1 /* SuperH SH64-specific support for 64-bit ELF 2 Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006 3 Free Software Foundation, Inc. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 20 21 #define SH64_ELF64 22 23 #include "bfd.h" 24 #include "sysdep.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) (info->shared ? 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 69 struct 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 81 struct 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 /* sh ELF linker hash table. */ 92 93 struct elf_sh64_link_hash_table 94 { 95 struct elf_link_hash_table root; 96 }; 97 98 /* Traverse an sh ELF linker hash table. */ 99 100 #define sh64_elf64_link_hash_traverse(table, func, info) \ 101 (elf_link_hash_traverse \ 102 (&(table)->root, \ 103 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ 104 (info))) 105 106 /* Get the sh ELF linker hash table from a link_info structure. */ 107 108 #define sh64_elf64_hash_table(p) \ 109 ((struct elf_sh64_link_hash_table *) ((p)->hash)) 110 111 static bfd_reloc_status_type sh_elf64_ignore_reloc 112 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 113 static bfd_reloc_status_type sh_elf64_reloc 114 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 115 116 static reloc_howto_type sh_elf64_howto_table[] = { 117 /* No relocation. */ 118 HOWTO (R_SH_NONE, /* type */ 119 0, /* rightshift */ 120 0, /* size (0 = byte, 1 = short, 2 = long) */ 121 0, /* bitsize */ 122 FALSE, /* pc_relative */ 123 0, /* bitpos */ 124 complain_overflow_dont, /* complain_on_overflow */ 125 sh_elf64_ignore_reloc, /* special_function */ 126 "R_SH_NONE", /* name */ 127 FALSE, /* partial_inplace */ 128 0, /* src_mask */ 129 0, /* dst_mask */ 130 FALSE), /* pcrel_offset */ 131 132 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and 133 src_mask to a non-zero value is similar to the COFF toolchain. */ 134 HOWTO (R_SH_DIR32, /* type */ 135 0, /* rightshift */ 136 2, /* size (0 = byte, 1 = short, 2 = long) */ 137 32, /* bitsize */ 138 FALSE, /* pc_relative */ 139 0, /* bitpos */ 140 complain_overflow_bitfield, /* complain_on_overflow */ 141 sh_elf64_reloc, /* special_function */ 142 "R_SH_DIR32", /* name */ 143 TRUE, /* partial_inplace */ 144 0xffffffff, /* src_mask */ 145 0xffffffff, /* dst_mask */ 146 FALSE), /* pcrel_offset */ 147 148 /* 32 bit PC relative relocation. */ 149 HOWTO (R_SH_REL32, /* type */ 150 0, /* rightshift */ 151 2, /* size (0 = byte, 1 = short, 2 = long) */ 152 32, /* bitsize */ 153 TRUE, /* pc_relative */ 154 0, /* bitpos */ 155 complain_overflow_signed, /* complain_on_overflow */ 156 sh_elf64_ignore_reloc, /* special_function */ 157 "R_SH_REL32", /* name */ 158 FALSE, /* partial_inplace */ 159 0, /* src_mask */ 160 0xffffffff, /* dst_mask */ 161 TRUE), /* pcrel_offset */ 162 163 /* For 32-bit sh, this is R_SH_DIR8WPN. */ 164 EMPTY_HOWTO (3), 165 166 /* For 32-bit sh, this is R_SH_IND12W. */ 167 EMPTY_HOWTO (4), 168 169 /* For 32-bit sh, this is R_SH_DIR8WPL. */ 170 EMPTY_HOWTO (5), 171 172 /* For 32-bit sh, this is R_SH_DIR8WPZ. */ 173 EMPTY_HOWTO (6), 174 175 /* For 32-bit sh, this is R_SH_DIR8BP. */ 176 EMPTY_HOWTO (7), 177 178 /* For 32-bit sh, this is R_SH_DIR8W. */ 179 EMPTY_HOWTO (8), 180 181 /* For 32-bit sh, this is R_SH_DIR8L. */ 182 EMPTY_HOWTO (9), 183 184 EMPTY_HOWTO (10), 185 EMPTY_HOWTO (11), 186 EMPTY_HOWTO (12), 187 EMPTY_HOWTO (13), 188 EMPTY_HOWTO (14), 189 EMPTY_HOWTO (15), 190 EMPTY_HOWTO (16), 191 EMPTY_HOWTO (17), 192 EMPTY_HOWTO (18), 193 EMPTY_HOWTO (19), 194 EMPTY_HOWTO (20), 195 EMPTY_HOWTO (21), 196 EMPTY_HOWTO (22), 197 EMPTY_HOWTO (23), 198 EMPTY_HOWTO (24), 199 200 /* The remaining relocs are a GNU extension used for relaxing. The 201 final pass of the linker never needs to do anything with any of 202 these relocs. Any required operations are handled by the 203 relaxation code. */ 204 205 /* A 16 bit switch table entry. This is generated for an expression 206 such as ``.word L1 - L2''. The offset holds the difference 207 between the reloc address and L2. */ 208 HOWTO (R_SH_SWITCH16, /* type */ 209 0, /* rightshift */ 210 1, /* size (0 = byte, 1 = short, 2 = long) */ 211 16, /* bitsize */ 212 FALSE, /* pc_relative */ 213 0, /* bitpos */ 214 complain_overflow_unsigned, /* complain_on_overflow */ 215 sh_elf64_ignore_reloc, /* special_function */ 216 "R_SH_SWITCH16", /* name */ 217 FALSE, /* partial_inplace */ 218 0, /* src_mask */ 219 0, /* dst_mask */ 220 TRUE), /* pcrel_offset */ 221 222 /* A 32 bit switch table entry. This is generated for an expression 223 such as ``.long L1 - L2''. The offset holds the difference 224 between the reloc address and L2. */ 225 HOWTO (R_SH_SWITCH32, /* type */ 226 0, /* rightshift */ 227 2, /* size (0 = byte, 1 = short, 2 = long) */ 228 32, /* bitsize */ 229 FALSE, /* pc_relative */ 230 0, /* bitpos */ 231 complain_overflow_unsigned, /* complain_on_overflow */ 232 sh_elf64_ignore_reloc, /* special_function */ 233 "R_SH_SWITCH32", /* name */ 234 FALSE, /* partial_inplace */ 235 0, /* src_mask */ 236 0, /* dst_mask */ 237 TRUE), /* pcrel_offset */ 238 239 /* For 32-bit sh, this is R_SH_USES. */ 240 EMPTY_HOWTO (27), 241 242 /* For 32-bit sh, this is R_SH_COUNT. */ 243 EMPTY_HOWTO (28), 244 245 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation, 246 this might be emitted. When linker relaxation is implemented, we 247 might want to use it. */ 248 EMPTY_HOWTO (29), 249 250 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation, 251 this might be emitted. When linker relaxation is implemented, we 252 might want to use it. */ 253 EMPTY_HOWTO (30), 254 255 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation, 256 this might be emitted. When linker relaxation is implemented, we 257 might want to use it. */ 258 EMPTY_HOWTO (31), 259 260 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation, 261 this might be emitted. When linker relaxation is implemented, we 262 might want to use it. */ 263 EMPTY_HOWTO (32), 264 265 /* An 8 bit switch table entry. This is generated for an expression 266 such as ``.word L1 - L2''. The offset holds the difference 267 between the reloc address and L2. */ 268 HOWTO (R_SH_SWITCH8, /* type */ 269 0, /* rightshift */ 270 0, /* size (0 = byte, 1 = short, 2 = long) */ 271 8, /* bitsize */ 272 FALSE, /* pc_relative */ 273 0, /* bitpos */ 274 complain_overflow_unsigned, /* complain_on_overflow */ 275 sh_elf64_ignore_reloc, /* special_function */ 276 "R_SH_SWITCH8", /* name */ 277 FALSE, /* partial_inplace */ 278 0, /* src_mask */ 279 0, /* dst_mask */ 280 TRUE), /* pcrel_offset */ 281 282 /* GNU extension to record C++ vtable hierarchy */ 283 HOWTO (R_SH_GNU_VTINHERIT, /* type */ 284 0, /* rightshift */ 285 2, /* size (0 = byte, 1 = short, 2 = long) */ 286 0, /* bitsize */ 287 FALSE, /* pc_relative */ 288 0, /* bitpos */ 289 complain_overflow_dont, /* complain_on_overflow */ 290 NULL, /* special_function */ 291 "R_SH_GNU_VTINHERIT", /* name */ 292 FALSE, /* partial_inplace */ 293 0, /* src_mask */ 294 0, /* dst_mask */ 295 FALSE), /* pcrel_offset */ 296 297 /* GNU extension to record C++ vtable member usage */ 298 HOWTO (R_SH_GNU_VTENTRY, /* type */ 299 0, /* rightshift */ 300 2, /* size (0 = byte, 1 = short, 2 = long) */ 301 0, /* bitsize */ 302 FALSE, /* pc_relative */ 303 0, /* bitpos */ 304 complain_overflow_dont, /* complain_on_overflow */ 305 _bfd_elf_rel_vtable_reloc_fn, /* special_function */ 306 "R_SH_GNU_VTENTRY", /* name */ 307 FALSE, /* partial_inplace */ 308 0, /* src_mask */ 309 0, /* dst_mask */ 310 FALSE), /* pcrel_offset */ 311 312 /* For 32-bit sh, this is R_SH_LOOP_START. */ 313 EMPTY_HOWTO (36), 314 315 /* For 32-bit sh, this is R_SH_LOOP_END. */ 316 EMPTY_HOWTO (37), 317 318 EMPTY_HOWTO (38), 319 EMPTY_HOWTO (39), 320 EMPTY_HOWTO (40), 321 EMPTY_HOWTO (41), 322 EMPTY_HOWTO (42), 323 EMPTY_HOWTO (43), 324 EMPTY_HOWTO (44), 325 326 /* Used in SHLLI.L and SHLRI.L. */ 327 HOWTO (R_SH_DIR5U, /* type */ 328 0, /* rightshift */ 329 2, /* size (0 = byte, 1 = short, 2 = long) */ 330 5, /* bitsize */ 331 FALSE, /* pc_relative */ 332 10, /* bitpos */ 333 complain_overflow_unsigned, /* complain_on_overflow */ 334 bfd_elf_generic_reloc, /* special_function */ 335 "R_SH_DIR5U", /* name */ 336 FALSE, /* partial_inplace */ 337 0, /* src_mask */ 338 0xfc00, /* dst_mask */ 339 FALSE), /* pcrel_offset */ 340 341 /* Used in SHARI, SHLLI et al. */ 342 HOWTO (R_SH_DIR6U, /* type */ 343 0, /* rightshift */ 344 2, /* size (0 = byte, 1 = short, 2 = long) */ 345 6, /* bitsize */ 346 FALSE, /* pc_relative */ 347 10, /* bitpos */ 348 complain_overflow_unsigned, /* complain_on_overflow */ 349 bfd_elf_generic_reloc, /* special_function */ 350 "R_SH_DIR6U", /* name */ 351 FALSE, /* partial_inplace */ 352 0, /* src_mask */ 353 0xfc00, /* dst_mask */ 354 FALSE), /* pcrel_offset */ 355 356 /* Used in BxxI, LDHI.L et al. */ 357 HOWTO (R_SH_DIR6S, /* type */ 358 0, /* rightshift */ 359 2, /* size (0 = byte, 1 = short, 2 = long) */ 360 6, /* bitsize */ 361 FALSE, /* pc_relative */ 362 10, /* bitpos */ 363 complain_overflow_signed, /* complain_on_overflow */ 364 bfd_elf_generic_reloc, /* special_function */ 365 "R_SH_DIR6S", /* name */ 366 FALSE, /* partial_inplace */ 367 0, /* src_mask */ 368 0xfc00, /* dst_mask */ 369 FALSE), /* pcrel_offset */ 370 371 /* Used in ADDI, ANDI et al. */ 372 HOWTO (R_SH_DIR10S, /* type */ 373 0, /* rightshift */ 374 2, /* size (0 = byte, 1 = short, 2 = long) */ 375 10, /* bitsize */ 376 FALSE, /* pc_relative */ 377 10, /* bitpos */ 378 complain_overflow_signed, /* complain_on_overflow */ 379 bfd_elf_generic_reloc, /* special_function */ 380 "R_SH_DIR10S", /* name */ 381 FALSE, /* partial_inplace */ 382 0, /* src_mask */ 383 0xffc00, /* dst_mask */ 384 FALSE), /* pcrel_offset */ 385 386 /* Used in LD.UW, ST.W et al. */ 387 HOWTO (R_SH_DIR10SW, /* type */ 388 1, /* rightshift */ 389 2, /* size (0 = byte, 1 = short, 2 = long) */ 390 11, /* bitsize */ 391 FALSE, /* pc_relative */ 392 10, /* bitpos */ 393 complain_overflow_signed, /* complain_on_overflow */ 394 bfd_elf_generic_reloc, /* special_function */ 395 "R_SH_DIR10SW", /* name */ 396 FALSE, /* partial_inplace */ 397 0, /* src_mask */ 398 0xffc00, /* dst_mask */ 399 FALSE), /* pcrel_offset */ 400 401 /* Used in LD.L, FLD.S et al. */ 402 HOWTO (R_SH_DIR10SL, /* type */ 403 2, /* rightshift */ 404 2, /* size (0 = byte, 1 = short, 2 = long) */ 405 12, /* bitsize */ 406 FALSE, /* pc_relative */ 407 10, /* bitpos */ 408 complain_overflow_signed, /* complain_on_overflow */ 409 bfd_elf_generic_reloc, /* special_function */ 410 "R_SH_DIR10SL", /* name */ 411 FALSE, /* partial_inplace */ 412 0, /* src_mask */ 413 0xffc00, /* dst_mask */ 414 FALSE), /* pcrel_offset */ 415 416 /* Used in FLD.D, FST.P et al. */ 417 HOWTO (R_SH_DIR10SQ, /* type */ 418 3, /* rightshift */ 419 2, /* size (0 = byte, 1 = short, 2 = long) */ 420 13, /* bitsize */ 421 FALSE, /* pc_relative */ 422 10, /* bitpos */ 423 complain_overflow_signed, /* complain_on_overflow */ 424 bfd_elf_generic_reloc, /* special_function */ 425 "R_SH_DIR10SQ", /* name */ 426 FALSE, /* partial_inplace */ 427 0, /* src_mask */ 428 0xffc00, /* dst_mask */ 429 FALSE), /* pcrel_offset */ 430 431 EMPTY_HOWTO (52), 432 EMPTY_HOWTO (53), 433 EMPTY_HOWTO (54), 434 EMPTY_HOWTO (55), 435 EMPTY_HOWTO (56), 436 EMPTY_HOWTO (57), 437 EMPTY_HOWTO (58), 438 EMPTY_HOWTO (59), 439 EMPTY_HOWTO (60), 440 EMPTY_HOWTO (61), 441 EMPTY_HOWTO (62), 442 EMPTY_HOWTO (63), 443 EMPTY_HOWTO (64), 444 EMPTY_HOWTO (65), 445 EMPTY_HOWTO (66), 446 EMPTY_HOWTO (67), 447 EMPTY_HOWTO (68), 448 EMPTY_HOWTO (69), 449 EMPTY_HOWTO (70), 450 EMPTY_HOWTO (71), 451 EMPTY_HOWTO (72), 452 EMPTY_HOWTO (73), 453 EMPTY_HOWTO (74), 454 EMPTY_HOWTO (75), 455 EMPTY_HOWTO (76), 456 EMPTY_HOWTO (77), 457 EMPTY_HOWTO (78), 458 EMPTY_HOWTO (79), 459 EMPTY_HOWTO (80), 460 EMPTY_HOWTO (81), 461 EMPTY_HOWTO (82), 462 EMPTY_HOWTO (83), 463 EMPTY_HOWTO (84), 464 EMPTY_HOWTO (85), 465 EMPTY_HOWTO (86), 466 EMPTY_HOWTO (87), 467 EMPTY_HOWTO (88), 468 EMPTY_HOWTO (89), 469 EMPTY_HOWTO (90), 470 EMPTY_HOWTO (91), 471 EMPTY_HOWTO (92), 472 EMPTY_HOWTO (93), 473 EMPTY_HOWTO (94), 474 EMPTY_HOWTO (95), 475 EMPTY_HOWTO (96), 476 EMPTY_HOWTO (97), 477 EMPTY_HOWTO (98), 478 EMPTY_HOWTO (99), 479 EMPTY_HOWTO (100), 480 EMPTY_HOWTO (101), 481 EMPTY_HOWTO (102), 482 EMPTY_HOWTO (103), 483 EMPTY_HOWTO (104), 484 EMPTY_HOWTO (105), 485 EMPTY_HOWTO (106), 486 EMPTY_HOWTO (107), 487 EMPTY_HOWTO (108), 488 EMPTY_HOWTO (109), 489 EMPTY_HOWTO (110), 490 EMPTY_HOWTO (111), 491 EMPTY_HOWTO (112), 492 EMPTY_HOWTO (113), 493 EMPTY_HOWTO (114), 494 EMPTY_HOWTO (115), 495 EMPTY_HOWTO (116), 496 EMPTY_HOWTO (117), 497 EMPTY_HOWTO (118), 498 EMPTY_HOWTO (119), 499 EMPTY_HOWTO (120), 500 EMPTY_HOWTO (121), 501 EMPTY_HOWTO (122), 502 EMPTY_HOWTO (123), 503 EMPTY_HOWTO (124), 504 EMPTY_HOWTO (125), 505 EMPTY_HOWTO (126), 506 EMPTY_HOWTO (127), 507 EMPTY_HOWTO (128), 508 EMPTY_HOWTO (129), 509 EMPTY_HOWTO (130), 510 EMPTY_HOWTO (131), 511 EMPTY_HOWTO (132), 512 EMPTY_HOWTO (133), 513 EMPTY_HOWTO (134), 514 EMPTY_HOWTO (135), 515 EMPTY_HOWTO (136), 516 EMPTY_HOWTO (137), 517 EMPTY_HOWTO (138), 518 EMPTY_HOWTO (139), 519 EMPTY_HOWTO (140), 520 EMPTY_HOWTO (141), 521 EMPTY_HOWTO (142), 522 EMPTY_HOWTO (143), 523 EMPTY_HOWTO (144), 524 EMPTY_HOWTO (145), 525 EMPTY_HOWTO (146), 526 EMPTY_HOWTO (147), 527 EMPTY_HOWTO (148), 528 EMPTY_HOWTO (149), 529 EMPTY_HOWTO (150), 530 EMPTY_HOWTO (151), 531 EMPTY_HOWTO (152), 532 EMPTY_HOWTO (153), 533 EMPTY_HOWTO (154), 534 EMPTY_HOWTO (155), 535 EMPTY_HOWTO (156), 536 EMPTY_HOWTO (157), 537 EMPTY_HOWTO (158), 538 EMPTY_HOWTO (159), 539 540 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have 541 any dynamic linking support for 64-bit SH at present. */ 542 543 EMPTY_HOWTO (160), 544 EMPTY_HOWTO (161), 545 EMPTY_HOWTO (162), 546 EMPTY_HOWTO (163), 547 EMPTY_HOWTO (164), 548 EMPTY_HOWTO (165), 549 EMPTY_HOWTO (166), 550 EMPTY_HOWTO (167), 551 EMPTY_HOWTO (168), 552 553 /* Back to SH5 relocations. */ 554 /* Used in MOVI and SHORI (x & 65536). */ 555 HOWTO (R_SH_GOT_LOW16, /* type */ 556 0, /* rightshift */ 557 2, /* size (0 = byte, 1 = short, 2 = long) */ 558 64, /* bitsize */ 559 FALSE, /* pc_relative */ 560 10, /* bitpos */ 561 complain_overflow_dont, /* complain_on_overflow */ 562 bfd_elf_generic_reloc, /* special_function */ 563 "R_SH_GOT_LOW16", /* name */ 564 FALSE, /* partial_inplace */ 565 0, /* src_mask */ 566 0x3fffc00, /* dst_mask */ 567 FALSE), /* pcrel_offset */ 568 569 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 570 HOWTO (R_SH_GOT_MEDLOW16, /* type */ 571 16, /* rightshift */ 572 2, /* size (0 = byte, 1 = short, 2 = long) */ 573 64, /* bitsize */ 574 FALSE, /* pc_relative */ 575 10, /* bitpos */ 576 complain_overflow_dont, /* complain_on_overflow */ 577 bfd_elf_generic_reloc, /* special_function */ 578 "R_SH_GOT_MEDLOW16", /* name */ 579 FALSE, /* partial_inplace */ 580 0, /* src_mask */ 581 0x3fffc00, /* dst_mask */ 582 FALSE), /* pcrel_offset */ 583 584 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 585 HOWTO (R_SH_GOT_MEDHI16, /* type */ 586 32, /* rightshift */ 587 2, /* size (0 = byte, 1 = short, 2 = long) */ 588 64, /* bitsize */ 589 FALSE, /* pc_relative */ 590 10, /* bitpos */ 591 complain_overflow_dont, /* complain_on_overflow */ 592 bfd_elf_generic_reloc, /* special_function */ 593 "R_SH_GOT_MEDHI16", /* name */ 594 FALSE, /* partial_inplace */ 595 0, /* src_mask */ 596 0x3fffc00, /* dst_mask */ 597 FALSE), /* pcrel_offset */ 598 599 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 600 HOWTO (R_SH_GOT_HI16, /* type */ 601 48, /* rightshift */ 602 2, /* size (0 = byte, 1 = short, 2 = long) */ 603 64, /* bitsize */ 604 FALSE, /* pc_relative */ 605 10, /* bitpos */ 606 complain_overflow_dont, /* complain_on_overflow */ 607 bfd_elf_generic_reloc, /* special_function */ 608 "R_SH_GOT_HI16", /* name */ 609 FALSE, /* partial_inplace */ 610 0, /* src_mask */ 611 0x3fffc00, /* dst_mask */ 612 FALSE), /* pcrel_offset */ 613 614 /* Used in MOVI and SHORI (x & 65536). */ 615 HOWTO (R_SH_GOTPLT_LOW16, /* type */ 616 0, /* rightshift */ 617 2, /* size (0 = byte, 1 = short, 2 = long) */ 618 64, /* bitsize */ 619 FALSE, /* pc_relative */ 620 10, /* bitpos */ 621 complain_overflow_dont, /* complain_on_overflow */ 622 bfd_elf_generic_reloc, /* special_function */ 623 "R_SH_GOTPLT_LOW16", /* name */ 