| 1 | /* OBSOLETE /* Acorn Risc Machine host machine support. */ |
| 2 | /* OBSOLETE Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc. */ |
| 3 | /* OBSOLETE */ |
| 4 | /* OBSOLETE This file is part of GDB. */ |
| 5 | /* OBSOLETE */ |
| 6 | /* OBSOLETE This program is free software; you can redistribute it and/or modify */ |
| 7 | /* OBSOLETE it under the terms of the GNU General Public License as published by */ |
| 8 | /* OBSOLETE the Free Software Foundation; either version 2 of the License, or */ |
| 9 | /* OBSOLETE (at your option) any later version. */ |
| 10 | /* OBSOLETE */ |
| 11 | /* OBSOLETE This program is distributed in the hope that it will be useful, */ |
| 12 | /* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */ |
| 13 | /* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ |
| 14 | /* OBSOLETE GNU General Public License for more details. */ |
| 15 | /* OBSOLETE */ |
| 16 | /* OBSOLETE You should have received a copy of the GNU General Public License */ |
| 17 | /* OBSOLETE along with this program; if not, write to the Free Software */ |
| 18 | /* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */ |
| 19 | /* OBSOLETE Boston, MA 02111-1307, USA. *x/ */ |
| 20 | /* OBSOLETE */ |
| 21 | /* OBSOLETE #include "defs.h" */ |
| 22 | /* OBSOLETE #include "frame.h" */ |
| 23 | /* OBSOLETE #include "inferior.h" */ |
| 24 | /* OBSOLETE #include "opcode/arm.h" */ |
| 25 | /* OBSOLETE */ |
| 26 | /* OBSOLETE #include <sys/param.h> */ |
| 27 | /* OBSOLETE #include <sys/dir.h> */ |
| 28 | /* OBSOLETE #include <signal.h> */ |
| 29 | /* OBSOLETE #include <sys/ioctl.h> */ |
| 30 | /* OBSOLETE #include <sys/ptrace.h> */ |
| 31 | /* OBSOLETE #include <machine/reg.h> */ |
| 32 | /* OBSOLETE */ |
| 33 | /* OBSOLETE #define N_TXTADDR(hdr) 0x8000 */ |
| 34 | /* OBSOLETE #define N_DATADDR(hdr) (hdr.a_text + 0x8000) */ |
| 35 | /* OBSOLETE */ |
| 36 | /* OBSOLETE #include "gdbcore.h" */ |
| 37 | /* OBSOLETE */ |
| 38 | /* OBSOLETE #include <sys/user.h> /* After a.out.h *x/ */ |
| 39 | /* OBSOLETE #include <sys/file.h> */ |
| 40 | /* OBSOLETE #include "gdb_stat.h" */ |
| 41 | /* OBSOLETE */ |
| 42 | /* OBSOLETE #include <errno.h> */ |
| 43 | /* OBSOLETE */ |
| 44 | /* OBSOLETE void */ |
| 45 | /* OBSOLETE fetch_inferior_registers (regno) */ |
| 46 | /* OBSOLETE int regno; /* Original value discarded *x/ */ |
| 47 | /* OBSOLETE { */ |
| 48 | /* OBSOLETE register unsigned int regaddr; */ |
| 49 | /* OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; */ |
| 50 | /* OBSOLETE register int i; */ |
| 51 | /* OBSOLETE */ |
| 52 | /* OBSOLETE struct user u; */ |
| 53 | /* OBSOLETE unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */ |
| 54 | /* OBSOLETE offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */ |
| 55 | /* OBSOLETE - KERNEL_U_ADDR; */ |
| 56 | /* OBSOLETE */ |
| 57 | /* OBSOLETE registers_fetched (); */ |
| 58 | /* OBSOLETE */ |
| 59 | /* OBSOLETE for (regno = 0; regno < 16; regno++) */ |
| 60 | /* OBSOLETE { */ |
| 61 | /* OBSOLETE regaddr = offset + regno * 4; */ |
| 62 | /* OBSOLETE *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */ |
| 63 | /* OBSOLETE (PTRACE_ARG3_TYPE) regaddr, 0); */ |
| 64 | /* OBSOLETE if (regno == PC_REGNUM) */ |
| 65 | /* OBSOLETE *(int *) &buf[0] = GET_PC_PART (*(int *) &buf[0]); */ |
| 66 | /* OBSOLETE supply_register (regno, buf); */ |
| 67 | /* OBSOLETE } */ |
| 68 | /* OBSOLETE *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */ |
| 69 | /* OBSOLETE (PTRACE_ARG3_TYPE) (offset + PC * 4), 0); */ |
