source: BOOK/cross-tools/common/gcc-static.xml @ c63c0da

clfs-1.2clfs-2.1clfs-3.0.0-systemdclfs-3.0.0-sysvinitsystemdsysvinit
Last change on this file since c63c0da was c63c0da, checked in by Jim Gifford <clfs@…>, 15 years ago

Fixes to new gcc config

  • Property mode set to 100644
File size: 5.4 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-cross-tools-gcc-static" role="wrap">
9  <?dbhtml filename="gcc-static.html"?>
10
11  <title>Cross GCC-&gcc-version; - Static</title>
12
13  <indexterm zone="ch-cross-tools-gcc-static">
14    <primary sortas="a-GCC">GCC</primary>
15    <secondary>cross tools, static</secondary>
16  </indexterm>
17
18  <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
19  href="../../final-system/common/gcc.xml"
20  xpointer="xpointer(//*[@role='package'])"/>
21
22  <sect2 role="installation">
23    <title>Installation of Cross GCC Compiler with Static libgcc
24    and no Threads</title>
25
26    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
27    href="../../final-system/common/gcc.xml"
28    xpointer="xpointer(//*[@os='p1'])"/>
29
30    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
31    href="../../final-system/common/gcc.xml"
32    xpointer="xpointer(//*[@os='p2'])"/>
33
34    <para os="aa">Make a couple of essential adjustments to the specs file
35    to ensure GCC uses our build environment:</para>
36
37<screen os="ab"><userinput>patch -Np1 -i ../&gcc-specs-patch;</userinput></screen>
38
39    <para os="ac">To make sure that a couple of tools use the proper syntax,
40    apply the following patch:</para>
41
42<screen os="ad"><userinput>patch -Np1 -i ../&gcc-posix-patch;</userinput></screen>
43
44    <para os="s1">We will change the search locations from / to /tools:</para>
45
46<screen os="s2"><userinput>for file in $(find gcc/config -name linux64.h -o -name linux.h); do
47cp -v ${file}{,.orig}
48sed -e 's@/lib@/tools/lib@g' ${file}.orig > $file
49done"</userinput></screen>
50
51    <para os="ag">Change the StartFile Spec to point to the correct library
52    location:</para>
53
54<screen os="ah"><userinput>for file in $(find gcc/config -name linux64.h -o -name linux.h); do
55echo "
56#undef STANDARD_STARTFILE_PREFIX_1
57#undef STANDARD_STARTFILE_PREFIX_2
58#define STANDARD_STARTFILE_PREFIX_1 \"/tools/lib/\"
59#define STANDARD_STARTFILE_PREFIX_2 \"\"" &gt;&gt; ${file}</userinput></screen>
60
61    <para os="ai">Now alter <command>gcc</command>'s c preprocessor's default
62    include search path to use <filename class="directory">/tools</filename> only:</para>
63
64<screen os="aj"><userinput>cp -v gcc/Makefile.in{,.orig}
65sed -e "s@\(^CROSS_SYSTEM_HEADER_DIR =\).*@\1 /tools/include@g" \
66    gcc/Makefile.in.orig &gt; gcc/Makefile.in</userinput></screen>
67
68    <para os="t1">We will create a dummy limits.h so the build will not use the one
69    provided by the host distro:</para>
70
71<screen os="t2"><userinput>touch /tools/include/limits.h</userinput></screen>
72
73    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
74    href="../../final-system/common/gcc.xml"
75    xpointer="xpointer(//*[@os='f'])"/>
76
77    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
78    href="../../final-system/common/gcc.xml"
79    xpointer="xpointer(//*[@os='g'])"/>
80
81    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
82    href="../../final-system/common/gcc.xml"
83    xpointer="xpointer(//*[@os='h'])"/>
84
85<screen os="al"><userinput>AR=ar LDFLAGS="-Wl,-rpath,/cross-tools/lib" \
86    ../gcc-&gcc-version;/configure --prefix=/cross-tools \
87    --build=${CLFS_HOST} --host=${CLFS_HOST} --target=${CLFS_TARGET} \
88    --disable-multilib --with-local-prefix=/tools --disable-nls \
89    --without-headers --with-newlib --disable-decimal-float \
90    --with-mpfr=/cross-tools --with-gmp=/cross-tools \
91    --disable-libgomp --disable-libmudflap --disable-libssp \
92    --disable-shared --disable-threads --enable-languages=c</userinput></screen>
93
94    <variablelist os="am">
95      <title>The meaning of the configure options:</title>
96
97     <varlistentry>
98        <term><parameter>--with-local-prefix=/tools</parameter></term>
99        <listitem>
100          <para>The purpose of this switch is to remove <filename
101          class="directory">/usr/local/include</filename> from
102          <command>gcc</command>'s include search path. This is not
103          absolutely essential, however, it helps to minimize the
104          influence of the host system.</para>
105        </listitem>
106      </varlistentry>
107
108      <varlistentry>
109        <term><parameter>--disable-shared</parameter></term>
110        <listitem>
111          <para>Disables the creation of the shared libraries.</para>
112        </listitem>
113      </varlistentry>
114
115      <varlistentry>
116        <term><parameter>--disable-threads</parameter></term>
117        <listitem>
118          <para>This will prevent GCC from looking for the multi-thread
119          include files, since they haven't been created for this architecture
120          yet. GCC will be able to find the multi-thread information after
121          the Glibc headers are created.</para>
122        </listitem>
123      </varlistentry>
124
125      <varlistentry>
126        <term><parameter>--enable-languages=c</parameter></term>
127        <listitem>
128          <para>This option ensures that only the C compiler is built.</para>
129        </listitem>
130      </varlistentry>
131
132    </variablelist>
133
134    <para os="an">Continue with compiling the package:</para>
135
136<screen os="ao"><userinput>make</userinput></screen>
137
138    <para os="ap">Install the package:</para>
139
140<screen os="aq"><userinput>make install</userinput></screen>
141
142  </sect2>
143
144  <sect2 role="content">
145    <title/>
146
147    <para>Details on this package are located in <xref
148    linkend="contents-gcc" role="."/></para>
149
150  </sect2>
151
152</sect1>
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