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__sigtramp2.S revision 1.1.30.1 
      1  1.1.30.1  yamt /*	$NetBSD: __sigtramp2.S,v 1.1.30.1 2008/05/18 12:30:12 yamt 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       1.1    cl 	movl	%sp@(8),%a0	/* get pointer to ucontext */
     45       1.1    cl 	movl	%a0,%sp@(4)	/* 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       1.1    cl 	movl	%d0,%sp@(4)	/* error code */
     50       1.1    cl 	SYSTRAP(exit)		/* exit */
     51