gdb/main.c

   1 /* Top level stuff for GDB, the GNU debugger.
   2    Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 1999
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include "defs.h"
  22 #include "top.h"
  23 #include "target.h"
  24 #include "inferior.h"
  25 #include "call-cmds.h"
  26 #ifdef HAVE_UNISTD_H
  27 #include <unistd.h>
  28 #endif
  29
  30 #include "getopt.h"
  31
  32 #include <sys/types.h>
  33 #include "gdb_stat.h"
  34 #include <ctype.h>
  35
  36 #include "gdb_string.h"
  37 #include "event-loop.h"
  38
  39 /* If nonzero, display time usage both at startup and for each command.  */
  40
  41 int display_time;
  42
  43 /* If nonzero, display space usage both at startup and for each command.  */
  44
  45 int display_space;
  46
  47 /* Whether this is the async version or not.  The async version is
  48 invoked on the command line with the -nw --async options.  In this
  49 version, the usual command_loop is substituted by and event loop which
  50 processes UI events asynchronously. */
  51 int async_p = 1;
  52
  53 /* Whether this is the command line version or not */
  54 int tui_version = 0;
  55
  56 /* Whether xdb commands will be handled */
  57 int xdb_commands = 0;
  58
  59 /* Whether dbx commands will be handled */
  60 int dbx_commands = 0;
  61
  62 GDB_FILE *gdb_stdout;
  63 GDB_FILE *gdb_stderr;
  64 GDB_FILE *gdb_stdlog;
  65
  66 /* Whether to enable writing into executable and core files */
  67 extern int write_files;
  68
  69 static void print_gdb_help PARAMS ((GDB_FILE *));
  70
  71 /* These two are used to set the external editor commands when gdb is farming
  72    out files to be edited by another program. */
  73
  74 extern int enable_external_editor;
  75 extern char * external_editor_command;
  76
  77 #ifdef __CYGWIN__
  78 #include <windows.h> /* for MAX_PATH */
  79 #include <sys/cygwin.h> /* for cygwin32_conv_to_posix_path */
  80 #endif
  81
  82 int
  83 main (argc, argv)
  84      int argc;
  85      char **argv;
  86 {
  87   int count;
  88   static int quiet = 0;
  89   static int batch = 0;
  90
  91   /* Pointers to various arguments from command line.  */
  92   char *symarg = NULL;
  93   char *execarg = NULL;
  94   char *corearg = NULL;
  95   char *cdarg = NULL;
  96   char *ttyarg = NULL;
  97
  98   /* These are static so that we can take their address in an initializer.  */
  99   static int print_help;
 100   static int print_version;
 101
 102   /* Pointers to all arguments of --command option.  */
 103   char **cmdarg;
 104   /* Allocated size of cmdarg.  */
 105   int cmdsize;
 106   /* Number of elements of cmdarg used.  */
 107   int ncmd;
 108
 109   /* Indices of all arguments of --directory option.  */
 110   char **dirarg;
 111   /* Allocated size.  */
 112   int dirsize;
 113   /* Number of elements used.  */
 114   int ndir;
 115
 116   struct stat homebuf, cwdbuf;
 117   char *homedir, *homeinit;
 118
 119   register int i;
 120
 121   long time_at_startup = get_run_time ();
 122
 123   int gdb_file_size;
 124
 125   START_PROGRESS (argv[0], 0);
 126
 127 #ifdef MPW
 128   /* Do all Mac-specific setup. */
 129   mac_init ();
 130 #endif /* MPW */
 131
 132   /* This needs to happen before the first use of malloc.  */
 133   init_malloc ((PTR) NULL);
 134
 135 #if defined (ALIGN_STACK_ON_STARTUP)
 136   i = (int) &count & 0x3;
 137   if (i != 0)
 138     alloca (4 - i);
 139 #endif
 140
 141   /* If error() is called from initialization code, just exit */
 142   if (SET_TOP_LEVEL ()) {
 143     exit(1);
 144   }
 145
 146   cmdsize = 1;
 147   cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg));
 148   ncmd = 0;
 149   dirsize = 1;
 150   dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg));
 151   ndir = 0;
 152
 153   quit_flag = 0;
 154   line = (char *) xmalloc (linesize);
 155   line[0] = '\0';               /* Terminate saved (now empty) cmd line */
 156   instream = stdin;
 157
