| 1 | /* IA-64 support for 64-bit ELF |
| 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
| 3 | Contributed by David Mosberger-Tang <davidm@hpl.hp.com> |
| 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 | #include "bfd.h" |
| 22 | #include "sysdep.h" |
| 23 | #include "libbfd.h" |
| 24 | #include "elf-bfd.h" |
| 25 | #include "opcode/ia64.h" |
| 26 | #include "elf/ia64.h" |
| 27 | |
| 28 | /* THE RULES for all the stuff the linker creates -- |
| 29 | |
| 30 | GOT Entries created in response to LTOFF or LTOFF_FPTR |
| 31 | relocations. Dynamic relocs created for dynamic |
| 32 | symbols in an application; REL relocs for locals |
| 33 | in a shared library. |
| 34 | |
| 35 | FPTR The canonical function descriptor. Created for local |
| 36 | symbols in applications. Descriptors for dynamic symbols |
| 37 | and local symbols in shared libraries are created by |
| 38 | ld.so. Thus there are no dynamic relocs against these |
| 39 | objects. The FPTR relocs for such _are_ passed through |
| 40 | to the dynamic relocation tables. |
| 41 | |
| 42 | FULL_PLT Created for a PCREL21B relocation against a dynamic symbol. |
| 43 | Requires the creation of a PLTOFF entry. This does not |
| 44 | require any dynamic relocations. |
| 45 | |
| 46 | PLTOFF Created by PLTOFF relocations. For local symbols, this |
| 47 | is an alternate function descriptor, and in shared libraries |
| 48 | requires two REL relocations. Note that this cannot be |
| 49 | transformed into an FPTR relocation, since it must be in |
| 50 | range of the GP. For dynamic symbols, this is a function |
| 51 | descriptor for a MIN_PLT entry, and requires one IPLT reloc. |
| 52 | |
| 53 | MIN_PLT Created by PLTOFF entries against dynamic symbols. This |
| 54 | does not reqire dynamic relocations. */ |
| 55 | |
| 56 | #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0]))) |
| 57 | |
| 58 | typedef struct bfd_hash_entry *(*new_hash_entry_func) |
| 59 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
| 60 | |
| 61 | /* In dynamically (linker-) created sections, we generally need to keep track |
| 62 | of the place a symbol or expression got allocated to. This is done via hash |
| 63 | tables that store entries of the following type. */ |
| 64 | |
| 65 | struct elfNN_ia64_dyn_sym_info |
| 66 | { |
| 67 | /* The addend for which this entry is relevant. */ |
| 68 | bfd_vma addend; |
| 69 | |
| 70 | /* Next addend in the list. */ |
| 71 | struct elfNN_ia64_dyn_sym_info *next; |
| 72 | |
| 73 | bfd_vma got_offset; |
| 74 | bfd_vma fptr_offset; |
| 75 | bfd_vma pltoff_offset; |
| 76 | bfd_vma plt_offset; |
| 77 | bfd_vma plt2_offset; |
| 78 | bfd_vma tprel_offset; |
| 79 | bfd_vma dtpmod_offset; |
| 80 | bfd_vma dtprel_offset; |
| 81 | |
| 82 | /* The symbol table entry, if any, that this was derrived from. */ |
| 83 | struct elf_link_hash_entry *h; |
| 84 | |
| 85 | /* Used to count non-got, non-plt relocations for delayed sizing |
| 86 | of relocation sections. */ |
| 87 | struct elfNN_ia64_dyn_reloc_entry |
| 88 | { |
| 89 | struct elfNN_ia64_dyn_reloc_entry *next; |
| 90 | asection *srel; |
| 91 | int type; |
| 92 | int count; |
| 93 | } *reloc_entries; |
| 94 | |
| 95 | /* TRUE when the section contents have been updated. */ |
| 96 | unsigned got_done : 1; |
| 97 | unsigned fptr_done : 1; |
| 98 | unsigned pltoff_done : 1; |
| 99 | unsigned tprel_done : 1; |
| 100 | unsigned dtpmod_done : 1; |
| 101 | unsigned dtprel_done : 1; |
| 102 | |
| 103 | /* TRUE for the different kinds of linker data we want created. */ |
| 104 | unsigned want_got : 1; |
| 105 | unsigned want_gotx : 1; |
| 106 | unsigned want_fptr : 1; |
| 107 | unsigned want_ltoff_fptr : 1; |
| 108 | unsigned want_plt : 1; |
| 109 | unsigned want_plt2 : 1; |
| 110 | unsigned want_pltoff : 1; |
| 111 | unsigned want_tprel : 1; |
| 112 | unsigned want_dtpmod : 1; |
| 113 | unsigned want_dtprel : 1; |
| 114 | }; |
| 115 | |
| 116 | struct elfNN_ia64_local_hash_entry |
| 117 | { |
| 118 | struct bfd_hash_entry root; |
| 119 | struct elfNN_ia64_dyn_sym_info *info; |
| 120 | |
| 121 | /* TRUE if this hash entry's addends was translated for |
| 122 | SHF_MERGE optimization. */ |
| 123 | unsigned sec_merge_done : 1; |
| 124 | }; |
| 125 | |
| 126 | struct elfNN_ia64_local_hash_table |
| 127 | { |
| 128 | struct bfd_hash_table root; |
| 129 | /* No additional fields for now. */ |
| 130 | }; |
| 131 | |
| 132 | struct elfNN_ia64_link_hash_entry |
| 133 | { |
| 134 | struct elf_link_hash_entry root; |
| 135 | struct elfNN_ia64_dyn_sym_info *info; |
| 136 | }; |
| 137 | |
| 138 | struct elfNN_ia64_link_hash_table |
| 139 | { |
| 140 | /* The main hash table. */ |
| 141 | struct elf_link_hash_table root; |
| 142 | |
| 143 | asection *got_sec; /* the linkage table section (or NULL) */ |
| 144 | asection *rel_got_sec; /* dynamic relocation section for same */ |
| 145 | asection *fptr_sec; /* function descriptor table (or NULL) */ |
| 146 | asection *plt_sec; /* the primary plt section (or NULL) */ |
| 147 | asection *pltoff_sec; /* private descriptors for plt (or NULL) */ |
| 148 | asection *rel_pltoff_sec; /* dynamic relocation section for same */ |
| 149 | |
| 150 | bfd_size_type minplt_entries; /* number of minplt entries */ |
| 151 | unsigned reltext : 1; /* are there relocs against readonly sections? */ |
| 152 | unsigned self_dtpmod_done : 1;/* has self DTPMOD entry been finished? */ |
| 153 | bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry */ |
| 154 | |
| 155 | struct elfNN_ia64_local_hash_table loc_hash_table; |
| 156 | }; |
| 157 | |
| 158 | struct elfNN_ia64_allocate_data |
| 159 | { |
| 160 | struct bfd_link_info *info; |
| 161 | bfd_size_type ofs; |
| 162 | }; |
| 163 | |
| 164 | #define elfNN_ia64_hash_table(p) \ |
| 165 | ((struct elfNN_ia64_link_hash_table *) ((p)->hash)) |
| 166 | |
| 167 | static bfd_reloc_status_type elfNN_ia64_reloc |
| 168 | PARAMS ((bfd *abfd, arelent *reloc, asymbol *sym, PTR data, |
| 169 | asection *input_section, bfd *output_bfd, char **error_message)); |
| 170 | static reloc_howto_type * lookup_howto |
| 171 | PARAMS ((unsigned int rtype)); |
| 172 | static reloc_howto_type *elfNN_ia64_reloc_type_lookup |
| 173 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type bfd_code)); |
| 174 | static void elfNN_ia64_info_to_howto |
| 175 | PARAMS ((bfd *abfd, arelent *bfd_reloc, Elf_Internal_Rela *elf_reloc)); |
| 176 | static bfd_boolean elfNN_ia64_relax_section |
| 177 | PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info, |
| 178 | bfd_boolean *again)); |
| 179 | static void elfNN_ia64_relax_ldxmov |
| 180 | PARAMS((bfd *abfd, bfd_byte *contents, bfd_vma off)); |
| 181 | static bfd_boolean is_unwind_section_name |
| 182 | PARAMS ((bfd *abfd, const char *)); |
| 183 | static bfd_boolean elfNN_ia64_section_from_shdr |
| 184 | PARAMS ((bfd *, Elf_Internal_Shdr *, const char *)); |
| 185 | static bfd_boolean elfNN_ia64_section_flags |
| 186 | PARAMS ((flagword *, Elf_Internal_Shdr *)); |
| 187 | static bfd_boolean elfNN_ia64_fake_sections |
| 188 | PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, asection *sec)); |
| 189 | static void elfNN_ia64_final_write_processing |
| 190 | PARAMS ((bfd *abfd, bfd_boolean linker)); |
| 191 | static bfd_boolean elfNN_ia64_add_symbol_hook |
| 192 | PARAMS ((bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *sym, |
| 193 | const char **namep, flagword *flagsp, asection **secp, |
| 194 | bfd_vma *valp)); |
| 195 | static bfd_boolean elfNN_ia64_aix_vec |
| 196 | PARAMS ((const bfd_target *vec)); |
| 197 | static bfd_boolean elfNN_ia64_aix_add_symbol_hook |
| 198 | PARAMS ((bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *sym, |
| 199 | const char **namep, flagword *flagsp, asection **secp, |
| 200 | bfd_vma *valp)); |
| 201 | static bfd_boolean elfNN_ia64_aix_link_add_symbols |
| 202 | PARAMS ((bfd *abfd, struct bfd_link_info *info)); |
| 203 | static int elfNN_ia64_additional_program_headers |
| 204 | PARAMS ((bfd *abfd)); |
| 205 | static bfd_boolean elfNN_ia64_modify_segment_map |
| 206 | PARAMS ((bfd *)); |
| 207 | static bfd_boolean elfNN_ia64_is_local_label_name |
| 208 | PARAMS ((bfd *abfd, const char *name)); |
| 209 | static bfd_boolean elfNN_ia64_dynamic_symbol_p |
| 210 | PARAMS ((struct elf_link_hash_entry *h, struct bfd_link_info *info)); |
| 211 | static bfd_boolean elfNN_ia64_local_hash_table_init |
| 212 | PARAMS ((struct elfNN_ia64_local_hash_table *ht, bfd *abfd, |
| 213 | new_hash_entry_func new)); |
| 214 | static struct bfd_hash_entry *elfNN_ia64_new_loc_hash_entry |
| 215 | PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table, |
| 216 | const char *string)); |
| 217 | static struct bfd_hash_entry *elfNN_ia64_new_elf_hash_entry |
| 218 | PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table, |
| 219 | const char *string)); |
| 220 | static void elfNN_ia64_hash_copy_indirect |
| 221 | PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *, |
| 222 | struct elf_link_hash_entry *)); |
| 223 | static void elfNN_ia64_hash_hide_symbol |
| 224 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean)); |
| 225 | static struct bfd_link_hash_table *elfNN_ia64_hash_table_create |
| 226 | PARAMS ((bfd *abfd)); |
| 227 | static struct elfNN_ia64_local_hash_entry *elfNN_ia64_local_hash_lookup |
| 228 | PARAMS ((struct elfNN_ia64_local_hash_table *table, const char *string, |
| 229 | bfd_boolean create, bfd_boolean copy)); |
| 230 | static bfd_boolean elfNN_ia64_global_dyn_sym_thunk |
| 231 | PARAMS ((struct bfd_hash_entry *, PTR)); |
| 232 | static bfd_boolean elfNN_ia64_local_dyn_sym_thunk |
| 233 | PARAMS ((struct bfd_hash_entry *, PTR)); |
| 234 | static void elfNN_ia64_dyn_sym_traverse |
| 235 | PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info, |
| 236 | bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR), |
| 237 | PTR info)); |
| 238 | static bfd_boolean elfNN_ia64_create_dynamic_sections |
| 239 | PARAMS ((bfd *abfd, struct bfd_link_info *info)); |
| 240 | static struct elfNN_ia64_local_hash_entry * get_local_sym_hash |
| 241 | PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info, |
| 242 | bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create)); |
| 243 | static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info |
| 244 | PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info, |
| 245 | struct elf_link_hash_entry *h, |
| 246 | bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create)); |
| 247 | static asection *get_got |
| 248 | PARAMS ((bfd *abfd, struct bfd_link_info *info, |
| 249 | struct elfNN_ia64_link_hash_table *ia64_info)); |
| 250 | static asection *get_fptr |
| 251 | PARAMS ((bfd *abfd, struct bfd_link_info *info, |
| 252 | struct elfNN_ia64_link_hash_table *ia64_info)); |
| 253 | static asection *get_pltoff |
| 254 | PARAMS ((bfd *abfd, struct bfd_link_info *info, |
| 255 | struct elfNN_ia64_link_hash_table *ia64_info)); |
| 256 | static asection *get_reloc_section |
| 257 | PARAMS ((bfd *abfd, struct elfNN_ia64_link_hash_table *ia64_info, |
| 258 | asection *sec, bfd_boolean create)); |
| 259 | static bfd_boolean count_dyn_reloc |
| 260 | PARAMS ((bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i, |
| 261 | asection *srel, int type)); |
| 262 | static bfd_boolean elfNN_ia64_check_relocs |
| 263 | PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec, |
| 264 | const Elf_Internal_Rela *relocs)); |
| 265 | static bfd_boolean elfNN_ia64_adjust_dynamic_symbol |
| 266 | PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h)); |
| 267 | static long global_sym_index |
| 268 | PARAMS ((struct elf_link_hash_entry *h)); |
| 269 | static bfd_boolean allocate_fptr |
| 270 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 271 | static bfd_boolean allocate_global_data_got |
| 272 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 273 | static bfd_boolean allocate_global_fptr_got |
| 274 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 275 | static bfd_boolean allocate_local_got |
| 276 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 277 | static bfd_boolean allocate_pltoff_entries |
| 278 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 279 | static bfd_boolean allocate_plt_entries |
| 280 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 281 | static bfd_boolean allocate_plt2_entries |
| 282 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 283 | static bfd_boolean allocate_dynrel_entries |
| 284 | PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)); |
| 285 | static bfd_boolean elfNN_ia64_size_dynamic_sections |
| 286 | PARAMS ((bfd *output_bfd, struct bfd_link_info *info)); |
| 287 | static bfd_reloc_status_type elfNN_ia64_install_value |
| 288 | PARAMS ((bfd *abfd, bfd_byte *hit_addr, bfd_vma val, unsigned int r_type)); |
| 289 | static void elfNN_ia64_install_dyn_reloc |
| 290 | PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec, |
| 291 | asection *srel, bfd_vma offset, unsigned int type, |
| 292 | long dynindx, bfd_vma addend)); |
| 293 | static bfd_vma set_got_entry |
| 294 | PARAMS ((bfd *abfd, struct bfd_link_info *info, |
| 295 | struct elfNN_ia64_dyn_sym_info *dyn_i, long dynindx, |
| 296 | bfd_vma addend, bfd_vma value, unsigned int dyn_r_type)); |
| 297 | static bfd_vma set_fptr_entry |
| 298 | PARAMS ((bfd *abfd, struct bfd_link_info *info, |
| 299 | struct elfNN_ia64_dyn_sym_info *dyn_i, |
| 300 | bfd_vma value)); |
| 301 | static bfd_vma set_pltoff_entry |
| 302 | PARAMS ((bfd *abfd, struct bfd_link_info *info, |
| 303 | struct elfNN_ia64_dyn_sym_info *dyn_i, |
| 304 | bfd_vma value, bfd_boolean)); |
| 305 | static bfd_vma elfNN_ia64_tprel_base |
| 306 | PARAMS ((struct bfd_link_info *info)); |
| 307 | static bfd_vma elfNN_ia64_dtprel_base |
| 308 | PARAMS ((struct bfd_link_info *info)); |
| 309 | static int elfNN_ia64_unwind_entry_compare |
| 310 | PARAMS ((const PTR, const PTR)); |
| 311 | static bfd_boolean elfNN_ia64_choose_gp |
| 312 | PARAMS ((bfd *abfd, struct bfd_link_info *info)); |
| 313 | static bfd_boolean elfNN_ia64_final_link |
| 314 | PARAMS ((bfd *abfd, struct bfd_link_info *info)); |
| 315 | static bfd_boolean elfNN_ia64_relocate_section |
| 316 | PARAMS ((bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd, |
| 317 | asection *input_section, bfd_byte *contents, |
| 318 | Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, |
| 319 | asection **local_sections)); |
| 320 | static bfd_boolean elfNN_ia64_finish_dynamic_symbol |
| 321 | PARAMS ((bfd *output_bfd, struct bfd_link_info *info, |
| 322 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym)); |
| 323 | static bfd_boolean elfNN_ia64_finish_dynamic_sections |
| 324 | PARAMS ((bfd *abfd, struct bfd_link_info *info)); |
| 325 | static bfd_boolean elfNN_ia64_set_private_flags |
| 326 | PARAMS ((bfd *abfd, flagword flags)); |
| 327 | static bfd_boolean elfNN_ia64_merge_private_bfd_data |
| 328 | PARAMS ((bfd *ibfd, bfd *obfd)); |
| 329 | static bfd_boolean elfNN_ia64_print_private_bfd_data |
| 330 | PARAMS ((bfd *abfd, PTR ptr)); |
| 331 | static enum elf_reloc_type_class elfNN_ia64_reloc_type_class |
| 332 | PARAMS ((const Elf_Internal_Rela *)); |
| 333 | static bfd_boolean elfNN_ia64_hpux_vec |
| 334 | PARAMS ((const bfd_target *vec)); |
| 335 | static void elfNN_hpux_post_process_headers |
| 336 | PARAMS ((bfd *abfd, struct bfd_link_info *info)); |
| 337 | bfd_boolean elfNN_hpux_backend_section_from_bfd_section |
| 338 | PARAMS ((bfd *abfd, asection *sec, int *retval)); |
| 339 | \f |
| 340 | /* ia64-specific relocation. */ |
| 341 | |
| 342 | /* Perform a relocation. Not much to do here as all the hard work is |
| 343 | done in elfNN_ia64_final_link_relocate. */ |
| 344 | static bfd_reloc_status_type |
| 345 | elfNN_ia64_reloc (abfd, reloc, sym, data, input_section, |
| 346 | output_bfd, error_message) |
| 347 | bfd *abfd ATTRIBUTE_UNUSED; |
| 348 | arelent *reloc; |
| 349 | asymbol *sym ATTRIBUTE_UNUSED; |
| 350 | PTR data ATTRIBUTE_UNUSED; |
| 351 | asection *input_section; |
| 352 | bfd *output_bfd; |
| 353 | char **error_message; |
| 354 | { |
| 355 | if (output_bfd) |
| 356 | { |
| 357 | reloc->address += input_section->output_offset; |
| 358 | return bfd_reloc_ok; |
| 359 | } |
| 360 | |
| 361 | if (input_section->flags & SEC_DEBUGGING) |
| 362 | return bfd_reloc_continue; |
| 363 | |
| 364 | *error_message = "Unsupported call to elfNN_ia64_reloc"; |
| 365 | return bfd_reloc_notsupported; |
| 366 | } |
| 367 | |
| 368 | #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \ |
| 369 | HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \ |
| 370 | elfNN_ia64_reloc, NAME, FALSE, 0, 0, IN) |
| 371 | |
| 372 | /* This table has to be sorted according to increasing number of the |
| 373 | TYPE field. */ |
| 374 | static reloc_howto_type ia64_howto_table[] = |
| 375 | { |
| 376 | IA64_HOWTO (R_IA64_NONE, "NONE", 0, FALSE, TRUE), |
| 377 | |
| 378 | IA64_HOWTO (R_IA64_IMM14, "IMM14", 0, FALSE, TRUE), |
| 379 | IA64_HOWTO (R_IA64_IMM22, "IMM22", 0, FALSE, TRUE), |
| 380 | IA64_HOWTO (R_IA64_IMM64, "IMM64", 0, FALSE, TRUE), |
| 381 | IA64_HOWTO (R_IA64_DIR32MSB, "DIR32MSB", 2, FALSE, TRUE), |
| 382 | IA64_HOWTO (R_IA64_DIR32LSB, "DIR32LSB", 2, FALSE, TRUE), |
| 383 | IA64_HOWTO (R_IA64_DIR64MSB, "DIR64MSB", 4, FALSE, TRUE), |
| 384 | IA64_HOWTO (R_IA64_DIR64LSB, "DIR64LSB", 4, FALSE, TRUE), |
| 385 | |
| 386 | IA64_HOWTO (R_IA64_GPREL22, "GPREL22", 0, FALSE, TRUE), |
| 387 | IA64_HOWTO (R_IA64_GPREL64I, "GPREL64I", 0, FALSE, TRUE), |
| 388 | IA64_HOWTO (R_IA64_GPREL32MSB, "GPREL32MSB", 2, FALSE, TRUE), |
| 389 | IA64_HOWTO (R_IA64_GPREL32LSB, "GPREL32LSB", 2, FALSE, TRUE), |
| 390 | IA64_HOWTO (R_IA64_GPREL64MSB, "GPREL64MSB", 4, FALSE, TRUE), |
| 391 | IA64_HOWTO (R_IA64_GPREL64LSB, "GPREL64LSB", 4, FALSE, TRUE), |
| 392 | |
| 393 | IA64_HOWTO (R_IA64_LTOFF22, "LTOFF22", 0, FALSE, TRUE), |
| 394 | IA64_HOWTO (R_IA64_LTOFF64I, "LTOFF64I", 0, FALSE, TRUE), |
| 395 | |
| 396 | IA64_HOWTO (R_IA64_PLTOFF22, "PLTOFF22", 0, FALSE, TRUE), |
| 397 | IA64_HOWTO (R_IA64_PLTOFF64I, "PLTOFF64I", 0, FALSE, TRUE), |
| 398 | IA64_HOWTO (R_IA64_PLTOFF64MSB, "PLTOFF64MSB", 4, FALSE, TRUE), |
| 399 | IA64_HOWTO (R_IA64_PLTOFF64LSB, "PLTOFF64LSB", 4, FALSE, TRUE), |
| 400 | |
| 401 | IA64_HOWTO (R_IA64_FPTR64I, "FPTR64I", 0, FALSE, TRUE), |
| 402 | IA64_HOWTO (R_IA64_FPTR32MSB, "FPTR32MSB", 2, FALSE, TRUE), |
| 403 | IA64_HOWTO (R_IA64_FPTR32LSB, "FPTR32LSB", 2, FALSE, TRUE), |
| 404 | IA64_HOWTO (R_IA64_FPTR64MSB, "FPTR64MSB", 4, FALSE, TRUE), |
| 405 | IA64_HOWTO (R_IA64_FPTR64LSB, "FPTR64LSB", 4, FALSE, TRUE), |
| 406 | |
| 407 | IA64_HOWTO (R_IA64_PCREL60B, "PCREL60B", 0, TRUE, TRUE), |
| 408 | IA64_HOWTO (R_IA64_PCREL21B, "PCREL21B", 0, TRUE, TRUE), |
| 409 | IA64_HOWTO (R_IA64_PCREL21M, "PCREL21M", 0, TRUE, TRUE), |
| 410 | IA64_HOWTO (R_IA64_PCREL21F, "PCREL21F", 0, TRUE, TRUE), |
| 411 | IA64_HOWTO (R_IA64_PCREL32MSB, "PCREL32MSB", 2, TRUE, TRUE), |
| 412 | IA64_HOWTO (R_IA64_PCREL32LSB, "PCREL32LSB", 2, TRUE, TRUE), |
| 413 | IA64_HOWTO (R_IA64_PCREL64MSB, "PCREL64MSB", 4, TRUE, TRUE), |
| 414 | IA64_HOWTO (R_IA64_PCREL64LSB, "PCREL64LSB", 4, TRUE, TRUE), |
| 415 | |
| 416 | IA64_HOWTO (R_IA64_LTOFF_FPTR22, "LTOFF_FPTR22", 0, FALSE, TRUE), |
| 417 | IA64_HOWTO (R_IA64_LTOFF_FPTR64I, "LTOFF_FPTR64I", 0, FALSE, TRUE), |
| 418 | IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB, "LTOFF_FPTR32MSB", 2, FALSE, TRUE), |
| 419 | IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB, "LTOFF_FPTR32LSB", 2, FALSE, TRUE), |
| 420 | IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB, "LTOFF_FPTR64MSB", 4, FALSE, TRUE), |
| 421 | IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB, "LTOFF_FPTR64LSB", 4, FALSE, TRUE), |
| 422 | |
| 423 | IA64_HOWTO (R_IA64_SEGREL32MSB, "SEGREL32MSB", 2, FALSE, TRUE), |
| 424 | IA64_HOWTO (R_IA64_SEGREL32LSB, "SEGREL32LSB", 2, FALSE, TRUE), |
| 425 | IA64_HOWTO (R_IA64_SEGREL64MSB, "SEGREL64MSB", 4, FALSE, TRUE), |
| 426 | IA64_HOWTO (R_IA64_SEGREL64LSB, "SEGREL64LSB", 4, FALSE, TRUE), |
| 427 | |
| 428 | IA64_HOWTO (R_IA64_SECREL32MSB, "SECREL32MSB", 2, FALSE, TRUE), |
| 429 | IA64_HOWTO (R_IA64_SECREL32LSB, "SECREL32LSB", 2, FALSE, TRUE), |
| 430 | IA64_HOWTO (R_IA64_SECREL64MSB, "SECREL64MSB", 4, FALSE, TRUE), |
| 431 | IA64_HOWTO (R_IA64_SECREL64LSB, "SECREL64LSB", 4, FALSE, TRUE), |
| 432 | |
| 433 | IA64_HOWTO (R_IA64_REL32MSB, "REL32MSB", 2, FALSE, TRUE), |
| 434 | IA64_HOWTO (R_IA64_REL32LSB, "REL32LSB", 2, FALSE, TRUE), |
| 435 | IA64_HOWTO (R_IA64_REL64MSB, "REL64MSB", 4, FALSE, TRUE), |
| 436 | IA64_HOWTO (R_IA64_REL64LSB, "REL64LSB", 4, FALSE, TRUE), |
| 437 | |
| 438 | IA64_HOWTO (R_IA64_LTV32MSB, "LTV32MSB", 2, FALSE, TRUE), |
| 439 | IA64_HOWTO (R_IA64_LTV32LSB, "LTV32LSB", 2, FALSE, TRUE), |
| 440 | IA64_HOWTO (R_IA64_LTV64MSB, "LTV64MSB", 4, FALSE, TRUE), |
| 441 | IA64_HOWTO (R_IA64_LTV64LSB, "LTV64LSB", 4, FALSE, TRUE), |
| 442 | |
| 443 | IA64_HOWTO (R_IA64_PCREL21BI, "PCREL21BI", 0, TRUE, TRUE), |
| 444 | IA64_HOWTO (R_IA64_PCREL22, "PCREL22", 0, TRUE, TRUE), |
| 445 | IA64_HOWTO (R_IA64_PCREL64I, "PCREL64I", 0, TRUE, TRUE), |
| 446 | |
| 447 | IA64_HOWTO (R_IA64_IPLTMSB, "IPLTMSB", 4, FALSE, TRUE), |
| 448 | IA64_HOWTO (R_IA64_IPLTLSB, "IPLTLSB", 4, FALSE, TRUE), |
| 449 | IA64_HOWTO (R_IA64_COPY, "COPY", 4, FALSE, TRUE), |
| 450 | IA64_HOWTO (R_IA64_LTOFF22X, "LTOFF22X", 0, FALSE, TRUE), |
| 451 | IA64_HOWTO (R_IA64_LDXMOV, "LDXMOV", 0, FALSE, TRUE), |
| 452 | |
| 453 | IA64_HOWTO (R_IA64_TPREL14, "TPREL14", 0, FALSE, FALSE), |
| 454 | IA64_HOWTO (R_IA64_TPREL22, "TPREL22", 0, FALSE, FALSE), |
| 455 | IA64_HOWTO (R_IA64_TPREL64I, "TPREL64I", 0, FALSE, FALSE), |
| 456 | IA64_HOWTO (R_IA64_TPREL64MSB, "TPREL64MSB", 8, FALSE, FALSE), |
| 457 | IA64_HOWTO (R_IA64_TPREL64LSB, "TPREL64LSB", 8, FALSE, FALSE), |
| 458 | IA64_HOWTO (R_IA64_LTOFF_TPREL22, "LTOFF_TPREL22", 0, FALSE, FALSE), |
| 459 | |
| 460 | IA64_HOWTO (R_IA64_DTPMOD64MSB, "TPREL64MSB", 8, FALSE, FALSE), |
| 461 | IA64_HOWTO (R_IA64_DTPMOD64LSB, "TPREL64LSB", 8, FALSE, FALSE), |
| 462 | IA64_HOWTO (R_IA64_LTOFF_DTPMOD22, "LTOFF_DTPMOD22", 0, FALSE, FALSE), |
| 463 | |
| 464 | IA64_HOWTO (R_IA64_DTPREL14, "DTPREL14", 0, FALSE, FALSE), |
| 465 | IA64_HOWTO (R_IA64_DTPREL22, "DTPREL22", 0, FALSE, FALSE), |
| 466 | IA64_HOWTO (R_IA64_DTPREL64I, "DTPREL64I", 0, FALSE, FALSE), |
| 467 | IA64_HOWTO (R_IA64_DTPREL32MSB, "DTPREL32MSB", 4, FALSE, FALSE), |
| 468 | IA64_HOWTO (R_IA64_DTPREL32LSB, "DTPREL32LSB", 4, FALSE, FALSE), |
| 469 | IA64_HOWTO (R_IA64_DTPREL64MSB, "DTPREL64MSB", 8, FALSE, FALSE), |
| 470 | IA64_HOWTO (R_IA64_DTPREL64LSB, "DTPREL64LSB", 8, FALSE, FALSE), |
| 471 | IA64_HOWTO (R_IA64_LTOFF_DTPREL22, "LTOFF_DTPREL22", 0, FALSE, FALSE), |
| 472 | }; |
| 473 | |
| 474 | static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1]; |
| 475 | |
| 476 | /* Given a BFD reloc type, return the matching HOWTO structure. */ |