| 70 | /* OBSOLETE supply_register (PS_REGNUM, buf); /* set virtual register ps same as pc *x/ */ |
| 71 | /* OBSOLETE */ |
| 72 | /* OBSOLETE /* read the floating point registers *x/ */ |
| 73 | /* OBSOLETE offset = (char *) &u.u_fp_regs - (char *) &u; */ |
| 74 | /* OBSOLETE *(int *) buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0); */ |
| 75 | /* OBSOLETE supply_register (FPS_REGNUM, buf); */ |
| 76 | /* OBSOLETE for (regno = 16; regno < 24; regno++) */ |
| 77 | /* OBSOLETE { */ |
| 78 | /* OBSOLETE regaddr = offset + 4 + 12 * (regno - 16); */ |
| 79 | /* OBSOLETE for (i = 0; i < 12; i += sizeof (int)) */ |
| 80 | /* OBSOLETE *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid, */ |
| 81 | /* OBSOLETE (PTRACE_ARG3_TYPE) (regaddr + i), 0); */ |
| 82 | /* OBSOLETE supply_register (regno, buf); */ |
| 83 | /* OBSOLETE } */ |
| 84 | /* OBSOLETE } */ |
| 85 | /* OBSOLETE */ |
| 86 | /* OBSOLETE /* Store our register values back into the inferior. */ |
| 87 | /* OBSOLETE If REGNO is -1, do this for all registers. */ |
| 88 | /* OBSOLETE Otherwise, REGNO specifies which register (so we can save time). *x/ */ |
| 89 | /* OBSOLETE */ |
| 90 | /* OBSOLETE void */ |
| 91 | /* OBSOLETE store_inferior_registers (regno) */ |
| 92 | /* OBSOLETE int regno; */ |
| 93 | /* OBSOLETE { */ |
| 94 | /* OBSOLETE register unsigned int regaddr; */ |
| 95 | /* OBSOLETE char buf[80]; */ |
| 96 | /* OBSOLETE */ |
| 97 | /* OBSOLETE struct user u; */ |
| 98 | /* OBSOLETE unsigned long value; */ |
| 99 | /* OBSOLETE unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */ |
| 100 | /* OBSOLETE offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */ |
| 101 | /* OBSOLETE - KERNEL_U_ADDR; */ |
| 102 | /* OBSOLETE */ |
| 103 | /* OBSOLETE if (regno >= 0) */ |
| 104 | /* OBSOLETE { */ |
| 105 | /* OBSOLETE if (regno >= 16) */ |
| 106 | /* OBSOLETE return; */ |
| 107 | /* OBSOLETE regaddr = offset + 4 * regno; */ |
| 108 | /* OBSOLETE errno = 0; */ |
| 109 | /* OBSOLETE value = read_register (regno); */ |
| 110 | /* OBSOLETE if (regno == PC_REGNUM) */ |
| 111 | /* OBSOLETE value = SET_PC_PART (read_register (PS_REGNUM), value); */ |
| 112 | /* OBSOLETE ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */ |
| 113 | /* OBSOLETE if (errno != 0) */ |
| 114 | /* OBSOLETE { */ |
| 115 | /* OBSOLETE sprintf (buf, "writing register number %d", regno); */ |
| 116 | /* OBSOLETE perror_with_name (buf); */ |
| 117 | /* OBSOLETE } */ |
| 118 | /* OBSOLETE } */ |
| 119 | /* OBSOLETE else */ |
| 120 | /* OBSOLETE for (regno = 0; regno < 15; regno++) */ |
| 121 | /* OBSOLETE { */ |
| 122 | /* OBSOLETE regaddr = offset + regno * 4; */ |
| 123 | /* OBSOLETE errno = 0; */ |
| 124 | /* OBSOLETE value = read_register (regno); */ |
| 125 | /* OBSOLETE if (regno == PC_REGNUM) */ |
| 126 | /* OBSOLETE value = SET_PC_PART (read_register (PS_REGNUM), value); */ |
| 127 | /* OBSOLETE ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */ |
| 128 | /* OBSOLETE if (errno != 0) */ |
| 129 | /* OBSOLETE { */ |
| 130 | /* OBSOLETE sprintf (buf, "writing all regs, number %d", regno); */ |
| 131 | /* OBSOLETE perror_with_name (buf); */ |
| 132 | /* OBSOLETE } */ |
| 133 | /* OBSOLETE } */ |
| 134 | /* OBSOLETE } */ |
| 135 | /* OBSOLETE \f */ |
| 136 | /* OBSOLETE /* Work with core dump and executable files, for GDB. */ |
| 137 | /* OBSOLETE This code would be in corefile.c if it weren't machine-dependent. *x/ */ |
| 138 | /* OBSOLETE */ |
| 139 | /* OBSOLETE /* Structure to describe the chain of shared libraries used */ |
