17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 55aefb655Srie * Common Development and Distribution License (the "License"). 65aefb655Srie * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21c174926fSrie 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * Copyright (c) 1988 AT&T 247c478bd9Sstevel@tonic-gate * All Rights Reserved 257c478bd9Sstevel@tonic-gate * 269a411307Srie * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 277c478bd9Sstevel@tonic-gate * Use is subject to license terms. 287c478bd9Sstevel@tonic-gate */ 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate #ifndef _LIBLD_H 317c478bd9Sstevel@tonic-gate #define _LIBLD_H 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #include <stdlib.h> 367c478bd9Sstevel@tonic-gate #include <libelf.h> 377c478bd9Sstevel@tonic-gate #include <sgs.h> 387c478bd9Sstevel@tonic-gate #include <machdep.h> 397c478bd9Sstevel@tonic-gate #include <string_table.h> 407c478bd9Sstevel@tonic-gate #include <sys/avl.h> 417c478bd9Sstevel@tonic-gate #include <alist.h> 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #ifdef __cplusplus 447c478bd9Sstevel@tonic-gate extern "C" { 457c478bd9Sstevel@tonic-gate #endif 467c478bd9Sstevel@tonic-gate 477c478bd9Sstevel@tonic-gate /* 487c478bd9Sstevel@tonic-gate * Default directory search path manipulation for the link-editor. YLDIR 497c478bd9Sstevel@tonic-gate * indicates which directory in LIBPATH is replaced by the -YL option to cc 507c478bd9Sstevel@tonic-gate * and ld. YUDIR indicates which directory is replaced by -YU. 517c478bd9Sstevel@tonic-gate */ 527c478bd9Sstevel@tonic-gate #define YLDIR 1 537c478bd9Sstevel@tonic-gate #define YUDIR 2 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate /* 567c478bd9Sstevel@tonic-gate * Define a hash value that can never be returned from elf_hash(). 577c478bd9Sstevel@tonic-gate */ 587c478bd9Sstevel@tonic-gate #define SYM_NOHASH (~(Word)0) 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate /* 61240e56feSab196087 * Macro that can be used to represent both ORDER flags 62240e56feSab196087 * in a section header. 637c478bd9Sstevel@tonic-gate */ 647c478bd9Sstevel@tonic-gate #define ALL_SHF_ORDER (SHF_ORDERED | SHF_LINK_ORDER) 65240e56feSab196087 66240e56feSab196087 /* 67240e56feSab196087 * The linker merges (concatenates) sections with the same name and 68240e56feSab196087 * compatible section header flags. When comparing these flags, 69240e56feSab196087 * there are some that should not be included in the decision. 70240e56feSab196087 * The ALL_SHF_IGNORE constant defines these flags. 71240e56feSab196087 * 72240e56feSab196087 * NOTE: SHF_MERGE|SHF_STRINGS: 73240e56feSab196087 * The compiler is allowed to set the SHF_MERGE|SHF_STRINGS flags in 74240e56feSab196087 * order to tell the linker that: 75240e56feSab196087 * 76240e56feSab196087 * 1) There is nothing in the section except null terminated strings. 77240e56feSab196087 * 2) If two compatible sections both have these flags set, it is 78240e56feSab196087 * OK to combine identical strings into single instances. 79240e56feSab196087 * In this case, the two sections would be modified to both 80240e56feSab196087 * reference a single string copy. 81240e56feSab196087 * 82240e56feSab196087 * This is a different meaning than the simple concatenating of sections 83240e56feSab196087 * that the linker always does. It is a hint that an additional optimization 84240e56feSab196087 * is possible, but not required. This means that sections that do not 85240e56feSab196087 * share the same SHF_MERGE|SHF_STRINGS values can be merged (concatenated), 86240e56feSab196087 * but cannot have their duplicate strings combined. Hence, the values 87240e56feSab196087 * of SHF_MERGE|SHF_STRINGS should be ignored when deciding whether two 88240e56feSab196087 * sections can be merged (concatenated). 89240e56feSab196087 * 90240e56feSab196087 * We do not currently implement the SHF_MERGE|SHF_STRINGS optimization, 91240e56feSab196087 * but it is possible to add it. If we did, the procedure would be to 92240e56feSab196087 * first combine the compatible sections that have these flag bits set, 93240e56feSab196087 * and then to concatenate any others to the result. 94240e56feSab196087 */ 95240e56feSab196087 #define ALL_SHF_IGNORE (ALL_SHF_ORDER | SHF_GROUP | SHF_MERGE | SHF_STRINGS) 967c478bd9Sstevel@tonic-gate 977c478bd9Sstevel@tonic-gate /* 987c478bd9Sstevel@tonic-gate * Define symbol reference types for use in symbol resolution. 997c478bd9Sstevel@tonic-gate */ 1007c478bd9Sstevel@tonic-gate typedef enum { 1017c478bd9Sstevel@tonic-gate REF_DYN_SEEN, /* a .so symbol has been seen */ 1027c478bd9Sstevel@tonic-gate REF_DYN_NEED, /* a .so symbol satisfies a .o symbol */ 1037c478bd9Sstevel@tonic-gate REF_REL_NEED, /* a .o symbol */ 1047c478bd9Sstevel@tonic-gate REF_NUM /* the number of symbol references */ 1057c478bd9Sstevel@tonic-gate } Symref; 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate /* 1097c478bd9Sstevel@tonic-gate * GOT reference models 1107c478bd9Sstevel@tonic-gate */ 1117c478bd9Sstevel@tonic-gate typedef enum { 1127c478bd9Sstevel@tonic-gate GOT_REF_GENERIC, /* generic symbol reference */ 1137c478bd9Sstevel@tonic-gate GOT_REF_TLSIE, /* TLS initial exec (gnu) reference */ 1147c478bd9Sstevel@tonic-gate GOT_REF_TLSLD, /* TLS local dynamic reference */ 1157c478bd9Sstevel@tonic-gate GOT_REF_TLSGD /* TLS general dynamic reference */ 1167c478bd9Sstevel@tonic-gate } Gotref; 1177c478bd9Sstevel@tonic-gate 1187c478bd9Sstevel@tonic-gate typedef struct { 1197c478bd9Sstevel@tonic-gate Xword gn_addend; /* addend associated with GOT entry */ 1207c478bd9Sstevel@tonic-gate Sword gn_gotndx; /* GOT table index */ 1217c478bd9Sstevel@tonic-gate Gotref gn_gotref; 1227c478bd9Sstevel@tonic-gate } Gotndx; 1237c478bd9Sstevel@tonic-gate 1247c478bd9Sstevel@tonic-gate /* 1257c478bd9Sstevel@tonic-gate * Got debugging structure. The got index is defined as a signed value as we 1267c478bd9Sstevel@tonic-gate * do so much mucking around with negative and positive gots on SPARC, and sign 1277c478bd9Sstevel@tonic-gate * extension is necessary when building 64-bit objects. On intel we explicitly 1287c478bd9Sstevel@tonic-gate * cast this variable to an unsigned value. 1297c478bd9Sstevel@tonic-gate */ 1307c478bd9Sstevel@tonic-gate typedef struct { 1317c478bd9Sstevel@tonic-gate Sym_desc * gt_sym; 1327c478bd9Sstevel@tonic-gate Gotndx gt_gndx; 1337c478bd9Sstevel@tonic-gate } Gottable; 1347c478bd9Sstevel@tonic-gate 1357c478bd9Sstevel@tonic-gate /* 1367c478bd9Sstevel@tonic-gate * Output file processing structure 1377c478bd9Sstevel@tonic-gate */ 1387c478bd9Sstevel@tonic-gate struct ofl_desc { 1397c478bd9Sstevel@tonic-gate char *ofl_sgsid; /* link-editor identification */ 1407c478bd9Sstevel@tonic-gate const char *ofl_name; /* full file name */ 1417c478bd9Sstevel@tonic-gate Elf *ofl_elf; /* elf_memory() elf descriptor */ 1427c478bd9Sstevel@tonic-gate Elf *ofl_welf; /* ELF_C_WRITE elf descriptor */ 1435aefb655Srie Ehdr *ofl_dehdr; /* default elf header, and new elf */ 1445aefb655Srie Ehdr *ofl_nehdr; /* header describing this file */ 1457c478bd9Sstevel@tonic-gate Phdr *ofl_phdr; /* program header descriptor */ 1467c478bd9Sstevel@tonic-gate Phdr *ofl_tlsphdr; /* TLS phdr */ 1477c478bd9Sstevel@tonic-gate int ofl_fd; /* file descriptor */ 1487c478bd9Sstevel@tonic-gate size_t ofl_size; /* image size */ 1497c478bd9Sstevel@tonic-gate List ofl_maps; /* list of input mapfiles */ 1507c478bd9Sstevel@tonic-gate List ofl_segs; /* list of segments */ 1517c478bd9Sstevel@tonic-gate List ofl_ents; /* list of entrance descriptors */ 1527c478bd9Sstevel@tonic-gate List ofl_objs; /* relocatable object file list */ 1537c478bd9Sstevel@tonic-gate Word ofl_objscnt; /* and count */ 1547c478bd9Sstevel@tonic-gate List ofl_ars; /* archive library list */ 1557c478bd9Sstevel@tonic-gate Word ofl_arscnt; /* and count */ 1567c478bd9Sstevel@tonic-gate List ofl_sos; /* shared object list */ 1577c478bd9Sstevel@tonic-gate Word ofl_soscnt; /* and count */ 1587c478bd9Sstevel@tonic-gate List ofl_soneed; /* list of implicitly required .so's */ 1597c478bd9Sstevel@tonic-gate List ofl_socntl; /* list of .so control definitions */ 1607c478bd9Sstevel@tonic-gate List ofl_outrels; /* list of output relocations */ 1617c478bd9Sstevel@tonic-gate Word ofl_outrelscnt; /* and count */ 1627c478bd9Sstevel@tonic-gate List ofl_actrels; /* list of relocations to perform */ 1637c478bd9Sstevel@tonic-gate Word ofl_actrelscnt; /* and count */ 164c174926fSrie Word ofl_entrelscnt; /* no of relocations entered */ 1657c478bd9Sstevel@tonic-gate List ofl_copyrels; /* list of copy relocations */ 1667c478bd9Sstevel@tonic-gate List ofl_ordered; /* list of shf_ordered sections */ 1677c478bd9Sstevel@tonic-gate List ofl_syminfsyms; /* list of interesting syms */ 1687c478bd9Sstevel@tonic-gate /* for syminfo processing */ 1697c478bd9Sstevel@tonic-gate List ofl_ismove; /* list of .SUNW_move sections */ 1707c478bd9Sstevel@tonic-gate List ofl_mvrelisdescs; /* list of relocation input section */ 1717c478bd9Sstevel@tonic-gate /* targeting to expanded area */ 1727c478bd9Sstevel@tonic-gate List ofl_parsym; /* list of Parsym_info */ 1737c478bd9Sstevel@tonic-gate List ofl_extrarels; /* relocation sections which have */ 