1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1999-2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _LIBC_INT_H 28 #define _LIBC_INT_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * Libc/rtld Runtime Interface 38 */ 39 #define CI_NULL 0 /* (void) last entry */ 40 #define CI_VERSION 1 /* current version of ri_interface */ 41 #define CI_ATEXIT 2 /* _preexec_exit_handlers() address */ 42 #define CI_LCMESSAGES 3 /* message locale */ 43 #define CI_BIND_GUARD 4 /* bind_guard() address */ 44 #define CI_BIND_CLEAR 5 /* bind_clear() address */ 45 #define CI_THR_SELF 6 /* thr_self() address */ 46 #define CI_TLS_MODADD 7 /* __tls_mod_add() address */ 47 #define CI_TLS_MODREM 8 /* __tls_mod_remove() address */ 48 #define CI_TLS_STATMOD 9 /* __tls_static_mods() address */ 49 #define CI_THRINIT 10 /* libc thread initialization */ 50 51 #define CI_MAX 11 52 53 #define CI_V_NONE 0 /* ci_version versions */ 54 #define CI_V_ONE 1 /* original version */ 55 #define CI_V_TWO 2 56 #define CI_V_THREE 3 57 #define CI_V_FOUR 4 58 #define CI_V_CURRENT CI_V_FOUR /* current version of libc interface */ 59 #define CI_V_NUM 5 /* number of CI_V_* numbers */ 60 61 /* 62 * Libc to ld.so.1 interface communication structure. 63 */ 64 typedef struct { 65 int ci_tag; 66 union { 67 int (*ci_func)(); 68 long ci_val; 69 char *ci_ptr; 70 } ci_un; 71 } Lc_interface; 72 73 /* 74 * Address range returned via CI_ATEXIT. Note, the address range array passed 75 * back from ld.so.1 is maintained by ld.so.1 and should not be freed by libc. 76 */ 77 typedef struct { 78 void * lb; /* lower bound */ 79 void * ub; /* upper bound */ 80 } Lc_addr_range_t; 81 82 /* 83 * Thread-Local storage data type and interfaces shared between 84 * libc & ld.so.1. 85 */ 86 87 typedef struct { 88 unsigned long ti_moduleid; /* module ID for TLS var */ 89 unsigned long ti_tlsoffset; /* offset into tls block for TLS var */ 90 } TLS_index; 91 92 93 typedef struct { 94 const char *tm_modname; /* name of object */ 95 /* containing TLS */ 96 unsigned long tm_modid; /* TLS module id */ 97 void * tm_tlsblock; /* pointer to r/o init image */ 98 unsigned long tm_filesz; /* initialized file size */ 99 unsigned long tm_memsz; /* memory size */ 100 long tm_stattlsoffset; /* signed offset into static */ 101 /* TLS block */ 102 unsigned long tm_flags; 103 void * tm_tlsinitarray; /* TLS .init function array */ 104 unsigned long tm_tlsinitarraycnt; /* # of entries in initarray */ 105 void * tm_tlsfiniarray; /* TLS .fini function array */ 106 unsigned long tm_tlsfiniarraycnt; /* # of entries in finiarray */ 107 unsigned long tm_pad[5]; /* future expansion */ 108 } TLS_modinfo; 109 110 #ifdef _SYSCALL32 111 typedef struct { 112 caddr32_t tm_modname; /* name of object */ 113 /* containing TLS */ 114 uint32_t tm_modid; /* TLS module id */ 115 caddr32_t tm_tlsblock; /* pointer to r/o init image */ 116 uint32_t tm_filesz; /* initialized file size */ 117 uint32_t tm_memsz; /* memory size */ 118 int32_t tm_stattlsoffset; /* signed offset into static */ 119 /* TLS block */ 120 uint32_t tm_flags; 121 caddr32_t tm_tlsinitarray; /* TLS .init function array */ 122 uint32_t tm_tlsinitarraycnt; /* # of entries in initarray */ 123 caddr32_t tm_tlsfiniarray; /* TLS .fini function array */ 124 uint32_t tm_tlsfiniarraycnt; /* # of entries in finiarray */ 125 uint32_t tm_pad[5]; /* future expansion */ 126 } TLS_modinfo32; 127 #endif 128 129 130 /* 131 * Flag values for TLS_modifo.tm_flags 132 */ 133 #define TM_FLG_STATICTLS 0x0001 /* Static TLS module */ 134 135 136 #ifdef __cplusplus 137 } 138 #endif 139 140 #endif /* _LIBC_INT_H */ 141