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1 ;;; gdb.el --- run gdb under Emacs
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2
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3 ;; Author: W. Schelter, University of Texas
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4 ;; wfs@rascal.ics.utexas.edu
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5 ;; Rewritten by rms.
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6 ;; Keywords: c, unix, tools, debugging
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7
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8 ;; Some ideas are due to Masanobu.
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9
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10 ;; This file is part of XEmacs.
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11
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12 ;; XEmacs is free software; you can redistribute it and/or modify it
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13 ;; under the terms of the GNU General Public License as published by
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14 ;; the Free Software Foundation; either version 2, or (at your option)
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15 ;; any later version.
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16
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17 ;; XEmacs is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; General Public License for more details.
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21
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22 ;; You should have received a copy of the GNU General Public License
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72
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23 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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24 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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25 ;; 02111-1307, USA.
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26
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27 ;;; Synched up with: Not in FSF
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28
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29 ;;; Commentary:
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30
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31 ;; Description of GDB interface:
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32
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33 ;; A facility is provided for the simultaneous display of the source code
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34 ;; in one window, while using gdb to step through a function in the
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35 ;; other. A small arrow in the source window, indicates the current
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36 ;; line.
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37
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38 ;; Starting up:
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39
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40 ;; In order to use this facility, invoke the command GDB to obtain a
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41 ;; shell window with the appropriate command bindings. You will be asked
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42 ;; for the name of a file to run. Gdb will be invoked on this file, in a
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43 ;; window named *gdb-foo* if the file is foo.
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44
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45 ;; M-s steps by one line, and redisplays the source file and line.
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46
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47 ;; You may easily create additional commands and bindings to interact
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48 ;; with the display. For example to put the gdb command next on \M-n
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49 ;; (def-gdb next "\M-n")
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50
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51 ;; This causes the emacs command gdb-next to be defined, and runs
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52 ;; gdb-display-frame after the command.
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53
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54 ;; gdb-display-frame is the basic display function. It tries to display
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55 ;; in the other window, the file and line corresponding to the current
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56 ;; position in the gdb window. For example after a gdb-step, it would
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57 ;; display the line corresponding to the position for the last step. Or
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58 ;; if you have done a backtrace in the gdb buffer, and move the cursor
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59 ;; into one of the frames, it would display the position corresponding to
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60 ;; that frame.
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61
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62 ;; gdb-display-frame is invoked automatically when a filename-and-line-number
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63 ;; appears in the output.
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64
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72
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65 ;;; Code:
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66
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67 (require 'comint)
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68 (require 'shell)
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69
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70 (condition-case nil
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71 (if (featurep 'toolbar)
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72 (require 'eos-toolbar "sun-eos-toolbar"))
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73 (error nil))
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74
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75 (defvar gdb-last-frame)
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76 (defvar gdb-delete-prompt-marker)
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77 (defvar gdb-filter-accumulator)
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78 (defvar gdb-last-frame-displayed-p)
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79 (defvar gdb-arrow-extent nil)
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80 (or (fboundp 'make-glyph) (fset 'make-glyph 'identity)) ; work w/ pre beta v12
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81 (defvar gdb-arrow-glyph (make-glyph "=>"))
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82
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83 (make-face 'gdb-arrow-face)
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84 (or (face-differs-from-default-p 'gdb-arrow-face)
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85 ;; Usually has a better default value than highlight does
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86 (copy-face 'isearch 'gdb-arrow-face))
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87
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88 ;; Hooks can side-effect extent arg to change extent properties
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89 (defvar gdb-arrow-extent-hooks '())
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90
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91 (defvar gdb-prompt-pattern "^>\\|^(.*gdb[+]?) *\\|^---Type <return> to.*--- *"
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92 "A regexp to recognize the prompt for gdb or gdb+.")
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93
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94 (defvar gdb-mode-map nil
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95 "Keymap for gdb-mode.")
