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Annotation of Gnu-Mach/ddb/db_access.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: /*
                     31:  * Data access functions for debugger.
                     32:  */
                     33: #include <mach/boolean.h>
                     34: #include <machine/db_machdep.h>
                     35: #include <ddb/db_task_thread.h>
                     36: #include "vm_param.h"
                     37: 
                     38: /* implementation dependent access capability */
                     39: #define        DB_ACCESS_KERNEL        0       /* only kernel space */
                     40: #define DB_ACCESS_CURRENT      1       /* kernel or current task space */
                     41: #define DB_ACCESS_ANY          2       /* any space */
                     42: 
                     43: #ifndef        DB_ACCESS_LEVEL
                     44: #define DB_ACCESS_LEVEL                DB_ACCESS_KERNEL
                     45: #endif DB_ACCESS_LEVEL
                     46: 
                     47: #ifndef DB_VALID_KERN_ADDR
                     48: #define DB_VALID_KERN_ADDR(addr)       ((addr) >= VM_MIN_KERNEL_ADDRESS \
                     49:                                          && (addr) < VM_MAX_KERNEL_ADDRESS)
                     50: #define DB_VALID_ADDRESS(addr,user)    ((user != 0) ^ DB_VALID_KERN_ADDR(addr))
                     51: #define DB_PHYS_EQ(task1,addr1,task2,addr2)    0
                     52: #define DB_CHECK_ACCESS(addr,size,task)        db_is_current_task(task)
                     53: #endif DB_VALID_KERN_ADDR
                     54: 
                     55: extern int db_access_level;
                     56: 
                     57: extern db_expr_t db_get_value( db_addr_t addr,
                     58:                                int size,
                     59:                                boolean_t is_signed );
                     60: 
                     61: extern void     db_put_value(  db_addr_t addr,
                     62:                                int size,
                     63:                                db_expr_t value );
                     64: 
                     65: extern db_expr_t db_get_task_value(    db_addr_t addr,
                     66:                                        int size,
                     67:                                        boolean_t is_signed,
                     68:                                        task_t task );
                     69: 
                     70: extern void     db_put_task_value(     db_addr_t addr,
                     71:                                        int size,
                     72:                                        db_expr_t value,
                     73:                                        task_t task );

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