1747c478bd9Sstevel@tonic-gate /* a NULL sh_info */ 175cc7efc4fSrie avl_tree_t *ofl_groups; /* pointer to head of Groups AVL tree */ 1767c478bd9Sstevel@tonic-gate List ofl_initarray; /* list of init array func names */ 1777c478bd9Sstevel@tonic-gate List ofl_finiarray; /* list of fini array func names */ 1787c478bd9Sstevel@tonic-gate List ofl_preiarray; /* list of preinit array func names */ 1797c478bd9Sstevel@tonic-gate List ofl_rtldinfo; /* list of rtldinfo syms */ 1807c478bd9Sstevel@tonic-gate List ofl_osgroups; /* list of output GROUP sections */ 1817c478bd9Sstevel@tonic-gate List ofl_ostlsseg; /* pointer to sections in TLS segment */ 18202ca3e02Srie #if defined(__x86) && defined(_ELF64) 1837c478bd9Sstevel@tonic-gate List ofl_unwind; /* list of unwind output sections */ 1847c478bd9Sstevel@tonic-gate Os_desc *ofl_unwindhdr; /* Unwind hdr */ 1857c478bd9Sstevel@tonic-gate #endif 1867c478bd9Sstevel@tonic-gate avl_tree_t ofl_symavl; /* pointer to head of Syms AVL tree */ 1877c478bd9Sstevel@tonic-gate Sym_desc **ofl_regsyms; /* array of potential register */ 1887c478bd9Sstevel@tonic-gate Word ofl_regsymsno; /* symbols and array count */ 1897c478bd9Sstevel@tonic-gate Word ofl_regsymcnt; /* no. of output register symbols */ 1907c478bd9Sstevel@tonic-gate Word ofl_lregsymcnt; /* no. of local register symbols */ 1917c478bd9Sstevel@tonic-gate Sym_desc *ofl_dtracesym; /* ld -zdtrace= */ 1929a411307Srie Lword ofl_flags; /* various state bits, args etc. */ 1939a411307Srie Lword ofl_flags1; /* more flags */ 1947c478bd9Sstevel@tonic-gate Xword ofl_segorigin; /* segment origin (start) */ 1957c478bd9Sstevel@tonic-gate void *ofl_entry; /* entry point (-e and Sym_desc *) */ 1967c478bd9Sstevel@tonic-gate char *ofl_filtees; /* shared objects we are a filter for */ 1977c478bd9Sstevel@tonic-gate const char *ofl_soname; /* (-h option) output file name for */ 1987c478bd9Sstevel@tonic-gate /* dynamic structure */ 1997c478bd9Sstevel@tonic-gate const char *ofl_interp; /* interpreter name used by exec() */ 2007c478bd9Sstevel@tonic-gate char *ofl_rpath; /* run path to store in .dynamic */ 2017c478bd9Sstevel@tonic-gate char *ofl_config; /* config path to store in .dynamic */ 2027c478bd9Sstevel@tonic-gate List ofl_ulibdirs; /* user supplied library search list */ 2037c478bd9Sstevel@tonic-gate List ofl_dlibdirs; /* default library search list */ 2047c478bd9Sstevel@tonic-gate Word ofl_vercnt; /* number of versions to generate */ 2057c478bd9Sstevel@tonic-gate List ofl_verdesc; /* list of version descriptors */ 2067c478bd9Sstevel@tonic-gate size_t ofl_verdefsz; /* size of version definition section */ 2077c478bd9Sstevel@tonic-gate size_t ofl_verneedsz; /* size of version needed section */ 2087c478bd9Sstevel@tonic-gate Word ofl_entercnt; /* no. of global symbols entered */ 2097c478bd9Sstevel@tonic-gate Word ofl_globcnt; /* no. of global symbols to output */ 2107c478bd9Sstevel@tonic-gate Word ofl_scopecnt; /* no. of scoped symbols to output */ 2119039eeafSab196087 Word ofl_dynscopecnt; /* no. scoped syms in .SUNW_ldynsym */ 2127c478bd9Sstevel@tonic-gate Word ofl_elimcnt; /* no. of eliminated symbols */ 2139039eeafSab196087 Word ofl_locscnt; /* no. of local symbols in .symtab */ 2149039eeafSab196087 Word ofl_dynlocscnt; /* no. local symbols in .SUNW_ldynsym */ 215d579eb63Sab196087 Word ofl_dynsymsortcnt; /* no. ndx in .SUNW_dynsymsort */ 216d579eb63Sab196087 Word ofl_dyntlssortcnt; /* no. ndx in .SUNW_dyntlssort */ 2177c478bd9Sstevel@tonic-gate Word ofl_dynshdrcnt; /* no. of output section in .dynsym */ 2187c478bd9Sstevel@tonic-gate Word ofl_shdrcnt; /* no. of output sections */ 2197c478bd9Sstevel@tonic-gate Str_tbl *ofl_shdrsttab; /* Str_tbl for shdr strtab */ 2207c478bd9Sstevel@tonic-gate Str_tbl *ofl_strtab; /* Str_tbl for symtab strtab */ 2217c478bd9Sstevel@tonic-gate Str_tbl *ofl_dynstrtab; /* Str_tbl for dymsym strtab */ 2227c478bd9Sstevel@tonic-gate Gotndx *ofl_tlsldgotndx; /* index to LD TLS_index structure */ 2237c478bd9Sstevel@tonic-gate Xword ofl_relocsz; /* size of output relocations */ 2247c478bd9Sstevel@tonic-gate Xword ofl_relocgotsz; /* size of .got relocations */ 2257c478bd9Sstevel@tonic-gate Xword ofl_relocpltsz; /* size of .plt relocations */ 2267c478bd9Sstevel@tonic-gate Xword ofl_relocbsssz; /* size of .bss (copy) relocations */ 2277c478bd9Sstevel@tonic-gate Xword ofl_relocrelsz; /* size of .rel[a] relocations */ 2287c478bd9Sstevel@tonic-gate Word ofl_relocincnt; /* no. of input relocations */ 2297c478bd9Sstevel@tonic-gate Word ofl_reloccnt; /* tot number of output relocations */ 2307c478bd9Sstevel@tonic-gate Word ofl_reloccntsub; /* tot numb of output relocations to */ 2317c478bd9Sstevel@tonic-gate /* skip (-zignore) */ 2327c478bd9Sstevel@tonic-gate Word ofl_relocrelcnt; /* tot number of relative */ 2337c478bd9Sstevel@tonic-gate /* relocations */ 2347c478bd9Sstevel@tonic-gate Word ofl_gotcnt; /* no. of .got entries */ 2357c478bd9Sstevel@tonic-gate Word ofl_pltcnt; /* no. of .plt entries */ 2367c478bd9Sstevel@tonic-gate Word ofl_pltpad; /* no. of .plt padd entries */ 2377c478bd9Sstevel@tonic-gate Word ofl_hashbkts; /* no. of hash buckets required */ 2387c478bd9Sstevel@tonic-gate Is_desc *ofl_isbss; /* .bss input section (globals) */ 23954d82594Sseizo Is_desc *ofl_islbss; /* .lbss input section (globals) */ 2407c478bd9Sstevel@tonic-gate Is_desc *ofl_istlsbss; /* .tlsbss input section (globals) */ 2417c478bd9Sstevel@tonic-gate Is_desc *ofl_issunwdata1; /* .data input section */ 2427c478bd9Sstevel@tonic-gate /* partially expanded. */ 2437c478bd9Sstevel@tonic-gate Is_desc *ofl_issunwbss; /* .SUNW_bss input section (globals) */ 2447c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynamic; /* .dynamic output section */ 2457c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynsym; /* .dynsym output section */ 2469039eeafSab196087 Os_desc *ofl_osldynsym; /* .SUNW_ldynsym output section */ 2477c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynstr; /* .dynstr output section */ 248d579eb63Sab196087 Os_desc *ofl_osdynsymsort; /* .SUNW_dynsymsort output section */ 249d579eb63Sab196087 Os_desc *ofl_osdyntlssort; /* .SUNW_dyntlssort output section */ 2507c478bd9Sstevel@tonic-gate Os_desc *ofl_osgot; /* .got output section */ 2517c478bd9Sstevel@tonic-gate Os_desc *ofl_oshash; /* .hash output section */ 2527c478bd9Sstevel@tonic-gate Os_desc *ofl_osinitarray; /* .initarray output section */ 2537c478bd9Sstevel@tonic-gate Os_desc *ofl_osfiniarray; /* .finiarray output section */ 2547c478bd9Sstevel@tonic-gate Os_desc *ofl_ospreinitarray; /* .preinitarray output section */ 2557c478bd9Sstevel@tonic-gate Os_desc *ofl_osinterp; /* .interp output section */ 2567c478bd9Sstevel@tonic-gate Os_desc *ofl_oscap; /* .SUNW_cap output section */ 2577c478bd9Sstevel@tonic-gate Os_desc *ofl_osplt; /* .plt output section */ 2587c478bd9Sstevel@tonic-gate Os_desc *ofl_osmove; /* .SUNW_move output section */ 2597c478bd9Sstevel@tonic-gate Os_desc *ofl_osrelhead; /* first relocation section */ 2607c478bd9Sstevel@tonic-gate Os_desc *ofl_osrel; /* .rel[a] relocation section */ 2617c478bd9Sstevel@tonic-gate Os_desc *ofl_osshstrtab; /* .shstrtab output section */ 2627c478bd9Sstevel@tonic-gate Os_desc *ofl_osstrtab; /* .strtab output section */ 2637c478bd9Sstevel@tonic-gate Os_desc *ofl_ossymtab; /* .symtab output section */ 2647c478bd9Sstevel@tonic-gate Os_desc *ofl_ossymshndx; /* .symtab_shndx output section */ 2657c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynshndx; /* .dynsym_shndx output section */ 2669039eeafSab196087 Os_desc *ofl_osldynshndx; /* .SUNW_ldynsym_shndx output sec */ 2677c478bd9Sstevel@tonic-gate Os_desc *ofl_osverdef; /* .version definition output section */ 2687c478bd9Sstevel@tonic-gate Os_desc *ofl_osverneed; /* .version needed output section */ 2697c478bd9Sstevel@tonic-gate Os_desc *ofl_osversym; /* .version symbol ndx output section */ 2707c478bd9Sstevel@tonic-gate Word ofl_dtflags_1; /* DT_FLAGS_1 entries */ 2717c478bd9Sstevel@tonic-gate Word ofl_dtflags; /* DT_FLAGS entries */ 2727c478bd9Sstevel@tonic-gate Os_desc *ofl_ossyminfo; /* .SUNW_syminfo output section */ 2737c478bd9Sstevel@tonic-gate Half ofl_sunwdata1ndx; /* section index for sunwdata1 */ 2747c478bd9Sstevel@tonic-gate /* Ref. at perform_outreloc() in */ 2757c478bd9Sstevel@tonic-gate /* libld/{mach}/machrel.c */ 2767c478bd9Sstevel@tonic-gate Xword *ofl_checksum; /* DT_CHECKSUM value address */ 2777c478bd9Sstevel@tonic-gate char *ofl_depaudit; /* dependency auditing required (-P) */ 2787c478bd9Sstevel@tonic-gate char *ofl_audit; /* object auditing required (-p) */ 2797c478bd9Sstevel@tonic-gate Alist *ofl_symfltrs; /* per-symbol filtees and their */ 2807c478bd9Sstevel@tonic-gate Alist *ofl_dtsfltrs; /* associated .dynamic/.dynstrs */ 2817c478bd9Sstevel@tonic-gate Xword ofl_hwcap_1; /* hardware capabilities */ 2827c478bd9Sstevel@tonic-gate Xword ofl_sfcap_1; /* software capabilities */ 2835aefb655Srie Lm_list *ofl_lml; /* runtime link-map list */ 284d326b23bSrie Gottable *ofl_gottable; /* debugging got information */ 2857c478bd9Sstevel@tonic-gate }; 2867c478bd9Sstevel@tonic-gate 2877c478bd9Sstevel@tonic-gate #define FLG_OF_DYNAMIC 0x00000001 /* generate dynamic output module */ 2887c478bd9Sstevel@tonic-gate #define FLG_OF_STATIC 