 158   getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
 159   current_directory = gdb_dirbuf;
 160
 161 #if 0
 162   /* not yet */
 163   gdb_stdout = stdio_fileopen (stdout);
 164   gdb_stderr = stdio_fileopen (stderr);
 165   gdb_stdlog = gdb_stderr; /* for moment */
 166 #else
 167   gdb_stdout = tui_fileopen (stdout);
 168   gdb_stderr = tui_fileopen (stderr);
 169   gdb_stdlog = gdb_stdout; /* for moment */
 170 #endif
 171
 172   /* Parse arguments and options.  */
 173   {
 174     int c;
 175     /* When var field is 0, use flag field to record the equivalent
 176        short option (or arbitrary numbers starting at 10 for those
 177        with no equivalent).  */
 178     static struct option long_options[] =
 179        {
 180         {"async", no_argument, &async_p, 1},
 181         {"noasync", no_argument, &async_p, 0},
 182 #if defined(TUI)
 183         {"tui", no_argument, &tui_version, 1},
 184 #endif
 185         {"xdb", no_argument, &xdb_commands, 1},
 186         {"dbx", no_argument, &dbx_commands, 1},
 187         {"readnow", no_argument, &readnow_symbol_files, 1},
 188         {"r", no_argument, &readnow_symbol_files, 1},
 189         {"mapped", no_argument, &mapped_symbol_files, 1},
 190         {"m", no_argument, &mapped_symbol_files, 1},
 191         {"quiet", no_argument, &quiet, 1},
 192         {"q", no_argument, &quiet, 1},
 193         {"silent", no_argument, &quiet, 1},
 194         {"nx", no_argument, &inhibit_gdbinit, 1},
 195         {"n", no_argument, &inhibit_gdbinit, 1},
 196         {"batch", no_argument, &batch, 1},
 197         {"epoch", no_argument, &epoch_interface, 1},
 198
 199         /* This is a synonym for "--annotate=1".  --annotate is now preferred,
 200            but keep this here for a long time because people will be running
 201            emacses which use --fullname.  */
 202         {"fullname", no_argument, 0, 'f'},
 203         {"f", no_argument, 0, 'f'},
 204
 205         {"annotate", required_argument, 0, 12},
 206         {"help", no_argument, &print_help, 1},
 207         {"se", required_argument, 0, 10},
 208         {"symbols", required_argument, 0, 's'},
 209         {"s", required_argument, 0, 's'},
 210         {"exec", required_argument, 0, 'e'},
 211         {"e", required_argument, 0, 'e'},
 212         {"core", required_argument, 0, 'c'},
 213         {"c", required_argument, 0, 'c'},
 214         {"command", required_argument, 0, 'x'},
 215         {"version", no_argument, &print_version, 1},
 216         {"x", required_argument, 0, 'x'},
 217         {"directory", required_argument, 0, 'd'},
 218         {"cd", required_argument, 0, 11},
 219         {"tty", required_argument, 0, 't'},
 220         {"baud", required_argument, 0, 'b'},
 221         {"b", required_argument, 0, 'b'},
 222         {"nw", no_argument, &use_windows, 0},
 223         {"nowindows", no_argument, &use_windows, 0},
 224         {"w", no_argument, &use_windows, 1},
 225         {"windows", no_argument, &use_windows, 1},
 226         {"statistics", no_argument, 0, 13},
 227         {"write", no_argument, &write_files, 1},
 228 /* Allow machine descriptions to add more options... */
 229 #ifdef ADDITIONAL_OPTIONS
 230         ADDITIONAL_OPTIONS
 231 #endif
 232         {0, no_argument, 0, 0}
 233       };
 234
 235     while (1)
 236       {
 237         int option_index;
 238
 239         c = getopt_long_only (argc, argv, "",
 240                               long_options, &option_index);
 241         if (c == EOF)
 242           break;
 243
 244         /* Long option that takes an argument.  */
 245         if (c == 0 && long_options[option_index].flag == 0)
 246           c = long_options[option_index].val;
 247
 248         switch (c)
 249           {
 250           case 0:
 251             /* Long option that just sets a flag.  */
 252             break;
 253           case 10:
 254             symarg = optarg;
 255             execarg = optarg;
 256             break;
