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 246893 2013-02-17 02:15:19Z marcel $");
| 28__FBSDID("$FreeBSD: head/gnu/usr.bin/gdb/kgdb/kthr.c 275644 2014-12-09 14:21:43Z dchagin $");
|
29
30#include <sys/param.h>
31#include <sys/cpuset.h>
32#include <sys/proc.h>
33#include <sys/types.h>
34#include <sys/signal.h>
35#include <err.h>
36#include <inttypes.h>
37#include <kvm.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <string.h>
41#include <unistd.h>
42
43#include <defs.h>
44#include <frame-unwind.h>
45
46#include "kgdb.h"
47
48static CORE_ADDR dumppcb;
49static int dumptid;
50
51static cpuset_t stopped_cpus;
52
53static struct kthr *first;
54struct kthr *curkthr;
55
56CORE_ADDR
57kgdb_lookup(const char *sym)
58{
59 CORE_ADDR addr;
60 char *name;
61
62 asprintf(&name, "&%s", sym);
63 addr = kgdb_parse(name);
64 free(name);
65 return (addr);
66}
67
68struct kthr *
69kgdb_thr_first(void)
70{
71 return (first);
72}
73
74static void
75kgdb_thr_add_procs(uintptr_t paddr)
76{
77 struct proc p;
78 struct thread td;
79 struct kthr *kt;
80 CORE_ADDR addr;
81
82 while (paddr != 0) {
83 if (kvm_read(kvm, paddr, &p, sizeof(p)) != sizeof(p)) {
84 warnx("kvm_read: %s", kvm_geterr(kvm));
85 break;
86 }
87 addr = (uintptr_t)TAILQ_FIRST(&p.p_threads);
88 while (addr != 0) {
89 if (kvm_read(kvm, addr, &td, sizeof(td)) !=
90 sizeof(td)) {
91 warnx("kvm_read: %s", kvm_geterr(kvm));
92 break;
93 }
94 kt = malloc(sizeof(*kt));
95 kt->next = first;
96 kt->kaddr = addr;
97 if (td.td_tid == dumptid)
98 kt->pcb = dumppcb;
| 29
30#include <sys/param.h>
31#include <sys/cpuset.h>
32#include <sys/proc.h>
33#include <sys/types.h>
34#include <sys/signal.h>
35#include <err.h>
36#include <inttypes.h>
37#include <kvm.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <string.h>
41#include <unistd.h>
42
43#include <defs.h>
44#include <frame-unwind.h>
45
46#include "kgdb.h"
47
48static CORE_ADDR dumppcb;
49static int dumptid;
50
51static cpuset_t stopped_cpus;
52
53static struct kthr *first;
54struct kthr *curkthr;
55
56CORE_ADDR
57kgdb_lookup(const char *sym)
58{
59 CORE_ADDR addr;
60 char *name;
61
62 asprintf(&name, "&%s", sym);
63 addr = kgdb_parse(name);
64 free(name);
65 return (addr);
66}
67
68struct kthr *
69kgdb_thr_first(void)
70{
71 return (first);
72}
73
74static void
75kgdb_thr_add_procs(uintptr_t paddr)
76{
77 struct proc p;
78 struct thread td;
79 struct kthr *kt;
80 CORE_ADDR addr;
81
82 while (paddr != 0) {
83 if (kvm_read(kvm, paddr, &p, sizeof(p)) != sizeof(p)) {
84 warnx("kvm_read: %s", kvm_geterr(kvm));
85 break;
86 }
87 addr = (uintptr_t)TAILQ_FIRST(&p.p_threads);
88 while (addr != 0) {
89 if (kvm_read(kvm, addr, &td, sizeof(td)) !=
90 sizeof(td)) {
91 warnx("kvm_read: %s", kvm_geterr(kvm));
92 break;
93 }
94 kt = malloc(sizeof(*kt));
95 kt->next = first;
96 kt->kaddr = addr;
97 if (td.td_tid == dumptid)
98 kt->pcb = dumppcb;
|
99 else if (td.td_state == TDS_RUNNING &&
| 99 else if (td.td_oncpu != NOCPU &&
|
100 CPU_ISSET(td.td_oncpu, &stopped_cpus))
101 kt->pcb = kgdb_trgt_core_pcb(td.td_oncpu);
102 else
103 kt->pcb = (uintptr_t)td.td_pcb;
104 kt->kstack = td.td_kstack;
105 kt->tid = td.td_tid;
106 kt->pid = p.p_pid;
107 kt->paddr = paddr;
