1/*
2 * Copyright (c) 2004 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
| 1/*
2 * Copyright (c) 2004 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
|
28__FBSDID("$FreeBSD: head/gnu/usr.bin/gdb/kgdb/kthr.c 132624 2004-07-25 05:29:15Z marcel $");
| 28__FBSDID("$FreeBSD: head/gnu/usr.bin/gdb/kgdb/kthr.c 142151 2005-02-20 22:55:07Z kan $");
|
29
30#include <sys/param.h>
31#include <sys/proc.h>
32#include <sys/types.h>
33#include <sys/signal.h>
34#include <err.h>
35#include <inttypes.h>
36#include <kvm.h>
37#include <stdio.h>
38#include <stdlib.h>
39
| 29
30#include <sys/param.h>
31#include <sys/proc.h>
32#include <sys/types.h>
33#include <sys/signal.h>
34#include <err.h>
35#include <inttypes.h>
36#include <kvm.h>
37#include <stdio.h>
38#include <stdlib.h>
39
|
| 40#include <defs.h>
41
|
40#include "kgdb.h"
41
42static uintptr_t dumppcb;
43static int dumptid;
44
45static struct kthr *first;
46struct kthr *curkthr;
47
48static uintptr_t
49lookup(const char *sym)
50{
51 struct nlist nl[2];
52
53 nl[0].n_name = (char *)(uintptr_t)sym;
54 nl[1].n_name = NULL;
55 if (kvm_nlist(kvm, nl) != 0) {
56 warnx("kvm_nlist(%s): %s", sym, kvm_geterr(kvm));
57 return (0);
58 }
59 return (nl[0].n_value);
60}
61
62struct kthr *
63kgdb_thr_first(void)
64{
65 return (first);
66}
67
68struct kthr *
69kgdb_thr_init(void)
70{
71 struct proc p;
72 struct thread td;
73 struct kthr *kt;
74 uintptr_t addr, paddr;
75
76 addr = lookup("_allproc");
77 if (addr == 0)
78 return (NULL);
79 kvm_read(kvm, addr, &paddr, sizeof(paddr));
80
81 dumppcb = lookup("_dumppcb");
82 if (dumppcb == 0)
83 return (NULL);
84
85 addr = lookup("_dumptid");
86 if (addr != 0)
87 kvm_read(kvm, addr, &dumptid, sizeof(dumptid));
88 else
89 dumptid = -1;
90
91 while (paddr != 0) {
92 if (kvm_read(kvm, paddr, &p, sizeof(p)) != sizeof(p))
93 warnx("kvm_read: %s", kvm_geterr(kvm));
94 addr = (uintptr_t)TAILQ_FIRST(&p.p_threads);
95 while (addr != 0) {
96 if (kvm_read(kvm, addr, &td, sizeof(td)) != sizeof(td))
97 warnx("kvm_read: %s", kvm_geterr(kvm));
98 kt = malloc(sizeof(*kt));
99 kt->next = first;
100 kt->kaddr = addr;
101 kt->pcb = (td.td_tid == dumptid) ? dumppcb :
102 (uintptr_t)td.td_pcb;
103 kt->kstack = td.td_kstack;
104 kt->tid = td.td_tid;
| 42#include "kgdb.h"
43
44static uintptr_t dumppcb;
45static int dumptid;
46
47static struct kthr *first;
48struct kthr *curkthr;
49
50static uintptr_t
51lookup(const char *sym)
52{
53 struct nlist nl[2];
54
55 nl[0].n_name = (char *)(uintptr_t)sym;
56 nl[1].n_name = NULL;
57 if (kvm_nlist(kvm, nl) != 0) {
58 warnx("kvm_nlist(%s): %s", sym, kvm_geterr(kvm));
59 return (0);
60 }
61 return (nl[0].n_value);
62}
63
64struct kthr *
65kgdb_thr_first(void)
66{
67 return (first);
68}
69
70struct kthr *
71kgdb_thr_init(void)
72{
73 struct proc p;
74 struct thread td;
75 struct kthr *kt;
76 uintptr_t addr, paddr;
77
78 addr = lookup("_allproc");
79 if (addr == 0)
80 return (NULL);
81 kvm_read(kvm, addr, &paddr, sizeof(paddr));
82
83 dumppcb = lookup("_dumppcb");
