1/* SuperH SH64-specific support for 64-bit ELF 2 Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 19 20#define SH64_ELF64 21 22#include "bfd.h" 23#include "sysdep.h" 24#include "bfdlink.h" 25#include "libbfd.h" 26#include "elf-bfd.h" 27#include "elf/sh.h" 28 29/* Add a suffix for datalabel indirection symbols. It must not match any 30 other symbols; user symbols with or without version or other 31 decoration. It must only be used internally and not emitted by any 32 means. */ 33#define DATALABEL_SUFFIX " DL" 34 35#define GOT_BIAS (-((long)-32768)) 36 37#define PLT_ENTRY_SIZE 64 38 39/* Return size of a PLT entry. */ 40#define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE 41 42/* Return offset of the PLT0 address in an absolute PLT entry. */ 43#define elf_sh64_plt_plt0_offset(info) 32 44 45/* Return offset of the linker in PLT0 entry. */ 46#define elf_sh64_plt0_gotplt_offset(info) 0 47 48/* Return offset of the trampoline in PLT entry */ 49#define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */ 50 51/* Return offset of the symbol in PLT entry. */ 52#define elf_sh64_plt_symbol_offset(info) 0 53 54/* Return offset of the relocation in PLT entry. */ 55#define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44) 56 57#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" 58 59/* The sh linker needs to keep track of the number of relocs that it 60 decides to copy in check_relocs for each symbol. This is so that 61 it can discard PC relative relocs if it doesn't need them when 62 linking with -Bsymbolic. We store the information in a field 63 extending the regular ELF linker hash table. */ 64 65/* This structure keeps track of the number of PC relative relocs we 66 have copied for a given symbol. */ 67 68struct elf_sh64_pcrel_relocs_copied 69{ 70 /* Next section. */ 71 struct elf_sh64_pcrel_relocs_copied *next; 72 /* A section in dynobj. */ 73 asection *section; 74 /* Number of relocs copied in this section. */ 75 bfd_size_type count; 76}; 77 78/* sh ELF linker hash entry. */ 79 80struct elf_sh64_link_hash_entry 81{ 82 struct elf_link_hash_entry root; 83 84 bfd_vma datalabel_got_offset; 85 86 /* Number of PC relative relocs copied for this symbol. */ 87 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied; 88}; 89 90/* sh ELF linker hash table. */ 91 92struct elf_sh64_link_hash_table 93{ 94 struct elf_link_hash_table root; 95}; 96 97/* Traverse an sh ELF linker hash table. */ 98 99#define sh64_elf64_link_hash_traverse(table, func, info) \ 100 (elf_link_hash_traverse \ 101 (&(table)->root, \ 102 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ 103 (info))) 104 105/* Get the sh ELF linker hash table from a link_info structure. */ 106 107#define sh64_elf64_hash_table(p) \ 108 ((struct elf_sh64_link_hash_table *) ((p)->hash)) 109 110static bfd_boolean sh_elf64_copy_private_data 111 (bfd *, bfd *); 112static bfd_boolean sh_elf64_copy_private_data_internal 113 (bfd *, bfd *); 114static bfd_boolean sh_elf64_merge_private_data 115 (bfd *, bfd *); 116static bfd_reloc_status_type sh_elf64_ignore_reloc 117 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 118static bfd_reloc_status_type sh_elf64_reloc 119 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 120static reloc_howto_type *sh_elf64_reloc_type_lookup 121 (bfd *, bfd_reloc_code_real_type); 122static void sh_elf64_info_to_howto 123 (bfd *, arelent *, Elf_Internal_Rela *); 124static bfd_boolean sh_elf64_relocate_section 125 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, 126 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **); 127static bfd_byte *sh_elf64_get_relocated_section_contents 128 (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, 129 bfd_boolean, asymbol **); 130static bfd_boolean sh_elf64_set_mach_from_flags 131 (bfd *); 132static bfd_boolean sh_elf64_set_private_flags 133 (bfd *, flagword); 134static asection *sh_elf64_gc_mark_hook 135 (asection *, struct bfd_link_info *, Elf_Internal_Rela *, 136 struct elf_link_hash_entry *, Elf_Internal_Sym *); 137static bfd_boolean sh_elf64_gc_sweep_hook 138 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *); 139static bfd_boolean sh_elf64_check_relocs 140 (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *); 141static int sh64_elf64_get_symbol_type 142 (Elf_Internal_Sym *, int); 143static bfd_boolean sh64_elf64_add_symbol_hook 144 (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **, 145 flagword *, asection **, bfd_vma *); 146static bfd_boolean sh64_elf64_link_output_symbol_hook 147 (struct bfd_link_info *, const char *, Elf_Internal_Sym *, asection *, 148 struct elf_link_hash_entry *); 149static bfd_boolean sh64_elf64_fake_sections 150 (bfd *, Elf_Internal_Shdr *, asection *); 151static void sh64_elf64_final_write_processing 152 (bfd *, bfd_boolean); 153static struct bfd_hash_entry *sh64_elf64_link_hash_newfunc 154 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 155static struct bfd_link_hash_table *sh64_elf64_link_hash_table_create 156 (bfd *); 157inline static void movi_shori_putval 158 (bfd *, unsigned long, char *); 159inline static void movi_3shori_putval 160 (bfd *, bfd_vma, char *); 161static bfd_boolean sh64_elf64_create_dynamic_sections 162 (bfd *, struct bfd_link_info *); 163static bfd_boolean sh64_elf64_adjust_dynamic_symbol 164 (struct bfd_link_info *info, struct elf_link_hash_entry *); 165static bfd_boolean sh64_elf64_discard_copies 166 (struct elf_sh64_link_hash_entry *, void *); 167static bfd_boolean sh64_elf64_size_dynamic_sections 168 (bfd *, struct bfd_link_info *); 169static bfd_boolean sh64_elf64_finish_dynamic_symbol 170 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, 171 Elf_Internal_Sym *); 172static bfd_boolean sh64_elf64_finish_dynamic_sections 173 (bfd *, struct bfd_link_info *); 174 175static reloc_howto_type sh_elf64_howto_table[] = { 176 /* No relocation. */ 177 HOWTO (R_SH_NONE, /* type */ 178 0, /* rightshift */ 179 0, /* size (0 = byte, 1 = short, 2 = long) */ 180 0, /* bitsize */ 181 FALSE, /* pc_relative */ 182 0, /* bitpos */ 183 complain_overflow_dont, /* complain_on_overflow */ 184 sh_elf64_ignore_reloc, /* special_function */ 185 "R_SH_NONE", /* name */ 186 FALSE, /* partial_inplace */ 187 0, /* src_mask */ 188 0, /* dst_mask */ 189 FALSE), /* pcrel_offset */ 190 191 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and 192 src_mask to a non-zero value is similar to the COFF toolchain. */ 193 HOWTO (R_SH_DIR32, /* type */ 194 0, /* rightshift */ 195 2, /* size (0 = byte, 1 = short, 2 = long) */ 196 32, /* bitsize */ 197 FALSE, /* pc_relative */ 198 0, /* bitpos */ 199 complain_overflow_bitfield, /* complain_on_overflow */ 200 sh_elf64_reloc, /* special_function */ 201 "R_SH_DIR32", /* name */ 202 TRUE, /* partial_inplace */ 203 0xffffffff, /* src_mask */ 204 0xffffffff, /* dst_mask */ 205 FALSE), /* pcrel_offset */ 206 207 /* 32 bit PC relative relocation. */ 208 HOWTO (R_SH_REL32, /* type */ 209 0, /* rightshift */ 210 2, /* size (0 = byte, 1 = short, 2 = long) */ 211 32, /* bitsize */ 212 TRUE, /* pc_relative */ 213 0, /* bitpos */ 214 complain_overflow_signed, /* complain_on_overflow */ 215 sh_elf64_ignore_reloc, /* special_function */ 216 "R_SH_REL32", /* name */ 217 FALSE, /* partial_inplace */ 218 0, /* src_mask */ 219 0xffffffff, /* dst_mask */ 220 TRUE), /* pcrel_offset */ 221 222 /* For 32-bit sh, this is R_SH_DIR8WPN. */ 223 EMPTY_HOWTO (3), 224 225 /* For 32-bit sh, this is R_SH_IND12W. */ 226 EMPTY_HOWTO (4), 227 228 /* For 32-bit sh, this is R_SH_DIR8WPL. */ 229 EMPTY_HOWTO (5), 230 231 /* For 32-bit sh, this is R_SH_DIR8WPZ. */ 232 EMPTY_HOWTO (6), 233 234 /* For 32-bit sh, this is R_SH_DIR8BP. */ 235 EMPTY_HOWTO (7), 236 237 /* For 32-bit sh, this is R_SH_DIR8W. */ 238 EMPTY_HOWTO (8), 239 240 /* For 32-bit sh, this is R_SH_DIR8L. */ 241 EMPTY_HOWTO (9), 242 243 EMPTY_HOWTO (10), 244 EMPTY_HOWTO (11), 245 EMPTY_HOWTO (12), 246 EMPTY_HOWTO (13), 247 EMPTY_HOWTO (14), 248 EMPTY_HOWTO (15), 249 EMPTY_HOWTO (16), 250 EMPTY_HOWTO (17), 251 EMPTY_HOWTO (18), 252 EMPTY_HOWTO (19), 253 EMPTY_HOWTO (20), 254 EMPTY_HOWTO (21), 255 EMPTY_HOWTO (22), 256 EMPTY_HOWTO (23), 257 EMPTY_HOWTO (24), 258 259 /* The remaining relocs are a GNU extension used for relaxing. The 260 final pass of the linker never needs to do anything with any of 261 these relocs. Any required operations are handled by the 262 relaxation code. */ 263 264 /* A 16 bit switch table entry. This is generated for an expression 265 such as ``.word L1 - L2''. The offset holds the difference 266 between the reloc address and L2. */ 267 HOWTO (R_SH_SWITCH16, /* type */ 268 0, /* rightshift */ 269 1, /* size (0 = byte, 1 = short, 2 = long) */ 270 16, /* bitsize */ 271 FALSE, /* pc_relative */ 272 0, /* bitpos */ 273 complain_overflow_unsigned, /* complain_on_overflow */ 274 sh_elf64_ignore_reloc, /* special_function */ 275 "R_SH_SWITCH16", /* name */ 276 FALSE, /* partial_inplace */ 277 0, /* src_mask */ 278 0, /* dst_mask */ 279 TRUE), /* pcrel_offset */ 280 281 /* A 32 bit switch table entry. This is generated for an expression 282 such as ``.long L1 - L2''. The offset holds the difference 283 between the reloc address and L2. */ 284 HOWTO (R_SH_SWITCH32, /* type */ 285 0, /* rightshift */ 286 2, /* size (0 = byte, 1 = short, 2 = long) */ 287 32, /* bitsize */ 288 FALSE, /* pc_relative */ 289 0, /* bitpos */ 290 complain_overflow_unsigned, /* complain_on_overflow */ 291 sh_elf64_ignore_reloc, /* special_function */ 292 "R_SH_SWITCH32", /* name */ 293 FALSE, /* partial_inplace */ 294 0, /* src_mask */ 295 0, /* dst_mask */ 296 TRUE), /* pcrel_offset */ 297 298 /* For 32-bit sh, this is R_SH_USES. */ 299 EMPTY_HOWTO (27), 300 301 /* For 32-bit sh, this is R_SH_COUNT. */ 302 EMPTY_HOWTO (28), 303 304 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation, 305 this might be emitted. When linker relaxation is implemented, we 306 might want to use it. */ 307 EMPTY_HOWTO (29), 308 309 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation, 310 this might be emitted. When linker relaxation is implemented, we 311 might want to use it. */ 312 EMPTY_HOWTO (30), 313 314 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation, 315 this might be emitted. When linker relaxation is implemented, we 316 might want to use it. */ 317 EMPTY_HOWTO (31), 318 319 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation, 320 this might be emitted. When linker relaxation is implemented, we 321 might want to use it. */ 322 EMPTY_HOWTO (32), 323 324 /* An 8 bit switch table entry. This is generated for an expression 325 such as ``.word L1 - L2''. The offset holds the difference 326 between the reloc address and L2. */ 327 HOWTO (R_SH_SWITCH8, /* type */ 328 0, /* rightshift */ 329 0, /* size (0 = byte, 1 = short, 2 = long) */ 330 8, /* bitsize */ 331 FALSE, /* pc_relative */ 332 0, /* bitpos */ 333 complain_overflow_unsigned, /* complain_on_overflow */ 334 sh_elf64_ignore_reloc, /* special_function */ 335 "R_SH_SWITCH8", /* name */ 336 FALSE, /* partial_inplace */ 337 0, /* src_mask */ 338 0, /* dst_mask */ 339 TRUE), /* pcrel_offset */ 340 341 /* GNU extension to record C++ vtable hierarchy */ 342 HOWTO (R_SH_GNU_VTINHERIT, /* type */ 343 0, /* rightshift */ 344 2, /* size (0 = byte, 1 = short, 2 = long) */ 345 0, /* bitsize */ 346 FALSE, /* pc_relative */ 347 0, /* bitpos */ 348 complain_overflow_dont, /* complain_on_overflow */ 349 NULL, /* special_function */ 350 "R_SH_GNU_VTINHERIT", /* name */ 351 FALSE, /* partial_inplace */ 352 0, /* src_mask */ 353 0, /* dst_mask */ 354 FALSE), /* pcrel_offset */ 355 356 /* GNU extension to record C++ vtable member usage */ 357 HOWTO (R_SH_GNU_VTENTRY, /* type */ 358 0, /* rightshift */ 359 2, /* size (0 = byte, 1 = short, 2 = long) */ 360 0, /* bitsize */ 361 FALSE, /* pc_relative */ 362 0, /* bitpos */ 363 complain_overflow_dont, /* complain_on_overflow */ 364 _bfd_elf_rel_vtable_reloc_fn, /* special_function */ 365 "R_SH_GNU_VTENTRY", /* name */ 366 FALSE, /* partial_inplace */ 367 0, /* src_mask */ 368 0, /* dst_mask */ 369 FALSE), /* pcrel_offset */ 370 371 /* For 32-bit sh, this is R_SH_LOOP_START. */ 372 EMPTY_HOWTO (36), 373 374 /* For 32-bit sh, this is R_SH_LOOP_END. */ 375 EMPTY_HOWTO (37), 376 377 EMPTY_HOWTO (38), 378 EMPTY_HOWTO (39), 379 EMPTY_HOWTO (40), 380 EMPTY_HOWTO (41), 381 EMPTY_HOWTO (42), 382 EMPTY_HOWTO (43), 383 EMPTY_HOWTO (44), 384 385 /* Used in SHLLI.L and SHLRI.L. */ 386 HOWTO (R_SH_DIR5U, /* type */ 387 0, /* rightshift */ 388 2, /* size (0 = byte, 1 = short, 2 = long) */ 389 5, /* bitsize */ 390 FALSE, /* pc_relative */ 391 10, /* bitpos */ 392 complain_overflow_unsigned, /* complain_on_overflow */ 393 bfd_elf_generic_reloc, /* special_function */ 394 "R_SH_DIR5U", /* name */ 395 FALSE, /* partial_inplace */ 396 0, /* src_mask */ 397 0xfc00, /* dst_mask */ 398 FALSE), /* pcrel_offset */ 399 400 /* Used in SHARI, SHLLI et al. */ 401 HOWTO (R_SH_DIR6U, /* type */ 402 0, /* rightshift */ 403 2, /* size (0 = byte, 1 = short, 2 = long) */ 404 6, /* bitsize */ 405 FALSE, /* pc_relative */ 406 10, /* bitpos */ 407 complain_overflow_unsigned, /* complain_on_overflow */ 408 bfd_elf_generic_reloc, /* special_function */ 409 "R_SH_DIR6U", /* name */ 410 FALSE, /* partial_inplace */ 411 0, /* src_mask */ 412 0xfc00, /* dst_mask */ 413 FALSE), /* pcrel_offset */ 414 415 /* Used in BxxI, LDHI.L et al. */ 416 HOWTO (R_SH_DIR6S, /* type */ 417 0, /* rightshift */ 418 2, /* size (0 = byte, 1 = short, 2 = long) */ 419 6, /* bitsize */ 420 FALSE, /* pc_relative */ 421 10, /* bitpos */ 422 complain_overflow_signed, /* complain_on_overflow */ 423 bfd_elf_generic_reloc, /* special_function */ 424 "R_SH_DIR6S", /* name */ 425 FALSE, /* partial_inplace */ 426 0, /* src_mask */ 427 0xfc00, /* dst_mask */ 428 FALSE), /* pcrel_offset */ 429 430 /* Used in ADDI, ANDI et al. */ 431 HOWTO (R_SH_DIR10S, /* type */ 432 0, /* rightshift */ 433 2, /* size (0 = byte, 1 = short, 2 = long) */ 434 10, /* bitsize */ 435 FALSE, /* pc_relative */ 436 10, /* bitpos */ 437 complain_overflow_signed, /* complain_on_overflow */ 438 bfd_elf_generic_reloc, /* special_function */ 439 "R_SH_DIR10S", /* name */ 440 FALSE, /* partial_inplace */ 441 0, /* src_mask */ 442 0xffc00, /* dst_mask */ 443 FALSE), /* pcrel_offset */ 444 445 /* Used in LD.UW, ST.W et al. */ 446 HOWTO (R_SH_DIR10SW, /* type */ 447 1, /* rightshift */ 448 2, /* size (0 = byte, 1 = short, 2 = long) */ 449 11, /* bitsize */ 450 FALSE, /* pc_relative */ 451 10, /* bitpos */ 452 complain_overflow_signed, /* complain_on_overflow */ 453 bfd_elf_generic_reloc, /* special_function */ 454 "R_SH_DIR10SW", /* name */ 455 FALSE, /* partial_inplace */ 456 0, /* src_mask */ 457 0xffc00, /* dst_mask */ 458 FALSE), /* pcrel_offset */ 459 460 /* Used in LD.L, FLD.S et al. */ 461 HOWTO (R_SH_DIR10SL, /* type */ 462 2, /* rightshift */ 463 2, /* size (0 = byte, 1 = short, 2 = long) */ 464 12, /* bitsize */ 465 FALSE, /* pc_relative */ 466 10, /* bitpos */ 467 complain_overflow_signed, /* complain_on_overflow */ 468 bfd_elf_generic_reloc, /* special_function */ 469 "R_SH_DIR10SL", /* name */ 470 FALSE, /* partial_inplace */ 471 0, /* src_mask */ 472 0xffc00, /* dst_mask */ 473 FALSE), /* pcrel_offset */ 474 475 /* Used in FLD.D, FST.P et al. */ 476 HOWTO (R_SH_DIR10SQ, /* type */ 477 3, /* rightshift */ 478 2, /* size (0 = byte, 1 = short, 2 = long) */ 479 13, /* bitsize */ 480 FALSE, /* pc_relative */ 481 10, /* bitpos */ 482 complain_overflow_signed, /* complain_on_overflow */ 483 bfd_elf_generic_reloc, /* special_function */ 484 "R_SH_DIR10SQ", /* name */ 485 FALSE, /* partial_inplace */ 486 0, /* src_mask */ 487 0xffc00, /* dst_mask */ 488 FALSE), /* pcrel_offset */ 489 490 EMPTY_HOWTO (52), 491 EMPTY_HOWTO (53), 492 EMPTY_HOWTO (54), 493 EMPTY_HOWTO (55), 494 EMPTY_HOWTO (56), 495 EMPTY_HOWTO (57), 496 EMPTY_HOWTO (58), 497 EMPTY_HOWTO (59), 498 EMPTY_HOWTO (60), 499 EMPTY_HOWTO (61), 500 EMPTY_HOWTO (62), 501 EMPTY_HOWTO (63), 502 EMPTY_HOWTO (64), 503 EMPTY_HOWTO (65), 504 EMPTY_HOWTO (66), 505 EMPTY_HOWTO (67), 506 EMPTY_HOWTO (68), 507 EMPTY_HOWTO (69), 508 EMPTY_HOWTO (70), 509 EMPTY_HOWTO (71), 510 EMPTY_HOWTO (72), 511 EMPTY_HOWTO (73), 512 EMPTY_HOWTO (74), 513 EMPTY_HOWTO (75), 514 EMPTY_HOWTO (76), 515 EMPTY_HOWTO (77), 516 EMPTY_HOWTO (78), 517 EMPTY_HOWTO (79), 518 EMPTY_HOWTO (80), 519 EMPTY_HOWTO (81), 520 EMPTY_HOWTO (82), 521 EMPTY_HOWTO (83), 522 EMPTY_HOWTO (84), 523 EMPTY_HOWTO (85), 524 EMPTY_HOWTO (86), 525 EMPTY_HOWTO (87), 526 EMPTY_HOWTO (88), 527 EMPTY_HOWTO (89), 528 EMPTY_HOWTO (90), 529 EMPTY_HOWTO (91), 530 EMPTY_HOWTO (92), 531 EMPTY_HOWTO (93), 532 EMPTY_HOWTO (94), 533 EMPTY_HOWTO (95), 534 EMPTY_HOWTO (96), 535 EMPTY_HOWTO (97), 536 EMPTY_HOWTO (98), 537 EMPTY_HOWTO (99), 538 EMPTY_HOWTO (100), 539 EMPTY_HOWTO (101), 540 EMPTY_HOWTO (102), 541 EMPTY_HOWTO (103), 542 EMPTY_HOWTO (104), 543 EMPTY_HOWTO (105), 544 EMPTY_HOWTO (106), 545 EMPTY_HOWTO (107), 546 EMPTY_HOWTO (108), 547 EMPTY_HOWTO (109), 548 EMPTY_HOWTO (110), 549 EMPTY_HOWTO (111), 550 EMPTY_HOWTO (112), 551 EMPTY_HOWTO (113), 552 EMPTY_HOWTO (114), 553 EMPTY_HOWTO (115), 554 EMPTY_HOWTO (116), 555 EMPTY_HOWTO (117), 556 EMPTY_HOWTO (118), 557 EMPTY_HOWTO (119), 558 EMPTY_HOWTO (120), 559 EMPTY_HOWTO (121), 560 EMPTY_HOWTO (122), 561 EMPTY_HOWTO (123), 562 EMPTY_HOWTO (124), 563 EMPTY_HOWTO (125), 564 EMPTY_HOWTO (126), 565 EMPTY_HOWTO (127), 566 EMPTY_HOWTO (128), 567 EMPTY_HOWTO (129), 568 EMPTY_HOWTO (130), 569 EMPTY_HOWTO (131), 570 EMPTY_HOWTO (132), 571 EMPTY_HOWTO (133), 572 EMPTY_HOWTO (134), 573 EMPTY_HOWTO (135), 574 EMPTY_HOWTO (136), 575 EMPTY_HOWTO (137), 576 EMPTY_HOWTO (138), 577 EMPTY_HOWTO (139), 578 EMPTY_HOWTO (140), 579 EMPTY_HOWTO (141), 580 EMPTY_HOWTO (142), 581 EMPTY_HOWTO (143), 582 EMPTY_HOWTO (144), 583 EMPTY_HOWTO (145), 584 EMPTY_HOWTO (146), 585 EMPTY_HOWTO (147), 586 EMPTY_HOWTO (148), 587 EMPTY_HOWTO (149), 588 EMPTY_HOWTO (150), 589 EMPTY_HOWTO (151), 590 EMPTY_HOWTO (152), 591 EMPTY_HOWTO (153), 592 EMPTY_HOWTO (154), 593 EMPTY_HOWTO (155), 594 EMPTY_HOWTO (156), 595 EMPTY_HOWTO (157), 596 EMPTY_HOWTO (158), 597 EMPTY_HOWTO (159), 598 599 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have 600 any dynamic linking support for 64-bit SH at present. */ 601 602 EMPTY_HOWTO (160), 603 EMPTY_HOWTO (161), 604 EMPTY_HOWTO (162), 605 EMPTY_HOWTO (163), 606 EMPTY_HOWTO (164), 607 EMPTY_HOWTO (165), 608 EMPTY_HOWTO (166), 609 EMPTY_HOWTO (167), 610 EMPTY_HOWTO (168), 611 612 /* Back to SH5 relocations. */ 613 /* Used in MOVI and SHORI (x & 65536). */ 614 HOWTO (R_SH_GOT_LOW16, /* type */ 615 0, /* rightshift */ 616 2, /* size (0 = byte, 1 = short, 2 = long) */ 617 64, /* bitsize */ 618 FALSE, /* pc_relative */ 619 10, /* bitpos */ 620 complain_overflow_dont, /* complain_on_overflow */ 621 bfd_elf_generic_reloc, /* special_function */ 622 "R_SH_GOT_LOW16", /* name */ 623 FALSE, /* partial_inplace */ 624 0, /* src_mask */ 625 0x3fffc00, /* dst_mask */ 626 FALSE), /* pcrel_offset */ 627 628 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 629 HOWTO (R_SH_GOT_MEDLOW16, /* type */ 630 16, /* rightshift */ 631 2, /* size (0 = byte, 1 = short, 2 = long) */ 632 64, /* bitsize */ 633 FALSE, /* pc_relative */ 634 10, /* bitpos */ 635 complain_overflow_dont, /* complain_on_overflow */ 636 bfd_elf_generic_reloc, /* special_function */ 637 "R_SH_GOT_MEDLOW16", /* name */ 638 FALSE, /* partial_inplace */ 639 0, /* src_mask */ 640 0x3fffc00, /* dst_mask */ 641 FALSE), /* pcrel_offset */ 642 643 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 644 HOWTO (R_SH_GOT_MEDHI16, /* type */ 645 32, /* rightshift */ 646 2, /* size (0 = byte, 1 = short, 2 = long) */ 647 64, /* bitsize */ 648 FALSE, /* pc_relative */ 649 10, /* bitpos */ 650 complain_overflow_dont, /* complain_on_overflow */ 651 bfd_elf_generic_reloc, /* special_function */ 652 "R_SH_GOT_MEDHI16", /* name */ 653 FALSE, /* partial_inplace */ 654 0, /* src_mask */ 655 0x3fffc00, /* dst_mask */ 656 FALSE), /* pcrel_offset */ 657 658 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 659 HOWTO (R_SH_GOT_HI16, /* type */ 660 48, /* rightshift */ 661 2, /* size (0 = byte, 1 = short, 2 = long) */ 662 64, /* bitsize */ 663 FALSE, /* pc_relative */ 664 10, /* bitpos */ 665 complain_overflow_dont, /* complain_on_overflow */ 666 bfd_elf_generic_reloc, /* special_function */ 667 "R_SH_GOT_HI16", /* name */ 668 FALSE, /* partial_inplace */ 669 0, /* src_mask */ 670 0x3fffc00, /* dst_mask */ 671 FALSE), /* pcrel_offset */ 672 673 /* Used in MOVI and SHORI (x & 65536). */ 674 HOWTO (R_SH_GOTPLT_LOW16, /* type */ 675 0, /* rightshift */ 676 2, /* size (0 = byte, 1 = short, 2 = long) */ 677 64, /* bitsize */ 678 FALSE, /* pc_relative */ 679 10, /* bitpos */ 680 complain_overflow_dont, /* complain_on_overflow */ 681 bfd_elf_generic_reloc, /* special_function */ 682 "R_SH_GOTPLT_LOW16", /* name */ 683 FALSE, /* partial_inplace */ 684 0, /* src_mask */ 685 0x3fffc00, /* dst_mask */ 686 FALSE), /* pcrel_offset */ 687 688 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 689 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */ 690 16, /* rightshift */ 691 2, /* size (0 = byte, 1 = short, 2 = long) */ 692 64, /* bitsize */ 693 FALSE, /* pc_relative */ 694 10, /* bitpos */ 695 complain_overflow_dont, /* complain_on_overflow */ 696 bfd_elf_generic_reloc, /* special_function */ 697 "R_SH_GOTPLT_MEDLOW16", /* name */ 698 FALSE, /* partial_inplace */ 699 0, /* src_mask */ 700 0x3fffc00, /* dst_mask */ 701 FALSE), /* pcrel_offset */ 702 703 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 704 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */ 705 32, /* rightshift */ 706 2, /* size (0 = byte, 1 = short, 2 = long) */ 707 64, /* bitsize */ 708 FALSE, /* pc_relative */ 709 10, /* bitpos */ 710 complain_overflow_dont, /* complain_on_overflow */ 711 bfd_elf_generic_reloc, /* special_function */ 712 "R_SH_GOTPLT_MEDHI16", /* name */ 713 FALSE, /* partial_inplace */ 714 0, /* src_mask */ 715 0x3fffc00, /* dst_mask */ 716 FALSE), /* pcrel_offset */ 717 718 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 719 HOWTO (R_SH_GOTPLT_HI16, /* type */ 720 48, /* rightshift */ 721 2, /* size (0 = byte, 1 = short, 2 = long) */ 722 64, /* bitsize */ 723 FALSE, /* pc_relative */ 724 10, /* bitpos */ 725 complain_overflow_dont, /* complain_on_overflow */ 726 bfd_elf_generic_reloc, /* special_function */ 727 "R_SH_GOTPLT_HI16", /* name */ 728 FALSE, /* partial_inplace */ 729 0, /* src_mask */ 730 0x3fffc00, /* dst_mask */ 731 FALSE), /* pcrel_offset */ 732 733 /* Used in MOVI and SHORI (x & 65536). */ 734 HOWTO (R_SH_PLT_LOW16, /* type */ 735 0, /* rightshift */ 736 2, /* size (0 = byte, 1 = short, 2 = long) */ 737 64, /* bitsize */ 738 TRUE, /* pc_relative */ 739 10, /* bitpos */ 740 complain_overflow_dont, /* complain_on_overflow */ 741 bfd_elf_generic_reloc, /* special_function */ 742 "R_SH_PLT_LOW16", /* name */ 743 FALSE, /* partial_inplace */ 744 0, /* src_mask */ 745 0x3fffc00, /* dst_mask */ 746 TRUE), /* pcrel_offset */ 747 748 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 749 HOWTO (R_SH_PLT_MEDLOW16, /* type */ 750 16, /* rightshift */ 751 2, /* size (0 = byte, 1 = short, 2 = long) */ 752 64, /* bitsize */ 753 TRUE, /* pc_relative */ 754 10, /* bitpos */ 755 complain_overflow_dont, /* complain_on_overflow */ 756 bfd_elf_generic_reloc, /* special_function */ 757 "R_SH_PLT_MEDLOW16", /* name */ 758 FALSE, /* partial_inplace */ 759 0, /* src_mask */ 760 0x3fffc00, /* dst_mask */ 761 TRUE), /* pcrel_offset */ 762 763 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 764 HOWTO (R_SH_PLT_MEDHI16, /* type */ 765 32, /* rightshift */ 766 2, /* size (0 = byte, 1 = short, 2 = long) */ 767 64, /* bitsize */ 768 TRUE, /* pc_relative */ 769 10, /* bitpos */ 770 complain_overflow_dont, /* complain_on_overflow */ 771 bfd_elf_generic_reloc, /* special_function */ 772 "R_SH_PLT_MEDHI16", /* name */ 773 FALSE, /* partial_inplace */ 774 0, /* src_mask */ 775 0x3fffc00, /* dst_mask */ 776 TRUE), /* pcrel_offset */ 777 778 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 779 HOWTO (R_SH_PLT_HI16, /* type */ 780 48, /* rightshift */ 781 2, /* size (0 = byte, 1 = short, 2 = long) */ 782 64, /* bitsize */ 783 TRUE, /* pc_relative */ 784 10, /* bitpos */ 785 complain_overflow_dont, /* complain_on_overflow */ 786 bfd_elf_generic_reloc, /* special_function */ 787 "R_SH_PLT_HI16", /* name */ 788 FALSE, /* partial_inplace */ 789 0, /* src_mask */ 790 0x3fffc00, /* dst_mask */ 791 TRUE), /* pcrel_offset */ 792 793 /* Used in MOVI and SHORI (x & 65536). */ 794 HOWTO (R_SH_GOTOFF_LOW16, /* type */ 795 0, /* rightshift */ 796 2, /* size (0 = byte, 1 = short, 2 = long) */ 797 64, /* bitsize */ 798 FALSE, /* pc_relative */ 799 10, /* bitpos */ 800 complain_overflow_dont, /* complain_on_overflow */ 801 bfd_elf_generic_reloc, /* special_function */ 802 "R_SH_GOTOFF_LOW16", /* name */ 803 FALSE, /* partial_inplace */ 804 0, /* src_mask */ 805 0x3fffc00, /* dst_mask */ 806 FALSE), /* pcrel_offset */ 807 808 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 809 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */ 810 16, /* rightshift */ 811 2, /* size (0 = byte, 1 = short, 2 = long) */ 812 64, /* bitsize */ 813 FALSE, /* pc_relative */ 814 10, /* bitpos */ 815 complain_overflow_dont, /* complain_on_overflow */ 816 bfd_elf_generic_reloc, /* special_function */ 817 "R_SH_GOTOFF_MEDLOW16", /* name */ 818 FALSE, /* partial_inplace */ 819 0, /* src_mask */ 820 0x3fffc00, /* dst_mask */ 821 FALSE), /* pcrel_offset */ 822 823 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 824 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */ 825 32, /* rightshift */ 826 2, /* size (0 = byte, 1 = short, 2 = long) */ 827 64, /* bitsize */ 828 FALSE, /* pc_relative */ 829 10, /* bitpos */ 830 complain_overflow_dont, /* complain_on_overflow */ 831 bfd_elf_generic_reloc, /* special_function */ 832 "R_SH_GOTOFF_MEDHI16", /* name */ 833 FALSE, /* partial_inplace */ 834 0, /* src_mask */ 835 0x3fffc00, /* dst_mask */ 836 FALSE), /* pcrel_offset */ 837 838 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 839 HOWTO (R_SH_GOTOFF_HI16, /* type */ 840 48, /* rightshift */ 841 2, /* size (0 = byte, 1 = short, 2 = long) */ 842 64, /* bitsize */ 843 FALSE, /* pc_relative */ 844 10, /* bitpos */ 845 complain_overflow_dont, /* complain_on_overflow */ 846 bfd_elf_generic_reloc, /* special_function */ 847 "R_SH_GOTOFF_HI16", /* name */ 848 FALSE, /* partial_inplace */ 849 0, /* src_mask */ 850 0x3fffc00, /* dst_mask */ 851 FALSE), /* pcrel_offset */ 852 853 /* Used in MOVI and SHORI (x & 65536). */ 854 HOWTO (R_SH_GOTPC_LOW16, /* type */ 855 0, /* rightshift */ 856 2, /* size (0 = byte, 1 = short, 2 = long) */ 857 64, /* bitsize */ 858 TRUE, /* pc_relative */ 859 10, /* bitpos */ 860 complain_overflow_dont, /* complain_on_overflow */ 861 bfd_elf_generic_reloc, /* special_function */ 862 "R_SH_GOTPC_LOW16", /* name */ 863 FALSE, /* partial_inplace */ 864 0, /* src_mask */ 865 0x3fffc00, /* dst_mask */ 866 TRUE), /* pcrel_offset */ 867 868 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 869 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */ 870 16, /* rightshift */ 871 2, /* size (0 = byte, 1 = short, 2 = long) */ 872 64, /* bitsize */ 873 TRUE, /* pc_relative */ 874 10, /* bitpos */ 875 complain_overflow_dont, /* complain_on_overflow */ 876 bfd_elf_generic_reloc, /* special_function */ 877 "R_SH_GOTPC_MEDLOW16", /* name */ 878 FALSE, /* partial_inplace */ 879 0, /* src_mask */ 880 0x3fffc00, /* dst_mask */ 881 TRUE), /* pcrel_offset */ 882 883 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 884 HOWTO (R_SH_GOTPC_MEDHI16, /* type */ 885 32, /* rightshift */ 886 2, /* size (0 = byte, 1 = short, 2 = long) */ 887 64, /* bitsize */ 888 TRUE, /* pc_relative */ 889 10, /* bitpos */ 890 complain_overflow_dont, /* complain_on_overflow */ 891 bfd_elf_generic_reloc, /* special_function */ 892 "R_SH_GOTPC_MEDHI16", /* name */ 893 FALSE, /* partial_inplace */ 894 0, /* src_mask */ 895 0x3fffc00, /* dst_mask */ 896 TRUE), /* pcrel_offset */ 897 898 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 899 HOWTO (R_SH_GOTPC_HI16, /* type */ 900 48, /* rightshift */ 901 2, /* size (0 = byte, 1 = short, 2 = long) */ 902 64, /* bitsize */ 903 TRUE, /* pc_relative */ 904 10, /* bitpos */ 905 complain_overflow_dont, /* complain_on_overflow */ 906 bfd_elf_generic_reloc, /* special_function */ 907 "R_SH_GOTPC_HI16", /* name */ 908 FALSE, /* partial_inplace */ 909 0, /* src_mask */ 910 0x3fffc00, /* dst_mask */ 911 TRUE), /* pcrel_offset */ 912 913 /* Used in LD.L, FLD.S et al. */ 914 HOWTO (R_SH_GOT10BY4, /* type */ 915 2, /* rightshift */ 916 2, /* size (0 = byte, 1 = short, 2 = long) */ 917 12, /* bitsize */ 918 FALSE, /* pc_relative */ 919 10, /* bitpos */ 920 complain_overflow_signed, /* complain_on_overflow */ 921 bfd_elf_generic_reloc, /* special_function */ 922 "R_SH_GOT10BY4", /* name */ 923 FALSE, /* partial_inplace */ 924 0, /* src_mask */ 925 0xffc00, /* dst_mask */ 926 FALSE), /* pcrel_offset */ 927 928 /* Used in LD.L, FLD.S et al. */ 929 HOWTO (R_SH_GOTPLT10BY4, /* type */ 930 2, /* rightshift */ 931 2, /* size (0 = byte, 1 = short, 2 = long) */ 932 12, /* bitsize */ 933 FALSE, /* pc_relative */ 934 10, /* bitpos */ 935 complain_overflow_signed, /* complain_on_overflow */ 936 bfd_elf_generic_reloc, /* special_function */ 937 "R_SH_GOTPLT10BY4", /* name */ 938 FALSE, /* partial_inplace */ 939 0, /* src_mask */ 940 0xffc00, /* dst_mask */ 941 FALSE), /* pcrel_offset */ 942 943 /* Used in FLD.D, FST.P et al. */ 944 HOWTO (R_SH_GOT10BY8, /* type */ 945 3, /* rightshift */ 946 2, /* size (0 = byte, 1 = short, 2 = long) */ 947 13, /* bitsize */ 948 FALSE, /* pc_relative */ 949 10, /* bitpos */ 950 complain_overflow_signed, /* complain_on_overflow */ 951 bfd_elf_generic_reloc, /* special_function */ 952 "R_SH_GOT10BY8", /* name */ 953 FALSE, /* partial_inplace */ 954 0, /* src_mask */ 955 0xffc00, /* dst_mask */ 956 FALSE), /* pcrel_offset */ 957 958 /* Used in FLD.D, FST.P et al. */ 959 HOWTO (R_SH_GOTPLT10BY8, /* type */ 960 3, /* rightshift */ 961 2, /* size (0 = byte, 1 = short, 2 = long) */ 962 13, /* bitsize */ 963 FALSE, /* pc_relative */ 964 10, /* bitpos */ 965 complain_overflow_signed, /* complain_on_overflow */ 966 bfd_elf_generic_reloc, /* special_function */ 967 "R_SH_GOTPLT10BY8", /* name */ 968 FALSE, /* partial_inplace */ 969 0, /* src_mask */ 970 0xffc00, /* dst_mask */ 971 FALSE), /* pcrel_offset */ 972 973 HOWTO (R_SH_COPY64, /* type */ 974 0, /* rightshift */ 975 4, /* size (0 = byte, 1 = short, 2 = long) */ 976 64, /* bitsize */ 977 FALSE, /* pc_relative */ 978 0, /* bitpos */ 979 complain_overflow_dont, /* complain_on_overflow */ 980 bfd_elf_generic_reloc, /* special_function */ 981 "R_SH_COPY64", /* name */ 982 FALSE, /* partial_inplace */ 983 0, /* src_mask */ 984 ((bfd_vma) 0) - 1, /* dst_mask */ 985 FALSE), /* pcrel_offset */ 986 987 HOWTO (R_SH_GLOB_DAT64, /* type */ 988 0, /* rightshift */ 989 4, /* size (0 = byte, 1 = short, 2 = long) */ 990 64, /* bitsize */ 991 FALSE, /* pc_relative */ 992 0, /* bitpos */ 993 complain_overflow_dont, /* complain_on_overflow */ 994 bfd_elf_generic_reloc, /* special_function */ 995 "R_SH_GLOB_DAT64", /* name */ 996 FALSE, /* partial_inplace */ 997 0, /* src_mask */ 998 ((bfd_vma) 0) - 1, /* dst_mask */ 999 FALSE), /* pcrel_offset */ 1000 1001 HOWTO (R_SH_JMP_SLOT64, /* type */ 1002 0, /* rightshift */ 1003 4, /* size (0 = byte, 1 = short, 2 = long) */ 1004 64, /* bitsize */ 1005 FALSE, /* pc_relative */ 1006 0, /* bitpos */ 1007 complain_overflow_dont, /* complain_on_overflow */ 1008 bfd_elf_generic_reloc, /* special_function */ 1009 "R_SH_JMP_SLOT64", /* name */ 1010 FALSE, /* partial_inplace */ 1011 0, /* src_mask */ 1012 ((bfd_vma) 0) - 1, /* dst_mask */ 1013 FALSE), /* pcrel_offset */ 1014 1015 HOWTO (R_SH_RELATIVE64, /* type */ 1016 0, /* rightshift */ 1017 4, /* size (0 = byte, 1 = short, 2 = long) */ 1018 64, /* bitsize */ 1019 FALSE, /* pc_relative */ 1020 0, /* bitpos */ 1021 complain_overflow_dont, /* complain_on_overflow */ 1022 bfd_elf_generic_reloc, /* special_function */ 1023 "R_SH_RELATIVE64", /* name */ 1024 FALSE, /* partial_inplace */ 1025 0, /* src_mask */ 1026 ((bfd_vma) 0) - 1, /* dst_mask */ 1027 FALSE), /* pcrel_offset */ 1028 1029 EMPTY_HOWTO (197), 1030 EMPTY_HOWTO (198), 1031 EMPTY_HOWTO (199), 1032 EMPTY_HOWTO (200), 1033 EMPTY_HOWTO (201), 1034 EMPTY_HOWTO (202), 1035 EMPTY_HOWTO (203), 1036 EMPTY_HOWTO (204), 1037 EMPTY_HOWTO (205), 1038 EMPTY_HOWTO (206), 1039 EMPTY_HOWTO (207), 1040 EMPTY_HOWTO (208), 1041 EMPTY_HOWTO (209), 1042 EMPTY_HOWTO (210), 1043 EMPTY_HOWTO (211), 1044 EMPTY_HOWTO (212), 1045 EMPTY_HOWTO (213), 1046 EMPTY_HOWTO (214), 1047 EMPTY_HOWTO (215), 1048 EMPTY_HOWTO (216), 1049 EMPTY_HOWTO (217), 1050 EMPTY_HOWTO (218), 1051 EMPTY_HOWTO (219), 1052 EMPTY_HOWTO (220), 1053 EMPTY_HOWTO (221), 1054 EMPTY_HOWTO (222), 1055 EMPTY_HOWTO (223), 1056 EMPTY_HOWTO (224), 1057 EMPTY_HOWTO (225), 1058 EMPTY_HOWTO (226), 1059 EMPTY_HOWTO (227), 1060 EMPTY_HOWTO (228), 1061 EMPTY_HOWTO (229), 1062 EMPTY_HOWTO (230), 1063 EMPTY_HOWTO (231), 1064 EMPTY_HOWTO (232), 1065 EMPTY_HOWTO (233), 1066 EMPTY_HOWTO (234), 1067 EMPTY_HOWTO (235), 1068 EMPTY_HOWTO (236), 1069 EMPTY_HOWTO (237), 1070 EMPTY_HOWTO (238), 1071 EMPTY_HOWTO (239), 1072 EMPTY_HOWTO (240), 1073 EMPTY_HOWTO (241), 1074 1075 /* Relocations for SHmedia code. None of these are partial_inplace or 1076 use the field being relocated. */ 1077 1078 /* The assembler will generate this reloc before a block of SHmedia 1079 instructions. A section should be processed as assuming it contains 1080 data, unless this reloc is seen. Note that a block of SHcompact 1081 instructions are instead preceded by R_SH_CODE. 1082 This is