| 1 | #!/bin/sh |
| 2 | # This is a shell archive. |
| 3 | # Run the file through sh to extract its contents. |
| 4 | # shar: Shell Archiver |
| 5 | # Run the following text with /bin/sh to create: |
| 6 | # Remote_Makefile |
| 7 | # remote_gutils.c |
| 8 | # remote_inflow.c |
| 9 | # remote_server.c |
| 10 | # remote_utils.c |
| 11 | # This archive created: Fri Jun 23 17:06:55 1989 |
| 12 | cat << \SHAR_EOF > Remote_Makefile |
| 13 | # Makefile for the remote server for GDB, the GNU debugger. |
| 14 | # Copyright (C) 1986, 1989 Free Software Foundation, Inc. |
| 15 | # |
| 16 | # This file is part of GDB. |
| 17 | # |
| 18 | # GDB is free software; you can redistribute it and/or modify |
| 19 | # it under the terms of the GNU General Public License as published by |
| 20 | # the Free Software Foundation; either version 1, or (at your option) |
| 21 | # any later version. |
| 22 | # |
| 23 | # GDB is distributed in the hope that it will be useful, |
| 24 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 25 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 26 | # GNU General Public License for more details. |
| 27 | # |
| 28 | # You should have received a copy of the GNU General Public License |
| 29 | # along with GDB; see the file COPYING. If not, write to |
| 30 | # the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 31 | |
| 32 | CFLAGS = -g |
| 33 | CC = cc |
| 34 | |
| 35 | SERVER = remote_server.o\ |
| 36 | remote_inflow.o\ |
| 37 | remote_utils.o\ |
| 38 | remote_gutils.o |
| 39 | |
| 40 | prog : $(SERVER) |
| 41 | $(CC) -g -o serve $(SERVER) |
| 42 | SHAR_EOF |
| 43 | cat << \SHAR_EOF > remote_gutils.c |
| 44 | /* General utility routines for the remote server for GDB, the GNU debugger. |
| 45 | Copyright (C) 1986, 1989 Free Software Foundation, Inc. |
| 46 | |
| 47 | This file is part of GDB. |
| 48 | |
| 49 | GDB is free software; you can redistribute it and/or modify |
| 50 | it under the terms of the GNU General Public License as published by |
| 51 | the Free Software Foundation; either version 1, or (at your option) |
| 52 | any later version. |
| 53 | |
| 54 | GDB is distributed in the hope that it will be useful, |
| 55 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 56 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 57 | GNU General Public License for more details. |
| 58 | |
| 59 | You should have received a copy of the GNU General Public License |
| 60 | along with GDB; see the file COPYING. If not, write to |
| 61 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 62 | |
| 63 | #include <stdio.h> |
| 64 | #include <sys/ioctl.h> |
| 65 | #include "defs.h" |
| 66 | |
| 67 | void error (); |
| 68 | void fatal (); |
| 69 | |
| 70 | /* Chain of cleanup actions established with make_cleanup, |
| 71 | to be executed if an error happens. */ |
| 72 | |
| 73 | static struct cleanup *cleanup_chain; |
| 74 | |
| 75 | /* Nonzero means a quit has been requested. */ |
| 76 | |
| 77 | int quit_flag; |
| 78 | |
| 79 | /* Nonzero means quit immediately if Control-C is typed now, |
| 80 | rather than waiting until QUIT is executed. */ |
| 81 | |
| 82 | int immediate_quit; |
| 83 | \f |
| 84 | /* Add a new cleanup to the cleanup_chain, |
| 85 | and return the previous chain pointer |
| 86 | to be passed later to do_cleanups or discard_cleanups. |
| 87 | Args are FUNCTION to clean up with, and ARG to pass to it. */ |
| 88 | |
| 89 | struct cleanup * |
| 90 | make_cleanup (function, arg) |
| 91 | void (*function) (); |
| 92 | int arg; |
| 93 | { |
| 94 | register struct cleanup *new |
| 95 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
| 96 | register struct cleanup *old_chain = cleanup_chain; |
| 97 | |
| 98 | new->next = cleanup_chain; |
| 99 | new->function = function; |
| 100 | new->arg = arg; |
| 101 | cleanup_chain = new; |
| 102 | |
| 103 | return old_chain; |
| 104 | } |
| 105 | |
| 106 | /* Discard cleanups and do the actions they describe |
| 107 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ |
| 108 | |
| 109 | void |
| 110 | do_cleanups (old_chain) |
| 111 | register struct cleanup *old_chain; |
| 112 | { |
| 113 | register struct cleanup *ptr; |
| 114 | while ((ptr = cleanup_chain) != old_chain) |
| 115 | { |
| 116 | (*ptr->function) (ptr->arg); |
| 117 | cleanup_chain = ptr->next; |
| 118 | free (ptr); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | /* Discard cleanups, not doing the actions they describe, |
| 123 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ |
| 124 | |
| 125 | void |
| 126 | discard_cleanups (old_chain) |
| 127 | register struct cleanup *old_chain; |
| 128 | { |
| 129 | register struct cleanup *ptr; |
| 130 | while ((ptr = cleanup_chain) != old_chain) |
| 131 | { |
| 132 | cleanup_chain = ptr->next; |
| 133 | free (ptr); |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | /* This function is useful for cleanups. |
| 138 | Do |
| 139 | |
| 140 | foo = xmalloc (...); |
| 141 | old_chain = make_cleanup (free_current_contents, &foo); |
| 142 | |
| 143 | to arrange to free the object thus allocated. */ |
| 144 | |
| 145 | void |
