| 1 | /* MIPS-specific support for 64-bit ELF |
| 2 | Copyright 1996, 1997, 1998 Free Software Foundation, Inc. |
| 3 | Ian Lance Taylor, Cygnus Support |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | /* This file supports the 64-bit MIPS ELF ABI. |
| 22 | |
| 23 | The MIPS 64-bit ELF ABI uses an unusual reloc format. This file |
| 24 | overrides the usual ELF reloc handling, and handles reading and |
| 25 | writing the relocations here. |
| 26 | |
| 27 | The MIPS 64-bit ELF ABI also uses an unusual archive map format. */ |
| 28 | |
| 29 | #include "bfd.h" |
| 30 | #include "sysdep.h" |
| 31 | #include "libbfd.h" |
| 32 | #include "aout/ar.h" |
| 33 | #include "bfdlink.h" |
| 34 | #include "genlink.h" |
| 35 | #include "elf-bfd.h" |
| 36 | #include "elf/mips.h" |
| 37 | |
| 38 | /* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to |
| 39 | use ECOFF. However, we support it anyhow for an easier changeover. */ |
| 40 | #include "coff/sym.h" |
| 41 | #include "coff/symconst.h" |
| 42 | #include "coff/internal.h" |
| 43 | #include "coff/ecoff.h" |
| 44 | /* The 64 bit versions of the mdebug data structures are in alpha.h. */ |
| 45 | #include "coff/alpha.h" |
| 46 | #define ECOFF_64 |
| 47 | #include "ecoffswap.h" |
| 48 | |
| 49 | static void mips_elf64_swap_reloc_in |
| 50 | PARAMS ((bfd *, const Elf64_Mips_External_Rel *, |
| 51 | Elf64_Mips_Internal_Rel *)); |
| 52 | static void mips_elf64_swap_reloca_in |
| 53 | PARAMS ((bfd *, const Elf64_Mips_External_Rela *, |
| 54 | Elf64_Mips_Internal_Rela *)); |
| 55 | #if 0 |
| 56 | static void mips_elf64_swap_reloc_out |
| 57 | PARAMS ((bfd *, const Elf64_Mips_Internal_Rel *, |
| 58 | Elf64_Mips_External_Rel *)); |
| 59 | #endif |
| 60 | static void mips_elf64_swap_reloca_out |
| 61 | PARAMS ((bfd *, const Elf64_Mips_Internal_Rela *, |
| 62 | Elf64_Mips_External_Rela *)); |
| 63 | static reloc_howto_type *mips_elf64_reloc_type_lookup |
| 64 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| 65 | static long mips_elf64_get_reloc_upper_bound PARAMS ((bfd *, asection *)); |
| 66 | static boolean mips_elf64_slurp_one_reloc_table |
| 67 | PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *)); |
| 68 | static boolean mips_elf64_slurp_reloc_table |
| 69 | PARAMS ((bfd *, asection *, asymbol **, boolean)); |
| 70 | static void mips_elf64_write_relocs PARAMS ((bfd *, asection *, PTR)); |
| 71 | static boolean mips_elf64_section_from_shdr |
| 72 | PARAMS ((bfd *, Elf_Internal_Shdr *, char *)); |
| 73 | static boolean mips_elf64_section_processing |
| 74 | PARAMS ((bfd *, Elf_Internal_Shdr *)); |
| 75 | static boolean mips_elf64_slurp_armap PARAMS ((bfd *)); |
| 76 | static boolean mips_elf64_write_armap |
| 77 | PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); |
| 78 | |
| 79 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
| 80 | from smaller values. Start with zero, widen, *then* decrement. */ |
| 81 | #define MINUS_ONE (((bfd_vma)0) - 1) |
| 82 | |
| 83 | /* The relocation table used for SHT_REL sections. */ |
| 84 | |
| 85 | static reloc_howto_type mips_elf64_howto_table_rel[] = |
| 86 | { |
| 87 | /* No relocation. */ |
| 88 | HOWTO (R_MIPS_NONE, /* type */ |
| 89 | 0, /* rightshift */ |
| 90 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 91 | 0, /* bitsize */ |
| 92 | false, /* pc_relative */ |
| 93 | 0, /* bitpos */ |
| 94 | complain_overflow_dont, /* complain_on_overflow */ |
| 95 | bfd_elf_generic_reloc, /* special_function */ |
| 96 | "R_MIPS_NONE", /* name */ |
| 97 | false, /* partial_inplace */ |
| 98 | 0, /* src_mask */ |
| 99 | 0, /* dst_mask */ |
| 100 | false), /* pcrel_offset */ |
| 101 | |
| 102 | /* 16 bit relocation. */ |
| 103 | HOWTO (R_MIPS_16, /* type */ |
| 104 | 0, /* rightshift */ |
| 105 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 106 | 16, /* bitsize */ |
| 107 | false, /* pc_relative */ |
| 108 | 0, /* bitpos */ |
| 109 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 110 | bfd_elf_generic_reloc, /* special_function */ |
| 111 | "R_MIPS_16", /* name */ |
| 112 | true, /* partial_inplace */ |
| 113 | 0xffff, /* src_mask */ |
| 114 | 0xffff, /* dst_mask */ |
| 115 | false), /* pcrel_offset */ |
| 116 | |
| 117 | /* 32 bit relocation. */ |
| 118 | HOWTO (R_MIPS_32, /* type */ |
| 119 | 0, /* rightshift */ |
| 120 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 121 | 32, /* bitsize */ |
| 122 | false, /* pc_relative */ |
| 123 | 0, /* bitpos */ |
| 124 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 125 | bfd_elf_generic_reloc, /* special_function */ |
| 126 | "R_MIPS_32", /* name */ |
| 127 | true, /* partial_inplace */ |
| 128 | 0xffffffff, /* src_mask */ |
| 129 | 0xffffffff, /* dst_mask */ |
| 130 | false), /* pcrel_offset */ |
| 131 | |
| 132 | /* 32 bit symbol relative relocation. */ |
| 133 | HOWTO (R_MIPS_REL32, /* type */ |
| 134 | 0, /* rightshift */ |
| 135 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 136 | 32, /* bitsize */ |
| 137 | false, /* pc_relative */ |
| 138 | 0, /* bitpos */ |
| 139 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 140 | bfd_elf_generic_reloc, /* special_function */ |
| 141 | "R_MIPS_REL32", /* name */ |
| 142 | true, /* partial_inplace */ |
| 143 | 0xffffffff, /* src_mask */ |
| 144 | 0xffffffff, /* dst_mask */ |
| 145 | false), /* pcrel_offset */ |
| 146 | |
| 147 | /* 26 bit branch address. */ |
| 148 | HOWTO (R_MIPS_26, /* type */ |
| 149 | 2, /* rightshift */ |
| 150 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 151 | 26, /* bitsize */ |
| 152 | false, /* pc_relative */ |
| 153 | 0, /* bitpos */ |
| 154 | complain_overflow_dont, /* complain_on_overflow */ |
| 155 | /* This needs complex overflow |
| 156 | detection, because the upper four |
| 157 | bits must match the PC. */ |
| 158 | bfd_elf_generic_reloc, /* special_function */ |
| 159 | "R_MIPS_26", /* name */ |
| 160 | true, /* partial_inplace */ |
| 161 | 0x3ffffff, /* src_mask */ |
| 162 | 0x3ffffff, /* dst_mask */ |
| 163 | false), /* pcrel_offset */ |
| 164 | |
| 165 | /* High 16 bits of symbol value. */ |
| 166 | HOWTO (R_MIPS_HI16, /* type */ |
| 167 | 0, /* rightshift */ |
| 168 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 169 | 16, /* bitsize */ |
| 170 | false, /* pc_relative */ |
| 171 | 0, /* bitpos */ |
| 172 | complain_overflow_dont, /* complain_on_overflow */ |
| 173 | _bfd_mips_elf_hi16_reloc, /* special_function */ |
| 174 | "R_MIPS_HI16", /* name */ |
| 175 | true, /* partial_inplace */ |
| 176 | 0xffff, /* src_mask */ |
| 177 | 0xffff, /* dst_mask */ |
| 178 | false), /* pcrel_offset */ |
| 179 | |
| 180 | /* Low 16 bits of symbol value. */ |
| 181 | HOWTO (R_MIPS_LO16, /* type */ |
| 182 | 0, /* rightshift */ |
| 183 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 184 | 16, /* bitsize */ |
| 185 | false, /* pc_relative */ |
| 186 | 0, /* bitpos */ |
| 187 | complain_overflow_dont, /* complain_on_overflow */ |
| 188 | _bfd_mips_elf_lo16_reloc, /* special_function */ |
| 189 | "R_MIPS_LO16", /* name */ |
| 190 | true, /* partial_inplace */ |
| 191 | 0xffff, /* src_mask */ |
| 192 | 0xffff, /* dst_mask */ |
| 193 | false), /* pcrel_offset */ |
| 194 | |
| 195 | /* GP relative reference. */ |
| 196 | HOWTO (R_MIPS_GPREL16, /* type */ |
| 197 | 0, /* rightshift */ |
| 198 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 199 | 16, /* bitsize */ |
| 200 | false, /* pc_relative */ |
| 201 | 0, /* bitpos */ |
| 202 | complain_overflow_signed, /* complain_on_overflow */ |
| 203 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 204 | "R_MIPS_GPREL16", /* name */ |
| 205 | true, /* partial_inplace */ |
| 206 | 0xffff, /* src_mask */ |
| 207 | 0xffff, /* dst_mask */ |
| 208 | false), /* pcrel_offset */ |
| 209 | |
| 210 | /* Reference to literal section. */ |
| 211 | HOWTO (R_MIPS_LITERAL, /* type */ |
| 212 | 0, /* rightshift */ |
| 213 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 214 | 16, /* bitsize */ |
| 215 | false, /* pc_relative */ |
| 216 | 0, /* bitpos */ |
| 217 | complain_overflow_signed, /* complain_on_overflow */ |
| 218 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 219 | "R_MIPS_LITERAL", /* name */ |
| 220 | true, /* partial_inplace */ |
| 221 | 0xffff, /* src_mask */ |
| 222 | 0xffff, /* dst_mask */ |
| 223 | false), /* pcrel_offset */ |
| 224 | |
| 225 | /* Reference to global offset table. */ |
| 226 | HOWTO (R_MIPS_GOT16, /* type */ |
| 227 | 0, /* rightshift */ |
| 228 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 229 | 16, /* bitsize */ |
| 230 | false, /* pc_relative */ |
| 231 | 0, /* bitpos */ |
| 232 | complain_overflow_signed, /* complain_on_overflow */ |
| 233 | _bfd_mips_elf_got16_reloc, /* special_function */ |
| 234 | "R_MIPS_GOT16", /* name */ |
| 235 | false, /* partial_inplace */ |
| 236 | 0, /* src_mask */ |
| 237 | 0xffff, /* dst_mask */ |
| 238 | false), /* pcrel_offset */ |
| 239 | |
| 240 | /* 16 bit PC relative reference. */ |
| 241 | HOWTO (R_MIPS_PC16, /* type */ |
| 242 | 0, /* rightshift */ |
| 243 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 244 | 16, /* bitsize */ |
| 245 | true, /* pc_relative */ |
| 246 | 0, /* bitpos */ |
| 247 | complain_overflow_signed, /* complain_on_overflow */ |
| 248 | bfd_elf_generic_reloc, /* special_function */ |
| 249 | "R_MIPS_PC16", /* name */ |
| 250 | true, /* partial_inplace */ |
| 251 | 0xffff, /* src_mask */ |
| 252 | 0xffff, /* dst_mask */ |
| 253 | false), /* pcrel_offset */ |
| 254 | |
| 255 | /* 16 bit call through global offset table. */ |
| 256 | /* FIXME: This is not handled correctly. */ |
| 257 | HOWTO (R_MIPS_CALL16, /* type */ |
| 258 | 0, /* rightshift */ |
| 259 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 260 | 16, /* bitsize */ |
| 261 | false, /* pc_relative */ |
| 262 | 0, /* bitpos */ |
| 263 | complain_overflow_signed, /* complain_on_overflow */ |
| 264 | bfd_elf_generic_reloc, /* special_function */ |
| 265 | "R_MIPS_CALL16", /* name */ |
