_libld.h revision 1698:0cf90a9f4e74
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 <_libelf.h> 41#include <debug.h> 42#include <conv.h> 43#include <msg.h> 44 45#ifdef __cplusplus 46extern "C" { 47#endif 48 49/* 50 * Types of segment index. 51 */ 52typedef enum { 53 LD_PHDR, LD_INTERP, LD_SUNWCAP, LD_TEXT, 54 LD_DATA, LD_BSS, 55#if (defined(__i386) || defined(__amd64)) && defined(_ELF64) 56 LD_LRODATA, LD_LDATA, 57#endif 58 LD_DYN, LD_DTRACE, LD_NOTE, LD_SUNWBSS, 59 LD_TLS, 60#if defined(__x86) && defined(_ELF64) 61 LD_UNWIND, 62#endif 63 LD_EXTRA, 64 LD_NUM 65} Segment_ndx; 66 67/* 68 * Types of bss sections 69 */ 70typedef enum { 71 MAKE_BSS, 72 MAKE_LBSS, 73 MAKE_TLS 74} Bss_Type; 75 76/* 77 * Structure to manage the update of weak symbols from their associated alias. 78 */ 79typedef struct wk_desc { 80 Sym *wk_symtab; /* the .symtab entry */ 81 Sym *wk_dynsym; /* the .dynsym entry */ 82 Sym_desc *wk_weak; /* the original weak symbol */ 83 Sym_desc *wk_alias; /* the real symbol */ 84} Wk_desc; 85 86/* 87 * Structure to manage the support library interfaces. 88 */ 89typedef struct func_list { 90 const char *fl_obj; /* name of support object */ 91 /* function is from */ 92 void (*fl_fptr)(); /* function pointer */ 93 uint_t fl_version; /* ld_version() level */ 94} Func_list; 95 96typedef struct support_list { 97 const char *sup_name; /* ld_support function name */ 98 List sup_funcs; /* list of support functions */ 99} Support_list; 100 101/* 102 * Structure to manage a sorted output relocation list. 103 * 104 * rl_key1 -> pointer to needed ndx 105 * rl_key2 -> pointer to symbol relocation is against 106 * rl_key3 -> virtual offset of relocation 107 */ 108typedef struct reloc_list { 109 Sym_desc *rl_key2; 110 Xword rl_key3; 111 Rel_desc *rl_rsp; 112 Half rl_key1; 113} Reloc_list; 114 115 116typedef struct sym_s_list { 117 Word sl_hval; 118 Sym_desc * sl_sdp; 119} Sym_s_list; 120 121/* 122 * ld heap management structure 123 */ 124typedef struct _ld_heap Ld_heap; 125struct _ld_heap { 126 Ld_heap *lh_next; 127 void *lh_free; 128 void *lh_end; 129}; 130 131#define HEAPBLOCK 0x68000 /* default allocation block size */ 132#define HEAPALIGN 0x8 /* heap blocks alignment requirement */ 133 134/* 135 * Dynamic per-symbol filtee string table descriptor. This associates filtee 136 * strings that will be created in the .dynstr, with .dynamic entries. 137 */ 138typedef struct { 139 char *dft_str; /* dynstr string */ 140 Word dft_flag; /* auxiliary/filtee type */ 141 Half dft_ndx; /* eventual ndx into .dynamic */ 142} Dfltr_desc; 143 144/* 145 * Per-symbol filtee descriptor. This associates symbol definitions with 146 * their filtees. 147 */ 148typedef struct { 149 Sym_desc *sft_sdp; /* symbol descriptor */ 150 Aliste sft_off; /* offset into dtstr descriptor */ 151} Sfltr_desc; 152 153/* 154 * Define Alist initialization sizes. 