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 * 267e16fca0SAli Bahrami * Copyright 2009 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 #ifndef _ASM 347c478bd9Sstevel@tonic-gate #include <sys/types.h> 357c478bd9Sstevel@tonic-gate #include <sys/elftypes.h> 367c478bd9Sstevel@tonic-gate #endif 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate #ifdef __cplusplus 397c478bd9Sstevel@tonic-gate extern "C" { 407c478bd9Sstevel@tonic-gate #endif 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate /* 437c478bd9Sstevel@tonic-gate * Communication structures for the runtime linker. 447c478bd9Sstevel@tonic-gate */ 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate /* 477c478bd9Sstevel@tonic-gate * The following data structure provides a self-identifying union consisting 487c478bd9Sstevel@tonic-gate * of a tag from a known list and a value. 497c478bd9Sstevel@tonic-gate */ 507c478bd9Sstevel@tonic-gate #ifndef _ASM 517c478bd9Sstevel@tonic-gate typedef struct { 527c478bd9Sstevel@tonic-gate Elf32_Sword d_tag; /* how to interpret value */ 537c478bd9Sstevel@tonic-gate union { 547c478bd9Sstevel@tonic-gate Elf32_Word d_val; 557c478bd9Sstevel@tonic-gate Elf32_Addr d_ptr; 567c478bd9Sstevel@tonic-gate Elf32_Off d_off; 577c478bd9Sstevel@tonic-gate } d_un; 587c478bd9Sstevel@tonic-gate } Elf32_Dyn; 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_LONGLONG_TYPE) 617c478bd9Sstevel@tonic-gate typedef struct { 627c478bd9Sstevel@tonic-gate Elf64_Xword d_tag; /* how to interpret value */ 637c478bd9Sstevel@tonic-gate union { 647c478bd9Sstevel@tonic-gate Elf64_Xword d_val; 657c478bd9Sstevel@tonic-gate Elf64_Addr d_ptr; 667c478bd9Sstevel@tonic-gate } d_un; 677c478bd9Sstevel@tonic-gate } Elf64_Dyn; 687c478bd9Sstevel@tonic-gate #endif /* defined(_LP64) || defined(_LONGLONG_TYPE) */ 697c478bd9Sstevel@tonic-gate #endif /* _ASM */ 707c478bd9Sstevel@tonic-gate 717c478bd9Sstevel@tonic-gate /* 727c478bd9Sstevel@tonic-gate * Tag values 737c478bd9Sstevel@tonic-gate */ 747c478bd9Sstevel@tonic-gate #define DT_NULL 0 /* last entry in list */ 757c478bd9Sstevel@tonic-gate #define DT_NEEDED 1 /* a needed object */ 767c478bd9Sstevel@tonic-gate #define DT_PLTRELSZ 2 /* size of relocations for the PLT */ 777c478bd9Sstevel@tonic-gate #define DT_PLTGOT 3 /* addresses used by procedure linkage table */ 787c478bd9Sstevel@tonic-gate #define DT_HASH 4 /* hash table */ 797c478bd9Sstevel@tonic-gate #define DT_STRTAB 5 /* string table */ 807c478bd9Sstevel@tonic-gate #define DT_SYMTAB 6 /* symbol table */ 817c478bd9Sstevel@tonic-gate #define DT_RELA 7 /* addr of relocation entries */ 827c478bd9Sstevel@tonic-gate #define DT_RELASZ 8 /* size of relocation table */ 837c478bd9Sstevel@tonic-gate #define DT_RELAENT 9 /* base size of relocation entry */ 847c478bd9Sstevel@tonic-gate #define DT_STRSZ 10 /* size of string table */ 857c478bd9Sstevel@tonic-gate #define DT_SYMENT 11 /* size of symbol table entry */ 867c478bd9Sstevel@tonic-gate #define DT_INIT 12 /* _init addr */ 877c478bd9Sstevel@tonic-gate #define DT_FINI 13 /* _fini addr */ 887c478bd9Sstevel@tonic-gate #define DT_SONAME 14 /* name of this shared object */ 897c478bd9Sstevel@tonic-gate #define DT_RPATH 15 /* run-time search path */ 907c478bd9Sstevel@tonic-gate #define DT_SYMBOLIC 16 /* shared object linked -Bsymbolic */ 917c478bd9Sstevel@tonic-gate #define DT_REL 17 /* addr of relocation entries */ 927c478bd9Sstevel@tonic-gate #define DT_RELSZ 18 /* size of relocation table */ 937c478bd9Sstevel@tonic-gate #define DT_RELENT 19 /* base size of relocation entry */ 947c478bd9Sstevel@tonic-gate #define DT_PLTREL 20 /* relocation type for PLT entry */ 957c478bd9Sstevel@tonic-gate #define DT_DEBUG 21 /* pointer to r_debug structure */ 967c478bd9Sstevel@tonic-gate #define DT_TEXTREL 22 /* text relocations remain for this object */ 977c478bd9Sstevel@tonic-gate #define DT_JMPREL 23 /* pointer to the PLT relocation entries */ 987c478bd9Sstevel@tonic-gate #define DT_BIND_NOW 24 /* perform all relocations at load of object */ 997c478bd9Sstevel@tonic-gate #define DT_INIT_ARRAY 25 /* pointer to .initarray */ 1007c478bd9Sstevel@tonic-gate #define DT_FINI_ARRAY 26 /* pointer to .finiarray */ 1017c478bd9Sstevel@tonic-gate #define DT_INIT_ARRAYSZ 27 /* size of .initarray */ 1027c478bd9Sstevel@tonic-gate #define DT_FINI_ARRAYSZ 28 /* size of .finiarray */ 1037c478bd9Sstevel@tonic-gate #define DT_RUNPATH 29 /* run-time search path */ 1047c478bd9Sstevel@tonic-gate #define DT_FLAGS 30 /* state flags - see DF_* */ 1057c478bd9Sstevel@tonic-gate 106d579eb63Sab196087 /* 107d579eb63Sab196087 * DT_* encoding rules: The value of each dynamic tag determines the 108d579eb63Sab196087 * interpretation of the d_un union. This convention provides for simpler 109d579eb63Sab196087 * interpretation of dynamic tags by external tools. A tag whose value 110d579eb63Sab196087 * is an even number indicates a dynamic section entry that uses d_ptr. 111d579eb63Sab196087 * A tag whose value is an odd number indicates a dynamic section entry 112d579eb63Sab196087 * that uses d_val, or that uses neither d_ptr nor d_val. 113d579eb63Sab196087 * 114d579eb63Sab196087 * There are exceptions to the above rule: 115d579eb63Sab196087 * - Tags with values that are less than DT_ENCODING. 