gdb/gdbserver/linux-ia64-low.c

   1 /* GNU/Linux/IA64 specific low level interface, for the remote server for GDB.
   2    Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20    Boston, MA 02110-1301, USA.  */
  21
  22 #include "server.h"
  23 #include "linux-low.h"
  24
  25 #ifdef HAVE_SYS_REG_H
  26 #include <sys/reg.h>
  27 #endif
  28
  29 #define ia64_num_regs 462
  30
  31 #include <asm/ptrace_offsets.h>
  32
  33 static int ia64_regmap[] =
  34   {
  35     /* general registers */
  36     -1,         /* gr0 not available; i.e, it's always zero */
  37     PT_R1,
  38     PT_R2,
  39     PT_R3,
  40     PT_R4,
  41     PT_R5,
  42     PT_R6,
  43     PT_R7,
  44     PT_R8,
  45     PT_R9,
  46     PT_R10,
  47     PT_R11,
  48     PT_R12,
  49     PT_R13,
  50     PT_R14,
  51     PT_R15,
  52     PT_R16,
  53     PT_R17,
  54     PT_R18,
  55     PT_R19,
  56     PT_R20,
  57     PT_R21,
  58     PT_R22,
  59     PT_R23,
  60     PT_R24,
  61     PT_R25,
  62     PT_R26,
  63     PT_R27,
  64     PT_R28,
  65     PT_R29,
  66     PT_R30,
  67     PT_R31,
  68     /* gr32 through gr127 not directly available via the ptrace interface */
  69     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  70     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  71     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  72     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  73     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  74     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  75     /* Floating point registers */
  76     -1, -1,     /* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */
  77     PT_F2,
  78     PT_F3,
  79     PT_F4,
  80     PT_F5,
  81     PT_F6,
  82     PT_F7,
  83     PT_F8,
  84     PT_F9,
  85     PT_F10,
  86     PT_F11,
  87     PT_F12,
  88     PT_F13,
  89     PT_F14,
  90     PT_F15,
  91     PT_F16,
  92     PT_F17,
  93     PT_F18,
  94     PT_F19,
  95     PT_F20,
  96     PT_F21,
  97     PT_F22,
  98     PT_F23,
  99     PT_F24,
 100     PT_F25,
 101     PT_F26,
 102     PT_F27,
 103     PT_F28,
 104     PT_F29,
 105     PT_F30,
 106     PT_F31,
 107     PT_F32,
 108     PT_F33,
 109     PT_F34,
 110     PT_F35,
 111     PT_F36,
 112     PT_F37,
 113     PT_F38,
 114     PT_F39,
 115     PT_F40,
 116     PT_F41,
 117     PT_F42,
 118     PT_F43,
 119     PT_F44,
 120     PT_F45,
 121     PT_F46,
 122     PT_F47,
 123     PT_F48,
 124     PT_F49,
 125     PT_F50,
 126     PT_F51,
 127     PT_F52,
 128     PT_F53,
 129     PT_F54,
 130     PT_F55,
 131     PT_F56,
 132     PT_F57,
 133     PT_F58,
 134     PT_F59,
 135     PT_F60,
 136     PT_F61,
 137     PT_F62,
 138     PT_F63,
 139     PT_F64,
 140     PT_F65,
 141     PT_F66,
 142     PT_F67,
 143     PT_F68,
 144     PT_F69,
 145     PT_F70,
 146     PT_F71,
 147     PT_F72,
 148     PT_F73,
 149     PT_F74,
 150     PT_F75,
 151     PT_F76,
 152     PT_F77,
 153     PT_F78,
 154     PT_F79,
 155     PT_F80,
 156     PT_F81,
 157     PT_F82,
 158     PT_F83,
 159     PT_F84,
 160     PT_F85,
 161     PT_F86,
 162     PT_F87,
 163     PT_F88,
 164     PT_F89,
 165     PT_F90,
 166     PT_F91,
 167     PT_F92,
 168     PT_F93,
 169     PT_F94,
