| 1 | /* TILEPro-specific support for 32-bit ELF. |
| 2 | Copyright (C) 2011-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of BFD, the Binary File Descriptor library. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 19 | MA 02110-1301, USA. */ |
| 20 | |
| 21 | #include "sysdep.h" |
| 22 | #include "bfd.h" |
| 23 | #include "libbfd.h" |
| 24 | #include "elf-bfd.h" |
| 25 | #include "elf/tilepro.h" |
| 26 | #include "opcode/tilepro.h" |
| 27 | #include "libiberty.h" |
| 28 | #include "elf32-tilepro.h" |
| 29 | |
| 30 | #define TILEPRO_BYTES_PER_WORD 4 |
| 31 | |
| 32 | static reloc_howto_type tilepro_elf_howto_table [] = |
| 33 | { |
| 34 | /* This reloc does nothing. */ |
| 35 | HOWTO (R_TILEPRO_NONE, /* type */ |
| 36 | 0, /* rightshift */ |
| 37 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 38 | 0, /* bitsize */ |
| 39 | FALSE, /* pc_relative */ |
| 40 | 0, /* bitpos */ |
| 41 | complain_overflow_dont, /* complain_on_overflow */ |
| 42 | bfd_elf_generic_reloc, /* special_function */ |
| 43 | "R_TILEPRO_NONE", /* name */ |
| 44 | FALSE, /* partial_inplace */ |
| 45 | 0, /* src_mask */ |
| 46 | 0, /* dst_mask */ |
| 47 | FALSE), /* pcrel_offset */ |
| 48 | |
| 49 | /* A 32 bit absolute relocation. */ |
| 50 | HOWTO (R_TILEPRO_32, /* type */ |
| 51 | 0, /* rightshift */ |
| 52 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 53 | 32, /* bitsize */ |
| 54 | FALSE, /* pc_relative */ |
| 55 | 0, /* bitpos */ |
| 56 | complain_overflow_dont, /* complain_on_overflow */ |
| 57 | bfd_elf_generic_reloc, /* special_function */ |
| 58 | "R_TILEPRO_32", /* name */ |
| 59 | FALSE, /* partial_inplace */ |
| 60 | 0, /* src_mask */ |
| 61 | 0xffffffff, /* dst_mask */ |
| 62 | FALSE), /* pcrel_offset */ |
| 63 | |
| 64 | /* A 16 bit absolute relocation. */ |
| 65 | HOWTO (R_TILEPRO_16, /* type */ |
| 66 | 0, /* rightshift */ |
| 67 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 68 | 16, /* bitsize */ |
| 69 | FALSE, /* pc_relative */ |
| 70 | 0, /* bitpos */ |
| 71 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 72 | bfd_elf_generic_reloc, /* special_function */ |
| 73 | "R_TILEPRO_16", /* name */ |
| 74 | FALSE, /* partial_inplace */ |
| 75 | 0, /* src_mask */ |
| 76 | 0xffff, /* dst_mask */ |
| 77 | FALSE), /* pcrel_offset */ |
| 78 | |
| 79 | /* An 8 bit absolute relocation. */ |
| 80 | HOWTO (R_TILEPRO_8, /* type */ |
| 81 | 0, /* rightshift */ |
| 82 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 83 | 8, /* bitsize */ |
| 84 | FALSE, /* pc_relative */ |
| 85 | 0, /* bitpos */ |
| 86 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 87 | bfd_elf_generic_reloc, /* special_function */ |
| 88 | "R_TILEPRO_8", /* name */ |
| 89 | FALSE, /* partial_inplace */ |
| 90 | 0, /* src_mask */ |
| 91 | 0xff, /* dst_mask */ |
| 92 | FALSE), /* pcrel_offset */ |
| 93 | |
| 94 | /* A 32 bit pc-relative relocation. */ |
| 95 | HOWTO (R_TILEPRO_32_PCREL,/* type */ |
| 96 | 0, /* rightshift */ |
| 97 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 98 | 32, /* bitsize */ |
| 99 | TRUE, /* pc_relative */ |
| 100 | 0, /* bitpos */ |
| 101 | complain_overflow_dont, /* complain_on_overflow */ |
| 102 | bfd_elf_generic_reloc, /* special_function */ |
| 103 | "R_TILEPRO_32_PCREL", /* name */ |
| 104 | FALSE, /* partial_inplace */ |
| 105 | 0, /* src_mask */ |
| 106 | 0xffffffff, /* dst_mask */ |
| 107 | TRUE), /* pcrel_offset */ |
| 108 | |
| 109 | /* A 16 bit pc-relative relocation. */ |
| 110 | HOWTO (R_TILEPRO_16_PCREL,/* type */ |
| 111 | 0, /* rightshift */ |
| 112 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 113 | 16, /* bitsize */ |
| 114 | TRUE, /* pc_relative */ |
| 115 | 0, /* bitpos */ |
| 116 | complain_overflow_signed, /* complain_on_overflow */ |
| 117 | bfd_elf_generic_reloc, /* special_function */ |
| 118 | "R_TILEPRO_16_PCREL", /* name */ |
| 119 | FALSE, /* partial_inplace */ |
| 120 | 0, /* src_mask */ |
| 121 | 0xffff, /* dst_mask */ |
| 122 | TRUE), /* pcrel_offset */ |
| 123 | |
| 124 | /* An 8 bit pc-relative relocation. */ |
| 125 | HOWTO (R_TILEPRO_8_PCREL, /* type */ |
| 126 | 0, /* rightshift */ |
| 127 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 128 | 8, /* bitsize */ |
| 129 | TRUE, /* pc_relative */ |
| 130 | 0, /* bitpos */ |
| 131 | complain_overflow_signed, /* complain_on_overflow */ |
| 132 | bfd_elf_generic_reloc, /* special_function */ |
| 133 | "R_TILEPRO_8_PCREL",/* name */ |
| 134 | FALSE, /* partial_inplace */ |
| 135 | 0, /* src_mask */ |
| 136 | 0xff, /* dst_mask */ |
| 137 | TRUE), /* pcrel_offset */ |
| 138 | |
| 139 | /* A 16 bit relocation without overflow. */ |
| 140 | HOWTO (R_TILEPRO_LO16, /* type */ |
| 141 | 0, /* rightshift */ |
| 142 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 143 | 16, /* bitsize */ |
| 144 | FALSE, /* pc_relative */ |
| 145 | 0, /* bitpos */ |
| 146 | complain_overflow_dont,/* complain_on_overflow */ |
| 147 | bfd_elf_generic_reloc, /* special_function */ |
| 148 | "R_TILEPRO_LO16", /* name */ |
| 149 | FALSE, /* partial_inplace */ |
| 150 | 0, /* src_mask */ |
| 151 | 0xffff, /* dst_mask */ |
| 152 | FALSE), /* pcrel_offset */ |
| 153 | |
| 154 | /* The high order 16 bits of an address. */ |
| 155 | HOWTO (R_TILEPRO_HI16, /* type */ |
| 156 | 16, /* rightshift */ |
| 157 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 158 | 16, /* bitsize */ |
| 159 | FALSE, /* pc_relative */ |
| 160 | 0, /* bitpos */ |
| 161 | complain_overflow_dont, /* complain_on_overflow */ |
| 162 | bfd_elf_generic_reloc, /* special_function */ |
| 163 | "R_TILEPRO_HI16", /* name */ |
| 164 | FALSE, /* partial_inplace */ |
| 165 | 0, /* src_mask */ |
| 166 | 0xffff, /* dst_mask */ |
| 167 | FALSE), /* pcrel_offset */ |
| 168 | |
| 169 | /* The high order 16 bits of an address, plus 1 if the contents of |
| 170 | the low 16 bits, treated as a signed number, is negative. */ |
| 171 | HOWTO (R_TILEPRO_HA16, /* type */ |
| 172 | 16, /* rightshift */ |
| 173 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 174 | 16, /* bitsize */ |
| 175 | FALSE, /* pc_relative */ |
| 176 | 0, /* bitpos */ |
| 177 | complain_overflow_dont, /* complain_on_overflow */ |
| 178 | bfd_elf_generic_reloc, /* special_function */ |
| 179 | "R_TILEPRO_HA16", /* name */ |
| 180 | FALSE, /* partial_inplace */ |
| 181 | 0, /* src_mask */ |
| 182 | 0xffff, /* dst_mask */ |
| 183 | FALSE), /* pcrel_offset */ |
| 184 | |
| 185 | HOWTO (R_TILEPRO_COPY, /* type */ |
| 186 | 0, /* rightshift */ |
| 187 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 188 | 0, /* bitsize */ |
| 189 | FALSE, /* pc_relative */ |
| 190 | 0, /* bitpos */ |
| 191 | complain_overflow_dont, /* complain_on_overflow */ |
| 192 | bfd_elf_generic_reloc, /* special_function */ |
| 193 | "R_TILEPRO_COPY", /* name */ |
| 194 | FALSE, /* partial_inplace */ |
| 195 | 0, /* src_mask */ |
| 196 | 0, /* dst_mask */ |
| 197 | TRUE), /* pcrel_offset */ |
| 198 | |
| 199 | HOWTO (R_TILEPRO_GLOB_DAT, /* type */ |
| 200 | 0, /* rightshift */ |
| 201 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 202 | 0, /* bitsize */ |
| 203 | FALSE, /* pc_relative */ |
| 204 | 0, /* bitpos */ |
| 205 | complain_overflow_dont, /* complain_on_overflow */ |
| 206 | bfd_elf_generic_reloc, /* special_function */ |
| 207 | "R_TILEPRO_GLOB_DAT", /* name */ |
| 208 | FALSE, /* partial_inplace */ |
| 209 | 0, /* src_mask */ |
| 210 | 0, /* dst_mask */ |
| 211 | TRUE), /* pcrel_offset */ |
| 212 | |
| 213 | HOWTO (R_TILEPRO_JMP_SLOT, /* type */ |
| 214 | 0, /* rightshift */ |
| 215 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 216 | 0, /* bitsize */ |
| 217 | FALSE, /* pc_relative */ |
| 218 | 0, /* bitpos */ |
| 219 | complain_overflow_dont, /* complain_on_overflow */ |
| 220 | bfd_elf_generic_reloc, /* special_function */ |
| 221 | "R_TILEPRO_JMP_SLOT", /* name */ |
| 222 | FALSE, /* partial_inplace */ |
| 223 | 0, /* src_mask */ |
| 224 | 0, /* dst_mask */ |
| 225 | TRUE), /* pcrel_offset */ |
| 226 | |
| 227 | HOWTO (R_TILEPRO_RELATIVE, /* type */ |
| 228 | 0, /* rightshift */ |
| 229 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 230 | 0, /* bitsize */ |
| 231 | FALSE, /* pc_relative */ |
| 232 | 0, /* bitpos */ |
| 233 | complain_overflow_dont, /* complain_on_overflow */ |
| 234 | bfd_elf_generic_reloc, /* special_function */ |
| 235 | "R_TILEPRO_RELATIVE", /* name */ |
| 236 | FALSE, /* partial_inplace */ |
| 237 | 0, /* src_mask */ |
| 238 | 0, /* dst_mask */ |
| 239 | TRUE), /* pcrel_offset */ |
| 240 | |
| 241 | HOWTO (R_TILEPRO_BROFF_X1, /* type */ |
| 242 | TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ |
| 243 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 244 | 17, /* bitsize */ |
| 245 | TRUE, /* pc_relative */ |
| 246 | 0, /* bitpos */ |
| 247 | complain_overflow_signed, /* complain_on_overflow */ |
| 248 | bfd_elf_generic_reloc, /* special_function */ |
| 249 | "R_TILEPRO_BROFF_X1", /* name */ |
| 250 | FALSE, /* partial_inplace */ |
| 251 | 0, /* src_mask */ |
| 252 | -1, /* dst_mask */ |
| 253 | TRUE), /* pcrel_offset */ |
| 254 | |
| 255 | HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */ |
| 256 | TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ |
| 257 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 258 | 29, /* bitsize */ |
| 259 | TRUE, /* pc_relative */ |
| 260 | 0, /* bitpos */ |
| 261 | complain_overflow_signed,/* complain_on_overflow */ |
| 262 | bfd_elf_generic_reloc, /* special_function */ |
| 263 | "R_TILEPRO_JOFFLONG_X1", /* name */ |
| 264 | FALSE, /* partial_inplace */ |
| 265 | 0, /* src_mask */ |
| 266 | -1, /* dst_mask */ |
| 267 | TRUE), /* pcrel_offset */ |
| 268 | |
| 269 | HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */ |
| 270 | TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ |
| 271 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 272 | 29, /* bitsize */ |
| 273 | TRUE, /* pc_relative */ |
| 274 | 0, /* bitpos */ |
| 275 | complain_overflow_signed,/* complain_on_overflow */ |
| 276 | bfd_elf_generic_reloc, /* special_function */ |
| 277 | "R_TILEPRO_JOFFLONG_X1_PLT", /* name */ |
| 278 | FALSE, /* partial_inplace */ |
| 279 | 0, /* src_mask */ |
| 280 | -1, /* dst_mask */ |
| 281 | TRUE), /* pcrel_offset */ |
| 282 | |
| 283 | #define TILEPRO_IMM_HOWTO(name, size, bitsize) \ |
| 284 | HOWTO (name, 0, size, bitsize, FALSE, 0, \ |
| 285 | complain_overflow_signed, bfd_elf_generic_reloc, \ |
| 286 | #name, FALSE, 0, -1, FALSE) |
| 287 | |
| 288 | #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \ |
| 289 | HOWTO (name, 0, size, bitsize, FALSE, 0, \ |
| 290 | complain_overflow_unsigned, bfd_elf_generic_reloc, \ |
| 291 | #name, FALSE, 0, -1, FALSE) |
| 292 | |
| 293 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8), |
| 294 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8), |
| 295 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8), |
| 296 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8), |
| 297 | TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15), |
| 298 | TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15), |
| 299 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16), |
| 300 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16), |
| 301 | |
| 302 | #define TILEPRO_IMM16_HOWTO(name, rshift) \ |
| 303 | HOWTO (name, rshift, 1, 16, FALSE, 0, \ |
| 304 | complain_overflow_dont, bfd_elf_generic_reloc, \ |
| 305 | #name, FALSE, 0, 0xffff, FALSE) |
| 306 | |
| 307 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0), |
| 308 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0), |
| 309 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16), |
| 310 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16), |
| 311 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16), |
| 312 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16), |
| 313 | |
| 314 | /* PC-relative offsets. */ |
| 315 | |
| 316 | HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */ |
| 317 | 0, /* rightshift */ |
| 318 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 319 | 16, /* bitsize */ |
| 320 | TRUE, /* pc_relative */ |
| 321 | 0, /* bitpos */ |
| 322 | complain_overflow_signed, /* complain_on_overflow */ |
| 323 | bfd_elf_generic_reloc, /* special_function */ |
| 324 | "R_TILEPRO_IMM16_X0_PCREL",/* name */ |
| 325 | FALSE, /* partial_inplace */ |
| 326 | 0, /* src_mask */ |
| 327 | -1, /* dst_mask */ |
| 328 | TRUE), /* pcrel_offset */ |
| 329 | |
| 330 | HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */ |
| 331 | 0, /* rightshift */ |
| 332 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 333 | 16, /* bitsize */ |
| 334 | TRUE, /* pc_relative */ |
| 335 | 0, /* bitpos */ |
| 336 | complain_overflow_signed, /* complain_on_overflow */ |
| 337 | bfd_elf_generic_reloc, /* special_function */ |
| 338 | "R_TILEPRO_IMM16_X1_PCREL",/* name */ |
| 339 | FALSE, /* partial_inplace */ |
| 340 | 0, /* src_mask */ |
| 341 | -1, /* dst_mask */ |
| 342 | TRUE), /* pcrel_offset */ |
| 343 | |
| 344 | #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \ |
| 345 | HOWTO (name, rshift, 1, 16, TRUE, 0, \ |
| 346 | complain_overflow_dont, bfd_elf_generic_reloc, \ |
| 347 | #name, FALSE, 0, 0xffff, TRUE) |
| 348 | |
| 349 | TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0), |
| 350 | TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0), |
| 351 | TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16), |
| 352 | TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16), |
| 353 | TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16), |
| 354 | TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16), |
| 355 | |
| 356 | /* Byte offset into GOT for a particular symbol. */ |
| 357 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16), |
| 358 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16), |
| 359 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0), |
| 360 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0), |
| 361 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16), |
| 362 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16), |
| 363 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16), |
| 364 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16), |
| 365 | |
| 366 | TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5), |
| 367 | TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5), |
| 368 | TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5), |
| 369 | TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5), |
| 370 | |
| 371 | TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5), |
| 372 | TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5), |
| 373 | TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5), |
| 374 | TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5), |
| 375 | |
| 376 | TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8), |
| 377 | |
| 378 | /* These relocs are currently not defined. */ |
| 379 | EMPTY_HOWTO (56), |
| 380 | EMPTY_HOWTO (57), |
| 381 | EMPTY_HOWTO (58), |
| 382 | EMPTY_HOWTO (59), |
| 383 | |
| 384 | HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */ |
| 385 | TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ |
| 386 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 387 | 29, /* bitsize */ |
| 388 | TRUE, /* pc_relative */ |
| 389 | 0, /* bitpos */ |
| 390 | complain_overflow_signed,/* complain_on_overflow */ |
| 391 | bfd_elf_generic_reloc, /* special_function */ |
| 392 | "R_TILEPRO_TLS_GD_CALL", /* name */ |
| 393 | FALSE, /* partial_inplace */ |
| 394 | 0, /* src_mask */ |
| 395 | -1, /* dst_mask */ |
| 396 | TRUE), /* pcrel_offset */ |
| 397 | |
| 398 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8), |
| 399 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8), |
| 400 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8), |
| 401 | TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8), |
| 402 | TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8), |
| 403 | |
| 404 | /* Offsets into the GOT of TLS Descriptors. */ |
| 405 | |
| 406 | HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */ |
| 407 | 0, /* rightshift */ |
| 408 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 409 | 16, /* bitsize */ |
| 410 | FALSE, /* pc_relative */ |
| 411 | 0, /* bitpos */ |
| 412 | complain_overflow_signed, /* complain_on_overflow */ |
| 413 | bfd_elf_generic_reloc, /* special_function */ |
| 414 | "R_TILEPRO_IMM16_X0_TLS_GD",/* name */ |
| 415 | FALSE, /* partial_inplace */ |
| 416 | 0, /* src_mask */ |
| 417 | 0xffff, /* dst_mask */ |
| 418 | FALSE), /* pcrel_offset */ |
| 419 | |
| 420 | HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */ |
| 421 | 0, /* rightshift */ |
| 422 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 423 | 16, /* bitsize */ |
| 424 | FALSE, /* pc_relative */ |
| 425 | 0, /* bitpos */ |
| 426 | complain_overflow_signed, /* complain_on_overflow */ |
| 427 | bfd_elf_generic_reloc, /* special_function */ |
| 428 | "R_TILEPRO_IMM16_X1_TLS_GD",/* name */ |
| 429 | FALSE, /* partial_inplace */ |
| 430 | 0, /* src_mask */ |
| 431 | 0xffff, /* dst_mask */ |
| 432 | FALSE), /* pcrel_offset */ |
| 433 | |
| 434 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0), |
| 435 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0), |
| 436 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16), |
| 437 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16), |
| 438 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16), |
| 439 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16), |
| 440 | |
| 441 | /* Offsets into the GOT of TLS Descriptors. */ |
| 442 | |
| 443 | HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */ |
| 444 | 0, /* rightshift */ |
| 445 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 446 | 16, /* bitsize */ |
| 447 | FALSE, /* pc_relative */ |
| 448 | 0, /* bitpos */ |
| 449 | complain_overflow_signed, /* complain_on_overflow */ |
| 450 | bfd_elf_generic_reloc, /* special_function */ |
