src/.gdbinit

   1 # Copyright (C) 1992-1998, 2000-2013 Free Software Foundation, Inc.
   2 #
   3 # This file is part of GNU Emacs.
   4 #
   5 # GNU Emacs is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3, or (at your option)
   8 # any later version.
   9 #
  10 # GNU Emacs is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # Force loading of symbols, enough to give us VALBITS etc.
  19 set $dummy = main + 8
  20 # With some compilers, we need this to give us struct Lisp_Symbol etc.:
  21 set $dummy = Fmake_symbol + 8
  22
  23 # Find lwlib source files too.
  24 dir ../lwlib
  25 #dir /gd/gnu/lesstif-0.89.9/lib/Xm
  26
  27 # Don't enter GDB when user types C-g to quit.
  28 # This has one unfortunate effect: you can't type C-c
  29 # at the GDB to stop Emacs, when using X.
  30 # However, C-z works just as well in that case.
  31 handle 2 noprint pass
  32
  33 # Make it work like SIGINT normally does.
  34 handle SIGTSTP nopass
  35
  36 # Pass on user signals
  37 handle SIGUSR1 noprint pass
  38 handle SIGUSR2 noprint pass
  39
  40 # Don't pass SIGALRM to Emacs.  This makes problems when
  41 # debugging.
  42 handle SIGALRM ignore
  43
  44 # Use $bugfix so that the value isn't a constant.
  45 # Using a constant runs into GDB bugs sometimes.
  46 define xgetptr
  47   if (CHECK_LISP_OBJECT_TYPE)
  48     set $bugfix = $arg0.i
  49   else
  50     set $bugfix = $arg0
  51   end
  52   set $ptr = ($bugfix & VALMASK) | DATA_SEG_BITS
  53 end
  54
  55 define xgetint
  56   if (CHECK_LISP_OBJECT_TYPE)
  57     set $bugfix = $arg0.i
  58   else
  59     set $bugfix = $arg0
  60   end
  61   set $int = $bugfix << (USE_LSB_TAG ? 0 : INTTYPEBITS) >> INTTYPEBITS
  62 end
  63
  64 define xgettype
  65   if (CHECK_LISP_OBJECT_TYPE)
  66     set $bugfix = $arg0.i
  67   else
  68     set $bugfix = $arg0
  69   end
  70   set $type = (enum Lisp_Type) (USE_LSB_TAG ? $bugfix & (1 << GCTYPEBITS) - 1 : (EMACS_UINT) $bugfix >> VALBITS)
  71 end
  72
  73 # Set up something to print out s-expressions.
  74 # We save and restore print_output_debug_flag to prevent the w32 port
  75 # from calling OutputDebugString, which causes GDB to display each
  76 # character twice (yuk!).
  77 define pr
  78   pp $
  79 end
  80 document pr
  81 Print the emacs s-expression which is $.
  82 Works only when an inferior emacs is executing.
  83 end
  84
  85 # Print out s-expressions
  86 define pp
  87   set $tmp = $arg0
  88   set $output_debug = print_output_debug_flag
  89   set print_output_debug_flag = 0
  90   call safe_debug_print ($tmp)
  91   set print_output_debug_flag = $output_debug
  92 end
  93 document pp
  94 Print the argument as an emacs s-expression
  95 Works only when an inferior emacs is executing.
  96 end
  97
  98 # Print value of lisp variable
  99 define pv
 100   set $tmp = "$arg0"
 101   set $output_debug = print_output_debug_flag
 102   set print_output_debug_flag = 0
 103   call safe_debug_print (find_symbol_value (intern ($tmp)))
 104   set print_output_debug_flag = $output_debug
 105 end
 106 document pv
 107 Print the value of the lisp variable given as argument.
 108 Works only when an inferior emacs is executing.
 109 end
 110
 111 # Print out current buffer point and boundaries
 112 define ppt
 113   set $b = current_buffer
 114   set $t = $b->text
 115   printf "BUF PT: %d", $b->pt
 116   if ($b->pt != $b->pt_byte)
 117     printf "[%d]", $b->pt_byte
 118   end
 119   printf " of 1..%d", $t->z
 120   if ($t->z != $t->z_byte)
 121     printf "[%d]", $t->z_byte
 122   end
 123   if ($b->begv != 1 || $b->zv != $t->z)
 124     printf " NARROW=%d..%d", $b->begv, $b->zv
 125     if ($b->begv != $b->begv_byte || $b->zv != $b->zv_byte)
 126       printf " [%d..%d]", $b->begv_byte, $b->zv_byte
 127     end
 128   end
 129   printf " GAP: %d", $t->gpt
 130   if ($t->gpt != $t->gpt_byte)
