1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1998-2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdlib.h> 30 #include <unistd.h> 31 #include <errno.h> 32 #include <sys/types.h> 33 #include <sys/mman.h> 34 #include "libproc.h" 35 36 /* 37 * memcntl() system call -- executed by subject process 38 */ 39 40 int 41 pr_memcntl(struct ps_prochandle *Pr, 42 caddr_t addr, size_t len, int cmd, caddr_t arg, int attr, int mask) 43 { 44 sysret_t rval; /* return value from memcntl() */ 45 argdes_t argd[6]; /* arg descriptors for memcntl() */ 46 argdes_t *adp; 47 int error; 48 49 if (Pr == NULL) /* no subject process */ 50 return (memcntl(addr, len, cmd, arg, attr, mask)); 51 52 adp = &argd[0]; /* addr argument */ 53 adp->arg_value = (uintptr_t)addr; 54 adp->arg_object = NULL; 55 adp->arg_type = AT_BYVAL; 56 adp->arg_inout = AI_INPUT; 57 adp->arg_size = 0; 58 59 adp++; /* len argument */ 60 adp->arg_value = len; 61 adp->arg_object = NULL; 62 adp->arg_type = AT_BYVAL; 63 adp->arg_inout = AI_INPUT; 64 adp->arg_size = 0; 65 66 adp++; /* cmd argument */ 67 adp->arg_value = cmd; 68 adp->arg_object = NULL; 69 adp->arg_type = AT_BYVAL; 70 adp->arg_inout = AI_INPUT; 71 adp->arg_size = 0; 72 73 adp++; /* arg argument */ 74 if (cmd == MC_HAT_ADVISE) { 75 adp->arg_value = 0; 76 adp->arg_object = arg; 77 adp->arg_type = AT_BYREF; 78 adp->arg_inout = AI_INPUT; 79 #ifdef _LP64 80 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) 81 adp->arg_size = sizeof (struct memcntl_mha32); 82 else 83 adp->arg_size = sizeof (struct memcntl_mha); 84 #else 85 adp->arg_size = sizeof (struct memcntl_mha); 86 #endif 87 } else { 88 adp->arg_value = (uintptr_t)arg; 89 adp->arg_object = NULL; 90 adp->arg_type = AT_BYVAL; 91 adp->arg_inout = AI_INPUT; 92 adp->arg_size = 0; 93 } 94 95 adp++; /* attr argument */ 96 adp->arg_value = attr; 97 adp->arg_object = NULL; 98 adp->arg_type = AT_BYVAL; 99 adp->arg_inout = AI_INPUT; 100 adp->arg_size = 0; 101 102 adp++; /* mask argument */ 103 adp->arg_value = mask; 104 adp->arg_object = NULL; 105 adp->arg_type = AT_BYVAL; 106 adp->arg_inout = AI_INPUT; 107 adp->arg_size = 0; 108 109 error = Psyscall(Pr, &rval, SYS_memcntl, 6, &argd[0]); 110 111 if (error) { 112 errno = (error > 0)? error : ENOSYS; 113 return (-1); 114 } 115 return (0); 116 } 117