projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c7cc583 MK |
1 | // OBSOLETE /* Intel 386 native support. |
| 2 | // OBSOLETE Copyright 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, | |
| 3 | // OBSOLETE 2000, 2001 Free Software Foundation, Inc. | |
| 4 | // OBSOLETE | |
| 5 | // OBSOLETE This file is part of GDB. | |
| 6 | // OBSOLETE | |
| 7 | // OBSOLETE This program is free software; you can redistribute it and/or modify | |
| 8 | // OBSOLETE it under the terms of the GNU General Public License as published by | |
| 9 | // OBSOLETE the Free Software Foundation; either version 2 of the License, or | |
| 10 | // OBSOLETE (at your option) any later version. | |
| 11 | // OBSOLETE | |
| 12 | // OBSOLETE This program is distributed in the hope that it will be useful, | |
| 13 | // OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | // OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | // OBSOLETE GNU General Public License for more details. | |
| 16 | // OBSOLETE | |
| 17 | // OBSOLETE You should have received a copy of the GNU General Public License | |
| 18 | // OBSOLETE along with this program; if not, write to the Free Software | |
| 19 | // OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 | // OBSOLETE Boston, MA 02111-1307, USA. */ | |
| 21 | // OBSOLETE | |
| 22 | // OBSOLETE #include "defs.h" | |
| 23 | // OBSOLETE #include "frame.h" | |
| 24 | // OBSOLETE #include "inferior.h" | |
| 25 | // OBSOLETE #include "language.h" | |
| 26 | // OBSOLETE #include "gdbcore.h" | |
| 27 | // OBSOLETE #include "regcache.h" | |
| 28 | // OBSOLETE | |
| 29 | // OBSOLETE #ifdef USG | |
| 30 | // OBSOLETE #include <sys/types.h> | |
| 31 | // OBSOLETE #endif | |
| 32 | // OBSOLETE | |
| 33 | // OBSOLETE #include <sys/param.h> | |
| 34 | // OBSOLETE #include <sys/dir.h> | |
| 35 | // OBSOLETE #include <signal.h> | |
| 36 | // OBSOLETE #include <sys/user.h> | |
| 37 | // OBSOLETE #include <sys/ioctl.h> | |
| 38 | // OBSOLETE #include <fcntl.h> | |
| 39 | // OBSOLETE | |
| 40 | // OBSOLETE #include <sys/file.h> | |
| 41 | // OBSOLETE #include "gdb_stat.h" | |
| 42 | // OBSOLETE | |
| 43 | // OBSOLETE #include <stddef.h> | |
| 44 | // OBSOLETE #include <sys/ptrace.h> | |
| 45 | // OBSOLETE | |
| 46 | // OBSOLETE /* Does AIX define this in <errno.h>? */ | |
| 47 | // OBSOLETE extern int errno; | |
| 48 | // OBSOLETE | |
| 49 | // OBSOLETE #ifdef HAVE_SYS_REG_H | |
| 50 | // OBSOLETE #include <sys/reg.h> | |
| 51 | // OBSOLETE #endif | |
| 52 | // OBSOLETE | |
| 53 | // OBSOLETE #include "floatformat.h" | |
| 54 | // OBSOLETE | |
| 55 | // OBSOLETE #include "target.h" | |
| 56 | // OBSOLETE | |
| 57 | // OBSOLETE static void fetch_core_registers (char *, unsigned, int, CORE_ADDR); | |
| 58 | // OBSOLETE \f | |
| 59 | // OBSOLETE | |
| 60 | // OBSOLETE /* this table must line up with REGISTER_NAMES in tm-i386v.h */ | |
