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 2008 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_idx; /* index into dtstr descriptor */ 150 } Sfltr_desc; 151 152 /* 153 * Define Alist initialization sizes. 154 */ 155 #define AL_CNT_IFL_GROUPS 20 /* ifl_groups initial alist count */ 156 #define AL_CNT_OFL_DTSFLTRS 4 /* ofl_dtsfltrs initial alist count */ 157 #define AL_CNT_OFL_SYMFLTRS 20 /* ofl_symfltrs initial alist count */ 158 #define AL_CNT_OS_MSTRISDESCS 10 /* os_mstrisdescs */ 159 #define AL_CNT_SG_OSDESC 40 /* sg_osdescs initial alist count */ 160 #define AL_CNT_SG_SECORDER 40 /* sg_secorder initial alist count */ 161 #define AL_CNT_STRMRGREL 500 /* ld_make_strmerge() reloc alist cnt */ 162 #define AL_CNT_STRMRGSYM 20 /* ld_make_strmerge() sym alist cnt */ 163 164 /* 165 * Return codes for {tls|got}_fixups() routines 166 */ 167 typedef enum { 168 FIX_ERROR, /* fatal error - time to punt */ 169 FIX_DONE, /* relocation done - no further processing required */ 170 FIX_RELOC /* do_reloc() relocation processing required */ 171 } Fixupret; 172 173 #ifndef FILENAME_MAX 174 #define FILENAME_MAX BUFSIZ /* maximum length of a path name */ 175 #endif 176 177 /* 178 * We pad the end of the .dynstr section with a block of DYNSTR_EXTRA_PAD 179 * bytes, and we insert DYNAMIC_EXTRA_ELTS unused items into the 180 * .dynamic section (with value DT_NULL). This provides the resources needed 181 * to add and/or alter string items in the .dynamic section, such as runpath. 182 */ 183 #define DYNSTR_EXTRA_PAD 512 184 #define DYNAMIC_EXTRA_ELTS 10 185 186 /* 187 * Relocation buckets are sized based on the number of input relocations and 188 * the following constants. 189 */ 190 #define REL_HAIDESCNO 1000 /* high water mark active buckets */ 191 #define REL_LAIDESCNO 50 /* low water mark active buckets */ 192 #define REL_HOIDESCNO 500 /* high water mark output buckets */ 193 #define REL_LOIDESCNO 10 /* low water mark output buckets */ 194 195 extern char *Plibpath; 196 extern char *Llibdir; 197 extern char *Ulibdir; 198 extern Ld_heap *ld_heap; 199 extern List lib_support; 200 extern int demangle_flag; 201 extern const Msg reject[]; 202 extern int Verbose; 203 extern const int ldynsym_symtype[STT_NUM]; 204 extern const int dynsymsort_symtype[STT_NUM]; 205 206 /* 207 * Given a symbol of a type that is allowed within a .SUNW_dynsymsort or 208 * .SUNW_dyntlssort section, examine the symbol attributes to determine 209 * if this particular symbol should be included or not. 210 * 211 * entry: 212 * The symbol must have an allowed type: Either a type verified by 213 * dynsymsort_symtype[] or STT_TLS. 214 * 215 * _sdp - Pointer to symbol descriptor 216 * _sym - Pointer to symbol referenced by _sdp. 217 * 218 * _sym is derivable from _sdp: _sdp->sd_sym 219 * However, most callers assign it to a local variable for efficiency, 220 * and this macro allows such a variable to be used within. If you 221 * don't have such a variable, supply _sdp->sd_sym. 222 * 223 * The tests used require some explanation: 224 * 225 * (_sdp->sd_flags & FLG_SY_DYNSORT) 226 * Some special symbols are kept even if they don't meet the 227 * usual requirements. These symbols have the FLG_SY_DYNSORT 228 * bit set. If this bit isn't set then we look at the other 229 * attributes. 