exec.h

微内核软实时操作系统

/*	$OpenBSD: exec.h,v 1.8 2001/01/22 14:51:04 art Exp $	*/
/*	$NetBSD: exec.h,v 1.6 1994/10/27 04:16:05 cgd Exp $	*/

/*
 * Copyright (c) 1993 Christopher G. Demetriou
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _MACHINE_EXEC_H_
#define _MACHINE_EXEC_H_

#if defined(i386) || defined(__i386__)

/* Relocation format. */
struct relocation_info_i386 {
	int r_address;			/* offset in text or data segment */
	unsigned int r_symbolnum : 24,	/* ordinal number of add symbol */
			 r_pcrel :  1,	/* 1 if value should be pc-relative */
			r_length :  2,	/* log base 2 of value's width */
			r_extern :  1,	/* 1 if need to add symbol to value */
		       r_baserel :  1,	/* linkage table relative */
		      r_jmptable :  1,	/* relocate to jump table */
		      r_relative :  1,	/* load address relative */
			  r_copy :  1;	/* run time copy */
};
#define relocation_info	relocation_info_i386

#define ELF_TARG_MACH		EM_386 /* XXX - EM_486 is currently unused
					  by all OSs/compilers/linkers */

#endif

#define ARCH_ELFSIZE		32

#define ELF_TARG_CLASS		ELFCLASS32
#define ELF_TARG_DATA		ELFDATA2LSB




#endif  /* _MACHINE_EXEC_H_ */