 131     printf "[%d]", $t->gpt_byte
 132   end
 133   printf " SZ=%d\n", $t->gap_size
 134 end
 135 document ppt
 136 Print current buffer's point and boundaries.
 137 Prints values of point, beg, end, narrow, and gap for current buffer.
 138 end
 139
 140 define pitmethod
 141   set $itmethod = $arg0
 142   # output $itmethod
 143   if ($itmethod == 0)
 144     printf "GET_FROM_BUFFER"
 145   end
 146   if ($itmethod == 1)
 147     printf "GET_FROM_DISPLAY_VECTOR"
 148   end
 149   if ($itmethod == 2)
 150     printf "GET_FROM_STRING"
 151   end
 152   if ($itmethod == 3)
 153     printf "GET_FROM_C_STRING"
 154   end
 155   if ($itmethod == 4)
 156     printf "GET_FROM_IMAGE"
 157   end
 158   if ($itmethod == 5)
 159     printf "GET_FROM_STRETCH"
 160   end
 161   if ($itmethod < 0 || $itmethod > 5)
 162     output $itmethod
 163   end
 164 end
 165 document pitmethod
 166 Pretty print it->method given as first arg
 167 end
 168
 169 # Print out iterator given as first arg
 170 define pitx
 171   set $it = $arg0
 172   printf "cur=%d", $it->current.pos.charpos
 173   if ($it->current.pos.charpos != $it->current.pos.bytepos)
 174     printf "[%d]", $it->current.pos.bytepos
 175   end
 176   printf " pos=%d", $it->position.charpos
 177   if ($it->position.charpos != $it->position.bytepos)
 178     printf "[%d]", $it->position.bytepos
 179   end
 180   printf " start=%d", $it->start.pos.charpos
 181   if ($it->start.pos.charpos != $it->start.pos.bytepos)
 182     printf "[%d]", $it->start.pos.bytepos
 183   end
 184   printf " end=%d", $it->end_charpos
 185   printf " stop=%d", $it->stop_charpos
 186   printf " face=%d", $it->face_id
 187   if ($it->multibyte_p)
 188     printf " MB"
 189   end
 190   if ($it->header_line_p)
 191     printf " HL"
 192   end
 193   if ($it->n_overlay_strings > 0)
 194     printf " nov=%d", $it->n_overlay_strings
 195   end
 196   if ($it->sp != 0)
 197     printf " sp=%d", $it->sp
 198   end
 199   # IT_CHARACTER
 200   if ($it->what == 0)
 201     if ($it->len == 1 && $it->c >= ' ' && it->c < 255)
 202       printf " ch='%c'", $it->c
 203     else
 204       printf " ch=[%d,%d]", $it->c, $it->len
 205     end
 206   else
 207     printf " "
 208     # output $it->what
 209     if ($it->what == 0)
 210       printf "IT_CHARACTER"
 211     end
 212     if ($it->what == 1)
 213       printf "IT_COMPOSITION"
 214     end
 215     if ($it->what == 2)
 216       printf "IT_IMAGE"
 217     end
 218     if ($it->what == 3)
 219       printf "IT_STRETCH"
 220     end
 221     if ($it->what == 4)
 222       printf "IT_EOB"
 223     end
 224     if ($it->what == 5)
 225       printf "IT_TRUNCATION"
 226     end
 227     if ($it->what == 6)
 228       printf "IT_CONTINUATION"
 229     end
 230     if ($it->what < 0 || $it->what > 6)
 231       output $it->what
 232     end
 233   end
 234   if ($it->method != 0)
 235     # !GET_FROM_BUFFER
 236     printf " next="
 237     pitmethod $it->method
 238     if ($it->method == 2)
 239       # GET_FROM_STRING
 240       printf "[%d]", $it->current.string_pos.charpos
 241     end
 242     if ($it->method == 4)
 243       # GET_FROM_IMAGE
 244       printf "[%d]", $it->image_id
 245     end
 246   end
 247   printf "\n"
 248   if ($it->bidi_p)
 249     printf "BIDI: base_stop=%d prev_stop=%d level=%d\n", $it->base_level_stop, $it->prev_stop, $it->bidi_it.resolved_level
 250   end
 251   if ($it->region_beg_charpos >= 0)
 252     printf "reg=%d-%d ", $it->region_beg_charpos, $it->region_end_charpos
 253   end
 254   printf "vpos=%d hpos=%d", $it->vpos, $it->hpos,
 255   printf " y=%d lvy=%d", $it->current_y, $it->last_visible_y
 256   printf " x=%d vx=%d-%d", $it->current_x, $it->first_visible_x, $it->last_visible_x
 257   printf " w=%d", $it->pixel_width
 258   printf " a+d=%d+%d=%d", $it->ascent, $it->descent, $it->ascent+$it->descent
 259   printf " max=%d+%d=%d", $it->max_ascent, $it->max_descent, $it->max_ascent+$it->max_descent
 260   printf "\n"
 261   set $i = 0
 262   while ($i < $it->sp && $i < 4)
 263     set $e = $it->stack[$i]
 264     printf "stack[%d]: ", $i
 265     pitmethod $e.method
 266     printf "[%d]", $e.position.charpos
 267     printf "\n"
