gdb/ultra3-nat.c

   1 /* OBSOLETE /* Native-dependent code for GDB, for NYU Ultra3 running Sym1 OS. */
   2 /* OBSOLETE    Copyright 1988, 1989, 1991, 1992, 1995, 1996, 1999, 2000, 2001 */
   3 /* OBSOLETE    Free Software Foundation, Inc. */
   4 /* OBSOLETE    Contributed by David Wood (wood@nyu.edu) at New York University. */
   5 /* OBSOLETE  */
   6 /* OBSOLETE    This file is part of GDB. */
   7 /* OBSOLETE  */
   8 /* OBSOLETE    This program is free software; you can redistribute it and/or modify */
   9 /* OBSOLETE    it under the terms of the GNU General Public License as published by */
  10 /* OBSOLETE    the Free Software Foundation; either version 2 of the License, or */
  11 /* OBSOLETE    (at your option) any later version. */
  12 /* OBSOLETE  */
  13 /* OBSOLETE    This program is distributed in the hope that it will be useful, */
  14 /* OBSOLETE    but WITHOUT ANY WARRANTY; without even the implied warranty of */
  15 /* OBSOLETE    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
  16 /* OBSOLETE    GNU General Public License for more details. */
  17 /* OBSOLETE  */
  18 /* OBSOLETE    You should have received a copy of the GNU General Public License */
  19 /* OBSOLETE    along with this program; if not, write to the Free Software */
  20 /* OBSOLETE    Foundation, Inc., 59 Temple Place - Suite 330, */
  21 /* OBSOLETE    Boston, MA 02111-1307, USA.  */ */
  22 /* OBSOLETE  */
  23 /* OBSOLETE #define DEBUG */
  24 /* OBSOLETE #include "defs.h" */
  25 /* OBSOLETE #include "frame.h" */
  26 /* OBSOLETE #include "inferior.h" */
  27 /* OBSOLETE #include "symtab.h" */
  28 /* OBSOLETE #include "value.h" */
  29 /* OBSOLETE #include "regcache.h" */
  30 /* OBSOLETE  */
  31 /* OBSOLETE #include <sys/types.h> */
  32 /* OBSOLETE #include <sys/param.h> */
  33 /* OBSOLETE #include <signal.h> */
  34 /* OBSOLETE #include <sys/ioctl.h> */
  35 /* OBSOLETE #include <fcntl.h> */
  36 /* OBSOLETE  */
  37 /* OBSOLETE #include "gdbcore.h" */
  38 /* OBSOLETE  */
  39 /* OBSOLETE #include <sys/file.h> */
  40 /* OBSOLETE #include "gdb_stat.h" */
  41 /* OBSOLETE  */
  42 /* OBSOLETE static void fetch_core_registers (char *, unsigned, int, CORE_ADDR); */
  43 /* OBSOLETE  */
  44 /* OBSOLETE /* Assumes support for AMD's Binary Compatibility Standard */
  45 /* OBSOLETE    for ptrace().  If you define ULTRA3, the ultra3 extensions to */
  46 /* OBSOLETE    ptrace() are used allowing the reading of more than one register */
  47 /* OBSOLETE    at a time.  */
  48 /* OBSOLETE  */
  49 /* OBSOLETE    This file assumes KERNEL_DEBUGGING is turned off.  This means */
  50 /* OBSOLETE    that if the user/gdb tries to read gr64-gr95 or any of the  */
  51 /* OBSOLETE    protected special registers we silently return -1 (see the */
  52 /* OBSOLETE    CANNOT_STORE/FETCH_REGISTER macros).  */ */
  53 /* OBSOLETE #define     ULTRA3 */
  54 /* OBSOLETE  */
  55 /* OBSOLETE #if !defined (offsetof) */
  56 /* OBSOLETE #define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) */