| 146 | free_current_contents (location) |
| 147 | char **location; |
| 148 | { |
| 149 | free (*location); |
| 150 | } |
| 151 | \f |
| 152 | /* Generally useful subroutines used throughout the program. */ |
| 153 | |
| 154 | /* Like malloc but get error if no storage available. */ |
| 155 | |
| 156 | char * |
| 157 | xmalloc (size) |
| 158 | long size; |
| 159 | { |
| 160 | register char *val = (char *) malloc (size); |
| 161 | if (!val) |
| 162 | fatal ("virtual memory exhausted.", 0); |
| 163 | return val; |
| 164 | } |
| 165 | |
| 166 | /* Like realloc but get error if no storage available. */ |
| 167 | |
| 168 | char * |
| 169 | xrealloc (ptr, size) |
| 170 | char *ptr; |
| 171 | long size; |
| 172 | { |
| 173 | register char *val = (char *) realloc (ptr, size); |
| 174 | if (!val) |
| 175 | fatal ("virtual memory exhausted.", 0); |
| 176 | return val; |
| 177 | } |
| 178 | |
| 179 | /* Print the system error message for errno, and also mention STRING |
| 180 | as the file name for which the error was encountered. |
| 181 | Then return to command level. */ |
| 182 | |
| 183 | void |
| 184 | perror_with_name (string) |
| 185 | char *string; |
| 186 | { |
| 187 | extern int sys_nerr; |
| 188 | extern char *sys_errlist[]; |
| 189 | extern int errno; |
| 190 | char *err; |
| 191 | char *combined; |
| 192 | |
| 193 | if (errno < sys_nerr) |
| 194 | err = sys_errlist[errno]; |
| 195 | else |
| 196 | err = "unknown error"; |
| 197 | |
| 198 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); |
| 199 | strcpy (combined, string); |
| 200 | strcat (combined, ": "); |
| 201 | strcat (combined, err); |
| 202 | |
| 203 | error ("%s.", combined); |
| 204 | } |
| 205 | |
| 206 | /* Print the system error message for ERRCODE, and also mention STRING |
| 207 | as the file name for which the error was encountered. */ |
| 208 | |
| 209 | void |
| 210 | print_sys_errmsg (string, errcode) |
| 211 | char *string; |
| 212 | int errcode; |
| 213 | { |
| 214 | extern int sys_nerr; |
| 215 | extern char *sys_errlist[]; |
| 216 | char *err; |
| 217 | char *combined; |
| 218 | |
| 219 | if (errcode < sys_nerr) |
| 220 | err = sys_errlist[errcode]; |
| 221 | else |
| 222 | err = "unknown error"; |
| 223 | |
| 224 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); |
| 225 | strcpy (combined, string); |
| 226 | strcat (combined, ": "); |
| 227 | strcat (combined, err); |
| 228 | |
| 229 | printf ("%s.\n", combined); |
| 230 | } |
| 231 | |
| 232 | void |
| 233 | quit () |
| 234 | { |
| 235 | fflush (stdout); |
| 236 | ioctl (fileno (stdout), TIOCFLUSH, 0); |
| 237 | error ("Quit"); |
| 238 | } |
| 239 | |
| 240 | /* Control C comes here */ |
| 241 | |
| 242 | void |
| 243 | request_quit () |
| 244 | { |
| 245 | quit_flag = 1; |
| 246 | if (immediate_quit) |
| 247 | quit (); |
| 248 | } |
| 249 | |
| 250 | /* Print an error message and return to command level. |
| 251 | STRING is the error message, used as a fprintf string, |
| 252 | and ARG is passed as an argument to it. */ |
| 253 | |
| 254 | void |
| 255 | error (string, arg1, arg2, arg3) |
| 256 | char *string; |
| 257 | int arg1, arg2, arg3; |
| 258 | { |
| 259 | fflush (stdout); |
| 260 | fprintf (stderr, string, arg1, arg2, arg3); |
| 261 | fprintf (stderr, "\n"); |
| 262 | /************return_to_top_level ();************/ |
| 263 | } |
| 264 | |
| 265 | /* Print an error message and exit reporting failure. |
| 266 | This is for a error that we cannot continue from. |
| 267 | STRING and ARG are passed to fprintf. */ |
| 268 | |
| 269 | void |
| 270 | fatal (string, arg) |
| 271 | char *string; |
| 272 | int arg; |
| 273 | { |
| 274 | fprintf (stderr, "gdb: "); |
| 275 | fprintf (stderr, string, arg); |
| 276 | fprintf (stderr, "\n"); |
| 277 | exit (1); |
| 278 | } |
| 279 | |
| 280 | /* Make a copy of the string at PTR with SIZE characters |
| 281 | (and add a null character at the end in the copy). |
| 282 | Uses malloc to get the space. Returns the address of the copy. */ |
| 283 | |
| 284 | char * |
| 285 | savestring (ptr, size) |
| 286 | char *ptr; |
| 287 | int size; |
| 288 | { |
| 289 | register char *p = (char *) xmalloc (size + 1); |
| 290 | bcopy (ptr, p, size); |
| 291 | p[size] = 0; |
| 292 | return p; |
| 293 | } |
| 294 | |
| 295 | char * |
| 296 | concat (s1, s2, s3) |
| 297 | char *s1, *s2, *s3; |
| 298 | { |
| 299 | register int len = strlen (s1) + strlen (s2) + strlen (s3) + 1; |
| 300 | register char *val = (char *) xmalloc (len); |
| 301 | strcpy (val, s1); |
| 302 | strcat (val, s2); |
| 303 | strcat (val, s3); |
| 304 | return val; |
| 305 | } |
| 306 | |
| 307 | void |
| 308 | print_spaces (n, file) |
| 309 | register int n; |
| 310 | register FILE *file; |
| 311 | { |
| 312 | while (n-- > 0) |
| 313 | fputc (' ', file); |
| 314 | } |
| 315 | |
| 316 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
| 317 | Takes three args which are given to printf to print the question. |
| 318 | The first, a control string, should end in "? ". |
| 319 | It should not say how to answer, because we do that. */ |
| 320 | |
| 321 | int |
| 322 | query (ctlstr, arg1, arg2) |
