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<head><title>Building the C runtime system</title>
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<h3 class="sectionHead"><span class="titlemark">4.2 </span> <a
id="x18-620004.2"></a>Building the C runtime system</h3>
<!--l. 59--><p class="noindent" >The C runtime system contains some basic functionalities to run the generated models. The so called runtime
is common for all C projects. The requirements for several projects may differ depending on the functionality of
the model or the resources of the different platforms. Therefore the runtime is configurable in terms of
message queue size, frequency and memory alignment. The configuration file <span
class="ec-lmsso-10">etRuntimeConfig.h </span>is located in
<span
class="ec-lmsso-10">src/config</span>.
</p><!--l. 65--><p class="noindent" >After changing the configuration, the runtime must be built.
</p><!--l. 67--><p class="noindent" >Open the properties of the <span
class="ec-lmsso-10">org.eclipse.runtime.c </span>project and select <span
class="ec-lmsso-10">C/C++ Build->Settings->Tool Settings</span>
and select <span
class="ec-lmsso-10">Includes</span>.
</p><!--l. 70--><p class="noindent" ><img
src="images/032-SetupWorkspaceC08.png" alt="PIC"
/>
</p><!--l. 73--><p class="noindent" >Verify the include paths
</p>
<ul class="itemize1">
<li class="itemize"><span
class="ec-lmsso-10">src/config</span>
</li>
<li class="itemize"><span
class="ec-lmsso-10">src/common</span>
</li>
<li class="itemize"><span
class="ec-lmsso-10">src/platforms/generic</span></li></ul>
<!--l. 81--><p class="noindent" >Within the Setting dialog select the tab <span
class="ec-lmsso-10">Build Artefact </span>and select <span
class="ec-lmsso-10">Static Library</span>
</p><!--l. 83--><p class="noindent" ><img
src="images/032-SetupWorkspaceC09.png" alt="PIC"
/>
</p><!--l. 86--><p class="noindent" >Build the runtime by clicking
</p><!--l. 88--><p class="noindent" ><img
src="images/032-SetupWorkspaceC10.png" alt="PIC"
/>
</p><!--l. 91--><p class="noindent" >The runtime library should be created.
</p><!--l. 93--><p class="noindent" ><img
src="images/032-SetupWorkspaceC11.png" alt="PIC"
/>
</p><!--l. 96--><p class="noindent" >For the tutorials one runtime library should be sufficient. For embedded projects it might be necessary to build
project specific runtime libraries. In this case a separate project for the runtime should be created. Symbolic
links to the sources might be used to avoid duplicate files. Just the configuration file must be duplicated. A
specific library file must exist within the project. Such specific runtime libraries might be referenced from
several applications.
</p>
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