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 (_("%s(%s+0x%lx): %s relocation against SEC_MERGE section"), 1597 bfd_archive_filename (input_bfd), 1598 bfd_get_section_name (input_bfd, input_section), 1599 (long) rel->r_offset, howto->name); 1600 return FALSE; 1601 } 1602 1603 addend = bfd_get_32 (input_bfd, contents + rel->r_offset); 1604 msec = sec; 1605 addend = 1606 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) 1607 - relocation; 1608 addend += msec->output_section->vma + msec->output_offset; 1609 bfd_put_32 (input_bfd, addend, contents + rel->r_offset); 1610 addend = 0; 1611 } 1612 } 1613 else 1614 { 1615 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */ 1616 1617 /* Section symbols are never (?) placed in the hash table, so 1618 we can just ignore hash relocations when creating a 1619 relocatable object file. */ 1620 if (info->relocatable) 1621 continue; 1622 1623 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 1624 while (h->root.type == bfd_link_hash_indirect 1625 || h->root.type == bfd_link_hash_warning) 1626 { 1627 /* If the reference passes a symbol marked with 1628 STT_DATALABEL, then any STO_SH5_ISA32 on the final value 1629 doesn't count. */ 1630 seen_stt_datalabel |= h->type == STT_DATALABEL; 1631 h = (struct elf_link_hash_entry *) h->root.u.i.link; 1632 } 1633 1634 if (h->root.type == bfd_link_hash_defined 1635 || h->root.type == bfd_link_hash_defweak) 1636 { 1637 sec = h->root.u.def.section; 1638 /* In these cases, we don't need the relocation value. 1639 We check specially because in some obscure cases 1640 sec->output_section will be NULL. */ 1641 if (r_type == R_SH_GOTPC_LOW16 1642 || r_type == R_SH_GOTPC_MEDLOW16 1643 || r_type == R_SH_GOTPC_MEDHI16 1644 || r_type == R_SH_GOTPC_HI16 1645 || ((r_type == R_SH_PLT_LOW16 1646 || r_type == R_SH_PLT_MEDLOW16 1647 || r_type == R_SH_PLT_MEDHI16 1648 || r_type == R_SH_PLT_HI16) 1649 && h->plt.offset != (bfd_vma) -1) 1650 || ((r_type == R_SH_GOT_LOW16 1651 || r_type == R_SH_GOT_MEDLOW16 1652 || r_type == R_SH_GOT_MEDHI16 1653 || r_type == R_SH_GOT_HI16) 1654 && elf_hash_table (info)->dynamic_sections_created 1655 && (! info->shared 1656 || (! info->symbolic && h->dynindx != -1) 1657 || (h->elf_link_hash_flags 1658 & ELF_LINK_HASH_DEF_REGULAR) == 0)) 1659 /* The cases above are those in which relocation is 1660 overwritten in the switch block below. The cases 1661 below are those in which we must defer relocation 1662 to run-time, because we can't resolve absolute 1663 addresses when creating a shared library. */ 1664 || (info->shared 1665 && ((! info->symbolic && h->dynindx != -1) 1666 || (h->elf_link_hash_flags 1667 & ELF_LINK_HASH_DEF_REGULAR) == 0) 1668 && ((r_type == R_SH_64 1669 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1670 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)) 1671 || r_type == R_SH_64_PCREL) 1672 && ((input_section->flags & SEC_ALLOC) != 0 1673 /* DWARF will emit R_SH_DIR32 relocations in its 1674 sections against symbols defined externally 1675 in shared libraries. We can't do anything 1676 with them here. */ 1677 || (input_section->flags & SEC_DEBUGGING) != 0)) 1678 /* Dynamic relocs are not propagated for SEC_DEBUGGING 1679 sections because such sections are not SEC_ALLOC and 1680 thus ld.so will not process them. */ 1681 || (sec->output_section == NULL 1682 && ((input_section->flags & SEC_DEBUGGING) != 0 1683 && (h->elf_link_hash_flags 1684 & ELF_LINK_HASH_DEF_DYNAMIC) != 0))) 1685 relocation = 0; 1686 else if (sec->output_section == NULL) 1687 { 1688 (*_bfd_error_handler) 1689 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"), 1690 bfd_get_filename (input_bfd), h->root.root.string, 1691 bfd_get_section_name (input_bfd, input_section)); 1692 relocation = 0; 1693 } 1694 else 1695 relocation = ((h->root.u.def.value 1696 + sec->output_section->vma 1697 + sec->output_offset) 1698 /* A STO_SH5_ISA32 causes a "bitor 1" to the 1699 symbol value, unless we've seen 1700 STT_DATALABEL on the way to it. */ 1701 | ((h->other & STO_SH5_ISA32) != 0 1702 && ! seen_stt_datalabel)); 1703 } 1704 else if (h->root.type == bfd_link_hash_undefweak) 1705 relocation = 0; 1706 else if (info->unresolved_syms_in_objects == RM_IGNORE 1707 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) 1708 relocation = 0; 1709 else 1710 { 1711 if (! ((*info->callbacks->undefined_symbol) 1712 (info, h->root.root.string, input_bfd, 1713 input_section, rel->r_offset, 1714 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR 1715 || ELF_ST_VISIBILITY (h->other))))) 1716 return FALSE; 1717 relocation = 0; 1718 } 1719 } 1720 1721 disp = (relocation 1722 - input_section->output_section->vma 1723 - input_section->output_offset 1724 - rel->r_offset); 1725 dropped = 0; 1726 switch ((int)r_type) 1727 { 1728 case R_SH_PT_16: dropped = disp & 2; break; 1729 case R_SH_DIR10SW: dropped = disp & 1; break; 1730 case R_SH_DIR10SL: dropped = disp & 3; break; 1731 case R_SH_DIR10SQ: dropped = disp & 7; break; 1732 } 1733 if (dropped != 0) 1734 { 1735 (*_bfd_error_handler) 1736 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"), 1737 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation); 1738 bfd_set_error (bfd_error_bad_value); 1739 return FALSE; 1740 } 1741 switch ((int)r_type) 1742 { 1743 case R_SH_64: 1744 case R_SH_64_PCREL: 1745 if (info->shared 1746 && (input_section->flags & SEC_ALLOC) != 0 1747 && (r_type != R_SH_64_PCREL 1748 || (h != NULL 1749 && h->dynindx != -1 1750 && (! info->symbolic 1751 || (h->elf_link_hash_flags 1752 & ELF_LINK_HASH_DEF_REGULAR) == 0)))) 1753 { 1754 Elf_Internal_Rela outrel; 1755 bfd_byte *loc; 1756 bfd_boolean skip, relocate; 1757 1758 /* When generating a shared object, these relocations 1759 are copied into the output file to be resolved at run 1760 time. */ 1761 1762 if (sreloc == NULL) 1763 { 1764 const char *name; 1765 1766 name = (bfd_elf_string_from_elf_section 1767 (input_bfd, 1768 elf_elfheader (input_bfd)->e_shstrndx, 1769 elf_section_data (input_section)->rel_hdr.sh_name)); 1770 if (name == NULL) 1771 return FALSE; 1772 1773 BFD_ASSERT (strncmp (name, ".rela", 5) == 0 1774 && strcmp (bfd_get_section_name (input_bfd, 1775 input_section), 1776 name + 5) == 0); 1777 1778 sreloc = bfd_get_section_by_name (dynobj, name); 1779 BFD_ASSERT (sreloc != NULL); 1780 } 1781 1782 skip = FALSE; 1783 relocate = FALSE; 1784 1785 outrel.r_offset 1786 = _bfd_elf_section_offset (output_bfd, info, 1787 input_section, rel->r_offset); 1788 1789 if (outrel.r_offset == (bfd_vma) -1) 1790 skip = TRUE; 1791 else if (outrel.r_offset == (bfd_vma) -2) 1792 skip = TRUE, relocate = TRUE; 1793 1794 outrel.r_offset += (input_section->output_section->vma 1795 + input_section->output_offset); 1796 1797 if (skip) 1798 memset (&outrel, 0, sizeof outrel); 1799 else if (r_type == R_SH_64_PCREL) 1800 { 1801 BFD_ASSERT (h != NULL && h->dynindx != -1); 1802 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL); 1803 outrel.r_addend = rel->r_addend; 1804 } 1805 else 1806 { 1807 /* h->dynindx may be -1 if this symbol was marked to 1808 become local. */ 1809 if (h == NULL 1810 || ((info->symbolic || h->dynindx == -1) 1811 && (h->elf_link_hash_flags 1812 & ELF_LINK_HASH_DEF_REGULAR) != 0)) 1813 { 1814 relocate = TRUE; 1815 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1816 outrel.r_addend = relocation + rel->r_addend; 1817 } 1818 else 1819 { 1820 BFD_ASSERT (h->dynindx != -1); 1821 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64); 1822 outrel.r_addend = relocation + rel->r_addend; 1823 } 1824 } 1825 1826 loc = sreloc->contents; 1827 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); 1828 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1829 1830 /* If this reloc is against an external symbol, we do 1831 not want to fiddle with the addend. Otherwise, we 1832 need to include the symbol value so that it becomes 1833 an addend for the dynamic reloc. */ 1834 if (! relocate) 1835 continue; 1836 } 1837 else if (r_type == R_SH_64) 1838 addend = rel->r_addend; 1839 goto final_link_relocate; 1840 1841 case R_SH_GOTPLT_LOW16: 1842 case R_SH_GOTPLT_MEDLOW16: 1843 case R_SH_GOTPLT_MEDHI16: 1844 case R_SH_GOTPLT_HI16: 1845 case R_SH_GOTPLT10BY4: 1846 case R_SH_GOTPLT10BY8: 1847 /* Relocation is to the entry for this symbol in the 1848 procedure linkage table. */ 1849 1850 if (h == NULL 1851 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1852 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 1853 || ! info->shared 1854 || info->symbolic 1855 || h->dynindx == -1 1856 || h->plt.offset == (bfd_vma) -1 1857 || h->got.offset != (bfd_vma) -1) 1858 goto force_got; 1859 1860 /* Relocation is to the entry for this symbol in the global 1861 offset table extension for the procedure linkage table. */ 1862 if (sgotplt == NULL) 1863 { 1864 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); 1865 BFD_ASSERT (sgotplt != NULL); 1866 } 1867 1868 relocation = (sgotplt->output_offset 1869 + ((h->plt.offset / elf_sh64_sizeof_plt (info) 1870 - 1 + 3) * 8)); 1871 1872 relocation -= GOT_BIAS; 1873 1874 goto final_link_relocate; 1875 1876 force_got: 1877 case R_SH_GOT_LOW16: 1878 case R_SH_GOT_MEDLOW16: 1879 case R_SH_GOT_MEDHI16: 1880 case R_SH_GOT_HI16: 1881 case R_SH_GOT10BY4: 1882 case R_SH_GOT10BY8: 1883 /* Relocation is to the entry for this symbol in the global 1884 offset table. */ 1885 if (sgot == NULL) 1886 { 1887 sgot = bfd_get_section_by_name (dynobj, ".got"); 1888 BFD_ASSERT (sgot != NULL); 1889 } 1890 1891 if (h != NULL) 1892 { 1893 bfd_vma off; 1894 1895 off = h->got.offset; 1896 if (seen_stt_datalabel) 1897 { 1898 struct elf_sh64_link_hash_entry *hsh; 1899 1900 hsh = (struct elf_sh64_link_hash_entry *)h; 1901 off = hsh->datalabel_got_offset; 1902 } 1903 BFD_ASSERT (off != (bfd_vma) -1); 1904 1905 if (! elf_hash_table (info)->dynamic_sections_created 1906 || (info->shared 1907 && (info->symbolic || h->dynindx == -1 1908 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 1909 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 1910 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) 1911 { 1912 /* This is actually a static link, or it is a 1913 -Bsymbolic link and the symbol is defined 1914 locally, or the symbol was forced to be local 1915 because of a version file. We must initialize 1916 this entry in the global offset table. Since the 1917 offset must always be a multiple of 4, we use the 1918 least significant bit to record whether we have 1919 initialized it already. 