currently not implemented, but should be used for SHmedia 1083 linker relaxation. */ 1084 HOWTO (R_SH_SHMEDIA_CODE, /* type */ 1085 0, /* rightshift */ 1086 1, /* size (0 = byte, 1 = short, 2 = long) */ 1087 0, /* bitsize */ 1088 FALSE, /* pc_relative */ 1089 0, /* bitpos */ 1090 complain_overflow_unsigned, /* complain_on_overflow */ 1091 sh_elf64_ignore_reloc, /* special_function */ 1092 "R_SH_SHMEDIA_CODE", /* name */ 1093 FALSE, /* partial_inplace */ 1094 0, /* src_mask */ 1095 0, /* dst_mask */ 1096 FALSE), /* pcrel_offset */ 1097 1098 /* The assembler will generate this reloc at a PTA or PTB instruction, 1099 and the linker checks the right type of target, or changes a PTA to a 1100 PTB, if the original insn was PT. */ 1101 HOWTO (R_SH_PT_16, /* type */ 1102 2, /* rightshift */ 1103 2, /* size (0 = byte, 1 = short, 2 = long) */ 1104 18, /* bitsize */ 1105 TRUE, /* pc_relative */ 1106 10, /* bitpos */ 1107 complain_overflow_signed, /* complain_on_overflow */ 1108 bfd_elf_generic_reloc, /* special_function */ 1109 "R_SH_PT_16", /* name */ 1110 FALSE, /* partial_inplace */ 1111 0, /* src_mask */ 1112 0x3fffc00, /* dst_mask */ 1113 TRUE), /* pcrel_offset */ 1114 1115 /* Used in unexpanded MOVI. */ 1116 HOWTO (R_SH_IMMS16, /* type */ 1117 0, /* rightshift */ 1118 2, /* size (0 = byte, 1 = short, 2 = long) */ 1119 16, /* bitsize */ 1120 FALSE, /* pc_relative */ 1121 10, /* bitpos */ 1122 complain_overflow_signed, /* complain_on_overflow */ 1123 bfd_elf_generic_reloc, /* special_function */ 1124 "R_SH_IMMS16", /* name */ 1125 FALSE, /* partial_inplace */ 1126 0, /* src_mask */ 1127 0x3fffc00, /* dst_mask */ 1128 FALSE), /* pcrel_offset */ 1129 1130 /* Used in SHORI. */ 1131 HOWTO (R_SH_IMMU16, /* type */ 1132 0, /* rightshift */ 1133 2, /* size (0 = byte, 1 = short, 2 = long) */ 1134 16, /* bitsize */ 1135 FALSE, /* pc_relative */ 1136 10, /* bitpos */ 1137 complain_overflow_unsigned, /* complain_on_overflow */ 1138 bfd_elf_generic_reloc, /* special_function */ 1139 "R_SH_IMMU16", /* name */ 1140 FALSE, /* partial_inplace */ 1141 0, /* src_mask */ 1142 0x3fffc00, /* dst_mask */ 1143 FALSE), /* pcrel_offset */ 1144 1145 /* Used in MOVI and SHORI (x & 65536). */ 1146 HOWTO (R_SH_IMM_LOW16, /* type */ 1147 0, /* rightshift */ 1148 2, /* size (0 = byte, 1 = short, 2 = long) */ 1149 64, /* bitsize */ 1150 FALSE, /* pc_relative */ 1151 10, /* bitpos */ 1152 complain_overflow_dont, /* complain_on_overflow */ 1153 bfd_elf_generic_reloc, /* special_function */ 1154 "R_SH_IMM_LOW16", /* name */ 1155 FALSE, /* partial_inplace */ 1156 0, /* src_mask */ 1157 0x3fffc00, /* dst_mask */ 1158 FALSE), /* pcrel_offset */ 1159 1160 /* Used in MOVI and SHORI ((x - $) & 65536). */ 1161 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */ 1162 0, /* rightshift */ 1163 2, /* size (0 = byte, 1 = short, 2 = long) */ 1164 64, /* bitsize */ 1165 TRUE, /* pc_relative */ 1166 10, /* bitpos */ 1167 complain_overflow_dont, /* complain_on_overflow */ 1168 bfd_elf_generic_reloc, /* special_function */ 1169 "R_SH_IMM_LOW16_PCREL", /* name */ 1170 FALSE, /* partial_inplace */ 1171 0, /* src_mask */ 1172 0x3fffc00, /* dst_mask */ 1173 TRUE), /* pcrel_offset */ 1174 1175 /* Used in MOVI and SHORI ((x >> 16) & 65536). */ 1176 HOWTO (R_SH_IMM_MEDLOW16, /* type */ 1177 16, /* rightshift */ 1178 2, /* size (0 = byte, 1 = short, 2 = long) */ 1179 64, /* bitsize */ 1180 FALSE, /* pc_relative */ 1181 10, /* bitpos */ 1182 complain_overflow_dont, /* complain_on_overflow */ 1183 bfd_elf_generic_reloc, /* special_function */ 1184 "R_SH_IMM_MEDLOW16", /* name */ 1185 FALSE, /* partial_inplace */ 1186 0, /* src_mask */ 1187 0x3fffc00, /* dst_mask */ 1188 FALSE), /* pcrel_offset */ 1189 1190 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */ 1191 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */ 1192 16, /* rightshift */ 1193 2, /* size (0 = byte, 1 = short, 2 = long) */ 1194 64, /* bitsize */ 1195 TRUE, /* pc_relative */ 1196 10, /* bitpos */ 1197 complain_overflow_dont, /* complain_on_overflow */ 1198 bfd_elf_generic_reloc, /* special_function */ 1199 "R_SH_IMM_MEDLOW16_PCREL", /* name */ 1200 FALSE, /* partial_inplace */ 1201 0, /* src_mask */ 1202 0x3fffc00, /* dst_mask */ 1203 TRUE), /* pcrel_offset */ 1204 1205 /* Used in MOVI and SHORI ((x >> 32) & 65536). */ 1206 HOWTO (R_SH_IMM_MEDHI16, /* type */ 1207 32, /* rightshift */ 1208 2, /* size (0 = byte, 1 = short, 2 = long) */ 1209 64, /* bitsize */ 1210 FALSE, /* pc_relative */ 1211 10, /* bitpos */ 1212 complain_overflow_dont, /* complain_on_overflow */ 1213 bfd_elf_generic_reloc, /* special_function */ 1214 "R_SH_IMM_MEDHI16", /* name */ 1215 FALSE, /* partial_inplace */ 1216 0, /* src_mask */ 1217 0x3fffc00, /* dst_mask */ 1218 FALSE), /* pcrel_offset */ 1219 1220 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */ 1221 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */ 1222 32, /* rightshift */ 1223 2, /* size (0 = byte, 1 = short, 2 = long) */ 1224 64, /* bitsize */ 1225 TRUE, /* pc_relative */ 1226 10, /* bitpos */ 1227 complain_overflow_dont, /* complain_on_overflow */ 1228 bfd_elf_generic_reloc, /* special_function */ 1229 "R_SH_IMM_MEDHI16_PCREL", /* name */ 1230 FALSE, /* partial_inplace */ 1231 0, /* src_mask */ 1232 0x3fffc00, /* dst_mask */ 1233 TRUE), /* pcrel_offset */ 1234 1235 /* Used in MOVI and SHORI ((x >> 48) & 65536). */ 1236 HOWTO (R_SH_IMM_HI16, /* type */ 1237 48, /* rightshift */ 1238 2, /* size (0 = byte, 1 = short, 2 = long) */ 1239 64, /* bitsize */ 1240 FALSE, /* pc_relative */ 1241 10, /* bitpos */ 1242 complain_overflow_dont, /* complain_on_overflow */ 1243 bfd_elf_generic_reloc, /* special_function */ 1244 "R_SH_IMM_HI16", /* name */ 1245 FALSE, /* partial_inplace */ 1246 0, /* src_mask */ 1247 0x3fffc00, /* dst_mask */ 1248 FALSE), /* pcrel_offset */ 1249 1250 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */ 1251 HOWTO (R_SH_IMM_HI16_PCREL, /* type */ 1252 48, /* rightshift */ 1253 2, /* size (0 = byte, 1 = short, 2 = long) */ 1254 64, /* bitsize */ 1255 TRUE, /* pc_relative */ 1256 10, /* bitpos */ 1257 complain_overflow_dont, /* complain_on_overflow */ 1258 bfd_elf_generic_reloc, /* special_function */ 1259 "R_SH_IMM_HI16_PCREL", /* name */ 1260 FALSE, /* partial_inplace */ 1261 0, /* src_mask */ 1262 0x3fffc00, /* dst_mask */ 1263 TRUE), /* pcrel_offset */ 1264 1265 /* For the .uaquad pseudo. */ 1266 HOWTO (R_SH_64, /* type */ 1267 0, /* rightshift */ 1268 4, /* size (0 = byte, 1 = short, 2 = long) */ 1269 64, /* bitsize */ 1270 FALSE, /* pc_relative */ 1271 0, /* bitpos */ 1272 complain_overflow_dont, /* complain_on_overflow */ 1273 bfd_elf_generic_reloc, /* special_function */ 1274 "R_SH_64", /* name */ 1275 FALSE, /* partial_inplace */ 1276 0, /* src_mask */ 1277 ((bfd_vma) 0) - 1, /* dst_mask */ 1278 FALSE), /* pcrel_offset */ 1279 1280 /* For the .uaquad pseudo, (x - $). */ 1281 HOWTO (R_SH_64_PCREL, /* type */ 1282 48, /* rightshift */ 1283 2, /* size (0 = byte, 1 = short, 2 = long) */ 1284 64, /* bitsize */ 1285 TRUE, /* pc_relative */ 1286 10, /* bitpos */ 1287 complain_overflow_dont, /* complain_on_overflow */ 1288 bfd_elf_generic_reloc, /* special_function */ 1289 "R_SH_64_PCREL", /* name */ 1290 FALSE, /* partial_inplace */ 1291 0, /* src_mask */ 1292 ((bfd_vma) 0) - 1, /* dst_mask */ 1293 TRUE), /* pcrel_offset */ 1294 1295}; 1296 1297/* This function is used for relocs which are only used for relaxing, 1298 which the linker should otherwise ignore. */ 1299 1300static bfd_reloc_status_type 1301sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, 1302 asymbol *symbol ATTRIBUTE_UNUSED, 1303 void *data ATTRIBUTE_UNUSED, asection *input_section, 1304 bfd *output_bfd, 1305 char **error_message ATTRIBUTE_UNUSED) 1306{ 1307 if (output_bfd != NULL) 1308 reloc_entry->address += input_section->output_offset; 1309 return bfd_reloc_ok; 1310} 1311 1312/* This function is used for normal relocs. This used to be like the COFF 1313 function, and is almost certainly incorrect for other ELF targets. 1314 1315 See sh_elf_reloc in elf32-sh.c for the original. */ 1316 1317static bfd_reloc_status_type 1318sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in, 1319 void *data, asection *input_section, bfd *output_bfd, 1320 char **error_message ATTRIBUTE_UNUSED) 1321{ 1322 unsigned long insn; 1323 bfd_vma sym_value; 1324 enum elf_sh_reloc_type r_type; 1325 bfd_vma addr = reloc_entry->address; 1326 bfd_byte *hit_data = addr + (bfd_byte *) data; 1327 1328 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; 1329 1330 if (output_bfd != NULL) 1331 { 1332 /* Partial linking--do nothing. */ 1333 reloc_entry->address += input_section->output_offset; 1334 return bfd_reloc_ok; 1335 } 1336 1337 if (symbol_in != NULL 1338 && bfd_is_und_section (symbol_in->section)) 1339 return bfd_reloc_undefined; 1340 1341 if (bfd_is_com_section (symbol_in->section)) 1342 sym_value = 0; 1343 else 1344 sym_value = (symbol_in->value + 1345 symbol_in->section->output_section->vma + 1346 symbol_in->section->output_offset); 1347 1348 switch (r_type) 1349 { 1350 case R_SH_DIR32: 1351 insn = bfd_get_32 (abfd, hit_data); 1352 insn += sym_value + reloc_entry->addend; 1353 bfd_put_32 (abfd, insn, hit_data); 1354 break; 1355 1356 default: 1357 abort (); 1358 break; 1359 } 1360 1361 return bfd_reloc_ok; 1362} 1363 1364/* This structure is used to map BFD reloc codes to SH ELF relocs. */ 1365 1366struct elf_reloc_map 1367{ 1368 bfd_reloc_code_real_type bfd_reloc_val; 1369 unsigned char elf_reloc_val; 1370}; 1371 1372/* An array mapping BFD reloc codes to SH ELF relocs. */ 1373 1374static const struct elf_reloc_map sh64_reloc_map[] = 1375{ 1376 { BFD_RELOC_NONE, R_SH_NONE }, 1377 { BFD_RELOC_32, R_SH_DIR32 }, 1378 { BFD_RELOC_CTOR, R_SH_DIR32 }, 1379 { BFD_RELOC_32_PCREL, R_SH_REL32 }, 1380 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, 1381 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, 1382 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, 1383 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, 1384 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, 1385 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 }, 1386 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 }, 1387 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 }, 1388 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 }, 1389 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 }, 1390 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 }, 1391 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 }, 1392 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 }, 1393 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 }, 1394 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 }, 1395 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 }, 1396 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 }, 1397 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 }, 1398 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 }, 1399 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 }, 1400 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 }, 1401 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 }, 1402 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 }, 1403 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 }, 1404 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 }, 1405 { BFD_RELOC_SH_COPY64, R_SH_COPY64 }, 1406 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 }, 1407 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 }, 1408 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 }, 1409 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 }, 1410 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 }, 1411 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 }, 1412 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 }, 1413 { BFD_RELOC_SH_PT_16, R_SH_PT_16 }, 1414 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE }, 1415 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U }, 1416 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S }, 1417 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U }, 1418 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S }, 1419 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW }, 1420 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL }, 1421 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ }, 1422 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 }, 1423 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 }, 1424 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 }, 1425 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL }, 1426 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 }, 1427 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL }, 1428 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 }, 1429 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL }, 1430 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 }, 1431 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL }, 1432 { BFD_RELOC_64, R_SH_64 }, 1433 { BFD_RELOC_64_PCREL, R_SH_64_PCREL }, 1434}; 1435 1436/* Given a BFD reloc code, return the howto structure for the 1437 corresponding SH ELf reloc. */ 1438 1439static reloc_howto_type * 1440sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1441 bfd_reloc_code_real_type code) 1442{ 1443 unsigned int i; 1444 1445 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++) 1446 { 1447 if (sh64_reloc_map[i].bfd_reloc_val == code) 1448 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val]; 1449 } 1450 1451 return NULL; 1452} 1453 1454/* Given an ELF reloc, fill in the howto field of a relent. 1455 1456 See sh_elf_info_to_howto in elf32-sh.c for the original. */ 1457 1458static void 1459sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, 1460 Elf_Internal_Rela *dst) 1461{ 1462 unsigned int r; 1463 1464 r = ELF64_R_TYPE (dst->r_info); 1465 1466 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL); 1467 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC); 1468 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2); 1469 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32); 1470 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4); 1471 1472 cache_ptr->howto = &sh_elf64_howto_table[r]; 1473} 1474 1475/* Relocate an SH ELF section. 1476 1477 See sh_elf_info_to_howto in elf32-sh.c for the original. */ 1478 1479static bfd_boolean 1480sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, 1481 struct bfd_link_info *info, bfd *input_bfd, 1482 asection *input_section, bfd_byte *contents, 1483 Elf_Internal_Rela *relocs, 1484 Elf_Internal_Sym *local_syms, 1485 asection **local_sections) 1486{ 1487 Elf_Internal_Shdr *symtab_hdr; 1488 struct elf_link_hash_entry **sym_hashes; 1489 Elf_Internal_Rela *rel, *relend; 1490 bfd *dynobj; 1491 bfd_vma *local_got_offsets; 1492 asection *sgot; 1493 asection *sgotplt; 1494 asection *splt; 1495 asection *sreloc; 1496 bfd_vma disp, dropped; 1497 1498 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 1499 sym_hashes = elf_sym_hashes (input_bfd); 1500 dynobj = elf_hash_table (info)->dynobj; 1501 local_got_offsets = elf_local_got_offsets (input_bfd); 1502 1503 sgot = NULL; 1504 sgotplt = NULL; 1505 splt = NULL; 1506 sreloc = NULL; 1507 1508 rel = relocs; 1509 relend = relocs + input_section->reloc_count; 1510 for (; rel < relend; rel++) 1511 { 1512 int r_type; 1513 reloc_howto_type *howto; 1514 unsigned long r_symndx; 1515 Elf_Internal_Sym *sym; 1516 asection *sec; 1517 struct elf_link_hash_entry *h; 1518 bfd_vma relocation; 1519 bfd_vma addend = (bfd_vma)0; 1520 bfd_reloc_status_type r; 1521 int seen_stt_datalabel = 0; 1522 1523 r_symndx = ELF64_R_SYM (rel->r_info); 1524 1525 r_type = ELF64_R_TYPE (rel->r_info); 1526 1527 if (r_type == (int) R_SH_NONE) 1528 continue; 1529 1530 if (r_type < 0 1531 || r_type > R_SH_64_PCREL 1532 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC 1533 && r_type <= (int) R_SH_LAST_INVALID_RELOC) 1534 || (r_type >= (int) R_SH_DIR8WPN 1535 && r_type <= (int) R_SH_LAST_INVALID_RELOC) 1536 || (r_type >= (int) R_SH_GNU_VTINHERIT 1537 && r_type <= (int) R_SH_PSHL) 1538 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2 1539 && r_type <= R_SH_GOTPLT32) 1540 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 1541 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)) 1542 { 1543 bfd_set_error (bfd_error_bad_value); 1544 return FALSE; 1545 } 1546 1547 howto = sh_elf64_howto_table + r_type; 1548 1549 /* This is a final link. */ 1550 h = NULL; 1551 sym = NULL; 1552 sec = NULL; 1553 if (r_symndx < symtab_hdr->sh_info) 1554 { 1555 sym = local_syms + r_symndx; 1556 sec = local_sections[r_symndx]; 1557 relocation = ((sec->output_section->vma 1558 + sec->output_offset 1559 + sym->st_value) 1560 | ((sym->st_other & STO_SH5_ISA32) != 0)); 1561 1562 /* A local symbol never has STO_SH5_ISA32, so we don't need 1563 datalabel processing here. Make sure this does not change 1564 without notice. */ 1565 if ((sym->st_other & STO_SH5_ISA32) != 0) 1566 ((*info->callbacks->reloc_dangerous) 1567 (info, 1568 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"), 1569 input_bfd, input_section, rel->r_offset)); 1570 1571 if (info->relocatable) 1572 { 1573 /* This is a relocatable link. We don't have to change 1574 anything, unless the reloc is against a section symbol, 1575 in which case we have to adjust according to where the 1576 section symbol winds up in the output section. */ 1577 sym = local_syms + r_symndx; 1578 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) 1579 goto final_link_relocate; 1580 1581 continue; 1582 } 1583 else if (! howto->partial_inplace) 1584 { 1585 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); 1586 relocation |= ((sym->st_other & STO_SH5_ISA32) != 0); 1587 } 1588 else if ((sec->flags & SEC_MERGE) 1589 && ELF_ST_TYPE (sym->st_info) == STT_SECTION) 1590 { 1591 asection *msec; 1592 1593 if (howto->rightshift || howto->src_mask != 0xffffffff) 1594 { 1595 (*_bfd_error_handler) 1596 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), 1597 input_bfd, input_section, 1598 (long) rel->r_offset, howto->name); 1599 return FALSE; 1600 } 1601 1602 addend = bfd_get_32 (input_bfd, contents + rel->r_offset); 1603 msec = sec; 1604 addend = 1605 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) 1606 - relocation; 1607 addend += msec->output_section->vma + msec->output_offset; 1608 bfd_put_32 (input_bfd, addend, contents + rel->r_offset); 1609 addend = 0; 1610 } 1611 } 1612 else 1613 { 1614 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */ 1615 1616 /* Section symbols are never (?) placed in the hash table, so 1617 we can just ignore hash relocations when creating a 1618 relocatable object file. */ 1619 if (info->relocatable) 1620 continue; 1621 1622 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 1623 while (h->root.type == bfd_link_hash_indirect 1624 || h->root.type == bfd_link_hash_warning) 1625 { 1626 /* If the reference passes a symbol marked with 1627 STT_DATALABEL, then any STO_SH5_ISA32 on the final value 1628 doesn't count. */ 1629 seen_stt_datalabel |= h->type == STT_DATALABEL; 1630 h = (struct elf_link_hash_entry *) h->root.u.i.link; 1631 } 1632 1633 if (h->root.type == bfd_link_hash_defined 1634 || h->root.type == bfd_link_hash_defweak) 1635 { 1636 sec = h->root.u.def.section; 1637 /* In these cases, we don't need the relocation value. 