source: BOOK/cross-tools/common/gcc-static.xml@ 8150908

clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 8150908 was 3e0fdeb, checked in by William Harrington <kb0iic@…>, 12 years ago

Update some package versions and add gcc and binutils branch updates into book.
  • Property mode set to 100644
File size: 8.0 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/2001/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 <para os="p1">The following patch contains a number of updates to the
27 &gcc-version; branch by the GCC developers:</para>
28
29 <screen os="p2"><userinput>patch -Np1 -i ../&gcc-branch_update-patch;</userinput></screen>
30
31 <para os="aa">Make a couple of essential adjustments to the
32 <filename>specs</filename> file to ensure GCC uses our build
33 environment:</para>
34
35<screen os="ab"><userinput>patch -Np1 -i ../&gcc-specs-patch;</userinput></screen>
36
37 <para os="ag">Change the StartFile Spec and Standard Include Dir so that
38 GCC looks in <filename class="directory">/tools</filename>:</para>
39
40<screen os="ah"><userinput>echo -en '#undef STANDARD_INCLUDE_DIR\n#define STANDARD_INCLUDE_DIR "/tools/include/"\n\n' >> gcc/config/linux.h
41echo -en '\n#undef STANDARD_STARTFILE_PREFIX_1\n#define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/"\n' >> gcc/config/linux.h
42echo -en '\n#undef STANDARD_STARTFILE_PREFIX_2\n#define STANDARD_STARTFILE_PREFIX_2 ""\n' >> gcc/config/linux.h</userinput></screen>
43
44 <para os="ai">Now alter <command>gcc</command>'s c preprocessor's default
45 include search path to use <filename class="directory">/tools</filename> only:</para>
46
47<screen os="aj"><userinput>cp -v gcc/Makefile.in{,.orig}
48sed -e "s@\(^CROSS_SYSTEM_HEADER_DIR =\).*@\1 /tools/include@g" \
49 gcc/Makefile.in.orig &gt; gcc/Makefile.in</userinput></screen>
50
51 <para os="t1">We will create a dummy <filename>limits.h</filename> so
52 the build will not use the one provided by the host distro:</para>
53
54<screen os="t2"><userinput>touch /tools/include/limits.h</userinput></screen>
55
56 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
57 href="../../final-system/common/gcc.xml"
58 xpointer="xpointer(//*[@os='f'])"/>
59
60 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
61 href="../../final-system/common/gcc.xml"
62 xpointer="xpointer(//*[@os='g'])"/>
63
64 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
65 href="../../final-system/common/gcc.xml"
66 xpointer="xpointer(//*[@os='h'])"/>
67
68<screen os="al"><userinput>AR=ar LDFLAGS="-Wl,-rpath,/cross-tools/lib" \
69 ../gcc-&gcc-version;/configure --prefix=/cross-tools \
70 --build=${CLFS_HOST} --host=${CLFS_HOST} --target=${CLFS_TARGET} \
71 --with-sysroot=${CLFS} --with-local-prefix=/tools --disable-nls \
72 --disable-shared --with-mpfr=/cross-tools --with-gmp=/cross-tools \
73 --with-ppl=/cross-tools --with-cloog=/cross-tools \
74 --without-headers --with-newlib --disable-decimal-float \
75 --disable-libgomp --disable-libmudflap --disable-libssp \
76 --disable-threads --enable-languages=c --disable-multilib \
77 --enable-cloog-backend=isl</userinput></screen>
78
79 <variablelist os="am">
80 <title>The meaning of the configure options:</title>
81
82 <varlistentry>
83 <term><parameter>--prefix=/cross-tools</parameter></term>
84 <listitem>
85 <para>This tells the configure script to prepare to install the
86 package in the <filename class="directory">/cross-tools</filename>
87 directory.</para>
88 </listitem>
89 </varlistentry>
90
91 <varlistentry>
92 <term><parameter>--host=${CLFS_HOST}</parameter></term>
93 <listitem>
94 <para>When used with --target, this creates a cross-architecture
95 executable that creates files for ${CLFS_TARGET} but runs on ${CLFS_HOST}.</para>
96 </listitem>
97 </varlistentry>
