/*

 * 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 2004 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 */

/*

 * The following c routine has appropriate interface semantics

 * for the chaining combination template.  On the sparc architecture

 * the assembly routine is further tuned to make it tail recursive.

 *

 * void

 * prb_chain_entry(void *a, void *b, void *c)

 * {

 * 	prb_chain_down(a, b, c);

 * 	prb_chain_next(a, b, c);

 * }

 */

	.data

	.align	4

	.globl	prb_callinfo

prb_callinfo:

	.4byte	1		/* offset */

	.4byte	0		/* shift right */

	.4byte	0xffffffff	/* mask */

	.text

	.align	4

	.globl	prb_chain_entry

	.globl	prb_chain_down

	.local	chain_down

	.globl	prb_chain_next

	.local	chain_next

	.globl	prb_chain_end

prb_chain_entry:

#if defined(__amd64)

	/* XX64 -- fix me */

#else

	pushl	%ebp

	movl	%esp, %ebp

	pushl	%edi

	pushl	%esi

	pushl	%ebx

	movl	16(%ebp), %ebx

	pushl	%ebx

	movl	12(%ebp), %edi

	pushl	%edi

	movl	8(%ebp), %esi

	pushl	%esi

#endif

prb_chain_down:

chain_down:

#if defined(__amd64)

	/* XX64 -- fix me */

#else

	call	chain_down

	addl	$12, %esp

	pushl	%ebx

	pushl	%edi

	pushl	%esi

#endif

prb_chain_next:

chain_next:

#if defined(__amd64)

	/* XX64 -- fix me */

#else

	call	chain_next

	addl	$12, %esp

	popl	%ebx

	popl	%esi

	popl	%edi

	leave

#endif

	ret

prb_chain_end:

	nop