| 451 | "R_TILEPRO_IMM16_X0_TLS_IE",/* name */ |
| 452 | FALSE, /* partial_inplace */ |
| 453 | 0, /* src_mask */ |
| 454 | -1, /* dst_mask */ |
| 455 | TRUE), /* pcrel_offset */ |
| 456 | |
| 457 | HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */ |
| 458 | 0, /* rightshift */ |
| 459 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 460 | 16, /* bitsize */ |
| 461 | FALSE, /* pc_relative */ |
| 462 | 0, /* bitpos */ |
| 463 | complain_overflow_signed, /* complain_on_overflow */ |
| 464 | bfd_elf_generic_reloc, /* special_function */ |
| 465 | "R_TILEPRO_IMM16_X1_TLS_IE",/* name */ |
| 466 | FALSE, /* partial_inplace */ |
| 467 | 0, /* src_mask */ |
| 468 | -1, /* dst_mask */ |
| 469 | TRUE), /* pcrel_offset */ |
| 470 | |
| 471 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0), |
| 472 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0), |
| 473 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16), |
| 474 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16), |
| 475 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16), |
| 476 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16), |
| 477 | |
| 478 | /* These are common with the Solaris TLS implementation. */ |
| 479 | HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont, |
| 480 | bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32", |
| 481 | FALSE, 0, 0, TRUE), |
| 482 | HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, |
| 483 | bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32", |
| 484 | FALSE, 0, 0xFFFFFFFF, TRUE), |
| 485 | HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont, |
| 486 | bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32", |
| 487 | FALSE, 0, 0, TRUE), |
| 488 | |
| 489 | HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */ |
| 490 | 0, /* rightshift */ |
| 491 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 492 | 16, /* bitsize */ |
| 493 | FALSE, /* pc_relative */ |
| 494 | 0, /* bitpos */ |
| 495 | complain_overflow_signed, /* complain_on_overflow */ |
| 496 | bfd_elf_generic_reloc, /* special_function */ |
| 497 | "R_TILEPRO_IMM16_X0_TLS_LE",/* name */ |
| 498 | FALSE, /* partial_inplace */ |
| 499 | 0, /* src_mask */ |
| 500 | -1, /* dst_mask */ |
| 501 | TRUE), /* pcrel_offset */ |
| 502 | |
| 503 | HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */ |
| 504 | 0, /* rightshift */ |
| 505 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 506 | 16, /* bitsize */ |
| 507 | FALSE, /* pc_relative */ |
| 508 | 0, /* bitpos */ |
| 509 | complain_overflow_signed, /* complain_on_overflow */ |
| 510 | bfd_elf_generic_reloc, /* special_function */ |
| 511 | "R_TILEPRO_IMM16_X1_TLS_LE",/* name */ |
| 512 | FALSE, /* partial_inplace */ |
| 513 | 0, /* src_mask */ |
| 514 | -1, /* dst_mask */ |
| 515 | TRUE), /* pcrel_offset */ |
| 516 | |
| 517 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0), |
| 518 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0), |
| 519 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16), |
| 520 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16), |
| 521 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16), |
| 522 | TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16), |
| 523 | }; |
| 524 | |
| 525 | static reloc_howto_type tilepro_elf_howto_table2 [] = |
| 526 | { |
| 527 | /* GNU extension to record C++ vtable hierarchy */ |
| 528 | HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */ |
| 529 | 0, /* rightshift */ |
| 530 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 531 | 0, /* bitsize */ |
| 532 | FALSE, /* pc_relative */ |
| 533 | 0, /* bitpos */ |
| 534 | complain_overflow_dont, /* complain_on_overflow */ |
| 535 | NULL, /* special_function */ |
| 536 | "R_TILEPRO_GNU_VTINHERIT", /* name */ |
| 537 | FALSE, /* partial_inplace */ |
| 538 | 0, /* src_mask */ |
| 539 | 0, /* dst_mask */ |
| 540 | FALSE), /* pcrel_offset */ |
| 541 | |
| 542 | /* GNU extension to record C++ vtable member usage */ |
| 543 | HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */ |
| 544 | 0, /* rightshift */ |
| 545 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 546 | 0, /* bitsize */ |
| 547 | FALSE, /* pc_relative */ |
| 548 | 0, /* bitpos */ |
| 549 | complain_overflow_dont, /* complain_on_overflow */ |
| 550 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
| 551 | "R_TILEPRO_GNU_VTENTRY", /* name */ |
| 552 | FALSE, /* partial_inplace */ |
| 553 | 0, /* src_mask */ |
| 554 | 0, /* dst_mask */ |
| 555 | FALSE), /* pcrel_offset */ |
| 556 | |
| 557 | }; |
| 558 | \f |
| 559 | /* Map BFD reloc types to TILEPRO ELF reloc types. */ |
| 560 | |
| 561 | typedef struct tilepro_reloc_map |
| 562 | { |
| 563 | bfd_reloc_code_real_type bfd_reloc_val; |
| 564 | unsigned int tilepro_reloc_val; |
| 565 | reloc_howto_type * table; |
| 566 | } reloc_map; |
| 567 | |
| 568 | static const reloc_map tilepro_reloc_map [] = |
| 569 | { |
| 570 | #define TH_REMAP(bfd, tilepro) \ |
| 571 | { bfd, tilepro, tilepro_elf_howto_table }, |
| 572 | |
| 573 | /* Standard relocations. */ |
| 574 | TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE) |
| 575 | TH_REMAP (BFD_RELOC_32, R_TILEPRO_32) |
| 576 | TH_REMAP (BFD_RELOC_16, R_TILEPRO_16) |
| 577 | TH_REMAP (BFD_RELOC_8, R_TILEPRO_8) |
| 578 | TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL) |
| 579 | TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL) |
| 580 | TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL) |
| 581 | TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16) |
| 582 | TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16) |
| 583 | TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16) |
| 584 | |
| 585 | /* Custom relocations. */ |
| 586 | TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY) |
| 587 | TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT) |
| 588 | TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT) |
| 589 | TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE) |
| 590 | TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1) |
| 591 | TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1) |
| 592 | TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT) |
| 593 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0) |
| 594 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0) |
| 595 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1) |
| 596 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1) |
| 597 | TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1) |
| 598 | TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1) |
| 599 | TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1) |
| 600 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0) |
| 601 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1) |
| 602 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO) |
| 603 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO) |
| 604 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI) |
| 605 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI) |
| 606 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA) |
| 607 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA) |
| 608 | |
| 609 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL) |
| 610 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL) |
| 611 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL) |
| 612 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL) |
| 613 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL) |
| 614 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL) |
| 615 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL) |
| 616 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL) |
| 617 | |
| 618 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT) |
| 619 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT) |
| 620 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO) |
| 621 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO) |
| 622 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI) |
| 623 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI) |
| 624 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA) |
| 625 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA) |
| 626 | |
| 627 | TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0) |
| 628 | TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0) |
| 629 | TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1) |
| 630 | TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1) |
| 631 | TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0) |
| 632 | TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1) |
| 633 | TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0) |
| 634 | TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1) |
| 635 | |
| 636 | TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL) |
| 637 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD) |
| 638 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD) |
| 639 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD) |
| 640 | TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD) |
| 641 | TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD) |
| 642 | |
| 643 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD) |
| 644 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD) |
| 645 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO) |
| 646 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO) |
| 647 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI) |
| 648 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI) |
| 649 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA) |
| 650 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA) |
| 651 | |
| 652 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE) |
| 653 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE) |
| 654 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO) |
| 655 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO) |
| 656 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI) |
| 657 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI) |
| 658 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA) |
| 659 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA) |
| 660 | |
| 661 | TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32) |
| 662 | TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32) |
| 663 | TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32) |
| 664 | |
| 665 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE) |
| 666 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE) |
| 667 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO) |
| 668 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO) |
| 669 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI) |
| 670 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI) |
| 671 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA) |
| 672 | TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA) |
| 673 | |
| 674 | #undef TH_REMAP |
| 675 | |
| 676 | { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 }, |
| 677 | { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 }, |
| 678 | }; |
| 679 | |
| 680 | |
| 681 | |
| 682 | /* TILEPRO ELF linker hash entry. */ |
| 683 | |
| 684 | struct tilepro_elf_link_hash_entry |
| 685 | { |
| 686 | struct elf_link_hash_entry elf; |
| 687 | |
| 688 | /* Track dynamic relocs copied for this symbol. */ |
| 689 | struct elf_dyn_relocs *dyn_relocs; |
| 690 | |
| 691 | #define GOT_UNKNOWN 0 |
| 692 | #define GOT_NORMAL 1 |
| 693 | #define GOT_TLS_GD 2 |
| 694 | #define GOT_TLS_IE 4 |
| 695 | unsigned char tls_type; |
| 696 | }; |
| 697 | |
| 698 | #define tilepro_elf_hash_entry(ent) \ |
| 699 | ((struct tilepro_elf_link_hash_entry *)(ent)) |
| 700 | |
| 701 | struct _bfd_tilepro_elf_obj_tdata |
| 702 | { |
| 703 | struct elf_obj_tdata root; |
| 704 | |
| 705 | /* tls_type for each local got entry. */ |
| 706 | char *local_got_tls_type; |
| 707 | }; |
| 708 | |
| 709 | #define _bfd_tilepro_elf_tdata(abfd) \ |
| 710 | ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any) |
| 711 | |
| 712 | #define _bfd_tilepro_elf_local_got_tls_type(abfd) \ |
| 713 | (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type) |
| 714 | |
| 715 | #define is_tilepro_elf(bfd) \ |
| 716 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ |
| 717 | && elf_tdata (bfd) != NULL \ |
| 718 | && elf_object_id (bfd) == TILEPRO_ELF_DATA) |
| 719 | |
| 720 | /* Allocate TILEPro ELF private object data. */ |
| 721 | |
| 722 | static bfd_boolean |
| 723 | tilepro_elf_mkobject (bfd *abfd) |
| 724 | { |
| 725 | return bfd_elf_allocate_object (abfd, |
| 726 | sizeof (struct _bfd_tilepro_elf_obj_tdata), |
| 727 | TILEPRO_ELF_DATA); |
| 728 | } |
| 729 | |
| 730 | #include "elf/common.h" |
| 731 | #include "elf/internal.h" |
| 732 | |
| 733 | struct tilepro_elf_link_hash_table |
| 734 | { |
| 735 | struct elf_link_hash_table elf; |
| 736 | |
| 737 | /* Small local sym to section mapping cache. */ |
| 738 | struct sym_cache sym_cache; |
| 739 | }; |
| 740 | |
| 741 | /* Get the Tilepro ELF linker hash table from a link_info structure. */ |
| 742 | #define tilepro_elf_hash_table(p) \ |
| 743 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 744 | == TILEPRO_ELF_DATA \ |
| 745 | ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL) |
| 746 | |
| 747 | static reloc_howto_type * |
| 748 | tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, |
| 749 | bfd_reloc_code_real_type code) |
| 750 | { |
| 751 | unsigned int i; |
| 752 | |
| 753 | for (i = ARRAY_SIZE (tilepro_reloc_map); i--;) |
| 754 | { |
| 755 | const reloc_map * entry; |
| 756 | |
| 757 | entry = tilepro_reloc_map + i; |
| 758 | |
| 759 | if (entry->bfd_reloc_val == code) |
| 760 | return entry->table + (entry->tilepro_reloc_val |
| 761 | - entry->table[0].type); |
| 762 | } |
| 763 | |
| 764 | return NULL; |
| 765 | } |
| 766 | |
| 767 | static reloc_howto_type * |
| 768 | tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 769 | const char *r_name) |
| 770 | { |
| 771 | unsigned int i; |
| 772 | |
| 773 | for (i = 0; |
| 774 | i < (sizeof (tilepro_elf_howto_table) |
| 775 | / sizeof (tilepro_elf_howto_table[0])); |
| 776 | i++) |
| 777 | if (tilepro_elf_howto_table[i].name != NULL |
| 778 | && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0) |
| 779 | return &tilepro_elf_howto_table[i]; |
| 780 | |
| 781 | return NULL; |
| 782 | } |
| 783 | |
| 784 | /* Set the howto pointer for an TILEPro ELF reloc. */ |
| 785 | |
| 786 | static bfd_boolean |
| 787 | tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED, |
| 788 | arelent * cache_ptr, |
| 789 | Elf_Internal_Rela * dst) |
| 790 | { |
| 791 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); |
| 792 | |
| 793 | if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA) |
| 794 | cache_ptr->howto = &tilepro_elf_howto_table [r_type]; |
| 795 | else if (r_type - R_TILEPRO_GNU_VTINHERIT |
| 796 | <= ((unsigned int) R_TILEPRO_GNU_VTENTRY |
| 797 | - (unsigned int) R_TILEPRO_GNU_VTINHERIT)) |
| 798 | cache_ptr->howto |
| 799 | = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT]; |
| 800 | else |
| 801 | { |
| 802 | /* xgettext:c-format */ |
| 803 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
| 804 | abfd, r_type); |
| 805 | bfd_set_error (bfd_error_bad_value); |
| 806 | return FALSE; |
| 807 | } |
| 808 | return TRUE; |
| 809 | } |
| 810 | |
| 811 | typedef tilepro_bundle_bits (*tilepro_create_func)(int); |
| 812 | |
| 813 | static const tilepro_create_func reloc_to_create_func[] = |
| 814 | { |
| 815 | /* The first fourteen relocation types don't correspond to operands */ |
| 816 | NULL, |
| 817 | NULL, |
| 818 | NULL, |
| 819 | NULL, |
| 820 | NULL, |
| 821 | NULL, |
| 822 | NULL, |
| 823 | NULL, |
| 824 | NULL, |
| 825 | NULL, |
| 826 | NULL, |
| 827 | NULL, |
| 828 | NULL, |
| 829 | NULL, |
| 830 | |
| 831 | /* The remaining relocations are used for immediate operands */ |
| 832 | create_BrOff_X1, |
| 833 | create_JOffLong_X1, |
| 834 | create_JOffLong_X1, |
| 835 | create_Imm8_X0, |
| 836 | create_Imm8_Y0, |
| 837 | create_Imm8_X1, |
| 838 | create_Imm8_Y1, |
| 839 | create_MT_Imm15_X1, |
| 840 | create_MF_Imm15_X1, |
| 841 | create_Imm16_X0, |
| 842 | create_Imm16_X1, |
| 843 | create_Imm16_X0, |
| 844 | create_Imm16_X1, |
| 845 | create_Imm16_X0, |
| 846 | create_Imm16_X1, |
| 847 | create_Imm16_X0, |
| 848 | create_Imm16_X1, |
| 849 | create_Imm16_X0, |
| 850 | create_Imm16_X1, |
| 851 | create_Imm16_X0, |
| 852 | create_Imm16_X1, |
| 853 | create_Imm16_X0, |
| 854 | create_Imm16_X1, |
| 855 | create_Imm16_X0, |
| 856 | create_Imm16_X1, |
| 857 | create_Imm16_X0, |
| 858 | create_Imm16_X1, |
| 859 | create_Imm16_X0, |
| 860 | create_Imm16_X1, |
| 861 | create_Imm16_X0, |
| 862 | create_Imm16_X1, |
| 863 | create_Imm16_X0, |
| 864 | create_Imm16_X1, |
| 865 | create_MMStart_X0, |
| 866 | create_MMEnd_X0, |
| 867 | create_MMStart_X1, |
| 868 | create_MMEnd_X1, |
| 869 | create_ShAmt_X0, |
| 870 | create_ShAmt_X1, |
| 871 | create_ShAmt_Y0, |
| 872 | create_ShAmt_Y1, |
| 873 | |
| 874 | create_Dest_Imm8_X1, |
| 875 | NULL, |
| 876 | NULL, |
| 877 | NULL, |
| 878 | NULL, |
| 879 | NULL, |
| 880 | NULL, |
| 881 | NULL, |
| 882 | NULL, |
| 883 | NULL, |
| 884 | NULL, |
| 885 | |
| 886 | create_Imm16_X0, |
| 887 | create_Imm16_X1, |
| 888 | create_Imm16_X0, |
| 889 | create_Imm16_X1, |
| 890 | create_Imm16_X0, |
| 891 | create_Imm16_X1, |
| 892 | create_Imm16_X0, |
| 893 | create_Imm16_X1, |
| 894 | create_Imm16_X0, |
| 895 | create_Imm16_X1, |
| 896 | create_Imm16_X0, |
| 897 | create_Imm16_X1, |
| 898 | create_Imm16_X0, |
| 899 | create_Imm16_X1, |
| 900 | create_Imm16_X0, |
| 901 | create_Imm16_X1, |
| 902 | |
| 903 | NULL, |
| 904 | NULL, |
| 905 | NULL, |
| 906 | |
| 907 | create_Imm16_X0, |
| 908 | create_Imm16_X1, |
| 909 | create_Imm16_X0, |
| 910 | create_Imm16_X1, |
| 911 | create_Imm16_X0, |
| 912 | create_Imm16_X1, |
