1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*7c478bd9Sstevel@tonic-gate 24*7c478bd9Sstevel@tonic-gate 25*7c478bd9Sstevel@tonic-gate /* 26*7c478bd9Sstevel@tonic-gate * Copyright 1994-2003 Sun Microsystems, Inc. All rights reserved. 27*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 28*7c478bd9Sstevel@tonic-gate */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 33*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 34*7c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 35*7c478bd9Sstevel@tonic-gate #include <sys/systm.h> 36*7c478bd9Sstevel@tonic-gate #include <sys/errno.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/proc.h> 38*7c478bd9Sstevel@tonic-gate #include <sys/fault.h> 39*7c478bd9Sstevel@tonic-gate #include <sys/signal.h> 40*7c478bd9Sstevel@tonic-gate #include <sys/schedctl.h> 41*7c478bd9Sstevel@tonic-gate #include <sys/debug.h> 42*7c478bd9Sstevel@tonic-gate 43*7c478bd9Sstevel@tonic-gate int64_t 44*7c478bd9Sstevel@tonic-gate lwp_sigmask(int how, uint_t bits0, uint_t bits1) 45*7c478bd9Sstevel@tonic-gate { 46*7c478bd9Sstevel@tonic-gate kthread_t *t = curthread; 47*7c478bd9Sstevel@tonic-gate proc_t *p = ttoproc(t); 48*7c478bd9Sstevel@tonic-gate rval_t rv; 49*7c478bd9Sstevel@tonic-gate 50*7c478bd9Sstevel@tonic-gate mutex_enter(&p->p_lock); 51*7c478bd9Sstevel@tonic-gate schedctl_finish_sigblock(t); 52*7c478bd9Sstevel@tonic-gate 53*7c478bd9Sstevel@tonic-gate bits0 &= (FILLSET0 & ~CANTMASK0); 54*7c478bd9Sstevel@tonic-gate bits1 &= (FILLSET1 & ~CANTMASK1); 55*7c478bd9Sstevel@tonic-gate 56*7c478bd9Sstevel@tonic-gate rv.r_val1 = t->t_hold.__sigbits[0]; 57*7c478bd9Sstevel@tonic-gate rv.r_val2 = t->t_hold.__sigbits[1]; 58*7c478bd9Sstevel@tonic-gate 59*7c478bd9Sstevel@tonic-gate switch (how) { 60*7c478bd9Sstevel@tonic-gate case SIG_BLOCK: 61*7c478bd9Sstevel@tonic-gate t->t_hold.__sigbits[0] |= bits0; 62*7c478bd9Sstevel@tonic-gate t->t_hold.__sigbits[1] |= bits1; 63*7c478bd9Sstevel@tonic-gate break; 64*7c478bd9Sstevel@tonic-gate case SIG_UNBLOCK: 65*7c478bd9Sstevel@tonic-gate t->t_hold.__sigbits[0] &= ~bits0; 66*7c478bd9Sstevel@tonic-gate t->t_hold.__sigbits[1] &= ~bits1; 67*7c478bd9Sstevel@tonic-gate if (sigcheck(p, t)) 68*7c478bd9Sstevel@tonic-gate t->t_sig_check = 1; 69*7c478bd9Sstevel@tonic-gate break; 70*7c478bd9Sstevel@tonic-gate case SIG_SETMASK: 71*7c478bd9Sstevel@tonic-gate t->t_hold.__sigbits[0] = bits0; 72*7c478bd9Sstevel@tonic-gate t->t_hold.__sigbits[1] = bits1; 73*7c478bd9Sstevel@tonic-gate if (sigcheck(p, t)) 74*7c478bd9Sstevel@tonic-gate t->t_sig_check = 1; 75*7c478bd9Sstevel@tonic-gate break; 76*7c478bd9Sstevel@tonic-gate } 77*7c478bd9Sstevel@tonic-gate 78*7c478bd9Sstevel@tonic-gate mutex_exit(&p->p_lock); 79*7c478bd9Sstevel@tonic-gate return (rv.r_vals); 80*7c478bd9Sstevel@tonic-gate } 81*7c478bd9Sstevel@tonic-gate 82*7c478bd9Sstevel@tonic-gate /* 83*7c478bd9Sstevel@tonic-gate * This system call is no longer called from libc. 84*7c478bd9Sstevel@tonic-gate * It exists solely for the benefit of statically-linked 85*7c478bd9Sstevel@tonic-gate * binaries from the past. It should be eliminated. 86*7c478bd9Sstevel@tonic-gate */ 87*7c478bd9Sstevel@tonic-gate int 88*7c478bd9Sstevel@tonic-gate sigprocmask(int how, sigset_t *setp, sigset_t *osetp) 89*7c478bd9Sstevel@tonic-gate { 90*7c478bd9Sstevel@tonic-gate sigset_t set; 91*7c478bd9Sstevel@tonic-gate k_sigset_t kset; 92*7c478bd9Sstevel@tonic-gate rval_t rv; 93*7c478bd9Sstevel@tonic-gate 94*7c478bd9Sstevel@tonic-gate /* 95*7c478bd9Sstevel@tonic-gate * User's oset and set might be the same address, so copyin first and 96*7c478bd9Sstevel@tonic-gate * save before copying out. 97*7c478bd9Sstevel@tonic-gate */ 98*7c478bd9Sstevel@tonic-gate if (setp) { 99*7c478bd9Sstevel@tonic-gate switch (how) { 100*7c478bd9Sstevel@tonic-gate case SIG_BLOCK: 101*7c478bd9Sstevel@tonic-gate case SIG_UNBLOCK: 102*7c478bd9Sstevel@tonic-gate case SIG_SETMASK: 103*7c478bd9Sstevel@tonic-gate break; 104*7c478bd9Sstevel@tonic-gate default: 105*7c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 106*7c478bd9Sstevel@tonic-gate } 107*7c478bd9Sstevel@tonic-gate if (copyin((caddr_t)setp, (caddr_t)&set, sizeof (sigset_t))) 108*7c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 109*7c478bd9Sstevel@tonic-gate sigutok(&set, &kset); 110*7c478bd9Sstevel@tonic-gate } else { 111*7c478bd9Sstevel@tonic-gate /* none of SIG_BLOCK, SIG_UNBLOCK, SIG_SETMASK equals 0 */ 112*7c478bd9Sstevel@tonic-gate how = 0; 113*7c478bd9Sstevel@tonic-gate sigemptyset(&kset); 114*7c478bd9Sstevel@tonic-gate } 115*7c478bd9Sstevel@tonic-gate 116*7c478bd9Sstevel@tonic-gate rv.r_vals = lwp_sigmask(how, kset.__sigbits[0], kset.__sigbits[1]); 117*7c478bd9Sstevel@tonic-gate 118*7c478bd9Sstevel@tonic-gate if (osetp) { 119*7c478bd9Sstevel@tonic-gate kset.__sigbits[0] = rv.r_val1; 120*7c478bd9Sstevel@tonic-gate kset.__sigbits[1] = rv.r_val2; 121*7c478bd9Sstevel@tonic-gate sigktou(&kset, &set); 122*7c478bd9Sstevel@tonic-gate if (copyout((caddr_t)&set, (caddr_t)osetp, sizeof (sigset_t))) 123*7c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 124*7c478bd9Sstevel@tonic-gate } 125*7c478bd9Sstevel@tonic-gate 126*7c478bd9Sstevel@tonic-gate return (0); 127*7c478bd9Sstevel@tonic-gate } 128