 257           case 11:
 258             cdarg = optarg;
 259             break;
 260           case 12:
 261             /* FIXME: what if the syntax is wrong (e.g. not digits)?  */
 262             annotation_level = atoi (optarg);
 263             break;
 264           case 13:
 265             /* Enable the display of both time and space usage.  */
 266             display_time = 1;
 267             display_space = 1;
 268             break;
 269           case 'f':
 270             annotation_level = 1;
 271 /* We have probably been invoked from emacs.  Disable window interface.  */
 272             use_windows = 0;
 273             break;
 274           case 's':
 275             symarg = optarg;
 276             break;
 277           case 'e':
 278             execarg = optarg;
 279             break;
 280           case 'c':
 281             corearg = optarg;
 282             break;
 283           case 'x':
 284             cmdarg[ncmd++] = optarg;
 285             if (ncmd >= cmdsize)
 286               {
 287                 cmdsize *= 2;
 288                 cmdarg = (char **) xrealloc ((char *)cmdarg,
 289                                              cmdsize * sizeof (*cmdarg));
 290               }
 291             break;
 292           case 'd':
 293             dirarg[ndir++] = optarg;
 294             if (ndir >= dirsize)
 295               {
 296                 dirsize *= 2;
 297                 dirarg = (char **) xrealloc ((char *)dirarg,
 298                                              dirsize * sizeof (*dirarg));
 299               }
 300             break;
 301           case 't':
 302             ttyarg = optarg;
 303             break;
 304           case 'q':
 305             quiet = 1;
 306             break;
 307           case 'b':
 308             {
 309               int i;
 310               char *p;
 311
 312               i = strtol (optarg, &p, 0);
 313               if (i == 0 && p == optarg)
 314
 315                 /* Don't use *_filtered or warning() (which relies on
 316                    current_target) until after initialize_all_files(). */
 317
 318                 fprintf_unfiltered
 319                   (gdb_stderr,
 320                    "warning: could not set baud rate to `%s'.\n", optarg);
 321               else
 322                 baud_rate = i;
 323             }
 324           case 'l':
 325             {
 326               int i;
 327               char *p;
 328
 329               i = strtol (optarg, &p, 0);
 330               if (i == 0 && p == optarg)
 331
 332                 /* Don't use *_filtered or warning() (which relies on
 333                    current_target) until after initialize_all_files(). */
 334
 335                 fprintf_unfiltered
 336                   (gdb_stderr,
 337                    "warning: could not set timeout limit to `%s'.\n", optarg);
 338               else
 339                 remote_timeout = i;
 340             }
 341             break;
 342
 343 #ifdef ADDITIONAL_OPTION_CASES
 344           ADDITIONAL_OPTION_CASES
 345 #endif
 346           case '?':
 347             fprintf_unfiltered (gdb_stderr,
 348                      "Use `%s --help' for a complete list of options.\n",
 349                      argv[0]);
 350             exit (1);
 351           }
 352       }
 353
 354     /* If --help or --version, disable window interface.  */
 355     if (print_help || print_version)
 356       {
 357         use_windows = 0;
 358 #ifdef TUI
 359         /* Disable the TUI as well.  */
 360         tui_version = 0;
 361 #endif
 362       }
 363
 364 #ifdef TUI
 365     /* An explicit --tui flag overrides the default UI, which is the
 366        window system.  */
 367     if (tui_version)
 368       use_windows = 0;
 369 #endif
 370
 371     /* OK, that's all the options.  The other arguments are filenames.  */
 372     count = 0;
 373     for (; optind < argc; optind++)
 374       switch (++count)
 375         {