0x00000002 /* generate static output module */ 2897c478bd9Sstevel@tonic-gate #define FLG_OF_EXEC 0x00000004 /* generate an executable */ 2907c478bd9Sstevel@tonic-gate #define FLG_OF_RELOBJ 0x00000008 /* generate a relocatable object */ 2917c478bd9Sstevel@tonic-gate #define FLG_OF_SHAROBJ 0x00000010 /* generate a shared object */ 2927c478bd9Sstevel@tonic-gate #define FLG_OF_BFLAG 0x00000020 /* do no special plt building: -b */ 2937c478bd9Sstevel@tonic-gate #define FLG_OF_IGNENV 0x00000040 /* ignore LD_LIBRARY_PATH: -i */ 2947c478bd9Sstevel@tonic-gate #define FLG_OF_STRIP 0x00000080 /* strip output: -s */ 2957c478bd9Sstevel@tonic-gate #define FLG_OF_NOWARN 0x00000100 /* disable symbol warnings: -t */ 2967c478bd9Sstevel@tonic-gate #define FLG_OF_NOUNDEF 0x00000200 /* allow no undefined symbols: -zdefs */ 2977c478bd9Sstevel@tonic-gate #define FLG_OF_PURETXT 0x00000400 /* allow no text relocations: -ztext */ 2987c478bd9Sstevel@tonic-gate #define FLG_OF_GENMAP 0x00000800 /* generate a memory map: -m */ 2997c478bd9Sstevel@tonic-gate #define FLG_OF_DYNLIBS 0x00001000 /* dynamic input allowed: -Bdynamic */ 3007c478bd9Sstevel@tonic-gate #define FLG_OF_SYMBOLIC 0x00002000 /* bind global symbols: -Bsymbolic */ 3017c478bd9Sstevel@tonic-gate #define FLG_OF_ADDVERS 0x00004000 /* add version stamp: -Qy */ 3029039eeafSab196087 #define FLG_OF_NOLDYNSYM 0x00008000 /* -znoldynsym set */ 3037c478bd9Sstevel@tonic-gate #define FLG_OF_SEGORDER 0x00010000 /* segment ordering is required */ 3047c478bd9Sstevel@tonic-gate #define FLG_OF_SEGSORT 0x00020000 /* segment sorting is required */ 3057c478bd9Sstevel@tonic-gate #define FLG_OF_TEXTREL 0x00040000 /* text relocations have been found */ 3067c478bd9Sstevel@tonic-gate #define FLG_OF_MULDEFS 0x00080000 /* multiple symbols are allowed */ 307dd94ecefSrie #define FLG_OF_TLSPHDR 0x00100000 /* a TLS program header is required */ 3087c478bd9Sstevel@tonic-gate #define FLG_OF_BLDGOT 0x00200000 /* build GOT table */ 3097c478bd9Sstevel@tonic-gate #define FLG_OF_VERDEF 0x00400000 /* record version definitions */ 3107c478bd9Sstevel@tonic-gate #define FLG_OF_VERNEED 0x00800000 /* record version dependencies */ 3117c478bd9Sstevel@tonic-gate #define FLG_OF_NOVERSEC 0x01000000 /* don't record version sections */ 3127c478bd9Sstevel@tonic-gate #define FLG_OF_AUTOLCL 0x02000000 /* automatically reduce unspecified */ 3137c478bd9Sstevel@tonic-gate /* global symbols to locals */ 3147c478bd9Sstevel@tonic-gate #define FLG_OF_PROCRED 0x04000000 /* process any symbol reductions by */ 3157c478bd9Sstevel@tonic-gate /* effecting the symbol table */ 3167c478bd9Sstevel@tonic-gate /* output and relocations */ 3177c478bd9Sstevel@tonic-gate #define FLG_OF_SYMINFO 0x08000000 /* create a syminfo section */ 3187c478bd9Sstevel@tonic-gate #define FLG_OF_AUX 0x10000000 /* ofl_filter is an auxiliary filter */ 3197c478bd9Sstevel@tonic-gate #define FLG_OF_FATAL 0x20000000 /* fatal error during input */ 3207c478bd9Sstevel@tonic-gate #define FLG_OF_WARN 0x40000000 /* warning during input processing. */ 3217c478bd9Sstevel@tonic-gate #define FLG_OF_VERBOSE 0x80000000 /* -z verbose flag set */ 3227c478bd9Sstevel@tonic-gate 3239a411307Srie #define FLG_OF_MAPSYMB 0x000100000000 /* symbolic scope definition seen */ 3249a411307Srie #define FLG_OF_MAPGLOB 0x000200000000 /* global scope definition seen */ 3259a411307Srie 3267c478bd9Sstevel@tonic-gate /* 3277c478bd9Sstevel@tonic-gate * In the flags1 arena, establish any options that are applicable to archive 3287c478bd9Sstevel@tonic-gate * extraction first, and associate a mask. These values are recorded with any 3297c478bd9Sstevel@tonic-gate * archive descriptor so that they may be reset should the archive require a 3307c478bd9Sstevel@tonic-gate * rescan to try and resolve undefined symbols. 3317c478bd9Sstevel@tonic-gate */ 3327c478bd9Sstevel@tonic-gate #define FLG_OF1_ALLEXRT 0x00000001 /* extract all members from an */ 3337c478bd9Sstevel@tonic-gate /* archive file */ 3347c478bd9Sstevel@tonic-gate #define FLG_OF1_WEAKEXT 0x00000002 /* allow archive extraction to */ 3357c478bd9Sstevel@tonic-gate /* resolve weak references */ 33670d3e49eSrie #define MSK_OF1_ARCHIVE 0x00000003 /* archive flags mask */ 3377c478bd9Sstevel@tonic-gate 33870d3e49eSrie #define FLG_OF1_NOINTRP 0x00000008 /* -z nointerp flag set */ 3397c478bd9Sstevel@tonic-gate #define FLG_OF1_ZDIRECT 0x00000010 /* -z direct flag set */ 3407c478bd9Sstevel@tonic-gate #define FLG_OF1_NDIRECT 0x00000020 /* no-direct bindings specified */ 3417c478bd9Sstevel@tonic-gate #define FLG_OF1_OVHWCAP 0x00000040 /* override any input hardware or */ 3427c478bd9Sstevel@tonic-gate #define FLG_OF1_OVSFCAP 0x00000080 /* software capabilities */ 3437c478bd9Sstevel@tonic-gate #define FLG_OF1_RELDYN 0x00000100 /* process .dynamic in rel obj */ 3447c478bd9Sstevel@tonic-gate #define FLG_OF1_REDLSYM 0x00000200 /* reduce local symbols */ 3457c478bd9Sstevel@tonic-gate #define FLG_OF1_AUTOELM 0x00000400 /* automatically eliminate */ 3467c478bd9Sstevel@tonic-gate /* unspecified global symbols */ 3477c478bd9Sstevel@tonic-gate #define FLG_OF1_IGNORE 0x00000800 /* ignore unused dependencies */ 3487c478bd9Sstevel@tonic-gate #define FLG_OF1_RELCNT 0x00001000 /* enable DT_RELACNT tracking */ 3497c478bd9Sstevel@tonic-gate #define FLG_OF1_TEXTOFF 0x00002000 /* text relocations are ok */ 3507c478bd9Sstevel@tonic-gate #define FLG_OF1_ABSEXEC 0x00004000 /* -zabsexec set */ 3517c478bd9Sstevel@tonic-gate #define FLG_OF1_LAZYLD 0x00008000 /* lazy loading of objects enabled */ 3527c478bd9Sstevel@tonic-gate #define FLG_OF1_GRPPRM 0x00010000 /* dependencies are to have */ 3537c478bd9Sstevel@tonic-gate /* GROUPPERM enabled */ 3547c478bd9Sstevel@tonic-gate #define FLG_OF1_OVRFLW 0x00020000 /* size exceeds 32-bit limitation */ 3557c478bd9Sstevel@tonic-gate /* of 32-bit libld */ 3567c478bd9Sstevel@tonic-gate #define FLG_OF1_NOPARTI 0x00040000 /* -znopartial set */ 3577c478bd9Sstevel@tonic-gate #define FLG_OF1_BSSOREL 0x00080000 /* output relocation against bss */ 3587c478bd9Sstevel@tonic-gate /* section */ 3597c478bd9Sstevel@tonic-gate #define FLG_OF1_TLSOREL 0x00100000 /* output relocation against .tlsbss */ 3607c478bd9Sstevel@tonic-gate /* section */ 3619039eeafSab196087 #define FLG_OF1_MEMORY 0x00200000 /* produce a memory model */ 362d2ef9fe9Sab196087 #define FLG_OF1_RLXREL 0x00400000 /* -z relaxreloc flag set */ 363*f3324781Sab196087 #define FLG_OF1_ENCDIFF 0x00800000 /* Host running linker has different */ 364*f3324781Sab196087 /* byte order than output object */ 3657c478bd9Sstevel@tonic-gate #define FLG_OF1_VADDR 0x01000000 /* vaddr was explicitly set */ 3667c478bd9Sstevel@tonic-gate #define FLG_OF1_EXTRACT 0x02000000 /* archive member has been extracted */ 3677c478bd9Sstevel@tonic-gate #define FLG_OF1_RESCAN 0x04000000 /* any archives should be rescanned */ 3687c478bd9Sstevel@tonic-gate #define FLG_OF1_IGNPRC 0x08000000 /* ignore processing required */ 3697c478bd9Sstevel@tonic-gate #define FLG_OF1_NCSTTAB 0x10000000 /* -znocompstrtab set */ 3707c478bd9Sstevel@tonic-gate #define FLG_OF1_DONE 0x20000000 /* link-editor processing complete */ 3717c478bd9Sstevel@tonic-gate #define FLG_OF1_NONREG 0x40000000 /* non-regular file specified as */ 3727c478bd9Sstevel@tonic-gate /* the output file */ 3737c478bd9Sstevel@tonic-gate #define FLG_OF1_ALNODIR 0x80000000 /* establish NODIRECT for all */ 3747c478bd9Sstevel@tonic-gate /* exported interfaces. */ 3757c478bd9Sstevel@tonic-gate 3767c478bd9Sstevel@tonic-gate /* 3779039eeafSab196087 * Test to see if the output file would allow the presence of 3789039eeafSab196087 * a .dynsym section. 3799039eeafSab196087 */ 380*f3324781Sab196087 #define OFL_ALLOW_DYNSYM(_ofl) (((_ofl)->ofl_flags & \ 3819039eeafSab196087 (FLG_OF_DYNAMIC | FLG_OF_RELOBJ)) == FLG_OF_DYNAMIC) 3829039eeafSab196087 3839039eeafSab196087 /* 3849039eeafSab196087 * Test to see if the output file would allow the presence of 3859039eeafSab196087 * a .SUNW_ldynsym section. The requirements are that a .dynsym 3869039eeafSab196087 * is allowed, and -znoldynsym has not been specified. Note that 3879039eeafSab196087 * even if the answer is True (1), we will only generate one if there 3889039eeafSab196087 * are local symbols that require it. 3899039eeafSab196087 */ 390*f3324781Sab196087 #define OFL_ALLOW_LDYNSYM(_ofl) (((_ofl)->ofl_flags & \ 3919039eeafSab196087 (FLG_OF_DYNAMIC | FLG_OF_RELOBJ | FLG_OF_NOLDYNSYM)) == FLG_OF_DYNAMIC) 3929039eeafSab196087 3939039eeafSab196087 /* 394*f3324781Sab196087 * Test to see if relocation processing should be done. This is normally 395*f3324781Sab196087 * true, but can be disabled via the '-z noreloc' option. Note that 396*f3324781Sab196087 * relocatable objects are still relocated even if '-z noreloc' is present. 397*f3324781Sab196087 */ 398*f3324781Sab196087 #define OFL_DO_RELOC(_ofl) (((_ofl)->ofl_flags & FLG_OF_RELOBJ) || \ 399*f3324781Sab196087 !((_ofl)->ofl_dtflags_1 & DF_1_NORELOC)) 400*f3324781Sab196087 401*f3324781Sab196087 /* 402*f3324781Sab196087 * Determine whether relocation processing needs to swap the 403*f3324781Sab196087 * data being relocated. 