--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/.dbxrc	Mon Aug 13 11:13:30 2007 +0200
@@ -0,0 +1,394 @@
+# -*- ksh -*-
+# Copyright (C) 1998 Free Software Foundation, Inc.
+
+# This file is part of XEmacs.
+
+# XEmacs 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.
+
+# XEmacs 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 XEmacs; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+# Author: Martin Buchholz
+
+# You can use this file to debug XEmacs using Sun WorkShop's dbx.
+
+# Some functions defined here require a running process, but most
+# don't.  Considerable effort has been expended to this end.
+
+# Since this file is called `.dbxrc', it will be read by dbx
+# automatically when dbx is run in the build directory, which is where
+# developers usually debug their xemacs.
+
+# See also the comments in .gdbinit.
+
+# See also the question of the XEmacs FAQ, titled
+# "How to Debug an XEmacs problem with a debugger".
+
+# gdb sources the ./.gdbinit in _addition_ to ~/.gdbinit.
+# But dbx does _not_ source ~/.dbxrc if it found ./.dbxrc.
+# So we simulate the gdb algorithm by doing it ourselves here.
+if test -r $HOME/.dbxrc; then . $HOME/.dbxrc; fi
+
+dbxenv language_mode ansic
+
+ignore POLL
+ignore IO
+
+document lbt << 'end'
+Usage: lbt
+Print the current Lisp stack trace.
+Requires a running xemacs process.
+end
+
+function lbt {
+  call debug_backtrace()
+}
+
+document ldp << 'end'
+Usage: ldp lisp_object
+Print a Lisp Object value using the Lisp printer.
+Requires a running xemacs process.
+end
+
+function ldp {
+  call debug_print ($1);
+}
+
+# A bug in dbx prevents string variables from having values beginning with `-'!!
+function XEmacsInit {
+  function ToInt { eval "$1=\$[(int) \`alloc.c\`$1]"; }
+  ToInt dbg_USE_UNION_TYPE
+  ToInt Lisp_Type_Int
+  ToInt Lisp_Type_Char
+  ToInt Lisp_Type_Cons
+  ToInt Lisp_Type_String
+  ToInt Lisp_Type_Vector
+  ToInt Lisp_Type_Symbol
+  ToInt Lisp_Type_Record
+  ToInt dbg_valbits
+  ToInt dbg_gctypebits
+  function ToLong { eval "$1=\$[(\`alloc.c\`unsigned long) \`alloc.c\`$1]"; }
+  ToLong dbg_valmask
+  ToLong dbg_typemask
+  xemacs_initted=yes
+}
+
+function printvar {
+  for i in $*; do eval "echo $i=\$$i"; done
+}
+
+document decode_object << 'end'
+Usage: decode_object lisp_object
+Extract implementation information from a Lisp Object.
+Defines variables $val, $type and $imp.
+end
+
+# Various dbx bugs cause ugliness in following code
+function decode_object {
+  if test -z "$xemacs_initted"; then XEmacsInit; fi;
+  if test $dbg_USE_UNION_TYPE = 1; then
+    # Repeat after me... dbx sux, dbx sux, dbx sux...
+    # Allow both `pobj Qnil' and `pobj 0x82746834' to work
+    case $(whatis $1) in
+      *Lisp_Object*) obj="$[(`alloc.c`unsigned long)(($1).i)]";;
+      *) obj="$[(`alloc.c`unsigned long)($1)]";;
+    esac
+  else
+    obj="$[(`alloc.c`unsigned long)($1)]";
+  fi
+  if test $[(int)($obj & 1)] = 1; then
+    # It's an int
+    val=$[(long)(((unsigned long long)$obj) >> 1)]
+    type=$Lisp_Type_Int
+  else
+    type=$[(int)(((void*)$obj) & $dbg_typemask)]
+    if test $type = $Lisp_Type_Char; then
+      val=$[(void*)(long)(((unsigned long long)($obj & $dbg_valmask)) >> $dbg_gctypebits)]
+    else
+      # It's a record pointer
+      val=$[(void*)$obj]
+      if test "$val" = "(nil)"; then type=null_pointer; fi
+    fi
+  fi
+
+  if test $type = $Lisp_Type_Record; then
+    typeset lheader="((struct lrecord_header *) $val)"
+    imp=$[(void*)(`alloc.c`lrecord_implementations_table[$lheader->type])]
+  else
+    imp="0xdeadbeef"
+  fi
+  # printvar obj val type imp
+}
+
+function xint {
+  decode_object "$*"
+  print (long) ($val)
+}
+
+document xtype << 'end'
+Usage: xtype lisp_object
+Print the Lisp type of a lisp object.
