db_access.h

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    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  Software.Distribution@CS.CMU.EDU
   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  * HISTORY
   28  * $Log:        db_access.h,v $
   29  * Revision 2.6  93/01/14  17:24:19  danner
   30  *      Enabled prototypes.
   31  *      [92/11/30            af]
   32  * 
   33  * Revision 2.5  91/10/09  15:57:01  af
   34  *      Added declarations of db_{get,put}_task_value.
   35  *      Added definitions of implementation dependent access capability.
   36  *      Added default defines of space access check functions.
   37  *      [91/08/29            tak]
   38  * 
   39  * Revision 2.4  91/05/14  15:31:48  mrt
   40  *      Correcting copyright
   41  * 
   42  * Revision 2.3  91/02/05  17:05:49  mrt
   43  *      Changed to new Mach copyright
   44  *      [91/01/31  16:16:37  mrt]
   45  * 
   46  * Revision 2.2  90/08/27  21:48:27  dbg
   47  *      Created.
   48  *      [90/08/07            dbg]
   49  * 
   50  */
   51 /*
   52  *      Author: David B. Golub, Carnegie Mellon University
   53  *      Date:   7/90
   54  */
   55 /*
   56  * Data access functions for debugger.
   57  */
   58 #include <mach/boolean.h>
   59 #include <machine/db_machdep.h>
   60 #include <ddb/db_task_thread.h>
   61 
   62 /* implementation dependent access capability */
   63 #define DB_ACCESS_KERNEL        0       /* only kernel space */
   64 #define DB_ACCESS_CURRENT       1       /* kernel or current task space */
   65 #define DB_ACCESS_ANY           2       /* any space */
   66 
   67 #ifndef DB_ACCESS_LEVEL
   68 #define DB_ACCESS_LEVEL         DB_ACCESS_KERNEL
   69 #endif  DB_ACCESS_LEVEL
   70 
   71 #ifndef DB_VALID_KERN_ADDR
   72 #define DB_VALID_KERN_ADDR(addr)        ((addr) >= VM_MIN_KERNEL_ADDRESS \
   73                                           && (addr) < VM_MAX_KERNEL_ADDRESS)
   74 #define DB_VALID_ADDRESS(addr,user)     ((user != 0) ^ DB_VALID_KERN_ADDR(addr))
   75 #define DB_PHYS_EQ(task1,addr1,task2,addr2)     0
   76 #define DB_CHECK_ACCESS(addr,size,task) db_is_current_task(task)
   77 #endif  DB_VALID_KERN_ADDR
   78 
   79 extern int db_access_level;
   80 
   81 extern db_expr_t db_get_value(  db_addr_t addr,
   82                                 int size,
   83                                 boolean_t is_signed );
   84 
   85 extern void      db_put_value(  db_addr_t addr,
   86                                 int size,
   87                                 db_expr_t value );
   88 
   89 extern db_expr_t db_get_task_value(     db_addr_t addr,
   90                                         int size,
   91                                         boolean_t is_signed,
   92                                         task_t task );
   93 
   94 extern void      db_put_task_value(     db_addr_t addr,
   95                                         int size,
   96                                         db_expr_t value,
   97                                         task_t task );

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FreeBSD/Linux Kernel Cross Reference sys/ddb/db_access.h

FreeBSD/Linux Kernel Cross Reference
sys/ddb/db_access.h