/* $NetBSD: db_machdep.h,v 1.20 2017/11/06 03:47:48 christos 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 _VAX_DB_MACHDEP_H_ #define _VAX_DB_MACHDEP_H_ /* * Machine-dependent defines for new kernel debugger. * Modified for vax out of i386 code. */ #include <sys/param.h> #include <uvm/uvm.h> #include <machine/trap.h> #include <machine/psl.h> typedef vaddr_t db_addr_t; /* address - unsigned */ #define DDB_EXPR_FMT "l" /* expression is long */ typedef long db_expr_t; /* expression - signed */ typedef struct trapframe db_regs_t; extern db_regs_t ddb_regs; /* register state */ #define DDB_REGS (&ddb_regs) #define PC_REGS(regs) (*(db_addr_t *)&(regs)->tf_pc) #define BKPT_ADDR(addr) (addr) /* breakpoint address */ #define BKPT_INST 0x03 /* breakpoint instruction */ #define BKPT_SIZE (1) /* size of breakpoint inst */ #define BKPT_SET(inst, addr) (BKPT_INST) #define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_pc -= BKPT_SIZE) #define db_clear_single_step(regs) ((regs)->tf_psl &= ~PSL_T) #define db_set_single_step(regs) ((regs)->tf_psl |= PSL_T) #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BPTFLT) #define IS_WATCHPOINT_TRAP(type, code) ((type) == T_TRCTRAP) #define I_CALL 0xfb #define I_RET 0x04 #define I_IRET 0x02 #define inst_trap_return(ins) (((ins)&0xff) == I_IRET) #define inst_return(ins) (((ins)&0xff) == I_RET) #define inst_call(ins) (((ins)&0xff) == I_CALL) #define inst_load(ins) 0 #define inst_store(ins) 0 #define DB_MACHINE_COMMANDS /* Prototypes */ void kdb_trap(struct trapframe *); /* * We use a.out symbols in DDB (unless we are ELF then we use ELF symbols). */ #define DB_ELF_SYMBOLS #endif /* _VAX_DB_MACHDEP_H_ */ |