+end
+
+function xtype {
+  decode_object "$*"
+  if   test $type = $Lisp_Type_Int;    then echo "int"
+  elif test $type = $Lisp_Type_Char;   then echo "char"
+  elif test $type = $Lisp_Type_Symbol; then echo "symbol"
+  elif test $type = $Lisp_Type_String; then echo "string"
+  elif test $type = $Lisp_Type_Vector; then echo "vector"
+  elif test $type = $Lisp_Type_Cons;   then echo "cons"
+  elif test $type = null_pointer;      then echo "null_pointer"
+  else
+    echo "record type with name: $[((struct lrecord_implementation *)$imp)->name]"
+  fi
+}
+
+function lisp-shadows {
+  run -batch -vanilla -f list-load-path-shadows
+}
+
+function environment-to-run-temacs {
+  unset EMACSLOADPATH
+  export EMACSBOOTSTRAPLOADPATH=../lisp/:..
+  export EMACSBOOTSTRAPMODULEPATH=../modules/:..
+}
+
+document run-temacs << 'end'
+Usage: run-temacs
+Run temacs interactively, like xemacs.
+Use this with debugging tools (like purify) that cannot deal with dumping,
+or when temacs builds successfully, but xemacs does not.
+end
+
+function run-temacs {
+  environment-to-run-temacs
+  run -batch -l ../lisp/loadup.el run-temacs -q ${1+"$@"}
+}
+
+document check-xemacs << 'end'
+Usage: check-xemacs
+Run the test suite.  Equivalent to 'make check'.
+end
+
+function check-xemacs {
+  run -batch -l ../tests/automated/test-harness.el -f batch-test-emacs ../tests/automated
+}
+
+document check-temacs << 'end'
+Usage: check-temacs
+Run the test suite on temacs.  Equivalent to 'make check-temacs'.
+Use this with debugging tools (like purify) that cannot deal with dumping,
+or when temacs builds successfully, but xemacs does not.
+end
+
+function check-temacs {
+  run-temacs -q -batch -l ../tests/automated/test-harness.el -f batch-test-emacs ../tests/automated
+}
+
+document update-elc << 'end'
+Usage: update-elc
+Run the core lisp byte compilation part of the build procedure.
+Use when debugging temacs, not xemacs!
+Use this when temacs builds successfully, but xemacs does not.
+end
+
+function update-elc {
+  environment-to-run-temacs
+  run -batch -l ../lisp/update-elc.el
+}
+
+document dump-temacs << 'end'
+Usage: dump-temacs
+Run the dumping part of the build procedure.
+Use when debugging temacs, not xemacs!
+Use this when temacs builds successfully, but xemacs does not.
+end
+
+function dump-temacs {
+  environment-to-run-temacs
+  run -batch -l ../lisp/loadup.el dump
+}
+
+function pstruct {
+  xstruct="((struct $1 *) $val)"
+  print $xstruct
+  print *$xstruct
+}
+
+function lrecord_type_p {
+  if eval test -z \"\$lrecord_$1\" && test $imp = $[(void*)(&lrecord_$1)]; then return 0; else return 1; fi
+}
+
+document pobj << 'end'
+Usage: pobj lisp_object
+Print the internal C representation of a Lisp Object.
+end
+
+function pobj {
+  decode_object $1
+  if test $type = $Lisp_Type_Int; then
+    print -f"Integer: %d" $val
+  elif test $type = $Lisp_Type_Char; then
+    if test $[$val > 32 && $val < 128] = 1; then
+      print -f"Char: %c" $val
+    else
+      print -f"Char: %d" $val
+    fi
+  elif test $type = $Lisp_Type_String || lrecord_type_p string; then
+    pstruct Lisp_String
+  elif test $type = $Lisp_Type_Cons   || lrecord_type_p cons; then
+    pstruct Lisp_Cons
+  elif test $type = $Lisp_Type_Symbol || lrecord_type_p symbol; then
+    pstruct Lisp_Symbol
+    echo "Symbol name: $[(char *)($xstruct->name->data)]"
+  elif test $type = $Lisp_Type_Vector || lrecord_type_p vector; then
+    pstruct Lisp_Vector
+    echo "Vector of length $[$xstruct->size]"
+  elif lrecord_type_p bit_vector; then
+    pstruct Lisp_Bit_Vector
+  elif lrecord_type_p buffer; then
+    pstruct buffer
+  elif lrecord_type_p char_table; then
+    pstruct Lisp_Char_Table
+  elif lrecord_type_p char_table_entry; then
+    pstruct Lisp_Char_Table_Entry
+  elif lrecord_type_p charset; then
+    pstruct Lisp_Charset
+  elif lrecord_type_p coding_system; then
+    pstruct Lisp_Coding_System
+  elif lrecord_type_p color_instance; then
