| 1 | /* SuperH SH64-specific support for 64-bit ELF |
| 2 | Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 20 | MA 02110-1301, USA. */ |
| 21 | |
| 22 | #define SH64_ELF64 |
| 23 | |
| 24 | #include "sysdep.h" |
| 25 | #include "bfd.h" |
| 26 | #include "bfdlink.h" |
| 27 | #include "libbfd.h" |
| 28 | #include "elf-bfd.h" |
| 29 | #include "elf/sh.h" |
| 30 | |
| 31 | /* Add a suffix for datalabel indirection symbols. It must not match any |
| 32 | other symbols; user symbols with or without version or other |
| 33 | decoration. It must only be used internally and not emitted by any |
| 34 | means. */ |
| 35 | #define DATALABEL_SUFFIX " DL" |
| 36 | |
| 37 | #define GOT_BIAS (-((long)-32768)) |
| 38 | |
| 39 | #define PLT_ENTRY_SIZE 64 |
| 40 | |
| 41 | /* Return size of a PLT entry. */ |
| 42 | #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE |
| 43 | |
| 44 | /* Return offset of the PLT0 address in an absolute PLT entry. */ |
| 45 | #define elf_sh64_plt_plt0_offset(info) 32 |
| 46 | |
| 47 | /* Return offset of the linker in PLT0 entry. */ |
| 48 | #define elf_sh64_plt0_gotplt_offset(info) 0 |
| 49 | |
| 50 | /* Return offset of the trampoline in PLT entry */ |
| 51 | #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */ |
| 52 | |
| 53 | /* Return offset of the symbol in PLT entry. */ |
| 54 | #define elf_sh64_plt_symbol_offset(info) 0 |
| 55 | |
| 56 | /* Return offset of the relocation in PLT entry. */ |
| 57 | #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44) |
| 58 | |
| 59 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" |
| 60 | |
| 61 | /* The sh linker needs to keep track of the number of relocs that it |
| 62 | decides to copy in check_relocs for each symbol. This is so that |
| 63 | it can discard PC relative relocs if it doesn't need them when |
| 64 | linking with -Bsymbolic. We store the information in a field |
| 65 | extending the regular ELF linker hash table. */ |
| 66 | |
| 67 | /* This structure keeps track of the number of PC relative relocs we |
| 68 | have copied for a given symbol. */ |
| 69 | |
| 70 | struct elf_sh64_pcrel_relocs_copied |
| 71 | { |
| 72 | /* Next section. */ |
| 73 | struct elf_sh64_pcrel_relocs_copied *next; |
| 74 | /* A section in dynobj. */ |
| 75 | asection *section; |
| 76 | /* Number of relocs copied in this section. */ |
| 77 | bfd_size_type count; |
| 78 | }; |
| 79 | |
| 80 | /* sh ELF linker hash entry. */ |
| 81 | |
| 82 | struct elf_sh64_link_hash_entry |
| 83 | { |
| 84 | struct elf_link_hash_entry root; |
| 85 | |
| 86 | bfd_vma datalabel_got_offset; |
| 87 | |
| 88 | /* Number of PC relative relocs copied for this symbol. */ |
| 89 | struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied; |
| 90 | }; |
| 91 | |
| 92 | /* sh ELF linker hash table. */ |
| 93 | |
| 94 | struct elf_sh64_link_hash_table |
| 95 | { |
| 96 | struct elf_link_hash_table root; |
| 97 | }; |
| 98 | |
| 99 | /* Traverse an sh ELF linker hash table. */ |
| 100 | |
| 101 | #define sh64_elf64_link_hash_traverse(table, func, info) \ |
| 102 | (elf_link_hash_traverse \ |
| 103 | (&(table)->root, \ |
| 104 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
| 105 | (info))) |
| 106 | |
| 107 | /* Get the sh ELF linker hash table from a link_info structure. */ |
| 108 | |
| 109 | #define sh64_elf64_hash_table(p) \ |
| 110 | ((struct elf_sh64_link_hash_table *) ((p)->hash)) |
| 111 | |
| 112 | static bfd_reloc_status_type sh_elf64_ignore_reloc |
| 113 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 114 | static bfd_reloc_status_type sh_elf64_reloc |
| 115 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 116 | |
| 117 | static reloc_howto_type sh_elf64_howto_table[] = { |
| 118 | /* No relocation. */ |
| 119 | HOWTO (R_SH_NONE, /* type */ |
| 120 | 0, /* rightshift */ |
| 121 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 122 | 0, /* bitsize */ |
| 123 | FALSE, /* pc_relative */ |
| 124 | 0, /* bitpos */ |
| 125 | complain_overflow_dont, /* complain_on_overflow */ |
| 126 | sh_elf64_ignore_reloc, /* special_function */ |
| 127 | "R_SH_NONE", /* name */ |
| 128 | FALSE, /* partial_inplace */ |
| 129 | 0, /* src_mask */ |
| 130 | 0, /* dst_mask */ |
| 131 | FALSE), /* pcrel_offset */ |
| 132 | |
| 133 | /* 32 bit absolute relocation. Setting partial_inplace to TRUE and |
| 134 | src_mask to a non-zero value is similar to the COFF toolchain. */ |
| 135 | HOWTO (R_SH_DIR32, /* type */ |
| 136 | 0, /* rightshift */ |
| 137 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 138 | 32, /* bitsize */ |
| 139 | FALSE, /* pc_relative */ |
| 140 | 0, /* bitpos */ |
| 141 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 142 | sh_elf64_reloc, /* special_function */ |
| 143 | "R_SH_DIR32", /* name */ |
| 144 | TRUE, /* partial_inplace */ |
| 145 | 0xffffffff, /* src_mask */ |
| 146 | 0xffffffff, /* dst_mask */ |
| 147 | FALSE), /* pcrel_offset */ |
| 148 | |
| 149 | /* 32 bit PC relative relocation. */ |
| 150 | HOWTO (R_SH_REL32, /* type */ |
| 151 | 0, /* rightshift */ |
| 152 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 153 | 32, /* bitsize */ |
| 154 | TRUE, /* pc_relative */ |
| 155 | 0, /* bitpos */ |
| 156 | complain_overflow_signed, /* complain_on_overflow */ |
| 157 | sh_elf64_ignore_reloc, /* special_function */ |
| 158 | "R_SH_REL32", /* name */ |
| 159 | FALSE, /* partial_inplace */ |
| 160 | 0, /* src_mask */ |
| 161 | 0xffffffff, /* dst_mask */ |
| 162 | TRUE), /* pcrel_offset */ |
| 163 | |
| 164 | /* For 32-bit sh, this is R_SH_DIR8WPN. */ |
| 165 | EMPTY_HOWTO (3), |
| 166 | |
| 167 | /* For 32-bit sh, this is R_SH_IND12W. */ |
| 168 | EMPTY_HOWTO (4), |
| 169 | |
| 170 | /* For 32-bit sh, this is R_SH_DIR8WPL. */ |
| 171 | EMPTY_HOWTO (5), |
| 172 | |
| 173 | /* For 32-bit sh, this is R_SH_DIR8WPZ. */ |
| 174 | EMPTY_HOWTO (6), |
| 175 | |
| 176 | /* For 32-bit sh, this is R_SH_DIR8BP. */ |
| 177 | EMPTY_HOWTO (7), |
| 178 | |
| 179 | /* For 32-bit sh, this is R_SH_DIR8W. */ |
| 180 | EMPTY_HOWTO (8), |
| 181 | |
| 182 | /* For 32-bit sh, this is R_SH_DIR8L. */ |
| 183 | EMPTY_HOWTO (9), |
| 184 | |
| 185 | EMPTY_HOWTO (10), |
| 186 | EMPTY_HOWTO (11), |
| 187 | EMPTY_HOWTO (12), |
| 188 | EMPTY_HOWTO (13), |
| 189 | EMPTY_HOWTO (14), |
| 190 | EMPTY_HOWTO (15), |
| 191 | EMPTY_HOWTO (16), |
| 192 | EMPTY_HOWTO (17), |
| 193 | EMPTY_HOWTO (18), |
| 194 | EMPTY_HOWTO (19), |
| 195 | EMPTY_HOWTO (20), |
| 196 | EMPTY_HOWTO (21), |
| 197 | EMPTY_HOWTO (22), |
| 198 | EMPTY_HOWTO (23), |
| 199 | EMPTY_HOWTO (24), |
| 200 | |
| 201 | /* The remaining relocs are a GNU extension used for relaxing. The |
| 202 | final pass of the linker never needs to do anything with any of |
| 203 | these relocs. Any required operations are handled by the |
| 204 | relaxation code. */ |
| 205 | |
| 206 | /* A 16 bit switch table entry. This is generated for an expression |
| 207 | such as ``.word L1 - L2''. The offset holds the difference |
| 208 | between the reloc address and L2. */ |
| 209 | HOWTO (R_SH_SWITCH16, /* type */ |
| 210 | 0, /* rightshift */ |
| 211 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 212 | 16, /* bitsize */ |
| 213 | FALSE, /* pc_relative */ |
| 214 | 0, /* bitpos */ |
| 215 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 216 | sh_elf64_ignore_reloc, /* special_function */ |
| 217 | "R_SH_SWITCH16", /* name */ |
| 218 | FALSE, /* partial_inplace */ |
| 219 | 0, /* src_mask */ |
| 220 | 0, /* dst_mask */ |
| 221 | TRUE), /* pcrel_offset */ |
| 222 | |
| 223 | /* A 32 bit switch table entry. This is generated for an expression |
| 224 | such as ``.long L1 - L2''. The offset holds the difference |
| 225 | between the reloc address and L2. */ |
| 226 | HOWTO (R_SH_SWITCH32, /* type */ |
| 227 | 0, /* rightshift */ |
| 228 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 229 | 32, /* bitsize */ |
| 230 | FALSE, /* pc_relative */ |
| 231 | 0, /* bitpos */ |
| 232 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 233 | sh_elf64_ignore_reloc, /* special_function */ |
| 234 | "R_SH_SWITCH32", /* name */ |
| 235 | FALSE, /* partial_inplace */ |
| 236 | 0, /* src_mask */ |
| 237 | 0, /* dst_mask */ |
| 238 | TRUE), /* pcrel_offset */ |
| 239 | |
| 240 | /* For 32-bit sh, this is R_SH_USES. */ |
| 241 | EMPTY_HOWTO (27), |
| 242 | |
| 243 | /* For 32-bit sh, this is R_SH_COUNT. */ |
| 244 | EMPTY_HOWTO (28), |
| 245 | |
| 246 | /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation, |
| 247 | this might be emitted. When linker relaxation is implemented, we |
| 248 | might want to use it. */ |
| 249 | EMPTY_HOWTO (29), |
| 250 | |
| 251 | /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation, |
| 252 | this might be emitted. When linker relaxation is implemented, we |
| 253 | might want to use it. */ |
| 254 | EMPTY_HOWTO (30), |
| 255 | |
| 256 | /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation, |
| 257 | this might be emitted. When linker relaxation is implemented, we |
| 258 | might want to use it. */ |
| 259 | EMPTY_HOWTO (31), |
| 260 | |
| 261 | /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation, |
| 262 | this might be emitted. When linker relaxation is implemented, we |
| 263 | might want to use it. */ |
| 264 | EMPTY_HOWTO (32), |
| 265 | |
| 266 | /* An 8 bit switch table entry. This is generated for an expression |
| 267 | such as ``.word L1 - L2''. The offset holds the difference |
| 268 | between the reloc address and L2. */ |
| 269 | HOWTO (R_SH_SWITCH8, /* type */ |
| 270 | 0, /* rightshift */ |
| 271 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 272 | 8, /* bitsize */ |
| 273 | FALSE, /* pc_relative */ |
| 274 | 0, /* bitpos */ |
| 275 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 276 | sh_elf64_ignore_reloc, /* special_function */ |
| 277 | "R_SH_SWITCH8", /* name */ |
| 278 | FALSE, /* partial_inplace */ |
| 279 | 0, /* src_mask */ |
| 280 | 0, /* dst_mask */ |
| 281 | TRUE), /* pcrel_offset */ |
| 282 | |
| 283 | /* GNU extension to record C++ vtable hierarchy */ |
| 284 | HOWTO (R_SH_GNU_VTINHERIT, /* type */ |
| 285 | 0, /* rightshift */ |
| 286 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 287 | 0, /* bitsize */ |
| 288 | FALSE, /* pc_relative */ |
| 289 | 0, /* bitpos */ |
| 290 | complain_overflow_dont, /* complain_on_overflow */ |
| 291 | NULL, /* special_function */ |
| 292 | "R_SH_GNU_VTINHERIT", /* name */ |
| 293 | FALSE, /* partial_inplace */ |
| 294 | 0, /* src_mask */ |
| 295 | 0, /* dst_mask */ |
| 296 | FALSE), /* pcrel_offset */ |
| 297 | |
| 298 | /* GNU extension to record C++ vtable member usage */ |
| 299 | HOWTO (R_SH_GNU_VTENTRY, /* type */ |
| 300 | 0, /* rightshift */ |
| 301 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 302 | 0, /* bitsize */ |
| 303 | FALSE, /* pc_relative */ |
| 304 | 0, /* bitpos */ |
| 305 | complain_overflow_dont, /* complain_on_overflow */ |
| 306 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
| 307 | "R_SH_GNU_VTENTRY", /* name */ |
| 308 | FALSE, /* partial_inplace */ |
| 309 | 0, /* src_mask */ |
| 310 | 0, /* dst_mask */ |
| 311 | FALSE), /* pcrel_offset */ |
| 312 | |
| 313 | /* For 32-bit sh, this is R_SH_LOOP_START. */ |
| 314 | EMPTY_HOWTO (36), |
| 315 | |
| 316 | /* For 32-bit sh, this is R_SH_LOOP_END. */ |
| 317 | EMPTY_HOWTO (37), |
| 318 | |
| 319 | EMPTY_HOWTO (38), |
| 320 | EMPTY_HOWTO (39), |
| 321 | EMPTY_HOWTO (40), |
| 322 | EMPTY_HOWTO (41), |
| 323 | EMPTY_HOWTO (42), |
| 324 | EMPTY_HOWTO (43), |
| 325 | EMPTY_HOWTO (44), |
| 326 | |
| 327 | /* Used in SHLLI.L and SHLRI.L. */ |
| 328 | HOWTO (R_SH_DIR5U, /* type */ |
| 329 | 0, /* rightshift */ |
| 330 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 331 | 5, /* bitsize */ |
| 332 | FALSE, /* pc_relative */ |
| 333 | 10, /* bitpos */ |
| 334 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 335 | bfd_elf_generic_reloc, /* special_function */ |
| 336 | "R_SH_DIR5U", /* name */ |
| 337 | FALSE, /* partial_inplace */ |
| 338 | 0, /* src_mask */ |
| 339 | 0xfc00, /* dst_mask */ |
| 340 | FALSE), /* pcrel_offset */ |
| 341 | |
| 342 | /* Used in SHARI, SHLLI et al. */ |
| 343 | HOWTO (R_SH_DIR6U, /* type */ |
| 344 | 0, /* rightshift */ |
| 345 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 346 | 6, /* bitsize */ |
| 347 | FALSE, /* pc_relative */ |
| 348 | 10, /* bitpos */ |
| 349 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 350 | bfd_elf_generic_reloc, /* special_function */ |
| 351 | "R_SH_DIR6U", /* name */ |
| 352 | FALSE, /* partial_inplace */ |
| 353 | 0, /* src_mask */ |
| 354 | 0xfc00, /* dst_mask */ |
| 355 | FALSE), /* pcrel_offset */ |
| 356 | |
| 357 | /* Used in BxxI, LDHI.L et al. */ |
| 358 | HOWTO (R_SH_DIR6S, /* type */ |
| 359 | 0, /* rightshift */ |
| 360 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 361 | 6, /* bitsize */ |
| 362 | FALSE, /* pc_relative */ |
| 363 | 10, /* bitpos */ |
| 364 | complain_overflow_signed, /* complain_on_overflow */ |
| 365 | bfd_elf_generic_reloc, /* special_function */ |
| 366 | "R_SH_DIR6S", /* name */ |
| 367 | FALSE, /* partial_inplace */ |
| 368 | 0, /* src_mask */ |
| 369 | 0xfc00, /* dst_mask */ |
| 370 | FALSE), /* pcrel_offset */ |
| 371 | |
| 372 | /* Used in ADDI, ANDI et al. */ |
| 373 | HOWTO (R_SH_DIR10S, /* type */ |
| 374 | 0, /* rightshift */ |
| 375 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 376 | 10, /* bitsize */ |
| 377 | FALSE, /* pc_relative */ |
| 378 | 10, /* bitpos */ |
| 379 | complain_overflow_signed, /* complain_on_overflow */ |
| 380 | bfd_elf_generic_reloc, /* special_function */ |
| 381 | "R_SH_DIR10S", /* name */ |
| 382 | FALSE, /* partial_inplace */ |
| 383 | 0, /* src_mask */ |
| 384 | 0xffc00, /* dst_mask */ |
| 385 | FALSE), /* pcrel_offset */ |
| 386 | |
| 387 | /* Used in LD.UW, ST.W et al. */ |
| 388 | HOWTO (R_SH_DIR10SW, /* type */ |
| 389 | 1, /* rightshift */ |
| 390 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 391 | 11, /* bitsize */ |
| 392 | FALSE, /* pc_relative */ |
| 393 | 10, /* bitpos */ |
| 394 | complain_overflow_signed, /* complain_on_overflow */ |
| 395 | bfd_elf_generic_reloc, /* special_function */ |
| 396 | "R_SH_DIR10SW", /* name */ |
| 397 | FALSE, /* partial_inplace */ |
| 398 | 0, /* src_mask */ |
| 399 | 0xffc00, /* dst_mask */ |
| 400 | FALSE), /* pcrel_offset */ |
| 401 | |
| 402 | /* Used in LD.L, FLD.S et al. */ |
| 403 | HOWTO (R_SH_DIR10SL, /* type */ |
| 404 | 2, /* rightshift */ |
| 405 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 406 | 12, /* bitsize */ |
| 407 | FALSE, /* pc_relative */ |
| 408 | 10, /* bitpos */ |
| 409 | complain_overflow_signed, /* complain_on_overflow */ |
| 410 | bfd_elf_generic_reloc, /* special_function */ |
| 411 | "R_SH_DIR10SL", /* name */ |
| 412 | FALSE, /* partial_inplace */ |
| 413 | 0, /* src_mask */ |
| 414 | 0xffc00, /* dst_mask */ |
| 415 | FALSE), /* pcrel_offset */ |
| 416 | |
| 417 | /* Used in FLD.D, FST.P et al. */ |
| 418 | HOWTO (R_SH_DIR10SQ, /* type */ |
| 419 | 3, /* rightshift */ |
| 420 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 421 | 13, /* bitsize */ |
| 422 | FALSE, /* pc_relative */ |
| 423 | 10, /* bitpos */ |
| 424 | complain_overflow_signed, /* complain_on_overflow */ |
| 425 | bfd_elf_generic_reloc, /* special_function */ |
| 426 | "R_SH_DIR10SQ", /* name */ |
| 427 | FALSE, /* partial_inplace */ |
| 428 | 0, /* src_mask */ |
| 429 | 0xffc00, /* dst_mask */ |
| 430 | FALSE), /* pcrel_offset */ |
| 431 | |
| 432 | EMPTY_HOWTO (52), |
| 433 | EMPTY_HOWTO (53), |
| 434 | EMPTY_HOWTO (54), |
| 435 | EMPTY_HOWTO (55), |
| 436 | EMPTY_HOWTO (56), |
| 437 | EMPTY_HOWTO (57), |
| 438 | EMPTY_HOWTO (58), |
| 439 | EMPTY_HOWTO (59), |
| 440 | EMPTY_HOWTO (60), |
| 441 | EMPTY_HOWTO (61), |
| 442 | EMPTY_HOWTO (62), |
| 443 | EMPTY_HOWTO (63), |
| 444 | EMPTY_HOWTO (64), |
| 445 | EMPTY_HOWTO (65), |
| 446 | EMPTY_HOWTO (66), |
| 447 | EMPTY_HOWTO (67), |
| 448 | EMPTY_HOWTO (68), |
| 449 | EMPTY_HOWTO (69), |
| 450 | EMPTY_HOWTO (70), |
| 451 | EMPTY_HOWTO (71), |
| 452 | EMPTY_HOWTO (72), |
| 453 | EMPTY_HOWTO (73), |
| 454 | EMPTY_HOWTO (74), |
| 455 | EMPTY_HOWTO (75), |
| 456 | EMPTY_HOWTO (76), |
| 457 | EMPTY_HOWTO (77), |
| 458 | EMPTY_HOWTO (78), |
| 459 | EMPTY_HOWTO (79), |
| 460 | EMPTY_HOWTO (80), |
| 461 | EMPTY_HOWTO (81), |
| 462 | EMPTY_HOWTO (82), |
| 463 | EMPTY_HOWTO (83), |
| 464 | EMPTY_HOWTO (84), |
| 465 | EMPTY_HOWTO (85), |
| 466 | EMPTY_HOWTO (86), |
| 467 | EMPTY_HOWTO (87), |
| 468 | EMPTY_HOWTO (88), |
| 469 | EMPTY_HOWTO (89), |
| 470 | EMPTY_HOWTO (90), |
| 471 | EMPTY_HOWTO (91), |
| 472 | EMPTY_HOWTO (92), |
| 473 | EMPTY_HOWTO (93), |
| 474 | EMPTY_HOWTO (94), |
| 475 | EMPTY_HOWTO (95), |
| 476 | EMPTY_HOWTO (96), |
| 477 | EMPTY_HOWTO (97), |
| 478 | EMPTY_HOWTO (98), |
| 479 | EMPTY_HOWTO (99), |
| 480 | EMPTY_HOWTO (100), |
| 481 | EMPTY_HOWTO (101), |
| 482 | EMPTY_HOWTO (102), |
| 483 | EMPTY_HOWTO (103), |
| 484 | EMPTY_HOWTO (104), |
| 485 | EMPTY_HOWTO (105), |
| 486 | EMPTY_HOWTO (106), |
| 487 | EMPTY_HOWTO (107), |
| 488 | EMPTY_HOWTO (108), |
| 489 | EMPTY_HOWTO (109), |
| 490 | EMPTY_HOWTO (110), |
| 491 | EMPTY_HOWTO (111), |
| 492 | EMPTY_HOWTO (112), |
| 493 | EMPTY_HOWTO (113), |
| 494 | EMPTY_HOWTO (114), |
| 495 | EMPTY_HOWTO (115), |
| 496 | EMPTY_HOWTO (116), |
| 497 | EMPTY_HOWTO (117), |
| 498 | EMPTY_HOWTO (118), |
| 499 | EMPTY_HOWTO (119), |
| 500 | EMPTY_HOWTO (120), |
| 501 | EMPTY_HOWTO (121), |
| 502 | EMPTY_HOWTO (122), |
| 503 | EMPTY_HOWTO (123), |
| 504 | EMPTY_HOWTO (124), |
| 505 | EMPTY_HOWTO (125), |
| 506 | EMPTY_HOWTO (126), |
| 507 | EMPTY_HOWTO (127), |
| 508 | EMPTY_HOWTO (128), |
| 509 | EMPTY_HOWTO (129), |
| 510 | EMPTY_HOWTO (130), |
| 511 | EMPTY_HOWTO (131), |
| 512 | EMPTY_HOWTO (132), |
| 513 | EMPTY_HOWTO (133), |
| 514 | EMPTY_HOWTO (134), |
| 515 | EMPTY_HOWTO (135), |
| 516 | EMPTY_HOWTO (136), |
| 517 | EMPTY_HOWTO (137), |
| 518 | EMPTY_HOWTO (138), |
| 519 | EMPTY_HOWTO (139), |
| 520 | EMPTY_HOWTO (140), |
| 521 | EMPTY_HOWTO (141), |
| 522 | EMPTY_HOWTO (142), |
| 523 | EMPTY_HOWTO (143), |
| 524 | EMPTY_HOWTO (144), |
| 525 | EMPTY_HOWTO (145), |
| 526 | EMPTY_HOWTO (146), |
| 527 | EMPTY_HOWTO (147), |
| 528 | EMPTY_HOWTO (148), |
| 529 | EMPTY_HOWTO (149), |
| 530 | EMPTY_HOWTO (150), |
| 531 | EMPTY_HOWTO (151), |
| 532 | EMPTY_HOWTO (152), |
| 533 | EMPTY_HOWTO (153), |
| 534 | EMPTY_HOWTO (154), |
| 535 | EMPTY_HOWTO (155), |
| 536 | EMPTY_HOWTO (156), |
| 537 | EMPTY_HOWTO (157), |
| 538 | EMPTY_HOWTO (158), |
| 539 | EMPTY_HOWTO (159), |
| 540 | |
| 541 | /* Relocs for dynamic linking for 32-bit SH would follow. We don't have |
| 542 | any dynamic linking support for 64-bit SH at present. */ |
| 543 | |
| 544 | EMPTY_HOWTO (160), |
| 545 | EMPTY_HOWTO (161), |
| 546 | EMPTY_HOWTO (162), |
| 547 | EMPTY_HOWTO (163), |
| 548 | EMPTY_HOWTO (164), |
| 549 | EMPTY_HOWTO (165), |
| 550 | EMPTY_HOWTO (166), |
| 551 | EMPTY_HOWTO (167), |
| 552 | EMPTY_HOWTO (168), |
| 553 | |
| 554 | /* Back to SH5 relocations. */ |
| 555 | /* Used in MOVI and SHORI (x & 65536). */ |
| 556 | HOWTO (R_SH_GOT_LOW16, /* type */ |
| 557 | 0, /* rightshift */ |
| 558 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 559 | 64, /* bitsize */ |
| 560 | FALSE, /* pc_relative */ |
| 561 | 10, /* bitpos */ |
| 562 | complain_overflow_dont, /* complain_on_overflow */ |
| 563 | bfd_elf_generic_reloc, /* special_function */ |
| 564 | "R_SH_GOT_LOW16", /* name */ |
| 565 | FALSE, /* partial_inplace */ |
| 566 | 0, /* src_mask */ |
| 567 | 0x3fffc00, /* dst_mask */ |
