NetBSD/sys/arch/arm26/include/db_machdep.h

94 lines
2.8 KiB
C

/* $NetBSD: db_machdep.h,v 1.4 2001/01/22 22:10:45 bjh21 Exp $ */
/*
* Copyright (c) 1996 Scott K Stevens
*
* 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 _ARM26_DB_MACHDEP_H_
#define _ARM26_DB_MACHDEP_H_
/*
* Machine-dependent defines for new kernel debugger.
*/
#include <uvm/uvm_extern.h>
#include <arm/armreg.h>
#include <machine/frame.h>
typedef vm_offset_t db_addr_t; /* address - unsigned */
typedef long db_expr_t; /* expression - signed */
typedef struct {
trapframe_t ddb_tf;
} db_regs_t;
db_regs_t ddb_regs; /* register state */
#define DDB_REGS (&ddb_regs)
#define DDB_TF (&ddb_regs.ddb_tf)
#define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_r15 & R15_PC)
#define PC_ADVANCE(regs) ((regs)->ddb_tf.tf_r15 += 4)
#define BKPT_INST (0xe7ffffff) /* breakpoint instruction */
#define BKPT_SIZE (INSN_SIZE) /* size of breakpoint inst */
#define BKPT_SET(inst) (BKPT_INST)
/*#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->ddb_tf.tf_pc -= BKPT_SIZE)*/
#define T_BREAKPOINT (1)
#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT)
#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) & 0x0f000000) == 0x0b000000)
#define inst_branch(ins) (((ins) & 0x0f000000) == 0x0a000000)
#define inst_load(ins) 0
#define inst_store(ins) 0
#define inst_unconditional_flow_transfer(ins) (((ins) & 0xf0000000) == 0xe0000000)
#define getreg_val (0)
#define next_instr_address(pc, bd) (pc + INSN_SIZE)
#define DB_MACHINE_COMMANDS
#define SOFTWARE_SSTEP
u_int branch_taken __P((u_int insn, u_int pc, db_regs_t *db_regs));
/*
* We use ELF symbols in DDB.
*/
#define DB_ELF_SYMBOLS
#define DB_ELFSIZE 32
/* Entry point from undefined instruction handler */
int kdb_trap __P((int, db_regs_t *));
#endif /* _ARM26_DB_MACHDEP_H_ */