| 266 | false, /* partial_inplace */ |
| 267 | 0, /* src_mask */ |
| 268 | 0xffff, /* dst_mask */ |
| 269 | false), /* pcrel_offset */ |
| 270 | |
| 271 | /* 32 bit GP relative reference. */ |
| 272 | HOWTO (R_MIPS_GPREL32, /* type */ |
| 273 | 0, /* rightshift */ |
| 274 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 275 | 32, /* bitsize */ |
| 276 | false, /* pc_relative */ |
| 277 | 0, /* bitpos */ |
| 278 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 279 | _bfd_mips_elf_gprel32_reloc, /* special_function */ |
| 280 | "R_MIPS_GPREL32", /* name */ |
| 281 | true, /* partial_inplace */ |
| 282 | 0xffffffff, /* src_mask */ |
| 283 | 0xffffffff, /* dst_mask */ |
| 284 | false), /* pcrel_offset */ |
| 285 | |
| 286 | { 13 }, |
| 287 | { 14 }, |
| 288 | { 15 }, |
| 289 | |
| 290 | /* A 5 bit shift field. */ |
| 291 | HOWTO (R_MIPS_SHIFT5, /* type */ |
| 292 | 0, /* rightshift */ |
| 293 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 294 | 5, /* bitsize */ |
| 295 | false, /* pc_relative */ |
| 296 | 6, /* bitpos */ |
| 297 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 298 | bfd_elf_generic_reloc, /* special_function */ |
| 299 | "R_MIPS_SHIFT5", /* name */ |
| 300 | true, /* partial_inplace */ |
| 301 | 0x000007c0, /* src_mask */ |
| 302 | 0x000007c0, /* dst_mask */ |
| 303 | false), /* pcrel_offset */ |
| 304 | |
| 305 | /* A 6 bit shift field. */ |
| 306 | /* FIXME: This is not handled correctly; a special function is |
| 307 | needed to put the most significant bit in the right place. */ |
| 308 | HOWTO (R_MIPS_SHIFT6, /* type */ |
| 309 | 0, /* rightshift */ |
| 310 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 311 | 6, /* bitsize */ |
| 312 | false, /* pc_relative */ |
| 313 | 6, /* bitpos */ |
| 314 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 315 | bfd_elf_generic_reloc, /* special_function */ |
| 316 | "R_MIPS_SHIFT6", /* name */ |
| 317 | true, /* partial_inplace */ |
| 318 | 0x000007c4, /* src_mask */ |
| 319 | 0x000007c4, /* dst_mask */ |
| 320 | false), /* pcrel_offset */ |
| 321 | |
| 322 | /* 64 bit relocation. */ |
| 323 | HOWTO (R_MIPS_64, /* type */ |
| 324 | 0, /* rightshift */ |
| 325 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 326 | 64, /* bitsize */ |
| 327 | false, /* pc_relative */ |
| 328 | 0, /* bitpos */ |
| 329 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 330 | bfd_elf_generic_reloc, /* special_function */ |
| 331 | "R_MIPS_64", /* name */ |
| 332 | true, /* partial_inplace */ |
| 333 | MINUS_ONE, /* src_mask */ |
| 334 | MINUS_ONE, /* dst_mask */ |
| 335 | false), /* pcrel_offset */ |
| 336 | |
| 337 | /* Displacement in the global offset table. */ |
| 338 | /* FIXME: Not handled correctly. */ |
| 339 | HOWTO (R_MIPS_GOT_DISP, /* type */ |
| 340 | 0, /* rightshift */ |
| 341 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 342 | 16, /* bitsize */ |
| 343 | false, /* pc_relative */ |
| 344 | 0, /* bitpos */ |
| 345 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 346 | bfd_elf_generic_reloc, /* special_function */ |
| 347 | "R_MIPS_GOT_DISP", /* name */ |
| 348 | true, /* partial_inplace */ |
| 349 | 0x0000ffff, /* src_mask */ |
| 350 | 0x0000ffff, /* dst_mask */ |
| 351 | false), /* pcrel_offset */ |
| 352 | |
| 353 | /* Displacement to page pointer in the global offset table. */ |
| 354 | /* FIXME: Not handled correctly. */ |
| 355 | HOWTO (R_MIPS_GOT_PAGE, /* type */ |
| 356 | 0, /* rightshift */ |
| 357 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 358 | 16, /* bitsize */ |
| 359 | false, /* pc_relative */ |
| 360 | 0, /* bitpos */ |
| 361 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 362 | bfd_elf_generic_reloc, /* special_function */ |
| 363 | "R_MIPS_GOT_PAGE", /* name */ |
| 364 | true, /* partial_inplace */ |
| 365 | 0x0000ffff, /* src_mask */ |
| 366 | 0x0000ffff, /* dst_mask */ |
| 367 | false), /* pcrel_offset */ |
| 368 | |
| 369 | /* Offset from page pointer in the global offset table. */ |
| 370 | /* FIXME: Not handled correctly. */ |
| 371 | HOWTO (R_MIPS_GOT_OFST, /* type */ |
| 372 | 0, /* rightshift */ |
| 373 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 374 | 16, /* bitsize */ |
| 375 | false, /* pc_relative */ |
| 376 | 0, /* bitpos */ |
| 377 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 378 | bfd_elf_generic_reloc, /* special_function */ |
| 379 | "R_MIPS_GOT_OFST", /* name */ |
| 380 | true, /* partial_inplace */ |
| 381 | 0x0000ffff, /* src_mask */ |
| 382 | 0x0000ffff, /* dst_mask */ |
| 383 | false), /* pcrel_offset */ |
| 384 | |
| 385 | /* High 16 bits of displacement in global offset table. */ |
| 386 | /* FIXME: Not handled correctly. */ |
| 387 | HOWTO (R_MIPS_GOT_HI16, /* type */ |
| 388 | 0, /* rightshift */ |
| 389 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 390 | 16, /* bitsize */ |
| 391 | false, /* pc_relative */ |
| 392 | 0, /* bitpos */ |
| 393 | complain_overflow_dont, /* complain_on_overflow */ |
| 394 | bfd_elf_generic_reloc, /* special_function */ |
| 395 | "R_MIPS_GOT_HI16", /* name */ |
| 396 | true, /* partial_inplace */ |
| 397 | 0x0000ffff, /* src_mask */ |
| 398 | 0x0000ffff, /* dst_mask */ |
| 399 | false), /* pcrel_offset */ |
| 400 | |
| 401 | /* Low 16 bits of displacement in global offset table. */ |
| 402 | /* FIXME: Not handled correctly. */ |
| 403 | HOWTO (R_MIPS_GOT_LO16, /* type */ |
| 404 | 0, /* rightshift */ |
| 405 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 406 | 16, /* bitsize */ |
| 407 | false, /* pc_relative */ |
| 408 | 0, /* bitpos */ |
| 409 | complain_overflow_dont, /* complain_on_overflow */ |
| 410 | bfd_elf_generic_reloc, /* special_function */ |
| 411 | "R_MIPS_GOT_LO16", /* name */ |
| 412 | true, /* partial_inplace */ |
| 413 | 0x0000ffff, /* src_mask */ |
| 414 | 0x0000ffff, /* dst_mask */ |
| 415 | false), /* pcrel_offset */ |
| 416 | |
| 417 | /* 64 bit substraction. */ |
| 418 | /* FIXME: Not handled correctly. */ |
| 419 | HOWTO (R_MIPS_SUB, /* type */ |
| 420 | 0, /* rightshift */ |
| 421 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 422 | 64, /* bitsize */ |
| 423 | false, /* pc_relative */ |
| 424 | 0, /* bitpos */ |
| 425 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 426 | bfd_elf_generic_reloc, /* special_function */ |
| 427 | "R_MIPS_SUB", /* name */ |
| 428 | true, /* partial_inplace */ |
| 429 | MINUS_ONE, /* src_mask */ |
| 430 | MINUS_ONE, /* dst_mask */ |
| 431 | false), /* pcrel_offset */ |
| 432 | |
| 433 | /* Insert the addend as an instruction. */ |
| 434 | /* FIXME: Not handled correctly. */ |
| 435 | HOWTO (R_MIPS_INSERT_A, /* type */ |
| 436 | 0, /* rightshift */ |
| 437 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 438 | 0, /* bitsize */ |
| 439 | false, /* pc_relative */ |
| 440 | 0, /* bitpos */ |
| 441 | complain_overflow_dont, /* complain_on_overflow */ |
| 442 | bfd_elf_generic_reloc, /* special_function */ |
| 443 | "R_MIPS_INSERT_A", /* name */ |
| 444 | false, /* partial_inplace */ |
| 445 | 0, /* src_mask */ |
| 446 | 0, /* dst_mask */ |
| 447 | false), /* pcrel_offset */ |
| 448 | |
| 449 | /* Insert the addend as an instruction, and change all relocations |
| 450 | to refer to the old instruction at the address. */ |
| 451 | /* FIXME: Not handled correctly. */ |
| 452 | HOWTO (R_MIPS_INSERT_B, /* type */ |
| 453 | 0, /* rightshift */ |
| 454 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 455 | 0, /* bitsize */ |
| 456 | false, /* pc_relative */ |
| 457 | 0, /* bitpos */ |
| 458 | complain_overflow_dont, /* complain_on_overflow */ |
| 459 | bfd_elf_generic_reloc, /* special_function */ |
| 460 | "R_MIPS_INSERT_B", /* name */ |
| 461 | false, /* partial_inplace */ |
| 462 | 0, /* src_mask */ |
| 463 | 0, /* dst_mask */ |
| 464 | false), /* pcrel_offset */ |
| 465 | |
| 466 | /* Delete a 32 bit instruction. */ |
| 467 | /* FIXME: Not handled correctly. */ |
| 468 | HOWTO (R_MIPS_DELETE, /* type */ |
| 469 | 0, /* rightshift */ |
| 470 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 471 | 0, /* bitsize */ |
| 472 | false, /* pc_relative */ |
| 473 | 0, /* bitpos */ |
| 474 | complain_overflow_dont, /* complain_on_overflow */ |
| 475 | bfd_elf_generic_reloc, /* special_function */ |
| 476 | "R_MIPS_DELETE", /* name */ |
| 477 | false, /* partial_inplace */ |
| 478 | 0, /* src_mask */ |
| 479 | 0, /* dst_mask */ |
| 480 | false), /* pcrel_offset */ |
| 481 | |
| 482 | /* Get the higher value of a 64 bit addend. */ |
| 483 | /* FIXME: Not handled correctly. */ |
| 484 | HOWTO (R_MIPS_HIGHER, /* type */ |
| 485 | 0, /* rightshift */ |
| 486 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 487 | 16, /* bitsize */ |
| 488 | false, /* pc_relative */ |
| 489 | 0, /* bitpos */ |
| 490 | complain_overflow_dont, /* complain_on_overflow */ |
| 491 | bfd_elf_generic_reloc, /* special_function */ |
| 492 | "R_MIPS_HIGHER", /* name */ |
| 493 | true, /* partial_inplace */ |
| 494 | 0xffff, /* src_mask */ |
| 495 | 0xffff, /* dst_mask */ |
| 496 | false), /* pcrel_offset */ |
| 497 | |
| 498 | /* Get the highest value of a 64 bit addend. */ |
| 499 | /* FIXME: Not handled correctly. */ |
| 500 | HOWTO (R_MIPS_HIGHEST, /* type */ |
| 501 | 0, /* rightshift */ |
| 502 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 503 | 16, /* bitsize */ |
| 504 | false, /* pc_relative */ |
| 505 | 0, /* bitpos */ |
| 506 | complain_overflow_dont, /* complain_on_overflow */ |
| 507 | bfd_elf_generic_reloc, /* special_function */ |
| 508 | "R_MIPS_HIGHEST", /* name */ |
| 509 | true, /* partial_inplace */ |
| 510 | 0xffff, /* src_mask */ |
| 511 | 0xffff, /* dst_mask */ |
| 512 | false), /* pcrel_offset */ |
| 513 | |
| 514 | /* High 16 bits of displacement in global offset table. */ |
| 515 | /* FIXME: Not handled correctly. */ |
| 516 | HOWTO (R_MIPS_CALL_HI16, /* type */ |
| 517 | 0, /* rightshift */ |
| 518 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 519 | 16, /* bitsize */ |
