source: clfs-embedded/BOOK/cross-tools/common/gcc-final.xml@ 5092368

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;
]>

<!-- Common GCC-Final -->

<sect1 id="ch-cross-tools-gcc-final" role="wrap">
  <?dbhtml filename="gcc-final.html"?>

  <title>GCC-&gcc-version; - Final</title>

  <indexterm zone="ch-cross-tools-gcc-final">
    <primary sortas="a-GCC">GCC</primary>
    <secondary>cross tools, final</secondary>
  </indexterm>

  <sect2 role="package">
    <title/>

    <para>The GCC package contains the GNU compiler collection, which includes
    the C compiler.  This second build of GCC will produce the final cross
    compiler which will use the previously built C library.</para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of GCC Cross Compiler</title>

    <para os="b">GCC requires the GMP, MPFR, and MPC packages to either be
    present on the host or to be present in source form within the gcc source
    tree.  Unpack these into the GCC directory after unpacking GCC:</para>

<screen os="ba"><userinput>tar xf ../mpfr-&mpfr-version;.tar.bz2
mv -v mpfr-&mpfr-version; mpfr
tar xf ../gmp-&gmp-version;.tar.bz2
mv -v gmp-&gmp-version; gmp
tar xf ../mpc-&mpc-version;.tar.gz
mv -v mpc-&mpc-version; mpc</userinput></screen>

    <xi:include os="c" xmlns:xi="http://www.w3.org/2003/XInclude"
    href="gcc-static.xml"
    xpointer="xpointer(//*[@os='c'])"/>

    <xi:include os="d" xmlns:xi="http://www.w3.org/2003/XInclude"
    href="gcc-static.xml"
    xpointer="xpointer(//*[@os='d'])"/>

    <xi:include os="e" xmlns:xi="http://www.w3.org/2003/XInclude"
    href="gcc-static.xml"
    xpointer="xpointer(//*[@os='e'])"/>

    <note os="f"><para>If you would like to build a C++ compiler in addition
    to the C compiler, change the following --enable-languages=c option to be
    --enable-languages=c,c++ instead.  A C++ compiler is not required for
    any of the software included in this book.</para></note>

<!-- This is the common configure line for GCC-Final -->
<!-- It's not actually used by any arch but is here for reference. -->
<screen os="ae"><userinput>../gcc-&gcc-version;/configure \
  --prefix=${CLFS}/cross-tools \
  --build=${CLFS_HOST} \
  --target=${CLFS_TARGET} \
  --host=${CLFS_HOST} \
  --with-sysroot=${CLFS}/cross-tools/${CLFS_TARGET} \
  --disable-nls \
  --enable-languages=c \
  --enable-c99 \
  --enable-long-long \
  --disable-libmudflap \
  --with-mpfr=${CLFS}/cross-tools \
  --with-gmp=${CLFS}/cross-tools \
  --with-mpc=${CLFS}/cross-tools \
  --disable-multilib \
  --with-mpfr-include=$(pwd)/../gcc-&gcc-version;/mpfr/src \
  --with-mpfr-lib=$(pwd)/mpfr/src/.libs</userinput></screen>

    <variablelist os="af">
      <title>The meaning of the configure options not used previously:</title>

      <varlistentry os="af2">
        <term><parameter>--enable-c99</parameter></term>
        <listitem>
          <para>Enable C99 support for C programs.</para>
        </listitem>
      </varlistentry>

      <varlistentry os="af3">
        <term><parameter>--enable-long-long</parameter></term>
        <listitem>
          <para>Enables long long support in the compiler.</para>
        </listitem>
      </varlistentry>

    </variablelist>

    <xi:include os="ah" xmlns:xi="http://www.w3.org/2003/XInclude"
    href="gcc-static.xml"
    xpointer="xpointer(//*[@os='ah'])"/>

<screen os="ai"><userinput>make</userinput></screen>

    <xi:include os="aj" xmlns:xi="http://www.w3.org/2003/XInclude"
    href="gcc-static.xml"
    xpointer="xpointer(//*[@os='aj'])"/>

<screen os="ak"><userinput>make install</userinput></screen>

  </sect2>

  <sect2 id="contents-gcc" role="content">
    <title>Contents of GCC</title>

    <segmentedlist>
      <segtitle>Installed programs</segtitle>
      <segtitle>Installed libraries</segtitle>

      <seglistitem>
        <seg>gcc, and gcov</seg>
        <seg>libgcc.a, libgcc_eh.a, and libgcc_s.so</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="gcc">
        <term><command>gcc</command></term>
        <listitem>
          <para>The C compiler</para>
          <indexterm zone="ch-cross-tools-gcc-final gcc">
            <primary sortas="b-gcc">gcc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="gcov">
        <term><command>gcov</command></term>
        <listitem>
          <para>A coverage testing tool; it is used to analyze programs to
          determine where optimizations will have the most effect</para>
          <indexterm zone="ch-cross-tools-gcc-final gcov">
            <primary sortas="b-gcov">gcov</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libgcc">
        <term><filename class="libraryfile">libgcc</filename></term>
        <listitem>
          <para>Contains run-time support for <command>gcc</command></para>
          <indexterm zone="ch-cross-tools-gcc-final libgcc">
            <primary sortas="c-libgcc*">libgcc*</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>