155 */ 156#define AL_CNT_DFLTR 4 /* ofl_dtsfltrs initial alist count */ 157#define AL_CNT_GROUP 20 /* ifl_groups initial alist count */ 158#define AL_CNT_SFLTR 20 /* ofl_symfltrs initial alist count */ 159#define AL_CNT_OSDESC 40 /* sg_osdescs initial alist count */ 160#define AL_CNT_SECORDER 40 /* sg_secorder initial alist count */ 161 162/* 163 * Return codes for {tls|got}_fixups() routines 164 */ 165typedef enum { 166 FIX_ERROR, /* fatal error - time to punt */ 167 FIX_DONE, /* relocation done - no further processing required */ 168 FIX_RELOC /* do_reloc() relocation processing required */ 169} Fixupret; 170 171#ifndef FILENAME_MAX 172#define FILENAME_MAX BUFSIZ /* maximum length of a path name */ 173#endif 174 175/* 176 * Relocation buckets are sized based on the number of input relocations and 177 * the following constants. 178 */ 179#define REL_HAIDESCNO 1000 /* high water mark active buckets */ 180#define REL_LAIDESCNO 50 /* low water mark active buckets */ 181#define REL_HOIDESCNO 500 /* high water mark output buckets */ 182#define REL_LOIDESCNO 10 /* low water mark output buckets */ 183 184extern char *Plibpath; 185extern char *Llibdir; 186extern char *Ulibdir; 187extern Ld_heap *ld_heap; 188extern List lib_support; 189extern int demangle_flag; 190extern const Msg reject[]; 191extern int Verbose; 192 193/* 194 * For backward compatibility provide a /dev/zero file descriptor. 195 */ 196extern int dz_fd; 197 198/* 199 * Local functions. 200 */ 201extern char *add_string(char *, char *); 202extern const char *demangle(const char *); 203 204extern void lds_atexit(Ofl_desc *, int); 205 206extern void libld_free(void *); 207extern void *libld_malloc(size_t); 208extern void *libld_realloc(void *, size_t); 209 210extern Listnode *list_appendc(List *, const void *); 211extern Listnode *list_insertc(List *, const void *, Listnode *); 212extern Listnode *list_prependc(List *, const void *); 213extern Listnode *list_where(List *, Word num); 214 215extern Sdf_desc *sdf_add(const char *, List *); 216extern Sdf_desc *sdf_find(const char *, List *); 217 218#if defined(_ELF64) 219 220#define ld_add_actrel ld64_add_actrel 221#define ld_add_libdir ld64_add_libdir 222#define ld_add_outrel ld64_add_outrel 223#define ld_adj_movereloc ld64_adj_movereloc 224#define ld_am_I_partial ld64_am_I_partial 225#define ld_ar_member ld64_ar_member 226#define ld_ar_setup ld64_ar_setup 227#if defined(sparc) 228#define ld_allocate_got ld64_allocate_got 229#endif 230#define ld_assign_got ld64_assign_got 231#define ld_assign_gotndx ld64_assign_gotndx 232#define ld_assign_plt_ndx ld64_assign_plt_ndx 233#define ld_calc_got_offset ld64_calc_got_offset 234#define ld_calc_plt_addr ld64_calc_plt_addr 235#define ld_disp_errmsg ld64_disp_errmsg 236#define ld_do_activerelocs ld64_do_activerelocs 237#define ld_ent_check ld64_ent_check 238#define ld_exit ld64_exit 239#define ld_fillin_gotplt ld64_fillin_gotplt 240#define ld_find_gotndx ld64_find_gotndx 241#define ld_find_library ld64_find_library 242#define ld_finish_libs ld64_finish_libs 243#define ld_get_group ld64_get_group 244#define ld_lib_setup ld64_lib_setup 245#define ld_init ld64_init 246#define ld_init_rel ld64_init_rel 247#define ld_is_regsym ld64_is_regsym 248#define ld_lcm ld64_lcm 249#define ld_mach_update_odynamic ld64_mach_update_odynamic 250#define ld_mach_eflags ld64_mach_eflags 251#define ld_mach_make_dynamic ld64_mach_make_dynamic 252#define ld_mach_sym_typecheck ld64_mach_sym_typecheck 253#define ld_make_bss ld64_make_bss 254#define ld_make_got ld64_make_got 255#define ld_map_out ld64_map_out 256#define ld_map_parse ld64_map_parse 257#define