| 1 | /* MIPS-specific support for 64-bit ELF |
| 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001 |
| 3 | Free Software Foundation, Inc. |
| 4 | Ian Lance Taylor, Cygnus Support |
| 5 | Linker support added by Mark Mitchell, CodeSourcery, LLC. |
| 6 | <mark@codesourcery.com> |
| 7 | |
| 8 | This file is part of BFD, the Binary File Descriptor library. |
| 9 | |
| 10 | This program is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation; either version 2 of the License, or |
| 13 | (at your option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program; if not, write to the Free Software |
| 22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 23 | |
| 24 | /* This file supports the 64-bit MIPS ELF ABI. |
| 25 | |
| 26 | The MIPS 64-bit ELF ABI uses an unusual reloc format. This file |
| 27 | overrides the usual ELF reloc handling, and handles reading and |
| 28 | writing the relocations here. |
| 29 | |
| 30 | The MIPS 64-bit ELF ABI also uses an unusual archive map format. */ |
| 31 | |
| 32 | #include "bfd.h" |
| 33 | #include "sysdep.h" |
| 34 | #include "libbfd.h" |
| 35 | #include "aout/ar.h" |
| 36 | #include "bfdlink.h" |
| 37 | #include "genlink.h" |
| 38 | #include "elf-bfd.h" |
| 39 | #include "elf/mips.h" |
| 40 | |
| 41 | /* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to |
| 42 | use ECOFF. However, we support it anyhow for an easier changeover. */ |
| 43 | #include "coff/sym.h" |
| 44 | #include "coff/symconst.h" |
| 45 | #include "coff/internal.h" |
| 46 | #include "coff/ecoff.h" |
| 47 | /* The 64 bit versions of the mdebug data structures are in alpha.h. */ |
| 48 | #include "coff/alpha.h" |
| 49 | #define ECOFF_SIGNED_64 |
| 50 | #include "ecoffswap.h" |
| 51 | |
| 52 | static void mips_elf64_swap_reloc_in |
| 53 | PARAMS ((bfd *, const Elf64_Mips_External_Rel *, |
| 54 | Elf64_Mips_Internal_Rel *)); |
| 55 | static void mips_elf64_swap_reloca_in |
| 56 | PARAMS ((bfd *, const Elf64_Mips_External_Rela *, |
| 57 | Elf64_Mips_Internal_Rela *)); |
| 58 | static void mips_elf64_swap_reloc_out |
| 59 | PARAMS ((bfd *, const Elf64_Mips_Internal_Rel *, |
| 60 | Elf64_Mips_External_Rel *)); |
| 61 | static void mips_elf64_swap_reloca_out |
| 62 | PARAMS ((bfd *, const Elf64_Mips_Internal_Rela *, |
| 63 | Elf64_Mips_External_Rela *)); |
| 64 | static void mips_elf64_be_swap_reloc_in |
| 65 | PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rel *)); |
| 66 | static void mips_elf64_be_swap_reloc_out |
| 67 | PARAMS ((bfd *, const Elf_Internal_Rel *, bfd_byte *)); |
| 68 | static void mips_elf64_be_swap_reloca_in |
| 69 | PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rela *)); |
| 70 | static void mips_elf64_be_swap_reloca_out |
| 71 | PARAMS ((bfd *, const Elf_Internal_Rela *, bfd_byte *)); |
| 72 | static reloc_howto_type *mips_elf64_reloc_type_lookup |
| 73 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| 74 | static long mips_elf64_get_reloc_upper_bound PARAMS ((bfd *, asection *)); |
| 75 | static boolean mips_elf64_slurp_one_reloc_table |
| 76 | PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *)); |
| 77 | static boolean mips_elf64_slurp_reloc_table |
| 78 | PARAMS ((bfd *, asection *, asymbol **, boolean)); |
| 79 | static void mips_elf64_write_relocs PARAMS ((bfd *, asection *, PTR)); |
| 80 | static boolean mips_elf64_slurp_armap PARAMS ((bfd *)); |
| 81 | static boolean mips_elf64_write_armap |
| 82 | PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); |
| 83 | |
| 84 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
| 85 | from smaller values. Start with zero, widen, *then* decrement. */ |
| 86 | #define MINUS_ONE (((bfd_vma)0) - 1) |
| 87 | |
| 88 | /* The number of local .got entries we reserve. */ |
| 89 | #define MIPS_RESERVED_GOTNO (2) |
| 90 | |
| 91 | /* The relocation table used for SHT_REL sections. */ |
| 92 | |
| 93 | #define UNUSED_RELOC(num) { num, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } |
| 94 | |
| 95 | static reloc_howto_type mips_elf64_howto_table_rel[] = |
| 96 | { |
| 97 | /* No relocation. */ |
| 98 | HOWTO (R_MIPS_NONE, /* type */ |
| 99 | 0, /* rightshift */ |
| 100 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 101 | 0, /* bitsize */ |
| 102 | false, /* pc_relative */ |
| 103 | 0, /* bitpos */ |
| 104 | complain_overflow_dont, /* complain_on_overflow */ |
| 105 | bfd_elf_generic_reloc, /* special_function */ |
| 106 | "R_MIPS_NONE", /* name */ |
| 107 | false, /* partial_inplace */ |
| 108 | 0, /* src_mask */ |
| 109 | 0, /* dst_mask */ |
| 110 | false), /* pcrel_offset */ |
| 111 | |
| 112 | /* 16 bit relocation. */ |
| 113 | HOWTO (R_MIPS_16, /* type */ |
| 114 | 0, /* rightshift */ |
| 115 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 116 | 16, /* bitsize */ |
| 117 | false, /* pc_relative */ |
| 118 | 0, /* bitpos */ |
| 119 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 120 | bfd_elf_generic_reloc, /* special_function */ |
| 121 | "R_MIPS_16", /* name */ |
| 122 | true, /* partial_inplace */ |
| 123 | 0xffff, /* src_mask */ |
| 124 | 0xffff, /* dst_mask */ |
| 125 | false), /* pcrel_offset */ |
| 126 | |
| 127 | /* 32 bit relocation. */ |
| 128 | HOWTO (R_MIPS_32, /* type */ |
| 129 | 0, /* rightshift */ |
| 130 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 131 | 32, /* bitsize */ |
| 132 | false, /* pc_relative */ |
| 133 | 0, /* bitpos */ |
| 134 | complain_overflow_dont, /* complain_on_overflow */ |
| 135 | bfd_elf_generic_reloc, /* special_function */ |
| 136 | "R_MIPS_32", /* name */ |
| 137 | true, /* partial_inplace */ |
| 138 | 0xffffffff, /* src_mask */ |
| 139 | 0xffffffff, /* dst_mask */ |
| 140 | false), /* pcrel_offset */ |
| 141 | |
| 142 | /* 32 bit symbol relative relocation. */ |
| 143 | HOWTO (R_MIPS_REL32, /* type */ |
| 144 | 0, /* rightshift */ |
| 145 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 146 | 32, /* bitsize */ |
| 147 | false, /* pc_relative */ |
| 148 | 0, /* bitpos */ |
| 149 | complain_overflow_dont, /* complain_on_overflow */ |
| 150 | bfd_elf_generic_reloc, /* special_function */ |
| 151 | "R_MIPS_REL32", /* name */ |
| 152 | true, /* partial_inplace */ |
| 153 | 0xffffffff, /* src_mask */ |
| 154 | 0xffffffff, /* dst_mask */ |
| 155 | false), /* pcrel_offset */ |
| 156 | |
| 157 | /* 26 bit jump address. */ |
| 158 | HOWTO (R_MIPS_26, /* type */ |
| 159 | 2, /* rightshift */ |
| 160 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 161 | 26, /* bitsize */ |
| 162 | false, /* pc_relative */ |
| 163 | 0, /* bitpos */ |
| 164 | complain_overflow_dont, /* complain_on_overflow */ |
| 165 | /* This needs complex overflow |
| 166 | detection, because the upper 36 |
| 167 | bits must match the PC + 4. */ |
| 168 | bfd_elf_generic_reloc, /* special_function */ |
| 169 | "R_MIPS_26", /* name */ |
| 170 | true, /* partial_inplace */ |
| 171 | 0x3ffffff, /* src_mask */ |
| 172 | 0x3ffffff, /* dst_mask */ |
| 173 | false), /* pcrel_offset */ |
| 174 | |
| 175 | /* High 16 bits of symbol value. */ |
| 176 | HOWTO (R_MIPS_HI16, /* type */ |
| 177 | 0, /* rightshift */ |
| 178 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 179 | 16, /* bitsize */ |
| 180 | false, /* pc_relative */ |
| 181 | 0, /* bitpos */ |
| 182 | complain_overflow_dont, /* complain_on_overflow */ |
| 183 | _bfd_mips_elf_hi16_reloc, /* special_function */ |
| 184 | "R_MIPS_HI16", /* name */ |
| 185 | true, /* partial_inplace */ |
| 186 | 0xffff, /* src_mask */ |
| 187 | 0xffff, /* dst_mask */ |
| 188 | false), /* pcrel_offset */ |
| 189 | |
| 190 | /* Low 16 bits of symbol value. */ |
| 191 | HOWTO (R_MIPS_LO16, /* type */ |
| 192 | 0, /* rightshift */ |
| 193 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 194 | 16, /* bitsize */ |
| 195 | false, /* pc_relative */ |
| 196 | 0, /* bitpos */ |
| 197 | complain_overflow_dont, /* complain_on_overflow */ |
| 198 | _bfd_mips_elf_lo16_reloc, /* special_function */ |
| 199 | "R_MIPS_LO16", /* name */ |
| 200 | true, /* partial_inplace */ |
| 201 | 0xffff, /* src_mask */ |
| 202 | 0xffff, /* dst_mask */ |
| 203 | false), /* pcrel_offset */ |
| 204 | |
| 205 | /* GP relative reference. */ |
| 206 | HOWTO (R_MIPS_GPREL16, /* type */ |
| 207 | 0, /* rightshift */ |
| 208 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 209 | 16, /* bitsize */ |
| 210 | false, /* pc_relative */ |
| 211 | 0, /* bitpos */ |
| 212 | complain_overflow_signed, /* complain_on_overflow */ |
| 213 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 214 | "R_MIPS_GPREL16", /* name */ |
| 215 | true, /* partial_inplace */ |
| 216 | 0xffff, /* src_mask */ |
| 217 | 0xffff, /* dst_mask */ |
| 218 | false), /* pcrel_offset */ |
| 219 | |
| 220 | /* Reference to literal section. */ |
| 221 | HOWTO (R_MIPS_LITERAL, /* type */ |
| 222 | 0, /* rightshift */ |
| 223 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 224 | 16, /* bitsize */ |
| 225 | false, /* pc_relative */ |
| 226 | 0, /* bitpos */ |
| 227 | complain_overflow_signed, /* complain_on_overflow */ |
| 228 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 229 | "R_MIPS_LITERAL", /* name */ |
| 230 | true, /* partial_inplace */ |
| 231 | 0xffff, /* src_mask */ |
| 232 | 0xffff, /* dst_mask */ |
| 233 | false), /* pcrel_offset */ |
| 234 | |
| 235 | /* Reference to global offset table. */ |
| 236 | HOWTO (R_MIPS_GOT16, /* type */ |
| 237 | 0, /* rightshift */ |
| 238 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 239 | 16, /* bitsize */ |
| 240 | false, /* pc_relative */ |
| 241 | 0, /* bitpos */ |
| 242 | complain_overflow_signed, /* complain_on_overflow */ |
| 243 | _bfd_mips_elf_got16_reloc, /* special_function */ |
| 244 | "R_MIPS_GOT16", /* name */ |
| 245 | false, /* partial_inplace */ |
| 246 | 0, /* src_mask */ |
| 247 | 0xffff, /* dst_mask */ |
| 248 | false), /* pcrel_offset */ |
| 249 | |
| 250 | /* 16 bit PC relative reference. */ |
| 251 | HOWTO (R_MIPS_PC16, /* type */ |
| 252 | 0, /* rightshift */ |
| 253 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 254 | 16, /* bitsize */ |
| 255 | true, /* pc_relative */ |
| 256 | 0, /* bitpos */ |
| 257 | complain_overflow_signed, /* complain_on_overflow */ |
| 258 | bfd_elf_generic_reloc, /* special_function */ |
