1 /* 32-bit ELF support for TI C6X 2 Copyright 2010, 2011 3 Free Software Foundation, Inc. 4 Contributed by Joseph Myers <joseph@codesourcery.com> 5 Bernd Schmidt <bernds@codesourcery.com> 6 7 This file is part of BFD, the Binary File Descriptor library. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 22 MA 02110-1301, USA. */ 23 24 #include "sysdep.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 /* Short-cuts to get to dynamic linker sections. */ 47 asection *sdynbss; 48 asection *srelbss; 49 50 /* C6X specific command line arguments. */ 51 struct elf32_tic6x_params params; 52 53 /* Small local sym cache. */ 54 struct sym_cache sym_cache; 55 56 /* The output BFD, for convenience. */ 57 bfd *obfd; 58 59 /* The .dsbt section. */ 60 asection *dsbt; 61 }; 62 63 /* Get the TI C6X ELF linker hash table from a link_info structure. */ 64 65 #define elf32_tic6x_hash_table(p) \ 66 ((struct elf32_tic6x_link_hash_table *) ((p)->hash)) 67 68 /* TI C6X ELF linker hash entry. */ 69 70 struct elf32_tic6x_link_hash_entry 71 { 72 struct elf_link_hash_entry elf; 73 74 /* Track dynamic relocs copied for this symbol. */ 75 struct elf_dyn_relocs *dyn_relocs; 76 }; 77 78 struct elf32_tic6x_obj_tdata 79 { 80 struct elf_obj_tdata root; 81 82 /* Whether to use RELA relocations when generating relocations. 83 This is a per-object flag to allow the assembler to generate REL 84 relocations for use in linker testcases. */ 85 bfd_boolean use_rela_p; 86 }; 87 88 #define elf32_tic6x_tdata(abfd) \ 89 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any) 90 91 #define is_tic6x_elf(bfd) \ 92 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ 93 && elf_tdata (bfd) != NULL \ 94 && elf_object_id (bfd) == TIC6X_ELF_DATA) 95 96 /* C6X ELF uses two common sections. One is the usual one, and the 97 other is for small objects. All the small objects are kept 98 together, and then referenced via the gp pointer, which yields 99 faster assembler code. This is what we use for the small common 100 section. This approach is copied from ecoff.c. */ 101 static asection tic6x_elf_scom_section; 102 static asymbol tic6x_elf_scom_symbol; 103 static asymbol *tic6x_elf_scom_symbol_ptr; 104 105 static reloc_howto_type elf32_tic6x_howto_table[] = 106 { 107 HOWTO (R_C6000_NONE, /* type */ 108 0, /* rightshift */ 109 0, /* size (0 = byte, 1 = short, 2 = long) */ 110 0, /* bitsize */ 111 FALSE, /* pc_relative */ 112 0, /* bitpos */ 113 complain_overflow_dont,/* complain_on_overflow */ 114 bfd_elf_generic_reloc, /* special_function */ 115 "R_C6000_NONE", /* name */ 116 FALSE, /* partial_inplace */ 117 0, /* src_mask */ 118 0, /* dst_mask */ 119 FALSE), /* pcrel_offset */ 120 HOWTO (R_C6000_ABS32, /* type */ 121 0, /* rightshift */ 122 2, /* size (0 = byte, 1 = short, 2 = long) */ 123 32, /* bitsize */ 124 FALSE, /* pc_relative */ 125 0, /* bitpos */ 126 complain_overflow_dont,/* complain_on_overflow */ 127 bfd_elf_generic_reloc, /* special_function */ 128 "R_C6000_ABS32", /* name */ 129 FALSE, /* partial_inplace */ 130 0, /* src_mask */ 131 0xffffffff, /* dst_mask */ 132 FALSE), /* pcrel_offset */ 133 HOWTO (R_C6000_ABS16, /* type */ 134 0, /* rightshift */ 135 1, /* size (0 = byte, 1 = short, 2 = long) */ 136 16, /* bitsize */ 137 FALSE, /* pc_relative */ 138 0, /* bitpos */ 139 complain_overflow_bitfield,/* complain_on_overflow */ 140 bfd_elf_generic_reloc, /* special_function */ 141 "R_C6000_ABS16", /* name */ 142 FALSE, /* partial_inplace */ 143 0, /* src_mask */ 144 0x0000ffff, /* dst_mask */ 145 FALSE), /* pcrel_offset */ 146 HOWTO (R_C6000_ABS8, /* type */ 147 0, /* rightshift */ 148 0, /* size (0 = byte, 1 = short, 2 = long) */ 149 8, /* bitsize */ 150 FALSE, /* pc_relative */ 151 0, /* bitpos */ 152 complain_overflow_bitfield,/* complain_on_overflow */ 153 bfd_elf_generic_reloc, /* special_function */ 154 "R_C6000_ABS8", /* name */ 155 FALSE, /* partial_inplace */ 156 0, /* src_mask */ 157 0x000000ff, /* dst_mask */ 158 FALSE), /* pcrel_offset */ 159 HOWTO (R_C6000_PCR_S21, /* type */ 160 2, /* rightshift */ 161 2, /* size (0 = byte, 1 = short, 2 = long) */ 162 21, /* bitsize */ 163 TRUE, /* pc_relative */ 164 7, /* bitpos */ 165 complain_overflow_signed,/* complain_on_overflow */ 166 bfd_elf_generic_reloc, /* special_function */ 167 "R_C6000_PCR_S21", /* name */ 168 FALSE, /* partial_inplace */ 169 0, /* src_mask */ 170 0x0fffff80, /* dst_mask */ 171 TRUE), /* pcrel_offset */ 172 HOWTO (R_C6000_PCR_S12, /* type */ 173 2, /* rightshift */ 174 2, /* size (0 = byte, 1 = short, 2 = long) */ 175 12, /* bitsize */ 176 TRUE, /* pc_relative */ 177 16, /* bitpos */ 178 complain_overflow_signed,/* complain_on_overflow */ 179 bfd_elf_generic_reloc, /* special_function */ 180 "R_C6000_PCR_S12", /* name */ 181 FALSE, /* partial_inplace */ 182 0, /* src_mask */ 183 0x0fff0000, /* dst_mask */ 184 TRUE), /* pcrel_offset */ 185 HOWTO (R_C6000_PCR_S10, /* type */ 186 2, /* rightshift */ 187 2, /* size (0 = byte, 1 = short, 2 = long) */ 188 10, /* bitsize */ 189 TRUE, /* pc_relative */ 190 13, /* bitpos */ 191 complain_overflow_signed,/* complain_on_overflow */ 192 bfd_elf_generic_reloc, /* special_function */ 193 "R_C6000_PCR_S10", /* name */ 194 FALSE, /* partial_inplace */ 195 0, /* src_mask */ 196 0x007fe000, /* dst_mask */ 197 TRUE), /* pcrel_offset */ 198 HOWTO (R_C6000_PCR_S7, /* type */ 199 2, /* rightshift */ 200 2, /* size (0 = byte, 1 = short, 2 = long) */ 201 7, /* bitsize */ 202 TRUE, /* pc_relative */ 203 16, /* bitpos */ 204 complain_overflow_signed,/* complain_on_overflow */ 205 bfd_elf_generic_reloc, /* special_function */ 206 "R_C6000_PCR_S7", /* name */ 207 FALSE, /* partial_inplace */ 208 0, /* src_mask */ 209 0x007f0000, /* dst_mask */ 210 TRUE), /* pcrel_offset */ 211 HOWTO (R_C6000_ABS_S16, /* type */ 212 0, /* rightshift */ 213 2, /* size (0 = byte, 1 = short, 2 = long) */ 214 16, /* bitsize */ 215 FALSE, /* pc_relative */ 216 7, /* bitpos */ 217 complain_overflow_signed,/* complain_on_overflow */ 218 bfd_elf_generic_reloc, /* special_function */ 219 "R_C6000_ABS_S16", /* name */ 220 FALSE, /* partial_inplace */ 221 0, /* src_mask */ 222 0x007fff80, /* dst_mask */ 223 FALSE), /* pcrel_offset */ 224 HOWTO (R_C6000_ABS_L16, /* type */ 225 0, /* rightshift */ 226 2, /* size (0 = byte, 1 = short, 2 = long) */ 227 16, /* bitsize */ 228 FALSE, /* pc_relative */ 229 7, /* bitpos */ 230 complain_overflow_dont,/* complain_on_overflow */ 231 bfd_elf_generic_reloc, /* special_function */ 232 "R_C6000_ABS_L16", /* name */ 233 FALSE, /* partial_inplace */ 234 0, /* src_mask */ 235 0x007fff80, /* dst_mask */ 236 FALSE), /* pcrel_offset */ 237 HOWTO (R_C6000_ABS_H16, /* type */ 238 16, /* rightshift */ 239 2, /* size (0 = byte, 1 = short, 2 = long) */ 240 16, /* bitsize */ 241 FALSE, /* pc_relative */ 242 7, /* bitpos */ 243 complain_overflow_dont,/* complain_on_overflow */ 244 bfd_elf_generic_reloc, /* special_function */ 245 "R_C6000_ABS_H16", /* name */ 246 FALSE, /* partial_inplace */ 247 0, /* src_mask */ 248 0x007fff80, /* dst_mask */ 249 FALSE), /* pcrel_offset */ 250 HOWTO (R_C6000_SBR_U15_B, /* type */ 251 0, /* rightshift */ 252 2, /* size (0 = byte, 1 = short, 2 = long) */ 253 15, /* bitsize */ 254 FALSE, /* pc_relative */ 255 8, /* bitpos */ 256 complain_overflow_unsigned,/* complain_on_overflow */ 257 bfd_elf_generic_reloc, /* special_function */ 258 "R_C6000_SBR_U15_B", /* name */ 259 FALSE, /* partial_inplace */ 260 0, /* src_mask */ 261 0x007fff00, /* dst_mask */ 262 FALSE), /* pcrel_offset */ 263 HOWTO (R_C6000_SBR_U15_H, /* type */ 264 1, /* rightshift */ 265 2, /* size (0 = byte, 1 = short, 2 = long) */ 266 15, /* bitsize */ 267 FALSE, /* pc_relative */ 268 8, /* bitpos */ 269 complain_overflow_unsigned,/* complain_on_overflow */ 270 bfd_elf_generic_reloc, /* special_function */ 271 "R_C6000_SBR_U15_H", /* name */ 272 FALSE, /* partial_inplace */ 273 0, /* src_mask */ 274 0x007fff00, /* dst_mask */ 275 FALSE), /* pcrel_offset */ 276 HOWTO (R_C6000_SBR_U15_W, /* type */ 277 2, /* rightshift */ 278 2, /* size (0 = byte, 1 = short, 2 = long) */ 279 15, /* bitsize */ 280 FALSE, /* pc_relative */ 281 8, /* bitpos */ 282 complain_overflow_unsigned,/* complain_on_overflow */ 283 bfd_elf_generic_reloc, /* special_function */ 284 "R_C6000_SBR_U15_W", /* name */ 285 FALSE, /* partial_inplace */ 286 0, /* src_mask */ 287 0x007fff00, /* dst_mask */ 288 FALSE), /* pcrel_offset */ 289 HOWTO (R_C6000_SBR_S16, /* type */ 290 0, /* rightshift */ 291 2, /* size (0 = byte, 1 = short, 2 = long) */ 292 16, /* bitsize */ 293 FALSE, /* pc_relative */ 294 7, /* bitpos */ 295 complain_overflow_signed,/* complain_on_overflow */ 296 bfd_elf_generic_reloc, /* special_function */ 297 "R_C6000_SBR_S16", /* name */ 298 FALSE, /* partial_inplace */ 299 0, /* src_mask */ 300 0x007fff80, /* dst_mask */ 301 FALSE), /* pcrel_offset */ 302 HOWTO (R_C6000_SBR_L16_B, /* type */ 303 0, /* rightshift */ 304 2, /* size (0 = byte, 1 = short, 2 = long) */ 305 16, /* bitsize */ 306 FALSE, /* pc_relative */ 307 7, /* bitpos */ 308 complain_overflow_dont,/* complain_on_overflow */ 309 bfd_elf_generic_reloc, /* special_function */ 310 "R_C6000_SBR_L16_B", /* name */ 311 FALSE, /* partial_inplace */ 312 0, /* src_mask */ 313 0x007fff80, /* dst_mask */ 314 FALSE), /* pcrel_offset */ 315 HOWTO (R_C6000_SBR_L16_H, /* type */ 316 1, /* rightshift */ 317 2, /* size (0 = byte, 1 = short, 2 = long) */ 318 16, /* bitsize */ 319 FALSE, /* pc_relative */ 320 7, /* bitpos */ 321 complain_overflow_dont,/* complain_on_overflow */ 322 bfd_elf_generic_reloc, /* special_function */ 323 "R_C6000_SBR_L16_H", /* name */ 324 FALSE, /* partial_inplace */ 325 0, /* src_mask */ 326 0x007fff80, /* dst_mask */ 327 FALSE), /* pcrel_offset */ 328 HOWTO (R_C6000_SBR_L16_W, /* type */ 329 2, /* rightshift */ 330 2, /* size (0 = byte, 1 = short, 2 = long) */ 331 16, /* bitsize */ 332 FALSE, /* pc_relative */ 333 7, /* bitpos */ 334 complain_overflow_dont,/* complain_on_overflow */ 335 bfd_elf_generic_reloc, /* special_function */ 336 "R_C6000_SBR_L16_W", /* name */ 337 FALSE, /* partial_inplace */ 338 0, /* src_mask */ 339 0x007fff80, /* dst_mask */ 340 FALSE), /* pcrel_offset */ 341 HOWTO (R_C6000_SBR_H16_B, /* type */ 342 16, /* rightshift */ 343 2, /* size (0 = byte, 1 = short, 2 = long) */ 344 16, /* bitsize */ 345 FALSE, /* pc_relative */ 346 7, /* bitpos */ 347 complain_overflow_dont,/* complain_on_overflow */ 348 bfd_elf_generic_reloc, /* special_function */ 349 "R_C6000_SBR_H16_B", /* name */ 350 FALSE, /* partial_inplace */ 351 0, /* src_mask */ 352 0x007fff80, /* dst_mask */ 353 FALSE), /* pcrel_offset */ 354 HOWTO (R_C6000_SBR_H16_H, /* type */ 355 17, /* rightshift */ 356 2, /* size (0 = byte, 1 = short, 2 = long) */ 357 16, /* bitsize */ 358 FALSE, /* pc_relative */ 359 7, /* bitpos */ 360 complain_overflow_dont,/* complain_on_overflow */ 361 bfd_elf_generic_reloc, /* special_function */ 362 "R_C6000_SBR_H16_H", /* name */ 363 FALSE, /* partial_inplace */ 364 0, /* src_mask */ 365 0x007fff80, /* dst_mask */ 366 FALSE), /* pcrel_offset */ 367 HOWTO (R_C6000_SBR_H16_W, /* type */ 368 18, /* rightshift */ 369 2, /* size (0 = byte, 1 = short, 2 = long) */ 370 16, /* bitsize */ 371 FALSE, /* pc_relative */ 372 7, /* bitpos */ 373 complain_overflow_dont,/* complain_on_overflow */ 374 bfd_elf_generic_reloc, /* special_function */ 375 "R_C6000_SBR_H16_W", /* name */ 376 FALSE, /* partial_inplace */ 377 0, /* src_mask */ 378 0x007fff80, /* dst_mask */ 379 FALSE), /* pcrel_offset */ 380 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ 381 2, /* rightshift */ 382 2, /* size (0 = byte, 1 = short, 2 = long) */ 383 15, /* bitsize */ 384 FALSE, /* pc_relative */ 385 8, /* bitpos */ 386 complain_overflow_unsigned,/* complain_on_overflow */ 387 bfd_elf_generic_reloc, /* special_function */ 388 "R_C6000_SBR_GOT_U15_W",/* name */ 389 FALSE, /* partial_inplace */ 390 0, /* src_mask */ 391 0x007fff00, /* dst_mask */ 392 FALSE), /* pcrel_offset */ 393 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ 394 2, /* rightshift */ 395 2, /* size (0 = byte, 1 = short, 2 = long) */ 396 16, /* bitsize */ 397 FALSE, /* pc_relative */ 398 7, /* bitpos */ 399 complain_overflow_dont,/* complain_on_overflow */ 400 bfd_elf_generic_reloc, /* special_function */ 401 "R_C6000_SBR_GOT_L16_W",/* name */ 402 FALSE, /* partial_inplace */ 403 0, /* src_mask */ 404 0x007fff80, /* dst_mask */ 405 FALSE), /* pcrel_offset */ 406 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */ 407 18, /* rightshift */ 408 2, /* size (0 = byte, 1 = short, 2 = long) */ 409 16, /* bitsize */ 410 FALSE, /* pc_relative */ 411 7, /* bitpos */ 412 complain_overflow_dont,/* complain_on_overflow */ 413 bfd_elf_generic_reloc, /* special_function */ 414 "R_C6000_SBR_GOT_H16_W",/* name */ 415 FALSE, /* partial_inplace */ 416 0, /* src_mask */ 417 0x007fff80, /* dst_mask */ 418 FALSE), /* pcrel_offset */ 419 HOWTO (R_C6000_DSBT_INDEX, /* type */ 420 0, /* rightshift */ 421 2, /* size (0 = byte, 1 = short, 2 = long) */ 422 15, /* bitsize */ 423 FALSE, /* pc_relative */ 424 8, /* bitpos */ 425 complain_overflow_unsigned,/* complain_on_overflow */ 426 bfd_elf_generic_reloc, /* special_function */ 427 "R_C6000_DSBT_INDEX", /* name */ 428 FALSE, /* partial_inplace */ 429 0, /* src_mask */ 430 0x007fff00, /* dst_mask */ 431 FALSE), /* pcrel_offset */ 432 HOWTO (R_C6000_PREL31, /* type */ 433 1, /* rightshift */ 434 2, /* size (0 = byte, 1 = short, 2 = long) */ 435 31, /* bitsize */ 436 FALSE, /* pc_relative */ 437 0, /* bitpos */ 438 complain_overflow_dont,/* complain_on_overflow */ 439 bfd_elf_generic_reloc, /* special_function */ 440 "R_C6000_PREL31", /* name */ 441 FALSE, /* partial_inplace */ 442 0, /* src_mask */ 443 0x7fffffff, /* dst_mask */ 444 FALSE), /* pcrel_offset */ 445 HOWTO (R_C6000_COPY, /* type */ 446 0, /* rightshift */ 447 2, /* size (0 = byte, 1 = short, 2 = long) */ 448 32, /* bitsize */ 449 FALSE, /* pc_relative */ 450 0, /* bitpos */ 451 complain_overflow_dont,/* complain_on_overflow */ 452 bfd_elf_generic_reloc, /* special_function */ 453 "R_C6000_COPY", /* name */ 454 FALSE, /* partial_inplace */ 455 0, /* src_mask */ 456 0xffffffff, /* dst_mask */ 457 