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 2008 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 /* 30 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 31 */ 32 33 #ifndef _SYS_AUXV_H 34 #define _SYS_AUXV_H 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, except AT_CLKTCK which is placed on the aux vector for 97 * lx branded processes; also, we do similar things via AT_SUN_ values. 98 * 99 * AT_NOTELF 10 program is not ELF? 100 * AT_UID 11 real user id 101 * AT_EUID 12 effective user id 102 * AT_GID 13 real group id 103 * AT_EGID 14 effective group id 104 * 105 * AT_PLATFORM 15 106 * AT_HWCAP 16 107 * AT_CLKTCK 17 c.f. _SC_CLK_TCK 108 * AT_FPUCW 18 109 * 110 * AT_DCACHEBSIZE 19 (moved from 10) 111 * AT_ICACHEBSIZE 20 (moved from 11) 112 * AT_UCACHEBSIZE 21 (moved from 12) 113 * 114 * AT_IGNOREPPC 22 115 */ 116 117 /* 118 * Sun extensions begin here 119 */ 120 #define AT_SUN_UID 2000 /* effective user id */ 121 #define AT_SUN_RUID 2001 /* real user id */ 122 #define AT_SUN_GID 2002 /* effective group id */ 123 #define AT_SUN_RGID 2003 /* real group id */ 124 125 /* 126 * The following attributes are specific to the 127 * kernel implementation of the linker/loader. 128 */ 129 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 130 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section headers */ 131 #define AT_SUN_LDNAME 2006 /* name of dynamic linker */ 132 #define AT_SUN_LPAGESZ 2007 /* large pagesize */ 133 /* 134 * The following aux vector provides a null-terminated platform 135 * identification string. This information is the same as provided 136 * by sysinfo(2) when invoked with the command SI_PLATFORM. 137 */ 138 #define AT_SUN_PLATFORM 2008 /* platform name */ 139 140 /* 141 * These attributes communicate performance -hints- about processor 142 * hardware capabilities that might be useful to library implementations. 143 */ 144 #define AT_SUN_HWCAP 2009 145 #define AT_SUN_HWCAP2 2023 146 147 #if defined(_KERNEL) 148 /* 149 * User info regarding machine attributes, respectively reported to native and 150 * non-native user apps. 151 */ 152 extern uint_t auxv_hwcap; 153 extern uint_t auxv_hwcap_2; 154 #if defined(_SYSCALL32) 155 extern uint_t auxv_hwcap32; 156 extern uint_t auxv_hwcap32_2; 157 #endif /* _SYSCALL32 */ 158 #else 159 extern uint_t getisax(uint32_t *, uint_t); 160 #endif /* _KERNEL */ 161 162 #define AT_SUN_IFLUSH 2010 /* flush icache? */ 163 #define AT_SUN_CPU 2011 /* cpu name */ 164 165 /* 166 * The following aux vector provides a pointer to a null-terminated 167 * path name, a copy of the path name passed to the exec() system 168 * call but that has had all symlinks resolved (see resolvepath(2)). 169 */ 170 #define AT_SUN_EXECNAME 2014 /* exec() path name */ 171 172 #define AT_SUN_MMU 2015 /* mmu module name */ 173 #define AT_SUN_LDDATA 2016 /* dynamic linkers data segment */ 174 175 #define AT_SUN_AUXFLAGS 2017 /* AF_SUN_ flags passed from the kernel */ 176 177 /* 178 * Used to indicate to the runtime linker the name of the emulation binary, 179 * if one is being used. For brands, this is the name of the brand library. 180 */ 181 #define AT_SUN_EMULATOR 2018 182 183 #define AT_SUN_BRANDNAME 2019 184 185 /* 186 * Aux vectors available for brand modules. 187 */ 188 #define AT_SUN_BRAND_AUX1 2020 189 #define AT_SUN_BRAND_AUX2 2021 190 #define AT_SUN_BRAND_AUX3 2022 191 192 /* 193 * Note that 2023 is reserved for the AT_SUN_HWCAP2 word defined above. 194 */ 195 196 /* 197 * The kernel is in a better position to determine whether a process needs to 198 * ignore dangerous LD environment variables. If set, this flags tells 199 * ld.so.1 to run "secure" and ignore the the environment. 200 */ 201 #define AF_SUN_SETUGID 0x00000001 202 203 /* 204 * If set, this flag indicates that hardware capabilites can be verified 205 * against the AT_SUN_HWCAP value. 206 */ 207 #define AF_SUN_HWCAPVERIFY 0x00000002 208 209 /* 210 * If set, this flag indicates that the the linker should not initialize 211 * any of its link maps as primary link wrt the unified libc threading 212 * interfaces. 213 */ 214 #define AF_SUN_NOPLM 0x00000004 215 216 #ifdef __cplusplus 217 } 218 #endif 219 220 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_SPARC) || defined(__sparc) 221 #include <sys/auxv_SPARC.h> 222 #endif 223 224 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_386) || defined(__x86) 225 #include <sys/auxv_386.h> 226 #endif 227 228 #endif /* _SYS_AUXV_H */ 229