source: BOOK/cross-tools/common/gcc-static.xml@ 6d564e0

clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 6d564e0 was 52fd35b, checked in by William Harrington <kb0iic@…>, 11 years ago

Enable graphite for cross-tools toolchain.
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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-isl=/cross-tools --with-cloog=/cross-tools --with-mpc=/cross-tools \
62 --without-headers --with-newlib --disable-decimal-float --disable-libgomp \
63 --disable-libmudflap --disable-libssp --disable-threads --disable-multilib \
64 --disable-libatomic --disable-libitm --disable-libsanitizer \
65 --disable-libquadmath --disable-target-libiberty --disable-target-zlib \
66 --with-system-zlib --enable-cloog-backend=isl --disable-cloog-version-check \
67 --disable-isl-version-check --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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