| 259 | "R_MIPS_PC16", /* name */ |
| 260 | true, /* partial_inplace */ |
| 261 | 0xffff, /* src_mask */ |
| 262 | 0xffff, /* dst_mask */ |
| 263 | false), /* pcrel_offset */ |
| 264 | |
| 265 | /* 16 bit call through global offset table. */ |
| 266 | /* FIXME: This is not handled correctly. */ |
| 267 | HOWTO (R_MIPS_CALL16, /* type */ |
| 268 | 0, /* rightshift */ |
| 269 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 270 | 16, /* bitsize */ |
| 271 | false, /* pc_relative */ |
| 272 | 0, /* bitpos */ |
| 273 | complain_overflow_signed, /* complain_on_overflow */ |
| 274 | bfd_elf_generic_reloc, /* special_function */ |
| 275 | "R_MIPS_CALL16", /* name */ |
| 276 | false, /* partial_inplace */ |
| 277 | 0, /* src_mask */ |
| 278 | 0xffff, /* dst_mask */ |
| 279 | false), /* pcrel_offset */ |
| 280 | |
| 281 | /* 32 bit GP relative reference. */ |
| 282 | HOWTO (R_MIPS_GPREL32, /* type */ |
| 283 | 0, /* rightshift */ |
| 284 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 285 | 32, /* bitsize */ |
| 286 | false, /* pc_relative */ |
| 287 | 0, /* bitpos */ |
| 288 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 289 | _bfd_mips_elf_gprel32_reloc, /* special_function */ |
| 290 | "R_MIPS_GPREL32", /* name */ |
| 291 | true, /* partial_inplace */ |
| 292 | 0xffffffff, /* src_mask */ |
| 293 | 0xffffffff, /* dst_mask */ |
| 294 | false), /* pcrel_offset */ |
| 295 | |
| 296 | UNUSED_RELOC (13), |
| 297 | UNUSED_RELOC (14), |
| 298 | UNUSED_RELOC (15), |
| 299 | |
| 300 | /* A 5 bit shift field. */ |
| 301 | HOWTO (R_MIPS_SHIFT5, /* type */ |
| 302 | 0, /* rightshift */ |
| 303 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 304 | 5, /* bitsize */ |
| 305 | false, /* pc_relative */ |
| 306 | 6, /* bitpos */ |
| 307 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 308 | bfd_elf_generic_reloc, /* special_function */ |
| 309 | "R_MIPS_SHIFT5", /* name */ |
| 310 | true, /* partial_inplace */ |
| 311 | 0x000007c0, /* src_mask */ |
| 312 | 0x000007c0, /* dst_mask */ |
| 313 | false), /* pcrel_offset */ |
| 314 | |
| 315 | /* A 6 bit shift field. */ |
| 316 | /* FIXME: This is not handled correctly; a special function is |
| 317 | needed to put the most significant bit in the right place. */ |
| 318 | HOWTO (R_MIPS_SHIFT6, /* type */ |
| 319 | 0, /* rightshift */ |
| 320 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 321 | 6, /* bitsize */ |
| 322 | false, /* pc_relative */ |
| 323 | 6, /* bitpos */ |
| 324 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 325 | bfd_elf_generic_reloc, /* special_function */ |
| 326 | "R_MIPS_SHIFT6", /* name */ |
| 327 | true, /* partial_inplace */ |
| 328 | 0x000007c4, /* src_mask */ |
| 329 | 0x000007c4, /* dst_mask */ |
| 330 | false), /* pcrel_offset */ |
| 331 | |
| 332 | /* 64 bit relocation. */ |
| 333 | HOWTO (R_MIPS_64, /* type */ |
| 334 | 0, /* rightshift */ |
| 335 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 336 | 64, /* bitsize */ |
| 337 | false, /* pc_relative */ |
| 338 | 0, /* bitpos */ |
| 339 | complain_overflow_dont, /* complain_on_overflow */ |
| 340 | bfd_elf_generic_reloc, /* special_function */ |
| 341 | "R_MIPS_64", /* name */ |
| 342 | true, /* partial_inplace */ |
| 343 | MINUS_ONE, /* src_mask */ |
| 344 | MINUS_ONE, /* dst_mask */ |
| 345 | false), /* pcrel_offset */ |
| 346 | |
| 347 | /* Displacement in the global offset table. */ |
| 348 | /* FIXME: Not handled correctly. */ |
| 349 | HOWTO (R_MIPS_GOT_DISP, /* type */ |
| 350 | 0, /* rightshift */ |
| 351 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 352 | 16, /* bitsize */ |
| 353 | false, /* pc_relative */ |
| 354 | 0, /* bitpos */ |
| 355 | complain_overflow_signed, /* complain_on_overflow */ |
| 356 | bfd_elf_generic_reloc, /* special_function */ |
| 357 | "R_MIPS_GOT_DISP", /* name */ |
| 358 | false, /* partial_inplace */ |
| 359 | 0x0000ffff, /* src_mask */ |
| 360 | 0x0000ffff, /* dst_mask */ |
| 361 | false), /* pcrel_offset */ |
| 362 | |
| 363 | /* Displacement to page pointer in the global offset table. */ |
| 364 | /* FIXME: Not handled correctly. */ |
| 365 | HOWTO (R_MIPS_GOT_PAGE, /* type */ |
| 366 | 0, /* rightshift */ |
| 367 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 368 | 16, /* bitsize */ |
| 369 | false, /* pc_relative */ |
| 370 | 0, /* bitpos */ |
| 371 | complain_overflow_signed, /* complain_on_overflow */ |
| 372 | bfd_elf_generic_reloc, /* special_function */ |
| 373 | "R_MIPS_GOT_PAGE", /* name */ |
| 374 | false, /* partial_inplace */ |
| 375 | 0x0000ffff, /* src_mask */ |
| 376 | 0x0000ffff, /* dst_mask */ |
| 377 | false), /* pcrel_offset */ |
| 378 | |
| 379 | /* Offset from page pointer in the global offset table. */ |
| 380 | /* FIXME: Not handled correctly. */ |
| 381 | HOWTO (R_MIPS_GOT_OFST, /* type */ |
| 382 | 0, /* rightshift */ |
| 383 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 384 | 16, /* bitsize */ |
| 385 | false, /* pc_relative */ |
| 386 | 0, /* bitpos */ |
| 387 | complain_overflow_signed, /* complain_on_overflow */ |
| 388 | bfd_elf_generic_reloc, /* special_function */ |
| 389 | "R_MIPS_GOT_OFST", /* name */ |
| 390 | false, /* partial_inplace */ |
| 391 | 0x0000ffff, /* src_mask */ |
| 392 | 0x0000ffff, /* dst_mask */ |
| 393 | false), /* pcrel_offset */ |
| 394 | |
| 395 | /* High 16 bits of displacement in global offset table. */ |
| 396 | /* FIXME: Not handled correctly. */ |
| 397 | HOWTO (R_MIPS_GOT_HI16, /* type */ |
| 398 | 0, /* rightshift */ |
| 399 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 400 | 16, /* bitsize */ |
| 401 | false, /* pc_relative */ |
| 402 | 0, /* bitpos */ |
| 403 | complain_overflow_dont, /* complain_on_overflow */ |
| 404 | bfd_elf_generic_reloc, /* special_function */ |
| 405 | "R_MIPS_GOT_HI16", /* name */ |
| 406 | false, /* partial_inplace */ |
| 407 | 0x0000ffff, /* src_mask */ |
| 408 | 0x0000ffff, /* dst_mask */ |
| 409 | false), /* pcrel_offset */ |
| 410 | |
| 411 | /* Low 16 bits of displacement in global offset table. */ |
| 412 | /* FIXME: Not handled correctly. */ |
| 413 | HOWTO (R_MIPS_GOT_LO16, /* type */ |
| 414 | 0, /* rightshift */ |
| 415 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 416 | 16, /* bitsize */ |
| 417 | false, /* pc_relative */ |
| 418 | 0, /* bitpos */ |
| 419 | complain_overflow_dont, /* complain_on_overflow */ |
| 420 | bfd_elf_generic_reloc, /* special_function */ |
| 421 | "R_MIPS_GOT_LO16", /* name */ |
| 422 | false, /* partial_inplace */ |
| 423 | 0x0000ffff, /* src_mask */ |
| 424 | 0x0000ffff, /* dst_mask */ |
| 425 | false), /* pcrel_offset */ |
| 426 | |
| 427 | /* 64 bit substraction. */ |
| 428 | /* FIXME: Not handled correctly. */ |
| 429 | HOWTO (R_MIPS_SUB, /* type */ |
| 430 | 0, /* rightshift */ |
| 431 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 432 | 64, /* bitsize */ |
| 433 | false, /* pc_relative */ |
| 434 | 0, /* bitpos */ |
| 435 | complain_overflow_dont, /* complain_on_overflow */ |
| 436 | bfd_elf_generic_reloc, /* special_function */ |
| 437 | "R_MIPS_SUB", /* name */ |
| 438 | true, /* partial_inplace */ |
| 439 | MINUS_ONE, /* src_mask */ |
| 440 | MINUS_ONE, /* dst_mask */ |
| 441 | false), /* pcrel_offset */ |
| 442 | |
| 443 | /* Insert the addend as an instruction. */ |
| 444 | /* FIXME: Not handled correctly. */ |
| 445 | HOWTO (R_MIPS_INSERT_A, /* type */ |
| 446 | 0, /* rightshift */ |
| 447 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 448 | 32, /* bitsize */ |
| 449 | false, /* pc_relative */ |
| 450 | 0, /* bitpos */ |
| 451 | complain_overflow_dont, /* complain_on_overflow */ |
| 452 | bfd_elf_generic_reloc, /* special_function */ |
| 453 | "R_MIPS_INSERT_A", /* name */ |
| 454 | true, /* partial_inplace */ |
| 455 | 0xffffffff, /* src_mask */ |
| 456 | 0xffffffff, /* dst_mask */ |
| 457 | false), /* pcrel_offset */ |
| 458 | |
| 459 | /* Insert the addend as an instruction, and change all relocations |
| 460 | to refer to the old instruction at the address. */ |
| 461 | /* FIXME: Not handled correctly. */ |
| 462 | HOWTO (R_MIPS_INSERT_B, /* type */ |
| 463 | 0, /* rightshift */ |
| 464 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 465 | 32, /* bitsize */ |
| 466 | false, /* pc_relative */ |
| 467 | 0, /* bitpos */ |
| 468 | complain_overflow_dont, /* complain_on_overflow */ |
| 469 | bfd_elf_generic_reloc, /* special_function */ |
| 470 | "R_MIPS_INSERT_B", /* name */ |
| 471 | true, /* partial_inplace */ |
| 472 | 0xffffffff, /* src_mask */ |
| 473 | 0xffffffff, /* dst_mask */ |
| 474 | false), /* pcrel_offset */ |
| 475 | |
| 476 | /* Delete a 32 bit instruction. */ |
| 477 | /* FIXME: Not handled correctly. */ |
| 478 | HOWTO (R_MIPS_DELETE, /* type */ |
| 479 | 0, /* rightshift */ |
| 480 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 481 | 32, /* bitsize */ |
| 482 | false, /* pc_relative */ |
| 483 | 0, /* bitpos */ |
| 484 | complain_overflow_dont, /* complain_on_overflow */ |
| 485 | bfd_elf_generic_reloc, /* special_function */ |
| 486 | "R_MIPS_DELETE", /* name */ |
| 487 | true, /* partial_inplace */ |
| 488 | 0xffffffff, /* src_mask */ |
| 489 | 0xffffffff, /* dst_mask */ |
| 490 | false), /* pcrel_offset */ |
| 491 | |
| 492 | /* Get the higher value of a 64 bit addend. */ |
| 493 | HOWTO (R_MIPS_HIGHER, /* type */ |
| 494 | 0, /* rightshift */ |
| 495 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 496 | 16, /* bitsize */ |
| 497 | false, /* pc_relative */ |
| 498 | 0, /* bitpos */ |
| 499 | complain_overflow_dont, /* complain_on_overflow */ |
| 500 | bfd_elf_generic_reloc, /* special_function */ |
| 501 | "R_MIPS_HIGHER", /* name */ |
| 502 | true, /* partial_inplace */ |
| 503 | 0xffff, /* src_mask */ |
| 504 | 0xffff, /* dst_mask */ |
| 505 | false), /* pcrel_offset */ |
| 506 | |
| 507 | /* Get the highest value of a 64 bit addend. */ |
| 508 | /* FIXME: Not handled correctly. */ |
| 509 | HOWTO (R_MIPS_HIGHEST, /* type */ |
| 510 | 0, /* rightshift */ |
| 511 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 512 | 16, /* bitsize */ |
| 513 | false, /* pc_relative */ |
| 514 | 0, /* bitpos */ |
| 515 | complain_overflow_dont, /* complain_on_overflow */ |
| 516 | bfd_elf_generic_reloc, /* special_function */ |