116d579eb63Sab196087 * - Tags with values that fall between DT_LOOS and DT_SUNW_ENCODING 117d579eb63Sab196087 * - Tags with values that fall between DT_HIOS and DT_LOPROC 118d579eb63Sab196087 * 119d579eb63Sab196087 * Third party tools must handle these exception ranges explicitly 120d579eb63Sab196087 * on an item by item basis. 121d579eb63Sab196087 */ 122d579eb63Sab196087 #define DT_ENCODING 32 /* positive tag DT_* encoding rules */ 123d579eb63Sab196087 /* start after this */ 1247c478bd9Sstevel@tonic-gate #define DT_PREINIT_ARRAY 32 /* pointer to .preinitarray segment */ 1257c478bd9Sstevel@tonic-gate #define DT_PREINIT_ARRAYSZ 33 /* size of .preinitarray segment */ 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate #define DT_MAXPOSTAGS 34 /* number of positive tags */ 1287c478bd9Sstevel@tonic-gate 129d579eb63Sab196087 /* 130d579eb63Sab196087 * DT_* encoding rules do not apply between DT_LOOS and DT_SUNW_ENCODING 131d579eb63Sab196087 */ 1327c478bd9Sstevel@tonic-gate #define DT_LOOS 0x6000000d /* OS specific range */ 1337c478bd9Sstevel@tonic-gate #define DT_SUNW_AUXILIARY 0x6000000d /* symbol auxiliary name */ 1347c478bd9Sstevel@tonic-gate #define DT_SUNW_RTLDINF 0x6000000e /* ld.so.1 info (private) */ 1357c478bd9Sstevel@tonic-gate #define DT_SUNW_FILTER 0x6000000f /* symbol filter name */ 1367c478bd9Sstevel@tonic-gate #define DT_SUNW_CAP 0x60000010 /* hardware/software */ 1377c478bd9Sstevel@tonic-gate /* capabilities */ 1389039eeafSab196087 #define DT_SUNW_SYMTAB 0x60000011 /* symtab with local fcn */ 1399039eeafSab196087 /* symbols immediately */ 1409039eeafSab196087 /* preceding DT_SYMTAB */ 141d579eb63Sab196087 #define DT_SUNW_SYMSZ 0x60000012 /* Size of SUNW_SYMTAB table */ 142d579eb63Sab196087 143d579eb63Sab196087 /* 144d579eb63Sab196087 * DT_* encoding rules apply between DT_SUNW_ENCODING and DT_HIOS 145d579eb63Sab196087 */ 146d579eb63Sab196087 #define DT_SUNW_ENCODING 0x60000013 /* DT_* encoding rules resume */ 147d579eb63Sab196087 /* after this */ 148*4f680cc6SAli Bahrami #define DT_SUNW_SORTENT 0x60000013 /* sizeof [SYM|TLS]SORT entry */ 149d579eb63Sab196087 #define DT_SUNW_SYMSORT 0x60000014 /* sym indices sorted by addr */ 150d579eb63Sab196087 #define DT_SUNW_SYMSORTSZ 0x60000015 /* size of SUNW_SYMSORT */ 151d579eb63Sab196087 #define DT_SUNW_TLSSORT 0x60000016 /* tls sym ndx sort by offset */ 152d579eb63Sab196087 #define DT_SUNW_TLSSORTSZ 0x60000017 /* size of SUNW_TLSSORT */ 153d579eb63Sab196087 1543244bcaaSab196087 #define DT_SUNW_STRPAD 0x60000019 /* # of unused bytes at the */ 1553244bcaaSab196087 /* end of dynstr */ 156ba2be530Sab196087 #define DT_SUNW_LDMACH 0x6000001b /* EM_ machine code of linker */ 157ba2be530Sab196087 /* that produced object */ 1583244bcaaSab196087 159d579eb63Sab196087 /* 160d579eb63Sab196087 * DT_* encoding rules do not apply between DT_HIOS and DT_LOPROC 161d579eb63Sab196087 */ 1627c478bd9Sstevel@tonic-gate #define DT_HIOS 0x6ffff000 1637c478bd9Sstevel@tonic-gate 1647c478bd9Sstevel@tonic-gate /* 1657c478bd9Sstevel@tonic-gate * The following values have been deprecated and remain here to allow 1667c478bd9Sstevel@tonic-gate * compatibility with older binaries. 1677c478bd9Sstevel@tonic-gate */ 1687c478bd9Sstevel@tonic-gate #define DT_DEPRECATED_SPARC_REGISTER 0x7000001 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate /* 1717c478bd9Sstevel@tonic-gate * DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the 1727c478bd9Sstevel@tonic-gate * Dyn.d_un.d_val field of the Elf*_Dyn structure. 1737c478bd9Sstevel@tonic-gate */ 1747c478bd9Sstevel@tonic-gate #define DT_VALRNGLO 0x6ffffd00 1757e16fca0SAli Bahrami 1767e16fca0SAli Bahrami #define DT_GNU_PRELINKED 0x6ffffdf5 /* prelinking timestamp (unused) */ 1777e16fca0SAli Bahrami #define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* size of conflict section (unused) */ 1787e16fca0SAli Bahrami #define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* size of library list (unused) */ 1797c478bd9Sstevel@tonic-gate #define DT_CHECKSUM 0x6ffffdf8 /* elf checksum */ 1807c478bd9Sstevel@tonic-gate #define DT_PLTPADSZ 0x6ffffdf9 /* pltpadding size */ 1817c478bd9Sstevel@tonic-gate #define DT_MOVEENT 0x6ffffdfa /* move table entry size */ 1827c478bd9Sstevel@tonic-gate #define DT_MOVESZ 0x6ffffdfb /* move table size */ 1837c478bd9Sstevel@tonic-gate #define