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6099a47149
They are really harmful. In Binutils pass 2, libstdc++.la caused the building system to use host /usr/lib/libstdc++.so for gprofng. We now has disabled gprofng for pass 2, but the similar issue also exists in GCC pass 2. In a normal LFS build, the building system silently uses /usr/lib/libstdc++.so (I guess it does not blow up simply because some blind luck); in a real cross build (x86 -> ARM for example) the build will fail. Remove the .la files to fix this issue. Instead of only modifying clfs-ng, it makes more sense to apply the change for trunk: though the build does not fail, using host library is still a contamination.
117 lines
3.5 KiB
XML
117 lines
3.5 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-tools-binutils-pass2" role="wrap">
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<?dbhtml filename="binutils-pass2.html"?>
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<sect1info condition="script">
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<productname>binutils-pass2</productname>
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<productnumber>&binutils-version;</productnumber>
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<address>&binutils-url;</address>
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</sect1info>
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<title>Binutils-&binutils-version; - Pass 2</title>
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<indexterm zone="ch-tools-binutils-pass2">
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<primary sortas="a-Binutils">Binutils</primary>
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<secondary>tools, pass 2</secondary>
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</indexterm>
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<sect2 role="package">
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<title/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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href="../chapter08/binutils.xml"
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xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem>
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<seg>&binutils-tmpp2-sbu;</seg>
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<seg>&binutils-tmpp2-du;</seg>
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</seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Binutils</title>
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<!-- Don't remove this until Binutils upstream updates the libtool
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copy. On some host distros the issue doesn't show up. -->
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<para>Binutils ships an outdated libtool copy in the tarball. It lacks
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sysroot support so the produced binaries will be mistakenly linked to
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libraries from the host distro. Workaround this issue:</para>
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<screen><userinput remap="pre">sed '6009s/$add_dir//' -i ltmain.sh</userinput></screen>
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<para>Create a separate build directory again:</para>
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<screen><userinput remap="pre">mkdir -v build
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cd build</userinput></screen>
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<para>Prepare Binutils for compilation:</para>
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<screen><userinput remap="configure">../configure \
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--prefix=/usr \
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--build=$(../config.guess) \
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--host=$LFS_TGT \
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--disable-nls \
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--enable-shared \
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--enable-gprofng=no \
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--disable-werror \
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--enable-64-bit-bfd</userinput></screen>
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<variablelist>
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<title>The meaning of the new configure options:</title>
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<varlistentry>
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<term><parameter>--enable-shared</parameter></term>
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<listitem>
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<para>Builds <filename
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class="libraryfile">libbfd</filename> as a shared library.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--enable-64-bit-bfd</parameter></term>
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<listitem>
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<para>Enables 64-bit support (on hosts with narrower word sizes).
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May not be needed on 64-bit systems, but does no harm.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>Compile the package:</para>
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<screen><userinput remap="make">make</userinput></screen>
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<para>Install the package:</para>
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<screen><userinput remap="install">make DESTDIR=$LFS install</userinput></screen>
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<para>Remove the libtool archive files because they are harmful for
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cross compilation, and remove unnecessary static libraries:</para>
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<screen><userinput remap="install">rm -v $LFS/usr/lib/lib{bfd,ctf,ctf-nobfd,opcodes}.{a,la}</userinput></screen>
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</sect2>
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<sect2 role="content">
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<title/>
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<para>Details on this package are located in
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<xref linkend="contents-binutils" role="."/></para>
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</sect2>
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</sect1>
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