FALSE), /* pcrel_offset */ 458 HOWTO (R_C6000_JUMP_SLOT, /* type */ 459 0, /* rightshift */ 460 2, /* size (0 = byte, 1 = short, 2 = long) */ 461 32, /* bitsize */ 462 FALSE, /* pc_relative */ 463 0, /* bitpos */ 464 complain_overflow_dont,/* complain_on_overflow */ 465 bfd_elf_generic_reloc, /* special_function */ 466 "R_C6000_JUMP_SLOT", /* name */ 467 FALSE, /* partial_inplace */ 468 0, /* src_mask */ 469 0xffffffff, /* dst_mask */ 470 FALSE), /* pcrel_offset */ 471 EMPTY_HOWTO (28), 472 EMPTY_HOWTO (29), 473 EMPTY_HOWTO (30), 474 EMPTY_HOWTO (31), 475 EMPTY_HOWTO (32), 476 EMPTY_HOWTO (33), 477 EMPTY_HOWTO (34), 478 EMPTY_HOWTO (35), 479 EMPTY_HOWTO (36), 480 EMPTY_HOWTO (37), 481 EMPTY_HOWTO (38), 482 EMPTY_HOWTO (39), 483 EMPTY_HOWTO (40), 484 EMPTY_HOWTO (41), 485 EMPTY_HOWTO (42), 486 EMPTY_HOWTO (43), 487 EMPTY_HOWTO (44), 488 EMPTY_HOWTO (45), 489 EMPTY_HOWTO (46), 490 EMPTY_HOWTO (47), 491 EMPTY_HOWTO (48), 492 EMPTY_HOWTO (49), 493 EMPTY_HOWTO (50), 494 EMPTY_HOWTO (51), 495 EMPTY_HOWTO (52), 496 EMPTY_HOWTO (53), 497 EMPTY_HOWTO (54), 498 EMPTY_HOWTO (55), 499 EMPTY_HOWTO (56), 500 EMPTY_HOWTO (57), 501 EMPTY_HOWTO (58), 502 EMPTY_HOWTO (59), 503 EMPTY_HOWTO (60), 504 EMPTY_HOWTO (61), 505 EMPTY_HOWTO (62), 506 EMPTY_HOWTO (63), 507 EMPTY_HOWTO (64), 508 EMPTY_HOWTO (65), 509 EMPTY_HOWTO (66), 510 EMPTY_HOWTO (67), 511 EMPTY_HOWTO (68), 512 EMPTY_HOWTO (69), 513 EMPTY_HOWTO (70), 514 EMPTY_HOWTO (71), 515 EMPTY_HOWTO (72), 516 EMPTY_HOWTO (73), 517 EMPTY_HOWTO (74), 518 EMPTY_HOWTO (75), 519 EMPTY_HOWTO (76), 520 EMPTY_HOWTO (77), 521 EMPTY_HOWTO (78), 522 EMPTY_HOWTO (79), 523 EMPTY_HOWTO (80), 524 EMPTY_HOWTO (81), 525 EMPTY_HOWTO (82), 526 EMPTY_HOWTO (83), 527 EMPTY_HOWTO (84), 528 EMPTY_HOWTO (85), 529 EMPTY_HOWTO (86), 530 EMPTY_HOWTO (87), 531 EMPTY_HOWTO (88), 532 EMPTY_HOWTO (89), 533 EMPTY_HOWTO (90), 534 EMPTY_HOWTO (91), 535 EMPTY_HOWTO (92), 536 EMPTY_HOWTO (93), 537 EMPTY_HOWTO (94), 538 EMPTY_HOWTO (95), 539 EMPTY_HOWTO (96), 540 EMPTY_HOWTO (97), 541 EMPTY_HOWTO (98), 542 EMPTY_HOWTO (99), 543 EMPTY_HOWTO (100), 544 EMPTY_HOWTO (101), 545 EMPTY_HOWTO (102), 546 EMPTY_HOWTO (103), 547 EMPTY_HOWTO (104), 548 EMPTY_HOWTO (105), 549 EMPTY_HOWTO (106), 550 EMPTY_HOWTO (107), 551 EMPTY_HOWTO (108), 552 EMPTY_HOWTO (109), 553 EMPTY_HOWTO (110), 554 EMPTY_HOWTO (111), 555 EMPTY_HOWTO (112), 556 EMPTY_HOWTO (113), 557 EMPTY_HOWTO (114), 558 EMPTY_HOWTO (115), 559 EMPTY_HOWTO (116), 560 EMPTY_HOWTO (117), 561 EMPTY_HOWTO (118), 562 EMPTY_HOWTO (119), 563 EMPTY_HOWTO (120), 564 EMPTY_HOWTO (121), 565 EMPTY_HOWTO (122), 566 EMPTY_HOWTO (123), 567 EMPTY_HOWTO (124), 568 EMPTY_HOWTO (125), 569 EMPTY_HOWTO (126), 570 EMPTY_HOWTO (127), 571 EMPTY_HOWTO (128), 572 EMPTY_HOWTO (129), 573 EMPTY_HOWTO (130), 574 EMPTY_HOWTO (131), 575 EMPTY_HOWTO (132), 576 EMPTY_HOWTO (133), 577 EMPTY_HOWTO (134), 578 EMPTY_HOWTO (135), 579 EMPTY_HOWTO (136), 580 EMPTY_HOWTO (137), 581 EMPTY_HOWTO (138), 582 EMPTY_HOWTO (139), 583 EMPTY_HOWTO (140), 584 EMPTY_HOWTO (141), 585 EMPTY_HOWTO (142), 586 EMPTY_HOWTO (143), 587 EMPTY_HOWTO (144), 588 EMPTY_HOWTO (145), 589 EMPTY_HOWTO (146), 590 EMPTY_HOWTO (147), 591 EMPTY_HOWTO (148), 592 EMPTY_HOWTO (149), 593 EMPTY_HOWTO (150), 594 EMPTY_HOWTO (151), 595 EMPTY_HOWTO (152), 596 EMPTY_HOWTO (153), 597 EMPTY_HOWTO (154), 598 EMPTY_HOWTO (155), 599 EMPTY_HOWTO (156), 600 EMPTY_HOWTO (157), 601 EMPTY_HOWTO (158), 602 EMPTY_HOWTO (159), 603 EMPTY_HOWTO (160), 604 EMPTY_HOWTO (161), 605 EMPTY_HOWTO (162), 606 EMPTY_HOWTO (163), 607 EMPTY_HOWTO (164), 608 EMPTY_HOWTO (165), 609 EMPTY_HOWTO (166), 610 EMPTY_HOWTO (167), 611 EMPTY_HOWTO (168), 612 EMPTY_HOWTO (169), 613 EMPTY_HOWTO (170), 614 EMPTY_HOWTO (171), 615 EMPTY_HOWTO (172), 616 EMPTY_HOWTO (173), 617 EMPTY_HOWTO (174), 618 EMPTY_HOWTO (175), 619 EMPTY_HOWTO (176), 620 EMPTY_HOWTO (177), 621 EMPTY_HOWTO (178), 622 EMPTY_HOWTO (179), 623 EMPTY_HOWTO (180), 624 EMPTY_HOWTO (181), 625 EMPTY_HOWTO (182), 626 EMPTY_HOWTO (183), 627 EMPTY_HOWTO (184), 628 EMPTY_HOWTO (185), 629 EMPTY_HOWTO (186), 630 EMPTY_HOWTO (187), 631 EMPTY_HOWTO (188), 632 EMPTY_HOWTO (189), 633 EMPTY_HOWTO (190), 634 EMPTY_HOWTO (191), 635 EMPTY_HOWTO (192), 636 EMPTY_HOWTO (193), 637 EMPTY_HOWTO (194), 638 EMPTY_HOWTO (195), 639 EMPTY_HOWTO (196), 640 EMPTY_HOWTO (197), 641 EMPTY_HOWTO (198), 642 EMPTY_HOWTO (199), 643 EMPTY_HOWTO (200), 644 EMPTY_HOWTO (201), 645 EMPTY_HOWTO (202), 646 EMPTY_HOWTO (203), 647 EMPTY_HOWTO (204), 648 EMPTY_HOWTO (205), 649 EMPTY_HOWTO (206), 650 EMPTY_HOWTO (207), 651 EMPTY_HOWTO (208), 652 EMPTY_HOWTO (209), 653 EMPTY_HOWTO (210), 654 EMPTY_HOWTO (211), 655 EMPTY_HOWTO (212), 656 EMPTY_HOWTO (213), 657 EMPTY_HOWTO (214), 658 EMPTY_HOWTO (215), 659 EMPTY_HOWTO (216), 660 EMPTY_HOWTO (217), 661 EMPTY_HOWTO (218), 662 EMPTY_HOWTO (219), 663 EMPTY_HOWTO (220), 664 EMPTY_HOWTO (221), 665 EMPTY_HOWTO (222), 666 EMPTY_HOWTO (223), 667 EMPTY_HOWTO (224), 668 EMPTY_HOWTO (225), 669 EMPTY_HOWTO (226), 670 EMPTY_HOWTO (227), 671 EMPTY_HOWTO (228), 672 EMPTY_HOWTO (229), 673 EMPTY_HOWTO (230), 674 EMPTY_HOWTO (231), 675 EMPTY_HOWTO (232), 676 EMPTY_HOWTO (233), 677 EMPTY_HOWTO (234), 678 EMPTY_HOWTO (235), 679 EMPTY_HOWTO (236), 680 EMPTY_HOWTO (237), 681 EMPTY_HOWTO (238), 682 EMPTY_HOWTO (239), 683 EMPTY_HOWTO (240), 684 EMPTY_HOWTO (241), 685 EMPTY_HOWTO (242), 686 EMPTY_HOWTO (243), 687 EMPTY_HOWTO (244), 688 EMPTY_HOWTO (245), 689 EMPTY_HOWTO (246), 690 EMPTY_HOWTO (247), 691 EMPTY_HOWTO (248), 692 EMPTY_HOWTO (249), 693 EMPTY_HOWTO (250), 694 EMPTY_HOWTO (251), 695 EMPTY_HOWTO (252), 696 HOWTO (R_C6000_ALIGN, /* type */ 697 0, /* rightshift */ 698 0, /* size (0 = byte, 1 = short, 2 = long) */ 699 0, /* bitsize */ 700 FALSE, /* pc_relative */ 701 0, /* bitpos */ 702 complain_overflow_dont,/* complain_on_overflow */ 703 bfd_elf_generic_reloc, /* special_function */ 704 "R_C6000_ALIGN", /* name */ 705 FALSE, /* partial_inplace */ 706 0, /* src_mask */ 707 0, /* dst_mask */ 708 FALSE), /* pcrel_offset */ 709 HOWTO (R_C6000_FPHEAD, /* type */ 710 0, /* rightshift */ 711 0, /* size (0 = byte, 1 = short, 2 = long) */ 712 0, /* bitsize */ 713 FALSE, /* pc_relative */ 714 0, /* bitpos */ 715 complain_overflow_dont,/* complain_on_overflow */ 716 bfd_elf_generic_reloc, /* special_function */ 717 "R_C6000_FPHEAD", /* name */ 718 FALSE, /* partial_inplace */ 719 0, /* src_mask */ 720 0, /* dst_mask */ 721 FALSE), /* pcrel_offset */ 722 HOWTO (R_C6000_NOCMP, /* type */ 723 0, /* rightshift */ 724 0, /* size (0 = byte, 1 = short, 2 = long) */ 725 0, /* bitsize */ 726 FALSE, /* pc_relative */ 727 0, /* bitpos */ 728 complain_overflow_dont,/* complain_on_overflow */ 729 bfd_elf_generic_reloc, /* special_function */ 730 "R_C6000_NOCMP", /* name */ 731 FALSE, /* partial_inplace */ 732 0, /* src_mask */ 733 0, /* dst_mask */ 734 FALSE) /* pcrel_offset */ 735 }; 736 737 static reloc_howto_type elf32_tic6x_howto_table_rel[] = 738 { 739 HOWTO (R_C6000_NONE, /* type */ 740 0, /* rightshift */ 741 0, /* size (0 = byte, 1 = short, 2 = long) */ 742 0, /* bitsize */ 743 FALSE, /* pc_relative */ 744 0, /* bitpos */ 745 complain_overflow_dont,/* complain_on_overflow */ 746 bfd_elf_generic_reloc, /* special_function */ 747 "R_C6000_NONE", /* name */ 748 TRUE, /* partial_inplace */ 749 0, /* src_mask */ 750 0, /* dst_mask */ 751 FALSE), /* pcrel_offset */ 752 HOWTO (R_C6000_ABS32, /* type */ 753 0, /* rightshift */ 754 2, /* size (0 = byte, 1 = short, 2 = long) */ 755 32, /* bitsize */ 756 FALSE, /* pc_relative */ 757 0, /* bitpos */ 758 complain_overflow_dont,/* complain_on_overflow */ 759 bfd_elf_generic_reloc, /* special_function */ 760 "R_C6000_ABS32", /* name */ 761 TRUE, /* partial_inplace */ 762 0xffffffff, /* src_mask */ 763 0xffffffff, /* dst_mask */ 764 FALSE), /* pcrel_offset */ 765 HOWTO (R_C6000_ABS16, /* type */ 766 0, /* rightshift */ 767 1, /* size (0 = byte, 1 = short, 2 = long) */ 768 16, /* bitsize */ 769 FALSE, /* pc_relative */ 770 0, /* bitpos */ 771 complain_overflow_bitfield,/* complain_on_overflow */ 772 bfd_elf_generic_reloc, /* special_function */ 773 "R_C6000_ABS16", /* name */ 774 TRUE, /* partial_inplace */ 775 0x0000ffff, /* src_mask */ 776 0x0000ffff, /* dst_mask */ 777 FALSE), /* pcrel_offset */ 778 HOWTO (R_C6000_ABS8, /* type */ 779 0, /* rightshift */ 780 0, /* size (0 = byte, 1 = short, 2 = long) */ 781 8, /* bitsize */ 782 FALSE, /* pc_relative */ 783 0, /* bitpos */ 784 complain_overflow_bitfield,/* complain_on_overflow */ 785 bfd_elf_generic_reloc, /* special_function */ 786 "R_C6000_ABS8", /* name */ 787 TRUE, /* partial_inplace */ 788 0x000000ff, /* src_mask */ 789 0x000000ff, /* dst_mask */ 790 FALSE), /* pcrel_offset */ 791 HOWTO (R_C6000_PCR_S21, /* type */ 792 2, /* rightshift */ 793 2, /* size (0 = byte, 1 = short, 2 = long) */ 794 21, /* bitsize */ 795 TRUE, /* pc_relative */ 796 7, /* bitpos */ 797 complain_overflow_signed,/* complain_on_overflow */ 798 bfd_elf_generic_reloc, /* special_function */ 799 "R_C6000_PCR_S21", /* name */ 800 TRUE, /* partial_inplace */ 801 0x0fffff80, /* src_mask */ 802 0x0fffff80, /* dst_mask */ 803 TRUE), /* pcrel_offset */ 804 HOWTO (R_C6000_PCR_S12, /* type */ 805 2, /* rightshift */ 806 2, /* size (0 = byte, 1 = short, 2 = long) */ 807 12, /* bitsize */ 808 TRUE, /* pc_relative */ 809 16, /* bitpos */ 810 complain_overflow_signed,/* complain_on_overflow */ 811 bfd_elf_generic_reloc, /* special_function */ 812 "R_C6000_PCR_S12", /* name */ 813 TRUE, /* partial_inplace */ 814 0x0fff0000, /* src_mask */ 815 0x0fff0000, /* dst_mask */ 816 TRUE), /* pcrel_offset */ 817 HOWTO (R_C6000_PCR_S10, /* type */ 818 2, /* rightshift */ 819 2, /* size (0 = byte, 1 = short, 2 = long) */ 820 10, /* bitsize */ 821 TRUE, /* pc_relative */ 822 13, /* bitpos */ 823 complain_overflow_signed,/* complain_on_overflow */ 824 bfd_elf_generic_reloc, /* special_function */ 825 "R_C6000_PCR_S10", /* name */ 826 TRUE, /* partial_inplace */ 827 0x007fe000, /* src_mask */ 828 0x007fe000, /* dst_mask */ 829 TRUE), /* pcrel_offset */ 830 HOWTO (R_C6000_PCR_S7, /* type */ 831 2, /* rightshift */ 832 2, /* size (0 = byte, 1 = short, 2 = long) */ 833 7, /* bitsize */ 834 TRUE, /* pc_relative */ 835 16, /* bitpos */ 836 complain_overflow_signed,/* complain_on_overflow */ 837 bfd_elf_generic_reloc, /* special_function */ 838 "R_C6000_PCR_S7", /* name */ 839 TRUE, /* partial_inplace */ 840 0x007f0000, /* src_mask */ 841 0x007f0000, /* dst_mask */ 842 TRUE), /* pcrel_offset */ 843 HOWTO (R_C6000_ABS_S16, /* type */ 844 0, /* rightshift */ 845 2, /* size (0 = byte, 1 = short, 2 = long) */ 846 16, /* bitsize */ 847 FALSE, /* pc_relative */ 848 7, /* bitpos */ 849 complain_overflow_signed,/* complain_on_overflow */ 850 bfd_elf_generic_reloc, /* special_function */ 851 "R_C6000_ABS_S16", /* name */ 852 TRUE, /* partial_inplace */ 853 0x007fff80, /* src_mask */ 854 0x007fff80, /* dst_mask */ 855 FALSE), /* pcrel_offset */ 856 HOWTO (R_C6000_ABS_L16, /* type */ 857 0, /* rightshift */ 858 2, /* size (0 = byte, 1 = short, 2 = long) */ 859 16, /* bitsize */ 860 FALSE, /* pc_relative */ 861 7, /* bitpos */ 862 complain_overflow_dont,/* complain_on_overflow */ 863 bfd_elf_generic_reloc, /* special_function */ 864 "R_C6000_ABS_L16", /* name */ 865 TRUE, /* partial_inplace */ 866 0x007fff80, /* src_mask */ 867 0x007fff80, /* dst_mask */ 868 FALSE), /* pcrel_offset */ 869 EMPTY_HOWTO (R_C6000_ABS_H16), 870 HOWTO (R_C6000_SBR_U15_B, /* type */ 871 0, /* rightshift */ 872 2, /* size (0 = byte, 1 = short, 2 = long) */ 873 15, /* bitsize */ 874 FALSE, /* pc_relative */ 875 8, /* bitpos */ 876 complain_overflow_unsigned,/* complain_on_overflow */ 877 bfd_elf_generic_reloc, /* special_function */ 878 "R_C6000_SBR_U15_B", /* name */ 879 TRUE, /* partial_inplace */ 880 0x007fff00, /* src_mask */ 881 0x007fff00, /* dst_mask */ 882 FALSE), /* pcrel_offset */ 883 HOWTO (R_C6000_SBR_U15_H, /* type */ 884 1, /* rightshift */ 885 2, /* size (0 = byte, 1 = short, 2 = long) */ 886 15, /* bitsize */ 887 FALSE, /* pc_relative */ 888 8, /* bitpos */ 889 complain_overflow_unsigned,/* complain_on_overflow */ 890 bfd_elf_generic_reloc, /* special_function */ 891 "R_C6000_SBR_U15_H", /* name */ 892 TRUE, /* partial_inplace */ 893 0x007fff00, /* src_mask */ 894 0x007fff00, /* dst_mask */ 895 FALSE), /* pcrel_offset */ 896 HOWTO (R_C6000_SBR_U15_W, /* type */ 897 2, /* rightshift */ 898 2, /* size (0 = byte, 1 = short, 2 = long) */ 899 15, /* bitsize */ 900 FALSE, /* pc_relative */ 901 8, /* bitpos */ 902 complain_overflow_unsigned,/* complain_on_overflow */ 903 bfd_elf_generic_reloc, /* special_function */ 904 "R_C6000_SBR_U15_W", /* name */ 905 TRUE, /* partial_inplace */ 906 0x007fff00, /* src_mask */ 907 0x007fff00, /* dst_mask */ 908 FALSE), /* pcrel_offset */ 909 HOWTO (R_C6000_SBR_S16, /* type */ 910 0, /* rightshift */ 911 2, /* size (0 = byte, 1 = short, 2 = long) */ 912 16, /* bitsize */ 913 FALSE, /* pc_relative */ 914 7, /* bitpos */ 915 complain_overflow_signed,/* complain_on_overflow */ 916 bfd_elf_generic_reloc, /* special_function */ 917 "R_C6000_SBR_S16", /* name */ 918 TRUE, /* partial_inplace */ 919 0x007fff80, /* src_mask */ 920 0x007fff80, /* dst_mask */ 921 FALSE), /* pcrel_offset */ 922 HOWTO (R_C6000_SBR_L16_B, /* type */ 923 0, /* rightshift */ 924 2, /* size (0 = byte, 1 = short, 2 = long) */ 925 16, /* bitsize */ 926 FALSE, /* pc_relative */ 927 7, /* bitpos */ 928 complain_overflow_dont,/* complain_on_overflow */ 929 bfd_elf_generic_reloc, /* special_function */ 930 "R_C6000_SBR_L16_B", /* name */ 931 TRUE, /* partial_inplace */ 932 0x007fff80, /* src_mask */ 933 0x007fff80, /* dst_mask */ 934 FALSE), /* pcrel_offset */ 935 HOWTO (R_C6000_SBR_L16_H, /* type */ 936 1, /* rightshift */ 937 2, /* size (0 = byte, 1 = short, 2 = long) */ 938 16, /* bitsize */ 939 FALSE, /* pc_relative */ 940 7, /* bitpos */ 941 complain_overflow_dont,/* complain_on_overflow */ 942 bfd_elf_generic_reloc, /* special_function */ 943 "R_C6000_SBR_L16_H", /* name */ 944 TRUE, /* partial_inplace */ 945 0x007fff80, /* src_mask */ 946 0x007fff80, /* dst_mask */ 947 FALSE), /* pcrel_offset */ 948 HOWTO (R_C6000_SBR_L16_W, /* type */ 949 2, /* rightshift */ 950 