1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 1988 AT&T 24 * All Rights Reserved 25 * 26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 /* 31 * Local include file for ld library. 32 */ 33 34 #ifndef _LIBLD_DOT_H 35 #define _LIBLD_DOT_H 36 37 #pragma ident "%Z%%M% %I% %E% SMI" 38 39 #include <libld.h> 40 #include <debug.h> 41 #include <conv.h> 42 #include <msg.h> 43 44 #ifdef __cplusplus 45 extern "C" { 46 #endif 47 48 /* 49 * Types of segment index. 50 */ 51 typedef enum { 52 LD_PHDR, LD_INTERP, LD_SUNWCAP, LD_TEXT, 53 LD_DATA, LD_BSS, 54 #if (defined(__i386) || defined(__amd64)) && defined(_ELF64) 55 LD_LRODATA, LD_LDATA, 56 #endif 57 LD_DYN, LD_DTRACE, LD_NOTE, LD_SUNWBSS, 58 LD_TLS, 59 #if defined(__x86) && defined(_ELF64) 60 LD_UNWIND, 61 #endif 62 LD_EXTRA, 63 LD_NUM 64 } Segment_ndx; 65 66 /* 67 * Types of bss sections 68 */ 69 typedef enum { 70 MAKE_BSS, 71 MAKE_LBSS, 72 MAKE_TLS 73 } Bss_Type; 74 75 /* 76 * Structure to manage the update of weak symbols from their associated alias. 77 */ 78 typedef struct wk_desc { 79 Sym *wk_symtab; /* the .symtab entry */ 80 Sym *wk_dynsym; /* the .dynsym entry */ 81 Sym_desc *wk_weak; /* the original weak symbol */ 82 Sym_desc *wk_alias; /* the real symbol */ 83 } Wk_desc; 84 85 /* 86 * Structure to manage the support library interfaces. 87 */ 88 typedef struct func_list { 89 const char *fl_obj; /* name of support object */ 90 /* function is from */ 91 void (*fl_fptr)(); /* function pointer */ 92 uint_t fl_version; /* ld_version() level */ 93 } Func_list; 94 95 typedef struct support_list { 96 const char *sup_name; /* ld_support function name */ 97 List sup_funcs; /* list of support functions */ 98 } Support_list; 99 100 /* 101 * Structure to manage a sorted output relocation list. 102 * 103 * rl_key1 -> pointer to needed ndx 104 * rl_key2 -> pointer to symbol relocation is against 105 * rl_key3 -> virtual offset of relocation 106 */ 107 typedef struct reloc_list { 108 Sym_desc *rl_key2; 109 Xword rl_key3; 110 Rel_desc *rl_rsp; 111 Half rl_key1; 112 } Reloc_list; 113 114 115 typedef struct sym_s_list { 116 Word sl_hval; 117 Sym_desc * sl_sdp; 118 } Sym_s_list; 119 120 /* 121 * ld heap management structure 122 */ 123 typedef struct _ld_heap Ld_heap; 124 struct _ld_heap { 125 Ld_heap *lh_next; 126 void *lh_free; 127 void *lh_end; 128 }; 129 130 #define HEAPBLOCK 0x68000 /* default allocation block size */ 131 #define HEAPALIGN 0x8 /* heap blocks alignment requirement */ 132 133 /* 134 * Dynamic per-symbol filtee string table descriptor. This associates filtee 135 * strings that will be created in the .dynstr, with .dynamic entries. 136 */ 137 typedef struct { 138 char *dft_str; /* dynstr string */ 139 Word dft_flag; /* auxiliary/filtee type */ 140 Half dft_ndx; /* eventual ndx into .dynamic */ 141 } Dfltr_desc; 142 143 #define AL_CNT_DFLTR 4 144 #define AL_CNT_GROUP 20 145 146 /* 147 * Per-symbol filtee descriptor. This associates symbol definitions with 148 * their filtees. 