[3f8be484] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" |
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [ |
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| 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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| 8 | <sect1 id="ch-cross-tools-glibc-headers" role="wrap"> |
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| 9 | <?dbhtml filename="glibc-headers.html"?> |
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| 10 | |
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| 11 | <title>Glibc-&glibc-version; Headers</title> |
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| 12 | |
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| 13 | <indexterm zone="ch-cross-tools-glibc-headers"> |
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| 14 | <primary sortas="a-Glibc">Glibc</primary> |
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| 15 | <secondary>cross tools, headers</secondary> |
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| 16 | </indexterm> |
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| 17 | |
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[cf66ceae] | 18 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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| 19 | href="../../final-system/common/glibc.xml" |
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| 20 | xpointer="xpointer(//*[@role='package'])"/> |
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[3f8be484] | 21 | |
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| 22 | <sect2 role="installation"> |
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| 23 | <title>Installation of Glibc Headers</title> |
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| 24 | |
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[7482ad3] | 25 | <para os="s1">The following sed removes a dependency of gcc 3.4.x from |
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| 26 | the glibc we are using in cross-lfs. The reason we are changing it is |
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| 27 | because this only installs the headers, no compiling takes place. In the |
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| 28 | next glibc chapter, we use the gcc that's build right after this chapter.</para> |
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| 29 | |
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[661d1a4] | 30 | <screen os="s2"><userinput>cp -v configure{,.orig} |
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[7482ad3] | 31 | sed -e 's/3.4/3.[0-9]/g' configure.orig > configure</userinput></screen> |
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[3f8be484] | 32 | |
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| 33 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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| 34 | href="../../final-system/common/glibc.xml" |
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| 35 | xpointer="xpointer(//*[@os='e'])"/> |
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| 36 | |
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| 37 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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| 38 | href="../../final-system/common/glibc.xml" |
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| 39 | xpointer="xpointer(//*[@os='f'])"/> |
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| 40 | |
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[c4d5e29] | 41 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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| 42 | href="../common/glibc.xml" |
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| 43 | xpointer="xpointer(//*[@os='dd'])"/> |
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| 44 | |
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[7482ad3] | 45 | <screen os="de"><userinput>echo "libc_cv_forced_unwind=yes" > config.cache |
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| 46 | echo "libc_cv_c_cleanup=yes" >> config.cache |
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| 47 | echo "libc_cv_mlong_double_128=yes" >> config.cache |
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[966d3087] | 48 | echo "libc_cv_alpha_tls=yes" >> config.cache</userinput></screen> |
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[f0ed7ed] | 49 | |
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[3f8be484] | 50 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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| 51 | href="../../final-system/common/glibc.xml" |
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| 52 | xpointer="xpointer(//*[@os='g'])"/> |
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| 53 | |
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[7482ad3] | 54 | <screen os="s3"><userinput>CC=gcc ../glibc-&glibc-version;/configure --prefix=/tools \ |
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| 55 | --host=${LFS_TARGET} --build=${LFS_HOST} \ |
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| 56 | --disable-sanity-checks --enable-kernel=2.6.0 \ |
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| 57 | --with-headers=/tools/include --cache-file=config.cache \ |
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| 58 | --with-binutils=/cross-tools/${LFS_TARGET}/bin</userinput></screen> |
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| 59 | |
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| 60 | <warning os="e1"> |
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| 61 | <para><emphasis>Any</emphasis> error message you see about nptl at this point |
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| 62 | can safely be ignored.</para> |
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| 63 | </warning> |
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| 64 | |
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| 65 | <variablelist os="ca"> |
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| 66 | <title>The meaning of the configure options:</title> |
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| 67 | |
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| 68 | <varlistentry os="ca1"> |
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| 69 | <term><parameter>CC=gcc</parameter></term> |
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| 70 | <listitem> |
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| 71 | <para>Tells GLIBC to use the hosts GCC compiler.</para> |
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| 72 | </listitem> |
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| 73 | </varlistentry> |
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| 74 | |
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| 75 | <varlistentry os="ca2"> |
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| 76 | <term><parameter>--prefix=/tools</parameter></term> |
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| 77 | <listitem> |
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| 78 | <para>This tells the configure script to prepare to install the |
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| 79 | package in the <filename class="directory">/tools</filename> |
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| 80 | directory.</para> |
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| 81 | </listitem> |
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| 82 | </varlistentry> |
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| 83 | |
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| 84 | <varlistentry os="ca3"> |
