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_byteswap_Xword ld64_byteswap_Xword 334 #define ld_calc_got_offset ld64_calc_got_offset 335 #define ld_calc_plt_addr ld64_calc_plt_addr 336 #define ld_disp_errmsg ld64_disp_errmsg 337 #define ld_do_activerelocs ld64_do_activerelocs 338 #define ld_ent_check ld64_ent_check 339 #define ld_exit ld64_exit 340 #define ld_fillin_gotplt ld64_fillin_gotplt 341 #define ld_find_gotndx ld64_find_gotndx 342 #define ld_find_library ld64_find_library 343 #define ld_finish_libs ld64_finish_libs 344 #define ld_get_group ld64_get_group 345 #define ld_lib_setup ld64_lib_setup 346 #define ld_init ld64_init 347 #define ld_init_rel ld64_init_rel 348 #define ld_is_regsym ld64_is_regsym 349 #define ld_lcm ld64_lcm 350 #define ld_mach_update_odynamic ld64_mach_update_odynamic 351 #define ld_mach_eflags ld64_mach_eflags 352 #define ld_mach_make_dynamic ld64_mach_make_dynamic 353 #define ld_mach_sym_typecheck ld64_mach_sym_typecheck 354 #define ld_make_bss ld64_make_bss 355 #define ld_make_data ld64_make_data 356 #define ld_make_got ld64_make_got 357 #define ld_make_sunwbss ld64_make_sunwbss 358 #define ld_make_sunwdata ld64_make_sunwdata 359 #define ld_make_sunwmove ld64_make_sunmove 360 #define ld_make_text ld64_make_text 361 #define ld_map_out ld64_map_out 362 #define ld_map_parse ld64_map_parse 363 #define ld_open_outfile ld64_open_outfile 364 #define ld_perform_outreloc ld64_perform_outreloc 365 #define ld_place_section ld64_place_section 366 #define ld_process_archive ld64_process_archive 367 #define ld_process_files ld64_process_files 368 #define ld_process_flags ld64_process_flags 369 #define ld_process_ifl ld64_process_ifl 370 #define ld_process_ordered ld64_process_ordered 371 #define ld_process_sym_reloc ld64_process_sym_reloc 372 #define ld_reloc_local ld64_reloc_local 373 #define ld_reloc_GOT_relative ld64_reloc_GOT_relative 374 #define ld_reloc_GOTOP ld64_reloc_GOTOP 375 #define ld_reloc_plt ld64_reloc_plt 376 #define ld_reloc_register ld64_reloc_register 377 #define ld_reloc_remain_entry ld64_reloc_remain_entry 378 #define ld_reloc_TLS ld64_reloc_TLS 379 #define ld_reg_check ld64_reg_check 380 #define ld_reg_enter ld64_reg_enter 381 #define ld_reg_find ld64_reg_find 382 #define ld_sec_validate ld64_sec_validate 383 #define ld_sort_ordered ld64_sort_ordered 384 #define ld_sort_seg_list ld64_sort_seg_list 385 #define ld_sunwmove_preprocess ld64_sunwmove_preprocess 386 #define ld_sup_atexit ld64_sup_atexit 387 #define ld_sup_open ld64_sup_open 388 #define ld_sup_file ld64_sup_file 389 #define ld_sup_loadso ld64_sup_loadso 390 #define ld_sup_input_done ld64_sup_input_done 391 #define ld_sup_input_section ld64_sup_input_section 392 #define ld_sup_section ld64_sup_section 393 #define ld_sup_start ld64_sup_start 394 #define ld_sym_add_u ld64_sym_add_u 395 #define ld_sym_adjust_vis ld64_sym_adjust_vis 396 #define ld_sym_avl_comp ld64_sym_avl_comp 397 #define ld_sym_copy ld64_sym_copy 398 #define