| 568 | FALSE), /* pcrel_offset */ |
| 569 | |
| 570 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ |
| 571 | HOWTO (R_SH_GOT_MEDLOW16, /* type */ |
| 572 | 16, /* rightshift */ |
| 573 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 574 | 64, /* bitsize */ |
| 575 | FALSE, /* pc_relative */ |
| 576 | 10, /* bitpos */ |
| 577 | complain_overflow_dont, /* complain_on_overflow */ |
| 578 | bfd_elf_generic_reloc, /* special_function */ |
| 579 | "R_SH_GOT_MEDLOW16", /* name */ |
| 580 | FALSE, /* partial_inplace */ |
| 581 | 0, /* src_mask */ |
| 582 | 0x3fffc00, /* dst_mask */ |
| 583 | FALSE), /* pcrel_offset */ |
| 584 | |
| 585 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ |
| 586 | HOWTO (R_SH_GOT_MEDHI16, /* type */ |
| 587 | 32, /* rightshift */ |
| 588 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 589 | 64, /* bitsize */ |
| 590 | FALSE, /* pc_relative */ |
| 591 | 10, /* bitpos */ |
| 592 | complain_overflow_dont, /* complain_on_overflow */ |
| 593 | bfd_elf_generic_reloc, /* special_function */ |
| 594 | "R_SH_GOT_MEDHI16", /* name */ |
| 595 | FALSE, /* partial_inplace */ |
| 596 | 0, /* src_mask */ |
| 597 | 0x3fffc00, /* dst_mask */ |
| 598 | FALSE), /* pcrel_offset */ |
| 599 | |
| 600 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ |
| 601 | HOWTO (R_SH_GOT_HI16, /* type */ |
| 602 | 48, /* rightshift */ |
| 603 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 604 | 64, /* bitsize */ |
| 605 | FALSE, /* pc_relative */ |
| 606 | 10, /* bitpos */ |
| 607 | complain_overflow_dont, /* complain_on_overflow */ |
| 608 | bfd_elf_generic_reloc, /* special_function */ |
| 609 | "R_SH_GOT_HI16", /* name */ |
| 610 | FALSE, /* partial_inplace */ |
| 611 | 0, /* src_mask */ |
| 612 | 0x3fffc00, /* dst_mask */ |
| 613 | FALSE), /* pcrel_offset */ |
| 614 | |
| 615 | /* Used in MOVI and SHORI (x & 65536). */ |
| 616 | HOWTO (R_SH_GOTPLT_LOW16, /* type */ |
| 617 | 0, /* rightshift */ |
| 618 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 619 | 64, /* bitsize */ |
| 620 | FALSE, /* pc_relative */ |
| 621 | 10, /* bitpos */ |
| 622 | complain_overflow_dont, /* complain_on_overflow */ |
| 623 | bfd_elf_generic_reloc, /* special_function */ |
| 624 | "R_SH_GOTPLT_LOW16", /* name */ |
| 625 | FALSE, /* partial_inplace */ |
| 626 | 0, /* src_mask */ |
| 627 | 0x3fffc00, /* dst_mask */ |
| 628 | FALSE), /* pcrel_offset */ |
| 629 | |
| 630 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ |
| 631 | HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */ |
| 632 | 16, /* rightshift */ |
| 633 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 634 | 64, /* bitsize */ |
| 635 | FALSE, /* pc_relative */ |
| 636 | 10, /* bitpos */ |
| 637 | complain_overflow_dont, /* complain_on_overflow */ |
| 638 | bfd_elf_generic_reloc, /* special_function */ |
| 639 | "R_SH_GOTPLT_MEDLOW16", /* name */ |
| 640 | FALSE, /* partial_inplace */ |
| 641 | 0, /* src_mask */ |
| 642 | 0x3fffc00, /* dst_mask */ |
| 643 | FALSE), /* pcrel_offset */ |
| 644 | |
| 645 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ |
| 646 | HOWTO (R_SH_GOTPLT_MEDHI16, /* type */ |
| 647 | 32, /* rightshift */ |
| 648 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 649 | 64, /* bitsize */ |
| 650 | FALSE, /* pc_relative */ |
| 651 | 10, /* bitpos */ |
| 652 | complain_overflow_dont, /* complain_on_overflow */ |
| 653 | bfd_elf_generic_reloc, /* special_function */ |
| 654 | "R_SH_GOTPLT_MEDHI16", /* name */ |
| 655 | FALSE, /* partial_inplace */ |
| 656 | 0, /* src_mask */ |
| 657 | 0x3fffc00, /* dst_mask */ |
| 658 | FALSE), /* pcrel_offset */ |
| 659 | |
| 660 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ |
| 661 | HOWTO (R_SH_GOTPLT_HI16, /* type */ |
| 662 | 48, /* rightshift */ |
| 663 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 664 | 64, /* bitsize */ |
| 665 | FALSE, /* pc_relative */ |
| 666 | 10, /* bitpos */ |
| 667 | complain_overflow_dont, /* complain_on_overflow */ |
| 668 | bfd_elf_generic_reloc, /* special_function */ |
| 669 | "R_SH_GOTPLT_HI16", /* name */ |
| 670 | FALSE, /* partial_inplace */ |
| 671 | 0, /* src_mask */ |
| 672 | 0x3fffc00, /* dst_mask */ |
| 673 | FALSE), /* pcrel_offset */ |
| 674 | |
| 675 | /* Used in MOVI and SHORI (x & 65536). */ |
| 676 | HOWTO (R_SH_PLT_LOW16, /* type */ |
| 677 | 0, /* rightshift */ |
| 678 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 679 | 64, /* bitsize */ |
| 680 | TRUE, /* pc_relative */ |
| 681 | 10, /* bitpos */ |
| 682 | complain_overflow_dont, /* complain_on_overflow */ |
| 683 | bfd_elf_generic_reloc, /* special_function */ |
| 684 | "R_SH_PLT_LOW16", /* name */ |
| 685 | FALSE, /* partial_inplace */ |
| 686 | 0, /* src_mask */ |
| 687 | 0x3fffc00, /* dst_mask */ |
| 688 | TRUE), /* pcrel_offset */ |
| 689 | |
| 690 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ |
| 691 | HOWTO (R_SH_PLT_MEDLOW16, /* type */ |
| 692 | 16, /* rightshift */ |
| 693 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 694 | 64, /* bitsize */ |
| 695 | TRUE, /* pc_relative */ |
| 696 | 10, /* bitpos */ |
| 697 | complain_overflow_dont, /* complain_on_overflow */ |
| 698 | bfd_elf_generic_reloc, /* special_function */ |
| 699 | "R_SH_PLT_MEDLOW16", /* name */ |
| 700 | FALSE, /* partial_inplace */ |
| 701 | 0, /* src_mask */ |
| 702 | 0x3fffc00, /* dst_mask */ |
| 703 | TRUE), /* pcrel_offset */ |
| 704 | |
| 705 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ |
| 706 | HOWTO (R_SH_PLT_MEDHI16, /* type */ |
| 707 | 32, /* rightshift */ |
| 708 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 709 | 64, /* bitsize */ |
| 710 | TRUE, /* pc_relative */ |
| 711 | 10, /* bitpos */ |
| 712 | complain_overflow_dont, /* complain_on_overflow */ |
| 713 | bfd_elf_generic_reloc, /* special_function */ |
| 714 | "R_SH_PLT_MEDHI16", /* name */ |
| 715 | FALSE, /* partial_inplace */ |
| 716 | 0, /* src_mask */ |
| 717 | 0x3fffc00, /* dst_mask */ |
| 718 | TRUE), /* pcrel_offset */ |
| 719 | |
| 720 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ |
| 721 | HOWTO (R_SH_PLT_HI16, /* type */ |
| 722 | 48, /* rightshift */ |
| 723 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 724 | 64, /* bitsize */ |
| 725 | TRUE, /* pc_relative */ |
| 726 | 10, /* bitpos */ |
| 727 | complain_overflow_dont, /* complain_on_overflow */ |
| 728 | bfd_elf_generic_reloc, /* special_function */ |
| 729 | "R_SH_PLT_HI16", /* name */ |
| 730 | FALSE, /* partial_inplace */ |
| 731 | 0, /* src_mask */ |
| 732 | 0x3fffc00, /* dst_mask */ |
| 733 | TRUE), /* pcrel_offset */ |
| 734 | |
| 735 | /* Used in MOVI and SHORI (x & 65536). */ |
| 736 | HOWTO (R_SH_GOTOFF_LOW16, /* type */ |
| 737 | 0, /* rightshift */ |
| 738 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 739 | 64, /* bitsize */ |
| 740 | FALSE, /* pc_relative */ |
| 741 | 10, /* bitpos */ |
| 742 | complain_overflow_dont, /* complain_on_overflow */ |
| 743 | bfd_elf_generic_reloc, /* special_function */ |
| 744 | "R_SH_GOTOFF_LOW16", /* name */ |
| 745 | FALSE, /* partial_inplace */ |
| 746 | 0, /* src_mask */ |
| 747 | 0x3fffc00, /* dst_mask */ |
| 748 | FALSE), /* pcrel_offset */ |
| 749 | |
| 750 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ |
| 751 | HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */ |
| 752 | 16, /* rightshift */ |
| 753 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 754 | 64, /* bitsize */ |
| 755 | FALSE, /* pc_relative */ |
| 756 | 10, /* bitpos */ |
| 757 | complain_overflow_dont, /* complain_on_overflow */ |
| 758 | bfd_elf_generic_reloc, /* special_function */ |
| 759 | "R_SH_GOTOFF_MEDLOW16", /* name */ |
| 760 | FALSE, /* partial_inplace */ |
| 761 | 0, /* src_mask */ |
| 762 | 0x3fffc00, /* dst_mask */ |
| 763 | FALSE), /* pcrel_offset */ |
| 764 | |
| 765 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ |
| 766 | HOWTO (R_SH_GOTOFF_MEDHI16, /* type */ |
| 767 | 32, /* rightshift */ |
| 768 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 769 | 64, /* bitsize */ |
| 770 | FALSE, /* pc_relative */ |
| 771 | 10, /* bitpos */ |
| 772 | complain_overflow_dont, /* complain_on_overflow */ |
| 773 | bfd_elf_generic_reloc, /* special_function */ |
| 774 | "R_SH_GOTOFF_MEDHI16", /* name */ |
| 775 | FALSE, /* partial_inplace */ |
| 776 | 0, /* src_mask */ |
| 777 | 0x3fffc00, /* dst_mask */ |
| 778 | FALSE), /* pcrel_offset */ |
| 779 | |
| 780 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ |
| 781 | HOWTO (R_SH_GOTOFF_HI16, /* type */ |
| 782 | 48, /* rightshift */ |
| 783 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 784 | 64, /* bitsize */ |
| 785 | FALSE, /* pc_relative */ |
| 786 | 10, /* bitpos */ |
| 787 | complain_overflow_dont, /* complain_on_overflow */ |
| 788 | bfd_elf_generic_reloc, /* special_function */ |
| 789 | "R_SH_GOTOFF_HI16", /* name */ |
| 790 | FALSE, /* partial_inplace */ |
| 791 | 0, /* src_mask */ |
| 792 | 0x3fffc00, /* dst_mask */ |
| 793 | FALSE), /* pcrel_offset */ |
| 794 | |
| 795 | /* Used in MOVI and SHORI (x & 65536). */ |
| 796 | HOWTO (R_SH_GOTPC_LOW16, /* type */ |
| 797 | 0, /* rightshift */ |
| 798 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 799 | 64, /* bitsize */ |
| 800 | TRUE, /* pc_relative */ |
| 801 | 10, /* bitpos */ |
| 802 | complain_overflow_dont, /* complain_on_overflow */ |
| 803 | bfd_elf_generic_reloc, /* special_function */ |
| 804 | "R_SH_GOTPC_LOW16", /* name */ |
| 805 | FALSE, /* partial_inplace */ |
| 806 | 0, /* src_mask */ |
| 807 | 0x3fffc00, /* dst_mask */ |
| 808 | TRUE), /* pcrel_offset */ |
| 809 | |
| 810 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ |
| 811 | HOWTO (R_SH_GOTPC_MEDLOW16, /* type */ |
| 812 | 16, /* rightshift */ |
| 813 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 814 | 64, /* bitsize */ |
| 815 | TRUE, /* pc_relative */ |
| 816 | 10, /* bitpos */ |
| 817 | complain_overflow_dont, /* complain_on_overflow */ |
| 818 | bfd_elf_generic_reloc, /* special_function */ |
| 819 | "R_SH_GOTPC_MEDLOW16", /* name */ |
| 820 | FALSE, /* partial_inplace */ |
| 821 | 0, /* src_mask */ |
| 822 | 0x3fffc00, /* dst_mask */ |
| 823 | TRUE), /* pcrel_offset */ |
| 824 | |
| 825 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ |
| 826 | HOWTO (R_SH_GOTPC_MEDHI16, /* type */ |
| 827 | 32, /* rightshift */ |
| 828 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 829 | 64, /* bitsize */ |
| 830 | TRUE, /* pc_relative */ |
| 831 | 10, /* bitpos */ |
| 832 | complain_overflow_dont, /* complain_on_overflow */ |
| 833 | bfd_elf_generic_reloc, /* special_function */ |
| 834 | "R_SH_GOTPC_MEDHI16", /* name */ |
| 835 | FALSE, /* partial_inplace */ |
| 836 | 0, /* src_mask */ |
| 837 | 0x3fffc00, /* dst_mask */ |
| 838 | TRUE), /* pcrel_offset */ |
| 839 | |
| 840 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ |
| 841 | HOWTO (R_SH_GOTPC_HI16, /* type */ |
| 842 | 48, /* rightshift */ |
| 843 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 844 | 64, /* bitsize */ |
| 845 | TRUE, /* pc_relative */ |
| 846 | 10, /* bitpos */ |
| 847 | complain_overflow_dont, /* complain_on_overflow */ |
| 848 | bfd_elf_generic_reloc, /* special_function */ |
| 849 | "R_SH_GOTPC_HI16", /* name */ |
| 850 | FALSE, /* partial_inplace */ |
| 851 | 0, /* src_mask */ |
| 852 | 0x3fffc00, /* dst_mask */ |
| 853 | TRUE), /* pcrel_offset */ |
| 854 | |
| 855 | /* Used in LD.L, FLD.S et al. */ |
| 856 | HOWTO (R_SH_GOT10BY4, /* type */ |
| 857 | 2, /* rightshift */ |
| 858 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 859 | 12, /* bitsize */ |
| 860 | FALSE, /* pc_relative */ |
| 861 | 10, /* bitpos */ |
| 862 | complain_overflow_signed, /* complain_on_overflow */ |
| 863 | bfd_elf_generic_reloc, /* special_function */ |
| 864 | "R_SH_GOT10BY4", /* name */ |
| 865 | FALSE, /* partial_inplace */ |
| 866 | 0, /* src_mask */ |
| 867 | 0xffc00, /* dst_mask */ |
| 868 | FALSE), /* pcrel_offset */ |
| 869 | |
| 870 | /* Used in LD.L, FLD.S et al. */ |
| 871 | HOWTO (R_SH_GOTPLT10BY4, /* type */ |
| 872 | 2, /* rightshift */ |
| 873 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 874 | 12, /* bitsize */ |
| 875 | FALSE, /* pc_relative */ |
| 876 | 10, /* bitpos */ |
| 877 | complain_overflow_signed, /* complain_on_overflow */ |
| 878 | bfd_elf_generic_reloc, /* special_function */ |
| 879 | "R_SH_GOTPLT10BY4", /* name */ |
| 880 | FALSE, /* partial_inplace */ |
| 881 | 0, /* src_mask */ |
| 882 | 0xffc00, /* dst_mask */ |
| 883 | FALSE), /* pcrel_offset */ |
| 884 | |
| 885 | /* Used in FLD.D, FST.P et al. */ |
| 886 | HOWTO (R_SH_GOT10BY8, /* type */ |
| 887 | 3, /* rightshift */ |
| 888 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 889 | 13, /* bitsize */ |
| 890 | FALSE, /* pc_relative */ |
| 891 | 10, /* bitpos */ |
| 892 | complain_overflow_signed, /* complain_on_overflow */ |
| 893 | bfd_elf_generic_reloc, /* special_function */ |
| 894 | "R_SH_GOT10BY8", /* name */ |
| 895 | FALSE, /* partial_inplace */ |
| 896 | 0, /* src_mask */ |
| 897 | 0xffc00, /* dst_mask */ |
| 898 | FALSE), /* pcrel_offset */ |
| 899 | |
| 900 | /* Used in FLD.D, FST.P et al. */ |
| 901 | HOWTO (R_SH_GOTPLT10BY8, /* type */ |
| 902 | 3, /* rightshift */ |
| 903 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 904 | 13, /* bitsize */ |
| 905 | FALSE, /* pc_relative */ |
| 906 | 10, /* bitpos */ |
| 907 | complain_overflow_signed, /* complain_on_overflow */ |
| 908 | bfd_elf_generic_reloc, /* special_function */ |
| 909 | "R_SH_GOTPLT10BY8", /* name */ |
| 910 | FALSE, /* partial_inplace */ |
| 911 | 0, /* src_mask */ |
| 912 | 0xffc00, /* dst_mask */ |
| 913 | FALSE), /* pcrel_offset */ |
| 914 | |
| 915 | HOWTO (R_SH_COPY64, /* type */ |
| 916 | 0, /* rightshift */ |
| 917 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 918 | 64, /* bitsize */ |
| 919 | FALSE, /* pc_relative */ |
| 920 | 0, /* bitpos */ |
| 921 | complain_overflow_dont, /* complain_on_overflow */ |
| 922 | bfd_elf_generic_reloc, /* special_function */ |
| 923 | "R_SH_COPY64", /* name */ |
| 924 | FALSE, /* partial_inplace */ |
| 925 | 0, /* src_mask */ |
| 926 | ((bfd_vma) 0) - 1, /* dst_mask */ |
| 927 | FALSE), /* pcrel_offset */ |
| 928 | |
| 929 | HOWTO (R_SH_GLOB_DAT64, /* type */ |
| 930 | 0, /* rightshift */ |
| 931 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 932 | 64, /* bitsize */ |
| 933 | FALSE, /* pc_relative */ |
| 934 | 0, /* bitpos */ |
| 935 | complain_overflow_dont, /* complain_on_overflow */ |
| 936 | bfd_elf_generic_reloc, /* special_function */ |
| 937 | "R_SH_GLOB_DAT64", /* name */ |
| 938 | FALSE, /* partial_inplace */ |
| 939 | 0, /* src_mask */ |
| 940 | ((bfd_vma) 0) - 1, /* dst_mask */ |
| 941 | FALSE), /* pcrel_offset */ |
| 942 | |
| 943 | HOWTO (R_SH_JMP_SLOT64, /* type */ |
| 944 | 0, /* rightshift */ |
| 945 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 946 | 64, /* bitsize */ |
| 947 | FALSE, /* pc_relative */ |
| 948 | 0, /* bitpos */ |
| 949 | complain_overflow_dont, /* complain_on_overflow */ |
| 950 | bfd_elf_generic_reloc, /* special_function */ |
| 951 | "R_SH_JMP_SLOT64", /* name */ |
| 952 | FALSE, /* partial_inplace */ |
| 953 | 0, /* src_mask */ |
| 954 | ((bfd_vma) 0) - 1, /* dst_mask */ |
| 955 | FALSE), /* pcrel_offset */ |
| 956 | |
| 957 | HOWTO (R_SH_RELATIVE64, /* type */ |
| 958 | 0, /* rightshift */ |
| 959 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 960 | 64, /* bitsize */ |
| 961 | FALSE, /* pc_relative */ |
| 962 | 0, /* bitpos */ |
| 963 | complain_overflow_dont, /* complain_on_overflow */ |
| 964 | bfd_elf_generic_reloc, /* special_function */ |
| 965 | "R_SH_RELATIVE64", /* name */ |
| 966 | FALSE, /* partial_inplace */ |
| 967 | 0, /* src_mask */ |
| 968 | ((bfd_vma) 0) - 1, /* dst_mask */ |
| 969 | FALSE), /* pcrel_offset */ |
| 970 | |
| 971 | EMPTY_HOWTO (197), |
| 972 | EMPTY_HOWTO (198), |
| 973 | EMPTY_HOWTO (199), |
| 974 | EMPTY_HOWTO (200), |
| 975 | EMPTY_HOWTO (201), |
| 976 | EMPTY_HOWTO (202), |
| 977 | EMPTY_HOWTO (203), |
| 978 | EMPTY_HOWTO (204), |
| 979 | EMPTY_HOWTO (205), |
| 980 | EMPTY_HOWTO (206), |
| 981 | EMPTY_HOWTO (207), |
| 982 | EMPTY_HOWTO (208), |
| 983 | EMPTY_HOWTO (209), |
| 984 | EMPTY_HOWTO (210), |
| 985 | EMPTY_HOWTO (211), |
| 986 | EMPTY_HOWTO (212), |
| 987 | EMPTY_HOWTO (213), |
| 988 | EMPTY_HOWTO (214), |
| 989 | EMPTY_HOWTO (215), |
| 990 | EMPTY_HOWTO (216), |
| 991 | EMPTY_HOWTO (217), |
| 992 | EMPTY_HOWTO (218), |
| 993 | EMPTY_HOWTO (219), |
| 994 | EMPTY_HOWTO (220), |
| 995 | EMPTY_HOWTO (221), |
| 996 | EMPTY_HOWTO (222), |
| 997 | EMPTY_HOWTO (223), |
| 998 | EMPTY_HOWTO (224), |
| 999 | EMPTY_HOWTO (225), |
| 1000 | EMPTY_HOWTO (226), |
| 1001 | EMPTY_HOWTO (227), |
| 1002 | EMPTY_HOWTO (228), |
| 1003 | EMPTY_HOWTO (229), |
| 1004 | EMPTY_HOWTO (230), |
| 1005 | EMPTY_HOWTO (231), |
| 1006 | EMPTY_HOWTO (232), |
| 1007 | EMPTY_HOWTO (233), |
| 1008 | EMPTY_HOWTO (234), |
| 1009 | EMPTY_HOWTO (235), |
| 1010 | EMPTY_HOWTO (236), |
| 1011 | EMPTY_HOWTO (237), |
| 1012 | EMPTY_HOWTO (238), |
| 1013 | EMPTY_HOWTO (239), |
| 1014 | EMPTY_HOWTO (240), |
| 1015 | EMPTY_HOWTO (241), |
| 1016 | |
| 1017 | /* Relocations for SHmedia code. None of these are partial_inplace or |
| 1018 | use the field being relocated. */ |
| 1019 | |
| 1020 | /* The assembler will generate this reloc before a block of SHmedia |
| 1021 | instructions. A section should be processed as assuming it contains |
| 1022 | data, unless this reloc is seen. Note that a block of SHcompact |
| 1023 | instructions are instead preceded by R_SH_CODE. |
| 1024 | This is currently not implemented, but should be used for SHmedia |
| 1025 | linker relaxation. */ |
| 1026 | HOWTO (R_SH_SHMEDIA_CODE, /* type */ |
| 1027 | 0, /* rightshift */ |
| 1028 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1029 | 0, /* bitsize */ |
| 1030 | FALSE, /* pc_relative */ |
| 1031 | 0, /* bitpos */ |
| 1032 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 1033 | sh_elf64_ignore_reloc, /* special_function */ |
| 1034 | "R_SH_SHMEDIA_CODE", /* name */ |
| 1035 | FALSE, /* partial_inplace */ |
| 1036 | 0, /* src_mask */ |
| 1037 | 0, /* dst_mask */ |
| 1038 | FALSE), /* pcrel_offset */ |
| 1039 | |
| 1040 | /* The assembler will generate this reloc at a PTA or PTB instruction, |
| 1041 | and the linker checks the right type of target, or changes a PTA to a |
| 1042 | PTB, if the original insn was PT. */ |
| 1043 | HOWTO (R_SH_PT_16, /* type */ |
| 1044 | 2, /* rightshift */ |
| 1045 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1046 | 18, /* bitsize */ |
| 1047 | TRUE, /* pc_relative */ |
| 1048 | 10, /* bitpos */ |
| 1049 | complain_overflow_signed, /* complain_on_overflow */ |
| 1050 | bfd_elf_generic_reloc, /* special_function */ |
| 1051 | "R_SH_PT_16", /* name */ |
| 1052 | FALSE, /* partial_inplace */ |
| 1053 | 0, /* src_mask */ |
| 1054 | 0x3fffc00, /* dst_mask */ |
| 1055 | TRUE), /* pcrel_offset */ |
| 1056 | |
| 1057 | /* Used in unexpanded MOVI. */ |
| 1058 | HOWTO (R_SH_IMMS16, /* type */ |
| 1059 | 0, /* rightshift */ |
| 1060 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1061 | 16, /* bitsize */ |
| 1062 | FALSE, /* pc_relative */ |
| 1063 | 10, /* bitpos */ |
| 1064 | complain_overflow_signed, /* complain_on_overflow */ |
| 1065 | bfd_elf_generic_reloc, /* special_function */ |
| 1066 | "R_SH_IMMS16", /* name */ |
| 1067 | FALSE, /* partial_inplace */ |
| 1068 | 0, /* src_mask */ |
| 1069 | 0x3fffc00, /* dst_mask */ |
| 1070 | FALSE), /* pcrel_offset */ |
| 1071 | |
| 1072 | /* Used in SHORI. */ |
| 1073 | HOWTO (R_SH_IMMU16, /* type */ |