  57 /* OBSOLETE #endif */
  58 /* OBSOLETE  */
  59 /* OBSOLETE extern int errno; */
  60 /* OBSOLETE struct ptrace_user pt_struct; */
  61 /* OBSOLETE  */
  62 /* OBSOLETE /* Get all available registers from the inferior.  Registers that are */
  63 /* OBSOLETE  * defined in REGISTER_NAMES, but not available to the user/gdb are */
  64 /* OBSOLETE  * supplied as -1.  This may include gr64-gr95 and the protected special */
  65 /* OBSOLETE  * purpose registers. */
  66 /* OBSOLETE  */ */
  67 /* OBSOLETE  */
  68 /* OBSOLETE void */
  69 /* OBSOLETE fetch_inferior_registers (int regno) */
  70 /* OBSOLETE { */
  71 /* OBSOLETE   register int i, j, ret_val = 0; */
  72 /* OBSOLETE   char buf[128]; */
  73 /* OBSOLETE  */
  74 /* OBSOLETE   if (regno != -1) */
  75 /* OBSOLETE     { */
  76 /* OBSOLETE       fetch_register (regno); */
  77 /* OBSOLETE       return; */
  78 /* OBSOLETE     } */
  79 /* OBSOLETE  */
  80 /* OBSOLETE /* Global Registers */ */
  81 /* OBSOLETE #ifdef ULTRA3 */
  82 /* OBSOLETE   errno = 0; */
  83 /* OBSOLETE   ptrace (PT_READ_STRUCT, PIDGET (inferior_ptid), */
  84 /* OBSOLETE       (PTRACE_ARG3_TYPE) register_addr (GR96_REGNUM, 0), */
  85 /* OBSOLETE       (int) &pt_struct.pt_gr[0], 32 * 4); */
  86 /* OBSOLETE   if (errno != 0) */
  87 /* OBSOLETE     { */
  88 /* OBSOLETE       perror_with_name ("reading global registers"); */
  89 /* OBSOLETE       ret_val = -1; */
  90 /* OBSOLETE     } */
  91 /* OBSOLETE   else */
  92 /* OBSOLETE     for (regno = GR96_REGNUM, j = 0; j < 32; regno++, j++) */
  93 /* OBSOLETE       { */
  94 /* OBSOLETE     supply_register (regno, &pt_struct.pt_gr[j]); */
  95 /* OBSOLETE       } */
  96 /* OBSOLETE #else */
  97 /* OBSOLETE   for (regno = GR96_REGNUM; !ret_val && regno < GR96_REGNUM + 32; regno++) */
  98 /* OBSOLETE     fetch_register (regno); */
  99 /* OBSOLETE #endif */
 100 /* OBSOLETE  */
 101 /* OBSOLETE /* Local Registers */ */
 102 /* OBSOLETE #ifdef ULTRA3 */
 103 /* OBSOLETE   errno = 0; */
 104 /* OBSOLETE   ptrace (PT_READ_STRUCT, PIDGET (inferior_ptid), */
 105 /* OBSOLETE       (PTRACE_ARG3_TYPE) register_addr (LR0_REGNUM, 0), */
 106 /* OBSOLETE       (int) &pt_struct.pt_lr[0], 128 * 4); */
 107 /* OBSOLETE   if (errno != 0) */
 108 /* OBSOLETE     { */
 109 /* OBSOLETE       perror_with_name ("reading local registers"); */
 110 /* OBSOLETE       ret_val = -1; */
 111 /* OBSOLETE     } */
 112 /* OBSOLETE   else */
 113 /* OBSOLETE     for (regno = LR0_REGNUM, j = 0; j < 128; regno++, j++) */
 114 /* OBSOLETE       { */
 115 /* OBSOLETE     supply_register (regno, &pt_struct.pt_lr[j]); */
 116 /* OBSOLETE       } */
 117 /* OBSOLETE #else */
 118 /* OBSOLETE   for (regno = LR0_REGNUM; !ret_val && regno < LR0_REGNUM + 128; regno++) */
 119 /* OBSOLETE     fetch_register (regno); */
 120 /* OBSOLETE #endif */
 121 /* OBSOLETE  */
 122 /* OBSOLETE /* Special Registers */ */
 123 /* OBSOLETE   fetch_register (GR1_REGNUM); */
 124 /* OBSOLETE   fetch_register (CPS_REGNUM); */