| 477 | |
| 478 | static reloc_howto_type * |
| 479 | lookup_howto (rtype) |
| 480 | unsigned int rtype; |
| 481 | { |
| 482 | static int inited = 0; |
| 483 | int i; |
| 484 | |
| 485 | if (!inited) |
| 486 | { |
| 487 | inited = 1; |
| 488 | |
| 489 | memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index)); |
| 490 | for (i = 0; i < NELEMS (ia64_howto_table); ++i) |
| 491 | elf_code_to_howto_index[ia64_howto_table[i].type] = i; |
| 492 | } |
| 493 | |
| 494 | BFD_ASSERT (rtype <= R_IA64_MAX_RELOC_CODE); |
| 495 | i = elf_code_to_howto_index[rtype]; |
| 496 | if (i >= NELEMS (ia64_howto_table)) |
| 497 | return 0; |
| 498 | return ia64_howto_table + i; |
| 499 | } |
| 500 | |
| 501 | static reloc_howto_type* |
| 502 | elfNN_ia64_reloc_type_lookup (abfd, bfd_code) |
| 503 | bfd *abfd ATTRIBUTE_UNUSED; |
| 504 | bfd_reloc_code_real_type bfd_code; |
| 505 | { |
| 506 | unsigned int rtype; |
| 507 | |
| 508 | switch (bfd_code) |
| 509 | { |
| 510 | case BFD_RELOC_NONE: rtype = R_IA64_NONE; break; |
| 511 | |
| 512 | case BFD_RELOC_IA64_IMM14: rtype = R_IA64_IMM14; break; |
| 513 | case BFD_RELOC_IA64_IMM22: rtype = R_IA64_IMM22; break; |
| 514 | case BFD_RELOC_IA64_IMM64: rtype = R_IA64_IMM64; break; |
| 515 | |
| 516 | case BFD_RELOC_IA64_DIR32MSB: rtype = R_IA64_DIR32MSB; break; |
| 517 | case BFD_RELOC_IA64_DIR32LSB: rtype = R_IA64_DIR32LSB; break; |
| 518 | case BFD_RELOC_IA64_DIR64MSB: rtype = R_IA64_DIR64MSB; break; |
| 519 | case BFD_RELOC_IA64_DIR64LSB: rtype = R_IA64_DIR64LSB; break; |
| 520 | |
| 521 | case BFD_RELOC_IA64_GPREL22: rtype = R_IA64_GPREL22; break; |
| 522 | case BFD_RELOC_IA64_GPREL64I: rtype = R_IA64_GPREL64I; break; |
| 523 | case BFD_RELOC_IA64_GPREL32MSB: rtype = R_IA64_GPREL32MSB; break; |
| 524 | case BFD_RELOC_IA64_GPREL32LSB: rtype = R_IA64_GPREL32LSB; break; |
| 525 | case BFD_RELOC_IA64_GPREL64MSB: rtype = R_IA64_GPREL64MSB; break; |
| 526 | case BFD_RELOC_IA64_GPREL64LSB: rtype = R_IA64_GPREL64LSB; break; |
| 527 | |
| 528 | case BFD_RELOC_IA64_LTOFF22: rtype = R_IA64_LTOFF22; break; |
| 529 | case BFD_RELOC_IA64_LTOFF64I: rtype = R_IA64_LTOFF64I; break; |
| 530 | |
| 531 | case BFD_RELOC_IA64_PLTOFF22: rtype = R_IA64_PLTOFF22; break; |
| 532 | case BFD_RELOC_IA64_PLTOFF64I: rtype = R_IA64_PLTOFF64I; break; |
| 533 | case BFD_RELOC_IA64_PLTOFF64MSB: rtype = R_IA64_PLTOFF64MSB; break; |
| 534 | case BFD_RELOC_IA64_PLTOFF64LSB: rtype = R_IA64_PLTOFF64LSB; break; |
| 535 | case BFD_RELOC_IA64_FPTR64I: rtype = R_IA64_FPTR64I; break; |
| 536 | case BFD_RELOC_IA64_FPTR32MSB: rtype = R_IA64_FPTR32MSB; break; |
| 537 | case BFD_RELOC_IA64_FPTR32LSB: rtype = R_IA64_FPTR32LSB; break; |
| 538 | case BFD_RELOC_IA64_FPTR64MSB: rtype = R_IA64_FPTR64MSB; break; |
| 539 | case BFD_RELOC_IA64_FPTR64LSB: rtype = R_IA64_FPTR64LSB; break; |
| 540 | |
| 541 | case BFD_RELOC_IA64_PCREL21B: rtype = R_IA64_PCREL21B; break; |
| 542 | case BFD_RELOC_IA64_PCREL21BI: rtype = R_IA64_PCREL21BI; break; |
| 543 | case BFD_RELOC_IA64_PCREL21M: rtype = R_IA64_PCREL21M; break; |
| 544 | case BFD_RELOC_IA64_PCREL21F: rtype = R_IA64_PCREL21F; break; |
| 545 | case BFD_RELOC_IA64_PCREL22: rtype = R_IA64_PCREL22; break; |
| 546 | case BFD_RELOC_IA64_PCREL60B: rtype = R_IA64_PCREL60B; break; |
| 547 | case BFD_RELOC_IA64_PCREL64I: rtype = R_IA64_PCREL64I; break; |
| 548 | case BFD_RELOC_IA64_PCREL32MSB: rtype = R_IA64_PCREL32MSB; break; |
| 549 | case BFD_RELOC_IA64_PCREL32LSB: rtype = R_IA64_PCREL32LSB; break; |
| 550 | case BFD_RELOC_IA64_PCREL64MSB: rtype = R_IA64_PCREL64MSB; break; |
| 551 | case BFD_RELOC_IA64_PCREL64LSB: rtype = R_IA64_PCREL64LSB; break; |
| 552 | |
| 553 | case BFD_RELOC_IA64_LTOFF_FPTR22: rtype = R_IA64_LTOFF_FPTR22; break; |
| 554 | case BFD_RELOC_IA64_LTOFF_FPTR64I: rtype = R_IA64_LTOFF_FPTR64I; break; |
| 555 | case BFD_RELOC_IA64_LTOFF_FPTR32MSB: rtype = R_IA64_LTOFF_FPTR32MSB; break; |
| 556 | case BFD_RELOC_IA64_LTOFF_FPTR32LSB: rtype = R_IA64_LTOFF_FPTR32LSB; break; |
| 557 | case BFD_RELOC_IA64_LTOFF_FPTR64MSB: rtype = R_IA64_LTOFF_FPTR64MSB; break; |
| 558 | case BFD_RELOC_IA64_LTOFF_FPTR64LSB: rtype = R_IA64_LTOFF_FPTR64LSB; break; |
| 559 | |
| 560 | case BFD_RELOC_IA64_SEGREL32MSB: rtype = R_IA64_SEGREL32MSB; break; |
| 561 | case BFD_RELOC_IA64_SEGREL32LSB: rtype = R_IA64_SEGREL32LSB; break; |
| 562 | case BFD_RELOC_IA64_SEGREL64MSB: rtype = R_IA64_SEGREL64MSB; break; |
| 563 | case BFD_RELOC_IA64_SEGREL64LSB: rtype = R_IA64_SEGREL64LSB; break; |
| 564 | |
| 565 | case BFD_RELOC_IA64_SECREL32MSB: rtype = R_IA64_SECREL32MSB; break; |
| 566 | case BFD_RELOC_IA64_SECREL32LSB: rtype = R_IA64_SECREL32LSB; break; |
| 567 | case BFD_RELOC_IA64_SECREL64MSB: rtype = R_IA64_SECREL64MSB; break; |
| 568 | case BFD_RELOC_IA64_SECREL64LSB: rtype = R_IA64_SECREL64LSB; break; |
| 569 | |
| 570 | case BFD_RELOC_IA64_REL32MSB: rtype = R_IA64_REL32MSB; break; |
| 571 | case BFD_RELOC_IA64_REL32LSB: rtype = R_IA64_REL32LSB; break; |
| 572 | case BFD_RELOC_IA64_REL64MSB: rtype = R_IA64_REL64MSB; break; |
| 573 | case BFD_RELOC_IA64_REL64LSB: rtype = R_IA64_REL64LSB; break; |
| 574 | |
| 575 | case BFD_RELOC_IA64_LTV32MSB: rtype = R_IA64_LTV32MSB; break; |
| 576 | case BFD_RELOC_IA64_LTV32LSB: rtype = R_IA64_LTV32LSB; break; |
| 577 | case BFD_RELOC_IA64_LTV64MSB: rtype = R_IA64_LTV64MSB; break; |
| 578 | case BFD_RELOC_IA64_LTV64LSB: rtype = R_IA64_LTV64LSB; break; |
| 579 | |
| 580 | case BFD_RELOC_IA64_IPLTMSB: rtype = R_IA64_IPLTMSB; break; |
| 581 | case BFD_RELOC_IA64_IPLTLSB: rtype = R_IA64_IPLTLSB; break; |
| 582 | case BFD_RELOC_IA64_COPY: rtype = R_IA64_COPY; break; |
| 583 | case BFD_RELOC_IA64_LTOFF22X: rtype = R_IA64_LTOFF22X; break; |
| 584 | case BFD_RELOC_IA64_LDXMOV: rtype = R_IA64_LDXMOV; break; |
| 585 | |
| 586 | case BFD_RELOC_IA64_TPREL14: rtype = R_IA64_TPREL14; break; |
| 587 | case BFD_RELOC_IA64_TPREL22: rtype = R_IA64_TPREL22; break; |
| 588 | case BFD_RELOC_IA64_TPREL64I: rtype = R_IA64_TPREL64I; break; |
| 589 | case BFD_RELOC_IA64_TPREL64MSB: rtype = R_IA64_TPREL64MSB; break; |
| 590 | case BFD_RELOC_IA64_TPREL64LSB: rtype = R_IA64_TPREL64LSB; break; |
| 591 | case BFD_RELOC_IA64_LTOFF_TPREL22: rtype = R_IA64_LTOFF_TPREL22; break; |
| 592 | |
| 593 | case BFD_RELOC_IA64_DTPMOD64MSB: rtype = R_IA64_DTPMOD64MSB; break; |
| 594 | case BFD_RELOC_IA64_DTPMOD64LSB: rtype = R_IA64_DTPMOD64LSB; break; |
| 595 | case BFD_RELOC_IA64_LTOFF_DTPMOD22: rtype = R_IA64_LTOFF_DTPMOD22; break; |
| 596 | |
| 597 | case BFD_RELOC_IA64_DTPREL14: rtype = R_IA64_DTPREL14; break; |
| 598 | case BFD_RELOC_IA64_DTPREL22: rtype = R_IA64_DTPREL22; break; |
| 599 | case BFD_RELOC_IA64_DTPREL64I: rtype = R_IA64_DTPREL64I; break; |
| 600 | case BFD_RELOC_IA64_DTPREL32MSB: rtype = R_IA64_DTPREL32MSB; break; |
| 601 | case BFD_RELOC_IA64_DTPREL32LSB: rtype = R_IA64_DTPREL32LSB; break; |
| 602 | case BFD_RELOC_IA64_DTPREL64MSB: rtype = R_IA64_DTPREL64MSB; break; |
| 603 | case BFD_RELOC_IA64_DTPREL64LSB: rtype = R_IA64_DTPREL64LSB; break; |
| 604 | case BFD_RELOC_IA64_LTOFF_DTPREL22: rtype = R_IA64_LTOFF_DTPREL22; break; |
| 605 | |
| 606 | default: return 0; |
| 607 | } |
| 608 | return lookup_howto (rtype); |
| 609 | } |
| 610 | |
| 611 | /* Given a ELF reloc, return the matching HOWTO structure. */ |
| 612 | |
| 613 | static void |
| 614 | elfNN_ia64_info_to_howto (abfd, bfd_reloc, elf_reloc) |
| 615 | bfd *abfd ATTRIBUTE_UNUSED; |
| 616 | arelent *bfd_reloc; |
| 617 | Elf_Internal_Rela *elf_reloc; |
| 618 | { |
| 619 | bfd_reloc->howto |
| 620 | = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc->r_info)); |
| 621 | } |
| 622 | \f |
| 623 | #define PLT_HEADER_SIZE (3 * 16) |
| 624 | #define PLT_MIN_ENTRY_SIZE (1 * 16) |
| 625 | #define PLT_FULL_ENTRY_SIZE (2 * 16) |
| 626 | #define PLT_RESERVED_WORDS 3 |
| 627 | |
| 628 | static const bfd_byte plt_header[PLT_HEADER_SIZE] = |
| 629 | { |
| 630 | 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */ |
| 631 | 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */ |
| 632 | 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */ |
| 633 | 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */ |
| 634 | 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */ |
| 635 | 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */ |
| 636 | 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */ |
| 637 | 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */ |
| 638 | 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */ |
| 639 | }; |
| 640 | |
| 641 | static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] = |
| 642 | { |
| 643 | 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */ |
| 644 | 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */ |
| 645 | 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */ |
| 646 | }; |
| 647 | |
| 648 | static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] = |
| 649 | { |
| 650 | 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */ |
| 651 | 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0, /* ld8 r16=[r15],8 */ |
| 652 | 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */ |
| 653 | 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */ |
| 654 | 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */ |
| 655 | 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */ |
| 656 | }; |
| 657 | |
| 658 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
| 659 | #define AIX_DYNAMIC_INTERPRETER "/usr/lib/ia64l64/libc.so.1" |
| 660 | #define DYNAMIC_INTERPRETER(abfd) \ |
| 661 | (elfNN_ia64_aix_vec (abfd->xvec) ? AIX_DYNAMIC_INTERPRETER : ELF_DYNAMIC_INTERPRETER) |
| 662 | |
| 663 | static const bfd_byte oor_brl[16] = |
| 664 | { |
| 665 | 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */ |
| 666 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */ |
| 667 | 0x00, 0x00, 0x00, 0xc0 |
| 668 | }; |
| 669 | \f |
| 670 | /* These functions do relaxation for IA-64 ELF. */ |
| 671 | |
| 672 | static bfd_boolean |
| 673 | elfNN_ia64_relax_section (abfd, sec, link_info, again) |
| 674 | bfd *abfd; |
| 675 | asection *sec; |
| 676 | struct bfd_link_info *link_info; |
| 677 | bfd_boolean *again; |
| 678 | { |
| 679 | struct one_fixup |
| 680 | { |
| 681 | struct one_fixup *next; |
| 682 | asection *tsec; |
| 683 | bfd_vma toff; |
| 684 | bfd_vma trampoff; |
| 685 | }; |
| 686 | |
| 687 | Elf_Internal_Shdr *symtab_hdr; |
| 688 | Elf_Internal_Rela *internal_relocs; |
| 689 | Elf_Internal_Rela *irel, *irelend; |
| 690 | bfd_byte *contents; |
| 691 | Elf_Internal_Sym *isymbuf = NULL; |
| 692 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 693 | struct one_fixup *fixups = NULL; |
| 694 | bfd_boolean changed_contents = FALSE; |
| 695 | bfd_boolean changed_relocs = FALSE; |
| 696 | bfd_boolean changed_got = FALSE; |
| 697 | bfd_vma gp = 0; |
| 698 | |
| 699 | /* Assume we're not going to change any sizes, and we'll only need |
| 700 | one pass. */ |
| 701 | *again = FALSE; |
| 702 | |
| 703 | /* Don't even try to relax for non-ELF outputs. */ |
| 704 | if (link_info->hash->creator->flavour != bfd_target_elf_flavour) |
| 705 | return FALSE; |
| 706 | |
| 707 | /* Nothing to do if there are no relocations. */ |
| 708 | if ((sec->flags & SEC_RELOC) == 0 |
| 709 | || sec->reloc_count == 0) |
| 710 | return TRUE; |
| 711 | |
| 712 | /* If this is the first time we have been called for this section, |
| 713 | initialize the cooked size. */ |
| 714 | if (sec->_cooked_size == 0) |
| 715 | sec->_cooked_size = sec->_raw_size; |
| 716 | |
| 717 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 718 | |
| 719 | /* Load the relocations for this section. */ |
| 720 | internal_relocs = (_bfd_elfNN_link_read_relocs |
| 721 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
| 722 | link_info->keep_memory)); |
| 723 | if (internal_relocs == NULL) |
| 724 | return FALSE; |
| 725 | |
| 726 | ia64_info = elfNN_ia64_hash_table (link_info); |
| 727 | irelend = internal_relocs + sec->reloc_count; |
| 728 | |
| 729 | /* Get the section contents. */ |
| 730 | if (elf_section_data (sec)->this_hdr.contents != NULL) |
| 731 | contents = elf_section_data (sec)->this_hdr.contents; |
| 732 | else |
| 733 | { |
| 734 | contents = (bfd_byte *) bfd_malloc (sec->_raw_size); |
| 735 | if (contents == NULL) |
| 736 | goto error_return; |
| 737 | |
| 738 | if (! bfd_get_section_contents (abfd, sec, contents, |
| 739 | (file_ptr) 0, sec->_raw_size)) |
| 740 | goto error_return; |
| 741 | } |
| 742 | |
| 743 | for (irel = internal_relocs; irel < irelend; irel++) |
| 744 | { |
| 745 | unsigned long r_type = ELFNN_R_TYPE (irel->r_info); |
| 746 | bfd_vma symaddr, reladdr, trampoff, toff, roff; |
| 747 | asection *tsec; |
| 748 | struct one_fixup *f; |
| 749 | bfd_size_type amt; |
| 750 | bfd_boolean is_branch; |
| 751 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 752 | |
| 753 | switch (r_type) |
| 754 | { |
| 755 | case R_IA64_PCREL21B: |
| 756 | case R_IA64_PCREL21BI: |
| 757 | case R_IA64_PCREL21M: |
| 758 | case R_IA64_PCREL21F: |
| 759 | is_branch = TRUE; |
| 760 | break; |
| 761 | |
| 762 | case R_IA64_LTOFF22X: |
| 763 | case R_IA64_LDXMOV: |
| 764 | is_branch = FALSE; |
| 765 | break; |
| 766 | |
| 767 | default: |
| 768 | continue; |
| 769 | } |
| 770 | |
| 771 | /* Get the value of the symbol referred to by the reloc. */ |
| 772 | if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
| 773 | { |
| 774 | /* A local symbol. */ |
| 775 | Elf_Internal_Sym *isym; |
| 776 | |
| 777 | /* Read this BFD's local symbols. */ |
| 778 | if (isymbuf == NULL) |
| 779 | { |
| 780 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
| 781 | if (isymbuf == NULL) |
| 782 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, |
| 783 | symtab_hdr->sh_info, 0, |
| 784 | NULL, NULL, NULL); |
| 785 | if (isymbuf == 0) |
| 786 | goto error_return; |
| 787 | } |
| 788 | |
| 789 | isym = isymbuf + ELF64_R_SYM (irel->r_info); |
| 790 | if (isym->st_shndx == SHN_UNDEF) |
| 791 | continue; /* We can't do anthing with undefined symbols. */ |
| 792 | else if (isym->st_shndx == SHN_ABS) |
| 793 | tsec = bfd_abs_section_ptr; |
| 794 | else if (isym->st_shndx == SHN_COMMON) |
| 795 | tsec = bfd_com_section_ptr; |
| 796 | else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON) |
| 797 | tsec = bfd_com_section_ptr; |
| 798 | else |
| 799 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 800 | |
| 801 | toff = isym->st_value; |
| 802 | dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE); |
| 803 | } |
| 804 | else |
| 805 | { |
| 806 | unsigned long indx; |
| 807 | struct elf_link_hash_entry *h; |
| 808 | |
| 809 | indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
| 810 | h = elf_sym_hashes (abfd)[indx]; |
| 811 | BFD_ASSERT (h != NULL); |
| 812 | |
| 813 | while (h->root.type == bfd_link_hash_indirect |
| 814 | || h->root.type == bfd_link_hash_warning) |
| 815 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 816 | |
| 817 | dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE); |
| 818 | |
| 819 | /* For branches to dynamic symbols, we're interested instead |
| 820 | in a branch to the PLT entry. */ |
| 821 | if (is_branch && dyn_i && dyn_i->want_plt2) |
| 822 | { |
| 823 | /* Internal branches shouldn't be sent to the PLT. |
| 824 | Leave this for now and we'll give an error later. */ |
| 825 | if (r_type != R_IA64_PCREL21B) |
| 826 | continue; |
| 827 | |
| 828 | tsec = ia64_info->plt_sec; |
| 829 | toff = dyn_i->plt2_offset; |
| 830 | BFD_ASSERT (irel->r_addend == 0); |
| 831 | } |
| 832 | |
| 833 | /* Can't do anything else with dynamic symbols. */ |
| 834 | else if (elfNN_ia64_dynamic_symbol_p (h, link_info)) |
| 835 | continue; |
| 836 | |
| 837 | else |
| 838 | { |
| 839 | /* We can't do anthing with undefined symbols. */ |
| 840 | if (h->root.type == bfd_link_hash_undefined |
| 841 | || h->root.type == bfd_link_hash_undefweak) |
| 842 | continue; |
| 843 | |
| 844 | tsec = h->root.u.def.section; |
| 845 | toff = h->root.u.def.value; |
| 846 | } |
| 847 | } |
| 848 | |
| 849 | if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE) |
| 850 | toff = _bfd_merged_section_offset (abfd, &tsec, |
| 851 | elf_section_data (tsec)->sec_info, |
| 852 | toff + irel->r_addend, |
| 853 | (bfd_vma) 0); |
| 854 | else |
| 855 | toff += irel->r_addend; |
| 856 | |
| 857 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; |
| 858 | |
| 859 | roff = irel->r_offset; |
| 860 | |
| 861 | if (is_branch) |
| 862 | { |
| 863 | reladdr = (sec->output_section->vma |
| 864 | + sec->output_offset |
| 865 | + roff) & (bfd_vma) -4; |
| 866 | |
| 867 | /* If the branch is in range, no need to do anything. */ |
| 868 | if ((bfd_signed_vma) (symaddr - reladdr) >= -0x1000000 |
| 869 | && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0) |
| 870 | continue; |
| 871 | |
| 872 | /* If the branch and target are in the same section, you've |
| 873 | got one honking big section and we can't help you. You'll |
| 874 | get an error message later. */ |
| 875 | if (tsec == sec) |
| 876 | continue; |
| 877 | |
| 878 | /* Look for an existing fixup to this address. */ |
| 879 | for (f = fixups; f ; f = f->next) |
| 880 | if (f->tsec == tsec && f->toff == toff) |
| 881 | break; |
| 882 | |
| 883 | if (f == NULL) |
| 884 | { |
| 885 | /* Two alternatives: If it's a branch to a PLT entry, we can |
| 886 | make a copy of the FULL_PLT entry. Otherwise, we'll have |
| 887 | to use a `brl' insn to get where we're going. */ |
| 888 | |
| 889 | size_t size; |
| 890 | |
| 891 | if (tsec == ia64_info->plt_sec) |
| 892 | size = sizeof (plt_full_entry); |
| 893 | else |
| 894 | { |
| 895 | size = sizeof (oor_brl); |
| 896 | } |
| 897 | |
| 898 | /* Resize the current section to make room for the new branch. */ |
| 899 | trampoff = (sec->_cooked_size + 15) & (bfd_vma) -16; |
| 900 | amt = trampoff + size; |
| 901 | contents = (bfd_byte *) bfd_realloc (contents, amt); |
| 902 | if (contents == NULL) |
| 903 | goto error_return; |
| 904 | sec->_cooked_size = amt; |
| 905 | |
| 906 | if (tsec == ia64_info->plt_sec) |
| 907 | { |
| 908 | memcpy (contents + trampoff, plt_full_entry, size); |
| 909 | |
| 910 | /* Hijack the old relocation for use as the PLTOFF reloc. */ |
| 911 | irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info), |
| 912 | R_IA64_PLTOFF22); |
| 913 | irel->r_offset = trampoff; |
| 914 | } |
| 915 | else |
| 916 | { |
| 917 | memcpy (contents + trampoff, oor_brl, size); |
| 918 | irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info), |
| 919 | R_IA64_PCREL60B); |
| 920 | irel->r_offset = trampoff + 2; |
| 921 | } |
| 922 | |
| 923 | /* Record the fixup so we don't do it again this section. */ |
| 924 | f = (struct one_fixup *) |
| 925 | bfd_malloc ((bfd_size_type) sizeof (*f)); |
| 926 | f->next = fixups; |
| 927 | f->tsec = tsec; |
| 928 | f->toff = toff; |
| 929 | f->trampoff = trampoff; |
| 930 | fixups = f; |
| 931 | } |
| 932 | else |
| 933 | { |
| 934 | /* Nop out the reloc, since we're finalizing things here. */ |
| 935 | irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE); |
| 936 | } |
| 937 | |
| 938 | /* Fix up the existing branch to hit the trampoline. Hope like |
| 939 | hell this doesn't overflow too. */ |
| 940 | if (elfNN_ia64_install_value (abfd, contents + roff, |
| 941 | f->trampoff - (roff & (bfd_vma) -4), |
| 942 | r_type) != bfd_reloc_ok) |
| 943 | goto error_return; |
| 944 | |
| 945 | changed_contents = TRUE; |
| 946 | changed_relocs = TRUE; |
| 947 | } |
| 948 | else |
| 949 | { |
| 950 | /* Fetch the gp. */ |
| 951 | if (gp == 0) |
| 952 | { |
| 953 | bfd *obfd = sec->output_section->owner; |
| 954 | gp = _bfd_get_gp_value (obfd); |
| 955 | if (gp == 0) |
| 956 | { |
| 957 | if (!elfNN_ia64_choose_gp (obfd, link_info)) |
| 958 | goto error_return; |
| 959 | gp = _bfd_get_gp_value (obfd); |
| 960 | } |
| 961 | } |
| 962 | |
| 963 | /* If the data is out of range, do nothing. */ |
| 964 | if ((bfd_signed_vma) (symaddr - gp) >= 0x200000 |
| 965 | ||(bfd_signed_vma) (symaddr - gp) < -0x200000) |
| 966 | continue; |
| 967 | |
| 968 | if (r_type == R_IA64_LTOFF22X) |
| 969 | { |
| 970 | irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info), |
| 971 | R_IA64_GPREL22); |
| 972 | changed_relocs = TRUE; |
| 973 | if (dyn_i->want_gotx) |
| 974 | { |
| 975 | dyn_i->want_gotx = 0; |
| 976 | changed_got |= !dyn_i->want_got; |
| 977 | } |
| 978 | } |
| 979 | else |
| 980 | { |
| 981 | elfNN_ia64_relax_ldxmov (abfd, contents, roff); |
| 982 | irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE); |
| 983 | changed_contents = TRUE; |
| 984 | changed_relocs = TRUE; |
| 985 | } |
| 986 | } |
| 987 | } |
| 988 | |
| 989 | /* ??? If we created fixups, this may push the code segment large |
| 990 | enough that the data segment moves, which will change the GP. |
| 991 | Reset the GP so that we re-calculate next round. We need to |
| 992 | do this at the _beginning_ of the next round; now will not do. */ |
| 993 | |
| 994 | /* Clean up and go home. */ |
| 995 | while (fixups) |
| 996 | { |
| 997 | struct one_fixup *f = fixups; |
| 998 | fixups = fixups->next; |
| 999 | free (f); |
| 1000 | } |
| 1001 | |
| 1002 | if (isymbuf != NULL |
| 1003 | && symtab_hdr->contents != (unsigned char *) isymbuf) |
| 1004 | { |
| 1005 | if (! link_info->keep_memory) |
| 1006 | free (isymbuf); |
| 1007 | else |
| 1008 | { |
| 1009 | /* Cache the symbols for elf_link_input_bfd. */ |
| 1010 | symtab_hdr->contents = (unsigned char *) isymbuf; |
| 1011 | } |
| 1012 | } |
| 1013 | |
| 1014 | if (contents != NULL |
| 1015 | && elf_section_data (sec)->this_hdr.contents != contents) |
| 1016 | { |
| 1017 | if (!changed_contents && !link_info->keep_memory) |
| 1018 | free (contents); |
| 1019 | else |
| 1020 | { |
| 1021 | /* Cache the section contents for elf_link_input_bfd. */ |
| 1022 | elf_section_data (sec)->this_hdr.contents = contents; |
| 1023 | } |
| 1024 | } |
| 1025 | |
| 1026 | if (elf_section_data (sec)->relocs != internal_relocs) |
| 1027 | { |
| 1028 | if (!changed_relocs) |
| 1029 | free (internal_relocs); |
| 1030 | else |
| 1031 | elf_section_data (sec)->relocs = internal_relocs; |
| 1032 | } |
| 1033 | |
| 1034 | if (changed_got) |
| 1035 | { |
| 1036 | struct elfNN_ia64_allocate_data data; |
| 1037 | data.info = link_info; |
| 1038 | data.ofs = 0; |
| 1039 | ia64_info->self_dtpmod_offset = (bfd_vma) -1; |
| 1040 | |
| 1041 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data); |
| 1042 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data); |
| 1043 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data); |
| 1044 | ia64_info->got_sec->_raw_size = data.ofs; |
| 1045 | ia64_info->got_sec->_cooked_size = data.ofs; |
| 1046 | |
| 1047 | /* ??? Resize .rela.got too. */ |
| 1048 | } |
| 1049 | |
| 1050 | *again = changed_contents || changed_relocs; |
| 1051 | return TRUE; |
| 1052 | |
| 1053 | error_return: |
| 1054 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) |
