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__sigtramp2.S revision 1.2.8.2 
      1  1.2.8.2  martin /*	$NetBSD: __sigtramp2.S,v 1.2.8.2 2008/05/02 18:34:18 martin Exp $ */
      2  1.2.8.2  martin 
      3  1.2.8.2  martin /*-
      4  1.2.8.2  martin  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  1.2.8.2  martin  * All rights reserved.
      6  1.2.8.2  martin  *
      7  1.2.8.2  martin  * Redistribution and use in source and binary forms, with or without
      8  1.2.8.2  martin  * modification, are permitted provided that the following conditions
      9  1.2.8.2  martin  * are met:
     10  1.2.8.2  martin  * 1. Redistributions of source code must retain the above copyright
     11  1.2.8.2  martin  *    notice, this list of conditions and the following disclaimer.
     12  1.2.8.2  martin  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.2.8.2  martin  *    notice, this list of conditions and the following disclaimer in the
     14  1.2.8.2  martin  *    documentation and/or other materials provided with the distribution.
     15  1.2.8.2  martin  *
     16  1.2.8.2  martin  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  1.2.8.2  martin  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  1.2.8.2  martin  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  1.2.8.2  martin  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  1.2.8.2  martin  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  1.2.8.2  martin  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  1.2.8.2  martin  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  1.2.8.2  martin  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  1.2.8.2  martin  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  1.2.8.2  martin  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  1.2.8.2  martin  * POSSIBILITY OF SUCH DAMAGE.
     27  1.2.8.2  martin  */
     28  1.2.8.2  martin 
     29  1.2.8.2  martin #include "SYS.h"
     30  1.2.8.2  martin 
     31  1.2.8.2  martin /*
     32  1.2.8.2  martin  * The m68k signal trampoline is invoked only to return from
     33  1.2.8.2  martin  * the signal; the kernel calls the signal handler directly.
     34  1.2.8.2  martin  *
     35  1.2.8.2  martin  * On entry, stack looks like:
     36  1.2.8.2  martin  *
     37  1.2.8.2  martin  *		ucontext structure			[12+sizeof(siginfo_t)]
     38  1.2.8.2  martin  *		siginfo structure			[12]
     39  1.2.8.2  martin  *		pointer to ucontext structure		[8]
     40  1.2.8.2  martin  *		pointer to siginfo structure		[4]
     41  1.2.8.2  martin  *	sp->	signal number				[0]
     42  1.2.8.2  martin  */
     43  1.2.8.2  martin ENTRY_NOPROFILE(__sigtramp_siginfo_2)
     44  1.2.8.2  martin 	movl	%sp@(8),%a0	/* get pointer to ucontext */
     45  1.2.8.2  martin 	movl	%a0,%sp@(4)	/* put it in the argument slot */
     46  1.2.8.2  martin 				/* fake return address already there */
     47  1.2.8.2  martin         movl    #SYS_setcontext,%d0
     48  1.2.8.2  martin         trap    #0
     49  1.2.8.2  martin 	movl	%d0,%sp@(4)	/* error code */
     50  1.2.8.2  martin 	SYSTRAP(exit)		/* exit */
     51