84 if (dumppcb == 0)
85 return (NULL);
86
87 addr = lookup("_dumptid");
88 if (addr != 0)
89 kvm_read(kvm, addr, &dumptid, sizeof(dumptid));
90 else
91 dumptid = -1;
92
93 while (paddr != 0) {
94 if (kvm_read(kvm, paddr, &p, sizeof(p)) != sizeof(p))
95 warnx("kvm_read: %s", kvm_geterr(kvm));
96 addr = (uintptr_t)TAILQ_FIRST(&p.p_threads);
97 while (addr != 0) {
98 if (kvm_read(kvm, addr, &td, sizeof(td)) != sizeof(td))
99 warnx("kvm_read: %s", kvm_geterr(kvm));
100 kt = malloc(sizeof(*kt));
101 kt->next = first;
102 kt->kaddr = addr;
103 kt->pcb = (td.td_tid == dumptid) ? dumppcb :
104 (uintptr_t)td.td_pcb;
105 kt->kstack = td.td_kstack;
106 kt->tid = td.td_tid;
|
| 107 kt->pid = p.p_pid;
108 kt->paddr = paddr;
|
105 first = kt;
106 addr = (uintptr_t)TAILQ_NEXT(&td, td_plist);
107 }
108 paddr = (uintptr_t)LIST_NEXT(&p, p_list);
109 }
| 109 first = kt;
110 addr = (uintptr_t)TAILQ_NEXT(&td, td_plist);
111 }
112 paddr = (uintptr_t)LIST_NEXT(&p, p_list);
113 }
|
110 curkthr = kgdb_thr_lookup(dumptid);
| 114 curkthr = kgdb_thr_lookup_tid(dumptid);
|
111 if (curkthr == NULL)
112 curkthr = first;
113 return (first);
114}
115
116struct kthr *
| 115 if (curkthr == NULL)
116 curkthr = first;
117 return (first);
118}
119
120struct kthr *
|
117kgdb_thr_lookup(int tid)
| 121kgdb_thr_lookup_tid(int tid)
|
118{
119 struct kthr *kt;
120
121 kt = first;
122 while (kt != NULL && kt->tid != tid)
123 kt = kt->next;
124 return (kt);
125}
126
127struct kthr *
| 122{
123 struct kthr *kt;
124
125 kt = first;
126 while (kt != NULL && kt->tid != tid)
127 kt = kt->next;
128 return (kt);
129}
130
131struct kthr *
|
| 132kgdb_thr_lookup_taddr(uintptr_t taddr)
133{
134 struct kthr *kt;
135
136 kt = first;
137 while (kt != NULL && kt->kaddr != taddr)
138 kt = kt->next;
139 return (kt);
140}
141
142struct kthr *
143kgdb_thr_lookup_pid(int pid)
144{
145 struct kthr *kt;
146
147 kt = first;
148 while (kt != NULL && kt->pid != pid)
149 kt = kt->next;
150 return (kt);
151}
152
153struct kthr *
154kgdb_thr_lookup_paddr(uintptr_t paddr)
155{
156 struct kthr *kt;
157
158 kt = first;
159 while (kt != NULL && kt->paddr != paddr)
160 kt = kt->next;
161 return (kt);
162}
163
164struct kthr *
|
128kgdb_thr_next(struct kthr *kt)
129{
130 return (kt->next);
131}
132
133struct kthr *
134kgdb_thr_select(struct kthr *kt)
135{
136 struct kthr *pcur;
137
138 pcur = curkthr;
139 curkthr = kt;
140 return (pcur);
141}
| 165kgdb_thr_next(struct kthr *kt)
166{
167 return (kt->next);
168}
169
170struct kthr *
171kgdb_thr_select(struct kthr *kt)
172{
173 struct kthr *pcur;
174
175 pcur = curkthr;
176 curkthr = kt;
177 return (pcur);
178}
|
| 179
180char *
181kgdb_thr_extra_thread_info(int tid)
182{
183 struct kthr *kt;
184 struct proc *p;
185 static char comm[MAXCOMLEN + 1];
186
187 kt = kgdb_thr_lookup_tid(tid);
188 if (kt == NULL)
189 return (NULL);
190 p = (struct proc *)kt->paddr;
191 if (kvm_read(kvm, (uintptr_t)&p->p_comm[0], &comm, sizeof(comm)) !=
192 sizeof(comm))
193 return (NULL);
194
195 return (comm);
196}
|
| |