| 1 | /* PowerPC-specific support for 32-bit ELF |
| 2 | Copyright 1994, 1995, 1996 Free Software Foundation, Inc. |
| 3 | Written by 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 is based on a preliminary PowerPC ELF ABI. The |
| 22 | information may not match the final PowerPC ELF ABI. It includes |
| 23 | suggestions from the in-progress Embedded PowerPC ABI, and that |
| 24 | information may also not match. */ |
| 25 | |
| 26 | #include "bfd.h" |
| 27 | #include "sysdep.h" |
| 28 | #include "bfdlink.h" |
| 29 | #include "libbfd.h" |
| 30 | #include "elf-bfd.h" |
| 31 | #include "elf/ppc.h" |
| 32 | |
| 33 | #define USE_RELA /* we want RELA relocations, not REL */ |
| 34 | |
| 35 | /* PowerPC relocations defined by the ABIs */ |
| 36 | enum ppc_reloc_type |
| 37 | { |
| 38 | R_PPC_NONE = 0, |
| 39 | R_PPC_ADDR32 = 1, |
| 40 | R_PPC_ADDR24 = 2, |
| 41 | R_PPC_ADDR16 = 3, |
| 42 | R_PPC_ADDR16_LO = 4, |
| 43 | R_PPC_ADDR16_HI = 5, |
| 44 | R_PPC_ADDR16_HA = 6, |
| 45 | R_PPC_ADDR14 = 7, |
| 46 | R_PPC_ADDR14_BRTAKEN = 8, |
| 47 | R_PPC_ADDR14_BRNTAKEN = 9, |
| 48 | R_PPC_REL24 = 10, |
| 49 | R_PPC_REL14 = 11, |
| 50 | R_PPC_REL14_BRTAKEN = 12, |
| 51 | R_PPC_REL14_BRNTAKEN = 13, |
| 52 | R_PPC_GOT16 = 14, |
| 53 | R_PPC_GOT16_LO = 15, |
| 54 | R_PPC_GOT16_HI = 16, |
| 55 | R_PPC_GOT16_HA = 17, |
| 56 | R_PPC_PLTREL24 = 18, |
| 57 | R_PPC_COPY = 19, |
| 58 | R_PPC_GLOB_DAT = 20, |
| 59 | R_PPC_JMP_SLOT = 21, |
| 60 | R_PPC_RELATIVE = 22, |
| 61 | R_PPC_LOCAL24PC = 23, |
| 62 | R_PPC_UADDR32 = 24, |
| 63 | R_PPC_UADDR16 = 25, |
| 64 | R_PPC_REL32 = 26, |
| 65 | R_PPC_PLT32 = 27, |
| 66 | R_PPC_PLTREL32 = 28, |
| 67 | R_PPC_PLT16_LO = 29, |
| 68 | R_PPC_PLT16_HI = 30, |
| 69 | R_PPC_PLT16_HA = 31, |
| 70 | R_PPC_SDAREL16 = 32, |
| 71 | R_PPC_SECTOFF = 33, |
| 72 | R_PPC_SECTOFF_LO = 34, |
| 73 | R_PPC_SECTOFF_HI = 35, |
| 74 | R_PPC_SECTOFF_HA = 36, |
| 75 | |
| 76 | /* The remaining relocs are from the Embedded ELF ABI, and are not |
| 77 | in the SVR4 ELF ABI. */ |
| 78 | R_PPC_EMB_NADDR32 = 101, |
| 79 | R_PPC_EMB_NADDR16 = 102, |
| 80 | R_PPC_EMB_NADDR16_LO = 103, |
| 81 | R_PPC_EMB_NADDR16_HI = 104, |
| 82 | R_PPC_EMB_NADDR16_HA = 105, |
| 83 | R_PPC_EMB_SDAI16 = 106, |
| 84 | R_PPC_EMB_SDA2I16 = 107, |
| 85 | R_PPC_EMB_SDA2REL = 108, |
| 86 | R_PPC_EMB_SDA21 = 109, |
| 87 | R_PPC_EMB_MRKREF = 110, |
| 88 | R_PPC_EMB_RELSEC16 = 111, |
| 89 | R_PPC_EMB_RELST_LO = 112, |
| 90 | R_PPC_EMB_RELST_HI = 113, |
| 91 | R_PPC_EMB_RELST_HA = 114, |
| 92 | R_PPC_EMB_BIT_FLD = 115, |
| 93 | R_PPC_EMB_RELSDA = 116, |
| 94 | |
| 95 | /* This is a phony reloc to handle any old fashioned TOC16 references |
| 96 | that may still be in object files. */ |
| 97 | R_PPC_TOC16 = 255, |
| 98 | |
| 99 | R_PPC_max |
| 100 | }; |
| 101 | |
| 102 | static reloc_howto_type *ppc_elf_reloc_type_lookup |
| 103 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); |
| 104 | static void ppc_elf_info_to_howto |
| 105 | PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst)); |
| 106 | static void ppc_elf_howto_init PARAMS ((void)); |
| 107 | static boolean ppc_elf_set_private_flags PARAMS ((bfd *, flagword)); |
| 108 | static boolean ppc_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
| 109 | static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *)); |
| 110 | |
| 111 | static boolean ppc_elf_section_from_shdr PARAMS ((bfd *, |
| 112 | Elf32_Internal_Shdr *, |
| 113 | char *)); |
| 114 | |
| 115 | static elf_linker_section_t *ppc_elf_create_linker_section |
| 116 | PARAMS ((bfd *abfd, |
| 117 | struct bfd_link_info *info, |
| 118 | enum elf_linker_section_enum)); |
| 119 | |
| 120 | static boolean ppc_elf_check_relocs PARAMS ((bfd *, |
| 121 | struct bfd_link_info *, |
| 122 | asection *, |
| 123 | const Elf_Internal_Rela *)); |
| 124 | |
| 125 | static boolean ppc_elf_adjust_dynamic_symbol PARAMS ((struct bfd_link_info *, |
| 126 | struct elf_link_hash_entry *)); |
| 127 | |
| 128 | static boolean ppc_elf_adjust_dynindx PARAMS ((struct elf_link_hash_entry *, PTR)); |
| 129 | |
| 130 | static boolean ppc_elf_size_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *)); |
| 131 | |
| 132 | static boolean ppc_elf_relocate_section PARAMS ((bfd *, |
| 133 | struct bfd_link_info *info, |
| 134 | bfd *, |
| 135 | asection *, |
| 136 | bfd_byte *, |
| 137 | Elf_Internal_Rela *relocs, |
| 138 | Elf_Internal_Sym *local_syms, |
| 139 | asection **)); |
| 140 | |
| 141 | static boolean ppc_elf_finish_dynamic_symbol PARAMS ((bfd *, |
| 142 | struct bfd_link_info *, |
| 143 | struct elf_link_hash_entry *, |
| 144 | Elf_Internal_Sym *)); |
| 145 | |
| 146 | static boolean ppc_elf_finish_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *)); |
| 147 | |
| 148 | #define BRANCH_PREDICT_BIT 0x200000 |
| 149 | |
| 150 | /* The name of the dynamic interpreter. This is put in the .interp |
| 151 | section. */ |
| 152 | |
| 153 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
| 154 | |
| 155 | \f |
| 156 | static reloc_howto_type *ppc_elf_howto_table[ (int)R_PPC_max ]; |
| 157 | |
| 158 | static reloc_howto_type ppc_elf_howto_raw[] = |
| 159 | { |
| 160 | /* This reloc does nothing. */ |
| 161 | HOWTO (R_PPC_NONE, /* type */ |
| 162 | 0, /* rightshift */ |
| 163 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 164 | 32, /* bitsize */ |
| 165 | false, /* pc_relative */ |
| 166 | 0, /* bitpos */ |
| 167 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 168 | bfd_elf_generic_reloc, /* special_function */ |
| 169 | "R_PPC_NONE", /* name */ |
| 170 | false, /* partial_inplace */ |
| 171 | 0, /* src_mask */ |
| 172 | 0, /* dst_mask */ |
| 173 | false), /* pcrel_offset */ |
| 174 | |
| 175 | /* A standard 32 bit relocation. */ |
| 176 | HOWTO (R_PPC_ADDR32, /* type */ |
| 177 | 0, /* rightshift */ |
| 178 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 179 | 32, /* bitsize */ |
| 180 | false, /* pc_relative */ |
| 181 | 0, /* bitpos */ |
| 182 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 183 | bfd_elf_generic_reloc, /* special_function */ |
| 184 | "R_PPC_ADDR32", /* name */ |
| 185 | false, /* partial_inplace */ |
| 186 | 0, /* src_mask */ |
| 187 | 0xffffffff, /* dst_mask */ |
| 188 | false), /* pcrel_offset */ |
| 189 | |
| 190 | /* An absolute 26 bit branch; the lower two bits must be zero. |
| 191 | FIXME: we don't check that, we just clear them. */ |
| 192 | HOWTO (R_PPC_ADDR24, /* type */ |
| 193 | 0, /* rightshift */ |
| 194 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 195 | 26, /* bitsize */ |
| 196 | false, /* pc_relative */ |
| 197 | 0, /* bitpos */ |
| 198 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 199 | bfd_elf_generic_reloc, /* special_function */ |
| 200 | "R_PPC_ADDR24", /* name */ |
| 201 | false, /* partial_inplace */ |
| 202 | 0, /* src_mask */ |
| 203 | 0x3fffffc, /* dst_mask */ |
| 204 | false), /* pcrel_offset */ |
| 205 | |
| 206 | /* A standard 16 bit relocation. */ |
| 207 | HOWTO (R_PPC_ADDR16, /* type */ |
| 208 | 0, /* rightshift */ |
| 209 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 210 | 16, /* bitsize */ |
| 211 | false, /* pc_relative */ |
| 212 | 0, /* bitpos */ |
| 213 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 214 | bfd_elf_generic_reloc, /* special_function */ |
| 215 | "R_PPC_ADDR16", /* name */ |
| 216 | false, /* partial_inplace */ |
| 217 | 0, /* src_mask */ |
| 218 | 0xffff, /* dst_mask */ |
| 219 | false), /* pcrel_offset */ |
| 220 | |
| 221 | /* A 16 bit relocation without overflow. */ |
| 222 | HOWTO (R_PPC_ADDR16_LO, /* type */ |
| 223 | 0, /* rightshift */ |
| 224 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 225 | 16, /* bitsize */ |
| 226 | false, /* pc_relative */ |
| 227 | 0, /* bitpos */ |
| 228 | complain_overflow_dont,/* complain_on_overflow */ |
| 229 | bfd_elf_generic_reloc, /* special_function */ |
| 230 | "R_PPC_ADDR16_LO", /* name */ |
| 231 | false, /* partial_inplace */ |
| 232 | 0, /* src_mask */ |
| 233 | 0xffff, /* dst_mask */ |
| 234 | false), /* pcrel_offset */ |
| 235 | |
| 236 | /* The high order 16 bits of an address. */ |
| 237 | HOWTO (R_PPC_ADDR16_HI, /* type */ |
| 238 | 16, /* rightshift */ |
| 239 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 240 | 16, /* bitsize */ |
| 241 | false, /* pc_relative */ |
| 242 | 0, /* bitpos */ |
| 243 | complain_overflow_dont, /* complain_on_overflow */ |
| 244 | bfd_elf_generic_reloc, /* special_function */ |
| 245 | "R_PPC_ADDR16_HI", /* name */ |
| 246 | false, /* partial_inplace */ |
| 247 | 0, /* src_mask */ |
| 248 | 0xffff, /* dst_mask */ |
| 249 | false), /* pcrel_offset */ |
| 250 | |
| 251 | /* The high order 16 bits of an address, plus 1 if the contents of |
| 252 | the low 16 bits, treated as a signed number, is negative. */ |
| 253 | HOWTO (R_PPC_ADDR16_HA, /* type */ |
| 254 | 16, /* rightshift */ |
| 255 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 256 | 16, /* bitsize */ |
| 257 | false, /* pc_relative */ |
| 258 | 0, /* bitpos */ |
| 259 | complain_overflow_dont, /* complain_on_overflow */ |
| 260 | bfd_elf_generic_reloc, /* special_function */ |
| 261 | "R_PPC_ADDR16_HA", /* name */ |
| 262 | false, /* partial_inplace */ |
| 263 | 0, /* src_mask */ |
| 264 | 0xffff, /* dst_mask */ |
| 265 | false), /* pcrel_offset */ |
| 266 | |
| 267 | /* An absolute 16 bit branch; the lower two bits must be zero. |
| 268 | FIXME: we don't check that, we just clear them. */ |
| 269 | HOWTO (R_PPC_ADDR14, /* type */ |
| 270 | 0, /* rightshift */ |
| 271 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 272 | 16, /* bitsize */ |
| 273 | false, /* pc_relative */ |
| 274 | 0, /* bitpos */ |
| 275 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 276 | bfd_elf_generic_reloc, /* special_function */ |
| 277 | "R_PPC_ADDR14", /* name */ |
| 278 | false, /* partial_inplace */ |
| 279 | 0, /* src_mask */ |
| 280 | 0xfffc, /* dst_mask */ |
| 281 | false), /* pcrel_offset */ |
| 282 | |
| 283 | /* An absolute 16 bit branch, for which bit 10 should be set to |
| 284 | indicate that the branch is expected to be taken. The lower two |
| 285 | bits must be zero. */ |
| 286 | HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ |
| 287 | 0, /* rightshift */ |
| 288 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 289 | 16, /* bitsize */ |
| 290 | false, /* pc_relative */ |
| 291 | 0, /* bitpos */ |
| 292 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 293 | bfd_elf_generic_reloc, /* special_function */ |
| 294 | "R_PPC_ADDR14_BRTAKEN",/* name */ |
| 295 | false, /* partial_inplace */ |
| 296 | 0, /* src_mask */ |
| 297 | 0xfffc, /* dst_mask */ |
| 298 | false), /* pcrel_offset */ |
| 299 | |
| 300 | /* An absolute 16 bit branch, for which bit 10 should be set to |
| 301 | indicate that the branch is not expected to be taken. The lower |
| 302 | two bits must be zero. */ |
| 303 | HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ |
| 304 | 0, /* rightshift */ |
| 305 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 306 | 16, /* bitsize */ |
| 307 | false, /* pc_relative */ |
| 308 | 0, /* bitpos */ |
| 309 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 310 | bfd_elf_generic_reloc, /* special_function */ |
| 311 | "R_PPC_ADDR14_BRNTAKEN",/* name */ |
| 312 | false, /* partial_inplace */ |
| 313 | 0, /* src_mask */ |