DT_FEATURE_1 0x6ffffdfc /* feature holder */ 1847c478bd9Sstevel@tonic-gate #define DT_POSFLAG_1 0x6ffffdfd /* flags for DT_* entries, effecting */ 1857c478bd9Sstevel@tonic-gate /* the following DT_* entry. */ 1867c478bd9Sstevel@tonic-gate /* See DF_P1_* definitions */ 1877c478bd9Sstevel@tonic-gate #define DT_SYMINSZ 0x6ffffdfe /* syminfo table size (in bytes) */ 1887c478bd9Sstevel@tonic-gate #define DT_SYMINENT 0x6ffffdff /* syminfo entry size (in bytes) */ 1897c478bd9Sstevel@tonic-gate #define DT_VALRNGHI 0x6ffffdff 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate /* 1927c478bd9Sstevel@tonic-gate * DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the 1937c478bd9Sstevel@tonic-gate * Dyn.d_un.d_ptr field of the Elf*_Dyn structure. 1947c478bd9Sstevel@tonic-gate * 1957c478bd9Sstevel@tonic-gate * If any adjustment is made to the ELF object after it has been 1967c478bd9Sstevel@tonic-gate * built, these entries will need to be adjusted. 1977c478bd9Sstevel@tonic-gate */ 1987c478bd9Sstevel@tonic-gate #define DT_ADDRRNGLO 0x6ffffe00 1997e16fca0SAli Bahrami 2007e16fca0SAli Bahrami #define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table (unused) */ 2017e16fca0SAli Bahrami #define DT_TLSDESC_PLT 0x6ffffef6 /* GNU (unused) */ 2027e16fca0SAli Bahrami #define DT_TLSDESC_GOT 0x6ffffef7 /* GNU (unused) */ 2037e16fca0SAli Bahrami #define DT_GNU_CONFLICT 0x6ffffef8 /* start of conflict section (unused) */ 2047e16fca0SAli Bahrami #define DT_GNU_LIBLIST 0x6ffffef9 /* Library list (unused) */ 2057e16fca0SAli Bahrami 2067c478bd9Sstevel@tonic-gate #define DT_CONFIG 0x6ffffefa /* configuration information */ 2077c478bd9Sstevel@tonic-gate #define DT_DEPAUDIT 0x6ffffefb /* dependency auditing */ 2087c478bd9Sstevel@tonic-gate #define DT_AUDIT 0x6ffffefc /* object auditing */ 2097c478bd9Sstevel@tonic-gate #define DT_PLTPAD 0x6ffffefd /* pltpadding (sparcv9) */ 2107c478bd9Sstevel@tonic-gate #define DT_MOVETAB 0x6ffffefe /* move table */ 2117c478bd9Sstevel@tonic-gate #define DT_SYMINFO 0x6ffffeff /* syminfo table */ 2127c478bd9Sstevel@tonic-gate #define DT_ADDRRNGHI 0x6ffffeff 2137c478bd9Sstevel@tonic-gate 2147c478bd9Sstevel@tonic-gate /* 2157c478bd9Sstevel@tonic-gate * The following DT_* entries should have been assigned within one of the 2167c478bd9Sstevel@tonic-gate * DT_* ranges, but existed before such ranges had been established. 2177c478bd9Sstevel@tonic-gate */ 218d840867fSab196087 #define DT_VERSYM 0x6ffffff0 /* version symbol table - unused by */ 219d840867fSab196087 /* Solaris (see libld/update.c) */ 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate #define DT_RELACOUNT 0x6ffffff9 /* number of RELATIVE relocations */ 2227c478bd9Sstevel@tonic-gate #define DT_RELCOUNT 0x6ffffffa /* number of RELATIVE relocations */ 2237c478bd9Sstevel@tonic-gate #define DT_FLAGS_1 0x6ffffffb /* state flags - see DF_1_* defs */ 2247c478bd9Sstevel@tonic-gate #define DT_VERDEF 0x6ffffffc /* version definition table and */ 2257c478bd9Sstevel@tonic-gate #define DT_VERDEFNUM 0x6ffffffd /* associated no. of entries */ 2267c478bd9Sstevel@tonic-gate #define DT_VERNEED 0x6ffffffe /* version needed table and */ 2277c478bd9Sstevel@tonic-gate #define DT_VERNEEDNUM 0x6fffffff /* associated no. of entries */ 2287c478bd9Sstevel@tonic-gate 2297c478bd9Sstevel@tonic-gate /* 2307c478bd9Sstevel@tonic-gate * DT_* entries between DT_HIPROC and DT_LOPROC are reserved for processor 2317c478bd9Sstevel@tonic-gate * specific semantics. 232d579eb63Sab196087 * 233d579eb63Sab196087 * DT_* encoding rules apply to all tag values larger than DT_LOPROC. 2347c478bd9Sstevel@tonic-gate */ 2357c478bd9Sstevel@tonic-gate #define DT_LOPROC 0x70000000 /* processor specific range */ 2367c478bd9Sstevel@tonic-gate #define DT_AUXILIARY 0x7ffffffd /* shared library auxiliary name */ 2377c478bd9Sstevel@tonic-gate #define DT_USED 0x7ffffffe /* ignored - same as needed */ 2387c478bd9Sstevel@tonic-gate #define DT_FILTER 0x7fffffff /* shared library filter name */ 2397c478bd9Sstevel@tonic-gate #define DT_HIPROC 0x7fffffff 2407c478bd9Sstevel@tonic-gate 2417c478bd9Sstevel@tonic-gate 2427c478bd9Sstevel@tonic-gate /* 2437c478bd9Sstevel@tonic-gate * Values for DT_FLAGS 2447c478bd9Sstevel@tonic-gate */ 2457c478bd9Sstevel@tonic-gate #define DF_ORIGIN 0x00000001 /* ORIGIN processing required */ 2467c478bd9Sstevel@tonic-gate #define DF_SYMBOLIC 0x00000002 /* symbolic bindings in effect */ 2477c478bd9Sstevel@tonic-gate #define DF_TEXTREL 0x00000004 /* text relocations remain */ 2487c478bd9Sstevel@tonic-gate #define DF_BIND_NOW 0x00000008 /* process all relocations */ 2497c478bd9Sstevel@tonic-gate #define DF_STATIC_TLS 0x00000010 /* obj. contains static TLS refs */ 2507c478bd9Sstevel@tonic-gate 2517c478bd9Sstevel@tonic-gate /* 2527c478bd9Sstevel@tonic-gate * Values for the DT_POSFLAG_1 .dynamic entry. 