 268     set $i = $i + 1
 269   end
 270 end
 271 document pitx
 272 Pretty print a display iterator.
 273 Take one arg, an iterator object or pointer.
 274 end
 275
 276 define pit
 277   pitx it
 278 end
 279 document pit
 280 Pretty print the display iterator it.
 281 end
 282
 283 define prowx
 284   set $row = $arg0
 285   printf "y=%d x=%d pwid=%d", $row->y, $row->x, $row->pixel_width
 286   printf " a+d=%d+%d=%d", $row->ascent, $row->height-$row->ascent, $row->height
 287   printf " phys=%d+%d=%d", $row->phys_ascent, $row->phys_height-$row->phys_ascent, $row->phys_height
 288   printf " vis=%d\n", $row->visible_height
 289   printf "used=(LMargin=%d,Text=%d,RMargin=%d) Hash=%d\n", $row->used[0], $row->used[1], $row->used[2], $row->hash
 290   printf "start=%d end=%d", $row->start.pos.charpos, $row->end.pos.charpos
 291   if ($row->enabled_p)
 292     printf " ENA"
 293   end
 294   if ($row->displays_text_p)
 295     printf " DISP"
 296   end
 297   if ($row->mode_line_p)
 298     printf " MODEL"
 299   end
 300   if ($row->continued_p)
 301     printf " CONT"
 302   end
 303   if ($row-> truncated_on_left_p)
 304     printf " TRUNC:L"
 305   end
 306   if ($row-> truncated_on_right_p)
 307     printf " TRUNC:R"
 308   end
 309   if ($row->starts_in_middle_of_char_p)
 310     printf " STARTMID"
 311   end
 312   if ($row->ends_in_middle_of_char_p)
 313     printf " ENDMID"
 314   end
 315   if ($row->ends_in_newline_from_string_p)
 316     printf " ENDNLFS"
 317   end
 318   if ($row->ends_at_zv_p)
 319     printf " ENDZV"
 320   end
 321   if ($row->overlapped_p)
 322     printf " OLAPD"
 323   end
 324   if ($row->overlapping_p)
 325     printf " OLAPNG"
 326   end
 327   printf "\n"
 328 end
 329 document prowx
 330 Pretty print information about glyph_row.
 331 Takes one argument, a row object or pointer.
 332 end
 333
 334 define prow
 335   prowx row
 336 end
 337 document prow
 338 Pretty print information about glyph_row in row.
 339 end
 340
 341
 342 define pcursorx
 343   set $cp = $arg0
 344   printf "y=%d x=%d vpos=%d hpos=%d", $cp->y, $cp->x, $cp->vpos, $cp->hpos
 345 end
 346 document pcursorx
 347 Pretty print a window cursor.
 348 end
 349
 350 define pcursor
 351   printf "output: "
 352   pcursorx output_cursor
 353   printf "\n"
 354 end
 355 document pcursor
 356 Pretty print the output_cursor.
 357 end
 358
 359 define pwinx
 360   set $w = $arg0
 361   if ($w->mini_p != Qnil)
 362     printf "Mini "
 363   end
 364   printf "Window %d ", $int
 365   xgetptr $w->buffer
 366   set $tem = (struct buffer *) $ptr
 367   xgetptr $tem->name_
 368   printf "%s", ((struct Lisp_String *) $ptr)->data
 369   printf "\n"
 370   xgetptr $w->start
 371   set $tem = (struct Lisp_Marker *) $ptr
 372   printf "start=%d end:", $tem->charpos
 373   if ($w->window_end_valid != Qnil)
 374     xgetint $w->window_end_pos
 375     printf "pos=%d", $int
 376     xgetint $w->window_end_vpos
 377     printf " vpos=%d", $int
 378   else
 379     printf "invalid"
 380   end
 381   printf " vscroll=%d", $w->vscroll
 382   if ($w->force_start != Qnil)
 383     printf " FORCE_START"
 384   end
 385   if ($w->must_be_updated_p)
 386     printf " MUST_UPD"
 387   end
 388   printf "\n"
 389   printf "cursor: "
 390   pcursorx $w->cursor
 391   printf "  phys: "
 392   pcursorx $w->phys_cursor
 393   if ($w->phys_cursor_on_p)
 394     printf " ON"
 395   else
 396     printf " OFF"
 397   end
 398   printf " blk="
 399   if ($w->last_cursor_off_p != $w->cursor_off_p)
 400     if ($w->last_cursor_off_p)
 401       printf "ON->"
 402     else
 403       printf "OFF->"
 404     end
 405   end
 406   if ($w->cursor_off_p)
 407     printf "ON"
 408   else
 409     printf "OFF"
 410   end
 411   printf "\n"
 412 end
 413 document pwinx
 414 Pretty print a window structure.
 415 Takes one argument, a pointer to a window structure.
 416 end
 417
 418 define pwin
 419   pwinx w
 420 end
 421 document pwin
 422 Pretty print window structure w.
 423 end
 424
 425 define pbiditype
 426   if ($arg0 == 0)
 427     printf "UNDEF"
 428   end
 429   if ($arg0 == 1)
 430     printf "L"
 431   end
 432   if ($arg0 == 2)
 433     printf "R"
 434   end
 435   if ($arg0 == 3)
 436     printf "EN"
 437   end
 438   if ($arg0 == 4)
 439     printf "AN"
 440   end
 441   if ($arg0 == 5)
 442     printf "BN"
 443   end
 444   if ($arg0 == 6)
 445     printf "B"
 446   end
 447   if ($arg0 < 0 || $arg0 > 6)
