1/* SuperH SH64-specific support for 64-bit ELF 2 Copyright (C) 2000-2017 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21#define SH64_ELF64 22 23#include "sysdep.h" 24#include "bfd.h" 25#include "bfdlink.h" 26#include "libbfd.h" 27#include "elf-bfd.h" 28#include "elf/sh.h" 29 30/* Add a suffix for datalabel indirection symbols. It must not match any 31 other symbols; user symbols with or without version or other 32 decoration. It must only be used internally and not emitted by any 33 means. */ 34#define DATALABEL_SUFFIX " DL" 35 36#define GOT_BIAS (-((long)-32768)) 37 38#define PLT_ENTRY_SIZE 64 39 40/* Return size of a PLT entry. */ 41#define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE 42 43/* Return offset of the PLT0 address in an absolute PLT entry. */ 44#define elf_sh64_plt_plt0_offset(info) 32 45 46/* Return offset of the linker in PLT0 entry. */ 47#define elf_sh64_plt0_gotplt_offset(info) 0 48 49/* Return offset of the trampoline in PLT entry */ 50#define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */ 51 52/* Return offset of the symbol in PLT entry. */ 53#define elf_sh64_plt_symbol_offset(info) 0 54 55/* Return offset of the relocation in PLT entry. */ 56#define elf_sh64_plt_reloc_offset(info) (bfd_link_pic (info) ? 52 : 44) 57 58#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" 59 60/* The sh linker needs to keep track of the number of relocs that it 61 decides to copy in check_relocs for each symbol. This is so that 62 it can discard PC relative relocs if it doesn't need them when 63 linking with -Bsymbolic. We store the information in a field 64 extending the regular ELF linker hash table. */ 65 66/* This structure keeps track of the number of PC relative relocs we 67 have copied for a given symbol. */ 68 69struct elf_sh64_pcrel_relocs_copied 70{ 71 /* Next section. */ 72 struct elf_sh64_pcrel_relocs_copied *next; 73 /* A section in dynobj. */ 74 asection *section; 75 /* Number of relocs copied in this section. */ 76 bfd_size_type count; 77}; 78 79/* sh ELF linker hash entry. */ 80 81struct elf_sh64_link_hash_entry 82{ 83 struct elf_link_hash_entry root; 84 85 bfd_vma datalabel_got_offset; 86 87 /* Number of PC relative relocs copied for this symbol. */ 88 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied; 89}; 90 91/* Traverse an sh ELF linker hash table. */ 92 93#define sh64_elf64_link_hash_traverse(table, func, info) \ 94 (elf_link_hash_traverse \ 95 ((table), \ 96 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ 97 (info))) 98 99static bfd_reloc_status_type sh_elf64_ignore_reloc 100 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 101static bfd_reloc_status_type sh_elf64_reloc 102 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 103 104static reloc_howto_type sh_elf64_howto_table[] = { 105 /* No relocation. */ 106 HOWTO (R_SH_NONE, /* type */ 107 0, /* rightshift */ 108 3, /* size (0 = byte, 1 = short, 2 = long) */ 109 0, /* bitsize */ 110 FALSE, /* pc_relative */ 111 0, /* bitpos */ 112 complain_overflow_dont, /* complain_on_overflow */ 113 sh_elf64_ignore_reloc, /* special_function */ 114 "R_SH_NONE", /* name */ 115 FALSE, /* partial_inplace */ 116 0, /* src_mask */ 117 0, /* dst_mask */ 118 FALSE), /* pcrel_offset */ 119 120 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and 121 src_mask to a non-zero value is similar to the COFF toolchain. */ 122 HOWTO (R_SH_DIR32, /* type */ 123 0, /* rightshift */ 124 2, /* size (0 = byte, 1 = short, 2 = long) */ 125 32, /* bitsize */ 126 FALSE, /* pc_relative */ 127 0, /* bitpos */ 128 complain_overflow_bitfield, /* complain_on_overflow */ 129 sh_elf64_reloc, /* special_function */ 130 "R_SH_DIR32", /* name */ 131 TRUE, /* partial_inplace */ 132 0xffffffff, /* src_mask */ 133 0xffffffff, /* dst_mask */ 134 FALSE), /* pcrel_offset */ 135 136 /* 32 bit PC relative relocation. */ 137 HOWTO (R_SH_REL32, /* type */ 138 0, /* rightshift */ 139 2, /* size (0 = byte, 1 = short, 2 = long) */ 140 32, /* bitsize */ 141 TRUE, /* pc_relative */ 142 0, /* bitpos */ 143 complain_overflow_signed, /* complain_on_overflow */ 144 sh_elf64_ignore_reloc, /* special_function */ 145 "R_SH_REL32", /* name */ 146 FALSE, /* partial_inplace */ 147 0, /* src_mask */ 148 0xffffffff, /* dst_mask */ 149 TRUE), /* pcrel_offset */ 150 151 /* For 32-bit sh, this is R_SH_DIR8WPN. */ 152 EMPTY_HOWTO (3), 153 154 /* For 32-bit sh, this is R_SH_IND12W. */ 155 EMPTY_HOWTO (4), 156 157 /* For 32-bit sh, this is R_SH_DIR8WPL. */ 158 EMPTY_HOWTO (5), 159 160 /* For 32-bit sh, this is R_SH_DIR8WPZ. */ 161 EMPTY_HOWTO (6), 162 163 /* For 32-bit sh, this is R_SH_DIR8BP. */ 164 EMPTY_HOWTO (7), 165 166 /* For 32-bit sh, this is R_SH_DIR8W. */ 167 EMPTY_HOWTO (8), 168 169 /* For 32-bit sh, this is R_SH_DIR8L. */ 170 EMPTY_HOWTO (9), 171 172 EMPTY_HOWTO (10), 173 EMPTY_HOWTO (11), 174 EMPTY_HOWTO (12), 175 EMPTY_HOWTO (13), 176 EMPTY_HOWTO (14), 177 EMPTY_HOWTO (15), 178 EMPTY_HOWTO (16), 179 EMPTY_HOWTO (17), 180 EMPTY_HOWTO (18), 181 EMPTY_HOWTO (19), 182 EMPTY_HOWTO (20), 183 EMPTY_HOWTO (21), 184 EMPTY_HOWTO (22), 185 EMPTY_HOWTO (23), 186 EMPTY_HOWTO (24), 187 188 /* The remaining relocs are a GNU extension used for relaxing. The 189 final pass of the linker never needs to do anything with any of 190 these relocs. Any required operations are handled by the 191 relaxation code. */ 192 193 /* A 16 bit switch table entry. This is generated for an expression 194 such as ``.word L1 - L2''. The offset holds the difference 195 between the reloc address and L2. */ 196 HOWTO (R_SH_SWITCH16, /* type */ 197 0, /* rightshift */ 198 1, /* size (0 = byte, 1 = short, 2 = long) */ 199 16, /* bitsize */ 200 FALSE, /* pc_relative */ 201 0, /* bitpos */ 202 complain_overflow_unsigned, /* complain_on_overflow */ 203 sh_elf64_ignore_reloc, /* special_function */ 204 "R_SH_SWITCH16", /* name */ 205 FALSE, /* partial_inplace */ 206 0, /* src_mask */ 207 0, /* dst_mask */ 208 TRUE), /* pcrel_offset */ 209 210 /* A 32 bit switch table entry. This is generated for an expression 211 such as ``.long L1 - L2''. The offset holds the difference 212 between the reloc address and L2. */ 213 HOWTO (R_SH_SWITCH32, /* type */ 214 0, /* rightshift */ 215 2, /* size (0 = byte, 1 = short, 2 = long) */ 216 32, /* bitsize */ 217 FALSE, /* pc_relative */ 218 0, /* bitpos */ 219 complain_overflow_unsigned, /* complain_on_overflow */ 220 sh_elf64_ignore_reloc, /* special_function */ 221 "R_SH_SWITCH32", /* name */ 222 FALSE, /* partial_inplace */ 223 0, /* src_mask */ 224 0, /* dst_mask */ 225 TRUE), /* pcrel_offset */ 226 227 /* For 32-bit sh, this is R_SH_USES. */ 228 EMPTY_HOWTO (27), 229 230 /* For 32-bit sh, this is R_SH_COUNT. */ 231 EMPTY_HOWTO (28), 232 233 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation, 234 this might be emitted. When linker relaxation is implemented, we 235 might want to use it. */ 236 EMPTY_HOWTO (29), 237 238 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation, 239 this might be emitted. When linker relaxation is implemented, we 240 might want to use it. */ 241 EMPTY_HOWTO (30), 242 243 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation, 244 this might be emitted. When linker relaxation is implemented, we 245 might want to use it. */ 246 EMPTY_HOWTO (31), 247 248 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation, 249 this might be emitted. When linker relaxation is implemented, we 250 might want to use it. */ 251 EMPTY_HOWTO (32), 252 253 /* An 8 bit switch table entry. This is generated for an expression 254 such as ``.word L1 - L2''. The offset holds the difference 255 between the reloc address and L2. */ 256 HOWTO (R_SH_SWITCH8, /* type */ 257 0, /* rightshift */ 258 0, /* size (0 = byte, 1 = short, 2 = long) */ 259 8, /* bitsize */ 260 FALSE, /* pc_relative */ 261 0, /* bitpos */ 262 complain_overflow_unsigned, /* complain_on_overflow */ 263 sh_elf64_ignore_reloc, /* special_function */ 264 "R_SH_SWITCH8", /* name */ 265 FALSE, /* partial_inplace */ 266 0, /* src_mask */ 267 0, /* dst_mask */ 268 TRUE), /* pcrel_offset */ 269 270 /* GNU extension to record C++ vtable hierarchy */ 271 HOWTO (R_SH_GNU_VTINHERIT, /* type */ 272 0, /* rightshift */ 273 2, /* size (0 = byte, 1 = short, 2 = long) */ 274 0, /* bitsize */ 275 FALSE, /* pc_relative */ 276 0, /* bitpos */ 277 complain_overflow_dont, /* complain_on_overflow */ 278 NULL, /* special_function */ 279 "R_SH_GNU_VTINHERIT", /* name */ 280 FALSE, /* partial_inplace */ 281 0, /* src_mask */ 282 0, /* dst_mask */ 283 FALSE), /* pcrel_offset */ 284 285 /* GNU extension to record C++ vtable member usage */ 286 HOWTO (R_SH_GNU_VTENTRY, /* type */ 287 0, /* rightshift */ 288 2, /* size (0 = byte, 1 = short, 2 = long) */ 289 0, /* bitsize */ 290 FALSE, /* pc_relative */ 291 0, /* bitpos */ 292 complain_overflow_dont, /* complain_on_overflow */ 293 _bfd_elf_rel_vtable_reloc_fn, /* special_function */ 294 "R_SH_GNU_VTENTRY", /* name */ 295 FALSE, /* partial_inplace */ 296 0, /* src_mask */ 297 0, /* dst_mask */ 298 FALSE), /* pcrel_offset */ 299 300 /* For 32-bit sh, this is R_SH_LOOP_START. */ 301 EMPTY_HOWTO (36), 302 303 /* For 32-bit sh, this is R_SH_LOOP_END. */ 304 EMPTY_HOWTO (37), 305 306 EMPTY_HOWTO (38), 307 EMPTY_HOWTO (39), 308 EMPTY_HOWTO (40), 309 EMPTY_HOWTO (41), 310 EMPTY_HOWTO (42), 311 EMPTY_HOWTO (43), 312 EMPTY_HOWTO (44), 313 314 /* Used in SHLLI.L and SHLRI.L. */ 315 HOWTO (R_SH_DIR5U, /* type */ 316 0, /* rightshift */ 317 2, /* size (0 = byte, 1 = short, 2 = long) */ 318 5, /* bitsize */ 319 FALSE, /* pc_relative */ 320 10, /* bitpos */ 321 complain_overflow_unsigned, /* complain_on_overflow */ 322 bfd_elf_generic_reloc, /* special_function */ 323 "R_SH_DIR5U", /* name */ 324 FALSE, /* partial_inplace */ 325 0, /* src_mask */ 326 0xfc00, /* dst_mask */ 327 FALSE), /* pcrel_offset */ 328 329 /* Used in SHARI, SHLLI et al. */ 330 HOWTO (R_SH_DIR6U, /* type */ 331 0, /* rightshift */ 332 2, /* size (0 = byte, 1 = short, 2 = long) */ 333 6, /* bitsize */ 334 FALSE, /* pc_relative */ 335 10, /* bitpos */ 336 complain_overflow_unsigned, /* complain_on_overflow */ 337 bfd_elf_generic_reloc, /* special_function */ 338 "R_SH_DIR6U", /* name */ 339 FALSE, /* partial_inplace */ 340 0, /* src_mask */ 341 0xfc00, /* dst_mask */ 342 FALSE), /* pcrel_offset */ 343 344 /* Used in BxxI, LDHI.L et al. */ 345 HOWTO (R_SH_DIR6S, /* type */ 346 0, /* rightshift */ 347 2, /* size (0 = byte, 1 = short, 2 = long) */ 348 6, /* bitsize */ 349 FALSE, /* pc_relative */ 350 10, /* bitpos */ 351 complain_overflow_signed, /* complain_on_overflow */ 352 bfd_elf_generic_reloc, /* special_function */ 353 "R_SH_DIR6S", /* name */ 354 FALSE, /* partial_inplace */ 355 0, /* src_mask */ 356 0xfc00, /* dst_mask */ 357 FALSE), /* pcrel_offset */ 358 359 /* Used in ADDI, ANDI et al. */ 360 HOWTO (R_SH_DIR10S, /* type */ 361 0, /* rightshift */ 362 2, /* size (0 = byte, 1 = short, 2 = long) */ 363 10, /* bitsize */ 364 FALSE, /* pc_relative */ 365 10, /* bitpos */ 366 complain_overflow_signed, /* complain_on_overflow */ 367 bfd_elf_generic_reloc, /* special_function */ 368 "R_SH_DIR10S", /* name */ 369 FALSE, /* partial_inplace */ 370 0, /* src_mask */ 371 0xffc00, /* dst_mask */ 372 FALSE), /* pcrel_offset */ 373 374 /* Used in LD.UW, ST.W et al. */ 375 HOWTO (R_SH_DIR10SW, /* type */ 376 1, /* rightshift */ 377 2, /* size (0 = byte, 1 = short, 2 = long) */ 378 11, /* bitsize */ 379 FALSE, /* pc_relative */ 380 10, /* bitpos */ 381 complain_overflow_signed, /* complain_on_overflow */ 382 bfd_elf_generic_reloc, /* special_function */ 383 "R_SH_DIR10SW", /* name */ 384 FALSE, /* partial_inplace */ 385 0, /* src_mask */ 386 0xffc00, /* dst_mask */ 387 FALSE), /* pcrel_offset */ 388 389 /* Used in LD.L, FLD.S et al. */ 390 HOWTO (R_SH_DIR10SL, /* type */ 391 2, /* rightshift */ 392 2, /* size (0 = byte, 1 = short, 2 = long) */ 393 12, /* bitsize */ 394 FALSE, /* pc_relative */ 395 10, /* bitpos */ 396 complain_overflow_signed, /* complain_on_overflow */ 397 bfd_elf_generic_reloc, /* special_function */ 398 "R_SH_DIR10SL", /* name */ 399 FALSE, /* partial_inplace */ 400 0, /* src_mask */ 401 0xffc00, /* dst_mask */ 402 FALSE), /* pcrel_offset */ 403 404 /* Used in FLD.D, FST.P et al. */ 405 HOWTO (R_SH_DIR10SQ, /* type */ 406 3, /* rightshift */ 407 2, /* size (0 = byte, 1 = short, 2 = long) */ 408 13, /* bitsize */ 409 FALSE, /* pc_relative */ 410 10, /* bitpos */ 411 complain_overflow_signed, /* complain_on_overflow */ 412 bfd_elf_generic_reloc, /* special_function */ 413 "R_SH_DIR10SQ", /* name */ 414 FALSE, /* partial_inplace */ 415 0, /* src_mask */ 416 0xffc00, /* dst_mask */ 417 FALSE), /* pcrel_offset */ 418 419 EMPTY_HOWTO (52), 420 EMPTY_HOWTO (53), 421 EMPTY_HOWTO (54), 422 EMPTY_HOWTO (55), 423 EMPTY_HOWTO (56), 424 EMPTY_HOWTO (57), 425 EMPTY_HOWTO (58), 426 EMPTY_HOWTO (59), 427 EMPTY_HOWTO (60), 428 EMPTY_HOWTO (61), 429 EMPTY_HOWTO (62), 430 EMPTY_HOWTO (63), 431 EMPTY_HOWTO (64), 432 EMPTY_HOWTO (65), 433 EMPTY_HOWTO (66), 434 EMPTY_HOWTO (67), 435 EMPTY_HOWTO (68), 436 EMPTY_HOWTO (69), 437 EMPTY_HOWTO (70), 438 EMPTY_HOWTO (71), 439 EMPTY_HOWTO (72), 440 EMPTY_HOWTO (73), 441 EMPTY_HOWTO (74), 442 EMPTY_HOWTO (75), 443 EMPTY_HOWTO (76), 444 EMPTY_HOWTO (77), 445 EMPTY_HOWTO (78), 446 EMPTY_HOWTO (79), 447 EMPTY_HOWTO (80), 448 EMPTY_HOWTO (81), 449 EMPTY_HOWTO (82), 450 EMPTY_HOWTO (83), 451 EMPTY_HOWTO (84), 452 EMPTY_HOWTO (85), 453 EMPTY_HOWTO (86), 454 EMPTY_HOWTO (87), 455 EMPTY_HOWTO (88), 456 EMPTY_HOWTO (89), 457 EMPTY_HOWTO (90), 458 EMPTY_HOWTO (91), 459 EMPTY_HOWTO (92), 460 EMPTY_HOWTO (93), 461 EMPTY_HOWTO (94), 462 EMPTY_HOWTO (95), 463 EMPTY_HOWTO (96), 464 EMPTY_HOWTO (97), 465 EMPTY_HOWTO (98), 466 EMPTY_HOWTO (99), 467 EMPTY_HOWTO (100), 468 EMPTY_HOWTO (101), 469 EMPTY_HOWTO (102), 470 EMPTY_HOWTO (103), 471 EMPTY_HOWTO (104), 472 EMPTY_HOWTO (105), 473 EMPTY_HOWTO (106), 474 EMPTY_HOWTO (107), 475 EMPTY_HOWTO (108), 476 EMPTY_HOWTO (109), 477 EMPTY_HOWTO (110), 478 EMPTY_HOWTO (111), 479 EMPTY_HOWTO (112), 480 EMPTY_HOWTO (113), 481 EMPTY_HOWTO (114), 482 EMPTY_HOWTO (115), 483 EMPTY_HOWTO (116), 484 EMPTY_HOWTO (117), 485 EMPTY_HOWTO (118), 486 EMPTY_HOWTO (119), 487 EMPTY_HOWTO (120), 488 EMPTY_HOWTO (121), 489 EMPTY_HOWTO (122), 490 EMPTY_HOWTO (123), 491 EMPTY_HOWTO (124), 492 EMPTY_HOWTO (125), 493 EMPTY_HOWTO (126), 494 EMPTY_HOWTO (127), 495 EMPTY_HOWTO (128), 496 EMPTY_HOWTO (129), 497 EMPTY_HOWTO (130), 498 EMPTY_HOWTO (131), 499 EMPTY_HOWTO (132), 500 EMPTY_HOWTO (133), 501 EMPTY_HOWTO (134), 502 EMPTY_HOWTO (135), 503 EMPTY_HOWTO (136), 504 EMPTY_HOWTO (137), 505 EMPTY_HOWTO (138), 506 EMPTY_HOWTO (139), 507 EMPTY_HOWTO (140), 508 EMPTY_HOWTO (141), 509 EMPTY_HOWTO (142), 510 EMPTY_HOWTO (143), 511 EMPTY_HOWTO (144), 512 EMPTY_HOWTO (145), 513 EMPTY_HOWTO (146), 514 EMPTY_HOWTO (147), 515 EMPTY_HOWTO (148), 516 EMPTY_HOWTO (149), 517 EMPTY_HOWTO (150), 518 EMPTY_HOWTO (151), 519 EMPTY_HOWTO (152), 520 EMPTY_HOWTO (153), 521 EMPTY_HOWTO (154), 522 EMPTY_HOWTO (155), 523 EMPTY_HOWTO (156), 524 EMPTY_HOWTO (157), 525 EMPTY_HOWTO (158), 526 EMPTY_HOWTO (159), 527 528 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have 529 any dynamic linking support for 64-bit SH at present. */ 530 531 EMPTY_HOWTO (160), 532 EMPTY_HOWTO (161), 533 EMPTY_HOWTO (162), 534 EMPTY_HOWTO (163), 535 EMPTY_HOWTO (164), 536 EMPTY_HOWTO (165), 537 EMPTY_HOWTO (166), 538 EMPTY_HOWTO (167), 539 EMPTY_HOWTO (168), 540 541 /* Back to SH5 relocations. */ 542 /* Used in MOVI and SHORI (x & 65536). */ 543 HOWTO (R_SH_GOT_LOW16, /* type */ 544 0, /* rightshift */ 545 2, /* size (0 = byte, 1 = short, 2 = long) */ 546 64, /* bitsize */ 547 FALSE, /* pc_relative */ 548 10, /* bitpos */ 549 complain_overflow_dont, /* complain_on_overflow */ 550 bfd_elf_generic_reloc, /* special_function */ 551 "R_SH_GOT_LOW16", /* name */ 552 FALSE, /* partial_inplace */ 553 0, /* src_mask */ 554 0x3fffc00, /* dst_mask */ 