| 520 | false, /* pc_relative */ |
| 521 | 0, /* bitpos */ |
| 522 | complain_overflow_dont, /* complain_on_overflow */ |
| 523 | bfd_elf_generic_reloc, /* special_function */ |
| 524 | "R_MIPS_CALL_HI16", /* name */ |
| 525 | true, /* partial_inplace */ |
| 526 | 0x0000ffff, /* src_mask */ |
| 527 | 0x0000ffff, /* dst_mask */ |
| 528 | false), /* pcrel_offset */ |
| 529 | |
| 530 | /* Low 16 bits of displacement in global offset table. */ |
| 531 | /* FIXME: Not handled correctly. */ |
| 532 | HOWTO (R_MIPS_CALL_LO16, /* type */ |
| 533 | 0, /* rightshift */ |
| 534 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 535 | 16, /* bitsize */ |
| 536 | false, /* pc_relative */ |
| 537 | 0, /* bitpos */ |
| 538 | complain_overflow_dont, /* complain_on_overflow */ |
| 539 | bfd_elf_generic_reloc, /* special_function */ |
| 540 | "R_MIPS_CALL_LO16", /* name */ |
| 541 | true, /* partial_inplace */ |
| 542 | 0x0000ffff, /* src_mask */ |
| 543 | 0x0000ffff, /* dst_mask */ |
| 544 | false), /* pcrel_offset */ |
| 545 | |
| 546 | /* I'm not sure what the remaining relocs are, but they are defined |
| 547 | on Irix 6. */ |
| 548 | |
| 549 | HOWTO (R_MIPS_SCN_DISP, /* type */ |
| 550 | 0, /* rightshift */ |
| 551 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 552 | 0, /* bitsize */ |
| 553 | false, /* pc_relative */ |
| 554 | 0, /* bitpos */ |
| 555 | complain_overflow_dont, /* complain_on_overflow */ |
| 556 | bfd_elf_generic_reloc, /* special_function */ |
| 557 | "R_MIPS_SCN_DISP", /* name */ |
| 558 | false, /* partial_inplace */ |
| 559 | 0, /* src_mask */ |
| 560 | 0, /* dst_mask */ |
| 561 | false), /* pcrel_offset */ |
| 562 | |
| 563 | HOWTO (R_MIPS_REL16, /* type */ |
| 564 | 0, /* rightshift */ |
| 565 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 566 | 0, /* bitsize */ |
| 567 | false, /* pc_relative */ |
| 568 | 0, /* bitpos */ |
| 569 | complain_overflow_dont, /* complain_on_overflow */ |
| 570 | bfd_elf_generic_reloc, /* special_function */ |
| 571 | "R_MIPS_REL16", /* name */ |
| 572 | false, /* partial_inplace */ |
| 573 | 0, /* src_mask */ |
| 574 | 0, /* dst_mask */ |
| 575 | false), /* pcrel_offset */ |
| 576 | |
| 577 | HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */ |
| 578 | 0, /* rightshift */ |
| 579 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 580 | 0, /* bitsize */ |
| 581 | false, /* pc_relative */ |
| 582 | 0, /* bitpos */ |
| 583 | complain_overflow_dont, /* complain_on_overflow */ |
| 584 | bfd_elf_generic_reloc, /* special_function */ |
| 585 | "R_MIPS_ADD_IMMEDIATE", /* name */ |
| 586 | false, /* partial_inplace */ |
| 587 | 0, /* src_mask */ |
| 588 | 0, /* dst_mask */ |
| 589 | false), /* pcrel_offset */ |
| 590 | |
| 591 | HOWTO (R_MIPS_PJUMP, /* type */ |
| 592 | 0, /* rightshift */ |
| 593 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 594 | 0, /* bitsize */ |
| 595 | false, /* pc_relative */ |
| 596 | 0, /* bitpos */ |
| 597 | complain_overflow_dont, /* complain_on_overflow */ |
| 598 | bfd_elf_generic_reloc, /* special_function */ |
| 599 | "R_MIPS_PJUMP", /* name */ |
| 600 | false, /* partial_inplace */ |
| 601 | 0, /* src_mask */ |
| 602 | 0, /* dst_mask */ |
| 603 | false), /* pcrel_offset */ |
| 604 | |
| 605 | HOWTO (R_MIPS_RELGOT, /* type */ |
| 606 | 0, /* rightshift */ |
| 607 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 608 | 0, /* bitsize */ |
| 609 | false, /* pc_relative */ |
| 610 | 0, /* bitpos */ |
| 611 | complain_overflow_dont, /* complain_on_overflow */ |
| 612 | bfd_elf_generic_reloc, /* special_function */ |
| 613 | "R_MIPS_RELGOT", /* name */ |
| 614 | false, /* partial_inplace */ |
| 615 | 0, /* src_mask */ |
| 616 | 0, /* dst_mask */ |
| 617 | false) /* pcrel_offset */ |
| 618 | }; |
| 619 | |
| 620 | /* The relocation table used for SHT_RELA sections. */ |
| 621 | |
| 622 | static reloc_howto_type mips_elf64_howto_table_rela[] = |
| 623 | { |
| 624 | /* No relocation. */ |
| 625 | HOWTO (R_MIPS_NONE, /* type */ |
| 626 | 0, /* rightshift */ |
| 627 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 628 | 0, /* bitsize */ |
| 629 | false, /* pc_relative */ |
| 630 | 0, /* bitpos */ |
| 631 | complain_overflow_dont, /* complain_on_overflow */ |
| 632 | bfd_elf_generic_reloc, /* special_function */ |
| 633 | "R_MIPS_NONE", /* name */ |
| 634 | false, /* partial_inplace */ |
| 635 | 0, /* src_mask */ |
| 636 | 0, /* dst_mask */ |
| 637 | false), /* pcrel_offset */ |
| 638 | |
| 639 | /* 16 bit relocation. */ |
| 640 | HOWTO (R_MIPS_16, /* type */ |
| 641 | 0, /* rightshift */ |
| 642 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 643 | 16, /* bitsize */ |
| 644 | false, /* pc_relative */ |
| 645 | 0, /* bitpos */ |
| 646 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 647 | bfd_elf_generic_reloc, /* special_function */ |
| 648 | "R_MIPS_16", /* name */ |
| 649 | true, /* partial_inplace */ |
| 650 | 0, /* src_mask */ |
| 651 | 0xffff, /* dst_mask */ |
| 652 | false), /* pcrel_offset */ |
| 653 | |
| 654 | /* 32 bit relocation. */ |
| 655 | HOWTO (R_MIPS_32, /* type */ |
| 656 | 0, /* rightshift */ |
| 657 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 658 | 32, /* bitsize */ |
| 659 | false, /* pc_relative */ |
| 660 | 0, /* bitpos */ |
| 661 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 662 | bfd_elf_generic_reloc, /* special_function */ |
| 663 | "R_MIPS_32", /* name */ |
| 664 | true, /* partial_inplace */ |
| 665 | 0, /* src_mask */ |
| 666 | 0xffffffff, /* dst_mask */ |
| 667 | false), /* pcrel_offset */ |
| 668 | |
| 669 | /* 32 bit symbol relative relocation. */ |
| 670 | HOWTO (R_MIPS_REL32, /* type */ |
| 671 | 0, /* rightshift */ |
| 672 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 673 | 32, /* bitsize */ |
| 674 | false, /* pc_relative */ |
| 675 | 0, /* bitpos */ |
| 676 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 677 | bfd_elf_generic_reloc, /* special_function */ |
| 678 | "R_MIPS_REL32", /* name */ |
| 679 | true, /* partial_inplace */ |
| 680 | 0, /* src_mask */ |
| 681 | 0xffffffff, /* dst_mask */ |
| 682 | false), /* pcrel_offset */ |
| 683 | |
| 684 | /* 26 bit branch address. */ |
| 685 | HOWTO (R_MIPS_26, /* type */ |
| 686 | 2, /* rightshift */ |
| 687 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 688 | 26, /* bitsize */ |
| 689 | false, /* pc_relative */ |
| 690 | 0, /* bitpos */ |
| 691 | complain_overflow_dont, /* complain_on_overflow */ |
| 692 | /* This needs complex overflow |
| 693 | detection, because the upper four |
| 694 | bits must match the PC. */ |
| 695 | bfd_elf_generic_reloc, /* special_function */ |
| 696 | "R_MIPS_26", /* name */ |
| 697 | true, /* partial_inplace */ |
| 698 | 0, /* src_mask */ |
| 699 | 0x3ffffff, /* dst_mask */ |
| 700 | false), /* pcrel_offset */ |
| 701 | |
| 702 | /* High 16 bits of symbol value. */ |
| 703 | HOWTO (R_MIPS_HI16, /* type */ |
| 704 | 0, /* rightshift */ |
| 705 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 706 | 16, /* bitsize */ |
| 707 | false, /* pc_relative */ |
| 708 | 0, /* bitpos */ |
| 709 | complain_overflow_dont, /* complain_on_overflow */ |
| 710 | bfd_elf_generic_reloc, /* special_function */ |
| 711 | "R_MIPS_HI16", /* name */ |
| 712 | true, /* partial_inplace */ |
| 713 | 0, /* src_mask */ |
| 714 | 0xffff, /* dst_mask */ |
| 715 | false), /* pcrel_offset */ |
| 716 | |
| 717 | /* Low 16 bits of symbol value. */ |
| 718 | HOWTO (R_MIPS_LO16, /* type */ |
| 719 | 0, /* rightshift */ |
| 720 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 721 | 16, /* bitsize */ |
| 722 | false, /* pc_relative */ |
| 723 | 0, /* bitpos */ |
| 724 | complain_overflow_dont, /* complain_on_overflow */ |
| 725 | bfd_elf_generic_reloc, /* special_function */ |
| 726 | "R_MIPS_LO16", /* name */ |
| 727 | true, /* partial_inplace */ |
| 728 | 0, /* src_mask */ |
| 729 | 0xffff, /* dst_mask */ |
| 730 | false), /* pcrel_offset */ |
| 731 | |
| 732 | /* GP relative reference. */ |
| 733 | HOWTO (R_MIPS_GPREL16, /* type */ |
| 734 | 0, /* rightshift */ |
| 735 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 736 | 16, /* bitsize */ |
| 737 | false, /* pc_relative */ |
| 738 | 0, /* bitpos */ |
| 739 | complain_overflow_signed, /* complain_on_overflow */ |
| 740 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 741 | "R_MIPS_GPREL16", /* name */ |
| 742 | true, /* partial_inplace */ |
| 743 | 0, /* src_mask */ |
| 744 | 0xffff, /* dst_mask */ |
| 745 | false), /* pcrel_offset */ |
| 746 | |
| 747 | /* Reference to literal section. */ |
| 748 | HOWTO (R_MIPS_LITERAL, /* type */ |
| 749 | 0, /* rightshift */ |
| 750 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 751 | 16, /* bitsize */ |
| 752 | false, /* pc_relative */ |
| 753 | 0, /* bitpos */ |
| 754 | complain_overflow_signed, /* complain_on_overflow */ |
| 755 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 756 | "R_MIPS_LITERAL", /* name */ |
| 757 | true, /* partial_inplace */ |
| 758 | 0, /* src_mask */ |
| 759 | 0xffff, /* dst_mask */ |
| 760 | false), /* pcrel_offset */ |
| 761 | |
| 762 | /* Reference to global offset table. */ |
| 763 | /* FIXME: This is not handled correctly. */ |
| 764 | HOWTO (R_MIPS_GOT16, /* type */ |
| 765 | 0, /* rightshift */ |
| 766 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 767 | 16, /* bitsize */ |
| 768 | false, /* pc_relative */ |
| 769 | 0, /* bitpos */ |
| 770 | complain_overflow_signed, /* complain_on_overflow */ |
| 771 | bfd_elf_generic_reloc, /* special_function */ |
| 772 | "R_MIPS_GOT16", /* name */ |
| 773 | false, /* partial_inplace */ |
| 774 | 0, /* src_mask */ |
| 775 | 0xffff, /* dst_mask */ |
| 776 | false), /* pcrel_offset */ |
| 777 | |
| 778 | /* 16 bit PC relative reference. */ |
| 779 | HOWTO (R_MIPS_PC16, /* type */ |
| 780 | 0, /* rightshift */ |
| 781 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 782 | 16, /* bitsize */ |
