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, bool 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, bool hasaddr, db_expr_t cnt, char *mod)
95 thr = kdb_thr_first();
96 while (!db_pager_quit && thr != NULL) {
97 db_printf(" %6ld (%p) (stack %p) ", (long)thr->td_tid, thr,
98 (void *)thr->td_kstack);
99 prev_jb = kdb_jmpbuf(jb);
100 if (setjmp(jb) == 0) {
101 if (db_trace_thread(thr, 1) != 0)
105 thr = kdb_thr_next(thr);
110 * Lookup a thread based on a db expression address. We assume that the
111 * address was parsed in hexadecimal. We reparse the address in decimal
112 * first and try to treat it as a thread ID to find an associated thread.
113 * If that fails and check_pid is true, we treat the decimal value as a
114 * PID. If that matches a process, we return the first thread in that
115 * process. Otherwise, we treat the addr as a pointer to a thread.
118 db_lookup_thread(db_expr_t addr, bool check_pid)
125 * If the parsed address was not a valid decimal expression,
126 * assume it is a thread pointer.
128 decaddr = db_hex2dec(addr);
130 return ((struct thread *)addr);
132 td = kdb_thr_lookup(decaddr);
136 FOREACH_PROC_IN_SYSTEM(p) {
137 if (p->p_pid == decaddr)
138 return (FIRST_THREAD_IN_PROC(p));
140 LIST_FOREACH(p, &zombproc, p_list) {
141 if (p->p_pid == decaddr)
142 return (FIRST_THREAD_IN_PROC(p));
145 return ((struct thread *)addr);
149 * Lookup a process based on a db expression address. We assume that the
150 * address was parsed in hexadecimal. We reparse the address in decimal
151 * first and try to treat it as a PID to find an associated process.
152 * If that fails we treat the addr as a pointer to a process.
155 db_lookup_proc(db_expr_t addr)
160 decaddr = db_hex2dec(addr);
162 FOREACH_PROC_IN_SYSTEM(p) {
163 if (p->p_pid == decaddr)
166 LIST_FOREACH(p, &zombproc, p_list) {
167 if (p->p_pid == decaddr)
171 return ((struct proc *)addr);