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 * 26*69112eddSAli Bahrami * Copyright 2010 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 #include <stdlib.h> 347c478bd9Sstevel@tonic-gate #include <libelf.h> 357c478bd9Sstevel@tonic-gate #include <sgs.h> 36ba2be530Sab196087 #include <_machelf.h> 377c478bd9Sstevel@tonic-gate #include <string_table.h> 387c478bd9Sstevel@tonic-gate #include <sys/avl.h> 397c478bd9Sstevel@tonic-gate #include <alist.h> 40*69112eddSAli Bahrami #include <elfcap.h> 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate #ifdef __cplusplus 437c478bd9Sstevel@tonic-gate extern "C" { 447c478bd9Sstevel@tonic-gate #endif 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate /* 477c478bd9Sstevel@tonic-gate * Default directory search path manipulation for the link-editor. YLDIR 487c478bd9Sstevel@tonic-gate * indicates which directory in LIBPATH is replaced by the -YL option to cc 497c478bd9Sstevel@tonic-gate * and ld. YUDIR indicates which directory is replaced by -YU. 507c478bd9Sstevel@tonic-gate */ 517c478bd9Sstevel@tonic-gate #define YLDIR 1 527c478bd9Sstevel@tonic-gate #define YUDIR 2 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate /* 557c478bd9Sstevel@tonic-gate * Define a hash value that can never be returned from elf_hash(). 567c478bd9Sstevel@tonic-gate */ 577c478bd9Sstevel@tonic-gate #define SYM_NOHASH (~(Word)0) 587c478bd9Sstevel@tonic-gate 597c478bd9Sstevel@tonic-gate /* 60240e56feSab196087 * Macro that can be used to represent both ORDER flags 61240e56feSab196087 * in a section header. 627c478bd9Sstevel@tonic-gate */ 637c478bd9Sstevel@tonic-gate #define ALL_SHF_ORDER (SHF_ORDERED | SHF_LINK_ORDER) 64240e56feSab196087 65240e56feSab196087 /* 66240e56feSab196087 * The linker merges (concatenates) sections with the same name and 67240e56feSab196087 * compatible section header flags. When comparing these flags, 68240e56feSab196087 * there are some that should not be included in the decision. 69240e56feSab196087 * The ALL_SHF_IGNORE constant defines these flags. 70240e56feSab196087 * 71240e56feSab196087 * NOTE: SHF_MERGE|SHF_STRINGS: 72240e56feSab196087 * The compiler is allowed to set the SHF_MERGE|SHF_STRINGS flags in 73240e56feSab196087 * order to tell the linker that: 74240e56feSab196087 * 75240e56feSab196087 * 1) There is nothing in the section except null terminated strings. 76cce0e03bSab196087 * 2) Those strings do not contain NULL bytes, except as termination. 77cce0e03bSab196087 * 3) All references to these strings occur via standard relocation 78cce0e03bSab196087 * records. 79cce0e03bSab196087 * 80cce0e03bSab196087 * As a result, if two compatible sections both have these flags set, it is 81cce0e03bSab196087 * OK to combine the strings they contain into a single merged string table 82cce0e03bSab196087 * with duplicates removed and tail strings merged. 83240e56feSab196087 * 84240e56feSab196087 * This is a different meaning than the simple concatenating of sections 85240e56feSab196087 * that the linker always does. It is a hint that an additional optimization 86240e56feSab196087 * is possible, but not required. This means that sections that do not 87cce0e03bSab196087 * share the same SHF_MERGE|SHF_STRINGS values can be concatenated, 88cce0e03bSab196087 * but cannot have their duplicate strings combined. Hence, the 89cce0e03bSab196087 * SHF_MERGE|SHF_STRINGS flags should be ignored when deciding whether 90cce0e03bSab196087 * two sections can be concatenated. 91240e56feSab196087 */ 92240e56feSab196087 #define ALL_SHF_IGNORE (ALL_SHF_ORDER | SHF_GROUP | SHF_MERGE | SHF_STRINGS) 937c478bd9Sstevel@tonic-gate 947c478bd9Sstevel@tonic-gate /* 957c478bd9Sstevel@tonic-gate * Define symbol reference types for use in symbol resolution. 967c478bd9Sstevel@tonic-gate */ 977c478bd9Sstevel@tonic-gate typedef enum { 987c478bd9Sstevel@tonic-gate REF_DYN_SEEN, /* a .so symbol has been seen */ 997c478bd9Sstevel@tonic-gate REF_DYN_NEED, /* a .so symbol satisfies a .o symbol */ 1007c478bd9Sstevel@tonic-gate REF_REL_NEED, /* a .o symbol */ 1017c478bd9Sstevel@tonic-gate REF_NUM /* the number of symbol references */ 1027c478bd9Sstevel@tonic-gate } Symref; 1037c478bd9Sstevel@tonic-gate 1047c478bd9Sstevel@tonic-gate /* 1057c478bd9Sstevel@tonic-gate * GOT reference models 1067c478bd9Sstevel@tonic-gate */ 1077c478bd9Sstevel@tonic-gate typedef enum { 1087c478bd9Sstevel@tonic-gate GOT_REF_GENERIC, /* generic symbol reference */ 1097c478bd9Sstevel@tonic-gate GOT_REF_TLSIE, /* TLS initial exec (gnu) reference */ 1107c478bd9Sstevel@tonic-gate GOT_REF_TLSLD, /* TLS local dynamic reference */ 1117c478bd9Sstevel@tonic-gate GOT_REF_TLSGD /* TLS general dynamic reference */ 1127c478bd9Sstevel@tonic-gate } Gotref; 1137c478bd9Sstevel@tonic-gate 1147c478bd9Sstevel@tonic-gate typedef struct { 1157c478bd9Sstevel@tonic-gate Xword gn_addend; /* addend associated with GOT entry */ 1167c478bd9Sstevel@tonic-gate Sword gn_gotndx; /* GOT table index */ 1177c478bd9Sstevel@tonic-gate Gotref gn_gotref; 1187c478bd9Sstevel@tonic-gate } Gotndx; 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate /* 1217c478bd9Sstevel@tonic-gate * Got debugging structure. The got index is defined as a signed value as we 1227c478bd9Sstevel@tonic-gate * do so much mucking around with negative and positive gots on SPARC, and sign 1237c478bd9Sstevel@tonic-gate * extension is necessary when building 64-bit objects. On intel we explicitly 1247c478bd9Sstevel@tonic-gate * cast this variable to an unsigned value. 1257c478bd9Sstevel@tonic-gate */ 1267c478bd9Sstevel@tonic-gate typedef struct { 1277c478bd9Sstevel@tonic-gate Sym_desc *gt_sym; 1287c478bd9Sstevel@tonic-gate Gotndx gt_gndx; 1297c478bd9Sstevel@tonic-gate } Gottable; 1307c478bd9Sstevel@tonic-gate 1317c478bd9Sstevel@tonic-gate /* 1326b3ba5bdSAli Bahrami * The link-editor caches the results of sloppy relocation processing 13340e53e87SAli Bahrami * in a variable of type Rlxrel_cache. Symbols come for processing in sorted 13440e53e87SAli Bahrami * order, so a single item cache suffices to eliminate duplicate lookups. 13540e53e87SAli Bahrami * 13640e53e87SAli Bahrami * When sloppy relocation processing fails, the Rlxrel_rej enum reports 13740e53e87SAli Bahrami * the underlying reason. 1386b3ba5bdSAli Bahrami */ 13940e53e87SAli Bahrami typedef enum { 14040e53e87SAli Bahrami RLXREL_REJ_NONE = 0, /* Replacement symbol was found */ 14140e53e87SAli Bahrami RLXREL_REJ_TARGET, /* Target sec disallows relaxed relocations */ 14240e53e87SAli Bahrami RLXREL_REJ_SECTION, /* Either there is no replacement section, */ 14340e53e87SAli Bahrami /* or its attributes are incompatible */ 14440e53e87SAli Bahrami RLXREL_REJ_SYMBOL, /* Replacement symbol not found */ 14540e53e87SAli Bahrami } Rlxrel_rej; 14640e53e87SAli Bahrami 1476b3ba5bdSAli Bahrami typedef struct sreloc_cache { 1486b3ba5bdSAli Bahrami Sym_desc *sr_osdp; /* Original symbol */ 1496b3ba5bdSAli Bahrami Sym_desc *sr_rsdp; /* Replacement symbol */ 15040e53e87SAli Bahrami Rlxrel_rej sr_rej; /* Reason for failure if NULL sr_rsdp */ 15140e53e87SAli Bahrami } Rlxrel_cache; 1526b3ba5bdSAli Bahrami 1536b3ba5bdSAli Bahrami /* 154cdcc71c0SAli Bahrami * Nodes in an ofl_wrap AVL tree 155cdcc71c0SAli Bahrami * 156cdcc71c0SAli Bahrami * wsn_name is the name of the symbol to be wrapped. wsn_wrapname is used 157cdcc71c0SAli Bahrami * when we need to refer to the wrap symbol, and consists of the symbol 158cdcc71c0SAli Bahrami * name with a __wrap_ prefix. 159cdcc71c0SAli Bahrami */ 160cdcc71c0SAli Bahrami typedef struct wrap_sym_node { 161cdcc71c0SAli Bahrami avl_node_t wsn_avlnode; /* AVL book-keeping */ 162cdcc71c0SAli Bahrami const char *wsn_name; /* Symbol name: XXX */ 163cdcc71c0SAli Bahrami const char *wsn_wrapname; /* Wrap symbol name: __wrap_XXX */ 164cdcc71c0SAli Bahrami } WrapSymNode; 165cdcc71c0SAli Bahrami 166cdcc71c0SAli Bahrami 167cdcc71c0SAli Bahrami /* 168*69112eddSAli Bahrami * Bitmasks for a single capability. Capabilities come from input objects, 169*69112eddSAli Bahrami * augmented or replaced by mapfile directives. In addition, mapfile directives 170*69112eddSAli Bahrami * can be used to exclude bits that would otherwise be set in the output object. 171*69112eddSAli Bahrami */ 172*69112eddSAli Bahrami typedef struct { 173*69112eddSAli Bahrami elfcap_mask_t cm_value; /* Bitmask value */ 174*69112eddSAli Bahrami elfcap_mask_t cm_exclude; /* Bits to remove from final object */ 175*69112eddSAli Bahrami } CapMask; 176*69112eddSAli Bahrami 177*69112eddSAli Bahrami /* 178*69112eddSAli Bahrami * Combine the bitmask in a CapMask with the exclusion mask and 179*69112eddSAli Bahrami * return the resulting final value. 180*69112eddSAli Bahrami */ 181*69112eddSAli Bahrami #define CAPMASK_VALUE(_cbmp) ((_cbmp)->cm_value & ~(_cbmp)->cm_exclude) 182*69112eddSAli Bahrami 183*69112eddSAli Bahrami typedef struct { 184*69112eddSAli Bahrami CapMask c_hw_1; /* CA_SUNW_HW_1 capabilities */ 185*69112eddSAli Bahrami CapMask c_sf_1; /* CA_SUNW_SF_1 capabilities */ 186*69112eddSAli Bahrami CapMask c_hw_2; /* CA_SUNW_HW_2 capabilities */ 187*69112eddSAli Bahrami } Outcapset; 188*69112eddSAli Bahrami 189*69112eddSAli Bahrami 190*69112eddSAli Bahrami /* 1917c478bd9Sstevel@tonic-gate * Output file processing structure 1927c478bd9Sstevel@tonic-gate */ 1931d9df23bSab196087 typedef Lword ofl_flag_t; 1947c478bd9Sstevel@tonic-gate struct ofl_desc { 1957c478bd9Sstevel@tonic-gate char *ofl_sgsid; /* link-editor identification */ 1967c478bd9Sstevel@tonic-gate const char *ofl_name; /* full file name */ 1977c478bd9Sstevel@tonic-gate Elf *ofl_elf; /* elf_memory() elf descriptor */ 1987c478bd9Sstevel@tonic-gate Elf *ofl_welf; /* ELF_C_WRITE elf descriptor */ 1995aefb655Srie Ehdr *ofl_dehdr; /* default elf header, and new elf */ 2005aefb655Srie Ehdr *ofl_nehdr; /* header describing this file */ 2017c478bd9Sstevel@tonic-gate Phdr *ofl_phdr; /* program header descriptor */ 2027c478bd9Sstevel@tonic-gate Phdr *ofl_tlsphdr; /* TLS phdr */ 2037c478bd9Sstevel@tonic-gate int ofl_fd; /* file descriptor */ 2047c478bd9Sstevel@tonic-gate size_t ofl_size; /* image size */ 20557ef7aa9SRod Evans APlist *ofl_maps; /* list of input mapfiles */ 20657ef7aa9SRod Evans APlist *ofl_segs; /* list of segments */ 207*69112eddSAli Bahrami APlist *ofl_segs_order; /* SEGMENT_ORDER segments */ 208*69112eddSAli Bahrami avl_tree_t ofl_segs_avl; /* O(log N) access to named segments */ 209*69112eddSAli Bahrami APlist *ofl_ents; /* list of entrance descriptors */ 210*69112eddSAli Bahrami avl_tree_t ofl_ents_avl; /* O(log N) access to named ent. desc */ 21157ef7aa9SRod Evans APlist *ofl_objs; /* relocatable object file list */ 2127c478bd9Sstevel@tonic-gate Word ofl_objscnt; /* and count */ 21357ef7aa9SRod Evans APlist *ofl_ars; /* archive library list */ 2147c478bd9Sstevel@tonic-gate Word ofl_arscnt; /* and count */ 215551cffe3SAli Bahrami int ofl_ars_gsandx; /* archive group argv index. 