edb333eef8
implement ALT_BREAK_TO_DEBUGGER. The caller provides a pointer to a state variable to allow different state to be maintained for separate instances of a device. - Use struct vm_map * instead of vm_map_t in db_break.h to avoid its users needing to include vm headers. Requested by: njl
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
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* Mach Operating System
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* Copyright (c) 1991,1990 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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* $FreeBSD$
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*/
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/*
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* Author: David B. Golub, Carnegie Mellon University
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* Date: 7/90
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*/
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#ifndef _DDB_DB_BREAK_H_
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#define _DDB_DB_BREAK_H_
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/*
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* Breakpoint.
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*/
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#ifndef BKPT_INST_TYPE
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#define BKPT_INST_TYPE int
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#endif
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struct vm_map;
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struct db_breakpoint {
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struct vm_map *map; /* in this map */
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db_addr_t address; /* set here */
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int init_count; /* number of times to skip bkpt */
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int count; /* current count */
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int flags; /* flags: */
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#define BKPT_SINGLE_STEP 0x2 /* to simulate single step */
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#define BKPT_TEMP 0x4 /* temporary */
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BKPT_INST_TYPE bkpt_inst; /* saved instruction at bkpt */
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struct db_breakpoint *link; /* link in in-use or free chain */
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};
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typedef struct db_breakpoint *db_breakpoint_t;
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void db_clear_breakpoints(void);
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#ifdef SOFTWARE_SSTEP
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void db_delete_temp_breakpoint(db_breakpoint_t);
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#endif
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db_breakpoint_t db_find_breakpoint_here(db_addr_t addr);
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void db_set_breakpoints(void);
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#ifdef SOFTWARE_SSTEP
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db_breakpoint_t db_set_temp_breakpoint(db_addr_t);
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#endif
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#ifdef ALT_BREAK_TO_DEBUGGER
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int db_alt_break(int, int *);
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#endif
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#endif /* !_DDB_DB_BREAK_H_ */
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