| 323 | char *ctlstr; |
| 324 | { |
| 325 | register int answer; |
| 326 | |
| 327 | /* Automatically answer "yes" if input is not from a terminal. */ |
| 328 | /***********if (!input_from_terminal_p ()) |
| 329 | return 1; *************************/ |
| 330 | |
| 331 | while (1) |
| 332 | { |
| 333 | printf (ctlstr, arg1, arg2); |
| 334 | printf ("(y or n) "); |
| 335 | fflush (stdout); |
| 336 | answer = fgetc (stdin); |
| 337 | clearerr (stdin); /* in case of C-d */ |
| 338 | if (answer != '\n') |
| 339 | while (fgetc (stdin) != '\n') clearerr (stdin); |
| 340 | if (answer >= 'a') |
| 341 | answer -= 040; |
| 342 | if (answer == 'Y') |
| 343 | return 1; |
| 344 | if (answer == 'N') |
| 345 | return 0; |
| 346 | printf ("Please answer y or n.\n"); |
| 347 | } |
| 348 | } |
| 349 | \f |
| 350 | /* Parse a C escape sequence. STRING_PTR points to a variable |
| 351 | containing a pointer to the string to parse. That pointer |
| 352 | is updated past the characters we use. The value of the |
| 353 | escape sequence is returned. |
| 354 | |
| 355 | A negative value means the sequence \ newline was seen, |
| 356 | which is supposed to be equivalent to nothing at all. |
| 357 | |
| 358 | If \ is followed by a null character, we return a negative |
| 359 | value and leave the string pointer pointing at the null character. |
| 360 | |
| 361 | If \ is followed by 000, we return 0 and leave the string pointer |
| 362 | after the zeros. A value of 0 does not mean end of string. */ |
| 363 | |
| 364 | int |
| 365 | parse_escape (string_ptr) |
| 366 | char **string_ptr; |
| 367 | { |
| 368 | register int c = *(*string_ptr)++; |
| 369 | switch (c) |
| 370 | { |
| 371 | case 'a': |
| 372 | return '\a'; |
| 373 | case 'b': |
| 374 | return '\b'; |
| 375 | case 'e': |
| 376 | return 033; |
| 377 | case 'f': |
| 378 | return '\f'; |
| 379 | case 'n': |
| 380 | return '\n'; |
| 381 | case 'r': |
| 382 | return '\r'; |
| 383 | case 't': |
| 384 | return '\t'; |
| 385 | case 'v': |
| 386 | return '\v'; |
| 387 | case '\n': |
| 388 | return -2; |
| 389 | case 0: |
| 390 | (*string_ptr)--; |
| 391 | return 0; |
| 392 | case '^': |
| 393 | c = *(*string_ptr)++; |
| 394 | if (c == '\\') |
| 395 | c = parse_escape (string_ptr); |
| 396 | if (c == '?') |
| 397 | return 0177; |
| 398 | return (c & 0200) | (c & 037); |
| 399 | |
| 400 | case '0': |
| 401 | case '1': |
| 402 | case '2': |
| 403 | case '3': |
| 404 | case '4': |
| 405 | case '5': |
| 406 | case '6': |
| 407 | case '7': |
| 408 | { |
| 409 | register int i = c - '0'; |
| 410 | register int count = 0; |
| 411 | while (++count < 3) |
| 412 | { |
| 413 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') |
| 414 | { |
| 415 | i *= 8; |
| 416 | i += c - '0'; |
| 417 | } |
| 418 | else |
| 419 | { |
| 420 | (*string_ptr)--; |
| 421 | break; |
| 422 | } |
| 423 | } |
| 424 | return i; |
| 425 | } |
| 426 | default: |
| 427 | return c; |
| 428 | } |
| 429 | } |
| 430 | \f |
| 431 | void |
| 432 | printchar (ch, stream) |
| 433 | unsigned char ch; |
| 434 | FILE *stream; |
| 435 | { |
| 436 | register int c = ch; |
| 437 | if (c < 040 || c >= 0177) |
| 438 | { |
| 439 | if (c == '\n') |
| 440 | fprintf (stream, "\\n"); |
| 441 | else if (c == '\b') |
| 442 | fprintf (stream, "\\b"); |
| 443 | else if (c == '\t') |
| 444 | fprintf (stream, "\\t"); |
| 445 | else if (c == '\f') |
| 446 | fprintf (stream, "\\f"); |
| 447 | else if (c == '\r') |
| 448 | fprintf (stream, "\\r"); |
| 449 | else if (c == 033) |
| 450 | fprintf (stream, "\\e"); |
| 451 | else if (c == '\a') |
| 452 | fprintf (stream, "\\a"); |
| 453 | else |
| 454 | fprintf (stream, "\\%03o", c); |
| 455 | } |
| 456 | else |
| 457 | { |
| 458 | if (c == '\\' || c == '"' || c == '\'') |
| 459 | fputc ('\\', stream); |
| 460 | fputc (c, stream); |
| 461 | } |
| 462 | } |
| 463 | SHAR_EOF |
| 464 | cat << \SHAR_EOF > remote_inflow.c |
| 465 | /* Low level interface to ptrace, for GDB when running under Unix. |
| 466 | Copyright (C) 1986, 1987 Free Software Foundation, Inc. |
| 467 | */ |
| 468 | |
| 469 | #include "defs.h" |
| 470 | #include "param.h" |
| 471 | #include "wait.h" |
| 472 | #include "frame.h" |
| 473 | #include "inferior.h" |
| 474 | /*************************** |
| 475 | #include "initialize.h" |
| 476 | ****************************/ |
| 477 | |
| 478 | #include <stdio.h> |
| 479 | #include <sys/param.h> |
| 480 | #include <sys/dir.h> |
| 481 | #include <sys/user.h> |
| 482 | #include <signal.h> |
| 483 | #include <sys/ioctl.h> |
| 484 | #include <sgtty.h> |
| 485 | #include <fcntl.h> |
| 486 | |
| 487 | /***************Begin MY defs*********************/ |
| 488 | int quit_flag = 0; |
| 489 | char registers[REGISTER_BYTES]; |
| 490 | |
| 491 | /* Index within `registers' of the first byte of the space for |
| 492 | register N. */ |
| 493 | |
| 494 | |
| 495 | char buf2[MAX_REGISTER_RAW_SIZE]; |
| 496 | /***************End MY defs*********************/ |
| 497 | |
| 498 | #ifdef NEW_SUN_PTRACE |
| 499 | #include <sys/ptrace.h> |
| 500 | #include <machine/reg.h> |
| 501 | #endif |
| 502 | |
| 503 | extern char **environ; |
