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 /* 23*0Sstevel@tonic-gate * Copyright 1997-2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdlib.h> 30*0Sstevel@tonic-gate #include <unistd.h> 31*0Sstevel@tonic-gate #include <errno.h> 32*0Sstevel@tonic-gate #include <sys/lwp.h> 33*0Sstevel@tonic-gate #include "libproc.h" 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate /* 36*0Sstevel@tonic-gate * exit() system call -- executed by subject process. 37*0Sstevel@tonic-gate */ 38*0Sstevel@tonic-gate int 39*0Sstevel@tonic-gate pr_exit(struct ps_prochandle *Pr, int status) 40*0Sstevel@tonic-gate { 41*0Sstevel@tonic-gate sysret_t rval; /* return value from exit() */ 42*0Sstevel@tonic-gate argdes_t argd[1]; /* arg descriptors for exit() */ 43*0Sstevel@tonic-gate argdes_t *adp; 44*0Sstevel@tonic-gate int error; 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate if (Pr == NULL) { /* no subject process */ 47*0Sstevel@tonic-gate exit(status); 48*0Sstevel@tonic-gate return (0); /* not reached */ 49*0Sstevel@tonic-gate } 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate adp = &argd[0]; /* status argument */ 52*0Sstevel@tonic-gate adp->arg_value = status; 53*0Sstevel@tonic-gate adp->arg_object = NULL; 54*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL; 55*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT; 56*0Sstevel@tonic-gate adp->arg_size = 0; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_exit, 1, &argd[0]); 59*0Sstevel@tonic-gate /* actually -- never returns. Expect ENOENT */ 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate if (error < 0) { 62*0Sstevel@tonic-gate if (errno == ENOENT) /* expected case */ 63*0Sstevel@tonic-gate error = ENOENT; 64*0Sstevel@tonic-gate else 65*0Sstevel@tonic-gate error = ENOSYS; 66*0Sstevel@tonic-gate } 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate if (error == 0) /* can't happen? */ 69*0Sstevel@tonic-gate return (rval.sys_rval1); 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate if (error == ENOENT) /* expected case */ 72*0Sstevel@tonic-gate return (0); 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate errno = error; 75*0Sstevel@tonic-gate return (-1); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /* 79*0Sstevel@tonic-gate * lwp_exit() system call -- executed by subject lwp. 80*0Sstevel@tonic-gate */ 81*0Sstevel@tonic-gate int 82*0Sstevel@tonic-gate pr_lwp_exit(struct ps_prochandle *Pr) 83*0Sstevel@tonic-gate { 84*0Sstevel@tonic-gate sysret_t rval; /* return value from lwp_exit() */ 85*0Sstevel@tonic-gate int error; 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate if (Pr == NULL) { /* no subject process */ 88*0Sstevel@tonic-gate (void) syscall(SYS_lwp_exit); 89*0Sstevel@tonic-gate return (0); /* not reached */ 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_lwp_exit, 0, NULL); 93*0Sstevel@tonic-gate /* actually -- never returns. Expect ENOENT */ 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate if (error < 0) { 96*0Sstevel@tonic-gate if (errno == ENOENT) /* expected case */ 97*0Sstevel@tonic-gate error = ENOENT; 98*0Sstevel@tonic-gate else 99*0Sstevel@tonic-gate error = ENOSYS; 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate if (error == 0) /* can't happen? */ 103*0Sstevel@tonic-gate return (rval.sys_rval1); 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate if (error == ENOENT) /* expected case */ 106*0Sstevel@tonic-gate return (0); 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate errno = error; 109*0Sstevel@tonic-gate return (-1); 110*0Sstevel@tonic-gate } 111