| 140 | /* OBSOLETE by the execfile. */ |
| 141 | /* OBSOLETE e.g. prog shares Xt which shares X11 which shares c. *x/ */ |
| 142 | /* OBSOLETE */ |
| 143 | /* OBSOLETE struct shared_library */ |
| 144 | /* OBSOLETE { */ |
| 145 | /* OBSOLETE struct exec_header header; */ |
| 146 | /* OBSOLETE char name[SHLIBLEN]; */ |
| 147 | /* OBSOLETE CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file *x/ */ |
| 148 | /* OBSOLETE long data_offset; /* offset of data section in file *x/ */ |
| 149 | /* OBSOLETE int chan; /* file descriptor for the file *x/ */ |
| 150 | /* OBSOLETE struct shared_library *shares; /* library this one shares *x/ */ |
| 151 | /* OBSOLETE }; */ |
| 152 | /* OBSOLETE static struct shared_library *shlib = 0; */ |
| 153 | /* OBSOLETE */ |
| 154 | /* OBSOLETE /* Hook for `exec_file_command' command to call. *x/ */ |
| 155 | /* OBSOLETE */ |
| 156 | /* OBSOLETE extern void (*exec_file_display_hook) (); */ |
| 157 | /* OBSOLETE */ |
| 158 | /* OBSOLETE static CORE_ADDR unshared_text_start; */ |
| 159 | /* OBSOLETE */ |
| 160 | /* OBSOLETE /* extended header from exec file (for shared library info) *x/ */ |
| 161 | /* OBSOLETE */ |
| 162 | /* OBSOLETE static struct exec_header exec_header; */ |
| 163 | /* OBSOLETE \f */ |
| 164 | /* OBSOLETE void */ |
| 165 | /* OBSOLETE core_file_command (filename, from_tty) */ |
| 166 | /* OBSOLETE char *filename; */ |
| 167 | /* OBSOLETE int from_tty; */ |
| 168 | /* OBSOLETE { */ |
| 169 | /* OBSOLETE int val; */ |
| 170 | /* OBSOLETE */ |
| 171 | /* OBSOLETE /* Discard all vestiges of any previous core file */ |
| 172 | /* OBSOLETE and mark data and stack spaces as empty. *x/ */ |
| 173 | /* OBSOLETE */ |
| 174 | /* OBSOLETE if (corefile) */ |
| 175 | /* OBSOLETE xfree (corefile); */ |
| 176 | /* OBSOLETE corefile = 0; */ |
| 177 | /* OBSOLETE */ |
| 178 | /* OBSOLETE if (corechan >= 0) */ |
| 179 | /* OBSOLETE close (corechan); */ |
| 180 | /* OBSOLETE corechan = -1; */ |
| 181 | /* OBSOLETE */ |
| 182 | /* OBSOLETE data_start = 0; */ |
| 183 | /* OBSOLETE data_end = 0; */ |
| 184 | /* OBSOLETE stack_start = STACK_END_ADDR; */ |
| 185 | /* OBSOLETE stack_end = STACK_END_ADDR; */ |
| 186 | /* OBSOLETE */ |
| 187 | /* OBSOLETE /* Now, if a new core file was specified, open it and digest it. *x/ */ |
| 188 | /* OBSOLETE */ |
| 189 | /* OBSOLETE if (filename) */ |
| 190 | /* OBSOLETE { */ |
| 191 | /* OBSOLETE filename = tilde_expand (filename); */ |
| 192 | /* OBSOLETE make_cleanup (xfree, filename); */ |
| 193 | /* OBSOLETE */ |
| 194 | /* OBSOLETE if (have_inferior_p ()) */ |
| 195 | /* OBSOLETE error ("To look at a core file, you must kill the program with \"kill\"."); */ |
| 196 | /* OBSOLETE corechan = open (filename, O_RDONLY, 0); */ |
| 197 | /* OBSOLETE if (corechan < 0) */ |
| 198 | /* OBSOLETE perror_with_name (filename); */ |
| 199 | /* OBSOLETE /* 4.2-style (and perhaps also sysV-style) core dump file. *x/ */ |
| 200 | /* OBSOLETE { */ |
| 201 | /* OBSOLETE struct user u; */ |
| 202 | /* OBSOLETE */ |
| 203 | /* OBSOLETE unsigned int reg_offset, fp_reg_offset; */ |
| 204 | /* OBSOLETE */ |
| 205 | /* OBSOLETE val = myread (corechan, &u, sizeof u); */ |
| 206 | /* OBSOLETE if (val < 0) */ |
| 207 | /* OBSOLETE perror_with_name ("Not a core file: reading upage"); */ |
| 208 | /* OBSOLETE if (val != sizeof u) */ |
| 209 | /* OBSOLETE error ("Not a core file: could only read %d bytes", val); */ |
| 210 | /* OBSOLETE */ |
| 211 | /* OBSOLETE /* We are depending on exec_file_command having been called */ |
