source: BOOK/final-system/ppc64/glibc.xml@ 3995a05

<?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-system-glibc-32" role="wrap">
  <?dbhtml filename="glibc.html"?>

  <title>Glibc-&glibc-version; 32 Bit Libraries</title>

  <indexterm zone="ch-system-glibc-32">
    <primary sortas="a-Glibc">Glibc</primary>
    <secondary>32 Bit</secondary>
  </indexterm>

  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
  href="../common/glibc.xml"
  xpointer="xpointer(//*[@role='package'])"/>

  <sect2 role="installation">
    <title>Installation of Glibc</title>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='z'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='l1'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='l2'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='b'])"/>

    <para os="u1">The powerpc (32) architecture is expected to fail the
    check-textrel tests because it cannot protect some elf segments in
    shared libraries from being executable and writable. Using the default
    64-bit compiler means the test runs as <literal>__powerpc64__</literal>
    which is <emphasis>not</emphasis> expected to fail. The problem only exists
    in 32-bit, the 64-bit ABI allows the segments to be protected.</para>

    <para os="u2">Other distributions alter gcc to default to 32-bits and
    so do not see this failure.  Whether they then test correctly on 64-bit
    libraries is not our problem.</para>

    <para os="u3">Force the test to use the 32-bit compiler with the following
    <command>sed</command> :</para>

<screen os="u4"><userinput>sed -i "s/\(^check-textrel-CFLAGS = \)/\1 ${BUILD32} /" elf/Makefile</userinput></screen>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='e'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='f'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='g'])"/>

<screen os="h"><userinput>CC="gcc ${BUILD32}" CXX="g++ ${BUILD32}" \
    ../glibc-&glibc-version;/configure --prefix=/usr \
    --disable-profile --enable-kernel=&glibc-kernel-version; \
    --libexecdir=/usr/lib/glibc --host=${CLFS_TARGET32} \
    --enable-obsolete-rpc</userinput></screen>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='i'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='j'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='k'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='l'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../multilib/glibc.xml"
    xpointer="xpointer(//*[@os='l1b'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../multilib/glibc.xml"
    xpointer="xpointer(//*[@os='l2b'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='m'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='n'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='o'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='p'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='q'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='r'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='s'])"/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../common/glibc.xml"
    xpointer="xpointer(//*[@os='t'])"/>

  </sect2>

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

    <para>Details on this package are located in <xref
    linkend="contents-glibc" role="."/></para>

  </sect2>

</sect1>