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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
author jlarmour
date Tue, 28 Mar 2000 14:10:45 +0000
parents
children 42f843b391aa
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435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1 # ====================================================================
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2 #
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3 # debug.cdl
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4 #
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5 # Infrastructure debugging configuration data
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6 #
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7 # ====================================================================
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8 #####COPYRIGHTBEGIN####
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9 #
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10 # -------------------------------------------
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11 # The contents of this file are subject to the Red Hat eCos Public License
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12 # Version 1.1 (the "License"); you may not use this file except in
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13 # compliance with the License. You may obtain a copy of the License at
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14 # http://www.redhat.com/
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15 #
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16 # Software distributed under the License is distributed on an "AS IS"
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17 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 # License for the specific language governing rights and limitations under
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19 # the License.
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20 #
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21 # The Original Code is eCos - Embedded Configurable Operating System,
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22 # released September 30, 1998.
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23 #
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24 # The Initial Developer of the Original Code is Red Hat.
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25 # Portions created by Red Hat are
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26 # Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 # All Rights Reserved.
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28 # -------------------------------------------
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29 #
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30 #####COPYRIGHTEND####
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31 # ====================================================================
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32 ######DESCRIPTIONBEGIN####
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33 #
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34 # Author(s): jskov
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35 # Original data: bartv,hmt
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36 # Contributors:
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37 # Date: 1999-07-02
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38 #
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39 #####DESCRIPTIONEND####
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40 #
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41 # ====================================================================
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42
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43 # If global debugging is enabled then by default all assertions
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44 # are enabled. Tracing is not enabled by default because it
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45 # involves excessive overheads, for example on some targets
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46 # it requires sending a string down a serial line for every
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47 # function call. Both assertions and tracing are controlled
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48 # by the following lines.
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49
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50 cdl_component CYGDBG_USE_ASSERTS {
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51 display "Use asserts"
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52 default_value 1
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53 description "
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54 If this option is defined, asserts in the code are tested.
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55 Assert functions (CYG_ASSERT()) are defined in
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56 'include/cyg/infra/cyg_ass.h' within the 'install' tree.
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57 If it is not defined, these result in no additional
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58 object code and no checking of the asserted conditions."
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59
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60 script assert.cdl
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61 }
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62
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63 cdl_component CYGDBG_USE_TRACING {
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64 display "Use tracing"
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65 default_value 0
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66 description "
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67 If this option is defined, tracing operations
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68 result in output or logging, depending on other options.
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69 This may have adverse effects on performance, if the time
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70 taken to output message overwhelms the available CPU
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71 power or output bandwidth.
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72 Trace functions (CYG_TRACE()) are defined in
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73 'include/cyg/infra/cyg_trac.h' within the 'install' tree.
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74 If it is not defined, these result in no additional
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75 object code and no trace information."
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76
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77
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78 # The eCos system uses two types of tracing mechanisms. The most common
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79 # type traces events, for example an event could be logged whenever
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80 # an interrupt occurs or whenever a context switch takes place. The
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81 # second type of tracing mechanism records every function entry and
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82 # exit. It is possible to disable this second type of tracing while
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83 # leaving the main tracing facility enabled.
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84 cdl_option CYGDBG_INFRA_DEBUG_FUNCTION_REPORTS {
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85 display "Trace function reports"
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86 default_value 1
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87 description "
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88 This option allows individual control of
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89 function entry/exit tracing, independent of
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90 more general tracing output.
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91 This may be useful to remove clutter from a
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92 trace log."
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93 }
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94
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95 cdl_option CYGDBG_INFRA_DEBUG_TRACE_MESSAGE {
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96 display "Use trace text"
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97 default_value 1
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98 description "
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99 All trace calls within eCos contain a text message
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100 which should give some information about the circumstances.
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101 These text messages will end up being embedded in the
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102 application image and hence there is a significant penalty
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103 in terms of image size.
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104 It is possible to suppress the use of these messages by
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105 disabling this option.
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106 This results in smaller code size, but there is less
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107 human-readable information available in the trace output,
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108 possibly only filenames and line numbers."
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109 }
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110 }
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111
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112 # FIXME: The below options should be mutually exclusive.