2537c478bd9Sstevel@tonic-gate * These values only affect the following DT_* entry. 2547c478bd9Sstevel@tonic-gate */ 2557c478bd9Sstevel@tonic-gate #define DF_P1_LAZYLOAD 0x00000001 /* following object is to be */ 2567c478bd9Sstevel@tonic-gate /* lazy loaded */ 2577c478bd9Sstevel@tonic-gate #define DF_P1_GROUPPERM 0x00000002 /* following object's symbols are */ 2587c478bd9Sstevel@tonic-gate /* not available for general */ 2597c478bd9Sstevel@tonic-gate /* symbol bindings. */ 2607c478bd9Sstevel@tonic-gate /* 2617c478bd9Sstevel@tonic-gate * Values for the DT_FLAGS_1 .dynamic entry. 2627c478bd9Sstevel@tonic-gate */ 2637c478bd9Sstevel@tonic-gate #define DF_1_NOW 0x00000001 /* set RTLD_NOW for this object */ 2647c478bd9Sstevel@tonic-gate #define DF_1_GLOBAL 0x00000002 /* set RTLD_GLOBAL for this object */ 2657c478bd9Sstevel@tonic-gate #define DF_1_GROUP 0x00000004 /* set RTLD_GROUP for this object */ 2667c478bd9Sstevel@tonic-gate #define DF_1_NODELETE 0x00000008 /* set RTLD_NODELETE for this object */ 2677c478bd9Sstevel@tonic-gate #define DF_1_LOADFLTR 0x00000010 /* trigger filtee loading at runtime */ 2687c478bd9Sstevel@tonic-gate #define DF_1_INITFIRST 0x00000020 /* set RTLD_INITFIRST for this object */ 2697c478bd9Sstevel@tonic-gate #define DF_1_NOOPEN 0x00000040 /* set RTLD_NOOPEN for this object */ 2707c478bd9Sstevel@tonic-gate #define DF_1_ORIGIN 0x00000080 /* ORIGIN processing required */ 2717c478bd9Sstevel@tonic-gate #define DF_1_DIRECT 0x00000100 /* direct binding enabled */ 2727c478bd9Sstevel@tonic-gate #define DF_1_TRANS 0x00000200 2739a411307Srie #define DF_1_INTERPOSE 0x00000400 /* object is an interposer */ 2747c478bd9Sstevel@tonic-gate #define DF_1_NODEFLIB 0x00000800 /* ignore default library search path */ 2757c478bd9Sstevel@tonic-gate #define DF_1_NODUMP 0x00001000 /* object can't be dldump(3x)'ed */ 2767c478bd9Sstevel@tonic-gate #define DF_1_CONFALT 0x00002000 /* configuration alternative created */ 2777c478bd9Sstevel@tonic-gate #define DF_1_ENDFILTEE 0x00004000 /* filtee terminates filters search */ 2787c478bd9Sstevel@tonic-gate #define DF_1_DISPRELDNE 0x00008000 /* disp reloc applied at build time */ 2797c478bd9Sstevel@tonic-gate #define DF_1_DISPRELPND 0x00010000 /* disp reloc applied at run-time */ 2807c478bd9Sstevel@tonic-gate #define DF_1_NODIRECT 0x00020000 /* object contains symbols that */ 2817c478bd9Sstevel@tonic-gate /* cannot be directly bound to */ 2820bc07c75Srie #define DF_1_IGNMULDEF 0x00040000 /* internal: krtld ignore muldefs */ 2830bc07c75Srie #define DF_1_NOKSYMS 0x00080000 /* internal: don't export object's */ 2840bc07c75Srie /* symbols via /dev/ksyms */ 2854899432aSab196087 #define DF_1_NOHDR 0x00100000 /* mapfile ?N:1st segment mapping */ 2864899432aSab196087 /* omits ELF & program headers */ 2873244bcaaSab196087 #define DF_1_EDITED 0x00200000 /* object has been modified since */ 2883244bcaaSab196087 /* being built by 'ld' */ 2890bc07c75Srie #define DF_1_NORELOC 0x00400000 /* internal: unrelocated object */ 2909a411307Srie #define DF_1_SYMINTPOSE 0x00800000 /* individual symbol interposers */ 2919a411307Srie /* exist */ 2927247f888Srie #define DF_1_GLOBAUDIT 0x01000000 /* establish global auditing */ 29360758829Srie #define DF_1_SINGLETON 0x02000000 /* singleton symbols exist */ 2947c478bd9Sstevel@tonic-gate 2957c478bd9Sstevel@tonic-gate /* 2964899432aSab196087 * Values set to DT_FEATURE_1 tag's d_val. 2977c478bd9Sstevel@tonic-gate */ 2987c478bd9Sstevel@tonic-gate #define DTF_1_PARINIT 0x00000001 /* partially initialization feature */ 2997c478bd9Sstevel@tonic-gate #define DTF_1_CONFEXP 0x00000002 /* configuration file expected */ 3007c478bd9Sstevel@tonic-gate 3017c478bd9Sstevel@tonic-gate 3027c478bd9Sstevel@tonic-gate /* 3037c478bd9Sstevel@tonic-gate * Version structures. There are three types of version structure: 3047c478bd9Sstevel@tonic-gate * 3057c478bd9Sstevel@tonic-gate * o A definition of the versions within the image itself. 3067c478bd9Sstevel@tonic-gate * Each version definition is assigned a unique index (starting from 3077c478bd9Sstevel@tonic-gate * VER_NDX_BGNDEF) which is used to cross-reference symbols associated to 3087c478bd9Sstevel@tonic-gate * the version. Each version can have one or more dependencies on other 3097c478bd9Sstevel@tonic-gate * version definitions within the image. The version name, and any 3107c478bd9Sstevel@tonic-gate * dependency names, are specified in the version definition auxiliary 3117c478bd9Sstevel@tonic-gate * array. Version definition entries require a version symbol index table. 3127c478bd9Sstevel@tonic-gate * 3137c478bd9Sstevel@tonic-gate * o A version requirement on a needed dependency. Each needed entry 3147c478bd9Sstevel@tonic-gate * specifies the shared object dependency (as specified in DT_NEEDED). 