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96
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97 (defvar gdb-toolbar
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98 '([eos::toolbar-stop-at-icon
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99 gdb-toolbar-break
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100 t
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101 "Stop at selected position"]
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102 [eos::toolbar-stop-in-icon
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103 gdb-toolbar-break
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104 t
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105 "Stop in function whose name is selected"]
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106 [eos::toolbar-clear-at-icon
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107 gdb-toolbar-clear
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108 t
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109 "Clear at selected position"]
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110 [eos::toolbar-evaluate-icon
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111 nil
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112 nil
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113 "Evaluate selected expression; shows in separate XEmacs frame"]
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114 [eos::toolbar-evaluate-star-icon
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115 nil
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116 nil
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117 "Evaluate selected expression as a pointer; shows in separate XEmacs frame"]
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118 [eos::toolbar-run-icon
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119 gdb-run
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120 t
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121 "Run current program"]
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122 [eos::toolbar-cont-icon
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123 gdb-cont
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124 t
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125 "Continue current program"]
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126 [eos::toolbar-step-into-icon
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127 gdb-step
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128 t
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129 "Step into (aka step)"]
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130 [eos::toolbar-step-over-icon
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131 gdb-next
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132 t
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133 "Step over (aka next)"]
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134 [eos::toolbar-up-icon
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135 gdb-up
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136 t
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137 "Stack Up (towards \"cooler\" - less recently visited - frames)"]
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138 [eos::toolbar-down-icon
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139 gdb-down
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140 t
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141 "Stack Down (towards \"warmer\" - more recently visited - frames)"]
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142 [eos::toolbar-fix-icon nil nil "Fix (not available with gdb)"]
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143 [eos::toolbar-build-icon
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144 toolbar-compile
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145 t
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146 "Build (aka make -NYI)"]
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147 ))
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148
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149 (if gdb-mode-map
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150 nil
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151 (setq gdb-mode-map (make-sparse-keymap))
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152 (set-keymap-name gdb-mode-map 'gdb-mode-map)
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153 (set-keymap-parents gdb-mode-map (list comint-mode-map))
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154 (define-key gdb-mode-map "\C-l" 'gdb-refresh)
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155 (define-key gdb-mode-map "\C-c\C-c" 'gdb-control-c-subjob)
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156 (define-key gdb-mode-map "\t" 'comint-dynamic-complete)
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157 (define-key gdb-mode-map "\M-?" 'comint-dynamic-list-completions))
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158
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159 (define-key ctl-x-map " " 'gdb-break)
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160 (define-key ctl-x-map "&" 'send-gdb-command)
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161
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162 ;;Of course you may use `def-gdb' with any other gdb command, including
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163 ;;user defined ones.
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164
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165 (defmacro def-gdb (name key &optional doc &rest forms)
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166 (let* ((fun (intern (format "gdb-%s" name)))
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167 (cstr (list 'if '(not (= 1 arg))
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168 (list 'format "%s %s" name 'arg)
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169 name)))
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170 (list 'progn
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171 (nconc (list 'defun fun '(arg)
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172 (or doc "")
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173 '(interactive "p")
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174 (list 'gdb-call cstr))
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175 forms)
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176 (and key (list 'define-key 'gdb-mode-map key (list 'quote fun))))))
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177
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178 (def-gdb "step" "\M-s" "Step one source line with display"
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179 (gdb-delete-arrow-extent))
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180 (def-gdb "stepi" "\M-i" "Step one instruction with display"
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181 (gdb-delete-arrow-extent))
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182 (def-gdb "finish" "\C-c\C-f" "Finish executing current function"
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183 (gdb-delete-arrow-extent))
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184 (def-gdb "run" nil "Run the current program"
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185 (gdb-delete-arrow-extent))
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186
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187 ;;"next" and "cont" were bound to M-n and M-c in Emacs 18, but these are
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188 ;;poor choices, since M-n is used for history navigation and M-c is
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189 ;;capitalize-word. These are defined without key bindings so that users
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190 ;;may choose their own bindings.
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191 (def-gdb "next" "\C-c\C-n" "Step one source line (skip functions)"
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192 (gdb-delete-arrow-extent))
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193 (def-gdb "cont" "\C-c\M-c" "Proceed with the program"
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194 (gdb-delete-arrow-extent))
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195
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196 (def-gdb "up" "\C-c<" "Go up N stack frames (numeric arg) with display")
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197 (def-gdb "down" "\C-c>" "Go down N stack frames (numeric arg) with display")
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198
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199 (defvar gdb-display-mode nil
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200 "Minor mode for gdb frame display")
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201 (or (assq 'gdb-display-mode minor-mode-alist)
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202 (setq minor-mode-alist
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203 (purecopy
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204 (append minor-mode-alist
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205 '((gdb-display-mode " Frame"))))))
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206
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207 (defun gdb-display-mode (&optional arg)
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208 "Toggle GDB Frame display mode
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209 With arg, turn display mode on if and only if arg is positive.