| 1074 | 0, /* rightshift */ |
| 1075 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1076 | 16, /* bitsize */ |
| 1077 | FALSE, /* pc_relative */ |
| 1078 | 10, /* bitpos */ |
| 1079 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 1080 | bfd_elf_generic_reloc, /* special_function */ |
| 1081 | "R_SH_IMMU16", /* name */ |
| 1082 | FALSE, /* partial_inplace */ |
| 1083 | 0, /* src_mask */ |
| 1084 | 0x3fffc00, /* dst_mask */ |
| 1085 | FALSE), /* pcrel_offset */ |
| 1086 | |
| 1087 | /* Used in MOVI and SHORI (x & 65536). */ |
| 1088 | HOWTO (R_SH_IMM_LOW16, /* type */ |
| 1089 | 0, /* rightshift */ |
| 1090 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1091 | 64, /* bitsize */ |
| 1092 | FALSE, /* pc_relative */ |
| 1093 | 10, /* bitpos */ |
| 1094 | complain_overflow_dont, /* complain_on_overflow */ |
| 1095 | bfd_elf_generic_reloc, /* special_function */ |
| 1096 | "R_SH_IMM_LOW16", /* name */ |
| 1097 | FALSE, /* partial_inplace */ |
| 1098 | 0, /* src_mask */ |
| 1099 | 0x3fffc00, /* dst_mask */ |
| 1100 | FALSE), /* pcrel_offset */ |
| 1101 | |
| 1102 | /* Used in MOVI and SHORI ((x - $) & 65536). */ |
| 1103 | HOWTO (R_SH_IMM_LOW16_PCREL, /* type */ |
| 1104 | 0, /* rightshift */ |
| 1105 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1106 | 64, /* bitsize */ |
| 1107 | TRUE, /* pc_relative */ |
| 1108 | 10, /* bitpos */ |
| 1109 | complain_overflow_dont, /* complain_on_overflow */ |
| 1110 | bfd_elf_generic_reloc, /* special_function */ |
| 1111 | "R_SH_IMM_LOW16_PCREL", /* name */ |
| 1112 | FALSE, /* partial_inplace */ |
| 1113 | 0, /* src_mask */ |
| 1114 | 0x3fffc00, /* dst_mask */ |
| 1115 | TRUE), /* pcrel_offset */ |
| 1116 | |
| 1117 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ |
| 1118 | HOWTO (R_SH_IMM_MEDLOW16, /* type */ |
| 1119 | 16, /* rightshift */ |
| 1120 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1121 | 64, /* bitsize */ |
| 1122 | FALSE, /* pc_relative */ |
| 1123 | 10, /* bitpos */ |
| 1124 | complain_overflow_dont, /* complain_on_overflow */ |
| 1125 | bfd_elf_generic_reloc, /* special_function */ |
| 1126 | "R_SH_IMM_MEDLOW16", /* name */ |
| 1127 | FALSE, /* partial_inplace */ |
| 1128 | 0, /* src_mask */ |
| 1129 | 0x3fffc00, /* dst_mask */ |
| 1130 | FALSE), /* pcrel_offset */ |
| 1131 | |
| 1132 | /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */ |
| 1133 | HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */ |
| 1134 | 16, /* rightshift */ |
| 1135 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1136 | 64, /* bitsize */ |
| 1137 | TRUE, /* pc_relative */ |
| 1138 | 10, /* bitpos */ |
| 1139 | complain_overflow_dont, /* complain_on_overflow */ |
| 1140 | bfd_elf_generic_reloc, /* special_function */ |
| 1141 | "R_SH_IMM_MEDLOW16_PCREL", /* name */ |
| 1142 | FALSE, /* partial_inplace */ |
| 1143 | 0, /* src_mask */ |
| 1144 | 0x3fffc00, /* dst_mask */ |
| 1145 | TRUE), /* pcrel_offset */ |
| 1146 | |
| 1147 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ |
| 1148 | HOWTO (R_SH_IMM_MEDHI16, /* type */ |
| 1149 | 32, /* rightshift */ |
| 1150 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1151 | 64, /* bitsize */ |
| 1152 | FALSE, /* pc_relative */ |
| 1153 | 10, /* bitpos */ |
| 1154 | complain_overflow_dont, /* complain_on_overflow */ |
| 1155 | bfd_elf_generic_reloc, /* special_function */ |
| 1156 | "R_SH_IMM_MEDHI16", /* name */ |
| 1157 | FALSE, /* partial_inplace */ |
| 1158 | 0, /* src_mask */ |
| 1159 | 0x3fffc00, /* dst_mask */ |
| 1160 | FALSE), /* pcrel_offset */ |
| 1161 | |
| 1162 | /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */ |
| 1163 | HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */ |
| 1164 | 32, /* rightshift */ |
| 1165 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1166 | 64, /* bitsize */ |
| 1167 | TRUE, /* pc_relative */ |
| 1168 | 10, /* bitpos */ |
| 1169 | complain_overflow_dont, /* complain_on_overflow */ |
| 1170 | bfd_elf_generic_reloc, /* special_function */ |
| 1171 | "R_SH_IMM_MEDHI16_PCREL", /* name */ |
| 1172 | FALSE, /* partial_inplace */ |
| 1173 | 0, /* src_mask */ |
| 1174 | 0x3fffc00, /* dst_mask */ |
| 1175 | TRUE), /* pcrel_offset */ |
| 1176 | |
| 1177 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ |
| 1178 | HOWTO (R_SH_IMM_HI16, /* type */ |
| 1179 | 48, /* rightshift */ |
| 1180 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1181 | 64, /* bitsize */ |
| 1182 | FALSE, /* pc_relative */ |
| 1183 | 10, /* bitpos */ |
| 1184 | complain_overflow_dont, /* complain_on_overflow */ |
| 1185 | bfd_elf_generic_reloc, /* special_function */ |
| 1186 | "R_SH_IMM_HI16", /* name */ |
| 1187 | FALSE, /* partial_inplace */ |
| 1188 | 0, /* src_mask */ |
| 1189 | 0x3fffc00, /* dst_mask */ |
| 1190 | FALSE), /* pcrel_offset */ |
| 1191 | |
| 1192 | /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */ |
| 1193 | HOWTO (R_SH_IMM_HI16_PCREL, /* type */ |
| 1194 | 48, /* rightshift */ |
| 1195 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1196 | 64, /* bitsize */ |
| 1197 | TRUE, /* pc_relative */ |
| 1198 | 10, /* bitpos */ |
| 1199 | complain_overflow_dont, /* complain_on_overflow */ |
| 1200 | bfd_elf_generic_reloc, /* special_function */ |
| 1201 | "R_SH_IMM_HI16_PCREL", /* name */ |
| 1202 | FALSE, /* partial_inplace */ |
| 1203 | 0, /* src_mask */ |
| 1204 | 0x3fffc00, /* dst_mask */ |
| 1205 | TRUE), /* pcrel_offset */ |
| 1206 | |
| 1207 | /* For the .uaquad pseudo. */ |
| 1208 | HOWTO (R_SH_64, /* type */ |
| 1209 | 0, /* rightshift */ |
| 1210 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1211 | 64, /* bitsize */ |
| 1212 | FALSE, /* pc_relative */ |
| 1213 | 0, /* bitpos */ |
| 1214 | complain_overflow_dont, /* complain_on_overflow */ |
| 1215 | bfd_elf_generic_reloc, /* special_function */ |
| 1216 | "R_SH_64", /* name */ |
| 1217 | FALSE, /* partial_inplace */ |
| 1218 | 0, /* src_mask */ |
| 1219 | ((bfd_vma) 0) - 1, /* dst_mask */ |
| 1220 | FALSE), /* pcrel_offset */ |
| 1221 | |
| 1222 | /* For the .uaquad pseudo, (x - $). */ |
| 1223 | HOWTO (R_SH_64_PCREL, /* type */ |
| 1224 | 48, /* rightshift */ |
| 1225 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1226 | 64, /* bitsize */ |
| 1227 | TRUE, /* pc_relative */ |
| 1228 | 10, /* bitpos */ |
| 1229 | complain_overflow_dont, /* complain_on_overflow */ |
| 1230 | bfd_elf_generic_reloc, /* special_function */ |
| 1231 | "R_SH_64_PCREL", /* name */ |
| 1232 | FALSE, /* partial_inplace */ |
| 1233 | 0, /* src_mask */ |
| 1234 | ((bfd_vma) 0) - 1, /* dst_mask */ |
| 1235 | TRUE), /* pcrel_offset */ |
| 1236 | |
| 1237 | }; |
| 1238 | |
| 1239 | /* This function is used for relocs which are only used for relaxing, |
| 1240 | which the linker should otherwise ignore. */ |
| 1241 | |
| 1242 | static bfd_reloc_status_type |
| 1243 | sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
| 1244 | asymbol *symbol ATTRIBUTE_UNUSED, |
| 1245 | void *data ATTRIBUTE_UNUSED, asection *input_section, |
| 1246 | bfd *output_bfd, |
| 1247 | char **error_message ATTRIBUTE_UNUSED) |
| 1248 | { |
| 1249 | if (output_bfd != NULL) |
| 1250 | reloc_entry->address += input_section->output_offset; |
| 1251 | return bfd_reloc_ok; |
| 1252 | } |
| 1253 | |
| 1254 | /* This function is used for normal relocs. This used to be like the COFF |
| 1255 | function, and is almost certainly incorrect for other ELF targets. |
| 1256 | |
| 1257 | See sh_elf_reloc in elf32-sh.c for the original. */ |
| 1258 | |
| 1259 | static bfd_reloc_status_type |
| 1260 | sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in, |
| 1261 | void *data, asection *input_section, bfd *output_bfd, |
| 1262 | char **error_message ATTRIBUTE_UNUSED) |
| 1263 | { |
| 1264 | unsigned long insn; |
| 1265 | bfd_vma sym_value; |
| 1266 | enum elf_sh_reloc_type r_type; |
| 1267 | bfd_vma addr = reloc_entry->address; |
| 1268 | bfd_byte *hit_data = addr + (bfd_byte *) data; |
| 1269 | |
| 1270 | r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; |
| 1271 | |
| 1272 | if (output_bfd != NULL) |
| 1273 | { |
| 1274 | /* Partial linking--do nothing. */ |
| 1275 | reloc_entry->address += input_section->output_offset; |
| 1276 | return bfd_reloc_ok; |
| 1277 | } |
| 1278 | |
| 1279 | if (symbol_in != NULL |
| 1280 | && bfd_is_und_section (symbol_in->section)) |
| 1281 | return bfd_reloc_undefined; |
| 1282 | |
| 1283 | if (bfd_is_com_section (symbol_in->section)) |
| 1284 | sym_value = 0; |
| 1285 | else |
| 1286 | sym_value = (symbol_in->value + |
| 1287 | symbol_in->section->output_section->vma + |
| 1288 | symbol_in->section->output_offset); |
| 1289 | |
| 1290 | switch (r_type) |
| 1291 | { |
| 1292 | case R_SH_DIR32: |
| 1293 | insn = bfd_get_32 (abfd, hit_data); |
| 1294 | insn += sym_value + reloc_entry->addend; |
| 1295 | bfd_put_32 (abfd, insn, hit_data); |
| 1296 | break; |
| 1297 | |
| 1298 | default: |
| 1299 | abort (); |
| 1300 | break; |
| 1301 | } |
| 1302 | |
| 1303 | return bfd_reloc_ok; |
| 1304 | } |
| 1305 | |
| 1306 | /* This structure is used to map BFD reloc codes to SH ELF relocs. */ |
| 1307 | |
| 1308 | struct elf_reloc_map |
| 1309 | { |
| 1310 | bfd_reloc_code_real_type bfd_reloc_val; |
| 1311 | unsigned char elf_reloc_val; |
| 1312 | }; |
| 1313 | |
| 1314 | /* An array mapping BFD reloc codes to SH ELF relocs. */ |
| 1315 | |
| 1316 | static const struct elf_reloc_map sh64_reloc_map[] = |
| 1317 | { |
| 1318 | { BFD_RELOC_NONE, R_SH_NONE }, |
| 1319 | { BFD_RELOC_32, R_SH_DIR32 }, |
| 1320 | { BFD_RELOC_CTOR, R_SH_DIR32 }, |
| 1321 | { BFD_RELOC_32_PCREL, R_SH_REL32 }, |
| 1322 | { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, |
| 1323 | { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, |
| 1324 | { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, |
| 1325 | { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, |
| 1326 | { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, |
| 1327 | { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 }, |
| 1328 | { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 }, |
| 1329 | { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 }, |
| 1330 | { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 }, |
| 1331 | { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 }, |
| 1332 | { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 }, |
| 1333 | { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 }, |
| 1334 | { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 }, |
| 1335 | { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 }, |
| 1336 | { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 }, |
| 1337 | { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 }, |
| 1338 | { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 }, |
| 1339 | { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 }, |
| 1340 | { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 }, |
| 1341 | { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 }, |
| 1342 | { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 }, |
| 1343 | { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 }, |
| 1344 | { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 }, |
| 1345 | { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 }, |
| 1346 | { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 }, |
| 1347 | { BFD_RELOC_SH_COPY64, R_SH_COPY64 }, |
| 1348 | { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 }, |
| 1349 | { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 }, |
| 1350 | { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 }, |
| 1351 | { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 }, |
| 1352 | { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 }, |
| 1353 | { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 }, |
| 1354 | { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 }, |
| 1355 | { BFD_RELOC_SH_PT_16, R_SH_PT_16 }, |
| 1356 | { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE }, |
| 1357 | { BFD_RELOC_SH_IMMU5, R_SH_DIR5U }, |
| 1358 | { BFD_RELOC_SH_IMMS6, R_SH_DIR6S }, |
| 1359 | { BFD_RELOC_SH_IMMU6, R_SH_DIR6U }, |
| 1360 | { BFD_RELOC_SH_IMMS10, R_SH_DIR10S }, |
| 1361 | { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW }, |
| 1362 | { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL }, |
| 1363 | { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ }, |
| 1364 | { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 }, |
| 1365 | { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 }, |
| 1366 | { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 }, |
| 1367 | { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL }, |
| 1368 | { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 }, |
| 1369 | { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL }, |
| 1370 | { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 }, |
| 1371 | { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL }, |
| 1372 | { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 }, |
| 1373 | { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL }, |
| 1374 | { BFD_RELOC_64, R_SH_64 }, |
| 1375 | { BFD_RELOC_64_PCREL, R_SH_64_PCREL }, |
| 1376 | }; |
| 1377 | |
| 1378 | /* Given a BFD reloc code, return the howto structure for the |
| 1379 | corresponding SH ELf reloc. */ |
| 1380 | |
| 1381 | static reloc_howto_type * |
| 1382 | sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 1383 | bfd_reloc_code_real_type code) |
| 1384 | { |
| 1385 | unsigned int i; |
| 1386 | |
| 1387 | for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++) |
| 1388 | { |
| 1389 | if (sh64_reloc_map[i].bfd_reloc_val == code) |
| 1390 | return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val]; |
| 1391 | } |
| 1392 | |
| 1393 | return NULL; |
| 1394 | } |
| 1395 | |
| 1396 | static reloc_howto_type * |
| 1397 | sh_elf64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 1398 | const char *r_name) |
| 1399 | { |
| 1400 | unsigned int i; |
| 1401 | |
| 1402 | for (i = 0; |
| 1403 | i < sizeof (sh_elf64_howto_table) / sizeof (sh_elf64_howto_table[0]); |
| 1404 | i++) |
| 1405 | if (sh_elf64_howto_table[i].name != NULL |
| 1406 | && strcasecmp (sh_elf64_howto_table[i].name, r_name) == 0) |
| 1407 | return &sh_elf64_howto_table[i]; |
| 1408 | |
| 1409 | return NULL; |
| 1410 | } |
| 1411 | |
| 1412 | /* Given an ELF reloc, fill in the howto field of a relent. |
| 1413 | |
| 1414 | See sh_elf_info_to_howto in elf32-sh.c for the original. */ |
| 1415 | |
| 1416 | static void |
| 1417 | sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 1418 | Elf_Internal_Rela *dst) |
| 1419 | { |
| 1420 | unsigned int r; |
| 1421 | |
| 1422 | r = ELF64_R_TYPE (dst->r_info); |
| 1423 | |
| 1424 | BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL); |
| 1425 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC); |
| 1426 | BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2); |
| 1427 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32); |
| 1428 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4); |
| 1429 | |
| 1430 | cache_ptr->howto = &sh_elf64_howto_table[r]; |
| 1431 | } |
| 1432 | |
| 1433 | /* Relocate an SH ELF section. |
| 1434 | |
| 1435 | See sh_elf_info_to_howto in elf32-sh.c for the original. */ |
| 1436 | |
| 1437 | static bfd_boolean |
| 1438 | sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, |
| 1439 | struct bfd_link_info *info, bfd *input_bfd, |
| 1440 | asection *input_section, bfd_byte *contents, |
| 1441 | Elf_Internal_Rela *relocs, |
| 1442 | Elf_Internal_Sym *local_syms, |
| 1443 | asection **local_sections) |
| 1444 | { |
| 1445 | Elf_Internal_Shdr *symtab_hdr; |
| 1446 | struct elf_link_hash_entry **sym_hashes; |
| 1447 | Elf_Internal_Rela *rel, *relend; |
| 1448 | bfd *dynobj; |
| 1449 | bfd_vma *local_got_offsets; |
| 1450 | asection *sgot; |
| 1451 | asection *sgotplt; |
| 1452 | asection *splt; |
| 1453 | asection *sreloc; |
| 1454 | bfd_vma disp, dropped; |
| 1455 | |
| 1456 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
| 1457 | sym_hashes = elf_sym_hashes (input_bfd); |
| 1458 | dynobj = elf_hash_table (info)->dynobj; |
| 1459 | local_got_offsets = elf_local_got_offsets (input_bfd); |
| 1460 | |
| 1461 | sgot = NULL; |
| 1462 | sgotplt = NULL; |
| 1463 | splt = NULL; |
| 1464 | sreloc = NULL; |
| 1465 | |
| 1466 | rel = relocs; |
| 1467 | relend = relocs + input_section->reloc_count; |
| 1468 | for (; rel < relend; rel++) |
| 1469 | { |
| 1470 | int r_type; |
| 1471 | reloc_howto_type *howto; |
| 1472 | unsigned long r_symndx; |
| 1473 | Elf_Internal_Sym *sym; |
| 1474 | asection *sec; |
| 1475 | struct elf_link_hash_entry *h; |
| 1476 | bfd_vma relocation; |
| 1477 | bfd_vma addend = (bfd_vma)0; |
| 1478 | bfd_reloc_status_type r; |
| 1479 | int seen_stt_datalabel = 0; |
| 1480 | |
| 1481 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 1482 | |
| 1483 | r_type = ELF64_R_TYPE (rel->r_info); |
| 1484 | |
| 1485 | if (r_type == (int) R_SH_NONE) |
| 1486 | continue; |
| 1487 | |
| 1488 | if (r_type < 0 |
| 1489 | || r_type > R_SH_64_PCREL |
| 1490 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC |
| 1491 | && r_type <= (int) R_SH_LAST_INVALID_RELOC) |
| 1492 | || (r_type >= (int) R_SH_DIR8WPN |
| 1493 | && r_type <= (int) R_SH_LAST_INVALID_RELOC) |
| 1494 | || (r_type >= (int) R_SH_GNU_VTINHERIT |
| 1495 | && r_type <= (int) R_SH_PSHL) |
| 1496 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2 |
| 1497 | && r_type <= R_SH_GOTPLT32) |
| 1498 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 |
| 1499 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)) |
| 1500 | { |
| 1501 | bfd_set_error (bfd_error_bad_value); |
| 1502 | return FALSE; |
| 1503 | } |
| 1504 | |
| 1505 | howto = sh_elf64_howto_table + r_type; |
| 1506 | |
| 1507 | h = NULL; |
| 1508 | sym = NULL; |
| 1509 | sec = NULL; |
| 1510 | relocation = 0; |
| 1511 | if (r_symndx < symtab_hdr->sh_info) |
| 1512 | { |
| 1513 | sym = local_syms + r_symndx; |
| 1514 | sec = local_sections[r_symndx]; |
| 1515 | relocation = ((sec->output_section->vma |
| 1516 | + sec->output_offset |
| 1517 | + sym->st_value) |
| 1518 | | ((sym->st_other & STO_SH5_ISA32) != 0)); |
| 1519 | |
| 1520 | /* A local symbol never has STO_SH5_ISA32, so we don't need |
| 1521 | datalabel processing here. Make sure this does not change |
| 1522 | without notice. */ |
| 1523 | if ((sym->st_other & STO_SH5_ISA32) != 0) |
| 1524 | ((*info->callbacks->reloc_dangerous) |
| 1525 | (info, |
| 1526 | _("Unexpected STO_SH5_ISA32 on local symbol is not handled"), |
| 1527 | input_bfd, input_section, rel->r_offset)); |
| 1528 | |
| 1529 | if (sec != NULL && elf_discarded_section (sec)) |
| 1530 | /* Handled below. */ |
| 1531 | ; |
| 1532 | else if (info->relocatable) |
| 1533 | { |
| 1534 | /* This is a relocatable link. We don't have to change |
| 1535 | anything, unless the reloc is against a section symbol, |
| 1536 | in which case we have to adjust according to where the |
| 1537 | section symbol winds up in the output section. */ |
| 1538 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
| 1539 | goto final_link_relocate; |
| 1540 | |
| 1541 | continue; |
| 1542 | } |
| 1543 | else if (! howto->partial_inplace) |
| 1544 | { |
| 1545 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 1546 | relocation |= ((sym->st_other & STO_SH5_ISA32) != 0); |
| 1547 | } |
| 1548 | else if ((sec->flags & SEC_MERGE) |
| 1549 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
| 1550 | { |
| 1551 | asection *msec; |
| 1552 | |
| 1553 | if (howto->rightshift || howto->src_mask != 0xffffffff) |
| 1554 | { |