ld_make_sunwbss ld64_make_sunwbss 258#define ld_make_sunwdata ld64_make_sunwdata 259#define ld_make_sunwmove ld64_make_sunmove 260#define ld_open_outfile ld64_open_outfile 261#define ld_perform_outreloc ld64_perform_outreloc 262#define ld_place_section ld64_place_section 263#define ld_process_archive ld64_process_archive 264#define ld_process_files ld64_process_files 265#define ld_process_flags ld64_process_flags 266#define ld_process_ifl ld64_process_ifl 267#define ld_process_open ld64_process_open 268#define ld_process_ordered ld64_process_ordered 269#define ld_process_sym_reloc ld64_process_sym_reloc 270#define ld_reloc_local ld64_reloc_local 271#define ld_reloc_GOT_relative ld64_reloc_GOT_relative 272#define ld_reloc_GOTOP ld64_reloc_GOTOP 273#define ld_reloc_plt ld64_reloc_plt 274#define ld_reloc_register ld64_reloc_register 275#define ld_reloc_remain_entry ld64_reloc_remain_entry 276#define ld_reloc_TLS ld64_reloc_TLS 277#define ld_reg_check ld64_reg_check 278#define ld_reg_enter ld64_reg_enter 279#define ld_reg_find ld64_reg_find 280#define ld_sec_validate ld64_sec_validate 281#define ld_sort_ordered ld64_sort_ordered 282#define ld_sort_seg_list ld64_sort_seg_list 283#define ld_sunwmove_preprocess ld64_sunwmove_preprocess 284#define ld_sup_atexit ld64_sup_atexit 285#define ld_sup_file ld64_sup_file 286#define ld_sup_loadso ld64_sup_loadso 287#define ld_sup_input_done ld64_sup_input_done 288#define ld_sup_input_section ld64_sup_input_section 289#define ld_sup_section ld64_sup_section 290#define ld_sup_start ld64_sup_start 291#define ld_sym_add_u ld64_sym_add_u 292#define ld_sym_adjust_vis ld64_sym_adjust_vis 293#define ld_sym_avl_comp ld64_sym_avl_comp 294#define ld_sym_copy ld64_sym_copy 295#define ld_sym_enter ld64_sym_enter 296#define ld_sym_find ld64_sym_find 297#define ld_sym_nodirect ld64_sym_nodirect 298#define ld_sym_process ld64_sym_process 299#define ld_sym_resolve ld64_sym_resolve 300#define ld_sym_spec ld64_sym_spec 301#define ld_vers_base ld64_vers_base 302#define ld_vers_check_defs ld64_vers_check_defs 303#define ld_vers_check_need ld64_vers_check_need 304#define ld_vers_def_process ld64_vers_def_process 305#define ld_vers_desc ld64_vers_desc 306#define ld_vers_find ld64_vers_find 307#define ld_vers_need_process ld64_vers_need_process 308#define ld_vers_promote ld64_vers_promote 309#define ld_vers_sym_process ld64_vers_sym_process 310#define ld_vers_verify ld64_vers_verify 311 312#else 313 314#define ld_add_actrel ld32_add_actrel 315#define ld_add_libdir ld32_add_libdir 316#define ld_add_outrel ld32_add_outrel 317#define ld_adj_movereloc ld32_adj_movereloc 318#define ld_am_I_partial ld32_am_I_partial 319#define ld_ar_member ld32_ar_member 320#define ld_ar_setup ld32_ar_setup 321#if defined(sparc) 322#define ld_allocate_got ld32_allocate_got 323#endif 324#define ld_assign_got ld32_assign_got 325#define ld_assign_gotndx ld32_assign_gotndx 326#define ld_assign_plt_ndx ld32_assign_plt_ndx 327#define ld_calc_got_offset ld32_calc_got_offset 328#define ld_calc_plt_addr ld32_calc_plt_addr 329#define ld_disp_errmsg ld32_disp_errmsg 330#define ld_do_activerelocs ld32_do_activerelocs 331#define ld_ent_check ld32_ent_check 332#define ld_exit ld32_exit 333#define ld_fillin_gotplt ld32_fillin_gotplt 