1920 1921 When doing a dynamic link, we create a .rela.got 1922 relocation entry to initialize the value. This 1923 is done in the finish_dynamic_symbol routine. */ 1924 if ((off & 1) != 0) 1925 off &= ~1; 1926 else 1927 { 1928 bfd_put_64 (output_bfd, relocation, 1929 sgot->contents + off); 1930 if (seen_stt_datalabel) 1931 { 1932 struct elf_sh64_link_hash_entry *hsh; 1933 1934 hsh = (struct elf_sh64_link_hash_entry *)h; 1935 hsh->datalabel_got_offset |= 1; 1936 } 1937 else 1938 h->got.offset |= 1; 1939 } 1940 } 1941 1942 relocation = sgot->output_offset + off; 1943 } 1944 else 1945 { 1946 bfd_vma off; 1947 1948 if (rel->r_addend) 1949 { 1950 BFD_ASSERT (local_got_offsets != NULL 1951 && (local_got_offsets[symtab_hdr->sh_info 1952 + r_symndx] 1953 != (bfd_vma) -1)); 1954 1955 off = local_got_offsets[symtab_hdr->sh_info 1956 + r_symndx]; 1957 } 1958 else 1959 { 1960 BFD_ASSERT (local_got_offsets != NULL 1961 && local_got_offsets[r_symndx] != (bfd_vma) -1); 1962 1963 off = local_got_offsets[r_symndx]; 1964 } 1965 1966 /* The offset must always be a multiple of 8. We use 1967 the least significant bit to record whether we have 1968 already generated the necessary reloc. */ 1969 if ((off & 1) != 0) 1970 off &= ~1; 1971 else 1972 { 1973 bfd_put_64 (output_bfd, relocation, sgot->contents + off); 1974 1975 if (info->shared) 1976 { 1977 asection *s; 1978 Elf_Internal_Rela outrel; 1979 bfd_byte *loc; 1980 1981 s = bfd_get_section_by_name (dynobj, ".rela.got"); 1982 BFD_ASSERT (s != NULL); 1983 1984 outrel.r_offset = (sgot->output_section->vma 1985 + sgot->output_offset 1986 + off); 1987 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 1988 outrel.r_addend = relocation; 1989 loc = s->contents; 1990 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 1991 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); 1992 } 1993 1994 if (rel->r_addend) 1995 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1; 1996 else 1997 local_got_offsets[r_symndx] |= 1; 1998 } 1999 2000 relocation = sgot->output_offset + off; 2001 } 2002 2003 relocation -= GOT_BIAS; 2004 2005 goto final_link_relocate; 2006 2007 case R_SH_GOTOFF_LOW16: 2008 case R_SH_GOTOFF_MEDLOW16: 2009 case R_SH_GOTOFF_MEDHI16: 2010 case R_SH_GOTOFF_HI16: 2011 /* Relocation is relative to the start of the global offset 2012 table. */ 2013 2014 if (sgot == NULL) 2015 { 2016 sgot = bfd_get_section_by_name (dynobj, ".got"); 2017 BFD_ASSERT (sgot != NULL); 2018 } 2019 2020 /* Note that sgot->output_offset is not involved in this 2021 calculation. We always want the start of .got. If we 2022 defined _GLOBAL_OFFSET_TABLE in a different way, as is 2023 permitted by the ABI, we might have to change this 2024 calculation. */ 2025 relocation -= sgot->output_section->vma; 2026 2027 relocation -= GOT_BIAS; 2028 2029 addend = rel->r_addend; 2030 2031 goto final_link_relocate; 2032 2033 case R_SH_GOTPC_LOW16: 2034 case R_SH_GOTPC_MEDLOW16: 2035 case R_SH_GOTPC_MEDHI16: 2036 case R_SH_GOTPC_HI16: 2037 /* Use global offset table as symbol value. */ 2038 2039 if (sgot == NULL) 2040 { 2041 sgot = bfd_get_section_by_name (dynobj, ".got"); 2042 BFD_ASSERT (sgot != NULL); 2043 } 2044 2045 relocation = sgot->output_section->vma; 2046 2047 relocation += GOT_BIAS; 2048 2049 addend = rel->r_addend; 2050 2051 goto final_link_relocate; 2052 2053 case R_SH_PLT_LOW16: 2054 case R_SH_PLT_MEDLOW16: 2055 case R_SH_PLT_MEDHI16: 2056 case R_SH_PLT_HI16: 2057 /* Relocation is to the entry for this symbol in the 2058 procedure linkage table. */ 2059 2060 /* Resolve a PLT reloc against a local symbol directly, 2061 without using the procedure linkage table. */ 2062 if (h == NULL) 2063 goto final_link_relocate; 2064 2065 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2066 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 2067 goto final_link_relocate; 2068 2069 if (h->plt.offset == (bfd_vma) -1) 2070 { 2071 /* We didn't make a PLT entry for this symbol. This 2072 happens when statically linking PIC code, or when 2073 using -Bsymbolic. */ 2074 goto final_link_relocate; 2075 } 2076 2077 if (splt == NULL) 2078 { 2079 splt = bfd_get_section_by_name (dynobj, ".plt"); 2080 BFD_ASSERT (splt != NULL); 2081 } 2082 2083 relocation = (splt->output_section->vma 2084 + splt->output_offset 2085 + h->plt.offset); 2086 relocation++; 2087 2088 addend = rel->r_addend; 2089 2090 goto final_link_relocate; 2091 2092 case R_SH_DIR32: 2093 case R_SH_SHMEDIA_CODE: 2094 case R_SH_PT_16: 2095 case R_SH_DIR5U: 2096 case R_SH_DIR6S: 2097 case R_SH_DIR6U: 2098 case R_SH_DIR10S: 2099 case R_SH_DIR10SW: 2100 case R_SH_DIR10SL: 2101 case R_SH_DIR10SQ: 2102 case R_SH_IMMS16: 2103 case R_SH_IMMU16: 2104 case R_SH_IMM_LOW16: 2105 case R_SH_IMM_LOW16_PCREL: 2106 case R_SH_IMM_MEDLOW16: 2107 case R_SH_IMM_MEDLOW16_PCREL: 2108 case R_SH_IMM_MEDHI16: 2109 case R_SH_IMM_MEDHI16_PCREL: 2110 case R_SH_IMM_HI16: 2111 case R_SH_IMM_HI16_PCREL: 2112 addend = rel->r_addend; 2113 /* Fall through. */ 2114 case R_SH_REL32: 2115 final_link_relocate: 2116 r = _bfd_final_link_relocate (howto, input_bfd, input_section, 2117 contents, rel->r_offset, 2118 relocation, addend); 2119 break; 2120 2121 default: 2122 bfd_set_error (bfd_error_bad_value); 2123 return FALSE; 2124 2125 } 2126 2127 if (r != bfd_reloc_ok) 2128 { 2129 switch (r) 2130 { 2131 default: 2132 case bfd_reloc_outofrange: 2133 abort (); 2134 case bfd_reloc_overflow: 2135 { 2136 const char *name; 2137 2138 if (h != NULL) 2139 name = h->root.root.string; 2140 else 2141 { 2142 name = (bfd_elf_string_from_elf_section 2143 (input_bfd, symtab_hdr->sh_link, sym->st_name)); 2144 if (name == NULL) 2145 return FALSE; 2146 if (*name == '\0') 2147 name = bfd_section_name (input_bfd, sec); 2148 } 2149 if (! ((*info->callbacks->reloc_overflow) 2150 (info, name, howto->name, (bfd_vma) 0, 2151 input_bfd, input_section, rel->r_offset))) 2152 return FALSE; 2153 } 2154 break; 2155 } 2156 } 2157 } 2158 2159 return TRUE; 2160} 2161 2162/* This is a version of bfd_generic_get_relocated_section_contents 2163 that uses sh_elf64_relocate_section. 2164 2165 See sh_elf_relocate_section in elf32-sh.c for the original. */ 2166 2167static bfd_byte * 2168sh_elf64_get_relocated_section_contents (bfd *output_bfd, 2169 struct bfd_link_info *link_info, 2170 struct bfd_link_order *link_order, 2171 bfd_byte *data, 2172 bfd_boolean relocatable, 2173 asymbol **symbols) 2174{ 2175 Elf_Internal_Shdr *symtab_hdr; 2176 asection *input_section = link_order->u.indirect.section; 2177 bfd *input_bfd = input_section->owner; 2178 asection **sections = NULL; 2179 Elf_Internal_Rela *internal_relocs = NULL; 2180 Elf_Internal_Sym *isymbuf = NULL; 2181 2182 /* We only need to handle the case of relaxing, or of having a 2183 particular set of section contents, specially. */ 2184 if (relocatable 2185 || elf_section_data (input_section)->this_hdr.contents == NULL) 2186 return bfd_generic_get_relocated_section_contents (output_bfd, link_info, 2187 link_order, data, 2188 relocatable, 2189 symbols); 2190 2191 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 2192 2193 memcpy (data, elf_section_data (input_section)->this_hdr.contents, 2194 input_section->_raw_size); 2195 2196 if ((input_section->flags & SEC_RELOC) != 0 2197 && input_section->reloc_count > 0) 2198 { 2199 Elf_Internal_Sym *isymp; 2200 Elf_Internal_Sym *isymend; 2201 asection **secpp; 2202 2203 /* Read this BFD's local symbols. */ 2204 if (symtab_hdr->sh_info != 0) 2205 { 2206 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; 2207 if (isymbuf == NULL) 2208 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, 2209 symtab_hdr->sh_info, 0, 2210 NULL, NULL, NULL); 2211 if (isymbuf == NULL) 2212 goto error_return; 2213 } 2214 2215 internal_relocs = (_bfd_elf_link_read_relocs 2216 (input_bfd, input_section, NULL, 2217 (Elf_Internal_Rela *) NULL, FALSE)); 2218 if (internal_relocs == NULL) 2219 goto error_return; 2220 2221 sections = (asection **) bfd_malloc (symtab_hdr->sh_info 2222 * sizeof (asection *)); 2223 if (sections == NULL && symtab_hdr->sh_info > 0) 2224 goto error_return; 2225 2226 secpp = sections; 2227 isymend = isymbuf + symtab_hdr->sh_info; 2228 for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp) 2229 { 2230 asection *isec; 2231 2232 if (isymp->st_shndx == SHN_UNDEF) 2233 isec = bfd_und_section_ptr; 2234 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE) 2235 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); 2236 else if (isymp->st_shndx == SHN_ABS) 2237 isec = bfd_abs_section_ptr; 2238 else if (isymp->st_shndx == SHN_COMMON) 2239 isec = bfd_com_section_ptr; 2240 else 2241 { 2242 /* Who knows? */ 2243 isec = NULL; 2244 } 2245 2246 *secpp = isec; 2247 } 2248 2249 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd, 2250 input_section, data, internal_relocs, 2251 isymbuf, sections)) 2252 goto error_return; 2253 2254 if (sections != NULL) 2255 free (sections); 2256 if (internal_relocs != elf_section_data (input_section)->relocs) 2257 free (internal_relocs); 2258 if (isymbuf != NULL 2259 && (unsigned char *) isymbuf != symtab_hdr->contents) 2260 free (isymbuf); 2261 } 2262 2263 return data; 2264 2265 error_return: 2266 if (sections != NULL) 2267 free (sections); 2268 if (internal_relocs != NULL 2269 && internal_relocs != elf_section_data (input_section)->relocs) 2270 free (internal_relocs); 2271 if (isymbuf != NULL 2272 && (unsigned char *) isymbuf != symtab_hdr->contents) 2273 free (isymbuf); 2274 return NULL; 2275} 2276 2277/* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */ 2278 2279bfd_boolean 2280sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED, 2281 Elf_Internal_Shdr *elf_section_hdr, 2282 asection *asect) 2283{ 2284 /* Code sections can only contain SH64 code, so mark them as such. */ 2285 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE) 2286 elf_section_hdr->sh_flags |= SHF_SH5_ISA32; 2287 2288 return TRUE; 2289} 2290 2291static bfd_boolean 2292sh_elf64_set_mach_from_flags (bfd *abfd) 2293{ 2294 flagword flags = elf_elfheader (abfd)->e_flags; 2295 2296 switch (flags & EF_SH_MACH_MASK) 2297 { 2298 case EF_SH5: 2299 /* Just one, but keep the switch construct to make additions easy. */ 2300 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5); 2301 break; 2302 2303 default: 2304 bfd_set_error (bfd_error_wrong_format); 2305 return FALSE; 2306 } 2307 return TRUE; 2308} 2309 2310/* Function to keep SH64 specific file flags. 