| 504 | extern int errno; |
| 505 | extern int inferior_pid; |
| 506 | void error(), quit(), perror_with_name(); |
| 507 | int query(); |
| 508 | void supply_register(), write_register(); |
| 509 | CORE_ADDR read_register(); |
| 510 | |
| 511 | /* Nonzero if we are debugging an attached outside process |
| 512 | rather than an inferior. */ |
| 513 | |
| 514 | |
| 515 | /* Start an inferior process and returns its pid. |
| 516 | ALLARGS is a vector of program-name and args. |
| 517 | ENV is the environment vector to pass. */ |
| 518 | |
| 519 | int |
| 520 | create_inferior (allargs, env) |
| 521 | char **allargs; |
| 522 | char **env; |
| 523 | { |
| 524 | int pid; |
| 525 | extern int sys_nerr; |
| 526 | extern char *sys_errlist[]; |
| 527 | extern int errno; |
| 528 | |
| 529 | /* exec is said to fail if the executable is open. */ |
| 530 | /****************close_exec_file ();*****************/ |
| 531 | |
| 532 | pid = vfork (); |
| 533 | if (pid < 0) |
| 534 | perror_with_name ("vfork"); |
| 535 | |
| 536 | if (pid == 0) |
| 537 | { |
| 538 | /* Run inferior in a separate process group. */ |
| 539 | setpgrp (getpid (), getpid ()); |
| 540 | |
| 541 | /* Not needed on Sun, at least, and loses there |
| 542 | because it clobbers the superior. */ |
| 543 | /*??? signal (SIGQUIT, SIG_DFL); |
| 544 | signal (SIGINT, SIG_DFL); */ |
| 545 | |
| 546 | errno = 0; |
| 547 | ptrace (0); |
| 548 | |
| 549 | execle ("/bin/sh", "sh", "-c", allargs, 0, env); |
| 550 | |
| 551 | fprintf (stderr, "Cannot exec /bin/sh: %s.\n", |
| 552 | errno < sys_nerr ? sys_errlist[errno] : "unknown error"); |
| 553 | fflush (stderr); |
| 554 | _exit (0177); |
| 555 | } |
| 556 | return pid; |
| 557 | } |
| 558 | |
| 559 | /* Kill the inferior process. Make us have no inferior. */ |
| 560 | |
| 561 | kill_inferior () |
| 562 | { |
| 563 | if (inferior_pid == 0) |
| 564 | return; |
| 565 | ptrace (8, inferior_pid, 0, 0); |
| 566 | wait (0); |
| 567 | /*************inferior_died ();****VK**************/ |
| 568 | } |
| 569 | |
| 570 | /* Resume execution of the inferior process. |
| 571 | If STEP is nonzero, single-step it. |
| 572 | If SIGNAL is nonzero, give it that signal. */ |
| 573 | |
| 574 | unsigned char |
| 575 | resume (step, signal,status) |
| 576 | int step; |
| 577 | int signal; |
| 578 | char *status; |
| 579 | { |
| 580 | int pid ; |
| 581 | WAITTYPE w; |
| 582 | |
| 583 | errno = 0; |
| 584 | ptrace (step ? 9 : 7, inferior_pid, 1, signal); |
| 585 | if (errno) |
| 586 | perror_with_name ("ptrace"); |
| 587 | pid = wait(&w); |
| 588 | if(pid != inferior_pid) |
| 589 | perror_with_name ("wait"); |
| 590 | |
| 591 | if(WIFEXITED(w)) |
| 592 | { |
| 593 | printf("\nchild exited with retcode = %x \n",WRETCODE(w)); |
| 594 | *status = 'E'; |
| 595 | return((unsigned char) WRETCODE(w)); |
| 596 | } |
| 597 | else if(!WIFSTOPPED(w)) |
| 598 | { |
| 599 | printf("\nchild did terminated with signal = %x \n",WTERMSIG(w)); |
| 600 | *status = 'T'; |
| 601 | return((unsigned char) WTERMSIG(w)); |
| 602 | } |
| 603 | else |
| 604 | { |
| 605 | printf("\nchild stopped with signal = %x \n",WSTOPSIG(w)); |
| 606 | *status = 'S'; |
| 607 | return((unsigned char) WSTOPSIG(w)); |
| 608 | } |
| 609 | |
| 610 | } |
| 611 | |
| 612 | |
| 613 | #ifdef NEW_SUN_PTRACE |
| 614 | |
| 615 | void |
| 616 | fetch_inferior_registers () |
| 617 | { |
| 618 | struct regs inferior_registers; |
| 619 | struct fp_status inferior_fp_registers; |
| 620 | extern char registers[]; |
| 621 | |
| 622 | ptrace (PTRACE_GETREGS, inferior_pid, &inferior_registers); |
| 623 | if (errno) |
| 624 | perror_with_name ("ptrace"); |
| 625 | /**********debugging begin **********/ |
| 626 | print_some_registers(&inferior_registers); |
| 627 | /**********debugging end **********/ |
| 628 | ptrace (PTRACE_GETFPREGS, inferior_pid, &inferior_fp_registers); |
| 629 | if (errno) |
| 630 | perror_with_name ("ptrace"); |
| 631 | |
| 632 | bcopy (&inferior_registers, registers, 16 * 4); |
| 633 | bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], |
| 634 | sizeof inferior_fp_registers.fps_regs); |
| 635 | *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; |
| 636 | *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc; |
| 637 | bcopy (&inferior_fp_registers.fps_control, |
| 638 | ®isters[REGISTER_BYTE (FPC_REGNUM)], |
| 639 | sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs); |
| 640 | } |
| 641 | |
| 642 | /* Store our register values back into the inferior. |
| 643 | If REGNO is -1, do this for all registers. |
| 644 | Otherwise, REGNO specifies which register (so we can save time). */ |
| 645 | |
| 646 | store_inferior_registers (regno) |
| 647 | int regno; |
| 648 | { |
| 649 | struct regs inferior_registers; |
| 650 | struct fp_status inferior_fp_registers; |
| 651 | extern char registers[]; |
| 652 | |
| 653 | bcopy (registers, &inferior_registers, 16 * 4); |
| 654 | bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, |
| 655 | sizeof inferior_fp_registers.fps_regs); |
| 656 | inferior_registers.r_ps = *(int *)®isters[REGISTER_BYTE (PS_REGNUM)]; |
