FreeBSD/Linux Kernel Cross Reference
sys/ddb/ddb.h
1 /*-
2 * Copyright (c) 1993, Garrett A. Wollman.
3 * Copyright (c) 1993, University of Vermont and State Agricultural College.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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 * 3. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $FreeBSD: releng/5.1/sys/ddb/ddb.h 111017 2003-02-16 19:22:21Z phk $
31 */
32
33 /*
34 * Necessary declarations for the `ddb' kernel debugger.
35 */
36
37 #ifndef _DDB_DDB_H_
38 #define _DDB_DDB_H_
39
40 #include <machine/db_machdep.h> /* type definitions */
41
42 typedef void db_cmdfcn_t(db_expr_t addr, boolean_t have_addr, db_expr_t count,
43 char *modif);
44
45 #define DB_COMMAND(cmd_name, func_name) \
46 DB_SET(cmd_name, func_name, db_cmd_set, 0, NULL)
47 #define DB_SHOW_COMMAND(cmd_name, func_name) \
48 DB_SET(cmd_name, func_name, db_show_cmd_set, 0, NULL)
49
50 #define DB_SET(cmd_name, func_name, set, flag, more) \
51 static db_cmdfcn_t func_name; \
52 \
53 static const struct command __CONCAT(func_name,_cmd) = { \
54 __STRING(cmd_name), \
55 func_name, \
56 flag, \
57 more \
58 }; \
59 TEXT_SET(set, __CONCAT(func_name,_cmd)); \
60 \
61 static void \
62 func_name(addr, have_addr, count, modif) \
63 db_expr_t addr; \
64 boolean_t have_addr; \
65 db_expr_t count; \
66 char *modif;
67
68 extern char *esym;
69 extern db_expr_t db_maxoff;
70 extern int db_active;
71 extern int db_indent;
72 extern int db_inst_count;
73 extern int db_load_count;
74 extern int debugger_on_panic;
75 extern int db_store_count;
76 extern db_expr_t db_radix;
77 extern db_expr_t db_max_width;
78 extern db_expr_t db_tab_stop_width;
79
80 struct vm_map;
81
82 #ifdef ALT_BREAK_TO_DEBUGGER
83 int db_alt_break(int, int *);
84 #endif
85 void db_check_interrupt(void);
86 void db_clear_watchpoints(void);
87 db_addr_t db_disasm(db_addr_t loc, boolean_t altfmt);
88 /* instruction disassembler */
89 void db_error(const char *s);
90 int db_expression(db_expr_t *valuep);
91 int db_get_variable(db_expr_t *valuep);
92 void db_iprintf(const char *,...) __printflike(1, 2);
93 struct vm_map *db_map_addr(vm_offset_t);
94 boolean_t db_map_current(struct vm_map *);
95 boolean_t db_map_equal(struct vm_map *, struct vm_map *);
96 void db_print_loc_and_inst(db_addr_t loc);
97 void db_printf(const char *fmt, ...) __printflike(1, 2);
98 void db_read_bytes(vm_offset_t addr, size_t size, char *data);
99 /* machine-dependent */
100 int db_readline(char *lstart, int lsize);
101 void db_restart_at_pc(boolean_t watchpt);
102 void db_set_watchpoints(void);
103 void db_skip_to_eol(void);
104 boolean_t db_stop_at_pc(boolean_t *is_breakpoint);
105 #define db_strcpy strcpy
106 void db_trap(int type, int code);
107 int db_value_of_name(const char *name, db_expr_t *valuep);
108 void db_write_bytes(vm_offset_t addr, size_t size, char *data);
109 /* machine-dependent */
110 void db_stack_thread(db_expr_t addr, boolean_t have_addr,
111 db_expr_t count, char *modif);
112 void kdb_init(void);
113
114 db_cmdfcn_t db_breakpoint_cmd;
115 db_cmdfcn_t db_continue_cmd;
116 db_cmdfcn_t db_delete_cmd;
117 db_cmdfcn_t db_deletehwatch_cmd;
118 db_cmdfcn_t db_deletewatch_cmd;
119 db_cmdfcn_t db_examine_cmd;
120 db_cmdfcn_t db_hwatchpoint_cmd;
121 db_cmdfcn_t db_listbreak_cmd;
122 db_cmdfcn_t db_print_cmd;
123 db_cmdfcn_t db_ps;
124 db_cmdfcn_t db_search_cmd;
125 db_cmdfcn_t db_set_cmd;
126 db_cmdfcn_t db_show_regs;
127 db_cmdfcn_t db_single_step_cmd;
128 db_cmdfcn_t db_stack_trace_cmd;
129 db_cmdfcn_t db_trace_until_call_cmd;
130 db_cmdfcn_t db_trace_until_matching_cmd;
131 db_cmdfcn_t db_watchpoint_cmd;
132 db_cmdfcn_t db_write_cmd;
133 db_cmdfcn_t db_show_one_thread;
134
135 #if 0
136 db_cmdfcn_t db_help_cmd;
137 db_cmdfcn_t db_show_all_threads;
138 db_cmdfcn_t ipc_port_print;
139 db_cmdfcn_t vm_page_print;
140 #endif
141
142 /* Scare the user with backtrace of curthread to console. */
143 void db_print_backtrace(void);
144
145 /*
146 * Command table.
147 */
148 struct command {
149 char * name; /* command name */
150 db_cmdfcn_t *fcn; /* function to call */
151 int flag; /* extra info: */
152 #define CS_OWN 0x1 /* non-standard syntax */
153 #define CS_MORE 0x2 /* standard syntax, but may have other words
154 * at end */
155 #define CS_SET_DOT 0x100 /* set dot after command */
156 struct command *more; /* another level of command */
157 };
158
159 /* XXX: UGLY hack */
160 #ifdef CN_DEAD
161 /*
162 * Routines to support GDB on an sio port.
163 */
164 extern void *gdb_arg;
165 extern cn_getc_t *gdb_getc;
166 extern cn_putc_t *gdb_putc;
167 #endif
168
169 #endif /* !_DDB_DDB_H_ */
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