230 * 231 * ((_sdp->sd_ref != REF_DYN_NEED) || (_sdp->sd_flags & FLG_SY_MVTOCOMM)) 232 * We do not want to include symbols that are not defined within 233 * the object we are creating. REF_DYN_NEED corresponds to those 234 * UNDEF items. However, if the symbol is the target of a copy 235 * relocation, then it effectively becomes defined within the 236 * object after all. FLG_SY_MVTOCOMM indicates a copy relocation, 237 * and prevents us from culling those exceptions. 238 * 239 * (_sym->st_size != 0) 240 * Symbols with 0 length are labels injected by the compilers 241 * or the linker for purposes of code generation, and do 242 * not directly correspond to actual code. In fact, most of the 243 * symbols we mark with FLG_SY_DYNSORT need that flag set because 244 * they have size 0. This size test filters out the others. 245 * 246 * !(_sdp->sd_flags & FLG_SY_NODYNSORT) 247 * Some symbols are not kept, even though they do meet the usual 248 * requirements. These symbols have FLG_SY_NODYNSORT set. 249 * For example, if there are weak and non-weak versions of a given 250 * symbol, we only want to keep one of them. So, we set 251 * FLG_SY_NODYNSORT on the one we don't want. 252 */ 253 #define DYNSORT_TEST_ATTR(_sdp, _sym) \ 254 ((_sdp->sd_flags & FLG_SY_DYNSORT) || \ 255 (((_sdp->sd_ref != REF_DYN_NEED) || \ 256 (_sdp->sd_flags & FLG_SY_MVTOCOMM)) && \ 257 (_sym->st_size != 0) && \ 258 !(_sdp->sd_flags & FLG_SY_NODYNSORT))) 259 260 /* 261 * We use output section descriptor counters to add up the number of 262 * symbol indexes to put in the .SUNW_dynsort and .SUNW_dyntlssort sections. 263 * Non-TLS symbols are counted by ofl->ofl_dynsymsortcnt, while TLS symbols are 264 * counted by ofl->ofl_dyntlssortcnt. This computation is done inline in 265 * several places. The DYNSORT_COUNT macro allows us to generate this from 266 * a single description. 267 * 268 * entry: 269 * _sdp, _sym - As per DYNSORT_TEST_ATTR 270 * _type - Type of symbol (STT_*) 271 * _inc_or_dec_op - Either ++, or --. This specifies the operation 272 * to be applied to the counter, and determines whether we 273 * are adding, or removing, a symbol from .SUNW_dynsymsort. 274 * 275 * Note that _type is derivable from _sym: ELF_ST_TYPE(_sdp->sd_sym->st_info). 276 * Most callers already have it in a variable, so this allows us to use that 277 * variable. If you don't have such a variable, use ELF_ST_TYPE() as shown. 278 */ 279 #define DYNSORT_COUNT(_sdp, _sym, _type, _inc_or_dec_op) \ 280 { \ 281 Word *_cnt_var; \ 282 \ 283 if (dynsymsort_symtype[_type]) { /* Non-TLS counter */ \ 284 _cnt_var = &ofl->ofl_dynsymsortcnt; \ 285 } else if ((_type) == STT_TLS) { /* TLS counter */ \ 286 _cnt_var = &ofl->ofl_dyntlssortcnt; \ 287 } else { /* Don't count this symbol */ \ 288 _cnt_var = NULL; \ 289 } \ 290 if ((_cnt_var != NULL) && DYNSORT_TEST_ATTR(_sdp, _sym)) \ 291 (*_cnt_var)_inc_or_dec_op; /* Increment/Decrement */ \ 292 } 293 294 295 /* 296 * For backward compatibility provide a /dev/zero file descriptor. 297 */ 298 extern int dz_fd; 299 300 /* 301 * Local functions. 