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__sigtramp2.S revision 1.3 
      1  1.3  matt /*	$NetBSD: __sigtramp2.S,v 1.3 2013/07/16 20:49:42 matt Exp $ */
      2  1.1    cl 
      3  1.1    cl /*-
      4  1.1    cl  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  1.1    cl  * All rights reserved.
      6  1.1    cl  *
      7  1.1    cl  * Redistribution and use in source and binary forms, with or without
      8  1.1    cl  * modification, are permitted provided that the following conditions
      9  1.1    cl  * are met:
     10  1.1    cl  * 1. Redistributions of source code must retain the above copyright
     11  1.1    cl  *    notice, this list of conditions and the following disclaimer.
     12  1.1    cl  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1    cl  *    notice, this list of conditions and the following disclaimer in the
     14  1.1    cl  *    documentation and/or other materials provided with the distribution.
     15  1.1    cl  *
     16  1.1    cl  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  1.1    cl  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  1.1    cl  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  1.1    cl  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  1.1    cl  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  1.1    cl  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  1.1    cl  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  1.1    cl  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  1.1    cl  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  1.1    cl  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  1.1    cl  * POSSIBILITY OF SUCH DAMAGE.
     27  1.1    cl  */
     28  1.1    cl 
     29  1.1    cl #include "SYS.h"
     30  1.1    cl 
     31  1.1    cl /*
     32  1.1    cl  * The m68k signal trampoline is invoked only to return from
     33  1.1    cl  * the signal; the kernel calls the signal handler directly.
     34  1.1    cl  *
     35  1.1    cl  * On entry, stack looks like:
     36  1.1    cl  *
     37  1.1    cl  *		ucontext structure			[12+sizeof(siginfo_t)]
     38  1.1    cl  *		siginfo structure			[12]
     39  1.1    cl  *		pointer to ucontext structure		[8]
     40  1.1    cl  *		pointer to siginfo structure		[4]
     41  1.1    cl  *	sp->	signal number				[0]
     42  1.1    cl  */
     43  1.1    cl ENTRY_NOPROFILE(__sigtramp_siginfo_2)
     44  1.3  matt 	movl	8(%sp),%a0	/* get pointer to ucontext */
     45  1.3  matt 	movl	%a0,4(%sp)	/* put it in the argument slot */
     46  1.1    cl 				/* fake return address already there */
     47  1.1    cl         movl    #SYS_setcontext,%d0
     48  1.1    cl         trap    #0
     49  1.3  matt 	movl	%d0,4(%sp)	/* error code */
     50  1.1    cl 	SYSTRAP(exit)		/* exit */
     51