1 /* $NetBSD: db_machdep.h,v 1.9 1997/06/26 01:27:00 thorpej Exp $ */ 2 3 /* 4 * Mach Operating System 5 * Copyright (c) 1991,1990 Carnegie Mellon University 6 * All Rights Reserved. 7 * 8 * Permission to use, copy, modify and distribute this software and its 9 * documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 16 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie Mellon 26 * the rights to redistribute these changes. 27 */ 28 29 #ifndef _SPARC_DB_MACHDEP_H_ 30 #define _SPARC_DB_MACHDEP_H_ 31 32 /* 33 * Machine-dependent defines for new kernel debugger. 34 */ 35 36 37 #include <vm/vm.h> 38 #include <machine/frame.h> 39 #include <machine/psl.h> 40 #include <machine/trap.h> 41 #include <machine/reg.h> 42 43 /* end of mangling */ 44 45 typedef vm_offset_t db_addr_t; /* address - unsigned */ 46 typedef long db_expr_t; /* expression - signed */ 47 48 typedef struct { 49 struct trapframe ddb_tf; 50 struct frame ddb_fr; 51 } db_regs_t; 52 53 db_regs_t ddb_regs; /* register state */ 54 #define DDB_REGS (&ddb_regs) 55 #define DDB_TF (&ddb_regs.ddb_tf) 56 #define DDB_FR (&ddb_regs.ddb_fr) 57 58 #if defined(lint) 59 #define PC_REGS(regs) ((regs)->ddb_tf.tf_pc) 60 #else 61 #define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_pc) 62 #endif 63 64 #define BKPT_INST 0x91d02001 /* breakpoint instruction */ 65 #define BKPT_SIZE (4) /* size of breakpoint inst */ 66 #define BKPT_SET(inst) (BKPT_INST) 67 68 #define db_clear_single_step(regs) (void) (0) 69 #define db_set_single_step(regs) (void) (0) 70 71 #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT) 72 #define IS_WATCHPOINT_TRAP(type, code) (0) 73 74 #define inst_trap_return(ins) ((ins)&0) 75 #define inst_return(ins) ((ins)&0) 76 #define inst_call(ins) ((ins)&0) 77 #define inst_load(ins) 0 78 #define inst_store(ins) 0 79 80 #define DB_MACHINE_COMMANDS 81 82 void db_machine_init __P((void)); 83 int kdb_trap __P((int, struct trapframe *)); 84 85 /* 86 * We use a.out symbols in DDB. 87 */ 88 #define DB_AOUT_SYMBOLS 89 90 #endif /* _SPARC_DB_MACHDEP_H_ */ 91