mirror of
https://git.linuxfromscratch.org/lfs.git
synced 2025-01-21 22:48:31 +00:00
460ac75847
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2674 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
51 lines
2.3 KiB
XML
51 lines
2.3 KiB
XML
<sect1 id="ch06-adjustingtoolchain">
|
|
<title>Adjusting toolchain</title>
|
|
<?dbhtml filename="adjustingtoolchain.html" dir="chapter06"?>
|
|
|
|
<para>Now that we have compiled all the necessary tools, it is time to
|
|
re-adjust our toolchain. We will set it up so that it will link any newly
|
|
compiled program against the new Glibc. Basically, this is the reverse of
|
|
what we did in the "Locking in" stage in the beginning of chapter 5.</para>
|
|
|
|
<para>The first thing to do is to adjust the linker scripts. For this we
|
|
retained the <filename class="directory">binutils-build</filename>
|
|
directory from the second pass over Binutils. Run the following:</para>
|
|
|
|
<para><screen><userinput>cd binutils-build
|
|
make -C ld INSTALL=/stage1/bin/install install-data-local</userinput></screen></para>
|
|
|
|
<para>This installs the adjusted linker scripts. The linker scripts contain
|
|
no mention of <filename class="directory">/stage1/lib</filename> anymore.
|
|
From now on every compiled program will link <emphasis>only</emphasis>
|
|
against the libraries in <filename>/usr/lib</filename> and
|
|
<filename>/lib</filename>. The extra
|
|
<userinput>INSTALL=/stage1/bin/install</userinput> is needed because the
|
|
Makefile created during the second pass still contains the reference to
|
|
<filename>/usr/bin/install</filename>, which we obviously haven't installed
|
|
yet.</para>
|
|
|
|
<para>You can now remove the Binutils source and build directories.</para>
|
|
|
|
<para>The next thing to do is to amend our GCC specs file so that it points
|
|
to the new dynamic linker. Just like earlier on, we use a sed to accomplish
|
|
this:</para>
|
|
|
|
<para><screen><userinput>SPECFILE=/stage1/lib/gcc-lib/*/*/specs
|
|
sed -e 's@/stage1/lib/ld.so.1@/lib/ld.so.1@g' \
|
|
-e 's@/stage1/lib/ld-linux.so.2@/lib/ld-linux.so.2@g' $SPECFILE > XX
|
|
mv XX $SPECFILE
|
|
unset SPECFILE</userinput></screen></para>
|
|
|
|
<para>Again, cutting and pasting the above is recommended. And just like
|
|
before, it is a good idea to check the linker scripts and the specs file o
|
|
ensure the intended changes were actually made.</para>
|
|
|
|
<para>Note that the linker scripts will still contain a reference to
|
|
<filename class="directory">/stage1/i686-pc-linux-gnu/lib</filename>. This
|
|
is unavoidable, but luckily does not present a problem. There are no
|
|
libraries in that location as all the temporary stage1 libraries are
|
|
located in <filename class="directory">/stage1/lib</filename>.</para>
|
|
|
|
</sect1>
|
|
|