| 517 | "R_MIPS_HIGHEST", /* name */ |
| 518 | true, /* partial_inplace */ |
| 519 | 0xffff, /* src_mask */ |
| 520 | 0xffff, /* dst_mask */ |
| 521 | false), /* pcrel_offset */ |
| 522 | |
| 523 | /* High 16 bits of displacement in global offset table. */ |
| 524 | /* FIXME: Not handled correctly. */ |
| 525 | HOWTO (R_MIPS_CALL_HI16, /* type */ |
| 526 | 0, /* rightshift */ |
| 527 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 528 | 16, /* bitsize */ |
| 529 | false, /* pc_relative */ |
| 530 | 0, /* bitpos */ |
| 531 | complain_overflow_dont, /* complain_on_overflow */ |
| 532 | bfd_elf_generic_reloc, /* special_function */ |
| 533 | "R_MIPS_CALL_HI16", /* name */ |
| 534 | true, /* partial_inplace */ |
| 535 | 0xffff, /* src_mask */ |
| 536 | 0xffff, /* dst_mask */ |
| 537 | false), /* pcrel_offset */ |
| 538 | |
| 539 | /* Low 16 bits of displacement in global offset table. */ |
| 540 | /* FIXME: Not handled correctly. */ |
| 541 | HOWTO (R_MIPS_CALL_LO16, /* type */ |
| 542 | 0, /* rightshift */ |
| 543 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 544 | 16, /* bitsize */ |
| 545 | false, /* pc_relative */ |
| 546 | 0, /* bitpos */ |
| 547 | complain_overflow_dont, /* complain_on_overflow */ |
| 548 | bfd_elf_generic_reloc, /* special_function */ |
| 549 | "R_MIPS_CALL_LO16", /* name */ |
| 550 | true, /* partial_inplace */ |
| 551 | 0xffff, /* src_mask */ |
| 552 | 0xffff, /* dst_mask */ |
| 553 | false), /* pcrel_offset */ |
| 554 | |
| 555 | /* I'm not sure what the remaining relocs are, but they are defined |
| 556 | on Irix 6. */ |
| 557 | |
| 558 | HOWTO (R_MIPS_SCN_DISP, /* type */ |
| 559 | 0, /* rightshift */ |
| 560 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 561 | 32, /* bitsize */ |
| 562 | false, /* pc_relative */ |
| 563 | 0, /* bitpos */ |
| 564 | complain_overflow_dont, /* complain_on_overflow */ |
| 565 | bfd_elf_generic_reloc, /* special_function */ |
| 566 | "R_MIPS_SCN_DISP", /* name */ |
| 567 | true, /* partial_inplace */ |
| 568 | 0xffffffff, /* src_mask */ |
| 569 | 0xffffffff, /* dst_mask */ |
| 570 | false), /* pcrel_offset */ |
| 571 | |
| 572 | HOWTO (R_MIPS_REL16, /* type */ |
| 573 | 0, /* rightshift */ |
| 574 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 575 | 16, /* bitsize */ |
| 576 | false, /* pc_relative */ |
| 577 | 0, /* bitpos */ |
| 578 | complain_overflow_signed, /* complain_on_overflow */ |
| 579 | bfd_elf_generic_reloc, /* special_function */ |
| 580 | "R_MIPS_REL16", /* name */ |
| 581 | true, /* partial_inplace */ |
| 582 | 0xffff, /* src_mask */ |
| 583 | 0xffff, /* dst_mask */ |
| 584 | false), /* pcrel_offset */ |
| 585 | |
| 586 | /* These two are obsolete. */ |
| 587 | EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), |
| 588 | EMPTY_HOWTO (R_MIPS_PJUMP), |
| 589 | |
| 590 | HOWTO (R_MIPS_RELGOT, /* type */ |
| 591 | 0, /* rightshift */ |
| 592 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 593 | 32, /* bitsize */ |
| 594 | false, /* pc_relative */ |
| 595 | 0, /* bitpos */ |
| 596 | complain_overflow_dont, /* complain_on_overflow */ |
| 597 | bfd_elf_generic_reloc, /* special_function */ |
| 598 | "R_MIPS_RELGOT", /* name */ |
| 599 | true, /* partial_inplace */ |
| 600 | 0xffffffff, /* src_mask */ |
| 601 | 0xffffffff, /* dst_mask */ |
| 602 | false), /* pcrel_offset */ |
| 603 | |
| 604 | /* Protected jump conversion. This is an optimization hint. No |
| 605 | relocation is required for correctness. */ |
| 606 | HOWTO (R_MIPS_JALR, /* type */ |
| 607 | 0, /* rightshift */ |
| 608 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 609 | 0, /* bitsize */ |
| 610 | false, /* pc_relative */ |
| 611 | 0, /* bitpos */ |
| 612 | complain_overflow_dont, /* complain_on_overflow */ |
| 613 | bfd_elf_generic_reloc, /* special_function */ |
| 614 | "R_MIPS_JALR", /* name */ |
| 615 | false, /* partial_inplace */ |
| 616 | 0, /* src_mask */ |
| 617 | 0, /* dst_mask */ |
| 618 | false), /* pcrel_offset */ |
| 619 | }; |
| 620 | |
| 621 | /* The relocation table used for SHT_RELA sections. */ |
| 622 | |
| 623 | static reloc_howto_type mips_elf64_howto_table_rela[] = |
| 624 | { |
| 625 | /* No relocation. */ |
| 626 | HOWTO (R_MIPS_NONE, /* type */ |
| 627 | 0, /* rightshift */ |
| 628 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 629 | 0, /* bitsize */ |
| 630 | false, /* pc_relative */ |
| 631 | 0, /* bitpos */ |
| 632 | complain_overflow_dont, /* complain_on_overflow */ |
| 633 | bfd_elf_generic_reloc, /* special_function */ |
| 634 | "R_MIPS_NONE", /* name */ |
| 635 | false, /* partial_inplace */ |
| 636 | 0, /* src_mask */ |
| 637 | 0, /* dst_mask */ |
| 638 | false), /* pcrel_offset */ |
| 639 | |
| 640 | /* 16 bit relocation. */ |
| 641 | HOWTO (R_MIPS_16, /* type */ |
| 642 | 0, /* rightshift */ |
| 643 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 644 | 16, /* bitsize */ |
| 645 | false, /* pc_relative */ |
| 646 | 0, /* bitpos */ |
| 647 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 648 | bfd_elf_generic_reloc, /* special_function */ |
| 649 | "R_MIPS_16", /* name */ |
| 650 | false, /* partial_inplace */ |
| 651 | 0, /* src_mask */ |
| 652 | 0xffff, /* dst_mask */ |
| 653 | false), /* pcrel_offset */ |
| 654 | |
| 655 | /* 32 bit relocation. */ |
| 656 | HOWTO (R_MIPS_32, /* type */ |
| 657 | 0, /* rightshift */ |
| 658 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 659 | 32, /* bitsize */ |
| 660 | false, /* pc_relative */ |
| 661 | 0, /* bitpos */ |
| 662 | complain_overflow_dont, /* complain_on_overflow */ |
| 663 | bfd_elf_generic_reloc, /* special_function */ |
| 664 | "R_MIPS_32", /* name */ |
| 665 | false, /* partial_inplace */ |
| 666 | 0, /* src_mask */ |
| 667 | 0xffffffff, /* dst_mask */ |
| 668 | false), /* pcrel_offset */ |
| 669 | |
| 670 | /* 32 bit symbol relative relocation. */ |
| 671 | HOWTO (R_MIPS_REL32, /* type */ |
| 672 | 0, /* rightshift */ |
| 673 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 674 | 32, /* bitsize */ |
| 675 | false, /* pc_relative */ |
| 676 | 0, /* bitpos */ |
| 677 | complain_overflow_dont, /* complain_on_overflow */ |
| 678 | bfd_elf_generic_reloc, /* special_function */ |
| 679 | "R_MIPS_REL32", /* name */ |
| 680 | false, /* partial_inplace */ |
| 681 | 0, /* src_mask */ |
| 682 | 0xffffffff, /* dst_mask */ |
| 683 | false), /* pcrel_offset */ |
| 684 | |
| 685 | /* 26 bit jump address. */ |
| 686 | HOWTO (R_MIPS_26, /* type */ |
| 687 | 2, /* rightshift */ |
| 688 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 689 | 26, /* bitsize */ |
| 690 | false, /* pc_relative */ |
| 691 | 0, /* bitpos */ |
| 692 | complain_overflow_dont, /* complain_on_overflow */ |
| 693 | /* This needs complex overflow |
| 694 | detection, because the upper 36 |
| 695 | bits must match the PC + 4. */ |
| 696 | bfd_elf_generic_reloc, /* special_function */ |
| 697 | "R_MIPS_26", /* name */ |
| 698 | false, /* partial_inplace */ |
| 699 | 0, /* src_mask */ |
| 700 | 0x3ffffff, /* dst_mask */ |
| 701 | false), /* pcrel_offset */ |
| 702 | |
| 703 | /* High 16 bits of symbol value. */ |
| 704 | HOWTO (R_MIPS_HI16, /* type */ |
| 705 | 0, /* rightshift */ |
| 706 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 707 | 16, /* bitsize */ |
| 708 | false, /* pc_relative */ |
| 709 | 0, /* bitpos */ |
| 710 | complain_overflow_dont, /* complain_on_overflow */ |
| 711 | bfd_elf_generic_reloc, /* special_function */ |
| 712 | "R_MIPS_HI16", /* name */ |
| 713 | false, /* partial_inplace */ |
| 714 | 0, /* src_mask */ |
| 715 | 0xffff, /* dst_mask */ |
| 716 | false), /* pcrel_offset */ |
| 717 | |
| 718 | /* Low 16 bits of symbol value. */ |
| 719 | HOWTO (R_MIPS_LO16, /* type */ |
| 720 | 0, /* rightshift */ |
| 721 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 722 | 16, /* bitsize */ |
| 723 | false, /* pc_relative */ |
| 724 | 0, /* bitpos */ |
| 725 | complain_overflow_dont, /* complain_on_overflow */ |
| 726 | bfd_elf_generic_reloc, /* special_function */ |
| 727 | "R_MIPS_LO16", /* name */ |
| 728 | false, /* partial_inplace */ |
| 729 | 0, /* src_mask */ |
| 730 | 0xffff, /* dst_mask */ |
| 731 | false), /* pcrel_offset */ |
| 732 | |
| 733 | /* GP relative reference. */ |
| 734 | HOWTO (R_MIPS_GPREL16, /* type */ |
| 735 | 0, /* rightshift */ |
| 736 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 737 | 16, /* bitsize */ |
| 738 | false, /* pc_relative */ |
| 739 | 0, /* bitpos */ |
| 740 | complain_overflow_signed, /* complain_on_overflow */ |
| 741 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 742 | "R_MIPS_GPREL16", /* name */ |
| 743 | true, /* partial_inplace */ |
| 744 | 0, /* src_mask */ |
| 745 | 0xffff, /* dst_mask */ |
| 746 | false), /* pcrel_offset */ |
| 747 | |
| 748 | /* Reference to literal section. */ |
| 749 | HOWTO (R_MIPS_LITERAL, /* type */ |
| 750 | 0, /* rightshift */ |
| 751 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 752 | 16, /* bitsize */ |
| 753 | false, /* pc_relative */ |
| 754 | 0, /* bitpos */ |
| 755 | complain_overflow_signed, /* complain_on_overflow */ |
| 756 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| 757 | "R_MIPS_LITERAL", /* name */ |
| 758 | true, /* partial_inplace */ |
| 759 | 0, /* src_mask */ |
| 760 | 0xffff, /* dst_mask */ |
| 761 | false), /* pcrel_offset */ |
| 762 | |
| 763 | /* Reference to global offset table. */ |
| 764 | /* FIXME: This is not handled correctly. */ |
| 765 | HOWTO (R_MIPS_GOT16, /* type */ |
| 766 | 0, /* rightshift */ |
| 767 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 768 | 16, /* bitsize */ |
| 769 | false, /* pc_relative */ |
| 770 | 0, /* bitpos */ |
| 771 | complain_overflow_signed, /* complain_on_overflow */ |
| 772 | bfd_elf_generic_reloc, /* special_function */ |
| 773 | "R_MIPS_GOT16", /* name */ |
| 774 | false, /* partial_inplace */ |
| 775 | 0, /* src_mask */ |
| 776 | 0xffff, /* dst_mask */ |
| 777 | false), /* pcrel_offset */ |
| 778 | |
| 779 | /* 16 bit PC relative reference. */ |
| 780 | HOWTO (R_MIPS_PC16, /* type */ |
| 781 | 0, /* rightshift */ |
| 782 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 783 | 16, /* bitsize */ |
| 784 | true, /* pc_relative */ |
| 785 | 0, /* bitpos */ |