555 FALSE), /* pcrel_offset */ 556 557 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 558 HOWTO (R_SH_GOT_MEDLOW16, /* type */ 559 16, /* rightshift */ 560 2, /* size (0 = byte, 1 = short, 2 = long) */ 561 64, /* bitsize */ 562 FALSE, /* pc_relative */ 563 10, /* bitpos */ 564 complain_overflow_dont, /* complain_on_overflow */ 565 bfd_elf_generic_reloc, /* special_function */ 566 "R_SH_GOT_MEDLOW16", /* name */ 567 FALSE, /* partial_inplace */ 568 0, /* src_mask */ 569 0x3fffc00, /* dst_mask */ 570 FALSE), /* pcrel_offset */ 571 572 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 573 HOWTO (R_SH_GOT_MEDHI16, /* type */ 574 32, /* rightshift */ 575 2, /* size (0 = byte, 1 = short, 2 = long) */ 576 64, /* bitsize */ 577 FALSE, /* pc_relative */ 578 10, /* bitpos */ 579 complain_overflow_dont, /* complain_on_overflow */ 580 bfd_elf_generic_reloc, /* special_function */ 581 "R_SH_GOT_MEDHI16", /* name */ 582 FALSE, /* partial_inplace */ 583 0, /* src_mask */ 584 0x3fffc00, /* dst_mask */ 585 FALSE), /* pcrel_offset */ 586 587 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 588 HOWTO (R_SH_GOT_HI16, /* type */ 589 48, /* rightshift */ 590 2, /* size (0 = byte, 1 = short, 2 = long) */ 591 64, /* bitsize */ 592 FALSE, /* pc_relative */ 593 10, /* bitpos */ 594 complain_overflow_dont, /* complain_on_overflow */ 595 bfd_elf_generic_reloc, /* special_function */ 596 "R_SH_GOT_HI16", /* name */ 597 FALSE, /* partial_inplace */ 598 0, /* src_mask */ 599 0x3fffc00, /* dst_mask */ 600 FALSE), /* pcrel_offset */ 601 602 /* Used in MOVI and SHORI (x & 65536). */ 603 HOWTO (R_SH_GOTPLT_LOW16, /* type */ 604 0, /* rightshift */ 605 2, /* size (0 = byte, 1 = short, 2 = long) */ 606 64, /* bitsize */ 607 FALSE, /* pc_relative */ 608 10, /* bitpos */ 609 complain_overflow_dont, /* complain_on_overflow */ 610 bfd_elf_generic_reloc, /* special_function */ 611 "R_SH_GOTPLT_LOW16", /* name */ 612 FALSE, /* partial_inplace */ 613 0, /* src_mask */ 614 0x3fffc00, /* dst_mask */ 615 FALSE), /* pcrel_offset */ 616 617 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 618 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */ 619 16, /* rightshift */ 620 2, /* size (0 = byte, 1 = short, 2 = long) */ 621 64, /* bitsize */ 622 FALSE, /* pc_relative */ 623 10, /* bitpos */ 624 complain_overflow_dont, /* complain_on_overflow */ 625 bfd_elf_generic_reloc, /* special_function */ 626 "R_SH_GOTPLT_MEDLOW16", /* name */ 627 FALSE, /* partial_inplace */ 628 0, /* src_mask */ 629 0x3fffc00, /* dst_mask */ 630 FALSE), /* pcrel_offset */ 631 632 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 633 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */ 634 32, /* rightshift */ 635 2, /* size (0 = byte, 1 = short, 2 = long) */ 636 64, /* bitsize */ 637 FALSE, /* pc_relative */ 638 10, /* bitpos */ 639 complain_overflow_dont, /* complain_on_overflow */ 640 bfd_elf_generic_reloc, /* special_function */ 641 "R_SH_GOTPLT_MEDHI16", /* name */ 642 FALSE, /* partial_inplace */ 643 0, /* src_mask */ 644 0x3fffc00, /* dst_mask */ 645 FALSE), /* pcrel_offset */ 646 647 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 648 HOWTO (R_SH_GOTPLT_HI16, /* type */ 649 48, /* rightshift */ 650 2, /* size (0 = byte, 1 = short, 2 = long) */ 651 64, /* bitsize */ 652 FALSE, /* pc_relative */ 653 10, /* bitpos */ 654 complain_overflow_dont, /* complain_on_overflow */ 655 bfd_elf_generic_reloc, /* special_function */ 656 "R_SH_GOTPLT_HI16", /* name */ 657 FALSE, /* partial_inplace */ 658 0, /* src_mask */ 659 0x3fffc00, /* dst_mask */ 660 FALSE), /* pcrel_offset */ 661 662 /* Used in MOVI and SHORI (x & 65536). */ 663 HOWTO (R_SH_PLT_LOW16, /* type */ 664 0, /* rightshift */ 665 2, /* size (0 = byte, 1 = short, 2 = long) */ 666 64, /* bitsize */ 667 TRUE, /* pc_relative */ 668 10, /* bitpos */ 669 complain_overflow_dont, /* complain_on_overflow */ 670 bfd_elf_generic_reloc, /* special_function */ 671 "R_SH_PLT_LOW16", /* name */ 672 FALSE, /* partial_inplace */ 673 0, /* src_mask */ 674 0x3fffc00, /* dst_mask */ 675 TRUE), /* pcrel_offset */ 676 677 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 678 HOWTO (R_SH_PLT_MEDLOW16, /* type */ 679 16, /* rightshift */ 680 2, /* size (0 = byte, 1 = short, 2 = long) */ 681 64, /* bitsize */ 682 TRUE, /* pc_relative */ 683 10, /* bitpos */ 684 complain_overflow_dont, /* complain_on_overflow */ 685 bfd_elf_generic_reloc, /* special_function */ 686 "R_SH_PLT_MEDLOW16", /* name */ 687 FALSE, /* partial_inplace */ 688 0, /* src_mask */ 689 0x3fffc00, /* dst_mask */ 690 TRUE), /* pcrel_offset */ 691 692 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 693 HOWTO (R_SH_PLT_MEDHI16, /* type */ 694 32, /* rightshift */ 695 2, /* size (0 = byte, 1 = short, 2 = long) */ 696 64, /* bitsize */ 697 TRUE, /* pc_relative */ 698 10, /* bitpos */ 699 complain_overflow_dont, /* complain_on_overflow */ 700 bfd_elf_generic_reloc, /* special_function */ 701 "R_SH_PLT_MEDHI16", /* name */ 702 FALSE, /* partial_inplace */ 703 0, /* src_mask */ 704 0x3fffc00, /* dst_mask */ 705 TRUE), /* pcrel_offset */ 706 707 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 708 HOWTO (R_SH_PLT_HI16, /* type */ 709 48, /* rightshift */ 710 2, /* size (0 = byte, 1 = short, 2 = long) */ 711 64, /* bitsize */ 712 TRUE, /* pc_relative */ 713 10, /* bitpos */ 714 complain_overflow_dont, /* complain_on_overflow */ 715 bfd_elf_generic_reloc, /* special_function */ 716 "R_SH_PLT_HI16", /* name */ 717 FALSE, /* partial_inplace */ 718 0, /* src_mask */ 719 0x3fffc00, /* dst_mask */ 720 TRUE), /* pcrel_offset */ 721 722 /* Used in MOVI and SHORI (x & 65536). */ 723 HOWTO (R_SH_GOTOFF_LOW16, /* type */ 724 0, /* rightshift */ 725 2, /* size (0 = byte, 1 = short, 2 = long) */ 726 64, /* bitsize */ 727 FALSE, /* pc_relative */ 728 10, /* bitpos */ 729 complain_overflow_dont, /* complain_on_overflow */ 730 bfd_elf_generic_reloc, /* special_function */ 731 "R_SH_GOTOFF_LOW16", /* name */ 732 FALSE, /* partial_inplace */ 733 0, /* src_mask */ 734 0x3fffc00, /* dst_mask */ 735 FALSE), /* pcrel_offset */ 736 737 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 738 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */ 739 16, /* rightshift */ 740 2, /* size (0 = byte, 1 = short, 2 = long) */ 741 64, /* bitsize */ 742 FALSE, /* pc_relative */ 743 10, /* bitpos */ 744 complain_overflow_dont, /* complain_on_overflow */ 745 bfd_elf_generic_reloc, /* special_function */ 746 "R_SH_GOTOFF_MEDLOW16", /* name */ 747 FALSE, /* partial_inplace */ 748 0, /* src_mask */ 749 0x3fffc00, /* dst_mask */ 750 FALSE), /* pcrel_offset */ 751 752 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 753 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */ 754 32, /* rightshift */ 755 2, /* size (0 = byte, 1 = short, 2 = long) */ 756 64, /* bitsize */ 757 FALSE, /* pc_relative */ 758 10, /* bitpos */ 759 complain_overflow_dont, /* complain_on_overflow */ 760 bfd_elf_generic_reloc, /* special_function */ 761 "R_SH_GOTOFF_MEDHI16", /* name */ 762 FALSE, /* partial_inplace */ 763 0, /* src_mask */ 764 0x3fffc00, /* dst_mask */ 765 FALSE), /* pcrel_offset */ 766 767 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 768 HOWTO (R_SH_GOTOFF_HI16, /* type */ 769 48, /* rightshift */ 770 2, /* size (0 = byte, 1 = short, 2 = long) */ 771 64, /* bitsize */ 772 FALSE, /* pc_relative */ 773 10, /* bitpos */ 774 complain_overflow_dont, /* complain_on_overflow */ 775 bfd_elf_generic_reloc, /* special_function */ 776 "R_SH_GOTOFF_HI16", /* name */ 777 FALSE, /* partial_inplace */ 778 0, /* src_mask */ 779 0x3fffc00, /* dst_mask */ 780 FALSE), /* pcrel_offset */ 781 782 /* Used in MOVI and SHORI (x & 65536). */ 783 HOWTO (R_SH_GOTPC_LOW16, /* type */ 784 0, /* rightshift */ 785 2, /* size (0 = byte, 1 = short, 2 = long) */ 786 64, /* bitsize */ 787 TRUE, /* pc_relative */ 788 10, /* bitpos */ 789 complain_overflow_dont, /* complain_on_overflow */ 790 bfd_elf_generic_reloc, /* special_function */ 791 "R_SH_GOTPC_LOW16", /* name */ 792 FALSE, /* partial_inplace */ 793 0, /* src_mask */ 794 0x3fffc00, /* dst_mask */ 795 TRUE), /* pcrel_offset */ 796 797 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 798 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */ 799 16, /* rightshift */ 800 2, /* size (0 = byte, 1 = short, 2 = long) */ 801 64, /* bitsize */ 802 TRUE, /* pc_relative */ 803 10, /* bitpos */ 804 complain_overflow_dont, /* complain_on_overflow */ 805 bfd_elf_generic_reloc, /* special_function */ 806 "R_SH_GOTPC_MEDLOW16", /* name */ 807 FALSE, /* partial_inplace */ 808 0, /* src_mask */ 809 0x3fffc00, /* dst_mask */ 810 TRUE), /* pcrel_offset */ 811 812 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 813 HOWTO (R_SH_GOTPC_MEDHI16, /* type */ 814 32, /* rightshift */ 815 2, /* size (0 = byte, 1 = short, 2 = long) */ 816 64, /* bitsize */ 817 TRUE, /* pc_relative */ 818 10, /* bitpos */ 819 complain_overflow_dont, /* complain_on_overflow */ 820 bfd_elf_generic_reloc, /* special_function */ 821 "R_SH_GOTPC_MEDHI16", /* name */ 822 FALSE, /* partial_inplace */ 823 0, /* src_mask */ 824 0x3fffc00, /* dst_mask */ 825 TRUE), /* pcrel_offset */ 826 827 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 828 HOWTO (R_SH_GOTPC_HI16, /* type */ 829 48, /* rightshift */ 830 2, /* size (0 = byte, 1 = short, 2 = long) */ 831 64, /* bitsize */ 832 TRUE, /* pc_relative */ 833 10, /* bitpos */ 834 complain_overflow_dont, /* complain_on_overflow */ 835 bfd_elf_generic_reloc, /* special_function */ 836 "R_SH_GOTPC_HI16", /* name */ 837 FALSE, /* partial_inplace */ 838 0, /* src_mask */ 839 0x3fffc00, /* dst_mask */ 840 TRUE), /* pcrel_offset */ 841 842 /* Used in LD.L, FLD.S et al. */ 843 HOWTO (R_SH_GOT10BY4, /* type */ 844 2, /* rightshift */ 845 2, /* size (0 = byte, 1 = short, 2 = long) */ 846 12, /* bitsize */ 847 FALSE, /* pc_relative */ 848 10, /* bitpos */ 849 complain_overflow_signed, /* complain_on_overflow */ 850 bfd_elf_generic_reloc, /* special_function */ 851 "R_SH_GOT10BY4", /* name */ 852 FALSE, /* partial_inplace */ 853 0, /* src_mask */ 854 0xffc00, /* dst_mask */ 855 FALSE), /* pcrel_offset */ 856 857 /* Used in LD.L, FLD.S et al. */ 858 HOWTO (R_SH_GOTPLT10BY4, /* type */ 859 2, /* rightshift */ 860 2, /* size (0 = byte, 1 = short, 2 = long) */ 861 12, /* bitsize */ 862 FALSE, /* pc_relative */ 863 10, /* bitpos */ 864 complain_overflow_signed, /* complain_on_overflow */ 865 bfd_elf_generic_reloc, /* special_function */ 866 "R_SH_GOTPLT10BY4", /* name */ 867 FALSE, /* partial_inplace */ 868 0, /* src_mask */ 869 0xffc00, /* dst_mask */ 870 FALSE), /* pcrel_offset */ 871 872 /* Used in FLD.D, FST.P et al. */ 873 HOWTO (R_SH_GOT10BY8, /* type */ 874 3, /* rightshift */ 875 2, /* size (0 = byte, 1 = short, 2 = long) */ 876 13, /* bitsize */ 877 FALSE, /* pc_relative */ 878 10, /* bitpos */ 879 complain_overflow_signed, /* complain_on_overflow */ 880 bfd_elf_generic_reloc, /* special_function */ 881 "R_SH_GOT10BY8", /* name */ 882 FALSE, /* partial_inplace */ 883 0, /* src_mask */ 884 0xffc00, /* dst_mask */ 885 FALSE), /* pcrel_offset */ 886 887 /* Used in FLD.D, FST.P et al. */ 888 HOWTO (R_SH_GOTPLT10BY8, /* type */ 889 3, /* rightshift */ 890 2, /* size (0 = byte, 1 = short, 2 = long) */ 891 13, /* bitsize */ 892 FALSE, /* pc_relative */ 893 10, /* bitpos */ 894 complain_overflow_signed, /* complain_on_overflow */ 895 bfd_elf_generic_reloc, /* special_function */ 896 "R_SH_GOTPLT10BY8", /* name */ 897 FALSE, /* partial_inplace */ 898 0, /* src_mask */ 899 0xffc00, /* dst_mask */ 900 FALSE), /* pcrel_offset */ 901 902 HOWTO (R_SH_COPY64, /* type */ 903 0, /* rightshift */ 904 4, /* size (0 = byte, 1 = short, 2 = long) */ 905 64, /* bitsize */ 906 FALSE, /* pc_relative */ 907 0, /* bitpos */ 908 complain_overflow_dont, /* complain_on_overflow */ 909 bfd_elf_generic_reloc, /* special_function */ 910 "R_SH_COPY64", /* name */ 911 FALSE, /* partial_inplace */ 912 0, /* src_mask */ 913 ((bfd_vma) 0) - 1, /* dst_mask */ 914 FALSE), /* pcrel_offset */ 915 916 HOWTO (R_SH_GLOB_DAT64, /* type */ 917 0, /* rightshift */ 918 4, /* size (0 = byte, 1 = short, 2 = long) */ 919 64, /* bitsize */ 920 FALSE, /* pc_relative */ 921 0, /* bitpos */ 922 complain_overflow_dont, /* complain_on_overflow */ 923 bfd_elf_generic_reloc, /* special_function */ 924 "R_SH_GLOB_DAT64", /* name */ 925 FALSE, /* partial_inplace */ 926 0, /* src_mask */ 927 ((bfd_vma) 0) - 1, /* dst_mask */ 928 FALSE), /* pcrel_offset */ 929 930 HOWTO (R_SH_JMP_SLOT64, /* type */ 931 0, /* rightshift */ 932 4, /* size (0 = byte, 1 = short, 2 = long) */ 933 64, /* bitsize */ 934 FALSE, /* pc_relative */ 935 0, /* bitpos */ 936 complain_overflow_dont, /* complain_on_overflow */ 937 bfd_elf_generic_reloc, /* special_function */ 938 "R_SH_JMP_SLOT64", /* name */ 939 FALSE, /* partial_inplace */ 940 0, /* src_mask */ 941 ((bfd_vma) 0) - 1, /* dst_mask */ 942 FALSE), /* pcrel_offset */ 943 944 HOWTO (R_SH_RELATIVE64, /* type */ 945 0, /* rightshift */ 946 4, /* size (0 = byte, 1 = short, 2 = long) */ 947 64, /* bitsize */ 948 FALSE, /* pc_relative */ 949 0, /* bitpos */ 950 complain_overflow_dont, /* complain_on_overflow */ 951 bfd_elf_generic_reloc, /* special_function */ 952 "R_SH_RELATIVE64", /* name */ 953 FALSE, /* partial_inplace */ 954 0, /* src_mask */ 955 ((bfd_vma) 0) - 1, /* dst_mask */ 956 FALSE), /* pcrel_offset */ 957 958 EMPTY_HOWTO (197), 959 EMPTY_HOWTO (198), 960 EMPTY_HOWTO (199), 961 EMPTY_HOWTO (200), 962 EMPTY_HOWTO (201), 963 EMPTY_HOWTO (202), 964 EMPTY_HOWTO (203), 965 EMPTY_HOWTO (204), 966 EMPTY_HOWTO (205), 967 EMPTY_HOWTO (206), 968 EMPTY_HOWTO (207), 969 EMPTY_HOWTO (208), 970 EMPTY_HOWTO (209), 971 EMPTY_HOWTO (210), 972 EMPTY_HOWTO (211), 973 EMPTY_HOWTO (212), 974 EMPTY_HOWTO (213), 975 EMPTY_HOWTO (214), 976 EMPTY_HOWTO (215), 977 EMPTY_HOWTO (216), 978 EMPTY_HOWTO (217), 979 EMPTY_HOWTO (218), 980 EMPTY_HOWTO (219), 981 EMPTY_HOWTO (220), 982 EMPTY_HOWTO (221), 983 EMPTY_HOWTO (222), 984 EMPTY_HOWTO (223), 985 EMPTY_HOWTO (224), 986 EMPTY_HOWTO (225), 987 EMPTY_HOWTO (226), 988 EMPTY_HOWTO (227), 989 EMPTY_HOWTO (228), 990 EMPTY_HOWTO (229), 991 EMPTY_HOWTO (230), 992 EMPTY_HOWTO (231), 993 EMPTY_HOWTO (232), 994 EMPTY_HOWTO (233), 995 EMPTY_HOWTO (234), 996 EMPTY_HOWTO (235), 997 EMPTY_HOWTO (236), 998 EMPTY_HOWTO (237), 999 EMPTY_HOWTO (238), 1000 EMPTY_HOWTO (239), 1001 EMPTY_HOWTO (240), 1002 EMPTY_HOWTO (241), 1003 1004 /* Relocations for SHmedia code. None of these are partial_inplace or 1005 use the field being relocated. */ 1006 1007 /* The assembler will generate this reloc before a block of SHmedia 1008 instructions. A section should be processed as assuming it contains 1009 data, unless this reloc is seen. Note that a block of SHcompact 1010 instructions are instead preceded by R_SH_CODE. 1011 This is currently not implemented, but should be used for SHmedia 1012 linker relaxation. */ 1013 HOWTO (R_SH_SHMEDIA_CODE, /* type */ 1014 0, /* rightshift */ 1015 1, /* size (0 = byte, 1 = short, 2 = long) */ 1016 0, /* bitsize */ 1017 FALSE, /* pc_relative */ 1018 0, /* bitpos */ 1019 complain_overflow_unsigned, /* complain_on_overflow */ 1020 sh_elf64_ignore_reloc, /* special_function */ 1021 "R_SH_SHMEDIA_CODE", /* name */ 1022 FALSE, /* partial_inplace */ 1023 0, /* src_mask */ 1024 0, /* dst_mask */ 1025 FALSE), /* pcrel_offset */ 1026 1027 /* The assembler will generate this reloc at a PTA or PTB instruction, 1028 and the linker checks the right type of target, or changes a PTA to a 1029 PTB, if the original insn was PT. */ 1030 HOWTO (R_SH_PT_16, /* type */ 1031 2, /* rightshift */ 1032 2, /* size (0 = byte, 1 = short, 2 = long) */ 1033 18, /* bitsize */ 1034 TRUE, /* pc_relative */ 1035 10, /* bitpos */ 1036 complain_overflow_signed, /* complain_on_overflow */ 1037 bfd_elf_generic_reloc, /* special_function */ 1038 "R_SH_PT_16", /* name */ 1039 FALSE, /* partial_inplace */ 1040 0, /* src_mask */ 1041 0x3fffc00, /* dst_mask */ 1042 TRUE), /* pcrel_offset */ 1043 1044 /* Used in unexpanded MOVI. */ 1045 HOWTO (R_SH_IMMS16, /* type */ 1046 0, /* rightshift */ 1047 2, /* size (0 = byte, 1 = short, 2 = long) */ 1048 16, /* bitsize */ 1049 FALSE, /* pc_relative */ 1050 10, /* bitpos */ 1051 complain_overflow_signed, /* complain_on_overflow */ 1052 bfd_elf_generic_reloc, /* special_function */ 1053 "R_SH_IMMS16", /* name */ 1054 FALSE, /* partial_inplace */ 1055 0, /* src_mask */ 1056 0x3fffc00, /* dst_mask */ 1057 FALSE), /* pcrel_offset */ 1058 1059 /* Used in SHORI. */ 1060 HOWTO (R_SH_IMMU16, /* type */ 1061 0, /* rightshift */ 1062 2, /* size (0 = byte, 1 = short, 2 = long) */ 1063 16, /* bitsize */ 1064 FALSE, /* pc_relative */ 1065 10, /* bitpos */ 1066 complain_overflow_unsigned, /* complain_on_overflow */ 1067 bfd_elf_generic_reloc, /* special_function */ 1068 "R_SH_IMMU16", /* name */ 1069 FALSE, /* partial_inplace */ 1070 0, /* src_mask */ 1071 0x3fffc00, /* dst_mask */ 1072 FALSE), /* pcrel_offset */ 1073 1074 /* Used in MOVI and SHORI (x & 65536). */ 1075 HOWTO (R_SH_IMM_LOW16, /* type */ 1076 0, /* rightshift */ 1077 2, /* size (0 = byte, 1 = short, 2 = long) */ 1078 64, /* bitsize */ 1079 FALSE, /* pc_relative */ 1080 10, /* bitpos */ 1081 complain_overflow_dont, /* complain_on_overflow */ 1082 bfd_elf_generic_reloc, /* special_function */ 1083 "R_SH_IMM_LOW16", /* name */ 1084 FALSE, /* partial_inplace */ 1085 0, /* src_mask */ 1086 0x3fffc00, /* dst_mask */ 1087 FALSE), /* pcrel_offset */ 1088 1089 /* Used in MOVI and SHORI ((x - $) & 65536). */ 1090 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */ 1091 0, /* rightshift */ 1092 2, /* size (0 = byte, 1 = short, 2 = long) */ 1093 64, /* bitsize */ 1094 TRUE, /* pc_relative */ 1095 10, /* bitpos */ 1096 complain_overflow_dont, /* complain_on_overflow */ 1097 bfd_elf_generic_reloc, /* special_function */ 1098 "R_SH_IMM_LOW16_PCREL", /* name */ 1099 FALSE, /* partial_inplace */ 1100 0, /* src_mask */ 1101 0x3fffc00, /* dst_mask */ 1102 TRUE), /* pcrel_offset */ 1103 1104 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 1105 HOWTO (R_SH_IMM_MEDLOW16, /* type */ 1106 16, /* rightshift */ 1107 2, /* size (0 = byte, 1 = short, 2 = long) */ 1108 64, /* bitsize */ 1109 FALSE, /* pc_relative */ 1110 10, /* bitpos */ 1111 complain_overflow_dont, /* complain_on_overflow */ 1112 bfd_elf_generic_reloc, /* special_function */ 1113 "R_SH_IMM_MEDLOW16", /* name */ 1114 FALSE, /* partial_inplace */ 1115 0, /* src_mask */ 1116 0x3fffc00, /* dst_mask */ 1117 FALSE), /* pcrel_offset */ 1118 1119 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */ 1120 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */ 1121 16, /* rightshift */ 1122 2, /* size (0 = byte, 1 = short, 2 = long) */ 1123 64, /* bitsize */ 1124 TRUE, /* pc_relative */ 1125 10, /* bitpos */ 1126 complain_overflow_dont, /* complain_on_overflow */ 1127 bfd_elf_generic_reloc, /* special_function */ 1128 "R_SH_IMM_MEDLOW16_PCREL", /* name */ 1129 FALSE, /* partial_inplace */ 1130 0, /* src_mask */ 1131 0x3fffc00, /* dst_mask */ 1132 TRUE), /* pcrel_offset */ 1133 1134 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 1135 HOWTO (R_SH_IMM_MEDHI16, /* type */ 1136 32, /* rightshift */ 1137 2, /* size (0 = byte, 1 = short, 2 = long) */ 1138 64, /* bitsize */ 1139 FALSE, /* pc_relative */ 1140 10, /* bitpos */ 1141 complain_overflow_dont, /* complain_on_overflow */ 1142 bfd_elf_generic_reloc, /* special_function */ 1143 "R_SH_IMM_MEDHI16", /* name */ 1144 FALSE, /* partial_inplace */ 1145 0, /* src_mask */ 1146 0x3fffc00, /* dst_mask */ 1147 FALSE), /* pcrel_offset */ 1148 1149 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */ 1150 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */ 1151 32, /* rightshift */ 1152 2, /* size (0 = byte, 1 = short, 2 = long) */ 1153 64, /* bitsize */ 1154 TRUE, /* pc_relative */ 1155 10, /* bitpos */ 1156 complain_overflow_dont, /* complain_on_overflow */ 1157 bfd_elf_generic_reloc, /* special_function */ 1158 "R_SH_IMM_MEDHI16_PCREL", /* name */ 1159 FALSE, /* partial_inplace */ 1160 0, /* src_mask */ 1161 0x3fffc00, /* dst_mask */ 1162 TRUE), /* pcrel_offset */ 1163 1164 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 1165 HOWTO (R_SH_IMM_HI16, /* type */ 1166 48, /* rightshift */ 1167 2, /* size (0 = byte, 1 = short, 2 = long) */ 1168 64, /* bitsize */ 1169 FALSE, /* pc_relative */ 1170 10, /* bitpos */ 1171 complain_overflow_dont, /* complain_on_overflow */ 1172 bfd_elf_generic_reloc, /* special_function */ 1173 "R_SH_IMM_HI16", /* name */ 1174 FALSE, /* partial_inplace */ 1175 0, /* src_mask */ 1176 0x3fffc00, /* dst_mask */ 1177 FALSE), /* pcrel_offset */ 1178 1179 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */ 1180 HOWTO (R_SH_IMM_HI16_PCREL, /* type */ 1181 48, /* rightshift */ 1182 2, /* size (0 = byte, 1 = short, 2 = long) */ 1183 64, /* bitsize */ 1184 TRUE, /* pc_relative */ 1185 10, /* bitpos */ 1186 complain_overflow_dont, /* complain_on_overflow */ 1187 bfd_elf_generic_reloc, /* special_function */ 1188 "R_SH_IMM_HI16_PCREL", /* name */ 1189 FALSE, /* partial_inplace */ 1190 0, /* src_mask */ 1191 0x3fffc00, /* dst_mask */ 1192 TRUE), /* pcrel_offset */ 1193 1194 /* For the .uaquad pseudo. */ 1195 HOWTO (R_SH_64, /* type */ 1196 0, /* rightshift */ 1197 4, /* size (0 = byte, 1 = short, 2 = long) */ 1198 64, /* bitsize */ 1199 FALSE, /* pc_relative */ 1200 0, /* bitpos */ 1201 complain_overflow_dont, /* complain_on_overflow */ 1202 bfd_elf_generic_reloc, /* special_function */ 1203 "R_SH_64", /* name */ 1204 FALSE, /* partial_inplace */ 1205 0, /* src_mask */ 1206 ((bfd_vma) 0) - 1, /* dst_mask */ 1207 FALSE), /* pcrel_offset */ 1208 1209 /* For the .uaquad pseudo, (x - $). */ 1210 HOWTO (R_SH_64_PCREL, /* type */ 1211 48, /* rightshift */ 1212 2, /* size (0 = byte, 1 = short, 2 = long) */ 1213 64, /* bitsize */ 1214 TRUE, /* pc_relative */ 1215 10, /* bitpos */ 1216 complain_overflow_dont, /* complain_on_overflow */ 1217 bfd_elf_generic_reloc, /* special_function */ 1218 "R_SH_64_PCREL", /* name */ 1219 FALSE, /* partial_inplace */ 1220 0, /* src_mask */ 1221 ((bfd_vma) 0) - 1, /* dst_mask */ 1222 TRUE), /* pcrel_offset */ 1223 1224}; 1225 1226/* This function is used for relocs which are only used for relaxing, 1227 which the linker should otherwise ignore. */ 1228 1229static bfd_reloc_status_type 1230sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, 1231 asymbol *symbol ATTRIBUTE_UNUSED, 1232 void *data ATTRIBUTE_UNUSED, asection *input_section, 1233 bfd *output_bfd, 1234 char **error_message ATTRIBUTE_UNUSED) 1235{ 1236 if (output_bfd != NULL) 1237 reloc_entry->address += input_section->output_offset; 1238 return bfd_reloc_ok; 1239} 1240 1241/* This function is used for normal relocs. This used to be like the COFF 1242 function, and is almost certainly incorrect for other ELF targets. 1243 1244 See sh_elf_reloc in elf32-sh.c for the original. */ 1245 1246static bfd_reloc_status_type 1247sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in, 1248 void *data, asection *input_section, bfd *output_bfd, 1249 char **error_message ATTRIBUTE_UNUSED) 1250{ 1251 unsigned long insn; 1252 bfd_vma sym_value; 1253 enum elf_sh_reloc_type r_type; 1254 bfd_vma addr = reloc_entry->address; 1255 bfd_byte *hit_data = addr + (bfd_byte *) data; 1256 1257 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; 1258 1259 if (output_bfd != NULL) 1260 { 1261 /* Partial linking--do nothing. */ 1262 reloc_entry->address += input_section->output_offset; 1263 return bfd_reloc_ok; 1264 } 1265 1266 if (symbol_in != NULL 1267 && bfd_is_und_section (symbol_in->section)) 1268 return bfd_reloc_undefined; 1269 1270 if (bfd_is_com_section (symbol_in->section)) 1271 sym_value = 0; 1272 else 1273 sym_value = (symbol_in->value + 1274 symbol_in->section->output_section->vma + 1275 symbol_in->section->output_offset); 1276 1277 switch (r_type) 1278 { 1279 case R_SH_DIR32: 1280 insn = bfd_get_32 (abfd, hit_data); 1281 insn += sym_value + reloc_entry->addend; 1282 bfd_put_32 (abfd, insn, hit_data); 1283 break; 1284 1285 default: 1286 abort (); 1287 break; 1288 } 1289 1290 return bfd_reloc_ok; 1291} 1292 1293/* This structure is used to map BFD reloc codes to SH ELF relocs. */ 1294 1295struct elf_reloc_map 1296{ 1297 bfd_reloc_code_real_type bfd_reloc_val; 1298 unsigned char elf_reloc_val; 1299}; 1300 1301/* An array mapping BFD reloc codes to SH ELF relocs. */ 1302 1303static const struct elf_reloc_map sh64_reloc_map[] = 1304{ 1305 { BFD_RELOC_NONE, R_SH_NONE }, 1306 { BFD_RELOC_32, R_SH_DIR32 }, 1307 { BFD_RELOC_CTOR, R_SH_DIR32 }, 1308 { BFD_RELOC_32_PCREL, R_SH_REL32 }, 1309 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, 1310 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, 1311 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, 1312 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, 1313 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, 1314 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 }, 1315 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 }, 1316 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 }, 1317 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 }, 1318 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 }, 1319 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 }, 1320 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 }, 1321 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 }, 1322 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 }, 1323 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 }, 1324 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 }, 1325 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 }, 1326 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 }, 1327 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 }, 1328 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 }, 1329 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 }, 1330 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 }, 1331 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 }, 1332 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 }, 1333 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 }, 1334 { BFD_RELOC_SH_COPY64, R_SH_COPY64 }, 1335 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 }, 1336 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 }, 1337 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 }, 1338 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 }, 1339 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 }, 1340 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 }, 1341 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 }, 1342 { BFD_RELOC_SH_PT_16, R_SH_PT_16 }, 1343 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE }, 1344 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U }, 1345 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S }, 1346 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U }, 1347 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S }, 1348 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW }, 1349 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL }, 1350 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ }, 1351 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 }, 1352 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 }, 1353 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 }, 1354 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL }, 1355 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 }, 1356 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL }, 1357 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 }, 1358 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL }, 1359 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 }, 1360 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL }, 1361 { BFD_RELOC_64, R_SH_64 }, 1362 { BFD_RELOC_64_PCREL, R_SH_64_PCREL }, 1363}; 1364 1365/* Given a BFD reloc code, return the howto structure for the 1366 corresponding SH ELf reloc. */ 1367 1368static reloc_howto_type * 1369sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1370 bfd_reloc_code_real_type code) 1371{ 1372 unsigned int i; 1373 1374 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++) 1375 { 1376 if (sh64_reloc_map[i].bfd_reloc_val == code) 1377 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val]; 1378 } 1379 1380 return NULL; 1381} 1382 1383static reloc_howto_type * 1384sh_elf64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1385 const char *r_name) 1386{ 1387 unsigned int i; 1388 1389 for (i = 0; 1390 i < sizeof (sh_elf64_howto_table) / sizeof (sh_elf64_howto_table[0]); 1391 i++) 1392 if (sh_elf64_howto_table[i].name != NULL 1393 && strcasecmp (sh_elf64_howto_table[i].name, r_name) == 0) 1394 return &sh_elf64_howto_table[i]; 1395 1396 return NULL; 1397} 1398 1399/* Given an ELF reloc, fill in the howto field of a relent. 1400 1401 See sh_elf_info_to_howto in elf32-sh.c for the original. */ 1402 1403static void 1404sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, 1405 Elf_Internal_Rela *dst) 1406{ 1407 unsigned int r; 1408 1409 r = ELF64_R_TYPE (dst->r_info); 1410 1411 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL); 1412 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC); 1413 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2); 1414 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32); 1415 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4); 1416 1417 cache_ptr->howto = &sh_elf64_howto_table[r]; 1418} 1419 1420/* Relocate an SH ELF section. 