| 657 | inferior_registers.r_pc = *(int *)®isters[REGISTER_BYTE (PC_REGNUM)]; |
| 658 | bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)], |
| 659 | &inferior_fp_registers.fps_control, |
| 660 | sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs); |
| 661 | |
| 662 | ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers); |
| 663 | if (errno) |
| 664 | perror_with_name ("ptrace"); |
| 665 | ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers); |
| 666 | if (errno) |
| 667 | perror_with_name ("ptrace"); |
| 668 | } |
| 669 | |
| 670 | #endif /* not NEW_SUN_PTRACE */ |
| 671 | |
| 672 | |
| 673 | /* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory |
| 674 | in the NEW_SUN_PTRACE case. |
| 675 | It ought to be straightforward. But it appears that writing did |
| 676 | not write the data that I specified. I cannot understand where |
| 677 | it got the data that it actually did write. */ |
| 678 | |
| 679 | /* Copy LEN bytes from inferior's memory starting at MEMADDR |
| 680 | to debugger memory starting at MYADDR. */ |
| 681 | |
| 682 | read_inferior_memory (memaddr, myaddr, len) |
| 683 | CORE_ADDR memaddr; |
| 684 | char *myaddr; |
| 685 | int len; |
| 686 | { |
| 687 | register int i; |
| 688 | /* Round starting address down to longword boundary. */ |
| 689 | register CORE_ADDR addr = memaddr & - sizeof (int); |
| 690 | /* Round ending address up; get number of longwords that makes. */ |
| 691 | register int count |
| 692 | = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); |
| 693 | /* Allocate buffer of that many longwords. */ |
| 694 | register int *buffer = (int *) alloca (count * sizeof (int)); |
| 695 | |
| 696 | /* Read all the longwords */ |
| 697 | for (i = 0; i < count; i++, addr += sizeof (int)) |
| 698 | { |
| 699 | buffer[i] = ptrace (1, inferior_pid, addr, 0); |
| 700 | } |
| 701 | |
| 702 | /* Copy appropriate bytes out of the buffer. */ |
| 703 | bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); |
| 704 | } |
| 705 | |
| 706 | /* Copy LEN bytes of data from debugger memory at MYADDR |
| 707 | to inferior's memory at MEMADDR. |
| 708 | On failure (cannot write the inferior) |
| 709 | returns the value of errno. */ |
| 710 | |
| 711 | int |
| 712 | write_inferior_memory (memaddr, myaddr, len) |
| 713 | CORE_ADDR memaddr; |
| 714 | char *myaddr; |
| 715 | int len; |
| 716 | { |
| 717 | register int i; |
| 718 | /* Round starting address down to longword boundary. */ |
| 719 | register CORE_ADDR addr = memaddr & - sizeof (int); |
| 720 | /* Round ending address up; get number of longwords that makes. */ |
| 721 | register int count |
| 722 | = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); |
| 723 | /* Allocate buffer of that many longwords. */ |
| 724 | register int *buffer = (int *) alloca (count * sizeof (int)); |
| 725 | extern int errno; |
| 726 | |
| 727 | /* Fill start and end extra bytes of buffer with existing memory data. */ |
| 728 | |
| 729 | buffer[0] = ptrace (1, inferior_pid, addr, 0); |
| 730 | |
| 731 | if (count > 1) |
| 732 | { |
| 733 | buffer[count - 1] |
| 734 | = ptrace (1, inferior_pid, |
| 735 | addr + (count - 1) * sizeof (int), 0); |
| 736 | } |
| 737 | |
| 738 | /* Copy data to be written over corresponding part of buffer */ |
| 739 | |
| 740 | bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); |
| 741 | |
| 742 | /* Write the entire buffer. */ |
| 743 | |
| 744 | for (i = 0; i < count; i++, addr += sizeof (int)) |
| 745 | { |
| 746 | errno = 0; |
| 747 | ptrace (4, inferior_pid, addr, buffer[i]); |
| 748 | if (errno) |
| 749 | return errno; |
| 750 | } |
| 751 | |
| 752 | return 0; |
| 753 | } |
| 754 | \f |
| 755 | void |
| 756 | try_writing_regs_command () |
| 757 | { |
| 758 | register int i; |
| 759 | register int value; |
| 760 | extern int errno; |
| 761 | |
| 762 | if (inferior_pid == 0) |
| 763 | error ("There is no inferior process now."); |
| 764 | |
| 765 | fetch_inferior_registers(); |
| 766 | for (i = 0;i<18 ; i ++) |
| 767 | { |
| 768 | QUIT; |
| 769 | errno = 0; |
| 770 | value = read_register(i); |
| 771 | write_register ( i, value); |
| 772 | if (errno == 0) |
| 773 | { |
| 774 | printf (" Succeeded with register %d; value 0x%x (%d).\n", |
| 775 | i, value, value); |
| 776 | } |
| 777 | else |
| 778 | printf (" Failed with register %d.\n", i); |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | void |
| 783 | initialize () |
| 784 | { |
| 785 | |
| 786 | inferior_pid = 0; |
| 787 | |
| 788 | |
| 789 | } |
| 790 | |
| 791 | |
| 792 | /* Return the contents of register REGNO, |
| 793 | regarding it as an integer. */ |
| 794 | |
| 795 | CORE_ADDR |
| 796 | read_register (regno) |
| 797 | int regno; |
| 798 | { |
| 799 | /* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */ |
| 800 | return *(int *) ®isters[REGISTER_BYTE (regno)]; |
| 801 | } |
| 802 | |
| 803 | /* Store VALUE in the register number REGNO, regarded as an integer. */ |
| 804 | |
| 805 | void |
| 806 | write_register (regno, val) |
| 807 | int regno, val; |
| 808 | { |
| 809 | /* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */ |
| 810 | *(int *) ®isters[REGISTER_BYTE (regno)] = val; |