2, /* size (0 = byte, 1 = short, 2 = long) */ 951 16, /* bitsize */ 952 FALSE, /* pc_relative */ 953 7, /* bitpos */ 954 complain_overflow_dont,/* complain_on_overflow */ 955 bfd_elf_generic_reloc, /* special_function */ 956 "R_C6000_SBR_L16_W", /* name */ 957 TRUE, /* partial_inplace */ 958 0x007fff80, /* src_mask */ 959 0x007fff80, /* dst_mask */ 960 FALSE), /* pcrel_offset */ 961 EMPTY_HOWTO (R_C6000_SBR_H16_B), 962 EMPTY_HOWTO (R_C6000_SBR_H16_H), 963 EMPTY_HOWTO (R_C6000_SBR_H16_W), 964 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ 965 2, /* rightshift */ 966 2, /* size (0 = byte, 1 = short, 2 = long) */ 967 15, /* bitsize */ 968 FALSE, /* pc_relative */ 969 8, /* bitpos */ 970 complain_overflow_unsigned,/* complain_on_overflow */ 971 bfd_elf_generic_reloc, /* special_function */ 972 "R_C6000_SBR_GOT_U15_W",/* name */ 973 TRUE, /* partial_inplace */ 974 0x007fff00, /* src_mask */ 975 0x007fff00, /* dst_mask */ 976 FALSE), /* pcrel_offset */ 977 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ 978 2, /* rightshift */ 979 2, /* size (0 = byte, 1 = short, 2 = long) */ 980 16, /* bitsize */ 981 FALSE, /* pc_relative */ 982 7, /* bitpos */ 983 complain_overflow_dont,/* complain_on_overflow */ 984 bfd_elf_generic_reloc, /* special_function */ 985 "R_C6000_SBR_GOT_L16_W",/* name */ 986 TRUE, /* partial_inplace */ 987 0x007fff80, /* src_mask */ 988 0x007fff80, /* dst_mask */ 989 FALSE), /* pcrel_offset */ 990 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W), 991 HOWTO (R_C6000_DSBT_INDEX, /* type */ 992 0, /* rightshift */ 993 2, /* size (0 = byte, 1 = short, 2 = long) */ 994 15, /* bitsize */ 995 FALSE, /* pc_relative */ 996 8, /* bitpos */ 997 complain_overflow_unsigned,/* complain_on_overflow */ 998 bfd_elf_generic_reloc, /* special_function */ 999 "R_C6000_DSBT_INDEX", /* name */ 1000 TRUE, /* partial_inplace */ 1001 0, /* src_mask */ 1002 0x007fff00, /* dst_mask */ 1003 FALSE), /* pcrel_offset */ 1004 HOWTO (R_C6000_PREL31, /* type */ 1005 1, /* rightshift */ 1006 2, /* size (0 = byte, 1 = short, 2 = long) */ 1007 31, /* bitsize */ 1008 FALSE, /* pc_relative */ 1009 0, /* bitpos */ 1010 complain_overflow_dont,/* complain_on_overflow */ 1011 bfd_elf_generic_reloc, /* special_function */ 1012 "R_C6000_PREL31", /* name */ 1013 TRUE, /* partial_inplace */ 1014 0, /* src_mask */ 1015 0x7fffffff, /* dst_mask */ 1016 FALSE), /* pcrel_offset */ 1017 HOWTO (R_C6000_COPY, /* type */ 1018 0, /* rightshift */ 1019 2, /* size (0 = byte, 1 = short, 2 = long) */ 1020 32, /* bitsize */ 1021 FALSE, /* pc_relative */ 1022 0, /* bitpos */ 1023 complain_overflow_dont,/* complain_on_overflow */ 1024 bfd_elf_generic_reloc, /* special_function */ 1025 "R_C6000_COPY", /* name */ 1026 TRUE, /* partial_inplace */ 1027 0, /* src_mask */ 1028 0xffffffff, /* dst_mask */ 1029 FALSE), /* pcrel_offset */ 1030 HOWTO (R_C6000_JUMP_SLOT, /* type */ 1031 0, /* rightshift */ 1032 2, /* size (0 = byte, 1 = short, 2 = long) */ 1033 32, /* bitsize */ 1034 FALSE, /* pc_relative */ 1035 0, /* bitpos */ 1036 complain_overflow_dont,/* complain_on_overflow */ 1037 bfd_elf_generic_reloc, /* special_function */ 1038 "R_C6000_JUMP_SLOT", /* name */ 1039 FALSE, /* partial_inplace */ 1040 0, /* src_mask */ 1041 0xffffffff, /* dst_mask */ 1042 FALSE), /* pcrel_offset */ 1043 EMPTY_HOWTO (28), 1044 EMPTY_HOWTO (29), 1045 EMPTY_HOWTO (30), 1046 EMPTY_HOWTO (31), 1047 EMPTY_HOWTO (32), 1048 EMPTY_HOWTO (33), 1049 EMPTY_HOWTO (34), 1050 EMPTY_HOWTO (35), 1051 EMPTY_HOWTO (36), 1052 EMPTY_HOWTO (37), 1053 EMPTY_HOWTO (38), 1054 EMPTY_HOWTO (39), 1055 EMPTY_HOWTO (40), 1056 EMPTY_HOWTO (41), 1057 EMPTY_HOWTO (42), 1058 EMPTY_HOWTO (43), 1059 EMPTY_HOWTO (44), 1060 EMPTY_HOWTO (45), 1061 EMPTY_HOWTO (46), 1062 EMPTY_HOWTO (47), 1063 EMPTY_HOWTO (48), 1064 EMPTY_HOWTO (49), 1065 EMPTY_HOWTO (50), 1066 EMPTY_HOWTO (51), 1067 EMPTY_HOWTO (52), 1068 EMPTY_HOWTO (53), 1069 EMPTY_HOWTO (54), 1070 EMPTY_HOWTO (55), 1071 EMPTY_HOWTO (56), 1072 EMPTY_HOWTO (57), 1073 EMPTY_HOWTO (58), 1074 EMPTY_HOWTO (59), 1075 EMPTY_HOWTO (60), 1076 EMPTY_HOWTO (61), 1077 EMPTY_HOWTO (62), 1078 EMPTY_HOWTO (63), 1079 EMPTY_HOWTO (64), 1080 EMPTY_HOWTO (65), 1081 EMPTY_HOWTO (66), 1082 EMPTY_HOWTO (67), 1083 EMPTY_HOWTO (68), 1084 EMPTY_HOWTO (69), 1085 EMPTY_HOWTO (70), 1086 EMPTY_HOWTO (71), 1087 EMPTY_HOWTO (72), 1088 EMPTY_HOWTO (73), 1089 EMPTY_HOWTO (74), 1090 EMPTY_HOWTO (75), 1091 EMPTY_HOWTO (76), 1092 EMPTY_HOWTO (77), 1093 EMPTY_HOWTO (78), 1094 EMPTY_HOWTO (79), 1095 EMPTY_HOWTO (80), 1096 EMPTY_HOWTO (81), 1097 EMPTY_HOWTO (82), 1098 EMPTY_HOWTO (83), 1099 EMPTY_HOWTO (84), 1100 EMPTY_HOWTO (85), 1101 EMPTY_HOWTO (86), 1102 EMPTY_HOWTO (87), 1103 EMPTY_HOWTO (88), 1104 EMPTY_HOWTO (89), 1105 EMPTY_HOWTO (90), 1106 EMPTY_HOWTO (91), 1107 EMPTY_HOWTO (92), 1108 EMPTY_HOWTO (93), 1109 EMPTY_HOWTO (94), 1110 EMPTY_HOWTO (95), 1111 EMPTY_HOWTO (96), 1112 EMPTY_HOWTO (97), 1113 EMPTY_HOWTO (98), 1114 EMPTY_HOWTO (99), 1115 EMPTY_HOWTO (100), 1116 EMPTY_HOWTO (101), 1117 EMPTY_HOWTO (102), 1118 EMPTY_HOWTO (103), 1119 EMPTY_HOWTO (104), 1120 EMPTY_HOWTO (105), 1121 EMPTY_HOWTO (106), 1122 EMPTY_HOWTO (107), 1123 EMPTY_HOWTO (108), 1124 EMPTY_HOWTO (109), 1125 EMPTY_HOWTO (110), 1126 EMPTY_HOWTO (111), 1127 EMPTY_HOWTO (112), 1128 EMPTY_HOWTO (113), 1129 EMPTY_HOWTO (114), 1130 EMPTY_HOWTO (115), 1131 EMPTY_HOWTO (116), 1132 EMPTY_HOWTO (117), 1133 EMPTY_HOWTO (118), 1134 EMPTY_HOWTO (119), 1135 EMPTY_HOWTO (120), 1136 EMPTY_HOWTO (121), 1137 EMPTY_HOWTO (122), 1138 EMPTY_HOWTO (123), 1139 EMPTY_HOWTO (124), 1140 EMPTY_HOWTO (125), 1141 EMPTY_HOWTO (126), 1142 EMPTY_HOWTO (127), 1143 EMPTY_HOWTO (128), 1144 EMPTY_HOWTO (129), 1145 EMPTY_HOWTO (130), 1146 EMPTY_HOWTO (131), 1147 EMPTY_HOWTO (132), 1148 EMPTY_HOWTO (133), 1149 EMPTY_HOWTO (134), 1150 EMPTY_HOWTO (135), 1151 EMPTY_HOWTO (136), 1152 EMPTY_HOWTO (137), 1153 EMPTY_HOWTO (138), 1154 EMPTY_HOWTO (139), 1155 EMPTY_HOWTO (140), 1156 EMPTY_HOWTO (141), 1157 EMPTY_HOWTO (142), 1158 EMPTY_HOWTO (143), 1159 EMPTY_HOWTO (144), 1160 EMPTY_HOWTO (145), 1161 EMPTY_HOWTO (146), 1162 EMPTY_HOWTO (147), 1163 EMPTY_HOWTO (148), 1164 EMPTY_HOWTO (149), 1165 EMPTY_HOWTO (150), 1166 EMPTY_HOWTO (151), 1167 EMPTY_HOWTO (152), 1168 EMPTY_HOWTO (153), 1169 EMPTY_HOWTO (154), 1170 EMPTY_HOWTO (155), 1171 EMPTY_HOWTO (156), 1172 EMPTY_HOWTO (157), 1173 EMPTY_HOWTO (158), 1174 EMPTY_HOWTO (159), 1175 EMPTY_HOWTO (160), 1176 EMPTY_HOWTO (161), 1177 EMPTY_HOWTO (162), 1178 EMPTY_HOWTO (163), 1179 EMPTY_HOWTO (164), 1180 EMPTY_HOWTO (165), 1181 EMPTY_HOWTO (166), 1182 EMPTY_HOWTO (167), 1183 EMPTY_HOWTO (168), 1184 EMPTY_HOWTO (169), 1185 EMPTY_HOWTO (170), 1186 EMPTY_HOWTO (171), 1187 EMPTY_HOWTO (172), 1188 EMPTY_HOWTO (173), 1189 EMPTY_HOWTO (174), 1190 EMPTY_HOWTO (175), 1191 EMPTY_HOWTO (176), 1192 EMPTY_HOWTO (177), 1193 EMPTY_HOWTO (178), 1194 EMPTY_HOWTO (179), 1195 EMPTY_HOWTO (180), 1196 EMPTY_HOWTO (181), 1197 EMPTY_HOWTO (182), 1198 EMPTY_HOWTO (183), 1199 EMPTY_HOWTO (184), 1200 EMPTY_HOWTO (185), 1201 EMPTY_HOWTO (186), 1202 EMPTY_HOWTO (187), 1203 EMPTY_HOWTO (188), 1204 EMPTY_HOWTO (189), 1205 EMPTY_HOWTO (190), 1206 EMPTY_HOWTO (191), 1207 EMPTY_HOWTO (192), 1208 EMPTY_HOWTO (193), 1209 EMPTY_HOWTO (194), 1210 EMPTY_HOWTO (195), 1211 EMPTY_HOWTO (196), 1212 EMPTY_HOWTO (197), 1213 EMPTY_HOWTO (198), 1214 EMPTY_HOWTO (199), 1215 EMPTY_HOWTO (200), 1216 EMPTY_HOWTO (201), 1217 EMPTY_HOWTO (202), 1218 EMPTY_HOWTO (203), 1219 EMPTY_HOWTO (204), 1220 EMPTY_HOWTO (205), 1221 EMPTY_HOWTO (206), 1222 EMPTY_HOWTO (207), 1223 EMPTY_HOWTO (208), 1224 EMPTY_HOWTO (209), 1225 EMPTY_HOWTO (210), 1226 EMPTY_HOWTO (211), 1227 EMPTY_HOWTO (212), 1228 EMPTY_HOWTO (213), 1229 EMPTY_HOWTO (214), 1230 EMPTY_HOWTO (215), 1231 EMPTY_HOWTO (216), 1232 EMPTY_HOWTO (217), 1233 EMPTY_HOWTO (218), 1234 EMPTY_HOWTO (219), 1235 EMPTY_HOWTO (220), 1236 EMPTY_HOWTO (221), 1237 EMPTY_HOWTO (222), 1238 EMPTY_HOWTO (223), 1239 EMPTY_HOWTO (224), 1240 EMPTY_HOWTO (225), 1241 EMPTY_HOWTO (226), 1242 EMPTY_HOWTO (227), 1243 EMPTY_HOWTO (228), 1244 EMPTY_HOWTO (229), 1245 EMPTY_HOWTO (230), 1246 EMPTY_HOWTO (231), 1247 EMPTY_HOWTO (232), 1248 EMPTY_HOWTO (233), 1249 EMPTY_HOWTO (234), 1250 EMPTY_HOWTO (235), 1251 EMPTY_HOWTO (236), 1252 EMPTY_HOWTO (237), 1253 EMPTY_HOWTO (238), 1254 EMPTY_HOWTO (239), 1255 EMPTY_HOWTO (240), 1256 EMPTY_HOWTO (241), 1257 EMPTY_HOWTO (242), 1258 EMPTY_HOWTO (243), 1259 EMPTY_HOWTO (244), 1260 EMPTY_HOWTO (245), 1261 EMPTY_HOWTO (246), 1262 EMPTY_HOWTO (247), 1263 EMPTY_HOWTO (248), 1264 EMPTY_HOWTO (249), 1265 EMPTY_HOWTO (250), 1266 EMPTY_HOWTO (251), 1267 EMPTY_HOWTO (252), 1268 HOWTO (R_C6000_ALIGN, /* type */ 1269 0, /* rightshift */ 1270 0, /* size (0 = byte, 1 = short, 2 = long) */ 1271 0, /* bitsize */ 1272 FALSE, /* pc_relative */ 1273 0, /* bitpos */ 1274 complain_overflow_dont,/* complain_on_overflow */ 1275 bfd_elf_generic_reloc, /* special_function */ 1276 "R_C6000_ALIGN", /* name */ 1277 TRUE, /* partial_inplace */ 1278 0, /* src_mask */ 1279 0, /* dst_mask */ 1280 FALSE), /* pcrel_offset */ 1281 HOWTO (R_C6000_FPHEAD, /* type */ 1282 0, /* rightshift */ 1283 0, /* size (0 = byte, 1 = short, 2 = long) */ 1284 0, /* bitsize */ 1285 FALSE, /* pc_relative */ 1286 0, /* bitpos */ 1287 complain_overflow_dont,/* complain_on_overflow */ 1288 bfd_elf_generic_reloc, /* special_function */ 1289 "R_C6000_FPHEAD", /* name */ 1290 TRUE, /* partial_inplace */ 1291 0, /* src_mask */ 1292 0, /* dst_mask */ 1293 FALSE), /* pcrel_offset */ 1294 HOWTO (R_C6000_NOCMP, /* type */ 1295 0, /* rightshift */ 1296 0, /* size (0 = byte, 1 = short, 2 = long) */ 1297 0, /* bitsize */ 1298 FALSE, /* pc_relative */ 1299 0, /* bitpos */ 1300 complain_overflow_dont,/* complain_on_overflow */ 1301 bfd_elf_generic_reloc, /* special_function */ 1302 "R_C6000_NOCMP", /* name */ 1303 TRUE, /* partial_inplace */ 1304 0, /* src_mask */ 1305 0, /* dst_mask */ 1306 FALSE) /* pcrel_offset */ 1307 }; 1308 1309 /* Map BFD relocations to ELF relocations. */ 1310 1311 typedef struct 1312 { 1313 bfd_reloc_code_real_type bfd_reloc_val; 1314 enum elf_tic6x_reloc_type elf_reloc_val; 1315 } tic6x_reloc_map; 1316 1317 static const tic6x_reloc_map elf32_tic6x_reloc_map[] = 1318 { 1319 { BFD_RELOC_NONE, R_C6000_NONE }, 1320 { BFD_RELOC_32, R_C6000_ABS32 }, 1321 { BFD_RELOC_16, R_C6000_ABS16 }, 1322 { BFD_RELOC_8, R_C6000_ABS8 }, 1323 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 }, 1324 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 }, 1325 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 }, 1326 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 }, 1327 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 }, 1328 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 }, 1329 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 }, 1330 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B }, 1331 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H }, 1332 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W }, 1333 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 }, 1334 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B }, 1335 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H }, 1336 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W }, 1337 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B }, 1338 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H }, 1339 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W }, 1340 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W }, 1341 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W }, 1342 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W }, 1343 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX }, 1344 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 }, 1345 { BFD_RELOC_C6000_COPY, R_C6000_COPY }, 1346 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT }, 1347 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE }, 1348 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 }, 1349 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 }, 1350 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN }, 1351 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD }, 1352 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP } 1353 }; 1354 1355 static reloc_howto_type * 1356 elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) 1357 { 1358 unsigned int i; 1359 1360 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++) 1361 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code) 1362 { 1363 enum elf_tic6x_reloc_type elf_reloc_val; 1364 reloc_howto_type *howto; 1365 1366 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val; 1367 if (elf32_tic6x_tdata (abfd)->use_rela_p) 1368 howto = &elf32_tic6x_howto_table[elf_reloc_val]; 1369 else 1370 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val]; 1371 1372 /* Some relocations are RELA-only; do not return them for 1373 REL. */ 1374 if (howto->name == NULL) 1375 howto = NULL; 1376 1377 return howto; 1378 } 1379 1380 return NULL; 1381 } 1382 1383 static reloc_howto_type * 1384 elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name) 1385 { 1386 if (elf32_tic6x_tdata (abfd)->use_rela_p) 1387 { 1388 unsigned int i; 1389 1390 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++) 1391 if (elf32_tic6x_howto_table[i].name != NULL 1392 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0) 1393 return &elf32_tic6x_howto_table[i]; 1394 } 1395 else 1396 { 1397 unsigned int i; 1398 1399 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++) 1400 if (elf32_tic6x_howto_table_rel[i].name != NULL 1401 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0) 1402 return &elf32_tic6x_howto_table_rel[i]; 1403 } 1404 1405 return NULL; 1406 } 1407 1408 static void 1409 elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, 1410 Elf_Internal_Rela *elf_reloc) 1411 { 1412 unsigned int r_type; 1413 1414 r_type = ELF32_R_TYPE (elf_reloc->r_info); 1415 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table)) 1416 bfd_reloc->howto = NULL; 1417 else 1418 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type]; 1419 } 1420 1421 static void 1422 elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, 