[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
|
---|
[b06ca36] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
---|
[673b0d8] | 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
|
---|
| 5 | %general-entities;
|
---|
| 6 | ]>
|
---|
[1f7ca93] | 7 |
|
---|
[9652249] | 8 | <sect1 id="ch-tools-glibc" role="wrap">
|
---|
[1f7ca93] | 9 | <?dbhtml filename="glibc.html"?>
|
---|
| 10 |
|
---|
[c11bcb7] | 11 | <sect1info condition="script">
|
---|
| 12 | <productname>glibc</productname>
|
---|
| 13 | <productnumber>&glibc-version;</productnumber>
|
---|
| 14 | <address>&glibc-url;</address>
|
---|
| 15 | </sect1info>
|
---|
| 16 |
|
---|
[1f7ca93] | 17 | <title>Glibc-&glibc-version;</title>
|
---|
| 18 |
|
---|
| 19 | <indexterm zone="ch-tools-glibc">
|
---|
| 20 | <primary sortas="a-Glibc">Glibc</primary>
|
---|
| 21 | <secondary>tools</secondary>
|
---|
| 22 | </indexterm>
|
---|
| 23 |
|
---|
| 24 | <sect2 role="package">
|
---|
| 25 | <title/>
|
---|
[bc82645e] | 26 |
|
---|
[1f7ca93] | 27 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
|
---|
| 28 | href="../chapter06/glibc.xml"
|
---|
| 29 | xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
|
---|
[81fd230] | 30 |
|
---|
[1f7ca93] | 31 | <segmentedlist>
|
---|
| 32 | <segtitle>&buildtime;</segtitle>
|
---|
| 33 | <segtitle>&diskspace;</segtitle>
|
---|
[673b0d8] | 34 |
|
---|
[1f7ca93] | 35 | <seglistitem>
|
---|
[e4a5635] | 36 | <seg>&glibc-ch5-sbu;</seg>
|
---|
| 37 | <seg>&glibc-ch5-du;</seg>
|
---|
[1f7ca93] | 38 | </seglistitem>
|
---|
| 39 | </segmentedlist>
|
---|
[673b0d8] | 40 |
|
---|
[1f7ca93] | 41 | </sect2>
|
---|
[73aedd1d] | 42 |
|
---|
[1f7ca93] | 43 | <sect2 role="installation">
|
---|
| 44 | <title>Installation of Glibc</title>
|
---|
[73aedd1d] | 45 |
|
---|
[1f7ca93] | 46 | <para>The Glibc documentation recommends building Glibc outside of the source
|
---|
| 47 | directory in a dedicated build directory:</para>
|
---|
[3d36131c] | 48 |
|
---|
[2822654] | 49 | <screen><userinput remap="pre">mkdir -v ../glibc-build
|
---|
[73aedd1d] | 50 | cd ../glibc-build</userinput></screen>
|
---|
| 51 |
|
---|
[0b23886] | 52 | <para>Because Glibc no longer supports i386, its developers say to use the
|
---|
| 53 | compiler flag <parameter>-march=i486</parameter> when building it for x86
|
---|
| 54 | machines. There are several ways to accomplish that, but testing shows that
|
---|
| 55 | the flag is best placed inside the build variable <quote>CFLAGS</quote>.
|
---|
| 56 | Instead of overriding completely what Glibc's internal build system uses
|
---|
| 57 | for CFLAGS, append the new flag to the existing contents of CFLAGS by
|
---|
[de89d7c] | 58 | making use of the special file <filename>configparms</filename>. The
|
---|
| 59 | -mtune=native flag is also necessary to reset a reasonable value for -mtune
|
---|
| 60 | that is changed when setting -march.</para>
|
---|
[0b23886] | 61 |
|
---|
[ecdeed2] | 62 | <screen><userinput remap="configure">case `uname -m` in
|
---|
| 63 | i?86) echo "CFLAGS += -march=i486 -mtune=native" > configparms ;;
|
---|
| 64 | esac</userinput></screen>
|
---|
[0b23886] | 65 |
|
---|
[1f7ca93] | 66 | <para>Next, prepare Glibc for compilation:</para>
|
---|
[73aedd1d] | 67 |
|
---|
[2822654] | 68 | <screen><userinput remap="configure">../glibc-&glibc-version;/configure --prefix=/tools \
|
---|
[94aa6621] | 69 | --disable-profile --enable-add-ons \
|
---|
[084db8d] | 70 | --enable-kernel=2.6.0 --with-binutils=/tools/bin \