302 */ 303 extern char *add_string(char *, char *); 304 extern const char *demangle(const char *); 305 306 extern void lds_atexit(Ofl_desc *, int); 307 308 extern void libld_free(void *); 309 extern void *libld_malloc(size_t); 310 extern void *libld_realloc(void *, size_t); 311 312 extern Listnode *list_appendc(List *, const void *); 313 extern Listnode *list_insertc(List *, const void *, Listnode *); 314 extern Listnode *list_prependc(List *, const void *); 315 extern Listnode *list_where(List *, Word num); 316 317 extern Sdf_desc *sdf_add(const char *, List *); 318 extern Sdf_desc *sdf_find(const char *, List *); 319 320 #if defined(_ELF64) 321 322 #define ld_add_actrel ld64_add_actrel 323 #define ld_add_libdir ld64_add_libdir 324 #define ld_add_outrel ld64_add_outrel 325 #define ld_adj_movereloc ld64_adj_movereloc 326 #if defined(__sparc) 327 #define ld_allocate_got ld64_allocate_got 328 #endif 329 #define ld_am_I_partial ld64_am_I_partial 330 #define ld_append_isp ld64_append_isp 331 #define ld_ar_member ld64_ar_member 332 #define ld_ar_setup ld64_ar_setup 333 #define ld_assign_got ld64_assign_got 334 #define ld_assign_got_ndx ld64_assign_got_ndx 335 #define ld_assign_got_TLS ld64_assign_got_TLS 336 #define ld_assign_plt_ndx ld64_assign_plt_ndx 337 #define ld_byteswap_Xword ld64_byteswap_Xword 338 #define ld_calc_got_offset ld64_calc_got_offset 339 #define ld_calc_plt_addr ld64_calc_plt_addr 340 #define ld_disp_errmsg ld64_disp_errmsg 341 #define ld_do_activerelocs ld64_do_activerelocs 342 #define ld_ent_check ld64_ent_check 343 #define ld_exit ld64_exit 344 #define ld_fillin_gotplt ld64_fillin_gotplt 345 #define ld_find_gotndx ld64_find_gotndx 346 #define ld_find_library ld64_find_library 347 #define ld_finish_libs ld64_finish_libs 348 #define ld_get_group ld64_get_group 349 #define ld_lib_setup ld64_lib_setup 350 #define ld_init ld64_init 351 #define ld_init_rel ld64_init_rel 352 #define ld_is_regsym ld64_is_regsym 353 #define ld_lcm ld64_lcm 354 #define ld_mach_update_odynamic ld64_mach_update_odynamic 355 #define ld_mach_eflags ld64_mach_eflags 356 #define ld_mach_make_dynamic ld64_mach_make_dynamic 357 #define ld_mach_sym_typecheck ld64_mach_sym_typecheck 358 #define ld_make_bss ld64_make_bss 359 #define ld_make_data ld64_make_data 360 #define ld_make_got ld64_make_got 361 #define ld_make_sunwbss ld64_make_sunwbss 362 #define ld_make_sunwdata ld64_make_sunwdata 363 #define ld_make_sunwmove ld64_make_sunmove 364 #define ld_make_text ld64_make_text 365 #define ld_map_out ld64_map_out 366 #define ld_map_parse ld64_map_parse 367 #define ld_open_outfile ld64_open_outfile 368 #define ld_perform_outreloc ld64_perform_outreloc 369 #define ld_place_section ld64_place_section 370 #define ld_process_archive ld64_process_archive 371 #define ld_process_files ld64_process_files 372 #define ld_process_flags ld64_process_flags 373 #define ld_process_ifl ld64_process_ifl 374 #define ld_process_ordered ld64_process_ordered 375 #define ld_process_sym_reloc ld64_process_sym_reloc 376 #define ld_reloc_local ld64_reloc_local 377 #define ld_reloc_GOT_relative ld64_reloc_GOT_relative 378 #define ld_reloc_GOTOP ld64_reloc_GOTOP 379 #define ld_reloc_plt ld64_reloc_plt 380 #define ld_reloc_register ld64_reloc_register 381 #define ld_reloc_remain_entry ld64_reloc_remain_entry 382 #define ld_reloc_TLS ld64_reloc_TLS 383 #define ld_reloc_targval_get ld64_reloc_targval_get 384 #define ld_reloc_targval_set ld64_reloc_targval_set 385 #define ld_reg_check ld64_reg_check 386 #define ld_reg_enter ld64_reg_enter 