1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 1988 AT&T 24 * All Rights Reserved 25 * 26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 #ifndef _LIBLD_H 31 #define _LIBLD_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 #include <stdlib.h> 36 #include <libelf.h> 37 #include <sgs.h> 38 #include <machdep.h> 39 #include <string_table.h> 40 #include <sys/avl.h> 41 #include <alist.h> 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /* 48 * Default directory search path manipulation for the link-editor. YLDIR 49 * indicates which directory in LIBPATH is replaced by the -YL option to cc 50 * and ld. YUDIR indicates which directory is replaced by -YU. 51 */ 52 #define YLDIR 1 53 #define YUDIR 2 54 55 /* 56 * Define a hash value that can never be returned from elf_hash(). 57 */ 58 #define SYM_NOHASH (~(Word)0) 59 60 /* 61 * Define MACROs to be used for input sections to flagout 62 * when matching sections. 63 */ 64 #define ALL_SHF_ORDER (SHF_ORDERED | SHF_LINK_ORDER) 65 #define ALL_SHF_IGNORE (ALL_SHF_ORDER | SHF_GROUP) 66 67 /* 68 * Define symbol reference types for use in symbol resolution. 69 */ 70 typedef enum { 71 REF_DYN_SEEN, /* a .so symbol has been seen */ 72 REF_DYN_NEED, /* a .so symbol satisfies a .o symbol */ 73 REF_REL_NEED, /* a .o symbol */ 74 REF_NUM /* the number of symbol references */ 75 } Symref; 76 77 78 /* 79 * GOT reference models 80 */ 81 typedef enum { 82 GOT_REF_GENERIC, /* generic symbol reference */ 83 GOT_REF_TLSIE, /* TLS initial exec (gnu) reference */ 84 GOT_REF_TLSLD, /* TLS local dynamic reference */ 85 GOT_REF_TLSGD /* TLS general dynamic reference */ 86 } Gotref; 87 88 typedef struct { 89 Xword gn_addend; /* addend associated with GOT entry */ 90 Sword gn_gotndx; /* GOT table index */ 91 Gotref gn_gotref; 92 } Gotndx; 93 94 /* 95 * Got debugging structure. The got index is defined as a signed value as we 96 * do so much mucking around with negative and positive gots on SPARC, and sign 97 * extension is necessary when building 64-bit objects. On intel we explicitly 98 * cast this variable to an unsigned value. 99 */ 100 typedef struct { 101 Sym_desc * gt_sym; 102 Gotndx gt_gndx; 103 } Gottable; 104 105 106 /* 107 * Output file processing structure 108 */ 109 struct ofl_desc { 110 char *ofl_sgsid; /* link-editor identification */ 111 const char *ofl_name; /* full file name */ 112 Elf *ofl_elf; /* elf_memory() elf descriptor */ 113 Elf *ofl_welf; /* ELF_C_WRITE elf descriptor */ 114 Ehdr *ofl_dehdr; /* default elf header, and new elf */ 115 Ehdr *ofl_nehdr; /* header describing this file */ 116 Phdr *ofl_phdr; /* program header descriptor */ 117 Phdr *ofl_tlsphdr; /* TLS phdr */ 118 int ofl_fd; /* file descriptor */ 119 size_t ofl_size; /* image size */ 120 List ofl_maps; /* list of input mapfiles */ 121 List ofl_segs; /* list of segments */ 122 List ofl_ents; /* list of entrance descriptors */ 123 List ofl_objs; /* relocatable object file list */ 124 Word ofl_objscnt; /* and count */ 125 List ofl_ars; /* archive library list */ 126 Word ofl_arscnt; /* and count */ 127 List ofl_sos; /* shared object list */ 128 Word ofl_soscnt; /* and count */ 129 List ofl_soneed; /* list of implicitly required .so's */ 130 List ofl_socntl; /* list of .so control definitions */ 131 List ofl_outrels; /* list of output relocations */ 132 Word ofl_outrelscnt; /* and count */ 133 List ofl_actrels; /* list of relocations to perform */ 134 Word ofl_actrelscnt; /* and count */ 135 Word ofl_entrelscnt; /* no of relocations entered */ 136 List ofl_copyrels; /* list of copy relocations */ 137 List ofl_ordered; /* list of shf_ordered sections */ 138 List ofl_syminfsyms; /* list of interesting syms */ 139 /* for syminfo processing */ 140 List ofl_ismove; /* list of .SUNW_move sections */ 141 List ofl_mvrelisdescs; /* list of relocation input section */ 142 /* targeting to expanded area */ 143 List ofl_parsym; /* list of Parsym_info */ 144 List ofl_extrarels; /* relocation sections which have */ 145 /* a NULL sh_info */ 146 avl_tree_t *ofl_groups; /* pointer to head of Groups AVL tree */ 147 List ofl_initarray; /* list of init array func names */ 148 List ofl_finiarray; /* list of fini array func names */ 149 List ofl_preiarray; /* list of preinit array func names */ 150 List ofl_rtldinfo; /* list of rtldinfo syms */ 151 List ofl_osgroups; /* list of output GROUP sections */ 152 List ofl_ostlsseg; /* pointer to sections in TLS segment */ 153 #if (defined(__i386) || defined(__amd64)) && defined(_ELF64) 154 List ofl_unwind; /* list of unwind output sections */ 155 Os_desc *ofl_unwindhdr; /* Unwind hdr */ 156 #endif 157 avl_tree_t ofl_symavl; /* pointer to head of Syms AVL tree */ 158 Sym_desc **ofl_regsyms; /* array of potential register */ 159 Word ofl_regsymsno; /* symbols and array count */ 160 Word ofl_regsymcnt; /* no. of output register symbols */ 161 Word ofl_lregsymcnt; /* no. of local register symbols */ 162 Sym_desc *ofl_dtracesym; /* ld -zdtrace= */ 163 Word ofl_flags; /* various state bits, args etc. */ 164 Word ofl_flags1; /* more flags */ 165 Xword ofl_segorigin; /* segment origin (start) */ 166 void *ofl_entry; /* entry point (-e and Sym_desc *) */ 167 char *ofl_filtees; /* shared objects we are a filter for */ 168 const char *ofl_soname; /* (-h option) output file name for */ 169 /* dynamic structure */ 170 const char *ofl_interp; /* interpreter name used by exec() */ 