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