source: BOOK/final-system/x86_64-64/eglibc.xml@ 1756a6e

clfs-1.2 clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 1756a6e was 093b0e8, checked in by Jim Gifford <clfs@…>, 16 years ago

Cross-LFS moved to Eglibc 2.10.1

  • Property mode set to 100644
File size: 6.5 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-eglibc" role="wrap">
9 <?dbhtml filename="eglibc.html"?>
10
11 <title>EGLIBC-&eglibc-version;</title>
12
13 <indexterm zone="ch-system-eglibc">
14 <primary sortas="a-EGLIBC">EGLIBC</primary>
15 </indexterm>
16
17 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
18 href="../common/eglibc.xml"
19 xpointer="xpointer(//*[@role='package'])"/>
20
21 <sect2 role="installation">
22 <title>Installation of EGLIBC</title>
23
24 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
25 href="../common/eglibc.xml"
26 xpointer="xpointer(//*[@os='z'])"/>
27
28 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
29 href="../common/eglibc.xml"
30 xpointer="xpointer(//*[@os='b'])"/>
31
32 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
33 href="../common/eglibc.xml"
34 xpointer="xpointer(//*[@os='e'])"/>
35
36 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
37 href="../common/eglibc.xml"
38 xpointer="xpointer(//*[@os='f'])"/>
39
40 <para os="l1">Tell EGLIBC to install its libraries into
41 <filename class="directory">/lib</filename>:</para>
42
43<screen os="l2"><userinput>echo "slibdir=/lib" &gt;&gt; configparms</userinput></screen>
44
45 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
46 href="../common/eglibc.xml"
47 xpointer="xpointer(//*[@os='g'])"/>
48
49<screen os="h"><userinput>CFLAGS="-mtune=generic -g -O2" \
50 ../eglibc-&eglibc-version;/configure --prefix=/usr \
51 --disable-profile --enable-add-ons --enable-kernel=2.6.0 \
52 --libexecdir=/usr/lib/eglibc --libdir=/usr/lib</userinput></screen>
53
54 <variablelist os="i">
55 <title>The meaning of the new configure option:</title>
56
57 <varlistentry>
58 <term><parameter>--libexecdir=/usr/lib/eglibc</parameter></term>
59 <listitem>
60 <para>This changes the location of the <command>pt_chown</command>
61 program from its default of <filename
62 class="directory">/usr/libexec</filename> to <filename
63 class="directory">/usr/lib/eglibc</filename>.</para>
64 </listitem>
65 </varlistentry>
66 </variablelist>
67
68 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
69 href="../common/eglibc.xml"
70 xpointer="xpointer(//*[@os='j'])"/>
71
72 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
73 href="../common/eglibc.xml"
74 xpointer="xpointer(//*[@os='k'])"/>
75
76 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
77 href="../common/eglibc.xml"
78 xpointer="xpointer(//*[@os='l'])"/>
79
80 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
81 href="../common/eglibc.xml"
82 xpointer="xpointer(//*[@os='m'])"/>
83
84 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
85 href="../multilib/eglibc-64bit.xml"
86 xpointer="xpointer(//*[@os='n'])"/>
87
88 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
89 href="../multilib/eglibc-64bit.xml"
90 xpointer="xpointer(//*[@os='o'])"/>
91
92 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
93 href="../multilib/eglibc-64bit.xml"
94 xpointer="xpointer(//*[@os='p'])"/>
95
96 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
97 href="../common/eglibc.xml"
98 xpointer="xpointer(//*[@os='q'])"/>
99
100 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
101 href="../common/eglibc.xml"
102 xpointer="xpointer(//*[@os='r'])"/>
103
104 <para>The install will finish by checking that everything is correctly installed.
105 Unfortunately, it will test for a multilib installation. On x86_64 Pure64 this means
106 it will try to test the non-existent 32-bit loader which has a different name
107 from the 64-bit loader (unlike on other 64-bit architectures). We fool it by
108 creating a symlink to the real loader.</para>
109
110 <screen><userinput>ln -sv &eglibc-ld-name; /lib/ld-linux.so.2</userinput></screen>
111
112 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
113 href="../common/eglibc.xml"
114 xpointer="xpointer(//*[@os='s'])"/>
115
116 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
117 href="../common/eglibc.xml"
118 xpointer="xpointer(//*[@os='t'])"/>
119
120 <para>Now we can remove this symlink. We also need to correct the <command>
121 /usr/bin/ldd</command> script - if you look at this, you will see it references
122 not only the 32-bit linker, but also /lib64 where it thinks the 64-bit linker
123 is. The following <command>sed</command> will correct this:</para>
124
125 <screen><userinput>rm -v /lib/ld-linux.so.2
126cp -v /usr/bin/ldd{,.bak}
127sed '/RTLDLIST/s%/ld-linux.so.2 /lib64%%' /usr/bin/ldd.bak >/usr/bin/ldd</userinput></screen>
128
129 <para>Check the script to make sure the sed worked correctly, then delete
130 the backup.</para>
131
132 <screen><userinput>rm -v /usr/bin/ldd.bak</userinput></screen>
133
134 </sect2>
135
136 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
137 href="../common/eglibc.xml"
138 xpointer="xpointer(id('i18n-eglibc'))"/>
139
140 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
141 href="../common/eglibc.xml"
142 xpointer="xpointer(id('conf-eglibc'))"/>
143
144 <sect2 id="conf-ld" role="configuration">
145 <title>Configuring The Dynamic Loader</title>
146
147 <indexterm zone="conf-ld">
148 <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
149 </indexterm>
150
151 <para>By default, the dynamic loader (<filename
152 class="libraryfile">/lib/ld-linux-x86-64.so.2</filename>) searches through
153 <filename class="directory">/lib</filename> and <filename
154 class="directory">/usr/lib</filename> for dynamic libraries that are
155 needed by programs as they are run. However, if there are libraries in
156 directories other than <filename class="directory">/lib</filename> and
157 <filename class="directory">/usr/lib</filename>, these need to be
158 added to the <filename>/etc/ld.so.conf</filename> file in order
159 for the dynamic loader to find them. Two directories that are commonly
160 known to contain additional libraries are <filename
161 class="directory">/usr/local/lib</filename> and <filename
162 class="directory">/opt/lib</filename>, so add those directories to the
163 dynamic loader's search path.</para>
164
165 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
166 href="../common/eglibc.xml"
167 xpointer="xpointer(//*[@os='ld-b'])"/>
168
169 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
170 href="../common/eglibc.xml"
171 xpointer="xpointer(//*[@os='ld-c'])"/>
172
173 </sect2>
174
175 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
176 href="../common/eglibc.xml"
177 xpointer="xpointer(id('contents-eglibc'))"/>
178
179</sect1>
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