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 /*
23*7c478bd9Sstevel@tonic-gate * Copyright 2000-2002 Sun Microsystems, Inc. All rights reserved.
24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #include <mdb/mdb_modapi.h>
28*7c478bd9Sstevel@tonic-gate #include <sys/machelf.h>
29*7c478bd9Sstevel@tonic-gate
30*7c478bd9Sstevel@tonic-gate #include <libproc.h>
31*7c478bd9Sstevel@tonic-gate #include <stdio.h>
32*7c478bd9Sstevel@tonic-gate
33*7c478bd9Sstevel@tonic-gate #include "proc_kludges.h"
34*7c478bd9Sstevel@tonic-gate
35*7c478bd9Sstevel@tonic-gate typedef struct prockuldge_mappings {
36*7c478bd9Sstevel@tonic-gate struct ps_prochandle *pkm_Pr;
37*7c478bd9Sstevel@tonic-gate
38*7c478bd9Sstevel@tonic-gate uint_t pkm_idx;
39*7c478bd9Sstevel@tonic-gate
40*7c478bd9Sstevel@tonic-gate uint_t pkm_count;
41*7c478bd9Sstevel@tonic-gate uint_t pkm_max;
42*7c478bd9Sstevel@tonic-gate
43*7c478bd9Sstevel@tonic-gate prmap_t *pkm_mappings;
44*7c478bd9Sstevel@tonic-gate
45*7c478bd9Sstevel@tonic-gate uint_t pkm_old_max;
46*7c478bd9Sstevel@tonic-gate prmap_t *pkm_old_mappings;
47*7c478bd9Sstevel@tonic-gate } prockludge_mappings_t;
48*7c478bd9Sstevel@tonic-gate
49*7c478bd9Sstevel@tonic-gate /* ARGSUSED */
50*7c478bd9Sstevel@tonic-gate static int
prockludge_mappings_iter(prockludge_mappings_t * pkm,const prmap_t * pmp,const char * object_name)51*7c478bd9Sstevel@tonic-gate prockludge_mappings_iter(prockludge_mappings_t *pkm, const prmap_t *pmp,
52*7c478bd9Sstevel@tonic-gate const char *object_name)
53*7c478bd9Sstevel@tonic-gate {
54*7c478bd9Sstevel@tonic-gate if (pkm->pkm_count >= pkm->pkm_max) {
55*7c478bd9Sstevel@tonic-gate int s = pkm->pkm_max ? pkm->pkm_max * 2 : 16;
56*7c478bd9Sstevel@tonic-gate
57*7c478bd9Sstevel@tonic-gate pkm->pkm_old_max = pkm->pkm_max;
58*7c478bd9Sstevel@tonic-gate pkm->pkm_old_mappings = pkm->pkm_mappings;
59*7c478bd9Sstevel@tonic-gate pkm->pkm_max = s;
60*7c478bd9Sstevel@tonic-gate pkm->pkm_mappings = mdb_alloc(sizeof (prmap_t) * s, UM_SLEEP);
61*7c478bd9Sstevel@tonic-gate
62*7c478bd9Sstevel@tonic-gate bcopy(pkm->pkm_old_mappings, pkm->pkm_mappings,
63*7c478bd9Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_old_max);
64*7c478bd9Sstevel@tonic-gate
65*7c478bd9Sstevel@tonic-gate mdb_free(pkm->pkm_old_mappings,
66*7c478bd9Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_old_max);
67*7c478bd9Sstevel@tonic-gate
68*7c478bd9Sstevel@tonic-gate pkm->pkm_old_mappings = NULL;
69*7c478bd9Sstevel@tonic-gate pkm->pkm_old_max = 0;
70*7c478bd9Sstevel@tonic-gate }
71*7c478bd9Sstevel@tonic-gate bcopy(pmp, &pkm->pkm_mappings[pkm->pkm_count++], sizeof (prmap_t));
72*7c478bd9Sstevel@tonic-gate
73*7c478bd9Sstevel@tonic-gate return (0);
74*7c478bd9Sstevel@tonic-gate }
75*7c478bd9Sstevel@tonic-gate
76*7c478bd9Sstevel@tonic-gate int
prockludge_mappings_walk_init(mdb_walk_state_t * mws)77*7c478bd9Sstevel@tonic-gate prockludge_mappings_walk_init(mdb_walk_state_t *mws)
78*7c478bd9Sstevel@tonic-gate {
79*7c478bd9Sstevel@tonic-gate struct ps_prochandle *Pr;
80*7c478bd9Sstevel@tonic-gate int rc;
81*7c478bd9Sstevel@tonic-gate
82*7c478bd9Sstevel@tonic-gate prockludge_mappings_t *pkm;
83*7c478bd9Sstevel@tonic-gate
84*7c478bd9Sstevel@tonic-gate if (mdb_get_xdata("pshandle", &Pr, sizeof (Pr)) == -1) {
85*7c478bd9Sstevel@tonic-gate mdb_warn("couldn't read pshandle xdata");
86*7c478bd9Sstevel@tonic-gate return (WALK_ERR);
87*7c478bd9Sstevel@tonic-gate }
88*7c478bd9Sstevel@tonic-gate
89*7c478bd9Sstevel@tonic-gate pkm = mdb_zalloc(sizeof (prockludge_mappings_t), UM_SLEEP);
90*7c478bd9Sstevel@tonic-gate pkm->pkm_Pr = Pr;
91*7c478bd9Sstevel@tonic-gate mws->walk_data = pkm;
92*7c478bd9Sstevel@tonic-gate
93*7c478bd9Sstevel@tonic-gate rc = Pmapping_iter(Pr, (proc_map_f *)prockludge_mappings_iter, pkm);
