hash.c   [plain text]


/*
 * 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) 1988 AT&T	*/
/*	  All Rights Reserved  	*/


/*
 * Copyright (c) 2000 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#pragma ident	"@(#)hash.c	1.10	05/06/08 SMI" 	/* SVr4.0 1.4	*/

// XXX_PRAGMA_WEAK #pragma weak	elf_hash = _elf_hash


#include "syn.h"


/*
 * The elf_hash() routine as defined by the gABI
 */
unsigned long
elf_hash(const char * ename)
{
	unsigned int	hval = 0;

	while (*ename) {
		unsigned int	g;
		hval = (hval << 4) + *ename++;
		if ((g = (hval & 0xf0000000)) != 0)
			hval ^= g >> 24;
		hval &= ~g;
	}
	return ((unsigned long)hval);
}