2311 2312 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */ 2313 2314static bfd_boolean 2315sh_elf64_set_private_flags (bfd *abfd, flagword flags) 2316{ 2317 BFD_ASSERT (! elf_flags_init (abfd) 2318 || elf_elfheader (abfd)->e_flags == flags); 2319 2320 elf_elfheader (abfd)->e_flags = flags; 2321 elf_flags_init (abfd) = TRUE; 2322 return sh_elf64_set_mach_from_flags (abfd); 2323} 2324 2325/* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with 2326 code, to keep attributes the same as for SHmedia in 32-bit ELF. */ 2327 2328static bfd_boolean 2329sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd) 2330{ 2331 Elf_Internal_Shdr **o_shdrp; 2332 asection *isec; 2333 asection *osec; 2334 2335 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2336 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2337 return TRUE; 2338 2339 o_shdrp = elf_elfsections (obfd); 2340 for (osec = obfd->sections; osec; osec = osec->next) 2341 { 2342 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx; 2343 for (isec = ibfd->sections; isec; isec = isec->next) 2344 { 2345 if (strcmp (osec->name, isec->name) == 0) 2346 { 2347 /* Note that we're not disallowing mixing data and code. */ 2348 if ((elf_section_data (isec)->this_hdr.sh_flags 2349 & SHF_SH5_ISA32) != 0) 2350 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32; 2351 break; 2352 } 2353 } 2354 } 2355 2356 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); 2357} 2358 2359static bfd_boolean 2360sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd) 2361{ 2362 return sh_elf64_copy_private_data_internal (ibfd, obfd); 2363} 2364 2365static bfd_boolean 2366sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd) 2367{ 2368 flagword old_flags, new_flags; 2369 2370 if (! _bfd_generic_verify_endian_match (ibfd, obfd)) 2371 return FALSE; 2372 2373 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour 2374 || bfd_get_flavour (obfd) != bfd_target_elf_flavour) 2375 return TRUE; 2376 2377 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd)) 2378 { 2379 const char *msg; 2380 2381 if (bfd_get_arch_size (ibfd) == 32 2382 && bfd_get_arch_size (obfd) == 64) 2383 msg = _("%s: compiled as 32-bit object and %s is 64-bit"); 2384 else if (bfd_get_arch_size (ibfd) == 64 2385 && bfd_get_arch_size (obfd) == 32) 2386 msg = _("%s: compiled as 64-bit object and %s is 32-bit"); 2387 else 2388 msg = _("%s: object size does not match that of target %s"); 2389 2390 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd), 2391 bfd_get_filename (obfd)); 2392 bfd_set_error (bfd_error_wrong_format); 2393 return FALSE; 2394 } 2395 2396 old_flags = elf_elfheader (obfd)->e_flags; 2397 new_flags = elf_elfheader (ibfd)->e_flags; 2398 if (! elf_flags_init (obfd)) 2399 { 2400 /* This happens when ld starts out with a 'blank' output file. */ 2401 elf_flags_init (obfd) = TRUE; 2402 elf_elfheader (obfd)->e_flags = old_flags = new_flags; 2403 } 2404 /* We don't allow linking in anything else than SH64 code, and since 2405 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code 2406 here as things change. */ 2407 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5) 2408 { 2409 (*_bfd_error_handler) 2410 ("%s: does not use the SH64 64-bit ABI as previous modules do", 2411 bfd_get_filename (ibfd)); 2412 bfd_set_error (bfd_error_bad_value); 2413 return FALSE; 2414 } 2415 2416 sh_elf64_copy_private_data_internal (ibfd, obfd); 2417 2418 /* I can't think of anything sane other than old_flags being EF_SH5 and 2419 that we need to preserve that. */ 2420 elf_elfheader (obfd)->e_flags = old_flags; 2421 2422 return sh_elf64_set_mach_from_flags (obfd); 2423} 2424 2425/* Return the section that should be marked against GC for a given 2426 relocation. */ 2427 2428static asection * 2429sh_elf64_gc_mark_hook (asection *sec, 2430 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2431 Elf_Internal_Rela *rel, 2432 struct elf_link_hash_entry *h, 2433 Elf_Internal_Sym *sym) 2434{ 2435 if (h != NULL) 2436 { 2437 switch (ELF64_R_TYPE (rel->r_info)) 2438 { 2439 case R_SH_GNU_VTINHERIT: 2440 case R_SH_GNU_VTENTRY: 2441 break; 2442 2443 default: 2444 while (h->root.type == bfd_link_hash_indirect 2445 && h->root.u.i.link) 2446 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2447 switch (h->root.type) 2448 { 2449 case bfd_link_hash_defined: 2450 case bfd_link_hash_defweak: 2451 return h->root.u.def.section; 2452 2453 case bfd_link_hash_common: 2454 return h->root.u.c.p->section; 2455 2456 default: 2457 break; 2458 } 2459 } 2460 } 2461 else 2462 return bfd_section_from_elf_index (sec->owner, sym->st_shndx); 2463 2464 return NULL; 2465} 2466 2467/* Update the got entry reference counts for the section being removed. */ 2468 2469static bfd_boolean 2470sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, 2471 struct bfd_link_info *info ATTRIBUTE_UNUSED, 2472 asection *sec ATTRIBUTE_UNUSED, 2473 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) 2474{ 2475 /* No got and plt entries for 64-bit SH at present. */ 2476 return TRUE; 2477} 2478 2479/* Look through the relocs for a section during the first phase. 2480 Since we don't do .gots or .plts, we just need to consider the 2481 virtual table relocs for gc. */ 2482 2483static bfd_boolean 2484sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info, 2485 asection *sec, const Elf_Internal_Rela *relocs) 2486{ 2487 Elf_Internal_Shdr *symtab_hdr; 2488 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; 2489 const Elf_Internal_Rela *rel; 2490 const Elf_Internal_Rela *rel_end; 2491 bfd *dynobj; 2492 bfd_vma *local_got_offsets; 2493 asection *sgot; 2494 asection *srelgot; 2495 asection *sreloc; 2496 2497 sgot = NULL; 2498 srelgot = NULL; 2499 sreloc = NULL; 2500 2501 if (info->relocatable) 2502 return TRUE; 2503 2504 symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 2505 sym_hashes = elf_sym_hashes (abfd); 2506 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym); 2507 if (!elf_bad_symtab (abfd)) 2508 sym_hashes_end -= symtab_hdr->sh_info; 2509 2510 dynobj = elf_hash_table (info)->dynobj; 2511 local_got_offsets = elf_local_got_offsets (abfd); 2512 2513 rel_end = relocs + sec->reloc_count; 2514 for (rel = relocs; rel < rel_end; rel++) 2515 { 2516 struct elf_link_hash_entry *h; 2517 unsigned long r_symndx; 2518 2519 r_symndx = ELF64_R_SYM (rel->r_info); 2520 if (r_symndx < symtab_hdr->sh_info) 2521 h = NULL; 2522 else 2523 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 2524 2525 /* Some relocs require a global offset table. */ 2526 if (dynobj == NULL) 2527 { 2528 switch (ELF64_R_TYPE (rel->r_info)) 2529 { 2530 case R_SH_GOTPLT_LOW16: 2531 case R_SH_GOTPLT_MEDLOW16: 2532 case R_SH_GOTPLT_MEDHI16: 2533 case R_SH_GOTPLT_HI16: 2534 case R_SH_GOTPLT10BY4: 2535 case R_SH_GOTPLT10BY8: 2536 case R_SH_GOT_LOW16: 2537 case R_SH_GOT_MEDLOW16: 2538 case R_SH_GOT_MEDHI16: 2539 case R_SH_GOT_HI16: 2540 case R_SH_GOT10BY4: 2541 case R_SH_GOT10BY8: 2542 case R_SH_GOTOFF_LOW16: 2543 case R_SH_GOTOFF_MEDLOW16: 2544 case R_SH_GOTOFF_MEDHI16: 2545 case R_SH_GOTOFF_HI16: 2546 case R_SH_GOTPC_LOW16: 2547 case R_SH_GOTPC_MEDLOW16: 2548 case R_SH_GOTPC_MEDHI16: 2549 case R_SH_GOTPC_HI16: 2550 elf_hash_table (info)->dynobj = dynobj = abfd; 2551 if (! _bfd_elf_create_got_section (dynobj, info)) 2552 return FALSE; 2553 break; 2554 2555 default: 2556 break; 2557 } 2558 } 2559 2560 switch (ELF64_R_TYPE (rel->r_info)) 2561 { 2562 /* This relocation describes the C++ object vtable hierarchy. 2563 Reconstruct it for later use during GC. */ 2564 case R_SH_GNU_VTINHERIT: 2565 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) 2566 return FALSE; 2567 break; 2568 2569 /* This relocation describes which C++ vtable entries are actually 2570 used. Record for later use during GC. */ 2571 case R_SH_GNU_VTENTRY: 2572 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) 2573 return FALSE; 2574 break; 2575 2576 force_got: 2577 case R_SH_GOT_LOW16: 2578 case R_SH_GOT_MEDLOW16: 2579 case R_SH_GOT_MEDHI16: 2580 case R_SH_GOT_HI16: 2581 case R_SH_GOT10BY4: 2582 case R_SH_GOT10BY8: 2583 /* This symbol requires a global offset table entry. */ 2584 2585 if (sgot == NULL) 2586 { 2587 sgot = bfd_get_section_by_name (dynobj, ".got"); 2588 BFD_ASSERT (sgot != NULL); 2589 } 2590 2591 if (srelgot == NULL 2592 && (h != NULL || info->shared)) 2593 { 2594 srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); 2595 if (srelgot == NULL) 2596 { 2597 srelgot = bfd_make_section (dynobj, ".rela.got"); 2598 if (srelgot == NULL 2599 || ! bfd_set_section_flags (dynobj, srelgot, 2600 (SEC_ALLOC 2601 | SEC_LOAD 2602 | SEC_HAS_CONTENTS 2603 | SEC_IN_MEMORY 2604 | SEC_LINKER_CREATED 2605 | SEC_READONLY)) 2606 || ! bfd_set_section_alignment (dynobj, srelgot, 2)) 2607 return FALSE; 2608 } 2609 } 2610 2611 if (h != NULL) 2612 { 2613 if (h->type == STT_DATALABEL) 2614 { 2615 struct elf_sh64_link_hash_entry *hsh; 2616 2617 h = (struct elf_link_hash_entry *) h->root.u.i.link; 2618 hsh = (struct elf_sh64_link_hash_entry *)h; 2619 if (hsh->datalabel_got_offset != (bfd_vma) -1) 2620 break; 2621 2622 hsh->datalabel_got_offset = sgot->_raw_size; 2623 } 2624 else 2625 { 2626 if (h->got.offset != (bfd_vma) -1) 2627 { 2628 /* We have already allocated space in the .got. */ 2629 break; 2630 } 2631 h->got.offset = sgot->_raw_size; 2632 } 2633 2634 /* Make sure this symbol is output as a dynamic symbol. */ 2635 if (h->dynindx == -1) 2636 { 2637 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2638 return FALSE; 2639 } 2640 2641 srelgot->_raw_size += sizeof (Elf64_External_Rela); 2642 } 2643 else 2644 { 2645 /* This is a global offset table entry for a local 2646 symbol. */ 2647 if (local_got_offsets == NULL) 2648 { 2649 size_t size; 2650 register unsigned int i; 2651 2652 size = symtab_hdr->sh_info * sizeof (bfd_vma); 2653 /* Reserve space for both the datalabel and 2654 codelabel local GOT offsets. */ 2655 size *= 2; 2656 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); 2657 if (local_got_offsets == NULL) 2658 return FALSE; 2659 elf_local_got_offsets (abfd) = local_got_offsets; 2660 for (i = 0; i < symtab_hdr->sh_info; i++) 2661 local_got_offsets[i] = (bfd_vma) -1; 2662 for (; i < 2 * symtab_hdr->sh_info; i++) 2663 local_got_offsets[i] = (bfd_vma) -1; 2664 } 2665 if ((rel->r_addend & 1) != 0) 2666 { 2667 if (local_got_offsets[symtab_hdr->sh_info 2668 + r_symndx] != (bfd_vma) -1) 2669 { 2670 /* We have already allocated space in the .got. */ 2671 break; 2672 } 2673 local_got_offsets[symtab_hdr->sh_info 2674 + r_symndx] = sgot->_raw_size; 2675 } 2676 else 2677 { 2678 if (local_got_offsets[r_symndx] != (bfd_vma) -1) 2679 { 2680 /* We have already allocated space in the .got. */ 2681 break; 2682 } 2683 local_got_offsets[r_symndx] = sgot->_raw_size; 2684 } 2685 2686 if (info->shared) 2687 { 2688 /* If we are generating a shared object, we need to 2689 output a R_SH_RELATIVE reloc so that the dynamic 2690 linker can adjust this GOT entry. */ 2691 srelgot->_raw_size += sizeof (Elf64_External_Rela); 2692 } 2693 } 2694 2695 sgot->_raw_size += 8; 