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 "ucontext.h" 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate int _getsp(); 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate int 40*0Sstevel@tonic-gate sigsetjmp(env, savemask) 41*0Sstevel@tonic-gate sigjmp_buf env; 42*0Sstevel@tonic-gate int savemask; 43*0Sstevel@tonic-gate { 44*0Sstevel@tonic-gate register o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env; 45*0Sstevel@tonic-gate register int sp = _getsp(); 46*0Sstevel@tonic-gate ucontext_t uc; 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate /* 49*0Sstevel@tonic-gate * Get the current machine context. 50*0Sstevel@tonic-gate */ 51*0Sstevel@tonic-gate uc.uc_flags = UC_STACK | UC_SIGMASK; 52*0Sstevel@tonic-gate __getcontext(&uc); 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate /* 55*0Sstevel@tonic-gate * Note that the pc and former sp (fp) from the stack are valid 56*0Sstevel@tonic-gate * because the call to __getcontext must flush the user windows 57*0Sstevel@tonic-gate * to the stack. 58*0Sstevel@tonic-gate */ 59*0Sstevel@tonic-gate bp->sjs_flags = 0; 60*0Sstevel@tonic-gate bp->sjs_sp = *((int *)sp+14); 61*0Sstevel@tonic-gate bp->sjs_pc = *((int *)sp+15) + 0x8; 62*0Sstevel@tonic-gate bp->sjs_stack = uc.uc_stack; 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate if (savemask) { 65*0Sstevel@tonic-gate /* save the mask */ 66*0Sstevel@tonic-gate bp->sjs_flags |= JB_SAVEMASK; 67*0Sstevel@tonic-gate memcpy(bp->sjs_sigmask, &(uc.uc_sigmask), 3 * sizeof (int)); 68*0Sstevel@tonic-gate } else { 69*0Sstevel@tonic-gate memset(bp->sjs_sigmask, 0, 3 * sizeof (int)); 70*0Sstevel@tonic-gate } 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate return (0); 73*0Sstevel@tonic-gate } 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate void 77*0Sstevel@tonic-gate siglongjmp(env, val) 78*0Sstevel@tonic-gate sigjmp_buf env; 79*0Sstevel@tonic-gate int val; 80*0Sstevel@tonic-gate { 81*0Sstevel@tonic-gate o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env; 82*0Sstevel@tonic-gate setjmp_struct_t sjmp, *sp; 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate sp = &sjmp; 85*0Sstevel@tonic-gate sp->sjs_flags = bp->sjs_flags; 86*0Sstevel@tonic-gate sp->sjs_sp = bp->sjs_sp; 87*0Sstevel@tonic-gate sp->sjs_pc = bp->sjs_pc; 88*0Sstevel@tonic-gate sp->sjs_fp = 0; 89*0Sstevel@tonic-gate sp->sjs_i7 = 0; 90*0Sstevel@tonic-gate sp->sjs_uclink = 0; 91*0Sstevel@tonic-gate sp->sjs_sigmask[0] = bp->sjs_sigmask[0]; 92*0Sstevel@tonic-gate sp->sjs_sigmask[1] = bp->sjs_sigmask[1]; 93*0Sstevel@tonic-gate sp->sjs_sigmask[2] = bp->sjs_sigmask[2]; 94*0Sstevel@tonic-gate sp->sjs_sigmask[3] = 0; 95*0Sstevel@tonic-gate sp->sjs_stack = bp->sjs_stack; 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate _siglongjmp(sjmp, val); 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate int 101*0Sstevel@tonic-gate _setjmp(env) 102*0Sstevel@tonic-gate jmp_buf env; 103*0Sstevel@tonic-gate { 104*0Sstevel@tonic-gate register o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env; 105*0Sstevel@tonic-gate register int sp = _getsp(); 106*0Sstevel@tonic-gate ucontext_t uc; 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate /* 109*0Sstevel@tonic-gate * Get the current machine context. 110*0Sstevel@tonic-gate */ 111*0Sstevel@tonic-gate uc.uc_flags = UC_STACK; 112*0Sstevel@tonic-gate __getcontext(&uc); 113*0Sstevel@tonic-gate 114*0Sstevel@tonic-gate /* 115*0Sstevel@tonic-gate * Note that the pc and former sp (fp) from the stack are valid 116*0Sstevel@tonic-gate * because the call to __getcontext must flush the user windows 117*0Sstevel@tonic-gate * to the stack. 118*0Sstevel@tonic-gate */ 119*0Sstevel@tonic-gate bp->sjs_flags = 0; 120*0Sstevel@tonic-gate bp->sjs_sp = *((int *)sp+14); 121*0Sstevel@tonic-gate bp->sjs_pc = *((int *)sp+15) + 0x8; 122*0Sstevel@tonic-gate bp->sjs_sigmask[0] = 0; 123*0Sstevel@tonic-gate bp->sjs_sigmask[1] = 0; 124*0Sstevel@tonic-gate bp->sjs_sigmask[2] = 0; 125*0Sstevel@tonic-gate bp->sjs_stack = uc.uc_stack; 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate return (0); 128*0Sstevel@tonic-gate } 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate 131*0Sstevel@tonic-gate void 132*0Sstevel@tonic-gate _longjmp(env, val) 133*0Sstevel@tonic-gate jmp_buf env; 134*0Sstevel@tonic-gate int val; 135*0Sstevel@tonic-gate { 136*0Sstevel@tonic-gate o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env; 137*0Sstevel@tonic-gate setjmp_struct_t sjmp, *sp; 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate sp = &sjmp; 140*0Sstevel@tonic-gate sp->sjs_flags = bp->sjs_flags; 141*0Sstevel@tonic-gate sp->sjs_sp = bp->sjs_sp; 142*0Sstevel@tonic-gate sp->sjs_pc = bp->sjs_pc; 143*0Sstevel@tonic-gate sp->sjs_fp = 0; 144*0Sstevel@tonic-gate sp->sjs_i7 = 0; 145*0Sstevel@tonic-gate sp->sjs_uclink = 0; 146*0Sstevel@tonic-gate sp->sjs_sigmask[0] = bp->sjs_sigmask[0]; 147*0Sstevel@tonic-gate sp->sjs_sigmask[1] = bp->sjs_sigmask[1]; 148*0Sstevel@tonic-gate sp->sjs_sigmask[2] = bp->sjs_sigmask[2]; 149*0Sstevel@tonic-gate sp->sjs_sigmask[3] = 0; 150*0Sstevel@tonic-gate sp->sjs_stack = bp->sjs_stack; 151*0Sstevel@tonic-gate 152*0Sstevel@tonic-gate _siglongjmp(sjmp, val); 153*0Sstevel@tonic-gate } 154