| 1555 | (*_bfd_error_handler) |
| 1556 | (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), |
| 1557 | input_bfd, input_section, |
| 1558 | (long) rel->r_offset, howto->name); |
| 1559 | return FALSE; |
| 1560 | } |
| 1561 | |
| 1562 | addend = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 1563 | msec = sec; |
| 1564 | addend = |
| 1565 | _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) |
| 1566 | - relocation; |
| 1567 | addend += msec->output_section->vma + msec->output_offset; |
| 1568 | bfd_put_32 (input_bfd, addend, contents + rel->r_offset); |
| 1569 | addend = 0; |
| 1570 | } |
| 1571 | } |
| 1572 | else |
| 1573 | { |
| 1574 | /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */ |
| 1575 | |
| 1576 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 1577 | while (h->root.type == bfd_link_hash_indirect |
| 1578 | || h->root.type == bfd_link_hash_warning) |
| 1579 | { |
| 1580 | /* If the reference passes a symbol marked with |
| 1581 | STT_DATALABEL, then any STO_SH5_ISA32 on the final value |
| 1582 | doesn't count. */ |
| 1583 | seen_stt_datalabel |= h->type == STT_DATALABEL; |
| 1584 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 1585 | } |
| 1586 | |
| 1587 | if (h->root.type == bfd_link_hash_defined |
| 1588 | || h->root.type == bfd_link_hash_defweak) |
| 1589 | { |
| 1590 | sec = h->root.u.def.section; |
| 1591 | /* In these cases, we don't need the relocation value. |
| 1592 | We check specially because in some obscure cases |
| 1593 | sec->output_section will be NULL. */ |
| 1594 | if (r_type == R_SH_GOTPC_LOW16 |
| 1595 | || r_type == R_SH_GOTPC_MEDLOW16 |
| 1596 | || r_type == R_SH_GOTPC_MEDHI16 |
| 1597 | || r_type == R_SH_GOTPC_HI16 |
| 1598 | || ((r_type == R_SH_PLT_LOW16 |
| 1599 | || r_type == R_SH_PLT_MEDLOW16 |
| 1600 | || r_type == R_SH_PLT_MEDHI16 |
| 1601 | || r_type == R_SH_PLT_HI16) |
| 1602 | && h->plt.offset != (bfd_vma) -1) |
| 1603 | || ((r_type == R_SH_GOT_LOW16 |
| 1604 | || r_type == R_SH_GOT_MEDLOW16 |
| 1605 | || r_type == R_SH_GOT_MEDHI16 |
| 1606 | || r_type == R_SH_GOT_HI16) |
| 1607 | && elf_hash_table (info)->dynamic_sections_created |
| 1608 | && (! info->shared |
| 1609 | || (! info->symbolic && h->dynindx != -1) |
| 1610 | || !h->def_regular)) |
| 1611 | /* The cases above are those in which relocation is |
| 1612 | overwritten in the switch block below. The cases |
| 1613 | below are those in which we must defer relocation |
| 1614 | to run-time, because we can't resolve absolute |
| 1615 | addresses when creating a shared library. */ |
| 1616 | || (info->shared |
| 1617 | && ((! info->symbolic && h->dynindx != -1) |
| 1618 | || !h->def_regular) |
| 1619 | && ((r_type == R_SH_64 |
| 1620 | && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL |
| 1621 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)) |
| 1622 | || r_type == R_SH_64_PCREL) |
| 1623 | && ((input_section->flags & SEC_ALLOC) != 0 |
| 1624 | /* DWARF will emit R_SH_DIR32 relocations in its |
| 1625 | sections against symbols defined externally |
| 1626 | in shared libraries. We can't do anything |
| 1627 | with them here. */ |
| 1628 | || (input_section->flags & SEC_DEBUGGING) != 0)) |
| 1629 | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
| 1630 | sections because such sections are not SEC_ALLOC and |
| 1631 | thus ld.so will not process them. */ |
| 1632 | || (sec->output_section == NULL |
| 1633 | && ((input_section->flags & SEC_DEBUGGING) != 0 |
| 1634 | && h->def_dynamic))) |
| 1635 | ; |
| 1636 | else if (sec->output_section != NULL) |
| 1637 | relocation = ((h->root.u.def.value |
| 1638 | + sec->output_section->vma |
| 1639 | + sec->output_offset) |
| 1640 | /* A STO_SH5_ISA32 causes a "bitor 1" to the |
| 1641 | symbol value, unless we've seen |
| 1642 | STT_DATALABEL on the way to it. */ |
| 1643 | | ((h->other & STO_SH5_ISA32) != 0 |
| 1644 | && ! seen_stt_datalabel)); |
| 1645 | else if (!info->relocatable) |
| 1646 | { |
| 1647 | (*_bfd_error_handler) |
| 1648 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
| 1649 | input_bfd, |
| 1650 | input_section, |
| 1651 | (long) rel->r_offset, |
| 1652 | howto->name, |
| 1653 | h->root.root.string); |
| 1654 | } |
| 1655 | } |
| 1656 | else if (h->root.type == bfd_link_hash_undefweak) |
| 1657 | ; |
| 1658 | else if (info->unresolved_syms_in_objects == RM_IGNORE |
| 1659 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
| 1660 | ; |
| 1661 | else if (!info->relocatable) |
| 1662 | { |
| 1663 | if (! ((*info->callbacks->undefined_symbol) |
| 1664 | (info, h->root.root.string, input_bfd, |
| 1665 | input_section, rel->r_offset, |
| 1666 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR |
| 1667 | || ELF_ST_VISIBILITY (h->other))))) |
| 1668 | return FALSE; |
| 1669 | } |
| 1670 | } |
| 1671 | |
| 1672 | if (sec != NULL && elf_discarded_section (sec)) |
| 1673 | { |
| 1674 | /* For relocs against symbols from removed linkonce sections, |
| 1675 | or sections discarded by a linker script, we just want the |
| 1676 | section contents zeroed. Avoid any special processing. */ |
| 1677 | _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); |
| 1678 | rel->r_info = 0; |
| 1679 | rel->r_addend = 0; |
| 1680 | continue; |
| 1681 | } |
| 1682 | |
| 1683 | if (info->relocatable) |
| 1684 | continue; |
| 1685 | |
| 1686 | disp = (relocation |
| 1687 | - input_section->output_section->vma |
| 1688 | - input_section->output_offset |
| 1689 | - rel->r_offset); |
| 1690 | dropped = 0; |
| 1691 | switch ((int)r_type) |
| 1692 | { |
| 1693 | case R_SH_PT_16: dropped = disp & 2; break; |
| 1694 | case R_SH_DIR10SW: dropped = disp & 1; break; |
| 1695 | case R_SH_DIR10SL: dropped = disp & 3; break; |
| 1696 | case R_SH_DIR10SQ: dropped = disp & 7; break; |
| 1697 | } |
| 1698 | if (dropped != 0) |
| 1699 | { |
| 1700 | (*_bfd_error_handler) |
| 1701 | (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"), |
| 1702 | bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation); |
| 1703 | bfd_set_error (bfd_error_bad_value); |
| 1704 | return FALSE; |
| 1705 | } |
| 1706 | switch ((int)r_type) |
| 1707 | { |
| 1708 | case R_SH_64: |
| 1709 | case R_SH_64_PCREL: |
| 1710 | if (info->shared |
| 1711 | && (input_section->flags & SEC_ALLOC) != 0 |
| 1712 | && (r_type != R_SH_64_PCREL |
| 1713 | || (h != NULL |
| 1714 | && h->dynindx != -1 |
| 1715 | && (! info->symbolic |
| 1716 | || !h->def_regular)))) |
| 1717 | { |
| 1718 | Elf_Internal_Rela outrel; |
| 1719 | bfd_byte *loc; |
| 1720 | bfd_boolean skip, relocate; |
| 1721 | |
| 1722 | /* When generating a shared object, these relocations |
| 1723 | are copied into the output file to be resolved at run |
| 1724 | time. */ |
| 1725 | |
| 1726 | if (sreloc == NULL) |
| 1727 | { |
| 1728 | const char *name; |
| 1729 | |
| 1730 | name = (bfd_elf_string_from_elf_section |
| 1731 | (input_bfd, |
| 1732 | elf_elfheader (input_bfd)->e_shstrndx, |
| 1733 | elf_section_data (input_section)->rel_hdr.sh_name)); |
| 1734 | if (name == NULL) |
| 1735 | return FALSE; |
| 1736 | |
| 1737 | BFD_ASSERT (CONST_STRNEQ (name, ".rela") |
| 1738 | && strcmp (bfd_get_section_name (input_bfd, |
| 1739 | input_section), |
| 1740 | name + 5) == 0); |
| 1741 | |
| 1742 | sreloc = bfd_get_section_by_name (dynobj, name); |
| 1743 | BFD_ASSERT (sreloc != NULL); |
| 1744 | } |
| 1745 | |
| 1746 | skip = FALSE; |
| 1747 | relocate = FALSE; |
| 1748 | |
| 1749 | outrel.r_offset |
| 1750 | = _bfd_elf_section_offset (output_bfd, info, |
| 1751 | input_section, rel->r_offset); |
| 1752 | |
| 1753 | if (outrel.r_offset == (bfd_vma) -1) |
| 1754 | skip = TRUE; |
| 1755 | else if (outrel.r_offset == (bfd_vma) -2) |
| 1756 | skip = TRUE, relocate = TRUE; |
| 1757 | |
| 1758 | outrel.r_offset += (input_section->output_section->vma |
| 1759 | + input_section->output_offset); |
| 1760 | |
| 1761 | if (skip) |
| 1762 | memset (&outrel, 0, sizeof outrel); |
| 1763 | else if (r_type == R_SH_64_PCREL) |
| 1764 | { |
| 1765 | BFD_ASSERT (h != NULL && h->dynindx != -1); |
| 1766 | outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL); |
| 1767 | outrel.r_addend = rel->r_addend; |
| 1768 | } |
| 1769 | else |
| 1770 | { |
| 1771 | /* h->dynindx may be -1 if this symbol was marked to |
| 1772 | become local. */ |
| 1773 | if (h == NULL |
| 1774 | || ((info->symbolic || h->dynindx == -1) |
| 1775 | && h->def_regular)) |
| 1776 | { |
| 1777 | relocate = TRUE; |
| 1778 | outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); |
| 1779 | outrel.r_addend = relocation + rel->r_addend; |
| 1780 | } |
| 1781 | else |
| 1782 | { |
| 1783 | BFD_ASSERT (h->dynindx != -1); |
| 1784 | outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64); |
| 1785 | outrel.r_addend = relocation + rel->r_addend; |
| 1786 | } |
| 1787 | } |
| 1788 | |
| 1789 | loc = sreloc->contents; |
| 1790 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); |
| 1791 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 1792 | |
| 1793 | /* If this reloc is against an external symbol, we do |
| 1794 | not want to fiddle with the addend. Otherwise, we |
| 1795 | need to include the symbol value so that it becomes |
| 1796 | an addend for the dynamic reloc. */ |
| 1797 | if (! relocate) |
| 1798 | continue; |
| 1799 | } |
| 1800 | else if (r_type == R_SH_64) |
| 1801 | addend = rel->r_addend; |
| 1802 | goto final_link_relocate; |
| 1803 | |
| 1804 | case R_SH_GOTPLT_LOW16: |
| 1805 | case R_SH_GOTPLT_MEDLOW16: |
| 1806 | case R_SH_GOTPLT_MEDHI16: |
| 1807 | case R_SH_GOTPLT_HI16: |
| 1808 | case R_SH_GOTPLT10BY4: |
| 1809 | case R_SH_GOTPLT10BY8: |
| 1810 | /* Relocation is to the entry for this symbol in the |
| 1811 | procedure linkage table. */ |
| 1812 | |
| 1813 | if (h == NULL |
| 1814 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL |
| 1815 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN |
| 1816 | || ! info->shared |
| 1817 | || info->symbolic |
| 1818 | || h->dynindx == -1 |
| 1819 | || h->plt.offset == (bfd_vma) -1 |
| 1820 | || h->got.offset != (bfd_vma) -1) |
| 1821 | goto force_got; |
| 1822 | |
| 1823 | /* Relocation is to the entry for this symbol in the global |
| 1824 | offset table extension for the procedure linkage table. */ |
| 1825 | if (sgotplt == NULL) |
| 1826 | { |
| 1827 | sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); |
| 1828 | BFD_ASSERT (sgotplt != NULL); |
| 1829 | } |
| 1830 | |
| 1831 | relocation = (sgotplt->output_offset |
| 1832 | + ((h->plt.offset / elf_sh64_sizeof_plt (info) |
| 1833 | - 1 + 3) * 8)); |
| 1834 | |
| 1835 | relocation -= GOT_BIAS; |
| 1836 | |
| 1837 | goto final_link_relocate; |
| 1838 | |
| 1839 | force_got: |
| 1840 | case R_SH_GOT_LOW16: |
| 1841 | case R_SH_GOT_MEDLOW16: |
| 1842 | case R_SH_GOT_MEDHI16: |
| 1843 | case R_SH_GOT_HI16: |
| 1844 | case R_SH_GOT10BY4: |
| 1845 | case R_SH_GOT10BY8: |
| 1846 | /* Relocation is to the entry for this symbol in the global |
| 1847 | offset table. */ |
| 1848 | if (sgot == NULL) |
| 1849 | { |
| 1850 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
| 1851 | BFD_ASSERT (sgot != NULL); |
| 1852 | } |
| 1853 | |
| 1854 | if (h != NULL) |
| 1855 | { |
| 1856 | bfd_vma off; |
| 1857 | |
| 1858 | off = h->got.offset; |
| 1859 | if (seen_stt_datalabel) |
| 1860 | { |
| 1861 | struct elf_sh64_link_hash_entry *hsh; |
| 1862 | |
| 1863 | hsh = (struct elf_sh64_link_hash_entry *)h; |
| 1864 | off = hsh->datalabel_got_offset; |
| 1865 | } |
| 1866 | BFD_ASSERT (off != (bfd_vma) -1); |
| 1867 | |
| 1868 | if (! elf_hash_table (info)->dynamic_sections_created |
| 1869 | || (info->shared |
| 1870 | && (info->symbolic || h->dynindx == -1 |
| 1871 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL |
| 1872 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) |
| 1873 | && h->def_regular)) |
| 1874 | { |
| 1875 | /* This is actually a static link, or it is a |
| 1876 | -Bsymbolic link and the symbol is defined |
| 1877 | locally, or the symbol was forced to be local |
| 1878 | because of a version file. We must initialize |
| 1879 | this entry in the global offset table. Since the |
| 1880 | offset must always be a multiple of 4, we use the |
| 1881 | least significant bit to record whether we have |
| 1882 | initialized it already. |
| 1883 | |
| 1884 | When doing a dynamic link, we create a .rela.got |
| 1885 | relocation entry to initialize the value. This |
| 1886 | is done in the finish_dynamic_symbol routine. */ |
| 1887 | if ((off & 1) != 0) |
| 1888 | off &= ~1; |
| 1889 | else |
| 1890 | { |
| 1891 | bfd_put_64 (output_bfd, relocation, |
| 1892 | sgot->contents + off); |
| 1893 | if (seen_stt_datalabel) |
| 1894 | { |
| 1895 | struct elf_sh64_link_hash_entry *hsh; |
| 1896 | |
| 1897 | hsh = (struct elf_sh64_link_hash_entry *)h; |
| 1898 | hsh->datalabel_got_offset |= 1; |
| 1899 | } |
| 1900 | else |
| 1901 | h->got.offset |= 1; |
| 1902 | } |
| 1903 | } |
| 1904 | |
| 1905 | relocation = sgot->output_offset + off; |
| 1906 | } |
| 1907 | else |
| 1908 | { |
| 1909 | bfd_vma off; |
| 1910 | |
| 1911 | if (rel->r_addend) |
| 1912 | { |
| 1913 | BFD_ASSERT (local_got_offsets != NULL |
| 1914 | && (local_got_offsets[symtab_hdr->sh_info |
| 1915 | + r_symndx] |
| 1916 | != (bfd_vma) -1)); |
| 1917 | |
| 1918 | off = local_got_offsets[symtab_hdr->sh_info |
| 1919 | + r_symndx]; |
| 1920 | } |
| 1921 | else |
| 1922 | { |
| 1923 | BFD_ASSERT (local_got_offsets != NULL |
| 1924 | && local_got_offsets[r_symndx] != (bfd_vma) -1); |
| 1925 | |
| 1926 | off = local_got_offsets[r_symndx]; |
| 1927 | } |
| 1928 | |
| 1929 | /* The offset must always be a multiple of 8. We use |
| 1930 | the least significant bit to record whether we have |
| 1931 | already generated the necessary reloc. */ |
| 1932 | if ((off & 1) != 0) |
| 1933 | off &= ~1; |
| 1934 | else |
| 1935 | { |
| 1936 | bfd_put_64 (output_bfd, relocation, sgot->contents + off); |
| 1937 | |
| 1938 | if (info->shared) |
| 1939 | { |
| 1940 | asection *s; |
| 1941 | Elf_Internal_Rela outrel; |
| 1942 | bfd_byte *loc; |
| 1943 | |
| 1944 | s = bfd_get_section_by_name (dynobj, ".rela.got"); |
| 1945 | BFD_ASSERT (s != NULL); |
| 1946 | |
| 1947 | outrel.r_offset = (sgot->output_section->vma |
| 1948 | + sgot->output_offset |
| 1949 | + off); |
| 1950 | outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); |
| 1951 | outrel.r_addend = relocation; |
| 1952 | loc = s->contents; |
| 1953 | loc += s->reloc_count++ * sizeof (Elf64_External_Rela); |
| 1954 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 1955 | } |
| 1956 | |
| 1957 | if (rel->r_addend) |
| 1958 | local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1; |
| 1959 | else |
| 1960 | local_got_offsets[r_symndx] |= 1; |
| 1961 | } |
| 1962 | |
| 1963 | relocation = sgot->output_offset + off; |
| 1964 | } |
| 1965 | |
| 1966 | relocation -= GOT_BIAS; |
| 1967 | |
| 1968 | goto final_link_relocate; |
| 1969 | |
| 1970 | case R_SH_GOTOFF_LOW16: |
| 1971 | case R_SH_GOTOFF_MEDLOW16: |
| 1972 | case R_SH_GOTOFF_MEDHI16: |
| 1973 | case R_SH_GOTOFF_HI16: |
| 1974 | /* Relocation is relative to the start of the global offset |
| 1975 | table. */ |
| 1976 | |
| 1977 | if (sgot == NULL) |
| 1978 | { |
| 1979 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
| 1980 | BFD_ASSERT (sgot != NULL); |
| 1981 | } |
| 1982 | |
| 1983 | /* Note that sgot->output_offset is not involved in this |
| 1984 | calculation. We always want the start of .got. If we |
| 1985 | defined _GLOBAL_OFFSET_TABLE in a different way, as is |
| 1986 | permitted by the ABI, we might have to change this |
| 1987 | calculation. */ |
| 1988 | relocation -= sgot->output_section->vma; |
| 1989 | |
| 1990 | relocation -= GOT_BIAS; |
| 1991 | |
| 1992 | addend = rel->r_addend; |
| 1993 | |
| 1994 | goto final_link_relocate; |
| 1995 | |
| 1996 | case R_SH_GOTPC_LOW16: |
| 1997 | case R_SH_GOTPC_MEDLOW16: |
| 1998 | case R_SH_GOTPC_MEDHI16: |
| 1999 | case R_SH_GOTPC_HI16: |
| 2000 | /* Use global offset table as symbol value. */ |
| 2001 | |
| 2002 | if (sgot == NULL) |
| 2003 | { |
| 2004 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
| 2005 | BFD_ASSERT (sgot != NULL); |
| 2006 | } |
| 2007 | |
| 2008 | relocation = sgot->output_section->vma; |
| 2009 | |
| 2010 | relocation += GOT_BIAS; |
| 2011 | |
| 2012 | addend = rel->r_addend; |
| 2013 | |
| 2014 | goto final_link_relocate; |
| 2015 | |
| 2016 | case R_SH_PLT_LOW16: |
| 2017 | case R_SH_PLT_MEDLOW16: |
| 2018 | case R_SH_PLT_MEDHI16: |
| 2019 | case R_SH_PLT_HI16: |
| 2020 | /* Relocation is to the entry for this symbol in the |
| 2021 | procedure linkage table. */ |
| 2022 | |
| 2023 | /* Resolve a PLT reloc against a local symbol directly, |
| 2024 | without using the procedure linkage table. */ |
| 2025 | if (h == NULL) |
| 2026 | goto final_link_relocate; |
| 2027 | |
| 2028 | if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL |
| 2029 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) |
| 2030 | goto final_link_relocate; |
| 2031 | |
| 2032 | if (h->plt.offset == (bfd_vma) -1) |
| 2033 | { |
| 2034 | /* We didn't make a PLT entry for this symbol. This |
| 2035 | happens when statically linking PIC code, or when |
| 2036 | using -Bsymbolic. */ |
| 2037 | goto final_link_relocate; |
| 2038 | } |
| 2039 | |
| 2040 | if (splt == NULL) |
| 2041 | { |
| 2042 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
| 2043 | BFD_ASSERT (splt != NULL); |
| 2044 | } |
| 2045 | |
| 2046 | relocation = (splt->output_section->vma |
| 2047 | + splt->output_offset |
| 2048 | + h->plt.offset); |
| 2049 | relocation++; |
| 2050 | |
| 2051 | addend = rel->r_addend; |
| 2052 | |
| 2053 | goto final_link_relocate; |
| 2054 | |
| 2055 | case R_SH_DIR32: |
| 2056 | case R_SH_SHMEDIA_CODE: |
| 2057 | case R_SH_PT_16: |
| 2058 | case R_SH_DIR5U: |
| 2059 | case R_SH_DIR6S: |
| 2060 | case R_SH_DIR6U: |
| 2061 | case R_SH_DIR10S: |
| 2062 | case R_SH_DIR10SW: |
| 2063 | case R_SH_DIR10SL: |
| 2064 | case R_SH_DIR10SQ: |
| 2065 | case R_SH_IMMS16: |
| 2066 | case R_SH_IMMU16: |
| 2067 | case R_SH_IMM_LOW16: |
| 2068 | case R_SH_IMM_LOW16_PCREL: |
| 2069 | case R_SH_IMM_MEDLOW16: |
| 2070 | case R_SH_IMM_MEDLOW16_PCREL: |
| 2071 | case R_SH_IMM_MEDHI16: |
| 2072 | case R_SH_IMM_MEDHI16_PCREL: |
| 2073 | case R_SH_IMM_HI16: |
| 2074 | case R_SH_IMM_HI16_PCREL: |
| 2075 | addend = rel->r_addend; |
| 2076 | /* Fall through. */ |
| 2077 | case R_SH_REL32: |
| 2078 | final_link_relocate: |
| 2079 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| 2080 | contents, rel->r_offset, |
| 2081 | relocation, addend); |
| 2082 | break; |
| 2083 | |
| 2084 | default: |
| 2085 | bfd_set_error (bfd_error_bad_value); |
| 2086 | return FALSE; |
| 2087 | |
| 2088 | } |
| 2089 | |
| 2090 | if (r != bfd_reloc_ok) |
| 2091 | { |
| 2092 | switch (r) |
| 2093 | { |
| 2094 | default: |
| 2095 | case bfd_reloc_outofrange: |
| 2096 | abort (); |
| 2097 | case bfd_reloc_overflow: |
| 2098 | { |
| 2099 | const char *name; |
| 2100 | |
| 2101 | if (h != NULL) |
| 2102 | name = NULL; |
| 2103 | else |
| 2104 | { |
| 2105 | name = (bfd_elf_string_from_elf_section |
| 2106 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); |
| 2107 | if (name == NULL) |
| 2108 | return FALSE; |
| 2109 | if (*name == '\0') |
| 2110 | name = bfd_section_name (input_bfd, sec); |
| 2111 | } |
| 2112 | if (! ((*info->callbacks->reloc_overflow) |
| 2113 | (info, (h ? &h->root : NULL), name, howto->name, |
| 2114 | (bfd_vma) 0, input_bfd, input_section, |
| 2115 | rel->r_offset))) |
| 2116 | return FALSE; |
| 2117 | } |
| 2118 | break; |