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113 cdl_option CYGDBG_INFRA_DEBUG_TRACE_ASSERT_NULL {
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114 display "Null output"
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115 # type radio
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116 default_value 0
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117 description "
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118 A null output module which is useful when
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119 debugging interactively; the output routines
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120 can be breakpointed rather than have them actually
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121 'print' something."
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122 }
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123 cdl_option CYGDBG_INFRA_DEBUG_TRACE_ASSERT_SIMPLE {
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124 display "Simple output"
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125 # type radio
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126 default_value 0
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127 description "
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128 An output module which produces simple output
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129 from tracing and assertion events."
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130 }
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131 cdl_option CYGDBG_INFRA_DEBUG_TRACE_ASSERT_FANCY {
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132 display "Fancy output"
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133 # type radio
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134 default_value 0
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135 description "
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136 An output module which produces fancy output
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137 from tracing and assertion events."
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138 }
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139 cdl_component CYGDBG_INFRA_DEBUG_TRACE_ASSERT_BUFFER {
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140 display "Buffered tracing"
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141 # type radio
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142 default_value 1
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143 description "
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144 An output module which buffers output
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145 from tracing and assertion events. The stored
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146 messages are output when an assert fires, or
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147 CYG_TRACE_PRINT() (defined in <cyg/infra/cyg_trac.h>)
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148 is called.
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149 Of course, there will only be stored messages
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150 if tracing per se (CYGDBG_USE_TRACING)
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151 is enabled above."
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152
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153 cdl_option CYGDBG_INFRA_DEBUG_TRACE_BUFFER_SIZE {
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154 display "Trace buffer size"
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155 flavor data
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156 active_if CYGDBG_USE_TRACING
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157 default_value 32
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158 legal_values 5 to 65535
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159 description "
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160 The size of the trace buffer. This counts the number
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161 of trace records stored. When the buffer fills it
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162 either wraps, stops recording, or generates output."
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163 }
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164 # FIXME: The below options should be mutually exclusive.
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165 cdl_option CYGDBG_INFRA_DEBUG_TRACE_BUFFER_WRAP {
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166 display "Wrap trace buffer when full"
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167 active_if CYGDBG_USE_TRACING
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168 default_value 1
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169 # type radio
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170 description "
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171 When the trace buffer has filled with records it
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172 starts again at the beginning. Hence only the last
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173 CYGDBG_INFRA_DEBUG_TRACE_BUFFER_SIZE messages will
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174 be recorded."
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175 }
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176 cdl_option CYGDBG_INFRA_DEBUG_TRACE_BUFFER_HALT {
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177 display "Halt trace buffer when full"
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178 active_if CYGDBG_USE_TRACING
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179 default_value 0
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180 # type radio
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181 description "
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182 When the trace buffer has filled with records it
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183 stops recording. Hence only the first
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184 CYGDBG_INFRA_DEBUG_TRACE_BUFFER_SIZE messages will
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185 be recorded."
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186 }
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187 cdl_option CYGDBG_INFRA_DEBUG_TRACE_BUFFER_PRINT {
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188 display "Print trace buffer when full"
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189 active_if CYGDBG_USE_TRACING
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190 default_value 0
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191 # type radio
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192 description "
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193 When the trace buffer has filled with records it
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194 prints the contents of the buffer. The buffer is then
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195 emptied and the system continues."
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196 }
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197 cdl_option CYGDBG_INFRA_DEBUG_TRACE_BUFFER_PRINT_ON_ASSERT {
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198 display "Print trace buffer on assert fail"
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199 active_if CYGDBG_USE_TRACING
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200 default_value 1
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201 description "
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202 When an assertion fails the trace buffer will be
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203 printed to the default diagnostic device."
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204 }
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205 }
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206
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207 cdl_option CYGDBG_INFRA_DEBUG_FUNCTION_PSEUDOMACRO {
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208 display "Use function names"
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209 default_value 1
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210 description "
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211 All trace and assert calls within eCos contain a
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212 reference to the builtin macro '__PRETTY_FUNCTION__',
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213 which evaluates to a string containing
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214 the name of the current function.
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215 This is useful when reading a trace log.
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216 It is possible to suppress the use of the function name
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217 by disabling this option.
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218 This results in smaller code size, but there is less
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219 human-readable information available in the trace output,
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220 possibly only filenames and line numbers."
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221 }