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Annotation of Gnu-Mach/ddb/db_break.h, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * Mach Operating System
                      3:  * Copyright (c) 1991,1990 Carnegie Mellon University
                      4:  * All Rights Reserved.
                      5:  * 
                      6:  * Permission to use, copy, modify and distribute this software and its
                      7:  * documentation is hereby granted, provided that both the copyright
                      8:  * notice and this permission notice appear in all copies of the
                      9:  * software, derivative works or modified versions, and any portions
                     10:  * thereof, and that both notices appear in supporting documentation.
                     11:  * 
                     12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
                     14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     15:  * 
                     16:  * Carnegie Mellon requests users of this software to return to
                     17:  * 
                     18:  *  Software Distribution Coordinator  or  [email protected]
                     19:  *  School of Computer Science
                     20:  *  Carnegie Mellon University
                     21:  *  Pittsburgh PA 15213-3890
                     22:  * 
                     23:  * any improvements or extensions that they make and grant Carnegie Mellon
                     24:  * the rights to redistribute these changes.
                     25:  */
                     26: /*
                     27:  *     Author: David B. Golub, Carnegie Mellon University
                     28:  *     Date:   7/90
                     29:  */
                     30: #ifndef        _DDB_DB_BREAK_H_
                     31: #define        _DDB_DB_BREAK_H_
                     32: 
                     33: #include <machine/db_machdep.h>
                     34: #include <kern/thread.h>
                     35: #include <kern/task.h>
                     36: #include <mach/boolean.h>
                     37: 
                     38: /*
                     39:  * thread list at the same breakpoint address
                     40:  */
                     41: struct db_thread_breakpoint {
                     42:        vm_offset_t tb_task_thd;                /* target task or thread */
                     43:        boolean_t tb_is_task;                   /* task qualified */
                     44:        short    tb_number;                     /* breakpoint number */
                     45:        short    tb_init_count;                 /* skip count(initial value) */
                     46:        short    tb_count;                      /* current skip count */
                     47:        short    tb_cond;                       /* break condition */
                     48:        struct   db_thread_breakpoint *tb_next; /* next chain */
                     49: };
                     50: 
                     51: typedef struct db_thread_breakpoint *db_thread_breakpoint_t;
                     52: 
                     53: /*
                     54:  * Breakpoint.
                     55:  */
                     56: 
                     57: struct db_breakpoint {
                     58:        task_t    task;                 /* target task */
                     59:        db_addr_t address;              /* set here */
                     60:        db_thread_breakpoint_t threads; /* thread */
                     61:        int     flags;                  /* flags: */
                     62: #define        BKPT_SINGLE_STEP        0x2     /* to simulate single step */
                     63: #define        BKPT_TEMP               0x4     /* temporary */
                     64: #define BKPT_USR_GLOBAL                0x8     /* global user space break point */
                     65: #define BKPT_SET_IN_MEM                0x10    /* break point is set in memory */
                     66: #define BKPT_1ST_SET           0x20    /* 1st time set of user global bkpt */
                     67:        vm_size_t       bkpt_inst;      /* saved instruction at bkpt */
                     68:        struct db_breakpoint *link;     /* link in in-use or free chain */
                     69: };
                     70: 
                     71: typedef struct db_breakpoint *db_breakpoint_t;
                     72: 
                     73: extern db_breakpoint_t db_find_breakpoint( task_t task, db_addr_t addr);
                     74: extern boolean_t       db_find_breakpoint_here( task_t task, db_addr_t addr);
                     75: extern void            db_set_breakpoints();
                     76: extern void            db_clear_breakpoints();
                     77: extern db_thread_breakpoint_t  db_find_thread_breakpoint_here
                     78:                                        ( task_t task, db_addr_t addr );
                     79: extern db_thread_breakpoint_t  db_find_breakpoint_number
                     80:                                        ( int num, db_breakpoint_t *bkptp);
                     81: 
                     82: extern db_breakpoint_t db_set_temp_breakpoint( task_t task, db_addr_t addr);
                     83: extern void            db_delete_temp_breakpoint
                     84:                                        ( task_t task, db_breakpoint_t bkpt);
                     85: 
                     86: #endif _DDB_DB_BREAK_H_

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