171 char *ofl_rpath; /* run path to store in .dynamic */ 172 char *ofl_config; /* config path to store in .dynamic */ 173 List ofl_ulibdirs; /* user supplied library search list */ 174 List ofl_dlibdirs; /* default library search list */ 175 Word ofl_vercnt; /* number of versions to generate */ 176 List ofl_verdesc; /* list of version descriptors */ 177 size_t ofl_verdefsz; /* size of version definition section */ 178 size_t ofl_verneedsz; /* size of version needed section */ 179 Word ofl_entercnt; /* no. of global symbols entered */ 180 Word ofl_globcnt; /* no. of global symbols to output */ 181 Word ofl_scopecnt; /* no. of scoped symbols to output */ 182 Word ofl_elimcnt; /* no. of eliminated symbols */ 183 Word ofl_locscnt; /* no. of local symbols to output */ 184 Word ofl_dynshdrcnt; /* no. of output section in .dynsym */ 185 Word ofl_shdrcnt; /* no. of output sections */ 186 Str_tbl *ofl_shdrsttab; /* Str_tbl for shdr strtab */ 187 Str_tbl *ofl_strtab; /* Str_tbl for symtab strtab */ 188 Str_tbl *ofl_dynstrtab; /* Str_tbl for dymsym strtab */ 189 Gotndx *ofl_tlsldgotndx; /* index to LD TLS_index structure */ 190 Xword ofl_relocsz; /* size of output relocations */ 191 Xword ofl_relocgotsz; /* size of .got relocations */ 192 Xword ofl_relocpltsz; /* size of .plt relocations */ 193 Xword ofl_relocbsssz; /* size of .bss (copy) relocations */ 194 Xword ofl_relocrelsz; /* size of .rel[a] relocations */ 195 Word ofl_relocincnt; /* no. of input relocations */ 196 Word ofl_reloccnt; /* tot number of output relocations */ 197 Word ofl_reloccntsub; /* tot numb of output relocations to */ 198 /* skip (-zignore) */ 199 Word ofl_relocrelcnt; /* tot number of relative */ 200 /* relocations */ 201 Word ofl_gotcnt; /* no. of .got entries */ 202 Word ofl_pltcnt; /* no. of .plt entries */ 203 Word ofl_pltpad; /* no. of .plt padd entries */ 204 Word ofl_hashbkts; /* no. of hash buckets required */ 205 Is_desc *ofl_isbss; /* .bss input section (globals) */ 206 Is_desc *ofl_islbss; /* .lbss input section (globals) */ 207 Is_desc *ofl_istlsbss; /* .tlsbss input section (globals) */ 208 Is_desc *ofl_issunwdata1; /* .data input section */ 209 /* partially expanded. */ 210 Is_desc *ofl_issunwbss; /* .SUNW_bss input section (globals) */ 211 Os_desc *ofl_osdynamic; /* .dynamic output section */ 212 Os_desc *ofl_osdynsym; /* .dynsym output section */ 213 Os_desc *ofl_osdynstr; /* .dynstr output section */ 214 Os_desc *ofl_osgot; /* .got output section */ 215 Os_desc *ofl_oshash; /* .hash output section */ 216 Os_desc *ofl_osinitarray; /* .initarray output section */ 217 Os_desc *ofl_osfiniarray; /* .finiarray output section */ 218 Os_desc *ofl_ospreinitarray; /* .preinitarray output section */ 219 Os_desc *ofl_osinterp; /* .interp output section */ 220 Os_desc *ofl_oscap; /* .SUNW_cap output section */ 221 Os_desc *ofl_osplt; /* .plt output section */ 222 Os_desc *ofl_osmove; /* .SUNW_move output section */ 223 Os_desc *ofl_osrelhead; /* first relocation section */ 224 Os_desc *ofl_osrel; /* .rel[a] relocation section */ 225 Os_desc *ofl_osshstrtab; /* .shstrtab output section */ 226 Os_desc *ofl_osstrtab; /* .strtab output section */ 227 Os_desc *ofl_ossymtab; /* .symtab output section */ 228 Os_desc *ofl_ossymshndx; /* .symtab_shndx output section */ 229 Os_desc *ofl_osdynshndx; /* .dynsym_shndx output section */ 230 Os_desc *ofl_osverdef; /* .version definition output section */ 231 Os_desc *ofl_osverneed; /* .version needed output section */ 232 Os_desc *ofl_osversym; /* .version symbol ndx output section */ 233 Word ofl_dtflags_1; /* DT_FLAGS_1 entries */ 234 Word ofl_dtflags; /* DT_FLAGS entries */ 235 Os_desc *ofl_ossyminfo; /* .SUNW_syminfo output section */ 236 Half ofl_sunwdata1ndx; /* section index for sunwdata1 */ 237 /* Ref. at perform_outreloc() in */ 238 /* libld/{mach}/machrel.c */ 239 Xword *ofl_checksum; /* DT_CHECKSUM value address */ 240 char *ofl_depaudit; /* dependency auditing required (-P) */ 241 char *ofl_audit; /* object auditing required (-p) */ 242 Alist *ofl_symfltrs; /* per-symbol filtees and their */ 243 Alist *ofl_dtsfltrs; /* associated .dynamic/.dynstrs */ 244 Xword ofl_hwcap_1; /* hardware capabilities */ 245 Xword ofl_sfcap_1; /* software capabilities */ 246 Lm_list *ofl_lml; /* runtime link-map list */ 247 }; 248 249 #define FLG_OF_DYNAMIC 0x00000001 /* generate dynamic output module */ 250 #define FLG_OF_STATIC 0x00000002 /* generate static output module */ 251 #define FLG_OF_EXEC 0x00000004 /* generate an executable */ 252 #define FLG_OF_RELOBJ 0x00000008 /* generate a relocatable object */ 253 #define FLG_OF_SHAROBJ 0x00000010 /* generate a shared object */ 254 #define FLG_OF_BFLAG 0x00000020 /* do no special plt building: -b */ 255 #define FLG_OF_IGNENV 0x00000040 /* ignore LD_LIBRARY_PATH: -i */ 256 #define FLG_OF_STRIP 0x00000080 /* strip output: -s */ 257 #define FLG_OF_NOWARN 0x00000100 /* disable symbol warnings: -t */ 258 #define FLG_OF_NOUNDEF 0x00000200 /* allow no undefined symbols: -zdefs */ 259 #define FLG_OF_PURETXT 0x00000400 /* allow no text relocations: -ztext */ 260 #define FLG_OF_GENMAP 0x00000800 /* generate a memory map: -m */ 261 #define FLG_OF_DYNLIBS 0x00001000 /* dynamic input allowed: -Bdynamic */ 262 #define FLG_OF_SYMBOLIC 0x00002000 /* bind global symbols: -Bsymbolic */ 263 #define FLG_OF_ADDVERS 0x00004000 /* add version stamp: -Qy */ 264 #define FLG_OF_MEMORY 