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 50bc07c75Srie * Common Development and Distribution License (the "License"). 60bc07c75Srie * 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 */ 217c478bd9Sstevel@tonic-gate 227c478bd9Sstevel@tonic-gate /* 230bc07c75Srie * Copyright (c) 1988 AT&T 240bc07c75Srie * All Rights Reserved 250bc07c75Srie * 260bc07c75Srie * Copyright 2006 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 _SYS_LINK_H 317c478bd9Sstevel@tonic-gate #define _SYS_LINK_H 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #ifndef _ASM 367c478bd9Sstevel@tonic-gate #include <sys/types.h> 377c478bd9Sstevel@tonic-gate #include <sys/elftypes.h> 387c478bd9Sstevel@tonic-gate #endif 397c478bd9Sstevel@tonic-gate 407c478bd9Sstevel@tonic-gate #ifdef __cplusplus 417c478bd9Sstevel@tonic-gate extern "C" { 427c478bd9Sstevel@tonic-gate #endif 437c478bd9Sstevel@tonic-gate 447c478bd9Sstevel@tonic-gate /* 457c478bd9Sstevel@tonic-gate * Communication structures for the runtime linker. 467c478bd9Sstevel@tonic-gate */ 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate /* 497c478bd9Sstevel@tonic-gate * The following data structure provides a self-identifying union consisting 507c478bd9Sstevel@tonic-gate * of a tag from a known list and a value. 517c478bd9Sstevel@tonic-gate */ 527c478bd9Sstevel@tonic-gate #ifndef _ASM 537c478bd9Sstevel@tonic-gate typedef struct { 547c478bd9Sstevel@tonic-gate Elf32_Sword d_tag; /* how to interpret value */ 557c478bd9Sstevel@tonic-gate union { 567c478bd9Sstevel@tonic-gate Elf32_Word d_val; 577c478bd9Sstevel@tonic-gate Elf32_Addr d_ptr; 587c478bd9Sstevel@tonic-gate Elf32_Off d_off; 597c478bd9Sstevel@tonic-gate } d_un; 607c478bd9Sstevel@tonic-gate } Elf32_Dyn; 617c478bd9Sstevel@tonic-gate 627c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_LONGLONG_TYPE) 637c478bd9Sstevel@tonic-gate typedef struct { 647c478bd9Sstevel@tonic-gate Elf64_Xword d_tag; /* how to interpret value */ 657c478bd9Sstevel@tonic-gate union { 667c478bd9Sstevel@tonic-gate Elf64_Xword d_val; 677c478bd9Sstevel@tonic-gate Elf64_Addr d_ptr; 687c478bd9Sstevel@tonic-gate } d_un; 697c478bd9Sstevel@tonic-gate } Elf64_Dyn; 707c478bd9Sstevel@tonic-gate #endif /* defined(_LP64) || defined(_LONGLONG_TYPE) */ 717c478bd9Sstevel@tonic-gate #endif /* _ASM */ 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate /* 747c478bd9Sstevel@tonic-gate * Tag values 757c478bd9Sstevel@tonic-gate */ 767c478bd9Sstevel@tonic-gate #define DT_NULL 0 /* last entry in list */ 777c478bd9Sstevel@tonic-gate #define DT_NEEDED 1 /* a needed object */ 787c478bd9Sstevel@tonic-gate #define DT_PLTRELSZ 2 /* size of relocations for the PLT */ 797c478bd9Sstevel@tonic-gate #define DT_PLTGOT 3 /* addresses used by procedure linkage table */ 807c478bd9Sstevel@tonic-gate #define DT_HASH 4 /* hash table */ 817c478bd9Sstevel@tonic-gate #define DT_STRTAB 5 /* string table */ 827c478bd9Sstevel@tonic-gate #define DT_SYMTAB 6 /* symbol table */ 837c478bd9Sstevel@tonic-gate #define DT_RELA 7 /* addr of relocation entries */ 847c478bd9Sstevel@tonic-gate #define DT_RELASZ 8 /* size of relocation table */ 857c478bd9Sstevel@tonic-gate #define DT_RELAENT 9 /* base size of relocation entry */ 867c478bd9Sstevel@tonic-gate #define DT_STRSZ 10 /* size of string table */ 877c478bd9Sstevel@tonic-gate #define DT_SYMENT 11 /* size of symbol table entry */ 887c478bd9Sstevel@tonic-gate #define DT_INIT 12 /* _init addr */ 897c478bd9Sstevel@tonic-gate #define DT_FINI 13 /* _fini addr */ 907c478bd9Sstevel@tonic-gate #define DT_SONAME 14 /* name of this shared object */ 917c478bd9Sstevel@tonic-gate #define DT_RPATH 15 /* run-time search path */ 927c478bd9Sstevel@tonic-gate #define DT_SYMBOLIC 16 /* shared object linked -Bsymbolic */ 937c478bd9Sstevel@tonic-gate #define DT_REL 17 /* addr of relocation entries */ 947c478bd9Sstevel@tonic-gate #define DT_RELSZ 18 /* size of relocation table */ 957c478bd9Sstevel@tonic-gate #define DT_RELENT 19 /* base size of relocation entry */ 967c478bd9Sstevel@tonic-gate #define DT_PLTREL 20 /* relocation type for PLT entry */ 977c478bd9Sstevel@tonic-gate #define DT_DEBUG 21 /* pointer to r_debug structure */ 987c478bd9Sstevel@tonic-gate #define DT_TEXTREL 22 /* text relocations remain for this