| 212 | /* OBSOLETE previously to set exec_data_start. Since the executable */ |
| 213 | /* OBSOLETE and the core file share the same text segment, the address */ |
| 214 | /* OBSOLETE of the data segment will be the same in both. *x/ */ |
| 215 | /* OBSOLETE data_start = exec_data_start; */ |
| 216 | /* OBSOLETE */ |
| 217 | /* OBSOLETE data_end = data_start + NBPG * u.u_dsize; */ |
| 218 | /* OBSOLETE stack_start = stack_end - NBPG * u.u_ssize; */ |
| 219 | /* OBSOLETE data_offset = NBPG * UPAGES; */ |
| 220 | /* OBSOLETE stack_offset = NBPG * (UPAGES + u.u_dsize); */ |
| 221 | /* OBSOLETE */ |
| 222 | /* OBSOLETE /* Some machines put an absolute address in here and some put */ |
| 223 | /* OBSOLETE the offset in the upage of the regs. *x/ */ |
| 224 | /* OBSOLETE reg_offset = (int) u.u_ar0; */ |
| 225 | /* OBSOLETE if (reg_offset > NBPG * UPAGES) */ |
| 226 | /* OBSOLETE reg_offset -= KERNEL_U_ADDR; */ |
| 227 | /* OBSOLETE fp_reg_offset = (char *) &u.u_fp_regs - (char *) &u; */ |
| 228 | /* OBSOLETE */ |
| 229 | /* OBSOLETE /* I don't know where to find this info. */ |
| 230 | /* OBSOLETE So, for now, mark it as not available. *x/ */ |
| 231 | /* OBSOLETE N_SET_MAGIC (core_aouthdr, 0); */ |
| 232 | /* OBSOLETE */ |
| 233 | /* OBSOLETE /* Read the register values out of the core file and store */ |
| 234 | /* OBSOLETE them where `read_register' will find them. *x/ */ |
| 235 | /* OBSOLETE */ |
| 236 | /* OBSOLETE { */ |
| 237 | /* OBSOLETE register int regno; */ |
| 238 | /* OBSOLETE */ |
| 239 | /* OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) */ |
| 240 | /* OBSOLETE { */ |
| 241 | /* OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; */ |
| 242 | /* OBSOLETE */ |
| 243 | /* OBSOLETE if (regno < 16) */ |
| 244 | /* OBSOLETE val = lseek (corechan, reg_offset + 4 * regno, 0); */ |
| 245 | /* OBSOLETE else if (regno < 24) */ |
| 246 | /* OBSOLETE val = lseek (corechan, fp_reg_offset + 4 + 12 * (regno - 24), 0); */ |
| 247 | /* OBSOLETE else if (regno == 24) */ |
| 248 | /* OBSOLETE val = lseek (corechan, fp_reg_offset, 0); */ |
| 249 | /* OBSOLETE else if (regno == 25) */ |
| 250 | /* OBSOLETE val = lseek (corechan, reg_offset + 4 * PC, 0); */ |
| 251 | /* OBSOLETE if (val < 0 */ |
| 252 | /* OBSOLETE || (val = myread (corechan, buf, sizeof buf)) < 0) */ |
| 253 | /* OBSOLETE { */ |
| 254 | /* OBSOLETE char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) */ |
| 255 | /* OBSOLETE + 30); */ |
| 256 | /* OBSOLETE strcpy (buffer, "Reading register "); */ |
| 257 | /* OBSOLETE strcat (buffer, REGISTER_NAME (regno)); */ |
| 258 | /* OBSOLETE */ |
| 259 | /* OBSOLETE perror_with_name (buffer); */ |
| 260 | /* OBSOLETE } */ |
| 261 | /* OBSOLETE */ |
| 262 | /* OBSOLETE if (regno == PC_REGNUM) */ |
| 263 | /* OBSOLETE *(int *) buf = GET_PC_PART (*(int *) buf); */ |
| 264 | /* OBSOLETE supply_register (regno, buf); */ |
| 265 | /* OBSOLETE } */ |
| 266 | /* OBSOLETE } */ |
| 267 | /* OBSOLETE } */ |
| 268 | /* OBSOLETE if (filename[0] == '/') */ |
| 269 | /* OBSOLETE corefile = savestring (filename, strlen (filename)); */ |
| 270 | /* OBSOLETE else */ |
| 271 | /* OBSOLETE { */ |
| 272 | /* OBSOLETE corefile = concat (current_directory, "/", filename, NULL); */ |
| 273 | /* OBSOLETE } */ |
| 274 | /* OBSOLETE */ |
| 275 | /* OBSOLETE flush_cached_frames (); */ |
| 276 | /* OBSOLETE select_frame (get_current_frame (), 0); */ |
| 277 | /* OBSOLETE validate_files (); */ |
| 278 | /* OBSOLETE } */ |
| 279 | /* OBSOLETE else if (from_tty) */ |
| 280 | /* OBSOLETE printf ("No core file now.\n"); */ |