98
99 <varlistentry>
100 <term><parameter>--target=${CLFS_TARGET}</parameter></term>
101 <listitem>
102 <para>When used with --host, this creates a cross-architecture
103 executable that creates files for ${CLFS_TARGET} but runs on ${CLFS_HOST}.</para>
104 </listitem>
105 </varlistentry>
106
107 <varlistentry>
108 <term><parameter>--with-sysroot=${CLFS}</parameter></term>
109 <listitem>
110 <para>Tells GCC to concider ${CLFS} as the root file system.</para>
111 </listitem>
112 </varlistentry>
113
114 <varlistentry>
115 <term><parameter>--with-local-prefix=/tools</parameter></term>
116 <listitem>
117 <para>The purpose of this switch is to remove <filename
118 class="directory">/usr/local/include</filename> from
119 <command>gcc</command>'s include search path. This is not
120 absolutely essential, however, it helps to minimize the
121 influence of the host system.</para>
122 </listitem>
123 </varlistentry>
124
125 <varlistentry>
126 <term><parameter>--disable-nls</parameter></term>
127 <listitem>
128 <para>This disables internationalization as i18n is not needed for the
129 cross-compile tools.</para>
130 </listitem>
131 </varlistentry>
132
133 <varlistentry>
134 <term><parameter>--disable-shared</parameter></term>
135 <listitem>
136 <para>Disables the creation of the shared libraries.</para>
137 </listitem>
138 </varlistentry>
139
140 <varlistentry>
141 <term><parameter>--without-headers</parameter></term>
142 <listitem>
143 <para>Disables GCC from using the target's Libc when cross compiling.</para>
144 </listitem>
145 </varlistentry>
146
147 <varlistentry>
148 <term><parameter>--with-newlib</parameter></term>
149 <listitem>
150 <para>Tells GCC that the target libc will use 'newlib'.</para>
151 </listitem>
152 </varlistentry>
153
154 <varlistentry>
155 <term><parameter>--disable-decimal-float</parameter></term>
156 <listitem>
157 <para>Disables support for the C decimal floating point extension.</para>
158 </listitem>
159 </varlistentry>
160
161 <varlistentry>
162 <term><parameter>--disable-libgomp</parameter></term>
163 <listitem>
164 <para>Disables the creation of runtime libraries used by GOMP.</para>
165 </listitem>
166 </varlistentry>
167
168 <varlistentry>
169 <term><parameter>--disable-libmudflap</parameter></term>
170 <listitem>
171 <para>Disables the creation of runtime libaries used by libmudflap.</para>
172 </listitem>
173 </varlistentry>
174
175 <varlistentry>
176 <term><parameter>--disable-libssp</parameter></term>
177 <listitem>
178 <para>Disables the use of Stack Smashing Protection for runtime libraries.</para>
179 </listitem>
180 </varlistentry>
181
182 <varlistentry>
183 <term><parameter>--disable-threads</parameter></term>
184 <listitem>
185 <para>This will prevent GCC from looking for the multi-thread
186 include files, since they haven't been created for this architecture
187 yet. GCC will be able to find the multi-thread information after
188 the Glibc headers are created.</para>
189 </listitem>
190 </varlistentry>
191
192 <varlistentry>
193 <term><parameter>--enable-languages=c</parameter></term>
194 <listitem>
195 <para>This option ensures that only the C compiler is built.</para>
196 </listitem>
197 </varlistentry>
198
199 </variablelist>
200
201 <para os="an">Continue with compiling the package:</para>
202
203<screen os="ao"><userinput>make all-gcc all-target-libgcc</userinput></screen>
204
205 <para os="ap">Install the package:</para>
206
207<screen os="aq"><userinput>make install-gcc install-target-libgcc</userinput></screen>
208
209 </sect2>
210
211 <sect2 role="content">
212 <title/>
213
214 <para>Details on this package are located in <xref
215 linkend="contents-gcc" role="."/></para>
216
217 </sect2>
218
219</sect1>
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