source: clfs-embedded/BOOK/cross-tools/common/libc.xml@ 3e2104b

<?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;
]>

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

  <title>musl-libc-&musl-libc-version;</title>

  <indexterm zone="ch-cross-tools-libc">
    <primary sortas="a-libc">musl-libc</primary>
    <secondary>cross tools</secondary>
  </indexterm>

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

    <para>The musl-libc package contains the main C library. This library provides
    the basic routines for allocating memory, searching directories, opening and
    closing files, reading and writing files, string handling, pattern matching,
    arithmetic, and so on.</para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of musl-libc</title>

    <para os="h">Configure the package:</para>

<screen os="i"><userinput>CC=${CLFS_TARGET}-gcc ./configure \
  --prefix=${CLFS}/cross-tools/${CLFS_TARGET} \
  --target=${CLFS_TARGET} \
  --enable-debug</userinput></screen>

    <para os="h">Compile the package:</para>

<screen os="i"><userinput>CC=${CLFS_TARGET}-gcc make</userinput></screen>

    <para os="l">Install the package:</para>

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

    <para os="k">Make the proper symlinks for the dynamic loader such that
      dynamically linked executables properly find the musl ld:</para>

<screen os="m"><userinput>ln -s libc.so ${CLFS}/cross-tools/${CLFS_TARGET}/ld-musl-arm.so.1
ln -s libc.so ${CLFS}/cross-tools/${CLFS_TARGET}/ld-musl-armhf.so.1
ln -s libc.so ${CLFS}/cross-tools/${CLFS_TARGET}/ld-musl-i386.so.1
ln -s libc.so ${CLFS}/cross-tools/${CLFS_TARGET}/ld-musl-mips.so.1</userinput></screen>

  </sect2>

  <sect2 id="contents-musl-libc" role="content">
    <title>Contents of musl-libc</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed Headers</segtitle>
      <seglistitem>
        <seg>ld-musl-libc.so.0</seg>
        <seg> libc.so.0, libcrypt.so.0, libdl.so.0, libm.so.0, libpthread.so.0,
        librt.so.0</seg>
        <seg>To be written...</seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="ld-musl-libc">
        <term><command>ld-musl-libc</command></term>
        <listitem>
          <para>The musl-libc dynamic linker / loader</para>
          <indexterm zone="ch-cross-tools-libc ld-musl-libc">
            <primary sortas="b-ld-musl-libc">ld-musl-libc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libc">
        <term><filename class="libraryfile">libc</filename></term>
        <listitem>
          <para>The C library</para>
          <indexterm zone="ch-cross-tools-libc libc">
            <primary sortas="c-libc">libc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libcrypt">
        <term><filename class="libraryfile">libcrypt</filename></term>
        <listitem>
          <para>The cryptographic library</para>
          <indexterm zone="ch-cross-tools-libc libcrypt">
            <primary sortas="c-libcrypt">libcrypt</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libdl">
        <term><filename class="libraryfile">libdl</filename></term>
        <listitem>
          <para>The musl-libc dynamic linker / loader library</para>
          <indexterm zone="ch-cross-tools-libc libdl">
            <primary sortas="c-libdl">libdl</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libm">
        <term><filename class="libraryfile">libm</filename></term>
        <listitem>
          <para>The math library</para>
          <indexterm zone="ch-cross-tools-libc libm">
            <primary sortas="c-libm">libm</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libpthread">
        <term><filename class="libraryfile">libpthread</filename></term>
        <listitem>
          <para>The POSIX thread library</para>
          <indexterm zone="ch-cross-tools-libc libpthread">
            <primary sortas="c-libpthread">libpthread</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="librt">
        <term><filename class="libraryfile">librt</filename></term>
        <listitem>
          <para>The clock and timer library</para>
          <indexterm zone="ch-cross-tools-libc librt">
            <primary sortas="c-librt">librt</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>
  </sect2>
</sect1>