ld_sym_enter ld64_sym_enter 399 #define ld_sym_find ld64_sym_find 400 #define ld_sym_nodirect ld64_sym_nodirect 401 #define ld_sym_process ld64_sym_process 402 #define ld_sym_resolve ld64_sym_resolve 403 #define ld_sym_spec ld64_sym_spec 404 #define ld_vers_base ld64_vers_base 405 #define ld_vers_check_defs ld64_vers_check_defs 406 #define ld_vers_check_need ld64_vers_check_need 407 #define ld_vers_def_process ld64_vers_def_process 408 #define ld_vers_desc ld64_vers_desc 409 #define ld_vers_find ld64_vers_find 410 #define ld_vers_need_process ld64_vers_need_process 411 #define ld_vers_promote ld64_vers_promote 412 #define ld_vers_sym_process ld64_vers_sym_process 413 #define ld_vers_verify ld64_vers_verify 414 415 #else 416 417 #define ld_add_actrel ld32_add_actrel 418 #define ld_add_libdir ld32_add_libdir 419 #define ld_add_outrel ld32_add_outrel 420 #define ld_adj_movereloc ld32_adj_movereloc 421 #define ld_am_I_partial ld32_am_I_partial 422 #define ld_ar_member ld32_ar_member 423 #define ld_ar_setup ld32_ar_setup 424 #if defined(__sparc) 425 #define ld_allocate_got ld32_allocate_got 426 #endif 427 #define ld_assign_got ld32_assign_got 428 #define ld_assign_got_ndx ld32_assign_got_ndx 429 #define ld_assign_got_TLS ld32_assign_got_TLS 430 #define ld_assign_plt_ndx ld32_assign_plt_ndx 431 #define ld_byteswap_Xword ld32_byteswap_Xword 432 #define ld_calc_got_offset ld32_calc_got_offset 433 #define ld_calc_plt_addr ld32_calc_plt_addr 434 #define ld_disp_errmsg ld32_disp_errmsg 435 #define ld_do_activerelocs ld32_do_activerelocs 436 #define ld_ent_check ld32_ent_check 437 #define ld_exit ld32_exit 438 #define ld_fillin_gotplt ld32_fillin_gotplt 439 #define ld_find_gotndx ld32_find_gotndx 440 #define ld_find_library ld32_find_library 441 #define ld_finish_libs ld32_finish_libs 442 #define ld_get_group ld32_get_group 443 #define ld_lib_setup ld32_lib_setup 444 #define ld_init ld32_init 445 #define ld_init_rel ld32_init_rel 446 #define ld_is_regsym ld32_is_regsym 447 #define ld_lcm ld32_lcm 448 #define ld_mach_update_odynamic ld32_mach_update_odynamic 449 #define ld_mach_eflags ld32_mach_eflags 450 #define ld_mach_make_dynamic ld32_mach_make_dynamic 451 #define ld_mach_sym_typecheck ld32_mach_sym_typecheck 452 #define ld_make_bss ld32_make_bss 453 #define ld_make_data ld32_make_data 454 #define ld_make_got ld32_make_got 455 #define ld_make_sunwbss ld32_make_sunwbss 456 #define ld_make_sunwdata ld32_make_sunwdata 457 #define ld_make_sunwmove ld32_make_sunmove 458 #define ld_make_text ld32_make_text 459 #define ld_map_out ld32_map_out 460 #define ld_map_parse ld32_map_parse 461 #define ld_open_outfile ld32_open_outfile 462 #define ld_perform_outreloc ld32_perform_outreloc 463 #define ld_place_section ld32_place_section 464 #define ld_process_archive ld32_process_archive 465 #define ld_process_files ld32_process_files 466 #define ld_process_flags ld32_process_flags 467 #define ld_process_ifl ld32_process_ifl 468 #define ld_process_ordered