source: BOOK/final-system/common/gcc.xml@ 4232f0e

clfs-1.2 clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 4232f0e was 08c058a, checked in by Joe Ciccone <jciccone@…>, 18 years ago

Updated to GCC 4.2.0

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File size: 8.2 KB
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[3f8be484]1<?xml version="1.0" encoding="ISO-8859-1"?>
[aa18ac0]2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
[3f8be484]4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-gcc" role="wrap">
9 <?dbhtml filename="gcc.html"?>
10
11 <title>GCC-&gcc-version;</title>
12
13 <indexterm zone="ch-system-gcc">
14 <primary sortas="a-GCC">GCC</primary>
15 </indexterm>
16
17 <sect2 role="package">
18 <title/>
19
20 <para>The GCC package contains the GNU compiler collection, which includes
21 the C and C++ compilers.</para>
22
23 </sect2>
24
25 <sect2 role="installation">
26 <title>Installation of GCC</title>
27
28 <para os="d">Apply a <command>sed</command> substitution that will suppress the
29 installation of <filename class="libraryfile">libiberty.a</filename>. The
30 version of <filename class="libraryfile">libiberty.a</filename> provided by
31 Binutils will be used instead:</para>
32
33<screen os="e"><userinput>sed -i 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in</userinput></screen>
34
[bcaa438]35 <para os="e1">GCC provides a <command>gccbug</command> script which detects at
36 compile time whether mktemp is present, and hardcodes the result in a test.
[39139e4]37 If mktemp is not found, the script will fall back to using less
38 random names for temporary files. We will be installing mktemp
39 later, so the following sed will simulate its presence:</para>
[bcaa438]40
[de1676e]41<screen os="e2"><userinput>sed -i 's/@have_mktemp_command@/yes/' gcc/gccbug.in</userinput></screen>
[bcaa438]42
[3f8be484]43 <para os="f">The GCC documentation recommends building GCC outside of the source
44 directory in a dedicated build directory:</para>
45
[94e6142]46<screen os="g"><userinput>mkdir -v ../gcc-build
[3f8be484]47cd ../gcc-build</userinput></screen>
48
49 <para os="h">Prepare GCC for compilation:</para>
50
[d55f00bc]51<screen os="i"><userinput>../gcc-&gcc-version;/configure --prefix=/usr \
[3f8be484]52 --libexecdir=/usr/lib --enable-shared --enable-threads=posix \
53 --enable-__cxa_atexit --enable-c99 --enable-long-long \
[43f3140]54 --enable-clocale=gnu --enable-languages=c,c++ \
[a1a0762]55 --disable-multilib --disable-libstdcxx-pch</userinput></screen>
[3f8be484]56
[d55f00bc]57 <para os="j">Compile the package:</para>
[3f8be484]58
[450a4e5]59<screen os="k"><userinput>make bootstrap</userinput></screen>
[3f8be484]60
[d55f00bc]61 <important os="l">
[121c48a]62 <para>The test suite for GCC is considered
[3f8be484]63 critical. Do not skip it under any circumstance.</para>
64 </important>
65
[d55f00bc]66 <para os="m">Test the results, but do not stop at errors:</para>
[3f8be484]67
[d55f00bc]68<screen os="n"><userinput>make -k check</userinput></screen>
[3f8be484]69
[d55f00bc]70 <para os="o">The <parameter>-k</parameter> flag is used to make the test suite
[3f8be484]71 run through to completion and not stop at the first failure. The GCC test
72 suite is very comprehensive and is almost guaranteed to generate a few
73 failures. To receive a summary of the test suite results, run:</para>
74
[d55f00bc]75<screen os="p"><userinput>../gcc-&gcc-version;/contrib/test_summary</userinput></screen>
[3f8be484]76
[d55f00bc]77 <para os="q">For only the summaries, pipe the output through
[3f8be484]78 <userinput>grep -A7 Summ</userinput>.</para>
79
80 <para os="r">A few unexpected failures cannot always be avoided. The
81 GCC developers are usually aware of these issues, but have not
[d55f00bc]82 resolved them yet.</para>
[3f8be484]83
84 <para os="s">Install the package:</para>
85
86<screen os="t"><userinput>make install</userinput></screen>
87
88 <para os="u">Some packages expect the C preprocessor to be installed in the
89 <filename class="directory">/lib</filename> directory.
90 To support those packages, create this symlink:</para>
91
[94e6142]92<screen os="v"><userinput>ln -sv ../usr/bin/cpp /lib</userinput></screen>
[3f8be484]93
94 <para os="w">Many packages use the name <command>cc</command> to call the C
95 compiler. To satisfy those packages, create a symlink:</para>