0 means */ 216551cffe3SAli Bahrami /* no current group, < 0 means */ 217551cffe3SAli Bahrami /* error reported. >0 is cur ndx */ 218551cffe3SAli Bahrami Word ofl_ars_gsndx; /* current -zrescan-start ofl_ars ndx */ 21957ef7aa9SRod Evans APlist *ofl_sos; /* shared object list */ 2207c478bd9Sstevel@tonic-gate Word ofl_soscnt; /* and count */ 22157ef7aa9SRod Evans APlist *ofl_soneed; /* list of implicitly required .so's */ 22257ef7aa9SRod Evans APlist *ofl_socntl; /* list of .so control definitions */ 22357ef7aa9SRod Evans APlist *ofl_outrels; /* list of output relocations */ 2247c478bd9Sstevel@tonic-gate Word ofl_outrelscnt; /* and count */ 22557ef7aa9SRod Evans APlist *ofl_actrels; /* list of relocations to perform */ 2267c478bd9Sstevel@tonic-gate Word ofl_actrelscnt; /* and count */ 227c174926fSrie Word ofl_entrelscnt; /* no of relocations entered */ 22857ef7aa9SRod Evans Alist *ofl_copyrels; /* list of copy relocations */ 22957ef7aa9SRod Evans APlist *ofl_ordered; /* list of shf_ordered sections */ 230635216b6SRod Evans APlist *ofl_symdtent; /* list of syminfo symbols that need */ 231635216b6SRod Evans /* to reference .dynamic entries */ 23257ef7aa9SRod Evans APlist *ofl_ismove; /* list of .SUNW_move sections */ 23357ef7aa9SRod Evans APlist *ofl_ismoverel; /* list of relocation input section */ 2347c478bd9Sstevel@tonic-gate /* targeting to expanded area */ 23557ef7aa9SRod Evans APlist *ofl_parsyms; /* list of partially initialized */ 23657ef7aa9SRod Evans /* symbols (ie. move symbols) */ 23757ef7aa9SRod Evans APlist *ofl_extrarels; /* relocation sections which have */ 2387c478bd9Sstevel@tonic-gate /* a NULL sh_info */ 239cc7efc4fSrie avl_tree_t *ofl_groups; /* pointer to head of Groups AVL tree */ 24057ef7aa9SRod Evans APlist *ofl_initarray; /* list of init array func names */ 24157ef7aa9SRod Evans APlist *ofl_finiarray; /* list of fini array func names */ 24257ef7aa9SRod Evans APlist *ofl_preiarray; /* list of preinit array func names */ 24357ef7aa9SRod Evans APlist *ofl_rtldinfo; /* list of rtldinfo syms */ 24457ef7aa9SRod Evans APlist *ofl_osgroups; /* list of output GROUP sections */ 24557ef7aa9SRod Evans APlist *ofl_ostlsseg; /* pointer to sections in TLS segment */ 2467e16fca0SAli Bahrami APlist *ofl_unwind; /* list of unwind output sections */ 2477c478bd9Sstevel@tonic-gate Os_desc *ofl_unwindhdr; /* Unwind hdr */ 2487c478bd9Sstevel@tonic-gate avl_tree_t ofl_symavl; /* pointer to head of Syms AVL tree */ 2497c478bd9Sstevel@tonic-gate Sym_desc **ofl_regsyms; /* array of potential register */ 2507c478bd9Sstevel@tonic-gate Word ofl_regsymsno; /* symbols and array count */ 2517c478bd9Sstevel@tonic-gate Word ofl_regsymcnt; /* no. of output register symbols */ 2527c478bd9Sstevel@tonic-gate Word ofl_lregsymcnt; /* no. of local register symbols */ 2537c478bd9Sstevel@tonic-gate Sym_desc *ofl_dtracesym; /* ld -zdtrace= */ 2541d9df23bSab196087 ofl_flag_t ofl_flags; /* various state bits, args etc. */ 2551d9df23bSab196087 ofl_flag_t ofl_flags1; /* more flags */ 2567c478bd9Sstevel@tonic-gate void *ofl_entry; /* entry point (-e and Sym_desc *) */ 2577c478bd9Sstevel@tonic-gate char *ofl_filtees; /* shared objects we are a filter for */ 2587c478bd9Sstevel@tonic-gate const char *ofl_soname; /* (-h option) output file name for */ 2597c478bd9Sstevel@tonic-gate /* dynamic structure */ 2607c478bd9Sstevel@tonic-gate const char *ofl_interp; /* interpreter name used by exec() */ 2617c478bd9Sstevel@tonic-gate char *ofl_rpath; /* run path to store in .dynamic */ 2627c478bd9Sstevel@tonic-gate char *ofl_config; /* config path to store in .dynamic */ 26357ef7aa9SRod Evans APlist *ofl_ulibdirs; /* user supplied library search list */ 26457ef7aa9SRod Evans APlist *ofl_dlibdirs; /* default library search list */ 2657c478bd9Sstevel@tonic-gate Word ofl_vercnt; /* number of versions to generate */ 26657ef7aa9SRod Evans APlist *ofl_verdesc; /* list of version descriptors */ 2677c478bd9Sstevel@tonic-gate size_t ofl_verdefsz; /* size of version definition section */ 2687c478bd9Sstevel@tonic-gate size_t ofl_verneedsz; /* size of version needed section */ 2697c478bd9Sstevel@tonic-gate Word ofl_entercnt; /* no. of global symbols entered */ 2707c478bd9Sstevel@tonic-gate Word ofl_globcnt; /* no. of global symbols to output */ 2717c478bd9Sstevel@tonic-gate Word ofl_scopecnt; /* no. of scoped symbols to output */ 2729039eeafSab196087 Word ofl_dynscopecnt; /* no. scoped syms in .SUNW_ldynsym */ 2737c478bd9Sstevel@tonic-gate Word ofl_elimcnt; /* no. of eliminated symbols */ 2749039eeafSab196087 Word ofl_locscnt; /* no. of local symbols in .symtab */ 2759039eeafSab196087 Word ofl_dynlocscnt; /* no. local symbols in .SUNW_ldynsym */ 276d579eb63Sab196087 Word ofl_dynsymsortcnt; /* no. ndx in .SUNW_dynsymsort */ 277d579eb63Sab196087 Word ofl_dyntlssortcnt; /* no. ndx in .SUNW_dyntlssort */ 2787c478bd9Sstevel@tonic-gate Word ofl_dynshdrcnt; /* no. of output section in .dynsym */ 2797c478bd9Sstevel@tonic-gate Word ofl_shdrcnt; /* no. of output sections */ 2807c478bd9Sstevel@tonic-gate Str_tbl *ofl_shdrsttab; /* Str_tbl for shdr strtab */ 2817c478bd9Sstevel@tonic-gate Str_tbl *ofl_strtab; /* Str_tbl for symtab strtab */ 2827c478bd9Sstevel@tonic-gate Str_tbl *ofl_dynstrtab; /* Str_tbl for dymsym strtab */ 2837c478bd9Sstevel@tonic-gate Gotndx *ofl_tlsldgotndx; /* index to LD TLS_index structure */ 2847c478bd9Sstevel@tonic-gate Xword ofl_relocsz; /* size of output relocations */ 2857c478bd9Sstevel@tonic-gate Xword ofl_relocgotsz; /* size of .got relocations */ 2867c478bd9Sstevel@tonic-gate Xword ofl_relocpltsz; /* size of .plt relocations */ 2877c478bd9Sstevel@tonic-gate Xword ofl_relocbsssz; /* size of .bss (copy) relocations */ 2887c478bd9Sstevel@tonic-gate Xword ofl_relocrelsz; /* size of .rel[a] relocations */ 2897c478bd9Sstevel@tonic-gate Word ofl_relocincnt; /* no. of input relocations */ 2907c478bd9Sstevel@tonic-gate Word ofl_reloccnt; /* tot number of output relocations */ 2917c478bd9Sstevel@tonic-gate Word ofl_reloccntsub; /* tot numb of output relocations to */ 2927c478bd9Sstevel@tonic-gate /* skip (-zignore) */ 2937c478bd9Sstevel@tonic-gate Word ofl_relocrelcnt; /* tot number of relative */ 2947c478bd9Sstevel@tonic-gate /* relocations */ 2957c478bd9Sstevel@tonic-gate Word ofl_gotcnt; /* no. of .got entries */ 2967c478bd9Sstevel@tonic-gate Word ofl_pltcnt; /* no. of .plt entries */ 2977c478bd9Sstevel@tonic-gate Word ofl_pltpad; /* no. of .plt padd entries */ 2987c478bd9Sstevel@tonic-gate Word ofl_hashbkts; /* no. of hash buckets required */ 2997c478bd9Sstevel@tonic-gate Is_desc *ofl_isbss; /* .bss input section (globals) */ 30054d82594Sseizo Is_desc *ofl_islbss; /* .lbss input section (globals) */ 3017c478bd9Sstevel@tonic-gate Is_desc *ofl_istlsbss; /* .tlsbss input section (globals) */ 30235450702SAli Bahrami Is_desc *ofl_isparexpn; /* -z nopartial .data input section */ 3037c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynamic; /* .dynamic output section */ 3047c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynsym; /* .dynsym output section */ 3059039eeafSab196087 Os_desc *ofl_osldynsym; /* .SUNW_ldynsym output section */ 3067c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynstr; /* .dynstr output section */ 307d579eb63Sab196087 Os_desc *ofl_osdynsymsort; /* .SUNW_dynsymsort output section */ 308d579eb63Sab196087 Os_desc *ofl_osdyntlssort; /* .SUNW_dyntlssort output section */ 3097c478bd9Sstevel@tonic-gate Os_desc *ofl_osgot; /* .got output section */ 3107c478bd9Sstevel@tonic-gate Os_desc *ofl_oshash; /* .hash output section */ 3117c478bd9Sstevel@tonic-gate Os_desc *ofl_osinitarray; /* .initarray output section */ 3127c478bd9Sstevel@tonic-gate Os_desc *ofl_osfiniarray; /* .finiarray output section */ 3137c478bd9Sstevel@tonic-gate Os_desc *ofl_ospreinitarray; /* .preinitarray output section */ 3147c478bd9Sstevel@tonic-gate Os_desc *ofl_osinterp; /* .interp output section */ 3157c478bd9Sstevel@tonic-gate Os_desc *ofl_oscap; /* .SUNW_cap output section */ 3167c478bd9Sstevel@tonic-gate Os_desc *ofl_osplt; /* .plt output section */ 3177c478bd9Sstevel@tonic-gate Os_desc *ofl_osmove; /* .SUNW_move output section */ 3187c478bd9Sstevel@tonic-gate Os_desc *ofl_osrelhead; /* first relocation section */ 3197c478bd9Sstevel@tonic-gate Os_desc *ofl_osrel; /* .rel[a] relocation section */ 3207c478bd9Sstevel@tonic-gate Os_desc *ofl_osshstrtab; /* .shstrtab output section */ 3217c478bd9Sstevel@tonic-gate Os_desc *ofl_osstrtab; /* .strtab output section */ 3227c478bd9Sstevel@tonic-gate Os_desc *ofl_ossymtab; /* .symtab output section */ 3237c478bd9Sstevel@tonic-gate Os_desc *ofl_ossymshndx; /* .symtab_shndx output section */ 3247c478bd9Sstevel@tonic-gate Os_desc *ofl_osdynshndx; /* .dynsym_shndx output section */ 3259039eeafSab196087 Os_desc *ofl_osldynshndx; /* .SUNW_ldynsym_shndx output sec */ 3267c478bd9Sstevel@tonic-gate Os_desc *ofl_osverdef; /* .version definition output section */ 3277c478bd9Sstevel@tonic-gate Os_desc *ofl_osverneed; /* .version needed output section */ 3287c478bd9Sstevel@tonic-gate Os_desc *ofl_osversym; /* .version symbol ndx output section */ 3297c478bd9Sstevel@tonic-gate Word ofl_dtflags_1; /* DT_FLAGS_1 entries */ 3307c478bd9Sstevel@tonic-gate Word ofl_dtflags; /* DT_FLAGS entries */ 3317c478bd9Sstevel@tonic-gate Os_desc *ofl_ossyminfo; /* .SUNW_syminfo output section */ 33235450702SAli Bahrami Half ofl_parexpnndx; /* -z nopartial section index */ 3337c478bd9Sstevel@tonic-gate /* Ref. at perform_outreloc() in */ 3347c478bd9Sstevel@tonic-gate /* libld/{mach}/machrel.c */ 3357c478bd9Sstevel@tonic-gate Xword *ofl_checksum; /* DT_CHECKSUM value address */ 3367c478bd9Sstevel@tonic-gate char *ofl_depaudit; /* dependency auditing required (-P) */ 3377c478bd9Sstevel@tonic-gate char *ofl_audit; /* object auditing required (-p) */ 3387c478bd9Sstevel@tonic-gate Alist *ofl_symfltrs; /* per-symbol filtees and their */ 3397c478bd9Sstevel@tonic-gate Alist *ofl_dtsfltrs; /* associated .dynamic/.dynstrs */ 340*69112eddSAli Bahrami Outcapset ofl_ocapset; /* object capabilities */ 3415aefb655Srie Lm_list *ofl_lml; /* runtime link-map list */ 342d326b23bSrie Gottable *ofl_gottable; /* debugging got information */ 34340e53e87SAli Bahrami Rlxrel_cache ofl_sr_cache; /* Cache last result from */ 3446b3ba5bdSAli Bahrami /* sloppy_comdat_reloc() */ 34557ef7aa9SRod Evans APlist *ofl_maptext; /* mapfile added text sections */ 34657ef7aa9SRod Evans APlist *ofl_mapdata; /* mapfile added data sections */ 347cdcc71c0SAli Bahrami avl_tree_t *ofl_wrap; /* -z wrap symbols */ 3487c478bd9Sstevel@tonic-gate }; 3497c478bd9Sstevel@tonic-gate 3507c478bd9Sstevel@tonic-gate #define FLG_OF_DYNAMIC 0x00000001 /* generate dynamic output module */ 3517c478bd9Sstevel@tonic-gate #define FLG_OF_STATIC 0x00000002 /* generate static output module */ 3527c478bd9Sstevel@tonic-gate #define FLG_OF_EXEC 0x00000004 /* generate an executable */ 3537c478bd9Sstevel@tonic-gate #define FLG_OF_RELOBJ 0x00000008 /* generate a relocatable object */ 3547c478bd9Sstevel@tonic-gate #define FLG_OF_SHAROBJ 0x00000010 /* generate a shared object */ 3557c478bd9Sstevel@tonic-gate #define FLG_OF_BFLAG 0x00000020 /* do no special plt building: -b */ 3567c478bd9Sstevel@tonic-gate #define FLG_OF_IGNENV 0x00000040 /* ignore LD_LIBRARY_PATH: -i */ 3577c478bd9Sstevel@tonic-gate #define FLG_OF_STRIP 0x00000080 /* strip output: -s */ 3587c478bd9Sstevel@tonic-gate #define FLG_OF_NOWARN 0x00000100 /* disable symbol warnings: -t */ 3597c478bd9Sstevel@tonic-gate #define FLG_OF_NOUNDEF 0x00000200 /* allow no undefined symbols: -zdefs */ 3607c478bd9Sstevel@tonic-gate #define FLG_OF_PURETXT 0x00000400 /* allow no text relocations: -ztext */ 3617c478bd9Sstevel@tonic-gate #define FLG_OF_GENMAP 0x00000800 /* generate a memory map: -m */ 3627c478bd9Sstevel@tonic-gate #define FLG_OF_DYNLIBS 0x00001000 /* dynamic input allowed: -Bdynamic */ 3637c478bd9Sstevel@tonic-gate #define FLG_OF_SYMBOLIC 0x00002000 /* bind global symbols: -Bsymbolic */ 3647c478bd9Sstevel@tonic-gate #define FLG_OF_ADDVERS 0x00004000 /* add version stamp: -Qy */ 3659039eeafSab196087 #define FLG_OF_NOLDYNSYM 0x00008000 /* -znoldynsym set */ 366*69112eddSAli Bahrami #define FLG_OF_IS_ORDER 0x00010000 /* input section ordering within a */ 367*69112eddSAli Bahrami /* segment is required */ 368*69112eddSAli Bahrami #define FLG_OF_EC_FILES 0x00020000 /* Ent_desc exist w/non-NULL ec_files */ 3697c478bd9Sstevel@tonic-gate #define FLG_OF_TEXTREL 0x00040000 /* text relocations have been found */ 3707c478bd9Sstevel@tonic-gate #define FLG_OF_MULDEFS 0x00080000 /* multiple symbols are allowed */ 371dd94ecefSrie #define FLG_OF_TLSPHDR 0x00100000 /* a TLS program header is required */ 3727c478bd9Sstevel@tonic-gate #define FLG_OF_BLDGOT 0x00200000 /* build GOT table */ 3737c478bd9Sstevel@tonic-gate #define FLG_OF_VERDEF 0x00400000 /* record version definitions */ 3747c478bd9Sstevel@tonic-gate #define FLG_OF_VERNEED 0x00800000 /* record version dependencies */ 3757c478bd9Sstevel@tonic-gate #define FLG_OF_NOVERSEC 0x01000000 /* don't record version sections */ 3760e233487SRod Evans #define FLG_OF_KEY 0x02000000 /* file requires sort keys */ 3777c478bd9Sstevel@tonic-gate #define FLG_OF_PROCRED 0x04000000 /* process any symbol reductions by */ 3787c478bd9Sstevel@tonic-gate /* effecting the symbol table */ 3797c478bd9Sstevel@tonic-gate /* output and relocations */ 3807c478bd9Sstevel@tonic-gate #define FLG_OF_SYMINFO 0x08000000 /* create a syminfo section */ 3817c478bd9Sstevel@tonic-gate #define FLG_OF_AUX 0x10000000 /* ofl_filter is an auxiliary filter */ 3827c478bd9Sstevel@tonic-gate #define FLG_OF_FATAL 0x20000000 /* fatal error during input */ 3837c478bd9Sstevel@tonic-gate #define FLG_OF_WARN 0x40000000 /* warning during input processing. */ 3847c478bd9Sstevel@tonic-gate #define FLG_OF_VERBOSE 0x80000000 /* -z verbose flag set */ 3857c478bd9Sstevel@tonic-gate 3869a411307Srie #define FLG_OF_MAPSYMB 0x000100000000 /* symbolic scope definition seen */ 3879a411307Srie #define FLG_OF_MAPGLOB 0x000200000000 /* global scope definition seen */ 388e38a713aSrie #define FLG_OF_COMREL 0x000400000000 /* -z combreloc set, which enables */ 389e38a713aSrie /* DT_RELACNT tracking, */ 390e38a713aSrie #define FLG_OF_NOCOMREL 0x000800000000 /* -z nocombreloc set */ 39144bac77bSrie #define FLG_OF_AUTOLCL 0x001000000000 /* automatically reduce unspecified */ 39244bac77bSrie /* global symbols to locals */ 39344bac77bSrie #define FLG_OF_AUTOELM 0x002000000000 /* automatically eliminate */ 39444bac77bSrie /* unspecified global symbols */ 39544bac77bSrie #define FLG_OF_REDLSYM 0x004000000000 /* reduce local symbols */ 396*69112eddSAli Bahrami #define FLG_OF_OS_ORDER 0x008000000000 /* output section ordering required */ 397635216b6SRod Evans #define FLG_OF_OSABI 0x010000000000 /* tag object as ELFOSABI_SOLARIS */ 398e64d0ff9SAli Bahrami #define FLG_OF_ADJOSCNT 0x020000000000 /* ajust ofl_shdrcnt to accommodate */ 399e64d0ff9SAli Bahrami /* discarded sections */ 4009a411307Srie 4017c478bd9Sstevel@tonic-gate /* 4027c478bd9Sstevel@tonic-gate * In the flags1 arena, establish any options that are applicable to archive 4037c478bd9Sstevel@tonic-gate * extraction first, and associate a mask. These values are recorded with any 4047c478bd9Sstevel@tonic-gate * archive descriptor so that they may be reset should the archive require a 4057c478bd9Sstevel@tonic-gate * rescan to try and resolve undefined symbols. 4067c478bd9Sstevel@tonic-gate */ 407*69112eddSAli Bahrami #define FLG_OF1_ALLEXRT 0x0000000001 /* extract all members from an */ 4087c478bd9Sstevel@tonic-gate /* archive file */ 409*69112eddSAli Bahrami #define FLG_OF1_WEAKEXT 0x0000000002 /* allow archive extraction to */ 4107c478bd9Sstevel@tonic-gate /* resolve weak references */ 411*69112eddSAli Bahrami #define MSK_OF1_ARCHIVE 0x0000000003 /* archive flags mask */ 4127c478bd9Sstevel@tonic-gate 413*69112eddSAli Bahrami #define FLG_OF1_NOINTRP 0x0000000008 /* -z nointerp flag set */ 414*69112eddSAli Bahrami #define FLG_OF1_ZDIRECT 0x0000000010 /* -z direct flag set */ 415*69112eddSAli Bahrami #define FLG_OF1_NDIRECT 0x0000000020 /* no-direct bindings specified */ 416e38a713aSrie 417*69112eddSAli Bahrami #define FLG_OF1_RELDYN 0x0000000100 /* process .dynamic in rel obj */ 418*69112eddSAli Bahrami #define FLG_OF1_NRLXREL 0x0000000200 /* -z norelaxreloc flag set */ 419*69112eddSAli Bahrami #define FLG_OF1_RLXREL 0x0000000400 /* -z relaxreloc flag set */ 420*69112eddSAli Bahrami #define FLG_OF1_IGNORE 0x0000000800 /* ignore unused dependencies */ 421*69112eddSAli Bahrami 422*69112eddSAli Bahrami #define FLG_OF1_NOSGHND 0x0000001000 /* -z nosighandler flag set */ 423*69112eddSAli Bahrami #define FLG_OF1_TEXTOFF 0x0000002000 /* text relocations are ok */ 424*69112eddSAli Bahrami #define FLG_OF1_ABSEXEC 0x0000004000 /* -zabsexec set */ 425*69112eddSAli Bahrami #define FLG_OF1_LAZYLD 0x0000008000 /* lazy loading of objects enabled */ 426*69112eddSAli Bahrami #define FLG_OF1_GRPPRM 0x0000010000 /* dependencies are to have */ 4277c478bd9Sstevel@tonic-gate /* GROUPPERM enabled */ 428*69112eddSAli Bahrami #define FLG_OF1_OVRFLW 0x0000020000 /* size exceeds 32-bit limitation */ 4297c478bd9Sstevel@tonic-gate /* of 32-bit libld */ 430*69112eddSAli Bahrami #define FLG_OF1_NOPARTI 0x0000040000 /* -znopartial set */ 431*69112eddSAli Bahrami #define FLG_OF1_BSSOREL 0x0000080000 /* output relocation against bss */ 4327c478bd9Sstevel@tonic-gate /* section */ 433*69112eddSAli Bahrami #define FLG_OF1_TLSOREL 0x0000100000 /* output relocation against .tlsbss */ 4347c478bd9Sstevel@tonic-gate /* section */ 435*69112eddSAli Bahrami #define FLG_OF1_MEMORY 0x0000200000 /* produce a memory model */ 436*69112eddSAli Bahrami #define FLG_OF1_NGLBDIR 0x0000400000 /* no DT_1_DIRECT flag allowed */ 437*69112eddSAli Bahrami #define FLG_OF1_ENCDIFF 0x0000800000 /* Host running linker has different */ 438f3324781Sab196087 /* byte order than output object */ 439*69112eddSAli Bahrami #define FLG_OF1_VADDR 0x0001000000 /* a segment defines explicit vaddr */ 440*69112eddSAli Bahrami #define FLG_OF1_EXTRACT 0x0002000000 /* archive member has been extracted */ 441*69112eddSAli Bahrami #define FLG_OF1_RESCAN 0x0004000000 /* any archives should be rescanned */ 442*69112eddSAli Bahrami #define FLG_OF1_IGNPRC 0x0008000000 /* ignore processing required */ 443*69112eddSAli Bahrami #define FLG_OF1_NCSTTAB 0x0010000000 /* -znocompstrtab set */ 444*69112eddSAli Bahrami #define FLG_OF1_DONE 0x0020000000 /* link-editor processing complete */ 445*69112eddSAli Bahrami #define FLG_OF1_NONREG 0x0040000000 /* non-regular file specified as */ 4467c478bd9Sstevel@tonic-gate /* the output file */ 447*69112eddSAli Bahrami #define FLG_OF1_ALNODIR 0x0080000000 /* establish NODIRECT for all */ 4487c478bd9Sstevel@tonic-gate /* exported interfaces. */ 449*69112eddSAli Bahrami #define FLG_OF1_OVHWCAP1 0x0100000000 /* override CA_SUNW_HW_1 capabilities */ 450*69112eddSAli Bahrami #define FLG_OF1_OVSFCAP1 0x0200000000 /* override CA_SUNW_SF_1 capabilities */ 451*69112eddSAli Bahrami #define FLG_OF1_OVHWCAP2 0x0400000000 /* override CA_SUNW_HW_2 capabilities */ 4527c478bd9Sstevel@tonic-gate 4537c478bd9Sstevel@tonic-gate /* 4549039eeafSab196087 * Test to see if the output file would allow the presence of 4559039eeafSab196087 * a .dynsym section. 4569039eeafSab196087 */ 457f3324781Sab196087 #define OFL_ALLOW_DYNSYM(_ofl) (((_ofl)->ofl_flags & \ 4589039eeafSab196087 (FLG_OF_DYNAMIC | FLG_OF_RELOBJ)) == FLG_OF_DYNAMIC) 4599039eeafSab196087 4609039eeafSab196087 /* 4619039eeafSab196087 * Test to see if the output file would allow the presence of 4629039eeafSab196087 * a .SUNW_ldynsym section. The requirements are that a .dynsym 4639039eeafSab196087 * is allowed, and -znoldynsym has not been specified. Note that 4649039eeafSab196087 * even if the answer is True (1), we will only generate one if there 4659039eeafSab196087 * are local symbols that require it. 4669039eeafSab196087 */ 467f3324781Sab196087 #define OFL_ALLOW_LDYNSYM(_ofl) (((_ofl)->ofl_flags & \ 4689039eeafSab196087 (FLG_OF_DYNAMIC | FLG_OF_RELOBJ | FLG_OF_NOLDYNSYM)) == FLG_OF_DYNAMIC) 4699039eeafSab196087 4709039eeafSab196087 /* 471f3324781Sab196087 * Test to see if relocation processing should be done. This is normally 472f3324781Sab196087 * true, but can be disabled via the '-z noreloc' option. Note that 473f3324781Sab196087 * relocatable objects are still relocated even if '-z noreloc' is present. 474f3324781Sab196087 */ 475f3324781Sab196087 #define OFL_DO_RELOC(_ofl) (((_ofl)->ofl_flags & FLG_OF_RELOBJ) || \ 476f3324781Sab196087 !((_ofl)->ofl_dtflags_1 & DF_1_NORELOC)) 477f3324781Sab196087 478f3324781Sab196087 /* 479635216b6SRod Evans * Determine whether a static executable is being built. 480635216b6SRod Evans */ 481635216b6SRod Evans #define OFL_IS_STATIC_EXEC(_ofl) (((_ofl)->ofl_flags & \ 482635216b6SRod Evans (FLG_OF_STATIC | FLG_OF_EXEC)) == (FLG_OF_STATIC | FLG_OF_EXEC)) 483635216b6SRod Evans 484635216b6SRod Evans /* 485635216b6SRod Evans * Determine whether a static object is being built. This macro is used 486635216b6SRod Evans * to select the appropriate string table, and symbol table that other 487635216b6SRod Evans * sections need to reference. 488635216b6SRod Evans */ 489635216b6SRod Evans #define OFL_IS_STATIC_OBJ(_ofl) ((_ofl)->ofl_flags & \ 490635216b6SRod Evans (FLG_OF_RELOBJ | FLG_OF_STATIC)) 491635216b6SRod Evans 492635216b6SRod Evans /* 493635216b6SRod Evans * Macros for counting symbol table entries. These are used to size symbol 494635216b6SRod Evans * tables and associated sections (.syminfo, SUNW_capinfo, .hash, etc.) and 495635216b6SRod Evans * set required sh_info entries (the offset to the first global symbol). 