| 1055 | free (isymbuf); |
| 1056 | if (contents != NULL |
| 1057 | && elf_section_data (sec)->this_hdr.contents != contents) |
| 1058 | free (contents); |
| 1059 | if (internal_relocs != NULL |
| 1060 | && elf_section_data (sec)->relocs != internal_relocs) |
| 1061 | free (internal_relocs); |
| 1062 | return FALSE; |
| 1063 | } |
| 1064 | |
| 1065 | static void |
| 1066 | elfNN_ia64_relax_ldxmov (abfd, contents, off) |
| 1067 | bfd *abfd; |
| 1068 | bfd_byte *contents; |
| 1069 | bfd_vma off; |
| 1070 | { |
| 1071 | int shift, r1, r3; |
| 1072 | bfd_vma dword, insn; |
| 1073 | |
| 1074 | switch ((int)off & 0x3) |
| 1075 | { |
| 1076 | case 0: shift = 5; break; |
| 1077 | case 1: shift = 14; off += 3; break; |
| 1078 | case 2: shift = 23; off += 6; break; |
| 1079 | case 3: |
| 1080 | abort (); |
| 1081 | } |
| 1082 | |
| 1083 | dword = bfd_get_64 (abfd, contents + off); |
| 1084 | insn = (dword >> shift) & 0x1ffffffffffLL; |
| 1085 | |
| 1086 | r1 = (insn >> 6) & 127; |
| 1087 | r3 = (insn >> 20) & 127; |
| 1088 | if (r1 == r3) |
| 1089 | insn = 0x8000000; /* nop */ |
| 1090 | else |
| 1091 | insn = (insn & 0x7f01fff) | 0x10800000000LL; /* (qp) mov r1 = r3 */ |
| 1092 | |
| 1093 | dword &= ~(0x1ffffffffffLL << shift); |
| 1094 | dword |= (insn << shift); |
| 1095 | bfd_put_64 (abfd, dword, contents + off); |
| 1096 | } |
| 1097 | \f |
| 1098 | /* Return TRUE if NAME is an unwind table section name. */ |
| 1099 | |
| 1100 | static inline bfd_boolean |
| 1101 | is_unwind_section_name (abfd, name) |
| 1102 | bfd *abfd; |
| 1103 | const char *name; |
| 1104 | { |
| 1105 | size_t len1, len2, len3; |
| 1106 | |
| 1107 | if (elfNN_ia64_hpux_vec (abfd->xvec) |
| 1108 | && !strcmp (name, ELF_STRING_ia64_unwind_hdr)) |
| 1109 | return FALSE; |
| 1110 | |
| 1111 | len1 = sizeof (ELF_STRING_ia64_unwind) - 1; |
| 1112 | len2 = sizeof (ELF_STRING_ia64_unwind_info) - 1; |
| 1113 | len3 = sizeof (ELF_STRING_ia64_unwind_once) - 1; |
| 1114 | return ((strncmp (name, ELF_STRING_ia64_unwind, len1) == 0 |
| 1115 | && strncmp (name, ELF_STRING_ia64_unwind_info, len2) != 0) |
| 1116 | || strncmp (name, ELF_STRING_ia64_unwind_once, len3) == 0); |
| 1117 | } |
| 1118 | |
| 1119 | /* Handle an IA-64 specific section when reading an object file. This |
| 1120 | is called when elfcode.h finds a section with an unknown type. */ |
| 1121 | |
| 1122 | static bfd_boolean |
| 1123 | elfNN_ia64_section_from_shdr (abfd, hdr, name) |
| 1124 | bfd *abfd; |
| 1125 | Elf_Internal_Shdr *hdr; |
| 1126 | const char *name; |
| 1127 | { |
| 1128 | asection *newsect; |
| 1129 | |
| 1130 | /* There ought to be a place to keep ELF backend specific flags, but |
| 1131 | at the moment there isn't one. We just keep track of the |
| 1132 | sections by their name, instead. Fortunately, the ABI gives |
| 1133 | suggested names for all the MIPS specific sections, so we will |
| 1134 | probably get away with this. */ |
| 1135 | switch (hdr->sh_type) |
| 1136 | { |
| 1137 | case SHT_IA_64_UNWIND: |
| 1138 | case SHT_IA_64_HP_OPT_ANOT: |
| 1139 | break; |
| 1140 | |
| 1141 | case SHT_IA_64_EXT: |
| 1142 | if (strcmp (name, ELF_STRING_ia64_archext) != 0) |
| 1143 | return FALSE; |
| 1144 | break; |
| 1145 | |
| 1146 | default: |
| 1147 | return FALSE; |
| 1148 | } |
| 1149 | |
| 1150 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) |
| 1151 | return FALSE; |
| 1152 | newsect = hdr->bfd_section; |
| 1153 | |
| 1154 | return TRUE; |
| 1155 | } |
| 1156 | |
| 1157 | /* Convert IA-64 specific section flags to bfd internal section flags. */ |
| 1158 | |
| 1159 | /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV |
| 1160 | flag. */ |
| 1161 | |
| 1162 | static bfd_boolean |
| 1163 | elfNN_ia64_section_flags (flags, hdr) |
| 1164 | flagword *flags; |
| 1165 | Elf_Internal_Shdr *hdr; |
| 1166 | { |
| 1167 | if (hdr->sh_flags & SHF_IA_64_SHORT) |
| 1168 | *flags |= SEC_SMALL_DATA; |
| 1169 | |
| 1170 | return TRUE; |
| 1171 | } |
| 1172 | |
| 1173 | /* Set the correct type for an IA-64 ELF section. We do this by the |
| 1174 | section name, which is a hack, but ought to work. */ |
| 1175 | |
| 1176 | static bfd_boolean |
| 1177 | elfNN_ia64_fake_sections (abfd, hdr, sec) |
| 1178 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1179 | Elf_Internal_Shdr *hdr; |
| 1180 | asection *sec; |
| 1181 | { |
| 1182 | register const char *name; |
| 1183 | |
| 1184 | name = bfd_get_section_name (abfd, sec); |
| 1185 | |
| 1186 | if (is_unwind_section_name (abfd, name)) |
| 1187 | { |
| 1188 | /* We don't have the sections numbered at this point, so sh_info |
| 1189 | is set later, in elfNN_ia64_final_write_processing. */ |
| 1190 | hdr->sh_type = SHT_IA_64_UNWIND; |
| 1191 | hdr->sh_flags |= SHF_LINK_ORDER; |
| 1192 | } |
| 1193 | else if (strcmp (name, ELF_STRING_ia64_archext) == 0) |
| 1194 | hdr->sh_type = SHT_IA_64_EXT; |
| 1195 | else if (strcmp (name, ".HP.opt_annot") == 0) |
| 1196 | hdr->sh_type = SHT_IA_64_HP_OPT_ANOT; |
| 1197 | else if (strcmp (name, ".reloc") == 0) |
| 1198 | /* This is an ugly, but unfortunately necessary hack that is |
| 1199 | needed when producing EFI binaries on IA-64. It tells |
| 1200 | elf.c:elf_fake_sections() not to consider ".reloc" as a section |
| 1201 | containing ELF relocation info. We need this hack in order to |
| 1202 | be able to generate ELF binaries that can be translated into |
| 1203 | EFI applications (which are essentially COFF objects). Those |
| 1204 | files contain a COFF ".reloc" section inside an ELFNN object, |
| 1205 | which would normally cause BFD to segfault because it would |
| 1206 | attempt to interpret this section as containing relocation |
| 1207 | entries for section "oc". With this hack enabled, ".reloc" |
| 1208 | will be treated as a normal data section, which will avoid the |
| 1209 | segfault. However, you won't be able to create an ELFNN binary |
| 1210 | with a section named "oc" that needs relocations, but that's |
| 1211 | the kind of ugly side-effects you get when detecting section |
| 1212 | types based on their names... In practice, this limitation is |
| 1213 | unlikely to bite. */ |
| 1214 | hdr->sh_type = SHT_PROGBITS; |
| 1215 | |
| 1216 | if (sec->flags & SEC_SMALL_DATA) |
| 1217 | hdr->sh_flags |= SHF_IA_64_SHORT; |
| 1218 | |
| 1219 | return TRUE; |
| 1220 | } |
| 1221 | |
| 1222 | /* The final processing done just before writing out an IA-64 ELF |
| 1223 | object file. */ |
| 1224 | |
| 1225 | static void |
| 1226 | elfNN_ia64_final_write_processing (abfd, linker) |
| 1227 | bfd *abfd; |
| 1228 | bfd_boolean linker ATTRIBUTE_UNUSED; |
| 1229 | { |
| 1230 | Elf_Internal_Shdr *hdr; |
| 1231 | const char *sname; |
| 1232 | asection *text_sect, *s; |
| 1233 | size_t len; |
| 1234 | |
| 1235 | for (s = abfd->sections; s; s = s->next) |
| 1236 | { |
| 1237 | hdr = &elf_section_data (s)->this_hdr; |
| 1238 | switch (hdr->sh_type) |
| 1239 | { |
| 1240 | case SHT_IA_64_UNWIND: |
| 1241 | /* See comments in gas/config/tc-ia64.c:dot_endp on why we |
| 1242 | have to do this. */ |
| 1243 | sname = bfd_get_section_name (abfd, s); |
| 1244 | len = sizeof (ELF_STRING_ia64_unwind) - 1; |
| 1245 | if (sname && strncmp (sname, ELF_STRING_ia64_unwind, len) == 0) |
| 1246 | { |
| 1247 | sname += len; |
| 1248 | |
| 1249 | if (sname[0] == '\0') |
| 1250 | /* .IA_64.unwind -> .text */ |
| 1251 | text_sect = bfd_get_section_by_name (abfd, ".text"); |
| 1252 | else |
| 1253 | /* .IA_64.unwindFOO -> FOO */ |
| 1254 | text_sect = bfd_get_section_by_name (abfd, sname); |
| 1255 | } |
| 1256 | else if (sname |
| 1257 | && (len = sizeof (ELF_STRING_ia64_unwind_once) - 1, |
| 1258 | strncmp (sname, ELF_STRING_ia64_unwind_once, len)) == 0) |
| 1259 | { |
| 1260 | /* .gnu.linkonce.ia64unw.FOO -> .gnu.linkonce.t.FOO */ |
| 1261 | size_t len2 = sizeof (".gnu.linkonce.t.") - 1; |
| 1262 | char *once_name = bfd_malloc (len2 + strlen (sname + len) + 1); |
| 1263 | |
| 1264 | if (once_name != NULL) |
| 1265 | { |
| 1266 | memcpy (once_name, ".gnu.linkonce.t.", len2); |
| 1267 | strcpy (once_name + len2, sname + len); |
| 1268 | text_sect = bfd_get_section_by_name (abfd, once_name); |
| 1269 | free (once_name); |
| 1270 | } |
| 1271 | else |
| 1272 | /* Should only happen if we run out of memory, in |
| 1273 | which case we're probably toast anyway. Try to |
| 1274 | cope by finding the section the slow way. */ |
| 1275 | for (text_sect = abfd->sections; |
| 1276 | text_sect != NULL; |
| 1277 | text_sect = text_sect->next) |
| 1278 | { |
| 1279 | if (strncmp (bfd_section_name (abfd, text_sect), |
| 1280 | ".gnu.linkonce.t.", len2) == 0 |
| 1281 | && strcmp (bfd_section_name (abfd, text_sect) + len2, |
| 1282 | sname + len) == 0) |
| 1283 | break; |
| 1284 | } |
| 1285 | } |
| 1286 | else |
| 1287 | /* last resort: fall back on .text */ |
| 1288 | text_sect = bfd_get_section_by_name (abfd, ".text"); |
| 1289 | |
| 1290 | if (text_sect) |
| 1291 | { |
| 1292 | /* The IA-64 processor-specific ABI requires setting |
| 1293 | sh_link to the unwind section, whereas HP-UX requires |
| 1294 | sh_info to do so. For maximum compatibility, we'll |
| 1295 | set both for now... */ |
| 1296 | hdr->sh_link = elf_section_data (text_sect)->this_idx; |
| 1297 | hdr->sh_info = elf_section_data (text_sect)->this_idx; |
| 1298 | } |
| 1299 | break; |
| 1300 | } |
| 1301 | } |
| 1302 | |
| 1303 | if (! elf_flags_init (abfd)) |
| 1304 | { |
| 1305 | unsigned long flags = 0; |
| 1306 | |
| 1307 | if (abfd->xvec->byteorder == BFD_ENDIAN_BIG) |
| 1308 | flags |= EF_IA_64_BE; |
| 1309 | if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64) |
| 1310 | flags |= EF_IA_64_ABI64; |
| 1311 | |
| 1312 | elf_elfheader(abfd)->e_flags = flags; |
| 1313 | elf_flags_init (abfd) = TRUE; |
| 1314 | } |
| 1315 | } |
| 1316 | |
| 1317 | /* Hook called by the linker routine which adds symbols from an object |
| 1318 | file. We use it to put .comm items in .sbss, and not .bss. */ |
| 1319 | |
| 1320 | static bfd_boolean |
| 1321 | elfNN_ia64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
| 1322 | bfd *abfd; |
| 1323 | struct bfd_link_info *info; |
| 1324 | const Elf_Internal_Sym *sym; |
| 1325 | const char **namep ATTRIBUTE_UNUSED; |
| 1326 | flagword *flagsp ATTRIBUTE_UNUSED; |
| 1327 | asection **secp; |
| 1328 | bfd_vma *valp; |
| 1329 | { |
| 1330 | if (sym->st_shndx == SHN_COMMON |
| 1331 | && !info->relocateable |
| 1332 | && sym->st_size <= elf_gp_size (abfd)) |
| 1333 | { |
| 1334 | /* Common symbols less than or equal to -G nn bytes are |
| 1335 | automatically put into .sbss. */ |
| 1336 | |
| 1337 | asection *scomm = bfd_get_section_by_name (abfd, ".scommon"); |
| 1338 | |
| 1339 | if (scomm == NULL) |
| 1340 | { |
| 1341 | scomm = bfd_make_section (abfd, ".scommon"); |
| 1342 | if (scomm == NULL |
| 1343 | || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC |
| 1344 | | SEC_IS_COMMON |
| 1345 | | SEC_LINKER_CREATED))) |
| 1346 | return FALSE; |
| 1347 | } |
| 1348 | |
| 1349 | *secp = scomm; |
| 1350 | *valp = sym->st_size; |
| 1351 | } |
| 1352 | |
| 1353 | return TRUE; |
| 1354 | } |
| 1355 | |
| 1356 | static bfd_boolean |
| 1357 | elfNN_ia64_aix_vec (const bfd_target *vec) |
| 1358 | { |
| 1359 | extern const bfd_target bfd_elfNN_ia64_aix_little_vec; |
| 1360 | extern const bfd_target bfd_elfNN_ia64_aix_big_vec; |
| 1361 | |
| 1362 | return (/**/vec == & bfd_elfNN_ia64_aix_little_vec |
| 1363 | || vec == & bfd_elfNN_ia64_aix_big_vec); |
| 1364 | } |
| 1365 | |
| 1366 | /* Hook called by the linker routine which adds symbols from an object |
| 1367 | file. We use it to handle OS-specific symbols. */ |
| 1368 | |
| 1369 | static bfd_boolean |
| 1370 | elfNN_ia64_aix_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
| 1371 | bfd *abfd; |
| 1372 | struct bfd_link_info *info; |
| 1373 | const Elf_Internal_Sym *sym; |
| 1374 | const char **namep; |
| 1375 | flagword *flagsp; |
| 1376 | asection **secp; |
| 1377 | bfd_vma *valp; |
| 1378 | { |
| 1379 | if (strcmp (*namep, "__GLOB_DATA_PTR") == 0) |
| 1380 | { |
| 1381 | /* Define __GLOB_DATA_PTR when it is encountered. This is expected to |
| 1382 | be a linker-defined symbol by the Aix C runtime startup code. IBM sez |
| 1383 | no one else should use it b/c it is undocumented. */ |
| 1384 | struct elf_link_hash_entry *h; |
| 1385 | |
| 1386 | h = elf_link_hash_lookup (elf_hash_table (info), *namep, |
| 1387 | FALSE, FALSE, FALSE); |
| 1388 | if (h == NULL) |
| 1389 | { |
| 1390 | struct elf_backend_data *bed; |
| 1391 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 1392 | struct bfd_link_hash_entry *bh = NULL; |
| 1393 | |
| 1394 | bed = get_elf_backend_data (abfd); |
| 1395 | ia64_info = elfNN_ia64_hash_table (info); |
| 1396 | |
| 1397 | if (!(_bfd_generic_link_add_one_symbol |
| 1398 | (info, abfd, *namep, BSF_GLOBAL, |
| 1399 | bfd_get_section_by_name (abfd, ".bss"), |
| 1400 | bed->got_symbol_offset, (const char *) NULL, FALSE, |
| 1401 | bed->collect, &bh))) |
| 1402 | return FALSE; |
| 1403 | |
| 1404 | h = (struct elf_link_hash_entry *) bh; |
| 1405 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; |
| 1406 | h->type = STT_OBJECT; |
| 1407 | |
| 1408 | if (! _bfd_elf_link_record_dynamic_symbol (info, h)) |
| 1409 | return FALSE; |
| 1410 | } |
| 1411 | |
| 1412 | return TRUE; |
| 1413 | } |
| 1414 | else if (sym->st_shndx == SHN_LOOS) |
| 1415 | { |
| 1416 | unsigned int i; |
| 1417 | |
| 1418 | /* SHN_AIX_SYSCALL: Treat this as any other symbol. The special symbol |
| 1419 | is only relevant when compiling code for extended system calls. |
| 1420 | Replace the "special" section with .text, if possible. |
| 1421 | Note that these symbols are always assumed to be in .text. */ |
| 1422 | for (i = 1; i < elf_numsections (abfd); i++) |
| 1423 | { |
| 1424 | asection * sec = bfd_section_from_elf_index (abfd, i); |
| 1425 | |
| 1426 | if (sec && strcmp (sec->name, ".text") == 0) |
| 1427 | { |
| 1428 | *secp = sec; |
| 1429 | break; |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | if (*secp == NULL) |
| 1434 | *secp = bfd_abs_section_ptr; |
| 1435 | |
| 1436 | *valp = sym->st_size; |
| 1437 | |
| 1438 | return TRUE; |
| 1439 | } |
| 1440 | else |
| 1441 | { |
| 1442 | return elfNN_ia64_add_symbol_hook (abfd, info, sym, |
| 1443 | namep, flagsp, secp, valp); |
| 1444 | } |
| 1445 | } |
| 1446 | |
| 1447 | bfd_boolean |
| 1448 | elfNN_ia64_aix_link_add_symbols (abfd, info) |
| 1449 | bfd *abfd; |
| 1450 | struct bfd_link_info *info; |
| 1451 | { |
| 1452 | /* Make sure dynamic sections are always created. */ |
| 1453 | if (! elf_hash_table (info)->dynamic_sections_created |
| 1454 | && abfd->xvec == info->hash->creator) |
| 1455 | { |
| 1456 | if (! bfd_elfNN_link_create_dynamic_sections (abfd, info)) |
| 1457 | return FALSE; |
| 1458 | } |
| 1459 | |
| 1460 | /* Now do the standard call. */ |
| 1461 | return bfd_elfNN_bfd_link_add_symbols (abfd, info); |
| 1462 | } |
| 1463 | |
| 1464 | /* Return the number of additional phdrs we will need. */ |
| 1465 | |
| 1466 | static int |
| 1467 | elfNN_ia64_additional_program_headers (abfd) |
| 1468 | bfd *abfd; |
| 1469 | { |
| 1470 | asection *s; |
| 1471 | int ret = 0; |
| 1472 | |
| 1473 | /* See if we need a PT_IA_64_ARCHEXT segment. */ |
| 1474 | s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext); |
| 1475 | if (s && (s->flags & SEC_LOAD)) |
| 1476 | ++ret; |
| 1477 | |
| 1478 | /* Count how many PT_IA_64_UNWIND segments we need. */ |
| 1479 | for (s = abfd->sections; s; s = s->next) |
| 1480 | if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD)) |
| 1481 | ++ret; |
| 1482 | |
| 1483 | return ret; |
| 1484 | } |
| 1485 | |
| 1486 | static bfd_boolean |
| 1487 | elfNN_ia64_modify_segment_map (abfd) |
| 1488 | bfd *abfd; |
| 1489 | { |
| 1490 | struct elf_segment_map *m, **pm; |
| 1491 | Elf_Internal_Shdr *hdr; |
| 1492 | asection *s; |
| 1493 | |
| 1494 | /* If we need a PT_IA_64_ARCHEXT segment, it must come before |
| 1495 | all PT_LOAD segments. */ |
| 1496 | s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext); |
| 1497 | if (s && (s->flags & SEC_LOAD)) |
| 1498 | { |
| 1499 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
| 1500 | if (m->p_type == PT_IA_64_ARCHEXT) |
| 1501 | break; |
| 1502 | if (m == NULL) |
| 1503 | { |
| 1504 | m = ((struct elf_segment_map *) |
| 1505 | bfd_zalloc (abfd, (bfd_size_type) sizeof *m)); |
| 1506 | if (m == NULL) |
| 1507 | return FALSE; |
| 1508 | |
| 1509 | m->p_type = PT_IA_64_ARCHEXT; |
| 1510 | m->count = 1; |
| 1511 | m->sections[0] = s; |
| 1512 | |
| 1513 | /* We want to put it after the PHDR and INTERP segments. */ |
| 1514 | pm = &elf_tdata (abfd)->segment_map; |
| 1515 | while (*pm != NULL |
| 1516 | && ((*pm)->p_type == PT_PHDR |
| 1517 | || (*pm)->p_type == PT_INTERP)) |
| 1518 | pm = &(*pm)->next; |
| 1519 | |
| 1520 | m->next = *pm; |
| 1521 | *pm = m; |
| 1522 | } |
| 1523 | } |
| 1524 | |
| 1525 | /* Install PT_IA_64_UNWIND segments, if needed. */ |
| 1526 | for (s = abfd->sections; s; s = s->next) |
| 1527 | { |
| 1528 | hdr = &elf_section_data (s)->this_hdr; |
| 1529 | if (hdr->sh_type != SHT_IA_64_UNWIND) |
| 1530 | continue; |
| 1531 | |
| 1532 | if (s && (s->flags & SEC_LOAD)) |
| 1533 | { |
| 1534 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
| 1535 | if (m->p_type == PT_IA_64_UNWIND) |
| 1536 | { |
| 1537 | int i; |
| 1538 | |
| 1539 | /* Look through all sections in the unwind segment |
| 1540 | for a match since there may be multiple sections |
| 1541 | to a segment. */ |
| 1542 | for (i = m->count - 1; i >= 0; --i) |
| 1543 | if (m->sections[i] == s) |
| 1544 | break; |
| 1545 | |
| 1546 | if (i >= 0) |
| 1547 | break; |
| 1548 | } |
| 1549 | |
| 1550 | if (m == NULL) |
| 1551 | { |
| 1552 | m = ((struct elf_segment_map *) |
| 1553 | bfd_zalloc (abfd, (bfd_size_type) sizeof *m)); |
| 1554 | if (m == NULL) |
| 1555 | return FALSE; |
| 1556 | |
| 1557 | m->p_type = PT_IA_64_UNWIND; |
| 1558 | m->count = 1; |
| 1559 | m->sections[0] = s; |
| 1560 | m->next = NULL; |
| 1561 | |
| 1562 | /* We want to put it last. */ |
| 1563 | pm = &elf_tdata (abfd)->segment_map; |
| 1564 | while (*pm != NULL) |
| 1565 | pm = &(*pm)->next; |
| 1566 | *pm = m; |
| 1567 | } |
| 1568 | } |
| 1569 | } |
| 1570 | |
| 1571 | /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of |
| 1572 | the input sections for each output section in the segment and testing |
| 1573 | for SHF_IA_64_NORECOV on each. */ |
| 1574 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
| 1575 | if (m->p_type == PT_LOAD) |
| 1576 | { |
| 1577 | int i; |
| 1578 | for (i = m->count - 1; i >= 0; --i) |
| 1579 | { |
| 1580 | struct bfd_link_order *order = m->sections[i]->link_order_head; |
| 1581 | while (order) |
| 1582 | { |
| 1583 | if (order->type == bfd_indirect_link_order) |
| 1584 | { |
| 1585 | asection *is = order->u.indirect.section; |
| 1586 | bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags; |
| 1587 | if (flags & SHF_IA_64_NORECOV) |
| 1588 | { |
| 1589 | m->p_flags |= PF_IA_64_NORECOV; |
| 1590 | goto found; |
| 1591 | } |
| 1592 | } |
| 1593 | order = order->next; |
| 1594 | } |
| 1595 | } |
| 1596 | found:; |
| 1597 | } |
| 1598 | |
| 1599 | return TRUE; |
| 1600 | } |
| 1601 | |
| 1602 | /* According to the Tahoe assembler spec, all labels starting with a |
| 1603 | '.' are local. */ |
| 1604 | |
| 1605 | static bfd_boolean |
| 1606 | elfNN_ia64_is_local_label_name (abfd, name) |
| 1607 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1608 | const char *name; |
| 1609 | { |
| 1610 | return name[0] == '.'; |
| 1611 | } |
| 1612 | |
| 1613 | /* Should we do dynamic things to this symbol? */ |
| 1614 | |
| 1615 | static bfd_boolean |
| 1616 | elfNN_ia64_dynamic_symbol_p (h, info) |
| 1617 | struct elf_link_hash_entry *h; |
| 1618 | struct bfd_link_info *info; |
| 1619 | { |
| 1620 | if (h == NULL) |
| 1621 | return FALSE; |
| 1622 | |
| 1623 | while (h->root.type == bfd_link_hash_indirect |
| 1624 | || h->root.type == bfd_link_hash_warning) |
| 1625 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 1626 | |
| 1627 | if (h->dynindx == -1) |
| 1628 | return FALSE; |
| 1629 | switch (ELF_ST_VISIBILITY (h->other)) |
| 1630 | { |
| 1631 | case STV_INTERNAL: |
| 1632 | case STV_HIDDEN: |
| 1633 | return FALSE; |
| 1634 | default: |
| 1635 | break; |
| 1636 | } |
| 1637 | |
| 1638 | if (h->root.type == bfd_link_hash_undefweak |
| 1639 | || h->root.type == bfd_link_hash_defweak) |
| 1640 | return TRUE; |
| 1641 | |
| 1642 | if ((info->shared && (!info->symbolic || info->allow_shlib_undefined)) |
| 1643 | || ((h->elf_link_hash_flags |
| 1644 | & (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)) |
| 1645 | == (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR))) |
| 1646 | return TRUE; |
| 1647 | |
| 1648 | return FALSE; |
| 1649 | } |
| 1650 | \f |
| 1651 | static bfd_boolean |
| 1652 | elfNN_ia64_local_hash_table_init (ht, abfd, new) |
| 1653 | struct elfNN_ia64_local_hash_table *ht; |
| 1654 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1655 | new_hash_entry_func new; |
| 1656 | { |
| 1657 | memset (ht, 0, sizeof (*ht)); |
| 1658 | return bfd_hash_table_init (&ht->root, new); |
| 1659 | } |
| 1660 | |
| 1661 | static struct bfd_hash_entry* |
| 1662 | elfNN_ia64_new_loc_hash_entry (entry, table, string) |
| 1663 | struct bfd_hash_entry *entry; |
| 1664 | struct bfd_hash_table *table; |
| 1665 | const char *string; |
| 1666 | { |
| 1667 | struct elfNN_ia64_local_hash_entry *ret; |
| 1668 | ret = (struct elfNN_ia64_local_hash_entry *) entry; |
| 1669 | |
| 1670 | /* Allocate the structure if it has not already been allocated by a |
| 1671 | subclass. */ |
| 1672 | if (!ret) |
| 1673 | ret = bfd_hash_allocate (table, sizeof (*ret)); |
| 1674 | |
| 1675 | if (!ret) |
| 1676 | return 0; |
| 1677 | |
| 1678 | /* Initialize our local data. All zeros, and definitely easier |
| 1679 | than setting a handful of bit fields. */ |
| 1680 | memset (ret, 0, sizeof (*ret)); |
| 1681 | |
| 1682 | /* Call the allocation method of the superclass. */ |
| 1683 | ret = ((struct elfNN_ia64_local_hash_entry *) |
| 1684 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); |
| 1685 | |
| 1686 | return (struct bfd_hash_entry *) ret; |
| 1687 | } |
| 1688 | |
| 1689 | static struct bfd_hash_entry* |
| 1690 | elfNN_ia64_new_elf_hash_entry (entry, table, string) |
| 1691 | struct bfd_hash_entry *entry; |
| 1692 | struct bfd_hash_table *table; |
| 1693 | const char *string; |
| 1694 | { |
| 1695 | struct elfNN_ia64_link_hash_entry *ret; |
| 1696 | ret = (struct elfNN_ia64_link_hash_entry *) entry; |
| 1697 | |
| 1698 | /* Allocate the structure if it has not already been allocated by a |
| 1699 | subclass. */ |
| 1700 | if (!ret) |
| 1701 | ret = bfd_hash_allocate (table, sizeof (*ret)); |
| 1702 | |
| 1703 | if (!ret) |
| 1704 | return 0; |
| 1705 | |
| 1706 | /* Initialize our local data. All zeros, and definitely easier |
