X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/ffd56f97cf56501f7a6981c184192e9043e4eafd..14b6e3bb481f4cb48f397c50ae8116b6fc39c937:/src/.gdbinit

diff --git a/src/.gdbinit b/src/.gdbinit
index 91a921119e..a99b17e16f 100644
--- a/src/.gdbinit
+++ b/src/.gdbinit
@@ -1,129 +1,1111 @@
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2001,
+#   2004, 2005, 2006 Free Software Foundation, Inc.
+#
+# This file is part of GNU Emacs.
+#
+# GNU Emacs is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# GNU Emacs is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Emacs; see the file COPYING.  If not, write to the
+# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+
+# Force loading of symbols, enough to give us gdb_valbits etc.
+set main
+
+# Find lwlib source files too.
+dir ../lwlib
+#dir /gd/gnu/lesstif-0.89.9/lib/Xm
+
+# Don't enter GDB when user types C-g to quit.
+# This has one unfortunate effect: you can't type C-c
+# at the GDB to stop Emacs, when using X.
+# However, C-z works just as well in that case.
+handle 2 noprint pass
+
+# Make it work like SIGINT normally does.
+handle SIGTSTP nopass
+
+# Don't pass SIGALRM to Emacs.  This makes problems when
+# debugging.
+handle SIGALRM ignore
+
+# $valmask and $tagmask are mask values set up by the xreload macro below.
+
+# Use $bugfix so that the value isn't a constant.
+# Using a constant runs into GDB bugs sometimes.
+define xgetptr
+  set $bugfix = $arg0
+  set $ptr = (gdb_use_union ? $bugfix.u.val : $bugfix & $valmask) | gdb_data_seg_bits
+end
+
+define xgetint
+  set $bugfix = $arg0
+  set $int = gdb_use_union ? $bugfix.s.val : (gdb_use_lsb ? $bugfix : $bugfix << gdb_gctypebits) >> gdb_gctypebits
+end
+
+define xgettype
+  set $bugfix = $arg0
+  set $type = gdb_use_union ? $bugfix.s.type : (enum Lisp_Type) (gdb_use_lsb ? $bugfix & $tagmask : $bugfix >> gdb_valbits)
+end
+
 # Set up something to print out s-expressions.
+# We save and restore print_output_debug_flag to prevent the w32 port
+# from calling OutputDebugString, which causes GDB to display each
+# character twice (yuk!).
 define pr
-set Fprin1 ($, Qexternal_debugging_output)
-echo \n
+  set $output_debug = print_output_debug_flag
+  set print_output_debug_flag = 0
+  set debug_print ($)
+  set print_output_debug_flag = $output_debug
 end
 document pr
 Print the emacs s-expression which is $.
 Works only when an inferior emacs is executing.
 end
 
