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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 22 /* All Rights Reserved */ 23 24 25 /* 26 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 #ifndef _SYS_AUXV_H 31 #define _SYS_AUXV_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */ 34 35 #include <sys/types.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #if !defined(_ASM) 42 typedef struct 43 { 44 int a_type; 45 union { 46 long a_val; 47 #ifdef __STDC__ 48 void *a_ptr; 49 #else 50 char *a_ptr; 51 #endif 52 void (*a_fcn)(); 53 } a_un; 54 } auxv_t; 55 56 #if defined(_SYSCALL32) 57 58 typedef struct { 59 int32_t a_type; 60 union { 61 int32_t a_val; 62 caddr32_t a_ptr; 63 caddr32_t a_fcn; 64 } a_un; 65 } auxv32_t; 66 67 #endif /* _SYSCALL32 */ 68 69 #endif /* _ASM */ 70 71 #define AT_NULL 0 72 #define AT_IGNORE 1 73 #define AT_EXECFD 2 74 #define AT_PHDR 3 /* &phdr[0] */ 75 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 76 #define AT_PHNUM 5 /* # phdr entries */ 77 #define AT_PAGESZ 6 /* getpagesize(2) */ 78 #define AT_BASE 7 /* ld.so base addr */ 79 #define AT_FLAGS 8 /* processor flags */ 80 #define AT_ENTRY 9 /* a.out entry point */ 81 82 /* 83 * These relate to the original PPC ABI document; Linux reused 84 * the values for other things (see below), so disambiguation of 85 * these values may require additional context in PPC binaries. 86 * 87 * AT_DCACHEBSIZE 10 smallest data cache block size 88 * AT_ICACHEBSIZE 11 smallest instruction cache block size 89 * AT_UCACHEBSIZE 12 smallest unified cache block size 90 * 91 * These are the values from LSB 1.3, the first five are also described 92 * in the draft amd64 ABI. 93 * 94 * At the time of writing, Solaris doesn't place any of these values into 95 * the aux vector, except AT_CLKTCK which is placed on the aux vector for 96 * lx branded processes; also, 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 * Used to indicate to the runtime linker the name of the emulation binary, 175 * if one is being used. For brands, this is the name of the brand library. 176 */ 177 #define AT_SUN_EMULATOR 2018 178 179 #define AT_SUN_BRANDNAME 2019 180 181 /* 182 * Aux vectors available for brand modules. 183 */ 184 #define AT_SUN_BRAND_AUX1 2020 185 #define AT_SUN_BRAND_AUX2 2021 186 #define AT_SUN_BRAND_AUX3 2022 187 188 /* 189 * The kernel is in a better position to determine whether a process needs to 190 * ignore dangerous LD environment variables. If set, this flags tells 191 * ld.so.1 to run "secure" and ignore the the environment. 192 */ 193 #define AF_SUN_SETUGID 0x00000001 194 195 /* 196 * If set, this flag indicates that hardware capabilites can be verified 197 * against the AT_SUN_HWCAP value. 198 */ 199 #define AF_SUN_HWCAPVERIFY 0x00000002 200 201 #ifdef __cplusplus 202 } 203 #endif 204 205 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_SPARC) || defined(__sparc) 206 #include <sys/auxv_SPARC.h> 207 #endif 208 209 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_386) || defined(__x86) 210 #include <sys/auxv_386.h> 211 #endif 212 213 #endif /* _SYS_AUXV_H */ 214