| 913 | create_Imm16_X0, |
| 914 | create_Imm16_X1, |
| 915 | }; |
| 916 | |
| 917 | #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0]))) |
| 918 | |
| 919 | /* Support for core dump NOTE sections. */ |
| 920 | |
| 921 | static bfd_boolean |
| 922 | tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
| 923 | { |
| 924 | int offset; |
| 925 | size_t size; |
| 926 | |
| 927 | if (note->descsz != TILEPRO_PRSTATUS_SIZEOF) |
| 928 | return FALSE; |
| 929 | |
| 930 | /* pr_cursig */ |
| 931 | elf_tdata (abfd)->core->signal = |
| 932 | bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG); |
| 933 | |
| 934 | /* pr_pid */ |
| 935 | elf_tdata (abfd)->core->pid = |
| 936 | bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID); |
| 937 | |
| 938 | /* pr_reg */ |
| 939 | offset = TILEPRO_PRSTATUS_OFFSET_PR_REG; |
| 940 | size = TILEPRO_GREGSET_T_SIZE; |
| 941 | |
| 942 | /* Make a ".reg/999" section. */ |
| 943 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
| 944 | size, note->descpos + offset); |
| 945 | } |
| 946 | |
| 947 | static bfd_boolean |
| 948 | tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
| 949 | { |
| 950 | if (note->descsz != TILEPRO_PRPSINFO_SIZEOF) |
| 951 | return FALSE; |
| 952 | |
| 953 | elf_tdata (abfd)->core->program |
| 954 | = _bfd_elfcore_strndup (abfd, |
| 955 | note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME, |
| 956 | 16); |
| 957 | elf_tdata (abfd)->core->command |
| 958 | = _bfd_elfcore_strndup (abfd, |
| 959 | note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS, |
| 960 | ELF_PR_PSARGS_SIZE); |
| 961 | |
| 962 | |
| 963 | /* Note that for some reason, a spurious space is tacked |
| 964 | onto the end of the args in some (at least one anyway) |
| 965 | implementations, so strip it off if it exists. */ |
| 966 | { |
| 967 | char *command = elf_tdata (abfd)->core->command; |
| 968 | int n = strlen (command); |
| 969 | |
| 970 | if (0 < n && command[n - 1] == ' ') |
| 971 | command[n - 1] = '\0'; |
| 972 | } |
| 973 | |
| 974 | return TRUE; |
| 975 | } |
| 976 | |
| 977 | |
| 978 | static void |
| 979 | tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel) |
| 980 | { |
| 981 | Elf32_External_Rela *loc32; |
| 982 | |
| 983 | loc32 = (Elf32_External_Rela *) s->contents; |
| 984 | loc32 += s->reloc_count++; |
| 985 | bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32); |
| 986 | } |
| 987 | |
| 988 | /* PLT/GOT stuff */ |
| 989 | |
| 990 | /* The procedure linkage table starts with the following header: |
| 991 | |
| 992 | { |
| 993 | rli r29, r29, 16 |
| 994 | lwadd r28, r27, 4 |
| 995 | } |
| 996 | lw r27, r27 |
| 997 | { |
| 998 | info 10 ## SP not offset, return PC in LR |
| 999 | jr r27 |
| 1000 | } |
| 1001 | |
| 1002 | Subsequent entries are the following, jumping to the header at the end: |
| 1003 | |
| 1004 | lnk r28 |
| 1005 | 1: |
| 1006 | { |
| 1007 | auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET> |
| 1008 | auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b> |
| 1009 | } |
| 1010 | { |
| 1011 | addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET> |
| 1012 | addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b> |
| 1013 | } |
| 1014 | { |
| 1015 | auli r29, zero, MY_PLT_INDEX |
| 1016 | lw r28, r28 |
| 1017 | } |
| 1018 | { |
| 1019 | info 10 ## SP not offset, return PC in LR |
| 1020 | jr r28 |
| 1021 | } |
| 1022 | |
| 1023 | We initially store MY_PLT_INDEX in the high bits so that we can use the all |
| 1024 | 16 bits as an unsigned offset; if we use the low bits we would get an |
| 1025 | unwanted sign extension. The PLT header then rotates the index to get the |
| 1026 | right value, before calling the resolution routine. This computation can |
| 1027 | fit in unused bundle slots so it's free. |
| 1028 | |
| 1029 | This code sequence lets the code at at the start of the PLT determine |
| 1030 | which PLT entry was executed by examining 'r29'. |
| 1031 | |
| 1032 | Note that MY_PLT_INDEX skips over the header entries, so the first |
| 1033 | actual jump table entry has index zero. |
| 1034 | */ |
| 1035 | |
| 1036 | #define PLT_HEADER_SIZE_IN_BUNDLES 3 |
| 1037 | #define PLT_ENTRY_SIZE_IN_BUNDLES 5 |
| 1038 | |
| 1039 | #define PLT_HEADER_SIZE \ |
| 1040 | (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES) |
| 1041 | #define PLT_ENTRY_SIZE \ |
| 1042 | (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES) |
| 1043 | |
| 1044 | /* The size in bytes of an entry in the global offset table. */ |
| 1045 | |
| 1046 | #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD |
| 1047 | |
| 1048 | #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE) |
| 1049 | |
| 1050 | |
| 1051 | static const bfd_byte |
| 1052 | tilepro_plt0_entry[PLT_HEADER_SIZE] = |
| 1053 | { |
| 1054 | 0x5d, 0x07, 0x03, 0x70, |
| 1055 | 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */ |
| 1056 | 0x00, 0x50, 0xba, 0x6d, |
| 1057 | 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */ |
| 1058 | 0xff, 0xaf, 0x10, 0x50, |
| 1059 | 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */ |
| 1060 | }; |
| 1061 | |
| 1062 | static const bfd_byte |
| 1063 | tilepro_short_plt_entry[PLT_ENTRY_SIZE] = |
| 1064 | { |
| 1065 | 0x00, 0x50, 0x16, 0x70, |
| 1066 | 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */ |
| 1067 | 0x1c, 0x07, 0x00, 0xa0, |
| 1068 | 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */ |
| 1069 | 0xdd, 0x0f, 0x00, 0x30, |
| 1070 | 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */ |
| 1071 | 0xff, 0xaf, 0x10, 0x50, |
| 1072 | 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */ |
| 1073 | 0x00, 0x00, 0x00, 0x00, |
| 1074 | 0x00, 0x00, 0x00, 0x00, |
| 1075 | }; |
| 1076 | |
| 1077 | static const bfd_byte |
| 1078 | tilepro_long_plt_entry[PLT_ENTRY_SIZE] = |
| 1079 | { |
| 1080 | 0x00, 0x50, 0x16, 0x70, |
| 1081 | 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */ |
| 1082 | 0x1c, 0x07, 0x00, 0xb0, |
| 1083 | 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */ |
| 1084 | 0x1c, 0x07, 0x00, 0xa0, |
| 1085 | 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */ |
| 1086 | 0xdd, 0x0f, 0x00, 0x30, |
| 1087 | 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */ |
| 1088 | 0xff, 0xaf, 0x10, 0x50, |
| 1089 | 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */ |
| 1090 | }; |
| 1091 | |
| 1092 | static bfd_vma |
| 1093 | tilepro_ha16(bfd_vma vma) |
| 1094 | { |
| 1095 | return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff; |
| 1096 | } |
| 1097 | |
| 1098 | static int |
| 1099 | tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset, |
| 1100 | bfd_vma *r_offset) |
| 1101 | { |
| 1102 | int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE; |
| 1103 | int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE; |
| 1104 | tilepro_bundle_bits *pc; |
| 1105 | |
| 1106 | /* Compute the distance from the got entry to the lnk. */ |
| 1107 | bfd_signed_vma dist_got_entry = sgotplt->output_section->vma |
| 1108 | + sgotplt->output_offset |
| 1109 | + got_offset |
| 1110 | - splt->output_section->vma |
| 1111 | - splt->output_offset |
| 1112 | - offset |
| 1113 | - TILEPRO_BUNDLE_SIZE_IN_BYTES; |
| 1114 | |
| 1115 | /* Compute the distance to GOTPLT[0]. */ |
| 1116 | bfd_signed_vma dist_got0 = dist_got_entry - got_offset; |
| 1117 | |
| 1118 | /* Check whether we can use the short plt entry with 16-bit offset. */ |
| 1119 | bfd_boolean short_plt_entry = |
| 1120 | (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000); |
| 1121 | |
| 1122 | /* Copy the plt entry template. */ |
| 1123 | memcpy (splt->contents + offset, |
| 1124 | short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry, |
| 1125 | PLT_ENTRY_SIZE); |
| 1126 | |
| 1127 | /* Write the immediate offsets. */ |
| 1128 | pc = (tilepro_bundle_bits *)(splt->contents + offset); |
| 1129 | pc++; |
| 1130 | |
| 1131 | if (!short_plt_entry) |
| 1132 | { |
| 1133 | /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */ |
| 1134 | *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry)) |
| 1135 | | create_Imm16_X1 (tilepro_ha16 (dist_got0)); |
| 1136 | } |
| 1137 | |
| 1138 | /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or |
| 1139 | { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */ |
| 1140 | *pc++ |= create_Imm16_X0 (dist_got_entry) |
| 1141 | | create_Imm16_X1 (dist_got0); |
| 1142 | |
| 1143 | /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */ |
| 1144 | *pc |= create_Imm16_X0 (plt_index); |
| 1145 | |
| 1146 | /* Set the relocation offset. */ |
| 1147 | *r_offset = got_offset; |
| 1148 | |
| 1149 | return plt_index; |
| 1150 | } |
| 1151 | |
| 1152 | #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela)) |
| 1153 | |
| 1154 | |
| 1155 | /* Create an entry in an TILEPro ELF linker hash table. */ |
| 1156 | |
| 1157 | static struct bfd_hash_entry * |
| 1158 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 1159 | struct bfd_hash_table *table, const char *string) |
| 1160 | { |
| 1161 | /* Allocate the structure if it has not already been allocated by a |
| 1162 | subclass. */ |
| 1163 | if (entry == NULL) |
| 1164 | { |
| 1165 | entry = |
| 1166 | bfd_hash_allocate (table, |
| 1167 | sizeof (struct tilepro_elf_link_hash_entry)); |
| 1168 | if (entry == NULL) |
| 1169 | return entry; |
| 1170 | } |
| 1171 | |
| 1172 | /* Call the allocation method of the superclass. */ |
| 1173 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
| 1174 | if (entry != NULL) |
| 1175 | { |
| 1176 | struct tilepro_elf_link_hash_entry *eh; |
| 1177 | |
| 1178 | eh = (struct tilepro_elf_link_hash_entry *) entry; |
| 1179 | eh->dyn_relocs = NULL; |
| 1180 | eh->tls_type = GOT_UNKNOWN; |
| 1181 | } |
| 1182 | |
| 1183 | return entry; |
| 1184 | } |
| 1185 | |
| 1186 | /* Create a TILEPRO ELF linker hash table. */ |
| 1187 | |
| 1188 | static struct bfd_link_hash_table * |
| 1189 | tilepro_elf_link_hash_table_create (bfd *abfd) |
| 1190 | { |
| 1191 | struct tilepro_elf_link_hash_table *ret; |
| 1192 | size_t amt = sizeof (struct tilepro_elf_link_hash_table); |
| 1193 | |
| 1194 | ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt); |
| 1195 | if (ret == NULL) |
| 1196 | return NULL; |
| 1197 | |
| 1198 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, |
| 1199 | sizeof (struct tilepro_elf_link_hash_entry), |
| 1200 | TILEPRO_ELF_DATA)) |
| 1201 | { |
| 1202 | free (ret); |
| 1203 | return NULL; |
| 1204 | } |
| 1205 | |
| 1206 | return &ret->elf.root; |
| 1207 | } |
| 1208 | |
| 1209 | /* Create the .got section. */ |
| 1210 | |
| 1211 | static bfd_boolean |
| 1212 | tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 1213 | { |
| 1214 | flagword flags; |
| 1215 | asection *s, *s_got; |
| 1216 | struct elf_link_hash_entry *h; |
| 1217 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
| 1218 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| 1219 | |
| 1220 | /* This function may be called more than once. */ |
| 1221 | if (htab->sgot != NULL) |
| 1222 | return TRUE; |
| 1223 | |
| 1224 | flags = bed->dynamic_sec_flags; |
| 1225 | |
| 1226 | s = bfd_make_section_with_flags (abfd, |
| 1227 | (bed->rela_plts_and_copies_p |
| 1228 | ? ".rela.got" : ".rel.got"), |
| 1229 | (bed->dynamic_sec_flags |
| 1230 | | SEC_READONLY)); |
| 1231 | if (s == NULL |
| 1232 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| 1233 | return FALSE; |
| 1234 | htab->srelgot = s; |
| 1235 | |
| 1236 | s = s_got = bfd_make_section_with_flags (abfd, ".got", flags); |
| 1237 | if (s == NULL |
| 1238 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| 1239 | return FALSE; |
| 1240 | htab->sgot = s; |
| 1241 | |
| 1242 | /* The first bit of the global offset table is the header. */ |
| 1243 | s->size += bed->got_header_size; |
| 1244 | |
| 1245 | if (bed->want_got_plt) |
| 1246 | { |
| 1247 | s = bfd_make_section_with_flags (abfd, ".got.plt", flags); |
| 1248 | if (s == NULL |
| 1249 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| 1250 | return FALSE; |
| 1251 | htab->sgotplt = s; |
| 1252 | |
| 1253 | /* Reserve room for the header. */ |
| 1254 | s->size += GOTPLT_HEADER_SIZE; |
| 1255 | } |
| 1256 | |
| 1257 | if (bed->want_got_sym) |
| 1258 | { |
| 1259 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got |
| 1260 | section. We don't do this in the linker script because we don't want |
| 1261 | to define the symbol if we are not creating a global offset |
| 1262 | table. */ |
| 1263 | h = _bfd_elf_define_linkage_sym (abfd, info, s_got, |
| 1264 | "_GLOBAL_OFFSET_TABLE_"); |
| 1265 | elf_hash_table (info)->hgot = h; |
| 1266 | if (h == NULL) |
| 1267 | return FALSE; |
| 1268 | } |
| 1269 | |
| 1270 | return TRUE; |
| 1271 | } |
| 1272 | |
| 1273 | /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and |
| 1274 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our |
| 1275 | hash table. */ |
| 1276 | |
| 1277 | static bfd_boolean |
| 1278 | tilepro_elf_create_dynamic_sections (bfd *dynobj, |
| 1279 | struct bfd_link_info *info) |
| 1280 | { |
| 1281 | if (!tilepro_elf_create_got_section (dynobj, info)) |
| 1282 | return FALSE; |
| 1283 | |
| 1284 | return _bfd_elf_create_dynamic_sections (dynobj, info); |
| 1285 | } |
| 1286 | |
| 1287 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 1288 | |
| 1289 | static void |
| 1290 | tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 1291 | struct elf_link_hash_entry *dir, |
| 1292 | struct elf_link_hash_entry *ind) |
| 1293 | { |
| 1294 | struct tilepro_elf_link_hash_entry *edir, *eind; |
| 1295 | |
| 1296 | edir = (struct tilepro_elf_link_hash_entry *) dir; |
| 1297 | eind = (struct tilepro_elf_link_hash_entry *) ind; |
| 1298 | |
| 1299 | if (eind->dyn_relocs != NULL) |
| 1300 | { |
| 1301 | if (edir->dyn_relocs != NULL) |
| 1302 | { |
| 1303 | struct elf_dyn_relocs **pp; |
| 1304 | struct elf_dyn_relocs *p; |
| 1305 | |
| 1306 | /* Add reloc counts against the indirect sym to the direct sym |
| 1307 | list. Merge any entries against the same section. */ |
| 1308 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) |
| 1309 | { |
| 1310 | struct elf_dyn_relocs *q; |
| 1311 | |
| 1312 | for (q = edir->dyn_relocs; q != NULL; q = q->next) |
| 1313 | if (q->sec == p->sec) |
| 1314 | { |
| 1315 | q->pc_count += p->pc_count; |
| 1316 | q->count += p->count; |
| 1317 | *pp = p->next; |
| 1318 | break; |
| 1319 | } |
| 1320 | if (q == NULL) |
| 1321 | pp = &p->next; |
| 1322 | } |
| 1323 | *pp = edir->dyn_relocs; |
| 1324 | } |
| 1325 | |
| 1326 | edir->dyn_relocs = eind->dyn_relocs; |
| 1327 | eind->dyn_relocs = NULL; |
| 1328 | } |
| 1329 | |
| 1330 | if (ind->root.type == bfd_link_hash_indirect |
| 1331 | && dir->got.refcount <= 0) |
| 1332 | { |
| 1333 | edir->tls_type = eind->tls_type; |
| 1334 | eind->tls_type = GOT_UNKNOWN; |
| 1335 | } |
| 1336 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
| 1337 | } |
| 1338 | |
| 1339 | static int |
| 1340 | tilepro_tls_translate_to_le (int r_type) |
| 1341 | { |
| 1342 | switch (r_type) |
| 1343 | { |
| 1344 | case R_TILEPRO_IMM16_X0_TLS_GD: |
| 1345 | case R_TILEPRO_IMM16_X0_TLS_IE: |
| 1346 | return R_TILEPRO_IMM16_X0_TLS_LE; |
| 1347 | |
| 1348 | case R_TILEPRO_IMM16_X1_TLS_GD: |
| 1349 | case R_TILEPRO_IMM16_X1_TLS_IE: |
| 1350 | return R_TILEPRO_IMM16_X1_TLS_LE; |
| 1351 | |
| 1352 | case R_TILEPRO_IMM16_X0_TLS_GD_LO: |
| 1353 | case R_TILEPRO_IMM16_X0_TLS_IE_LO: |
| 1354 | return R_TILEPRO_IMM16_X0_TLS_LE_LO; |
| 1355 | |
| 1356 | case R_TILEPRO_IMM16_X1_TLS_GD_LO: |
| 1357 | case R_TILEPRO_IMM16_X1_TLS_IE_LO: |
| 1358 | return R_TILEPRO_IMM16_X1_TLS_LE_LO; |
| 1359 | |
| 1360 | case R_TILEPRO_IMM16_X0_TLS_GD_HI: |
| 1361 | case R_TILEPRO_IMM16_X0_TLS_IE_HI: |
| 1362 | return R_TILEPRO_IMM16_X0_TLS_LE_HI; |
| 1363 | |
| 1364 | case R_TILEPRO_IMM16_X1_TLS_GD_HI: |
| 1365 | case R_TILEPRO_IMM16_X1_TLS_IE_HI: |
| 1366 | return R_TILEPRO_IMM16_X1_TLS_LE_HI; |
| 1367 | |
| 1368 | case R_TILEPRO_IMM16_X0_TLS_GD_HA: |
| 1369 | case R_TILEPRO_IMM16_X0_TLS_IE_HA: |
| 1370 | return R_TILEPRO_IMM16_X0_TLS_LE_HA; |
| 1371 | |
| 1372 | case R_TILEPRO_IMM16_X1_TLS_GD_HA: |
| 1373 | case R_TILEPRO_IMM16_X1_TLS_IE_HA: |
| 1374 | return R_TILEPRO_IMM16_X1_TLS_LE_HA; |
| 1375 | } |
| 1376 | return r_type; |
| 1377 | } |
| 1378 | |
| 1379 | static int |
| 1380 | tilepro_tls_translate_to_ie (int r_type) |
| 1381 | { |
| 1382 | switch (r_type) |
| 1383 | { |
| 1384 | case R_TILEPRO_IMM16_X0_TLS_GD: |
| 1385 | case R_TILEPRO_IMM16_X0_TLS_IE: |
| 1386 | return R_TILEPRO_IMM16_X0_TLS_IE; |
| 1387 | |
| 1388 | case R_TILEPRO_IMM16_X1_TLS_GD: |
| 1389 | case R_TILEPRO_IMM16_X1_TLS_IE: |
| 1390 | return R_TILEPRO_IMM16_X1_TLS_IE; |
| 1391 | |
| 1392 | case R_TILEPRO_IMM16_X0_TLS_GD_LO: |
| 1393 | case R_TILEPRO_IMM16_X0_TLS_IE_LO: |
| 1394 | return R_TILEPRO_IMM16_X0_TLS_IE_LO; |
| 1395 | |
| 1396 | case R_TILEPRO_IMM16_X1_TLS_GD_LO: |
| 1397 | case R_TILEPRO_IMM16_X1_TLS_IE_LO: |
| 1398 | return R_TILEPRO_IMM16_X1_TLS_IE_LO; |
| 1399 | |
| 1400 | case R_TILEPRO_IMM16_X0_TLS_GD_HI: |
| 1401 | case R_TILEPRO_IMM16_X0_TLS_IE_HI: |
| 1402 | return R_TILEPRO_IMM16_X0_TLS_IE_HI; |
| 1403 | |
| 1404 | case R_TILEPRO_IMM16_X1_TLS_GD_HI: |
| 1405 | case R_TILEPRO_IMM16_X1_TLS_IE_HI: |
| 1406 | return R_TILEPRO_IMM16_X1_TLS_IE_HI; |
| 1407 | |
| 1408 | case R_TILEPRO_IMM16_X0_TLS_GD_HA: |
| 1409 | case R_TILEPRO_IMM16_X0_TLS_IE_HA: |
| 1410 | return R_TILEPRO_IMM16_X0_TLS_IE_HA; |
| 1411 | |
| 1412 | case R_TILEPRO_IMM16_X1_TLS_GD_HA: |
| 1413 | case R_TILEPRO_IMM16_X1_TLS_IE_HA: |
| 1414 | return R_TILEPRO_IMM16_X1_TLS_IE_HA; |
| 1415 | } |
| 1416 | return r_type; |
| 1417 | } |
| 1418 | |
| 1419 | static int |
| 1420 | tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type, |
| 1421 | int is_local) |
| 1422 | { |
| 1423 | if (!bfd_link_executable (info)) |
| 1424 | return r_type; |
| 1425 | |
| 1426 | if (is_local) |
| 1427 | return tilepro_tls_translate_to_le (r_type); |
| 1428 | else |
