[3f8be484] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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[aa18ac0] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ |
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[3f8be484] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent"> |
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| 5 | %general-entities; |
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| 6 | ]> |
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| 7 | |
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[093b0e8] | 8 | <sect1 id="ch-system-eglibc" role="wrap"> |
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| 9 | <?dbhtml filename="eglibc.html"?> |
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[3f8be484] | 10 | |
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[093b0e8] | 11 | <title>EGLIBC-&eglibc-version;</title> |
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[3f8be484] | 12 | |
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[093b0e8] | 13 | <indexterm zone="ch-system-eglibc"> |
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| 14 | <primary sortas="a-EGLIBC">EGLIBC</primary> |
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[3f8be484] | 15 | </indexterm> |
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| 16 | |
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[dabbced] | 17 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 18 | href="../common/eglibc.xml" |
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[7dfa1a8] | 19 | xpointer="xpointer(//*[@role='package'])"/> |
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[3f8be484] | 20 | |
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| 21 | <sect2 role="installation"> |
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[093b0e8] | 22 | <title>Installation of EGLIBC</title> |
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[3f8be484] | 23 | |
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[dabbced] | 24 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 25 | href="../common/eglibc.xml" |
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[82f7fed] | 26 | xpointer="xpointer(//*[@os='z'])"/> |
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[3f8be484] | 27 | |
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[dabbced] | 28 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[22cd957] | 29 | href="../common/eglibc.xml" |
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| 30 | xpointer="xpointer(//*[@os='l1'])"/> |
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| 31 | |
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| 32 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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| 33 | href="../common/eglibc.xml" |
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| 34 | xpointer="xpointer(//*[@os='l2'])"/> |
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| 35 | |
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| 36 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[d8f87e8] | 37 | href="../common/eglibc.xml" |
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[c0bc7c4] | 38 | xpointer="xpointer(//*[@os='l3'])"/> |
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[d8f87e8] | 39 | |
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[dabbced] | 40 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[d8f87e8] | 41 | href="../common/eglibc.xml" |
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[c0bc7c4] | 42 | xpointer="xpointer(//*[@os='l4'])"/> |
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[57b3f19] | 43 | |
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| 44 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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| 45 | href="../common/eglibc.xml" |
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| 46 | xpointer="xpointer(//*[@os='p3'])"/> |
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| 47 | |
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| 48 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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| 49 | href="../common/eglibc.xml" |
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| 50 | xpointer="xpointer(//*[@os='p4'])"/> |
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[d8f87e8] | 51 | |
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[dabbced] | 52 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 53 | href="../common/eglibc.xml" |
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[3f8be484] | 54 | xpointer="xpointer(//*[@os='b'])"/> |
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| 55 | |
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[dabbced] | 56 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 57 | href="../common/eglibc.xml" |
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[3f8be484] | 58 | xpointer="xpointer(//*[@os='e'])"/> |
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| 59 | |
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[dabbced] | 60 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 61 | href="../common/eglibc.xml" |
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[3f8be484] | 62 | xpointer="xpointer(//*[@os='f'])"/> |
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| 63 | |
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[093b0e8] | 64 | <para os="l1">Tell EGLIBC to install its libraries into |
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[3f8be484] | 65 | <filename class="directory">/lib</filename>:</para> |
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| 66 | |
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[52e5dd9] | 67 | <screen os="l2"><userinput>echo "slibdir=/lib" >> configparms</userinput></screen> |
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[3f8be484] | 68 | |
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[dabbced] | 69 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 70 | href="../common/eglibc.xml" |
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[3f8be484] | 71 | xpointer="xpointer(//*[@os='g'])"/> |
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| 72 | |
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[35543b7] | 73 | <screen os="h"><userinput>CFLAGS="-mtune=generic -g -O2" \ |
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[093b0e8] | 74 | ../eglibc-&eglibc-version;/configure --prefix=/usr \ |
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[65ab9ce] | 75 | --disable-profile --enable-add-ons --enable-kernel=2.6.32 \ |
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[093b0e8] | 76 | --libexecdir=/usr/lib/eglibc --libdir=/usr/lib</userinput></screen> |
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[3f8be484] | 77 | |
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[52e5dd9] | 78 | <variablelist os="i"> |
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[3f8be484] | 79 | <title>The meaning of the new configure option:</title> |
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| 80 | |
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| 81 | <varlistentry> |
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[093b0e8] | 82 | <term><parameter>--libexecdir=/usr/lib/eglibc</parameter></term> |
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[3f8be484] | 83 | <listitem> |
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| 84 | <para>This changes the location of the <command>pt_chown</command> |
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| 85 | program from its default of <filename |
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| 86 | class="directory">/usr/libexec</filename> to <filename |
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[093b0e8] | 87 | class="directory">/usr/lib/eglibc</filename>.</para> |
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[3f8be484] | 88 | </listitem> |
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| 89 | </varlistentry> |
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| 90 | </variablelist> |
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| 91 | |
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[dabbced] | 92 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 93 | href="../common/eglibc.xml" |
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[3f8be484] | 94 | xpointer="xpointer(//*[@os='j'])"/> |
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| 95 | |
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[dabbced] | 96 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 97 | href="../common/eglibc.xml" |
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[3f8be484] | 98 | xpointer="xpointer(//*[@os='k'])"/> |
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| 99 | |
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[dabbced] | 100 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 101 | href="../common/eglibc.xml" |
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[3f8be484] | 102 | xpointer="xpointer(//*[@os='l'])"/> |
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| 103 | |
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[dabbced] | 104 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 105 | href="../common/eglibc.xml" |
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[3f8be484] | 106 | xpointer="xpointer(//*[@os='m'])"/> |
