gdb/gdbtk.tcl

   1 # GDB GUI setup for GDB, the GNU debugger.
   2 # Copyright 1994, 1995, 1996
   3 # Free Software Foundation, Inc.
   4
   5 # Written by Stu Grossman <grossman@cygnus.com> of Cygnus Support.
   6
   7 # This file is part of GDB.
   8
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, write to the Free Software
  21 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22
  23 set cfile Blank
  24 set wins($cfile) .src.text
  25 set current_label {}
  26 set cfunc NIL
  27 set line_numbers 1
  28 set breakpoint_file(-1) {[garbage]}
  29 set disassemble_with_source nosource
  30 set expr_update_list(0) 0
  31
  32 #option add *Foreground Black
  33 #option add *Background White
  34 #option add *Font -*-*-medium-r-normal--18-*-*-*-m-*-*-1
  35
  36 proc echo string {puts stdout $string}
  37
  38 # Assign elements from LIST to variables named in ARGS.  FIXME replace
  39 # with TclX version someday.
  40 proc lassign {list args} {
  41   set len [expr {[llength $args] - 1}]
  42   while {$len >= 0} {
  43     upvar [lindex $args $len] local
  44     set local [lindex $list $len]
  45     decr len
  46   }
  47 }
  48
  49 #
  50 # Local procedure:
  51 #
  52 #       decr (var val) - compliment to incr
  53 #
  54 # Description:
  55 #
  56 #
  57 proc decr {var {val 1}} {
  58   upvar $var num
  59   set num [expr {$num - $val}]
  60   return $num
  61 }
  62
  63 #
  64 # Center a window on the screen.
  65 #
  66 proc center_window toplevel {
  67   # Withdraw and update, to ensure geometry computations are finished.
  68   wm withdraw $toplevel
  69   update idletasks
  70
  71   set x [expr {[winfo screenwidth $toplevel] / 2
  72                - [winfo reqwidth $toplevel] / 2
  73                - [winfo vrootx $toplevel]}]
  74   set y [expr {[winfo screenheight $toplevel] / 2
  75                - [winfo reqheight $toplevel] / 2
  76                - [winfo vrooty $toplevel]}]
  77   wm geometry $toplevel +${x}+${y}
  78   wm deiconify $toplevel
  79 }
  80
  81 #
  82 # Rearrange the bindtags so the widget comes after the class.  I was
  83 # always for Ousterhout putting the class bindings first, but no...
  84 #
  85 proc bind_widget_after_class {widget} {
  86   set class [winfo class $widget]
  87   set newList {}
  88   foreach tag [bindtags $widget] {
  89     if {$tag == $widget} {
  90       # Nothing.
  91     } {
  92       lappend newList $tag
  93       if {$tag == $class} {
  94         lappend newList $widget
  95       }
  96     }
  97   }
  98   bindtags $widget $newList
  99 }
 100
 101 #
 102 # Make sure line number $LINE is visible in the text widget.  But be
 103 # more clever than the "see" command: if LINE is not currently
 104 # displayed, arrange for LINE to be centered.  There are cases in
 105 # which this does not work, so as a last resort we revert to "see".
 106 #
 107 # This is inefficient, but probably not slow enough to actually
 108 # notice.
 109 #
 110 proc ensure_line_visible {text line} {
 111   set pixHeight [winfo height $text]
 112   # Compute height of widget in lines.  This fails if a line is wider
 113   # than the screen.  FIXME.
 114   set topLine [lindex [split [$text index @0,0] .] 0]
 115   set botLine [lindex [split [$text index @0,${pixHeight}] .] 0]
 116
 117   if {$line > $topLine && $line < $botLine} then {
 118     # Onscreen, and not on the very edge.
 119     return
 120   }
 121
 122   set newTop [expr {$line - ($botLine - $topLine)}]
 123   if {$newTop < 0} then {
 124     set newTop 0
 125   }
 126   $text yview moveto $newTop
 127
 128   # In case the above failed.
 129   $text see ${line}.0
 130 }
 131
 132 if {[info exists env(EDITOR)]} then {
 133   set editor $env(EDITOR)
 134 } else {
 135   set editor emacs
 136 }
 137
 138 # GDB callbacks
 139 #
 140 #  These functions are called by GDB (from C code) to do various things in
 141 #  TK-land.  All start with the prefix `gdbtk_tcl_' to make them easy to find.
 142 #
 143
 144 #
 145 # GDB Callback:
 146 #
 147 #       gdbtk_tcl_fputs (text) - Output text to the command window
 148 #
 149 # Description:
 150 #
 151 #       GDB calls this to output TEXT to the GDB command window.  The text is
 152 #       placed at the end of the text widget.  Note that output may not occur,
 153 #       due to buffering.  Use gdbtk_tcl_flush to cause an immediate update.
 154 #
 155
 156 proc gdbtk_tcl_fputs {arg} {
 157   .cmd.text insert end "$arg"
 158   .cmd.text see end
 159 }
 160
 161 proc gdbtk_tcl_fputs_error {arg} {
 162   .cmd.text insert end "$arg"
 163   .cmd.text see end
 164 }
 165
 166 #
 167 # GDB Callback:
 168 #
 169 #       gdbtk_tcl_flush () - Flush output to the command window
 170 #
 171 # Description:
 172 #
 173 #       GDB calls this to force all buffered text to the GDB command window.
 174 #
 175
 176 proc gdbtk_tcl_flush {} {
 177   .cmd.text see end
 178   update idletasks
 179 }
 180
 181 #
 182 # GDB Callback:
 183 #
 184 #       gdbtk_tcl_query (message) - Create a yes/no query dialog box
 185 #
 186 # Description:
 187 #
 188 #       GDB calls this to create a yes/no dialog box containing MESSAGE.  GDB
 189 #       is hung while the dialog box is active (ie: no commands will work),
 190 #       however windows can still be refreshed in case of damage or exposure.
 191 #
 192
 193 proc gdbtk_tcl_query {message} {
 194   # FIXME We really want a Help button here.  But Tk's brain-damaged
 195   # modal dialogs won't really allow it.  Should have async dialog
 196   # here.
 197   set result [tk_dialog .query "gdb : query" "$message" questhead 0 Yes No]
 198   return [expr {!$result}]
 199 }
 200
 201 #
 202 # GDB Callback:
 203 #
 204 #       gdbtk_start_variable_annotation (args ...) -
 205 #
 206 # Description:
 207 #
 208 #       Not yet implemented.
 209 #
 210
 211 proc gdbtk_tcl_start_variable_annotation {valaddr ref_type stor_cl
 212                                           cum_expr field type_cast} {
 213   echo "gdbtk_tcl_start_variable_annotation $valaddr $ref_type $stor_cl $cum_expr $field $type_cast"
 214 }
 215
 216 #
 217 # GDB Callback:
 218 #
 219 #       gdbtk_end_variable_annotation (args ...) -
 220 #
 221 # Description:
 222 #
 223 #       Not yet implemented.
 224 #
 225
 226 proc gdbtk_tcl_end_variable_annotation {} {
 227         echo gdbtk_tcl_end_variable_annotation
 228 }
 229
 230 #
 231 # GDB Callback:
 232 #
 233 #       gdbtk_tcl_breakpoint (action bpnum file line) - Notify the TK
 234 #       interface of changes to breakpoints.
 235 #
 236 # Description:
 237 #
 238 #       GDB calls this to notify TK of changes to breakpoints.  ACTION is one
 239 #       of:
 240 #               create          - Notify of breakpoint creation
 241 #               delete          - Notify of breakpoint deletion
 242 #               modify          - Notify of breakpoint modification
 243 #
 244
 245 # file line pc type enabled disposition silent ignore_count commands cond_string thread hit_count
 246
 247 proc gdbtk_tcl_breakpoint {action bpnum} {
 248         set bpinfo [gdb_get_breakpoint_info $bpnum]
 249         set file [lindex $bpinfo 0]
 250         set line [lindex $bpinfo 1]
 251         set pc [lindex $bpinfo 2]
 252         set enable [lindex $bpinfo 4]
 253
 254         if {$action == "modify"} {
 255                 if {$enable == "1"} {
 256                         set action enable
 257                 } else {
 258                         set action disable
 259                 }
 260         }
 261
 262         ${action}_breakpoint $bpnum $file $line $pc
 263 }
 264
 265 proc create_breakpoints_window {} {
 266         global bpframe_lasty
 267
 268         if {[winfo exists .breakpoints]} {raise .breakpoints ; return}
 269
 270         build_framework .breakpoints "Breakpoints" ""
 271
 272 # First, delete all the old view menu entries
 273
 274         .breakpoints.menubar.view.menu delete 0 last
 275
 276 # Get rid of label
 277
 278         destroy .breakpoints.label
 279
 280 # Replace text with a canvas and fix the scrollbars
 281
 282         destroy .breakpoints.text
 283         scrollbar .breakpoints.scrollx -orient horizontal \
 284                 -command {.breakpoints.c xview} -relief sunken
 285         canvas .breakpoints.c -relief sunken -bd 2 \
 286                 -cursor hand2 \
 287                 -yscrollcommand {.breakpoints.scroll set} \
 288                 -xscrollcommand {.breakpoints.scrollx set}
 289         .breakpoints.scroll configure -command {.breakpoints.c yview}
 290
 291         pack .breakpoints.scrollx -side bottom -fill x -in .breakpoints.info
 292         pack .breakpoints.c -side left -expand yes -fill both \
 293                 -in .breakpoints.info
 294
 295         set bpframe_lasty 0
 296
 297 # Create a frame for each breakpoint
 298
 299         foreach bpnum [gdb_get_breakpoint_list] {
 300                 add_breakpoint_frame $bpnum
 301         }
 302 }
 303
 304 # Create a frame for bpnum in the .breakpoints canvas
 305
 306 proc add_breakpoint_frame bpnum {
 307   global bpframe_lasty
 308   global enabled
 309   global disposition
 310
 311   if {![winfo exists .breakpoints]} return
 312
 313   set bpinfo [gdb_get_breakpoint_info $bpnum]
 314
 315   lassign $bpinfo file line pc type enabled($bpnum) disposition($bpnum) \
 316     silent ignore_count commands cond thread hit_count
 317
 318   set f .breakpoints.c.$bpnum
 319
 320   if {![winfo exists $f]} {
 321     frame $f -relief sunken -bd 2
 322
 323     label $f.id -text "#$bpnum     $file:$line    ($pc)" \
 324       -relief flat -bd 2 -anchor w
 325     frame $f.hit_count
 326     label $f.hit_count.label -text "Hit count:" -relief flat \
 327       -bd 2 -anchor w -width 11
 328     label $f.hit_count.val -text $hit_count -relief flat \
 329       -bd 2 -anchor w
 330     checkbutton $f.hit_count.enabled -text Enabled \
 331       -variable enabled($bpnum) -anchor w -relief flat
 332
 333     pack $f.hit_count.label $f.hit_count.val -side left
 334     pack $f.hit_count.enabled -side right
 335
 336     frame $f.thread
 337     label $f.thread.label -text "Thread: " -relief flat -bd 2 \
 338       -width 11 -anchor w
 339     entry $f.thread.entry -bd 2 -relief sunken -width 10
 340     $f.thread.entry insert end $thread
 341     pack $f.thread.label -side left
 342     pack $f.thread.entry -side left -fill x
 343
 344     frame $f.cond
 345     label $f.cond.label -text "Condition: " -relief flat -bd 2 \
 346       -width 11 -anchor w
 347     entry $f.cond.entry -bd 2 -relief sunken
 348     $f.cond.entry insert end $cond
 349     pack $f.cond.label -side left
 350     pack $f.cond.entry -side left -fill x -expand yes
 351
 352     frame $f.ignore_count
 353     label $f.ignore_count.label -text "Ignore count: " \
 354       -relief flat -bd 2 -width 11 -anchor w
 355     entry $f.ignore_count.entry -bd 2 -relief sunken -width 10
 356     $f.ignore_count.entry insert end $ignore_count
 357     pack $f.ignore_count.label -side left
 358     pack $f.ignore_count.entry -side left -fill x
 359
 360     frame $f.disps
 361
 362     label $f.disps.label -text "Disposition: " -relief flat -bd 2 \
 363       -anchor w -width 11
 364
 365     radiobutton $f.disps.delete -text Delete \
 366       -variable disposition($bpnum) -anchor w -relief flat \
 367       -command "gdb_cmd \"delete break $bpnum\"" \
 368       -value delete
 369
 370     radiobutton $f.disps.disable -text Disable \
 371       -variable disposition($bpnum) -anchor w -relief flat \
 372       -command "gdb_cmd \"disable break $bpnum\"" \
 373       -value disable
 374
 375     radiobutton $f.disps.donttouch -text "Leave alone" \
 376       -variable disposition($bpnum) -anchor w -relief flat \
 377       -command "gdb_cmd \"enable break $bpnum\"" \
 378       -value donttouch
 379
 380     pack $f.disps.label $f.disps.delete $f.disps.disable \
 381       $f.disps.donttouch -side left -anchor w
 382     text $f.commands -relief sunken -bd 2 -setgrid true \
 383       -cursor hand2 -height 3 -width 30
 384
 385     foreach line $commands {
 386       $f.commands insert end "${line}\n"
 387     }
 388
 389     pack $f.id -side top -anchor nw -fill x
 390     pack $f.hit_count $f.cond $f.thread $f.ignore_count $f.disps \
 391       $f.commands -side top -fill x -anchor nw
 392   }
 393
 394   set tag [.breakpoints.c create window 0 $bpframe_lasty -window $f -anchor nw]
 395   update
 396   set bbox [.breakpoints.c bbox $tag]
 397
 398   set bpframe_lasty [lindex $bbox 3]
 399
 400   .breakpoints.c configure -width [lindex $bbox 2]
 401 }
 402
 403 # Delete a breakpoint frame
 404
 405 proc delete_breakpoint_frame bpnum {
 406         global bpframe_lasty
 407
 408         if {![winfo exists .breakpoints]} return
 409
 410 # First, clear the canvas
 411
 412         .breakpoints.c delete all
 413
 414 # Now, repopulate it with all but the doomed breakpoint
 415
 416         set bpframe_lasty 0
 417         foreach bp [gdb_get_breakpoint_list] {
 418                 if {$bp != $bpnum} {
 419                         add_breakpoint_frame $bp
 420                 }
 421         }
 422 }
 423
 424 proc asm_win_name {funcname} {
 425         if {$funcname == "*None*"} {return .asm.text}
 426
 427         regsub -all {\.} $funcname _ temp
 428
 429         return .asm.func_${temp}
 430 }
 431
 432 #
 433 # Local procedure:
 434 #
 435 #       create_breakpoint (bpnum file line pc) - Record breakpoint info in TK land
 436 #
 437 # Description:
 438 #
 439 #       GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
 440 #       land of breakpoint creation.  This consists of recording the file and
 441 #       line number in the breakpoint_file and breakpoint_line arrays.  Also,
 442 #       if there is already a window associated with FILE, it is updated with
 443 #       a breakpoint tag.
