ddb.h revision 118268
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: head/sys/ddb/ddb.h 118268 2003-07-31 17:27:52Z jhb $ 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#define DB_LINES_PER_PAGE 20 43 44typedef void db_cmdfcn_t(db_expr_t addr, boolean_t have_addr, db_expr_t count, 45 char *modif); 46 47typedef void db_page_calloutfcn_t(void *arg); 48 49#define DB_COMMAND(cmd_name, func_name) \ 50 DB_SET(cmd_name, func_name, db_cmd_set, 0, NULL) 51#define DB_SHOW_COMMAND(cmd_name, func_name) \ 52 DB_SET(cmd_name, func_name, db_show_cmd_set, 0, NULL) 53 54#define DB_SET(cmd_name, func_name, set, flag, more) \ 55static db_cmdfcn_t func_name; \ 56 \ 57static const struct command __CONCAT(func_name,_cmd) = { \ 58 __STRING(cmd_name), \ 59 func_name, \ 60 flag, \ 61 more \ 62}; \ 63TEXT_SET(set, __CONCAT(func_name,_cmd)); \ 64 \ 65static void \ 66func_name(addr, have_addr, count, modif) \ 67 db_expr_t addr; \ 68 boolean_t have_addr; \ 69 db_expr_t count; \ 70 char *modif; 71 72extern char *esym; 73extern db_expr_t db_maxoff; 74extern int db_active; 75extern int db_indent; 76extern int db_inst_count; 77extern int db_load_count; 78extern int debugger_on_panic; 79extern int db_store_count; 80extern db_expr_t db_radix; 81extern db_expr_t db_max_width; 82extern db_expr_t db_tab_stop_width; 83 84struct vm_map; 85 86#ifdef ALT_BREAK_TO_DEBUGGER 87int db_alt_break(int, int *); 88#endif 89void db_check_interrupt(void); 90void db_clear_watchpoints(void); 91db_addr_t db_disasm(db_addr_t loc, boolean_t altfmt); 92 /* instruction disassembler */ 93void db_error(const char *s); 94int db_expression(db_expr_t *valuep); 95int db_get_variable(db_expr_t *valuep); 96void db_iprintf(const char *,...) __printflike(1, 2); 97struct vm_map *db_map_addr(vm_offset_t); 98boolean_t db_map_current(struct vm_map *); 99boolean_t db_map_equal(struct vm_map *, struct vm_map *); 100void db_print_loc_and_inst(db_addr_t loc); 101void db_printf(const char *fmt, ...) __printflike(1, 2); 102void db_read_bytes(vm_offset_t addr, size_t size, char *data); 103 /* machine-dependent */ 104int db_readline(char *lstart, int lsize); 105void db_restart_at_pc(boolean_t watchpt); 106void db_set_watchpoints(void); 107void db_setup_paging(db_page_calloutfcn_t *callout, void *arg, 108 int maxlines); 109void db_skip_to_eol(void); 110boolean_t db_stop_at_pc(boolean_t *is_breakpoint); 111#define db_strcpy strcpy 112void db_trap(int type, int code); 113int db_value_of_name(const char *name, db_expr_t *valuep); 114void db_write_bytes(vm_offset_t addr, size_t size, char *data); 115 /* machine-dependent */ 116void db_stack_thread(db_expr_t addr, boolean_t have_addr, 117 db_expr_t count, char *modif); 118void kdb_init(void); 119 120db_cmdfcn_t db_breakpoint_cmd; 121db_cmdfcn_t db_continue_cmd; 122db_cmdfcn_t db_delete_cmd; 123db_cmdfcn_t db_deletehwatch_cmd; 124db_cmdfcn_t db_deletewatch_cmd; 125db_cmdfcn_t db_examine_cmd; 126db_cmdfcn_t db_hwatchpoint_cmd; 127db_cmdfcn_t db_listbreak_cmd; 128db_cmdfcn_t db_print_cmd; 129db_cmdfcn_t db_ps; 130db_cmdfcn_t db_search_cmd; 131db_cmdfcn_t db_set_cmd; 132db_cmdfcn_t db_show_regs; 133db_cmdfcn_t db_single_step_cmd; 134db_cmdfcn_t db_stack_trace_cmd; 135db_cmdfcn_t db_trace_until_call_cmd; 136db_cmdfcn_t db_trace_until_matching_cmd; 137db_cmdfcn_t db_watchpoint_cmd; 138db_cmdfcn_t db_write_cmd; 139db_cmdfcn_t db_show_one_thread; 140 141#if 0 142db_cmdfcn_t db_help_cmd; 143db_cmdfcn_t db_show_all_threads; 144db_cmdfcn_t ipc_port_print; 145db_cmdfcn_t vm_page_print; 146#endif 147 148db_page_calloutfcn_t db_simple_pager; 149 150/* Scare the user with backtrace of curthread to console. */ 151void db_print_backtrace(void); 152 153/* 154 * Command table. 155 */ 156struct command { 157 char * name; /* command name */ 158 db_cmdfcn_t *fcn; /* function to call */ 159 int flag; /* extra info: */ 160#define CS_OWN 0x1 /* non-standard syntax */ 161#define CS_MORE 0x2 /* standard syntax, but may have other words 162 * at end */ 163#define CS_SET_DOT 0x100 /* set dot after command */ 164 struct command *more; /* another level of command */ 165}; 166 167/* XXX: UGLY hack */ 168#ifdef CN_DEAD 169/* 170 * Routines to support GDB on an sio port. 171 */ 172extern void *gdb_arg; 173extern cn_getc_t *gdb_getc; 174extern cn_putc_t *gdb_putc; 175#endif 176 177#endif /* !_DDB_DDB_H_ */ 178