| 314 | 0xfffc, /* dst_mask */ |
| 315 | false), /* pcrel_offset */ |
| 316 | |
| 317 | /* A relative 26 bit branch; the lower two bits must be zero. */ |
| 318 | HOWTO (R_PPC_REL24, /* type */ |
| 319 | 0, /* rightshift */ |
| 320 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 321 | 26, /* bitsize */ |
| 322 | true, /* pc_relative */ |
| 323 | 0, /* bitpos */ |
| 324 | complain_overflow_signed, /* complain_on_overflow */ |
| 325 | bfd_elf_generic_reloc, /* special_function */ |
| 326 | "R_PPC_REL24", /* name */ |
| 327 | false, /* partial_inplace */ |
| 328 | 0, /* src_mask */ |
| 329 | 0x3fffffc, /* dst_mask */ |
| 330 | true), /* pcrel_offset */ |
| 331 | |
| 332 | /* A relative 16 bit branch; the lower two bits must be zero. */ |
| 333 | HOWTO (R_PPC_REL14, /* type */ |
| 334 | 0, /* rightshift */ |
| 335 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 336 | 16, /* bitsize */ |
| 337 | true, /* pc_relative */ |
| 338 | 0, /* bitpos */ |
| 339 | complain_overflow_signed, /* complain_on_overflow */ |
| 340 | bfd_elf_generic_reloc, /* special_function */ |
| 341 | "R_PPC_REL14", /* name */ |
| 342 | false, /* partial_inplace */ |
| 343 | 0, /* src_mask */ |
| 344 | 0xfffc, /* dst_mask */ |
| 345 | true), /* pcrel_offset */ |
| 346 | |
| 347 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
| 348 | the branch is expected to be taken. The lower two bits must be |
| 349 | zero. */ |
| 350 | HOWTO (R_PPC_REL14_BRTAKEN, /* type */ |
| 351 | 0, /* rightshift */ |
| 352 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 353 | 16, /* bitsize */ |
| 354 | true, /* pc_relative */ |
| 355 | 0, /* bitpos */ |
| 356 | complain_overflow_signed, /* complain_on_overflow */ |
| 357 | bfd_elf_generic_reloc, /* special_function */ |
| 358 | "R_PPC_REL14_BRTAKEN", /* name */ |
| 359 | false, /* partial_inplace */ |
| 360 | 0, /* src_mask */ |
| 361 | 0xfffc, /* dst_mask */ |
| 362 | true), /* pcrel_offset */ |
| 363 | |
| 364 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
| 365 | the branch is not expected to be taken. The lower two bits must |
| 366 | be zero. */ |
| 367 | HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ |
| 368 | 0, /* rightshift */ |
| 369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 370 | 16, /* bitsize */ |
| 371 | true, /* pc_relative */ |
| 372 | 0, /* bitpos */ |
| 373 | complain_overflow_signed, /* complain_on_overflow */ |
| 374 | bfd_elf_generic_reloc, /* special_function */ |
| 375 | "R_PPC_REL14_BRNTAKEN",/* name */ |
| 376 | false, /* partial_inplace */ |
| 377 | 0, /* src_mask */ |
| 378 | 0xfffc, /* dst_mask */ |
| 379 | true), /* pcrel_offset */ |
| 380 | |
| 381 | /* Like R_PPC_ADDR16, but referring to the GOT table entry for the |
| 382 | symbol. */ |
| 383 | HOWTO (R_PPC_GOT16, /* type */ |
| 384 | 0, /* rightshift */ |
| 385 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 386 | 16, /* bitsize */ |
| 387 | false, /* pc_relative */ |
| 388 | 0, /* bitpos */ |
| 389 | complain_overflow_signed, /* complain_on_overflow */ |
| 390 | bfd_elf_generic_reloc, /* special_function */ |
| 391 | "R_PPC_GOT16", /* name */ |
| 392 | false, /* partial_inplace */ |
| 393 | 0, /* src_mask */ |
| 394 | 0xffff, /* dst_mask */ |
| 395 | false), /* pcrel_offset */ |
| 396 | |
| 397 | /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for |
| 398 | the symbol. */ |
| 399 | HOWTO (R_PPC_GOT16_LO, /* type */ |
| 400 | 0, /* rightshift */ |
| 401 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 402 | 16, /* bitsize */ |
| 403 | false, /* pc_relative */ |
| 404 | 0, /* bitpos */ |
| 405 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 406 | bfd_elf_generic_reloc, /* special_function */ |
| 407 | "R_PPC_GOT16_LO", /* name */ |
| 408 | false, /* partial_inplace */ |
| 409 | 0, /* src_mask */ |
| 410 | 0xffff, /* dst_mask */ |
| 411 | false), /* pcrel_offset */ |
| 412 | |
| 413 | /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for |
| 414 | the symbol. */ |
| 415 | HOWTO (R_PPC_GOT16_HI, /* type */ |
| 416 | 16, /* rightshift */ |
| 417 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 418 | 16, /* bitsize */ |
| 419 | false, /* pc_relative */ |
| 420 | 0, /* bitpos */ |
| 421 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 422 | bfd_elf_generic_reloc, /* special_function */ |
| 423 | "R_PPC_GOT16_HI", /* name */ |
| 424 | false, /* partial_inplace */ |
| 425 | 0, /* src_mask */ |
| 426 | 0xffff, /* dst_mask */ |
| 427 | false), /* pcrel_offset */ |
| 428 | |
| 429 | /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for |
| 430 | the symbol. FIXME: Not supported. */ |
| 431 | HOWTO (R_PPC_GOT16_HA, /* type */ |
| 432 | 0, /* rightshift */ |
| 433 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 434 | 16, /* bitsize */ |
| 435 | false, /* pc_relative */ |
| 436 | 0, /* bitpos */ |
| 437 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 438 | bfd_elf_generic_reloc, /* special_function */ |
| 439 | "R_PPC_GOT16_HA", /* name */ |
| 440 | false, /* partial_inplace */ |
| 441 | 0, /* src_mask */ |
| 442 | 0xffff, /* dst_mask */ |
| 443 | false), /* pcrel_offset */ |
| 444 | |
| 445 | /* Like R_PPC_REL24, but referring to the procedure linkage table |
| 446 | entry for the symbol. FIXME: Not supported. */ |
| 447 | HOWTO (R_PPC_PLTREL24, /* type */ |
| 448 | 0, /* rightshift */ |
| 449 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 450 | 26, /* bitsize */ |
| 451 | true, /* pc_relative */ |
| 452 | 0, /* bitpos */ |
| 453 | complain_overflow_signed, /* complain_on_overflow */ |
| 454 | bfd_elf_generic_reloc, /* special_function */ |
| 455 | "R_PPC_PLTREL24", /* name */ |
| 456 | false, /* partial_inplace */ |
| 457 | 0, /* src_mask */ |
| 458 | 0x3fffffc, /* dst_mask */ |
| 459 | true), /* pcrel_offset */ |
| 460 | |
| 461 | /* This is used only by the dynamic linker. The symbol should exist |
| 462 | both in the object being run and in some shared library. The |
| 463 | dynamic linker copies the data addressed by the symbol from the |
| 464 | shared library into the object. I have no idea what the purpose |
| 465 | of this is. */ |
| 466 | HOWTO (R_PPC_COPY, /* type */ |
| 467 | 0, /* rightshift */ |
| 468 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 469 | 32, /* bitsize */ |
| 470 | false, /* pc_relative */ |
| 471 | 0, /* bitpos */ |
| 472 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 473 | bfd_elf_generic_reloc, /* special_function */ |
| 474 | "R_PPC_COPY", /* name */ |
| 475 | false, /* partial_inplace */ |
| 476 | 0, /* src_mask */ |
| 477 | 0, /* dst_mask */ |
| 478 | false), /* pcrel_offset */ |
| 479 | |
| 480 | /* Like R_PPC_ADDR32, but used when setting global offset table |
| 481 | entries. */ |
| 482 | HOWTO (R_PPC_GLOB_DAT, /* type */ |
| 483 | 0, /* rightshift */ |
| 484 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 485 | 32, /* bitsize */ |
| 486 | false, /* pc_relative */ |
| 487 | 0, /* bitpos */ |
| 488 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 489 | bfd_elf_generic_reloc, /* special_function */ |
| 490 | "R_PPC_GLOB_DAT", /* name */ |
| 491 | false, /* partial_inplace */ |
| 492 | 0, /* src_mask */ |
| 493 | 0xffffffff, /* dst_mask */ |
| 494 | false), /* pcrel_offset */ |
| 495 | |
| 496 | /* Marks a procedure linkage table entry for a symbol. */ |
| 497 | HOWTO (R_PPC_JMP_SLOT, /* type */ |
| 498 | 0, /* rightshift */ |
| 499 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 500 | 32, /* bitsize */ |
| 501 | false, /* pc_relative */ |
| 502 | 0, /* bitpos */ |
| 503 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 504 | bfd_elf_generic_reloc, /* special_function */ |
| 505 | "R_PPC_JMP_SLOT", /* name */ |
| 506 | false, /* partial_inplace */ |
| 507 | 0, /* src_mask */ |
| 508 | 0, /* dst_mask */ |
| 509 | false), /* pcrel_offset */ |
| 510 | |
| 511 | /* Used only by the dynamic linker. When the object is run, this |
| 512 | longword is set to the load address of the object, plus the |
| 513 | addend. */ |
| 514 | HOWTO (R_PPC_RELATIVE, /* type */ |
| 515 | 0, /* rightshift */ |
| 516 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 517 | 32, /* bitsize */ |
| 518 | false, /* pc_relative */ |
| 519 | 0, /* bitpos */ |
| 520 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 521 | bfd_elf_generic_reloc, /* special_function */ |
| 522 | "R_PPC_RELATIVE", /* name */ |
| 523 | false, /* partial_inplace */ |
| 524 | 0, /* src_mask */ |
| 525 | 0xffffffff, /* dst_mask */ |
| 526 | false), /* pcrel_offset */ |
| 527 | |
| 528 | /* Like R_PPC_REL24, but uses the value of the symbol within the |
| 529 | object rather than the final value. Normally used for |
| 530 | _GLOBAL_OFFSET_TABLE_. FIXME: Not supported. */ |
| 531 | HOWTO (R_PPC_LOCAL24PC, /* type */ |
| 532 | 0, /* rightshift */ |
| 533 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 534 | 26, /* bitsize */ |
| 535 | true, /* pc_relative */ |
| 536 | 0, /* bitpos */ |
| 537 | complain_overflow_signed, /* complain_on_overflow */ |
| 538 | bfd_elf_generic_reloc, /* special_function */ |
| 539 | "R_PPC_LOCAL24PC", /* name */ |
| 540 | false, /* partial_inplace */ |
| 541 | 0, /* src_mask */ |
| 542 | 0x3fffffc, /* dst_mask */ |
| 543 | true), /* pcrel_offset */ |
| 544 | |
| 545 | /* Like R_PPC_ADDR32, but may be unaligned. */ |
| 546 | HOWTO (R_PPC_UADDR32, /* type */ |
| 547 | 0, /* rightshift */ |
| 548 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 549 | 32, /* bitsize */ |
| 550 | false, /* pc_relative */ |
| 551 | 0, /* bitpos */ |
| 552 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 553 | bfd_elf_generic_reloc, /* special_function */ |
| 554 | "R_PPC_UADDR32", /* name */ |
| 555 | false, /* partial_inplace */ |
| 556 | 0, /* src_mask */ |
| 557 | 0xffffffff, /* dst_mask */ |
| 558 | false), /* pcrel_offset */ |
| 559 | |
| 560 | /* Like R_PPC_ADDR16, but may be unaligned. */ |
| 561 | HOWTO (R_PPC_UADDR16, /* type */ |
| 562 | 0, /* rightshift */ |
| 563 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 564 | 16, /* bitsize */ |
| 565 | false, /* pc_relative */ |
| 566 | 0, /* bitpos */ |
| 567 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 568 | bfd_elf_generic_reloc, /* special_function */ |
| 569 | "R_PPC_UADDR16", /* name */ |
| 570 | false, /* partial_inplace */ |
| 571 | 0, /* src_mask */ |
| 572 | 0xffff, /* dst_mask */ |
| 573 | false), /* pcrel_offset */ |
| 574 | |
| 575 | /* 32-bit PC relative */ |
| 576 | HOWTO (R_PPC_REL32, /* type */ |
| 577 | 0, /* rightshift */ |
| 578 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 579 | 32, /* bitsize */ |
| 580 | true, /* pc_relative */ |
| 581 | 0, /* bitpos */ |
| 582 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 583 | bfd_elf_generic_reloc, /* special_function */ |
| 584 | "R_PPC_REL32", /* name */ |
| 585 | false, /* partial_inplace */ |
| 586 | 0, /* src_mask */ |
| 587 | 0xffffffff, /* dst_mask */ |
| 588 | true), /* pcrel_offset */ |
| 589 | |
| 590 | /* 32-bit relocation to the symbol's procedure linkage table. |
| 591 | FIXEME: not supported. */ |
| 592 | HOWTO (R_PPC_PLT32, /* type */ |
| 593 | 0, /* rightshift */ |
| 594 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 595 | 32, /* bitsize */ |
| 596 | false, /* pc_relative */ |
| 597 | 0, /* bitpos */ |
