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 2007 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(__x86) && defined(_ELF64) 56 LD_LRODATA, LD_LDATA, 57 #endif 58 LD_DYN, LD_DTRACE, LD_SUNWBSS, LD_TLS, 59 #if defined(__x86) && defined(_ELF64) 60 LD_UNWIND, 61 #endif 62 LD_NOTE, 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 /* 144 * Per-symbol filtee descriptor. This associates symbol definitions with 145 * their filtees. 146 */ 147 typedef struct { 148 Sym_desc *sft_sdp; /* symbol descriptor */ 149 Aliste sft_off; /* offset into dtstr descriptor */ 150 } Sfltr_desc; 151 152 /* 153 * Define Alist initialization sizes. 154 */ 155 #define AL_CNT_DFLTR 4 /* ofl_dtsfltrs initial alist count */ 156 #define AL_CNT_GROUP 20 /* ifl_groups initial alist count */ 157 #define AL_CNT_SFLTR 20 /* ofl_symfltrs initial alist count */ 158 #define AL_CNT_OSDESC 40 /* sg_osdescs initial alist count */ 159 #define AL_CNT_SECORDER 40 /* sg_secorder initial alist count */ 160 161 /* 162 * Return codes for {tls|got}_fixups() routines 163 */ 164 typedef enum { 165 FIX_ERROR, /* fatal error - time to punt */ 166 FIX_DONE, /* relocation done - no further processing required */ 167 FIX_RELOC /* do_reloc() relocation processing required */ 168 } Fixupret; 169 170 #ifndef FILENAME_MAX 171 #define FILENAME_MAX BUFSIZ /* maximum length of a path name */ 172 #endif 173 174 /* 175 * We pad the end of the .dynstr section with a block of DYNSTR_EXTRA_PAD 176 * bytes, and we insert DYNAMIC_EXTRA_ELTS unused items into the 177 * .dynamic section (with value DT_NULL). This provides the resources needed 178 * to add and/or alter string items in the .dynamic section, such as runpath. 179 */ 180 #define DYNSTR_EXTRA_PAD 512 181 #define DYNAMIC_EXTRA_ELTS 10 182 183 /* 184 * Relocation buckets are sized based on the number of input relocations and 185 * the following constants. 186 */ 187 #define REL_HAIDESCNO 1000 /* high water mark active buckets */ 188 #define REL_LAIDESCNO 50 /* low water mark active buckets */ 189 #define REL_HOIDESCNO 500 /* high water mark output buckets */ 190 #define REL_LOIDESCNO 10 /* low water mark output buckets */ 191 192 extern char *Plibpath; 193 extern char *Llibdir; 194 extern char *Ulibdir; 195 extern Ld_heap *ld_heap; 196 extern List lib_support; 197 extern int demangle_flag; 198 extern const Msg reject[]; 199 extern int Verbose; 200 extern const int ldynsym_symtype[STT_NUM]; 201 extern const int dynsymsort_symtype[STT_NUM]; 202 203 /* 204 * Given a symbol of a type that is allowed within a .SUNW_dynsymsort or 205 * .SUNW_dyntlssort section, examine the symbol attributes to determine 206 * if this particular symbol should be included or not. 207 * 208 * entry: 209 * The symbol must have an allowed type: Either a type verified by 210 * dynsymsort_symtype[] or STT_TLS. 211 * 212 * _sdp - Pointer to symbol descriptor 213 * _sym - Pointer to symbol referenced by _sdp. 214 * 215 * _sym is derivable from _sdp: _sdp->sd_sym 216 * However, most callers assign it to a local variable for efficiency, 217 * and this macro allows such a variable to be used within. If you 218 * don't have such a variable, supply _sdp->sd_sym. 219 * 220 * The tests used require some explanation: 221 * 222 * (_sdp->sd_flags & FLG_SY_DYNSORT) 223 * Some special symbols are kept even if they don't meet the 224 * usual requirements. These symbols have the FLG_SY_DYNSORT 225 * bit set. If this bit isn't set then we look at the other 226 * attributes. 