496635216b6SRod Evans */ 497635216b6SRod Evans #define SYMTAB_LOC_CNT(_ofl) /* local .symtab entries */ \ 498635216b6SRod Evans (2 + /* NULL and STT_FILE */ \ 499635216b6SRod Evans (_ofl)->ofl_shdrcnt + /* section symbol */ \ 500635216b6SRod Evans (_ofl)->ofl_scopecnt + /* scoped symbols */ \ 501635216b6SRod Evans (_ofl)->ofl_locscnt) /* standard locals */ 502635216b6SRod Evans #define SYMTAB_ALL_CNT(_ofl) /* all .symtab entries */ \ 503635216b6SRod Evans (SYMTAB_LOC_CNT(_ofl) + /* .symtab locals */ \ 504635216b6SRod Evans (_ofl)->ofl_globcnt) /* standard globals */ 505635216b6SRod Evans 506635216b6SRod Evans #define DYNSYM_LOC_CNT(_ofl) /* local .dynsym entries */ \ 507635216b6SRod Evans (1 + /* NULL */ \ 508635216b6SRod Evans (_ofl)->ofl_dynshdrcnt + /* section symbols */ \ 509635216b6SRod Evans (_ofl)->ofl_lregsymcnt) /* local register symbols */ 510635216b6SRod Evans #define DYNSYM_ALL_CNT(_ofl) /* all .dynsym entries */ \ 511635216b6SRod Evans (DYNSYM_LOC_CNT(_ofl) + /* .dynsym locals */ \ 512635216b6SRod Evans (_ofl)->ofl_globcnt) /* standard globals */ 513635216b6SRod Evans 514635216b6SRod Evans /* 51557ef7aa9SRod Evans * Define a move descriptor used within relocation structures. 51657ef7aa9SRod Evans */ 51757ef7aa9SRod Evans typedef struct { 51857ef7aa9SRod Evans Move *mr_move; 51957ef7aa9SRod Evans Sym_desc *mr_sym; 52057ef7aa9SRod Evans } Mv_reloc; 52157ef7aa9SRod Evans 52257ef7aa9SRod Evans /* 5237c478bd9Sstevel@tonic-gate * Relocation (active & output) processing structure - transparent to common 5247c478bd9Sstevel@tonic-gate * code. 525cce0e03bSab196087 * 526cce0e03bSab196087 * Note that rel_raddend is primarily only of interest to RELA relocations, 527cce0e03bSab196087 * and is set to 0 for REL. However, there is an exception: If FLG_REL_NADDEND 528cce0e03bSab196087 * is set, then rel_raddend contains a replacement value for the implicit 529cce0e03bSab196087 * addend found in the relocation target. 5307c478bd9Sstevel@tonic-gate */ 5317c478bd9Sstevel@tonic-gate struct rel_desc { 5327c478bd9Sstevel@tonic-gate Os_desc *rel_osdesc; /* output section reloc is against */ 5337c478bd9Sstevel@tonic-gate Is_desc *rel_isdesc; /* input section reloc is against */ 5347c478bd9Sstevel@tonic-gate const char *rel_sname; /* symbol name (may be "unknown") */ 5357c478bd9Sstevel@tonic-gate Sym_desc *rel_sym; /* sym relocation is against */ 5367c478bd9Sstevel@tonic-gate Sym_desc *rel_usym; /* strong sym if this is a weak pair */ 53757ef7aa9SRod Evans Mv_reloc *rel_move; /* move table information */ 5387c478bd9Sstevel@tonic-gate Word rel_flags; /* misc. flags for relocations */ 5397c478bd9Sstevel@tonic-gate Word rel_rtype; /* relocation type */ 5407c478bd9Sstevel@tonic-gate Xword rel_roffset; /* relocation offset */ 5417c478bd9Sstevel@tonic-gate Sxword rel_raddend; /* addend from input relocation */ 5427c478bd9Sstevel@tonic-gate Word rel_typedata; /* ELF_R_TYPE_DATA(info) */ 5437c478bd9Sstevel@tonic-gate }; 5447c478bd9Sstevel@tonic-gate 5457c478bd9Sstevel@tonic-gate /* 5467c478bd9Sstevel@tonic-gate * common flags used on the Rel_desc structure (defined in machrel.h). 5477c478bd9Sstevel@tonic-gate */ 5487c478bd9Sstevel@tonic-gate #define FLG_REL_GOT 0x00000001 /* relocation against GOT */ 5497c478bd9Sstevel@tonic-gate #define FLG_REL_PLT 0x00000002 /* relocation against PLT */ 5507c478bd9Sstevel@tonic-gate #define FLG_REL_BSS 0x00000004 /* relocation against BSS */ 5517c478bd9Sstevel@tonic-gate #define FLG_REL_LOAD 0x00000008 /* section loadable */ 5527c478bd9Sstevel@tonic-gate #define FLG_REL_SCNNDX 0x00000010 /* use section index for symbol ndx */ 5537c478bd9Sstevel@tonic-gate #define FLG_REL_CLVAL 0x00000020 /* clear VALUE for active relocation */ 5547c478bd9Sstevel@tonic-gate #define FLG_REL_ADVAL 0x00000040 /* add VALUE for output relocation, */ 55563360950Smp204432 /* only relevant to SPARC and */ 5567c478bd9Sstevel@tonic-gate /* R_SPARC_RELATIVE */ 5577c478bd9Sstevel@tonic-gate #define FLG_REL_GOTCL 0x00000080 /* clear the GOT entry. This is */ 5587c478bd9Sstevel@tonic-gate /* relevant to RELA relocations, */ 5597c478bd9Sstevel@tonic-gate /* not REL (i386) relocations */ 5607c478bd9Sstevel@tonic-gate #define FLG_REL_MOVETAB 0x00000100 /* Relocation against .SUNW_move */ 5617c478bd9Sstevel@tonic-gate /* adjustments required before */ 5627c478bd9Sstevel@tonic-gate /* actual relocation */ 5637c478bd9Sstevel@tonic-gate #define FLG_REL_NOINFO 0x00000200 /* Relocation comes from a section */ 5647c478bd9Sstevel@tonic-gate /* with a null sh_info field */ 5657c478bd9Sstevel@tonic-gate #define FLG_REL_REG 0x00000400 /* Relocation target is reg sym */ 5667c478bd9Sstevel@tonic-gate #define FLG_REL_FPTR 0x00000800 /* relocation against func. desc. */ 5677c478bd9Sstevel@tonic-gate #define FLG_REL_RFPTR1 0x00001000 /* Relative relocation against */ 5687c478bd9Sstevel@tonic-gate /* 1st part of FD */ 5697c478bd9Sstevel@tonic-gate #define FLG_REL_RFPTR2 0x00002000 /* Relative relocation against */ 5707c478bd9Sstevel@tonic-gate /* 2nd part of FD */ 5717c478bd9Sstevel@tonic-gate #define FLG_REL_DISP 0x00004000 /* *disp* relocation */ 5727c478bd9Sstevel@tonic-gate #define FLG_REL_STLS 0x00008000 /* IE TLS reference to */ 5737c478bd9Sstevel@tonic-gate /* static TLS GOT index */ 5747c478bd9Sstevel@tonic-gate #define FLG_REL_DTLS 0x00010000 /* GD TLS reference relative to */ 5757c478bd9Sstevel@tonic-gate /* dynamic TLS GOT index */ 5767c478bd9Sstevel@tonic-gate #define FLG_REL_MTLS 0x00020000 /* LD TLS reference against GOT */ 5777c478bd9Sstevel@tonic-gate #define FLG_REL_STTLS 0x00040000 /* LE TLS reference directly */ 5787c478bd9Sstevel@tonic-gate /* to static tls index */ 5797c478bd9Sstevel@tonic-gate #define FLG_REL_TLSFIX 0x00080000 /* relocation points to TLS instr. */ 5807c478bd9Sstevel@tonic-gate /* which needs updating */ 58157ef7aa9SRod Evans #define FLG_REL_RELA 0x00100000 /* descriptor captures a Rela */ 5827c478bd9Sstevel@tonic-gate #define FLG_REL_GOTFIX 0x00200000 /* relocation points to GOTOP instr. */ 5837c478bd9Sstevel@tonic-gate /* which needs updating */ 584cce0e03bSab196087 #define FLG_REL_NADDEND 0x00400000 /* Replace implicit addend in dest */ 585cce0e03bSab196087 /* with value in rel_raddend */ 586cce0e03bSab196087 /* Relevant to REL (i386) */ 587cce0e03bSab196087 /* relocations, not to RELA. */ 5887c478bd9Sstevel@tonic-gate 5897c478bd9Sstevel@tonic-gate /* 5907c478bd9Sstevel@tonic-gate * Structure to hold a cache of Relocations. 5917c478bd9Sstevel@tonic-gate */ 5927c478bd9Sstevel@tonic-gate struct rel_cache { 5937c478bd9Sstevel@tonic-gate Rel_desc *rc_end; 5947c478bd9Sstevel@tonic-gate Rel_desc *rc_free; 5957c478bd9Sstevel@tonic-gate }; 5967c478bd9Sstevel@tonic-gate 5977c478bd9Sstevel@tonic-gate /* 5987c478bd9Sstevel@tonic-gate * Symbol value descriptor. For relocatable objects, each symbols value is 5997c478bd9Sstevel@tonic-gate * its offset within its associated section. Therefore, to uniquely define 6007c478bd9Sstevel@tonic-gate * each symbol within a reloctable object, record and sort the sh_offset and 6017c478bd9Sstevel@tonic-gate * symbol value. This information is used to seach for displacement 6027c478bd9Sstevel@tonic-gate * relocations as part of copy relocation validation. 6037c478bd9Sstevel@tonic-gate */ 6047c478bd9Sstevel@tonic-gate typedef struct { 6057c478bd9Sstevel@tonic-gate Addr ssv_value; 6067c478bd9Sstevel@tonic-gate Sym_desc *ssv_sdp; 6077c478bd9Sstevel@tonic-gate } Ssv_desc; 6087c478bd9Sstevel@tonic-gate 6097c478bd9Sstevel@tonic-gate /* 6107c478bd9Sstevel@tonic-gate * Input file processing structures. 6117c478bd9Sstevel@tonic-gate */ 6127c478bd9Sstevel@tonic-gate struct ifl_desc { /* input file descriptor */ 6137c478bd9Sstevel@tonic-gate const char *ifl_name; /* full file name */ 6147c478bd9Sstevel@tonic-gate const char *ifl_soname; /* shared object name */ 6157c478bd9Sstevel@tonic-gate dev_t ifl_stdev; /* device id and inode number for .so */ 6167c478bd9Sstevel@tonic-gate ino_t ifl_stino; /* multiple inclusion checks */ 6177c478bd9Sstevel@tonic-gate Ehdr *ifl_ehdr; /* elf header describing this file */ 6187c478bd9Sstevel@tonic-gate Elf *ifl_elf; /* elf descriptor for this file */ 6197c478bd9Sstevel@tonic-gate Sym_desc **ifl_oldndx; /* original symbol table indices */ 6207c478bd9Sstevel@tonic-gate Sym_desc *ifl_locs; /* symbol desc version of locals */ 6217c478bd9Sstevel@tonic-gate Ssv_desc *ifl_sortsyms; /* sorted list of symbols by value */ 6227c478bd9Sstevel@tonic-gate Word ifl_locscnt; /* no. of local symbols to process */ 6237c478bd9Sstevel@tonic-gate Word ifl_symscnt; /* total no. of symbols to process */ 6247c478bd9Sstevel@tonic-gate Word ifl_sortcnt; /* no. of sorted symbols to process */ 6257c478bd9Sstevel@tonic-gate Word ifl_shnum; /* number of sections in file */ 6267c478bd9Sstevel@tonic-gate Word ifl_shstrndx; /* index to .shstrtab */ 6277c478bd9Sstevel@tonic-gate Word ifl_vercnt; /* number of versions in file */ 62857ef7aa9SRod Evans Half ifl_neededndx; /* index to NEEDED in .dyn section */ 62928bda19cSRod Evans Word ifl_flags; /* explicit/implicit reference */ 6307c478bd9Sstevel@tonic-gate Is_desc **ifl_isdesc; /* isdesc[scn ndx] = Is_desc ptr */ 6317c478bd9Sstevel@tonic-gate Sdf_desc *ifl_sdfdesc; /* control definition */ 6327c478bd9Sstevel@tonic-gate Versym *ifl_versym; /* version symbol table array */ 6337c478bd9Sstevel@tonic-gate Ver_index *ifl_verndx; /* verndx[ver ndx] = Ver_index */ 63457ef7aa9SRod Evans APlist *ifl_verdesc; /* version descriptor list */ 63557ef7aa9SRod Evans APlist *ifl_relsect; /* relocation section list */ 636cc7efc4fSrie Alist *ifl_groups; /* SHT_GROUP section list */ 6377c478bd9Sstevel@tonic-gate }; 6387c478bd9Sstevel@tonic-gate 639d840867fSab196087 #define FLG_IF_CMDLINE 0x00000001 /* full filename specified from the */ 6407c478bd9Sstevel@tonic-gate /* command line (no -l) */ 641d840867fSab196087 #define FLG_IF_NEEDED 0x00000002 /* shared object should be recorded */ 642d840867fSab196087 #define FLG_IF_DIRECT 0x00000004 /* establish direct bindings to this */ 6437c478bd9Sstevel@tonic-gate /* object */ 644d840867fSab196087 #define FLG_IF_EXTRACT 0x00000008 /* file extracted from an archive */ 645d840867fSab196087 #define FLG_IF_VERNEED 0x00000010 /* version dependency information is */ 6467c478bd9Sstevel@tonic-gate /* required */ 647d840867fSab196087 #define FLG_IF_DEPREQD 0x00000020 /* dependency is required to satisfy */ 6487c478bd9Sstevel@tonic-gate /* symbol references */ 649d840867fSab196087 #define FLG_IF_NEEDSTR 0x00000040 /* dependency specified by -Nn */ 6507c478bd9Sstevel@tonic-gate /* flag */ 651d840867fSab196087 #define FLG_IF_IGNORE 0x00000080 /* ignore unused dependencies */ 652d840867fSab196087 #define FLG_IF_NODIRECT 0x00000100 /* object contains symbols that */ 653635216b6SRod Evans /* cannot be directly bound to */ 654d840867fSab196087 #define FLG_IF_LAZYLD 0x00000200 /* bindings to this object should