| 783 | true, /* pc_relative */ |
| 784 | 0, /* bitpos */ |
| 785 | complain_overflow_signed, /* complain_on_overflow */ |
| 786 | bfd_elf_generic_reloc, /* special_function */ |
| 787 | "R_MIPS_PC16", /* name */ |
| 788 | true, /* partial_inplace */ |
| 789 | 0, /* src_mask */ |
| 790 | 0xffff, /* dst_mask */ |
| 791 | false), /* pcrel_offset */ |
| 792 | |
| 793 | /* 16 bit call through global offset table. */ |
| 794 | /* FIXME: This is not handled correctly. */ |
| 795 | HOWTO (R_MIPS_CALL16, /* type */ |
| 796 | 0, /* rightshift */ |
| 797 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 798 | 16, /* bitsize */ |
| 799 | false, /* pc_relative */ |
| 800 | 0, /* bitpos */ |
| 801 | complain_overflow_signed, /* complain_on_overflow */ |
| 802 | bfd_elf_generic_reloc, /* special_function */ |
| 803 | "R_MIPS_CALL16", /* name */ |
| 804 | false, /* partial_inplace */ |
| 805 | 0, /* src_mask */ |
| 806 | 0xffff, /* dst_mask */ |
| 807 | false), /* pcrel_offset */ |
| 808 | |
| 809 | /* 32 bit GP relative reference. */ |
| 810 | HOWTO (R_MIPS_GPREL32, /* type */ |
| 811 | 0, /* rightshift */ |
| 812 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 813 | 32, /* bitsize */ |
| 814 | false, /* pc_relative */ |
| 815 | 0, /* bitpos */ |
| 816 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 817 | _bfd_mips_elf_gprel32_reloc, /* special_function */ |
| 818 | "R_MIPS_GPREL32", /* name */ |
| 819 | true, /* partial_inplace */ |
| 820 | 0, /* src_mask */ |
| 821 | 0xffffffff, /* dst_mask */ |
| 822 | false), /* pcrel_offset */ |
| 823 | |
| 824 | { 13 }, |
| 825 | { 14 }, |
| 826 | { 15 }, |
| 827 | |
| 828 | /* A 5 bit shift field. */ |
| 829 | HOWTO (R_MIPS_SHIFT5, /* type */ |
| 830 | 0, /* rightshift */ |
| 831 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 832 | 5, /* bitsize */ |
| 833 | false, /* pc_relative */ |
| 834 | 6, /* bitpos */ |
| 835 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 836 | bfd_elf_generic_reloc, /* special_function */ |
| 837 | "R_MIPS_SHIFT5", /* name */ |
| 838 | true, /* partial_inplace */ |
| 839 | 0, /* src_mask */ |
| 840 | 0x000007c0, /* dst_mask */ |
| 841 | false), /* pcrel_offset */ |
| 842 | |
| 843 | /* A 6 bit shift field. */ |
| 844 | /* FIXME: This is not handled correctly; a special function is |
| 845 | needed to put the most significant bit in the right place. */ |
| 846 | HOWTO (R_MIPS_SHIFT6, /* type */ |
| 847 | 0, /* rightshift */ |
| 848 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 849 | 6, /* bitsize */ |
| 850 | false, /* pc_relative */ |
| 851 | 6, /* bitpos */ |
| 852 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 853 | bfd_elf_generic_reloc, /* special_function */ |
| 854 | "R_MIPS_SHIFT6", /* name */ |
| 855 | true, /* partial_inplace */ |
| 856 | 0, /* src_mask */ |
| 857 | 0x000007c4, /* dst_mask */ |
| 858 | false), /* pcrel_offset */ |
| 859 | |
| 860 | /* 64 bit relocation. */ |
| 861 | HOWTO (R_MIPS_64, /* type */ |
| 862 | 0, /* rightshift */ |
| 863 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 864 | 64, /* bitsize */ |
| 865 | false, /* pc_relative */ |
| 866 | 0, /* bitpos */ |
| 867 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 868 | bfd_elf_generic_reloc, /* special_function */ |
| 869 | "R_MIPS_64", /* name */ |
| 870 | true, /* partial_inplace */ |
| 871 | 0, /* src_mask */ |
| 872 | MINUS_ONE, /* dst_mask */ |
| 873 | false), /* pcrel_offset */ |
| 874 | |
| 875 | /* Displacement in the global offset table. */ |
| 876 | /* FIXME: Not handled correctly. */ |
| 877 | HOWTO (R_MIPS_GOT_DISP, /* type */ |
| 878 | 0, /* rightshift */ |
| 879 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 880 | 16, /* bitsize */ |
| 881 | false, /* pc_relative */ |
| 882 | 0, /* bitpos */ |
| 883 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 884 | bfd_elf_generic_reloc, /* special_function */ |
| 885 | "R_MIPS_GOT_DISP", /* name */ |
| 886 | true, /* partial_inplace */ |
| 887 | 0, /* src_mask */ |
| 888 | 0x0000ffff, /* dst_mask */ |
| 889 | false), /* pcrel_offset */ |
| 890 | |
| 891 | /* Displacement to page pointer in the global offset table. */ |
| 892 | /* FIXME: Not handled correctly. */ |
| 893 | HOWTO (R_MIPS_GOT_PAGE, /* type */ |
| 894 | 0, /* rightshift */ |
| 895 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 896 | 16, /* bitsize */ |
| 897 | false, /* pc_relative */ |
| 898 | 0, /* bitpos */ |
| 899 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 900 | bfd_elf_generic_reloc, /* special_function */ |
| 901 | "R_MIPS_GOT_PAGE", /* name */ |
| 902 | true, /* partial_inplace */ |
| 903 | 0, /* src_mask */ |
| 904 | 0x0000ffff, /* dst_mask */ |
| 905 | false), /* pcrel_offset */ |
| 906 | |
| 907 | /* Offset from page pointer in the global offset table. */ |
| 908 | /* FIXME: Not handled correctly. */ |
| 909 | HOWTO (R_MIPS_GOT_OFST, /* type */ |
| 910 | 0, /* rightshift */ |
| 911 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 912 | 16, /* bitsize */ |
| 913 | false, /* pc_relative */ |
| 914 | 0, /* bitpos */ |
| 915 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 916 | bfd_elf_generic_reloc, /* special_function */ |
| 917 | "R_MIPS_GOT_OFST", /* name */ |
| 918 | true, /* partial_inplace */ |
| 919 | 0, /* src_mask */ |
| 920 | 0x0000ffff, /* dst_mask */ |
| 921 | false), /* pcrel_offset */ |
| 922 | |
| 923 | /* High 16 bits of displacement in global offset table. */ |
| 924 | /* FIXME: Not handled correctly. */ |
| 925 | HOWTO (R_MIPS_GOT_HI16, /* type */ |
| 926 | 0, /* rightshift */ |
| 927 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 928 | 16, /* bitsize */ |
| 929 | false, /* pc_relative */ |
| 930 | 0, /* bitpos */ |
| 931 | complain_overflow_dont, /* complain_on_overflow */ |
| 932 | bfd_elf_generic_reloc, /* special_function */ |
| 933 | "R_MIPS_GOT_HI16", /* name */ |
| 934 | true, /* partial_inplace */ |
| 935 | 0, /* src_mask */ |
| 936 | 0x0000ffff, /* dst_mask */ |
| 937 | false), /* pcrel_offset */ |
| 938 | |
| 939 | /* Low 16 bits of displacement in global offset table. */ |
| 940 | /* FIXME: Not handled correctly. */ |
| 941 | HOWTO (R_MIPS_GOT_LO16, /* type */ |
| 942 | 0, /* rightshift */ |
| 943 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 944 | 16, /* bitsize */ |
| 945 | false, /* pc_relative */ |
| 946 | 0, /* bitpos */ |
| 947 | complain_overflow_dont, /* complain_on_overflow */ |
| 948 | bfd_elf_generic_reloc, /* special_function */ |
| 949 | "R_MIPS_GOT_LO16", /* name */ |
| 950 | true, /* partial_inplace */ |
| 951 | 0, /* src_mask */ |
| 952 | 0x0000ffff, /* dst_mask */ |
| 953 | false), /* pcrel_offset */ |
| 954 | |
| 955 | /* 64 bit substraction. */ |
| 956 | /* FIXME: Not handled correctly. */ |
| 957 | HOWTO (R_MIPS_SUB, /* type */ |
| 958 | 0, /* rightshift */ |
| 959 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 960 | 64, /* bitsize */ |
| 961 | false, /* pc_relative */ |
| 962 | 0, /* bitpos */ |
| 963 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 964 | bfd_elf_generic_reloc, /* special_function */ |
| 965 | "R_MIPS_SUB", /* name */ |
| 966 | true, /* partial_inplace */ |
| 967 | 0, /* src_mask */ |
| 968 | MINUS_ONE, /* dst_mask */ |
| 969 | false), /* pcrel_offset */ |
| 970 | |
| 971 | /* Insert the addend as an instruction. */ |
| 972 | /* FIXME: Not handled correctly. */ |
| 973 | HOWTO (R_MIPS_INSERT_A, /* type */ |
| 974 | 0, /* rightshift */ |
| 975 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 976 | 0, /* bitsize */ |
| 977 | false, /* pc_relative */ |
| 978 | 0, /* bitpos */ |
| 979 | complain_overflow_dont, /* complain_on_overflow */ |
| 980 | bfd_elf_generic_reloc, /* special_function */ |
| 981 | "R_MIPS_INSERT_A", /* name */ |
| 982 | false, /* partial_inplace */ |
| 983 | 0, /* src_mask */ |
| 984 | 0, /* dst_mask */ |
| 985 | false), /* pcrel_offset */ |
| 986 | |
| 987 | /* Insert the addend as an instruction, and change all relocations |
| 988 | to refer to the old instruction at the address. */ |
| 989 | /* FIXME: Not handled correctly. */ |
| 990 | HOWTO (R_MIPS_INSERT_B, /* type */ |
| 991 | 0, /* rightshift */ |
| 992 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 993 | 0, /* bitsize */ |
| 994 | false, /* pc_relative */ |
| 995 | 0, /* bitpos */ |
| 996 | complain_overflow_dont, /* complain_on_overflow */ |
| 997 | bfd_elf_generic_reloc, /* special_function */ |
| 998 | "R_MIPS_INSERT_B", /* name */ |
| 999 | false, /* partial_inplace */ |
| 1000 | 0, /* src_mask */ |
| 1001 | 0, /* dst_mask */ |
| 1002 | false), /* pcrel_offset */ |
| 1003 | |
| 1004 | /* Delete a 32 bit instruction. */ |
| 1005 | /* FIXME: Not handled correctly. */ |
| 1006 | HOWTO (R_MIPS_DELETE, /* type */ |
| 1007 | 0, /* rightshift */ |
| 1008 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1009 | 0, /* bitsize */ |
| 1010 | false, /* pc_relative */ |
| 1011 | 0, /* bitpos */ |
| 1012 | complain_overflow_dont, /* complain_on_overflow */ |
| 1013 | bfd_elf_generic_reloc, /* special_function */ |
| 1014 | "R_MIPS_DELETE", /* name */ |
| 1015 | false, /* partial_inplace */ |
| 1016 | 0, /* src_mask */ |
| 1017 | 0, /* dst_mask */ |
| 1018 | false), /* pcrel_offset */ |
| 1019 | |
| 1020 | /* Get the higher value of a 64 bit addend. */ |
| 1021 | /* FIXME: Not handled correctly. */ |
| 1022 | HOWTO (R_MIPS_HIGHER, /* type */ |
| 1023 | 0, /* rightshift */ |
| 1024 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1025 | 16, /* bitsize */ |
| 1026 | false, /* pc_relative */ |
| 1027 | 0, /* bitpos */ |
| 1028 | complain_overflow_dont, /* complain_on_overflow */ |
| 1029 | bfd_elf_generic_reloc, /* special_function */ |
| 1030 | "R_MIPS_HIGHER", /* name */ |
| 1031 | true, /* partial_inplace */ |
| 1032 | 0, /* src_mask */ |
| 1033 | 0xffff, /* dst_mask */ |
| 1034 | false), /* pcrel_offset */ |
| 1035 | |
| 1036 | /* Get the highest value of a 64 bit addend. */ |
| 1037 | /* FIXME: Not handled correctly. */ |