3157c478bd9Sstevel@tonic-gate * One or more versions required from this dependency are specified in the 3167c478bd9Sstevel@tonic-gate * version needed auxiliary array. 3177c478bd9Sstevel@tonic-gate * 3187c478bd9Sstevel@tonic-gate * o A version symbol index table. Each symbol indexes into this array 3197c478bd9Sstevel@tonic-gate * to determine its version index. Index values of VER_NDX_BGNDEF or 3207c478bd9Sstevel@tonic-gate * greater indicate the version definition to which a symbol is associated. 3217c478bd9Sstevel@tonic-gate * (the size of a symbol index entry is recorded in the sh_info field). 3227c478bd9Sstevel@tonic-gate */ 3237c478bd9Sstevel@tonic-gate #ifndef _ASM 3247c478bd9Sstevel@tonic-gate 3257c478bd9Sstevel@tonic-gate typedef struct { /* Version Definition Structure. */ 3267c478bd9Sstevel@tonic-gate Elf32_Half vd_version; /* this structures version revision */ 3277c478bd9Sstevel@tonic-gate Elf32_Half vd_flags; /* version information */ 3287c478bd9Sstevel@tonic-gate Elf32_Half vd_ndx; /* version index */ 3297c478bd9Sstevel@tonic-gate Elf32_Half vd_cnt; /* no. of associated aux entries */ 3307c478bd9Sstevel@tonic-gate Elf32_Word vd_hash; /* version name hash value */ 3317c478bd9Sstevel@tonic-gate Elf32_Word vd_aux; /* no. of bytes from start of this */ 3327c478bd9Sstevel@tonic-gate /* verdef to verdaux array */ 3337c478bd9Sstevel@tonic-gate Elf32_Word vd_next; /* no. of bytes from start of this */ 3347c478bd9Sstevel@tonic-gate } Elf32_Verdef; /* verdef to next verdef entry */ 3357c478bd9Sstevel@tonic-gate 3367c478bd9Sstevel@tonic-gate typedef struct { /* Verdef Auxiliary Structure. */ 3377c478bd9Sstevel@tonic-gate Elf32_Word vda_name; /* first element defines the version */ 3387c478bd9Sstevel@tonic-gate /* name. Additional entries */ 3397c478bd9Sstevel@tonic-gate /* define dependency names. */ 3407c478bd9Sstevel@tonic-gate Elf32_Word vda_next; /* no. of bytes from start of this */ 3417c478bd9Sstevel@tonic-gate } Elf32_Verdaux; /* verdaux to next verdaux entry */ 3427c478bd9Sstevel@tonic-gate 3437c478bd9Sstevel@tonic-gate 3447c478bd9Sstevel@tonic-gate typedef struct { /* Version Requirement Structure. */ 3457c478bd9Sstevel@tonic-gate Elf32_Half vn_version; /* this structures version revision */ 3467c478bd9Sstevel@tonic-gate Elf32_Half vn_cnt; /* no. of associated aux entries */ 3477c478bd9Sstevel@tonic-gate Elf32_Word vn_file; /* name of needed dependency (file) */ 3487c478bd9Sstevel@tonic-gate Elf32_Word vn_aux; /* no. of bytes from start of this */ 3497c478bd9Sstevel@tonic-gate /* verneed to vernaux array */ 3507c478bd9Sstevel@tonic-gate Elf32_Word vn_next; /* no. of bytes from start of this */ 3517c478bd9Sstevel@tonic-gate } Elf32_Verneed; /* verneed to next verneed entry */ 3527c478bd9Sstevel@tonic-gate 3537c478bd9Sstevel@tonic-gate typedef struct { /* Verneed Auxiliary Structure. */ 3547c478bd9Sstevel@tonic-gate Elf32_Word vna_hash; /* version name hash value */ 3557c478bd9Sstevel@tonic-gate Elf32_Half vna_flags; /* version information */ 3567c478bd9Sstevel@tonic-gate Elf32_Half vna_other; 3577c478bd9Sstevel@tonic-gate Elf32_Word vna_name; /* version name */ 3587c478bd9Sstevel@tonic-gate Elf32_Word vna_next; /* no. of bytes from start of this */ 3597c478bd9Sstevel@tonic-gate } Elf32_Vernaux; /* vernaux to next vernaux entry */ 3607c478bd9Sstevel@tonic-gate 3617c478bd9Sstevel@tonic-gate typedef Elf32_Half Elf32_Versym; /* Version symbol index array */ 3627c478bd9Sstevel@tonic-gate 3637c478bd9Sstevel@tonic-gate typedef struct { 3647c478bd9Sstevel@tonic-gate Elf32_Half si_boundto; /* direct bindings - symbol bound to */ 3657c478bd9Sstevel@tonic-gate Elf32_Half si_flags; /* per symbol flags */ 3667c478bd9Sstevel@tonic-gate } Elf32_Syminfo; 3677c478bd9Sstevel@tonic-gate 3687c478bd9Sstevel@tonic-gate 3697c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_LONGLONG_TYPE) 3707c478bd9Sstevel@tonic-gate typedef struct { 3717c478bd9Sstevel@tonic-gate Elf64_Half vd_version; /* this structures version revision */ 3727c478bd9Sstevel@tonic-gate Elf64_Half vd_flags; /* version information */ 3737c478bd9Sstevel@tonic-gate Elf64_Half vd_ndx; /* version index */ 3747c478bd9Sstevel@tonic-gate Elf64_Half vd_cnt; /* no. of associated aux entries */ 3757c478bd9Sstevel@tonic-gate Elf64_Word vd_hash; /* version name hash value */ 3767c478bd9Sstevel@tonic-gate Elf64_Word vd_aux; /* no. of bytes from start of this */ 3777c478bd9Sstevel@tonic-gate /* verdef to verdaux array */ 3787c478bd9Sstevel@tonic-gate Elf64_Word vd_next; /* no. of bytes from start of this */ 3797c478bd9Sstevel@tonic-gate } Elf64_Verdef; /* verdef to next verdef entry */ 3807c478bd9Sstevel@tonic-gate 3817c478bd9Sstevel@tonic-gate typedef struct { 3827c478bd9Sstevel@tonic-gate Elf64_Word vda_name; /* first element defines the version */ 