1*25c28e83SPiotr Jasiukajtis /* 2*25c28e83SPiotr Jasiukajtis * CDDL HEADER START 3*25c28e83SPiotr Jasiukajtis * 4*25c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 5*25c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 6*25c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 7*25c28e83SPiotr Jasiukajtis * 8*25c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*25c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 10*25c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 11*25c28e83SPiotr Jasiukajtis * and limitations under the License. 12*25c28e83SPiotr Jasiukajtis * 13*25c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 14*25c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*25c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 16*25c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 17*25c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 18*25c28e83SPiotr Jasiukajtis * 19*25c28e83SPiotr Jasiukajtis * CDDL HEADER END 20*25c28e83SPiotr Jasiukajtis */ 21*25c28e83SPiotr Jasiukajtis 22*25c28e83SPiotr Jasiukajtis /* 23*25c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 24*25c28e83SPiotr Jasiukajtis */ 25*25c28e83SPiotr Jasiukajtis /* 26*25c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 27*25c28e83SPiotr Jasiukajtis * Use is subject to license terms. 28*25c28e83SPiotr Jasiukajtis */ 29*25c28e83SPiotr Jasiukajtis 30*25c28e83SPiotr Jasiukajtis #pragma weak fex_get_handling = __fex_get_handling 31*25c28e83SPiotr Jasiukajtis #pragma weak fex_set_handling = __fex_set_handling 32*25c28e83SPiotr Jasiukajtis #pragma weak fex_getexcepthandler = __fex_getexcepthandler 33*25c28e83SPiotr Jasiukajtis #pragma weak fex_setexcepthandler = __fex_setexcepthandler 34*25c28e83SPiotr Jasiukajtis 35*25c28e83SPiotr Jasiukajtis #include "fenv_synonyms.h" 36*25c28e83SPiotr Jasiukajtis #include <fenv.h> 37*25c28e83SPiotr Jasiukajtis #include <ucontext.h> 38*25c28e83SPiotr Jasiukajtis #include <thread.h> 39*25c28e83SPiotr Jasiukajtis #include "fex_handler.h" 40*25c28e83SPiotr Jasiukajtis 41*25c28e83SPiotr Jasiukajtis int fex_get_handling(int e) 42*25c28e83SPiotr Jasiukajtis { 43*25c28e83SPiotr Jasiukajtis struct fex_handler_data *thr_handlers; 44*25c28e83SPiotr Jasiukajtis int i; 45*25c28e83SPiotr Jasiukajtis 46*25c28e83SPiotr Jasiukajtis thr_handlers = __fex_get_thr_handlers(); 47*25c28e83SPiotr Jasiukajtis for (i = 0; i < FEX_NUM_EXC; i++) 48*25c28e83SPiotr Jasiukajtis if (e & (1 << i)) 49*25c28e83SPiotr Jasiukajtis return thr_handlers[i].__mode; 50*25c28e83SPiotr Jasiukajtis return FEX_NOHANDLER; 51*25c28e83SPiotr Jasiukajtis } 52*25c28e83SPiotr Jasiukajtis 53*25c28e83SPiotr Jasiukajtis int fex_set_handling(int e, int mode, void (*handler)()) 54*25c28e83SPiotr Jasiukajtis { 55*25c28e83SPiotr Jasiukajtis struct fex_handler_data *thr_handlers; 56*25c28e83SPiotr Jasiukajtis int i; 57*25c28e83SPiotr Jasiukajtis 58*25c28e83SPiotr Jasiukajtis if (e & ~((1 << FEX_NUM_EXC) - 1)) 59*25c28e83SPiotr Jasiukajtis return 0; 60*25c28e83SPiotr Jasiukajtis thr_handlers = __fex_get_thr_handlers(); 61*25c28e83SPiotr Jasiukajtis for (i = 0; i < FEX_NUM_EXC; i++) { 62*25c28e83SPiotr Jasiukajtis if (e & (1 << i)) { 63*25c28e83SPiotr Jasiukajtis thr_handlers[i].__mode = mode; 64*25c28e83SPiotr Jasiukajtis thr_handlers[i].__handler = handler; 65*25c28e83SPiotr Jasiukajtis } 66*25c28e83SPiotr Jasiukajtis } 67*25c28e83SPiotr Jasiukajtis __fex_update_te(); 68*25c28e83SPiotr Jasiukajtis return 1; 69*25c28e83SPiotr Jasiukajtis } 70*25c28e83SPiotr Jasiukajtis 71*25c28e83SPiotr Jasiukajtis void fex_getexcepthandler(fex_handler_t *buf, int e) 72*25c28e83SPiotr Jasiukajtis { 73*25c28e83SPiotr Jasiukajtis struct fex_handler_data *thr_handlers; 74*25c28e83SPiotr Jasiukajtis int i; 75*25c28e83SPiotr Jasiukajtis 76*25c28e83SPiotr Jasiukajtis thr_handlers = __fex_get_thr_handlers(); 77*25c28e83SPiotr Jasiukajtis for (i = 0; i < FEX_NUM_EXC; i++) 78*25c28e83SPiotr Jasiukajtis if (e & (1 << i)) 79*25c28e83SPiotr Jasiukajtis (*buf)[i] = thr_handlers[i]; 80*25c28e83SPiotr Jasiukajtis } 81*25c28e83SPiotr Jasiukajtis 82*25c28e83SPiotr Jasiukajtis void fex_setexcepthandler(const fex_handler_t *buf, int e) 83*25c28e83SPiotr Jasiukajtis { 84*25c28e83SPiotr Jasiukajtis struct fex_handler_data *thr_handlers; 85*25c28e83SPiotr Jasiukajtis int i; 86*25c28e83SPiotr Jasiukajtis 87*25c28e83SPiotr Jasiukajtis thr_handlers = __fex_get_thr_handlers(); 88*25c28e83SPiotr Jasiukajtis for (i = 0; i < FEX_NUM_EXC; i++) 89*25c28e83SPiotr Jasiukajtis if (e & (1 << i)) 90*25c28e83SPiotr Jasiukajtis thr_handlers[i] = (*buf)[i]; 91*25c28e83SPiotr Jasiukajtis __fex_update_te(); 92*25c28e83SPiotr Jasiukajtis } 93