645 EMPTY_HOWTO (137), 646 EMPTY_HOWTO (138), 647 EMPTY_HOWTO (139), 648 EMPTY_HOWTO (140), 649 EMPTY_HOWTO (141), 650 EMPTY_HOWTO (142), 651 EMPTY_HOWTO (143), 652 EMPTY_HOWTO (144), 653 EMPTY_HOWTO (145), 654 EMPTY_HOWTO (146), 655 EMPTY_HOWTO (147), 656 EMPTY_HOWTO (148), 657 EMPTY_HOWTO (149), 658 EMPTY_HOWTO (150), 659 EMPTY_HOWTO (151), 660 EMPTY_HOWTO (152), 661 EMPTY_HOWTO (153), 662 EMPTY_HOWTO (154), 663 EMPTY_HOWTO (155), 664 EMPTY_HOWTO (156), 665 EMPTY_HOWTO (157), 666 EMPTY_HOWTO (158), 667 EMPTY_HOWTO (159), 668 EMPTY_HOWTO (160), 669 EMPTY_HOWTO (161), 670 EMPTY_HOWTO (162), 671 EMPTY_HOWTO (163), 672 EMPTY_HOWTO (164), 673 EMPTY_HOWTO (165), 674 EMPTY_HOWTO (166), 675 EMPTY_HOWTO (167), 676 EMPTY_HOWTO (168), 677 EMPTY_HOWTO (169), 678 EMPTY_HOWTO (170), 679 EMPTY_HOWTO (171), 680 EMPTY_HOWTO (172), 681 EMPTY_HOWTO (173), 682 EMPTY_HOWTO (174), 683 EMPTY_HOWTO (175), 684 EMPTY_HOWTO (176), 685 EMPTY_HOWTO (177), 686 EMPTY_HOWTO (178), 687 EMPTY_HOWTO (179), 688 EMPTY_HOWTO (180), 689 EMPTY_HOWTO (181), 690 EMPTY_HOWTO (182), 691 EMPTY_HOWTO (183), 692 EMPTY_HOWTO (184), 693 EMPTY_HOWTO (185), 694 EMPTY_HOWTO (186), 695 EMPTY_HOWTO (187), 696 EMPTY_HOWTO (188), 697 EMPTY_HOWTO (189), 698 EMPTY_HOWTO (190), 699 EMPTY_HOWTO (191), 700 EMPTY_HOWTO (192), 701 EMPTY_HOWTO (193), 702 EMPTY_HOWTO (194), 703 EMPTY_HOWTO (195), 704 EMPTY_HOWTO (196), 705 EMPTY_HOWTO (197), 706 EMPTY_HOWTO (198), 707 EMPTY_HOWTO (199), 708 EMPTY_HOWTO (200), 709 EMPTY_HOWTO (201), 710 EMPTY_HOWTO (202), 711 EMPTY_HOWTO (203), 712 EMPTY_HOWTO (204), 713 EMPTY_HOWTO (205), 714 EMPTY_HOWTO (206), 715 EMPTY_HOWTO (207), 716 EMPTY_HOWTO (208), 717 EMPTY_HOWTO (209), 718 EMPTY_HOWTO (210), 719 EMPTY_HOWTO (211), 720 EMPTY_HOWTO (212), 721 EMPTY_HOWTO (213), 722 EMPTY_HOWTO (214), 723 EMPTY_HOWTO (215), 724 EMPTY_HOWTO (216), 725 EMPTY_HOWTO (217), 726 EMPTY_HOWTO (218), 727 EMPTY_HOWTO (219), 728 EMPTY_HOWTO (220), 729 EMPTY_HOWTO (221), 730 EMPTY_HOWTO (222), 731 EMPTY_HOWTO (223), 732 EMPTY_HOWTO (224), 733 EMPTY_HOWTO (225), 734 EMPTY_HOWTO (226), 735 EMPTY_HOWTO (227), 736 EMPTY_HOWTO (228), 737 EMPTY_HOWTO (229), 738 EMPTY_HOWTO (230), 739 EMPTY_HOWTO (231), 740 EMPTY_HOWTO (232), 741 EMPTY_HOWTO (233), 742 EMPTY_HOWTO (234), 743 EMPTY_HOWTO (235), 744 EMPTY_HOWTO (236), 745 EMPTY_HOWTO (237), 746 EMPTY_HOWTO (238), 747 EMPTY_HOWTO (239), 748 EMPTY_HOWTO (240), 749 EMPTY_HOWTO (241), 750 EMPTY_HOWTO (242), 751 EMPTY_HOWTO (243), 752 EMPTY_HOWTO (244), 753 EMPTY_HOWTO (245), 754 EMPTY_HOWTO (246), 755 EMPTY_HOWTO (247), 756 EMPTY_HOWTO (248), 757 EMPTY_HOWTO (249), 758 EMPTY_HOWTO (250), 759 EMPTY_HOWTO (251), 760 EMPTY_HOWTO (252), 761 HOWTO (R_C6000_ALIGN, /* type */ 762 0, /* rightshift */ 763 0, /* size (0 = byte, 1 = short, 2 = long) */ 764 0, /* bitsize */ 765 FALSE, /* pc_relative */ 766 0, /* bitpos */ 767 complain_overflow_dont,/* complain_on_overflow */ 768 bfd_elf_generic_reloc, /* special_function */ 769 "R_C6000_ALIGN", /* name */ 770 FALSE, /* partial_inplace */ 771 0, /* src_mask */ 772 0, /* dst_mask */ 773 FALSE), /* pcrel_offset */ 774 HOWTO (R_C6000_FPHEAD, /* type */ 775 0, /* rightshift */ 776 0, /* size (0 = byte, 1 = short, 2 = long) */ 777 0, /* bitsize */ 778 FALSE, /* pc_relative */ 779 0, /* bitpos */ 780 complain_overflow_dont,/* complain_on_overflow */ 781 bfd_elf_generic_reloc, /* special_function */ 782 "R_C6000_FPHEAD", /* name */ 783 FALSE, /* partial_inplace */ 784 0, /* src_mask */ 785 0, /* dst_mask */ 786 FALSE), /* pcrel_offset */ 787 HOWTO (R_C6000_NOCMP, /* type */ 788 0, /* rightshift */ 789 0, /* size (0 = byte, 1 = short, 2 = long) */ 790 0, /* bitsize */ 791 FALSE, /* pc_relative */ 792 0, /* bitpos */ 793 complain_overflow_dont,/* complain_on_overflow */ 794 bfd_elf_generic_reloc, /* special_function */ 795 "R_C6000_NOCMP", /* name */ 796 FALSE, /* partial_inplace */ 797 0, /* src_mask */ 798 0, /* dst_mask */ 799 FALSE) /* pcrel_offset */ 800 }; 801 802 static reloc_howto_type elf32_tic6x_howto_table_rel[] = 803 { 804 HOWTO (R_C6000_NONE, /* type */ 805 0, /* rightshift */ 806 3, /* size (0 = byte, 1 = short, 2 = long) */ 807 0, /* bitsize */ 808 FALSE, /* pc_relative */ 809 0, /* bitpos */ 810 complain_overflow_dont,/* complain_on_overflow */ 811 bfd_elf_generic_reloc, /* special_function */ 812 "R_C6000_NONE", /* name */ 813 TRUE, /* partial_inplace */ 814 0, /* src_mask */ 815 0, /* dst_mask */ 816 FALSE), /* pcrel_offset */ 817 HOWTO (R_C6000_ABS32, /* type */ 818 0, /* rightshift */ 819 2, /* size (0 = byte, 1 = short, 2 = long) */ 820 32, /* bitsize */ 821 FALSE, /* pc_relative */ 822 0, /* bitpos */ 823 complain_overflow_dont,/* complain_on_overflow */ 824 bfd_elf_generic_reloc, /* special_function */ 825 "R_C6000_ABS32", /* name */ 826 TRUE, /* partial_inplace */ 827 0xffffffff, /* src_mask */ 828 0xffffffff, /* dst_mask */ 829 FALSE), /* pcrel_offset */ 830 HOWTO (R_C6000_ABS16, /* type */ 831 0, /* rightshift */ 832 1, /* size (0 = byte, 1 = short, 2 = long) */ 833 16, /* bitsize */ 834 FALSE, /* pc_relative */ 835 0, /* bitpos */ 836 complain_overflow_bitfield,/* complain_on_overflow */ 837 bfd_elf_generic_reloc, /* special_function */ 838 "R_C6000_ABS16", /* name */ 839 TRUE, /* partial_inplace */ 840 0x0000ffff, /* src_mask */ 841 0x0000ffff, /* dst_mask */ 842 FALSE), /* pcrel_offset */ 843 HOWTO (R_C6000_ABS8, /* type */ 844 0, /* rightshift */ 845 0, /* size (0 = byte, 1 = short, 2 = long) */ 846 8, /* bitsize */ 847 FALSE, /* pc_relative */ 848 0, /* bitpos */ 849 complain_overflow_bitfield,/* complain_on_overflow */ 850 bfd_elf_generic_reloc, /* special_function */ 851 "R_C6000_ABS8", /* name */ 852 TRUE, /* partial_inplace */ 853 0x000000ff, /* src_mask */ 854 0x000000ff, /* dst_mask */ 855 FALSE), /* pcrel_offset */ 856 HOWTO (R_C6000_PCR_S21, /* type */ 857 2, /* rightshift */ 858 2, /* size (0 = byte, 1 = short, 2 = long) */ 859 21, /* bitsize */ 860 TRUE, /* pc_relative */ 861 7, /* bitpos */ 862 complain_overflow_signed,/* complain_on_overflow */ 863 bfd_elf_generic_reloc, /* special_function */ 864 "R_C6000_PCR_S21", /* name */ 865 TRUE, /* partial_inplace */ 866 0x0fffff80, /* src_mask */ 867 0x0fffff80, /* dst_mask */ 868 TRUE), /* pcrel_offset */ 869 HOWTO (R_C6000_PCR_S12, /* type */ 870 2, /* rightshift */ 871 2, /* size (0 = byte, 1 = short, 2 = long) */ 872 12, /* bitsize */ 873 TRUE, /* pc_relative */ 874 16, /* bitpos */ 875 complain_overflow_signed,/* complain_on_overflow */ 876 bfd_elf_generic_reloc, /* special_function */ 877 "R_C6000_PCR_S12", /* name */ 878 TRUE, /* partial_inplace */ 879 0x0fff0000, /* src_mask */ 880 0x0fff0000, /* dst_mask */ 881 TRUE), /* pcrel_offset */ 882 HOWTO (R_C6000_PCR_S10, /* type */ 883 2, /* rightshift */ 884 2, /* size (0 = byte, 1 = short, 2 = long) */ 885 10, /* bitsize */ 886 TRUE, /* pc_relative */ 887 13, /* bitpos */ 888 complain_overflow_signed,/* complain_on_overflow */ 889 bfd_elf_generic_reloc, /* special_function */ 890 "R_C6000_PCR_S10", /* name */ 891 TRUE, /* partial_inplace */ 892 0x007fe000, /* src_mask */ 893 0x007fe000, /* dst_mask */ 894 TRUE), /* pcrel_offset */ 895 HOWTO (R_C6000_PCR_S7, /* type */ 896 2, /* rightshift */ 897 2, /* size (0 = byte, 1 = short, 2 = long) */ 898 7, /* bitsize */ 899 TRUE, /* pc_relative */ 900 16, /* bitpos */ 901 complain_overflow_signed,/* complain_on_overflow */ 902 bfd_elf_generic_reloc, /* special_function */ 903 "R_C6000_PCR_S7", /* name */ 904 TRUE, /* partial_inplace */ 905 0x007f0000, /* src_mask */ 906 0x007f0000, /* dst_mask */ 907 TRUE), /* pcrel_offset */ 908 HOWTO (R_C6000_ABS_S16, /* type */ 909 0, /* rightshift */ 910 2, /* size (0 = byte, 1 = short, 2 = long) */ 911 16, /* bitsize */ 912 FALSE, /* pc_relative */ 913 7, /* bitpos */ 914 complain_overflow_signed,/* complain_on_overflow */ 915 bfd_elf_generic_reloc, /* special_function */ 916 "R_C6000_ABS_S16", /* name */ 917 TRUE, /* partial_inplace */ 918 0x007fff80, /* src_mask */ 919 0x007fff80, /* dst_mask */ 920 FALSE), /* pcrel_offset */ 921 HOWTO (R_C6000_ABS_L16, /* type */ 922 0, /* rightshift */ 923 2, /* size (0 = byte, 1 = short, 2 = long) */ 924 16, /* bitsize */ 925 FALSE, /* pc_relative */ 926 7, /* bitpos */ 927 complain_overflow_dont,/* complain_on_overflow */ 928 bfd_elf_generic_reloc, /* special_function */ 929 "R_C6000_ABS_L16", /* name */ 930 TRUE, /* partial_inplace */ 931 0x007fff80, /* src_mask */ 932 0x007fff80, /* dst_mask */ 933 FALSE), /* pcrel_offset */ 934 EMPTY_HOWTO (R_C6000_ABS_H16), 935 HOWTO (R_C6000_SBR_U15_B, /* type */ 936 0, /* rightshift */ 937 2, /* size (0 = byte, 1 = short, 2 = long) */ 938 15, /* bitsize */ 939 FALSE, /* pc_relative */ 940 8, /* bitpos */ 941 complain_overflow_unsigned,/* complain_on_overflow */ 942 bfd_elf_generic_reloc, /* special_function */ 943 "R_C6000_SBR_U15_B", /* name */ 944 TRUE, /* partial_inplace */ 945 0x007fff00, /* src_mask */ 946 0x007fff00, /* dst_mask */ 947 FALSE), /* pcrel_offset */ 948 HOWTO (R_C6000_SBR_U15_H, /* type */ 949 1, /* rightshift */ 950 2, /* size (0 = byte, 1 = short, 2 = long) */ 951 15, /* bitsize */ 952 FALSE, /* pc_relative */ 953 8, /* bitpos */ 954 complain_overflow_unsigned,/* complain_on_overflow */ 955 bfd_elf_generic_reloc, /* special_function */ 956 "R_C6000_SBR_U15_H", /* name */ 957 TRUE, /* partial_inplace */ 958 0x007fff00, /* src_mask */ 959 0x007fff00, /* dst_mask */ 960 FALSE), /* pcrel_offset */ 961 HOWTO (R_C6000_SBR_U15_W, /* type */ 962 2, /* rightshift */ 963 2, /* size (0 = byte, 1 = short, 2 = long) */ 964 15, /* bitsize */ 965 FALSE, /* pc_relative */ 966 8, /* bitpos */ 967 complain_overflow_unsigned,/* complain_on_overflow */ 968 bfd_elf_generic_reloc, /* special_function */ 969 "R_C6000_SBR_U15_W", /* name */ 970 TRUE, /* partial_inplace */ 971 0x007fff00, /* src_mask */ 972 0x007fff00, /* dst_mask */ 973 FALSE), /* pcrel_offset */ 974 HOWTO (R_C6000_SBR_S16, /* type */ 975 0, /* rightshift */ 976 2, /* size (0 = byte, 1 = short, 2 = long) */ 977 16, /* bitsize */ 978 FALSE, /* pc_relative */ 979 7, /* bitpos */ 980 complain_overflow_signed,/* complain_on_overflow */ 981 bfd_elf_generic_reloc, /* special_function */ 982 "R_C6000_SBR_S16", /* name */ 983 TRUE, /* partial_inplace */ 984 0x007fff80, /* src_mask */ 985 0x007fff80, /* dst_mask */ 986 FALSE), /* pcrel_offset */ 987 HOWTO (R_C6000_SBR_L16_B, /* type */ 988 0, /* rightshift */ 989 2, /* size (0 = byte, 1 = short, 2 = long) */ 990 16, /* bitsize */ 991 FALSE, /* pc_relative */ 992 7, /* bitpos */ 993 complain_overflow_dont,/* complain_on_overflow */ 994 bfd_elf_generic_reloc, /* special_function */ 995 "R_C6000_SBR_L16_B", /* name */ 996 TRUE, /* partial_inplace */ 997 0x007fff80, /* src_mask */ 998 0x007fff80, /* dst_mask */ 999 FALSE), /* pcrel_offset */ 1000 HOWTO (R_C6000_SBR_L16_H, /* type */ 1001 1, /* rightshift */ 1002 2, /* size (0 = byte, 1 = short, 2 = long) */ 1003 16, /* bitsize */ 1004 FALSE, /* pc_relative */ 1005 7, /* bitpos */ 1006 complain_overflow_dont,/* complain_on_overflow */ 1007 bfd_elf_generic_reloc, /* special_function */ 1008 "R_C6000_SBR_L16_H", /* name */ 1009 TRUE, /* partial_inplace */ 1010 0x007fff80, /* src_mask */ 1011 0x007fff80, /* dst_mask */ 1012 FALSE), /* pcrel_offset */ 1013 HOWTO (R_C6000_SBR_L16_W, /* type */ 1014 2, /* rightshift */ 1015 2, /* size (0 = byte, 1 = short, 2 = long) */ 1016 16, /* bitsize */ 1017 FALSE, /* pc_relative */ 1018 7, /* bitpos */ 1019 complain_overflow_dont,/* complain_on_overflow */ 1020 bfd_elf_generic_reloc, /* special_function */ 1021 "R_C6000_SBR_L16_W", /* name */ 1022 TRUE, /* partial_inplace */ 1023 0x007fff80, /* src_mask */ 1024 0x007fff80, /* dst_mask */ 1025 FALSE), /* pcrel_offset */ 1026 EMPTY_HOWTO (R_C6000_SBR_H16_B), 1027 EMPTY_HOWTO (R_C6000_SBR_H16_H), 1028 EMPTY_HOWTO (R_C6000_SBR_H16_W), 1029 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ 1030 2, /* rightshift */ 1031 2, /* size (0 = byte, 1 = short, 2 = long) */ 1032 15, /* bitsize */ 1033 FALSE, /* pc_relative */ 1034 8, /* bitpos */ 1035 complain_overflow_unsigned,/* complain_on_overflow */ 1036 bfd_elf_generic_reloc, /* special_function */ 1037 "R_C6000_SBR_GOT_U15_W",/* name */ 1038 TRUE, /* partial_inplace */ 1039 0x007fff00, /* src_mask */ 1040 0x007fff00, /* dst_mask */ 1041 FALSE), /* pcrel_offset */ 1042 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ 1043 2, /* rightshift */ 1044 2, /* size (0 = byte, 1 = short, 2 = long) */ 1045 16, /* bitsize */ 1046 FALSE, /* pc_relative */ 1047 7, /* bitpos */ 1048 complain_overflow_dont,/* complain_on_overflow */ 1049 bfd_elf_generic_reloc, /* special_function */ 1050 "R_C6000_SBR_GOT_L16_W",/* name */ 1051 TRUE, /* partial_inplace */ 1052 0x007fff80, /* src_mask */ 1053 0x007fff80, /* dst_mask */ 1054 FALSE), /* pcrel_offset */ 1055 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W), 1056 HOWTO (R_C6000_DSBT_INDEX, /* type */ 1057 0, /* rightshift */ 1058 2, /* size (0 = byte, 1 = short, 2 = long) */ 1059 15, /* bitsize */ 1060 FALSE, /* pc_relative */ 1061 8, /* bitpos */ 1062 complain_overflow_unsigned,/* complain_on_overflow */ 1063 bfd_elf_generic_reloc, /* special_function */ 1064 "R_C6000_DSBT_INDEX", /* name */ 1065 TRUE, /* partial_inplace */ 1066 0, /* src_mask */ 1067 0x007fff00, /* dst_mask */ 1068 FALSE), /* pcrel_offset */ 1069 HOWTO (R_C6000_PREL31, /* type */ 1070 1, /* rightshift */ 1071 2, /* size (0 = byte, 1 = short, 2 = long) */ 1072 31, /* bitsize */ 1073 TRUE, /* pc_relative */ 1074 0, /* bitpos */ 1075 complain_overflow_dont,/* complain_on_overflow */ 1076 bfd_elf_generic_reloc, /* special_function */ 1077 "R_C6000_PREL31", /* name */ 1078 TRUE, /* partial_inplace */ 1079 0, /* src_mask */ 1080 0x7fffffff, /* dst_mask */ 1081 TRUE), /* pcrel_offset */ 1082 HOWTO (R_C6000_COPY, /* type */ 1083 0, /* rightshift */ 