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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [doc/] [html/] [cdl-guide/] [ref.script.html] - Blame information for rev 174

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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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<!-- Distribution of the work or derivative of the work in any       -->
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<!-- permission is obtained from the copyright holder.               -->
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<HTML
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><HEAD
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><TITLE
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>script</TITLE
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><meta name="MSSmartTagsPreventParsing" content="TRUE">
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<META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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"><LINK
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REL="HOME"
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TITLE="The eCos Component Writer's Guide"
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HREF="cdl-guide.html"><LINK
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REL="UP"
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TITLE="CDL Language Specification"
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HREF="reference.html"><LINK
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TITLE="requires"
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TITLE="Templates, Targets and Other Topics"
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HREF="advanced.html"></HEAD
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><BODY
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VLINK="#840084"
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><DIV
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SUMMARY="Header navigation table"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>The <SPAN
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CLASS="APPLICATION"
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>eCos</SPAN
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> Component Writer's Guide</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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><A
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HREF="ref.requires.html"
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>Prev</A
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><TD
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></TD
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><TD
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WIDTH="10%"
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>Next</A
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></TD
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><H1
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><A
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NAME="REF.SCRIPT"><SPAN
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CLASS="PROPERTY"
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>script</SPAN
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></H1
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><DIV
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CLASS="REFNAMEDIV"
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><A
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NAME="AEN4954"
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></A
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><H2
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>Name</H2
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>Property <SPAN
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CLASS="PROPERTY"
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>script</SPAN
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>&nbsp;--&nbsp;Include additional configuration information from another
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CDL script.</DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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><A
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NAME="AEN4958"><H2
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>Synopsis</H2
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><TABLE
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SYNOPSIS"
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>cdl_component &lt;name&gt; {
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    script &lt;filename&gt;
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    &#8230;
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}</PRE
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></TD
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></TR
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></TABLE
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4960"
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></A
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><H2
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>Description</H2
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><P
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>It is possible to define all the configuration options and
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sub-components for a given package in a single CDL script, either by
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nesting them in the appropriate command bodies, by extensive use of
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the <SPAN
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CLASS="PROPERTY"
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>parent</SPAN
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> property, or by some combination of these two. However
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for large packages this is inconvenient and it is better to split the
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raw configuration data over several different files. The <SPAN
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CLASS="PROPERTY"
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>script</SPAN
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>
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property can be used to achieve this. It takes a single filename as
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argument. If the package follows the <A
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HREF="package.html#PACKAGE.HIERARCHY"
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>directory layout conventions</A
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> then
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the configuration tools will look for the specified file in the
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<TT
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CLASS="FILENAME"
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>cdl</TT
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> sub-directory of the
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package, otherwise it will look for the file relative to the package's
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top-level directory.</P
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><P
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>The <SPAN
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CLASS="PROPERTY"
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>script</SPAN
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> property can only occur in the body of a <TT
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CLASS="LITERAL"
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>cdl_component</TT
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>command, and only one <SPAN
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CLASS="PROPERTY"
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>script</SPAN
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> property per body is allowed.</P
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4971"
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></A
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><H2
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>Example</H2
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><TABLE
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>cdl_component CYGPKG_UITRON_TASKS {
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    display      "Tasks"
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    flavor        none
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    description   "
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        uITRON Tasks are the basic blocks of multi-tasking
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        in the uITRON world; they are threads or lightweight
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        processes, sharing the address space and the CPU.
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        They communicate using the primitives outlined above.
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        Each has a stack, an entry point (a C or C++ function),
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        and (where appropriate) a scheduling priority."
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    script        tasks.cdl
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}</PRE
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></TD
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4974"
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></A
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><H2
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>See Also</H2
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><P
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>Command  <A
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HREF="ref.cdl-component.html"
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><TT
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CLASS="LITERAL"
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>cdl_component</TT
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></A
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>,
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and property <A
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HREF="ref.parent.html"
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><SPAN
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CLASS="PROPERTY"
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>parent</SPAN
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></A
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>.</P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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HREF="ref.requires.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="cdl-guide.html"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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><A
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HREF="advanced.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><SPAN
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CLASS="PROPERTY"
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>requires</SPAN
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="reference.html"
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ACCESSKEY="U"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Templates, Targets and Other Topics</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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>

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