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/* $OpenBSD: db_machdep.h,v 1.15 2011/03/23 16:54:37 pirofti Exp $ */
/* $NetBSD: db_machdep.h,v 1.10 1997/08/31 21:23:40 pk Exp $ */
/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#ifndef _MACHINE_DB_MACHDEP_H_
#define _MACHINE_DB_MACHDEP_H_
/*
* Machine-dependent defines for new kernel debugger.
*/
#include <uvm/uvm_extern.h>
#include <machine/frame.h>
#include <machine/psl.h>
#include <machine/trap.h>
#include <machine/reg.h>
/* end of mangling */
typedef vaddr_t db_addr_t; /* address - unsigned */
typedef long db_expr_t; /* expression - signed */
typedef struct {
struct trapframe db_tf;
struct frame db_fr;
} db_regs_t;
extern db_regs_t ddb_regs; /* register state */
#define DDB_REGS (&ddb_regs)
#define DDB_TF (&ddb_regs.db_tf)
#define DDB_FR (&ddb_regs.db_fr)
#define PC_REGS(regs) ((db_addr_t)(regs)->db_tf.tf_pc)
#define SET_PC_REGS(regs, value) (regs)->db_tf.tf_pc = (int)(value)
#define PC_ADVANCE(regs) do { \
int n = (regs)->db_tf.tf_npc; \
(regs)->db_tf.tf_pc = n; \
(regs)->db_tf.tf_npc = n + 4; \
} while(0)
#define BKPT_INST 0x91d02001 /* breakpoint instruction */
#define BKPT_SIZE (4) /* size of breakpoint inst */
#define BKPT_SET(inst) (BKPT_INST)
#define db_clear_single_step(regs) (void) (0)
#define db_set_single_step(regs) (void) (0)
#define IS_BREAKPOINT_TRAP(type, code) \
((type) == T_BREAKPOINT || (type) == T_KGDB_EXEC)
#define IS_WATCHPOINT_TRAP(type, code) (0)
#define inst_trap_return(ins) ((ins)&0)
#define inst_return(ins) ((ins)&0)
#define inst_call(ins) ((ins)&0)
#define DB_MACHINE_COMMANDS
void db_machine_init(void);
int kdb_trap(int, struct trapframe *);
#define DB_ELF_SYMBOLS
#define DB_ELFSIZE 32
/*
* KGDB definitions
*/
typedef u_long kgdb_reg_t;
#define KGDB_NUMREGS 72
#define KGDB_BUFLEN 1024
#define KGDB_PREPARE fb_unblank()
#define KGDB_ENTER __asm("ta %0" :: "n" (T_KGDB_EXEC))
#endif /* _MACHINE_DB_MACHDEP_H_ */
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