+# Print out s-expressions
+define pp
+  set $tmp = $arg0
+  set $output_debug = print_output_debug_flag
+  set print_output_debug_flag = 0
+  set safe_debug_print ($tmp)
+  set print_output_debug_flag = $output_debug
+end
+document pp
+Print the argument as an emacs s-expression
+Works only when an inferior emacs is executing.
+end
+
+# Print out s-expressions from tool bar
+define pp1
+  set $tmp = $arg0
+  set $output_debug = print_output_debug_flag
+  set print_output_debug_flag = 0
+  set safe_debug_print ($tmp)
+  set print_output_debug_flag = $output_debug
+end
+document pp1
+Print the argument as an emacs s-expression.
+Works only when an inferior emacs is executing.
+For use on tool bar when debugging in Emacs
+where the variable name would not otherwise
+be recorded in the GUD buffer.
+end
+
+# Print value of lisp variable
+define pv
+  set $tmp = "$arg0"
+  set $output_debug = print_output_debug_flag
+  set print_output_debug_flag = 0
+  set safe_debug_print ( find_symbol_value (intern ($tmp)))
+  set print_output_debug_flag = $output_debug
+end
+document pv
+Print the value of the lisp variable given as argument.
+Works only when an inferior emacs is executing.
+end
+
+# Print value of lisp variable
+define pv1
+  set $tmp = "$arg0"
+  set $output_debug = print_output_debug_flag
+  set print_output_debug_flag = 0
+  set safe_debug_print (find_symbol_value (intern ($tmp)))
+  set print_output_debug_flag = $output_debug
+end
+document pv1
+Print the value of the lisp variable given as argument.
+Works only when an inferior emacs is executing.
+For use when debugging in Emacs where the variable
+name would not otherwise be recorded in the GUD buffer.
+end
+
+# Print out current buffer point and boundaries
+define ppt
+  set $b = current_buffer
+  set $t = $b->text
+  printf "BUF PT: %d", $b->pt
+  if ($b->pt != $b->pt_byte)
+    printf "[%d]", $b->pt_byte
+  end
+  printf " of 1..%d", $t->z
+  if ($t->z != $t->z_byte)
+    printf "[%d]", $t->z_byte
+  end
+  if ($b->begv != 1 || $b->zv != $t->z)
+    printf " NARROW=%d..%d", $b->begv, $b->zv
+    if ($b->begv != $b->begv_byte || $b->zv != $b->zv_byte)
+      printf " [%d..%d]", $b->begv_byte, $b->zv_byte
+    end
+  end
+  printf " GAP: %d", $t->gpt
+  if ($t->gpt != $t->gpt_byte)
+    printf "[%d]", $t->gpt_byte
+  end
+  printf " SZ=%d\n", $t->gap_size
+end
+document ppt
+Print point, beg, end, narrow, and gap for current buffer.
+end
+
+# Print out iterator given as first arg
+define pitx
+  set $it = $arg0
+  printf "cur=%d", $it->current.pos.charpos
+  if ($it->current.pos.charpos != $it->current.pos.bytepos)
+    printf "[%d]", $it->current.pos.bytepos
+  end
+  printf " pos=%d", $it->position.charpos
+  if ($it->position.charpos != $it->position.bytepos)
+    printf "[%d]", $it->position.bytepos
+  end
+  printf " start=%d", $it->start.pos.charpos
+  if ($it->start.pos.charpos != $it->start.pos.bytepos)
+    printf "[%d]", $it->start.pos.bytepos
+  end
+  printf " end=%d", $it->end_charpos
+  printf " stop=%d", $it->stop_charpos
+  printf " face=%d", $it->face_id
+  if ($it->multibyte_p)
+    printf " MB"
+  end
+  if ($it->header_line_p)
+    printf " HL"
+  end
+  if ($it->n_overlay_strings > 0)
+    printf " nov=%d", $it->n_overlay_strings
+  end
+  if ($it->sp != 0)
+    printf " sp=%d", $it->sp
+  end
+  if ($it->what == IT_CHARACTER)
+    if ($it->len == 1 && $it->c >= ' ' && it->c < 255)
+      printf " ch='%c'", $it->c
+    else
+      printf " ch=[%d,%d]", $it->c, $it->len
+    end
+  else
+    printf " "
+    output $it->what
+  end
+  if ($it->method != GET_FROM_BUFFER)
+    printf " next="
+    output $it->method
+    if ($it->method == GET_FROM_STRING)
+      printf "[%d]", $it->current.string_pos.charpos
+    end
+    if ($it->method == GET_FROM_IMAGE)
+      printf "[%d]", $it->image_id
+    end
+    if ($it->method == GET_FROM_COMPOSITION)
