source: BOOK/cross-tools/common/gcc-static.xml @ 4dbd276

clfs-2.1clfs-3.0.0-systemdclfs-3.0.0-sysvinitsystemdsysvinit
Last change on this file since 4dbd276 was 4dbd276, checked in by William Harrington <kb0iic@…>, 10 years ago

Update to gcc 4.8.0.

  • Property mode set to 100644
File size: 8.3 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="aa">Make a couple of essential adjustments to the
27    <filename>specs</filename> file to ensure GCC uses our build
28    environment:</para>
29
30<screen os="ab"><userinput>patch -Np1 -i ../&gcc-specs-patch;</userinput></screen>
31
32    <para os="ag">Change the StartFile Spec so that GCC looks in
33<filename class="directory">/tools</filename>:</para>
34
35<screen os="ah"><userinput>echo -en '\n#undef STANDARD_STARTFILE_PREFIX_1\n#define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/"\n' >> gcc/config/linux.h
36echo -en '\n#undef STANDARD_STARTFILE_PREFIX_2\n#define STANDARD_STARTFILE_PREFIX_2 ""\n' >> gcc/config/linux.h</userinput></screen>
37
38    <para os="t1">We will create a dummy <filename>limits.h</filename> so
39    the build will not use the one provided by the host distro:</para>
40
41<screen os="t2"><userinput>touch /tools/include/limits.h</userinput></screen>
42
43    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
44    href="../../final-system/common/gcc.xml"
45    xpointer="xpointer(//*[@os='f'])"/>
46
47    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
48    href="../../final-system/common/gcc.xml"
49    xpointer="xpointer(//*[@os='g'])"/>
50
51    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
52    href="../../final-system/common/gcc.xml"
53    xpointer="xpointer(//*[@os='h'])"/>
54
55<screen os="al"><userinput>AR=ar LDFLAGS="-Wl,-rpath,/cross-tools/lib" \
56  ../gcc-&gcc-version;/configure --prefix=/cross-tools \
57  --build=${CLFS_HOST} --host=${CLFS_HOST} --target=${CLFS_TARGET} \
58  --with-sysroot=${CLFS} --with-local-prefix=/tools \
59  --with-native-system-header-dir=/tools/include --disable-nls \
60  --disable-shared --with-mpfr=/cross-tools --with-gmp=/cross-tools \
61  --with-cloog=/cross-tools --with-mpc=/cross-tools --without-headers \
62  --with-newlib --disable-decimal-float --disable-libgomp --disable-libmudflap \
63  --disable-libssp --disable-threads --disable-multilib --disable-libatomic \
64  --disable-libitm --disable-libsanitizer --disable-libquadmath \
65  --disable-target-libiberty --disable-target-zlib --with-system-zlib \
66  --enable-cloog-backend=isl --disable-cloog-version-check \
67  --enable-languages=c --enable-checking=release</userinput></screen>
68
69    <variablelist os="am">
70      <title>The meaning of the new configure options:</title>
71
72      <varlistentry>
73        <term><parameter>--with-sysroot=${CLFS}</parameter></term>
74        <listitem>
75          <para>Tells GCC to consider ${CLFS} as the root file system.</para>
76        </listitem>
77      </varlistentry>
78
79     <varlistentry>
80        <term><parameter>--with-local-prefix=/tools</parameter></term>
81        <listitem>
82          <para>The purpose of this switch is to remove <filename
83          class="directory">/usr/local/include</filename> from
84          <command>gcc</command>'s include search path. This is not
85          absolutely essential, however, it helps to minimize the
86          influence of the host system.</para>
87        </listitem>
88      </varlistentry>
89
90
91      <varlistentry>
92        <term><parameter>--with-native-system-headers-dir=/tools/include</parameter></term>
93        <listitem>
94          <para>This switch ensures that GCC will search for the system headers
95           in <filename class="directory">/tools/include</filename> and that
96           host system headers will not be searched.</para>
97        </listitem>
98      </varlistentry>
99
100      <varlistentry>
101        <term><parameter>--disable-nls</parameter></term>
102        <listitem>
103          <para>This disables internationalization as i18n is not needed for the
104          cross-compile tools.</para>
105        </listitem>
106      </varlistentry>
107
108      <varlistentry>
109        <term><parameter>--without-headers</parameter></term>
110        <listitem>
111          <para>Disables GCC from using the target's Libc when cross compiling.</para>