| 1707 | than setting a handful of bit fields. */ |
| 1708 | memset (ret, 0, sizeof (*ret)); |
| 1709 | |
| 1710 | /* Call the allocation method of the superclass. */ |
| 1711 | ret = ((struct elfNN_ia64_link_hash_entry *) |
| 1712 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 1713 | table, string)); |
| 1714 | |
| 1715 | return (struct bfd_hash_entry *) ret; |
| 1716 | } |
| 1717 | |
| 1718 | static void |
| 1719 | elfNN_ia64_hash_copy_indirect (bed, xdir, xind) |
| 1720 | struct elf_backend_data *bed ATTRIBUTE_UNUSED; |
| 1721 | struct elf_link_hash_entry *xdir, *xind; |
| 1722 | { |
| 1723 | struct elfNN_ia64_link_hash_entry *dir, *ind; |
| 1724 | |
| 1725 | dir = (struct elfNN_ia64_link_hash_entry *) xdir; |
| 1726 | ind = (struct elfNN_ia64_link_hash_entry *) xind; |
| 1727 | |
| 1728 | /* Copy down any references that we may have already seen to the |
| 1729 | symbol which just became indirect. */ |
| 1730 | |
| 1731 | dir->root.elf_link_hash_flags |= |
| 1732 | (ind->root.elf_link_hash_flags |
| 1733 | & (ELF_LINK_HASH_REF_DYNAMIC |
| 1734 | | ELF_LINK_HASH_REF_REGULAR |
| 1735 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK)); |
| 1736 | |
| 1737 | if (ind->root.root.type != bfd_link_hash_indirect) |
| 1738 | return; |
| 1739 | |
| 1740 | /* Copy over the got and plt data. This would have been done |
| 1741 | by check_relocs. */ |
| 1742 | |
| 1743 | if (dir->info == NULL) |
| 1744 | { |
| 1745 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 1746 | |
| 1747 | dir->info = dyn_i = ind->info; |
| 1748 | ind->info = NULL; |
| 1749 | |
| 1750 | /* Fix up the dyn_sym_info pointers to the global symbol. */ |
| 1751 | for (; dyn_i; dyn_i = dyn_i->next) |
| 1752 | dyn_i->h = &dir->root; |
| 1753 | } |
| 1754 | BFD_ASSERT (ind->info == NULL); |
| 1755 | |
| 1756 | /* Copy over the dynindx. */ |
| 1757 | |
| 1758 | if (dir->root.dynindx == -1) |
| 1759 | { |
| 1760 | dir->root.dynindx = ind->root.dynindx; |
| 1761 | dir->root.dynstr_index = ind->root.dynstr_index; |
| 1762 | ind->root.dynindx = -1; |
| 1763 | ind->root.dynstr_index = 0; |
| 1764 | } |
| 1765 | BFD_ASSERT (ind->root.dynindx == -1); |
| 1766 | } |
| 1767 | |
| 1768 | static void |
| 1769 | elfNN_ia64_hash_hide_symbol (info, xh, force_local) |
| 1770 | struct bfd_link_info *info; |
| 1771 | struct elf_link_hash_entry *xh; |
| 1772 | bfd_boolean force_local; |
| 1773 | { |
| 1774 | struct elfNN_ia64_link_hash_entry *h; |
| 1775 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 1776 | |
| 1777 | h = (struct elfNN_ia64_link_hash_entry *)xh; |
| 1778 | |
| 1779 | _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local); |
| 1780 | |
| 1781 | for (dyn_i = h->info; dyn_i; dyn_i = dyn_i->next) |
| 1782 | dyn_i->want_plt2 = 0; |
| 1783 | } |
| 1784 | |
| 1785 | /* Create the derived linker hash table. The IA-64 ELF port uses this |
| 1786 | derived hash table to keep information specific to the IA-64 ElF |
| 1787 | linker (without using static variables). */ |
| 1788 | |
| 1789 | static struct bfd_link_hash_table* |
| 1790 | elfNN_ia64_hash_table_create (abfd) |
| 1791 | bfd *abfd; |
| 1792 | { |
| 1793 | struct elfNN_ia64_link_hash_table *ret; |
| 1794 | |
| 1795 | ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret)); |
| 1796 | if (!ret) |
| 1797 | return 0; |
| 1798 | |
| 1799 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
| 1800 | elfNN_ia64_new_elf_hash_entry)) |
| 1801 | { |
| 1802 | free (ret); |
| 1803 | return 0; |
| 1804 | } |
| 1805 | |
| 1806 | if (!elfNN_ia64_local_hash_table_init (&ret->loc_hash_table, abfd, |
| 1807 | elfNN_ia64_new_loc_hash_entry)) |
| 1808 | { |
| 1809 | free (ret); |
| 1810 | return 0; |
| 1811 | } |
| 1812 | |
| 1813 | return &ret->root.root; |
| 1814 | } |
| 1815 | |
| 1816 | /* Look up an entry in a Alpha ELF linker hash table. */ |
| 1817 | |
| 1818 | static INLINE struct elfNN_ia64_local_hash_entry * |
| 1819 | elfNN_ia64_local_hash_lookup(table, string, create, copy) |
| 1820 | struct elfNN_ia64_local_hash_table *table; |
| 1821 | const char *string; |
| 1822 | bfd_boolean create, copy; |
| 1823 | { |
| 1824 | return ((struct elfNN_ia64_local_hash_entry *) |
| 1825 | bfd_hash_lookup (&table->root, string, create, copy)); |
| 1826 | } |
| 1827 | |
| 1828 | /* Traverse both local and global hash tables. */ |
| 1829 | |
| 1830 | struct elfNN_ia64_dyn_sym_traverse_data |
| 1831 | { |
| 1832 | bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR)); |
| 1833 | PTR data; |
| 1834 | }; |
| 1835 | |
| 1836 | static bfd_boolean |
| 1837 | elfNN_ia64_global_dyn_sym_thunk (xentry, xdata) |
| 1838 | struct bfd_hash_entry *xentry; |
| 1839 | PTR xdata; |
| 1840 | { |
| 1841 | struct elfNN_ia64_link_hash_entry *entry |
| 1842 | = (struct elfNN_ia64_link_hash_entry *) xentry; |
| 1843 | struct elfNN_ia64_dyn_sym_traverse_data *data |
| 1844 | = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata; |
| 1845 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 1846 | |
| 1847 | if (entry->root.root.type == bfd_link_hash_warning) |
| 1848 | entry = (struct elfNN_ia64_link_hash_entry *) entry->root.root.u.i.link; |
| 1849 | |
| 1850 | for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next) |
| 1851 | if (! (*data->func) (dyn_i, data->data)) |
| 1852 | return FALSE; |
| 1853 | return TRUE; |
| 1854 | } |
| 1855 | |
| 1856 | static bfd_boolean |
| 1857 | elfNN_ia64_local_dyn_sym_thunk (xentry, xdata) |
| 1858 | struct bfd_hash_entry *xentry; |
| 1859 | PTR xdata; |
| 1860 | { |
| 1861 | struct elfNN_ia64_local_hash_entry *entry |
| 1862 | = (struct elfNN_ia64_local_hash_entry *) xentry; |
| 1863 | struct elfNN_ia64_dyn_sym_traverse_data *data |
| 1864 | = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata; |
| 1865 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 1866 | |
| 1867 | for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next) |
| 1868 | if (! (*data->func) (dyn_i, data->data)) |
| 1869 | return FALSE; |
| 1870 | return TRUE; |
| 1871 | } |
| 1872 | |
| 1873 | static void |
| 1874 | elfNN_ia64_dyn_sym_traverse (ia64_info, func, data) |
| 1875 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 1876 | bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR)); |
| 1877 | PTR data; |
| 1878 | { |
| 1879 | struct elfNN_ia64_dyn_sym_traverse_data xdata; |
| 1880 | |
| 1881 | xdata.func = func; |
| 1882 | xdata.data = data; |
| 1883 | |
| 1884 | elf_link_hash_traverse (&ia64_info->root, |
| 1885 | elfNN_ia64_global_dyn_sym_thunk, &xdata); |
| 1886 | bfd_hash_traverse (&ia64_info->loc_hash_table.root, |
| 1887 | elfNN_ia64_local_dyn_sym_thunk, &xdata); |
| 1888 | } |
| 1889 | \f |
| 1890 | static bfd_boolean |
| 1891 | elfNN_ia64_create_dynamic_sections (abfd, info) |
| 1892 | bfd *abfd; |
| 1893 | struct bfd_link_info *info; |
| 1894 | { |
| 1895 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 1896 | asection *s; |
| 1897 | |
| 1898 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) |
| 1899 | return FALSE; |
| 1900 | |
| 1901 | ia64_info = elfNN_ia64_hash_table (info); |
| 1902 | |
| 1903 | ia64_info->plt_sec = bfd_get_section_by_name (abfd, ".plt"); |
| 1904 | ia64_info->got_sec = bfd_get_section_by_name (abfd, ".got"); |
| 1905 | |
| 1906 | { |
| 1907 | flagword flags = bfd_get_section_flags (abfd, ia64_info->got_sec); |
| 1908 | bfd_set_section_flags (abfd, ia64_info->got_sec, SEC_SMALL_DATA | flags); |
| 1909 | } |
| 1910 | |
| 1911 | if (!get_pltoff (abfd, info, ia64_info)) |
| 1912 | return FALSE; |
| 1913 | |
| 1914 | s = bfd_make_section(abfd, ".rela.IA_64.pltoff"); |
| 1915 | if (s == NULL |
| 1916 | || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD |
| 1917 | | SEC_HAS_CONTENTS |
| 1918 | | SEC_IN_MEMORY |
| 1919 | | SEC_LINKER_CREATED |
| 1920 | | SEC_READONLY)) |
| 1921 | || !bfd_set_section_alignment (abfd, s, 3)) |
| 1922 | return FALSE; |
| 1923 | ia64_info->rel_pltoff_sec = s; |
| 1924 | |
| 1925 | s = bfd_make_section(abfd, ".rela.got"); |
| 1926 | if (s == NULL |
| 1927 | || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD |
| 1928 | | SEC_HAS_CONTENTS |
| 1929 | | SEC_IN_MEMORY |
| 1930 | | SEC_LINKER_CREATED |
| 1931 | | SEC_READONLY)) |
| 1932 | || !bfd_set_section_alignment (abfd, s, 3)) |
| 1933 | return FALSE; |
| 1934 | ia64_info->rel_got_sec = s; |
| 1935 | |
| 1936 | return TRUE; |
| 1937 | } |
| 1938 | |
| 1939 | /* Find and/or create a hash entry for local symbol. */ |
| 1940 | static struct elfNN_ia64_local_hash_entry * |
| 1941 | get_local_sym_hash (ia64_info, abfd, rel, create) |
| 1942 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 1943 | bfd *abfd; |
| 1944 | const Elf_Internal_Rela *rel; |
| 1945 | bfd_boolean create; |
| 1946 | { |
| 1947 | struct elfNN_ia64_local_hash_entry *ret; |
| 1948 | asection *sec = abfd->sections; |
| 1949 | char addr_name [34]; |
| 1950 | |
| 1951 | BFD_ASSERT ((sizeof (sec->id)*2 + 1 + sizeof (unsigned long)*2 + 1) <= 34); |
| 1952 | BFD_ASSERT (sec); |
| 1953 | |
| 1954 | /* Construct a string for use in the elfNN_ia64_local_hash_table. |
| 1955 | name describes what was once anonymous memory. */ |
| 1956 | |
| 1957 | sprintf (addr_name, "%x:%lx", |
| 1958 | sec->id, (unsigned long) ELFNN_R_SYM (rel->r_info)); |
| 1959 | |
| 1960 | /* Collect the canonical entry data for this address. */ |
| 1961 | ret = elfNN_ia64_local_hash_lookup (&ia64_info->loc_hash_table, |
| 1962 | addr_name, create, create); |
| 1963 | return ret; |
| 1964 | } |
| 1965 | |
| 1966 | /* Find and/or create a descriptor for dynamic symbol info. This will |
| 1967 | vary based on global or local symbol, and the addend to the reloc. */ |
| 1968 | |
| 1969 | static struct elfNN_ia64_dyn_sym_info * |
| 1970 | get_dyn_sym_info (ia64_info, h, abfd, rel, create) |
| 1971 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 1972 | struct elf_link_hash_entry *h; |
| 1973 | bfd *abfd; |
| 1974 | const Elf_Internal_Rela *rel; |
| 1975 | bfd_boolean create; |
| 1976 | { |
| 1977 | struct elfNN_ia64_dyn_sym_info **pp; |
| 1978 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 1979 | bfd_vma addend = rel ? rel->r_addend : 0; |
| 1980 | |
| 1981 | if (h) |
| 1982 | pp = &((struct elfNN_ia64_link_hash_entry *)h)->info; |
| 1983 | else |
| 1984 | { |
| 1985 | struct elfNN_ia64_local_hash_entry *loc_h; |
| 1986 | |
| 1987 | loc_h = get_local_sym_hash (ia64_info, abfd, rel, create); |
| 1988 | if (!loc_h) |
| 1989 | { |
| 1990 | BFD_ASSERT (!create); |
| 1991 | return NULL; |
| 1992 | } |
| 1993 | |
| 1994 | pp = &loc_h->info; |
| 1995 | } |
| 1996 | |
| 1997 | for (dyn_i = *pp; dyn_i && dyn_i->addend != addend; dyn_i = *pp) |
| 1998 | pp = &dyn_i->next; |
| 1999 | |
| 2000 | if (dyn_i == NULL && create) |
| 2001 | { |
| 2002 | dyn_i = ((struct elfNN_ia64_dyn_sym_info *) |
| 2003 | bfd_zalloc (abfd, (bfd_size_type) sizeof *dyn_i)); |
| 2004 | *pp = dyn_i; |
| 2005 | dyn_i->addend = addend; |
| 2006 | } |
| 2007 | |
| 2008 | return dyn_i; |
| 2009 | } |
| 2010 | |
| 2011 | static asection * |
| 2012 | get_got (abfd, info, ia64_info) |
| 2013 | bfd *abfd; |
| 2014 | struct bfd_link_info *info; |
| 2015 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2016 | { |
| 2017 | asection *got; |
| 2018 | bfd *dynobj; |
| 2019 | |
| 2020 | got = ia64_info->got_sec; |
| 2021 | if (!got) |
| 2022 | { |
| 2023 | flagword flags; |
| 2024 | |
| 2025 | dynobj = ia64_info->root.dynobj; |
| 2026 | if (!dynobj) |
| 2027 | ia64_info->root.dynobj = dynobj = abfd; |
| 2028 | if (!_bfd_elf_create_got_section (dynobj, info)) |
| 2029 | return 0; |
| 2030 | |
| 2031 | got = bfd_get_section_by_name (dynobj, ".got"); |
| 2032 | BFD_ASSERT (got); |
| 2033 | ia64_info->got_sec = got; |
| 2034 | |
| 2035 | flags = bfd_get_section_flags (abfd, got); |
| 2036 | bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags); |
| 2037 | } |
| 2038 | |
| 2039 | return got; |
| 2040 | } |
| 2041 | |
| 2042 | /* Create function descriptor section (.opd). This section is called .opd |
| 2043 | because it contains "official prodecure descriptors". The "official" |
| 2044 | refers to the fact that these descriptors are used when taking the address |
| 2045 | of a procedure, thus ensuring a unique address for each procedure. */ |
| 2046 | |
| 2047 | static asection * |
| 2048 | get_fptr (abfd, info, ia64_info) |
| 2049 | bfd *abfd; |
| 2050 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 2051 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2052 | { |
| 2053 | asection *fptr; |
| 2054 | bfd *dynobj; |
| 2055 | |
| 2056 | fptr = ia64_info->fptr_sec; |
| 2057 | if (!fptr) |
| 2058 | { |
| 2059 | dynobj = ia64_info->root.dynobj; |
| 2060 | if (!dynobj) |
| 2061 | ia64_info->root.dynobj = dynobj = abfd; |
| 2062 | |
| 2063 | fptr = bfd_make_section (dynobj, ".opd"); |
| 2064 | if (!fptr |
| 2065 | || !bfd_set_section_flags (dynobj, fptr, |
| 2066 | (SEC_ALLOC |
| 2067 | | SEC_LOAD |
| 2068 | | SEC_HAS_CONTENTS |
| 2069 | | SEC_IN_MEMORY |
| 2070 | | SEC_READONLY |
| 2071 | | SEC_LINKER_CREATED)) |
| 2072 | || !bfd_set_section_alignment (abfd, fptr, 4)) |
| 2073 | { |
| 2074 | BFD_ASSERT (0); |
| 2075 | return NULL; |
| 2076 | } |
| 2077 | |
| 2078 | ia64_info->fptr_sec = fptr; |
| 2079 | } |
| 2080 | |
| 2081 | return fptr; |
| 2082 | } |
| 2083 | |
| 2084 | static asection * |
| 2085 | get_pltoff (abfd, info, ia64_info) |
| 2086 | bfd *abfd; |
| 2087 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 2088 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2089 | { |
| 2090 | asection *pltoff; |
| 2091 | bfd *dynobj; |
| 2092 | |
| 2093 | pltoff = ia64_info->pltoff_sec; |
| 2094 | if (!pltoff) |
| 2095 | { |
| 2096 | dynobj = ia64_info->root.dynobj; |
| 2097 | if (!dynobj) |
| 2098 | ia64_info->root.dynobj = dynobj = abfd; |
| 2099 | |
| 2100 | pltoff = bfd_make_section (dynobj, ELF_STRING_ia64_pltoff); |
| 2101 | if (!pltoff |
| 2102 | || !bfd_set_section_flags (dynobj, pltoff, |
| 2103 | (SEC_ALLOC |
| 2104 | | SEC_LOAD |
| 2105 | | SEC_HAS_CONTENTS |
| 2106 | | SEC_IN_MEMORY |
| 2107 | | SEC_SMALL_DATA |
| 2108 | | SEC_LINKER_CREATED)) |
| 2109 | || !bfd_set_section_alignment (abfd, pltoff, 4)) |
| 2110 | { |
| 2111 | BFD_ASSERT (0); |
| 2112 | return NULL; |
| 2113 | } |
| 2114 | |
| 2115 | ia64_info->pltoff_sec = pltoff; |
| 2116 | } |
| 2117 | |
| 2118 | return pltoff; |
| 2119 | } |
| 2120 | |
| 2121 | static asection * |
| 2122 | get_reloc_section (abfd, ia64_info, sec, create) |
| 2123 | bfd *abfd; |
| 2124 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2125 | asection *sec; |
| 2126 | bfd_boolean create; |
| 2127 | { |
| 2128 | const char *srel_name; |
| 2129 | asection *srel; |
| 2130 | bfd *dynobj; |
| 2131 | |
| 2132 | srel_name = (bfd_elf_string_from_elf_section |
| 2133 | (abfd, elf_elfheader(abfd)->e_shstrndx, |
| 2134 | elf_section_data(sec)->rel_hdr.sh_name)); |
| 2135 | if (srel_name == NULL) |
| 2136 | return NULL; |
| 2137 | |
| 2138 | BFD_ASSERT ((strncmp (srel_name, ".rela", 5) == 0 |
| 2139 | && strcmp (bfd_get_section_name (abfd, sec), |
| 2140 | srel_name+5) == 0) |
| 2141 | || (strncmp (srel_name, ".rel", 4) == 0 |
| 2142 | && strcmp (bfd_get_section_name (abfd, sec), |
| 2143 | srel_name+4) == 0)); |
| 2144 | |
| 2145 | dynobj = ia64_info->root.dynobj; |
| 2146 | if (!dynobj) |
| 2147 | ia64_info->root.dynobj = dynobj = abfd; |
| 2148 | |
| 2149 | srel = bfd_get_section_by_name (dynobj, srel_name); |
| 2150 | if (srel == NULL && create) |
| 2151 | { |
| 2152 | srel = bfd_make_section (dynobj, srel_name); |
| 2153 | if (srel == NULL |
| 2154 | || !bfd_set_section_flags (dynobj, srel, |
| 2155 | (SEC_ALLOC |
| 2156 | | SEC_LOAD |
| 2157 | | SEC_HAS_CONTENTS |
| 2158 | | SEC_IN_MEMORY |
| 2159 | | SEC_LINKER_CREATED |
| 2160 | | SEC_READONLY)) |
| 2161 | || !bfd_set_section_alignment (dynobj, srel, 3)) |
| 2162 | return NULL; |
| 2163 | } |
| 2164 | |
| 2165 | if (sec->flags & SEC_READONLY) |
| 2166 | ia64_info->reltext = 1; |
| 2167 | |
| 2168 | return srel; |
| 2169 | } |
| 2170 | |
| 2171 | static bfd_boolean |
| 2172 | count_dyn_reloc (abfd, dyn_i, srel, type) |
| 2173 | bfd *abfd; |
| 2174 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2175 | asection *srel; |
| 2176 | int type; |
| 2177 | { |
| 2178 | struct elfNN_ia64_dyn_reloc_entry *rent; |
| 2179 | |
| 2180 | for (rent = dyn_i->reloc_entries; rent; rent = rent->next) |
| 2181 | if (rent->srel == srel && rent->type == type) |
| 2182 | break; |
| 2183 | |
| 2184 | if (!rent) |
| 2185 | { |
| 2186 | rent = ((struct elfNN_ia64_dyn_reloc_entry *) |
| 2187 | bfd_alloc (abfd, (bfd_size_type) sizeof (*rent))); |
| 2188 | if (!rent) |
| 2189 | return FALSE; |
| 2190 | |
| 2191 | rent->next = dyn_i->reloc_entries; |
| 2192 | rent->srel = srel; |
| 2193 | rent->type = type; |
| 2194 | rent->count = 0; |
| 2195 | dyn_i->reloc_entries = rent; |
| 2196 | } |
| 2197 | rent->count++; |
| 2198 | |
| 2199 | return TRUE; |
| 2200 | } |
| 2201 | |
| 2202 | static bfd_boolean |
| 2203 | elfNN_ia64_check_relocs (abfd, info, sec, relocs) |
| 2204 | bfd *abfd; |
| 2205 | struct bfd_link_info *info; |
| 2206 | asection *sec; |
| 2207 | const Elf_Internal_Rela *relocs; |
| 2208 | { |
| 2209 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2210 | const Elf_Internal_Rela *relend; |
| 2211 | Elf_Internal_Shdr *symtab_hdr; |
| 2212 | const Elf_Internal_Rela *rel; |
| 2213 | asection *got, *fptr, *srel; |
| 2214 | |
| 2215 | if (info->relocateable) |
| 2216 | return TRUE; |
| 2217 | |
| 2218 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 2219 | ia64_info = elfNN_ia64_hash_table (info); |
| 2220 | |
| 2221 | got = fptr = srel = NULL; |
| 2222 | |
| 2223 | relend = relocs + sec->reloc_count; |
| 2224 | for (rel = relocs; rel < relend; ++rel) |
| 2225 | { |
| 2226 | enum { |
| 2227 | NEED_GOT = 1, |
| 2228 | NEED_GOTX = 2, |
| 2229 | NEED_FPTR = 4, |
| 2230 | NEED_PLTOFF = 8, |
| 2231 | NEED_MIN_PLT = 16, |
| 2232 | NEED_FULL_PLT = 32, |
| 2233 | NEED_DYNREL = 64, |
| 2234 | NEED_LTOFF_FPTR = 128, |
| 2235 | NEED_TPREL = 256, |
| 2236 | NEED_DTPMOD = 512, |
| 2237 | NEED_DTPREL = 1024 |
| 2238 | }; |
| 2239 | |
| 2240 | struct elf_link_hash_entry *h = NULL; |
| 2241 | unsigned long r_symndx = ELFNN_R_SYM (rel->r_info); |
| 2242 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2243 | int need_entry; |
| 2244 | bfd_boolean maybe_dynamic; |
| 2245 | int dynrel_type = R_IA64_NONE; |
| 2246 | |
| 2247 | if (r_symndx >= symtab_hdr->sh_info) |
| 2248 | { |
| 2249 | /* We're dealing with a global symbol -- find its hash entry |
| 2250 | and mark it as being referenced. */ |
| 2251 | long indx = r_symndx - symtab_hdr->sh_info; |
| 2252 | h = elf_sym_hashes (abfd)[indx]; |
| 2253 | while (h->root.type == bfd_link_hash_indirect |
| 2254 | || h->root.type == bfd_link_hash_warning) |
| 2255 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2256 | |
| 2257 | h->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR; |
| 2258 | } |
| 2259 | |
| 2260 | /* We can only get preliminary data on whether a symbol is |
| 2261 | locally or externally defined, as not all of the input files |
| 2262 | have yet been processed. Do something with what we know, as |
| 2263 | this may help reduce memory usage and processing time later. */ |
| 2264 | maybe_dynamic = FALSE; |
| 2265 | if (h && ((info->shared |
| 2266 | && (!info->symbolic || info->allow_shlib_undefined)) |
| 2267 | || ! (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) |
| 2268 | || h->root.type == bfd_link_hash_defweak |
| 2269 | || elfNN_ia64_aix_vec (abfd->xvec))) |
| 2270 | maybe_dynamic = TRUE; |
| 2271 | |
| 2272 | need_entry = 0; |
| 2273 | switch (ELFNN_R_TYPE (rel->r_info)) |
| 2274 | { |
| 2275 | case R_IA64_TPREL64MSB: |
| 2276 | case R_IA64_TPREL64LSB: |
| 2277 | if (info->shared || maybe_dynamic) |
| 2278 | need_entry = NEED_DYNREL; |
| 2279 | dynrel_type = R_IA64_TPREL64LSB; |
| 2280 | if (info->shared) |
| 2281 | info->flags |= DF_STATIC_TLS; |
| 2282 | break; |
| 2283 | |
| 2284 | case R_IA64_LTOFF_TPREL22: |
| 2285 | need_entry = NEED_TPREL; |
| 2286 | if (info->shared) |
| 2287 | info->flags |= DF_STATIC_TLS; |
| 2288 | break; |
| 2289 | |
| 2290 | case R_IA64_DTPREL64MSB: |
| 2291 | case R_IA64_DTPREL64LSB: |
| 2292 | if (info->shared || maybe_dynamic) |
| 2293 | need_entry = NEED_DYNREL; |
| 2294 | dynrel_type = R_IA64_DTPREL64LSB; |
| 2295 | break; |
| 2296 | |
| 2297 | case R_IA64_LTOFF_DTPREL22: |
| 2298 | need_entry = NEED_DTPREL; |
| 2299 | break; |
| 2300 | |
| 2301 | case R_IA64_DTPMOD64MSB: |
| 2302 | case R_IA64_DTPMOD64LSB: |
| 2303 | if (info->shared || maybe_dynamic) |
| 2304 | need_entry = NEED_DYNREL; |
| 2305 | dynrel_type = R_IA64_DTPMOD64LSB; |
| 2306 | break; |
| 2307 | |
| 2308 | case R_IA64_LTOFF_DTPMOD22: |
| 2309 | need_entry = NEED_DTPMOD; |
| 2310 | break; |
| 2311 | |
| 2312 | case R_IA64_LTOFF_FPTR22: |
| 2313 | case R_IA64_LTOFF_FPTR64I: |
| 2314 | case R_IA64_LTOFF_FPTR32MSB: |
| 2315 | case R_IA64_LTOFF_FPTR32LSB: |
| 2316 | case R_IA64_LTOFF_FPTR64MSB: |
| 2317 | case R_IA64_LTOFF_FPTR64LSB: |
| 2318 | need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR; |
| 2319 | break; |
| 2320 | |
| 2321 | case R_IA64_FPTR64I: |
| 2322 | case R_IA64_FPTR32MSB: |
| 2323 | case R_IA64_FPTR32LSB: |
| 2324 | case R_IA64_FPTR64MSB: |
| 2325 | case R_IA64_FPTR64LSB: |
| 2326 | if (info->shared || h || elfNN_ia64_aix_vec (abfd->xvec)) |
| 2327 | need_entry = NEED_FPTR | NEED_DYNREL; |
| 2328 | else |
| 2329 | need_entry = NEED_FPTR; |
| 2330 | dynrel_type = R_IA64_FPTR64LSB; |
| 2331 | break; |
| 2332 | |
| 2333 | case R_IA64_LTOFF22: |
| 2334 | case R_IA64_LTOFF64I: |
| 2335 | need_entry = NEED_GOT; |
| 2336 | break; |
| 2337 | |
| 2338 | case R_IA64_LTOFF22X: |
| 2339 | need_entry = NEED_GOTX; |
| 2340 | break; |
| 2341 | |
| 2342 | case R_IA64_PLTOFF22: |
| 2343 | case R_IA64_PLTOFF64I: |
| 2344 | case R_IA64_PLTOFF64MSB: |
| 2345 | case R_IA64_PLTOFF64LSB: |
| 2346 | need_entry = NEED_PLTOFF; |
| 2347 | if (h) |
| 2348 | { |
| 2349 | if (maybe_dynamic) |
| 2350 | need_entry |= NEED_MIN_PLT; |
| 2351 | } |
| 2352 | else |
| 2353 | { |
| 2354 | (*info->callbacks->warning) |
| 2355 | (info, _("@pltoff reloc against local symbol"), 0, |
| 2356 | abfd, 0, (bfd_vma) 0); |
| 2357 | } |
| 2358 | break; |
| 2359 | |
| 2360 | case R_IA64_PCREL21B: |
| 2361 | case R_IA64_PCREL60B: |
| 2362 | /* Depending on where this symbol is defined, we may or may not |
| 2363 | need a full plt entry. Only skip if we know we'll not need |
| 2364 | the entry -- static or symbolic, and the symbol definition |
| 2365 | has already been seen. */ |
| 2366 | if (maybe_dynamic && rel->r_addend == 0) |
| 2367 | need_entry = NEED_FULL_PLT; |
| 2368 | break; |
| 2369 | |
| 2370 | case R_IA64_IMM14: |
| 2371 | case R_IA64_IMM22: |
| 2372 | case R_IA64_IMM64: |
| 2373 | case R_IA64_DIR32MSB: |
| 2374 | case R_IA64_DIR32LSB: |