94*7c478bd9Sstevel@tonic-gate if (rc != 0) {
95*7c478bd9Sstevel@tonic-gate mdb_warn("Pmapping_iter failed");
96*7c478bd9Sstevel@tonic-gate /* clean up */
97*7c478bd9Sstevel@tonic-gate prockludge_mappings_walk_fini(mws);
98*7c478bd9Sstevel@tonic-gate return (WALK_ERR);
99*7c478bd9Sstevel@tonic-gate }
100*7c478bd9Sstevel@tonic-gate return (WALK_NEXT);
101*7c478bd9Sstevel@tonic-gate }
102*7c478bd9Sstevel@tonic-gate
103*7c478bd9Sstevel@tonic-gate int
prockludge_mappings_walk_step(mdb_walk_state_t * wsp)104*7c478bd9Sstevel@tonic-gate prockludge_mappings_walk_step(mdb_walk_state_t *wsp)
105*7c478bd9Sstevel@tonic-gate {
106*7c478bd9Sstevel@tonic-gate prockludge_mappings_t *pkm = wsp->walk_data;
107*7c478bd9Sstevel@tonic-gate int status;
108*7c478bd9Sstevel@tonic-gate
109*7c478bd9Sstevel@tonic-gate if (pkm->pkm_idx >= pkm->pkm_count)
110*7c478bd9Sstevel@tonic-gate return (WALK_DONE);
111*7c478bd9Sstevel@tonic-gate
112*7c478bd9Sstevel@tonic-gate status = wsp->walk_callback(0, &pkm->pkm_mappings[pkm->pkm_idx++],
113*7c478bd9Sstevel@tonic-gate wsp->walk_cbdata);
114*7c478bd9Sstevel@tonic-gate
115*7c478bd9Sstevel@tonic-gate return (status);
116*7c478bd9Sstevel@tonic-gate }
117*7c478bd9Sstevel@tonic-gate
118*7c478bd9Sstevel@tonic-gate void
prockludge_mappings_walk_fini(mdb_walk_state_t * wsp)119*7c478bd9Sstevel@tonic-gate prockludge_mappings_walk_fini(mdb_walk_state_t *wsp)
120*7c478bd9Sstevel@tonic-gate {
121*7c478bd9Sstevel@tonic-gate prockludge_mappings_t *pkm = wsp->walk_data;
122*7c478bd9Sstevel@tonic-gate if (pkm != NULL) {
123*7c478bd9Sstevel@tonic-gate if (pkm->pkm_old_mappings != NULL) {
124*7c478bd9Sstevel@tonic-gate mdb_free(pkm->pkm_old_mappings,
125*7c478bd9Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_old_max);
126*7c478bd9Sstevel@tonic-gate }
127*7c478bd9Sstevel@tonic-gate if (pkm->pkm_mappings &&
128*7c478bd9Sstevel@tonic-gate pkm->pkm_mappings != pkm->pkm_old_mappings) {
129*7c478bd9Sstevel@tonic-gate mdb_free(pkm->pkm_mappings,
130*7c478bd9Sstevel@tonic-gate sizeof (prmap_t) * pkm->pkm_max);
131*7c478bd9Sstevel@tonic-gate }
132*7c478bd9Sstevel@tonic-gate mdb_free(pkm, sizeof (prockludge_mappings_t));
133*7c478bd9Sstevel@tonic-gate }
134*7c478bd9Sstevel@tonic-gate }
135*7c478bd9Sstevel@tonic-gate
136*7c478bd9Sstevel@tonic-gate static int add_count = 0;
137*7c478bd9Sstevel@tonic-gate
138*7c478bd9Sstevel@tonic-gate void
prockludge_add_walkers(void)139*7c478bd9Sstevel@tonic-gate prockludge_add_walkers(void)
140*7c478bd9Sstevel@tonic-gate {
141*7c478bd9Sstevel@tonic-gate mdb_walker_t w;
142*7c478bd9Sstevel@tonic-gate
143*7c478bd9Sstevel@tonic-gate if (add_count++ == 0) {
144*7c478bd9Sstevel@tonic-gate w.walk_name = KLUDGE_MAPWALK_NAME;
145*7c478bd9Sstevel@tonic-gate w.walk_descr = "kludge: walk the process' prmap_ts";
146*7c478bd9Sstevel@tonic-gate w.walk_init = prockludge_mappings_walk_init;
147*7c478bd9Sstevel@tonic-gate w.walk_step = prockludge_mappings_walk_step;
148*7c478bd9Sstevel@tonic-gate w.walk_fini = prockludge_mappings_walk_fini;
149*7c478bd9Sstevel@tonic-gate w.walk_init_arg = NULL;
150*7c478bd9Sstevel@tonic-gate
151*7c478bd9Sstevel@tonic-gate if (mdb_add_walker(&w) == -1) {
152*7c478bd9Sstevel@tonic-gate mdb_warn("unable to add walker "KLUDGE_MAPWALK_NAME);
153*7c478bd9Sstevel@tonic-gate }
154*7c478bd9Sstevel@tonic-gate }
155*7c478bd9Sstevel@tonic-gate }
156*7c478bd9Sstevel@tonic-gate
157*7c478bd9Sstevel@tonic-gate void
prockludge_remove_walkers(void)158*7c478bd9Sstevel@tonic-gate prockludge_remove_walkers(void)
159*7c478bd9Sstevel@tonic-gate {
160*7c478bd9Sstevel@tonic-gate if (--add_count == 0) {
161*7c478bd9Sstevel@tonic-gate mdb_remove_walker(KLUDGE_MAPWALK_NAME);
162*7c478bd9Sstevel@tonic-gate }
163*7c478bd9Sstevel@tonic-gate }
164