1421 1422 See sh_elf_info_to_howto in elf32-sh.c for the original. */ 1423 1424static bfd_boolean 1425sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, 1426 struct bfd_link_info *info, bfd *input_bfd, 1427 asection *input_section, bfd_byte *contents, 1428 Elf_Internal_Rela *relocs, 1429 Elf_Internal_Sym *local_syms, 1430 asection **local_sections) 1431{ 1432 Elf_Internal_Shdr *symtab_hdr; 1433 struct elf_link_hash_entry **sym_hashes; 1434 Elf_Internal_Rela *rel, *relend; 1435 bfd_vma *local_got_offsets; 1436 asection *sgot; 1437 asection *sgotplt; 1438 asection *splt; 1439 asection *sreloc; 1440 bfd_vma disp, dropped; 1441 1442 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 1443 sym_hashes = elf_sym_hashes (input_bfd); 1444 local_got_offsets = elf_local_got_offsets (input_bfd); 1445 1446 sreloc = NULL; 1447 1448 rel = relocs; 1449 relend = relocs + input_section->reloc_count; 1450 for (; rel < relend; rel++) 1451 { 1452 int r_type; 1453 reloc_howto_type *howto; 1454 unsigned long r_symndx; 1455 Elf_Internal_Sym *sym; 1456 asection *sec; 1457 struct elf_link_hash_entry *h; 1458 bfd_vma relocation; 1459 bfd_vma addend = (bfd_vma)0; 1460 bfd_reloc_status_type r; 1461 int seen_stt_datalabel = 0; 1462 1463 r_symndx = ELF64_R_SYM (rel->r_info); 1464 1465 r_type = ELF64_R_TYPE (rel->r_info); 1466 1467 if (r_type == (int) R_SH_NONE) 1468 continue; 1469 1470 if (r_type < 0 1471 || r_type > R_SH_64_PCREL 1472 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC 1473 && r_type <= (int) R_SH_LAST_INVALID_RELOC) 1474 || (r_type >= (int) R_SH_DIR8WPN 1475 && r_type <= (int) R_SH_LAST_INVALID_RELOC) 1476 || (r_type >= (int) R_SH_GNU_VTINHERIT 1477 && r_type <= (int) R_SH_PSHL) 1478 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2 1479 && r_type <= R_SH_GOTPLT32) 1480 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 1481 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)) 1482 { 1483 bfd_set_error (bfd_error_bad_value); 1484 return FALSE; 1485 } 1486 1487 howto = sh_elf64_howto_table + r_type; 1488 1489 h = NULL; 1490 sym = NULL; 1491 sec = NULL; 1492 relocation = 0; 1493 if (r_symndx < symtab_hdr->sh_info) 1494 { 1495 sym = local_syms + r_symndx; 1496 sec = local_sections[r_symndx]; 1497 relocation = ((sec->output_section->vma 1498 + sec->output_offset 1499 + sym->st_value) 1500 | ((sym->st_other & STO_SH5_ISA32) != 0)); 1501 1502 /* A local symbol never has STO_SH5_ISA32, so we don't need 1503 datalabel processing here. Make sure this does not change 1504 without notice. */ 1505 if ((sym->st_other & STO_SH5_ISA32) != 0) 1506 (*info->callbacks->reloc_dangerous) 1507 (info, 1508 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"), 1509 input_bfd, input_section, rel->r_offset); 1510 1511 if (sec != NULL && discarded_section (sec)) 1512 /* Handled below. */ 1513 ; 1514 else if (bfd_link_relocatable (info)) 1515 { 1516 /* This is a relocatable link. We don't have to change 1517 anything, unless the reloc is against a section symbol, 1518 in which case we have to adjust according to where the 1519 section symbol winds up in the output section. */ 1520 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) 1521 goto final_link_relocate; 1522 1523 continue; 1524 } 1525 else if (! howto->partial_inplace) 1526 { 1527 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); 1528 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0); 1529 } 1530 else if ((sec->flags & SEC_MERGE) 1531 && ELF_ST_TYPE (sym->st_info) == STT_SECTION) 1532 { 1533 asection *msec; 1534 1535 if (howto->rightshift || howto->src_mask != 0xffffffff) 1536 { 1537 _bfd_error_handler 1538 /* xgettext:c-format */ 1539 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), 1540 input_bfd, input_section, 1541 (long) rel->r_offset, howto->name); 1542 return FALSE; 1543 } 1544 1545 addend = bfd_get_32 (input_bfd, contents + rel->r_offset); 1546 msec = sec; 1547 addend = 1548 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) 1549 - relocation; 1550 addend += msec->output_section->vma + msec->output_offset; 1551 bfd_put_32 (input_bfd, addend, contents + rel->r_offset); 1552 addend = 0; 1553 } 1554 } 1555 else 1556 { 1557 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */ 1558 1559 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 1560 while (h->root.type == bfd_link_hash_indirect 1561 || h->root.type == bfd_link_hash_warning) 1562 { 1563 /* If the reference passes a symbol marked with 1564 STT_DATALABEL, then any STO_SH5_ISA32 on the final value 1565 doesn't count. */ 1566 seen_stt_datalabel |= h->type == STT_DATALABEL; 1567 h = (struct elf_link_hash_entry *) h->root.u.i.link; 1568 } 1569 1570 if (h->root.type == bfd_link_hash_defined 1571 || h->root.type == bfd_link_hash_defweak) 1572 { 1573 sec = h->root.u.def.section; 1574 /* In these cases, we don't need the relocation value. 1575 We check specially because in some obscure cases 1576 sec->output_section will be NULL. */ 1577 if (r_type == R_SH_GOTPC_LOW16 1578 || r_type == R_SH_GOTPC_MEDLOW16 1579 || r_type == R_SH_GOTPC_MEDHI16 1580 || r_type == R_SH_GOTPC_HI16 1581 || ((r_type == R_SH_PLT_LOW16 1582 || r_type == R_SH_PLT_MEDLOW16 1583 || r_type == R_SH_PLT_MEDHI16 1584 || r_type == R_SH_PLT_HI16) 1585 && h->plt.offset != (bfd_vma) -1) 1586 || ((r_type == R_SH_GOT_LOW16 1587 || r_type == R_SH_GOT_MEDLOW16 1588 || r_type == R_SH_GOT_MEDHI16 1589 || r_type == R_SH_GOT_HI16) 1590 && elf_hash_table (info)->dynamic_sections_created 1591 && (! bfd_link_pic (info) 1592 || (! info->symbolic && h->dynindx != -1) 1593 || !h->def_regular)) 1594 /* The cases above are those in which relocation is 1595 overwritten in the switch block below. The cases 1596 below are those in which we must defer relocation 1597 to run-time, because we can't resolve absolute 1598 addresses when creating a shared library. */ 1599 || (bfd_link_pic (info) 1600 && ((! info->symbolic && h->dynindx != -1) 1601 || !h->def_regular) 1602 && ((r_type == R_SH_64 1603 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1604 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)) 1605 || r_type == R_SH_64_PCREL) 1606 && ((input_section->flags & SEC_ALLOC) != 0 1607 /* DWARF will emit R_SH_DIR32 relocations in its 1608 sections against symbols defined externally 1609 in shared libraries. We can't do anything 1610 with them here. */ 1611 || (input_section->flags & SEC_DEBUGGING) != 0)) 1612 /* Dynamic relocs are not propagated for SEC_DEBUGGING 1613 sections because such sections are not SEC_ALLOC and 1614 thus ld.so will not process them. */ 1615 || (sec->output_section == NULL 1616 && ((input_section->flags & SEC_DEBUGGING) != 0 1617 && h->def_dynamic))) 1618 ; 1619 else if (sec->output_section != NULL) 1620 relocation = ((h->root.u.def.value 1621 + sec->output_section->vma 1622 + sec->output_offset) 1623 /* A STO_SH5_ISA32 causes a "bitor 1" to the 1624 symbol value, unless we've seen 1625 STT_DATALABEL on the way to it. */ 1626 | ((h->other & STO_SH5_ISA32) != 0 1627 && ! seen_stt_datalabel)); 1628 else if (!bfd_link_relocatable (info) 1629 && (_bfd_elf_section_offset (output_bfd, info, 1630 input_section, 1631 rel->r_offset) 1632 != (bfd_vma) -1)) 1633 { 1634 _bfd_error_handler 1635 /* xgettext:c-format */ 1636 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), 1637 input_bfd, 1638 input_section, 1639 (long) rel->r_offset, 1640 howto->name, 1641 h->root.root.string); 1642 } 1643 } 1644 else if (h->root.type == bfd_link_hash_undefweak) 1645 ; 1646 else if (info->unresolved_syms_in_objects == RM_IGNORE 1647 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) 1648 ; 1649 else if (!bfd_link_relocatable (info)) 1650 (*info->callbacks->undefined_symbol) 1651 (info, h->root.root.string, input_bfd, 1652 input_section, rel->r_offset, 1653 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR 1654 || ELF_ST_VISIBILITY (h->other))); 1655 } 1656 1657 if (sec != NULL && discarded_section (sec)) 1658 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, 1659 rel, 1, relend, howto, 0, contents); 1660 1661 if (bfd_link_relocatable (info)) 1662 continue; 1663 1664 disp = (relocation 1665 - input_section->output_section->vma 1666 - input_section->output_offset 1667 - rel->r_offset); 1668 dropped = 0; 1669 switch ((int)r_type) 1670 { 1671 case R_SH_PT_16: dropped = disp & 2; break; 1672 case R_SH_DIR10SW: dropped = disp & 1; break; 1673 case R_SH_DIR10SL: dropped = disp & 3; break; 1674 case R_SH_DIR10SQ: dropped = disp & 7; break; 1675 } 1676 if (dropped != 0) 1677 { 1678 _bfd_error_handler 1679 /* xgettext:c-format */ 1680 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"), 1681 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation); 1682 bfd_set_error (bfd_error_bad_value); 1683 return FALSE; 1684 } 1685 switch ((int)r_type) 1686 { 1687 case R_SH_64: 1688 case R_SH_64_PCREL: 1689 if (bfd_link_pic (info) 1690 && (input_section->flags & SEC_ALLOC) != 0 1691 && (r_type != R_SH_64_PCREL 1692 || (h != NULL 1693 && h->dynindx != -1 1694 && (! info->symbolic 1695 || !h->def_regular)))) 1696 { 1697 Elf_Internal_Rela outrel; 1698 bfd_byte *loc; 1699 bfd_boolean skip, relocate; 1700 1701 /* When generating a shared object, these relocations 1702 are copied into the output file to be resolved at run 1703 time. */ 1704 1705 if (sreloc == NULL) 1706 { 1707 sreloc = _bfd_elf_get_dynamic_reloc_section 1708 (input_bfd, input_section, /*rela?*/ TRUE); 1709 if (sreloc == NULL) 1710 return FALSE; 1711 } 1712 1713 skip = FALSE; 1714 relocate = FALSE; 1715 1716 outrel.r_offset 1717 = _bfd_elf_section_offset (output_bfd, info, 1718 input_section, rel->r_offset); 1719 1720 if (outrel.r_offset == (bfd_vma) -1) 1721 skip = TRUE; 1722 else if (outrel.r_offset == (bfd_vma) -2) 1723 skip = TRUE, relocate = TRUE; 1724 1725 outrel.r_offset += (input_section->output_section->vma 1726 + input_section->output_offset); 1727 1728 if (skip) 1729 memset (&outrel, 0, sizeof outrel); 1730 else if (r_type == R_SH_64_PCREL) 1731 { 1732 BFD_ASSERT (h != NULL && h->dynindx != -1); 1733 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL); 1734 outrel.r_addend = rel->r_addend; 1735 } 1736 else 1737 { 1738 /* h->dynindx may be -1 if this symbol was marked to 1739 become local. */ 1740 if (h == NULL 1741 || ((info->symbolic || h->dynindx == -1) 1742 && h->def_regular)) 1743 { 1744 relocate = TRUE; 1745 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1746 outrel.r_addend = relocation + rel->r_addend; 1747 } 1748 else 1749 { 1750 BFD_ASSERT (h->dynindx != -1); 1751 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64); 1752 outrel.r_addend = relocation + rel->r_addend; 1753 } 1754 } 1755 1756 loc = sreloc->contents; 1757 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); 1758 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1759 1760 /* If this reloc is against an external symbol, we do 1761 not want to fiddle with the addend. Otherwise, we 1762 need to include the symbol value so that it becomes 1763 an addend for the dynamic reloc. */ 1764 if (! relocate) 1765 continue; 1766 } 1767 else if (r_type == R_SH_64) 1768 addend = rel->r_addend; 1769 goto final_link_relocate; 1770 1771 case R_SH_GOTPLT_LOW16: 1772 case R_SH_GOTPLT_MEDLOW16: 1773 case R_SH_GOTPLT_MEDHI16: 1774 case R_SH_GOTPLT_HI16: 1775 case R_SH_GOTPLT10BY4: 1776 case R_SH_GOTPLT10BY8: 1777 /* Relocation is to the entry for this symbol in the 1778 procedure linkage table. */ 1779 1780 if (h == NULL 1781 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1782 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 1783 || ! bfd_link_pic (info) 1784 || info->symbolic 1785 || h->dynindx == -1 1786 || h->plt.offset == (bfd_vma) -1 1787 || h->got.offset != (bfd_vma) -1) 1788 goto force_got; 1789 1790 /* Relocation is to the entry for this symbol in the global 1791 offset table extension for the procedure linkage table. */ 1792 sgotplt = elf_hash_table (info)->sgotplt; 1793 BFD_ASSERT (sgotplt != NULL); 1794 1795 relocation = (sgotplt->output_offset 1796 + ((h->plt.offset / elf_sh64_sizeof_plt (info) 1797 - 1 + 3) * 8)); 1798 1799 relocation -= GOT_BIAS; 1800 1801 goto final_link_relocate; 1802 1803 force_got: 1804 case R_SH_GOT_LOW16: 1805 case R_SH_GOT_MEDLOW16: 1806 case R_SH_GOT_MEDHI16: 1807 case R_SH_GOT_HI16: 1808 case R_SH_GOT10BY4: 1809 case R_SH_GOT10BY8: 1810 /* Relocation is to the entry for this symbol in the global 1811 offset table. */ 1812 sgot = elf_hash_table (info)->sgot; 1813 BFD_ASSERT (sgot != NULL); 1814 1815 if (h != NULL) 1816 { 1817 bfd_vma off; 1818 1819 off = h->got.offset; 1820 if (seen_stt_datalabel) 1821 { 1822 struct elf_sh64_link_hash_entry *hsh; 1823 1824 hsh = (struct elf_sh64_link_hash_entry *)h; 1825 off = hsh->datalabel_got_offset; 1826 } 1827 BFD_ASSERT (off != (bfd_vma) -1); 1828 1829 if (! elf_hash_table (info)->dynamic_sections_created 1830 || (bfd_link_pic (info) 1831 && (info->symbolic || h->dynindx == -1 1832 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1833 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 1834 && h->def_regular)) 1835 { 1836 /* This is actually a static link, or it is a 1837 -Bsymbolic link and the symbol is defined 1838 locally, or the symbol was forced to be local 1839 because of a version file. We must initialize 1840 this entry in the global offset table. Since the 1841 offset must always be a multiple of 4, we use the 1842 least significant bit to record whether we have 1843 initialized it already. 1844 1845 When doing a dynamic link, we create a .rela.got 1846 relocation entry to initialize the value. This 1847 is done in the finish_dynamic_symbol routine. */ 1848 if ((off & 1) != 0) 1849 off &= ~1; 1850 else 1851 { 1852 bfd_put_64 (output_bfd, relocation, 1853 sgot->contents + off); 1854 if (seen_stt_datalabel) 1855 { 1856 struct elf_sh64_link_hash_entry *hsh; 1857 1858 hsh = (struct elf_sh64_link_hash_entry *)h; 1859 hsh->datalabel_got_offset |= 1; 1860 } 1861 else 1862 h->got.offset |= 1; 1863 } 1864 } 1865 1866 relocation = sgot->output_offset + off; 1867 } 1868 else 1869 { 1870 bfd_vma off; 1871 1872 if (rel->r_addend) 1873 { 1874 BFD_ASSERT (local_got_offsets != NULL 1875 && (local_got_offsets[symtab_hdr->sh_info 1876 + r_symndx] 1877 != (bfd_vma) -1)); 1878 1879 off = local_got_offsets[symtab_hdr->sh_info 1880 + r_symndx]; 1881 } 1882 else 1883 { 1884 BFD_ASSERT (local_got_offsets != NULL 1885 && local_got_offsets[r_symndx] != (bfd_vma) -1); 1886 1887 off = local_got_offsets[r_symndx]; 1888 } 1889 1890 /* The offset must always be a multiple of 8. We use 1891 the least significant bit to record whether we have 1892 already generated the necessary reloc. */ 1893 if ((off & 1) != 0) 1894 off &= ~1; 1895 else 1896 { 1897 bfd_put_64 (output_bfd, relocation, sgot->contents + off); 1898 1899 if (bfd_link_pic (info)) 1900 { 1901 asection *s; 1902 Elf_Internal_Rela outrel; 1903 bfd_byte *loc; 1904 1905 s = elf_hash_table (info)->srelgot; 1906 BFD_ASSERT (s != NULL); 1907 1908 outrel.r_offset = (sgot->output_section->vma 1909 + sgot->output_offset 1910 + off); 1911 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1912 outrel.r_addend = relocation; 1913 loc = s->contents; 1914 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 1915 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1916 } 1917 1918 if (rel->r_addend) 1919 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1; 1920 else 1921 local_got_offsets[r_symndx] |= 1; 1922 } 1923 1924 relocation = sgot->output_offset + off; 1925 } 1926 1927 relocation -= GOT_BIAS; 1928 1929 goto final_link_relocate; 1930 1931 case R_SH_GOTOFF_LOW16: 1932 case R_SH_GOTOFF_MEDLOW16: 1933 case R_SH_GOTOFF_MEDHI16: 1934 case R_SH_GOTOFF_HI16: 1935 /* Relocation is relative to the start of the global offset 1936 table. */ 1937 1938 sgot = elf_hash_table (info)->sgot; 1939 BFD_ASSERT (sgot != NULL); 1940 1941 /* Note that sgot->output_offset is not involved in this 1942 calculation. We always want the start of .got. If we 1943 defined _GLOBAL_OFFSET_TABLE in a different way, as is 1944 permitted by the ABI, we might have to change this 1945 calculation. */ 1946 relocation -= sgot->output_section->vma; 1947 1948 relocation -= GOT_BIAS; 1949 1950 addend = rel->r_addend; 1951 1952 goto final_link_relocate; 1953 1954 case R_SH_GOTPC_LOW16: 1955 case R_SH_GOTPC_MEDLOW16: 1956 case R_SH_GOTPC_MEDHI16: 1957 case R_SH_GOTPC_HI16: 1958 /* Use global offset table as symbol value. */ 1959 1960 sgot = elf_hash_table (info)->sgot; 1961 BFD_ASSERT (sgot != NULL); 1962 1963 relocation = sgot->output_section->vma; 1964 1965 relocation += GOT_BIAS; 1966 1967 addend = rel->r_addend; 1968 1969 goto final_link_relocate; 1970 1971 case R_SH_PLT_LOW16: 1972 case R_SH_PLT_MEDLOW16: 1973 case R_SH_PLT_MEDHI16: 1974 case R_SH_PLT_HI16: 1975 /* Relocation is to the entry for this symbol in the 1976 procedure linkage table. */ 1977 1978 /* Resolve a PLT reloc against a local symbol directly, 1979 without using the procedure linkage table. */ 1980 if (h == NULL) 1981 goto final_link_relocate; 1982 1983 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1984 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 1985 goto final_link_relocate; 1986 1987 if (h->plt.offset == (bfd_vma) -1) 1988 { 1989 /* We didn't make a PLT entry for this symbol. This 1990 happens when statically linking PIC code, or when 1991 using -Bsymbolic. */ 1992 goto final_link_relocate; 1993 } 1994 1995 splt = elf_hash_table (info)->splt; 1996 BFD_ASSERT (splt != NULL); 1997 1998 relocation = (splt->output_section->vma 1999 + splt->output_offset 2000 + h->plt.offset); 2001 relocation++; 2002 2003 addend = rel->r_addend; 2004 2005 goto final_link_relocate; 2006 2007 case R_SH_DIR32: 2008 case R_SH_SHMEDIA_CODE: 2009 case R_SH_PT_16: 2010 case R_SH_DIR5U: 2011 case R_SH_DIR6S: 2012 case R_SH_DIR6U: 2013 case R_SH_DIR10S: 2014 case R_SH_DIR10SW: 2015 case R_SH_DIR10SL: 2016 case R_SH_DIR10SQ: 2017 case R_SH_IMMS16: 2018 case R_SH_IMMU16: 2019 case R_SH_IMM_LOW16: 2020 case R_SH_IMM_LOW16_PCREL: 2021 case R_SH_IMM_MEDLOW16: 2022 case R_SH_IMM_MEDLOW16_PCREL: 2023 case R_SH_IMM_MEDHI16: 2024 case R_SH_IMM_MEDHI16_PCREL: 2025 case R_SH_IMM_HI16: 2026 case R_SH_IMM_HI16_PCREL: 2027 addend = rel->r_addend; 2028 /* Fall through. */ 2029 case R_SH_REL32: 2030 final_link_relocate: 2031 r = _bfd_final_link_relocate (howto, input_bfd, input_section, 2032 contents, rel->r_offset, 2033 relocation, addend); 2034 break; 2035 2036 default: 2037 bfd_set_error (bfd_error_bad_value); 2038 return FALSE; 2039 2040 } 2041 2042 if (r != bfd_reloc_ok) 2043 { 2044 switch (r) 2045 { 2046 default: 2047 case bfd_reloc_outofrange: 2048 abort (); 2049 case bfd_reloc_overflow: 2050 { 2051 const char *name; 2052 2053 if (h != NULL) 2054 name = NULL; 2055 else 2056 { 2057 name = (bfd_elf_string_from_elf_section 2058 (input_bfd, symtab_hdr->sh_link, sym->st_name)); 2059 if (name == NULL) 2060 return FALSE; 2061 if (*name == '\0') 2062 name = bfd_section_name (input_bfd, sec); 2063 } 2064 (*info->callbacks->reloc_overflow) 2065 (info, (h ? &h->root : NULL), name, howto->name, 2066 (bfd_vma) 0, input_bfd, input_section, rel->r_offset); 2067 } 2068 break; 2069 } 2070 } 2071 } 2072 2073 return TRUE; 2074} 2075 2076/* This is a version of bfd_generic_get_relocated_section_contents 2077 that uses sh_elf64_relocate_section. 