 448     printf "%d??", $arg0
 449   end
 450 end
 451 document pbiditype
 452 Print textual description of bidi type given as first argument.
 453 end
 454
 455 define pgx
 456   set $g = $arg0
 457   # CHAR_GLYPH
 458   if ($g.type == 0)
 459     if ($g.u.ch >= ' ' && $g.u.ch < 127)
 460       printf "CHAR[%c]", $g.u.ch
 461     else
 462       printf "CHAR[0x%x]", $g.u.ch
 463     end
 464   end
 465   # COMPOSITE_GLYPH
 466   if ($g.type == 1)
 467     printf "COMP[%d (%d..%d)]", $g.u.cmp.id, $g.slice.cmp.from, $g.slice.cmp.to
 468   end
 469   # GLYPHLESS_GLYPH
 470   if ($g.type == 2)
 471     printf "GLYPHLESS["
 472     if ($g.u.glyphless.method == 0)
 473       printf "THIN]"
 474     end
 475     if ($g.u.glyphless.method == 1)
 476       printf "EMPTY]"
 477     end
 478     if ($g.u.glyphless.method == 2)
 479       printf "ACRO]"
 480     end
 481     if ($g.u.glyphless.method == 3)
 482       printf "HEX]"
 483     end
 484   end
 485   # IMAGE_GLYPH
 486   if ($g.type == 3)
 487     printf "IMAGE[%d]", $g.u.img_id
 488   end
 489   # STRETCH_GLYPH
 490   if ($g.type == 4)
 491     printf "STRETCH[%d+%d]", $g.u.stretch.height, $g.u.stretch.ascent
 492   end
 493   xgettype ($g.object)
 494   if ($type == Lisp_String)
 495     xgetptr $g.object
 496     printf " str=0x%x[%d]", ((struct Lisp_String *)$ptr)->data, $g.charpos
 497   else
 498     printf " pos=%d", $g.charpos
 499   end
 500   # For characters, print their resolved level and bidi type
 501   if ($g.type == 0)
 502     printf " blev=%d,btyp=", $g.resolved_level
 503     pbiditype $g.bidi_type
 504   end
 505   printf " w=%d a+d=%d+%d", $g.pixel_width, $g.ascent, $g.descent
 506   # If not DEFAULT_FACE_ID
 507   if ($g.face_id != 0)
 508     printf " face=%d", $g.face_id
 509   end
 510   if ($g.voffset)
 511     printf " vof=%d", $g.voffset
 512   end
 513   if ($g.multibyte_p)
 514     printf " MB"
 515   end
 516   if ($g.padding_p)
 517     printf " PAD"
 518   end
 519   if ($g.glyph_not_available_p)
 520     printf " N/A"
 521   end
 522   if ($g.overlaps_vertically_p)
 523     printf " OVL"
 524   end
 525   if ($g.avoid_cursor_p)
 526     printf " AVOID"
 527   end
 528   if ($g.left_box_line_p)
 529     printf " ["
 530   end
 531   if ($g.right_box_line_p)
 532     printf " ]"
 533   end
 534   if ($g.slice.img.x || $g.slice.img.y || $g.slice.img.width || $g.slice.img.height)
 535     printf " slice=%d,%d,%d,%d" ,$g.slice.img.x, $g.slice.img.y, $g.slice.img.width, $g.slice.img.height
 536   end
 537   printf "\n"
 538 end
 539 document pgx
 540 Pretty print a glyph structure.
 541 Takes one argument, a pointer to a glyph structure.
 542 end
 543
 544 define pg
 545   set $pgidx = 0
 546   pgx glyph
 547 end
 548 document pg
 549 Pretty print glyph structure glyph.
 550 end
 551
 552 define pgi
 553   set $pgidx = $arg0
 554   pgx (&glyph[$pgidx])
 555 end
 556 document pgi
 557 Pretty print glyph structure glyph[I].
 558 Takes one argument, a integer I.
 559 end
 560
 561 define pgn
 562   set $pgidx = $pgidx + 1
 563   pgx (&glyph[$pgidx])
 564 end
 565 document pgn
 566 Pretty print next glyph structure.
 567 end
 568
 569 define pgrowx
 570   set $row = $arg0
 571   set $area = 0
 572   set $xofs = $row->x
 573   while ($area < 3)
 574     set $used = $row->used[$area]
 575     if ($used > 0)
 576       set $gl0 = $row->glyphs[$area]
 577       set $pgidx = 0
 578       printf "%s: %d glyphs\n", ($area == 0 ? "LEFT" : $area == 2 ? "RIGHT" : "TEXT"), $used
 579       while ($pgidx < $used)
 580         printf "%3d %4d: ", $pgidx, $xofs
 581         pgx $gl0[$pgidx]
 582         set $xofs = $xofs + $gl0[$pgidx]->pixel_width
 583         set $pgidx = $pgidx + 1
 584       end
 585     end
 586     set $area = $area + 1
 587   end
 588 end
 589 document pgrowx
 590 Pretty print all glyphs in a row structure.
 591 Takes one argument, a pointer to a row structure.
 592 end
 593
 594 define pgrow
 595   pgrowx row
 596 end
 597 document pgrow
 598 Pretty print all glyphs in row structure row.
 599 end
 600
 601 define pgrowit
 602   pgrowx it->glyph_row
 603 end
 604 document pgrowit
 605 Pretty print all glyphs in it->glyph_row.
 606 end
 607
 608 define prowlims
 609   printf "edges=(%d,%d),enb=%d,r2l=%d,cont=%d,trunc=(%d,%d),at_zv=%d\n", $arg0->minpos.charpos, $arg0->maxpos.charpos, $arg0->enabled_p, $arg0->reversed_p, $arg0->continued_p, $arg0->truncated_on_left_p, $arg0->truncated_on_right_p, $arg0->ends_at_zv_p
 610 end
 611 document prowlims
 612 Print important attributes of a glyph_row structure.
 613 Takes one argument, a pointer to a glyph_row structure.
 614 end
 615
 616 define pmtxrows
 617   set $mtx = $arg0
 618   set $gl = $mtx->rows
 619   set $glend = $mtx->rows + $mtx->nrows - 1
 620   set $i = 0
 621   while ($gl < $glend)
 622     printf "%d: ", $i
 623     prowlims $gl
 624     set $gl = $gl + 1
 625     set $i = $i + 1
 626   end
 627 end
 628 document pmtxrows
 629 Print data about glyph rows in a glyph matrix.
 630 Takes one argument, a pointer to a glyph_matrix structure.
 631 end
 632
 633 define xtype
 634   xgettype $
 635   output $type
 636   echo \n
 637   if $type == Lisp_Misc
 638     xmisctype
 639   else
 640     if $type == Lisp_Vectorlike
 641       xvectype
 642     end
 643   end
 644 end
 645 document xtype
 646 Print the type of $, assuming it is an Emacs Lisp value.
 647 If the first type printed is Lisp_Vector or Lisp_Misc,
 648 a second line gives the more precise type.