| 1429 | return tilepro_tls_translate_to_ie (r_type); |
| 1430 | } |
| 1431 | |
| 1432 | /* Look through the relocs for a section during the first phase, and |
| 1433 | allocate space in the global offset table or procedure linkage |
| 1434 | table. */ |
| 1435 | |
| 1436 | static bfd_boolean |
| 1437 | tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 1438 | asection *sec, const Elf_Internal_Rela *relocs) |
| 1439 | { |
| 1440 | struct tilepro_elf_link_hash_table *htab; |
| 1441 | Elf_Internal_Shdr *symtab_hdr; |
| 1442 | struct elf_link_hash_entry **sym_hashes; |
| 1443 | const Elf_Internal_Rela *rel; |
| 1444 | const Elf_Internal_Rela *rel_end; |
| 1445 | asection *sreloc; |
| 1446 | int num_relocs; |
| 1447 | |
| 1448 | if (bfd_link_relocatable (info)) |
| 1449 | return TRUE; |
| 1450 | |
| 1451 | htab = tilepro_elf_hash_table (info); |
| 1452 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 1453 | sym_hashes = elf_sym_hashes (abfd); |
| 1454 | |
| 1455 | sreloc = NULL; |
| 1456 | |
| 1457 | num_relocs = sec->reloc_count; |
| 1458 | |
| 1459 | BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0); |
| 1460 | |
| 1461 | if (htab->elf.dynobj == NULL) |
| 1462 | htab->elf.dynobj = abfd; |
| 1463 | |
| 1464 | rel_end = relocs + num_relocs; |
| 1465 | for (rel = relocs; rel < rel_end; rel++) |
| 1466 | { |
| 1467 | unsigned int r_type; |
| 1468 | unsigned int r_symndx; |
| 1469 | struct elf_link_hash_entry *h; |
| 1470 | int tls_type; |
| 1471 | |
| 1472 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 1473 | r_type = ELF32_R_TYPE (rel->r_info); |
| 1474 | |
| 1475 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
| 1476 | { |
| 1477 | /* xgettext:c-format */ |
| 1478 | _bfd_error_handler (_("%pB: bad symbol index: %d"), |
| 1479 | abfd, r_symndx); |
| 1480 | return FALSE; |
| 1481 | } |
| 1482 | |
| 1483 | if (r_symndx < symtab_hdr->sh_info) |
| 1484 | h = NULL; |
| 1485 | else |
| 1486 | { |
| 1487 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 1488 | while (h->root.type == bfd_link_hash_indirect |
| 1489 | || h->root.type == bfd_link_hash_warning) |
| 1490 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 1491 | } |
| 1492 | |
| 1493 | r_type = tilepro_elf_tls_transition (info, r_type, h == NULL); |
| 1494 | switch (r_type) |
| 1495 | { |
| 1496 | case R_TILEPRO_IMM16_X0_TLS_LE: |
| 1497 | case R_TILEPRO_IMM16_X1_TLS_LE: |
| 1498 | case R_TILEPRO_IMM16_X0_TLS_LE_LO: |
| 1499 | case R_TILEPRO_IMM16_X1_TLS_LE_LO: |
| 1500 | case R_TILEPRO_IMM16_X0_TLS_LE_HI: |
| 1501 | case R_TILEPRO_IMM16_X1_TLS_LE_HI: |
| 1502 | case R_TILEPRO_IMM16_X0_TLS_LE_HA: |
| 1503 | case R_TILEPRO_IMM16_X1_TLS_LE_HA: |
| 1504 | if (!bfd_link_executable (info)) |
| 1505 | goto r_tilepro_plt32; |
| 1506 | break; |
| 1507 | |
| 1508 | case R_TILEPRO_IMM16_X0_TLS_GD: |
| 1509 | case R_TILEPRO_IMM16_X1_TLS_GD: |
| 1510 | case R_TILEPRO_IMM16_X0_TLS_GD_LO: |
| 1511 | case R_TILEPRO_IMM16_X1_TLS_GD_LO: |
| 1512 | case R_TILEPRO_IMM16_X0_TLS_GD_HI: |
| 1513 | case R_TILEPRO_IMM16_X1_TLS_GD_HI: |
| 1514 | case R_TILEPRO_IMM16_X0_TLS_GD_HA: |
| 1515 | case R_TILEPRO_IMM16_X1_TLS_GD_HA: |
| 1516 | BFD_ASSERT (bfd_link_pic (info)); |
| 1517 | tls_type = GOT_TLS_GD; |
| 1518 | goto have_got_reference; |
| 1519 | |
| 1520 | case R_TILEPRO_IMM16_X0_TLS_IE: |
| 1521 | case R_TILEPRO_IMM16_X1_TLS_IE: |
| 1522 | case R_TILEPRO_IMM16_X0_TLS_IE_LO: |
| 1523 | case R_TILEPRO_IMM16_X1_TLS_IE_LO: |
| 1524 | case R_TILEPRO_IMM16_X0_TLS_IE_HI: |
| 1525 | case R_TILEPRO_IMM16_X1_TLS_IE_HI: |
| 1526 | case R_TILEPRO_IMM16_X0_TLS_IE_HA: |
| 1527 | case R_TILEPRO_IMM16_X1_TLS_IE_HA: |
| 1528 | tls_type = GOT_TLS_IE; |
| 1529 | if (!bfd_link_executable (info)) |
| 1530 | info->flags |= DF_STATIC_TLS; |
| 1531 | goto have_got_reference; |
| 1532 | |
| 1533 | case R_TILEPRO_IMM16_X0_GOT: |
| 1534 | case R_TILEPRO_IMM16_X1_GOT: |
| 1535 | case R_TILEPRO_IMM16_X0_GOT_LO: |
| 1536 | case R_TILEPRO_IMM16_X1_GOT_LO: |
| 1537 | case R_TILEPRO_IMM16_X0_GOT_HI: |
| 1538 | case R_TILEPRO_IMM16_X1_GOT_HI: |
| 1539 | case R_TILEPRO_IMM16_X0_GOT_HA: |
| 1540 | case R_TILEPRO_IMM16_X1_GOT_HA: |
| 1541 | tls_type = GOT_NORMAL; |
| 1542 | /* Fall Through */ |
| 1543 | |
| 1544 | have_got_reference: |
| 1545 | /* This symbol requires a global offset table entry. */ |
| 1546 | { |
| 1547 | int old_tls_type; |
| 1548 | |
| 1549 | if (h != NULL) |
| 1550 | { |
| 1551 | h->got.refcount += 1; |
| 1552 | old_tls_type = tilepro_elf_hash_entry(h)->tls_type; |
| 1553 | } |
| 1554 | else |
| 1555 | { |
| 1556 | bfd_signed_vma *local_got_refcounts; |
| 1557 | |
| 1558 | /* This is a global offset table entry for a local symbol. */ |
| 1559 | local_got_refcounts = elf_local_got_refcounts (abfd); |
| 1560 | if (local_got_refcounts == NULL) |
| 1561 | { |
| 1562 | bfd_size_type size; |
| 1563 | |
| 1564 | size = symtab_hdr->sh_info; |
| 1565 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); |
| 1566 | local_got_refcounts = ((bfd_signed_vma *) |
| 1567 | bfd_zalloc (abfd, size)); |
| 1568 | if (local_got_refcounts == NULL) |
| 1569 | return FALSE; |
| 1570 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
| 1571 | _bfd_tilepro_elf_local_got_tls_type (abfd) |
| 1572 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); |
| 1573 | } |
| 1574 | local_got_refcounts[r_symndx] += 1; |
| 1575 | old_tls_type = |
| 1576 | _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx]; |
| 1577 | } |
| 1578 | |
| 1579 | /* If a TLS symbol is accessed using IE at least once, |
| 1580 | there is no point to use dynamic model for it. */ |
| 1581 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN |
| 1582 | && (old_tls_type != GOT_TLS_GD |
| 1583 | || tls_type != GOT_TLS_IE)) |
| 1584 | { |
| 1585 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) |
| 1586 | tls_type = old_tls_type; |
| 1587 | else |
| 1588 | { |
| 1589 | _bfd_error_handler |
| 1590 | /* xgettext:c-format */ |
| 1591 | (_("%pB: `%s' accessed both as normal and thread local symbol"), |
| 1592 | abfd, h ? h->root.root.string : "<local>"); |
| 1593 | return FALSE; |
| 1594 | } |
| 1595 | } |
| 1596 | |
| 1597 | if (old_tls_type != tls_type) |
| 1598 | { |
| 1599 | if (h != NULL) |
| 1600 | tilepro_elf_hash_entry (h)->tls_type = tls_type; |
| 1601 | else |
| 1602 | _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] = |
| 1603 | tls_type; |
| 1604 | } |
| 1605 | } |
| 1606 | |
| 1607 | if (htab->elf.sgot == NULL) |
| 1608 | { |
| 1609 | if (!tilepro_elf_create_got_section (htab->elf.dynobj, info)) |
| 1610 | return FALSE; |
| 1611 | } |
| 1612 | break; |
| 1613 | |
| 1614 | case R_TILEPRO_TLS_GD_CALL: |
| 1615 | if (!bfd_link_executable (info)) |
| 1616 | { |
| 1617 | /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs |
| 1618 | against __tls_get_addr. */ |
| 1619 | struct bfd_link_hash_entry *bh = NULL; |
| 1620 | if (! _bfd_generic_link_add_one_symbol (info, abfd, |
| 1621 | "__tls_get_addr", 0, |
| 1622 | bfd_und_section_ptr, 0, |
| 1623 | NULL, FALSE, FALSE, |
| 1624 | &bh)) |
| 1625 | return FALSE; |
| 1626 | h = (struct elf_link_hash_entry *) bh; |
| 1627 | } |
| 1628 | else |
| 1629 | break; |
| 1630 | /* Fall through */ |
| 1631 | |
| 1632 | case R_TILEPRO_JOFFLONG_X1_PLT: |
| 1633 | /* This symbol requires a procedure linkage table entry. We |
| 1634 | actually build the entry in adjust_dynamic_symbol, |
| 1635 | because this might be a case of linking PIC code without |
| 1636 | linking in any dynamic objects, in which case we don't |
| 1637 | need to generate a procedure linkage table after all. */ |
| 1638 | |
| 1639 | if (h != NULL) |
| 1640 | { |
| 1641 | h->needs_plt = 1; |
| 1642 | h->plt.refcount += 1; |
| 1643 | } |
| 1644 | break; |
| 1645 | |
| 1646 | case R_TILEPRO_32_PCREL: |
| 1647 | case R_TILEPRO_16_PCREL: |
| 1648 | case R_TILEPRO_8_PCREL: |
| 1649 | case R_TILEPRO_IMM16_X0_PCREL: |
| 1650 | case R_TILEPRO_IMM16_X1_PCREL: |
| 1651 | case R_TILEPRO_IMM16_X0_LO_PCREL: |
| 1652 | case R_TILEPRO_IMM16_X1_LO_PCREL: |
| 1653 | case R_TILEPRO_IMM16_X0_HI_PCREL: |
| 1654 | case R_TILEPRO_IMM16_X1_HI_PCREL: |
| 1655 | case R_TILEPRO_IMM16_X0_HA_PCREL: |
| 1656 | case R_TILEPRO_IMM16_X1_HA_PCREL: |
| 1657 | if (h != NULL) |
| 1658 | h->non_got_ref = 1; |
| 1659 | |
| 1660 | if (h != NULL |
| 1661 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
| 1662 | break; |
| 1663 | /* Fall through. */ |
| 1664 | |
| 1665 | case R_TILEPRO_32: |
| 1666 | case R_TILEPRO_16: |
| 1667 | case R_TILEPRO_8: |
| 1668 | case R_TILEPRO_LO16: |
| 1669 | case R_TILEPRO_HI16: |
| 1670 | case R_TILEPRO_HA16: |
| 1671 | case R_TILEPRO_COPY: |
| 1672 | case R_TILEPRO_GLOB_DAT: |
| 1673 | case R_TILEPRO_JMP_SLOT: |
| 1674 | case R_TILEPRO_RELATIVE: |
| 1675 | case R_TILEPRO_BROFF_X1: |
| 1676 | case R_TILEPRO_JOFFLONG_X1: |
| 1677 | case R_TILEPRO_IMM8_X0: |
| 1678 | case R_TILEPRO_IMM8_Y0: |
| 1679 | case R_TILEPRO_IMM8_X1: |
| 1680 | case R_TILEPRO_IMM8_Y1: |
| 1681 | case R_TILEPRO_DEST_IMM8_X1: |
| 1682 | case R_TILEPRO_MT_IMM15_X1: |
| 1683 | case R_TILEPRO_MF_IMM15_X1: |
| 1684 | case R_TILEPRO_IMM16_X0: |
| 1685 | case R_TILEPRO_IMM16_X1: |
| 1686 | case R_TILEPRO_IMM16_X0_LO: |
| 1687 | case R_TILEPRO_IMM16_X1_LO: |
| 1688 | case R_TILEPRO_IMM16_X0_HI: |
| 1689 | case R_TILEPRO_IMM16_X1_HI: |
| 1690 | case R_TILEPRO_IMM16_X0_HA: |
| 1691 | case R_TILEPRO_IMM16_X1_HA: |
| 1692 | case R_TILEPRO_MMSTART_X0: |
| 1693 | case R_TILEPRO_MMEND_X0: |
| 1694 | case R_TILEPRO_MMSTART_X1: |
| 1695 | case R_TILEPRO_MMEND_X1: |
| 1696 | case R_TILEPRO_SHAMT_X0: |
| 1697 | case R_TILEPRO_SHAMT_X1: |
| 1698 | case R_TILEPRO_SHAMT_Y0: |
| 1699 | case R_TILEPRO_SHAMT_Y1: |
| 1700 | if (h != NULL) |
| 1701 | h->non_got_ref = 1; |
| 1702 | |
| 1703 | r_tilepro_plt32: |
| 1704 | if (h != NULL && !bfd_link_pic (info)) |
| 1705 | { |
| 1706 | /* We may need a .plt entry if the function this reloc |
| 1707 | refers to is in a shared lib. */ |
| 1708 | h->plt.refcount += 1; |
| 1709 | } |
| 1710 | |
| 1711 | /* If we are creating a shared library, and this is a reloc |
| 1712 | against a global symbol, or a non PC relative reloc |
| 1713 | against a local symbol, then we need to copy the reloc |
| 1714 | into the shared library. However, if we are linking with |
| 1715 | -Bsymbolic, we do not need to copy a reloc against a |
| 1716 | global symbol which is defined in an object we are |
| 1717 | including in the link (i.e., DEF_REGULAR is set). At |
| 1718 | this point we have not seen all the input files, so it is |
| 1719 | possible that DEF_REGULAR is not set now but will be set |
| 1720 | later (it is never cleared). In case of a weak definition, |
| 1721 | DEF_REGULAR may be cleared later by a strong definition in |
| 1722 | a shared library. We account for that possibility below by |
| 1723 | storing information in the relocs_copied field of the hash |
| 1724 | table entry. A similar situation occurs when creating |
| 1725 | shared libraries and symbol visibility changes render the |
| 1726 | symbol local. |
| 1727 | |
| 1728 | If on the other hand, we are creating an executable, we |
| 1729 | may need to keep relocations for symbols satisfied by a |
| 1730 | dynamic library if we manage to avoid copy relocs for the |
| 1731 | symbol. */ |
| 1732 | if ((bfd_link_pic (info) |
| 1733 | && (sec->flags & SEC_ALLOC) != 0 |
| 1734 | && (! tilepro_elf_howto_table[r_type].pc_relative |
| 1735 | || (h != NULL |
| 1736 | && (! info->symbolic |
| 1737 | || h->root.type == bfd_link_hash_defweak |
| 1738 | || !h->def_regular)))) |
| 1739 | || (!bfd_link_pic (info) |
| 1740 | && (sec->flags & SEC_ALLOC) != 0 |
| 1741 | && h != NULL |
| 1742 | && (h->root.type == bfd_link_hash_defweak |
| 1743 | || !h->def_regular))) |
| 1744 | { |
| 1745 | struct elf_dyn_relocs *p; |
| 1746 | struct elf_dyn_relocs **head; |
| 1747 | |
| 1748 | /* When creating a shared object, we must copy these |
| 1749 | relocs into the output file. We create a reloc |
| 1750 | section in dynobj and make room for the reloc. */ |
| 1751 | if (sreloc == NULL) |
| 1752 | { |
| 1753 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 1754 | (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); |
| 1755 | |
| 1756 | if (sreloc == NULL) |
| 1757 | return FALSE; |
| 1758 | } |
| 1759 | |
| 1760 | /* If this is a global symbol, we count the number of |
| 1761 | relocations we need for this symbol. */ |
| 1762 | if (h != NULL) |
| 1763 | head = |
| 1764 | &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs; |
| 1765 | else |
| 1766 | { |
| 1767 | /* Track dynamic relocs needed for local syms too. |
| 1768 | We really need local syms available to do this |
| 1769 | easily. Oh well. */ |
| 1770 | |
| 1771 | asection *s; |
| 1772 | void *vpp; |
| 1773 | Elf_Internal_Sym *isym; |
| 1774 | |
| 1775 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 1776 | abfd, r_symndx); |
| 1777 | if (isym == NULL) |
| 1778 | return FALSE; |
| 1779 | |
| 1780 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 1781 | if (s == NULL) |
| 1782 | s = sec; |
| 1783 | |
| 1784 | vpp = &elf_section_data (s)->local_dynrel; |
| 1785 | head = (struct elf_dyn_relocs **) vpp; |
| 1786 | } |
| 1787 | |
| 1788 | p = *head; |
| 1789 | if (p == NULL || p->sec != sec) |
| 1790 | { |
| 1791 | size_t amt = sizeof *p; |
| 1792 | p = ((struct elf_dyn_relocs *) |
| 1793 | bfd_alloc (htab->elf.dynobj, amt)); |
| 1794 | if (p == NULL) |
| 1795 | return FALSE; |
| 1796 | p->next = *head; |
| 1797 | *head = p; |
| 1798 | p->sec = sec; |
| 1799 | p->count = 0; |
| 1800 | p->pc_count = 0; |
| 1801 | } |
| 1802 | |
| 1803 | p->count += 1; |
| 1804 | if (tilepro_elf_howto_table[r_type].pc_relative) |
| 1805 | p->pc_count += 1; |
| 1806 | } |
| 1807 | |
| 1808 | break; |
| 1809 | |
| 1810 | case R_TILEPRO_GNU_VTINHERIT: |
| 1811 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| 1812 | return FALSE; |
| 1813 | break; |
| 1814 | |
| 1815 | case R_TILEPRO_GNU_VTENTRY: |
| 1816 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
| 1817 | return FALSE; |
| 1818 | break; |
| 1819 | |
| 1820 | default: |
| 1821 | break; |
| 1822 | } |
| 1823 | } |
| 1824 | |
| 1825 | return TRUE; |
| 1826 | } |
| 1827 | |
| 1828 | \f |
| 1829 | static asection * |
| 1830 | tilepro_elf_gc_mark_hook (asection *sec, |
| 1831 | struct bfd_link_info *info, |
| 1832 | Elf_Internal_Rela *rel, |
| 1833 | struct elf_link_hash_entry *h, |
| 1834 | Elf_Internal_Sym *sym) |
| 1835 | { |
| 1836 | if (h != NULL) |
| 1837 | { |
| 1838 | switch (ELF32_R_TYPE (rel->r_info)) |
| 1839 | { |
| 1840 | case R_TILEPRO_GNU_VTINHERIT: |
| 1841 | case R_TILEPRO_GNU_VTENTRY: |
| 1842 | return NULL; |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | /* FIXME: The test here, in check_relocs and in relocate_section |
| 1847 | dealing with TLS optimization, ought to be !bfd_link_executable (info). */ |
| 1848 | if (bfd_link_pic (info)) |
| 1849 | { |
| 1850 | struct bfd_link_hash_entry *bh; |
| 1851 | |
| 1852 | switch (ELF32_R_TYPE (rel->r_info)) |
| 1853 | { |
| 1854 | case R_TILEPRO_TLS_GD_CALL: |
| 1855 | /* This reloc implicitly references __tls_get_addr. We know |
| 1856 | another reloc will reference the same symbol as the one |
| 1857 | on this reloc, so the real symbol and section will be |
| 1858 | gc marked when processing the other reloc. That lets |
| 1859 | us handle __tls_get_addr here. */ |
| 1860 | bh = NULL; |
| 1861 | if (! _bfd_generic_link_add_one_symbol (info, sec->owner, |
| 1862 | "__tls_get_addr", 0, |
| 1863 | bfd_und_section_ptr, |
| 1864 | 0, NULL, FALSE, |
| 1865 | FALSE, &bh)) |
| 1866 | return NULL; |
| 1867 | h = (struct elf_link_hash_entry *) bh; |
| 1868 | BFD_ASSERT (h != NULL); |
| 1869 | h->mark = 1; |
| 1870 | if (h->is_weakalias) |
| 1871 | weakdef (h)->mark = 1; |
| 1872 | sym = NULL; |
| 1873 | } |
| 1874 | } |
| 1875 | |
| 1876 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 1877 | } |
| 1878 | |
| 1879 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| 1880 | |
| 1881 | static asection * |
| 1882 | readonly_dynrelocs (struct elf_link_hash_entry *h) |
| 1883 | { |
| 1884 | struct elf_dyn_relocs *p; |
| 1885 | |
| 1886 | for (p = tilepro_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) |
| 1887 | { |
| 1888 | asection *s = p->sec->output_section; |
| 1889 | |
| 1890 | if (s != NULL && (s->flags & SEC_READONLY) != 0) |
| 1891 | return p->sec; |
| 1892 | } |
| 1893 | return NULL; |
| 1894 | } |
| 1895 | |
| 1896 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 1897 | regular object. The current definition is in some section of the |
| 1898 | dynamic object, but we're not including those sections. We have to |
| 1899 | change the definition to something the rest of the link can |
| 1900 | understand. */ |
| 1901 | |
| 1902 | static bfd_boolean |
| 1903 | tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 1904 | struct elf_link_hash_entry *h) |
| 1905 | { |
| 1906 | struct tilepro_elf_link_hash_table *htab; |
| 1907 | asection *s, *srel; |
| 1908 | |
| 1909 | htab = tilepro_elf_hash_table (info); |
| 1910 | BFD_ASSERT (htab != NULL); |
| 1911 | |
| 1912 | /* Make sure we know what is going on here. */ |
| 1913 | BFD_ASSERT (htab->elf.dynobj != NULL |
| 1914 | && (h->needs_plt |
| 1915 | || h->is_weakalias |
| 1916 | || (h->def_dynamic |
| 1917 | && h->ref_regular |
| 1918 | && !h->def_regular))); |
| 1919 | |
| 1920 | /* If this is a function, put it in the procedure linkage table. We |
| 1921 | will fill in the contents of the procedure linkage table later |
| 1922 | (although we could actually do it here). */ |
| 1923 | if (h->type == STT_FUNC || h->needs_plt) |
| 1924 | { |
| 1925 | if (h->plt.refcount <= 0 |
| 1926 | || SYMBOL_CALLS_LOCAL (info, h) |
| 1927 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
| 1928 | && h->root.type == bfd_link_hash_undefweak)) |
| 1929 | { |
| 1930 | /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT |
| 1931 | reloc in an input file, but the symbol was never referred |