149 */ 150 typedef struct { 151 Sym_desc *sft_sdp; /* symbol descriptor */ 152 Aliste sft_off; /* offset into dtstr descriptor */ 153 } Sfltr_desc; 154 155 #define AL_CNT_SFLTR 20 156 157 /* 158 * Return codes for {tls|got}_fixups() routines 159 */ 160 typedef enum { 161 FIX_ERROR, /* fatal error - time to punt */ 162 FIX_DONE, /* relocation done - no further processing required */ 163 FIX_RELOC /* do_reloc() relocation processing required */ 164 } Fixupret; 165 166 #ifndef FILENAME_MAX 167 #define FILENAME_MAX BUFSIZ /* maximum length of a path name */ 168 #endif 169 170 /* 171 * Relocation buckets are sized based on the number of input relocations and 172 * the following constants. 173 */ 174 #define REL_HAIDESCNO 1000 /* high water mark active buckets */ 175 #define REL_LAIDESCNO 50 /* low water mark active buckets */ 176 #define REL_HOIDESCNO 500 /* high water mark output buckets */ 177 #define REL_LOIDESCNO 10 /* low water mark output buckets */ 178 179 extern char *Plibpath; 180 extern char *Llibdir; 181 extern char *Ulibdir; 182 extern Ld_heap *ld_heap; 183 extern List lib_support; 184 extern int demangle_flag; 185 extern const Msg reject[]; 186 extern int Verbose; 187 188 /* 189 * For backward compatibility provide a /dev/zero file descriptor. 190 */ 191 extern int dz_fd; 192 193 /* 194 * Local functions. 195 */ 196 extern char *add_string(char *, char *); 197 extern const char *demangle(const char *); 198 199 extern void lds_atexit(Ofl_desc *, int); 200 201 extern void libld_free(void *); 202 extern void *libld_malloc(size_t); 203 extern void *libld_realloc(void *, size_t); 204 205 extern Listnode *list_appendc(List *, const void *); 206 extern Listnode *list_insertc(List *, const void *, Listnode *); 207 extern Listnode *list_prependc(List *, const void *); 208 extern Listnode *list_where(List *, Word num); 209 210 extern Sdf_desc *sdf_add(const char *, List *); 211 extern Sdf_desc *sdf_find(const char *, List *); 212 213 #if defined(_ELF64) 214 215 #define ld_add_actrel ld64_add_actrel 216 #define ld_add_libdir ld64_add_libdir 217 #define ld_add_outrel ld64_add_outrel 218 #define ld_adj_movereloc ld64_adj_movereloc 219 #define ld_am_I_partial ld64_am_I_partial 220 #define ld_ar_member ld64_ar_member 221 #define ld_ar_setup ld64_ar_setup 222 #if defined(sparc) 223 #define ld_allocate_got ld64_allocate_got 224 #endif 225 #define ld_assign_got ld64_assign_got 226 #define ld_assign_gotndx ld64_assign_gotndx 227 #define ld_assign_plt_ndx ld64_assign_plt_ndx 228 #define ld_calc_got_offset ld64_calc_got_offset 229 #define ld_calc_plt_addr ld64_calc_plt_addr 230 #define ld_disp_errmsg ld64_disp_errmsg 231 #define ld_do_activerelocs ld64_do_activerelocs 232 #define ld_ent_check ld64_ent_check 233 #define ld_exit ld64_exit 234 #define ld_fillin_gotplt ld64_fillin_gotplt 235 #define ld_find_gotndx ld64_find_gotndx 236 #define ld_find_library ld64_find_library 237 #define ld_finish_libs ld64_finish_libs 238 #define ld_get_group ld64_get_group 239 #define ld_lib_setup ld64_lib_setup 240 #define ld_init ld64_init 241 #define ld_init_rel ld64_init_rel 242 #define ld_is_regsym ld64_is_regsym 243 #define ld_lcm ld64_lcm 244 #define ld_mach_update_odynamic ld64_mach_update_odynamic 245 #define ld_mach_eflags ld64_mach_eflags 246 #define ld_mach_make_dynamic ld64_mach_make_dynamic 247 #define ld_mach_sym_typecheck ld64_mach_sym_typecheck 248 #define ld_make_bss ld64_make_bss 249 #define ld_make_got ld64_make_got 250 #define ld_map_out ld64_map_out 251 #define ld_map_parse ld64_map_parse 252 #define ld_make_sunwbss ld64_make_sunwbss 253 #define ld_make_sunwdata