1423 Elf_Internal_Rela *elf_reloc) 1424 { 1425 unsigned int r_type; 1426 1427 r_type = ELF32_R_TYPE (elf_reloc->r_info); 1428 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel)) 1429 bfd_reloc->howto = NULL; 1430 else 1431 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type]; 1432 } 1433 1434 void 1435 elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p) 1436 { 1437 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p; 1438 } 1439 1440 /* Create an entry in a C6X ELF linker hash table. */ 1441 1442 static struct bfd_hash_entry * 1443 elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry, 1444 struct bfd_hash_table *table, 1445 const char *string) 1446 { 1447 /* Allocate the structure if it has not already been allocated by a 1448 subclass. */ 1449 if (entry == NULL) 1450 { 1451 entry = bfd_hash_allocate (table, 1452 sizeof (struct elf32_tic6x_link_hash_entry)); 1453 if (entry == NULL) 1454 return entry; 1455 } 1456 1457 /* Call the allocation method of the superclass. */ 1458 entry = _bfd_elf_link_hash_newfunc (entry, table, string); 1459 if (entry != NULL) 1460 { 1461 struct elf32_tic6x_link_hash_entry *eh; 1462 1463 eh = (struct elf32_tic6x_link_hash_entry *) entry; 1464 eh->dyn_relocs = NULL; 1465 } 1466 1467 return entry; 1468 } 1469 1470 /* Create a C6X ELF linker hash table. */ 1471 1472 static struct bfd_link_hash_table * 1473 elf32_tic6x_link_hash_table_create (bfd *abfd) 1474 { 1475 struct elf32_tic6x_link_hash_table *ret; 1476 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table); 1477 1478 ret = bfd_malloc (amt); 1479 if (ret == NULL) 1480 return NULL; 1481 1482 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, 1483 elf32_tic6x_link_hash_newfunc, 1484 sizeof (struct elf32_tic6x_link_hash_entry), 1485 TIC6X_ELF_DATA)) 1486 { 1487 free (ret); 1488 return NULL; 1489 } 1490 1491 ret->sym_cache.abfd = NULL; 1492 ret->obfd = abfd; 1493 ret->elf.is_relocatable_executable = 1; 1494 1495 return &ret->elf.root; 1496 } 1497 1498 /* Destroy a C6X ELF linker hash table. */ 1499 1500 static void 1501 elf32_tic6x_link_hash_table_free (struct bfd_link_hash_table *hash) 1502 { 1503 _bfd_generic_link_hash_table_free (hash); 1504 } 1505 1506 /* Called to pass PARAMS to the backend. We store them in the hash table 1507 associated with INFO. */ 1508 1509 void 1510 elf32_tic6x_setup (struct bfd_link_info *info, 1511 struct elf32_tic6x_params *params) 1512 { 1513 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info); 1514 htab->params = *params; 1515 } 1516 1517 /* Determine if we're dealing with a DSBT object. */ 1518 1519 static bfd_boolean 1520 elf32_tic6x_using_dsbt (bfd *abfd) 1521 { 1522 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC, 1523 Tag_ABI_DSBT); 1524 } 1525 1526 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt 1527 sections in DYNOBJ, and set up shortcuts to them in our hash 1528 table. */ 1529 1530 static bfd_boolean 1531 elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) 1532 { 1533 struct elf32_tic6x_link_hash_table *htab; 1534 flagword flags; 1535 1536 htab = elf32_tic6x_hash_table (info); 1537 if (htab == NULL) 1538 return FALSE; 1539 1540 if (!_bfd_elf_create_dynamic_sections (dynobj, info)) 1541 return FALSE; 1542 1543 /* Create .dsbt */ 1544 flags = (SEC_ALLOC | SEC_LOAD 1545 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); 1546 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt", 1547 flags); 1548 if (htab->dsbt == NULL 1549 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2) 1550 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5)) 1551 return FALSE; 1552 1553 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); 1554 if (!info->shared) 1555 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); 1556 1557 if (!htab->sdynbss 1558 || (!info->shared && !htab->srelbss)) 1559 abort (); 1560 1561 return TRUE; 1562 } 1563 1564 static bfd_boolean 1565 elf32_tic6x_mkobject (bfd *abfd) 1566 { 1567 bfd_boolean ret; 1568 1569 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata), 1570 TIC6X_ELF_DATA); 1571 if (ret) 1572 elf32_tic6x_set_use_rela_p (abfd, TRUE); 1573 return ret; 1574 } 1575 1576 /* Install relocation RELA into section SRELA, incrementing its 1577 reloc_count. */ 1578 1579 static void 1580 elf32_tic6x_install_rela (bfd *output_bfd, asection *srela, 1581 Elf_Internal_Rela *rela) 1582 { 1583 bfd_byte *loc; 1584 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela); 1585 loc = srela->contents + off; 1586 BFD_ASSERT (off < srela->size); 1587 bfd_elf32_swap_reloca_out (output_bfd, rela, loc); 1588 } 1589 1590 /* Create a dynamic reloc against the GOT at offset OFFSET. The contents 1591 of the GOT at this offset have been initialized with the relocation. */ 1592 1593 static void 1594 elf32_tic6x_make_got_dynreloc (bfd *output_bfd, 1595 struct elf32_tic6x_link_hash_table *htab, 1596 asection *sym_sec, bfd_vma offset) 1597 { 1598 asection *sgot = htab->elf.sgot; 1599 Elf_Internal_Rela outrel; 1600 int dynindx; 1601 1602 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset; 1603 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset); 1604 if (sym_sec && sym_sec->output_section 1605 && ! bfd_is_abs_section (sym_sec->output_section) 1606 && ! bfd_is_und_section (sym_sec->output_section)) 1607 { 1608 dynindx = elf_section_data (sym_sec->output_section)->dynindx; 1609 outrel.r_addend -= sym_sec->output_section->vma; 1610 } 1611 else 1612 { 1613 dynindx = 0; 1614 } 1615 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32); 1616 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel); 1617 } 1618 1619 /* Finish up dynamic symbol handling. We set the contents of various 1620 dynamic sections here. */ 1621 1622 static bfd_boolean 1623 elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd, 1624 struct bfd_link_info *info, 1625 struct elf_link_hash_entry *h, 1626 Elf_Internal_Sym * sym) 1627 { 1628 bfd *dynobj; 1629 struct elf32_tic6x_link_hash_table *htab; 1630 1631 htab = elf32_tic6x_hash_table (info); 1632 dynobj = htab->elf.dynobj; 1633 1634 if (h->plt.offset != (bfd_vma) -1) 1635 { 1636 bfd_vma plt_index; 1637 bfd_vma got_section_offset, got_dp_offset, rela_offset; 1638 Elf_Internal_Rela rela; 1639 bfd_byte *loc; 1640 asection *plt, *gotplt, *relplt; 1641 const struct elf_backend_data *bed; 1642 1643 bed = get_elf_backend_data (output_bfd); 1644 1645 BFD_ASSERT (htab->elf.splt != NULL); 1646 plt = htab->elf.splt; 1647 gotplt = htab->elf.sgotplt; 1648 relplt = htab->elf.srelplt; 1649 1650 /* This symbol has an entry in the procedure linkage table. Set 1651 it up. */ 1652 1653 if ((h->dynindx == -1 1654 && !((h->forced_local || info->executable) 1655 && h->def_regular 1656 && h->type == STT_GNU_IFUNC)) 1657 || plt == NULL 1658 || gotplt == NULL 1659 || relplt == NULL) 1660 abort (); 1661 1662 /* Get the index in the procedure linkage table which 1663 corresponds to this symbol. This is the index of this symbol 1664 in all the symbols for which we are making plt entries. The 1665 first entry in the procedure linkage table is reserved. 1666 1667 Get the offset into the .got table of the entry that 1668 corresponds to this function. Each .got entry is 4 bytes. 1669 The first three are reserved. 1670 1671 For static executables, we don't reserve anything. */ 1672 1673 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; 1674 got_section_offset = plt_index + bed->got_header_size / 4; 1675 got_dp_offset = got_section_offset + htab->params.dsbt_size; 1676 rela_offset = plt_index * sizeof (Elf32_External_Rela); 1677 1678 got_section_offset *= 4; 1679 1680 /* Fill in the entry in the procedure linkage table. */ 1681 1682 /* ldw .d2t2 *+B14($GOT(f)), b2 */ 1683 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e, 1684 plt->contents + h->plt.offset); 1685 /* mvk .s2 low(rela_offset), b0 */ 1686 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a, 1687 plt->contents + h->plt.offset + 4); 1688 /* mvkh .s2 high(rela_offset), b0 */ 1689 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a, 1690 plt->contents + h->plt.offset + 8); 1691 /* nop 2 */ 1692 bfd_put_32 (output_bfd, 0x00002000, 1693 plt->contents + h->plt.offset + 12); 1694 /* b .s2 b2 */ 1695 bfd_put_32 (output_bfd, 0x00080362, 1696 plt->contents + h->plt.offset + 16); 1697 /* nop 5 */ 1698 bfd_put_32 (output_bfd, 0x00008000, 1699 plt->contents + h->plt.offset + 20); 1700 1701 /* Fill in the entry in the global offset table. */ 1702 bfd_put_32 (output_bfd, 1703 (plt->output_section->vma + plt->output_offset), 1704 gotplt->contents + got_section_offset); 1705 1706 /* Fill in the entry in the .rel.plt section. */ 1707 rela.r_offset = (gotplt->output_section->vma 1708 + gotplt->output_offset 1709 + got_section_offset); 1710 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT); 1711 rela.r_addend = 0; 1712 loc = relplt->contents + rela_offset; 1713 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); 1714 1715 if (!h->def_regular) 1716 { 1717 /* Mark the symbol as undefined, rather than as defined in 1718 the .plt section. */ 1719 sym->st_shndx = SHN_UNDEF; 1720 sym->st_value = 0; 1721 } 1722 } 1723 1724 if (h->got.offset != (bfd_vma) -1) 1725 { 1726 asection *sgot; 1727 asection *srela; 1728 1729 /* This symbol has an entry in the global offset table. 1730 Set it up. */ 1731 1732 sgot = bfd_get_section_by_name (dynobj, ".got"); 1733 srela = bfd_get_section_by_name (dynobj, ".rela.got"); 1734 BFD_ASSERT (sgot != NULL && srela != NULL); 1735 1736 /* If this is a -Bsymbolic link, and the symbol is defined 1737 locally, we just want to emit a RELATIVE reloc. Likewise if 1738 the symbol was forced to be local because of a version file. 1739 The entry in the global offset table will already have been 1740 initialized in the relocate_section function. */ 1741 if (info->shared 1742 && (info->symbolic 1743 || h->dynindx == -1 || h->forced_local) && h->def_regular) 1744 { 1745 asection *s = h->root.u.def.section; 1746 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s, 1747 h->got.offset & ~(bfd_vma) 1); 1748 } 1749 else 1750 { 1751 Elf_Internal_Rela outrel; 1752 bfd_put_32 (output_bfd, (bfd_vma) 0, 1753 sgot->contents + (h->got.offset & ~(bfd_vma) 1)); 1754 outrel.r_offset = (sgot->output_section->vma 1755 + sgot->output_offset 1756 + (h->got.offset & ~(bfd_vma) 1)); 1757 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32); 1758 outrel.r_addend = 0; 1759 1760 elf32_tic6x_install_rela (output_bfd, srela, &outrel); 1761 } 1762 } 1763 1764 if (h->needs_copy) 1765 { 1766 Elf_Internal_Rela rel; 1767 1768 /* This symbol needs a copy reloc. Set it up. */ 1769 1770 if (h->dynindx == -1 1771 || (h->root.type != bfd_link_hash_defined 1772 && h->root.type != bfd_link_hash_defweak) 1773 || htab->srelbss == NULL) 1774 abort (); 1775 1776 rel.r_offset = (h->root.u.def.value 1777 + h->root.u.def.section->output_section->vma 1778 + h->root.u.def.section->output_offset); 1779 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY); 1780 rel.r_addend = 0; 1781 1782 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel); 1783 } 1784 1785 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ 1786 if (strcmp (h->root.root.string, "_DYNAMIC") == 0 1787 || h == elf_hash_table (info)->hgot) 1788 sym->st_shndx = SHN_ABS; 1789 1790 return TRUE; 1791 } 1792 1793 /* Update the got entry reference counts for the section being removed. */ 1794 1795 static bfd_boolean 1796 elf32_tic6x_gc_sweep_hook (bfd *abfd, 1797 struct bfd_link_info *info, 1798 asection *sec, 1799 const Elf_Internal_Rela *relocs) 1800 { 1801 struct elf32_tic6x_link_hash_table *htab; 1802 Elf_Internal_Shdr *symtab_hdr; 1803 struct elf_link_hash_entry **sym_hashes; 1804 bfd_signed_vma *local_got_refcounts; 1805 const Elf_Internal_Rela *rel, *relend; 1806 1807 if (info->relocatable) 1808 return TRUE; 1809 1810 htab = elf32_tic6x_hash_table (info); 1811 if (htab == NULL) 1812 return FALSE; 1813 1814 elf_section_data (sec)->local_dynrel = NULL; 1815 1816 symtab_hdr = &elf_symtab_hdr (abfd); 1817 sym_hashes = elf_sym_hashes (abfd); 1818 local_got_refcounts = elf_local_got_refcounts (abfd); 1819 1820 relend = relocs + sec->reloc_count; 1821 for (rel = relocs; rel < relend; rel++) 1822 { 1823 unsigned long r_symndx; 1824 unsigned int r_type; 1825 struct elf_link_hash_entry *h = NULL; 1826 1827 r_symndx = ELF32_R_SYM (rel->r_info); 1828 if (r_symndx >= symtab_hdr->sh_info) 1829 { 1830 struct elf32_tic6x_link_hash_entry *eh; 1831 struct elf_dyn_relocs **pp; 1832 struct elf_dyn_relocs *p; 1833 1834 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 1835 while (h->root.type == bfd_link_hash_indirect 1836 || h->root.type == bfd_link_hash_warning) 1837 h = (struct elf_link_hash_entry *) h->root.u.i.link; 1838 eh = (struct elf32_tic6x_link_hash_entry *) h; 1839 1840 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) 1841 if (p->sec == sec) 1842 { 1843 /* Everything must go for SEC. */ 1844 *pp = p->next; 1845 break; 1846 } 1847 } 1848 1849 r_type = ELF32_R_TYPE (rel->r_info); 1850 1851 switch (r_type) 1852 { 1853 case R_C6000_SBR_GOT_U15_W: 1854 case R_C6000_SBR_GOT_L16_W: 1855 case R_C6000_SBR_GOT_H16_W: 1856 if (h != NULL) 1857 { 1858 if (h->got.refcount > 0) 1859 h->got.refcount -= 1; 1860 } 1861 else if (local_got_refcounts != NULL) 1862 { 1863 if (local_got_refcounts[r_symndx] > 0) 1864 local_got_refcounts[r_symndx] -= 1; 1865 } 1866 break; 1867 1868 default: 1869 break; 1870 } 1871 } 1872 1873 return TRUE; 1874 } 1875 1876 /* Adjust a symbol defined by a dynamic object and referenced by a 1877 regular object. The current definition is in some section of the 1878 dynamic object, but we're not including those sections. We have to 1879 change the definition to something the rest of the link can 1880 understand. */ 1881 1882 static bfd_boolean 1883 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info, 1884 struct elf_link_hash_entry *h) 1885 { 1886 struct elf32_tic6x_link_hash_table *htab; 1887 bfd *dynobj; 1888 asection *s; 1889 1890 dynobj = elf_hash_table (info)->dynobj; 1891 1892 /* Make sure we know what is going on here. */ 1893 BFD_ASSERT (dynobj != NULL 1894 && (h->needs_plt 1895 || h->u.weakdef != NULL 1896 || (h->def_dynamic && h->ref_regular && !h->def_regular))); 1897 1898 /* If this is a function, put it in the procedure linkage table. We 1899 will fill in the contents of the procedure linkage table later, 1900 when we know the address of the .got section. */ 1901 if (h->type == STT_FUNC 1902 || h->needs_plt) 1903 { 1904 if (h->plt.refcount <= 0 1905 || SYMBOL_CALLS_LOCAL (info, h) 1906 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT 1907 && h->root.type == bfd_link_hash_undefweak)) 1908 { 1909 /* This case can occur if we saw a PLT32 reloc in an input 1910 file, but the symbol was never referred to by a dynamic 1911 object, or if all references were garbage collected. In 1912 such a case, we don't actually need to build a procedure 1913 linkage table, and we can just do a PC32 reloc instead. */ 1914 h->plt.offset = (bfd_vma) -1; 1915 h->needs_plt = 0; 1916 } 1917 1918 return TRUE; 1919 } 1920 1921 /* If this is a weak symbol, and there is a real definition, the 1922 processor independent code will have arranged for us to see the 1923 real definition first, and we can just use the same value. */ 1924 if (h->u.weakdef != NULL) 1925 { 1926 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined 1927 || h->u.weakdef->root.type == bfd_link_hash_defweak); 1928 h->root.u.def.section = h->u.weakdef->root.u.def.section; 1929 h->root.u.def.value = h->u.weakdef->root.u.def.value; 1930 h->non_got_ref = h->u.weakdef->non_got_ref; 1931 return TRUE; 1932 } 1933 1934 /* This is a reference to a symbol defined by a dynamic object which 1935 is not a function. */ 1936 1937 /* If we are creating a shared library, we must presume that the 1938 only references to the symbol are via the global offset table. 