object */ 997c478bd9Sstevel@tonic-gate #define DT_JMPREL 23 /* pointer to the PLT relocation entries */ 1007c478bd9Sstevel@tonic-gate #define DT_BIND_NOW 24 /* perform all relocations at load of object */ 1017c478bd9Sstevel@tonic-gate #define DT_INIT_ARRAY 25 /* pointer to .initarray */ 1027c478bd9Sstevel@tonic-gate #define DT_FINI_ARRAY 26 /* pointer to .finiarray */ 1037c478bd9Sstevel@tonic-gate #define DT_INIT_ARRAYSZ 27 /* size of .initarray */ 1047c478bd9Sstevel@tonic-gate #define DT_FINI_ARRAYSZ 28 /* size of .finiarray */ 1057c478bd9Sstevel@tonic-gate #define DT_RUNPATH 29 /* run-time search path */ 1067c478bd9Sstevel@tonic-gate #define DT_FLAGS 30 /* state flags - see DF_* */ 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate #define DT_ENCODING 32 /* DT_* encoding rules start after this */ 1097c478bd9Sstevel@tonic-gate #define DT_PREINIT_ARRAY 32 /* pointer to .preinitarray segment */ 1107c478bd9Sstevel@tonic-gate #define DT_PREINIT_ARRAYSZ 33 /* size of .preinitarray segment */ 1117c478bd9Sstevel@tonic-gate 1127c478bd9Sstevel@tonic-gate #define DT_MAXPOSTAGS 34 /* number of positive tags */ 1137c478bd9Sstevel@tonic-gate 1147c478bd9Sstevel@tonic-gate #define DT_LOOS 0x6000000d /* OS specific range */ 1157c478bd9Sstevel@tonic-gate #define DT_SUNW_AUXILIARY 0x6000000d /* symbol auxiliary name */ 1167c478bd9Sstevel@tonic-gate #define DT_SUNW_RTLDINF 0x6000000e /* ld.so.1 info (private) */ 1177c478bd9Sstevel@tonic-gate #define DT_SUNW_FILTER 0x6000000f /* symbol filter name */ 1187c478bd9Sstevel@tonic-gate #define DT_SUNW_CAP 0x60000010 /* hardware/software */ 1197c478bd9Sstevel@tonic-gate /* capabilities */ 1207c478bd9Sstevel@tonic-gate #define DT_HIOS 0x6ffff000 1217c478bd9Sstevel@tonic-gate 1227c478bd9Sstevel@tonic-gate /* 1237c478bd9Sstevel@tonic-gate * The following values have been deprecated and remain here to allow 1247c478bd9Sstevel@tonic-gate * compatibility with older binaries. 1257c478bd9Sstevel@tonic-gate */ 1267c478bd9Sstevel@tonic-gate #define DT_DEPRECATED_SPARC_REGISTER 0x7000001 1277c478bd9Sstevel@tonic-gate 1287c478bd9Sstevel@tonic-gate /* 1297c478bd9Sstevel@tonic-gate * DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the 1307c478bd9Sstevel@tonic-gate * Dyn.d_un.d_val field of the Elf*_Dyn structure. 1317c478bd9Sstevel@tonic-gate */ 1327c478bd9Sstevel@tonic-gate #define DT_VALRNGLO 0x6ffffd00 1337c478bd9Sstevel@tonic-gate #define DT_CHECKSUM 0x6ffffdf8 /* elf checksum */ 1347c478bd9Sstevel@tonic-gate #define DT_PLTPADSZ 0x6ffffdf9 /* pltpadding size */ 1357c478bd9Sstevel@tonic-gate #define DT_MOVEENT 0x6ffffdfa /* move table entry size */ 1367c478bd9Sstevel@tonic-gate #define DT_MOVESZ 0x6ffffdfb /* move table size */ 1377c478bd9Sstevel@tonic-gate #define DT_FEATURE_1 0x6ffffdfc /* feature holder */ 1387c478bd9Sstevel@tonic-gate #define DT_POSFLAG_1 0x6ffffdfd /* flags for DT_* entries, effecting */ 1397c478bd9Sstevel@tonic-gate /* the following DT_* entry. */ 1407c478bd9Sstevel@tonic-gate /* See DF_P1_* definitions */ 1417c478bd9Sstevel@tonic-gate #define DT_SYMINSZ 0x6ffffdfe /* syminfo table size (in bytes) */ 1427c478bd9Sstevel@tonic-gate #define DT_SYMINENT 0x6ffffdff /* syminfo entry size (in bytes) */ 1437c478bd9Sstevel@tonic-gate #define DT_VALRNGHI 0x6ffffdff 1447c478bd9Sstevel@tonic-gate 1457c478bd9Sstevel@tonic-gate /* 1467c478bd9Sstevel@tonic-gate * DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the 1477c478bd9Sstevel@tonic-gate * Dyn.d_un.d_ptr field of the Elf*_Dyn structure. 1487c478bd9Sstevel@tonic-gate * 1497c478bd9Sstevel@tonic-gate * If any adjustment is made to the ELF object after it has been 1507c478bd9Sstevel@tonic-gate * built, these entries will need to be adjusted. 1517c478bd9Sstevel@tonic-gate */ 1527c478bd9Sstevel@tonic-gate #define DT_ADDRRNGLO 0x6ffffe00 1537c478bd9Sstevel@tonic-gate #define DT_CONFIG 0x6ffffefa /* configuration information */ 1547c478bd9Sstevel@tonic-gate #define DT_DEPAUDIT 0x6ffffefb /* dependency auditing */ 1557c478bd9Sstevel@tonic-gate #define DT_AUDIT 0x6ffffefc /* object auditing */ 1567c478bd9Sstevel@tonic-gate #define DT_PLTPAD 0x6ffffefd /* pltpadding (sparcv9) */ 1577c478bd9Sstevel@tonic-gate #define DT_MOVETAB 0x6ffffefe /* move table */ 1587c478bd9Sstevel@tonic-gate #define DT_SYMINFO 0x6ffffeff /* syminfo table */ 1597c478bd9Sstevel@tonic-gate #define DT_ADDRRNGHI 0x6ffffeff 1607c478bd9Sstevel@tonic-gate 1617c478bd9Sstevel@tonic-gate /* 1627c478bd9Sstevel@tonic-gate * The following DT_* entries should have been assigned within one of the 1637c478bd9Sstevel@tonic-gate * DT_* ranges, but existed before such ranges had been established. 