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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #ifndef _SYS_AUXV_H 32 #define _SYS_AUXV_H 33 34 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */ 35 36 #include <sys/types.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #if !defined(_ASM) 43 typedef struct 44 { 45 int a_type; 46 union { 47 long a_val; 48 #ifdef __STDC__ 49 void *a_ptr; 50 #else 51 char *a_ptr; 52 #endif 53 void (*a_fcn)(); 54 } a_un; 55 } auxv_t; 56 57 #if defined(_SYSCALL32) 58 59 typedef struct { 60 int32_t a_type; 61 union { 62 int32_t a_val; 63 caddr32_t a_ptr; 64 caddr32_t a_fcn; 65 } a_un; 66 } auxv32_t; 67 68 #endif /* _SYSCALL32 */ 69 70 #endif /* _ASM */ 71 72 #define AT_NULL 0 73 #define AT_IGNORE 1 74 #define AT_EXECFD 2 75 #define AT_PHDR 3 /* &phdr[0] */ 76 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 77 #define AT_PHNUM 5 /* # phdr entries */ 78 #define AT_PAGESZ 6 /* getpagesize(2) */ 79 #define AT_BASE 7 /* ld.so base addr */ 80 #define AT_FLAGS 8 /* processor flags */ 81 #define AT_ENTRY 9 /* a.out entry point */ 82 83 /* 84 * These relate to the original PPC ABI document; Linux reused 85 * the values for other things (see below), so disambiguation of 86 * these values may require additional context in PPC binaries. 87 * 88 * AT_DCACHEBSIZE 10 smallest data cache block size 89 * AT_ICACHEBSIZE 11 smallest instruction cache block size 90 * AT_UCACHEBSIZE 12 smallest unified cache block size 91 * 92 * These are the values from LSB 1.3, the first five are also described 93 * in the draft amd64 ABI. 94 * 95 * At the time of writing, Solaris doesn't place any of these values into 96 * the aux vector; we do similar things via AT_SUN_ values. 97 * 98 * AT_NOTELF 10 program is not ELF? 99 * AT_UID 11 real user id 100 * AT_EUID 12 effective user id 101 * AT_GID 13 real group id 102 * AT_EGID 14 effective group id 103 * 104 * AT_PLATFORM 15 105 * AT_HWCAP 16 106 * AT_CLKTCK 17 c.f. _SC_CLK_TCK 107 * AT_FPUCW 18 108 * 109 * AT_DCACHEBSIZE 19 (moved from 10) 110 * AT_ICACHEBSIZE 20 (moved from 11) 111 * AT_UCACHEBSIZE 21 (moved from 12) 112 * 113 * AT_IGNOREPPC 22 114 */ 115 116 /* 117 * Sun extensions begin here 118 */ 119 #define AT_SUN_UID 2000 /* effective user id */ 120 #define AT_SUN_RUID 2001 /* real user id */ 121 #define AT_SUN_GID 2002 /* effective group id */ 122 #define AT_SUN_RGID 2003 /* real group id */ 123 124 /* 125 * The following attributes are specific to the 126 * kernel implementation of the linker/loader. 127 */ 128 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 129 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section headers */ 130 #define AT_SUN_LDNAME 2006 /* name of dynamic linker */ 131 #define AT_SUN_LPAGESZ 2007 /* large pagesize */ 132 /* 133 * The following aux vector provides a null-terminated platform 134 * identification string. This information is the same as provided 135 * by sysinfo(2) when invoked with the command SI_PLATFORM. 136 */ 137 #define AT_SUN_PLATFORM 2008 /* platform name */ 138 139 /* 140 * These attributes communicate performance -hints- about processor 141 * hardware capabilities that might be useful to library implementations. 142 */ 143 #define AT_SUN_HWCAP 2009 144 145 #if defined(_KERNEL) 146 /* 147 * User info regarding machine attributes, respectively reported to native and 148 * non-native user apps. 149 */ 150 extern uint_t auxv_hwcap; 151 #if defined(_SYSCALL32) 152 extern uint_t auxv_hwcap32; 153 #endif /* _SYSCALL32 */ 154 #else 155 extern uint_t getisax(uint32_t *, uint_t); 156 #endif /* _KERNEL */ 157 158 #define AT_SUN_IFLUSH 2010 /* flush icache? */ 159 #define AT_SUN_CPU 2011 /* cpu name */ 160 161 /* 162 * The following aux vector provides a pointer to a null-terminated 163 * path name, a copy of the path name passed to the exec() system 164 * call but that has had all symlinks resolved (see resolvepath(2)). 165 */ 166 #define AT_SUN_EXECNAME 2014 /* exec() path name */ 167 168 #define AT_SUN_MMU 2015 /* mmu module name */ 169 #define AT_SUN_LDDATA 2016 /* dynamic linkers data segment */ 170 171 #define AT_SUN_AUXFLAGS 2017 /* AF_SUN_ flags passed from the kernel */ 172 173 /* 174 * The kernel is in a better position to determine whether a process needs to 175 * ignore dangerous LD environment variables. If set, this flags tells 176 * ld.so.1 to run "secure" and ignore the the environment. 177 */ 178 #define AF_SUN_SETUGID 0x00000001 179 180 /* 181 * If set, this flag indicates that hardware capabilites can be verified 182 * against the AT_SUN_HWCAP value. 183 */ 184 #define AF_SUN_HWCAPVERIFY 0x00000002 185 186 187 #ifdef __cplusplus 188 } 189 #endif 190 191 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_SPARC) || defined(__sparc) 192 #include <sys/auxv_SPARC.h> 193 #endif 194 195 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_386) || defined(__x86) 196 #include <sys/auxv_386.h> 197 #endif 198 199 #endif /* _SYS_AUXV_H */ 200