624 FALSE, /* partial_inplace */ 625 0, /* src_mask */ 626 0x3fffc00, /* dst_mask */ 627 FALSE), /* pcrel_offset */ 628 629 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 630 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */ 631 16, /* rightshift */ 632 2, /* size (0 = byte, 1 = short, 2 = long) */ 633 64, /* bitsize */ 634 FALSE, /* pc_relative */ 635 10, /* bitpos */ 636 complain_overflow_dont, /* complain_on_overflow */ 637 bfd_elf_generic_reloc, /* special_function */ 638 "R_SH_GOTPLT_MEDLOW16", /* name */ 639 FALSE, /* partial_inplace */ 640 0, /* src_mask */ 641 0x3fffc00, /* dst_mask */ 642 FALSE), /* pcrel_offset */ 643 644 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 645 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */ 646 32, /* rightshift */ 647 2, /* size (0 = byte, 1 = short, 2 = long) */ 648 64, /* bitsize */ 649 FALSE, /* pc_relative */ 650 10, /* bitpos */ 651 complain_overflow_dont, /* complain_on_overflow */ 652 bfd_elf_generic_reloc, /* special_function */ 653 "R_SH_GOTPLT_MEDHI16", /* name */ 654 FALSE, /* partial_inplace */ 655 0, /* src_mask */ 656 0x3fffc00, /* dst_mask */ 657 FALSE), /* pcrel_offset */ 658 659 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 660 HOWTO (R_SH_GOTPLT_HI16, /* type */ 661 48, /* rightshift */ 662 2, /* size (0 = byte, 1 = short, 2 = long) */ 663 64, /* bitsize */ 664 FALSE, /* pc_relative */ 665 10, /* bitpos */ 666 complain_overflow_dont, /* complain_on_overflow */ 667 bfd_elf_generic_reloc, /* special_function */ 668 "R_SH_GOTPLT_HI16", /* name */ 669 FALSE, /* partial_inplace */ 670 0, /* src_mask */ 671 0x3fffc00, /* dst_mask */ 672 FALSE), /* pcrel_offset */ 673 674 /* Used in MOVI and SHORI (x & 65536). */ 675 HOWTO (R_SH_PLT_LOW16, /* type */ 676 0, /* rightshift */ 677 2, /* size (0 = byte, 1 = short, 2 = long) */ 678 64, /* bitsize */ 679 TRUE, /* pc_relative */ 680 10, /* bitpos */ 681 complain_overflow_dont, /* complain_on_overflow */ 682 bfd_elf_generic_reloc, /* special_function */ 683 "R_SH_PLT_LOW16", /* name */ 684 FALSE, /* partial_inplace */ 685 0, /* src_mask */ 686 0x3fffc00, /* dst_mask */ 687 TRUE), /* pcrel_offset */ 688 689 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 690 HOWTO (R_SH_PLT_MEDLOW16, /* type */ 691 16, /* rightshift */ 692 2, /* size (0 = byte, 1 = short, 2 = long) */ 693 64, /* bitsize */ 694 TRUE, /* pc_relative */ 695 10, /* bitpos */ 696 complain_overflow_dont, /* complain_on_overflow */ 697 bfd_elf_generic_reloc, /* special_function */ 698 "R_SH_PLT_MEDLOW16", /* name */ 699 FALSE, /* partial_inplace */ 700 0, /* src_mask */ 701 0x3fffc00, /* dst_mask */ 702 TRUE), /* pcrel_offset */ 703 704 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 705 HOWTO (R_SH_PLT_MEDHI16, /* type */ 706 32, /* rightshift */ 707 2, /* size (0 = byte, 1 = short, 2 = long) */ 708 64, /* bitsize */ 709 TRUE, /* pc_relative */ 710 10, /* bitpos */ 711 complain_overflow_dont, /* complain_on_overflow */ 712 bfd_elf_generic_reloc, /* special_function */ 713 "R_SH_PLT_MEDHI16", /* name */ 714 FALSE, /* partial_inplace */ 715 0, /* src_mask */ 716 0x3fffc00, /* dst_mask */ 717 TRUE), /* pcrel_offset */ 718 719 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 720 HOWTO (R_SH_PLT_HI16, /* type */ 721 48, /* rightshift */ 722 2, /* size (0 = byte, 1 = short, 2 = long) */ 723 64, /* bitsize */ 724 TRUE, /* pc_relative */ 725 10, /* bitpos */ 726 complain_overflow_dont, /* complain_on_overflow */ 727 bfd_elf_generic_reloc, /* special_function */ 728 "R_SH_PLT_HI16", /* name */ 729 FALSE, /* partial_inplace */ 730 0, /* src_mask */ 731 0x3fffc00, /* dst_mask */ 732 TRUE), /* pcrel_offset */ 733 734 /* Used in MOVI and SHORI (x & 65536). */ 735 HOWTO (R_SH_GOTOFF_LOW16, /* type */ 736 0, /* rightshift */ 737 2, /* size (0 = byte, 1 = short, 2 = long) */ 738 64, /* bitsize */ 739 FALSE, /* pc_relative */ 740 10, /* bitpos */ 741 complain_overflow_dont, /* complain_on_overflow */ 742 bfd_elf_generic_reloc, /* special_function */ 743 "R_SH_GOTOFF_LOW16", /* name */ 744 FALSE, /* partial_inplace */ 745 0, /* src_mask */ 746 0x3fffc00, /* dst_mask */ 747 FALSE), /* pcrel_offset */ 748 749 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 750 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */ 751 16, /* rightshift */ 752 2, /* size (0 = byte, 1 = short, 2 = long) */ 753 64, /* bitsize */ 754 FALSE, /* pc_relative */ 755 10, /* bitpos */ 756 complain_overflow_dont, /* complain_on_overflow */ 757 bfd_elf_generic_reloc, /* special_function */ 758 "R_SH_GOTOFF_MEDLOW16", /* name */ 759 FALSE, /* partial_inplace */ 760 0, /* src_mask */ 761 0x3fffc00, /* dst_mask */ 762 FALSE), /* pcrel_offset */ 763 764 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 765 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */ 766 32, /* rightshift */ 767 2, /* size (0 = byte, 1 = short, 2 = long) */ 768 64, /* bitsize */ 769 FALSE, /* pc_relative */ 770 10, /* bitpos */ 771 complain_overflow_dont, /* complain_on_overflow */ 772 bfd_elf_generic_reloc, /* special_function */ 773 "R_SH_GOTOFF_MEDHI16", /* name */ 774 FALSE, /* partial_inplace */ 775 0, /* src_mask */ 776 0x3fffc00, /* dst_mask */ 777 FALSE), /* pcrel_offset */ 778 779 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 780 HOWTO (R_SH_GOTOFF_HI16, /* type */ 781 48, /* rightshift */ 782 2, /* size (0 = byte, 1 = short, 2 = long) */ 783 64, /* bitsize */ 784 FALSE, /* pc_relative */ 785 10, /* bitpos */ 786 complain_overflow_dont, /* complain_on_overflow */ 787 bfd_elf_generic_reloc, /* special_function */ 788 "R_SH_GOTOFF_HI16", /* name */ 789 FALSE, /* partial_inplace */ 790 0, /* src_mask */ 791 0x3fffc00, /* dst_mask */ 792 FALSE), /* pcrel_offset */ 793 794 /* Used in MOVI and SHORI (x & 65536). */ 795 HOWTO (R_SH_GOTPC_LOW16, /* type */ 796 0, /* rightshift */ 797 2, /* size (0 = byte, 1 = short, 2 = long) */ 798 64, /* bitsize */ 799 TRUE, /* pc_relative */ 800 10, /* bitpos */ 801 complain_overflow_dont, /* complain_on_overflow */ 802 bfd_elf_generic_reloc, /* special_function */ 803 "R_SH_GOTPC_LOW16", /* name */ 804 FALSE, /* partial_inplace */ 805 0, /* src_mask */ 806 0x3fffc00, /* dst_mask */ 807 TRUE), /* pcrel_offset */ 808 809 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 810 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */ 811 16, /* rightshift */ 812 2, /* size (0 = byte, 1 = short, 2 = long) */ 813 64, /* bitsize */ 814 TRUE, /* pc_relative */ 815 10, /* bitpos */ 816 complain_overflow_dont, /* complain_on_overflow */ 817 bfd_elf_generic_reloc, /* special_function */ 818 "R_SH_GOTPC_MEDLOW16", /* name */ 819 FALSE, /* partial_inplace */ 820 0, /* src_mask */ 821 0x3fffc00, /* dst_mask */ 822 TRUE), /* pcrel_offset */ 823 824 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 825 HOWTO (R_SH_GOTPC_MEDHI16, /* type */ 826 32, /* rightshift */ 827 2, /* size (0 = byte, 1 = short, 2 = long) */ 828 64, /* bitsize */ 829 TRUE, /* pc_relative */ 830 10, /* bitpos */ 831 complain_overflow_dont, /* complain_on_overflow */ 832 bfd_elf_generic_reloc, /* special_function */ 833 "R_SH_GOTPC_MEDHI16", /* name */ 834 FALSE, /* partial_inplace */ 835 0, /* src_mask */ 836 0x3fffc00, /* dst_mask */ 837 TRUE), /* pcrel_offset */ 838 839 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 840 HOWTO (R_SH_GOTPC_HI16, /* type */ 841 48, /* rightshift */ 842 2, /* size (0 = byte, 1 = short, 2 = long) */ 843 64, /* bitsize */ 844 TRUE, /* pc_relative */ 845 10, /* bitpos */ 846 complain_overflow_dont, /* complain_on_overflow */ 847 bfd_elf_generic_reloc, /* special_function */ 848 "R_SH_GOTPC_HI16", /* name */ 849 FALSE, /* partial_inplace */ 850 0, /* src_mask */ 851 0x3fffc00, /* dst_mask */ 852 TRUE), /* pcrel_offset */ 853 854 /* Used in LD.L, FLD.S et al. */ 855 HOWTO (R_SH_GOT10BY4, /* type */ 856 2, /* rightshift */ 857 2, /* size (0 = byte, 1 = short, 2 = long) */ 858 12, /* bitsize */ 859 FALSE, /* pc_relative */ 860 10, /* bitpos */ 861 complain_overflow_signed, /* complain_on_overflow */ 862 bfd_elf_generic_reloc, /* special_function */ 863 "R_SH_GOT10BY4", /* name */ 864 FALSE, /* partial_inplace */ 865 0, /* src_mask */ 866 0xffc00, /* dst_mask */ 867 FALSE), /* pcrel_offset */ 868 869 /* Used in LD.L, FLD.S et al. */ 870 HOWTO (R_SH_GOTPLT10BY4, /* type */ 871 2, /* rightshift */ 872 2, /* size (0 = byte, 1 = short, 2 = long) */ 873 12, /* bitsize */ 874 FALSE, /* pc_relative */ 875 10, /* bitpos */ 876 complain_overflow_signed, /* complain_on_overflow */ 877 bfd_elf_generic_reloc, /* special_function */ 878 "R_SH_GOTPLT10BY4", /* name */ 879 FALSE, /* partial_inplace */ 880 0, /* src_mask */ 881 0xffc00, /* dst_mask */ 882 FALSE), /* pcrel_offset */ 883 884 /* Used in FLD.D, FST.P et al. */ 885 HOWTO (R_SH_GOT10BY8, /* type */ 886 3, /* rightshift */ 887 2, /* size (0 = byte, 1 = short, 2 = long) */ 888 13, /* bitsize */ 889 FALSE, /* pc_relative */ 890 10, /* bitpos */ 891 complain_overflow_signed, /* complain_on_overflow */ 892 bfd_elf_generic_reloc, /* special_function */ 893 "R_SH_GOT10BY8", /* name */ 894 FALSE, /* partial_inplace */ 895 0, /* src_mask */ 896 0xffc00, /* dst_mask */ 897 FALSE), /* pcrel_offset */ 898 899 /* Used in FLD.D, FST.P et al. */ 900 HOWTO (R_SH_GOTPLT10BY8, /* type */ 901 3, /* rightshift */ 902 2, /* size (0 = byte, 1 = short, 2 = long) */ 903 13, /* bitsize */ 904 FALSE, /* pc_relative */ 905 10, /* bitpos */ 906 complain_overflow_signed, /* complain_on_overflow */ 907 bfd_elf_generic_reloc, /* special_function */ 908 "R_SH_GOTPLT10BY8", /* name */ 909 FALSE, /* partial_inplace */ 910 0, /* src_mask */ 911 0xffc00, /* dst_mask */ 912 FALSE), /* pcrel_offset */ 913 914 HOWTO (R_SH_COPY64, /* type */ 915 0, /* rightshift */ 916 4, /* size (0 = byte, 1 = short, 2 = long) */ 917 64, /* bitsize */ 918 FALSE, /* pc_relative */ 919 0, /* bitpos */ 920 complain_overflow_dont, /* complain_on_overflow */ 921 bfd_elf_generic_reloc, /* special_function */ 922 "R_SH_COPY64", /* name */ 923 FALSE, /* partial_inplace */ 924 0, /* src_mask */ 925 ((bfd_vma) 0) - 1, /* dst_mask */ 926 FALSE), /* pcrel_offset */ 927 928 HOWTO (R_SH_GLOB_DAT64, /* type */ 929 0, /* rightshift */ 930 4, /* size (0 = byte, 1 = short, 2 = long) */ 931 64, /* bitsize */ 932 FALSE, /* pc_relative */ 933 0, /* bitpos */ 934 complain_overflow_dont, /* complain_on_overflow */ 935 bfd_elf_generic_reloc, /* special_function */ 936 "R_SH_GLOB_DAT64", /* name */ 937 FALSE, /* partial_inplace */ 938 0, /* src_mask */ 939 ((bfd_vma) 0) - 1, /* dst_mask */ 940 FALSE), /* pcrel_offset */ 941 942 HOWTO (R_SH_JMP_SLOT64, /* type */ 943 0, /* rightshift */ 944 4, /* size (0 = byte, 1 = short, 2 = long) */ 945 64, /* bitsize */ 946 FALSE, /* pc_relative */ 947 0, /* bitpos */ 948 complain_overflow_dont, /* complain_on_overflow */ 949 bfd_elf_generic_reloc, /* special_function */ 950 "R_SH_JMP_SLOT64", /* name */ 951 FALSE, /* partial_inplace */ 952 0, /* src_mask */ 953 ((bfd_vma) 0) - 1, /* dst_mask */ 954 FALSE), /* pcrel_offset */ 955 956 HOWTO (R_SH_RELATIVE64, /* type */ 957 0, /* rightshift */ 958 4, /* size (0 = byte, 1 = short, 2 = long) */ 959 64, /* bitsize */ 960 FALSE, /* pc_relative */ 961 0, /* bitpos */ 962 complain_overflow_dont, /* complain_on_overflow */ 963 bfd_elf_generic_reloc, /* special_function */ 964 "R_SH_RELATIVE64", /* name */ 965 FALSE, /* partial_inplace */ 966 0, /* src_mask */ 967 ((bfd_vma) 0) - 1, /* dst_mask */ 968 FALSE), /* pcrel_offset */ 969 970 EMPTY_HOWTO (197), 971 EMPTY_HOWTO (198), 972 EMPTY_HOWTO (199), 973 EMPTY_HOWTO (200), 974 EMPTY_HOWTO (201), 975 EMPTY_HOWTO (202), 976 EMPTY_HOWTO (203), 977 EMPTY_HOWTO (204), 978 EMPTY_HOWTO (205), 979 EMPTY_HOWTO (206), 980 EMPTY_HOWTO (207), 981 EMPTY_HOWTO (208), 982 EMPTY_HOWTO (209), 983 EMPTY_HOWTO (210), 984 EMPTY_HOWTO (211), 985 EMPTY_HOWTO (212), 986 EMPTY_HOWTO (213), 987 EMPTY_HOWTO (214), 988 EMPTY_HOWTO (215), 989 EMPTY_HOWTO (216), 990 EMPTY_HOWTO (217), 991 EMPTY_HOWTO (218), 992 EMPTY_HOWTO (219), 993 EMPTY_HOWTO (220), 994 EMPTY_HOWTO (221), 995 EMPTY_HOWTO (222), 996 EMPTY_HOWTO (223), 997 EMPTY_HOWTO (224), 998 EMPTY_HOWTO (225), 999 EMPTY_HOWTO (226), 1000 EMPTY_HOWTO (227), 1001 EMPTY_HOWTO (228), 1002 EMPTY_HOWTO (229), 1003 EMPTY_HOWTO (230), 1004 EMPTY_HOWTO (231), 1005 EMPTY_HOWTO (232), 1006 EMPTY_HOWTO (233), 1007 EMPTY_HOWTO (234), 1008 EMPTY_HOWTO (235), 1009 EMPTY_HOWTO (236), 1010 EMPTY_HOWTO (237), 1011 EMPTY_HOWTO (238), 1012 EMPTY_HOWTO (239), 1013 EMPTY_HOWTO (240), 1014 EMPTY_HOWTO (241), 1015 1016 /* Relocations for SHmedia code. None of these are partial_inplace or 1017 use the field being relocated. */ 1018 1019 /* The assembler will generate this reloc before a block of SHmedia 1020 instructions. A section should be processed as assuming it contains 1021 data, unless this reloc is seen. Note that a block of SHcompact 1022 instructions are instead preceded by R_SH_CODE. 1023 This is currently not implemented, but should be used for SHmedia 1024 linker relaxation. */ 1025 HOWTO (R_SH_SHMEDIA_CODE, /* type */ 1026 0, /* rightshift */ 1027 1, /* size (0 = byte, 1 = short, 2 = long) */ 1028 0, /* bitsize */ 1029 FALSE, /* pc_relative */ 1030 0, /* bitpos */ 1031 complain_overflow_unsigned, /* complain_on_overflow */ 1032 sh_elf64_ignore_reloc, /* special_function */ 1033 "R_SH_SHMEDIA_CODE", /* name */ 1034 FALSE, /* partial_inplace */ 1035 0, /* src_mask */ 1036 0, /* dst_mask */ 1037 FALSE), /* pcrel_offset */ 1038 1039 /* The assembler will generate this reloc at a PTA or PTB instruction, 1040 and the linker checks the right type of target, or changes a PTA to a 1041 PTB, if the original insn was PT. */ 1042 HOWTO (R_SH_PT_16, /* type */ 1043 2, /* rightshift */ 1044 2, /* size (0 = byte, 1 = short, 2 = long) */ 1045 18, /* bitsize */ 1046 TRUE, /* pc_relative */ 1047 10, /* bitpos */ 1048 complain_overflow_signed, /* complain_on_overflow */ 1049 bfd_elf_generic_reloc, /* special_function */ 1050 "R_SH_PT_16", /* name */ 1051 FALSE, /* partial_inplace */ 1052 0, /* src_mask */ 1053 0x3fffc00, /* dst_mask */ 1054 TRUE), /* pcrel_offset */ 1055 1056 /* Used in unexpanded MOVI. */ 1057 HOWTO (R_SH_IMMS16, /* type */ 1058 0, /* rightshift */ 1059 2, /* size (0 = byte, 1 = short, 2 = long) */ 1060 16, /* bitsize */ 1061 FALSE, /* pc_relative */ 1062 10, /* bitpos */ 1063 complain_overflow_signed, /* complain_on_overflow */ 1064 bfd_elf_generic_reloc, /* special_function */ 1065 "R_SH_IMMS16", /* name */ 1066 FALSE, /* partial_inplace */ 1067 0, /* src_mask */ 1068 0x3fffc00, /* dst_mask */ 1069 FALSE), /* pcrel_offset */ 1070 1071 /* Used in SHORI. */ 1072 HOWTO (R_SH_IMMU16, /* type */ 1073 0, /* rightshift */ 1074 2, /* size (0 = byte, 1 = short, 2 = long) */ 1075 16, /* bitsize */ 1076 FALSE, /* pc_relative */ 1077 10, /* bitpos */ 1078 complain_overflow_unsigned, /* complain_on_overflow */ 1079 bfd_elf_generic_reloc, /* special_function */ 1080 "R_SH_IMMU16", /* name */ 1081 FALSE, /* partial_inplace */ 1082 0, /* src_mask */ 1083 0x3fffc00, /* dst_mask */ 1084 FALSE), /* pcrel_offset */ 1085 1086 /* Used in MOVI and SHORI (x & 65536). */ 1087 HOWTO (R_SH_IMM_LOW16, /* type */ 1088 0, /* rightshift */ 1089 2, /* size (0 = byte, 1 = short, 2 = long) */ 1090 64, /* bitsize */ 1091 FALSE, /* pc_relative */ 1092 10, /* bitpos */ 1093 complain_overflow_dont, /* complain_on_overflow */ 1094 bfd_elf_generic_reloc, /* special_function */ 1095 "R_SH_IMM_LOW16", /* name */ 1096 FALSE, /* partial_inplace */ 1097 0, /* src_mask */ 1098 0x3fffc00, /* dst_mask */ 1099 FALSE), /* pcrel_offset */ 1100 1101 /* Used in MOVI and SHORI ((x - $) & 65536). */ 1102 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */ 1103 0, /* rightshift */ 1104 2, /* size (0 = byte, 1 = short, 2 = long) */ 1105 64, /* bitsize */ 1106 TRUE, /* pc_relative */ 1107 10, /* bitpos */ 1108 complain_overflow_dont, /* complain_on_overflow */ 1109 bfd_elf_generic_reloc, /* special_function */ 1110 "R_SH_IMM_LOW16_PCREL", /* name */ 1111 FALSE, /* partial_inplace */ 1112 0, /* src_mask */ 1113 0x3fffc00, /* dst_mask */ 1114 TRUE), /* pcrel_offset */ 1115 1116 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 1117 HOWTO (R_SH_IMM_MEDLOW16, /* type */ 1118 16, /* rightshift */ 1119 2, /* size (0 = byte, 1 = short, 2 = long) */ 1120 64, /* bitsize */ 1121 FALSE, /* pc_relative */ 1122 10, /* bitpos */ 1123 