| 61 | // OBSOLETE /* symbols like 'EAX' come from <sys/reg.h> */ | |
| 62 | // OBSOLETE static int regmap[] = | |
| 63 | // OBSOLETE { | |
| 64 | // OBSOLETE EAX, ECX, EDX, EBX, | |
| 65 | // OBSOLETE USP, EBP, ESI, EDI, | |
| 66 | // OBSOLETE EIP, EFL, CS, SS, | |
| 67 | // OBSOLETE DS, ES, FS, GS, | |
| 68 | // OBSOLETE }; | |
| 69 | // OBSOLETE | |
| 70 | // OBSOLETE /* blockend is the value of u.u_ar0, and points to the | |
| 71 | // OBSOLETE * place where GS is stored | |
| 72 | // OBSOLETE */ | |
| 73 | // OBSOLETE | |
| 74 | // OBSOLETE int | |
| 75 | // OBSOLETE i386_register_u_addr (int blockend, int regnum) | |
| 76 | // OBSOLETE { | |
| 77 | // OBSOLETE #if 0 | |
| 78 | // OBSOLETE /* this will be needed if fp registers are reinstated */ | |
| 79 | // OBSOLETE /* for now, you can look at them with 'info float' | |
| 80 | // OBSOLETE * sys5 wont let you change them with ptrace anyway | |
| 81 | // OBSOLETE */ | |
| 82 | // OBSOLETE if (regnum >= FP0_REGNUM && regnum <= FP7_REGNUM) | |
| 83 | // OBSOLETE { | |
| 84 | // OBSOLETE int ubase, fpstate; | |
| 85 | // OBSOLETE struct user u; | |
| 86 | // OBSOLETE ubase = blockend + 4 * (SS + 1) - KSTKSZ; | |
| 87 | // OBSOLETE fpstate = ubase + ((char *) &u.u_fpstate - (char *) &u); | |
| 88 | // OBSOLETE return (fpstate + 0x1c + 10 * (regnum - FP0_REGNUM)); | |
| 89 | // OBSOLETE } | |
| 90 | // OBSOLETE else | |
| 91 | // OBSOLETE #endif | |
| 92 | // OBSOLETE return (blockend + 4 * regmap[regnum]); | |
| 93 | // OBSOLETE | |
| 94 | // OBSOLETE } | |
| 95 | // OBSOLETE | |
| 96 | // OBSOLETE /* The code below only work on the aix ps/2 (i386-ibm-aix) - | |
| 97 | // OBSOLETE * mtranle@paris - Sat Apr 11 10:34:12 1992 | |
| 98 | // OBSOLETE */ | |
| 99 | // OBSOLETE | |
| 100 | // OBSOLETE struct env387 | |
| 101 | // OBSOLETE { | |
| 102 | // OBSOLETE unsigned short control; | |
| 103 | // OBSOLETE unsigned short r0; | |
| 104 | // OBSOLETE unsigned short status; | |
| 105 | // OBSOLETE unsigned short r1; | |
| 106 | // OBSOLETE unsigned short tag; | |
| 107 | // OBSOLETE unsigned short r2; | |
| 108 | // OBSOLETE unsigned long eip; | |
| 109 | // OBSOLETE unsigned short code_seg; | |
| 110 | // OBSOLETE unsigned short opcode; | |
| 111 | // OBSOLETE unsigned long operand; | |
| 112 | // OBSOLETE unsigned short operand_seg; | |
| 113 | // OBSOLETE unsigned short r3; | |
| 114 | // OBSOLETE unsigned char regs[8][10]; | |
| 115 | // OBSOLETE }; | |
| 116 | // OBSOLETE | |
| 117 | // OBSOLETE static | |
| 118 | // OBSOLETE print_387_status (unsigned short status, struct env387 *ep) | |
| 119 | // OBSOLETE { | |
| 120 | // OBSOLETE int i; | |
| 121 | // OBSOLETE int bothstatus; | |
| 122 | // OBSOLETE int top; | |
| 123 | // OBSOLETE int fpreg; | |
| 124 | // OBSOLETE unsigned char *p; | |
| 125 | // OBSOLETE | |
| 126 | // OBSOLETE bothstatus = ((status != 0) && (ep->status != 0)); | |