| 1038 | HOWTO (R_MIPS_HIGHEST, /* type */ |
| 1039 | 0, /* rightshift */ |
| 1040 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1041 | 16, /* bitsize */ |
| 1042 | false, /* pc_relative */ |
| 1043 | 0, /* bitpos */ |
| 1044 | complain_overflow_dont, /* complain_on_overflow */ |
| 1045 | bfd_elf_generic_reloc, /* special_function */ |
| 1046 | "R_MIPS_HIGHEST", /* name */ |
| 1047 | true, /* partial_inplace */ |
| 1048 | 0, /* src_mask */ |
| 1049 | 0xffff, /* dst_mask */ |
| 1050 | false), /* pcrel_offset */ |
| 1051 | |
| 1052 | /* High 16 bits of displacement in global offset table. */ |
| 1053 | /* FIXME: Not handled correctly. */ |
| 1054 | HOWTO (R_MIPS_CALL_HI16, /* type */ |
| 1055 | 0, /* rightshift */ |
| 1056 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1057 | 16, /* bitsize */ |
| 1058 | false, /* pc_relative */ |
| 1059 | 0, /* bitpos */ |
| 1060 | complain_overflow_dont, /* complain_on_overflow */ |
| 1061 | bfd_elf_generic_reloc, /* special_function */ |
| 1062 | "R_MIPS_CALL_HI16", /* name */ |
| 1063 | true, /* partial_inplace */ |
| 1064 | 0, /* src_mask */ |
| 1065 | 0x0000ffff, /* dst_mask */ |
| 1066 | false), /* pcrel_offset */ |
| 1067 | |
| 1068 | /* Low 16 bits of displacement in global offset table. */ |
| 1069 | /* FIXME: Not handled correctly. */ |
| 1070 | HOWTO (R_MIPS_CALL_LO16, /* type */ |
| 1071 | 0, /* rightshift */ |
| 1072 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1073 | 16, /* bitsize */ |
| 1074 | false, /* pc_relative */ |
| 1075 | 0, /* bitpos */ |
| 1076 | complain_overflow_dont, /* complain_on_overflow */ |
| 1077 | bfd_elf_generic_reloc, /* special_function */ |
| 1078 | "R_MIPS_CALL_LO16", /* name */ |
| 1079 | true, /* partial_inplace */ |
| 1080 | 0, /* src_mask */ |
| 1081 | 0x0000ffff, /* dst_mask */ |
| 1082 | false), /* pcrel_offset */ |
| 1083 | |
| 1084 | /* I'm not sure what the remaining relocs are, but they are defined |
| 1085 | on Irix 6. */ |
| 1086 | |
| 1087 | HOWTO (R_MIPS_SCN_DISP, /* type */ |
| 1088 | 0, /* rightshift */ |
| 1089 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1090 | 0, /* bitsize */ |
| 1091 | false, /* pc_relative */ |
| 1092 | 0, /* bitpos */ |
| 1093 | complain_overflow_dont, /* complain_on_overflow */ |
| 1094 | bfd_elf_generic_reloc, /* special_function */ |
| 1095 | "R_MIPS_SCN_DISP", /* name */ |
| 1096 | false, /* partial_inplace */ |
| 1097 | 0, /* src_mask */ |
| 1098 | 0, /* dst_mask */ |
| 1099 | false), /* pcrel_offset */ |
| 1100 | |
| 1101 | HOWTO (R_MIPS_REL16, /* type */ |
| 1102 | 0, /* rightshift */ |
| 1103 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1104 | 0, /* bitsize */ |
| 1105 | false, /* pc_relative */ |
| 1106 | 0, /* bitpos */ |
| 1107 | complain_overflow_dont, /* complain_on_overflow */ |
| 1108 | bfd_elf_generic_reloc, /* special_function */ |
| 1109 | "R_MIPS_REL16", /* name */ |
| 1110 | false, /* partial_inplace */ |
| 1111 | 0, /* src_mask */ |
| 1112 | 0, /* dst_mask */ |
| 1113 | false), /* pcrel_offset */ |
| 1114 | |
| 1115 | HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */ |
| 1116 | 0, /* rightshift */ |
| 1117 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1118 | 0, /* bitsize */ |
| 1119 | false, /* pc_relative */ |
| 1120 | 0, /* bitpos */ |
| 1121 | complain_overflow_dont, /* complain_on_overflow */ |
| 1122 | bfd_elf_generic_reloc, /* special_function */ |
| 1123 | "R_MIPS_ADD_IMMEDIATE", /* name */ |
| 1124 | false, /* partial_inplace */ |
| 1125 | 0, /* src_mask */ |
| 1126 | 0, /* dst_mask */ |
| 1127 | false), /* pcrel_offset */ |
| 1128 | |
| 1129 | HOWTO (R_MIPS_PJUMP, /* type */ |
| 1130 | 0, /* rightshift */ |
| 1131 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1132 | 0, /* bitsize */ |
| 1133 | false, /* pc_relative */ |
| 1134 | 0, /* bitpos */ |
| 1135 | complain_overflow_dont, /* complain_on_overflow */ |
| 1136 | bfd_elf_generic_reloc, /* special_function */ |
| 1137 | "R_MIPS_PJUMP", /* name */ |
| 1138 | false, /* partial_inplace */ |
| 1139 | 0, /* src_mask */ |
| 1140 | 0, /* dst_mask */ |
| 1141 | false), /* pcrel_offset */ |
| 1142 | |
| 1143 | HOWTO (R_MIPS_RELGOT, /* type */ |
| 1144 | 0, /* rightshift */ |
| 1145 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1146 | 0, /* bitsize */ |
| 1147 | false, /* pc_relative */ |
| 1148 | 0, /* bitpos */ |
| 1149 | complain_overflow_dont, /* complain_on_overflow */ |
| 1150 | bfd_elf_generic_reloc, /* special_function */ |
| 1151 | "R_MIPS_RELGOT", /* name */ |
| 1152 | false, /* partial_inplace */ |
| 1153 | 0, /* src_mask */ |
| 1154 | 0, /* dst_mask */ |
| 1155 | false) /* pcrel_offset */ |
| 1156 | }; |
| 1157 | |
| 1158 | /* Swap in a MIPS 64-bit Rel reloc. */ |
| 1159 | |
| 1160 | static void |
| 1161 | mips_elf64_swap_reloc_in (abfd, src, dst) |
| 1162 | bfd *abfd; |
| 1163 | const Elf64_Mips_External_Rel *src; |
| 1164 | Elf64_Mips_Internal_Rel *dst; |
| 1165 | { |
| 1166 | dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset); |
| 1167 | dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym); |
| 1168 | dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym); |
| 1169 | dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3); |
| 1170 | dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2); |
| 1171 | dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type); |
| 1172 | } |
| 1173 | |
| 1174 | /* Swap in a MIPS 64-bit Rela reloc. */ |
| 1175 | |
| 1176 | static void |
| 1177 | mips_elf64_swap_reloca_in (abfd, src, dst) |
| 1178 | bfd *abfd; |
| 1179 | const Elf64_Mips_External_Rela *src; |
| 1180 | Elf64_Mips_Internal_Rela *dst; |
| 1181 | { |
| 1182 | dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset); |
| 1183 | dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym); |
| 1184 | dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym); |
| 1185 | dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3); |
| 1186 | dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2); |
| 1187 | dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type); |
| 1188 | dst->r_addend = bfd_h_get_signed_64 (abfd, (bfd_byte *) src->r_addend); |
| 1189 | } |
| 1190 | |
| 1191 | #if 0 |
| 1192 | |
| 1193 | /* This is not currently used. */ |
| 1194 | |
| 1195 | /* Swap out a MIPS 64-bit Rel reloc. */ |
| 1196 | |
| 1197 | static void |
| 1198 | mips_elf64_swap_reloc_out (abfd, src, dst) |
| 1199 | bfd *abfd; |
| 1200 | const Elf64_Mips_Internal_Rel *src; |
| 1201 | Elf64_Mips_External_Rel *dst; |
| 1202 | { |
| 1203 | bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset); |
| 1204 | bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym); |
| 1205 | bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym); |
| 1206 | bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3); |
| 1207 | bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2); |
| 1208 | bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type); |
| 1209 | } |
| 1210 | |
| 1211 | #endif /* 0 */ |
| 1212 | |
| 1213 | /* Swap out a MIPS 64-bit Rela reloc. */ |
| 1214 | |
| 1215 | static void |
| 1216 | mips_elf64_swap_reloca_out (abfd, src, dst) |
| 1217 | bfd *abfd; |
| 1218 | const Elf64_Mips_Internal_Rela *src; |
| 1219 | Elf64_Mips_External_Rela *dst; |
| 1220 | { |
| 1221 | bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset); |
| 1222 | bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym); |
| 1223 | bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym); |
| 1224 | bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3); |
| 1225 | bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2); |
| 1226 | bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type); |
| 1227 | bfd_h_put_64 (abfd, src->r_addend, (bfd_byte *) dst->r_addend); |
| 1228 | } |
| 1229 | |
| 1230 | /* A mapping from BFD reloc types to MIPS ELF reloc types. */ |
| 1231 | |
| 1232 | struct elf_reloc_map |
| 1233 | { |
| 1234 | bfd_reloc_code_real_type bfd_reloc_val; |
| 1235 | enum elf_mips_reloc_type elf_reloc_val; |
| 1236 | }; |
| 1237 | |
| 1238 | static CONST struct elf_reloc_map mips_reloc_map[] = |
| 1239 | { |
| 1240 | { BFD_RELOC_NONE, R_MIPS_NONE, }, |
| 1241 | { BFD_RELOC_16, R_MIPS_16 }, |
| 1242 | { BFD_RELOC_32, R_MIPS_32 }, |
| 1243 | { BFD_RELOC_64, R_MIPS_64 }, |
| 1244 | { BFD_RELOC_CTOR, R_MIPS_64 }, |
| 1245 | { BFD_RELOC_32_PCREL, R_MIPS_REL32 }, |
| 1246 | { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, |
| 1247 | { BFD_RELOC_HI16_S, R_MIPS_HI16 }, |
| 1248 | { BFD_RELOC_LO16, R_MIPS_LO16 }, |
| 1249 | { BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 }, |
| 1250 | { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, |
| 1251 | { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, |
| 1252 | { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, |
| 1253 | { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, |
| 1254 | { BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 }, |
| 1255 | { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, |
| 1256 | { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, |
| 1257 | { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, |
| 1258 | { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, |
| 1259 | { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, |
| 1260 | { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, |
| 1261 | { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, |
| 1262 | { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP } |
| 1263 | }; |
| 1264 | |
| 1265 | /* Given a BFD reloc type, return a howto structure. */ |
| 1266 | |
| 1267 | static reloc_howto_type * |
| 1268 | mips_elf64_reloc_type_lookup (abfd, code) |
| 1269 | bfd *abfd; |
| 1270 | bfd_reloc_code_real_type code; |
| 1271 | { |
| 1272 | unsigned int i; |
| 1273 | |
| 1274 | for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++) |
| 1275 | { |
| 1276 | if (mips_reloc_map[i].bfd_reloc_val == code) |
| 1277 | { |
