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