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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <kmdb/kctl/kctl.h>
27
28 #include <sys/modctl.h>
29 #include <sys/bootconf.h>
30 #include <sys/kobj.h>
31 #include <sys/kobj_impl.h>
32 #include <sys/kmdb.h>
33
34 static uintptr_t
kctl_lookup_by_name(char * modname,char * symname)35 kctl_lookup_by_name(char *modname, char *symname)
36 {
37 struct modctl *mctl;
38 Sym *ksym;
39 uintptr_t addr;
40
41 if ((mctl = mod_hold_by_name(modname)) == NULL)
42 return (0);
43 if ((ksym = kobj_lookup_all(mctl->mod_mp, symname, 1)) == NULL) {
44 mod_release_mod(mctl);
45 return (0);
46 }
47
48 addr = ksym->st_value;
49
50 mod_release_mod(mctl);
51
52 return (addr);
53 }
54
55 static uintptr_t
kctl_boot_lookup_by_name(char * modname,char * symname)56 kctl_boot_lookup_by_name(char *modname, char *symname)
57 {
58 struct modctl *mctl;
59 Sym *ksym;
60
61 if ((mctl = kobj_boot_mod_lookup(modname)) == NULL)
62 return (0);
63
64 if ((ksym = kobj_lookup_all(mctl->mod_mp, symname, 1)) == NULL)
65 return (0);
66
67 return (ksym->st_value);
68 }
69
70 void
kctl_auxv_init(kmdb_auxv_t * kav,const char * cfg,const char ** argv,void * romp)71 kctl_auxv_init(kmdb_auxv_t *kav, const char *cfg, const char **argv, void *romp)
72 {
73 bzero(kav, sizeof (kmdb_auxv_t));
74 kav->kav_dseg = kctl.kctl_dseg;
75 kav->kav_dseg_size = kctl.kctl_dseg_size;
76 kav->kav_pagesize = PAGESIZE;
77 kav->kav_ncpu = NCPU;
78 kav->kav_kdi = &kobj_kdi;
79 kav->kav_wrintr_fire = kctl_wrintr_fire;
80
81 kav->kav_config = cfg;
82 kav->kav_argv = argv;
83 kav->kav_modpath = kobj_module_path;
84
85 kctl_dprintf("kctl_auxv_init: modpath '%s'", kav->kav_modpath);
86
87 if (kctl.kctl_boot_loaded) {
88 kav->kav_lookup_by_name = kctl_boot_lookup_by_name;
89 kav->kav_flags |= KMDB_AUXV_FL_NOUNLOAD;
90 } else
91 kav->kav_lookup_by_name = kctl_lookup_by_name;
92
93 if (kctl.kctl_flags & KMDB_F_TRAP_NOSWITCH)
94 kav->kav_flags |= KMDB_AUXV_FL_NOTRPSWTCH;
95
96 kctl_auxv_init_isadep(kav, romp); /* can modify anything in kav */
97 }
98
99 void
kctl_auxv_fini(kmdb_auxv_t * kav)100 kctl_auxv_fini(kmdb_auxv_t *kav)
101 {
102 kctl_auxv_fini_isadep(kav);
103 }
104