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 (c) 1997-2000 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
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/mman.h>
33*0Sstevel@tonic-gate #include "libproc.h"
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate * mmap() system call -- executed by subject process
37*0Sstevel@tonic-gate */
38*0Sstevel@tonic-gate void *
pr_mmap(struct ps_prochandle * Pr,void * addr,size_t len,int prot,int flags,int fd,off_t off)39*0Sstevel@tonic-gate pr_mmap(struct ps_prochandle *Pr,
40*0Sstevel@tonic-gate void *addr, size_t len, int prot, int flags, int fd, off_t off)
41*0Sstevel@tonic-gate {
42*0Sstevel@tonic-gate sysret_t rval; /* return value from mmap() */
43*0Sstevel@tonic-gate argdes_t argd[6]; /* arg descriptors for mmap() */
44*0Sstevel@tonic-gate argdes_t *adp;
45*0Sstevel@tonic-gate int error;
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate if (Pr == NULL) /* no subject process */
48*0Sstevel@tonic-gate return (mmap(addr, len, prot, flags, fd, off));
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate adp = &argd[0]; /* addr argument */
51*0Sstevel@tonic-gate adp->arg_value = (long)addr;
52*0Sstevel@tonic-gate adp->arg_object = NULL;
53*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
54*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
55*0Sstevel@tonic-gate adp->arg_size = 0;
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate adp++; /* len argument */
58*0Sstevel@tonic-gate adp->arg_value = (long)len;
59*0Sstevel@tonic-gate adp->arg_object = NULL;
60*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
61*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
62*0Sstevel@tonic-gate adp->arg_size = 0;
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate adp++; /* prot argument */
65*0Sstevel@tonic-gate adp->arg_value = (long)prot;
66*0Sstevel@tonic-gate adp->arg_object = NULL;
67*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
68*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
69*0Sstevel@tonic-gate adp->arg_size = 0;
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate adp++; /* flags argument */
72*0Sstevel@tonic-gate adp->arg_value = (long)(_MAP_NEW|flags);
73*0Sstevel@tonic-gate adp->arg_object = NULL;
74*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
75*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
76*0Sstevel@tonic-gate adp->arg_size = 0;
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate adp++; /* fd argument */
79*0Sstevel@tonic-gate adp->arg_value = (long)fd;
80*0Sstevel@tonic-gate adp->arg_object = NULL;
81*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
82*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
83*0Sstevel@tonic-gate adp->arg_size = 0;
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate adp++; /* off argument */
86*0Sstevel@tonic-gate adp->arg_value = (long)off;
87*0Sstevel@tonic-gate adp->arg_object = NULL;
88*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
89*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
90*0Sstevel@tonic-gate adp->arg_size = 0;
91*0Sstevel@tonic-gate
92*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_mmap, 6, &argd[0]);
93*0Sstevel@tonic-gate
94*0Sstevel@tonic-gate if (error) {
95*0Sstevel@tonic-gate errno = (error > 0)? error : ENOSYS;
96*0Sstevel@tonic-gate return ((void *)(-1));
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate return ((void *)rval.sys_rval1);
99*0Sstevel@tonic-gate }
100*0Sstevel@tonic-gate
101*0Sstevel@tonic-gate /*
102*0Sstevel@tonic-gate * munmap() system call -- executed by subject process
103*0Sstevel@tonic-gate */
104*0Sstevel@tonic-gate int
pr_munmap(struct ps_prochandle * Pr,void * addr,size_t len)105*0Sstevel@tonic-gate pr_munmap(struct ps_prochandle *Pr, void *addr, size_t len)
106*0Sstevel@tonic-gate {
107*0Sstevel@tonic-gate sysret_t rval; /* return value from munmap() */
108*0Sstevel@tonic-gate argdes_t argd[2]; /* arg descriptors for munmap() */
109*0Sstevel@tonic-gate argdes_t *adp;
110*0Sstevel@tonic-gate int error;
111*0Sstevel@tonic-gate
112*0Sstevel@tonic-gate if (Pr == NULL) /* no subject process */
113*0Sstevel@tonic-gate return (munmap(addr, len));
114*0Sstevel@tonic-gate
115*0Sstevel@tonic-gate adp = &argd[0]; /* addr argument */
116*0Sstevel@tonic-gate adp->arg_value = (long)addr;
117*0Sstevel@tonic-gate adp->arg_object = NULL;
118*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
119*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
120*0Sstevel@tonic-gate adp->arg_size = 0;
121*0Sstevel@tonic-gate
122*0Sstevel@tonic-gate adp++; /* len argument */
123*0Sstevel@tonic-gate adp->arg_value = (long)len;
124*0Sstevel@tonic-gate adp->arg_object = NULL;
125*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
126*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
127*0Sstevel@tonic-gate adp->arg_size = 0;
128*0Sstevel@tonic-gate
129*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_munmap, 2, &argd[0]);
130*0Sstevel@tonic-gate
131*0Sstevel@tonic-gate if (error) {
132*0Sstevel@tonic-gate errno = (error > 0)? error : ENOSYS;
133*0Sstevel@tonic-gate return (-1);
134*0Sstevel@tonic-gate }
135*0Sstevel@tonic-gate return (rval.sys_rval1);
136*0Sstevel@tonic-gate }
137*0Sstevel@tonic-gate
138*0Sstevel@tonic-gate /*
139*0Sstevel@tonic-gate * zmap() -- convenience function; mmap(MAP_ANON) executed by subject process.
140*0Sstevel@tonic-gate */
141*0Sstevel@tonic-gate void *
pr_zmap(struct ps_prochandle * Pr,void * addr,size_t len,int prot,int flags)142*0Sstevel@tonic-gate pr_zmap(struct ps_prochandle *Pr, void *addr, size_t len, int prot, int flags)
143*0Sstevel@tonic-gate {
144*0Sstevel@tonic-gate return (pr_mmap(Pr, addr, len, prot, flags | MAP_ANON, -1, (off_t)0));
145*0Sstevel@tonic-gate }
146