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3092
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1 ## -*- ksh -*-
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2 ## Copyright (C) 1998 Free Software Foundation, Inc.
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3
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4 ## This file is part of XEmacs.
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5
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6 ## XEmacs is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by the
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8 ## Free Software Foundation; either version 2, or (at your option) any
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9 ## later version.
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10
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11 ## XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 ## for more details.
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15
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with XEmacs; see the file COPYING. If not, write to
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18 ## the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 ## Boston, MA 02111-1307, USA.
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20
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21 ## Author: Martin Buchholz
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22
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23 ## Some useful commands for debugging emacs with gdb 4.16 or better.
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24 ##
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25 ## Since this file is called `.gdbinit', it will be read by gdb
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26 ## automatically when gdb is run in the build directory, which is where
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27 ## developers usually debug their xemacs. You can also source this
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28 ## file from your ~/.gdbinit, if you like.
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29 ##
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30 ## Configure xemacs with --debug, and compile with -g.
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31 ##
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32 ## See also the question of the XEmacs FAQ, titled
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33 ## "How to Debug an XEmacs problem with a debugger".
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34 ##
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35 ## This can be used to debug XEmacs no matter how the following are
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36 ## specified:
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37
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38 ## USE_UNION_TYPE
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39
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40 ## (the above all have configure equivalents)
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41
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42 ## Some functions defined here require a running process, but most
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43 ## don't. Considerable effort has been expended to this end.
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44
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45 ## See the dbg_ C support code in src/alloc.c that allows the functions
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46 ## defined in this file to work correctly.
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47
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48 #define NOT_C_CODE
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49 #include "config.h"
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50
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51 set print union off
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52 set print pretty off
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53
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54 #ifdef VDB_POSIX
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55 handle SIGSEGV SIGBUS nostop noprint
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56 #endif
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57
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58 set $Lisp_Type_Int = -2
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59
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60 define decode_object
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61 set $obj = (unsigned long) $arg0
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62 if $obj & 1
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63 ## It's an int
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64 set $val = $obj >> 1
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65 set $type = $Lisp_Type_Int
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66 else
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67 set $type = $obj & dbg_typemask
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68 if $type == Lisp_Type_Char
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69 set $val = ($obj & dbg_valmask) >> dbg_gctypebits
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70 else
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71 ## It's a record pointer
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72 set $val = $obj
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73 end
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74 end
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75
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76 if $type == Lisp_Type_Record
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77 set $lheader = ((struct lrecord_header *) $val)
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78 set $lrecord_type = ($lheader->type)
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79 set $imp = ((struct lrecord_implementation *) lrecord_implementations_table[(int) $lrecord_type])
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80 else
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81 set $lrecord_type = -1
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82 set $lheader = -1
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83 set $imp = -1
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84 end
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85 end
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86
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87 document decode_object
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88 Usage: decode_object lisp_object
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89 Extract implementation information from a Lisp Object.
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90 Defines variables $val, $type and $imp.
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91 end
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92
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93 define xint
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94 decode_object $arg0
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95 print ((long) $val)
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96 end
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97
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98 define xtype
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99 decode_object $arg0
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100 if $type == $Lisp_Type_Int
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101 echo int\n
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102 else
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103 if $type == Lisp_Type_Char
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104 echo char\n
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105 else
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106 printf "record type: %s\n", $imp->name
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107 end
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108 end
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109 end
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110
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111 document xtype
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112 Usage: xtype lisp_object
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113 Print the Lisp type of a lisp object.
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114 end
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115
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116 define lisp-shadows
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117 run -batch -vanilla -f list-load-path-shadows
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118 end
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119
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120 document lisp-shadows
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121 Usage: lisp-shadows
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122 Run xemacs to check for lisp shadows
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123 end
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124
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125 define environment-to-run-temacs
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126 unset env EMACSLOADPATH
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127 set env EMACSBOOTSTRAPLOADPATH=../lisp/:..
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128 set env EMACSBOOTSTRAPMODULEPATH=../modules/:..