0x00008000 /* produce a memory model */ 265 #define FLG_OF_SEGORDER 0x00010000 /* segment ordering is required */ 266 #define FLG_OF_SEGSORT 0x00020000 /* segment sorting is required */ 267 #define FLG_OF_TEXTREL 0x00040000 /* text relocations have been found */ 268 #define FLG_OF_MULDEFS 0x00080000 /* multiple symbols are allowed */ 269 #define FLG_OF_TLSPHDR 0x00100000 /* a TLS program header is required */ 270 #define FLG_OF_BLDGOT 0x00200000 /* build GOT table */ 271 #define FLG_OF_VERDEF 0x00400000 /* record version definitions */ 272 #define FLG_OF_VERNEED 0x00800000 /* record version dependencies */ 273 #define FLG_OF_NOVERSEC 0x01000000 /* don't record version sections */ 274 #define FLG_OF_AUTOLCL 0x02000000 /* automatically reduce unspecified */ 275 /* global symbols to locals */ 276 #define FLG_OF_PROCRED 0x04000000 /* process any symbol reductions by */ 277 /* effecting the symbol table */ 278 /* output and relocations */ 279 #define FLG_OF_SYMINFO 0x08000000 /* create a syminfo section */ 280 #define FLG_OF_AUX 0x10000000 /* ofl_filter is an auxiliary filter */ 281 #define FLG_OF_FATAL 0x20000000 /* fatal error during input */ 282 #define FLG_OF_WARN 0x40000000 /* warning during input processing. */ 283 #define FLG_OF_VERBOSE 0x80000000 /* -z verbose flag set */ 284 285 /* 286 * In the flags1 arena, establish any options that are applicable to archive 287 * extraction first, and associate a mask. These values are recorded with any 288 * archive descriptor so that they may be reset should the archive require a 289 * rescan to try and resolve undefined symbols. 290 */ 291 #define FLG_OF1_ALLEXRT 0x00000001 /* extract all members from an */ 292 /* archive file */ 293 #define FLG_OF1_WEAKEXT 0x00000002 /* allow archive extraction to */ 294 /* resolve weak references */ 295 #define MSK_OF1_ARCHIVE 0x0000000f /* archive flags mask */ 296 297 #define FLG_OF1_ZDIRECT 0x00000010 /* -z direct flag set */ 298 #define FLG_OF1_NDIRECT 0x00000020 /* no-direct bindings specified */ 299 #define FLG_OF1_OVHWCAP 0x00000040 /* override any input hardware or */ 300 #define FLG_OF1_OVSFCAP 0x00000080 /* software capabilities */ 301 #define FLG_OF1_RELDYN 0x00000100 /* process .dynamic in rel obj */ 302 #define FLG_OF1_REDLSYM 0x00000200 /* reduce local symbols */ 303 #define FLG_OF1_AUTOELM 0x00000400 /* automatically eliminate */ 304 /* unspecified global symbols */ 305 #define FLG_OF1_IGNORE 0x00000800 /* ignore unused dependencies */ 306 #define FLG_OF1_RELCNT 0x00001000 /* enable DT_RELACNT tracking */ 307 #define FLG_OF1_TEXTOFF 0x00002000 /* text relocations are ok */ 308 #define FLG_OF1_ABSEXEC 0x00004000 /* -zabsexec set */ 309 #define FLG_OF1_LAZYLD 0x00008000 /* lazy loading of objects enabled */ 310 #define FLG_OF1_GRPPRM 0x00010000 /* dependencies are to have */ 311 /* GROUPPERM enabled */ 312 #define FLG_OF1_OVRFLW 0x00020000 /* size exceeds 32-bit limitation */ 313 /* of 32-bit libld */ 314 #define FLG_OF1_NOPARTI 0x00040000 /* -znopartial set */ 315 #define FLG_OF1_BSSOREL 0x00080000 /* output relocation against bss */ 316 /* section */ 317 #define FLG_OF1_TLSOREL 0x00100000 /* output relocation against .tlsbss */ 318 /* section */ 319 #define FLG_OF1_VADDR 0x01000000 /* vaddr was explicitly set */ 320 #define FLG_OF1_EXTRACT 0x02000000 /* archive member has been extracted */ 321 #define FLG_OF1_RESCAN 0x04000000 /* any archives should be rescanned */ 322 #define FLG_OF1_IGNPRC 0x08000000 /* ignore processing required */ 323 #define FLG_OF1_NCSTTAB 0x10000000 /* -znocompstrtab set */ 324 #define FLG_OF1_DONE 0x20000000 /* link-editor processing complete */ 325 #define FLG_OF1_NONREG 0x40000000 /* non-regular file specified as */ 326 /* the output file */ 327 #define FLG_OF1_ALNODIR 0x80000000 /* establish NODIRECT for all */ 328 /* exported interfaces. */ 329 330 /* 331 * Relocation (active & output) processing structure - transparent to common 332 * code. 333 */ 334 struct rel_desc { 335 Os_desc *rel_osdesc; /* output section reloc is against */ 336 Is_desc *rel_isdesc; /* input section reloc is against */ 337 const char *rel_sname; /* symbol name (may be "unknown") */ 338 Sym_desc *rel_sym; /* sym relocation is against */ 339 Sym_desc *rel_usym; /* strong sym if this is a weak pair */ 340 Mv_desc *rel_move; /* move table information */ 341 Word rel_flags; /* misc. flags for relocations */ 342 Word rel_rtype; /* relocation type */ 343 Xword rel_roffset; /* relocation offset */ 344 Sxword rel_raddend; /* addend from input relocation */ 345 Word rel_typedata; /* ELF_R_TYPE_DATA(info) */ 346 }; 347 348 /* 349 * common flags used on the Rel_desc structure (defined in machrel.h). 