404*f3324781Sab196087 */ 405*f3324781Sab196087 #define OFL_SWAP_RELOC_DATA(_ofl, _rel) \ 406*f3324781Sab196087 ((((_ofl)->ofl_flags1 & FLG_OF1_ENCDIFF) != 0) && \ 407*f3324781Sab196087 ((_rel)->rel_osdesc->os_shdr->sh_type == SHT_PROGBITS)) 408*f3324781Sab196087 409*f3324781Sab196087 /* 4107c478bd9Sstevel@tonic-gate * Relocation (active & output) processing structure - transparent to common 4117c478bd9Sstevel@tonic-gate * code. 4127c478bd9Sstevel@tonic-gate */ 4137c478bd9Sstevel@tonic-gate struct rel_desc { 4147c478bd9Sstevel@tonic-gate Os_desc *rel_osdesc; /* output section reloc is against */ 4157c478bd9Sstevel@tonic-gate Is_desc *rel_isdesc; /* input section reloc is against */ 4167c478bd9Sstevel@tonic-gate const char *rel_sname; /* symbol name (may be "unknown") */ 4177c478bd9Sstevel@tonic-gate Sym_desc *rel_sym; /* sym relocation is against */ 4187c478bd9Sstevel@tonic-gate Sym_desc *rel_usym; /* strong sym if this is a weak pair */ 4197c478bd9Sstevel@tonic-gate Mv_desc *rel_move; /* move table information */ 4207c478bd9Sstevel@tonic-gate Word rel_flags; /* misc. flags for relocations */ 4217c478bd9Sstevel@tonic-gate Word rel_rtype; /* relocation type */ 4227c478bd9Sstevel@tonic-gate Xword rel_roffset; /* relocation offset */ 4237c478bd9Sstevel@tonic-gate Sxword rel_raddend; /* addend from input relocation */ 4247c478bd9Sstevel@tonic-gate Word rel_typedata; /* ELF_R_TYPE_DATA(info) */ 4257c478bd9Sstevel@tonic-gate }; 4267c478bd9Sstevel@tonic-gate 4277c478bd9Sstevel@tonic-gate /* 4287c478bd9Sstevel@tonic-gate * common flags used on the Rel_desc structure (defined in machrel.h). 4297c478bd9Sstevel@tonic-gate */ 4307c478bd9Sstevel@tonic-gate #define FLG_REL_GOT 0x00000001 /* relocation against GOT */ 4317c478bd9Sstevel@tonic-gate #define FLG_REL_PLT 0x00000002 /* relocation against PLT */ 4327c478bd9Sstevel@tonic-gate #define FLG_REL_BSS 0x00000004 /* relocation against BSS */ 4337c478bd9Sstevel@tonic-gate #define FLG_REL_LOAD 0x00000008 /* section loadable */ 4347c478bd9Sstevel@tonic-gate #define FLG_REL_SCNNDX 0x00000010 /* use section index for symbol ndx */ 4357c478bd9Sstevel@tonic-gate #define FLG_REL_CLVAL 0x00000020 /* clear VALUE for active relocation */ 4367c478bd9Sstevel@tonic-gate #define FLG_REL_ADVAL 0x00000040 /* add VALUE for output relocation, */ 43763360950Smp204432 /* only relevant to SPARC and */ 4387c478bd9Sstevel@tonic-gate /* R_SPARC_RELATIVE */ 4397c478bd9Sstevel@tonic-gate #define FLG_REL_GOTCL 0x00000080 /* clear the GOT entry. This is */ 4407c478bd9Sstevel@tonic-gate /* relevant to RELA relocations, */ 4417c478bd9Sstevel@tonic-gate /* not REL (i386) relocations */ 4427c478bd9Sstevel@tonic-gate #define FLG_REL_MOVETAB 0x00000100 /* Relocation against .SUNW_move */ 4437c478bd9Sstevel@tonic-gate /* adjustments required before */ 4447c478bd9Sstevel@tonic-gate /* actual relocation */ 4457c478bd9Sstevel@tonic-gate #define FLG_REL_NOINFO 0x00000200 /* Relocation comes from a section */ 4467c478bd9Sstevel@tonic-gate /* with a null sh_info field */ 4477c478bd9Sstevel@tonic-gate #define FLG_REL_REG 0x00000400 /* Relocation target is reg sym */ 4487c478bd9Sstevel@tonic-gate #define FLG_REL_FPTR 0x00000800 /* relocation against func. desc. */ 4497c478bd9Sstevel@tonic-gate #define FLG_REL_RFPTR1 0x00001000 /* Relative relocation against */ 4507c478bd9Sstevel@tonic-gate /* 1st part of FD */ 4517c478bd9Sstevel@tonic-gate #define FLG_REL_RFPTR2 0x00002000 /* Relative relocation against */ 4527c478bd9Sstevel@tonic-gate /* 2nd part of FD */ 4537c478bd9Sstevel@tonic-gate #define FLG_REL_DISP 0x00004000 /* *disp* relocation */ 4547c478bd9Sstevel@tonic-gate #define FLG_REL_STLS 0x00008000 /* IE TLS reference to */ 4557c478bd9Sstevel@tonic-gate /* static TLS GOT index */ 4567c478bd9Sstevel@tonic-gate #define FLG_REL_DTLS 0x00010000 /* GD TLS reference relative to */ 4577c478bd9Sstevel@tonic-gate /* dynamic TLS GOT index */ 4587c478bd9Sstevel@tonic-gate #define FLG_REL_MTLS 0x00020000 /* LD TLS reference against GOT */ 4597c478bd9Sstevel@tonic-gate #define FLG_REL_STTLS 0x00040000 /* LE TLS reference directly */ 4607c478bd9Sstevel@tonic-gate /* to static tls index */ 4617c478bd9Sstevel@tonic-gate #define FLG_REL_TLSFIX 0x00080000 /* relocation points to TLS instr. */ 4627c478bd9Sstevel@tonic-gate /* which needs updating */ 4637c478bd9Sstevel@tonic-gate #define FLG_REL_RELA 0x00100000 /* descripter captures a Rela */ 4647c478bd9Sstevel@tonic-gate #define FLG_REL_GOTFIX 0x00200000 /* relocation points to GOTOP instr. */ 4657c478bd9Sstevel@tonic-gate /* which needs updating */ 4667c478bd9Sstevel@tonic-gate 4677c478bd9Sstevel@tonic-gate /* 4687c478bd9Sstevel@tonic-gate * Structure to hold a cache of Relocations. 4697c478bd9Sstevel@tonic-gate */ 4707c478bd9Sstevel@tonic-gate struct rel_cache { 4717c478bd9Sstevel@tonic-gate Rel_desc *rc_end; 4727c478bd9Sstevel@tonic-gate Rel_desc *rc_free; 4737c478bd9Sstevel@tonic-gate }; 4747c478bd9Sstevel@tonic-gate 4757c478bd9Sstevel@tonic-gate /* 4767c478bd9Sstevel@tonic-gate * Symbol value descriptor. For relocatable objects, each symbols value is 4777c478bd9Sstevel@tonic-gate * its offset within its associated section. Therefore, to uniquely define 4787c478bd9Sstevel@tonic-gate * each symbol within a reloctable object, record and sort the sh_offset and 4797c478bd9Sstevel@tonic-gate * symbol value. This information is used to seach for displacement 4807c478bd9Sstevel@tonic-gate * relocations as part of copy relocation validation. 4817c478bd9Sstevel@tonic-gate */ 4827c478bd9Sstevel@tonic-gate typedef struct { 4837c478bd9Sstevel@tonic-gate Addr ssv_value; 4847c478bd9Sstevel@tonic-gate Sym_desc *ssv_sdp; 4857c478bd9Sstevel@tonic-gate } Ssv_desc; 4867c478bd9Sstevel@tonic-gate 4877c478bd9Sstevel@tonic-gate /* 4887c478bd9Sstevel@tonic-gate * Input file processing structures. 4897c478bd9Sstevel@tonic-gate */ 4907c478bd9Sstevel@tonic-gate struct ifl_desc { /* input file descriptor */ 4917c478bd9Sstevel@tonic-gate const char *ifl_name; /* full file name */ 4927c478bd9Sstevel@tonic-gate const char *ifl_soname; /* shared object name */ 4937c478bd9Sstevel@tonic-gate dev_t ifl_stdev; /* device id and inode number for .so */ 4947c478bd9Sstevel@tonic-gate ino_t ifl_stino; /* multiple inclusion checks */ 4957c478bd9Sstevel@tonic-gate Ehdr *ifl_ehdr; /* elf header describing this file */ 4967c478bd9Sstevel@tonic-gate Elf *ifl_elf; /* elf descriptor for this file */ 4977c478bd9Sstevel@tonic-gate Sym_desc **ifl_oldndx; /* original symbol table indices */ 4987c478bd9Sstevel@tonic-gate Sym_desc *ifl_locs; /* symbol desc version of locals */ 4997c478bd9Sstevel@tonic-gate Ssv_desc *ifl_sortsyms; /* sorted list of symbols by value */ 5007c478bd9Sstevel@tonic-gate Word ifl_locscnt; /* no. of local symbols to process */ 5017c478bd9Sstevel@tonic-gate Word ifl_symscnt; /* total no. of symbols to process */ 5027c478bd9Sstevel@tonic-gate Word ifl_sortcnt; /* no. of sorted symbols to process */ 5037c478bd9Sstevel@tonic-gate Word ifl_shnum; /* number of sections in file */ 5047c478bd9Sstevel@tonic-gate Word ifl_shstrndx; /* index to .shstrtab */ 5057c478bd9Sstevel@tonic-gate Word ifl_vercnt; /* number of versions in file */ 5067c478bd9Sstevel@tonic-gate Is_desc **ifl_isdesc; /* isdesc[scn ndx] = Is_desc ptr */ 5077c478bd9Sstevel@tonic-gate Sdf_desc *ifl_sdfdesc; /* control definition */ 5087c478bd9Sstevel@tonic-gate Versym *ifl_versym; /* version symbol table array */ 5097c478bd9Sstevel@tonic-gate Ver_index *ifl_verndx; /* verndx[ver ndx] = Ver_index */ 5107c478bd9Sstevel@tonic-gate List ifl_verdesc; /* version descriptor list */ 5117c478bd9Sstevel@tonic-gate List ifl_relsect; /* relocation section list */ 512cc7efc4fSrie Alist *ifl_groups; /* SHT_GROUP section list */ 5137c478bd9Sstevel@tonic-gate Half ifl_neededndx; /* index to NEEDED in .dyn section */ 514d840867fSab196087 Word ifl_flags; /* Explicit/implicit reference */ 5157c478bd9Sstevel@tonic-gate }; 5167c478bd9Sstevel@tonic-gate 517d840867fSab196087 #define FLG_IF_CMDLINE 0x00000001 /* full filename specified from the */ 5187c478bd9Sstevel@tonic-gate /* command line (no -l) */ 519d840867fSab196087 #define FLG_IF_NEEDED 0x00000002 /* shared object should be recorded */ 520d840867fSab196087 #define FLG_IF_DIRECT 0x00000004 /* establish direct bindings to this */ 5217c478bd9Sstevel@tonic-gate /* object */ 522d840867fSab196087 #define FLG_IF_EXTRACT 0x00000008 /* file extracted from an archive */ 523d840867fSab196087 #define FLG_IF_VERNEED 0x00000010 /* version dependency information is */ 5247c478bd9Sstevel@tonic-gate /* required */ 525d840867fSab196087 #define FLG_IF_DEPREQD 0x00000020 /* dependency is required to satisfy */ 5267c478bd9Sstevel@tonic-gate /* symbol references */ 527d840867fSab196087 #define FLG_IF_NEEDSTR 0x00000040 /* dependency specified by -Nn */ 5287c478bd9Sstevel@tonic-gate /* flag */ 529d840867fSab196087 #define FLG_IF_IGNORE 0x00000080 /* ignore unused dependencies */ 530d840867fSab196087 #define FLG_IF_NODIRECT 0x00000100 /* object contains symbols that */ 5317c478bd9Sstevel@tonic-gate /* cannot be directly bound to. */ 532d840867fSab196087 #define FLG_IF_LAZYLD 0x00000200 /* bindings to this object should be */ 5337c478bd9Sstevel@tonic-gate /* lazy loaded */ 534d840867fSab196087 #define FLG_IF_GRPPRM 0x00000400 /* this dependency should have the */ 5357c478bd9Sstevel@tonic-gate /* DF_P1_GROUPPERM flag set */ 536d840867fSab196087 #define FLG_IF_DISPPEND 0x00000800 /* displacement relocation done */ 5377c478bd9Sstevel@tonic-gate /* in the ld time. */ 538d840867fSab196087 #define FLG_IF_DISPDONE 0x00001000 /* displacement relocation done */ 5397c478bd9Sstevel@tonic-gate /* at the run time */ 540d840867fSab196087 #define FLG_IF_MAPFILE 0x00002000 /* file is a mapfile */ 541d840867fSab196087 #define FLG_IF_HSTRTAB 0x00004000 /* file has a string section */ 542d840867fSab196087 #define FLG_IF_FILEREF 0x00008000 /* file contains a section which */ 5437c478bd9Sstevel@tonic-gate /* is included in the output */ 5447c478bd9Sstevel@tonic-gate /* allocatable image */ 545d840867fSab196087 #define FLG_IF_GNUVER 0x00010000 /* file used GNU-style versioning */ 5467c478bd9Sstevel@tonic-gate 5477c478bd9Sstevel@tonic-gate struct is_desc { /* input section descriptor */ 5487c478bd9Sstevel@tonic-gate const char *is_name; /* the section name */ 5497c478bd9Sstevel@tonic-gate const char *is_basename; /* original section name (without */ 5507c478bd9Sstevel@tonic-gate /* .