| 2375 | case R_IA64_DIR64MSB: |
| 2376 | case R_IA64_DIR64LSB: |
| 2377 | /* Shared objects will always need at least a REL relocation. */ |
| 2378 | if (info->shared || maybe_dynamic |
| 2379 | || (elfNN_ia64_aix_vec (abfd->xvec) |
| 2380 | && (!h || strcmp (h->root.root.string, |
| 2381 | "__GLOB_DATA_PTR") != 0))) |
| 2382 | need_entry = NEED_DYNREL; |
| 2383 | dynrel_type = R_IA64_DIR64LSB; |
| 2384 | break; |
| 2385 | |
| 2386 | case R_IA64_IPLTMSB: |
| 2387 | case R_IA64_IPLTLSB: |
| 2388 | /* Shared objects will always need at least a REL relocation. */ |
| 2389 | if (info->shared || maybe_dynamic) |
| 2390 | need_entry = NEED_DYNREL; |
| 2391 | dynrel_type = R_IA64_IPLTLSB; |
| 2392 | break; |
| 2393 | |
| 2394 | case R_IA64_PCREL22: |
| 2395 | case R_IA64_PCREL64I: |
| 2396 | case R_IA64_PCREL32MSB: |
| 2397 | case R_IA64_PCREL32LSB: |
| 2398 | case R_IA64_PCREL64MSB: |
| 2399 | case R_IA64_PCREL64LSB: |
| 2400 | if (maybe_dynamic) |
| 2401 | need_entry = NEED_DYNREL; |
| 2402 | dynrel_type = R_IA64_PCREL64LSB; |
| 2403 | break; |
| 2404 | } |
| 2405 | |
| 2406 | if (!need_entry) |
| 2407 | continue; |
| 2408 | |
| 2409 | if ((need_entry & NEED_FPTR) != 0 |
| 2410 | && rel->r_addend) |
| 2411 | { |
| 2412 | (*info->callbacks->warning) |
| 2413 | (info, _("non-zero addend in @fptr reloc"), 0, |
| 2414 | abfd, 0, (bfd_vma) 0); |
| 2415 | } |
| 2416 | |
| 2417 | dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE); |
| 2418 | |
| 2419 | /* Record whether or not this is a local symbol. */ |
| 2420 | dyn_i->h = h; |
| 2421 | |
| 2422 | /* Create what's needed. */ |
| 2423 | if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL |
| 2424 | | NEED_DTPMOD | NEED_DTPREL)) |
| 2425 | { |
| 2426 | if (!got) |
| 2427 | { |
| 2428 | got = get_got (abfd, info, ia64_info); |
| 2429 | if (!got) |
| 2430 | return FALSE; |
| 2431 | } |
| 2432 | if (need_entry & NEED_GOT) |
| 2433 | dyn_i->want_got = 1; |
| 2434 | if (need_entry & NEED_GOTX) |
| 2435 | dyn_i->want_gotx = 1; |
| 2436 | if (need_entry & NEED_TPREL) |
| 2437 | dyn_i->want_tprel = 1; |
| 2438 | if (need_entry & NEED_DTPMOD) |
| 2439 | dyn_i->want_dtpmod = 1; |
| 2440 | if (need_entry & NEED_DTPREL) |
| 2441 | dyn_i->want_dtprel = 1; |
| 2442 | } |
| 2443 | if (need_entry & NEED_FPTR) |
| 2444 | { |
| 2445 | if (!fptr) |
| 2446 | { |
| 2447 | fptr = get_fptr (abfd, info, ia64_info); |
| 2448 | if (!fptr) |
| 2449 | return FALSE; |
| 2450 | } |
| 2451 | |
| 2452 | /* FPTRs for shared libraries are allocated by the dynamic |
| 2453 | linker. Make sure this local symbol will appear in the |
| 2454 | dynamic symbol table. */ |
| 2455 | if (!h && (info->shared |
| 2456 | /* AIX also needs one */ |
| 2457 | || elfNN_ia64_aix_vec (abfd->xvec))) |
| 2458 | { |
| 2459 | if (! (_bfd_elfNN_link_record_local_dynamic_symbol |
| 2460 | (info, abfd, (long) r_symndx))) |
| 2461 | return FALSE; |
| 2462 | } |
| 2463 | |
| 2464 | dyn_i->want_fptr = 1; |
| 2465 | } |
| 2466 | if (need_entry & NEED_LTOFF_FPTR) |
| 2467 | dyn_i->want_ltoff_fptr = 1; |
| 2468 | if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT)) |
| 2469 | { |
| 2470 | if (!ia64_info->root.dynobj) |
| 2471 | ia64_info->root.dynobj = abfd; |
| 2472 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
| 2473 | dyn_i->want_plt = 1; |
| 2474 | } |
| 2475 | if (need_entry & NEED_FULL_PLT) |
| 2476 | dyn_i->want_plt2 = 1; |
| 2477 | if (need_entry & NEED_PLTOFF) |
| 2478 | dyn_i->want_pltoff = 1; |
| 2479 | if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC)) |
| 2480 | { |
| 2481 | if (!srel) |
| 2482 | { |
| 2483 | srel = get_reloc_section (abfd, ia64_info, sec, TRUE); |
| 2484 | if (!srel) |
| 2485 | return FALSE; |
| 2486 | } |
| 2487 | if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type)) |
| 2488 | return FALSE; |
| 2489 | } |
| 2490 | } |
| 2491 | |
| 2492 | return TRUE; |
| 2493 | } |
| 2494 | |
| 2495 | /* For cleanliness, and potentially faster dynamic loading, allocate |
| 2496 | external GOT entries first. */ |
| 2497 | |
| 2498 | static bfd_boolean |
| 2499 | allocate_global_data_got (dyn_i, data) |
| 2500 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2501 | PTR data; |
| 2502 | { |
| 2503 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2504 | |
| 2505 | if ((dyn_i->want_got || dyn_i->want_gotx) |
| 2506 | && ! dyn_i->want_fptr |
| 2507 | && (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info) |
| 2508 | || (elfNN_ia64_aix_vec (x->info->hash->creator) |
| 2509 | && (!dyn_i->h || strcmp (dyn_i->h->root.root.string, |
| 2510 | "__GLOB_DATA_PTR") != 0)))) |
| 2511 | { |
| 2512 | dyn_i->got_offset = x->ofs; |
| 2513 | x->ofs += 8; |
| 2514 | } |
| 2515 | if (dyn_i->want_tprel) |
| 2516 | { |
| 2517 | dyn_i->tprel_offset = x->ofs; |
| 2518 | x->ofs += 8; |
| 2519 | } |
| 2520 | if (dyn_i->want_dtpmod) |
| 2521 | { |
| 2522 | if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info)) |
| 2523 | { |
| 2524 | dyn_i->dtpmod_offset = x->ofs; |
| 2525 | x->ofs += 8; |
| 2526 | } |
| 2527 | else |
| 2528 | { |
| 2529 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2530 | |
| 2531 | ia64_info = elfNN_ia64_hash_table (x->info); |
| 2532 | if (ia64_info->self_dtpmod_offset == (bfd_vma) -1) |
| 2533 | { |
| 2534 | ia64_info->self_dtpmod_offset = x->ofs; |
| 2535 | x->ofs += 8; |
| 2536 | } |
| 2537 | dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset; |
| 2538 | } |
| 2539 | } |
| 2540 | if (dyn_i->want_dtprel) |
| 2541 | { |
| 2542 | dyn_i->dtprel_offset = x->ofs; |
| 2543 | x->ofs += 8; |
| 2544 | } |
| 2545 | return TRUE; |
| 2546 | } |
| 2547 | |
| 2548 | /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */ |
| 2549 | |
| 2550 | static bfd_boolean |
| 2551 | allocate_global_fptr_got (dyn_i, data) |
| 2552 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2553 | PTR data; |
| 2554 | { |
| 2555 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2556 | |
| 2557 | if (dyn_i->want_got |
| 2558 | && dyn_i->want_fptr |
| 2559 | && (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info) |
| 2560 | || elfNN_ia64_aix_vec (x->info->hash->creator))) |
| 2561 | { |
| 2562 | dyn_i->got_offset = x->ofs; |
| 2563 | x->ofs += 8; |
| 2564 | } |
| 2565 | return TRUE; |
| 2566 | } |
| 2567 | |
| 2568 | /* Lastly, allocate all the GOT entries for local data. */ |
| 2569 | |
| 2570 | static bfd_boolean |
| 2571 | allocate_local_got (dyn_i, data) |
| 2572 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2573 | PTR data; |
| 2574 | { |
| 2575 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2576 | |
| 2577 | if ((dyn_i->want_got || dyn_i->want_gotx) |
| 2578 | && ! (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info) |
| 2579 | || elfNN_ia64_aix_vec (x->info->hash->creator))) |
| 2580 | { |
| 2581 | dyn_i->got_offset = x->ofs; |
| 2582 | x->ofs += 8; |
| 2583 | } |
| 2584 | return TRUE; |
| 2585 | } |
| 2586 | |
| 2587 | /* Search for the index of a global symbol in it's defining object file. */ |
| 2588 | |
| 2589 | static long |
| 2590 | global_sym_index (h) |
| 2591 | struct elf_link_hash_entry *h; |
| 2592 | { |
| 2593 | struct elf_link_hash_entry **p; |
| 2594 | bfd *obj; |
| 2595 | |
| 2596 | BFD_ASSERT (h->root.type == bfd_link_hash_defined |
| 2597 | || h->root.type == bfd_link_hash_defweak); |
| 2598 | |
| 2599 | obj = h->root.u.def.section->owner; |
| 2600 | for (p = elf_sym_hashes (obj); *p != h; ++p) |
| 2601 | continue; |
| 2602 | |
| 2603 | return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info; |
| 2604 | } |
| 2605 | |
| 2606 | /* Allocate function descriptors. We can do these for every function |
| 2607 | in a main executable that is not exported. */ |
| 2608 | |
| 2609 | static bfd_boolean |
| 2610 | allocate_fptr (dyn_i, data) |
| 2611 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2612 | PTR data; |
| 2613 | { |
| 2614 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2615 | |
| 2616 | if (dyn_i->want_fptr) |
| 2617 | { |
| 2618 | struct elf_link_hash_entry *h = dyn_i->h; |
| 2619 | |
| 2620 | if (h) |
| 2621 | while (h->root.type == bfd_link_hash_indirect |
| 2622 | || h->root.type == bfd_link_hash_warning) |
| 2623 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2624 | |
| 2625 | if (x->info->shared |
| 2626 | /* AIX needs an FPTR in this case. */ |
| 2627 | || (elfNN_ia64_aix_vec (x->info->hash->creator) |
| 2628 | && (!h |
| 2629 | || h->root.type == bfd_link_hash_defined |
| 2630 | || h->root.type == bfd_link_hash_defweak))) |
| 2631 | { |
| 2632 | if (h && h->dynindx == -1) |
| 2633 | { |
| 2634 | BFD_ASSERT ((h->root.type == bfd_link_hash_defined) |
| 2635 | || (h->root.type == bfd_link_hash_defweak)); |
| 2636 | |
| 2637 | if (!_bfd_elfNN_link_record_local_dynamic_symbol |
| 2638 | (x->info, h->root.u.def.section->owner, |
| 2639 | global_sym_index (h))) |
| 2640 | return FALSE; |
| 2641 | } |
| 2642 | |
| 2643 | dyn_i->want_fptr = 0; |
| 2644 | } |
| 2645 | else if (h == NULL || h->dynindx == -1) |
| 2646 | { |
| 2647 | dyn_i->fptr_offset = x->ofs; |
| 2648 | x->ofs += 16; |
| 2649 | } |
| 2650 | else |
| 2651 | dyn_i->want_fptr = 0; |
| 2652 | } |
| 2653 | return TRUE; |
| 2654 | } |
| 2655 | |
| 2656 | /* Allocate all the minimal PLT entries. */ |
| 2657 | |
| 2658 | static bfd_boolean |
| 2659 | allocate_plt_entries (dyn_i, data) |
| 2660 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2661 | PTR data; |
| 2662 | { |
| 2663 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2664 | |
| 2665 | if (dyn_i->want_plt) |
| 2666 | { |
| 2667 | struct elf_link_hash_entry *h = dyn_i->h; |
| 2668 | |
| 2669 | if (h) |
| 2670 | while (h->root.type == bfd_link_hash_indirect |
| 2671 | || h->root.type == bfd_link_hash_warning) |
| 2672 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2673 | |
| 2674 | /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */ |
| 2675 | if (elfNN_ia64_dynamic_symbol_p (h, x->info)) |
| 2676 | { |
| 2677 | bfd_size_type offset = x->ofs; |
| 2678 | if (offset == 0) |
| 2679 | offset = PLT_HEADER_SIZE; |
| 2680 | dyn_i->plt_offset = offset; |
| 2681 | x->ofs = offset + PLT_MIN_ENTRY_SIZE; |
| 2682 | |
| 2683 | dyn_i->want_pltoff = 1; |
| 2684 | } |
| 2685 | else |
| 2686 | { |
| 2687 | dyn_i->want_plt = 0; |
| 2688 | dyn_i->want_plt2 = 0; |
| 2689 | } |
| 2690 | } |
| 2691 | return TRUE; |
| 2692 | } |
| 2693 | |
| 2694 | /* Allocate all the full PLT entries. */ |
| 2695 | |
| 2696 | static bfd_boolean |
| 2697 | allocate_plt2_entries (dyn_i, data) |
| 2698 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2699 | PTR data; |
| 2700 | { |
| 2701 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2702 | |
| 2703 | if (dyn_i->want_plt2) |
| 2704 | { |
| 2705 | struct elf_link_hash_entry *h = dyn_i->h; |
| 2706 | bfd_size_type ofs = x->ofs; |
| 2707 | |
| 2708 | dyn_i->plt2_offset = ofs; |
| 2709 | x->ofs = ofs + PLT_FULL_ENTRY_SIZE; |
| 2710 | |
| 2711 | while (h->root.type == bfd_link_hash_indirect |
| 2712 | || h->root.type == bfd_link_hash_warning) |
| 2713 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2714 | dyn_i->h->plt.offset = ofs; |
| 2715 | } |
| 2716 | return TRUE; |
| 2717 | } |
| 2718 | |
| 2719 | /* Allocate all the PLTOFF entries requested by relocations and |
| 2720 | plt entries. We can't share space with allocated FPTR entries, |
| 2721 | because the latter are not necessarily addressable by the GP. |
| 2722 | ??? Relaxation might be able to determine that they are. */ |
| 2723 | |
| 2724 | static bfd_boolean |
| 2725 | allocate_pltoff_entries (dyn_i, data) |
| 2726 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2727 | PTR data; |
| 2728 | { |
| 2729 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2730 | |
| 2731 | if (dyn_i->want_pltoff) |
| 2732 | { |
| 2733 | dyn_i->pltoff_offset = x->ofs; |
| 2734 | x->ofs += 16; |
| 2735 | } |
| 2736 | return TRUE; |
| 2737 | } |
| 2738 | |
| 2739 | /* Allocate dynamic relocations for those symbols that turned out |
| 2740 | to be dynamic. */ |
| 2741 | |
| 2742 | static bfd_boolean |
| 2743 | allocate_dynrel_entries (dyn_i, data) |
| 2744 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 2745 | PTR data; |
| 2746 | { |
| 2747 | struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data; |
| 2748 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2749 | struct elfNN_ia64_dyn_reloc_entry *rent; |
| 2750 | bfd_boolean dynamic_symbol, shared; |
| 2751 | |
| 2752 | ia64_info = elfNN_ia64_hash_table (x->info); |
| 2753 | dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info) |
| 2754 | || (elfNN_ia64_aix_vec (x->info->hash->creator) |
| 2755 | /* Don't allocate an entry for __GLOB_DATA_PTR */ |
| 2756 | && (!dyn_i->h || strcmp (dyn_i->h->root.root.string, |
| 2757 | "__GLOB_DATA_PTR") != 0)); |
| 2758 | shared = x->info->shared; |
| 2759 | |
| 2760 | /* Take care of the normal data relocations. */ |
| 2761 | |
| 2762 | for (rent = dyn_i->reloc_entries; rent; rent = rent->next) |
| 2763 | { |
| 2764 | int count = rent->count; |
| 2765 | |
| 2766 | switch (rent->type) |
| 2767 | { |
| 2768 | case R_IA64_FPTR64LSB: |
| 2769 | /* Allocate one iff !want_fptr, which by this point will |
| 2770 | be true only if we're actually allocating one statically |
| 2771 | in the main executable. */ |
| 2772 | if (dyn_i->want_fptr) |
| 2773 | continue; |
| 2774 | break; |
| 2775 | case R_IA64_PCREL64LSB: |
| 2776 | if (!dynamic_symbol) |
| 2777 | continue; |
| 2778 | break; |
| 2779 | case R_IA64_DIR64LSB: |
| 2780 | if (!dynamic_symbol && !shared) |
| 2781 | continue; |
| 2782 | break; |
| 2783 | case R_IA64_IPLTLSB: |
| 2784 | if (!dynamic_symbol && !shared) |
| 2785 | continue; |
| 2786 | /* Use two REL relocations for IPLT relocations |
| 2787 | against local symbols. */ |
| 2788 | if (!dynamic_symbol) |
| 2789 | count *= 2; |
| 2790 | break; |
| 2791 | case R_IA64_TPREL64LSB: |
| 2792 | case R_IA64_DTPREL64LSB: |
| 2793 | case R_IA64_DTPMOD64LSB: |
| 2794 | break; |
| 2795 | default: |
| 2796 | abort (); |
| 2797 | } |
| 2798 | rent->srel->_raw_size += sizeof (ElfNN_External_Rela) * count; |
| 2799 | } |
| 2800 | |
| 2801 | /* Take care of the GOT and PLT relocations. */ |
| 2802 | |
| 2803 | if (((dynamic_symbol || shared) && (dyn_i->want_got || dyn_i->want_gotx)) |
| 2804 | || (dyn_i->want_ltoff_fptr && dyn_i->h && dyn_i->h->dynindx != -1)) |
| 2805 | ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela); |
| 2806 | if ((dynamic_symbol || shared) && dyn_i->want_tprel) |
| 2807 | ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela); |
| 2808 | if (dynamic_symbol && dyn_i->want_dtpmod) |
| 2809 | ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela); |
| 2810 | if (dynamic_symbol && dyn_i->want_dtprel) |
| 2811 | ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela); |
| 2812 | |
| 2813 | if (dyn_i->want_pltoff) |
| 2814 | { |
| 2815 | bfd_size_type t = 0; |
| 2816 | |
| 2817 | /* Dynamic symbols get one IPLT relocation. Local symbols in |
| 2818 | shared libraries get two REL relocations. Local symbols in |
| 2819 | main applications get nothing. */ |
| 2820 | if (dynamic_symbol) |
| 2821 | t = sizeof (ElfNN_External_Rela); |
| 2822 | else if (shared) |
| 2823 | t = 2 * sizeof (ElfNN_External_Rela); |
| 2824 | |
| 2825 | ia64_info->rel_pltoff_sec->_raw_size += t; |
| 2826 | } |
| 2827 | |
| 2828 | return TRUE; |
| 2829 | } |
| 2830 | |
| 2831 | static bfd_boolean |
| 2832 | elfNN_ia64_adjust_dynamic_symbol (info, h) |
| 2833 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 2834 | struct elf_link_hash_entry *h; |
| 2835 | { |
| 2836 | /* ??? Undefined symbols with PLT entries should be re-defined |
| 2837 | to be the PLT entry. */ |
| 2838 | |
| 2839 | /* If this is a weak symbol, and there is a real definition, the |
| 2840 | processor independent code will have arranged for us to see the |
| 2841 | real definition first, and we can just use the same value. */ |
| 2842 | if (h->weakdef != NULL) |
| 2843 | { |
| 2844 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined |
| 2845 | || h->weakdef->root.type == bfd_link_hash_defweak); |
| 2846 | h->root.u.def.section = h->weakdef->root.u.def.section; |
| 2847 | h->root.u.def.value = h->weakdef->root.u.def.value; |
| 2848 | return TRUE; |
| 2849 | } |
| 2850 | |
| 2851 | /* If this is a reference to a symbol defined by a dynamic object which |
| 2852 | is not a function, we might allocate the symbol in our .dynbss section |
| 2853 | and allocate a COPY dynamic relocation. |
| 2854 | |
| 2855 | But IA-64 code is canonically PIC, so as a rule we can avoid this sort |
| 2856 | of hackery. */ |
| 2857 | |
| 2858 | return TRUE; |
| 2859 | } |
| 2860 | |
| 2861 | static bfd_boolean |
| 2862 | elfNN_ia64_size_dynamic_sections (output_bfd, info) |
| 2863 | bfd *output_bfd; |
| 2864 | struct bfd_link_info *info; |
| 2865 | { |
| 2866 | struct elfNN_ia64_allocate_data data; |
| 2867 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 2868 | asection *sec; |
| 2869 | bfd *dynobj; |
| 2870 | bfd_boolean relplt = FALSE; |
| 2871 | |
| 2872 | dynobj = elf_hash_table(info)->dynobj; |
| 2873 | ia64_info = elfNN_ia64_hash_table (info); |
| 2874 | ia64_info->self_dtpmod_offset = (bfd_vma) -1; |
| 2875 | BFD_ASSERT(dynobj != NULL); |
| 2876 | data.info = info; |
| 2877 | |
| 2878 | /* Set the contents of the .interp section to the interpreter. */ |
| 2879 | if (ia64_info->root.dynamic_sections_created |
| 2880 | && !info->shared) |
| 2881 | { |
| 2882 | sec = bfd_get_section_by_name (dynobj, ".interp"); |
| 2883 | BFD_ASSERT (sec != NULL); |
| 2884 | sec->contents = (bfd_byte *) DYNAMIC_INTERPRETER (output_bfd); |
| 2885 | sec->_raw_size = strlen (DYNAMIC_INTERPRETER (output_bfd)) + 1; |
| 2886 | } |
| 2887 | |
| 2888 | /* Allocate the GOT entries. */ |
| 2889 | |
| 2890 | if (ia64_info->got_sec) |
| 2891 | { |
| 2892 | data.ofs = 0; |
| 2893 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data); |
| 2894 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data); |
| 2895 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data); |
| 2896 | ia64_info->got_sec->_raw_size = data.ofs; |
| 2897 | } |
| 2898 | |
| 2899 | /* Allocate the FPTR entries. */ |
| 2900 | |
| 2901 | if (ia64_info->fptr_sec) |
| 2902 | { |
| 2903 | data.ofs = 0; |
| 2904 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data); |
| 2905 | ia64_info->fptr_sec->_raw_size = data.ofs; |
| 2906 | } |
| 2907 | |
| 2908 | /* Now that we've seen all of the input files, we can decide which |
| 2909 | symbols need plt entries. Allocate the minimal PLT entries first. |
| 2910 | We do this even though dynamic_sections_created may be FALSE, because |
| 2911 | this has the side-effect of clearing want_plt and want_plt2. */ |
| 2912 | |
| 2913 | data.ofs = 0; |
| 2914 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data); |
| 2915 | |
| 2916 | ia64_info->minplt_entries = 0; |
| 2917 | if (data.ofs) |
| 2918 | { |
| 2919 | ia64_info->minplt_entries |
| 2920 | = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE; |
| 2921 | } |
| 2922 | |
| 2923 | /* Align the pointer for the plt2 entries. */ |
| 2924 | data.ofs = (data.ofs + 31) & (bfd_vma) -32; |
| 2925 | |
| 2926 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data); |
| 2927 | if (data.ofs != 0) |
| 2928 | { |
| 2929 | BFD_ASSERT (ia64_info->root.dynamic_sections_created); |
| 2930 | |
| 2931 | ia64_info->plt_sec->_raw_size = data.ofs; |
| 2932 | |
| 2933 | /* If we've got a .plt, we need some extra memory for the dynamic |
| 2934 | linker. We stuff these in .got.plt. */ |
| 2935 | sec = bfd_get_section_by_name (dynobj, ".got.plt"); |
| 2936 | sec->_raw_size = 8 * PLT_RESERVED_WORDS; |
| 2937 | } |
| 2938 | |
| 2939 | /* Allocate the PLTOFF entries. */ |
| 2940 | |
| 2941 | if (ia64_info->pltoff_sec) |
| 2942 | { |
| 2943 | data.ofs = 0; |
| 2944 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data); |
| 2945 | ia64_info->pltoff_sec->_raw_size = data.ofs; |
| 2946 | } |
| 2947 | |
| 2948 | if (ia64_info->root.dynamic_sections_created) |
| 2949 | { |
| 2950 | /* Allocate space for the dynamic relocations that turned out to be |
| 2951 | required. */ |
| 2952 | |
| 2953 | if (info->shared && ia64_info->self_dtpmod_offset != (bfd_vma) -1) |
| 2954 | ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela); |
| 2955 | elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data); |
| 2956 | } |
| 2957 | |
| 2958 | /* We have now determined the sizes of the various dynamic sections. |
| 2959 | Allocate memory for them. */ |
| 2960 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
| 2961 | { |
| 2962 | bfd_boolean strip; |
| 2963 | |
| 2964 | if (!(sec->flags & SEC_LINKER_CREATED)) |
| 2965 | continue; |
| 2966 | |
| 2967 | /* If we don't need this section, strip it from the output file. |
| 2968 | There were several sections primarily related to dynamic |
| 2969 | linking that must be create before the linker maps input |
| 2970 | sections to output sections. The linker does that before |
| 2971 | bfd_elf_size_dynamic_sections is called, and it is that |
| 2972 | function which decides whether anything needs to go into |
| 2973 | these sections. */ |
| 2974 | |
| 2975 | strip = (sec->_raw_size == 0); |
| 2976 | |
| 2977 | if (sec == ia64_info->got_sec) |
| 2978 | strip = FALSE; |
| 2979 | else if (sec == ia64_info->rel_got_sec) |
| 2980 | { |
| 2981 | if (strip) |
| 2982 | ia64_info->rel_got_sec = NULL; |
| 2983 | else |
| 2984 | /* We use the reloc_count field as a counter if we need to |
| 2985 | copy relocs into the output file. */ |
| 2986 | sec->reloc_count = 0; |
| 2987 | } |
| 2988 | else if (sec == ia64_info->fptr_sec) |
| 2989 | { |
| 2990 | if (strip) |
| 2991 | ia64_info->fptr_sec = NULL; |
| 2992 | } |
| 2993 | else if (sec == ia64_info->plt_sec) |
| 2994 | { |
| 2995 | if (strip) |
| 2996 | ia64_info->plt_sec = NULL; |
| 2997 | } |
| 2998 | else if (sec == ia64_info->pltoff_sec) |
| 2999 | { |
| 3000 | if (strip) |
| 3001 | ia64_info->pltoff_sec = NULL; |
| 3002 | } |
| 3003 | else if (sec == ia64_info->rel_pltoff_sec) |
| 3004 | { |
| 3005 | if (strip) |
| 3006 | ia64_info->rel_pltoff_sec = NULL; |
| 3007 | else |
| 3008 | { |
| 3009 | relplt = TRUE; |
| 3010 | /* We use the reloc_count field as a counter if we need to |
| 3011 | copy relocs into the output file. */ |
| 3012 | sec->reloc_count = 0; |
| 3013 | } |
| 3014 | } |
| 3015 | else |
| 3016 | { |
| 3017 | const char *name; |
| 3018 | |
| 3019 | /* It's OK to base decisions on the section name, because none |
| 3020 | of the dynobj section names depend upon the input files. */ |
| 3021 | name = bfd_get_section_name (dynobj, sec); |
| 3022 | |
| 3023 | if (strcmp (name, ".got.plt") == 0) |
| 3024 | strip = FALSE; |
| 3025 | else if (strncmp (name, ".rel", 4) == 0) |
| 3026 | { |
| 3027 | if (!strip) |
| 3028 | { |
| 3029 | /* We use the reloc_count field as a counter if we need to |