 649 end
 650
 651 define pvectype
 652   set $size = ((struct Lisp_Vector *) $arg0)->header.size
 653   if ($size & PSEUDOVECTOR_FLAG)
 654     output (enum pvec_type) (($size & PVEC_TYPE_MASK) >> PSEUDOVECTOR_AREA_BITS)
 655   else
 656     output PVEC_NORMAL_VECTOR
 657   end
 658   echo \n
 659 end
 660 document pvectype
 661 Print the subtype of vectorlike object.
 662 Takes one argument, a pointer to an object.
 663 end
 664
 665 define xvectype
 666   xgetptr $
 667   pvectype $ptr
 668 end
 669 document xvectype
 670 Print the subtype of vectorlike object.
 671 This command assumes that $ is a Lisp_Object.
 672 end
 673
 674 define pvecsize
 675   set $size = ((struct Lisp_Vector *) $arg0)->header.size
 676   if ($size & PSEUDOVECTOR_FLAG)
 677     output ($size & PSEUDOVECTOR_SIZE_MASK)
 678     echo \n
 679     output (($size & PSEUDOVECTOR_REST_MASK) >> PSEUDOVECTOR_SIZE_BITS)
 680   else
 681     output ($size & ~ARRAY_MARK_FLAG)
 682   end
 683   echo \n
 684 end
 685 document pvecsize
 686 Print the size of vectorlike object.
 687 Takes one argument, a pointer to an object.
 688 end
 689
 690 define xvecsize
 691   xgetptr $
 692   pvecsize $ptr
 693 end
 694 document xvecsize
 695 Print the size of $
 696 This command assumes that $ is a Lisp_Object.
 697 end
 698
 699 define xmisctype
 700   xgetptr $
 701   output (enum Lisp_Misc_Type) (((struct Lisp_Free *) $ptr)->type)
 702   echo \n
 703 end
 704 document xmisctype
 705 Assume that $ is some misc type and print its specific type.
 706 end
 707
 708 define xint
 709   xgetint $
 710   print $int
 711 end
 712 document xint
 713 Print $ as an Emacs Lisp integer.  This gets the sign right.
 714 end
 715
 716 define xptr
 717   xgetptr $
 718   print (void *) $ptr
 719 end
 720 document xptr
 721 Print the pointer portion of an Emacs Lisp value in $.
 722 end
 723
 724 define xmarker
 725   xgetptr $
 726   print (struct Lisp_Marker *) $ptr
 727 end
 728 document xmarker
 729 Print $ as a marker pointer.
 730 This command assumes that $ is an Emacs Lisp marker value.
 731 end
 732
 733 define xoverlay
 734   xgetptr $
 735   print (struct Lisp_Overlay *) $ptr
 736 end
 737 document xoverlay
 738 Print $ as a overlay pointer.
 739 This command assumes that $ is an Emacs Lisp overlay value.
 740 end
 741
 742 define xmiscfree
 743   xgetptr $
 744   print (struct Lisp_Free *) $ptr
 745 end
 746 document xmiscfree
 747 Print $ as a misc free-cell pointer.
 748 This command assumes that $ is an Emacs Lisp Misc value.
 749 end
 750
 751 define xsymbol
 752   set $sym = $
 753   xgetptr $sym
 754   print (struct Lisp_Symbol *) $ptr
 755   xprintsym $sym
 756   echo \n
 757 end
 758 document xsymbol
 759 Print the name and address of the symbol $.
 760 This command assumes that $ is an Emacs Lisp symbol value.
 761 end
 762
 763 define xstring
 764   xgetptr $
 765   print (struct Lisp_String *) $ptr
 766   xprintstr $
 767   echo \n
 768 end
 769 document xstring
 770 Print the contents and address of the string $.
 771 This command assumes that $ is an Emacs Lisp string value.
 772 end
 773
 774 define xvector
 775   xgetptr $
 776   print (struct Lisp_Vector *) $ptr
 777   output ($->header.size > 50) ? 0 : ($->contents[0])@($->header.size & ~ARRAY_MARK_FLAG)
