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/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* Author: David B. Golub, Carnegie Mellon University
* Date: 7/90
*/
#ifndef _DDB_DB_BREAK_H_
#define _DDB_DB_BREAK_H_
#include <machine/db_machdep.h>
#include <kern/thread.h>
#include <kern/task.h>
#include <mach/boolean.h>
/*
* thread list at the same breakpoint address
*/
struct db_thread_breakpoint {
vm_offset_t tb_task_thd; /* target task or thread */
boolean_t tb_is_task; /* task qualified */
short tb_number; /* breakpoint number */
short tb_init_count; /* skip count(initial value) */
short tb_count; /* current skip count */
short tb_cond; /* break condition */
struct db_thread_breakpoint *tb_next; /* next chain */
};
typedef struct db_thread_breakpoint *db_thread_breakpoint_t;
/*
* Breakpoint.
*/
struct db_breakpoint {
task_t task; /* target task */
db_addr_t address; /* set here */
db_thread_breakpoint_t threads; /* thread */
int flags; /* flags: */
#define BKPT_SINGLE_STEP 0x2 /* to simulate single step */
#define BKPT_TEMP 0x4 /* temporary */
#define BKPT_USR_GLOBAL 0x8 /* global user space break point */
#define BKPT_SET_IN_MEM 0x10 /* break point is set in memory */
#define BKPT_1ST_SET 0x20 /* 1st time set of user global bkpt */
#define BKPT_EXTERNAL 0x40 /* break point is not from ddb */
vm_size_t bkpt_inst; /* saved instruction at bkpt */
struct db_breakpoint *link; /* link in in-use or free chain */
};
typedef struct db_breakpoint *db_breakpoint_t;
extern db_breakpoint_t db_find_breakpoint( const task_t task, db_addr_t addr);
extern boolean_t db_find_breakpoint_here( const task_t task, db_addr_t addr);
extern void db_set_breakpoints(void);
extern void db_clear_breakpoints(void);
extern db_thread_breakpoint_t db_find_thread_breakpoint_here
( const task_t task, db_addr_t addr );
extern db_thread_breakpoint_t db_find_breakpoint_number
( int num, db_breakpoint_t *bkptp);
extern db_breakpoint_t db_set_temp_breakpoint( task_t task, db_addr_t addr);
extern void db_delete_temp_breakpoint
( task_t task, db_breakpoint_t bkpt);
extern db_breakpoint_t db_set_breakpoint(const task_t task, db_addr_t addr,
int count, const thread_t thread,
boolean_t task_bpt);
void db_listbreak_cmd(void);
void db_delete_cmd(void);
void db_breakpoint_cmd(
db_expr_t addr,
int have_addr,
db_expr_t count,
const char * modif);
extern void db_check_breakpoint_valid(void);
#endif /* _DDB_DB_BREAK_H_ */
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