1*4a5d661aSToomas Soome/*- 2*4a5d661aSToomas Soome * Copyright (c) 1991, 1993 3*4a5d661aSToomas Soome * The Regents of the University of California. All rights reserved. 4*4a5d661aSToomas Soome * 5*4a5d661aSToomas Soome * This code is derived from software contributed to Berkeley by 6*4a5d661aSToomas Soome * Ralph Campbell. 7*4a5d661aSToomas Soome * 8*4a5d661aSToomas Soome * Redistribution and use in source and binary forms, with or without 9*4a5d661aSToomas Soome * modification, are permitted provided that the following conditions 10*4a5d661aSToomas Soome * are met: 11*4a5d661aSToomas Soome * 1. Redistributions of source code must retain the above copyright 12*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer. 13*4a5d661aSToomas Soome * 2. Redistributions in binary form must reproduce the above copyright 14*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer in the 15*4a5d661aSToomas Soome * documentation and/or other materials provided with the distribution. 16*4a5d661aSToomas Soome * 3. All advertising materials mentioning features or use of this software 17*4a5d661aSToomas Soome * must display the following acknowledgement: 18*4a5d661aSToomas Soome * This product includes software developed by the University of 19*4a5d661aSToomas Soome * California, Berkeley and its contributors. 20*4a5d661aSToomas Soome * 4. Neither the name of the University nor the names of its contributors 21*4a5d661aSToomas Soome * may be used to endorse or promote products derived from this software 22*4a5d661aSToomas Soome * without specific prior written permission. 23*4a5d661aSToomas Soome * 24*4a5d661aSToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25*4a5d661aSToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26*4a5d661aSToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27*4a5d661aSToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28*4a5d661aSToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29*4a5d661aSToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30*4a5d661aSToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31*4a5d661aSToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32*4a5d661aSToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33*4a5d661aSToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34*4a5d661aSToomas Soome * SUCH DAMAGE. 35*4a5d661aSToomas Soome * 36*4a5d661aSToomas Soome * $FreeBSD$ 37*4a5d661aSToomas Soome */ 38*4a5d661aSToomas Soome 39*4a5d661aSToomas Soome#include <machine/regnum.h> 40*4a5d661aSToomas Soome#include <machine/asm.h> 41*4a5d661aSToomas Soome 42*4a5d661aSToomas Soome#if 0 43*4a5d661aSToomas Soome#if defined(LIBC_SCCS) 44*4a5d661aSToomas Soome .text 45*4a5d661aSToomas Soome .asciz "$OpenBSD: _setjmp.S,v 1.6 1996/09/23 21:27:53 imp Exp $" 46*4a5d661aSToomas Soome#endif /* LIBC_SCCS */ 47*4a5d661aSToomas Soome#endif 48*4a5d661aSToomas Soome 49*4a5d661aSToomas Soome/* 50*4a5d661aSToomas Soome * C library -- _setjmp, _longjmp 51*4a5d661aSToomas Soome * 52*4a5d661aSToomas Soome * _longjmp(a,v) 53*4a5d661aSToomas Soome * will generate a "return(v)" from 54*4a5d661aSToomas Soome * the last call to 55*4a5d661aSToomas Soome * _setjmp(a) 56*4a5d661aSToomas Soome * by restoring registers from the stack, 57*4a5d661aSToomas Soome * The previous signal state is NOT restored. 58*4a5d661aSToomas Soome */ 59*4a5d661aSToomas Soome 60*4a5d661aSToomas SoomeLEAF(_setjmp) 61*4a5d661aSToomas Soome .set noreorder 62*4a5d661aSToomas Soome REG_LI v0, 0xACEDBADE # sigcontext magic number 63*4a5d661aSToomas Soome REG_S ra, (2 * SZREG)(a0) # sc_pc = return address 64*4a5d661aSToomas Soome REG_S v0, (3 * SZREG)(a0) # saved in sc_regs[0] 65*4a5d661aSToomas Soome REG_S s0, ((S0 + 3) * SZREG)(a0) 66*4a5d661aSToomas Soome REG_S s1, ((S1 + 3) * SZREG)(a0) 67*4a5d661aSToomas Soome REG_S s2, ((S2 + 3) * SZREG)(a0) 68*4a5d661aSToomas Soome REG_S s3, ((S3 + 3) * SZREG)(a0) 69*4a5d661aSToomas Soome REG_S s4, ((S4 + 3) * SZREG)(a0) 70*4a5d661aSToomas Soome REG_S s5, ((S5 + 3) * SZREG)(a0) 71*4a5d661aSToomas Soome REG_S s6, ((S6 + 3) * SZREG)(a0) 72*4a5d661aSToomas Soome REG_S s7, ((S7 + 3) * SZREG)(a0) 73*4a5d661aSToomas Soome REG_S sp, ((SP + 3) * SZREG)(a0) 74*4a5d661aSToomas Soome REG_S s8, ((S8 + 3) * SZREG)(a0) 75*4a5d661aSToomas Soome j ra 76*4a5d661aSToomas Soome move v0, zero 77*4a5d661aSToomas SoomeEND(_setjmp) 78*4a5d661aSToomas Soome 79*4a5d661aSToomas SoomeLEAF(_longjmp) 80*4a5d661aSToomas Soome#ifdef ABICALLS 81*4a5d661aSToomas Soome subu sp, sp, 32 82*4a5d661aSToomas Soome .cprestore 16 83*4a5d661aSToomas Soome#endif 84*4a5d661aSToomas Soome .set noreorder 85*4a5d661aSToomas Soome REG_L v0, (3 * SZREG)(a0) # get magic number 86*4a5d661aSToomas Soome REG_L ra, (2 * SZREG)(a0) 87*4a5d661aSToomas Soome bne v0, 0xACEDBADE, botch # jump if error 88*4a5d661aSToomas Soome 89*4a5d661aSToomas Soome addu sp, sp, 32 # does not matter, sanity 90*4a5d661aSToomas Soome REG_L s0, ((S0 + 3) * SZREG)(a0) 91*4a5d661aSToomas Soome REG_L s1, ((S1 + 3) * SZREG)(a0) 92*4a5d661aSToomas Soome REG_L s2, ((S2 + 3) * SZREG)(a0) 93*4a5d661aSToomas Soome REG_L s3, ((S3 + 3) * SZREG)(a0) 94*4a5d661aSToomas Soome REG_L s4, ((S4 + 3) * SZREG)(a0) 95*4a5d661aSToomas Soome REG_L s5, ((S5 + 3) * SZREG)(a0) 96*4a5d661aSToomas Soome REG_L s6, ((S6 + 3) * SZREG)(a0) 97*4a5d661aSToomas Soome REG_L s7, ((S7 + 3) * SZREG)(a0) 98*4a5d661aSToomas Soome REG_L sp, ((SP + 3) * SZREG)(a0) 99*4a5d661aSToomas Soome REG_L s8, ((S8 + 3) * SZREG)(a0) 100*4a5d661aSToomas Soome 101*4a5d661aSToomas Soome j ra 102*4a5d661aSToomas Soome move v0, a1 103*4a5d661aSToomas Soomebotch: 104*4a5d661aSToomas Soome jal _C_LABEL(longjmperror) 105*4a5d661aSToomas Soome nop 106*4a5d661aSToomas Soome jal _C_LABEL(abort) 107*4a5d661aSToomas Soome nop 108*4a5d661aSToomas SoomeEND(_longjmp) 109