| 2119 | } |
| 2120 | } |
| 2121 | } |
| 2122 | |
| 2123 | return TRUE; |
| 2124 | } |
| 2125 | |
| 2126 | /* This is a version of bfd_generic_get_relocated_section_contents |
| 2127 | that uses sh_elf64_relocate_section. |
| 2128 | |
| 2129 | See sh_elf_relocate_section in elf32-sh.c for the original. */ |
| 2130 | |
| 2131 | static bfd_byte * |
| 2132 | sh_elf64_get_relocated_section_contents (bfd *output_bfd, |
| 2133 | struct bfd_link_info *link_info, |
| 2134 | struct bfd_link_order *link_order, |
| 2135 | bfd_byte *data, |
| 2136 | bfd_boolean relocatable, |
| 2137 | asymbol **symbols) |
| 2138 | { |
| 2139 | Elf_Internal_Shdr *symtab_hdr; |
| 2140 | asection *input_section = link_order->u.indirect.section; |
| 2141 | bfd *input_bfd = input_section->owner; |
| 2142 | asection **sections = NULL; |
| 2143 | Elf_Internal_Rela *internal_relocs = NULL; |
| 2144 | Elf_Internal_Sym *isymbuf = NULL; |
| 2145 | |
| 2146 | /* We only need to handle the case of relaxing, or of having a |
| 2147 | particular set of section contents, specially. */ |
| 2148 | if (relocatable |
| 2149 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
| 2150 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, |
| 2151 | link_order, data, |
| 2152 | relocatable, |
| 2153 | symbols); |
| 2154 | |
| 2155 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
| 2156 | |
| 2157 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, |
| 2158 | input_section->size); |
| 2159 | |
| 2160 | if ((input_section->flags & SEC_RELOC) != 0 |
| 2161 | && input_section->reloc_count > 0) |
| 2162 | { |
| 2163 | Elf_Internal_Sym *isymp; |
| 2164 | Elf_Internal_Sym *isymend; |
| 2165 | asection **secpp; |
| 2166 | |
| 2167 | /* Read this BFD's local symbols. */ |
| 2168 | if (symtab_hdr->sh_info != 0) |
| 2169 | { |
| 2170 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
| 2171 | if (isymbuf == NULL) |
| 2172 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
| 2173 | symtab_hdr->sh_info, 0, |
| 2174 | NULL, NULL, NULL); |
| 2175 | if (isymbuf == NULL) |
| 2176 | goto error_return; |
| 2177 | } |
| 2178 | |
| 2179 | internal_relocs = (_bfd_elf_link_read_relocs |
| 2180 | (input_bfd, input_section, NULL, |
| 2181 | (Elf_Internal_Rela *) NULL, FALSE)); |
| 2182 | if (internal_relocs == NULL) |
| 2183 | goto error_return; |
| 2184 | |
| 2185 | sections = (asection **) bfd_malloc (symtab_hdr->sh_info |
| 2186 | * sizeof (asection *)); |
| 2187 | if (sections == NULL && symtab_hdr->sh_info > 0) |
| 2188 | goto error_return; |
| 2189 | |
| 2190 | secpp = sections; |
| 2191 | isymend = isymbuf + symtab_hdr->sh_info; |
| 2192 | for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp) |
| 2193 | { |
| 2194 | asection *isec; |
| 2195 | |
| 2196 | if (isymp->st_shndx == SHN_UNDEF) |
| 2197 | isec = bfd_und_section_ptr; |
| 2198 | else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE) |
| 2199 | isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); |
| 2200 | else if (isymp->st_shndx == SHN_ABS) |
| 2201 | isec = bfd_abs_section_ptr; |
| 2202 | else if (isymp->st_shndx == SHN_COMMON) |
| 2203 | isec = bfd_com_section_ptr; |
| 2204 | else |
| 2205 | { |
| 2206 | /* Who knows? */ |
| 2207 | isec = NULL; |
| 2208 | } |
| 2209 | |
| 2210 | *secpp = isec; |
| 2211 | } |
| 2212 | |
| 2213 | if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd, |
| 2214 | input_section, data, internal_relocs, |
| 2215 | isymbuf, sections)) |
| 2216 | goto error_return; |
| 2217 | |
| 2218 | if (sections != NULL) |
| 2219 | free (sections); |
| 2220 | if (internal_relocs != elf_section_data (input_section)->relocs) |
| 2221 | free (internal_relocs); |
| 2222 | if (isymbuf != NULL |
| 2223 | && (unsigned char *) isymbuf != symtab_hdr->contents) |
| 2224 | free (isymbuf); |
| 2225 | } |
| 2226 | |
| 2227 | return data; |
| 2228 | |
| 2229 | error_return: |
| 2230 | if (sections != NULL) |
| 2231 | free (sections); |
| 2232 | if (internal_relocs != NULL |
| 2233 | && internal_relocs != elf_section_data (input_section)->relocs) |
| 2234 | free (internal_relocs); |
| 2235 | if (isymbuf != NULL |
| 2236 | && (unsigned char *) isymbuf != symtab_hdr->contents) |
| 2237 | free (isymbuf); |
| 2238 | return NULL; |
| 2239 | } |
| 2240 | |
| 2241 | /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */ |
| 2242 | |
| 2243 | static bfd_boolean |
| 2244 | sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
| 2245 | Elf_Internal_Shdr *elf_section_hdr, |
| 2246 | asection *asect) |
| 2247 | { |
| 2248 | /* Code sections can only contain SH64 code, so mark them as such. */ |
| 2249 | if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE) |
| 2250 | elf_section_hdr->sh_flags |= SHF_SH5_ISA32; |
| 2251 | |
| 2252 | return TRUE; |
| 2253 | } |
| 2254 | |
| 2255 | static bfd_boolean |
| 2256 | sh_elf64_set_mach_from_flags (bfd *abfd) |
| 2257 | { |
| 2258 | flagword flags = elf_elfheader (abfd)->e_flags; |
| 2259 | |
| 2260 | switch (flags & EF_SH_MACH_MASK) |
| 2261 | { |
| 2262 | case EF_SH5: |
| 2263 | /* Just one, but keep the switch construct to make additions easy. */ |
| 2264 | bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5); |
| 2265 | break; |
| 2266 | |
| 2267 | default: |
| 2268 | bfd_set_error (bfd_error_wrong_format); |
| 2269 | return FALSE; |
| 2270 | } |
| 2271 | return TRUE; |
| 2272 | } |
| 2273 | |
| 2274 | /* Function to keep SH64 specific file flags. |
| 2275 | |
| 2276 | See sh64_elf_set_private_flags in elf32-sh64.c for the original. */ |
| 2277 | |
| 2278 | static bfd_boolean |
| 2279 | sh_elf64_set_private_flags (bfd *abfd, flagword flags) |
| 2280 | { |
| 2281 | BFD_ASSERT (! elf_flags_init (abfd) |
| 2282 | || elf_elfheader (abfd)->e_flags == flags); |
| 2283 | |
| 2284 | elf_elfheader (abfd)->e_flags = flags; |
| 2285 | elf_flags_init (abfd) = TRUE; |
| 2286 | return sh_elf64_set_mach_from_flags (abfd); |
| 2287 | } |
| 2288 | |
| 2289 | /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with |
| 2290 | code, to keep attributes the same as for SHmedia in 32-bit ELF. */ |
| 2291 | |
| 2292 | static bfd_boolean |
| 2293 | sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd) |
| 2294 | { |
| 2295 | Elf_Internal_Shdr **o_shdrp; |
| 2296 | asection *isec; |
| 2297 | asection *osec; |
| 2298 | |
| 2299 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| 2300 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| 2301 | return TRUE; |
| 2302 | |
| 2303 | o_shdrp = elf_elfsections (obfd); |
| 2304 | for (osec = obfd->sections; osec; osec = osec->next) |
| 2305 | { |
| 2306 | int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx; |
| 2307 | for (isec = ibfd->sections; isec; isec = isec->next) |
| 2308 | { |
| 2309 | if (strcmp (osec->name, isec->name) == 0) |
| 2310 | { |
| 2311 | /* Note that we're not disallowing mixing data and code. */ |
| 2312 | if ((elf_section_data (isec)->this_hdr.sh_flags |
| 2313 | & SHF_SH5_ISA32) != 0) |
| 2314 | o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32; |
| 2315 | break; |
| 2316 | } |
| 2317 | } |
| 2318 | } |
| 2319 | |
| 2320 | /* Copy object attributes. */ |
| 2321 | _bfd_elf_copy_obj_attributes (ibfd, obfd); |
| 2322 | |
| 2323 | return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); |
| 2324 | } |
| 2325 | |
| 2326 | static bfd_boolean |
| 2327 | sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd) |
| 2328 | { |
| 2329 | return sh_elf64_copy_private_data_internal (ibfd, obfd); |
| 2330 | } |
| 2331 | |
| 2332 | static bfd_boolean |
| 2333 | sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd) |
| 2334 | { |
| 2335 | flagword old_flags, new_flags; |
| 2336 | |
| 2337 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
| 2338 | return FALSE; |
| 2339 | |
| 2340 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| 2341 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| 2342 | return TRUE; |
| 2343 | |
| 2344 | if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd)) |
| 2345 | { |
| 2346 | const char *msg; |
| 2347 | |
| 2348 | if (bfd_get_arch_size (ibfd) == 32 |
| 2349 | && bfd_get_arch_size (obfd) == 64) |
| 2350 | msg = _("%s: compiled as 32-bit object and %s is 64-bit"); |
| 2351 | else if (bfd_get_arch_size (ibfd) == 64 |
| 2352 | && bfd_get_arch_size (obfd) == 32) |
| 2353 | msg = _("%s: compiled as 64-bit object and %s is 32-bit"); |
| 2354 | else |
| 2355 | msg = _("%s: object size does not match that of target %s"); |
| 2356 | |
| 2357 | (*_bfd_error_handler) (msg, bfd_get_filename (ibfd), |
| 2358 | bfd_get_filename (obfd)); |
| 2359 | bfd_set_error (bfd_error_wrong_format); |
| 2360 | return FALSE; |
| 2361 | } |
| 2362 | |
| 2363 | old_flags = elf_elfheader (obfd)->e_flags; |
| 2364 | new_flags = elf_elfheader (ibfd)->e_flags; |
| 2365 | if (! elf_flags_init (obfd)) |
| 2366 | { |
| 2367 | /* This happens when ld starts out with a 'blank' output file. */ |
| 2368 | elf_flags_init (obfd) = TRUE; |
| 2369 | elf_elfheader (obfd)->e_flags = old_flags = new_flags; |
| 2370 | } |
| 2371 | /* We don't allow linking in anything else than SH64 code, and since |
| 2372 | this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code |
| 2373 | here as things change. */ |
| 2374 | else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5) |
| 2375 | { |
| 2376 | (*_bfd_error_handler) |
| 2377 | ("%s: does not use the SH64 64-bit ABI as previous modules do", |
| 2378 | bfd_get_filename (ibfd)); |
| 2379 | bfd_set_error (bfd_error_bad_value); |
| 2380 | return FALSE; |
| 2381 | } |
| 2382 | |
| 2383 | sh_elf64_copy_private_data_internal (ibfd, obfd); |
| 2384 | |
| 2385 | /* I can't think of anything sane other than old_flags being EF_SH5 and |
| 2386 | that we need to preserve that. */ |
| 2387 | elf_elfheader (obfd)->e_flags = old_flags; |
| 2388 | |
| 2389 | return sh_elf64_set_mach_from_flags (obfd); |
| 2390 | } |
| 2391 | |
| 2392 | /* Return the section that should be marked against GC for a given |
| 2393 | relocation. */ |
| 2394 | |
| 2395 | static asection * |
| 2396 | sh_elf64_gc_mark_hook (asection *sec, |
| 2397 | struct bfd_link_info *info, |
| 2398 | Elf_Internal_Rela *rel, |
| 2399 | struct elf_link_hash_entry *h, |
| 2400 | Elf_Internal_Sym *sym) |
| 2401 | { |
| 2402 | if (h != NULL) |
| 2403 | switch (ELF64_R_TYPE (rel->r_info)) |
| 2404 | { |
| 2405 | case R_SH_GNU_VTINHERIT: |
| 2406 | case R_SH_GNU_VTENTRY: |
| 2407 | return NULL; |
| 2408 | } |
| 2409 | |
| 2410 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 2411 | } |
| 2412 | |
| 2413 | /* Look through the relocs for a section during the first phase. |
| 2414 | Since we don't do .gots or .plts, we just need to consider the |
| 2415 | virtual table relocs for gc. */ |
| 2416 | |
| 2417 | static bfd_boolean |
| 2418 | sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 2419 | asection *sec, const Elf_Internal_Rela *relocs) |
| 2420 | { |
| 2421 | Elf_Internal_Shdr *symtab_hdr; |
| 2422 | struct elf_link_hash_entry **sym_hashes; |
| 2423 | const Elf_Internal_Rela *rel; |
| 2424 | const Elf_Internal_Rela *rel_end; |
| 2425 | bfd *dynobj; |
| 2426 | bfd_vma *local_got_offsets; |
| 2427 | asection *sgot; |
| 2428 | asection *srelgot; |
| 2429 | asection *sreloc; |
| 2430 | |
| 2431 | sgot = NULL; |
| 2432 | srelgot = NULL; |
| 2433 | sreloc = NULL; |
| 2434 | |
| 2435 | if (info->relocatable) |
| 2436 | return TRUE; |
| 2437 | |
| 2438 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 2439 | sym_hashes = elf_sym_hashes (abfd); |
| 2440 | |
| 2441 | dynobj = elf_hash_table (info)->dynobj; |
| 2442 | local_got_offsets = elf_local_got_offsets (abfd); |
| 2443 | |
| 2444 | rel_end = relocs + sec->reloc_count; |
| 2445 | for (rel = relocs; rel < rel_end; rel++) |
| 2446 | { |
| 2447 | struct elf_link_hash_entry *h; |
| 2448 | unsigned long r_symndx; |
| 2449 | |
| 2450 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 2451 | if (r_symndx < symtab_hdr->sh_info) |
| 2452 | h = NULL; |
| 2453 | else |
| 2454 | { |
| 2455 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 2456 | while (h->root.type == bfd_link_hash_indirect |
| 2457 | || h->root.type == bfd_link_hash_warning) |
| 2458 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2459 | } |
| 2460 | |
| 2461 | /* Some relocs require a global offset table. */ |
| 2462 | if (dynobj == NULL) |
| 2463 | { |
| 2464 | switch (ELF64_R_TYPE (rel->r_info)) |
| 2465 | { |
| 2466 | case R_SH_GOTPLT_LOW16: |
| 2467 | case R_SH_GOTPLT_MEDLOW16: |
| 2468 | case R_SH_GOTPLT_MEDHI16: |
| 2469 | case R_SH_GOTPLT_HI16: |
| 2470 | case R_SH_GOTPLT10BY4: |
| 2471 | case R_SH_GOTPLT10BY8: |
| 2472 | case R_SH_GOT_LOW16: |
| 2473 | case R_SH_GOT_MEDLOW16: |
| 2474 | case R_SH_GOT_MEDHI16: |
| 2475 | case R_SH_GOT_HI16: |
| 2476 | case R_SH_GOT10BY4: |
| 2477 | case R_SH_GOT10BY8: |
| 2478 | case R_SH_GOTOFF_LOW16: |
| 2479 | case R_SH_GOTOFF_MEDLOW16: |
| 2480 | case R_SH_GOTOFF_MEDHI16: |
| 2481 | case R_SH_GOTOFF_HI16: |
| 2482 | case R_SH_GOTPC_LOW16: |
| 2483 | case R_SH_GOTPC_MEDLOW16: |
| 2484 | case R_SH_GOTPC_MEDHI16: |
| 2485 | case R_SH_GOTPC_HI16: |
| 2486 | elf_hash_table (info)->dynobj = dynobj = abfd; |
| 2487 | if (! _bfd_elf_create_got_section (dynobj, info)) |
| 2488 | return FALSE; |
| 2489 | break; |
| 2490 | |
| 2491 | default: |
| 2492 | break; |
| 2493 | } |
| 2494 | } |
| 2495 | |
| 2496 | switch (ELF64_R_TYPE (rel->r_info)) |
| 2497 | { |
| 2498 | /* This relocation describes the C++ object vtable hierarchy. |
| 2499 | Reconstruct it for later use during GC. */ |
| 2500 | case R_SH_GNU_VTINHERIT: |
| 2501 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| 2502 | return FALSE; |
| 2503 | break; |
| 2504 | |
| 2505 | /* This relocation describes which C++ vtable entries are actually |
| 2506 | used. Record for later use during GC. */ |
| 2507 | case R_SH_GNU_VTENTRY: |
| 2508 | BFD_ASSERT (h != NULL); |
| 2509 | if (h != NULL |
| 2510 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
| 2511 | return FALSE; |
| 2512 | break; |
| 2513 | |
| 2514 | force_got: |
| 2515 | case R_SH_GOT_LOW16: |
| 2516 | case R_SH_GOT_MEDLOW16: |
| 2517 | case R_SH_GOT_MEDHI16: |
| 2518 | case R_SH_GOT_HI16: |
| 2519 | case R_SH_GOT10BY4: |
| 2520 | case R_SH_GOT10BY8: |
| 2521 | /* This symbol requires a global offset table entry. */ |
| 2522 | |
| 2523 | if (sgot == NULL) |
| 2524 | { |
| 2525 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
| 2526 | BFD_ASSERT (sgot != NULL); |
| 2527 | } |
| 2528 | |
| 2529 | if (srelgot == NULL |
| 2530 | && (h != NULL || info->shared)) |
| 2531 | { |
| 2532 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
| 2533 | if (srelgot == NULL) |
| 2534 | { |
| 2535 | srelgot = bfd_make_section_with_flags (dynobj, |
| 2536 | ".rela.got", |
| 2537 | (SEC_ALLOC |
| 2538 | | SEC_LOAD |
| 2539 | | SEC_HAS_CONTENTS |
| 2540 | | SEC_IN_MEMORY |
| 2541 | | SEC_LINKER_CREATED |
| 2542 | | SEC_READONLY)); |
| 2543 | if (srelgot == NULL |
| 2544 | || ! bfd_set_section_alignment (dynobj, srelgot, 2)) |
| 2545 | return FALSE; |
| 2546 | } |
| 2547 | } |
| 2548 | |
| 2549 | if (h != NULL) |
| 2550 | { |
| 2551 | if (h->type == STT_DATALABEL) |
| 2552 | { |
| 2553 | struct elf_sh64_link_hash_entry *hsh; |
| 2554 | |
| 2555 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2556 | hsh = (struct elf_sh64_link_hash_entry *)h; |
| 2557 | if (hsh->datalabel_got_offset != (bfd_vma) -1) |
| 2558 | break; |
| 2559 | |
| 2560 | hsh->datalabel_got_offset = sgot->size; |
| 2561 | } |
| 2562 | else |
| 2563 | { |
| 2564 | if (h->got.offset != (bfd_vma) -1) |
| 2565 | { |
| 2566 | /* We have already allocated space in the .got. */ |
| 2567 | break; |
| 2568 | } |
| 2569 | h->got.offset = sgot->size; |
| 2570 | } |
| 2571 | |
| 2572 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 2573 | if (h->dynindx == -1) |
| 2574 | { |
| 2575 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2576 | return FALSE; |
| 2577 | } |
| 2578 | |
| 2579 | srelgot->size += sizeof (Elf64_External_Rela); |
| 2580 | } |
| 2581 | else |
| 2582 | { |
| 2583 | /* This is a global offset table entry for a local |
| 2584 | symbol. */ |
| 2585 | if (local_got_offsets == NULL) |
| 2586 | { |
| 2587 | size_t size; |
| 2588 | register unsigned int i; |
| 2589 | |
| 2590 | size = symtab_hdr->sh_info * sizeof (bfd_vma); |
| 2591 | /* Reserve space for both the datalabel and |
| 2592 | codelabel local GOT offsets. */ |
| 2593 | size *= 2; |
| 2594 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); |
| 2595 | if (local_got_offsets == NULL) |
| 2596 | return FALSE; |
| 2597 | elf_local_got_offsets (abfd) = local_got_offsets; |
| 2598 | for (i = 0; i < symtab_hdr->sh_info; i++) |
| 2599 | local_got_offsets[i] = (bfd_vma) -1; |
| 2600 | for (; i < 2 * symtab_hdr->sh_info; i++) |
| 2601 | local_got_offsets[i] = (bfd_vma) -1; |
| 2602 | } |
| 2603 | if ((rel->r_addend & 1) != 0) |
| 2604 | { |
| 2605 | if (local_got_offsets[symtab_hdr->sh_info |
| 2606 | + r_symndx] != (bfd_vma) -1) |
| 2607 | { |
| 2608 | /* We have already allocated space in the .got. */ |
| 2609 | break; |
| 2610 | } |
| 2611 | local_got_offsets[symtab_hdr->sh_info |
| 2612 | + r_symndx] = sgot->size; |
| 2613 | } |
| 2614 | else |
| 2615 | { |
| 2616 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) |
| 2617 | { |
| 2618 | /* We have already allocated space in the .got. */ |
| 2619 | break; |
| 2620 | } |
| 2621 | local_got_offsets[r_symndx] = sgot->size; |
| 2622 | } |
| 2623 | |
| 2624 | if (info->shared) |
| 2625 | { |
| 2626 | /* If we are generating a shared object, we need to |
| 2627 | output a R_SH_RELATIVE reloc so that the dynamic |
| 2628 | linker can adjust this GOT entry. */ |
| 2629 | srelgot->size += sizeof (Elf64_External_Rela); |
| 2630 | } |
| 2631 | } |
| 2632 | |
| 2633 | sgot->size += 8; |
| 2634 | |
| 2635 | break; |
| 2636 | |
| 2637 | case R_SH_GOTPLT_LOW16: |
| 2638 | case R_SH_GOTPLT_MEDLOW16: |
| 2639 | case R_SH_GOTPLT_MEDHI16: |
| 2640 | case R_SH_GOTPLT_HI16: |
| 2641 | case R_SH_GOTPLT10BY4: |
| 2642 | case R_SH_GOTPLT10BY8: |
| 2643 | /* If this is a local symbol, we resolve it directly without |
| 2644 | creating a procedure linkage table entry. */ |
| 2645 | |
| 2646 | if (h == NULL |
| 2647 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL |
| 2648 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN |
| 2649 | || ! info->shared |
| 2650 | || info->symbolic |
| 2651 | || h->dynindx == -1 |
| 2652 | || h->got.offset != (bfd_vma) -1) |
| 2653 | goto force_got; |
| 2654 | |
| 2655 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 2656 | if (h->dynindx == -1) |
| 2657 | { |
| 2658 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2659 | return FALSE; |
| 2660 | } |
| 2661 | |
| 2662 | h->needs_plt = 1; |
| 2663 | |
| 2664 | break; |
| 2665 | |
| 2666 | case R_SH_PLT_LOW16: |
| 2667 | case R_SH_PLT_MEDLOW16: |
| 2668 | case R_SH_PLT_MEDHI16: |
| 2669 | case R_SH_PLT_HI16: |
| 2670 | /* This symbol requires a procedure linkage table entry. We |
| 2671 | actually build the entry in adjust_dynamic_symbol, |
| 2672 | because this might be a case of linking PIC code which is |
| 2673 | never referenced by a dynamic object, in which case we |
| 2674 | don't need to generate a procedure linkage table entry |
| 2675 | after all. */ |
| 2676 | |
| 2677 | /* If this is a local symbol, we resolve it directly without |
| 2678 | creating a procedure linkage table entry. */ |
| 2679 | if (h == NULL) |
| 2680 | continue; |
| 2681 | |
| 2682 | if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL |
| 2683 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) |
