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<h2>
<a name="1208962"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">9.7 Order of linking</font>
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<p>
<a name="1208963"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">This section explains the order in which <strong>st20cc</strong> links object files and libraries. In particular it explains how the order that library files are presented on the <strong>st20cc</strong> command line can affect what is linked or even whether the linked unit is created successfully.</font>
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<a name="1208964"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The following terms are used.</font>
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<a name="1208965"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><b>module</b></font>
<br>
<dl><dl> <dl>
<dt> <a name="1208966"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">This is a single object file generated by the compiler; may contain multiple sections. Usually synonymous with a <font size=2 face=Courier><strong>.tco</strong></font> file.</font>
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<a name="1208967"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><b>symbol</b></font>
<br>
<dl><dl> <dl>
<dt> <a name="1208968"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">This is a generic term for any object (data item or function).</font>
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<h3>
<a name="1208969"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">9.7.1 Rules for linking</font>
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<p>
<a name="1208970"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><strong>st20cc</strong> is the front end to <strong>st20icc</strong> (the compiler) and <strong>st20link</strong> (the linker) and simply calls these tools with the appropriate command lines. There are thus two levels of command line parsing for <strong>st20cc</strong> to perform.</font>
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<p>
<a name="1208971"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><strong>st20cc</strong> applies the following general rules when linking.</font>
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<ul>
<p> <font size=2 face="Verdana, Arial, Helvetica, sans-serif"><li ><a name="1208972"> </a>Object files (<font size=2 face=Courier><strong>.tco</strong></font>) files and source files are included unconditionally.</font></p>
<p> <font size=2 face="Verdana, Arial, Helvetica, sans-serif"><li ><a name="1208973"> </a>If any part of a module in a library is needed, all of that module is linked.</font></p>
<p> <font size=2 face="Verdana, Arial, Helvetica, sans-serif"><li ><a name="1208976"> </a>The libraries are searched in the order determined by <strong>st20cc</strong> (see <a href="st20cc8.htm#1208983"><font color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>Section⌨️ 快捷键说明
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