| 811 | |
| 812 | if (have_inferior_p ()) |
| 813 | store_inferior_registers (regno); |
| 814 | } |
| 815 | |
| 816 | |
| 817 | int |
| 818 | have_inferior_p () |
| 819 | { |
| 820 | return inferior_pid != 0; |
| 821 | } |
| 822 | |
| 823 | print_some_registers(regs) |
| 824 | int regs[]; |
| 825 | { |
| 826 | register int i; |
| 827 | for (i = 0; i < 18; i++) { |
| 828 | printf("reg[%d] = %x\n", i, regs[i]); |
| 829 | } |
| 830 | } |
| 831 | |
| 832 | SHAR_EOF |
| 833 | cat << \SHAR_EOF > remote_server.c |
| 834 | /* Main code for remote server for GDB, the GNU Debugger. |
| 835 | Copyright (C) 1989 Free Software Foundation, Inc. |
| 836 | |
| 837 | This file is part of GDB. |
| 838 | |
| 839 | GDB is free software; you can redistribute it and/or modify |
| 840 | it under the terms of the GNU General Public License as published by |
| 841 | the Free Software Foundation; either version 1, or (at your option) |
| 842 | any later version. |
| 843 | |
| 844 | GDB is distributed in the hope that it will be useful, |
| 845 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 846 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 847 | GNU General Public License for more details. |
| 848 | |
| 849 | You should have received a copy of the GNU General Public License |
| 850 | along with GDB; see the file COPYING. If not, write to |
| 851 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 852 | |
| 853 | #include "param.h" |
| 854 | #include <stdio.h> |
| 855 | |
| 856 | void read_inferior_memory(), fetch_inferior_registers(); |
| 857 | unsigned char resume(); |
| 858 | void kill_inferior(); |
| 859 | void initialize(), try_writing_regs_command(); |
| 860 | int create_inferior(), read_register(); |
| 861 | |
| 862 | extern char registers[]; |
| 863 | int inferior_pid; |
| 864 | extern char **environ; |
| 865 | |
| 866 | /* Descriptor for I/O to remote machine. */ |
| 867 | int remote_desc; |
| 868 | int kiodebug = 0; |
| 869 | int remote_debugging; |
| 870 | |
| 871 | void remote_send (); |
| 872 | void putpkt (); |
| 873 | void getpkt (); |
| 874 | void remote_open(); |
| 875 | void write_ok(); |
| 876 | void write_enn(); |
| 877 | void convert_ascii_to_int(); |
| 878 | void convert_int_to_ascii(); |
| 879 | void prepare_resume_reply(); |
| 880 | void decode_m_packet(); |
| 881 | void decode_M_packet(); |
| 882 | |
| 883 | |
| 884 | main(argc,argv) |
| 885 | int argc; char *argv[]; |
| 886 | { |
| 887 | char ch,status, own_buf[2000], mem_buf[2000]; |
| 888 | int i=0; |
| 889 | unsigned char signal; |
| 890 | unsigned int mem_addr, len; |
| 891 | |
| 892 | initialize(); |
| 893 | printf("\nwill open serial link\n"); |
| 894 | remote_open("/dev/ttya",0); |
| 895 | |
| 896 | if(argc < 2) |
| 897 | { |
| 898 | printf("Enter name of program to be run with command line args\n"); |
| 899 | gets(own_buf); |
| 900 | inferior_pid = create_inferior(own_buf,environ); |
| 901 | printf("\nProcess %s created; pid = %d\n",own_buf,inferior_pid); |
| 902 | } |
| 903 | else |
| 904 | { |
| 905 | inferior_pid = create_inferior(argv[1],environ); |
| 906 | printf("\nProcess %s created; pid = %d\n",argv[1],inferior_pid); |
| 907 | } |
| 908 | |
| 909 | do { |
| 910 | getpkt(own_buf); |
| 911 | printf("\nPacket received is>:%s\n",own_buf); |
| 912 | i = 0; |
| 913 | ch = own_buf[i++]; |
| 914 | switch (ch) { |
| 915 | case 'h': /**********This is only for tweaking the gdb+ program *******/ |
| 916 | signal = resume(1,0,&status); |
| 917 | prepare_resume_reply(own_buf,status,signal); |
| 918 | break; |
| 919 | /*************end tweak*************************************/ |
| 920 | |
| 921 | case 'g': fetch_inferior_registers(); |
| 922 | convert_int_to_ascii(registers,own_buf,REGISTER_BYTES); |
| 923 | break; |
| 924 | case 'G': convert_ascii_to_int(&own_buf[1],registers,REGISTER_BYTES); |
| 925 | if(store_inferior_registers(-1)==0) |
| 926 | write_ok(own_buf); |
| 927 | else |
| 928 | write_enn(own_buf); |
| 929 | break; |
| 930 | case 'm': decode_m_packet(&own_buf[1],&mem_addr,&len); |
| 931 | read_inferior_memory(mem_addr,mem_buf,len); |
| 932 | convert_int_to_ascii(mem_buf,own_buf,len); |
| 933 | break; |
| 934 | case 'M': decode_M_packet(&own_buf[1],&mem_addr,&len,mem_buf); |
| 935 | if(write_inferior_memory(mem_addr,mem_buf,len)==0) |
| 936 | write_ok(own_buf); |
| 937 | else |
| 938 | write_enn(own_buf); |
| 939 | break; |
| 940 | case 'c': signal = resume(0,0,&status); |
| 941 | printf("\nSignal received is >: %0x \n",signal); |
| 942 | prepare_resume_reply(own_buf,status,signal); |
| 943 | break; |
| 944 | case 's': signal = resume(1,0,&status); |
| 945 | prepare_resume_reply(own_buf,status,signal); |
| 946 | break; |
| 947 | case 'k': kill_inferior(); |
| 948 | sprintf(own_buf,"q"); |
| 949 | putpkt(own_buf); |
| 950 | printf("\nObtained kill request...terminating\n"); |
| 951 | close(remote_desc); |
| 952 | exit(0); |
| 953 | case 't': try_writing_regs_command(); |
| 954 | own_buf[0] = '\0'; |
| 955 | break; |
| 956 | default : printf("\nUnknown option chosen by master\n"); |
| 957 | write_enn(own_buf); |
| 958 | break; |
