auxv.h revision 2712:f74a135872bc
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 2006 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 38extern "C" { 39#endif 40 41#if !defined(_ASM) 42typedef 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 58typedef 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; we do similar things via AT_SUN_ values. 96 * 97 * AT_NOTELF 10 program is not ELF? 98 * AT_UID 11 real user id 99 * AT_EUID 12 effective user id 100 * AT_GID 13 real group id 101 * AT_EGID 14 effective group id 102 * 103 * AT_PLATFORM 15 104 * AT_HWCAP 16 105 * AT_CLKTCK 17 c.f. _SC_CLK_TCK 106 * AT_FPUCW 18 107 * 108 * AT_DCACHEBSIZE 19 (moved from 10) 109 * AT_ICACHEBSIZE 20 (moved from 11) 110 * AT_UCACHEBSIZE 21 (moved from 12) 111 * 112 * AT_IGNOREPPC 22 113 */ 114 115/* 116 * Sun extensions begin here 117 */ 118#define AT_SUN_UID 2000 /* effective user id */ 119#define AT_SUN_RUID 2001 /* real user id */ 120#define AT_SUN_GID 2002 /* effective group id */ 121#define AT_SUN_RGID 2003 /* real group id */ 122 123/* 124 * The following attributes are specific to the 125 * kernel implementation of the linker/loader. 126 */ 127#define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 128#define AT_SUN_LDSHDR 2005 /* dynamic linker's section headers */ 129#define AT_SUN_LDNAME 2006 /* name of dynamic linker */ 130#define AT_SUN_LPAGESZ 2007 /* large pagesize */ 131/* 132 * The following aux vector provides a null-terminated platform 133 * identification string. This information is the same as provided 134 * by sysinfo(2) when invoked with the command SI_PLATFORM. 135 */ 136#define AT_SUN_PLATFORM 2008 /* platform name */ 137 138/* 139 * These attributes communicate performance -hints- about processor 140 * hardware capabilities that might be useful to library implementations. 141 */ 142#define AT_SUN_HWCAP 2009 143 144#if defined(_KERNEL) 145/* 146 * User info regarding machine attributes, respectively reported to native and 147 * non-native user apps. 148 */ 149extern uint_t auxv_hwcap; 150#if defined(_SYSCALL32) 151extern uint_t auxv_hwcap32; 152#endif /* _SYSCALL32 */ 153#else 154extern uint_t getisax(uint32_t *, uint_t); 155#endif /* _KERNEL */ 156 157#define AT_SUN_IFLUSH 2010 /* flush icache? */ 158#define AT_SUN_CPU 2011 /* cpu name */ 159 160/* 161 * The following aux vector provides a pointer to a null-terminated 162 * path name, a copy of the path name passed to the exec() system 163 * call but that has had all symlinks resolved (see resolvepath(2)). 164 */ 165#define AT_SUN_EXECNAME 2014 /* exec() path name */ 166 167#define AT_SUN_MMU 2015 /* mmu module name */ 168#define AT_SUN_LDDATA 2016 /* dynamic linkers data segment */ 169 170#define AT_SUN_AUXFLAGS 2017 /* AF_SUN_ flags passed from the kernel */ 171 172/* 173 * Used to indicate to the runtime linker the name of the emulation binary, 174 * if one is being used. For brands, this is the name of the brand library. 175 */ 176#define AT_SUN_EMULATOR 2018 177 178#define AT_SUN_BRANDNAME 2019 179#define AT_SUN_BRAND_PHDR 2020 /* Brand executable's phdr */ 180 181/* 182 * The kernel is in a better position to determine whether a process needs to 183 * ignore dangerous LD environment variables. If set, this flags tells 184 * ld.so.1 to run "secure" and ignore the the environment. 185 */ 186#define AF_SUN_SETUGID 0x00000001 187 188/* 189 * If set, this flag indicates that hardware capabilites can be verified 190 * against the AT_SUN_HWCAP value. 191 */ 192#define AF_SUN_HWCAPVERIFY 0x00000002 193 194#ifdef __cplusplus 195} 196#endif 197 198#if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_SPARC) || defined(__sparc) 199#include <sys/auxv_SPARC.h> 200#endif 201 202#if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_386) || defined(__x86) 203#include <sys/auxv_386.h> 204#endif 205 206#endif /* _SYS_AUXV_H */ 207