<sect>%<func> munging */ 5517c478bd9Sstevel@tonic-gate Shdr *is_shdr; /* the elf section header */ 5527c478bd9Sstevel@tonic-gate Ifl_desc *is_file; /* infile desc for this section */ 5537c478bd9Sstevel@tonic-gate Os_desc *is_osdesc; /* new output section for this */ 5547c478bd9Sstevel@tonic-gate /* input section */ 5557c478bd9Sstevel@tonic-gate Elf_Data *is_indata; /* input sections raw data */ 5567c478bd9Sstevel@tonic-gate Is_desc *is_symshndx; /* related SHT_SYM_SHNDX section */ 5577c478bd9Sstevel@tonic-gate Word is_scnndx; /* original section index in file */ 5587c478bd9Sstevel@tonic-gate Word is_txtndx; /* Index for section. Used to decide */ 5597c478bd9Sstevel@tonic-gate /* where to insert section when */ 5607c478bd9Sstevel@tonic-gate /* reordering sections */ 5617c478bd9Sstevel@tonic-gate Word is_ident; /* preserved IDENT used for ordered */ 5627c478bd9Sstevel@tonic-gate /* sections. */ 5637c478bd9Sstevel@tonic-gate uint_t is_namehash; /* hash on section name */ 5647c478bd9Sstevel@tonic-gate Half is_key; /* Used for SHF_ORDERED */ 5657c478bd9Sstevel@tonic-gate Half is_flags; /* Various flags */ 5667c478bd9Sstevel@tonic-gate }; 5677c478bd9Sstevel@tonic-gate 5687c478bd9Sstevel@tonic-gate #define FLG_IS_ORDERED 0x0001 /* This is a SHF_ORDERED section */ 5697c478bd9Sstevel@tonic-gate #define FLG_IS_KEY 0x0002 /* This is a section pointed by */ 5707c478bd9Sstevel@tonic-gate /* sh_info of a SHF_ORDERED section */ 5717c478bd9Sstevel@tonic-gate #define FLG_IS_DISCARD 0x0004 /* section is to be discarded */ 5727c478bd9Sstevel@tonic-gate #define FLG_IS_RELUPD 0x0008 /* symbol defined here may have moved */ 5737c478bd9Sstevel@tonic-gate #define FLG_IS_SECTREF 0x0010 /* section has been referenced */ 5747c478bd9Sstevel@tonic-gate #define FLG_IS_GDATADEF 0x0020 /* section contains global data sym */ 57554d82594Sseizo #define FLG_IS_EXTERNAL 0x0040 /* isp from an user file */ 5767c478bd9Sstevel@tonic-gate 5777c478bd9Sstevel@tonic-gate 5787c478bd9Sstevel@tonic-gate /* 5797c478bd9Sstevel@tonic-gate * Map file and output file processing structures 5807c478bd9Sstevel@tonic-gate */ 5817c478bd9Sstevel@tonic-gate struct os_desc { /* Output section descriptor */ 5827c478bd9Sstevel@tonic-gate const char *os_name; /* the section name */ 5837c478bd9Sstevel@tonic-gate Elf_Scn *os_scn; /* the elf section descriptor */ 5847c478bd9Sstevel@tonic-gate Shdr *os_shdr; /* the elf section header */ 5857c478bd9Sstevel@tonic-gate Os_desc *os_relosdesc; /* the output relocation section */ 5867c478bd9Sstevel@tonic-gate List os_relisdescs; /* reloc input section descriptors */ 5877c478bd9Sstevel@tonic-gate /* for this output section */ 5887c478bd9Sstevel@tonic-gate List os_isdescs; /* list of input sections in output */ 5897c478bd9Sstevel@tonic-gate Sort_desc *os_sort; /* used for sorting sections */ 5907c478bd9Sstevel@tonic-gate Sg_desc *os_sgdesc; /* segment os_desc is placed on */ 5917c478bd9Sstevel@tonic-gate Elf_Data *os_outdata; /* output sections raw data */ 5927c478bd9Sstevel@tonic-gate List os_comdats; /* list of COMDAT sections present */ 5937c478bd9Sstevel@tonic-gate /* in current output section */ 5947c478bd9Sstevel@tonic-gate Word os_scnsymndx; /* index in output symtab of section */ 5957c478bd9Sstevel@tonic-gate /* symbol for this section */ 5967c478bd9Sstevel@tonic-gate Word os_txtndx; /* Index for section. Used to decide */ 5977c478bd9Sstevel@tonic-gate /* where to insert section when */ 5987c478bd9Sstevel@tonic-gate /* reordering sections */ 5997c478bd9Sstevel@tonic-gate Xword os_szoutrels; /* size of output relocation section */ 6007c478bd9Sstevel@tonic-gate uint_t os_namehash; /* hash on section name */ 6017c478bd9Sstevel@tonic-gate uchar_t os_flags; /* various flags */ 6027c478bd9Sstevel@tonic-gate }; 6037c478bd9Sstevel@tonic-gate 6047c478bd9Sstevel@tonic-gate #define FLG_OS_ORDER_KEY 0x01 /* include a sort key section */ 6057c478bd9Sstevel@tonic-gate #define FLG_OS_OUTREL 0x02 /* output rel against this section */ 606dd94ecefSrie #define FLG_OS_SECTREF 0x04 /* isps are not affected by -zignore */ 6077c478bd9Sstevel@tonic-gate 6087c478bd9Sstevel@tonic-gate /* 6097c478bd9Sstevel@tonic-gate * For sorting sections. 6107c478bd9Sstevel@tonic-gate */ 6117c478bd9Sstevel@tonic-gate struct sort_desc { 6127c478bd9Sstevel@tonic-gate Is_desc **st_order; 6137c478bd9Sstevel@tonic-gate Word st_ordercnt; 6147c478bd9Sstevel@tonic-gate Is_desc **st_before; 6157c478bd9Sstevel@tonic-gate Word st_beforecnt; 6167c478bd9Sstevel@tonic-gate Is_desc **st_after; 6177c478bd9Sstevel@tonic-gate Word st_aftercnt; 6187c478bd9Sstevel@tonic-gate }; 6197c478bd9Sstevel@tonic-gate 6207c478bd9Sstevel@tonic-gate struct sg_desc { /* output segment descriptor */ 6217c478bd9Sstevel@tonic-gate Phdr sg_phdr; /* segment header for output file */ 6227c478bd9Sstevel@tonic-gate const char *sg_name; /* segment name */ 6237c478bd9Sstevel@tonic-gate Xword sg_round; /* data rounding required (mapfile) */ 6247c478bd9Sstevel@tonic-gate Xword sg_length; /* maximum segment length; if 0 */ 6257c478bd9Sstevel@tonic-gate /* segment is not specified */ 6260bc07c75Srie Alist *sg_osdescs; /* list of output section descriptors */ 6270bc07c75Srie Alist *sg_secorder; /* list specifying section ordering */ 6280bc07c75Srie /* for the segment */ 6297c478bd9Sstevel@tonic-gate Half sg_flags; 6307c478bd9Sstevel@tonic-gate Sym_desc *sg_sizesym; /* size symbol for this segment */ 6317c478bd9Sstevel@tonic-gate Xword sg_addralign; /* LCM of sh_addralign */ 6327c478bd9Sstevel@tonic-gate Elf_Scn *sg_fscn; /* the SCN of the first section. */ 6337c478bd9Sstevel@tonic-gate }; 6347c478bd9Sstevel@tonic-gate 6357c478bd9Sstevel@tonic-gate 6367c478bd9Sstevel@tonic-gate #define FLG_SG_VADDR 0x0001 /* vaddr segment attribute set */ 6377c478bd9Sstevel@tonic-gate #define FLG_SG_PADDR 0x0002 /* paddr segment attribute set */ 6387c478bd9Sstevel@tonic-gate #define FLG_SG_LENGTH 0x0004 /* length segment attribute set */ 6397c478bd9Sstevel@tonic-gate #define FLG_SG_ALIGN 0x0008 /* align segment attribute set */ 6407c478bd9Sstevel@tonic-gate #define FLG_SG_ROUND 0x0010 /* round segment attribute set */ 6417c478bd9Sstevel@tonic-gate #define FLG_SG_FLAGS 0x0020 /* flags segment attribute set */ 6427c478bd9Sstevel@tonic-gate #define FLG_SG_TYPE 0x0040 /* type segment attribute set */ 6437c478bd9Sstevel@tonic-gate #define FLG_SG_ORDER 0x0080 /* has ordering been turned on for */ 6447c478bd9Sstevel@tonic-gate /* this segment. */ 6457c478bd9Sstevel@tonic-gate /* i.e. ?[O] option in mapfile */ 6467c478bd9Sstevel@tonic-gate #define FLG_SG_NOHDR 0x0100 /* don't map ELF or phdrs into */ 6477c478bd9Sstevel@tonic-gate /* this segment */ 6487c478bd9Sstevel@tonic-gate #define FLG_SG_EMPTY 0x0200 /* an empty segment specification */ 6497c478bd9Sstevel@tonic-gate /* no input sections will be */ 6507c478bd9Sstevel@tonic-gate /* associated to this section */ 6517c478bd9Sstevel@tonic-gate #define FLG_SG_KEY 0x0400 /* include a key section */ 6527c478bd9Sstevel@tonic-gate #define FLG_SG_DISABLED 0x0800 /* this segment is disabled */ 65354d82594Sseizo #define FLG_SG_PHREQ 0x1000 /* this segment requires a program */ 65454d82594Sseizo /* header */ 6557c478bd9Sstevel@tonic-gate 6567c478bd9Sstevel@tonic-gate struct sec_order { 6577c478bd9Sstevel@tonic-gate const char *sco_secname; /* section name to be ordered */ 6587c478bd9Sstevel@tonic-gate Word sco_index; /* ordering index for section */ 6597c478bd9Sstevel@tonic-gate Half sco_flags; 6607c478bd9Sstevel@tonic-gate }; 6617c478bd9Sstevel@tonic-gate 6627c478bd9Sstevel@tonic-gate #define FLG_SGO_USED 0x0001 /* was ordering used? */ 6637c478bd9Sstevel@tonic-gate 6647c478bd9Sstevel@tonic-gate struct ent_desc { /* input section entrance criteria */ 6657c478bd9Sstevel@tonic-gate List ec_files; /* files from which to accept */ 6667c478bd9Sstevel@tonic-gate /* sections */ 6677c478bd9Sstevel@tonic-gate const char *ec_name; /* name to match (NULL if none) */ 6687c478bd9Sstevel@tonic-gate Word ec_type; /* section type */ 66954d82594Sseizo Word ec_attrmask; /* section attribute mask (AWX) */ 67054d82594Sseizo Word ec_attrbits; /* sections attribute bits */ 6717c478bd9Sstevel@tonic-gate Sg_desc *ec_segment; /* output segment to enter if matched */ 6727c478bd9Sstevel@tonic-gate Word ec_ndx; /* index to determine where section */ 6737c478bd9Sstevel@tonic-gate /* meeting this criteria should */ 6747c478bd9Sstevel@tonic-gate /* inserted. Used for reordering */ 6757c478bd9Sstevel@tonic-gate /* of sections. */ 6767c478bd9Sstevel@tonic-gate Half ec_flags; 6777c478bd9Sstevel@tonic-gate }; 6787c478bd9Sstevel@tonic-gate 6797c478bd9Sstevel@tonic-gate #define FLG_EC_USED 0x0001 /* entrance criteria met? */ 6807c478bd9Sstevel@tonic-gate 6817c478bd9Sstevel@tonic-gate /* 6827c478bd9Sstevel@tonic-gate * Move supplementary structures 6837c478bd9Sstevel@tonic-gate * Sorted by symbol local/global and then by name. 6847c478bd9Sstevel@tonic-gate */ 6857c478bd9Sstevel@tonic-gate typedef struct psym_info { 6867c478bd9Sstevel@tonic-gate Sym_desc *psym_symd; /* partially initialized symbol */ 6877c478bd9Sstevel@tonic-gate Word psym_num; /* number of move entires */ 6887c478bd9Sstevel@tonic-gate Half psym_flag; /* various flag */ 6897c478bd9Sstevel@tonic-gate List psym_mvs; /* the list of move entries */ 6907c478bd9Sstevel@tonic-gate } Psym_info; 6917c478bd9Sstevel@tonic-gate 6927c478bd9Sstevel@tonic-gate #define FLG_PSYM_OVERLAP 0x01 /* Overlapping */ 6937c478bd9Sstevel@tonic-gate 6947c478bd9Sstevel@tonic-gate /* 6957c478bd9Sstevel@tonic-gate * One structure is allocated for a move entry. 