| 2684 | break; |
| 2685 | |
| 2686 | h->needs_plt = 1; |
| 2687 | |
| 2688 | break; |
| 2689 | |
| 2690 | case R_SH_64: |
| 2691 | case R_SH_64_PCREL: |
| 2692 | if (h != NULL) |
| 2693 | h->non_got_ref = 1; |
| 2694 | |
| 2695 | /* If we are creating a shared library, and this is a reloc |
| 2696 | against a global symbol, or a non PC relative reloc |
| 2697 | against a local symbol, then we need to copy the reloc |
| 2698 | into the shared library. However, if we are linking with |
| 2699 | -Bsymbolic, we do not need to copy a reloc against a |
| 2700 | global symbol which is defined in an object we are |
| 2701 | including in the link (i.e., DEF_REGULAR is set). At |
| 2702 | this point we have not seen all the input files, so it is |
| 2703 | possible that DEF_REGULAR is not set now but will be set |
| 2704 | later (it is never cleared). We account for that |
| 2705 | possibility below by storing information in the |
| 2706 | pcrel_relocs_copied field of the hash table entry. */ |
| 2707 | if (info->shared |
| 2708 | && (sec->flags & SEC_ALLOC) != 0 |
| 2709 | && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL |
| 2710 | || (h != NULL |
| 2711 | && (! info->symbolic |
| 2712 | || !h->def_regular)))) |
| 2713 | { |
| 2714 | /* When creating a shared object, we must copy these |
| 2715 | reloc types into the output file. We create a reloc |
| 2716 | section in dynobj and make room for this reloc. */ |
| 2717 | if (sreloc == NULL) |
| 2718 | { |
| 2719 | const char *name; |
| 2720 | |
| 2721 | name = (bfd_elf_string_from_elf_section |
| 2722 | (abfd, |
| 2723 | elf_elfheader (abfd)->e_shstrndx, |
| 2724 | elf_section_data (sec)->rel_hdr.sh_name)); |
| 2725 | if (name == NULL) |
| 2726 | return FALSE; |
| 2727 | |
| 2728 | BFD_ASSERT (CONST_STRNEQ (name, ".rela") |
| 2729 | && strcmp (bfd_get_section_name (abfd, sec), |
| 2730 | name + 5) == 0); |
| 2731 | |
| 2732 | sreloc = bfd_get_section_by_name (dynobj, name); |
| 2733 | if (sreloc == NULL) |
| 2734 | { |
| 2735 | flagword flags; |
| 2736 | |
| 2737 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
| 2738 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); |
| 2739 | if ((sec->flags & SEC_ALLOC) != 0) |
| 2740 | flags |= SEC_ALLOC | SEC_LOAD; |
| 2741 | sreloc = bfd_make_section_with_flags (dynobj, |
| 2742 | name, |
| 2743 | flags); |
| 2744 | if (sreloc == NULL |
| 2745 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
| 2746 | return FALSE; |
| 2747 | } |
| 2748 | } |
| 2749 | |
| 2750 | sreloc->size += sizeof (Elf64_External_Rela); |
| 2751 | |
| 2752 | /* If we are linking with -Bsymbolic, and this is a |
| 2753 | global symbol, we count the number of PC relative |
| 2754 | relocations we have entered for this symbol, so that |
| 2755 | we can discard them again if the symbol is later |
| 2756 | defined by a regular object. Note that this function |
| 2757 | is only called if we are using an elf_sh linker |
| 2758 | hash table, which means that h is really a pointer to |
| 2759 | an elf_sh_link_hash_entry. */ |
| 2760 | if (h != NULL && info->symbolic |
| 2761 | && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL) |
| 2762 | { |
| 2763 | struct elf_sh64_link_hash_entry *eh; |
| 2764 | struct elf_sh64_pcrel_relocs_copied *p; |
| 2765 | |
| 2766 | eh = (struct elf_sh64_link_hash_entry *) h; |
| 2767 | |
| 2768 | for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) |
| 2769 | if (p->section == sreloc) |
| 2770 | break; |
| 2771 | |
| 2772 | if (p == NULL) |
| 2773 | { |
| 2774 | p = ((struct elf_sh64_pcrel_relocs_copied *) |
| 2775 | bfd_alloc (dynobj, sizeof *p)); |
| 2776 | if (p == NULL) |
| 2777 | return FALSE; |
| 2778 | p->next = eh->pcrel_relocs_copied; |
| 2779 | eh->pcrel_relocs_copied = p; |
| 2780 | p->section = sreloc; |
| 2781 | p->count = 0; |
| 2782 | } |
| 2783 | |
| 2784 | ++p->count; |
| 2785 | } |
| 2786 | } |
| 2787 | |
| 2788 | break; |
| 2789 | } |
| 2790 | } |
| 2791 | |
| 2792 | return TRUE; |
| 2793 | } |
| 2794 | |
| 2795 | static int |
| 2796 | sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) |
| 2797 | { |
| 2798 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL) |
| 2799 | return STT_DATALABEL; |
| 2800 | |
| 2801 | return type; |
| 2802 | } |
| 2803 | |
| 2804 | /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c. |
| 2805 | Either file can presumably exist without the other, but do not differ |
| 2806 | in elf-size-ness. How to share? |
| 2807 | |
| 2808 | Hook called by the linker routine which adds symbols from an object |
| 2809 | file. We must make indirect symbols for undefined symbols marked with |
| 2810 | STT_DATALABEL, so relocations passing them will pick up that attribute |
| 2811 | and neutralize STO_SH5_ISA32 found on the symbol definition. |
| 2812 | |
| 2813 | There is a problem, though: We want to fill in the hash-table entry for |
| 2814 | this symbol and signal to the caller that no further processing is |
| 2815 | needed. But we don't have the index for this hash-table entry. We |
| 2816 | rely here on that the current entry is the first hash-entry with NULL, |
| 2817 | which seems brittle. Also, iterating over the hash-table to find that |
| 2818 | entry is a linear operation on the number of symbols in this input |
| 2819 | file, and this function should take constant time, so that's not good |
| 2820 | too. Only comfort is that DataLabel references should only be found in |
| 2821 | hand-written assembly code and thus be rare. FIXME: Talk maintainers |
| 2822 | into adding an option to elf_add_symbol_hook (preferably) for the index |
| 2823 | or the hash entry, alternatively adding the index to Elf_Internal_Sym |
| 2824 | (not so good). */ |
| 2825 | |
| 2826 | static bfd_boolean |
| 2827 | sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info, |
| 2828 | Elf_Internal_Sym *sym, const char **namep, |
| 2829 | flagword *flagsp ATTRIBUTE_UNUSED, |
| 2830 | asection **secp, bfd_vma *valp) |
| 2831 | { |
| 2832 | /* We want to do this for relocatable as well as final linking. */ |
| 2833 | if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL |
| 2834 | && is_elf_hash_table (info->hash)) |
| 2835 | { |
| 2836 | struct elf_link_hash_entry *h; |
| 2837 | |
| 2838 | /* For relocatable links, we register the DataLabel sym in its own |
| 2839 | right, and tweak the name when it's output. Otherwise, we make |
| 2840 | an indirect symbol of it. */ |
| 2841 | flagword flags |
| 2842 | = info->relocatable || info->emitrelocations |
| 2843 | ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT; |
| 2844 | |
| 2845 | char *dl_name |
| 2846 | = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX)); |
| 2847 | struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd); |
| 2848 | |
| 2849 | BFD_ASSERT (sym_hash != NULL); |
| 2850 | |
| 2851 | /* Allocation may fail. */ |
| 2852 | if (dl_name == NULL) |
| 2853 | return FALSE; |
| 2854 | |
| 2855 | strcpy (dl_name, *namep); |
| 2856 | strcat (dl_name, DATALABEL_SUFFIX); |
| 2857 | |
| 2858 | h = (struct elf_link_hash_entry *) |
| 2859 | bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE); |
| 2860 | |
| 2861 | if (h == NULL) |
| 2862 | { |
| 2863 | /* No previous datalabel symbol. Make one. */ |
| 2864 | struct bfd_link_hash_entry *bh = NULL; |
| 2865 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
| 2866 | |
| 2867 | if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name, |
| 2868 | flags, *secp, *valp, |
| 2869 | *namep, FALSE, |
| 2870 | bed->collect, &bh)) |
| 2871 | { |
| 2872 | free (dl_name); |
| 2873 | return FALSE; |
| 2874 | } |
| 2875 | |
| 2876 | h = (struct elf_link_hash_entry *) bh; |
| 2877 | h->non_elf = 0; |
| 2878 | h->type = STT_DATALABEL; |
| 2879 | } |
| 2880 | else |
| 2881 | /* If a new symbol was created, it holds the allocated name. |
| 2882 | Otherwise, we don't need it anymore and should deallocate it. */ |
| 2883 | free (dl_name); |
| 2884 | |
| 2885 | if (h->type != STT_DATALABEL |
| 2886 | || ((info->relocatable || info->emitrelocations) |
| 2887 | && h->root.type != bfd_link_hash_undefined) |
| 2888 | || (! info->relocatable && !info->emitrelocations |
| 2889 | && h->root.type != bfd_link_hash_indirect)) |
| 2890 | { |
| 2891 | /* Make sure we don't get confused on invalid input. */ |
| 2892 | (*_bfd_error_handler) |
| 2893 | (_("%s: encountered datalabel symbol in input"), |
| 2894 | bfd_get_filename (abfd)); |
| 2895 | bfd_set_error (bfd_error_bad_value); |
| 2896 | return FALSE; |
| 2897 | } |
| 2898 | |
| 2899 | /* Now find the hash-table slot for this entry and fill it in. */ |
| 2900 | while (*sym_hash != NULL) |
| 2901 | sym_hash++; |
| 2902 | *sym_hash = h; |
| 2903 | |
| 2904 | /* Signal to caller to skip this symbol - we've handled it. */ |
| 2905 | *namep = NULL; |
| 2906 | } |
| 2907 | |
| 2908 | return TRUE; |
| 2909 | } |
| 2910 | |
| 2911 | /* This hook function is called before the linker writes out a global |
| 2912 | symbol. For relocatable links, DataLabel symbols will be present in |
| 2913 | linker output. We cut off the special suffix on those symbols, so the |
| 2914 | right name appears in the output. |
| 2915 | |
| 2916 | When linking and emitting relocations, there can appear global symbols |
| 2917 | that are not referenced by relocs, but rather only implicitly through |
| 2918 | DataLabel references, a relation that is not visible to the linker. |
| 2919 | Since no stripping of global symbols in done when doing such linking, |
| 2920 | we don't need to look up and make sure to emit the main symbol for each |
| 2921 | DataLabel symbol. */ |
| 2922 | |
| 2923 | static bfd_boolean |
| 2924 | sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info, |
| 2925 | const char *cname, |
| 2926 | Elf_Internal_Sym *sym, |
| 2927 | asection *input_sec ATTRIBUTE_UNUSED, |
| 2928 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) |
| 2929 | { |
| 2930 | char *name = (char *) cname; |
| 2931 | |
| 2932 | if (info->relocatable || info->emitrelocations) |
| 2933 | { |
| 2934 | if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL) |
| 2935 | name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0; |
| 2936 | } |
| 2937 | |
| 2938 | return TRUE; |
| 2939 | } |
| 2940 | |
| 2941 | /* Set bit 0 on the entry address; it always points to SHmedia code. This |
| 2942 | is mostly for symmetry with the 32-bit format, where code can be |
| 2943 | SHcompact and we need to make a distinction to make sure execution |
| 2944 | starts in the right ISA mode. It is also convenient for a loader, |
| 2945 | which would otherwise have to set this bit when loading a TR register |
| 2946 | before jumping to the program entry. */ |
| 2947 | |
| 2948 | static void |
| 2949 | sh64_elf64_final_write_processing (bfd *abfd, |
| 2950 | bfd_boolean linker ATTRIBUTE_UNUSED) |
| 2951 | { |
| 2952 | /* FIXME: Perhaps we shouldn't do this if the entry address was supplied |
| 2953 | numerically, but we currently lack the infrastructure to recognize |
| 2954 | that: The entry symbol, and info whether it is numeric or a symbol |
| 2955 | name is kept private in the linker. */ |
| 2956 | if (elf_elfheader (abfd)->e_type == ET_EXEC) |
| 2957 | elf_elfheader (abfd)->e_entry |= 1; |
| 2958 | } |
| 2959 | |
| 2960 | /* First entry in an absolute procedure linkage table look like this. */ |
| 2961 | |
| 2962 | static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] = |
| 2963 | { |
| 2964 | 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */ |
| 2965 | 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */ |
| 2966 | 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */ |
| 2967 | 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */ |
| 2968 | 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ |
| 2969 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ |
| 2970 | 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ |
| 2971 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ |
| 2972 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2973 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2974 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2975 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2976 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2977 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2978 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2979 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 2980 | }; |
| 2981 | |
| 2982 | static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] = |
| 2983 | { |
| 2984 | 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */ |
| 2985 | 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */ |
| 2986 | 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */ |
| 2987 | 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */ |
| 2988 | 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ |
| 2989 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ |
| 2990 | 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ |
| 2991 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ |
| 2992 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 2993 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 2994 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 2995 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 2996 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 2997 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 2998 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 2999 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 3000 | }; |
| 3001 | |
| 3002 | /* Sebsequent entries in an absolute procedure linkage table look like |
| 3003 | this. */ |
| 3004 | |
| 3005 | static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] = |
| 3006 | { |
| 3007 | 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */ |
| 3008 | 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */ |
| 3009 | 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */ |
| 3010 | 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */ |
| 3011 | 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */ |
| 3012 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ |
| 3013 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ |
| 3014 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 3015 | 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */ |
| 3016 | 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */ |
| 3017 | 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */ |
| 3018 | 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ |
| 3019 | 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ |
| 3020 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ |
| 3021 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 3022 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 3023 | }; |
| 3024 | |
| 3025 | static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] = |
| 3026 | { |
| 3027 | 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */ |
| 3028 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ |
| 3029 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ |
| 3030 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ |
| 3031 | 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */ |
| 3032 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ |
| 3033 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ |
| 3034 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 3035 | 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */ |
| 3036 | 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */ |
| 3037 | 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */ |
| 3038 | 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ |
| 3039 | 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ |
| 3040 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ |
| 3041 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 3042 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 3043 | }; |
| 3044 | |
| 3045 | /* Entries in a PIC procedure linkage table look like this. */ |
| 3046 | |
| 3047 | static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] = |
| 3048 | { |
| 3049 | 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */ |
| 3050 | 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */ |
| 3051 | 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */ |
| 3052 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ |
| 3053 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ |
| 3054 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 3055 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 3056 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ |
| 3057 | 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */ |
| 3058 | 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */ |
| 3059 | 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ |
| 3060 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ |
| 3061 | 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ |
| 3062 | 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ |
| 3063 | 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ |
| 3064 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ |
| 3065 | }; |
| 3066 | |
| 3067 | static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] = |
| 3068 | { |
| 3069 | 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */ |
| 3070 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */ |
| 3071 | 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */ |
| 3072 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ |
| 3073 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ |
| 3074 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 3075 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 3076 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ |
| 3077 | 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */ |
| 3078 | 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */ |
| 3079 | 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ |
| 3080 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ |
| 3081 | 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ |
| 3082 | 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ |
| 3083 | 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ |
| 3084 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ |
| 3085 | }; |
| 3086 | |
| 3087 | static const bfd_byte *elf_sh64_plt0_entry; |
| 3088 | static const bfd_byte *elf_sh64_plt_entry; |
| 3089 | static const bfd_byte *elf_sh64_pic_plt_entry; |
| 3090 | |
| 3091 | /* Create an entry in an sh ELF linker hash table. */ |
| 3092 | |
| 3093 | static struct bfd_hash_entry * |
| 3094 | sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry, |
| 3095 | struct bfd_hash_table *table, |
| 3096 | const char *string) |
| 3097 | { |
| 3098 | struct elf_sh64_link_hash_entry *ret = |
| 3099 | (struct elf_sh64_link_hash_entry *) entry; |
| 3100 | |
| 3101 | /* Allocate the structure if it has not already been allocated by a |
| 3102 | subclass. */ |
| 3103 | if (ret == (struct elf_sh64_link_hash_entry *) NULL) |
| 3104 | ret = ((struct elf_sh64_link_hash_entry *) |
| 3105 | bfd_hash_allocate (table, |
| 3106 | sizeof (struct elf_sh64_link_hash_entry))); |
| 3107 | if (ret == (struct elf_sh64_link_hash_entry *) NULL) |
| 3108 | return (struct bfd_hash_entry *) ret; |
| 3109 | |
| 3110 | /* Call the allocation method of the superclass. */ |
| 3111 | ret = ((struct elf_sh64_link_hash_entry *) |
| 3112 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 3113 | table, string)); |
| 3114 | if (ret != (struct elf_sh64_link_hash_entry *) NULL) |
