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-<?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-strippingagain">
- <?dbhtml filename="strippingagain.html"?>
-
- <title>Stripping Again</title>
-
- <para>This section is optional. If the intended user is not a
- programmer and does not plan to do
- any debugging on the system software, the system size can be decreased
- by about 90 MB by removing the debugging symbols from binaries and
- libraries. This causes no inconvenience other than not being able to
- debug the software fully anymore.</para>
-
- <para>Most people who use the commands mentioned below do not
- experience any difficulties. However, it is easy to make a typo and
- render the new system unusable, so before running the
- <command>strip</command> commands, it is a good idea to make a
- backup of the LFS system in its current state.</para>
-
- <para>First place the debugging symbols for selected libraries
- in separate files. This debugging information is needed if running
- regression tests that use <ulink
- url='&blfs-book;/general/valgrind.html'>valgrind</ulink> or <ulink
- url='&blfs-book;/general/gdb.html'>gdb</ulink> later in BLFS.
- </para>
-
-<!-- also of interest are libgfortan, libgo, libgomp, and libobjc from gcc -->
-
-<!--<screen><userinput>save_lib="ld-2.25.so libc-2.25.so libpthread-2.25.so libthread_db-1.0.so"-->
-<screen><userinput>save_lib="ld-&glibc-version;.so libc-&glibc-version;.so libpthread-&glibc-version;.so libthread_db-&libthread_db-version;.so"
-
-cd /lib
-
-for LIB in $save_lib; do
- objcopy --only-keep-debug $LIB $LIB.dbg
- strip --strip-unneeded $LIB
- objcopy --add-gnu-debuglink=$LIB.dbg $LIB
-done
-
-save_usrlib="libquadmath.so.&libquadmath-version; libstdc++.so.&libstdcpp-version;
- libitm.so.&libitm-version; libatomic.so.&libatomic-version;" <!-- libcilkrts.so.&libcilkrts-version;-->
-
-cd /usr/lib
-
-for LIB in $save_usrlib; do
- objcopy --only-keep-debug $LIB $LIB.dbg
- strip --strip-unneeded $LIB
- objcopy --add-gnu-debuglink=$LIB.dbg $LIB
-done
-
-unset LIB save_lib save_usrlib</userinput></screen>
-
-<!-- <para>Before performing the stripping, take special care to ensure that
- none of the binaries that are about to be stripped are running:</para>
-
-<screen role="nodump"><userinput>exec /tools/bin/bash</userinput></screen>
-
- <para>Now the binaries and libraries can be safely stripped:</para>
--->
- <para>Now the binaries and libraries can be stripped:</para>
-<screen><userinput>find /usr/lib -type f -name \*.a \
- -exec strip --strip-debug {} ';'
-
-find /lib /usr/lib -type f -name \*.so* ! -name \*dbg \
- -exec strip --strip-unneeded {} ';'
-
-find /{bin,sbin} /usr/{bin,sbin,libexec} -type f \
- -exec strip --strip-all {} ';'</userinput></screen>
-
- <para>A large number of files will be reported as having their file
- format not recognized. These warnings can be safely ignored. These
- warnings indicate that those files are scripts instead of
- binaries.</para>
-
-</sect1>