| 3030 | copy relocs into the output file. */ |
| 3031 | sec->reloc_count = 0; |
| 3032 | } |
| 3033 | } |
| 3034 | else |
| 3035 | continue; |
| 3036 | } |
| 3037 | |
| 3038 | if (strip) |
| 3039 | _bfd_strip_section_from_output (info, sec); |
| 3040 | else |
| 3041 | { |
| 3042 | /* Allocate memory for the section contents. */ |
| 3043 | sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->_raw_size); |
| 3044 | if (sec->contents == NULL && sec->_raw_size != 0) |
| 3045 | return FALSE; |
| 3046 | } |
| 3047 | } |
| 3048 | |
| 3049 | if (elf_hash_table (info)->dynamic_sections_created) |
| 3050 | { |
| 3051 | /* Add some entries to the .dynamic section. We fill in the values |
| 3052 | later (in finish_dynamic_sections) but we must add the entries now |
| 3053 | so that we get the correct size for the .dynamic section. */ |
| 3054 | |
| 3055 | if (!info->shared) |
| 3056 | { |
| 3057 | /* The DT_DEBUG entry is filled in by the dynamic linker and used |
| 3058 | by the debugger. */ |
| 3059 | #define add_dynamic_entry(TAG, VAL) \ |
| 3060 | bfd_elfNN_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) |
| 3061 | |
| 3062 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| 3063 | return FALSE; |
| 3064 | } |
| 3065 | |
| 3066 | if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0)) |
| 3067 | return FALSE; |
| 3068 | if (!add_dynamic_entry (DT_PLTGOT, 0)) |
| 3069 | return FALSE; |
| 3070 | |
| 3071 | if (relplt) |
| 3072 | { |
| 3073 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
| 3074 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) |
| 3075 | || !add_dynamic_entry (DT_JMPREL, 0)) |
| 3076 | return FALSE; |
| 3077 | } |
| 3078 | |
| 3079 | if (!add_dynamic_entry (DT_RELA, 0) |
| 3080 | || !add_dynamic_entry (DT_RELASZ, 0) |
| 3081 | || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela))) |
| 3082 | return FALSE; |
| 3083 | |
| 3084 | if (ia64_info->reltext) |
| 3085 | { |
| 3086 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| 3087 | return FALSE; |
| 3088 | info->flags |= DF_TEXTREL; |
| 3089 | } |
| 3090 | } |
| 3091 | |
| 3092 | /* ??? Perhaps force __gp local. */ |
| 3093 | |
| 3094 | return TRUE; |
| 3095 | } |
| 3096 | |
| 3097 | static bfd_reloc_status_type |
| 3098 | elfNN_ia64_install_value (abfd, hit_addr, v, r_type) |
| 3099 | bfd *abfd; |
| 3100 | bfd_byte *hit_addr; |
| 3101 | bfd_vma v; |
| 3102 | unsigned int r_type; |
| 3103 | { |
| 3104 | const struct ia64_operand *op; |
| 3105 | int bigendian = 0, shift = 0; |
| 3106 | bfd_vma t0, t1, insn, dword; |
| 3107 | enum ia64_opnd opnd; |
| 3108 | const char *err; |
| 3109 | size_t size = 8; |
| 3110 | #ifdef BFD_HOST_U_64_BIT |
| 3111 | BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v; |
| 3112 | #else |
| 3113 | bfd_vma val = v; |
| 3114 | #endif |
| 3115 | |
| 3116 | opnd = IA64_OPND_NIL; |
| 3117 | switch (r_type) |
| 3118 | { |
| 3119 | case R_IA64_NONE: |
| 3120 | case R_IA64_LDXMOV: |
| 3121 | return bfd_reloc_ok; |
| 3122 | |
| 3123 | /* Instruction relocations. */ |
| 3124 | |
| 3125 | case R_IA64_IMM14: |
| 3126 | case R_IA64_TPREL14: |
| 3127 | case R_IA64_DTPREL14: |
| 3128 | opnd = IA64_OPND_IMM14; |
| 3129 | break; |
| 3130 | |
| 3131 | case R_IA64_PCREL21F: opnd = IA64_OPND_TGT25; break; |
| 3132 | case R_IA64_PCREL21M: opnd = IA64_OPND_TGT25b; break; |
| 3133 | case R_IA64_PCREL60B: opnd = IA64_OPND_TGT64; break; |
| 3134 | case R_IA64_PCREL21B: |
| 3135 | case R_IA64_PCREL21BI: |
| 3136 | opnd = IA64_OPND_TGT25c; |
| 3137 | break; |
| 3138 | |
| 3139 | case R_IA64_IMM22: |
| 3140 | case R_IA64_GPREL22: |
| 3141 | case R_IA64_LTOFF22: |
| 3142 | case R_IA64_LTOFF22X: |
| 3143 | case R_IA64_PLTOFF22: |
| 3144 | case R_IA64_PCREL22: |
| 3145 | case R_IA64_LTOFF_FPTR22: |
| 3146 | case R_IA64_TPREL22: |
| 3147 | case R_IA64_DTPREL22: |
| 3148 | case R_IA64_LTOFF_TPREL22: |
| 3149 | case R_IA64_LTOFF_DTPMOD22: |
| 3150 | case R_IA64_LTOFF_DTPREL22: |
| 3151 | opnd = IA64_OPND_IMM22; |
| 3152 | break; |
| 3153 | |
| 3154 | case R_IA64_IMM64: |
| 3155 | case R_IA64_GPREL64I: |
| 3156 | case R_IA64_LTOFF64I: |
| 3157 | case R_IA64_PLTOFF64I: |
| 3158 | case R_IA64_PCREL64I: |
| 3159 | case R_IA64_FPTR64I: |
| 3160 | case R_IA64_LTOFF_FPTR64I: |
| 3161 | case R_IA64_TPREL64I: |
| 3162 | case R_IA64_DTPREL64I: |
| 3163 | opnd = IA64_OPND_IMMU64; |
| 3164 | break; |
| 3165 | |
| 3166 | /* Data relocations. */ |
| 3167 | |
| 3168 | case R_IA64_DIR32MSB: |
| 3169 | case R_IA64_GPREL32MSB: |
| 3170 | case R_IA64_FPTR32MSB: |
| 3171 | case R_IA64_PCREL32MSB: |
| 3172 | case R_IA64_LTOFF_FPTR32MSB: |
| 3173 | case R_IA64_SEGREL32MSB: |
| 3174 | case R_IA64_SECREL32MSB: |
| 3175 | case R_IA64_LTV32MSB: |
| 3176 | case R_IA64_DTPREL32MSB: |
| 3177 | size = 4; bigendian = 1; |
| 3178 | break; |
| 3179 | |
| 3180 | case R_IA64_DIR32LSB: |
| 3181 | case R_IA64_GPREL32LSB: |
| 3182 | case R_IA64_FPTR32LSB: |
| 3183 | case R_IA64_PCREL32LSB: |
| 3184 | case R_IA64_LTOFF_FPTR32LSB: |
| 3185 | case R_IA64_SEGREL32LSB: |
| 3186 | case R_IA64_SECREL32LSB: |
| 3187 | case R_IA64_LTV32LSB: |
| 3188 | case R_IA64_DTPREL32LSB: |
| 3189 | size = 4; bigendian = 0; |
| 3190 | break; |
| 3191 | |
| 3192 | case R_IA64_DIR64MSB: |
| 3193 | case R_IA64_GPREL64MSB: |
| 3194 | case R_IA64_PLTOFF64MSB: |
| 3195 | case R_IA64_FPTR64MSB: |
| 3196 | case R_IA64_PCREL64MSB: |
| 3197 | case R_IA64_LTOFF_FPTR64MSB: |
| 3198 | case R_IA64_SEGREL64MSB: |
| 3199 | case R_IA64_SECREL64MSB: |
| 3200 | case R_IA64_LTV64MSB: |
| 3201 | case R_IA64_TPREL64MSB: |
| 3202 | case R_IA64_DTPMOD64MSB: |
| 3203 | case R_IA64_DTPREL64MSB: |
| 3204 | size = 8; bigendian = 1; |
| 3205 | break; |
| 3206 | |
| 3207 | case R_IA64_DIR64LSB: |
| 3208 | case R_IA64_GPREL64LSB: |
| 3209 | case R_IA64_PLTOFF64LSB: |
| 3210 | case R_IA64_FPTR64LSB: |
| 3211 | case R_IA64_PCREL64LSB: |
| 3212 | case R_IA64_LTOFF_FPTR64LSB: |
| 3213 | case R_IA64_SEGREL64LSB: |
| 3214 | case R_IA64_SECREL64LSB: |
| 3215 | case R_IA64_LTV64LSB: |
| 3216 | case R_IA64_TPREL64LSB: |
| 3217 | case R_IA64_DTPMOD64LSB: |
| 3218 | case R_IA64_DTPREL64LSB: |
| 3219 | size = 8; bigendian = 0; |
| 3220 | break; |
| 3221 | |
| 3222 | /* Unsupported / Dynamic relocations. */ |
| 3223 | default: |
| 3224 | return bfd_reloc_notsupported; |
| 3225 | } |
| 3226 | |
| 3227 | switch (opnd) |
| 3228 | { |
| 3229 | case IA64_OPND_IMMU64: |
| 3230 | hit_addr -= (long) hit_addr & 0x3; |
| 3231 | t0 = bfd_get_64 (abfd, hit_addr); |
| 3232 | t1 = bfd_get_64 (abfd, hit_addr + 8); |
| 3233 | |
| 3234 | /* tmpl/s: bits 0.. 5 in t0 |
| 3235 | slot 0: bits 5..45 in t0 |
| 3236 | slot 1: bits 46..63 in t0, bits 0..22 in t1 |
| 3237 | slot 2: bits 23..63 in t1 */ |
| 3238 | |
| 3239 | /* First, clear the bits that form the 64 bit constant. */ |
| 3240 | t0 &= ~(0x3ffffLL << 46); |
| 3241 | t1 &= ~(0x7fffffLL |
| 3242 | | (( (0x07fLL << 13) | (0x1ffLL << 27) |
| 3243 | | (0x01fLL << 22) | (0x001LL << 21) |
| 3244 | | (0x001LL << 36)) << 23)); |
| 3245 | |
| 3246 | t0 |= ((val >> 22) & 0x03ffffLL) << 46; /* 18 lsbs of imm41 */ |
| 3247 | t1 |= ((val >> 40) & 0x7fffffLL) << 0; /* 23 msbs of imm41 */ |
| 3248 | t1 |= ( (((val >> 0) & 0x07f) << 13) /* imm7b */ |
| 3249 | | (((val >> 7) & 0x1ff) << 27) /* imm9d */ |
| 3250 | | (((val >> 16) & 0x01f) << 22) /* imm5c */ |
| 3251 | | (((val >> 21) & 0x001) << 21) /* ic */ |
| 3252 | | (((val >> 63) & 0x001) << 36)) << 23; /* i */ |
| 3253 | |
| 3254 | bfd_put_64 (abfd, t0, hit_addr); |
| 3255 | bfd_put_64 (abfd, t1, hit_addr + 8); |
| 3256 | break; |
| 3257 | |
| 3258 | case IA64_OPND_TGT64: |
| 3259 | hit_addr -= (long) hit_addr & 0x3; |
| 3260 | t0 = bfd_get_64 (abfd, hit_addr); |
| 3261 | t1 = bfd_get_64 (abfd, hit_addr + 8); |
| 3262 | |
| 3263 | /* tmpl/s: bits 0.. 5 in t0 |
| 3264 | slot 0: bits 5..45 in t0 |
| 3265 | slot 1: bits 46..63 in t0, bits 0..22 in t1 |
| 3266 | slot 2: bits 23..63 in t1 */ |
| 3267 | |
| 3268 | /* First, clear the bits that form the 64 bit constant. */ |
| 3269 | t0 &= ~(0x3ffffLL << 46); |
| 3270 | t1 &= ~(0x7fffffLL |
| 3271 | | ((1LL << 36 | 0xfffffLL << 13) << 23)); |
| 3272 | |
| 3273 | val >>= 4; |
| 3274 | t0 |= ((val >> 20) & 0xffffLL) << 2 << 46; /* 16 lsbs of imm39 */ |
| 3275 | t1 |= ((val >> 36) & 0x7fffffLL) << 0; /* 23 msbs of imm39 */ |
| 3276 | t1 |= ((((val >> 0) & 0xfffffLL) << 13) /* imm20b */ |
| 3277 | | (((val >> 59) & 0x1LL) << 36)) << 23; /* i */ |
| 3278 | |
| 3279 | bfd_put_64 (abfd, t0, hit_addr); |
| 3280 | bfd_put_64 (abfd, t1, hit_addr + 8); |
| 3281 | break; |
| 3282 | |
| 3283 | default: |
| 3284 | switch ((long) hit_addr & 0x3) |
| 3285 | { |
| 3286 | case 0: shift = 5; break; |
| 3287 | case 1: shift = 14; hit_addr += 3; break; |
| 3288 | case 2: shift = 23; hit_addr += 6; break; |
| 3289 | case 3: return bfd_reloc_notsupported; /* shouldn't happen... */ |
| 3290 | } |
| 3291 | dword = bfd_get_64 (abfd, hit_addr); |
| 3292 | insn = (dword >> shift) & 0x1ffffffffffLL; |
| 3293 | |
| 3294 | op = elf64_ia64_operands + opnd; |
| 3295 | err = (*op->insert) (op, val, (ia64_insn *)& insn); |
| 3296 | if (err) |
| 3297 | return bfd_reloc_overflow; |
| 3298 | |
| 3299 | dword &= ~(0x1ffffffffffLL << shift); |
| 3300 | dword |= (insn << shift); |
| 3301 | bfd_put_64 (abfd, dword, hit_addr); |
| 3302 | break; |
| 3303 | |
| 3304 | case IA64_OPND_NIL: |
| 3305 | /* A data relocation. */ |
| 3306 | if (bigendian) |
| 3307 | if (size == 4) |
| 3308 | bfd_putb32 (val, hit_addr); |
| 3309 | else |
| 3310 | bfd_putb64 (val, hit_addr); |
| 3311 | else |
| 3312 | if (size == 4) |
| 3313 | bfd_putl32 (val, hit_addr); |
| 3314 | else |
| 3315 | bfd_putl64 (val, hit_addr); |
| 3316 | break; |
| 3317 | } |
| 3318 | |
| 3319 | return bfd_reloc_ok; |
| 3320 | } |
| 3321 | |
| 3322 | static void |
| 3323 | elfNN_ia64_install_dyn_reloc (abfd, info, sec, srel, offset, type, |
| 3324 | dynindx, addend) |
| 3325 | bfd *abfd; |
| 3326 | struct bfd_link_info *info; |
| 3327 | asection *sec; |
| 3328 | asection *srel; |
| 3329 | bfd_vma offset; |
| 3330 | unsigned int type; |
| 3331 | long dynindx; |
| 3332 | bfd_vma addend; |
| 3333 | { |
| 3334 | Elf_Internal_Rela outrel; |
| 3335 | bfd_byte *loc; |
| 3336 | |
| 3337 | BFD_ASSERT (dynindx != -1); |
| 3338 | outrel.r_info = ELFNN_R_INFO (dynindx, type); |
| 3339 | outrel.r_addend = addend; |
| 3340 | outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset); |
| 3341 | if (outrel.r_offset >= (bfd_vma) -2) |
| 3342 | { |
| 3343 | /* Run for the hills. We shouldn't be outputting a relocation |
| 3344 | for this. So do what everyone else does and output a no-op. */ |
| 3345 | outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE); |
| 3346 | outrel.r_addend = 0; |
| 3347 | outrel.r_offset = 0; |
| 3348 | } |
| 3349 | else |
| 3350 | outrel.r_offset += sec->output_section->vma + sec->output_offset; |
| 3351 | |
| 3352 | loc = srel->contents; |
| 3353 | loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela); |
| 3354 | bfd_elfNN_swap_reloca_out (abfd, &outrel, loc); |
| 3355 | BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count |
| 3356 | <= srel->_cooked_size); |
| 3357 | } |
| 3358 | |
| 3359 | /* Store an entry for target address TARGET_ADDR in the linkage table |
| 3360 | and return the gp-relative address of the linkage table entry. */ |
| 3361 | |
| 3362 | static bfd_vma |
| 3363 | set_got_entry (abfd, info, dyn_i, dynindx, addend, value, dyn_r_type) |
| 3364 | bfd *abfd; |
| 3365 | struct bfd_link_info *info; |
| 3366 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 3367 | long dynindx; |
| 3368 | bfd_vma addend; |
| 3369 | bfd_vma value; |
| 3370 | unsigned int dyn_r_type; |
| 3371 | { |
| 3372 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 3373 | asection *got_sec; |
| 3374 | bfd_boolean done; |
| 3375 | bfd_vma got_offset; |
| 3376 | |
| 3377 | ia64_info = elfNN_ia64_hash_table (info); |
| 3378 | got_sec = ia64_info->got_sec; |
| 3379 | |
| 3380 | switch (dyn_r_type) |
| 3381 | { |
| 3382 | case R_IA64_TPREL64LSB: |
| 3383 | done = dyn_i->tprel_done; |
| 3384 | dyn_i->tprel_done = TRUE; |
| 3385 | got_offset = dyn_i->tprel_offset; |
| 3386 | break; |
| 3387 | case R_IA64_DTPMOD64LSB: |
| 3388 | if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset) |
| 3389 | { |
| 3390 | done = dyn_i->dtpmod_done; |
| 3391 | dyn_i->dtpmod_done = TRUE; |
| 3392 | } |
| 3393 | else |
| 3394 | { |
| 3395 | done = ia64_info->self_dtpmod_done; |
| 3396 | ia64_info->self_dtpmod_done = TRUE; |
| 3397 | dynindx = 0; |
| 3398 | } |
| 3399 | got_offset = dyn_i->dtpmod_offset; |
| 3400 | break; |
| 3401 | case R_IA64_DTPREL64LSB: |
| 3402 | done = dyn_i->dtprel_done; |
| 3403 | dyn_i->dtprel_done = TRUE; |
| 3404 | got_offset = dyn_i->dtprel_offset; |
| 3405 | break; |
| 3406 | default: |
| 3407 | done = dyn_i->got_done; |
| 3408 | dyn_i->got_done = TRUE; |
| 3409 | got_offset = dyn_i->got_offset; |
| 3410 | break; |
| 3411 | } |
| 3412 | |
| 3413 | BFD_ASSERT ((got_offset & 7) == 0); |
| 3414 | |
| 3415 | if (! done) |
| 3416 | { |
| 3417 | /* Store the target address in the linkage table entry. */ |
| 3418 | bfd_put_64 (abfd, value, got_sec->contents + got_offset); |
| 3419 | |
| 3420 | /* Install a dynamic relocation if needed. */ |
| 3421 | if ((info->shared && dyn_r_type != R_IA64_DTPREL64LSB) |
| 3422 | || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info) |
| 3423 | || elfNN_ia64_aix_vec (abfd->xvec) |
| 3424 | || (dynindx != -1 && dyn_r_type == R_IA64_FPTR64LSB)) |
| 3425 | { |
| 3426 | if (dynindx == -1 |
| 3427 | && dyn_r_type != R_IA64_TPREL64LSB |
| 3428 | && dyn_r_type != R_IA64_DTPMOD64LSB |
| 3429 | && dyn_r_type != R_IA64_DTPREL64LSB) |
| 3430 | { |
| 3431 | dyn_r_type = R_IA64_REL64LSB; |
| 3432 | dynindx = 0; |
| 3433 | addend = value; |
| 3434 | } |
| 3435 | |
| 3436 | if (bfd_big_endian (abfd)) |
| 3437 | { |
| 3438 | switch (dyn_r_type) |
| 3439 | { |
| 3440 | case R_IA64_REL64LSB: |
| 3441 | dyn_r_type = R_IA64_REL64MSB; |
| 3442 | break; |
| 3443 | case R_IA64_DIR64LSB: |
| 3444 | dyn_r_type = R_IA64_DIR64MSB; |
| 3445 | break; |
| 3446 | case R_IA64_FPTR64LSB: |
| 3447 | dyn_r_type = R_IA64_FPTR64MSB; |
| 3448 | break; |
| 3449 | case R_IA64_TPREL64LSB: |
| 3450 | dyn_r_type = R_IA64_TPREL64MSB; |
| 3451 | break; |
| 3452 | case R_IA64_DTPMOD64LSB: |
| 3453 | dyn_r_type = R_IA64_DTPMOD64MSB; |
| 3454 | break; |
| 3455 | case R_IA64_DTPREL64LSB: |
| 3456 | dyn_r_type = R_IA64_DTPREL64MSB; |
| 3457 | break; |
| 3458 | default: |
| 3459 | BFD_ASSERT (FALSE); |
| 3460 | break; |
| 3461 | } |
| 3462 | } |
| 3463 | |
| 3464 | elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec, |
| 3465 | ia64_info->rel_got_sec, |
| 3466 | got_offset, dyn_r_type, |
| 3467 | dynindx, addend); |
| 3468 | } |
| 3469 | } |
| 3470 | |
| 3471 | /* Return the address of the linkage table entry. */ |
| 3472 | value = (got_sec->output_section->vma |
| 3473 | + got_sec->output_offset |
| 3474 | + got_offset); |
| 3475 | |
| 3476 | return value; |
| 3477 | } |
| 3478 | |
| 3479 | /* Fill in a function descriptor consisting of the function's code |
| 3480 | address and its global pointer. Return the descriptor's address. */ |
| 3481 | |
| 3482 | static bfd_vma |
| 3483 | set_fptr_entry (abfd, info, dyn_i, value) |
| 3484 | bfd *abfd; |
| 3485 | struct bfd_link_info *info; |
| 3486 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 3487 | bfd_vma value; |
| 3488 | { |
| 3489 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 3490 | asection *fptr_sec; |
| 3491 | |
| 3492 | ia64_info = elfNN_ia64_hash_table (info); |
| 3493 | fptr_sec = ia64_info->fptr_sec; |
| 3494 | |
| 3495 | if (!dyn_i->fptr_done) |
| 3496 | { |
| 3497 | dyn_i->fptr_done = 1; |
| 3498 | |
| 3499 | /* Fill in the function descriptor. */ |
| 3500 | bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset); |
| 3501 | bfd_put_64 (abfd, _bfd_get_gp_value (abfd), |
| 3502 | fptr_sec->contents + dyn_i->fptr_offset + 8); |
| 3503 | } |
| 3504 | |
| 3505 | /* Return the descriptor's address. */ |
| 3506 | value = (fptr_sec->output_section->vma |
| 3507 | + fptr_sec->output_offset |
| 3508 | + dyn_i->fptr_offset); |
| 3509 | |
| 3510 | return value; |
| 3511 | } |
| 3512 | |
| 3513 | /* Fill in a PLTOFF entry consisting of the function's code address |
| 3514 | and its global pointer. Return the descriptor's address. */ |
| 3515 | |
| 3516 | static bfd_vma |
| 3517 | set_pltoff_entry (abfd, info, dyn_i, value, is_plt) |
| 3518 | bfd *abfd; |
| 3519 | struct bfd_link_info *info; |
| 3520 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 3521 | bfd_vma value; |
| 3522 | bfd_boolean is_plt; |
| 3523 | { |
| 3524 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 3525 | asection *pltoff_sec; |
| 3526 | |
| 3527 | ia64_info = elfNN_ia64_hash_table (info); |
| 3528 | pltoff_sec = ia64_info->pltoff_sec; |
| 3529 | |
| 3530 | /* Don't do anything if this symbol uses a real PLT entry. In |
| 3531 | that case, we'll fill this in during finish_dynamic_symbol. */ |
| 3532 | if ((! dyn_i->want_plt || is_plt) |
| 3533 | && !dyn_i->pltoff_done) |
| 3534 | { |
| 3535 | bfd_vma gp = _bfd_get_gp_value (abfd); |
| 3536 | |
| 3537 | /* Fill in the function descriptor. */ |
| 3538 | bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset); |
| 3539 | bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8); |
| 3540 | |
| 3541 | /* Install dynamic relocations if needed. */ |
| 3542 | if (!is_plt && info->shared) |
| 3543 | { |
| 3544 | unsigned int dyn_r_type; |
| 3545 | |
| 3546 | if (bfd_big_endian (abfd)) |
| 3547 | dyn_r_type = R_IA64_REL64MSB; |
| 3548 | else |
| 3549 | dyn_r_type = R_IA64_REL64LSB; |
| 3550 | |
| 3551 | elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec, |
| 3552 | ia64_info->rel_pltoff_sec, |
| 3553 | dyn_i->pltoff_offset, |
| 3554 | dyn_r_type, 0, value); |
| 3555 | elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec, |
| 3556 | ia64_info->rel_pltoff_sec, |
| 3557 | dyn_i->pltoff_offset + 8, |
| 3558 | dyn_r_type, 0, gp); |
| 3559 | } |
| 3560 | |
| 3561 | dyn_i->pltoff_done = 1; |
| 3562 | } |
| 3563 | |
| 3564 | /* Return the descriptor's address. */ |
| 3565 | value = (pltoff_sec->output_section->vma |
| 3566 | + pltoff_sec->output_offset |
| 3567 | + dyn_i->pltoff_offset); |
| 3568 | |
| 3569 | return value; |
| 3570 | } |
| 3571 | |
| 3572 | /* Return the base VMA address which should be subtracted from real addresses |
| 3573 | when resolving @tprel() relocation. |
| 3574 | Main program TLS (whose template starts at PT_TLS p_vaddr) |
| 3575 | is assigned offset round(16, PT_TLS p_align). */ |
| 3576 | |
| 3577 | static bfd_vma |
| 3578 | elfNN_ia64_tprel_base (info) |
| 3579 | struct bfd_link_info *info; |
| 3580 | { |
| 3581 | struct elf_link_tls_segment *tls_segment |
| 3582 | = elf_hash_table (info)->tls_segment; |
| 3583 | |
| 3584 | BFD_ASSERT (tls_segment != NULL); |
| 3585 | return (tls_segment->start |
| 3586 | - align_power ((bfd_vma) 16, tls_segment->align)); |
| 3587 | } |
| 3588 | |
| 3589 | /* Return the base VMA address which should be subtracted from real addresses |
| 3590 | when resolving @dtprel() relocation. |
| 3591 | This is PT_TLS segment p_vaddr. */ |
| 3592 | |
| 3593 | static bfd_vma |
| 3594 | elfNN_ia64_dtprel_base (info) |
| 3595 | struct bfd_link_info *info; |
| 3596 | { |
| 3597 | BFD_ASSERT (elf_hash_table (info)->tls_segment != NULL); |
| 3598 | return elf_hash_table (info)->tls_segment->start; |
| 3599 | } |
| 3600 | |
| 3601 | /* Called through qsort to sort the .IA_64.unwind section during a |
| 3602 | non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd |
| 3603 | to the output bfd so we can do proper endianness frobbing. */ |
| 3604 | |
| 3605 | static bfd *elfNN_ia64_unwind_entry_compare_bfd; |
| 3606 | |
| 3607 | static int |
| 3608 | elfNN_ia64_unwind_entry_compare (a, b) |
| 3609 | const PTR a; |
| 3610 | const PTR b; |
| 3611 | { |
| 3612 | bfd_vma av, bv; |
| 3613 | |
| 3614 | av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a); |
| 3615 | bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b); |
| 3616 | |
| 3617 | return (av < bv ? -1 : av > bv ? 1 : 0); |
| 3618 | } |
| 3619 | |
| 3620 | /* Make sure we've got ourselves a nice fat __gp value. */ |
| 3621 | static bfd_boolean |
| 3622 | elfNN_ia64_choose_gp (abfd, info) |
| 3623 | bfd *abfd; |
| 3624 | struct bfd_link_info *info; |
| 3625 | { |
| 3626 | bfd_vma min_vma = (bfd_vma) -1, max_vma = 0; |
| 3627 | bfd_vma min_short_vma = min_vma, max_short_vma = 0; |
| 3628 | struct elf_link_hash_entry *gp; |
| 3629 | bfd_vma gp_val; |
| 3630 | asection *os; |
| 3631 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 3632 | |
| 3633 | ia64_info = elfNN_ia64_hash_table (info); |
| 3634 | |
| 3635 | /* Find the min and max vma of all sections marked short. Also collect |
| 3636 | min and max vma of any type, for use in selecting a nice gp. */ |
| 3637 | for (os = abfd->sections; os ; os = os->next) |
| 3638 | { |
| 3639 | bfd_vma lo, hi; |
| 3640 | |
| 3641 | if ((os->flags & SEC_ALLOC) == 0) |
| 3642 | continue; |
| 3643 | |
| 3644 | lo = os->vma; |
| 3645 | hi = os->vma + os->_raw_size; |
| 3646 | if (hi < lo) |
| 3647 | hi = (bfd_vma) -1; |
| 3648 | |
| 3649 | if (min_vma > lo) |
| 3650 | min_vma = lo; |
| 3651 | if (max_vma < hi) |
| 3652 | max_vma = hi; |
| 3653 | if (os->flags & SEC_SMALL_DATA) |
| 3654 | { |
| 3655 | if (min_short_vma > lo) |
| 3656 | min_short_vma = lo; |
| 3657 | if (max_short_vma < hi) |
| 3658 | max_short_vma = hi; |
| 3659 | } |
| 3660 | } |
| 3661 | |
| 3662 | /* See if the user wants to force a value. */ |
| 3663 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE, |
| 3664 | FALSE, FALSE); |
| 3665 | |
| 3666 | if (gp |
| 3667 | && (gp->root.type == bfd_link_hash_defined |
| 3668 | || gp->root.type == bfd_link_hash_defweak)) |
| 3669 | { |
| 3670 | asection *gp_sec = gp->root.u.def.section; |
| 3671 | gp_val = (gp->root.u.def.value |
| 3672 | + gp_sec->output_section->vma |
| 3673 | + gp_sec->output_offset); |
| 3674 | } |
| 3675 | else |
| 3676 | { |
| 3677 | /* Pick a sensible value. */ |
| 3678 | |
| 3679 | asection *got_sec = ia64_info->got_sec; |
| 3680 | |
| 3681 | /* Start with just the address of the .got. */ |
| 3682 | if (got_sec) |
| 3683 | gp_val = got_sec->output_section->vma; |
| 3684 | else if (max_short_vma != 0) |
| 3685 | gp_val = min_short_vma; |
| 3686 | else |
| 3687 | gp_val = min_vma; |
| 3688 | |
| 3689 | /* If it is possible to address the entire image, but we |
| 3690 | don't with the choice above, adjust. */ |
| 3691 | if (max_vma - min_vma < 0x400000 |
| 3692 | && max_vma - gp_val <= 0x200000 |
| 3693 | && gp_val - min_vma > 0x200000) |
| 3694 | gp_val = min_vma + 0x200000; |
| 3695 | else if (max_short_vma != 0) |
| 3696 | { |
| 3697 | /* If we don't cover all the short data, adjust. */ |
| 3698 | if (max_short_vma - gp_val >= 0x200000) |
| 3699 | gp_val = min_short_vma + 0x200000; |