| 1932 | to by a dynamic object, or if all references were garbage |
| 1933 | collected. In such a case, we don't actually need to build |
| 1934 | a procedure linkage table, and we can just do a |
| 1935 | R_TILEPRO_JOFFLONG_X1 relocation instead. */ |
| 1936 | h->plt.offset = (bfd_vma) -1; |
| 1937 | h->needs_plt = 0; |
| 1938 | } |
| 1939 | |
| 1940 | return TRUE; |
| 1941 | } |
| 1942 | else |
| 1943 | h->plt.offset = (bfd_vma) -1; |
| 1944 | |
| 1945 | /* If this is a weak symbol, and there is a real definition, the |
| 1946 | processor independent code will have arranged for us to see the |
| 1947 | real definition first, and we can just use the same value. */ |
| 1948 | if (h->is_weakalias) |
| 1949 | { |
| 1950 | struct elf_link_hash_entry *def = weakdef (h); |
| 1951 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); |
| 1952 | h->root.u.def.section = def->root.u.def.section; |
| 1953 | h->root.u.def.value = def->root.u.def.value; |
| 1954 | return TRUE; |
| 1955 | } |
| 1956 | |
| 1957 | /* This is a reference to a symbol defined by a dynamic object which |
| 1958 | is not a function. */ |
| 1959 | |
| 1960 | /* If we are creating a shared library, we must presume that the |
| 1961 | only references to the symbol are via the global offset table. |
| 1962 | For such cases we need not do anything here; the relocations will |
| 1963 | be handled correctly by relocate_section. */ |
| 1964 | if (bfd_link_pic (info)) |
| 1965 | return TRUE; |
| 1966 | |
| 1967 | /* If there are no references to this symbol that do not use the |
| 1968 | GOT, we don't need to generate a copy reloc. */ |
| 1969 | if (!h->non_got_ref) |
| 1970 | return TRUE; |
| 1971 | |
| 1972 | /* If -z nocopyreloc was given, we won't generate them either. */ |
| 1973 | if (info->nocopyreloc) |
| 1974 | { |
| 1975 | h->non_got_ref = 0; |
| 1976 | return TRUE; |
| 1977 | } |
| 1978 | |
| 1979 | /* If we don't find any dynamic relocs in read-only sections, then |
| 1980 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| 1981 | if (!readonly_dynrelocs (h)) |
| 1982 | { |
| 1983 | h->non_got_ref = 0; |
| 1984 | return TRUE; |
| 1985 | } |
| 1986 | |
| 1987 | /* We must allocate the symbol in our .dynbss section, which will |
| 1988 | become part of the .bss section of the executable. There will be |
| 1989 | an entry for this symbol in the .dynsym section. The dynamic |
| 1990 | object will contain position independent code, so all references |
| 1991 | from the dynamic object to this symbol will go through the global |
| 1992 | offset table. The dynamic linker will use the .dynsym entry to |
| 1993 | determine the address it must put in the global offset table, so |
| 1994 | both the dynamic object and the regular object will refer to the |
| 1995 | same memory location for the variable. */ |
| 1996 | |
| 1997 | /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker |
| 1998 | to copy the initial value out of the dynamic object and into the |
| 1999 | runtime process image. We need to remember the offset into the |
| 2000 | .rel.bss section we are going to use. */ |
| 2001 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 2002 | { |
| 2003 | s = htab->elf.sdynrelro; |
| 2004 | srel = htab->elf.sreldynrelro; |
| 2005 | } |
| 2006 | else |
| 2007 | { |
| 2008 | s = htab->elf.sdynbss; |
| 2009 | srel = htab->elf.srelbss; |
| 2010 | } |
| 2011 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 2012 | { |
| 2013 | srel->size += TILEPRO_ELF_RELA_BYTES; |
| 2014 | h->needs_copy = 1; |
| 2015 | } |
| 2016 | |
| 2017 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 2018 | } |
| 2019 | |
| 2020 | /* Allocate space in .plt, .got and associated reloc sections for |
| 2021 | dynamic relocs. */ |
| 2022 | |
| 2023 | static bfd_boolean |
| 2024 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 2025 | { |
| 2026 | struct bfd_link_info *info; |
| 2027 | struct tilepro_elf_link_hash_table *htab; |
| 2028 | struct tilepro_elf_link_hash_entry *eh; |
| 2029 | struct elf_dyn_relocs *p; |
| 2030 | |
| 2031 | if (h->root.type == bfd_link_hash_indirect) |
| 2032 | return TRUE; |
| 2033 | |
| 2034 | info = (struct bfd_link_info *) inf; |
| 2035 | htab = tilepro_elf_hash_table (info); |
| 2036 | BFD_ASSERT (htab != NULL); |
| 2037 | |
| 2038 | if (htab->elf.dynamic_sections_created |
| 2039 | && h->plt.refcount > 0) |
| 2040 | { |
| 2041 | /* Make sure this symbol is output as a dynamic symbol. |
| 2042 | Undefined weak syms won't yet be marked as dynamic. */ |
| 2043 | if (h->dynindx == -1 |
| 2044 | && !h->forced_local) |
| 2045 | { |
| 2046 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2047 | return FALSE; |
| 2048 | } |
| 2049 | |
| 2050 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
| 2051 | { |
| 2052 | asection *s = htab->elf.splt; |
| 2053 | |
| 2054 | /* Allocate room for the header. */ |
| 2055 | if (s->size == 0) |
| 2056 | { |
| 2057 | s->size = PLT_ENTRY_SIZE; |
| 2058 | } |
| 2059 | |
| 2060 | h->plt.offset = s->size; |
| 2061 | |
| 2062 | /* If this symbol is not defined in a regular file, and we are |
| 2063 | not generating a shared library, then set the symbol to this |
| 2064 | location in the .plt. This is required to make function |
| 2065 | pointers compare as equal between the normal executable and |
| 2066 | the shared library. */ |
| 2067 | if (! bfd_link_pic (info) |
| 2068 | && !h->def_regular) |
| 2069 | { |
| 2070 | h->root.u.def.section = s; |
| 2071 | h->root.u.def.value = h->plt.offset; |
| 2072 | } |
| 2073 | |
| 2074 | /* Make room for this entry. */ |
| 2075 | s->size += PLT_ENTRY_SIZE; |
| 2076 | |
| 2077 | /* We also need to make an entry in the .got.plt section. */ |
| 2078 | htab->elf.sgotplt->size += GOT_ENTRY_SIZE; |
| 2079 | |
| 2080 | /* We also need to make an entry in the .rela.plt section. */ |
| 2081 | htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES; |
| 2082 | } |
| 2083 | else |
| 2084 | { |
| 2085 | h->plt.offset = (bfd_vma) -1; |
| 2086 | h->needs_plt = 0; |
| 2087 | } |
| 2088 | } |
| 2089 | else |
| 2090 | { |
| 2091 | h->plt.offset = (bfd_vma) -1; |
| 2092 | h->needs_plt = 0; |
| 2093 | } |
| 2094 | |
| 2095 | /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE |
| 2096 | requiring no TLS entry. */ |
| 2097 | if (h->got.refcount > 0 |
| 2098 | && bfd_link_executable (info) |
| 2099 | && h->dynindx == -1 |
| 2100 | && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE) |
| 2101 | h->got.offset = (bfd_vma) -1; |
| 2102 | else if (h->got.refcount > 0) |
| 2103 | { |
| 2104 | asection *s; |
| 2105 | bfd_boolean dyn; |
| 2106 | int tls_type = tilepro_elf_hash_entry(h)->tls_type; |
| 2107 | |
| 2108 | /* Make sure this symbol is output as a dynamic symbol. |
| 2109 | Undefined weak syms won't yet be marked as dynamic. */ |
| 2110 | if (h->dynindx == -1 |
| 2111 | && !h->forced_local) |
| 2112 | { |
| 2113 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2114 | return FALSE; |
| 2115 | } |
| 2116 | |
| 2117 | s = htab->elf.sgot; |
| 2118 | h->got.offset = s->size; |
| 2119 | s->size += TILEPRO_BYTES_PER_WORD; |
| 2120 | /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */ |
| 2121 | if (tls_type == GOT_TLS_GD) |
| 2122 | s->size += TILEPRO_BYTES_PER_WORD; |
| 2123 | dyn = htab->elf.dynamic_sections_created; |
| 2124 | /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation, |
| 2125 | R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if |
| 2126 | global. */ |
| 2127 | if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE) |
| 2128 | htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES; |
| 2129 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
| 2130 | bfd_link_pic (info), |
| 2131 | h)) |
| 2132 | htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES; |
| 2133 | } |
| 2134 | else |
| 2135 | h->got.offset = (bfd_vma) -1; |
| 2136 | |
| 2137 | eh = (struct tilepro_elf_link_hash_entry *) h; |
| 2138 | if (eh->dyn_relocs == NULL) |
| 2139 | return TRUE; |
| 2140 | |
| 2141 | /* In the shared -Bsymbolic case, discard space allocated for |
| 2142 | dynamic pc-relative relocs against symbols which turn out to be |
| 2143 | defined in regular objects. For the normal shared case, discard |
| 2144 | space for pc-relative relocs that have become local due to symbol |
| 2145 | visibility changes. */ |
| 2146 | |
| 2147 | if (bfd_link_pic (info)) |
| 2148 | { |
| 2149 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 2150 | { |
| 2151 | struct elf_dyn_relocs **pp; |
| 2152 | |
| 2153 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 2154 | { |
| 2155 | p->count -= p->pc_count; |
| 2156 | p->pc_count = 0; |
| 2157 | if (p->count == 0) |
| 2158 | *pp = p->next; |
| 2159 | else |
| 2160 | pp = &p->next; |
| 2161 | } |
| 2162 | } |
| 2163 | |
| 2164 | /* Also discard relocs on undefined weak syms with non-default |
| 2165 | visibility. */ |
| 2166 | if (eh->dyn_relocs != NULL |
| 2167 | && h->root.type == bfd_link_hash_undefweak) |
| 2168 | { |
| 2169 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
| 2170 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 2171 | eh->dyn_relocs = NULL; |
| 2172 | |
| 2173 | /* Make sure undefined weak symbols are output as a dynamic |
| 2174 | symbol in PIEs. */ |
| 2175 | else if (h->dynindx == -1 |
| 2176 | && !h->forced_local) |
| 2177 | { |
| 2178 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2179 | return FALSE; |
| 2180 | } |
| 2181 | } |
| 2182 | } |
| 2183 | else |
| 2184 | { |
| 2185 | /* For the non-shared case, discard space for relocs against |
| 2186 | symbols which turn out to need copy relocs or are not |
| 2187 | dynamic. */ |
| 2188 | |
| 2189 | if (!h->non_got_ref |
| 2190 | && ((h->def_dynamic |
| 2191 | && !h->def_regular) |
| 2192 | || (htab->elf.dynamic_sections_created |
| 2193 | && (h->root.type == bfd_link_hash_undefweak |
| 2194 | || h->root.type == bfd_link_hash_undefined)))) |
| 2195 | { |
| 2196 | /* Make sure this symbol is output as a dynamic symbol. |
| 2197 | Undefined weak syms won't yet be marked as dynamic. */ |
| 2198 | if (h->dynindx == -1 |
| 2199 | && !h->forced_local) |
| 2200 | { |
| 2201 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2202 | return FALSE; |
| 2203 | } |
| 2204 | |
| 2205 | /* If that succeeded, we know we'll be keeping all the |
| 2206 | relocs. */ |
| 2207 | if (h->dynindx != -1) |
| 2208 | goto keep; |
| 2209 | } |
| 2210 | |
| 2211 | eh->dyn_relocs = NULL; |
| 2212 | |
| 2213 | keep: ; |
| 2214 | } |
| 2215 | |
| 2216 | /* Finally, allocate space. */ |
| 2217 | for (p = eh->dyn_relocs; p != NULL; p = p->next) |
| 2218 | { |
| 2219 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
| 2220 | sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES; |
| 2221 | } |
| 2222 | |
| 2223 | return TRUE; |
| 2224 | } |
| 2225 | |
| 2226 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
| 2227 | read-only sections. */ |
| 2228 | |
| 2229 | static bfd_boolean |
| 2230 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
| 2231 | { |
| 2232 | asection *sec; |
| 2233 | |
| 2234 | if (h->root.type == bfd_link_hash_indirect) |
| 2235 | return TRUE; |
| 2236 | |
| 2237 | sec = readonly_dynrelocs (h); |
| 2238 | if (sec != NULL) |
| 2239 | { |
| 2240 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; |
| 2241 | |
| 2242 | info->flags |= DF_TEXTREL; |
| 2243 | info->callbacks->minfo |
| 2244 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
| 2245 | sec->owner, h->root.root.string, sec); |
| 2246 | |
| 2247 | /* Not an error, just cut short the traversal. */ |
| 2248 | return FALSE; |
| 2249 | } |
| 2250 | return TRUE; |
| 2251 | } |
| 2252 | |
| 2253 | /* Return true if the dynamic symbol for a given section should be |
| 2254 | omitted when creating a shared library. */ |
| 2255 | |
| 2256 | static bfd_boolean |
| 2257 | tilepro_elf_omit_section_dynsym (bfd *output_bfd, |
| 2258 | struct bfd_link_info *info, |
| 2259 | asection *p) |
| 2260 | { |
| 2261 | /* We keep the .got section symbol so that explicit relocations |
| 2262 | against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode |
| 2263 | can be turned into relocations against the .got symbol. */ |
| 2264 | if (strcmp (p->name, ".got") == 0) |
| 2265 | return FALSE; |
| 2266 | |
| 2267 | return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p); |
| 2268 | } |
| 2269 | |
| 2270 | /* Set the sizes of the dynamic sections. */ |
| 2271 | |
| 2272 | #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1" |
| 2273 | |
| 2274 | static bfd_boolean |
| 2275 | tilepro_elf_size_dynamic_sections (bfd *output_bfd, |
| 2276 | struct bfd_link_info *info) |
| 2277 | { |
| 2278 | (void)output_bfd; |
| 2279 | |
| 2280 | struct tilepro_elf_link_hash_table *htab; |
| 2281 | bfd *dynobj; |
| 2282 | asection *s; |
| 2283 | bfd *ibfd; |
| 2284 | |
| 2285 | htab = tilepro_elf_hash_table (info); |
| 2286 | BFD_ASSERT (htab != NULL); |
| 2287 | dynobj = htab->elf.dynobj; |
| 2288 | BFD_ASSERT (dynobj != NULL); |
| 2289 | |
| 2290 | if (elf_hash_table (info)->dynamic_sections_created) |
| 2291 | { |
| 2292 | /* Set the contents of the .interp section to the interpreter. */ |
| 2293 | if (bfd_link_executable (info) && !info->nointerp) |
| 2294 | { |
| 2295 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 2296 | BFD_ASSERT (s != NULL); |
| 2297 | s->size = sizeof ELF32_DYNAMIC_INTERPRETER; |
| 2298 | s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER; |
| 2299 | } |
| 2300 | } |
| 2301 | |
| 2302 | /* Set up .got offsets for local syms, and space for local dynamic |
| 2303 | relocs. */ |
| 2304 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 2305 | { |
| 2306 | bfd_signed_vma *local_got; |
| 2307 | bfd_signed_vma *end_local_got; |
| 2308 | char *local_tls_type; |
| 2309 | bfd_size_type locsymcount; |
| 2310 | Elf_Internal_Shdr *symtab_hdr; |
| 2311 | asection *srel; |
| 2312 | |
| 2313 | if (! is_tilepro_elf (ibfd)) |
| 2314 | continue; |
| 2315 | |
| 2316 | for (s = ibfd->sections; s != NULL; s = s->next) |
| 2317 | { |
| 2318 | struct elf_dyn_relocs *p; |
| 2319 | |
| 2320 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 2321 | { |
| 2322 | if (!bfd_is_abs_section (p->sec) |
| 2323 | && bfd_is_abs_section (p->sec->output_section)) |
| 2324 | { |
| 2325 | /* Input section has been discarded, either because |
| 2326 | it is a copy of a linkonce section or due to |
| 2327 | linker script /DISCARD/, so we'll be discarding |
| 2328 | the relocs too. */ |
| 2329 | } |
| 2330 | else if (p->count != 0) |
| 2331 | { |
| 2332 | srel = elf_section_data (p->sec)->sreloc; |
| 2333 | srel->size += p->count * TILEPRO_ELF_RELA_BYTES; |
| 2334 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 2335 | { |
| 2336 | info->flags |= DF_TEXTREL; |
| 2337 | |
| 2338 | info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"), |
| 2339 | p->sec->owner, p->sec); |
| 2340 | } |
| 2341 | } |
| 2342 | } |
| 2343 | } |
| 2344 | |
| 2345 | local_got = elf_local_got_refcounts (ibfd); |
| 2346 | if (!local_got) |
| 2347 | continue; |
| 2348 | |
| 2349 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 2350 | locsymcount = symtab_hdr->sh_info; |
| 2351 | end_local_got = local_got + locsymcount; |
| 2352 | local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd); |
| 2353 | s = htab->elf.sgot; |
| 2354 | srel = htab->elf.srelgot; |
| 2355 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
| 2356 | { |
| 2357 | if (*local_got > 0) |
| 2358 | { |
| 2359 | *local_got = s->size; |
| 2360 | s->size += TILEPRO_BYTES_PER_WORD; |
| 2361 | if (*local_tls_type == GOT_TLS_GD) |
| 2362 | s->size += TILEPRO_BYTES_PER_WORD; |
| 2363 | if (bfd_link_pic (info) |
| 2364 | || *local_tls_type == GOT_TLS_GD |
| 2365 | || *local_tls_type == GOT_TLS_IE) |
| 2366 | srel->size += TILEPRO_ELF_RELA_BYTES; |
| 2367 | } |
| 2368 | else |
| 2369 | *local_got = (bfd_vma) -1; |
| 2370 | } |
| 2371 | } |
| 2372 | |
| 2373 | /* Allocate global sym .plt and .got entries, and space for global |
| 2374 | sym dynamic relocs. */ |
| 2375 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| 2376 | |
| 2377 | if (elf_hash_table (info)->dynamic_sections_created) |
| 2378 | { |
| 2379 | /* If the .got section is more than 0x8000 bytes, we add |
| 2380 | 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16 |
| 2381 | bit relocations have a greater chance of working. */ |
| 2382 | if (htab->elf.sgot->size >= 0x8000 |
| 2383 | && elf_hash_table (info)->hgot->root.u.def.value == 0) |
| 2384 | elf_hash_table (info)->hgot->root.u.def.value = 0x8000; |
| 2385 | } |
| 2386 | |
| 2387 | if (htab->elf.sgotplt) |
| 2388 | { |
| 2389 | struct elf_link_hash_entry *got; |
| 2390 | got = elf_link_hash_lookup (elf_hash_table (info), |
| 2391 | "_GLOBAL_OFFSET_TABLE_", |
| 2392 | FALSE, FALSE, FALSE); |
| 2393 | |
| 2394 | /* Don't allocate .got.plt section if there are no GOT nor PLT |
| 2395 | entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */ |
| 2396 | if ((got == NULL |
| 2397 | || !got->ref_regular_nonweak) |
| 2398 | && (htab->elf.sgotplt->size |
| 2399 | == GOTPLT_HEADER_SIZE) |
| 2400 | && (htab->elf.splt == NULL |
| 2401 | || htab->elf.splt->size == 0) |
| 2402 | && (htab->elf.sgot == NULL |
| 2403 | || (htab->elf.sgot->size |
| 2404 | == get_elf_backend_data (output_bfd)->got_header_size))) |
| 2405 | htab->elf.sgotplt->size = 0; |
| 2406 | } |
| 2407 | |
| 2408 | /* The check_relocs and adjust_dynamic_symbol entry points have |
| 2409 | determined the sizes of the various dynamic sections. Allocate |
| 2410 | memory for them. */ |
| 2411 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 2412 | { |
| 2413 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
| 2414 | continue; |
| 2415 | |
| 2416 | if (s == htab->elf.splt |
| 2417 | || s == htab->elf.sgot |
| 2418 | || s == htab->elf.sgotplt |
| 2419 | || s == htab->elf.sdynbss |
| 2420 | || s == htab->elf.sdynrelro) |
| 2421 | { |
| 2422 | /* Strip this section if we don't need it; see the |