| 281 | /* OBSOLETE } */ |
| 282 | /* OBSOLETE */ |
| 283 | /* OBSOLETE #if 0 */ |
| 284 | /* OBSOLETE /* Work with core dump and executable files, for GDB. */ |
| 285 | /* OBSOLETE This code would be in corefile.c if it weren't machine-dependent. *x/ */ |
| 286 | /* OBSOLETE */ |
| 287 | /* OBSOLETE /* Structure to describe the chain of shared libraries used */ |
| 288 | /* OBSOLETE by the execfile. */ |
| 289 | /* OBSOLETE e.g. prog shares Xt which shares X11 which shares c. *x/ */ |
| 290 | /* OBSOLETE */ |
| 291 | /* OBSOLETE struct shared_library */ |
| 292 | /* OBSOLETE { */ |
| 293 | /* OBSOLETE struct exec_header header; */ |
| 294 | /* OBSOLETE char name[SHLIBLEN]; */ |
| 295 | /* OBSOLETE CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file *x/ */ |
| 296 | /* OBSOLETE long data_offset; /* offset of data section in file *x/ */ |
| 297 | /* OBSOLETE int chan; /* file descriptor for the file *x/ */ |
| 298 | /* OBSOLETE struct shared_library *shares; /* library this one shares *x/ */ |
| 299 | /* OBSOLETE }; */ |
| 300 | /* OBSOLETE static struct shared_library *shlib = 0; */ |
| 301 | /* OBSOLETE */ |
| 302 | /* OBSOLETE /* Hook for `exec_file_command' command to call. *x/ */ |
| 303 | /* OBSOLETE */ |
| 304 | /* OBSOLETE extern void (*exec_file_display_hook) (); */ |
| 305 | /* OBSOLETE */ |
| 306 | /* OBSOLETE static CORE_ADDR unshared_text_start; */ |
| 307 | /* OBSOLETE */ |
| 308 | /* OBSOLETE /* extended header from exec file (for shared library info) *x/ */ |
| 309 | /* OBSOLETE */ |
| 310 | /* OBSOLETE static struct exec_header exec_header; */ |
| 311 | /* OBSOLETE */ |
| 312 | /* OBSOLETE void */ |
| 313 | /* OBSOLETE exec_file_command (filename, from_tty) */ |
| 314 | /* OBSOLETE char *filename; */ |
| 315 | /* OBSOLETE int from_tty; */ |
| 316 | /* OBSOLETE { */ |
| 317 | /* OBSOLETE int val; */ |
| 318 | /* OBSOLETE */ |
| 319 | /* OBSOLETE /* Eliminate all traces of old exec file. */ |
| 320 | /* OBSOLETE Mark text segment as empty. *x/ */ |
| 321 | /* OBSOLETE */ |
| 322 | /* OBSOLETE if (execfile) */ |
| 323 | /* OBSOLETE xfree (execfile); */ |
| 324 | /* OBSOLETE execfile = 0; */ |
| 325 | /* OBSOLETE data_start = 0; */ |
| 326 | /* OBSOLETE data_end -= exec_data_start; */ |
| 327 | /* OBSOLETE text_start = 0; */ |
| 328 | /* OBSOLETE unshared_text_start = 0; */ |
| 329 | /* OBSOLETE text_end = 0; */ |
| 330 | /* OBSOLETE exec_data_start = 0; */ |
| 331 | /* OBSOLETE exec_data_end = 0; */ |
| 332 | /* OBSOLETE if (execchan >= 0) */ |
| 333 | /* OBSOLETE close (execchan); */ |
| 334 | /* OBSOLETE execchan = -1; */ |
| 335 | /* OBSOLETE if (shlib) */ |
| 336 | /* OBSOLETE { */ |
| 337 | /* OBSOLETE close_shared_library (shlib); */ |
| 338 | /* OBSOLETE shlib = 0; */ |
| 339 | /* OBSOLETE } */ |
| 340 | /* OBSOLETE */ |
| 341 | /* OBSOLETE /* Now open and digest the file the user requested, if any. *x/ */ |
| 342 | /* OBSOLETE */ |
| 343 | /* OBSOLETE if (filename) */ |
| 344 | /* OBSOLETE { */ |
| 345 | /* OBSOLETE filename = tilde_expand (filename); */ |
| 346 | /* OBSOLETE make_cleanup (xfree, filename); */ |
| 347 | /* OBSOLETE */ |
| 348 | /* OBSOLETE execchan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0, */ |
| 349 | /* OBSOLETE &execfile); */ |
| 350 | /* OBSOLETE if (execchan < 0) */ |
| 351 | /* OBSOLETE perror_with_name (filename); */ |
| 352 | /* OBSOLETE */ |
| 353 | /* OBSOLETE { */ |
| 354 | /* OBSOLETE struct stat st_exec; */ |
| 355 | /* OBSOLETE */ |
| 356 | /* OBSOLETE #ifdef HEADER_SEEK_FD */ |
| 357 | /* OBSOLETE HEADER_SEEK_FD (execchan); */ |