96
[94e6142]97<screen os="x"><userinput>ln -sv gcc /usr/bin/cc</userinput></screen>
[3f8be484]98
99 </sect2>
100
101 <sect2 id="contents-gcc" role="content">
102 <title>Contents of GCC</title>
103
104 <segmentedlist>
105 <segtitle>Installed programs</segtitle>
106 <segtitle>Installed libraries</segtitle>
107
108 <seglistitem>
109 <seg>c++, cc (link to gcc), cpp, g++, gcc, gccbug, and gcov</seg>
[d55f00bc]110 <seg>libgcc.a, libgcc_eh.a, libgcc_s.so, libmudflap.[a,so],
111 libmudflapth.[a,so], libstdc++.[a,so], and
[3f8be484]112 libsupc++.a</seg>
113 </seglistitem>
114 </segmentedlist>
115
116 <variablelist>
117 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
118 <?dbfo list-presentation="list"?>
119 <?dbhtml list-presentation="table"?>
120
121 <varlistentry id="cc">
122 <term><command>cc</command></term>
123 <listitem>
124 <para>The C compiler</para>
125 <indexterm zone="ch-system-gcc cc">
126 <primary sortas="b-cc">cc</primary>
127 </indexterm>
128 </listitem>
129 </varlistentry>
130
131 <varlistentry id="cpp">
132 <term><command>cpp</command></term>
133 <listitem>
134 <para>The C preprocessor; it is used by the compiler to expand the
135 #include, #define, and similar statements in the source files</para>
136 <indexterm zone="ch-system-gcc cpp">
137 <primary sortas="b-cpp">cpp</primary>
138 </indexterm>
139 </listitem>
140 </varlistentry>
141
142 <varlistentry id="c">
143 <term><command>c++</command></term>
144 <listitem>
145 <para>The C++ compiler</para>
146 <indexterm zone="ch-system-gcc c">
147 <primary sortas="b-c++">c++</primary>
148 </indexterm>
149 </listitem>
150 </varlistentry>
151
152 <varlistentry id="g">
153 <term><command>g++</command></term>
154 <listitem>
155 <para>The C++ compiler</para>
156 <indexterm zone="ch-system-gcc g">
157 <primary sortas="b-g++">g++</primary>
158 </indexterm>
159 </listitem>
160 </varlistentry>
161
162 <varlistentry id="gcc">
163 <term><command>gcc</command></term>
164 <listitem>
165 <para>The C compiler</para>
166 <indexterm zone="ch-system-gcc gcc">
167 <primary sortas="b-gcc">gcc</primary>
168 </indexterm>
169 </listitem>
170 </varlistentry>
171
172 <varlistentry id="gccbug">
173 <term><command>gccbug</command></term>
174 <listitem>
175 <para>A shell script used to help create useful bug reports</para>
176 <indexterm zone="ch-system-gcc gccbug">
177 <primary sortas="b-gccbug">gccbug</primary>
178 </indexterm>
179 </listitem>
180 </varlistentry>
181
182 <varlistentry id="gcov">
183 <term><command>gcov</command></term>
184 <listitem>
185 <para>A coverage testing tool; it is used to analyze programs to
186 determine where optimizations will have the most effect</para>
187 <indexterm zone="ch-system-gcc gcov">
188 <primary sortas="b-gcov">gcov</primary>
189 </indexterm>
190 </listitem>
191 </varlistentry>
192
193 <varlistentry id="libgcc">
194 <term><filename class="libraryfile">libgcc</filename></term>
195 <listitem>
196 <para>Contains run-time support for <command>gcc</command></para>
197 <indexterm zone="ch-system-gcc libgcc">
198 <primary sortas="c-libgcc*">libgcc*</primary>
199 </indexterm>
200 </listitem>
201 </varlistentry>
202
[12a457e]203 <varlistentry id="libmudflap">
204 <term><filename class="libraryfile">libmudflap</filename></term>
205 <listitem>
206 <para>The libmudflap libraries are used by GCC for instrumenting
[3bec8f3]207 pointer and array dereferencing operations.</para>
[12a457e]208 <indexterm zone="ch-system-gcc libmudflap">
209 <primary sortas="c-libmudflap*">libmudflap*</primary>
210 </indexterm>
211 </listitem>
212 </varlistentry>
213
[3f8be484]214 <varlistentry id="libstdc">
215 <term><filename class="libraryfile">libstdc++</filename></term>
216 <listitem>
217 <para>The standard C++ library</para>
218 <indexterm zone="ch-system-gcc libstdc">
219 <primary sortas="c-libstdc++">libstdc++</primary>
220 </indexterm>
221 </listitem>
222 </varlistentry>
223
224 <varlistentry id="libsupc">
225 <term><filename class="libraryfile">libsupc++</filename></term>
226 <listitem>
227 <para>Provides supporting routines for the C++ programming
228 language</para>
229 <indexterm zone="ch-system-gcc libsupc">
230 <primary sortas="c-libsupc++">libsupc++</primary>
231 </indexterm>
232 </listitem>
233 </varlistentry>
234
235 </variablelist>
236
237 </sect2>
238
239</sect1>
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