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210 In the display minor mode, source file are displayed in another
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211 window for repective \\[gdb-display-frame] commands."
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212 (interactive "P")
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213 (setq gdb-display-mode (if (null arg)
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214 (not gdb-display-mode)
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215 (> (prefix-numeric-value arg) 0))))
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216
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171
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217 ;; Using cc-mode's syntax table is broken.
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218 (defvar gdb-mode-syntax-table nil
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219 "Syntax table for GDB mode.")
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220
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221 ;; This is adapted from CC Mode 5.11.
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222 (unless gdb-mode-syntax-table
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223 (setq gdb-mode-syntax-table (make-syntax-table))
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224 ;; DO NOT TRY TO SET _ (UNDERSCORE) TO WORD CLASS!
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225 (modify-syntax-entry ?_ "_" gdb-mode-syntax-table)
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226 (modify-syntax-entry ?\\ "\\" gdb-mode-syntax-table)
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227 (modify-syntax-entry ?+ "." gdb-mode-syntax-table)
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228 (modify-syntax-entry ?- "." gdb-mode-syntax-table)
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229 (modify-syntax-entry ?= "." gdb-mode-syntax-table)
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230 (modify-syntax-entry ?% "." gdb-mode-syntax-table)
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231 (modify-syntax-entry ?< "." gdb-mode-syntax-table)
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232 (modify-syntax-entry ?> "." gdb-mode-syntax-table)
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233 (modify-syntax-entry ?& "." gdb-mode-syntax-table)
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234 (modify-syntax-entry ?| "." gdb-mode-syntax-table)
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235 (modify-syntax-entry ?\' "\"" gdb-mode-syntax-table)
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236 ;; add extra comment syntax
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237 (modify-syntax-entry ?/ ". 14" gdb-mode-syntax-table)
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238 (modify-syntax-entry ?* ". 23" gdb-mode-syntax-table))
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239
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240
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241 (defun gdb-mode ()
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242 "Major mode for interacting with an inferior Gdb process.
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243 The following commands are available:
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244
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245 \\{gdb-mode-map}
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246
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247 \\[gdb-display-frame] displays in the other window
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248 the last line referred to in the gdb buffer. See also
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249 \\[gdb-display-mode].
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250
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251 \\[gdb-step],\\[gdb-next], and \\[gdb-nexti] in the gdb window,
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252 call gdb to step,next or nexti and then update the other window
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253 with the current file and position.
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254
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255 If you are in a source file, you may select a point to break
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256 at, by doing \\[gdb-break].
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257
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258 Commands:
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259 Many commands are inherited from comint mode.
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260 Additionally we have:
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261
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262 \\[gdb-display-frame] display frames file in other window
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263 \\[gdb-step] advance one line in program
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264 \\[send-gdb-command] used for special printing of an arg at the current point.
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265 C-x SPACE sets break point at current line."
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266 (interactive)
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267 (comint-mode)
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268 (use-local-map gdb-mode-map)
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171
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269 (set-syntax-table gdb-mode-syntax-table)
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270 (make-local-variable 'gdb-last-frame-displayed-p)
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271 (make-local-variable 'gdb-last-frame)
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272 (make-local-variable 'gdb-delete-prompt-marker)
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273 (make-local-variable 'gdb-display-mode)
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274 (make-local-variable' gdb-filter-accumulator)
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275 (setq gdb-last-frame nil
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276 gdb-delete-prompt-marker nil
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277 gdb-filter-accumulator nil
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278 gdb-display-mode t
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279 major-mode 'gdb-mode
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280 mode-name "Inferior GDB"
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281 comint-prompt-regexp gdb-prompt-pattern
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282 gdb-last-frame-displayed-p t)
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283 (set (make-local-variable 'shell-dirtrackp) t)
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284 ;;(make-local-variable 'gdb-arrow-extent)
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285 (and (extentp gdb-arrow-extent)
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286 (delete-extent gdb-arrow-extent))
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287 (setq gdb-arrow-extent nil)
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288 ;; XEmacs change:
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289 (make-local-hook 'kill-buffer-hook)
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290 (add-hook 'kill-buffer-hook 'gdb-delete-arrow-extent nil t)
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291 (add-hook 'comint-input-filter-functions 'shell-directory-tracker nil t)
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292 (run-hooks 'gdb-mode-hook))
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293
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294 (defun gdb-delete-arrow-extent ()
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295 (let ((inhibit-quit t))
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296 (if gdb-arrow-extent
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297 (delete-extent gdb-arrow-extent))
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298 (setq gdb-arrow-extent nil)))
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299
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300 (defvar current-gdb-buffer nil)
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301
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302 ;;;###autoload
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303 (defvar gdb-command-name "gdb"
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304 "Pathname for executing gdb.")
