The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sparc64/include/db_machdep.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  *      from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04
   27  * $FreeBSD: releng/6.0/sys/sparc64/include/db_machdep.h 139825 2005-01-07 02:29:27Z imp $
   28  */
   29 
   30 #ifndef _MACHINE_DB_MACHDEP_H_
   31 #define _MACHINE_DB_MACHDEP_H_
   32 
   33 #include <machine/frame.h>
   34 #include <machine/trap.h>
   35 
   36 #define BYTE_MSF        (1)
   37 
   38 typedef vm_offset_t     db_addr_t;
   39 typedef long            db_expr_t;
   40 
   41 #define PC_REGS()       ((db_addr_t)kdb_thrctx->pcb_pc)
   42 
   43 #define BKPT_INST       (0x91d03001)
   44 #define BKPT_SIZE       (4)
   45 #define BKPT_SET(inst)  (BKPT_INST)
   46 
   47 #define BKPT_SKIP do {                                                  \
   48         kdb_frame->tf_tpc = kdb_frame->tf_tnpc + 4;                     \
   49         kdb_frame->tf_tnpc += 8;                                        \
   50 } while (0)
   51 
   52 #define db_clear_single_step    kdb_cpu_clear_singlestep
   53 #define db_set_single_step      kdb_cpu_set_singlestep
   54 
   55 #define IS_BREAKPOINT_TRAP(type, code)  (type == T_BREAKPOINT)
   56 #define IS_WATCHPOINT_TRAP(type, code)  (0)
   57 
   58 #define inst_trap_return(ins)   (0)
   59 #define inst_return(ins)        (0)
   60 #define inst_call(ins)          (0)
   61 #define inst_load(ins)          (0)
   62 #define inst_store(ins)         (0)
   63 
   64 #define DB_SMALL_VALUE_MAX      (0x7fffffff)
   65 #define DB_SMALL_VALUE_MIN      (-0x40001)
   66 
   67 #define DB_ELFSIZE              64
   68 
   69 #endif /* !_MACHINE_DB_MACHDEP_H_ */

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