1638 We check specially because in some obscure cases 1639 sec->output_section will be NULL. */ 1640 if (r_type == R_SH_GOTPC_LOW16 1641 || r_type == R_SH_GOTPC_MEDLOW16 1642 || r_type == R_SH_GOTPC_MEDHI16 1643 || r_type == R_SH_GOTPC_HI16 1644 || ((r_type == R_SH_PLT_LOW16 1645 || r_type == R_SH_PLT_MEDLOW16 1646 || r_type == R_SH_PLT_MEDHI16 1647 || r_type == R_SH_PLT_HI16) 1648 && h->plt.offset != (bfd_vma) -1) 1649 || ((r_type == R_SH_GOT_LOW16 1650 || r_type == R_SH_GOT_MEDLOW16 1651 || r_type == R_SH_GOT_MEDHI16 1652 || r_type == R_SH_GOT_HI16) 1653 && elf_hash_table (info)->dynamic_sections_created 1654 && (! info->shared 1655 || (! info->symbolic && h->dynindx != -1) 1656 || !h->def_regular)) 1657 /* The cases above are those in which relocation is 1658 overwritten in the switch block below. The cases 1659 below are those in which we must defer relocation 1660 to run-time, because we can't resolve absolute 1661 addresses when creating a shared library. */ 1662 || (info->shared 1663 && ((! info->symbolic && h->dynindx != -1) 1664 || !h->def_regular) 1665 && ((r_type == R_SH_64 1666 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1667 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)) 1668 || r_type == R_SH_64_PCREL) 1669 && ((input_section->flags & SEC_ALLOC) != 0 1670 /* DWARF will emit R_SH_DIR32 relocations in its 1671 sections against symbols defined externally 1672 in shared libraries. We can't do anything 1673 with them here. */ 1674 || (input_section->flags & SEC_DEBUGGING) != 0)) 1675 /* Dynamic relocs are not propagated for SEC_DEBUGGING 1676 sections because such sections are not SEC_ALLOC and 1677 thus ld.so will not process them. */ 1678 || (sec->output_section == NULL 1679 && ((input_section->flags & SEC_DEBUGGING) != 0 1680 && h->def_dynamic))) 1681 relocation = 0; 1682 else if (sec->output_section == NULL) 1683 { 1684 (*_bfd_error_handler) 1685 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"), 1686 bfd_get_filename (input_bfd), h->root.root.string, 1687 bfd_get_section_name (input_bfd, input_section)); 1688 relocation = 0; 1689 } 1690 else 1691 relocation = ((h->root.u.def.value 1692 + sec->output_section->vma 1693 + sec->output_offset) 1694 /* A STO_SH5_ISA32 causes a "bitor 1" to the 1695 symbol value, unless we've seen 1696 STT_DATALABEL on the way to it. */ 1697 | ((h->other & STO_SH5_ISA32) != 0 1698 && ! seen_stt_datalabel)); 1699 } 1700 else if (h->root.type == bfd_link_hash_undefweak) 1701 relocation = 0; 1702 else if (info->unresolved_syms_in_objects == RM_IGNORE 1703 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) 1704 relocation = 0; 1705 else 1706 { 1707 if (! ((*info->callbacks->undefined_symbol) 1708 (info, h->root.root.string, input_bfd, 1709 input_section, rel->r_offset, 1710 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR 1711 || ELF_ST_VISIBILITY (h->other))))) 1712 return FALSE; 1713 relocation = 0; 1714 } 1715 } 1716 1717 disp = (relocation 1718 - input_section->output_section->vma 1719 - input_section->output_offset 1720 - rel->r_offset); 1721 dropped = 0; 1722 switch ((int)r_type) 1723 { 1724 case R_SH_PT_16: dropped = disp & 2; break; 1725 case R_SH_DIR10SW: dropped = disp & 1; break; 1726 case R_SH_DIR10SL: dropped = disp & 3; break; 1727 case R_SH_DIR10SQ: dropped = disp & 7; break; 1728 } 1729 if (dropped != 0) 1730 { 1731 (*_bfd_error_handler) 1732 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"), 1733 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation); 1734 bfd_set_error (bfd_error_bad_value); 1735 return FALSE; 1736 } 1737 switch ((int)r_type) 1738 { 1739 case R_SH_64: 1740 case R_SH_64_PCREL: 1741 if (info->shared 1742 && (input_section->flags & SEC_ALLOC) != 0 1743 && (r_type != R_SH_64_PCREL 1744 || (h != NULL 1745 && h->dynindx != -1 1746 && (! info->symbolic 1747 || !h->def_regular)))) 1748 { 1749 Elf_Internal_Rela outrel; 1750 bfd_byte *loc; 1751 bfd_boolean skip, relocate; 1752 1753 /* When generating a shared object, these relocations 1754 are copied into the output file to be resolved at run 1755 time. */ 1756 1757 if (sreloc == NULL) 1758 { 1759 const char *name; 1760 1761 name = (bfd_elf_string_from_elf_section 1762 (input_bfd, 1763 elf_elfheader (input_bfd)->e_shstrndx, 1764 elf_section_data (input_section)->rel_hdr.sh_name)); 1765 if (name == NULL) 1766 return FALSE; 1767 1768 BFD_ASSERT (strncmp (name, ".rela", 5) == 0 1769 && strcmp (bfd_get_section_name (input_bfd, 1770 input_section), 1771 name + 5) == 0); 1772 1773 sreloc = bfd_get_section_by_name (dynobj, name); 1774 BFD_ASSERT (sreloc != NULL); 1775 } 1776 1777 skip = FALSE; 1778 relocate = FALSE; 1779 1780 outrel.r_offset 1781 = _bfd_elf_section_offset (output_bfd, info, 1782 input_section, rel->r_offset); 1783 1784 if (outrel.r_offset == (bfd_vma) -1) 1785 skip = TRUE; 1786 else if (outrel.r_offset == (bfd_vma) -2) 1787 skip = TRUE, relocate = TRUE; 1788 1789 outrel.r_offset += (input_section->output_section->vma 1790 + input_section->output_offset); 1791 1792 if (skip) 1793 memset (&outrel, 0, sizeof outrel); 1794 else if (r_type == R_SH_64_PCREL) 1795 { 1796 BFD_ASSERT (h != NULL && h->dynindx != -1); 1797 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL); 1798 outrel.r_addend = rel->r_addend; 1799 } 1800 else 1801 { 1802 /* h->dynindx may be -1 if this symbol was marked to 1803 become local. */ 1804 if (h == NULL 1805 || ((info->symbolic || h->dynindx == -1) 1806 && h->def_regular)) 1807 { 1808 relocate = TRUE; 1809 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1810 outrel.r_addend = relocation + rel->r_addend; 1811 } 1812 else 1813 { 1814 BFD_ASSERT (h->dynindx != -1); 1815 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64); 1816 outrel.r_addend = relocation + rel->r_addend; 1817 } 1818 } 1819 1820 loc = sreloc->contents; 1821 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); 1822 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1823 1824 /* If this reloc is against an external symbol, we do 1825 not want to fiddle with the addend. Otherwise, we 1826 need to include the symbol value so that it becomes 1827 an addend for the dynamic reloc. */ 1828 if (! relocate) 1829 continue; 1830 } 1831 else if (r_type == R_SH_64) 1832 addend = rel->r_addend; 1833 goto final_link_relocate; 1834 1835 case R_SH_GOTPLT_LOW16: 1836 case R_SH_GOTPLT_MEDLOW16: 1837 case R_SH_GOTPLT_MEDHI16: 1838 case R_SH_GOTPLT_HI16: 1839 case R_SH_GOTPLT10BY4: 1840 case R_SH_GOTPLT10BY8: 1841 /* Relocation is to the entry for this symbol in the 1842 procedure linkage table. */ 1843 1844 if (h == NULL 1845 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1846 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 1847 || ! info->shared 1848 || info->symbolic 1849 || h->dynindx == -1 1850 || h->plt.offset == (bfd_vma) -1 1851 || h->got.offset != (bfd_vma) -1) 1852 goto force_got; 1853 1854 /* Relocation is to the entry for this symbol in the global 1855 offset table extension for the procedure linkage table. */ 1856 if (sgotplt == NULL) 1857 { 1858 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); 1859 BFD_ASSERT (sgotplt != NULL); 1860 } 1861 1862 relocation = (sgotplt->output_offset 1863 + ((h->plt.offset / elf_sh64_sizeof_plt (info) 1864 - 1 + 3) * 8)); 1865 1866 relocation -= GOT_BIAS; 1867 1868 goto final_link_relocate; 1869 1870 force_got: 1871 case R_SH_GOT_LOW16: 1872 case R_SH_GOT_MEDLOW16: 1873 case R_SH_GOT_MEDHI16: 1874 case R_SH_GOT_HI16: 1875 case R_SH_GOT10BY4: 1876 case R_SH_GOT10BY8: 1877 /* Relocation is to the entry for this symbol in the global 1878 offset table. */ 1879 if (sgot == NULL) 1880 { 1881 sgot = bfd_get_section_by_name (dynobj, ".got"); 1882 BFD_ASSERT (sgot != NULL); 1883 } 1884 1885 if (h != NULL) 1886 { 1887 bfd_vma off; 1888 1889 off = h->got.offset; 1890 if (seen_stt_datalabel) 1891 { 1892 struct elf_sh64_link_hash_entry *hsh; 1893 1894 hsh = (struct elf_sh64_link_hash_entry *)h; 1895 off = hsh->datalabel_got_offset; 1896 } 1897 BFD_ASSERT (off != (bfd_vma) -1); 1898 1899 if (! elf_hash_table (info)->dynamic_sections_created 1900 || (info->shared 1901 && (info->symbolic || h->dynindx == -1 1902 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1903 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 1904 && h->def_regular)) 1905 { 1906 /* This is actually a static link, or it is a 1907 -Bsymbolic link and the symbol is defined 1908 locally, or the symbol was forced to be local 1909 because of a version file. We must initialize 1910 this entry in the global offset table. Since the 1911 offset must always be a multiple of 4, we use the 1912 least significant bit to record whether we have 1913 initialized it already. 1914 1915 When doing a dynamic link, we create a .rela.got 1916 relocation entry to initialize the value. This 1917 is done in the finish_dynamic_symbol routine. */ 1918 if ((off & 1) != 0) 1919 off &= ~1; 1920 else 1921 { 1922 bfd_put_64 (output_bfd, relocation, 1923 sgot->contents + off); 1924 if (seen_stt_datalabel) 1925 { 1926 struct elf_sh64_link_hash_entry *hsh; 1927 1928 hsh = (struct elf_sh64_link_hash_entry *)h; 1929 hsh->datalabel_got_offset |= 1; 1930 } 1931 else 1932 h->got.offset |= 1; 1933 } 1934 } 1935 1936 relocation = sgot->output_offset + off; 1937 } 1938 else 1939 { 1940 bfd_vma off; 1941 1942 if (rel->r_addend) 1943 { 1944 BFD_ASSERT (local_got_offsets != NULL 1945 && (local_got_offsets[symtab_hdr->sh_info 1946 + r_symndx] 1947 != (bfd_vma) -1)); 1948 1949 off = local_got_offsets[symtab_hdr->sh_info 1950 + r_symndx]; 1951 } 1952 else 1953 { 1954 BFD_ASSERT (local_got_offsets != NULL 1955 && local_got_offsets[r_symndx] != (bfd_vma) -1); 1956 1957 off = local_got_offsets[r_symndx]; 1958 } 1959 1960 /* The offset must always be a multiple of 8. We use 1961 the least significant bit to record whether we have 1962 already generated the necessary reloc. */ 1963 if ((off & 1) != 0) 1964 off &= ~1; 1965 else 1966 { 1967 bfd_put_64 (output_bfd, relocation, sgot->contents + off); 1968 1969 if (info->shared) 1970 { 1971 asection *s; 1972 Elf_Internal_Rela outrel; 1973 bfd_byte *loc; 1974 1975 s = bfd_get_section_by_name (dynobj, ".rela.got"); 1976 BFD_ASSERT (s != NULL); 1977 1978 outrel.r_offset = (sgot->output_section->vma 1979 + sgot->output_offset 1980 + off); 1981 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1982 outrel.r_addend = relocation; 1983 loc = s->contents; 1984 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 1985 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1986 } 1987 1988 if (rel->r_addend) 1989 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1; 1990 else 1991 local_got_offsets[r_symndx] |= 1; 1992 } 1993 1994 relocation = sgot->output_offset + off; 1995 } 1996 1997 relocation -= GOT_BIAS; 1998 1999 goto final_link_relocate; 2000 2001 case R_SH_GOTOFF_LOW16: 2002 case R_SH_GOTOFF_MEDLOW16: 2003 case R_SH_GOTOFF_MEDHI16: 2004 case R_SH_GOTOFF_HI16: 2005 /* Relocation is relative to the start of the global offset 2006 table. */ 2007 2008 if (sgot == NULL) 2009 { 2010 sgot = bfd_get_section_by_name (dynobj, ".got"); 2011 BFD_ASSERT (sgot != NULL); 2012 } 2013 2014 /* Note that sgot->output_offset is not involved in this 2015 calculation. We always want the start of .got. If we 2016 defined _GLOBAL_OFFSET_TABLE in a different way, as is 2017 permitted by the ABI, we might have to change this 2018 calculation. */ 2019 relocation -= sgot->output_section->vma; 2020 2021 relocation -= GOT_BIAS; 2022 2023 addend = rel->r_addend; 2024 2025 goto final_link_relocate; 2026 2027 case R_SH_GOTPC_LOW16: 2028 case R_SH_GOTPC_MEDLOW16: 2029 case R_SH_GOTPC_MEDHI16: 2030 case R_SH_GOTPC_HI16: 2031 /* Use global offset table as symbol value. */ 2032 2033 if (sgot == NULL) 2034 { 2035 sgot = bfd_get_section_by_name (dynobj, ".got"); 2036 BFD_ASSERT (sgot != NULL); 2037 } 2038 2039 relocation = sgot->output_section->vma; 2040 2041 relocation += GOT_BIAS; 2042 2043 addend = rel->r_addend; 2044 2045 goto final_link_relocate; 2046 2047 case R_SH_PLT_LOW16: 2048 case R_SH_PLT_MEDLOW16: 2049 case R_SH_PLT_MEDHI16: 2050 case R_SH_PLT_HI16: 2051 /* Relocation is to the entry for this symbol in the 2052 procedure linkage table. */ 2053 2054 /* Resolve a PLT reloc against a local symbol directly, 2055 without using the procedure linkage table. */ 2056 if (h == NULL) 2057 goto final_link_relocate; 2058 2059 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2060 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 2061 goto final_link_relocate; 2062 2063 if (h->plt.offset == (bfd_vma) -1) 2064 { 2065 /* We didn't make a PLT entry for this symbol. This 2066 happens when statically linking PIC code, or when 2067 using -Bsymbolic. */ 2068 goto final_link_relocate; 2069 } 2070 2071 if (splt == NULL) 2072 { 2073 splt = bfd_get_section_by_name (dynobj, ".plt"); 2074 BFD_ASSERT (splt != NULL); 2075 } 2076 2077 relocation = (splt->output_section->vma 2078 + splt->output_offset 2079 + h->plt.offset); 2080 relocation++; 2081 2082 addend = rel->r_addend; 2083 2084 goto final_link_relocate; 2085 2086 case R_SH_DIR32: 2087 case R_SH_SHMEDIA_CODE: 2088 case R_SH_PT_16: 2089 case R_SH_DIR5U: 2090 case R_SH_DIR6S: 2091 case R_SH_DIR6U: 2092 case R_SH_DIR10S: 2093 case R_SH_DIR10SW: 2094 case R_SH_DIR10SL: 2095 case R_SH_DIR10SQ: 2096 case R_SH_IMMS16: 2097 case R_SH_IMMU16: 2098 case R_SH_IMM_LOW16: 2099 case R_SH_IMM_LOW16_PCREL: 2100 case R_SH_IMM_MEDLOW16: 2101 case R_SH_IMM_MEDLOW16_PCREL: 2102 case R_SH_IMM_MEDHI16: 2103 case R_SH_IMM_MEDHI16_PCREL: 2104 case R_SH_IMM_HI16: 2105 case R_SH_IMM_HI16_PCREL: 2106 addend = rel->r_addend; 2107 /* Fall through. */ 2108 case R_SH_REL32: 2109 final_link_relocate: 2110 r = _bfd_final_link_relocate (howto, input_bfd, input_section, 2111 contents, rel->r_offset, 2112 relocation, addend); 2113 break; 2114 2115 default: 2116 bfd_set_error (bfd_error_bad_value); 2117 return FALSE; 2118 2119 } 2120 2121 if (r != bfd_reloc_ok) 2122 { 2123 switch (r) 2124 { 2125 default: 2126 case bfd_reloc_outofrange: 2127 abort (); 2128 case bfd_reloc_overflow: 2129 { 2130 const char *name; 2131 2132 if (h != NULL) 2133 name = h->root.root.string; 2134 else 2135 { 2136 name = (bfd_elf_string_from_elf_section 2137 (input_bfd, symtab_hdr->sh_link, sym->st_name)); 2138 if (name == NULL) 2139 return FALSE; 2140 if (*name == '\0') 2141 name = bfd_section_name (input_bfd, sec); 2142 } 2143 if (! ((*info->callbacks->reloc_overflow) 2144 (info, name, howto->name, (bfd_vma) 0, 2145 input_bfd, input_section, rel->r_offset))) 2146 return FALSE; 2147 } 2148 break; 2149 } 2150 } 2151 } 2152 2153 return TRUE; 2154} 2155 2156/* This is a version of bfd_generic_get_relocated_section_contents 2157 that uses sh_elf64_relocate_section. 