2078 2079 See sh_elf_relocate_section in elf32-sh.c for the original. */ 2080 2081static bfd_byte * 2082sh_elf64_get_relocated_section_contents (bfd *output_bfd, 2083 struct bfd_link_info *link_info, 2084 struct bfd_link_order *link_order, 2085 bfd_byte *data, 2086 bfd_boolean relocatable, 2087 asymbol **symbols) 2088{ 2089 Elf_Internal_Shdr *symtab_hdr; 2090 asection *input_section = link_order->u.indirect.section; 2091 bfd *input_bfd = input_section->owner; 2092 asection **sections = NULL; 2093 Elf_Internal_Rela *internal_relocs = NULL; 2094 Elf_Internal_Sym *isymbuf = NULL; 2095 2096 /* We only need to handle the case of relaxing, or of having a 2097 particular set of section contents, specially. */ 2098 if (relocatable 2099 || elf_section_data (input_section)->this_hdr.contents == NULL) 2100 return bfd_generic_get_relocated_section_contents (output_bfd, link_info, 2101 link_order, data, 2102 relocatable, 2103 symbols); 2104 2105 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 2106 2107 memcpy (data, elf_section_data (input_section)->this_hdr.contents, 2108 input_section->size); 2109 2110 if ((input_section->flags & SEC_RELOC) != 0 2111 && input_section->reloc_count > 0) 2112 { 2113 Elf_Internal_Sym *isymp; 2114 Elf_Internal_Sym *isymend; 2115 asection **secpp; 2116 2117 /* Read this BFD's local symbols. */ 2118 if (symtab_hdr->sh_info != 0) 2119 { 2120 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; 2121 if (isymbuf == NULL) 2122 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, 2123 symtab_hdr->sh_info, 0, 2124 NULL, NULL, NULL); 2125 if (isymbuf == NULL) 2126 goto error_return; 2127 } 2128 2129 internal_relocs = (_bfd_elf_link_read_relocs 2130 (input_bfd, input_section, NULL, 2131 (Elf_Internal_Rela *) NULL, FALSE)); 2132 if (internal_relocs == NULL) 2133 goto error_return; 2134 2135 sections = (asection **) bfd_malloc (symtab_hdr->sh_info 2136 * sizeof (asection *)); 2137 if (sections == NULL && symtab_hdr->sh_info > 0) 2138 goto error_return; 2139 2140 secpp = sections; 2141 isymend = isymbuf + symtab_hdr->sh_info; 2142 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp) 2143 { 2144 asection *isec; 2145 2146 if (isymp->st_shndx == SHN_UNDEF) 2147 isec = bfd_und_section_ptr; 2148 else if (isymp->st_shndx == SHN_ABS) 2149 isec = bfd_abs_section_ptr; 2150 else if (isymp->st_shndx == SHN_COMMON) 2151 isec = bfd_com_section_ptr; 2152 else 2153 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); 2154 2155 *secpp = isec; 2156 } 2157 2158 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd, 2159 input_section, data, internal_relocs, 2160 isymbuf, sections)) 2161 goto error_return; 2162 2163 if (sections != NULL) 2164 free (sections); 2165 if (internal_relocs != elf_section_data (input_section)->relocs) 2166 free (internal_relocs); 2167 if (isymbuf != NULL 2168 && (unsigned char *) isymbuf != symtab_hdr->contents) 2169 free (isymbuf); 2170 } 2171 2172 return data; 2173 2174 error_return: 2175 if (sections != NULL) 2176 free (sections); 2177 if (internal_relocs != NULL 2178 && internal_relocs != elf_section_data (input_section)->relocs) 2179 free (internal_relocs); 2180 if (isymbuf != NULL 2181 && (unsigned char *) isymbuf != symtab_hdr->contents) 2182 free (isymbuf); 2183 return NULL; 2184} 2185 2186/* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */ 2187 2188static bfd_boolean 2189sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED, 2190 Elf_Internal_Shdr *elf_section_hdr, 2191 asection *asect) 2192{ 2193 /* Code sections can only contain SH64 code, so mark them as such. */ 2194 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE) 2195 elf_section_hdr->sh_flags |= SHF_SH5_ISA32; 2196 2197 return TRUE; 2198} 2199 2200static bfd_boolean 2201sh_elf64_set_mach_from_flags (bfd *abfd) 2202{ 2203 flagword flags = elf_elfheader (abfd)->e_flags; 2204 2205 switch (flags & EF_SH_MACH_MASK) 2206 { 2207 case EF_SH5: 2208 /* Just one, but keep the switch construct to make additions easy. */ 2209 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5); 2210 break; 2211 2212 default: 2213 bfd_set_error (bfd_error_wrong_format); 2214 return FALSE; 2215 } 2216 return TRUE; 2217} 2218 2219/* Function to keep SH64 specific file flags. 2220 2221 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */ 2222 2223static bfd_boolean 2224sh_elf64_set_private_flags (bfd *abfd, flagword flags) 2225{ 2226 BFD_ASSERT (! elf_flags_init (abfd) 2227 || elf_elfheader (abfd)->e_flags == flags); 2228 2229 elf_elfheader (abfd)->e_flags = flags; 2230 elf_flags_init (abfd) = TRUE; 2231 return sh_elf64_set_mach_from_flags (abfd); 2232} 2233 2234/* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with 2235 code, to keep attributes the same as for SHmedia in 32-bit ELF. */ 2236 2237static bfd_boolean 2238sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd) 2239{ 2240 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2241 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2242 return TRUE; 2243 2244 /* Copy object attributes. */ 2245 _bfd_elf_copy_private_bfd_data (ibfd, obfd); 2246 2247 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); 2248} 2249 2250static bfd_boolean 2251sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd) 2252{ 2253 return sh_elf64_copy_private_data_internal (ibfd, obfd); 2254} 2255 2256static bfd_boolean 2257sh_elf64_merge_private_data (bfd *ibfd, struct bfd_link_info *info) 2258{ 2259 bfd *obfd = info->output_bfd; 2260 flagword old_flags, new_flags; 2261 2262 if (! _bfd_generic_verify_endian_match (ibfd, info)) 2263 return FALSE; 2264 2265 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2266 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2267 return TRUE; 2268 2269 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd)) 2270 { 2271 const char *msg; 2272 2273 if (bfd_get_arch_size (ibfd) == 32 2274 && bfd_get_arch_size (obfd) == 64) 2275 /* xgettext:c-format */ 2276 msg = _("%s: compiled as 32-bit object and %s is 64-bit"); 2277 else if (bfd_get_arch_size (ibfd) == 64 2278 && bfd_get_arch_size (obfd) == 32) 2279 /* xgettext:c-format */ 2280 msg = _("%s: compiled as 64-bit object and %s is 32-bit"); 2281 else 2282 /* xgettext:c-format */ 2283 msg = _("%s: object size does not match that of target %s"); 2284 2285 _bfd_error_handler (msg, bfd_get_filename (ibfd), 2286 bfd_get_filename (obfd)); 2287 bfd_set_error (bfd_error_wrong_format); 2288 return FALSE; 2289 } 2290 2291 old_flags = elf_elfheader (obfd)->e_flags; 2292 new_flags = elf_elfheader (ibfd)->e_flags; 2293 if (! elf_flags_init (obfd)) 2294 { 2295 /* This happens when ld starts out with a 'blank' output file. */ 2296 elf_flags_init (obfd) = TRUE; 2297 elf_elfheader (obfd)->e_flags = old_flags = new_flags; 2298 } 2299 /* We don't allow linking in anything else than SH64 code, and since 2300 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code 2301 here as things change. */ 2302 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5) 2303 { 2304 _bfd_error_handler 2305 ("%s: does not use the SH64 64-bit ABI as previous modules do", 2306 bfd_get_filename (ibfd)); 2307 bfd_set_error (bfd_error_bad_value); 2308 return FALSE; 2309 } 2310 2311 sh_elf64_copy_private_data_internal (ibfd, obfd); 2312 2313 /* I can't think of anything sane other than old_flags being EF_SH5 and 2314 that we need to preserve that. */ 2315 elf_elfheader (obfd)->e_flags = old_flags; 2316 2317 return sh_elf64_set_mach_from_flags (obfd); 2318} 2319 2320/* Return the section that should be marked against GC for a given 2321 relocation. */ 2322 2323static asection * 2324sh_elf64_gc_mark_hook (asection *sec, 2325 struct bfd_link_info *info, 2326 Elf_Internal_Rela *rel, 2327 struct elf_link_hash_entry *h, 2328 Elf_Internal_Sym *sym) 2329{ 2330 if (h != NULL) 2331 switch (ELF64_R_TYPE (rel->r_info)) 2332 { 2333 case R_SH_GNU_VTINHERIT: 2334 case R_SH_GNU_VTENTRY: 2335 return NULL; 2336 } 2337 2338 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); 2339} 2340 2341/* Look through the relocs for a section during the first phase. 2342 Since we don't do .gots or .plts, we just need to consider the 2343 virtual table relocs for gc. */ 2344 2345static bfd_boolean 2346sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info, 2347 asection *sec, const Elf_Internal_Rela *relocs) 2348{ 2349 Elf_Internal_Shdr *symtab_hdr; 2350 struct elf_link_hash_entry **sym_hashes; 2351 const Elf_Internal_Rela *rel; 2352 const Elf_Internal_Rela *rel_end; 2353 bfd *dynobj; 2354 bfd_vma *local_got_offsets; 2355 asection *sgot; 2356 asection *srelgot; 2357 asection *sreloc; 2358 2359 sreloc = NULL; 2360 2361 if (bfd_link_relocatable (info)) 2362 return TRUE; 2363 2364 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 2365 sym_hashes = elf_sym_hashes (abfd); 2366 2367 dynobj = elf_hash_table (info)->dynobj; 2368 local_got_offsets = elf_local_got_offsets (abfd); 2369 2370 rel_end = relocs + sec->reloc_count; 2371 for (rel = relocs; rel < rel_end; rel++) 2372 { 2373 struct elf_link_hash_entry *h; 2374 unsigned long r_symndx; 2375 2376 r_symndx = ELF64_R_SYM (rel->r_info); 2377 if (r_symndx < symtab_hdr->sh_info) 2378 h = NULL; 2379 else 2380 { 2381 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 2382 while (h->root.type == bfd_link_hash_indirect 2383 || h->root.type == bfd_link_hash_warning) 2384 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2385 2386 /* PR15323, ref flags aren't set for references in the same 2387 object. */ 2388 h->root.non_ir_ref = 1; 2389 } 2390 2391 /* Some relocs require a global offset table. */ 2392 if (dynobj == NULL) 2393 { 2394 switch (ELF64_R_TYPE (rel->r_info)) 2395 { 2396 case R_SH_GOTPLT_LOW16: 2397 case R_SH_GOTPLT_MEDLOW16: 2398 case R_SH_GOTPLT_MEDHI16: 2399 case R_SH_GOTPLT_HI16: 2400 case R_SH_GOTPLT10BY4: 2401 case R_SH_GOTPLT10BY8: 2402 case R_SH_GOT_LOW16: 2403 case R_SH_GOT_MEDLOW16: 2404 case R_SH_GOT_MEDHI16: 2405 case R_SH_GOT_HI16: 2406 case R_SH_GOT10BY4: 2407 case R_SH_GOT10BY8: 2408 case R_SH_GOTOFF_LOW16: 2409 case R_SH_GOTOFF_MEDLOW16: 2410 case R_SH_GOTOFF_MEDHI16: 2411 case R_SH_GOTOFF_HI16: 2412 case R_SH_GOTPC_LOW16: 2413 case R_SH_GOTPC_MEDLOW16: 2414 case R_SH_GOTPC_MEDHI16: 2415 case R_SH_GOTPC_HI16: 2416 elf_hash_table (info)->dynobj = dynobj = abfd; 2417 if (! _bfd_elf_create_got_section (dynobj, info)) 2418 return FALSE; 2419 break; 2420 2421 default: 2422 break; 2423 } 2424 } 2425 2426 switch (ELF64_R_TYPE (rel->r_info)) 2427 { 2428 /* This relocation describes the C++ object vtable hierarchy. 2429 Reconstruct it for later use during GC. */ 2430 case R_SH_GNU_VTINHERIT: 2431 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) 2432 return FALSE; 2433 break; 2434 2435 /* This relocation describes which C++ vtable entries are actually 2436 used. Record for later use during GC. */ 2437 case R_SH_GNU_VTENTRY: 2438 BFD_ASSERT (h != NULL); 2439 if (h != NULL 2440 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) 2441 return FALSE; 2442 break; 2443 2444 force_got: 2445 case R_SH_GOT_LOW16: 2446 case R_SH_GOT_MEDLOW16: 2447 case R_SH_GOT_MEDHI16: 2448 case R_SH_GOT_HI16: 2449 case R_SH_GOT10BY4: 2450 case R_SH_GOT10BY8: 2451 /* This symbol requires a global offset table entry. */ 2452 2453 sgot = elf_hash_table (info)->sgot; 2454 srelgot = elf_hash_table (info)->srelgot; 2455 BFD_ASSERT (sgot != NULL && srelgot != NULL); 2456 2457 if (h != NULL) 2458 { 2459 if (h->type == STT_DATALABEL) 2460 { 2461 struct elf_sh64_link_hash_entry *hsh; 2462 2463 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2464 hsh = (struct elf_sh64_link_hash_entry *)h; 2465 if (hsh->datalabel_got_offset != (bfd_vma) -1) 2466 break; 2467 2468 hsh->datalabel_got_offset = sgot->size; 2469 } 2470 else 2471 { 2472 if (h->got.offset != (bfd_vma) -1) 2473 { 2474 /* We have already allocated space in the .got. */ 2475 break; 2476 } 2477 h->got.offset = sgot->size; 2478 } 2479 2480 /* Make sure this symbol is output as a dynamic symbol. */ 2481 if (h->dynindx == -1) 2482 { 2483 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2484 return FALSE; 2485 } 2486 2487 srelgot->size += sizeof (Elf64_External_Rela); 2488 } 2489 else 2490 { 2491 /* This is a global offset table entry for a local 2492 symbol. */ 2493 if (local_got_offsets == NULL) 2494 { 2495 size_t size; 2496 register unsigned int i; 2497 2498 size = symtab_hdr->sh_info * sizeof (bfd_vma); 2499 /* Reserve space for both the datalabel and 2500 codelabel local GOT offsets. */ 2501 size *= 2; 2502 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); 2503 if (local_got_offsets == NULL) 2504 return FALSE; 2505 elf_local_got_offsets (abfd) = local_got_offsets; 2506 for (i = 0; i < symtab_hdr->sh_info; i++) 2507 local_got_offsets[i] = (bfd_vma) -1; 2508 for (; i < 2 * symtab_hdr->sh_info; i++) 2509 local_got_offsets[i] = (bfd_vma) -1; 2510 } 2511 if ((rel->r_addend & 1) != 0) 2512 { 2513 if (local_got_offsets[symtab_hdr->sh_info 2514 + r_symndx] != (bfd_vma) -1) 2515 { 2516 /* We have already allocated space in the .got. */ 2517 break; 2518 } 2519 local_got_offsets[symtab_hdr->sh_info 2520 + r_symndx] = sgot->size; 2521 } 2522 else 2523 { 2524 if (local_got_offsets[r_symndx] != (bfd_vma) -1) 2525 { 2526 /* We have already allocated space in the .got. */ 2527 break; 2528 } 2529 local_got_offsets[r_symndx] = sgot->size; 2530 } 2531 2532 if (bfd_link_pic (info)) 2533 { 2534 /* If we are generating a shared object, we need to 2535 output a R_SH_RELATIVE reloc so that the dynamic 2536 linker can adjust this GOT entry. */ 2537 srelgot->size += sizeof (Elf64_External_Rela); 2538 } 2539 } 2540 2541 sgot->size += 8; 2542 2543 break; 2544 2545 case R_SH_GOTPLT_LOW16: 2546 case R_SH_GOTPLT_MEDLOW16: 2547 case R_SH_GOTPLT_MEDHI16: 2548 case R_SH_GOTPLT_HI16: 2549 case R_SH_GOTPLT10BY4: 2550 case R_SH_GOTPLT10BY8: 2551 /* If this is a local symbol, we resolve it directly without 2552 creating a procedure linkage table entry. */ 2553 2554 if (h == NULL 2555 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2556 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 2557 || ! bfd_link_pic (info) 2558 || info->symbolic 2559 || h->dynindx == -1 2560 || h->got.offset != (bfd_vma) -1) 2561 goto force_got; 2562 2563 /* Make sure this symbol is output as a dynamic symbol. */ 2564 if (h->dynindx == -1) 2565 { 2566 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2567 return FALSE; 2568 } 2569 2570 h->needs_plt = 1; 2571 2572 break; 2573 2574 case R_SH_PLT_LOW16: 2575 case R_SH_PLT_MEDLOW16: 2576 case R_SH_PLT_MEDHI16: 2577 case R_SH_PLT_HI16: 2578 /* This symbol requires a procedure linkage table entry. We 2579 actually build the entry in adjust_dynamic_symbol, 2580 because this might be a case of linking PIC code which is 2581 never referenced by a dynamic object, in which case we 2582 don't need to generate a procedure linkage table entry 2583 after all. */ 2584 2585 /* If this is a local symbol, we resolve it directly without 2586 creating a procedure linkage table entry. */ 2587 if (h == NULL) 2588 continue; 2589 2590 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2591 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 2592 break; 2593 2594 h->needs_plt = 1; 2595 2596 break; 2597 2598 case R_SH_64: 2599 case R_SH_64_PCREL: 2600 if (h != NULL) 2601 h->non_got_ref = 1; 2602 2603 /* If we are creating a shared library, and this is a reloc 2604 against a global symbol, or a non PC relative reloc 2605 against a local symbol, then we need to copy the reloc 2606 into the shared library. However, if we are linking with 2607 -Bsymbolic, we do not need to copy a reloc against a 2608 global symbol which is defined in an object we are 2609 including in the link (i.e., DEF_REGULAR is set). At 2610 this point we have not seen all the input files, so it is 2611 possible that DEF_REGULAR is not set now but will be set 2612 later (it is never cleared). We account for that 2613 possibility below by storing information in the 2614 pcrel_relocs_copied field of the hash table entry. */ 2615 if (bfd_link_pic (info) 2616 && (sec->flags & SEC_ALLOC) != 0 2617 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL 2618 || (h != NULL 2619 && (! info->symbolic 2620 || !h->def_regular)))) 2621 { 2622 /* When creating a shared object, we must copy these 2623 reloc types into the output file. We create a reloc 2624 section in dynobj and make room for this reloc. */ 2625 if (sreloc == NULL) 2626 { 2627 sreloc = _bfd_elf_make_dynamic_reloc_section 2628 (sec, dynobj, 2, abfd, /*rela?