1084 2, /* size (0 = byte, 1 = short, 2 = long) */ 1085 32, /* bitsize */ 1086 FALSE, /* pc_relative */ 1087 0, /* bitpos */ 1088 complain_overflow_dont,/* complain_on_overflow */ 1089 bfd_elf_generic_reloc, /* special_function */ 1090 "R_C6000_COPY", /* name */ 1091 TRUE, /* partial_inplace */ 1092 0, /* src_mask */ 1093 0xffffffff, /* dst_mask */ 1094 FALSE), /* pcrel_offset */ 1095 HOWTO (R_C6000_JUMP_SLOT, /* type */ 1096 0, /* rightshift */ 1097 2, /* size (0 = byte, 1 = short, 2 = long) */ 1098 32, /* bitsize */ 1099 FALSE, /* pc_relative */ 1100 0, /* bitpos */ 1101 complain_overflow_dont,/* complain_on_overflow */ 1102 bfd_elf_generic_reloc, /* special_function */ 1103 "R_C6000_JUMP_SLOT", /* name */ 1104 FALSE, /* partial_inplace */ 1105 0, /* src_mask */ 1106 0xffffffff, /* dst_mask */ 1107 FALSE), /* pcrel_offset */ 1108 HOWTO (R_C6000_EHTYPE, /* type */ 1109 0, /* rightshift */ 1110 2, /* size (0 = byte, 1 = short, 2 = long) */ 1111 32, /* bitsize */ 1112 FALSE, /* pc_relative */ 1113 0, /* bitpos */ 1114 complain_overflow_dont,/* complain_on_overflow */ 1115 bfd_elf_generic_reloc, /* special_function */ 1116 "R_C6000_EHTYPE", /* name */ 1117 FALSE, /* partial_inplace */ 1118 0, /* src_mask */ 1119 0xffffffff, /* dst_mask */ 1120 FALSE), /* pcrel_offset */ 1121 EMPTY_HOWTO (R_C6000_PCR_H16), 1122 EMPTY_HOWTO (R_C6000_PCR_L16), 1123 EMPTY_HOWTO (31), 1124 EMPTY_HOWTO (32), 1125 EMPTY_HOWTO (33), 1126 EMPTY_HOWTO (34), 1127 EMPTY_HOWTO (35), 1128 EMPTY_HOWTO (36), 1129 EMPTY_HOWTO (37), 1130 EMPTY_HOWTO (38), 1131 EMPTY_HOWTO (39), 1132 EMPTY_HOWTO (40), 1133 EMPTY_HOWTO (41), 1134 EMPTY_HOWTO (42), 1135 EMPTY_HOWTO (43), 1136 EMPTY_HOWTO (44), 1137 EMPTY_HOWTO (45), 1138 EMPTY_HOWTO (46), 1139 EMPTY_HOWTO (47), 1140 EMPTY_HOWTO (48), 1141 EMPTY_HOWTO (49), 1142 EMPTY_HOWTO (50), 1143 EMPTY_HOWTO (51), 1144 EMPTY_HOWTO (52), 1145 EMPTY_HOWTO (53), 1146 EMPTY_HOWTO (54), 1147 EMPTY_HOWTO (55), 1148 EMPTY_HOWTO (56), 1149 EMPTY_HOWTO (57), 1150 EMPTY_HOWTO (58), 1151 EMPTY_HOWTO (59), 1152 EMPTY_HOWTO (60), 1153 EMPTY_HOWTO (61), 1154 EMPTY_HOWTO (62), 1155 EMPTY_HOWTO (63), 1156 EMPTY_HOWTO (64), 1157 EMPTY_HOWTO (65), 1158 EMPTY_HOWTO (66), 1159 EMPTY_HOWTO (67), 1160 EMPTY_HOWTO (68), 1161 EMPTY_HOWTO (69), 1162 EMPTY_HOWTO (70), 1163 EMPTY_HOWTO (71), 1164 EMPTY_HOWTO (72), 1165 EMPTY_HOWTO (73), 1166 EMPTY_HOWTO (74), 1167 EMPTY_HOWTO (75), 1168 EMPTY_HOWTO (76), 1169 EMPTY_HOWTO (77), 1170 EMPTY_HOWTO (78), 1171 EMPTY_HOWTO (79), 1172 EMPTY_HOWTO (80), 1173 EMPTY_HOWTO (81), 1174 EMPTY_HOWTO (82), 1175 EMPTY_HOWTO (83), 1176 EMPTY_HOWTO (84), 1177 EMPTY_HOWTO (85), 1178 EMPTY_HOWTO (86), 1179 EMPTY_HOWTO (87), 1180 EMPTY_HOWTO (88), 1181 EMPTY_HOWTO (89), 1182 EMPTY_HOWTO (90), 1183 EMPTY_HOWTO (91), 1184 EMPTY_HOWTO (92), 1185 EMPTY_HOWTO (93), 1186 EMPTY_HOWTO (94), 1187 EMPTY_HOWTO (95), 1188 EMPTY_HOWTO (96), 1189 EMPTY_HOWTO (97), 1190 EMPTY_HOWTO (98), 1191 EMPTY_HOWTO (99), 1192 EMPTY_HOWTO (100), 1193 EMPTY_HOWTO (101), 1194 EMPTY_HOWTO (102), 1195 EMPTY_HOWTO (103), 1196 EMPTY_HOWTO (104), 1197 EMPTY_HOWTO (105), 1198 EMPTY_HOWTO (106), 1199 EMPTY_HOWTO (107), 1200 EMPTY_HOWTO (108), 1201 EMPTY_HOWTO (109), 1202 EMPTY_HOWTO (110), 1203 EMPTY_HOWTO (111), 1204 EMPTY_HOWTO (112), 1205 EMPTY_HOWTO (113), 1206 EMPTY_HOWTO (114), 1207 EMPTY_HOWTO (115), 1208 EMPTY_HOWTO (116), 1209 EMPTY_HOWTO (117), 1210 EMPTY_HOWTO (118), 1211 EMPTY_HOWTO (119), 1212 EMPTY_HOWTO (120), 1213 EMPTY_HOWTO (121), 1214 EMPTY_HOWTO (122), 1215 EMPTY_HOWTO (123), 1216 EMPTY_HOWTO (124), 1217 EMPTY_HOWTO (125), 1218 EMPTY_HOWTO (126), 1219 EMPTY_HOWTO (127), 1220 EMPTY_HOWTO (128), 1221 EMPTY_HOWTO (129), 1222 EMPTY_HOWTO (130), 1223 EMPTY_HOWTO (131), 1224 EMPTY_HOWTO (132), 1225 EMPTY_HOWTO (133), 1226 EMPTY_HOWTO (134), 1227 EMPTY_HOWTO (135), 1228 EMPTY_HOWTO (136), 1229 EMPTY_HOWTO (137), 1230 EMPTY_HOWTO (138), 1231 EMPTY_HOWTO (139), 1232 EMPTY_HOWTO (140), 1233 EMPTY_HOWTO (141), 1234 EMPTY_HOWTO (142), 1235 EMPTY_HOWTO (143), 1236 EMPTY_HOWTO (144), 1237 EMPTY_HOWTO (145), 1238 EMPTY_HOWTO (146), 1239 EMPTY_HOWTO (147), 1240 EMPTY_HOWTO (148), 1241 EMPTY_HOWTO (149), 1242 EMPTY_HOWTO (150), 1243 EMPTY_HOWTO (151), 1244 EMPTY_HOWTO (152), 1245 EMPTY_HOWTO (153), 1246 EMPTY_HOWTO (154), 1247 EMPTY_HOWTO (155), 1248 EMPTY_HOWTO (156), 1249 EMPTY_HOWTO (157), 1250 EMPTY_HOWTO (158), 1251 EMPTY_HOWTO (159), 1252 EMPTY_HOWTO (160), 1253 EMPTY_HOWTO (161), 1254 EMPTY_HOWTO (162), 1255 EMPTY_HOWTO (163), 1256 EMPTY_HOWTO (164), 1257 EMPTY_HOWTO (165), 1258 EMPTY_HOWTO (166), 1259 EMPTY_HOWTO (167), 1260 EMPTY_HOWTO (168), 1261 EMPTY_HOWTO (169), 1262 EMPTY_HOWTO (170), 1263 EMPTY_HOWTO (171), 1264 EMPTY_HOWTO (172), 1265 EMPTY_HOWTO (173), 1266 EMPTY_HOWTO (174), 1267 EMPTY_HOWTO (175), 1268 EMPTY_HOWTO (176), 1269 EMPTY_HOWTO (177), 1270 EMPTY_HOWTO (178), 1271 EMPTY_HOWTO (179), 1272 EMPTY_HOWTO (180), 1273 EMPTY_HOWTO (181), 1274 EMPTY_HOWTO (182), 1275 EMPTY_HOWTO (183), 1276 EMPTY_HOWTO (184), 1277 EMPTY_HOWTO (185), 1278 EMPTY_HOWTO (186), 1279 EMPTY_HOWTO (187), 1280 EMPTY_HOWTO (188), 1281 EMPTY_HOWTO (189), 1282 EMPTY_HOWTO (190), 1283 EMPTY_HOWTO (191), 1284 EMPTY_HOWTO (192), 1285 EMPTY_HOWTO (193), 1286 EMPTY_HOWTO (194), 1287 EMPTY_HOWTO (195), 1288 EMPTY_HOWTO (196), 1289 EMPTY_HOWTO (197), 1290 EMPTY_HOWTO (198), 1291 EMPTY_HOWTO (199), 1292 EMPTY_HOWTO (200), 1293 EMPTY_HOWTO (201), 1294 EMPTY_HOWTO (202), 1295 EMPTY_HOWTO (203), 1296 EMPTY_HOWTO (204), 1297 EMPTY_HOWTO (205), 1298 EMPTY_HOWTO (206), 1299 EMPTY_HOWTO (207), 1300 EMPTY_HOWTO (208), 1301 EMPTY_HOWTO (209), 1302 EMPTY_HOWTO (210), 1303 EMPTY_HOWTO (211), 1304 EMPTY_HOWTO (212), 1305 EMPTY_HOWTO (213), 1306 EMPTY_HOWTO (214), 1307 EMPTY_HOWTO (215), 1308 EMPTY_HOWTO (216), 1309 EMPTY_HOWTO (217), 1310 EMPTY_HOWTO (218), 1311 EMPTY_HOWTO (219), 1312 EMPTY_HOWTO (220), 1313 EMPTY_HOWTO (221), 1314 EMPTY_HOWTO (222), 1315 EMPTY_HOWTO (223), 1316 EMPTY_HOWTO (224), 1317 EMPTY_HOWTO (225), 1318 EMPTY_HOWTO (226), 1319 EMPTY_HOWTO (227), 1320 EMPTY_HOWTO (228), 1321 EMPTY_HOWTO (229), 1322 EMPTY_HOWTO (230), 1323 EMPTY_HOWTO (231), 1324 EMPTY_HOWTO (232), 1325 EMPTY_HOWTO (233), 1326 EMPTY_HOWTO (234), 1327 EMPTY_HOWTO (235), 1328 EMPTY_HOWTO (236), 1329 EMPTY_HOWTO (237), 1330 EMPTY_HOWTO (238), 1331 EMPTY_HOWTO (239), 1332 EMPTY_HOWTO (240), 1333 EMPTY_HOWTO (241), 1334 EMPTY_HOWTO (242), 1335 EMPTY_HOWTO (243), 1336 EMPTY_HOWTO (244), 1337 EMPTY_HOWTO (245), 1338 EMPTY_HOWTO (246), 1339 EMPTY_HOWTO (247), 1340 EMPTY_HOWTO (248), 1341 EMPTY_HOWTO (249), 1342 EMPTY_HOWTO (250), 1343 EMPTY_HOWTO (251), 1344 EMPTY_HOWTO (252), 1345 HOWTO (R_C6000_ALIGN, /* type */ 1346 0, /* rightshift */ 1347 0, /* size (0 = byte, 1 = short, 2 = long) */ 1348 0, /* bitsize */ 1349 FALSE, /* pc_relative */ 1350 0, /* bitpos */ 1351 complain_overflow_dont,/* complain_on_overflow */ 1352 bfd_elf_generic_reloc, /* special_function */ 1353 "R_C6000_ALIGN", /* name */ 1354 TRUE, /* partial_inplace */ 1355 0, /* src_mask */ 1356 0, /* dst_mask */ 1357 FALSE), /* pcrel_offset */ 1358 HOWTO (R_C6000_FPHEAD, /* type */ 1359 0, /* rightshift */ 1360 0, /* size (0 = byte, 1 = short, 2 = long) */ 1361 0, /* bitsize */ 1362 FALSE, /* pc_relative */ 1363 0, /* bitpos */ 1364 complain_overflow_dont,/* complain_on_overflow */ 1365 bfd_elf_generic_reloc, /* special_function */ 1366 "R_C6000_FPHEAD", /* name */ 1367 TRUE, /* partial_inplace */ 1368 0, /* src_mask */ 1369 0, /* dst_mask */ 1370 FALSE), /* pcrel_offset */ 1371 HOWTO (R_C6000_NOCMP, /* type */ 1372 0, /* rightshift */ 1373 0, /* size (0 = byte, 1 = short, 2 = long) */ 1374 0, /* bitsize */ 1375 FALSE, /* pc_relative */ 1376 0, /* bitpos */ 1377 complain_overflow_dont,/* complain_on_overflow */ 1378 bfd_elf_generic_reloc, /* special_function */ 1379 "R_C6000_NOCMP", /* name */ 1380 TRUE, /* partial_inplace */ 1381 0, /* src_mask */ 1382 0, /* dst_mask */ 1383 FALSE) /* pcrel_offset */ 1384 }; 1385 1386 /* Map BFD relocations to ELF relocations. */ 1387 1388 typedef struct 1389 { 1390 bfd_reloc_code_real_type bfd_reloc_val; 1391 enum elf_tic6x_reloc_type elf_reloc_val; 1392 } tic6x_reloc_map; 1393 1394 static const tic6x_reloc_map elf32_tic6x_reloc_map[] = 1395 { 1396 { BFD_RELOC_NONE, R_C6000_NONE }, 1397 { BFD_RELOC_32, R_C6000_ABS32 }, 1398 { BFD_RELOC_16, R_C6000_ABS16 }, 1399 { BFD_RELOC_8, R_C6000_ABS8 }, 1400 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 }, 1401 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 }, 1402 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 }, 1403 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 }, 1404 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 }, 1405 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 }, 1406 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 }, 1407 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B }, 1408 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H }, 1409 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W }, 1410 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 }, 1411 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B }, 1412 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H }, 1413 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W }, 1414 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B }, 1415 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H }, 1416 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W }, 1417 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W }, 1418 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W }, 1419 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W }, 1420 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX }, 1421 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 }, 1422 { BFD_RELOC_C6000_COPY, R_C6000_COPY }, 1423 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT }, 1424 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE }, 1425 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 }, 1426 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 }, 1427 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN }, 1428 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD }, 1429 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP } 1430 }; 1431 1432 static reloc_howto_type * 1433 elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) 1434 { 1435 unsigned int i; 1436 1437 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++) 1438 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code) 1439 { 1440 enum elf_tic6x_reloc_type elf_reloc_val; 1441 reloc_howto_type *howto; 1442 1443 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val; 1444 if (elf32_tic6x_tdata (abfd)->use_rela_p) 1445 howto = &elf32_tic6x_howto_table[elf_reloc_val]; 1446 else 1447 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val]; 1448 1449 /* Some relocations are RELA-only; do not return them for 1450 REL. */ 1451 if (howto->name == NULL) 1452 howto = NULL; 1453 1454 return howto; 1455 } 1456 1457 return NULL; 1458 } 1459 1460 static reloc_howto_type * 1461 elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name) 1462 { 1463 if (elf32_tic6x_tdata (abfd)->use_rela_p) 1464 { 1465 unsigned int i; 1466 1467 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++) 1468 if (elf32_tic6x_howto_table[i].name != NULL 1469 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0) 1470 return &elf32_tic6x_howto_table[i]; 1471 } 1472 else 1473 { 1474 unsigned int i; 1475 1476 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++) 1477 if (elf32_tic6x_howto_table_rel[i].name != NULL 1478 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0) 1479 return &elf32_tic6x_howto_table_rel[i]; 1480 } 1481 1482 return NULL; 1483 } 1484 1485 static bfd_boolean 1486 elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, 1487 Elf_Internal_Rela *elf_reloc) 1488 { 1489 unsigned int r_type; 1490 1491 r_type = ELF32_R_TYPE (elf_reloc->r_info); 1492 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table)) 1493 { 1494 /* xgettext:c-format */ 1495 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 1496 abfd, r_type); 1497 bfd_set_error (bfd_error_bad_value); 1498 return FALSE; 1499 } 1500 1501 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type]; 1502 if (bfd_reloc->howto == NULL || bfd_reloc->howto->name == NULL) 1503 { 1504 /* xgettext:c-format */ 1505 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 1506 abfd, r_type); 1507 bfd_set_error (bfd_error_bad_value); 1508 return FALSE; 1509 } 1510 1511 return TRUE; 1512 } 1513 1514 static bfd_boolean 1515 elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, 1516 Elf_Internal_Rela *elf_reloc) 1517 { 1518 unsigned int r_type; 1519 1520 r_type = ELF32_R_TYPE (elf_reloc->r_info); 1521 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel)) 1522 { 1523 /* xgettext:c-format */ 1524 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 1525 abfd, r_type); 1526 bfd_set_error (bfd_error_bad_value); 1527 return FALSE; 1528 } 1529 1530 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type]; 1531 if (bfd_reloc->howto == NULL || bfd_reloc->howto->name == NULL) 1532 { 1533 /* xgettext:c-format */ 1534 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 1535 abfd, r_type); 1536 bfd_set_error (bfd_error_bad_value); 1537 return FALSE; 1538 } 1539 1540 return TRUE; 1541 } 1542 1543 void 1544 elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p) 1545 { 1546 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p; 1547 } 1548 1549 /* Create a C6X ELF linker hash table. */ 1550 1551 static struct bfd_link_hash_table * 1552 elf32_tic6x_link_hash_table_create (bfd *abfd) 1553 { 1554 struct elf32_tic6x_link_hash_table *ret; 1555 size_t amt = sizeof (struct elf32_tic6x_link_hash_table); 1556 1557 ret = bfd_zmalloc (amt); 1558 if (ret == NULL) 1559 return NULL; 1560 1561 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, 1562 _bfd_elf_link_hash_newfunc, 1563 sizeof (struct elf_link_hash_entry), 1564 TIC6X_ELF_DATA)) 1565 { 1566 free (ret); 1567 return NULL; 1568 } 1569 1570 ret->obfd = abfd; 1571 ret->elf.is_relocatable_executable = 1; 1572 1573 return &ret->elf.root; 1574 } 1575 1576 static bfd_boolean 1577 elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info) 1578 { 1579 if (bfd_link_pic (info)) 1580 { 1581 obj_attribute *out_attr; 1582 out_attr = elf_known_obj_attributes_proc (abfd); 1583 if (out_attr[Tag_ABI_PIC].i == 0) 1584 { 1585 _bfd_error_handler (_("warning: generating a shared library " 1586 "containing non-PIC code")); 1587 } 1588 if (out_attr[Tag_ABI_PID].i == 0) 1589 { 1590 _bfd_error_handler (_("warning: generating a shared library " 1591 "containing non-PID code")); 1592 } 1593 } 1594 /* Invoke the regular ELF backend linker to do all the work. */ 1595 if (!bfd_elf_final_link (abfd, info)) 1596 return FALSE; 1597 1598 return TRUE; 1599 } 1600 1601 /* Called to pass PARAMS to the backend. We store them in the hash table 1602 associated with INFO. */ 1603 1604 void 1605 elf32_tic6x_setup (struct bfd_link_info *info, 1606 struct elf32_tic6x_params *params) 1607 { 1608 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info); 1609 htab->params = *params; 1610 } 1611 1612 /* Determine if we're dealing with a DSBT object. */ 1613 1614 static bfd_boolean 1615 elf32_tic6x_using_dsbt (bfd *abfd) 1616 { 1617 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC, 1618 Tag_ABI_DSBT); 1619 } 1620 1621 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt 1622 sections in DYNOBJ, and set up shortcuts to them in our hash 1623 table. */ 1624 1625 static bfd_boolean 1626 elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) 1627 { 1628 struct elf32_tic6x_link_hash_table *htab; 1629 flagword flags; 1630 1631 htab = elf32_tic6x_hash_table (info); 1632 if (htab == NULL) 1633 return FALSE; 1634 1635 if (!