ld32_process_ordered 469 #define ld_process_sym_reloc ld32_process_sym_reloc 470 #define ld_reloc_local ld32_reloc_local 471 #define ld_reloc_GOT_relative ld32_reloc_GOT_relative 472 #define ld_reloc_GOTOP ld32_reloc_GOTOP 473 #define ld_reloc_plt ld32_reloc_plt 474 #define ld_reloc_register ld32_reloc_register 475 #define ld_reloc_remain_entry ld32_reloc_remain_entry 476 #define ld_reloc_TLS ld32_reloc_TLS 477 #define ld_reg_check ld32_reg_check 478 #define ld_reg_enter ld32_reg_enter 479 #define ld_reg_find ld32_reg_find 480 #define ld_sec_validate ld32_sec_validate 481 #define ld_sort_ordered ld32_sort_ordered 482 #define ld_sort_seg_list ld32_sort_seg_list 483 #define ld_sunwmove_preprocess ld32_sunwmove_preprocess 484 #define ld_sup_atexit ld32_sup_atexit 485 #define ld_sup_open ld32_sup_open 486 #define ld_sup_file ld32_sup_file 487 #define ld_sup_loadso ld32_sup_loadso 488 #define ld_sup_input_done ld32_sup_input_done 489 #define ld_sup_input_section ld32_sup_input_section 490 #define ld_sup_section ld32_sup_section 491 #define ld_sup_start ld32_sup_start 492 #define ld_sym_add_u ld32_sym_add_u 493 #define ld_sym_adjust_vis ld32_sym_adjust_vis 494 #define ld_sym_avl_comp ld32_sym_avl_comp 495 #define ld_sym_copy ld32_sym_copy 496 #define ld_sym_enter ld32_sym_enter 497 #define ld_sym_find ld32_sym_find 498 #define ld_sym_nodirect ld32_sym_nodirect 499 #define ld_sym_process ld32_sym_process 500 #define ld_sym_resolve ld32_sym_resolve 501 #define ld_sym_spec ld32_sym_spec 502 #define ld_vers_base ld32_vers_base 503 #define ld_vers_check_defs ld32_vers_check_defs 504 #define ld_vers_check_need ld32_vers_check_need 505 #define ld_vers_def_process ld32_vers_def_process 506 #define ld_vers_desc ld32_vers_desc 507 #define ld_vers_find ld32_vers_find 508 #define ld_vers_need_process ld32_vers_need_process 509 #define ld_vers_promote ld32_vers_promote 510 #define ld_vers_sym_process ld32_vers_sym_process 511 #define ld_vers_verify ld32_vers_verify 512 513 #endif 514 515 extern uintptr_t dbg_setup(const char *, Dbg_desc *, const char **, int); 516 517 extern uintptr_t ld_add_actrel(Word, Rel_desc *, Ofl_desc *); 518 extern uintptr_t ld_add_libdir(Ofl_desc *, const char *); 519 extern uintptr_t ld_add_outrel(Word, Rel_desc *, Ofl_desc *); 520 extern void ld_adj_movereloc(Ofl_desc *, Rel_desc *); 521 extern Sym_desc * ld_am_I_partial(Rel_desc *, Xword); 522 extern void ld_ar_member(Ar_desc *, Elf_Arsym *, Ar_aux *, 523 Ar_mem *); 524 extern Ar_desc *ld_ar_setup(const char *, Elf *, Ofl_desc *); 525 #if defined(__sparc) 526 extern uintptr_t ld_allocate_got(Ofl_desc *); 527 #endif 528 extern uintptr_t ld_assign_got(Ofl_desc *, Sym_desc *); 529 extern uintptr_t ld_assign_got_ndx(List *, Gotndx *, Gotref, Ofl_desc *, 530 Rel_desc *, Sym_desc *); 531 extern uintptr_t ld_assign_got_TLS(Boolean, Rel_desc *, Ofl_desc *, 532 Sym_desc *, Gotndx *, Gotref, Word, Word, 533 Word, Word); 534 extern void ld_assign_plt_ndx(Sym_desc *, Ofl_desc *); 535 