227 * 228 * ((_sdp->sd_ref != REF_DYN_NEED) || (_sdp->sd_flags & FLG_SY_MVTOCOMM)) 229 * We do not want to include symbols that are not defined within 230 * the object we are creating. REF_DYN_NEED corresponds to those 231 * UNDEF items. However, if the symbol is the target of a copy 232 * relocation, then it effectively becomes defined within the 233 * object after all. FLG_SY_MVTOCOMM indicates a copy relocation, 234 * and prevents us from culling those exceptions. 235 * 236 * (_sym->st_size != 0) 237 * Symbols with 0 length are labels injected by the compilers 238 * or the linker for purposes of code generation, and do 239 * not directly correspond to actual code. In fact, most of the 240 * symbols we mark with FLG_SY_DYNSORT need that flag set because 241 * they have size 0. This size test filters out the others. 242 * 243 * !(_sdp->sd_flags & FLG_SY_NODYNSORT) 244 * Some symbols are not kept, even though they do meet the usual 245 * requirements. These symbols have FLG_SY_NODYNSORT set. 246 * For example, if there are weak and non-weak versions of a given 247 * symbol, we only want to keep one of them. So, we set 248 * FLG_SY_NODYNSORT on the one we don't want. 249 */ 250 #define DYNSORT_TEST_ATTR(_sdp, _sym) \ 251 ((_sdp->sd_flags & FLG_SY_DYNSORT) || \ 252 (((_sdp->sd_ref != REF_DYN_NEED) || \ 253 (_sdp->sd_flags & FLG_SY_MVTOCOMM)) && \ 254 (_sym->st_size != 0) && \ 255 !(_sdp->sd_flags & FLG_SY_NODYNSORT))) 256 257 /* 258 * We use output section descriptor counters to add up the number of 259 * symbol indexes to put in the .SUNW_dynsort and .SUNW_dyntlssort sections. 260 * Non-TLS symbols are counted by ofl->ofl_dynsymsortcnt, while TLS symbols are 261 * counted by ofl->ofl_dyntlssortcnt. This computation is done inline in 262 * several places. The DYNSORT_COUNT macro allows us to generate this from 263 * a single description. 264 * 265 * entry: 266 * _sdp, _sym - As per DYNSORT_TEST_ATTR 267 * _type - Type of symbol (STT_*) 268 * _inc_or_dec_op - Either ++, or --. This specifies the operation 269 * to be applied to the counter, and determines whether we 270 * are adding, or removing, a symbol from .SUNW_dynsymsort. 271 * 272 * Note that _type is derivable from _sym: ELF_ST_TYPE(_sdp->sd_sym->st_info). 273 * Most callers already have it in a variable, so this allows us to use that 274 * variable. If you don't have such a variable, use ELF_ST_TYPE() as shown. 275 */ 276 #define DYNSORT_COUNT(_sdp, _sym, _type, _inc_or_dec_op) \ 277 { \ 278 Word *_cnt_var; \ 279 \ 280 if (dynsymsort_symtype[_type]) { /* Non-TLS counter */ \ 281 _cnt_var = &ofl->ofl_dynsymsortcnt; \ 282 } else if ((_type) == STT_TLS) { /* TLS counter */ \ 283 _cnt_var = &ofl->ofl_dyntlssortcnt; \ 284 } else { /* Don't count this symbol */ \ 285 _cnt_var = NULL; \ 286 } \ 287 if ((_cnt_var != NULL) && DYNSORT_TEST_ATTR(_sdp, _sym)) \ 288 (*_cnt_var)_inc_or_dec_op; /* Increment/Decrement */ \ 289 } 290 291 292 /* 293 * For backward compatibility provide a /dev/zero file descriptor. 