 444 #
 445
 446 proc create_breakpoint {bpnum file line pc} {
 447         global wins
 448         global breakpoint_file
 449         global breakpoint_line
 450         global pos_to_breakpoint
 451         global pos_to_bpcount
 452         global cfunc
 453         global pclist
 454
 455 # Record breakpoint locations
 456
 457         set breakpoint_file($bpnum) $file
 458         set breakpoint_line($bpnum) $line
 459         set pos_to_breakpoint($file:$line) $bpnum
 460         if {![info exists pos_to_bpcount($file:$line)]} {
 461                 set pos_to_bpcount($file:$line) 0
 462         }
 463         incr pos_to_bpcount($file:$line)
 464         set pos_to_breakpoint($pc) $bpnum
 465         if {![info exists pos_to_bpcount($pc)]} {
 466                 set pos_to_bpcount($pc) 0
 467         }
 468         incr pos_to_bpcount($pc)
 469
 470 # If there's a window for this file, update it
 471
 472         if {[info exists wins($file)]} {
 473                 insert_breakpoint_tag $wins($file) $line
 474         }
 475
 476 # If there's an assembly window, update that too
 477
 478         set win [asm_win_name $cfunc]
 479         if {[winfo exists $win]} {
 480                 insert_breakpoint_tag $win [pc_to_line $pclist($cfunc) $pc]
 481         }
 482
 483 # Update the breakpoints window
 484
 485         add_breakpoint_frame $bpnum
 486 }
 487
 488 #
 489 # Local procedure:
 490 #
 491 #       delete_breakpoint (bpnum file line pc) - Delete breakpoint info from TK land
 492 #
 493 # Description:
 494 #
 495 #       GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
 496 #       land of breakpoint destruction.  This consists of removing the file and
 497 #       line number from the breakpoint_file and breakpoint_line arrays.  Also,
 498 #       if there is already a window associated with FILE, the tags are removed
 499 #       from it.
 500 #
 501
 502 proc delete_breakpoint {bpnum file line pc} {
 503         global wins
 504         global breakpoint_file
 505         global breakpoint_line
 506         global pos_to_breakpoint
 507         global pos_to_bpcount
 508         global cfunc pclist
 509
 510 # Save line number and file for later
 511
 512         set line $breakpoint_line($bpnum)
 513
 514         set file $breakpoint_file($bpnum)
 515
 516 # Reset breakpoint annotation info
 517
 518         if {$pos_to_bpcount($file:$line) > 0} {
 519                 decr pos_to_bpcount($file:$line)
 520
 521                 if {$pos_to_bpcount($file:$line) == 0} {
 522                         catch "unset pos_to_breakpoint($file:$line)"
 523
 524                         unset breakpoint_file($bpnum)
 525                         unset breakpoint_line($bpnum)
 526
 527 # If there's a window for this file, update it
 528
 529                         if {[info exists wins($file)]} {
 530                                 delete_breakpoint_tag $wins($file) $line
 531                         }
 532                 }
 533         }
 534
 535 # If there's an assembly window, update that too
 536
 537         if {$pos_to_bpcount($pc) > 0} {
 538                 decr pos_to_bpcount($pc)
 539
 540                 if {$pos_to_bpcount($pc) == 0} {
 541                         catch "unset pos_to_breakpoint($pc)"
 542
 543                         set win [asm_win_name $cfunc]
 544                         if {[winfo exists $win]} {
 545                                 delete_breakpoint_tag $win [pc_to_line $pclist($cfunc) $pc]
 546                         }
 547                 }
 548         }
 549
 550         delete_breakpoint_frame $bpnum
 551 }
 552
 553 #
 554 # Local procedure:
 555 #
 556 #       enable_breakpoint (bpnum file line pc) - Record breakpoint info in TK land
 557 #
 558 # Description:
 559 #
 560 #       GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
 561 #       land of a breakpoint being enabled.  This consists of unstippling the
 562 #       specified breakpoint indicator.
 563 #
 564
 565 proc enable_breakpoint {bpnum file line pc} {
 566         global wins
 567         global cfunc pclist
 568         global enabled
 569
 570         if {[info exists wins($file)]} {
 571                 $wins($file) tag configure $line -fgstipple {}
 572         }
 573
 574 # If there's an assembly window, update that too
 575
 576         set win [asm_win_name $cfunc]
 577         if {[winfo exists $win]} {
 578                 $win tag configure [pc_to_line $pclist($cfunc) $pc] -fgstipple {}
 579         }
 580
 581 # If there's a breakpoint window, update that too
 582
 583         if {[winfo exists .breakpoints]} {
 584                 set enabled($bpnum) 1
 585         }
 586 }
 587
 588 #
 589 # Local procedure:
 590 #
 591 #       disable_breakpoint (bpnum file line pc) - Record breakpoint info in TK land
 592 #
 593 # Description:
 594 #
 595 #       GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
 596 #       land of a breakpoint being disabled.  This consists of stippling the
 597 #       specified breakpoint indicator.
 598 #
 599
 600 proc disable_breakpoint {bpnum file line pc} {
 601         global wins
 602         global cfunc pclist
 603         global enabled
 604
 605         if {[info exists wins($file)]} {
 606                 $wins($file) tag configure $line -fgstipple gray50
 607         }
 608
 609 # If there's an assembly window, update that too
 610
 611         set win [asm_win_name $cfunc]
 612         if {[winfo exists $win]} {
 613                 $win tag configure [pc_to_line $pclist($cfunc) $pc] -fgstipple gray50
 614         }
 615
 616 # If there's a breakpoint window, update that too
 617
 618         if {[winfo exists .breakpoints]} {
 619                 set enabled($bpnum) 0
 620         }
 621 }
 622
 623 #
 624 # Local procedure:
 625 #
 626 #       insert_breakpoint_tag (win line) - Insert a breakpoint tag in WIN.
 627 #
 628 # Description:
 629 #
 630 #       GDB calls this indirectly (through gdbtk_tcl_breakpoint) to insert a
 631 #       breakpoint tag into window WIN at line LINE.
 632 #
 633
 634 proc insert_breakpoint_tag {win line} {
 635         $win configure -state normal
 636         $win delete $line.0
 637         $win insert $line.0 "B"
 638         $win tag add $line $line.0
 639         $win tag add delete $line.0 "$line.0 lineend"
 640         $win tag add margin $line.0 "$line.0 lineend"
 641
 642         $win configure -state disabled
 643 }
 644
 645 #
 646 # Local procedure:
 647 #
 648 #       delete_breakpoint_tag (win line) - Remove a breakpoint tag from WIN.
 649 #
 650 # Description:
 651 #
 652 #       GDB calls this indirectly (through gdbtk_tcl_breakpoint) to remove a
 653 #       breakpoint tag from window WIN at line LINE.
 654 #
 655
 656 proc delete_breakpoint_tag {win line} {
 657         $win configure -state normal
 658         $win delete $line.0
 659         if {[string range $win 0 3] == ".src"} then {
 660                 $win insert $line.0 "\xa4"
 661         } else {
 662                 $win insert $line.0 " "
 663         }
 664         $win tag delete $line
 665         $win tag add delete $line.0 "$line.0 lineend"
 666         $win tag add margin $line.0 "$line.0 lineend"
 667         $win configure -state disabled
 668 }
 669
 670 proc gdbtk_tcl_busy {} {
 671         if {[winfo exists .src]} {
 672                 .src.start configure -state disabled
 673                 .src.stop configure -state normal
 674                 .src.step configure -state disabled
 675                 .src.next configure -state disabled
 676                 .src.continue configure -state disabled
 677                 .src.finish configure -state disabled
 678                 .src.up configure -state disabled
 679                 .src.down configure -state disabled
 680                 .src.bottom configure -state disabled
 681         }
 682         if {[winfo exists .asm]} {
 683                 .asm.stepi configure -state disabled
 684                 .asm.nexti configure -state disabled
 685                 .asm.continue configure -state disabled
 686                 .asm.finish configure -state disabled
 687                 .asm.up configure -state disabled
 688                 .asm.down configure -state disabled
 689                 .asm.bottom configure -state disabled
 690         }
 691         return
 692 }
 693
 694 proc gdbtk_tcl_idle {} {
 695         if {[winfo exists .src]} {
 696                 .src.start configure -state normal
 697                 .src.stop configure -state disabled
 698                 .src.step configure -state normal
 699                 .src.next configure -state normal
 700                 .src.continue configure -state normal
 701                 .src.finish configure -state normal
 702                 .src.up configure -state normal
 703                 .src.down configure -state normal
 704                 .src.bottom configure -state normal
 705         }
 706
 707         if {[winfo exists .asm]} {
 708                 .asm.stepi configure -state normal
 709                 .asm.nexti configure -state normal
 710                 .asm.continue configure -state normal
 711                 .asm.finish configure -state normal
 712                 .asm.up configure -state normal
 713                 .asm.down configure -state normal
 714                 .asm.bottom configure -state normal
 715         }
 716         return
 717 }
 718
 719 #
 720 # Local procedure:
 721 #
 722 #       pc_to_line (pclist pc) - convert PC to a line number.
 723 #
 724 # Description:
 725 #
 726 #       Convert PC to a line number from PCLIST.  If exact line isn't found,
 727 #       we return the first line that starts before PC.
 728 #
 729 proc pc_to_line {pclist pc} {
 730         set line [lsearch -exact $pclist $pc]
 731
 732         if {$line >= 1} { return $line }
 733
 734         set line 1
 735         foreach linepc [lrange $pclist 1 end] {
 736                 if {$pc < $linepc} { decr line ; return $line }
 737                 incr line
 738         }
 739         return [expr {$line - 1}]
 740 }
 741
 742 #
 743 # Menu:
 744 #
 745 #       file popup menu - Define the file popup menu.
 746 #
 747 # Description:
 748 #
 749 #       This menu just contains a bunch of buttons that do various things to
 750 #       the line under the cursor.
 751 #
 752 # Items:
 753 #
 754 #       Edit - Run the editor (specified by the environment variable EDITOR) on
 755 #              this file, at the current line.
 756 #       Breakpoint - Set a breakpoint at the current line.  This just shoves
 757 #               a `break' command at GDB with the appropriate file and line
 758 #               number.  Eventually, GDB calls us back (at gdbtk_tcl_breakpoint)
 759 #               to notify us of where the breakpoint needs to show up.
 760 #
 761
 762 menu .file_popup -cursor hand2 -tearoff 0
 763 .file_popup add command -label "Not yet set" -state disabled
 764 .file_popup add separator
 765 .file_popup add command -label "Edit" \
 766   -command {exec $editor +$selected_line $selected_file &}
 767 .file_popup add command -label "Set breakpoint" \
 768   -command {gdb_cmd "break $selected_file:$selected_line"}
 769
 770 # Use this procedure to get the GDB core to execute the string `cmd'.  This is
 771 # a wrapper around gdb_cmd, which will catch errors, and send output to the
 772 # command window.  It will also cause all of the other windows to be updated.
 773
 774 proc interactive_cmd {cmd} {
 775         catch {gdb_cmd "$cmd"} result
 776         .cmd.text insert end $result
 777         .cmd.text see end
 778         update_ptr
 779 }
 780
 781 #
 782 # Bindings:
 783 #
 784 #       file popup menu - Define the file popup menu bindings.
 785 #
 786 # Description:
 787 #
 788 #       This defines the binding for the file popup menu.  It simply
 789 #       unhighlights the line under the cursor.
 790 #
 791
 792 bind .file_popup <Any-ButtonRelease-1> {
 793   global selected_win
 794   # Unhighlight the selected line
 795   $selected_win tag delete breaktag
 796 }
 797
 798 #
 799 # Local procedure:
 800 #
 801 #       file_popup_menu (win x y xrel yrel) - Popup the file popup menu.