complain_overflow_dont, /* complain_on_overflow */ 1124 bfd_elf_generic_reloc, /* special_function */ 1125 "R_SH_IMM_MEDLOW16", /* name */ 1126 FALSE, /* partial_inplace */ 1127 0, /* src_mask */ 1128 0x3fffc00, /* dst_mask */ 1129 FALSE), /* pcrel_offset */ 1130 1131 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */ 1132 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */ 1133 16, /* rightshift */ 1134 2, /* size (0 = byte, 1 = short, 2 = long) */ 1135 64, /* bitsize */ 1136 TRUE, /* pc_relative */ 1137 10, /* bitpos */ 1138 complain_overflow_dont, /* complain_on_overflow */ 1139 bfd_elf_generic_reloc, /* special_function */ 1140 "R_SH_IMM_MEDLOW16_PCREL", /* name */ 1141 FALSE, /* partial_inplace */ 1142 0, /* src_mask */ 1143 0x3fffc00, /* dst_mask */ 1144 TRUE), /* pcrel_offset */ 1145 1146 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 1147 HOWTO (R_SH_IMM_MEDHI16, /* type */ 1148 32, /* rightshift */ 1149 2, /* size (0 = byte, 1 = short, 2 = long) */ 1150 64, /* bitsize */ 1151 FALSE, /* pc_relative */ 1152 10, /* bitpos */ 1153 complain_overflow_dont, /* complain_on_overflow */ 1154 bfd_elf_generic_reloc, /* special_function */ 1155 "R_SH_IMM_MEDHI16", /* name */ 1156 FALSE, /* partial_inplace */ 1157 0, /* src_mask */ 1158 0x3fffc00, /* dst_mask */ 1159 FALSE), /* pcrel_offset */ 1160 1161 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */ 1162 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */ 1163 32, /* rightshift */ 1164 2, /* size (0 = byte, 1 = short, 2 = long) */ 1165 64, /* bitsize */ 1166 TRUE, /* pc_relative */ 1167 10, /* bitpos */ 1168 complain_overflow_dont, /* complain_on_overflow */ 1169 bfd_elf_generic_reloc, /* special_function */ 1170 "R_SH_IMM_MEDHI16_PCREL", /* name */ 1171 FALSE, /* partial_inplace */ 1172 0, /* src_mask */ 1173 0x3fffc00, /* dst_mask */ 1174 TRUE), /* pcrel_offset */ 1175 1176 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 1177 HOWTO (R_SH_IMM_HI16, /* type */ 1178 48, /* rightshift */ 1179 2, /* size (0 = byte, 1 = short, 2 = long) */ 1180 64, /* bitsize */ 1181 FALSE, /* pc_relative */ 1182 10, /* bitpos */ 1183 complain_overflow_dont, /* complain_on_overflow */ 1184 bfd_elf_generic_reloc, /* special_function */ 1185 "R_SH_IMM_HI16", /* name */ 1186 FALSE, /* partial_inplace */ 1187 0, /* src_mask */ 1188 0x3fffc00, /* dst_mask */ 1189 FALSE), /* pcrel_offset */ 1190 1191 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */ 1192 HOWTO (R_SH_IMM_HI16_PCREL, /* type */ 1193 48, /* rightshift */ 1194 2, /* size (0 = byte, 1 = short, 2 = long) */ 1195 64, /* bitsize */ 1196 TRUE, /* pc_relative */ 1197 10, /* bitpos */ 1198 complain_overflow_dont, /* complain_on_overflow */ 1199 bfd_elf_generic_reloc, /* special_function */ 1200 "R_SH_IMM_HI16_PCREL", /* name */ 1201 FALSE, /* partial_inplace */ 1202 0, /* src_mask */ 1203 0x3fffc00, /* dst_mask */ 1204 TRUE), /* pcrel_offset */ 1205 1206 /* For the .uaquad pseudo. */ 1207 HOWTO (R_SH_64, /* type */ 1208 0, /* rightshift */ 1209 4, /* size (0 = byte, 1 = short, 2 = long) */ 1210 64, /* bitsize */ 1211 FALSE, /* pc_relative */ 1212 0, /* bitpos */ 1213 complain_overflow_dont, /* complain_on_overflow */ 1214 bfd_elf_generic_reloc, /* special_function */ 1215 "R_SH_64", /* name */ 1216 FALSE, /* partial_inplace */ 1217 0, /* src_mask */ 1218 ((bfd_vma) 0) - 1, /* dst_mask */ 1219 FALSE), /* pcrel_offset */ 1220 1221 /* For the .uaquad pseudo, (x - $). */ 1222 HOWTO (R_SH_64_PCREL, /* type */ 1223 48, /* rightshift */ 1224 2, /* size (0 = byte, 1 = short, 2 = long) */ 1225 64, /* bitsize */ 1226 TRUE, /* pc_relative */ 1227 10, /* bitpos */ 1228 complain_overflow_dont, /* complain_on_overflow */ 1229 bfd_elf_generic_reloc, /* special_function */ 1230 "R_SH_64_PCREL", /* name */ 1231 FALSE, /* partial_inplace */ 1232 0, /* src_mask */ 1233 ((bfd_vma) 0) - 1, /* dst_mask */ 1234 TRUE), /* pcrel_offset */ 1235 1236 }; 1237 1238 /* This function is used for relocs which are only used for relaxing, 1239 which the linker should otherwise ignore. */ 1240 1241 static bfd_reloc_status_type 1242 sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, 1243 asymbol *symbol ATTRIBUTE_UNUSED, 1244 void *data ATTRIBUTE_UNUSED, asection *input_section, 1245 bfd *output_bfd, 1246 char **error_message ATTRIBUTE_UNUSED) 1247 { 1248 if (output_bfd != NULL) 1249 reloc_entry->address += input_section->output_offset; 1250 return bfd_reloc_ok; 1251 } 1252 1253 /* This function is used for normal relocs. This used to be like the COFF 1254 function, and is almost certainly incorrect for other ELF targets. 1255 1256 See sh_elf_reloc in elf32-sh.c for the original. */ 1257 1258 static bfd_reloc_status_type 1259 sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in, 1260 void *data, asection *input_section, bfd *output_bfd, 1261 char **error_message ATTRIBUTE_UNUSED) 1262 { 1263 unsigned long insn; 1264 bfd_vma sym_value; 1265 enum elf_sh_reloc_type r_type; 1266 bfd_vma addr = reloc_entry->address; 1267 bfd_byte *hit_data = addr + (bfd_byte *) data; 1268 1269 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; 1270 1271 if (output_bfd != NULL) 1272 { 1273 /* Partial linking--do nothing. */ 1274 reloc_entry->address += input_section->output_offset; 1275 return bfd_reloc_ok; 1276 } 1277 1278 if (symbol_in != NULL 1279 && bfd_is_und_section (symbol_in->section)) 1280 return bfd_reloc_undefined; 1281 1282 if (bfd_is_com_section (symbol_in->section)) 1283 sym_value = 0; 1284 else 1285 sym_value = (symbol_in->value + 1286 symbol_in->section->output_section->vma + 1287 symbol_in->section->output_offset); 1288 1289 switch (r_type) 1290 { 1291 case R_SH_DIR32: 1292 insn = bfd_get_32 (abfd, hit_data); 1293 insn += sym_value + reloc_entry->addend; 1294 bfd_put_32 (abfd, insn, hit_data); 1295 break; 1296 1297 default: 1298 abort (); 1299 break; 1300 } 1301 1302 return bfd_reloc_ok; 1303 } 1304 1305 /* This structure is used to map BFD reloc codes to SH ELF relocs. */ 1306 1307 struct elf_reloc_map 1308 { 1309 bfd_reloc_code_real_type bfd_reloc_val; 1310 unsigned char elf_reloc_val; 1311 }; 1312 1313 /* An array mapping BFD reloc codes to SH ELF relocs. */ 1314 1315 static const struct elf_reloc_map sh64_reloc_map[] = 1316 { 1317 { BFD_RELOC_NONE, R_SH_NONE }, 1318 { BFD_RELOC_32, R_SH_DIR32 }, 1319 { BFD_RELOC_CTOR, R_SH_DIR32 }, 1320 { BFD_RELOC_32_PCREL, R_SH_REL32 }, 1321 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, 1322 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, 1323 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, 1324 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, 1325 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, 1326 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 }, 1327 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 }, 1328 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 }, 1329 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 }, 1330 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 }, 1331 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 }, 1332 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 }, 1333 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 }, 1334 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 }, 1335 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 }, 1336 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 }, 1337 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 }, 1338 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 }, 1339 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 }, 1340 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 }, 1341 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 }, 1342 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 }, 1343 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 }, 1344 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 }, 1345 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 }, 1346 { BFD_RELOC_SH_COPY64, R_SH_COPY64 }, 1347 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 }, 1348 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 }, 1349 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 }, 1350 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 }, 1351 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 }, 1352 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 }, 1353 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 }, 1354 { BFD_RELOC_SH_PT_16, R_SH_PT_16 }, 1355 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE }, 1356 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U }, 1357 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S }, 1358 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U }, 1359 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S }, 1360 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW }, 1361 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL }, 1362 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ }, 1363 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 }, 1364 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 }, 1365 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 }, 1366 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL }, 1367 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 }, 1368 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL }, 1369 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 }, 1370 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL }, 1371 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 }, 1372 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL }, 1373 { BFD_RELOC_64, R_SH_64 }, 1374 { BFD_RELOC_64_PCREL, R_SH_64_PCREL }, 1375 }; 1376 1377 /* Given a BFD reloc code, return the howto structure for the 1378 corresponding SH ELf reloc. */ 1379 1380 static reloc_howto_type * 1381 sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1382 bfd_reloc_code_real_type code) 1383 { 1384 unsigned int i; 1385 1386 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++) 1387 { 1388 if (sh64_reloc_map[i].bfd_reloc_val == code) 1389 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val]; 1390 } 1391 1392 return NULL; 1393 } 1394 1395 /* Given an ELF reloc, fill in the howto field of a relent. 1396 1397 See sh_elf_info_to_howto in elf32-sh.c for the original. */ 1398 1399 static void 1400 sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, 1401 Elf_Internal_Rela *dst) 1402 { 1403 unsigned int r; 1404 1405 r = ELF64_R_TYPE (dst->r_info); 1406 1407 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL); 1408 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC); 1409 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2); 1410 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32); 1411 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4); 1412 1413 cache_ptr->howto = &sh_elf64_howto_table[r]; 1414 } 1415 1416 /* Relocate an SH ELF section. 1417 1418 See sh_elf_info_to_howto in elf32-sh.c for the original. */ 1419 1420 static bfd_boolean 1421 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, 1422 struct bfd_link_info *info, bfd *input_bfd, 1423 asection *input_section, bfd_byte *contents, 1424 Elf_Internal_Rela *relocs, 1425 Elf_Internal_Sym *local_syms, 1426 asection **local_sections) 1427 { 1428 Elf_Internal_Shdr *symtab_hdr; 1429 struct elf_link_hash_entry **sym_hashes; 1430 Elf_Internal_Rela *rel, *relend; 1431 bfd *dynobj; 1432 bfd_vma *local_got_offsets; 1433 asection *sgot; 1434 asection *sgotplt; 1435 asection *splt; 1436 asection *sreloc; 1437 bfd_vma disp, dropped; 1438 1439 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 1440 sym_hashes = elf_sym_hashes (input_bfd); 1441 dynobj = elf_hash_table (info)->dynobj; 1442 local_got_offsets = elf_local_got_offsets (input_bfd); 1443 1444 sgot = NULL; 1445 sgotplt = NULL; 1446 splt = NULL; 1447 sreloc = NULL; 1448 1449 rel = relocs; 1450 relend = relocs + input_section->reloc_count; 1451 for (; rel < relend; rel++) 1452 { 1453 int r_type; 1454 reloc_howto_type *howto; 1455 unsigned long r_symndx; 1456 Elf_Internal_Sym *sym; 1457 asection *sec; 1458 struct elf_link_hash_entry *h; 1459 bfd_vma relocation; 1460 bfd_vma addend = (bfd_vma)0; 1461 bfd_reloc_status_type r; 1462 int seen_stt_datalabel = 0; 1463 1464 r_symndx = ELF64_R_SYM (rel->r_info); 1465 1466 r_type = ELF64_R_TYPE (rel->r_info); 1467 1468 if (r_type == (int) R_SH_NONE) 1469 continue; 1470 1471 if (r_type < 0 1472 || r_type > R_SH_64_PCREL 1473 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC 1474 && r_type <= (int) R_SH_LAST_INVALID_RELOC) 1475 || (r_type >= (int) R_SH_DIR8WPN 1476 && r_type <= (int) R_SH_LAST_INVALID_RELOC) 1477 || (r_type >= (int) R_SH_GNU_VTINHERIT 1478 && r_type <= (int) R_SH_PSHL) 1479 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2 1480 && r_type <= R_SH_GOTPLT32) 1481 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 1482 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)) 1483 { 1484 bfd_set_error (bfd_error_bad_value); 1485 return FALSE; 1486 } 1487 1488 howto = sh_elf64_howto_table + r_type; 1489 1490 /* This is a final link. */ 1491 h = NULL; 1492 sym = NULL; 1493 sec = NULL; 1494 if (r_symndx < symtab_hdr->sh_info) 1495 { 1496 sym = local_syms + r_symndx; 1497 sec = local_sections[r_symndx]; 1498 relocation = ((sec->output_section->vma 1499 + sec->output_offset 1500 + sym->st_value) 1501 | ((sym->st_other & STO_SH5_ISA32) != 0)); 1502 1503 /* A local symbol never has STO_SH5_ISA32, so we don't need 1504 datalabel processing here. Make sure this does not change 1505 without notice. */ 1506 if ((sym->st_other & STO_SH5_ISA32) != 0) 1507 ((*info->callbacks->reloc_dangerous) 1508 (info, 1509 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"), 1510 input_bfd, input_section, rel->r_offset)); 1511 1512 if (info->relocatable) 1513 { 1514 /* This is a relocatable link. We don't have to change 1515 anything, unless the reloc is against a section symbol, 1516 in which case we have to adjust according to where the 1517 section symbol winds up in the output section. */ 1518 sym = local_syms + r_symndx; 1519 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) 1520 goto final_link_relocate; 1521 1522 continue; 1523 } 1524 else if (! howto->partial_inplace) 1525 { 1526 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); 1527 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0); 1528 } 1529 else if ((sec->flags & SEC_MERGE) 1530 && ELF_ST_TYPE (sym->st_info) == STT_SECTION) 1531 { 1532 asection *msec; 1533 1534 if (howto->rightshift || howto->src_mask != 0xffffffff) 1535 { 1536 (*_bfd_error_handler) 1537 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), 1538 input_bfd, input_section, 1539 (long) rel->r_offset, howto->name); 1540 return FALSE; 1541 } 1542 1543 addend = bfd_get_32 (input_bfd, contents + rel->r_offset); 1544 msec = sec; 1545 addend = 1546 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) 1547 - relocation; 1548 addend += msec->output_section->vma + msec->output_offset; 1549 bfd_put_32 (input_bfd, addend, contents + rel->r_offset); 1550 addend = 0; 1551 } 1552 } 1553 else 1554 { 1555 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */ 1556 1557 /* Section symbols are never (?) placed in the hash table, so 1558 we can just ignore hash relocations when creating a 1559 relocatable object file. */ 1560 if (info->relocatable) 1561 continue; 1562 1563 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 1564 while (h->root.type == bfd_link_hash_indirect 1565 || h->root.type == bfd_link_hash_warning) 1566 { 1567 /* If the reference passes a symbol marked with 1568 STT_DATALABEL, then any STO_SH5_ISA32 on the final value 1569 doesn't count. */ 1570 seen_stt_datalabel |= h->type == STT_DATALABEL; 1571 h = (struct elf_link_hash_entry *) h->root.u.i.link; 1572 } 1573 1574 if (h->root.type == bfd_link_hash_defined 1575 || h->root.type == bfd_link_hash_defweak) 1576 { 1577 sec = h->root.u.def.section; 1578 /* In these cases, we don't need the relocation value. 