2696 2697 break; 2698 2699 case R_SH_GOTPLT_LOW16: 2700 case R_SH_GOTPLT_MEDLOW16: 2701 case R_SH_GOTPLT_MEDHI16: 2702 case R_SH_GOTPLT_HI16: 2703 case R_SH_GOTPLT10BY4: 2704 case R_SH_GOTPLT10BY8: 2705 /* If this is a local symbol, we resolve it directly without 2706 creating a procedure linkage table entry. */ 2707 2708 if (h == NULL 2709 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2710 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN 2711 || ! info->shared 2712 || info->symbolic 2713 || h->dynindx == -1 2714 || h->got.offset != (bfd_vma) -1) 2715 goto force_got; 2716 2717 /* Make sure this symbol is output as a dynamic symbol. */ 2718 if (h->dynindx == -1) 2719 { 2720 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 2721 return FALSE; 2722 } 2723 2724 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; 2725 2726 break; 2727 2728 case R_SH_PLT_LOW16: 2729 case R_SH_PLT_MEDLOW16: 2730 case R_SH_PLT_MEDHI16: 2731 case R_SH_PLT_HI16: 2732 /* This symbol requires a procedure linkage table entry. We 2733 actually build the entry in adjust_dynamic_symbol, 2734 because this might be a case of linking PIC code which is 2735 never referenced by a dynamic object, in which case we 2736 don't need to generate a procedure linkage table entry 2737 after all. */ 2738 2739 /* If this is a local symbol, we resolve it directly without 2740 creating a procedure linkage table entry. */ 2741 if (h == NULL) 2742 continue; 2743 2744 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL 2745 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) 2746 break; 2747 2748 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; 2749 2750 break; 2751 2752 case R_SH_64: 2753 case R_SH_64_PCREL: 2754 if (h != NULL) 2755 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; 2756 2757 /* If we are creating a shared library, and this is a reloc 2758 against a global symbol, or a non PC relative reloc 2759 against a local symbol, then we need to copy the reloc 2760 into the shared library. However, if we are linking with 2761 -Bsymbolic, we do not need to copy a reloc against a 2762 global symbol which is defined in an object we are 2763 including in the link (i.e., DEF_REGULAR is set). At 2764 this point we have not seen all the input files, so it is 2765 possible that DEF_REGULAR is not set now but will be set 2766 later (it is never cleared). We account for that 2767 possibility below by storing information in the 2768 pcrel_relocs_copied field of the hash table entry. */ 2769 if (info->shared 2770 && (sec->flags & SEC_ALLOC) != 0 2771 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL 2772 || (h != NULL 2773 && (! info->symbolic 2774 || (h->elf_link_hash_flags 2775 & ELF_LINK_HASH_DEF_REGULAR) == 0)))) 2776 { 2777 /* When creating a shared object, we must copy these 2778 reloc types into the output file. We create a reloc 2779 section in dynobj and make room for this reloc. */ 2780 if (sreloc == NULL) 2781 { 2782 const char *name; 2783 2784 name = (bfd_elf_string_from_elf_section 2785 (abfd, 2786 elf_elfheader (abfd)->e_shstrndx, 2787 elf_section_data (sec)->rel_hdr.sh_name)); 2788 if (name == NULL) 2789 return FALSE; 2790 2791 BFD_ASSERT (strncmp (name, ".rela", 5) == 0 2792 && strcmp (bfd_get_section_name (abfd, sec), 2793 name + 5) == 0); 2794 2795 sreloc = bfd_get_section_by_name (dynobj, name); 2796 if (sreloc == NULL) 2797 { 2798 flagword flags; 2799 2800 sreloc = bfd_make_section (dynobj, name); 2801 flags = (SEC_HAS_CONTENTS | SEC_READONLY 2802 | SEC_IN_MEMORY | SEC_LINKER_CREATED); 2803 if ((sec->flags & SEC_ALLOC) != 0) 2804 flags |= SEC_ALLOC | SEC_LOAD; 2805 if (sreloc == NULL 2806 || ! bfd_set_section_flags (dynobj, sreloc, flags) 2807 || ! bfd_set_section_alignment (dynobj, sreloc, 2)) 2808 return FALSE; 2809 } 2810 } 2811 2812 sreloc->_raw_size += sizeof (Elf64_External_Rela); 2813 2814 /* If we are linking with -Bsymbolic, and this is a 2815 global symbol, we count the number of PC relative 2816 relocations we have entered for this symbol, so that 2817 we can discard them again if the symbol is later 2818 defined by a regular object. Note that this function 2819 is only called if we are using an elf_sh linker 2820 hash table, which means that h is really a pointer to 2821 an elf_sh_link_hash_entry. */ 2822 if (h != NULL && info->symbolic 2823 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL) 2824 { 2825 struct elf_sh64_link_hash_entry *eh; 2826 struct elf_sh64_pcrel_relocs_copied *p; 2827 2828 eh = (struct elf_sh64_link_hash_entry *) h; 2829 2830 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) 2831 if (p->section == sreloc) 2832 break; 2833 2834 if (p == NULL) 2835 { 2836 p = ((struct elf_sh64_pcrel_relocs_copied *) 2837 bfd_alloc (dynobj, sizeof *p)); 2838 if (p == NULL) 2839 return FALSE; 2840 p->next = eh->pcrel_relocs_copied; 2841 eh->pcrel_relocs_copied = p; 2842 p->section = sreloc; 2843 p->count = 0; 2844 } 2845 2846 ++p->count; 2847 } 2848 } 2849 2850 break; 2851 } 2852 } 2853 2854 return TRUE; 2855} 2856 2857static int 2858sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) 2859{ 2860 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL) 2861 return STT_DATALABEL; 2862 2863 return type; 2864} 2865 2866/* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c. 2867 Either file can presumably exist without the other, but do not differ 2868 in elf-size-ness. How to share? 2869 2870 Hook called by the linker routine which adds symbols from an object 2871 file. We must make indirect symbols for undefined symbols marked with 2872 STT_DATALABEL, so relocations passing them will pick up that attribute 2873 and neutralize STO_SH5_ISA32 found on the symbol definition. 2874 2875 There is a problem, though: We want to fill in the hash-table entry for 2876 this symbol and signal to the caller that no further processing is 2877 needed. But we don't have the index for this hash-table entry. We 2878 rely here on that the current entry is the first hash-entry with NULL, 2879 which seems brittle. Also, iterating over the hash-table to find that 2880 entry is a linear operation on the number of symbols in this input 2881 file, and this function should take constant time, so that's not good 2882 too. Only comfort is that DataLabel references should only be found in 2883 hand-written assembly code and thus be rare. FIXME: Talk maintainers 2884 into adding an option to elf_add_symbol_hook (preferably) for the index 2885 or the hash entry, alternatively adding the index to Elf_Internal_Sym 2886 (not so good). */ 2887 2888static bfd_boolean 2889sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info, 2890 Elf_Internal_Sym *sym, const char **namep, 2891 flagword *flagsp ATTRIBUTE_UNUSED, 2892 asection **secp, bfd_vma *valp) 2893{ 2894 /* We want to do this for relocatable as well as final linking. */ 2895 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL 2896 && is_elf_hash_table (info->hash)) 2897 { 2898 struct elf_link_hash_entry *h; 2899 2900 /* For relocatable links, we register the DataLabel sym in its own 2901 right, and tweak the name when it's output. Otherwise, we make 2902 an indirect symbol of it. */ 2903 flagword flags 2904 = info->relocatable || info->emitrelocations 2905 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT; 2906 2907 char *dl_name 2908 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX)); 2909 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd); 2910 2911 BFD_ASSERT (sym_hash != NULL); 2912 2913 /* Allocation may fail. */ 2914 if (dl_name == NULL) 2915 return FALSE; 2916 2917 strcpy (dl_name, *namep); 2918 strcat (dl_name, DATALABEL_SUFFIX); 2919 2920 h = (struct elf_link_hash_entry *) 2921 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE); 2922 2923 if (h == NULL) 2924 { 2925 /* No previous datalabel symbol. Make one. */ 2926 struct bfd_link_hash_entry *bh = NULL; 2927 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 2928 2929 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name, 2930 flags, *secp, *valp, 2931 *namep, FALSE, 2932 bed->collect, &bh)) 2933 { 2934 free (dl_name); 2935 return FALSE; 2936 } 2937 2938 h = (struct elf_link_hash_entry *) bh; 2939 h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; 2940 h->type = STT_DATALABEL; 2941 } 2942 else 2943 /* If a new symbol was created, it holds the allocated name. 2944 Otherwise, we don't need it anymore and should deallocate it. */ 2945 free (dl_name); 2946 2947 if (h->type != STT_DATALABEL 2948 || ((info->relocatable || info->emitrelocations) 2949 && h->root.type != bfd_link_hash_undefined) 2950 || (! info->relocatable && !info->emitrelocations 2951 && h->root.type != bfd_link_hash_indirect)) 2952 { 2953 /* Make sure we don't get confused on invalid input. */ 2954 (*_bfd_error_handler) 2955 (_("%s: encountered datalabel symbol in input"), 2956 bfd_get_filename (abfd)); 2957 bfd_set_error (bfd_error_bad_value); 2958 return FALSE; 2959 } 2960 2961 /* Now find the hash-table slot for this entry and fill it in. */ 2962 while (*sym_hash != NULL) 2963 sym_hash++; 2964 *sym_hash = h; 2965 2966 /* Signal to caller to skip this symbol - we've handled it. */ 2967 *namep = NULL; 2968 } 2969 2970 return TRUE; 2971} 2972 2973/* This hook function is called before the linker writes out a global 2974 symbol. For relocatable links, DataLabel symbols will be present in 2975 linker output. We cut off the special suffix on those symbols, so the 2976 right name appears in the output. 2977 2978 When linking and emitting relocations, there can appear global symbols 2979 that are not referenced by relocs, but rather only implicitly through 2980 DataLabel references, a relation that is not visible to the linker. 