3837c478bd9Sstevel@tonic-gate /* name. Additional entries */ 3847c478bd9Sstevel@tonic-gate /* define dependency names. */ 3857c478bd9Sstevel@tonic-gate Elf64_Word vda_next; /* no. of bytes from start of this */ 3867c478bd9Sstevel@tonic-gate } Elf64_Verdaux; /* verdaux to next verdaux entry */ 3877c478bd9Sstevel@tonic-gate 3887c478bd9Sstevel@tonic-gate typedef struct { 3897c478bd9Sstevel@tonic-gate Elf64_Half vn_version; /* this structures version revision */ 3907c478bd9Sstevel@tonic-gate Elf64_Half vn_cnt; /* no. of associated aux entries */ 3917c478bd9Sstevel@tonic-gate Elf64_Word vn_file; /* name of needed dependency (file) */ 3927c478bd9Sstevel@tonic-gate Elf64_Word vn_aux; /* no. of bytes from start of this */ 3937c478bd9Sstevel@tonic-gate /* verneed to vernaux array */ 3947c478bd9Sstevel@tonic-gate Elf64_Word vn_next; /* no. of bytes from start of this */ 3957c478bd9Sstevel@tonic-gate } Elf64_Verneed; /* verneed to next verneed entry */ 3967c478bd9Sstevel@tonic-gate 3977c478bd9Sstevel@tonic-gate typedef struct { 3987c478bd9Sstevel@tonic-gate Elf64_Word vna_hash; /* version name hash value */ 3997c478bd9Sstevel@tonic-gate Elf64_Half vna_flags; /* version information */ 4007c478bd9Sstevel@tonic-gate Elf64_Half vna_other; 4017c478bd9Sstevel@tonic-gate Elf64_Word vna_name; /* version name */ 4027c478bd9Sstevel@tonic-gate Elf64_Word vna_next; /* no. of bytes from start of this */ 4037c478bd9Sstevel@tonic-gate } Elf64_Vernaux; /* vernaux to next vernaux entry */ 4047c478bd9Sstevel@tonic-gate 4057c478bd9Sstevel@tonic-gate typedef Elf64_Half Elf64_Versym; 4067c478bd9Sstevel@tonic-gate 4077c478bd9Sstevel@tonic-gate typedef struct { 4087c478bd9Sstevel@tonic-gate Elf64_Half si_boundto; /* direct bindings - symbol bound to */ 4097c478bd9Sstevel@tonic-gate Elf64_Half si_flags; /* per symbol flags */ 4107c478bd9Sstevel@tonic-gate } Elf64_Syminfo; 4117c478bd9Sstevel@tonic-gate #endif /* defined(_LP64) || defined(_LONGLONG_TYPE) */ 4127c478bd9Sstevel@tonic-gate 4137c478bd9Sstevel@tonic-gate #endif /* _ASM */ 4147c478bd9Sstevel@tonic-gate 4157c478bd9Sstevel@tonic-gate /* 4167c478bd9Sstevel@tonic-gate * Versym symbol index values. Values greater than VER_NDX_GLOBAL 4177c478bd9Sstevel@tonic-gate * and less then VER_NDX_LORESERVE associate symbols with user 4187c478bd9Sstevel@tonic-gate * specified version descriptors. 4197c478bd9Sstevel@tonic-gate */ 4207c478bd9Sstevel@tonic-gate #define VER_NDX_LOCAL 0 /* symbol is local */ 4217c478bd9Sstevel@tonic-gate #define VER_NDX_GLOBAL 1 /* symbol is global and assigned to */ 4227c478bd9Sstevel@tonic-gate /* the base version */ 4237c478bd9Sstevel@tonic-gate #define VER_NDX_LORESERVE 0xff00 /* beginning of RESERVED entries */ 4247c478bd9Sstevel@tonic-gate #define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */ 4257c478bd9Sstevel@tonic-gate 4267c478bd9Sstevel@tonic-gate /* 427090a8d9eSAli Bahrami * Verdef (vd_flags) and Vernaux (vna_flags) flags values. 4287c478bd9Sstevel@tonic-gate */ 4297c478bd9Sstevel@tonic-gate #define VER_FLG_BASE 0x1 /* version definition of file itself */ 430090a8d9eSAli Bahrami /* (Verdef only) */ 4317c478bd9Sstevel@tonic-gate #define VER_FLG_WEAK 0x2 /* weak version identifier */ 432090a8d9eSAli Bahrami #define VER_FLG_INFO 0x4 /* version is recorded in object for */ 433090a8d9eSAli Bahrami /* informational purposes */ 434090a8d9eSAli Bahrami /* (Versym reference) only. No */ 435090a8d9eSAli Bahrami /* runtime verification is */ 436090a8d9eSAli Bahrami /* required. (Vernaux only) */ 4377c478bd9Sstevel@tonic-gate 4387c478bd9Sstevel@tonic-gate /* 4397c478bd9Sstevel@tonic-gate * Verdef version values. 4407c478bd9Sstevel@tonic-gate */ 4417c478bd9Sstevel@tonic-gate #define VER_DEF_NONE 0 /* Ver_def version */ 4427c478bd9Sstevel@tonic-gate #define VER_DEF_CURRENT 1 4437c478bd9Sstevel@tonic-gate #define VER_DEF_NUM 2 4447c478bd9Sstevel@tonic-gate 4457c478bd9Sstevel@tonic-gate /* 4467c478bd9Sstevel@tonic-gate * Verneed version values. 4477c478bd9Sstevel@tonic-gate */ 4487c478bd9Sstevel@tonic-gate #define VER_NEED_NONE 0 /* Ver_need version */ 4497c478bd9Sstevel@tonic-gate #define VER_NEED_CURRENT 1 4507c478bd9Sstevel@tonic-gate #define VER_NEED_NUM 2 4517c478bd9Sstevel@tonic-gate 4527c478bd9Sstevel@tonic-gate 4537c478bd9Sstevel@tonic-gate /* 4547c478bd9Sstevel@tonic-gate * Syminfo flag values 4557c478bd9Sstevel@tonic-gate */ 4567c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association */ 4577c478bd9Sstevel@tonic-gate /* to object containing defn. */ 458*4f680cc6SAli Bahrami #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ 459*4f680cc6SAli Bahrami /* standard filter */ 460*4f680cc6SAli Bahrami #define SYMINFO_FLG_PASSTHRU SYMINFO_FLG_FILTER /* unused historical name */ 4617c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ 4629a411307Srie #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn. should be */ 4637c478bd9Sstevel@tonic-gate /* lazily-loaded */ 4647c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to */ 4657c478bd9Sstevel@tonic-gate /* object containing defn. */ 4667c478bd9Sstevel@tonic-gate #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference */ 4677c478bd9Sstevel@tonic-gate /* directly bind to this symbol */ 468*4f680cc6SAli Bahrami #define SYMINFO_FLG_AUXILIARY 0x0040 /* symbol ref is associated to a */ 469*4f680cc6SAli Bahrami /* auxiliary filter */ 4709a411307Srie #define SYMINFO_FLG_INTERPOSE 0x0080 /* symbol defines an interposer */ 4717c478bd9Sstevel@tonic-gate 4727c478bd9Sstevel@tonic-gate /* 4737c478bd9Sstevel@tonic-gate * Syminfo.si_boundto values. 4747c478bd9Sstevel@tonic-gate */ 4757c478bd9Sstevel@tonic-gate #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ 4767c478bd9Sstevel@tonic-gate #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ 4777c478bd9Sstevel@tonic-gate #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ 4787c478bd9Sstevel@tonic-gate #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ 4797c478bd9Sstevel@tonic-gate #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ 4807c478bd9Sstevel@tonic-gate 4817c478bd9Sstevel@tonic-gate /* 4827c478bd9Sstevel@tonic-gate * Syminfo version values. 4837c478bd9Sstevel@tonic-gate */ 4847c478bd9Sstevel@tonic-gate #define SYMINFO_NONE 0 /* Syminfo version */ 4857c478bd9Sstevel@tonic-gate #define SYMINFO_CURRENT 1 4867c478bd9Sstevel@tonic-gate #define SYMINFO_NUM 2 4877c478bd9Sstevel@tonic-gate 4887c478bd9Sstevel@tonic-gate 4897c478bd9Sstevel@tonic-gate /* 4907c478bd9Sstevel@tonic-gate * Public structure defined and maintained within the runtime linker 4917c478bd9Sstevel@tonic-gate */ 4927c478bd9Sstevel@tonic-gate #ifndef _ASM 4937c478bd9Sstevel@tonic-gate 4947c478bd9Sstevel@tonic-gate typedef struct link_map Link_map; 4957c478bd9Sstevel@tonic-gate 4967c478bd9Sstevel@tonic-gate struct link_map { 4977c478bd9Sstevel@tonic-gate unsigned long l_addr; /* address at which object is mapped */ 4987c478bd9Sstevel@tonic-gate char *l_name; /* full name of loaded object */ 4997c478bd9Sstevel@tonic-gate #ifdef _LP64 5007c478bd9Sstevel@tonic-gate Elf64_Dyn *l_ld; /* dynamic structure of object */ 5017c478bd9Sstevel@tonic-gate #else 5027c478bd9Sstevel@tonic-gate Elf32_Dyn *l_ld; /* dynamic structure of object */ 5037c478bd9Sstevel@tonic-gate #endif 5047c478bd9Sstevel@tonic-gate Link_map *l_next; /* next link object */ 5057c478bd9Sstevel@tonic-gate Link_map *l_prev; /* previous link object */ 5067c478bd9Sstevel@tonic-gate char *l_refname; /* filters reference name */ 5077c478bd9Sstevel@tonic-gate }; 5087c478bd9Sstevel@tonic-gate 5097c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32 5107c478bd9Sstevel@tonic-gate typedef struct link_map32 Link_map32; 5117c478bd9Sstevel@tonic-gate 5127c478bd9Sstevel@tonic-gate struct link_map32 { 5137c478bd9Sstevel@tonic-gate Elf32_Word l_addr; 5147c478bd9Sstevel@tonic-gate Elf32_Addr l_name; 5157c478bd9Sstevel@tonic-gate Elf32_Addr l_ld; 5167c478bd9Sstevel@tonic-gate Elf32_Addr l_next; 5177c478bd9Sstevel@tonic-gate Elf32_Addr l_prev; 5187c478bd9Sstevel@tonic-gate Elf32_Addr l_refname; 5197c478bd9Sstevel@tonic-gate }; 5207c478bd9Sstevel@tonic-gate #endif 5217c478bd9Sstevel@tonic-gate 5227c478bd9Sstevel@tonic-gate typedef enum { 5237c478bd9Sstevel@tonic-gate RT_CONSISTENT, 5247c478bd9Sstevel@tonic-gate RT_ADD, 5257c478bd9Sstevel@tonic-gate RT_DELETE 5267c478bd9Sstevel@tonic-gate } r_state_e; 5277c478bd9Sstevel@tonic-gate 5287c478bd9Sstevel@tonic-gate typedef enum { 5297c478bd9Sstevel@tonic-gate RD_FL_NONE = 0, /* no flags */ 5307c478bd9Sstevel@tonic-gate RD_FL_ODBG = (1<<0), /* old style debugger present */ 5317c478bd9Sstevel@tonic-gate RD_FL_DBG = (1<<1) /* debugging enabled */ 5327c478bd9Sstevel@tonic-gate } rd_flags_e; 5337c478bd9Sstevel@tonic-gate 5347c478bd9Sstevel@tonic-gate 5357c478bd9Sstevel@tonic-gate 5367c478bd9Sstevel@tonic-gate /* 5377c478bd9Sstevel@tonic-gate * Debugging events enabled inside of the runtime linker. To 5387c478bd9Sstevel@tonic-gate * access these events see the librtld_db interface. 