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305
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306 ;;;###autoload
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307 (defun gdb (path &optional corefile)
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308 "Run gdb on program FILE in buffer *gdb-FILE*.
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309 The directory containing FILE becomes the initial working directory
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310 and source-file directory for GDB. If you wish to change this, use
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311 the GDB commands `cd DIR' and `directory'."
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312 (interactive "FRun gdb on file: ")
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313 (setq path (file-truename (expand-file-name path)))
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314 (let ((file (file-name-nondirectory path)))
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315 (switch-to-buffer (concat "*gdb-" file "*"))
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316 (setq default-directory (file-name-directory path))
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317 (or (bolp) (newline))
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318 (insert "Current directory is " default-directory "\n")
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319 (apply 'make-comint
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320 (concat "gdb-" file)
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321 (substitute-in-file-name gdb-command-name)
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322 nil
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323 "-fullname"
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324 "-cd" default-directory
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325 file
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326 (and corefile (list corefile)))
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327 (set-process-filter (get-buffer-process (current-buffer)) 'gdb-filter)
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328 (set-process-sentinel (get-buffer-process (current-buffer)) 'gdb-sentinel)
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329 ;; XEmacs change: turn on gdb mode after setting up the proc filters
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330 ;; for the benefit of shell-font.el
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331 (gdb-mode)
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332 (gdb-set-buffer)))
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333
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334 ;;;####autoload
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335 (defun gdb-with-core (file corefile)
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336 "Debug a program using a corefile."
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337 (interactive "fProgram to debug: \nfCore file to use: ")
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338 (gdb file corefile))
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339
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340 (defun gdb-set-buffer ()
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341 (cond ((eq major-mode 'gdb-mode)
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342 (setq current-gdb-buffer (current-buffer))
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343 (if (featurep 'eos-toolbar)
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344 (set-specifier default-toolbar (cons (current-buffer)
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345 gdb-toolbar))))))
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346
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347
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348 ;; This function is responsible for inserting output from GDB
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349 ;; into the buffer.
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350 ;; Aside from inserting the text, it notices and deletes
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351 ;; each filename-and-line-number;
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352 ;; that GDB prints to identify the selected frame.
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353 ;; It records the filename and line number, and maybe displays that file.
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354 (defun gdb-filter (proc string)
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355 (let ((inhibit-quit t))
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356 (save-current-buffer
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357 (set-buffer (process-buffer proc))
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358 (if gdb-filter-accumulator
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359 (gdb-filter-accumulate-marker
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360 proc (concat gdb-filter-accumulator string))
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361 (gdb-filter-scan-input proc string)))))
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362
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363 (defun gdb-filter-accumulate-marker (proc string)
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364 (setq gdb-filter-accumulator nil)
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365 (if (> (length string) 1)
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366 (if (= (aref string 1) ?\032)
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367 (let ((end (string-match "\n" string)))
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368 (if end
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369 (progn
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370 (let* ((first-colon (string-match ":" string 2))
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371 (second-colon
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372 (string-match ":" string (1+ first-colon))))
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373 (setq gdb-last-frame
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374 (cons (substring string 2 first-colon)
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375 (string-to-int
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376 (substring string (1+ first-colon)
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377 second-colon)))))
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378 (setq gdb-last-frame-displayed-p nil)
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379 (gdb-filter-scan-input proc
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380 (substring string (1+ end))))
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381 (setq gdb-filter-accumulator string)))
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|
382 (gdb-filter-insert proc "\032")
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383 (gdb-filter-scan-input proc (substring string 1)))
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384 (setq gdb-filter-accumulator string)))
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385
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386 (defun gdb-filter-scan-input (proc string)
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387 (if (equal string "")
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388 (setq gdb-filter-accumulator nil)
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389 (let ((start (string-match "\032" string)))
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390 (if start
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391 (progn (gdb-filter-insert proc (substring string 0 start))
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392 (gdb-filter-accumulate-marker proc
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393 (substring string start)))
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394 (gdb-filter-insert proc string)))))
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395
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396 (defun gdb-filter-insert (proc string)
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397 (let ((moving (= (point) (process-mark proc)))
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398 (output-after-point (< (point) (process-mark proc))))
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399 (save-excursion
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400 ;; Insert the text, moving the process-marker.