 376         case 1:
 377           symarg = argv[optind];
 378           execarg = argv[optind];
 379           break;
 380         case 2:
 381           corearg = argv[optind];
 382           break;
 383         case 3:
 384           fprintf_unfiltered (gdb_stderr,
 385                    "Excess command line arguments ignored. (%s%s)\n",
 386                    argv[optind], (optind == argc - 1) ? "" : " ...");
 387           break;
 388         }
 389     if (batch)
 390       quiet = 1;
 391   }
 392
 393 #if defined(TUI)
 394   /* Should this be moved to tui-top.c:_initialize_tui()? */
 395   if (tui_version)
 396     init_ui_hook = tuiInit;
 397 #endif
 398
 399   /* Initialize all files.  Give the interpreter a chance to take
 400      control of the console via the init_ui_hook()) */
 401   gdb_init (argv[0]);
 402
 403   /* Do these (and anything which might call wrap_here or *_filtered)
 404      after initialize_all_files.  */
 405   if (print_version)
 406     {
 407       print_gdb_version (gdb_stdout);
 408       wrap_here ("");
 409       printf_filtered ("\n");
 410       exit (0);
 411     }
 412
 413   if (print_help)
 414     {
 415       print_gdb_help (gdb_stdout);
 416       fputs_unfiltered ("\n", gdb_stdout);
 417       exit (0);
 418     }
 419
 420   if (!quiet)
 421     {
 422       /* Print all the junk at the top, with trailing "..." if we are about
 423          to read a symbol file (possibly slowly).  */
 424       print_gdb_version (gdb_stdout);
 425       if (symarg)
 426         printf_filtered ("..");
 427       wrap_here("");
 428       gdb_flush (gdb_stdout);           /* Force to screen during slow operations */
 429     }
 430
 431   error_pre_print = "\n\n";
 432   quit_pre_print = error_pre_print;
 433
 434   /* We may get more than one warning, don't double space all of them... */
 435   warning_pre_print = "\nwarning: ";
 436
 437   /* Read and execute $HOME/.gdbinit file, if it exists.  This is done
 438      *before* all the command line arguments are processed; it sets
 439      global parameters, which are independent of what file you are
 440      debugging or what directory you are in.  */
 441 #ifdef __CYGWIN32__
 442   {
 443     char * tmp = getenv ("HOME");
 444
 445     if (tmp != NULL)
 446       {
 447         homedir = (char *) alloca (MAX_PATH+1);
 448         cygwin32_conv_to_posix_path (tmp, homedir);
 449       }
 450     else
 451       homedir = NULL;
 452   }
 453 #else
 454   homedir = getenv ("HOME");
 455 #endif
 456   if (homedir)
 457     {
 458       homeinit = (char *) alloca (strlen (homedir) +
 459                                   strlen (gdbinit) + 10);
 460       strcpy (homeinit, homedir);
 461       strcat (homeinit, "/");
 462       strcat (homeinit, gdbinit);
 463
 464       if (!inhibit_gdbinit)
 465         {
 466           if (!SET_TOP_LEVEL ())
 467             source_command (homeinit, 0);
 468         }
 469       do_cleanups (ALL_CLEANUPS);
 470
 471       /* Do stats; no need to do them elsewhere since we'll only
 472          need them if homedir is set.  Make sure that they are
 473          zero in case one of them fails (this guarantees that they
 474          won't match if either exists).  */
 475
 476       memset (&homebuf, 0, sizeof (struct stat));
 477       memset (&cwdbuf, 0, sizeof (struct stat));
 478
 479       stat (homeinit, &homebuf);
 480       stat (gdbinit, &cwdbuf); /* We'll only need this if
 481                                        homedir was set.  */
 482     }
 483
 484   /* Now perform all the actions indicated by the arguments.  */
 485   if (cdarg != NULL)
 486     {
 487       if (!SET_TOP_LEVEL ())
 488         {
 489           cd_command (cdarg, 0);
 490         }
 491     }
 492   do_cleanups (ALL_CLEANUPS);
 493
 494   for (i = 0; i < ndir; i++)
 495     if (!SET_TOP_LEVEL ())
 496       directory_command (dirarg[i], 0);
 497   free ((PTR)dirarg);
 498   do_cleanups (ALL_CLEANUPS);