 802 #
 803 # Description:
 804 #
 805 #       This procedure is invoked as a result of a command binding in the
 806 #       listing window.  It does several things:
 807 #               o - It highlights the line under the cursor.
 808 #               o - It pops up the file popup menu which is intended to do
 809 #                   various things to the aforementioned line.
 810 #               o - Grabs the mouse for the file popup menu.
 811 #
 812
 813 # Button 1 has been pressed in a listing window.  Pop up a menu.
 814
 815 proc file_popup_menu {win x y xrel yrel} {
 816         global wins
 817         global win_to_file
 818         global file_to_debug_file
 819         global highlight
 820         global selected_line
 821         global selected_file
 822         global selected_win
 823
 824 # Map TK window name back to file name.
 825
 826         set file $win_to_file($win)
 827
 828         set pos [$win index @$xrel,$yrel]
 829
 830 # Record selected file and line for menu button actions
 831
 832         set selected_file $file_to_debug_file($file)
 833         set selected_line [lindex [split $pos .] 0]
 834         set selected_win $win
 835
 836 # Highlight the selected line
 837
 838         eval $win tag config breaktag $highlight
 839         $win tag add breaktag "$pos linestart" "$pos linestart + 1l"
 840
 841 # Post the menu near the pointer, (and grab it)
 842
 843         .file_popup entryconfigure 0 -label "$selected_file:$selected_line"
 844         tk_popup .file_popup $x $y
 845 }
 846
 847 #
 848 # Local procedure:
 849 #
 850 #       listing_window_button_1 (win x y xrel yrel) - Handle button 1 in listing window
 851 #
 852 # Description:
 853 #
 854 #       This procedure is invoked as a result of holding down button 1 in the
 855 #       listing window.  The action taken depends upon where the button was
 856 #       pressed.  If it was in the left margin (the breakpoint column), it
 857 #       sets or clears a breakpoint.  In the main text area, it will pop up a
 858 #       menu.
 859 #
 860
 861 proc listing_window_button_1 {win x y xrel yrel} {
 862         global wins
 863         global win_to_file
 864         global file_to_debug_file
 865         global highlight
 866         global selected_line
 867         global selected_file
 868         global selected_win
 869         global pos_to_breakpoint
 870
 871 # Map TK window name back to file name.
 872
 873         set file $win_to_file($win)
 874
 875         set pos [split [$win index @$xrel,$yrel] .]
 876
 877 # Record selected file and line for menu button actions
 878
 879         set selected_file $file_to_debug_file($file)
 880         set selected_line [lindex $pos 0]
 881         set selected_col [lindex $pos 1]
 882         set selected_win $win
 883
 884 # If we're in the margin, then toggle the breakpoint
 885
 886         if {$selected_col < 8} {
 887                 set pos_break $selected_file:$selected_line
 888                 set pos $file:$selected_line
 889                 set tmp pos_to_breakpoint($pos)
 890                 if {[info exists $tmp]} {
 891                         set bpnum [set $tmp]
 892                         gdb_cmd "delete $bpnum"
 893                 } else {
 894                         gdb_cmd "break $pos_break"
 895                 }
 896                 return
 897         }
 898
 899 # Post the menu near the pointer, (and grab it)
 900
 901         .file_popup entryconfigure 0 -label "$selected_file:$selected_line"
 902
 903         tk_popup .file_popup $x $y
 904 }
 905
 906 #
 907 # Local procedure:
 908 #
 909 #       asm_window_button_1 (win x y xrel yrel) - Handle button 1 in asm window
 910 #
 911 # Description:
 912 #
 913 #       This procedure is invoked as a result of holding down button 1 in the
 914 #       assembly window.  The action taken depends upon where the button was
 915 #       pressed.  If it was in the left margin (the breakpoint column), it
 916 #       sets or clears a breakpoint.  In the main text area, it will pop up a
 917 #       menu.
 918 #
 919
 920 proc asm_window_button_1 {win x y xrel yrel} {
 921         global wins
 922         global win_to_file
 923         global file_to_debug_file
 924         global highlight
 925         global selected_line
 926         global selected_file
 927         global selected_win
 928         global pos_to_breakpoint
 929         global pclist
 930         global cfunc
 931
 932         set pos [split [$win index @$xrel,$yrel] .]
 933
 934 # Record selected file and line for menu button actions
 935
 936         set selected_line [lindex $pos 0]
 937         set selected_col [lindex $pos 1]
 938         set selected_win $win
 939
 940 # Figure out the PC
 941
 942         set pc [lindex $pclist($cfunc) $selected_line]
 943
 944 # If we're in the margin, then toggle the breakpoint
 945
 946         if {$selected_col < 11} {
 947                 set tmp pos_to_breakpoint($pc)
 948                 if {[info exists $tmp]} {
 949                         set bpnum [set $tmp]
 950                         gdb_cmd "delete $bpnum"
 951                 } else {
 952                         gdb_cmd "break *$pc"
 953                 }
 954                 return
 955         }
 956
 957 # Post the menu near the pointer, (and grab it)
 958
 959 #       .file_popup entryconfigure 0 -label "$selected_file:$selected_line"
 960 #       .file_popup post [expr $x-[winfo width .file_popup]/2] [expr $y-10]
 961 #       grab .file_popup
 962 }
 963
 964 #
 965 # Local procedure:
 966 #
 967 #       do_nothing - Does absolutely nothing.
 968 #
 969 # Description:
 970 #
 971 #       This procedure does nothing.  It is used as a placeholder to allow
 972 #       the disabling of bindings that would normally be inherited from the
 973 #       parent widget.  I can't think of any other way to do this.
 974 #
 975
 976 proc do_nothing {} {}
 977
 978 #
 979 # Local procedure:
 980 #
 981 #       not_implemented_yet - warn that a feature is unavailable
 982 #
 983 # Description:
 984 #
 985 #       This procedure warns that something doesn't actually work yet.
 986 #
 987
 988 proc not_implemented_yet {message} {
 989         tk_dialog .unimpl "gdb : unimpl" \
 990                 "$message: not implemented in the interface yet" \
 991                 warning 0 "OK"
 992 }
 993
 994 ##
 995 # Local procedure:
 996 #
 997 #       create_expr_window - Create expression display window
 998 #
 999 # Description:
1000 #
1001 #       Create the expression display window.
1002 #
1003
1004 set expr_num 0
1005 set delete_expr_num 0
1006
1007 # Set delete_expr_num, and set -state of Delete button.
1008 proc expr_update_button {num} {
1009   global delete_expr_num
1010   set delete_expr_num $num
1011   if {$num > 0} then {
1012     set state normal
1013   } else {
1014     set state disabled
1015   }
1016   .expr.buts.delete configure -state $state
1017 }
1018
1019 proc add_expr {expr} {
1020   global expr_update_list
1021   global expr_num
1022
1023   incr expr_num
1024
1025   set e .expr.exprs
1026   set f e$expr_num
1027
1028   checkbutton $e.updates.$f -text "" -relief flat \
1029     -variable expr_update_list($expr_num)
1030   text $e.expressions.$f -width 20 -height 1
1031   $e.expressions.$f insert 0.0 $expr
1032   bind $e.expressions.$f <1> "update_expr $expr_num"
1033   text $e.values.$f -width 20 -height 1
1034
1035   # Set up some bindings.
1036   foreach frame {updates expressions values} {
1037     bind $e.$frame.$f <FocusIn> "expr_update_button $expr_num"
1038     bind $e.$frame.$f <FocusOut> "expr_update_button 0"
1039   }
1040
1041   update_expr $expr_num
1042
1043   pack $e.updates.$f -side top
1044   pack $e.expressions.$f -side top -expand yes -fill x
1045   pack $e.values.$f -side top -expand yes -fill x
1046 }
1047
1048 proc delete_expr {} {
1049   global delete_expr_num
1050   if {$delete_expr_num > 0} then {
1051     set e .expr.exprs
1052     set f e${delete_expr_num}
1053
1054     destroy $e.updates.$f $e.expressions.$f $e.values.$f
1055
1056     # FIXME should we unset an element of expr_update_list here?
1057   }
1058 }
1059
1060 proc update_expr {expr_num} {
1061   global expr_update_list
1062
1063   set e .expr.exprs
1064   set f e${expr_num}
1065
1066   set expr [$e.expressions.$f get 0.0 end]
1067   $e.values.$f delete 0.0 end
1068   if {! [catch {gdb_eval $expr} val]} {
1069     $e.values.$f insert 0.0 $val
1070   } {
1071     # FIXME consider flashing widget here.
1072   }
1073 }
1074
1075 proc update_exprs {} {
1076         global expr_update_list
1077
1078         foreach expr_num [array names expr_update_list] {
1079                 if {$expr_update_list($expr_num)} {
1080                         update_expr $expr_num
1081                 }
1082         }
1083 }
1084
1085 proc create_expr_window {} {
1086
1087         if {[winfo exists .expr]} {raise .expr ; return}
1088
1089         toplevel .expr
1090         wm title .expr "GDB Expressions"
1091         wm iconname .expr "Expressions"
1092
1093         frame .expr.entryframe -borderwidth 2 -relief raised
1094         label .expr.entryframe.entrylab -text "Expression: "
1095         entry .expr.entryframe.entry -borderwidth 2 -relief sunken
1096         bind .expr.entryframe.entry <Return> {
1097           add_expr [.expr.entryframe.entry get]
1098           .expr.entryframe.entry delete 0 end
1099         }
1100
1101         pack .expr.entryframe.entrylab -side left
1102         pack .expr.entryframe.entry -side left -fill x -expand yes
1103
1104         frame .expr.buts -borderwidth 2 -relief raised
1105
1106         button .expr.buts.delete -text Delete -command delete_expr \
1107           -state disabled
1108
1109         button .expr.buts.close -text Close -command {destroy .expr}
1110         button .expr.buts.help -text Help -state disabled
1111
1112         pack .expr.buts.delete -side left
1113         pack .expr.buts.help .expr.buts.close -side right
1114
1115         pack .expr.buts -side bottom -fill x
1116         pack .expr.entryframe -side bottom -fill x
1117
1118         frame .expr.exprs -borderwidth 2 -relief raised
1119
1120         # Use three subframes so columns will line up.  Easier than
1121         # dealing with BLT for a table geometry manager.  Someday Tk
1122         # will have one, use it then.  FIXME this messes up keyboard
1123         # traversal.
1124         frame .expr.exprs.updates -borderwidth 0 -relief flat
1125         frame .expr.exprs.expressions -borderwidth 0 -relief flat
1126         frame .expr.exprs.values -borderwidth 0 -relief flat
1127
1128         label .expr.exprs.updates.label -text Update
1129         pack .expr.exprs.updates.label -side top -anchor w
1130         label .expr.exprs.expressions.label -text Expression
1131         pack .expr.exprs.expressions.label -side top -anchor w
1132         label .expr.exprs.values.label -text Value
1133         pack .expr.exprs.values.label -side top -anchor w
1134
1135         pack .expr.exprs.updates -side left
1136         pack .expr.exprs.values .expr.exprs.expressions \
1137           -side right -expand 1 -fill x
1138
1139         pack .expr.exprs -side top -fill both -expand 1 -anchor w
1140 }
1141
1142 #
1143 # Local procedure:
1144 #
1145 #       display_expression (expression) - Display EXPRESSION in display window
1146 #
1147 # Description:
1148 #
1149 #       Display EXPRESSION and its value in the expression display window.
1150 #
1151
1152 proc display_expression {expression} {
1153         create_expr_window
1154
1155         add_expr $expression
1156 }
1157
1158 #
1159 # Local procedure:
1160 #
1161 #       create_file_win (filename) - Create a win for FILENAME.
1162 #
1163 # Return value:
1164 #
1165 #       The new text widget.
1166 #
1167 # Description:
1168 #
1169 #       This procedure creates a text widget for FILENAME.  It returns the
1170 #       newly created widget.  First, a text widget is created, and given basic
1171 #       configuration info.  Second, all the bindings are setup.  Third, the
1172 #       file FILENAME is read into the text widget.  Fourth, margins and line
1173 #       numbers are added.
1174 #
1175
1176 proc create_file_win {filename debug_file} {
1177         global breakpoint_file
1178         global breakpoint_line
1179         global line_numbers
1180
1181 # Replace all the dirty characters in $filename with clean ones, and generate
1182 # a unique name for the text widget.
1183
1184         regsub -all {\.} $filename {} temp
1185         set win .src.text$temp
1186
1187 # Open the file, and read it into the text widget
1188
1189         if {[catch "open $filename" fh]} {
1190 # File can't be read.  Put error message into .src.nofile window and return.
1191
1192                 catch {destroy .src.nofile}
1193                 text .src.nofile -height 25 -width 88 -relief sunken \
1194                         -borderwidth 2 -yscrollcommand ".src.scroll set" \
1195                         -setgrid true -cursor hand2
1196                 .src.nofile insert 0.0 $fh
1197                 .src.nofile configure -state disabled
1198                 bind .src.nofile <1> do_nothing
1199                 bind .src.nofile <B1-Motion> do_nothing
1200                 return .src.nofile
1201         }
1202
1203 # Actually create and do basic configuration on the text widget.