| 598 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 599 | bfd_elf_generic_reloc, /* special_function */ |
| 600 | "R_PPC_PLT32", /* name */ |
| 601 | false, /* partial_inplace */ |
| 602 | 0, /* src_mask */ |
| 603 | 0, /* dst_mask */ |
| 604 | false), /* pcrel_offset */ |
| 605 | |
| 606 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. |
| 607 | FIXEME: not supported. */ |
| 608 | HOWTO (R_PPC_PLTREL32, /* type */ |
| 609 | 0, /* rightshift */ |
| 610 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 611 | 32, /* bitsize */ |
| 612 | true, /* pc_relative */ |
| 613 | 0, /* bitpos */ |
| 614 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 615 | bfd_elf_generic_reloc, /* special_function */ |
| 616 | "R_PPC_PLTREL32", /* name */ |
| 617 | false, /* partial_inplace */ |
| 618 | 0, /* src_mask */ |
| 619 | 0, /* dst_mask */ |
| 620 | true), /* pcrel_offset */ |
| 621 | |
| 622 | /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for |
| 623 | the symbol. */ |
| 624 | HOWTO (R_PPC_PLT16_LO, /* type */ |
| 625 | 0, /* rightshift */ |
| 626 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 627 | 16, /* bitsize */ |
| 628 | false, /* pc_relative */ |
| 629 | 0, /* bitpos */ |
| 630 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 631 | bfd_elf_generic_reloc, /* special_function */ |
| 632 | "R_PPC_PLT16_LO", /* name */ |
| 633 | false, /* partial_inplace */ |
| 634 | 0, /* src_mask */ |
| 635 | 0xffff, /* dst_mask */ |
| 636 | false), /* pcrel_offset */ |
| 637 | |
| 638 | /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for |
| 639 | the symbol. */ |
| 640 | HOWTO (R_PPC_PLT16_HI, /* type */ |
| 641 | 16, /* 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_PPC_PLT16_HI", /* name */ |
| 649 | false, /* partial_inplace */ |
| 650 | 0, /* src_mask */ |
| 651 | 0xffff, /* dst_mask */ |
| 652 | false), /* pcrel_offset */ |
| 653 | |
| 654 | /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for |
| 655 | the symbol. FIXME: Not supported. */ |
| 656 | HOWTO (R_PPC_PLT16_HA, /* type */ |
| 657 | 0, /* rightshift */ |
| 658 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 659 | 16, /* bitsize */ |
| 660 | false, /* pc_relative */ |
| 661 | 0, /* bitpos */ |
| 662 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 663 | bfd_elf_generic_reloc, /* special_function */ |
| 664 | "R_PPC_PLT16_HA", /* name */ |
| 665 | false, /* partial_inplace */ |
| 666 | 0, /* src_mask */ |
| 667 | 0xffff, /* dst_mask */ |
| 668 | false), /* pcrel_offset */ |
| 669 | |
| 670 | /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with |
| 671 | small data items. FIXME: Not supported. */ |
| 672 | HOWTO (R_PPC_SDAREL16, /* type */ |
| 673 | 0, /* rightshift */ |
| 674 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 675 | 16, /* bitsize */ |
| 676 | false, /* pc_relative */ |
| 677 | 0, /* bitpos */ |
| 678 | complain_overflow_signed, /* complain_on_overflow */ |
| 679 | bfd_elf_generic_reloc, /* special_function */ |
| 680 | "R_PPC_SDAREL16", /* name */ |
| 681 | false, /* partial_inplace */ |
| 682 | 0, /* src_mask */ |
| 683 | 0xffff, /* dst_mask */ |
| 684 | false), /* pcrel_offset */ |
| 685 | |
| 686 | /* 32-bit section relative relocation. FIXME: not supported. */ |
| 687 | HOWTO (R_PPC_SECTOFF, /* type */ |
| 688 | 0, /* rightshift */ |
| 689 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 690 | 32, /* bitsize */ |
| 691 | true, /* pc_relative */ |
| 692 | 0, /* bitpos */ |
| 693 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 694 | bfd_elf_generic_reloc, /* special_function */ |
| 695 | "R_PPC_SECTOFF", /* name */ |
| 696 | false, /* partial_inplace */ |
| 697 | 0, /* src_mask */ |
| 698 | 0, /* dst_mask */ |
| 699 | true), /* pcrel_offset */ |
| 700 | |
| 701 | /* 16-bit lower half section relative relocation. FIXME: not supported. */ |
| 702 | HOWTO (R_PPC_SECTOFF_LO, /* type */ |
| 703 | 0, /* rightshift */ |
| 704 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 705 | 16, /* bitsize */ |
| 706 | false, /* pc_relative */ |
| 707 | 0, /* bitpos */ |
| 708 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 709 | bfd_elf_generic_reloc, /* special_function */ |
| 710 | "R_PPC_SECTOFF_LO", /* name */ |
| 711 | false, /* partial_inplace */ |
| 712 | 0, /* src_mask */ |
| 713 | 0xffff, /* dst_mask */ |
| 714 | false), /* pcrel_offset */ |
| 715 | |
| 716 | /* 16-bit upper half section relative relocation. FIXME: not supported. */ |
| 717 | HOWTO (R_PPC_SECTOFF_HI, /* type */ |
| 718 | 16, /* rightshift */ |
| 719 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 720 | 16, /* bitsize */ |
| 721 | false, /* pc_relative */ |
| 722 | 0, /* bitpos */ |
| 723 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 724 | bfd_elf_generic_reloc, /* special_function */ |
| 725 | "R_PPC_SECTOFF_HI", /* name */ |
| 726 | false, /* partial_inplace */ |
| 727 | 0, /* src_mask */ |
| 728 | 0xffff, /* dst_mask */ |
| 729 | false), /* pcrel_offset */ |
| 730 | |
| 731 | /* 16-bit upper half adjusted section relative relocation. FIXME: not supported. */ |
| 732 | HOWTO (R_PPC_SECTOFF_HA, /* type */ |
| 733 | 0, /* rightshift */ |
| 734 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 735 | 16, /* bitsize */ |
| 736 | false, /* pc_relative */ |
| 737 | 0, /* bitpos */ |
| 738 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 739 | bfd_elf_generic_reloc, /* special_function */ |
| 740 | "R_PPC_SECTOFF_HA", /* name */ |
| 741 | false, /* partial_inplace */ |
| 742 | 0, /* src_mask */ |
| 743 | 0xffff, /* dst_mask */ |
| 744 | false), /* pcrel_offset */ |
| 745 | |
| 746 | /* The remaining relocs are from the Embedded ELF ABI, and are not |
| 747 | in the SVR4 ELF ABI. */ |
| 748 | |
| 749 | /* 32 bit value resulting from the addend minus the symbol */ |
| 750 | HOWTO (R_PPC_EMB_NADDR32, /* type */ |
| 751 | 0, /* rightshift */ |
| 752 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 753 | 32, /* bitsize */ |
| 754 | false, /* pc_relative */ |
| 755 | 0, /* bitpos */ |
| 756 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 757 | bfd_elf_generic_reloc, /* special_function */ |
| 758 | "R_PPC_EMB_NADDR32", /* name */ |
| 759 | false, /* partial_inplace */ |
| 760 | 0, /* src_mask */ |
| 761 | 0xffffffff, /* dst_mask */ |
| 762 | false), /* pcrel_offset */ |
| 763 | |
| 764 | /* 16 bit value resulting from the addend minus the symbol */ |
| 765 | HOWTO (R_PPC_EMB_NADDR16, /* type */ |
| 766 | 0, /* rightshift */ |
| 767 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 768 | 16, /* bitsize */ |
| 769 | false, /* pc_relative */ |
| 770 | 0, /* bitpos */ |
| 771 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 772 | bfd_elf_generic_reloc, /* special_function */ |
| 773 | "R_PPC_EMB_NADDR16", /* name */ |
| 774 | false, /* partial_inplace */ |
| 775 | 0, /* src_mask */ |
| 776 | 0xffff, /* dst_mask */ |
| 777 | false), /* pcrel_offset */ |
| 778 | |
| 779 | /* 16 bit value resulting from the addend minus the symbol */ |
| 780 | HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ |
| 781 | 0, /* rightshift */ |
| 782 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 783 | 16, /* bitsize */ |
| 784 | false, /* pc_relative */ |
| 785 | 0, /* bitpos */ |
| 786 | complain_overflow_dont,/* complain_on_overflow */ |
| 787 | bfd_elf_generic_reloc, /* special_function */ |
| 788 | "R_PPC_EMB_ADDR16_LO", /* name */ |
| 789 | false, /* partial_inplace */ |
| 790 | 0, /* src_mask */ |
| 791 | 0xffff, /* dst_mask */ |
| 792 | false), /* pcrel_offset */ |
| 793 | |
| 794 | /* The high order 16 bits of the addend minus the symbol */ |
| 795 | HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ |
| 796 | 16, /* rightshift */ |
| 797 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 798 | 16, /* bitsize */ |
| 799 | false, /* pc_relative */ |
| 800 | 0, /* bitpos */ |
| 801 | complain_overflow_dont, /* complain_on_overflow */ |
| 802 | bfd_elf_generic_reloc, /* special_function */ |
| 803 | "R_PPC_EMB_NADDR16_HI", /* name */ |
| 804 | false, /* partial_inplace */ |
| 805 | 0, /* src_mask */ |
| 806 | 0xffff, /* dst_mask */ |
| 807 | false), /* pcrel_offset */ |
| 808 | |
| 809 | /* The high order 16 bits of the result of the addend minus the address, |
| 810 | plus 1 if the contents of the low 16 bits, treated as a signed number, |
| 811 | is negative. */ |
| 812 | HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ |
| 813 | 16, /* rightshift */ |
| 814 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 815 | 16, /* bitsize */ |
| 816 | false, /* pc_relative */ |
| 817 | 0, /* bitpos */ |
| 818 | complain_overflow_dont, /* complain_on_overflow */ |
| 819 | bfd_elf_generic_reloc, /* special_function */ |
| 820 | "R_PPC_EMB_NADDR16_HA", /* name */ |
| 821 | false, /* partial_inplace */ |
| 822 | 0, /* src_mask */ |
| 823 | 0xffff, /* dst_mask */ |
| 824 | false), /* pcrel_offset */ |
| 825 | |
| 826 | /* 16 bit value resulting from allocating a 4 byte word to hold an |
| 827 | address in the .sdata section, and returning the offset from |
| 828 | _SDA_BASE_ for that relocation */ |
| 829 | HOWTO (R_PPC_EMB_SDAI16, /* type */ |
| 830 | 0, /* rightshift */ |
| 831 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 832 | 16, /* bitsize */ |
| 833 | false, /* pc_relative */ |
| 834 | 0, /* bitpos */ |
| 835 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 836 | bfd_elf_generic_reloc, /* special_function */ |
| 837 | "R_PPC_EMB_SDAI16", /* name */ |
| 838 | false, /* partial_inplace */ |
| 839 | 0, /* src_mask */ |
| 840 | 0xffff, /* dst_mask */ |
| 841 | false), /* pcrel_offset */ |
| 842 | |
| 843 | /* 16 bit value resulting from allocating a 4 byte word to hold an |
| 844 | address in the .sdata2 section, and returning the offset from |
| 845 | _SDA2_BASE_ for that relocation */ |
| 846 | HOWTO (R_PPC_EMB_SDA2I16, /* type */ |
| 847 | 0, /* rightshift */ |
| 848 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 849 | 16, /* bitsize */ |
| 850 | false, /* pc_relative */ |
| 851 | 0, /* bitpos */ |
| 852 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 853 | bfd_elf_generic_reloc, /* special_function */ |
| 854 | "R_PPC_EMB_SDA2I16", /* name */ |
| 855 | false, /* partial_inplace */ |
| 856 | 0, /* src_mask */ |
| 857 | 0xffff, /* dst_mask */ |
| 858 | false), /* pcrel_offset */ |
| 859 | |
| 860 | /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with |
| 861 | small data items. FIXME: Not supported. */ |
| 862 | HOWTO (R_PPC_EMB_SDA2REL, /* type */ |
| 863 | 0, /* rightshift */ |
| 864 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 865 | 16, /* bitsize */ |
| 866 | false, /* pc_relative */ |
| 867 | 0, /* bitpos */ |
| 868 | complain_overflow_signed, /* complain_on_overflow */ |
| 869 | bfd_elf_generic_reloc, /* special_function */ |
| 870 | "R_PPC_EMB_SDA2REL", /* name */ |
| 871 | false, /* partial_inplace */ |
| 872 | 0, /* src_mask */ |
| 873 | 0xffff, /* dst_mask */ |
| 874 | false), /* pcrel_offset */ |
| 875 | |
| 876 | /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit |
| 877 | signed offset from the appropriate base, and filling in the register |
| 878 | field with the appropriate register (0, 2, or 13). */ |
| 879 | HOWTO (R_PPC_EMB_SDA21, /* type */ |
| 880 | 0, /* rightshift */ |
| 881 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 882 | 16, /* bitsize */ |