536 extern Xword ld_byteswap_Xword(Xword); 537 extern Xword ld_calc_got_offset(Rel_desc *, Ofl_desc *); 538 extern Xword ld_calc_plt_addr(Sym_desc *, Ofl_desc *); 539 540 extern void ld_disp_errmsg(const char *, Rel_desc *, Ofl_desc *); 541 extern uintptr_t ld_do_activerelocs(Ofl_desc *); 542 543 extern void ld_ent_check(Ofl_desc *); 544 extern int ld_exit(Ofl_desc *); 545 546 extern uintptr_t ld_fillin_gotplt(Ofl_desc *); 547 extern Gotndx * ld_find_gotndx(List *, Gotref, Ofl_desc *, Rel_desc *); 548 extern uintptr_t ld_find_library(const char *, Ofl_desc *); 549 extern uintptr_t ld_finish_libs(Ofl_desc *); 550 551 extern Group_desc * ld_get_group(Ofl_desc *, Is_desc *); 552 553 extern uintptr_t ld_lib_setup(Ofl_desc *); 554 555 extern void ld_init(Ofl_desc *); 556 extern Word ld_init_rel(Rel_desc *, void *); 557 extern const char *ld_is_regsym(Ofl_desc *, Ifl_desc *, Sym *, 558 const char *, int, Word, const char *, Word *); 559 560 extern Xword ld_lcm(Xword, Xword); 561 562 extern void ld_mach_update_odynamic(Ofl_desc *, Dyn **); 563 extern void ld_mach_eflags(Ehdr *, Ofl_desc *); 564 extern void ld_mach_make_dynamic(Ofl_desc *, size_t *); 565 extern int ld_mach_sym_typecheck(Sym_desc *, Sym *, Ifl_desc *, 566 Ofl_desc *); 567 extern uintptr_t ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type); 568 extern Is_desc *ld_make_data(Ofl_desc *, size_t); 569 extern uintptr_t ld_make_got(Ofl_desc *); 570 extern uintptr_t ld_make_sunwbss(Ofl_desc *, size_t, Xword); 571 extern uintptr_t ld_make_sunwdata(Ofl_desc *, size_t, Xword); 572 extern uintptr_t ld_make_sunwmove(Ofl_desc *, int); 573 extern Is_desc *ld_make_text(Ofl_desc *, size_t); 574 extern void ld_map_out(Ofl_desc *); 575 extern uintptr_t ld_map_parse(const char *, Ofl_desc *); 576 577 extern uintptr_t ld_open_outfile(Ofl_desc *); 578 579 extern uintptr_t ld_perform_outreloc(Rel_desc *, Ofl_desc *); 580 extern Os_desc * ld_place_section(Ofl_desc *, Is_desc *, int, Word); 581 extern uintptr_t ld_process_archive(const char *, int, Ar_desc *, 582 Ofl_desc *); 583 extern uintptr_t ld_process_files(Ofl_desc *, int, char **); 584 extern uintptr_t ld_process_flags(Ofl_desc *, int, char **); 585 extern Ifl_desc *ld_process_ifl(const char *, const char *, int, Elf *, 586 Word, Ofl_desc *, Rej_desc *); 587 extern uintptr_t ld_process_ordered(Ifl_desc *, Ofl_desc *, Word, Word); 588 extern uintptr_t ld_process_sym_reloc(Ofl_desc *, Rel_desc *, Rel *, 589 Is_desc *, const char *); 590 591 extern uintptr_t ld_reloc_local(Rel_desc *, Ofl_desc *); 592 extern uintptr_t ld_reloc_GOT_relative(Boolean, Rel_desc *, Ofl_desc *); 593 extern uintptr_t ld_reloc_GOTOP(Boolean, Rel_desc *, Ofl_desc *); 594 extern uintptr_t ld_reloc_plt(Rel_desc *, Ofl_desc *); 595 extern uintptr_t ld_reloc_register(Rel_desc *, Is_desc *, Ofl_desc *); 596 extern void ld_reloc_remain_entry(Rel_desc *, Os_desc *, 597 Ofl_desc *); 598 extern uintptr_t ld_reloc_TLS(Boolean, Rel_desc *, Ofl_desc *); 599 600 extern int