288 lines
9.7 KiB
C
288 lines
9.7 KiB
C
/*-
|
|
* Copyright (c) 1993, Garrett A. Wollman.
|
|
* Copyright (c) 1993, University of Vermont and State Agricultural College.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Necessary declarations for the `ddb' kernel debugger.
|
|
*/
|
|
|
|
#ifndef _DDB_DDB_H_
|
|
#define _DDB_DDB_H_
|
|
|
|
#ifdef SYSCTL_DECL
|
|
SYSCTL_DECL(_debug_ddb);
|
|
#endif
|
|
|
|
#include <machine/db_machdep.h> /* type definitions */
|
|
|
|
#include <sys/queue.h> /* LIST_* */
|
|
#include <sys/kernel.h> /* SYSINIT */
|
|
|
|
#ifndef DB_MAXARGS
|
|
#define DB_MAXARGS 10
|
|
#endif
|
|
|
|
#ifndef DB_MAXLINE
|
|
#define DB_MAXLINE 120
|
|
#endif
|
|
|
|
#ifndef DB_MAXSCRIPTS
|
|
#define DB_MAXSCRIPTS 8
|
|
#endif
|
|
|
|
#ifndef DB_MAXSCRIPTNAME
|
|
#define DB_MAXSCRIPTNAME 32
|
|
#endif
|
|
|
|
#ifndef DB_MAXSCRIPTLEN
|
|
#define DB_MAXSCRIPTLEN 128
|
|
#endif
|
|
|
|
#ifndef DB_MAXSCRIPTRECURSION
|
|
#define DB_MAXSCRIPTRECURSION 3
|
|
#endif
|
|
|
|
#ifndef DB_CALL
|
|
#define DB_CALL db_fncall_generic
|
|
#else
|
|
int DB_CALL(db_expr_t, db_expr_t *, int, db_expr_t[]);
|
|
#endif
|
|
|
|
/*
|
|
* There are three "command tables":
|
|
* - One for simple commands; a list of these is displayed
|
|
* by typing 'help' at the debugger prompt.
|
|
* - One for sub-commands of 'show'; to see this type 'show'
|
|
* without any arguments.
|
|
* - The last one for sub-commands of 'show all'; type 'show all'
|
|
* without any argument to get a list.
|
|
*/
|
|
struct command;
|
|
LIST_HEAD(command_table, command);
|
|
extern struct command_table db_cmd_table;
|
|
extern struct command_table db_show_table;
|
|
extern struct command_table db_show_all_table;
|
|
|
|
/*
|
|
* Type signature for a function implementing a ddb command.
|
|
*/
|
|
typedef void db_cmdfcn_t(db_expr_t addr, boolean_t have_addr, db_expr_t count,
|
|
char *modif);
|
|
|
|
/*
|
|
* Command table entry.
|
|
*/
|
|
struct command {
|
|
char * name; /* command name */
|
|
db_cmdfcn_t *fcn; /* function to call */
|
|
int flag; /* extra info: */
|
|
#define CS_OWN 0x1 /* non-standard syntax */
|
|
#define CS_MORE 0x2 /* standard syntax, but may have other words
|
|
* at end */
|
|
#define CS_SET_DOT 0x100 /* set dot after command */
|
|
struct command_table *more; /* another level of command */
|
|
LIST_ENTRY(command) next; /* next entry in the command table */
|
|
};
|
|
|
|
/*
|
|
* Arrange for the specified ddb command to be defined and
|
|
* bound to the specified function. Commands can be defined
|
|
* in modules in which case they will be available only when
|
|
* the module is loaded.
|
|
*/
|
|
#define _DB_SET(_suffix, _name, _func, list, _flag, _more) \
|
|
static struct command __CONCAT(_name,_suffix) = { \
|
|
.name = __STRING(_name), \
|
|
.fcn = _func, \
|
|
.flag = _flag, \
|
|
.more = _more \
|
|
}; \
|
|
static void __CONCAT(__CONCAT(_name,_suffix),_add)(void *arg __unused) \
|
|
{ db_command_register(&list, &__CONCAT(_name,_suffix)); } \
|
|
SYSINIT(__CONCAT(_name,_suffix), SI_SUB_KLD, SI_ORDER_ANY, \
|
|
__CONCAT(__CONCAT(_name,_suffix),_add), NULL); \
|
|
static void __CONCAT(__CONCAT(_name,_suffix),_del)(void *arg __unused) \
|
|
{ db_command_unregister(&list, &__CONCAT(_name,_suffix)); } \
|
|
SYSUNINIT(__CONCAT(_name,_suffix), SI_SUB_KLD, SI_ORDER_ANY, \
|
|
__CONCAT(__CONCAT(_name,_suffix),_del), NULL);
|
|
|
|
/*
|
|
* Like _DB_SET but also create the function declaration which
|
|
* must be followed immediately by the body; e.g.
