FreeBSD/Linux Kernel Cross Reference
sys/sys/kdb.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 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.
25 *
26 * $FreeBSD: releng/6.0/sys/sys/kdb.h 145343 2005-04-20 20:52:46Z ps $
27 */
28
29 #ifndef _SYS_KDB_H_
30 #define _SYS_KDB_H_
31
32 #include <machine/setjmp.h>
33
34 typedef int dbbe_init_f(void);
35 typedef void dbbe_trace_f(void);
36 typedef int dbbe_trap_f(int, int);
37
38 struct kdb_dbbe {
39 const char *dbbe_name;
40 dbbe_init_f *dbbe_init;
41 dbbe_trace_f *dbbe_trace;
42 dbbe_trap_f *dbbe_trap;
43 int dbbe_active;
44 };
45
46 #define KDB_BACKEND(name, init, trace, trap) \
47 static struct kdb_dbbe name##_dbbe = { \
48 .dbbe_name = #name, \
49 .dbbe_init = init, \
50 .dbbe_trace = trace, \
51 .dbbe_trap = trap \
52 }; \
53 DATA_SET(kdb_dbbe_set, name##_dbbe)
54
55 struct pcb;
56 struct thread;
57 struct trapframe;
58
59 extern int kdb_active; /* Non-zero while in debugger. */
60 extern int debugger_on_panic; /* enter the debugger on panic. */
61 extern struct kdb_dbbe *kdb_dbbe; /* Default debugger backend or NULL. */
62 extern struct trapframe *kdb_frame; /* Frame to kdb_trap(). */
63 extern struct pcb *kdb_thrctx; /* Current context. */
64 extern struct thread *kdb_thread; /* Current thread. */
65
66 int kdb_alt_break(int, int *);
67 void kdb_backtrace(void);
68 int kdb_dbbe_select(const char *);
69 void kdb_enter(const char *);
70 void kdb_init(void);
71 void * kdb_jmpbuf(jmp_buf);
72 void kdb_reenter(void);
73 struct pcb *kdb_thr_ctx(struct thread *);
74 struct thread *kdb_thr_first(void);
75 struct thread *kdb_thr_from_pid(pid_t);
76 struct thread *kdb_thr_lookup(lwpid_t);
77 struct thread *kdb_thr_next(struct thread *);
78 int kdb_thr_select(struct thread *);
79 int kdb_trap(int, int, struct trapframe *);
80
81 #endif /* !_SYS_KDB_H_ */
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