112        </listitem>
113      </varlistentry>
114
115      <varlistentry>
116        <term><parameter>--with-newlib</parameter></term>
117        <listitem>
118          <para>Tells GCC that the target libc will use 'newlib'.</para>
119        </listitem>
120      </varlistentry>
121
122      <varlistentry>
123        <term><parameter>--disable-decimal-float</parameter></term>
124        <listitem>
125          <para>Disables support for the C decimal floating point extension.</para>
126        </listitem>
127      </varlistentry>
128
129      <varlistentry>
130        <term><parameter>--disable-libgomp</parameter></term>
131        <listitem>
132          <para>Disables the creation of runtime libraries used by GOMP.</para>
133        </listitem>
134      </varlistentry>
135
136      <varlistentry>
137        <term><parameter>--disable-libmudflap</parameter></term>
138        <listitem>
139          <para>Disables the creation of runtime libaries used by libmudflap.</para>
140        </listitem>
141      </varlistentry>
142
143      <varlistentry>
144        <term><parameter>--disable-libssp</parameter></term>
145        <listitem>
146          <para>Disables the use of Stack Smashing Protection for runtime libraries.</para>
147        </listitem>
148      </varlistentry>
149
150      <varlistentry>
151        <term><parameter>--disable-threads</parameter></term>
152        <listitem>
153          <para>This will prevent GCC from looking for the multi-thread
154          include files, since they haven't been created for this architecture
155          yet. GCC will be able to find the multi-thread information after
156          the Glibc headers are created.</para>
157        </listitem>
158      </varlistentry>
159
160      <varlistentry>
161        <term><parameter>--disable-libatomic</parameter></term>
162        <listitem>
163          <para>The atomic library isn't needed at this time.</para>
164        </listitem>
165      </varlistentry>
166
167      <varlistentry>
168        <term><parameter>--disable-libitm</parameter></term>
169        <listitem>
170          <para>The itm library isn't neeeded at this tiem.</para>
171        </listitem>
172      </varlistentry>
173
174      <varlistentry>
175        <term><parameter>--disable-libsanitizer</parameter></term>
176        <listitem>
177          <para>The sanitizer library isn't needed at this time.</para>
178        </listitem>
179      </varlistentry>
180
181      <varlistentry>
182        <term><parameter>--disable-libquadmath</parameter></term>
183        <listitem>
184          <para>The quadmath library isn't needed at this time.</para>
185        </listitem>
186      </varlistentry>
187
188      <varlistentry>
189        <term><parameter>--enable-languages=c</parameter></term>
190        <listitem>
191          <para>This option ensures that only the C compiler is built.</para>
192        </listitem>
193      </varlistentry>
194
195      <varlistentry>
196        <term><parameter>--enable-checking=release</parameter></term>
197        <listitem>
198          <para>This option selects the complexity of the internal consistency checks and adds error checking within the compiler.</para>
199        </listitem>
200      </varlistentry>
201
202    </variablelist>
203
204    <para os="an">Continue with compiling the package:</para>
205
206<screen os="ao"><userinput>make all-gcc all-target-libgcc</userinput></screen>
207
208    <variablelist os="ap">
209      <title>The meaning of the new make options:</title>
210
211      <varlistentry>
212        <term><parameter>all-gcc all-target-libgcc</parameter></term>
213        <listitem>
214          <para>Compiles only the parts of GCC that are needed at this time,
215          rather than the full package.</para>
216        </listitem>
217      </varlistentry>
218
219    </variablelist>
220
221    <para os="aq">Install the package:</para>
222
223<screen os="ar"><userinput>make install-gcc install-target-libgcc</userinput></screen>
224
225  </sect2>
226
227  <sect2 role="content">
228    <title/>
229
230    <para>Details on this package are located in <xref
231    linkend="contents-gcc" role="."/></para>
232
233  </sect2>
234
235</sect1>
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