2981 Since no stripping of global symbols in done when doing such linking, 2982 we don't need to look up and make sure to emit the main symbol for each 2983 DataLabel symbol. */ 2984 2985static bfd_boolean 2986sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info, 2987 const char *cname, 2988 Elf_Internal_Sym *sym, 2989 asection *input_sec ATTRIBUTE_UNUSED, 2990 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) 2991{ 2992 char *name = (char *) cname; 2993 2994 if (info->relocatable || info->emitrelocations) 2995 { 2996 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL) 2997 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0; 2998 } 2999 3000 return TRUE; 3001} 3002 3003/* Set bit 0 on the entry address; it always points to SHmedia code. This 3004 is mostly for symmetry with the 32-bit format, where code can be 3005 SHcompact and we need to make a distinction to make sure execution 3006 starts in the right ISA mode. It is also convenient for a loader, 3007 which would otherwise have to set this bit when loading a TR register 3008 before jumping to the program entry. */ 3009 3010static void 3011sh64_elf64_final_write_processing (bfd *abfd, 3012 bfd_boolean linker ATTRIBUTE_UNUSED) 3013{ 3014 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied 3015 numerically, but we currently lack the infrastructure to recognize 3016 that: The entry symbol, and info whether it is numeric or a symbol 3017 name is kept private in the linker. */ 3018 if (elf_elfheader (abfd)->e_type == ET_EXEC) 3019 elf_elfheader (abfd)->e_entry |= 1; 3020} 3021 3022/* First entry in an absolute procedure linkage table look like this. */ 3023 3024static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] = 3025{ 3026 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */ 3027 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */ 3028 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */ 3029 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */ 3030 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 3031 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3032 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 3033 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3034 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3035 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3036 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3037 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3038 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3039 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3040 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3041 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3042}; 3043 3044static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] = 3045{ 3046 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */ 3047 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */ 3048 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */ 3049 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */ 3050 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 3051 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3052 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 3053 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3054 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3055 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3056 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3057 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3058 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3059 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3060 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3061 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3062}; 3063 3064/* Sebsequent entries in an absolute procedure linkage table look like 3065 this. */ 3066 3067static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] = 3068{ 3069 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */ 3070 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */ 3071 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */ 3072 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */ 3073 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */ 3074 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3075 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3076 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3077 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */ 3078 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */ 3079 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */ 3080 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 3081 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 3082 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3083 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3084 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3085}; 3086 3087static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] = 3088{ 3089 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */ 3090 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3091 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3092 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ 3093 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */ 3094 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3095 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3096 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3097 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */ 3098 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */ 3099 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */ 3100 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 3101 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 3102 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3103 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3104 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3105}; 3106 3107/* Entries in a PIC procedure linkage table look like this. */ 3108 3109static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] = 3110{ 3111 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */ 3112 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */ 3113 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */ 3114 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3115 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3116 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3117 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3118 0x6f, 0xf0, 0xff, 0xf0, /* nop */ 3119 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */ 3120 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */ 3121 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ 3122 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ 3123 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ 3124 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ 3125 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ 3126 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ 3127}; 3128 3129static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] = 3130{ 3131 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */ 3132 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */ 3133 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */ 3134 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3135 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3136 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3137 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3138 0xf0, 0xff, 0xf0, 0x6f, /* nop */ 3139 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */ 3140 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */ 3141 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ 3142 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ 3143 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ 3144 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ 3145 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ 3146 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ 3147}; 3148 3149static const bfd_byte *elf_sh64_plt0_entry; 3150static const bfd_byte *elf_sh64_plt_entry; 3151static const bfd_byte *elf_sh64_pic_plt_entry; 3152 3153/* Create an entry in an sh ELF linker hash table. */ 3154 3155static struct bfd_hash_entry * 3156sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry, 3157 struct bfd_hash_table *table, 3158 const char *string) 3159{ 3160 struct elf_sh64_link_hash_entry *ret = 3161 (struct elf_sh64_link_hash_entry *) entry; 3162 3163 /* Allocate the structure if it has not already been allocated by a 3164 subclass. */ 3165 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 3166 ret = ((struct elf_sh64_link_hash_entry *) 3167 bfd_hash_allocate (table, 3168 sizeof (struct elf_sh64_link_hash_entry))); 3169 if (ret == (struct elf_sh64_link_hash_entry *) NULL) 3170 return (struct bfd_hash_entry *) ret; 3171 3172 /* Call the allocation method of the superclass. */ 3173 ret = ((struct elf_sh64_link_hash_entry *) 3174 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, 3175 table, string)); 3176 if (ret != (struct elf_sh64_link_hash_entry *) NULL) 3177 { 3178 ret->pcrel_relocs_copied = NULL; 3179 ret->datalabel_got_offset = (bfd_vma) -1; 3180 } 3181 3182 return (struct bfd_hash_entry *) ret; 3183} 3184 3185/* Create an sh64 ELF linker hash table. */ 3186 3187static struct bfd_link_hash_table * 3188sh64_elf64_link_hash_table_create (bfd *abfd) 3189{ 3190 struct elf_sh64_link_hash_table *ret; 3191 3192 ret = ((struct elf_sh64_link_hash_table *) 3193 bfd_malloc (sizeof (struct elf_sh64_link_hash_table))); 3194 if (ret == (struct elf_sh64_link_hash_table *) NULL) 3195 return NULL; 3196 3197 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, 3198 sh64_elf64_link_hash_newfunc)) 3199 { 3200 free (ret); 3201 return NULL; 3202 } 3203 3204 return &ret->root.root; 3205} 3206 3207inline static void 3208movi_shori_putval (bfd *output_bfd, unsigned long value, char *addr) 3209{ 3210 bfd_put_32 (output_bfd, 3211 bfd_get_32 (output_bfd, addr) 3212 | ((value >> 6) & 0x3fffc00), 3213 addr); 3214 bfd_put_32 (output_bfd, 3215 bfd_get_32 (output_bfd, addr + 4) 3216 | ((value << 10) & 0x3fffc00), 3217 addr + 4); 3218} 3219 3220inline static void 3221movi_3shori_putval (bfd *output_bfd, bfd_vma value, char *addr) 3222{ 3223 bfd_put_32 (output_bfd, 3224 bfd_get_32 (output_bfd, addr) 3225 | ((value >> 38) & 0x3fffc00), 3226 addr); 3227 bfd_put_32 (output_bfd, 3228 bfd_get_32 (output_bfd, addr + 4) 3229 | ((value >> 22) & 0x3fffc00), 3230 addr + 4); 3231 bfd_put_32 (output_bfd, 3232 bfd_get_32 (output_bfd, addr + 8) 3233 | ((value >> 6) & 0x3fffc00), 3234 addr + 8); 3235 bfd_put_32 (output_bfd, 3236 bfd_get_32 (output_bfd, addr + 12) 3237 | ((value << 10) & 0x3fffc00), 3238 addr + 12); 3239} 3240 3241/* Create dynamic sections when linking against a dynamic object. */ 3242 3243static bfd_boolean 3244sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) 3245{ 3246 flagword flags, pltflags; 3247 register asection *s; 3248 const struct elf_backend_data *bed = get_elf_backend_data (abfd); 3249 int ptralign = 0; 3250 3251 switch (bed->s->arch_size) 3252 { 3253 case 32: 3254 ptralign = 2; 3255 break; 3256 3257 case 64: 3258 ptralign = 3; 3259 break; 3260 3261 default: 3262 bfd_set_error (bfd_error_bad_value); 3263 return FALSE; 3264 } 3265 3266 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and 3267 .rel[a].bss sections. */ 3268 3269 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY 3270 | SEC_LINKER_CREATED); 3271 3272 pltflags = flags; 3273 pltflags |= SEC_CODE; 3274 if (bed->plt_not_loaded) 3275 