| 786 | complain_overflow_signed, /* complain_on_overflow */ |
| 787 | bfd_elf_generic_reloc, /* special_function */ |
| 788 | "R_MIPS_PC16", /* name */ |
| 789 | false, /* partial_inplace */ |
| 790 | 0, /* src_mask */ |
| 791 | 0xffff, /* dst_mask */ |
| 792 | false), /* pcrel_offset */ |
| 793 | |
| 794 | /* 16 bit call through global offset table. */ |
| 795 | /* FIXME: This is not handled correctly. */ |
| 796 | HOWTO (R_MIPS_CALL16, /* type */ |
| 797 | 0, /* rightshift */ |
| 798 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 799 | 16, /* bitsize */ |
| 800 | false, /* pc_relative */ |
| 801 | 0, /* bitpos */ |
| 802 | complain_overflow_signed, /* complain_on_overflow */ |
| 803 | bfd_elf_generic_reloc, /* special_function */ |
| 804 | "R_MIPS_CALL16", /* name */ |
| 805 | false, /* partial_inplace */ |
| 806 | 0, /* src_mask */ |
| 807 | 0xffff, /* dst_mask */ |
| 808 | false), /* pcrel_offset */ |
| 809 | |
| 810 | /* 32 bit GP relative reference. */ |
| 811 | HOWTO (R_MIPS_GPREL32, /* type */ |
| 812 | 0, /* rightshift */ |
| 813 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 814 | 32, /* bitsize */ |
| 815 | false, /* pc_relative */ |
| 816 | 0, /* bitpos */ |
| 817 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 818 | _bfd_mips_elf_gprel32_reloc, /* special_function */ |
| 819 | "R_MIPS_GPREL32", /* name */ |
| 820 | true, /* partial_inplace */ |
| 821 | 0, /* src_mask */ |
| 822 | 0xffffffff, /* dst_mask */ |
| 823 | false), /* pcrel_offset */ |
| 824 | |
| 825 | UNUSED_RELOC (13), |
| 826 | UNUSED_RELOC (14), |
| 827 | UNUSED_RELOC (15), |
| 828 | |
| 829 | /* A 5 bit shift field. */ |
| 830 | HOWTO (R_MIPS_SHIFT5, /* type */ |
| 831 | 0, /* rightshift */ |
| 832 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 833 | 5, /* bitsize */ |
| 834 | false, /* pc_relative */ |
| 835 | 6, /* bitpos */ |
| 836 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 837 | bfd_elf_generic_reloc, /* special_function */ |
| 838 | "R_MIPS_SHIFT5", /* name */ |
| 839 | false, /* partial_inplace */ |
| 840 | 0, /* src_mask */ |
| 841 | 0x000007c0, /* dst_mask */ |
| 842 | false), /* pcrel_offset */ |
| 843 | |
| 844 | /* A 6 bit shift field. */ |
| 845 | /* FIXME: This is not handled correctly; a special function is |
| 846 | needed to put the most significant bit in the right place. */ |
| 847 | HOWTO (R_MIPS_SHIFT6, /* type */ |
| 848 | 0, /* rightshift */ |
| 849 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 850 | 6, /* bitsize */ |
| 851 | false, /* pc_relative */ |
| 852 | 6, /* bitpos */ |
| 853 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 854 | bfd_elf_generic_reloc, /* special_function */ |
| 855 | "R_MIPS_SHIFT6", /* name */ |
| 856 | false, /* partial_inplace */ |
| 857 | 0, /* src_mask */ |
| 858 | 0x000007c4, /* dst_mask */ |
| 859 | false), /* pcrel_offset */ |
| 860 | |
| 861 | /* 64 bit relocation. */ |
| 862 | HOWTO (R_MIPS_64, /* type */ |
| 863 | 0, /* rightshift */ |
| 864 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 865 | 64, /* bitsize */ |
| 866 | false, /* pc_relative */ |
| 867 | 0, /* bitpos */ |
| 868 | complain_overflow_dont, /* complain_on_overflow */ |
| 869 | bfd_elf_generic_reloc, /* special_function */ |
| 870 | "R_MIPS_64", /* name */ |
| 871 | false, /* partial_inplace */ |
| 872 | 0, /* src_mask */ |
| 873 | MINUS_ONE, /* dst_mask */ |
| 874 | false), /* pcrel_offset */ |
| 875 | |
| 876 | /* Displacement in the global offset table. */ |
| 877 | /* FIXME: Not handled correctly. */ |
| 878 | HOWTO (R_MIPS_GOT_DISP, /* type */ |
| 879 | 0, /* rightshift */ |
| 880 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 881 | 16, /* bitsize */ |
| 882 | false, /* pc_relative */ |
| 883 | 0, /* bitpos */ |
| 884 | complain_overflow_signed, /* complain_on_overflow */ |
| 885 | bfd_elf_generic_reloc, /* special_function */ |
| 886 | "R_MIPS_GOT_DISP", /* name */ |
| 887 | false, /* partial_inplace */ |
| 888 | 0, /* src_mask */ |
| 889 | 0x0000ffff, /* dst_mask */ |
| 890 | false), /* pcrel_offset */ |
| 891 | |
| 892 | /* Displacement to page pointer in the global offset table. */ |
| 893 | /* FIXME: Not handled correctly. */ |
| 894 | HOWTO (R_MIPS_GOT_PAGE, /* type */ |
| 895 | 0, /* rightshift */ |
| 896 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 897 | 16, /* bitsize */ |
| 898 | false, /* pc_relative */ |
| 899 | 0, /* bitpos */ |
| 900 | complain_overflow_signed, /* complain_on_overflow */ |
| 901 | bfd_elf_generic_reloc, /* special_function */ |
| 902 | "R_MIPS_GOT_PAGE", /* name */ |
| 903 | false, /* partial_inplace */ |
| 904 | 0, /* src_mask */ |
| 905 | 0x0000ffff, /* dst_mask */ |
| 906 | false), /* pcrel_offset */ |
| 907 | |
| 908 | /* Offset from page pointer in the global offset table. */ |
| 909 | /* FIXME: Not handled correctly. */ |
| 910 | HOWTO (R_MIPS_GOT_OFST, /* type */ |
| 911 | 0, /* rightshift */ |
| 912 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 913 | 16, /* bitsize */ |
| 914 | false, /* pc_relative */ |
| 915 | 0, /* bitpos */ |
| 916 | complain_overflow_signed, /* complain_on_overflow */ |
| 917 | bfd_elf_generic_reloc, /* special_function */ |
| 918 | "R_MIPS_GOT_OFST", /* name */ |
| 919 | false, /* partial_inplace */ |
| 920 | 0, /* src_mask */ |
| 921 | 0x0000ffff, /* dst_mask */ |
| 922 | false), /* pcrel_offset */ |
| 923 | |
| 924 | /* High 16 bits of displacement in global offset table. */ |
| 925 | /* FIXME: Not handled correctly. */ |
| 926 | HOWTO (R_MIPS_GOT_HI16, /* type */ |
| 927 | 0, /* rightshift */ |
| 928 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 929 | 16, /* bitsize */ |
| 930 | false, /* pc_relative */ |
| 931 | 0, /* bitpos */ |
| 932 | complain_overflow_dont, /* complain_on_overflow */ |
| 933 | bfd_elf_generic_reloc, /* special_function */ |
| 934 | "R_MIPS_GOT_HI16", /* name */ |
| 935 | false, /* partial_inplace */ |
| 936 | 0, /* src_mask */ |
| 937 | 0x0000ffff, /* dst_mask */ |
| 938 | false), /* pcrel_offset */ |
| 939 | |
| 940 | /* Low 16 bits of displacement in global offset table. */ |
| 941 | /* FIXME: Not handled correctly. */ |
| 942 | HOWTO (R_MIPS_GOT_LO16, /* type */ |
| 943 | 0, /* rightshift */ |
| 944 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 945 | 16, /* bitsize */ |
| 946 | false, /* pc_relative */ |
| 947 | 0, /* bitpos */ |
| 948 | complain_overflow_dont, /* complain_on_overflow */ |
| 949 | bfd_elf_generic_reloc, /* special_function */ |
| 950 | "R_MIPS_GOT_LO16", /* name */ |
| 951 | false, /* partial_inplace */ |
| 952 | 0, /* src_mask */ |
| 953 | 0x0000ffff, /* dst_mask */ |
| 954 | false), /* pcrel_offset */ |
| 955 | |
| 956 | /* 64 bit substraction. */ |
| 957 | /* FIXME: Not handled correctly. */ |
| 958 | HOWTO (R_MIPS_SUB, /* type */ |
| 959 | 0, /* rightshift */ |
| 960 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 961 | 64, /* bitsize */ |
| 962 | false, /* pc_relative */ |
| 963 | 0, /* bitpos */ |
| 964 | complain_overflow_dont, /* complain_on_overflow */ |
| 965 | bfd_elf_generic_reloc, /* special_function */ |
| 966 | "R_MIPS_SUB", /* name */ |
| 967 | false, /* partial_inplace */ |
| 968 | 0, /* src_mask */ |
| 969 | MINUS_ONE, /* dst_mask */ |
| 970 | false), /* pcrel_offset */ |
| 971 | |
| 972 | /* Insert the addend as an instruction. */ |
| 973 | /* FIXME: Not handled correctly. */ |
| 974 | HOWTO (R_MIPS_INSERT_A, /* type */ |
| 975 | 0, /* rightshift */ |
| 976 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 977 | 32, /* bitsize */ |
| 978 | false, /* pc_relative */ |
| 979 | 0, /* bitpos */ |
| 980 | complain_overflow_dont, /* complain_on_overflow */ |
| 981 | bfd_elf_generic_reloc, /* special_function */ |
| 982 | "R_MIPS_INSERT_A", /* name */ |
| 983 | false, /* partial_inplace */ |
| 984 | 0, /* src_mask */ |
| 985 | 0xffffffff, /* dst_mask */ |
| 986 | false), /* pcrel_offset */ |
| 987 | |
| 988 | /* Insert the addend as an instruction, and change all relocations |
| 989 | to refer to the old instruction at the address. */ |
| 990 | /* FIXME: Not handled correctly. */ |
| 991 | HOWTO (R_MIPS_INSERT_B, /* type */ |
| 992 | 0, /* rightshift */ |
| 993 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 994 | 32, /* bitsize */ |
| 995 | false, /* pc_relative */ |
| 996 | 0, /* bitpos */ |
| 997 | complain_overflow_dont, /* complain_on_overflow */ |
| 998 | bfd_elf_generic_reloc, /* special_function */ |
| 999 | "R_MIPS_INSERT_B", /* name */ |
| 1000 | false, /* partial_inplace */ |
| 1001 | 0, /* src_mask */ |
| 1002 | 0xffffffff, /* dst_mask */ |
| 1003 | false), /* pcrel_offset */ |
| 1004 | |
| 1005 | /* Delete a 32 bit instruction. */ |
| 1006 | /* FIXME: Not handled correctly. */ |
| 1007 | HOWTO (R_MIPS_DELETE, /* type */ |
| 1008 | 0, /* rightshift */ |
| 1009 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1010 | 32, /* bitsize */ |
| 1011 | false, /* pc_relative */ |
| 1012 | 0, /* bitpos */ |
| 1013 | complain_overflow_dont, /* complain_on_overflow */ |
| 1014 | bfd_elf_generic_reloc, /* special_function */ |
| 1015 | "R_MIPS_DELETE", /* name */ |
| 1016 | false, /* partial_inplace */ |
| 1017 | 0, /* src_mask */ |
| 1018 | 0xffffffff, /* dst_mask */ |
| 1019 | false), /* pcrel_offset */ |
| 1020 | |
| 1021 | /* Get the higher value of a 64 bit addend. */ |
| 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 | false, /* 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 | HOWTO (R_MIPS_HIGHEST, /* type */ |
| 1038 | 0, /* rightshift */ |
| 1039 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1040 | 16, /* bitsize */ |
| 1041 | false, /* pc_relative */ |
| 1042 | 0, /* bitpos */ |
| 1043 | complain_overflow_dont, /* complain_on_overflow */ |
| 1044 | bfd_elf_generic_reloc, /* special_function */ |
| 1045 | "R_MIPS_HIGHEST", /* name */ |
| 1046 | false, /* partial_inplace */ |
| 1047 | 0, /* src_mask */ |
| 1048 | 0xffff, /* dst_mask */ |
| 1049 | false), /* pcrel_offset */ |
| 1050 | |
| 1051 | /* High 16 bits of displacement in global offset table. */ |
| 1052 | /* FIXME: Not handled correctly. */ |
| 1053 | HOWTO (R_MIPS_CALL_HI16, /* type */ |
| 1054 | 0, /* rightshift */ |
| 1055 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1056 | 16, /* bitsize */ |