_bfd_elf_create_dynamic_sections (dynobj, info)) 1636 return FALSE; 1637 1638 /* Create .dsbt */ 1639 flags = (SEC_ALLOC | SEC_LOAD 1640 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); 1641 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt", 1642 flags); 1643 if (htab->dsbt == NULL 1644 || !bfd_set_section_alignment (htab->dsbt, 2) 1645 || !bfd_set_section_alignment (htab->elf.splt, 5)) 1646 return FALSE; 1647 1648 return TRUE; 1649 } 1650 1651 static bfd_boolean 1652 elf32_tic6x_mkobject (bfd *abfd) 1653 { 1654 bfd_boolean ret; 1655 1656 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata), 1657 TIC6X_ELF_DATA); 1658 if (ret) 1659 elf32_tic6x_set_use_rela_p (abfd, TRUE); 1660 return ret; 1661 } 1662 1663 /* Install relocation RELA into section SRELA, incrementing its 1664 reloc_count. */ 1665 1666 static void 1667 elf32_tic6x_install_rela (bfd *output_bfd, asection *srela, 1668 Elf_Internal_Rela *rela) 1669 { 1670 bfd_byte *loc; 1671 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela); 1672 loc = srela->contents + off; 1673 BFD_ASSERT (off < srela->size); 1674 bfd_elf32_swap_reloca_out (output_bfd, rela, loc); 1675 } 1676 1677 /* Create a dynamic reloc against the GOT at offset OFFSET. The contents 1678 of the GOT at this offset have been initialized with the relocation. */ 1679 1680 static void 1681 elf32_tic6x_make_got_dynreloc (bfd *output_bfd, 1682 struct elf32_tic6x_link_hash_table *htab, 1683 asection *sym_sec, bfd_vma offset) 1684 { 1685 asection *sgot = htab->elf.sgot; 1686 Elf_Internal_Rela outrel; 1687 int dynindx; 1688 1689 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset; 1690 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset); 1691 if (sym_sec && sym_sec->output_section 1692 && ! bfd_is_abs_section (sym_sec->output_section) 1693 && ! bfd_is_und_section (sym_sec->output_section)) 1694 { 1695 dynindx = elf_section_data (sym_sec->output_section)->dynindx; 1696 outrel.r_addend -= sym_sec->output_section->vma; 1697 } 1698 else 1699 { 1700 dynindx = 0; 1701 } 1702 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32); 1703 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel); 1704 } 1705 1706 /* Finish up dynamic symbol handling. We set the contents of various 1707 dynamic sections here. */ 1708 1709 static bfd_boolean 1710 elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd, 1711 struct bfd_link_info *info, 1712 struct elf_link_hash_entry *h, 1713 Elf_Internal_Sym * sym) 1714 { 1715 struct elf32_tic6x_link_hash_table *htab; 1716 1717 htab = elf32_tic6x_hash_table (info); 1718 1719 if (h->plt.offset != (bfd_vma) -1) 1720 { 1721 bfd_vma plt_index; 1722 bfd_vma got_section_offset, got_dp_offset, rela_offset; 1723 Elf_Internal_Rela rela; 1724 bfd_byte *loc; 1725 asection *plt, *gotplt, *relplt; 1726 const struct elf_backend_data *bed; 1727 1728 bed = get_elf_backend_data (output_bfd); 1729 1730 BFD_ASSERT (htab->elf.splt != NULL); 1731 plt = htab->elf.splt; 1732 gotplt = htab->elf.sgotplt; 1733 relplt = htab->elf.srelplt; 1734 1735 /* This symbol has an entry in the procedure linkage table. Set 1736 it up. */ 1737 1738 if ((h->dynindx == -1 1739 && !((h->forced_local || bfd_link_executable (info)) 1740 && h->def_regular 1741 && h->type == STT_GNU_IFUNC)) 1742 || plt == NULL 1743 || gotplt == NULL 1744 || relplt == NULL) 1745 abort (); 1746 1747 /* Get the index in the procedure linkage table which 1748 corresponds to this symbol. This is the index of this symbol 1749 in all the symbols for which we are making plt entries. The 1750 first entry in the procedure linkage table is reserved. 1751 1752 Get the offset into the .got table of the entry that 1753 corresponds to this function. Each .got entry is 4 bytes. 1754 The first three are reserved. 1755 1756 For static executables, we don't reserve anything. */ 1757 1758 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; 1759 got_section_offset = plt_index + bed->got_header_size / 4; 1760 got_dp_offset = got_section_offset + htab->params.dsbt_size; 1761 rela_offset = plt_index * sizeof (Elf32_External_Rela); 1762 1763 got_section_offset *= 4; 1764 1765 /* Fill in the entry in the procedure linkage table. */ 1766 1767 /* ldw .d2t2 *+B14($GOT(f)), b2 */ 1768 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e, 1769 plt->contents + h->plt.offset); 1770 /* mvk .s2 low(rela_offset), b0 */ 1771 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a, 1772 plt->contents + h->plt.offset + 4); 1773 /* mvkh .s2 high(rela_offset), b0 */ 1774 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a, 1775 plt->contents + h->plt.offset + 8); 1776 /* nop 2 */ 1777 bfd_put_32 (output_bfd, 0x00002000, 1778 plt->contents + h->plt.offset + 12); 1779 /* b .s2 b2 */ 1780 bfd_put_32 (output_bfd, 0x00080362, 1781 plt->contents + h->plt.offset + 16); 1782 /* nop 5 */ 1783 bfd_put_32 (output_bfd, 0x00008000, 1784 plt->contents + h->plt.offset + 20); 1785 1786 /* Fill in the entry in the global offset table. */ 1787 bfd_put_32 (output_bfd, 1788 (plt->output_section->vma + plt->output_offset), 1789 gotplt->contents + got_section_offset); 1790 1791 /* Fill in the entry in the .rel.plt section. */ 1792 rela.r_offset = (gotplt->output_section->vma 1793 + gotplt->output_offset 1794 + got_section_offset); 1795 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT); 1796 rela.r_addend = 0; 1797 loc = relplt->contents + rela_offset; 1798 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); 1799 1800 if (!h->def_regular) 1801 { 1802 /* Mark the symbol as undefined, rather than as defined in 1803 the .plt section. */ 1804 sym->st_shndx = SHN_UNDEF; 1805 sym->st_value = 0; 1806 } 1807 } 1808 1809 if (h->got.offset != (bfd_vma) -1) 1810 { 1811 asection *sgot; 1812 asection *srela; 1813 1814 /* This symbol has an entry in the global offset table. 1815 Set it up. */ 1816 1817 sgot = htab->elf.sgot; 1818 srela = htab->elf.srelgot; 1819 BFD_ASSERT (sgot != NULL && srela != NULL); 1820 1821 /* If this is a -Bsymbolic link, and the symbol is defined 1822 locally, we just want to emit a RELATIVE reloc. Likewise if 1823 the symbol was forced to be local because of a version file. 1824 The entry in the global offset table will already have been 1825 initialized in the relocate_section function. */ 1826 if (bfd_link_pic (info) 1827 && (SYMBOLIC_BIND (info, h) 1828 || h->dynindx == -1 || h->forced_local) && h->def_regular) 1829 { 1830 asection *s = h->root.u.def.section; 1831 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s, 1832 h->got.offset & ~(bfd_vma) 1); 1833 } 1834 else 1835 { 1836 Elf_Internal_Rela outrel; 1837 bfd_put_32 (output_bfd, (bfd_vma) 0, 1838 sgot->contents + (h->got.offset & ~(bfd_vma) 1)); 1839 outrel.r_offset = (sgot->output_section->vma 1840 + sgot->output_offset 1841 + (h->got.offset & ~(bfd_vma) 1)); 1842 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32); 1843 outrel.r_addend = 0; 1844 1845 elf32_tic6x_install_rela (output_bfd, srela, &outrel); 1846 } 1847 } 1848 1849 if (h->needs_copy) 1850 { 1851 Elf_Internal_Rela rel; 1852 asection *s; 1853 1854 /* This symbol needs a copy reloc. Set it up. */ 1855 1856 if (h->dynindx == -1 1857 || (h->root.type != bfd_link_hash_defined 1858 && h->root.type != bfd_link_hash_defweak) 1859 || htab->elf.srelbss == NULL 1860 || htab->elf.sreldynrelro == NULL) 1861 abort (); 1862 1863 rel.r_offset = (h->root.u.def.value 1864 + h->root.u.def.section->output_section->vma 1865 + h->root.u.def.section->output_offset); 1866 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY); 1867 rel.r_addend = 0; 1868 if (h->root.u.def.section == htab->elf.sdynrelro) 1869 s = htab->elf.sreldynrelro; 1870 else 1871 s = htab->elf.srelbss; 1872 1873 elf32_tic6x_install_rela (output_bfd, s, &rel); 1874 } 1875 1876 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ 1877 if (h == elf_hash_table (info)->hdynamic 1878 || h == elf_hash_table (info)->hgot) 1879 sym->st_shndx = SHN_ABS; 1880 1881 return TRUE; 1882 } 1883 1884 /* Unwinding tables are not referenced directly. This pass marks them as 1885 required if the corresponding code section is marked. */ 1886 1887 static bfd_boolean 1888 elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info, 1889 elf_gc_mark_hook_fn gc_mark_hook) 1890 { 1891 bfd *sub; 1892 Elf_Internal_Shdr **elf_shdrp; 1893 bfd_boolean again; 1894 1895 _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook); 1896 1897 /* Marking EH data may cause additional code sections to be marked, 1898 requiring multiple passes. */ 1899 again = TRUE; 1900 while (again) 1901 { 1902 again = FALSE; 1903 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) 1904 { 1905 asection *o; 1906 1907 if (! is_tic6x_elf (sub)) 1908 continue; 1909 1910 elf_shdrp = elf_elfsections (sub); 1911 for (o = sub->sections; o != NULL; o = o->next) 1912 { 1913 Elf_Internal_Shdr *hdr; 1914 1915 hdr = &elf_section_data (o)->this_hdr; 1916 if (hdr->sh_type == SHT_C6000_UNWIND 1917 && hdr->sh_link 1918 && hdr->sh_link < elf_numsections (sub) 1919 && !o->gc_mark 1920 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark) 1921 { 1922 again = TRUE; 1923 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook)) 1924 return FALSE; 1925 } 1926 } 1927 } 1928 } 1929 1930 return TRUE; 1931 } 1932 1933 /* Return TRUE if this is an unwinding table index. */ 1934 1935 static bfd_boolean 1936 is_tic6x_elf_unwind_section_name (const char *name) 1937 { 1938 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind) 1939 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once)); 1940 } 1941 1942 1943 /* Set the type and flags for an unwinding index table. We do this by 1944 the section name, which is a hack, but ought to work. */ 1945 1946 static bfd_boolean 1947 elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, 1948 Elf_Internal_Shdr *hdr, asection *sec) 1949 { 1950 const char * name; 1951 1952 name = bfd_section_name (sec); 1953 1954 if (is_tic6x_elf_unwind_section_name (name)) 1955 { 1956 hdr->sh_type = SHT_C6000_UNWIND; 1957 hdr->sh_flags |= SHF_LINK_ORDER; 1958 } 1959 1960 return TRUE; 1961 } 1962 1963 /* Adjust a symbol defined by a dynamic object and referenced by a 1964 regular object. The current definition is in some section of the 1965 dynamic object, but we're not including those sections. We have to 1966 change the definition to something the rest of the link can 1967 understand. */ 1968 1969 static bfd_boolean 1970 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info, 1971 struct elf_link_hash_entry *h) 1972 { 1973 struct elf32_tic6x_link_hash_table *htab; 1974 bfd *dynobj; 1975 asection *s, *srel; 1976 1977 dynobj = elf_hash_table (info)->dynobj; 1978 1979 /* Make sure we know what is going on here. */ 1980 BFD_ASSERT (dynobj != NULL 1981 && (h->needs_plt 1982 || h->is_weakalias 1983 || (h->def_dynamic && h->ref_regular && !h->def_regular))); 1984 1985 /* If this is a function, put it in the procedure linkage table. We 1986 will fill in the contents of the procedure linkage table later, 1987 when we know the address of the .got section. */ 1988 if (h->type == STT_FUNC 1989 || h->needs_plt) 1990 { 1991 if (h->plt.refcount <= 0 1992 || SYMBOL_CALLS_LOCAL (info, h) 1993 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT 1994 && h->root.type == bfd_link_hash_undefweak)) 1995 { 1996 /* This case can occur if we saw a PLT32 reloc in an input 1997 file, but the symbol was never referred to by a dynamic 1998 object, or if all references were garbage collected. In 1999 such a case, we don't actually need to build a procedure 2000 linkage table, and we can just do a PC32 reloc instead. */ 2001 h->plt.offset = (bfd_vma) -1; 2002 h->needs_plt = 0; 2003 } 2004 2005 return TRUE; 2006 } 2007 2008 /* If this is a weak symbol, and there is a real definition, the 2009 processor independent code will have arranged for us to see the 2010 real definition first, and we can just use the same value. */ 2011 if (h->is_weakalias) 2012 { 2013 struct elf_link_hash_entry *def = weakdef (h); 2014 BFD_ASSERT (def->root.type == bfd_link_hash_defined); 2015 h->root.u.def.section = def->root.u.def.section; 2016 h->root.u.def.value = def->root.u.def.value; 2017 h->non_got_ref = def->non_got_ref; 2018 return TRUE; 2019 } 2020 2021 /* This is a reference to a symbol defined by a dynamic object which 2022 is not a function. */ 2023 2024 /* If we are creating a shared library, we must presume that the 2025 only references to the symbol are via the global offset table. 