| 883 | false, /* pc_relative */ |
| 884 | 0, /* bitpos */ |
| 885 | complain_overflow_signed, /* complain_on_overflow */ |
| 886 | bfd_elf_generic_reloc, /* special_function */ |
| 887 | "R_PPC_EMB_SDA21", /* name */ |
| 888 | false, /* partial_inplace */ |
| 889 | 0, /* src_mask */ |
| 890 | 0xffff, /* dst_mask */ |
| 891 | false), /* pcrel_offset */ |
| 892 | |
| 893 | /* Relocation not handled: R_PPC_EMB_MRKREF */ |
| 894 | /* Relocation not handled: R_PPC_EMB_RELSEC16 */ |
| 895 | /* Relocation not handled: R_PPC_EMB_RELST_LO */ |
| 896 | /* Relocation not handled: R_PPC_EMB_RELST_HI */ |
| 897 | /* Relocation not handled: R_PPC_EMB_RELST_HA */ |
| 898 | /* Relocation not handled: R_PPC_EMB_BIT_FLD */ |
| 899 | |
| 900 | /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling |
| 901 | in the 16 bit signed offset from the appropriate base, and filling in the |
| 902 | register field with the appropriate register (0, 2, or 13). */ |
| 903 | HOWTO (R_PPC_EMB_RELSDA, /* type */ |
| 904 | 0, /* rightshift */ |
| 905 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 906 | 16, /* bitsize */ |
| 907 | true, /* pc_relative */ |
| 908 | 0, /* bitpos */ |
| 909 | complain_overflow_signed, /* complain_on_overflow */ |
| 910 | bfd_elf_generic_reloc, /* special_function */ |
| 911 | "R_PPC_EMB_RELSDA", /* name */ |
| 912 | false, /* partial_inplace */ |
| 913 | 0, /* src_mask */ |
| 914 | 0xffff, /* dst_mask */ |
| 915 | false), /* pcrel_offset */ |
| 916 | |
| 917 | /* Phony reloc to handle AIX style TOC entries */ |
| 918 | HOWTO (R_PPC_TOC16, /* type */ |
| 919 | 0, /* rightshift */ |
| 920 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 921 | 16, /* bitsize */ |
| 922 | false, /* pc_relative */ |
| 923 | 0, /* bitpos */ |
| 924 | complain_overflow_signed, /* complain_on_overflow */ |
| 925 | bfd_elf_generic_reloc, /* special_function */ |
| 926 | "R_PPC_TOC16", /* name */ |
| 927 | false, /* partial_inplace */ |
| 928 | 0, /* src_mask */ |
| 929 | 0xffff, /* dst_mask */ |
| 930 | false), /* pcrel_offset */ |
| 931 | }; |
| 932 | |
| 933 | \f |
| 934 | /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ |
| 935 | |
| 936 | static void |
| 937 | ppc_elf_howto_init () |
| 938 | { |
| 939 | unsigned int i, type; |
| 940 | |
| 941 | for (i = 0; i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); i++) |
| 942 | { |
| 943 | type = ppc_elf_howto_raw[i].type; |
| 944 | BFD_ASSERT (type < sizeof(ppc_elf_howto_table) / sizeof(ppc_elf_howto_table[0])); |
| 945 | ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; |
| 946 | } |
| 947 | } |
| 948 | |
| 949 | \f |
| 950 | static reloc_howto_type * |
| 951 | ppc_elf_reloc_type_lookup (abfd, code) |
| 952 | bfd *abfd; |
| 953 | bfd_reloc_code_real_type code; |
| 954 | { |
| 955 | enum ppc_reloc_type ppc_reloc = R_PPC_NONE; |
| 956 | |
| 957 | if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */ |
| 958 | ppc_elf_howto_init (); |
| 959 | |
| 960 | switch ((int)code) |
| 961 | { |
| 962 | default: |
| 963 | return (reloc_howto_type *)NULL; |
| 964 | |
| 965 | case BFD_RELOC_NONE: ppc_reloc = R_PPC_NONE; break; |
| 966 | case BFD_RELOC_32: ppc_reloc = R_PPC_ADDR32; break; |
| 967 | case BFD_RELOC_PPC_BA26: ppc_reloc = R_PPC_ADDR24; break; |
| 968 | case BFD_RELOC_16: ppc_reloc = R_PPC_ADDR16; break; |
| 969 | case BFD_RELOC_LO16: ppc_reloc = R_PPC_ADDR16_LO; break; |
| 970 | case BFD_RELOC_HI16: ppc_reloc = R_PPC_ADDR16_HI; break; |
| 971 | case BFD_RELOC_HI16_S: ppc_reloc = R_PPC_ADDR16_HA; break; |
| 972 | case BFD_RELOC_PPC_BA16: ppc_reloc = R_PPC_ADDR14; break; |
| 973 | case BFD_RELOC_PPC_BA16_BRTAKEN: ppc_reloc = R_PPC_ADDR14_BRTAKEN; break; |
| 974 | case BFD_RELOC_PPC_BA16_BRNTAKEN: ppc_reloc = R_PPC_ADDR14_BRNTAKEN; break; |
| 975 | case BFD_RELOC_PPC_B26: ppc_reloc = R_PPC_REL24; break; |
| 976 | case BFD_RELOC_PPC_B16: ppc_reloc = R_PPC_REL14; break; |
| 977 | case BFD_RELOC_PPC_B16_BRTAKEN: ppc_reloc = R_PPC_REL14_BRTAKEN; break; |
| 978 | case BFD_RELOC_PPC_B16_BRNTAKEN: ppc_reloc = R_PPC_REL14_BRNTAKEN; break; |
| 979 | case BFD_RELOC_16_GOTOFF: ppc_reloc = R_PPC_GOT16; break; |
| 980 | case BFD_RELOC_LO16_GOTOFF: ppc_reloc = R_PPC_GOT16_LO; break; |
| 981 | case BFD_RELOC_HI16_GOTOFF: ppc_reloc = R_PPC_GOT16_HI; break; |
| 982 | case BFD_RELOC_HI16_S_GOTOFF: ppc_reloc = R_PPC_GOT16_HA; break; |
| 983 | case BFD_RELOC_24_PLT_PCREL: ppc_reloc = R_PPC_PLTREL24; break; |
| 984 | case BFD_RELOC_PPC_COPY: ppc_reloc = R_PPC_COPY; break; |
| 985 | case BFD_RELOC_PPC_GLOB_DAT: ppc_reloc = R_PPC_GLOB_DAT; break; |
| 986 | case BFD_RELOC_PPC_LOCAL24PC: ppc_reloc = R_PPC_LOCAL24PC; break; |
| 987 | case BFD_RELOC_32_PCREL: ppc_reloc = R_PPC_REL32; break; |
| 988 | case BFD_RELOC_32_PLTOFF: ppc_reloc = R_PPC_PLT32; break; |
| 989 | case BFD_RELOC_32_PLT_PCREL: ppc_reloc = R_PPC_PLTREL32; break; |
| 990 | case BFD_RELOC_LO16_PLTOFF: ppc_reloc = R_PPC_PLT16_LO; break; |
| 991 | case BFD_RELOC_HI16_PLTOFF: ppc_reloc = R_PPC_PLT16_HI; break; |
| 992 | case BFD_RELOC_HI16_S_PLTOFF: ppc_reloc = R_PPC_PLT16_HA; break; |
| 993 | case BFD_RELOC_GPREL16: ppc_reloc = R_PPC_SDAREL16; break; |
| 994 | case BFD_RELOC_32_BASEREL: ppc_reloc = R_PPC_SECTOFF; break; |
| 995 | case BFD_RELOC_LO16_BASEREL: ppc_reloc = R_PPC_SECTOFF_LO; break; |
| 996 | case BFD_RELOC_HI16_BASEREL: ppc_reloc = R_PPC_SECTOFF_HI; break; |
| 997 | case BFD_RELOC_HI16_S_BASEREL: ppc_reloc = R_PPC_SECTOFF_HA; break; |
| 998 | case BFD_RELOC_CTOR: ppc_reloc = R_PPC_ADDR32; break; |
| 999 | case BFD_RELOC_PPC_TOC16: ppc_reloc = R_PPC_TOC16; break; |
| 1000 | case BFD_RELOC_PPC_EMB_NADDR32: ppc_reloc = R_PPC_EMB_NADDR32; break; |
| 1001 | case BFD_RELOC_PPC_EMB_NADDR16: ppc_reloc = R_PPC_EMB_NADDR16; break; |
| 1002 | case BFD_RELOC_PPC_EMB_NADDR16_LO: ppc_reloc = R_PPC_EMB_NADDR16_LO; break; |
| 1003 | case BFD_RELOC_PPC_EMB_NADDR16_HI: ppc_reloc = R_PPC_EMB_NADDR16_HI; break; |
| 1004 | case BFD_RELOC_PPC_EMB_NADDR16_HA: ppc_reloc = R_PPC_EMB_NADDR16_HA; break; |
| 1005 | case BFD_RELOC_PPC_EMB_SDAI16: ppc_reloc = R_PPC_EMB_SDAI16; break; |
| 1006 | case BFD_RELOC_PPC_EMB_SDA2I16: ppc_reloc = R_PPC_EMB_SDA2I16; break; |
| 1007 | case BFD_RELOC_PPC_EMB_SDA2REL: ppc_reloc = R_PPC_EMB_SDA2REL; break; |
| 1008 | case BFD_RELOC_PPC_EMB_SDA21: ppc_reloc = R_PPC_EMB_SDA21; break; |
| 1009 | case BFD_RELOC_PPC_EMB_MRKREF: ppc_reloc = R_PPC_EMB_MRKREF; break; |
| 1010 | case BFD_RELOC_PPC_EMB_RELSEC16: ppc_reloc = R_PPC_EMB_RELSEC16; break; |
| 1011 | case BFD_RELOC_PPC_EMB_RELST_LO: ppc_reloc = R_PPC_EMB_RELST_LO; break; |
| 1012 | case BFD_RELOC_PPC_EMB_RELST_HI: ppc_reloc = R_PPC_EMB_RELST_HI; break; |
| 1013 | case BFD_RELOC_PPC_EMB_RELST_HA: ppc_reloc = R_PPC_EMB_RELST_HA; break; |
| 1014 | case BFD_RELOC_PPC_EMB_BIT_FLD: ppc_reloc = R_PPC_EMB_BIT_FLD; break; |
| 1015 | case BFD_RELOC_PPC_EMB_RELSDA: ppc_reloc = R_PPC_EMB_RELSDA; break; |
| 1016 | } |
| 1017 | |
| 1018 | return ppc_elf_howto_table[ (int)ppc_reloc ]; |
| 1019 | }; |
| 1020 | |
| 1021 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 1022 | |
| 1023 | static void |
| 1024 | ppc_elf_info_to_howto (abfd, cache_ptr, dst) |
| 1025 | bfd *abfd; |
| 1026 | arelent *cache_ptr; |
| 1027 | Elf32_Internal_Rela *dst; |
| 1028 | { |
| 1029 | if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */ |
| 1030 | ppc_elf_howto_init (); |
| 1031 | |
| 1032 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max); |
| 1033 | cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)]; |
| 1034 | } |
| 1035 | |
| 1036 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
| 1037 | |
| 1038 | static boolean |
| 1039 | ppc_elf_set_private_flags (abfd, flags) |
| 1040 | bfd *abfd; |
| 1041 | flagword flags; |
| 1042 | { |
| 1043 | BFD_ASSERT (!elf_flags_init (abfd) |
| 1044 | || elf_elfheader (abfd)->e_flags == flags); |
| 1045 | |
| 1046 | elf_elfheader (abfd)->e_flags = flags; |
| 1047 | elf_flags_init (abfd) = true; |
| 1048 | return true; |
| 1049 | } |
| 1050 | |
| 1051 | /* Copy backend specific data from one object module to another */ |
| 1052 | static boolean |
| 1053 | ppc_elf_copy_private_bfd_data (ibfd, obfd) |
| 1054 | bfd *ibfd; |
| 1055 | bfd *obfd; |
| 1056 | { |
| 1057 | /* This function is selected based on the input vector. We only |
| 1058 | want to copy information over if the output BFD also uses Elf |
| 1059 | format. */ |
| 1060 | if (bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| 1061 | return true; |
| 1062 | |
| 1063 | BFD_ASSERT (!elf_flags_init (obfd) |
| 1064 | || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags); |
| 1065 | |
| 1066 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
| 1067 | elf_flags_init (obfd) = true; |
| 1068 | return true; |
| 1069 | } |
| 1070 | |
| 1071 | /* Merge backend specific data from an object file to the output |
| 1072 | object file when linking */ |
| 1073 | static boolean |
| 1074 | ppc_elf_merge_private_bfd_data (ibfd, obfd) |
| 1075 | bfd *ibfd; |
| 1076 | bfd *obfd; |
| 1077 | { |
| 1078 | flagword old_flags; |
| 1079 | flagword new_flags; |
| 1080 | boolean error; |
| 1081 | |
| 1082 | /* Check if we have the same endianess */ |
| 1083 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder |
| 1084 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
| 1085 | { |
| 1086 | (*_bfd_error_handler) |
| 1087 | ("%s: compiled for a %s endian system and target is %s endian", |
| 1088 | bfd_get_filename (ibfd), |
| 1089 | bfd_big_endian (ibfd) ? "big" : "little", |
| 1090 | bfd_big_endian (obfd) ? "big" : "little"); |
| 1091 | |
| 1092 | bfd_set_error (bfd_error_wrong_format); |
| 1093 | return false; |
| 1094 | } |
| 1095 | |
| 1096 | /* This function is selected based on the input vector. We only |
| 1097 | want to copy information over if the output BFD also uses Elf |
| 1098 | format. */ |
| 1099 | if (bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| 1100 | return true; |
| 1101 | |
| 1102 | new_flags = elf_elfheader (ibfd)->e_flags; |
| 1103 | old_flags = elf_elfheader (obfd)->e_flags; |
| 1104 | if (!elf_flags_init (obfd)) /* First call, no flags set */ |
| 1105 | { |
| 1106 | elf_flags_init (obfd) = true; |
| 1107 | elf_elfheader (obfd)->e_flags = new_flags; |
| 1108 | } |
| 1109 | |
| 1110 | else if (new_flags == old_flags) /* Compatible flags are ok */ |
| 1111 | ; |
| 1112 | |
| 1113 | else /* Incompatible flags */ |
| 1114 | { |
| 1115 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib to be linked |
| 1116 | with either. */ |
| 1117 | error = false; |
| 1118 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 |
| 1119 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) |
| 1120 | { |
| 1121 | error = true; |
| 1122 | (*_bfd_error_handler) |
| 1123 | ("%s: compiled with -mrelocatable and linked with modules compiled normally", |
| 1124 | bfd_get_filename (ibfd)); |
| 1125 | } |
| 1126 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 |
| 1127 | && (old_flags & EF_PPC_RELOCATABLE) != 0) |
| 1128 | { |
| 1129 | error = true; |
| 1130 | (*_bfd_error_handler) |
| 1131 | ("%s: compiled normally and linked with modules compiled with -mrelocatable", |
| 1132 | bfd_get_filename (ibfd)); |
| 1133 | } |
| 1134 | else if ((new_flags & EF_PPC_RELOCATABLE_LIB) != 0) |
| 1135 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE_LIB; |
| 1136 | |
| 1137 | |