| 127 | // OBSOLETE if (status != 0) | |
| 128 | // OBSOLETE { | |
| 129 | // OBSOLETE if (bothstatus) | |
| 130 | // OBSOLETE printf_unfiltered ("u: "); | |
| 131 | // OBSOLETE print_387_status_word (status); | |
| 132 | // OBSOLETE } | |
| 133 | // OBSOLETE | |
| 134 | // OBSOLETE if (ep->status != 0) | |
| 135 | // OBSOLETE { | |
| 136 | // OBSOLETE if (bothstatus) | |
| 137 | // OBSOLETE printf_unfiltered ("e: "); | |
| 138 | // OBSOLETE print_387_status_word (ep->status); | |
| 139 | // OBSOLETE } | |
| 140 | // OBSOLETE | |
| 141 | // OBSOLETE print_387_control_word (ep->control); | |
| 142 | // OBSOLETE printf_unfiltered ("last exception: "); | |
| 143 | // OBSOLETE printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode)); | |
| 144 | // OBSOLETE printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg)); | |
| 145 | // OBSOLETE printf_unfiltered ("%s; ", local_hex_string (ep->eip)); | |
| 146 | // OBSOLETE printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg)); | |
| 147 | // OBSOLETE printf_unfiltered (":%s\n", local_hex_string (ep->operand)); | |
| 148 | // OBSOLETE | |
| 149 | // OBSOLETE top = ((ep->status >> 11) & 7); | |
| 150 | // OBSOLETE | |
| 151 | // OBSOLETE printf_unfiltered ("regno tag msb lsb value\n"); | |
| 152 | // OBSOLETE for (fpreg = 7; fpreg >= 0; fpreg--) | |
| 153 | // OBSOLETE { | |
| 154 | // OBSOLETE double val; | |
| 155 | // OBSOLETE | |
| 156 | // OBSOLETE printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg); | |
| 157 | // OBSOLETE | |
| 158 | // OBSOLETE switch ((ep->tag >> ((7 - fpreg) * 2)) & 3) | |
| 159 | // OBSOLETE { | |
| 160 | // OBSOLETE case 0: | |
| 161 | // OBSOLETE printf_unfiltered ("valid "); | |
| 162 | // OBSOLETE break; | |
| 163 | // OBSOLETE case 1: | |
| 164 | // OBSOLETE printf_unfiltered ("zero "); | |
| 165 | // OBSOLETE break; | |
| 166 | // OBSOLETE case 2: | |
| 167 | // OBSOLETE printf_unfiltered ("trap "); | |
| 168 | // OBSOLETE break; | |
| 169 | // OBSOLETE case 3: | |
| 170 | // OBSOLETE printf_unfiltered ("empty "); | |
| 171 | // OBSOLETE break; | |
| 172 | // OBSOLETE } | |
| 173 | // OBSOLETE for (i = 9; i >= 0; i--) | |
| 174 | // OBSOLETE printf_unfiltered ("%02x", ep->regs[fpreg][i]); | |
| 175 | // OBSOLETE | |
| 176 | // OBSOLETE i387_to_double ((char *) ep->regs[fpreg], (char *) &val); | |
| 177 | // OBSOLETE printf_unfiltered (" %#g\n", val); | |
| 178 | // OBSOLETE } | |
| 179 | // OBSOLETE } | |
| 180 | // OBSOLETE | |
| 181 | // OBSOLETE static struct env387 core_env387; | |
| 182 | // OBSOLETE | |
| 183 | // OBSOLETE void | |
| 184 | // OBSOLETE i386_float_info (void) | |
| 185 | // OBSOLETE { | |
| 186 | // OBSOLETE struct env387 fps; | |
| 187 | // OBSOLETE int fpsaved = 0; | |
| 188 | // OBSOLETE /* We need to reverse the order of the registers. Apparently AIX stores | |