 499
 500   if (execarg != NULL
 501       && symarg != NULL
 502       && STREQ (execarg, symarg))
 503     {
 504       /* The exec file and the symbol-file are the same.  If we can't open
 505          it, better only print one error message.  */
 506       if (!SET_TOP_LEVEL ())
 507         {
 508           exec_file_command (execarg, !batch);
 509           symbol_file_command (symarg, 0);
 510         }
 511     }
 512   else
 513     {
 514       if (execarg != NULL)
 515         if (!SET_TOP_LEVEL ())
 516           exec_file_command (execarg, !batch);
 517       if (symarg != NULL)
 518         if (!SET_TOP_LEVEL ())
 519           symbol_file_command (symarg, 0);
 520     }
 521   do_cleanups (ALL_CLEANUPS);
 522
 523   /* After the symbol file has been read, print a newline to get us
 524      beyond the copyright line...  But errors should still set off
 525      the error message with a (single) blank line.  */
 526   if (!quiet)
 527     printf_filtered ("\n");
 528   error_pre_print = "\n";
 529   quit_pre_print = error_pre_print;
 530   warning_pre_print = "\nwarning: ";
 531
 532   if (corearg != NULL)
 533     {
 534       if (!SET_TOP_LEVEL ())
 535         core_file_command (corearg, !batch);
 536       else if (isdigit (corearg[0]) && !SET_TOP_LEVEL ())
 537         attach_command (corearg, !batch);
 538     }
 539   do_cleanups (ALL_CLEANUPS);
 540
 541   if (ttyarg != NULL)
 542     if (!SET_TOP_LEVEL ())
 543       tty_command (ttyarg, !batch);
 544   do_cleanups (ALL_CLEANUPS);
 545
 546 #ifdef ADDITIONAL_OPTION_HANDLER
 547   ADDITIONAL_OPTION_HANDLER;
 548 #endif
 549
 550   /* Error messages should no longer be distinguished with extra output. */
 551   error_pre_print = NULL;
 552   quit_pre_print = NULL;
 553   warning_pre_print = "warning: ";
 554
 555   /* Read the .gdbinit file in the current directory, *if* it isn't
 556      the same as the $HOME/.gdbinit file (it should exist, also).  */
 557
 558   if (!homedir
 559       || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat)))
 560     if (!inhibit_gdbinit)
 561       {
 562         if (!SET_TOP_LEVEL ())
 563           source_command (gdbinit, 0);
 564       }
 565   do_cleanups (ALL_CLEANUPS);
 566
 567   for (i = 0; i < ncmd; i++)
 568     {
 569       if (!SET_TOP_LEVEL ())
 570         {
 571           /* NOTE: I am commenting this out, because it is not clear
 572              where this feature is used. It is very old and
 573              undocumented. ezannoni: 1999-05-04*/
 574 #if 0
 575           if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0')
 576             read_command_file (stdin);
 577           else
 578 #endif
 579             source_command (cmdarg[i], !batch);
 580           do_cleanups (ALL_CLEANUPS);
 581         }
 582     }
 583   free ((PTR)cmdarg);
 584
 585   /* Read in the old history after all the command files have been read. */
 586   init_history();
 587
 588   if (batch)
 589     {
 590       /* We have hit the end of the batch file.  */
 591       exit (0);
 592     }
 593
 594   /* Do any host- or target-specific hacks.  This is used for i960 targets
 595      to force the user to set a nindy target and spec its parameters.  */
 596
 597 #ifdef BEFORE_MAIN_LOOP_HOOK
 598   BEFORE_MAIN_LOOP_HOOK;
 599 #endif
 600
 601   END_PROGRESS (argv[0]);
 602
 603   /* Show time and/or space usage.  */
 604
 605   if (display_time)
 606     {
 607       long init_time = get_run_time () - time_at_startup;
 608
 609       printf_unfiltered ("Startup time: %ld.%06ld\n",
 610                          init_time / 1000000, init_time % 1000000);
 611     }
 612
 613   if (display_space)
 614     {
 615 #ifdef HAVE_SBRK
 616       extern char **environ;
 617       char *lim = (char *) sbrk (0);
 618
 619       printf_unfiltered ("Startup size: data size %ld\n",
 620                          (long) (lim - (char *) &environ));
 621 #endif
 622     }
 623
 624   /* The default command loop.
