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 46 extern "C" { 47 #endif 48 49 /* 50 * Types of segment index. 51 */ 52 typedef 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 */ 70 typedef 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 */ 79 typedef 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 */ 89 typedef 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 96 typedef 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 */ 108 typedef struct reloc_list { 109 Sym_desc *rl_key2; 110 Xword rl_key3; 111 Rel_desc *rl_rsp; 112 Half rl_key1; 113 } Reloc_list; 114 115 116 typedef 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 */ 124 typedef struct _ld_heap Ld_heap; 125 struct _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 */ 138 typedef 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 */ 148 typedef 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 */ 165 typedef 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 */ 183 184 extern char *Plibpath; 185 extern char *Llibdir; 186 extern char *Ulibdir; 187 extern Ld_heap *ld_heap; 188 extern List lib_support; 189 extern int demangle_flag; 190 extern const Msg reject[]; 191 extern int Verbose; 192 193 /* 194 * For backward compatibility provide a /dev/zero file descriptor. 195 */ 196 extern int dz_fd; 197 198 /* 199 * Local functions. 200 */ 201 extern char *add_string(char *, char *); 202 extern const char *demangle(const char *); 203 204 extern void lds_atexit(Ofl_desc *, int); 205 206 extern void libld_free(void *); 207 extern void *libld_malloc(size_t); 208 extern void *libld_realloc(void *, size_t); 209 210 extern Listnode *list_appendc(List *, const void *); 211 extern Listnode *list_insertc(List *, const void *, Listnode *); 212 extern Listnode *list_prependc(List *, const void *); 213 extern Listnode *list_where(List *, Word num); 214 215 extern Sdf_desc *sdf_add(const char *, List *); 216 extern 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_got_ndx ld64_assign_got_ndx 232 #define ld_assign_got_TLS ld64_assign_got_TLS 233 #define ld_assign_plt_ndx ld64_assign_plt_ndx 234 #define ld_calc_got_offset ld64_calc_got_offset 235 #define ld_calc_plt_addr ld64_calc_plt_addr 236 #define ld_disp_errmsg ld64_disp_errmsg 237 #define ld_do_activerelocs ld64_do_activerelocs 238 #define ld_ent_check ld64_ent_check 239 #define ld_exit ld64_exit 240 #define ld_fillin_gotplt ld64_fillin_gotplt 241 #define ld_find_gotndx ld64_find_gotndx 242 #define ld_find_library ld64_find_library 243 #define ld_finish_libs ld64_finish_libs 244 #define ld_get_group ld64_get_group 245 #define ld_lib_setup ld64_lib_setup 246 #define ld_init ld64_init 247 #define ld_init_rel ld64_init_rel 248 #define ld_is_regsym ld64_is_regsym 249 #define ld_lcm ld64_lcm 250 #define ld_mach_update_odynamic ld64_mach_update_odynamic 251 #define ld_mach_eflags ld64_mach_eflags 252 #define ld_mach_make_dynamic ld64_mach_make_dynamic 253 #define ld_mach_sym_typecheck ld64_mach_sym_typecheck 254 #define ld_make_bss ld64_make_bss 255 #define ld_make_got ld64_make_got 256 #define ld_map_out ld64_map_out 257 #define ld_map_parse ld64_map_parse 258 #define ld_make_sunwbss ld64_make_sunwbss 259 #define ld_make_sunwdata ld64_make_sunwdata 260 #define ld_make_sunwmove ld64_make_sunmove 261 #define ld_open_outfile