/*
 * Copyright (c) 1995, 1994, 1993, 1992, 1991, 1990  
 * Open Software Foundation, Inc. 
 *  
 * Permission to use, copy, modify, and distribute this software and 
 * its documentation for any purpose and without fee is hereby granted, 
 * provided that the above copyright notice appears in all copies and 
 * that both the copyright notice and this permission notice appear in 
 * supporting documentation, and that the name of ("OSF") or Open Software 
 * Foundation not be used in advertising or publicity pertaining to 
 * distribution of the software without specific, written prior permission. 
 *  
 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL OSF BE LIABLE FOR ANY 
 * SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 
 * ACTION OF CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING 
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE 
 * 
 */
/*
 * OSF Research Institute MK6.1 (unencumbered) 1/31/1995
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */
/*
 */

/*
 * Kernel remote gdb -- kgdb_setjmp, kgdb_longjmp
 *
 *	kgdb_longjmp(a,v)
 * will generate a "return(v)" from
 * the last call to
 *	kgdb_setjmp(a)
 * by restoring registers from the stack,
 *
 */

#include <i386/asm.h>

ENTRY(kgdb_setjmp)
	movl	4(%esp),%ecx		/ fetch buffer
	movl	%ebx,0(%ecx)
	movl	%esi,4(%ecx)
	movl	%edi,8(%ecx)
	movl	%ebp,12(%ecx)		/ save frame pointer of caller
	popl	%edx
	movl	%esp,16(%ecx)		/ save stack pointer of caller
	movl	%edx,20(%ecx)		/ save pc of caller
	xorl	%eax,%eax
        jmp     *%edx

ENTRY(kgdb_longjmp)
	movl	8(%esp),%eax		/ return(v)
	movl	4(%esp),%ecx		/ fetch buffer
	movl	0(%ecx),%ebx
	movl	4(%ecx),%esi
	movl	8(%ecx),%edi
	movl	12(%ecx),%ebp
	movl	16(%ecx),%esp
	orl	%eax,%eax
	jnz	0f
	incl	%eax
0:	jmp	*20(%ecx)		/ done, return....