5397c478bd9Sstevel@tonic-gate */ 5407c478bd9Sstevel@tonic-gate typedef enum { 5417c478bd9Sstevel@tonic-gate RD_NONE = 0, /* no event */ 5427c478bd9Sstevel@tonic-gate RD_PREINIT, /* the Initial rendezvous before .init */ 5437c478bd9Sstevel@tonic-gate RD_POSTINIT, /* the Second rendezvous after .init */ 5447c478bd9Sstevel@tonic-gate RD_DLACTIVITY /* a dlopen or dlclose has happened */ 5457c478bd9Sstevel@tonic-gate } rd_event_e; 5467c478bd9Sstevel@tonic-gate 5477c478bd9Sstevel@tonic-gate struct r_debug { 5487c478bd9Sstevel@tonic-gate int r_version; /* debugging info version no. */ 5497c478bd9Sstevel@tonic-gate Link_map *r_map; /* address of link_map */ 5507c478bd9Sstevel@tonic-gate unsigned long r_brk; /* address of update routine */ 5517c478bd9Sstevel@tonic-gate r_state_e r_state; 5527c478bd9Sstevel@tonic-gate unsigned long r_ldbase; /* base addr of ld.so */ 5537c478bd9Sstevel@tonic-gate Link_map *r_ldsomap; /* address of ld.so.1's link map */ 5547c478bd9Sstevel@tonic-gate rd_event_e r_rdevent; /* debug event */ 5557c478bd9Sstevel@tonic-gate rd_flags_e r_flags; /* misc flags. */ 5567c478bd9Sstevel@tonic-gate }; 5577c478bd9Sstevel@tonic-gate 5587c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32 5597c478bd9Sstevel@tonic-gate struct r_debug32 { 5607c478bd9Sstevel@tonic-gate Elf32_Word r_version; /* debugging info version no. */ 5617c478bd9Sstevel@tonic-gate Elf32_Addr r_map; /* address of link_map */ 5627c478bd9Sstevel@tonic-gate Elf32_Word r_brk; /* address of update routine */ 5637c478bd9Sstevel@tonic-gate r_state_e r_state; 5647c478bd9Sstevel@tonic-gate Elf32_Word r_ldbase; /* base addr of ld.so */ 5657c478bd9Sstevel@tonic-gate Elf32_Addr r_ldsomap; /* address of ld.so.1's link map */ 5667c478bd9Sstevel@tonic-gate rd_event_e r_rdevent; /* debug event */ 5677c478bd9Sstevel@tonic-gate rd_flags_e r_flags; /* misc flags. */ 5687c478bd9Sstevel@tonic-gate }; 5697c478bd9Sstevel@tonic-gate #endif 5707c478bd9Sstevel@tonic-gate 5717c478bd9Sstevel@tonic-gate 5727c478bd9Sstevel@tonic-gate #define R_DEBUG_VERSION 2 /* current r_debug version */ 5737c478bd9Sstevel@tonic-gate #endif /* _ASM */ 5747c478bd9Sstevel@tonic-gate 5757c478bd9Sstevel@tonic-gate /* 5767c478bd9Sstevel@tonic-gate * Attribute/value structures used to bootstrap ELF-based dynamic linker. 5777c478bd9Sstevel@tonic-gate */ 5787c478bd9Sstevel@tonic-gate #ifndef _ASM 5797c478bd9Sstevel@tonic-gate typedef struct { 5807c478bd9Sstevel@tonic-gate Elf32_Sword eb_tag; /* what this one is */ 5817c478bd9Sstevel@tonic-gate union { /* possible values */ 5827c478bd9Sstevel@tonic-gate Elf32_Word eb_val; 5837c478bd9Sstevel@tonic-gate Elf32_Addr eb_ptr; 5847c478bd9Sstevel@tonic-gate Elf32_Off eb_off; 5857c478bd9Sstevel@tonic-gate } eb_un; 5867c478bd9Sstevel@tonic-gate } Elf32_Boot; 5877c478bd9Sstevel@tonic-gate 5887c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_LONGLONG_TYPE) 5897c478bd9Sstevel@tonic-gate typedef struct { 5907c478bd9Sstevel@tonic-gate Elf64_Xword eb_tag; /* what this one is */ 5917c478bd9Sstevel@tonic-gate union { /* possible values */ 5927c478bd9Sstevel@tonic-gate Elf64_Xword eb_val; 5937c478bd9Sstevel@tonic-gate Elf64_Addr eb_ptr; 5947c478bd9Sstevel@tonic-gate Elf64_Off eb_off; 5957c478bd9Sstevel@tonic-gate } eb_un; 5967c478bd9Sstevel@tonic-gate } Elf64_Boot; 5977c478bd9Sstevel@tonic-gate #endif /* defined(_LP64) || defined(_LONGLONG_TYPE) */ 5987c478bd9Sstevel@tonic-gate #endif /* _ASM */ 5997c478bd9Sstevel@tonic-gate 6007c478bd9Sstevel@tonic-gate /* 6017c478bd9Sstevel@tonic-gate * Attributes 6027c478bd9Sstevel@tonic-gate */ 6037c478bd9Sstevel@tonic-gate #define EB_NULL 0 /* (void) last entry */ 6047c478bd9Sstevel@tonic-gate #define EB_DYNAMIC 1 /* (*) dynamic structure of subject */ 6057c478bd9Sstevel@tonic-gate #define EB_LDSO_BASE 2 /* (caddr_t) base address of ld.so */ 6067c478bd9Sstevel@tonic-gate #define EB_ARGV 3 /* (caddr_t) argument vector */ 6077c478bd9Sstevel@tonic-gate #define EB_ENVP 4 /* (char **) environment strings */ 6087c478bd9Sstevel@tonic-gate #define EB_AUXV 5 /* (auxv_t *) auxiliary vector */ 6097c478bd9Sstevel@tonic-gate #define EB_DEVZERO 6 /* (int) fd for /dev/zero */ 6107c478bd9Sstevel@tonic-gate #define EB_PAGESIZE 7 /* (int) page size */ 6117c478bd9Sstevel@tonic-gate #define EB_MAX 8 /* number of "EBs" */ 6127c478bd9Sstevel@tonic-gate #define EB_MAX_SIZE32 64 /* size in bytes, _ILP32 */ 6137c478bd9Sstevel@tonic-gate #define EB_MAX_SIZE64 128 /* size in bytes, _LP64 */ 6147c478bd9Sstevel@tonic-gate 6157c478bd9Sstevel@tonic-gate 6167c478bd9Sstevel@tonic-gate #ifndef _ASM 6177c478bd9Sstevel@tonic-gate 6187c478bd9Sstevel@tonic-gate #ifdef __STDC__ 6197c478bd9Sstevel@tonic-gate 6207c478bd9Sstevel@tonic-gate /* 6217c478bd9Sstevel@tonic-gate * Concurrency communication structure for libc callbacks. 6227c478bd9Sstevel@tonic-gate */ 6237c478bd9Sstevel@tonic-gate extern void _ld_libc(void *); 6247c478bd9Sstevel@tonic-gate #else /* __STDC__ */ 6257c478bd9Sstevel@tonic-gate extern void _ld_libc(); 6267c478bd9Sstevel@tonic-gate #endif /* __STDC__ */ 6277c478bd9Sstevel@tonic-gate 6287c478bd9Sstevel@tonic-gate #pragma unknown_control_flow(_ld_libc) 6297c478bd9Sstevel@tonic-gate #endif /* _ASM */ 6307c478bd9Sstevel@tonic-gate 6317c478bd9Sstevel@tonic-gate #ifdef __cplusplus 6327c478bd9Sstevel@tonic-gate } 6337c478bd9Sstevel@tonic-gate #endif 6347c478bd9Sstevel@tonic-gate 6357c478bd9Sstevel@tonic-gate #endif /* _SYS_LINK_H */ 636