ld64_open_outfile 262 #define ld_perform_outreloc ld64_perform_outreloc 263 #define ld_place_section ld64_place_section 264 #define ld_process_archive ld64_process_archive 265 #define ld_process_files ld64_process_files 266 #define ld_process_flags ld64_process_flags 267 #define ld_process_ifl ld64_process_ifl 268 #define ld_process_open ld64_process_open 269 #define ld_process_ordered ld64_process_ordered 270 #define ld_process_sym_reloc ld64_process_sym_reloc 271 #define ld_reloc_local ld64_reloc_local 272 #define ld_reloc_GOT_relative ld64_reloc_GOT_relative 273 #define ld_reloc_GOTOP ld64_reloc_GOTOP 274 #define ld_reloc_plt ld64_reloc_plt 275 #define ld_reloc_register ld64_reloc_register 276 #define ld_reloc_remain_entry ld64_reloc_remain_entry 277 #define ld_reloc_TLS ld64_reloc_TLS 278 #define ld_reg_check ld64_reg_check 279 #define ld_reg_enter ld64_reg_enter 280 #define ld_reg_find ld64_reg_find 281 #define ld_sec_validate ld64_sec_validate 282 #define ld_sort_ordered ld64_sort_ordered 283 #define ld_sort_seg_list ld64_sort_seg_list 284 #define ld_sunwmove_preprocess ld64_sunwmove_preprocess 285 #define ld_sup_atexit ld64_sup_atexit 286 #define ld_sup_file ld64_sup_file 287 #define ld_sup_loadso ld64_sup_loadso 288 #define ld_sup_input_done ld64_sup_input_done 289 #define ld_sup_input_section ld64_sup_input_section 290 #define ld_sup_section ld64_sup_section 291 #define ld_sup_start ld64_sup_start 292 #define ld_sym_add_u ld64_sym_add_u 293 #define ld_sym_adjust_vis ld64_sym_adjust_vis 294 #define ld_sym_avl_comp ld64_sym_avl_comp 295 #define ld_sym_copy ld64_sym_copy 296 #define ld_sym_enter ld64_sym_enter 297 #define ld_sym_find ld64_sym_find 298 #define ld_sym_nodirect ld64_sym_nodirect 299 #define ld_sym_process ld64_sym_process 300 #define ld_sym_resolve ld64_sym_resolve 301 #define ld_sym_spec ld64_sym_spec 302 #define ld_vers_base ld64_vers_base 303 #define ld_vers_check_defs ld64_vers_check_defs 304 #define ld_vers_check_need ld64_vers_check_need 305 #define ld_vers_def_process ld64_vers_def_process 306 #define ld_vers_desc ld64_vers_desc 307 #define ld_vers_find ld64_vers_find 308 #define ld_vers_need_process ld64_vers_need_process 309 #define ld_vers_promote ld64_vers_promote 310 #define ld_vers_sym_process ld64_vers_sym_process 311 #define ld_vers_verify ld64_vers_verify 312 313 #else 314 315 #define ld_add_actrel ld32_add_actrel 316 #define ld_add_libdir ld32_add_libdir 317 #define ld_add_outrel ld32_add_outrel 318 #define ld_adj_movereloc ld32_adj_movereloc 319 #define ld_am_I_partial ld32_am_I_partial 320 #define ld_ar_member ld32_ar_member 321 #define ld_ar_setup ld32_ar_setup 322 #if defined(sparc) 323 #define ld_allocate_got ld32_allocate_got 324 #endif 325 #define ld_assign_got ld32_assign_got 326 #define ld_assign_got_ndx ld32_assign_got_ndx 327 #define ld_assign_got_TLS ld32_assign_got_TLS 328 #define ld_assign_plt_ndx ld32_assign_plt_ndx 329 #define ld_calc_got_offset ld32_calc_got_offset 330 #define ld_calc_plt_addr ld32_calc_plt_addr 331 #define ld_disp_errmsg ld32_disp_errmsg 332 #define ld_do_activerelocs ld32_do_activerelocs 333 #define ld_ent_check ld32_ent_check 334 #define ld_exit ld32_exit 335 #define ld_fillin_gotplt ld32_fillin_gotplt 336 #define ld_find_gotndx ld32_find_gotndx 337 #define ld_find_library ld32_find_library 338 #define