| 1138 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if any module uses it */ |
| 1139 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); |
| 1140 | |
| 1141 | new_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); |
| 1142 | old_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); |
| 1143 | |
| 1144 | /* Warn about any other mismatches */ |
| 1145 | if (new_flags != old_flags) |
| 1146 | { |
| 1147 | error = true; |
| 1148 | (*_bfd_error_handler) |
| 1149 | ("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)", |
| 1150 | bfd_get_filename (ibfd), (long)new_flags, (long)old_flags); |
| 1151 | } |
| 1152 | |
| 1153 | if (error) |
| 1154 | { |
| 1155 | bfd_set_error (bfd_error_bad_value); |
| 1156 | return false; |
| 1157 | } |
| 1158 | } |
| 1159 | |
| 1160 | return true; |
| 1161 | } |
| 1162 | |
| 1163 | \f |
| 1164 | /* Handle a PowerPC specific section when reading an object file. This |
| 1165 | is called when elfcode.h finds a section with an unknown type. */ |
| 1166 | |
| 1167 | static boolean |
| 1168 | ppc_elf_section_from_shdr (abfd, hdr, name) |
| 1169 | bfd *abfd; |
| 1170 | Elf32_Internal_Shdr *hdr; |
| 1171 | char *name; |
| 1172 | { |
| 1173 | asection *newsect; |
| 1174 | flagword flags; |
| 1175 | |
| 1176 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) |
| 1177 | return false; |
| 1178 | |
| 1179 | newsect = hdr->bfd_section; |
| 1180 | flags = bfd_get_section_flags (abfd, newsect); |
| 1181 | if (hdr->sh_flags & SHF_EXCLUDE) |
| 1182 | flags |= SEC_EXCLUDE; |
| 1183 | |
| 1184 | if (hdr->sh_type == SHT_ORDERED) |
| 1185 | flags |= SEC_SORT_ENTRIES; |
| 1186 | |
| 1187 | bfd_set_section_flags (abfd, newsect, flags); |
| 1188 | return true; |
| 1189 | } |
| 1190 | |
| 1191 | \f |
| 1192 | /* Set up any other section flags and such that may be necessary. */ |
| 1193 | |
| 1194 | boolean |
| 1195 | ppc_elf_fake_sections (abfd, shdr, asect) |
| 1196 | bfd *abfd; |
| 1197 | Elf32_Internal_Shdr *shdr; |
| 1198 | asection *asect; |
| 1199 | { |
| 1200 | if ((asect->flags & SEC_EXCLUDE) != 0) |
| 1201 | shdr->sh_flags |= SHF_EXCLUDE; |
| 1202 | |
| 1203 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) |
| 1204 | shdr->sh_type = SHT_ORDERED; |
| 1205 | } |
| 1206 | |
| 1207 | \f |
| 1208 | /* Create a special linker section */ |
| 1209 | static elf_linker_section_t * |
| 1210 | ppc_elf_create_linker_section (abfd, info, which) |
| 1211 | bfd *abfd; |
| 1212 | struct bfd_link_info *info; |
| 1213 | enum elf_linker_section_enum which; |
| 1214 | { |
| 1215 | bfd *dynobj = elf_hash_table (info)->dynobj; |
| 1216 | elf_linker_section_t *lsect; |
| 1217 | |
| 1218 | /* Record the first bfd section that needs the special section */ |
| 1219 | if (!dynobj) |
| 1220 | dynobj = elf_hash_table (info)->dynobj = abfd; |
| 1221 | |
| 1222 | /* If this is the first time, create the section */ |
| 1223 | lsect = elf_linker_section (dynobj, which); |
| 1224 | if (!lsect) |
| 1225 | { |
| 1226 | elf_linker_section_t defaults; |
| 1227 | static elf_linker_section_t zero_section; |
| 1228 | |
| 1229 | defaults = zero_section; |
| 1230 | defaults.which = which; |
| 1231 | defaults.hole_written_p = false; |
| 1232 | defaults.alignment = 2; |
| 1233 | defaults.flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY; |
| 1234 | |
| 1235 | switch (which) |
| 1236 | { |
| 1237 | default: |
| 1238 | (*_bfd_error_handler) ("%s: Unknown special linker type %d", |
| 1239 | bfd_get_filename (abfd), |
| 1240 | (int)which); |
| 1241 | |
| 1242 | bfd_set_error (bfd_error_bad_value); |
| 1243 | return (elf_linker_section_t *)0; |
| 1244 | |
| 1245 | case LINKER_SECTION_GOT: /* .got section */ |
| 1246 | defaults.name = ".got"; |
| 1247 | defaults.rel_name = ".rela.got"; |
| 1248 | defaults.sym_name = "_GLOBAL_OFFSET_TABLE_"; |
| 1249 | defaults.max_hole_offset = 32764; |
| 1250 | defaults.hole_size = 16; |
| 1251 | defaults.sym_offset = 4; |
| 1252 | break; |
| 1253 | |
| 1254 | case LINKER_SECTION_SDATA: /* .sdata/.sbss section */ |
| 1255 | defaults.name = ".sdata"; |
| 1256 | defaults.rel_name = ".rela.sdata"; |
| 1257 | defaults.bss_name = ".sbss"; |
| 1258 | defaults.sym_name = "_SDA_BASE_"; |
| 1259 | defaults.sym_offset = 32768; |
| 1260 | break; |
| 1261 | |
| 1262 | case LINKER_SECTION_SDATA2: /* .sdata2/.sbss2 section */ |
| 1263 | defaults.name = ".sdata2"; |
| 1264 | defaults.rel_name = ".rela.sdata2"; |
| 1265 | defaults.bss_name = ".sbss2"; |
| 1266 | defaults.sym_name = "_SDA2_BASE_"; |
| 1267 | defaults.sym_offset = 32768; |
| 1268 | break; |
| 1269 | } |
| 1270 | |
| 1271 | lsect = _bfd_elf_create_linker_section (abfd, info, which, &defaults); |
| 1272 | } |
| 1273 | |
| 1274 | return lsect; |
| 1275 | } |
| 1276 | |
| 1277 | \f |
| 1278 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 1279 | regular object. The current definition is in some section of the |
| 1280 | dynamic object, but we're not including those sections. We have to |
| 1281 | change the definition to something the rest of the link can |
| 1282 | understand. */ |
| 1283 | |
| 1284 | static boolean |
| 1285 | ppc_elf_adjust_dynamic_symbol (info, h) |
| 1286 | struct bfd_link_info *info; |
| 1287 | struct elf_link_hash_entry *h; |
| 1288 | { |
| 1289 | #ifdef DEBUG |
| 1290 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called\n"); |
| 1291 | #endif |
| 1292 | return true; |
| 1293 | } |
| 1294 | |
| 1295 | \f |
| 1296 | /* Increment the index of a dynamic symbol by a given amount. Called |
| 1297 | via elf_link_hash_traverse. */ |
| 1298 | |
| 1299 | static boolean |
| 1300 | ppc_elf_adjust_dynindx (h, cparg) |
| 1301 | struct elf_link_hash_entry *h; |
| 1302 | PTR cparg; |
| 1303 | { |
| 1304 | int *cp = (int *) cparg; |
| 1305 | |
| 1306 | #ifdef DEBUG |
| 1307 | fprintf (stderr, "ppc_elf_adjust_dynindx called, h->dynindx = %d, *cp = %d\n", h->dynindx, *cp); |
| 1308 | #endif |
| 1309 | |
| 1310 | if (h->dynindx != -1) |
| 1311 | h->dynindx += *cp; |
| 1312 | |
| 1313 | return true; |
| 1314 | } |
| 1315 | |
| 1316 | \f |
| 1317 | /* Set the sizes of the dynamic sections. */ |
| 1318 | |
| 1319 | static boolean |
| 1320 | ppc_elf_size_dynamic_sections (output_bfd, info) |
| 1321 | bfd *output_bfd; |
| 1322 | struct bfd_link_info *info; |
| 1323 | { |
| 1324 | bfd *dynobj; |
| 1325 | asection *s; |
| 1326 | boolean reltext; |
| 1327 | boolean relplt; |
| 1328 | |
| 1329 | #ifdef DEBUG |
| 1330 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); |
| 1331 | #endif |
| 1332 | |
| 1333 | dynobj = elf_hash_table (info)->dynobj; |
| 1334 | BFD_ASSERT (dynobj != NULL); |
| 1335 | |
| 1336 | if (elf_hash_table (info)->dynamic_sections_created) |
| 1337 | { |
| 1338 | /* Set the contents of the .interp section to the interpreter. */ |
| 1339 | if (! info->shared) |
| 1340 | { |
| 1341 | s = bfd_get_section_by_name (dynobj, ".interp"); |
| 1342 | BFD_ASSERT (s != NULL); |
| 1343 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 1344 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 1345 | } |
| 1346 | |
| 1347 | /* Make space for the trailing nop in .plt. */ |
| 1348 | s = bfd_get_section_by_name (dynobj, ".plt"); |
| 1349 | BFD_ASSERT (s != NULL); |
| 1350 | if (s->_raw_size > 0) |
| 1351 | s->_raw_size += 4; |
| 1352 | } |
| 1353 | else |
| 1354 | { |
| 1355 | /* We may have created entries in the .rela.got, .rela.sdata, and |
| 1356 | .rela.sdata2 section2. However, if we are not creating the |
| 1357 | dynamic sections, we will not actually use these entries. Reset |
| 1358 | the size of .rela.got, et al, which will cause it to get |
| 1359 | stripped from the output file below. */ |
| 1360 | static char *rela_sections[] = { ".rela.got", ".rela.sdata", ".rela.sdata", (char *)0 }; |
| 1361 | char **p; |
| 1362 | |
| 1363 | for (p = rela_sections; *p != (char *)0; p++) |
| 1364 | { |
| 1365 | s = bfd_get_section_by_name (dynobj, *p); |
| 1366 | if (s != NULL) |
| 1367 | s->_raw_size = 0; |
| 1368 | } |
| 1369 | } |
| 1370 | |
| 1371 | /* The check_relocs and adjust_dynamic_symbol entry points have |
| 1372 | determined the sizes of the various dynamic sections. Allocate |
| 1373 | memory for them. */ |
| 1374 | reltext = false; |
| 1375 | relplt = false; |
| 1376 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 1377 | { |
| 1378 | const char *name; |
| 1379 | boolean strip; |
| 1380 | |
| 1381 | if ((s->flags & SEC_IN_MEMORY) == 0) |
| 1382 | continue; |
| 1383 | |
| 1384 | /* It's OK to base decisions on the section name, because none |
| 1385 | of the dynobj section names depend upon the input files. */ |
| 1386 | name = bfd_get_section_name (dynobj, s); |
| 1387 | |
| 1388 | strip = false; |
| 1389 | |
| 1390 | #if 0 |
| 1391 | if (strncmp (name, ".rela", 5) == 0) |
| 1392 | { |
| 1393 | if (s->_raw_size == 0) |
| 1394 | { |
| 1395 | /* If we don't need this section, strip it from the |
| 1396 | output file. This is to handle .rela.bss and |
| 1397 | .rel.plt. We must create it in |
| 1398 | create_dynamic_sections, because it must be created |
| 1399 | before the linker maps input sections to output |
| 1400 | sections. The linker does that before |
| 1401 | adjust_dynamic_symbol is called, and it is that |
| 1402 | function which decides whether anything needs to go |
| 1403 | into these sections. */ |
| 1404 | strip = true; |
| 1405 | } |
| 1406 | else |
| 1407 | { |
| 1408 | asection *target; |
| 1409 | |
| 1410 | /* If this relocation section applies to a read only |
| 1411 | section, then we probably need a DT_TEXTREL entry. */ |
| 1412 | target = bfd_get_section_by_name (output_bfd, name + 5); |
| 1413 | if (target != NULL |
| 1414 | && (target->flags & SEC_READONLY) != 0) |
| 1415 | reltext = true; |
| 1416 | |
| 1417 | if (strcmp (name, ".rela.plt") == 0) |
| 1418 | relplt = true; |
| 1419 | |
| 1420 | /* We use the reloc_count field as a counter if we need |
| 1421 | to copy relocs into the output file. */ |
| 1422 | s->reloc_count = 0; |
| 1423 | } |
| 1424 | } |
| 1425 | else |
| 1426 | #endif |
| 1427 | if (strcmp (name, ".plt") != 0 |
| 1428 | && strcmp (name, ".got") != 0 |
| 1429 | && strcmp (name, ".sdata") != 0 |
| 1430 | && strcmp (name, ".sdata2") != 0) |
| 1431 | { |
| 1432 | /* It's not one of our sections, so don't allocate space. */ |
| 1433 | continue; |
| 1434 | } |
| 1435 | |
| 1436 | if (strip) |
| 1437 | { |
| 1438 | asection **spp; |
| 1439 | |
| 1440 | for (spp = &s->output_section->owner->sections; |
| 1441 | *spp != s->output_section; |
| 1442 | spp = &(*spp)->next) |
| 1443 | ; |
| 1444 | *spp = s->output_section->next; |
| 1445 | --s->output_section->owner->section_count; |
| 1446 | |
| 1447 | continue; |
| 1448 | } |
| 1449 | |
| 1450 | /* Allocate memory for the section contents. */ |
| 1451 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); |
| 1452 | if (s->contents == NULL && s->_raw_size != 0) |
| 1453 | return false; |
| 1454 | } |
| 1455 | |
| 1456 | if (elf_hash_table (info)->dynamic_sections_created) |
| 1457 | { |
| 1458 | /* Add some entries to the .dynamic section. We fill in the |
| 1459 | values later, in ppc_elf_finish_dynamic_sections, but we |
| 1460 | must add the entries now so that we get the correct size for |
| 1461 | the .dynamic section. The DT_DEBUG entry is filled in by the |
| 1462 | dynamic linker and used by the debugger. */ |