| 2423 | comment below. */ |
| 2424 | } |
| 2425 | else if (strncmp (s->name, ".rela", 5) == 0) |
| 2426 | { |
| 2427 | if (s->size != 0) |
| 2428 | { |
| 2429 | /* We use the reloc_count field as a counter if we need |
| 2430 | to copy relocs into the output file. */ |
| 2431 | s->reloc_count = 0; |
| 2432 | } |
| 2433 | } |
| 2434 | else |
| 2435 | { |
| 2436 | /* It's not one of our sections. */ |
| 2437 | continue; |
| 2438 | } |
| 2439 | |
| 2440 | if (s->size == 0) |
| 2441 | { |
| 2442 | /* If we don't need this section, strip it from the |
| 2443 | output file. This is mostly to handle .rela.bss and |
| 2444 | .rela.plt. We must create both sections in |
| 2445 | create_dynamic_sections, because they must be created |
| 2446 | before the linker maps input sections to output |
| 2447 | sections. The linker does that before |
| 2448 | adjust_dynamic_symbol is called, and it is that |
| 2449 | function which decides whether anything needs to go |
| 2450 | into these sections. */ |
| 2451 | s->flags |= SEC_EXCLUDE; |
| 2452 | continue; |
| 2453 | } |
| 2454 | |
| 2455 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 2456 | continue; |
| 2457 | |
| 2458 | /* Allocate memory for the section contents. Zero the memory |
| 2459 | for the benefit of .rela.plt, which has 4 unused entries |
| 2460 | at the beginning, and we don't want garbage. */ |
| 2461 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
| 2462 | if (s->contents == NULL) |
| 2463 | return FALSE; |
| 2464 | } |
| 2465 | |
| 2466 | if (elf_hash_table (info)->dynamic_sections_created) |
| 2467 | { |
| 2468 | /* Add some entries to the .dynamic section. We fill in the |
| 2469 | values later, in tilepro_elf_finish_dynamic_sections, but we |
| 2470 | must add the entries now so that we get the correct size for |
| 2471 | the .dynamic section. The DT_DEBUG entry is filled in by the |
| 2472 | dynamic linker and used by the debugger. */ |
| 2473 | #define add_dynamic_entry(TAG, VAL) \ |
| 2474 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| 2475 | |
| 2476 | if (bfd_link_executable (info)) |
| 2477 | { |
| 2478 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| 2479 | return FALSE; |
| 2480 | } |
| 2481 | |
| 2482 | if (htab->elf.srelplt->size != 0) |
| 2483 | { |
| 2484 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 2485 | || !add_dynamic_entry (DT_PLTRELSZ, 0) |
| 2486 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) |
| 2487 | || !add_dynamic_entry (DT_JMPREL, 0)) |
| 2488 | return FALSE; |
| 2489 | } |
| 2490 | |
| 2491 | if (!add_dynamic_entry (DT_RELA, 0) |
| 2492 | || !add_dynamic_entry (DT_RELASZ, 0) |
| 2493 | || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES)) |
| 2494 | return FALSE; |
| 2495 | |
| 2496 | /* If any dynamic relocs apply to a read-only section, |
| 2497 | then we need a DT_TEXTREL entry. */ |
| 2498 | if ((info->flags & DF_TEXTREL) == 0) |
| 2499 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 2500 | |
| 2501 | if (info->flags & DF_TEXTREL) |
| 2502 | { |
| 2503 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| 2504 | return FALSE; |
| 2505 | } |
| 2506 | } |
| 2507 | #undef add_dynamic_entry |
| 2508 | |
| 2509 | return TRUE; |
| 2510 | } |
| 2511 | \f |
| 2512 | /* Return the base VMA address which should be subtracted from real addresses |
| 2513 | when resolving @dtpoff relocation. |
| 2514 | This is PT_TLS segment p_vaddr. */ |
| 2515 | |
| 2516 | static bfd_vma |
| 2517 | dtpoff_base (struct bfd_link_info *info) |
| 2518 | { |
| 2519 | /* If tls_sec is NULL, we should have signalled an error already. */ |
| 2520 | if (elf_hash_table (info)->tls_sec == NULL) |
| 2521 | return 0; |
| 2522 | return elf_hash_table (info)->tls_sec->vma; |
| 2523 | } |
| 2524 | |
| 2525 | /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */ |
| 2526 | |
| 2527 | static bfd_vma |
| 2528 | tpoff (struct bfd_link_info *info, bfd_vma address) |
| 2529 | { |
| 2530 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| 2531 | |
| 2532 | /* If tls_sec is NULL, we should have signalled an error already. */ |
| 2533 | if (htab->tls_sec == NULL) |
| 2534 | return 0; |
| 2535 | |
| 2536 | return (address - htab->tls_sec->vma); |
| 2537 | } |
| 2538 | |
| 2539 | /* Replace the MASK bits in ADDR with those in INSN, for the next |
| 2540 | TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */ |
| 2541 | |
| 2542 | static void |
| 2543 | tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask, |
| 2544 | const bfd_byte *insn) |
| 2545 | { |
| 2546 | int i; |
| 2547 | for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++) |
| 2548 | { |
| 2549 | addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]); |
| 2550 | } |
| 2551 | } |
| 2552 | |
| 2553 | /* Mask to extract the bits corresponding to an instruction in a |
| 2554 | specific pipe of a bundle. */ |
| 2555 | static const bfd_byte insn_mask_X1[] = { |
| 2556 | 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f |
| 2557 | }; |
| 2558 | |
| 2559 | /* Mask to extract the bits corresponding to an instruction in a |
| 2560 | specific pipe of a bundle, minus the destination operand and the |
| 2561 | first source operand. */ |
| 2562 | static const bfd_byte insn_mask_X0_no_dest_no_srca[] = { |
| 2563 | 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00 |
| 2564 | }; |
| 2565 | |
| 2566 | static const bfd_byte insn_mask_X1_no_dest_no_srca[] = { |
| 2567 | 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f |
| 2568 | }; |
| 2569 | |
| 2570 | static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = { |
| 2571 | 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00 |
| 2572 | }; |
| 2573 | |
| 2574 | static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = { |
| 2575 | 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78 |
| 2576 | }; |
| 2577 | |
| 2578 | /* Mask to extract the first source operand of an instruction. */ |
| 2579 | static const bfd_byte srca_mask_X0[] = { |
| 2580 | 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 2581 | }; |
| 2582 | |
| 2583 | static const bfd_byte srca_mask_X1[] = { |
| 2584 | 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00 |
| 2585 | }; |
| 2586 | |
| 2587 | /* Various instructions synthesized to support tls references. */ |
| 2588 | |
| 2589 | /* move r0, r0 in the X1 pipe, used for tls le. */ |
| 2590 | static const bfd_byte insn_tls_le_move_X1[] = { |
| 2591 | 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08 |
| 2592 | }; |
| 2593 | |
| 2594 | /* move r0, zero in the X0 and X1 pipe, used for tls le. */ |
| 2595 | static const bfd_byte insn_tls_le_move_zero_X0X1[] = { |
| 2596 | 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08 |
| 2597 | }; |
| 2598 | |
| 2599 | /* lw r0, r0 in the X1 pipe, used for tls ie. */ |
| 2600 | static const bfd_byte insn_tls_ie_lw_X1[] = { |
| 2601 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40 |
| 2602 | }; |
| 2603 | |
| 2604 | /* add r0, r0, tp in various pipes, used for tls ie. */ |
| 2605 | static const bfd_byte insn_tls_ie_add_X0X1[] = { |
| 2606 | 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08 |
| 2607 | }; |
| 2608 | static const bfd_byte insn_tls_ie_add_Y0Y1[] = { |
| 2609 | 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c |
| 2610 | }; |
| 2611 | |
| 2612 | /* move r0, r0 in various pipes, used for tls gd. */ |
| 2613 | static const bfd_byte insn_tls_gd_add_X0X1[] = { |
| 2614 | 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08 |
| 2615 | }; |
| 2616 | static const bfd_byte insn_tls_gd_add_Y0Y1[] = { |
| 2617 | 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c |
| 2618 | }; |
| 2619 | |
| 2620 | /* Relocate an TILEPRO ELF section. |
| 2621 | |
| 2622 | The RELOCATE_SECTION function is called by the new ELF backend linker |
| 2623 | to handle the relocations for a section. |
| 2624 | |
| 2625 | The relocs are always passed as Rela structures. |
| 2626 | |
| 2627 | This function is responsible for adjusting the section contents as |
| 2628 | necessary, and (if generating a relocatable output file) adjusting |
| 2629 | the reloc addend as necessary. |
| 2630 | |
| 2631 | This function does not have to worry about setting the reloc |
| 2632 | address or the reloc symbol index. |
| 2633 | |
| 2634 | LOCAL_SYMS is a pointer to the swapped in local symbols. |
| 2635 | |
| 2636 | LOCAL_SECTIONS is an array giving the section in the input file |
| 2637 | corresponding to the st_shndx field of each local symbol. |
| 2638 | |
| 2639 | The global hash table entry for the global symbols can be found |
| 2640 | via elf_sym_hashes (input_bfd). |
| 2641 | |
| 2642 | When generating relocatable output, this function must handle |
| 2643 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 2644 | going to be the section symbol corresponding to the output |
| 2645 | section, which means that the addend must be adjusted |
| 2646 | accordingly. */ |
| 2647 | |
| 2648 | static bfd_boolean |
| 2649 | tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, |
| 2650 | bfd *input_bfd, asection *input_section, |
| 2651 | bfd_byte *contents, Elf_Internal_Rela *relocs, |
| 2652 | Elf_Internal_Sym *local_syms, |
| 2653 | asection **local_sections) |
| 2654 | { |
| 2655 | struct tilepro_elf_link_hash_table *htab; |
| 2656 | Elf_Internal_Shdr *symtab_hdr; |
| 2657 | struct elf_link_hash_entry **sym_hashes; |
| 2658 | bfd_vma *local_got_offsets; |
| 2659 | bfd_vma got_base; |
| 2660 | asection *sreloc; |
| 2661 | Elf_Internal_Rela *rel; |
| 2662 | Elf_Internal_Rela *relend; |
| 2663 | int num_relocs; |
| 2664 | |
| 2665 | htab = tilepro_elf_hash_table (info); |
| 2666 | BFD_ASSERT (htab != NULL); |
| 2667 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 2668 | sym_hashes = elf_sym_hashes (input_bfd); |
| 2669 | local_got_offsets = elf_local_got_offsets (input_bfd); |
| 2670 | |
| 2671 | if (elf_hash_table (info)->hgot == NULL) |
| 2672 | got_base = 0; |
| 2673 | else |
| 2674 | got_base = elf_hash_table (info)->hgot->root.u.def.value; |
| 2675 | |
| 2676 | sreloc = elf_section_data (input_section)->sreloc; |
| 2677 | |
| 2678 | rel = relocs; |
| 2679 | num_relocs = input_section->reloc_count; |
| 2680 | relend = relocs + num_relocs; |
| 2681 | for (; rel < relend; rel++) |
| 2682 | { |
| 2683 | int r_type, tls_type; |
| 2684 | bfd_boolean is_tls_iele, is_tls_le; |
| 2685 | reloc_howto_type *howto; |
| 2686 | unsigned long r_symndx; |
| 2687 | struct elf_link_hash_entry *h; |
| 2688 | Elf_Internal_Sym *sym; |
| 2689 | tilepro_create_func create_func; |
| 2690 | asection *sec; |
| 2691 | bfd_vma relocation; |
| 2692 | bfd_reloc_status_type r; |
| 2693 | const char *name; |
| 2694 | bfd_vma off; |
| 2695 | bfd_boolean is_plt = FALSE; |
| 2696 | bfd_boolean resolved_to_zero; |
| 2697 | bfd_boolean unresolved_reloc; |
| 2698 | |
| 2699 | r_type = ELF32_R_TYPE (rel->r_info); |
| 2700 | if (r_type == R_TILEPRO_GNU_VTINHERIT |
| 2701 | || r_type == R_TILEPRO_GNU_VTENTRY) |
| 2702 | continue; |
| 2703 | |
| 2704 | if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table)) |
| 2705 | return _bfd_unrecognized_reloc (input_bfd, input_section, r_type); |
| 2706 | |
| 2707 | howto = tilepro_elf_howto_table + r_type; |
| 2708 | |
| 2709 | /* This is a final link. */ |
| 2710 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 2711 | h = NULL; |
| 2712 | sym = NULL; |
| 2713 | sec = NULL; |
| 2714 | unresolved_reloc = FALSE; |
| 2715 | if (r_symndx < symtab_hdr->sh_info) |
| 2716 | { |
| 2717 | sym = local_syms + r_symndx; |
| 2718 | sec = local_sections[r_symndx]; |
| 2719 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 2720 | } |
| 2721 | else |
| 2722 | { |
| 2723 | bfd_boolean warned ATTRIBUTE_UNUSED; |
| 2724 | bfd_boolean ignored ATTRIBUTE_UNUSED; |
| 2725 | |
| 2726 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 2727 | r_symndx, symtab_hdr, sym_hashes, |
| 2728 | h, sec, relocation, |
| 2729 | unresolved_reloc, warned, ignored); |
| 2730 | if (warned) |
| 2731 | { |
| 2732 | /* To avoid generating warning messages about truncated |
| 2733 | relocations, set the relocation's address to be the same as |
| 2734 | the start of this section. */ |
| 2735 | if (input_section->output_section != NULL) |
| 2736 | relocation = input_section->output_section->vma; |
| 2737 | else |
| 2738 | relocation = 0; |
| 2739 | } |
| 2740 | } |
| 2741 | |
| 2742 | if (sec != NULL && discarded_section (sec)) |
| 2743 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
| 2744 | rel, 1, relend, howto, 0, contents); |
| 2745 | |
| 2746 | if (bfd_link_relocatable (info)) |
| 2747 | continue; |
| 2748 | |
| 2749 | if (h != NULL) |
| 2750 | name = h->root.root.string; |
| 2751 | else |
| 2752 | { |
| 2753 | name = (bfd_elf_string_from_elf_section |
| 2754 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); |
| 2755 | if (name == NULL || *name == '\0') |
| 2756 | name = bfd_section_name (sec); |
| 2757 | } |
| 2758 | |
| 2759 | switch (r_type) |
| 2760 | { |
| 2761 | case R_TILEPRO_TLS_GD_CALL: |
| 2762 | case R_TILEPRO_IMM8_X0_TLS_GD_ADD: |
| 2763 | case R_TILEPRO_IMM8_Y0_TLS_GD_ADD: |
| 2764 | case R_TILEPRO_IMM8_X1_TLS_GD_ADD: |
| 2765 | case R_TILEPRO_IMM8_Y1_TLS_GD_ADD: |
| 2766 | case R_TILEPRO_IMM16_X0_TLS_GD_HA: |
| 2767 | case R_TILEPRO_IMM16_X1_TLS_GD_HA: |
| 2768 | case R_TILEPRO_IMM16_X0_TLS_IE_HA: |
| 2769 | case R_TILEPRO_IMM16_X1_TLS_IE_HA: |
| 2770 | tls_type = GOT_UNKNOWN; |
| 2771 | if (h == NULL && local_got_offsets) |
| 2772 | tls_type = |
| 2773 | _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx]; |
| 2774 | else if (h != NULL) |
| 2775 | tls_type = tilepro_elf_hash_entry(h)->tls_type; |
| 2776 | |
| 2777 | is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE); |
| 2778 | is_tls_le = is_tls_iele && (bfd_link_executable (info) |
| 2779 | && (h == NULL || h->dynindx == -1)); |
| 2780 | |
| 2781 | if (r_type == R_TILEPRO_TLS_GD_CALL) |
| 2782 | { |
| 2783 | if (is_tls_le) |
| 2784 | { |
| 2785 | /* GD -> LE */ |
| 2786 | tilepro_replace_insn (contents + rel->r_offset, |
| 2787 | insn_mask_X1, insn_tls_le_move_X1); |
| 2788 | continue; |
| 2789 | } |
| 2790 | else if (is_tls_iele) |
| 2791 | { |
| 2792 | /* GD -> IE */ |
| 2793 | tilepro_replace_insn (contents + rel->r_offset, |
| 2794 | insn_mask_X1, insn_tls_ie_lw_X1); |
| 2795 | continue; |
| 2796 | } |
| 2797 | |
| 2798 | /* GD -> GD */ |
| 2799 | h = (struct elf_link_hash_entry *) |
| 2800 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, |
| 2801 | FALSE, TRUE); |
| 2802 | BFD_ASSERT (h != NULL); |
| 2803 | r_type = R_TILEPRO_JOFFLONG_X1_PLT; |
| 2804 | howto = tilepro_elf_howto_table + r_type; |
| 2805 | } |
| 2806 | else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA |
| 2807 | || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA) |
| 2808 | { |
| 2809 | if (is_tls_le) |
| 2810 | tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0, |
| 2811 | insn_tls_le_move_zero_X0X1); |
| 2812 | } |
| 2813 | else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA |
| 2814 | || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA) |
| 2815 | { |
| 2816 | if (is_tls_le) |
| 2817 | tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1, |
| 2818 | insn_tls_le_move_zero_X0X1); |
| 2819 | } |
| 2820 | else |
| 2821 | { |
| 2822 | const bfd_byte *mask = NULL; |
| 2823 | const bfd_byte *add_insn = NULL; |
| 2824 | |
| 2825 | switch (r_type) |
| 2826 | { |
| 2827 | case R_TILEPRO_IMM8_X0_TLS_GD_ADD: |
| 2828 | add_insn = is_tls_iele ? insn_tls_ie_add_X0X1 |
| 2829 | : insn_tls_gd_add_X0X1; |
| 2830 | mask = insn_mask_X0_no_dest_no_srca; |
| 2831 | break; |
| 2832 | case R_TILEPRO_IMM8_X1_TLS_GD_ADD: |
| 2833 | add_insn = is_tls_iele ? insn_tls_ie_add_X0X1 |
| 2834 | : insn_tls_gd_add_X0X1; |
| 2835 | mask = insn_mask_X1_no_dest_no_srca; |
| 2836 | break; |
| 2837 | case R_TILEPRO_IMM8_Y0_TLS_GD_ADD: |
| 2838 | add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1 |
| 2839 | : insn_tls_gd_add_Y0Y1; |
| 2840 | mask = insn_mask_Y0_no_dest_no_srca; |
| 2841 | break; |
| 2842 | case R_TILEPRO_IMM8_Y1_TLS_GD_ADD: |
| 2843 | add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1 |
| 2844 | : insn_tls_gd_add_Y0Y1; |
| 2845 | mask = insn_mask_Y1_no_dest_no_srca; |
| 2846 | break; |
| 2847 | } |
| 2848 | |
| 2849 | tilepro_replace_insn (contents + rel->r_offset, mask, add_insn); |
| 2850 | |
| 2851 | continue; |
| 2852 | } |
| 2853 | break; |
| 2854 | case R_TILEPRO_TLS_IE_LOAD: |
| 2855 | if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1)) |
| 2856 | /* IE -> LE */ |
| 2857 | tilepro_replace_insn (contents + rel->r_offset, |
| 2858 | insn_mask_X1_no_dest_no_srca, |
| 2859 | insn_tls_le_move_X1); |
| 2860 | else |
| 2861 | /* IE -> IE */ |
| 2862 | tilepro_replace_insn (contents + rel->r_offset, |
| 2863 | insn_mask_X1_no_dest_no_srca, |
| 2864 | insn_tls_ie_lw_X1); |
| 2865 | continue; |
| 2866 | break; |
| 2867 | default: |
| 2868 | break; |
| 2869 | } |
| 2870 | |
| 2871 | resolved_to_zero = (h != NULL |
| 2872 | && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); |
| 2873 | |
| 2874 | switch (r_type) |
| 2875 | { |
| 2876 | case R_TILEPRO_IMM16_X0_GOT: |
| 2877 | case R_TILEPRO_IMM16_X1_GOT: |
| 2878 | case R_TILEPRO_IMM16_X0_GOT_LO: |
| 2879 | case R_TILEPRO_IMM16_X1_GOT_LO: |
| 2880 | case R_TILEPRO_IMM16_X0_GOT_HI: |
| 2881 | case R_TILEPRO_IMM16_X1_GOT_HI: |
| 2882 | case R_TILEPRO_IMM16_X0_GOT_HA: |
| 2883 | case R_TILEPRO_IMM16_X1_GOT_HA: |
| 2884 | /* Relocation is to the entry for this symbol in the global |
| 2885 | offset table. */ |
| 2886 | if (htab->elf.sgot == NULL) |
| 2887 | abort (); |
| 2888 | |
| 2889 | if (h != NULL) |
| 2890 | { |
| 2891 | bfd_boolean dyn; |
| 2892 | |
| 2893 | off = h->got.offset; |
| 2894 | BFD_ASSERT (off != (bfd_vma) -1); |
| 2895 | dyn = elf_hash_table (info)->dynamic_sections_created; |
| 2896 | |
| 2897 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
| 2898 | bfd_link_pic (info), |
| 2899 | h) |