1939 For such cases we need not do anything here; the relocations will 1940 be handled correctly by relocate_section. */ 1941 if (info->shared) 1942 return TRUE; 1943 1944 /* If there are no references to this symbol that do not use the 1945 GOT, we don't need to generate a copy reloc. */ 1946 if (!h->non_got_ref) 1947 return TRUE; 1948 1949 /* If -z nocopyreloc was given, we won't generate them either. */ 1950 if (info->nocopyreloc) 1951 { 1952 h->non_got_ref = 0; 1953 return TRUE; 1954 } 1955 1956 htab = elf32_tic6x_hash_table (info); 1957 if (htab == NULL) 1958 return FALSE; 1959 1960 if (h->size == 0) 1961 { 1962 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), 1963 h->root.root.string); 1964 return TRUE; 1965 } 1966 1967 /* We must allocate the symbol in our .dynbss section, which will 1968 become part of the .bss section of the executable. There will be 1969 an entry for this symbol in the .dynsym section. The dynamic 1970 object will contain position independent code, so all references 1971 from the dynamic object to this symbol will go through the global 1972 offset table. The dynamic linker will use the .dynsym entry to 1973 determine the address it must put in the global offset table, so 1974 both the dynamic object and the regular object will refer to the 1975 same memory location for the variable. */ 1976 1977 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to 1978 copy the initial value out of the dynamic object and into the 1979 runtime process image. */ 1980 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) 1981 { 1982 htab->srelbss->size += sizeof (Elf32_External_Rela); 1983 h->needs_copy = 1; 1984 } 1985 1986 s = htab->sdynbss; 1987 1988 return _bfd_elf_adjust_dynamic_copy (h, s); 1989 } 1990 1991 static bfd_boolean 1992 elf32_tic6x_new_section_hook (bfd *abfd, asection *sec) 1993 { 1994 bfd_boolean ret; 1995 1996 ret = _bfd_elf_new_section_hook (abfd, sec); 1997 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p; 1998 1999 return ret; 2000 } 2001 2002 /* Return true if relocation REL against section SEC is a REL rather 2003 than RELA relocation. RELOCS is the first relocation in the 2004 section and ABFD is the bfd that contains SEC. */ 2005 2006 static bfd_boolean 2007 elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec, 2008 const Elf_Internal_Rela *relocs, 2009 const Elf_Internal_Rela *rel) 2010 { 2011 Elf_Internal_Shdr *rel_hdr; 2012 const struct elf_backend_data *bed; 2013 2014 /* To determine which flavor of relocation this is, we depend on the 2015 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */ 2016 rel_hdr = elf_section_data (sec)->rel.hdr; 2017 if (rel_hdr == NULL) 2018 return FALSE; 2019 bed = get_elf_backend_data (abfd); 2020 return ((size_t) (rel - relocs) 2021 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel); 2022 } 2023 2024 /* We need dynamic symbols for every section, since segments can 2025 relocate independently. */ 2026 static bfd_boolean 2027 elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED, 2028 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2029 asection *p) 2030 { 2031 switch (elf_section_data (p)->this_hdr.sh_type) 2032 { 2033 case SHT_PROGBITS: 2034 case SHT_NOBITS: 2035 /* If sh_type is yet undecided, assume it could be 2036 SHT_PROGBITS/SHT_NOBITS. */ 2037 case SHT_NULL: 2038 return FALSE; 2039 2040 /* There shouldn't be section relative relocations 2041 against any other section. */ 2042 default: 2043 return TRUE; 2044 } 2045 } 2046 2047 static bfd_boolean 2048 elf32_tic6x_relocate_section (bfd *output_bfd, 2049 struct bfd_link_info *info, 2050 bfd *input_bfd, 2051 asection *input_section, 2052 bfd_byte *contents, 2053 Elf_Internal_Rela *relocs, 2054 Elf_Internal_Sym *local_syms, 2055 asection **local_sections) 2056 { 2057 struct elf32_tic6x_link_hash_table *htab; 2058 Elf_Internal_Shdr *symtab_hdr; 2059 struct elf_link_hash_entry **sym_hashes; 2060 bfd_vma *local_got_offsets; 2061 Elf_Internal_Rela *rel; 2062 Elf_Internal_Rela *relend; 2063 bfd_boolean ok = TRUE; 2064 2065 htab = elf32_tic6x_hash_table (info); 2066 symtab_hdr = & elf_symtab_hdr (input_bfd); 2067 sym_hashes = elf_sym_hashes (input_bfd); 2068 local_got_offsets = elf_local_got_offsets (input_bfd); 2069 2070 relend = relocs + input_section->reloc_count; 2071 2072 for (rel = relocs; rel < relend; rel ++) 2073 { 2074 int r_type; 2075 unsigned long r_symndx; 2076 arelent bfd_reloc; 2077 reloc_howto_type *howto; 2078 Elf_Internal_Sym *sym; 2079 asection *sec; 2080 struct elf_link_hash_entry *h; 2081 bfd_vma off, relocation; 2082 bfd_boolean unresolved_reloc; 2083 bfd_reloc_status_type r; 2084 struct bfd_link_hash_entry *sbh; 2085 bfd_boolean is_rel; 2086 2087 r_type = ELF32_R_TYPE (rel->r_info); 2088 r_symndx = ELF32_R_SYM (rel->r_info); 2089 2090 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section, 2091 relocs, rel); 2092 2093 if (is_rel) 2094 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel); 2095 else 2096 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel); 2097 howto = bfd_reloc.howto; 2098 if (howto == NULL) 2099 { 2100 bfd_set_error (bfd_error_bad_value); 2101 return FALSE; 2102 } 2103 2104 h = NULL; 2105 sym = NULL; 2106 sec = NULL; 2107 unresolved_reloc = FALSE; 2108 2109 if (r_symndx < symtab_hdr->sh_info) 2110 { 2111 sym = local_syms + r_symndx; 2112 sec = local_sections[r_symndx]; 2113 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); 2114 } 2115 else 2116 { 2117 bfd_boolean warned; 2118 2119 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, 2120 r_symndx, symtab_hdr, sym_hashes, 2121 h, sec, relocation, 2122 unresolved_reloc, warned); 2123 } 2124 2125 if (sec != NULL && elf_discarded_section (sec)) 2126 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, 2127 rel, relend, howto, contents); 2128 2129 if (info->relocatable) 2130 { 2131 if (is_rel 2132 && sym != NULL 2133 && ELF_ST_TYPE (sym->st_info) == STT_SECTION) 2134 { 2135 rel->r_addend = 0; 2136 relocation = sec->output_offset + sym->st_value; 2137 r = _bfd_relocate_contents (howto, input_bfd, relocation, 2138 contents + rel->r_offset); 2139 goto done_reloc; 2140 } 2141 continue; 2142 } 2143 2144 switch (r_type) 2145 { 2146 case R_C6000_NONE: 2147 case R_C6000_ALIGN: 2148 case R_C6000_FPHEAD: 2149 case R_C6000_NOCMP: 2150 /* No action needed. */ 2151 continue; 2152 2153 case R_C6000_PCR_S21: 2154 /* A branch to an undefined weak symbol is turned into a 2155 "b .s2 B3" instruction if the existing insn is of the 2156 form "b .s2 symbol". */ 2157 if (h ? h->root.type == bfd_link_hash_undefweak 2158 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1) 2159 : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) 2160 { 2161 unsigned long oldval; 2162 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset); 2163 2164 if ((oldval & 0x7e) == 0x12) 2165 { 2166 oldval &= 0xF0000001; 2167 bfd_put_32 (input_bfd, oldval | 0x000c0362, 2168 contents + rel->r_offset); 2169 r = bfd_reloc_ok; 2170 goto done_reloc; 2171 } 2172 } 2173 2174 case R_C6000_PCR_S12: 2175 case R_C6000_PCR_S10: 2176 case R_C6000_PCR_S7: 2177 if (h != NULL 2178 && h->plt.offset != (bfd_vma) -1 2179 && htab->elf.splt != NULL) 2180 { 2181 relocation = (htab->elf.splt->output_section->vma 2182 + htab->elf.splt->output_offset 2183 + h->plt.offset); 2184 } 2185 2186 /* Generic PC-relative handling produces a value relative to 2187 the exact location of the relocation. Adjust it to be 2188 relative to the start of the fetch packet instead. */ 2189 relocation += (input_section->output_section->vma 2190 + input_section->output_offset 2191 + rel->r_offset) & 0x1f; 2192 unresolved_reloc = FALSE; 2193 break; 2194 2195 case R_C6000_DSBT_INDEX: 2196 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index; 2197 if (!info->shared || relocation != 0) 2198 break; 2199 2200 /* fall through */ 2201 case R_C6000_ABS32: 2202 case R_C6000_ABS16: 2203 case R_C6000_ABS8: 2204 case R_C6000_ABS_S16: 2205 case R_C6000_ABS_L16: 2206 case R_C6000_ABS_H16: 2207 /* When generating a shared object or relocatable executable, these 2208 relocations are copied into the output file to be resolved at 2209 run time. */ 2210 if ((info->shared || elf32_tic6x_using_dsbt (output_bfd)) 2211 && (input_section->flags & SEC_ALLOC) 2212 && (h == NULL 2213 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT 2214 || h->root.type != bfd_link_hash_undefweak)) 2215 { 2216 Elf_Internal_Rela outrel; 2217 bfd_boolean skip, relocate; 2218 asection *sreloc; 2219 2220 unresolved_reloc = FALSE; 2221 2222 sreloc = elf_section_data (input_section)->sreloc; 2223 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL); 2224 2225 skip = FALSE; 2226 relocate = FALSE; 2227 2228 outrel.r_offset = 2229 _bfd_elf_section_offset (output_bfd, info, input_section, 2230 rel->r_offset); 2231 if (outrel.r_offset == (bfd_vma) -1) 2232 skip = TRUE; 2233 else if (outrel.r_offset == (bfd_vma) -2) 2234 skip = TRUE, relocate = TRUE; 2235 outrel.r_offset += (input_section->output_section->vma 2236 + input_section->output_offset); 2237 2238 if (skip) 2239 memset (&outrel, 0, sizeof outrel); 2240 else if (h != NULL 2241 && h->dynindx != -1 2242 && (!info->shared 2243 || !info->symbolic 2244 || !h->def_regular)) 2245 { 2246 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); 2247 outrel.r_addend = rel->r_addend; 2248 } 2249 else 2250 { 2251 long indx; 2252 2253 outrel.r_addend = relocation + rel->r_addend; 2254 2255 if (bfd_is_abs_section (sec)) 2256 indx = 0; 2257 else if (sec == NULL || sec->owner == NULL) 2258 { 2259 bfd_set_error (bfd_error_bad_value); 2260 return FALSE; 2261 } 2262 else 2263 { 2264 asection *osec; 2265 2266 osec = sec->output_section; 2267 indx = elf_section_data (osec)->dynindx; 2268 outrel.r_addend -= osec->vma; 2269 BFD_ASSERT (indx != 0); 2270 } 2271 2272 outrel.r_info = ELF32_R_INFO (indx, r_type); 2273 } 2274 2275 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel); 2276 2277 /* If this reloc is against an external symbol, we do not want to 2278 fiddle with the addend. Otherwise, we need to include the symbol 2279 value so that it becomes an addend for the dynamic reloc. */ 2280 if (! relocate) 2281 continue; 2282 } 2283 2284 /* Generic logic OK. */ 2285 break; 2286 2287 case R_C6000_SBR_U15_B: 2288 case R_C6000_SBR_U15_H: 2289 case R_C6000_SBR_U15_W: 2290 case R_C6000_SBR_S16: 2291 case R_C6000_SBR_L16_B: 2292 case R_C6000_SBR_L16_H: 2293 case R_C6000_SBR_L16_W: 2294 case R_C6000_SBR_H16_B: 2295 case R_C6000_SBR_H16_H: 2296 case R_C6000_SBR_H16_W: 2297 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE", 2298 FALSE, FALSE, TRUE); 2299 if (sbh != NULL 2300 && (sbh->type == bfd_link_hash_defined 2301 || sbh->type == bfd_link_hash_defweak)) 2302 { 2303 if (h ? (h->root.type == bfd_link_hash_undefweak 2304 && (htab->elf.splt == NULL 2305 || h->plt.offset == (bfd_vma) -1)) 2306 : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) 2307 relocation = 0; 2308 else 2309 relocation -= (sbh->u.def.value 2310 + sbh->u.def.section->output_section->vma 2311 + sbh->u.def.section->output_offset); 2312 } 2313 else 2314 { 2315 (*_bfd_error_handler) (_("%B: SB-relative relocation but " 2316 "__c6xabi_DSBT_BASE not defined"), 2317 input_bfd); 2318 ok = FALSE; 2319 continue; 2320 } 2321 break; 2322 2323 case R_C6000_SBR_GOT_U15_W: 2324 case R_C6000_SBR_GOT_L16_W: 2325 case R_C6000_SBR_GOT_H16_W: 2326 /* Relocation is to the entry for this symbol in the global 2327 offset table. */ 2328 if (htab->elf.sgot == NULL) 2329 abort (); 2330 2331 if (h != NULL) 2332 { 2333 bfd_boolean dyn; 2334 2335 off = h->got.offset; 2336 dyn = htab->elf.dynamic_sections_created; 2337 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) 2338 || (info->shared 2339 && SYMBOL_REFERENCES_LOCAL (info, h)) 2340 || (ELF_ST_VISIBILITY (h->other) 2341 && h->root.type == bfd_link_hash_undefweak)) 2342 { 2343 /* This is actually a static link, or it is a 2344 -Bsymbolic link and the symbol is defined 2345 locally, or the symbol was forced to be local 2346 because of a version file. We must initialize 2347 this entry in the global offset table. Since the 2348 offset must always be a multiple of 4, we use the 2349 least significant bit to record whether we have 2350 initialized it already. 