294 */ 295 extern int dz_fd; 296 297 /* 298 * Local functions. 299 */ 300 extern char *add_string(char *, char *); 301 extern const char *demangle(const char *); 302 303 extern void lds_atexit(Ofl_desc *, int); 304 305 extern void libld_free(void *); 306 extern void *libld_malloc(size_t); 307 extern void *libld_realloc(void *, size_t); 308 309 extern Listnode *list_appendc(List *, const void *); 310 extern Listnode *list_insertc(List *, const void *, Listnode *); 311 extern Listnode *list_prependc(List *, const void *); 312 extern Listnode *list_where(List *, Word num); 313 314 extern Sdf_desc *sdf_add(const char *, List *); 315 extern Sdf_desc *sdf_find(const char *, List *); 316 317 #if defined(_ELF64) 318 319 #define ld_add_actrel ld64_add_actrel 320 #define ld_add_libdir ld64_add_libdir 321 #define ld_add_outrel ld64_add_outrel 322 #define ld_adj_movereloc ld64_adj_movereloc 323 #define ld_am_I_partial ld64_am_I_partial 324 #define ld_ar_member ld64_ar_member 325 #define ld_ar_setup ld64_ar_setup 326 #if defined(__sparc) 327 #define ld_allocate_got ld64_allocate_got 328 #endif 329 #define ld_assign_got ld64_assign_got 330 #define ld_assign_got_ndx ld64_assign_got_ndx 331 #define ld_assign_got_TLS ld64_assign_got_TLS 332 #define ld_assign_plt_ndx ld64_assign_plt_ndx 333 #define ld_calc_got_offset ld64_calc_got_offset 334 #define ld_calc_plt_addr ld64_calc_plt_addr 335 #define ld_disp_errmsg ld64_disp_errmsg 336 #define ld_do_activerelocs ld64_do_activerelocs 337 #define ld_ent_check ld64_ent_check 338 #define ld_exit ld64_exit 339 #define ld_fillin_gotplt ld64_fillin_gotplt 340 #define ld_find_gotndx ld64_find_gotndx 341 #define ld_find_library ld64_find_library 342 #define ld_finish_libs ld64_finish_libs 343 #define ld_get_group ld64_get_group 344 #define ld_lib_setup ld64_lib_setup 345 #define ld_init ld64_init 346 #define ld_init_rel ld64_init_rel 347 #define ld_is_regsym ld64_is_regsym 348 #define ld_lcm ld64_lcm 349 #define ld_mach_update_odynamic ld64_mach_update_odynamic 350 #define ld_mach_eflags ld64_mach_eflags 351 #define ld_mach_make_dynamic ld64_mach_make_dynamic 352 #define ld_mach_sym_typecheck ld64_mach_sym_typecheck 353 #define ld_make_bss ld64_make_bss 354 #define ld_make_data ld64_make_data 355 #define ld_make_got ld64_make_got 356 #define ld_make_sunwbss ld64_make_sunwbss 357 #define ld_make_sunwdata ld64_make_sunwdata 358 #define ld_make_sunwmove ld64_make_sunmove 359 #define ld_make_text ld64_make_text 360 #define ld_map_out ld64_map_out 361 #define ld_map_parse ld64_map_parse 362 #define ld_open_outfile ld64_open_outfile 363 #define ld_perform_outreloc ld64_perform_outreloc 364 #define ld_place_section ld64_place_section 365 #define ld_process_archive ld64_process_archive 366 #define ld_process_files ld64_process_files 367 #define ld_process_flags ld64_process_flags 368 #define ld_process_ifl ld64_process_ifl 369 #define ld_process_ordered ld64_process_ordered 370 #define ld_process_sym_reloc ld64_process_sym_reloc 371 #define ld_reloc_local ld64_reloc_local 372 #define ld_reloc_GOT_relative ld64_reloc_GOT_relative 373 #define ld_reloc_GOTOP ld64_reloc_GOTOP 374 #define