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| 85 | <term><parameter>--build=${LFS_HOST}</parameter></term> |
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| 86 | <listitem> |
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| 87 | <para>When used with --host, this creates a cross-architecture |
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| 88 | executable that creates files for ${LFS_TARGET} but runs on ${LFS_HOST).</para> |
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| 89 | </listitem> |
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| 90 | </varlistentry> |
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| 91 | |
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| 92 | <varlistentry os="ca4"> |
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| 93 | <term><parameter>--host=${LFS_TARGET}</parameter></term> |
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| 94 | <listitem> |
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| 95 | <para>When used with --build, this creates a cross-architecture |
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| 96 | executable that creates files for ${LFS_TARGET} but runs on ${LFS_HOST).</para> |
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| 97 | </listitem> |
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| 98 | </varlistentry> |
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| 99 | |
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| 100 | <varlistentry os="ca5"> |
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| 101 | <term><parameter>--disable-sanity-checks</parameter></term> |
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| 102 | <listitem> |
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| 103 | <para>This switch disables any checks that are in place.</para> |
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| 104 | </listitem> |
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| 105 | </varlistentry> |
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| 106 | |
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| 107 | <varlistentry os="ca6"> |
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| 108 | <term><parameter>--enable-kernel=2.6.0</parameter></term> |
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| 109 | <listitem> |
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| 110 | <para>This tells Glibc to compile the library with support |
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| 111 | for 2.6.x Linux kernels.</para> |
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| 112 | </listitem> |
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| 113 | </varlistentry> |
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| 114 | |
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| 115 | <varlistentry os="ca7"> |
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| 116 | <term><parameter>--with-headers=/tools/include</parameter></term> |
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| 117 | <listitem> |
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| 118 | <para>This tells Glibc to compile itself against the headers |
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| 119 | recently installed to the <filename class="directory">/tools</filename> |
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| 120 | directory, so that it knows exactly what features the kernel has |
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| 121 | and can optimize itself accordingly.</para> |
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| 122 | </listitem> |
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| 123 | </varlistentry> |
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| 124 | |
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| 125 | <varlistentry os="ca8"> |
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| 126 | <term><parameter>--with-binutils=/cross-tools/${LFS_TARGET}/bin</parameter></term> |
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| 127 | <listitem> |
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| 128 | <para>This tells GLIBC to use the binutils for our specific target architecture.</para> |
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| 129 | </listitem> |
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| 130 | </varlistentry> |
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| 131 | |
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| 132 | </variablelist> |
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| 133 | |
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| 134 | <para os="cb">Now, install the headers:</para> |
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| 135 | |
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| 136 | <screen os="cd"><userinput>make install-headers</userinput></screen> |
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| 137 | |
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| 138 | <para os="ce">Some files aren't installed by the above command, then |
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| 139 | we will copy the header files we need:</para> |
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| 140 | |
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| 141 | <para os="cf">First we will copy a common file over to <filename |
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| 142 | class="directory">/tools/include</filename>:</para> |
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| 143 | |
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[661d1a4] | 144 | <screen os="cg"><userinput>install -dv /tools/include/bits |
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| 145 | cp -v bits/stdio_lim.h /tools/include/bits</userinput></screen> |
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[7482ad3] | 146 | |
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| 147 | <para os="ch">Now we will create a blank stub file:</para> |
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| 148 | |
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| 149 | <screen os="ci"><userinput>touch /tools/include/gnu/stubs.h</userinput></screen> |
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| 150 | |
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| 151 | <para os="cj">For NPTL we use the following command:</para> |
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| 152 | |
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[f729ad2] | 153 | <screen><userinput>cp -v ../glibc-&glibc-version;/nptl/sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h /tools/include/bits/</userinput></screen> |
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[3f8be484] | 154 | |
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| 155 | </sect2> |
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| 156 | |
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| 157 | <sect2 role="content"> |
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| 158 | <title/> |
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| 159 | |
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| 160 | <para>Details on this package are located in <xref |
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| 161 | linkend="contents-glibc" role="."/></para> |
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| 162 | |
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| 163 | </sect2> |
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| 164 | |
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| 165 | </sect1> |
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