1579 We check specially because in some obscure cases 1580 sec->output_section will be NULL. */ 1581 if (r_type == R_SH_GOTPC_LOW16 1582 || r_type == R_SH_GOTPC_MEDLOW16 1583 || r_type == R_SH_GOTPC_MEDHI16 1584 || r_type == R_SH_GOTPC_HI16 1585 || ((r_type == R_SH_PLT_LOW16 1586 || r_type == R_SH_PLT_MEDLOW16 1587 || r_type == R_SH_PLT_MEDHI16 1588 || r_type == R_SH_PLT_HI16) 1589 && h->plt.offset != (bfd_vma) -1) 1590 || ((r_type == R_SH_GOT_LOW16 1591 || r_type == R_SH_GOT_MEDLOW16 1592 || r_type == R_SH_GOT_MEDHI16 1593 || r_type == R_SH_GOT_HI16) 1594 && elf_hash_table (info)->dynamic_sections_created 1595 && (! info->shared 1596 || (! info->symbolic && h->dynindx != -1) 1597 || !h->def_regular)) 1598 /* The cases above are those in which relocation is 1599 overwritten in the switch block below. The cases 1600 below are those in which we must defer relocation 1601 to run-time, because we can't resolve absolute 1602 addresses when creating a shared library. */ 1603 || (info->shared 1604 && ((! info->symbolic && h->dynindx != -1) 1605 || !h->def_regular) 1606 && ((r_type == R_SH_64 1607 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1608 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)) 1609 || r_type == R_SH_64_PCREL) 1610 && ((input_section->flags & SEC_ALLOC) != 0 1611 /* DWARF will emit R_SH_DIR32 relocations in its 1612 sections against symbols defined externally 1613 in shared libraries. We can't do anything 1614 with them here. */ 1615 || (input_section->flags & SEC_DEBUGGING) != 0)) 1616 /* Dynamic relocs are not propagated for SEC_DEBUGGING 1617 sections because such sections are not SEC_ALLOC and 1618 thus ld.so will not process them. */ 1619 || (sec->output_section == NULL 1620 && ((input_section->flags & SEC_DEBUGGING) != 0 1621 && h->def_dynamic))) 1622 relocation = 0; 1623 else if (sec->output_section == NULL) 1624 { 1625 (*_bfd_error_handler) 1626 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), 1627 input_bfd, 1628 input_section, 1629 (long) rel->r_offset, 1630 howto->name, 1631 h->root.root.string); 1632 relocation = 0; 1633 } 1634 else 1635 relocation = ((h->root.u.def.value 1636 + sec->output_section->vma 1637 + sec->output_offset) 1638 /* A STO_SH5_ISA32 causes a "bitor 1" to the 1639 symbol value, unless we've seen 1640 STT_DATALABEL on the way to it. */ 1641 | ((h->other & STO_SH5_ISA32) != 0 1642 && ! seen_stt_datalabel)); 1643 } 1644 else if (h->root.type == bfd_link_hash_undefweak) 1645 relocation = 0; 1646 else if (info->unresolved_syms_in_objects == RM_IGNORE 1647 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) 1648 relocation = 0; 1649 else 1650 { 1651 if (! ((*info->callbacks->undefined_symbol) 1652 (info, h->root.root.string, input_bfd, 1653 input_section, rel->r_offset, 1654 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR 1655 || ELF_ST_VISIBILITY (h->other))))) 1656 return FALSE; 1657 relocation = 0; 1658 } 1659 } 1660 1661 disp = (relocation 1662 - input_section->output_section->vma 1663 - input_section->output_offset 1664 - rel->r_offset); 1665 dropped = 0; 1666 switch ((int)r_type) 1667 { 1668 case R_SH_PT_16: dropped = disp & 2; break; 1669 case R_SH_DIR10SW: dropped = disp & 1; break; 1670 case R_SH_DIR10SL: dropped = disp & 3; break; 1671 case R_SH_DIR10SQ: dropped = disp & 7; break; 1672 } 1673 if (dropped != 0) 1674 { 1675 (*_bfd_error_handler) 1676 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"), 1677 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation); 1678 bfd_set_error (bfd_error_bad_value); 1679 return FALSE; 1680 } 1681 switch ((int)r_type) 1682 { 1683 case R_SH_64: 1684 case R_SH_64_PCREL: 1685 if (info->shared 1686 && (input_section->flags & SEC_ALLOC) != 0 1687 && (r_type != R_SH_64_PCREL 1688 || (h != NULL 1689 && h->dynindx != -1 1690 && (! info->symbolic 1691 || !h->def_regular)))) 1692 { 1693 Elf_Internal_Rela outrel; 1694 bfd_byte *loc; 1695 bfd_boolean skip, relocate; 1696 1697 /* When generating a shared object, these relocations 1698 are copied into the output file to be resolved at run 1699 time. */ 1700 1701 if (sreloc == NULL) 1702 { 1703 const char *name; 1704 1705 name = (bfd_elf_string_from_elf_section 1706 (input_bfd, 1707 elf_elfheader (input_bfd)->e_shstrndx, 1708 elf_section_data (input_section)->rel_hdr.sh_name)); 1709 if (name == NULL) 1710 return FALSE; 1711 1712 BFD_ASSERT (strncmp (name, ".rela", 5) == 0 1713 && strcmp (bfd_get_section_name (input_bfd, 1714 input_section), 1715 name + 5) == 0); 1716 1717 sreloc = bfd_get_section_by_name (dynobj, name); 1718 BFD_ASSERT (sreloc != NULL); 1719 } 1720 1721 skip = FALSE; 1722 relocate = FALSE; 1723 1724 outrel.r_offset 1725 = _bfd_elf_section_offset (output_bfd, info, 1726 input_section, rel->r_offset); 1727 1728 if (outrel.r_offset == (bfd_vma) -1) 1729 skip = TRUE; 1730 else if (outrel.r_offset == (bfd_vma) -2) 1731 skip = TRUE, relocate = TRUE; 1732 1733 outrel.r_offset += (input_section->output_section->vma 1734 + input_section->output_offset); 1735 1736 if (skip) 1737 memset (&outrel, 0, sizeof outrel); 1738 else if (r_type == R_SH_64_PCREL) 1739 { 1740 BFD_ASSERT (h != NULL && h->dynindx != -1); 1741 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL); 1742 outrel.r_addend = rel->r_addend; 1743 } 1744 else 1745 { 1746 /* h->dynindx may be -1 if this symbol was marked to 1747 become local. */ 1748 if (h == NULL 1749 || ((info->symbolic || h->dynindx == -1) 1750 && h->def_regular)) 1751 { 1752 relocate = TRUE; 1753 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1754 outrel.r_addend = relocation + rel->r_addend; 1755 } 1756 else 1757 { 1758 BFD_ASSERT (h->dynindx != -1); 1759 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64); 1760 outrel.r_addend = relocation + rel->r_addend; 1761 } 1762 } 1763 1764 loc = sreloc->contents; 1765 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); 1766 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1767 1768 /* If this reloc is against an external symbol, we do 1769 not want to fiddle with the addend. Otherwise, we 1770 need to include the symbol value so that it becomes 1771 an addend for the dynamic reloc. */ 1772 if (! relocate) 1773 continue; 1774 } 1775 else if (r_type == R_SH_64) 1776 addend = rel->r_addend; 1777 goto final_link_relocate; 1778 1779 case R_SH_GOTPLT_LOW16: 1780 case R_SH_GOTPLT_MEDLOW16: 1781 case R_SH_GOTPLT_MEDHI16: 1782 case R_SH_GOTPLT_HI16: 1783 case R_SH_GOTPLT10BY4: 1784 case R_SH_GOTPLT10BY8: 1785 /* Relocation is to the entry for this symbol in the 1786 procedure linkage table. */ 1787 1788 if (h == NULL 1789 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1790 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 1791 || ! info->shared 1792 || info->symbolic 1793 || h->dynindx == -1 1794 || h->plt.offset == (bfd_vma) -1 1795 || h->got.offset != (bfd_vma) -1) 1796 goto force_got; 1797 1798 /* Relocation is to the entry for this symbol in the global 1799 offset table extension for the procedure linkage table. */ 1800 if (sgotplt == NULL) 1801 { 1802 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); 1803 BFD_ASSERT (sgotplt != NULL); 1804 } 1805 1806 relocation = (sgotplt->output_offset 1807 + ((h->plt.offset / elf_sh64_sizeof_plt (info) 1808 - 1 + 3) * 8)); 1809 1810 relocation -= GOT_BIAS; 1811 1812 goto final_link_relocate; 1813 1814 force_got: 1815 case R_SH_GOT_LOW16: 1816 case R_SH_GOT_MEDLOW16: 1817 case R_SH_GOT_MEDHI16: 1818 case R_SH_GOT_HI16: 1819 case R_SH_GOT10BY4: 1820 case R_SH_GOT10BY8: 1821 /* Relocation is to the entry for this symbol in the global 1822 offset table. */ 1823 if (sgot == NULL) 1824 { 1825 sgot = bfd_get_section_by_name (dynobj, ".got"); 1826 BFD_ASSERT (sgot != NULL); 1827 } 1828 1829 if (h != NULL) 1830 { 1831 bfd_vma off; 1832 1833 off = h->got.offset; 1834 if (seen_stt_datalabel) 1835 { 1836 struct elf_sh64_link_hash_entry *hsh; 1837 1838 hsh = (struct elf_sh64_link_hash_entry *)h; 1839 off = hsh->datalabel_got_offset; 1840 } 1841 BFD_ASSERT (off != (bfd_vma) -1); 1842 1843 if (! elf_hash_table (info)->dynamic_sections_created 1844 || (info->shared 1845 && (info->symbolic || h->dynindx == -1 1846 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1847 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 1848 && h->def_regular)) 1849 { 1850 /* This is actually a static link, or it is a 1851 -Bsymbolic link and the symbol is defined 1852 locally, or the symbol was forced to be local 1853 because of a version file. We must initialize 1854 this entry in the global offset table. Since the 1855 offset must always be a multiple of 4, we use the 1856 least significant bit to record whether we have 1857 initialized it already. 1858 1859 When doing a dynamic link, we create a .rela.got 1860 relocation entry to initialize the value. This 1861 is done in the finish_dynamic_symbol routine. */ 1862 if ((off & 1) != 0) 1863 off &= ~1; 1864 else 1865 { 1866 bfd_put_64 (output_bfd, relocation, 1867 sgot->contents + off); 1868 if (seen_stt_datalabel) 1869 { 1870 struct elf_sh64_link_hash_entry *hsh; 1871 1872 hsh = (struct elf_sh64_link_hash_entry *)h; 1873 hsh->datalabel_got_offset |= 1; 1874 } 1875 else 1876 h->got.offset |= 1; 1877 } 1878 } 1879 1880 relocation = sgot->output_offset + off; 1881 } 1882 else 1883 { 1884 bfd_vma off; 1885 1886 if (rel->r_addend) 1887 { 1888 BFD_ASSERT (local_got_offsets != NULL 1889 && (local_got_offsets[symtab_hdr->sh_info 1890 + r_symndx] 1891 != (bfd_vma) -1)); 1892 1893 off = local_got_offsets[symtab_hdr->sh_info 1894 + r_symndx]; 1895 } 1896 else 1897 { 1898 BFD_ASSERT (local_got_offsets != NULL 1899 && local_got_offsets[r_symndx] != (bfd_vma) -1); 1900 1901 off = local_got_offsets[r_symndx]; 1902 } 1903 1904 /* The offset must always be a multiple of 8. We use 1905 the least significant bit to record whether we have 1906 already generated the necessary reloc. */ 1907 if ((off & 1) != 0) 1908 off &= ~1; 1909 else 1910 { 1911 bfd_put_64 (output_bfd, relocation, sgot->contents + off); 1912 1913 if (info->shared) 1914 { 1915 asection *s; 1916 Elf_Internal_Rela outrel; 1917 bfd_byte *loc; 1918 1919 s = bfd_get_section_by_name (dynobj, ".rela.got"); 1920 BFD_ASSERT (s != NULL); 1921 1922 outrel.r_offset = (sgot->output_section->vma 1923 + sgot->output_offset 1924 + off); 1925 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1926 outrel.r_addend = relocation; 1927 loc = s->contents; 1928 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 1929 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1930 } 1931 1932 if (rel->r_addend) 1933 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1; 1934 else 1935 local_got_offsets[r_symndx] |= 1; 1936 } 1937 1938 relocation = sgot->output_offset + off; 1939 } 1940 1941 relocation -= GOT_BIAS; 1942 1943 goto final_link_relocate; 1944 1945 case R_SH_GOTOFF_LOW16: 1946 case R_SH_GOTOFF_MEDLOW16: 1947 case R_SH_GOTOFF_MEDHI16: 1948 case R_SH_GOTOFF_HI16: 1949 /* Relocation is relative to the start of the global offset 1950 table. */ 1951 1952 if (sgot == NULL) 1953 { 1954 sgot = bfd_get_section_by_name (dynobj, ".got"); 1955 BFD_ASSERT (sgot != NULL); 1956 } 1957 1958 /* Note that sgot->output_offset is not involved in this 1959 calculation. We always want the start of .got. If we 1960 defined _GLOBAL_OFFSET_TABLE in a different way, as is 1961 permitted by the ABI, we might have to change this 1962 calculation. */ 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_GOTPC_LOW16: 1972 case R_SH_GOTPC_MEDLOW16: 1973 case R_SH_GOTPC_MEDHI16: 1974 case R_SH_GOTPC_HI16: 1975 /* Use global offset table as symbol value. */ 1976 1977 if (sgot == NULL) 1978 { 1979 sgot = bfd_get_section_by_name (dynobj, ".got"); 1980 BFD_ASSERT (sgot != NULL); 1981 } 1982 1983 relocation = sgot->output_section->vma; 1984 1985 relocation += GOT_BIAS; 1986 1987 addend = rel->r_addend; 1988 1989 goto final_link_relocate; 1990 1991 case R_SH_PLT_LOW16: 1992 case R_SH_PLT_MEDLOW16: 1993 case R_SH_PLT_MEDHI16: 1994 case R_SH_PLT_HI16: 1995 /* Relocation is to the entry for this symbol in the 1996 procedure linkage table. */ 1997 1998 /* Resolve a PLT reloc against a local symbol directly, 1999 without using the procedure linkage table. */ 2000 if (h == NULL) 2001 goto final_link_relocate; 2002 2003 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2004 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 2005 goto final_link_relocate; 2006 2007 if (h->plt.offset == (bfd_vma) -1) 2008 { 2009 /* We didn't make a PLT entry for this symbol. This 2010 happens when statically linking PIC code, or when 2011 using -Bsymbolic. */ 2012 goto final_link_relocate; 2013 } 2014 2015 if (splt == NULL) 2016 { 2017 splt = bfd_get_section_by_name (dynobj, ".plt"); 2018 BFD_ASSERT (splt != NULL); 2019 } 2020 2021 relocation = (splt->output_section->vma 2022 + splt->output_offset 2023 + h->plt.offset); 2024 relocation++; 2025 2026 addend = rel->r_addend; 2027 2028 goto final_link_relocate; 2029 2030 case R_SH_DIR32: 2031 case R_SH_SHMEDIA_CODE: 2032 case R_SH_PT_16: 2033 case R_SH_DIR5U: 2034 case R_SH_DIR6S: 2035 case R_SH_DIR6U: 2036 case R_SH_DIR10S: 2037 case R_SH_DIR10SW: 2038 case R_SH_DIR10SL: 2039 case R_SH_DIR10SQ: 2040 case R_SH_IMMS16: 2041 case R_SH_IMMU16: 2042 case R_SH_IMM_LOW16: 2043 case R_SH_IMM_LOW16_PCREL: 2044 case R_SH_IMM_MEDLOW16: 2045 case R_SH_IMM_MEDLOW16_PCREL: 2046 case R_SH_IMM_MEDHI16: 2047 case R_SH_IMM_MEDHI16_PCREL: 2048 case R_SH_IMM_HI16: 2049 case R_SH_IMM_HI16_PCREL: 2050 addend = rel->r_addend; 2051 /* Fall through. */ 2052 case R_SH_REL32: 2053 final_link_relocate: 2054 r = _bfd_final_link_relocate (howto, input_bfd, input_section, 2055 contents, rel->r_offset, 2056 relocation, addend); 2057 break; 2058 2059 default: 2060 bfd_set_error (bfd_error_bad_value); 2061 return FALSE; 2062 2063 } 2064 2065 if (r != bfd_reloc_ok) 2066 { 2067 switch (r) 2068 { 2069 default: 2070 case bfd_reloc_outofrange: 2071 abort (); 2072 case bfd_reloc_overflow: 2073 { 2074 const char *name; 2075 2076 if (h != NULL) 2077 name = NULL; 2078 else 2079 { 2080 name = (bfd_elf_string_from_elf_section 2081 (input_bfd, symtab_hdr->sh_link, sym->st_name)); 2082 if (name == NULL) 2083 return FALSE; 2084 if (*name == '\0') 2085 name = bfd_section_name (input_bfd, sec); 2086 } 2087 if (! ((*info->callbacks->reloc_overflow) 2088 (info, (h ? &h->root : NULL), name, howto->name, 2089 (bfd_vma) 0, input_bfd, input_section, 2090 rel->r_offset))) 2091 return FALSE; 2092 } 2093 break; 2094 } 2095 } 2096 } 2097 2098 return TRUE; 2099 } 2100 2101 /* This is a version of bfd_generic_get_relocated_section_contents 2102 that uses sh_elf64_relocate_section. 