StdLib/Include/Ipf/machine/db_machdep.h

   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
  43 typedef vaddr_t         db_addr_t;      /* address - unsigned */
  44 typedef long            db_expr_t;      /* expression - signed */
  45
  46 typedef struct trapframe db_regs_t;
  47 extern db_regs_t        *ddb_regp;      /* pointer to current register state */
  48 #define DDB_REGS        (ddb_regp)
  49
  50 #if 0   /* XXX: disabling this until we switch on makectx()and have a proper \
  51            curlwp(). TODO: please switch this back on ASAP */
  52
  53 #define PC_REGS(regs)   ((db_addr_t)(regs)->tf_special.__spare == 0) ?  \
  54                         ((db_addr_t)(regs)->tf_special.rp) :            \
  55                         ((db_addr_t)(regs)->tf_special.iip + (((regs)->tf_special.psr>>41) & 3))
  56 #endif
  57
  58 #if 1
  59 #define PC_REGS(regs)   ((db_addr_t)(regs)->tf_special.iip + (((regs)->tf_special.psr>>41) & 3))
  60 #endif
  61
  62 #define db_set_single_step(regs)        ((regs)->tf_special.psr |= IA64_PSR_SS)
  63 #define db_clear_single_step(regs)      ((regs)->tf_special.psr &= ~IA64_PSR_SS)
  64
  65
  66
  67 /* defines to help with manipulating ia64 VLIW instruction bundles and slots */
  68
  69 #define TMPL_BITS       5
  70 #define TMPL_MASK       ((1 << TMPL_BITS) - 1)
  71 #define SLOT_BITS       41
  72 #define SLOT_COUNT      3
  73 #define SLOT_MASK       ((1ULL << SLOT_BITS) - 1ULL)
  74 #define SLOT_SHIFT(i)   (TMPL_BITS+((i)<<3)+(i))
  75
  76 #define ADDR_SLOT0(addr)        ( (addr) & ~(0xFUL) )
  77 #define SLOT_ADDR(addr)         ( (addr) & (0xFUL) )
  78 /* breakpoint address.
  79  * Check for violations of pseudo offsets above 2.
  80  * Adjust for 32 bit shift within Bundle.
  81  */
  82
  83 #define BKPT_ADDR(addr) ( (SLOT_ADDR(addr) < SLOT_COUNT) ? \
  84                           (ADDR_SLOT0(addr) | (SLOT_ADDR(addr) << 2))   \
  85                           : ADDR_SLOT0(addr) )
  86
  87 #define BKPT_SIZE       8
  88
  89 #define BKPT_SET(inst, addr)    db_bkpt_set(inst, addr)
  90 db_expr_t db_bkpt_set(db_expr_t inst, db_addr_t addr);
  91
  92
  93 #define PC_ADVANCE(regs) db_pc_advance(regs)
  94 void db_pc_advance(db_regs_t *);
  95
  96 #define IS_BREAKPOINT_TRAP(type, code)  (type == IA64_VEC_BREAK)
  97 #define IS_WATCHPOINT_TRAP(type, code)  0
  98
  99
 100 #define inst_trap_return(ins)   (ins & 0)
 101 #define inst_return(ins)        (ins & 0)
 102 #define inst_call(ins)          (ins & 0)
 103 #define inst_branch(ins)        (ins & 0)
 104 #define inst_load(ins)          (ins & 0)
 105 #define inst_store(ins)         (ins & 0)
 106 #define inst_unconditional_flow_transfer(ins) (ins & 0)
 107
 108 #define branch_taken(ins, pc, regs) pc
 109
 110 u_long  db_register_value(db_regs_t *, int);
 111 int     ddb_trap(unsigned long, unsigned long, unsigned long,
 112             unsigned long, struct trapframe *);
 113
 114 int ia64_trap(int, int, db_regs_t *); /* See: trap.c */
 115
 116 /*
 117  * We define some of our own commands.
 118  */
 119 #define DB_MACHINE_COMMANDS
 120
 121 /*
 122  * We use Elf64 symbols in DDB.
 123  */
 124 #define DB_ELF_SYMBOLS
 125 #define DB_ELFSIZE      64
 126
 127 /*
 128  * Stuff for KGDB.
 129  */
 130 typedef long            kgdb_reg_t;
 131 #define KGDB_NUMREGS    66      /* from tm-alpha.h, NUM_REGS */
 132 #define KGDB_REG_V0     0
 133 #define KGDB_REG_T0     1
 134 #define KGDB_REG_T1     2
 135 #define KGDB_REG_T2     3
 136 #define KGDB_REG_T3     4
 137 #define KGDB_REG_T4     5
 138 #define KGDB_REG_T5     6
 139 #define KGDB_REG_T6     7
 140 #define KGDB_REG_T7     8
 141 #define KGDB_REG_S0     9
 142 #define KGDB_REG_S1     10
 143 #define KGDB_REG_S2     11
 144 #define KGDB_REG_S3     12
 145 #define KGDB_REG_S4     13
 146 #define KGDB_REG_S5     14
 147 #define KGDB_REG_S6     15      /* FP */
 148 #define KGDB_REG_A0     16
 149 #define KGDB_REG_A1     17
 150 #define KGDB_REG_A2     18
 151 #define KGDB_REG_A3     19
 152 #define KGDB_REG_A4     20
 153 #define KGDB_REG_A5     21
 154 #define KGDB_REG_T8     22
 155 #define KGDB_REG_T9     23
 156 #define KGDB_REG_T10    24
 157 #define KGDB_REG_T11    25
 158 #define KGDB_REG_RA     26
 159 #define KGDB_REG_T12    27
 160 #define KGDB_REG_AT     28
 161 #define KGDB_REG_GP     29
 162 #define KGDB_REG_SP     30
 163 #define KGDB_REG_ZERO   31
 164 #define KGDB_REG_F0     32
 165 #define KGDB_REG_F1     33
 166 #define KGDB_REG_F2     34
 167 #define KGDB_REG_F3     35
 168 #define KGDB_REG_F4     36
 169 #define KGDB_REG_F5     37
 170 #define KGDB_REG_F6     38
 171 #define KGDB_REG_F7     39
 172 #define KGDB_REG_F8     40
 173 #define KGDB_REG_F9     41
 174 #define KGDB_REG_F10    42
 175 #define KGDB_REG_F11    43
 176 #define KGDB_REG_F12    44
 177 #define KGDB_REG_F13    45
 178 #define KGDB_REG_F14    46
 179 #define KGDB_REG_F15    47
 180 #define KGDB_REG_F16    48
 181 #define KGDB_REG_F17    49
 182 #define KGDB_REG_F18    50
 183 #define KGDB_REG_F19    51
 184 #define KGDB_REG_F20    52
 185 #define KGDB_REG_F21    53
 186 #define KGDB_REG_F22    54
 187 #define KGDB_REG_F23    55
 188 #define KGDB_REG_F24    56
 189 #define KGDB_REG_F25    57
 190 #define KGDB_REG_F26    58
 191 #define KGDB_REG_F27    59
 192 #define KGDB_REG_F28    60
 193 #define KGDB_REG_F29    61
 194 #define KGDB_REG_F30    62
 195 #define KGDB_REG_F31    63
 196 #define KGDB_REG_PC     64
 197 #define KGDB_REG_VFP    65
 198
 199 /* Too much?  Must be large enough for register transfer. */
 200 #define KGDB_BUFLEN     1024
 201
 202 #endif  /* _IA64_DB_MACHDEP_H_ */