108 kt->cpu = td.td_oncpu;
109 first = kt;
110 addr = (uintptr_t)TAILQ_NEXT(&td, td_plist);
111 }
112 paddr = (uintptr_t)LIST_NEXT(&p, p_list);
113 }
114}
115
116struct kthr *
117kgdb_thr_init(void)
118{
119 long cpusetsize;
120 struct kthr *kt;
121 CORE_ADDR addr;
122 uintptr_t paddr;
123
124 while (first != NULL) {
125 kt = first;
126 first = kt->next;
127 free(kt);
128 }
129
130 addr = kgdb_lookup("allproc");
131 if (addr == 0)
132 return (NULL);
133 kvm_read(kvm, addr, &paddr, sizeof(paddr));
134
135 dumppcb = kgdb_lookup("dumppcb");
136 if (dumppcb == 0)
137 return (NULL);
138
139 addr = kgdb_lookup("dumptid");
140 if (addr != 0)
141 kvm_read(kvm, addr, &dumptid, sizeof(dumptid));
142 else
143 dumptid = -1;
144
145 addr = kgdb_lookup("stopped_cpus");
146 CPU_ZERO(&stopped_cpus);
147 cpusetsize = sysconf(_SC_CPUSET_SIZE);
148 if (cpusetsize != -1 && (u_long)cpusetsize <= sizeof(cpuset_t) &&
149 addr != 0)
150 kvm_read(kvm, addr, &stopped_cpus, cpusetsize);
151
152 kgdb_thr_add_procs(paddr);
153 addr = kgdb_lookup("zombproc");
154 if (addr != 0) {
155 kvm_read(kvm, addr, &paddr, sizeof(paddr));
156 kgdb_thr_add_procs(paddr);
157 }
158 curkthr = kgdb_thr_lookup_tid(dumptid);
159 if (curkthr == NULL)
160 curkthr = first;
161 return (first);
162}
163
164struct kthr *
165kgdb_thr_lookup_tid(int tid)
166{
167 struct kthr *kt;
168
169 kt = first;
170 while (kt != NULL && kt->tid != tid)
171 kt = kt->next;
172 return (kt);
173}
174
175struct kthr *
176kgdb_thr_lookup_taddr(uintptr_t taddr)
177{
178 struct kthr *kt;
179
180 kt = first;
181 while (kt != NULL && kt->kaddr != taddr)
182 kt = kt->next;
183 return (kt);
184}
185
186struct kthr *
187kgdb_thr_lookup_pid(int pid)
188{
189 struct kthr *kt;
190
191 kt = first;
192 while (kt != NULL && kt->pid != pid)
193 kt = kt->next;
194 return (kt);
195}
196
197struct kthr *
198kgdb_thr_lookup_paddr(uintptr_t paddr)
199{
200 struct kthr *kt;
201
202 kt = first;
203 while (kt != NULL && kt->paddr != paddr)
204 kt = kt->next;
205 return (kt);
206}
207
208struct kthr *
209kgdb_thr_next(struct kthr *kt)
210{
211 return (kt->next);
212}
213
214struct kthr *
215kgdb_thr_select(struct kthr *kt)
216{
217 struct kthr *pcur;
218
219 pcur = curkthr;
220 curkthr = kt;
221 return (pcur);
222}
223
224char *
225kgdb_thr_extra_thread_info(int tid)
226{
227 char comm[MAXCOMLEN + 1];
228 char td_name[MAXCOMLEN + 1];
229 struct kthr *kt;
230 struct proc *p;
231 struct thread *t;
232 static char buf[64];
233
234 kt = kgdb_thr_lookup_tid(tid);
235 if (kt == NULL)
236 return (NULL);
237 snprintf(buf, sizeof(buf), "PID=%d", kt->pid);
238 p = (struct proc *)kt->paddr;
239 if (kvm_read(kvm, (uintptr_t)&p->p_comm[0], &comm, sizeof(comm)) !=
240 sizeof(comm))
241 return (buf);
242 strlcat(buf, ": ", sizeof(buf));
243 strlcat(buf, comm, sizeof(buf));
244 t = (struct thread *)kt->kaddr;
245 if (kvm_read(kvm, (uintptr_t)&t->td_name[0], &td_name,
246 sizeof(td_name)) == sizeof(td_name) &&
247 strcmp(comm, td_name) != 0) {
248 strlcat(buf, "/", sizeof(buf));
249 strlcat(buf, td_name, sizeof(buf));
250 }
251 return (buf);
252}
| 100 CPU_ISSET(td.td_oncpu, &stopped_cpus))
101 kt->pcb = kgdb_trgt_core_pcb(td.td_oncpu);
102 else
103 kt->pcb = (uintptr_t)td.td_pcb;