be */ 6557c478bd9Sstevel@tonic-gate /* lazy loaded */ 656d840867fSab196087 #define FLG_IF_GRPPRM 0x00000400 /* this dependency should have the */ 6577c478bd9Sstevel@tonic-gate /* DF_P1_GROUPPERM flag set */ 658d840867fSab196087 #define FLG_IF_DISPPEND 0x00000800 /* displacement relocation done */ 6597c478bd9Sstevel@tonic-gate /* in the ld time. */ 660d840867fSab196087 #define FLG_IF_DISPDONE 0x00001000 /* displacement relocation done */ 6617c478bd9Sstevel@tonic-gate /* at the run time */ 662d840867fSab196087 #define FLG_IF_MAPFILE 0x00002000 /* file is a mapfile */ 663d840867fSab196087 #define FLG_IF_HSTRTAB 0x00004000 /* file has a string section */ 664d840867fSab196087 #define FLG_IF_FILEREF 0x00008000 /* file contains a section which */ 6657c478bd9Sstevel@tonic-gate /* is included in the output */ 6667c478bd9Sstevel@tonic-gate /* allocatable image */ 667d840867fSab196087 #define FLG_IF_GNUVER 0x00010000 /* file used GNU-style versioning */ 6680e233487SRod Evans #define FLG_IF_ORDERED 0x00020000 /* ordered section processing */ 6690e233487SRod Evans /* required */ 6707c478bd9Sstevel@tonic-gate 6717c478bd9Sstevel@tonic-gate struct is_desc { /* input section descriptor */ 6720e233487SRod Evans const char *is_name; /* original section name */ 6737c478bd9Sstevel@tonic-gate Shdr *is_shdr; /* the elf section header */ 6747c478bd9Sstevel@tonic-gate Ifl_desc *is_file; /* infile desc for this section */ 6757c478bd9Sstevel@tonic-gate Os_desc *is_osdesc; /* new output section for this */ 6767c478bd9Sstevel@tonic-gate /* input section */ 6777c478bd9Sstevel@tonic-gate Elf_Data *is_indata; /* input sections raw data */ 6787c478bd9Sstevel@tonic-gate Is_desc *is_symshndx; /* related SHT_SYM_SHNDX section */ 6796b3ba5bdSAli Bahrami Is_desc *is_comdatkeep; /* If COMDAT section is discarded, */ 6806b3ba5bdSAli Bahrami /* this is section that was kept */ 6817c478bd9Sstevel@tonic-gate Word is_scnndx; /* original section index in file */ 68257ef7aa9SRod Evans Word is_ordndx; /* Index for section. Used to decide */ 6837c478bd9Sstevel@tonic-gate /* where to insert section when */ 6847c478bd9Sstevel@tonic-gate /* reordering sections */ 6851dd9d86fSAli Bahrami Word is_keyident; /* key for SHF_{ORDERED|LINK_ORDER} */ 6861dd9d86fSAli Bahrami /* processing and ident used for */ 6870e233487SRod Evans /* placing/ordering sections */ 6880e233487SRod Evans Word is_flags; /* Various flags */ 6897c478bd9Sstevel@tonic-gate }; 6907c478bd9Sstevel@tonic-gate 6910e233487SRod Evans #define FLG_IS_ORDERED 0x0001 /* this is a SHF_ORDERED section */ 6920e233487SRod Evans #define FLG_IS_KEY 0x0002 /* section requires sort keys */ 6937c478bd9Sstevel@tonic-gate #define FLG_IS_DISCARD 0x0004 /* section is to be discarded */ 6947c478bd9Sstevel@tonic-gate #define FLG_IS_RELUPD 0x0008 /* symbol defined here may have moved */ 6957c478bd9Sstevel@tonic-gate #define FLG_IS_SECTREF 0x0010 /* section has been referenced */ 6967c478bd9Sstevel@tonic-gate #define FLG_IS_GDATADEF 0x0020 /* section contains global data sym */ 697*69112eddSAli Bahrami #define FLG_IS_EXTERNAL 0x0040 /* isp from a user file */ 698cce0e03bSab196087 #define FLG_IS_INSTRMRG 0x0080 /* Usable SHF_MERGE|SHF_STRINGS sec */ 699cce0e03bSab196087 #define FLG_IS_GNSTRMRG 0x0100 /* Generated mergeable string section */ 7000e233487SRod Evans #define FLG_IS_GROUPS 0x0200 /* section has groups to process */ 7010e233487SRod Evans #define FLG_IS_PLACE 0x0400 /* section requires to be placed */ 7020e233487SRod Evans #define FLG_IS_COMDAT 0x0800 /* section is COMDAT */ 7037e16fca0SAli Bahrami #define FLG_IS_EHFRAME 0x1000 /* section is .eh_frame */ 7047c478bd9Sstevel@tonic-gate 7057c478bd9Sstevel@tonic-gate /* 7061dd9d86fSAli Bahrami * Output sections contain lists of input sections that are assigned to them. 7071dd9d86fSAli Bahrami * These items fall into 4 categories: 7081dd9d86fSAli Bahrami * BEFORE - Ordered sections that specify SHN_BEFORE, in input order. 7091dd9d86fSAli Bahrami * ORDERED - Ordered sections that are sorted using unsorted sections 7101dd9d86fSAli Bahrami * as the sort key. 7111dd9d86fSAli Bahrami * DEFAULT - Sections that are placed into the output section 7121dd9d86fSAli Bahrami * in input order. 7131dd9d86fSAli Bahrami * AFTER - Ordered sections that specify SHN_AFTER, in input order. 7141dd9d86fSAli Bahrami */ 7151dd9d86fSAli Bahrami #define OS_ISD_BEFORE 0 7161dd9d86fSAli Bahrami #define OS_ISD_ORDERED 1 7171dd9d86fSAli Bahrami #define OS_ISD_DEFAULT 2 7181dd9d86fSAli Bahrami #define OS_ISD_AFTER 3 7191dd9d86fSAli Bahrami #define OS_ISD_NUM 4 7201dd9d86fSAli Bahrami typedef APlist *os_isdecs_arr[OS_ISD_NUM]; 7211dd9d86fSAli Bahrami 7221dd9d86fSAli Bahrami /* 7231dd9d86fSAli Bahrami * Convenience macro for traversing every input section associated 7241dd9d86fSAli Bahrami * with a given output section. The primary benefit of this macro 7251dd9d86fSAli Bahrami * is that it preserves a precious level of code indentation in the 7261dd9d86fSAli Bahrami * code that uses it. 7271dd9d86fSAli Bahrami */ 7281dd9d86fSAli Bahrami #define OS_ISDESCS_TRAVERSE(_list_idx, _osp, _idx, _isp) \ 7291dd9d86fSAli Bahrami for (_list_idx = 0; _list_idx < OS_ISD_NUM; _list_idx++) \ 7301dd9d86fSAli Bahrami for (APLIST_TRAVERSE(_osp->os_isdescs[_list_idx], _idx, _isp)) 7311dd9d86fSAli Bahrami 7321dd9d86fSAli Bahrami 7331dd9d86fSAli Bahrami /* 7347c478bd9Sstevel@tonic-gate * Map file and output file processing structures 7357c478bd9Sstevel@tonic-gate */ 7367c478bd9Sstevel@tonic-gate struct os_desc { /* Output section descriptor */ 7377c478bd9Sstevel@tonic-gate const char *os_name; /* the section name */ 7387c478bd9Sstevel@tonic-gate Elf_Scn *os_scn; /* the elf section descriptor */ 7397c478bd9Sstevel@tonic-gate Shdr *os_shdr; /* the elf section header */ 7407c478bd9Sstevel@tonic-gate Os_desc *os_relosdesc; /* the output relocation section */ 7416b3ba5bdSAli Bahrami APlist *os_relisdescs; /* reloc input section descriptors */ 7427c478bd9Sstevel@tonic-gate /* for this output section */ 7431dd9d86fSAli Bahrami os_isdecs_arr os_isdescs; /* lists of input sections in output */ 744cce0e03bSab196087 APlist *os_mstrisdescs; /* FLG_IS_INSTRMRG input sections */ 7457c478bd9Sstevel@tonic-gate Sg_desc *os_sgdesc; /* segment os_desc is placed on */ 7467c478bd9Sstevel@tonic-gate Elf_Data *os_outdata; /* output sections raw data */ 7476b3ba5bdSAli Bahrami avl_tree_t *os_comdats; /* AVL tree of COMDAT input sections */ 7486b3ba5bdSAli Bahrami /* associated to output section */ 74957ef7aa9SRod Evans Word os_identndx; /* section identifier for input */ 75057ef7aa9SRod Evans /* section processing, followed */ 75157ef7aa9SRod Evans /* by section symbol index */ 75257ef7aa9SRod Evans Word os_ordndx; /* index for section. Used to decide */ 7537c478bd9Sstevel@tonic-gate /* where to insert section when */ 7547c478bd9Sstevel@tonic-gate /* reordering sections */ 7557c478bd9Sstevel@tonic-gate Xword os_szoutrels; /* size of output relocation section */ 7567c478bd9Sstevel@tonic-gate uint_t os_namehash; /* hash on section name */ 7577c478bd9Sstevel@tonic-gate uchar_t os_flags; /* various flags */ 7587c478bd9Sstevel@tonic-gate }; 7597c478bd9Sstevel@tonic-gate 7600e233487SRod Evans #define FLG_OS_KEY 0x01 /* section requires sort keys */ 7617c478bd9Sstevel@tonic-gate #define FLG_OS_OUTREL 0x02 /* output rel against this section */ 762dd94ecefSrie #define FLG_OS_SECTREF 0x04 /* isps are not affected by -zignore */ 7637c478bd9Sstevel@tonic-gate 7647c478bd9Sstevel@tonic-gate /* 765*69112eddSAli Bahrami * The sg_id field of the segment descriptor is used to establish the default 766*69112eddSAli Bahrami * order for program headers and segments in the output object. Segments are 767*69112eddSAli Bahrami * ordered according to the following SGID values that classify them based on 768*69112eddSAli Bahrami * their attributes. The initial set of built in segments are in this order, 769*69112eddSAli Bahrami * and new mapfile defined segments are inserted into these groups. Within a 770*69112eddSAli Bahrami * given SGID group, the position of new segments depends on the syntax 771*69112eddSAli Bahrami * version of the mapfile that creates them. Version 1 (original sysv) 772*69112eddSAli Bahrami * mapfiles place the new segment at the head of their group (reverse creation 773*69112eddSAli Bahrami * order). The newer syntax places them at the end, following the others 774*69112eddSAli Bahrami * (creation order). 775*69112eddSAli Bahrami * 776*69112eddSAli Bahrami * Note that any new segments must always be added after PT_PHDR and 777*69112eddSAli Bahrami * PT_INTERP (refer Generic ABI, Page 5-4). 77857ef7aa9SRod Evans */ 779*69112eddSAli Bahrami #define SGID_PHDR 0 /* PT_PHDR */ 780*69112eddSAli Bahrami #define SGID_INTERP 1 /* PT_INTERP */ 781*69112eddSAli Bahrami #define SGID_SUNWCAP 2 /* PT_SUNWCAP */ 782*69112eddSAli Bahrami #define SGID_TEXT 3 /* PT_LOAD */ 783*69112eddSAli Bahrami #define SGID_DATA 4 /* PT_LOAD */ 784*69112eddSAli Bahrami #define SGID_BSS 5 /* PT_LOAD */ 78557ef7aa9SRod Evans #if defined(_ELF64) 786*69112eddSAli Bahrami #define SGID_LRODATA 6 /* PT_LOAD (amd64-only) */ 787*69112eddSAli Bahrami #define SGID_LDATA 7 /* PT_LOAD (amd64-only) */ 78857ef7aa9SRod Evans #endif 789*69112eddSAli Bahrami #define SGID_TEXT_EMPTY 8 /* PT_LOAD, reserved (?E in version 1 syntax) */ 790*69112eddSAli Bahrami #define SGID_NULL_EMPTY 9 /* PT_NULL, reserved (?E in version 1 syntax) */ 791*69112eddSAli Bahrami #define SGID_DYN 10 /* PT_DYNAMIC */ 792*69112eddSAli Bahrami #define SGID_DTRACE 11 /* PT_SUNWDTRACE */ 793*69112eddSAli Bahrami #define SGID_TLS 12 /* PT_TLS */ 794*69112eddSAli Bahrami #define SGID_UNWIND 13 /* PT_SUNW_UNWIND */ 795*69112eddSAli Bahrami #define SGID_SUNWSTACK 14 /* PT_SUNWSTACK */ 796*69112eddSAli Bahrami #define SGID_NOTE 15 /* PT_NOTE */ 797*69112eddSAli Bahrami #define SGID_NULL 16 /* PT_NULL, mapfile defined empty phdr slots */ 798*69112eddSAli Bahrami /* for use by post processors */ 799*69112eddSAli Bahrami #define SGID_EXTRA 17 /* PT_NULL (final catchall) */ 80057ef7aa9SRod Evans 801*69112eddSAli Bahrami typedef Half sg_flags_t; 8027c478bd9Sstevel@tonic-gate struct sg_desc { /* output segment descriptor */ 803*69112eddSAli Bahrami Word sg_id; /* segment identifier (for sorting) */ 8047c478bd9Sstevel@tonic-gate Phdr sg_phdr; /* segment header for output file */ 805*69112eddSAli Bahrami const char *sg_name; /* segment name for PT_LOAD, PT_NOTE, */ 806*69112eddSAli Bahrami /* and PT_NULL, otherwise NULL */ 8077c478bd9Sstevel@tonic-gate Xword sg_round; /* data rounding required (mapfile) */ 8087c478bd9Sstevel@tonic-gate Xword sg_length; /* maximum segment length; if 0 */ 8097c478bd9Sstevel@tonic-gate /* segment is not specified */ 810cce0e03bSab196087 APlist *sg_osdescs; /* list of output section descriptors */ 811*69112eddSAli Bahrami APlist *sg_is_order; /* list of entry criteria */ 812*69112eddSAli Bahrami /* giving input section order */ 813*69112eddSAli Bahrami Alist *sg_os_order; /* list specifying output section */ 814*69112eddSAli Bahrami /* ordering for the segment */ 815*69112eddSAli Bahrami sg_flags_t sg_flags; 816*69112eddSAli Bahrami APlist *sg_sizesym; /* size symbols for this segment */ 817*69112eddSAli Bahrami Xword sg_align; /* LCM of sh_addralign */ 8187c478bd9Sstevel@tonic-gate Elf_Scn *sg_fscn; /* the SCN of the first section. */ 819*69112eddSAli Bahrami avl_node_t sg_avlnode; /* AVL book-keeping */ 8207c478bd9Sstevel@tonic-gate }; 8217c478bd9Sstevel@tonic-gate 822*69112eddSAli Bahrami #define FLG_SG_P_VADDR 0x0001 /* p_vaddr segment attribute set */ 823*69112eddSAli Bahrami #define FLG_SG_P_PADDR 0x0002 /* p_paddr segment attribute set */ 8247c478bd9Sstevel@tonic-gate #define FLG_SG_LENGTH 0x0004 /* length segment attribute set */ 825*69112eddSAli Bahrami #define FLG_SG_P_ALIGN 0x0008 /* p_align segment attribute set */ 8267c478bd9Sstevel@tonic-gate #define FLG_SG_ROUND 0x0010 /* round segment attribute set */ 827*69112eddSAli Bahrami #define FLG_SG_P_FLAGS 0x0020 /* p_flags segment attribute set */ 828*69112eddSAli Bahrami #define FLG_SG_P_TYPE 0x0040 /* p_type segment attribute set */ 829*69112eddSAli Bahrami #define FLG_SG_IS_ORDER 0x0080 /* input section ordering is required */ 830*69112eddSAli Bahrami /* for this segment. */ 8317c478bd9Sstevel@tonic-gate #define FLG_SG_NOHDR 0x0100 /* don't map ELF or phdrs into */ 8327c478bd9Sstevel@tonic-gate /* this segment */ 8337c478bd9Sstevel@tonic-gate #define FLG_SG_EMPTY 0x0200 /* an empty segment specification */ 8347c478bd9Sstevel@tonic-gate /* no input sections will be */ 8357c478bd9Sstevel@tonic-gate /* associated to this section */ 8360e233487SRod Evans #define FLG_SG_KEY 0x0400 /* segment requires sort keys */ 837*69112eddSAli Bahrami #define FLG_SG_NODISABLE 0x0800 /* FLG_SG_DISABLED is not allowed on */ 838*69112eddSAli Bahrami /* this segment */ 839*69112eddSAli Bahrami #define FLG_SG_DISABLED 0x1000 /* this segment is disabled */ 840*69112eddSAli Bahrami #define FLG_SG_PHREQ 0x2000 /* this segment requires a program */ 84154d82594Sseizo /* header */ 842*69112eddSAli Bahrami #define FLG_SG_ORDERED 0x4000 /* SEGMENT_ORDER segment */ 8437c478bd9Sstevel@tonic-gate 8447c478bd9Sstevel@tonic-gate struct sec_order { 8457c478bd9Sstevel@tonic-gate const char *sco_secname; /* section name to be ordered */ 8467c478bd9Sstevel@tonic-gate Half sco_flags; 8477c478bd9Sstevel@tonic-gate }; 8487c478bd9Sstevel@tonic-gate 8497c478bd9Sstevel@tonic-gate #define FLG_SGO_USED 0x0001 /* was ordering used? */ 8507c478bd9Sstevel@tonic-gate 851*69112eddSAli Bahrami typedef Half ec_flags_t; 8527c478bd9Sstevel@tonic-gate struct ent_desc { /* input section entrance criteria */ 853*69112eddSAli Bahrami const char *ec_name; /* entrace criteria name, or NULL */ 854*69112eddSAli Bahrami Alist *ec_files; /* files from which to accept */ 8557c478bd9Sstevel@tonic-gate /* sections */ 856*69112eddSAli Bahrami const char *ec_is_name; /* input section name to match */ 857*69112eddSAli Bahrami /* (NULL if none) */ 8587c478bd9Sstevel@tonic-gate Word ec_type; /* section type */ 85954d82594Sseizo Word ec_attrmask; /* section attribute mask (AWX) */ 86054d82594Sseizo Word ec_attrbits; /* sections attribute bits */ 8617c478bd9Sstevel@tonic-gate Sg_desc *ec_segment; /* output segment to enter if matched */ 86257ef7aa9SRod Evans Word ec_ordndx; /* index to determine where section */ 8637c478bd9Sstevel@tonic-gate /* meeting this criteria should */ 8647c478bd9Sstevel@tonic-gate /* inserted. Used for reordering */ 8657c478bd9Sstevel@tonic-gate /* of sections. */ 866*69112eddSAli Bahrami ec_flags_t ec_flags; 867*69112eddSAli Bahrami avl_node_t ec_avlnode; /* AVL book-keeping */ 8687c478bd9Sstevel@tonic-gate }; 8697c478bd9Sstevel@tonic-gate 870e23c41c9SAli Bahrami #define FLG_EC_BUILTIN 0x0001 /* built in descriptor */ 871e23c41c9SAli Bahrami #define FLG_EC_USED 0x0002 /* entrance criteria met? */ 872*69112eddSAli Bahrami #define FLG_EC_CATCHALL 0x0004 /* Catches any section */ 873*69112eddSAli Bahrami 874*69112eddSAli Bahrami /* 875*69112eddSAli Bahrami * Ent_desc_file is the type of element maintained in the ec_files Alist 876*69112eddSAli Bahrami * of an entrance criteria descriptor. Each item maintains one file 877*69112eddSAli Bahrami * path, and a set of flags that specify the type of comparison it implies, 878*69112eddSAli Bahrami * and other information about it. The comparison type is maintained in 879*69112eddSAli Bahrami * the bottom byte of the flags. 880*69112eddSAli Bahrami */ 881*69112eddSAli Bahrami #define TYP_ECF_MASK 0x00ff /* Comparison type mask */ 882*69112eddSAli Bahrami #define TYP_ECF_PATH 0 /* Compare to file path */ 883*69112eddSAli Bahrami #define TYP_ECF_BASENAME 1 /* Compare to file basename */ 884*69112eddSAli Bahrami #define TYP_ECF_OBJNAME 2 /* Compare to regular file basename, */ 885*69112eddSAli Bahrami /* or to archive member name */ 886*69112eddSAli Bahrami #define TYP_ECF_NUM 3 887*69112eddSAli Bahrami 888*69112eddSAli Bahrami #define FLG_ECF_ARMEMBER 0x0100 /* name includes archive member */ 889*69112eddSAli Bahrami 890*69112eddSAli Bahrami typedef struct { 891*69112eddSAli Bahrami Word edf_flags; /* Type of comparison */ 892*69112eddSAli Bahrami const char *edf_name; /* String to compare to */ 893*69112eddSAli Bahrami size_t edf_name_len; /* strlen(edf_name) */ 894*69112eddSAli Bahrami } Ent_desc_file; 8957c478bd9Sstevel@tonic-gate 8967c478bd9Sstevel@tonic-gate /* 89757ef7aa9SRod Evans * One structure is allocated for a move entry, and associated to the symbol 89857ef7aa9SRod Evans * against which a move is targeted. 8997c478bd9Sstevel@tonic-gate */ 90057ef7aa9SRod Evans typedef struct { 90157ef7aa9SRod Evans Move *md_move; /* original Move entry */ 90257ef7aa9SRod Evans Xword md_start; /* start position */ 90357ef7aa9SRod Evans Xword md_len; /* length of initialization */ 90457ef7aa9SRod Evans Word md_oidx; /* output Move entry index */ 90557ef7aa9SRod Evans } Mv_desc; 9067c478bd9Sstevel@tonic-gate 9077c478bd9Sstevel@tonic-gate /* 90857ef7aa9SRod Evans * Symbol descriptor. 9097c478bd9Sstevel@tonic-gate */ 910635216b6SRod Evans typedef Lword sd_flag_t; 9117c478bd9Sstevel@tonic-gate struct sym_desc { 91257ef7aa9SRod Evans Alist *sd_GOTndxs; /* list of associated GOT entries */ 9137c478bd9Sstevel@tonic-gate Sym *sd_sym; /* pointer to symbol table entry */ 9147c478bd9Sstevel@tonic-gate Sym *sd_osym; /* copy of the original symbol entry */ 915d326b23bSrie /* used only for local partial */ 91657ef7aa9SRod Evans Alist *sd_move; /* move information associated with a */ 91757ef7aa9SRod Evans /* partially initialized symbol */ 9187c478bd9Sstevel@tonic-gate const char *sd_name; /* symbols name */ 9197c478bd9Sstevel@tonic-gate Ifl_desc *sd_file; /* file where symbol is taken */ 9207c478bd9Sstevel@tonic-gate Is_desc *sd_isc; /* input section of symbol definition */ 9217c478bd9Sstevel@tonic-gate Sym_aux *sd_aux; /* auxiliary global symbol info. */ 9227c478bd9Sstevel@tonic-gate Word sd_symndx; /* index in output symbol table */ 9237c478bd9Sstevel@tonic-gate Word sd_shndx; /* sect. index sym is associated w/ */ 924635216b6SRod Evans sd_flag_t sd_flags; /* state flags */ 9257c478bd9Sstevel@tonic-gate Half sd_ref; /* reference definition of symbol */ 9267c478bd9Sstevel@tonic-gate }; 9277c478bd9Sstevel@tonic-gate 9287c478bd9Sstevel@tonic-gate /* 9297c478bd9Sstevel@tonic-gate * The auxiliary symbol descriptor contains the additional information (beyond 9307c478bd9Sstevel@tonic-gate * the symbol descriptor) required to process global symbols. These symbols are 9317c478bd9Sstevel@tonic-gate * accessed via an internal symbol hash table where locality of reference is 9327c478bd9Sstevel@tonic-gate * important for performance. 9337c478bd9Sstevel@tonic-gate */ 9347c478bd9Sstevel@tonic-gate struct sym_aux { 93557ef7aa9SRod Evans APlist *sa_dfiles; /* files where symbol is defined */ 9367c478bd9Sstevel@tonic-gate Sym sa_sym; /* copy of symtab entry */ 9377c478bd9Sstevel@tonic-gate const char *sa_vfile; /* first unavailable definition */ 9387c478bd9Sstevel@tonic-gate const char *sa_rfile; /* file with first symbol referenced */ 9397c478bd9Sstevel@tonic-gate Word sa_hash; /* the pure hash value of symbol */ 9407c478bd9Sstevel@tonic-gate Word sa_PLTndx; /* index into PLT for symbol */ 9417c478bd9Sstevel@tonic-gate Word sa_PLTGOTndx; /* GOT entry indx for PLT indirection */ 942d579eb63Sab196087 Word sa_linkndx; /* index of associated symbol from */ 943d579eb63Sab196087 /* ET_DYN file */ 9447c478bd9Sstevel@tonic-gate Half sa_symspec; /* special symbol ids */ 9457c478bd9Sstevel@tonic-gate Half sa_overndx; /* output file versioning index */ 9467c478bd9Sstevel@tonic-gate Half sa_dverndx; /* dependency versioning index */ 9477c478bd9Sstevel@tonic-gate }; 9487c478bd9Sstevel@tonic-gate 9497c478bd9Sstevel@tonic-gate /* 9507c478bd9Sstevel@tonic-gate * Nodes used to track symbols in the global AVL symbol dictionary. 9517c478bd9Sstevel@tonic-gate */ 9527c478bd9Sstevel@tonic-gate struct sym_avlnode { 9537c478bd9Sstevel@tonic-gate avl_node_t sav_node; /* AVL node */ 9547c478bd9Sstevel@tonic-gate Word sav_hash; /* symbol hash value */ 9557c478bd9Sstevel@tonic-gate const char *sav_name; /* symbol name */ 956635216b6SRod Evans Sym_desc *sav_sdp; /* symbol descriptor */ 9577c478bd9Sstevel@tonic-gate }; 9587c478bd9Sstevel@tonic-gate 9597c478bd9Sstevel@tonic-gate /* 9607c478bd9Sstevel@tonic-gate * These are the ids for processing of `Special symbols'. They are used 9617c478bd9Sstevel@tonic-gate * to set the sym->sd_aux->sa_symspec field. 