2000-06-29 12:32:34 +04:00
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/* $NetBSD: db_machdep.h,v 1.2 2000/06/29 08:32:36 mrg Exp $ */
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2000-05-10 01:55:44 +04:00
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/*
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* Copyright (c) 1996 Scott K Stevens
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*
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* Mach Operating System
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* Copyright (c) 1991,1990 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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#ifndef _ARM26_DB_MACHDEP_H_
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#define _ARM26_DB_MACHDEP_H_
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/*
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* Machine-dependent defines for new kernel debugger.
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*/
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2000-06-29 12:32:34 +04:00
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#include <uvm/uvm_extern.h>
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2000-05-10 01:55:44 +04:00
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#include <machine/armreg.h>
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#include <machine/frame.h>
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typedef vm_offset_t db_addr_t; /* address - unsigned */
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typedef long db_expr_t; /* expression - signed */
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typedef struct {
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trapframe_t ddb_tf;
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} db_regs_t;
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db_regs_t ddb_regs; /* register state */
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#define DDB_REGS (&ddb_regs)
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#define DDB_TF (&ddb_regs.ddb_tf)
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#define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_r15 & R15_PC)
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#define PC_ADVANCE(regs) ((regs)->ddb_tf.tf_r15 += 4)
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#define BKPT_INST (0xe7ffffff) /* breakpoint instruction */
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#define BKPT_SIZE (INSN_SIZE) /* size of breakpoint inst */
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#define BKPT_SET(inst) (BKPT_INST)
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/*#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->ddb_tf.tf_pc -= BKPT_SIZE)*/
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#define T_BREAKPOINT (1)
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#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT)
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#define IS_WATCHPOINT_TRAP(type, code) (0)
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#define inst_trap_return(ins) ((ins)&0)
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#define inst_return(ins) ((ins)&0)
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#define inst_call(ins) (((ins) & 0x0f000000) == 0x0b000000)
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#define inst_branch(ins) (((ins) & 0x0f000000) == 0x0a000000)
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#define inst_load(ins) 0
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#define inst_store(ins) 0
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#define inst_unconditional_flow_transfer(ins) (((ins) & 0xf0000000) == 0xe0000000)
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#define getreg_val (0)
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#define next_instr_address(pc, bd) (pc + INSN_SIZE)
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#define DB_MACHINE_COMMANDS
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#define SOFTWARE_SSTEP
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u_int branch_taken __P((u_int insn, u_int pc, db_regs_t *db_regs));
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/*
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* We use ELF symbols in DDB.
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*/
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#define DB_ELF_SYMBOLS
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#define DB_ELFSIZE 32
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#endif /* _ARM26_DB_MACHDEP_H_ */
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