2158 2159 See sh_elf_relocate_section in elf32-sh.c for the original. */ 2160 2161static bfd_byte * 2162sh_elf64_get_relocated_section_contents (bfd *output_bfd, 2163 struct bfd_link_info *link_info, 2164 struct bfd_link_order *link_order, 2165 bfd_byte *data, 2166 bfd_boolean relocatable, 2167 asymbol **symbols) 2168{ 2169 Elf_Internal_Shdr *symtab_hdr; 2170 asection *input_section = link_order->u.indirect.section; 2171 bfd *input_bfd = input_section->owner; 2172 asection **sections = NULL; 2173 Elf_Internal_Rela *internal_relocs = NULL; 2174 Elf_Internal_Sym *isymbuf = NULL; 2175 2176 /* We only need to handle the case of relaxing, or of having a 2177 particular set of section contents, specially. */ 2178 if (relocatable 2179 || elf_section_data (input_section)->this_hdr.contents == NULL) 2180 return bfd_generic_get_relocated_section_contents (output_bfd, link_info, 2181 link_order, data, 2182 relocatable, 2183 symbols); 2184 2185 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 2186 2187 memcpy (data, elf_section_data (input_section)->this_hdr.contents, 2188 input_section->size); 2189 2190 if ((input_section->flags & SEC_RELOC) != 0 2191 && input_section->reloc_count > 0) 2192 { 2193 Elf_Internal_Sym *isymp; 2194 Elf_Internal_Sym *isymend; 2195 asection **secpp; 2196 2197 /* Read this BFD's local symbols. */ 2198 if (symtab_hdr->sh_info != 0) 2199 { 2200 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; 2201 if (isymbuf == NULL) 2202 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, 2203 symtab_hdr->sh_info, 0, 2204 NULL, NULL, NULL); 2205 if (isymbuf == NULL) 2206 goto error_return; 2207 } 2208 2209 internal_relocs = (_bfd_elf_link_read_relocs 2210 (input_bfd, input_section, NULL, 2211 (Elf_Internal_Rela *) NULL, FALSE)); 2212 if (internal_relocs == NULL) 2213 goto error_return; 2214 2215 sections = (asection **) bfd_malloc (symtab_hdr->sh_info 2216 * sizeof (asection *)); 2217 if (sections == NULL && symtab_hdr->sh_info > 0) 2218 goto error_return; 2219 2220 secpp = sections; 2221 isymend = isymbuf + symtab_hdr->sh_info; 2222 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp) 2223 { 2224 asection *isec; 2225 2226 if (isymp->st_shndx == SHN_UNDEF) 2227 isec = bfd_und_section_ptr; 2228 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE) 2229 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); 2230 else if (isymp->st_shndx == SHN_ABS) 2231 isec = bfd_abs_section_ptr; 2232 else if (isymp->st_shndx == SHN_COMMON) 2233 isec = bfd_com_section_ptr; 2234 else 2235 { 2236 /* Who knows? */ 2237 isec = NULL; 2238 } 2239 2240 *secpp = isec; 2241 } 2242 2243 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd, 2244 input_section, data, internal_relocs, 2245 isymbuf, sections)) 2246 goto error_return; 2247 2248 if (sections != NULL) 2249 free (sections); 2250 if (internal_relocs != elf_section_data (input_section)->relocs) 2251 free (internal_relocs); 2252 if (isymbuf != NULL 2253 && (unsigned char *) isymbuf != symtab_hdr->contents) 2254 free (isymbuf); 2255 } 2256 2257 return data; 2258 2259 error_return: 2260 if (sections != NULL) 2261 free (sections); 2262 if (internal_relocs != NULL 2263 && internal_relocs != elf_section_data (input_section)->relocs) 2264 free (internal_relocs); 2265 if (isymbuf != NULL 2266 && (unsigned char *) isymbuf != symtab_hdr->contents) 2267 free (isymbuf); 2268 return NULL; 2269} 2270 2271/* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */ 2272 2273bfd_boolean 2274sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED, 2275 Elf_Internal_Shdr *elf_section_hdr, 2276 asection *asect) 2277{ 2278 /* Code sections can only contain SH64 code, so mark them as such. */ 2279 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE) 2280 elf_section_hdr->sh_flags |= SHF_SH5_ISA32; 2281 2282 return TRUE; 2283} 2284 2285static bfd_boolean 2286sh_elf64_set_mach_from_flags (bfd *abfd) 2287{ 2288 flagword flags = elf_elfheader (abfd)->e_flags; 2289 2290 switch (flags & EF_SH_MACH_MASK) 2291 { 2292 case EF_SH5: 2293 /* Just one, but keep the switch construct to make additions easy. */ 2294 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5); 2295 break; 2296 2297 default: 2298 bfd_set_error (bfd_error_wrong_format); 2299 return FALSE; 2300 } 2301 return TRUE; 2302} 2303 2304/* Function to keep SH64 specific file flags. 2305 2306 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */ 2307 2308static bfd_boolean 2309sh_elf64_set_private_flags (bfd *abfd, flagword flags) 2310{ 2311 BFD_ASSERT (! elf_flags_init (abfd) 2312 || elf_elfheader (abfd)->e_flags == flags); 2313 2314 elf_elfheader (abfd)->e_flags = flags; 2315 elf_flags_init (abfd) = TRUE; 2316 return sh_elf64_set_mach_from_flags (abfd); 2317} 2318 2319/* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with 2320 code, to keep attributes the same as for SHmedia in 32-bit ELF. */ 2321 2322static bfd_boolean 2323sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd) 2324{ 2325 Elf_Internal_Shdr **o_shdrp; 2326 asection *isec; 2327 asection *osec; 2328 2329 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2330 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2331 return TRUE; 2332 2333 o_shdrp = elf_elfsections (obfd); 2334 for (osec = obfd->sections; osec; osec = osec->next) 2335 { 2336 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx; 2337 for (isec = ibfd->sections; isec; isec = isec->next) 2338 { 2339 if (strcmp (osec->name, isec->name) == 0) 2340 { 2341 /* Note that we're not disallowing mixing data and code. */ 2342 if ((elf_section_data (isec)->this_hdr.sh_flags 2343 & SHF_SH5_ISA32) != 0) 2344 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32; 2345 break; 2346 } 2347 } 2348 } 2349 2350 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); 2351} 2352 2353static bfd_boolean 2354sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd) 2355{ 2356 return sh_elf64_copy_private_data_internal (ibfd, obfd); 2357} 2358 2359static bfd_boolean 2360sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd) 2361{ 2362 flagword old_flags, new_flags; 2363 2364 if (! _bfd_generic_verify_endian_match (ibfd, obfd)) 2365 return FALSE; 2366 2367 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2368 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2369 return TRUE; 2370 2371 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd)) 2372 { 2373 const char *msg; 2374 2375 if (bfd_get_arch_size (ibfd) == 32 2376 && bfd_get_arch_size (obfd) == 64) 2377 msg = _("%s: compiled as 32-bit object and %s is 64-bit"); 2378 else if (bfd_get_arch_size (ibfd) == 64 2379 && bfd_get_arch_size (obfd) == 32) 2380 msg = _("%s: compiled as 64-bit object and %s is 32-bit"); 2381 else 2382 msg = _("%s: object size does not match that of target %s"); 2383 2384 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd), 2385 bfd_get_filename (obfd)); 2386 bfd_set_error (bfd_error_wrong_format); 2387 return FALSE; 2388 } 2389 2390 old_flags = elf_elfheader (obfd)->e_flags; 2391 new_flags = elf_elfheader (ibfd)->e_flags; 2392 if (! elf_flags_init (obfd)) 2393 { 2394 /* This happens when ld starts out with a 'blank' output file. */ 2395 elf_flags_init (obfd) = TRUE; 2396 elf_elfheader (obfd)->e_flags = old_flags = new_flags; 2397 } 2398 /* We don't allow linking in anything else than SH64 code, and since 2399 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code 2400 here as things change. */ 2401 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5) 2402 { 2403 (*_bfd_error_handler) 2404 ("%s: does not use the SH64 64-bit ABI as previous modules do", 2405 bfd_get_filename (ibfd)); 2406 bfd_set_error (bfd_error_bad_value); 2407 return FALSE; 2408 } 2409 2410 sh_elf64_copy_private_data_internal (ibfd, obfd); 2411 2412 /* I can't think of anything sane other than old_flags being EF_SH5 and 2413 that we need to preserve that. */ 2414 elf_elfheader (obfd)->e_flags = old_flags; 2415 2416 return sh_elf64_set_mach_from_flags (obfd); 2417} 2418 2419/* Return the section that should be marked against GC for a given 2420 relocation. */ 2421 2422static asection * 2423sh_elf64_gc_mark_hook (asection *sec, 2424 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2425 Elf_Internal_Rela *rel, 2426 struct elf_link_hash_entry *h, 2427 Elf_Internal_Sym *sym) 2428{ 2429 if (h != NULL) 2430 { 2431 switch (ELF64_R_TYPE (rel->r_info)) 2432 { 2433 case R_SH_GNU_VTINHERIT: 2434 case R_SH_GNU_VTENTRY: 2435 break; 2436 2437 default: 2438 while (h->root.type == bfd_link_hash_indirect 2439 && h->root.u.i.link) 2440 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2441 switch (h->root.type) 2442 { 2443 case bfd_link_hash_defined: 2444 case bfd_link_hash_defweak: 2445 return h->root.u.def.section; 2446 2447 case bfd_link_hash_common: 2448 return h->root.u.c.p->section; 2449 2450 default: 2451 break; 2452 } 2453 } 2454 } 2455 else 2456 return bfd_section_from_elf_index (sec->owner, sym->st_shndx); 2457 2458 return NULL; 2459} 2460 2461/* Update the got entry reference counts for the section being removed. */ 2462 2463static bfd_boolean 2464sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, 2465 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2466 asection *sec ATTRIBUTE_UNUSED, 2467 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) 2468{ 2469 /* No got and plt entries for 64-bit SH at present. */ 2470 return TRUE; 2471} 2472 2473/* Look through the relocs for a section during the first phase. 2474 Since we don't do .gots or .plts, we just need to consider the 2475 virtual table relocs for gc. */ 2476 2477static bfd_boolean 2478sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info, 2479 asection *sec, const Elf_Internal_Rela *relocs) 2480{ 2481 Elf_Internal_Shdr *symtab_hdr; 2482 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; 2483 const Elf_Internal_Rela *rel; 2484 const Elf_Internal_Rela *rel_end; 2485 bfd *dynobj; 2486 bfd_vma *local_got_offsets; 2487 asection *sgot; 2488 asection *srelgot; 2489 asection *sreloc; 2490 2491 sgot = NULL; 2492 srelgot = NULL; 2493 sreloc = NULL; 2494 2495 if (info->relocatable) 2496 return TRUE; 2497 2498 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 2499 sym_hashes = elf_sym_hashes (abfd); 2500 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym); 2501 if (!elf_bad_symtab (abfd)) 2502 sym_hashes_end -= symtab_hdr->sh_info; 2503 2504 dynobj = elf_hash_table (info)->dynobj; 2505 local_got_offsets = elf_local_got_offsets (abfd); 2506 2507 rel_end = relocs + sec->reloc_count; 2508 for (rel = relocs; rel < rel_end; rel++) 2509 { 2510 struct elf_link_hash_entry *h; 2511 unsigned long r_symndx; 2512 2513 r_symndx = ELF64_R_SYM (rel->r_info); 2514 if (r_symndx < symtab_hdr->sh_info) 2515 h = NULL; 2516 else 2517 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 2518 2519 /* Some relocs require a global offset table. */ 2520 if (dynobj == NULL) 2521 { 2522 switch (ELF64_R_TYPE (rel->r_info)) 2523 { 2524 case R_SH_GOTPLT_LOW16: 2525 case R_SH_GOTPLT_MEDLOW16: 2526 case R_SH_GOTPLT_MEDHI16: 2527 case R_SH_GOTPLT_HI16: 2528 case R_SH_GOTPLT10BY4: 2529 case R_SH_GOTPLT10BY8: 2530 case R_SH_GOT_LOW16: 2531 case R_SH_GOT_MEDLOW16: 2532 case R_SH_GOT_MEDHI16: 2533 case R_SH_GOT_HI16: 2534 case R_SH_GOT10BY4: 2535 case R_SH_GOT10BY8: 2536 case R_SH_GOTOFF_LOW16: 2537 case R_SH_GOTOFF_MEDLOW16: 2538 case R_SH_GOTOFF_MEDHI16: 2539 case R_SH_GOTOFF_HI16: 2540 case R_SH_GOTPC_LOW16: 2541 case R_SH_GOTPC_MEDLOW16: 2542 case R_SH_GOTPC_MEDHI16: 2543 case R_SH_GOTPC_HI16: 2544 elf_hash_table (info)->dynobj = dynobj = abfd; 2545 if (! _bfd_elf_create_got_section (dynobj, info)) 2546 return FALSE; 2547 break; 2548 2549 default: 2550 break; 2551 } 2552 } 2553 2554 switch (ELF64_R_TYPE (rel->r_info)) 2555 { 2556 /* This relocation describes the C++ object vtable hierarchy. 2557 Reconstruct it for later use during GC. */ 2558 case R_SH_GNU_VTINHERIT: 2559 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) 2560 return FALSE; 2561 break; 2562 2563 /* This relocation describes which C++ vtable entries are actually 2564 used. Record for later use during GC. */ 2565 case R_SH_GNU_VTENTRY: 2566 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) 2567 return FALSE; 2568 break; 2569 2570 force_got: 2571 case R_SH_GOT_LOW16: 2572 case R_SH_GOT_MEDLOW16: 2573 case R_SH_GOT_MEDHI16: 2574 case R_SH_GOT_HI16: 2575 case R_SH_GOT10BY4: 2576 case R_SH_GOT10BY8: 2577 /* This symbol requires a global offset table entry. */ 2578 2579 if (sgot == NULL) 2580 { 2581 sgot = bfd_get_section_by_name (dynobj, ".got"); 2582 BFD_ASSERT (sgot != NULL); 2583 } 2584 2585 if (srelgot == NULL 2586 && (h != NULL || info->shared)) 2587 { 2588 srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); 2589 if (srelgot == NULL) 2590 { 2591 srelgot = bfd_make_section (dynobj, ".rela.got"); 2592 if (srelgot == NULL 2593 || ! bfd_set_section_flags (dynobj, srelgot, 2594 (SEC_ALLOC 2595 | SEC_LOAD 2596 | SEC_HAS_CONTENTS 2597 | SEC_IN_MEMORY 2598 | SEC_LINKER_CREATED 2599 | SEC_READONLY)) 2600 || ! bfd_set_section_alignment (dynobj, srelgot, 2)) 2601 return FALSE; 2602 } 2603 } 2604 2605 if (h != NULL) 2606 { 2607 if (h->type == STT_DATALABEL) 2608 { 2609 struct elf_sh64_link_hash_entry *hsh; 2610 2611 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2612 hsh = (struct elf_sh64_link_hash_entry *)h; 2613 if (hsh->datalabel_got_offset != (bfd_vma) -1) 2614 break; 2615 2616 hsh->datalabel_got_offset = sgot->size; 2617 } 2618 else 2619 { 2620 if (h->got.offset != (bfd_vma) -1) 2621 { 2622 /* We have already allocated space in the .got. */ 2623 break; 2624 } 2625 h->got.offset = sgot->size; 2626 } 2627 2628 /* Make sure this symbol is output as a dynamic symbol. */ 2629 if (h->dynindx == -1) 2630 { 2631 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2632 return FALSE; 2633 } 2634 2635 srelgot->size += sizeof (Elf64_External_Rela); 2636 } 2637 else 2638 { 2639 /* This is a global offset table entry for a local 2640 symbol. */ 2641 if (local_got_offsets == NULL) 2642 { 2643 size_t size; 2644 register unsigned int i; 2645 2646 size = symtab_hdr->sh_info * sizeof (bfd_vma); 2647 /* Reserve space for both the datalabel and 2648 codelabel local GOT offsets. */ 2649 size *= 2; 2650 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); 2651 if (local_got_offsets == NULL) 2652 return FALSE; 2653 elf_local_got_offsets (abfd) = local_got_offsets; 2654 for (i = 0; i < symtab_hdr->sh_info; i++) 2655 local_got_offsets[i] = (bfd_vma) -1; 2656 for (; i < 2 * symtab_hdr->sh_info; i++) 2657 local_got_offsets[i] = (bfd_vma) -1; 2658 } 2659 if ((rel->r_addend & 1) != 0) 2660 { 2661 if (local_got_offsets[symtab_hdr->sh_info 2662 + r_symndx] != (bfd_vma) -1) 2663 { 2664 /* We have already allocated space in the .got. */ 2665 break; 2666 } 2667 local_got_offsets[symtab_hdr->sh_info 2668 + r_symndx] = sgot->size; 2669 } 2670 else 2671 { 2672 if (local_got_offsets[r_symndx] != (bfd_vma) -1) 2673 { 2674 /* We have already allocated space in the .got. */ 2675 break; 2676 } 2677 local_got_offsets[r_symndx] = sgot->size; 2678 } 2679 2680 if (info->shared) 2681 { 2682 /* If we are generating a shared object, we need to 2683 output a R_SH_RELATIVE reloc so that the dynamic 2684 linker can adjust this GOT entry. */ 2685 srelgot->size += sizeof (Elf64_External_Rela); 2686 } 2687 } 2688 2689 sgot->size += 8; 2690 2691 break; 2692 2693 case R_SH_GOTPLT_LOW16: 2694 case R_SH_GOTPLT_MEDLOW16: 2695 case R_SH_GOTPLT_MEDHI16: 2696 case R_SH_GOTPLT_HI16: 2697 case R_SH_GOTPLT10BY4: 2698 case R_SH_GOTPLT10BY8: 2699 /* If this is a local symbol, we resolve it directly without 2700 creating a procedure linkage table entry. */ 2701 2702 if (h == NULL 2703 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2704 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 2705 || ! info->shared 2706 || info->symbolic 2707 || h->dynindx == -1 2708 || h->got.offset != (bfd_vma) -1) 2709 goto force_got; 2710 2711 /* Make sure this symbol is output as a dynamic symbol. */ 2712 if (h->dynindx == -1) 2713 { 2714 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2715 return FALSE; 2716 } 2717 2718 h->needs_plt = 1; 2719 2720 break; 2721 2722 case R_SH_PLT_LOW16: 2723 case R_SH_PLT_MEDLOW16: 2724 case R_SH_PLT_MEDHI16: 2725 case R_SH_PLT_HI16: 2726 /* This symbol requires a procedure linkage table entry. We 2727 actually build the entry in adjust_dynamic_symbol, 2728 because this might be a case of linking PIC code which is 2729 never referenced by a dynamic object, in which case we 2730 don't need to generate a procedure linkage table entry 2731 after all. */ 2732 2733 /* If this is a local symbol, we resolve it directly without 2734 