| 358 | /* OBSOLETE #endif */ |
| 359 | /* OBSOLETE */ |
| 360 | /* OBSOLETE val = myread (execchan, &exec_header, sizeof exec_header); */ |
| 361 | /* OBSOLETE exec_aouthdr = exec_header.a_exec; */ |
| 362 | /* OBSOLETE */ |
| 363 | /* OBSOLETE if (val < 0) */ |
| 364 | /* OBSOLETE perror_with_name (filename); */ |
| 365 | /* OBSOLETE */ |
| 366 | /* OBSOLETE text_start = 0x8000; */ |
| 367 | /* OBSOLETE */ |
| 368 | /* OBSOLETE /* Look for shared library if needed *x/ */ |
| 369 | /* OBSOLETE if (exec_header.a_exec.a_magic & MF_USES_SL) */ |
| 370 | /* OBSOLETE shlib = open_shared_library (exec_header.a_shlibname, text_start); */ |
| 371 | /* OBSOLETE */ |
| 372 | /* OBSOLETE text_offset = N_TXTOFF (exec_aouthdr); */ |
| 373 | /* OBSOLETE exec_data_offset = N_TXTOFF (exec_aouthdr) + exec_aouthdr.a_text; */ |
| 374 | /* OBSOLETE */ |
| 375 | /* OBSOLETE if (shlib) */ |
| 376 | /* OBSOLETE { */ |
| 377 | /* OBSOLETE unshared_text_start = shared_text_end (shlib) & ~0x7fff; */ |
| 378 | /* OBSOLETE stack_start = shlib->header.a_exec.a_sldatabase; */ |
| 379 | /* OBSOLETE stack_end = STACK_END_ADDR; */ |
| 380 | /* OBSOLETE } */ |
| 381 | /* OBSOLETE else */ |
| 382 | /* OBSOLETE unshared_text_start = 0x8000; */ |
| 383 | /* OBSOLETE text_end = unshared_text_start + exec_aouthdr.a_text; */ |
| 384 | /* OBSOLETE */ |
| 385 | /* OBSOLETE exec_data_start = unshared_text_start + exec_aouthdr.a_text; */ |
| 386 | /* OBSOLETE exec_data_end = exec_data_start + exec_aouthdr.a_data; */ |
| 387 | /* OBSOLETE */ |
| 388 | /* OBSOLETE data_start = exec_data_start; */ |
| 389 | /* OBSOLETE data_end += exec_data_start; */ |
| 390 | /* OBSOLETE */ |
| 391 | /* OBSOLETE fstat (execchan, &st_exec); */ |
| 392 | /* OBSOLETE exec_mtime = st_exec.st_mtime; */ |
| 393 | /* OBSOLETE } */ |
| 394 | /* OBSOLETE */ |
| 395 | /* OBSOLETE validate_files (); */ |
| 396 | /* OBSOLETE } */ |
| 397 | /* OBSOLETE else if (from_tty) */ |
| 398 | /* OBSOLETE printf ("No executable file now.\n"); */ |
| 399 | /* OBSOLETE */ |
| 400 | /* OBSOLETE /* Tell display code (if any) about the changed file name. *x/ */ |
| 401 | /* OBSOLETE if (exec_file_display_hook) */ |
| 402 | /* OBSOLETE (*exec_file_display_hook) (filename); */ |
| 403 | /* OBSOLETE } */ |
| 404 | /* OBSOLETE #endif */ |
| 405 | /* OBSOLETE */ |
| 406 | /* OBSOLETE #if 0 */ |
| 407 | /* OBSOLETE /* Read from the program's memory (except for inferior processes). */ |
| 408 | /* OBSOLETE This function is misnamed, since it only reads, never writes; and */ |
| 409 | /* OBSOLETE since it will use the core file and/or executable file as necessary. */ |
| 410 | /* OBSOLETE */ |
| 411 | /* OBSOLETE It should be extended to write as well as read, FIXME, for patching files. */ |
| 412 | /* OBSOLETE */ |
| 413 | /* OBSOLETE Return 0 if address could be read, EIO if addresss out of bounds. *x/ */ |
| 414 | /* OBSOLETE */ |
| 415 | /* OBSOLETE int */ |
| 416 | /* OBSOLETE xfer_core_file (memaddr, myaddr, len) */ |
| 417 | /* OBSOLETE CORE_ADDR memaddr; */ |
| 418 | /* OBSOLETE char *myaddr; */ |
| 419 | /* OBSOLETE int len; */ |
| 420 | /* OBSOLETE { */ |
| 421 | /* OBSOLETE register int i; */ |
| 422 | /* OBSOLETE register int val; */ |
| 423 | /* OBSOLETE int xferchan; */ |
| 424 | /* OBSOLETE char **xferfile; */ |
| 425 | /* OBSOLETE int fileptr; */ |
| 426 | /* OBSOLETE int returnval = 0; */ |
| 427 | /* OBSOLETE */ |
| 428 | /* OBSOLETE while (len > 0) */ |
| 429 | /* OBSOLETE { */ |
| 430 | /* OBSOLETE xferfile = 0; */ |