6967c478bd9Sstevel@tonic-gate */ 6977c478bd9Sstevel@tonic-gate typedef struct mv_itm { 6987c478bd9Sstevel@tonic-gate Xword mv_start; /* start position */ 6997c478bd9Sstevel@tonic-gate Xword mv_length; /* The length of initialization */ 7007c478bd9Sstevel@tonic-gate Half mv_flag; /* various flags */ 7017c478bd9Sstevel@tonic-gate Is_desc *mv_isp; /* input desc. this entry is from */ 7027c478bd9Sstevel@tonic-gate Move *mv_ientry; /* Input Move_entry */ 7037c478bd9Sstevel@tonic-gate Word mv_oidx; /* Output Move_entry index */ 7047c478bd9Sstevel@tonic-gate } Mv_itm; 7057c478bd9Sstevel@tonic-gate 7067c478bd9Sstevel@tonic-gate #define FLG_MV_OUTSECT 0x01 /* Will be in move section */ 7077c478bd9Sstevel@tonic-gate 7087c478bd9Sstevel@tonic-gate /* 7097c478bd9Sstevel@tonic-gate * Define a move descripter used within relocation structures. 7107c478bd9Sstevel@tonic-gate */ 7117c478bd9Sstevel@tonic-gate struct mv_desc { 7127c478bd9Sstevel@tonic-gate Move *mvd_move; 7137c478bd9Sstevel@tonic-gate Sym_desc *mvd_sym; 7147c478bd9Sstevel@tonic-gate }; 7157c478bd9Sstevel@tonic-gate 7167c478bd9Sstevel@tonic-gate struct sym_desc { 7177c478bd9Sstevel@tonic-gate List sd_GOTndxs; /* list of associated GOT entries */ 7187c478bd9Sstevel@tonic-gate Sym *sd_sym; /* pointer to symbol table entry */ 7197c478bd9Sstevel@tonic-gate Sym *sd_osym; /* copy of the original symbol entry */ 720d326b23bSrie /* used only for local partial */ 721d326b23bSrie Psym_info *sd_psyminfo; /* for partial symbols, maintain a */ 722d326b23bSrie /* pointer to parsym_info */ 7237c478bd9Sstevel@tonic-gate const char *sd_name; /* symbols name */ 7247c478bd9Sstevel@tonic-gate Ifl_desc *sd_file; /* file where symbol is taken */ 7257c478bd9Sstevel@tonic-gate Is_desc *sd_isc; /* input section of symbol definition */ 7267c478bd9Sstevel@tonic-gate Sym_aux *sd_aux; /* auxiliary global symbol info. */ 7277c478bd9Sstevel@tonic-gate Word sd_symndx; /* index in output symbol table */ 7287c478bd9Sstevel@tonic-gate Word sd_shndx; /* sect. index sym is associated w/ */ 7297c478bd9Sstevel@tonic-gate Word sd_flags; /* state flags */ 7307c478bd9Sstevel@tonic-gate Half sd_flags1; /* more symbol flags */ 7317c478bd9Sstevel@tonic-gate Half sd_ref; /* reference definition of symbol */ 7327c478bd9Sstevel@tonic-gate }; 7337c478bd9Sstevel@tonic-gate 7347c478bd9Sstevel@tonic-gate /* 7357c478bd9Sstevel@tonic-gate * The auxiliary symbol descriptor contains the additional information (beyond 7367c478bd9Sstevel@tonic-gate * the symbol descriptor) required to process global symbols. These symbols are 7377c478bd9Sstevel@tonic-gate * accessed via an internal symbol hash table where locality of reference is 7387c478bd9Sstevel@tonic-gate * important for performance. 7397c478bd9Sstevel@tonic-gate */ 7407c478bd9Sstevel@tonic-gate struct sym_aux { 7417c478bd9Sstevel@tonic-gate List sa_dfiles; /* files where symbol is defined */ 7427c478bd9Sstevel@tonic-gate Sym sa_sym; /* copy of symtab entry */ 7437c478bd9Sstevel@tonic-gate const char *sa_vfile; /* first unavailable definition */ 7447c478bd9Sstevel@tonic-gate Ifl_desc *sa_bindto; /* symbol to bind to - for translator */ 7457c478bd9Sstevel@tonic-gate const char *sa_rfile; /* file with first symbol referenced */ 7467c478bd9Sstevel@tonic-gate Word sa_hash; /* the pure hash value of symbol */ 7477c478bd9Sstevel@tonic-gate Word sa_PLTndx; /* index into PLT for symbol */ 7487c478bd9Sstevel@tonic-gate Word sa_PLTGOTndx; /* GOT entry indx for PLT indirection */ 749d579eb63Sab196087 Word sa_linkndx; /* index of associated symbol from */ 750d579eb63Sab196087 /* ET_DYN file */ 7517c478bd9Sstevel@tonic-gate Half sa_symspec; /* special symbol ids */ 7527c478bd9Sstevel@tonic-gate Half sa_overndx; /* output file versioning index */ 7537c478bd9Sstevel@tonic-gate Half sa_dverndx; /* dependency versioning index */ 7547c478bd9Sstevel@tonic-gate }; 7557c478bd9Sstevel@tonic-gate 7567c478bd9Sstevel@tonic-gate 7577c478bd9Sstevel@tonic-gate /* 7587c478bd9Sstevel@tonic-gate * Nodes used to track symbols in the global AVL symbol dictionary. 7597c478bd9Sstevel@tonic-gate */ 7607c478bd9Sstevel@tonic-gate struct sym_avlnode { 7617c478bd9Sstevel@tonic-gate avl_node_t sav_node; /* AVL node */ 7627c478bd9Sstevel@tonic-gate Word sav_hash; /* symbol hash value */ 7637c478bd9Sstevel@tonic-gate const char *sav_name; /* symbol name */ 7647c478bd9Sstevel@tonic-gate Sym_desc *sav_symdesc; /* SymDesc entry */ 7657c478bd9Sstevel@tonic-gate }; 7667c478bd9Sstevel@tonic-gate 7677c478bd9Sstevel@tonic-gate /* 7687c478bd9Sstevel@tonic-gate * These are the ids for processing of `Special symbols'. They are used 7697c478bd9Sstevel@tonic-gate * to set the sym->sd_aux->sa_symspec field. 7707c478bd9Sstevel@tonic-gate */ 7717c478bd9Sstevel@tonic-gate #define SDAUX_ID_ETEXT 1 /* etext && _etext symbol */ 7727c478bd9Sstevel@tonic-gate #define SDAUX_ID_EDATA 2 /* edata && _edata symbol */ 7737c478bd9Sstevel@tonic-gate #define SDAUX_ID_END 3 /* end, _end, && _END_ symbol */ 7747c478bd9Sstevel@tonic-gate #define SDAUX_ID_DYN 4 /* DYNAMIC && _DYNAMIC symbol */ 7757c478bd9Sstevel@tonic-gate #define SDAUX_ID_PLT 5 /* _PROCEDURE_LINKAGE_TABLE_ symbol */ 7767c478bd9Sstevel@tonic-gate #define SDAUX_ID_GOT 6 /* _GLOBAL_OFFSET_TABLE_ symbol */ 7777c478bd9Sstevel@tonic-gate #define SDAUX_ID_START 7 /* START_ && _START_ symbol */ 7787c478bd9Sstevel@tonic-gate 7797c478bd9Sstevel@tonic-gate /* 7807c478bd9Sstevel@tonic-gate * Flags for sym_desc.sd_flags 7817c478bd9Sstevel@tonic-gate */ 7827c478bd9Sstevel@tonic-gate #define FLG_SY_MVTOCOMM 0x00000001 /* assign symbol to common (.bss) */ 7837c478bd9Sstevel@tonic-gate /* this is a result of a */ 7847c478bd9Sstevel@tonic-gate /* copy reloc against sym */ 7857c478bd9Sstevel@tonic-gate #define FLG_SY_GLOBREF 0x00000002 /* a global reference has been seen */ 7867c478bd9Sstevel@tonic-gate #define FLG_SY_WEAKDEF 0x00000004 /* a weak definition has been used */ 7877c478bd9Sstevel@tonic-gate #define FLG_SY_CLEAN 0x00000008 /* `Sym' entry points to original */ 7887c478bd9Sstevel@tonic-gate /* input file (read-only). */ 7897c478bd9Sstevel@tonic-gate #define FLG_SY_UPREQD 0x00000010 /* symbol value update is required, */ 7907c478bd9Sstevel@tonic-gate /* either it's used as an entry */ 7917c478bd9Sstevel@tonic-gate /* point or for relocation, but */ 7927c478bd9Sstevel@tonic-gate /* it must be updated even if */ 7937c478bd9Sstevel@tonic-gate /* the -s flag is in effect */ 7947c478bd9Sstevel@tonic-gate #define FLG_SY_NOTAVAIL 0x00000020 /* symbol is not available to the */ 7957c478bd9Sstevel@tonic-gate /* application either because it */ 7967c478bd9Sstevel@tonic-gate /* originates from an implicitly */ 7977c478bd9Sstevel@tonic-gate /* referenced shared object, or */ 7987c478bd9Sstevel@tonic-gate /* because it is not part of a */ 7997c478bd9Sstevel@tonic-gate /* specified version. */ 8007c478bd9Sstevel@tonic-gate #define FLG_SY_REDUCED 0x00000040 /* a global is reduced to local */ 8017c478bd9Sstevel@tonic-gate #define FLG_SY_VERSPROM 0x00000080 /* version definition has been */ 8027c478bd9Sstevel@tonic-gate /* promoted to output file */ 8037c478bd9Sstevel@tonic-gate #define FLG_SY_PROT 0x00000100 /* stv_protected visibility seen */ 8047c478bd9Sstevel@tonic-gate 8057c478bd9Sstevel@tonic-gate #define FLG_SY_MAPREF 0x00000200 /* symbol reference generated by user */ 8067c478bd9Sstevel@tonic-gate /* from mapfile */ 8077c478bd9Sstevel@tonic-gate #define FLG_SY_REFRSD 0x00000400 /* symbols sd_ref has been raised */ 8087c478bd9Sstevel@tonic-gate /* due to a copy-relocs */ 8097c478bd9Sstevel@tonic-gate /* weak-strong pairing */ 8109a411307Srie #define FLG_SY_INTPOSE 0x00000800 /* symbol defines an interposer */ 8117c478bd9Sstevel@tonic-gate #define FLG_SY_INVALID 0x00001000 /* unwanted/erroneous symbol */ 8127c478bd9Sstevel@tonic-gate #define FLG_SY_SMGOT 0x00002000 /* small got index assigned