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__sigtramp3.S revision 1.1.52.1 
      1 /*	$NetBSD: __sigtramp3.S,v 1.1.52.1 2011/02/08 16:18:58 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2003 Matt Thomas <matt (at) 3am-software.com>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 /*
     31  * Signal trampoline; registers when called:
     32  *	pc, psl - obvious
     33  *	sp, ap - points to argument list
     34  *	    4(ap) -- signo
     35  *	    8(ap) -- pointer to siginfo
     36  *	   12(ap) -- pointer to ucontext
     37  *	fp - address of signal handler
     38  */
     39 
     40 #include "SYS.h"
     41 
     42 #ifdef SYSLIBC_SCCS
     43 RCSID("$NetBSD: __sigtramp3.S,v 1.1.52.1 2011/02/08 16:18:58 bouyer Exp $")
     44 #endif
     45 
     46 	.text
     47 	_ALIGN_TEXT
     48 
     49 	.globl	_C_LABEL(__sigtramp_siginfo_3)
     50 _C_LABEL(__sigtramp_siginfo_3):
     51 	nop; nop
     52 	callg (%ap),(%fp)		# use global arg list
     53 	addl2 $8,%ap			# arg is pointer to ucontext
     54 	SYSTRAP(setcontext)		# exit from here
     55 	halt				# illegal insn
     56