/* $NetBSD: db_machdep.h,v 1.2 2006/08/30 11:12:04 cherry Exp $ */ | |
/* | |
* Copyright (c) 1995 Carnegie-Mellon University. | |
* All rights reserved. | |
* | |
* Author: Chris G. Demetriou | |
* | |
* 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 the | |
* rights to redistribute these changes. | |
*/ | |
#ifndef _IA64_DB_MACHDEP_H_ | |
#define _IA64_DB_MACHDEP_H_ | |
/* | |
* Machine-dependent defines for new kernel debugger. | |
*/ | |
#include <sys/lock.h> | |
#include <sys/param.h> | |
#include <uvm/uvm_extern.h> | |
#include <machine/frame.h> | |
#include <machine/ia64_cpu.h> | |
typedef vaddr_t db_addr_t; /* address - unsigned */ | |
typedef long db_expr_t; /* expression - signed */ | |
typedef struct trapframe db_regs_t; | |
extern db_regs_t *ddb_regp; /* pointer to current register state */ | |
#define DDB_REGS (ddb_regp) | |
#if 0 /* XXX: disabling this until we switch on makectx()and have a proper \ | |
curlwp(). TODO: please switch this back on ASAP */ | |
#define PC_REGS(regs) ((db_addr_t)(regs)->tf_special.__spare == 0) ? \ | |
((db_addr_t)(regs)->tf_special.rp) : \ | |
((db_addr_t)(regs)->tf_special.iip + (((regs)->tf_special.psr>>41) & 3)) | |
#endif | |
#if 1 | |
#define PC_REGS(regs) ((db_addr_t)(regs)->tf_special.iip + (((regs)->tf_special.psr>>41) & 3)) | |
#endif | |
#define db_set_single_step(regs) ((regs)->tf_special.psr |= IA64_PSR_SS) | |
#define db_clear_single_step(regs) ((regs)->tf_special.psr &= ~IA64_PSR_SS) | |
/* defines to help with manipulating ia64 VLIW instruction bundles and slots */ | |
#define TMPL_BITS 5 | |
#define TMPL_MASK ((1 << TMPL_BITS) - 1) | |
#define SLOT_BITS 41 | |
#define SLOT_COUNT 3 | |
#define SLOT_MASK ((1ULL << SLOT_BITS) - 1ULL) | |
#define SLOT_SHIFT(i) (TMPL_BITS+((i)<<3)+(i)) | |
#define ADDR_SLOT0(addr) ( (addr) & ~(0xFUL) ) | |
#define SLOT_ADDR(addr) ( (addr) & (0xFUL) ) | |
/* breakpoint address. | |
* Check for violations of pseudo offsets above 2. | |
* Adjust for 32 bit shift within Bundle. | |
*/ | |
#define BKPT_ADDR(addr) ( (SLOT_ADDR(addr) < SLOT_COUNT) ? \ | |
(ADDR_SLOT0(addr) | (SLOT_ADDR(addr) << 2)) \ | |
: ADDR_SLOT0(addr) ) | |
#define BKPT_SIZE 8 | |
#define BKPT_SET(inst, addr) db_bkpt_set(inst, addr) | |
db_expr_t db_bkpt_set(db_expr_t inst, db_addr_t addr); | |
#define PC_ADVANCE(regs) db_pc_advance(regs) | |
void db_pc_advance(db_regs_t *); | |
#define IS_BREAKPOINT_TRAP(type, code) (type == IA64_VEC_BREAK) | |
#define IS_WATCHPOINT_TRAP(type, code) 0 | |
#define inst_trap_return(ins) (ins & 0) | |
#define inst_return(ins) (ins & 0) | |
#define inst_call(ins) (ins & 0) | |
#define inst_branch(ins) (ins & 0) | |