*/ TRUE); 2629 2630 if (sreloc == NULL) 2631 return FALSE; 2632 } 2633 2634 sreloc->size += sizeof (Elf64_External_Rela); 2635 2636 /* If we are linking with -Bsymbolic, and this is a 2637 global symbol, we count the number of PC relative 2638 relocations we have entered for this symbol, so that 2639 we can discard them again if the symbol is later 2640 defined by a regular object. Note that this function 2641 is only called if we are using an elf_sh linker 2642 hash table, which means that h is really a pointer to 2643 an elf_sh_link_hash_entry. */ 2644 if (h != NULL && info->symbolic 2645 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL) 2646 { 2647 struct elf_sh64_link_hash_entry *eh; 2648 struct elf_sh64_pcrel_relocs_copied *p; 2649 2650 eh = (struct elf_sh64_link_hash_entry *) h; 2651 2652 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) 2653 if (p->section == sreloc) 2654 break; 2655 2656 if (p == NULL) 2657 { 2658 p = ((struct elf_sh64_pcrel_relocs_copied *) 2659 bfd_alloc (dynobj, sizeof *p)); 2660 if (p == NULL) 2661 return FALSE; 2662 p->next = eh->pcrel_relocs_copied; 2663 eh->pcrel_relocs_copied = p; 2664 p->section = sreloc; 2665 p->count = 0; 2666 } 2667 2668 ++p->count; 2669 } 2670 } 2671 2672 break; 2673 } 2674 } 2675 2676 return TRUE; 2677} 2678 2679static int 2680sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) 2681{ 2682 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL) 2683 return STT_DATALABEL; 2684 2685 return type; 2686} 2687 2688/* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c. 2689 Either file can presumably exist without the other, but do not differ 2690 in elf-size-ness. How to share? 2691 2692 Hook called by the linker routine which adds symbols from an object 2693 file. We must make indirect symbols for undefined symbols marked with 2694 STT_DATALABEL, so relocations passing them will pick up that attribute 2695 and neutralize STO_SH5_ISA32 found on the symbol definition. 2696 2697 There is a problem, though: We want to fill in the hash-table entry for 2698 this symbol and signal to the caller that no further processing is 2699 needed. But we don't have the index for this hash-table entry. We 2700 rely here on that the current entry is the first hash-entry with NULL, 2701 which seems brittle. Also, iterating over the hash-table to find that 2702 entry is a linear operation on the number of symbols in this input 2703 file, and this function should take constant time, so that's not good 2704 too. Only comfort is that DataLabel references should only be found in 2705 hand-written assembly code and thus be rare. FIXME: Talk maintainers 2706 into adding an option to elf_add_symbol_hook (preferably) for the index 2707 or the hash entry, alternatively adding the index to Elf_Internal_Sym 2708 (not so good). */ 2709 2710static bfd_boolean 2711sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info, 2712 Elf_Internal_Sym *sym, const char **namep, 2713 flagword *flagsp ATTRIBUTE_UNUSED, 2714 asection **secp, bfd_vma *valp) 2715{ 2716 /* We want to do this for relocatable as well as final linking. */ 2717 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL 2718 && is_elf_hash_table (info->hash)) 2719 { 2720 struct elf_link_hash_entry *h; 2721 2722 /* For relocatable links, we register the DataLabel sym in its own 2723 right, and tweak the name when it's output. Otherwise, we make 2724 an indirect symbol of it. */ 2725 flagword flags 2726 = bfd_link_relocatable (info) || info->emitrelocations 2727 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT; 2728 2729 char *dl_name 2730 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX)); 2731 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd); 2732 2733 BFD_ASSERT (sym_hash != NULL); 2734 2735 /* Allocation may fail. */ 2736 if (dl_name == NULL) 2737 return FALSE; 2738 2739 strcpy (dl_name, *namep); 2740 strcat (dl_name, DATALABEL_SUFFIX); 2741 2742 h = (struct elf_link_hash_entry *) 2743 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE); 2744 2745 if (h == NULL) 2746 { 2747 /* No previous datalabel symbol. Make one. */ 2748 struct bfd_link_hash_entry *bh = NULL; 2749 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 2750 2751 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name, 2752 flags, *secp, *valp, 2753 *namep, FALSE, 2754 bed->collect, &bh)) 2755 { 2756 free (dl_name); 2757 return FALSE; 2758 } 2759 2760 h = (struct elf_link_hash_entry *) bh; 2761 h->non_elf = 0; 2762 h->type = STT_DATALABEL; 2763 } 2764 else 2765 /* If a new symbol was created, it holds the allocated name. 2766 Otherwise, we don't need it anymore and should deallocate it. */ 2767 free (dl_name); 2768 2769 if (h->type != STT_DATALABEL 2770 || ((bfd_link_relocatable (info) || info->emitrelocations) 2771 && h->root.type != bfd_link_hash_undefined) 2772 || (! bfd_link_relocatable (info) && !info->emitrelocations 2773 && h->root.type != bfd_link_hash_indirect)) 2774 { 2775 /* Make sure we don't get confused on invalid input. */ 2776 _bfd_error_handler 2777 (_("%s: encountered datalabel symbol in input"), 2778 bfd_get_filename (abfd)); 2779 bfd_set_error (bfd_error_bad_value); 2780 return FALSE; 2781 } 2782 2783 /* Now find the hash-table slot for this entry and fill it in. */ 2784 while (*sym_hash != NULL) 2785 sym_hash++; 2786 *sym_hash = h; 2787 2788 /* Signal to caller to skip this symbol - we've handled it. */ 2789 *namep = NULL; 2790 } 2791 2792 return TRUE; 2793} 2794 2795/* This hook function is called before the linker writes out a global 2796 symbol. For relocatable links, DataLabel symbols will be present in 2797 linker output. We cut off the special suffix on those symbols, so the 2798 right name appears in the output. 2799 2800 When linking and emitting relocations, there can appear global symbols 2801 that are not referenced by relocs, but rather only implicitly through 2802 DataLabel references, a relation that is not visible to the linker. 2803 Since no stripping of global symbols in done when doing such linking, 2804 we don't need to look up and make sure to emit the main symbol for each 2805 DataLabel symbol. */ 2806 2807static int 2808sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info, 2809 const char *cname, 2810 Elf_Internal_Sym *sym, 2811 asection *input_sec ATTRIBUTE_UNUSED, 2812 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 2813{ 2814 char *name = (char *) cname; 2815 2816 if (bfd_link_relocatable (info) || info->emitrelocations) 2817 { 2818 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL) 2819 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0; 2820 } 2821 2822 return 1; 2823} 2824 2825/* Set bit 0 on the entry address; it always points to SHmedia code. This 2826 is mostly for symmetry with the 32-bit format, where code can be 2827 SHcompact and we need to make a distinction to make sure execution 2828 starts in the right ISA mode. It is also convenient for a loader, 2829 which would otherwise have to set this bit when loading a TR register 2830 before jumping to the program entry. */ 2831 2832static void 2833sh64_elf64_final_write_processing (bfd *abfd, 2834 bfd_boolean linker ATTRIBUTE_UNUSED) 2835{ 2836 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied 2837 numerically, but we currently lack the infrastructure to recognize 2838 that: The entry symbol, and info whether it is numeric or a symbol 2839 name is kept private in the linker. */ 2840 if (elf_elfheader (abfd)->e_type == ET_EXEC) 2841 elf_elfheader (abfd)->e_entry |= 1; 2842} 2843 2844/* First entry in an absolute procedure linkage table look like this. */ 2845 2846static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] = 2847{ 2848 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */ 2849 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */ 2850 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */ 2851 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */ 2852 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 2853 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 2854 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 2855 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 2856 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2857 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2858 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2859 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2860 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2861 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2862 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2863 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2864}; 2865 2866static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] = 2867{ 2868 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */ 2869 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */ 2870 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */ 2871 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */ 2872 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 2873 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 2874 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 2875 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 2876 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2877 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2878 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2879 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2880 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2881 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2882 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2883 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2884}; 2885 2886/* Sebsequent entries in an absolute procedure linkage table look like 2887 this. */ 2888 2889static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] = 2890{ 2891 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */ 2892 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */ 2893 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */ 2894 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */ 2895 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */ 2896 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 2897 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 2898 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2899 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */ 2900 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */ 2901 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */ 2902 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 2903 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 2904 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 2905 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2906 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2907}; 2908 2909static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] = 2910{ 2911 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */ 2912 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 2913 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 2914 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 2915 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */ 2916 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 2917 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 2918 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2919 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */ 2920 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */ 2921 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */ 2922 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 2923 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 2924 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 2925 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2926 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2927}; 2928 2929/* Entries in a PIC procedure linkage table look like this. */ 2930 2931static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] = 2932{ 2933 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */ 2934 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */ 2935 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */ 2936 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 2937 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 2938 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2939 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2940 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2941 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */ 2942 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */ 2943 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 2944 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 2945 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 2946 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 2947 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 2948 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 2949}; 2950 2951static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] = 2952{ 2953 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */ 2954 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */ 2955 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */ 2956 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 2957 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 2958 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2959 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2960 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2961 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */ 2962 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */ 2963 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 2964 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 2965 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 2966 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 2967 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 2968 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 2969}; 2970 2971static const bfd_byte *elf_sh64_plt0_entry; 2972static const bfd_byte *elf_sh64_plt_entry; 2973static const bfd_byte *elf_sh64_pic_plt_entry; 2974 2975/* Create an entry in an sh ELF linker hash table. */ 2976 2977static struct bfd_hash_entry * 2978sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry, 2979 struct bfd_hash_table *table, 2980 const char *string) 2981{ 2982 struct elf_sh64_link_hash_entry *ret = 2983 (struct elf_sh64_link_hash_entry *) entry; 2984 2985 /* Allocate the structure if it has not already been allocated by a 2986 subclass. */ 2987 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 2988 ret = ((struct elf_sh64_link_hash_entry *) 2989 bfd_hash_allocate (table, 2990 sizeof (struct elf_sh64_link_hash_entry))); 2991 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 2992 return (struct bfd_hash_entry *) ret; 2993 2994 /* Call the allocation method of the superclass. */ 2995 ret = ((struct elf_sh64_link_hash_entry *) 2996 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, 2997 table, string)); 2998 if (ret != (struct elf_sh64_link_hash_entry *) NULL) 2999 { 3000 ret->pcrel_relocs_copied = NULL; 3001 ret->datalabel_got_offset = (bfd_vma) -1; 3002 } 3003 3004 return (struct bfd_hash_entry *) ret; 3005} 3006 3007/* Create an sh64 ELF linker hash table. */ 3008 3009static struct bfd_link_hash_table * 3010sh64_elf64_link_hash_table_create (bfd *abfd) 3011{ 3012 struct elf_link_hash_table *ret; 3013 3014 ret = (struct elf_link_hash_table *) bfd_zmalloc (sizeof (* ret)); 3015 if (ret == (struct elf_link_hash_table *) NULL) 3016 return NULL; 3017 3018 if (!