source: BOOK/cross-tools/common/gcc-static.xml @ 4651341

clfs-1.2clfs-2.1clfs-3.0.0-systemdclfs-3.0.0-sysvinitsystemdsysvinit
Last change on this file since 4651341 was 4651341, checked in by Jim Gifford <clfs@…>, 10 years ago

Change gcc-static to shorten build time

  • 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
35    <filename>specs</filename> file to ensure GCC uses our build
36    environment:</para>
37
38<screen os="ab"><userinput>patch -Np1 -i ../&gcc-specs-patch;</userinput></screen>
39
40    <para os="ac">To make sure that a couple of tools use the proper syntax,
41    apply the following patch:</para>
42
43<screen os="ad"><userinput>patch -Np1 -i ../&gcc-posix-patch;</userinput></screen>
44
45    <para os="ag">Change the StartFile Spec and Standard Include Dir so that
46    GCC looks in <filename class="directory">/tools</filename>:</para>
47
48<screen os="ah"><userinput>echo -en '#undef STANDARD_INCLUDE_DIR\n#define STANDARD_INCLUDE_DIR "/tools/include/"\n\n' >> gcc/config/linux.h
49echo -en '\n#undef STANDARD_STARTFILE_PREFIX_1\n#define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/"\n' >> gcc/config/linux.h
50echo -en '\n#undef STANDARD_STARTFILE_PREFIX_2\n#define STANDARD_STARTFILE_PREFIX_2 ""\n' >> gcc/config/linux.h</userinput></screen>
51
52    <para os="ai">Now alter <command>gcc</command>'s c preprocessor's default
53    include search path to use <filename class="directory">/tools</filename> only:</para>
54
55<screen os="aj"><userinput>cp -v gcc/Makefile.in{,.orig}
56sed -e "s@\(^CROSS_SYSTEM_HEADER_DIR =\).*@\1 /tools/include@g" \
57    gcc/Makefile.in.orig &gt; gcc/Makefile.in</userinput></screen>
58
59    <para os="t1">We will create a dummy <filename>limits.h</filename> so
60    the build will not use the one provided by the host distro:</para>
61
62<screen os="t2"><userinput>touch /tools/include/limits.h</userinput></screen>
63
64    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
65    href="../../final-system/common/gcc.xml"
66    xpointer="xpointer(//*[@os='f'])"/>
67
68    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
69    href="../../final-system/common/gcc.xml"
70    xpointer="xpointer(//*[@os='g'])"/>
71
72    <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
73    href="../../final-system/common/gcc.xml"
74    xpointer="xpointer(//*[@os='h'])"/>
75
76<screen os="al"><userinput>AR=ar LDFLAGS="-Wl,-rpath,/cross-tools/lib" \
77  ../gcc-&gcc-version;/configure --prefix=/cross-tools \
78  --build=${CLFS_HOST} --host=${CLFS_HOST} --target=${CLFS_TARGET} \
79  --with-sysroot=${CLFS} --with-local-prefix=/tools --disable-nls \
80  --disable-shared --with-mpfr=/cross-tools --with-gmp=/cross-tools \
81  --without-headers --with-newlib --disable-decimal-float \
82  --disable-libgomp --disable-libmudflap --disable-libssp \
83  --disable-threads --enable-languages=c --disable-multilib</userinput></screen>
84
85    <variablelist os="am">
86      <title>The meaning of the configure options:</title>
87
88     <varlistentry>
89        <term><parameter>--with-local-prefix=/tools</parameter></term>
90        <listitem>
91          <para>The purpose of this switch is to remove <filename
92          class="directory">/usr/local/include</filename> from
93          <command>gcc</command>'s include search path. This is not
94          absolutely essential, however, it helps to minimize the
95          influence of the host system.</para>
96        </listitem>
97      </varlistentry>
98
99      <varlistentry>
100        <term><parameter>--disable-shared</parameter></term>
101        <listitem>
102          <para>Disables the creation of the shared libraries.</para>
103        </listitem>
104      </varlistentry>
105
106      <varlistentry>
107        <term><parameter>--disable-threads</parameter></term>
108        <listitem>
109          <para>This will prevent GCC from looking for the multi-thread
110          include files, since they haven't been created for this architecture
111          yet. GCC will be able to find the multi-thread information after
112          the Glibc headers are created.</para>
113        </listitem>
114      </varlistentry>
115
116      <varlistentry>
117        <term><parameter>--enable-languages=c</parameter></term>
118        <listitem>
119          <para>This option ensures that only the C compiler is built.</para>
120        </listitem>
121      </varlistentry>
122
123    </variablelist>
124
125    <para os="an">Continue with compiling the package:</para>
126
127<screen os="ao"><userinput>make all-gcc all-target-libgcc</userinput></screen>
128
129    <para os="ap">Install the package:</para>
130
131<screen os="aq"><userinput>make install-gcc install-target-libgcc</userinput></screen>
132
133  </sect2>
134
135  <sect2 role="content">
136    <title/>
137
138    <para>Details on this package are located in <xref
139    linkend="contents-gcc" role="."/></para>
140
141  </sect2>
142
143</sect1>
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