ld64_make_sunwdata 254 #define ld_make_sunwmove ld64_make_sunmove 255 #define ld_open_outfile ld64_open_outfile 256 #define ld_perform_outreloc ld64_perform_outreloc 257 #define ld_place_section ld64_place_section 258 #define ld_process_archive ld64_process_archive 259 #define ld_process_files ld64_process_files 260 #define ld_process_flags ld64_process_flags 261 #define ld_process_ifl ld64_process_ifl 262 #define ld_process_open ld64_process_open 263 #define ld_process_ordered ld64_process_ordered 264 #define ld_process_sym_reloc ld64_process_sym_reloc 265 #define ld_reloc_local ld64_reloc_local 266 #define ld_reloc_GOT_relative ld64_reloc_GOT_relative 267 #define ld_reloc_GOTOP ld64_reloc_GOTOP 268 #define ld_reloc_plt ld64_reloc_plt 269 #define ld_reloc_register ld64_reloc_register 270 #define ld_reloc_remain_entry ld64_reloc_remain_entry 271 #define ld_reloc_TLS ld64_reloc_TLS 272 #define ld_reg_check ld64_reg_check 273 #define ld_reg_enter ld64_reg_enter 274 #define ld_reg_find ld64_reg_find 275 #define ld_sec_validate ld64_sec_validate 276 #define ld_sort_ordered ld64_sort_ordered 277 #define ld_sort_seg_list ld64_sort_seg_list 278 #define ld_sunwmove_preprocess ld64_sunwmove_preprocess 279 #define ld_sup_atexit ld64_sup_atexit 280 #define ld_sup_file ld64_sup_file 281 #define ld_sup_loadso ld64_sup_loadso 282 #define ld_sup_input_done ld64_sup_input_done 283 #define ld_sup_input_section ld64_sup_input_section 284 #define ld_sup_section ld64_sup_section 285 #define ld_sup_start ld64_sup_start 286 #define ld_sym_add_u ld64_sym_add_u 287 #define ld_sym_adjust_vis ld64_sym_adjust_vis 288 #define ld_sym_avl_comp ld64_sym_avl_comp 289 #define ld_sym_copy ld64_sym_copy 290 #define ld_sym_enter ld64_sym_enter 291 #define ld_sym_find ld64_sym_find 292 #define ld_sym_nodirect ld64_sym_nodirect 293 #define ld_sym_process ld64_sym_process 294 #define ld_sym_resolve ld64_sym_resolve 295 #define ld_sym_spec ld64_sym_spec 296 #define ld_vers_base ld64_vers_base 297 #define ld_vers_check_defs ld64_vers_check_defs 298 #define ld_vers_check_need ld64_vers_check_need 299 #define ld_vers_def_process ld64_vers_def_process 300 #define ld_vers_desc ld64_vers_desc 301 #define ld_vers_find ld64_vers_find 302 #define ld_vers_need_process ld64_vers_need_process 303 #define ld_vers_promote ld64_vers_promote 304 #define ld_vers_sym_process ld64_vers_sym_process 305 #define ld_vers_verify ld64_vers_verify 306 307 #else 308 309 #define ld_add_actrel ld32_add_actrel 310 #define ld_add_libdir ld32_add_libdir 311 #define ld_add_outrel ld32_add_outrel 312 #define ld_adj_movereloc ld32_adj_movereloc 313 #define ld_am_I_partial ld32_am_I_partial 314 #define ld_ar_member ld32_ar_member 315 #define ld_ar_setup ld32_ar_setup 316 #if defined(sparc) 317 #define ld_allocate_got ld32_allocate_got 318 #endif 319 #define ld_assign_got ld32_assign_got 320 #define ld_assign_gotndx ld32_assign_gotndx 321 #define ld_assign_plt_ndx ld32_assign_plt_ndx 322 #define ld_calc_got_offset ld32_calc_got_offset 323 #define ld_calc_plt_addr ld32_calc_plt_addr 324 #define ld_disp_errmsg ld32_disp_errmsg 325 #define ld_do_activerelocs ld32_do_activerelocs 326 #define ld_ent_check ld32_ent_check 327 #define ld_exit ld32_exit 328 #define ld_fillin_gotplt ld32_fillin_gotplt 329 #define ld_find_gotndx