| 1463 | if (! info->shared) |
| 1464 | { |
| 1465 | if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) |
| 1466 | return false; |
| 1467 | } |
| 1468 | |
| 1469 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) |
| 1470 | return false; |
| 1471 | |
| 1472 | if (relplt) |
| 1473 | { |
| 1474 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) |
| 1475 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA) |
| 1476 | || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) |
| 1477 | return false; |
| 1478 | } |
| 1479 | |
| 1480 | if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0) |
| 1481 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0) |
| 1482 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT, |
| 1483 | sizeof (Elf32_External_Rela))) |
| 1484 | return false; |
| 1485 | |
| 1486 | if (reltext) |
| 1487 | { |
| 1488 | if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) |
| 1489 | return false; |
| 1490 | } |
| 1491 | } |
| 1492 | |
| 1493 | /* If we are generating a shared library, we generate a section |
| 1494 | symbol for each output section. These are local symbols, which |
| 1495 | means that they must come first in the dynamic symbol table. |
| 1496 | That means we must increment the dynamic symbol index of every |
| 1497 | other dynamic symbol. */ |
| 1498 | if (info->shared) |
| 1499 | { |
| 1500 | int c, i; |
| 1501 | |
| 1502 | c = bfd_count_sections (output_bfd); |
| 1503 | elf_link_hash_traverse (elf_hash_table (info), |
| 1504 | ppc_elf_adjust_dynindx, |
| 1505 | (PTR) &c); |
| 1506 | elf_hash_table (info)->dynsymcount += c; |
| 1507 | |
| 1508 | for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++) |
| 1509 | { |
| 1510 | elf_section_data (s)->dynindx = i; |
| 1511 | /* These symbols will have no names, so we don't need to |
| 1512 | fiddle with dynstr_index. */ |
| 1513 | } |
| 1514 | } |
| 1515 | |
| 1516 | return true; |
| 1517 | } |
| 1518 | |
| 1519 | \f |
| 1520 | /* Look through the relocs for a section during the first phase, and |
| 1521 | allocate space in the global offset table or procedure linkage |
| 1522 | table. */ |
| 1523 | |
| 1524 | static boolean |
| 1525 | ppc_elf_check_relocs (abfd, info, sec, relocs) |
| 1526 | bfd *abfd; |
| 1527 | struct bfd_link_info *info; |
| 1528 | asection *sec; |
| 1529 | const Elf_Internal_Rela *relocs; |
| 1530 | { |
| 1531 | bfd *dynobj; |
| 1532 | Elf_Internal_Shdr *symtab_hdr; |
| 1533 | struct elf_link_hash_entry **sym_hashes; |
| 1534 | const Elf_Internal_Rela *rel; |
| 1535 | const Elf_Internal_Rela *rel_end; |
| 1536 | elf_linker_section_t *got; |
| 1537 | elf_linker_section_t *sdata; |
| 1538 | elf_linker_section_t *sdata2; |
| 1539 | asection *sreloc; |
| 1540 | |
| 1541 | if (info->relocateable) |
| 1542 | return true; |
| 1543 | |
| 1544 | #ifdef DEBUG |
| 1545 | fprintf (stderr, "ppc_elf_check_relocs called for section %s\n", |
| 1546 | bfd_get_section_name (abfd, sec)); |
| 1547 | #endif |
| 1548 | |
| 1549 | /* Create the linker generated sections all the time so that the special |
| 1550 | symbols are created. */ |
| 1551 | if ((got = elf_linker_section (abfd, LINKER_SECTION_GOT)) == NULL) |
| 1552 | { |
| 1553 | got = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_GOT); |
| 1554 | if (!got) |
| 1555 | return false; |
| 1556 | } |
| 1557 | |
| 1558 | if ((sdata = elf_linker_section (abfd, LINKER_SECTION_SDATA)) == NULL) |
| 1559 | { |
| 1560 | sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA); |
| 1561 | if (!sdata) |
| 1562 | return false; |
| 1563 | } |
| 1564 | |
| 1565 | |
| 1566 | if ((sdata2 = elf_linker_section (abfd, LINKER_SECTION_SDATA2)) == NULL) |
| 1567 | { |
| 1568 | sdata2 = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA2); |
| 1569 | if (!sdata2) |
| 1570 | return false; |
| 1571 | } |
| 1572 | |
| 1573 | dynobj = elf_hash_table (info)->dynobj; |
| 1574 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 1575 | sym_hashes = elf_sym_hashes (abfd); |
| 1576 | |
| 1577 | sreloc = NULL; |
| 1578 | |
| 1579 | rel_end = relocs + sec->reloc_count; |
| 1580 | for (rel = relocs; rel < rel_end; rel++) |
| 1581 | { |
| 1582 | unsigned long r_symndx; |
| 1583 | struct elf_link_hash_entry *h; |
| 1584 | |
| 1585 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 1586 | if (r_symndx < symtab_hdr->sh_info) |
| 1587 | h = NULL; |
| 1588 | else |
| 1589 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 1590 | |
| 1591 | switch (ELF32_R_TYPE (rel->r_info)) |
| 1592 | { |
| 1593 | default: |
| 1594 | break; |
| 1595 | |
| 1596 | /* GOT16 relocations */ |
| 1597 | case R_PPC_GOT16: |
| 1598 | case R_PPC_GOT16_LO: |
| 1599 | case R_PPC_GOT16_HI: |
| 1600 | case R_PPC_GOT16_HA: |
| 1601 | if (got->rel_section == NULL |
| 1602 | && (h != NULL || info->shared) |
| 1603 | && !_bfd_elf_make_linker_section_rela (dynobj, got, 2)) |
| 1604 | return false; |
| 1605 | |
| 1606 | if (!bfd_elf32_create_pointer_linker_section (abfd, info, got, h, rel)) |
| 1607 | return false; |
| 1608 | |
| 1609 | break; |
| 1610 | |
| 1611 | /* Indirect .sdata relocation */ |
| 1612 | case R_PPC_EMB_SDAI16: |
| 1613 | if (got->rel_section == NULL |
| 1614 | && (h != NULL || info->shared) |
| 1615 | && !_bfd_elf_make_linker_section_rela (dynobj, got, 2)) |
| 1616 | return false; |
| 1617 | |
| 1618 | BFD_ASSERT (!info->shared); |
| 1619 | if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata, h, rel)) |
| 1620 | return false; |
| 1621 | |
| 1622 | break; |
| 1623 | |
| 1624 | /* Indirect .sdata2 relocation */ |
| 1625 | case R_PPC_EMB_SDA2I16: |
| 1626 | if (got->rel_section == NULL |
| 1627 | && (h != NULL || info->shared) |
| 1628 | && !_bfd_elf_make_linker_section_rela (dynobj, got, 2)) |
| 1629 | return false; |
| 1630 | |
| 1631 | BFD_ASSERT (!info->shared); |
| 1632 | if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata2, h, rel)) |
| 1633 | return false; |
| 1634 | |
| 1635 | break; |
| 1636 | |
| 1637 | #if 0 |
| 1638 | case R_PPC_PLT32: |
| 1639 | case R_PPC_PLTREL24: |
| 1640 | case R_PPC_PLT16_LO: |
| 1641 | case R_PPC_PLT16_HI: |
| 1642 | case R_PPC_PLT16_HA: |
| 1643 | #ifdef DEBUG |
| 1644 | fprintf (stderr, "Reloc requires a PLT entry\n"); |
| 1645 | #endif |
| 1646 | /* This symbol requires a procedure linkage table entry. We |
| 1647 | actually build the entry in adjust_dynamic_symbol, |
| 1648 | because this might be a case of linking PIC code without |
| 1649 | linking in any dynamic objects, in which case we don't |
| 1650 | need to generate a procedure linkage table after all. */ |
| 1651 | |
| 1652 | if (h == NULL) |
| 1653 | { |
| 1654 | /* It does not make sense to have a procedure linkage |
| 1655 | table entry for a local symbol. */ |
| 1656 | bfd_set_error (bfd_error_bad_value); |
| 1657 | return false; |
| 1658 | } |
| 1659 | |
| 1660 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 1661 | if (h->dynindx == -1) |
| 1662 | { |
| 1663 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
| 1664 | return false; |
| 1665 | } |
| 1666 | |
| 1667 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
| 1668 | break; |
| 1669 | |
| 1670 | case R_SPARC_PC10: |
| 1671 | case R_SPARC_PC22: |
| 1672 | if (h != NULL |
| 1673 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
| 1674 | break; |
| 1675 | /* Fall through. */ |
| 1676 | case R_SPARC_DISP8: |
| 1677 | case R_SPARC_DISP16: |
| 1678 | case R_SPARC_DISP32: |
| 1679 | case R_SPARC_WDISP30: |
| 1680 | case R_SPARC_WDISP22: |
| 1681 | if (h == NULL) |
| 1682 | break; |
| 1683 | /* Fall through. */ |
| 1684 | case R_SPARC_8: |
| 1685 | case R_SPARC_16: |
| 1686 | case R_SPARC_32: |
| 1687 | case R_SPARC_HI22: |
| 1688 | case R_SPARC_22: |
| 1689 | case R_SPARC_13: |
| 1690 | case R_SPARC_LO10: |
| 1691 | case R_SPARC_UA32: |
| 1692 | if (info->shared |
| 1693 | && (sec->flags & SEC_ALLOC) != 0) |
| 1694 | { |
| 1695 | /* When creating a shared object, we must copy these |
| 1696 | relocs into the output file. We create a reloc |
| 1697 | section in dynobj and make room for the reloc. */ |
| 1698 | if (sreloc == NULL) |
| 1699 | { |
| 1700 | const char *name; |
| 1701 | |
| 1702 | name = (bfd_elf_string_from_elf_section |
| 1703 | (abfd, |
| 1704 | elf_elfheader (abfd)->e_shstrndx, |
| 1705 | elf_section_data (sec)->rel_hdr.sh_name)); |
| 1706 | if (name == NULL) |
| 1707 | return false; |
| 1708 | |
| 1709 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 |
| 1710 | && strcmp (bfd_get_section_name (abfd, sec), |
| 1711 | name + 5) == 0); |
| 1712 | |
| 1713 | sreloc = bfd_get_section_by_name (dynobj, name); |
| 1714 | if (sreloc == NULL) |
| 1715 | { |
| 1716 | sreloc = bfd_make_section (dynobj, name); |
| 1717 | if (sreloc == NULL |
| 1718 | || ! bfd_set_section_flags (dynobj, sreloc, |
| 1719 | (SEC_ALLOC |
| 1720 | | SEC_LOAD |
| 1721 | | SEC_HAS_CONTENTS |
| 1722 | | SEC_IN_MEMORY |
| 1723 | | SEC_READONLY)) |
| 1724 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
| 1725 | return false; |
| 1726 | } |
| 1727 | } |
| 1728 | |
| 1729 | sreloc->_raw_size += sizeof (Elf32_External_Rela); |
| 1730 | } |
| 1731 | |
| 1732 | break; |
| 1733 | #endif |
| 1734 | } |
| 1735 | } |
| 1736 | |
| 1737 | return true; |
| 1738 | } |
| 1739 | |
| 1740 | \f |
| 1741 | /* Finish up dynamic symbol handling. We set the contents of various |
| 1742 | dynamic sections here. */ |
| 1743 | |
| 1744 | static boolean |
| 1745 | ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym) |
| 1746 | bfd *output_bfd; |
| 1747 | struct bfd_link_info *info; |
| 1748 | struct elf_link_hash_entry *h; |
| 1749 | Elf_Internal_Sym *sym; |
| 1750 | { |
| 1751 | bfd *dynobj; |
| 1752 | |
| 1753 | #ifdef DEBUG |
| 1754 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s\n", h->root.root.string); |
| 1755 | #endif |
| 1756 | |
| 1757 | dynobj = elf_hash_table (info)->dynobj; |
| 1758 | BFD_ASSERT (dynobj != NULL); |
| 1759 | |
| 1760 | if (h->plt_offset != (bfd_vma) -1) |
| 1761 | { |
| 1762 | asection *splt; |
| 1763 | asection *srela; |
| 1764 | Elf_Internal_Rela rela; |
| 1765 | |
| 1766 | /* This symbol has an entry in the procedure linkage table. Set |
| 1767 | it up. */ |
| 1768 | |
| 1769 | BFD_ASSERT (h->dynindx != -1); |
| 1770 | |
| 1771 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
| 1772 | srela = bfd_get_section_by_name (dynobj, ".rela.plt"); |
| 1773 | BFD_ASSERT (splt != NULL && srela != NULL); |
| 1774 | |
| 1775 | /* Fill in the entry in the procedure linkage table. */ |
| 1776 | #if 0 |
| 1777 | bfd_put_32 (output_bfd, |
| 1778 | PLT_ENTRY_WORD0 + h->plt_offset, |
| 1779 | splt->contents + h->plt_offset); |
| 1780 | bfd_put_32 (output_bfd, |
| 1781 | (PLT_ENTRY_WORD1 |
| 1782 | + (((- (h->plt_offset + 4)) >> 2) & 0x3fffff)), |
| 1783 | splt->contents + h->plt_offset + 4); |
| 1784 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, |
| 1785 | splt->contents + h->plt_offset + 8); |
| 1786 | |
| 1787 | /* Fill in the entry in the .rela.plt section. */ |
| 1788 | rela.r_offset = (splt->output_section->vma |
| 1789 | + splt->output_offset |
| 1790 | + h->plt_offset); |
| 1791 | rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); |
| 1792 | rela.r_addend = 0; |
| 1793 | bfd_elf32_swap_reloca_out (output_bfd, &rela, |
| 1794 | ((Elf32_External_Rela *) srela->contents |
| 1795 | + h->plt_offset / PLT_ENTRY_SIZE - 4)); |
