Home | History | Annotate | Line # | Download | only in include
db_machdep.h revision 1.1
      1  1.1  sakamoto /*	$OpenBSD: db_machdep.h,v 1.2 1997/03/21 00:48:48 niklas Exp $	*/
      2  1.1  sakamoto /*	$NetBSD: db_machdep.h,v 1.1 1997/10/14 06:48:14 sakamoto Exp $	*/
      3  1.1  sakamoto 
      4  1.1  sakamoto /*
      5  1.1  sakamoto  * Mach Operating System
      6  1.1  sakamoto  * Copyright (c) 1992 Carnegie Mellon University
      7  1.1  sakamoto  * All Rights Reserved.
      8  1.1  sakamoto  *
      9  1.1  sakamoto  * Permission to use, copy, modify and distribute this software and its
     10  1.1  sakamoto  * documentation is hereby granted, provided that both the copyright
     11  1.1  sakamoto  * notice and this permission notice appear in all copies of the
     12  1.1  sakamoto  * software, derivative works or modified versions, and any portions
     13  1.1  sakamoto  * thereof, and that both notices appear in supporting documentation.
     14  1.1  sakamoto  *
     15  1.1  sakamoto  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  1.1  sakamoto  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     17  1.1  sakamoto  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  1.1  sakamoto  *
     19  1.1  sakamoto  * Carnegie Mellon requests users of this software to return to
     20  1.1  sakamoto  *
     21  1.1  sakamoto  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  1.1  sakamoto  *  School of Computer Science
     23  1.1  sakamoto  *  Carnegie Mellon University
     24  1.1  sakamoto  *  Pittsburgh PA 15213-3890
     25  1.1  sakamoto  *
     26  1.1  sakamoto  * any improvements or extensions that they make and grant Carnegie Mellon
     27  1.1  sakamoto  * the rights to redistribute these changes.
     28  1.1  sakamoto  */
     29  1.1  sakamoto 
     30  1.1  sakamoto /*
     31  1.1  sakamoto  * Machine-dependent defines for new kernel debugger.
     32  1.1  sakamoto  */
     33  1.1  sakamoto #ifndef	_PPC_DB_MACHDEP_H_
     34  1.1  sakamoto #define	_PPC_DB_MACHDEP_H_
     35  1.1  sakamoto 
     36  1.1  sakamoto #include <vm/vm_prot.h>
     37  1.1  sakamoto #include <vm/vm_param.h>
     38  1.1  sakamoto #include <vm/vm_inherit.h>
     39  1.1  sakamoto #include <machine/trap.h>
     40  1.1  sakamoto 
     41  1.1  sakamoto #define	DB_ELF_SYMBOLS
     42  1.1  sakamoto #define	DB_ELFSIZE	32
     43  1.1  sakamoto 
     44  1.1  sakamoto typedef	vm_offset_t	db_addr_t;	/* address - unsigned */
     45  1.1  sakamoto typedef	int		db_expr_t;	/* expression - signed */
     46  1.1  sakamoto struct powerpc_saved_state {
     47  1.1  sakamoto 	u_int32_t	r0;		/* data registers */
     48  1.1  sakamoto 	u_int32_t	r1;
     49  1.1  sakamoto 	u_int32_t	r2;
     50  1.1  sakamoto 	u_int32_t	r3;
     51  1.1  sakamoto 	u_int32_t	r4;
     52  1.1  sakamoto 	u_int32_t	r5;
     53  1.1  sakamoto 	u_int32_t	r6;
     54  1.1  sakamoto 	u_int32_t	r7;
     55  1.1  sakamoto 	u_int32_t	r8;
     56  1.1  sakamoto 	u_int32_t	r9;
     57  1.1  sakamoto 	u_int32_t	r10;
     58  1.1  sakamoto 	u_int32_t	r11;
     59  1.1  sakamoto 	u_int32_t	r12;
     60  1.1  sakamoto 	u_int32_t	r13;
     61  1.1  sakamoto 	u_int32_t	r14;
     62  1.1  sakamoto 	u_int32_t	r15;
     63  1.1  sakamoto 	u_int32_t	r16;