2103 2104 See sh_elf_relocate_section in elf32-sh.c for the original. */ 2105 2106 static bfd_byte * 2107 sh_elf64_get_relocated_section_contents (bfd *output_bfd, 2108 struct bfd_link_info *link_info, 2109 struct bfd_link_order *link_order, 2110 bfd_byte *data, 2111 bfd_boolean relocatable, 2112 asymbol **symbols) 2113 { 2114 Elf_Internal_Shdr *symtab_hdr; 2115 asection *input_section = link_order->u.indirect.section; 2116 bfd *input_bfd = input_section->owner; 2117 asection **sections = NULL; 2118 Elf_Internal_Rela *internal_relocs = NULL; 2119 Elf_Internal_Sym *isymbuf = NULL; 2120 2121 /* We only need to handle the case of relaxing, or of having a 2122 particular set of section contents, specially. */ 2123 if (relocatable 2124 || elf_section_data (input_section)->this_hdr.contents == NULL) 2125 return bfd_generic_get_relocated_section_contents (output_bfd, link_info, 2126 link_order, data, 2127 relocatable, 2128 symbols); 2129 2130 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 2131 2132 memcpy (data, elf_section_data (input_section)->this_hdr.contents, 2133 input_section->size); 2134 2135 if ((input_section->flags & SEC_RELOC) != 0 2136 && input_section->reloc_count > 0) 2137 { 2138 Elf_Internal_Sym *isymp; 2139 Elf_Internal_Sym *isymend; 2140 asection **secpp; 2141 2142 /* Read this BFD's local symbols. */ 2143 if (symtab_hdr->sh_info != 0) 2144 { 2145 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; 2146 if (isymbuf == NULL) 2147 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, 2148 symtab_hdr->sh_info, 0, 2149 NULL, NULL, NULL); 2150 if (isymbuf == NULL) 2151 goto error_return; 2152 } 2153 2154 internal_relocs = (_bfd_elf_link_read_relocs 2155 (input_bfd, input_section, NULL, 2156 (Elf_Internal_Rela *) NULL, FALSE)); 2157 if (internal_relocs == NULL) 2158 goto error_return; 2159 2160 sections = (asection **) bfd_malloc (symtab_hdr->sh_info 2161 * sizeof (asection *)); 2162 if (sections == NULL && symtab_hdr->sh_info > 0) 2163 goto error_return; 2164 2165 secpp = sections; 2166 isymend = isymbuf + symtab_hdr->sh_info; 2167 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp) 2168 { 2169 asection *isec; 2170 2171 if (isymp->st_shndx == SHN_UNDEF) 2172 isec = bfd_und_section_ptr; 2173 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE) 2174 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); 2175 else if (isymp->st_shndx == SHN_ABS) 2176 isec = bfd_abs_section_ptr; 2177 else if (isymp->st_shndx == SHN_COMMON) 2178 isec = bfd_com_section_ptr; 2179 else 2180 { 2181 /* Who knows? */ 2182 isec = NULL; 2183 } 2184 2185 *secpp = isec; 2186 } 2187 2188 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd, 2189 input_section, data, internal_relocs, 2190 isymbuf, sections)) 2191 goto error_return; 2192 2193 if (sections != NULL) 2194 free (sections); 2195 if (internal_relocs != elf_section_data (input_section)->relocs) 2196 free (internal_relocs); 2197 if (isymbuf != NULL 2198 && (unsigned char *) isymbuf != symtab_hdr->contents) 2199 free (isymbuf); 2200 } 2201 2202 return data; 2203 2204 error_return: 2205 if (sections != NULL) 2206 free (sections); 2207 if (internal_relocs != NULL 2208 && internal_relocs != elf_section_data (input_section)->relocs) 2209 free (internal_relocs); 2210 if (isymbuf != NULL 2211 && (unsigned char *) isymbuf != symtab_hdr->contents) 2212 free (isymbuf); 2213 return NULL; 2214 } 2215 2216 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */ 2217 2218 static bfd_boolean 2219 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED, 2220 Elf_Internal_Shdr *elf_section_hdr, 2221 asection *asect) 2222 { 2223 /* Code sections can only contain SH64 code, so mark them as such. */ 2224 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE) 2225 elf_section_hdr->sh_flags |= SHF_SH5_ISA32; 2226 2227 return TRUE; 2228 } 2229 2230 static bfd_boolean 2231 sh_elf64_set_mach_from_flags (bfd *abfd) 2232 { 2233 flagword flags = elf_elfheader (abfd)->e_flags; 2234 2235 switch (flags & EF_SH_MACH_MASK) 2236 { 2237 case EF_SH5: 2238 /* Just one, but keep the switch construct to make additions easy. */ 2239 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5); 2240 break; 2241 2242 default: 2243 bfd_set_error (bfd_error_wrong_format); 2244 return FALSE; 2245 } 2246 return TRUE; 2247 } 2248 2249 /* Function to keep SH64 specific file flags. 2250 2251 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */ 2252 2253 static bfd_boolean 2254 sh_elf64_set_private_flags (bfd *abfd, flagword flags) 2255 { 2256 BFD_ASSERT (! elf_flags_init (abfd) 2257 || elf_elfheader (abfd)->e_flags == flags); 2258 2259 elf_elfheader (abfd)->e_flags = flags; 2260 elf_flags_init (abfd) = TRUE; 2261 return sh_elf64_set_mach_from_flags (abfd); 2262 } 2263 2264 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with 2265 code, to keep attributes the same as for SHmedia in 32-bit ELF. */ 2266 2267 static bfd_boolean 2268 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd) 2269 { 2270 Elf_Internal_Shdr **o_shdrp; 2271 asection *isec; 2272 asection *osec; 2273 2274 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2275 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2276 return TRUE; 2277 2278 o_shdrp = elf_elfsections (obfd); 2279 for (osec = obfd->sections; osec; osec = osec->next) 2280 { 2281 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx; 2282 for (isec = ibfd->sections; isec; isec = isec->next) 2283 { 2284 if (strcmp (osec->name, isec->name) == 0) 2285 { 2286 /* Note that we're not disallowing mixing data and code. */ 2287 if ((elf_section_data (isec)->this_hdr.sh_flags 2288 & SHF_SH5_ISA32) != 0) 2289 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32; 2290 break; 2291 } 2292 } 2293 } 2294 2295 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); 2296 } 2297 2298 static bfd_boolean 2299 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd) 2300 { 2301 return sh_elf64_copy_private_data_internal (ibfd, obfd); 2302 } 2303 2304 static bfd_boolean 2305 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd) 2306 { 2307 flagword old_flags, new_flags; 2308 2309 if (! _bfd_generic_verify_endian_match (ibfd, obfd)) 2310 return FALSE; 2311 2312 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2313 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2314 return TRUE; 2315 2316 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd)) 2317 { 2318 const char *msg; 2319 2320 if (bfd_get_arch_size (ibfd) == 32 2321 && bfd_get_arch_size (obfd) == 64) 2322 msg = _("%s: compiled as 32-bit object and %s is 64-bit"); 2323 else if (bfd_get_arch_size (ibfd) == 64 2324 && bfd_get_arch_size (obfd) == 32) 2325 msg = _("%s: compiled as 64-bit object and %s is 32-bit"); 2326 else 2327 msg = _("%s: object size does not match that of target %s"); 2328 2329 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd), 2330 bfd_get_filename (obfd)); 2331 bfd_set_error (bfd_error_wrong_format); 2332 return FALSE; 2333 } 2334 2335 old_flags = elf_elfheader (obfd)->e_flags; 2336 new_flags = elf_elfheader (ibfd)->e_flags; 2337 if (! elf_flags_init (obfd)) 2338 { 2339 /* This happens when ld starts out with a 'blank' output file. */ 2340 elf_flags_init (obfd) = TRUE; 2341 elf_elfheader (obfd)->e_flags = old_flags = new_flags; 2342 } 2343 /* We don't allow linking in anything else than SH64 code, and since 2344 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code 2345 here as things change. */ 2346 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5) 2347 { 2348 (*_bfd_error_handler) 2349 ("%s: does not use the SH64 64-bit ABI as previous modules do", 2350 bfd_get_filename (ibfd)); 2351 bfd_set_error (bfd_error_bad_value); 2352 return FALSE; 2353 } 2354 2355 sh_elf64_copy_private_data_internal (ibfd, obfd); 2356 2357 /* I can't think of anything sane other than old_flags being EF_SH5 and 2358 that we need to preserve that. */ 2359 elf_elfheader (obfd)->e_flags = old_flags; 2360 2361 return sh_elf64_set_mach_from_flags (obfd); 2362 } 2363 2364 /* Return the section that should be marked against GC for a given 2365 relocation. */ 2366 2367 static asection * 2368 sh_elf64_gc_mark_hook (asection *sec, 2369 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2370 Elf_Internal_Rela *rel, 2371 struct elf_link_hash_entry *h, 2372 Elf_Internal_Sym *sym) 2373 { 2374 if (h != NULL) 2375 { 2376 switch (ELF64_R_TYPE (rel->r_info)) 2377 { 2378 case R_SH_GNU_VTINHERIT: 2379 case R_SH_GNU_VTENTRY: 2380 break; 2381 2382 default: 2383 while (h->root.type == bfd_link_hash_indirect 2384 && h->root.u.i.link) 2385 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2386 switch (h->root.type) 2387 { 2388 case bfd_link_hash_defined: 2389 case bfd_link_hash_defweak: 2390 return h->root.u.def.section; 2391 2392 case bfd_link_hash_common: 2393 return h->root.u.c.p->section; 2394 2395 default: 2396 break; 2397 } 2398 } 2399 } 2400 else 2401 return bfd_section_from_elf_index (sec->owner, sym->st_shndx); 2402 2403 return NULL; 2404 } 2405 2406 /* Update the got entry reference counts for the section being removed. */ 2407 2408 static bfd_boolean 2409 sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, 2410 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2411 asection *sec ATTRIBUTE_UNUSED, 2412 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) 2413 { 2414 /* No got and plt entries for 64-bit SH at present. */ 2415 return TRUE; 2416 } 2417 2418 /* Look through the relocs for a section during the first phase. 2419 Since we don't do .gots or .plts, we just need to consider the 2420 virtual table relocs for gc. */ 2421 2422 static bfd_boolean 2423 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info, 2424 asection *sec, const Elf_Internal_Rela *relocs) 2425 { 2426 Elf_Internal_Shdr *symtab_hdr; 2427 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; 2428 const Elf_Internal_Rela *rel; 2429 const Elf_Internal_Rela *rel_end; 2430 bfd *dynobj; 2431 bfd_vma *local_got_offsets; 2432 asection *sgot; 2433 asection *srelgot; 2434 asection *sreloc; 2435 2436 sgot = NULL; 2437 srelgot = NULL; 2438 sreloc = NULL; 2439 2440 if (info->relocatable) 2441 return TRUE; 2442 2443 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 2444 sym_hashes = elf_sym_hashes (abfd); 2445 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym); 2446 if (!elf_bad_symtab (abfd)) 2447 sym_hashes_end -= symtab_hdr->sh_info; 2448 2449 dynobj = elf_hash_table (info)->dynobj; 2450 local_got_offsets = elf_local_got_offsets (abfd); 2451 2452 rel_end = relocs + sec->reloc_count; 2453 for (rel = relocs; rel < rel_end; rel++) 2454 { 2455 struct elf_link_hash_entry *h; 2456 unsigned long r_symndx; 2457 2458 r_symndx = ELF64_R_SYM (rel->r_info); 2459 if (r_symndx < symtab_hdr->sh_info) 2460 h = NULL; 2461 else 2462 { 2463 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 2464 while (h->root.type == bfd_link_hash_indirect 2465 || h->root.type == bfd_link_hash_warning) 2466 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2467 } 2468 2469 /* Some relocs require a global offset table. */ 2470 if (dynobj == NULL) 2471 { 2472 switch (ELF64_R_TYPE (rel->r_info)) 2473 { 2474 case R_SH_GOTPLT_LOW16: 2475 case R_SH_GOTPLT_MEDLOW16: 2476 case R_SH_GOTPLT_MEDHI16: 2477 case R_SH_GOTPLT_HI16: 2478 case R_SH_GOTPLT10BY4: 2479 case R_SH_GOTPLT10BY8: 2480 case R_SH_GOT_LOW16: 2481 case R_SH_GOT_MEDLOW16: 2482 case R_SH_GOT_MEDHI16: 2483 case R_SH_GOT_HI16: 2484 case R_SH_GOT10BY4: 2485 case R_SH_GOT10BY8: 2486 case R_SH_GOTOFF_LOW16: 2487 case R_SH_GOTOFF_MEDLOW16: 2488 case R_SH_GOTOFF_MEDHI16: 2489 case R_SH_GOTOFF_HI16: 2490 case R_SH_GOTPC_LOW16: 2491 case R_SH_GOTPC_MEDLOW16: 2492 case R_SH_GOTPC_MEDHI16: 2493 case R_SH_GOTPC_HI16: 2494 elf_hash_table (info)->dynobj = dynobj = abfd; 2495 if (! _bfd_elf_create_got_section (dynobj, info)) 2496 return FALSE; 2497 break; 2498 2499 default: 2500 break; 2501 } 2502 } 2503 2504 switch (ELF64_R_TYPE (rel->r_info)) 2505 { 2506 /* This relocation describes the C++ object vtable hierarchy. 2507 Reconstruct it for later use during GC. */ 2508 case R_SH_GNU_VTINHERIT: 2509 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) 2510 return FALSE; 2511 break; 2512 2513 /* This relocation describes which C++ vtable entries are actually 2514 used. Record for later use during GC. */ 2515 case R_SH_GNU_VTENTRY: 2516 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) 2517 return FALSE; 2518 break; 2519 2520 force_got: 2521 case R_SH_GOT_LOW16: 2522 case R_SH_GOT_MEDLOW16: 2523 case R_SH_GOT_MEDHI16: 2524 case R_SH_GOT_HI16: 2525 case R_SH_GOT10BY4: 2526 case R_SH_GOT10BY8: 2527 /* This symbol requires a global offset table entry. */ 2528 2529 if (sgot == NULL) 2530 { 2531 sgot = bfd_get_section_by_name (dynobj, ".got"); 2532 BFD_ASSERT (sgot != NULL); 2533 } 2534 2535 if (srelgot == NULL 2536 && (h != NULL || info->shared)) 2537 { 2538 srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); 2539 if (srelgot == NULL) 2540 { 2541 srelgot = bfd_make_section_with_flags (dynobj, 2542 ".rela.got", 2543 (SEC_ALLOC 2544 | SEC_LOAD 2545 | SEC_HAS_CONTENTS 2546 | SEC_IN_MEMORY 2547 | SEC_LINKER_CREATED 2548 | SEC_READONLY)); 2549 if (srelgot == NULL 2550 || ! bfd_set_section_alignment (dynobj, srelgot, 2)) 2551 return FALSE; 2552 } 2553 } 2554 2555 if (h != NULL) 2556 { 2557 if (h->type == STT_DATALABEL) 2558 { 2559 struct elf_sh64_link_hash_entry *hsh; 2560 2561 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2562 hsh = (struct elf_sh64_link_hash_entry *)h; 2563 if (hsh->datalabel_got_offset != (bfd_vma) -1) 2564 break; 2565 2566 hsh->datalabel_got_offset = sgot->size; 2567 } 2568 else 2569 { 2570 if (h->got.offset != (bfd_vma) -1) 2571 { 2572 /* We have already allocated space in the .got. */ 2573 break; 2574 } 2575 h->got.offset = sgot->size; 2576 } 2577 2578 /* Make sure this symbol is output as a dynamic symbol. */ 2579 if (h->dynindx == -1) 2580 { 2581 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2582 return FALSE; 2583 } 2584 2585 srelgot->size += sizeof (Elf64_External_Rela); 2586 } 2587 else 2588 { 2589 /* This is a global offset table entry for a local 2590 symbol. */ 2591 if (local_got_offsets == NULL) 2592 { 2593 size_t size; 2594 register unsigned int i; 2595 2596 size = symtab_hdr->sh_info * sizeof (bfd_vma); 2597 /* Reserve space for both the datalabel and 2598 codelabel local GOT offsets. */ 2599 size *= 2; 2600 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); 2601 if (local_got_offsets == NULL) 2602 return FALSE; 2603 elf_local_got_offsets (abfd) = local_got_offsets; 2604 for (i = 0; i < symtab_hdr->sh_info; i++) 2605 local_got_offsets[i] = (bfd_vma) -1; 2606 for (; i < 2 * symtab_hdr->sh_info; i++) 2607 local_got_offsets[i] = (bfd_vma) -1; 2608 } 2609 if ((rel->r_addend & 1) != 0) 2610 { 2611 if (local_got_offsets[symtab_hdr->sh_info 2612 + r_symndx] != (bfd_vma) -1) 2613 { 2614 /* We have already allocated space in the .got. */ 2615 break; 2616 } 2617 local_got_offsets[symtab_hdr->sh_info 2618 + r_symndx] = sgot->size; 2619 } 2620 else 2621 { 2622 if (local_got_offsets[r_symndx] != (bfd_vma) -1) 2623 { 2624 /* We have already allocated space in the .got. */ 2625 break; 2626 } 2627 local_got_offsets[r_symndx] = sgot->size; 2628 } 2629 2630 if (info->shared) 2631 { 2632 /* If we are generating a shared object, we need to 2633 output a R_SH_RELATIVE reloc so that the dynamic 2634 linker can adjust this GOT entry. */ 2635 srelgot->size += sizeof (Elf64_External_Rela); 2636 } 2637 } 2638 2639 sgot->size += 8; 2640 2641 break; 2642 2643 case R_SH_GOTPLT_LOW16: 2644 case R_SH_GOTPLT_MEDLOW16: 2645 case R_SH_GOTPLT_MEDHI16: 2646 case R_SH_GOTPLT_HI16: 2647 case R_SH_GOTPLT10BY4: 2648 case R_SH_GOTPLT10BY8: 2649 /* If this is a local symbol, we resolve it directly without 2650 creating a procedure linkage table entry. */ 2651 2652 if (h == NULL 2653 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2654 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 2655 || ! info->shared 2656 || info->symbolic 2657 || h->dynindx == -1 2658 || h->got.offset != (bfd_vma) -1) 2659 goto force_got; 2660 2661 /* Make sure this symbol is output as a dynamic symbol. */ 2662 if (h->dynindx == -1) 2663 { 2664 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2665 return FALSE; 2666 } 2667 2668 h->needs_plt = 1; 2669 2670 break; 2671 2672 case R_SH_PLT_LOW16: 2673 case R_SH_PLT_MEDLOW16: 2674 case R_SH_PLT_MEDHI16: 2675 case R_SH_PLT_HI16: 2676 /* This symbol requires a procedure linkage table entry. We 2677 actually build the entry in adjust_dynamic_symbol, 2678 because this might be a case of linking PIC code which is 2679 never referenced by a dynamic object, in which case we 2680 don't need to generate a procedure linkage table entry 2681 after all. */ 2682 2683 /* If this is a local symbol, we resolve it directly without 2684 creating a procedure linkage table entry. */ 2685 if (h == NULL) 2686 continue; 2687 2688 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2689 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 2690 break; 2691 2692 h->needs_plt = 1; 2693 2694 break; 2695 2696 case R_SH_64: 2697 case R_SH_64_PCREL: 2698 if (h != NULL) 2699 h->non_got_ref = 1; 2700 2701 /* If we are creating a shared library, and this is a reloc 2702 against a global symbol, or a non PC relative reloc 2703 against a local symbol, then we need to copy the reloc 2704 into the shared library. However, if we are linking with 2705 -Bsymbolic, we do not need to copy a reloc against a 2706 global symbol which is defined in an object we are 2707 including in the link (i.e., DEF_REGULAR is set). At 2708 this point we have not seen all the input files, so it is 2709 possible that DEF_REGULAR is not set now but will be set 2710 later (it is never cleared). We account for that 2711 possibility below by storing information in the 2712 pcrel_relocs_copied field of the hash table entry. */ 2713 if (info->shared 2714 && (sec->flags & SEC_ALLOC) != 0 2715 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL 2716 || (h != NULL 2717 && (! info->symbolic 2718 || !h->def_regular)))) 2719 { 2720 /* When creating a shared object, we must copy these 2721 reloc types into the output file. We create a reloc 2722 section in dynobj and make room for this reloc. */ 2723 if (sreloc == NULL) 2724 { 2725 const char *name; 2726 2727 name = (bfd_elf_string_from_elf_section 2728 (abfd, 2729 elf_elfheader (abfd)->e_shstrndx, 2730 elf_section_data (sec)->rel_hdr.sh_name)); 2731 if (name == NULL) 2732 return FALSE; 2733 2734 BFD_ASSERT (strncmp (name, ".rela", 5) == 0 2735 && strcmp (bfd_get_section_name (abfd, sec), 2736 name + 5) == 0); 2737 2738 sreloc = bfd_get_section_by_name (dynobj, name); 2739 if (sreloc == NULL) 2740 { 2741 flagword flags; 2742 2743 flags = (SEC_HAS_CONTENTS | SEC_READONLY 2744 | SEC_IN_MEMORY | SEC_LINKER_CREATED); 2745 if ((sec->flags & SEC_ALLOC) != 0) 2746 flags |= SEC_ALLOC | SEC_LOAD; 2747 sreloc = bfd_make_section_with_flags (dynobj, 2748 name, 2749 flags); 2750 if (sreloc == NULL 2751 || ! bfd_set_section_alignment (dynobj, sreloc, 2)) 2752 return FALSE; 2753 } 2754 } 2755 2756 sreloc->size += sizeof (Elf64_External_Rela); 2757 2758 /* If we are linking with -Bsymbolic, and this is a 2759 global symbol, we count the number of PC relative 2760 relocations we have entered for this symbol, so that 2761 we can discard them again if the symbol is later 2762 defined by a regular object. Note that this function 2763 is only called if we are using an elf_sh linker 2764 hash table, which means that h is really a pointer to 2765 an elf_sh_link_hash_entry. */ 2766 if (h != NULL && info->symbolic 2767 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL) 2768 { 2769 struct elf_sh64_link_hash_entry *eh; 2770 struct elf_sh64_pcrel_relocs_copied *p; 2771 2772 eh = (struct elf_sh64_link_hash_entry *) h; 2773 2774 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) 2775 if (p->section == sreloc) 2776 break; 2777 2778 if (p == NULL) 2779 { 2780 p = ((struct elf_sh64_pcrel_relocs_copied *) 2781 bfd_alloc (dynobj, sizeof *p)); 2782 if (p == NULL) 2783 return FALSE; 2784 p->next = eh->pcrel_relocs_copied; 2785 eh->pcrel_relocs_copied = p; 2786 p->section = sreloc; 2787 p->count = 0; 2788 } 2789 2790 ++p->count; 2791 } 2792 } 2793 2794 break; 2795 } 2796 } 2797 2798 return TRUE; 2799 } 2800 2801 static int 2802 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) 2803 { 2804 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL) 2805 return STT_DATALABEL; 2806 2807 return type; 2808 } 2809 2810 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c. 2811 Either file can presumably exist without the other, but do not differ 2812 in elf-size-ness. How to share? 