1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate /* 27*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28*0Sstevel@tonic-gate * Use is subject to license terms. 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #include <sys/setjmp.h> 35*0Sstevel@tonic-gate #include "../common/ucontext.h" 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate int _getsp(); 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate int setjmp(env)40*0Sstevel@tonic-gatesetjmp(env) 41*0Sstevel@tonic-gate jmp_buf env; 42*0Sstevel@tonic-gate { 43*0Sstevel@tonic-gate register o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env; 44*0Sstevel@tonic-gate register int sp = _getsp(); 45*0Sstevel@tonic-gate ucontext_t uc; 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate /* 48*0Sstevel@tonic-gate * Get the current machine context. 49*0Sstevel@tonic-gate */ 50*0Sstevel@tonic-gate uc.uc_flags = UC_STACK; 51*0Sstevel@tonic-gate __getcontext(&uc); 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate /* 54*0Sstevel@tonic-gate * Note that the pc and former sp (fp) from the stack are valid 55*0Sstevel@tonic-gate * because the call to __getcontext must flush the user windows 56*0Sstevel@tonic-gate * to the stack. 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate bp->sjs_flags = 0; 59*0Sstevel@tonic-gate bp->sjs_sp = *((int *)sp+14); 60*0Sstevel@tonic-gate bp->sjs_pc = *((int *)sp+15) + 0x8; 61*0Sstevel@tonic-gate bp->sjs_sigmask[0] = 0; 62*0Sstevel@tonic-gate bp->sjs_sigmask[1] = 0; 63*0Sstevel@tonic-gate bp->sjs_sigmask[2] = 0; 64*0Sstevel@tonic-gate bp->sjs_stack = uc.uc_stack; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate return (0); 67*0Sstevel@tonic-gate } 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate void longjmp(env,val)71*0Sstevel@tonic-gatelongjmp(env, val) 72*0Sstevel@tonic-gate jmp_buf env; 73*0Sstevel@tonic-gate int val; 74*0Sstevel@tonic-gate { 75*0Sstevel@tonic-gate o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env; 76*0Sstevel@tonic-gate setjmp_struct_t sjmp, *sp; 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate sp = &sjmp; 79*0Sstevel@tonic-gate sp->sjs_flags = bp->sjs_flags; 80*0Sstevel@tonic-gate sp->sjs_sp = bp->sjs_sp; 81*0Sstevel@tonic-gate sp->sjs_pc = bp->sjs_pc; 82*0Sstevel@tonic-gate sp->sjs_fp = 0; 83*0Sstevel@tonic-gate sp->sjs_i7 = 0; 84*0Sstevel@tonic-gate sp->sjs_uclink = 0; 85*0Sstevel@tonic-gate sp->sjs_sigmask[0] = bp->sjs_sigmask[0]; 86*0Sstevel@tonic-gate sp->sjs_sigmask[1] = bp->sjs_sigmask[1]; 87*0Sstevel@tonic-gate sp->sjs_sigmask[2] = bp->sjs_sigmask[2]; 88*0Sstevel@tonic-gate sp->sjs_sigmask[3] = 0; 89*0Sstevel@tonic-gate sp->sjs_stack = bp->sjs_stack; 90*0Sstevel@tonic-gate _siglongjmp(sjmp, val); 91*0Sstevel@tonic-gate } 92