ld32_find_gotndx 330 #define ld_find_library ld32_find_library 331 #define ld_finish_libs ld32_finish_libs 332 #define ld_get_group ld32_get_group 333 #define ld_lib_setup ld32_lib_setup 334 #define ld_init ld32_init 335 #define ld_init_rel ld32_init_rel 336 #define ld_is_regsym ld32_is_regsym 337 #define ld_lcm ld32_lcm 338 #define ld_mach_update_odynamic ld32_mach_update_odynamic 339 #define ld_mach_eflags ld32_mach_eflags 340 #define ld_mach_make_dynamic ld32_mach_make_dynamic 341 #define ld_mach_sym_typecheck ld32_mach_sym_typecheck 342 #define ld_make_bss ld32_make_bss 343 #define ld_make_got ld32_make_got 344 #define ld_map_out ld32_map_out 345 #define ld_map_parse ld32_map_parse 346 #define ld_make_sunwbss ld32_make_sunwbss 347 #define ld_make_sunwdata ld32_make_sunwdata 348 #define ld_make_sunwmove ld32_make_sunmove 349 #define ld_open_outfile ld32_open_outfile 350 #define ld_perform_outreloc ld32_perform_outreloc 351 #define ld_place_section ld32_place_section 352 #define ld_process_archive ld32_process_archive 353 #define ld_process_files ld32_process_files 354 #define ld_process_flags ld32_process_flags 355 #define ld_process_ifl ld32_process_ifl 356 #define ld_process_open ld32_process_open 357 #define ld_process_ordered ld32_process_ordered 358 #define ld_process_sym_reloc ld32_process_sym_reloc 359 #define ld_reloc_local ld32_reloc_local 360 #define ld_reloc_GOT_relative ld32_reloc_GOT_relative 361 #define ld_reloc_GOTOP ld32_reloc_GOTOP 362 #define ld_reloc_plt ld32_reloc_plt 363 #define ld_reloc_register ld32_reloc_register 364 #define ld_reloc_remain_entry ld32_reloc_remain_entry 365 #define ld_reloc_TLS ld32_reloc_TLS 366 #define ld_reg_check ld32_reg_check 367 #define ld_reg_enter ld32_reg_enter 368 #define ld_reg_find ld32_reg_find 369 #define ld_sec_validate ld32_sec_validate 370 #define ld_sort_ordered ld32_sort_ordered 371 #define ld_sort_seg_list ld32_sort_seg_list 372 #define ld_sunwmove_preprocess ld32_sunwmove_preprocess 373 #define ld_sup_atexit ld32_sup_atexit 374 #define ld_sup_file ld32_sup_file 375 #define ld_sup_loadso ld32_sup_loadso 376 #define ld_sup_input_done ld32_sup_input_done 377 #define ld_sup_input_section ld32_sup_input_section 378 #define ld_sup_section ld32_sup_section 379 #define ld_sup_start ld32_sup_start 380 #define ld_sym_add_u ld32_sym_add_u 381 #define ld_sym_adjust_vis ld32_sym_adjust_vis 382 #define ld_sym_avl_comp ld32_sym_avl_comp 383 #define ld_sym_copy ld32_sym_copy 384 #define ld_sym_enter ld32_sym_enter 385 #define ld_sym_find ld32_sym_find 386 #define ld_sym_nodirect ld32_sym_nodirect 387 #define ld_sym_process ld32_sym_process 388 #define ld_sym_resolve ld32_sym_resolve 389 #define ld_sym_spec ld32_sym_spec 390 #define ld_vers_base ld32_vers_base 391 #define ld_vers_check_defs ld32_vers_check_defs 392 #define ld_vers_check_need ld32_vers_check_need 393 #define ld_vers_def_process ld32_vers_def_process 394 #define ld_vers_desc ld32_vers_desc 395 #define ld_vers_find ld32_vers_find 396 #define ld_vers_need_process ld32_vers_need_process 397 #define ld_vers_promote ld32_vers_promote 398 #define ld_vers_sym_process ld32_vers_sym_process 399 #define ld_vers_verify ld32_vers_verify 400 401 #endif 402 403 extern uintptr_t dbg_setup(const char *, Dbg_desc *, const char **, int); 404 405 extern