350 */ 351 #define FLG_REL_GOT 0x00000001 /* relocation against GOT */ 352 #define FLG_REL_PLT 0x00000002 /* relocation against PLT */ 353 #define FLG_REL_BSS 0x00000004 /* relocation against BSS */ 354 #define FLG_REL_LOAD 0x00000008 /* section loadable */ 355 #define FLG_REL_SCNNDX 0x00000010 /* use section index for symbol ndx */ 356 #define FLG_REL_CLVAL 0x00000020 /* clear VALUE for active relocation */ 357 #define FLG_REL_ADVAL 0x00000040 /* add VALUE for output relocation, */ 358 /* only relevent to SPARC and */ 359 /* R_SPARC_RELATIVE */ 360 #define FLG_REL_GOTCL 0x00000080 /* clear the GOT entry. This is */ 361 /* relevant to RELA relocations, */ 362 /* not REL (i386) relocations */ 363 #define FLG_REL_MOVETAB 0x00000100 /* Relocation against .SUNW_move */ 364 /* adjustments required before */ 365 /* actual relocation */ 366 #define FLG_REL_NOINFO 0x00000200 /* Relocation comes from a section */ 367 /* with a null sh_info field */ 368 #define FLG_REL_REG 0x00000400 /* Relocation target is reg sym */ 369 #define FLG_REL_FPTR 0x00000800 /* relocation against func. desc. */ 370 #define FLG_REL_RFPTR1 0x00001000 /* Relative relocation against */ 371 /* 1st part of FD */ 372 #define FLG_REL_RFPTR2 0x00002000 /* Relative relocation against */ 373 /* 2nd part of FD */ 374 #define FLG_REL_DISP 0x00004000 /* *disp* relocation */ 375 #define FLG_REL_STLS 0x00008000 /* IE TLS reference to */ 376 /* static TLS GOT index */ 377 #define FLG_REL_DTLS 0x00010000 /* GD TLS reference relative to */ 378 /* dynamic TLS GOT index */ 379 #define FLG_REL_MTLS 0x00020000 /* LD TLS reference against GOT */ 380 #define FLG_REL_STTLS 0x00040000 /* LE TLS reference directly */ 381 /* to static tls index */ 382 #define FLG_REL_TLSFIX 0x00080000 /* relocation points to TLS instr. */ 383 /* which needs updating */ 384 #define FLG_REL_RELA 0x00100000 /* descripter captures a Rela */ 385 #define FLG_REL_GOTFIX 0x00200000 /* relocation points to GOTOP instr. */ 386 /* which needs updating */ 387 388 /* 389 * Structure to hold a cache of Relocations. 390 */ 391 struct rel_cache { 392 Rel_desc *rc_end; 393 Rel_desc *rc_free; 394 }; 395 396 /* 397 * Symbol value descriptor. For relocatable objects, each symbols value is 398 * its offset within its associated section. Therefore, to uniquely define 399 * each symbol within a reloctable object, record and sort the sh_offset and 400 * symbol value. This information is used to seach for displacement 401 * relocations as part of copy relocation validation. 402 */ 403 typedef struct { 404 Addr ssv_value; 405 Sym_desc *ssv_sdp; 406 } Ssv_desc; 407 408 /* 409 * Input file processing structures. 410 */ 411 struct ifl_desc { /* input file descriptor */ 412 const char *ifl_name; /* full file name */ 413 const char *ifl_soname; /* shared object name */ 414 dev_t ifl_stdev; /* device id and inode number for .so */ 415 ino_t ifl_stino; /* multiple inclusion checks */ 416 Ehdr *ifl_ehdr; /* elf header describing this file */ 417 Elf *ifl_elf; /* elf descriptor for this file */ 418 Sym_desc **ifl_oldndx; /* original symbol table indices */ 419 Sym_desc *ifl_locs; /* symbol desc version of locals */ 420 Ssv_desc *ifl_sortsyms; /* sorted list of symbols by value */ 421 Word ifl_locscnt; /* no. of local symbols to process */ 422 Word ifl_symscnt; /* total no. of symbols to process */ 423 Word ifl_sortcnt; /* no. of sorted symbols to process */ 424 Word ifl_shnum; /* number of sections in file */ 425 Word ifl_shstrndx; /* index to .shstrtab */ 426 Word ifl_vercnt; /* number of versions in file */ 427 Is_desc **ifl_isdesc; /* isdesc[scn ndx] = Is_desc ptr */ 428 Sdf_desc *ifl_sdfdesc; /* control definition */ 429 Versym *ifl_versym; /* version symbol table array */ 430 Ver_index *ifl_verndx; /* verndx[ver ndx] = Ver_index */ 431 List ifl_verdesc; /* version descriptor list */ 432 List ifl_relsect; /* relocation section list */ 433 Alist *ifl_groups; /* SHT_GROUP section list */ 434 Half ifl_neededndx; /* index to NEEDED in .dyn section */ 435 Half ifl_flags; /* Explicit/implicit reference */ 436 }; 437 438 #define FLG_IF_CMDLINE 0x00001 /* full filename specified from the */ 439 /* command line (no -l) */ 440 #define FLG_IF_NEEDED 0x00002 /* shared object should be recorded */ 441 #define FLG_IF_DIRECT 0x00004 /* establish direct bindings to this */ 442 /* object */ 443 #define FLG_IF_EXTRACT 0x00008 /* file extracted from an archive */ 444 #define FLG_IF_VERNEED 0x00010 /* version dependency information is */ 445 /* required */ 446 #define FLG_IF_DEPREQD 0x00020 /* dependency is required to satisfy */ 447 /* symbol references */ 448 #define FLG_IF_NEEDSTR 0x00040 /* dependency specified by -Nn */ 449 /* flag */ 450 #define FLG_IF_IGNORE 0x00080 /* ignore unused dependencies */ 451 #define FLG_IF_NODIRECT 0x00100 /* object contains symbols that */ 452 /* cannot be directly bound to. */ 453 #define FLG_IF_LAZYLD 0x00200 /* bindings to this object should be */ 454 /* lazy loaded */ 455 #define FLG_IF_GRPPRM 0x00400 /* this dependency should have the */ 456 /* DF_P1_GROUPPERM flag set */ 457 #define FLG_IF_DISPPEND 0x00800 /* displacement relocation done */ 458 /* in the ld time. */ 459 #define FLG_IF_DISPDONE 0x01000 /* displacement relocation done */ 460 /* at the run time */ 461 #define FLG_IF_MAPFILE 0x02000 /* file is a mapfile */ 462 #define FLG_IF_HSTRTAB 0x04000 /* file has a string section */ 463 #define FLG_IF_FILEREF 0x08000 /* file contains a section which */ 464 /* is included in the output */ 465 /* allocatable image */ 466 467 struct is_desc { /* input section descriptor */ 468 const char *is_name; /* the section name */ 469 const char *is_basename; /* original section name (without */ 470 /* .