| 1057 | false, /* pc_relative */ |
| 1058 | 0, /* bitpos */ |
| 1059 | complain_overflow_dont, /* complain_on_overflow */ |
| 1060 | bfd_elf_generic_reloc, /* special_function */ |
| 1061 | "R_MIPS_CALL_HI16", /* name */ |
| 1062 | false, /* partial_inplace */ |
| 1063 | 0, /* src_mask */ |
| 1064 | 0xffff, /* dst_mask */ |
| 1065 | false), /* pcrel_offset */ |
| 1066 | |
| 1067 | /* Low 16 bits of displacement in global offset table. */ |
| 1068 | /* FIXME: Not handled correctly. */ |
| 1069 | HOWTO (R_MIPS_CALL_LO16, /* type */ |
| 1070 | 0, /* rightshift */ |
| 1071 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1072 | 16, /* bitsize */ |
| 1073 | false, /* pc_relative */ |
| 1074 | 0, /* bitpos */ |
| 1075 | complain_overflow_dont, /* complain_on_overflow */ |
| 1076 | bfd_elf_generic_reloc, /* special_function */ |
| 1077 | "R_MIPS_CALL_LO16", /* name */ |
| 1078 | false, /* partial_inplace */ |
| 1079 | 0, /* src_mask */ |
| 1080 | 0xffff, /* dst_mask */ |
| 1081 | false), /* pcrel_offset */ |
| 1082 | |
| 1083 | /* I'm not sure what the remaining relocs are, but they are defined |
| 1084 | on Irix 6. */ |
| 1085 | |
| 1086 | HOWTO (R_MIPS_SCN_DISP, /* type */ |
| 1087 | 0, /* rightshift */ |
| 1088 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1089 | 32, /* bitsize */ |
| 1090 | false, /* pc_relative */ |
| 1091 | 0, /* bitpos */ |
| 1092 | complain_overflow_dont, /* complain_on_overflow */ |
| 1093 | bfd_elf_generic_reloc, /* special_function */ |
| 1094 | "R_MIPS_SCN_DISP", /* name */ |
| 1095 | false, /* partial_inplace */ |
| 1096 | 0, /* src_mask */ |
| 1097 | 0xffffffff, /* dst_mask */ |
| 1098 | false), /* pcrel_offset */ |
| 1099 | |
| 1100 | HOWTO (R_MIPS_REL16, /* type */ |
| 1101 | 0, /* rightshift */ |
| 1102 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1103 | 16, /* bitsize */ |
| 1104 | false, /* pc_relative */ |
| 1105 | 0, /* bitpos */ |
| 1106 | complain_overflow_signed, /* complain_on_overflow */ |
| 1107 | bfd_elf_generic_reloc, /* special_function */ |
| 1108 | "R_MIPS_REL16", /* name */ |
| 1109 | false, /* partial_inplace */ |
| 1110 | 0, /* src_mask */ |
| 1111 | 0xffff, /* dst_mask */ |
| 1112 | false), /* pcrel_offset */ |
| 1113 | |
| 1114 | /* These two are obsolete. */ |
| 1115 | EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), |
| 1116 | EMPTY_HOWTO (R_MIPS_PJUMP), |
| 1117 | |
| 1118 | HOWTO (R_MIPS_RELGOT, /* type */ |
| 1119 | 0, /* rightshift */ |
| 1120 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1121 | 32, /* bitsize */ |
| 1122 | false, /* pc_relative */ |
| 1123 | 0, /* bitpos */ |
| 1124 | complain_overflow_dont, /* complain_on_overflow */ |
| 1125 | bfd_elf_generic_reloc, /* special_function */ |
| 1126 | "R_MIPS_RELGOT", /* name */ |
| 1127 | false, /* partial_inplace */ |
| 1128 | 0, /* src_mask */ |
| 1129 | 0xffffffff, /* dst_mask */ |
| 1130 | false), /* pcrel_offset */ |
| 1131 | |
| 1132 | /* Protected jump conversion. This is an optimization hint. No |
| 1133 | relocation is required for correctness. */ |
| 1134 | HOWTO (R_MIPS_JALR, /* type */ |
| 1135 | 0, /* rightshift */ |
| 1136 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1137 | 0, /* bitsize */ |
| 1138 | false, /* pc_relative */ |
| 1139 | 0, /* bitpos */ |
| 1140 | complain_overflow_dont, /* complain_on_overflow */ |
| 1141 | bfd_elf_generic_reloc, /* special_function */ |
| 1142 | "R_MIPS_JALR", /* name */ |
| 1143 | false, /* partial_inplace */ |
| 1144 | 0, /* src_mask */ |
| 1145 | 0, /* dst_mask */ |
| 1146 | false), /* pcrel_offset */ |
| 1147 | }; |
| 1148 | |
| 1149 | /* Swap in a MIPS 64-bit Rel reloc. */ |
| 1150 | |
| 1151 | static void |
| 1152 | mips_elf64_swap_reloc_in (abfd, src, dst) |
| 1153 | bfd *abfd; |
| 1154 | const Elf64_Mips_External_Rel *src; |
| 1155 | Elf64_Mips_Internal_Rel *dst; |
| 1156 | { |
| 1157 | dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset); |
| 1158 | dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym); |
| 1159 | dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym); |
| 1160 | dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3); |
| 1161 | dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2); |
| 1162 | dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type); |
| 1163 | } |
| 1164 | |
| 1165 | /* Swap in a MIPS 64-bit Rela reloc. */ |
| 1166 | |
| 1167 | static void |
| 1168 | mips_elf64_swap_reloca_in (abfd, src, dst) |
| 1169 | bfd *abfd; |
| 1170 | const Elf64_Mips_External_Rela *src; |
| 1171 | Elf64_Mips_Internal_Rela *dst; |
| 1172 | { |
| 1173 | dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset); |
| 1174 | dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym); |
| 1175 | dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym); |
| 1176 | dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3); |
| 1177 | dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2); |
| 1178 | dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type); |
| 1179 | dst->r_addend = bfd_h_get_signed_64 (abfd, (bfd_byte *) src->r_addend); |
| 1180 | } |
| 1181 | |
| 1182 | /* Swap out a MIPS 64-bit Rel reloc. */ |
| 1183 | |
| 1184 | static void |
| 1185 | mips_elf64_swap_reloc_out (abfd, src, dst) |
| 1186 | bfd *abfd; |
| 1187 | const Elf64_Mips_Internal_Rel *src; |
| 1188 | Elf64_Mips_External_Rel *dst; |
| 1189 | { |
| 1190 | bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset); |
| 1191 | bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym); |
| 1192 | bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym); |
| 1193 | bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3); |
| 1194 | bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2); |
| 1195 | bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type); |
| 1196 | } |
| 1197 | |
| 1198 | /* Swap out a MIPS 64-bit Rela reloc. */ |
| 1199 | |
| 1200 | static void |
| 1201 | mips_elf64_swap_reloca_out (abfd, src, dst) |
| 1202 | bfd *abfd; |
| 1203 | const Elf64_Mips_Internal_Rela *src; |
| 1204 | Elf64_Mips_External_Rela *dst; |
| 1205 | { |
| 1206 | bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset); |
| 1207 | bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym); |
| 1208 | bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym); |
| 1209 | bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3); |
| 1210 | bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2); |
| 1211 | bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type); |
| 1212 | bfd_h_put_64 (abfd, src->r_addend, (bfd_byte *) dst->r_addend); |
| 1213 | } |
| 1214 | |
| 1215 | /* Swap in a MIPS 64-bit Rel reloc. */ |
| 1216 | |
| 1217 | static void |
| 1218 | mips_elf64_be_swap_reloc_in (abfd, src, dst) |
| 1219 | bfd *abfd; |
| 1220 | const bfd_byte *src; |
| 1221 | Elf_Internal_Rel *dst; |
| 1222 | { |
| 1223 | Elf64_Mips_Internal_Rel mirel; |
| 1224 | |
| 1225 | mips_elf64_swap_reloc_in (abfd, |
| 1226 | (const Elf64_Mips_External_Rel *) src, |
| 1227 | &mirel); |
| 1228 | |
| 1229 | dst[0].r_offset = mirel.r_offset; |
| 1230 | dst[0].r_info = ELF32_R_INFO (mirel.r_sym, mirel.r_type); |
| 1231 | dst[1].r_offset = mirel.r_offset; |
| 1232 | dst[1].r_info = ELF32_R_INFO (mirel.r_ssym, mirel.r_type2); |
| 1233 | dst[2].r_offset = mirel.r_offset; |
| 1234 | dst[2].r_info = ELF32_R_INFO (STN_UNDEF, mirel.r_type3); |
| 1235 | } |
| 1236 | |
| 1237 | /* Swap in a MIPS 64-bit Rela reloc. */ |
| 1238 | |
| 1239 | static void |
| 1240 | mips_elf64_be_swap_reloca_in (abfd, src, dst) |
| 1241 | bfd *abfd; |
| 1242 | const bfd_byte *src; |
| 1243 | Elf_Internal_Rela *dst; |
| 1244 | { |
| 1245 | Elf64_Mips_Internal_Rela mirela; |
| 1246 | |
| 1247 | mips_elf64_swap_reloca_in (abfd, |
| 1248 | (const Elf64_Mips_External_Rela *) src, |
| 1249 | &mirela); |
| 1250 | |
| 1251 | dst[0].r_offset = mirela.r_offset; |
| 1252 | dst[0].r_info = ELF32_R_INFO (mirela.r_sym, mirela.r_type); |
| 1253 | dst[0].r_addend = mirela.r_addend; |
| 1254 | dst[1].r_offset = mirela.r_offset; |
| 1255 | dst[1].r_info = ELF32_R_INFO (mirela.r_ssym, mirela.r_type2); |
| 1256 | dst[1].r_addend = 0; |
| 1257 | dst[2].r_offset = mirela.r_offset; |
| 1258 | dst[2].r_info = ELF32_R_INFO (STN_UNDEF, mirela.r_type3); |
| 1259 | dst[2].r_addend = 0; |
| 1260 | } |
| 1261 | |
| 1262 | /* Swap out a MIPS 64-bit Rel reloc. */ |
| 1263 | |
| 1264 | static void |
| 1265 | mips_elf64_be_swap_reloc_out (abfd, src, dst) |
| 1266 | bfd *abfd; |
| 1267 | const Elf_Internal_Rel *src; |
| 1268 | bfd_byte *dst; |
| 1269 | { |
| 1270 | Elf64_Mips_Internal_Rel mirel; |
| 1271 | |
| 1272 | mirel.r_offset = src->r_offset; |
| 1273 | mirel.r_type = ELF32_R_TYPE (src->r_info); |
| 1274 | mirel.r_sym = ELF32_R_SYM (src->r_info); |
| 1275 | mirel.r_type2 = R_MIPS_NONE; |
| 1276 | mirel.r_ssym = STN_UNDEF; |
| 1277 | mirel.r_type3 = R_MIPS_NONE; |
| 1278 | |
| 1279 | mips_elf64_swap_reloc_out (abfd, &mirel, |
| 1280 | (Elf64_Mips_External_Rel *) dst); |
| 1281 | } |
| 1282 | |
| 1283 | /* Swap out a MIPS 64-bit Rela reloc. */ |
| 1284 | |
| 1285 | static void |
| 1286 | mips_elf64_be_swap_reloca_out (abfd, src, dst) |
| 1287 | bfd *abfd; |
| 1288 | const Elf_Internal_Rela *src; |
| 1289 | bfd_byte *dst; |
| 1290 | { |
| 1291 | Elf64_Mips_Internal_Rela mirela; |
| 1292 | |
| 1293 | mirela.r_offset = src->r_offset; |
| 1294 | mirela.r_type = ELF32_R_TYPE (src->r_info); |
| 1295 | mirela.r_addend = src->r_addend; |
| 1296 | mirela.r_sym = ELF32_R_SYM (src->r_info); |
| 1297 | mirela.r_type2 = R_MIPS_NONE; |
| 1298 | mirela.r_ssym = STN_UNDEF; |
| 1299 | mirela.r_type3 = R_MIPS_NONE; |
| 1300 | |
| 1301 | mips_elf64_swap_reloca_out (abfd, &mirela, |
| 1302 | (Elf64_Mips_External_Rela *) dst); |
| 1303 | } |
| 1304 | |
| 1305 | /* A mapping from BFD reloc types to MIPS ELF reloc types. */ |
| 1306 | |
| 1307 | struct elf_reloc_map |
| 1308 | { |
| 1309 | bfd_reloc_code_real_type bfd_reloc_val; |
| 1310 | enum elf_mips_reloc_type elf_reloc_val; |
| 1311 | }; |
| 1312 | |
| 1313 | static CONST struct elf_reloc_map mips_reloc_map[] = |
| 1314 | { |
| 1315 | { BFD_RELOC_NONE, R_MIPS_NONE, }, |
| 1316 | { BFD_RELOC_16, R_MIPS_16 }, |
| 1317 | { BFD_RELOC_32, R_MIPS_32 }, |
| 1318 | { BFD_RELOC_64, R_MIPS_64 }, |