| 1278 | int v; |
| 1279 | |
| 1280 | v = (int) mips_reloc_map[i].elf_reloc_val; |
| 1281 | return &mips_elf64_howto_table_rel[v]; |
| 1282 | } |
| 1283 | } |
| 1284 | |
| 1285 | return NULL; |
| 1286 | } |
| 1287 | |
| 1288 | /* Since each entry in an SHT_REL or SHT_RELA section can represent up |
| 1289 | to three relocs, we must tell the user to allocate more space. */ |
| 1290 | |
| 1291 | static long |
| 1292 | mips_elf64_get_reloc_upper_bound (abfd, sec) |
| 1293 | bfd *abfd; |
| 1294 | asection *sec; |
| 1295 | { |
| 1296 | return (sec->reloc_count * 3 + 1) * sizeof (arelent *); |
| 1297 | } |
| 1298 | |
| 1299 | /* Read the relocations from one reloc section. */ |
| 1300 | |
| 1301 | static boolean |
| 1302 | mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, rel_hdr) |
| 1303 | bfd *abfd; |
| 1304 | asection *asect; |
| 1305 | asymbol **symbols; |
| 1306 | const Elf_Internal_Shdr *rel_hdr; |
| 1307 | { |
| 1308 | PTR allocated = NULL; |
| 1309 | bfd_byte *native_relocs; |
| 1310 | arelent *relents; |
| 1311 | arelent *relent; |
| 1312 | unsigned int count; |
| 1313 | unsigned int i; |
| 1314 | int entsize; |
| 1315 | reloc_howto_type *howto_table; |
| 1316 | |
| 1317 | allocated = (PTR) bfd_malloc (rel_hdr->sh_size); |
| 1318 | if (allocated == NULL) |
| 1319 | goto error_return; |
| 1320 | |
| 1321 | if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 |
| 1322 | || (bfd_read (allocated, 1, rel_hdr->sh_size, abfd) != rel_hdr->sh_size)) |
| 1323 | goto error_return; |
| 1324 | |
| 1325 | native_relocs = (bfd_byte *) allocated; |
| 1326 | |
| 1327 | relents = asect->relocation + asect->reloc_count; |
| 1328 | |
| 1329 | entsize = rel_hdr->sh_entsize; |
| 1330 | BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel) |
| 1331 | || entsize == sizeof (Elf64_Mips_External_Rela)); |
| 1332 | |
| 1333 | count = rel_hdr->sh_size / entsize; |
| 1334 | |
| 1335 | if (entsize == sizeof (Elf64_Mips_External_Rel)) |
| 1336 | howto_table = mips_elf64_howto_table_rel; |
| 1337 | else |
| 1338 | howto_table = mips_elf64_howto_table_rela; |
| 1339 | |
| 1340 | relent = relents; |
| 1341 | for (i = 0; i < count; i++, native_relocs += entsize) |
| 1342 | { |
| 1343 | Elf64_Mips_Internal_Rela rela; |
| 1344 | boolean used_sym, used_ssym; |
| 1345 | int ir; |
| 1346 | |
| 1347 | if (entsize == sizeof (Elf64_Mips_External_Rela)) |
| 1348 | mips_elf64_swap_reloca_in (abfd, |
| 1349 | (Elf64_Mips_External_Rela *) native_relocs, |
| 1350 | &rela); |
| 1351 | else |
| 1352 | { |
| 1353 | Elf64_Mips_Internal_Rel rel; |
| 1354 | |
| 1355 | mips_elf64_swap_reloc_in (abfd, |
| 1356 | (Elf64_Mips_External_Rel *) native_relocs, |
| 1357 | &rel); |
| 1358 | rela.r_offset = rel.r_offset; |
| 1359 | rela.r_sym = rel.r_sym; |
| 1360 | rela.r_ssym = rel.r_ssym; |
| 1361 | rela.r_type3 = rel.r_type3; |
| 1362 | rela.r_type2 = rel.r_type2; |
| 1363 | rela.r_type = rel.r_type; |
| 1364 | rela.r_addend = 0; |
| 1365 | } |
| 1366 | |
| 1367 | /* Each entry represents up to three actual relocations. */ |
| 1368 | |
| 1369 | used_sym = false; |
| 1370 | used_ssym = false; |
| 1371 | for (ir = 0; ir < 3; ir++) |
| 1372 | { |
| 1373 | enum elf_mips_reloc_type type; |
| 1374 | |
| 1375 | switch (ir) |
| 1376 | { |
| 1377 | default: |
| 1378 | abort (); |
| 1379 | case 0: |
| 1380 | type = (enum elf_mips_reloc_type) rela.r_type; |
| 1381 | break; |
| 1382 | case 1: |
| 1383 | type = (enum elf_mips_reloc_type) rela.r_type2; |
| 1384 | break; |
| 1385 | case 2: |
| 1386 | type = (enum elf_mips_reloc_type) rela.r_type3; |
| 1387 | break; |
| 1388 | } |
| 1389 | |
| 1390 | if (type == R_MIPS_NONE) |
| 1391 | { |
| 1392 | /* There are no more relocations in this entry. If this |
| 1393 | is the first entry, we need to generate a dummy |
| 1394 | relocation so that the generic linker knows that |
| 1395 | there has been a break in the sequence of relocations |
| 1396 | applying to a particular address. */ |
| 1397 | if (ir == 0) |
| 1398 | { |
| 1399 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1400 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) |
| 1401 | relent->address = rela.r_offset; |
| 1402 | else |
| 1403 | relent->address = rela.r_offset - asect->vma; |
| 1404 | relent->addend = 0; |
| 1405 | relent->howto = &howto_table[(int) R_MIPS_NONE]; |
| 1406 | ++relent; |
| 1407 | } |
| 1408 | break; |
| 1409 | } |
| 1410 | |
| 1411 | /* Some types require symbols, whereas some do not. */ |
| 1412 | switch (type) |
| 1413 | { |
| 1414 | case R_MIPS_NONE: |
| 1415 | case R_MIPS_LITERAL: |
| 1416 | case R_MIPS_INSERT_A: |
| 1417 | case R_MIPS_INSERT_B: |
| 1418 | case R_MIPS_DELETE: |
| 1419 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1420 | break; |
| 1421 | |
| 1422 | default: |
| 1423 | if (! used_sym) |
| 1424 | { |
| 1425 | if (rela.r_sym == 0) |
| 1426 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1427 | else |
| 1428 | { |
| 1429 | asymbol **ps, *s; |
| 1430 | |
| 1431 | ps = symbols + rela.r_sym - 1; |
| 1432 | s = *ps; |
| 1433 | if ((s->flags & BSF_SECTION_SYM) == 0) |
| 1434 | relent->sym_ptr_ptr = ps; |
| 1435 | else |
| 1436 | relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; |
| 1437 | } |
| 1438 | |
| 1439 | used_sym = true; |
| 1440 | } |
| 1441 | else if (! used_ssym) |
| 1442 | { |
| 1443 | switch (rela.r_ssym) |
| 1444 | { |
| 1445 | case RSS_UNDEF: |
| 1446 | relent->sym_ptr_ptr = |
| 1447 | bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1448 | break; |
| 1449 | |
| 1450 | case RSS_GP: |
| 1451 | case RSS_GP0: |
| 1452 | case RSS_LOC: |
| 1453 | /* FIXME: I think these need to be handled using |
| 1454 | special howto structures. */ |
| 1455 | BFD_ASSERT (0); |
| 1456 | break; |
| 1457 | |
| 1458 | default: |
| 1459 | BFD_ASSERT (0); |
| 1460 | break; |
| 1461 | } |
| 1462 | |
| 1463 | used_ssym = true; |
| 1464 | } |
| 1465 | else |
| 1466 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1467 | |
| 1468 | break; |
| 1469 | } |
| 1470 | |
| 1471 | /* The address of an ELF reloc is section relative for an |
| 1472 | object file, and absolute for an executable file or |
| 1473 | shared library. The address of a BFD reloc is always |
| 1474 | section relative. */ |
| 1475 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) |
| 1476 | relent->address = rela.r_offset; |
| 1477 | else |
| 1478 | relent->address = rela.r_offset - asect->vma; |
| 1479 | |
| 1480 | relent->addend = rela.r_addend; |
| 1481 | |
| 1482 | relent->howto = &howto_table[(int) type]; |
| 1483 | |
| 1484 | ++relent; |
| 1485 | } |
| 1486 | } |
| 1487 | |
| 1488 | asect->reloc_count += relent - relents; |
| 1489 | |
| 1490 | if (allocated != NULL) |
| 1491 | free (allocated); |
| 1492 | |
| 1493 | return true; |
| 1494 | |
| 1495 | error_return: |
| 1496 | if (allocated != NULL) |
| 1497 | free (allocated); |
| 1498 | return false; |
| 1499 | } |
| 1500 | |
| 1501 | /* Read the relocations. On Irix 6, there can be two reloc sections |
| 1502 | associated with a single data section. */ |
| 1503 | |
| 1504 | static boolean |
| 1505 | mips_elf64_slurp_reloc_table (abfd, asect, symbols, dynamic) |
| 1506 | bfd *abfd; |
| 1507 | asection *asect; |
| 1508 | asymbol **symbols; |
| 1509 | boolean dynamic; |
| 1510 | { |
| 1511 | struct bfd_elf_section_data * const d = elf_section_data (asect); |
| 1512 | |
| 1513 | if (dynamic) |
| 1514 | { |
| 1515 | bfd_set_error (bfd_error_invalid_operation); |
| 1516 | return false; |
| 1517 | } |
| 1518 | |
| 1519 | if (asect->relocation != NULL |
| 1520 | || (asect->flags & SEC_RELOC) == 0 |
| 1521 | || asect->reloc_count == 0) |
| 1522 | return true; |
| 1523 | |
| 1524 | /* Allocate space for 3 arelent structures for each Rel structure. */ |
| 1525 | asect->relocation = ((arelent *) |
| 1526 | bfd_alloc (abfd, |
| 1527 | asect->reloc_count * 3 * sizeof (arelent))); |
| 1528 | if (asect->relocation == NULL) |
| 1529 | return false; |
| 1530 | |
| 1531 | /* The slurp_one_reloc_table routine increments reloc_count. */ |
| 1532 | asect->reloc_count = 0; |
| 1533 | |
| 1534 | if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, &d->rel_hdr)) |
| 1535 | return false; |
| 1536 | if (d->rel_hdr2 != NULL) |
| 1537 | { |
| 1538 | if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, |
| 1539 | d->rel_hdr2)) |
| 1540 | return false; |
| 1541 | } |
| 1542 | |
| 1543 | return true; |
| 1544 | } |
| 1545 | |
| 1546 | /* Write out the relocations. */ |
| 1547 | |
| 1548 | static void |
| 1549 | mips_elf64_write_relocs (abfd, sec, data) |
| 1550 | bfd *abfd; |
| 1551 | asection *sec; |
| 1552 | PTR data; |
| 1553 | { |
| 1554 | boolean *failedp = (boolean *) data; |
| 1555 | unsigned int count; |
| 1556 | Elf_Internal_Shdr *rela_hdr; |
| 1557 | Elf64_Mips_External_Rela *ext_rela; |
| 1558 | unsigned int idx; |
| 1559 | asymbol *last_sym = 0; |
| 1560 | int last_sym_idx = 0; |
| 1561 | |
| 1562 | /* If we have already failed, don't do anything. */ |
| 1563 | if (*failedp) |
| 1564 | return; |
| 1565 | |
| 1566 | if ((sec->flags & SEC_RELOC) == 0) |
| 1567 | return; |
| 1568 | |
| 1569 | /* The linker backend writes the relocs out itself, and sets the |
| 1570 | reloc_count field to zero to inhibit writing them here. Also, |
| 1571 | sometimes the SEC_RELOC flag gets set even when there aren't any |
| 1572 | relocs. */ |
| 1573 | if (sec->reloc_count == 0) |
| 1574 | return; |
| 1575 | |
| 1576 | /* We can combine up to three relocs that refer to the same address |
| 1577 | if the latter relocs have no associated symbol. */ |
| 1578 | count = 0; |
| 1579 | for (idx = 0; idx < sec->reloc_count; idx++) |
| 1580 | { |
| 1581 | bfd_vma addr; |
| 1582 | unsigned int i; |
| 1583 | |
| 1584 | ++count; |
| 1585 | |
| 1586 | addr = sec->orelocation[idx]->address; |
| 1587 | for (i = 0; i < 2; i++) |
| 1588 | { |
| 1589 | arelent *r; |
| 1590 | |
| 1591 | if (idx + 1 >= sec->reloc_count) |
| 1592 | break; |