|
|
* _DB_FUNC(_cmd, panic, db_panic, db_cmd_table, 0, NULL)
|
|
* {
|
|
* ...panic implementation...
|
|
* }
|
|
*
|
|
* This macro is mostly used to define commands placed in one of
|
|
* the ddb command tables; see DB_COMMAND, etc. below.
|
|
*/
|
|
#define _DB_FUNC(_suffix, _name, _func, list, _flag, _more) \
|
|
static db_cmdfcn_t _func; \
|
|
_DB_SET(_suffix, _name, _func, list, _flag, _more); \
|
|
static void \
|
|
_func(db_expr_t addr, boolean_t have_addr, db_expr_t count, char *modif)
|
|
|
|
/* common idom provided for backwards compatibility */
|
|
#define DB_FUNC(_name, _func, list, _flag, _more) \
|
|
_DB_FUNC(_cmd, _name, _func, list, _flag, _more)
|
|
|
|
#define DB_COMMAND(cmd_name, func_name) \
|
|
_DB_FUNC(_cmd, cmd_name, func_name, db_cmd_table, 0, NULL)
|
|
#define DB_ALIAS(alias_name, func_name) \
|
|
_DB_SET(_cmd, alias_name, func_name, db_cmd_table, 0, NULL)
|
|
#define DB_SHOW_COMMAND(cmd_name, func_name) \
|
|
_DB_FUNC(_show, cmd_name, func_name, db_show_table, 0, NULL)
|
|
#define DB_SHOW_ALIAS(alias_name, func_name) \
|
|
_DB_SET(_show, alias_name, func_name, db_show_table, 0, NULL)
|
|
#define DB_SHOW_ALL_COMMAND(cmd_name, func_name) \
|
|
_DB_FUNC(_show_all, cmd_name, func_name, db_show_all_table, 0, NULL)
|
|
#define DB_SHOW_ALL_ALIAS(alias_name, func_name) \
|
|
_DB_SET(_show_all, alias_name, func_name, db_show_all_table, 0, NULL)
|
|
|
|
extern db_expr_t db_maxoff;
|
|
extern int db_indent;
|
|
extern int db_inst_count;
|
|
extern int db_load_count;
|
|
extern int db_store_count;
|
|
extern volatile int db_pager_quit;
|
|
extern db_expr_t db_radix;
|
|
extern db_expr_t db_max_width;
|
|
extern db_expr_t db_tab_stop_width;
|
|
extern db_expr_t db_lines_per_page;
|
|
|
|
struct thread;
|
|
struct vm_map;
|
|
|
|
void db_check_interrupt(void);
|
|
void db_clear_watchpoints(void);
|
|
db_addr_t db_disasm(db_addr_t loc, boolean_t altfmt);
|
|
/* instruction disassembler */
|
|
void db_error(const char *s);
|
|
int db_expression(db_expr_t *valuep);
|
|
int db_get_variable(db_expr_t *valuep);
|
|
void db_iprintf(const char *,...) __printflike(1, 2);
|
|
struct proc *db_lookup_proc(db_expr_t addr);
|
|
struct thread *db_lookup_thread(db_expr_t addr, boolean_t check_pid);
|
|
struct vm_map *db_map_addr(vm_offset_t);
|
|
boolean_t db_map_current(struct vm_map *);
|
|
boolean_t db_map_equal(struct vm_map *, struct vm_map *);
|
|
int db_md_set_watchpoint(db_expr_t addr, db_expr_t size);
|
|
int db_md_clr_watchpoint(db_expr_t addr, db_expr_t size);
|
|
void db_md_list_watchpoints(void);
|
|
void db_print_loc_and_inst(db_addr_t loc);
|
|
void db_print_thread(void);
|
|
int db_printf(const char *fmt, ...) __printflike(1, 2);
|
|
int db_read_bytes(vm_offset_t addr, size_t size, char *data);
|
|
/* machine-dependent */
|
|
int db_readline(char *lstart, int lsize);
|
|
void db_restart_at_pc(boolean_t watchpt);
|
|
