1/* $NetBSD: db_machdep.h,v 1.2 2006/08/30 11:12:04 cherry Exp $ */ 2 3/* 4 * Copyright (c) 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30#ifndef _IA64_DB_MACHDEP_H_ 31#define _IA64_DB_MACHDEP_H_ 32 33/* 34 * Machine-dependent defines for new kernel debugger. 35 */ 36 37#include <sys/lock.h> 38#include <sys/param.h> 39#include <uvm/uvm_extern.h> 40#include <machine/frame.h> 41#include <machine/ia64_cpu.h> 42 43typedef vaddr_t db_addr_t; /* address - unsigned */ 44#define DDB_EXPR_FMT "l" /* expression is long */ 45typedef long db_expr_t; /* expression - signed */ 46 47typedef struct trapframe db_regs_t; 48extern db_regs_t *ddb_regp; /* pointer to current register state */ 49#define DDB_REGS (ddb_regp) 50 51#if 0 /* XXX: disabling this until we switch on makectx()and have a proper \ 52 curlwp(). TODO: please switch this back on ASAP */ 53 54#define PC_REGS(regs) ((db_addr_t)(regs)->tf_special.__spare == 0) ? \ 55 ((db_addr_t)(regs)->tf_special.rp) : \ 56 ((db_addr_t)(regs)->tf_special.iip + (((regs)->tf_special.psr>>41) & 3)) 57#endif 58 59#if 1 60#define PC_REGS(regs) ((db_addr_t)(regs)->tf_special.iip + (((regs)->tf_special.psr>>41) & 3)) 61#endif 62 63#define db_set_single_step(regs) ((regs)->tf_special.psr |= IA64_PSR_SS) 64#define db_clear_single_step(regs) ((regs)->tf_special.psr &= ~IA64_PSR_SS) 65 66 67 68/* defines to help with manipulating ia64 VLIW instruction bundles and slots */ 69 70#define TMPL_BITS 5 71#define TMPL_MASK ((1 << TMPL_BITS) - 1) 72#define SLOT_BITS 41 73#define SLOT_COUNT 3 74#define SLOT_MASK ((1ULL << SLOT_BITS) - 1ULL) 75#define SLOT_SHIFT(i) (TMPL_BITS+((i)<<3)+(i)) 76 77#define ADDR_SLOT0(addr) ( (addr) & ~(0xFUL) ) 78#define SLOT_ADDR(addr) ( (addr) & (0xFUL) ) 79/* breakpoint address. 80 * Check for violations of pseudo offsets above 2. 81 * Adjust for 32 bit shift within Bundle. 82 */ 83 84#define BKPT_ADDR(addr) ( (SLOT_ADDR(addr) < SLOT_COUNT) ? \ 85 (ADDR_SLOT0(addr) | (SLOT_ADDR(addr) << 2)) \ 86 : ADDR_SLOT0(addr) ) 87 88#define BKPT_SIZE 8 89 90#define BKPT_SET(inst, addr) db_bkpt_set(inst, addr) 91db_expr_t db_bkpt_set(db_expr_t inst, db_addr_t addr); 92 93 94#define PC_ADVANCE(regs) db_pc_advance(regs) 95void db_pc_advance(db_regs_t *); 96 97#define IS_BREAKPOINT_TRAP(type, code) (type == IA64_VEC_BREAK) 98#define IS_WATCHPOINT_TRAP(type, code) 0 99 100 101#define inst_trap_return(ins) (ins & 0) 102#define inst_return(ins) (ins & 0) 103#define inst_call(ins) (ins & 0) 104#define inst_branch(ins) (ins & 0) 105#define inst_load(ins) (ins & 0) 106#define inst_store(ins) (ins & 0) 107#define inst_unconditional_flow_transfer(ins) (ins & 0) 108 109#define branch_taken(ins, pc, regs) pc 110 111u_long db_register_value(db_regs_t *, int); 112int ddb_trap(unsigned long, unsigned long, unsigned long, 113 unsigned long, struct trapframe *); 114 115int ia64_trap(int, int, db_regs_t *); /* See: trap.c */ 116 117/* 118 * We define some of our own commands. 119 */ 120#define DB_MACHINE_COMMANDS 121 122/* 123 * We use Elf64 symbols in DDB. 124 */ 125#define DB_ELF_SYMBOLS 126#define DB_ELFSIZE 64 127 128/* 129 * Stuff for KGDB. 130 */ 131typedef long kgdb_reg_t; 132#define KGDB_NUMREGS 66 /* from tm-alpha.h, NUM_REGS */ 133#define KGDB_REG_V0 0 134#define KGDB_REG_T0 1 135#define KGDB_REG_T1 2 136#define KGDB_REG_T2 3 137#define KGDB_REG_T3 4 138#define KGDB_REG_T4 5 139#define KGDB_REG_T5 6 140#define KGDB_REG_T6 7 141#define KGDB_REG_T7 8 142#define KGDB_REG_S0 9 143#define KGDB_REG_S1 10 144#define KGDB_REG_S2 11 145#define KGDB_REG_S3 12 146#define KGDB_REG_S4 13 147#define KGDB_REG_S5 14 148#define KGDB_REG_S6 15 /* FP */ 149#define KGDB_REG_A0 16 150#define KGDB_REG_A1 17 151#define KGDB_REG_A2 18 152#define KGDB_REG_A3 19 153#define KGDB_REG_A4 20 154#define KGDB_REG_A5 21 155#define KGDB_REG_T8 22 156#define KGDB_REG_T9 23 157#define KGDB_REG_T10 24 158#define KGDB_REG_T11 25 159#define KGDB_REG_RA 26 160#define KGDB_REG_T12 27 161#define KGDB_REG_AT 28 162#define KGDB_REG_GP 29 163#define KGDB_REG_SP 30 164#define KGDB_REG_ZERO 31 165#define KGDB_REG_F0 32 166#define KGDB_REG_F1 33 167#define KGDB_REG_F2 34 168#define KGDB_REG_F3 35 169#define KGDB_REG_F4 36 170#define KGDB_REG_F5 37 171#define KGDB_REG_F6 38 172#define KGDB_REG_F7 39 173#define KGDB_REG_F8 40 174#define KGDB_REG_F9 41 175#define KGDB_REG_F10 42 176#define KGDB_REG_F11 43 177#define KGDB_REG_F12 44 178#define KGDB_REG_F13 45 179#define KGDB_REG_F14 46 180#define KGDB_REG_F15 47 181#define KGDB_REG_F16 48 182#define KGDB_REG_F17 49 183#define KGDB_REG_F18 50 184#define KGDB_REG_F19 51 185#define KGDB_REG_F20 52 186#define KGDB_REG_F21 53 187#define KGDB_REG_F22 54 188#define KGDB_REG_F23 55 189#define KGDB_REG_F24 56 190#define KGDB_REG_F25 57 191#define KGDB_REG_F26 58 192#define KGDB_REG_F27 59 193#define KGDB_REG_F28 60 194#define KGDB_REG_F29 61 195#define KGDB_REG_F30 62 196#define KGDB_REG_F31 63 197#define KGDB_REG_PC 64 198#define KGDB_REG_VFP 65 199 200/* Too much? Must be large enough for register transfer. */ 201#define KGDB_BUFLEN 1024 202 203#endif /* _IA64_DB_MACHDEP_H_ */ 204