| 1593 | r = sec->orelocation[idx + 1]; |
| 1594 | if (r->address != addr |
| 1595 | || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) |
| 1596 | || (*r->sym_ptr_ptr)->value != 0) |
| 1597 | break; |
| 1598 | |
| 1599 | /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ |
| 1600 | |
| 1601 | ++idx; |
| 1602 | } |
| 1603 | } |
| 1604 | |
| 1605 | rela_hdr = &elf_section_data (sec)->rel_hdr; |
| 1606 | |
| 1607 | rela_hdr->sh_size = rela_hdr->sh_entsize * count; |
| 1608 | rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size); |
| 1609 | if (rela_hdr->contents == NULL) |
| 1610 | { |
| 1611 | *failedp = true; |
| 1612 | return; |
| 1613 | } |
| 1614 | |
| 1615 | ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents; |
| 1616 | for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++) |
| 1617 | { |
| 1618 | arelent *ptr; |
| 1619 | Elf64_Mips_Internal_Rela int_rela; |
| 1620 | asymbol *sym; |
| 1621 | int n; |
| 1622 | unsigned int i; |
| 1623 | |
| 1624 | ptr = sec->orelocation[idx]; |
| 1625 | |
| 1626 | /* The address of an ELF reloc is section relative for an object |
| 1627 | file, and absolute for an executable file or shared library. |
| 1628 | The address of a BFD reloc is always section relative. */ |
| 1629 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) |
| 1630 | int_rela.r_offset = ptr->address; |
| 1631 | else |
| 1632 | int_rela.r_offset = ptr->address + sec->vma; |
| 1633 | |
| 1634 | sym = *ptr->sym_ptr_ptr; |
| 1635 | if (sym == last_sym) |
| 1636 | n = last_sym_idx; |
| 1637 | else |
| 1638 | { |
| 1639 | last_sym = sym; |
| 1640 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); |
| 1641 | if (n < 0) |
| 1642 | { |
| 1643 | *failedp = true; |
| 1644 | return; |
| 1645 | } |
| 1646 | last_sym_idx = n; |
| 1647 | } |
| 1648 | |
| 1649 | int_rela.r_sym = n; |
| 1650 | |
| 1651 | int_rela.r_addend = ptr->addend; |
| 1652 | |
| 1653 | int_rela.r_ssym = RSS_UNDEF; |
| 1654 | |
| 1655 | if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec |
| 1656 | && ! _bfd_elf_validate_reloc (abfd, ptr)) |
| 1657 | { |
| 1658 | *failedp = true; |
| 1659 | return; |
| 1660 | } |
| 1661 | |
| 1662 | int_rela.r_type = ptr->howto->type; |
| 1663 | int_rela.r_type2 = (int) R_MIPS_NONE; |
| 1664 | int_rela.r_type3 = (int) R_MIPS_NONE; |
| 1665 | |
| 1666 | for (i = 0; i < 2; i++) |
| 1667 | { |
| 1668 | arelent *r; |
| 1669 | |
| 1670 | if (idx + 1 >= sec->reloc_count) |
| 1671 | break; |
| 1672 | r = sec->orelocation[idx + 1]; |
| 1673 | if (r->address != ptr->address |
| 1674 | || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) |
| 1675 | || (*r->sym_ptr_ptr)->value != 0) |
| 1676 | break; |
| 1677 | |
| 1678 | /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ |
| 1679 | |
| 1680 | if (i == 0) |
| 1681 | int_rela.r_type2 = r->howto->type; |
| 1682 | else |
| 1683 | int_rela.r_type3 = r->howto->type; |
| 1684 | |
| 1685 | ++idx; |
| 1686 | } |
| 1687 | |
| 1688 | mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela); |
| 1689 | } |
| 1690 | |
| 1691 | BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents |
| 1692 | == count); |
| 1693 | } |
| 1694 | \f |
| 1695 | /* Handle a 64-bit MIPS ELF specific section. */ |
| 1696 | |
| 1697 | static boolean |
| 1698 | mips_elf64_section_from_shdr (abfd, hdr, name) |
| 1699 | bfd *abfd; |
| 1700 | Elf_Internal_Shdr *hdr; |
| 1701 | char *name; |
| 1702 | { |
| 1703 | if (! _bfd_mips_elf_section_from_shdr (abfd, hdr, name)) |
| 1704 | return false; |
| 1705 | |
| 1706 | /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and |
| 1707 | set the gp value based on what we find. We may see both |
| 1708 | SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case, |
| 1709 | they should agree. */ |
| 1710 | if (hdr->sh_type == SHT_MIPS_OPTIONS) |
| 1711 | { |
| 1712 | bfd_byte *contents, *l, *lend; |
| 1713 | |
| 1714 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
| 1715 | if (contents == NULL) |
| 1716 | return false; |
| 1717 | if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents, |
| 1718 | (file_ptr) 0, hdr->sh_size)) |
| 1719 | { |
| 1720 | free (contents); |
| 1721 | return false; |
| 1722 | } |
| 1723 | l = contents; |
| 1724 | lend = contents + hdr->sh_size; |
| 1725 | while (l + sizeof (Elf_External_Options) <= lend) |
| 1726 | { |
| 1727 | Elf_Internal_Options intopt; |
| 1728 | |
| 1729 | bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, |
| 1730 | &intopt); |
| 1731 | if (intopt.kind == ODK_REGINFO) |
| 1732 | { |
| 1733 | Elf64_Internal_RegInfo intreg; |
| 1734 | |
| 1735 | bfd_mips_elf64_swap_reginfo_in |
| 1736 | (abfd, |
| 1737 | ((Elf64_External_RegInfo *) |
| 1738 | (l + sizeof (Elf_External_Options))), |
| 1739 | &intreg); |
| 1740 | elf_gp (abfd) = intreg.ri_gp_value; |
| 1741 | } |
| 1742 | l += intopt.size; |
| 1743 | } |
| 1744 | free (contents); |
| 1745 | } |
| 1746 | |
| 1747 | return true; |
| 1748 | } |
| 1749 | |
| 1750 | /* Work over a section just before writing it out. We update the GP |
| 1751 | value in the SHT_MIPS_OPTIONS section based on the value we are |
| 1752 | using. */ |
| 1753 | |
| 1754 | static boolean |
| 1755 | mips_elf64_section_processing (abfd, hdr) |
| 1756 | bfd *abfd; |
| 1757 | Elf_Internal_Shdr *hdr; |
| 1758 | { |
| 1759 | if (hdr->sh_type == SHT_MIPS_OPTIONS |
| 1760 | && hdr->bfd_section != NULL |
| 1761 | && elf_section_data (hdr->bfd_section) != NULL |
| 1762 | && elf_section_data (hdr->bfd_section)->tdata != NULL) |
| 1763 | { |
| 1764 | bfd_byte *contents, *l, *lend; |
| 1765 | |
| 1766 | /* We stored the section contents in the elf_section_data tdata |
| 1767 | field in the set_section_contents routine. We save the |
| 1768 | section contents so that we don't have to read them again. |
| 1769 | At this point we know that elf_gp is set, so we can look |
| 1770 | through the section contents to see if there is an |
| 1771 | ODK_REGINFO structure. */ |
| 1772 | |
| 1773 | contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata; |
| 1774 | l = contents; |
| 1775 | lend = contents + hdr->sh_size; |
| 1776 | while (l + sizeof (Elf_External_Options) <= lend) |
| 1777 | { |
| 1778 | Elf_Internal_Options intopt; |
| 1779 | |
| 1780 | bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, |
| 1781 | &intopt); |
| 1782 | if (intopt.kind == ODK_REGINFO) |
| 1783 | { |
| 1784 | bfd_byte buf[8]; |
| 1785 | |
| 1786 | if (bfd_seek (abfd, |
| 1787 | (hdr->sh_offset |
| 1788 | + (l - contents) |
| 1789 | + sizeof (Elf_External_Options) |
| 1790 | + (sizeof (Elf64_External_RegInfo) - 8)), |
| 1791 | SEEK_SET) == -1) |
| 1792 | return false; |
| 1793 | bfd_h_put_64 (abfd, elf_gp (abfd), buf); |
| 1794 | if (bfd_write (buf, 1, 8, abfd) != 8) |
| 1795 | return false; |
| 1796 | } |
| 1797 | l += intopt.size; |
| 1798 | } |
| 1799 | } |
| 1800 | |
| 1801 | return _bfd_mips_elf_section_processing (abfd, hdr); |
| 1802 | } |
| 1803 | \f |
| 1804 | /* Irix 6 defines a brand new archive map format, so that they can |
| 1805 | have archives more than 4 GB in size. */ |
| 1806 | |
| 1807 | /* Read an Irix 6 armap. */ |
| 1808 | |
| 1809 | static boolean |
| 1810 | mips_elf64_slurp_armap (abfd) |
| 1811 | bfd *abfd; |
| 1812 | { |
| 1813 | struct artdata *ardata = bfd_ardata (abfd); |
| 1814 | char nextname[17]; |
| 1815 | file_ptr arhdrpos; |
| 1816 | bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize; |
| 1817 | struct areltdata *mapdata; |
| 1818 | bfd_byte int_buf[8]; |
| 1819 | char *stringbase; |
| 1820 | bfd_byte *raw_armap = NULL; |
| 1821 | carsym *carsyms; |
| 1822 | |
| 1823 | ardata->symdefs = NULL; |
| 1824 | |
| 1825 | /* Get the name of the first element. */ |
| 1826 | arhdrpos = bfd_tell (abfd); |
| 1827 | i = bfd_read ((PTR) nextname, 1, 16, abfd); |
| 1828 | if (i == 0) |
| 1829 | return true; |
| 1830 | if (i != 16) |
| 1831 | return false; |
| 1832 | |
| 1833 | if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0) |
| 1834 | return false; |
| 1835 | |
| 1836 | /* Archives with traditional armaps are still permitted. */ |
| 1837 | if (strncmp (nextname, "/ ", 16) == 0) |
| 1838 | return bfd_slurp_armap (abfd); |
| 1839 | |
| 1840 | if (strncmp (nextname, "/SYM64/ ", 16) != 0) |
| 1841 | { |
| 1842 | bfd_has_map (abfd) = false; |
| 1843 | return true; |
| 1844 | } |
| 1845 | |
| 1846 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); |
| 1847 | if (mapdata == NULL) |
| 1848 | return false; |
| 1849 | parsed_size = mapdata->parsed_size; |
| 1850 | bfd_release (abfd, (PTR) mapdata); |
| 1851 | |
| 1852 | if (bfd_read (int_buf, 1, 8, abfd) != 8) |
| 1853 | { |
| 1854 | if (bfd_get_error () != bfd_error_system_call) |
| 1855 | bfd_set_error (bfd_error_malformed_archive); |
| 1856 | return false; |
| 1857 | } |
| 1858 | |
| 1859 | nsymz = bfd_getb64 (int_buf); |
| 1860 | stringsize = parsed_size - 8 * nsymz - 8; |
| 1861 | |
| 1862 | carsym_size = nsymz * sizeof (carsym); |
| 1863 | ptrsize = 8 * nsymz; |
| 1864 | |
| 1865 | ardata->symdefs = (carsym *) bfd_zalloc (abfd, carsym_size + stringsize + 1); |
| 1866 | if (ardata->symdefs == NULL) |
| 1867 | return false; |
| 1868 | carsyms = ardata->symdefs; |
| 1869 | stringbase = ((char *) ardata->symdefs) + carsym_size; |
| 1870 | |
| 1871 | raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize); |
| 1872 | if (raw_armap == NULL) |
| 1873 | goto error_return; |
| 1874 | |
| 1875 | if (bfd_read (raw_armap, 1, ptrsize, abfd) != ptrsize |
| 1876 | || bfd_read (stringbase, 1, stringsize, abfd) != stringsize) |
| 1877 | { |
| 1878 | if (bfd_get_error () != bfd_error_system_call) |
| 1879 | bfd_set_error (bfd_error_malformed_archive); |
| 1880 | goto error_return; |
| 1881 | } |
| 1882 | |
| 1883 | for (i = 0; i < nsymz; i++) |
| 1884 | { |
| 1885 | carsyms->file_offset = bfd_getb64 (raw_armap + i * 8); |
| 1886 | carsyms->name = stringbase; |
| 1887 | stringbase += strlen (stringbase) + 1; |
| 1888 | ++carsyms; |
| 1889 | } |