 125 /* OBSOLETE   fetch_register (PC_REGNUM); */
 126 /* OBSOLETE   fetch_register (NPC_REGNUM); */
 127 /* OBSOLETE   fetch_register (PC2_REGNUM); */
 128 /* OBSOLETE   fetch_register (IPC_REGNUM); */
 129 /* OBSOLETE   fetch_register (IPA_REGNUM); */
 130 /* OBSOLETE   fetch_register (IPB_REGNUM); */
 131 /* OBSOLETE   fetch_register (Q_REGNUM); */
 132 /* OBSOLETE   fetch_register (BP_REGNUM); */
 133 /* OBSOLETE   fetch_register (FC_REGNUM); */
 134 /* OBSOLETE  */
 135 /* OBSOLETE /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ */
 136 /* OBSOLETE   registers_fetched (); */
 137 /* OBSOLETE } */
 138 /* OBSOLETE  */
 139 /* OBSOLETE /* Store our register values back into the inferior. */
 140 /* OBSOLETE  * If REGNO is -1, do this for all registers. */
 141 /* OBSOLETE  * Otherwise, REGNO specifies which register (so we can save time).   */
 142 /* OBSOLETE  * NOTE: Assumes AMD's binary compatibility standard.  */
 143 /* OBSOLETE  */ */
 144 /* OBSOLETE  */
 145 /* OBSOLETE void */
 146 /* OBSOLETE store_inferior_registers (int regno) */
 147 /* OBSOLETE { */
 148 /* OBSOLETE   register unsigned int regaddr; */
 149 /* OBSOLETE   char buf[80]; */
 150 /* OBSOLETE  */
 151 /* OBSOLETE   if (regno >= 0) */
 152 /* OBSOLETE     { */
 153 /* OBSOLETE       if (CANNOT_STORE_REGISTER (regno)) */
 154 /* OBSOLETE     return; */
 155 /* OBSOLETE       regaddr = register_addr (regno, 0); */
 156 /* OBSOLETE       errno = 0; */
 157 /* OBSOLETE       ptrace (PT_WRITE_U, PIDGET (inferior_ptid), */
 158 /* OBSOLETE           (PTRACE_ARG3_TYPE) regaddr, read_register (regno)); */
 159 /* OBSOLETE       if (errno != 0) */
 160 /* OBSOLETE     { */
 161 /* OBSOLETE       sprintf (buf, "writing register %s (#%d)", REGISTER_NAME (regno), regno); */
 162 /* OBSOLETE       perror_with_name (buf); */
 163 /* OBSOLETE     } */
 164 /* OBSOLETE     } */
 165 /* OBSOLETE   else */
 166 /* OBSOLETE     { */
 167 /* OBSOLETE #ifdef ULTRA3 */
 168 /* OBSOLETE       pt_struct.pt_gr1 = read_register (GR1_REGNUM); */
 169 /* OBSOLETE       for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) */
 170 /* OBSOLETE     pt_struct.pt_gr[regno] = read_register (regno); */
 171 /* OBSOLETE       for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) */
 172 /* OBSOLETE     pt_struct.pt_gr[regno] = read_register (regno); */
 173 /* OBSOLETE       errno = 0; */
 174 /* OBSOLETE       ptrace (PT_WRITE_STRUCT, PIDGET (inferior_ptid), */
 175 /* OBSOLETE           (PTRACE_ARG3_TYPE) register_addr (GR1_REGNUM, 0), */
 176 /* OBSOLETE           (int) &pt_struct.pt_gr1, (1 * 32 * 128) * 4); */
 177 /* OBSOLETE       if (errno != 0) */
 178 /* OBSOLETE     { */
 179 /* OBSOLETE       sprintf (buf, "writing all local/global registers"); */
 180 /* OBSOLETE       perror_with_name (buf); */
 181 /* OBSOLETE     } */
 182 /* OBSOLETE       pt_struct.pt_psr = read_register (CPS_REGNUM); */
 183 /* OBSOLETE       pt_struct.pt_pc0 = read_register (NPC_REGNUM); */
 184 /* OBSOLETE       pt_struct.pt_pc1 = read_register (PC_REGNUM); */