+      printf "[%d,%d,%d]", $it->cmp_id, $it->len, $it->cmp_len
+    end
+  end
+  printf "\n"
+  if ($it->region_beg_charpos >= 0)
+    printf "reg=%d-%d ", $it->region_beg_charpos, $it->region_end_charpos
+  end
+  printf "vpos=%d hpos=%d", $it->vpos, $it->hpos,
+  printf " y=%d lvy=%d", $it->current_y, $it->last_visible_y
+  printf " x=%d vx=%d-%d", $it->current_x, $it->first_visible_x, $it->last_visible_x
+  printf " w=%d", $it->pixel_width
+  printf " a+d=%d+%d=%d", $it->ascent, $it->descent, $it->ascent+$it->descent
+  printf " max=%d+%d=%d", $it->max_ascent, $it->max_descent, $it->max_ascent+$it->max_descent
+  printf "\n"
+  set $i = 0
+  while ($i < $it->sp && $i < 4)
+    set $e = $it->stack[$i]
+    printf "stack[%d]: ", $i
+    output $e->method
+    printf "[%d]", $e->position.charpos
+    printf "\n"
+    set $i = $i + 1
+  end
+end
+document pitx
+Pretty print a display iterator.
+Take one arg, an iterator object or pointer.
+end
+
+define pit
+  pitx it
+end
+document pit
+Pretty print the display iterator it.
+end
+
+define prowx
+  set $row = $arg0
+  printf "y=%d x=%d pwid=%d", $row->y, $row->x, $row->pixel_width
+  printf " a+d=%d+%d=%d", $row->ascent, $row->height-$row->ascent, $row->height
+  printf " phys=%d+%d=%d", $row->phys_ascent, $row->phys_height-$row->phys_ascent, $row->phys_height
+  printf " vis=%d", $row->visible_height
+  printf "  L=%d T=%d R=%d", $row->used[0], $row->used[1], $row->used[2]
+  printf "\n"
+  printf "start=%d end=%d", $row->start.pos.charpos, $row->end.pos.charpos
+  if ($row->enabled_p)
+    printf " ENA"
+  end
+  if ($row->displays_text_p)
+    printf " DISP"
+  end
+  if ($row->mode_line_p)
+    printf " MODEL"
+  end
+  if ($row->continued_p)
+    printf " CONT"
+  end
+  if ($row-> truncated_on_left_p)
+    printf " TRUNC:L"
+  end
+  if ($row-> truncated_on_right_p)
+    printf " TRUNC:R"
+  end
+  if ($row->starts_in_middle_of_char_p)
+    printf " STARTMID"
+  end
+  if ($row->ends_in_middle_of_char_p)
+    printf " ENDMID"
+  end
+  if ($row->ends_in_newline_from_string_p)
+    printf " ENDNLFS"
+  end
+  if ($row->ends_at_zv_p)
+    printf " ENDZV"
+  end
+  if ($row->overlapped_p)
+    printf " OLAPD"
+  end
+  if ($row->overlapping_p)
+    printf " OLAPNG"
+  end
+  printf "\n"
+end
+document prowx
+Pretty print information about glyph_row.
+Takes one argument, a row object or pointer.
+end
+
+define prow
+  prowx row
+end
+document prow
+Pretty print information about glyph_row in row.
+end
+
+
+define pcursorx
+  set $cp = $arg0
+  printf "y=%d x=%d vpos=%d hpos=%d", $cp->y, $cp->x, $cp->vpos, $cp->hpos
+end
+document pcursorx
+Pretty print a window cursor
+end
+
+define pcursor
+  printf "output: "
+  pcursorx output_cursor
+  printf "\n"
+end
+document pcursor
+Pretty print the output_cursor
+end
+
+define pwinx
+  set $w = $arg0
+  xgetint $w->sequence_number
+  if ($w->mini_p != Qnil)
+    printf "Mini "
+  end
+  printf "Window %d ", $int
+  xgetptr $w->buffer
+  set $tem = (struct buffer *) $ptr
+  xgetptr $tem->name
+  printf "%s", ((struct Lisp_String *) $ptr)->data
+  printf "\n"
+  xgetptr $w->start
+  set $tem = (struct Lisp_Marker *) $ptr
+  printf "start=%d end:", $tem->charpos
+  if ($w->window_end_valid != Qnil)
+    xgetint $w->window_end_pos
+    printf "pos=%d", $int
+    xgetint $w->window_end_vpos
+    printf " vpos=%d", $int
+  else
+    printf "invalid"
+  end
+  printf " vscroll=%d", $w->vscroll
+  if ($w->force_start != Qnil)
+    printf " FORCE_START"
+  end
+  if ($w->must_be_updated_p)
+    printf " MUST_UPD"
+  end
+  printf "\n"
+  printf "cursor: "
+  pcursorx $w->cursor
+  printf "  phys: "
+  pcursorx $w->phys_cursor
+  if ($w->phys_cursor_on_p)
+    printf " ON"
+  else
+    printf " OFF"
+  end
+  printf " blk="
+  if ($w->last_cursor_off_p != $w->cursor_off_p)
+    if ($w->last_cursor_off_p)
+      printf "ON->"
+    else