| 2900 | || (bfd_link_pic (info) |
| 2901 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
| 2902 | { |
| 2903 | /* This is actually a static link, or it is a |
| 2904 | -Bsymbolic link and the symbol is defined |
| 2905 | locally, or the symbol was forced to be local |
| 2906 | because of a version file. We must initialize |
| 2907 | this entry in the global offset table. Since the |
| 2908 | offset must always be a multiple |
| 2909 | of 4 for 32-bit, we use the least significant bit |
| 2910 | to record whether we have initialized it already. |
| 2911 | |
| 2912 | When doing a dynamic link, we create a .rela.got |
| 2913 | relocation entry to initialize the value. This |
| 2914 | is done in the finish_dynamic_symbol routine. */ |
| 2915 | if ((off & 1) != 0) |
| 2916 | off &= ~1; |
| 2917 | else |
| 2918 | { |
| 2919 | bfd_put_32 (output_bfd, relocation, |
| 2920 | htab->elf.sgot->contents + off); |
| 2921 | h->got.offset |= 1; |
| 2922 | } |
| 2923 | } |
| 2924 | else |
| 2925 | unresolved_reloc = FALSE; |
| 2926 | } |
| 2927 | else |
| 2928 | { |
| 2929 | BFD_ASSERT (local_got_offsets != NULL |
| 2930 | && local_got_offsets[r_symndx] != (bfd_vma) -1); |
| 2931 | |
| 2932 | off = local_got_offsets[r_symndx]; |
| 2933 | |
| 2934 | /* The offset must always be a multiple of 4 on 32-bit. |
| 2935 | We use the least significant bit to record |
| 2936 | whether we have already processed this entry. */ |
| 2937 | if ((off & 1) != 0) |
| 2938 | off &= ~1; |
| 2939 | else |
| 2940 | { |
| 2941 | if (bfd_link_pic (info)) |
| 2942 | { |
| 2943 | asection *s; |
| 2944 | Elf_Internal_Rela outrel; |
| 2945 | |
| 2946 | /* We need to generate a R_TILEPRO_RELATIVE reloc |
| 2947 | for the dynamic linker. */ |
| 2948 | s = htab->elf.srelgot; |
| 2949 | BFD_ASSERT (s != NULL); |
| 2950 | |
| 2951 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
| 2952 | + htab->elf.sgot->output_offset |
| 2953 | + off); |
| 2954 | outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE); |
| 2955 | outrel.r_addend = relocation; |
| 2956 | relocation = 0; |
| 2957 | tilepro_elf_append_rela_32 (output_bfd, s, &outrel); |
| 2958 | } |
| 2959 | |
| 2960 | bfd_put_32 (output_bfd, relocation, |
| 2961 | htab->elf.sgot->contents + off); |
| 2962 | local_got_offsets[r_symndx] |= 1; |
| 2963 | } |
| 2964 | } |
| 2965 | relocation = off - got_base; |
| 2966 | break; |
| 2967 | |
| 2968 | case R_TILEPRO_JOFFLONG_X1_PLT: |
| 2969 | /* Relocation is to the entry for this symbol in the |
| 2970 | procedure linkage table. */ |
| 2971 | BFD_ASSERT (h != NULL); |
| 2972 | |
| 2973 | if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL) |
| 2974 | { |
| 2975 | /* We didn't make a PLT entry for this symbol. This |
| 2976 | happens when statically linking PIC code, or when |
| 2977 | using -Bsymbolic. */ |
| 2978 | break; |
| 2979 | } |
| 2980 | |
| 2981 | relocation = (htab->elf.splt->output_section->vma |
| 2982 | + htab->elf.splt->output_offset |
| 2983 | + h->plt.offset); |
| 2984 | unresolved_reloc = FALSE; |
| 2985 | break; |
| 2986 | |
| 2987 | case R_TILEPRO_32_PCREL: |
| 2988 | case R_TILEPRO_16_PCREL: |
| 2989 | case R_TILEPRO_8_PCREL: |
| 2990 | case R_TILEPRO_IMM16_X0_PCREL: |
| 2991 | case R_TILEPRO_IMM16_X1_PCREL: |
| 2992 | case R_TILEPRO_IMM16_X0_LO_PCREL: |
| 2993 | case R_TILEPRO_IMM16_X1_LO_PCREL: |
| 2994 | case R_TILEPRO_IMM16_X0_HI_PCREL: |
| 2995 | case R_TILEPRO_IMM16_X1_HI_PCREL: |
| 2996 | case R_TILEPRO_IMM16_X0_HA_PCREL: |
| 2997 | case R_TILEPRO_IMM16_X1_HA_PCREL: |
| 2998 | if (h != NULL |
| 2999 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
| 3000 | break; |
| 3001 | /* Fall through. */ |
| 3002 | case R_TILEPRO_32: |
| 3003 | case R_TILEPRO_16: |
| 3004 | case R_TILEPRO_8: |
| 3005 | case R_TILEPRO_LO16: |
| 3006 | case R_TILEPRO_HI16: |
| 3007 | case R_TILEPRO_HA16: |
| 3008 | case R_TILEPRO_COPY: |
| 3009 | case R_TILEPRO_GLOB_DAT: |
| 3010 | case R_TILEPRO_JMP_SLOT: |
| 3011 | case R_TILEPRO_RELATIVE: |
| 3012 | case R_TILEPRO_BROFF_X1: |
| 3013 | case R_TILEPRO_JOFFLONG_X1: |
| 3014 | case R_TILEPRO_IMM8_X0: |
| 3015 | case R_TILEPRO_IMM8_Y0: |
| 3016 | case R_TILEPRO_IMM8_X1: |
| 3017 | case R_TILEPRO_IMM8_Y1: |
| 3018 | case R_TILEPRO_DEST_IMM8_X1: |
| 3019 | case R_TILEPRO_MT_IMM15_X1: |
| 3020 | case R_TILEPRO_MF_IMM15_X1: |
| 3021 | case R_TILEPRO_IMM16_X0: |
| 3022 | case R_TILEPRO_IMM16_X1: |
| 3023 | case R_TILEPRO_IMM16_X0_LO: |
| 3024 | case R_TILEPRO_IMM16_X1_LO: |
| 3025 | case R_TILEPRO_IMM16_X0_HI: |
| 3026 | case R_TILEPRO_IMM16_X1_HI: |
| 3027 | case R_TILEPRO_IMM16_X0_HA: |
| 3028 | case R_TILEPRO_IMM16_X1_HA: |
| 3029 | case R_TILEPRO_MMSTART_X0: |
| 3030 | case R_TILEPRO_MMEND_X0: |
| 3031 | case R_TILEPRO_MMSTART_X1: |
| 3032 | case R_TILEPRO_MMEND_X1: |
| 3033 | case R_TILEPRO_SHAMT_X0: |
| 3034 | case R_TILEPRO_SHAMT_X1: |
| 3035 | case R_TILEPRO_SHAMT_Y0: |
| 3036 | case R_TILEPRO_SHAMT_Y1: |
| 3037 | if ((input_section->flags & SEC_ALLOC) == 0) |
| 3038 | break; |
| 3039 | |
| 3040 | if ((bfd_link_pic (info) |
| 3041 | && (h == NULL |
| 3042 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
| 3043 | && !resolved_to_zero) |
| 3044 | || h->root.type != bfd_link_hash_undefweak) |
| 3045 | && (! howto->pc_relative |
| 3046 | || !SYMBOL_CALLS_LOCAL (info, h))) |
| 3047 | || (!bfd_link_pic (info) |
| 3048 | && h != NULL |
| 3049 | && h->dynindx != -1 |
| 3050 | && !h->non_got_ref |
| 3051 | && ((h->def_dynamic |
| 3052 | && !h->def_regular) |
| 3053 | || h->root.type == bfd_link_hash_undefweak |
| 3054 | || h->root.type == bfd_link_hash_undefined))) |
| 3055 | { |
| 3056 | Elf_Internal_Rela outrel; |
| 3057 | bfd_boolean skip, relocate = FALSE; |
| 3058 | |
| 3059 | /* When generating a shared object, these relocations |
| 3060 | are copied into the output file to be resolved at run |
| 3061 | time. */ |
| 3062 | |
| 3063 | BFD_ASSERT (sreloc != NULL); |
| 3064 | |
| 3065 | skip = FALSE; |
| 3066 | |
| 3067 | outrel.r_offset = |
| 3068 | _bfd_elf_section_offset (output_bfd, info, input_section, |
| 3069 | rel->r_offset); |
| 3070 | if (outrel.r_offset == (bfd_vma) -1) |
| 3071 | skip = TRUE; |
| 3072 | else if (outrel.r_offset == (bfd_vma) -2) |
| 3073 | skip = TRUE, relocate = TRUE; |
| 3074 | outrel.r_offset += (input_section->output_section->vma |
| 3075 | + input_section->output_offset); |
| 3076 | |
| 3077 | switch (r_type) |
| 3078 | { |
| 3079 | case R_TILEPRO_32_PCREL: |
| 3080 | case R_TILEPRO_16_PCREL: |
| 3081 | case R_TILEPRO_8_PCREL: |
| 3082 | /* If the symbol is not dynamic, we should not keep |
| 3083 | a dynamic relocation. But an .rela.* slot has been |
| 3084 | allocated for it, output R_TILEPRO_NONE. |
| 3085 | FIXME: Add code tracking needed dynamic relocs as |
| 3086 | e.g. i386 has. */ |
| 3087 | if (h->dynindx == -1) |
| 3088 | skip = TRUE, relocate = TRUE; |
| 3089 | break; |
| 3090 | } |
| 3091 | |
| 3092 | if (skip) |
| 3093 | memset (&outrel, 0, sizeof outrel); |
| 3094 | /* h->dynindx may be -1 if the symbol was marked to |
| 3095 | become local. */ |
| 3096 | else if (h != NULL && |
| 3097 | h->dynindx != -1 |
| 3098 | && (! is_plt |
| 3099 | || !bfd_link_pic (info) |
| 3100 | || !SYMBOLIC_BIND (info, h) |
| 3101 | || !h->def_regular)) |
| 3102 | { |
| 3103 | BFD_ASSERT (h->dynindx != -1); |
| 3104 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
| 3105 | outrel.r_addend = rel->r_addend; |
| 3106 | } |
| 3107 | else |
| 3108 | { |
| 3109 | if (r_type == R_TILEPRO_32) |
| 3110 | { |
| 3111 | outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE); |
| 3112 | outrel.r_addend = relocation + rel->r_addend; |
| 3113 | } |
| 3114 | else |
| 3115 | { |
| 3116 | long indx; |
| 3117 | |
| 3118 | outrel.r_addend = relocation + rel->r_addend; |
| 3119 | |
| 3120 | if (is_plt) |
| 3121 | sec = htab->elf.splt; |
| 3122 | |
| 3123 | if (bfd_is_abs_section (sec)) |
| 3124 | indx = 0; |
| 3125 | else if (sec == NULL || sec->owner == NULL) |
| 3126 | { |
| 3127 | bfd_set_error (bfd_error_bad_value); |
| 3128 | return FALSE; |
| 3129 | } |
| 3130 | else |
| 3131 | { |
| 3132 | asection *osec; |
| 3133 | |
| 3134 | /* We are turning this relocation into one |
| 3135 | against a section symbol. It would be |
| 3136 | proper to subtract the symbol's value, |
| 3137 | osec->vma, from the emitted reloc addend, |
| 3138 | but ld.so expects buggy relocs. */ |
| 3139 | osec = sec->output_section; |
| 3140 | indx = elf_section_data (osec)->dynindx; |
| 3141 | |
| 3142 | if (indx == 0) |
| 3143 | { |
| 3144 | osec = htab->elf.text_index_section; |
| 3145 | indx = elf_section_data (osec)->dynindx; |
| 3146 | } |
| 3147 | |
| 3148 | /* FIXME: we really should be able to link non-pic |
| 3149 | shared libraries. */ |
| 3150 | if (indx == 0) |
| 3151 | { |
| 3152 | BFD_FAIL (); |
| 3153 | _bfd_error_handler |
| 3154 | (_("%pB: probably compiled without -fPIC?"), |
| 3155 | input_bfd); |
| 3156 | bfd_set_error (bfd_error_bad_value); |
| 3157 | return FALSE; |
| 3158 | } |
| 3159 | } |
| 3160 | |
| 3161 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
| 3162 | } |
| 3163 | } |
| 3164 | |
| 3165 | tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel); |
| 3166 | |
| 3167 | /* This reloc will be computed at runtime, so there's no |
| 3168 | need to do anything now. */ |
| 3169 | if (! relocate) |
| 3170 | continue; |
| 3171 | } |
| 3172 | break; |
| 3173 | |
| 3174 | case R_TILEPRO_IMM16_X0_TLS_LE: |
| 3175 | case R_TILEPRO_IMM16_X1_TLS_LE: |
| 3176 | case R_TILEPRO_IMM16_X0_TLS_LE_LO: |
| 3177 | case R_TILEPRO_IMM16_X1_TLS_LE_LO: |
| 3178 | case R_TILEPRO_IMM16_X0_TLS_LE_HI: |
| 3179 | case R_TILEPRO_IMM16_X1_TLS_LE_HI: |
| 3180 | case R_TILEPRO_IMM16_X0_TLS_LE_HA: |
| 3181 | case R_TILEPRO_IMM16_X1_TLS_LE_HA: |
| 3182 | if (!bfd_link_executable (info)) |
| 3183 | { |
| 3184 | Elf_Internal_Rela outrel; |
| 3185 | bfd_boolean skip; |
| 3186 | |
| 3187 | BFD_ASSERT (sreloc != NULL); |
| 3188 | skip = FALSE; |
| 3189 | outrel.r_offset = |
| 3190 | _bfd_elf_section_offset (output_bfd, info, input_section, |
| 3191 | rel->r_offset); |
| 3192 | if (outrel.r_offset == (bfd_vma) -1) |
| 3193 | skip = TRUE; |
| 3194 | else if (outrel.r_offset == (bfd_vma) -2) |
| 3195 | skip = TRUE; |
| 3196 | outrel.r_offset += (input_section->output_section->vma |
| 3197 | + input_section->output_offset); |
| 3198 | if (skip) |
| 3199 | memset (&outrel, 0, sizeof outrel); |
| 3200 | else |
| 3201 | { |
| 3202 | outrel.r_info = ELF32_R_INFO (0, r_type); |
| 3203 | outrel.r_addend = relocation - dtpoff_base (info) |
| 3204 | + rel->r_addend; |
| 3205 | } |
| 3206 | |
| 3207 | tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel); |
| 3208 | continue; |
| 3209 | } |
| 3210 | relocation = tpoff (info, relocation); |
| 3211 | break; |
| 3212 | |
| 3213 | case R_TILEPRO_IMM16_X0_TLS_GD: |
| 3214 | case R_TILEPRO_IMM16_X1_TLS_GD: |
| 3215 | case R_TILEPRO_IMM16_X0_TLS_GD_LO: |
| 3216 | case R_TILEPRO_IMM16_X1_TLS_GD_LO: |
| 3217 | case R_TILEPRO_IMM16_X0_TLS_GD_HI: |
| 3218 | case R_TILEPRO_IMM16_X1_TLS_GD_HI: |
| 3219 | case R_TILEPRO_IMM16_X0_TLS_GD_HA: |
| 3220 | case R_TILEPRO_IMM16_X1_TLS_GD_HA: |
| 3221 | case R_TILEPRO_IMM16_X0_TLS_IE: |
| 3222 | case R_TILEPRO_IMM16_X1_TLS_IE: |
| 3223 | case R_TILEPRO_IMM16_X0_TLS_IE_LO: |
| 3224 | case R_TILEPRO_IMM16_X1_TLS_IE_LO: |
| 3225 | case R_TILEPRO_IMM16_X0_TLS_IE_HI: |
| 3226 | case R_TILEPRO_IMM16_X1_TLS_IE_HI: |
| 3227 | case R_TILEPRO_IMM16_X0_TLS_IE_HA: |
| 3228 | case R_TILEPRO_IMM16_X1_TLS_IE_HA: |
| 3229 | r_type = tilepro_elf_tls_transition (info, r_type, h == NULL); |
| 3230 | tls_type = GOT_UNKNOWN; |
| 3231 | if (h == NULL && local_got_offsets) |
| 3232 | tls_type |
| 3233 | = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx]; |
| 3234 | else if (h != NULL) |
| 3235 | { |
| 3236 | tls_type = tilepro_elf_hash_entry(h)->tls_type; |
| 3237 | if (bfd_link_executable (info) |
| 3238 | && h->dynindx == -1 |
| 3239 | && tls_type == GOT_TLS_IE) |
| 3240 | r_type = tilepro_tls_translate_to_le (r_type); |
| 3241 | } |
| 3242 | if (tls_type == GOT_TLS_IE) |
| 3243 | r_type = tilepro_tls_translate_to_ie (r_type); |
| 3244 | |
| 3245 | if (r_type == R_TILEPRO_IMM16_X0_TLS_LE |
| 3246 | || r_type == R_TILEPRO_IMM16_X1_TLS_LE |
| 3247 | || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO |
| 3248 | || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO |
| 3249 | || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI |
| 3250 | || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI |
| 3251 | || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA |
| 3252 | || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA) |
| 3253 | { |
| 3254 | relocation = tpoff (info, relocation); |
| 3255 | break; |
| 3256 | } |
| 3257 | |
| 3258 | if (h != NULL) |
| 3259 | { |
| 3260 | off = h->got.offset; |
| 3261 | h->got.offset |= 1; |
| 3262 | } |
| 3263 | else |
| 3264 | { |
| 3265 | BFD_ASSERT (local_got_offsets != NULL); |
| 3266 | off = local_got_offsets[r_symndx]; |
| 3267 | local_got_offsets[r_symndx] |= 1; |
| 3268 | } |
| 3269 | |
| 3270 | if (htab->elf.sgot == NULL) |
| 3271 | abort (); |
| 3272 | |
| 3273 | if ((off & 1) != 0) |
| 3274 | off &= ~1; |
| 3275 | else |
| 3276 | { |
| 3277 | Elf_Internal_Rela outrel; |
| 3278 | int indx = 0; |
| 3279 | bfd_boolean need_relocs = FALSE; |
| 3280 | |
| 3281 | if (htab->elf.srelgot == NULL) |
| 3282 | abort (); |
| 3283 | |
| 3284 | if (h != NULL) |
| 3285 | { |
| 3286 | bfd_boolean dyn; |
| 3287 | dyn = htab->elf.dynamic_sections_created; |
| 3288 | |
| 3289 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
| 3290 | bfd_link_pic (info), |
| 3291 | h) |
| 3292 | && (!bfd_link_pic (info) |
| 3293 | || !SYMBOL_REFERENCES_LOCAL (info, h))) |
| 3294 | { |
| 3295 | indx = h->dynindx; |
| 3296 | } |
| 3297 | } |
| 3298 | |
| 3299 | /* The GOT entries have not been initialized yet. Do it |
| 3300 | now, and emit any relocations. */ |
| 3301 | if ((bfd_link_pic (info) || indx != 0) |
| 3302 | && (h == NULL |
| 3303 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
| 3304 | || h->root.type != bfd_link_hash_undefweak)) |
| 3305 | need_relocs = TRUE; |
| 3306 | |
| 3307 | switch (r_type) |
| 3308 | { |
| 3309 | case R_TILEPRO_IMM16_X0_TLS_IE: |
| 3310 | case R_TILEPRO_IMM16_X1_TLS_IE: |
| 3311 | case R_TILEPRO_IMM16_X0_TLS_IE_LO: |
| 3312 | case R_TILEPRO_IMM16_X1_TLS_IE_LO: |
| 3313 | case R_TILEPRO_IMM16_X0_TLS_IE_HI: |
| 3314 | case R_TILEPRO_IMM16_X1_TLS_IE_HI: |
| 3315 | case R_TILEPRO_IMM16_X0_TLS_IE_HA: |
| 3316 | case R_TILEPRO_IMM16_X1_TLS_IE_HA: |
| 3317 | if (need_relocs) { |
| 3318 | bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off); |
| 3319 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
| 3320 | + htab->elf.sgot->output_offset + off); |
| 3321 | outrel.r_addend = 0; |
| 3322 | if (indx == 0) |
| 3323 | outrel.r_addend = relocation - dtpoff_base (info); |
| 3324 | outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32); |
| 3325 | tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot, |
| 3326 | &outrel); |
| 3327 | } else { |
| 3328 | bfd_put_32 (output_bfd, tpoff (info, relocation), |
| 3329 | htab->elf.sgot->contents + off); |
| 3330 | } |
| 3331 | break; |
| 3332 | |
| 3333 | case R_TILEPRO_IMM16_X0_TLS_GD: |
| 3334 | case R_TILEPRO_IMM16_X1_TLS_GD: |
| 3335 | case R_TILEPRO_IMM16_X0_TLS_GD_LO: |
| 3336 | case R_TILEPRO_IMM16_X1_TLS_GD_LO: |
| 3337 | case R_TILEPRO_IMM16_X0_TLS_GD_HI: |
| 3338 | case R_TILEPRO_IMM16_X1_TLS_GD_HI: |
| 3339 | case R_TILEPRO_IMM16_X0_TLS_GD_HA: |
| 3340 | case R_TILEPRO_IMM16_X1_TLS_GD_HA: |
| 3341 | if (need_relocs) { |
| 3342 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
| 3343 | + htab->elf.sgot->output_offset + off); |
| 3344 | outrel.r_addend = 0; |
| 3345 | outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32); |
| 3346 | bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off); |
| 3347 | tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot, |
| 3348 | &outrel); |
| 3349 | if (indx == 0) |
| 3350 | { |
| 3351 | BFD_ASSERT (! unresolved_reloc); |
| 3352 | bfd_put_32 (output_bfd, |
| 3353 | relocation - dtpoff_base (info), |
| 3354 | (htab->elf.sgot->contents + off + |
| 3355 | TILEPRO_BYTES_PER_WORD)); |
| 3356 | } |
| 3357 | else |
| 3358 | { |
| 3359 | bfd_put_32 (output_bfd, 0, |
| 3360 | (htab->elf.sgot->contents + off + |
| 3361 | TILEPRO_BYTES_PER_WORD)); |
| 3362 | outrel.r_info = ELF32_R_INFO (indx, |
| 3363 | R_TILEPRO_TLS_DTPOFF32); |
| 3364 | outrel.r_offset += TILEPRO_BYTES_PER_WORD; |
| 3365 | tilepro_elf_append_rela_32 (output_bfd, |
| 3366 | htab->elf.srelgot, &outrel); |
| 3367 | } |
| 3368 | } |
| 3369 | |
| 3370 | else { |
| 3371 | /* If we are not emitting relocations for a |
| 3372 | general dynamic reference, then we must be in a |
| 3373 | static link or an executable link with the |
| 3374 | symbol binding locally. Mark it as belonging |
| 3375 | to module 1, the executable. */ |
| 3376 | bfd_put_32 (output_bfd, 1, |
| 3377 | htab->elf.sgot->contents + off ); |
| 3378 | bfd_put_32 (output_bfd, relocation - dtpoff_base (info), |
| 3379 | htab->elf.sgot->contents + off + |
| 3380 | TILEPRO_BYTES_PER_WORD); |
| 3381 | } |
| 3382 | break; |
| 3383 | } |
| 3384 | } |
| 3385 | |
| 3386 | if (off >= (bfd_vma) -2) |
| 3387 | abort (); |
| 3388 | |
| 3389 | relocation = off - got_base; |
| 3390 | unresolved_reloc = FALSE; |
| 3391 | howto = tilepro_elf_howto_table + r_type; |
| 3392 | break; |
| 3393 | |
| 3394 | default: |
| 3395 | break; |
| 3396 | } |
| 3397 | |
| 3398 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 3399 | because such sections are not SEC_ALLOC and thus ld.so will |
| 3400 | not process them. */ |
| 3401 | if (unresolved_reloc |
| 3402 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 3403 | && h->def_dynamic) |
| 3404 | && _bfd_elf_section_offset (output_bfd, info, input_section, |
| 3405 | rel->r_offset) != (bfd_vma) -1) |
| 3406 | _bfd_error_handler |
| 3407 | /* xgettext:c-format */ |
