/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 *

 * 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  	*/

/*

 * Use is subject to license terms.

 */

#ifndef	_SYS_AUXV_H

#define	_SYS_AUXV_H

#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.2	*/

#include <sys/types.h>

#ifdef	__cplusplus

extern "C" {

#endif

#if !defined(_ASM)

typedef struct

{

	int	a_type;

	union {

		long	a_val;

#ifdef __STDC__

		void	*a_ptr;

#else

		char	*a_ptr;

#endif

		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; 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

#if defined(_KERNEL)

/*

 * User info regarding machine attributes, respectively reported to native and

 * non-native user apps.

 */

extern uint_t auxv_hwcap;

#if defined(_SYSCALL32)

extern uint_t auxv_hwcap32;

#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 */

/*

 * 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

#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 */