2351 2352 When doing a dynamic link, we create a .rel.got 2353 relocation entry to initialize the value. This 2354 is done in the finish_dynamic_symbol routine. */ 2355 if ((off & 1) != 0) 2356 off &= ~1; 2357 else 2358 { 2359 bfd_put_32 (output_bfd, relocation, 2360 htab->elf.sgot->contents + off); 2361 h->got.offset |= 1; 2362 2363 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, 2364 h) 2365 && !(ELF_ST_VISIBILITY (h->other) 2366 && h->root.type == bfd_link_hash_undefweak)) 2367 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, 2368 off); 2369 } 2370 } 2371 else 2372 unresolved_reloc = FALSE; 2373 } 2374 else 2375 { 2376 if (local_got_offsets == NULL) 2377 abort (); 2378 2379 off = local_got_offsets[r_symndx]; 2380 2381 /* The offset must always be a multiple of 4. We use 2382 the least significant bit to record whether we have 2383 already generated the necessary reloc. */ 2384 if ((off & 1) != 0) 2385 off &= ~1; 2386 else 2387 { 2388 bfd_put_32 (output_bfd, relocation, 2389 htab->elf.sgot->contents + off); 2390 2391 if (info->shared || elf32_tic6x_using_dsbt (output_bfd)) 2392 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off); 2393 2394 local_got_offsets[r_symndx] |= 1; 2395 } 2396 } 2397 2398 if (off >= (bfd_vma) -2) 2399 abort (); 2400 2401 if (htab->dsbt) 2402 relocation = (htab->elf.sgot->output_section->vma 2403 + htab->elf.sgot->output_offset + off 2404 - htab->dsbt->output_section->vma 2405 - htab->dsbt->output_offset); 2406 else 2407 relocation = (htab->elf.sgot->output_section->vma 2408 + htab->elf.sgot->output_offset + off 2409 - htab->elf.sgotplt->output_section->vma 2410 - htab->elf.sgotplt->output_offset); 2411 2412 if (rel->r_addend != 0) 2413 { 2414 /* We can't do anything for a relocation which is against 2415 a symbol *plus offset*. GOT holds relocations for 2416 symbols. Make this an error; the compiler isn't 2417 allowed to pass us these kinds of things. */ 2418 if (h == NULL) 2419 (*_bfd_error_handler) 2420 (_("%B, section %A: relocation %s with non-zero addend %d" 2421 " against local symbol"), 2422 input_bfd, 2423 input_section, 2424 elf32_tic6x_howto_table[r_type].name, 2425 rel->r_addend); 2426 else 2427 (*_bfd_error_handler) 2428 (_("%B, section %A: relocation %s with non-zero addend %d" 2429 " against symbol `%s'"), 2430 input_bfd, 2431 input_section, 2432 elf32_tic6x_howto_table[r_type].name, 2433 rel->r_addend, 2434 h->root.root.string[0] != '\0' ? h->root.root.string 2435 : _("[whose name is lost]")); 2436 2437 bfd_set_error (bfd_error_bad_value); 2438 return FALSE; 2439 } 2440 break; 2441 2442 case R_C6000_PREL31: 2443 /* Shared libraries and exception handling support not 2444 implemented. */ 2445 (*_bfd_error_handler) (_("%B: relocation type %d not implemented"), 2446 input_bfd, r_type); 2447 ok = FALSE; 2448 continue; 2449 2450 case R_C6000_COPY: 2451 /* Invalid in relocatable object. */ 2452 default: 2453 /* Unknown relocation. */ 2454 (*_bfd_error_handler) (_("%B: invalid relocation type %d"), 2455 input_bfd, r_type); 2456 ok = FALSE; 2457 continue; 2458 } 2459 2460 r = _bfd_final_link_relocate (howto, input_bfd, input_section, 2461 contents, rel->r_offset, 2462 relocation, rel->r_addend); 2463 2464 done_reloc: 2465 if (r == bfd_reloc_ok 2466 && howto->complain_on_overflow == complain_overflow_bitfield) 2467 { 2468 /* Generic overflow handling accepts cases the ABI says 2469 should be rejected for R_C6000_ABS16 and 2470 R_C6000_ABS8. */ 2471 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff; 2472 bfd_vma sbit = 1 << (howto->bitsize - 1); 2473 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff; 2474 bfd_vma value_sbits = value & sbits; 2475 2476 if (value_sbits != 0 2477 && value_sbits != sbit 2478 && value_sbits != sbits) 2479 r = bfd_reloc_overflow; 2480 } 2481 2482 if (r != bfd_reloc_ok) 2483 { 2484 const char *name; 2485 const char *error_message; 2486 2487 if (h != NULL) 2488 name = h->root.root.string; 2489 else 2490 { 2491 name = bfd_elf_string_from_elf_section (input_bfd, 2492 symtab_hdr->sh_link, 2493 sym->st_name); 2494 if (name == NULL) 2495 return FALSE; 2496 if (*name == '\0') 2497 name = bfd_section_name (input_bfd, sec); 2498 } 2499 2500 switch (r) 2501 { 2502 case bfd_reloc_overflow: 2503 /* If the overflowing reloc was to an undefined symbol, 2504 we have already printed one error message and there 2505 is no point complaining again. */ 2506 if ((! h || 2507 h->root.type != bfd_link_hash_undefined) 2508 && (!((*info->callbacks->reloc_overflow) 2509 (info, (h ? &h->root : NULL), name, howto->name, 2510 (bfd_vma) 0, input_bfd, input_section, 2511 rel->r_offset)))) 2512 return FALSE; 2513 break; 2514 2515 case bfd_reloc_undefined: 2516 if (!((*info->callbacks->undefined_symbol) 2517 (info, name, input_bfd, input_section, 2518 rel->r_offset, TRUE))) 2519 return FALSE; 2520 break; 2521 2522 case bfd_reloc_outofrange: 2523 error_message = _("out of range"); 2524 goto common_error; 2525 2526 case bfd_reloc_notsupported: 2527 error_message = _("unsupported relocation"); 2528 goto common_error; 2529 2530 case bfd_reloc_dangerous: 2531 error_message = _("dangerous relocation"); 2532 goto common_error; 2533 2534 default: 2535 error_message = _("unknown error"); 2536 /* Fall through. */ 2537 2538 common_error: 2539 BFD_ASSERT (error_message != NULL); 2540 if (!((*info->callbacks->reloc_dangerous) 2541 (info, error_message, input_bfd, input_section, 2542 rel->r_offset))) 2543 return FALSE; 2544 break; 2545 } 2546 } 2547 } 2548 2549 return ok; 2550 } 2551 2552 2553 /* Look through the relocs for a section during the first phase, and 2554 calculate needed space in the global offset table, procedure linkage 2555 table, and dynamic reloc sections. */ 2556 2557 static bfd_boolean 2558 elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info, 2559 asection *sec, const Elf_Internal_Rela *relocs) 2560 { 2561 struct elf32_tic6x_link_hash_table *htab; 2562 Elf_Internal_Shdr *symtab_hdr; 2563 struct elf_link_hash_entry **sym_hashes; 2564 const Elf_Internal_Rela *rel; 2565 const Elf_Internal_Rela *rel_end; 2566 asection *sreloc; 2567 2568 if (info->relocatable) 2569 return TRUE; 2570 2571 htab = elf32_tic6x_hash_table (info); 2572 symtab_hdr = &elf_symtab_hdr (abfd); 2573 sym_hashes = elf_sym_hashes (abfd); 2574 2575 /* Create dynamic sections for relocatable executables so that we can 2576 copy relocations. */ 2577 if (elf32_tic6x_using_dsbt (abfd) 2578 && ! htab->elf.dynamic_sections_created) 2579 { 2580 if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) 2581 return FALSE; 2582 } 2583 2584 sreloc = NULL; 2585 2586 rel_end = relocs + sec->reloc_count; 2587 for (rel = relocs; rel < rel_end; rel++) 2588 { 2589 unsigned int r_type; 2590 unsigned long r_symndx; 2591 struct elf_link_hash_entry *h; 2592 Elf_Internal_Sym *isym; 2593 2594 r_symndx = ELF32_R_SYM (rel->r_info); 2595 r_type = ELF32_R_TYPE (rel->r_info); 2596 2597 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) 2598 { 2599 (*_bfd_error_handler) (_("%B: bad symbol index: %d"), 2600 abfd, 2601 r_symndx); 2602 return FALSE; 2603 } 2604 2605 if (r_symndx < symtab_hdr->sh_info) 2606 { 2607 /* A local symbol. */ 2608 isym = bfd_sym_from_r_symndx (&htab->sym_cache, 2609 abfd, r_symndx); 2610 if (isym == NULL) 2611 return FALSE; 2612 h = NULL; 2613 } 2614 else 2615 { 2616 isym = NULL; 2617 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 2618 while (h->root.type == bfd_link_hash_indirect 2619 || h->root.type == bfd_link_hash_warning) 2620 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2621 } 2622 2623 switch (r_type) 2624 { 2625 case R_C6000_PCR_S21: 2626 /* This symbol requires a procedure linkage table entry. We 2627 actually build the entry in adjust_dynamic_symbol, 2628 because this might be a case of linking PIC code which is 2629 never referenced by a dynamic object, in which case we 2630 don't need to generate a procedure linkage table entry 2631 after all. */ 2632 2633 /* If this is a local symbol, we resolve it directly without 2634 creating a procedure linkage table entry. */ 2635 if (h == NULL) 2636 continue; 2637 2638 h->needs_plt = 1; 2639 h->plt.refcount += 1; 2640 break; 2641 2642 case R_C6000_SBR_GOT_U15_W: 2643 case R_C6000_SBR_GOT_L16_W: 2644 case R_C6000_SBR_GOT_H16_W: 2645 /* This symbol requires a global offset table entry. */ 2646 if (h != NULL) 2647 { 2648 h->got.refcount += 1; 2649 } 2650 else 2651 { 2652 bfd_signed_vma *local_got_refcounts; 2653 2654 /* This is a global offset table entry for a local symbol. */ 2655 local_got_refcounts = elf_local_got_refcounts (abfd); 2656 if (local_got_refcounts == NULL) 2657 { 2658 bfd_size_type size; 2659 2660 size = symtab_hdr->sh_info; 2661 size *= (sizeof (bfd_signed_vma) 2662 + sizeof (bfd_vma) + sizeof(char)); 2663 local_got_refcounts = bfd_zalloc (abfd, size); 2664 if (local_got_refcounts == NULL) 2665 return FALSE; 2666 elf_local_got_refcounts (abfd) = local_got_refcounts; 2667 } 2668 local_got_refcounts[r_symndx] += 1; 2669 } 2670 2671 if (htab->elf.sgot == NULL) 2672 { 2673 if (htab->elf.dynobj == NULL) 2674 htab->elf.dynobj = abfd; 2675 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) 2676 return FALSE; 2677 } 2678 break; 2679 2680 case R_C6000_DSBT_INDEX: 2681 /* We'd like to check for nonzero dsbt_index here, but it's 2682 set up only after check_relocs is called. Instead, we 2683 store the number of R_C6000_DSBT_INDEX relocs in the 2684 pc_count field, and potentially discard the extra space 2685 in elf32_tic6x_allocate_dynrelocs. */ 2686 if (!info->shared) 2687 break; 2688 2689 /* fall through */ 2690 case R_C6000_ABS32: 2691 case R_C6000_ABS16: 2692 case R_C6000_ABS8: 2693 case R_C6000_ABS_S16: 2694 case R_C6000_ABS_L16: 2695 case R_C6000_ABS_H16: 2696 /* If we are creating a shared library, and this is a reloc 2697 against a global symbol, or a non PC relative reloc 2698 against a local symbol, then we need to copy the reloc 2699 into the shared library. However, if we are linking with 2700 -Bsymbolic, we do not need to copy a reloc against a 2701 global symbol which is defined in an object we are 2702 including in the link (i.e., DEF_REGULAR is set). At 2703 this point we have not seen all the input files, so it is 2704 possible that DEF_REGULAR is not set now but will be set 2705 later (it is never cleared). In case of a weak definition, 2706 DEF_REGULAR may be cleared later by a strong definition in 2707 a shared library. We account for that possibility below by 2708 storing information in the relocs_copied field of the hash 2709 table entry. A similar situation occurs when creating 2710 shared libraries and symbol visibility changes render the 2711 symbol local. 2712 2713 If on the other hand, we are creating an executable, we 2714 may need to keep relocations for symbols satisfied by a 2715 dynamic library if we manage to avoid copy relocs for the 2716 symbol. */ 2717 if ((info->shared || elf32_tic6x_using_dsbt (abfd)) 2718 && (sec->flags & SEC_ALLOC) != 0) 2719 { 2720 struct elf_dyn_relocs *p; 2721 struct elf_dyn_relocs **head; 2722 2723 /* We must copy these reloc types into the output file. 2724 Create a reloc section in dynobj and make room for 2725 this reloc. */ 2726 if (sreloc == NULL) 2727 { 2728 if (htab->elf.dynobj == NULL) 2729 htab->elf.dynobj = abfd; 2730 2731 sreloc = _bfd_elf_make_dynamic_reloc_section 2732 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE); 2733 2734 if (sreloc == NULL) 2735 return FALSE; 2736 } 2737 2738 /* If this is a global symbol, we count the number of 2739 relocations we need for this symbol. */ 2740 if (h != NULL) 2741 { 2742 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs; 2743 } 2744 else 2745 { 2746 /* Track dynamic relocs needed for local syms too. 2747 We really need local syms available to do this 2748 easily. Oh well. */ 2749 void **vpp; 2750 asection *s; 2751 2752 s = bfd_section_from_elf_index (abfd, isym->st_shndx); 2753 if (s == NULL) 2754 s = sec; 2755 2756 vpp = &elf_section_data (s)->local_dynrel; 2757 head = (struct elf_dyn_relocs **)vpp; 2758 } 2759 2760 p = *head; 2761 if (p == NULL || p->sec != sec) 2762 { 2763 bfd_size_type amt = sizeof *p; 2764 p = bfd_alloc (htab->elf.dynobj, amt); 2765 if (p == NULL) 2766 return FALSE; 2767 p->next = *head; 2768 *head = p; 2769 p->sec = sec; 2770 p->count = 0; 2771 } 2772 2773 p->count += 1; 2774 if (r_type == R_C6000_DSBT_INDEX) 2775 p->pc_count += 1; 2776 } 2777 break; 2778 2779 case R_C6000_SBR_U15_B: 2780 case R_C6000_SBR_U15_H: 2781 case R_C6000_SBR_U15_W: 2782 case R_C6000_SBR_S16: 2783 case R_C6000_SBR_L16_B: 2784 case R_C6000_SBR_L16_H: 2785 case R_C6000_SBR_L16_W: 2786 case R_C6000_SBR_H16_B: 2787 case R_C6000_SBR_H16_H: 2788 case R_C6000_SBR_H16_W: 2789 if (h != NULL && info->executable) 2790 { 2791 /* For B14-relative addresses, we might need a copy 2792 reloc. */ 2793 h->non_got_ref = 1; 2794 } 2795 break; 2796 2797 default: 2798 break; 2799 } 2800 } 2801 2802 return TRUE; 2803 } 2804 2805 static bfd_boolean 2806 elf32_tic6x_add_symbol_hook (bfd *abfd, 2807 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2808 Elf_Internal_Sym *sym, 2809 const char **namep ATTRIBUTE_UNUSED, 2810 flagword *flagsp ATTRIBUTE_UNUSED, 2811 asection **secp, 2812 bfd_vma *valp) 2813 { 2814 switch (sym->st_shndx) 2815 { 2816 case SHN_TIC6X_SCOMMON: 2817 *secp = bfd_make_section_old_way (abfd, ".scommon"); 2818 (*secp)->flags |= SEC_IS_COMMON; 2819 *valp = sym->st_size; 2820 bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value)); 2821 break; 2822 } 2823 2824 return TRUE; 2825 } 2826 2827 static void 2828 elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym) 2829 { 2830 elf_symbol_type *elfsym; 2831 2832 elfsym = (elf_symbol_type *) asym; 2833 switch (elfsym->internal_elf_sym.st_shndx) 2834 { 2835 case SHN_TIC6X_SCOMMON: 2836 if (tic6x_elf_scom_section.name == NULL) 2837 { 2838 /* Initialize the small common section. */ 2839 tic6x_elf_scom_section.name = ".scommon"; 2840 tic6x_elf_scom_section.flags = SEC_IS_COMMON; 2841 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section; 2842 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol; 2843 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr; 2844 tic6x_elf_scom_symbol.name = ".scommon"; 2845 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM; 2846 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section; 2847 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol; 2848 } 2849 asym->section = &tic6x_elf_scom_section; 2850 asym->value = elfsym->internal_elf_sym.st_size; 2851 break; 2852 } 2853 } 2854 2855 static int 2856 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, 2857 const char *name ATTRIBUTE_UNUSED, 2858 Elf_Internal_Sym *sym, 2859 asection *input_sec, 2860 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 2861 { 2862 /* If we see a common symbol, which implies a relocatable link, then 2863 if a symbol was small common in an input file, mark it as small 2864 common in the output file. */ 2865 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) 2866 sym->st_shndx = SHN_TIC6X_SCOMMON; 2867 2868 return 1; 2869 } 2870 2871 static bfd_boolean 2872 elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, 2873 asection *sec, 2874 int *retval) 2875 { 2876 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) 2877 { 2878 *retval = SHN_TIC6X_SCOMMON; 2879 return TRUE; 2880 } 2881 2882 return FALSE; 2883 } 2884 2885 /* Allocate space in .plt, .got and associated reloc sections for 2886 dynamic relocs. */ 2887 2888 static bfd_boolean 2889 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) 2890 { 2891 struct bfd_link_info *info; 2892 struct elf32_tic6x_link_hash_table *htab; 2893 struct elf32_tic6x_link_hash_entry *eh; 2894 struct elf_dyn_relocs *p; 2895 2896 if (h->root.type == bfd_link_hash_indirect) 2897 return TRUE; 2898 2899 if (h->root.type == bfd_link_hash_warning) 2900 /* When warning symbols are created, they **replace** the "real" 2901 entry in the hash table, thus we never get to see the real 2902 symbol in a hash traversal. So look at it now. */ 2903 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2904 eh = (struct elf32_tic6x_link_hash_entry *) h; 2905 2906 info = (struct bfd_link_info *) inf; 2907 htab = elf32_tic6x_hash_table (info); 2908 2909 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0) 2910 { 2911 /* Make sure this symbol is output as a dynamic symbol. 