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, 2007
   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 3 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, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "server.h"
  21 #include "linux-low.h"
  22
  23 #ifdef HAVE_SYS_REG_H
  24 #include <sys/reg.h>
  25 #endif
  26
  27 #define ia64_num_regs 462
  28
  29 #include <asm/ptrace_offsets.h>
  30
  31 static int ia64_regmap[] =
  32   {
  33     /* general registers */
  34     -1,         /* gr0 not available; i.e, it's always zero */
  35     PT_R1,
  36     PT_R2,
  37     PT_R3,
  38     PT_R4,
  39     PT_R5,
  40     PT_R6,
  41     PT_R7,
  42     PT_R8,
  43     PT_R9,
  44     PT_R10,
  45     PT_R11,
  46     PT_R12,
  47     PT_R13,
  48     PT_R14,
  49     PT_R15,
  50     PT_R16,
  51     PT_R17,
  52     PT_R18,
  53     PT_R19,
  54     PT_R20,
  55     PT_R21,
  56     PT_R22,
  57     PT_R23,
  58     PT_R24,
  59     PT_R25,
  60     PT_R26,
  61     PT_R27,
  62     PT_R28,
  63     PT_R29,
  64     PT_R30,
  65     PT_R31,
  66     /* gr32 through gr127 not directly available via the ptrace interface */
  67     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  68     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  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     /* Floating point registers */
  74     -1, -1,     /* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */
  75     PT_F2,
  76     PT_F3,
  77     PT_F4,
  78     PT_F5,
  79     PT_F6,
  80     PT_F7,
  81     PT_F8,
  82     PT_F9,
  83     PT_F10,
  84     PT_F11,
  85     PT_F12,
  86     PT_F13,
  87     PT_F14,
  88     PT_F15,
  89     PT_F16,
  90     PT_F17,
  91     PT_F18,
  92     PT_F19,
  93     PT_F20,
  94     PT_F21,
  95     PT_F22,
  96     PT_F23,
  97     PT_F24,
  98     PT_F25,
  99     PT_F26,
 100     PT_F27,
 101     PT_F28,
 102     PT_F29,
 103     PT_F30,
 104     PT_F31,
 105     PT_F32,
 106     PT_F33,
 107     PT_F34,
 108     PT_F35,
 109     PT_F36,
 110     PT_F37,
 111     PT_F38,
 112     PT_F39,
 113     PT_F40,
 114     PT_F41,
 115     PT_F42,
 116     PT_F43,
 117     PT_F44,
 118     PT_F45,
 119     PT_F46,
 120     PT_F47,
 121     PT_F48,
 122     PT_F49,
 123     PT_F50,
 124     PT_F51,
 125     PT_F52,
 126     PT_F53,
 127     PT_F54,
 128     PT_F55,
 129     PT_F56,
 130     PT_F57,
 131     PT_F58,
 132     PT_F59,
 133     PT_F60,
 134     PT_F61,
 135     PT_F62,
 136     PT_F63,
 137     PT_F64,
 138     PT_F65,
 139     PT_F66,
 140     PT_F67,
 141     PT_F68,
 142     PT_F69,
 143     PT_F70,
 144     PT_F71,
 145     PT_F72,
 146     PT_F73,
 147     PT_F74,
 148     PT_F75,
 149     PT_F76,
 150     PT_F77,
 151     PT_F78,
 152     PT_F79,
 153     PT_F80,
 154     PT_F81,
 155     PT_F82,
 156     PT_F83,
 157     PT_F84,
 158     PT_F85,
 159     PT_F86,
 160     PT_F87,
 161     PT_F88,
 162     PT_F89,
 163     PT_F90,
 164     PT_F91,
 165     PT_F92,
 166     PT_F93,
 167     PT_F94,
 168     PT_F95,
 169     PT_F96,
 170     PT_F97,
 171     PT_F98,
 172     PT_F99,
 173     PT_F100,
 174     PT_F101,
 175     PT_F102,
 176     PT_F103,
 177     PT_F104,
 178     PT_F105,
 179     PT_F106,
 180     PT_F107,
 181     PT_F108,
 182     PT_F109,
 183     PT_F110,
 184     PT_F111,
 185     PT_F112,
 186     PT_F113,
 187     PT_F114,
 188     PT_F115,
 189     PT_F116,
 190     PT_F117,
 191     PT_F118,
 192     PT_F119,
 193     PT_F120,
 194     PT_F121,
 195     PT_F122,
 196     PT_F123,
 197     PT_F124,
 198     PT_F125,
 199     PT_F126,
 200     PT_F127,
 201     /* predicate registers - we don't fetch these individually */
 202     -1, -1, -1, -1, -1, -1, -1, -1,
 203     -1, -1, -1, -1, -1, -1, -1, -1,
 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     /* branch registers */
 211     PT_B0,
 212     PT_B1,
 213     PT_B2,
 214     PT_B3,
 215     PT_B4,
 216     PT_B5,
 217     PT_B6,
 218     PT_B7,
 219     /* virtual frame pointer and virtual return address pointer */
 220     -1, -1,
 221     /* other registers */
 222     PT_PR,
 223     PT_CR_IIP,  /* ip */
 224     PT_CR_IPSR, /* psr */
 225     PT_CFM,     /* cfm */
 226     /* kernel registers not visible via ptrace interface (?) */
 227     -1, -1, -1, -1, -1, -1, -1, -1,
 228     /* hole */
 229     -1, -1, -1, -1, -1, -1, -1, -1,
 230     PT_AR_RSC,
 231     PT_AR_BSP,
 232     PT_AR_BSPSTORE,
 233     PT_AR_RNAT,
 234     -1,
 235     -1,         /* Not available: FCR, IA32 floating control register */
 236     -1, -1,
 237     -1,         /* Not available: EFLAG */
 238     -1,         /* Not available: CSD */
 239     -1,         /* Not available: SSD */
 240     -1,         /* Not available: CFLG */
 241     -1,         /* Not available: FSR */
 242     -1,         /* Not available: FIR */
 243     -1,         /* Not available: FDR */
 244     -1,
 245     PT_AR_CCV,
 246     -1, -1, -1,
 247     PT_AR_UNAT,
 248     -1, -1, -1,
 249     PT_AR_FPSR,
 250     -1, -1, -1,
 251     -1,         /* Not available: ITC */
 252     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 253     -1, -1, -1, -1, -1, -1, -1, -1, -1,
 254     PT_AR_PFS,
 255     PT_AR_LC,
 256     -1,         /* Not available: EC, the Epilog Count register */
 257     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 258     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 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,
 264   };
 265
 266 static int
 267 ia64_cannot_store_register (int regno)
 268 {
 269   return 0;
 270 }
 271
 272 static int
 273 ia64_cannot_fetch_register (int regno)
 274 {
 275   return 0;
 276 }
 277
 278 struct linux_target_ops the_low_target = {
 279   ia64_num_regs,
 280   ia64_regmap,
 281   ia64_cannot_fetch_register,
 282   ia64_cannot_store_register,
 283 };