to symbol */ 8137c478bd9Sstevel@tonic-gate /* sparc only */ 8147c478bd9Sstevel@tonic-gate #define FLG_SY_PARENT 0x00004000 /* symbol to be found in parent */ 8157c478bd9Sstevel@tonic-gate /* only used with direct bindings */ 8167c478bd9Sstevel@tonic-gate #define FLG_SY_LAZYLD 0x00008000 /* symbol to cause lazyloading of */ 8177c478bd9Sstevel@tonic-gate /* parent object */ 8187c478bd9Sstevel@tonic-gate #define FLG_SY_ISDISC 0x00010000 /* symbol is a member of a DISCARDED */ 8197c478bd9Sstevel@tonic-gate /* section (COMDAT) */ 8207c478bd9Sstevel@tonic-gate #define FLG_SY_PAREXPN 0x00020000 /* partially init. symbol to be */ 8217c478bd9Sstevel@tonic-gate /* expanded */ 8227c478bd9Sstevel@tonic-gate #define FLG_SY_PLTPAD 0x00040000 /* pltpadding has been allocated for */ 8237c478bd9Sstevel@tonic-gate /* this symbol */ 8247c478bd9Sstevel@tonic-gate #define FLG_SY_REGSYM 0x00080000 /* REGISTER symbol (sparc only) */ 8257c478bd9Sstevel@tonic-gate #define FLG_SY_SOFOUND 0x00100000 /* compared against an SO definition */ 8267c478bd9Sstevel@tonic-gate #define FLG_SY_EXTERN 0x00200000 /* symbol is external, allows -zdefs */ 8277c478bd9Sstevel@tonic-gate /* error suppression */ 8287c478bd9Sstevel@tonic-gate #define FLG_SY_MAPUSED 0x00400000 /* mapfile symbol used (occurred */ 8297c478bd9Sstevel@tonic-gate /* within a relocatable object) */ 8307c478bd9Sstevel@tonic-gate #define FLG_SY_COMMEXP 0x00800000 /* COMMON symbol which has been */ 8317c478bd9Sstevel@tonic-gate /* allocated */ 8327c478bd9Sstevel@tonic-gate #define FLG_SY_CMDREF 0x01000000 /* symbol was referenced from the */ 8337c478bd9Sstevel@tonic-gate /* command line. (ld -u <>, */ 8347c478bd9Sstevel@tonic-gate /* ld -zrtldinfo=<>, ...) */ 8357c478bd9Sstevel@tonic-gate #define FLG_SY_SPECSEC 0x02000000 /* section index is reserved value */ 8367c478bd9Sstevel@tonic-gate /* ABS, COMMON, ... */ 8377c478bd9Sstevel@tonic-gate #define FLG_SY_TENTSYM 0x04000000 /* tentative symbol */ 8387c478bd9Sstevel@tonic-gate #define FLG_SY_VISIBLE 0x08000000 /* symbols visibility determined */ 8397c478bd9Sstevel@tonic-gate #define FLG_SY_STDFLTR 0x10000000 /* symbol is a standard filter */ 8407c478bd9Sstevel@tonic-gate #define FLG_SY_AUXFLTR 0x20000000 /* symbol is an auxiliary filter */ 841d579eb63Sab196087 #define FLG_SY_DYNSORT 0x40000000 /* req. in dyn[sym|tls]sort section */ 842d579eb63Sab196087 #define FLG_SY_NODYNSORT 0x80000000 /* excluded from dyn[sym_tls]sort sec */ 8437c478bd9Sstevel@tonic-gate 8447c478bd9Sstevel@tonic-gate /* 8457c478bd9Sstevel@tonic-gate * Sym_desc.sd_flags1 8467c478bd9Sstevel@tonic-gate */ 8477c478bd9Sstevel@tonic-gate #define FLG_SY1_GLOB 0x00000001 /* global symbol, remain global */ 8487c478bd9Sstevel@tonic-gate #define FLG_SY1_PROT 0x00000002 /* global symbol, reduce to protected */ 8497c478bd9Sstevel@tonic-gate #define FLG_SY1_LOCL 0x00000004 /* global symbol, reduce to local */ 8507c478bd9Sstevel@tonic-gate #define FLG_SY1_DIR 0x00000008 /* global symbol, direct bindings */ 8517c478bd9Sstevel@tonic-gate #define FLG_SY1_NDIR 0x00000010 /* global symbol, nondirect bindings */ 8527c478bd9Sstevel@tonic-gate #define FLG_SY1_ELIM 0x00000020 /* global symbol, eliminate */ 8537c478bd9Sstevel@tonic-gate #define FLG_SY1_IGNORE 0x00000040 /* symbol should be ignored */ 8547c478bd9Sstevel@tonic-gate 8557c478bd9Sstevel@tonic-gate #define MSK_SY1_DEFINED (FLG_SY1_GLOB | FLG_SY1_PROT | FLG_SY1_LOCL) 8567c478bd9Sstevel@tonic-gate /* The above mask indicates that */ 8577c478bd9Sstevel@tonic-gate /* a symbol has been explicitly */ 8587c478bd9Sstevel@tonic-gate /* scoped, and therefore is not */ 8597c478bd9Sstevel@tonic-gate /* a candidate for auto-reduction */ 8607c478bd9Sstevel@tonic-gate 8617c478bd9Sstevel@tonic-gate /* 8627c478bd9Sstevel@tonic-gate * create a mask for (Sym.St_other & visibility) since the 8637c478bd9Sstevel@tonic-gate * gABI does not yet define a ELF*_ST_OTHER macro. 8647c478bd9Sstevel@tonic-gate */ 8657c478bd9Sstevel@tonic-gate #define MSK_SYM_VISIBILITY 0x03 8667c478bd9Sstevel@tonic-gate 8677c478bd9Sstevel@tonic-gate /* 8687c478bd9Sstevel@tonic-gate * Structure to manage the shared object definition lists. There are two lists 8697c478bd9Sstevel@tonic-gate * that use this structure: 8707c478bd9Sstevel@tonic-gate * 8717c478bd9Sstevel@tonic-gate * o ofl_soneed; maintain the list of implicitly required dependencies 8727c478bd9Sstevel@tonic-gate * (ie. shared objects needed by other shared objects). These definitions 8737c478bd9Sstevel@tonic-gate * may include RPATH's required to locate the dependencies, and any 8747c478bd9Sstevel@tonic-gate * version requirements. 8757c478bd9Sstevel@tonic-gate * 8767c478bd9Sstevel@tonic-gate * o ofl_socntl; maintains the shared object control definitions. These are 8777c478bd9Sstevel@tonic-gate * provided by the user (via a mapfile) and are used to indicate any 8787c478bd9Sstevel@tonic-gate * SONAME translations and verion control requirements. 8797c478bd9Sstevel@tonic-gate */ 8807c478bd9Sstevel@tonic-gate struct sdf_desc { 8817c478bd9Sstevel@tonic-gate const char *sdf_name; /* the shared objects file name */ 8827c478bd9Sstevel@tonic-gate const char *sdf_soname; /* the shared objects SONAME */ 8837c478bd9Sstevel@tonic-gate char *sdf_rpath; /* library search path DT_RPATH */ 8847c478bd9Sstevel@tonic-gate const char *sdf_rfile; /* referencing file for diagnostics */ 8857c478bd9Sstevel@tonic-gate Ifl_desc *sdf_file; /* the final input file descriptor */ 8867c478bd9Sstevel@tonic-gate List sdf_vers; /* list of versions that are required */ 8877c478bd9Sstevel@tonic-gate /* from this object */ 8887c478bd9Sstevel@tonic-gate List sdf_verneed; /* list of VERNEEDS to create for */ 8897c478bd9Sstevel@tonic-gate /* this object (via SPECVERS or */ 8907c478bd9Sstevel@tonic-gate /* ADDVERS) */ 8917c478bd9Sstevel@tonic-gate Word sdf_flags; 8927c478bd9Sstevel@tonic-gate }; 8937c478bd9Sstevel@tonic-gate 8947c478bd9Sstevel@tonic-gate #define FLG_SDF_SONAME 0x02 /* An alternative SONAME is supplied */ 8957c478bd9Sstevel@tonic-gate #define FLG_SDF_SELECT 0x04 /* version control selection required */ 8967c478bd9Sstevel@tonic-gate #define FLG_SDF_VERIFY 0x08 /* version definition verification */ 8977c478bd9Sstevel@tonic-gate /* required */ 8987c478bd9Sstevel@tonic-gate #define FLG_SDF_SPECVER 0x10 /* specify VERNEEDS */ 8997c478bd9Sstevel@tonic-gate #define FLG_SDF_ADDVER 0x20 /* add VERNEED references */ 9007c478bd9Sstevel@tonic-gate 9017c478bd9Sstevel@tonic-gate /* 9027c478bd9Sstevel@tonic-gate * Structure to manage shared object version usage requirements. 9037c478bd9Sstevel@tonic-gate */ 9047c478bd9Sstevel@tonic-gate struct sdv_desc { 9057c478bd9Sstevel@tonic-gate const char *sdv_name; /* version name */ 9067c478bd9Sstevel@tonic-gate const char *sdv_ref; /* versions reference */ 9077c478bd9Sstevel@tonic-gate Word sdv_flags; /* flags */ 9087c478bd9Sstevel@tonic-gate }; 9097c478bd9Sstevel@tonic-gate 9107c478bd9Sstevel@tonic-gate #define FLG_SDV_MATCHED 0x01 /* VERDEF found and matched */ 9117c478bd9Sstevel@tonic-gate 9127c478bd9Sstevel@tonic-gate /* 9137c478bd9Sstevel@tonic-gate * Structures to manage versioning information. Two versioning structures are 9147c478bd9Sstevel@tonic-gate * defined: 9157c478bd9Sstevel@tonic-gate * 9167c478bd9Sstevel@tonic-gate * o a version descriptor maintains a linked list of versions and their 9177c478bd9Sstevel@tonic-gate * associated dependencies. This is used to build the version definitions 9187c478bd9Sstevel@tonic-gate * for an image being created (see map_symbol), and to determine the 9197c478bd9Sstevel@tonic-gate * version dependency graph for any input files that are versioned. 9207c478bd9Sstevel@tonic-gate * 9217c478bd9Sstevel@tonic-gate * o a version index array contains each version of an input file that is 9227c478bd9Sstevel@tonic-gate * being processed. It informs us which versions are available for 9237c478bd9Sstevel@tonic-gate * binding, and is used to generate any version dependency information. 9247c478bd9Sstevel@tonic-gate */ 9257c478bd9Sstevel@tonic-gate struct ver_desc { 9267c478bd9Sstevel@tonic-gate const char *vd_name; /* version name */ 9277c478bd9Sstevel@tonic-gate Word vd_hash; /* hash value of name */ 9287c478bd9Sstevel@tonic-gate Ifl_desc *vd_file; /* file that defined version */ 9297c478bd9Sstevel@tonic-gate Half vd_ndx; /* coordinates with symbol index */ 9307c478bd9Sstevel@tonic-gate Half vd_flags; /* version information */ 9317c478bd9Sstevel@tonic-gate List vd_deps; /* version dependencies */ 9327c478bd9Sstevel@tonic-gate Ver_desc *vd_ref; /* dependency's first reference */ 9337c478bd9Sstevel@tonic-gate }; 9347c478bd9Sstevel@tonic-gate 9357c478bd9Sstevel@tonic-gate struct ver_index { 9367c478bd9Sstevel@tonic-gate const char *vi_name; /* dependency version name */ 9377c478bd9Sstevel@tonic-gate Half vi_flags; /* communicates availability */ 9387c478bd9Sstevel@tonic-gate Ver_desc *vi_desc; /* cross reference to descriptor */ 9397c478bd9Sstevel@tonic-gate }; 9407c478bd9Sstevel@tonic-gate 9417c478bd9Sstevel@tonic-gate /* 9427c478bd9Sstevel@tonic-gate * Define any internal version descriptor flags ([vd|vi]_flags). Note that the 9437c478bd9Sstevel@tonic-gate * first byte is reserved for user visible flags (refer VER_FLG's in link.h). 