 170     PT_F95,
 171     PT_F96,
 172     PT_F97,
 173     PT_F98,
 174     PT_F99,
 175     PT_F100,
 176     PT_F101,
 177     PT_F102,
 178     PT_F103,
 179     PT_F104,
 180     PT_F105,
 181     PT_F106,
 182     PT_F107,
 183     PT_F108,
 184     PT_F109,
 185     PT_F110,
 186     PT_F111,
 187     PT_F112,
 188     PT_F113,
 189     PT_F114,
 190     PT_F115,
 191     PT_F116,
 192     PT_F117,
 193     PT_F118,
 194     PT_F119,
 195     PT_F120,
 196     PT_F121,
 197     PT_F122,
 198     PT_F123,
 199     PT_F124,
 200     PT_F125,
 201     PT_F126,
 202     PT_F127,
 203     /* predicate registers - we don't fetch these individually */
 204     -1, -1, -1, -1, -1, -1, -1, -1,
 205     -1, -1, -1, -1, -1, -1, -1, -1,
 206     -1, -1, -1, -1, -1, -1, -1, -1,
 207     -1, -1, -1, -1, -1, -1, -1, -1,
 208     -1, -1, -1, -1, -1, -1, -1, -1,
 209     -1, -1, -1, -1, -1, -1, -1, -1,
 210     -1, -1, -1, -1, -1, -1, -1, -1,
 211     -1, -1, -1, -1, -1, -1, -1, -1,
 212     /* branch registers */
 213     PT_B0,
 214     PT_B1,
 215     PT_B2,
 216     PT_B3,
 217     PT_B4,
 218     PT_B5,
 219     PT_B6,
 220     PT_B7,
 221     /* virtual frame pointer and virtual return address pointer */
 222     -1, -1,
 223     /* other registers */
 224     PT_PR,
 225     PT_CR_IIP,  /* ip */
 226     PT_CR_IPSR, /* psr */
 227     PT_CFM,     /* cfm */
 228     /* kernel registers not visible via ptrace interface (?) */
 229     -1, -1, -1, -1, -1, -1, -1, -1,
 230     /* hole */
 231     -1, -1, -1, -1, -1, -1, -1, -1,
 232     PT_AR_RSC,
 233     PT_AR_BSP,
 234     PT_AR_BSPSTORE,
 235     PT_AR_RNAT,
 236     -1,
 237     -1,         /* Not available: FCR, IA32 floating control register */
 238     -1, -1,
 239     -1,         /* Not available: EFLAG */
 240     -1,         /* Not available: CSD */
 241     -1,         /* Not available: SSD */
 242     -1,         /* Not available: CFLG */
 243     -1,         /* Not available: FSR */
 244     -1,         /* Not available: FIR */
 245     -1,         /* Not available: FDR */
 246     -1,
 247     PT_AR_CCV,
 248     -1, -1, -1,
 249     PT_AR_UNAT,
 250     -1, -1, -1,
 251     PT_AR_FPSR,
 252     -1, -1, -1,
 253     -1,         /* Not available: ITC */
 254     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 255     -1, -1, -1, -1, -1, -1, -1, -1, -1,
 256     PT_AR_PFS,
 257     PT_AR_LC,
 258     -1,         /* Not available: EC, the Epilog Count register */
 259     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 260     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 261     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 262     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 263     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 264     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 265     -1,
 266   };
 267
 268 static int
 269 ia64_cannot_store_register (int regno)
 270 {
 271   return 0;
 272 }
 273
 274 static int
 275 ia64_cannot_fetch_register (int regno)
 276 {
 277   return 0;
 278 }
 279
 280 struct linux_target_ops the_low_target = {
 281   ia64_num_regs,
 282   ia64_regmap,
 283   ia64_cannot_fetch_register,
 284   ia64_cannot_store_register,
 285 };