| 1796 | #endif |
| 1797 | |
| 1798 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
| 1799 | { |
| 1800 | /* Mark the symbol as undefined, rather than as defined in |
| 1801 | the .plt section. Leave the value alone. */ |
| 1802 | sym->st_shndx = SHN_UNDEF; |
| 1803 | } |
| 1804 | } |
| 1805 | |
| 1806 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
| 1807 | { |
| 1808 | asection *s; |
| 1809 | Elf_Internal_Rela rela; |
| 1810 | |
| 1811 | /* This symbols needs a copy reloc. Set it up. */ |
| 1812 | |
| 1813 | BFD_ASSERT (h->dynindx != -1); |
| 1814 | |
| 1815 | s = bfd_get_section_by_name (h->root.u.def.section->owner, |
| 1816 | ".rela.bss"); |
| 1817 | BFD_ASSERT (s != NULL); |
| 1818 | |
| 1819 | rela.r_offset = (h->root.u.def.value |
| 1820 | + h->root.u.def.section->output_section->vma |
| 1821 | + h->root.u.def.section->output_offset); |
| 1822 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); |
| 1823 | rela.r_addend = 0; |
| 1824 | bfd_elf32_swap_reloca_out (output_bfd, &rela, |
| 1825 | ((Elf32_External_Rela *) s->contents |
| 1826 | + s->reloc_count)); |
| 1827 | ++s->reloc_count; |
| 1828 | } |
| 1829 | |
| 1830 | /* Mark some specially defined symbols as absolute. */ |
| 1831 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
| 1832 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 |
| 1833 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) |
| 1834 | sym->st_shndx = SHN_ABS; |
| 1835 | |
| 1836 | return true; |
| 1837 | } |
| 1838 | |
| 1839 | \f |
| 1840 | /* Finish up the dynamic sections. */ |
| 1841 | |
| 1842 | static boolean |
| 1843 | ppc_elf_finish_dynamic_sections (output_bfd, info) |
| 1844 | bfd *output_bfd; |
| 1845 | struct bfd_link_info *info; |
| 1846 | { |
| 1847 | asection *sdyn; |
| 1848 | bfd *dynobj = elf_hash_table (info)->dynobj; |
| 1849 | elf_linker_section_t *got = elf_linker_section (dynobj, LINKER_SECTION_GOT); |
| 1850 | |
| 1851 | #ifdef DEBUG |
| 1852 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); |
| 1853 | #endif |
| 1854 | |
| 1855 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
| 1856 | |
| 1857 | if (elf_hash_table (info)->dynamic_sections_created) |
| 1858 | { |
| 1859 | asection *splt; |
| 1860 | Elf32_External_Dyn *dyncon, *dynconend; |
| 1861 | |
| 1862 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
| 1863 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
| 1864 | |
| 1865 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
| 1866 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); |
| 1867 | for (; dyncon < dynconend; dyncon++) |
| 1868 | { |
| 1869 | Elf_Internal_Dyn dyn; |
| 1870 | const char *name; |
| 1871 | boolean size; |
| 1872 | |
| 1873 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
| 1874 | |
| 1875 | switch (dyn.d_tag) |
| 1876 | { |
| 1877 | case DT_PLTGOT: name = ".plt"; size = false; break; |
| 1878 | case DT_PLTRELSZ: name = ".rela.plt"; size = true; break; |
| 1879 | case DT_JMPREL: name = ".rela.plt"; size = false; break; |
| 1880 | default: name = NULL; size = false; break; |
| 1881 | } |
| 1882 | |
| 1883 | if (name != NULL) |
| 1884 | { |
| 1885 | asection *s; |
| 1886 | |
| 1887 | s = bfd_get_section_by_name (output_bfd, name); |
| 1888 | if (s == NULL) |
| 1889 | dyn.d_un.d_val = 0; |
| 1890 | else |
| 1891 | { |
| 1892 | if (! size) |
| 1893 | dyn.d_un.d_ptr = s->vma; |
| 1894 | else |
| 1895 | { |
| 1896 | if (s->_cooked_size != 0) |
| 1897 | dyn.d_un.d_val = s->_cooked_size; |
| 1898 | else |
| 1899 | dyn.d_un.d_val = s->_raw_size; |
| 1900 | } |
| 1901 | } |
| 1902 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 1903 | } |
| 1904 | } |
| 1905 | } |
| 1906 | |
| 1907 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can |
| 1908 | easily find the address of the _GLOBAL_OFFSET_TABLE_. */ |
| 1909 | if (got) |
| 1910 | { |
| 1911 | unsigned char *contents = got->section->contents + got->hole_offset; |
| 1912 | bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, contents); |
| 1913 | |
| 1914 | if (sdyn == NULL) |
| 1915 | bfd_put_32 (output_bfd, (bfd_vma) 0, contents+4); |
| 1916 | else |
| 1917 | bfd_put_32 (output_bfd, |
| 1918 | sdyn->output_section->vma + sdyn->output_offset, |
| 1919 | contents+4); |
| 1920 | |
| 1921 | elf_section_data (got->section->output_section)->this_hdr.sh_entsize = 4; |
| 1922 | } |
| 1923 | |
| 1924 | if (info->shared) |
| 1925 | { |
| 1926 | asection *sdynsym; |
| 1927 | asection *s; |
| 1928 | Elf_Internal_Sym sym; |
| 1929 | |
| 1930 | /* Set up the section symbols for the output sections. */ |
| 1931 | |
| 1932 | sdynsym = bfd_get_section_by_name (dynobj, ".dynsym"); |
| 1933 | BFD_ASSERT (sdynsym != NULL); |
| 1934 | |
| 1935 | sym.st_size = 0; |
| 1936 | sym.st_name = 0; |
| 1937 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); |
| 1938 | sym.st_other = 0; |
| 1939 | |
| 1940 | for (s = output_bfd->sections; s != NULL; s = s->next) |
| 1941 | { |
| 1942 | int indx; |
| 1943 | |
| 1944 | sym.st_value = s->vma; |
| 1945 | |
| 1946 | indx = elf_section_data (s)->this_idx; |
| 1947 | BFD_ASSERT (indx > 0); |
| 1948 | sym.st_shndx = indx; |
| 1949 | |
| 1950 | bfd_elf32_swap_symbol_out (output_bfd, &sym, |
| 1951 | (PTR) (((Elf32_External_Sym *) |
| 1952 | sdynsym->contents) |
| 1953 | + elf_section_data (s)->dynindx)); |
| 1954 | } |
| 1955 | |
| 1956 | /* Set the sh_info field of the output .dynsym section to the |
| 1957 | index of the first global symbol. */ |
| 1958 | elf_section_data (sdynsym->output_section)->this_hdr.sh_info = |
| 1959 | bfd_count_sections (output_bfd) + 1; |
| 1960 | } |
| 1961 | |
| 1962 | return true; |
| 1963 | } |
| 1964 | |
| 1965 | \f |
| 1966 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 1967 | to handle the relocations for a section. |
| 1968 | |
| 1969 | The relocs are always passed as Rela structures; if the section |
| 1970 | actually uses Rel structures, the r_addend field will always be |
| 1971 | zero. |
| 1972 | |
| 1973 | This function is responsible for adjust the section contents as |
| 1974 | necessary, and (if using Rela relocs and generating a |
| 1975 | relocateable output file) adjusting the reloc addend as |
| 1976 | necessary. |
| 1977 | |
| 1978 | This function does not have to worry about setting the reloc |
| 1979 | address or the reloc symbol index. |
| 1980 | |
| 1981 | LOCAL_SYMS is a pointer to the swapped in local symbols. |
| 1982 | |
| 1983 | LOCAL_SECTIONS is an array giving the section in the input file |
| 1984 | corresponding to the st_shndx field of each local symbol. |
| 1985 | |
| 1986 | The global hash table entry for the global symbols can be found |
| 1987 | via elf_sym_hashes (input_bfd). |
| 1988 | |
| 1989 | When generating relocateable output, this function must handle |
| 1990 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 1991 | going to be the section symbol corresponding to the output |
| 1992 | section, which means that the addend must be adjusted |
| 1993 | accordingly. */ |
| 1994 | |
| 1995 | static boolean |
| 1996 | ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
| 1997 | contents, relocs, local_syms, local_sections) |
| 1998 | bfd *output_bfd; |
| 1999 | struct bfd_link_info *info; |
| 2000 | bfd *input_bfd; |
| 2001 | asection *input_section; |
| 2002 | bfd_byte *contents; |
| 2003 | Elf_Internal_Rela *relocs; |
| 2004 | Elf_Internal_Sym *local_syms; |
| 2005 | asection **local_sections; |
| 2006 | { |
| 2007 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
| 2008 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
| 2009 | bfd *dynobj = elf_hash_table (info)->dynobj; |
| 2010 | elf_linker_section_t *got = elf_linker_section (dynobj, LINKER_SECTION_GOT); |
| 2011 | elf_linker_section_t *sdata = elf_linker_section (dynobj, LINKER_SECTION_SDATA); |
| 2012 | elf_linker_section_t *sdata2 = elf_linker_section (dynobj, LINKER_SECTION_SDATA2); |
| 2013 | Elf_Internal_Rela *rel = relocs; |
| 2014 | Elf_Internal_Rela *relend = relocs + input_section->reloc_count; |
| 2015 | boolean ret = true; |
| 2016 | long insn; |
| 2017 | |
| 2018 | #ifdef DEBUG |
| 2019 | fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, %ld relocations%s\n", |
| 2020 | bfd_get_filename (input_bfd), |
| 2021 | bfd_section_name(input_bfd, input_section), |
| 2022 | (long)input_section->reloc_count, |
| 2023 | (info->relocateable) ? " (relocatable)" : ""); |
| 2024 | #endif |
| 2025 | |
| 2026 | if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */ |
| 2027 | ppc_elf_howto_init (); |
| 2028 | |
| 2029 | for (; rel < relend; rel++) |
| 2030 | { |
| 2031 | enum ppc_reloc_type r_type = (enum ppc_reloc_type)ELF32_R_TYPE (rel->r_info); |
| 2032 | bfd_vma offset = rel->r_offset; |
| 2033 | bfd_vma addend = rel->r_addend; |
| 2034 | bfd_reloc_status_type r = bfd_reloc_other; |
| 2035 | Elf_Internal_Sym *sym = (Elf_Internal_Sym *)0; |
| 2036 | asection *sec = (asection *)0; |
| 2037 | struct elf_link_hash_entry *h = (struct elf_link_hash_entry *)0; |
| 2038 | reloc_howto_type *howto; |
| 2039 | unsigned long r_symndx; |
| 2040 | bfd_vma relocation; |
| 2041 | |
| 2042 | /* Unknown relocation handling */ |
| 2043 | if ((unsigned)r_type >= (unsigned)R_PPC_max || !ppc_elf_howto_table[(int)r_type]) |
| 2044 | { |
| 2045 | (*_bfd_error_handler) ("%s: unknown relocation type %d", |
| 2046 | bfd_get_filename (input_bfd), |
| 2047 | (int)r_type); |
| 2048 | |
| 2049 | bfd_set_error (bfd_error_bad_value); |
| 2050 | ret = false; |
| 2051 | continue; |
| 2052 | } |
| 2053 | |
| 2054 | howto = ppc_elf_howto_table[(int)r_type]; |
| 2055 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 2056 | |
| 2057 | if (info->relocateable) |
| 2058 | { |
| 2059 | /* This is a relocateable link. We don't have to change |
| 2060 | anything, unless the reloc is against a section symbol, |
| 2061 | in which case we have to adjust according to where the |
| 2062 | section symbol winds up in the output section. */ |
| 2063 | if (r_symndx < symtab_hdr->sh_info) |
| 2064 | { |
| 2065 | sym = local_syms + r_symndx; |
| 2066 | if ((unsigned)ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
| 2067 | { |
| 2068 | sec = local_sections[r_symndx]; |
| 2069 | addend = rel->r_addend += sec->output_offset + sym->st_value; |
| 2070 | } |
| 2071 | } |
| 2072 | |
| 2073 | #ifdef DEBUG |
| 2074 | fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n", |
| 2075 | howto->name, |
| 2076 | (int)r_type, |
| 2077 | r_symndx, |
| 2078 | (long)offset, |
| 2079 | (long)addend); |
| 2080 | #endif |
| 2081 | continue; |
| 2082 | } |
| 2083 | |
| 2084 | /* This is a final link. */ |
| 2085 | if (r_symndx < symtab_hdr->sh_info) |
| 2086 | { |
| 2087 | sym = local_syms + r_symndx; |
| 2088 | sec = local_sections[r_symndx]; |
| 2089 | relocation = (sec->output_section->vma |
| 2090 | + sec->output_offset |
| 2091 | + sym->st_value); |
| 2092 | } |
| 2093 | else |
| 2094 | { |
| 2095 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 2096 | if (h->root.type == bfd_link_hash_defined |
| 2097 | || h->root.type == bfd_link_hash_defweak) |
| 2098 | { |
| 2099 | sec = h->root.u.def.section; |
| 2100 | relocation = (h->root.u.def.value |
| 2101 | + sec->output_section->vma |
| 2102 | + sec->output_offset); |
| 2103 | } |
| 2104 | else if (h->root.type == bfd_link_hash_undefweak) |
| 2105 | relocation = 0; |