1204
1205         text $win -height 25 -width 88 -relief sunken -borderwidth 2 \
1206                 -yscrollcommand ".src.scroll set" -setgrid true -cursor hand2
1207
1208 # Setup all the bindings
1209
1210         bind $win <Enter> {focus %W}
1211         bind $win <1> do_nothing
1212         bind $win <B1-Motion> do_nothing
1213
1214         bind $win <Key-Alt_R> do_nothing
1215         bind $win <Key-Alt_L> do_nothing
1216         bind $win <Key-Prior> "$win yview {@0,0 - 10 lines}"
1217         bind $win <Key-Next> "$win yview {@0,0 + 10 lines}"
1218         bind $win <Key-Up> "$win yview {@0,0 - 1 lines}"
1219         bind $win <Key-Down> "$win yview {@0,0 + 1 lines}"
1220         bind $win <Key-Home> {update_listing [gdb_loc]}
1221         bind $win <Key-End> "$win see end"
1222
1223         bind $win n {interactive_cmd next}
1224         bind $win s {interactive_cmd step}
1225         bind $win c {interactive_cmd continue}
1226         bind $win f {interactive_cmd finish}
1227         bind $win u {interactive_cmd up}
1228         bind $win d {interactive_cmd down}
1229
1230         $win delete 0.0 end
1231         $win insert 0.0 [read $fh]
1232         close $fh
1233
1234 # Add margins (for annotations) and a line number to each line (if requested)
1235
1236         set numlines [$win index end]
1237         set numlines [lindex [split $numlines .] 0]
1238         if {$line_numbers} {
1239                 for {set i 1} {$i <= $numlines} {incr i} {
1240                         $win insert $i.0 [format "   %4d " $i]
1241                         $win tag add source $i.8 "$i.0 lineend"
1242                         }
1243         } else {
1244                 for {set i 1} {$i <= $numlines} {incr i} {
1245                         $win insert $i.0 "        "
1246                         $win tag add source $i.8 "$i.0 lineend"
1247                         }
1248         }
1249
1250 # Add the breakdots
1251
1252         foreach i [gdb_sourcelines $debug_file] {
1253                 $win delete $i.0
1254                 $win insert $i.0 "\xa4"
1255                 $win tag add margin $i.0 $i.8
1256                 }
1257
1258         $win tag bind margin <1> {listing_window_button_1 %W %X %Y %x %y}
1259         $win tag bind source <1> {
1260                 %W mark set anchor "@%x,%y wordstart"
1261                 set last [%W index "@%x,%y wordend"]
1262                 %W tag remove sel 0.0 anchor
1263                 %W tag remove sel $last end
1264                 %W tag add sel anchor $last
1265                 }
1266 #       $win tag bind source <Double-Button-1> {
1267 #               %W mark set anchor "@%x,%y wordstart"
1268 #               set last [%W index "@%x,%y wordend"]
1269 #               %W tag remove sel 0.0 anchor
1270 #               %W tag remove sel $last end
1271 #               %W tag add sel anchor $last
1272 #               echo "Selected [selection get]"
1273 #               }
1274         $win tag bind source <B1-Motion> {
1275                 %W tag remove sel 0.0 anchor
1276                 %W tag remove sel $last end
1277                 %W tag add sel anchor @%x,%y
1278                 }
1279         $win tag bind sel <1> break
1280         $win tag bind sel <Double-Button-1> {
1281           display_expression [selection get]
1282           break
1283         }
1284         $win tag bind sel <B1-Motion> break
1285         $win tag lower sel
1286
1287         # Make these bindings do nothing on the text window -- they
1288         # are completely handled by the tag bindings above.
1289         bind $win <1> break
1290         bind $win <B1-Motion> break
1291         bind $win <Double-Button-1> break
1292
1293 # Scan though the breakpoint data base and install any destined for this file
1294
1295         foreach bpnum [array names breakpoint_file] {
1296                 if {$breakpoint_file($bpnum) == $filename} {
1297                         insert_breakpoint_tag $win $breakpoint_line($bpnum)
1298                         }
1299                 }
1300
1301 # Disable the text widget to prevent user modifications
1302
1303         $win configure -state disabled
1304         return $win
1305 }
1306
1307 #
1308 # Local procedure:
1309 #
1310 #       create_asm_win (funcname pc) - Create an assembly win for FUNCNAME.
1311 #
1312 # Return value:
1313 #
1314 #       The new text widget.
1315 #
1316 # Description:
1317 #
1318 #       This procedure creates a text widget for FUNCNAME.  It returns the
1319 #       newly created widget.  First, a text widget is created, and given basic
1320 #       configuration info.  Second, all the bindings are setup.  Third, the
1321 #       function FUNCNAME is read into the text widget.
1322 #
1323
1324 proc create_asm_win {funcname pc} {
1325         global breakpoint_file
1326         global breakpoint_line
1327         global pclist
1328         global disassemble_with_source
1329
1330 # Replace all the dirty characters in $filename with clean ones, and generate
1331 # a unique name for the text widget.
1332
1333         set win [asm_win_name $funcname]
1334
1335 # Actually create and do basic configuration on the text widget.
1336
1337         text $win -height 25 -width 80 -relief sunken -borderwidth 2 \
1338                 -setgrid true -cursor hand2 -yscrollcommand ".asm.scroll set"
1339
1340 # Setup all the bindings
1341
1342         bind $win <Enter> {focus %W}
1343         bind $win <1> {asm_window_button_1 %W %X %Y %x %y; break}
1344         bind $win <B1-Motion> break
1345         bind $win <Double-Button-1> break
1346
1347         bind $win <Key-Alt_R> do_nothing
1348         bind $win <Key-Alt_L> do_nothing
1349
1350         bind $win n {interactive_cmd nexti}
1351         bind $win s {interactive_cmd stepi}
1352         bind $win c {interactive_cmd continue}
1353         bind $win f {interactive_cmd finish}
1354         bind $win u {interactive_cmd up}
1355         bind $win d {interactive_cmd down}
1356
1357 # Disassemble the code, and read it into the new text widget
1358
1359         $win insert end [gdb_disassemble $disassemble_with_source $pc]
1360
1361         set numlines [$win index end]
1362         set numlines [lindex [split $numlines .] 0]
1363         decr numlines
1364
1365 # Delete the first and last lines, cuz these contain useless info
1366
1367 #       $win delete 1.0 2.0
1368 #       $win delete {end - 1 lines} end
1369 #       decr numlines 2
1370
1371 # Add margins (for annotations) and note the PC for each line
1372
1373         catch "unset pclist($funcname)"
1374         lappend pclist($funcname) Unused
1375         for {set i 1} {$i <= $numlines} {incr i} {
1376                 scan [$win get $i.0 "$i.0 lineend"] "%s " pc
1377                 lappend pclist($funcname) $pc
1378                 $win insert $i.0 "    "
1379                 }
1380
1381 # Scan though the breakpoint data base and install any destined for this file
1382
1383 #       foreach bpnum [array names breakpoint_file] {
1384 #               if {$breakpoint_file($bpnum) == $filename} {
1385 #                       insert_breakpoint_tag $win $breakpoint_line($bpnum)
1386 #                       }
1387 #               }
1388
1389 # Disable the text widget to prevent user modifications
1390
1391         $win configure -state disabled
1392         return $win
1393 }
1394
1395 #
1396 # Local procedure:
1397 #
1398 #       update_listing (linespec) - Update the listing window according to
1399 #                                   LINESPEC.
1400 #
1401 # Description:
1402 #
1403 #       This procedure is called from various places to update the listing
1404 #       window based on LINESPEC.  It is usually invoked with the result of
1405 #       gdb_loc.
1406 #
1407 #       It will move the cursor, and scroll the text widget if necessary.
1408 #       Also, it will switch to another text widget if necessary, and update
1409 #       the label widget too.
1410 #
1411 #       LINESPEC is a list of the form:
1412 #
1413 #       { DEBUG_FILE FUNCNAME FILENAME LINE }, where:
1414 #
1415 #       DEBUG_FILE - is the abbreviated form of the file name.  This is usually
1416 #                    the file name string given to the cc command.  This is
1417 #                    primarily needed for breakpoint commands, and when an
1418 #                    abbreviated for of the filename is desired.
1419 #       FUNCNAME - is the name of the function.
1420 #       FILENAME - is the fully qualified (absolute) file name.  It is usually
1421 #                  the same as $PWD/$DEBUG_FILE, where PWD is the working dir
1422 #                  at the time the cc command was given.  This is used to
1423 #                  actually locate the file to be displayed.
1424 #       LINE - The line number to be displayed.
1425 #
1426 #       Usually, this procedure will just move the cursor one line down to the
1427 #       next line to be executed.  However, if the cursor moves out of range
1428 #       or into another file, it will scroll the text widget so that the line
1429 #       of interest is in the middle of the viewable portion of the widget.
1430 #
1431
1432 proc update_listing {linespec} {
1433         global pointers
1434         global wins cfile
1435         global current_label
1436         global win_to_file
1437         global file_to_debug_file
1438         global .src.label
1439
1440 # Rip the linespec apart
1441
1442         lassign $linespec debug_file funcname filename line
1443
1444 # Sometimes there's no source file for this location
1445
1446         if {$filename == ""} {set filename Blank}
1447
1448 # If we want to switch files, we need to unpack the current text widget, and
1449 # stick in the new one.
1450
1451         if {$filename != $cfile} then {
1452                 pack forget $wins($cfile)
1453                 set cfile $filename
1454
1455 # Create a text widget for this file if necessary
1456
1457                 if {![info exists wins($cfile)]} then {
1458                         set wins($cfile) [create_file_win $cfile $debug_file]
1459                         if {$wins($cfile) != ".src.nofile"} {
1460                                 set win_to_file($wins($cfile)) $cfile
1461                                 set file_to_debug_file($cfile) $debug_file
1462                                 set pointers($cfile) 1.1
1463                                 }
1464                         }
1465
1466 # Pack the text widget into the listing widget, and scroll to the right place
1467
1468                 pack $wins($cfile) -side left -expand yes -in .src.info \
1469                         -fill both -after .src.scroll
1470
1471 # Make the scrollbar point at the new text widget
1472
1473                 .src.scroll configure -command "$wins($cfile) yview"
1474
1475                  # $wins($cfile) see "${line}.0 linestart"
1476                  ensure_line_visible $wins($cfile) $line
1477                 }
1478
1479 # Update the label widget in case the filename or function name has changed
1480
1481         if {$current_label != "$filename.$funcname"} then {
1482                 set tail [expr [string last / $filename] + 1]
1483                 set .src.label "[string range $filename $tail end] : ${funcname}()"
1484 #               .src.label configure -text "[string range $filename $tail end] : ${funcname}()"
1485                 set current_label $filename.$funcname
1486                 }
1487
1488 # Update the pointer, scrolling the text widget if necessary to keep the
1489 # pointer in an acceptable part of the screen.
1490
1491         if {[info exists pointers($cfile)]} then {
1492                 $wins($cfile) configure -state normal
1493                 set pointer_pos $pointers($cfile)
1494                 $wins($cfile) configure -state normal
1495                 $wins($cfile) delete $pointer_pos "$pointer_pos + 2 char"
1496                 $wins($cfile) insert $pointer_pos "  "
1497
1498                 set pointer_pos [$wins($cfile) index $line.1]
1499                 set pointers($cfile) $pointer_pos
1500
1501                 $wins($cfile) delete $pointer_pos "$pointer_pos + 2 char"
1502                 $wins($cfile) insert $pointer_pos "->"
1503                 ensure_line_visible $wins($cfile) $line
1504                 $wins($cfile) configure -state disabled
1505                 }
1506 }
1507
1508 #
1509 # Local procedure:
1510 #
1511 #       create_asm_window - Open up the assembly window.
1512 #
1513 # Description:
1514 #
1515 #       Create an assembly window if it doesn't exist.
1516 #
1517
1518 proc create_asm_window {} {
1519         global cfunc
1520
1521         if {[winfo exists .asm]} {raise .asm ; return}
1522
1523         set cfunc *None*
1524         set win [asm_win_name $cfunc]
1525
1526         build_framework .asm Assembly "*NIL*"
1527
1528 # First, delete all the old menu entries
1529
1530         .asm.menubar.view.menu delete 0 last
1531
1532         .asm.text configure -yscrollcommand ".asm.scroll set"
1533
1534         frame .asm.row1
1535         frame .asm.row2
1536
1537         button .asm.stepi -width 6 -text Stepi \
1538                 -command {interactive_cmd stepi}
1539         button .asm.nexti -width 6 -text Nexti \
1540                 -command {interactive_cmd nexti}
1541         button .asm.continue -width 6 -text Cont \
1542                 -command {interactive_cmd continue}
1543         button .asm.finish -width 6 -text Finish \
1544                 -command {interactive_cmd finish}
1545         button .asm.up -width 6 -text Up -command {interactive_cmd up}
1546         button .asm.down -width 6 -text Down \
1547                 -command {interactive_cmd down}
1548         button .asm.bottom -width 6 -text Bottom \
1549                 -command {interactive_cmd {frame 0}}
1550
1551         pack .asm.stepi .asm.continue .asm.up .asm.bottom -side left -padx 3 -pady 5 -in .asm.row1
1552         pack .asm.nexti .asm.finish .asm.down -side left -padx 3 -pady 5 -in .asm.row2
1553
1554         pack .asm.row2 .asm.row1 -side bottom -anchor w -before .asm.info
1555
1556         update
1557
1558         update_assembly [gdb_loc]
1559
1560 # We do this update_assembly to get the proper value of disassemble-from-exec.