| 959 | } |
| 960 | |
| 961 | putpkt(own_buf); |
| 962 | } while(1) ; |
| 963 | |
| 964 | close(remote_desc); |
| 965 | /** now get out of here**/ |
| 966 | printf("\nFinished reading data from serial link - Bye!\n"); |
| 967 | exit(0); |
| 968 | |
| 969 | } |
| 970 | |
| 971 | SHAR_EOF |
| 972 | cat << \SHAR_EOF > remote_utils.c |
| 973 | /* Remote utility routines for the remote server for GDB, the GNU debugger. |
| 974 | Copyright (C) 1986, 1989 Free Software Foundation, Inc. |
| 975 | |
| 976 | This file is part of GDB. |
| 977 | |
| 978 | GDB is free software; you can redistribute it and/or modify |
| 979 | it under the terms of the GNU General Public License as published by |
| 980 | the Free Software Foundation; either version 1, or (at your option) |
| 981 | any later version. |
| 982 | |
| 983 | GDB is distributed in the hope that it will be useful, |
| 984 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 985 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 986 | GNU General Public License for more details. |
| 987 | |
| 988 | You should have received a copy of the GNU General Public License |
| 989 | along with GDB; see the file COPYING. If not, write to |
| 990 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 991 | |
| 992 | #include "param.h" |
| 993 | #include <stdio.h> |
| 994 | #include <signal.h> |
| 995 | #include <sys/wait.h> |
| 996 | #include <sys/ioctl.h> |
| 997 | #include <a.out.h> |
| 998 | #include <sys/file.h> |
| 999 | #include <sgtty.h> |
| 1000 | |
| 1001 | extern int remote_desc; |
| 1002 | extern int remote_debugging; |
| 1003 | extern int kiodebug; |
| 1004 | |
| 1005 | void remote_open(); |
| 1006 | void remote_send(); |
| 1007 | void putpkt(); |
| 1008 | void getpkt(); |
| 1009 | |
| 1010 | void write_ok(); |
| 1011 | void write_enn(); |
| 1012 | void convert_ascii_to_int(); |
| 1013 | void convert_int_to_ascii(); |
| 1014 | void prepare_resume_reply(); |
| 1015 | |
| 1016 | /* Open a connection to a remote debugger. |
| 1017 | NAME is the filename used for communication. */ |
| 1018 | |
| 1019 | void |
| 1020 | remote_open (name, from_tty) |
| 1021 | char *name; |
| 1022 | int from_tty; |
| 1023 | { |
| 1024 | struct sgttyb sg; |
| 1025 | |
| 1026 | remote_debugging = 0; |
| 1027 | |
| 1028 | remote_desc = open (name, O_RDWR); |
| 1029 | if (remote_desc < 0) |
| 1030 | printf("\ncould not open remote device\n"); |
| 1031 | |
| 1032 | ioctl (remote_desc, TIOCGETP, &sg); |
| 1033 | sg.sg_flags = RAW; |
| 1034 | ioctl (remote_desc, TIOCSETP, &sg); |
| 1035 | |
| 1036 | if (from_tty) |
| 1037 | printf ("Remote debugging using %s\n", name); |
| 1038 | remote_debugging = 1; |
| 1039 | } |
| 1040 | |
| 1041 | /* Convert hex digit A to a number. */ |
| 1042 | |
| 1043 | static int |
| 1044 | fromhex (a) |
| 1045 | int a; |
| 1046 | { |
| 1047 | if (a >= '0' && a <= '9') |
| 1048 | return a - '0'; |
| 1049 | else if (a >= 'a' && a <= 'f') |
| 1050 | return a - 'a' + 10; |
| 1051 | else |
| 1052 | perror ("Reply contains invalid hex digit"); |
| 1053 | } |
| 1054 | |
| 1055 | /* Convert number NIB to a hex digit. */ |
| 1056 | |
| 1057 | static int |
| 1058 | tohex (nib) |
| 1059 | int nib; |
| 1060 | { |
| 1061 | if (nib < 10) |
| 1062 | return '0'+nib; |
| 1063 | else |
| 1064 | return 'a'+nib-10; |
| 1065 | } |
| 1066 | |
| 1067 | /* Send the command in BUF to the remote machine, |
| 1068 | and read the reply into BUF. |
| 1069 | Report an error if we get an error reply. */ |
| 1070 | |
| 1071 | void |
| 1072 | remote_send (buf) |
| 1073 | char *buf; |
| 1074 | { |
| 1075 | putpkt (buf); |
| 1076 | getpkt (buf); |
| 1077 | |
| 1078 | if (buf[0] == 'E') |
| 1079 | perror ("Remote failure reply: %s", buf); |
| 1080 | } |
| 1081 | |
| 1082 | /* Send a packet to the remote machine, with error checking. |
| 1083 | The data of the packet is in BUF. */ |
| 1084 | |
| 1085 | void |
| 1086 | putpkt (buf) |
| 1087 | char *buf; |
| 1088 | { |
| 1089 | int i; |
| 1090 | unsigned char csum = 0; |
| 1091 | char buf2[500]; |
| 1092 | char buf3[1]; |
| 1093 | int cnt = strlen (buf); |
| 1094 | char *p; |
| 1095 | |
| 1096 | if (kiodebug) |
| 1097 | fprintf (stderr, "Sending packet: %s\n", buf); |
| 1098 | |
| 1099 | /* Copy the packet into buffer BUF2, encapsulating it |
| 1100 | and giving it a checksum. */ |
| 1101 | |
| 1102 | p = buf2; |
| 1103 | *p++ = '$'; |
| 1104 | |
| 1105 | for (i = 0; i < cnt; i++) |
| 1106 | { |
| 1107 | csum += buf[i]; |
| 1108 | *p++ = buf[i]; |
| 1109 | } |
| 1110 | *p++ = '#'; |
| 1111 | *p++ = tohex ((csum >> 4) & 0xf); |
| 1112 | *p++ = tohex (csum & 0xf); |
| 1113 | |
| 1114 | /* Send it over and over until we get a positive ack. */ |
| 1115 | |
| 1116 | do { |
| 1117 | write (remote_desc, buf2, p - buf2); |
| 1118 | read (remote_desc, buf3, 1); |
| 1119 | } while (buf3[0] != '+'); |
| 1120 | } |
| 1121 | |
| 1122 | static int |
| 1123 | readchar () |
| 1124 | { |
| 1125 | char buf[1]; |
| 1126 | while (read (remote_desc, buf, 1) != 1) ; |
| 1127 | return buf[0] & 0x7f; |
| 1128 | } |
| 1129 | |
| 1130 | /* Read a packet from the remote machine, with error checking, |
