/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (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) 1990 Sun Microsystems, Inc.
 */

#ifndef _ELF_BOOT_H
#define	_ELF_BOOT_H

#ident	"%Z%%M%	%I%	%E% SMI"

/*
 * Attribute/value structures used to bootstrap ELF-based dynamic linker.
 */

#ifndef	_ASM
typedef struct {
	Elf32_Sword eb_tag;		/* what this one is */
	union {				/* possible values */
		Elf32_Word eb_val;
		Elf32_Addr eb_ptr;
		Elf32_Off  eb_off;
	} eb_un;
} Elf32_Boot;
#endif	/* _ASM */

/*
 * Attributes
 */
#define	EB_NULL		0		/* (void) last entry */
#define	EB_DYNAMIC	1		/* (*) dynamic structure of subject */
#define	EB_LDSO_BASE	2		/* (caddr_t) base address of ld.so */
#define	EB_ARGV		3		/* (caddr_t) argument vector */
#define	EB_ENVP		4		/* (char **) environment strings */
#define	EB_AUXV		5		/* (auxv_t *) auxiliary vector */
#define	EB_DEVZERO	6		/* (int) fd for /dev/zero */
#define	EB_PAGESIZE	7		/* (int) page size */
#define	EB_MAX		8		/* number of "EBs" */

#endif	/* _ELF_BOOT_H */