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authorThomas Trepl <thomas@linuxfromscratch.org>2020-06-10 19:31:02 +0000
committerThomas Trepl <thomas@linuxfromscratch.org>2020-06-10 19:31:02 +0000
commit67d1e797c307817787ac03eda253312b110ba45d (patch)
treea3c09faa2ac5b60b9d0d2602a92ae87f2a9cbde7
parentccff95b561e426024e74feb087fb6936c942e223 (diff)
Move stripping to chap-7
git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/cross2@11916 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
-rw-r--r--chapter06/chapter06.xml1
-rw-r--r--chapter06/stripping.xml96
-rw-r--r--chapter07/chapter07.xml1
-rw-r--r--chapter07/stripping.xml132
4 files changed, 133 insertions, 97 deletions
diff --git a/chapter06/chapter06.xml b/chapter06/chapter06.xml
index d08a4d780..243e20dec 100644
--- a/chapter06/chapter06.xml
+++ b/chapter06/chapter06.xml
@@ -29,6 +29,5 @@
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="xz.xml"/>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="binutils-pass2.xml"/>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="gcc-pass2.xml"/>
- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="stripping.xml"/>
</chapter>
diff --git a/chapter06/stripping.xml b/chapter06/stripping.xml
deleted file mode 100644
index 7b7b5c9d0..000000000
--- a/chapter06/stripping.xml
+++ /dev/null
@@ -1,96 +0,0 @@
-<?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-tools-stripping">
- <?dbhtml filename="stripping.html"?>
-
- <title>Stripping</title>
-
- <para>The steps in this section are optional, but if the LFS partition is
- rather small, it is beneficial to learn that unnecessary items can be removed.
- The executables and libraries built so far contain about 70 MB of unneeded
- debugging symbols. Remove those symbols with:</para>
-
-<screen><userinput>$LFS_TGT-strip --strip-debug $LFS/usr/lib/*
-$LFS_TGT-strip --strip-unneeded $LFS/usr/{,s}bin/*</userinput></screen>
-
- <para>These commands will skip a number of files, reporting that it does not
- recognize their file format. Most of these are scripts instead of binaries.
- Note that we use the <command>strip</command> program built in
- <quote>Binutils pass 1</quote>, since it is the one that knows how to strip
- our cross-compiled programs.</para>
-<!-- Normally, the host "strip" could be used too, since it is actually the
-same computer. But Some old versions of binutils may generate buggy crt1.o
-and the like, because they do not know about recently introduced symbol
-types. For more details,
-see https://sourceware.org/bugzilla/show_bug.cgi?id=22875-->
-
- <para>Take care <emphasis>not</emphasis> to use
- <parameter>--strip-unneeded</parameter> on the libraries. The static
- ones would be destroyed and the toolchain packages would need to be
- built all over again.</para>
-
- <para>To save more, remove the documentation:</para>
-
-<screen><userinput>rm -rf $LFS/usr/{,share}/{info,man,doc}</userinput></screen>
-
- <para>The libtool .la files are only useful when linking with static
- libraries. They are unneeded, and potentially harmful, when using dynamic
- shared libraries, specially when using also non-autotools build systems.
- Remove those files now:</para>
-
-<screen><userinput>find $LFS/usr/{lib,libexec} -name \*.la -delete</userinput></screen>
-
- <para>At this point, you should have at least 3 GB of free space in
- <envar>$LFS</envar> that can be used to build and install Glibc and Gcc in
- the next phase. If you can build and install Glibc, you can build and install
- the rest too.</para>
-
- <sect2>
- <title>Backup / Restore</title>
-
- <para>
- Now that the essential tools has been created, its time to think about
- a backup. When every check has passed successfully in the previously
- built packages, your temporary tools are in a good state and might be
- backed up for later reuse. In case of fatal failures in the subsequent
- sections, it often turns out that removing everything and start over
- (more carefully) is the best option to recover. Unfortunatly, all the
- temporary tools will be removed, too. To avoid extra time to redo
- something which has been built successfully, make sure you have at least
- 600 MB free disk space (the source tarballs will be included in the
- backup archive) in the home directory of user
- <systemitem class="username">lfs</systemitem> and prepare a backup:
- </para>
-
-<screen role="nodump"><userinput>cd $LFS &amp;&amp;
-tar -cJpf $HOME/temp-tools.tar.xz .
-</userinput></screen>
-
- <para>
- In case you have to start over as some mistakes has been made, you can
- use this backup to restore the temporary tools and save some time on
- the way to recover. Since the sources are located under
- <filename class="directory">$LFS</filename>, they are included in the
- backup archive as well, so you need not to download them again. After
- checking that <filename class="directory">$LFS</filename> is set proper,
- restore the backup by executing the following commands:
- </para>
-
-<screen role="nodump"><userinput>cd $LFS &amp;&amp;
-rm -rf ./* &amp;&amp;
-tar -xpf $HOME/temp-tools.tar.xz
-</userinput></screen>
-
- <para>
- Again, double check that the environment has been setup proper and
- continue building the rest of the system.