| 189 | // OBSOLETE the highest-numbered ones first. */ | |
| 190 | // OBSOLETE struct env387 fps_fixed; | |
| 191 | // OBSOLETE int i; | |
| 192 | // OBSOLETE | |
| 193 | // OBSOLETE if (! ptid_equal (inferior_ptid, null_ptid)) | |
| 194 | // OBSOLETE { | |
| 195 | // OBSOLETE char buf[10]; | |
| 196 | // OBSOLETE unsigned short status; | |
| 197 | // OBSOLETE | |
| 198 | // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, | |
| 199 | // OBSOLETE offsetof (struct env387, status)); | |
| 200 | // OBSOLETE memcpy (&status, buf, sizeof (status)); | |
| 201 | // OBSOLETE fpsaved = status; | |
| 202 | // OBSOLETE } | |
| 203 | // OBSOLETE else | |
| 204 | // OBSOLETE { | |
| 205 | // OBSOLETE if ((fpsaved = core_env387.status) != 0) | |
| 206 | // OBSOLETE memcpy (&fps, &core_env387, sizeof (fps)); | |
| 207 | // OBSOLETE } | |
| 208 | // OBSOLETE | |
| 209 | // OBSOLETE if (fpsaved == 0) | |
| 210 | // OBSOLETE { | |
| 211 | // OBSOLETE printf_unfiltered ("no floating point status saved\n"); | |
| 212 | // OBSOLETE return; | |
| 213 | // OBSOLETE } | |
| 214 | // OBSOLETE | |
| 215 | // OBSOLETE if (! ptid_equal (inferior_ptid, null_ptid)) | |
| 216 | // OBSOLETE { | |
| 217 | // OBSOLETE int offset; | |
| 218 | // OBSOLETE for (offset = 0; offset < sizeof (fps); offset += 10) | |
| 219 | // OBSOLETE { | |
| 220 | // OBSOLETE char buf[10]; | |
| 221 | // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, offset); | |
| 222 | // OBSOLETE memcpy ((char *) &fps.control + offset, buf, | |
| 223 | // OBSOLETE MIN (10, sizeof (fps) - offset)); | |
| 224 | // OBSOLETE } | |
| 225 | // OBSOLETE } | |
| 226 | // OBSOLETE fps_fixed = fps; | |
| 227 | // OBSOLETE for (i = 0; i < 8; ++i) | |
| 228 | // OBSOLETE memcpy (fps_fixed.regs[i], fps.regs[7 - i], 10); | |
| 229 | // OBSOLETE print_387_status (0, &fps_fixed); | |
| 230 | // OBSOLETE } | |
| 231 | // OBSOLETE | |
| 232 | // OBSOLETE /* Fetch one register. */ | |
| 233 | // OBSOLETE static void | |
| 234 | // OBSOLETE fetch_register (int regno) | |
| 235 | // OBSOLETE { | |
| 236 | // OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; | |
| 237 | // OBSOLETE if (regno < FP0_REGNUM) | |
| 238 | // OBSOLETE *(int *) buf = ptrace (PT_READ_GPR, PIDGET (inferior_ptid), | |
| 239 | // OBSOLETE PT_REG (regmap[regno]), 0, 0); | |
| 240 | // OBSOLETE else | |
| 241 | // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, | |
| 242 | // OBSOLETE (regno - FP0_REGNUM) * 10 + offsetof (struct env387, regs)); | |
| 243 | // OBSOLETE supply_register (regno, buf); | |
| 244 | // OBSOLETE } | |
| 245 | // OBSOLETE | |
| 246 | // OBSOLETE void | |
| 247 | // OBSOLETE fetch_inferior_registers (int regno) | |
| 248 | // OBSOLETE { | |
| 249 | // OBSOLETE if (regno < 0) | |
| 250 | // OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) | |
| 251 | // OBSOLETE fetch_register (regno); | |