2813 2814 Hook called by the linker routine which adds symbols from an object 2815 file. We must make indirect symbols for undefined symbols marked with 2816 STT_DATALABEL, so relocations passing them will pick up that attribute 2817 and neutralize STO_SH5_ISA32 found on the symbol definition. 2818 2819 There is a problem, though: We want to fill in the hash-table entry for 2820 this symbol and signal to the caller that no further processing is 2821 needed. But we don't have the index for this hash-table entry. We 2822 rely here on that the current entry is the first hash-entry with NULL, 2823 which seems brittle. Also, iterating over the hash-table to find that 2824 entry is a linear operation on the number of symbols in this input 2825 file, and this function should take constant time, so that's not good 2826 too. Only comfort is that DataLabel references should only be found in 2827 hand-written assembly code and thus be rare. FIXME: Talk maintainers 2828 into adding an option to elf_add_symbol_hook (preferably) for the index 2829 or the hash entry, alternatively adding the index to Elf_Internal_Sym 2830 (not so good). */ 2831 2832 static bfd_boolean 2833 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info, 2834 Elf_Internal_Sym *sym, const char **namep, 2835 flagword *flagsp ATTRIBUTE_UNUSED, 2836 asection **secp, bfd_vma *valp) 2837 { 2838 /* We want to do this for relocatable as well as final linking. */ 2839 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL 2840 && is_elf_hash_table (info->hash)) 2841 { 2842 struct elf_link_hash_entry *h; 2843 2844 /* For relocatable links, we register the DataLabel sym in its own 2845 right, and tweak the name when it's output. Otherwise, we make 2846 an indirect symbol of it. */ 2847 flagword flags 2848 = info->relocatable || info->emitrelocations 2849 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT; 2850 2851 char *dl_name 2852 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX)); 2853 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd); 2854 2855 BFD_ASSERT (sym_hash != NULL); 2856 2857 /* Allocation may fail. */ 2858 if (dl_name == NULL) 2859 return FALSE; 2860 2861 strcpy (dl_name, *namep); 2862 strcat (dl_name, DATALABEL_SUFFIX); 2863 2864 h = (struct elf_link_hash_entry *) 2865 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE); 2866 2867 if (h == NULL) 2868 { 2869 /* No previous datalabel symbol. Make one. */ 2870 struct bfd_link_hash_entry *bh = NULL; 2871 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 2872 2873 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name, 2874 flags, *secp, *valp, 2875 *namep, FALSE, 2876 bed->collect, &bh)) 2877 { 2878 free (dl_name); 2879 return FALSE; 2880 } 2881 2882 h = (struct elf_link_hash_entry *) bh; 2883 h->non_elf = 0; 2884 h->type = STT_DATALABEL; 2885 } 2886 else 2887 /* If a new symbol was created, it holds the allocated name. 2888 Otherwise, we don't need it anymore and should deallocate it. */ 2889 free (dl_name); 2890 2891 if (h->type != STT_DATALABEL 2892 || ((info->relocatable || info->emitrelocations) 2893 && h->root.type != bfd_link_hash_undefined) 2894 || (! info->relocatable && !info->emitrelocations 2895 && h->root.type != bfd_link_hash_indirect)) 2896 { 2897 /* Make sure we don't get confused on invalid input. */ 2898 (*_bfd_error_handler) 2899 (_("%s: encountered datalabel symbol in input"), 2900 bfd_get_filename (abfd)); 2901 bfd_set_error (bfd_error_bad_value); 2902 return FALSE; 2903 } 2904 2905 /* Now find the hash-table slot for this entry and fill it in. */ 2906 while (*sym_hash != NULL) 2907 sym_hash++; 2908 *sym_hash = h; 2909 2910 /* Signal to caller to skip this symbol - we've handled it. */ 2911 *namep = NULL; 2912 } 2913 2914 return TRUE; 2915 } 2916 2917 /* This hook function is called before the linker writes out a global 2918 symbol. For relocatable links, DataLabel symbols will be present in 2919 linker output. We cut off the special suffix on those symbols, so the 2920 right name appears in the output. 2921 2922 When linking and emitting relocations, there can appear global symbols 2923 that are not referenced by relocs, but rather only implicitly through 2924 DataLabel references, a relation that is not visible to the linker. 2925 Since no stripping of global symbols in done when doing such linking, 2926 we don't need to look up and make sure to emit the main symbol for each 2927 DataLabel symbol. */ 2928 2929 static bfd_boolean 2930 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info, 2931 const char *cname, 2932 Elf_Internal_Sym *sym, 2933 asection *input_sec ATTRIBUTE_UNUSED, 2934 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 2935 { 2936 char *name = (char *) cname; 2937 2938 if (info->relocatable || info->emitrelocations) 2939 { 2940 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL) 2941 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0; 2942 } 2943 2944 return TRUE; 2945 } 2946 2947 /* Set bit 0 on the entry address; it always points to SHmedia code. This 2948 is mostly for symmetry with the 32-bit format, where code can be 2949 SHcompact and we need to make a distinction to make sure execution 2950 starts in the right ISA mode. It is also convenient for a loader, 2951 which would otherwise have to set this bit when loading a TR register 2952 before jumping to the program entry. */ 2953 2954 static void 2955 sh64_elf64_final_write_processing (bfd *abfd, 2956 bfd_boolean linker ATTRIBUTE_UNUSED) 2957 { 2958 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied 2959 numerically, but we currently lack the infrastructure to recognize 2960 that: The entry symbol, and info whether it is numeric or a symbol 2961 name is kept private in the linker. */ 2962 if (elf_elfheader (abfd)->e_type == ET_EXEC) 2963 elf_elfheader (abfd)->e_entry |= 1; 2964 } 2965 2966 /* First entry in an absolute procedure linkage table look like this. */ 2967 2968 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] = 2969 { 2970 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */ 2971 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */ 2972 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */ 2973 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */ 2974 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 2975 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 2976 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 2977 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 2978 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2979 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2980 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2981 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2982 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2983 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2984 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2985 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 2986 }; 2987 2988 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] = 2989 { 2990 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */ 2991 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */ 2992 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */ 2993 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */ 2994 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 2995 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 2996 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 2997 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 2998 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 2999 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3000 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3001 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3002 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3003 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3004 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3005 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3006 }; 3007 3008 /* Sebsequent entries in an absolute procedure linkage table look like 3009 this. */ 3010 3011 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] = 3012 { 3013 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */ 3014 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */ 3015 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */ 3016 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */ 3017 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */ 3018 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3019 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3020 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3021 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */ 3022 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */ 3023 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */ 3024 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 3025 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 3026 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3027 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3028 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3029 }; 3030 3031 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] = 3032 { 3033 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */ 3034 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3035 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3036 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3037 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */ 3038 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3039 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3040 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3041 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */ 3042 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */ 3043 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */ 3044 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 3045 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 3046 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3047 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3048 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3049 }; 3050 3051 /* Entries in a PIC procedure linkage table look like this. */ 3052 3053 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] = 3054 { 3055 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */ 3056 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */ 3057 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */ 3058 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3059 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3060 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3061 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3062 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3063 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */ 3064 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */ 3065 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 3066 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3067 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 3068 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 3069 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 3070 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3071 }; 3072 3073 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] = 3074 { 3075 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */ 3076 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */ 3077 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */ 3078 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3079 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3080 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3081 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3082 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3083 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */ 3084 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */ 3085 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 3086 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3087 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 3088 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 3089 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 3090 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3091 }; 3092 3093 static const bfd_byte *elf_sh64_plt0_entry; 3094 static const bfd_byte *elf_sh64_plt_entry; 3095 static const bfd_byte *elf_sh64_pic_plt_entry; 3096 3097 /* Create an entry in an sh ELF linker hash table. */ 3098 3099 static struct bfd_hash_entry * 3100 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry, 3101 struct bfd_hash_table *table, 3102 const char *string) 3103 { 3104 struct elf_sh64_link_hash_entry *ret = 3105 (struct elf_sh64_link_hash_entry *) entry; 3106 3107 /* Allocate the structure if it has not already been allocated by a 3108 subclass. */ 3109 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 3110 ret = ((struct elf_sh64_link_hash_entry *) 3111 bfd_hash_allocate (table, 3112 sizeof (struct elf_sh64_link_hash_entry))); 3113 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 3114 return (struct bfd_hash_entry *) ret; 3115 3116 /* Call the allocation method of the superclass. */ 3117 ret = ((struct elf_sh64_link_hash_entry *) 3118 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, 3119 table, string)); 3120 if (ret != (struct elf_sh64_link_hash_entry *) NULL) 3121 { 3122 ret->pcrel_relocs_copied = NULL; 3123 ret->datalabel_got_offset = (bfd_vma) -1; 3124 } 3125 3126 return (struct bfd_hash_entry *) ret; 3127 } 3128 3129 /* Create an sh64 ELF linker hash table. */ 3130 3131 static struct bfd_link_hash_table * 3132 sh64_elf64_link_hash_table_create (bfd *abfd) 3133 { 3134 struct elf_sh64_link_hash_table *ret; 3135 3136 ret = ((struct elf_sh64_link_hash_table *) 3137 bfd_malloc (sizeof (struct elf_sh64_link_hash_table))); 3138 if (ret == (struct elf_sh64_link_hash_table *) NULL) 3139 return NULL; 3140 3141 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, 3142 sh64_elf64_link_hash_newfunc, 3143 sizeof (struct elf_sh64_link_hash_entry))) 3144 { 3145 free (ret); 3146 return NULL; 3147 } 3148 3149 return &ret->root.root; 