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 2000-2002 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 <mdb/mdb_modapi.h>
30*0Sstevel@tonic-gate #include <sys/machelf.h>
31*0Sstevel@tonic-gate
32*0Sstevel@tonic-gate #include <libproc.h>
33*0Sstevel@tonic-gate #include <stdio.h>
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate #include "proc_kludges.h"
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate typedef struct prockuldge_mappings {
38*0Sstevel@tonic-gate struct ps_prochandle *pkm_Pr;
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate uint_t pkm_idx;
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate uint_t pkm_count;
43*0Sstevel@tonic-gate uint_t pkm_max;
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate prmap_t *pkm_mappings;
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate uint_t pkm_old_max;
48*0Sstevel@tonic-gate prmap_t *pkm_old_mappings;
49*0Sstevel@tonic-gate } prockludge_mappings_t;
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate /* ARGSUSED */
52*0Sstevel@tonic-gate static int
prockludge_mappings_iter(prockludge_mappings_t * pkm,const prmap_t * pmp,const char * object_name)53*0Sstevel@tonic-gate prockludge_mappings_iter(prockludge_mappings_t *pkm, const prmap_t *pmp,
54*0Sstevel@tonic-gate const char *object_name)
55*0Sstevel@tonic-gate {
56*0Sstevel@tonic-gate if (pkm->pkm_count >= pkm->pkm_max) {
57*0Sstevel@tonic-gate int s = pkm->pkm_max ? pkm->pkm_max * 2 : 16;
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate pkm->pkm_old_max = pkm->pkm_max;
60*0Sstevel@tonic-gate pkm->pkm_old_mappings = pkm->pkm_mappings;
61*0Sstevel@tonic-gate pkm->pkm_max = s;
62*0Sstevel@tonic-gate pkm->pkm_mappings = mdb_alloc(sizeof (prmap_t) * s, UM_SLEEP);
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate bcopy(pkm->pkm_old_mappings, pkm->pkm_mappings,
65*0Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_old_max);
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate mdb_free(pkm->pkm_old_mappings,
68*0Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_old_max);
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate pkm->pkm_old_mappings = NULL;
71*0Sstevel@tonic-gate pkm->pkm_old_max = 0;
72*0Sstevel@tonic-gate }
73*0Sstevel@tonic-gate bcopy(pmp, &pkm->pkm_mappings[pkm->pkm_count++], sizeof (prmap_t));
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate return (0);
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate int
prockludge_mappings_walk_init(mdb_walk_state_t * mws)79*0Sstevel@tonic-gate prockludge_mappings_walk_init(mdb_walk_state_t *mws)
80*0Sstevel@tonic-gate {
81*0Sstevel@tonic-gate struct ps_prochandle *Pr;
82*0Sstevel@tonic-gate int rc;
83*0Sstevel@tonic-gate
84*0Sstevel@tonic-gate prockludge_mappings_t *pkm;
85*0Sstevel@tonic-gate
86*0Sstevel@tonic-gate if (mdb_get_xdata("pshandle", &Pr, sizeof (Pr)) == -1) {
87*0Sstevel@tonic-gate mdb_warn("couldn't read pshandle xdata");
88*0Sstevel@tonic-gate return (WALK_ERR);
89*0Sstevel@tonic-gate }
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate pkm = mdb_zalloc(sizeof (prockludge_mappings_t), UM_SLEEP);
92*0Sstevel@tonic-gate pkm->pkm_Pr = Pr;
93*0Sstevel@tonic-gate mws->walk_data = pkm;
94*0Sstevel@tonic-gate
95*0Sstevel@tonic-gate rc = Pmapping_iter(Pr, (proc_map_f *)prockludge_mappings_iter, pkm);