2026 For such cases we need not do anything here; the relocations will 2027 be handled correctly by relocate_section. */ 2028 if (bfd_link_pic (info)) 2029 return TRUE; 2030 2031 /* If there are no references to this symbol that do not use the 2032 GOT, we don't need to generate a copy reloc. */ 2033 if (!h->non_got_ref) 2034 return TRUE; 2035 2036 /* If -z nocopyreloc was given, we won't generate them either. */ 2037 if (info->nocopyreloc) 2038 { 2039 h->non_got_ref = 0; 2040 return TRUE; 2041 } 2042 2043 htab = elf32_tic6x_hash_table (info); 2044 if (htab == NULL) 2045 return FALSE; 2046 2047 /* We must allocate the symbol in our .dynbss section, which will 2048 become part of the .bss section of the executable. There will be 2049 an entry for this symbol in the .dynsym section. The dynamic 2050 object will contain position independent code, so all references 2051 from the dynamic object to this symbol will go through the global 2052 offset table. The dynamic linker will use the .dynsym entry to 2053 determine the address it must put in the global offset table, so 2054 both the dynamic object and the regular object will refer to the 2055 same memory location for the variable. */ 2056 2057 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to 2058 copy the initial value out of the dynamic object and into the 2059 runtime process image. */ 2060 if ((h->root.u.def.section->flags & SEC_READONLY) != 0) 2061 { 2062 s = htab->elf.sdynrelro; 2063 srel = htab->elf.sreldynrelro; 2064 } 2065 else 2066 { 2067 s = htab->elf.sdynbss; 2068 srel = htab->elf.srelbss; 2069 } 2070 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) 2071 { 2072 srel->size += sizeof (Elf32_External_Rela); 2073 h->needs_copy = 1; 2074 } 2075 2076 return _bfd_elf_adjust_dynamic_copy (info, h, s); 2077 } 2078 2079 static bfd_boolean 2080 elf32_tic6x_new_section_hook (bfd *abfd, asection *sec) 2081 { 2082 bfd_boolean ret; 2083 2084 /* Allocate target specific section data. */ 2085 if (!sec->used_by_bfd) 2086 { 2087 _tic6x_elf_section_data *sdata; 2088 size_t amt = sizeof (*sdata); 2089 2090 sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt); 2091 if (sdata == NULL) 2092 return FALSE; 2093 sec->used_by_bfd = sdata; 2094 } 2095 2096 ret = _bfd_elf_new_section_hook (abfd, sec); 2097 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p; 2098 2099 return ret; 2100 } 2101 2102 /* Return true if relocation REL against section SEC is a REL rather 2103 than RELA relocation. RELOCS is the first relocation in the 2104 section and ABFD is the bfd that contains SEC. */ 2105 2106 static bfd_boolean 2107 elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec, 2108 const Elf_Internal_Rela *relocs, 2109 const Elf_Internal_Rela *rel) 2110 { 2111 Elf_Internal_Shdr *rel_hdr; 2112 const struct elf_backend_data *bed; 2113 2114 /* To determine which flavor of relocation this is, we depend on the 2115 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */ 2116 rel_hdr = elf_section_data (sec)->rel.hdr; 2117 if (rel_hdr == NULL) 2118 return FALSE; 2119 bed = get_elf_backend_data (abfd); 2120 return ((size_t) (rel - relocs) 2121 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel); 2122 } 2123 2124 /* We need dynamic symbols for every section, since segments can 2125 relocate independently. */ 2126 static bfd_boolean 2127 elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED, 2128 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2129 asection *p) 2130 { 2131 switch (elf_section_data (p)->this_hdr.sh_type) 2132 { 2133 case SHT_PROGBITS: 2134 case SHT_NOBITS: 2135 /* If sh_type is yet undecided, assume it could be 2136 SHT_PROGBITS/SHT_NOBITS. */ 2137 case SHT_NULL: 2138 return FALSE; 2139 2140 /* There shouldn't be section relative relocations 2141 against any other section. */ 2142 default: 2143 return TRUE; 2144 } 2145 } 2146 2147 static bfd_boolean 2148 elf32_tic6x_relocate_section (bfd *output_bfd, 2149 struct bfd_link_info *info, 2150 bfd *input_bfd, 2151 asection *input_section, 2152 bfd_byte *contents, 2153 Elf_Internal_Rela *relocs, 2154 Elf_Internal_Sym *local_syms, 2155 asection **local_sections) 2156 { 2157 struct elf32_tic6x_link_hash_table *htab; 2158 Elf_Internal_Shdr *symtab_hdr; 2159 struct elf_link_hash_entry **sym_hashes; 2160 bfd_vma *local_got_offsets; 2161 Elf_Internal_Rela *rel; 2162 Elf_Internal_Rela *relend; 2163 bfd_boolean ok = TRUE; 2164 2165 htab = elf32_tic6x_hash_table (info); 2166 symtab_hdr = & elf_symtab_hdr (input_bfd); 2167 sym_hashes = elf_sym_hashes (input_bfd); 2168 local_got_offsets = elf_local_got_offsets (input_bfd); 2169 2170 relend = relocs + input_section->reloc_count; 2171 2172 for (rel = relocs; rel < relend; rel ++) 2173 { 2174 int r_type; 2175 unsigned long r_symndx; 2176 arelent bfd_reloc; 2177 reloc_howto_type *howto; 2178 Elf_Internal_Sym *sym; 2179 asection *sec; 2180 struct elf_link_hash_entry *h; 2181 bfd_vma off, off2, relocation; 2182 bfd_boolean unresolved_reloc; 2183 bfd_reloc_status_type r; 2184 struct bfd_link_hash_entry *sbh; 2185 bfd_boolean is_rel; 2186 bfd_boolean res; 2187 2188 r_type = ELF32_R_TYPE (rel->r_info); 2189 r_symndx = ELF32_R_SYM (rel->r_info); 2190 2191 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section, 2192 relocs, rel); 2193 2194 if (is_rel) 2195 res = elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel); 2196 else 2197 res = elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel); 2198 2199 if (!res || (howto = bfd_reloc.howto) == NULL) 2200 { 2201 bfd_set_error (bfd_error_bad_value); 2202 return FALSE; 2203 } 2204 2205 h = NULL; 2206 sym = NULL; 2207 sec = NULL; 2208 unresolved_reloc = FALSE; 2209 2210 if (r_symndx < symtab_hdr->sh_info) 2211 { 2212 sym = local_syms + r_symndx; 2213 sec = local_sections[r_symndx]; 2214 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); 2215 } 2216 else 2217 { 2218 bfd_boolean warned, ignored; 2219 2220 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, 2221 r_symndx, symtab_hdr, sym_hashes, 2222 h, sec, relocation, 2223 unresolved_reloc, warned, ignored); 2224 } 2225 2226 if (sec != NULL && discarded_section (sec)) 2227 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, 2228 rel, 1, relend, howto, 0, contents); 2229 2230 if (bfd_link_relocatable (info)) 2231 { 2232 if (is_rel 2233 && sym != NULL 2234 && ELF_ST_TYPE (sym->st_info) == STT_SECTION) 2235 { 2236 rel->r_addend = 0; 2237 relocation = sec->output_offset + sym->st_value; 2238 r = _bfd_relocate_contents (howto, input_bfd, relocation, 2239 contents + rel->r_offset); 2240 goto done_reloc; 2241 } 2242 continue; 2243 } 2244 2245 switch (r_type) 2246 { 2247 case R_C6000_NONE: 2248 case R_C6000_ALIGN: 2249 case R_C6000_FPHEAD: 2250 case R_C6000_NOCMP: 2251 /* No action needed. */ 2252 continue; 2253 2254 case R_C6000_PCR_S21: 2255 /* A branch to an undefined weak symbol is turned into a 2256 "b .s2 B3" instruction if the existing insn is of the 2257 form "b .s2 symbol". */ 2258 if (h ? h->root.type == bfd_link_hash_undefweak 2259 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1) 2260 : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) 2261 { 2262 unsigned long oldval; 2263 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset); 2264 2265 if ((oldval & 0x7e) == 0x12) 2266 { 2267 oldval &= 0xF0000001; 2268 bfd_put_32 (input_bfd, oldval | 0x000c0362, 2269 contents + rel->r_offset); 2270 r = bfd_reloc_ok; 2271 goto done_reloc; 2272 } 2273 } 2274 /* Fall through. */ 2275 2276 case R_C6000_PCR_S12: 2277 case R_C6000_PCR_S10: 2278 case R_C6000_PCR_S7: 2279 if (h != NULL 2280 && h->plt.offset != (bfd_vma) -1 2281 && htab->elf.splt != NULL) 2282 { 2283 relocation = (htab->elf.splt->output_section->vma 2284 + htab->elf.splt->output_offset 2285 + h->plt.offset); 2286 } 2287 2288 /* Generic PC-relative handling produces a value relative to 2289 the exact location of the relocation. Adjust it to be 2290 relative to the start of the fetch packet instead. */ 2291 relocation += (input_section->output_section->vma 2292 + input_section->output_offset 2293 + rel->r_offset) & 0x1f; 2294 unresolved_reloc = FALSE; 2295 break; 2296 2297 case R_C6000_PCR_H16: 2298 case R_C6000_PCR_L16: 2299 off = (input_section->output_section->vma 2300 + input_section->output_offset 2301 + rel->r_offset); 2302 /* These must be calculated as R = S - FP(FP(PC) - A). 2303 PC, here, is the value we just computed in OFF. RELOCATION 2304 has the address of S + A. */ 2305 relocation -= rel->r_addend; 2306 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f; 2307 off2 = relocation - off2; 2308 relocation = off + off2; 2309 break; 2310 2311 case R_C6000_DSBT_INDEX: 2312 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index; 2313 if (!bfd_link_pic (info) || relocation != 0) 2314 break; 2315 2316 /* fall through */ 2317 case R_C6000_ABS32: 2318 case R_C6000_ABS16: 2319 case R_C6000_ABS8: 2320 case R_C6000_ABS_S16: 2321 case R_C6000_ABS_L16: 2322 case R_C6000_ABS_H16: 2323 /* When generating a shared object or relocatable executable, these 2324 relocations are copied into the output file to be resolved at 2325 run time. */ 2326 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd)) 2327 && (input_section->flags & SEC_ALLOC) 2328 && (h == NULL 2329 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT 2330 || h->root.type != bfd_link_hash_undefweak)) 2331 { 2332 Elf_Internal_Rela outrel; 2333 bfd_boolean skip, relocate; 2334 asection *sreloc; 2335 2336 unresolved_reloc = FALSE; 2337 2338 sreloc = elf_section_data (input_section)->sreloc; 2339 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL); 2340 2341 skip = FALSE; 2342 relocate = FALSE; 2343 2344 outrel.r_offset = 2345 _bfd_elf_section_offset (output_bfd, info, input_section, 2346 rel->r_offset); 2347 if (outrel.r_offset == (bfd_vma) -1) 2348 skip = TRUE; 2349 else if (outrel.r_offset == (bfd_vma) -2) 2350 skip = TRUE, relocate = TRUE; 2351 outrel.r_offset += (input_section->output_section->vma 2352 + input_section->output_offset); 2353 2354 if (skip) 2355 memset (&outrel, 0, sizeof outrel); 2356 else if (h != NULL 2357 && h->dynindx != -1 2358 && (!bfd_link_pic (info) 2359 || !SYMBOLIC_BIND (info, h) 2360 || !h->def_regular)) 2361 { 2362 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); 2363 outrel.r_addend = rel->r_addend; 2364 } 2365 else 2366 { 2367 long indx; 2368 2369 outrel.r_addend = relocation + rel->r_addend; 2370 2371 if (bfd_is_abs_section (sec)) 2372 indx = 0; 2373 else if (sec == NULL || sec->owner == NULL) 2374 { 2375 bfd_set_error (bfd_error_bad_value); 2376 return FALSE; 2377 } 2378 else 2379 { 2380 asection *osec; 2381 2382 osec = sec->output_section; 2383 indx = elf_section_data (osec)->dynindx; 2384 outrel.r_addend -= osec->vma; 2385 BFD_ASSERT (indx != 0); 2386 } 2387 2388 outrel.r_info = ELF32_R_INFO (indx, r_type); 2389 } 2390 2391 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel); 2392 2393 /* If this reloc is against an external symbol, we do not want to 2394 fiddle with the addend. Otherwise, we need to include the symbol 2395 value so that it becomes an addend for the dynamic reloc. */ 2396 if (! relocate) 2397 continue; 2398 } 2399 2400 /* Generic logic OK. */ 2401 break; 2402 2403 case R_C6000_SBR_U15_B: 2404 case R_C6000_SBR_U15_H: 2405 case R_C6000_SBR_U15_W: 2406 case R_C6000_SBR_S16: 2407 case R_C6000_SBR_L16_B: 2408 case R_C6000_SBR_L16_H: 2409 case R_C6000_SBR_L16_W: 2410 case R_C6000_SBR_H16_B: 2411 case R_C6000_SBR_H16_H: 2412 case R_C6000_SBR_H16_W: 2413 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE", 2414 FALSE, FALSE, TRUE); 2415 if (sbh != NULL 2416 && (sbh->type == bfd_link_hash_defined 2417 || sbh->type == bfd_link_hash_defweak)) 2418 { 2419 if (h ? (h->root.type == bfd_link_hash_undefweak 2420 && (htab->elf.splt == NULL 2421 || h->plt.offset == (bfd_vma) -1)) 2422 : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) 2423 relocation = 0; 2424 else 2425 relocation -= (sbh->u.def.value 2426 + sbh->u.def.section->output_section->vma 2427 + sbh->u.def.section->output_offset); 2428 } 2429 else 2430 { 2431 _bfd_error_handler (_("%pB: SB-relative relocation but " 2432 "__c6xabi_DSBT_BASE not defined"), 2433 input_bfd); 2434 ok = FALSE; 2435 continue; 2436 } 2437 break; 2438 2439 case R_C6000_SBR_GOT_U15_W: 2440 case R_C6000_SBR_GOT_L16_W: 2441 case R_C6000_SBR_GOT_H16_W: 2442 case R_C6000_EHTYPE: 2443 /* Relocation is to the entry for this symbol in the global 2444 offset table. */ 2445 if (htab->elf.sgot == NULL) 2446 abort (); 2447 2448 if (h != NULL) 2449 { 2450 bfd_boolean dyn; 2451 2452 off = h->got.offset; 2453 dyn = htab->elf.dynamic_sections_created; 2454 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 2455 bfd_link_pic (info), 2456 h) 2457 || (bfd_link_pic (info) 2458 && SYMBOL_REFERENCES_LOCAL (info, h)) 2459 || (ELF_ST_VISIBILITY (h->other) 2460 && h->root.type == bfd_link_hash_undefweak)) 2461 { 2462 /* This is actually a static link, or it is a 2463 -Bsymbolic link and the symbol is defined 2464 locally, or the symbol was forced to be local 2465 because of a version file. We must initialize 2466 this entry in the global offset table. Since the 2467 offset must always be a multiple of 4, we use the 2468 least significant bit to record whether we have 2469 initialized it already. 