| 1131 | and store it in BUF. */ |
| 1132 | |
| 1133 | void |
| 1134 | getpkt (buf) |
| 1135 | char *buf; |
| 1136 | { |
| 1137 | char *bp; |
| 1138 | unsigned char csum, c, c1, c2; |
| 1139 | extern kiodebug; |
| 1140 | |
| 1141 | while (1) |
| 1142 | { |
| 1143 | csum = 0; |
| 1144 | while ((c = readchar()) != '$'); |
| 1145 | |
| 1146 | bp = buf; |
| 1147 | while (1) |
| 1148 | { |
| 1149 | c = readchar (); |
| 1150 | if (c == '#') |
| 1151 | break; |
| 1152 | *bp++ = c; |
| 1153 | csum += c; |
| 1154 | } |
| 1155 | *bp = 0; |
| 1156 | |
| 1157 | c1 = fromhex (readchar ()); |
| 1158 | c2 = fromhex (readchar ()); |
| 1159 | if (csum == (c1 << 4) + c2) |
| 1160 | break; |
| 1161 | |
| 1162 | printf ("Bad checksum, sentsum=0x%x, csum=0x%x, buf=%s\n", |
| 1163 | (c1 << 4) + c2, csum, buf); |
| 1164 | write (remote_desc, "-", 1); |
| 1165 | } |
| 1166 | |
| 1167 | write (remote_desc, "+", 1); |
| 1168 | |
| 1169 | if (kiodebug) |
| 1170 | fprintf (stderr,"Packet received :%s\n", buf); |
| 1171 | } |
| 1172 | |
| 1173 | |
| 1174 | void |
| 1175 | write_ok(buf) |
| 1176 | char *buf; |
| 1177 | { |
| 1178 | buf[0] = 'O'; |
| 1179 | buf[1] = 'k'; |
| 1180 | buf[2] = '\0'; |
| 1181 | } |
| 1182 | |
| 1183 | void |
| 1184 | write_enn(buf) |
| 1185 | char *buf; |
| 1186 | { |
| 1187 | buf[0] = 'E'; |
| 1188 | buf[1] = 'N'; |
| 1189 | buf[2] = 'N'; |
| 1190 | buf[3] = '\0'; |
| 1191 | } |
| 1192 | |
| 1193 | void |
| 1194 | convert_int_to_ascii(from,to,n) |
| 1195 | char *from, *to; int n; |
| 1196 | { |
| 1197 | int nib ; |
| 1198 | char ch; |
| 1199 | while( n-- ) |
| 1200 | { |
| 1201 | ch = *from++; |
| 1202 | nib = ((ch & 0xf0) >> 4)& 0x0f; |
| 1203 | *to++ = tohex(nib); |
| 1204 | nib = ch & 0x0f; |
| 1205 | *to++ = tohex(nib); |
| 1206 | } |
| 1207 | *to++ = 0; |
| 1208 | } |
| 1209 | |
| 1210 | |
| 1211 | void |
| 1212 | convert_ascii_to_int(from,to,n) |
| 1213 | char *from, *to; int n; |
| 1214 | { |
| 1215 | int nib1,nib2 ; |
| 1216 | while( n-- ) |
| 1217 | { |
| 1218 | nib1 = fromhex(*from++); |
| 1219 | nib2 = fromhex(*from++); |
| 1220 | *to++ = (((nib1 & 0x0f)<< 4)& 0xf0) | (nib2 & 0x0f); |
| 1221 | } |
| 1222 | } |
| 1223 | |
| 1224 | void |
| 1225 | prepare_resume_reply(buf,status,signal) |
| 1226 | char *buf ,status; |
| 1227 | unsigned char signal; |
| 1228 | { |
| 1229 | int nib; |
| 1230 | char ch; |
| 1231 | |
| 1232 | *buf++ = 'S'; |
| 1233 | *buf++ = status; |
| 1234 | nib = ((signal & 0xf0) >> 4) ; |
| 1235 | *buf++ = tohex(nib); |
| 1236 | nib = signal & 0x0f; |
| 1237 | *buf++ = tohex(nib); |
| 1238 | *buf++ = 0; |
| 1239 | } |
| 1240 | |
| 1241 | void |
| 1242 | decode_m_packet(from,mem_addr_ptr,len_ptr) |
| 1243 | char *from; |
| 1244 | unsigned int *mem_addr_ptr, *len_ptr; |
| 1245 | { |
| 1246 | int i = 0, j = 0 ; |
| 1247 | char ch; |
| 1248 | *mem_addr_ptr = *len_ptr = 0; |
| 1249 | /************debugging begin************/ |
| 1250 | printf("\nIn decode_m_packet"); |
| 1251 | /************debugging end************/ |
| 1252 | |
| 1253 | while((ch = from[i++]) != ',') |
| 1254 | { |
| 1255 | *mem_addr_ptr = *mem_addr_ptr << 4; |
| 1256 | *mem_addr_ptr |= fromhex(ch) & 0x0f; |
| 1257 | } |
| 1258 | /************debugging begin************/ |
| 1259 | printf("\nFinished mem_addr part"); |
| 1260 | /************debugging end************/ |
| 1261 | |
| 1262 | for(j=0; j < 4; j++) |
| 1263 | { |
| 1264 | if((ch = from[i++]) == 0) |
| 1265 | break; |
| 1266 | *len_ptr = *len_ptr << 4; |
| 1267 | *len_ptr |= fromhex(ch) & 0x0f; |
| 1268 | } |
| 1269 | /************debugging begin************/ |
| 1270 | printf("\nFinished len_ptr part"); |
| 1271 | /************debugging end************/ |
| 1272 | } |
| 1273 | |
| 1274 | void |
| 1275 | decode_M_packet(from,mem_addr_ptr,len_ptr,to) |
| 1276 | char *from, *to; |
| 1277 | unsigned int *mem_addr_ptr, *len_ptr; |
| 1278 | { |
| 1279 | int i = 0, j = 0 ; |
| 1280 | char ch; |
| 1281 | *mem_addr_ptr = *len_ptr = 0; |
| 1282 | /************debugging begin************/ |
| 1283 | printf("\nIn decode_M_packet"); |
| 1284 | /************debugging end************/ |
| 1285 | |
| 1286 | while((ch = from[i++]) != ',') |
| 1287 | { |
| 1288 | *mem_addr_ptr = *mem_addr_ptr << 4; |
| 1289 | *mem_addr_ptr |= fromhex(ch) & 0x0f; |
| 1290 | } |
| 1291 | /************debugging begin************/ |
| 1292 | printf("\nFinished mem_addr part: memaddr = %x",*mem_addr_ptr); |
| 1293 | /************debugging end************/ |
| 1294 | |
| 1295 | while((ch = from[i++]) != ':') |
| 1296 | { |
| 1297 | *len_ptr = *len_ptr << 4; |
| 1298 | *len_ptr |= fromhex(ch) & 0x0f; |
| 1299 | } |
| 1300 | /************debugging begin************/ |
| 1301 | printf("\nFinished len_ptr part: len = %d",*len_ptr); |
| 1302 | /************debugging end************/ |
| 1303 | |
| 1304 | convert_ascii_to_int(&from[i++],to,*len_ptr); |
| 1305 | |
| 1306 | /************debugging begin************/ |
| 1307 | printf("\nmembuf : %x",*(int *)to); |
| 1308 | /************debugging end************/ |
| 1309 | } |
| 1310 | |
| 1311 | SHAR_EOF |
| 1312 | # End of shell archive |
| 1313 | exit 0 |