| 252 | // OBSOLETE else | |
| 253 | // OBSOLETE fetch_register (regno); | |
| 254 | // OBSOLETE } | |
| 255 | // OBSOLETE | |
| 256 | // OBSOLETE /* store one register */ | |
| 257 | // OBSOLETE static void | |
| 258 | // OBSOLETE store_register (int regno) | |
| 259 | // OBSOLETE { | |
| 260 | // OBSOLETE char buf[80]; | |
| 261 | // OBSOLETE errno = 0; | |
| 262 | // OBSOLETE if (regno < FP0_REGNUM) | |
| 263 | // OBSOLETE ptrace (PT_WRITE_GPR, PIDGET (inferior_ptid), PT_REG (regmap[regno]), | |
| 264 | // OBSOLETE *(int *) ®isters[REGISTER_BYTE (regno)], 0); | |
| 265 | // OBSOLETE else | |
| 266 | // OBSOLETE ptrace (PT_WRITE_FPR, PIDGET (inferior_ptid), | |
| 267 | // OBSOLETE ®isters[REGISTER_BYTE (regno)], | |
| 268 | // OBSOLETE (regno - FP0_REGNUM) * 10 + offsetof (struct env387, regs)); | |
| 269 | // OBSOLETE | |
| 270 | // OBSOLETE if (errno != 0) | |
| 271 | // OBSOLETE { | |
| 272 | // OBSOLETE sprintf (buf, "writing register number %d", regno); | |
| 273 | // OBSOLETE perror_with_name (buf); | |
| 274 | // OBSOLETE } | |
| 275 | // OBSOLETE } | |
| 276 | // OBSOLETE | |
| 277 | // OBSOLETE /* Store our register values back into the inferior. | |
| 278 | // OBSOLETE If REGNO is -1, do this for all registers. | |
| 279 | // OBSOLETE Otherwise, REGNO specifies which register (so we can save time). */ | |
| 280 | // OBSOLETE void | |
| 281 | // OBSOLETE store_inferior_registers (int regno) | |
| 282 | // OBSOLETE { | |
| 283 | // OBSOLETE if (regno < 0) | |
| 284 | // OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) | |
| 285 | // OBSOLETE store_register (regno); | |
| 286 | // OBSOLETE else | |
| 287 | // OBSOLETE store_register (regno); | |
| 288 | // OBSOLETE } | |
| 289 | // OBSOLETE | |
| 290 | // OBSOLETE #ifndef CD_AX /* defined in sys/i386/coredump.h */ | |
| 291 | // OBSOLETE #define CD_AX 0 | |
| 292 | // OBSOLETE #define CD_BX 1 | |
| 293 | // OBSOLETE #define CD_CX 2 | |
| 294 | // OBSOLETE #define CD_DX 3 | |
| 295 | // OBSOLETE #define CD_SI 4 | |
| 296 | // OBSOLETE #define CD_DI 5 | |
| 297 | // OBSOLETE #define CD_BP 6 | |
| 298 | // OBSOLETE #define CD_SP 7 | |
| 299 | // OBSOLETE #define CD_FL 8 | |
| 300 | // OBSOLETE #define CD_IP 9 | |
| 301 | // OBSOLETE #define CD_CS 10 | |
| 302 | // OBSOLETE #define CD_DS 11 | |
| 303 | // OBSOLETE #define CD_ES 12 | |
| 304 | // OBSOLETE #define CD_FS 13 | |
| 305 | // OBSOLETE #define CD_GS 14 | |
| 306 | // OBSOLETE #define CD_SS 15 | |
| 307 | // OBSOLETE #endif | |
| 308 | // OBSOLETE | |
| 309 | // OBSOLETE /* | |
| 310 | // OBSOLETE * The order here in core_regmap[] has to be the same as in | |
| 311 | // OBSOLETE * regmap[] above. | |
| 312 | // OBSOLETE */ | |
| 313 | // OBSOLETE static int core_regmap[] = | |
| 314 | // OBSOLETE { | |
| 315 | // OBSOLETE CD_AX, CD_CX, CD_DX, CD_BX, | |
| 316 | // OBSOLETE CD_SP, CD_BP, CD_SI, CD_DI, | |