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); 3276 if (bed->plt_readonly) 3277 pltflags |= SEC_READONLY; 3278 3279 s = bfd_make_section (abfd, ".plt"); 3280 if (s == NULL 3281 || ! bfd_set_section_flags (abfd, s, pltflags) 3282 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) 3283 return FALSE; 3284 3285 if (bed->want_plt_sym) 3286 { 3287 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the 3288 .plt section. */ 3289 struct elf_link_hash_entry *h; 3290 struct bfd_link_hash_entry *bh = NULL; 3291 3292 if (! (_bfd_generic_link_add_one_symbol 3293 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 3294 (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh))) 3295 return FALSE; 3296 3297 h = (struct elf_link_hash_entry *) bh; 3298 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; 3299 h->type = STT_OBJECT; 3300 3301 if (info->shared 3302 && ! bfd_elf_link_record_dynamic_symbol (info, h)) 3303 return FALSE; 3304 } 3305 3306 s = bfd_make_section (abfd, 3307 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); 3308 if (s == NULL 3309 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) 3310 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3311 return FALSE; 3312 3313 if (! _bfd_elf_create_got_section (abfd, info)) 3314 return FALSE; 3315 3316 { 3317 const char *secname; 3318 char *relname; 3319 flagword secflags; 3320 asection *sec; 3321 3322 for (sec = abfd->sections; sec; sec = sec->next) 3323 { 3324 secflags = bfd_get_section_flags (abfd, sec); 3325 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) 3326 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) 3327 continue; 3328 secname = bfd_get_section_name (abfd, sec); 3329 relname = (char *) bfd_malloc (strlen (secname) + 6); 3330 strcpy (relname, ".rela"); 3331 strcat (relname, secname); 3332 s = bfd_make_section (abfd, relname); 3333 if (s == NULL 3334 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) 3335 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3336 return FALSE; 3337 } 3338 } 3339 3340 if (bed->want_dynbss) 3341 { 3342 /* The .dynbss section is a place to put symbols which are defined 3343 by dynamic objects, are referenced by regular objects, and are 3344 not functions. We must allocate space for them in the process 3345 image and use a R_*_COPY reloc to tell the dynamic linker to 3346 initialize them at run time. The linker script puts the .dynbss 3347 section into the .bss section of the final image. */ 3348 s = bfd_make_section (abfd, ".dynbss"); 3349 if (s == NULL 3350 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) 3351 return FALSE; 3352 3353 /* The .rel[a].bss section holds copy relocs. This section is not 3354 normally needed. We need to create it here, though, so that the 3355 linker will map it to an output section. We can't just create it 3356 only if we need it, because we will not know whether we need it 3357 until we have seen all the input files, and the first time the 3358 main linker code calls BFD after examining all the input files 3359 (size_dynamic_sections) the input sections have already been 3360 mapped to the output sections. If the section turns out not to 3361 be needed, we can discard it later. We will never need this 3362 section when generating a shared object, since they do not use 3363 copy relocs. */ 3364 if (! info->shared) 3365 { 3366 s = bfd_make_section (abfd, 3367 (bed->default_use_rela_p 3368 ? ".rela.bss" : ".rel.bss")); 3369 if (s == NULL 3370 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) 3371 || ! bfd_set_section_alignment (abfd, s, ptralign)) 3372 return FALSE; 3373 } 3374 } 3375 3376 return TRUE; 3377} 3378 3379/* Adjust a symbol defined by a dynamic object and referenced by a 3380 regular object. The current definition is in some section of the 3381 dynamic object, but we're not including those sections. We have to 3382 change the definition to something the rest of the link can 3383 understand. */ 3384 3385static bfd_boolean 3386sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info, 3387 struct elf_link_hash_entry *h) 3388{ 3389 bfd *dynobj; 3390 asection *s; 3391 unsigned int power_of_two; 3392 3393 dynobj = elf_hash_table (info)->dynobj; 3394 3395 /* Make sure we know what is going on here. */ 3396 BFD_ASSERT (dynobj != NULL 3397 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) 3398 || h->weakdef != NULL 3399 || ((h->elf_link_hash_flags 3400 & ELF_LINK_HASH_DEF_DYNAMIC) != 0 3401 && (h->elf_link_hash_flags 3402 & ELF_LINK_HASH_REF_REGULAR) != 0 3403 && (h->elf_link_hash_flags 3404 & ELF_LINK_HASH_DEF_REGULAR) == 0))); 3405 3406 /* If this is a function, put it in the procedure linkage table. We 3407 will fill in the contents of the procedure linkage table later, 3408 when we know the address of the .got section. */ 3409 if (h->type == STT_FUNC 3410 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) 3411 { 3412 if (! info->shared 3413 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 3414 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0) 3415 { 3416 /* This case can occur if we saw a PLT reloc in an input 3417 file, but the symbol was never referred to by a dynamic 3418 object. In such a case, we don't actually need to build 3419 a procedure linkage table, and we can just do a REL64 3420 reloc instead. */ 3421 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0); 3422 return TRUE; 3423 } 3424 3425 /* Make sure this symbol is output as a dynamic symbol. */ 3426 if (h->dynindx == -1) 3427 { 3428 if (! bfd_elf_link_record_dynamic_symbol (info, h)) 3429 return FALSE; 3430 } 3431 3432 s = bfd_get_section_by_name (dynobj, ".plt"); 3433 BFD_ASSERT (s != NULL); 3434 3435 /* If this is the first .plt entry, make room for the special 3436 first entry. */ 3437 if (s->_raw_size == 0) 3438 s->_raw_size += PLT_ENTRY_SIZE; 3439 3440 /* If this symbol is not defined in a regular file, and we are 3441 not generating a shared library, then set the symbol to this 3442 location in the .plt. This is required to make function 3443 pointers compare as equal between the normal executable and 3444 the shared library. */ 3445 if (! info->shared 3446 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) 3447 { 3448 h->root.u.def.section = s; 3449 h->root.u.def.value = s->_raw_size; 3450 } 3451 3452 h->plt.offset = s->_raw_size; 3453 3454 /* Make room for this entry. */ 3455 s->_raw_size += elf_sh64_sizeof_plt (info); 3456 3457 /* We also need to make an entry in the .got.plt section, which 3458 will be placed in the .got section by the linker script. */ 3459 3460 s = bfd_get_section_by_name (dynobj, ".got.plt"); 3461 BFD_ASSERT (s != NULL); 3462 s->_raw_size += 8; 3463 3464 /* We also need to make an entry in the .rela.plt section. */ 3465 3466 s = bfd_get_section_by_name (dynobj, ".rela.plt"); 3467 BFD_ASSERT (s != NULL); 3468 s->_raw_size += sizeof (Elf64_External_Rela); 3469 3470 return TRUE; 3471 } 3472 3473 /* If this is a weak symbol, and there is a real definition, the 3474 processor independent code will have arranged for us to see the 3475 real definition first, and we can just use the same value. */ 3476 if (h->weakdef != NULL) 3477 { 3478 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined 3479 || h->weakdef->root.type == bfd_link_hash_defweak); 3480 h->root.u.def.section = h->weakdef->root.u.def.section; 3481 h->root.u.def.value = h->weakdef->root.u.def.value; 3482 return TRUE; 3483 } 3484 3485 /* This is a reference to a symbol defined by a dynamic object which 3486 is not a function. */ 3487 3488 /* If we are creating a shared library, we must presume that the 3489 only references to the symbol are via the global offset table. 3490 For such cases we need not do anything here; the relocations will 3491 be handled correctly by relocate_section. */ 3492 if (info->shared) 3493 return TRUE; 3494 3495 /* If there are no references to this symbol that do not use the 3496 GOT, we don't need to generate a copy reloc. */ 3497 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) 3498 return TRUE; 3499 3500 /* We must allocate the symbol in our .dynbss section, which will 3501 become part of the .bss section of the executable. There will be 3502 an entry for this symbol in the .dynsym section. The dynamic 3503 object will contain position independent code, so all references 3504 from the dynamic object to this symbol will go through the global 3505 offset table. The dynamic linker will use the .dynsym entry to 3506 determine the address it must put in the global offset table, so 3507 both the dynamic object and the regular object will refer to the 3508 same memory location for the variable. */ 3509 3510 s = bfd_get_section_by_name (dynobj, ".dynbss"); 3511 BFD_ASSERT (s != NULL); 3512 3513 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to 3514 copy the initial value out of the dynamic object and into the 3515 runtime process image. We need to remember the offset into the 3516 .rela.bss section we are going to use. */ 3517 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) 3518 { 3519 asection *srel; 3520 3521 srel = bfd_get_section_by_name (dynobj, ".rela.bss"); 3522 BFD_ASSERT (srel != NULL); 3523 srel->_raw_size += sizeof (Elf64_External_Rela); 3524 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; 3525 } 3526 3527 /* We need to figure out the alignment required for this symbol. I 3528 have no idea how ELF linkers handle this. */ 3529 power_of_two = bfd_log2 (h->size); 3530 if (power_of_two > 3) 3531 power_of_two = 3; 3532 3533 /* Apply the required alignment. */ 3534 s->_raw_size = BFD_ALIGN (s->_raw_size, 3535 (bfd_size_type) (1 << power_of_two)); 3536 if (power_of_two > bfd_get_section_alignment (dynobj, s)) 3537 { 3538 if (! bfd_set_section_alignment (dynobj, s, power_of_two)) 3539 return FALSE; 3540 } 3541 3542 /* Define the symbol as being at this point in the section. */ 3543 h->root.u.def.section = s; 3544 h->root.u.def.value = s->_raw_size; 3545 3546 /* Increment the section size to make room for the symbol. */ 3547 s->_raw_size += h->size; 3548 3549 return TRUE; 3550} 3551 3552/* This function is called via sh_elf_link_hash_traverse if we are 3553 creating a shared object with -Bsymbolic. It discards the space 3554 allocated to copy PC relative relocs against symbols which are 3555 defined in regular objects. We allocated space for them in the 3556 check_relocs routine, but we won't fill them in in the 3557 relocate_section routine. */ 3558 3559static bfd_boolean 3560sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h, 3561 void *ignore ATTRIBUTE_UNUSED) 3562{ 3563 struct elf_sh64_pcrel_relocs_copied *s; 3564 3565 if (h->root.root.type == bfd_link_hash_warning) 3566 h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link; 3567 3568 /* We only discard relocs for symbols defined in a regular object. */ 3569 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) 3570 return TRUE; 3571 3572 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) 3573 s->section->_raw_size -= s->count * sizeof (Elf64_External_Rela); 3574 3575 return TRUE; 3576} 3577 3578/* Set the sizes of the dynamic sections. */ 3579 3580static bfd_boolean 3581sh64_elf64_size_dynamic_sections (bfd *output_bfd, 3582 struct bfd_link_info *info) 3583{ 3584 bfd *dynobj; 3585 asection *s; 3586 bfd_boolean plt; 3587 bfd_boolean relocs; 3588 bfd_boolean reltext; 3589 3590 dynobj = elf_hash_table (info)->dynobj; 3591 BFD_ASSERT (dynobj != NULL); 3592 3593 if (elf_hash_table (info)->dynamic_sections_created) 3594 { 3595 /* Set the contents of the .interp section to the interpreter. */ 3596 if (info->executable) 3597 { 3598 s = bfd_get_section_by_name (dynobj, ".interp"); 3599 BFD_ASSERT (s != NULL); 3600 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; 3601 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; 3602 } 3603 } 3604 else 3605 { 3606 /* We may have created entries in the .rela.got section. 