334#define ld_find_gotndx ld32_find_gotndx 335#define ld_find_library ld32_find_library 336#define ld_finish_libs ld32_finish_libs 337#define ld_get_group ld32_get_group 338#define ld_lib_setup ld32_lib_setup 339#define ld_init ld32_init 340#define ld_init_rel ld32_init_rel 341#define ld_is_regsym ld32_is_regsym 342#define ld_lcm ld32_lcm 343#define ld_mach_update_odynamic ld32_mach_update_odynamic 344#define ld_mach_eflags ld32_mach_eflags 345#define ld_mach_make_dynamic ld32_mach_make_dynamic 346#define ld_mach_sym_typecheck ld32_mach_sym_typecheck 347#define ld_make_bss ld32_make_bss 348#define ld_make_got ld32_make_got 349#define ld_map_out ld32_map_out 350#define ld_map_parse ld32_map_parse 351#define ld_make_sunwbss ld32_make_sunwbss 352#define ld_make_sunwdata ld32_make_sunwdata 353#define ld_make_sunwmove ld32_make_sunmove 354#define ld_open_outfile ld32_open_outfile 355#define ld_perform_outreloc ld32_perform_outreloc 356#define ld_place_section ld32_place_section 357#define ld_process_archive ld32_process_archive 358#define ld_process_files ld32_process_files 359#define ld_process_flags ld32_process_flags 360#define ld_process_ifl ld32_process_ifl 361#define ld_process_open ld32_process_open 362#define ld_process_ordered ld32_process_ordered 363#define ld_process_sym_reloc ld32_process_sym_reloc 364#define ld_reloc_local ld32_reloc_local 365#define ld_reloc_GOT_relative ld32_reloc_GOT_relative 366#define ld_reloc_GOTOP ld32_reloc_GOTOP 367#define ld_reloc_plt ld32_reloc_plt 368#define ld_reloc_register ld32_reloc_register 369#define ld_reloc_remain_entry ld32_reloc_remain_entry 370#define ld_reloc_TLS ld32_reloc_TLS 371#define ld_reg_check ld32_reg_check 372#define ld_reg_enter ld32_reg_enter 373#define ld_reg_find ld32_reg_find 374#define ld_sec_validate ld32_sec_validate 375#define ld_sort_ordered ld32_sort_ordered 376#define ld_sort_seg_list ld32_sort_seg_list 377#define ld_sunwmove_preprocess ld32_sunwmove_preprocess 378#define ld_sup_atexit ld32_sup_atexit 379#define ld_sup_file ld32_sup_file 380#define ld_sup_loadso ld32_sup_loadso 381#define ld_sup_input_done ld32_sup_input_done 382#define ld_sup_input_section ld32_sup_input_section 383#define ld_sup_section ld32_sup_section 384#define ld_sup_start ld32_sup_start 385#define ld_sym_add_u ld32_sym_add_u 386#define ld_sym_adjust_vis ld32_sym_adjust_vis 387#define ld_sym_avl_comp ld32_sym_avl_comp 388#define ld_sym_copy ld32_sym_copy 389#define ld_sym_enter ld32_sym_enter 390#define ld_sym_find ld32_sym_find 391#define ld_sym_nodirect ld32_sym_nodirect 392#define ld_sym_process ld32_sym_process 393#define ld_sym_resolve ld32_sym_resolve 394#define ld_sym_spec ld32_sym_spec 395#define ld_vers_base ld32_vers_base 396#define ld_vers_check_defs ld32_vers_check_defs 397#define ld_vers_check_need ld32_vers_check_need 398#define ld_vers_def_process ld32_vers_def_process 399#define ld_vers_desc ld32_vers_desc 400#define ld_vers_find ld32_vers_find 401#define ld_vers_need_process ld32_vers_need_process 402#define ld_vers_promote ld32_vers_promote 403#define ld_vers_sym_process ld32_vers_sym_process 404#define ld_vers_verify ld32_vers_verify 405 406#endif 407 408extern uintptr_t dbg_setup(const char *, Dbg_desc *, const char **, int); 409 