9447c478bd9Sstevel@tonic-gate */ 9457c478bd9Sstevel@tonic-gate #define MSK_VER_USER 0x0f /* mask for user visible flags */ 9467c478bd9Sstevel@tonic-gate 9477c478bd9Sstevel@tonic-gate #define FLG_VER_AVAIL 0x10 /* version is available for binding */ 9487c478bd9Sstevel@tonic-gate #define FLG_VER_REFER 0x20 /* version has been referenced */ 9497c478bd9Sstevel@tonic-gate #define FLG_VER_SELECT 0x40 /* version has been selected by user */ 9507c478bd9Sstevel@tonic-gate #define FLG_VER_CYCLIC 0x80 /* a member of cyclic dependency */ 9517c478bd9Sstevel@tonic-gate 9527c478bd9Sstevel@tonic-gate 9537c478bd9Sstevel@tonic-gate /* 9547c478bd9Sstevel@tonic-gate * isalist(1) descriptor - used to break an isalist string into its component 9557c478bd9Sstevel@tonic-gate * options. 9567c478bd9Sstevel@tonic-gate */ 9577c478bd9Sstevel@tonic-gate struct isa_opt { 9587c478bd9Sstevel@tonic-gate char *isa_name; /* individual isa option name */ 9597c478bd9Sstevel@tonic-gate size_t isa_namesz; /* and associated size */ 9607c478bd9Sstevel@tonic-gate }; 9617c478bd9Sstevel@tonic-gate 9627c478bd9Sstevel@tonic-gate struct isa_desc { 9637c478bd9Sstevel@tonic-gate char *isa_list; /* sysinfo(SI_ISALIST) list */ 9647c478bd9Sstevel@tonic-gate size_t isa_listsz; /* and associated size */ 9657c478bd9Sstevel@tonic-gate Isa_opt *isa_opt; /* table of individual isa options */ 9667c478bd9Sstevel@tonic-gate size_t isa_optno; /* and associated number */ 9677c478bd9Sstevel@tonic-gate }; 9687c478bd9Sstevel@tonic-gate 9697c478bd9Sstevel@tonic-gate /* 9707c478bd9Sstevel@tonic-gate * uname(2) descriptor - used to break a utsname structure into its component 9717c478bd9Sstevel@tonic-gate * options (at least those that we're interested in). 9727c478bd9Sstevel@tonic-gate */ 9737c478bd9Sstevel@tonic-gate struct uts_desc { 9747c478bd9Sstevel@tonic-gate char *uts_osname; /* operating system name */ 9757c478bd9Sstevel@tonic-gate size_t uts_osnamesz; /* and associated size */ 9767c478bd9Sstevel@tonic-gate char *uts_osrel; /* operating system release */ 9777c478bd9Sstevel@tonic-gate size_t uts_osrelsz; /* and associated size */ 9787c478bd9Sstevel@tonic-gate }; 9797c478bd9Sstevel@tonic-gate 9807c478bd9Sstevel@tonic-gate 9817c478bd9Sstevel@tonic-gate /* 9827c478bd9Sstevel@tonic-gate * SHT_GROUP descriptor - used to track group sections at the global 9837c478bd9Sstevel@tonic-gate * level to resolve conflicts/determine which to keep. 9847c478bd9Sstevel@tonic-gate */ 9857c478bd9Sstevel@tonic-gate struct group_desc { 9867c478bd9Sstevel@tonic-gate const char *gd_gsectname; /* group section name */ 9877c478bd9Sstevel@tonic-gate const char *gd_symname; /* symbol name */ 988cc7efc4fSrie Word *gd_data; /* data for group section */ 989cc7efc4fSrie size_t gd_scnndx; /* group section index */ 990cc7efc4fSrie size_t gd_cnt; /* number of entries in group data */ 9917c478bd9Sstevel@tonic-gate Word gd_flags; 9927c478bd9Sstevel@tonic-gate }; 9937c478bd9Sstevel@tonic-gate 9947c478bd9Sstevel@tonic-gate #define GRP_FLG_DISCARD 0x0001 /* group is to be discarded */ 9957c478bd9Sstevel@tonic-gate 9967c478bd9Sstevel@tonic-gate /* 9977c478bd9Sstevel@tonic-gate * Indexes into the ld_support_funcs[] table. 9987c478bd9Sstevel@tonic-gate */ 9997c478bd9Sstevel@tonic-gate typedef enum { 10007c478bd9Sstevel@tonic-gate LDS_VERSION = 0, 10017c478bd9Sstevel@tonic-gate LDS_INPUT_DONE, 10027c478bd9Sstevel@tonic-gate LDS_START, 10037c478bd9Sstevel@tonic-gate LDS_ATEXIT, 10043906e0c2Srie LDS_OPEN, 10057c478bd9Sstevel@tonic-gate LDS_FILE, 10062926dd2eSrie LDS_INSEC, 10072926dd2eSrie LDS_SEC, 10087c478bd9Sstevel@tonic-gate LDS_NUM 10097c478bd9Sstevel@tonic-gate } Support_ndx; 10107c478bd9Sstevel@tonic-gate 10117c478bd9Sstevel@tonic-gate 10127c478bd9Sstevel@tonic-gate /* 10137c478bd9Sstevel@tonic-gate * Structure to manage archive member caching. Each archive has an archive 10147c478bd9Sstevel@tonic-gate * descriptor (Ar_desc) associated with it. This contains pointers to the 10157c478bd9Sstevel@tonic-gate * archive symbol table (obtained by elf_getarsyms(3e)) and an auxiliary 10167c478bd9Sstevel@tonic-gate * structure (Ar_uax[]) that parallels this symbol table. The member element 10177c478bd9Sstevel@tonic-gate * of this auxiliary table indicates whether the archive member associated with 10187c478bd9Sstevel@tonic-gate * the symbol offset has already been extracted (AREXTRACTED) or partially 10197c478bd9Sstevel@tonic-gate * processed (refer process_member()). 10207c478bd9Sstevel@tonic-gate */ 10217c478bd9Sstevel@tonic-gate typedef struct ar_mem { 10227c478bd9Sstevel@tonic-gate Elf *am_elf; /* elf descriptor for this member */ 10237c478bd9Sstevel@tonic-gate char *am_name; /* members name */ 10247c478bd9Sstevel@tonic-gate char *am_path; /* path (ie. lib(foo.o)) */ 10257c478bd9Sstevel@tonic-gate Sym *am_syms; /* start of global symbols */ 10267c478bd9Sstevel@tonic-gate char *am_strs; /* associated string table start */ 10277c478bd9Sstevel@tonic-gate Xword am_symn; /* no. of global symbols */ 10287c478bd9Sstevel@tonic-gate } Ar_mem; 10297c478bd9Sstevel@tonic-gate 10307c478bd9Sstevel@tonic-gate typedef struct ar_aux { 10317c478bd9Sstevel@tonic-gate Sym_desc *au_syms; /* internal symbol descriptor */ 10327c478bd9Sstevel@tonic-gate Ar_mem *au_mem; /* associated member */ 10337c478bd9Sstevel@tonic-gate } Ar_aux; 10347c478bd9Sstevel@tonic-gate 10357c478bd9Sstevel@tonic-gate #define FLG_ARMEM_PROC (Ar_mem *)-1 10367c478bd9Sstevel@tonic-gate 10377c478bd9Sstevel@tonic-gate typedef struct ar_desc { 10387c478bd9Sstevel@tonic-gate const char *ad_name; /* archive file name */ 10397c478bd9Sstevel@tonic-gate Elf *ad_elf; /* elf descriptor for the archive */ 10407c478bd9Sstevel@tonic-gate Elf_Arsym *ad_start; /* archive symbol table start */ 10417c478bd9Sstevel@tonic-gate Ar_aux *ad_aux; /* auxiliary symbol information */ 10427c478bd9Sstevel@tonic-gate dev_t ad_stdev; /* device id and inode number for */ 10437c478bd9Sstevel@tonic-gate ino_t ad_stino; /* multiple inclusion checks */ 10447c478bd9Sstevel@tonic-gate Word ad_flags; /* archive specific cmd line flags */ 10457c478bd9Sstevel@tonic-gate } Ar_desc; 10467c478bd9Sstevel@tonic-gate 10477c478bd9Sstevel@tonic-gate /* 10487c478bd9Sstevel@tonic-gate * Define any archive descriptor flags. NOTE, make sure they do not clash with 10497c478bd9Sstevel@tonic-gate * any output file descriptor archive extraction flags, as these are saved in 10507c478bd9Sstevel@tonic-gate * the same entry (see MSK_OF1_ARCHIVE). 10517c478bd9Sstevel@tonic-gate */ 10527c478bd9Sstevel@tonic-gate #define FLG_ARD_EXTRACT 0x00010000 /* archive member has been extracted */ 10537c478bd9Sstevel@tonic-gate 10547c478bd9Sstevel@tonic-gate /* 10555aefb655Srie * Function Declarations. 10567c478bd9Sstevel@tonic-gate */ 10575aefb655Srie #if defined(_ELF64) 10585aefb655Srie 10595aefb655Srie #define ld_create_outfile ld64_create_outfile 10605aefb655Srie #define ld_ent_setup ld64_ent_setup 1061c1c6f601Srie #define ld_init_strings ld64_init_strings 10625aefb655Srie #define ld_make_sections ld64_make_sections 10635aefb655Srie #define ld_main ld64_main 10642926dd2eSrie #define ld_ofl_cleanup ld64_ofl_cleanup 10655aefb655Srie #define ld_process_open ld64_process_open 10665aefb655Srie #define ld_reloc_init ld64_reloc_init 10675aefb655Srie #define ld_reloc_process ld64_reloc_process 10685aefb655Srie #define ld_sym_validate ld64_sym_validate 10695aefb655Srie #define ld_update_outfile ld64_update_outfile 10705aefb655Srie 10715aefb655Srie #else 10725aefb655Srie 10735aefb655Srie #define ld_create_outfile ld32_create_outfile 10745aefb655Srie #define ld_ent_setup ld32_ent_setup 1075c1c6f601Srie #define ld_init_strings ld32_init_strings 10765aefb655Srie #define ld_make_sections ld32_make_sections 10775aefb655Srie #define ld_main ld32_main 10782926dd2eSrie #define ld_ofl_cleanup ld32_ofl_cleanup 10795aefb655Srie #define ld_process_open ld32_process_open 10805aefb655Srie #define ld_reloc_init ld32_reloc_init 10815aefb655Srie #define ld_reloc_process ld32_reloc_process 10825aefb655Srie #define ld_sym_validate ld32_sym_validate 10835aefb655Srie #define ld_update_outfile ld32_update_outfile 10845aefb655Srie 10855aefb655Srie #endif 10865aefb655Srie 10875aefb655Srie extern int ld32_main(int, char **); 10885aefb655Srie extern int ld64_main(int, char **); 10895aefb655Srie 10905aefb655Srie extern uintptr_t ld_create_outfile(Ofl_desc *); 10915aefb655Srie extern uintptr_t ld_ent_setup(Ofl_desc *, Xword); 1092c1c6f601Srie extern uintptr_t ld_init_strings(Ofl_desc *); 10935aefb655Srie extern uintptr_t ld_make_sections(Ofl_desc *); 10942926dd2eSrie extern void ld_ofl_cleanup(Ofl_desc *); 10953906e0c2Srie extern Ifl_desc *ld_process_open(const char *, const char *, int *, 1096d840867fSab196087 Ofl_desc *, Word, Rej_desc *); 10975aefb655Srie extern uintptr_t ld_reloc_init(Ofl_desc *); 10985aefb655Srie extern uintptr_t ld_reloc_process(Ofl_desc *); 10995aefb655Srie extern uintptr_t ld_sym_validate(Ofl_desc *); 11005aefb655Srie extern uintptr_t ld_update_outfile(Ofl_desc *); 11015aefb655Srie 11027c478bd9Sstevel@tonic-gate #ifdef __cplusplus 11037c478bd9Sstevel@tonic-gate } 11047c478bd9Sstevel@tonic-gate #endif 11057c478bd9Sstevel@tonic-gate 11067c478bd9Sstevel@tonic-gate #endif /* _LIBLD_H */ 1107