creating a procedure linkage table entry. */ 2735 if (h == NULL) 2736 continue; 2737 2738 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2739 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 2740 break; 2741 2742 h->needs_plt = 1; 2743 2744 break; 2745 2746 case R_SH_64: 2747 case R_SH_64_PCREL: 2748 if (h != NULL) 2749 h->non_got_ref = 1; 2750 2751 /* If we are creating a shared library, and this is a reloc 2752 against a global symbol, or a non PC relative reloc 2753 against a local symbol, then we need to copy the reloc 2754 into the shared library. However, if we are linking with 2755 -Bsymbolic, we do not need to copy a reloc against a 2756 global symbol which is defined in an object we are 2757 including in the link (i.e., DEF_REGULAR is set). At 2758 this point we have not seen all the input files, so it is 2759 possible that DEF_REGULAR is not set now but will be set 2760 later (it is never cleared). We account for that 2761 possibility below by storing information in the 2762 pcrel_relocs_copied field of the hash table entry. */ 2763 if (info->shared 2764 && (sec->flags & SEC_ALLOC) != 0 2765 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL 2766 || (h != NULL 2767 && (! info->symbolic 2768 || !h->def_regular)))) 2769 { 2770 /* When creating a shared object, we must copy these 2771 reloc types into the output file. We create a reloc 2772 section in dynobj and make room for this reloc. */ 2773 if (sreloc == NULL) 2774 { 2775 const char *name; 2776 2777 name = (bfd_elf_string_from_elf_section 2778 (abfd, 2779 elf_elfheader (abfd)->e_shstrndx, 2780 elf_section_data (sec)->rel_hdr.sh_name)); 2781 if (name == NULL) 2782 return FALSE; 2783 2784 BFD_ASSERT (strncmp (name, ".rela", 5) == 0 2785 && strcmp (bfd_get_section_name (abfd, sec), 2786 name + 5) == 0); 2787 2788 sreloc = bfd_get_section_by_name (dynobj, name); 2789 if (sreloc == NULL) 2790 { 2791 flagword flags; 2792 2793 sreloc = bfd_make_section (dynobj, name); 2794 flags = (SEC_HAS_CONTENTS | SEC_READONLY 2795 | SEC_IN_MEMORY | SEC_LINKER_CREATED); 2796 if ((sec->flags & SEC_ALLOC) != 0) 2797 flags |= SEC_ALLOC | SEC_LOAD; 2798 if (sreloc == NULL 2799 || ! bfd_set_section_flags (dynobj, sreloc, flags) 2800 || ! bfd_set_section_alignment (dynobj, sreloc, 2)) 2801 return FALSE; 2802 } 2803 } 2804 2805 sreloc->size += sizeof (Elf64_External_Rela); 2806 2807 /* If we are linking with -Bsymbolic, and this is a 2808 global symbol, we count the number of PC relative 2809 relocations we have entered for this symbol, so that 2810 we can discard them again if the symbol is later 2811 defined by a regular object. Note that this function 2812 is only called if we are using an elf_sh linker 2813 hash table, which means that h is really a pointer to 2814 an elf_sh_link_hash_entry. */ 2815 if (h != NULL && info->symbolic 2816 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL) 2817 { 2818 struct elf_sh64_link_hash_entry *eh; 2819 struct elf_sh64_pcrel_relocs_copied *p; 2820 2821 eh = (struct elf_sh64_link_hash_entry *) h; 2822 2823 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) 2824 if (p->section == sreloc) 2825 break; 2826 2827 if (p == NULL) 2828 { 2829 p = ((struct elf_sh64_pcrel_relocs_copied *) 2830 bfd_alloc (dynobj, sizeof *p)); 2831 if (p == NULL) 2832 return FALSE; 2833 p->next = eh->pcrel_relocs_copied; 2834 eh->pcrel_relocs_copied = p; 2835 p->section = sreloc; 2836 p->count = 0; 2837 } 2838 2839 ++p->count; 2840 } 2841 } 2842 2843 break; 2844 } 2845 } 2846 2847 return TRUE; 2848} 2849 2850static int 2851sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) 2852{ 2853 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL) 2854 return STT_DATALABEL; 2855 2856 return type; 2857} 2858 2859/* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c. 2860 Either file can presumably exist without the other, but do not differ 2861 in elf-size-ness. How to share? 2862 2863 Hook called by the linker routine which adds symbols from an object 2864 file. We must make indirect symbols for undefined symbols marked with 2865 STT_DATALABEL, so relocations passing them will pick up that attribute 2866 and neutralize STO_SH5_ISA32 found on the symbol definition. 2867 2868 There is a problem, though: We want to fill in the hash-table entry for 2869 this symbol and signal to the caller that no further processing is 2870 needed. But we don't have the index for this hash-table entry. We 2871 rely here on that the current entry is the first hash-entry with NULL, 2872 which seems brittle. Also, iterating over the hash-table to find that 2873 entry is a linear operation on the number of symbols in this input 2874 file, and this function should take constant time, so that's not good 2875 too. Only comfort is that DataLabel references should only be found in 2876 hand-written assembly code and thus be rare. FIXME: Talk maintainers 2877 into adding an option to elf_add_symbol_hook (preferably) for the index 2878 or the hash entry, alternatively adding the index to Elf_Internal_Sym 2879 (not so good). */ 2880 2881static bfd_boolean 2882sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info, 2883 Elf_Internal_Sym *sym, const char **namep, 2884 flagword *flagsp ATTRIBUTE_UNUSED, 2885 asection **secp, bfd_vma *valp) 2886{ 2887 /* We want to do this for relocatable as well as final linking. */ 2888 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL 2889 && is_elf_hash_table (info->hash)) 2890 { 2891 struct elf_link_hash_entry *h; 2892 2893 /* For relocatable links, we register the DataLabel sym in its own 2894 right, and tweak the name when it's output. Otherwise, we make 2895 an indirect symbol of it. */ 2896 flagword flags 2897 = info->relocatable || info->emitrelocations 2898 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT; 2899 2900 char *dl_name 2901 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX)); 2902 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd); 2903 2904 BFD_ASSERT (sym_hash != NULL); 2905 2906 /* Allocation may fail. */ 2907 if (dl_name == NULL) 2908 return FALSE; 2909 2910 strcpy (dl_name, *namep); 2911 strcat (dl_name, DATALABEL_SUFFIX); 2912 2913 h = (struct elf_link_hash_entry *) 2914 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE); 2915 2916 if (h == NULL) 2917 { 2918 /* No previous datalabel symbol. Make one. */ 2919 struct bfd_link_hash_entry *bh = NULL; 2920 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 2921 2922 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name, 2923 flags, *secp, *valp, 2924 *namep, FALSE, 2925 bed->collect, &bh)) 2926 { 2927 free (dl_name); 2928 return FALSE; 2929 } 2930 2931 h = (struct elf_link_hash_entry *) bh; 2932 h->non_elf = 0; 2933 h->type = STT_DATALABEL; 2934 } 2935 else 2936 /* If a new symbol was created, it holds the allocated name. 2937 Otherwise, we don't need it anymore and should deallocate it. */ 2938 free (dl_name); 2939 2940 if (h->type != STT_DATALABEL 2941 || ((info->relocatable || info->emitrelocations) 2942 && h->root.type != bfd_link_hash_undefined) 2943 || (! info->relocatable && !info->emitrelocations 2944 && h->root.type != bfd_link_hash_indirect)) 2945 { 2946 /* Make sure we don't get confused on invalid input. */ 2947 (*_bfd_error_handler) 2948 (_("%s: encountered datalabel symbol in input"), 2949 bfd_get_filename (abfd)); 2950 bfd_set_error (bfd_error_bad_value); 2951 return FALSE; 2952 } 2953 2954 /* Now find the hash-table slot for this entry and fill it in. */ 2955 while (*sym_hash != NULL) 2956 sym_hash++; 2957 *sym_hash = h; 2958 2959 /* Signal to caller to skip this symbol - we've handled it. */ 2960 *namep = NULL; 2961 } 2962 2963 return TRUE; 2964} 2965 2966/* This hook function is called before the linker writes out a global 2967 symbol. For relocatable links, DataLabel symbols will be present in 2968 linker output. We cut off the special suffix on those symbols, so the 2969 right name appears in the output. 2970 2971 When linking and emitting relocations, there can appear global symbols 2972 that are not referenced by relocs, but rather only implicitly through 2973 DataLabel references, a relation that is not visible to the linker. 2974 Since no stripping of global symbols in done when doing such linking, 2975 we don't need to look up and make sure to emit the main symbol for each 2976 DataLabel symbol. */ 2977 2978static bfd_boolean 2979sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info, 2980 const char *cname, 2981 Elf_Internal_Sym *sym, 2982 asection *input_sec ATTRIBUTE_UNUSED, 2983 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 2984{ 2985 char *name = (char *) cname; 2986 2987 if (info->relocatable || info->emitrelocations) 2988 { 2989 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL) 2990 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0; 2991 } 2992 2993 return TRUE; 2994} 2995 2996/* Set bit 0 on the entry address; it always points to SHmedia code. This 2997 is mostly for symmetry with the 32-bit format, where code can be 2998 SHcompact and we need to make a distinction to make sure execution 2999 starts in the right ISA mode. It is also convenient for a loader, 3000 which would otherwise have to set this bit when loading a TR register 3001 before jumping to the program entry. */ 3002 3003static void 3004sh64_elf64_final_write_processing (bfd *abfd, 3005 bfd_boolean linker ATTRIBUTE_UNUSED) 3006{ 3007 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied 3008 numerically, but we currently lack the infrastructure to recognize 3009 that: The entry symbol, and info whether it is numeric or a symbol 3010 name is kept private in the linker. */ 3011 if (elf_elfheader (abfd)->e_type == ET_EXEC) 3012 elf_elfheader (abfd)->e_entry |= 1; 3013} 3014 3015/* First entry in an absolute procedure linkage table look like this. */ 3016 3017static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] = 3018{ 3019 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */ 3020 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */ 3021 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */ 3022 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */ 3023 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 3024 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3025 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 3026 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3027 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3028 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3029 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3030 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3031 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3032 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3033 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3034 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3035}; 3036 3037static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] = 3038{ 3039 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */ 3040 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */ 3041 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */ 3042 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */ 3043 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 3044 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3045 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 3046 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3047 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3048 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3049 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3050 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3051 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3052 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3053 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3054 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3055}; 3056 3057/* Sebsequent entries in an absolute procedure linkage table look like 3058 this. */ 3059 3060static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] = 3061{ 3062 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */ 3063 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */ 3064 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */ 3065 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */ 3066 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */ 3067 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3068 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3069 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3070 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */ 3071 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */ 3072 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */ 3073 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 3074 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 3075 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3076 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3077 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3078}; 3079 3080static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] = 3081{ 3082 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */ 3083 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3084 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3085 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3086 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */ 3087 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3088 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3089 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3090 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */ 3091 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */ 3092 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */ 3093 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 3094 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 3095 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3096 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3097 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3098}; 3099 3100/* Entries in a PIC procedure linkage table look like this. */ 3101 3102static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] = 3103{ 3104 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */ 3105 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */ 3106 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */ 3107 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3108 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3109 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3110 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3111 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3112 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */ 3113 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */ 3114 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 3115 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3116 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 3117 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 3118 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 3119 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3120}; 3121 3122static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] = 3123{ 3124 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */ 3125 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */ 3126 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */ 3127 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3128 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3129 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3130 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3131 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3132 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */ 3133 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */ 3134 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 3135 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3136 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 3137 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 3138 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 3139 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3140}; 3141 3142static const bfd_byte *elf_sh64_plt0_entry; 3143static const bfd_byte *elf_sh64_plt_entry; 3144static const bfd_byte *elf_sh64_pic_plt_entry; 3145 3146/* Create an entry in an sh ELF linker hash table. */ 3147 3148static struct bfd_hash_entry * 3149sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry, 3150 struct bfd_hash_table *table, 3151 const char *string) 3152{ 3153 struct elf_sh64_link_hash_entry *ret = 3154 (struct elf_sh64_link_hash_entry *) entry; 3155 3156 /* Allocate the structure if it has not already been allocated by a 3157 subclass. */ 3158 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 3159 ret = ((struct elf_sh64_link_hash_entry *) 3160 bfd_hash_allocate (table, 3161 sizeof (struct elf_sh64_link_hash_entry))); 3162 