1647c478bd9Sstevel@tonic-gate */ 1657c478bd9Sstevel@tonic-gate #define DT_VERSYM 0x6ffffff0 /* version symbol table - unused */ 1667c478bd9Sstevel@tonic-gate 1677c478bd9Sstevel@tonic-gate #define DT_RELACOUNT 0x6ffffff9 /* number of RELATIVE relocations */ 1687c478bd9Sstevel@tonic-gate #define DT_RELCOUNT 0x6ffffffa /* number of RELATIVE relocations */ 1697c478bd9Sstevel@tonic-gate #define DT_FLAGS_1 0x6ffffffb /* state flags - see DF_1_* defs */ 1707c478bd9Sstevel@tonic-gate #define DT_VERDEF 0x6ffffffc /* version definition table and */ 1717c478bd9Sstevel@tonic-gate #define DT_VERDEFNUM 0x6ffffffd /* associated no. of entries */ 1727c478bd9Sstevel@tonic-gate #define DT_VERNEED 0x6ffffffe /* version needed table and */ 1737c478bd9Sstevel@tonic-gate #define DT_VERNEEDNUM 0x6fffffff /* associated no. of entries */ 1747c478bd9Sstevel@tonic-gate 1757c478bd9Sstevel@tonic-gate /* 1767c478bd9Sstevel@tonic-gate * DT_* entries between DT_HIPROC and DT_LOPROC are reserved for processor 1777c478bd9Sstevel@tonic-gate * specific semantics. 1787c478bd9Sstevel@tonic-gate */ 1797c478bd9Sstevel@tonic-gate #define DT_LOPROC 0x70000000 /* processor specific range */ 1807c478bd9Sstevel@tonic-gate #define DT_AUXILIARY 0x7ffffffd /* shared library auxiliary name */ 1817c478bd9Sstevel@tonic-gate #define DT_USED 0x7ffffffe /* ignored - same as needed */ 1827c478bd9Sstevel@tonic-gate #define DT_FILTER 0x7fffffff /* shared library filter name */ 1837c478bd9Sstevel@tonic-gate #define DT_HIPROC 0x7fffffff 1847c478bd9Sstevel@tonic-gate 1857c478bd9Sstevel@tonic-gate 1867c478bd9Sstevel@tonic-gate /* 1877c478bd9Sstevel@tonic-gate * Values for DT_FLAGS 1887c478bd9Sstevel@tonic-gate */ 1897c478bd9Sstevel@tonic-gate #define DF_ORIGIN 0x00000001 /* ORIGIN processing required */ 1907c478bd9Sstevel@tonic-gate #define DF_SYMBOLIC 0x00000002 /* symbolic bindings in effect */ 1917c478bd9Sstevel@tonic-gate #define DF_TEXTREL 0x00000004 /* text relocations remain */ 1927c478bd9Sstevel@tonic-gate #define DF_BIND_NOW 0x00000008 /* process all relocations */ 1937c478bd9Sstevel@tonic-gate #define DF_STATIC_TLS 0x00000010 /* obj. contains static TLS refs */ 1947c478bd9Sstevel@tonic-gate 1957c478bd9Sstevel@tonic-gate /* 1967c478bd9Sstevel@tonic-gate * Values for the DT_POSFLAG_1 .dynamic entry. 1977c478bd9Sstevel@tonic-gate * These values only affect the following DT_* entry. 1987c478bd9Sstevel@tonic-gate */ 1997c478bd9Sstevel@tonic-gate #define DF_P1_LAZYLOAD 0x00000001 /* following object is to be */ 2007c478bd9Sstevel@tonic-gate /* lazy loaded */ 2017c478bd9Sstevel@tonic-gate #define DF_P1_GROUPPERM 0x00000002 /* following object's symbols are */ 2027c478bd9Sstevel@tonic-gate /* not available for general */ 2037c478bd9Sstevel@tonic-gate /* symbol bindings. */ 2047c478bd9Sstevel@tonic-gate /* 2057c478bd9Sstevel@tonic-gate * Values for the DT_FLAGS_1 .dynamic entry. 2067c478bd9Sstevel@tonic-gate */ 2077c478bd9Sstevel@tonic-gate #define DF_1_NOW 0x00000001 /* set RTLD_NOW for this object */ 2087c478bd9Sstevel@tonic-gate #define DF_1_GLOBAL 0x00000002 /* set RTLD_GLOBAL for this object */ 2097c478bd9Sstevel@tonic-gate #define DF_1_GROUP 0x00000004 /* set RTLD_GROUP for this object */ 2107c478bd9Sstevel@tonic-gate #define DF_1_NODELETE 0x00000008 /* set RTLD_NODELETE for this object */ 2117c478bd9Sstevel@tonic-gate #define DF_1_LOADFLTR 0x00000010 /* trigger filtee loading at runtime */ 2127c478bd9Sstevel@tonic-gate #define DF_1_INITFIRST 0x00000020 /* set RTLD_INITFIRST for this object */ 2137c478bd9Sstevel@tonic-gate #define DF_1_NOOPEN 0x00000040 /* set RTLD_NOOPEN for this object */ 2147c478bd9Sstevel@tonic-gate #define DF_1_ORIGIN 0x00000080 /* ORIGIN processing required */ 2157c478bd9Sstevel@tonic-gate #define DF_1_DIRECT 0x00000100 /* direct binding enabled */ 2167c478bd9Sstevel@tonic-gate #define DF_1_TRANS 0x00000200 2177c478bd9Sstevel@tonic-gate #define DF_1_INTERPOSE 0x00000400 /* object is an 'interposer' */ 2187c478bd9Sstevel@tonic-gate #define DF_1_NODEFLIB 0x00000800 /* ignore default library search path */ 2197c478bd9Sstevel@tonic-gate #define DF_1_NODUMP 0x00001000 /* object can't be dldump(3x)'ed */ 2207c478bd9Sstevel@tonic-gate #define DF_1_CONFALT 0x00002000 /* configuration alternative created */ 2217c478bd9Sstevel@tonic-gate #define DF_1_ENDFILTEE 0x00004000 /* filtee terminates filters search */ 2227c478bd9Sstevel@tonic-gate #define DF_1_DISPRELDNE 0x00008000 /* disp reloc applied at build time */ 2237c478bd9Sstevel@tonic-gate #define DF_1_DISPRELPND 0x00010000 /* disp reloc applied at run-time */ 2247c478bd9Sstevel@tonic-gate #define DF_1_NODIRECT 0x00020000 /* object contains symbols that */ 2257c478bd9Sstevel@tonic-gate /* cannot be directly bound to */ 2260bc07c75Srie #define DF_1_IGNMULDEF 0x00040000 /* internal: krtld ignore muldefs */ 2270bc07c75Srie #define DF_1_NOKSYMS 0x00080000 /* internal: don't export object's */ 2280bc07c75Srie /* symbols via /dev/ksyms */ 229*4899432aSab196087 #define DF_1_NOHDR 0x00100000 /* mapfile ?N:1st segment mapping */ 230*4899432aSab196087 /* omits ELF & program headers */ 2310bc07c75Srie #define DF_1_NORELOC 0x00400000 /* internal: unrelocated object */ 2327c478bd9Sstevel@tonic-gate 2337c478bd9Sstevel@tonic-gate /* 234*4899432aSab196087 * Values set to DT_FEATURE_1 tag's d_val. 2357c478bd9Sstevel@tonic-gate */ 2367c478bd9Sstevel@tonic-gate #define DTF_1_PARINIT 0x00000001 /* partially initialization feature */ 2377c478bd9Sstevel@tonic-gate #define DTF_1_CONFEXP 0x00000002 /* configuration file expected */ 2387c478bd9Sstevel@tonic-gate 2397c478bd9Sstevel@tonic-gate 2407c478bd9Sstevel@tonic-gate /* 2417c478bd9Sstevel@tonic-gate * Version structures. There are three types of version structure: 2427c478bd9Sstevel@tonic-gate * 2437c478bd9Sstevel@tonic-gate * o A definition of the versions within the image itself. 2447c478bd9Sstevel@tonic-gate * Each version definition is assigned a unique index (starting from 2457c478bd9Sstevel@tonic-gate * VER_NDX_BGNDEF) which is used to cross-reference symbols associated to 2467c478bd9Sstevel@tonic-gate * the version. Each version can have one or more dependencies on other 2477c478bd9Sstevel@tonic-gate * version definitions within the image. The version name, and any 2487c478bd9Sstevel@tonic-gate * dependency names, are specified in the version definition auxiliary 2497c478bd9Sstevel@tonic-gate * array. Version definition entries require a version symbol index table. 2507c478bd9Sstevel@tonic-gate * 2517c478bd9Sstevel@tonic-gate * o A version requirement on a needed dependency. Each needed entry 2527c478bd9Sstevel@tonic-gate * specifies the shared object dependency (as specified in DT_NEEDED). 2537c478bd9Sstevel@tonic-gate * One or more versions required from this dependency are specified in the 2547c478bd9Sstevel@tonic-gate * version needed auxiliary array. 2557c478bd9Sstevel@tonic-gate * 2567c478bd9Sstevel@tonic-gate * o A version symbol index table. Each symbol indexes into this array 2577c478bd9Sstevel@tonic-gate * to determine its version index. Index values of VER_NDX_BGNDEF or 2587c478bd9Sstevel@tonic-gate * greater indicate the version definition to which a symbol is associated. 2597c478bd9Sstevel@tonic-gate * (the size of a symbol index entry is recorded in the sh_info field). 2607c478bd9Sstevel@tonic-gate */ 2617c478bd9Sstevel@tonic-gate #ifndef _ASM 2627c478bd9Sstevel@tonic-gate 2637c478bd9Sstevel@tonic-gate typedef struct { /* Version Definition Structure. */ 2647c478bd9Sstevel@tonic-gate Elf32_Half vd_version; /* this structures version revision */ 2657c478bd9Sstevel@tonic-gate Elf32_Half vd_flags; /* version information */ 2667c478bd9Sstevel@tonic-gate Elf32_Half vd_ndx; /* version index */ 2677c478bd9Sstevel@tonic-gate Elf32_Half vd_cnt; /* no. of associated aux entries */ 2687c478bd9Sstevel@tonic-gate Elf32_Word vd_hash; /* version name hash value */ 2697c478bd9Sstevel@tonic-gate Elf32_Word vd_aux; /* no. of bytes from start of this */ 2707c478bd9Sstevel@tonic-gate /* verdef to verdaux array */ 2717c478bd9Sstevel@tonic-gate Elf32_Word vd_next; /* no. of bytes from start of this */ 2727c478bd9Sstevel@tonic-gate } Elf32_Verdef; /* verdef to next verdef entry */ 2737c478bd9Sstevel@tonic-gate 2747c478bd9Sstevel@tonic-gate typedef struct { /* Verdef Auxiliary Structure. */ 2757c478bd9Sstevel@tonic-gate Elf32_Word vda_name; /* first element defines the version */ 2767c478bd9Sstevel@tonic-gate /* name. Additional entries */ 2777c478bd9Sstevel@tonic-gate /* define dependency names. */ 2787c478bd9Sstevel@tonic-gate Elf32_Word vda_next; /* no. of bytes from start of this */ 2797c478bd9Sstevel@tonic-gate } Elf32_Verdaux; /* verdaux to next verdaux entry */ 2807c478bd9Sstevel@tonic-gate 2817c478bd9Sstevel@tonic-gate 2827c478bd9Sstevel@tonic-gate typedef struct { /* Version Requirement Structure. */ 2837c478bd9Sstevel@tonic-gate Elf32_Half vn_version; /* this structures version revision */ 2847c478bd9Sstevel@tonic-gate Elf32_Half vn_cnt; /* no. of associated aux entries */ 2857c478bd9Sstevel@tonic-gate Elf32_Word vn_file; /* name of needed dependency (file) */ 2867c478bd9Sstevel@tonic-gate Elf32_Word vn_aux; /* no. of bytes from start of this */ 2877c478bd9Sstevel@tonic-gate /* verneed to vernaux array */ 2887c478bd9Sstevel@tonic-gate Elf32_Word vn_next; /* no. of bytes from start of this */ 2897c478bd9Sstevel@tonic-gate } Elf32_Verneed; /* verneed to next verneed entry */ 2907c478bd9Sstevel@tonic-gate 2917c478bd9Sstevel@tonic-gate typedef struct { /* Verneed Auxiliary Structure. */ 2927c478bd9Sstevel@tonic-gate Elf32_Word vna_hash; /* version name hash value */ 2937c478bd9Sstevel@tonic-gate Elf32_Half vna_flags; /* version information */ 2947c478bd9Sstevel@tonic-gate Elf32_Half vna_other; 2957c478bd9Sstevel@tonic-gate Elf32_Word vna_name; /* version name */ 2967c478bd9Sstevel@tonic-gate Elf32_Word vna_next; /* no. of bytes from start of this */ 2977c478bd9Sstevel@tonic-gate } Elf32_Vernaux; /* vernaux to next vernaux entry */ 2987c478bd9Sstevel@tonic-gate 2997c478bd9Sstevel@tonic-gate typedef Elf32_Half Elf32_Versym; /* Version symbol index array */ 3007c478bd9Sstevel@tonic-gate 3017c478bd9Sstevel@tonic-gate typedef struct { 3027c478bd9Sstevel@tonic-gate Elf32_Half si_boundto; /* direct bindings - symbol bound to */ 3037c478bd9Sstevel@tonic-gate Elf32_Half si_flags; /* per symbol flags */ 3047c478bd9Sstevel@tonic-gate } Elf32_Syminfo; 3057c478bd9Sstevel@tonic-gate 3067c478bd9Sstevel@tonic-gate 3077c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_LONGLONG_TYPE) 3087c478bd9Sstevel@tonic-gate typedef struct { 3097c478bd9Sstevel@tonic-gate Elf64_Half vd_version; /* this structures version revision */ 3107c478bd9Sstevel@tonic-gate Elf64_Half vd_flags; /* version information */ 3117c478bd9Sstevel@tonic-gate Elf64_Half vd_ndx; /* version index */ 3127c478bd9Sstevel@tonic-gate Elf64_Half vd_cnt; /* no. of associated aux entries */ 3137c478bd9Sstevel@tonic-gate Elf64_Word vd_hash; /* version name hash value */ 3147c478bd9Sstevel@tonic-gate Elf64_Word vd_aux; /* no. of bytes from start of this */ 3157c478bd9Sstevel@tonic-gate /* verdef to verdaux array */ 3167c478bd9Sstevel@tonic-gate Elf64_Word vd_next; /* no. of bytes from start of this */ 3177c478bd9Sstevel@tonic-gate } Elf64_Verdef; /* verdef to next verdef entry */ 3187c478bd9Sstevel@tonic-gate 3197c478bd9Sstevel@tonic-gate typedef struct { 3207c478bd9Sstevel@tonic-gate Elf64_Word vda_name; /* first element defines the version */ 3217c478bd9Sstevel@tonic-gate /* name. Additional entries */ 3227c478bd9Sstevel@tonic-gate /* define dependency names. */ 3237c478bd9Sstevel@tonic-gate Elf64_Word vda_next; /* no. of bytes from start of this */ 3247c478bd9Sstevel@tonic-gate } Elf64_Verdaux; /* verdaux to next verdaux entry */ 3257c478bd9Sstevel@tonic-gate 3267c478bd9Sstevel@tonic-gate typedef struct { 3277c478bd9Sstevel@tonic-gate Elf64_Half vn_version; /* this structures version revision */ 3287c478bd9Sstevel@tonic-gate Elf64_Half vn_cnt; /* no. of associated aux entries */ 3297c478bd9Sstevel@tonic-gate Elf64_Word vn_file; /* name of needed dependency (file) */ 3307c478bd9Sstevel@tonic-gate Elf64_Word vn_aux; /* no. of bytes from start of this */ 3317c478bd9Sstevel@tonic-gate /* verneed to vernaux array */ 3327c478bd9Sstevel@tonic-gate Elf64_Word vn_next; /* no. of bytes from start of this */ 3337c478bd9Sstevel@tonic-gate } Elf64_Verneed; /* verneed to