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db_machdep.h revision 1.17.2.2
      1  1.17.2.2  jdolecek /*	$NetBSD: db_machdep.h,v 1.17.2.2 2002/10/10 18:33:28 jdolecek Exp $	*/
      2       1.8       cgd 
      3       1.1       cgd /*
      4       1.1       cgd  * Mach Operating System
      5       1.1       cgd  * Copyright (c) 1991,1990 Carnegie Mellon University
      6       1.1       cgd  * All Rights Reserved.
      7       1.1       cgd  *
      8       1.1       cgd  * Permission to use, copy, modify and distribute this software and its
      9       1.1       cgd  * documentation is hereby granted, provided that both the copyright
     10       1.1       cgd  * notice and this permission notice appear in all copies of the
     11       1.1       cgd  * software, derivative works or modified versions, and any portions
     12       1.1       cgd  * thereof, and that both notices appear in supporting documentation.
     13       1.1       cgd  *
     14       1.1       cgd  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     15       1.1       cgd  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     16       1.1       cgd  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     17       1.1       cgd  *
     18       1.1       cgd  * Carnegie Mellon requests users of this software to return to
     19       1.1       cgd  *
     20       1.1       cgd  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     21       1.1       cgd  *  School of Computer Science
     22       1.1       cgd  *  Carnegie Mellon University
     23       1.1       cgd  *  Pittsburgh PA 15213-3890
     24       1.1       cgd  *
     25       1.1       cgd  * any improvements or extensions that they make and grant Carnegie Mellon
     26       1.1       cgd  * the rights to redistribute these changes.
     27       1.1       cgd  */
     28       1.1       cgd 
     29       1.1       cgd #ifndef	_I386_DB_MACHDEP_H_
     30       1.1       cgd #define	_I386_DB_MACHDEP_H_
     31       1.1       cgd 
     32       1.1       cgd /*
     33       1.1       cgd  * Machine-dependent defines for new kernel debugger.
     34       1.1       cgd  */
     35       1.1       cgd 
     36       1.5   mycroft #include <sys/param.h>
     37      1.15       mrg #include <uvm/uvm_extern.h>
     38       1.1       cgd #include <machine/trap.h>
     39       1.1       cgd 
     40      1.13   thorpej typedef	vaddr_t		db_addr_t;	/* address - unsigned */
     41      1.10   mycroft typedef	long		db_expr_t;	/* expression - signed */
     42       1.1       cgd 
     43       1.6   mycroft typedef struct trapframe db_regs_t;
     44  1.17.2.2  jdolecek #ifndef MULTIPROCESSOR
     45  1.17.2.1  jdolecek extern db_regs_t ddb_regs;	/* register state */
     46       1.1       cgd #define	DDB_REGS	(&ddb_regs)
     47  1.17.2.2  jdolecek #else
     48  1.17.2.2  jdolecek extern db_regs_t *ddb_regp;
     49  1.17.2.2  jdolecek #define DDB_REGS	(ddb_regp)
     50  1.17.2.2  jdolecek #define ddb_regs	(*ddb_regp)
     51  1.17.2.2  jdolecek #endif
     52       1.1       cgd 
     53      1.16     lukem #if defined(lint)
     54      1.16     lukem #define	PC_REGS(regs)	((regs)->tf_eip)
     55      1.16     lukem #else
     56       1.1       cgd #define	PC_REGS(regs)	((db_addr_t)(regs)->tf_eip)
     57      1.16     lukem #endif
     58       1.1       cgd 
     59       1.1       cgd #define	BKPT_INST	0xcc		/* breakpoint instruction */
     60       1.1       cgd #define	BKPT_SIZE	(1)		/* size of breakpoint inst */
     61       1.1       cgd #define	BKPT_SET(inst)	(BKPT_INST)
     62       1.1       cgd 
     63      1.11       gwr #define	FIXUP_PC_AFTER_BREAK(regs)	((regs)->tf_eip -= BKPT_SIZE)
     64       1.1       cgd 
     65       1.3   mycroft #define	db_clear_single_step(regs)	((regs)->tf_eflags &= ~PSL_T)
     66       1.3   mycroft #define	db_set_single_step(regs)	((regs)->tf_eflags |=  PSL_T)
     67       1.1       cgd 
     68       1.1       cgd #define	IS_BREAKPOINT_TRAP(type, code)	((type) == T_BPTFLT)