int db_set_variable(db_expr_t value);
|
|
void db_set_watchpoints(void);
|
|
void db_skip_to_eol(void);
|
|
boolean_t db_stop_at_pc(boolean_t *is_breakpoint);
|
|
#define db_strcpy strcpy
|
|
void db_trace_self(void);
|
|
int db_trace_thread(struct thread *, int);
|
|
int db_value_of_name(const char *name, db_expr_t *valuep);
|
|
int db_value_of_name_pcpu(const char *name, db_expr_t *valuep);
|
|
int db_value_of_name_vnet(const char *name, db_expr_t *valuep);
|
|
int db_write_bytes(vm_offset_t addr, size_t size, char *data);
|
|
void db_command_register(struct command_table *, struct command *);
|
|
void db_command_unregister(struct command_table *, struct command *);
|
|
|
|
db_cmdfcn_t db_breakpoint_cmd;
|
|
db_cmdfcn_t db_capture_cmd;
|
|
db_cmdfcn_t db_continue_cmd;
|
|
db_cmdfcn_t db_delete_cmd;
|
|
db_cmdfcn_t db_deletehwatch_cmd;
|
|
db_cmdfcn_t db_deletewatch_cmd;
|
|
db_cmdfcn_t db_examine_cmd;
|
|
db_cmdfcn_t db_findstack_cmd;
|
|
db_cmdfcn_t db_hwatchpoint_cmd;
|
|
db_cmdfcn_t db_listbreak_cmd;
|
|
db_cmdfcn_t db_scripts_cmd;
|
|
db_cmdfcn_t db_print_cmd;
|
|
db_cmdfcn_t db_ps;
|
|
db_cmdfcn_t db_run_cmd;
|
|
db_cmdfcn_t db_script_cmd;
|
|
db_cmdfcn_t db_search_cmd;
|
|
db_cmdfcn_t db_set_cmd;
|
|
db_cmdfcn_t db_set_thread;
|
|
db_cmdfcn_t db_show_regs;
|
|
db_cmdfcn_t db_show_threads;
|
|
db_cmdfcn_t db_single_step_cmd;
|
|
db_cmdfcn_t db_textdump_cmd;
|
|
db_cmdfcn_t db_trace_until_call_cmd;
|
|
db_cmdfcn_t db_trace_until_matching_cmd;
|
|
db_cmdfcn_t db_unscript_cmd;
|
|
db_cmdfcn_t db_watchpoint_cmd;
|
|
db_cmdfcn_t db_write_cmd;
|
|
|
|
/*
|
|
* Interface between DDB and the DDB output capture facility.
|
|
*/
|
|
struct dumperinfo;
|
|
void db_capture_dump(struct dumperinfo *di);
|
|
void db_capture_enterpager(void);
|
|
void db_capture_exitpager(void);
|
|
void db_capture_write(char *buffer, u_int buflen);
|
|
void db_capture_writech(char ch);
|
|
|
|
/*
|
|
* Interface between DDB and the script facility.
|
|
*/
|
|
void db_script_kdbenter(const char *eventname); /* KDB enter event. */
|
|
|
|
/*
|
|
* Interface between DDB and the textdump facility.
|
|
*
|
|
* Text dump blocks are of a fixed size; textdump_block_buffer is a
|
|
* statically allocated buffer that code interacting with textdumps can use
|
|
* to prepare and hold a pending block in when calling writenextblock().
|
|
*/
|
|
#define TEXTDUMP_BLOCKSIZE 512
|
|
extern char textdump_block_buffer[TEXTDUMP_BLOCKSIZE];
|
|
|
|
void textdump_mkustar(char *block_buffer, const char *filename,
|
|
u_int size);
|
|
void textdump_restoreoff(off_t offset);
|
|
void textdump_saveoff(off_t *offsetp);
|
|
int textdump_writenextblock(struct dumperinfo *di, char *buffer);
|
|
|
|
/*
|
|
* Interface between the kernel and textdumps.
|
|
*/
|
|
extern int textdump_pending; /* Call textdump_dumpsys() instead. */
|
|
void textdump_dumpsys(struct dumperinfo *di);
|
|
|
|
#endif /* !_DDB_DDB_H_ */
|