ld_finish_libs ld32_finish_libs 339 #define ld_get_group ld32_get_group 340 #define ld_lib_setup ld32_lib_setup 341 #define ld_init ld32_init 342 #define ld_init_rel ld32_init_rel 343 #define ld_is_regsym ld32_is_regsym 344 #define ld_lcm ld32_lcm 345 #define ld_mach_update_odynamic ld32_mach_update_odynamic 346 #define ld_mach_eflags ld32_mach_eflags 347 #define ld_mach_make_dynamic ld32_mach_make_dynamic 348 #define ld_mach_sym_typecheck ld32_mach_sym_typecheck 349 #define ld_make_bss ld32_make_bss 350 #define ld_make_got ld32_make_got 351 #define ld_map_out ld32_map_out 352 #define ld_map_parse ld32_map_parse 353 #define ld_make_sunwbss ld32_make_sunwbss 354 #define ld_make_sunwdata ld32_make_sunwdata 355 #define ld_make_sunwmove ld32_make_sunmove 356 #define ld_open_outfile ld32_open_outfile 357 #define ld_perform_outreloc ld32_perform_outreloc 358 #define ld_place_section ld32_place_section 359 #define ld_process_archive ld32_process_archive 360 #define ld_process_files ld32_process_files 361 #define ld_process_flags ld32_process_flags 362 #define ld_process_ifl ld32_process_ifl 363 #define ld_process_open ld32_process_open 364 #define ld_process_ordered ld32_process_ordered 365 #define ld_process_sym_reloc ld32_process_sym_reloc 366 #define ld_reloc_local ld32_reloc_local 367 #define ld_reloc_GOT_relative ld32_reloc_GOT_relative 368 #define ld_reloc_GOTOP ld32_reloc_GOTOP 369 #define ld_reloc_plt ld32_reloc_plt 370 #define ld_reloc_register ld32_reloc_register 371 #define ld_reloc_remain_entry ld32_reloc_remain_entry 372 #define ld_reloc_TLS ld32_reloc_TLS 373 #define ld_reg_check ld32_reg_check 374 #define ld_reg_enter ld32_reg_enter 375 #define ld_reg_find ld32_reg_find 376 #define ld_sec_validate ld32_sec_validate 377 #define ld_sort_ordered ld32_sort_ordered 378 #define ld_sort_seg_list ld32_sort_seg_list 379 #define ld_sunwmove_preprocess ld32_sunwmove_preprocess 380 #define ld_sup_atexit ld32_sup_atexit 381 #define ld_sup_file ld32_sup_file 382 #define ld_sup_loadso ld32_sup_loadso 383 #define ld_sup_input_done ld32_sup_input_done 384 #define ld_sup_input_section ld32_sup_input_section 385 #define ld_sup_section ld32_sup_section 386 #define ld_sup_start ld32_sup_start 387 #define ld_sym_add_u ld32_sym_add_u 388 #define ld_sym_adjust_vis ld32_sym_adjust_vis 389 #define ld_sym_avl_comp ld32_sym_avl_comp 390 #define ld_sym_copy ld32_sym_copy 391 #define ld_sym_enter ld32_sym_enter 392 #define ld_sym_find ld32_sym_find 393 #define ld_sym_nodirect ld32_sym_nodirect 394 #define ld_sym_process ld32_sym_process 395 #define ld_sym_resolve ld32_sym_resolve 396 #define ld_sym_spec ld32_sym_spec 397 #define ld_vers_base ld32_vers_base 398 #define ld_vers_check_defs ld32_vers_check_defs 399 #define ld_vers_check_need ld32_vers_check_need 400 #define ld_vers_def_process ld32_vers_def_process 401 #define ld_vers_desc ld32_vers_desc 402 #define ld_vers_find ld32_vers_find 403 #define ld_vers_need_process ld32_vers_need_process 404 #define ld_vers_promote ld32_vers_promote 405 #define ld_vers_sym_process ld32_vers_sym_process 406 #define ld_vers_verify ld32_vers_verify 407 408 #endif 409 410 extern uintptr_t dbg_setup(const char *, Dbg_desc *, const char **, int); 411 412 extern uintptr_t ld_add_actrel(Word, Rel_desc *, Ofl_desc *); 413 extern uintptr_t ld_add_libdir(Ofl_desc *, const char *); 414 extern uintptr_t ld_add_outrel(Word, Rel_desc *, Ofl_desc *); 415 extern void ld_adj_movereloc(Ofl_desc *, Rel_desc *); 416 extern Sym_desc * ld_am_I_partial(Rel_desc *, Xword); 417 extern void ld_ar_member(Ar_desc *, Elf_Arsym *, Ar_aux *, 418 Ar_mem *); 419 extern Ar_desc *ld_ar_setup(const char *, Elf *, Ofl_desc *); 420 #if defined(sparc) 421 extern uintptr_t ld_allocate_got(Ofl_desc *); 422 #endif 423 extern uintptr_t ld_assign_got(Ofl_desc *, Sym_desc *); 424 extern uintptr_t ld_assign_got_ndx(List *, Gotndx *, Gotref, Ofl_desc *, 425 Rel_desc *, Sym_desc *); 426 extern uintptr_t ld_assign_got_TLS(Boolean, Rel_desc *, Ofl_desc *, 427 Sym_desc *, Gotndx *, Gotref, Word, Word, 428 Word, Word); 429 extern void ld_assign_plt_ndx(Sym_desc *, Ofl_desc *); 430 431 extern Xword ld_calc_got_offset(Rel_desc *, Ofl_desc *); 432 extern Xword ld_calc_plt_addr(Sym_desc *, Ofl_desc *); 433 434 extern void ld_disp_errmsg(const char *, Rel_desc *, Ofl_desc *); 435 extern uintptr_t ld_do_activerelocs(Ofl_desc *); 436 437 extern void ld_ent_check(Ofl_desc *); 438 extern int ld_exit(Ofl_desc *); 439 440 extern uintptr_t ld_fillin_gotplt(Ofl_desc *); 441 extern Gotndx * ld_find_gotndx(List *, Gotref, Ofl_desc *, Rel_desc *); 442 extern uintptr_t ld_find_library(const char *, Ofl_desc *); 443 extern uintptr_t ld_finish_libs(Ofl_desc *); 444 445 extern Group_desc * ld_get_group(Ofl_desc *, Is_desc *); 446 447 extern uintptr_t ld_lib_setup(Ofl_desc *); 448 449 extern void ld_init(Ofl_desc *); 450 extern Word ld_init_rel(Rel_desc *, void *); 451 extern const char *ld_is_regsym(Ofl_desc *, Ifl_desc *, Sym *, 452 const char *, int, Word, const char *, Word *); 453 454 extern Xword ld_lcm(Xword, Xword); 455 456 extern void ld_mach_update_odynamic(Ofl_desc *, Dyn **); 457 extern void ld_mach_eflags(Ehdr *, Ofl_desc *); 458 extern void ld_mach_make_dynamic(Ofl_desc *, size_t *); 459 extern int ld_mach_sym_typecheck(Sym_desc *, Sym *, Ifl_desc *, 460 Ofl_desc *); 461 extern uintptr_t ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type); 462 extern uintptr_t ld_make_got(Ofl_desc *); 463 extern void ld_map_out(Ofl_desc *); 464 extern uintptr_t ld_map_parse(const char *, Ofl_desc *); 465 extern uintptr_t ld_make_sunwbss(Ofl_desc *, size_t, Xword); 466 extern uintptr_t ld_make_sunwdata(Ofl_desc *, size_t, Xword); 467 extern uintptr_t ld_make_sunwmove(Ofl_desc *, int); 468 469 extern uintptr_t ld_open_outfile(Ofl_desc *); 470 471 extern uintptr_t ld_perform_outreloc(Rel_desc *, Ofl_desc *); 472 extern Os_desc * ld_place_section(Ofl_desc *, Is_desc *, int, Word); 473 extern uintptr_t ld_process_archive(const char *, int, Ar_desc *, 474 Ofl_desc *); 475 extern uintptr_t ld_process_files(Ofl_desc *, int, char **); 476 extern uintptr_t ld_process_flags(Ofl_desc *, int, char **); 477 extern Ifl_desc *ld_process_ifl(const char *, const char *, int, Elf *, 478 Half, Ofl_desc *, Rej_desc *); 479 extern Ifl_desc *ld_process_open(const char *, size_t, int, Ofl_desc *, 480 Half, Rej_desc *); 481 extern uintptr_t ld_process_ordered(Ifl_desc *, Ofl_desc *, Word, Word); 482 extern uintptr_t ld_process_sym_reloc(Ofl_desc *, Rel_desc *, Rel *, 483 Is_desc *, const char *); 484 485 extern uintptr_t ld_reloc_local(Rel_desc *, Ofl_desc *); 486 extern uintptr_t ld_reloc_GOT_relative(Boolean, Rel_desc *, Ofl_desc *); 487 extern uintptr_t ld_reloc_GOTOP(Boolean, Rel_desc *, Ofl_desc *); 488 extern uintptr_t ld_reloc_plt(Rel_desc *, Ofl_desc *); 489 extern uintptr_t ld_reloc_register(Rel_desc *, Is_desc *, Ofl_desc *); 490 extern void ld_reloc_remain_entry(Rel_desc *, Os_desc *, 491 Ofl_desc *); 492 extern uintptr_t ld_reloc_TLS(Boolean, Rel_desc *, Ofl_desc *); 493 494 extern int ld_reg_check(Sym_desc *, Sym *, const char *, 495 Ifl_desc *, Ofl_desc *); 496 extern int ld_reg_enter(Sym_desc *, Ofl_desc *); 497 extern Sym_desc * ld_reg_find(Sym *, Ofl_desc *); 498 499 extern void ld_sec_validate(Ofl_desc *); 500 extern uintptr_t ld_sort_ordered(Ofl_desc *); 501 extern uintptr_t ld_sort_seg_list(Ofl_desc *); 502 extern uintptr_t ld_sunwmove_preprocess(Ofl_desc *); 503 extern void ld_sup_atexit(Ofl_desc *, int); 504 extern void ld_sup_file(Ofl_desc *, const char *, const Elf_Kind, 505 int flags, Elf *); 506 extern uintptr_t ld_sup_loadso(Ofl_desc *, const char *); 507 extern void ld_sup_input_done(Ofl_desc *); 508 extern void ld_sup_section(Ofl_desc *, const char *, Shdr *, Word, 509 Elf_Data *, Elf *); 510 extern uintptr_t ld_sup_input_section(Ofl_desc*, const char *, Shdr **, 511 Word, const char *, Elf_Scn *, Elf *); 512 extern void ld_sup_start(Ofl_desc *, const Half, const char *); 513 extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *); 514 extern void ld_sym_adjust_vis(Sym_desc *, Ofl_desc *); 515 extern int ld_sym_avl_comp(const void *, const void *); 516 extern uintptr_t ld_sym_copy(Sym_desc *); 517 extern Sym_desc *ld_sym_enter(const char *, Sym *, Word, Ifl_desc *, 518 Ofl_desc *, Word, Word, Word, Half, avl_index_t *); 519 extern Sym_desc *ld_sym_find(const char *, Word, avl_index_t *, 520 Ofl_desc *); 521 extern uintptr_t ld_sym_nodirect(Is_desc *, Ifl_desc *, Ofl_desc *); 522 extern uintptr_t ld_sym_process(Is_desc *, Ifl_desc *, Ofl_desc *); 523 extern uintptr_t ld_sym_resolve(Sym_desc *, Sym *, Ifl_desc *, 524 Ofl_desc *, int, Word, Word); 525 extern uintptr_t ld_sym_spec(Ofl_desc *); 526 527 extern Ver_desc *ld_vers_base(Ofl_desc *); 528 extern uintptr_t ld_vers_check_defs(Ofl_desc *); 529 extern uintptr_t ld_vers_check_need(Ofl_desc *); 530 extern uintptr_t ld_vers_def_process(Is_desc *, Ifl_desc *, Ofl_desc *); 531 extern Ver_desc *ld_vers_desc(const char *, Word, List *); 532 extern Ver_desc *ld_vers_find(const char *, Word, List *); 533 extern uintptr_t ld_vers_need_process(Is_desc *, Ifl_desc *, Ofl_desc *); 534 extern void ld_vers_promote(Sym_desc *, Word, Ifl_desc *, 535 Ofl_desc *); 536 extern int ld_vers_sym_process(Lm_list *, Is_desc *, Ifl_desc *); 537 extern int ld_vers_verify(Ofl_desc *); 538 539 extern uintptr_t add_regsym(Sym_desc *, Ofl_desc *); 540 extern void *alist_append(Alist **, const void *, size_t, int); 541 extern Word hashbkts(Word); 542 extern Xword lcm(Xword, Xword); 543 extern Listnode * list_where(List *, Word); 544 545 /* 546 * AMD64 - 64-bit specific functions 547 */ 548 #if (defined(__i386) || defined(__amd64)) && defined(_ELF64) 549 extern uintptr_t append_amd64_unwind(Os_desc *, Ofl_desc *); 550 extern uintptr_t make_amd64_unwindhdr(Ofl_desc *); 551 extern uintptr_t populate_amd64_unwindhdr(Ofl_desc *); 552 #endif 553 554 #ifdef __cplusplus 555 } 556 #endif 557 558 #endif /* _LIBLD_DOT_H */ 559