+    pstruct Lisp_Color_Instance
+  elif lrecord_type_p command_builder; then
+    pstruct command_builder
+  elif lrecord_type_p compiled_function; then
+    pstruct Lisp_Compiled_Function
+  elif lrecord_type_p console; then
+    pstruct console
+  elif lrecord_type_p database; then
+    pstruct Lisp_Database
+  elif lrecord_type_p device; then
+    pstruct device
+  elif lrecord_type_p event; then
+    pstruct Lisp_Event
+  elif lrecord_type_p extent; then
+    pstruct extent
+  elif lrecord_type_p extent_auxiliary; then
+    pstruct extent_auxiliary
+  elif lrecord_type_p extent_info; then
+    pstruct extent_info
+  elif lrecord_type_p face; then
+    pstruct Lisp_Face
+  elif lrecord_type_p float; then
+    pstruct Lisp_Float
+  elif lrecord_type_p font_instance; then
+    pstruct Lisp_Font_Instance
+  elif lrecord_type_p frame; then
+    pstruct frame
+  elif lrecord_type_p glyph; then
+    pstruct Lisp_Glyph
+  elif lrecord_type_p hash_table; then
+    pstruct Lisp_Hash_Table
+  elif lrecord_type_p image_instance; then
+    pstruct Lisp_Image_Instance
+  elif lrecord_type_p keymap; then
+    pstruct Lisp_Keymap
+  elif lrecord_type_p lcrecord_list; then
+    pstruct lcrecord_list
+  elif lrecord_type_p lstream; then
+    pstruct lstream
+  elif lrecord_type_p marker; then
+    pstruct Lisp_Marker
+  elif lrecord_type_p opaque; then
+    pstruct Lisp_Opaque
+  elif lrecord_type_p opaque_ptr; then
+    pstruct Lisp_Opaque_Ptr
+  elif lrecord_type_p popup_data; then
+    pstruct popup_data
+  elif lrecord_type_p process; then
+    pstruct Lisp_Process
+  elif lrecord_type_p range_table; then
+    pstruct Lisp_Range_Table
+  elif lrecord_type_p specifier; then
+    pstruct Lisp_Specifier
+  elif lrecord_type_p subr; then
+    pstruct Lisp_Subr
+  elif lrecord_type_p symbol_value_buffer_local; then
+    pstruct symbol_value_buffer_local
+  elif lrecord_type_p symbol_value_forward; then
+    pstruct symbol_value_forward
+  elif lrecord_type_p symbol_value_lisp_magic; then
+    pstruct symbol_value_lisp_magic
+  elif lrecord_type_p symbol_value_varalias; then
+    pstruct symbol_value_varalias
+  elif lrecord_type_p toolbar_button; then
+    pstruct toolbar_button
+  elif lrecord_type_p tooltalk_message; then
+    pstruct Lisp_Tooltalk_Message
+  elif lrecord_type_p tooltalk_pattern; then
+    pstruct Lisp_Tooltalk_Pattern
+  elif lrecord_type_p weak_list; then
+    pstruct weak_list
+  elif lrecord_type_p window; then
+    pstruct window
+  elif lrecord_type_p window_configuration; then
+    pstruct window_config
+  elif test "$type" = "null_pointer"; then
+    echo "Lisp Object is a null pointer!!"
+  else
+    echo "Unknown Lisp Object type"
+    print $1
+  fi
+}
+
+function pproc {
+  print *(`process.c`struct Lisp_Process*)$1 ;
+  ldp "(`process.c`struct Lisp_Process*)$1->name" ;
+  ldp "(`process.c`struct Lisp_Process*)$1->command" ;
+}
+
+dbxenv suppress_startup_message 4.0
+dbxenv mt_watchpoints on
+
+function dp_core {
+  print ((struct x_frame *)(((struct frame*)(Fselected_frame(Qnil)&0x00FFFFFF))->frame_data))->widget->core
+}
+
+# Barf!
+function print_shell {
+  print *(`frame-x.c`TopLevelShellRec*) (((struct `frame-x.c`x_frame*) (((struct `frame-x.c`frame*) (Fselected_frame(Qnil)&0x00FFFFFF))->frame_data))->widget)
+}
+
+# -------------------------------------------------------------
+# functions to test the debugging support itself.
+# If you change this file, make sure the following still work...
+# -------------------------------------------------------------
+function test_xtype {
+  function doit { echo -n "$1: "; xtype "$1"; }
+  test_various_objects
+}
+
+function test_pobj {
+  function doit { echo '==============================='; echo -n "$1: "; pobj "$1"; }
+  test_various_objects
+}
+
+function test_various_objects {
+  doit Vemacs_major_version
+  doit Vhelp_char
+  doit Qnil
+  doit Qunbound
+  doit Vobarray
+  doit Vall_weak_lists
+  doit Vxemacs_codename
+}