* Copyright (c) 1991,1990 Carnegie Mellon University
* 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
* 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 the
* rights to redistribute these changes.
* $Id: db_trap.c,v 1.2 1993/10/16 16:47:28 rgrimes Exp $
* Author: David B. Golub, Carnegie Mellon University
* Trap entry point to kernel debugger.
#include <ddb/db_command.h>
#include <ddb/db_break.h>
extern void db_restart_at_pc();
extern boolean_t
db_stop_at_pc();
extern int db_inst_count
;
extern int db_load_count
;
extern int db_store_count
;
bkpt
= IS_BREAKPOINT_TRAP(type
, code
);
watchpt
= IS_WATCHPOINT_TRAP(type
, code
);
if (db_stop_at_pc(&bkpt
)) {
db_printf("After %d instructions (%d loads, %d stores),\n",
db_inst_count
, db_load_count
, db_store_count
);
db_printf("Breakpoint at\t");
db_printf("Watchpoint at\t");
db_printf("Stopped at\t");
db_dot
= PC_REGS(DDB_REGS
);
db_print_loc_and_inst(db_dot
);
db_restart_at_pc(watchpt
);