_bfd_elf_link_hash_table_init (ret, abfd, 3019 sh64_elf64_link_hash_newfunc, 3020 sizeof (struct elf_sh64_link_hash_entry), 3021 GENERIC_ELF_DATA)) 3022 { 3023 free (ret); 3024 return NULL; 3025 } 3026 3027 return &ret->root; 3028} 3029 3030inline static void 3031movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr) 3032{ 3033 bfd_put_32 (output_bfd, 3034 bfd_get_32 (output_bfd, addr) 3035 | ((value >> 6) & 0x3fffc00), 3036 addr); 3037 bfd_put_32 (output_bfd, 3038 bfd_get_32 (output_bfd, addr + 4) 3039 | ((value << 10) & 0x3fffc00), 3040 addr + 4); 3041} 3042 3043inline static void 3044movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr) 3045{ 3046 bfd_put_32 (output_bfd, 3047 bfd_get_32 (output_bfd, addr) 3048 | ((value >> 38) & 0x3fffc00), 3049 addr); 3050 bfd_put_32 (output_bfd, 3051 bfd_get_32 (output_bfd, addr + 4) 3052 | ((value >> 22) & 0x3fffc00), 3053 addr + 4); 3054 bfd_put_32 (output_bfd, 3055 bfd_get_32 (output_bfd, addr + 8) 3056 | ((value >> 6) & 0x3fffc00), 3057 addr + 8); 3058 bfd_put_32 (output_bfd, 3059 bfd_get_32 (output_bfd, addr + 12) 3060 | ((value << 10) & 0x3fffc00), 3061 addr + 12); 3062} 3063 3064/* Create dynamic sections when linking against a dynamic object. */ 3065 3066static bfd_boolean 3067sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) 3068{ 3069 flagword flags, pltflags; 3070 register asection *s; 3071 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 3072 int ptralign = 0; 3073 3074 switch (bed->s->arch_size) 3075 { 3076 case 32: 3077 ptralign = 2; 3078 break; 3079 3080 case 64: 3081 ptralign = 3; 3082 break; 3083 3084 default: 3085 bfd_set_error (bfd_error_bad_value); 3086 return FALSE; 3087 } 3088 3089 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and 3090 .rel[a].bss sections. */ 3091 3092 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY 3093 | SEC_LINKER_CREATED); 3094 3095 pltflags = flags; 3096 pltflags |= SEC_CODE; 3097 if (bed->plt_not_loaded) 3098 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); 3099 if (bed->plt_readonly) 3100 pltflags |= SEC_READONLY; 3101 3102 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags); 3103 if (s == NULL 3104 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) 3105 return FALSE; 3106 3107 if (bed->want_plt_sym) 3108 { 3109 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the 3110 .plt section. */ 3111 struct elf_link_hash_entry *h; 3112 struct bfd_link_hash_entry *bh = NULL; 3113 3114 if (! (_bfd_generic_link_add_one_symbol 3115 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 3116 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh))) 3117 return FALSE; 3118 3119 h = (struct elf_link_hash_entry *) bh; 3120 h->def_regular = 1; 3121 h->type = STT_OBJECT; 3122 elf_hash_table (info)->hplt = h; 3123 3124 if (bfd_link_pic (info) 3125 && ! bfd_elf_link_record_dynamic_symbol (info, h)) 3126 return FALSE; 3127 } 3128 3129 s = bfd_make_section_anyway_with_flags (abfd, 3130 bed->default_use_rela_p 3131 ? ".rela.plt" : ".rel.plt", 3132 flags | SEC_READONLY); 3133 if (s == NULL 3134 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3135 return FALSE; 3136 3137 if (! _bfd_elf_create_got_section (abfd, info)) 3138 return FALSE; 3139 3140 if (bed->want_dynbss) 3141 { 3142 /* The .dynbss section is a place to put symbols which are defined 3143 by dynamic objects, are referenced by regular objects, and are 3144 not functions. We must allocate space for them in the process 3145 image and use a R_*_COPY reloc to tell the dynamic linker to 3146 initialize them at run time. The linker script puts the .dynbss 3147 section into the .bss section of the final image. */ 3148 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", 3149 SEC_ALLOC | SEC_LINKER_CREATED); 3150 if (s == NULL) 3151 return FALSE; 3152 3153 /* The .rel[a].bss section holds copy relocs. This section is not 3154 normally needed. We need to create it here, though, so that the 3155 linker will map it to an output section. We can't just create it 3156 only if we need it, because we will not know whether we need it 3157 until we have seen all the input files, and the first time the 3158 main linker code calls BFD after examining all the input files 3159 (size_dynamic_sections) the input sections have already been 3160 mapped to the output sections. If the section turns out not to 3161 be needed, we can discard it later. We will never need this 3162 section when generating a shared object, since they do not use 3163 copy relocs. */ 3164 if (! bfd_link_pic (info)) 3165 { 3166 s = bfd_make_section_anyway_with_flags (abfd, 3167 (bed->default_use_rela_p 3168 ? ".rela.bss" : ".rel.bss"), 3169 flags | SEC_READONLY); 3170 if (s == NULL 3171 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3172 return FALSE; 3173 } 3174 } 3175 3176 return TRUE; 3177} 3178 3179/* Adjust a symbol defined by a dynamic object and referenced by a 3180 regular object. The current definition is in some section of the 3181 dynamic object, but we're not including those sections. We have to 3182 change the definition to something the rest of the link can 3183 understand. */ 3184 3185static bfd_boolean 3186sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info, 3187 struct elf_link_hash_entry *h) 3188{ 3189 bfd *dynobj; 3190 asection *s; 3191 3192 dynobj = elf_hash_table (info)->dynobj; 3193 3194 /* Make sure we know what is going on here. */ 3195 BFD_ASSERT (dynobj != NULL 3196 && (h->needs_plt 3197 || h->u.weakdef != NULL 3198 || (h->def_dynamic 3199 && h->ref_regular 3200 && !h->def_regular))); 3201 3202 /* If this is a function, put it in the procedure linkage table. We 3203 will fill in the contents of the procedure linkage table later, 3204 when we know the address of the .got section. */ 3205 if (h->type == STT_FUNC 3206 || h->needs_plt) 3207 { 3208 if (! bfd_link_pic (info) 3209 && !h->def_dynamic 3210 && !h->ref_dynamic) 3211 { 3212 /* This case can occur if we saw a PLT reloc in an input 3213 file, but the symbol was never referred to by a dynamic 3214 object. In such a case, we don't actually need to build 3215 a procedure linkage table, and we can just do a REL64 3216 reloc instead. */ 3217 BFD_ASSERT (h->needs_plt); 3218 return TRUE; 3219 } 3220 3221 /* Make sure this symbol is output as a dynamic symbol. */ 3222 if (h->dynindx == -1) 3223 { 3224 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3225 return FALSE; 3226 } 3227 3228 s = elf_hash_table (info)->splt; 3229 BFD_ASSERT (s != NULL); 3230 3231 /* If this is the first .plt entry, make room for the special 3232 first entry. */ 3233 if (s->size == 0) 3234 s->size += PLT_ENTRY_SIZE; 3235 3236 /* If this symbol is not defined in a regular file, and we are 3237 not generating a shared library, then set the symbol to this 3238 location in the .plt. This is required to make function 3239 pointers compare as equal between the normal executable and 3240 the shared library. */ 3241 if (! bfd_link_pic (info) 3242 && !h->def_regular) 3243 { 3244 h->root.u.def.section = s; 3245 h->root.u.def.value = s->size; 3246 } 3247 3248 h->plt.offset = s->size; 3249 3250 /* Make room for this entry. */ 3251 s->size += elf_sh64_sizeof_plt (info); 3252 3253 /* We also need to make an entry in the .got.plt section, which 3254 will be placed in the .got section by the linker script. */ 3255 3256 s = elf_hash_table (info)->sgotplt; 3257 BFD_ASSERT (s != NULL); 3258 s->size += 8; 3259 3260 /* We also need to make an entry in the .rela.plt section. */ 3261 3262 s = elf_hash_table (info)->srelplt; 3263 BFD_ASSERT (s != NULL); 3264 s->size += sizeof (Elf64_External_Rela); 3265 3266 return TRUE; 3267 } 3268 3269 /* If this is a weak symbol, and there is a real definition, the 3270 processor independent code will have arranged for us to see the 3271 real definition first, and we can just use the same value. */ 3272 if (h->u.weakdef != NULL) 3273 { 3274 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined 3275 || h->u.weakdef->root.type == bfd_link_hash_defweak); 3276 h->root.u.def.section = h->u.weakdef->root.u.def.section; 3277 h->root.u.def.value = h->u.weakdef->root.u.def.value; 3278 return TRUE; 3279 } 3280 3281 /* This is a reference to a symbol defined by a dynamic object which 3282 is not a function. */ 3283 3284 /* If we are creating a shared library, we must presume that the 3285 only references to the symbol are via the global offset table. 3286 For such cases we need not do anything here; the relocations will 3287 be handled correctly by relocate_section. */ 3288 if (bfd_link_pic (info)) 3289 return TRUE; 3290 3291 /* If there are no references to this symbol that do not use the 3292 GOT, we don't need to generate a copy reloc. */ 3293 if (!h->non_got_ref) 3294 return TRUE; 3295 3296 /* We must allocate the symbol in our .dynbss section, which will 3297 become part of the .bss section of the executable. There will be 3298 an entry for this symbol in the .dynsym section. The dynamic 3299 object will contain position independent code, so all references 3300 from the dynamic object to this symbol will go through the global 3301 offset table. The dynamic linker will use the .dynsym entry to 3302 determine the address it must put in the global offset table, so 3303 both the dynamic object and the regular object will refer to the 3304 same memory location for the variable. */ 3305 3306 s = bfd_get_linker_section (dynobj, ".dynbss"); 3307 BFD_ASSERT (s != NULL); 3308 3309 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to 3310 copy the initial value out of the dynamic object and into the 3311 runtime process image. We need to remember the offset into the 3312 .rela.bss section we are going to use. */ 3313 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) 3314 { 3315 asection *srel; 3316 3317 srel = bfd_get_linker_section (dynobj, ".rela.bss"); 3318 BFD_ASSERT (srel != NULL); 3319 srel->size += sizeof (Elf64_External_Rela); 3320 h->needs_copy = 1; 3321 } 3322 3323 return _bfd_elf_adjust_dynamic_copy (info, h, s); 3324} 3325 3326/* This function is called via sh_elf_link_hash_traverse if we are 3327 creating a shared object with -Bsymbolic. It discards the space 3328 allocated to copy PC relative relocs against symbols which are 3329 defined in regular objects. We allocated space for them in the 3330 check_relocs routine, but we won't fill them in in the 3331 relocate_section routine. */ 3332 3333static bfd_boolean 3334sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h, 3335 void *ignore ATTRIBUTE_UNUSED) 3336{ 3337 struct elf_sh64_pcrel_relocs_copied *s; 3338 3339 /* We only discard relocs for symbols defined in a regular object. */ 3340 if (!h->root.def_regular) 3341 return TRUE; 3342 3343 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) 3344 s->section->size -= s->count * sizeof (Elf64_External_Rela); 3345 3346 return TRUE; 3347} 3348 3349/* Set the sizes of the dynamic sections. */ 3350 3351static bfd_boolean 3352sh64_elf64_size_dynamic_sections (bfd *output_bfd, 3353 struct bfd_link_info *info) 3354{ 3355 bfd *dynobj; 3356 asection *s; 3357 bfd_boolean plt; 3358 bfd_boolean relocs; 3359 bfd_boolean reltext; 3360 3361 dynobj = elf_hash_table (info)->dynobj; 3362 BFD_ASSERT (dynobj != NULL); 3363 3364 if (elf_hash_table (info)->dynamic_sections_created) 3365 { 3366 /* Set the contents of the .interp section to the interpreter. */ 3367 if (bfd_link_executable (info) && !info->nointerp) 3368 { 3369 s = bfd_get_linker_section (dynobj, ".interp"); 3370 BFD_ASSERT (s != NULL); 3371 s->size = sizeof ELF_DYNAMIC_INTERPRETER; 3372 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; 3373 } 3374 } 3375 else 3376 { 3377 /* We may have created entries in the .rela.got section. 3378 However, if we are not creating the dynamic sections, we will 3379 not actually use these entries. Reset the size of .rela.got, 3380 which will cause it to get stripped from the output file 3381 below. */ 3382 s = elf_hash_table (info)->srelgot; 3383 if (s != NULL) 3384 s->size = 0; 3385 } 3386 3387 /* If this is a -Bsymbolic shared link, then we need to discard all 3388 PC relative relocs against symbols defined in a regular object. 3389 We allocated space for them in the check_relocs routine, but we 3390 will not fill them in in the relocate_section routine. */ 3391 if (bfd_link_pic (info) && info->symbolic) 3392 sh64_elf64_link_hash_traverse (elf_hash_table (info), 3393 sh64_elf64_discard_copies, NULL); 3394 3395 /* The check_relocs and adjust_dynamic_symbol entry points have 3396 determined the sizes of the various dynamic sections. Allocate 3397 memory for them. */ 3398 plt = FALSE; 3399 relocs = FALSE; 3400 reltext = FALSE; 3401 for (s = dynobj->sections; s != NULL; s = s->next) 3402 { 3403 const char *name; 3404 3405 if ((s->flags & SEC_LINKER_CREATED) == 0) 3406 continue; 3407 3408 /* It's OK to base decisions on the section name, because none 3409 of the dynobj section names depend upon the input files. */ 3410 name = bfd_get_section_name (dynobj, s); 3411 3412 if (strcmp (name, ".plt") == 0) 3413 { 3414 /* Remember whether there is a PLT. */ 3415 plt = s->size != 0; 3416 } 3417 else if (CONST_STRNEQ (name, ".rela")) 3418 { 3419 if (s->size != 0) 3420 { 3421 asection *target; 3422 3423 /* Remember whether there are any reloc sections other 3424 than .rela.plt. */ 3425 if (strcmp (name, ".rela.plt") != 0) 3426 { 3427 const char *outname; 3428 3429 relocs = TRUE; 3430 3431 /* If this relocation section applies to a read only 3432 section, then we probably need a DT_TEXTREL 3433 entry. The entries in the .rela.plt section 3434 really apply to the .got section, which we 3435 created ourselves and so know is not readonly. */ 3436 outname = bfd_get_section_name (output_bfd, 3437 s->output_section); 3438 target = bfd_get_section_by_name (output_bfd, outname + 5); 3439 if (target != NULL 3440 && (target->flags & SEC_READONLY) != 0 3441 && (target->flags & SEC_ALLOC) != 0) 3442 reltext = TRUE; 3443 } 3444 3445 /* We use the reloc_count field as a counter if we need 3446 to copy relocs into the output file. */ 3447 s->reloc_count = 0; 3448 } 3449 } 3450 else if (! CONST_STRNEQ (name, ".got") 3451 && strcmp (name, ".dynbss") != 0) 3452 { 3453 /* It's not one of our sections, so don't allocate space. */ 3454 continue; 3455 } 3456 3457 if (s->size == 0) 3458 { 3459 /* If we don't need this section, strip it from the 3460 output file. This is mostly to handle .rela.bss and 3461 .rela.plt. We must create both sections in 3462 create_dynamic_sections, because they must be created 3463 before the linker maps input sections to output 3464 sections. The