| 431 | /* OBSOLETE xferchan = 0; */ |
| 432 | /* OBSOLETE */ |
| 433 | /* OBSOLETE /* Determine which file the next bunch of addresses reside in, */ |
| 434 | /* OBSOLETE and where in the file. Set the file's read/write pointer */ |
| 435 | /* OBSOLETE to point at the proper place for the desired address */ |
| 436 | /* OBSOLETE and set xferfile and xferchan for the correct file. */ |
| 437 | /* OBSOLETE */ |
| 438 | /* OBSOLETE If desired address is nonexistent, leave them zero. */ |
| 439 | /* OBSOLETE */ |
| 440 | /* OBSOLETE i is set to the number of bytes that can be handled */ |
| 441 | /* OBSOLETE along with the next address. */ |
| 442 | /* OBSOLETE */ |
| 443 | /* OBSOLETE We put the most likely tests first for efficiency. *x/ */ |
| 444 | /* OBSOLETE */ |
| 445 | /* OBSOLETE /* Note that if there is no core file */ |
| 446 | /* OBSOLETE data_start and data_end are equal. *x/ */ |
| 447 | /* OBSOLETE if (memaddr >= data_start && memaddr < data_end) */ |
| 448 | /* OBSOLETE { */ |
| 449 | /* OBSOLETE i = min (len, data_end - memaddr); */ |
| 450 | /* OBSOLETE fileptr = memaddr - data_start + data_offset; */ |
| 451 | /* OBSOLETE xferfile = &corefile; */ |
| 452 | /* OBSOLETE xferchan = corechan; */ |
| 453 | /* OBSOLETE } */ |
| 454 | /* OBSOLETE /* Note that if there is no core file */ |
| 455 | /* OBSOLETE stack_start and stack_end define the shared library data. *x/ */ |
| 456 | /* OBSOLETE else if (memaddr >= stack_start && memaddr < stack_end) */ |
| 457 | /* OBSOLETE { */ |
| 458 | /* OBSOLETE if (corechan < 0) */ |
| 459 | /* OBSOLETE { */ |
| 460 | /* OBSOLETE struct shared_library *lib; */ |
| 461 | /* OBSOLETE for (lib = shlib; lib; lib = lib->shares) */ |
| 462 | /* OBSOLETE if (memaddr >= lib->header.a_exec.a_sldatabase && */ |
| 463 | /* OBSOLETE memaddr < lib->header.a_exec.a_sldatabase + */ |
| 464 | /* OBSOLETE lib->header.a_exec.a_data) */ |
| 465 | /* OBSOLETE break; */ |
| 466 | /* OBSOLETE if (lib) */ |
| 467 | /* OBSOLETE { */ |
| 468 | /* OBSOLETE i = min (len, lib->header.a_exec.a_sldatabase + */ |
| 469 | /* OBSOLETE lib->header.a_exec.a_data - memaddr); */ |
| 470 | /* OBSOLETE fileptr = lib->data_offset + memaddr - */ |
| 471 | /* OBSOLETE lib->header.a_exec.a_sldatabase; */ |
| 472 | /* OBSOLETE xferfile = execfile; */ |
| 473 | /* OBSOLETE xferchan = lib->chan; */ |
| 474 | /* OBSOLETE } */ |
| 475 | /* OBSOLETE } */ |
| 476 | /* OBSOLETE else */ |
| 477 | /* OBSOLETE { */ |
| 478 | /* OBSOLETE i = min (len, stack_end - memaddr); */ |
| 479 | /* OBSOLETE fileptr = memaddr - stack_start + stack_offset; */ |
| 480 | /* OBSOLETE xferfile = &corefile; */ |
| 481 | /* OBSOLETE xferchan = corechan; */ |
| 482 | /* OBSOLETE } */ |
| 483 | /* OBSOLETE } */ |
| 484 | /* OBSOLETE else if (corechan < 0 */ |
| 485 | /* OBSOLETE && memaddr >= exec_data_start && memaddr < exec_data_end) */ |
| 486 | /* OBSOLETE { */ |
| 487 | /* OBSOLETE i = min (len, exec_data_end - memaddr); */ |
| 488 | /* OBSOLETE fileptr = memaddr - exec_data_start + exec_data_offset; */ |
| 489 | /* OBSOLETE xferfile = &execfile; */ |
| 490 | /* OBSOLETE xferchan = execchan; */ |
| 491 | /* OBSOLETE } */ |
| 492 | /* OBSOLETE else if (memaddr >= text_start && memaddr < text_end) */ |
| 493 | /* OBSOLETE { */ |
| 494 | /* OBSOLETE struct shared_library *lib; */ |
| 495 | /* OBSOLETE for (lib = shlib; lib; lib = lib->shares) */ |
| 496 | /* OBSOLETE if (memaddr >= lib->text_start && */ |
| 497 | /* OBSOLETE memaddr < lib->text_start + lib->header.a_exec.a_text) */ |
| 498 | /* OBSOLETE break; */ |