<sect>%<func> munging */ 471 Shdr *is_shdr; /* the elf section header */ 472 Ifl_desc *is_file; /* infile desc for this section */ 473 Os_desc *is_osdesc; /* new output section for this */ 474 /* input section */ 475 Elf_Data *is_indata; /* input sections raw data */ 476 Is_desc *is_symshndx; /* related SHT_SYM_SHNDX section */ 477 Word is_scnndx; /* original section index in file */ 478 Word is_txtndx; /* Index for section. Used to decide */ 479 /* where to insert section when */ 480 /* reordering sections */ 481 Word is_ident; /* preserved IDENT used for ordered */ 482 /* sections. */ 483 uint_t is_namehash; /* hash on section name */ 484 Half is_key; /* Used for SHF_ORDERED */ 485 Half is_flags; /* Various flags */ 486 }; 487 488 #define FLG_IS_ORDERED 0x0001 /* This is a SHF_ORDERED section */ 489 #define FLG_IS_KEY 0x0002 /* This is a section pointed by */ 490 /* sh_info of a SHF_ORDERED section */ 491 #define FLG_IS_DISCARD 0x0004 /* section is to be discarded */ 492 #define FLG_IS_RELUPD 0x0008 /* symbol defined here may have moved */ 493 #define FLG_IS_SECTREF 0x0010 /* section has been referenced */ 494 #define FLG_IS_GDATADEF 0x0020 /* section contains global data sym */ 495 #define FLG_IS_EXTERNAL 0x0040 /* isp from an user file */ 496 497 498 /* 499 * Map file and output file processing structures 500 */ 501 struct os_desc { /* Output section descriptor */ 502 const char *os_name; /* the section name */ 503 Elf_Scn *os_scn; /* the elf section descriptor */ 504 Shdr *os_shdr; /* the elf section header */ 505 Os_desc *os_relosdesc; /* the output relocation section */ 506 List os_relisdescs; /* reloc input section descriptors */ 507 /* for this output section */ 508 List os_isdescs; /* list of input sections in output */ 509 Sort_desc *os_sort; /* used for sorting sections */ 510 Sg_desc *os_sgdesc; /* segment os_desc is placed on */ 511 Elf_Data *os_outdata; /* output sections raw data */ 512 List os_comdats; /* list of COMDAT sections present */ 513 /* in current output section */ 514 Word os_scnsymndx; /* index in output symtab of section */ 515 /* symbol for this section */ 516 Word os_txtndx; /* Index for section. Used to decide */ 517 /* where to insert section when */ 518 /* reordering sections */ 519 Xword os_szoutrels; /* size of output relocation section */ 520 uint_t os_namehash; /* hash on section name */ 521 uchar_t os_flags; /* various flags */ 522 }; 523 524 #define FLG_OS_ORDER_KEY 0x01 /* include a sort key section */ 525 #define FLG_OS_OUTREL 0x02 /* output rel against this section */ 526 #define FLG_OS_SECTREF 0x04 /* isps are not affected by -zignore */ 527 528 /* 529 * For sorting sections. 530 */ 531 struct sort_desc { 532 Is_desc **st_order; 533 Word st_ordercnt; 534 Is_desc **st_before; 535 Word st_beforecnt; 536 Is_desc **st_after; 537 Word st_aftercnt; 538 }; 539 540 struct sg_desc { /* output segment descriptor */ 541 Phdr sg_phdr; /* segment header for output file */ 542 const char *sg_name; /* segment name */ 543 Xword sg_round; /* data rounding required (mapfile) */ 544 Xword sg_length; /* maximum segment length; if 0 */ 545 /* segment is not specified */ 546 Alist *sg_osdescs; /* list of output section descriptors */ 547 Alist *sg_secorder; /* list specifying section ordering */ 548 /* for the segment */ 549 Half sg_flags; 550 Sym_desc *sg_sizesym; /* size symbol for this segment */ 551 Xword sg_addralign; /* LCM of sh_addralign */ 552 Elf_Scn *sg_fscn; /* the SCN of the first section. */ 553 }; 554 555 556 #define FLG_SG_VADDR 0x0001 /* vaddr segment attribute set */ 557 #define FLG_SG_PADDR 0x0002 /* paddr segment attribute set */ 558 #define FLG_SG_LENGTH 0x0004 /* length segment attribute set */ 559 #define FLG_SG_ALIGN 0x0008 /* align segment attribute set */ 560 #define FLG_SG_ROUND 0x0010 /* round segment attribute set */ 561 #define FLG_SG_FLAGS 0x0020 /* flags segment attribute set */ 562 #define FLG_SG_TYPE 0x0040 /* type segment attribute set */ 563 #define FLG_SG_ORDER 0x0080 /* has ordering been turned on for */ 564 /* this segment. */ 565 /* i.e. ?[O] option in mapfile */ 566 #define FLG_SG_NOHDR 0x0100 /* don't map ELF or phdrs into */ 567 /* this segment */ 568 #define FLG_SG_EMPTY 0x0200 /* an empty segment specification */ 569 /* no input sections will be */ 570 /* associated to this section */ 571 #define FLG_SG_KEY 0x0400 /* include a key section */ 572 #define FLG_SG_DISABLED 0x0800 /* this segment is disabled */ 573 #define FLG_SG_PHREQ 0x1000 /* this segment requires a program */ 574 /* header */ 575 576 struct sec_order { 577 const char *sco_secname; /* section name to be ordered */ 578 Word sco_index; /* ordering index for section */ 579 Half sco_flags; 580 }; 581 582 #define FLG_SGO_USED 0x0001 /* was ordering used? */ 583 584 struct ent_desc { /* input section entrance criteria */ 585 List ec_files; /* files from which to accept */ 586 /* sections */ 587 const char *ec_name; /* name to match (NULL if none) */ 588 Word ec_type; /* section type */ 589 Word ec_attrmask; /* section attribute mask (AWX) */ 590 Word ec_attrbits; /* sections attribute bits */ 591 Sg_desc *ec_segment; /* output segment to enter if matched */ 592 Word ec_ndx; /* index to determine where section */ 593 /* meeting this criteria should */ 594 /* inserted. Used for reordering */ 595 /* of sections. */ 596 Half ec_flags; 597 }; 598 599 #define FLG_EC_USED 0x0001 /* entrance criteria met? */ 600 601 /* 602 * Move supplementary structures 603 * Sorted by symbol local/global and then by name. 604 */ 605 typedef struct psym_info { 606 Sym_desc *psym_symd; /* partially initialized symbol */ 607 Word psym_num; /* number of move entires */ 608 Half psym_flag; /* various flag */ 609 List psym_mvs; /* the list of move entries */ 610 } Psym_info; 611 612 #define FLG_PSYM_OVERLAP 0x01 /* Overlapping */ 613 614 /* 615 * One structure is allocated for a move entry. 