 185 /* OBSOLETE       pt_struct.pt_pc2 = read_register (PC2_REGNUM); */
 186 /* OBSOLETE       pt_struct.pt_ipc = read_register (IPC_REGNUM); */
 187 /* OBSOLETE       pt_struct.pt_ipa = read_register (IPA_REGNUM); */
 188 /* OBSOLETE       pt_struct.pt_ipb = read_register (IPB_REGNUM); */
 189 /* OBSOLETE       pt_struct.pt_q = read_register (Q_REGNUM); */
 190 /* OBSOLETE       pt_struct.pt_bp = read_register (BP_REGNUM); */
 191 /* OBSOLETE       pt_struct.pt_fc = read_register (FC_REGNUM); */
 192 /* OBSOLETE       errno = 0; */
 193 /* OBSOLETE       ptrace (PT_WRITE_STRUCT, PIDGET (inferior_ptid), */
 194 /* OBSOLETE           (PTRACE_ARG3_TYPE) register_addr (CPS_REGNUM, 0), */
 195 /* OBSOLETE           (int) &pt_struct.pt_psr, (10) * 4); */
 196 /* OBSOLETE       if (errno != 0) */
 197 /* OBSOLETE     { */
 198 /* OBSOLETE       sprintf (buf, "writing all special registers"); */
 199 /* OBSOLETE       perror_with_name (buf); */
 200 /* OBSOLETE       return; */
 201 /* OBSOLETE     } */
 202 /* OBSOLETE #else */
 203 /* OBSOLETE       store_inferior_registers (GR1_REGNUM); */
 204 /* OBSOLETE       for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) */
 205 /* OBSOLETE     store_inferior_registers (regno); */
 206 /* OBSOLETE       for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) */
 207 /* OBSOLETE     store_inferior_registers (regno); */
 208 /* OBSOLETE       store_inferior_registers (CPS_REGNUM); */
 209 /* OBSOLETE       store_inferior_registers (PC_REGNUM); */
 210 /* OBSOLETE       store_inferior_registers (NPC_REGNUM); */
 211 /* OBSOLETE       store_inferior_registers (PC2_REGNUM); */
 212 /* OBSOLETE       store_inferior_registers (IPC_REGNUM); */
 213 /* OBSOLETE       store_inferior_registers (IPA_REGNUM); */
 214 /* OBSOLETE       store_inferior_registers (IPB_REGNUM); */
 215 /* OBSOLETE       store_inferior_registers (Q_REGNUM); */
 216 /* OBSOLETE       store_inferior_registers (BP_REGNUM); */
 217 /* OBSOLETE       store_inferior_registers (FC_REGNUM); */
 218 /* OBSOLETE #endif /* ULTRA3 */ */
 219 /* OBSOLETE     } */
 220 /* OBSOLETE } */
 221 /* OBSOLETE  */
 222 /* OBSOLETE /*  */
 223 /* OBSOLETE  * Fetch an individual register (and supply it). */
 224 /* OBSOLETE  * return 0 on success, -1 on failure. */
 225 /* OBSOLETE  * NOTE: Assumes AMD's Binary Compatibility Standard for ptrace(). */
 226 /* OBSOLETE  */ */
 227 /* OBSOLETE static void */
 228 /* OBSOLETE fetch_register (int regno) */
 229 /* OBSOLETE { */
 230 /* OBSOLETE   char buf[128]; */
 231 /* OBSOLETE   int val; */
 232 /* OBSOLETE  */
 233 /* OBSOLETE   if (CANNOT_FETCH_REGISTER (regno)) */
 234 /* OBSOLETE     { */
 235 /* OBSOLETE       val = -1; */
 236 /* OBSOLETE       supply_register (regno, &val); */
 237 /* OBSOLETE     } */
 238 /* OBSOLETE   else */
 239 /* OBSOLETE     { */
 240 /* OBSOLETE       errno = 0; */
 241 /* OBSOLETE       val = ptrace (PT_READ_U, PIDGET (inferior_ptid), */