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129 end
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130
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131 define run-temacs
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132 environment-to-run-temacs
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133 run -nd -batch -l ../lisp/loadup.el run-temacs -q
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134 end
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135
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136 document run-temacs
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137 Usage: run-temacs
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138 Run temacs interactively, like xemacs.
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139 Use this with debugging tools (like purify) that cannot deal with dumping,
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140 or when temacs builds successfully, but xemacs does not.
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141 end
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142
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143 define check-xemacs
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144 run -batch -l ../tests/automated/test-harness.el -f batch-test-emacs ../tests/automated
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145 end
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146
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147 document check-xemacs
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148 Usage: check-xemacs
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149 Run the test suite. Equivalent to 'make check'.
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150 end
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151
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152 define check-temacs
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153 environment-to-run-temacs
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154 run -nd -batch -l ../lisp/loadup.el run-temacs -q -batch -l ../tests/automated/test-harness.el -f batch-test-emacs ../tests/automated
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155 end
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156
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157 document check-temacs
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158 Usage: check-temacs
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159 Run the test suite on temacs. Equivalent to 'make check-temacs'.
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160 Use this with debugging tools (like purify) that cannot deal with dumping,
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161 or when temacs builds successfully, but xemacs does not.
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162 end
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163
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164 define update-elc
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165 environment-to-run-temacs
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166 run -nd -batch -l ../lisp/update-elc.el
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167 end
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168
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169 document update-elc
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170 Usage: update-elc
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171 Run the core lisp byte compilation part of the build procedure.
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172 Use when debugging temacs, not xemacs!
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173 Use this when temacs builds successfully, but xemacs does not.
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174 end
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175
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176 define dmp
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177 environment-to-run-temacs
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178 run -nd -batch -l ../lisp/loadup.el dump
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179 end
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180
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181 document dmp
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182 Usage: dmp
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183 Run the dumping part of the build procedure.
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184 Use when debugging temacs, not xemacs!
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185 Use this when temacs builds successfully, but xemacs does not.
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186 end
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187
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188 define ldp
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189 printf "%s", "Lisp => "
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190 call debug_print($arg0)
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191 end
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192
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193 document ldp
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194 Usage: ldp lisp_object
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195 Print a Lisp Object value using the Lisp printer.
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196 Requires a running xemacs process.
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197 end
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198
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199 define lbt
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200 call debug_backtrace()
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201 end
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202
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203 document lbt
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204 Usage: lbt
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205 Print the current Lisp stack trace.
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206 Requires a running xemacs process.
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207 end
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208
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209
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210 define leval
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211 ldp Feval(Fcar(Fread_from_string(build_string($arg0),Qnil,Qnil)))
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212 end
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213
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214 document leval
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215 Usage: leval "SEXP"
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216 Eval a lisp expression.
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217 Requires a running xemacs process.
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218
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219 Example:
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220 (gdb) leval "(+ 1 2)"
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221 Lisp ==> 3
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222 end
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223
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224
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225 define wtype
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226 print $arg0->core.widget_class->core_class.class_name
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227 end
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228
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229 define xtname
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230 print XrmQuarkToString(((Object)($arg0))->object.xrm_name)
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231 end
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232
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233 ## GDB's command language makes you want to ...