| 3700 | |
| 3701 | /* If we're addressing stuff past the end, adjust back. */ |
| 3702 | if (gp_val > max_vma) |
| 3703 | gp_val = max_vma - 0x200000 + 8; |
| 3704 | } |
| 3705 | } |
| 3706 | |
| 3707 | /* Validate whether all SHF_IA_64_SHORT sections are within |
| 3708 | range of the chosen GP. */ |
| 3709 | |
| 3710 | if (max_short_vma != 0) |
| 3711 | { |
| 3712 | if (max_short_vma - min_short_vma >= 0x400000) |
| 3713 | { |
| 3714 | (*_bfd_error_handler) |
| 3715 | (_("%s: short data segment overflowed (0x%lx >= 0x400000)"), |
| 3716 | bfd_get_filename (abfd), |
| 3717 | (unsigned long) (max_short_vma - min_short_vma)); |
| 3718 | return FALSE; |
| 3719 | } |
| 3720 | else if ((gp_val > min_short_vma |
| 3721 | && gp_val - min_short_vma > 0x200000) |
| 3722 | || (gp_val < max_short_vma |
| 3723 | && max_short_vma - gp_val >= 0x200000)) |
| 3724 | { |
| 3725 | (*_bfd_error_handler) |
| 3726 | (_("%s: __gp does not cover short data segment"), |
| 3727 | bfd_get_filename (abfd)); |
| 3728 | return FALSE; |
| 3729 | } |
| 3730 | } |
| 3731 | |
| 3732 | _bfd_set_gp_value (abfd, gp_val); |
| 3733 | |
| 3734 | return TRUE; |
| 3735 | } |
| 3736 | |
| 3737 | static bfd_boolean |
| 3738 | elfNN_ia64_final_link (abfd, info) |
| 3739 | bfd *abfd; |
| 3740 | struct bfd_link_info *info; |
| 3741 | { |
| 3742 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 3743 | asection *unwind_output_sec; |
| 3744 | |
| 3745 | ia64_info = elfNN_ia64_hash_table (info); |
| 3746 | |
| 3747 | /* Make sure we've got ourselves a nice fat __gp value. */ |
| 3748 | if (!info->relocateable) |
| 3749 | { |
| 3750 | bfd_vma gp_val = _bfd_get_gp_value (abfd); |
| 3751 | struct elf_link_hash_entry *gp; |
| 3752 | |
| 3753 | if (gp_val == 0) |
| 3754 | { |
| 3755 | if (! elfNN_ia64_choose_gp (abfd, info)) |
| 3756 | return FALSE; |
| 3757 | gp_val = _bfd_get_gp_value (abfd); |
| 3758 | } |
| 3759 | |
| 3760 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE, |
| 3761 | FALSE, FALSE); |
| 3762 | if (gp) |
| 3763 | { |
| 3764 | gp->root.type = bfd_link_hash_defined; |
| 3765 | gp->root.u.def.value = gp_val; |
| 3766 | gp->root.u.def.section = bfd_abs_section_ptr; |
| 3767 | } |
| 3768 | } |
| 3769 | |
| 3770 | /* If we're producing a final executable, we need to sort the contents |
| 3771 | of the .IA_64.unwind section. Force this section to be relocated |
| 3772 | into memory rather than written immediately to the output file. */ |
| 3773 | unwind_output_sec = NULL; |
| 3774 | if (!info->relocateable) |
| 3775 | { |
| 3776 | asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind); |
| 3777 | if (s) |
| 3778 | { |
| 3779 | unwind_output_sec = s->output_section; |
| 3780 | unwind_output_sec->contents |
| 3781 | = bfd_malloc (unwind_output_sec->_raw_size); |
| 3782 | if (unwind_output_sec->contents == NULL) |
| 3783 | return FALSE; |
| 3784 | } |
| 3785 | } |
| 3786 | |
| 3787 | /* Invoke the regular ELF backend linker to do all the work. */ |
| 3788 | if (!bfd_elfNN_bfd_final_link (abfd, info)) |
| 3789 | return FALSE; |
| 3790 | |
| 3791 | if (unwind_output_sec) |
| 3792 | { |
| 3793 | elfNN_ia64_unwind_entry_compare_bfd = abfd; |
| 3794 | qsort (unwind_output_sec->contents, |
| 3795 | (size_t) (unwind_output_sec->_raw_size / 24), |
| 3796 | 24, |
| 3797 | elfNN_ia64_unwind_entry_compare); |
| 3798 | |
| 3799 | if (! bfd_set_section_contents (abfd, unwind_output_sec, |
| 3800 | unwind_output_sec->contents, (bfd_vma) 0, |
| 3801 | unwind_output_sec->_raw_size)) |
| 3802 | return FALSE; |
| 3803 | } |
| 3804 | |
| 3805 | return TRUE; |
| 3806 | } |
| 3807 | |
| 3808 | static bfd_boolean |
| 3809 | elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section, |
| 3810 | contents, relocs, local_syms, local_sections) |
| 3811 | bfd *output_bfd; |
| 3812 | struct bfd_link_info *info; |
| 3813 | bfd *input_bfd; |
| 3814 | asection *input_section; |
| 3815 | bfd_byte *contents; |
| 3816 | Elf_Internal_Rela *relocs; |
| 3817 | Elf_Internal_Sym *local_syms; |
| 3818 | asection **local_sections; |
| 3819 | { |
| 3820 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 3821 | Elf_Internal_Shdr *symtab_hdr; |
| 3822 | Elf_Internal_Rela *rel; |
| 3823 | Elf_Internal_Rela *relend; |
| 3824 | asection *srel; |
| 3825 | bfd_boolean ret_val = TRUE; /* for non-fatal errors */ |
| 3826 | bfd_vma gp_val; |
| 3827 | |
| 3828 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
| 3829 | ia64_info = elfNN_ia64_hash_table (info); |
| 3830 | |
| 3831 | /* Infect various flags from the input section to the output section. */ |
| 3832 | if (info->relocateable) |
| 3833 | { |
| 3834 | bfd_vma flags; |
| 3835 | |
| 3836 | flags = elf_section_data(input_section)->this_hdr.sh_flags; |
| 3837 | flags &= SHF_IA_64_NORECOV; |
| 3838 | |
| 3839 | elf_section_data(input_section->output_section) |
| 3840 | ->this_hdr.sh_flags |= flags; |
| 3841 | return TRUE; |
| 3842 | } |
| 3843 | |
| 3844 | gp_val = _bfd_get_gp_value (output_bfd); |
| 3845 | srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE); |
| 3846 | |
| 3847 | rel = relocs; |
| 3848 | relend = relocs + input_section->reloc_count; |
| 3849 | for (; rel < relend; ++rel) |
| 3850 | { |
| 3851 | struct elf_link_hash_entry *h; |
| 3852 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 3853 | bfd_reloc_status_type r; |
| 3854 | reloc_howto_type *howto; |
| 3855 | unsigned long r_symndx; |
| 3856 | Elf_Internal_Sym *sym; |
| 3857 | unsigned int r_type; |
| 3858 | bfd_vma value; |
| 3859 | asection *sym_sec; |
| 3860 | bfd_byte *hit_addr; |
| 3861 | bfd_boolean dynamic_symbol_p; |
| 3862 | bfd_boolean undef_weak_ref; |
| 3863 | |
| 3864 | r_type = ELFNN_R_TYPE (rel->r_info); |
| 3865 | if (r_type > R_IA64_MAX_RELOC_CODE) |
| 3866 | { |
| 3867 | (*_bfd_error_handler) |
| 3868 | (_("%s: unknown relocation type %d"), |
| 3869 | bfd_archive_filename (input_bfd), (int)r_type); |
| 3870 | bfd_set_error (bfd_error_bad_value); |
| 3871 | ret_val = FALSE; |
| 3872 | continue; |
| 3873 | } |
| 3874 | |
| 3875 | howto = lookup_howto (r_type); |
| 3876 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| 3877 | h = NULL; |
| 3878 | sym = NULL; |
| 3879 | sym_sec = NULL; |
| 3880 | undef_weak_ref = FALSE; |
| 3881 | |
| 3882 | if (r_symndx < symtab_hdr->sh_info) |
| 3883 | { |
| 3884 | /* Reloc against local symbol. */ |
| 3885 | sym = local_syms + r_symndx; |
| 3886 | sym_sec = local_sections[r_symndx]; |
| 3887 | value = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel); |
| 3888 | if ((sym_sec->flags & SEC_MERGE) |
| 3889 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
| 3890 | && sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE) |
| 3891 | { |
| 3892 | struct elfNN_ia64_local_hash_entry *loc_h; |
| 3893 | |
| 3894 | loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE); |
| 3895 | if (loc_h && ! loc_h->sec_merge_done) |
| 3896 | { |
| 3897 | struct elfNN_ia64_dyn_sym_info *dynent; |
| 3898 | asection *msec; |
| 3899 | |
| 3900 | for (dynent = loc_h->info; dynent; dynent = dynent->next) |
| 3901 | { |
| 3902 | msec = sym_sec; |
| 3903 | dynent->addend = |
| 3904 | _bfd_merged_section_offset (output_bfd, &msec, |
| 3905 | elf_section_data (msec)-> |
| 3906 | sec_info, |
| 3907 | sym->st_value |
| 3908 | + dynent->addend, |
| 3909 | (bfd_vma) 0); |
| 3910 | dynent->addend -= sym->st_value; |
| 3911 | dynent->addend += msec->output_section->vma |
| 3912 | + msec->output_offset |
| 3913 | - sym_sec->output_section->vma |
| 3914 | - sym_sec->output_offset; |
| 3915 | } |
| 3916 | loc_h->sec_merge_done = 1; |
| 3917 | } |
| 3918 | } |
| 3919 | } |
| 3920 | else |
| 3921 | { |
| 3922 | long indx; |
| 3923 | |
| 3924 | /* Reloc against global symbol. */ |
| 3925 | indx = r_symndx - symtab_hdr->sh_info; |
| 3926 | h = elf_sym_hashes (input_bfd)[indx]; |
| 3927 | while (h->root.type == bfd_link_hash_indirect |
| 3928 | || h->root.type == bfd_link_hash_warning) |
| 3929 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 3930 | |
| 3931 | value = 0; |
| 3932 | if (h->root.type == bfd_link_hash_defined |
| 3933 | || h->root.type == bfd_link_hash_defweak) |
| 3934 | { |
| 3935 | sym_sec = h->root.u.def.section; |
| 3936 | |
| 3937 | /* Detect the cases that sym_sec->output_section is |
| 3938 | expected to be NULL -- all cases in which the symbol |
| 3939 | is defined in another shared module. This includes |
| 3940 | PLT relocs for which we've created a PLT entry and |
| 3941 | other relocs for which we're prepared to create |
| 3942 | dynamic relocations. */ |
| 3943 | /* ??? Just accept it NULL and continue. */ |
| 3944 | |
| 3945 | if (sym_sec->output_section != NULL) |
| 3946 | { |
| 3947 | value = (h->root.u.def.value |
| 3948 | + sym_sec->output_section->vma |
| 3949 | + sym_sec->output_offset); |
| 3950 | } |
| 3951 | } |
| 3952 | else if (h->root.type == bfd_link_hash_undefweak) |
| 3953 | undef_weak_ref = TRUE; |
| 3954 | else if (info->shared |
| 3955 | && !info->no_undefined |
| 3956 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
| 3957 | ; |
| 3958 | else |
| 3959 | { |
| 3960 | if (! ((*info->callbacks->undefined_symbol) |
| 3961 | (info, h->root.root.string, input_bfd, |
| 3962 | input_section, rel->r_offset, |
| 3963 | (!info->shared || info->no_undefined |
| 3964 | || ELF_ST_VISIBILITY (h->other))))) |
| 3965 | return FALSE; |
| 3966 | continue; |
| 3967 | } |
| 3968 | } |
| 3969 | |
| 3970 | hit_addr = contents + rel->r_offset; |
| 3971 | value += rel->r_addend; |
| 3972 | dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info); |
| 3973 | |
| 3974 | switch (r_type) |
| 3975 | { |
| 3976 | case R_IA64_NONE: |
| 3977 | case R_IA64_LDXMOV: |
| 3978 | continue; |
| 3979 | |
| 3980 | case R_IA64_IMM14: |
| 3981 | case R_IA64_IMM22: |
| 3982 | case R_IA64_IMM64: |
| 3983 | case R_IA64_DIR32MSB: |
| 3984 | case R_IA64_DIR32LSB: |
| 3985 | case R_IA64_DIR64MSB: |
| 3986 | case R_IA64_DIR64LSB: |
| 3987 | /* Install a dynamic relocation for this reloc. */ |
| 3988 | if ((dynamic_symbol_p || info->shared |
| 3989 | || (elfNN_ia64_aix_vec (info->hash->creator) |
| 3990 | /* Don't emit relocs for __GLOB_DATA_PTR on AIX. */ |
| 3991 | && (!h || strcmp (h->root.root.string, |
| 3992 | "__GLOB_DATA_PTR") != 0))) |
| 3993 | && r_symndx != 0 |
| 3994 | && (input_section->flags & SEC_ALLOC) != 0) |
| 3995 | { |
| 3996 | unsigned int dyn_r_type; |
| 3997 | long dynindx; |
| 3998 | bfd_vma addend; |
| 3999 | |
| 4000 | BFD_ASSERT (srel != NULL); |
| 4001 | |
| 4002 | /* If we don't need dynamic symbol lookup, find a |
| 4003 | matching RELATIVE relocation. */ |
| 4004 | dyn_r_type = r_type; |
| 4005 | if (dynamic_symbol_p) |
| 4006 | { |
| 4007 | dynindx = h->dynindx; |
| 4008 | addend = rel->r_addend; |
| 4009 | value = 0; |
| 4010 | } |
| 4011 | else |
| 4012 | { |
| 4013 | switch (r_type) |
| 4014 | { |
| 4015 | case R_IA64_DIR32MSB: |
| 4016 | dyn_r_type = R_IA64_REL32MSB; |
| 4017 | break; |
| 4018 | case R_IA64_DIR32LSB: |
| 4019 | dyn_r_type = R_IA64_REL32LSB; |
| 4020 | break; |
| 4021 | case R_IA64_DIR64MSB: |
| 4022 | dyn_r_type = R_IA64_REL64MSB; |
| 4023 | break; |
| 4024 | case R_IA64_DIR64LSB: |
| 4025 | dyn_r_type = R_IA64_REL64LSB; |
| 4026 | break; |
| 4027 | |
| 4028 | default: |
| 4029 | /* We can't represent this without a dynamic symbol. |
| 4030 | Adjust the relocation to be against an output |
| 4031 | section symbol, which are always present in the |
| 4032 | dynamic symbol table. */ |
| 4033 | /* ??? People shouldn't be doing non-pic code in |
| 4034 | shared libraries. Hork. */ |
| 4035 | (*_bfd_error_handler) |
| 4036 | (_("%s: linking non-pic code in a shared library"), |
| 4037 | bfd_archive_filename (input_bfd)); |
| 4038 | ret_val = FALSE; |
| 4039 | continue; |
| 4040 | } |
| 4041 | dynindx = 0; |
| 4042 | addend = value; |
| 4043 | } |
| 4044 | |
| 4045 | if (elfNN_ia64_aix_vec (info->hash->creator)) |
| 4046 | rel->r_addend = value; |
| 4047 | elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section, |
| 4048 | srel, rel->r_offset, dyn_r_type, |
| 4049 | dynindx, addend); |
| 4050 | } |
| 4051 | /* Fall through. */ |
| 4052 | |
| 4053 | case R_IA64_LTV32MSB: |
| 4054 | case R_IA64_LTV32LSB: |
| 4055 | case R_IA64_LTV64MSB: |
| 4056 | case R_IA64_LTV64LSB: |
| 4057 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4058 | break; |
| 4059 | |
| 4060 | case R_IA64_GPREL22: |
| 4061 | case R_IA64_GPREL64I: |
| 4062 | case R_IA64_GPREL32MSB: |
| 4063 | case R_IA64_GPREL32LSB: |
| 4064 | case R_IA64_GPREL64MSB: |
| 4065 | case R_IA64_GPREL64LSB: |
| 4066 | if (dynamic_symbol_p) |
| 4067 | { |
| 4068 | (*_bfd_error_handler) |
| 4069 | (_("%s: @gprel relocation against dynamic symbol %s"), |
| 4070 | bfd_archive_filename (input_bfd), h->root.root.string); |
| 4071 | ret_val = FALSE; |
| 4072 | continue; |
| 4073 | } |
| 4074 | value -= gp_val; |
| 4075 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4076 | break; |
| 4077 | |
| 4078 | case R_IA64_LTOFF22: |
| 4079 | case R_IA64_LTOFF22X: |
| 4080 | case R_IA64_LTOFF64I: |
| 4081 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); |
| 4082 | value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1), |
| 4083 | rel->r_addend, value, R_IA64_DIR64LSB); |
| 4084 | value -= gp_val; |
| 4085 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4086 | break; |
| 4087 | |
| 4088 | case R_IA64_PLTOFF22: |
| 4089 | case R_IA64_PLTOFF64I: |
| 4090 | case R_IA64_PLTOFF64MSB: |
| 4091 | case R_IA64_PLTOFF64LSB: |
| 4092 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); |
| 4093 | value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE); |
| 4094 | value -= gp_val; |
| 4095 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4096 | break; |
| 4097 | |
| 4098 | case R_IA64_FPTR64I: |
| 4099 | case R_IA64_FPTR32MSB: |
| 4100 | case R_IA64_FPTR32LSB: |
| 4101 | case R_IA64_FPTR64MSB: |
| 4102 | case R_IA64_FPTR64LSB: |
| 4103 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); |
| 4104 | if (dyn_i->want_fptr) |
| 4105 | { |
| 4106 | if (!undef_weak_ref) |
| 4107 | value = set_fptr_entry (output_bfd, info, dyn_i, value); |
| 4108 | } |
| 4109 | else |
| 4110 | { |
| 4111 | long dynindx; |
| 4112 | |
| 4113 | /* Otherwise, we expect the dynamic linker to create |
| 4114 | the entry. */ |
| 4115 | |
| 4116 | if (h) |
| 4117 | { |
| 4118 | if (h->dynindx != -1) |
| 4119 | dynindx = h->dynindx; |
| 4120 | else |
| 4121 | dynindx = (_bfd_elf_link_lookup_local_dynindx |
| 4122 | (info, h->root.u.def.section->owner, |
| 4123 | global_sym_index (h))); |
| 4124 | } |
| 4125 | else |
| 4126 | { |
| 4127 | dynindx = (_bfd_elf_link_lookup_local_dynindx |
| 4128 | (info, input_bfd, (long) r_symndx)); |
| 4129 | } |
| 4130 | |
| 4131 | elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section, |
| 4132 | srel, rel->r_offset, r_type, |
| 4133 | dynindx, rel->r_addend); |
| 4134 | value = 0; |
| 4135 | } |
| 4136 | |
| 4137 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4138 | break; |
| 4139 | |
| 4140 | case R_IA64_LTOFF_FPTR22: |
| 4141 | case R_IA64_LTOFF_FPTR64I: |
| 4142 | case R_IA64_LTOFF_FPTR32MSB: |
| 4143 | case R_IA64_LTOFF_FPTR32LSB: |
| 4144 | case R_IA64_LTOFF_FPTR64MSB: |
| 4145 | case R_IA64_LTOFF_FPTR64LSB: |
| 4146 | { |
| 4147 | long dynindx; |
| 4148 | |
| 4149 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); |
| 4150 | if (dyn_i->want_fptr) |
| 4151 | { |
| 4152 | BFD_ASSERT (h == NULL || h->dynindx == -1) |
| 4153 | if (!undef_weak_ref) |
| 4154 | value = set_fptr_entry (output_bfd, info, dyn_i, value); |
| 4155 | dynindx = -1; |
| 4156 | } |
| 4157 | else |
| 4158 | { |
| 4159 | /* Otherwise, we expect the dynamic linker to create |
| 4160 | the entry. */ |
| 4161 | if (h) |
| 4162 | { |
| 4163 | if (h->dynindx != -1) |
| 4164 | dynindx = h->dynindx; |
| 4165 | else |
| 4166 | dynindx = (_bfd_elf_link_lookup_local_dynindx |
| 4167 | (info, h->root.u.def.section->owner, |
| 4168 | global_sym_index (h))); |
| 4169 | } |
| 4170 | else |
| 4171 | dynindx = (_bfd_elf_link_lookup_local_dynindx |
| 4172 | (info, input_bfd, (long) r_symndx)); |
| 4173 | value = 0; |
| 4174 | } |
| 4175 | |
| 4176 | value = set_got_entry (output_bfd, info, dyn_i, dynindx, |
| 4177 | rel->r_addend, value, R_IA64_FPTR64LSB); |
| 4178 | value -= gp_val; |
| 4179 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4180 | } |
| 4181 | break; |
| 4182 | |
| 4183 | case R_IA64_PCREL32MSB: |
| 4184 | case R_IA64_PCREL32LSB: |
| 4185 | case R_IA64_PCREL64MSB: |
| 4186 | case R_IA64_PCREL64LSB: |
| 4187 | /* Install a dynamic relocation for this reloc. */ |
| 4188 | if ((dynamic_symbol_p |
| 4189 | || elfNN_ia64_aix_vec (info->hash->creator)) |
| 4190 | && r_symndx != 0) |
| 4191 | { |
| 4192 | BFD_ASSERT (srel != NULL); |
| 4193 | |
| 4194 | elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section, |
| 4195 | srel, rel->r_offset, r_type, |
| 4196 | h->dynindx, rel->r_addend); |
| 4197 | } |
| 4198 | goto finish_pcrel; |
| 4199 | |
| 4200 | case R_IA64_PCREL21B: |
| 4201 | case R_IA64_PCREL60B: |
| 4202 | /* We should have created a PLT entry for any dynamic symbol. */ |
| 4203 | dyn_i = NULL; |
| 4204 | if (h) |
| 4205 | dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE); |
| 4206 | |
| 4207 | if (dyn_i && dyn_i->want_plt2) |
| 4208 | { |
| 4209 | /* Should have caught this earlier. */ |
| 4210 | BFD_ASSERT (rel->r_addend == 0); |
| 4211 | |
| 4212 | value = (ia64_info->plt_sec->output_section->vma |
| 4213 | + ia64_info->plt_sec->output_offset |
| 4214 | + dyn_i->plt2_offset); |
| 4215 | } |
| 4216 | else |
| 4217 | { |
| 4218 | /* Since there's no PLT entry, Validate that this is |
| 4219 | locally defined. */ |
| 4220 | BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL); |
| 4221 | |
| 4222 | /* If the symbol is undef_weak, we shouldn't be trying |
| 4223 | to call it. There's every chance that we'd wind up |
| 4224 | with an out-of-range fixup here. Don't bother setting |
| 4225 | any value at all. */ |
| 4226 | if (undef_weak_ref) |
| 4227 | continue; |
| 4228 | } |
| 4229 | goto finish_pcrel; |
| 4230 | |
| 4231 | case R_IA64_PCREL21BI: |
| 4232 | case R_IA64_PCREL21F: |
| 4233 | case R_IA64_PCREL21M: |
| 4234 | case R_IA64_PCREL22: |
| 4235 | case R_IA64_PCREL64I: |
| 4236 | /* The PCREL21BI reloc is specifically not intended for use with |
| 4237 | dynamic relocs. PCREL21F and PCREL21M are used for speculation |
| 4238 | fixup code, and thus probably ought not be dynamic. The |
| 4239 | PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */ |
| 4240 | if (dynamic_symbol_p) |
| 4241 | { |
| 4242 | const char *msg; |
| 4243 | |
| 4244 | if (r_type == R_IA64_PCREL21BI) |
| 4245 | msg = _("%s: @internal branch to dynamic symbol %s"); |
| 4246 | else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M) |
| 4247 | msg = _("%s: speculation fixup to dynamic symbol %s"); |
| 4248 | else |
| 4249 | msg = _("%s: @pcrel relocation against dynamic symbol %s"); |
| 4250 | (*_bfd_error_handler) (msg, bfd_archive_filename (input_bfd), |
| 4251 | h->root.root.string); |
| 4252 | ret_val = FALSE; |
| 4253 | continue; |
| 4254 | } |
| 4255 | goto finish_pcrel; |
| 4256 | |
| 4257 | finish_pcrel: |
| 4258 | /* Make pc-relative. */ |
| 4259 | value -= (input_section->output_section->vma |
| 4260 | + input_section->output_offset |
| 4261 | + rel->r_offset) & ~ (bfd_vma) 0x3; |
| 4262 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4263 | break; |
| 4264 | |
| 4265 | case R_IA64_SEGREL32MSB: |
| 4266 | case R_IA64_SEGREL32LSB: |
| 4267 | case R_IA64_SEGREL64MSB: |
| 4268 | case R_IA64_SEGREL64LSB: |
| 4269 | if (r_symndx == 0) |
| 4270 | { |
| 4271 | /* If the input section was discarded from the output, then |
| 4272 | do nothing. */ |
| 4273 | r = bfd_reloc_ok; |
| 4274 | } |
| 4275 | else |
| 4276 | { |
| 4277 | struct elf_segment_map *m; |
| 4278 | Elf_Internal_Phdr *p; |
| 4279 | |
| 4280 | /* Find the segment that contains the output_section. */ |
| 4281 | for (m = elf_tdata (output_bfd)->segment_map, |
| 4282 | p = elf_tdata (output_bfd)->phdr; |
| 4283 | m != NULL; |
| 4284 | m = m->next, p++) |
| 4285 | { |
| 4286 | int i; |
| 4287 | for (i = m->count - 1; i >= 0; i--) |
| 4288 | if (m->sections[i] == sym_sec->output_section) |
| 4289 | break; |
| 4290 | if (i >= 0) |
| 4291 | break; |
| 4292 | } |
| 4293 | |
| 4294 | if (m == NULL) |
| 4295 | { |
| 4296 | r = bfd_reloc_notsupported; |
| 4297 | } |
| 4298 | else |
| 4299 | { |
| 4300 | /* The VMA of the segment is the vaddr of the associated |
| 4301 | program header. */ |
| 4302 | if (value > p->p_vaddr) |
| 4303 | value -= p->p_vaddr; |
| 4304 | else |
| 4305 | value = 0; |
| 4306 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, |
| 4307 | r_type); |
| 4308 | } |
| 4309 | break; |
| 4310 | } |
| 4311 | |
| 4312 | case R_IA64_SECREL32MSB: |
| 4313 | case R_IA64_SECREL32LSB: |
| 4314 | case R_IA64_SECREL64MSB: |
| 4315 | case R_IA64_SECREL64LSB: |
| 4316 | /* Make output-section relative. */ |
| 4317 | if (value > input_section->output_section->vma) |
| 4318 | value -= input_section->output_section->vma; |
| 4319 | else |
| 4320 | value = 0; |
| 4321 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4322 | break; |
| 4323 | |
| 4324 | case R_IA64_IPLTMSB: |
| 4325 | case R_IA64_IPLTLSB: |
| 4326 | /* Install a dynamic relocation for this reloc. */ |
| 4327 | if ((dynamic_symbol_p || info->shared) |
| 4328 | && (input_section->flags & SEC_ALLOC) != 0) |
| 4329 | { |
| 4330 | BFD_ASSERT (srel != NULL); |
| 4331 | |
| 4332 | /* If we don't need dynamic symbol lookup, install two |
| 4333 | RELATIVE relocations. */ |
| 4334 | if (! dynamic_symbol_p) |
| 4335 | { |
| 4336 | unsigned int dyn_r_type; |
| 4337 | |
| 4338 | if (r_type == R_IA64_IPLTMSB) |
| 4339 | dyn_r_type = R_IA64_REL64MSB; |
| 4340 | else |
| 4341 | dyn_r_type = R_IA64_REL64LSB; |
| 4342 | |
| 4343 | elfNN_ia64_install_dyn_reloc (output_bfd, info, |
| 4344 | input_section, |
| 4345 | srel, rel->r_offset, |
| 4346 | dyn_r_type, 0, value); |
| 4347 | elfNN_ia64_install_dyn_reloc (output_bfd, info, |
| 4348 | input_section, |
| 4349 | srel, rel->r_offset + 8, |
| 4350 | dyn_r_type, 0, gp_val); |
| 4351 | } |
| 4352 | else |
| 4353 | elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section, |
| 4354 | srel, rel->r_offset, r_type, |
| 4355 | h->dynindx, rel->r_addend); |
| 4356 | } |
| 4357 | |
| 4358 | if (r_type == R_IA64_IPLTMSB) |
| 4359 | r_type = R_IA64_DIR64MSB; |
| 4360 | else |
| 4361 | r_type = R_IA64_DIR64LSB; |
| 4362 | elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4363 | r = elfNN_ia64_install_value (output_bfd, hit_addr + 8, gp_val, |
| 4364 | r_type); |
| 4365 | break; |
| 4366 | |
| 4367 | case R_IA64_TPREL14: |
| 4368 | case R_IA64_TPREL22: |
| 4369 | case R_IA64_TPREL64I: |
| 4370 | value -= elfNN_ia64_tprel_base (info); |
| 4371 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4372 | break; |