410extern uintptr_t ld_add_actrel(Word, Rel_desc *, Ofl_desc *); 411extern uintptr_t ld_add_libdir(Ofl_desc *, const char *); 412extern uintptr_t ld_add_outrel(Word, Rel_desc *, Ofl_desc *); 413extern void ld_adj_movereloc(Ofl_desc *, Rel_desc *); 414extern Sym_desc * ld_am_I_partial(Rel_desc *, Xword); 415extern void ld_ar_member(Ar_desc *, Elf_Arsym *, Ar_aux *, 416 Ar_mem *); 417extern Ar_desc *ld_ar_setup(const char *, Elf *, Ofl_desc *); 418#if defined(sparc) 419extern uintptr_t ld_allocate_got(Ofl_desc *); 420#endif 421extern uintptr_t ld_assign_got(Ofl_desc *, Sym_desc *); 422extern uintptr_t ld_assign_gotndx(List *, Gotndx *, Gotref, Ofl_desc *, 423 Rel_desc *, Sym_desc *); 424extern void ld_assign_plt_ndx(Sym_desc *, Ofl_desc *); 425 426extern Xword ld_calc_got_offset(Rel_desc *, Ofl_desc *); 427extern Xword ld_calc_plt_addr(Sym_desc *, Ofl_desc *); 428 429extern void ld_disp_errmsg(const char *, Rel_desc *, Ofl_desc *); 430extern uintptr_t ld_do_activerelocs(Ofl_desc *); 431 432extern void ld_ent_check(Ofl_desc *); 433extern int ld_exit(Ofl_desc *); 434 435extern uintptr_t ld_fillin_gotplt(Ofl_desc *); 436extern Gotndx * ld_find_gotndx(List *, Gotref, Ofl_desc *, Rel_desc *); 437extern uintptr_t ld_find_library(const char *, Ofl_desc *); 438extern uintptr_t ld_finish_libs(Ofl_desc *); 439 440extern Group_desc * ld_get_group(Ofl_desc *, Is_desc *); 441 442extern uintptr_t ld_lib_setup(Ofl_desc *); 443 444extern void ld_init(Ofl_desc *); 445extern Word ld_init_rel(Rel_desc *, void *); 446extern const char *ld_is_regsym(Ofl_desc *, Ifl_desc *, Sym *, 447 const char *, int, Word, const char *, Word *); 448 449extern Xword ld_lcm(Xword, Xword); 450 451extern void ld_mach_update_odynamic(Ofl_desc *, Dyn **); 452extern void ld_mach_eflags(Ehdr *, Ofl_desc *); 453extern void ld_mach_make_dynamic(Ofl_desc *, size_t *); 454extern int ld_mach_sym_typecheck(Sym_desc *, Sym *, Ifl_desc *, 455 Ofl_desc *); 456extern uintptr_t ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type); 457extern uintptr_t ld_make_got(Ofl_desc *); 458extern void ld_map_out(Ofl_desc *); 459extern uintptr_t ld_map_parse(const char *, Ofl_desc *); 460extern uintptr_t ld_make_sunwbss(Ofl_desc *, size_t, Xword); 461extern uintptr_t ld_make_sunwdata(Ofl_desc *, size_t, Xword); 462extern uintptr_t ld_make_sunwmove(Ofl_desc *, int); 463 464extern uintptr_t ld_open_outfile(Ofl_desc *); 465 466extern uintptr_t ld_perform_outreloc(Rel_desc *, Ofl_desc *); 467extern Os_desc * ld_place_section(Ofl_desc *, Is_desc *, int, Word); 468extern uintptr_t ld_process_archive(const char *, int, Ar_desc *, 469 Ofl_desc *); 470extern uintptr_t ld_process_files(Ofl_desc *, int, char **); 471extern uintptr_t ld_process_flags(Ofl_desc *, int, char **); 472extern Ifl_desc *ld_process_ifl(const char *, const char *, int, Elf *, 473 Half, Ofl_desc *, Rej_desc *); 474extern Ifl_desc *ld_process_open(const char *, size_t, int, Ofl_desc *, 475 Half, Rej_desc *); 476extern uintptr_t ld_process_ordered(Ifl_desc *, Ofl_desc *, Word, Word); 477extern uintptr_t ld_process_sym_reloc(Ofl_desc *, Rel_desc *, Rel *, 478 Is_desc *, const char *); 479 480extern uintptr_t ld_reloc_local(Rel_desc *, Ofl_desc *); 481extern uintptr_t ld_reloc_GOT_relative(Boolean, Rel_desc *, Ofl_desc *); 482extern uintptr_t ld_reloc_GOTOP(Boolean, Rel_desc *, Ofl_desc *); 483extern uintptr_t ld_reloc_plt(Rel_desc *, Ofl_desc *); 484extern uintptr_t ld_reloc_register(Rel_desc *, Is_desc *, Ofl_desc *); 485extern void ld_reloc_remain_entry(Rel_desc *, Os_desc *, 486 Ofl_desc *); 487extern uintptr_t ld_reloc_TLS(Boolean, Rel_desc *, Ofl_desc *); 488 489extern int ld_reg_check(Sym_desc *, Sym *, const char *, 490 Ifl_desc *, Ofl_desc *); 491extern int ld_reg_enter(Sym_desc *, Ofl_desc *); 492extern Sym_desc * ld_reg_find(Sym *, Ofl_desc *); 493 494extern void ld_sec_validate(Ofl_desc *); 495extern uintptr_t ld_sort_ordered(Ofl_desc *); 496extern uintptr_t ld_sort_seg_list(Ofl_desc *); 497extern uintptr_t ld_sunwmove_preprocess(Ofl_desc *); 498extern void ld_sup_atexit(Ofl_desc *, int); 499extern void ld_sup_file(Ofl_desc *, const char *, const Elf_Kind, 500 int flags, Elf *); 501extern uintptr_t ld_sup_loadso(Ofl_desc *, const char *); 502extern void ld_sup_input_done(Ofl_desc *); 503extern void ld_sup_section(Ofl_desc *, const char *, Shdr *, Word, 504 Elf_Data *, Elf *); 505extern uintptr_t ld_sup_input_section(Ofl_desc*, const char *, Shdr **, 506 Word, const char *, Elf_Scn *, Elf *); 507extern void ld_sup_start(Ofl_desc *, const Half, const char *); 508extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *); 509extern void ld_sym_adjust_vis(Sym_desc *, Ofl_desc *); 510extern int ld_sym_avl_comp(const void *, const void *); 511extern uintptr_t ld_sym_copy(Sym_desc *); 512extern Sym_desc *ld_sym_enter(const char *, Sym *, Word, Ifl_desc *, 513 Ofl_desc *, Word, Word, Word, Half, avl_index_t *); 514extern Sym_desc *ld_sym_find(const char *, Word, avl_index_t *, 515 Ofl_desc *); 516extern uintptr_t ld_sym_nodirect(Is_desc *, Ifl_desc *, Ofl_desc *); 517extern uintptr_t ld_sym_process(Is_desc *, Ifl_desc *, Ofl_desc *); 518extern uintptr_t ld_sym_resolve(Sym_desc *, Sym *, Ifl_desc *, 519 Ofl_desc *, int, Word, Word); 520extern uintptr_t ld_sym_spec(Ofl_desc *); 521 522extern Ver_desc *ld_vers_base(Ofl_desc *); 523extern uintptr_t ld_vers_check_defs(Ofl_desc *); 524extern uintptr_t ld_vers_check_need(Ofl_desc *); 525extern uintptr_t ld_vers_def_process(Is_desc *, Ifl_desc *, Ofl_desc *); 526extern Ver_desc *ld_vers_desc(const char *, Word, List *); 527extern Ver_desc *ld_vers_find(const char *, Word, List *); 528extern uintptr_t ld_vers_need_process(Is_desc *, Ifl_desc *, Ofl_desc *); 529extern void ld_vers_promote(Sym_desc *, Word, Ifl_desc *, 530 Ofl_desc *); 531extern int ld_vers_sym_process(Lm_list *, Is_desc *, Ifl_desc *); 532extern int ld_vers_verify(Ofl_desc *); 533 534extern uintptr_t add_regsym(Sym_desc *, Ofl_desc *); 535extern void *alist_append(Alist **, const void *, size_t, int); 536extern Word hashbkts(Word); 537extern Xword lcm(Xword, Xword); 538extern Listnode * list_where(List *, Word); 539 540/* 541 * AMD64 - 64-bit specific functions 542 */ 543#if (defined(__i386) || defined(__amd64)) && defined(_ELF64) 544extern uintptr_t append_amd64_unwind(Os_desc *, Ofl_desc *); 545extern uintptr_t make_amd64_unwindhdr(Ofl_desc *); 546extern uintptr_t populate_amd64_unwindhdr(Ofl_desc *); 547#endif 548 549#ifdef __cplusplus 550} 551#endif 552 553#endif /* _LIBLD_DOT_H */ 554