2 * Copyright (c) 2004 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
35 #include <machine/pcb.h>
38 #include <ddb/db_command.h>
39 #include <ddb/db_sym.h>
47 if (kdb_thread->td_proc != NULL)
48 pid = kdb_thread->td_proc->p_pid;
49 db_printf("[ thread pid %d tid %ld ]\n", pid, (long)kdb_thread->td_tid);
53 db_set_thread(db_expr_t tid, boolean_t hastid, db_expr_t cnt, char *mod)
60 * We parse our own arguments. We don't like the default radix.
64 hastid = db_expression(&tid);
69 thr = kdb_thr_lookup(tid);
71 err = kdb_thr_select(thr);
73 db_printf("unable to switch to thread %ld\n",
79 db_printf("%d: invalid thread\n", (int)tid);
85 db_print_loc_and_inst(PC_REGS());
89 db_show_threads(db_expr_t addr, boolean_t hasaddr, db_expr_t cnt, char *mod)
95 thr = kdb_thr_first();
96 while (!db_pager_quit && thr != NULL) {
97 db_printf(" %6ld (%p) ", (long)thr->td_tid, thr);
98 prev_jb = kdb_jmpbuf(jb);
99 if (setjmp(jb) == 0) {
100 if (db_trace_thread(thr, 1) != 0)
104 thr = kdb_thr_next(thr);
109 * Lookup a thread based on a db expression address. We assume that the
110 * address was parsed in hexadecimal. We reparse the address in decimal
111 * first and try to treat it as a thread ID to find an associated thread.
112 * If that fails and check_pid is true, we terat the decimal value as a
113 * PID. If that matches a process, we return the first thread in that
114 * process. Otherwise, we treat the addr as a pointer to a thread.
117 db_lookup_thread(db_expr_t addr, boolean_t check_pid)
124 * If the parsed address was not a valid decimal expression,
125 * assume it is a thread pointer.
127 decaddr = db_hex2dec(addr);
129 return ((struct thread *)addr);
131 td = kdb_thr_lookup(decaddr);
135 FOREACH_PROC_IN_SYSTEM(p) {
136 if (p->p_pid == decaddr)
137 return (FIRST_THREAD_IN_PROC(p));
139 LIST_FOREACH(p, &zombproc, p_list) {
140 if (p->p_pid == decaddr)
141 return (FIRST_THREAD_IN_PROC(p));
144 return ((struct thread *)addr);
148 * Lookup a process based on a db expression address. We assume that the
149 * address was parsed in hexadecimal. We reparse the address in decimal
150 * first and try to treat it as a PID to find an associated process.
151 * If that fails we treat the addr as a pointer to a process.
154 db_lookup_proc(db_expr_t addr)
159 decaddr = db_hex2dec(addr);
161 FOREACH_PROC_IN_SYSTEM(p) {
162 if (p->p_pid == decaddr)
165 LIST_FOREACH(p, &zombproc, p_list) {
166 if (p->p_pid == decaddr)
170 return ((struct proc *)addr);