1561
1562 # exec file menu item
1563         .asm.menubar.view.menu add radiobutton -label "Exec file" \
1564                 -variable disassemble-from-exec -value 1
1565 # target memory menu item
1566         .asm.menubar.view.menu add radiobutton -label "Target memory" \
1567                 -variable disassemble-from-exec -value 0
1568
1569 # Disassemble with source
1570         .asm.menubar.view.menu add checkbutton -label "Source" \
1571                 -variable disassemble_with_source -onvalue source \
1572                 -offvalue nosource -command {
1573                         foreach asm [info command .asm.func_*] {
1574                                 destroy $asm
1575                                 }
1576                         set cfunc NIL
1577                         update_assembly [gdb_loc]
1578                 }
1579 }
1580
1581 proc reg_config_menu {} {
1582         catch {destroy .reg.config}
1583         toplevel .reg.config
1584         wm geometry .reg.config +300+300
1585         wm title .reg.config "Register configuration"
1586         wm iconname .reg.config "Reg config"
1587         set regnames [gdb_regnames]
1588         set num_regs [llength $regnames]
1589
1590         frame .reg.config.buts
1591
1592         button .reg.config.done -text " Done " -command "
1593                 recompute_reg_display_list $num_regs
1594                 populate_reg_window
1595                 update_registers all
1596                 destroy .reg.config "
1597
1598         button .reg.config.update -text Update -command "
1599                 recompute_reg_display_list $num_regs
1600                 populate_reg_window
1601                 update_registers all "
1602
1603         pack .reg.config.buts -side bottom -fill x
1604
1605         pack .reg.config.done -side left -fill x -expand yes -in .reg.config.buts
1606         pack .reg.config.update -side right -fill x -expand yes -in .reg.config.buts
1607
1608 # Since there can be lots of registers, we build the window with no more than
1609 # 32 rows, and as many columns as needed.
1610
1611 # First, figure out how many columns we need and create that many column frame
1612 # widgets
1613
1614         set ncols [expr ($num_regs + 31) / 32]
1615
1616         for {set col 0} {$col < $ncols} {incr col} {
1617                 frame .reg.config.col$col
1618                 pack .reg.config.col$col -side left -anchor n
1619         }
1620
1621 # Now, create the checkbutton widgets and pack them in the appropriate columns
1622
1623         set col 0
1624         set row 0
1625         for {set regnum 0} {$regnum < $num_regs} {incr regnum} {
1626                 set regname [lindex $regnames $regnum]
1627                 checkbutton .reg.config.col$col.$row -text $regname -pady 0 \
1628                         -variable regena($regnum) -relief flat -anchor w -bd 1
1629
1630                 pack .reg.config.col$col.$row -side top -fill both
1631
1632                 incr row
1633                 if {$row >= 32} {
1634                         incr col
1635                         set row 0
1636                 }
1637         }
1638 }
1639
1640 #
1641 # Local procedure:
1642 #
1643 #       create_registers_window - Open up the register display window.
1644 #
1645 # Description:
1646 #
1647 #       Create the register display window, with automatic updates.
1648 #
1649
1650 proc create_registers_window {} {
1651         global reg_format
1652
1653         if {[winfo exists .reg]} {raise .reg ; return}
1654
1655 # Create an initial register display list consisting of all registers
1656
1657         if {![info exists reg_format]} {
1658                 global reg_display_list
1659                 global changed_reg_list
1660                 global regena
1661
1662                 set reg_format {}
1663                 set num_regs [llength [gdb_regnames]]
1664                 for {set regnum 0} {$regnum < $num_regs} {incr regnum} {
1665                         set regena($regnum) 1
1666                 }
1667                 recompute_reg_display_list $num_regs
1668                 set changed_reg_list $reg_display_list
1669         }
1670
1671         build_framework .reg Registers
1672
1673 # First, delete all the old menu entries
1674
1675         .reg.menubar.view.menu delete 0 last
1676
1677 # Hex menu item
1678         .reg.menubar.view.menu add radiobutton -label Hex \
1679                 -command {set reg_format x ; update_registers all}
1680
1681 # Decimal menu item
1682         .reg.menubar.view.menu add radiobutton -label Decimal \
1683                 -command {set reg_format d ; update_registers all}
1684
1685 # Octal menu item
1686         .reg.menubar.view.menu add radiobutton -label Octal \
1687                 -command {set reg_format o ; update_registers all}
1688
1689 # Natural menu item
1690         .reg.menubar.view.menu add radiobutton -label Natural \
1691                 -command {set reg_format {} ; update_registers all}
1692
1693 # Config menu item
1694         .reg.menubar.view.menu add separator
1695
1696         .reg.menubar.view.menu add command -label Config -command {
1697                 reg_config_menu }
1698
1699         destroy .reg.label
1700
1701 # Install the reg names
1702
1703         populate_reg_window
1704         update_registers all
1705 }
1706
1707 # Convert regena into a list of the enabled $regnums
1708
1709 proc recompute_reg_display_list {num_regs} {
1710         global reg_display_list
1711         global regmap
1712         global regena
1713
1714         catch {unset reg_display_list}
1715
1716         set line 1
1717         for {set regnum 0} {$regnum < $num_regs} {incr regnum} {
1718
1719                 if {[set regena($regnum)] != 0} {
1720                         lappend reg_display_list $regnum
1721                         set regmap($regnum) $line
1722                         incr line
1723                 }
1724         }
1725 }
1726
1727 # Fill out the register window with the names of the regs specified in
1728 # reg_display_list.
1729
1730 proc populate_reg_window {} {
1731         global max_regname_width
1732         global reg_display_list
1733
1734         .reg.text configure -state normal
1735
1736         .reg.text delete 0.0 end
1737
1738         set regnames [eval gdb_regnames $reg_display_list]
1739
1740 # Figure out the longest register name
1741
1742         set max_regname_width 0
1743
1744         foreach reg $regnames {
1745                 set len [string length $reg]
1746                 if {$len > $max_regname_width} {set max_regname_width $len}
1747         }
1748
1749         set width [expr $max_regname_width + 15]
1750
1751         set height [llength $regnames]
1752
1753         if {$height > 60} {set height 60}
1754
1755         .reg.text configure -height $height -width $width
1756
1757         foreach reg $regnames {
1758                 .reg.text insert end [format "%-*s \n" $max_regname_width ${reg}]
1759         }
1760
1761         .reg.text yview 0
1762         .reg.text configure -state disabled
1763 }
1764
1765 #
1766 # Local procedure:
1767 #
1768 #       update_registers - Update the registers window.
1769 #
1770 # Description:
1771 #
1772 #       This procedure updates the registers window.
1773 #
1774
1775 proc update_registers {which} {
1776         global max_regname_width
1777         global reg_format
1778         global reg_display_list
1779         global changed_reg_list
1780         global highlight
1781         global regmap
1782
1783         set margin [expr $max_regname_width + 1]
1784         set win .reg.text
1785         set winwidth [lindex [$win configure -width] 4]
1786         set valwidth [expr $winwidth - $margin]
1787
1788         $win configure -state normal
1789
1790         if {$which == "all"} {
1791                 set lineindex 1
1792                 foreach regnum $reg_display_list {
1793                         set regval [gdb_fetch_registers $reg_format $regnum]
1794                         set regval [format "%-*s" $valwidth $regval]
1795                         $win delete $lineindex.$margin "$lineindex.0 lineend"
1796                         $win insert $lineindex.$margin $regval
1797                         incr lineindex
1798                 }
1799                 $win configure -state disabled
1800                 return
1801         }
1802
1803 # Unhighlight the old values
1804
1805         foreach regnum $changed_reg_list {
1806                 $win tag delete $win.$regnum
1807         }
1808
1809 # Now, highlight the changed values of the interesting registers
1810
1811         set changed_reg_list [eval gdb_changed_register_list $reg_display_list]
1812
1813         set lineindex 1
1814         foreach regnum $changed_reg_list {
1815                 set regval [gdb_fetch_registers $reg_format $regnum]
1816                 set regval [format "%-*s" $valwidth $regval]
1817
1818                 set lineindex $regmap($regnum)
1819                 $win delete $lineindex.$margin "$lineindex.0 lineend"
1820                 $win insert $lineindex.$margin $regval
1821                 $win tag add $win.$regnum $lineindex.0 "$lineindex.0 lineend"
1822                 eval $win tag configure $win.$regnum $highlight
1823         }
1824
1825         $win configure -state disabled
1826 }
1827
1828 #
1829 # Local procedure:
1830 #
1831 #       update_assembly - Update the assembly window.
1832 #
1833 # Description:
1834 #
1835 #       This procedure updates the assembly window.
1836 #
1837
1838 proc update_assembly {linespec} {
1839         global asm_pointers
1840         global wins cfunc
1841         global current_label
1842         global win_to_file
1843         global file_to_debug_file
1844         global current_asm_label
1845         global pclist
1846         global .asm.label
1847
1848 # Rip the linespec apart
1849
1850         lassign $linespec debug_file funcname filename line pc
1851
1852         set win [asm_win_name $cfunc]
1853
1854 # Sometimes there's no source file for this location
1855
1856         if {$filename == ""} {set filename Blank}
1857
1858 # If we want to switch funcs, we need to unpack the current text widget, and
1859 # stick in the new one.
1860
1861         if {$funcname != $cfunc } {
1862                 set oldwin $win
1863                 set cfunc $funcname
1864
1865                 set win [asm_win_name $cfunc]
1866
1867 # Create a text widget for this func if necessary
1868
1869                 if {![winfo exists $win]} {
1870                         create_asm_win $cfunc $pc
1871                         set asm_pointers($cfunc) 1.1
1872                         set current_asm_label NIL
1873                         }
1874
1875 # Pack the text widget, and scroll to the right place
1876
1877                 pack forget $oldwin
1878                 pack $win -side left -expand yes -fill both \
1879                         -after .asm.scroll
1880                 .asm.scroll configure -command "$win yview"
1881                 set line [pc_to_line $pclist($cfunc) $pc]
1882                 ensure_line_visible $win $line
1883                 update
1884                 }
1885
1886 # Update the label widget in case the filename or function name has changed
1887
1888         if {$current_asm_label != "$pc $funcname"} then {
1889                 set .asm.label "$pc $funcname"
1890                 set current_asm_label "$pc $funcname"
1891                 }
1892
1893 # Update the pointer, scrolling the text widget if necessary to keep the
1894 # pointer in an acceptable part of the screen.
1895
1896         if {[info exists asm_pointers($cfunc)]} then {
1897                 $win configure -state normal
1898                 set pointer_pos $asm_pointers($cfunc)
1899                 $win configure -state normal
1900                 $win delete $pointer_pos "$pointer_pos + 2 char"
1901                 $win insert $pointer_pos "  "
1902
1903 # Map the PC back to a line in the window
1904
1905                 set line [pc_to_line $pclist($cfunc) $pc]
1906
1907                 if {$line == -1} {
1908                         echo "Can't find PC $pc"
1909                         return
1910                         }
1911
1912                 set pointer_pos [$win index $line.1]
1913                 set asm_pointers($cfunc) $pointer_pos
1914
1915                 $win delete $pointer_pos "$pointer_pos + 2 char"
1916                 $win insert $pointer_pos "->"
1917                 ensure_line_visible $win $line
1918                 $win configure -state disabled
1919                 }
1920 }
1921
1922 #
1923 # Local procedure:
1924 #
1925 #       update_ptr - Update the listing window.
1926 #
1927 # Description:
1928 #
1929 #       This routine will update the listing window using the result of
1930 #       gdb_loc.
1931 #
1932
1933 proc update_ptr {} {
1934         update_listing [gdb_loc]
1935         if {[winfo exists .asm]} {
1936                 update_assembly [gdb_loc]
1937         }
1938         if {[winfo exists .reg]} {
1939                 update_registers changed
1940         }
1941         if {[winfo exists .expr]} {
1942                 update_exprs
1943         }
1944         if {[winfo exists .autocmd]} {
1945                 update_autocmd
1946         }
1947 }
1948
1949 # Make toplevel window disappear
1950
1951 wm withdraw .
1952
1953 proc files_command {} {
1954   toplevel .files_window
1955
1956   wm minsize .files_window 1 1
1957   #     wm overrideredirect .files_window true
1958   listbox .files_window.list -geometry 30x20 -setgrid true \
1959     -yscrollcommand {.files_window.scroll set} -relief sunken \
1960     -borderwidth 2
1961   scrollbar .files_window.scroll -orient vertical \
1962     -command {.files_window.list yview} -relief sunken
1963   button .files_window.close -text Close -command {destroy .files_window}
1964   .files_window.list configure -selectmode single
1965
1966   # Get the file list from GDB, sort it, and format it as one entry per line.
1967   set lastSeen {};                      # Value that won't appear in
1968                                         # list.