| 3408 | (_("%pB(%pA+%#" PRIx64 "): " |
| 3409 | "unresolvable %s relocation against symbol `%s'"), |
| 3410 | input_bfd, |
| 3411 | input_section, |
| 3412 | (uint64_t) rel->r_offset, |
| 3413 | howto->name, |
| 3414 | h->root.root.string); |
| 3415 | |
| 3416 | r = bfd_reloc_continue; |
| 3417 | |
| 3418 | /* For the _HA types, we add 0x8000 so that if bit 15 is set, |
| 3419 | * we will increment bit 16. The howto->rightshift takes care |
| 3420 | * of the rest for us. */ |
| 3421 | switch (r_type) |
| 3422 | { |
| 3423 | case R_TILEPRO_HA16: |
| 3424 | case R_TILEPRO_IMM16_X0_HA: |
| 3425 | case R_TILEPRO_IMM16_X1_HA: |
| 3426 | case R_TILEPRO_IMM16_X0_HA_PCREL: |
| 3427 | case R_TILEPRO_IMM16_X1_HA_PCREL: |
| 3428 | case R_TILEPRO_IMM16_X0_GOT_HA: |
| 3429 | case R_TILEPRO_IMM16_X1_GOT_HA: |
| 3430 | case R_TILEPRO_IMM16_X0_TLS_GD_HA: |
| 3431 | case R_TILEPRO_IMM16_X1_TLS_GD_HA: |
| 3432 | case R_TILEPRO_IMM16_X0_TLS_IE_HA: |
| 3433 | case R_TILEPRO_IMM16_X1_TLS_IE_HA: |
| 3434 | relocation += 0x8000; |
| 3435 | break; |
| 3436 | } |
| 3437 | |
| 3438 | /* Get the operand creation function, if any. */ |
| 3439 | create_func = reloc_to_create_func[r_type]; |
| 3440 | if (create_func == NULL) |
| 3441 | { |
| 3442 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| 3443 | contents, rel->r_offset, |
| 3444 | relocation, rel->r_addend); |
| 3445 | } |
| 3446 | else |
| 3447 | { |
| 3448 | if (howto->pc_relative) |
| 3449 | { |
| 3450 | relocation -= |
| 3451 | input_section->output_section->vma + input_section->output_offset; |
| 3452 | if (howto->pcrel_offset) |
| 3453 | relocation -= rel->r_offset; |
| 3454 | } |
| 3455 | |
| 3456 | bfd_byte *data; |
| 3457 | |
| 3458 | /* Add the relocation addend if any to the final target value */ |
| 3459 | relocation += rel->r_addend; |
| 3460 | |
| 3461 | /* Do basic range checking */ |
| 3462 | r = bfd_check_overflow (howto->complain_on_overflow, |
| 3463 | howto->bitsize, |
| 3464 | howto->rightshift, |
| 3465 | 32, |
| 3466 | relocation); |
| 3467 | |
| 3468 | /* |
| 3469 | * Write the relocated value out into the raw section data. |
| 3470 | * Don't put a relocation out in the .rela section. |
| 3471 | */ |
| 3472 | tilepro_bundle_bits mask = create_func(-1); |
| 3473 | tilepro_bundle_bits value = create_func(relocation >> howto->rightshift); |
| 3474 | |
| 3475 | /* Only touch bytes while the mask is not 0, so we |
| 3476 | don't write to out of bounds memory if this is actually |
| 3477 | a 16-bit switch instruction. */ |
| 3478 | for (data = contents + rel->r_offset; mask != 0; data++) |
| 3479 | { |
| 3480 | bfd_byte byte_mask = (bfd_byte)mask; |
| 3481 | *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask); |
| 3482 | mask >>= 8; |
| 3483 | value >>= 8; |
| 3484 | } |
| 3485 | } |
| 3486 | |
| 3487 | if (r != bfd_reloc_ok) |
| 3488 | { |
| 3489 | const char *msg = NULL; |
| 3490 | |
| 3491 | switch (r) |
| 3492 | { |
| 3493 | case bfd_reloc_overflow: |
| 3494 | (*info->callbacks->reloc_overflow) |
| 3495 | (info, (h ? &h->root : NULL), name, howto->name, |
| 3496 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); |
| 3497 | break; |
| 3498 | |
| 3499 | case bfd_reloc_undefined: |
| 3500 | (*info->callbacks->undefined_symbol) |
| 3501 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); |
| 3502 | break; |
| 3503 | |
| 3504 | case bfd_reloc_outofrange: |
| 3505 | msg = _("internal error: out of range error"); |
| 3506 | break; |
| 3507 | |
| 3508 | case bfd_reloc_notsupported: |
| 3509 | msg = _("internal error: unsupported relocation error"); |
| 3510 | break; |
| 3511 | |
| 3512 | case bfd_reloc_dangerous: |
| 3513 | msg = _("internal error: dangerous relocation"); |
| 3514 | break; |
| 3515 | |
| 3516 | default: |
| 3517 | msg = _("internal error: unknown error"); |
| 3518 | break; |
| 3519 | } |
| 3520 | |
| 3521 | if (msg) |
| 3522 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
| 3523 | input_section, rel->r_offset); |
| 3524 | } |
| 3525 | } |
| 3526 | |
| 3527 | return TRUE; |
| 3528 | } |
| 3529 | |
| 3530 | /* Finish up dynamic symbol handling. We set the contents of various |
| 3531 | dynamic sections here. */ |
| 3532 | |
| 3533 | static bfd_boolean |
| 3534 | tilepro_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 3535 | struct bfd_link_info *info, |
| 3536 | struct elf_link_hash_entry *h, |
| 3537 | Elf_Internal_Sym *sym) |
| 3538 | { |
| 3539 | struct tilepro_elf_link_hash_table *htab; |
| 3540 | |
| 3541 | htab = tilepro_elf_hash_table (info); |
| 3542 | BFD_ASSERT (htab != NULL); |
| 3543 | |
| 3544 | if (h->plt.offset != (bfd_vma) -1) |
| 3545 | { |
| 3546 | asection *splt; |
| 3547 | asection *srela; |
| 3548 | asection *sgotplt; |
| 3549 | Elf_Internal_Rela rela; |
| 3550 | bfd_byte *loc; |
| 3551 | bfd_vma r_offset; |
| 3552 | |
| 3553 | int rela_index; |
| 3554 | |
| 3555 | /* This symbol has an entry in the PLT. Set it up. */ |
| 3556 | |
| 3557 | BFD_ASSERT (h->dynindx != -1); |
| 3558 | |
| 3559 | splt = htab->elf.splt; |
| 3560 | srela = htab->elf.srelplt; |
| 3561 | sgotplt = htab->elf.sgotplt; |
| 3562 | |
| 3563 | if (splt == NULL || srela == NULL) |
| 3564 | abort (); |
| 3565 | |
| 3566 | /* Fill in the entry in the procedure linkage table. */ |
| 3567 | rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset, |
| 3568 | &r_offset); |
| 3569 | |
| 3570 | /* Fill in the entry in the global offset table, which initially points |
| 3571 | to the beginning of the plt. */ |
| 3572 | bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset, |
| 3573 | sgotplt->contents + r_offset); |
| 3574 | |
| 3575 | /* Fill in the entry in the .rela.plt section. */ |
| 3576 | rela.r_offset = (sgotplt->output_section->vma |
| 3577 | + sgotplt->output_offset |
| 3578 | + r_offset); |
| 3579 | rela.r_addend = 0; |
| 3580 | rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT); |
| 3581 | |
| 3582 | loc = srela->contents + rela_index * sizeof (Elf32_External_Rela); |
| 3583 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
| 3584 | |
| 3585 | if (!h->def_regular) |
| 3586 | { |
| 3587 | /* Mark the symbol as undefined, rather than as defined in |
| 3588 | the .plt section. Leave the value alone. */ |
| 3589 | sym->st_shndx = SHN_UNDEF; |
| 3590 | /* If the symbol is weak, we do need to clear the value. |
| 3591 | Otherwise, the PLT entry would provide a definition for |
| 3592 | the symbol even if the symbol wasn't defined anywhere, |
| 3593 | and so the symbol would never be NULL. */ |
| 3594 | if (!h->ref_regular_nonweak) |
| 3595 | sym->st_value = 0; |
| 3596 | } |
| 3597 | } |
| 3598 | |
| 3599 | if (h->got.offset != (bfd_vma) -1 |
| 3600 | && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD |
| 3601 | && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE) |
| 3602 | { |
| 3603 | asection *sgot; |
| 3604 | asection *srela; |
| 3605 | Elf_Internal_Rela rela; |
| 3606 | |
| 3607 | /* This symbol has an entry in the GOT. Set it up. */ |
| 3608 | |
| 3609 | sgot = htab->elf.sgot; |
| 3610 | srela = htab->elf.srelgot; |
| 3611 | BFD_ASSERT (sgot != NULL && srela != NULL); |
| 3612 | |
| 3613 | rela.r_offset = (sgot->output_section->vma |
| 3614 | + sgot->output_offset |
| 3615 | + (h->got.offset &~ (bfd_vma) 1)); |
| 3616 | |
| 3617 | /* If this is a -Bsymbolic link, and the symbol is defined |
| 3618 | locally, we just want to emit a RELATIVE reloc. Likewise if |
| 3619 | the symbol was forced to be local because of a version file. |
| 3620 | The entry in the global offset table will already have been |
| 3621 | initialized in the relocate_section function. */ |
| 3622 | if (bfd_link_pic (info) |
| 3623 | && (info->symbolic || h->dynindx == -1) |
| 3624 | && h->def_regular) |
| 3625 | { |
| 3626 | asection *sec = h->root.u.def.section; |
| 3627 | rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE); |
| 3628 | rela.r_addend = (h->root.u.def.value |
| 3629 | + sec->output_section->vma |
| 3630 | + sec->output_offset); |
| 3631 | } |
| 3632 | else |
| 3633 | { |
| 3634 | rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT); |
| 3635 | rela.r_addend = 0; |
| 3636 | } |
| 3637 | |
| 3638 | bfd_put_32 (output_bfd, 0, |
| 3639 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); |
| 3640 | tilepro_elf_append_rela_32 (output_bfd, srela, &rela); |
| 3641 | } |
| 3642 | |
| 3643 | if (h->needs_copy) |
| 3644 | { |
| 3645 | asection *s; |
| 3646 | Elf_Internal_Rela rela; |
| 3647 | |
| 3648 | /* This symbols needs a copy reloc. Set it up. */ |
| 3649 | BFD_ASSERT (h->dynindx != -1); |
| 3650 | |
| 3651 | rela.r_offset = (h->root.u.def.value |
| 3652 | + h->root.u.def.section->output_section->vma |
| 3653 | + h->root.u.def.section->output_offset); |
| 3654 | rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY); |
| 3655 | rela.r_addend = 0; |
| 3656 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 3657 | s = htab->elf.sreldynrelro; |
| 3658 | else |
| 3659 | s = htab->elf.srelbss; |
| 3660 | tilepro_elf_append_rela_32 (output_bfd, s, &rela); |
| 3661 | } |
| 3662 | |
| 3663 | /* Mark some specially defined symbols as absolute. */ |
| 3664 | if (h == htab->elf.hdynamic |
| 3665 | || (h == htab->elf.hgot || h == htab->elf.hplt)) |
| 3666 | sym->st_shndx = SHN_ABS; |
| 3667 | |
| 3668 | return TRUE; |
| 3669 | } |
| 3670 | |
| 3671 | /* Finish up the dynamic sections. */ |
| 3672 | |
| 3673 | static bfd_boolean |
| 3674 | tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, |
| 3675 | bfd *dynobj, asection *sdyn, |
| 3676 | asection *splt ATTRIBUTE_UNUSED) |
| 3677 | { |
| 3678 | Elf32_External_Dyn *dyncon, *dynconend; |
| 3679 | struct tilepro_elf_link_hash_table *htab; |
| 3680 | |
| 3681 | htab = tilepro_elf_hash_table (info); |
| 3682 | BFD_ASSERT (htab != NULL); |
| 3683 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
| 3684 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
| 3685 | for (; dyncon < dynconend; dyncon++) |
| 3686 | { |
| 3687 | Elf_Internal_Dyn dyn; |
| 3688 | asection *s; |
| 3689 | |
| 3690 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
| 3691 | |
| 3692 | switch (dyn.d_tag) |
| 3693 | { |
| 3694 | case DT_PLTGOT: |
| 3695 | s = htab->elf.sgotplt; |
| 3696 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 3697 | break; |
| 3698 | case DT_JMPREL: |
| 3699 | s = htab->elf.srelplt; |
| 3700 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 3701 | break; |
| 3702 | case DT_PLTRELSZ: |
| 3703 | s = htab->elf.srelplt; |
| 3704 | dyn.d_un.d_val = s->size; |
| 3705 | break; |
| 3706 | default: |
| 3707 | continue; |
| 3708 | } |
| 3709 | |
| 3710 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3711 | } |
| 3712 | return TRUE; |
| 3713 | } |
| 3714 | |
| 3715 | static bfd_boolean |
| 3716 | tilepro_elf_finish_dynamic_sections (bfd *output_bfd, |
| 3717 | struct bfd_link_info *info) |
| 3718 | { |
| 3719 | bfd *dynobj; |
| 3720 | asection *sdyn; |
| 3721 | struct tilepro_elf_link_hash_table *htab; |
| 3722 | |
| 3723 | htab = tilepro_elf_hash_table (info); |
| 3724 | BFD_ASSERT (htab != NULL); |
| 3725 | dynobj = htab->elf.dynobj; |
| 3726 | |
| 3727 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 3728 | |
| 3729 | if (elf_hash_table (info)->dynamic_sections_created) |
| 3730 | { |
| 3731 | asection *splt; |
| 3732 | bfd_boolean ret; |
| 3733 | |
| 3734 | splt = htab->elf.splt; |
| 3735 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
| 3736 | |
| 3737 | ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt); |
| 3738 | |
| 3739 | if (!ret) |
| 3740 | return ret; |
| 3741 | |
| 3742 | /* Fill in the first entry in the procedure linkage table. */ |
| 3743 | if (splt->size > 0) |
| 3744 | { |
| 3745 | memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE); |
| 3746 | memset (splt->contents + PLT_HEADER_SIZE, 0, |
| 3747 | PLT_ENTRY_SIZE - PLT_HEADER_SIZE); |
| 3748 | } |
| 3749 | |
| 3750 | if (elf_section_data (splt->output_section) != NULL) |
| 3751 | elf_section_data (splt->output_section)->this_hdr.sh_entsize |
| 3752 | = PLT_ENTRY_SIZE; |
| 3753 | } |
| 3754 | |
| 3755 | if (htab->elf.sgotplt) |
| 3756 | { |
| 3757 | if (bfd_is_abs_section (htab->elf.sgotplt->output_section)) |
| 3758 | { |
| 3759 | _bfd_error_handler |
| 3760 | (_("discarded output section: `%pA'"), htab->elf.sgotplt); |
| 3761 | return FALSE; |
| 3762 | } |
| 3763 | |
| 3764 | if (htab->elf.sgotplt->size > 0) |
| 3765 | { |
| 3766 | /* Write the first two entries in .got.plt, needed for the dynamic |
| 3767 | linker. */ |
| 3768 | bfd_put_32 (output_bfd, (bfd_vma) -1, |
| 3769 | htab->elf.sgotplt->contents); |
| 3770 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
| 3771 | htab->elf.sgotplt->contents + GOT_ENTRY_SIZE); |
| 3772 | } |
| 3773 | |
| 3774 | elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize |
| 3775 | = GOT_ENTRY_SIZE; |
| 3776 | } |
| 3777 | |
| 3778 | if (htab->elf.sgot) |
| 3779 | { |
| 3780 | if (htab->elf.sgot->size > 0) |
| 3781 | { |
| 3782 | /* Set the first entry in the global offset table to the address of |
| 3783 | the dynamic section. */ |
| 3784 | bfd_vma val = (sdyn ? |
| 3785 | sdyn->output_section->vma + sdyn->output_offset : |
| 3786 | 0); |
| 3787 | bfd_put_32 (output_bfd, val, htab->elf.sgot->contents); |
| 3788 | } |
| 3789 | |
| 3790 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize |
| 3791 | = GOT_ENTRY_SIZE; |
| 3792 | } |
| 3793 | |
| 3794 | return TRUE; |
| 3795 | } |
| 3796 | |
| 3797 | \f |
| 3798 | |
| 3799 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
| 3800 | or (bfd_vma) -1 if it should not be included. */ |
| 3801 | |
| 3802 | static bfd_vma |
| 3803 | tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt, |
| 3804 | const arelent *rel ATTRIBUTE_UNUSED) |
| 3805 | { |
| 3806 | return plt->vma + (i + 1) * PLT_ENTRY_SIZE; |
| 3807 | } |
| 3808 | |
| 3809 | static enum elf_reloc_type_class |
| 3810 | tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
| 3811 | const asection *rel_sec ATTRIBUTE_UNUSED, |
| 3812 | const Elf_Internal_Rela *rela) |
| 3813 | { |
| 3814 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
| 3815 | { |
| 3816 | case R_TILEPRO_RELATIVE: |
| 3817 | return reloc_class_relative; |
| 3818 | case R_TILEPRO_JMP_SLOT: |
| 3819 | return reloc_class_plt; |
| 3820 | case R_TILEPRO_COPY: |
| 3821 | return reloc_class_copy; |
| 3822 | default: |
| 3823 | return reloc_class_normal; |
| 3824 | } |
| 3825 | } |
| 3826 | |
| 3827 | static int |
| 3828 | tilepro_additional_program_headers (bfd *abfd, |
| 3829 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
| 3830 | { |
| 3831 | /* Each .intrpt section specified by the user adds another PT_LOAD |
| 3832 | header since the sections are discontiguous. */ |
| 3833 | static const char intrpt_sections[4][9] = |
| 3834 | { |
| 3835 | ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3" |
| 3836 | }; |
| 3837 | int count = 0; |
| 3838 | int i; |
| 3839 | |
| 3840 | for (i = 0; i < 4; i++) |
| 3841 | { |
| 3842 | asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]); |
| 3843 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) |
| 3844 | ++count; |
| 3845 | } |
| 3846 | |
| 3847 | /* Add four "padding" headers in to leave room in case a custom linker |
| 3848 | script does something fancy. Otherwise ld complains that it ran |
| 3849 | out of program headers and refuses to link. */ |
| 3850 | count += 4; |
| 3851 | |
| 3852 | return count; |
| 3853 | } |
| 3854 | |
| 3855 | #define ELF_ARCH bfd_arch_tilepro |
| 3856 | #define ELF_TARGET_ID TILEPRO_ELF_DATA |
| 3857 | #define ELF_MACHINE_CODE EM_TILEPRO |
| 3858 | #define ELF_MAXPAGESIZE 0x10000 |
| 3859 | #define ELF_COMMONPAGESIZE 0x10000 |
| 3860 | |
| 3861 | #define TARGET_LITTLE_SYM tilepro_elf32_vec |
| 3862 | #define TARGET_LITTLE_NAME "elf32-tilepro" |
| 3863 | |
| 3864 | #define elf_backend_reloc_type_class tilepro_reloc_type_class |
| 3865 | |
| 3866 | #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup |
| 3867 | #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create |
| 3868 | #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup |
| 3869 | |
| 3870 | #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol |
| 3871 | #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections |
| 3872 | #define elf_backend_check_relocs tilepro_elf_check_relocs |
| 3873 | #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol |
| 3874 | #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym |
| 3875 | #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections |
| 3876 | #define elf_backend_relocate_section tilepro_elf_relocate_section |
| 3877 | #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol |
| 3878 | #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections |
| 3879 | #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook |
| 3880 | #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val |
| 3881 | #define elf_info_to_howto_rel NULL |
| 3882 | #define elf_info_to_howto tilepro_info_to_howto_rela |
| 3883 | #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus |
| 3884 | #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo |
| 3885 | #define elf_backend_additional_program_headers tilepro_additional_program_headers |
| 3886 | |
| 3887 | #define bfd_elf32_mkobject tilepro_elf_mkobject |
| 3888 | |
| 3889 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
| 3890 | |
| 3891 | #define elf_backend_can_gc_sections 1 |
| 3892 | #define elf_backend_can_refcount 1 |
| 3893 | #define elf_backend_want_got_plt 1 |
| 3894 | #define elf_backend_plt_readonly 1 |
| 3895 | /* Align PLT mod 64 byte L2 line size. */ |
| 3896 | #define elf_backend_plt_alignment 6 |
| 3897 | #define elf_backend_want_plt_sym 1 |
| 3898 | #define elf_backend_got_header_size GOT_ENTRY_SIZE |
| 3899 | #define elf_backend_want_dynrelro 1 |
| 3900 | #define elf_backend_rela_normal 1 |
| 3901 | #define elf_backend_default_execstack 0 |
| 3902 | |
| 3903 | #include "elf32-target.h" |