+      printf "OFF->"
+    end
+  end
+  if ($w->cursor_off_p)
+    printf "ON"
+  else
+    printf "OFF"
+  end
+  printf "\n"
+end
+document pwinx
+Pretty print a window structure.
+Takes one argument, a pointer to a window structure
+end
+
+define pwin
+  pwinx w
+end
+document pwin
+Pretty print window structure w.
+end
+
+define pgx
+  set $g = $arg0
+  if ($g->type == CHAR_GLYPH)
+    if ($g->u.ch >= ' ' && $g->u.ch < 127)
+      printf "CHAR[%c]", $g->u.ch
+    else
+      printf "CHAR[0x%x]", $g->u.ch
+    end
+  end
+  if ($g->type == COMPOSITE_GLYPH)
+    printf "COMP[%d]", $g->u.cmp_id
+  end
+  if ($g->type == IMAGE_GLYPH)
+    printf "IMAGE[%d]", $g->u.img_id
+  end
+  if ($g->type == STRETCH_GLYPH)
+    printf "STRETCH[%d+%d]", $g->u.stretch.height, $g->u.stretch.ascent
+  end
+  xgettype ($g->object)
+  if ($type == Lisp_String)
+    printf " str=%x[%d]", $g->object, $g->charpos
+  else
+    printf " pos=%d", $g->charpos
+  end
+  printf " w=%d a+d=%d+%d", $g->pixel_width, $g->ascent, $g->descent
+  if ($g->face_id != DEFAULT_FACE_ID)
+    printf " face=%d", $g->face_id
+  end
+  if ($g->voffset)
+    printf " vof=%d", $g->voffset
+  end
+  if ($g->multibyte_p)
+    printf " MB"
+  end
+  if ($g->padding_p)
+    printf " PAD"
+  end
+  if ($g->glyph_not_available_p)
+    printf " N/A"
+  end
+  if ($g->overlaps_vertically_p)
+    printf " OVL"
+  end
+  if ($g->left_box_line_p)
+    printf " ["
+  end
+  if ($g->right_box_line_p)
+    printf " ]"
+  end
+  if ($g->slice.x || $g->slice.y || $g->slice.width || $g->slice.height)
+    printf " slice=%d,%d,%d,%d" ,$g->slice.x, $g->slice.y, $g->slice.width, $g->slice.height
+  end
+  printf "\n"
+end
+document pgx
+Pretty print a glyph structure.
+Takes one argument, a pointer to a glyph structure
+end
+
+define pg
+  set $pgidx = 0
+  pgx glyph
+end
+document pg
+Pretty print glyph structure glyph.
+end
+
+define pgi
+  set $pgidx = $arg0
+  pgx (&glyph[$pgidx])
+end
+document pgi
+Pretty print glyph structure glyph[I].
+Takes one argument, a integer I.
+end
+
+define pgn
+  set $pgidx = $pgidx + 1
+  pgx (&glyph[$pgidx])
+end
+document pgn
+Pretty print next glyph structure.
+end
+
+define pgrowx
+  set $row = $arg0
+  set $area = 0
+  set $xofs = $row->x
+  while ($area < 3)
+    set $used = $row->used[$area]
+    if ($used > 0)
+      set $gl0 = $row->glyphs[$area]
+      set $pgidx = 0
+      printf "%s: %d glyphs\n", ($area == 0 ? "LEFT" : $area == 2 ? "RIGHT" : "TEXT"), $used
+      while ($pgidx < $used)
+	printf "%3d %4d: ", $pgidx, $xofs
+	pgx $gl0[$pgidx]
+	set $xofs = $xofs + $gl0[$pgidx]->pixel_width
+	set $pgidx = $pgidx + 1
+      end
+    end
+    set $area = $area + 1
+  end
+end
+document pgrowx
+Pretty print all glyphs in a row structure.
+Takes one argument, a pointer to a row structure.
+end
+
+define pgrow
+  pgrowx row
+end
+document pgrow
+Pretty print all glyphs in row structure row.
+end
+
 define xtype
-print (enum Lisp_Type) (($ >> 24) & 0x7f)
-p $$
+  xgettype $
+  output $type
+  echo \n
+  if $type == Lisp_Misc
+    xmisctype
+  else
+    if $type == Lisp_Vectorlike
+      xvectype
+    end
+  end
 end
 document xtype
-Print the type of $, assuming it is an Elisp value.
+Print the type of $, assuming it is an Emacs Lisp value.
+If the first type printed is Lisp_Vector or Lisp_Misc,
+a second line gives the more precise type.
+end
+
+define xvectype
+  xgetptr $
+  set $size = ((struct Lisp_Vector *) $ptr)->size
+  output ($size & PVEC_FLAG) ? (enum pvec_type) ($size & PVEC_TYPE_MASK) : $size & ~gdb_array_mark_flag
+  echo \n
+end
+document xvectype
+Print the size or vector subtype of $, assuming it is a vector or pseudovector.
+end
+
+define xmisctype
+  xgetptr $
+  output (enum Lisp_Misc_Type) (((struct Lisp_Free *) $ptr)->type)
+  echo \n
+end
+document xmisctype
+Print the specific type of $, assuming it is some misc type.
 end
 