2912 Undefined weak syms won't yet be marked as dynamic. */ 2913 if (h->dynindx == -1 && !h->forced_local) 2914 { 2915 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2916 return FALSE; 2917 } 2918 2919 if (info->shared 2920 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) 2921 { 2922 asection *s = htab->elf.splt; 2923 2924 /* If this is the first .plt entry, make room for the special 2925 first entry. */ 2926 if (s->size == 0) 2927 s->size += PLT_ENTRY_SIZE; 2928 2929 h->plt.offset = s->size; 2930 2931 /* If this symbol is not defined in a regular file, and we are 2932 not generating a shared library, then set the symbol to this 2933 location in the .plt. This is required to make function 2934 pointers compare as equal between the normal executable and 2935 the shared library. */ 2936 if (! info->shared && !h->def_regular) 2937 { 2938 h->root.u.def.section = s; 2939 h->root.u.def.value = h->plt.offset; 2940 } 2941 2942 /* Make room for this entry. */ 2943 s->size += PLT_ENTRY_SIZE; 2944 /* We also need to make an entry in the .got.plt section, which 2945 will be placed in the .got section by the linker script. */ 2946 htab->elf.sgotplt->size += 4; 2947 /* We also need to make an entry in the .rel.plt section. */ 2948 htab->elf.srelplt->size += sizeof (Elf32_External_Rela); 2949 } 2950 else 2951 { 2952 h->plt.offset = (bfd_vma) -1; 2953 h->needs_plt = 0; 2954 } 2955 } 2956 else 2957 { 2958 h->plt.offset = (bfd_vma) -1; 2959 h->needs_plt = 0; 2960 } 2961 2962 if (h->got.refcount > 0) 2963 { 2964 asection *s; 2965 2966 /* Make sure this symbol is output as a dynamic symbol. 2967 Undefined weak syms won't yet be marked as dynamic. */ 2968 if (h->dynindx == -1 2969 && !h->forced_local) 2970 { 2971 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2972 return FALSE; 2973 } 2974 2975 s = htab->elf.sgot; 2976 h->got.offset = s->size; 2977 s->size += 4; 2978 2979 if (!(ELF_ST_VISIBILITY (h->other) 2980 && h->root.type == bfd_link_hash_undefweak)) 2981 htab->elf.srelgot->size += sizeof (Elf32_External_Rela); 2982 } 2983 else 2984 h->got.offset = (bfd_vma) -1; 2985 2986 if (eh->dyn_relocs == NULL) 2987 return TRUE; 2988 2989 /* Discard relocs on undefined weak syms with non-default 2990 visibility. */ 2991 if (info->shared || elf32_tic6x_using_dsbt (htab->obfd)) 2992 { 2993 /* We use the pc_count field to hold the number of 2994 R_C6000_DSBT_INDEX relocs. */ 2995 if (htab->params.dsbt_index != 0) 2996 { 2997 struct elf_dyn_relocs **pp; 2998 2999 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) 3000 { 3001 p->count -= p->pc_count; 3002 p->pc_count = 0; 3003 if (p->count == 0) 3004 *pp = p->next; 3005 else 3006 pp = &p->next; 3007 } 3008 } 3009 3010 if (eh->dyn_relocs != NULL 3011 && h->root.type == bfd_link_hash_undefweak) 3012 { 3013 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) 3014 eh->dyn_relocs = NULL; 3015 3016 /* Make sure undefined weak symbols are output as a dynamic 3017 symbol in PIEs. */ 3018 else if (h->dynindx == -1 3019 && !h->forced_local) 3020 { 3021 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3022 return FALSE; 3023 } 3024 } 3025 } 3026 3027 /* Finally, allocate space. */ 3028 for (p = eh->dyn_relocs; p != NULL; p = p->next) 3029 { 3030 asection *sreloc; 3031 3032 sreloc = elf_section_data (p->sec)->sreloc; 3033 3034 BFD_ASSERT (sreloc != NULL); 3035 sreloc->size += p->count * sizeof (Elf32_External_Rela); 3036 } 3037 3038 return TRUE; 3039 } 3040 3041 /* Find any dynamic relocs that apply to read-only sections. */ 3042 3043 static bfd_boolean 3044 elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) 3045 { 3046 struct elf32_tic6x_link_hash_entry *eh; 3047 struct elf_dyn_relocs *p; 3048 3049 if (h->root.type == bfd_link_hash_warning) 3050 h = (struct elf_link_hash_entry *) h->root.u.i.link; 3051 3052 eh = (struct elf32_tic6x_link_hash_entry *) h; 3053 for (p = eh->dyn_relocs; p != NULL; p = p->next) 3054 { 3055 asection *s = p->sec->output_section; 3056 3057 if (s != NULL && (s->flags & SEC_READONLY) != 0) 3058 { 3059 struct bfd_link_info *info = (struct bfd_link_info *) inf; 3060 3061 info->flags |= DF_TEXTREL; 3062 3063 /* Not an error, just cut short the traversal. */ 3064 return FALSE; 3065 } 3066 } 3067 return TRUE; 3068 } 3069 3070 /* Set the sizes of the dynamic sections. */ 3071 3072 static bfd_boolean 3073 elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) 3074 { 3075 struct elf32_tic6x_link_hash_table *htab; 3076 bfd *dynobj; 3077 asection *s; 3078 bfd_boolean relocs; 3079 bfd *ibfd; 3080 3081 htab = elf32_tic6x_hash_table (info); 3082 dynobj = htab->elf.dynobj; 3083 if (dynobj == NULL) 3084 abort (); 3085 3086 if (htab->elf.dynamic_sections_created) 3087 { 3088 /* Set the contents of the .interp section to the interpreter. */ 3089 if (info->executable) 3090 { 3091 s = bfd_get_section_by_name (dynobj, ".interp"); 3092 if (s == NULL) 3093 abort (); 3094 s->size = sizeof ELF_DYNAMIC_INTERPRETER; 3095 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; 3096 } 3097 } 3098 3099 /* Set up .got offsets for local syms, and space for local dynamic 3100 relocs. */ 3101 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) 3102 { 3103 bfd_signed_vma *local_got; 3104 bfd_signed_vma *end_local_got; 3105 char *local_tls_type; 3106 bfd_vma *local_tlsdesc_gotent; 3107 bfd_size_type locsymcount; 3108 Elf_Internal_Shdr *symtab_hdr; 3109 asection *srel; 3110 3111 for (s = ibfd->sections; s != NULL; s = s->next) 3112 { 3113 struct elf_dyn_relocs *p; 3114 3115 for (p = ((struct elf_dyn_relocs *) 3116 elf_section_data (s)->local_dynrel); 3117 p != NULL; 3118 p = p->next) 3119 { 3120 if (!bfd_is_abs_section (p->sec) 3121 && bfd_is_abs_section (p->sec->output_section)) 3122 { 3123 /* Input section has been discarded, either because 3124 it is a copy of a linkonce section or due to 3125 linker script /DISCARD/, so we'll be discarding 3126 the relocs too. */ 3127 } 3128 else if (p->count != 0) 3129 { 3130 srel = elf_section_data (p->sec)->sreloc; 3131 srel->size += p->count * sizeof (Elf32_External_Rela); 3132 if ((p->sec->output_section->flags & SEC_READONLY) != 0) 3133 info->flags |= DF_TEXTREL; 3134 } 3135 } 3136 } 3137 3138 local_got = elf_local_got_refcounts (ibfd); 3139 if (!local_got) 3140 continue; 3141 3142 symtab_hdr = &elf_symtab_hdr (ibfd); 3143 locsymcount = symtab_hdr->sh_info; 3144 end_local_got = local_got + locsymcount; 3145 s = htab->elf.sgot; 3146 srel = htab->elf.srelgot; 3147 for (; local_got < end_local_got; 3148 ++local_got, ++local_tls_type, ++local_tlsdesc_gotent) 3149 { 3150 if (*local_got > 0) 3151 { 3152 *local_got = s->size; 3153 s->size += 4; 3154 3155 if (info->shared || elf32_tic6x_using_dsbt (output_bfd)) 3156 { 3157 srel->size += sizeof (Elf32_External_Rela); 3158 } 3159 } 3160 else 3161 *local_got = (bfd_vma) -1; 3162 } 3163 } 3164 3165 /* Allocate global sym .plt and .got entries, and space for global 3166 sym dynamic relocs. */ 3167 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info); 3168 3169 /* We now have determined the sizes of the various dynamic sections. 3170 Allocate memory for them. */ 3171 relocs = FALSE; 3172 for (s = dynobj->sections; s != NULL; s = s->next) 3173 { 3174 bfd_boolean strip_section = TRUE; 3175 3176 if ((s->flags & SEC_LINKER_CREATED) == 0) 3177 continue; 3178 3179 if (s == htab->dsbt) 3180 s->size = 4 * htab->params.dsbt_size; 3181 else if (s == htab->elf.splt 3182 || s == htab->elf.sgot 3183 || s == htab->elf.sgotplt 3184 || s == htab->sdynbss) 3185 { 3186 /* Strip this section if we don't need it; see the 3187 comment below. */ 3188 /* We'd like to strip these sections if they aren't needed, but if 3189 we've exported dynamic symbols from them we must leave them. 3190 It's too late to tell BFD to get rid of the symbols. */ 3191 3192 if (htab->elf.hplt != NULL) 3193 strip_section = FALSE; 3194 3195 /* Round up the size of the PLT section to a multiple of 32. */ 3196 if (s == htab->elf.splt && s->size > 0) 3197 s->size = (s->size + 31) & ~(bfd_vma)31; 3198 } 3199 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) 3200 { 3201 if (s->size != 0 3202 && s != htab->elf.srelplt) 3203 relocs = TRUE; 3204 3205 /* We use the reloc_count field as a counter if we need 3206 to copy relocs into the output file. */ 3207 s->reloc_count = 0; 3208 } 3209 else 3210 { 3211 /* It's not one of our sections, so don't allocate space. */ 3212 continue; 3213 } 3214 3215 if (s->size == 0) 3216 { 3217 /* If we don't need this section, strip it from the 3218 output file. This is mostly to handle .rel.bss and 3219 .rel.plt. We must create both sections in 3220 create_dynamic_sections, because they must be created 3221 before the linker maps input sections to output 3222 sections. The linker does that before 3223 adjust_dynamic_symbol is called, and it is that 3224 function which decides whether anything needs to go 3225 into these sections. */ 3226 if (strip_section) 3227 s->flags |= SEC_EXCLUDE; 3228 continue; 3229 } 3230 3231 if ((s->flags & SEC_HAS_CONTENTS) == 0) 3232 continue; 3233 3234 /* Allocate memory for the section contents. We use bfd_zalloc 3235 here in case unused entries are not reclaimed before the 3236 section's contents are written out. This should not happen, 3237 but this way if it does, we get a R_C6000_NONE reloc instead 3238 of garbage. */ 3239 s->contents = bfd_zalloc (dynobj, s->size); 3240 if (s->contents == NULL) 3241 return FALSE; 3242 } 3243 3244 if (htab->elf.dynamic_sections_created) 3245 { 3246 /* Add some entries to the .dynamic section. We fill in the 3247 values later, in elf32_tic6x_finish_dynamic_sections, but we 3248 must add the entries now so that we get the correct size for 3249 the .dynamic section. The DT_DEBUG entry is filled in by the 3250 dynamic linker and used by the debugger. */ 3251 #define add_dynamic_entry(TAG, VAL) \ 3252 _bfd_elf_add_dynamic_entry (info, TAG, VAL) 3253 3254 if (info->executable) 3255 { 3256 if (!add_dynamic_entry (DT_DEBUG, 0)) 3257 return FALSE; 3258 } 3259 3260 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0) 3261 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size) 3262 || !add_dynamic_entry (DT_C6000_DSBT_INDEX, 3263 htab->params.dsbt_index)) 3264 return FALSE; 3265 3266 if (htab->elf.splt->size != 0) 3267 { 3268 if (!add_dynamic_entry (DT_PLTGOT, 0) 3269 || !add_dynamic_entry (DT_PLTRELSZ, 0) 3270 || !add_dynamic_entry (DT_PLTREL, DT_RELA) 3271 || !add_dynamic_entry (DT_JMPREL, 0)) 3272 return FALSE; 3273 } 3274 3275 if (relocs) 3276 { 3277 if (!add_dynamic_entry (DT_RELA, 0) 3278 || !add_dynamic_entry (DT_RELASZ, 0) 3279 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) 3280 return FALSE; 3281 3282 /* If any dynamic relocs apply to a read-only section, 3283 then we need a DT_TEXTREL entry. */ 3284 if ((info->flags & DF_TEXTREL) == 0) 3285 elf_link_hash_traverse (&htab->elf, 3286 elf32_tic6x_readonly_dynrelocs, info); 3287 3288 if ((info->flags & DF_TEXTREL) != 0) 3289 { 3290 if (!add_dynamic_entry (DT_TEXTREL, 0)) 3291 return FALSE; 3292 } 3293 } 3294 } 3295 #undef add_dynamic_entry 3296 3297 return TRUE; 3298 } 3299 3300 /* This function is called after all the input files have been read, 3301 and the input sections have been assigned to output sections. */ 3302 3303 static bfd_boolean 3304 elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) 3305 { 3306 if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable) 3307 { 3308 struct elf_link_hash_entry *h; 3309 3310 /* Force a PT_GNU_STACK segment to be created. */ 3311 if (! elf_tdata (output_bfd)->stack_flags) 3312 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X; 3313 3314 /* Define __stacksize if it's not defined yet. */ 3315 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize", 3316 FALSE, FALSE, FALSE); 3317 if (! h || h->root.type != bfd_link_hash_defined 3318 || h->type != STT_OBJECT 3319 || !h->def_regular) 3320 { 3321 struct bfd_link_hash_entry *bh = NULL; 3322 3323 if (!