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__sigtramp2.S revision 1.1.4.2 
      1  1.1.4.2  tls /* $NetBSD: __sigtramp2.S,v 1.1.4.2 2014/08/20 00:02:09 tls Exp $ */
      2  1.1.4.2  tls 
      3  1.1.4.2  tls /*-
      4  1.1.4.2  tls  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      5  1.1.4.2  tls  * All rights reserved.
      6  1.1.4.2  tls  *
      7  1.1.4.2  tls  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1.4.2  tls  * by Matt Thomas of 3am Software Foundry.
      9  1.1.4.2  tls  *
     10  1.1.4.2  tls  * Redistribution and use in source and binary forms, with or without
     11  1.1.4.2  tls  * modification, are permitted provided that the following conditions
     12  1.1.4.2  tls  * are met:
     13  1.1.4.2  tls  * 1. Redistributions of source code must retain the above copyright
     14  1.1.4.2  tls  *    notice, this list of conditions and the following disclaimer.
     15  1.1.4.2  tls  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1.4.2  tls  *    notice, this list of conditions and the following disclaimer in the
     17  1.1.4.2  tls  *    documentation and/or other materials provided with the distribution.
     18  1.1.4.2  tls  *
     19  1.1.4.2  tls  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1.4.2  tls  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1.4.2  tls  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1.4.2  tls  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1.4.2  tls  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1.4.2  tls  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1.4.2  tls  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1.4.2  tls  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1.4.2  tls  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1.4.2  tls  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1.4.2  tls  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1.4.2  tls  */
     31  1.1.4.2  tls 
     32  1.1.4.2  tls #include "SYS.h"
     33  1.1.4.2  tls 
     34  1.1.4.2  tls /*
     35  1.1.4.2  tls  * The ARM signal trampoline is invoked only to return from
     36  1.1.4.2  tls  * the signal; the kernel calls the signal handler directly.
     37  1.1.4.2  tls  *
     38  1.1.4.2  tls  * On entry, the stack looks like:
     39  1.1.4.2  tls  *
     40  1.1.4.2  tls  *		ucontext structure
     41  1.1.4.2  tls  *	sp->	siginfo structure
     42  1.1.4.2  tls  * and x28 points to the ucontext
     43  1.1.4.2  tls  */
     44  1.1.4.2  tls ENTRY_NP(__sigtramp_siginfo_2)
     45  1.1.4.2  tls 	mov	x0, x28				/* set the arg         */
     46  1.1.4.2  tls 	SYSTRAP(setcontext)			/* and call setcontext */
     47  1.1.4.2  tls 
     48  1.1.4.2  tls 	/* If that failed, exit with the error code. */
     49  1.1.4.2  tls 	SYSTRAP(exit)
     50  1.1.4.2  tls END(__sigtramp_siginfo_2)
     51