 242 /* OBSOLETE                 (PTRACE_ARG3_TYPE) register_addr (regno, 0), 0); */
 243 /* OBSOLETE       if (errno != 0) */
 244 /* OBSOLETE     { */
 245 /* OBSOLETE       sprintf (buf, "reading register %s (#%d)", REGISTER_NAME (regno), regno); */
 246 /* OBSOLETE       perror_with_name (buf); */
 247 /* OBSOLETE     } */
 248 /* OBSOLETE       else */
 249 /* OBSOLETE     { */
 250 /* OBSOLETE       supply_register (regno, &val); */
 251 /* OBSOLETE     } */
 252 /* OBSOLETE     } */
 253 /* OBSOLETE } */
 254 /* OBSOLETE  */
 255 /* OBSOLETE  */
 256 /* OBSOLETE /*  */
 257 /* OBSOLETE  * Read AMD's Binary Compatibilty Standard conforming core file. */
 258 /* OBSOLETE  * struct ptrace_user is the first thing in the core file */
 259 /* OBSOLETE  * */
 260 /* OBSOLETE  * CORE_REG_SECT, CORE_REG_SIZE, WHICH, and REG_ADDR are all ignored. */
 261 /* OBSOLETE  */ */
 262 /* OBSOLETE  */
 263 /* OBSOLETE static void */
 264 /* OBSOLETE fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, */
 265 /* OBSOLETE                   int which, CORE_ADDR reg_addr) */
 266 /* OBSOLETE { */
 267 /* OBSOLETE   register int regno; */
 268 /* OBSOLETE   int val; */
 269 /* OBSOLETE   char buf[4]; */
 270 /* OBSOLETE  */
 271 /* OBSOLETE   for (regno = 0; regno < NUM_REGS; regno++) */
 272 /* OBSOLETE     { */
 273 /* OBSOLETE       if (!CANNOT_FETCH_REGISTER (regno)) */
 274 /* OBSOLETE     { */
 275 /* OBSOLETE       val = bfd_seek (core_bfd, (file_ptr) register_addr (regno, 0), SEEK_SET); */
 276 /* OBSOLETE       if (val < 0 || (val = bfd_read (buf, sizeof buf, 1, core_bfd)) < 0) */
 277 /* OBSOLETE         { */
 278 /* OBSOLETE           char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) + 35); */
 279 /* OBSOLETE           strcpy (buffer, "Reading core register "); */
 280 /* OBSOLETE           strcat (buffer, REGISTER_NAME (regno)); */
 281 /* OBSOLETE           perror_with_name (buffer); */
 282 /* OBSOLETE         } */
 283 /* OBSOLETE       supply_register (regno, buf); */
 284 /* OBSOLETE     } */
 285 /* OBSOLETE     } */
 286 /* OBSOLETE  */
 287 /* OBSOLETE   /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ */
 288 /* OBSOLETE   registers_fetched (); */
 289 /* OBSOLETE } */
 290 /* OBSOLETE  */
 291 /* OBSOLETE  */
 292 /* OBSOLETE /*   */
 293 /* OBSOLETE  * Takes a register number as defined in tm.h via REGISTER_NAMES, and maps */
 294 /* OBSOLETE  * it to an offset in a struct ptrace_user defined by AMD's BCS. */
 295 /* OBSOLETE  * That is, it defines the mapping between gdb register numbers and items in */
 296 /* OBSOLETE  * a struct ptrace_user. */
 297 /* OBSOLETE  * A register protection scheme is set up here.  If a register not */
 298 /* OBSOLETE  * available to the user is specified in 'regno', then an address that */
 299 /* OBSOLETE  * will cause ptrace() to fail is returned. */
 300 /* OBSOLETE  */ */
 301 /* OBSOLETE CORE_ADDR */
 302 /* OBSOLETE register_addr (int regno, CORE_ADDR blockend) */
 303 /* OBSOLETE { */
 304 /* OBSOLETE   if ((regno >= LR0_REGNUM) && (regno < LR0_REGNUM + 128)) */