next verneed entry */ 3347c478bd9Sstevel@tonic-gate 3357c478bd9Sstevel@tonic-gate typedef struct { 3367c478bd9Sstevel@tonic-gate Elf64_Word vna_hash; /* version name hash value */ 3377c478bd9Sstevel@tonic-gate Elf64_Half vna_flags; /* version information */ 3387c478bd9Sstevel@tonic-gate Elf64_Half vna_other; 3397c478bd9Sstevel@tonic-gate Elf64_Word vna_name; /* version name */ 3407c478bd9Sstevel@tonic-gate Elf64_Word vna_next; /* no. of bytes from start of this */ 3417c478bd9Sstevel@tonic-gate } Elf64_Vernaux; /* vernaux to next vernaux entry */ 3427c478bd9Sstevel@tonic-gate 3437c478bd9Sstevel@tonic-gate typedef Elf64_Half Elf64_Versym; 3447c478bd9Sstevel@tonic-gate 3457c478bd9Sstevel@tonic-gate typedef struct { 3467c478bd9Sstevel@tonic-gate Elf64_Half si_boundto; /* direct bindings - symbol bound to */ 3477c478bd9Sstevel@tonic-gate Elf64_Half si_flags; /* per symbol flags */ 3487c478bd9Sstevel@tonic-gate } Elf64_Syminfo; 3497c478bd9Sstevel@tonic-gate #endif /* defined(_LP64) || defined(_LONGLONG_TYPE) */ 3507c478bd9Sstevel@tonic-gate 3517c478bd9Sstevel@tonic-gate #endif /* _ASM */ 3527c478bd9Sstevel@tonic-gate 3537c478bd9Sstevel@tonic-gate /* 3547c478bd9Sstevel@tonic-gate * Versym symbol index values. Values greater than VER_NDX_GLOBAL 3557c478bd9Sstevel@tonic-gate * and less then VER_NDX_LORESERVE associate symbols with user 3567c478bd9Sstevel@tonic-gate * specified version descriptors. 3577c478bd9Sstevel@tonic-gate */ 3587c478bd9Sstevel@tonic-gate #define VER_NDX_LOCAL 0 /* symbol is local */ 3597c478bd9Sstevel@tonic-gate #define VER_NDX_GLOBAL 1 /* symbol is global and assigned to */ 3607c478bd9Sstevel@tonic-gate /* the base version */ 3617c478bd9Sstevel@tonic-gate #define VER_NDX_LORESERVE 0xff00 /* beginning of RESERVED entries */ 3627c478bd9Sstevel@tonic-gate #define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */ 3637c478bd9Sstevel@tonic-gate 3647c478bd9Sstevel@tonic-gate /* 3657c478bd9Sstevel@tonic-gate * Verdef and Verneed (via Veraux) flags values. 3667c478bd9Sstevel@tonic-gate */ 3677c478bd9Sstevel@tonic-gate #define VER_FLG_BASE 0x1 /* version definition of file itself */ 3687c478bd9Sstevel@tonic-gate #define VER_FLG_WEAK 0x2 /* weak version identifier */ 3697c478bd9Sstevel@tonic-gate 3707c478bd9Sstevel@tonic-gate /* 3717c478bd9Sstevel@tonic-gate * Verdef version values. 3727c478bd9Sstevel@tonic-gate */ 3737c478bd9Sstevel@tonic-gate #define VER_DEF_NONE 0 /* Ver_def version */ 3747c478bd9Sstevel@tonic-gate #define VER_DEF_CURRENT 1 3757c478bd9Sstevel@tonic-gate #define VER_DEF_NUM 2 3767c478bd9Sstevel@tonic-gate 3777c478bd9Sstevel@tonic-gate /* 3787c478bd9Sstevel@tonic-gate * Verneed version values. 3797c478bd9Sstevel@tonic-gate */ 3807c478bd9Sstevel@tonic-gate #define VER_NEED_NONE 0 /* Ver_need version */ 3817c478bd9Sstevel@tonic-gate #define VER_NEED_CURRENT 1 3827c478bd9Sstevel@tonic-gate #define VER_NEED_NUM 2 3837c478bd9Sstevel@tonic-gate 3847c478bd9Sstevel@tonic-gate 3857c478bd9Sstevel@tonic-gate /* 3867c478bd9Sstevel@tonic-gate * Syminfo flag values 3877c478bd9Sstevel@tonic-gate */ 3887c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association */ 3897c478bd9Sstevel@tonic-gate /* to object containing defn. */ 3907c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */ 3917c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ 3927c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be */ 3937c478bd9Sstevel@tonic-gate /* lazily-loaded */ 3947c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to */ 3957c478bd9Sstevel@tonic-gate /* object containing defn. */ 3967c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference */ 3977c478bd9Sstevel@tonic-gate /* directly bind to this symbol */ 3987c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ 3997c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */ 4007c478bd9Sstevel@tonic-gate 4017c478bd9Sstevel@tonic-gate /* 4027c478bd9Sstevel@tonic-gate * Syminfo.si_boundto values. 4037c478bd9Sstevel@tonic-gate */ 4047c478bd9Sstevel@tonic-gate #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ 4057c478bd9Sstevel@tonic-gate #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ 4067c478bd9Sstevel@tonic-gate #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ 4077c478bd9Sstevel@tonic-gate #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ 4087c478bd9Sstevel@tonic-gate #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ 4097c478bd9Sstevel@tonic-gate 4107c478bd9Sstevel@tonic-gate /* 4117c478bd9Sstevel@tonic-gate * Syminfo version values. 