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kthr.c (166214) kthr.c (167142)
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 *

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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 *

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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 166214 2007-01-25 06:39:25Z rodrigc $");
28__FBSDID("$FreeBSD: head/gnu/usr.bin/gdb/kgdb/kthr.c 167142 2007-03-01 13:55:15Z kib $");
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>

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47static int dumptid;
48
49static uintptr_t stoppcbs;
50static __cpumask_t stopped_cpus;
51
52static struct kthr *first;
53struct kthr *curkthr;
54
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>

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47static int dumptid;
48
49static uintptr_t stoppcbs;
50static __cpumask_t stopped_cpus;
51
52static struct kthr *first;
53struct kthr *curkthr;
54
55static uintptr_t
56lookup(const char *sym)
55uintptr_t
56kgdb_lookup(const char *sym)
57{
58 struct nlist nl[2];
59
60 nl[0].n_name = (char *)(uintptr_t)sym;
61 nl[1].n_name = NULL;
62 if (kvm_nlist(kvm, nl) != 0) {
63 warnx("kvm_nlist(%s): %s", sym, kvm_geterr(kvm));
64 return (0);

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75struct kthr *
76kgdb_thr_init(void)
77{
78 struct proc p;
79 struct thread td;
80 struct kthr *kt;
81 uintptr_t addr, paddr;
82
57{
58 struct nlist nl[2];
59
60 nl[0].n_name = (char *)(uintptr_t)sym;
61 nl[1].n_name = NULL;
62 if (kvm_nlist(kvm, nl) != 0) {
63 warnx("kvm_nlist(%s): %s", sym, kvm_geterr(kvm));
64 return (0);

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75struct kthr *
76kgdb_thr_init(void)
77{
78 struct proc p;
79 struct thread td;
80 struct kthr *kt;
81 uintptr_t addr, paddr;
82
83 addr = lookup("_allproc");
83 addr = kgdb_lookup("_allproc");
84 if (addr == 0)
85 return (NULL);
86 kvm_read(kvm, addr, &paddr, sizeof(paddr));
87
84 if (addr == 0)
85 return (NULL);
86 kvm_read(kvm, addr, &paddr, sizeof(paddr));
87
88 dumppcb = lookup("_dumppcb");
88 dumppcb = kgdb_lookup("_dumppcb");
89 if (dumppcb == 0)
90 return (NULL);
91
89 if (dumppcb == 0)
90 return (NULL);
91
92 addr = lookup("_dumptid");
92 addr = kgdb_lookup("_dumptid");
93 if (addr != 0)
94 kvm_read(kvm, addr, &dumptid, sizeof(dumptid));
95 else
96 dumptid = -1;
97
93 if (addr != 0)
94 kvm_read(kvm, addr, &dumptid, sizeof(dumptid));
95 else
96 dumptid = -1;
97
98 addr = lookup("_stopped_cpus");
98 addr = kgdb_lookup("_stopped_cpus");
99 if (addr != 0)
100 kvm_read(kvm, addr, &stopped_cpus, sizeof(stopped_cpus));
101 else
102 stopped_cpus = 0;
103
99 if (addr != 0)
100 kvm_read(kvm, addr, &stopped_cpus, sizeof(stopped_cpus));
101 else
102 stopped_cpus = 0;
103
104 stoppcbs = lookup("_stoppcbs");
104 stoppcbs = kgdb_lookup("_stoppcbs");
105
106 while (paddr != 0) {
107 if (kvm_read(kvm, paddr, &p, sizeof(p)) != sizeof(p)) {
108 warnx("kvm_read: %s", kvm_geterr(kvm));
109 break;
110 }
111 addr = (uintptr_t)TAILQ_FIRST(&p.p_threads);
112 while (addr != 0) {

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105
106 while (paddr != 0) {
107 if (kvm_read(kvm, paddr, &p, sizeof(p)) != sizeof(p)) {
108 warnx("kvm_read: %s", kvm_geterr(kvm));
109 break;
110 }
111 addr = (uintptr_t)TAILQ_FIRST(&p.p_threads);
112 while (addr != 0) {

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