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 3163 return (struct bfd_hash_entry *) ret; 3164 3165 /* Call the allocation method of the superclass. */ 3166 ret = ((struct elf_sh64_link_hash_entry *) 3167 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, 3168 table, string)); 3169 if (ret != (struct elf_sh64_link_hash_entry *) NULL) 3170 { 3171 ret->pcrel_relocs_copied = NULL; 3172 ret->datalabel_got_offset = (bfd_vma) -1; 3173 } 3174 3175 return (struct bfd_hash_entry *) ret; 3176} 3177 3178/* Create an sh64 ELF linker hash table. */ 3179 3180static struct bfd_link_hash_table * 3181sh64_elf64_link_hash_table_create (bfd *abfd) 3182{ 3183 struct elf_sh64_link_hash_table *ret; 3184 3185 ret = ((struct elf_sh64_link_hash_table *) 3186 bfd_malloc (sizeof (struct elf_sh64_link_hash_table))); 3187 if (ret == (struct elf_sh64_link_hash_table *) NULL) 3188 return NULL; 3189 3190 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, 3191 sh64_elf64_link_hash_newfunc)) 3192 { 3193 free (ret); 3194 return NULL; 3195 } 3196 3197 return &ret->root.root; 3198} 3199 3200inline static void 3201movi_shori_putval (bfd *output_bfd, unsigned long value, char *addr) 3202{ 3203 bfd_put_32 (output_bfd, 3204 bfd_get_32 (output_bfd, addr) 3205 | ((value >> 6) & 0x3fffc00), 3206 addr); 3207 bfd_put_32 (output_bfd, 3208 bfd_get_32 (output_bfd, addr + 4) 3209 | ((value << 10) & 0x3fffc00), 3210 addr + 4); 3211} 3212 3213inline static void 3214movi_3shori_putval (bfd *output_bfd, bfd_vma value, char *addr) 3215{ 3216 bfd_put_32 (output_bfd, 3217 bfd_get_32 (output_bfd, addr) 3218 | ((value >> 38) & 0x3fffc00), 3219 addr); 3220 bfd_put_32 (output_bfd, 3221 bfd_get_32 (output_bfd, addr + 4) 3222 | ((value >> 22) & 0x3fffc00), 3223 addr + 4); 3224 bfd_put_32 (output_bfd, 3225 bfd_get_32 (output_bfd, addr + 8) 3226 | ((value >> 6) & 0x3fffc00), 3227 addr + 8); 3228 bfd_put_32 (output_bfd, 3229 bfd_get_32 (output_bfd, addr + 12) 3230 | ((value << 10) & 0x3fffc00), 3231 addr + 12); 3232} 3233 3234/* Create dynamic sections when linking against a dynamic object. */ 3235 3236static bfd_boolean 3237sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) 3238{ 3239 flagword flags, pltflags; 3240 register asection *s; 3241 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 3242 int ptralign = 0; 3243 3244 switch (bed->s->arch_size) 3245 { 3246 case 32: 3247 ptralign = 2; 3248 break; 3249 3250 case 64: 3251 ptralign = 3; 3252 break; 3253 3254 default: 3255 bfd_set_error (bfd_error_bad_value); 3256 return FALSE; 3257 } 3258 3259 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and 3260 .rel[a].bss sections. */ 3261 3262 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY 3263 | SEC_LINKER_CREATED); 3264 3265 pltflags = flags; 3266 pltflags |= SEC_CODE; 3267 if (bed->plt_not_loaded) 3268 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); 3269 if (bed->plt_readonly) 3270 pltflags |= SEC_READONLY; 3271 3272 s = bfd_make_section (abfd, ".plt"); 3273 if (s == NULL 3274 || ! bfd_set_section_flags (abfd, s, pltflags) 3275 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) 3276 return FALSE; 3277 3278 if (bed->want_plt_sym) 3279 { 3280 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the 3281 .plt section. */ 3282 struct elf_link_hash_entry *h; 3283 struct bfd_link_hash_entry *bh = NULL; 3284 3285 if (! (_bfd_generic_link_add_one_symbol 3286 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 3287 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh))) 3288 return FALSE; 3289 3290 h = (struct elf_link_hash_entry *) bh; 3291 h->def_regular = 1; 3292 h->type = STT_OBJECT; 3293 3294 if (info->shared 3295 && ! bfd_elf_link_record_dynamic_symbol (info, h)) 3296 return FALSE; 3297 } 3298 3299 s = bfd_make_section (abfd, 3300 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); 3301 if (s == NULL 3302 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) 3303 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3304 return FALSE; 3305 3306 if (! _bfd_elf_create_got_section (abfd, info)) 3307 return FALSE; 3308 3309 { 3310 const char *secname; 3311 char *relname; 3312 flagword secflags; 3313 asection *sec; 3314 3315 for (sec = abfd->sections; sec; sec = sec->next) 3316 { 3317 secflags = bfd_get_section_flags (abfd, sec); 3318 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) 3319 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) 3320 continue; 3321 secname = bfd_get_section_name (abfd, sec); 3322 relname = (char *) bfd_malloc (strlen (secname) + 6); 3323 strcpy (relname, ".rela"); 3324 strcat (relname, secname); 3325 s = bfd_make_section (abfd, relname); 3326 if (s == NULL 3327 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) 3328 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3329 return FALSE; 3330 } 3331 } 3332 3333 if (bed->want_dynbss) 3334 { 3335 /* The .dynbss section is a place to put symbols which are defined 3336 by dynamic objects, are referenced by regular objects, and are 3337 not functions. We must allocate space for them in the process 3338 image and use a R_*_COPY reloc to tell the dynamic linker to 3339 initialize them at run time. The linker script puts the .dynbss 3340 section into the .bss section of the final image. */ 3341 s = bfd_make_section (abfd, ".dynbss"); 3342 if (s == NULL 3343 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) 3344 return FALSE; 3345 3346 /* The .rel[a].bss section holds copy relocs. This section is not 3347 normally needed. We need to create it here, though, so that the 3348 linker will map it to an output section. We can't just create it 3349 only if we need it, because we will not know whether we need it 3350 until we have seen all the input files, and the first time the 3351 main linker code calls BFD after examining all the input files 3352 (size_dynamic_sections) the input sections have already been 3353 mapped to the output sections. If the section turns out not to 3354 be needed, we can discard it later. We will never need this 3355 section when generating a shared object, since they do not use 3356 copy relocs. */ 3357 if (! info->shared) 3358 { 3359 s = bfd_make_section (abfd, 3360 (bed->default_use_rela_p 3361 ? ".rela.bss" : ".rel.bss")); 3362 if (s == NULL 3363 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) 3364 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3365 return FALSE; 3366 } 3367 } 3368 3369 return TRUE; 3370} 3371 3372/* Adjust a symbol defined by a dynamic object and referenced by a 3373 regular object. The current definition is in some section of the 3374 dynamic object, but we're not including those sections. We have to 3375 change the definition to something the rest of the link can 3376 understand. */ 3377 3378static bfd_boolean 3379sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info, 3380 struct elf_link_hash_entry *h) 3381{ 3382 bfd *dynobj; 3383 asection *s; 3384 unsigned int power_of_two; 3385 3386 dynobj = elf_hash_table (info)->dynobj; 3387 3388 /* Make sure we know what is going on here. */ 3389 BFD_ASSERT (dynobj != NULL 3390 && (h->needs_plt 3391 || h->u.weakdef != NULL 3392 || (h->def_dynamic 3393 && h->ref_regular 3394 && !h->def_regular))); 3395 3396 /* If this is a function, put it in the procedure linkage table. We 3397 will fill in the contents of the procedure linkage table later, 3398 when we know the address of the .got section. */ 3399 if (h->type == STT_FUNC 3400 || h->needs_plt) 3401 { 3402 if (! info->shared 3403 && !h->def_dynamic 3404 && !h->ref_dynamic) 3405 { 3406 /* This case can occur if we saw a PLT reloc in an input 3407 file, but the symbol was never referred to by a dynamic 3408 object. In such a case, we don't actually need to build 3409 a procedure linkage table, and we can just do a REL64 3410 reloc instead. */ 3411 BFD_ASSERT (h->needs_plt); 3412 return TRUE; 3413 } 3414 3415 /* Make sure this symbol is output as a dynamic symbol. */ 3416 if (h->dynindx == -1) 3417 { 3418 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3419 return FALSE; 3420 } 3421 3422 s = bfd_get_section_by_name (dynobj, ".plt"); 3423 BFD_ASSERT (s != NULL); 3424 3425 /* If this is the first .plt entry, make room for the special 3426 first entry. */ 3427 if (s->size == 0) 3428 s->size += PLT_ENTRY_SIZE; 3429 3430 /* If this symbol is not defined in a regular file, and we are 3431 not generating a shared library, then set the symbol to this 3432 location in the .plt. This is required to make function 3433 pointers compare as equal between the normal executable and 3434 the shared library. */ 3435 if (! info->shared 3436 && !h->def_regular) 3437 { 3438 h->root.u.def.section = s; 3439 h->root.u.def.value = s->size; 3440 } 3441 3442 h->plt.offset = s->size; 3443 3444 /* Make room for this entry. */ 3445 s->size += elf_sh64_sizeof_plt (info); 3446 3447 /* We also need to make an entry in the .got.plt section, which 3448 will be placed in the .got section by the linker script. */ 3449 3450 s = bfd_get_section_by_name (dynobj, ".got.plt"); 3451 BFD_ASSERT (s != NULL); 3452 s->size += 8; 3453 3454 /* We also need to make an entry in the .rela.plt section. */ 3455 3456 s = bfd_get_section_by_name (dynobj, ".rela.plt"); 3457 BFD_ASSERT (s != NULL); 3458 s->size += sizeof (Elf64_External_Rela); 3459 3460 return TRUE; 3461 } 3462 3463 /* If this is a weak symbol, and there is a real definition, the 3464 processor independent code will have arranged for us to see the 3465 real definition first, and we can just use the same value. */ 3466 if (h->u.weakdef != NULL) 3467 { 3468 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined 3469 || h->u.weakdef->root.type == bfd_link_hash_defweak); 3470 h->root.u.def.section = h->u.weakdef->root.u.def.section; 3471 h->root.u.def.value = h->u.weakdef->root.u.def.value; 3472 return TRUE; 3473 } 3474 3475 /* This is a reference to a symbol defined by a dynamic object which 3476 is not a function. */ 3477 3478 /* If we are creating a shared library, we must presume that the 3479 only references to the symbol are via the global offset table. 3480 For such cases we need not do anything here; the relocations will 3481 be handled correctly by relocate_section. */ 3482 if (info->shared) 3483 return TRUE; 3484 3485 /* If there are no references to this symbol that do not use the 3486 GOT, we don't need to generate a copy reloc. */ 3487 if (!h->non_got_ref) 3488 return TRUE; 3489 3490 /* We must allocate the symbol in our .dynbss section, which will 3491 become part of the .bss section of the executable. There will be 3492 an entry for this symbol in the .dynsym section. The dynamic 3493 object will contain position independent code, so all references 3494 from the dynamic object to this symbol will go through the global 3495 offset table. The dynamic linker will use the .dynsym entry to 3496 determine the address it must put in the global offset table, so 3497 both the dynamic object and the regular object will refer to the 3498 same memory location for the variable. */ 3499 3500 s = bfd_get_section_by_name (dynobj, ".dynbss"); 3501 BFD_ASSERT (s != NULL); 3502 3503 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to 3504 copy the initial value out of the dynamic object and into the 3505 runtime process image. We need to remember the offset into the 3506 .rela.bss section we are going to use. */ 3507 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) 3508 { 3509 asection *srel; 3510 3511 srel = bfd_get_section_by_name (dynobj, ".rela.bss"); 3512 BFD_ASSERT (srel != NULL); 3513 srel->size += sizeof (Elf64_External_Rela); 3514 h->needs_copy = 1; 3515 } 3516 3517 /* We need to figure out the alignment required for this symbol. I 3518 have no idea how ELF linkers handle this. */ 3519 power_of_two = bfd_log2 (h->size); 3520 if (power_of_two > 3) 3521 power_of_two = 3; 3522 3523 /* Apply the required alignment. */ 3524 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); 3525 if (power_of_two > bfd_get_section_alignment (dynobj, s)) 3526 { 3527 if (! bfd_set_section_alignment (dynobj, s, power_of_two)) 3528 return FALSE; 3529 } 3530 3531 /* Define the symbol as being at this point in the section. */ 3532 h->root.u.def.section = s; 3533 h->root.u.def.value = s->size; 3534 3535 /* Increment the section size to make room for the symbol. */ 3536 s->size += h->size; 3537 3538 return TRUE; 3539} 3540 3541/* This function is called via sh_elf_link_hash_traverse if we are 3542 creating a shared object with -Bsymbolic. It discards the space 3543 allocated to copy PC relative relocs against symbols which are 3544 defined in regular objects. We allocated space for them in the 3545 check_relocs routine, but we won't fill them in in the 3546 relocate_section routine. */ 3547 3548static bfd_boolean 3549sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h, 3550 void *ignore ATTRIBUTE_UNUSED) 3551{ 3552 struct elf_sh64_pcrel_relocs_copied *s; 3553 3554 if (h->root.root.type == bfd_link_hash_warning) 3555 h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link; 3556 3557 /* We only discard relocs for symbols defined in a regular object. */ 3558 if (!h->root.def_regular) 3559 return TRUE; 3560 3561 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) 3562 s->section->size -= s->count * sizeof (Elf64_External_Rela); 3563 3564 return TRUE; 3565} 3566 3567/* Set the sizes of the dynamic sections. */ 3568 3569static bfd_boolean 3570sh64_elf64_size_dynamic_sections (bfd *output_bfd, 3571 struct bfd_link_info *info) 3572{ 3573 bfd *dynobj; 3574 asection *s; 3575 bfd_boolean plt; 3576 bfd_boolean relocs; 3577 bfd_boolean reltext; 3578 3579 dynobj = elf_hash_table (info)->dynobj; 3580 BFD_ASSERT (dynobj != NULL); 3581 3582 if (elf_hash_table (info)->dynamic_sections_created) 3583 { 3584 /* Set the contents of the .interp section to the interpreter. */ 3585 if (info->executable) 3586 { 3587 s = bfd_get_section_by_name (dynobj, ".interp"); 3588 BFD_ASSERT (s != NULL); 3589 s->size = sizeof ELF_DYNAMIC_INTERPRETER; 3590 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; 3591 } 3592 } 3593 else 3594 { 3595 /* We may have created entries in the .rela.got section. 3596 However, if we are not creating the dynamic sections, we will 3597 not actually use these entries. Reset the size of .rela.got, 3598 which will cause it to get stripped from the output file 3599 below. */ 3600 s = bfd_get_section_by_name (dynobj, ".rela.got"); 3601 if (s != NULL) 3602 s->size = 0; 3603 } 3604 3605 /* If this is a -Bsymbolic shared link, then we need to discard all 3606 PC relative relocs against symbols defined in a regular object. 