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vxworks相关论文

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<dd><p class="Body"><a name="104994"> </a>You can override the default compiler flags for individual files by right-clicking on the file name in the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Files</font></b> view, selecting <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Properties</font></b> from the context menu, and specifying a new set of options in the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Build</font></b> page of the property sheet. Unchecking the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Use default build rule for this file</font></b> box allows you to edit the fields in this page (<a href="c-builder5.html#101121">Figure&nbsp;4-38</a>).<div class="frame">
<h4 class="EntityTitle"><a name="101121"><font face="Helvetica, sans-serif" size="-1" class="sans">Figure 4-38:&nbsp;&nbsp;Compiler Options for Individual Files</font></a></h4>

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<dd><p class="Body"><a name="101137"> </a>If the file should be used only when building a ROM-based image, check the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Build for ROM images only</font></b> box. See <a href="c-builder3.html#92122"><i class="title">4.3.4&nbsp;Selecting the VxWorks Image Type</i></a>. </p>
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<h4 class="H4"><i><a name="91958">Assembler Options</a></i></h4>
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<dd><p class="Body"><a name="101154"> </a>Select the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">assembler</font></b> tab of the build specification property sheet to view assembler options. You can edit the options displayed in the text box (<a href="c-builder5.html#101157">Figure&nbsp;4-39</a>). <div class="frame">
<h4 class="EntityTitle"><a name="101157"><font face="Helvetica, sans-serif" size="-1" class="sans">Figure 4-39:&nbsp;&nbsp;Assembler Options</font></a></h4>

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<h4 class="H4"><i><a name="103358">Link Order Options</a></i></h4>
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<dd><p class="Body"><a name="103359"> </a>Select the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Link Order</font></b> tab of the build specification property sheet to view module link order (<a href="c-builder5.html#103366">Figure&nbsp;4-40</a>). You can change the link order using the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Down</font></b> and <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Up</font></b> buttons to ensure that static C++ constructors and destructors are invoked in the correct order. <div class="frame">
<h4 class="EntityTitle"><a name="103366"><font face="Helvetica, sans-serif" size="-1" class="sans">Figure 4-40:&nbsp;&nbsp;Link Order Options</font></a></h4>

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<h4 class="H4"><i><a name="101163">Linker Options</a></i></h4>
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<dd><p class="Body"><a name="98438"> </a>Select the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">linker</font></b> tab of the build specification property sheet to view linker options. You can edit the options displayed in the text box (<a href="c-builder5.html#91970">Figure&nbsp;4-41</a>). <div class="frame">
<h4 class="EntityTitle"><a name="91970"><font face="Helvetica, sans-serif" size="-1" class="sans">Figure 4-41:&nbsp;&nbsp;Linker Options</font></a></h4>

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<dd><p class="Body"><a name="102868"> </a>To link an object or library (archive) file with a project, list the full path to the file. The recommended way to link library (archive) files is to add the libraries to the list defined by the <b class="symbol_UC">LIBS</b> macro (see <a href="c-builder5.html#93401"><i class="title">Makefile Macros</i></a>).</p>
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<hr><div class="CalloutCell"><a name="102873"><b class="symbol_UC"><font face="Helvetica, sans-serif" size="-1" class="sans">WARNING:  </font></b></a>You cannot link another project object file (<i class="textVariable">projectName</i><b class="file">.out</b>) with the project you are building. You must compile the other project as a library (see <a href="c-builder2.html#97000"><i class="title">Build Specifications</i></a>), and then link it with the current project.</div>
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<h4 class="H3"><i><a name="91976">4.5.2  &nbsp;&nbsp;Creating New Build Specifications</a></i></h4>
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<dd><p class="Body"><a name="97750"> </a>You can create new build specifications for a project with the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Add New Build Specification </font></b>window, which is displayed with the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">New Build</font></b> option on the context menu. For example, one build specification can be created that includes debug information, and another that does not; specifications can be created for different image types, optimization levels, and so on. You can create a new build specification by copying from an existing specification, or by creating it as a default specification for a given toolchain(<a href="c-builder5.html#91980">Figure&nbsp;4-42</a>). <div class="frame">
<h4 class="EntityTitle"><a name="91980"><font face="Helvetica, sans-serif" size="-1" class="sans">Figure 4-42:&nbsp;&nbsp;New Build Specification</font></a></h4>

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<dd><p class="Body"><a name="93420"> </a>Once you have created a new build specification, use the build specification property sheet to define it (see <a href="c-builder5.html#97696"><i class="title">4.5.1&nbsp;Changing a Build Specification</i></a>).</p>
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<hr><div class="CalloutCell"><a name="102527"><b class="symbol_UC"><font face="Helvetica, sans-serif" size="-1" class="sans">NOTE:  </font></b></a>For downloadable applications, it is often useful to create a build specification for the target simulator, and another for the real target hardware. For bootable applications and custom VxWorks images, you are usually restricted to the toolchains that support the CPU required by the BSP. But you can still create different build specifications (for example, with different optimization levels or rules).</div>
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<h4 class="H3"><i><a name="91986">4.5.3  &nbsp;&nbsp;Selecting a Specification for the Current Build</a></i></h4>
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<dd><p class="Body"><a name="92310"> </a>When you want to build your project, select the build specification from the <b class="guiLabel"><font face="Helvetica, sans-serif" size="-1" class="sans">Build Spec </font></b>drop-down list (<a href="c-builder5.html#91990">Figure&nbsp;4-43</a>). <div class="frame">
<h4 class="EntityTitle"><a name="91990"><font face="Helvetica, sans-serif" size="-1" class="sans">Figure 4-43:&nbsp;&nbsp;Build Specification Selection</font></a></h4>

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<dd><p class="Body"><a name="94725"> </a>Binaries produced by a build are created in the <i class="textVariable">buildName</i> subdirectory of your project directory. </p>
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