ld_reloc_plt ld64_reloc_plt 375 #define ld_reloc_register ld64_reloc_register 376 #define ld_reloc_remain_entry ld64_reloc_remain_entry 377 #define ld_reloc_TLS ld64_reloc_TLS 378 #define ld_reg_check ld64_reg_check 379 #define ld_reg_enter ld64_reg_enter 380 #define ld_reg_find ld64_reg_find 381 #define ld_sec_validate ld64_sec_validate 382 #define ld_sort_ordered ld64_sort_ordered 383 #define ld_sort_seg_list ld64_sort_seg_list 384 #define ld_sunwmove_preprocess ld64_sunwmove_preprocess 385 #define ld_sup_atexit ld64_sup_atexit 386 #define ld_sup_open ld64_sup_open 387 #define ld_sup_file ld64_sup_file 388 #define ld_sup_loadso ld64_sup_loadso 389 #define ld_sup_input_done ld64_sup_input_done 390 #define ld_sup_input_section ld64_sup_input_section 391 #define ld_sup_section ld64_sup_section 392 #define ld_sup_start ld64_sup_start 393 #define ld_sym_add_u ld64_sym_add_u 394 #define ld_sym_adjust_vis ld64_sym_adjust_vis 395 #define ld_sym_avl_comp ld64_sym_avl_comp 396 #define ld_sym_copy ld64_sym_copy 397 #define ld_sym_enter ld64_sym_enter 398 #define ld_sym_find ld64_sym_find 399 #define ld_sym_nodirect ld64_sym_nodirect 400 #define ld_sym_process ld64_sym_process 401 #define ld_sym_resolve ld64_sym_resolve 402 #define ld_sym_spec ld64_sym_spec 403 #define ld_vers_base ld64_vers_base 404 #define ld_vers_check_defs ld64_vers_check_defs 405 #define ld_vers_check_need ld64_vers_check_need 406 #define ld_vers_def_process ld64_vers_def_process 407 #define ld_vers_desc ld64_vers_desc 408 #define ld_vers_find ld64_vers_find 409 #define ld_vers_need_process ld64_vers_need_process 410 #define ld_vers_promote ld64_vers_promote 411 #define ld_vers_sym_process ld64_vers_sym_process 412 #define ld_vers_verify ld64_vers_verify 413 414 #else 415 416 #define ld_add_actrel ld32_add_actrel 417 #define ld_add_libdir ld32_add_libdir 418 #define ld_add_outrel ld32_add_outrel 419 #define ld_adj_movereloc ld32_adj_movereloc 420 #define ld_am_I_partial ld32_am_I_partial 421 #define ld_ar_member ld32_ar_member 422 #define ld_ar_setup ld32_ar_setup 423 #if defined(__sparc) 424 #define ld_allocate_got ld32_allocate_got 425 #endif 426 #define ld_assign_got ld32_assign_got 427 #define ld_assign_got_ndx ld32_assign_got_ndx 428 #define ld_assign_got_TLS ld32_assign_got_TLS 429 #define ld_assign_plt_ndx ld32_assign_plt_ndx 430 #define ld_calc_got_offset ld32_calc_got_offset 431 #define ld_calc_plt_addr ld32_calc_plt_addr 432 #define ld_disp_errmsg ld32_disp_errmsg 433 #define ld_do_activerelocs ld32_do_activerelocs 434 #define ld_ent_check ld32_ent_check 435 #define ld_exit ld32_exit 436 #define ld_fillin_gotplt ld32_fillin_gotplt 437 #define ld_find_gotndx ld32_find_gotndx 438 #define ld_find_library ld32_find_library 439 #define ld_finish_libs ld32_finish_libs 440 #define ld_get_group ld32_get_group 441 #define ld_lib_setup ld32_lib_setup 442 #define ld_init ld32_init 443 #define ld_init_rel ld32_init_rel 444 #define ld_is_regsym ld32_is_regsym 445 #define ld_lcm ld32_lcm 446 #define ld_mach_update_odynamic ld32_mach_update_odynamic 447 #define ld_mach_eflags ld32_mach_eflags 448 #define ld_mach_make_dynamic ld32_mach_make_dynamic 449 #define ld_mach_sym_typecheck ld32_mach_sym_typecheck 