4127c478bd9Sstevel@tonic-gate */ 4137c478bd9Sstevel@tonic-gate #define SYMINFO_NONE 0 /* Syminfo version */ 4147c478bd9Sstevel@tonic-gate #define SYMINFO_CURRENT 1 4157c478bd9Sstevel@tonic-gate #define SYMINFO_NUM 2 4167c478bd9Sstevel@tonic-gate 4177c478bd9Sstevel@tonic-gate 4187c478bd9Sstevel@tonic-gate /* 4197c478bd9Sstevel@tonic-gate * Public structure defined and maintained within the runtime linker 4207c478bd9Sstevel@tonic-gate */ 4217c478bd9Sstevel@tonic-gate #ifndef _ASM 4227c478bd9Sstevel@tonic-gate 4237c478bd9Sstevel@tonic-gate typedef struct link_map Link_map; 4247c478bd9Sstevel@tonic-gate 4257c478bd9Sstevel@tonic-gate struct link_map { 4267c478bd9Sstevel@tonic-gate unsigned long l_addr; /* address at which object is mapped */ 4277c478bd9Sstevel@tonic-gate char *l_name; /* full name of loaded object */ 4287c478bd9Sstevel@tonic-gate #ifdef _LP64 4297c478bd9Sstevel@tonic-gate Elf64_Dyn *l_ld; /* dynamic structure of object */ 4307c478bd9Sstevel@tonic-gate #else 4317c478bd9Sstevel@tonic-gate Elf32_Dyn *l_ld; /* dynamic structure of object */ 4327c478bd9Sstevel@tonic-gate #endif 4337c478bd9Sstevel@tonic-gate Link_map *l_next; /* next link object */ 4347c478bd9Sstevel@tonic-gate Link_map *l_prev; /* previous link object */ 4357c478bd9Sstevel@tonic-gate char *l_refname; /* filters reference name */ 4367c478bd9Sstevel@tonic-gate }; 4377c478bd9Sstevel@tonic-gate 4387c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32 4397c478bd9Sstevel@tonic-gate typedef struct link_map32 Link_map32; 4407c478bd9Sstevel@tonic-gate 4417c478bd9Sstevel@tonic-gate struct link_map32 { 4427c478bd9Sstevel@tonic-gate Elf32_Word l_addr; 4437c478bd9Sstevel@tonic-gate Elf32_Addr l_name; 4447c478bd9Sstevel@tonic-gate Elf32_Addr l_ld; 4457c478bd9Sstevel@tonic-gate Elf32_Addr l_next; 4467c478bd9Sstevel@tonic-gate Elf32_Addr l_prev; 4477c478bd9Sstevel@tonic-gate Elf32_Addr l_refname; 4487c478bd9Sstevel@tonic-gate }; 4497c478bd9Sstevel@tonic-gate #endif 4507c478bd9Sstevel@tonic-gate 4517c478bd9Sstevel@tonic-gate typedef enum { 4527c478bd9Sstevel@tonic-gate RT_CONSISTENT, 4537c478bd9Sstevel@tonic-gate RT_ADD, 4547c478bd9Sstevel@tonic-gate RT_DELETE 4557c478bd9Sstevel@tonic-gate } r_state_e; 4567c478bd9Sstevel@tonic-gate 4577c478bd9Sstevel@tonic-gate typedef enum { 4587c478bd9Sstevel@tonic-gate RD_FL_NONE = 0, /* no flags */ 4597c478bd9Sstevel@tonic-gate RD_FL_ODBG = (1<<0), /* old style debugger present */ 4607c478bd9Sstevel@tonic-gate RD_FL_DBG = (1<<1) /* debugging enabled */ 4617c478bd9Sstevel@tonic-gate } rd_flags_e; 4627c478bd9Sstevel@tonic-gate 4637c478bd9Sstevel@tonic-gate 4647c478bd9Sstevel@tonic-gate 4657c478bd9Sstevel@tonic-gate /* 4667c478bd9Sstevel@tonic-gate * Debugging events enabled inside of the runtime linker. To 4677c478bd9Sstevel@tonic-gate * access these events see the librtld_db interface. 4687c478bd9Sstevel@tonic-gate */ 4697c478bd9Sstevel@tonic-gate typedef enum { 4707c478bd9Sstevel@tonic-gate RD_NONE = 0, /* no event */ 4717c478bd9Sstevel@tonic-gate RD_PREINIT, /* the Initial rendezvous before .init */ 4727c478bd9Sstevel@tonic-gate RD_POSTINIT, /* the Second rendezvous after .init */ 4737c478bd9Sstevel@tonic-gate RD_DLACTIVITY /* a dlopen or dlclose has happened */ 4747c478bd9Sstevel@tonic-gate } rd_event_e; 4757c478bd9Sstevel@tonic-gate 4767c478bd9Sstevel@tonic-gate struct r_debug { 4777c478bd9Sstevel@tonic-gate int r_version; /* debugging info version no. */ 4787c478bd9Sstevel@tonic-gate Link_map *r_map; /* address of link_map */ 4797c478bd9Sstevel@tonic-gate unsigned long r_brk; /* address of update routine */ 4807c478bd9Sstevel@tonic-gate r_state_e r_state; 4817c478bd9Sstevel@tonic-gate unsigned long r_ldbase; /* base addr of ld.so */ 4827c478bd9Sstevel@tonic-gate Link_map *r_ldsomap; /* address of ld.so.1's link map */ 4837c478bd9Sstevel@tonic-gate rd_event_e r_rdevent; /* debug event */ 4847c478bd9Sstevel@tonic-gate rd_flags_e r_flags; /* misc flags. */ 4857c478bd9Sstevel@tonic-gate }; 4867c478bd9Sstevel@tonic-gate 