source: BOOK/cross-tools/common/gcc-static.xml@ 8000b26

clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 8000b26 was 3d66e17, checked in by Chris Staub <chris@…>, 11 years ago

Use libiberty from GCC instead of Binutils

  • Property mode set to 100644
File size: 8.8 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 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
27 href="../../final-system/common/gcc.xml"
28 xpointer="xpointer(//*[@os='p1'])"/>
29
30 <xi:include xmlns:xi="http://www.w3.org/2001/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="ag">Change the StartFile Spec so that GCC looks in
41<filename class="directory">/tools</filename>:</para>
42
43<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
44echo -en '\n#undef STANDARD_STARTFILE_PREFIX_2\n#define STANDARD_STARTFILE_PREFIX_2 ""\n' >> gcc/config/linux.h</userinput></screen>
45
46 <para os="t1">We will create a dummy <filename>limits.h</filename> so
47 the build will not use the one provided by the host distro:</para>
48
49<screen os="t2"><userinput>touch /tools/include/limits.h</userinput></screen>
50
51 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
52 href="../../final-system/common/gcc.xml"
53 xpointer="xpointer(//*[@os='f'])"/>
54
55 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
56 href="../../final-system/common/gcc.xml"
57 xpointer="xpointer(//*[@os='g'])"/>
58
59 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
60 href="../../final-system/common/gcc.xml"
61 xpointer="xpointer(//*[@os='h'])"/>
62
63<screen os="al"><userinput>AR=ar LDFLAGS="-Wl,-rpath,/cross-tools/lib" \
64 ../gcc-&gcc-version;/configure --prefix=/cross-tools \
65 --build=${CLFS_HOST} --host=${CLFS_HOST} --target=${CLFS_TARGET} \
66 --with-sysroot=${CLFS} --with-local-prefix=/tools \
67 --with-native-system-header-dir=/tools/include --disable-nls \
68 --disable-shared --with-mpfr=/cross-tools --with-gmp=/cross-tools \
69 --with-isl=/cross-tools --with-cloog=/cross-tools --with-mpc=/cross-tools \
70 --without-headers --with-newlib --disable-decimal-float --disable-libgomp \
71 --disable-libmudflap --disable-libssp --disable-threads --disable-multilib \
72 --disable-libatomic --disable-libitm --disable-libsanitizer \
73 --disable-libquadmath --disable-target-zlib \
74 --with-system-zlib --enable-cloog-backend=isl --disable-isl-version-check \
75 --enable-languages=c --enable-checking=release</userinput></screen>
76
77 <variablelist os="am">
78 <title>The meaning of the new configure options:</title>
79
80 <varlistentry>
81 <term><parameter>--with-sysroot=${CLFS}</parameter></term>
82 <listitem>
83 <para>Tells GCC to consider ${CLFS} as the root file system.</para>
84 </listitem>
85 </varlistentry>
86
87 <varlistentry>
88 <term><parameter>--with-local-prefix=/tools</parameter></term>
89 <listitem>
90 <para>The purpose of this switch is to remove <filename
91 class="directory">/usr/local/include</filename> from
92 <command>gcc</command>'s include search path. This is not
93 absolutely essential, however, it helps to minimize the
94 influence of the host system.</para>
95 </listitem>
96 </varlistentry>
97
98
99 <varlistentry>
100 <term><parameter>--with-native-system-headers-dir=/tools/include</parameter></term>
101 <listitem>
102 <para>This switch ensures that GCC will search for the system headers
103 in <filename class="directory">/tools/include</filename> and that
104 host system headers will not be searched.</para>
105 </listitem>
106 </varlistentry>
107
108 <varlistentry>
109 <term><parameter>--disable-nls</parameter></term>
110 <listitem>
111 <para>This disables internationalization as i18n is not needed for the
112 cross-compile tools.</para>
113 </listitem>
114 </varlistentry>
115
116 <varlistentry>
117 <term><parameter>--without-headers</parameter></term>
118 <listitem>
119 <para>Disables GCC from using the target's Libc when cross compiling.</para>
120 </listitem>