 778 echo \n
 779 end
 780 document xvector
 781 Print the contents and address of the vector $.
 782 This command assumes that $ is an Emacs Lisp vector value.
 783 end
 784
 785 define xprocess
 786   xgetptr $
 787   print (struct Lisp_Process *) $ptr
 788   output *$
 789   echo \n
 790 end
 791 document xprocess
 792 Print the address of the struct Lisp_process to which $ points.
 793 This command assumes that $ is a Lisp_Object.
 794 end
 795
 796 define xframe
 797   xgetptr $
 798   print (struct frame *) $ptr
 799   xgetptr $->name
 800   set $ptr = (struct Lisp_String *) $ptr
 801   xprintstr $ptr
 802   echo \n
 803 end
 804 document xframe
 805 Print $ as a frame pointer.
 806 This command assumes $ is an Emacs Lisp frame value.
 807 end
 808
 809 define xcompiled
 810   xgetptr $
 811   print (struct Lisp_Vector *) $ptr
 812   output ($->contents[0])@($->header.size & 0xff)
 813 end
 814 document xcompiled
 815 Print $ as a compiled function pointer.
 816 This command assumes that $ is an Emacs Lisp compiled value.
 817 end
 818
 819 define xwindow
 820   xgetptr $
 821   print (struct window *) $ptr
 822   set $window = (struct window *) $ptr
 823   xgetint $window->total_cols
 824   set $width=$int
 825   xgetint $window->total_lines
 826   set $height=$int
 827   xgetint $window->left_col
 828   set $left=$int
 829   xgetint $window->top_line
 830   set $top=$int
 831   printf "%dx%d+%d+%d\n", $width, $height, $left, $top
 832 end
 833 document xwindow
 834 Print $ as a window pointer, assuming it is an Emacs Lisp window value.
 835 Print the window's position as "WIDTHxHEIGHT+LEFT+TOP".
 836 end
 837
 838 define xwinconfig
 839   xgetptr $
 840   print (struct save_window_data *) $ptr
 841 end
 842 document xwinconfig
 843 Print $ as a window configuration pointer.
 844 This command assumes that $ is an Emacs Lisp window configuration value.
 845 end
 846
 847 define xsubr
 848   xgetptr $
 849   print (struct Lisp_Subr *) $ptr
 850   output *$
 851   echo \n
 852 end
 853 document xsubr
 854 Print the address of the subr which the Lisp_Object $ points to.
 855 end
 856
 857 define xchartable
 858   xgetptr $
 859   print (struct Lisp_Char_Table *) $ptr
 860   printf "Purpose: "
 861   xprintsym $->purpose
 862   printf "  %d extra slots", ($->header.size & 0x1ff) - 68
 863   echo \n
 864 end
 865 document xchartable
 866 Print the address of the char-table $, and its purpose.
 867 This command assumes that $ is an Emacs Lisp char-table value.
 868 end
 869
 870 define xsubchartable
 871   xgetptr $
 872   print (struct Lisp_Sub_Char_Table *) $ptr
 873   xgetint $->depth
 874   set $depth = $int
 875   xgetint $->min_char
 876   printf "Depth: %d, Min char: %d (0x%x)\n", $depth, $int, $int
 877 end
 878 document xsubchartable
 879 Print the address of the sub-char-table $, its depth and min-char.
 880 This command assumes that $ is an Emacs Lisp sub-char-table value.
 881 end
 882
 883 define xboolvector
 884   xgetptr $
 885   print (struct Lisp_Bool_Vector *) $ptr
 886   output ($->size > 256) ? 0 : ($->data[0])@(($->size + BOOL_VECTOR_BITS_PER_CHAR - 1)/ BOOL_VECTOR_BITS_PER_CHAR)
 887   echo \n
 888 end
 889 document xboolvector
 890 Print the contents and address of the bool-vector $.
 891 This command assumes that $ is an Emacs Lisp bool-vector value.
 892 end
 893
 894 define xbuffer
 895   xgetptr $
 896   print (struct buffer *) $ptr
 897   xgetptr $->name_
 898   output ((struct Lisp_String *) $ptr)->data
 899   echo \n
 900 end
 901 document xbuffer
 902 Set $ as a buffer pointer and the name of the buffer.
 903 This command assumes $ is an Emacs Lisp buffer value.
 904 end
 905
 906 define xhashtable
 907   xgetptr $
 908   print (struct Lisp_Hash_Table *) $ptr
 909 end
 910 document xhashtable
 911 Set $ as a hash table pointer.
 912 This command assumes that $ is an Emacs Lisp hash table value.
 913 end
 914
 915 define xcons
 916   xgetptr $
 917   print (struct Lisp_Cons *) $ptr
 918   output/x *$
 919   echo \n
 920 end
 921 document xcons
 922 Print the contents of $ as an Emacs Lisp cons.
 923 end
 924
 925 define nextcons
 926   p $.u.cdr
 927   xcons
 928 end
 929 document nextcons
 930 Print the contents of the next cell in a list.
 931 This command assumes that the last thing you printed was a cons cell contents
 932 (type struct Lisp_Cons) or a pointer to one.
 933 end
 934 define xcar
 935   xgetptr $
 936   xgettype $
 937   print/x ($type == Lisp_Cons ? ((struct Lisp_Cons *) $ptr)->car : 0)
 938 end
 939 document xcar
 940 Assume that $ is an Emacs Lisp pair and print its car.
 941 end
 942
 943 define xcdr
 944   xgetptr $
 945   xgettype $
 946   print/x ($type == Lisp_Cons ? ((struct Lisp_Cons *) $ptr)->u.cdr : 0)