1969   set fileList {}
1970   foreach file [lsort [gdb_listfiles]] {
1971     if {$file != $lastSeen} then {
1972       lappend fileList $file
1973       set lastSeen $file
1974     }
1975   }
1976   set filelist [join [lsort [gdb_listfiles]] "\n"]
1977
1978   # Insert the file list into the widget
1979
1980   eval .files_window.list insert 0 $filelist
1981
1982   pack .files_window.close -side bottom -fill x -expand no -anchor s
1983   pack .files_window.scroll -side right -fill both
1984   pack .files_window.list -side left -fill both -expand yes
1985   bind .files_window.list <Any-ButtonRelease-1> {
1986     set file [%W get [%W curselection]]
1987     gdb_cmd "list $file:1,0"
1988     update_listing [gdb_loc $file:1]
1989     destroy .files_window
1990   }
1991 }
1992
1993 button .files -text Files -command files_command
1994
1995 proc apply_filespec {label default command} {
1996     set filename [FSBox $label $default]
1997     if {$filename != ""} {
1998         if {[catch {gdb_cmd "$command $filename"} retval]} {
1999             tk_dialog .filespec_error "gdb : $label error" \
2000               "Error in command \"$command $filename\"" error \
2001               0 Dismiss
2002             return
2003         }
2004     update_ptr
2005     }
2006 }
2007
2008 # Run editor.
2009 proc run_editor {editor file} {
2010   # FIXME should use index of line in middle of window, not line at
2011   # top.
2012   global wins
2013   set lineNo [lindex [split [$wins($file) index @0,0] .] 0]
2014   exec $editor +$lineNo $file
2015 }
2016
2017 # Setup command window
2018 proc build_framework {win {title GDBtk} {label {}}} {
2019         global ${win}.label
2020
2021         toplevel ${win}
2022         wm title ${win} $title
2023         wm minsize ${win} 1 1
2024
2025         frame ${win}.menubar
2026
2027         menubutton ${win}.menubar.file -padx 12 -text File \
2028                 -menu ${win}.menubar.file.menu -underline 0
2029
2030         menu ${win}.menubar.file.menu
2031         ${win}.menubar.file.menu add command -label File... \
2032                 -command {apply_filespec File a.out file}
2033         ${win}.menubar.file.menu add command -label Target... \
2034                 -command { not_implemented_yet "target" }
2035         ${win}.menubar.file.menu add command -label Edit \
2036                 -command {run_editor $editor $cfile}
2037         ${win}.menubar.file.menu add separator
2038         ${win}.menubar.file.menu add command -label "Exec File..." \
2039                 -command {apply_filespec {Exec File} a.out exec-file}
2040         ${win}.menubar.file.menu add command -label "Symbol File..." \
2041                 -command {apply_filespec {Symbol File} a.out symbol-file}
2042         ${win}.menubar.file.menu add command -label "Add Symbol File..." \
2043                 -command { not_implemented_yet "menu item, add symbol file" }
2044         ${win}.menubar.file.menu add command -label "Core File..." \
2045                 -command {apply_filespec {Core File} core core-file}
2046
2047         ${win}.menubar.file.menu add separator
2048         ${win}.menubar.file.menu add command -label Close \
2049                 -command "destroy ${win}"
2050         ${win}.menubar.file.menu add separator
2051         ${win}.menubar.file.menu add command -label Quit \
2052                 -command {interactive_cmd quit}
2053
2054         menubutton ${win}.menubar.commands -padx 12 -text Commands \
2055                 -menu ${win}.menubar.commands.menu -underline 0
2056
2057         menu ${win}.menubar.commands.menu
2058         ${win}.menubar.commands.menu add command -label Run \
2059                 -command {interactive_cmd run}
2060         ${win}.menubar.commands.menu add command -label Step \
2061                 -command {interactive_cmd step}
2062         ${win}.menubar.commands.menu add command -label Next \
2063                 -command {interactive_cmd next}
2064         ${win}.menubar.commands.menu add command -label Continue \
2065                 -command {interactive_cmd continue}
2066         ${win}.menubar.commands.menu add separator
2067         ${win}.menubar.commands.menu add command -label Stepi \
2068                 -command {interactive_cmd stepi}
2069         ${win}.menubar.commands.menu add command -label Nexti \
2070                 -command {interactive_cmd nexti}
2071
2072         menubutton ${win}.menubar.view -padx 12 -text Options \
2073                 -menu ${win}.menubar.view.menu -underline 0
2074
2075         menu ${win}.menubar.view.menu
2076         ${win}.menubar.view.menu add command -label Hex \
2077                 -command {echo Hex}
2078         ${win}.menubar.view.menu add command -label Decimal \
2079                 -command {echo Decimal}
2080         ${win}.menubar.view.menu add command -label Octal \
2081                 -command {echo Octal}
2082
2083         menubutton ${win}.menubar.window -padx 12 -text Window \
2084                 -menu ${win}.menubar.window.menu -underline 0
2085
2086         menu ${win}.menubar.window.menu
2087         ${win}.menubar.window.menu add command -label Command \
2088                 -command create_command_window
2089         ${win}.menubar.window.menu add separator
2090         ${win}.menubar.window.menu add command -label Source \
2091                 -command create_source_window
2092         ${win}.menubar.window.menu add command -label Assembly \
2093                 -command create_asm_window
2094         ${win}.menubar.window.menu add separator
2095         ${win}.menubar.window.menu add command -label Registers \
2096                 -command create_registers_window
2097         ${win}.menubar.window.menu add command -label Expressions \
2098                 -command create_expr_window
2099         ${win}.menubar.window.menu add command -label "Auto Command" \
2100                 -command create_autocmd_window
2101         ${win}.menubar.window.menu add command -label Breakpoints \
2102                 -command create_breakpoints_window
2103
2104 #       ${win}.menubar.window.menu add separator
2105 #       ${win}.menubar.window.menu add command -label Files \
2106 #               -command { not_implemented_yet "files window" }
2107
2108         menubutton ${win}.menubar.help -padx 12 -text Help \
2109                 -menu ${win}.menubar.help.menu -underline 0
2110
2111         menu ${win}.menubar.help.menu
2112         ${win}.menubar.help.menu add command -label "with GDBtk" \
2113                 -command {echo "with GDBtk"}
2114         ${win}.menubar.help.menu add command -label "with this window" \
2115                 -command {echo "with this window"}
2116         ${win}.menubar.help.menu add command -label "Report bug" \
2117                 -command {exec send-pr}
2118
2119         pack    ${win}.menubar.file \
2120                 ${win}.menubar.view \
2121                 ${win}.menubar.window -side left
2122         pack    ${win}.menubar.help -side right
2123
2124         frame ${win}.info
2125         text ${win}.text -height 25 -width 80 -relief sunken -borderwidth 2 \
2126                 -setgrid true -cursor hand2 -yscrollcommand "${win}.scroll set"
2127
2128         set ${win}.label $label
2129         label ${win}.label -textvariable ${win}.label -borderwidth 2 -relief sunken
2130
2131         scrollbar ${win}.scroll -orient vertical -command "${win}.text yview" \
2132                 -relief sunken
2133
2134         bind $win <Key-Alt_R> do_nothing
2135         bind $win <Key-Alt_L> do_nothing
2136
2137         pack ${win}.label -side bottom -fill x -in ${win}.info
2138         pack ${win}.scroll -side right -fill y -in ${win}.info
2139         pack ${win}.text -side left -expand yes -fill both -in ${win}.info
2140
2141         pack ${win}.menubar -side top -fill x
2142         pack ${win}.info -side top -fill both -expand yes
2143 }
2144
2145 proc create_source_window {} {
2146         global wins
2147         global cfile
2148
2149         if {[winfo exists .src]} {raise .src ; return}
2150
2151         build_framework .src Source "*No file*"
2152
2153 # First, delete all the old view menu entries
2154
2155         .src.menubar.view.menu delete 0 last
2156
2157 # Source file selection
2158         .src.menubar.view.menu add command -label "Select source file" \
2159                 -command files_command
2160
2161 # Line numbers enable/disable menu item
2162         .src.menubar.view.menu add checkbutton -variable line_numbers \
2163                 -label "Line numbers" -onvalue 1 -offvalue 0 -command {
2164                 foreach source [array names wins] {
2165                         if {$source == "Blank"} continue
2166                         destroy $wins($source)
2167                         unset wins($source)
2168                         }
2169                 set cfile Blank
2170                 update_listing [gdb_loc]
2171                 }
2172
2173         frame .src.row1
2174         frame .src.row2
2175
2176         button .src.start -width 6 -text Start -command \
2177                 {interactive_cmd {break main}
2178                  interactive_cmd {enable delete $bpnum}
2179                  interactive_cmd run }
2180         button .src.stop -width 6 -text Stop -fg red -activeforeground red \
2181                 -state disabled -command gdb_stop
2182         button .src.step -width 6 -text Step \
2183                 -command {interactive_cmd step}
2184         button .src.next -width 6 -text Next \
2185                 -command {interactive_cmd next}
2186         button .src.continue -width 6 -text Cont \
2187                 -command {interactive_cmd continue}
2188         button .src.finish -width 6 -text Finish \
2189                 -command {interactive_cmd finish}
2190         button .src.up -width 6 -text Up \
2191                 -command {interactive_cmd up}
2192         button .src.down -width 6 -text Down \
2193                 -command {interactive_cmd down}
2194         button .src.bottom -width 6 -text Bottom \
2195                 -command {interactive_cmd {frame 0}}
2196
2197         pack .src.start .src.step .src.continue .src.up .src.bottom \
2198                 -side left -padx 3 -pady 5 -in .src.row1
2199         pack .src.stop .src.next .src.finish .src.down -side left -padx 3 \
2200                 -pady 5 -in .src.row2
2201
2202         pack .src.row2 .src.row1 -side bottom -anchor w -before .src.info
2203
2204         $wins($cfile) insert 0.0 "  This page intentionally left blank."
2205         $wins($cfile) configure -width 88 -state disabled \
2206                 -yscrollcommand ".src.scroll set"
2207 }
2208
2209 proc update_autocmd {} {
2210         global .autocmd.label
2211         global accumulate_output
2212
2213         catch {gdb_cmd "${.autocmd.label}"} result
2214         if {!$accumulate_output} { .autocmd.text delete 0.0 end }
2215         .autocmd.text insert end $result
2216         .autocmd.text see end
2217 }
2218
2219 proc create_autocmd_window {} {
2220   global .autocmd.label
2221
2222   if {[winfo exists .autocmd]} {raise .autocmd ; return}
2223
2224   build_framework .autocmd "Auto Command" ""
2225
2226   # First, delete all the old view menu entries
2227
2228   .autocmd.menubar.view.menu delete 0 last
2229
2230   # Accumulate output option
2231
2232   .autocmd.menubar.view.menu add checkbutton \
2233     -variable accumulate_output \
2234     -label "Accumulate output" -onvalue 1 -offvalue 0
2235
2236   # Now, create entry widget with label
2237
2238   frame .autocmd.entryframe
2239
2240   entry .autocmd.entry -borderwidth 2 -relief sunken
2241   bind .autocmd.entry <Key-Return> {
2242     set .autocmd.label [.autocmd.entry get]
2243     .autocmd.entry delete 0 end
2244   }
2245
2246   label .autocmd.entrylab -text "Command: "
2247
2248   pack .autocmd.entrylab -in .autocmd.entryframe -side left
2249   pack .autocmd.entry -in .autocmd.entryframe -side left -fill x -expand yes
2250
2251   pack .autocmd.entryframe -side bottom -fill x -before .autocmd.info
2252 }
2253
2254 # Return the longest common prefix in SLIST.  Can be empty string.
2255
2256 proc find_lcp slist {
2257 # Handle trivial cases where list is empty or length 1
2258         if {[llength $slist] <= 1} {return [lindex $slist 0]}
2259
2260         set prefix [lindex $slist 0]
2261         set prefixlast [expr [string length $prefix] - 1]
2262
2263         foreach str [lrange $slist 1 end] {
2264                 set test_str [string range $str 0 $prefixlast]
2265                 while {[string compare $test_str $prefix] != 0} {
2266                         decr prefixlast
2267                         set prefix [string range $prefix 0 $prefixlast]
2268                         set test_str [string range $str 0 $prefixlast]
2269                 }
2270                 if {$prefixlast < 0} break
2271         }
2272         return $prefix
2273 }
2274
2275 # Look through COMPLETIONS to generate the suffix needed to do command
2276 # completion on CMD.
2277
2278 proc find_completion {cmd completions} {
2279 # Get longest common prefix
2280         set lcp [find_lcp $completions]
2281         set cmd_len [string length $cmd]
2282 # Return suffix beyond end of cmd
2283         return [string range $lcp $cmd_len end]
2284 }
2285
2286 proc create_command_window {} {
2287         global command_line
2288         global saw_tab
2289
2290         set saw_tab 0
2291         if {[winfo exists .cmd]} {raise .cmd ; return}
2292
2293         build_framework .cmd Command "* Command Buffer *"
2294
2295         # Put focus on command area.
2296         focus .cmd.text
2297
2298         set command_line {}
2299
2300         gdb_cmd {set language c}
2301         gdb_cmd {set height 0}
2302         gdb_cmd {set width 0}
2303
2304         # Tk uses the Motifism that Delete means delete forward.  I
2305         # hate this, and I'm not gonna take it any more.