linker does that before 3465 adjust_dynamic_symbol is called, and it is that 3466 function which decides whether anything needs to go 3467 into these sections. */ 3468 s->flags |= SEC_EXCLUDE; 3469 continue; 3470 } 3471 3472 if ((s->flags & SEC_HAS_CONTENTS) == 0) 3473 continue; 3474 3475 /* Allocate memory for the section contents. */ 3476 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); 3477 if (s->contents == NULL) 3478 return FALSE; 3479 } 3480 3481 if (elf_hash_table (info)->dynamic_sections_created) 3482 { 3483 /* Add some entries to the .dynamic section. We fill in the 3484 values later, in sh64_elf64_finish_dynamic_sections, but we 3485 must add the entries now so that we get the correct size for 3486 the .dynamic section. The DT_DEBUG entry is filled in by the 3487 dynamic linker and used by the debugger. */ 3488 if (bfd_link_executable (info)) 3489 { 3490 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) 3491 return FALSE; 3492 } 3493 3494 if (plt) 3495 { 3496 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) 3497 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) 3498 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) 3499 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) 3500 return FALSE; 3501 } 3502 3503 if (relocs) 3504 { 3505 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) 3506 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) 3507 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, 3508 sizeof (Elf64_External_Rela))) 3509 return FALSE; 3510 } 3511 3512 if (reltext) 3513 { 3514 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) 3515 return FALSE; 3516 } 3517 } 3518 3519 return TRUE; 3520} 3521 3522/* Finish up dynamic symbol handling. We set the contents of various 3523 dynamic sections here. */ 3524 3525static bfd_boolean 3526sh64_elf64_finish_dynamic_symbol (bfd *output_bfd, 3527 struct bfd_link_info *info, 3528 struct elf_link_hash_entry *h, 3529 Elf_Internal_Sym *sym) 3530{ 3531 bfd *dynobj; 3532 3533 dynobj = elf_hash_table (info)->dynobj; 3534 3535 if (h->plt.offset != (bfd_vma) -1) 3536 { 3537 asection *splt; 3538 asection *sgot; 3539 asection *srel; 3540 3541 bfd_vma plt_index; 3542 bfd_vma got_offset; 3543 Elf_Internal_Rela rel; 3544 bfd_byte *loc; 3545 3546 /* This symbol has an entry in the procedure linkage table. Set 3547 it up. */ 3548 3549 BFD_ASSERT (h->dynindx != -1); 3550 3551 splt = elf_hash_table (info)->splt; 3552 sgot = elf_hash_table (info)->sgotplt; 3553 srel = elf_hash_table (info)->srelplt; 3554 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); 3555 3556 /* Get the index in the procedure linkage table which 3557 corresponds to this symbol. This is the index of this symbol 3558 in all the symbols for which we are making plt entries. The 3559 first entry in the procedure linkage table is reserved. */ 3560 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1; 3561 3562 /* Get the offset into the .got table of the entry that 3563 corresponds to this function. Each .got entry is 8 bytes. 3564 The first three are reserved. */ 3565 got_offset = (plt_index + 3) * 8; 3566 3567 if (bfd_link_pic (info)) 3568 got_offset -= GOT_BIAS; 3569 3570 /* Fill in the entry in the procedure linkage table. */ 3571 if (! bfd_link_pic (info)) 3572 { 3573 if (elf_sh64_plt_entry == NULL) 3574 { 3575 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ? 3576 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le); 3577 } 3578 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry, 3579 elf_sh64_sizeof_plt (info)); 3580 movi_3shori_putval (output_bfd, 3581 (sgot->output_section->vma 3582 + sgot->output_offset 3583 + got_offset), 3584 (splt->contents + h->plt.offset 3585 + elf_sh64_plt_symbol_offset (info))); 3586 3587 /* Set bottom bit because its for a branch to SHmedia */ 3588 movi_shori_putval (output_bfd, 3589 -(h->plt.offset 3590 + elf_sh64_plt_plt0_offset (info) + 8) 3591 | 1, 3592 (splt->contents + h->plt.offset 3593 + elf_sh64_plt_plt0_offset (info))); 3594 } 3595 else 3596 { 3597 if (elf_sh64_pic_plt_entry == NULL) 3598 { 3599 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 3600 elf_sh64_pic_plt_entry_be : 3601 elf_sh64_pic_plt_entry_le); 3602 } 3603 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry, 3604 elf_sh64_sizeof_plt (info)); 3605 movi_shori_putval (output_bfd, got_offset, 3606 (splt->contents + h->plt.offset 3607 + elf_sh64_plt_symbol_offset (info))); 3608 } 3609 3610 if (bfd_link_pic (info)) 3611 got_offset += GOT_BIAS; 3612 3613 movi_shori_putval (output_bfd, 3614 plt_index * sizeof (Elf64_External_Rela), 3615 (splt->contents + h->plt.offset 3616 + elf_sh64_plt_reloc_offset (info))); 3617 3618 /* Fill in the entry in the global offset table. */ 3619 bfd_put_64 (output_bfd, 3620 (splt->output_section->vma 3621 + splt->output_offset 3622 + h->plt.offset 3623 + elf_sh64_plt_temp_offset (info)), 3624 sgot->contents + got_offset); 3625 3626 /* Fill in the entry in the .rela.plt section. */ 3627 rel.r_offset = (sgot->output_section->vma 3628 + sgot->output_offset 3629 + got_offset); 3630 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64); 3631 rel.r_addend = 0; 3632 rel.r_addend = GOT_BIAS; 3633 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela); 3634 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3635 3636 if (!h->def_regular) 3637 { 3638 /* Mark the symbol as undefined, rather than as defined in 3639 the .plt section. Leave the value alone. */ 3640 sym->st_shndx = SHN_UNDEF; 3641 } 3642 } 3643 3644 if (h->got.offset != (bfd_vma) -1) 3645 { 3646 asection *sgot; 3647 asection *srel; 3648 Elf_Internal_Rela rel; 3649 bfd_byte *loc; 3650 3651 /* This symbol has an entry in the global offset table. Set it 3652 up. */ 3653 3654 sgot = elf_hash_table (info)->sgot; 3655 srel = elf_hash_table (info)->srelgot; 3656 BFD_ASSERT (sgot != NULL && srel != NULL); 3657 3658 rel.r_offset = (sgot->output_section->vma 3659 + sgot->output_offset 3660 + (h->got.offset &~ 1)); 3661 3662 /* If this is a -Bsymbolic link, and the symbol is defined 3663 locally, we just want to emit a RELATIVE reloc. Likewise if 3664 the symbol was forced to be local because of a version file. 3665 The entry in the global offset table will already have been 3666 initialized in the relocate_section function. */ 3667 if (bfd_link_pic (info) 3668 && (info->symbolic || h->dynindx == -1) 3669 && h->def_regular) 3670 { 3671 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 3672 rel.r_addend = (h->root.u.def.value 3673 + h->root.u.def.section->output_section->vma 3674 + h->root.u.def.section->output_offset); 3675 } 3676 else 3677 { 3678 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); 3679 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64); 3680 rel.r_addend = 0; 3681 } 3682 3683 loc = srel->contents; 3684 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); 3685 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3686 } 3687 3688 if (h->needs_copy) 3689 { 3690 asection *s; 3691 Elf_Internal_Rela rel; 3692 bfd_byte *loc; 3693 3694 /* This symbol needs a copy reloc. Set it up. */ 3695 3696 BFD_ASSERT (h->dynindx != -1 3697 && (h->root.type == bfd_link_hash_defined 3698 || h->root.type == bfd_link_hash_defweak)); 3699 3700 s = bfd_get_linker_section (dynobj, ".rela.bss"); 3701 BFD_ASSERT (s != NULL); 3702 3703 rel.r_offset = (h->root.u.def.value 3704 + h->root.u.def.section->output_section->vma 3705 + h->root.u.def.section->output_offset); 3706 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64); 3707 rel.r_addend = 0; 3708 loc = s->contents; 3709 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 3710 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3711 } 3712 3713 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ 3714 if (h == elf_hash_table (info)->hdynamic 3715 || h == elf_hash_table (info)->hgot) 3716 sym->st_shndx = SHN_ABS; 3717 3718 return TRUE; 3719} 3720 3721/* Finish up the dynamic sections. */ 3722 3723static bfd_boolean 3724sh64_elf64_finish_dynamic_sections (bfd *output_bfd, 3725 struct bfd_link_info *info) 3726{ 3727 bfd *dynobj; 3728 asection *sgot; 3729 asection *sdyn; 3730 3731 dynobj = elf_hash_table (info)->dynobj; 3732 3733 sgot = elf_hash_table (info)->sgotplt; 3734 BFD_ASSERT (sgot != NULL); 3735 sdyn = bfd_get_linker_section (dynobj, ".dynamic"); 3736 3737 if (elf_hash_table (info)->dynamic_sections_created) 3738 { 3739 asection *splt; 3740 Elf64_External_Dyn *dyncon, *dynconend; 3741 3742 BFD_ASSERT (sdyn != NULL); 3743 3744 dyncon = (Elf64_External_Dyn *) sdyn->contents; 3745 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); 3746 for (; dyncon < dynconend; dyncon++) 3747 { 3748 Elf_Internal_Dyn dyn; 3749 const char *name; 3750 asection *s; 3751 struct elf_link_hash_entry *h; 3752 3753 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); 3754 3755 switch (dyn.d_tag) 3756 { 3757 default: 3758 break; 3759 3760 case DT_INIT: 3761 name = info->init_function; 3762 goto get_sym; 3763 3764 case DT_FINI: 3765 name = info->fini_function; 3766 get_sym: 3767 if (dyn.d_un.d_val != 0) 3768 { 3769 h = elf_link_hash_lookup (elf_hash_table (info), name, 3770 FALSE, FALSE, TRUE); 3771 if (h != NULL && (h->other & STO_SH5_ISA32)) 3772 { 3773 dyn.d_un.d_val |= 1; 3774 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 3775 } 3776 } 3777 break; 3778 3779 case DT_PLTGOT: 3780 s = elf_hash_table (info)->sgotplt; 3781 goto get_vma; 3782 3783 case DT_JMPREL: 3784 s = elf_hash_table (info)->srelplt; 3785 get_vma: 3786 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; 3787 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 3788 break; 3789 3790 case DT_PLTRELSZ: 3791 s = elf_hash_table (info)->srelplt; 3792 dyn.d_un.d_val = s->size; 3793 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 3794 break; 3795 } 3796 } 3797 3798 /* Fill in the first entry in the procedure linkage table. */ 3799 splt = elf_hash_table (info)->splt; 3800 if (splt && splt->size > 0) 3801 { 3802 if (bfd_link_pic (info)) 3803 { 3804 if (elf_sh64_pic_plt_entry == NULL) 3805 { 3806 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 3807 elf_sh64_pic_plt_entry_be : 3808 elf_sh64_pic_plt_entry_le); 3809 } 3810 memcpy (splt->contents, elf_sh64_pic_plt_entry, 3811 elf_sh64_sizeof_plt (info)); 3812 } 3813 else 3814 { 3815 if (elf_sh64_plt0_entry == NULL) 3816 { 3817 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ? 3818 elf_sh64_plt0_entry_be : 3819 elf_sh64_plt0_entry_le); 3820 } 3821 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE); 3822 movi_3shori_putval (output_bfd, 3823 sgot->output_section->vma 3824 + sgot->output_offset, 3825 splt->contents 3826 + elf_sh64_plt0_gotplt_offset (info)); 3827 } 3828 3829 /* UnixWare sets the entsize of .plt to 8, although that doesn't 3830 really seem like the right value. */ 3831 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8; 3832 } 3833 } 3834 3835 /* Fill in the first three entries in the global offset table. */ 3836 if (sgot->size > 0) 3837 { 3838 if (sdyn == NULL) 3839 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); 3840 else 3841 bfd_put_64 (output_bfd, 3842 sdyn->output_section->vma + sdyn->output_offset, 3843 sgot->contents); 3844 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8); 3845 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16); 3846 } 3847 3848 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; 3849 3850 return TRUE; 3851} 3852 3853/* Merge non visibility st_other attribute when the symbol comes from 3854 a dynamic object. */ 3855static void 3856sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h, 3857 const Elf_Internal_Sym *isym, 3858 bfd_boolean definition, 3859 bfd_boolean dynamic ATTRIBUTE_UNUSED) 3860{ 3861 if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0) 3862 { 3863 unsigned char other; 3864 3865 /* Take the balance of OTHER from the definition. */ 3866 other = (definition ? isym->st_other : h->other); 3867 other &= ~ ELF_ST_VISIBILITY (-1); 3868 h->other = other | ELF_ST_VISIBILITY (h->other); 3869 } 3870 3871 return; 3872} 3873 3874static const struct bfd_elf_special_section sh64_elf64_special_sections[]= 3875{ 3876 { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 }, 3877 { NULL, 0, 0, 0, 0 } 3878}; 3879 3880#define TARGET_BIG_SYM sh64_elf64_vec 3881#define TARGET_BIG_NAME "elf64-sh64" 3882#define TARGET_LITTLE_SYM sh64_elf64_le_vec 3883#define TARGET_LITTLE_NAME "elf64-sh64l" 3884#define ELF_ARCH bfd_arch_sh 3885#define ELF_MACHINE_CODE EM_SH 3886#define ELF_MAXPAGESIZE 128 3887 3888#define elf_symbol_leading_char '_' 3889 3890#define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup 3891#define bfd_elf64_bfd_reloc_name_lookup \ 3892 sh_elf64_reloc_name_lookup 3893#define elf_info_to_howto sh_elf64_info_to_howto 3894 3895/* Note: there's no relaxation at present. */ 3896 3897#define elf_backend_relocate_section sh_elf64_relocate_section 3898#define bfd_elf64_bfd_get_relocated_section_contents \ 3899 sh_elf64_get_relocated_section_contents 3900#define elf_backend_object_p sh_elf64_set_mach_from_flags 3901#define bfd_elf64_bfd_set_private_flags \ 3902 sh_elf64_set_private_flags 3903#define bfd_elf64_bfd_copy_private_bfd_data \ 3904 sh_elf64_copy_private_data 3905#define bfd_elf64_bfd_merge_private_bfd_data \ 3906 sh_elf64_merge_private_data 3907#define elf_backend_fake_sections sh64_elf64_fake_sections 3908 3909#define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook 3910#define elf_backend_check_relocs sh_elf64_check_relocs 3911 3912#define elf_backend_can_gc_sections 1 3913 3914#define elf_backend_get_symbol_type sh64_elf64_get_symbol_type 3915 3916#define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook 3917 3918#define elf_backend_link_output_symbol_hook \ 3919 sh64_elf64_link_output_symbol_hook 3920 3921#define elf_backend_merge_symbol_attribute \ 3922 sh64_elf64_merge_symbol_attribute 3923 3924#define elf_backend_final_write_processing \ 3925 sh64_elf64_final_write_processing 3926 3927#define elf_backend_create_dynamic_sections \ 3928 sh64_elf64_create_dynamic_sections 3929#define bfd_elf64_bfd_link_hash_table_create \ 3930 sh64_elf64_link_hash_table_create 3931#define elf_backend_adjust_dynamic_symbol \ 3932 sh64_elf64_adjust_dynamic_symbol 3933#define elf_backend_size_dynamic_sections \ 3934 sh64_elf64_size_dynamic_sections 3935#define elf_backend_omit_section_dynsym \ 3936 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) 3937#define elf_backend_finish_dynamic_symbol \ 3938 sh64_elf64_finish_dynamic_symbol 3939#define elf_backend_finish_dynamic_sections \ 3940 sh64_elf64_finish_dynamic_sections 3941#define elf_backend_special_sections sh64_elf64_special_sections 3942 3943#define elf_backend_want_got_plt 1 3944#define elf_backend_plt_readonly 1 3945#define elf_backend_want_plt_sym 0 3946#define elf_backend_got_header_size 24 3947#define elf_backend_dtrel_excludes_plt 1 3948 3949#include "elf64-target.h" 3950 3951/* NetBSD support. */ 3952#undef TARGET_BIG_SYM 3953#define TARGET_BIG_SYM sh64_elf64_nbsd_vec 3954#undef TARGET_BIG_NAME 3955#define TARGET_BIG_NAME "elf64-sh64-nbsd" 3956#undef TARGET_LITTLE_SYM 3957#define TARGET_LITTLE_SYM sh64_elf64_nbsd_le_vec 3958#undef TARGET_LITTLE_NAME 3959#define TARGET_LITTLE_NAME "elf64-sh64l-nbsd" 3960#undef ELF_MAXPAGESIZE 3961#define ELF_MAXPAGESIZE 0x10000 3962#undef elf_symbol_leading_char 3963#define elf_symbol_leading_char 0 3964 3965#define elf64_bed elf64_sh64_nbsd_bed 3966 3967#include "elf64-target.h" 3968 3969/* Linux support. */ 3970#undef TARGET_BIG_SYM 3971#define TARGET_BIG_SYM sh64_elf64_linux_be_vec 3972#undef TARGET_BIG_NAME 3973#define TARGET_BIG_NAME "elf64-sh64big-linux" 3974#undef TARGET_LITTLE_SYM 3975#define TARGET_LITTLE_SYM sh64_elf64_linux_vec 3976#undef TARGET_LITTLE_NAME 3977#define TARGET_LITTLE_NAME "elf64-sh64-linux" 3978#undef elf64_bed 3979#define elf64_bed elf64_sh64_linux_bed 3980 3981#include "elf64-target.h" 3982