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Add operandsizewarning pragma Add operandsizewarning pragma that will raise warnings for certain operands if the operand size could be smaller. (Long branch used instead of short branch, for instance.)
author William Astle <lost@l-w.ca>
date Fri, 16 Feb 2018 22:53:46 -0700
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1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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2 <HTML
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3 ><HEAD
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4 ><TITLE
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5 >LWLINK</TITLE
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6 ><META
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7 NAME="GENERATOR"
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8 CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
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9 REL="HOME"
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10 TITLE="LW Tool Chain"
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11 HREF="index.html"><LINK
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12 REL="PREVIOUS"
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13 TITLE="Cycle Counts"
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14 HREF="x805.html"><LINK
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15 REL="NEXT"
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16 TITLE="Linker Operation"
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17 HREF="x911.html"></HEAD
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18 ><BODY
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19 CLASS="CHAPTER"
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20 BGCOLOR="#FFFFFF"
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21 TEXT="#000000"
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22 LINK="#0000FF"
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23 VLINK="#840084"
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24 ALINK="#0000FF"
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25 ><DIV
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26 CLASS="NAVHEADER"
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27 ><TABLE
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28 SUMMARY="Header navigation table"
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29 WIDTH="100%"
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30 BORDER="0"
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31 CELLPADDING="0"
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32 CELLSPACING="0"
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33 ><TR
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34 ><TH
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35 COLSPAN="3"
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36 ALIGN="center"
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37 >LW Tool Chain</TH
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38 ></TR
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39 ><TR
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40 ><TD
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41 WIDTH="10%"
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42 ALIGN="left"
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43 VALIGN="bottom"
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44 ><A
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45 HREF="x805.html"
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46 ACCESSKEY="P"
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47 >Prev</A
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48 ></TD
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49 ><TD
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50 WIDTH="80%"
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51 ALIGN="center"
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52 VALIGN="bottom"
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53 ></TD
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54 ><TD
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55 WIDTH="10%"
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56 ALIGN="right"
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57 VALIGN="bottom"
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58 ><A
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59 HREF="x911.html"
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60 ACCESSKEY="N"
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61 >Next</A
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62 ></TD
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63 ></TR
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64 ></TABLE
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65 ><HR
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66 ALIGN="LEFT"
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67 WIDTH="100%"></DIV
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68 ><DIV
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69 CLASS="CHAPTER"
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70 ><H1
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71 ><A
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72 NAME="AEN811"
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73 ></A
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74 >Chapter 4. LWLINK</H1
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75 ><P
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76 >The LWTOOLS linker is called LWLINK. This chapter documents the various features
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77 of the linker.</P
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78 ><DIV
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79 CLASS="SECTION"
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80 ><H1
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81 CLASS="SECTION"
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82 ><A
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83 NAME="AEN814"
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84 >4.1. Command Line Options</A
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85 ></H1
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86 ><P
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87 >The binary for LWLINK is called "lwlink". Note that the binary is in lower
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88 case. lwlink takes the following command line arguments.</P
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89 ><P
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90 ></P
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91 ><DIV
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92 CLASS="VARIABLELIST"
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93 ><DL
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94 ><DT
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95 ><CODE
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96 CLASS="OPTION"
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97 >--decb</CODE
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98 >, <CODE
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99 CLASS="OPTION"
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100 >-b</CODE
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101 ></DT
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102 ><DD
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103 ><P
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104 >Selects the DECB output format target. This is equivalent to <CODE
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105 CLASS="OPTION"
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106 >--format=decb</CODE
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107 ></P
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108 ></DD
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109 ><DT
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110 ><CODE
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111 CLASS="OPTION"
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112 >--output=FILE</CODE
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113 >, <CODE
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114 CLASS="OPTION"
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115 >-o FILE</CODE
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116 ></DT
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117 ><DD
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118 ><P
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119 >This option specifies the name of the output file. If not specified, the
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120 default is <CODE
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121 CLASS="OPTION"
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122 >a.out</CODE
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123 >.</P
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124 ></DD
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125 ><DT
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126 ><CODE
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127 CLASS="OPTION"
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128 >--format=TYPE</CODE
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129 >, <CODE
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130 CLASS="OPTION"
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131 >-f TYPE</CODE
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132 ></DT
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133 ><DD
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134 ><P
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135 >This option specifies the output format. Valid values are <CODE
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136 CLASS="OPTION"
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137 >decb</CODE
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138 >
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139 and <CODE
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140 CLASS="OPTION"
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141 >raw</CODE
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142 ></P
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143 ></DD
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144 ><DT
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145 ><CODE
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146 CLASS="OPTION"
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147 >--raw</CODE
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148 >, <CODE
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149 CLASS="OPTION"
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150 >-r</CODE
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151 ></DT
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152 ><DD
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153 ><P
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154 >This option specifies the raw output format.