2470 2471 When doing a dynamic link, we create a .rel.got 2472 relocation entry to initialize the value. This 2473 is done in the finish_dynamic_symbol routine. */ 2474 if ((off & 1) != 0) 2475 off &= ~1; 2476 else 2477 { 2478 bfd_put_32 (output_bfd, relocation, 2479 htab->elf.sgot->contents + off); 2480 h->got.offset |= 1; 2481 2482 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 2483 bfd_link_pic (info), 2484 h) 2485 && !(ELF_ST_VISIBILITY (h->other) 2486 && h->root.type == bfd_link_hash_undefweak)) 2487 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, 2488 off); 2489 } 2490 } 2491 else 2492 unresolved_reloc = FALSE; 2493 } 2494 else 2495 { 2496 if (local_got_offsets == NULL) 2497 abort (); 2498 2499 off = local_got_offsets[r_symndx]; 2500 2501 /* The offset must always be a multiple of 4. We use 2502 the least significant bit to record whether we have 2503 already generated the necessary reloc. */ 2504 if ((off & 1) != 0) 2505 off &= ~1; 2506 else 2507 { 2508 bfd_put_32 (output_bfd, relocation, 2509 htab->elf.sgot->contents + off); 2510 2511 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd)) 2512 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off); 2513 2514 local_got_offsets[r_symndx] |= 1; 2515 } 2516 } 2517 2518 if (off >= (bfd_vma) -2) 2519 abort (); 2520 2521 if (htab->dsbt) 2522 relocation = (htab->elf.sgot->output_section->vma 2523 + htab->elf.sgot->output_offset + off 2524 - htab->dsbt->output_section->vma 2525 - htab->dsbt->output_offset); 2526 else 2527 relocation = (htab->elf.sgot->output_section->vma 2528 + htab->elf.sgot->output_offset + off 2529 - htab->elf.sgotplt->output_section->vma 2530 - htab->elf.sgotplt->output_offset); 2531 2532 if (rel->r_addend != 0) 2533 { 2534 /* We can't do anything for a relocation which is against 2535 a symbol *plus offset*. GOT holds relocations for 2536 symbols. Make this an error; the compiler isn't 2537 allowed to pass us these kinds of things. */ 2538 if (h == NULL) 2539 _bfd_error_handler 2540 /* xgettext:c-format */ 2541 (_("%pB, section %pA: relocation %s with non-zero addend %" 2542 PRId64 " against local symbol"), 2543 input_bfd, 2544 input_section, 2545 elf32_tic6x_howto_table[r_type].name, 2546 (int64_t) rel->r_addend); 2547 else 2548 _bfd_error_handler 2549 /* xgettext:c-format */ 2550 (_("%pB, section %pA: relocation %s with non-zero addend %" 2551 PRId64 " against symbol `%s'"), 2552 input_bfd, 2553 input_section, 2554 elf32_tic6x_howto_table[r_type].name, 2555 (int64_t) rel->r_addend, 2556 h->root.root.string[0] != '\0' ? h->root.root.string 2557 : _("[whose name is lost]")); 2558 2559 bfd_set_error (bfd_error_bad_value); 2560 return FALSE; 2561 } 2562 break; 2563 2564 case R_C6000_PREL31: 2565 if (h != NULL 2566 && h->plt.offset != (bfd_vma) -1 2567 && htab->elf.splt != NULL) 2568 { 2569 relocation = (htab->elf.splt->output_section->vma 2570 + htab->elf.splt->output_offset 2571 + h->plt.offset); 2572 } 2573 break; 2574 2575 case R_C6000_COPY: 2576 /* Invalid in relocatable object. */ 2577 default: 2578 /* Unknown relocation. */ 2579 /* xgettext:c-format */ 2580 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), 2581 input_bfd, r_type); 2582 bfd_set_error (bfd_error_bad_value); 2583 ok = FALSE; 2584 continue; 2585 } 2586 2587 r = _bfd_final_link_relocate (howto, input_bfd, input_section, 2588 contents, rel->r_offset, 2589 relocation, rel->r_addend); 2590 2591 done_reloc: 2592 if (r == bfd_reloc_ok 2593 && howto->complain_on_overflow == complain_overflow_bitfield) 2594 { 2595 /* Generic overflow handling accepts cases the ABI says 2596 should be rejected for R_C6000_ABS16 and 2597 R_C6000_ABS8. */ 2598 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff; 2599 bfd_vma sbit = 1 << (howto->bitsize - 1); 2600 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff; 2601 bfd_vma value_sbits = value & sbits; 2602 2603 if (value_sbits != 0 2604 && value_sbits != sbit 2605 && value_sbits != sbits) 2606 r = bfd_reloc_overflow; 2607 } 2608 2609 if (r != bfd_reloc_ok) 2610 { 2611 const char *name; 2612 const char *error_message; 2613 2614 if (h != NULL) 2615 name = h->root.root.string; 2616 else 2617 { 2618 name = bfd_elf_string_from_elf_section (input_bfd, 2619 symtab_hdr->sh_link, 2620 sym->st_name); 2621 if (name == NULL) 2622 return FALSE; 2623 if (*name == '\0') 2624 name = bfd_section_name (sec); 2625 } 2626 2627 switch (r) 2628 { 2629 case bfd_reloc_overflow: 2630 /* If the overflowing reloc was to an undefined symbol, 2631 we have already printed one error message and there 2632 is no point complaining again. */ 2633 if (!h || h->root.type != bfd_link_hash_undefined) 2634 (*info->callbacks->reloc_overflow) 2635 (info, (h ? &h->root : NULL), name, howto->name, 2636 (bfd_vma) 0, input_bfd, input_section, rel->r_offset); 2637 break; 2638 2639 case bfd_reloc_undefined: 2640 (*info->callbacks->undefined_symbol) (info, name, input_bfd, 2641 input_section, 2642 rel->r_offset, TRUE); 2643 break; 2644 2645 case bfd_reloc_outofrange: 2646 error_message = _("out of range"); 2647 goto common_error; 2648 2649 case bfd_reloc_notsupported: 2650 error_message = _("unsupported relocation"); 2651 goto common_error; 2652 2653 case bfd_reloc_dangerous: 2654 error_message = _("dangerous relocation"); 2655 goto common_error; 2656 2657 default: 2658 error_message = _("unknown error"); 2659 /* Fall through. */ 2660 2661 common_error: 2662 BFD_ASSERT (error_message != NULL); 2663 (*info->callbacks->reloc_dangerous) 2664 (info, error_message, input_bfd, input_section, rel->r_offset); 2665 break; 2666 } 2667 } 2668 } 2669 2670 return ok; 2671 } 2672 2673 2674 /* Look through the relocs for a section during the first phase, and 2675 calculate needed space in the global offset table, procedure linkage 2676 table, and dynamic reloc sections. */ 2677 2678 static bfd_boolean 2679 elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info, 2680 asection *sec, const Elf_Internal_Rela *relocs) 2681 { 2682 struct elf32_tic6x_link_hash_table *htab; 2683 Elf_Internal_Shdr *symtab_hdr; 2684 struct elf_link_hash_entry **sym_hashes; 2685 const Elf_Internal_Rela *rel; 2686 const Elf_Internal_Rela *rel_end; 2687 asection *sreloc; 2688 2689 if (bfd_link_relocatable (info)) 2690 return TRUE; 2691 2692 htab = elf32_tic6x_hash_table (info); 2693 symtab_hdr = &elf_symtab_hdr (abfd); 2694 sym_hashes = elf_sym_hashes (abfd); 2695 2696 /* Create dynamic sections for relocatable executables so that we can 2697 copy relocations. */ 2698 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd)) 2699 && ! htab->elf.dynamic_sections_created) 2700 { 2701 if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) 2702 return FALSE; 2703 } 2704 2705 sreloc = NULL; 2706 2707 rel_end = relocs + sec->reloc_count; 2708 for (rel = relocs; rel < rel_end; rel++) 2709 { 2710 unsigned int r_type; 2711 unsigned int r_symndx; 2712 struct elf_link_hash_entry *h; 2713 Elf_Internal_Sym *isym; 2714 2715 r_symndx = ELF32_R_SYM (rel->r_info); 2716 r_type = ELF32_R_TYPE (rel->r_info); 2717 2718 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) 2719 { 2720 /* xgettext:c-format */ 2721 _bfd_error_handler (_("%pB: bad symbol index: %d"), 2722 abfd, r_symndx); 2723 return FALSE; 2724 } 2725 2726 if (r_symndx < symtab_hdr->sh_info) 2727 { 2728 /* A local symbol. */ 2729 isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, 2730 abfd, r_symndx); 2731 if (isym == NULL) 2732 return FALSE; 2733 h = NULL; 2734 } 2735 else 2736 { 2737 isym = NULL; 2738 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 2739 while (h->root.type == bfd_link_hash_indirect 2740 || h->root.type == bfd_link_hash_warning) 2741 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2742 } 2743 2744 switch (r_type) 2745 { 2746 case R_C6000_PCR_S21: 2747 case R_C6000_PREL31: 2748 /* This symbol requires a procedure linkage table entry. We 2749 actually build the entry in adjust_dynamic_symbol, 2750 because this might be a case of linking PIC code which is 2751 never referenced by a dynamic object, in which case we 2752 don't need to generate a procedure linkage table entry 2753 after all. */ 2754 2755 /* If this is a local symbol, we resolve it directly without 2756 creating a procedure linkage table entry. */ 2757 if (h == NULL) 2758 continue; 2759 2760 h->needs_plt = 1; 2761 h->plt.refcount += 1; 2762 break; 2763 2764 case R_C6000_SBR_GOT_U15_W: 2765 case R_C6000_SBR_GOT_L16_W: 2766 case R_C6000_SBR_GOT_H16_W: 2767 case R_C6000_EHTYPE: 2768 /* This symbol requires a global offset table entry. */ 2769 if (h != NULL) 2770 { 2771 h->got.refcount += 1; 2772 } 2773 else 2774 { 2775 bfd_signed_vma *local_got_refcounts; 2776 2777 /* This is a global offset table entry for a local symbol. */ 2778 local_got_refcounts = elf_local_got_refcounts (abfd); 2779 if (local_got_refcounts == NULL) 2780 { 2781 bfd_size_type size; 2782 2783 size = symtab_hdr->sh_info; 2784 size *= (sizeof (bfd_signed_vma) 2785 + sizeof (bfd_vma) + sizeof(char)); 2786 local_got_refcounts = bfd_zalloc (abfd, size); 2787 if (local_got_refcounts == NULL) 2788 return FALSE; 2789 elf_local_got_refcounts (abfd) = local_got_refcounts; 2790 } 2791 local_got_refcounts[r_symndx] += 1; 2792 } 2793 2794 if (htab->elf.sgot == NULL) 2795 { 2796 if (htab->elf.dynobj == NULL) 2797 htab->elf.dynobj = abfd; 2798 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) 2799 return FALSE; 2800 } 2801 break; 2802 2803 case R_C6000_DSBT_INDEX: 2804 /* We'd like to check for nonzero dsbt_index here, but it's 2805 set up only after check_relocs is called. Instead, we 2806 store the number of R_C6000_DSBT_INDEX relocs in the 2807 pc_count field, and potentially discard the extra space 2808 in elf32_tic6x_allocate_dynrelocs. */ 2809 if (!bfd_link_pic (info)) 2810 break; 2811 2812 /* fall through */ 2813 case R_C6000_ABS32: 2814 case R_C6000_ABS16: 2815 case R_C6000_ABS8: 2816 case R_C6000_ABS_S16: 2817 case R_C6000_ABS_L16: 2818 case R_C6000_ABS_H16: 2819 /* If we are creating a shared library, and this is a reloc 2820 against a global symbol, or a non PC relative reloc 2821 against a local symbol, then we need to copy the reloc 2822 into the shared library. However, if we are linking with 2823 -Bsymbolic, we do not need to copy a reloc against a 2824 global symbol which is defined in an object we are 2825 including in the link (i.e., DEF_REGULAR is set). At 2826 this point we have not seen all the input files, so it is 2827 possible that DEF_REGULAR is not set now but will be set 2828 later (it is never cleared). In case of a weak definition, 2829 DEF_REGULAR may be cleared later by a strong definition in 2830 a shared library. We account for that possibility below by 2831 storing information in the relocs_copied field of the hash 2832 table entry. A similar situation occurs when creating 2833 shared libraries and symbol visibility changes render the 2834 symbol local. 2835 2836 If on the other hand, we are creating an executable, we 2837 may need to keep relocations for symbols satisfied by a 2838 dynamic library if we manage to avoid copy relocs for the 2839 symbol. */ 2840 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd)) 2841 && (sec->flags & SEC_ALLOC) != 0) 2842 { 2843 struct elf_dyn_relocs *p; 2844 struct elf_dyn_relocs **head; 2845 2846 /* We must copy these reloc types into the output file. 2847 Create a reloc section in dynobj and make room for 2848 this reloc. */ 2849 if (sreloc == NULL) 2850 { 2851 if (htab->elf.dynobj == NULL) 2852 htab->elf.dynobj = abfd; 2853 2854 sreloc = _bfd_elf_make_dynamic_reloc_section 2855 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE); 2856 2857 if (sreloc == NULL) 2858 return FALSE; 2859 } 2860 2861 /* If this is a global symbol, we count the number of 2862 relocations we need for this symbol. */ 2863 if (h != NULL) 2864 { 2865 head = &h->dyn_relocs; 2866 } 2867 else 2868 { 2869 /* Track dynamic relocs needed for local syms too. 2870 We really need local syms available to do this 2871 easily. Oh well. */ 2872 void **vpp; 2873 asection *s; 2874 2875 s = bfd_section_from_elf_index (abfd, isym->st_shndx); 2876 if (s == NULL) 2877 s = sec; 2878 2879 vpp = &elf_section_data (s)->local_dynrel; 2880 head = (struct elf_dyn_relocs **)vpp; 2881 } 2882 2883 p = *head; 2884 if (p == NULL || p->sec != sec) 2885 { 2886 size_t amt = sizeof *p; 2887 p = bfd_alloc (htab->elf.dynobj, amt); 2888 if (p == NULL) 2889 return FALSE; 2890 p->next = *head; 2891 *head = p; 2892 p->sec = sec; 2893 p->count = 0; 2894 p->pc_count = 0; 2895 } 2896 2897 p->count += 1; 2898 if (r_type == R_C6000_DSBT_INDEX) 2899 p->pc_count += 1; 2900 } 2901 break; 2902 2903 case R_C6000_SBR_U15_B: 2904 case R_C6000_SBR_U15_H: 2905 case R_C6000_SBR_U15_W: 2906 case R_C6000_SBR_S16: 2907 case R_C6000_SBR_L16_B: 2908 case R_C6000_SBR_L16_H: 2909 case R_C6000_SBR_L16_W: 2910 case R_C6000_SBR_H16_B: 2911 case R_C6000_SBR_H16_H: 2912 case R_C6000_SBR_H16_W: 2913 { 2914 /* These relocations implicitly reference __c6xabi_DSBT_BASE. 2915 Add an explicit reference so that the symbol will be 2916 provided by a linker script. */ 2917 struct bfd_link_hash_entry *bh = NULL; 2918 if (!