[bf8c11f] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
---|
| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" |
---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [ |
---|
| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent"> |
---|
| 5 | %general-entities; |
---|
| 6 | ]> |
---|
| 7 | |
---|
| 8 | <sect1 id="ch-cross-tools-glibc-headers" role="wrap"> |
---|
| 9 | <?dbhtml filename="glibc-headers.html"?> |
---|
| 10 | |
---|
| 11 | <title>Glibc-&glibc-version; Headers</title> |
---|
| 12 | |
---|
| 13 | <indexterm zone="ch-cross-tools-glibc-headers"> |
---|
| 14 | <primary sortas="a-Glibc">Glibc</primary> |
---|
| 15 | <secondary>cross tools, headers</secondary> |
---|
| 16 | </indexterm> |
---|
| 17 | |
---|
[48f8316] | 18 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
---|
| 19 | href="../../final-system/common/glibc.xml" |
---|
| 20 | xpointer="xpointer(//*[@role='package'])"/> |
---|
[bf8c11f] | 21 | |
---|
| 22 | <sect2 role="installation"> |
---|
| 23 | <title>Installation of Glibc Headers</title> |
---|
| 24 | |
---|
| 25 | <para os="s1">The following sed removes a dependency of gcc 3.4.x from |
---|
| 26 | the glibc we are using in cross-lfs. The reason we are changing it is |
---|
| 27 | because this only installs the headers, no compiling takes place. In the |
---|
| 28 | next glibc chapter, we use the gcc that's build right after this chapter.</para> |
---|
| 29 | |
---|
| 30 | <screen os="s2"><userinput>cp configure{,.orig} |
---|
| 31 | sed -e 's/3.4/3.[0-9]/g' configure.orig > configure</userinput></screen> |
---|
| 32 | |
---|
| 33 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
---|
| 34 | href="../../final-system/common/glibc.xml" |
---|
| 35 | xpointer="xpointer(//*[@os='e'])"/> |
---|
| 36 | |
---|
| 37 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
---|
| 38 | href="../../final-system/common/glibc.xml" |
---|
| 39 | xpointer="xpointer(//*[@os='f'])"/> |
---|
| 40 | |
---|
[157894b] | 41 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
---|
| 42 | href="../common/glibc.xml" |
---|
| 43 | xpointer="xpointer(//*[@os='dd'])"/> |
---|
| 44 | |
---|
| 45 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
---|
| 46 | href="../common/glibc.xml" |
---|
| 47 | xpointer="xpointer(//*[@os='de'])"/> |
---|
| 48 | |
---|
[bf8c11f] | 49 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
---|
| 50 | href="../../final-system/common/glibc.xml" |
---|
| 51 | xpointer="xpointer(//*[@os='g'])"/> |
---|
| 52 | |
---|
[c48c555] | 53 | <screen os="s3"><userinput>CC=gcc ../glibc-&glibc-version;/configure --prefix=/tools \ |
---|
[bf8c11f] | 54 | --host=${LFS_TARGET} --build=${LFS_HOST} \ |
---|
| 55 | --disable-sanity-checks --enable-kernel=2.6.0 \ |
---|
[157894b] | 56 | --with-headers=/tools/include --cache-file=config.cache \ |
---|
[bf8c11f] | 57 | --with-binutils=/cross-tools/${LFS_TARGET}/bin</userinput></screen> |
---|
| 58 | |
---|
| 59 | <warning os="e1"> |
---|
[c48c555] | 60 | <para><emphasis>Any</emphasis> error message you see about nptl at this point |
---|
[bf8c11f] | 61 | can safely be ignored.</para> |
---|
| 62 | </warning> |
---|
| 63 | |
---|
| 64 | <variablelist os="ca"> |
---|
| 65 | <title>The meaning of the configure options:</title> |
---|
| 66 | |
---|
[c48c555] | 67 | <varlistentry os="ca1"> |
---|
[bf8c11f] | 68 | <term><parameter>CC=gcc</parameter></term> |
---|
| 69 | <listitem> |
---|
[c48c555] | 70 | <para>Tells GLIBC to use the hosts GCC compiler.</para> |
---|
[bf8c11f] | 71 | </listitem> |
---|
| 72 | </varlistentry> |
---|
| 73 | |
---|
[c48c555] | 74 | <varlistentry os="ca2"> |
---|
[bf8c11f] | 75 | <term><parameter>--prefix=/tools</parameter></term> |
---|
| 76 | <listitem> |
---|
| 77 | <para>This tells the configure script to prepare to install the |
---|
| 78 | package in the <filename class="directory">/tools</filename> |
---|
| 79 | directory.</para> |
---|
| 80 | </listitem> |
---|
| 81 | </varlistentry> |
---|
| 82 | |
---|
[c48c555] | 83 | <varlistentry os="ca3"> |
---|
[6a8671a] | 84 | <term><parameter>--target=${LFS_HOST}</parameter></term> |
---|