450 #define ld_make_bss ld32_make_bss 451 #define ld_make_data ld32_make_data 452 #define ld_make_got ld32_make_got 453 #define ld_make_sunwbss ld32_make_sunwbss 454 #define ld_make_sunwdata ld32_make_sunwdata 455 #define ld_make_sunwmove ld32_make_sunmove 456 #define ld_make_text ld32_make_text 457 #define ld_map_out ld32_map_out 458 #define ld_map_parse ld32_map_parse 459 #define ld_open_outfile ld32_open_outfile 460 #define ld_perform_outreloc ld32_perform_outreloc 461 #define ld_place_section ld32_place_section 462 #define ld_process_archive ld32_process_archive 463 #define ld_process_files ld32_process_files 464 #define ld_process_flags ld32_process_flags 465 #define ld_process_ifl ld32_process_ifl 466 #define ld_process_ordered ld32_process_ordered 467 #define ld_process_sym_reloc ld32_process_sym_reloc 468 #define ld_reloc_local ld32_reloc_local 469 #define ld_reloc_GOT_relative ld32_reloc_GOT_relative 470 #define ld_reloc_GOTOP ld32_reloc_GOTOP 471 #define ld_reloc_plt ld32_reloc_plt 472 #define ld_reloc_register ld32_reloc_register 473 #define ld_reloc_remain_entry ld32_reloc_remain_entry 474 #define ld_reloc_TLS ld32_reloc_TLS 475 #define ld_reg_check ld32_reg_check 476 #define ld_reg_enter ld32_reg_enter 477 #define ld_reg_find ld32_reg_find 478 #define ld_sec_validate ld32_sec_validate 479 #define ld_sort_ordered ld32_sort_ordered 480 #define ld_sort_seg_list ld32_sort_seg_list 481 #define ld_sunwmove_preprocess ld32_sunwmove_preprocess 482 #define ld_sup_atexit ld32_sup_atexit 483 #define ld_sup_open ld32_sup_open 484 #define ld_sup_file ld32_sup_file 485 #define ld_sup_loadso ld32_sup_loadso 486 #define ld_sup_input_done ld32_sup_input_done 487 #define ld_sup_input_section ld32_sup_input_section 488 #define ld_sup_section ld32_sup_section 489 #define ld_sup_start ld32_sup_start 490 #define ld_sym_add_u ld32_sym_add_u 491 #define ld_sym_adjust_vis ld32_sym_adjust_vis 492 #define ld_sym_avl_comp ld32_sym_avl_comp 493 #define ld_sym_copy ld32_sym_copy 494 #define ld_sym_enter ld32_sym_enter 495 #define ld_sym_find ld32_sym_find 496 #define ld_sym_nodirect ld32_sym_nodirect 497 #define ld_sym_process ld32_sym_process 498 #define ld_sym_resolve ld32_sym_resolve 499 #define ld_sym_spec ld32_sym_spec 500 #define ld_vers_base ld32_vers_base 501 #define ld_vers_check_defs ld32_vers_check_defs 502 #define ld_vers_check_need ld32_vers_check_need 503 #define ld_vers_def_process ld32_vers_def_process 504 #define ld_vers_desc ld32_vers_desc 505 #define ld_vers_find ld32_vers_find 506 #define ld_vers_need_process ld32_vers_need_process 507 #define ld_vers_promote ld32_vers_promote 508 #define ld_vers_sym_process ld32_vers_sym_process 509 #define ld_vers_verify ld32_vers_verify 510 511 #endif 512 513 extern uintptr_t dbg_setup(const char *, Dbg_desc *, const char **, int); 514 515 extern uintptr_t ld_add_actrel(Word, Rel_desc *, Ofl_desc *); 516 extern uintptr_t ld_add_libdir(Ofl_desc *, const char *); 517 extern uintptr_t ld_add_outrel(Word, Rel_desc *, Ofl_desc *); 518 extern void ld_adj_movereloc(Ofl_desc *, Rel_desc *); 519 extern Sym_desc * ld_am_I_partial(Rel_desc *, Xword); 520 extern void ld_ar_member(Ar_desc *, Elf_Arsym *, Ar_aux *, 521 Ar_mem *); 522 