387 #define ld_reg_find ld64_reg_find 388 #define ld_sec_validate ld64_sec_validate 389 #define ld_section_reld_name ld64_section_reld_name 390 #define ld_sort_ordered ld64_sort_ordered 391 #define ld_sort_seg_list ld64_sort_seg_list 392 #define ld_sunwmove_preprocess ld64_sunwmove_preprocess 393 #define ld_sup_atexit ld64_sup_atexit 394 #define ld_sup_open ld64_sup_open 395 #define ld_sup_file ld64_sup_file 396 #define ld_sup_loadso ld64_sup_loadso 397 #define ld_sup_input_done ld64_sup_input_done 398 #define ld_sup_input_section ld64_sup_input_section 399 #define ld_sup_section ld64_sup_section 400 #define ld_sup_start ld64_sup_start 401 #define ld_sym_add_u ld64_sym_add_u 402 #define ld_sym_adjust_vis ld64_sym_adjust_vis 403 #define ld_sym_avl_comp ld64_sym_avl_comp 404 #define ld_sym_copy ld64_sym_copy 405 #define ld_sym_enter ld64_sym_enter 406 #define ld_sym_find ld64_sym_find 407 #define ld_sym_nodirect ld64_sym_nodirect 408 #define ld_sym_process ld64_sym_process 409 #define ld_sym_resolve ld64_sym_resolve 410 #define ld_sym_spec ld64_sym_spec 411 #define ld_vers_base ld64_vers_base 412 #define ld_vers_check_defs ld64_vers_check_defs 413 #define ld_vers_check_need ld64_vers_check_need 414 #define ld_vers_def_process ld64_vers_def_process 415 #define ld_vers_desc ld64_vers_desc 416 #define ld_vers_find ld64_vers_find 417 #define ld_vers_need_process ld64_vers_need_process 418 #define ld_vers_promote ld64_vers_promote 419 #define ld_vers_sym_process ld64_vers_sym_process 420 #define ld_vers_verify ld64_vers_verify 421 422 #else 423 424 #define ld_add_actrel ld32_add_actrel 425 #define ld_add_libdir ld32_add_libdir 426 #define ld_add_outrel ld32_add_outrel 427 #define ld_adj_movereloc ld32_adj_movereloc 428 #if defined(__sparc) 429 #define ld_allocate_got ld32_allocate_got 430 #endif 431 #define ld_am_I_partial ld32_am_I_partial 432 #define ld_append_isp ld32_append_isp 433 #define ld_ar_member ld32_ar_member 434 #define ld_ar_setup ld32_ar_setup 435 #define ld_assign_got ld32_assign_got 436 #define ld_assign_got_ndx ld32_assign_got_ndx 437 #define ld_assign_got_TLS ld32_assign_got_TLS 438 #define ld_assign_plt_ndx ld32_assign_plt_ndx 439 #define ld_byteswap_Xword ld32_byteswap_Xword 440 #define ld_calc_got_offset ld32_calc_got_offset 441 #define ld_calc_plt_addr ld32_calc_plt_addr 442 #define ld_disp_errmsg ld32_disp_errmsg 443 #define ld_do_activerelocs ld32_do_activerelocs 444 #define ld_ent_check ld32_ent_check 445 #define ld_exit ld32_exit 446 #define ld_fillin_gotplt ld32_fillin_gotplt 447 #define ld_find_gotndx ld32_find_gotndx 448 #define ld_find_library ld32_find_library 449 #define ld_finish_libs ld32_finish_libs 450 #define ld_section_reld_name ld32_section_reld_name 451 #define ld_get_group ld32_get_group 452 #define ld_lib_setup ld32_lib_setup 453 #define ld_init ld32_init 454 #define ld_init_rel ld32_init_rel 455 #define ld_is_regsym ld32_is_regsym 456 #define ld_lcm ld32_lcm 457 #define ld_mach_update_odynamic ld32_mach_update_odynamic 458 #define ld_mach_eflags ld32_mach_eflags 459 #define ld_mach_make_dynamic ld32_mach_make_dynamic 460 #define ld_mach_sym_typecheck ld32_mach_sym_typecheck 461 #define ld_make_bss ld32_make_bss 462 #define ld_make_data ld32_make_data 463 #define ld_make_got ld32_make_got 464 #define