1*2fe8fb19SBen Gras/* $NetBSD: compat_sigsetjmp.S,v 1.2 2009/12/14 03:04:33 matt Exp $ */ 2*2fe8fb19SBen Gras 3*2fe8fb19SBen Gras/*- 4*2fe8fb19SBen Gras * Copyright (c) 1991, 1993, 1995, 5*2fe8fb19SBen Gras * The Regents of the University of California. All rights reserved. 6*2fe8fb19SBen Gras * 7*2fe8fb19SBen Gras * This code is derived from software contributed to Berkeley by 8*2fe8fb19SBen Gras * Havard Eidnes. 9*2fe8fb19SBen Gras * 10*2fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without 11*2fe8fb19SBen Gras * modification, are permitted provided that the following conditions 12*2fe8fb19SBen Gras * are met: 13*2fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright 14*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer. 15*2fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 16*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the 17*2fe8fb19SBen Gras * documentation and/or other materials provided with the distribution. 18*2fe8fb19SBen Gras * 3. Neither the name of the University nor the names of its contributors 19*2fe8fb19SBen Gras * may be used to endorse or promote products derived from this software 20*2fe8fb19SBen Gras * without specific prior written permission. 21*2fe8fb19SBen Gras * 22*2fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23*2fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24*2fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25*2fe8fb19SBen Gras * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26*2fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27*2fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28*2fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29*2fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30*2fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31*2fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32*2fe8fb19SBen Gras * SUCH DAMAGE. 33*2fe8fb19SBen Gras */ 34*2fe8fb19SBen Gras 35*2fe8fb19SBen Gras#include <sys/syscall.h> 36*2fe8fb19SBen Gras#include <mips/asm.h> 37*2fe8fb19SBen Gras#include <mips/regdef.h> 38*2fe8fb19SBen Gras 39*2fe8fb19SBen Gras#include "assym.h" 40*2fe8fb19SBen Gras 41*2fe8fb19SBen Gras#if defined(LIBC_SCCS) && !defined(lint) 42*2fe8fb19SBen Gras#if 0 43*2fe8fb19SBen Gras ASMSTR("from: @(#)setjmp.s 8.1 (Berkeley) 6/4/93") 44*2fe8fb19SBen Gras#else 45*2fe8fb19SBen Gras ASMSTR("$NetBSD: compat_sigsetjmp.S,v 1.2 2009/12/14 03:04:33 matt Exp $") 46*2fe8fb19SBen Gras#endif 47*2fe8fb19SBen Gras#endif /* LIBC_SCCS and not lint */ 48*2fe8fb19SBen Gras 49*2fe8fb19SBen Gras/* 50*2fe8fb19SBen Gras * C library -- sigsetjmp, siglongjmp 51*2fe8fb19SBen Gras * 52*2fe8fb19SBen Gras * siglongjmp(a,v) 53*2fe8fb19SBen Gras * will generate a "return(v)" from 54*2fe8fb19SBen Gras * the last call to 55*2fe8fb19SBen Gras * sigsetjmp(a, savemask) 56*2fe8fb19SBen Gras * by restoring registers from the stack, 57*2fe8fb19SBen Gras * and dependent on savemask restores the 58*2fe8fb19SBen Gras * signal mask. 59*2fe8fb19SBen Gras */ 60*2fe8fb19SBen Gras 61*2fe8fb19SBen GrasLEAF(sigsetjmp) 62*2fe8fb19SBen Gras SETUP_GP 63*2fe8fb19SBen Gras SETUP_GP64(t0, sigsetjmp) 64*2fe8fb19SBen Gras INT_S a1, _OFFSETOF_SC_MASK13(a0) # save "savemask" 65*2fe8fb19SBen Gras bne a1, 0x0, 1f # do saving of signal mask? 66*2fe8fb19SBen Gras PTR_LA t9, _C_LABEL(_setjmp) 67*2fe8fb19SBen Gras jr t9 68*2fe8fb19SBen Gras 69*2fe8fb19SBen Gras1: PTR_LA t9, _C_LABEL(setjmp) 70*2fe8fb19SBen Gras jr t9 71*2fe8fb19SBen GrasEND(sigsetjmp) 72*2fe8fb19SBen Gras 73*2fe8fb19SBen GrasLEAF(siglongjmp) 74*2fe8fb19SBen Gras SETUP_GP 75*2fe8fb19SBen Gras SETUP_GP64(t0, siglongjmp) 76*2fe8fb19SBen Gras INT_L t1, _OFFSETOF_SC_MASK13(a0) # get "savemask" 77*2fe8fb19SBen Gras bne t1, 0x0, 1f # restore signal mask? 78*2fe8fb19SBen Gras PTR_LA t9, _C_LABEL(_longjmp) 79*2fe8fb19SBen Gras jr t9 80*2fe8fb19SBen Gras 81*2fe8fb19SBen Gras1: PTR_LA t9, _C_LABEL(longjmp) 82*2fe8fb19SBen Gras jr t9 83*2fe8fb19SBen GrasEND(siglongjmp) 84