     64  1.1  sakamoto 	u_int32_t	r17;
     65  1.1  sakamoto 	u_int32_t	r18;
     66  1.1  sakamoto 	u_int32_t	r19;
     67  1.1  sakamoto 	u_int32_t	r20;
     68  1.1  sakamoto 	u_int32_t	r21;
     69  1.1  sakamoto 	u_int32_t	r22;
     70  1.1  sakamoto 	u_int32_t	r23;
     71  1.1  sakamoto 	u_int32_t	r24;
     72  1.1  sakamoto 	u_int32_t	r25;
     73  1.1  sakamoto 	u_int32_t	r26;
     74  1.1  sakamoto 	u_int32_t	r27;
     75  1.1  sakamoto 	u_int32_t	r28;
     76  1.1  sakamoto 	u_int32_t	r29;
     77  1.1  sakamoto 	u_int32_t	r30;
     78  1.1  sakamoto 	u_int32_t	r31;
     79  1.1  sakamoto 	u_int32_t	r32;
     80  1.1  sakamoto 	u_int32_t	iar;
     81  1.1  sakamoto 	u_int32_t	msr;
     82  1.1  sakamoto };
     83  1.1  sakamoto typedef struct powerpc_saved_state db_regs_t;
     84  1.1  sakamoto db_regs_t	ddb_regs;		/* register state */
     85  1.1  sakamoto #define DDB_REGS	(&ddb_regs)
     86  1.1  sakamoto 
     87  1.1  sakamoto #define	PC_REGS(regs)	((db_addr_t)(regs)->iar)
     88  1.1  sakamoto 
     89  1.1  sakamoto #define	BKPT_INST	0x7C810808	/* breakpoint instruction */
     90  1.1  sakamoto 
     91  1.1  sakamoto #define	BKPT_SIZE	(4)		/* size of breakpoint inst */
     92  1.1  sakamoto #define	BKPT_SET(inst)	(BKPT_INST)
     93  1.1  sakamoto 
     94  1.1  sakamoto #define	FIXUP_PC_AFTER_BREAK(regs)	((regs)->iar -= 4)
     95  1.1  sakamoto 
     96  1.1  sakamoto #define SR_SINGLESTEP	0x400
     97  1.1  sakamoto #define	db_clear_single_step(regs)	((regs)->msr &= ~SR_SINGLESTEP)
     98  1.1  sakamoto #define	db_set_single_step(regs)	((regs)->msr |=  SR_SINGLESTEP)
     99  1.1  sakamoto 
    100  1.1  sakamoto #define T_BREAKPOINT	0xffff
    101  1.1  sakamoto #define	IS_BREAKPOINT_TRAP(type, code)	((type) == T_BREAKPOINT)
    102  1.1  sakamoto 
    103  1.1  sakamoto #define T_WATCHPOINT	0xeeee
    104  1.1  sakamoto #ifdef T_WATCHPOINT
    105  1.1  sakamoto #define	IS_WATCHPOINT_TRAP(type, code)	((type) == T_WATCHPOINT)
    106  1.1  sakamoto #else
    107  1.1  sakamoto #define	IS_WATCHPOINT_TRAP(type, code)	0
    108  1.1  sakamoto #endif
    109  1.1  sakamoto 
    110  1.1  sakamoto #define	M_RTS		0xfc0007fe
    111  1.1  sakamoto #define I_RTS		0x4c000020
    112  1.1  sakamoto #define M_BC		0xfc000000
    113  1.1  sakamoto #define I_BC		0x40000000
    114  1.1  sakamoto #define M_B		0xfc000000
    115  1.1  sakamoto #define I_B		0x50000000
    116  1.1  sakamoto #define	M_RFI		0xfc0007fe
    117  1.1  sakamoto #define	I_RFI		0x4c000064
    118  1.1  sakamoto 
    119  1.1  sakamoto #define	inst_trap_return(ins)	(((ins)&M_RFI) == I_RFI)
    120  1.1  sakamoto #define	inst_return(ins)	(((ins)&M_RTS) == I_RTS)
    121  1.1  sakamoto #define	inst_call(ins)		(((ins)&M_BC ) == I_BC  || \
    122  1.1  sakamoto 				 ((ins)&M_B  ) == I_B )
    123  1.1  sakamoto #define inst_load(ins)		0
    124  1.1  sakamoto #define inst_store(ins)		0
    125  1.1  sakamoto 
    126  1.1  sakamoto #ifdef _KERNEL
    127  1.1  sakamoto 
    128  1.1  sakamoto void	kdb_kintr __P((void *));
    129  1.1  sakamoto int	kdb_trap __P((int, void *));
    130  1.1  sakamoto 
    131  1.1  sakamoto #endif /* _KERNEL */
    132  1.1  sakamoto 
    133  1.1  sakamoto #endif	/* _PPC_DB_MACHDEP_H_ */
    134