(_bfd_generic_link_add_one_symbol 3324 (info, output_bfd, "__stacksize", 3325 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE, 3326 (const char *) NULL, FALSE, 3327 get_elf_backend_data (output_bfd)->collect, &bh))) 3328 return FALSE; 3329 3330 h = (struct elf_link_hash_entry *) bh; 3331 h->def_regular = 1; 3332 h->type = STT_OBJECT; 3333 } 3334 } 3335 return TRUE; 3336 } 3337 3338 static bfd_boolean 3339 elf32_tic6x_modify_program_headers (bfd *output_bfd, 3340 struct bfd_link_info *info) 3341 { 3342 struct elf_obj_tdata *tdata = elf_tdata (output_bfd); 3343 struct elf_segment_map *m; 3344 Elf_Internal_Phdr *p; 3345 3346 /* objcopy and strip preserve what's already there using 3347 elf32_tic6x_copy_private_bfd_data (). */ 3348 if (! info) 3349 return TRUE; 3350 3351 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++) 3352 if (m->p_type == PT_GNU_STACK) 3353 break; 3354 3355 if (m) 3356 { 3357 struct elf_link_hash_entry *h; 3358 3359 /* Obtain the pointer to the __stacksize symbol. */ 3360 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize", 3361 FALSE, FALSE, FALSE); 3362 if (h) 3363 { 3364 while (h->root.type == bfd_link_hash_indirect 3365 || h->root.type == bfd_link_hash_warning) 3366 h = (struct elf_link_hash_entry *) h->root.u.i.link; 3367 BFD_ASSERT (h->root.type == bfd_link_hash_defined); 3368 } 3369 3370 /* Set the header p_memsz from the symbol value. We 3371 intentionally ignore the symbol section. */ 3372 if (h && h->root.type == bfd_link_hash_defined) 3373 p->p_memsz = h->root.u.def.value; 3374 else 3375 p->p_memsz = DEFAULT_STACK_SIZE; 3376 3377 p->p_align = 8; 3378 } 3379 3380 return TRUE; 3381 } 3382 3383 static bfd_boolean 3384 elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, 3385 struct bfd_link_info *info) 3386 { 3387 struct elf32_tic6x_link_hash_table *htab; 3388 bfd *dynobj; 3389 asection *sdyn; 3390 3391 htab = elf32_tic6x_hash_table (info); 3392 dynobj = htab->elf.dynobj; 3393 sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); 3394 3395 if (elf_hash_table (info)->dynamic_sections_created) 3396 { 3397 Elf32_External_Dyn * dyncon; 3398 Elf32_External_Dyn * dynconend; 3399 3400 BFD_ASSERT (sdyn != NULL); 3401 3402 dyncon = (Elf32_External_Dyn *) sdyn->contents; 3403 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); 3404 3405 for (; dyncon < dynconend; dyncon++) 3406 { 3407 Elf_Internal_Dyn dyn; 3408 asection *s; 3409 3410 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); 3411 3412 switch (dyn.d_tag) 3413 { 3414 default: 3415 break; 3416 3417 case DT_C6000_DSBT_BASE: 3418 s = htab->dsbt; 3419 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset); 3420 break; 3421 3422 case DT_PLTGOT: 3423 s = htab->elf.sgotplt; 3424 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; 3425 break; 3426 3427 case DT_JMPREL: 3428 s = htab->elf.srelplt; 3429 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; 3430 break; 3431 3432 case DT_PLTRELSZ: 3433 s = htab->elf.srelplt; 3434 dyn.d_un.d_val = s->size; 3435 break; 3436 } 3437 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); 3438 } 3439 3440 /* Fill in the first entry in the procedure linkage table. */ 3441 if (htab->elf.splt && htab->elf.splt->size > 0) 3442 { 3443 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma 3444 + htab->elf.sgotplt->output_offset 3445 - htab->dsbt->output_section->vma 3446 - htab->dsbt->output_offset) / 4; 3447 3448 /* ldw .D2T2 *+b14[$GOT(0)],b2 */ 3449 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e, 3450 htab->elf.splt->contents); 3451 /* ldw .D2T2 *+b14[$GOT(4)],b1 */ 3452 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e, 3453 htab->elf.splt->contents + 4); 3454 /* nop 3 */ 3455 bfd_put_32 (output_bfd, 0x00004000, 3456 htab->elf.splt->contents + 8); 3457 /* b .s2 b2 */ 3458 bfd_put_32 (output_bfd, 0x00080362, 3459 htab->elf.splt->contents + 12); 3460 /* nop 5 */ 3461 bfd_put_32 (output_bfd, 0x00008000, 3462 htab->elf.splt->contents + 16); 3463 3464 elf_section_data (htab->elf.splt->output_section) 3465 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; 3466 } 3467 } 3468 3469 return TRUE; 3470 } 3471 3472 /* Return address for Ith PLT stub in section PLT, for relocation REL 3473 or (bfd_vma) -1 if it should not be included. */ 3474 3475 static bfd_vma 3476 elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt, 3477 const arelent *rel ATTRIBUTE_UNUSED) 3478 { 3479 return plt->vma + (i + 1) * PLT_ENTRY_SIZE; 3480 } 3481 3482 static int 3483 elf32_tic6x_obj_attrs_arg_type (int tag) 3484 { 3485 if (tag == Tag_ABI_compatibility) 3486 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL; 3487 else if (tag & 1) 3488 return ATTR_TYPE_FLAG_STR_VAL; 3489 else 3490 return ATTR_TYPE_FLAG_INT_VAL; 3491 } 3492 3493 static int 3494 elf32_tic6x_obj_attrs_order (int num) 3495 { 3496 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE) 3497 return Tag_ABI_conformance; 3498 if ((num - 1) < Tag_ABI_conformance) 3499 return num - 1; 3500 return num; 3501 } 3502 3503 static bfd_boolean 3504 elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag) 3505 { 3506 if ((tag & 127) < 64) 3507 { 3508 _bfd_error_handler 3509 (_("%B: error: unknown mandatory EABI object attribute %d"), 3510 abfd, tag); 3511 bfd_set_error (bfd_error_bad_value); 3512 return FALSE; 3513 } 3514 else 3515 { 3516 _bfd_error_handler 3517 (_("%B: 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, bfd *obfd) 3598 { 3599 bfd_boolean result = TRUE; 3600 obj_attribute *in_attr; 3601 obj_attribute *out_attr; 3602 int i; 3603 int array_align_in, array_align_out, array_expect_in, array_expect_out; 3604 3605 if (!elf_known_obj_attributes_proc (obfd)[0].i) 3606 { 3607 /* This is the first object. Copy the attributes. */ 3608 _bfd_elf_copy_obj_attributes (ibfd, obfd); 3609 3610 out_attr = elf_known_obj_attributes_proc (obfd); 3611 3612 /* Use the Tag_null value to indicate the attributes have been 3613 initialized. */ 3614 out_attr[0].i = 1; 3615 3616 return TRUE; 3617 } 3618 3619 in_attr = elf_known_obj_attributes_proc (ibfd); 3620 out_attr = elf_known_obj_attributes_proc (obfd); 3621 3622 /* No specification yet for handling of unknown attributes, so just 3623 ignore them and handle known ones. */ 3624 3625 if (out_attr[Tag_ABI_stack_align_preserved].i 3626 < in_attr[Tag_ABI_stack_align_needed].i) 3627 { 3628 _bfd_error_handler 3629 (_("error: %B requires more stack alignment than %B preserves"), 3630 ibfd, obfd); 3631 result = FALSE; 3632 } 3633 if (in_attr[Tag_ABI_stack_align_preserved].i 3634 < out_attr[Tag_ABI_stack_align_needed].i) 3635 { 3636 _bfd_error_handler 3637 (_("error: %B requires more stack alignment than %B preserves"), 3638 obfd, ibfd); 3639 result = FALSE; 3640 } 3641 3642 array_align_in = elf32_tic6x_tag_to_array_alignment 3643 (in_attr[Tag_ABI_array_object_alignment].i); 3644 if (array_align_in == -1) 3645 { 3646 _bfd_error_handler 3647 (_("error: unknown Tag_ABI_array_object_alignment value in %B"), 3648 ibfd); 3649 result = FALSE; 3650 } 3651 array_align_out = elf32_tic6x_tag_to_array_alignment 3652 (out_attr[Tag_ABI_array_object_alignment].i); 3653 if (array_align_out == -1) 3654 { 3655 _bfd_error_handler 3656 (_("error: unknown Tag_ABI_array_object_alignment value in %B"), 3657 obfd); 3658 result = FALSE; 3659 } 3660 array_expect_in = elf32_tic6x_tag_to_array_alignment 3661 (in_attr[Tag_ABI_array_object_align_expected].i); 3662 if (array_expect_in == -1) 3663 { 3664 _bfd_error_handler 3665 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"), 3666 ibfd); 3667 result = FALSE; 3668 } 3669 array_expect_out = elf32_tic6x_tag_to_array_alignment 3670 (out_attr[Tag_ABI_array_object_align_expected].i); 3671 if (array_expect_out == -1) 3672 { 3673 _bfd_error_handler 3674 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"), 3675 obfd); 3676 result = FALSE; 3677 } 3678 3679 if (array_align_out < array_expect_in) 3680 { 3681 _bfd_error_handler 3682 (_("error: %B requires more array alignment than %B preserves"), 3683 ibfd, obfd); 3684 result = FALSE; 3685 } 3686 if (array_align_in < array_expect_out) 3687 { 3688 _bfd_error_handler 3689 (_("error: %B requires more array alignment than %B preserves"), 3690 obfd, ibfd); 3691 result = FALSE; 3692 } 3693 3694 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++) 3695 { 3696 switch (i) 3697 { 3698 case Tag_ISA: 3699 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i, 3700 out_attr[i].i); 3701 break; 3702 3703 case Tag_ABI_wchar_t: 3704 if (out_attr[i].i == 0) 3705 out_attr[i].i = in_attr[i].i; 3706 if (out_attr[i].i != 0 3707 && in_attr[i].i != 0 3708 && out_attr[i].i != in_attr[i].i) 3709 { 3710 _bfd_error_handler 3711 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd); 3712 } 3713 break; 3714 3715 case Tag_ABI_stack_align_needed: 3716 if (out_attr[i].i < in_attr[i].i) 3717 out_attr[i].i = in_attr[i].i; 3718 break; 3719 3720 case Tag_ABI_stack_align_preserved: 3721 if (out_attr[i].i > in_attr[i].i) 3722 out_attr[i].i = in_attr[i].i; 3723 break; 3724 3725 case Tag_ABI_DSBT: 3726 if (out_attr[i].i != in_attr[i].i) 3727 { 3728 _bfd_error_handler 3729 (_("warning: %B and %B differ in whether code is " 3730 "compiled for DSBT"), 3731 obfd, ibfd); 3732 } 3733 break; 3734 3735 case Tag_ABI_PID: 3736 if (out_attr[i].i != in_attr[i].i) 3737 { 3738 _bfd_error_handler 3739 (_("warning: %B and %B differ in position-dependence of " 3740 "data addressing"), 3741 obfd, ibfd); 3742 } 3743 break; 3744 3745 case Tag_ABI_PIC: 3746 if (out_attr[i].i != in_attr[i].i) 3747 { 3748 _bfd_error_handler 3749 (_("warning: %B and %B differ in position-dependence of " 3750 "code addressing"), 3751 obfd, ibfd); 3752 } 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, obfd)) 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, bfd *obfd) 3807 { 3808 if (!_bfd_generic_verify_endian_match (ibfd, obfd)) 3809 return FALSE; 3810 3811 if (!elf32_tic6x_merge_attributes (ibfd, obfd)) 3812 return FALSE; 3813 3814 return TRUE; 3815 } 3816 3817 static bfd_boolean 3818 elf32_tic6x_copy_private_data (bfd * ibfd, bfd * obfd) 3819 { 3820 _bfd_elf_copy_private_bfd_data (ibfd, obfd); 3821 3822 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd)) 3823 return TRUE; 3824 3825 /* Copy the stack size. */ 3826 if (elf_tdata (ibfd)->phdr && elf_tdata (obfd)->phdr 3827 && elf32_tic6x_using_dsbt (ibfd) && elf32_tic6x_using_dsbt (obfd)) 3828 { 3829 unsigned i; 3830 3831 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++) 3832 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK) 3833 { 3834 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i]; 3835 3836 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++) 3837 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK) 3838 { 3839 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr)); 3840 3841 /* Rewrite the phdrs, since we're only called after they 3842 were first written. */ 3843 if (bfd_seek (obfd, 3844 (bfd_signed_vma) get_elf_backend_data (obfd) 3845 ->s->sizeof_ehdr, SEEK_SET) != 0 3846 || get_elf_backend_data (obfd)->s 3847 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr, 3848 elf_elfheader (obfd)->e_phnum) != 0) 3849 return FALSE; 3850 break; 3851 } 3852 3853 break; 3854 } 3855 } 3856 3857 return TRUE; 3858 } 3859 3860 #define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec 3861 #define TARGET_LITTLE_NAME "elf32-tic6x-le" 3862 #define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec 3863 #define TARGET_BIG_NAME "elf32-tic6x-be" 3864 #define ELF_ARCH bfd_arch_tic6x 3865 #define ELF_TARGET_ID TIC6X_ELF_DATA 3866 #define ELF_MACHINE_CODE EM_TI_C6000 3867 #define ELF_MAXPAGESIZE 0x1000 3868 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup 3869 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup 3870 #define bfd_elf32_bfd_copy_private_bfd_data elf32_tic6x_copy_private_data 3871 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data 3872 #define bfd_elf32_mkobject elf32_tic6x_mkobject 3873 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create 3874 #define bfd_elf32_bfd_link_hash_table_free elf32_tic6x_link_hash_table_free 3875 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook 3876 #define elf_backend_can_gc_sections 1 3877 #define elf_backend_default_use_rela_p 1 3878 #define elf_backend_may_use_rel_p 1 3879 #define elf_backend_may_use_rela_p 1 3880 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type 3881 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown 3882 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order 3883 #define elf_backend_obj_attrs_section ".c6xabi.attributes" 3884 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES 3885 #define elf_backend_obj_attrs_vendor "c6xabi" 3886 #define elf_backend_can_refcount 1 3887 #define elf_backend_want_got_plt 1 3888 #define elf_backend_want_dynbss 1 3889 #define elf_backend_plt_readonly 1 3890 #define elf_backend_rela_normal 1 3891 #define elf_backend_got_header_size 8 3892 #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook 3893 #define elf_backend_modify_program_headers \ 3894 elf32_tic6x_modify_program_headers 3895 #define elf_backend_create_dynamic_sections \ 3896 elf32_tic6x_create_dynamic_sections 3897 #define elf_backend_adjust_dynamic_symbol \ 3898 elf32_tic6x_adjust_dynamic_symbol 3899 #define elf_backend_check_relocs elf32_tic6x_check_relocs 3900 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook 3901 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing 3902 #define elf_backend_link_output_symbol_hook \ 3903 elf32_tic6x_link_output_symbol_hook 3904 #define elf_backend_section_from_bfd_section \ 3905 elf32_tic6x_section_from_bfd_section 3906 #define elf_backend_relocate_section elf32_tic6x_relocate_section 3907 #define elf_backend_finish_dynamic_symbol \ 3908 elf32_tic6x_finish_dynamic_symbol 3909 #define elf_backend_always_size_sections \ 3910 elf32_tic6x_always_size_sections 3911 #define elf_backend_size_dynamic_sections \ 3912 elf32_tic6x_size_dynamic_sections 3913 #define elf_backend_finish_dynamic_sections \ 3914 elf32_tic6x_finish_dynamic_sections 3915 #define elf_info_to_howto elf32_tic6x_info_to_howto 3916 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel 3917 3918 #undef elf_backend_omit_section_dynsym 3919 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym 3920 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val 3921 3922 3923 #include "elf32-target.h" 3924