3607 However, if we are not creating the dynamic sections, we will 3608 not actually use these entries. Reset the size of .rela.got, 3609 which will cause it to get stripped from the output file 3610 below. */ 3611 s = bfd_get_section_by_name (dynobj, ".rela.got"); 3612 if (s != NULL) 3613 s->_raw_size = 0; 3614 } 3615 3616 /* If this is a -Bsymbolic shared link, then we need to discard all 3617 PC relative relocs against symbols defined in a regular object. 3618 We allocated space for them in the check_relocs routine, but we 3619 will not fill them in in the relocate_section routine. */ 3620 if (info->shared && info->symbolic) 3621 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info), 3622 sh64_elf64_discard_copies, NULL); 3623 3624 /* The check_relocs and adjust_dynamic_symbol entry points have 3625 determined the sizes of the various dynamic sections. Allocate 3626 memory for them. */ 3627 plt = FALSE; 3628 relocs = FALSE; 3629 reltext = FALSE; 3630 for (s = dynobj->sections; s != NULL; s = s->next) 3631 { 3632 const char *name; 3633 bfd_boolean strip; 3634 3635 if ((s->flags & SEC_LINKER_CREATED) == 0) 3636 continue; 3637 3638 /* It's OK to base decisions on the section name, because none 3639 of the dynobj section names depend upon the input files. */ 3640 name = bfd_get_section_name (dynobj, s); 3641 3642 strip = FALSE; 3643 3644 if (strcmp (name, ".plt") == 0) 3645 { 3646 if (s->_raw_size == 0) 3647 { 3648 /* Strip this section if we don't need it; see the 3649 comment below. */ 3650 strip = TRUE; 3651 } 3652 else 3653 { 3654 /* Remember whether there is a PLT. */ 3655 plt = TRUE; 3656 } 3657 } 3658 else if (strncmp (name, ".rela", 5) == 0) 3659 { 3660 if (s->_raw_size == 0) 3661 { 3662 /* If we don't need this section, strip it from the 3663 output file. This is mostly to handle .rela.bss and 3664 .rela.plt. We must create both sections in 3665 create_dynamic_sections, because they must be created 3666 before the linker maps input sections to output 3667 sections. The linker does that before 3668 adjust_dynamic_symbol is called, and it is that 3669 function which decides whether anything needs to go 3670 into these sections. */ 3671 strip = TRUE; 3672 } 3673 else 3674 { 3675 asection *target; 3676 3677 /* Remember whether there are any reloc sections other 3678 than .rela.plt. */ 3679 if (strcmp (name, ".rela.plt") != 0) 3680 { 3681 const char *outname; 3682 3683 relocs = TRUE; 3684 3685 /* If this relocation section applies to a read only 3686 section, then we probably need a DT_TEXTREL 3687 entry. The entries in the .rela.plt section 3688 really apply to the .got section, which we 3689 created ourselves and so know is not readonly. */ 3690 outname = bfd_get_section_name (output_bfd, 3691 s->output_section); 3692 target = bfd_get_section_by_name (output_bfd, outname + 5); 3693 if (target != NULL 3694 && (target->flags & SEC_READONLY) != 0 3695 && (target->flags & SEC_ALLOC) != 0) 3696 reltext = TRUE; 3697 } 3698 3699 /* We use the reloc_count field as a counter if we need 3700 to copy relocs into the output file. */ 3701 s->reloc_count = 0; 3702 } 3703 } 3704 else if (strncmp (name, ".got", 4) != 0) 3705 { 3706 /* It's not one of our sections, so don't allocate space. */ 3707 continue; 3708 } 3709 3710 if (strip) 3711 { 3712 _bfd_strip_section_from_output (info, s); 3713 continue; 3714 } 3715 3716 /* Allocate memory for the section contents. */ 3717 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); 3718 if (s->contents == NULL && s->_raw_size != 0) 3719 return FALSE; 3720 } 3721 3722 if (elf_hash_table (info)->dynamic_sections_created) 3723 { 3724 /* Add some entries to the .dynamic section. We fill in the 3725 values later, in sh64_elf64_finish_dynamic_sections, but we 3726 must add the entries now so that we get the correct size for 3727 the .dynamic section. The DT_DEBUG entry is filled in by the 3728 dynamic linker and used by the debugger. */ 3729 if (info->executable) 3730 { 3731 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) 3732 return FALSE; 3733 } 3734 3735 if (plt) 3736 { 3737 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) 3738 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) 3739 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) 3740 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) 3741 return FALSE; 3742 } 3743 3744 if (relocs) 3745 { 3746 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) 3747 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) 3748 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, 3749 sizeof (Elf64_External_Rela))) 3750 return FALSE; 3751 } 3752 3753 if (reltext) 3754 { 3755 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) 3756 return FALSE; 3757 } 3758 } 3759 3760 return TRUE; 3761} 3762 3763/* Finish up dynamic symbol handling. We set the contents of various 3764 dynamic sections here. */ 3765 3766static bfd_boolean 3767sh64_elf64_finish_dynamic_symbol (bfd *output_bfd, 3768 struct bfd_link_info *info, 3769 struct elf_link_hash_entry *h, 3770 Elf_Internal_Sym *sym) 3771{ 3772 bfd *dynobj; 3773 3774 dynobj = elf_hash_table (info)->dynobj; 3775 3776 if (h->plt.offset != (bfd_vma) -1) 3777 { 3778 asection *splt; 3779 asection *sgot; 3780 asection *srel; 3781 3782 bfd_vma plt_index; 3783 bfd_vma got_offset; 3784 Elf_Internal_Rela rel; 3785 bfd_byte *loc; 3786 3787 /* This symbol has an entry in the procedure linkage table. Set 3788 it up. */ 3789 3790 BFD_ASSERT (h->dynindx != -1); 3791 3792 splt = bfd_get_section_by_name (dynobj, ".plt"); 3793 sgot = bfd_get_section_by_name (dynobj, ".got.plt"); 3794 srel = bfd_get_section_by_name (dynobj, ".rela.plt"); 3795 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); 3796 3797 /* Get the index in the procedure linkage table which 3798 corresponds to this symbol. This is the index of this symbol 3799 in all the symbols for which we are making plt entries. The 3800 first entry in the procedure linkage table is reserved. */ 3801 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1; 3802 3803 /* Get the offset into the .got table of the entry that 3804 corresponds to this function. Each .got entry is 8 bytes. 3805 The first three are reserved. */ 3806 got_offset = (plt_index + 3) * 8; 3807 3808 if (info->shared) 3809 got_offset -= GOT_BIAS; 3810 3811 /* Fill in the entry in the procedure linkage table. */ 3812 if (! info->shared) 3813 { 3814 if (elf_sh64_plt_entry == NULL) 3815 { 3816 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ? 3817 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le); 3818 } 3819 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry, 3820 elf_sh64_sizeof_plt (info)); 3821 movi_3shori_putval (output_bfd, 3822 (sgot->output_section->vma 3823 + sgot->output_offset 3824 + got_offset), 3825 (splt->contents + h->plt.offset 3826 + elf_sh64_plt_symbol_offset (info))); 3827 3828 /* Set bottom bit because its for a branch to SHmedia */ 3829 movi_shori_putval (output_bfd, 3830 -(h->plt.offset 3831 + elf_sh64_plt_plt0_offset (info) + 8) 3832 | 1, 3833 (splt->contents + h->plt.offset 3834 + elf_sh64_plt_plt0_offset (info))); 3835 } 3836 else 3837 { 3838 if (elf_sh64_pic_plt_entry == NULL) 3839 { 3840 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 3841 elf_sh64_pic_plt_entry_be : 3842 elf_sh64_pic_plt_entry_le); 3843 } 3844 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry, 3845 elf_sh64_sizeof_plt (info)); 3846 movi_shori_putval (output_bfd, got_offset, 3847 (splt->contents + h->plt.offset 3848 + elf_sh64_plt_symbol_offset (info))); 3849 } 3850 3851 if (info->shared) 3852 got_offset += GOT_BIAS; 3853 3854 movi_shori_putval (output_bfd, 3855 plt_index * sizeof (Elf64_External_Rela), 3856 (splt->contents + h->plt.offset 3857 + elf_sh64_plt_reloc_offset (info))); 3858 3859 /* Fill in the entry in the global offset table. */ 3860 bfd_put_64 (output_bfd, 3861 (splt->output_section->vma 3862 + splt->output_offset 3863 + h->plt.offset 3864 + elf_sh64_plt_temp_offset (info)), 3865 sgot->contents + got_offset); 3866 3867 /* Fill in the entry in the .rela.plt section. */ 3868 rel.r_offset = (sgot->output_section->vma 3869 + sgot->output_offset 3870 + got_offset); 3871 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64); 3872 rel.r_addend = 0; 3873 rel.r_addend = GOT_BIAS; 3874 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela); 3875 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3876 3877 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) 3878 { 3879 /* Mark the symbol as undefined, rather than as defined in 3880 the .plt section. Leave the value alone. */ 3881 sym->st_shndx = SHN_UNDEF; 3882 } 3883 } 3884 3885 if (h->got.offset != (bfd_vma) -1) 3886 { 3887 asection *sgot; 3888 asection *srel; 3889 Elf_Internal_Rela rel; 3890 bfd_byte *loc; 3891 3892 /* This symbol has an entry in the global offset table. Set it 3893 up. */ 3894 3895 sgot = bfd_get_section_by_name (dynobj, ".got"); 3896 srel = bfd_get_section_by_name (dynobj, ".rela.got"); 3897 BFD_ASSERT (sgot != NULL && srel != NULL); 3898 3899 rel.r_offset = (sgot->output_section->vma 3900 + sgot->output_offset 3901 + (h->got.offset &~ 1)); 3902 3903 /* If this is a -Bsymbolic link, and the symbol is defined 3904 locally, we just want to emit a RELATIVE reloc. Likewise if 3905 the symbol was forced to be local because of a version file. 3906 The entry in the global offset table will