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📁 有关ecos2。0介绍了实时嵌入式的结构以及线程调度的实现和内存的管理等
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<!-- Copyright (C) 2003 Red Hat, Inc.                                --><!-- This material may be distributed only subject to the terms      --><!-- and conditions set forth in the Open Publication License, v1.0  --><!-- or later (the latest version is presently available at          --><!-- http://www.opencontent.org/openpub/).                           --><!-- Distribution of the work or derivative of the work in any       --><!-- standard (paper) book form is prohibited unless prior           --><!-- permission is obtained from the copyright holder.               --><HTML><HEAD><TITLE>Install Tree</TITLE><meta name="MSSmartTagsPreventParsing" content="TRUE"><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="eCos User Guide"HREF="ecos-user-guide.html"><LINKREL="UP"TITLE="The Component Repository and Working Directories"HREF="component-repo-and-working-dirs.html"><LINKREL="PREVIOUS"TITLE="Build Tree"HREF="build-tree.html"><LINKREL="NEXT"TITLE="Application Build Tree"HREF="repository-app-build-tree.html"></HEAD><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">eCos User Guide</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="build-tree.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Chapter 25. The Component Repository and Working Directories</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="repository-app-build-tree.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="INSTALL-TREE">Install Tree</H1><P>The <ICLASS="FIRSTTERM">install tree</I> is the location	  for all files needed for application development. The	  <TTCLASS="FILENAME">libtarget.a</TT> library, which contains the	    custom-built <SPANCLASS="PRODUCTNAME">eCos</SPAN> kernel and other components, is placed	    in the install tree, along with all packages&#8217; public	    header files. If you build the tests, the test executable	    programs will also be placed in the install	    tree. </P><P>By default, the install tree is created by	  <BCLASS="COMMAND">ecosconfig</B> in a subdirectory of the build	  tree called <TTCLASS="FILENAME">install</TT>. This can be	  modified with the <TTCLASS="OPTION">--prefix</TT> option (see	  <AHREF="manual-configuration.html">Chapter 28</A>).	</P><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN2130">Purpose</H2><P>The install tree is where the custom-built	    <TTCLASS="FILENAME">libtarget.a</TT> library, which contains	    the <SPANCLASS="PRODUCTNAME">eCos</SPAN> kernel and other components, is located. The	    install tree is also the location for all the header files	    that are part of a published interface for their	    component. </P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN2135">How is it modified?</H2><P>Recompiling can replace	    <TTCLASS="FILENAME">libtarget.a</TT> and the test	    executables. </P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN2139">When is it edited manually?</H2><P>Where a memory layout requires modification without	    use of the <SPANCLASS="PRODUCTNAME">eCos</SPAN> <SPANCLASS="APPLICATION">Configuration Tool</SPAN>, the memory layout	    files must be edited directly in the install tree. These	    files are located at	    <TTCLASS="FILENAME">install/include/pkgconf/mlt_*.*</TT>. 	    Note that subsequent modification of the install tree	    using the Configuration Tool will result in such manual	    edits being lost.</P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN2145">User applications</H2><P>User application source or binary code should	    <SPANCLASS="emphasis"><ICLASS="EMPHASIS">not</I></SPAN> go in the install tree. </P></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN2149">Examples of files in this hierarchy</H2><P></P><DIVCLASS="VARIABLELIST"><DL><DT><TTCLASS="FILENAME">install/lib/libtarget.a</TT></DT><DD><P>The library containing the kernel and other components.</P></DD><DT><TTCLASS="FILENAME">install/include/cyg/kernel/kapi.h</TT></DT><DD><P>The header file for the kernel C language API.</P></DD><DT><TTCLASS="FILENAME">install/include/pkgconf/mlt_arm_pid_ram.ldi</TT></DT><DD><P>The linker script fragment describing the memory		  layout for linking applications intended for		  execution on an ARM PID development board using RAM		  startup.</P></DD><DT><TTCLASS="FILENAME">install/include/stdio.h</TT></DT><DD><P>The C library header file for standard I/O. </P></DD></DL></DIV></DIV></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="build-tree.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="ecos-user-guide.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="repository-app-build-tree.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Build Tree</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="component-repo-and-working-dirs.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Application Build Tree</TD></TR></TABLE></DIV></BODY></HTML>
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