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155 It is equivalent to <CODE
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156 CLASS="OPTION"
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157 >--format=raw</CODE
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158 >
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159 and <CODE
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160 CLASS="OPTION"
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161 >-f raw</CODE
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162 ></P
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163 ></DD
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164 ><DT
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165 ><CODE
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166 CLASS="OPTION"
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167 >--script=FILE</CODE
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168 >, <CODE
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169 CLASS="OPTION"
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170 >-s</CODE
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171 ></DT
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172 ><DD
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173 ><P
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174 >This option allows specifying a linking script to override the linker's
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175 built in defaults.</P
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176 ></DD
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177 ><DT
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178 ><CODE
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179 CLASS="OPTION"
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180 >--section-base=SECT=BASE</CODE
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181 ></DT
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182 ><DD
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183 ><P
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184 >Cause section SECT to load at base address BASE. This will be prepended
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185 to the built-in link script. It is ignored if a link script is provided.</P
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186 ></DD
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187 ><DT
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188 ><CODE
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189 CLASS="OPTION"
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190 >--map=FILE</CODE
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191 >, <CODE
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192 CLASS="OPTION"
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193 >-m FILE</CODE
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194 ></DT
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195 ><DD
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196 ><P
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197 >This will output a description of the link result to FILE.</P
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198 ></DD
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199 ><DT
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200 ><CODE
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201 CLASS="OPTION"
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202 >--library=LIBSPEC</CODE
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203 >, <CODE
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204 CLASS="OPTION"
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205 >-l LIBSPEC</CODE
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206 ></DT
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207 ><DD
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208 ><P
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209 >Load a library using the library search path. If LIBSPEC is prefixed with a
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210 colon (":"), then LIBSPEC is the precise filename to be searched for in the
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211 library path. Otherwise, LIBSPEC will have "lib" prepended and ".a" appended.</P
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212 ></DD
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213 ><DT
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214 ><CODE
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215 CLASS="OPTION"
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216 >--library-path=DIR</CODE
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217 >, <CODE
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218 CLASS="OPTION"
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219 >-L DIR</CODE
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220 ></DT
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221 ><DD
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222 ><P
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223 >Add DIR to the library search path.</P
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224 ></DD
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225 ><DT
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226 ><CODE
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227 CLASS="OPTION"
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228 >--debug</CODE
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229 >, <CODE
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230 CLASS="OPTION"
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231 >-d</CODE
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232 ></DT
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233 ><DD
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234 ><P
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235 >This option increases the debugging level. It is only useful for LWTOOLS
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236 developers.</P
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237 ></DD
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238 ><DT
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239 ><CODE
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240 CLASS="OPTION"
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241 >--help</CODE
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242 >, <CODE
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243 CLASS="OPTION"
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244 >-?</CODE
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245 ></DT
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246 ><DD
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247 ><P
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248 >This provides a listing of command line options and a brief description
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249 of each.</P
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250 ></DD
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251 ><DT
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252 ><CODE
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253 CLASS="OPTION"
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254 >--usage</CODE
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255 ></DT
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256 ><DD
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257 ><P
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258 >This will display a usage summary
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259 of each command line option.</P
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260 ></DD
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261 ><DT
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262 ><CODE
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263 CLASS="OPTION"
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264 >--version</CODE
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265 >, <CODE
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266 CLASS="OPTION"
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267 >-V</CODE
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268 ></DT
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269 ><DD
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270 ><P
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271 >This will display the version of LWLINK.</P
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272 ></DD
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273 ></DL
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274 ></DIV
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275 ></DIV
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276 ></DIV
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277 ><DIV
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278 CLASS="NAVFOOTER"
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279 ><HR
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280 ALIGN="LEFT"
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281 WIDTH="100%"><TABLE
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282 SUMMARY="Footer navigation table"
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283 WIDTH="100%"
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284 BORDER="0"
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285 CELLPADDING="0"
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286 CELLSPACING="0"
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287 ><TR
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288 ><TD
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289 WIDTH="33%"
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290 ALIGN="left"
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291 VALIGN="top"
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292 ><A
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293 HREF="x805.html"
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294 ACCESSKEY="P"
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295 >Prev</A
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296 ></TD
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297 ><TD
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298 WIDTH="34%"
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299 ALIGN="center"
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300 VALIGN="top"
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301 ><A
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302 HREF="index.html"
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303 ACCESSKEY="H"
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304 >Home</A
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305 ></TD
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306 ><TD
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307 WIDTH="33%"
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308 ALIGN="right"
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309 VALIGN="top"
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310 ><A
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311 HREF="x911.html"
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312 ACCESSKEY="N"
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313 >Next</A
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314 ></TD
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315 ></TR
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316 ><TR
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317 ><TD
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318 WIDTH="33%"
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319 ALIGN="left"
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320 VALIGN="top"
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321 >Cycle Counts</TD
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322 ><TD
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323 WIDTH="34%"
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324 ALIGN="center"
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325 VALIGN="top"
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326 >&nbsp;</TD
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327 ><TD
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328 WIDTH="33%"
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329 ALIGN="right"
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330 VALIGN="top"
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331 >Linker Operation</TD
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332 ></TR
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333 ></TABLE
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334 ></DIV
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335 ></BODY
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336 ></HTML
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337 >