| 317 | // OBSOLETE CD_IP, CD_FL, CD_CS, CD_SS, | |
| 318 | // OBSOLETE CD_DS, CD_ES, CD_FS, CD_GS, | |
| 319 | // OBSOLETE }; | |
| 320 | // OBSOLETE | |
| 321 | // OBSOLETE /* Provide registers to GDB from a core file. | |
| 322 | // OBSOLETE | |
| 323 | // OBSOLETE CORE_REG_SECT points to an array of bytes, which were obtained from | |
| 324 | // OBSOLETE a core file which BFD thinks might contain register contents. | |
| 325 | // OBSOLETE CORE_REG_SIZE is its size. | |
| 326 | // OBSOLETE | |
| 327 | // OBSOLETE WHICH says which register set corelow suspects this is: | |
| 328 | // OBSOLETE 0 --- the general-purpose register set | |
| 329 | // OBSOLETE 2 --- the floating-point register set | |
| 330 | // OBSOLETE | |
| 331 | // OBSOLETE REG_ADDR isn't used. */ | |
| 332 | // OBSOLETE | |
| 333 | // OBSOLETE static void | |
| 334 | // OBSOLETE fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, | |
| 335 | // OBSOLETE int which, CORE_ADDR reg_addr) | |
| 336 | // OBSOLETE { | |
| 337 | // OBSOLETE | |
| 338 | // OBSOLETE if (which == 0) | |
| 339 | // OBSOLETE { | |
| 340 | // OBSOLETE /* Integer registers */ | |
| 341 | // OBSOLETE | |
| 342 | // OBSOLETE #define cd_regs(n) ((int *)core_reg_sect)[n] | |
| 343 | // OBSOLETE #define regs(n) *((int *) ®isters[REGISTER_BYTE (n)]) | |
| 344 | // OBSOLETE | |
| 345 | // OBSOLETE int i; | |
| 346 | // OBSOLETE for (i = 0; i < FP0_REGNUM; i++) | |
| 347 | // OBSOLETE regs (i) = cd_regs (core_regmap[i]); | |
| 348 | // OBSOLETE } | |
| 349 | // OBSOLETE else if (which == 2) | |
| 350 | // OBSOLETE { | |
| 351 | // OBSOLETE /* Floating point registers */ | |
| 352 | // OBSOLETE | |
| 353 | // OBSOLETE if (core_reg_size >= sizeof (core_env387)) | |
| 354 | // OBSOLETE memcpy (&core_env387, core_reg_sect, core_reg_size); | |
| 355 | // OBSOLETE else | |
| 356 | // OBSOLETE fprintf_unfiltered (gdb_stderr, "Couldn't read float regs from core file\n"); | |
| 357 | // OBSOLETE } | |
| 358 | // OBSOLETE } | |
| 359 | // OBSOLETE \f | |
| 360 | // OBSOLETE | |
| 361 | // OBSOLETE /* Register that we are able to handle i386aix core file formats. | |
| 362 | // OBSOLETE FIXME: is this really bfd_target_unknown_flavour? */ | |
| 363 | // OBSOLETE | |
| 364 | // OBSOLETE static struct core_fns i386aix_core_fns = | |
| 365 | // OBSOLETE { | |
| 366 | // OBSOLETE bfd_target_unknown_flavour, /* core_flavour */ | |
| 367 | // OBSOLETE default_check_format, /* check_format */ | |
| 368 | // OBSOLETE default_core_sniffer, /* core_sniffer */ | |
| 369 | // OBSOLETE fetch_core_registers, /* core_read_registers */ | |
| 370 | // OBSOLETE NULL /* next */ | |
| 371 | // OBSOLETE }; | |
| 372 | // OBSOLETE | |
| 373 | // OBSOLETE void | |
| 374 | // OBSOLETE _initialize_core_i386aix (void) | |
| 375 | // OBSOLETE { | |
| 376 | // OBSOLETE add_core_fns (&i386aix_core_fns); | |
| 377 | // OBSOLETE } |