 define xint
-print (($ & 0x00ffffff) << 8) >> 8
+  xgetint $
+  print $int
 end
 document xint
-Print $, assuming it is an Elisp integer.  This gets the sign right.
+Print $, assuming it is an Emacs Lisp integer.  This gets the sign right.
 end
 
 define xptr
-print (void *) ($ & 0x00ffffff)
+  xgetptr $
+  print (void *) $ptr
 end
 document xptr
-Print the pointer portion of $, assuming it is an Elisp value.
+Print the pointer portion of $, assuming it is an Emacs Lisp value.
 end
 
-define xwindow
-print (struct window *) ($ & 0x00ffffff)
+define xmarker
+  xgetptr $
+  print (struct Lisp_Marker *) $ptr
 end
-document xwindow
-Print $ as a window pointer, assuming it is an Elisp window value.
+document xmarker
+Print $ as a marker pointer, assuming it is an Emacs Lisp marker value.
 end
 
-define xmarker
-print (struct Lisp_Marker *) ($ & 0x00ffffff)
+define xoverlay
+  xgetptr $
+  print (struct Lisp_Overlay *) $ptr
 end
-document xmarker
-Print $ as a marker pointer, assuming it is an Elisp marker value.
+document xoverlay
+Print $ as a overlay pointer, assuming it is an Emacs Lisp overlay value.
 end
 
-define xbuffer
-print (struct buffer *) ($ & 0x00ffffff)
+define xmiscfree
+  xgetptr $
+  print (struct Lisp_Free *) $ptr
 end
-document xbuffer
-Print $ as a buffer pointer, assuming it is an Elisp buffer value.
+document xmiscfree
+Print $ as a misc free-cell pointer, assuming it is an Emacs Lisp Misc value.
+end
+
+define xintfwd
+  xgetptr $
+  print (struct Lisp_Intfwd *) $ptr
+end
+document xintfwd
+Print $ as an integer forwarding pointer, assuming it is an Emacs Lisp Misc value.
+end
+
+define xboolfwd
+  xgetptr $
+  print (struct Lisp_Boolfwd *) $ptr
+end
+document xboolfwd
+Print $ as a boolean forwarding pointer, assuming it is an Emacs Lisp Misc value.
+end
+
+define xobjfwd
+  xgetptr $
+  print (struct Lisp_Objfwd *) $ptr
+end
+document xobjfwd
+Print $ as an object forwarding pointer, assuming it is an Emacs Lisp Misc value.
+end
+
+define xbufobjfwd
+  xgetptr $
+  print (struct Lisp_Buffer_Objfwd *) $ptr
+end
+document xbufobjfwd
+Print $ as a buffer-local object forwarding pointer, assuming it is an Emacs Lisp Misc value.
+end
+
+define xkbobjfwd
+  xgetptr $
+  print (struct Lisp_Kboard_Objfwd *) $ptr
+end
+document xkbobjfwd
+Print $ as a kboard-local object forwarding pointer, assuming it is an Emacs Lisp Misc value.
+end
+
+define xbuflocal
+  xgetptr $
+  print (struct Lisp_Buffer_Local_Value *) $ptr
+end
+document xbuflocal
+Print $ as a buffer-local-value pointer, assuming it is an Emacs Lisp Misc value.
 end
 
 define xsymbol
-print (struct Lisp_Symbol *) ($ & 0x00ffffff)
-print &$->name->data
-print $$
+  set $sym = $
+  xgetptr $sym
+  print (struct Lisp_Symbol *) $ptr
+  xprintsym $sym
+  echo \n
 end
 document xsymbol
 Print the name and address of the symbol $.
-This command assumes that $ is an Elisp symbol value.
+This command assumes that $ is an Emacs Lisp symbol value.
 end
 
 define xstring
-print (struct Lisp_String *) ($ & 0x00ffffff)
-print ($->size > 10000) ? "big string" : ($->data[0])@($->size)
-print $$
+  xgetptr $
+  print (struct Lisp_String *) $ptr
+  xprintstr $
+  echo \n
 end
 document xstring
 Print the contents and address of the string $.
-This command assumes that $ is an Elisp string value.
+This command assumes that $ is an Emacs Lisp string value.
 end
 
 define xvector
-set $temp = (struct Lisp_Vector *) ($ & 0x00ffffff)
-print ($temp->size > 10000) ? "big vector" : ($temp->contents[0])@($temp->size)
-print $temp
+  xgetptr $
+  print (struct Lisp_Vector *) $ptr
+  output ($->size > 50) ? 0 : ($->contents[0])@($->size & ~gdb_array_mark_flag)
+echo \n
 end
 document xvector
 Print the contents and address of the vector $.
-This command assumes that $ is an Elisp vector value.
+This command assumes that $ is an Emacs Lisp vector value.
+end
+
+define xprocess
+  xgetptr $
+  print (struct Lisp_Process *) $ptr
+  output *$
+  echo \n
+end
+document xprocess
+Print the address of the struct Lisp_process which the Lisp_Object $ points to.
 end
 