9627c478bd9Sstevel@tonic-gate */ 9637c478bd9Sstevel@tonic-gate #define SDAUX_ID_ETEXT 1 /* etext && _etext symbol */ 9647c478bd9Sstevel@tonic-gate #define SDAUX_ID_EDATA 2 /* edata && _edata symbol */ 9657c478bd9Sstevel@tonic-gate #define SDAUX_ID_END 3 /* end, _end, && _END_ symbol */ 9667c478bd9Sstevel@tonic-gate #define SDAUX_ID_DYN 4 /* DYNAMIC && _DYNAMIC symbol */ 9677c478bd9Sstevel@tonic-gate #define SDAUX_ID_PLT 5 /* _PROCEDURE_LINKAGE_TABLE_ symbol */ 9687c478bd9Sstevel@tonic-gate #define SDAUX_ID_GOT 6 /* _GLOBAL_OFFSET_TABLE_ symbol */ 9697c478bd9Sstevel@tonic-gate #define SDAUX_ID_START 7 /* START_ && _START_ symbol */ 9707c478bd9Sstevel@tonic-gate 9717c478bd9Sstevel@tonic-gate /* 9727c478bd9Sstevel@tonic-gate * Flags for sym_desc.sd_flags 9737c478bd9Sstevel@tonic-gate */ 9747c478bd9Sstevel@tonic-gate #define FLG_SY_MVTOCOMM 0x00000001 /* assign symbol to common (.bss) */ 9757c478bd9Sstevel@tonic-gate /* this is a result of a */ 9767c478bd9Sstevel@tonic-gate /* copy reloc against sym */ 9777c478bd9Sstevel@tonic-gate #define FLG_SY_GLOBREF 0x00000002 /* a global reference has been seen */ 9787c478bd9Sstevel@tonic-gate #define FLG_SY_WEAKDEF 0x00000004 /* a weak definition has been used */ 9797c478bd9Sstevel@tonic-gate #define FLG_SY_CLEAN 0x00000008 /* `Sym' entry points to original */ 9807c478bd9Sstevel@tonic-gate /* input file (read-only). */ 9817c478bd9Sstevel@tonic-gate #define FLG_SY_UPREQD 0x00000010 /* symbol value update is required, */ 9827c478bd9Sstevel@tonic-gate /* either it's used as an entry */ 9837c478bd9Sstevel@tonic-gate /* point or for relocation, but */ 9847c478bd9Sstevel@tonic-gate /* it must be updated even if */ 9857c478bd9Sstevel@tonic-gate /* the -s flag is in effect */ 9867c478bd9Sstevel@tonic-gate #define FLG_SY_NOTAVAIL 0x00000020 /* symbol is not available to the */ 9877c478bd9Sstevel@tonic-gate /* application either because it */ 9887c478bd9Sstevel@tonic-gate /* originates from an implicitly */ 9897c478bd9Sstevel@tonic-gate /* referenced shared object, or */ 9907c478bd9Sstevel@tonic-gate /* because it is not part of a */ 9917c478bd9Sstevel@tonic-gate /* specified version. */ 9927c478bd9Sstevel@tonic-gate #define FLG_SY_REDUCED 0x00000040 /* a global is reduced to local */ 9937c478bd9Sstevel@tonic-gate #define FLG_SY_VERSPROM 0x00000080 /* version definition has been */ 9947c478bd9Sstevel@tonic-gate /* promoted to output file */ 9957c478bd9Sstevel@tonic-gate #define FLG_SY_PROT 0x00000100 /* stv_protected visibility seen */ 9967c478bd9Sstevel@tonic-gate 9977c478bd9Sstevel@tonic-gate #define FLG_SY_MAPREF 0x00000200 /* symbol reference generated by user */ 9987c478bd9Sstevel@tonic-gate /* from mapfile */ 9997c478bd9Sstevel@tonic-gate #define FLG_SY_REFRSD 0x00000400 /* symbols sd_ref has been raised */ 10007c478bd9Sstevel@tonic-gate /* due to a copy-relocs */ 10017c478bd9Sstevel@tonic-gate /* weak-strong pairing */ 10029a411307Srie #define FLG_SY_INTPOSE 0x00000800 /* symbol defines an interposer */ 10037c478bd9Sstevel@tonic-gate #define FLG_SY_INVALID 0x00001000 /* unwanted/erroneous symbol */ 10047c478bd9Sstevel@tonic-gate #define FLG_SY_SMGOT 0x00002000 /* small got index assigned to symbol */ 10057c478bd9Sstevel@tonic-gate /* sparc only */ 10067c478bd9Sstevel@tonic-gate #define FLG_SY_PARENT 0x00004000 /* symbol to be found in parent */ 10077c478bd9Sstevel@tonic-gate /* only used with direct bindings */ 10087c478bd9Sstevel@tonic-gate #define FLG_SY_LAZYLD 0x00008000 /* symbol to cause lazyloading of */ 10097c478bd9Sstevel@tonic-gate /* parent object */ 10107c478bd9Sstevel@tonic-gate #define FLG_SY_ISDISC 0x00010000 /* symbol is a member of a DISCARDED */ 10117c478bd9Sstevel@tonic-gate /* section (COMDAT) */ 10127c478bd9Sstevel@tonic-gate #define FLG_SY_PAREXPN 0x00020000 /* partially init. symbol to be */ 10137c478bd9Sstevel@tonic-gate /* expanded */ 10147c478bd9Sstevel@tonic-gate #define FLG_SY_PLTPAD 0x00040000 /* pltpadding has been allocated for */ 10157c478bd9Sstevel@tonic-gate /* this symbol */ 10167c478bd9Sstevel@tonic-gate #define FLG_SY_REGSYM 0x00080000 /* REGISTER symbol (sparc only) */ 10177c478bd9Sstevel@tonic-gate #define FLG_SY_SOFOUND 0x00100000 /* compared against an SO definition */ 10187c478bd9Sstevel@tonic-gate #define FLG_SY_EXTERN 0x00200000 /* symbol is external, allows -zdefs */ 10197c478bd9Sstevel@tonic-gate /* error suppression */ 10207c478bd9Sstevel@tonic-gate #define FLG_SY_MAPUSED 0x00400000 /* mapfile symbol used (occurred */ 10217c478bd9Sstevel@tonic-gate /* within a relocatable object) */ 10227c478bd9Sstevel@tonic-gate #define FLG_SY_COMMEXP 0x00800000 /* COMMON symbol which has been */ 10237c478bd9Sstevel@tonic-gate /* allocated */ 10247c478bd9Sstevel@tonic-gate #define FLG_SY_CMDREF 0x01000000 /* symbol was referenced from the */ 10257c478bd9Sstevel@tonic-gate /* command line. (ld -u <>, */ 10267c478bd9Sstevel@tonic-gate /* ld -zrtldinfo=<>, ...) */ 10277c478bd9Sstevel@tonic-gate #define FLG_SY_SPECSEC 0x02000000 /* section index is reserved value */ 10287c478bd9Sstevel@tonic-gate /* ABS, COMMON, ... */ 10297c478bd9Sstevel@tonic-gate #define FLG_SY_TENTSYM 0x04000000 /* tentative symbol */ 10307c478bd9Sstevel@tonic-gate #define FLG_SY_VISIBLE 0x08000000 /* symbols visibility determined */ 10317c478bd9Sstevel@tonic-gate #define FLG_SY_STDFLTR 0x10000000 /* symbol is a standard filter */ 10327c478bd9Sstevel@tonic-gate #define FLG_SY_AUXFLTR 0x20000000 /* symbol is an auxiliary filter */ 1033d579eb63Sab196087 #define FLG_SY_DYNSORT 0x40000000 /* req. in dyn[sym|tls]sort section */ 1034d579eb63Sab196087 #define FLG_SY_NODYNSORT 0x80000000 /* excluded from dyn[sym_tls]sort sec */ 10357c478bd9Sstevel@tonic-gate 1036635216b6SRod Evans #define FLG_SY_DEFAULT 0x0000100000000 /* global symbol, default */ 1037635216b6SRod Evans #define FLG_SY_SINGLE 0x0000200000000 /* global symbol, singleton defined */ 1038635216b6SRod Evans #define FLG_SY_PROTECT 0x0000400000000 /* global symbol, protected defined */ 1039635216b6SRod Evans #define FLG_SY_EXPORT 0x0000800000000 /* global symbol, exported defined */ 10407c478bd9Sstevel@tonic-gate 1041635216b6SRod Evans #define MSK_SY_GLOBAL \ 1042635216b6SRod Evans (FLG_SY_DEFAULT | FLG_SY_SINGLE | FLG_SY_PROTECT | FLG_SY_EXPORT) 104360758829Srie /* this mask indicates that the */ 104460758829Srie /* symbol has been explicitly */ 104560758829Srie /* defined within a mapfile */ 104660758829Srie /* definition, and is a candidate */ 104760758829Srie /* for versioning */ 104860758829Srie 1049635216b6SRod Evans #define FLG_SY_HIDDEN 0x0001000000000 /* global symbol, reduce to local */ 1050635216b6SRod Evans #define FLG_SY_ELIM 0x0002000000000 /* global symbol, eliminate */ 1051635216b6SRod Evans #define FLG_SY_IGNORE 0x0004000000000 /* global symbol, ignored */ 105260758829Srie 1053635216b6SRod Evans #define MSK_SY_LOCAL (FLG_SY_HIDDEN | FLG_SY_ELIM | FLG_SY_IGNORE) 105460758829Srie /* this mask allows all local state */ 105560758829Srie /* flags to be removed when the */ 105660758829Srie /* symbol is copy relocated */ 105760758829Srie 1058635216b6SRod Evans #define FLG_SY_EXPDEF 0x0008000000000 /* symbol visibility defined */ 105960758829Srie /* explicitly */ 106060758829Srie 1061635216b6SRod Evans #define MSK_SY_NOAUTO (FLG_SY_SINGLE | FLG_SY_EXPORT | FLG_SY_EXPDEF) 106260758829Srie /* this mask indicates that the */ 106360758829Srie /* symbol is not a candidate for */ 106460758829Srie /* auto-reduction/elimination */ 106560758829Srie 1066635216b6SRod Evans #define FLG_SY_MAPFILE 0x0010000000000 /* symbol attribute defined in a */ 106760758829Srie /* mapfile */ 1068635216b6SRod Evans #define FLG_SY_DIR 0x0020000000000 /* global symbol, direct bindings */ 1069635216b6SRod Evans #define FLG_SY_NDIR 0x0040000000000 /* global symbol, nondirect bindings */ 1070635216b6SRod Evans #define FLG_SY_OVERLAP 0x0080000000000 /* move entry overlap detected */ 10717c478bd9Sstevel@tonic-gate 10727c478bd9Sstevel@tonic-gate /* 107360758829Srie * Create a mask for (sym.st_other & visibility) since the gABI does not yet 107460758829Srie * define a ELF*_ST_OTHER macro. 10757c478bd9Sstevel@tonic-gate */ 107660758829Srie #define MSK_SYM_VISIBILITY 0x7 10777c478bd9Sstevel@tonic-gate 10787c478bd9Sstevel@tonic-gate /* 10797c478bd9Sstevel@tonic-gate * Structure to manage the shared object definition lists. There are two lists 10807c478bd9Sstevel@tonic-gate * that use this structure: 10817c478bd9Sstevel@tonic-gate * 108228bda19cSRod Evans * - ofl_soneed; maintain the list of implicitly required dependencies 10837c478bd9Sstevel@tonic-gate * (ie. shared objects needed by other shared objects). These definitions 10847c478bd9Sstevel@tonic-gate * may include RPATH's required to locate the dependencies, and any 10857c478bd9Sstevel@tonic-gate * version requirements. 10867c478bd9Sstevel@tonic-gate * 108728bda19cSRod Evans * - ofl_socntl; maintains the shared object control definitions. These are 10887c478bd9Sstevel@tonic-gate * provided by the user (via a mapfile) and are used to indicate any 108928bda19cSRod Evans * version control requirements. 10907c478bd9Sstevel@tonic-gate */ 10917c478bd9Sstevel@tonic-gate struct sdf_desc { 10927c478bd9Sstevel@tonic-gate const char *sdf_name; /* the shared objects file name */ 10937c478bd9Sstevel@tonic-gate char *sdf_rpath; /* library search path DT_RPATH */ 10947c478bd9Sstevel@tonic-gate const char *sdf_rfile; /* referencing file for diagnostics */ 10957c478bd9Sstevel@tonic-gate Ifl_desc *sdf_file; /* the final input file descriptor */ 109657ef7aa9SRod Evans Alist *sdf_vers; /* list of versions that are required */ 10977c478bd9Sstevel@tonic-gate /* from this object */ 109857ef7aa9SRod Evans Alist *sdf_verneed; /* list of VERNEEDS to create for */ 10994a8d0ea7SAli Bahrami /* object via mapfile ADDVERS */ 11007c478bd9Sstevel@tonic-gate Word sdf_flags; 11017c478bd9Sstevel@tonic-gate }; 11027c478bd9Sstevel@tonic-gate 11034a8d0ea7SAli Bahrami #define FLG_SDF_SELECT 0x01 /* version control selection required */ 11044a8d0ea7SAli Bahrami #define FLG_SDF_VERIFY 0x02 /* version definition verification */ 11057c478bd9Sstevel@tonic-gate /* required */ 11064a8d0ea7SAli Bahrami #define FLG_SDF_ADDVER 0x04 /* add VERNEED references */ 11077c478bd9Sstevel@tonic-gate 11087c478bd9Sstevel@tonic-gate /* 11097c478bd9Sstevel@tonic-gate * Structure to manage shared object version usage requirements. 11107c478bd9Sstevel@tonic-gate */ 11117c478bd9Sstevel@tonic-gate struct sdv_desc { 11127c478bd9Sstevel@tonic-gate const char *sdv_name; /* version name */ 11137c478bd9Sstevel@tonic-gate const char *sdv_ref; /* versions reference */ 11147c478bd9Sstevel@tonic-gate Word sdv_flags; /* flags */ 11157c478bd9Sstevel@tonic-gate }; 11167c478bd9Sstevel@tonic-gate 11177c478bd9Sstevel@tonic-gate #define FLG_SDV_MATCHED 0x01 /* VERDEF found and matched */ 11187c478bd9Sstevel@tonic-gate 11197c478bd9Sstevel@tonic-gate /* 11207c478bd9Sstevel@tonic-gate * Structures to manage versioning information. Two versioning structures are 11217c478bd9Sstevel@tonic-gate * defined: 11227c478bd9Sstevel@tonic-gate * 112328bda19cSRod Evans * - a version descriptor maintains a linked list of versions and their 11247c478bd9Sstevel@tonic-gate * associated dependencies. This is used to build the version definitions 11257c478bd9Sstevel@tonic-gate * for an image being created (see map_symbol), and to determine the 11267c478bd9Sstevel@tonic-gate * version dependency graph for any input files that are versioned. 11277c478bd9Sstevel@tonic-gate * 112828bda19cSRod Evans * - a version index array contains each version of an input file that is 11297c478bd9Sstevel@tonic-gate * being processed. It informs us which versions are available for 11307c478bd9Sstevel@tonic-gate * binding, and is used to generate any version dependency information. 