| 1319 | { BFD_RELOC_CTOR, R_MIPS_64 }, |
| 1320 | { BFD_RELOC_32_PCREL, R_MIPS_REL32 }, |
| 1321 | { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, |
| 1322 | { BFD_RELOC_HI16_S, R_MIPS_HI16 }, |
| 1323 | { BFD_RELOC_LO16, R_MIPS_LO16 }, |
| 1324 | { BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 }, |
| 1325 | { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, |
| 1326 | { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, |
| 1327 | { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, |
| 1328 | { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, |
| 1329 | { BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 }, |
| 1330 | { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, |
| 1331 | { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, |
| 1332 | { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, |
| 1333 | { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, |
| 1334 | { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, |
| 1335 | { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, |
| 1336 | { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, |
| 1337 | { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP } |
| 1338 | }; |
| 1339 | |
| 1340 | /* Given a BFD reloc type, return a howto structure. */ |
| 1341 | |
| 1342 | static reloc_howto_type * |
| 1343 | mips_elf64_reloc_type_lookup (abfd, code) |
| 1344 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1345 | bfd_reloc_code_real_type code; |
| 1346 | { |
| 1347 | unsigned int i; |
| 1348 | |
| 1349 | for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++) |
| 1350 | { |
| 1351 | if (mips_reloc_map[i].bfd_reloc_val == code) |
| 1352 | { |
| 1353 | int v; |
| 1354 | |
| 1355 | v = (int) mips_reloc_map[i].elf_reloc_val; |
| 1356 | return &mips_elf64_howto_table_rel[v]; |
| 1357 | } |
| 1358 | } |
| 1359 | |
| 1360 | return NULL; |
| 1361 | } |
| 1362 | |
| 1363 | /* Since each entry in an SHT_REL or SHT_RELA section can represent up |
| 1364 | to three relocs, we must tell the user to allocate more space. */ |
| 1365 | |
| 1366 | static long |
| 1367 | mips_elf64_get_reloc_upper_bound (abfd, sec) |
| 1368 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1369 | asection *sec; |
| 1370 | { |
| 1371 | return (sec->reloc_count * 3 + 1) * sizeof (arelent *); |
| 1372 | } |
| 1373 | |
| 1374 | /* Read the relocations from one reloc section. */ |
| 1375 | |
| 1376 | static boolean |
| 1377 | mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, rel_hdr) |
| 1378 | bfd *abfd; |
| 1379 | asection *asect; |
| 1380 | asymbol **symbols; |
| 1381 | const Elf_Internal_Shdr *rel_hdr; |
| 1382 | { |
| 1383 | PTR allocated = NULL; |
| 1384 | bfd_byte *native_relocs; |
| 1385 | arelent *relents; |
| 1386 | arelent *relent; |
| 1387 | unsigned int count; |
| 1388 | unsigned int i; |
| 1389 | int entsize; |
| 1390 | reloc_howto_type *howto_table; |
| 1391 | |
| 1392 | allocated = (PTR) bfd_malloc (rel_hdr->sh_size); |
| 1393 | if (allocated == NULL) |
| 1394 | goto error_return; |
| 1395 | |
| 1396 | if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 |
| 1397 | || (bfd_read (allocated, 1, rel_hdr->sh_size, abfd) != rel_hdr->sh_size)) |
| 1398 | goto error_return; |
| 1399 | |
| 1400 | native_relocs = (bfd_byte *) allocated; |
| 1401 | |
| 1402 | relents = asect->relocation + asect->reloc_count; |
| 1403 | |
| 1404 | entsize = rel_hdr->sh_entsize; |
| 1405 | BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel) |
| 1406 | || entsize == sizeof (Elf64_Mips_External_Rela)); |
| 1407 | |
| 1408 | count = rel_hdr->sh_size / entsize; |
| 1409 | |
| 1410 | if (entsize == sizeof (Elf64_Mips_External_Rel)) |
| 1411 | howto_table = mips_elf64_howto_table_rel; |
| 1412 | else |
| 1413 | howto_table = mips_elf64_howto_table_rela; |
| 1414 | |
| 1415 | relent = relents; |
| 1416 | for (i = 0; i < count; i++, native_relocs += entsize) |
| 1417 | { |
| 1418 | Elf64_Mips_Internal_Rela rela; |
| 1419 | boolean used_sym, used_ssym; |
| 1420 | int ir; |
| 1421 | |
| 1422 | if (entsize == sizeof (Elf64_Mips_External_Rela)) |
| 1423 | mips_elf64_swap_reloca_in (abfd, |
| 1424 | (Elf64_Mips_External_Rela *) native_relocs, |
| 1425 | &rela); |
| 1426 | else |
| 1427 | { |
| 1428 | Elf64_Mips_Internal_Rel rel; |
| 1429 | |
| 1430 | mips_elf64_swap_reloc_in (abfd, |
| 1431 | (Elf64_Mips_External_Rel *) native_relocs, |
| 1432 | &rel); |
| 1433 | rela.r_offset = rel.r_offset; |
| 1434 | rela.r_sym = rel.r_sym; |
| 1435 | rela.r_ssym = rel.r_ssym; |
| 1436 | rela.r_type3 = rel.r_type3; |
| 1437 | rela.r_type2 = rel.r_type2; |
| 1438 | rela.r_type = rel.r_type; |
| 1439 | rela.r_addend = 0; |
| 1440 | } |
| 1441 | |
| 1442 | /* Each entry represents up to three actual relocations. */ |
| 1443 | |
| 1444 | used_sym = false; |
| 1445 | used_ssym = false; |
| 1446 | for (ir = 0; ir < 3; ir++) |
| 1447 | { |
| 1448 | enum elf_mips_reloc_type type; |
| 1449 | |
| 1450 | switch (ir) |
| 1451 | { |
| 1452 | default: |
| 1453 | abort (); |
| 1454 | case 0: |
| 1455 | type = (enum elf_mips_reloc_type) rela.r_type; |
| 1456 | break; |
| 1457 | case 1: |
| 1458 | type = (enum elf_mips_reloc_type) rela.r_type2; |
| 1459 | break; |
| 1460 | case 2: |
| 1461 | type = (enum elf_mips_reloc_type) rela.r_type3; |
| 1462 | break; |
| 1463 | } |
| 1464 | |
| 1465 | if (type == R_MIPS_NONE) |
| 1466 | { |
| 1467 | /* There are no more relocations in this entry. If this |
| 1468 | is the first entry, we need to generate a dummy |
| 1469 | relocation so that the generic linker knows that |
| 1470 | there has been a break in the sequence of relocations |
| 1471 | applying to a particular address. */ |
| 1472 | if (ir == 0) |
| 1473 | { |
| 1474 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 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 | relent->addend = 0; |
| 1480 | relent->howto = &howto_table[(int) R_MIPS_NONE]; |
| 1481 | ++relent; |
| 1482 | } |
| 1483 | break; |
| 1484 | } |
| 1485 | |
| 1486 | /* Some types require symbols, whereas some do not. */ |
| 1487 | switch (type) |
| 1488 | { |
| 1489 | case R_MIPS_NONE: |
| 1490 | case R_MIPS_LITERAL: |
| 1491 | case R_MIPS_INSERT_A: |
| 1492 | case R_MIPS_INSERT_B: |
| 1493 | case R_MIPS_DELETE: |
| 1494 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1495 | break; |
| 1496 | |
| 1497 | default: |
| 1498 | if (! used_sym) |
| 1499 | { |
| 1500 | if (rela.r_sym == 0) |
| 1501 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1502 | else |
| 1503 | { |
| 1504 | asymbol **ps, *s; |
| 1505 | |
| 1506 | ps = symbols + rela.r_sym - 1; |
| 1507 | s = *ps; |
| 1508 | if ((s->flags & BSF_SECTION_SYM) == 0) |
| 1509 | relent->sym_ptr_ptr = ps; |
| 1510 | else |
| 1511 | relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; |
| 1512 | } |
| 1513 | |
| 1514 | used_sym = true; |
| 1515 | } |
| 1516 | else if (! used_ssym) |
| 1517 | { |
| 1518 | switch (rela.r_ssym) |
| 1519 | { |
| 1520 | case RSS_UNDEF: |
| 1521 | relent->sym_ptr_ptr = |
| 1522 | bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1523 | break; |
| 1524 | |
| 1525 | case RSS_GP: |
| 1526 | case RSS_GP0: |
| 1527 | case RSS_LOC: |
| 1528 | /* FIXME: I think these need to be handled using |
| 1529 | special howto structures. */ |
| 1530 | BFD_ASSERT (0); |
| 1531 | break; |
| 1532 | |
| 1533 | default: |
| 1534 | BFD_ASSERT (0); |
| 1535 | break; |
| 1536 | } |
| 1537 | |
| 1538 | used_ssym = true; |
| 1539 | } |
| 1540 | else |
| 1541 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 1542 | |
| 1543 | break; |
| 1544 | } |
| 1545 | |
| 1546 | /* The address of an ELF reloc is section relative for an |
| 1547 | object file, and absolute for an executable file or |
| 1548 | shared library. The address of a BFD reloc is always |
| 1549 | section relative. */ |
| 1550 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) |
| 1551 | relent->address = rela.r_offset; |
| 1552 | else |
| 1553 | relent->address = rela.r_offset - asect->vma; |
| 1554 | |
| 1555 | relent->addend = rela.r_addend; |
| 1556 | |
| 1557 | relent->howto = &howto_table[(int) type]; |
| 1558 | |
| 1559 | ++relent; |
| 1560 | } |
| 1561 | } |
| 1562 | |
| 1563 | asect->reloc_count += relent - relents; |
| 1564 | |
| 1565 | if (allocated != NULL) |
| 1566 | free (allocated); |
| 1567 | |
| 1568 | return true; |
| 1569 | |
| 1570 | error_return: |
| 1571 | if (allocated != NULL) |
| 1572 | free (allocated); |
| 1573 | return false; |
| 1574 | } |
| 1575 | |
| 1576 | /* Read the relocations. On Irix 6, there can be two reloc sections |
| 1577 | associated with a single data section. */ |
| 1578 | |
| 1579 | static boolean |
| 1580 | mips_elf64_slurp_reloc_table (abfd, asect, symbols, dynamic) |
| 1581 | bfd *abfd; |
| 1582 | asection *asect; |
| 1583 | asymbol **symbols; |
| 1584 | boolean dynamic; |
| 1585 | { |
| 1586 | struct bfd_elf_section_data * const d = elf_section_data (asect); |
| 1587 | |
| 1588 | if (dynamic) |
| 1589 | { |
| 1590 | bfd_set_error (bfd_error_invalid_operation); |
| 1591 | return false; |
| 1592 | } |
| 1593 | |
| 1594 | if (asect->relocation != NULL |
| 1595 | || (asect->flags & SEC_RELOC) == 0 |
| 1596 | || asect->reloc_count == 0) |
| 1597 | return true; |
| 1598 | |
| 1599 | /* Allocate space for 3 arelent structures for each Rel structure. */ |
| 1600 | asect->relocation = ((arelent *) |
| 1601 | bfd_alloc (abfd, |
| 1602 | asect->reloc_count * 3 * sizeof (arelent))); |
| 1603 | if (asect->relocation == NULL) |
| 1604 | return false; |
| 1605 | |
| 1606 | /* The slurp_one_reloc_table routine increments reloc_count. */ |
| 1607 | asect->reloc_count = 0; |
| 1608 | |
| 1609 | if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, &d->rel_hdr)) |
| 1610 | return false; |
| 1611 | if (d->rel_hdr2 != NULL) |
| 1612 | { |
| 1613 | if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, |
| 1614 | d->rel_hdr2)) |
| 1615 | return false; |
| 1616 | } |
| 1617 | |
| 1618 | return true; |
| 1619 | } |
| 1620 | |
| 1621 | /* Write out the relocations. */ |
| 1622 | |
| 1623 | static void |
| 1624 | mips_elf64_write_relocs (abfd, sec, data) |
| 1625 | bfd *abfd; |
| 1626 | asection *sec; |
| 1627 | PTR data; |
| 1628 | { |
| 1629 | boolean *failedp = (boolean *) data; |