-define xscreen
-print (struct screen *) ($ & 0x00ffffff)
+define xframe
+  xgetptr $
+  print (struct frame *) $ptr
+  xgetptr $->name
+  set $ptr = (struct Lisp_String *) $ptr
+  xprintstr $ptr
+  echo \n
+end
+document xframe
+Print $ as a frame pointer, assuming it is an Emacs Lisp frame value.
+end
+
+define xcompiled
+  xgetptr $
+  print (struct Lisp_Vector *) $ptr
+  output ($->contents[0])@($->size & 0xff)
+end
+document xcompiled
+Print $ as a compiled function pointer, assuming it is an Emacs Lisp compiled value.
+end
+
+define xwindow
+  xgetptr $
+  print (struct window *) $ptr
+  set $window = (struct window *) $ptr
+  xgetint $window->total_cols
+  set $width=$int
+  xgetint $window->total_lines
+  set $height=$int
+  xgetint $window->left_col
+  set $left=$int
+  xgetint $window->top_line
+  set $top=$int
+  printf "%dx%d+%d+%d\n", $width, $height, $left, $top
 end
 document xwindow
-Print $ as a screen pointer, assuming it is an Elisp screen value.
+Print $ as a window pointer, assuming it is an Emacs Lisp window value.
+Print the window's position as "WIDTHxHEIGHT+LEFT+TOP".
+end
+
+define xwinconfig
+  xgetptr $
+  print (struct save_window_data *) $ptr
+end
+document xwinconfig
+Print $ as a window configuration pointer, assuming it is an Emacs Lisp window configuration value.
+end
+
+define xsubr
+  xgetptr $
+  print (struct Lisp_Subr *) $ptr
+  output *$
+  echo \n
+end
+document xsubr
+Print the address of the subr which the Lisp_Object $ points to.
+end
+
+define xchartable
+  xgetptr $
+  print (struct Lisp_Char_Table *) $ptr
+  printf "Purpose: "
+  xprintsym $->purpose
+  printf "  %d extra slots", ($->size & 0x1ff) - 388
+  echo \n
+end
+document xchartable
+Print the address of the char-table $, and its purpose.
+This command assumes that $ is an Emacs Lisp char-table value.
+end
+
+define xboolvector
+  xgetptr $
+  print (struct Lisp_Bool_Vector *) $ptr
+  output ($->size > 256) ? 0 : ($->data[0])@((($->size & ~gdb_array_mark_flag) + 7)/ 8)
+  echo \n
+end
+document xboolvector
+Print the contents and address of the bool-vector $.
+This command assumes that $ is an Emacs Lisp bool-vector value.
+end
+
+define xbuffer
+  xgetptr $
+  print (struct buffer *) $ptr
+  xgetptr $->name
+  output ((struct Lisp_String *) $ptr)->data
+  echo \n
+end
+document xbuffer
+Set $ as a buffer pointer, assuming it is an Emacs Lisp buffer value.
+Print the name of the buffer.
+end
+
+define xhashtable
+  xgetptr $
+  print (struct Lisp_Hash_Table *) $ptr
+end
+document xhashtable
+Set $ as a hash table pointer, assuming it is an Emacs Lisp hash table value.
 end
 
 define xcons
-print (struct Lisp_Cons *) ($ & 0x00ffffff)
-print *$
-print $$
+  xgetptr $
+  print (struct Lisp_Cons *) $ptr
+  output/x *$
+  echo \n
 end
 document xcons
-Print the contents of $, assuming it is an Elisp cons.
+Print the contents of $, assuming it is an Emacs Lisp cons.
 end
 
+define nextcons
+  p $.u.cdr
+  xcons
+end
+document nextcons
+Print the contents of the next cell in a list.
+This assumes that the last thing you printed was a cons cell contents
+(type struct Lisp_Cons) or a pointer to one.
+end
 define xcar
-print ((($ >> 24) & 0x7f) == Lisp_Cons ? ((struct Lisp_Cons *) ($ & 0x00ffffff))->car : 0)
+  xgetptr $
+  xgettype $
+  print/x ($type == Lisp_Cons ? ((struct Lisp_Cons *) $ptr)->car : 0)
 end
 document xcar
-Print the car of $, assuming it is an Elisp pair.
+Print the car of $, assuming it is an Emacs Lisp pair.
 end
 
 define xcdr
-print ((($ >> 24) & 0x7f) == Lisp_Cons ? ((struct Lisp_Cons *) ($ & 0x00ffffff))->cdr : 0)
+  xgetptr $
+  xgettype $
+  print/x ($type == Lisp_Cons ? ((struct Lisp_Cons *) $ptr)->u.cdr : 0)
 end
 document xcdr
-Print the cdr of $, assuming it is an Elisp pair.
+Print the cdr of $, assuming it is an Emacs Lisp pair.
 end
 