2306         set bsBinding [bind Text <BackSpace>]
2307         bind .cmd.text <Delete> "delete_char %W ; $bsBinding; break"
2308         bind .cmd.text <BackSpace> {delete_char %W}
2309         bind .cmd.text <Control-c> gdb_stop
2310         bind .cmd.text <Control-u> {delete_line %W ; break}
2311         bind .cmd.text <Any-Key> {
2312           set saw_tab 0
2313           %W insert end %A
2314           %W see end
2315           append command_line %A
2316           break
2317         }
2318         bind .cmd.text <Key-Return> {
2319           set saw_tab 0
2320           %W insert end \n
2321           interactive_cmd $command_line
2322
2323           # %W see end
2324           # catch "gdb_cmd [list $command_line]" result
2325           # %W insert end $result
2326           set command_line {}
2327           # update_ptr
2328           %W insert end "(gdb) "
2329           %W see end
2330           break
2331         }
2332         bind .cmd.text <Button-2> {
2333           %W insert end [selection get]
2334           %W see end
2335           append command_line [selection get]
2336           break
2337         }
2338         bind .cmd.text <B2-Motion> break
2339         bind .cmd.text <ButtonRelease-2> break
2340         bind .cmd.text <Key-Tab> {
2341           set choices [gdb_cmd "complete $command_line"]
2342           set choices [string trimright $choices \n]
2343           set choices [split $choices \n]
2344
2345           # Just do completion if this is the first tab
2346           if {!$saw_tab} {
2347             set saw_tab 1
2348             set completion [find_completion $command_line $choices]
2349             append command_line $completion
2350             # Here is where the completion is actually done.  If there
2351             # is one match, complete the command and print a space.
2352             # If two or more matches, complete the command and beep.
2353             # If no match, just beep.
2354             switch [llength $choices] {
2355               0 {}
2356               1 {
2357                 %W insert end "$completion "
2358                 append command_line " "
2359                 return
2360               }
2361
2362               default {
2363                 %W insert end $completion
2364               }
2365             }
2366             bell
2367             %W see end
2368           } else {
2369             # User hit another consecutive tab.  List the choices.
2370             # Note that at this point, choices may contain commands
2371             # with spaces.  We have to lop off everything before (and
2372             # including) the last space so that the completion list
2373             # only shows the possibilities for the last token.
2374             set choices [lsort $choices]
2375             if {[regexp ".* " $command_line prefix]} {
2376               regsub -all $prefix $choices {} choices
2377             }
2378             %W insert end "\n[join $choices { }]\n(gdb) $command_line"
2379             %W see end
2380           }
2381           break
2382         }
2383 }
2384
2385 proc delete_char {win} {
2386   global command_line
2387   set tmp [expr [string length $command_line] - 2]
2388   set command_line [string range $command_line 0 $tmp]
2389 }
2390
2391 proc delete_line {win} {
2392   global command_line
2393
2394   $win delete {end linestart + 6 chars} end
2395   $win see insert
2396   set command_line {}
2397 }
2398
2399 #
2400 # fileselect.tcl --
2401 # simple file selector.
2402 #
2403 # Mario Jorge Silva                               msilva@cs.Berkeley.EDU
2404 # University of California Berkeley                 Ph:    +1(510)642-8248
2405 # Computer Science Division, 571 Evans Hall         Fax:   +1(510)642-5775
2406 # Berkeley CA 94720
2407 #
2408 #
2409 # Copyright 1993 Regents of the University of California
2410 # Permission to use, copy, modify, and distribute this
2411 # software and its documentation for any purpose and without
2412 # fee is hereby granted, provided that this copyright
2413 # notice appears in all copies.  The University of California
2414 # makes no representations about the suitability of this
2415 # software for any purpose.  It is provided "as is" without
2416 # express or implied warranty.
2417 #
2418
2419
2420 # names starting with "fileselect" are reserved by this module
2421 # no other names used.
2422 # Hack - FSBox is defined instead of fileselect for backwards compatibility
2423
2424
2425 # this is the proc that creates the file selector box
2426 # purpose - comment string
2427 # defaultName - initial value for name
2428 # cmd - command to eval upon OK
2429 # errorHandler - command to eval upon Cancel
2430 # If neither cmd or errorHandler are specified, the return value
2431 # of the FSBox procedure is the selected file name.
2432
2433 proc FSBox {{purpose "Select file:"} {defaultName ""} {cmd ""} {errorHandler
2434 ""}} {
2435     global fileselect
2436     set w .fileSelect
2437     if {[Exwin_Toplevel $w "Select File" FileSelect]} {
2438         # path independent names for the widgets
2439
2440         set fileselect(list) $w.file.sframe.list
2441         set fileselect(scroll) $w.file.sframe.scroll
2442         set fileselect(direntry) $w.file.f1.direntry
2443         set fileselect(entry) $w.file.f2.entry
2444         set fileselect(ok) $w.but.ok
2445         set fileselect(cancel) $w.but.cancel
2446         set fileselect(msg) $w.label
2447
2448         set fileselect(result) ""       ;# value to return if no callback procedures
2449
2450         # widgets
2451         Widget_Label $w label {top fillx pady 10 padx 20} -anchor w -width 24
2452         Widget_Frame $w file Dialog {left expand fill} -bd 10
2453
2454         Widget_Frame $w.file f1 Exmh {top fillx}
2455         Widget_Label $w.file.f1 label {left} -text "Dir"
2456         Widget_Entry $w.file.f1 direntry {right fillx expand}  -width 30
2457
2458         Widget_Frame $w.file sframe
2459
2460         scrollbar $w.file.sframe.yscroll -relief sunken \
2461                 -command [list $w.file.sframe.list yview]
2462         listbox $w.file.sframe.list -relief sunken \
2463                 -yscroll [list $w.file.sframe.yscroll set] -setgrid 1
2464         pack append $w.file.sframe \
2465                 $w.file.sframe.yscroll {right filly} \
2466                 $w.file.sframe.list {left expand fill}
2467
2468         Widget_Frame $w.file f2 Exmh {top fillx}
2469         Widget_Label $w.file.f2 label {left} -text Name
2470         Widget_Entry $w.file.f2 entry {right fillx expand}
2471
2472         # buttons
2473         $w.but.quit configure -text Cancel \
2474                 -command [list fileselect.cancel.cmd $w]
2475
2476         Widget_AddBut $w.but ok OK \
2477                 [list fileselect.ok.cmd $w $cmd $errorHandler] {left padx 1}
2478
2479         Widget_AddBut $w.but list List \
2480                 [list fileselect.list.cmd $w] {left padx 1}
2481         Widget_CheckBut $w.but listall "List all" fileselect(pattern)
2482         $w.but.listall configure -onvalue "{*,.*}" -offvalue "*" \
2483             -command {fileselect.list.cmd $fileselect(direntry)}
2484         $w.but.listall deselect
2485
2486         # Set up bindings for the browser.
2487         foreach ww [list $w $fileselect(entry)] {
2488             bind $ww <Return> [list $fileselect(ok) invoke]
2489             bind $ww <Control-c> [list $fileselect(cancel) invoke]
2490         }
2491         bind $fileselect(direntry) <Return> [list fileselect.list.cmd %W]
2492         bind $fileselect(direntry) <Tab> [list fileselect.tab.dircmd]
2493         bind $fileselect(entry) <Tab> [list fileselect.tab.filecmd]
2494
2495         $fileselect(list) configure -selectmode single
2496
2497         bind $fileselect(list) <Button-1> {
2498             # puts stderr "button 1 release"
2499             $fileselect(entry) delete 0 end
2500             $fileselect(entry) insert 0 [%W get [%W nearest %y]]
2501         }
2502
2503         bind $fileselect(list) <Key> {
2504             $fileselect(entry) delete 0 end
2505             $fileselect(entry) insert 0 [%W get [%W nearest %y]]
2506         }
2507
2508         bind $fileselect(list) <Double-ButtonPress-1> {
2509             # puts stderr "double button 1"
2510             $fileselect(entry) delete 0 end
2511             $fileselect(entry) insert 0 [%W get [%W nearest %y]]
2512             $fileselect(ok) invoke
2513         }
2514
2515         bind $fileselect(list) <Return> {
2516             $fileselect(entry) delete 0 end
2517             $fileselect(entry) insert 0 [%W get [%W nearest %y]]
2518             $fileselect(ok) invoke
2519         }
2520     }
2521     set fileselect(text) $purpose
2522     $fileselect(msg) configure -text $purpose
2523     $fileselect(entry) delete 0 end
2524     $fileselect(entry) insert 0 [file tail $defaultName]
2525
2526     if {[info exists fileselect(lastDir)] && ![string length $defaultName]} {
2527         set dir $fileselect(lastDir)
2528     } else {
2529         set dir [file dirname $defaultName]
2530     }
2531     set fileselect(pwd) [pwd]
2532     fileselect.cd $dir
2533     $fileselect(direntry) delete 0 end
2534     $fileselect(direntry) insert 0 [pwd]/
2535
2536     $fileselect(list) delete 0 end
2537     $fileselect(list) insert 0 "Big directory:"
2538     $fileselect(list) insert 1 $dir
2539     $fileselect(list) insert 2 "Press Return for Listing"
2540
2541     fileselect.list.cmd $fileselect(direntry) startup
2542
2543     # set kbd focus to entry widget
2544
2545 #    Exwin_ToplevelFocus $w $fileselect(entry)
2546
2547     # Wait for button hits if no callbacks are defined
2548
2549     if {"$cmd" == "" && "$errorHandler" == ""} {
2550         # wait for the box to be destroyed
2551         update idletask
2552         grab $w
2553         tkwait variable fileselect(result)
2554         grab release $w
2555
2556         set path $fileselect(result)
2557         set fileselect(lastDir) [pwd]
2558         fileselect.cd $fileselect(pwd)
2559         return [string trimright [string trim $path] /]
2560     }
2561     fileselect.cd $fileselect(pwd)
2562     return ""
2563 }
2564
2565 proc fileselect.cd { dir } {
2566     global fileselect
2567     if {[catch {cd $dir} err]} {
2568         fileselect.yck $dir
2569         cd
2570     }
2571 }
2572 # auxiliary button procedures
2573
2574 proc fileselect.yck { {tag {}} } {
2575     global fileselect
2576     $fileselect(msg) configure -text "Yck! $tag"
2577 }
2578
2579 proc fileselect.ok {} {
2580     global fileselect
2581     $fileselect(msg) configure -text $fileselect(text)
2582 }
2583
2584 proc fileselect.cancel.cmd {w} {
2585     global fileselect
2586     set fileselect(result) {}
2587     destroy $w
2588 }
2589
2590 proc fileselect.list.cmd {w {state normal}} {
2591     global fileselect
2592     set seldir [$fileselect(direntry) get]
2593     if {[catch {glob $seldir} dir]} {
2594         fileselect.yck "glob failed"
2595         return
2596     }
2597     if {[llength $dir] > 1} {
2598         set dir [file dirname $seldir]
2599         set pat [file tail $seldir]
2600     } else {
2601         set pat $fileselect(pattern)
2602     }
2603     fileselect.ok
2604     update idletasks
2605     if {[file isdirectory $dir]} {
2606         fileselect.getfiles $dir $pat $state
2607         focus $fileselect(entry)
2608     } else {
2609         fileselect.yck "not a dir"
2610     }
2611 }
2612
2613 proc fileselect.ok.cmd {w cmd errorHandler} {
2614     global fileselect
2615     set selname [$fileselect(entry) get]
2616     set seldir [$fileselect(direntry) get]
2617
2618     if {[string match /* $selname]} {
2619         set selected $selname
2620     } else {
2621         if {[string match ~* $selname]} {
2622             set selected $selname
2623         } else {
2624             set selected $seldir/$selname
2625         }
2626     }
2627
2628     # some nasty file names may cause "file isdirectory" to return an error
2629     if {[catch {file isdirectory $selected} isdir]} {
2630         fileselect.yck "isdirectory failed"
2631         return
2632     }
2633     if {[catch {glob $selected} globlist]} {
2634         if {![file isdirectory [file dirname $selected]]} {
2635             fileselect.yck "bad pathname"
2636             return
2637         }
2638         set globlist $selected
2639     }
2640     fileselect.ok
2641     update idletasks
2642
2643     if {[llength $globlist] > 1} {
2644         set dir [file dirname $selected]
2645         set pat [file tail $selected]
2646         fileselect.getfiles $dir $pat
2647         return
2648     } else {
2649         set selected $globlist
2650     }
2651     if {[file isdirectory $selected]} {
2652         fileselect.getfiles $selected $fileselect(pattern)
2653         $fileselect(entry) delete 0 end
2654         return
2655     }
2656
2657     if {$cmd != {}} {
2658         $cmd $selected
2659     } else {
2660         set fileselect(result) $selected
2661     }
2662     destroy $w
2663 }
2664
2665 proc fileselect.getfiles { dir {pat *} {state normal} } {
2666     global fileselect
2667     $fileselect(msg) configure -text Listing...
2668     update idletasks
2669
2670     set currentDir [pwd]
2671     fileselect.cd $dir
2672     if {[catch {set files [lsort [glob -nocomplain $pat]]} err]} {
2673         $fileselect(msg) configure -text $err
2674         $fileselect(list) delete 0 end
2675         update idletasks
2676         return
2677     }
2678     switch -- $state {
2679         normal {
2680             # Normal case - show current directory
2681             $fileselect(direntry) delete 0 end
2682             $fileselect(direntry) insert 0 [pwd]/
2683         }
2684         opt {
2685             # Directory already OK (tab related)
2686         }
2687         newdir {
2688             # Changing directory (tab related)
2689             fileselect.cd $currentDir
2690         }
2691         startup {
2692             # Avoid listing huge directories upon startup.
