1*42cc9952Sjasper /* $OpenBSD: db_machdep.h,v 1.6 2021/08/30 08:11:12 jasper Exp $*/ 26fbfd68bSgkoehler /* $NetBSD: db_machdep.h,v 1.13 1996/04/29 20:50:08 leo Exp $ */ 313861200Skettenis 46fbfd68bSgkoehler /* 56fbfd68bSgkoehler * Mach Operating System 66fbfd68bSgkoehler * Copyright (c) 1992 Carnegie Mellon University 76fbfd68bSgkoehler * All Rights Reserved. 86fbfd68bSgkoehler * 96fbfd68bSgkoehler * Permission to use, copy, modify and distribute this software and its 106fbfd68bSgkoehler * documentation is hereby granted, provided that both the copyright 116fbfd68bSgkoehler * notice and this permission notice appear in all copies of the 126fbfd68bSgkoehler * software, derivative works or modified versions, and any portions 136fbfd68bSgkoehler * thereof, and that both notices appear in supporting documentation. 146fbfd68bSgkoehler * 156fbfd68bSgkoehler * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 166fbfd68bSgkoehler * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 176fbfd68bSgkoehler * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 186fbfd68bSgkoehler * 196fbfd68bSgkoehler * Carnegie Mellon requests users of this software to return to 206fbfd68bSgkoehler * 216fbfd68bSgkoehler * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 226fbfd68bSgkoehler * School of Computer Science 236fbfd68bSgkoehler * Carnegie Mellon University 246fbfd68bSgkoehler * Pittsburgh PA 15213-3890 256fbfd68bSgkoehler * 266fbfd68bSgkoehler * any improvements or extensions that they make and grant Carnegie Mellon 276fbfd68bSgkoehler * the rights to redistribute these changes. 286fbfd68bSgkoehler */ 2913861200Skettenis 306fbfd68bSgkoehler /* 316fbfd68bSgkoehler * Machine-dependent defines for new kernel debugger. 326fbfd68bSgkoehler */ 336fbfd68bSgkoehler #ifndef _MACHINE_DB_MACHDEP_H_ 346fbfd68bSgkoehler #define _MACHINE_DB_MACHDEP_H_ 3513861200Skettenis 366fbfd68bSgkoehler #include <sys/types.h> 376fbfd68bSgkoehler #include <uvm/uvm_param.h> 38fe9bb682Sgkoehler #include <machine/psl.h> 396fbfd68bSgkoehler #include <machine/trap.h> 4013861200Skettenis 416fbfd68bSgkoehler typedef long db_expr_t; /* expression - signed */ 426fbfd68bSgkoehler typedef struct trapframe db_regs_t; 436fbfd68bSgkoehler extern db_regs_t ddb_regs; /* register state */ 4413861200Skettenis 456fbfd68bSgkoehler #define PC_REGS(regs) ((regs)->srr0) 466fbfd68bSgkoehler #define SET_PC_REGS(regs, value) PC_REGS(regs) = (value) 4706db26f9Sgkoehler 486fbfd68bSgkoehler #define BKPT_INST 0x7C810808 /* breakpoint instruction */ 4906db26f9Sgkoehler 506fbfd68bSgkoehler #define BKPT_SIZE (4) /* size of breakpoint inst */ 516fbfd68bSgkoehler #define BKPT_SET(inst) (BKPT_INST) 5213861200Skettenis 53fe9bb682Sgkoehler #define db_clear_single_step(regs) ((regs)->srr1 &= ~PSL_SE) 54fe9bb682Sgkoehler #define db_set_single_step(regs) ((regs)->srr1 |= PSL_SE) 556fbfd68bSgkoehler 566fbfd68bSgkoehler #define T_BREAKPOINT 0xffff 576fbfd68bSgkoehler #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT) 586fbfd68bSgkoehler #define IS_WATCHPOINT_TRAP(type, code) 0 596fbfd68bSgkoehler 606fbfd68bSgkoehler #define M_RTS 0xfc0007fe 616fbfd68bSgkoehler #define I_RTS 0x4c000020 626fbfd68bSgkoehler #define M_BC 0xfc000000 636fbfd68bSgkoehler #define I_BC 0x40000000 646fbfd68bSgkoehler #define M_B 0xfc000000 656fbfd68bSgkoehler #define I_B 0x50000000 666fbfd68bSgkoehler #define M_RFI 0xfc0007fe 676fbfd68bSgkoehler #define I_RFI 0x4c000064 686fbfd68bSgkoehler 696fbfd68bSgkoehler #define inst_trap_return(ins) (((ins)&M_RFI) == I_RFI) 706fbfd68bSgkoehler #define inst_return(ins) (((ins)&M_RTS) == I_RTS) 716fbfd68bSgkoehler #define inst_call(ins) (((ins)&M_BC ) == I_BC || \ 726fbfd68bSgkoehler ((ins)&M_B ) == I_B ) 736fbfd68bSgkoehler 746fbfd68bSgkoehler struct trapframe; 756fbfd68bSgkoehler void db_ktrap(int, db_regs_t *); 766fbfd68bSgkoehler 77284a504dSkettenis #define DDB_STATE_NOT_RUNNING 0 78284a504dSkettenis #define DDB_STATE_RUNNING 1 79284a504dSkettenis #define DDB_STATE_EXITING 2 80284a504dSkettenis 81284a504dSkettenis /* 82284a504dSkettenis * We define some of our own commands 83284a504dSkettenis */ 84284a504dSkettenis #define DB_MACHINE_COMMANDS 85284a504dSkettenis 866fbfd68bSgkoehler #endif /* _MACHINE_DB_MACHDEP_H_ */ 87