-set print pretty on
+define xlist
+  xgetptr $
+  set $cons = (struct Lisp_Cons *) $ptr
+  xgetptr Qnil
+  set $nil = $ptr
+  set $i = 0
+  while $cons != $nil && $i < 10
+    p/x $cons->car
+    xpr
+    xgetptr $cons->u.cdr
+    set $cons = (struct Lisp_Cons *) $ptr
+    set $i = $i + 1
+    printf "---\n"
+  end
+  if $cons == $nil
+    printf "nil\n"
+  else
+    printf "...\n"
+    p $ptr
+  end
+end
+document xlist
+Print $ assuming it is a list.
+end
+
+define xfloat
+  xgetptr $
+  print ((struct Lisp_Float *) $ptr)->u.data
+end
+document xfloat
+Print $ assuming it is a lisp floating-point number.
+end
+
+define xscrollbar
+  xgetptr $
+  print (struct scrollbar *) $ptr
+output *$
+echo \n
+end
+document xscrollbar
+Print $ as a scrollbar pointer.
+end
+
+define xpr
+  xtype
+  if $type == Lisp_Int
+    xint
+  end
+  if $type == Lisp_Symbol
+    xsymbol
+  end
+  if $type == Lisp_String
+    xstring
+  end
+  if $type == Lisp_Cons
+    xcons
+  end
+  if $type == Lisp_Float
+    xfloat
+  end
+  if $type == Lisp_Misc
+    set $misc = (enum Lisp_Misc_Type) (((struct Lisp_Free *) $ptr)->type)
+    if $misc == Lisp_Misc_Free
+      xmiscfree
+    end
+    if $misc == Lisp_Misc_Boolfwd
+      xboolfwd
+    end
+    if $misc == Lisp_Misc_Marker
+      xmarker
+    end
+    if $misc == Lisp_Misc_Intfwd
+      xintfwd
+    end
+    if $misc == Lisp_Misc_Boolfwd
+      xboolfwd
+    end
+    if $misc == Lisp_Misc_Objfwd
+      xobjfwd
+    end
+    if $misc == Lisp_Misc_Buffer_Objfwd
+      xbufobjfwd
+    end
+    if $misc == Lisp_Misc_Buffer_Local_Value
+      xbuflocal
+    end
+#    if $misc == Lisp_Misc_Some_Buffer_Local_Value
+#      xvalue
+#    end
+    if $misc == Lisp_Misc_Overlay
+      xoverlay
+    end
+    if $misc == Lisp_Misc_Kboard_Objfwd
+      xkbobjfwd
+    end
+#    if $misc == Lisp_Misc_Save_Value
+#      xsavevalue
+#    end
+  end
+  if $type == Lisp_Vectorlike
+    set $size = ((struct Lisp_Vector *) $ptr)->size
+    if ($size & PVEC_FLAG)
+      set $vec = (enum pvec_type) ($size & PVEC_TYPE_MASK)
+      if $vec == PVEC_NORMAL_VECTOR
+	xvector
+      end
+      if $vec == PVEC_PROCESS
+	xprocess
+      end
+      if $vec == PVEC_FRAME
+	xframe
+      end
+      if $vec == PVEC_COMPILED
+	xcompiled
+      end
+      if $vec == PVEC_WINDOW
+	xwindow
+      end
+      if $vec == PVEC_WINDOW_CONFIGURATION
+	xwinconfig
+      end
+      if $vec == PVEC_SUBR
+	xsubr
+      end
+      if $vec == PVEC_CHAR_TABLE
+	xchartable
+      end
+      if $vec == PVEC_BOOL_VECTOR
+	xboolvector
+      end
+      if $vec == PVEC_BUFFER
+	xbuffer
+      end
+      if $vec == PVEC_HASH_TABLE
+	xhashtable
+      end
+    else
+      xvector
+    end
+  end
+end
+document xpr
+Print $ as a lisp object of any type.
+end
+
+define xprintstr
+  set $data = $arg0->data
+  output ($arg0->size > 1000) ? 0 : ($data[0])@($arg0->size_byte < 0 ? $arg0->size & ~gdb_array_mark_flag : $arg0->size_byte)
+end
+
+define xprintsym
+  xgetptr $arg0
+  set $sym = (struct Lisp_Symbol *) $ptr
+  xgetptr $sym->xname
+  set $sym_name = (struct Lisp_String *) $ptr
+  xprintstr $sym_name
+end
+document xprintsym
+  Print argument as a symbol.
+end
+
+define xbacktrace
+  set $bt = backtrace_list
+  while $bt
+    xgettype (*$bt->function)
+    if $type == Lisp_Symbol
+      xprintsym (*$bt->function)
+      printf " (0x%x)\n", *$bt->args
+    else
+      printf "0x%x ", *$bt->function
+      if $type == Lisp_Vectorlike
+	xgetptr (*$bt->function)
+        set $size = ((struct Lisp_Vector *) $ptr)->size
+        output ($size & PVEC_FLAG) ? (enum pvec_type) ($size & PVEC_TYPE_MASK) : $size & ~gdb_array_mark_flag
+      else
+        printf "Lisp type %d", $type
+      end
+      echo \n
+    end
+    set $bt = $bt->next
+  end
+end
+document xbacktrace
+  Print a backtrace of Lisp function calls from backtrace_list.
+  Set a breakpoint at Fsignal and call this to see from where
+  an error was signaled.
+end
+
+define which
+  set debug_print (which_symbols ($arg0))
+end
+document which
+  Print symbols which references a given lisp object,
+  either as its symbol value or symbol function.
+end
+
+define xbytecode
+  set $bt = byte_stack_list
+  while $bt
+    xgettype ($bt->byte_string)
+    printf "0x%x => ", $bt->byte_string
+    which $bt->byte_string
+    set $bt = $bt->next
+  end
+end
+document xbytecode
+  Print a backtrace of the byte code stack.
+end
+
+# Show Lisp backtrace after normal backtrace.
+define hookpost-backtrace
+  set $bt = backtrace_list
+  if $bt
+    echo \n
+    echo Lisp Backtrace:\n
+    xbacktrace
+  end
+end
 