ld_make_sunwbss ld32_make_sunwbss 465 #define ld_make_sunwdata ld32_make_sunwdata 466 #define ld_make_sunwmove ld32_make_sunmove 467 #define ld_make_text ld32_make_text 468 #define ld_map_out ld32_map_out 469 #define ld_map_parse ld32_map_parse 470 #define ld_open_outfile ld32_open_outfile 471 #define ld_perform_outreloc ld32_perform_outreloc 472 #define ld_place_section ld32_place_section 473 #define ld_process_archive ld32_process_archive 474 #define ld_process_files ld32_process_files 475 #define ld_process_flags ld32_process_flags 476 #define ld_process_ifl ld32_process_ifl 477 #define ld_process_ordered ld32_process_ordered 478 #define ld_process_sym_reloc ld32_process_sym_reloc 479 #define ld_reloc_local ld32_reloc_local 480 #define ld_reloc_GOT_relative ld32_reloc_GOT_relative 481 #define ld_reloc_GOTOP ld32_reloc_GOTOP 482 #define ld_reloc_plt ld32_reloc_plt 483 #define ld_reloc_register ld32_reloc_register 484 #define ld_reloc_remain_entry ld32_reloc_remain_entry 485 #define ld_reloc_TLS ld32_reloc_TLS 486 #define ld_reloc_targval_get ld32_reloc_targval_get 487 #define ld_reloc_targval_set ld32_reloc_targval_set 488 #define ld_reg_check ld32_reg_check 489 #define ld_reg_enter ld32_reg_enter 490 #define ld_reg_find ld32_reg_find 491 #define ld_sec_validate ld32_sec_validate 492 #define ld_sort_ordered ld32_sort_ordered 493 #define ld_sort_seg_list ld32_sort_seg_list 494 #define ld_sunwmove_preprocess ld32_sunwmove_preprocess 495 #define ld_sup_atexit ld32_sup_atexit 496 #define ld_sup_open ld32_sup_open 497 #define ld_sup_file ld32_sup_file 498 #define ld_sup_loadso ld32_sup_loadso 499 #define ld_sup_input_done ld32_sup_input_done 500 #define ld_sup_input_section ld32_sup_input_section 501 #define ld_sup_section ld32_sup_section 502 #define ld_sup_start ld32_sup_start 503 #define ld_sym_add_u ld32_sym_add_u 504 #define ld_sym_adjust_vis ld32_sym_adjust_vis 505 #define ld_sym_avl_comp ld32_sym_avl_comp 506 #define ld_sym_copy ld32_sym_copy 507 #define ld_sym_enter ld32_sym_enter 508 #define ld_sym_find ld32_sym_find 509 #define ld_sym_nodirect ld32_sym_nodirect 510 #define ld_sym_process ld32_sym_process 511 #define ld_sym_resolve ld32_sym_resolve 512 #define ld_sym_spec ld32_sym_spec 513 #define ld_vers_base ld32_vers_base 514 #define ld_vers_check_defs ld32_vers_check_defs 515 #define ld_vers_check_need ld32_vers_check_need 516 #define ld_vers_def_process ld32_vers_def_process 517 #define ld_vers_desc ld32_vers_desc 518 #define ld_vers_find ld32_vers_find 519 #define ld_vers_need_process ld32_vers_need_process 520 #define ld_vers_promote ld32_vers_promote 521 #define ld_vers_sym_process ld32_vers_sym_process 522 #define ld_vers_verify ld32_vers_verify 523 524 #endif 525 526 extern uintptr_t dbg_setup(const char *, Dbg_desc *, const char **, int); 527 528 extern uintptr_t ld_add_actrel(Word, Rel_desc *, Ofl_desc *); 529 extern uintptr_t ld_add_libdir(Ofl_desc *, const char *); 530 extern uintptr_t ld_add_outrel(Word, Rel_desc *, Ofl_desc *); 531 extern void ld_adj_movereloc(Ofl_desc *, Rel_desc *); 532 extern Sym_desc * ld_am_I_partial(Rel_desc *, Xword); 533 extern int ld_append_isp(Ofl_desc *, Os_desc *, Is_desc *, int); 534 extern void ld_ar_member(Ar_desc *, Elf_Arsym *, Ar_aux *, 535 Ar_mem *); 536 extern Ar_desc *ld_ar_setup(const char *, Elf *, Ofl_desc *); 537 #if defined(__sparc) 538 extern uintptr_t ld_allocate_got(Ofl_desc *); 539 #endif 540 extern uintptr_t ld_assign_got(Ofl_desc *, Sym_desc *); 541 extern uintptr_t ld_assign_got_ndx(List *, Gotndx *, Gotref, Ofl_desc *, 542 Rel_desc *, Sym_desc *); 543 extern uintptr_t ld_assign_got_TLS(Boolean, Rel_desc *, Ofl_desc *, 544 Sym_desc *, Gotndx *, Gotref, Word, Word, 545 Word, Word); 546 extern void ld_assign_plt_ndx(Sym_desc *, Ofl_desc *); 547 548 extern Xword ld_byteswap_Xword(Xword); 549 extern Xword ld_calc_got_offset(Rel_desc *, Ofl_desc *); 550 extern Xword ld_calc_plt_addr(Sym_desc *, Ofl_desc *); 551 552 extern void ld_disp_errmsg(const char *, Rel_desc *, Ofl_desc *); 553 extern uintptr_t ld_do_activerelocs(Ofl_desc *); 554 555 extern void ld_ent_check(Ofl_desc *); 556 extern int ld_exit(Ofl_desc *); 557 558 extern uintptr_t ld_fillin_gotplt(Ofl_desc *); 559 extern Gotndx * ld_find_gotndx(List *, Gotref, Ofl_desc *, Rel_desc *); 560 extern uintptr_t ld_find_library(const char *, Ofl_desc *); 561 extern uintptr_t ld_finish_libs(Ofl_desc *); 562 563 extern const char *ld_section_reld_name(Sym_desc *, Is_desc *); 564 565 extern Group_desc *ld_get_group(Ofl_desc *, Is_desc *); 566 567 extern uintptr_t ld_lib_setup(Ofl_desc *); 568 569 extern void ld_init(Ofl_desc *); 570 extern Word ld_init_rel(Rel_desc *, void *); 571 extern const char *ld_is_regsym(Ofl_desc *, Ifl_desc *, Sym *, 572 const char *, int, Word, const char *, Word *); 573 574 extern Xword ld_lcm(Xword, Xword); 575 576 extern void ld_mach_update_odynamic(Ofl_desc *, Dyn **); 577 extern void ld_mach_eflags(Ehdr *, Ofl_desc *); 578 extern void ld_mach_make_dynamic(Ofl_desc *, size_t *); 579 extern int ld_mach_sym_typecheck(Sym_desc *, Sym *, Ifl_desc *, 580 Ofl_desc *); 581 extern uintptr_t ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type); 582 extern Is_desc *ld_make_data(Ofl_desc *, size_t); 583 extern uintptr_t ld_make_got(Ofl_desc *); 584 extern uintptr_t ld_make_sunwbss(Ofl_desc *, size_t, Xword); 585 extern uintptr_t ld_make_sunwdata(Ofl_desc *, size_t, Xword); 586 extern uintptr_t ld_make_sunwmove(Ofl_desc *, int); 587 extern Is_desc *ld_make_text(Ofl_desc *, size_t); 588 extern void ld_map_out(Ofl_desc *); 589 extern uintptr_t ld_map_parse(const char *, Ofl_desc *); 590 591 extern uintptr_t ld_open_outfile(Ofl_desc *); 592 593 extern uintptr_t ld_perform_outreloc(Rel_desc *, Ofl_desc *); 594 extern Os_desc * ld_place_section(Ofl_desc *, Is_desc *, int, Word); 595 extern uintptr_t ld_process_archive(const char *, int, Ar_desc *, 596 Ofl_desc *); 597 extern uintptr_t ld_process_files(Ofl_desc *, int, char **); 598 extern uintptr_t ld_process_flags(Ofl_desc *, int, char **); 599 extern Ifl_desc *ld_process_ifl(const char *, const char *, int, Elf *, 600 Word, Ofl_desc *, Rej_desc *); 601 extern uintptr_t ld_process_ordered(Ifl_desc *, Ofl_desc *, Word, Word); 602 extern uintptr_t ld_process_sym_reloc(Ofl_desc *, Rel_desc *, Rel *, 603 Is_desc *, const char *); 604 605 extern uintptr_t ld_reloc_local(Rel_desc *, Ofl_desc *); 606 extern uintptr_t ld_reloc_GOT_relative(Boolean, Rel_desc *, Ofl_desc *); 607 extern uintptr_t ld_reloc_GOTOP(Boolean, Rel_desc *, Ofl_desc *); 608 extern uintptr_t ld_reloc_plt(Rel_desc *, Ofl_desc *); 609 extern