 625      The WIN32 Gui calls this main to set up gdb's state, and
 626      has its own command loop. */
 627 #if !defined _WIN32 || defined __GNUC__
 628   while (1)
 629     {
 630       if (!SET_TOP_LEVEL ())
 631         {
 632           do_cleanups (ALL_CLEANUPS);           /* Do complete cleanup */
 633           /* GUIs generally have their own command loop, mainloop, or whatever.
 634              This is a good place to gain control because many error
 635              conditions will end up here via longjmp(). */
 636           if (command_loop_hook)
 637             command_loop_hook ();
 638           else
 639             command_loop ();
 640           quit_command ((char *)0, instream == stdin);
 641         }
 642     }
 643   /* No exit -- exit is through quit_command.  */
 644 #endif
 645
 646 }
 647
 648 /* Don't use *_filtered for printing help.  We don't want to prompt
 649    for continue no matter how small the screen or how much we're going
 650    to print.  */
 651
 652 static void
 653 print_gdb_help (stream)
 654   GDB_FILE *stream;
 655 {
 656       fputs_unfiltered ("\
 657 This is the GNU debugger.  Usage:\n\n\
 658     gdb [options] [executable-file [core-file or process-id]]\n\n\
 659 Options:\n\n\
 660 ", stream);
 661        fputs_unfiltered ("\
 662   --[no]async        Enable (disable) asynchronous version of CLI\n\
 663 ", stream);
 664       fputs_unfiltered ("\
 665   -b BAUDRATE        Set serial port baud rate used for remote debugging.\n\
 666   --batch            Exit after processing options.\n\
 667   --cd=DIR           Change current directory to DIR.\n\
 668   --command=FILE     Execute GDB commands from FILE.\n\
 669   --core=COREFILE    Analyze the core dump COREFILE.\n\
 670 ", stream);
 671       fputs_unfiltered ("\
 672   --dbx              DBX compatibility mode.\n\
 673   --directory=DIR    Search for source files in DIR.\n\
 674   --epoch            Output information used by epoch emacs-GDB interface.\n\
 675   --exec=EXECFILE    Use EXECFILE as the executable.\n\
 676   --fullname         Output information used by emacs-GDB interface.\n\
 677   --help             Print this message.\n\
 678 ", stream);
 679       fputs_unfiltered ("\
 680   --mapped           Use mapped symbol files if supported on this system.\n\
 681   --nw               Do not use a window interface.\n\
 682   --nx               Do not read .gdbinit file.\n\
 683   --quiet            Do not print version number on startup.\n\
 684   --readnow          Fully read symbol files on first access.\n\
 685 ", stream);
 686       fputs_unfiltered ("\
 687   --se=FILE          Use FILE as symbol file and executable file.\n\
 688   --symbols=SYMFILE  Read symbols from SYMFILE.\n\
 689   --tty=TTY          Use TTY for input/output by the program being debugged.\n\
 690 ", stream);
 691 #if defined(TUI)
 692       fputs_unfiltered ("\
 693   --tui              Use a terminal user interface.\n\
 694 ", stream);
 695 #endif
 696       fputs_unfiltered ("\
 697   --version          Print version information and then exit.\n\
 698   -w                 Use a window interface.\n\
 699   --write            Set writing into executable and core files.\n\