121 </varlistentry>
122
123 <varlistentry>
124 <term><parameter>--with-newlib</parameter></term>
125 <listitem>
126 <para>Tells GCC that the target libc will use 'newlib'.</para>
127 </listitem>
128 </varlistentry>
129
130 <varlistentry>
131 <term><parameter>--disable-decimal-float</parameter></term>
132 <listitem>
133 <para>Disables support for the C decimal floating point extension.</para>
134 </listitem>
135 </varlistentry>
136
137 <varlistentry>
138 <term><parameter>--disable-libgomp</parameter></term>
139 <listitem>
140 <para>Disables the creation of runtime libraries used by GOMP.</para>
141 </listitem>
142 </varlistentry>
143
144 <varlistentry>
145 <term><parameter>--disable-libmudflap</parameter></term>
146 <listitem>
147 <para>Disables the creation of runtime libaries used by libmudflap.</para>
148 </listitem>
149 </varlistentry>
150
151 <varlistentry>
152 <term><parameter>--disable-libssp</parameter></term>
153 <listitem>
154 <para>Disables the use of Stack Smashing Protection for runtime libraries.</para>
155 </listitem>
156 </varlistentry>
157
158 <varlistentry>
159 <term><parameter>--disable-threads</parameter></term>
160 <listitem>
161 <para>This will prevent GCC from looking for the multi-thread
162 include files, since they haven't been created for this architecture
163 yet. GCC will be able to find the multi-thread information after
164 the Glibc headers are created.</para>
165 </listitem>
166 </varlistentry>
167
168 <varlistentry>
169 <term><parameter>--disable-libatomic</parameter></term>
170 <listitem>
171 <para>The atomic library isn't needed at this time.</para>
172 </listitem>
173 </varlistentry>
174
175 <varlistentry>
176 <term><parameter>--disable-libitm</parameter></term>
177 <listitem>
178 <para>The itm library isn't neeeded at this tiem.</para>
179 </listitem>
180 </varlistentry>
181
182 <varlistentry>
183 <term><parameter>--disable-libsanitizer</parameter></term>
184 <listitem>
185 <para>The sanitizer library isn't needed at this time.</para>
186 </listitem>
187 </varlistentry>
188
189 <varlistentry>
190 <term><parameter>--disable-libquadmath</parameter></term>
191 <listitem>
192 <para>The quadmath library isn't needed at this time.</para>
193 </listitem>
194 </varlistentry>
195
196 <varlistentry>
197 <term><parameter>--enable-languages=c</parameter></term>
198 <listitem>
199 <para>This option ensures that only the C compiler is built.</para>
200 </listitem>
201 </varlistentry>
202
203 <varlistentry>
204 <term><parameter>--enable-checking=release</parameter></term>
205 <listitem>
206 <para>This option selects the complexity of the internal consistency checks and adds error checking within the compiler.</para>
207 </listitem>
208 </varlistentry>
209
210 </variablelist>
211
212 <para os="an">Continue with compiling the package:</para>
213
214<screen os="ao"><userinput>make all-gcc all-target-libgcc</userinput></screen>
215
216 <variablelist os="ap">
217 <title>The meaning of the new make options:</title>
218
219 <varlistentry>
220 <term><parameter>all-gcc all-target-libgcc</parameter></term>
221 <listitem>
222 <para>Compiles only the parts of GCC that are needed at this time,
223 rather than the full package.</para>
224 </listitem>
225 </varlistentry>
226
227 </variablelist>
228
229 <para os="aq">Install the package:</para>
230
231<screen os="ar"><userinput>make install-gcc install-target-libgcc</userinput></screen>
232
233 <para os="as">Copy <filename class="headerfile">libiberty.h</filename> to
234 <filename class="directory">/tools/include</filename> directory:</para>
235
236<screen os="at"><userinput>cp -v ../gcc-&gcc-version;/include/libiberty.h /tools/include</userinput></screen>
237
238 </sect2>
239
240 <sect2 role="content">
241 <title/>
242
243 <para>Details on this package are located in <xref
244 linkend="contents-gcc" role="."/></para>
245
246 </sect2>
247
248</sect1>
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