_bfd_generic_link_add_one_symbol (info, abfd, 2919 "__c6xabi_DSBT_BASE", 2920 BSF_GLOBAL, 2921 bfd_und_section_ptr, 0, 2922 NULL, FALSE, FALSE, &bh)) 2923 return FALSE; 2924 ((struct elf_link_hash_entry *) bh)->non_elf = 0; 2925 } 2926 if (h != NULL && bfd_link_executable (info)) 2927 { 2928 /* For B14-relative addresses, we might need a copy 2929 reloc. */ 2930 h->non_got_ref = 1; 2931 } 2932 break; 2933 2934 default: 2935 break; 2936 } 2937 } 2938 2939 return TRUE; 2940 } 2941 2942 static bfd_boolean 2943 elf32_tic6x_add_symbol_hook (bfd *abfd, 2944 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2945 Elf_Internal_Sym *sym, 2946 const char **namep ATTRIBUTE_UNUSED, 2947 flagword *flagsp ATTRIBUTE_UNUSED, 2948 asection **secp, 2949 bfd_vma *valp) 2950 { 2951 switch (sym->st_shndx) 2952 { 2953 case SHN_TIC6X_SCOMMON: 2954 *secp = bfd_make_section_old_way (abfd, ".scommon"); 2955 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; 2956 *valp = sym->st_size; 2957 bfd_set_section_alignment (*secp, bfd_log2 (sym->st_value)); 2958 break; 2959 } 2960 2961 return TRUE; 2962 } 2963 2964 static void 2965 elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym) 2966 { 2967 elf_symbol_type *elfsym; 2968 2969 elfsym = (elf_symbol_type *) asym; 2970 switch (elfsym->internal_elf_sym.st_shndx) 2971 { 2972 case SHN_TIC6X_SCOMMON: 2973 if (tic6x_elf_scom_section.name == NULL) 2974 { 2975 /* Initialize the small common section. */ 2976 tic6x_elf_scom_section.name = ".scommon"; 2977 tic6x_elf_scom_section.flags = SEC_IS_COMMON | SEC_SMALL_DATA; 2978 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section; 2979 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol; 2980 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr; 2981 tic6x_elf_scom_symbol.name = ".scommon"; 2982 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM; 2983 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section; 2984 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol; 2985 } 2986 asym->section = &tic6x_elf_scom_section; 2987 asym->value = elfsym->internal_elf_sym.st_size; 2988 break; 2989 } 2990 } 2991 2992 static int 2993 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, 2994 const char *name ATTRIBUTE_UNUSED, 2995 Elf_Internal_Sym *sym, 2996 asection *input_sec, 2997 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 2998 { 2999 /* If we see a common symbol, which implies a relocatable link, then 3000 if a symbol was small common in an input file, mark it as small 3001 common in the output file. */ 3002 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) 3003 sym->st_shndx = SHN_TIC6X_SCOMMON; 3004 3005 return 1; 3006 } 3007 3008 static bfd_boolean 3009 elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, 3010 asection *sec, 3011 int *retval) 3012 { 3013 if (strcmp (bfd_section_name (sec), ".scommon") == 0) 3014 { 3015 *retval = SHN_TIC6X_SCOMMON; 3016 return TRUE; 3017 } 3018 3019 return FALSE; 3020 } 3021 3022 /* Allocate space in .plt, .got and associated reloc sections for 3023 dynamic relocs. */ 3024 3025 static bfd_boolean 3026 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) 3027 { 3028 struct bfd_link_info *info; 3029 struct elf32_tic6x_link_hash_table *htab; 3030 struct elf_dyn_relocs *p; 3031 3032 if (h->root.type == bfd_link_hash_indirect) 3033 return TRUE; 3034 3035 info = (struct bfd_link_info *) inf; 3036 htab = elf32_tic6x_hash_table (info); 3037 3038 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0) 3039 { 3040 /* Make sure this symbol is output as a dynamic symbol. 3041 Undefined weak syms won't yet be marked as dynamic. */ 3042 if (h->dynindx == -1 && !h->forced_local) 3043 { 3044 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3045 return FALSE; 3046 } 3047 3048 if (bfd_link_pic (info) 3049 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) 3050 { 3051 asection *s = htab->elf.splt; 3052 3053 /* If this is the first .plt entry, make room for the special 3054 first entry. */ 3055 if (s->size == 0) 3056 s->size += PLT_ENTRY_SIZE; 3057 3058 h->plt.offset = s->size; 3059 3060 /* If this symbol is not defined in a regular file, and we are 3061 not generating a shared library, then set the symbol to this 3062 location in the .plt. This is required to make function 3063 pointers compare as equal between the normal executable and 3064 the shared library. */ 3065 if (! bfd_link_pic (info) && !h->def_regular) 3066 { 3067 h->root.u.def.section = s; 3068 h->root.u.def.value = h->plt.offset; 3069 } 3070 3071 /* Make room for this entry. */ 3072 s->size += PLT_ENTRY_SIZE; 3073 /* We also need to make an entry in the .got.plt section, which 3074 will be placed in the .got section by the linker script. */ 3075 htab->elf.sgotplt->size += 4; 3076 /* We also need to make an entry in the .rel.plt section. */ 3077 htab->elf.srelplt->size += sizeof (Elf32_External_Rela); 3078 } 3079 else 3080 { 3081 h->plt.offset = (bfd_vma) -1; 3082 h->needs_plt = 0; 3083 } 3084 } 3085 else 3086 { 3087 h->plt.offset = (bfd_vma) -1; 3088 h->needs_plt = 0; 3089 } 3090 3091 if (h->got.refcount > 0) 3092 { 3093 asection *s; 3094 3095 /* Make sure this symbol is output as a dynamic symbol. 3096 Undefined weak syms won't yet be marked as dynamic. */ 3097 if (h->dynindx == -1 3098 && !h->forced_local) 3099 { 3100 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3101 return FALSE; 3102 } 3103 3104 s = htab->elf.sgot; 3105 h->got.offset = s->size; 3106 s->size += 4; 3107 3108 if (!(ELF_ST_VISIBILITY (h->other) 3109 && h->root.type == bfd_link_hash_undefweak)) 3110 htab->elf.srelgot->size += sizeof (Elf32_External_Rela); 3111 } 3112 else 3113 h->got.offset = (bfd_vma) -1; 3114 3115 if (h->dyn_relocs == NULL) 3116 return TRUE; 3117 3118 /* Discard relocs on undefined weak syms with non-default 3119 visibility. */ 3120 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (htab->obfd)) 3121 { 3122 /* We use the pc_count field to hold the number of 3123 R_C6000_DSBT_INDEX relocs. */ 3124 if (htab->params.dsbt_index != 0) 3125 { 3126 struct elf_dyn_relocs **pp; 3127 3128 for (pp = &h->dyn_relocs; (p = *pp) != NULL; ) 3129 { 3130 p->count -= p->pc_count; 3131 p->pc_count = 0; 3132 if (p->count == 0) 3133 *pp = p->next; 3134 else 3135 pp = &p->next; 3136 } 3137 } 3138 3139 if (h->dyn_relocs != NULL 3140 && h->root.type == bfd_link_hash_undefweak) 3141 { 3142 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) 3143 h->dyn_relocs = NULL; 3144 3145 /* Make sure undefined weak symbols are output as a dynamic 3146 symbol in PIEs. */ 3147 else if (h->dynindx == -1 3148 && !h->forced_local) 3149 { 3150 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3151 return FALSE; 3152 } 3153 } 3154 } 3155 3156 /* Finally, allocate space. */ 3157 for (p = h->dyn_relocs; p != NULL; p = p->next) 3158 { 3159 asection *sreloc; 3160 3161 sreloc = elf_section_data (p->sec)->sreloc; 3162 3163 BFD_ASSERT (sreloc != NULL); 3164 sreloc->size += p->count * sizeof (Elf32_External_Rela); 3165 } 3166 3167 return TRUE; 3168 } 3169 3170 /* Set the sizes of the dynamic sections. */ 3171 3172 static bfd_boolean 3173 elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) 3174 { 3175 struct elf32_tic6x_link_hash_table *htab; 3176 bfd *dynobj; 3177 asection *s; 3178 bfd_boolean relocs; 3179 bfd *ibfd; 3180 3181 htab = elf32_tic6x_hash_table (info); 3182 dynobj = htab->elf.dynobj; 3183 if (dynobj == NULL) 3184 abort (); 3185 3186 if (htab->elf.dynamic_sections_created) 3187 { 3188 /* Set the contents of the .interp section to the interpreter. */ 3189 if (bfd_link_executable (info) && !info->nointerp) 3190 { 3191 s = bfd_get_linker_section (dynobj, ".interp"); 3192 if (s == NULL) 3193 abort (); 3194 s->size = sizeof ELF_DYNAMIC_INTERPRETER; 3195 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; 3196 } 3197 } 3198 3199 /* Set up .got offsets for local syms, and space for local dynamic 3200 relocs. */ 3201 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) 3202 { 3203 bfd_signed_vma *local_got; 3204 bfd_signed_vma *end_local_got; 3205 bfd_size_type locsymcount; 3206 Elf_Internal_Shdr *symtab_hdr; 3207 asection *srel; 3208 3209 for (s = ibfd->sections; s != NULL; s = s->next) 3210 { 3211 struct elf_dyn_relocs *p; 3212 3213 for (p = ((struct elf_dyn_relocs *) 3214 elf_section_data (s)->local_dynrel); 3215 p != NULL; 3216 p = p->next) 3217 { 3218 if (!bfd_is_abs_section (p->sec) 3219 && bfd_is_abs_section (p->sec->output_section)) 3220 { 3221 /* Input section has been discarded, either because 3222 it is a copy of a linkonce section or due to 3223 linker script /DISCARD/, so we'll be discarding 3224 the relocs too. */ 3225 } 3226 else if (p->count != 0) 3227 { 3228 srel = elf_section_data (p->sec)->sreloc; 3229 srel->size += p->count * sizeof (Elf32_External_Rela); 3230 if ((p->sec->output_section->flags & SEC_READONLY) != 0) 3231 info->flags |= DF_TEXTREL; 3232 } 3233 } 3234 } 3235 3236 local_got = elf_local_got_refcounts (ibfd); 3237 if (!local_got) 3238 continue; 3239 3240 symtab_hdr = &elf_symtab_hdr (ibfd); 3241 locsymcount = symtab_hdr->sh_info; 3242 end_local_got = local_got + locsymcount; 3243 s = htab->elf.sgot; 3244 srel = htab->elf.srelgot; 3245 for (; local_got < end_local_got; ++local_got) 3246 { 3247 if (*local_got > 0) 3248 { 3249 *local_got = s->size; 3250 s->size += 4; 3251 3252 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd)) 3253 { 3254 srel->size += sizeof (Elf32_External_Rela); 3255 } 3256 } 3257 else 3258 *local_got = (bfd_vma) -1; 3259 } 3260 } 3261 3262 /* Allocate global sym .plt and .got entries, and space for global 3263 sym dynamic relocs. */ 3264 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info); 3265 3266 /* We now have determined the sizes of the various dynamic sections. 3267 Allocate memory for them. */ 3268 relocs = FALSE; 3269 for (s = dynobj->sections; s != NULL; s = s->next) 3270 { 3271 bfd_boolean strip_section = TRUE; 3272 3273 if ((s->flags & SEC_LINKER_CREATED) == 0) 3274 continue; 3275 3276 if (s == htab->dsbt) 3277 s->size = 4 * htab->params.dsbt_size; 3278 else if (s == htab->elf.splt 3279 || s == htab->elf.sgot 3280 || s == htab->elf.sgotplt 3281 || s == htab->elf.sdynbss 3282 || s == htab->elf.sdynrelro) 3283 { 3284 /* Strip this section if we don't need it; see the 3285 comment below. */ 3286 /* We'd like to strip these sections if they aren't needed, but if 3287 we've exported dynamic symbols from them we must leave them. 3288 It's too late to tell BFD to get rid of the symbols. */ 3289 3290 if (htab->elf.hplt != NULL) 3291 strip_section = FALSE; 3292 3293 /* Round up the size of the PLT section to a multiple of 32. */ 3294 if (s == htab->elf.splt && s->size > 0) 3295 s->size = (s->size + 31) & ~(bfd_vma)31; 3296 } 3297 else if (CONST_STRNEQ (bfd_section_name (s), ".rela")) 3298 { 3299 if (s->size != 0 3300 && s != htab->elf.srelplt) 3301 relocs = TRUE; 3302 3303 /* We use the reloc_count field as a counter if we need 3304 to copy relocs into the output file. */ 3305 s->reloc_count = 0; 3306 } 3307 else 3308 { 3309 /* It's not one of our sections, so don't allocate space. */ 3310 continue; 3311 } 3312 3313 if (s->size == 0) 3314 { 3315 /* If we don't need this section, strip it from the 3316 output file. This is mostly to handle .rel.bss and 3317 .rel.plt. We must create both sections in 3318 create_dynamic_sections, because they must be created 3319 before the linker maps input sections to output 3320 sections. The linker does that before 3321 adjust_dynamic_symbol is called, and it is that 3322 function which decides whether anything needs to go 3323 into these sections. */ 3324 if (strip_section) 3325 s->flags |= SEC_EXCLUDE; 3326 continue; 3327 } 3328 3329 if ((s->flags & SEC_HAS_CONTENTS) == 0) 3330 continue; 3331 3332 /* Allocate memory for the section contents. We use bfd_zalloc 3333 here in case unused entries are not reclaimed before the 3334 section's contents are written out. This should not happen, 3335 but this way if it does, we get a R_C6000_NONE reloc instead 3336 of garbage. */ 3337 s->contents = bfd_zalloc (dynobj, s->size); 3338 if (s->contents == NULL) 3339 return FALSE; 3340 } 3341 3342 if (htab->elf.dynamic_sections_created) 3343 { 3344 /* Add some entries to the .dynamic section. We fill in the 3345 values later, in elf32_tic6x_finish_dynamic_sections, but we 3346 must add the entries now so that we get the correct size for 3347 the .dynamic section. The DT_DEBUG entry is filled in by the 3348 dynamic linker and used by the debugger. */ 3349 #define add_dynamic_entry(TAG, VAL) \ 3350 _bfd_elf_add_dynamic_entry (info, TAG, VAL) 3351 3352 if (!