| 1630 | unsigned int count; |
| 1631 | Elf_Internal_Shdr *rela_hdr; |
| 1632 | Elf64_Mips_External_Rela *ext_rela; |
| 1633 | unsigned int idx; |
| 1634 | asymbol *last_sym = 0; |
| 1635 | int last_sym_idx = 0; |
| 1636 | |
| 1637 | /* If we have already failed, don't do anything. */ |
| 1638 | if (*failedp) |
| 1639 | return; |
| 1640 | |
| 1641 | if ((sec->flags & SEC_RELOC) == 0) |
| 1642 | return; |
| 1643 | |
| 1644 | /* The linker backend writes the relocs out itself, and sets the |
| 1645 | reloc_count field to zero to inhibit writing them here. Also, |
| 1646 | sometimes the SEC_RELOC flag gets set even when there aren't any |
| 1647 | relocs. */ |
| 1648 | if (sec->reloc_count == 0) |
| 1649 | return; |
| 1650 | |
| 1651 | /* We can combine up to three relocs that refer to the same address |
| 1652 | if the latter relocs have no associated symbol. */ |
| 1653 | count = 0; |
| 1654 | for (idx = 0; idx < sec->reloc_count; idx++) |
| 1655 | { |
| 1656 | bfd_vma addr; |
| 1657 | unsigned int i; |
| 1658 | |
| 1659 | ++count; |
| 1660 | |
| 1661 | addr = sec->orelocation[idx]->address; |
| 1662 | for (i = 0; i < 2; i++) |
| 1663 | { |
| 1664 | arelent *r; |
| 1665 | |
| 1666 | if (idx + 1 >= sec->reloc_count) |
| 1667 | break; |
| 1668 | r = sec->orelocation[idx + 1]; |
| 1669 | if (r->address != addr |
| 1670 | || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) |
| 1671 | || (*r->sym_ptr_ptr)->value != 0) |
| 1672 | break; |
| 1673 | |
| 1674 | /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ |
| 1675 | |
| 1676 | ++idx; |
| 1677 | } |
| 1678 | } |
| 1679 | |
| 1680 | rela_hdr = &elf_section_data (sec)->rel_hdr; |
| 1681 | |
| 1682 | rela_hdr->sh_size = rela_hdr->sh_entsize * count; |
| 1683 | rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size); |
| 1684 | if (rela_hdr->contents == NULL) |
| 1685 | { |
| 1686 | *failedp = true; |
| 1687 | return; |
| 1688 | } |
| 1689 | |
| 1690 | ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents; |
| 1691 | for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++) |
| 1692 | { |
| 1693 | arelent *ptr; |
| 1694 | Elf64_Mips_Internal_Rela int_rela; |
| 1695 | asymbol *sym; |
| 1696 | int n; |
| 1697 | unsigned int i; |
| 1698 | |
| 1699 | ptr = sec->orelocation[idx]; |
| 1700 | |
| 1701 | /* The address of an ELF reloc is section relative for an object |
| 1702 | file, and absolute for an executable file or shared library. |
| 1703 | The address of a BFD reloc is always section relative. */ |
| 1704 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) |
| 1705 | int_rela.r_offset = ptr->address; |
| 1706 | else |
| 1707 | int_rela.r_offset = ptr->address + sec->vma; |
| 1708 | |
| 1709 | sym = *ptr->sym_ptr_ptr; |
| 1710 | if (sym == last_sym) |
| 1711 | n = last_sym_idx; |
| 1712 | else |
| 1713 | { |
| 1714 | last_sym = sym; |
| 1715 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); |
| 1716 | if (n < 0) |
| 1717 | { |
| 1718 | *failedp = true; |
| 1719 | return; |
| 1720 | } |
| 1721 | last_sym_idx = n; |
| 1722 | } |
| 1723 | |
| 1724 | int_rela.r_sym = n; |
| 1725 | |
| 1726 | int_rela.r_addend = ptr->addend; |
| 1727 | |
| 1728 | int_rela.r_ssym = RSS_UNDEF; |
| 1729 | |
| 1730 | if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec |
| 1731 | && ! _bfd_elf_validate_reloc (abfd, ptr)) |
| 1732 | { |
| 1733 | *failedp = true; |
| 1734 | return; |
| 1735 | } |
| 1736 | |
| 1737 | int_rela.r_type = ptr->howto->type; |
| 1738 | int_rela.r_type2 = (int) R_MIPS_NONE; |
| 1739 | int_rela.r_type3 = (int) R_MIPS_NONE; |
| 1740 | |
| 1741 | for (i = 0; i < 2; i++) |
| 1742 | { |
| 1743 | arelent *r; |
| 1744 | |
| 1745 | if (idx + 1 >= sec->reloc_count) |
| 1746 | break; |
| 1747 | r = sec->orelocation[idx + 1]; |
| 1748 | if (r->address != ptr->address |
| 1749 | || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) |
| 1750 | || (*r->sym_ptr_ptr)->value != 0) |
| 1751 | break; |
| 1752 | |
| 1753 | /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ |
| 1754 | |
| 1755 | if (i == 0) |
| 1756 | int_rela.r_type2 = r->howto->type; |
| 1757 | else |
| 1758 | int_rela.r_type3 = r->howto->type; |
| 1759 | |
| 1760 | ++idx; |
| 1761 | } |
| 1762 | |
| 1763 | mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela); |
| 1764 | } |
| 1765 | |
| 1766 | BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents |
| 1767 | == (int) count); |
| 1768 | } |
| 1769 | \f |
| 1770 | /* Irix 6 defines a brand new archive map format, so that they can |
| 1771 | have archives more than 4 GB in size. */ |
| 1772 | |
| 1773 | /* Read an Irix 6 armap. */ |
| 1774 | |
| 1775 | static boolean |
| 1776 | mips_elf64_slurp_armap (abfd) |
| 1777 | bfd *abfd; |
| 1778 | { |
| 1779 | struct artdata *ardata = bfd_ardata (abfd); |
| 1780 | char nextname[17]; |
| 1781 | file_ptr arhdrpos; |
| 1782 | bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize; |
| 1783 | struct areltdata *mapdata; |
| 1784 | bfd_byte int_buf[8]; |
| 1785 | char *stringbase; |
| 1786 | bfd_byte *raw_armap = NULL; |
| 1787 | carsym *carsyms; |
| 1788 | |
| 1789 | ardata->symdefs = NULL; |
| 1790 | |
| 1791 | /* Get the name of the first element. */ |
| 1792 | arhdrpos = bfd_tell (abfd); |
| 1793 | i = bfd_read ((PTR) nextname, 1, 16, abfd); |
| 1794 | if (i == 0) |
| 1795 | return true; |
| 1796 | if (i != 16) |
| 1797 | return false; |
| 1798 | |
| 1799 | if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0) |
| 1800 | return false; |
| 1801 | |
| 1802 | /* Archives with traditional armaps are still permitted. */ |
| 1803 | if (strncmp (nextname, "/ ", 16) == 0) |
| 1804 | return bfd_slurp_armap (abfd); |
| 1805 | |
| 1806 | if (strncmp (nextname, "/SYM64/ ", 16) != 0) |
| 1807 | { |
| 1808 | bfd_has_map (abfd) = false; |
| 1809 | return true; |
| 1810 | } |
| 1811 | |
| 1812 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); |
| 1813 | if (mapdata == NULL) |
| 1814 | return false; |
| 1815 | parsed_size = mapdata->parsed_size; |
| 1816 | bfd_release (abfd, (PTR) mapdata); |
| 1817 | |
| 1818 | if (bfd_read (int_buf, 1, 8, abfd) != 8) |
| 1819 | { |
| 1820 | if (bfd_get_error () != bfd_error_system_call) |
| 1821 | bfd_set_error (bfd_error_malformed_archive); |
| 1822 | return false; |
| 1823 | } |
| 1824 | |
| 1825 | nsymz = bfd_getb64 (int_buf); |
| 1826 | stringsize = parsed_size - 8 * nsymz - 8; |
| 1827 | |
| 1828 | carsym_size = nsymz * sizeof (carsym); |
| 1829 | ptrsize = 8 * nsymz; |
| 1830 | |
| 1831 | ardata->symdefs = (carsym *) bfd_zalloc (abfd, carsym_size + stringsize + 1); |
| 1832 | if (ardata->symdefs == NULL) |
| 1833 | return false; |
| 1834 | carsyms = ardata->symdefs; |
| 1835 | stringbase = ((char *) ardata->symdefs) + carsym_size; |
| 1836 | |
| 1837 | raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize); |
| 1838 | if (raw_armap == NULL) |
| 1839 | goto error_return; |
| 1840 | |
| 1841 | if (bfd_read (raw_armap, 1, ptrsize, abfd) != ptrsize |
| 1842 | || bfd_read (stringbase, 1, stringsize, abfd) != stringsize) |
| 1843 | { |
| 1844 | if (bfd_get_error () != bfd_error_system_call) |
| 1845 | bfd_set_error (bfd_error_malformed_archive); |
| 1846 | goto error_return; |
| 1847 | } |
| 1848 | |
| 1849 | for (i = 0; i < nsymz; i++) |
| 1850 | { |
| 1851 | carsyms->file_offset = bfd_getb64 (raw_armap + i * 8); |
| 1852 | carsyms->name = stringbase; |
| 1853 | stringbase += strlen (stringbase) + 1; |
| 1854 | ++carsyms; |
| 1855 | } |
| 1856 | *stringbase = '\0'; |
| 1857 | |
| 1858 | ardata->symdef_count = nsymz; |
| 1859 | ardata->first_file_filepos = arhdrpos + sizeof (struct ar_hdr) + parsed_size; |
| 1860 | |
| 1861 | bfd_has_map (abfd) = true; |
| 1862 | bfd_release (abfd, raw_armap); |
| 1863 | |
| 1864 | return true; |
| 1865 | |
| 1866 | error_return: |
| 1867 | if (raw_armap != NULL) |
| 1868 | bfd_release (abfd, raw_armap); |
| 1869 | if (ardata->symdefs != NULL) |
| 1870 | bfd_release (abfd, ardata->symdefs); |
| 1871 | return false; |
| 1872 | } |
| 1873 | |
| 1874 | /* Write out an Irix 6 armap. The Irix 6 tools are supposed to be |
| 1875 | able to handle ordinary ELF armaps, but at least on Irix 6.2 the |
| 1876 | linker crashes. */ |
| 1877 | |
| 1878 | static boolean |
| 1879 | mips_elf64_write_armap (arch, elength, map, symbol_count, stridx) |
| 1880 | bfd *arch; |
| 1881 | unsigned int elength; |
| 1882 | struct orl *map; |
| 1883 | unsigned int symbol_count; |
| 1884 | int stridx; |
| 1885 | { |
| 1886 | unsigned int ranlibsize = (symbol_count * 8) + 8; |
| 1887 | unsigned int stringsize = stridx; |
| 1888 | unsigned int mapsize = stringsize + ranlibsize; |
| 1889 | file_ptr archive_member_file_ptr; |
| 1890 | bfd *current = arch->archive_head; |
| 1891 | unsigned int count; |
| 1892 | struct ar_hdr hdr; |
| 1893 | unsigned int i; |
| 1894 | int padding; |
| 1895 | bfd_byte buf[8]; |
| 1896 | |
| 1897 | padding = BFD_ALIGN (mapsize, 8) - mapsize; |
| 1898 | mapsize += padding; |
| 1899 | |
| 1900 | /* work out where the first object file will go in the archive */ |
| 1901 | archive_member_file_ptr = (mapsize |
| 1902 | + elength |
| 1903 | + sizeof (struct ar_hdr) |
| 1904 | + SARMAG); |
| 1905 | |
| 1906 | memset ((char *) (&hdr), 0, sizeof (struct ar_hdr)); |
| 1907 | strcpy (hdr.ar_name, "/SYM64/"); |
| 1908 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); |
| 1909 | sprintf (hdr.ar_date, "%ld", (long) time (NULL)); |
| 1910 | /* This, at least, is what Intel coff sets the values to.: */ |
| 1911 | sprintf ((hdr.ar_uid), "%d", 0); |
| 1912 | sprintf ((hdr.ar_gid), "%d", 0); |
| 1913 | sprintf ((hdr.ar_mode), "%-7o", (unsigned) 0); |
| 1914 | strncpy (hdr.ar_fmag, ARFMAG, 2); |
| 1915 | |
| 1916 | for (i = 0; i < sizeof (struct ar_hdr); i++) |
| 1917 | if (((char *) (&hdr))[i] == '\0') |
| 1918 | (((char *) (&hdr))[i]) = ' '; |
| 1919 | |
| 1920 | /* Write the ar header for this item and the number of symbols */ |
| 1921 | |
| 1922 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), arch) |
| 1923 | != sizeof (struct ar_hdr)) |
| 1924 | return false; |
| 1925 | |
| 1926 | bfd_putb64 (symbol_count, buf); |
| 1927 | if (bfd_write (buf, 1, 8, arch) != 8) |
| 1928 | return false; |
| 1929 | |
