/*      $NetBSD: compat___sigtramp2.S,v 1.3 2011/01/29 22:58:47 matt Exp $      */

/*
 * Copyright (c) 2002 Anders Magnusson, (ragge@NetBSD.org).
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * Signal trampoline; registers when called:
 *      sp, pc, psl - obvious
 *      ap - points to argument list, see machdep.c:sendsig()
 *      fp - address of signal handler
 */

#include "SYS.h"

#ifdef SYSLIBC_SCCS
RCSID("$NetBSD: compat___sigtramp2.S,v 1.3 2011/01/29 22:58:47 matt Exp $")
#endif

        .text
        _ALIGN_TEXT

        .globl  _C_LABEL(__sigtramp_sigcontext_2)
_C_LABEL(__sigtramp_sigcontext_2):
        nop; nop;
        pushr $(R0|R1|R2|R3|R4|R5)      # save scratch registers
        callg (%ap),(%fp)               # use global arg list
        popr $(R0|R1|R2|R3|R4|R5)       # restore regs
        movab 8(%ap),%ap                # arg is pointer to sigctx
        SYSTRAP(compat_16___sigreturn14) # exit from here
        halt                            # illegal insn
END(__sigtramp_sigcontext_2)