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401 (goto-char (process-mark proc))
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402 (insert-before-markers string)
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403 (set-marker (process-mark proc) (point))
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404 (gdb-maybe-delete-prompt)
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405 ;; Check for a filename-and-line number.
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406 (gdb-display-frame
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407 ;; Don't display the specified file
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408 ;; unless (1) point is at or after the position where output appears
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409 ;; and (2) this buffer is on the screen.
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410 (or output-after-point
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411 (not (get-buffer-window (current-buffer))))
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412 ;; Display a file only when a new filename-and-line-number appears.
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413 t))
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414 (if moving (goto-char (process-mark proc))))
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415
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416 (let (s)
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417 (if (and (should-use-dialog-box-p)
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418 (setq s (or (string-match " (y or n) *\\'" string)
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419 (string-match " (yes or no) *\\'" string))))
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420 (gdb-mouse-prompt-hack (substring string 0 s) (current-buffer))))
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421 )
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|
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422
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|
423 (defun gdb-mouse-prompt-hack (prompt buffer)
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424 (popup-dialog-box
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425 (list prompt
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426 (vector "Yes" (list 'gdb-mouse-prompt-hack-answer 't buffer) t)
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427 (vector "No" (list 'gdb-mouse-prompt-hack-answer 'nil buffer) t)
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428 nil
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|
429 (vector "Cancel" (list 'gdb-mouse-prompt-hack-answer 'nil buffer) t)
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|
|
430 )))
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|
|
431
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|
|
432 (defun gdb-mouse-prompt-hack-answer (answer buffer)
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433 (let ((b (current-buffer)))
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|
434 (unwind-protect
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|
435 (progn
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436 (set-buffer buffer)
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|
437 (goto-char (process-mark (get-buffer-process buffer)))
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|
|
438 (delete-region (point) (point-max))
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|
|
439 (insert (if answer "yes" "no"))
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|
|
440 (comint-send-input))
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|
|
441 (set-buffer b))))
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|
|
442
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|
|
443 (defun gdb-sentinel (proc msg)
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|
444 (cond ((null (buffer-name (process-buffer proc)))
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|
|
445 ;; buffer killed
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|
|
446 ;; Stop displaying an arrow in a source file.
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|
447 ;(setq overlay-arrow-position nil) -- done by kill-buffer-hook
|
|
|
448 (set-process-buffer proc nil))
|
|
|
449 ((memq (process-status proc) '(signal exit))
|
|
|
450 ;; Stop displaying an arrow in a source file.
|
|
|
451 (gdb-delete-arrow-extent)
|
|
|
452 ;; Fix the mode line.
|
|
|
453 (setq modeline-process
|
|
|
454 (concat ": gdb " (symbol-name (process-status proc))))
|
|
|
455 (let* ((obuf (current-buffer)))
|
|
|
456 ;; save-excursion isn't the right thing if
|
|
|
457 ;; process-buffer is current-buffer
|
|
|
458 (unwind-protect
|
|
|
459 (progn
|
|
|
460 ;; Write something in *compilation* and hack its mode line,
|
|
|
461 (set-buffer (process-buffer proc))
|
|
|
462 ;; Force mode line redisplay soon
|
|
|
463 (set-buffer-modified-p (buffer-modified-p))
|
|
|
464 (if (eobp)
|
|
|
465 (insert ?\n mode-name " " msg)
|
|
|
466 (save-excursion
|
|
|
467 (goto-char (point-max))
|
|
|
468 (insert ?\n mode-name " " msg)))
|
|
|
469 ;; If buffer and mode line will show that the process
|
|
|
470 ;; is dead, we can delete it now. Otherwise it
|
|
|
471 ;; will stay around until M-x list-processes.