| 2106 | else if (info->shared) |
| 2107 | relocation = 0; |
| 2108 | else |
| 2109 | { |
| 2110 | (*info->callbacks->undefined_symbol)(info, |
| 2111 | h->root.root.string, |
| 2112 | input_bfd, |
| 2113 | input_section, |
| 2114 | rel->r_offset); |
| 2115 | ret = false; |
| 2116 | continue; |
| 2117 | } |
| 2118 | } |
| 2119 | |
| 2120 | switch ((int)r_type) |
| 2121 | { |
| 2122 | default: |
| 2123 | (*_bfd_error_handler) ("%s: unknown relocation type %d", |
| 2124 | bfd_get_filename (input_bfd), |
| 2125 | (int)r_type); |
| 2126 | |
| 2127 | bfd_set_error (bfd_error_bad_value); |
| 2128 | ret = false; |
| 2129 | continue; |
| 2130 | |
| 2131 | /* relocations that need no special processing */ |
| 2132 | case (int)R_PPC_NONE: |
| 2133 | case (int)R_PPC_ADDR32: |
| 2134 | case (int)R_PPC_ADDR24: |
| 2135 | case (int)R_PPC_ADDR16: |
| 2136 | case (int)R_PPC_ADDR16_LO: |
| 2137 | case (int)R_PPC_ADDR16_HI: |
| 2138 | case (int)R_PPC_ADDR14: |
| 2139 | case (int)R_PPC_REL24: |
| 2140 | case (int)R_PPC_REL14: |
| 2141 | case (int)R_PPC_UADDR32: |
| 2142 | case (int)R_PPC_UADDR16: |
| 2143 | case (int)R_PPC_REL32: |
| 2144 | break; |
| 2145 | |
| 2146 | /* branch taken prediction relocations */ |
| 2147 | case (int)R_PPC_ADDR14_BRTAKEN: |
| 2148 | case (int)R_PPC_REL14_BRTAKEN: |
| 2149 | insn = bfd_get_32 (output_bfd, contents + offset); |
| 2150 | if ((relocation - offset) & 0x8000) |
| 2151 | insn &= ~BRANCH_PREDICT_BIT; |
| 2152 | else |
| 2153 | insn |= BRANCH_PREDICT_BIT; |
| 2154 | bfd_put_32 (output_bfd, insn, contents + offset); |
| 2155 | break; |
| 2156 | |
| 2157 | /* branch not taken predicition relocations */ |
| 2158 | case (int)R_PPC_ADDR14_BRNTAKEN: |
| 2159 | case (int)R_PPC_REL14_BRNTAKEN: |
| 2160 | insn = bfd_get_32 (output_bfd, contents + offset); |
| 2161 | if ((relocation - offset) & 0x8000) |
| 2162 | insn |= BRANCH_PREDICT_BIT; |
| 2163 | else |
| 2164 | insn &= ~BRANCH_PREDICT_BIT; |
| 2165 | bfd_put_32 (output_bfd, insn, contents + offset); |
| 2166 | break; |
| 2167 | |
| 2168 | /* GOT16 relocations */ |
| 2169 | case (int)R_PPC_GOT16: |
| 2170 | case (int)R_PPC_GOT16_LO: |
| 2171 | case (int)R_PPC_GOT16_HI: |
| 2172 | case (int)R_PPC_GOT16_HA: |
| 2173 | relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info, |
| 2174 | got, h, relocation, rel, |
| 2175 | R_PPC_RELATIVE); |
| 2176 | break; |
| 2177 | |
| 2178 | /* Indirect .sdata relocation */ |
| 2179 | case (int)R_PPC_EMB_SDAI16: |
| 2180 | BFD_ASSERT (sdata != NULL); |
| 2181 | relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info, |
| 2182 | sdata, h, relocation, rel, |
| 2183 | R_PPC_RELATIVE); |
| 2184 | break; |
| 2185 | |
| 2186 | /* Indirect .sdata2 relocation */ |
| 2187 | case (int)R_PPC_EMB_SDA2I16: |
| 2188 | BFD_ASSERT (sdata2 != NULL); |
| 2189 | relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info, |
| 2190 | sdata2, h, relocation, rel, |
| 2191 | R_PPC_RELATIVE); |
| 2192 | break; |
| 2193 | |
| 2194 | /* Handle the TOC16 reloc. We want to use the offset within the .got |
| 2195 | section, not the actual VMA. This is appropriate when generating |
| 2196 | an embedded ELF object, for which the .got section acts like the |
| 2197 | AIX .toc section. */ |
| 2198 | case (int)R_PPC_TOC16: /* phony GOT16 relocations */ |
| 2199 | BFD_ASSERT (sec != (asection *)0); |
| 2200 | BFD_ASSERT (bfd_is_und_section (sec) |
| 2201 | || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0 |
| 2202 | || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0) |
| 2203 | |
| 2204 | addend -= sec->output_section->vma + 0x8000; |
| 2205 | break; |
| 2206 | |
| 2207 | /* arithmetic adjust relocations */ |
| 2208 | case (int)R_PPC_ADDR16_HA: |
| 2209 | BFD_ASSERT (sec != (asection *)0); |
| 2210 | addend += ((relocation + addend) & 0x8000) << 1; |
| 2211 | break; |
| 2212 | |
| 2213 | /* relocate against _SDA_BASE_ */ |
| 2214 | case (int)R_PPC_SDAREL16: |
| 2215 | BFD_ASSERT (sec != (asection *)0); |
| 2216 | if (strcmp (bfd_get_section_name (abfd, sec), ".sdata") != 0 |
| 2217 | && strcmp (bfd_get_section_name (abfd, sec), ".sbss") != 0) |
| 2218 | { |
| 2219 | (*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)", |
| 2220 | bfd_get_filename (input_bfd), |
| 2221 | ppc_elf_howto_table[ (int)r_type ]->name, |
| 2222 | bfd_get_section_name (abfd, sec)); |
| 2223 | |
| 2224 | bfd_set_error (bfd_error_bad_value); |
| 2225 | ret = false; |
| 2226 | continue; |
| 2227 | } |
| 2228 | addend -= sdata->sym_hash->root.u.def.value; |
| 2229 | relocation = sdata->sym_hash->root.u.def.section->output_section->vma - relocation; |
| 2230 | break; |
| 2231 | |
| 2232 | |
| 2233 | /* relocate against _SDA2_BASE_ */ |
| 2234 | case (int)R_PPC_EMB_SDA2REL: |
| 2235 | BFD_ASSERT (sec != (asection *)0); |
| 2236 | if (strcmp (bfd_get_section_name (abfd, sec), ".sdata2") != 0 |
| 2237 | && strcmp (bfd_get_section_name (abfd, sec), ".sbss2") != 0) |
| 2238 | { |
| 2239 | (*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)", |
| 2240 | bfd_get_filename (input_bfd), |
| 2241 | ppc_elf_howto_table[ (int)r_type ]->name, |
| 2242 | bfd_get_section_name (abfd, sec)); |
| 2243 | |
| 2244 | bfd_set_error (bfd_error_bad_value); |
| 2245 | ret = false; |
| 2246 | continue; |
| 2247 | } |
| 2248 | addend -= sdata2->sym_hash->root.u.def.value; |
| 2249 | relocation = sdata2->sym_hash->root.u.def.section->output_section->vma - relocation; |
| 2250 | break; |
| 2251 | |
| 2252 | |
| 2253 | /* relocate against either _SDA_BASE_, _SDA2_BASE_, or 0 */ |
| 2254 | case (int)R_PPC_EMB_SDA21: |
| 2255 | case (int)R_PPC_EMB_RELSDA: |
| 2256 | { |
| 2257 | const char *name = bfd_get_section_name (abfd, sec); |
| 2258 | int reg; |
| 2259 | |
| 2260 | BFD_ASSERT (sec != (asection *)0); |
| 2261 | if (strcmp (name, ".sdata") == 0 || strcmp (name, ".sbss") == 0) |
| 2262 | { |
| 2263 | reg = 13; |
| 2264 | addend -= sdata->sym_hash->root.u.def.value; |
| 2265 | relocation = sdata->sym_hash->root.u.def.section->output_section->vma - relocation; |
| 2266 | } |
| 2267 | |
| 2268 | else if (strcmp (name, ".sdata2") == 0 || strcmp (name, ".sbss2") == 0) |
| 2269 | { |
| 2270 | reg = 2; |
| 2271 | addend -= sdata2->sym_hash->root.u.def.value; |
| 2272 | relocation = sdata2->sym_hash->root.u.def.section->output_section->vma - relocation; |
| 2273 | } |
| 2274 | |
| 2275 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 || strcmp (name, ".PPC.EMB.sbss0") == 0) |
| 2276 | { |
| 2277 | reg = 0; |
| 2278 | } |
| 2279 | |
| 2280 | else |
| 2281 | { |
| 2282 | (*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)", |
| 2283 | bfd_get_filename (input_bfd), |
| 2284 | ppc_elf_howto_table[ (int)r_type ]->name, |
| 2285 | bfd_get_section_name (abfd, sec)); |
| 2286 | |
| 2287 | bfd_set_error (bfd_error_bad_value); |
| 2288 | ret = false; |
| 2289 | continue; |
| 2290 | } |
| 2291 | goto unsupported; |
| 2292 | } |
| 2293 | |
| 2294 | case (int)R_PPC_PLTREL24: |
| 2295 | case (int)R_PPC_COPY: |
| 2296 | case (int)R_PPC_GLOB_DAT: |
| 2297 | case (int)R_PPC_JMP_SLOT: |
| 2298 | case (int)R_PPC_RELATIVE: |
| 2299 | case (int)R_PPC_LOCAL24PC: |
| 2300 | case (int)R_PPC_PLT32: |
| 2301 | case (int)R_PPC_PLTREL32: |
| 2302 | case (int)R_PPC_PLT16_LO: |
| 2303 | case (int)R_PPC_PLT16_HI: |
| 2304 | case (int)R_PPC_PLT16_HA: |
| 2305 | case (int)R_PPC_SECTOFF: |
| 2306 | case (int)R_PPC_SECTOFF_LO: |
| 2307 | case (int)R_PPC_SECTOFF_HI: |
| 2308 | case (int)R_PPC_SECTOFF_HA: |
| 2309 | case (int)R_PPC_EMB_NADDR32: |
| 2310 | case (int)R_PPC_EMB_NADDR16: |
| 2311 | case (int)R_PPC_EMB_NADDR16_LO: |
| 2312 | case (int)R_PPC_EMB_NADDR16_HI: |
| 2313 | case (int)R_PPC_EMB_NADDR16_HA: |
| 2314 | case (int)R_PPC_EMB_MRKREF: |
| 2315 | case (int)R_PPC_EMB_RELSEC16: |
| 2316 | case (int)R_PPC_EMB_RELST_LO: |
| 2317 | case (int)R_PPC_EMB_RELST_HI: |
| 2318 | case (int)R_PPC_EMB_RELST_HA: |
| 2319 | case (int)R_PPC_EMB_BIT_FLD: |
| 2320 | unsupported: |
| 2321 | (*_bfd_error_handler) ("%s: Relocation %s is not yet supported.", |
| 2322 | bfd_get_filename (input_bfd), |
| 2323 | ppc_elf_howto_table[ (int)r_type ]->name); |
| 2324 | |
| 2325 | bfd_set_error (bfd_error_invalid_operation); |
| 2326 | ret = false; |
| 2327 | continue; |
| 2328 | } |
| 2329 | |
| 2330 | |
| 2331 | #ifdef DEBUG |
| 2332 | fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n", |
| 2333 | howto->name, |
| 2334 | (int)r_type, |
| 2335 | r_symndx, |
| 2336 | (long)offset, |
| 2337 | (long)addend); |
| 2338 | #endif |
| 2339 | |
| 2340 | r = _bfd_final_link_relocate (howto, |
| 2341 | input_bfd, |
| 2342 | input_section, |
| 2343 | contents, |
| 2344 | offset, |
| 2345 | relocation, |
| 2346 | addend); |
| 2347 | |
| 2348 | if (r != bfd_reloc_ok) |
| 2349 | { |
| 2350 | ret = false; |
| 2351 | switch (r) |
| 2352 | { |
| 2353 | default: |
| 2354 | break; |
| 2355 | |
| 2356 | case bfd_reloc_overflow: |
| 2357 | { |
| 2358 | const char *name; |
| 2359 | |
| 2360 | if (h != NULL) |
| 2361 | name = h->root.root.string; |
| 2362 | else |
| 2363 | { |
| 2364 | name = bfd_elf_string_from_elf_section (input_bfd, |
| 2365 | symtab_hdr->sh_link, |
| 2366 | sym->st_name); |
| 2367 | if (name == NULL) |
| 2368 | break; |
| 2369 | |
| 2370 | if (*name == '\0') |
| 2371 | name = bfd_section_name (input_bfd, sec); |
| 2372 | } |
| 2373 | |
| 2374 | (*info->callbacks->reloc_overflow)(info, |
| 2375 | name, |
| 2376 | howto->name, |
| 2377 | (bfd_vma) 0, |
| 2378 | input_bfd, |
| 2379 | input_section, |
| 2380 | offset); |
| 2381 | } |
| 2382 | break; |
| 2383 | |
| 2384 | } |
| 2385 | } |
| 2386 | } |
| 2387 | |
| 2388 | |
| 2389 | #ifdef DEBUG |
| 2390 | fprintf (stderr, "\n"); |
| 2391 | #endif |
| 2392 | |
| 2393 | return ret; |
| 2394 | } |
| 2395 | |
| 2396 | \f |
| 2397 | #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec |
| 2398 | #define TARGET_LITTLE_NAME "elf32-powerpcle" |
| 2399 | #define TARGET_BIG_SYM bfd_elf32_powerpc_vec |
| 2400 | #define TARGET_BIG_NAME "elf32-powerpc" |
| 2401 | #define ELF_ARCH bfd_arch_powerpc |
| 2402 | #define ELF_MACHINE_CODE EM_PPC |
| 2403 | #define ELF_MAXPAGESIZE 0x10000 |
| 2404 | #define elf_info_to_howto ppc_elf_info_to_howto |
| 2405 | |
| 2406 | #ifdef EM_CYGNUS_POWERPC |
| 2407 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC |
| 2408 | #endif |
| 2409 | |
| 2410 | #ifdef EM_PPC_OLD |
| 2411 | #define ELF_MACHINE_ALT2 EM_PPC_OLD |
| 2412 | #endif |
| 2413 | |
| 2414 | #define bfd_elf32_bfd_copy_private_bfd_data ppc_elf_copy_private_bfd_data |
| 2415 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
| 2416 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags |
| 2417 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup |
| 2418 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr |
| 2419 | #define elf_backend_relocate_section ppc_elf_relocate_section |
| 2420 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
| 2421 | #define elf_backend_check_relocs ppc_elf_check_relocs |
| 2422 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
| 2423 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections |
| 2424 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol |
| 2425 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections |
| 2426 | #define elf_backend_fake_sections ppc_elf_fake_sections |
| 2427 | |
| 2428 | #include "elf32-target.h" |