 947 end
 948 document xcdr
 949 Assume that $ is an Emacs Lisp pair and print its cdr.
 950 end
 951
 952 define xlist
 953   xgetptr $
 954   set $cons = (struct Lisp_Cons *) $ptr
 955   xgetptr Qnil
 956   set $nil = $ptr
 957   set $i = 0
 958   while $cons != $nil && $i < 10
 959     p/x $cons->car
 960     xpr
 961     xgetptr $cons->u.cdr
 962     set $cons = (struct Lisp_Cons *) $ptr
 963     set $i = $i + 1
 964     printf "---\n"
 965   end
 966   if $cons == $nil
 967     printf "nil\n"
 968   else
 969     printf "...\n"
 970     p $ptr
 971   end
 972 end
 973 document xlist
 974 Print $ assuming it is a list.
 975 end
 976
 977 define xfloat
 978   xgetptr $
 979   print ((struct Lisp_Float *) $ptr)->u.data
 980 end
 981 document xfloat
 982 Print $ assuming it is a lisp floating-point number.
 983 end
 984
 985 define xscrollbar
 986   xgetptr $
 987   print (struct scrollbar *) $ptr
 988 output *$
 989 echo \n
 990 end
 991 document xscrollbar
 992 Print $ as a scrollbar pointer.
 993 end
 994
 995 define xpr
 996   xtype
 997   if $type == Lisp_Int0 || $type == Lisp_Int1
 998     xint
 999   end
1000   if $type == Lisp_Symbol
1001     xsymbol
1002   end
1003   if $type == Lisp_String
1004     xstring
1005   end
1006   if $type == Lisp_Cons
1007     xcons
1008   end
1009   if $type == Lisp_Float
1010     xfloat
1011   end
1012   if $type == Lisp_Misc
1013     set $misc = (enum Lisp_Misc_Type) (((struct Lisp_Free *) $ptr)->type)
1014     if $misc == Lisp_Misc_Free
1015       xmiscfree
1016     end
1017     if $misc == Lisp_Misc_Marker
1018       xmarker
1019     end
1020     if $misc == Lisp_Misc_Overlay
1021       xoverlay
1022     end
1023 #    if $misc == Lisp_Misc_Save_Value
1024 #      xsavevalue
1025 #    end
1026   end
1027   if $type == Lisp_Vectorlike
1028     set $size = ((struct Lisp_Vector *) $ptr)->header.size
1029     if ($size & PSEUDOVECTOR_FLAG)
1030       set $vec = (enum pvec_type) (($size & PVEC_TYPE_MASK) >> PSEUDOVECTOR_AREA_BITS)
1031       if $vec == PVEC_NORMAL_VECTOR
1032         xvector
1033       end
1034       if $vec == PVEC_PROCESS
1035         xprocess
1036       end
1037       if $vec == PVEC_FRAME
1038         xframe
1039       end
1040       if $vec == PVEC_COMPILED
1041         xcompiled
1042       end
1043       if $vec == PVEC_WINDOW
1044         xwindow
1045       end
1046       if $vec == PVEC_WINDOW_CONFIGURATION
1047         xwinconfig
1048       end
1049       if $vec == PVEC_SUBR
1050         xsubr
1051       end
1052       if $vec == PVEC_CHAR_TABLE
1053         xchartable
1054       end
1055       if $vec == PVEC_BOOL_VECTOR
1056         xboolvector
1057       end
1058       if $vec == PVEC_BUFFER
1059         xbuffer
1060       end
1061       if $vec == PVEC_HASH_TABLE
1062         xhashtable
1063       end
1064     else
1065       xvector
1066     end
1067   end
1068 end
1069 document xpr
1070 Print $ as a lisp object of any type.
1071 end
1072
1073 define xprintstr
1074   set $data = (char *) $arg0->data
1075   output ($arg0->size > 1000) ? 0 : ($data[0])@($arg0->size_byte < 0 ? $arg0->size & ~ARRAY_MARK_FLAG : $arg0->size_byte)
1076 end
1077
1078 define xprintsym
1079   xgetptr $arg0
1080   set $sym = (struct Lisp_Symbol *) $ptr
1081   xgetptr $sym->name
1082   set $sym_name = (struct Lisp_String *) $ptr
1083   xprintstr $sym_name
1084 end
1085 document xprintsym
1086   Print argument as a symbol.
1087 end
1088
1089 define xcoding
1090   set $tmp = (struct Lisp_Hash_Table *) ((Vcoding_system_hash_table & VALMASK) | DATA_SEG_BITS)
1091   set $tmp = (struct Lisp_Vector *) (($tmp->key_and_value & VALMASK) | DATA_SEG_BITS)
1092   set $name = $tmp->contents[$arg0 * 2]
1093   print $name
1094   pr
1095   print $tmp->contents[$arg0 * 2 + 1]
1096   pr
1097 end
1098 document xcoding
1099   Print the name and attributes of coding system that has ID (argument).
1100 end
1101
1102 define xcharset
1103   set $tmp = (struct Lisp_Hash_Table *) ((Vcharset_hash_table & VALMASK) | DATA_SEG_BITS)
1104   set $tmp = (struct Lisp_Vector *) (($tmp->key_and_value & VALMASK) | DATA_SEG_BITS)
1105   p $tmp->contents[charset_table[$arg0].hash_index * 2]