| 1890 | *stringbase = '\0'; |
| 1891 | |
| 1892 | ardata->symdef_count = nsymz; |
| 1893 | ardata->first_file_filepos = arhdrpos + sizeof (struct ar_hdr) + parsed_size; |
| 1894 | |
| 1895 | bfd_has_map (abfd) = true; |
| 1896 | bfd_release (abfd, raw_armap); |
| 1897 | |
| 1898 | return true; |
| 1899 | |
| 1900 | error_return: |
| 1901 | if (raw_armap != NULL) |
| 1902 | bfd_release (abfd, raw_armap); |
| 1903 | if (ardata->symdefs != NULL) |
| 1904 | bfd_release (abfd, ardata->symdefs); |
| 1905 | return false; |
| 1906 | } |
| 1907 | |
| 1908 | /* Write out an Irix 6 armap. The Irix 6 tools are supposed to be |
| 1909 | able to handle ordinary ELF armaps, but at least on Irix 6.2 the |
| 1910 | linker crashes. */ |
| 1911 | |
| 1912 | static boolean |
| 1913 | mips_elf64_write_armap (arch, elength, map, symbol_count, stridx) |
| 1914 | bfd *arch; |
| 1915 | unsigned int elength; |
| 1916 | struct orl *map; |
| 1917 | unsigned int symbol_count; |
| 1918 | int stridx; |
| 1919 | { |
| 1920 | unsigned int ranlibsize = (symbol_count * 8) + 8; |
| 1921 | unsigned int stringsize = stridx; |
| 1922 | unsigned int mapsize = stringsize + ranlibsize; |
| 1923 | file_ptr archive_member_file_ptr; |
| 1924 | bfd *current = arch->archive_head; |
| 1925 | unsigned int count; |
| 1926 | struct ar_hdr hdr; |
| 1927 | unsigned int i; |
| 1928 | int padding; |
| 1929 | bfd_byte buf[8]; |
| 1930 | |
| 1931 | padding = BFD_ALIGN (mapsize, 8) - mapsize; |
| 1932 | mapsize += padding; |
| 1933 | |
| 1934 | /* work out where the first object file will go in the archive */ |
| 1935 | archive_member_file_ptr = (mapsize |
| 1936 | + elength |
| 1937 | + sizeof (struct ar_hdr) |
| 1938 | + SARMAG); |
| 1939 | |
| 1940 | memset ((char *) (&hdr), 0, sizeof (struct ar_hdr)); |
| 1941 | strcpy (hdr.ar_name, "/SYM64/"); |
| 1942 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); |
| 1943 | sprintf (hdr.ar_date, "%ld", (long) time (NULL)); |
| 1944 | /* This, at least, is what Intel coff sets the values to.: */ |
| 1945 | sprintf ((hdr.ar_uid), "%d", 0); |
| 1946 | sprintf ((hdr.ar_gid), "%d", 0); |
| 1947 | sprintf ((hdr.ar_mode), "%-7o", (unsigned) 0); |
| 1948 | strncpy (hdr.ar_fmag, ARFMAG, 2); |
| 1949 | |
| 1950 | for (i = 0; i < sizeof (struct ar_hdr); i++) |
| 1951 | if (((char *) (&hdr))[i] == '\0') |
| 1952 | (((char *) (&hdr))[i]) = ' '; |
| 1953 | |
| 1954 | /* Write the ar header for this item and the number of symbols */ |
| 1955 | |
| 1956 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), arch) |
| 1957 | != sizeof (struct ar_hdr)) |
| 1958 | return false; |
| 1959 | |
| 1960 | bfd_putb64 (symbol_count, buf); |
| 1961 | if (bfd_write (buf, 1, 8, arch) != 8) |
| 1962 | return false; |
| 1963 | |
| 1964 | /* Two passes, first write the file offsets for each symbol - |
| 1965 | remembering that each offset is on a two byte boundary. */ |
| 1966 | |
| 1967 | /* Write out the file offset for the file associated with each |
| 1968 | symbol, and remember to keep the offsets padded out. */ |
| 1969 | |
| 1970 | current = arch->archive_head; |
| 1971 | count = 0; |
| 1972 | while (current != (bfd *) NULL && count < symbol_count) |
| 1973 | { |
| 1974 | /* For each symbol which is used defined in this object, write out |
| 1975 | the object file's address in the archive */ |
| 1976 | |
| 1977 | while (((bfd *) (map[count]).pos) == current) |
| 1978 | { |
| 1979 | bfd_putb64 (archive_member_file_ptr, buf); |
| 1980 | if (bfd_write (buf, 1, 8, arch) != 8) |
| 1981 | return false; |
| 1982 | count++; |
| 1983 | } |
| 1984 | /* Add size of this archive entry */ |
| 1985 | archive_member_file_ptr += (arelt_size (current) |
| 1986 | + sizeof (struct ar_hdr)); |
| 1987 | /* remember about the even alignment */ |
| 1988 | archive_member_file_ptr += archive_member_file_ptr % 2; |
| 1989 | current = current->next; |
| 1990 | } |
| 1991 | |
| 1992 | /* now write the strings themselves */ |
| 1993 | for (count = 0; count < symbol_count; count++) |
| 1994 | { |
| 1995 | size_t len = strlen (*map[count].name) + 1; |
| 1996 | |
| 1997 | if (bfd_write (*map[count].name, 1, len, arch) != len) |
| 1998 | return false; |
| 1999 | } |
| 2000 | |
| 2001 | /* The spec says that this should be padded to an 8 byte boundary. |
| 2002 | However, the Irix 6.2 tools do not appear to do this. */ |
| 2003 | while (padding != 0) |
| 2004 | { |
| 2005 | if (bfd_write ("", 1, 1, arch) != 1) |
| 2006 | return false; |
| 2007 | --padding; |
| 2008 | } |
| 2009 | |
| 2010 | return true; |
| 2011 | } |
| 2012 | \f |
| 2013 | /* ECOFF swapping routines. These are used when dealing with the |
| 2014 | .mdebug section, which is in the ECOFF debugging format. */ |
| 2015 | static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap = |
| 2016 | { |
| 2017 | /* Symbol table magic number. */ |
| 2018 | magicSym2, |
| 2019 | /* Alignment of debugging information. E.g., 4. */ |
| 2020 | 8, |
| 2021 | /* Sizes of external symbolic information. */ |
| 2022 | sizeof (struct hdr_ext), |
| 2023 | sizeof (struct dnr_ext), |
| 2024 | sizeof (struct pdr_ext), |
| 2025 | sizeof (struct sym_ext), |
| 2026 | sizeof (struct opt_ext), |
| 2027 | sizeof (struct fdr_ext), |
| 2028 | sizeof (struct rfd_ext), |
| 2029 | sizeof (struct ext_ext), |
| 2030 | /* Functions to swap in external symbolic data. */ |
| 2031 | ecoff_swap_hdr_in, |
| 2032 | ecoff_swap_dnr_in, |
| 2033 | ecoff_swap_pdr_in, |
| 2034 | ecoff_swap_sym_in, |
| 2035 | ecoff_swap_opt_in, |
| 2036 | ecoff_swap_fdr_in, |
| 2037 | ecoff_swap_rfd_in, |
| 2038 | ecoff_swap_ext_in, |
| 2039 | _bfd_ecoff_swap_tir_in, |
| 2040 | _bfd_ecoff_swap_rndx_in, |
| 2041 | /* Functions to swap out external symbolic data. */ |
| 2042 | ecoff_swap_hdr_out, |
| 2043 | ecoff_swap_dnr_out, |
| 2044 | ecoff_swap_pdr_out, |
| 2045 | ecoff_swap_sym_out, |
| 2046 | ecoff_swap_opt_out, |
| 2047 | ecoff_swap_fdr_out, |
| 2048 | ecoff_swap_rfd_out, |
| 2049 | ecoff_swap_ext_out, |
| 2050 | _bfd_ecoff_swap_tir_out, |
| 2051 | _bfd_ecoff_swap_rndx_out, |
| 2052 | /* Function to read in symbolic data. */ |
| 2053 | _bfd_mips_elf_read_ecoff_info |
| 2054 | }; |
| 2055 | \f |
| 2056 | /* Relocations in the 64 bit MIPS ELF ABI are more complex than in |
| 2057 | standard ELF. This structure is used to redirect the relocation |
| 2058 | handling routines. */ |
| 2059 | |
| 2060 | const struct elf_size_info mips_elf64_size_info = |
| 2061 | { |
| 2062 | sizeof (Elf64_External_Ehdr), |
| 2063 | sizeof (Elf64_External_Phdr), |
| 2064 | sizeof (Elf64_External_Shdr), |
| 2065 | sizeof (Elf64_Mips_External_Rel), |
| 2066 | sizeof (Elf64_Mips_External_Rela), |
| 2067 | sizeof (Elf64_External_Sym), |
| 2068 | sizeof (Elf64_External_Dyn), |
| 2069 | sizeof (Elf_External_Note), |
| 2070 | 64, /* arch_size */ |
| 2071 | 8, /* file_align */ |
| 2072 | ELFCLASS64, |
| 2073 | EV_CURRENT, |
| 2074 | bfd_elf64_write_out_phdrs, |
| 2075 | bfd_elf64_write_shdrs_and_ehdr, |
| 2076 | mips_elf64_write_relocs, |
| 2077 | bfd_elf64_swap_symbol_out, |
| 2078 | mips_elf64_slurp_reloc_table, |
| 2079 | bfd_elf64_slurp_symbol_table, |
| 2080 | bfd_elf64_swap_dyn_in |
| 2081 | }; |
| 2082 | |
| 2083 | #define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec |
| 2084 | #define TARGET_LITTLE_NAME "elf64-littlemips" |
| 2085 | #define TARGET_BIG_SYM bfd_elf64_bigmips_vec |
| 2086 | #define TARGET_BIG_NAME "elf64-bigmips" |
| 2087 | #define ELF_ARCH bfd_arch_mips |
| 2088 | #define ELF_MACHINE_CODE EM_MIPS |
| 2089 | #define ELF_MAXPAGESIZE 0x1000 |
| 2090 | #define elf_backend_size_info mips_elf64_size_info |
| 2091 | #define elf_backend_object_p _bfd_mips_elf_object_p |
| 2092 | #define elf_backend_section_from_shdr mips_elf64_section_from_shdr |
| 2093 | #define elf_backend_fake_sections _bfd_mips_elf_fake_sections |
| 2094 | #define elf_backend_section_from_bfd_section \ |
| 2095 | _bfd_mips_elf_section_from_bfd_section |
| 2096 | #define elf_backend_section_processing mips_elf64_section_processing |
| 2097 | #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing |
| 2098 | #define elf_backend_final_write_processing \ |
| 2099 | _bfd_mips_elf_final_write_processing |
| 2100 | #define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap |
| 2101 | |
| 2102 | #define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line |
| 2103 | #define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound |
| 2104 | #define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup |
| 2105 | #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents |
| 2106 | #define bfd_elf64_bfd_copy_private_bfd_data \ |
| 2107 | _bfd_mips_elf_copy_private_bfd_data |
| 2108 | #define bfd_elf64_bfd_merge_private_bfd_data \ |
| 2109 | _bfd_mips_elf_merge_private_bfd_data |
| 2110 | #define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags |
| 2111 | |
| 2112 | #define bfd_elf64_archive_functions |
| 2113 | #define bfd_elf64_archive_slurp_armap mips_elf64_slurp_armap |
| 2114 | #define bfd_elf64_archive_slurp_extended_name_table \ |
| 2115 | _bfd_archive_coff_slurp_extended_name_table |
| 2116 | #define bfd_elf64_archive_construct_extended_name_table \ |
| 2117 | _bfd_archive_coff_construct_extended_name_table |
| 2118 | #define bfd_elf64_archive_truncate_arname \ |
| 2119 | _bfd_archive_coff_truncate_arname |
| 2120 | #define bfd_elf64_archive_write_armap mips_elf64_write_armap |
| 2121 | #define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr |
| 2122 | #define bfd_elf64_archive_openr_next_archived_file \ |
| 2123 | _bfd_archive_coff_openr_next_archived_file |
| 2124 | #define bfd_elf64_archive_get_elt_at_index \ |
| 2125 | _bfd_archive_coff_get_elt_at_index |
| 2126 | #define bfd_elf64_archive_generic_stat_arch_elt \ |
| 2127 | _bfd_archive_coff_generic_stat_arch_elt |
| 2128 | #define bfd_elf64_archive_update_armap_timestamp \ |
| 2129 | _bfd_archive_coff_update_armap_timestamp |
| 2130 | |
| 2131 | #include "elf64-target.h" |