2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2004 Marcel Moolenaar
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
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, bool hastid, db_expr_t cnt, char *mod)
59 thr = db_lookup_thread(tid, false);
61 err = kdb_thr_select(thr);
63 db_printf("unable to switch to thread %ld\n",
69 db_printf("%d: invalid thread\n", (int)tid);
75 db_print_loc_and_inst(PC_REGS());
79 db_show_threads(db_expr_t addr, bool hasaddr, db_expr_t cnt, char *mod)
85 thr = kdb_thr_first();
86 while (!db_pager_quit && thr != NULL) {
87 db_printf(" %6ld (%p) (stack %p) ", (long)thr->td_tid, thr,
88 (void *)thr->td_kstack);
89 prev_jb = kdb_jmpbuf(jb);
90 if (setjmp(jb) == 0) {
91 if (thr->td_proc->p_flag & P_INMEM) {
92 if (db_trace_thread(thr, 1) != 0)
95 db_printf("*** swapped out\n");
98 thr = kdb_thr_next(thr);
103 * Lookup a thread based on a db expression address. We assume that the
104 * address was parsed in hexadecimal. We reparse the address in decimal
105 * first and try to treat it as a thread ID to find an associated thread.
106 * If that fails and check_pid is true, we treat the decimal value as a
107 * PID. If that matches a process, we return the first thread in that
108 * process. Otherwise, we treat the addr as a pointer to a thread.
111 db_lookup_thread(db_expr_t addr, bool check_pid)
117 * If the parsed address was not a valid decimal expression,
118 * assume it is a thread pointer.
120 decaddr = db_hex2dec(addr);
122 return ((struct thread *)addr);
124 td = kdb_thr_lookup(decaddr);
128 td = kdb_thr_from_pid(decaddr);
132 return ((struct thread *)addr);
136 * Lookup a process based on a db expression address. We assume that the
137 * address was parsed in hexadecimal. We reparse the address in decimal
138 * first and try to treat it as a PID to find an associated process.
139 * If that fails we treat the addr as a pointer to a process.
142 db_lookup_proc(db_expr_t addr)
147 decaddr = db_hex2dec(addr);
149 LIST_FOREACH(p, PIDHASH(decaddr), p_hash) {
150 if (p->p_pid == decaddr)
154 return ((struct proc *)addr);