| 4373 | |
| 4374 | case R_IA64_DTPREL14: |
| 4375 | case R_IA64_DTPREL22: |
| 4376 | case R_IA64_DTPREL64I: |
| 4377 | case R_IA64_DTPREL64LSB: |
| 4378 | case R_IA64_DTPREL64MSB: |
| 4379 | value -= elfNN_ia64_dtprel_base (info); |
| 4380 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type); |
| 4381 | break; |
| 4382 | |
| 4383 | case R_IA64_LTOFF_TPREL22: |
| 4384 | case R_IA64_LTOFF_DTPMOD22: |
| 4385 | case R_IA64_LTOFF_DTPREL22: |
| 4386 | { |
| 4387 | int got_r_type; |
| 4388 | long dynindx = h ? h->dynindx : -1; |
| 4389 | bfd_vma r_addend = rel->r_addend; |
| 4390 | |
| 4391 | switch (r_type) |
| 4392 | { |
| 4393 | default: |
| 4394 | case R_IA64_LTOFF_TPREL22: |
| 4395 | if (!dynamic_symbol_p) |
| 4396 | { |
| 4397 | if (!info->shared) |
| 4398 | value -= elfNN_ia64_tprel_base (info); |
| 4399 | else |
| 4400 | { |
| 4401 | r_addend += value - elfNN_ia64_dtprel_base (info); |
| 4402 | dynindx = 0; |
| 4403 | } |
| 4404 | } |
| 4405 | got_r_type = R_IA64_TPREL64LSB; |
| 4406 | break; |
| 4407 | case R_IA64_LTOFF_DTPMOD22: |
| 4408 | if (!dynamic_symbol_p && !info->shared) |
| 4409 | value = 1; |
| 4410 | got_r_type = R_IA64_DTPMOD64LSB; |
| 4411 | break; |
| 4412 | case R_IA64_LTOFF_DTPREL22: |
| 4413 | if (!dynamic_symbol_p) |
| 4414 | value -= elfNN_ia64_dtprel_base (info); |
| 4415 | got_r_type = R_IA64_DTPREL64LSB; |
| 4416 | break; |
| 4417 | } |
| 4418 | dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE); |
| 4419 | value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend, |
| 4420 | value, got_r_type); |
| 4421 | value -= gp_val; |
| 4422 | r = elfNN_ia64_install_value (output_bfd, hit_addr, value, |
| 4423 | r_type); |
| 4424 | } |
| 4425 | break; |
| 4426 | |
| 4427 | default: |
| 4428 | r = bfd_reloc_notsupported; |
| 4429 | break; |
| 4430 | } |
| 4431 | |
| 4432 | switch (r) |
| 4433 | { |
| 4434 | case bfd_reloc_ok: |
| 4435 | break; |
| 4436 | |
| 4437 | case bfd_reloc_undefined: |
| 4438 | /* This can happen for global table relative relocs if |
| 4439 | __gp is undefined. This is a panic situation so we |
| 4440 | don't try to continue. */ |
| 4441 | (*info->callbacks->undefined_symbol) |
| 4442 | (info, "__gp", input_bfd, input_section, rel->r_offset, 1); |
| 4443 | return FALSE; |
| 4444 | |
| 4445 | case bfd_reloc_notsupported: |
| 4446 | { |
| 4447 | const char *name; |
| 4448 | |
| 4449 | if (h) |
| 4450 | name = h->root.root.string; |
| 4451 | else |
| 4452 | { |
| 4453 | name = bfd_elf_string_from_elf_section (input_bfd, |
| 4454 | symtab_hdr->sh_link, |
| 4455 | sym->st_name); |
| 4456 | if (name == NULL) |
| 4457 | return FALSE; |
| 4458 | if (*name == '\0') |
| 4459 | name = bfd_section_name (input_bfd, input_section); |
| 4460 | } |
| 4461 | if (!(*info->callbacks->warning) (info, _("unsupported reloc"), |
| 4462 | name, input_bfd, |
| 4463 | input_section, rel->r_offset)) |
| 4464 | return FALSE; |
| 4465 | ret_val = FALSE; |
| 4466 | } |
| 4467 | break; |
| 4468 | |
| 4469 | case bfd_reloc_dangerous: |
| 4470 | case bfd_reloc_outofrange: |
| 4471 | case bfd_reloc_overflow: |
| 4472 | default: |
| 4473 | { |
| 4474 | const char *name; |
| 4475 | |
| 4476 | if (h) |
| 4477 | name = h->root.root.string; |
| 4478 | else |
| 4479 | { |
| 4480 | name = bfd_elf_string_from_elf_section (input_bfd, |
| 4481 | symtab_hdr->sh_link, |
| 4482 | sym->st_name); |
| 4483 | if (name == NULL) |
| 4484 | return FALSE; |
| 4485 | if (*name == '\0') |
| 4486 | name = bfd_section_name (input_bfd, input_section); |
| 4487 | } |
| 4488 | if (!(*info->callbacks->reloc_overflow) (info, name, |
| 4489 | howto->name, |
| 4490 | (bfd_vma) 0, |
| 4491 | input_bfd, |
| 4492 | input_section, |
| 4493 | rel->r_offset)) |
| 4494 | return FALSE; |
| 4495 | ret_val = FALSE; |
| 4496 | } |
| 4497 | break; |
| 4498 | } |
| 4499 | } |
| 4500 | |
| 4501 | return ret_val; |
| 4502 | } |
| 4503 | |
| 4504 | static bfd_boolean |
| 4505 | elfNN_ia64_finish_dynamic_symbol (output_bfd, info, h, sym) |
| 4506 | bfd *output_bfd; |
| 4507 | struct bfd_link_info *info; |
| 4508 | struct elf_link_hash_entry *h; |
| 4509 | Elf_Internal_Sym *sym; |
| 4510 | { |
| 4511 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 4512 | struct elfNN_ia64_dyn_sym_info *dyn_i; |
| 4513 | |
| 4514 | ia64_info = elfNN_ia64_hash_table (info); |
| 4515 | dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE); |
| 4516 | |
| 4517 | /* Fill in the PLT data, if required. */ |
| 4518 | if (dyn_i && dyn_i->want_plt) |
| 4519 | { |
| 4520 | Elf_Internal_Rela outrel; |
| 4521 | bfd_byte *loc; |
| 4522 | asection *plt_sec; |
| 4523 | bfd_vma plt_addr, pltoff_addr, gp_val, index; |
| 4524 | |
| 4525 | gp_val = _bfd_get_gp_value (output_bfd); |
| 4526 | |
| 4527 | /* Initialize the minimal PLT entry. */ |
| 4528 | |
| 4529 | index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE; |
| 4530 | plt_sec = ia64_info->plt_sec; |
| 4531 | loc = plt_sec->contents + dyn_i->plt_offset; |
| 4532 | |
| 4533 | memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE); |
| 4534 | elfNN_ia64_install_value (output_bfd, loc, index, R_IA64_IMM22); |
| 4535 | elfNN_ia64_install_value (output_bfd, loc+2, -dyn_i->plt_offset, |
| 4536 | R_IA64_PCREL21B); |
| 4537 | |
| 4538 | plt_addr = (plt_sec->output_section->vma |
| 4539 | + plt_sec->output_offset |
| 4540 | + dyn_i->plt_offset); |
| 4541 | pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE); |
| 4542 | |
| 4543 | /* Initialize the FULL PLT entry, if needed. */ |
| 4544 | if (dyn_i->want_plt2) |
| 4545 | { |
| 4546 | loc = plt_sec->contents + dyn_i->plt2_offset; |
| 4547 | |
| 4548 | memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE); |
| 4549 | elfNN_ia64_install_value (output_bfd, loc, pltoff_addr - gp_val, |
| 4550 | R_IA64_IMM22); |
| 4551 | |
| 4552 | /* Mark the symbol as undefined, rather than as defined in the |
| 4553 | plt section. Leave the value alone. */ |
| 4554 | /* ??? We didn't redefine it in adjust_dynamic_symbol in the |
| 4555 | first place. But perhaps elflink.h did some for us. */ |
| 4556 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
| 4557 | sym->st_shndx = SHN_UNDEF; |
| 4558 | } |
| 4559 | |
| 4560 | /* Create the dynamic relocation. */ |
| 4561 | outrel.r_offset = pltoff_addr; |
| 4562 | if (bfd_little_endian (output_bfd)) |
| 4563 | outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB); |
| 4564 | else |
| 4565 | outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB); |
| 4566 | outrel.r_addend = 0; |
| 4567 | |
| 4568 | /* This is fun. In the .IA_64.pltoff section, we've got entries |
| 4569 | that correspond both to real PLT entries, and those that |
| 4570 | happened to resolve to local symbols but need to be created |
| 4571 | to satisfy @pltoff relocations. The .rela.IA_64.pltoff |
| 4572 | relocations for the real PLT should come at the end of the |
| 4573 | section, so that they can be indexed by plt entry at runtime. |
| 4574 | |
| 4575 | We emitted all of the relocations for the non-PLT @pltoff |
| 4576 | entries during relocate_section. So we can consider the |
| 4577 | existing sec->reloc_count to be the base of the array of |
| 4578 | PLT relocations. */ |
| 4579 | |
| 4580 | loc = ia64_info->rel_pltoff_sec->contents; |
| 4581 | loc += ((ia64_info->rel_pltoff_sec->reloc_count + index) |
| 4582 | * sizeof (Elf64_External_Rela)); |
| 4583 | bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc); |
| 4584 | } |
| 4585 | |
| 4586 | /* Mark some specially defined symbols as absolute. */ |
| 4587 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
| 4588 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 |
| 4589 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) |
| 4590 | sym->st_shndx = SHN_ABS; |
| 4591 | |
| 4592 | return TRUE; |
| 4593 | } |
| 4594 | |
| 4595 | static bfd_boolean |
| 4596 | elfNN_ia64_finish_dynamic_sections (abfd, info) |
| 4597 | bfd *abfd; |
| 4598 | struct bfd_link_info *info; |
| 4599 | { |
| 4600 | struct elfNN_ia64_link_hash_table *ia64_info; |
| 4601 | bfd *dynobj; |
| 4602 | |
| 4603 | ia64_info = elfNN_ia64_hash_table (info); |
| 4604 | dynobj = ia64_info->root.dynobj; |
| 4605 | |
| 4606 | if (elf_hash_table (info)->dynamic_sections_created) |
| 4607 | { |
| 4608 | ElfNN_External_Dyn *dyncon, *dynconend; |
| 4609 | asection *sdyn, *sgotplt; |
| 4610 | bfd_vma gp_val; |
| 4611 | |
| 4612 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
| 4613 | sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); |
| 4614 | BFD_ASSERT (sdyn != NULL); |
| 4615 | dyncon = (ElfNN_External_Dyn *) sdyn->contents; |
| 4616 | dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->_raw_size); |
| 4617 | |
| 4618 | gp_val = _bfd_get_gp_value (abfd); |
| 4619 | |
| 4620 | for (; dyncon < dynconend; dyncon++) |
| 4621 | { |
| 4622 | Elf_Internal_Dyn dyn; |
| 4623 | |
| 4624 | bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn); |
| 4625 | |
| 4626 | switch (dyn.d_tag) |
| 4627 | { |
| 4628 | case DT_PLTGOT: |
| 4629 | dyn.d_un.d_ptr = gp_val; |
| 4630 | break; |
| 4631 | |
| 4632 | case DT_PLTRELSZ: |
| 4633 | dyn.d_un.d_val = (ia64_info->minplt_entries |
| 4634 | * sizeof (ElfNN_External_Rela)); |
| 4635 | break; |
| 4636 | |
| 4637 | case DT_JMPREL: |
| 4638 | /* See the comment above in finish_dynamic_symbol. */ |
| 4639 | dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma |
| 4640 | + ia64_info->rel_pltoff_sec->output_offset |
| 4641 | + (ia64_info->rel_pltoff_sec->reloc_count |
| 4642 | * sizeof (ElfNN_External_Rela))); |
| 4643 | break; |
| 4644 | |
| 4645 | case DT_IA_64_PLT_RESERVE: |
| 4646 | dyn.d_un.d_ptr = (sgotplt->output_section->vma |
| 4647 | + sgotplt->output_offset); |
| 4648 | break; |
| 4649 | |
| 4650 | case DT_RELASZ: |
| 4651 | /* Do not have RELASZ include JMPREL. This makes things |
| 4652 | easier on ld.so. This is not what the rest of BFD set up. */ |
| 4653 | dyn.d_un.d_val -= (ia64_info->minplt_entries |
| 4654 | * sizeof (ElfNN_External_Rela)); |
| 4655 | break; |
| 4656 | } |
| 4657 | |
| 4658 | bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon); |
| 4659 | } |
| 4660 | |
| 4661 | /* Initialize the PLT0 entry. */ |
| 4662 | if (ia64_info->plt_sec) |
| 4663 | { |
| 4664 | bfd_byte *loc = ia64_info->plt_sec->contents; |
| 4665 | bfd_vma pltres; |
| 4666 | |
| 4667 | memcpy (loc, plt_header, PLT_HEADER_SIZE); |
| 4668 | |
| 4669 | pltres = (sgotplt->output_section->vma |
| 4670 | + sgotplt->output_offset |
| 4671 | - gp_val); |
| 4672 | |
| 4673 | elfNN_ia64_install_value (abfd, loc+1, pltres, R_IA64_GPREL22); |
| 4674 | } |
| 4675 | } |
| 4676 | |
| 4677 | return TRUE; |
| 4678 | } |
| 4679 | \f |
| 4680 | /* ELF file flag handling: */ |
| 4681 | |
| 4682 | /* Function to keep IA-64 specific file flags. */ |
| 4683 | static bfd_boolean |
| 4684 | elfNN_ia64_set_private_flags (abfd, flags) |
| 4685 | bfd *abfd; |
| 4686 | flagword flags; |
| 4687 | { |
| 4688 | BFD_ASSERT (!elf_flags_init (abfd) |
| 4689 | || elf_elfheader (abfd)->e_flags == flags); |
| 4690 | |
| 4691 | elf_elfheader (abfd)->e_flags = flags; |
| 4692 | elf_flags_init (abfd) = TRUE; |
| 4693 | return TRUE; |
| 4694 | } |
| 4695 | |
| 4696 | /* Merge backend specific data from an object file to the output |
| 4697 | object file when linking. */ |
| 4698 | static bfd_boolean |
| 4699 | elfNN_ia64_merge_private_bfd_data (ibfd, obfd) |
| 4700 | bfd *ibfd, *obfd; |
| 4701 | { |
| 4702 | flagword out_flags; |
| 4703 | flagword in_flags; |
| 4704 | bfd_boolean ok = TRUE; |
| 4705 | |
| 4706 | /* Don't even pretend to support mixed-format linking. */ |
| 4707 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| 4708 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| 4709 | return FALSE; |
| 4710 | |
| 4711 | in_flags = elf_elfheader (ibfd)->e_flags; |
| 4712 | out_flags = elf_elfheader (obfd)->e_flags; |
| 4713 | |
| 4714 | if (! elf_flags_init (obfd)) |
| 4715 | { |
| 4716 | elf_flags_init (obfd) = TRUE; |
| 4717 | elf_elfheader (obfd)->e_flags = in_flags; |
| 4718 | |
| 4719 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) |
| 4720 | && bfd_get_arch_info (obfd)->the_default) |
| 4721 | { |
| 4722 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), |
| 4723 | bfd_get_mach (ibfd)); |
| 4724 | } |
| 4725 | |
| 4726 | return TRUE; |
| 4727 | } |
| 4728 | |
| 4729 | /* Check flag compatibility. */ |
| 4730 | if (in_flags == out_flags) |
| 4731 | return TRUE; |
| 4732 | |
| 4733 | /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */ |
| 4734 | if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP)) |
| 4735 | elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP; |
| 4736 | |
| 4737 | if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL)) |
| 4738 | { |
| 4739 | (*_bfd_error_handler) |
| 4740 | (_("%s: linking trap-on-NULL-dereference with non-trapping files"), |
| 4741 | bfd_archive_filename (ibfd)); |
| 4742 | |
| 4743 | bfd_set_error (bfd_error_bad_value); |
| 4744 | ok = FALSE; |
| 4745 | } |
| 4746 | if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE)) |
| 4747 | { |
| 4748 | (*_bfd_error_handler) |
| 4749 | (_("%s: linking big-endian files with little-endian files"), |
| 4750 | bfd_archive_filename (ibfd)); |
| 4751 | |
| 4752 | bfd_set_error (bfd_error_bad_value); |
| 4753 | ok = FALSE; |
| 4754 | } |
| 4755 | if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64)) |
| 4756 | { |
| 4757 | (*_bfd_error_handler) |
| 4758 | (_("%s: linking 64-bit files with 32-bit files"), |
| 4759 | bfd_archive_filename (ibfd)); |
| 4760 | |
| 4761 | bfd_set_error (bfd_error_bad_value); |
| 4762 | ok = FALSE; |
| 4763 | } |
| 4764 | if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP)) |
| 4765 | { |
| 4766 | (*_bfd_error_handler) |
| 4767 | (_("%s: linking constant-gp files with non-constant-gp files"), |
| 4768 | bfd_archive_filename (ibfd)); |
| 4769 | |
| 4770 | bfd_set_error (bfd_error_bad_value); |
| 4771 | ok = FALSE; |
| 4772 | } |
| 4773 | if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP) |
| 4774 | != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP)) |
| 4775 | { |
| 4776 | (*_bfd_error_handler) |
| 4777 | (_("%s: linking auto-pic files with non-auto-pic files"), |
| 4778 | bfd_archive_filename (ibfd)); |
| 4779 | |
| 4780 | bfd_set_error (bfd_error_bad_value); |
| 4781 | ok = FALSE; |
| 4782 | } |
| 4783 | |
| 4784 | return ok; |
| 4785 | } |
| 4786 | |
| 4787 | static bfd_boolean |
| 4788 | elfNN_ia64_print_private_bfd_data (abfd, ptr) |
| 4789 | bfd *abfd; |
| 4790 | PTR ptr; |
| 4791 | { |
| 4792 | FILE *file = (FILE *) ptr; |
| 4793 | flagword flags = elf_elfheader (abfd)->e_flags; |
| 4794 | |
| 4795 | BFD_ASSERT (abfd != NULL && ptr != NULL); |
| 4796 | |
| 4797 | fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n", |
| 4798 | (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "", |
| 4799 | (flags & EF_IA_64_EXT) ? "EXT, " : "", |
| 4800 | (flags & EF_IA_64_BE) ? "BE, " : "LE, ", |
| 4801 | (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "", |
| 4802 | (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "", |
| 4803 | (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "", |
| 4804 | (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "", |
| 4805 | (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32"); |
| 4806 | |
| 4807 | _bfd_elf_print_private_bfd_data (abfd, ptr); |
| 4808 | return TRUE; |
| 4809 | } |
| 4810 | |
| 4811 | static enum elf_reloc_type_class |
| 4812 | elfNN_ia64_reloc_type_class (rela) |
| 4813 | const Elf_Internal_Rela *rela; |
| 4814 | { |
| 4815 | switch ((int) ELFNN_R_TYPE (rela->r_info)) |
| 4816 | { |
| 4817 | case R_IA64_REL32MSB: |
| 4818 | case R_IA64_REL32LSB: |
| 4819 | case R_IA64_REL64MSB: |
| 4820 | case R_IA64_REL64LSB: |
| 4821 | return reloc_class_relative; |
| 4822 | case R_IA64_IPLTMSB: |
| 4823 | case R_IA64_IPLTLSB: |
| 4824 | return reloc_class_plt; |
| 4825 | case R_IA64_COPY: |
| 4826 | return reloc_class_copy; |
| 4827 | default: |
| 4828 | return reloc_class_normal; |
| 4829 | } |
| 4830 | } |
| 4831 | |
| 4832 | static bfd_boolean |
| 4833 | elfNN_ia64_hpux_vec (const bfd_target *vec) |
| 4834 | { |
| 4835 | extern const bfd_target bfd_elfNN_ia64_hpux_big_vec; |
| 4836 | return (vec == & bfd_elfNN_ia64_hpux_big_vec); |
| 4837 | } |
| 4838 | |
| 4839 | static void |
| 4840 | elfNN_hpux_post_process_headers (abfd, info) |
| 4841 | bfd *abfd; |
| 4842 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 4843 | { |
| 4844 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); |
| 4845 | |
| 4846 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; |
| 4847 | i_ehdrp->e_ident[EI_ABIVERSION] = 1; |
| 4848 | } |
| 4849 | |
| 4850 | bfd_boolean |
| 4851 | elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval) |
| 4852 | bfd *abfd ATTRIBUTE_UNUSED; |
| 4853 | asection *sec; |
| 4854 | int *retval; |
| 4855 | { |
| 4856 | if (bfd_is_com_section (sec)) |
| 4857 | { |
| 4858 | *retval = SHN_IA_64_ANSI_COMMON; |
| 4859 | return TRUE; |
| 4860 | } |
| 4861 | return FALSE; |
| 4862 | } |
| 4863 | \f |
| 4864 | #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec |
| 4865 | #define TARGET_LITTLE_NAME "elfNN-ia64-little" |
| 4866 | #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec |
| 4867 | #define TARGET_BIG_NAME "elfNN-ia64-big" |
| 4868 | #define ELF_ARCH bfd_arch_ia64 |
| 4869 | #define ELF_MACHINE_CODE EM_IA_64 |
| 4870 | #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */ |
| 4871 | #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */ |
| 4872 | #define ELF_MAXPAGESIZE 0x10000 /* 64KB */ |
| 4873 | |
| 4874 | #define elf_backend_section_from_shdr \ |
| 4875 | elfNN_ia64_section_from_shdr |
| 4876 | #define elf_backend_section_flags \ |
| 4877 | elfNN_ia64_section_flags |
| 4878 | #define elf_backend_fake_sections \ |
| 4879 | elfNN_ia64_fake_sections |
| 4880 | #define elf_backend_final_write_processing \ |
| 4881 | elfNN_ia64_final_write_processing |
| 4882 | #define elf_backend_add_symbol_hook \ |
| 4883 | elfNN_ia64_add_symbol_hook |
| 4884 | #define elf_backend_additional_program_headers \ |
| 4885 | elfNN_ia64_additional_program_headers |
| 4886 | #define elf_backend_modify_segment_map \ |
| 4887 | elfNN_ia64_modify_segment_map |
| 4888 | #define elf_info_to_howto \ |
| 4889 | elfNN_ia64_info_to_howto |
| 4890 | |
| 4891 | #define bfd_elfNN_bfd_reloc_type_lookup \ |
| 4892 | elfNN_ia64_reloc_type_lookup |
| 4893 | #define bfd_elfNN_bfd_is_local_label_name \ |
| 4894 | elfNN_ia64_is_local_label_name |
| 4895 | #define bfd_elfNN_bfd_relax_section \ |
| 4896 | elfNN_ia64_relax_section |
| 4897 | |
| 4898 | /* Stuff for the BFD linker: */ |
| 4899 | #define bfd_elfNN_bfd_link_hash_table_create \ |
| 4900 | elfNN_ia64_hash_table_create |
| 4901 | #define elf_backend_create_dynamic_sections \ |
| 4902 | elfNN_ia64_create_dynamic_sections |
| 4903 | #define elf_backend_check_relocs \ |
| 4904 | elfNN_ia64_check_relocs |
| 4905 | #define elf_backend_adjust_dynamic_symbol \ |
| 4906 | elfNN_ia64_adjust_dynamic_symbol |
| 4907 | #define elf_backend_size_dynamic_sections \ |
| 4908 | elfNN_ia64_size_dynamic_sections |
| 4909 | #define elf_backend_relocate_section \ |
| 4910 | elfNN_ia64_relocate_section |
| 4911 | #define elf_backend_finish_dynamic_symbol \ |
| 4912 | elfNN_ia64_finish_dynamic_symbol |
| 4913 | #define elf_backend_finish_dynamic_sections \ |
| 4914 | elfNN_ia64_finish_dynamic_sections |
| 4915 | #define bfd_elfNN_bfd_final_link \ |
| 4916 | elfNN_ia64_final_link |
| 4917 | |
| 4918 | #define bfd_elfNN_bfd_merge_private_bfd_data \ |
| 4919 | elfNN_ia64_merge_private_bfd_data |
| 4920 | #define bfd_elfNN_bfd_set_private_flags \ |
| 4921 | elfNN_ia64_set_private_flags |
| 4922 | #define bfd_elfNN_bfd_print_private_bfd_data \ |
| 4923 | elfNN_ia64_print_private_bfd_data |
| 4924 | |
| 4925 | #define elf_backend_plt_readonly 1 |
| 4926 | #define elf_backend_want_plt_sym 0 |
| 4927 | #define elf_backend_plt_alignment 5 |
| 4928 | #define elf_backend_got_header_size 0 |
| 4929 | #define elf_backend_plt_header_size PLT_HEADER_SIZE |
| 4930 | #define elf_backend_want_got_plt 1 |
| 4931 | #define elf_backend_may_use_rel_p 1 |
| 4932 | #define elf_backend_may_use_rela_p 1 |
| 4933 | #define elf_backend_default_use_rela_p 1 |
| 4934 | #define elf_backend_want_dynbss 0 |
| 4935 | #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect |
| 4936 | #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol |
| 4937 | #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class |
| 4938 | #define elf_backend_rela_normal 1 |
| 4939 | |
| 4940 | #include "elfNN-target.h" |
| 4941 | |
| 4942 | /* AIX-specific vectors. */ |
| 4943 | |
| 4944 | #undef TARGET_LITTLE_SYM |
| 4945 | #define TARGET_LITTLE_SYM bfd_elfNN_ia64_aix_little_vec |
| 4946 | #undef TARGET_LITTLE_NAME |
| 4947 | #define TARGET_LITTLE_NAME "elfNN-ia64-aix-little" |
| 4948 | #undef TARGET_BIG_SYM |
| 4949 | #define TARGET_BIG_SYM bfd_elfNN_ia64_aix_big_vec |
| 4950 | #undef TARGET_BIG_NAME |
| 4951 | #define TARGET_BIG_NAME "elfNN-ia64-aix-big" |
| 4952 | |
| 4953 | #undef elf_backend_add_symbol_hook |
| 4954 | #define elf_backend_add_symbol_hook elfNN_ia64_aix_add_symbol_hook |
| 4955 | |
| 4956 | #undef bfd_elfNN_bfd_link_add_symbols |
| 4957 | #define bfd_elfNN_bfd_link_add_symbols elfNN_ia64_aix_link_add_symbols |
| 4958 | |
| 4959 | #define elfNN_bed elfNN_ia64_aix_bed |
| 4960 | |
| 4961 | #include "elfNN-target.h" |
| 4962 | |
| 4963 | /* HPUX-specific vectors. */ |
| 4964 | |
| 4965 | #undef TARGET_LITTLE_SYM |
| 4966 | #undef TARGET_LITTLE_NAME |
| 4967 | #undef TARGET_BIG_SYM |
| 4968 | #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec |
| 4969 | #undef TARGET_BIG_NAME |
| 4970 | #define TARGET_BIG_NAME "elfNN-ia64-hpux-big" |
| 4971 | |
| 4972 | /* We need to undo the AIX specific functions. */ |
| 4973 | |
| 4974 | #undef elf_backend_add_symbol_hook |
| 4975 | #define elf_backend_add_symbol_hook elfNN_ia64_add_symbol_hook |
| 4976 | |
| 4977 | #undef bfd_elfNN_bfd_link_add_symbols |
| 4978 | #define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols |
| 4979 | |
| 4980 | /* These are HP-UX specific functions. */ |
| 4981 | |
| 4982 | #undef elf_backend_post_process_headers |
| 4983 | #define elf_backend_post_process_headers elfNN_hpux_post_process_headers |
| 4984 | |
| 4985 | #undef elf_backend_section_from_bfd_section |
| 4986 | #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section |
| 4987 | |
| 4988 | #undef elf_backend_want_p_paddr_set_to_zero |
| 4989 | #define elf_backend_want_p_paddr_set_to_zero 1 |
| 4990 | |
| 4991 | #undef ELF_MAXPAGESIZE |
| 4992 | #define ELF_MAXPAGESIZE 0x1000 /* 1K */ |
| 4993 | |
| 4994 | #undef elfNN_bed |
| 4995 | #define elfNN_bed elfNN_ia64_hpux_bed |
| 4996 | |
| 4997 | #include "elfNN-target.h" |
| 4998 | |
| 4999 | #undef elf_backend_want_p_paddr_set_to_zero |