1/* $NetBSD: compat___sigtramp2.S,v 1.3 2011/01/29 22:58:47 matt Exp $ */ 2 3/* 4 * Copyright (c) 2002 Anders Magnusson, (ragge@NetBSD.org). 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 * sp, pc, psl - obvious 33 * ap - points to argument list, see machdep.c:sendsig() 34 * fp - address of signal handler 35 */ 36 37#include "SYS.h" 38 39#ifdef SYSLIBC_SCCS 40RCSID("$NetBSD: compat___sigtramp2.S,v 1.3 2011/01/29 22:58:47 matt Exp $") 41#endif 42 43 .text 44 _ALIGN_TEXT 45 46 .globl _C_LABEL(__sigtramp_sigcontext_2) 47_C_LABEL(__sigtramp_sigcontext_2): 48 nop; nop; 49 pushr $(R0|R1|R2|R3|R4|R5) # save scratch registers 50 callg (%ap),(%fp) # use global arg list 51 popr $(R0|R1|R2|R3|R4|R5) # restore regs 52 movab 8(%ap),%ap # arg is pointer to sigctx 53 SYSTRAP(compat_16___sigreturn14) # exit from here 54 halt # illegal insn 55END(__sigtramp_sigcontext_2) 56