extern Ar_desc *ld_ar_setup(const char *, Elf *, Ofl_desc *); 523 #if defined(__sparc) 524 extern uintptr_t ld_allocate_got(Ofl_desc *); 525 #endif 526 extern uintptr_t ld_assign_got(Ofl_desc *, Sym_desc *); 527 extern uintptr_t ld_assign_got_ndx(List *, Gotndx *, Gotref, Ofl_desc *, 528 Rel_desc *, Sym_desc *); 529 extern uintptr_t ld_assign_got_TLS(Boolean, Rel_desc *, Ofl_desc *, 530 Sym_desc *, Gotndx *, Gotref, Word, Word, 531 Word, Word); 532 extern void ld_assign_plt_ndx(Sym_desc *, Ofl_desc *); 533 534 extern Xword ld_calc_got_offset(Rel_desc *, Ofl_desc *); 535 extern Xword ld_calc_plt_addr(Sym_desc *, Ofl_desc *); 536 537 extern void ld_disp_errmsg(const char *, Rel_desc *, Ofl_desc *); 538 extern uintptr_t ld_do_activerelocs(Ofl_desc *); 539 540 extern void ld_ent_check(Ofl_desc *); 541 extern int ld_exit(Ofl_desc *); 542 543 extern uintptr_t ld_fillin_gotplt(Ofl_desc *); 544 extern Gotndx * ld_find_gotndx(List *, Gotref, Ofl_desc *, Rel_desc *); 545 extern uintptr_t ld_find_library(const char *, Ofl_desc *); 546 extern uintptr_t ld_finish_libs(Ofl_desc *); 547 548 extern Group_desc * ld_get_group(Ofl_desc *, Is_desc *); 549 550 extern uintptr_t ld_lib_setup(Ofl_desc *); 551 552 extern void ld_init(Ofl_desc *); 553 extern Word ld_init_rel(Rel_desc *, void *); 554 extern const char *ld_is_regsym(Ofl_desc *, Ifl_desc *, Sym *, 555 const char *, int, Word, const char *, Word *); 556 557 extern Xword ld_lcm(Xword, Xword); 558 559 extern void ld_mach_update_odynamic(Ofl_desc *, Dyn **); 560 extern void ld_mach_eflags(Ehdr *, Ofl_desc *); 561 extern void ld_mach_make_dynamic(Ofl_desc *, size_t *); 562 extern int ld_mach_sym_typecheck(Sym_desc *, Sym *, Ifl_desc *, 563 Ofl_desc *); 564 extern uintptr_t ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type); 565 extern Is_desc *ld_make_data(Ofl_desc *, size_t); 566 extern uintptr_t ld_make_got(Ofl_desc *); 567 extern uintptr_t ld_make_sunwbss(Ofl_desc *, size_t, Xword); 568 extern uintptr_t ld_make_sunwdata(Ofl_desc *, size_t, Xword); 569 extern uintptr_t ld_make_sunwmove(Ofl_desc *, int); 570 extern Is_desc *ld_make_text(Ofl_desc *, size_t); 571 extern void ld_map_out(Ofl_desc *); 572 extern uintptr_t ld_map_parse(const char *, Ofl_desc *); 573 574 extern uintptr_t ld_open_outfile(Ofl_desc *); 575 576 extern uintptr_t ld_perform_outreloc(Rel_desc *, Ofl_desc *); 577 extern Os_desc * ld_place_section(Ofl_desc *, Is_desc *, int, Word); 578 extern uintptr_t ld_process_archive(const char *, int, Ar_desc *, 579 Ofl_desc *); 580 extern uintptr_t ld_process_files(Ofl_desc *, int, char **); 581 extern uintptr_t ld_process_flags(Ofl_desc *, int, char **); 582 extern Ifl_desc *ld_process_ifl(const char *, const char *, int, Elf *, 583 Half, Ofl_desc *, Rej_desc *); 584 extern uintptr_t ld_process_ordered(Ifl_desc *, Ofl_desc *, Word, Word); 585 extern uintptr_t ld_process_sym_reloc(Ofl_desc *, Rel_desc *, Rel *, 586 Is_desc *, const char *); 587 588 extern uintptr_t ld_reloc_local(Rel_desc *, Ofl_desc *); 589 extern uintptr_t ld_reloc_GOT_relative(Boolean, Rel_desc *, Ofl_desc *); 590 extern uintptr_t ld_reloc_GOTOP(Boolean, Rel_desc *, Ofl_desc *); 591 extern uintptr_t ld_reloc_plt(Rel_desc *, Ofl_desc *); 592 