- </para>
-
- </sect2>
-
-</sect1>
diff --git a/chapter07/chapter07.xml b/chapter07/chapter07.xml
index 51d2b6f9c..df114396e 100644
--- a/chapter07/chapter07.xml
+++ b/chapter07/chapter07.xml
@@ -27,5 +27,6 @@
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="tcl.xml"/>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="expect.xml"/>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="dejagnu.xml"/>
+ <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="stripping.xml"/>
</chapter>
diff --git a/chapter07/stripping.xml b/chapter07/stripping.xml
new file mode 100644
index 000000000..efb1af3c5
--- /dev/null
+++ b/chapter07/stripping.xml
@@ -0,0 +1,132 @@
+<?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-tools-stripping">
+ <?dbhtml filename="stripping.html"?>
+
+ <title>Finishing Temporary Tools</title>
+
+ <para>
+ The steps in this section are optional. Skip this section entirely
+ if you are not really short on disk space and do not want to create
+ a backup of the temporary tools.
+ </para>
+
+ <sect2>
+ <title>Stripping</title>
+
+ <para>If the LFS partition is rather small, it is beneficial to
+ learn that unnecessary items can be removed.
+ The executables and libraries built so far contain about 70 MB of unneeded
+ debugging symbols.</para>
+
+<screen><userinput>strip --strip-debug /usr/lib/*
+strip --strip-unneeded /usr/{,s}bin/*
+strip --strip-unneeded /tools/bin/*</userinput></screen>
+
+ <para>These commands will skip a number of files, reporting that it does not
+ recognize their file format. Most of these are scripts instead of binaries.
+ Note that we use the <command>strip</command> program built in
+ <quote>Binutils pass 1</quote>, since it is the one that knows how to strip
+ our cross-compiled programs.</para>
+ <!-- Normally, the host "strip" could be used too, since it is actually the
+ same computer. But Some old versions of binutils may generate buggy crt1.o
+ and the like, because they do not know about recently introduced symbol
+ types. For more details,
+ see https://sourceware.org/bugzilla/show_bug.cgi?id=22875-->
+
+ <para>Take care <emphasis>not</emphasis> to use
+ <parameter>--strip-unneeded</parameter> on the libraries. The static
+ ones would be destroyed and the toolchain packages would need to be
+ built all over again.</para>
+
+ <para>To save more, remove the documentation:</para>
+
+<screen><userinput>rm -rf /usr/{,share}/{info,man,doc}</userinput></screen>
+
+ <para>The libtool .la files are only useful when linking with static
+ libraries. They are unneeded, and potentially harmful, when using dynamic
+ shared libraries, specially when using also non-autotools build systems.
+ Remove those files now:</para>
+
+<screen><userinput>find /usr/{lib,libexec} -name \*.la -delete</userinput></screen>
+
+ <para>At this point, you should have at least 3 GB of free space in
+ <envar>$LFS</envar> that can be used to build and install Glibc and Gcc in
+ the next phase. If you can build and install Glibc, you can build and install
+ the rest too.</para>
+
+ </sect2>
+
+ <sect2>
+ <title>Backup / Restore</title>
+
+ <para>
+ Now that the essential tools have been created, its time to think about
+ a backup. When every check has passed successfully in the previously
+ built packages, your temporary tools are in a good state and might be
+ backed up for later reuse. In case of fatal failures in the subsequent
+ sections, it often turns out that removing everything and starting over
+ (more carefully) is the best option to recover. Unfortunatly, all the
+ temporary tools will be removed, too. To avoid extra time to redo
+ something which has been built successfully, prepare a backup.
+ </para>
+
+ <para>
+ Leave the chroot environment and make sure you have at least
+ 600 MB free disk space (the source tarballs will be included in
+ the backup archive) in the home directory of user
+ <systemitem class="username">lfs</systemitem>. Leaving the
+ chroot environment is required as the backup should be stored
+ outside of the <filename class="directory">$LFS</filename> directory
+ but those cannot be accessed when in chroot. Leave chroot environment
+ and unmount the virtual kernel filesystems:
+ </para>
+
+<screen role="nodump"><userinput>exit
+umount $LFS/dev{/pts,}
+umount $LFS/{sys,proc,run}
+</userinput></screen>
+
+ <para>Create the backup archive:</para>
+<screen role="nodump"><userinput>cd $LFS &amp;&amp;
+tar -cJpf $HOME/temp-tools.tar.xz .
+</userinput></screen>
+
+ <para>
+ In case you have to start over as some mistakes has been made, you can
+ use this backup to restore the temporary tools and save some time on
+ the way to recover. Since the sources are located under
+ <filename class="directory">$LFS</filename>, they are included in the
+ backup archive as well, so you need not to download them again. After
+ checking that <filename class="directory">$LFS</filename> is set proper,
+ restore the backup by executing the following commands:
+ </para>
+
+<screen role="nodump"><userinput>cd $LFS &amp;&amp;
+rm -rf ./* &amp;&amp;
+tar -xpf $HOME/temp-tools.tar.xz
+</userinput></screen>
+
+ <para>
+ Again, double check that the environment has been setup proper and
+ continue building the rest of the system.
+ </para>
+
+ <important>
+ <para>
+ If you left the chroot environment either to create a backup
+ or restart building using a restore, remember to mount the
+ kernel virtual filesystems as described in <xref
+ linkend='ch-tools-kernfs'/> and enter the
+ chroot environment (see <xref
+ linkend='ch-tools-chroot'/>) again before continuing.</para>
+ </important>
+
+ </sect2>
+
+</sect1>