-# Don't let abort actually run, as it will make
-# stdio stop working and therefore the `pr' command below as well.
-break abort
+define xreload
+  set $tagmask = (((long)1 << gdb_gctypebits) - 1)
+  set $valmask = gdb_use_lsb ? ~($tagmask) : ((long)1 << gdb_valbits) - 1
+end
+document xreload
+  When starting Emacs a second time in the same gdb session under
+  FreeBSD 2.2.5, gdb 4.13, $valmask have lost
+  their values.  (The same happens on current (2000) versions of GNU/Linux
+  with gdb 5.0.)
+  This function reloads them.
+end
+xreload
+
+# Flush display (X only)
+define ff
+  set x_flush (0)
+end
+document ff
+Flush pending X window display updates to screen.
+Works only when an inferior emacs is executing.
+end
 
-# If we are running in synchronous mode, we want a chance to look around
-# before Emacs exits.  Perhaps we should put the break somewhere else
-# instead...
-break _XPrintDefaultError
 
-unset environment TERMCAP
-unset environment TERM
-set environment DISPLAY :0.0
+define hook-run
+  xreload
+end
+
+# Call xreload if a new Emacs executable is loaded.
+define hookpost-run
+  xreload
+end
+
+set print pretty on
+set print sevenbit-strings
+
 show environment DISPLAY
-set args -q
+show environment TERM
+set args -geometry 80x40+0+0
+
+# People get bothered when they see messages about non-existent functions...
+xgetptr Vsystem_type
+# $ptr is NULL in temacs
+if ($ptr != 0)
+  set $tem = (struct Lisp_Symbol *) $ptr
+  xgetptr $tem->xname
+  set $tem = (struct Lisp_String *) $ptr
+  set $tem = (char *) $tem->data
+
+  # Don't let abort actually run, as it will make stdio stop working and
+  # therefore the `pr' command above as well.
+  if $tem[0] == 'w' && $tem[1] == 'i' && $tem[2] == 'n' && $tem[3] == 'd'
+    # The windows-nt build replaces abort with its own function.
+    break w32_abort
+  else
+    break abort
+  end
+end
+
+# x_error_quitter is defined only on X.  But window-system is set up
+# only at run time, during Emacs startup, so we need to defer setting
+# the breakpoint.  init_sys_modes is the first function called on
+# every platform after init_display, where window-system is set.
+tbreak init_sys_modes
+commands
+  silent
+  xgetptr Vwindow_system
+  set $tem = (struct Lisp_Symbol *) $ptr
+  xgetptr $tem->xname
+  set $tem = (struct Lisp_String *) $ptr
+  set $tem = (char *) $tem->data
+  # If we are running in synchronous mode, we want a chance to look
+  # around before Emacs exits.  Perhaps we should put the break
+  # somewhere else instead...
+  if $tem[0] == 'x' && $tem[1] == '\0'
+    break x_error_quitter
+  end
+  continue
+end
+# arch-tag: 12f34321-7bfa-4240-b77a-3cd3a1696dfe