 700   --xdb              XDB compatibility mode.\n\
 701 ", stream);
 702 #ifdef ADDITIONAL_OPTION_HELP
 703       fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream);
 704 #endif
 705       fputs_unfiltered ("\n\
 706 For more information, type \"help\" from within GDB, or consult the\n\
 707 GDB manual (available as on-line info or a printed manual).\n\
 708 Report bugs to \"bug-gdb@prep.ai.mit.edu\".\
 709 ", stream);
 710 }
 711
 712 \f
 713 /* All TUI I/O sent to the *_filtered and *_unfiltered functions
 714    eventually ends up here.  The fputs_unfiltered_hook is primarily
 715    used by GUIs to collect all output and send it to the GUI, instead
 716    of the controlling terminal.  Only output to gdb_stdout and
 717    gdb_stderr are sent to the hook.  Everything else is sent on to
 718    fputs to allow file I/O to be handled appropriately.  */
 719
 720 /* FIXME: Should be broken up and moved to a TUI specific file. */
 721
 722 void
 723 tui_file_fputs (linebuffer, file)
 724      const char *linebuffer;
 725      GDB_FILE *file;
 726 {
 727   struct tui_stream *stream = gdb_file_data (file);
 728 #if defined(TUI)
 729   extern int tui_owns_terminal;
 730 #endif
 731   /* If anything (GUI, TUI) wants to capture GDB output, this is
 732    * the place... the way to do it is to set up
 733    * fputs_unfiltered_hook.
 734    * Our TUI ("gdb -tui") used to hook output, but in the
 735    * new (XDB style) scheme, we do not do that anymore... - RT
 736    */
 737   if (fputs_unfiltered_hook
 738       && (file == gdb_stdout
 739           || file == gdb_stderr))
 740     fputs_unfiltered_hook (linebuffer, file);
 741   else
 742     {
 743 #if defined(TUI)
 744       if (tui_version && tui_owns_terminal) {
 745         /* If we get here somehow while updating the TUI (from
 746          * within a tuiDo(), then we need to temporarily
 747          * set up the terminal for GDB output. This probably just
 748          * happens on error output.
 749          */
 750
 751         if (stream->ts_streamtype == astring) {
 752            gdb_file_adjust_strbuf(strlen(linebuffer), stream);
 753            strcat(stream->ts_strbuf, linebuffer);
 754         } else {
 755            tuiTermUnsetup(0, (tui_version) ? cmdWin->detail.commandInfo.curch : 0);
 756            fputs (linebuffer, stream->ts_filestream);
 757            tuiTermSetup(0);
 758            if (linebuffer[strlen(linebuffer) - 1] == '\n')
 759               tuiClearCommandCharCount();
 760            else
 761               tuiIncrCommandCharCountBy(strlen(linebuffer));
 762         }
 763       } else {
 764         /* The normal case - just do a fputs() */
 765         if (stream->ts_streamtype == astring) {
 766            gdb_file_adjust_strbuf(strlen(linebuffer), stream);
 767            strcat(stream->ts_strbuf, linebuffer);
 768         } else fputs (linebuffer, stream->ts_filestream);
 769       }
 770
 771
 772 #else
 773       if (stream->ts_streamtype == astring) {
 774            gdb_file_adjust_strbuf(strlen(linebuffer), file);
 775            strcat(stream->ts_strbuf, linebuffer);
 776         } else fputs (linebuffer, stream->ts_filestream);
 777 #endif
 778     }
 779 }