2693             $fileselect(direntry) delete 0 end
2694             $fileselect(direntry) insert 0 [pwd]/
2695             if {[llength $files] > 32} {
2696                 fileselect.ok
2697                 return
2698             }
2699         }
2700     }
2701
2702     # build a reordered list of the files: directories are displayed first
2703     # and marked with a trailing "/"
2704     if {[string compare $dir /]} {
2705         fileselect.putfiles $files [expr {($pat == "*") ? 1 : 0}]
2706     } else {
2707         fileselect.putfiles $files
2708     }
2709     fileselect.ok
2710 }
2711
2712 proc fileselect.putfiles {files {dotdot 0} } {
2713     global fileselect
2714
2715     $fileselect(list) delete 0 end
2716     if {$dotdot} {
2717         $fileselect(list) insert end "../"
2718     }
2719     foreach i $files {
2720         if {[file isdirectory $i]} {
2721             $fileselect(list) insert end $i/
2722         } else {
2723             $fileselect(list) insert end $i
2724         }
2725     }
2726 }
2727
2728 proc FileExistsDialog { name } {
2729     set w .fileExists
2730     global fileExists
2731     set fileExists(ok) 0
2732     {
2733         message $w.msg -aspect 1000
2734         pack $w.msg -side top -fill both -padx 20 -pady 20
2735         $w.but.quit config -text Cancel -command {FileExistsCancel}
2736         button $w.but.ok -text OK -command {FileExistsOK}
2737         pack $w.but.ok -side left
2738         bind $w.msg <Return> {FileExistsOK}
2739     }
2740     $w.msg config -text "Warning: file exists
2741 $name
2742 OK to overwrite it?"
2743
2744     set fileExists(focus) [focus]
2745     focus $w.msg
2746     grab $w
2747     tkwait variable fileExists(ok)
2748     grab release $w
2749     destroy $w
2750     return $fileExists(ok)
2751 }
2752
2753 proc FileExistsCancel {} {
2754     global fileExists
2755     set fileExists(ok) 0
2756 }
2757
2758 proc FileExistsOK {} {
2759     global fileExists
2760     set fileExists(ok) 1
2761 }
2762
2763 proc fileselect.getfiledir { dir {basedir [pwd]} } {
2764     global fileselect
2765
2766     set path [$fileselect(direntry) get]
2767     set returnList {}
2768
2769     if {$dir != 0} {
2770         if {[string index $path 0] == "~"} {
2771             set path $path/
2772         }
2773     } else {
2774         set path [$fileselect(entry) get]
2775     }
2776     if {[catch {set listFile [glob -nocomplain $path*]}]} {
2777         return  $returnList
2778     }
2779     foreach el $listFile {
2780         if {$dir != 0} {
2781             if {[file isdirectory $el]} {
2782                 lappend returnList [file tail $el]
2783             }
2784         } elseif {![file isdirectory $el]} {
2785             lappend returnList [file tail $el]
2786         }
2787     }
2788
2789     return $returnList
2790 }
2791
2792 proc fileselect.gethead { list } {
2793     set returnHead ""
2794
2795     for {set i 0} {[string length [lindex $list 0]] > $i}\
2796         {incr i; set returnHead $returnHead$thisChar} {
2797             set thisChar [string index [lindex $list 0] $i]
2798             foreach el $list {
2799                 if {[string length $el] < $i} {
2800                     return $returnHead
2801                 }
2802                 if {$thisChar != [string index $el $i]} {
2803                     return $returnHead
2804                 }
2805             }
2806         }
2807     return $returnHead
2808 }
2809
2810 # FIXME this function is a crock.  Can write tilde expanding function
2811 # in terms of glob and quote_glob; do so.
2812 proc fileselect.expand.tilde { } {
2813     global fileselect
2814
2815     set entry [$fileselect(direntry) get]
2816     set dir [string range $entry 1 [string length $entry]]
2817
2818     if {$dir == ""} {
2819         return
2820     }
2821
2822     set listmatch {}
2823
2824     ## look in /etc/passwd
2825     if {[file exists /etc/passwd]} {
2826         if {[catch {set users [exec cat /etc/passwd | sed s/:.*//]} err]} {
2827             puts "Error\#1 $err"
2828             return
2829         }
2830         set list [split $users "\n"]
2831     }
2832     if {[lsearch -exact $list "+"] != -1} {
2833         if {[catch {set users [exec ypcat passwd | sed s/:.*//]} err]} {
2834             puts "Error\#2 $err"
2835             return
2836         }
2837         set list [concat $list [split $users "\n"]]
2838     }
2839     $fileselect(list) delete 0 end
2840     foreach el $list {
2841         if {[string match $dir* $el]} {
2842             lappend listmatch $el
2843             $fileselect(list) insert end $el
2844         }
2845     }
2846     set addings [fileselect.gethead $listmatch]
2847     if {$addings == ""} {
2848         return
2849     }
2850     $fileselect(direntry) delete 0 end
2851     if {[llength $listmatch] == 1} {
2852         $fileselect(direntry) insert 0 [file dirname ~$addings/]
2853         fileselect.getfiles [$fileselect(direntry) get]
2854     } else {
2855         $fileselect(direntry) insert 0 ~$addings
2856     }
2857 }
2858
2859 proc fileselect.tab.dircmd { } {
2860     global fileselect
2861
2862     set dir [$fileselect(direntry) get]
2863     if {$dir == ""} {
2864         $fileselect(direntry) delete 0 end
2865             $fileselect(direntry) insert 0 [pwd]
2866         if {[string compare [pwd] "/"]} {
2867             $fileselect(direntry) insert end /
2868         }
2869         return
2870     }
2871     if {[catch {set tmp [file isdirectory [file dirname $dir]]}]} {
2872         if {[string index $dir 0] == "~"} {
2873             fileselect.expand.tilde
2874         }
2875         return
2876     }
2877     if {!$tmp} {
2878         return
2879     }
2880     set dirFile [fileselect.getfiledir 1 $dir]
2881     if {![llength $dirFile]} {
2882         return
2883     }
2884     if {[llength $dirFile] == 1} {
2885         $fileselect(direntry) delete 0 end
2886         $fileselect(direntry) insert 0 [file dirname $dir]
2887         if {[string compare [file dirname $dir] /]} {
2888             $fileselect(direntry) insert end /[lindex $dirFile 0]/
2889         } else {
2890             $fileselect(direntry) insert end [lindex $dirFile 0]/
2891         }
2892         fileselect.getfiles [$fileselect(direntry) get] \
2893             "[file tail [$fileselect(direntry) get]]$fileselect(pattern)" opt
2894         return
2895     }
2896     set headFile [fileselect.gethead $dirFile]
2897     $fileselect(direntry) delete 0 end
2898     $fileselect(direntry) insert 0 [file dirname $dir]
2899     if {[string compare [file dirname $dir] /]} {
2900         $fileselect(direntry) insert end /$headFile
2901     } else {
2902         $fileselect(direntry) insert end $headFile
2903     }
2904     if {$headFile == "" && [file isdirectory $dir]} {
2905         fileselect.getfiles $dir\
2906             "[file tail [$fileselect(direntry) get]]$fileselect(pattern)" opt
2907     } else {
2908         fileselect.getfiles [file dirname $dir]\
2909             "[file tail [$fileselect(direntry) get]]*" newdir
2910     }
2911 }
2912
2913 proc fileselect.tab.filecmd { } {
2914     global fileselect
2915
2916     set dir [$fileselect(direntry) get]
2917     if {$dir == ""} {
2918         set dir [pwd]
2919     }
2920     if {![file isdirectory $dir]} {
2921         error "dir $dir doesn't exist"
2922     }
2923     set listFile [fileselect.getfiledir 0 $dir]
2924     puts $listFile
2925     if {![llength $listFile]} {
2926         return
2927     }
2928     if {[llength $listFile] == 1} {
2929         $fileselect(entry) delete 0 end
2930         $fileselect(entry) insert 0 [lindex $listFile 0]
2931         return
2932     }
2933     set headFile [fileselect.gethead $listFile]
2934     $fileselect(entry) delete 0 end
2935     $fileselect(entry) insert 0 $headFile
2936     fileselect.getfiles $dir "[$fileselect(entry) get]$fileselect(pattern)" opt
2937 }
2938
2939 proc Exwin_Toplevel { path name {class Dialog} {dismiss yes}} {
2940     global exwin
2941     if {[catch {wm state $path} state]} {
2942         set t [Widget_Toplevel $path $name $class]
2943         if {![info exists exwin(toplevels)]} {
2944             set exwin(toplevels) [option get . exwinPaths {}]
2945         }
2946         set ix [lsearch $exwin(toplevels) $t]
2947         if {$ix < 0} {
2948             lappend exwin(toplevels) $t
2949         }
2950         if {$dismiss == "yes"} {
2951             set f [Widget_Frame $t but Menubar {top fill}]
2952             Widget_AddBut $f quit "Dismiss" [list Exwin_Dismiss $path]
2953         }
2954         return 1
2955     } else {
2956         if {$state != "normal"} {
2957             catch {
2958                 wm geometry $path $exwin(geometry,$path)
2959 #               Exmh_Debug Exwin_Toplevel $path $exwin(geometry,$path)
2960             }
2961             wm deiconify $path
2962         } else {
2963             catch {raise $path}
2964         }
2965         return 0
2966     }
2967 }
2968
2969 proc Exwin_Dismiss { path {geo ok} } {
2970     global exwin
2971     case $geo {
2972         "ok" {
2973             set exwin(geometry,$path) [wm geometry $path]
2974         }
2975         "nosize" {
2976             set exwin(geometry,$path) [string trimleft [wm geometry $path] 0123456789x]
2977         }
2978         default {
2979             catch {unset exwin(geometry,$path)}
2980         }
2981     }
2982     wm withdraw $path
2983 }
2984
2985 proc Widget_Toplevel { path name {class Dialog} {x {}} {y {}} } {
2986     set self [toplevel $path -class $class]
2987     set usergeo [option get $path position Position]
2988     if {$usergeo != {}} {
2989         if {[catch {wm geometry $self $usergeo} err]} {
2990 #           Exmh_Debug Widget_Toplevel $self $usergeo => $err
2991         }
2992     } else {
2993         if {($x != {}) && ($y != {})} {
2994 #           Exmh_Debug Event position $self +$x+$y
2995             wm geometry $self +$x+$y
2996         }
2997     }
2998     wm title $self $name
2999     wm group $self .
3000     return $self
3001 }
3002
3003 proc Widget_Frame {par child {class GDB} {where {top expand fill}} args } {
3004     if {$par == "."} {
3005         set self .$child
3006     } else {
3007         set self $par.$child
3008     }
3009     eval {frame $self -class $class} $args
3010     pack append $par $self $where
3011     return $self
3012 }
3013
3014 proc Widget_AddBut {par but txt cmd {where {right padx 1}} } {
3015     # Create a Packed button.  Return the button pathname
3016     set cmd2 [list button $par.$but -text $txt -command $cmd]
3017     if {[catch $cmd2 t]} {
3018         puts stderr "Widget_AddBut (warning) $t"
3019         eval $cmd2 {-font fixed}
3020     }
3021     pack append $par $par.$but $where
3022     return $par.$but
3023 }
3024
3025 proc Widget_CheckBut {par but txt var {where {right padx 1}} } {
3026     # Create a check button.  Return the button pathname
3027     set cmd [list checkbutton $par.$but -text $txt -variable $var]
3028     if {[catch $cmd t]} {
3029         puts stderr "Widget_CheckBut (warning) $t"
3030         eval $cmd {-font fixed}
3031     }
3032     pack append $par $par.$but $where
3033     return $par.$but
3034 }
3035
3036 proc Widget_Label { frame {name label} {where {left fill}} args} {
3037     set cmd [list label $frame.$name ]
3038     if {[catch [concat $cmd $args] t]} {
3039         puts stderr "Widget_Label (warning) $t"
3040         eval $cmd $args {-font fixed}
3041     }
3042     pack append $frame $frame.$name $where
3043     return $frame.$name
3044 }
3045
3046 proc Widget_Entry { frame {name entry} {where {left fill}} args} {
3047     set cmd [list entry $frame.$name ]
3048     if {[catch [concat $cmd $args] t]} {
3049         puts stderr "Widget_Entry (warning) $t"
3050         eval $cmd $args {-font fixed}
3051     }
3052     pack append $frame $frame.$name $where
3053     return $frame.$name
3054 }
3055
3056 # End of fileselect.tcl.
3057
3058 #
3059 # Create a copyright window and center it on the screen.  Arrange for
3060 # it to disappear when the user clicks it, or after a suitable period
3061 # of time.
3062 #
3063 proc create_copyright_window {} {
3064   toplevel .c
3065   message .c.m -text [gdb_cmd {show version}] -aspect 500 -relief raised
3066   pack .c.m
3067
3068   bind .c.m <1> {destroy .c}
3069   bind .c <Leave> {destroy .c}
3070   # "suitable period" currently means "15 seconds".
3071   after 15000 {
3072     if {[winfo exists .c]} then {
3073       destroy .c
3074     }
3075   }
3076
3077   wm transient .c .
3078   center_window .c
3079 }
3080
3081 # FIXME need to handle mono here.  In Tk4 that is more complicated.
3082 set highlight "-background red2 -borderwidth 2 -relief sunken"
3083
3084 # Setup the initial windows
3085 create_source_window
3086 create_command_window
3087
3088 # Make this last so user actually sees it.
3089 create_copyright_window
3090 # Refresh.
3091 update
3092
3093 if {[file exists ~/.gdbtkinit]} {
3094   source ~/.gdbtkinit
3095 }