|
|
|
472 (delete-process proc))
|
|
|
473 ;; Restore old buffer, but don't restore old point
|
|
|
474 ;; if obuf is the gdb buffer.
|
|
|
475 (set-buffer obuf))))))
|
|
|
476
|
|
|
477
|
|
|
478 (defun gdb-refresh (&optional arg)
|
|
|
479 "Fix up a possibly garbled display, and redraw the arrow."
|
|
|
480 (interactive "P")
|
|
|
481 (recenter arg)
|
|
|
482 (gdb-display-frame))
|
|
|
483
|
|
|
484 (defun gdb-display-frame (&optional nodisplay noauto)
|
|
|
485 "Find, obey and delete the last filename-and-line marker from GDB.
|
|
|
486 The marker looks like \\032\\032FILENAME:LINE:CHARPOS\\n.
|
|
|
487 Obeying it means displaying in another window the specified file and line."
|
|
|
488 (interactive)
|
|
|
489 (gdb-set-buffer)
|
|
|
490 (and gdb-last-frame (not nodisplay)
|
|
|
491 gdb-display-mode
|
|
|
492 (or (not gdb-last-frame-displayed-p) (not noauto))
|
|
|
493 (progn (gdb-display-line (car gdb-last-frame) (cdr gdb-last-frame))
|
|
|
494 (setq gdb-last-frame-displayed-p t))))
|
|
|
495
|
|
|
496 ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen
|
|
|
497 ;; and that its line LINE is visible.
|
|
|
498 ;; Put the overlay-arrow on the line LINE in that buffer.
|
|
|
499
|
|
|
500 (defun gdb-display-line (true-file line &optional select-method)
|
|
|
501 ;; FILE to display
|
|
|
502 ;; LINE number to highlight and make visible
|
|
|
503 ;; SELECT-METHOD 'source, 'debugger, or 'none. (default is 'debugger)
|
|
|
504 (and (null select-method) (setq select-method 'debugger))
|
|
|
505 (let* ((pre-display-buffer-function nil) ; screw it, put it all in one screen
|
|
|
506 (pop-up-windows t)
|
|
|
507 (source-buffer (find-file-noselect true-file))
|
|
|
508 (source-window (display-buffer source-buffer))
|
|
|
509 (debugger-window (get-buffer-window current-gdb-buffer))
|
|
|
510 (extent gdb-arrow-extent)
|
|
|
511 pos)
|
|
|
512 ;; XEmacs change: make sure we find a window displaying the source file
|
|
|
513 ;; even if we are already sitting in it when a breakpoint is hit.
|
|
|
514 ;; Otherwise the t argument to display-buffer will prevent it from being
|
|
|
515 ;; displayed.
|
|
|
516 (save-excursion
|
|
|
517 (cond ((eq select-method 'debugger)
|
|
|
518 ;; might not already be displayed
|
|
|
519 (setq debugger-window (display-buffer current-gdb-buffer))
|
|
|
520 (select-window debugger-window))
|
|
|
521 ((eq select-method 'source)
|
|
|
522 (select-window source-window))))
|
|
|
523 (and extent
|
|
|
524 (not (eq (extent-object extent) source-buffer))
|
|
|
525 (setq extent (delete-extent extent)))
|
|
|
526 (or extent
|
|
|
527 (progn
|
|
|
528 (setq extent (make-extent 1 1 source-buffer))
|
|
|
529 (set-extent-face extent 'gdb-arrow-face)
|
|
|
530 (set-extent-begin-glyph extent gdb-arrow-glyph)
|
|
|
531 (set-extent-begin-glyph-layout extent 'whitespace)
|
|
|
532 (set-extent-priority extent 2000)
|
|
|
533 (setq gdb-arrow-extent extent)))
|
|
|
534 (save-current-buffer
|
|
|
535 (set-buffer source-buffer)
|
|
|
536 (save-restriction
|
|
|
537 (widen)
|
|
|
538 (goto-line line)
|
|
|
539 (set-window-point source-window (point))
|
|
|
540 (setq pos (point))
|
|
|
541 (end-of-line)
|
|
|
542 (set-extent-endpoints extent pos (point))
|
|
|
543 (run-hook-with-args 'gdb-arrow-extent-hooks extent))
|
|
|
544 (cond ((or (< pos (point-min)) (> pos (point-max)))
|
|
|
545 (widen)
|
|
|
546 (goto-char pos))))
|
|
|
547 ;; Added by Stig. It caused lots of problems for several users
|
|
|
548 ;; and since its purpose is unclear it is getting commented out.