4877c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32 4887c478bd9Sstevel@tonic-gate struct r_debug32 { 4897c478bd9Sstevel@tonic-gate Elf32_Word r_version; /* debugging info version no. */ 4907c478bd9Sstevel@tonic-gate Elf32_Addr r_map; /* address of link_map */ 4917c478bd9Sstevel@tonic-gate Elf32_Word r_brk; /* address of update routine */ 4927c478bd9Sstevel@tonic-gate r_state_e r_state; 4937c478bd9Sstevel@tonic-gate Elf32_Word r_ldbase; /* base addr of ld.so */ 4947c478bd9Sstevel@tonic-gate Elf32_Addr r_ldsomap; /* address of ld.so.1's link map */ 4957c478bd9Sstevel@tonic-gate rd_event_e r_rdevent; /* debug event */ 4967c478bd9Sstevel@tonic-gate rd_flags_e r_flags; /* misc flags. */ 4977c478bd9Sstevel@tonic-gate }; 4987c478bd9Sstevel@tonic-gate #endif 4997c478bd9Sstevel@tonic-gate 5007c478bd9Sstevel@tonic-gate 5017c478bd9Sstevel@tonic-gate #define R_DEBUG_VERSION 2 /* current r_debug version */ 5027c478bd9Sstevel@tonic-gate #endif /* _ASM */ 5037c478bd9Sstevel@tonic-gate 5047c478bd9Sstevel@tonic-gate /* 5057c478bd9Sstevel@tonic-gate * Attribute/value structures used to bootstrap ELF-based dynamic linker. 5067c478bd9Sstevel@tonic-gate */ 5077c478bd9Sstevel@tonic-gate #ifndef _ASM 5087c478bd9Sstevel@tonic-gate typedef struct { 5097c478bd9Sstevel@tonic-gate Elf32_Sword eb_tag; /* what this one is */ 5107c478bd9Sstevel@tonic-gate union { /* possible values */ 5117c478bd9Sstevel@tonic-gate Elf32_Word eb_val; 5127c478bd9Sstevel@tonic-gate Elf32_Addr eb_ptr; 5137c478bd9Sstevel@tonic-gate Elf32_Off eb_off; 5147c478bd9Sstevel@tonic-gate } eb_un; 5157c478bd9Sstevel@tonic-gate } Elf32_Boot; 5167c478bd9Sstevel@tonic-gate 5177c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_LONGLONG_TYPE) 5187c478bd9Sstevel@tonic-gate typedef struct { 5197c478bd9Sstevel@tonic-gate Elf64_Xword eb_tag; /* what this one is */ 5207c478bd9Sstevel@tonic-gate union { /* possible values */ 5217c478bd9Sstevel@tonic-gate Elf64_Xword eb_val; 5227c478bd9Sstevel@tonic-gate Elf64_Addr eb_ptr; 5237c478bd9Sstevel@tonic-gate Elf64_Off eb_off; 5247c478bd9Sstevel@tonic-gate } eb_un; 5257c478bd9Sstevel@tonic-gate } Elf64_Boot; 5267c478bd9Sstevel@tonic-gate #endif /* defined(_LP64) || defined(_LONGLONG_TYPE) */ 5277c478bd9Sstevel@tonic-gate #endif /* _ASM */ 5287c478bd9Sstevel@tonic-gate 5297c478bd9Sstevel@tonic-gate /* 5307c478bd9Sstevel@tonic-gate * Attributes 5317c478bd9Sstevel@tonic-gate */ 5327c478bd9Sstevel@tonic-gate #define EB_NULL 0 /* (void) last entry */ 5337c478bd9Sstevel@tonic-gate #define EB_DYNAMIC 1 /* (*) dynamic structure of subject */ 5347c478bd9Sstevel@tonic-gate #define EB_LDSO_BASE 2 /* (caddr_t) base address of ld.so */ 5357c478bd9Sstevel@tonic-gate #define EB_ARGV 3 /* (caddr_t) argument vector */ 5367c478bd9Sstevel@tonic-gate #define EB_ENVP 4 /* (char **) environment strings */ 5377c478bd9Sstevel@tonic-gate #define EB_AUXV 5 /* (auxv_t *) auxiliary vector */ 5387c478bd9Sstevel@tonic-gate #define EB_DEVZERO 6 /* (int) fd for /dev/zero */ 5397c478bd9Sstevel@tonic-gate #define EB_PAGESIZE 7 /* (int) page size */ 5407c478bd9Sstevel@tonic-gate #define EB_MAX 8 /* number of "EBs" */ 5417c478bd9Sstevel@tonic-gate #define EB_MAX_SIZE32 64 /* size in bytes, _ILP32 */ 5427c478bd9Sstevel@tonic-gate #define EB_MAX_SIZE64 128 /* size in bytes, _LP64 */ 5437c478bd9Sstevel@tonic-gate 5447c478bd9Sstevel@tonic-gate 5457c478bd9Sstevel@tonic-gate #ifndef _ASM 5467c478bd9Sstevel@tonic-gate 5477c478bd9Sstevel@tonic-gate #ifdef __STDC__ 5487c478bd9Sstevel@tonic-gate 5497c478bd9Sstevel@tonic-gate /* 5507c478bd9Sstevel@tonic-gate * Concurrency communication structure for libc callbacks. 5517c478bd9Sstevel@tonic-gate */ 5527c478bd9Sstevel@tonic-gate extern void _ld_libc(void *); 5537c478bd9Sstevel@tonic-gate #else /* __STDC__ */ 5547c478bd9Sstevel@tonic-gate extern void _ld_libc(); 5557c478bd9Sstevel@tonic-gate #endif /* __STDC__ */ 5567c478bd9Sstevel@tonic-gate 5577c478bd9Sstevel@tonic-gate #pragma unknown_control_flow(_ld_libc) 5587c478bd9Sstevel@tonic-gate #endif /* _ASM */ 5597c478bd9Sstevel@tonic-gate 5607c478bd9Sstevel@tonic-gate #ifdef __cplusplus 5617c478bd9Sstevel@tonic-gate } 5627c478bd9Sstevel@tonic-gate #endif 5637c478bd9Sstevel@tonic-gate 5647c478bd9Sstevel@tonic-gate #endif /* _SYS_LINK_H */ 565