3607 We allocated space for them in the check_relocs routine, but we 3608 will not fill them in in the relocate_section routine. */ 3609 if (info->shared && info->symbolic) 3610 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info), 3611 sh64_elf64_discard_copies, NULL); 3612 3613 /* The check_relocs and adjust_dynamic_symbol entry points have 3614 determined the sizes of the various dynamic sections. Allocate 3615 memory for them. */ 3616 plt = FALSE; 3617 relocs = FALSE; 3618 reltext = FALSE; 3619 for (s = dynobj->sections; s != NULL; s = s->next) 3620 { 3621 const char *name; 3622 bfd_boolean strip; 3623 3624 if ((s->flags & SEC_LINKER_CREATED) == 0) 3625 continue; 3626 3627 /* It's OK to base decisions on the section name, because none 3628 of the dynobj section names depend upon the input files. */ 3629 name = bfd_get_section_name (dynobj, s); 3630 3631 strip = FALSE; 3632 3633 if (strcmp (name, ".plt") == 0) 3634 { 3635 if (s->size == 0) 3636 { 3637 /* Strip this section if we don't need it; see the 3638 comment below. */ 3639 strip = TRUE; 3640 } 3641 else 3642 { 3643 /* Remember whether there is a PLT. */ 3644 plt = TRUE; 3645 } 3646 } 3647 else if (strncmp (name, ".rela", 5) == 0) 3648 { 3649 if (s->size == 0) 3650 { 3651 /* If we don't need this section, strip it from the 3652 output file. This is mostly to handle .rela.bss and 3653 .rela.plt. We must create both sections in 3654 create_dynamic_sections, because they must be created 3655 before the linker maps input sections to output 3656 sections. The linker does that before 3657 adjust_dynamic_symbol is called, and it is that 3658 function which decides whether anything needs to go 3659 into these sections. */ 3660 strip = TRUE; 3661 } 3662 else 3663 { 3664 asection *target; 3665 3666 /* Remember whether there are any reloc sections other 3667 than .rela.plt. */ 3668 if (strcmp (name, ".rela.plt") != 0) 3669 { 3670 const char *outname; 3671 3672 relocs = TRUE; 3673 3674 /* If this relocation section applies to a read only 3675 section, then we probably need a DT_TEXTREL 3676 entry. The entries in the .rela.plt section 3677 really apply to the .got section, which we 3678 created ourselves and so know is not readonly. */ 3679 outname = bfd_get_section_name (output_bfd, 3680 s->output_section); 3681 target = bfd_get_section_by_name (output_bfd, outname + 5); 3682 if (target != NULL 3683 && (target->flags & SEC_READONLY) != 0 3684 && (target->flags & SEC_ALLOC) != 0) 3685 reltext = TRUE; 3686 } 3687 3688 /* We use the reloc_count field as a counter if we need 3689 to copy relocs into the output file. */ 3690 s->reloc_count = 0; 3691 } 3692 } 3693 else if (strncmp (name, ".got", 4) != 0) 3694 { 3695 /* It's not one of our sections, so don't allocate space. */ 3696 continue; 3697 } 3698 3699 if (strip) 3700 { 3701 _bfd_strip_section_from_output (info, s); 3702 continue; 3703 } 3704 3705 /* Allocate memory for the section contents. */ 3706 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); 3707 if (s->contents == NULL && s->size != 0) 3708 return FALSE; 3709 } 3710 3711 if (elf_hash_table (info)->dynamic_sections_created) 3712 { 3713 /* Add some entries to the .dynamic section. We fill in the 3714 values later, in sh64_elf64_finish_dynamic_sections, but we 3715 must add the entries now so that we get the correct size for 3716 the .dynamic section. The DT_DEBUG entry is filled in by the 3717 dynamic linker and used by the debugger. */ 3718 if (info->executable) 3719 { 3720 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) 3721 return FALSE; 3722 } 3723 3724 if (plt) 3725 { 3726 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) 3727 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) 3728 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) 3729 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) 3730 return FALSE; 3731 } 3732 3733 if (relocs) 3734 { 3735 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) 3736 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) 3737 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, 3738 sizeof (Elf64_External_Rela))) 3739 return FALSE; 3740 } 3741 3742 if (reltext) 3743 { 3744 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) 3745 return FALSE; 3746 } 3747 } 3748 3749 return TRUE; 3750} 3751 3752/* Finish up dynamic symbol handling. We set the contents of various 3753 dynamic sections here. */ 3754 3755static bfd_boolean 3756sh64_elf64_finish_dynamic_symbol (bfd *output_bfd, 3757 struct bfd_link_info *info, 3758 struct elf_link_hash_entry *h, 3759 Elf_Internal_Sym *sym) 3760{ 3761 bfd *dynobj; 3762 3763 dynobj = elf_hash_table (info)->dynobj; 3764 3765 if (h->plt.offset != (bfd_vma) -1) 3766 { 3767 asection *splt; 3768 asection *sgot; 3769 asection *srel; 3770 3771 bfd_vma plt_index; 3772 bfd_vma got_offset; 3773 Elf_Internal_Rela rel; 3774 bfd_byte *loc; 3775 3776 /* This symbol has an entry in the procedure linkage table. Set 3777 it up. */ 3778 3779 BFD_ASSERT (h->dynindx != -1); 3780 3781 splt = bfd_get_section_by_name (dynobj, ".plt"); 3782 sgot = bfd_get_section_by_name (dynobj, ".got.plt"); 3783 srel = bfd_get_section_by_name (dynobj, ".rela.plt"); 3784 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); 3785 3786 /* Get the index in the procedure linkage table which 3787 corresponds to this symbol. This is the index of this symbol 3788 in all the symbols for which we are making plt entries. The 3789 first entry in the procedure linkage table is reserved. */ 3790 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1; 3791 3792 /* Get the offset into the .got table of the entry that 3793 corresponds to this function. Each .got entry is 8 bytes. 3794 The first three are reserved. */ 3795 got_offset = (plt_index + 3) * 8; 3796 3797 if (info->shared) 3798 got_offset -= GOT_BIAS; 3799 3800 /* Fill in the entry in the procedure linkage table. */ 3801 if (! info->shared) 3802 { 3803 if (elf_sh64_plt_entry == NULL) 3804 { 3805 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ? 3806 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le); 3807 } 3808 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry, 3809 elf_sh64_sizeof_plt (info)); 3810 movi_3shori_putval (output_bfd, 3811 (sgot->output_section->vma 3812 + sgot->output_offset 3813 + got_offset), 3814 (splt->contents + h->plt.offset 3815 + elf_sh64_plt_symbol_offset (info))); 3816 3817 /* Set bottom bit because its for a branch to SHmedia */ 3818 movi_shori_putval (output_bfd, 3819 -(h->plt.offset 3820 + elf_sh64_plt_plt0_offset (info) + 8) 3821 | 1, 3822 (splt->contents + h->plt.offset 3823 + elf_sh64_plt_plt0_offset (info))); 3824 } 3825 else 3826 { 3827 if (elf_sh64_pic_plt_entry == NULL) 3828 { 3829 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 3830 elf_sh64_pic_plt_entry_be : 3831 elf_sh64_pic_plt_entry_le); 3832 } 3833 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry, 3834 elf_sh64_sizeof_plt (info)); 3835 movi_shori_putval (output_bfd, got_offset, 3836 (splt->contents + h->plt.offset 3837 + elf_sh64_plt_symbol_offset (info))); 3838 } 3839 3840 if (info->shared) 3841 got_offset += GOT_BIAS; 3842 3843 movi_shori_putval (output_bfd, 3844 plt_index * sizeof (Elf64_External_Rela), 3845 (splt->contents + h->plt.offset 3846 + elf_sh64_plt_reloc_offset (info))); 3847 3848 /* Fill in the entry in the global offset table. */ 3849 bfd_put_64 (output_bfd, 3850 (splt->output_section->vma 3851 + splt->output_offset 3852 + h->plt.offset 3853 + elf_sh64_plt_temp_offset (info)), 3854 sgot->contents + got_offset); 3855 3856 /* Fill in the entry in the .rela.plt section. */ 3857 rel.r_offset = (sgot->output_section->vma 3858 + sgot->output_offset 3859 + got_offset); 3860 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64); 3861 rel.r_addend = 0; 3862 rel.r_addend = GOT_BIAS; 3863 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela); 3864 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3865 3866 if (!h->def_regular) 3867 { 3868 /* Mark the symbol as undefined, rather than as defined in 3869 the .plt section. Leave the value alone. */ 3870 sym->st_shndx = SHN_UNDEF; 3871 } 3872 } 3873 3874 if (h->got.offset != (bfd_vma) -1) 3875 { 3876 asection *sgot; 3877 asection *srel; 3878 Elf_Internal_Rela rel; 3879 bfd_byte *loc; 3880 3881 /* This symbol has an entry in the global offset table. Set it 3882 up. */ 3883 3884 sgot = bfd_get_section_by_name (dynobj, ".got"); 3885 srel = bfd_get_section_by_name (dynobj, ".rela.got"); 3886 BFD_ASSERT (sgot != NULL && srel != NULL); 3887 3888 rel.r_offset = (sgot->output_section->vma 3889 + sgot->output_offset 3890 + (h->got.offset &~ 1)); 3891 3892 /* If this is a -Bsymbolic link, and the symbol is defined 3893 locally, we just want to emit a RELATIVE reloc. Likewise if 3894 the symbol was forced to be local because of a version file. 3895 The entry in the global offset table will already have been 3896 initialized in the relocate_section function. */ 3897 if (info->shared 3898 && (info->symbolic || h->dynindx == -1) 3899 && h->def_regular) 3900 { 3901 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 3902 rel.r_addend = (h->root.u.def.value 3903 + h->root.u.def.section->output_section->vma 3904 + h->root.u.def.section->output_offset); 3905 } 3906 else 3907 { 3908 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); 3909 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64); 3910 rel.r_addend = 0; 3911 } 3912 3913 loc = srel->contents; 3914 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); 3915 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3916 } 3917 3918 if (h->needs_copy) 3919 { 3920 asection *s; 3921 Elf_Internal_Rela rel; 3922 bfd_byte *loc; 3923 3924 /* This symbol needs a copy reloc. Set it up. */ 3925 3926 BFD_ASSERT (h->dynindx != -1 3927 && (h->root.type == bfd_link_hash_defined 3928 || h->root.type == bfd_link_hash_defweak)); 3929 3930 s = bfd_get_section_by_name (h->root.u.def.section->owner, 3931 ".rela.bss"); 3932 BFD_ASSERT (s != NULL); 3933 3934 rel.r_offset = (h->root.u.def.value 3935 + h->root.u.def.section->output_section->vma 3936 + h->root.u.def.section->output_offset); 3937 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64); 3938 rel.r_addend = 0; 3939 loc = s->contents; 3940 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 3941 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3942 } 3943 3944 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ 3945 if (strcmp (h->root.root.string, "_DYNAMIC") == 0 3946 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) 3947 sym->st_shndx = SHN_ABS; 3948 3949 return TRUE; 3950} 3951 3952/* Finish up the dynamic sections. */ 3953 3954static bfd_boolean 3955sh64_elf64_finish_dynamic_sections (bfd *output_bfd, 3956 struct bfd_link_info *info) 3957{ 3958 bfd *dynobj; 3959 asection *sgot; 3960 asection *sdyn; 3961 3962 dynobj = elf_hash_table (info)->dynobj; 3963 3964 sgot = bfd_get_section_by_name (dynobj, ".got.plt"); 3965 BFD_ASSERT (sgot != NULL); 3966 sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); 3967 3968 if (elf_hash_table (info)->dynamic_sections_created) 3969 { 3970 asection *splt; 3971 Elf64_External_Dyn *dyncon, *dynconend; 3972 3973 BFD_ASSERT (sdyn != NULL); 3974 3975 dyncon = (Elf64_External_Dyn *) sdyn->contents; 3976 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); 3977 for (; dyncon < dynconend; dyncon++) 3978 { 3979 Elf_Internal_Dyn dyn; 3980 const char *name; 3981 asection *s; 3982 struct elf_link_hash_entry *h; 3983 3984 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); 3985 3986 switch (dyn.d_tag) 3987 { 3988 default: 3989 break; 3990 3991 case DT_INIT: 3992 name = info->init_function; 3993 goto get_sym; 3994 3995 case DT_FINI: 3996 name = info->fini_function; 3997 get_sym: 3998 if (dyn.d_un.d_val != 0) 3999 { 4000 h = elf_link_hash_lookup (elf_hash_table (info), name, 4001 FALSE, FALSE, TRUE); 4002 if (h != NULL && (h->other & STO_SH5_ISA32)) 4003 { 4004 dyn.d_un.d_val |= 1; 4005 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4006 } 4007 } 4008 break; 4009 4010 case DT_PLTGOT: 4011 name = ".got"; 4012 goto get_vma; 4013 4014 case DT_JMPREL: 4015 name = ".rela.plt"; 4016 get_vma: 4017 s = bfd_get_section_by_name (output_bfd, name); 4018 BFD_ASSERT (s != NULL); 4019 dyn.d_un.d_ptr = s->vma; 4020 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4021 break; 4022 4023 case DT_PLTRELSZ: 4024 s = bfd_get_section_by_name (output_bfd, ".rela.plt"); 4025 BFD_ASSERT (s != NULL); 4026 dyn.d_un.d_val = s->size; 4027 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4028 break; 4029 4030 case DT_RELASZ: 4031 /* My reading of the SVR4 ABI indicates that the 4032 procedure linkage table relocs (DT_JMPREL) should be 4033 included in the overall relocs (DT_RELA). This is 4034 what Solaris does. However, UnixWare can not handle 4035 that case. Therefore, we override the DT_RELASZ entry 4036 here to make it not include the JMPREL relocs. Since 4037 the linker script arranges for .rela.plt to follow all 4038 other relocation sections, we don't have to worry 4039 about changing the DT_RELA entry. */ 4040 s = bfd_get_section_by_name (output_bfd, ".rela.plt"); 4041 if (s != NULL) 4042 dyn.d_un.d_val -= s->size; 4043 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4044 break; 4045 } 4046 } 4047 4048 /* Fill in the first entry in the procedure linkage table. */ 4049 splt = bfd_get_section_by_name (dynobj, ".plt"); 4050 if (splt && splt->size > 0) 4051 { 4052 if (info->shared) 4053 { 4054 if (elf_sh64_pic_plt_entry == NULL) 4055 { 4056 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 4057 elf_sh64_pic_plt_entry_be : 4058 elf_sh64_pic_plt_entry_le); 4059 } 4060 memcpy (splt->contents, elf_sh64_pic_plt_entry, 4061 elf_sh64_sizeof_plt (info)); 4062 } 4063 else 4064 { 4065 if (elf_sh64_plt0_entry == NULL) 4066 { 4067 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ? 4068 elf_sh64_plt0_entry_be : 4069 elf_sh64_plt0_entry_le); 4070 } 4071 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE); 4072 movi_3shori_putval (output_bfd, 4073 sgot->output_section->vma 4074 + sgot->output_offset, 4075 splt->contents 4076 + elf_sh64_plt0_gotplt_offset (info)); 4077 } 4078 4079 /* UnixWare sets the entsize of .plt to 8, although that doesn't 4080 really seem like the right value. */ 4081 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8; 4082 } 4083 } 4084 4085 /* Fill in the first three entries in the global offset table. */ 4086 if (sgot->size > 0) 4087 { 4088 if (sdyn == NULL) 4089 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); 4090 else 4091 bfd_put_64 (output_bfd, 4092 sdyn->output_section->vma + sdyn->output_offset, 4093 sgot->contents); 4094 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8); 4095 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16); 4096 } 4097 4098 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; 4099 4100 return TRUE; 4101} 4102 4103/* Merge non visibility st_other attribute when the symbol comes from 4104 a dynamic object. */ 4105static void 4106sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h, 4107 const Elf_Internal_Sym *isym, 4108 bfd_boolean definition, 4109 bfd_boolean dynamic) 4110{ 4111 if (isym->st_other != 0 && dynamic) 4112 { 4113 unsigned char other; 4114 4115 /* Take the balance of OTHER from the definition. */ 4116 other = (definition ? isym->st_other : h->other); 4117 other &= ~ ELF_ST_VISIBILITY (-1); 4118 h->other = other | ELF_ST_VISIBILITY (h->other); 4119 } 4120 4121 return; 4122} 4123 4124static struct bfd_elf_special_section const sh64_elf64_special_sections[]= 4125{ 4126 { ".cranges", 8, 0, SHT_PROGBITS, 0 }, 4127 { NULL, 0, 0, 0, 0 } 4128}; 4129 4130#define TARGET_BIG_SYM bfd_elf64_sh64_vec 4131#define TARGET_BIG_NAME "elf64-sh64" 4132#define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec 4133#define TARGET_LITTLE_NAME "elf64-sh64l" 4134#define ELF_ARCH bfd_arch_sh 4135#define ELF_MACHINE_CODE EM_SH 4136#define ELF_MAXPAGESIZE 128 4137 4138#define elf_symbol_leading_char '_' 4139 4140#define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup 4141#define elf_info_to_howto sh_elf64_info_to_howto 4142 4143/* Note: there's no relaxation at present. */ 4144 4145#define elf_backend_relocate_section sh_elf64_relocate_section 4146#define bfd_elf64_bfd_get_relocated_section_contents \ 4147 sh_elf64_get_relocated_section_contents 4148#define elf_backend_object_p sh_elf64_set_mach_from_flags 4149#define bfd_elf64_bfd_set_private_flags \ 4150 sh_elf64_set_private_flags 4151#define bfd_elf64_bfd_copy_private_bfd_data \ 4152 sh_elf64_copy_private_data 4153#define bfd_elf64_bfd_merge_private_bfd_data \ 4154 sh_elf64_merge_private_data 4155#define elf_backend_fake_sections sh64_elf64_fake_sections 4156 4157#define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook 4158#define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook 4159#define elf_backend_check_relocs sh_elf64_check_relocs 4160 4161#define elf_backend_can_gc_sections 1 4162 4163#define elf_backend_get_symbol_type sh64_elf64_get_symbol_type 4164 4165#define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook 4166 4167#define elf_backend_link_output_symbol_hook \ 4168 sh64_elf64_link_output_symbol_hook 4169 4170#define elf_backend_merge_symbol_attribute \ 4171 sh64_elf64_merge_symbol_attribute 4172 4173#define elf_backend_final_write_processing \ 4174 sh64_elf64_final_write_processing 4175 4176#define elf_backend_create_dynamic_sections \ 4177 sh64_elf64_create_dynamic_sections 4178#define bfd_elf64_bfd_link_hash_table_create \ 4179 sh64_elf64_link_hash_table_create 4180#define elf_backend_adjust_dynamic_symbol \ 4181 sh64_elf64_adjust_dynamic_symbol 4182#define elf_backend_size_dynamic_sections \ 4183 sh64_elf64_size_dynamic_sections 4184#define elf_backend_finish_dynamic_symbol \ 4185 sh64_elf64_finish_dynamic_symbol 4186#define elf_backend_finish_dynamic_sections \ 4187 sh64_elf64_finish_dynamic_sections 4188#define elf_backend_special_sections sh64_elf64_special_sections 4189 4190#define elf_backend_want_got_plt 1 4191#define elf_backend_plt_readonly 1 4192#define elf_backend_want_plt_sym 0 4193#define elf_backend_got_header_size 24 4194 4195#include "elf64-target.h" 4196 4197/* NetBSD support. */ 4198#undef TARGET_BIG_SYM 4199#define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec 4200#undef TARGET_BIG_NAME 4201#define TARGET_BIG_NAME "elf64-sh64-nbsd" 4202#undef TARGET_LITTLE_SYM 4203#define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec 4204#undef TARGET_LITTLE_NAME 4205#define TARGET_LITTLE_NAME "elf64-sh64l-nbsd" 4206#undef ELF_MAXPAGESIZE 4207#define ELF_MAXPAGESIZE 0x10000 4208#undef elf_symbol_leading_char 4209#define elf_symbol_leading_char 0 4210 4211#define elf64_bed elf64_sh64_nbsd_bed 4212 4213#include "elf64-target.h" 4214 4215/* Linux support. */ 4216#undef TARGET_BIG_SYM 4217#define TARGET_BIG_SYM bfd_elf64_sh64blin_vec 4218#undef TARGET_BIG_NAME 4219#define TARGET_BIG_NAME "elf64-sh64big-linux" 4220#undef TARGET_LITTLE_SYM 4221#define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec 4222#undef TARGET_LITTLE_NAME 4223#define TARGET_LITTLE_NAME "elf64-sh64-linux" 4224 4225#define INCLUDED_TARGET_FILE 4226#include "elf64-target.h" 4227