96*0Sstevel@tonic-gate if (rc != 0) {
97*0Sstevel@tonic-gate mdb_warn("Pmapping_iter failed");
98*0Sstevel@tonic-gate /* clean up */
99*0Sstevel@tonic-gate prockludge_mappings_walk_fini(mws);
100*0Sstevel@tonic-gate return (WALK_ERR);
101*0Sstevel@tonic-gate }
102*0Sstevel@tonic-gate return (WALK_NEXT);
103*0Sstevel@tonic-gate }
104*0Sstevel@tonic-gate
105*0Sstevel@tonic-gate int
prockludge_mappings_walk_step(mdb_walk_state_t * wsp)106*0Sstevel@tonic-gate prockludge_mappings_walk_step(mdb_walk_state_t *wsp)
107*0Sstevel@tonic-gate {
108*0Sstevel@tonic-gate prockludge_mappings_t *pkm = wsp->walk_data;
109*0Sstevel@tonic-gate int status;
110*0Sstevel@tonic-gate
111*0Sstevel@tonic-gate if (pkm->pkm_idx >= pkm->pkm_count)
112*0Sstevel@tonic-gate return (WALK_DONE);
113*0Sstevel@tonic-gate
114*0Sstevel@tonic-gate status = wsp->walk_callback(0, &pkm->pkm_mappings[pkm->pkm_idx++],
115*0Sstevel@tonic-gate wsp->walk_cbdata);
116*0Sstevel@tonic-gate
117*0Sstevel@tonic-gate return (status);
118*0Sstevel@tonic-gate }
119*0Sstevel@tonic-gate
120*0Sstevel@tonic-gate void
prockludge_mappings_walk_fini(mdb_walk_state_t * wsp)121*0Sstevel@tonic-gate prockludge_mappings_walk_fini(mdb_walk_state_t *wsp)
122*0Sstevel@tonic-gate {
123*0Sstevel@tonic-gate prockludge_mappings_t *pkm = wsp->walk_data;
124*0Sstevel@tonic-gate if (pkm != NULL) {
125*0Sstevel@tonic-gate if (pkm->pkm_old_mappings != NULL) {
126*0Sstevel@tonic-gate mdb_free(pkm->pkm_old_mappings,
127*0Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_old_max);
128*0Sstevel@tonic-gate }
129*0Sstevel@tonic-gate if (pkm->pkm_mappings &&
130*0Sstevel@tonic-gate pkm->pkm_mappings != pkm->pkm_old_mappings) {
131*0Sstevel@tonic-gate mdb_free(pkm->pkm_mappings,
132*0Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_max);
133*0Sstevel@tonic-gate }
134*0Sstevel@tonic-gate mdb_free(pkm, sizeof (prockludge_mappings_t));
135*0Sstevel@tonic-gate }
136*0Sstevel@tonic-gate }
137*0Sstevel@tonic-gate
138*0Sstevel@tonic-gate static int add_count = 0;
139*0Sstevel@tonic-gate
140*0Sstevel@tonic-gate void
prockludge_add_walkers(void)141*0Sstevel@tonic-gate prockludge_add_walkers(void)
142*0Sstevel@tonic-gate {
143*0Sstevel@tonic-gate mdb_walker_t w;
144*0Sstevel@tonic-gate
145*0Sstevel@tonic-gate if (add_count++ == 0) {
146*0Sstevel@tonic-gate w.walk_name = KLUDGE_MAPWALK_NAME;
147*0Sstevel@tonic-gate w.walk_descr = "kludge: walk the process' prmap_ts";
148*0Sstevel@tonic-gate w.walk_init = prockludge_mappings_walk_init;
149*0Sstevel@tonic-gate w.walk_step = prockludge_mappings_walk_step;
150*0Sstevel@tonic-gate w.walk_fini = prockludge_mappings_walk_fini;
151*0Sstevel@tonic-gate w.walk_init_arg = NULL;
152*0Sstevel@tonic-gate
153*0Sstevel@tonic-gate if (mdb_add_walker(&w) == -1) {
154*0Sstevel@tonic-gate mdb_warn("unable to add walker "KLUDGE_MAPWALK_NAME);
155*0Sstevel@tonic-gate }
156*0Sstevel@tonic-gate }
157*0Sstevel@tonic-gate }
158*0Sstevel@tonic-gate
159*0Sstevel@tonic-gate void
prockludge_remove_walkers(void)160*0Sstevel@tonic-gate prockludge_remove_walkers(void)
161*0Sstevel@tonic-gate {
162*0Sstevel@tonic-gate if (--add_count == 0) {
163*0Sstevel@tonic-gate mdb_remove_walker(KLUDGE_MAPWALK_NAME);
164*0Sstevel@tonic-gate }
165*0Sstevel@tonic-gate }
166