|
|
|
549 ;;(and debugger-window
|
|
|
550 ;; (set-window-point debugger-window pos))
|
|
|
551 ))
|
|
|
552
|
|
|
553 (defun gdb-call (command)
|
|
|
554 "Invoke gdb COMMAND displaying source in other window."
|
|
|
555 (interactive)
|
|
|
556 (goto-char (point-max))
|
|
|
557 ;; Record info on the last prompt in the buffer and its position.
|
|
|
558 ;; This is used in gdb-maybe-delete-prompt
|
|
|
559 ;; to prevent multiple prompts from accumulating.
|
|
|
560 (save-excursion
|
|
|
561 (goto-char (process-mark (get-buffer-process current-gdb-buffer)))
|
|
|
562 (let ((pt (point)))
|
|
|
563 (beginning-of-line)
|
|
|
564 (setq gdb-delete-prompt-marker
|
|
|
565 (if (= (point) pt)
|
|
|
566 nil
|
|
|
567 (list (point-marker) (- pt (point))
|
|
|
568 (buffer-substring (point) pt))))))
|
|
|
569 (gdb-set-buffer)
|
|
|
570 (process-send-string (get-buffer-process current-gdb-buffer)
|
|
|
571 (concat command "\n")))
|
|
|
572
|
|
|
573 (defun gdb-maybe-delete-prompt ()
|
|
|
574 (if gdb-delete-prompt-marker
|
|
|
575 ;; Get the string that we used as the prompt before.
|
|
|
576 (let ((prompt (nth 2 gdb-delete-prompt-marker))
|
|
|
577 (length (nth 1 gdb-delete-prompt-marker)))
|
|
|
578 ;; Position after it.
|
|
|
579 (goto-char (+ (car gdb-delete-prompt-marker) length))
|
|
|
580 ;; Delete any duplicates of it which follow right after.
|
|
|
581 (while (and (<= (+ (point) length) (point-max))
|
|
|
582 (string= prompt
|
|
|
583 (buffer-substring (point) (+ (point) length))))
|
|
|
584 (delete-region (point) (+ (point) length)))
|
|
|
585 ;; If that didn't take us to where output is arriving,
|
|
|
586 ;; we have encountered something other than a prompt,
|
|
|
587 ;; so stop trying to delete any more prompts.
|
|
|
588 (if (not (= (point)
|
|
|
589 (process-mark (get-buffer-process current-gdb-buffer))))
|
|
|
590 (progn
|
|
|
591 (set-marker (car gdb-delete-prompt-marker) nil)
|
|
|
592 (setq gdb-delete-prompt-marker nil))))))
|
|
|
593
|
|
|
594 (defun gdb-break (temp)
|
|
|
595 "Set GDB breakpoint at this source line. With ARG set temporary breakpoint."
|
|
|
596 (interactive "P")
|
|
|
597 (let* ((file-name (file-name-nondirectory buffer-file-name))
|
|
|
598 (line (save-restriction
|
|
|
599 (widen)
|
|
|
600 (beginning-of-line)
|
|
|
601 (1+ (count-lines 1 (point)))))
|
|
|
602 (cmd (concat (if temp "tbreak " "break ") file-name ":"
|
|
|
603 (int-to-string line))))
|
|
|
604 (set-buffer current-gdb-buffer)
|
|
|
605 (goto-char (process-mark (get-buffer-process current-gdb-buffer)))
|
|
|
606 (delete-region (point) (point-max))
|
|
|
607 (insert cmd)
|
|
|
608 (comint-send-input)
|
|
|
609 ;;(process-send-string (get-buffer-process current-gdb-buffer) cmd)
|
|
|
610 ))
|
|
|
611
|
|
|
612 (defun gdb-clear ()
|
|
|
613 "Set GDB breakpoint at this source line."