already have been 3907 initialized in the relocate_section function. */ 3908 if (info->shared 3909 && (info->symbolic || h->dynindx == -1) 3910 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) 3911 { 3912 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); 3913 rel.r_addend = (h->root.u.def.value 3914 + h->root.u.def.section->output_section->vma 3915 + h->root.u.def.section->output_offset); 3916 } 3917 else 3918 { 3919 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); 3920 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64); 3921 rel.r_addend = 0; 3922 } 3923 3924 loc = srel->contents; 3925 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); 3926 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3927 } 3928 3929 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) 3930 { 3931 asection *s; 3932 Elf_Internal_Rela rel; 3933 bfd_byte *loc; 3934 3935 /* This symbol needs a copy reloc. Set it up. */ 3936 3937 BFD_ASSERT (h->dynindx != -1 3938 && (h->root.type == bfd_link_hash_defined 3939 || h->root.type == bfd_link_hash_defweak)); 3940 3941 s = bfd_get_section_by_name (h->root.u.def.section->owner, 3942 ".rela.bss"); 3943 BFD_ASSERT (s != NULL); 3944 3945 rel.r_offset = (h->root.u.def.value 3946 + h->root.u.def.section->output_section->vma 3947 + h->root.u.def.section->output_offset); 3948 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64); 3949 rel.r_addend = 0; 3950 loc = s->contents; 3951 loc += s->reloc_count++ * sizeof (Elf64_External_Rela); 3952 bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); 3953 } 3954 3955 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ 3956 if (strcmp (h->root.root.string, "_DYNAMIC") == 0 3957 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) 3958 sym->st_shndx = SHN_ABS; 3959 3960 return TRUE; 3961} 3962 3963/* Finish up the dynamic sections. */ 3964 3965static bfd_boolean 3966sh64_elf64_finish_dynamic_sections (bfd *output_bfd, 3967 struct bfd_link_info *info) 3968{ 3969 bfd *dynobj; 3970 asection *sgot; 3971 asection *sdyn; 3972 3973 dynobj = elf_hash_table (info)->dynobj; 3974 3975 sgot = bfd_get_section_by_name (dynobj, ".got.plt"); 3976 BFD_ASSERT (sgot != NULL); 3977 sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); 3978 3979 if (elf_hash_table (info)->dynamic_sections_created) 3980 { 3981 asection *splt; 3982 Elf64_External_Dyn *dyncon, *dynconend; 3983 3984 BFD_ASSERT (sdyn != NULL); 3985 3986 dyncon = (Elf64_External_Dyn *) sdyn->contents; 3987 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); 3988 for (; dyncon < dynconend; dyncon++) 3989 { 3990 Elf_Internal_Dyn dyn; 3991 const char *name; 3992 asection *s; 3993 struct elf_link_hash_entry *h; 3994 3995 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); 3996 3997 switch (dyn.d_tag) 3998 { 3999 default: 4000 break; 4001 4002 case DT_INIT: 4003 name = info->init_function; 4004 goto get_sym; 4005 4006 case DT_FINI: 4007 name = info->fini_function; 4008 get_sym: 4009 if (dyn.d_un.d_val != 0) 4010 { 4011 h = elf_link_hash_lookup (elf_hash_table (info), name, 4012 FALSE, FALSE, TRUE); 4013 if (h != NULL && (h->other & STO_SH5_ISA32)) 4014 { 4015 dyn.d_un.d_val |= 1; 4016 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4017 } 4018 } 4019 break; 4020 4021 case DT_PLTGOT: 4022 name = ".got"; 4023 goto get_vma; 4024 4025 case DT_JMPREL: 4026 name = ".rela.plt"; 4027 get_vma: 4028 s = bfd_get_section_by_name (output_bfd, name); 4029 BFD_ASSERT (s != NULL); 4030 dyn.d_un.d_ptr = s->vma; 4031 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4032 break; 4033 4034 case DT_PLTRELSZ: 4035 s = bfd_get_section_by_name (output_bfd, ".rela.plt"); 4036 BFD_ASSERT (s != NULL); 4037 if (s->_cooked_size != 0) 4038 dyn.d_un.d_val = s->_cooked_size; 4039 else 4040 dyn.d_un.d_val = s->_raw_size; 4041 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4042 break; 4043 4044 case DT_RELASZ: 4045 /* My reading of the SVR4 ABI indicates that the 4046 procedure linkage table relocs (DT_JMPREL) should be 4047 included in the overall relocs (DT_RELA). This is 4048 what Solaris does. However, UnixWare can not handle 4049 that case. Therefore, we override the DT_RELASZ entry 4050 here to make it not include the JMPREL relocs. Since 4051 the linker script arranges for .rela.plt to follow all 4052 other relocation sections, we don't have to worry 4053 about changing the DT_RELA entry. */ 4054 s = bfd_get_section_by_name (output_bfd, ".rela.plt"); 4055 if (s != NULL) 4056 { 4057 if (s->_cooked_size != 0) 4058 dyn.d_un.d_val -= s->_cooked_size; 4059 else 4060 dyn.d_un.d_val -= s->_raw_size; 4061 } 4062 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); 4063 break; 4064 } 4065 } 4066 4067 /* Fill in the first entry in the procedure linkage table. */ 4068 splt = bfd_get_section_by_name (dynobj, ".plt"); 4069 if (splt && splt->_raw_size > 0) 4070 { 4071 if (info->shared) 4072 { 4073 if (elf_sh64_pic_plt_entry == NULL) 4074 { 4075 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? 4076 elf_sh64_pic_plt_entry_be : 4077 elf_sh64_pic_plt_entry_le); 4078 } 4079 memcpy (splt->contents, elf_sh64_pic_plt_entry, 4080 elf_sh64_sizeof_plt (info)); 4081 } 4082 else 4083 { 4084 if (elf_sh64_plt0_entry == NULL) 4085 { 4086 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ? 4087 elf_sh64_plt0_entry_be : 4088 elf_sh64_plt0_entry_le); 4089 } 4090 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE); 4091 movi_3shori_putval (output_bfd, 4092 sgot->output_section->vma 4093 + sgot->output_offset, 4094 splt->contents 4095 + elf_sh64_plt0_gotplt_offset (info)); 4096 } 4097 4098 /* UnixWare sets the entsize of .plt to 8, although that doesn't 4099 really seem like the right value. */ 4100 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8; 4101 } 4102 } 4103 4104 /* Fill in the first three entries in the global offset table. */ 4105 if (sgot->_raw_size > 0) 4106 { 4107 if (sdyn == NULL) 4108 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); 4109 else 4110 bfd_put_64 (output_bfd, 4111 sdyn->output_section->vma + sdyn->output_offset, 4112 sgot->contents); 4113 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8); 4114 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16); 4115 } 4116 4117 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; 4118 4119 return TRUE; 4120} 4121 4122/* Merge non visibility st_other attribute when the symbol comes from 4123 a dynamic object. */ 4124static void 4125sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h, 4126 const Elf_Internal_Sym *isym, 4127 bfd_boolean definition, 4128 bfd_boolean dynamic) 4129{ 4130 if (isym->st_other != 0 && dynamic) 4131 { 4132 unsigned char other; 4133 4134 /* Take the balance of OTHER from the definition. */ 4135 other = (definition ? isym->st_other : h->other); 4136 other &= ~ ELF_ST_VISIBILITY (-1); 4137 h->other = other | ELF_ST_VISIBILITY (h->other); 4138 } 4139 4140 return; 4141} 4142 4143static struct bfd_elf_special_section const sh64_elf64_special_sections[]= 4144{ 4145 { ".cranges", 8, 0, SHT_PROGBITS, 0 }, 4146 { NULL, 0, 0, 0, 0 } 4147}; 4148 4149#define TARGET_BIG_SYM bfd_elf64_sh64_vec 4150#define TARGET_BIG_NAME "elf64-sh64" 4151#define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec 4152#define TARGET_LITTLE_NAME "elf64-sh64l" 4153#define ELF_ARCH bfd_arch_sh 4154#define ELF_MACHINE_CODE EM_SH 4155#define ELF_MAXPAGESIZE 128 4156 4157#define elf_symbol_leading_char '_' 4158 4159#define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup 4160#define elf_info_to_howto sh_elf64_info_to_howto 4161 4162/* Note: there's no relaxation at present. */ 4163 4164#define elf_backend_relocate_section sh_elf64_relocate_section 4165#define bfd_elf64_bfd_get_relocated_section_contents \ 4166 sh_elf64_get_relocated_section_contents 4167#define elf_backend_object_p sh_elf64_set_mach_from_flags 4168#define bfd_elf64_bfd_set_private_flags \ 4169 sh_elf64_set_private_flags 4170#define bfd_elf64_bfd_copy_private_bfd_data \ 4171 sh_elf64_copy_private_data 4172#define bfd_elf64_bfd_merge_private_bfd_data \ 4173 sh_elf64_merge_private_data 4174#define elf_backend_fake_sections sh64_elf64_fake_sections 4175 4176#define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook 4177#define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook 4178#define elf_backend_check_relocs sh_elf64_check_relocs 4179 4180#define elf_backend_can_gc_sections 1 4181 4182#define elf_backend_get_symbol_type sh64_elf64_get_symbol_type 4183 4184#define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook 4185 4186#define elf_backend_link_output_symbol_hook \ 4187 sh64_elf64_link_output_symbol_hook 4188 4189#define elf_backend_merge_symbol_attribute \ 4190 sh64_elf64_merge_symbol_attribute 4191 4192#define elf_backend_final_write_processing \ 4193 sh64_elf64_final_write_processing 4194 4195#define elf_backend_create_dynamic_sections \ 4196 sh64_elf64_create_dynamic_sections 4197#define bfd_elf64_bfd_link_hash_table_create \ 4198 sh64_elf64_link_hash_table_create 4199#define elf_backend_adjust_dynamic_symbol \ 4200 sh64_elf64_adjust_dynamic_symbol 4201#define elf_backend_size_dynamic_sections \ 4202 sh64_elf64_size_dynamic_sections 4203#define elf_backend_finish_dynamic_symbol \ 4204 sh64_elf64_finish_dynamic_symbol 4205#define elf_backend_finish_dynamic_sections \ 4206 sh64_elf64_finish_dynamic_sections 4207#define elf_backend_special_sections sh64_elf64_special_sections 4208 4209#define elf_backend_want_got_plt 1 4210#define elf_backend_plt_readonly 1 4211#define elf_backend_want_plt_sym 0 4212#define elf_backend_got_header_size 24 4213 4214#include "elf64-target.h" 4215 4216/* NetBSD support. */ 4217#undef TARGET_BIG_SYM 4218#define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec 4219#undef TARGET_BIG_NAME 4220#define TARGET_BIG_NAME "elf64-sh64-nbsd" 4221#undef TARGET_LITTLE_SYM 4222#define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec 4223#undef TARGET_LITTLE_NAME 4224#define TARGET_LITTLE_NAME "elf64-sh64l-nbsd" 4225#undef ELF_MAXPAGESIZE 4226#define ELF_MAXPAGESIZE 0x10000 4227#undef elf_symbol_leading_char 4228#define elf_symbol_leading_char 0 4229 4230#define elf64_bed elf64_sh64_nbsd_bed 4231 4232#include "elf64-target.h" 4233 4234/* Linux support. */ 4235#undef TARGET_BIG_SYM 4236#define TARGET_BIG_SYM bfd_elf64_sh64blin_vec 4237#undef TARGET_BIG_NAME 4238#define TARGET_BIG_NAME "elf64-sh64big-linux" 4239#undef TARGET_LITTLE_SYM 4240#define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec 4241#undef TARGET_LITTLE_NAME 4242#define TARGET_LITTLE_NAME "elf64-sh64-linux" 4243 4244#define INCLUDED_TARGET_FILE 4245#include "elf64-target.h" 4246