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 142151 2005-02-20 22:55:07Z kan $");
| 28__FBSDID("$FreeBSD: head/gnu/usr.bin/gdb/kgdb/kthr.c 149954 2005-09-10 18:25:53Z marcel $");
|
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>
| 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#include <frame-unwind.h>
|
41
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;
109 first = kt;
110 addr = (uintptr_t)TAILQ_NEXT(&td, td_plist);
111 }
112 paddr = (uintptr_t)LIST_NEXT(&p, p_list);
113 }
114 curkthr = kgdb_thr_lookup_tid(dumptid);
115 if (curkthr == NULL)
116 curkthr = first;
117 return (first);
118}
119
120struct kthr *
121kgdb_thr_lookup_tid(int tid)
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 *
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}
| 42
43#include "kgdb.h"
44
45static uintptr_t dumppcb;
46static int dumptid;
47
48static struct kthr *first;
49struct kthr *curkthr;
50
51static uintptr_t
52lookup(const char *sym)
53{
54 struct nlist nl[2];
55
56 nl[0].n_name = (char *)(uintptr_t)sym;
57 nl[1].n_name = NULL;
58 if (kvm_nlist(kvm, nl) != 0) {
59 warnx("kvm_nlist(%s): %s", sym, kvm_geterr(kvm));
60 return (0);
61 }
62 return (nl[0].n_value);
63}
64
65struct kthr *
66kgdb_thr_first(void)
67{
68 return (first);
69}
70
71struct kthr *
72kgdb_thr_init(void)
73{
74 struct proc p;
75 struct thread td;
76 struct kthr *kt;
77 uintptr_t addr, paddr;
78
79 addr = lookup("_allproc");
80 if (addr == 0)
81 return (NULL);
82 kvm_read(kvm, addr, &paddr, sizeof(paddr));
83
84 dumppcb = lookup("_dumppcb");
85 if (dumppcb == 0)
86 return (NULL);
87
88 addr = lookup("_dumptid");
89 if (addr != 0)
90 kvm_read(kvm, addr, &dumptid, sizeof(dumptid));
91 else
92 dumptid = -1;
93
94 while (paddr != 0) {
95 if (kvm_read(kvm, paddr, &p, sizeof(p)) != sizeof(p))
96 warnx("kvm_read: %s", kvm_geterr(kvm));
97 addr = (uintptr_t)TAILQ_FIRST(&p.p_threads);
98 while (addr != 0) {
99 if (kvm_read(kvm, addr, &td, sizeof(td)) != sizeof(td))
100 warnx("kvm_read: %s", kvm_geterr(kvm));
101 kt = malloc(sizeof(*kt));
102 kt->next = first;
103 kt->kaddr = addr;
104 kt->pcb = (td.td_tid == dumptid) ? dumppcb :
105 (uintptr_t)td.td_pcb;
106 kt->kstack = td.td_kstack;
107 kt->tid = td.td_tid;
108 kt->pid = p.p_pid;
109 kt->paddr = paddr;
110 first = kt;
111 addr = (uintptr_t)TAILQ_NEXT(&td, td_plist);
112 }
113 paddr = (uintptr_t)LIST_NEXT(&p, p_list);
114 }
115 curkthr = kgdb_thr_lookup_tid(dumptid);
116 if (curkthr == NULL)
117 curkthr = first;
118 return (first);
119}
120
121struct kthr *
122kgdb_thr_lookup_tid(int tid)
123{
124 struct kthr *kt;
125
126 kt = first;
127 while (kt != NULL && kt->tid != tid)
128 kt = kt->next;
129 return (kt);
130}
131
132struct kthr *
133kgdb_thr_lookup_taddr(uintptr_t taddr)
134{
135 struct kthr *kt;
136
137 kt = first;
138 while (kt != NULL && kt->kaddr != taddr)
139 kt = kt->next;
140 return (kt);
141}
142
143struct kthr *
144kgdb_thr_lookup_pid(int pid)
145{
146 struct kthr *kt;
147
148 kt = first;
149 while (kt != NULL && kt->pid != pid)
150 kt = kt->next;
151 return (kt);
152}
153
154struct kthr *
155kgdb_thr_lookup_paddr(uintptr_t paddr)
156{
157 struct kthr *kt;
158
159 kt = first;
160 while (kt != NULL && kt->paddr != paddr)
161 kt = kt->next;
162 return (kt);
163}
164
165struct kthr *
166kgdb_thr_next(struct kthr *kt)
167{
168 return (kt->next);
169}
170
171struct kthr *
172kgdb_thr_select(struct kthr *kt)
173{
174 struct kthr *pcur;
175
176 pcur = curkthr;
177 curkthr = kt;
178 return (pcur);
179}
180
181char *
182kgdb_thr_extra_thread_info(int tid)
183{
184 struct kthr *kt;
185 struct proc *p;
186 static char comm[MAXCOMLEN + 1];
187
188 kt = kgdb_thr_lookup_tid(tid);
189 if (kt == NULL)
190 return (NULL);
191 p = (struct proc *)kt->paddr;
192 if (kvm_read(kvm, (uintptr_t)&p->p_comm[0], &comm, sizeof(comm)) !=
193 sizeof(comm))
194 return (NULL);
195
196 return (comm);
197}
|