| 1930 | /* Two passes, first write the file offsets for each symbol - |
| 1931 | remembering that each offset is on a two byte boundary. */ |
| 1932 | |
| 1933 | /* Write out the file offset for the file associated with each |
| 1934 | symbol, and remember to keep the offsets padded out. */ |
| 1935 | |
| 1936 | current = arch->archive_head; |
| 1937 | count = 0; |
| 1938 | while (current != (bfd *) NULL && count < symbol_count) |
| 1939 | { |
| 1940 | /* For each symbol which is used defined in this object, write out |
| 1941 | the object file's address in the archive */ |
| 1942 | |
| 1943 | while (((bfd *) (map[count]).pos) == current) |
| 1944 | { |
| 1945 | bfd_putb64 (archive_member_file_ptr, buf); |
| 1946 | if (bfd_write (buf, 1, 8, arch) != 8) |
| 1947 | return false; |
| 1948 | count++; |
| 1949 | } |
| 1950 | /* Add size of this archive entry */ |
| 1951 | archive_member_file_ptr += (arelt_size (current) |
| 1952 | + sizeof (struct ar_hdr)); |
| 1953 | /* remember about the even alignment */ |
| 1954 | archive_member_file_ptr += archive_member_file_ptr % 2; |
| 1955 | current = current->next; |
| 1956 | } |
| 1957 | |
| 1958 | /* now write the strings themselves */ |
| 1959 | for (count = 0; count < symbol_count; count++) |
| 1960 | { |
| 1961 | size_t len = strlen (*map[count].name) + 1; |
| 1962 | |
| 1963 | if (bfd_write (*map[count].name, 1, len, arch) != len) |
| 1964 | return false; |
| 1965 | } |
| 1966 | |
| 1967 | /* The spec says that this should be padded to an 8 byte boundary. |
| 1968 | However, the Irix 6.2 tools do not appear to do this. */ |
| 1969 | while (padding != 0) |
| 1970 | { |
| 1971 | if (bfd_write ("", 1, 1, arch) != 1) |
| 1972 | return false; |
| 1973 | --padding; |
| 1974 | } |
| 1975 | |
| 1976 | return true; |
| 1977 | } |
| 1978 | \f |
| 1979 | /* ECOFF swapping routines. These are used when dealing with the |
| 1980 | .mdebug section, which is in the ECOFF debugging format. */ |
| 1981 | static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap = |
| 1982 | { |
| 1983 | /* Symbol table magic number. */ |
| 1984 | magicSym2, |
| 1985 | /* Alignment of debugging information. E.g., 4. */ |
| 1986 | 8, |
| 1987 | /* Sizes of external symbolic information. */ |
| 1988 | sizeof (struct hdr_ext), |
| 1989 | sizeof (struct dnr_ext), |
| 1990 | sizeof (struct pdr_ext), |
| 1991 | sizeof (struct sym_ext), |
| 1992 | sizeof (struct opt_ext), |
| 1993 | sizeof (struct fdr_ext), |
| 1994 | sizeof (struct rfd_ext), |
| 1995 | sizeof (struct ext_ext), |
| 1996 | /* Functions to swap in external symbolic data. */ |
| 1997 | ecoff_swap_hdr_in, |
| 1998 | ecoff_swap_dnr_in, |
| 1999 | ecoff_swap_pdr_in, |
| 2000 | ecoff_swap_sym_in, |
| 2001 | ecoff_swap_opt_in, |
| 2002 | ecoff_swap_fdr_in, |
| 2003 | ecoff_swap_rfd_in, |
| 2004 | ecoff_swap_ext_in, |
| 2005 | _bfd_ecoff_swap_tir_in, |
| 2006 | _bfd_ecoff_swap_rndx_in, |
| 2007 | /* Functions to swap out external symbolic data. */ |
| 2008 | ecoff_swap_hdr_out, |
| 2009 | ecoff_swap_dnr_out, |
| 2010 | ecoff_swap_pdr_out, |
| 2011 | ecoff_swap_sym_out, |
| 2012 | ecoff_swap_opt_out, |
| 2013 | ecoff_swap_fdr_out, |
| 2014 | ecoff_swap_rfd_out, |
| 2015 | ecoff_swap_ext_out, |
| 2016 | _bfd_ecoff_swap_tir_out, |
| 2017 | _bfd_ecoff_swap_rndx_out, |
| 2018 | /* Function to read in symbolic data. */ |
| 2019 | _bfd_mips_elf_read_ecoff_info |
| 2020 | }; |
| 2021 | \f |
| 2022 | /* Relocations in the 64 bit MIPS ELF ABI are more complex than in |
| 2023 | standard ELF. This structure is used to redirect the relocation |
| 2024 | handling routines. */ |
| 2025 | |
| 2026 | const struct elf_size_info mips_elf64_size_info = |
| 2027 | { |
| 2028 | sizeof (Elf64_External_Ehdr), |
| 2029 | sizeof (Elf64_External_Phdr), |
| 2030 | sizeof (Elf64_External_Shdr), |
| 2031 | sizeof (Elf64_Mips_External_Rel), |
| 2032 | sizeof (Elf64_Mips_External_Rela), |
| 2033 | sizeof (Elf64_External_Sym), |
| 2034 | sizeof (Elf64_External_Dyn), |
| 2035 | sizeof (Elf_External_Note), |
| 2036 | 4, /* hash-table entry size */ |
| 2037 | 3, /* internal relocations per external relocations */ |
| 2038 | 64, /* arch_size */ |
| 2039 | 8, /* file_align */ |
| 2040 | ELFCLASS64, |
| 2041 | EV_CURRENT, |
| 2042 | bfd_elf64_write_out_phdrs, |
| 2043 | bfd_elf64_write_shdrs_and_ehdr, |
| 2044 | mips_elf64_write_relocs, |
| 2045 | bfd_elf64_swap_symbol_out, |
| 2046 | mips_elf64_slurp_reloc_table, |
| 2047 | bfd_elf64_slurp_symbol_table, |
| 2048 | bfd_elf64_swap_dyn_in, |
| 2049 | bfd_elf64_swap_dyn_out, |
| 2050 | mips_elf64_be_swap_reloc_in, |
| 2051 | mips_elf64_be_swap_reloc_out, |
| 2052 | mips_elf64_be_swap_reloca_in, |
| 2053 | mips_elf64_be_swap_reloca_out |
| 2054 | }; |
| 2055 | |
| 2056 | #define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec |
| 2057 | #define TARGET_LITTLE_NAME "elf64-littlemips" |
| 2058 | #define TARGET_BIG_SYM bfd_elf64_bigmips_vec |
| 2059 | #define TARGET_BIG_NAME "elf64-bigmips" |
| 2060 | #define ELF_ARCH bfd_arch_mips |
| 2061 | #define ELF_MACHINE_CODE EM_MIPS |
| 2062 | |
| 2063 | #define ELF_MAXPAGESIZE 0x1000 |
| 2064 | |
| 2065 | #define elf_backend_collect true |
| 2066 | #define elf_backend_type_change_ok true |
| 2067 | #define elf_backend_can_gc_sections true |
| 2068 | #define elf_backend_size_info mips_elf64_size_info |
| 2069 | #define elf_backend_object_p _bfd_mips_elf_object_p |
| 2070 | #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr |
| 2071 | #define elf_backend_fake_sections _bfd_mips_elf_fake_sections |
| 2072 | #define elf_backend_section_from_bfd_section \ |
| 2073 | _bfd_mips_elf_section_from_bfd_section |
| 2074 | #define elf_backend_section_processing _bfd_mips_elf_section_processing |
| 2075 | #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing |
| 2076 | #define elf_backend_additional_program_headers \ |
| 2077 | _bfd_mips_elf_additional_program_headers |
| 2078 | #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map |
| 2079 | #define elf_backend_final_write_processing \ |
| 2080 | _bfd_mips_elf_final_write_processing |
| 2081 | #define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap |
| 2082 | #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook |
| 2083 | #define elf_backend_create_dynamic_sections \ |
| 2084 | _bfd_mips_elf_create_dynamic_sections |
| 2085 | #define elf_backend_check_relocs _bfd_mips_elf_check_relocs |
| 2086 | #define elf_backend_adjust_dynamic_symbol \ |
| 2087 | _bfd_mips_elf_adjust_dynamic_symbol |
| 2088 | #define elf_backend_always_size_sections \ |
| 2089 | _bfd_mips_elf_always_size_sections |
| 2090 | #define elf_backend_size_dynamic_sections \ |
| 2091 | _bfd_mips_elf_size_dynamic_sections |
| 2092 | #define elf_backend_relocate_section _bfd_mips_elf_relocate_section |
| 2093 | #define elf_backend_link_output_symbol_hook \ |
| 2094 | _bfd_mips_elf_link_output_symbol_hook |
| 2095 | #define elf_backend_finish_dynamic_symbol \ |
| 2096 | _bfd_mips_elf_finish_dynamic_symbol |
| 2097 | #define elf_backend_finish_dynamic_sections \ |
| 2098 | _bfd_mips_elf_finish_dynamic_sections |
| 2099 | #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook |
| 2100 | #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook |
| 2101 | #define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO) |
| 2102 | #define elf_backend_plt_header_size 0 |
| 2103 | #define elf_backend_may_use_rel_p 1 |
| 2104 | |
| 2105 | /* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit |
| 2106 | MIPS-specific function only applies to IRIX5, which had no 64-bit |
| 2107 | ABI. */ |
| 2108 | #define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line |
| 2109 | #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents |
| 2110 | #define bfd_elf64_bfd_link_hash_table_create \ |
| 2111 | _bfd_mips_elf_link_hash_table_create |
| 2112 | #define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link |
| 2113 | #define bfd_elf64_bfd_copy_private_bfd_data \ |
| 2114 | _bfd_mips_elf_copy_private_bfd_data |
| 2115 | #define bfd_elf64_bfd_merge_private_bfd_data \ |
| 2116 | _bfd_mips_elf_merge_private_bfd_data |
| 2117 | #define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags |
| 2118 | #define bfd_elf64_bfd_print_private_bfd_data \ |
| 2119 | _bfd_mips_elf_print_private_bfd_data |
| 2120 | |
| 2121 | #define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound |
| 2122 | #define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup |
| 2123 | #define bfd_elf64_archive_functions |
| 2124 | #define bfd_elf64_archive_slurp_armap mips_elf64_slurp_armap |
| 2125 | #define bfd_elf64_archive_slurp_extended_name_table \ |
| 2126 | _bfd_archive_coff_slurp_extended_name_table |
| 2127 | #define bfd_elf64_archive_construct_extended_name_table \ |
| 2128 | _bfd_archive_coff_construct_extended_name_table |
| 2129 | #define bfd_elf64_archive_truncate_arname \ |
| 2130 | _bfd_archive_coff_truncate_arname |
| 2131 | #define bfd_elf64_archive_write_armap mips_elf64_write_armap |
| 2132 | #define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr |
| 2133 | #define bfd_elf64_archive_openr_next_archived_file \ |
| 2134 | _bfd_archive_coff_openr_next_archived_file |
| 2135 | #define bfd_elf64_archive_get_elt_at_index \ |
| 2136 | _bfd_archive_coff_get_elt_at_index |
| 2137 | #define bfd_elf64_archive_generic_stat_arch_elt \ |
| 2138 | _bfd_archive_coff_generic_stat_arch_elt |
| 2139 | #define bfd_elf64_archive_update_armap_timestamp \ |
| 2140 | _bfd_archive_coff_update_armap_timestamp |
| 2141 | |
| 2142 | #include "elf64-target.h" |
| 2143 | |
| 2144 | /* Support for traditional mips targets */ |
| 2145 | |
| 2146 | #define INCLUDED_TARGET_FILE /* More a type of flag */ |
| 2147 | |
| 2148 | #undef TARGET_LITTLE_SYM |
| 2149 | #undef TARGET_LITTLE_NAME |
| 2150 | #undef TARGET_BIG_SYM |
| 2151 | #undef TARGET_BIG_NAME |
| 2152 | |
| 2153 | #define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_vec |
| 2154 | #define TARGET_LITTLE_NAME "elf64-tradlittlemips" |
| 2155 | #define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec |
| 2156 | #define TARGET_BIG_NAME "elf64-tradbigmips" |
| 2157 | |
| 2158 | /* Include the target file again for this target */ |
| 2159 | #include "elf64-target.h" |