NetBSD/sys/arch/sparc/include/db_machdep.h

129 lines
3.6 KiB
C

/* $NetBSD: db_machdep.h,v 1.14 2000/06/29 07:40:08 mrg 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 _SPARC_DB_MACHDEP_H_
#define _SPARC_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;
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)
#if defined(lint)
#define PC_REGS(regs) ((regs)->db_tf.tf_pc)
#else
#define PC_REGS(regs) ((db_addr_t)(regs)->db_tf.tf_pc)
#endif
#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 IS_BREAKPOINT_TRAP(type, code) \
((type) == T_BREAKPOINT || (type) == T_KGDB_EXEC)
#define IS_WATCHPOINT_TRAP(type, code) (0)
/*
* Sparc cpus have no hardware single-step.
*/
#define SOFTWARE_SSTEP
boolean_t db_inst_trap_return __P((int inst));
boolean_t db_inst_return __P((int inst));
boolean_t db_inst_call __P((int inst));
boolean_t db_inst_branch __P((int inst));
int db_inst_load __P((int inst));
int db_inst_store __P((int inst));
boolean_t db_inst_unconditional_flow_transfer __P((int inst));
db_addr_t db_branch_taken __P((int inst, db_addr_t pc, db_regs_t *regs));
#define inst_trap_return(ins) db_inst_trap_return(ins)
#define inst_return(ins) db_inst_return(ins)
#define inst_call(ins) db_inst_call(ins)
#define inst_branch(ins) db_inst_branch(ins)
#define inst_load(ins) db_inst_load(ins)
#define inst_store(ins) db_inst_store(ins)
#define inst_unconditional_flow_transfer(ins) \
db_inst_unconditional_flow_transfer(ins)
#define branch_taken(ins, pc, regs) \
db_branch_taken((ins), (pc), (regs))
/* see note in db_interface.c about reversed breakpoint addrs */
#define next_instr_address(pc, bd) \
((bd) ? (pc) : ddb_regs.db_tf.tf_npc)
#define DB_MACHINE_COMMANDS
void db_machine_init __P((void));
int kdb_trap __P((int, struct trapframe *));
/*
* We use both a.out and elf symbols in DDB.
*/
#define DB_AOUT_SYMBOLS
#define DB_ELF_SYMBOLS
#define DB_ELFSIZE 32
/*
* KGDB definitions
*/
typedef u_long kgdb_reg_t;
#define KGDB_NUMREGS 72
#define KGDB_BUFLEN 1024
#endif /* _SPARC_DB_MACHDEP_H_ */