#define inst_load(ins) (ins & 0) | |
#define inst_store(ins) (ins & 0) | |
#define inst_unconditional_flow_transfer(ins) (ins & 0) | |
#define branch_taken(ins, pc, regs) pc | |
u_long db_register_value(db_regs_t *, int); | |
int ddb_trap(unsigned long, unsigned long, unsigned long, | |
unsigned long, struct trapframe *); | |
int ia64_trap(int, int, db_regs_t *); /* See: trap.c */ | |
/* | |
* We define some of our own commands. | |
*/ | |
#define DB_MACHINE_COMMANDS | |
/* | |
* We use Elf64 symbols in DDB. | |
*/ | |
#define DB_ELF_SYMBOLS | |
#define DB_ELFSIZE 64 | |
/* | |
* Stuff for KGDB. | |
*/ | |
typedef long kgdb_reg_t; | |
#define KGDB_NUMREGS 66 /* from tm-alpha.h, NUM_REGS */ | |
#define KGDB_REG_V0 0 | |
#define KGDB_REG_T0 1 | |
#define KGDB_REG_T1 2 | |
#define KGDB_REG_T2 3 | |
#define KGDB_REG_T3 4 | |
#define KGDB_REG_T4 5 | |
#define KGDB_REG_T5 6 | |
#define KGDB_REG_T6 7 | |
#define KGDB_REG_T7 8 | |
#define KGDB_REG_S0 9 | |
#define KGDB_REG_S1 10 | |
#define KGDB_REG_S2 11 | |
#define KGDB_REG_S3 12 | |
#define KGDB_REG_S4 13 | |
#define KGDB_REG_S5 14 | |
#define KGDB_REG_S6 15 /* FP */ | |
#define KGDB_REG_A0 16 | |
#define KGDB_REG_A1 17 | |
#define KGDB_REG_A2 18 | |
#define KGDB_REG_A3 19 | |
#define KGDB_REG_A4 20 | |
#define KGDB_REG_A5 21 | |
#define KGDB_REG_T8 22 | |
#define KGDB_REG_T9 23 | |
#define KGDB_REG_T10 24 | |
#define KGDB_REG_T11 25 | |
#define KGDB_REG_RA 26 | |
#define KGDB_REG_T12 27 | |
#define KGDB_REG_AT 28 | |
#define KGDB_REG_GP 29 | |
#define KGDB_REG_SP 30 | |
#define KGDB_REG_ZERO 31 | |
#define KGDB_REG_F0 32 | |
#define KGDB_REG_F1 33 | |
#define KGDB_REG_F2 34 | |
#define KGDB_REG_F3 35 | |
#define KGDB_REG_F4 36 | |
#define KGDB_REG_F5 37 | |
#define KGDB_REG_F6 38 | |
#define KGDB_REG_F7 39 | |
#define KGDB_REG_F8 40 | |
#define KGDB_REG_F9 41 | |
#define KGDB_REG_F10 42 | |
#define KGDB_REG_F11 43 | |
#define KGDB_REG_F12 44 | |
#define KGDB_REG_F13 45 | |
#define KGDB_REG_F14 46 | |
#define KGDB_REG_F15 47 | |
#define KGDB_REG_F16 48 | |
#define KGDB_REG_F17 49 | |
#define KGDB_REG_F18 50 | |
#define KGDB_REG_F19 51 | |
#define KGDB_REG_F20 52 | |
#define KGDB_REG_F21 53 | |
#define KGDB_REG_F22 54 | |
#define KGDB_REG_F23 55 | |
#define KGDB_REG_F24 56 | |
#define KGDB_REG_F25 57 | |
#define KGDB_REG_F26 58 | |
#define KGDB_REG_F27 59 | |
#define KGDB_REG_F28 60 | |
#define KGDB_REG_F29 61 | |
#define KGDB_REG_F30 62 | |
#define KGDB_REG_F31 63 | |
#define KGDB_REG_PC 64 | |
#define KGDB_REG_VFP 65 | |
/* Too much? Must be large enough for register transfer. */ | |
#define KGDB_BUFLEN 1024 | |
#endif /* _IA64_DB_MACHDEP_H_ */ |