11317c478bd9Sstevel@tonic-gate */ 11327c478bd9Sstevel@tonic-gate struct ver_desc { 11337c478bd9Sstevel@tonic-gate const char *vd_name; /* version name */ 11347c478bd9Sstevel@tonic-gate Ifl_desc *vd_file; /* file that defined version */ 113557ef7aa9SRod Evans Word vd_hash; /* hash value of name */ 11367c478bd9Sstevel@tonic-gate Half vd_ndx; /* coordinates with symbol index */ 11377c478bd9Sstevel@tonic-gate Half vd_flags; /* version information */ 113857ef7aa9SRod Evans APlist *vd_deps; /* version dependencies */ 11397c478bd9Sstevel@tonic-gate Ver_desc *vd_ref; /* dependency's first reference */ 11407c478bd9Sstevel@tonic-gate }; 11417c478bd9Sstevel@tonic-gate 11427c478bd9Sstevel@tonic-gate struct ver_index { 11437c478bd9Sstevel@tonic-gate const char *vi_name; /* dependency version name */ 11447c478bd9Sstevel@tonic-gate Half vi_flags; /* communicates availability */ 1145090a8d9eSAli Bahrami Half vi_overndx; /* Index asssigned to this version in */ 1146090a8d9eSAli Bahrami /* output object Verneed section */ 11477c478bd9Sstevel@tonic-gate Ver_desc *vi_desc; /* cross reference to descriptor */ 11487c478bd9Sstevel@tonic-gate }; 11497c478bd9Sstevel@tonic-gate 11507c478bd9Sstevel@tonic-gate /* 11517c478bd9Sstevel@tonic-gate * Define any internal version descriptor flags ([vd|vi]_flags). Note that the 11527c478bd9Sstevel@tonic-gate * first byte is reserved for user visible flags (refer VER_FLG's in link.h). 11537c478bd9Sstevel@tonic-gate */ 11547c478bd9Sstevel@tonic-gate #define MSK_VER_USER 0x0f /* mask for user visible flags */ 11557c478bd9Sstevel@tonic-gate 11567c478bd9Sstevel@tonic-gate #define FLG_VER_AVAIL 0x10 /* version is available for binding */ 11577c478bd9Sstevel@tonic-gate #define FLG_VER_REFER 0x20 /* version has been referenced */ 11584a8d0ea7SAli Bahrami #define FLG_VER_CYCLIC 0x40 /* a member of cyclic dependency */ 11597c478bd9Sstevel@tonic-gate 11607c478bd9Sstevel@tonic-gate /* 11617c478bd9Sstevel@tonic-gate * isalist(1) descriptor - used to break an isalist string into its component 11627c478bd9Sstevel@tonic-gate * options. 11637c478bd9Sstevel@tonic-gate */ 11647c478bd9Sstevel@tonic-gate struct isa_opt { 11657c478bd9Sstevel@tonic-gate char *isa_name; /* individual isa option name */ 11667c478bd9Sstevel@tonic-gate size_t isa_namesz; /* and associated size */ 11677c478bd9Sstevel@tonic-gate }; 11687c478bd9Sstevel@tonic-gate 11697c478bd9Sstevel@tonic-gate struct isa_desc { 11707c478bd9Sstevel@tonic-gate char *isa_list; /* sysinfo(SI_ISALIST) list */ 11717c478bd9Sstevel@tonic-gate size_t isa_listsz; /* and associated size */ 11727c478bd9Sstevel@tonic-gate Isa_opt *isa_opt; /* table of individual isa options */ 11737c478bd9Sstevel@tonic-gate size_t isa_optno; /* and associated number */ 11747c478bd9Sstevel@tonic-gate }; 11757c478bd9Sstevel@tonic-gate 11767c478bd9Sstevel@tonic-gate /* 11777c478bd9Sstevel@tonic-gate * uname(2) descriptor - used to break a utsname structure into its component 11787c478bd9Sstevel@tonic-gate * options (at least those that we're interested in). 11797c478bd9Sstevel@tonic-gate */ 11807c478bd9Sstevel@tonic-gate struct uts_desc { 11817c478bd9Sstevel@tonic-gate char *uts_osname; /* operating system name */ 11827c478bd9Sstevel@tonic-gate size_t uts_osnamesz; /* and associated size */ 11837c478bd9Sstevel@tonic-gate char *uts_osrel; /* operating system release */ 11847c478bd9Sstevel@tonic-gate size_t uts_osrelsz; /* and associated size */ 11857c478bd9Sstevel@tonic-gate }; 11867c478bd9Sstevel@tonic-gate 11877c478bd9Sstevel@tonic-gate /* 11887c478bd9Sstevel@tonic-gate * SHT_GROUP descriptor - used to track group sections at the global 11890e233487SRod Evans * level to resolve conflicts and determine which to keep. 11907c478bd9Sstevel@tonic-gate */ 11917c478bd9Sstevel@tonic-gate struct group_desc { 11920e233487SRod Evans Is_desc *gd_isc; /* input section descriptor */ 11930e233487SRod Evans Is_desc *gd_oisc; /* overriding input section */ 11940e233487SRod Evans /* descriptor when discarded */ 11950e233487SRod Evans const char *gd_name; /* group name (signature symbol) */ 1196cc7efc4fSrie Word *gd_data; /* data for group section */ 1197cc7efc4fSrie size_t gd_cnt; /* number of entries in group data */ 11987c478bd9Sstevel@tonic-gate }; 11997c478bd9Sstevel@tonic-gate 12007c478bd9Sstevel@tonic-gate /* 12017c478bd9Sstevel@tonic-gate * Indexes into the ld_support_funcs[] table. 12027c478bd9Sstevel@tonic-gate */ 12037c478bd9Sstevel@tonic-gate typedef enum { 1204d2d5cf7cSAli Bahrami LDS_VERSION = 0, /* Must be first and have value 0 */ 12057c478bd9Sstevel@tonic-gate LDS_INPUT_DONE, 12067c478bd9Sstevel@tonic-gate LDS_START, 12077c478bd9Sstevel@tonic-gate LDS_ATEXIT, 12083906e0c2Srie LDS_OPEN, 12097c478bd9Sstevel@tonic-gate LDS_FILE, 12102926dd2eSrie LDS_INSEC, 12112926dd2eSrie LDS_SEC, 12127c478bd9Sstevel@tonic-gate LDS_NUM 12137c478bd9Sstevel@tonic-gate } Support_ndx; 12147c478bd9Sstevel@tonic-gate 12157c478bd9Sstevel@tonic-gate /* 12167c478bd9Sstevel@tonic-gate * Structure to manage archive member caching. Each archive has an archive 12177c478bd9Sstevel@tonic-gate * descriptor (Ar_desc) associated with it. This contains pointers to the 12187c478bd9Sstevel@tonic-gate * archive symbol table (obtained by elf_getarsyms(3e)) and an auxiliary 12197c478bd9Sstevel@tonic-gate * structure (Ar_uax[]) that parallels this symbol table. The member element 12207c478bd9Sstevel@tonic-gate * of this auxiliary table indicates whether the archive member associated with 12217c478bd9Sstevel@tonic-gate * the symbol offset has already been extracted (AREXTRACTED) or partially 12227c478bd9Sstevel@tonic-gate * processed (refer process_member()). 12237c478bd9Sstevel@tonic-gate */ 12247c478bd9Sstevel@tonic-gate typedef struct ar_mem { 12257c478bd9Sstevel@tonic-gate Elf *am_elf; /* elf descriptor for this member */ 12267c478bd9Sstevel@tonic-gate char *am_name; /* members name */ 12277c478bd9Sstevel@tonic-gate char *am_path; /* path (ie. lib(foo.o)) */ 12287c478bd9Sstevel@tonic-gate Sym *am_syms; /* start of global symbols */ 12297c478bd9Sstevel@tonic-gate char *am_strs; /* associated string table start */ 12307c478bd9Sstevel@tonic-gate Xword am_symn; /* no. of global symbols */ 12317c478bd9Sstevel@tonic-gate } Ar_mem; 12327c478bd9Sstevel@tonic-gate 12337c478bd9Sstevel@tonic-gate typedef struct ar_aux { 12347c478bd9Sstevel@tonic-gate Sym_desc *au_syms; /* internal symbol descriptor */ 12357c478bd9Sstevel@tonic-gate Ar_mem *au_mem; /* associated member */ 12367c478bd9Sstevel@tonic-gate } Ar_aux; 12377c478bd9Sstevel@tonic-gate 12387c478bd9Sstevel@tonic-gate #define FLG_ARMEM_PROC (Ar_mem *)-1 12397c478bd9Sstevel@tonic-gate 12407c478bd9Sstevel@tonic-gate typedef struct ar_desc { 12417c478bd9Sstevel@tonic-gate const char *ad_name; /* archive file name */ 12427c478bd9Sstevel@tonic-gate Elf *ad_elf; /* elf descriptor for the archive */ 12437c478bd9Sstevel@tonic-gate Elf_Arsym *ad_start; /* archive symbol table start */ 12447c478bd9Sstevel@tonic-gate Ar_aux *ad_aux; /* auxiliary symbol information */ 12457c478bd9Sstevel@tonic-gate dev_t ad_stdev; /* device id and inode number for */ 12467c478bd9Sstevel@tonic-gate ino_t ad_stino; /* multiple inclusion checks */ 12471d9df23bSab196087 ofl_flag_t ad_flags; /* archive specific cmd line flags */ 12487c478bd9Sstevel@tonic-gate } Ar_desc; 12497c478bd9Sstevel@tonic-gate 12507c478bd9Sstevel@tonic-gate /* 12517c478bd9Sstevel@tonic-gate * Define any archive descriptor flags. NOTE, make sure they do not clash with 12527c478bd9Sstevel@tonic-gate * any output file descriptor archive extraction flags, as these are saved in 12537c478bd9Sstevel@tonic-gate * the same entry (see MSK_OF1_ARCHIVE). 12547c478bd9Sstevel@tonic-gate */ 12557c478bd9Sstevel@tonic-gate #define FLG_ARD_EXTRACT 0x00010000 /* archive member has been extracted */ 12567c478bd9Sstevel@tonic-gate 1257*69112eddSAli Bahrami /* Mapfile versions supported by libld */ 1258*69112eddSAli Bahrami #define MFV_NONE 0 /* Not a valid version */ 1259*69112eddSAli Bahrami #define MFV_SYSV 1 /* Original System V syntax */ 1260*69112eddSAli Bahrami #define MFV_SOLARIS 2 /* Solaris mapfile syntax */ 1261*69112eddSAli Bahrami #define MFV_NUM 3 /* # of mapfile versions */ 1262*69112eddSAli Bahrami 1263*69112eddSAli Bahrami 12647c478bd9Sstevel@tonic-gate /* 12655aefb655Srie * Function Declarations. 12667c478bd9Sstevel@tonic-gate */ 12675aefb655Srie #if defined(_ELF64) 12685aefb655Srie 12695aefb655Srie #define ld_create_outfile ld64_create_outfile 12705aefb655Srie #define ld_ent_setup ld64_ent_setup 1271c1c6f601Srie #define ld_init_strings ld64_init_strings 1272ba2be530Sab196087 #define ld_init_target ld64_init_target 12735aefb655Srie #define ld_make_sections ld64_make_sections 12745aefb655Srie #define ld_main ld64_main 12752926dd2eSrie #define ld_ofl_cleanup ld64_ofl_cleanup 127656deab07SRod Evans #define ld_process_mem ld64_process_mem 12775aefb655Srie #define ld_reloc_init ld64_reloc_init 12785aefb655Srie #define ld_reloc_process ld64_reloc_process 12795aefb655Srie #define ld_sym_validate ld64_sym_validate 12805aefb655Srie #define ld_update_outfile ld64_update_outfile 12815aefb655Srie 12825aefb655Srie #else 12835aefb655Srie 12845aefb655Srie #define ld_create_outfile ld32_create_outfile 12855aefb655Srie #define ld_ent_setup ld32_ent_setup 1286c1c6f601Srie #define ld_init_strings ld32_init_strings 1287ba2be530Sab196087 #define ld_init_target ld32_init_target 12885aefb655Srie #define ld_make_sections ld32_make_sections 12895aefb655Srie #define ld_main ld32_main 12902926dd2eSrie #define ld_ofl_cleanup ld32_ofl_cleanup 129156deab07SRod Evans #define ld_process_mem ld32_process_mem 12925aefb655Srie #define ld_reloc_init ld32_reloc_init 12935aefb655Srie #define ld_reloc_process ld32_reloc_process 12945aefb655Srie #define ld_sym_validate ld32_sym_validate 12955aefb655Srie #define ld_update_outfile ld32_update_outfile 12965aefb655Srie 12975aefb655Srie #endif 12985aefb655Srie 129992a02081SRod Evans extern int ld_getopt(Lm_list *, int, int, char **); 130092a02081SRod Evans 1301ba2be530Sab196087 extern int ld32_main(int, char **, Half); 1302ba2be530Sab196087 extern int ld64_main(int, char **, Half); 13035aefb655Srie 13045aefb655Srie extern uintptr_t ld_create_outfile(Ofl_desc *); 13055aefb655Srie extern uintptr_t ld_ent_setup(Ofl_desc *, Xword); 1306c1c6f601Srie extern uintptr_t ld_init_strings(Ofl_desc *); 1307ba2be530Sab196087 extern int ld_init_target(Lm_list *, Half mach); 13085aefb655Srie extern uintptr_t ld_make_sections(Ofl_desc *); 13092926dd2eSrie extern void ld_ofl_cleanup(Ofl_desc *); 131056deab07SRod Evans extern Ifl_desc *ld_process_mem(const char *, const char *, char *, 131156deab07SRod Evans size_t, Ofl_desc *, Rej_desc *); 13125aefb655Srie extern uintptr_t ld_reloc_init(Ofl_desc *); 13135aefb655Srie extern uintptr_t ld_reloc_process(Ofl_desc *); 13145aefb655Srie extern uintptr_t ld_sym_validate(Ofl_desc *); 13155aefb655Srie extern uintptr_t ld_update_outfile(Ofl_desc *); 13165aefb655Srie 13177c478bd9Sstevel@tonic-gate #ifdef __cplusplus 13187c478bd9Sstevel@tonic-gate } 13197c478bd9Sstevel@tonic-gate #endif 13207c478bd9Sstevel@tonic-gate 13217c478bd9Sstevel@tonic-gate #endif /* _LIBLD_H */ 1322