     69       1.3   mycroft #define IS_WATCHPOINT_TRAP(type, code)	((type) == T_TRCTRAP && (code) & 15)
     70       1.1       cgd 
     71       1.1       cgd #define	I_CALL		0xe8
     72       1.1       cgd #define	I_CALLI		0xff
     73       1.1       cgd #define	I_RET		0xc3
     74       1.1       cgd #define	I_IRET		0xcf
     75       1.1       cgd 
     76       1.1       cgd #define	inst_trap_return(ins)	(((ins)&0xff) == I_IRET)
     77       1.1       cgd #define	inst_return(ins)	(((ins)&0xff) == I_RET)
     78       1.1       cgd #define	inst_call(ins)		(((ins)&0xff) == I_CALL || \
     79       1.1       cgd 				 (((ins)&0xff) == I_CALLI && \
     80       1.1       cgd 				  ((ins)&0x3800) == 0x1000))
     81       1.1       cgd #define inst_load(ins)		0
     82       1.1       cgd #define inst_store(ins)		0
     83       1.1       cgd 
     84       1.1       cgd /* access capability and access macros */
     85       1.1       cgd 
     86       1.1       cgd #define DB_ACCESS_LEVEL		2	/* access any space */
     87       1.1       cgd #define DB_CHECK_ACCESS(addr,size,task)				\
     88       1.1       cgd 	db_check_access(addr,size,task)
     89       1.1       cgd #define DB_PHYS_EQ(task1,addr1,task2,addr2)			\
     90       1.1       cgd 	db_phys_eq(task1,addr1,task2,addr2)
     91       1.1       cgd #define DB_VALID_KERN_ADDR(addr)				\
     92       1.1       cgd 	((addr) >= VM_MIN_KERNEL_ADDRESS && 			\
     93       1.1       cgd 	 (addr) < VM_MAX_KERNEL_ADDRESS)
     94       1.1       cgd #define DB_VALID_ADDRESS(addr,user)				\
     95       1.1       cgd 	((!(user) && DB_VALID_KERN_ADDR(addr)) ||		\
     96       1.3   mycroft 	 ((user) && (addr) < VM_MAX_ADDRESS))
     97       1.1       cgd 
     98       1.9  christos #if 0
     99      1.13   thorpej boolean_t 	db_check_access __P((vaddr_t, int, task_t));
    100      1.13   thorpej boolean_t	db_phys_eq __P((task_t, vaddr_t, task_t, vaddr_t));
    101       1.9  christos #endif
    102       1.1       cgd 
    103       1.1       cgd /* macros for printing OS server dependent task name */
    104       1.1       cgd 
    105       1.1       cgd #define DB_TASK_NAME(task)	db_task_name(task)
    106       1.1       cgd #define DB_TASK_NAME_TITLE	"COMMAND                "
    107       1.1       cgd #define DB_TASK_NAME_LEN	23
    108       1.1       cgd #define DB_NULL_TASK_NAME	"?                      "
    109       1.1       cgd 
    110      1.12   thorpej /*
    111      1.12   thorpej  * Constants for KGDB.
    112      1.12   thorpej  */
    113      1.12   thorpej typedef	long		kgdb_reg_t;
    114      1.17  sommerfe #define	KGDB_NUMREGS	16
    115      1.12   thorpej #define	KGDB_BUFLEN	512
    116      1.12   thorpej 
    117       1.9  christos #if 0
    118       1.1       cgd void		db_task_name(/* task_t */);
    119       1.9  christos #endif
    120       1.1       cgd 
    121       1.1       cgd /* macro for checking if a thread has used floating-point */
    122       1.1       cgd 
    123       1.1       cgd #define db_thread_fp_used(thread)	((thread)->pcb->ims.ifps != 0)
    124       1.9  christos 
    125       1.9  christos int kdb_trap __P((int, int, db_regs_t *));
    126      1.12   thorpej 
    127      1.12   thorpej /*
    128  1.17.2.2  jdolecek  * We define some of our own commands
    129  1.17.2.2  jdolecek  */
    130  1.17.2.2  jdolecek #define DB_MACHINE_COMMANDS
    131  1.17.2.2  jdolecek 
    132  1.17.2.2  jdolecek /*
    133      1.14   thorpej  * We use either a.out or Elf32 symbols in DDB.
    134      1.12   thorpej  */
    135      1.12   thorpej #define	DB_AOUT_SYMBOLS
    136      1.14   thorpej #define	DB_ELF_SYMBOLS
    137      1.14   thorpej #define	DB_ELFSIZE	32
    138  1.17.2.2  jdolecek 
    139  1.17.2.2  jdolecek extern void db_machine_init __P((void));
    140  1.17.2.2  jdolecek 
    141  1.17.2.2  jdolecek extern void cpu_debug_dump __P((void));
    142       1.1       cgd 
    143       1.1       cgd #endif	/* _I386_DB_MACHDEP_H_ */
    144