616 */ 617 typedef struct mv_itm { 618 Xword mv_start; /* start position */ 619 Xword mv_length; /* The length of initialization */ 620 Half mv_flag; /* various flags */ 621 Is_desc *mv_isp; /* input desc. this entry is from */ 622 Move *mv_ientry; /* Input Move_entry */ 623 Word mv_oidx; /* Output Move_entry index */ 624 } Mv_itm; 625 626 #define FLG_MV_OUTSECT 0x01 /* Will be in move section */ 627 628 /* 629 * Define a move descripter used within relocation structures. 630 */ 631 struct mv_desc { 632 Move *mvd_move; 633 Sym_desc *mvd_sym; 634 }; 635 636 struct sym_desc { 637 List sd_GOTndxs; /* list of associated GOT entries */ 638 Sym *sd_sym; /* pointer to symbol table entry */ 639 Sym *sd_osym; /* copy of the original symbol entry */ 640 /* Used only for local partial */ 641 Psym_info *sd_psyminfo; /* If this is partial symbol, this */ 642 /* field holds the pointer to */ 643 /* parsym_info */ 644 const char *sd_name; /* symbols name */ 645 Ifl_desc *sd_file; /* file where symbol is taken */ 646 Is_desc *sd_isc; /* input section of symbol definition */ 647 Sym_aux *sd_aux; /* auxiliary global symbol info. */ 648 Word sd_symndx; /* index in output symbol table */ 649 Word sd_shndx; /* sect. index sym is associated w/ */ 650 Word sd_flags; /* state flags */ 651 Half sd_flags1; /* more symbol flags */ 652 Half sd_ref; /* reference definition of symbol */ 653 }; 654 655 /* 656 * The auxiliary symbol descriptor contains the additional information (beyond 657 * the symbol descriptor) required to process global symbols. These symbols are 658 * accessed via an internal symbol hash table where locality of reference is 659 * important for performance. 660 */ 661 struct sym_aux { 662 List sa_dfiles; /* files where symbol is defined */ 663 Sym sa_sym; /* copy of symtab entry */ 664 const char *sa_vfile; /* first unavailable definition */ 665 Ifl_desc *sa_bindto; /* symbol to bind to - for translator */ 666 const char *sa_rfile; /* file with first symbol referenced */ 667 Word sa_hash; /* the pure hash value of symbol */ 668 Word sa_PLTndx; /* index into PLT for symbol */ 669 Word sa_PLTGOTndx; /* GOT entry indx for PLT indirection */ 670 Word sa_linkndx; /* index of associated symbol */ 671 Half sa_symspec; /* special symbol ids */ 672 Half sa_overndx; /* output file versioning index */ 673 Half sa_dverndx; /* dependency versioning index */ 674 }; 675 676 677 /* 678 * Nodes used to track symbols in the global AVL symbol dictionary. 679 */ 680 struct sym_avlnode { 681 avl_node_t sav_node; /* AVL node */ 682 Word sav_hash; /* symbol hash value */ 683 const char *sav_name; /* symbol name */ 684 Sym_desc *sav_symdesc; /* SymDesc entry */ 685 }; 686 687 /* 688 * These are the ids for processing of `Special symbols'. They are used 689 * to set the sym->sd_aux->sa_symspec field. 690 */ 691 #define SDAUX_ID_ETEXT 1 /* etext && _etext symbol */ 692 #define SDAUX_ID_EDATA 2 /* edata && _edata symbol */ 693 #define SDAUX_ID_END 3 /* end, _end, && _END_ symbol */ 694 #define SDAUX_ID_DYN 4 /* DYNAMIC && _DYNAMIC symbol */ 695 #define SDAUX_ID_PLT 5 /* _PROCEDURE_LINKAGE_TABLE_ symbol */ 696 #define SDAUX_ID_GOT 6 /* _GLOBAL_OFFSET_TABLE_ symbol */ 697 #define SDAUX_ID_START 7 /* START_ && _START_ symbol */ 698 699 /* 700 * Flags for sym_desc.sd_flags 701 */ 702 #define FLG_SY_MVTOCOMM 0x00000001 /* assign symbol to common (.bss) */ 703 /* this is a result of a */ 704 /* copy reloc against sym */ 705 #define FLG_SY_GLOBREF 0x00000002 /* a global reference has been seen */ 706 #define FLG_SY_WEAKDEF 0x00000004 /* a weak definition has been used */ 707 #define FLG_SY_CLEAN 0x00000008 /* `Sym' entry points to original */ 708 /* input file (read-only). */ 709 #define FLG_SY_UPREQD 0x00000010 /* symbol value update is required, */ 710 /* either it's used as an entry */ 711 /* point or for relocation, but */ 712 /* it must be updated even if */ 713 /* the -s flag is in effect */ 714 #define FLG_SY_NOTAVAIL 0x00000020 /* symbol is not available to the */ 715 /* application either because it */ 716 /* originates from an implicitly */ 717 /* referenced shared object, or */ 718 /* because it is not part of a */ 719 /* specified version. */ 720 #define FLG_SY_REDUCED 0x00000040 /* a global is reduced to local */ 721 #define FLG_SY_VERSPROM 0x00000080 /* version definition has been */ 722 /* promoted to output file */ 723 #define FLG_SY_PROT 0x00000100 /* stv_protected visibility seen */ 724 725 #define FLG_SY_MAPREF 0x00000200 /* symbol reference generated by user */ 726 /* from mapfile */ 727 #define FLG_SY_REFRSD 0x00000400 /* symbols sd_ref has been raised */ 728 /* due to a copy-relocs */ 729 /* weak-strong pairing */ 730 731 #define FLG_SY_INVALID 0x00001000 /* unwanted/erroneous symbol */ 732 #define FLG_SY_SMGOT 0x00002000 /* small got index assigned to symbol */ 733 /* sparc only */ 734 #define FLG_SY_PARENT 0x00004000 /* symbol to be found in parent */ 735 /* only used with direct bindings */ 736 #define FLG_SY_LAZYLD 0x00008000 /* symbol to cause lazyloading of */ 737 /* parent object */ 738 #define FLG_SY_ISDISC 0x00010000 /* symbol is a member of a DISCARDED */ 739 /* section (COMDAT) */ 740 #define FLG_SY_PAREXPN 0x00020000 /* partially init. symbol to be */ 741 /* expanded */ 742 #define FLG_SY_PLTPAD 0x00040000 /* pltpadding has been allocated