 305 /* OBSOLETE     { */
 306 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_lr[regno - LR0_REGNUM])); */
 307 /* OBSOLETE     } */
 308 /* OBSOLETE   else if ((regno >= GR96_REGNUM) && (regno < GR96_REGNUM + 32)) */
 309 /* OBSOLETE     { */
 310 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_gr[regno - GR96_REGNUM])); */
 311 /* OBSOLETE     } */
 312 /* OBSOLETE   else */
 313 /* OBSOLETE     { */
 314 /* OBSOLETE       switch (regno) */
 315 /* OBSOLETE     { */
 316 /* OBSOLETE     case GR1_REGNUM: */
 317 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_gr1)); */
 318 /* OBSOLETE     case CPS_REGNUM: */
 319 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_psr)); */
 320 /* OBSOLETE     case NPC_REGNUM: */
 321 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_pc0)); */
 322 /* OBSOLETE     case PC_REGNUM: */
 323 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_pc1)); */
 324 /* OBSOLETE     case PC2_REGNUM: */
 325 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_pc2)); */
 326 /* OBSOLETE     case IPC_REGNUM: */
 327 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_ipc)); */
 328 /* OBSOLETE     case IPA_REGNUM: */
 329 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_ipa)); */
 330 /* OBSOLETE     case IPB_REGNUM: */
 331 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_ipb)); */
 332 /* OBSOLETE     case Q_REGNUM: */
 333 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_q)); */
 334 /* OBSOLETE     case BP_REGNUM: */
 335 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_bp)); */
 336 /* OBSOLETE     case FC_REGNUM: */
 337 /* OBSOLETE       return (offsetof (struct ptrace_user, pt_fc)); */
 338 /* OBSOLETE     default: */
 339 /* OBSOLETE       fprintf_filtered (gdb_stderr, "register_addr():Bad register %s (%d)\n", */
 340 /* OBSOLETE                         REGISTER_NAME (regno), regno); */
 341 /* OBSOLETE       return (0xffffffff);  /* Should make ptrace() fail */ */
 342 /* OBSOLETE     } */
 343 /* OBSOLETE     } */
 344 /* OBSOLETE } */
 345 /* OBSOLETE \f */
 346 /* OBSOLETE  */
 347 /* OBSOLETE /* Register that we are able to handle ultra3 core file formats. */
 348 /* OBSOLETE    FIXME: is this really bfd_target_unknown_flavour? */ */
 349 /* OBSOLETE  */
 350 /* OBSOLETE static struct core_fns ultra3_core_fns = */
 351 /* OBSOLETE { */
 352 /* OBSOLETE   bfd_target_unknown_flavour,               /* core_flavour */ */
 353 /* OBSOLETE   default_check_format,                     /* check_format */ */
 354 /* OBSOLETE   default_core_sniffer,                     /* core_sniffer */ */
 355 /* OBSOLETE   fetch_core_registers,                     /* core_read_registers */ */
 356 /* OBSOLETE   NULL                                      /* next */ */
 357 /* OBSOLETE }; */
 358 /* OBSOLETE  */
 359 /* OBSOLETE void */
 360 /* OBSOLETE _initialize_core_ultra3 (void) */
 361 /* OBSOLETE { */
 362 /* OBSOLETE   add_core_fns (&ultra3_core_fns); */
 363 /* OBSOLETE } */