| 3115 | { |
| 3116 | ret->pcrel_relocs_copied = NULL; |
| 3117 | ret->datalabel_got_offset = (bfd_vma) -1; |
| 3118 | } |
| 3119 | |
| 3120 | return (struct bfd_hash_entry *) ret; |
| 3121 | } |
| 3122 | |
| 3123 | /* Create an sh64 ELF linker hash table. */ |
| 3124 | |
| 3125 | static struct bfd_link_hash_table * |
| 3126 | sh64_elf64_link_hash_table_create (bfd *abfd) |
| 3127 | { |
| 3128 | struct elf_sh64_link_hash_table *ret; |
| 3129 | |
| 3130 | ret = ((struct elf_sh64_link_hash_table *) |
| 3131 | bfd_malloc (sizeof (struct elf_sh64_link_hash_table))); |
| 3132 | if (ret == (struct elf_sh64_link_hash_table *) NULL) |
| 3133 | return NULL; |
| 3134 | |
| 3135 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
| 3136 | sh64_elf64_link_hash_newfunc, |
| 3137 | sizeof (struct elf_sh64_link_hash_entry))) |
| 3138 | { |
| 3139 | free (ret); |
| 3140 | return NULL; |
| 3141 | } |
| 3142 | |
| 3143 | return &ret->root.root; |
| 3144 | } |
| 3145 | |
| 3146 | inline static void |
| 3147 | movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr) |
| 3148 | { |
| 3149 | bfd_put_32 (output_bfd, |
| 3150 | bfd_get_32 (output_bfd, addr) |
| 3151 | | ((value >> 6) & 0x3fffc00), |
| 3152 | addr); |
| 3153 | bfd_put_32 (output_bfd, |
| 3154 | bfd_get_32 (output_bfd, addr + 4) |
| 3155 | | ((value << 10) & 0x3fffc00), |
| 3156 | addr + 4); |
| 3157 | } |
| 3158 | |
| 3159 | inline static void |
| 3160 | movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr) |
| 3161 | { |
| 3162 | bfd_put_32 (output_bfd, |
| 3163 | bfd_get_32 (output_bfd, addr) |
| 3164 | | ((value >> 38) & 0x3fffc00), |
| 3165 | addr); |
| 3166 | bfd_put_32 (output_bfd, |
| 3167 | bfd_get_32 (output_bfd, addr + 4) |
| 3168 | | ((value >> 22) & 0x3fffc00), |
| 3169 | addr + 4); |
| 3170 | bfd_put_32 (output_bfd, |
| 3171 | bfd_get_32 (output_bfd, addr + 8) |
| 3172 | | ((value >> 6) & 0x3fffc00), |
| 3173 | addr + 8); |
| 3174 | bfd_put_32 (output_bfd, |
| 3175 | bfd_get_32 (output_bfd, addr + 12) |
| 3176 | | ((value << 10) & 0x3fffc00), |
| 3177 | addr + 12); |
| 3178 | } |
| 3179 | |
| 3180 | /* Create dynamic sections when linking against a dynamic object. */ |
| 3181 | |
| 3182 | static bfd_boolean |
| 3183 | sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
| 3184 | { |
| 3185 | flagword flags, pltflags; |
| 3186 | register asection *s; |
| 3187 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
| 3188 | int ptralign = 0; |
| 3189 | |
| 3190 | switch (bed->s->arch_size) |
| 3191 | { |
| 3192 | case 32: |
| 3193 | ptralign = 2; |
| 3194 | break; |
| 3195 | |
| 3196 | case 64: |
| 3197 | ptralign = 3; |
| 3198 | break; |
| 3199 | |
| 3200 | default: |
| 3201 | bfd_set_error (bfd_error_bad_value); |
| 3202 | return FALSE; |
| 3203 | } |
| 3204 | |
| 3205 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and |
| 3206 | .rel[a].bss sections. */ |
| 3207 | |
| 3208 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
| 3209 | | SEC_LINKER_CREATED); |
| 3210 | |
| 3211 | pltflags = flags; |
| 3212 | pltflags |= SEC_CODE; |
| 3213 | if (bed->plt_not_loaded) |
| 3214 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); |
| 3215 | if (bed->plt_readonly) |
| 3216 | pltflags |= SEC_READONLY; |
| 3217 | |
| 3218 | s = bfd_make_section_with_flags (abfd, ".plt", pltflags); |
| 3219 | if (s == NULL |
| 3220 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) |
| 3221 | return FALSE; |
| 3222 | |
| 3223 | if (bed->want_plt_sym) |
| 3224 | { |
| 3225 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the |
| 3226 | .plt section. */ |
| 3227 | struct elf_link_hash_entry *h; |
| 3228 | struct bfd_link_hash_entry *bh = NULL; |
| 3229 | |
| 3230 | if (! (_bfd_generic_link_add_one_symbol |
| 3231 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, |
| 3232 | (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh))) |
| 3233 | return FALSE; |
| 3234 | |
| 3235 | h = (struct elf_link_hash_entry *) bh; |
| 3236 | h->def_regular = 1; |
| 3237 | h->type = STT_OBJECT; |
| 3238 | elf_hash_table (info)->hplt = h; |
| 3239 | |
| 3240 | if (info->shared |
| 3241 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 3242 | return FALSE; |
| 3243 | } |
| 3244 | |
| 3245 | s = bfd_make_section_with_flags (abfd, |
| 3246 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt", |
| 3247 | flags | SEC_READONLY); |
| 3248 | if (s == NULL |
| 3249 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
| 3250 | return FALSE; |
| 3251 | |
| 3252 | if (! _bfd_elf_create_got_section (abfd, info)) |
| 3253 | return FALSE; |
| 3254 | |
| 3255 | { |
| 3256 | const char *secname; |
| 3257 | char *relname; |
| 3258 | flagword secflags; |
| 3259 | asection *sec; |
| 3260 | |
| 3261 | for (sec = abfd->sections; sec; sec = sec->next) |
| 3262 | { |
| 3263 | secflags = bfd_get_section_flags (abfd, sec); |
| 3264 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) |
| 3265 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) |
| 3266 | continue; |
| 3267 | secname = bfd_get_section_name (abfd, sec); |
| 3268 | relname = (char *) bfd_malloc (strlen (secname) + 6); |
| 3269 | strcpy (relname, ".rela"); |
| 3270 | strcat (relname, secname); |
| 3271 | s = bfd_make_section_with_flags (abfd, relname, |
| 3272 | flags | SEC_READONLY); |
| 3273 | if (s == NULL |
| 3274 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
| 3275 | return FALSE; |
| 3276 | } |
| 3277 | } |
| 3278 | |
| 3279 | if (bed->want_dynbss) |
| 3280 | { |
| 3281 | /* The .dynbss section is a place to put symbols which are defined |
| 3282 | by dynamic objects, are referenced by regular objects, and are |
| 3283 | not functions. We must allocate space for them in the process |
| 3284 | image and use a R_*_COPY reloc to tell the dynamic linker to |
| 3285 | initialize them at run time. The linker script puts the .dynbss |
| 3286 | section into the .bss section of the final image. */ |
| 3287 | s = bfd_make_section_with_flags (abfd, ".dynbss", |
| 3288 | SEC_ALLOC | SEC_LINKER_CREATED); |
| 3289 | if (s == NULL) |
| 3290 | return FALSE; |
| 3291 | |
| 3292 | /* The .rel[a].bss section holds copy relocs. This section is not |
| 3293 | normally needed. We need to create it here, though, so that the |
| 3294 | linker will map it to an output section. We can't just create it |
| 3295 | only if we need it, because we will not know whether we need it |
| 3296 | until we have seen all the input files, and the first time the |
| 3297 | main linker code calls BFD after examining all the input files |
| 3298 | (size_dynamic_sections) the input sections have already been |
| 3299 | mapped to the output sections. If the section turns out not to |
| 3300 | be needed, we can discard it later. We will never need this |
| 3301 | section when generating a shared object, since they do not use |
| 3302 | copy relocs. */ |
| 3303 | if (! info->shared) |
| 3304 | { |
| 3305 | s = bfd_make_section_with_flags (abfd, |
| 3306 | (bed->default_use_rela_p |
| 3307 | ? ".rela.bss" : ".rel.bss"), |
| 3308 | flags | SEC_READONLY); |
| 3309 | if (s == NULL |
| 3310 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
| 3311 | return FALSE; |
| 3312 | } |
| 3313 | } |
| 3314 | |
| 3315 | return TRUE; |
| 3316 | } |
| 3317 | \f |
| 3318 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 3319 | regular object. The current definition is in some section of the |
| 3320 | dynamic object, but we're not including those sections. We have to |
| 3321 | change the definition to something the rest of the link can |
| 3322 | understand. */ |
| 3323 | |
| 3324 | static bfd_boolean |
| 3325 | sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 3326 | struct elf_link_hash_entry *h) |
| 3327 | { |
| 3328 | bfd *dynobj; |
| 3329 | asection *s; |
| 3330 | |
| 3331 | dynobj = elf_hash_table (info)->dynobj; |
| 3332 | |
| 3333 | /* Make sure we know what is going on here. */ |
| 3334 | BFD_ASSERT (dynobj != NULL |
| 3335 | && (h->needs_plt |
| 3336 | || h->u.weakdef != NULL |
| 3337 | || (h->def_dynamic |
| 3338 | && h->ref_regular |
| 3339 | && !h->def_regular))); |
| 3340 | |
| 3341 | /* If this is a function, put it in the procedure linkage table. We |
| 3342 | will fill in the contents of the procedure linkage table later, |
| 3343 | when we know the address of the .got section. */ |
| 3344 | if (h->type == STT_FUNC |
| 3345 | || h->needs_plt) |
| 3346 | { |
| 3347 | if (! info->shared |
| 3348 | && !h->def_dynamic |
| 3349 | && !h->ref_dynamic) |
| 3350 | { |
| 3351 | /* This case can occur if we saw a PLT reloc in an input |
| 3352 | file, but the symbol was never referred to by a dynamic |
| 3353 | object. In such a case, we don't actually need to build |
| 3354 | a procedure linkage table, and we can just do a REL64 |
| 3355 | reloc instead. */ |
| 3356 | BFD_ASSERT (h->needs_plt); |
| 3357 | return TRUE; |
| 3358 | } |
| 3359 | |
| 3360 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 3361 | if (h->dynindx == -1) |
| 3362 | { |
| 3363 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 3364 | return FALSE; |
| 3365 | } |
| 3366 | |
| 3367 | s = bfd_get_section_by_name (dynobj, ".plt"); |
| 3368 | BFD_ASSERT (s != NULL); |
| 3369 | |
| 3370 | /* If this is the first .plt entry, make room for the special |
| 3371 | first entry. */ |
| 3372 | if (s->size == 0) |
| 3373 | s->size += PLT_ENTRY_SIZE; |
| 3374 | |
| 3375 | /* If this symbol is not defined in a regular file, and we are |
| 3376 | not generating a shared library, then set the symbol to this |
| 3377 | location in the .plt. This is required to make function |
| 3378 | pointers compare as equal between the normal executable and |
| 3379 | the shared library. */ |
| 3380 | if (! info->shared |
| 3381 | && !h->def_regular) |
| 3382 | { |
| 3383 | h->root.u.def.section = s; |
| 3384 | h->root.u.def.value = s->size; |
| 3385 | } |
| 3386 | |
| 3387 | h->plt.offset = s->size; |
| 3388 | |
| 3389 | /* Make room for this entry. */ |
| 3390 | s->size += elf_sh64_sizeof_plt (info); |
| 3391 | |
| 3392 | /* We also need to make an entry in the .got.plt section, which |
| 3393 | will be placed in the .got section by the linker script. */ |
| 3394 | |
| 3395 | s = bfd_get_section_by_name (dynobj, ".got.plt"); |
| 3396 | BFD_ASSERT (s != NULL); |
| 3397 | s->size += 8; |
| 3398 | |
| 3399 | /* We also need to make an entry in the .rela.plt section. */ |
| 3400 | |
| 3401 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); |
| 3402 | BFD_ASSERT (s != NULL); |
| 3403 | s->size += sizeof (Elf64_External_Rela); |
| 3404 | |
| 3405 | return TRUE; |
| 3406 | } |
| 3407 | |
| 3408 | /* If this is a weak symbol, and there is a real definition, the |
| 3409 | processor independent code will have arranged for us to see the |
| 3410 | real definition first, and we can just use the same value. */ |
| 3411 | if (h->u.weakdef != NULL) |
| 3412 | { |
| 3413 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 3414 | || h->u.weakdef->root.type == bfd_link_hash_defweak); |
| 3415 | h->root.u.def.section = h->u.weakdef->root.u.def.section; |
| 3416 | h->root.u.def.value = h->u.weakdef->root.u.def.value; |
| 3417 | return TRUE; |
| 3418 | } |
| 3419 | |
| 3420 | /* This is a reference to a symbol defined by a dynamic object which |
| 3421 | is not a function. */ |
| 3422 | |
| 3423 | /* If we are creating a shared library, we must presume that the |
| 3424 | only references to the symbol are via the global offset table. |
| 3425 | For such cases we need not do anything here; the relocations will |
| 3426 | be handled correctly by relocate_section. */ |
| 3427 | if (info->shared) |
| 3428 | return TRUE; |
| 3429 | |
| 3430 | /* If there are no references to this symbol that do not use the |
| 3431 | GOT, we don't need to generate a copy reloc. */ |
| 3432 | if (!h->non_got_ref) |
| 3433 | return TRUE; |
| 3434 | |
| 3435 | if (h->size == 0) |
| 3436 | { |
| 3437 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), |
| 3438 | h->root.root.string); |
| 3439 | return TRUE; |
| 3440 | } |
| 3441 | |
| 3442 | /* We must allocate the symbol in our .dynbss section, which will |
| 3443 | become part of the .bss section of the executable. There will be |
| 3444 | an entry for this symbol in the .dynsym section. The dynamic |
| 3445 | object will contain position independent code, so all references |
| 3446 | from the dynamic object to this symbol will go through the global |
| 3447 | offset table. The dynamic linker will use the .dynsym entry to |
| 3448 | determine the address it must put in the global offset table, so |
| 3449 | both the dynamic object and the regular object will refer to the |
| 3450 | same memory location for the variable. */ |
| 3451 | |
| 3452 | s = bfd_get_section_by_name (dynobj, ".dynbss"); |
| 3453 | BFD_ASSERT (s != NULL); |
| 3454 | |
| 3455 | /* We must generate a R_SH_COPY reloc to tell the dynamic linker to |
| 3456 | copy the initial value out of the dynamic object and into the |
| 3457 | runtime process image. We need to remember the offset into the |
| 3458 | .rela.bss section we are going to use. */ |
| 3459 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
| 3460 | { |
| 3461 | asection *srel; |
| 3462 | |
| 3463 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); |
| 3464 | BFD_ASSERT (srel != NULL); |
| 3465 | srel->size += sizeof (Elf64_External_Rela); |
| 3466 | h->needs_copy = 1; |
| 3467 | } |
| 3468 | |
| 3469 | return _bfd_elf_adjust_dynamic_copy (h, s); |
| 3470 | } |
| 3471 | |
| 3472 | /* This function is called via sh_elf_link_hash_traverse if we are |
| 3473 | creating a shared object with -Bsymbolic. It discards the space |
| 3474 | allocated to copy PC relative relocs against symbols which are |
| 3475 | defined in regular objects. We allocated space for them in the |
| 3476 | check_relocs routine, but we won't fill them in in the |
| 3477 | relocate_section routine. */ |
| 3478 | |
| 3479 | static bfd_boolean |
| 3480 | sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h, |
| 3481 | void *ignore ATTRIBUTE_UNUSED) |
| 3482 | { |
| 3483 | struct elf_sh64_pcrel_relocs_copied *s; |
| 3484 | |
| 3485 | if (h->root.root.type == bfd_link_hash_warning) |
| 3486 | h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link; |
| 3487 | |
| 3488 | /* We only discard relocs for symbols defined in a regular object. */ |
| 3489 | if (!h->root.def_regular) |
| 3490 | return TRUE; |
| 3491 | |
| 3492 | for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) |
| 3493 | s->section->size -= s->count * sizeof (Elf64_External_Rela); |
| 3494 | |
| 3495 | return TRUE; |
| 3496 | } |
| 3497 | |
| 3498 | /* Set the sizes of the dynamic sections. */ |
| 3499 | |
| 3500 | static bfd_boolean |
| 3501 | sh64_elf64_size_dynamic_sections (bfd *output_bfd, |
| 3502 | struct bfd_link_info *info) |
| 3503 | { |
| 3504 | bfd *dynobj; |
| 3505 | asection *s; |
| 3506 | bfd_boolean plt; |
| 3507 | bfd_boolean relocs; |
| 3508 | bfd_boolean reltext; |
| 3509 | |
| 3510 | dynobj = elf_hash_table (info)->dynobj; |
| 3511 | BFD_ASSERT (dynobj != NULL); |
| 3512 | |
| 3513 | if (elf_hash_table (info)->dynamic_sections_created) |
| 3514 | { |
| 3515 | /* Set the contents of the .interp section to the interpreter. */ |
| 3516 | if (info->executable) |
| 3517 | { |
| 3518 | s = bfd_get_section_by_name (dynobj, ".interp"); |
| 3519 | BFD_ASSERT (s != NULL); |
| 3520 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 3521 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 3522 | } |
| 3523 | } |
| 3524 | else |
| 3525 | { |
| 3526 | /* We may have created entries in the .rela.got section. |
| 3527 | However, if we are not creating the dynamic sections, we will |
| 3528 | not actually use these entries. Reset the size of .rela.got, |
| 3529 | which will cause it to get stripped from the output file |
| 3530 | below. */ |
| 3531 | s = bfd_get_section_by_name (dynobj, ".rela.got"); |
| 3532 | if (s != NULL) |
| 3533 | s->size = 0; |
| 3534 | } |
| 3535 | |
| 3536 | /* If this is a -Bsymbolic shared link, then we need to discard all |
| 3537 | PC relative relocs against symbols defined in a regular object. |
| 3538 | We allocated space for them in the check_relocs routine, but we |
| 3539 | will not fill them in in the relocate_section routine. */ |
| 3540 | if (info->shared && info->symbolic) |
| 3541 | sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info), |
| 3542 | sh64_elf64_discard_copies, NULL); |
| 3543 | |
| 3544 | /* The check_relocs and adjust_dynamic_symbol entry points have |
| 3545 | determined the sizes of the various dynamic sections. Allocate |
| 3546 | memory for them. */ |
| 3547 | plt = FALSE; |
| 3548 | relocs = FALSE; |
| 3549 | reltext = FALSE; |
| 3550 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 3551 | { |
| 3552 | const char *name; |
| 3553 | |
| 3554 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
| 3555 | continue; |
| 3556 | |
| 3557 | /* It's OK to base decisions on the section name, because none |
| 3558 | of the dynobj section names depend upon the input files. */ |
| 3559 | name = bfd_get_section_name (dynobj, s); |
| 3560 | |
| 3561 | if (strcmp (name, ".plt") == 0) |
| 3562 | { |
| 3563 | /* Remember whether there is a PLT. */ |
| 3564 | plt = s->size != 0; |
| 3565 | } |
| 3566 | else if (CONST_STRNEQ (name, ".rela")) |
| 3567 | { |
| 3568 | if (s->size != 0) |
| 3569 | { |
| 3570 | asection *target; |
| 3571 | |
| 3572 | /* Remember whether there are any reloc sections other |
| 3573 | than .rela.plt. */ |
| 3574 | if (strcmp (name, ".rela.plt") != 0) |
| 3575 | { |
| 3576 | const char *outname; |
| 3577 | |
| 3578 | relocs = TRUE; |
| 3579 | |
| 3580 | /* If this relocation section applies to a read only |
| 3581 | section, then we probably need a DT_TEXTREL |
| 3582 | entry. The entries in the .rela.plt section |
| 3583 | really apply to the .got section, which we |
| 3584 | created ourselves and so know is not readonly. */ |
| 3585 | outname = bfd_get_section_name (output_bfd, |
| 3586 | s->output_section); |
| 3587 | target = bfd_get_section_by_name (output_bfd, outname + 5); |
| 3588 | if (target != NULL |
| 3589 | && (target->flags & SEC_READONLY) != 0 |
| 3590 | && (target->flags & SEC_ALLOC) != 0) |
| 3591 | reltext = TRUE; |
| 3592 | } |
| 3593 | |
| 3594 | /* We use the reloc_count field as a counter if we need |
| 3595 | to copy relocs into the output file. */ |
| 3596 | s->reloc_count = 0; |
| 3597 | } |
| 3598 | } |
| 3599 | else if (! CONST_STRNEQ (name, ".got") |
| 3600 | && strcmp (name, ".dynbss") != 0) |
| 3601 | { |
| 3602 | /* It's not one of our sections, so don't allocate space. */ |
| 3603 | continue; |
| 3604 | } |
| 3605 | |
| 3606 | if (s->size == 0) |
| 3607 | { |
| 3608 | /* If we don't need this section, strip it from the |
| 3609 | output file. This is mostly to handle .rela.bss and |
| 3610 | .rela.plt. We must create both sections in |
| 3611 | create_dynamic_sections, because they must be created |
| 3612 | before the linker maps input sections to output |
| 3613 | sections. The linker does that before |
| 3614 | adjust_dynamic_symbol is called, and it is that |
| 3615 | function which decides whether anything needs to go |
| 3616 | into these sections. */ |
| 3617 | s->flags |= SEC_EXCLUDE; |
| 3618 | continue; |
| 3619 | } |
| 3620 | |
| 3621 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 3622 | continue; |
| 3623 | |
| 3624 | /* Allocate memory for the section contents. */ |
| 3625 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
| 3626 | if (s->contents == NULL) |
