/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* * Copyright 2014 Garrett D'Amore <garrett@damore.org> * * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2018, Joyent, Inc. * Copyright 2022 Oxide Computer Company */ #ifndef _SYS_AUXV_H #define _SYS_AUXV_H #include <sys/types.h> #ifdef __cplusplus extern "C" { #endif #if !defined(_ASM) typedef struct { int a_type; union { long a_val; void *a_ptr; void (*a_fcn)(); } a_un; } auxv_t; #if defined(_SYSCALL32) typedef struct { int32_t a_type; union { int32_t a_val; caddr32_t a_ptr; caddr32_t a_fcn; } a_un; } auxv32_t; #endif /* _SYSCALL32 */ #endif /* _ASM */ #define AT_NULL 0 #define AT_IGNORE 1 #define AT_EXECFD 2 #define AT_PHDR 3 /* &phdr[0] */ #define AT_PHENT 4 /* sizeof(phdr[0]) */ #define AT_PHNUM 5 /* # phdr entries */ #define AT_PAGESZ 6 /* getpagesize(2) */ #define AT_BASE 7 /* ld.so base addr */ #define AT_FLAGS 8 /* processor flags */ #define AT_ENTRY 9 /* a.out entry point */ /* * These relate to the original PPC ABI document; Linux reused * the values for other things (see below), so disambiguation of * these values may require additional context in PPC binaries. * * AT_DCACHEBSIZE 10 smallest data cache block size * AT_ICACHEBSIZE 11 smallest instruction cache block size * AT_UCACHEBSIZE 12 smallest unified cache block size * * These are the values from LSB 1.3, the first five are also described * in the draft amd64 ABI. * * At the time of writing, Solaris doesn't place any of these values into * the aux vector, except AT_CLKTCK which is placed on the aux vector for * lx branded processes; also, we do similar things via AT_SUN_ values. * * AT_NOTELF 10 program is not ELF? * AT_UID 11 real user id * AT_EUID 12 effective user id * AT_GID 13 real group id * AT_EGID 14 effective group id * * AT_PLATFORM 15 * AT_HWCAP 16 * AT_CLKTCK 17 c.f. _SC_CLK_TCK * AT_FPUCW 18 * * AT_DCACHEBSIZE 19 (moved from 10) * AT_ICACHEBSIZE 20 (moved from 11) * AT_UCACHEBSIZE 21 (moved from 12) * * AT_IGNOREPPC 22 */ /* * Sun extensions begin here */ #define AT_SUN_UID 2000 /* effective user id */ #define AT_SUN_RUID 2001 /* real user id */ #define AT_SUN_GID 2002 /* effective group id */ #define AT_SUN_RGID 2003 /* real group id */ /* * The following attributes are specific to the * kernel implementation of the linker/loader. */ #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ #define AT_SUN_LDSHDR 2005 /* dynamic linker's section headers */ #define AT_SUN_LDNAME 2006 /* name of dynamic linker */ #define AT_SUN_LPAGESZ 2007 /* large pagesize */ /* * The following aux vector provides a null-terminated platform * identification string. This information is the same as provided * by sysinfo(2) when invoked with the command SI_PLATFORM. */ #define AT_SUN_PLATFORM 2008 /* platform name */ /* * These attributes communicate performance -hints- about processor * hardware capabilities that might be useful to library implementations. */ #define AT_SUN_HWCAP 2009 #define AT_SUN_HWCAP2 2023 #define AT_SUN_HWCAP3 2029 #if defined(_KERNEL) /* * User info regarding machine attributes, respectively reported to native and * non-native user apps. */ extern uint_t auxv_hwcap; extern uint_t auxv_hwcap_2; extern uint_t auxv_hwcap_3; #if defined(_SYSCALL32) extern uint_t auxv_hwcap32; extern uint_t auxv_hwcap32_2; extern uint_t auxv_hwcap32_3; #endif /* _SYSCALL32 */ #else extern uint_t getisax(uint32_t *, uint_t); #endif /* _KERNEL */ #define AT_SUN_IFLUSH 2010 /* flush icache? */ #define AT_SUN_CPU 2011 /* cpu name */ /* * The following aux vector provides a pointer to a null-terminated * path name, a copy of the path name passed to the exec() system * call but that has had all symlinks resolved (see resolvepath(2)). */ #define AT_SUN_EXECNAME 2014 /* exec() path name */ #define AT_SUN_MMU 2015 /* mmu module name */ #define AT_SUN_LDDATA 2016 /* dynamic linkers data segment */ #define AT_SUN_AUXFLAGS 2017 /* AF_SUN_ flags passed from the kernel */ /* * Used to indicate to the runtime linker the name of the emulation binary, * if one is being used. For brands, this is the name of the brand library. */ #define AT_SUN_EMULATOR 2018 #define AT_SUN_BRANDNAME 2019 /* * Aux vectors available for brand modules. */ #define AT_SUN_BRAND_AUX1 2020 #define AT_SUN_BRAND_AUX2 2021 #define AT_SUN_BRAND_AUX3 2022 /* * Aux vector for comm page */ #define AT_SUN_COMMPAGE 2026 /* * These two AUX vectors are generally used to define information about the FPU. * These values are currently only used on the x86 platform. */ #define AT_SUN_FPTYPE 2027 #define AT_SUN_FPSIZE 2028 /* * The kernel is in a better position to determine whether a process needs to * ignore dangerous LD environment variables. If set, this flags tells * ld.so.1 to run "secure" and ignore the the environment. */ #define AF_SUN_SETUGID 0x00000001 /* * If set, this flag indicates that hardware capabilites can be verified * against the AT_SUN_HWCAP value. */ #define AF_SUN_HWCAPVERIFY 0x00000002 /* * If set, this flag indicates that the the linker should not initialize * any of its link maps as primary link wrt the unified libc threading * interfaces. */ #define AF_SUN_NOPLM 0x00000004 #ifdef __cplusplus } #endif #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_SPARC) || defined(__sparc) #include <sys/auxv_SPARC.h> #endif #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_386) || defined(__x86) #include <sys/auxv_386.h> #endif #endif /* _SYS_AUXV_H */
