source: BOOK/final-system/x86_64-64/eglibc.xml @ 8872181

clfs-2.1clfs-3.0.0-systemdclfs-3.0.0-sysvinitsystemdsysvinit
Last change on this file since 8872181 was 8872181, checked in by William Harrington <kb0iic@…>, 9 years ago

Update CFLAGS for final-system eglibc.

  • Property mode set to 100644
File size: 7.1 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/2001/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/2001/XInclude"
25    href="../common/eglibc.xml"
26    xpointer="xpointer(//*[@os='z'])"/>
27
28    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
29    href="../common/eglibc.xml"
30    xpointer="xpointer(//*[@os='l1'])"/>
31
32    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
33    href="../common/eglibc.xml"
34    xpointer="xpointer(//*[@os='l2'])"/>
35
36    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
37    href="../common/eglibc.xml"
38    xpointer="xpointer(//*[@os='l3'])"/>
39
40    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
41    href="../common/eglibc.xml"
42    xpointer="xpointer(//*[@os='l4'])"/>
43
44    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
45    href="../common/eglibc.xml"
46    xpointer="xpointer(//*[@os='b'])"/>
47
48    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
49    href="../common/eglibc.xml"
50    xpointer="xpointer(//*[@os='e'])"/>
51
52    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
53    href="../common/eglibc.xml"
54    xpointer="xpointer(//*[@os='f'])"/>
55
56    <para os="l5">Tell EGLIBC to install its libraries into
57    <filename class="directory">/lib</filename>:</para>
58
59<screen os="l6"><userinput>echo "slibdir=/lib" &gt;&gt; configparms</userinput></screen>
60
61    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
62    href="../common/eglibc.xml"
63    xpointer="xpointer(//*[@os='g'])"/>
64
65<screen os="h"><userinput>CFLAGS="-O2" \
66    ../eglibc-&eglibc-version;/configure --prefix=/usr \
67    --disable-profile --enable-kernel=2.6.32 \
68    --libexecdir=/usr/lib/eglibc --libdir=/usr/lib \
69    --enable-obsolete-rpc</userinput></screen>
70
71    <variablelist os="i">
72      <title>The meaning of the new configure option:</title>
73
74      <varlistentry>
75        <term><parameter>--libexecdir=/usr/lib/eglibc</parameter></term>
76        <listitem>
77          <para>This changes the location of the <command>pt_chown</command>
78          program from its default of <filename
79          class="directory">/usr/libexec</filename> to <filename
80          class="directory">/usr/lib/eglibc</filename>.</para>
81        </listitem>
82      </varlistentry>
83    </variablelist>
84
85    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
86    href="../common/eglibc.xml"
87    xpointer="xpointer(//*[@os='j'])"/>
88
89    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
90    href="../common/eglibc.xml"
91    xpointer="xpointer(//*[@os='k'])"/>
92
93    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
94    href="../common/eglibc.xml"
95    xpointer="xpointer(//*[@os='l'])"/>
96
97    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
98    href="../common/eglibc.xml"
99    xpointer="xpointer(//*[@os='m'])"/>
100
101    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
102    href="../multilib/eglibc-64bit.xml"
103    xpointer="xpointer(//*[@os='n'])"/>
104
105    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
106    href="../multilib/eglibc-64bit.xml"
107    xpointer="xpointer(//*[@os='o'])"/>
108
109    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
110    href="../multilib/eglibc-64bit.xml"
111    xpointer="xpointer(//*[@os='p'])"/>
112
113    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
114    href="../common/eglibc.xml"
115    xpointer="xpointer(//*[@os='q'])"/>
116
117    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
118    href="../common/eglibc.xml"
119    xpointer="xpointer(//*[@os='r'])"/>
120
121    <para>The install will finish by checking that everything is correctly installed.
122    Unfortunately, it will test for a multilib installation. On x86_64 Pure64 this means
123    it will try to test the non-existent 32-bit loader which has a different name
124    from the 64-bit loader (unlike on other 64-bit architectures).  We fool it by
125    creating a symlink to the real loader.</para>
126
127    <screen><userinput>ln -sv &eglibc-ld-name; /lib/ld-linux.so.2</userinput></screen>
128
129    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
130    href="../common/eglibc.xml"
131    xpointer="xpointer(//*[@os='s'])"/>
132
133    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
134    href="../common/eglibc.xml"
135    xpointer="xpointer(//*[@os='t'])"/>
136
137    <para>Now we can remove this symlink.  We also need to correct the <command>
138    /usr/bin/ldd</command> script - if you look at this, you will see it references
139    not only the 32-bit linker, but also /lib64 where it thinks the 64-bit linker
140    is. The following <command>sed</command> will correct this:</para>
141
142    <screen><userinput>rm -v /lib/ld-linux.so.2
143cp -v /usr/bin/ldd{,.bak}
144sed '/RTLDLIST/s%/ld-linux.so.2 /lib64%%' /usr/bin/ldd.bak >/usr/bin/ldd</userinput></screen>
145
146    <para>Check the script to make sure the sed worked correctly, then delete
147    the backup.</para>
148
149    <screen><userinput>rm -v /usr/bin/ldd.bak</userinput></screen>
150
151  </sect2>
152
153  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
154  href="../common/eglibc.xml"
155  xpointer="xpointer(id('i18n-eglibc'))"/>
156
157  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
158  href="../common/eglibc.xml"
159  xpointer="xpointer(id('conf-eglibc'))"/>
160
161  <sect2 id="conf-ld" role="configuration">
162    <title>Configuring The Dynamic Loader</title>
163
164    <indexterm zone="conf-ld">
165      <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
166    </indexterm>
167
168    <para>By default, the dynamic loader (<filename
169    class="libraryfile">/lib/ld-linux-x86-64.so.2</filename>) searches through
170    <filename class="directory">/lib</filename> and <filename
171    class="directory">/usr/lib</filename> for dynamic libraries that are
172    needed by programs as they are run. However, if there are libraries in
173    directories other than <filename class="directory">/lib</filename> and
174    <filename class="directory">/usr/lib</filename>, these need to be
175    added to the <filename>/etc/ld.so.conf</filename> file in order
176    for the dynamic loader to find them. Two directories that are commonly
177    known to contain additional libraries are <filename
178    class="directory">/usr/local/lib</filename> and <filename
179    class="directory">/opt/lib</filename>, so add those directories to the
180    dynamic loader's search path.</para>
181
182    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
183    href="../common/eglibc.xml"
184    xpointer="xpointer(//*[@os='ld-b'])"/>
185
186    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
187    href="../common/eglibc.xml"
188    xpointer="xpointer(//*[@os='ld-c'])"/>
189
190  </sect2>
191
192  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
193  href="../common/eglibc.xml"
194  xpointer="xpointer(id('contents-eglibc'))"/>
195
196</sect1>
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