|
|
|
614 (interactive)
|
|
|
615 (let* ((file-name (file-name-nondirectory buffer-file-name))
|
|
|
616 (line (save-restriction
|
|
|
617 (widen)
|
|
|
618 (beginning-of-line)
|
|
|
619 (1+ (count-lines 1 (point)))))
|
|
|
620 (cmd (concat "clear " file-name ":"
|
|
|
621 (int-to-string line))))
|
|
|
622 (set-buffer current-gdb-buffer)
|
|
|
623 (goto-char (process-mark (get-buffer-process current-gdb-buffer)))
|
|
|
624 (delete-region (point) (point-max))
|
|
|
625 (insert cmd)
|
|
|
626 (comint-send-input)
|
|
|
627 ;;(process-send-string (get-buffer-process current-gdb-buffer) cmd)
|
|
|
628 ))
|
|
|
629
|
|
|
630 (defun gdb-read-address()
|
|
|
631 "Return a string containing the core-address found in the buffer at point."
|
|
|
632 (save-excursion
|
|
|
633 (let ((pt (point)) found begin)
|
|
|
634 (setq found (if (search-backward "0x" (- pt 7) t)(point)))
|
|
|
635 (cond (found (forward-char 2)
|
|
|
636 (buffer-substring found
|
|
|
637 (progn (re-search-forward "[^0-9a-f]")
|
|
|
638 (forward-char -1)
|
|
|
639 (point))))
|
|
|
640 (t (setq begin (progn (re-search-backward "[^0-9]") (forward-char 1)
|
|
|
641 (point)))
|
|
|
642 (forward-char 1)
|
|
|
643 (re-search-forward "[^0-9]")
|
|
|
644 (forward-char -1)
|
|
|
645 (buffer-substring begin (point)))))))
|
|
|
646
|
|
|
647
|
|
|
648 (defvar gdb-commands nil
|
|
|
649 "List of strings or functions used by send-gdb-command.
|
|
|
650 It is for customization by you.")
|
|
|
651
|
|
|
652 (defun send-gdb-command (arg)
|
|
|
653
|
|
|
654 "This command reads the number where the cursor is positioned. It
|
|
|
655 then inserts this ADDR at the end of the gdb buffer. A numeric arg
|
|
|
656 selects the ARG'th member COMMAND of the list gdb-print-command. If
|
|
|
657 COMMAND is a string, (format COMMAND ADDR) is inserted, otherwise
|
|
|
658 (funcall COMMAND ADDR) is inserted. eg. \"p (rtx)%s->fld[0].rtint\"
|
|
|
659 is a possible string to be a member of gdb-commands. "
|
|
|
660
|
|
|
661
|
|
|
662 (interactive "P")
|
|
|
663 (let (comm addr)
|
|
|
664 (if arg (setq comm (nth arg gdb-commands)))
|
|
|
665 (setq addr (gdb-read-address))
|
|
|
666 (if (eq (current-buffer) current-gdb-buffer)
|
|
|
667 (set-mark (point)))
|
|
|
668 (cond (comm
|
|
|
669 (setq comm
|
|
|
670 (if (stringp comm) (format comm addr) (funcall comm addr))))
|
|
|
671 (t (setq comm addr)))
|
|
|
672 (switch-to-buffer current-gdb-buffer)
|
|
|
673 (goto-char (point-max))
|
|
|
674 (insert comm)))
|
|
|
675
|
|
98
|
676 (fset 'gdb-control-c-subjob 'comint-interrupt-subjob)
|
|
|
677
|
|
|
678 ;(defun gdb-control-c-subjob ()
|
|
|
679 ; "Send a Control-C to the subprocess."
|
|
|
680 ; (interactive)
|
|
|
681 ; (process-send-string (get-buffer-process (current-buffer))
|
|
|
682 ; "\C-c"))
|
|
0
|
683
|
|
|
684 (defun gdb-toolbar-break ()
|
|
|
685 (interactive)
|
|
|
686 (save-excursion
|
|
|
687 (message (car gdb-last-frame))
|
|
|
688 (set-buffer (find-file-noselect (car gdb-last-frame)))
|
|
|
689 (gdb-break nil)))
|
|
|
690
|
|
|
691 (defun gdb-toolbar-clear ()
|
|
|
692 (interactive)
|
|
|
693 (save-excursion
|
|
|
694 (message (car gdb-last-frame))
|
|
|
695 (set-buffer (find-file-noselect (car gdb-last-frame)))
|
|
|
696 (gdb-clear)))
|
|
|
697
|
|
|
698 (provide 'gdb)
|
|
72
|
699
|
|
|
700 ;;; gdb.el ends here
|