|
---|
[8e97f32] | 71 | --without-gd --with-headers=/tools/include \
|
---|
[3d31fc4] | 72 | --without-selinux</userinput></screen>
|
---|
[73aedd1d] | 73 |
|
---|
[1f7ca93] | 74 | <variablelist>
|
---|
| 75 | <title>The meaning of the configure options:</title>
|
---|
| 76 |
|
---|
| 77 | <varlistentry>
|
---|
| 78 | <term><parameter>--disable-profile</parameter></term>
|
---|
| 79 | <listitem>
|
---|
| 80 | <para>This builds the libraries without profiling information. Omit
|
---|
| 81 | this option if profiling on the temporary tools is necessary.</para>
|
---|
| 82 | </listitem>
|
---|
| 83 | </varlistentry>
|
---|
| 84 |
|
---|
| 85 | <varlistentry>
|
---|
| 86 | <term><parameter>--enable-add-ons</parameter></term>
|
---|
| 87 | <listitem>
|
---|
| 88 | <para>This tells Glibc to use the NPTL add-on as its threading
|
---|
| 89 | library.</para>
|
---|
| 90 | </listitem>
|
---|
| 91 | </varlistentry>
|
---|
| 92 |
|
---|
| 93 | <varlistentry>
|
---|
| 94 | <term><parameter>--enable-kernel=2.6.0</parameter></term>
|
---|
| 95 | <listitem>
|
---|
| 96 | <para>This tells Glibc to compile the library with support
|
---|
| 97 | for 2.6.x Linux kernels.</para>
|
---|
| 98 | </listitem>
|
---|
| 99 | </varlistentry>
|
---|
| 100 |
|
---|
| 101 | <varlistentry>
|
---|
| 102 | <term><parameter>--with-binutils=/tools/bin</parameter></term>
|
---|
| 103 | <listitem>
|
---|
| 104 | <para>While not required, this switch ensures that there are
|
---|
| 105 | no errors pertaining to which Binutils programs get used during the
|
---|
| 106 | Glibc build.</para>
|
---|
| 107 | </listitem>
|
---|
| 108 | </varlistentry>
|
---|
| 109 |
|
---|
| 110 | <varlistentry>
|
---|
| 111 | <term><parameter>--without-gd</parameter></term>
|
---|
| 112 | <listitem>
|
---|
| 113 | <para>This prevents the build of the <command>memusagestat</command>
|
---|
| 114 | program, which insists on linking against the host's libraries
|
---|
| 115 | (libgd, libpng, libz, etc.).</para>
|
---|
| 116 | </listitem>
|
---|
| 117 | </varlistentry>
|
---|
| 118 |
|
---|
| 119 | <varlistentry>
|
---|
| 120 | <term><parameter>--with-headers=/tools/include</parameter></term>
|
---|
| 121 | <listitem>
|
---|
| 122 | <para>This tells Glibc to compile itself against the headers recently
|
---|
| 123 | installed to the tools directory, so that it knows exactly what
|
---|
| 124 | features the kernel has and can optimize itself accordingly.</para>
|
---|
| 125 | </listitem>
|
---|
| 126 | </varlistentry>
|
---|
| 127 |
|
---|
| 128 | <varlistentry>
|
---|
| 129 | <term><parameter>--without-selinux</parameter></term>
|
---|
| 130 | <listitem>
|
---|
| 131 | <para>When building from hosts that include SELinux functionality
|
---|
| 132 | (e.g., Fedora Core 3), Glibc will build with support for SELinux.
|
---|
| 133 | As the LFS tools environment does not contain support for SELinux, a
|
---|
| 134 | Glibc compiled with such support will fail to operate correctly.</para>
|
---|
| 135 | </listitem>
|
---|
| 136 | </varlistentry>
|
---|
| 137 |
|
---|
| 138 | </variablelist>
|
---|
| 139 |
|
---|
| 140 | <para>During this stage the following warning might appear:</para>
|
---|
| 141 |
|
---|
| 142 | <blockquote>
|
---|
| 143 | <screen><computeroutput>configure: WARNING:
|
---|
| 144 | *** These auxiliary programs are missing or
|
---|
[81fd230] | 145 | *** incompatible versions: msgfmt
|
---|
| 146 | *** some features will be disabled.