1106   pr
1107 end
1108 document xcharset
1109   Print the name of charset that has ID (argument).
1110 end
1111
1112 define xfontset
1113   xgetptr $
1114   set $tbl = (struct Lisp_Char_Table *) $ptr
1115   print $tbl
1116   xgetint $tbl->extras[0]
1117   printf " ID:%d", $int
1118   xgettype $tbl->extras[1]
1119   xgetptr $tbl->extras[1]
1120   if $type == Lisp_String
1121     set $ptr = (struct Lisp_String *) $ptr
1122     printf " Name:"
1123     xprintstr $ptr
1124   else
1125     xgetptr $tbl->extras[2]
1126     set $ptr = (struct Lisp_Char_Table *) $ptr
1127     xgetptr $ptr->extras[1]
1128     set $ptr = (struct Lisp_String *) $ptr
1129     printf " Realized from:"
1130     xprintstr $ptr
1131   end
1132   echo \n
1133 end
1134
1135 define xfont
1136   xgetptr $
1137   set $size = (((struct Lisp_Vector *) $ptr)->header.size & 0x1FF)
1138   if $size == FONT_SPEC_MAX
1139     print (struct font_spec *) $ptr
1140   else
1141     if $size == FONT_ENTITY_MAX
1142       print (struct font_entity *) $ptr
1143     else
1144       print (struct font *) $ptr
1145     end
1146   end
1147 end
1148 document xfont
1149 Print $ assuming it is a list font (font-spec, font-entity, or font-object).
1150 end
1151
1152 define xbacktrace
1153   set $bt = backtrace_top ()
1154   while backtrace_p ($bt)
1155     set $fun = backtrace_function ($bt)
1156     xgettype $fun
1157     if $type == Lisp_Symbol
1158       xprintsym $fun
1159       printf " (0x%x)\n", backtrace_args ($bt)
1160     else
1161       xgetptr $fun
1162       printf "0x%x ", $ptr
1163       if $type == Lisp_Vectorlike
1164         xgetptr $fun
1165         set $size = ((struct Lisp_Vector *) $ptr)->header.size
1166         if ($size & PSEUDOVECTOR_FLAG)
1167           output (enum pvec_type) (($size & PVEC_TYPE_MASK) >> PSEUDOVECTOR_AREA_BITS)
1168         else
1169           output $size & ~ARRAY_MARK_FLAG
1170         end
1171       else
1172         printf "Lisp type %d", $type
1173       end
1174       echo \n
1175     end
1176     set $bt = backtrace_next ($bt)
1177   end
1178 end
1179 document xbacktrace
1180   Print a backtrace of Lisp function calls from backtrace_list.
1181   Set a breakpoint at Fsignal and call this to see from where
1182   an error was signaled.
1183 end
1184
1185 define xprintbytestr
1186   set $data = (char *) $arg0->data
1187   printf "Bytecode: "
1188   output/u ($arg0->size > 1000) ? 0 : ($data[0])@($arg0->size_byte < 0 ? $arg0->size & ~ARRAY_MARK_FLAG : $arg0->size_byte)
1189 end
1190 document xprintbytestr
1191   Print a string of byte code.
1192 end
1193
1194 define xwhichsymbols
1195   set $output_debug = print_output_debug_flag
1196   set print_output_debug_flag = 0
1197   call safe_debug_print (which_symbols ($arg0, $arg1))
1198   set print_output_debug_flag = $output_debug
1199 end
1200 document xwhichsymbols
1201   Print symbols which references a given lisp object
1202   either as its symbol value or symbol function.
1203   Call with two arguments: the lisp object and the
1204   maximum number of symbols referencing it to produce.
1205 end
1206
1207 define xbytecode
1208   set $bt = byte_stack_list
1209   while $bt
1210     xgetptr $bt->byte_string
1211     set $ptr = (struct Lisp_String *) $ptr
1212     xprintbytestr $ptr
1213     printf "\n0x%x => ", $bt->byte_string
1214     xwhichsymbols $bt->byte_string 5
1215     set $bt = $bt->next
1216   end
1217 end
1218 document xbytecode
1219   Print a backtrace of the byte code stack.
1220 end
1221
1222 # Show Lisp backtrace after normal backtrace.
1223 define hookpost-backtrace
1224   set $bt = backtrace_top ()
1225   if backtrace_p ($bt)
1226     echo \n
1227     echo Lisp Backtrace:\n
1228     xbacktrace
1229   end
1230 end
1231
1232 # Flush display (X only)
1233 define ff
1234   set x_flush (0)
1235 end
1236 document ff
1237 Flush pending X window display updates to screen.
1238 Works only when an inferior emacs is executing.
1239 end
1240
1241
1242 set print pretty on
1243 set print sevenbit-strings
1244
1245 show environment DISPLAY
1246 show environment TERM
1247
1248 # When debugging, it is handy to be able to "return" from
1249 # terminate_due_to_signal when an assertion failure is non-fatal.
1250 break terminate_due_to_signal
1251
1252 # x_error_quitter is defined only on X.  But window-system is set up
1253 # only at run time, during Emacs startup, so we need to defer setting
1254 # the breakpoint.  init_sys_modes is the first function called on
1255 # every platform after init_display, where window-system is set.
1256 tbreak init_sys_modes
1257 commands
1258   silent
1259   xgetptr globals.f_Vinitial_window_system
1260   set $tem = (struct Lisp_Symbol *) $ptr
1261   xgetptr $tem->name
1262   set $tem = (struct Lisp_String *) $ptr
1263   set $tem = (char *) $tem->data
1264   # If we are running in synchronous mode, we want a chance to look
1265   # around before Emacs exits.  Perhaps we should put the break
1266   # somewhere else instead...
1267   if $tem[0] == 'x' && $tem[1] == '\0'
1268     break x_error_quitter
1269   end
1270   continue
1271 end