_bfd_elf_add_dynamic_tags (output_bfd, info, relocs)) 3353 return FALSE; 3354 3355 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0) 3356 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size) 3357 || !add_dynamic_entry (DT_C6000_DSBT_INDEX, 3358 htab->params.dsbt_index)) 3359 return FALSE; 3360 3361 } 3362 #undef add_dynamic_entry 3363 3364 return TRUE; 3365 } 3366 3367 /* This function is called after all the input files have been read, 3368 and the input sections have been assigned to output sections. */ 3369 3370 static bfd_boolean 3371 elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) 3372 { 3373 if (elf32_tic6x_using_dsbt (output_bfd) && !bfd_link_relocatable (info) 3374 && !bfd_elf_stack_segment_size (output_bfd, info, 3375 "__stacksize", DEFAULT_STACK_SIZE)) 3376 return FALSE; 3377 3378 return TRUE; 3379 } 3380 3381 static bfd_boolean 3382 elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, 3383 struct bfd_link_info *info) 3384 { 3385 struct elf32_tic6x_link_hash_table *htab; 3386 bfd *dynobj; 3387 asection *sdyn; 3388 3389 htab = elf32_tic6x_hash_table (info); 3390 dynobj = htab->elf.dynobj; 3391 sdyn = bfd_get_linker_section (dynobj, ".dynamic"); 3392 3393 if (elf_hash_table (info)->dynamic_sections_created) 3394 { 3395 Elf32_External_Dyn * dyncon; 3396 Elf32_External_Dyn * dynconend; 3397 3398 BFD_ASSERT (sdyn != NULL); 3399 3400 dyncon = (Elf32_External_Dyn *) sdyn->contents; 3401 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); 3402 3403 for (; dyncon < dynconend; dyncon++) 3404 { 3405 Elf_Internal_Dyn dyn; 3406 asection *s; 3407 3408 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); 3409 3410 switch (dyn.d_tag) 3411 { 3412 default: 3413 break; 3414 3415 case DT_C6000_DSBT_BASE: 3416 s = htab->dsbt; 3417 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset); 3418 break; 3419 3420 case DT_PLTGOT: 3421 s = htab->elf.sgotplt; 3422 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; 3423 break; 3424 3425 case DT_JMPREL: 3426 s = htab->elf.srelplt; 3427 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; 3428 break; 3429 3430 case DT_PLTRELSZ: 3431 s = htab->elf.srelplt; 3432 dyn.d_un.d_val = s->size; 3433 break; 3434 } 3435 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); 3436 } 3437 3438 /* Fill in the first entry in the procedure linkage table. */ 3439 if (htab->elf.splt && htab->elf.splt->size > 0) 3440 { 3441 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma 3442 + htab->elf.sgotplt->output_offset 3443 - htab->dsbt->output_section->vma 3444 - htab->dsbt->output_offset) / 4; 3445 3446 /* ldw .D2T2 *+b14[$GOT(0)],b2 */ 3447 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e, 3448 htab->elf.splt->contents); 3449 /* ldw .D2T2 *+b14[$GOT(4)],b1 */ 3450 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e, 3451 htab->elf.splt->contents + 4); 3452 /* nop 3 */ 3453 bfd_put_32 (output_bfd, 0x00004000, 3454 htab->elf.splt->contents + 8); 3455 /* b .s2 b2 */ 3456 bfd_put_32 (output_bfd, 0x00080362, 3457 htab->elf.splt->contents + 12); 3458 /* nop 5 */ 3459 bfd_put_32 (output_bfd, 0x00008000, 3460 htab->elf.splt->contents + 16); 3461 3462 elf_section_data (htab->elf.splt->output_section) 3463 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; 3464 } 3465 } 3466 3467 return TRUE; 3468 } 3469 3470 /* Return address for Ith PLT stub in section PLT, for relocation REL 3471 or (bfd_vma) -1 if it should not be included. */ 3472 3473 static bfd_vma 3474 elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt, 3475 const arelent *rel ATTRIBUTE_UNUSED) 3476 { 3477 return plt->vma + (i + 1) * PLT_ENTRY_SIZE; 3478 } 3479 3480 static int 3481 elf32_tic6x_obj_attrs_arg_type (int tag) 3482 { 3483 if (tag == Tag_ABI_compatibility) 3484 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL; 3485 else if (tag & 1) 3486 return ATTR_TYPE_FLAG_STR_VAL; 3487 else 3488 return ATTR_TYPE_FLAG_INT_VAL; 3489 } 3490 3491 static int 3492 elf32_tic6x_obj_attrs_order (int num) 3493 { 3494 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE) 3495 return Tag_ABI_conformance; 3496 if ((num - 1) < Tag_ABI_conformance) 3497 return num - 1; 3498 return num; 3499 } 3500 3501 static bfd_boolean 3502 elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag) 3503 { 3504 if ((tag & 127) < 64) 3505 { 3506 _bfd_error_handler 3507 /* xgettext:c-format */ 3508 (_("%pB: error: unknown mandatory EABI object attribute %d"), 3509 abfd, tag); 3510 bfd_set_error (bfd_error_bad_value); 3511 return FALSE; 3512 } 3513 else 3514 { 3515 _bfd_error_handler 3516 /* xgettext:c-format */ 3517 (_("%pB: warning: unknown EABI object attribute %d"), 3518 abfd, tag); 3519 return TRUE; 3520 } 3521 } 3522 3523 /* Merge the Tag_ISA attribute values ARCH1 and ARCH2 3524 and return the merged value. At present, all merges succeed, so no 3525 return value for errors is defined. */ 3526 3527 int 3528 elf32_tic6x_merge_arch_attributes (int arch1, int arch2) 3529 { 3530 int min_arch, max_arch; 3531 3532 min_arch = (arch1 < arch2 ? arch1 : arch2); 3533 max_arch = (arch1 > arch2 ? arch1 : arch2); 3534 3535 /* In most cases, the numerically greatest value is the correct 3536 merged value, but merging C64 and C67 results in C674X. */ 3537 if ((min_arch == C6XABI_Tag_ISA_C67X 3538 || min_arch == C6XABI_Tag_ISA_C67XP) 3539 && (max_arch == C6XABI_Tag_ISA_C64X 3540 || max_arch == C6XABI_Tag_ISA_C64XP)) 3541 return C6XABI_Tag_ISA_C674X; 3542 3543 return max_arch; 3544 } 3545 3546 /* Convert a Tag_ABI_array_object_alignment or 3547 Tag_ABI_array_object_align_expected tag value TAG to a 3548 corresponding alignment value; return the alignment, or -1 for an 3549 unknown tag value. */ 3550 3551 static int 3552 elf32_tic6x_tag_to_array_alignment (int tag) 3553 { 3554 switch (tag) 3555 { 3556 case 0: 3557 return 8; 3558 3559 case 1: 3560 return 4; 3561 3562 case 2: 3563 return 16; 3564 3565 default: 3566 return -1; 3567 } 3568 } 3569 3570 /* Convert a Tag_ABI_array_object_alignment or 3571 Tag_ABI_array_object_align_expected alignment ALIGN to a 3572 corresponding tag value; return the tag value. */ 3573 3574 static int 3575 elf32_tic6x_array_alignment_to_tag (int align) 3576 { 3577 switch (align) 3578 { 3579 case 8: 3580 return 0; 3581 3582 case 4: 3583 return 1; 3584 3585 case 16: 3586 return 2; 3587 3588 default: 3589 abort (); 3590 } 3591 } 3592 3593 /* Merge attributes from IBFD and OBFD, returning TRUE if the merge 3594 succeeded, FALSE otherwise. */ 3595 3596 static bfd_boolean 3597 elf32_tic6x_merge_attributes (bfd *ibfd, struct bfd_link_info *info) 3598 { 3599 bfd *obfd = info->output_bfd; 3600 bfd_boolean result = TRUE; 3601 obj_attribute *in_attr; 3602 obj_attribute *out_attr; 3603 int i; 3604 int array_align_in, array_align_out, array_expect_in, array_expect_out; 3605 3606 /* FIXME: What should be checked when linking shared libraries? */ 3607 if ((ibfd->flags & DYNAMIC) != 0) 3608 return TRUE; 3609 3610 if (!elf_known_obj_attributes_proc (obfd)[0].i) 3611 { 3612 /* This is the first object. Copy the attributes. */ 3613 _bfd_elf_copy_obj_attributes (ibfd, obfd); 3614 3615 out_attr = elf_known_obj_attributes_proc (obfd); 3616 3617 /* Use the Tag_null value to indicate the attributes have been 3618 initialized. */ 3619 out_attr[0].i = 1; 3620 3621 return TRUE; 3622 } 3623 3624 in_attr = elf_known_obj_attributes_proc (ibfd); 3625 out_attr = elf_known_obj_attributes_proc (obfd); 3626 3627 /* No specification yet for handling of unknown attributes, so just 3628 ignore them and handle known ones. */ 3629 3630 if (out_attr[Tag_ABI_stack_align_preserved].i 3631 < in_attr[Tag_ABI_stack_align_needed].i) 3632 { 3633 _bfd_error_handler 3634 /* xgettext:c-format */ 3635 (_("error: %pB requires more stack alignment than %pB preserves"), 3636 ibfd, obfd); 3637 result = FALSE; 3638 } 3639 if (in_attr[Tag_ABI_stack_align_preserved].i 3640 < out_attr[Tag_ABI_stack_align_needed].i) 3641 { 3642 _bfd_error_handler 3643 /* xgettext:c-format */ 3644 (_("error: %pB requires more stack alignment than %pB preserves"), 3645 obfd, ibfd); 3646 result = FALSE; 3647 } 3648 3649 array_align_in = elf32_tic6x_tag_to_array_alignment 3650 (in_attr[Tag_ABI_array_object_alignment].i); 3651 if (array_align_in == -1) 3652 { 3653 _bfd_error_handler 3654 (_("error: unknown Tag_ABI_array_object_alignment value in %pB"), 3655 ibfd); 3656 result = FALSE; 3657 } 3658 array_align_out = elf32_tic6x_tag_to_array_alignment 3659 (out_attr[Tag_ABI_array_object_alignment].i); 3660 if (array_align_out == -1) 3661 { 3662 _bfd_error_handler 3663 (_("error: unknown Tag_ABI_array_object_alignment value in %pB"), 3664 obfd); 3665 result = FALSE; 3666 } 3667 array_expect_in = elf32_tic6x_tag_to_array_alignment 3668 (in_attr[Tag_ABI_array_object_align_expected].i); 3669 if (array_expect_in == -1) 3670 { 3671 _bfd_error_handler 3672 (_("error: unknown Tag_ABI_array_object_align_expected value in %pB"), 3673 ibfd); 3674 result = FALSE; 3675 } 3676 array_expect_out = elf32_tic6x_tag_to_array_alignment 3677 (out_attr[Tag_ABI_array_object_align_expected].i); 3678 if (array_expect_out == -1) 3679 { 3680 _bfd_error_handler 3681 (_("error: unknown Tag_ABI_array_object_align_expected value in %pB"), 3682 obfd); 3683 result = FALSE; 3684 } 3685 3686 if (array_align_out < array_expect_in) 3687 { 3688 _bfd_error_handler 3689 /* xgettext:c-format */ 3690 (_("error: %pB requires more array alignment than %pB preserves"), 3691 ibfd, obfd); 3692 result = FALSE; 3693 } 3694 if (array_align_in < array_expect_out) 3695 { 3696 _bfd_error_handler 3697 /* xgettext:c-format */ 3698 (_("error: %pB requires more array alignment than %pB preserves"), 3699 obfd, ibfd); 3700 result = FALSE; 3701 } 3702 3703 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++) 3704 { 3705 switch (i) 3706 { 3707 case Tag_ISA: 3708 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i, 3709 out_attr[i].i); 3710 break; 3711 3712 case Tag_ABI_wchar_t: 3713 if (out_attr[i].i == 0) 3714 out_attr[i].i = in_attr[i].i; 3715 if (out_attr[i].i != 0 3716 && in_attr[i].i != 0 3717 && out_attr[i].i != in_attr[i].i) 3718 { 3719 _bfd_error_handler 3720 /* xgettext:c-format */ 3721 (_("warning: %pB and %pB differ in wchar_t size"), obfd, ibfd); 3722 } 3723 break; 3724 3725 case Tag_ABI_stack_align_needed: 3726 if (out_attr[i].i < in_attr[i].i) 3727 out_attr[i].i = in_attr[i].i; 3728 break; 3729 3730 case Tag_ABI_stack_align_preserved: 3731 if (out_attr[i].i > in_attr[i].i) 3732 out_attr[i].i = in_attr[i].i; 3733 break; 3734 3735 case Tag_ABI_DSBT: 3736 if (out_attr[i].i != in_attr[i].i) 3737 { 3738 _bfd_error_handler 3739 /* xgettext:c-format */ 3740 (_("warning: %pB and %pB differ in whether code is " 3741 "compiled for DSBT"), 3742 obfd, ibfd); 3743 } 3744 break; 3745 3746 case Tag_ABI_PIC: 3747 case Tag_ABI_PID: 3748 /* Don't transfer these tags from dynamic objects. */ 3749 if ((ibfd->flags & DYNAMIC) != 0) 3750 continue; 3751 if (out_attr[i].i > in_attr[i].i) 3752 out_attr[i].i = in_attr[i].i; 3753 break; 3754 3755 case Tag_ABI_array_object_alignment: 3756 if (array_align_out != -1 3757 && array_align_in != -1 3758 && array_align_out > array_align_in) 3759 out_attr[i].i 3760 = elf32_tic6x_array_alignment_to_tag (array_align_in); 3761 break; 3762 3763 case Tag_ABI_array_object_align_expected: 3764 if (array_expect_out != -1 3765 && array_expect_in != -1 3766 && array_expect_out < array_expect_in) 3767 out_attr[i].i 3768 = elf32_tic6x_array_alignment_to_tag (array_expect_in); 3769 break; 3770 3771 case Tag_ABI_conformance: 3772 /* Merging for this attribute is not specified. As on ARM, 3773 treat a missing attribute as no claim to conform and only 3774 merge identical values. */ 3775 if (out_attr[i].s == NULL 3776 || in_attr[i].s == NULL 3777 || strcmp (out_attr[i].s, 3778 in_attr[i].s) != 0) 3779 out_attr[i].s = NULL; 3780 break; 3781 3782 case Tag_ABI_compatibility: 3783 /* Merged in _bfd_elf_merge_object_attributes. */ 3784 break; 3785 3786 default: 3787 result 3788 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i); 3789 break; 3790 } 3791 3792 if (in_attr[i].type && !out_attr[i].type) 3793 out_attr[i].type = in_attr[i].type; 3794 } 3795 3796 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */ 3797 if (!_bfd_elf_merge_object_attributes (ibfd, info)) 3798 return FALSE; 3799 3800 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd); 3801 3802 return result; 3803 } 3804 3805 static bfd_boolean 3806 elf32_tic6x_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) 3807 { 3808 if (!_bfd_generic_verify_endian_match (ibfd, info)) 3809 return FALSE; 3810 3811 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (info->output_bfd)) 3812 return TRUE; 3813 3814 if (!elf32_tic6x_merge_attributes (ibfd, info)) 3815 return FALSE; 3816 3817 return TRUE; 3818 } 3819 3820 /* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero, 3821 adds the edit to the start of the list. (The list must be built in order of 3822 ascending TINDEX: the function's callers are primarily responsible for 3823 maintaining that condition). */ 3824 3825 static void 3826 elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head, 3827 tic6x_unwind_table_edit **tail, 3828 tic6x_unwind_edit_type type, 3829 asection *linked_section, 3830 unsigned int tindex) 3831 { 3832 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *) 3833 xmalloc (sizeof (tic6x_unwind_table_edit)); 3834 3835 new_edit->type = type; 3836 new_edit->linked_section = linked_section; 3837 new_edit->index = tindex; 3838 3839 if (tindex > 0) 3840 { 3841 new_edit->next = NULL; 3842 3843 if (*tail) 3844 (*tail)->next = new_edit; 3845 3846 (*tail) = new_edit; 3847 3848 if (!*head) 3849 (*head) = new_edit; 3850 } 3851 else 3852 { 3853 new_edit->next = *head; 3854 3855 if (!*tail) 3856 *tail = new_edit; 3857 3858 *head = new_edit; 3859 } 3860 } 3861 3862 static _tic6x_elf_section_data * 3863 get_tic6x_elf_section_data (asection * sec) 3864 { 3865 if (sec && sec->owner && is_tic6x_elf (sec->owner)) 3866 return elf32_tic6x_section_data (sec); 3867 else 3868 return NULL; 3869 } 3870 3871 3872 /* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */ 3873 static void 3874 elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust) 3875 { 3876 asection *out_sec; 3877 3878 if (!exidx_sec->rawsize) 3879 exidx_sec->rawsize = exidx_sec->size; 3880 3881 bfd_set_section_size (exidx_sec, exidx_sec->size + adjust); 3882 out_sec = exidx_sec->output_section; 3883 /* Adjust size of output section. */ 3884 bfd_set_section_size (out_sec, out_sec->size +adjust); 3885 } 3886 3887 /* Insert an EXIDX_CANTUNWIND marker at the end of a section. */ 3888 static void 3889 elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec) 3890 { 3891 struct _tic6x_elf_section_data *exidx_data; 3892 3893 exidx_data = get_tic6x_elf_section_data (exidx_sec); 3894 elf32_tic6x_add_unwind_table_edit ( 3895 &exidx_data->u.exidx.unwind_edit_list, 3896 &exidx_data->u.exidx.unwind_edit_tail, 3897 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX); 3898 3899 elf32_tic6x_adjust_exidx_size (exidx_sec, 8); 3900 } 3901 3902 /* Scan .cx6abi.exidx tables, and create a list describing edits which 3903 should be made to those tables, such that: 3904 3905 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries. 3906 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind 3907 codes which have been inlined into the index). 