| 499 | /* OBSOLETE if (lib) */ |
| 500 | /* OBSOLETE { */ |
| 501 | /* OBSOLETE i = min (len, lib->header.a_exec.a_text + */ |
| 502 | /* OBSOLETE lib->text_start - memaddr); */ |
| 503 | /* OBSOLETE fileptr = memaddr - lib->text_start + text_offset; */ |
| 504 | /* OBSOLETE xferfile = &execfile; */ |
| 505 | /* OBSOLETE xferchan = lib->chan; */ |
| 506 | /* OBSOLETE } */ |
| 507 | /* OBSOLETE else */ |
| 508 | /* OBSOLETE { */ |
| 509 | /* OBSOLETE i = min (len, text_end - memaddr); */ |
| 510 | /* OBSOLETE fileptr = memaddr - unshared_text_start + text_offset; */ |
| 511 | /* OBSOLETE xferfile = &execfile; */ |
| 512 | /* OBSOLETE xferchan = execchan; */ |
| 513 | /* OBSOLETE } */ |
| 514 | /* OBSOLETE } */ |
| 515 | /* OBSOLETE else if (memaddr < text_start) */ |
| 516 | /* OBSOLETE { */ |
| 517 | /* OBSOLETE i = min (len, text_start - memaddr); */ |
| 518 | /* OBSOLETE } */ |
| 519 | /* OBSOLETE else if (memaddr >= text_end */ |
| 520 | /* OBSOLETE && memaddr < (corechan >= 0 ? data_start : exec_data_start)) */ |
| 521 | /* OBSOLETE { */ |
| 522 | /* OBSOLETE i = min (len, data_start - memaddr); */ |
| 523 | /* OBSOLETE } */ |
| 524 | /* OBSOLETE else if (corechan >= 0 */ |
| 525 | /* OBSOLETE && memaddr >= data_end && memaddr < stack_start) */ |
| 526 | /* OBSOLETE { */ |
| 527 | /* OBSOLETE i = min (len, stack_start - memaddr); */ |
| 528 | /* OBSOLETE } */ |
| 529 | /* OBSOLETE else if (corechan < 0 && memaddr >= exec_data_end) */ |
| 530 | /* OBSOLETE { */ |
| 531 | /* OBSOLETE i = min (len, -memaddr); */ |
| 532 | /* OBSOLETE } */ |
| 533 | /* OBSOLETE else if (memaddr >= stack_end && stack_end != 0) */ |
| 534 | /* OBSOLETE { */ |
| 535 | /* OBSOLETE i = min (len, -memaddr); */ |
| 536 | /* OBSOLETE } */ |
| 537 | /* OBSOLETE else */ |
| 538 | /* OBSOLETE { */ |
| 539 | /* OBSOLETE /* Address did not classify into one of the known ranges. */ |
| 540 | /* OBSOLETE This shouldn't happen; we catch the endpoints. *x/ */ |
| 541 | /* OBSOLETE internal_error ("Bad case logic in xfer_core_file."); */ |
| 542 | /* OBSOLETE } */ |
| 543 | /* OBSOLETE */ |
| 544 | /* OBSOLETE /* Now we know which file to use. */ |
| 545 | /* OBSOLETE Set up its pointer and transfer the data. *x/ */ |
| 546 | /* OBSOLETE if (xferfile) */ |
| 547 | /* OBSOLETE { */ |
| 548 | /* OBSOLETE if (*xferfile == 0) */ |
| 549 | /* OBSOLETE if (xferfile == &execfile) */ |
| 550 | /* OBSOLETE error ("No program file to examine."); */ |
| 551 | /* OBSOLETE else */ |
| 552 | /* OBSOLETE error ("No core dump file or running program to examine."); */ |
| 553 | /* OBSOLETE val = lseek (xferchan, fileptr, 0); */ |
| 554 | /* OBSOLETE if (val < 0) */ |
| 555 | /* OBSOLETE perror_with_name (*xferfile); */ |
| 556 | /* OBSOLETE val = myread (xferchan, myaddr, i); */ |
| 557 | /* OBSOLETE if (val < 0) */ |
| 558 | /* OBSOLETE perror_with_name (*xferfile); */ |
| 559 | /* OBSOLETE } */ |
| 560 | /* OBSOLETE /* If this address is for nonexistent memory, */ |
| 561 | /* OBSOLETE read zeros if reading, or do nothing if writing. */ |
| 562 | /* OBSOLETE Actually, we never right. *x/ */ |
| 563 | /* OBSOLETE else */ |
| 564 | /* OBSOLETE { */ |
| 565 | /* OBSOLETE memset (myaddr, '\0', i); */ |
| 566 | /* OBSOLETE returnval = EIO; */ |
| 567 | /* OBSOLETE } */ |
| 568 | /* OBSOLETE */ |
| 569 | /* OBSOLETE memaddr += i; */ |
| 570 | /* OBSOLETE myaddr += i; */ |
| 571 | /* OBSOLETE len -= i; */ |
| 572 | /* OBSOLETE } */ |
| 573 | /* OBSOLETE return returnval; */ |
| 574 | /* OBSOLETE } */ |
| 575 | /* OBSOLETE #endif */ |