1 /* $NetBSD: __sigtramp2.S,v 1.2 2004/03/26 20:35:37 drochner Exp $ */
4 * Copyright (c) 2002 Anders Magnusson, (ragge@NetBSD.org).
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
31 * Signal trampoline; registers when called:
32 * sp, pc, psl - obvious
33 * ap - points to argument list, see machdep.c:sendsig()
34 * fp - address of signal handler
42 .globl _C_LABEL(__sigtramp_sigcontext_2)
43 _C_LABEL(__sigtramp_sigcontext_2):
44 pushr $(R0|R1|R2|R3|R4|R5) # save scratch registers
45 callg (%ap),(%fp) # use global arg list
46 popr $(R0|R1|R2|R3|R4|R5) # restore regs
47 movab 8(%ap),%ap # arg is pointer to sigctx
48 SYSTRAP(compat_16___sigreturn14) # exit from here