for */ 743 /* this symbol */ 744 #define FLG_SY_REGSYM 0x00080000 /* REGISTER symbol (sparc only) */ 745 #define FLG_SY_SOFOUND 0x00100000 /* compared against an SO definition */ 746 #define FLG_SY_EXTERN 0x00200000 /* symbol is external, allows -zdefs */ 747 /* error suppression */ 748 #define FLG_SY_MAPUSED 0x00400000 /* mapfile symbol used (occurred */ 749 /* within a relocatable object) */ 750 #define FLG_SY_COMMEXP 0x00800000 /* COMMON symbol which has been */ 751 /* allocated */ 752 #define FLG_SY_CMDREF 0x01000000 /* symbol was referenced from the */ 753 /* command line. (ld -u <>, */ 754 /* ld -zrtldinfo=<>, ...) */ 755 #define FLG_SY_SPECSEC 0x02000000 /* section index is reserved value */ 756 /* ABS, COMMON, ... */ 757 #define FLG_SY_TENTSYM 0x04000000 /* tentative symbol */ 758 #define FLG_SY_VISIBLE 0x08000000 /* symbols visibility determined */ 759 #define FLG_SY_STDFLTR 0x10000000 /* symbol is a standard filter */ 760 #define FLG_SY_AUXFLTR 0x20000000 /* symbol is an auxiliary filter */ 761 762 /* 763 * Sym_desc.sd_flags1 764 */ 765 #define FLG_SY1_GLOB 0x00000001 /* global symbol, remain global */ 766 #define FLG_SY1_PROT 0x00000002 /* global symbol, reduce to protected */ 767 #define FLG_SY1_LOCL 0x00000004 /* global symbol, reduce to local */ 768 #define FLG_SY1_DIR 0x00000008 /* global symbol, direct bindings */ 769 #define FLG_SY1_NDIR 0x00000010 /* global symbol, nondirect bindings */ 770 #define FLG_SY1_ELIM 0x00000020 /* global symbol, eliminate */ 771 #define FLG_SY1_IGNORE 0x00000040 /* symbol should be ignored */ 772 773 #define MSK_SY1_DEFINED (FLG_SY1_GLOB | FLG_SY1_PROT | FLG_SY1_LOCL) 774 /* The above mask indicates that */ 775 /* a symbol has been explicitly */ 776 /* scoped, and therefore is not */ 777 /* a candidate for auto-reduction */ 778 779 /* 780 * create a mask for (Sym.St_other & visibility) since the 781 * gABI does not yet define a ELF*_ST_OTHER macro. 782 */ 783 #define MSK_SYM_VISIBILITY 0x03 784 785 /* 786 * Structure to manage the shared object definition lists. There are two lists 787 * that use this structure: 788 * 789 * o ofl_soneed; maintain the list of implicitly required dependencies 790 * (ie. shared objects needed by other shared objects). These definitions 791 * may include RPATH's required to locate the dependencies, and any 792 * version requirements. 793 * 794 * o ofl_socntl; maintains the shared object control definitions. These are 795 * provided by the user (via a mapfile) and are used to indicate any 796 * SONAME translations and verion control requirements. 797 */ 798 struct sdf_desc { 799 const char *sdf_name; /* the shared objects file name */ 800 const char *sdf_soname; /* the shared objects SONAME */ 801 char *sdf_rpath; /* library search path DT_RPATH */ 802 const char *sdf_rfile; /* referencing file for diagnostics */ 803 Ifl_desc *sdf_file; /* the final input file descriptor */ 804 List sdf_vers; /* list of versions that are required */ 805 /* from this object */ 806 List sdf_verneed; /* list of VERNEEDS to create for */ 807 /* this object (via SPECVERS or */ 808 /* ADDVERS) */ 809 Word sdf_flags; 810 }; 811 812 #define FLG_SDF_SONAME 0x02 /* An alternative SONAME is supplied */ 813 #define FLG_SDF_SELECT 0x04 /* version control selection required */ 814 #define FLG_SDF_VERIFY 0x08 /* version definition verification */ 815 /* required */ 816 #define FLG_SDF_SPECVER 0x10 /* specify VERNEEDS */ 817 #define FLG_SDF_ADDVER 0x20 /* add VERNEED references */ 818 819 /* 820 * Structure to manage shared object version usage requirements. 821 */ 822 struct sdv_desc { 823 const char *sdv_name; /* version name */ 824 const char *sdv_ref; /* versions reference */ 825 Word sdv_flags; /* flags */ 826 }; 827 828 #define FLG_SDV_MATCHED 0x01 /* VERDEF found and matched */ 829 830 /* 831 * Structures to manage versioning information. Two versioning structures are 832 * defined: 833 * 834 * o a version descriptor maintains a linked list of versions and their 835 * associated dependencies. This is used to build the version definitions 836 * for an image being created (see map_symbol), and to determine the 837 * version dependency graph for any input files that are versioned. 838 * 839 * o a version index array contains each version of an input file that is 840 * being processed. It informs us which versions are available for 841 * binding, and is used to generate any version dependency information. 842 */ 843 struct ver_desc { 844 const char *vd_name; /* version name */ 845 Word vd_hash; /* hash value of name */ 846 Ifl_desc *vd_file; /* file that defined version */ 847 Half vd_ndx; /* coordinates with symbol index */ 848 Half vd_flags; /* version information */ 849 List vd_deps; /* version dependencies */ 850 Ver_desc *vd_ref; /* dependency's first reference */ 851 }; 852 853 struct ver_index { 854 const char *vi_name; /* dependency version name */ 855 Half vi_flags; /* communicates availability */ 856 Ver_desc *vi_desc; /* cross reference to descriptor */ 857 }; 858 859 /* 860 * Define any internal version descriptor flags ([vd|vi]_flags). Note that the 861 * first byte is reserved for user visible flags (refer VER_FLG's in link.h). 