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234
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235 define pptype
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236 set $type_ptr = ($arg0 *) $val
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237 print $type_ptr
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238 print *$type_ptr
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239 end
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240
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241 define pstructtype
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242 set $type_ptr = (struct $arg0 *) $val
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243 print $type_ptr
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244 print *$type_ptr
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245 end
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246
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247 define pobj
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248 decode_object $arg0
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249 if $type == $Lisp_Type_Int
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250 printf "Integer: %d\n", $val
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251 else
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252 if $type == Lisp_Type_Char
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253 if $val > 32 && $val < 128
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254 printf "Char: %c\n", $val
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255 else
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256 printf "Char: %d\n", $val
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257 end
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258 else
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259 if $lrecord_type == lrecord_type_string
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260 pptype Lisp_String
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261 else
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262 if $lrecord_type == lrecord_type_cons
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263 pptype Lisp_Cons
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264 else
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265 if $lrecord_type == lrecord_type_symbol
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266 pptype Lisp_Symbol
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267 printf "Symbol name: %s\n", ((Lisp_String *)$type_ptr->name)->data_
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268 else
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269 if $lrecord_type == lrecord_type_vector
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270 pptype Lisp_Vector
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271 printf "Vector of length %d\n", $type_ptr->size
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272 ##print *($type_ptr->data) @ $type_ptr->size
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273 else
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274 if $lrecord_type == lrecord_type_bit_vector
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275 pptype Lisp_Bit_Vector
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276 else
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277 if $lrecord_type == lrecord_type_buffer
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278 pstructtype buffer
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279 else
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280 if $lrecord_type == lrecord_type_char_table
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281 pptype Lisp_Char_Table
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282 else
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283 if $lrecord_type == lrecord_type_char_table_entry
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284 pptype Lisp_Char_Table_Entry
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285 else
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286 if $lrecord_type == lrecord_type_charset
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287 pptype Lisp_Charset
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288 else
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289 if $lrecord_type == lrecord_type_coding_system
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290 pptype Lisp_Coding_System
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291 else
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292 if $lrecord_type == lrecord_type_color_instance
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293 pptype Lisp_Color_Instance
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294 else
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295 if $lrecord_type == lrecord_type_command_builder
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296 pptype command_builder
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297 else
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298 if $lrecord_type == lrecord_type_compiled_function
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299 pptype Lisp_Compiled_Function
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300 else
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301 if $lrecord_type == lrecord_type_console
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302 pstructtype console
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303 else
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304 if $lrecord_type == lrecord_type_database
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305 pptype Lisp_Database
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306 else
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307 if $lrecord_type == lrecord_type_device
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308 pstructtype device
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309 else
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310 if $lrecord_type == lrecord_type_event
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311 pptype Lisp_Event
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312 else
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313 if $lrecord_type == lrecord_type_extent
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314 pstructtype extent
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315 else
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316 if $lrecord_type == lrecord_type_extent_auxiliary
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317 pstructtype extent_auxiliary
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318 else
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319 if $lrecord_type == lrecord_type_extent_info
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320 pstructtype extent_info
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321 else
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322 if $lrecord_type == lrecord_type_face
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323 pptype Lisp_Face
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324 else
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325 if $lrecord_type == lrecord_type_float
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326 pptype Lisp_Float
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327 else
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328 if $lrecord_type == lrecord_type_font_instance
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329 pptype Lisp_Font_Instance
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330 else
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331 if $lrecord_type == lrecord_type_frame
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332 pstructtype frame
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333 else
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334 if $lrecord_type == lrecord_type_glyph
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335 pptype Lisp_Glyph
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336 else
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337 if $lrecord_type == lrecord_type_gui_item
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338 pptype Lisp_Gui_Item
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339 else
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340 if $lrecord_type == lrecord_type_hash_table
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341 pptype Lisp_Hash_Table
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342 else
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343 if $lrecord_type == lrecord_type_image_instance
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344 pptype Lisp_Image_Instance
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345 else
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346 if $lrecord_type == lrecord_type_keymap
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347 pptype Lisp_Keymap
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348 else
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349 if $lrecord_type == lrecord_type_lcrecord_list
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350 pstructtype lcrecord_list
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351 else
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352 if $lrecord_type == lrecord_type_ldap
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353 pptype Lisp_LDAP
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354 else
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355 if $lrecord_type == lrecord_type_lstream
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356 pstructtype lstream
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357 else
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358 if $lrecord_type == lrecord_type_marker
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359 pptype Lisp_Marker
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360 else
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361 if $lrecord_type == lrecord_type_opaque
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362 pptype Lisp_Opaque
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363 else
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364 if $lrecord_type == lrecord_type_opaque_ptr
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365 pptype Lisp_Opaque_Ptr
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366 else
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367 if $lrecord_type == lrecord_type_popup_data
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368 pptype popup_data
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369 else
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370 if $lrecord_type == lrecord_type_process
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371 pptype Lisp_Process
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372 else