3150 } 3151 3152 inline static void 3153 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr) 3154 { 3155 bfd_put_32 (output_bfd, 3156 bfd_get_32 (output_bfd, addr) 3157 | ((value >> 6) & 0x3fffc00), 3158 addr); 3159 bfd_put_32 (output_bfd, 3160 bfd_get_32 (output_bfd, addr + 4) 3161 | ((value << 10) & 0x3fffc00), 3162 addr + 4); 3163 } 3164 3165 inline static void 3166 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr) 3167 { 3168 bfd_put_32 (output_bfd, 3169 bfd_get_32 (output_bfd, addr) 3170 | ((value >> 38) & 0x3fffc00), 3171 addr); 3172 bfd_put_32 (output_bfd, 3173 bfd_get_32 (output_bfd, addr + 4) 3174 | ((value >> 22) & 0x3fffc00), 3175 addr + 4); 3176 bfd_put_32 (output_bfd, 3177 bfd_get_32 (output_bfd, addr + 8) 3178 | ((value >> 6) & 0x3fffc00), 3179 addr + 8); 3180 bfd_put_32 (output_bfd, 3181 bfd_get_32 (output_bfd, addr + 12) 3182 | ((value << 10) & 0x3fffc00), 3183 addr + 12); 3184 } 3185 3186 /* Create dynamic sections when linking against a dynamic object. */ 3187 3188 static bfd_boolean 3189 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) 3190 { 3191 flagword flags, pltflags; 3192 register asection *s; 3193 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 3194 int ptralign = 0; 3195 3196 switch (bed->s->arch_size) 3197 { 3198 case 32: 3199 ptralign = 2; 3200 break; 3201 3202 case 64: 3203 ptralign = 3; 3204 break; 3205 3206 default: 3207 bfd_set_error (bfd_error_bad_value); 3208 return FALSE; 3209 } 3210 3211 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and 3212 .rel[a].bss sections. */ 3213 3214 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY 3215 | SEC_LINKER_CREATED); 3216 3217 pltflags = flags; 3218 pltflags |= SEC_CODE; 3219 if (bed->plt_not_loaded) 3220 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); 3221 if (bed->plt_readonly) 3222 pltflags |= SEC_READONLY; 3223 3224 s = bfd_make_section_with_flags (abfd, ".plt", pltflags); 3225 if (s == NULL 3226 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) 3227 return FALSE; 3228 3229 if (bed->want_plt_sym) 3230 { 3231 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the 3232 .plt section. */ 3233 struct elf_link_hash_entry *h; 3234 struct bfd_link_hash_entry *bh = NULL; 3235 3236 if (! (_bfd_generic_link_add_one_symbol 3237 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 3238 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh))) 3239 return FALSE; 3240 3241 h = (struct elf_link_hash_entry *) bh; 3242 h->def_regular = 1; 3243 h->type = STT_OBJECT; 3244 elf_hash_table (info)->hplt = h; 3245 3246 if (info->shared 3247 && ! bfd_elf_link_record_dynamic_symbol (info, h)) 3248 return FALSE; 3249 } 3250 3251 s = bfd_make_section_with_flags (abfd, 3252 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt", 3253 flags | SEC_READONLY); 3254 if (s == NULL 3255 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3256 return FALSE; 3257 3258 if (! _bfd_elf_create_got_section (abfd, info)) 3259 return FALSE; 3260 3261 { 3262 const char *secname; 3263 char *relname; 3264 flagword secflags; 3265 asection *sec; 3266 3267 for (sec = abfd->sections; sec; sec = sec->next) 3268 { 3269 secflags = bfd_get_section_flags (abfd, sec); 3270 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) 3271 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) 3272 continue; 3273 secname = bfd_get_section_name (abfd, sec); 3274 relname = (char *) bfd_malloc (strlen (secname) + 6); 3275 strcpy (relname, ".rela"); 3276 strcat (relname, secname); 3277 s = bfd_make_section_with_flags (abfd, relname, 3278 flags | SEC_READONLY); 3279 if (s == NULL 3280 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3281 return FALSE; 3282 } 3283 } 3284 3285 if (bed->want_dynbss) 3286 { 3287 /* The .dynbss section is a place to put symbols which are defined 3288 by dynamic objects, are referenced by regular objects, and are 3289 not functions. We must allocate space for them in the process 3290 image and use a R_*_COPY reloc to tell the dynamic linker to 3291 initialize them at run time. The linker script puts the .dynbss 3292 section into the .bss section of the final image. */ 3293 s = bfd_make_section_with_flags (abfd, ".dynbss", 3294 SEC_ALLOC | SEC_LINKER_CREATED); 3295 if (s == NULL) 3296 return FALSE; 3297 3298 /* The .rel[a].bss section holds copy relocs. This section is not 3299 normally needed. We need to create it here, though, so that the 3300 linker will map it to an output section. We can't just create it 3301 only if we need it, because we will not know whether we need it 3302 until we have seen all the input files, and the first time the 3303 main linker code calls BFD after examining all the input files 3304 (size_dynamic_sections) the input sections have already been 3305 mapped to the output sections. If the section turns out not to 3306 be needed, we can discard it later. We will never need this 3307 section when generating a shared object, since they do not use 3308 copy relocs. */ 3309 if (! info->shared) 3310 { 3311 s = bfd_make_section_with_flags (abfd, 3312 (bed->default_use_rela_p 3313 ? ".rela.bss" : ".rel.bss"), 3314 flags | SEC_READONLY); 3315 if (s == NULL 3316 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3317 return FALSE; 3318 } 3319 } 3320 3321 return TRUE; 3322 } 3323 3324 /* Adjust a symbol defined by a dynamic object and referenced by a 3325 regular object. The current definition is in some section of the 3326 dynamic object, but we're not including those sections. We have to 3327 change the definition to something the rest of the link can 3328 understand. */ 3329 3330 static bfd_boolean 3331 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info, 3332 struct elf_link_hash_entry *h) 3333 { 3334 bfd *dynobj; 3335 asection *s; 3336 unsigned int power_of_two; 3337 3338 dynobj = elf_hash_table (info)->dynobj; 3339 3340 /* Make sure we know what is going on here. */ 3341 BFD_ASSERT (dynobj != NULL 3342 && (h->needs_plt 3343 || h->u.weakdef != NULL 3344 || (h->def_dynamic 3345 && h->ref_regular 3346 && !h->def_regular))); 3347 3348 /* If this is a function, put it in the procedure linkage table. We 3349 will fill in the contents of the procedure linkage table later, 3350 when we know the address of the .got section. */ 3351 if (h->type == STT_FUNC 3352 || h->needs_plt) 3353 { 3354 if (! info->shared 3355 && !h->def_dynamic 3356 && !h->ref_dynamic) 3357 { 3358 /* This case can occur if we saw a PLT reloc in an input 3359 file, but the symbol was never referred to by a dynamic 3360 object. In such a case, we don't actually need to build 3361 a procedure linkage table, and we can just do a REL64 3362 reloc instead. */ 3363 BFD_ASSERT (h->needs_plt); 3364 return TRUE; 3365 } 3366 3367 /* Make sure this symbol is output as a dynamic symbol. */ 3368 if (h->dynindx == -1) 3369 { 3370 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3371 return FALSE; 3372 } 3373 3374 s = bfd_get_section_by_name (dynobj, ".plt"); 3375 BFD_ASSERT (s != NULL); 3376 3377 /* If this is the first .plt entry, make room for the special 3378 first entry. */ 3379 if (s->size == 0) 3380 s->size += PLT_ENTRY_SIZE; 3381 3382 /* If this symbol is not defined in a regular file, and we are 3383 not generating a shared library, then set the symbol to this 3384 location in the .plt. This is required to make function 3385 pointers compare as equal between the normal executable and 3386 the shared library. */ 3387 if (! info->shared 3388 && !h->def_regular) 3389 { 3390 h->root.u.def.section = s; 3391 h->root.u.def.value = s->size; 3392 } 3393 3394 h->plt.offset = s->size; 3395 3396 /* Make room for this entry. */ 3397 s->size += elf_sh64_sizeof_plt (info); 3398 3399 /* We also need to make an entry in the .got.plt section, which 3400 will be placed in the .got section by the linker script. */ 3401 3402 s = bfd_get_section_by_name (dynobj, ".got.plt"); 3403 BFD_ASSERT (s != NULL); 3404 s->size += 8; 3405 3406 /* We also need to make an entry in the .rela.plt section. */ 3407 3408 s = bfd_get_section_by_name (dynobj, ".rela.plt"); 3409 BFD_ASSERT (s != NULL); 3410 s->size += sizeof (Elf64_External_Rela); 3411 3412 return TRUE; 3413 } 3414 3415 /* If this is a weak symbol, and there is a real definition, the 3416 processor independent code will have arranged for us to see the 3417 real definition first, and we can just use the same value. */ 3418 if (h->u.weakdef != NULL) 3419 { 3420 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined 3421 || h->u.weakdef->root.type == bfd_link_hash_defweak); 3422 h->root.u.def.section = h->u.weakdef->root.u.def.section; 3423 h->root.u.def.value = h->u.weakdef->root.u.def.value; 3424 return TRUE; 3425 } 3426 3427 /* This is a reference to a symbol defined by a dynamic object which 3428 is not a function. */ 3429 3430 /* If we are creating a shared library, we must presume that the 3431 only references to the symbol are via the global offset table. 3432 For such cases we need not do anything here; the relocations will 3433 be handled correctly by relocate_section. */ 3434 if (info->shared) 3435 return TRUE; 3436 3437 /* If there are no references to this symbol that do not use the 3438 GOT, we don't need to generate a copy reloc. */ 3439 if (!h->non_got_ref) 3440 return TRUE; 3441 3442 if (h->size == 0) 3443 { 3444 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), 3445 h->root.root.string); 3446 return TRUE; 3447 } 3448 3449 /* We must allocate the symbol in our .dynbss section, which will 3450 become part of the .bss section of the executable. There will be 3451 an entry for this symbol in the .dynsym section. The dynamic 3452 object will contain position independent code, so all references 3453 from the dynamic object to this symbol will go through the global 3454 offset table. The dynamic linker will use the .dynsym entry to 3455 determine the address it must put in the global offset table, so 3456 both the dynamic object and the regular object will refer to the 3457 same memory location for the variable. */ 3458 3459 s = bfd_get_section_by_name (dynobj, ".dynbss"); 3460 BFD_ASSERT (s != NULL); 3461 3462 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to 3463 copy the initial value out of the dynamic object and into the 3464 runtime process image. We need to remember the offset into the 3465 .rela.bss section we are going to use. */ 3466 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) 3467 { 3468 asection *srel; 3469 3470 srel = bfd_get_section_by_name (dynobj, ".rela.bss"); 3471 BFD_ASSERT (srel != NULL); 3472 srel->size += sizeof (Elf64_External_Rela); 3473 h->needs_copy = 1; 3474 } 3475 3476 /* We need to figure out the alignment required for this symbol. I 3477 have no idea how ELF linkers handle this. */ 3478 power_of_two = bfd_log2 (h->size); 3479 if (power_of_two > 3) 3480 power_of_two = 3; 3481 3482 /* Apply the required alignment. */ 3483 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); 3484 if (power_of_two > bfd_get_section_alignment (dynobj, s)) 3485 { 3486 if (! bfd_set_section_alignment (dynobj, s, power_of_two)) 3487 return FALSE; 3488 } 3489 3490 /* Define the symbol as being at this point in the section. */ 3491 h->root.u.def.section = s; 3492 h->root.u.def.value = s->size; 3493 3494 /* Increment the section size to make room for the symbol. */ 3495 s->size += h->size; 3496 3497 return TRUE; 3498 } 3499 3500 /* This function is called via sh_elf_link_hash_traverse if we are 3501 creating a shared object with -Bsymbolic. It discards the space 3502 allocated to copy PC relative relocs against symbols which are 3503 defined in regular objects. We allocated space for them in the 3504 check_relocs routine, but we won't fill them in in the 3505 relocate_section routine. */ 3506 3507 static bfd_boolean 3508 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h, 3509 void *ignore ATTRIBUTE_UNUSED) 3510 { 3511 struct elf_sh64_pcrel_relocs_copied *s; 3512 3513 if (h->root.root.type == bfd_link_hash_warning) 3514 h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link; 3515 3516 /* We only discard relocs for symbols defined in a regular object. */ 3517 if (!h->root.def_regular) 3518 return TRUE; 3519 3520 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) 3521 s->section->size -= s->count * sizeof (Elf64_External_Rela); 3522 3523 return TRUE; 3524 } 3525 3526 /* Set the sizes of the dynamic sections. */ 3527 3528 static bfd_boolean 3529 sh64_elf64_size_dynamic_sections (bfd *output_bfd, 3530 struct bfd_link_info *info) 3531 { 3532 bfd *dynobj; 3533 asection *s; 3534 bfd_boolean plt; 3535 bfd_boolean relocs; 3536 bfd_boolean reltext; 3537 3538 dynobj = elf_hash_table (info)->dynobj; 3539 BFD_ASSERT (dynobj != NULL); 3540 3541 if (elf_hash_table (info)->dynamic_sections_created) 3542 { 3543 /* Set the contents of the .interp section to the interpreter. */ 3544 if (info->executable) 3545 { 3546 s = bfd_get_section_by_name (dynobj, ".interp"); 3547 BFD_ASSERT (s != NULL); 3548 s->size = sizeof ELF_DYNAMIC_INTERPRETER; 3549 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; 3550 } 3551 } 3552 else 3553 { 3554 /* We may have created entries in the .rela.got section. 3555 However, if we are not creating the dynamic sections, we will 3556 not actually use these entries. Reset the size of .rela.got, 3557 which will cause it to get stripped from the output file 3558 below. */ 3559 s = bfd_get_section_by_name (dynobj, ".rela.got"); 3560 if (s != NULL) 3561 s->size = 0; 3562 } 3563 3564 /* If this is a -Bsymbolic shared link, then we need to discard all 3565 PC relative relocs against symbols defined in a regular object. 3566 We allocated space for them in the check_relocs routine, but we 3567 will not fill them in in the relocate_section routine. */ 3568 if (info->shared && info->symbolic) 3569 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info), 3570 sh64_elf64_discard_copies, NULL); 3571 3572 /* The check_relocs and adjust_dynamic_symbol entry points have 3573 determined the sizes of the various dynamic sections. Allocate 3574 memory for them. */ 3575 plt = FALSE; 3576 relocs = FALSE; 3577 reltext = FALSE; 3578 for (s = dynobj->sections; s != NULL; s = s->next) 3579 { 3580 const char *name; 3581 3582 if ((s->flags & SEC_LINKER_CREATED) == 0) 3583 continue; 3584 3585 /* It's OK to base decisions on the section name, because none 3586 of the dynobj section names depend upon the input files. */ 3587 name = bfd_get_section_name (dynobj, s); 3588 3589 if (strcmp (name, ".plt") == 0) 3590 { 3591 /* Remember whether there is a PLT. */ 3592 plt = s->size != 0; 3593 } 3594 else if (strncmp (name, ".rela", 5) == 0) 3595 { 3596 if (s->size != 0) 3597 { 3598 asection *target; 3599 3600 /* Remember whether there are any reloc sections other 3601 than .rela.plt. */ 3602 if (strcmp (name, ".rela.plt") != 0) 3603 { 3604 const char *outname; 3605 3606 relocs = TRUE; 3607 3608 /* If this relocation section applies to a read only 3609 section, then we probably need a DT_TEXTREL 3610 entry. The entries in the .rela.plt section 3611 really apply to the .got section, which we 3612 created ourselves and so know is not readonly. */ 3613 outname = bfd_get_section_name (output_bfd, 3614 s->output_section); 3615 target = bfd_get_section_by_name (output_bfd, outname + 5); 3616 if (target != NULL 3617 && (target->flags & SEC_READONLY) != 0 3618 && (target->flags & SEC_ALLOC) != 0) 3619 reltext = TRUE; 3620 } 3621 3622 /* We use the reloc_count field as a counter if we need 3623 to copy relocs into the output file. */ 3624 s->reloc_count = 0; 3625 } 3626 } 3627 else if (strncmp (name, ".got", 4) != 0 3628 && strcmp (name, ".dynbss") != 0) 3629 { 3630 /* It's not one of our sections, so don't allocate space. */ 3631 continue; 3632 } 3633 3634 if (s->size == 0) 3635 { 3636 /* If we don't need this section, strip it from the 3637 output file. This is mostly to handle .rela.bss and 3638 .rela.plt. We must create both sections in 3639 create_dynamic_sections, because they must be created 3640 before the linker maps input sections to output 3641 sections. The linker does that before 3642 adjust_dynamic_symbol is called, and it is that 3643 function which decides whether anything needs to go 3644 into these sections. */ 3645 s->flags |= SEC_EXCLUDE; 3646 continue; 3647 } 3648 3649 if ((s->flags & SEC_HAS_CONTENTS) == 0) 3650 continue; 3651 3652 /* Allocate memory for the section contents. */ 3653 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); 3654 if (s->contents == NULL) 3655 return FALSE; 3656 } 3657 3658 if (elf_hash_table (info)->dynamic_sections_created) 3659 { 3660 /* Add some entries to the .dynamic section. We fill in the 3661 values later, in sh64_elf64_finish_dynamic_sections, but we 3662 must add the entries now so that we get the correct size for 3663 the .dynamic section. The DT_DEBUG entry is filled in by the 3664 dynamic linker and used by the debugger. */ 3665 if (info->executable) 3666 { 3667 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) 3668 return FALSE; 3669 } 3670 3671 if (plt) 3672 { 3673 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) 3674 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) 3675 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) 3676 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) 3677 return FALSE; 3678 } 3679 3680 if (relocs) 3681 { 3682 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) 3683 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) 3684 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, 3685 sizeof (Elf64_External_Rela))) 3686 return FALSE; 3687 } 3688 3689 if (reltext) 3690 { 3691 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) 3692 return FALSE; 3693 } 3694 } 3695 3696 return TRUE; 3697 } 3698 3699 /* Finish up dynamic symbol handling. We set the contents of various 3700 dynamic sections here. */ 3701 3702 static bfd_boolean 3703 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd, 3704 struct bfd_link_info *info, 3705 struct elf_link_hash_entry *h, 3706 Elf_Internal_Sym *sym) 3707 { 3708 bfd *dynobj; 3709 3710 dynobj = elf_hash_table (info)->dynobj; 3711 3712 if (h->plt.offset != (bfd_vma) -1) 3713 { 3714 asection *splt; 3715 asection *sgot; 3716 asection *srel; 3717 3718 bfd_vma plt_index; 3719 bfd_vma got_offset; 3720 Elf_Internal_Rela rel; 3721 bfd_byte *loc; 3722 3723 /* This symbol has an entry in the procedure linkage table. Set 3724 it up. */ 3725 3726 BFD_ASSERT (h->dynindx != -1); 3727 3728 splt = bfd_get_section_by_name (dynobj, ".plt"); 3729 sgot = bfd_get_section_by_name (dynobj, ".got.plt"); 3730 srel = bfd_get_section_by_name (dynobj, ".rela.plt"); 3731 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); 3732 3733 /* Get the index in the procedure linkage table which 3734 corresponds to this symbol. This is the index of this symbol 3735 in all the symbols for which we are making plt entries. The 3736 first entry in the procedure linkage table is reserved. */ 3737 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1; 3738 3739 /* Get the offset into the .got table of the entry that 3740 corresponds to this function. Each .got entry is 8 bytes. 3741 The first three are reserved. */ 3742 got_offset = (plt_index + 3) * 8; 3743 3744 if (info->shared) 3745 got_offset -= GOT_BIAS; 3746 3747 /* Fill in the entry in the procedure linkage table. */ 3748 if (! info->shared) 3749 { 3750 if (elf_sh64_plt_entry == NULL) 3751 { 3752 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ? 3753 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le); 3754 } 3755 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry, 3756 elf_sh64_sizeof_plt (info)); 3757 movi_3shori_putval (output_bfd, 3758 (sgot->output_section->vma 3759 + sgot->output_offset 3760 + got_offset), 3761 (splt->contents + h->plt.offset 3762 + elf_sh64_plt_symbol_offset (info))); 3763 3764 /* Set bottom bit because its for a branch to SHmedia */ 3765 movi_shori_putval (output_bfd, 3766 -(h->plt.offset 3767 + elf_sh64_plt_plt0_offset (info) + 8) 3768 | 1, 3769 (splt->contents + h->plt.offset 3770 + elf_sh64_plt_plt0_offset (info))); 3771 } 3772 else 3773 { 3774 if (elf_sh64_pic_plt_entry == NULL) 3775 { 3776 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 3777 elf_sh64_pic_plt_entry_be : 3778 elf_sh64_pic_plt_entry_le); 3779 } 3780 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry, 3781 elf_sh64_sizeof_plt (info)); 3782 movi_shori_putval (output_bfd, got_offset, 3783 (splt->contents + h->plt.offset 3784 + elf_sh64_plt_symbol_offset (info))); 3785 } 3786 3787 if (info->shared) 3788 got_offset += GOT_BIAS; 3789 3790 movi_shori_putval (output_bfd, 3791 plt_index * sizeof (Elf64_External_Rela), 3792 (splt->contents + h->plt.offset 3793 + elf_sh64_plt_reloc_offset (info))); 3794 3795 /* Fill in the entry in the global offset table. */ 3796 bfd_put_64 (output_bfd, 3797 (splt->output_section->vma 3798 + splt->output_offset 3799 + h->plt.offset 3800 + elf_sh64_plt_temp_offset (info)), 3801 sgot->contents + got_offset); 3802 3803 /* Fill in the entry in the .rela.plt section. */ 3804 rel.r_offset = (sgot->output_section->vma 3805 + sgot->output_offset 3806 + got_offset); 3807 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64); 3808 rel.r_addend = 0; 3809 rel.r_addend = GOT_BIAS; 3810 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela); 3811 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3812 3813 if (!h->def_regular) 3814 { 3815 /* Mark the symbol as undefined, rather than as defined in 3816 the .plt section. Leave the value alone. */ 3817 sym->st_shndx = SHN_UNDEF; 3818 } 3819 } 3820 3821 if (h->got.offset != (bfd_vma) -1) 3822 { 3823 asection *sgot; 3824 asection *srel; 3825 Elf_Internal_Rela rel; 3826 bfd_byte *loc; 3827 3828 /* This symbol has an entry in the global offset table. Set it 3829 up. */ 3830 3831 sgot = bfd_get_section_by_name (dynobj, ".got"); 3832 srel = bfd_get_section_by_name (dynobj, ".rela.got"); 3833 BFD_ASSERT (sgot != NULL && srel != NULL); 3834 3835 rel.r_offset = (sgot->output_section->vma 3836 + sgot->output_offset 3837 + (h->got.offset &~ 1)); 3838 3839 /* If this is a -Bsymbolic link, and the symbol is defined 3840 locally, we just want to emit a RELATIVE reloc. Likewise if 3841 the symbol was forced to be local because of a version file. 3842 The entry in the global offset table will already have been 3843 initialized in the relocate_section function. */ 3844 if (info->shared 3845 && (info->symbolic || h->dynindx == -1) 3846 && h->def_regular) 3847 { 3848 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 3849 rel.r_addend = (h->root.u.def.value 3850 + h->root.u.def.section->output_section->vma 3851 + h->root.u.def.section->output_offset); 3852 } 3853 else 3854 { 3855 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); 3856 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64); 3857 rel.r_addend = 0; 3858 } 3859 3860 loc = srel->contents; 3861 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); 3862 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3863 } 3864 3865 if (h->needs_copy) 3866 { 3867 asection *s; 3868 Elf_Internal_Rela rel; 3869 bfd_byte *loc; 3870 3871 /* This symbol needs a copy reloc. Set it up. */ 3872 3873 BFD_ASSERT (h->dynindx != -1 3874 && (h->root.type == bfd_link_hash_defined 3875 || h->root.type == bfd_link_hash_defweak)); 3876 3877 s = bfd_get_section_by_name (h->root.u.def.section->owner, 3878 ".rela.bss"); 3879 BFD_ASSERT (s != NULL); 3880 3881 rel.r_offset = (h->root.u.def.value 3882 + h->root.u.def.section->output_section->vma 3883 + h->root.u.def.section->output_offset); 3884 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64); 3885 rel.r_addend = 0; 3886 loc = s->contents; 3887 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 3888 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3889 } 3890 3891 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ 3892 if (strcmp (h->root.root.string, "_DYNAMIC") == 0 3893 || h == elf_hash_table (info)->hgot) 3894 sym->st_shndx = SHN_ABS; 3895 3896 return TRUE; 3897 } 3898 3899 /* Finish up the dynamic sections. */ 3900 3901 static bfd_boolean 3902 sh64_elf64_finish_dynamic_sections (bfd *output_bfd, 3903 struct bfd_link_info *info) 3904 { 3905 bfd *dynobj; 3906 asection *sgot; 3907 asection *sdyn; 3908 3909 dynobj = elf_hash_table (info)->dynobj; 3910 3911 sgot = bfd_get_section_by_name (dynobj, ".got.plt"); 3912 BFD_ASSERT (sgot != NULL); 3913 sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); 3914 3915 if (elf_hash_table (info)->dynamic_sections_created) 3916 { 3917 asection *splt; 3918 Elf64_External_Dyn *dyncon, *dynconend; 3919 3920 BFD_ASSERT (sdyn != NULL); 3921 3922 dyncon = (Elf64_External_Dyn *) sdyn->contents; 3923 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); 3924 for (; dyncon < dynconend; dyncon++) 3925 { 3926 Elf_Internal_Dyn dyn; 3927 const char *name; 3928 asection *s; 3929 struct elf_link_hash_entry *h; 3930 3931 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); 3932 3933 switch (dyn.d_tag) 3934 { 3935 default: 3936 break; 3937 3938 case DT_INIT: 3939 name = info->init_function; 3940 goto get_sym; 3941 3942 case DT_FINI: 3943 name = info->fini_function; 3944 get_sym: 3945 if (dyn.d_un.d_val != 0) 3946 { 3947 h = elf_link_hash_lookup (elf_hash_table (info), name, 3948 FALSE, FALSE, TRUE); 3949 if (h != NULL && (h->other & STO_SH5_ISA32)) 3950 { 3951 dyn.d_un.d_val |= 1; 3952 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 3953 } 3954 } 3955 break; 3956 3957 case DT_PLTGOT: 3958 name = ".got"; 3959 goto get_vma; 3960 3961 case DT_JMPREL: 3962 name = ".rela.plt"; 3963 get_vma: 3964 s = bfd_get_section_by_name (output_bfd, name); 3965 BFD_ASSERT (s != NULL); 3966 dyn.d_un.d_ptr = s->vma; 3967 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 3968 break; 3969 3970 case DT_PLTRELSZ: 3971 s = bfd_get_section_by_name (output_bfd, ".rela.plt"); 3972 BFD_ASSERT (s != NULL); 3973 dyn.d_un.d_val = s->size; 3974 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 3975 break; 3976 3977 case DT_RELASZ: 3978 /* My reading of the SVR4 ABI indicates that the 3979 procedure linkage table relocs (DT_JMPREL) should be 3980 included in the overall relocs (DT_RELA). This is 3981 what Solaris does. However, UnixWare can not handle 3982 that case. Therefore, we override the DT_RELASZ entry 3983 here to make it not include the JMPREL relocs. Since 3984 the linker script arranges for .rela.plt to follow all 3985 other relocation sections, we don't have to worry 3986 about changing the DT_RELA entry. */ 3987 s = bfd_get_section_by_name (output_bfd, ".rela.plt"); 3988 if (s != NULL) 3989 dyn.d_un.d_val -= s->size; 3990 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 3991 break; 3992 } 3993 } 3994 3995 /* Fill in the first entry in the procedure linkage table. */ 3996 splt = bfd_get_section_by_name (dynobj, ".plt"); 3997 if (splt && splt->size > 0) 3998 { 3999 if (info->shared) 4000 { 4001 if (elf_sh64_pic_plt_entry == NULL) 4002 { 4003 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 4004 elf_sh64_pic_plt_entry_be : 4005 elf_sh64_pic_plt_entry_le); 4006 } 4007 memcpy (splt->contents, elf_sh64_pic_plt_entry, 4008 elf_sh64_sizeof_plt (info)); 4009 } 4010 else 4011 { 4012 if (elf_sh64_plt0_entry == NULL) 4013 { 4014 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ? 4015 elf_sh64_plt0_entry_be : 4016 elf_sh64_plt0_entry_le); 4017 } 4018 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE); 4019 movi_3shori_putval (output_bfd, 4020 sgot->output_section->vma 4021 + sgot->output_offset, 4022 splt->contents 4023 + elf_sh64_plt0_gotplt_offset (info)); 4024 } 4025 4026 /* UnixWare sets the entsize of .plt to 8, although that doesn't 4027 really seem like the right value. */ 4028 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8; 4029 } 4030 } 4031 4032 /* Fill in the first three entries in the global offset table. */ 4033 if (sgot->size > 0) 4034 { 4035 if (sdyn == NULL) 4036 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); 4037 else 4038 bfd_put_64 (output_bfd, 4039 sdyn->output_section->vma + sdyn->output_offset, 4040 sgot->contents); 4041 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8); 4042 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16); 4043 } 4044 4045 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; 4046 4047 return TRUE; 4048 } 4049 4050 /* Merge non visibility st_other attribute when the symbol comes from 4051 a dynamic object. */ 4052 static void 4053 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h, 4054 const Elf_Internal_Sym *isym, 4055 bfd_boolean definition, 4056 bfd_boolean dynamic) 4057 { 4058 if (isym->st_other != 0 && dynamic) 4059 { 4060 unsigned char other; 4061 4062 /* Take the balance of OTHER from the definition. */ 4063 other = (definition ? isym->st_other : h->other); 4064 other &= ~ ELF_ST_VISIBILITY (-1); 4065 h->other = other | ELF_ST_VISIBILITY (h->other); 4066 } 4067 4068 return; 4069 } 4070 4071 static const struct bfd_elf_special_section sh64_elf64_special_sections[]= 4072 { 4073 { ".cranges", 8, 0, SHT_PROGBITS, 0 }, 4074 { NULL, 0, 0, 0, 0 } 4075 }; 4076 4077 #define TARGET_BIG_SYM bfd_elf64_sh64_vec 4078 #define TARGET_BIG_NAME "elf64-sh64" 4079 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec 4080 #define TARGET_LITTLE_NAME "elf64-sh64l" 4081 #define ELF_ARCH bfd_arch_sh 4082 #define ELF_MACHINE_CODE EM_SH 4083 #define ELF_MAXPAGESIZE 128 4084 4085 #define elf_symbol_leading_char '_' 4086 4087 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup 4088 #define elf_info_to_howto sh_elf64_info_to_howto 4089 4090 /* Note: there's no relaxation at present. */ 4091 4092 #define elf_backend_relocate_section sh_elf64_relocate_section 4093 #define bfd_elf64_bfd_get_relocated_section_contents \ 4094 sh_elf64_get_relocated_section_contents 4095 #define elf_backend_object_p sh_elf64_set_mach_from_flags 4096 #define bfd_elf64_bfd_set_private_flags \ 4097 sh_elf64_set_private_flags 4098 #define bfd_elf64_bfd_copy_private_bfd_data \ 4099 sh_elf64_copy_private_data 4100 #define bfd_elf64_bfd_merge_private_bfd_data \ 4101 sh_elf64_merge_private_data 4102 #define elf_backend_fake_sections sh64_elf64_fake_sections 4103 4104 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook 4105 #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook 4106 #define elf_backend_check_relocs sh_elf64_check_relocs 4107 4108 #define elf_backend_can_gc_sections 1 4109 4110 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type 4111 4112 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook 4113 4114 #define elf_backend_link_output_symbol_hook \ 4115 sh64_elf64_link_output_symbol_hook 4116 4117 #define elf_backend_merge_symbol_attribute \ 4118 sh64_elf64_merge_symbol_attribute 4119 4120 #define elf_backend_final_write_processing \ 4121 sh64_elf64_final_write_processing 4122 4123 #define elf_backend_create_dynamic_sections \ 4124 sh64_elf64_create_dynamic_sections 4125 #define bfd_elf64_bfd_link_hash_table_create \ 4126 sh64_elf64_link_hash_table_create 4127 #define elf_backend_adjust_dynamic_symbol \ 4128 sh64_elf64_adjust_dynamic_symbol 4129 #define elf_backend_size_dynamic_sections \ 4130 sh64_elf64_size_dynamic_sections 4131 #define elf_backend_finish_dynamic_symbol \ 4132 sh64_elf64_finish_dynamic_symbol 4133 #define elf_backend_finish_dynamic_sections \ 4134 sh64_elf64_finish_dynamic_sections 4135 #define elf_backend_special_sections sh64_elf64_special_sections 4136 4137 #define elf_backend_want_got_plt 1 4138 #define elf_backend_plt_readonly 1 4139 #define elf_backend_want_plt_sym 0 4140 #define elf_backend_got_header_size 24 4141 4142 #include "elf64-target.h" 4143 4144 /* NetBSD support. */ 4145 #undef TARGET_BIG_SYM 4146 #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec 4147 #undef TARGET_BIG_NAME 4148 #define TARGET_BIG_NAME "elf64-sh64-nbsd" 4149 #undef TARGET_LITTLE_SYM 4150 #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec 4151 #undef TARGET_LITTLE_NAME 4152 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd" 4153 #undef ELF_MAXPAGESIZE 4154 #define ELF_MAXPAGESIZE 0x10000 4155 #undef elf_symbol_leading_char 4156 #define elf_symbol_leading_char 0 4157 4158 #define elf64_bed elf64_sh64_nbsd_bed 4159 4160 #include "elf64-target.h" 4161 4162 /* Linux support. */ 4163 #undef TARGET_BIG_SYM 4164 #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec 4165 #undef TARGET_BIG_NAME 4166 #define TARGET_BIG_NAME "elf64-sh64big-linux" 4167 #undef TARGET_LITTLE_SYM 4168 #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec 4169 #undef TARGET_LITTLE_NAME 4170 #define TARGET_LITTLE_NAME "elf64-sh64-linux" 4171 4172 #define INCLUDED_TARGET_FILE 4173 #include "elf64-target.h" 4174