uintptr_t ld_reloc_register(Rel_desc *, Is_desc *, Ofl_desc *); 610 extern void ld_reloc_remain_entry(Rel_desc *, Os_desc *, 611 Ofl_desc *); 612 extern uintptr_t ld_reloc_TLS(Boolean, Rel_desc *, Ofl_desc *); 613 extern int ld_reloc_targval_get(Ofl_desc *, Rel_desc *, 614 uchar_t *, Xword *); 615 extern int ld_reloc_targval_set(Ofl_desc *, Rel_desc *, 616 uchar_t *, Xword); 617 extern int ld_reg_check(Sym_desc *, Sym *, const char *, 618 Ifl_desc *, Ofl_desc *); 619 extern int ld_reg_enter(Sym_desc *, Ofl_desc *); 620 extern Sym_desc * ld_reg_find(Sym *, Ofl_desc *); 621 622 extern void ld_sec_validate(Ofl_desc *); 623 extern uintptr_t ld_sort_ordered(Ofl_desc *); 624 extern uintptr_t ld_sort_seg_list(Ofl_desc *); 625 extern uintptr_t ld_sunwmove_preprocess(Ofl_desc *); 626 extern void ld_sup_atexit(Ofl_desc *, int); 627 extern void ld_sup_open(Ofl_desc *, const char **, const char **, 628 int *, int, Elf **, Elf *ref, size_t, 629 const Elf_Kind); 630 extern void ld_sup_file(Ofl_desc *, const char *, const Elf_Kind, 631 int flags, Elf *); 632 extern uintptr_t ld_sup_loadso(Ofl_desc *, const char *); 633 extern void ld_sup_input_done(Ofl_desc *); 634 extern void ld_sup_section(Ofl_desc *, const char *, Shdr *, Word, 635 Elf_Data *, Elf *); 636 extern uintptr_t ld_sup_input_section(Ofl_desc*, Ifl_desc *, 637 const char *, Shdr **, Word, Elf_Scn *, Elf *); 638 extern void ld_sup_start(Ofl_desc *, const Half, const char *); 639 extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *, Msg); 640 extern void ld_sym_adjust_vis(Sym_desc *, Ofl_desc *); 641 extern int ld_sym_avl_comp(const void *, const void *); 642 extern uintptr_t ld_sym_copy(Sym_desc *); 643 extern Sym_desc *ld_sym_enter(const char *, Sym *, Word, Ifl_desc *, 644 Ofl_desc *, Word, Word, Word, Half, avl_index_t *); 645 extern Sym_desc *ld_sym_find(const char *, Word, avl_index_t *, 646 Ofl_desc *); 647 extern uintptr_t ld_sym_nodirect(Is_desc *, Ifl_desc *, Ofl_desc *); 648 extern uintptr_t ld_sym_process(Is_desc *, Ifl_desc *, Ofl_desc *); 649 extern uintptr_t ld_sym_resolve(Sym_desc *, Sym *, Ifl_desc *, 650 Ofl_desc *, int, Word, Word); 651 extern uintptr_t ld_sym_spec(Ofl_desc *); 652 653 extern Ver_desc *ld_vers_base(Ofl_desc *); 654 extern uintptr_t ld_vers_check_defs(Ofl_desc *); 655 extern uintptr_t ld_vers_check_need(Ofl_desc *); 656 extern uintptr_t ld_vers_def_process(Is_desc *, Ifl_desc *, Ofl_desc *); 657 extern Ver_desc *ld_vers_desc(const char *, Word, List *); 658 extern Ver_desc *ld_vers_find(const char *, Word, List *); 659 extern uintptr_t ld_vers_need_process(Is_desc *, Ifl_desc *, Ofl_desc *); 660 extern void ld_vers_promote(Sym_desc *, Word, Ifl_desc *, 661 Ofl_desc *); 662 extern int ld_vers_sym_process(Lm_list *, Is_desc *, Ifl_desc *); 663 extern int ld_vers_verify(Ofl_desc *); 664 665 extern uintptr_t add_regsym(Sym_desc *, Ofl_desc *); 666 extern Word hashbkts(Word); 667 extern Xword lcm(Xword, Xword); 668 extern Listnode * list_where(List *, Word); 669 670 #if defined(__x86) && defined(_ELF64) 671 extern uintptr_t append_amd64_unwind(Os_desc *, Ofl_desc *); 672 extern uintptr_t make_amd64_unwindhdr(Ofl_desc *); 673 extern uintptr_t populate_amd64_unwindhdr(Ofl_desc *); 674 #endif 675 676 #ifdef __cplusplus 677 } 678 #endif 679 680 #endif /* _LIBLD_DOT_H */ 681