[bf8c11f] | 85 | <listitem> |
---|
[6a8671a] | 86 | <para>When used with --host, this creates a cross-architecture |
---|
[c48c555] | 87 | executable that creates files for ${LFS_TARGET} but runs on ${LFS_HOST).</para> |
---|
[bf8c11f] | 88 | </listitem> |
---|
| 89 | </varlistentry> |
---|
| 90 | |
---|
[c48c555] | 91 | <varlistentry os="ca4"> |
---|
[6a8671a] | 92 | <term><parameter>--host=${LFS_TARGET}</parameter></term> |
---|
[bf8c11f] | 93 | <listitem> |
---|
[6a8671a] | 94 | <para>When used with --build, this creates a cross-architecture |
---|
[c48c555] | 95 | executable that creates files for ${LFS_TARGET} but runs on ${LFS_HOST).</para> |
---|
[bf8c11f] | 96 | </listitem> |
---|
| 97 | </varlistentry> |
---|
| 98 | |
---|
[c48c555] | 99 | <varlistentry os="ca5"> |
---|
[bf8c11f] | 100 | <term><parameter>--disable-sanity-checks</parameter></term> |
---|
| 101 | <listitem> |
---|
[c48c555] | 102 | <para>This switch disables any checks that are in place.</para> |
---|
[bf8c11f] | 103 | </listitem> |
---|
| 104 | </varlistentry> |
---|
| 105 | |
---|
[c48c555] | 106 | <varlistentry os="ca6"> |
---|
[bf8c11f] | 107 | <term><parameter>--enable-kernel=2.6.0</parameter></term> |
---|
| 108 | <listitem> |
---|
| 109 | <para>This tells Glibc to compile the library with support |
---|
| 110 | for 2.6.x Linux kernels.</para> |
---|
| 111 | </listitem> |
---|
| 112 | </varlistentry> |
---|
| 113 | |
---|
[c48c555] | 114 | <varlistentry os="ca7"> |
---|
[bf8c11f] | 115 | <term><parameter>--with-headers=/tools/include</parameter></term> |
---|
| 116 | <listitem> |
---|
| 117 | <para>This tells Glibc to compile itself against the headers |
---|
| 118 | recently installed to the <filename class="directory">/tools</filename> |
---|
| 119 | directory, so that it knows exactly what features the kernel has |
---|
| 120 | and can optimize itself accordingly.</para> |
---|
| 121 | </listitem> |
---|
| 122 | </varlistentry> |
---|
| 123 | |
---|
[c48c555] | 124 | <varlistentry os="ca8"> |
---|
[bf8c11f] | 125 | <term><parameter>--with-binutils=/cross-tools/${LFS_TARGET}/bin</parameter></term> |
---|
| 126 | <listitem> |
---|
[c48c555] | 127 | <para>This tells GLIBC to use the binutils for our specific target architecture.</para> |
---|
[bf8c11f] | 128 | </listitem> |
---|
| 129 | </varlistentry> |
---|
| 130 | |
---|
| 131 | </variablelist> |
---|
| 132 | |
---|
| 133 | <para os="cb">Now, install the headers:</para> |
---|
| 134 | |
---|
| 135 | <screen os="cd"><userinput>make install-headers</userinput></screen> |
---|
| 136 | |
---|
| 137 | <para os="ce">Some files aren't installed by the above command, then |
---|
| 138 | we will copy the header files we need:</para> |
---|
| 139 | |
---|
| 140 | <para os="cf">First we will copy a common file over to <filename |
---|
| 141 | class="directory">/tools/include</filename>:</para> |
---|
| 142 | |
---|
| 143 | <screen os="cg"><userinput>install -d /tools/include/bits |
---|
| 144 | cp bits/stdio_lim.h /tools/include/bits</userinput></screen> |
---|
| 145 | |
---|
| 146 | <para os="ch">Now we will create a blank stub file:</para> |
---|
| 147 | |
---|
| 148 | <screen os="ci"><userinput>touch /tools/include/gnu/stubs.h</userinput></screen> |
---|
| 149 | |
---|
| 150 | <para os="cj">For NPTL we use the following command:</para> |
---|
| 151 | |
---|
| 152 | <screen os="ck"><userinput>cp ../glibc-&glibc-version;/nptl/sysdeps/pthread/pthread.h /tools/include/</userinput></screen> |
---|
| 153 | |
---|
| 154 | <para os="cl">Now we copy the architecture specific header over:</para> |
---|
| 155 | |
---|
[c48c555] | 156 | <screen os="cm"><userinput>cp ../glibc-&glibc-version;/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h /tools/include/bits/</userinput></screen> |
---|
[bf8c11f] | 157 | |
---|
| 158 | </sect2> |
---|
| 159 | |
---|
| 160 | <sect2 role="content"> |
---|
| 161 | <title/> |
---|
| 162 | |
---|
| 163 | <para>Details on this package are located in <xref |
---|
| 164 | linkend="contents-glibc" role="."/></para> |
---|
| 165 | |
---|
| 166 | </sect2> |
---|
| 167 | |
---|
| 168 | </sect1> |
---|