862 */ 863 #define MSK_VER_USER 0x0f /* mask for user visible flags */ 864 865 #define FLG_VER_AVAIL 0x10 /* version is available for binding */ 866 #define FLG_VER_REFER 0x20 /* version has been referenced */ 867 #define FLG_VER_SELECT 0x40 /* version has been selected by user */ 868 #define FLG_VER_CYCLIC 0x80 /* a member of cyclic dependency */ 869 870 871 /* 872 * isalist(1) descriptor - used to break an isalist string into its component 873 * options. 874 */ 875 struct isa_opt { 876 char *isa_name; /* individual isa option name */ 877 size_t isa_namesz; /* and associated size */ 878 }; 879 880 struct isa_desc { 881 char *isa_list; /* sysinfo(SI_ISALIST) list */ 882 size_t isa_listsz; /* and associated size */ 883 Isa_opt *isa_opt; /* table of individual isa options */ 884 size_t isa_optno; /* and associated number */ 885 }; 886 887 /* 888 * uname(2) descriptor - used to break a utsname structure into its component 889 * options (at least those that we're interested in). 890 */ 891 struct uts_desc { 892 char *uts_osname; /* operating system name */ 893 size_t uts_osnamesz; /* and associated size */ 894 char *uts_osrel; /* operating system release */ 895 size_t uts_osrelsz; /* and associated size */ 896 }; 897 898 899 /* 900 * SHT_GROUP descriptor - used to track group sections at the global 901 * level to resolve conflicts/determine which to keep. 902 */ 903 struct group_desc { 904 const char *gd_gsectname; /* group section name */ 905 const char *gd_symname; /* symbol name */ 906 Word *gd_data; /* data for group section */ 907 size_t gd_scnndx; /* group section index */ 908 size_t gd_cnt; /* number of entries in group data */ 909 Word gd_flags; 910 }; 911 912 #define GRP_FLG_DISCARD 0x0001 /* group is to be discarded */ 913 914 /* 915 * Indexes into the ld_support_funcs[] table. 916 */ 917 typedef enum { 918 LDS_VERSION = 0, 919 LDS_INPUT_DONE, 920 LDS_START, 921 LDS_ATEXIT, 922 LDS_FILE, 923 LDS_INP_SECTION, 924 LDS_SECTION, 925 LDS_NUM 926 } Support_ndx; 927 928 929 /* 930 * Structure to manage archive member caching. Each archive has an archive 931 * descriptor (Ar_desc) associated with it. This contains pointers to the 932 * archive symbol table (obtained by elf_getarsyms(3e)) and an auxiliary 933 * structure (Ar_uax[]) that parallels this symbol table. The member element 934 * of this auxiliary table indicates whether the archive member associated with 935 * the symbol offset has already been extracted (AREXTRACTED) or partially 936 * processed (refer process_member()). 937 */ 938 typedef struct ar_mem { 939 Elf *am_elf; /* elf descriptor for this member */ 940 char *am_name; /* members name */ 941 char *am_path; /* path (ie. lib(foo.o)) */ 942 Sym *am_syms; /* start of global symbols */ 943 char *am_strs; /* associated string table start */ 944 Xword am_symn; /* no. of global symbols */ 945 } Ar_mem; 946 947 typedef struct ar_aux { 948 Sym_desc *au_syms; /* internal symbol descriptor */ 949 Ar_mem *au_mem; /* associated member */ 950 } Ar_aux; 951 952 #define FLG_ARMEM_PROC (Ar_mem *)-1 953 954 typedef struct ar_desc { 955 const char *ad_name; /* archive file name */ 956 Elf *ad_elf; /* elf descriptor for the archive */ 957 Elf_Arsym *ad_start; /* archive symbol table start */ 958 Ar_aux *ad_aux; /* auxiliary symbol information */ 959 dev_t ad_stdev; /* device id and inode number for */ 960 ino_t ad_stino; /* multiple inclusion checks */ 961 Word ad_flags; /* archive specific cmd line flags */ 962 } Ar_desc; 963 964 /* 965 * Define any archive descriptor flags. NOTE, make sure they do not clash with 966 * any output file descriptor archive extraction flags, as these are saved in 967 * the same entry (see MSK_OF1_ARCHIVE). 968 */ 969 #define FLG_ARD_EXTRACT 0x00010000 /* archive member has been extracted */ 970 971 /* 972 * Function Declarations. 973 */ 974 #if defined(_ELF64) 975 976 #define ld_create_outfile ld64_create_outfile 977 #define ld_ent_setup ld64_ent_setup 978 #define ld_ofl_cleanup ld64_ofl_cleanup 979 #define ld_make_sections ld64_make_sections 980 #define ld_main ld64_main 981 #define ld_process_open ld64_process_open 982 #define ld_reloc_init ld64_reloc_init 983 #define ld_reloc_process ld64_reloc_process 984 #define ld_sym_add_u ld64_sym_add_u 985 #define ld_sym_validate ld64_sym_validate 986 #define ld_update_outfile ld64_update_outfile 987 988 #else 989 990 #define ld_create_outfile ld32_create_outfile 991 #define ld_ent_setup ld32_ent_setup 992 #define ld_ofl_cleanup ld32_ofl_cleanup 993 #define ld_make_sections ld32_make_sections 994 #define ld_main ld32_main 995 #define ld_process_open ld32_process_open 996 #define ld_reloc_init ld32_reloc_init 997 #define ld_reloc_process ld32_reloc_process 998 #define ld_sym_add_u ld32_sym_add_u 999 #define ld_sym_validate ld32_sym_validate 1000 #define ld_update_outfile ld32_update_outfile 1001 1002 #endif 1003 1004 extern int ld32_main(int, char **); 1005 extern int ld64_main(int, char **); 1006 1007 extern uintptr_t ld_create_outfile(Ofl_desc *); 1008 extern uintptr_t ld_ent_setup(Ofl_desc *, Xword); 1009 extern void ld_ofl_cleanup(Ofl_desc *); 1010 extern uintptr_t ld_make_sections(Ofl_desc *); 1011 extern Ifl_desc *ld_process_open(const char *, size_t, int, Ofl_desc *, 1012 Half, Rej_desc *); 1013 extern uintptr_t ld_reloc_init(Ofl_desc *); 1014 extern uintptr_t ld_reloc_process(Ofl_desc *); 1015 extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *); 1016 extern uintptr_t ld_sym_validate(Ofl_desc *); 1017 extern uintptr_t ld_update_outfile(Ofl_desc *); 1018 1019 #ifdef __cplusplus 1020 } 1021 #endif 1022 1023 #endif /* _LIBLD_H */ 1024