|
---|
[1f7ca93] | 147 | *** Check the INSTALL file for required versions.</computeroutput></screen>
|
---|
| 148 | </blockquote>
|
---|
[81fd230] | 149 |
|
---|
[1f7ca93] | 150 | <para>The missing or incompatible <command>msgfmt</command> program is
|
---|
| 151 | generally harmless, but it can sometimes cause issues when running the
|
---|
| 152 | test suite. This <command>msgfmt</command> program is part of the
|
---|
| 153 | Gettext package which the host distribution should provide. If
|
---|
| 154 | <command>msgfmt</command> is present but deemed incompatible, upgrade
|
---|
| 155 | the host system's Gettext package or continue without it and see if
|
---|
| 156 | the test suite runs without problems regardless.</para>
|
---|
[81fd230] | 157 |
|
---|
[1f7ca93] | 158 | <para>Compile the package:</para>
|
---|
[73aedd1d] | 159 |
|
---|
[2822654] | 160 | <screen><userinput remap="make">make</userinput></screen>
|
---|
[73aedd1d] | 161 |
|
---|
[1f7ca93] | 162 | <para>Compilation is now complete. As mentioned earlier, running the
|
---|
| 163 | test suites for the temporary tools installed in this chapter is not
|
---|
| 164 | mandatory. To run the Glibc test suite (if desired), the following
|
---|
| 165 | command will do so:</para>
|
---|
[3d36131c] | 166 |
|
---|
[2822654] | 167 | <screen><userinput remap="test">make check</userinput></screen>
|
---|
[73aedd1d] | 168 |
|
---|
[1f7ca93] | 169 | <para>For a discussion of test failures that are of particular
|
---|
| 170 | importance, please see <xref linkend="ch-system-glibc" role="."/></para>
|
---|
[81fd230] | 171 |
|
---|
[1f7ca93] | 172 | <para>In this chapter, some tests can be adversely affected by
|
---|
| 173 | existing tools or environmental issues on the host system. Glibc test
|
---|
| 174 | suite failures in this chapter are typically not worrisome. The Glibc
|
---|
| 175 | installed in <xref linkend="chapter-building-system"/> is the one that
|
---|
| 176 | will ultimately end up being used, so that is the one that needs to pass
|
---|
| 177 | most tests (even in <xref linkend="chapter-building-system"/>, some
|
---|
| 178 | failures could still occur, for example, with the math tests).</para>
|
---|
[81fd230] | 179 |
|
---|
[1f7ca93] | 180 | <para>When experiencing a failure, make a note of it, then continue by
|
---|
| 181 | reissuing the <command>make check</command> command. The test suite
|
---|
| 182 | should pick up where it left off and continue. This stop-start sequence
|
---|
| 183 | can be circumvented by issuing a <command>make -k check</command> command.
|
---|
| 184 | If using this option, be sure to log the output so that the log file can
|
---|
| 185 | be examined for failures later.</para>
|
---|
[81fd230] | 186 |
|
---|
[1f7ca93] | 187 | <para>The install stage of Glibc will issue a harmless warning at the
|
---|
| 188 | end about the absence of <filename>/tools/etc/ld.so.conf</filename>.
|
---|
| 189 | Prevent this warning with:</para>
|
---|
[d878ce3] | 190 |
|
---|
[2822654] | 191 | <screen><userinput remap="install">mkdir -v /tools/etc
|
---|
[1caa48e] | 192 | touch /tools/etc/ld.so.conf</userinput></screen>
|
---|
| 193 |
|
---|
[1f7ca93] | 194 | <para>Install the package:</para>
|
---|
[73aedd1d] | 195 |
|
---|
[2822654] | 196 | <screen><userinput remap="install">make install</userinput></screen>
|
---|
[73aedd1d] | 197 |
|
---|
[1f7ca93] | 198 | <para>Different countries and cultures have varying conventions for
|
---|
| 199 | how to communicate. These conventions range from the format for
|
---|
| 200 | representing dates and times to more complex issues, such as the
|
---|
| 201 | language spoken. The <quote>internationalization</quote> of GNU
|
---|
| 202 | programs works by locale.</para>
|
---|
[81fd230] | 203 |
|
---|
[1f7ca93] | 204 | <note>
|
---|
| 205 | <para>If the test suites are not being run in this chapter (as per
|
---|
| 206 | the recommendation), there is no need to install the locales now.
|
---|
| 207 | The appropriate locales will be installed in the next chapter.
|
---|
| 208 | To install the Glibc locales anyway, use instructions from
|
---|
| 209 | <xref linkend="ch-system-glibc" role="."/></para>
|
---|
| 210 | </note>
|
---|
[73aedd1d] | 211 |
|
---|
[1f7ca93] | 212 | </sect2>
|
---|
[bc82645e] | 213 |
|
---|
[1f7ca93] | 214 | <sect2 role="content">
|
---|
| 215 | <title/>
|
---|
[81fd230] | 216 |
|
---|
[1f7ca93] | 217 | <para>Details on this package are located in
|
---|
| 218 | <xref linkend="contents-glibc" role="."/></para>
|
---|
| 219 |
|
---|
| 220 | </sect2>
|
---|
[81fd230] | 221 |
|
---|
[1f7ca93] | 222 | </sect1>
|
---|