extern uintptr_t ld_reloc_register(Rel_desc *, Is_desc *, Ofl_desc *); 593 extern void ld_reloc_remain_entry(Rel_desc *, Os_desc *, 594 Ofl_desc *); 595 extern uintptr_t ld_reloc_TLS(Boolean, Rel_desc *, Ofl_desc *); 596 597 extern int ld_reg_check(Sym_desc *, Sym *, const char *, 598 Ifl_desc *, Ofl_desc *); 599 extern int ld_reg_enter(Sym_desc *, Ofl_desc *); 600 extern Sym_desc * ld_reg_find(Sym *, Ofl_desc *); 601 602 extern void ld_sec_validate(Ofl_desc *); 603 extern uintptr_t ld_sort_ordered(Ofl_desc *); 604 extern uintptr_t ld_sort_seg_list(Ofl_desc *); 605 extern uintptr_t ld_sunwmove_preprocess(Ofl_desc *); 606 extern void ld_sup_atexit(Ofl_desc *, int); 607 extern void ld_sup_open(Ofl_desc *, const char **, const char **, 608 int *, int, Elf **, Elf *ref, size_t, 609 const Elf_Kind); 610 extern void ld_sup_file(Ofl_desc *, const char *, const Elf_Kind, 611 int flags, Elf *); 612 extern uintptr_t ld_sup_loadso(Ofl_desc *, const char *); 613 extern void ld_sup_input_done(Ofl_desc *); 614 extern void ld_sup_section(Ofl_desc *, const char *, Shdr *, Word, 615 Elf_Data *, Elf *); 616 extern uintptr_t ld_sup_input_section(Ofl_desc*, Ifl_desc *, 617 const char *, Shdr **, Word, Elf_Scn *, Elf *); 618 extern void ld_sup_start(Ofl_desc *, const Half, const char *); 619 extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *, Msg); 620 extern void ld_sym_adjust_vis(Sym_desc *, Ofl_desc *); 621 extern int ld_sym_avl_comp(const void *, const void *); 622 extern uintptr_t ld_sym_copy(Sym_desc *); 623 extern Sym_desc *ld_sym_enter(const char *, Sym *, Word, Ifl_desc *, 624 Ofl_desc *, Word, Word, Word, Half, avl_index_t *); 625 extern Sym_desc *ld_sym_find(const char *, Word, avl_index_t *, 626 Ofl_desc *); 627 extern uintptr_t ld_sym_nodirect(Is_desc *, Ifl_desc *, Ofl_desc *); 628 extern uintptr_t ld_sym_process(Is_desc *, Ifl_desc *, Ofl_desc *); 629 extern uintptr_t ld_sym_resolve(Sym_desc *, Sym *, Ifl_desc *, 630 Ofl_desc *, int, Word, Word); 631 extern uintptr_t ld_sym_spec(Ofl_desc *); 632 633 extern Ver_desc *ld_vers_base(Ofl_desc *); 634 extern uintptr_t ld_vers_check_defs(Ofl_desc *); 635 extern uintptr_t ld_vers_check_need(Ofl_desc *); 636 extern uintptr_t ld_vers_def_process(Is_desc *, Ifl_desc *, Ofl_desc *); 637 extern Ver_desc *ld_vers_desc(const char *, Word, List *); 638 extern Ver_desc *ld_vers_find(const char *, Word, List *); 639 extern uintptr_t ld_vers_need_process(Is_desc *, Ifl_desc *, Ofl_desc *); 640 extern void ld_vers_promote(Sym_desc *, Word, Ifl_desc *, 641 Ofl_desc *); 642 extern int ld_vers_sym_process(Lm_list *, Is_desc *, Ifl_desc *); 643 extern int ld_vers_verify(Ofl_desc *); 644 645 extern uintptr_t add_regsym(Sym_desc *, Ofl_desc *); 646 extern void *alist_append(Alist **, const void *, size_t, int); 647 extern Word hashbkts(Word); 648 extern Xword lcm(Xword, Xword); 649 extern Listnode * list_where(List *, Word); 650 651 #if defined(__x86) && defined(_ELF64) 652 extern uintptr_t append_amd64_unwind(Os_desc *, Ofl_desc *); 653 extern uintptr_t make_amd64_unwindhdr(Ofl_desc *); 654 extern uintptr_t populate_amd64_unwindhdr(Ofl_desc *); 655 #endif 656 657 #ifdef __cplusplus 658 } 659 #endif 660 661 #endif /* _LIBLD_DOT_H */ 662