| 3627 | return FALSE; |
| 3628 | } |
| 3629 | |
| 3630 | if (elf_hash_table (info)->dynamic_sections_created) |
| 3631 | { |
| 3632 | /* Add some entries to the .dynamic section. We fill in the |
| 3633 | values later, in sh64_elf64_finish_dynamic_sections, but we |
| 3634 | must add the entries now so that we get the correct size for |
| 3635 | the .dynamic section. The DT_DEBUG entry is filled in by the |
| 3636 | dynamic linker and used by the debugger. */ |
| 3637 | if (info->executable) |
| 3638 | { |
| 3639 | if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) |
| 3640 | return FALSE; |
| 3641 | } |
| 3642 | |
| 3643 | if (plt) |
| 3644 | { |
| 3645 | if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) |
| 3646 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) |
| 3647 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) |
| 3648 | || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) |
| 3649 | return FALSE; |
| 3650 | } |
| 3651 | |
| 3652 | if (relocs) |
| 3653 | { |
| 3654 | if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) |
| 3655 | || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) |
| 3656 | || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, |
| 3657 | sizeof (Elf64_External_Rela))) |
| 3658 | return FALSE; |
| 3659 | } |
| 3660 | |
| 3661 | if (reltext) |
| 3662 | { |
| 3663 | if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) |
| 3664 | return FALSE; |
| 3665 | } |
| 3666 | } |
| 3667 | |
| 3668 | return TRUE; |
| 3669 | } |
| 3670 | |
| 3671 | /* Finish up dynamic symbol handling. We set the contents of various |
| 3672 | dynamic sections here. */ |
| 3673 | |
| 3674 | static bfd_boolean |
| 3675 | sh64_elf64_finish_dynamic_symbol (bfd *output_bfd, |
| 3676 | struct bfd_link_info *info, |
| 3677 | struct elf_link_hash_entry *h, |
| 3678 | Elf_Internal_Sym *sym) |
| 3679 | { |
| 3680 | bfd *dynobj; |
| 3681 | |
| 3682 | dynobj = elf_hash_table (info)->dynobj; |
| 3683 | |
| 3684 | if (h->plt.offset != (bfd_vma) -1) |
| 3685 | { |
| 3686 | asection *splt; |
| 3687 | asection *sgot; |
| 3688 | asection *srel; |
| 3689 | |
| 3690 | bfd_vma plt_index; |
| 3691 | bfd_vma got_offset; |
| 3692 | Elf_Internal_Rela rel; |
| 3693 | bfd_byte *loc; |
| 3694 | |
| 3695 | /* This symbol has an entry in the procedure linkage table. Set |
| 3696 | it up. */ |
| 3697 | |
| 3698 | BFD_ASSERT (h->dynindx != -1); |
| 3699 | |
| 3700 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
| 3701 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); |
| 3702 | srel = bfd_get_section_by_name (dynobj, ".rela.plt"); |
| 3703 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
| 3704 | |
| 3705 | /* Get the index in the procedure linkage table which |
| 3706 | corresponds to this symbol. This is the index of this symbol |
| 3707 | in all the symbols for which we are making plt entries. The |
| 3708 | first entry in the procedure linkage table is reserved. */ |
| 3709 | plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1; |
| 3710 | |
| 3711 | /* Get the offset into the .got table of the entry that |
| 3712 | corresponds to this function. Each .got entry is 8 bytes. |
| 3713 | The first three are reserved. */ |
| 3714 | got_offset = (plt_index + 3) * 8; |
| 3715 | |
| 3716 | if (info->shared) |
| 3717 | got_offset -= GOT_BIAS; |
| 3718 | |
| 3719 | /* Fill in the entry in the procedure linkage table. */ |
| 3720 | if (! info->shared) |
| 3721 | { |
| 3722 | if (elf_sh64_plt_entry == NULL) |
| 3723 | { |
| 3724 | elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ? |
| 3725 | elf_sh64_plt_entry_be : elf_sh64_plt_entry_le); |
| 3726 | } |
| 3727 | memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry, |
| 3728 | elf_sh64_sizeof_plt (info)); |
| 3729 | movi_3shori_putval (output_bfd, |
| 3730 | (sgot->output_section->vma |
| 3731 | + sgot->output_offset |
| 3732 | + got_offset), |
| 3733 | (splt->contents + h->plt.offset |
| 3734 | + elf_sh64_plt_symbol_offset (info))); |
| 3735 | |
| 3736 | /* Set bottom bit because its for a branch to SHmedia */ |
| 3737 | movi_shori_putval (output_bfd, |
| 3738 | -(h->plt.offset |
| 3739 | + elf_sh64_plt_plt0_offset (info) + 8) |
| 3740 | | 1, |
| 3741 | (splt->contents + h->plt.offset |
| 3742 | + elf_sh64_plt_plt0_offset (info))); |
| 3743 | } |
| 3744 | else |
| 3745 | { |
| 3746 | if (elf_sh64_pic_plt_entry == NULL) |
| 3747 | { |
| 3748 | elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? |
| 3749 | elf_sh64_pic_plt_entry_be : |
| 3750 | elf_sh64_pic_plt_entry_le); |
| 3751 | } |
| 3752 | memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry, |
| 3753 | elf_sh64_sizeof_plt (info)); |
| 3754 | movi_shori_putval (output_bfd, got_offset, |
| 3755 | (splt->contents + h->plt.offset |
| 3756 | + elf_sh64_plt_symbol_offset (info))); |
| 3757 | } |
| 3758 | |
| 3759 | if (info->shared) |
| 3760 | got_offset += GOT_BIAS; |
| 3761 | |
| 3762 | movi_shori_putval (output_bfd, |
| 3763 | plt_index * sizeof (Elf64_External_Rela), |
| 3764 | (splt->contents + h->plt.offset |
| 3765 | + elf_sh64_plt_reloc_offset (info))); |
| 3766 | |
| 3767 | /* Fill in the entry in the global offset table. */ |
| 3768 | bfd_put_64 (output_bfd, |
| 3769 | (splt->output_section->vma |
| 3770 | + splt->output_offset |
| 3771 | + h->plt.offset |
| 3772 | + elf_sh64_plt_temp_offset (info)), |
| 3773 | sgot->contents + got_offset); |
| 3774 | |
| 3775 | /* Fill in the entry in the .rela.plt section. */ |
| 3776 | rel.r_offset = (sgot->output_section->vma |
| 3777 | + sgot->output_offset |
| 3778 | + got_offset); |
| 3779 | rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64); |
| 3780 | rel.r_addend = 0; |
| 3781 | rel.r_addend = GOT_BIAS; |
| 3782 | loc = srel->contents + plt_index * sizeof (Elf64_External_Rela); |
| 3783 | bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); |
| 3784 | |
| 3785 | if (!h->def_regular) |
| 3786 | { |
| 3787 | /* Mark the symbol as undefined, rather than as defined in |
| 3788 | the .plt section. Leave the value alone. */ |
| 3789 | sym->st_shndx = SHN_UNDEF; |
| 3790 | } |
| 3791 | } |
| 3792 | |
| 3793 | if (h->got.offset != (bfd_vma) -1) |
| 3794 | { |
| 3795 | asection *sgot; |
| 3796 | asection *srel; |
| 3797 | Elf_Internal_Rela rel; |
| 3798 | bfd_byte *loc; |
| 3799 | |
| 3800 | /* This symbol has an entry in the global offset table. Set it |
| 3801 | up. */ |
| 3802 | |
| 3803 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
| 3804 | srel = bfd_get_section_by_name (dynobj, ".rela.got"); |
| 3805 | BFD_ASSERT (sgot != NULL && srel != NULL); |
| 3806 | |
| 3807 | rel.r_offset = (sgot->output_section->vma |
| 3808 | + sgot->output_offset |
| 3809 | + (h->got.offset &~ 1)); |
| 3810 | |
| 3811 | /* If this is a -Bsymbolic link, and the symbol is defined |
| 3812 | locally, we just want to emit a RELATIVE reloc. Likewise if |
| 3813 | the symbol was forced to be local because of a version file. |
| 3814 | The entry in the global offset table will already have been |
| 3815 | initialized in the relocate_section function. */ |
| 3816 | if (info->shared |
| 3817 | && (info->symbolic || h->dynindx == -1) |
| 3818 | && h->def_regular) |
| 3819 | { |
| 3820 | rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); |
| 3821 | rel.r_addend = (h->root.u.def.value |
| 3822 | + h->root.u.def.section->output_section->vma |
| 3823 | + h->root.u.def.section->output_offset); |
| 3824 | } |
| 3825 | else |
| 3826 | { |
| 3827 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
| 3828 | rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64); |
| 3829 | rel.r_addend = 0; |
| 3830 | } |
| 3831 | |
| 3832 | loc = srel->contents; |
| 3833 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); |
| 3834 | bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); |
| 3835 | } |
| 3836 | |
| 3837 | if (h->needs_copy) |
| 3838 | { |
| 3839 | asection *s; |
| 3840 | Elf_Internal_Rela rel; |
| 3841 | bfd_byte *loc; |
| 3842 | |
| 3843 | /* This symbol needs a copy reloc. Set it up. */ |
| 3844 | |
| 3845 | BFD_ASSERT (h->dynindx != -1 |
| 3846 | && (h->root.type == bfd_link_hash_defined |
| 3847 | || h->root.type == bfd_link_hash_defweak)); |
| 3848 | |
| 3849 | s = bfd_get_section_by_name (h->root.u.def.section->owner, |
| 3850 | ".rela.bss"); |
| 3851 | BFD_ASSERT (s != NULL); |
| 3852 | |
| 3853 | rel.r_offset = (h->root.u.def.value |
| 3854 | + h->root.u.def.section->output_section->vma |
| 3855 | + h->root.u.def.section->output_offset); |
| 3856 | rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64); |
| 3857 | rel.r_addend = 0; |
| 3858 | loc = s->contents; |
| 3859 | loc += s->reloc_count++ * sizeof (Elf64_External_Rela); |
| 3860 | bfd_elf64_swap_reloca_out (output_bfd, &rel, loc); |
| 3861 | } |
| 3862 | |
| 3863 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ |
| 3864 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
| 3865 | || h == elf_hash_table (info)->hgot) |
| 3866 | sym->st_shndx = SHN_ABS; |
| 3867 | |
| 3868 | return TRUE; |
| 3869 | } |
| 3870 | |
| 3871 | /* Finish up the dynamic sections. */ |
| 3872 | |
| 3873 | static bfd_boolean |
| 3874 | sh64_elf64_finish_dynamic_sections (bfd *output_bfd, |
| 3875 | struct bfd_link_info *info) |
| 3876 | { |
| 3877 | bfd *dynobj; |
| 3878 | asection *sgot; |
| 3879 | asection *sdyn; |
| 3880 | |
| 3881 | dynobj = elf_hash_table (info)->dynobj; |
| 3882 | |
| 3883 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); |
| 3884 | BFD_ASSERT (sgot != NULL); |
| 3885 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
| 3886 | |
| 3887 | if (elf_hash_table (info)->dynamic_sections_created) |
| 3888 | { |
| 3889 | asection *splt; |
| 3890 | Elf64_External_Dyn *dyncon, *dynconend; |
| 3891 | |
| 3892 | BFD_ASSERT (sdyn != NULL); |
| 3893 | |
| 3894 | dyncon = (Elf64_External_Dyn *) sdyn->contents; |
| 3895 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 3896 | for (; dyncon < dynconend; dyncon++) |
| 3897 | { |
| 3898 | Elf_Internal_Dyn dyn; |
| 3899 | const char *name; |
| 3900 | asection *s; |
| 3901 | struct elf_link_hash_entry *h; |
| 3902 | |
| 3903 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); |
| 3904 | |
| 3905 | switch (dyn.d_tag) |
| 3906 | { |
| 3907 | default: |
| 3908 | break; |
| 3909 | |
| 3910 | case DT_INIT: |
| 3911 | name = info->init_function; |
| 3912 | goto get_sym; |
| 3913 | |
| 3914 | case DT_FINI: |
| 3915 | name = info->fini_function; |
| 3916 | get_sym: |
| 3917 | if (dyn.d_un.d_val != 0) |
| 3918 | { |
| 3919 | h = elf_link_hash_lookup (elf_hash_table (info), name, |
| 3920 | FALSE, FALSE, TRUE); |
| 3921 | if (h != NULL && (h->other & STO_SH5_ISA32)) |
| 3922 | { |
| 3923 | dyn.d_un.d_val |= 1; |
| 3924 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3925 | } |
| 3926 | } |
| 3927 | break; |
| 3928 | |
| 3929 | case DT_PLTGOT: |
| 3930 | name = ".got"; |
| 3931 | goto get_vma; |
| 3932 | |
| 3933 | case DT_JMPREL: |
| 3934 | name = ".rela.plt"; |
| 3935 | get_vma: |
| 3936 | s = bfd_get_section_by_name (output_bfd, name); |
| 3937 | BFD_ASSERT (s != NULL); |
| 3938 | dyn.d_un.d_ptr = s->vma; |
| 3939 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3940 | break; |
| 3941 | |
| 3942 | case DT_PLTRELSZ: |
| 3943 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); |
| 3944 | BFD_ASSERT (s != NULL); |
| 3945 | dyn.d_un.d_val = s->size; |
| 3946 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3947 | break; |
| 3948 | |
| 3949 | case DT_RELASZ: |
| 3950 | /* My reading of the SVR4 ABI indicates that the |
| 3951 | procedure linkage table relocs (DT_JMPREL) should be |
| 3952 | included in the overall relocs (DT_RELA). This is |
| 3953 | what Solaris does. However, UnixWare can not handle |
| 3954 | that case. Therefore, we override the DT_RELASZ entry |
| 3955 | here to make it not include the JMPREL relocs. Since |
| 3956 | the linker script arranges for .rela.plt to follow all |
| 3957 | other relocation sections, we don't have to worry |
| 3958 | about changing the DT_RELA entry. */ |
| 3959 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); |
| 3960 | if (s != NULL) |
| 3961 | dyn.d_un.d_val -= s->size; |
| 3962 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3963 | break; |
| 3964 | } |
| 3965 | } |
| 3966 | |
| 3967 | /* Fill in the first entry in the procedure linkage table. */ |
| 3968 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
| 3969 | if (splt && splt->size > 0) |
| 3970 | { |
| 3971 | if (info->shared) |
| 3972 | { |
| 3973 | if (elf_sh64_pic_plt_entry == NULL) |
| 3974 | { |
| 3975 | elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? |
| 3976 | elf_sh64_pic_plt_entry_be : |
| 3977 | elf_sh64_pic_plt_entry_le); |
| 3978 | } |
| 3979 | memcpy (splt->contents, elf_sh64_pic_plt_entry, |
| 3980 | elf_sh64_sizeof_plt (info)); |
| 3981 | } |
| 3982 | else |
| 3983 | { |
| 3984 | if (elf_sh64_plt0_entry == NULL) |
| 3985 | { |
| 3986 | elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ? |
| 3987 | elf_sh64_plt0_entry_be : |
| 3988 | elf_sh64_plt0_entry_le); |
| 3989 | } |
| 3990 | memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE); |
| 3991 | movi_3shori_putval (output_bfd, |
| 3992 | sgot->output_section->vma |
| 3993 | + sgot->output_offset, |
| 3994 | splt->contents |
| 3995 | + elf_sh64_plt0_gotplt_offset (info)); |
| 3996 | } |
| 3997 | |
| 3998 | /* UnixWare sets the entsize of .plt to 8, although that doesn't |
| 3999 | really seem like the right value. */ |
| 4000 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8; |
| 4001 | } |
| 4002 | } |
| 4003 | |
| 4004 | /* Fill in the first three entries in the global offset table. */ |
| 4005 | if (sgot->size > 0) |
| 4006 | { |
| 4007 | if (sdyn == NULL) |
| 4008 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); |
| 4009 | else |
| 4010 | bfd_put_64 (output_bfd, |
| 4011 | sdyn->output_section->vma + sdyn->output_offset, |
| 4012 | sgot->contents); |
| 4013 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8); |
| 4014 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16); |
| 4015 | } |
| 4016 | |
| 4017 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; |
| 4018 | |
| 4019 | return TRUE; |
| 4020 | } |
| 4021 | |
| 4022 | /* Merge non visibility st_other attribute when the symbol comes from |
| 4023 | a dynamic object. */ |
| 4024 | static void |
| 4025 | sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h, |
| 4026 | const Elf_Internal_Sym *isym, |
| 4027 | bfd_boolean definition, |
| 4028 | bfd_boolean dynamic ATTRIBUTE_UNUSED) |
| 4029 | { |
| 4030 | if ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) != 0) |
| 4031 | { |
| 4032 | unsigned char other; |
| 4033 | |
| 4034 | /* Take the balance of OTHER from the definition. */ |
| 4035 | other = (definition ? isym->st_other : h->other); |
| 4036 | other &= ~ ELF_ST_VISIBILITY (-1); |
| 4037 | h->other = other | ELF_ST_VISIBILITY (h->other); |
| 4038 | } |
| 4039 | |
| 4040 | return; |
| 4041 | } |
| 4042 | |
| 4043 | static const struct bfd_elf_special_section sh64_elf64_special_sections[]= |
| 4044 | { |
| 4045 | { STRING_COMMA_LEN (".cranges"), 0, SHT_PROGBITS, 0 }, |
| 4046 | { NULL, 0, 0, 0, 0 } |
| 4047 | }; |
| 4048 | |
| 4049 | #define TARGET_BIG_SYM bfd_elf64_sh64_vec |
| 4050 | #define TARGET_BIG_NAME "elf64-sh64" |
| 4051 | #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec |
| 4052 | #define TARGET_LITTLE_NAME "elf64-sh64l" |
| 4053 | #define ELF_ARCH bfd_arch_sh |
| 4054 | #define ELF_MACHINE_CODE EM_SH |
| 4055 | #define ELF_MAXPAGESIZE 128 |
| 4056 | |
| 4057 | #define elf_symbol_leading_char '_' |
| 4058 | |
| 4059 | #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup |
| 4060 | #define bfd_elf64_bfd_reloc_name_lookup \ |
| 4061 | sh_elf64_reloc_name_lookup |
| 4062 | #define elf_info_to_howto sh_elf64_info_to_howto |
| 4063 | |
| 4064 | /* Note: there's no relaxation at present. */ |
| 4065 | |
| 4066 | #define elf_backend_relocate_section sh_elf64_relocate_section |
| 4067 | #define bfd_elf64_bfd_get_relocated_section_contents \ |
| 4068 | sh_elf64_get_relocated_section_contents |
| 4069 | #define elf_backend_object_p sh_elf64_set_mach_from_flags |
| 4070 | #define bfd_elf64_bfd_set_private_flags \ |
| 4071 | sh_elf64_set_private_flags |
| 4072 | #define bfd_elf64_bfd_copy_private_bfd_data \ |
| 4073 | sh_elf64_copy_private_data |
| 4074 | #define bfd_elf64_bfd_merge_private_bfd_data \ |
| 4075 | sh_elf64_merge_private_data |
| 4076 | #define elf_backend_fake_sections sh64_elf64_fake_sections |
| 4077 | |
| 4078 | #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook |
| 4079 | #define elf_backend_check_relocs sh_elf64_check_relocs |
| 4080 | |
| 4081 | #define elf_backend_can_gc_sections 1 |
| 4082 | |
| 4083 | #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type |
| 4084 | |
| 4085 | #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook |
| 4086 | |
| 4087 | #define elf_backend_link_output_symbol_hook \ |
| 4088 | sh64_elf64_link_output_symbol_hook |
| 4089 | |
| 4090 | #define elf_backend_merge_symbol_attribute \ |
| 4091 | sh64_elf64_merge_symbol_attribute |
| 4092 | |
| 4093 | #define elf_backend_final_write_processing \ |
| 4094 | sh64_elf64_final_write_processing |
| 4095 | |
| 4096 | #define elf_backend_create_dynamic_sections \ |
| 4097 | sh64_elf64_create_dynamic_sections |
| 4098 | #define bfd_elf64_bfd_link_hash_table_create \ |
| 4099 | sh64_elf64_link_hash_table_create |
| 4100 | #define elf_backend_adjust_dynamic_symbol \ |
| 4101 | sh64_elf64_adjust_dynamic_symbol |
| 4102 | #define elf_backend_size_dynamic_sections \ |
| 4103 | sh64_elf64_size_dynamic_sections |
| 4104 | #define elf_backend_omit_section_dynsym \ |
| 4105 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) |
| 4106 | #define elf_backend_finish_dynamic_symbol \ |
| 4107 | sh64_elf64_finish_dynamic_symbol |
| 4108 | #define elf_backend_finish_dynamic_sections \ |
| 4109 | sh64_elf64_finish_dynamic_sections |
| 4110 | #define elf_backend_special_sections sh64_elf64_special_sections |
| 4111 | |
| 4112 | #define elf_backend_want_got_plt 1 |
| 4113 | #define elf_backend_plt_readonly 1 |
| 4114 | #define elf_backend_want_plt_sym 0 |
| 4115 | #define elf_backend_got_header_size 24 |
| 4116 | |
| 4117 | #include "elf64-target.h" |
| 4118 | |
| 4119 | /* NetBSD support. */ |
| 4120 | #undef TARGET_BIG_SYM |
| 4121 | #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec |
| 4122 | #undef TARGET_BIG_NAME |
| 4123 | #define TARGET_BIG_NAME "elf64-sh64-nbsd" |
| 4124 | #undef TARGET_LITTLE_SYM |
| 4125 | #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec |
| 4126 | #undef TARGET_LITTLE_NAME |
| 4127 | #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd" |
| 4128 | #undef ELF_MAXPAGESIZE |
| 4129 | #define ELF_MAXPAGESIZE 0x10000 |
| 4130 | #undef elf_symbol_leading_char |
| 4131 | #define elf_symbol_leading_char 0 |
| 4132 | |
| 4133 | #define elf64_bed elf64_sh64_nbsd_bed |
| 4134 | |
| 4135 | #include "elf64-target.h" |
| 4136 | |
| 4137 | /* Linux support. */ |
| 4138 | #undef TARGET_BIG_SYM |
| 4139 | #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec |
| 4140 | #undef TARGET_BIG_NAME |
| 4141 | #define TARGET_BIG_NAME "elf64-sh64big-linux" |
| 4142 | #undef TARGET_LITTLE_SYM |
| 4143 | #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec |
| 4144 | #undef TARGET_LITTLE_NAME |
| 4145 | #define TARGET_LITTLE_NAME "elf64-sh64-linux" |
| 4146 | #undef elf64_bed |
| 4147 | #define elf64_bed elf64_sh64_linux_bed |
| 4148 | |
| 4149 | #include "elf64-target.h" |