3908 3909 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged. 3910 3911 The edits are applied when the tables are written 3912 (in elf32_tic6x_write_section). 3913 */ 3914 3915 bfd_boolean 3916 elf32_tic6x_fix_exidx_coverage (asection **text_section_order, 3917 unsigned int num_text_sections, 3918 struct bfd_link_info *info, 3919 bfd_boolean merge_exidx_entries) 3920 { 3921 bfd *inp; 3922 unsigned int last_second_word = 0, i; 3923 asection *last_exidx_sec = NULL; 3924 asection *last_text_sec = NULL; 3925 int last_unwind_type = -1; 3926 3927 /* Walk over all EXIDX sections, and create backlinks from the corrsponding 3928 text sections. */ 3929 for (inp = info->input_bfds; inp != NULL; inp = inp->link.next) 3930 { 3931 asection *sec; 3932 3933 for (sec = inp->sections; sec != NULL; sec = sec->next) 3934 { 3935 struct bfd_elf_section_data *elf_sec = elf_section_data (sec); 3936 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr; 3937 3938 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND) 3939 continue; 3940 3941 if (elf_sec->linked_to) 3942 { 3943 Elf_Internal_Shdr *linked_hdr 3944 = &elf_section_data (elf_sec->linked_to)->this_hdr; 3945 struct _tic6x_elf_section_data *linked_sec_tic6x_data 3946 = get_tic6x_elf_section_data (linked_hdr->bfd_section); 3947 3948 if (linked_sec_tic6x_data == NULL) 3949 continue; 3950 3951 /* Link this .c6xabi.exidx section back from the 3952 text section it describes. */ 3953 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec; 3954 } 3955 } 3956 } 3957 3958 /* Walk all text sections in order of increasing VMA. Eilminate duplicate 3959 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes), 3960 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */ 3961 3962 for (i = 0; i < num_text_sections; i++) 3963 { 3964 asection *sec = text_section_order[i]; 3965 asection *exidx_sec; 3966 struct _tic6x_elf_section_data *tic6x_data 3967 = get_tic6x_elf_section_data (sec); 3968 struct _tic6x_elf_section_data *exidx_data; 3969 bfd_byte *contents = NULL; 3970 int deleted_exidx_bytes = 0; 3971 bfd_vma j; 3972 tic6x_unwind_table_edit *unwind_edit_head = NULL; 3973 tic6x_unwind_table_edit *unwind_edit_tail = NULL; 3974 Elf_Internal_Shdr *hdr; 3975 bfd *ibfd; 3976 3977 if (tic6x_data == NULL) 3978 continue; 3979 3980 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec; 3981 if (exidx_sec == NULL) 3982 { 3983 /* Section has no unwind data. */ 3984 if (last_unwind_type == 0 || !last_exidx_sec) 3985 continue; 3986 3987 /* Ignore zero sized sections. */ 3988 if (sec->size == 0) 3989 continue; 3990 3991 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec); 3992 last_unwind_type = 0; 3993 continue; 3994 } 3995 3996 /* Skip /DISCARD/ sections. */ 3997 if (bfd_is_abs_section (exidx_sec->output_section)) 3998 continue; 3999 4000 hdr = &elf_section_data (exidx_sec)->this_hdr; 4001 if (hdr->sh_type != SHT_C6000_UNWIND) 4002 continue; 4003 4004 exidx_data = get_tic6x_elf_section_data (exidx_sec); 4005 if (exidx_data == NULL) 4006 continue; 4007 4008 ibfd = exidx_sec->owner; 4009 4010 if (hdr->contents != NULL) 4011 contents = hdr->contents; 4012 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents)) 4013 /* An error? */ 4014 continue; 4015 4016 for (j = 0; j < hdr->sh_size; j += 8) 4017 { 4018 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4); 4019 int unwind_type; 4020 int elide = 0; 4021 4022 /* An EXIDX_CANTUNWIND entry. */ 4023 if (second_word == 1) 4024 { 4025 if (last_unwind_type == 0) 4026 elide = 1; 4027 unwind_type = 0; 4028 } 4029 /* Inlined unwinding data. Merge if equal to previous. */ 4030 else if ((second_word & 0x80000000) != 0) 4031 { 4032 if (merge_exidx_entries 4033 && last_second_word == second_word 4034 && last_unwind_type == 1) 4035 elide = 1; 4036 unwind_type = 1; 4037 last_second_word = second_word; 4038 } 4039 /* Normal table entry. In theory we could merge these too, 4040 but duplicate entries are likely to be much less common. */ 4041 else 4042 unwind_type = 2; 4043 4044 if (elide) 4045 { 4046 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head, 4047 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8); 4048 4049 deleted_exidx_bytes += 8; 4050 } 4051 4052 last_unwind_type = unwind_type; 4053 } 4054 4055 /* Free contents if we allocated it ourselves. */ 4056 if (contents != hdr->contents) 4057 free (contents); 4058 4059 /* Record edits to be applied later (in elf32_tic6x_write_section). */ 4060 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head; 4061 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail; 4062 4063 if (deleted_exidx_bytes > 0) 4064 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes); 4065 4066 last_exidx_sec = exidx_sec; 4067 last_text_sec = sec; 4068 } 4069 4070 /* Add terminating CANTUNWIND entry. */ 4071 if (last_exidx_sec && last_unwind_type != 0) 4072 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec); 4073 4074 return TRUE; 4075 } 4076 4077 /* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */ 4078 4079 static unsigned long 4080 elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend) 4081 { 4082 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful); 4083 } 4084 4085 /* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31 4086 relocations. OFFSET is in bytes, and will be scaled before encoding. */ 4087 4088 4089 static void 4090 elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from, 4091 bfd_vma offset) 4092 { 4093 unsigned long first_word = bfd_get_32 (output_bfd, from); 4094 unsigned long second_word = bfd_get_32 (output_bfd, from + 4); 4095 4096 offset >>= 1; 4097 /* High bit of first word is supposed to be zero. */ 4098 if ((first_word & 0x80000000ul) == 0) 4099 first_word = elf32_tic6x_add_low31 (first_word, offset); 4100 4101 /* If the high bit of the first word is clear, and the bit pattern is not 0x1 4102 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */ 4103 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0)) 4104 second_word = elf32_tic6x_add_low31 (second_word, offset); 4105 4106 bfd_put_32 (output_bfd, first_word, to); 4107 bfd_put_32 (output_bfd, second_word, to + 4); 4108 } 4109 4110 /* Do the actual mangling of exception index tables. */ 4111 4112 static bfd_boolean 4113 elf32_tic6x_write_section (bfd *output_bfd, 4114 struct bfd_link_info *link_info, 4115 asection *sec, 4116 bfd_byte *contents) 4117 { 4118 _tic6x_elf_section_data *tic6x_data; 4119 struct elf32_tic6x_link_hash_table *globals 4120 = elf32_tic6x_hash_table (link_info); 4121 bfd_vma offset = sec->output_section->vma + sec->output_offset; 4122 4123 if (globals == NULL) 4124 return FALSE; 4125 4126 /* If this section has not been allocated an _tic6x_elf_section_data 4127 structure then we cannot record anything. */ 4128 tic6x_data = get_tic6x_elf_section_data (sec); 4129 if (tic6x_data == NULL) 4130 return FALSE; 4131 4132 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND) 4133 return FALSE; 4134 4135 tic6x_unwind_table_edit *edit_node 4136 = tic6x_data->u.exidx.unwind_edit_list; 4137 /* Now, sec->size is the size of the section we will write. The original 4138 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND 4139 markers) was sec->rawsize. (This isn't the case if we perform no 4140 edits, then rawsize will be zero and we should use size). */ 4141 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size); 4142 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size; 4143 unsigned int in_index, out_index; 4144 bfd_vma add_to_offsets = 0; 4145 4146 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;) 4147 { 4148 if (edit_node) 4149 { 4150 unsigned int edit_index = edit_node->index; 4151 4152 if (in_index < edit_index && in_index * 8 < input_size) 4153 { 4154 elf32_tic6x_copy_exidx_entry (output_bfd, 4155 edited_contents + out_index * 8, 4156 contents + in_index * 8, add_to_offsets); 4157 out_index++; 4158 in_index++; 4159 } 4160 else if (in_index == edit_index 4161 || (in_index * 8 >= input_size 4162 && edit_index == UINT_MAX)) 4163 { 4164 switch (edit_node->type) 4165 { 4166 case DELETE_EXIDX_ENTRY: 4167 in_index++; 4168 add_to_offsets += 8; 4169 break; 4170 4171 case INSERT_EXIDX_CANTUNWIND_AT_END: 4172 { 4173 asection *text_sec = edit_node->linked_section; 4174 bfd_vma text_offset = text_sec->output_section->vma 4175 + text_sec->output_offset 4176 + text_sec->size; 4177 bfd_vma exidx_offset = offset + out_index * 8; 4178 unsigned long prel31_offset; 4179 4180 /* Note: this is meant to be equivalent to an 4181 R_C6000_PREL31 relocation. These synthetic 4182 EXIDX_CANTUNWIND markers are not relocated by the 4183 usual BFD method. */ 4184 prel31_offset = ((text_offset - exidx_offset) >> 1) 4185 & 0x7ffffffful; 4186 4187 /* First address we can't unwind. */ 4188 bfd_put_32 (output_bfd, prel31_offset, 4189 &edited_contents[out_index * 8]); 4190 4191 /* Code for EXIDX_CANTUNWIND. */ 4192 bfd_put_32 (output_bfd, 0x1, 4193 &edited_contents[out_index * 8 + 4]); 4194 4195 out_index++; 4196 add_to_offsets -= 8; 4197 } 4198 break; 4199 } 4200 4201 edit_node = edit_node->next; 4202 } 4203 } 4204 else 4205 { 4206 /* No more edits, copy remaining entries verbatim. */ 4207 elf32_tic6x_copy_exidx_entry (output_bfd, 4208 edited_contents + out_index * 8, 4209 contents + in_index * 8, add_to_offsets); 4210 out_index++; 4211 in_index++; 4212 } 4213 } 4214 4215 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD)) 4216 bfd_set_section_contents (output_bfd, sec->output_section, 4217 edited_contents, 4218 (file_ptr) sec->output_offset, sec->size); 4219 4220 return TRUE; 4221 } 4222 4223 #define elf32_bed elf32_tic6x_bed 4224 4225 #define TARGET_LITTLE_SYM tic6x_elf32_le_vec 4226 #define TARGET_LITTLE_NAME "elf32-tic6x-le" 4227 #define TARGET_BIG_SYM tic6x_elf32_be_vec 4228 #define TARGET_BIG_NAME "elf32-tic6x-be" 4229 #define ELF_ARCH bfd_arch_tic6x 4230 #define ELF_TARGET_ID TIC6X_ELF_DATA 4231 #define ELF_MACHINE_CODE EM_TI_C6000 4232 #define ELF_MAXPAGESIZE 0x1000 4233 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup 4234 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup 4235 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data 4236 #define bfd_elf32_mkobject elf32_tic6x_mkobject 4237 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create 4238 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook 4239 #define elf_backend_stack_align 8 4240 #define elf_backend_can_gc_sections 1 4241 #define elf_backend_default_use_rela_p 1 4242 #define elf_backend_may_use_rel_p 1 4243 #define elf_backend_may_use_rela_p 1 4244 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type 4245 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown 4246 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order 4247 #define elf_backend_obj_attrs_section ".c6xabi.attributes" 4248 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES 4249 #define elf_backend_obj_attrs_vendor "c6xabi" 4250 #define elf_backend_can_refcount 1 4251 #define elf_backend_want_got_plt 1 4252 #define elf_backend_want_dynbss 1 4253 #define elf_backend_want_dynrelro 1 4254 #define elf_backend_plt_readonly 1 4255 #define elf_backend_rela_normal 1 4256 #define elf_backend_got_header_size 8 4257 #define elf_backend_fake_sections elf32_tic6x_fake_sections 4258 #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections 4259 #define elf_backend_create_dynamic_sections \ 4260 elf32_tic6x_create_dynamic_sections 4261 #define elf_backend_adjust_dynamic_symbol \ 4262 elf32_tic6x_adjust_dynamic_symbol 4263 #define elf_backend_check_relocs elf32_tic6x_check_relocs 4264 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook 4265 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing 4266 #define elf_backend_link_output_symbol_hook \ 4267 elf32_tic6x_link_output_symbol_hook 4268 #define elf_backend_section_from_bfd_section \ 4269 elf32_tic6x_section_from_bfd_section 4270 #define elf_backend_relocate_section elf32_tic6x_relocate_section 4271 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible 4272 #define elf_backend_finish_dynamic_symbol \ 4273 elf32_tic6x_finish_dynamic_symbol 4274 #define elf_backend_always_size_sections \ 4275 elf32_tic6x_always_size_sections 4276 #define elf_backend_size_dynamic_sections \ 4277 elf32_tic6x_size_dynamic_sections 4278 #define elf_backend_finish_dynamic_sections \ 4279 elf32_tic6x_finish_dynamic_sections 4280 #define bfd_elf32_bfd_final_link \ 4281 elf32_tic6x_final_link 4282 #define elf_backend_write_section elf32_tic6x_write_section 4283 #define elf_info_to_howto elf32_tic6x_info_to_howto 4284 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel 4285 4286 #undef elf_backend_omit_section_dynsym 4287 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym 4288 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val 4289 4290 #include "elf32-target.h" 4291 4292 #undef elf32_bed 4293 #define elf32_bed elf32_tic6x_linux_bed 4294 4295 #undef TARGET_LITTLE_SYM 4296 #define TARGET_LITTLE_SYM tic6x_elf32_linux_le_vec 4297 #undef TARGET_LITTLE_NAME 4298 #define TARGET_LITTLE_NAME "elf32-tic6x-linux-le" 4299 #undef TARGET_BIG_SYM 4300 #define TARGET_BIG_SYM tic6x_elf32_linux_be_vec 4301 #undef TARGET_BIG_NAME 4302 #define TARGET_BIG_NAME "elf32-tic6x-linux-be" 4303 #undef ELF_OSABI 4304 #define ELF_OSABI ELFOSABI_C6000_LINUX 4305 4306 #include "elf32-target.h" 4307 4308 #undef elf32_bed 4309 #define elf32_bed elf32_tic6x_elf_bed 4310 4311 #undef TARGET_LITTLE_SYM 4312 #define TARGET_LITTLE_SYM tic6x_elf32_c6000_le_vec 4313 #undef TARGET_LITTLE_NAME 4314 #define TARGET_LITTLE_NAME "elf32-tic6x-elf-le" 4315 #undef TARGET_BIG_SYM 4316 #define TARGET_BIG_SYM tic6x_elf32_c6000_be_vec 4317 #undef TARGET_BIG_NAME 4318 #define TARGET_BIG_NAME "elf32-tic6x-elf-be" 4319 #undef ELF_OSABI 4320 #define ELF_OSABI ELFOSABI_C6000_ELFABI 4321 4322 #include "elf32-target.h" 4323