ld_reg_check(Sym_desc *, Sym *, const char *, 601 Ifl_desc *, Ofl_desc *); 602 extern int ld_reg_enter(Sym_desc *, Ofl_desc *); 603 extern Sym_desc * ld_reg_find(Sym *, Ofl_desc *); 604 605 extern void ld_sec_validate(Ofl_desc *); 606 extern uintptr_t ld_sort_ordered(Ofl_desc *); 607 extern uintptr_t ld_sort_seg_list(Ofl_desc *); 608 extern uintptr_t ld_sunwmove_preprocess(Ofl_desc *); 609 extern void ld_sup_atexit(Ofl_desc *, int); 610 extern void ld_sup_open(Ofl_desc *, const char **, const char **, 611 int *, int, Elf **, Elf *ref, size_t, 612 const Elf_Kind); 613 extern void ld_sup_file(Ofl_desc *, const char *, const Elf_Kind, 614 int flags, Elf *); 615 extern uintptr_t ld_sup_loadso(Ofl_desc *, const char *); 616 extern void ld_sup_input_done(Ofl_desc *); 617 extern void ld_sup_section(Ofl_desc *, const char *, Shdr *, Word, 618 Elf_Data *, Elf *); 619 extern uintptr_t ld_sup_input_section(Ofl_desc*, Ifl_desc *, 620 const char *, Shdr **, Word, Elf_Scn *, Elf *); 621 extern void ld_sup_start(Ofl_desc *, const Half, const char *); 622 extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *, Msg); 623 extern void ld_sym_adjust_vis(Sym_desc *, Ofl_desc *); 624 extern int ld_sym_avl_comp(const void *, const void *); 625 extern uintptr_t ld_sym_copy(Sym_desc *); 626 extern Sym_desc *ld_sym_enter(const char *, Sym *, Word, Ifl_desc *, 627 Ofl_desc *, Word, Word, Word, Half, avl_index_t *); 628 extern Sym_desc *ld_sym_find(const char *, Word, avl_index_t *, 629 Ofl_desc *); 630 extern uintptr_t ld_sym_nodirect(Is_desc *, Ifl_desc *, Ofl_desc *); 631 extern uintptr_t ld_sym_process(Is_desc *, Ifl_desc *, Ofl_desc *); 632 extern uintptr_t ld_sym_resolve(Sym_desc *, Sym *, Ifl_desc *, 633 Ofl_desc *, int, Word, Word); 634 extern uintptr_t ld_sym_spec(Ofl_desc *); 635 636 extern Ver_desc *ld_vers_base(Ofl_desc *); 637 extern uintptr_t ld_vers_check_defs(Ofl_desc *); 638 extern uintptr_t ld_vers_check_need(Ofl_desc *); 639 extern uintptr_t ld_vers_def_process(Is_desc *, Ifl_desc *, Ofl_desc *); 640 extern Ver_desc *ld_vers_desc(const char *, Word, List *); 641 extern Ver_desc *ld_vers_find(const char *, Word, List *); 642 extern uintptr_t ld_vers_need_process(Is_desc *, Ifl_desc *, Ofl_desc *); 643 extern void ld_vers_promote(Sym_desc *, Word, Ifl_desc *, 644 Ofl_desc *); 645 extern int ld_vers_sym_process(Lm_list *, Is_desc *, Ifl_desc *); 646 extern int ld_vers_verify(Ofl_desc *); 647 648 extern uintptr_t add_regsym(Sym_desc *, Ofl_desc *); 649 extern void *alist_append(Alist **, const void *, size_t, int); 650 extern Word hashbkts(Word); 651 extern Xword lcm(Xword, Xword); 652 extern Listnode * list_where(List *, Word); 653 654 #if defined(__x86) && defined(_ELF64) 655 extern uintptr_t append_amd64_unwind(Os_desc *, Ofl_desc *); 656 extern uintptr_t make_amd64_unwindhdr(Ofl_desc *); 657 extern uintptr_t populate_amd64_unwindhdr(Ofl_desc *); 658 #endif 659 660 #ifdef __cplusplus 661 } 662 #endif 663 664 #endif /* _LIBLD_DOT_H */ 665