uintptr_t ld_add_actrel(Word, Rel_desc *, Ofl_desc *); 406 extern uintptr_t ld_add_libdir(Ofl_desc *, const char *); 407 extern uintptr_t ld_add_outrel(Word, Rel_desc *, Ofl_desc *); 408 extern void ld_adj_movereloc(Ofl_desc *, Rel_desc *); 409 extern Sym_desc * ld_am_I_partial(Rel_desc *, Xword); 410 extern void ld_ar_member(Ar_desc *, Elf_Arsym *, Ar_aux *, 411 Ar_mem *); 412 extern Ar_desc *ld_ar_setup(const char *, Elf *, Ofl_desc *); 413 #if defined(sparc) 414 extern uintptr_t ld_allocate_got(Ofl_desc *); 415 #endif 416 extern uintptr_t ld_assign_got(Ofl_desc *, Sym_desc *); 417 extern uintptr_t ld_assign_gotndx(List *, Gotndx *, Gotref, Ofl_desc *, 418 Rel_desc *, Sym_desc *); 419 extern void ld_assign_plt_ndx(Sym_desc *, Ofl_desc *); 420 421 extern Xword ld_calc_got_offset(Rel_desc *, Ofl_desc *); 422 extern Xword ld_calc_plt_addr(Sym_desc *, Ofl_desc *); 423 424 extern void ld_disp_errmsg(const char *, Rel_desc *, Ofl_desc *); 425 extern uintptr_t ld_do_activerelocs(Ofl_desc *); 426 427 extern void ld_ent_check(Ofl_desc *); 428 extern int ld_exit(Ofl_desc *); 429 430 extern uintptr_t ld_fillin_gotplt(Ofl_desc *); 431 extern Gotndx * ld_find_gotndx(List *, Gotref, Ofl_desc *, Rel_desc *); 432 extern uintptr_t ld_find_library(const char *, Ofl_desc *); 433 extern uintptr_t ld_finish_libs(Ofl_desc *); 434 435 extern Group_desc * ld_get_group(Ofl_desc *, Is_desc *); 436 437 extern uintptr_t ld_lib_setup(Ofl_desc *); 438 439 extern void ld_init(Ofl_desc *); 440 extern Word ld_init_rel(Rel_desc *, void *); 441 extern const char *ld_is_regsym(Ofl_desc *, Ifl_desc *, Sym *, 442 const char *, int, Word, const char *, Word *); 443 444 extern Xword ld_lcm(Xword, Xword); 445 446 extern void ld_mach_update_odynamic(Ofl_desc *, Dyn **); 447 extern void ld_mach_eflags(Ehdr *, Ofl_desc *); 448 extern void ld_mach_make_dynamic(Ofl_desc *, size_t *); 449 extern int ld_mach_sym_typecheck(Sym_desc *, Sym *, Ifl_desc *, 450 Ofl_desc *); 451 extern uintptr_t ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type); 452 extern uintptr_t ld_make_got(Ofl_desc *); 453 extern void ld_map_out(Ofl_desc *); 454 extern uintptr_t ld_map_parse(const char *, Ofl_desc *); 455 extern uintptr_t ld_make_sunwbss(Ofl_desc *, size_t, Xword); 456 extern uintptr_t ld_make_sunwdata(Ofl_desc *, size_t, Xword); 457 extern uintptr_t ld_make_sunwmove(Ofl_desc *, int); 458 459 extern uintptr_t ld_open_outfile(Ofl_desc *); 460 461 extern uintptr_t ld_perform_outreloc(Rel_desc *, Ofl_desc *); 462 extern Os_desc * ld_place_section(Ofl_desc *, Is_desc *, int, Word); 463 extern uintptr_t ld_process_archive(const char *, int, Ar_desc *, 464 Ofl_desc *); 465 extern uintptr_t ld_process_files(Ofl_desc *, int, char **); 466 extern uintptr_t ld_process_flags(Ofl_desc *, int, char **); 467 extern Ifl_desc *ld_process_ifl(const char *, const char *, int, Elf *, 468 Half, Ofl_desc *, Rej_desc *); 469 extern Ifl_desc *ld_process_open(const char *, size_t, int, Ofl_desc *, 470 Half, Rej_desc *); 471 extern uintptr_t ld_process_ordered(Ifl_desc *, Ofl_desc *, Word, Word); 472 extern uintptr_t ld_process_sym_reloc(Ofl_desc *, Rel_desc *, Rel *, 473 Is_desc *, const char *); 474 475 extern uintptr_t ld_reloc_local(Rel_desc *, Ofl_desc *); 476 extern uintptr_t ld_reloc_GOT_relative(Boolean, Rel_desc *, Ofl_desc *); 477 extern uintptr_t ld_reloc_GOTOP(Boolean, Rel_desc *, Ofl_desc *); 478 extern uintptr_t ld_reloc_plt(Rel_desc *, Ofl_desc *); 479 extern uintptr_t ld_reloc_register(Rel_desc *, Is_desc *, Ofl_desc *); 480 extern void ld_reloc_remain_entry(Rel_desc *, Os_desc *, 481 Ofl_desc *); 482 extern uintptr_t ld_reloc_TLS(Boolean, Rel_desc *, Ofl_desc *); 483 484 extern int ld_reg_check(Sym_desc *, Sym *, const char *, 485 Ifl_desc *, Ofl_desc *); 486 extern int ld_reg_enter(Sym_desc *, Ofl_desc *); 487 extern Sym_desc * ld_reg_find(Sym *, Ofl_desc *); 488 489 extern void ld_sec_validate(Ofl_desc *); 490 extern uintptr_t ld_sort_ordered(Ofl_desc *); 491 extern uintptr_t ld_sort_seg_list(Ofl_desc *); 492 extern uintptr_t ld_sunwmove_preprocess(Ofl_desc *); 493 extern void ld_sup_atexit(Ofl_desc *, int); 494 extern void ld_sup_file(Ofl_desc *, const char *, const Elf_Kind, 495 int flags, Elf *); 496 extern uintptr_t ld_sup_loadso(Ofl_desc *, const char *); 497 extern void ld_sup_input_done(Ofl_desc *); 498 extern void ld_sup_section(Ofl_desc *, const char *, Shdr *, Word, 499 Elf_Data *, Elf *); 500 extern uintptr_t ld_sup_input_section(Ofl_desc*, const char *, Shdr **, 501 Word, const char *, Elf_Scn *, Elf *); 502 extern void ld_sup_start(Ofl_desc *, const Half, const char *); 503 extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *); 504 extern void ld_sym_adjust_vis(Sym_desc *, Ofl_desc *); 505 extern int ld_sym_avl_comp(const void *, const void *); 506 extern uintptr_t ld_sym_copy(Sym_desc *); 507 extern Sym_desc *ld_sym_enter(const char *, Sym *, Word, Ifl_desc *, 508 Ofl_desc *, Word, Word, Word, Half, avl_index_t *); 509 extern Sym_desc *ld_sym_find(const char *, Word, avl_index_t *, 510 Ofl_desc *); 511 extern uintptr_t ld_sym_nodirect(Is_desc *, Ifl_desc *, Ofl_desc *); 512 extern uintptr_t ld_sym_process(Is_desc *, Ifl_desc *, Ofl_desc *); 513 extern uintptr_t ld_sym_resolve(Sym_desc *, Sym *, Ifl_desc *, 514 Ofl_desc *, int, Word, Word); 515 extern uintptr_t ld_sym_spec(Ofl_desc *); 516 517 extern Ver_desc *ld_vers_base(Ofl_desc *); 518 extern uintptr_t ld_vers_check_defs(Ofl_desc *); 519 extern uintptr_t ld_vers_check_need(Ofl_desc *); 520 extern uintptr_t ld_vers_def_process(Is_desc *, Ifl_desc *, Ofl_desc *); 521 extern Ver_desc *ld_vers_desc(const char *, Word, List *); 522 extern Ver_desc *ld_vers_find(const char *, Word, List *); 523 extern uintptr_t ld_vers_need_process(Is_desc *, Ifl_desc *, Ofl_desc *); 524 extern void ld_vers_promote(Sym_desc *, Word, Ifl_desc *, 525 Ofl_desc *); 526 extern int ld_vers_sym_process(Lm_list *, Is_desc *, Ifl_desc *); 527 extern int ld_vers_verify(Ofl_desc *); 528 529 extern uintptr_t add_regsym(Sym_desc *, Ofl_desc *); 530 extern void *alist_append(Alist **, const void *, size_t, int); 531 extern Word hashbkts(Word); 532 extern Xword lcm(Xword, Xword); 533 extern Listnode * list_where(List *, Word); 534 535 /* 536 * AMD64 - 64-bit specific functions 537 */ 538 #if (defined(__i386) || defined(__amd64)) && defined(_ELF64) 539 extern uintptr_t append_amd64_unwind(Os_desc *, Ofl_desc *); 540 extern uintptr_t make_amd64_unwindhdr(Ofl_desc *); 541 extern uintptr_t populate_amd64_unwindhdr(Ofl_desc *); 542 #endif 543 544 #ifdef __cplusplus 545 } 546 #endif 547 548 #endif /* _LIBLD_DOT_H */ 549