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373 if $lrecord_type == lrecord_type_range_table
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374 pptype Lisp_Range_Table
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375 else
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376 if $lrecord_type == lrecord_type_specifier
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377 pptype Lisp_Specifier
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378 else
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379 if $lrecord_type == lrecord_type_subr
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380 pptype Lisp_Subr
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381 else
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382 if $lrecord_type == lrecord_type_symbol_value_buffer_local
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383 pstructtype symbol_value_buffer_local
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384 else
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385 if $lrecord_type == lrecord_type_symbol_value_forward
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386 pstructtype symbol_value_forward
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387 else
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388 if $lrecord_type == lrecord_type_symbol_value_lisp_magic
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389 pstructtype symbol_value_lisp_magic
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390 else
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391 if $lrecord_type == lrecord_type_symbol_value_varalias
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392 pstructtype symbol_value_varalias
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393 else
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394 if $lrecord_type == lrecord_type_timeout
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395 pptype Lisp_Timeout
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396 else
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397 if $lrecord_type == lrecord_type_toolbar_button
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398 pstructtype toolbar_button
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399 else
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400 if $lrecord_type == lrecord_type_tooltalk_message
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401 pptype Lisp_Tooltalk_Message
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402 else
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403 if $lrecord_type == lrecord_type_tooltalk_pattern
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404 pptype Lisp_Tooltalk_Pattern
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405 else
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406 if $lrecord_type == lrecord_type_weak_list
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407 pstructtype weak_list
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408 else
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409 if $lrecord_type == lrecord_type_window
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410 pstructtype window
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411 else
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412 if $lrecord_type == lrecord_type_window_configuration
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413 pstructtype window_config
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414 else
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415 if $lrecord_type == lrecord_type_fc_pattern
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416 pstructtype fc_pattern
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417 else
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418 if $lrecord_type == lrecord_type_fc_objectset
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419 pstructtype fc_objectset
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420 else
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421 if $lrecord_type == lrecord_type_fc_fontset
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422 pstructtype fc_fontset
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423 else
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424 echo Unknown Lisp Object type\n
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425 print $arg0
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426 ## Barf, gag, retch
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427 end
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428 end
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429 end
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430 end
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431 end
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432 end
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433 end
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434 end
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435 end
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436 end
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437 end
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438 end
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440 end
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443 end
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444 end
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445 end
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446 end
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447 ## Repeat after me... gdb sux, gdb sux, gdb sux...
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448 end
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449 end
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450 end
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451 end
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452 end
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453 end
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454 end
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456 end
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458 end
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462 end
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463 end
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464 end
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465 end
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466 ## Are we having fun yet??
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467 end
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468 end
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469 end
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470 end
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471 end
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472 end
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473 end
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475 end
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477 end
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478 end
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479 end
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480 end
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481 end
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482 end
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483 end
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484 end
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485 end
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486
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487 document pobj
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488 Usage: pobj lisp_object
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489 Print the internal C representation of a Lisp Object.
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490 end
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491
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492 ## -------------------------------------------------------------
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493 ## functions to test the debugging support itself.
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494 ## If you change this file, make sure the following still work...
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495 ## -------------------------------------------------------------
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496 define test_xtype
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497 printf "Vemacs_major_version: "
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498 xtype Vemacs_major_version
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499 printf "Vhelp_char: "
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500 xtype Vhelp_char
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501 printf "Qnil: "
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502 xtype Qnil
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503 printf "Qunbound: "
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504 xtype Qunbound
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505 printf "Vobarray: "
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506 xtype Vobarray
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507 printf "Vall_weak_lists: "
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508 xtype Vall_weak_lists
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509 printf "Vxemacs_codename: "
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510 xtype Vxemacs_codename
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511 end
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512
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513 define test_pobj
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514 printf "Vemacs_major_version: "
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515 pobj Vemacs_major_version
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516 printf "Vhelp_char: "
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517 pobj Vhelp_char
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518 printf "Qnil: "
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519 pobj Qnil
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520 printf "Qunbound: "
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521 pobj Qunbound
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522 printf "Vobarray: "
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523 pobj Vobarray
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524 printf "Vall_weak_lists: "
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525 pobj Vall_weak_lists
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526 printf "Vxemacs_codename: "
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527 pobj Vxemacs_codename
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528 end
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529
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