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| 107 | |
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[dabbced] | 108 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 109 | href="../multilib/eglibc-64bit.xml" |
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[3f8be484] | 110 | xpointer="xpointer(//*[@os='n'])"/> |
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| 111 | |
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[dabbced] | 112 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 113 | href="../multilib/eglibc-64bit.xml" |
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[3514708] | 114 | xpointer="xpointer(//*[@os='o'])"/> |
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| 115 | |
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[dabbced] | 116 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 117 | href="../multilib/eglibc-64bit.xml" |
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[3514708] | 118 | xpointer="xpointer(//*[@os='p'])"/> |
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| 119 | |
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[dabbced] | 120 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 121 | href="../common/eglibc.xml" |
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[3f8be484] | 122 | xpointer="xpointer(//*[@os='q'])"/> |
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| 123 | |
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[dabbced] | 124 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 125 | href="../common/eglibc.xml" |
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[3f8be484] | 126 | xpointer="xpointer(//*[@os='r'])"/> |
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| 127 | |
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| 128 | <para>The install will finish by checking that everything is correctly installed. |
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[5650fbe] | 129 | Unfortunately, it will test for a multilib installation. On x86_64 Pure64 this means |
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[3f8be484] | 130 | it will try to test the non-existent 32-bit loader which has a different name |
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| 131 | from the 64-bit loader (unlike on other 64-bit architectures). We fool it by |
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| 132 | creating a symlink to the real loader.</para> |
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| 133 | |
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[093b0e8] | 134 | <screen><userinput>ln -sv &eglibc-ld-name; /lib/ld-linux.so.2</userinput></screen> |
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[3f8be484] | 135 | |
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[dabbced] | 136 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 137 | href="../common/eglibc.xml" |
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[3f8be484] | 138 | xpointer="xpointer(//*[@os='s'])"/> |
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| 139 | |
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[dabbced] | 140 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 141 | href="../common/eglibc.xml" |
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[3f8be484] | 142 | xpointer="xpointer(//*[@os='t'])"/> |
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| 143 | |
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| 144 | <para>Now we can remove this symlink. We also need to correct the <command> |
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| 145 | /usr/bin/ldd</command> script - if you look at this, you will see it references |
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| 146 | not only the 32-bit linker, but also /lib64 where it thinks the 64-bit linker |
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[39139e4] | 147 | is. The following <command>sed</command> will correct this:</para> |
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[3f8be484] | 148 | |
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[94e6142] | 149 | <screen><userinput>rm -v /lib/ld-linux.so.2 |
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[d5cf87a3] | 150 | cp -v /usr/bin/ldd{,.bak} |
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| 151 | sed '/RTLDLIST/s%/ld-linux.so.2 /lib64%%' /usr/bin/ldd.bak >/usr/bin/ldd</userinput></screen> |
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[3f8be484] | 152 | |
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| 153 | <para>Check the script to make sure the sed worked correctly, then delete |
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| 154 | the backup.</para> |
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| 155 | |
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[94e6142] | 156 | <screen><userinput>rm -v /usr/bin/ldd.bak</userinput></screen> |
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[3f8be484] | 157 | |
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| 158 | </sect2> |
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| 159 | |
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[dabbced] | 160 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 161 | href="../common/eglibc.xml" |
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| 162 | xpointer="xpointer(id('i18n-eglibc'))"/> |
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[3f8be484] | 163 | |
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[dabbced] | 164 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 165 | href="../common/eglibc.xml" |
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| 166 | xpointer="xpointer(id('conf-eglibc'))"/> |
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[3f8be484] | 167 | |
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[3998188] | 168 | <sect2 id="conf-ld" role="configuration"> |
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| 169 | <title>Configuring The Dynamic Loader</title> |
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| 170 | |
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| 171 | <indexterm zone="conf-ld"> |
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| 172 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary> |
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| 173 | </indexterm> |
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| 174 | |
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| 175 | <para>By default, the dynamic loader (<filename |
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| 176 | class="libraryfile">/lib/ld-linux-x86-64.so.2</filename>) searches through |
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| 177 | <filename class="directory">/lib</filename> and <filename |
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| 178 | class="directory">/usr/lib</filename> for dynamic libraries that are |
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| 179 | needed by programs as they are run. However, if there are libraries in |
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| 180 | directories other than <filename class="directory">/lib</filename> and |
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| 181 | <filename class="directory">/usr/lib</filename>, these need to be |
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| 182 | added to the <filename>/etc/ld.so.conf</filename> file in order |
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| 183 | for the dynamic loader to find them. Two directories that are commonly |
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| 184 | known to contain additional libraries are <filename |
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| 185 | class="directory">/usr/local/lib</filename> and <filename |
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| 186 | class="directory">/opt/lib</filename>, so add those directories to the |
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| 187 | dynamic loader's search path.</para> |
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| 188 | |
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[dabbced] | 189 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 190 | href="../common/eglibc.xml" |
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[3998188] | 191 | xpointer="xpointer(//*[@os='ld-b'])"/> |
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| 192 | |
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[dabbced] | 193 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 194 | href="../common/eglibc.xml" |
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[3998188] | 195 | xpointer="xpointer(//*[@os='ld-c'])"/> |
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| 196 | |
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| 197 | </sect2> |
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[3f8be484] | 198 | |
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[dabbced] | 199 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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[093b0e8] | 200 | href="../common/eglibc.xml" |
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| 201 | xpointer="xpointer(id('contents-eglibc'))"/> |
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[3f8be484] | 202 | |
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| 203 | </sect1> |
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