104 kt->kstack = td.td_kstack;
105 kt->tid = td.td_tid;
106 kt->pid = p.p_pid;
107 kt->paddr = paddr;
108 kt->cpu = td.td_oncpu;
109 first = kt;
110 addr = (uintptr_t)TAILQ_NEXT(&td, td_plist);
111 }
112 paddr = (uintptr_t)LIST_NEXT(&p, p_list);
113 }
114}
115
116struct kthr *
117kgdb_thr_init(void)
118{
119 long cpusetsize;
120 struct kthr *kt;
121 CORE_ADDR addr;
122 uintptr_t paddr;
123
124 while (first != NULL) {
125 kt = first;
126 first = kt->next;
127 free(kt);
128 }
129
130 addr = kgdb_lookup("allproc");
131 if (addr == 0)
132 return (NULL);
133 kvm_read(kvm, addr, &paddr, sizeof(paddr));
134
135 dumppcb = kgdb_lookup("dumppcb");
136 if (dumppcb == 0)
137 return (NULL);
138
139 addr = kgdb_lookup("dumptid");
140 if (addr != 0)
141 kvm_read(kvm, addr, &dumptid, sizeof(dumptid));
142 else
143 dumptid = -1;
144
145 addr = kgdb_lookup("stopped_cpus");
146 CPU_ZERO(&stopped_cpus);
147 cpusetsize = sysconf(_SC_CPUSET_SIZE);
148 if (cpusetsize != -1 && (u_long)cpusetsize <= sizeof(cpuset_t) &&
149 addr != 0)
150 kvm_read(kvm, addr, &stopped_cpus, cpusetsize);
151
152 kgdb_thr_add_procs(paddr);
153 addr = kgdb_lookup("zombproc");
154 if (addr != 0) {
155 kvm_read(kvm, addr, &paddr, sizeof(paddr));
156 kgdb_thr_add_procs(paddr);
157 }
158 curkthr = kgdb_thr_lookup_tid(dumptid);
159 if (curkthr == NULL)
160 curkthr = first;
161 return (first);
162}
163
164struct kthr *
165kgdb_thr_lookup_tid(int tid)
166{
167 struct kthr *kt;
168
169 kt = first;
170 while (kt != NULL && kt->tid != tid)
171 kt = kt->next;
172 return (kt);
173}
174
175struct kthr *
176kgdb_thr_lookup_taddr(uintptr_t taddr)
177{
178 struct kthr *kt;
179
180 kt = first;
181 while (kt != NULL && kt->kaddr != taddr)
182 kt = kt->next;
183 return (kt);
184}
185
186struct kthr *
187kgdb_thr_lookup_pid(int pid)
188{
189 struct kthr *kt;
190
191 kt = first;
192 while (kt != NULL && kt->pid != pid)
193 kt = kt->next;
194 return (kt);
195}
196
197struct kthr *
198kgdb_thr_lookup_paddr(uintptr_t paddr)
199{
200 struct kthr *kt;
201
202 kt = first;
203 while (kt != NULL && kt->paddr != paddr)
204 kt = kt->next;
205 return (kt);
206}
207
208struct kthr *
209kgdb_thr_next(struct kthr *kt)
210{
211 return (kt->next);
212}
213
214struct kthr *
215kgdb_thr_select(struct kthr *kt)
216{
217 struct kthr *pcur;
218
219 pcur = curkthr;
220 curkthr = kt;
221 return (pcur);
222}
223
224char *
225kgdb_thr_extra_thread_info(int tid)
226{
227 char comm[MAXCOMLEN + 1];
228 char td_name[MAXCOMLEN + 1];
229 struct kthr *kt;
230 struct proc *p;
231 struct thread *t;
232 static char buf[64];
233
234 kt = kgdb_thr_lookup_tid(tid);
235 if (kt == NULL)
236 return (NULL);
237 snprintf(buf, sizeof(buf), "PID=%d", kt->pid);
238 p = (struct proc *)kt->paddr;
239 if (kvm_read(kvm, (uintptr_t)&p->p_comm[0], &comm, sizeof(comm)) !=
240 sizeof(comm))
241 return (buf);
242 strlcat(buf, ": ", sizeof(buf));
243 strlcat(buf, comm, sizeof(buf));
244 t = (struct thread *)kt->kaddr;
245 if (kvm_read(kvm, (uintptr_t)&t->td_name[0], &td_name,
246 sizeof(td_name)) == sizeof(td_name) &&
247 strcmp(comm, td_name) != 0) {
248 strlcat(buf, "/", sizeof(buf));
249 strlcat(buf, td_name, sizeof(buf));
250 }
251 return (buf);
252}
|