source: BOOK/final-system/common/gcc.xml@ 5b4b253

clfs-1.2 clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 5b4b253 was d8a6c15, checked in by Joe Ciccone <jciccone@…>, 18 years ago

Added the PR20425 patch to all final system builds of gcc.

  • Property mode set to 100644
File size: 8.6 KB
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3 "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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="p1">The following patch fixes the searching of multilib dirs
29 for specs file. The patch standardizes the gcc drivers path iteration
30 functions, ensuring multilib directories are searched in the correct
31 order. This fixes various issues, most noticably with libtool on
32 multilib systems:</para>
33
34<screen os="p2"><userinput>patch -Np1 -i ../&gcc-PR20425-patch;</userinput></screen>
35
36 <para os="d">Apply a <command>sed</command> substitution that will suppress the
37 installation of <filename class="libraryfile">libiberty.a</filename>. The
38 version of <filename class="libraryfile">libiberty.a</filename> provided by
39 Binutils will be used instead:</para>
40
41<screen os="e"><userinput>sed -i 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in</userinput></screen>
42
43 <para os="e1">GCC provides a <command>gccbug</command> script which detects at
44 compile time whether mktemp is present, and hardcodes the result in a test.
45 If mktemp is not found, the script will fall back to using less
46 random names for temporary files. We will be installing mktemp
47 later, so the following sed will simulate its presence:</para>
48
49<screen os="e2"><userinput>sed -i 's/@have_mktemp_command@/yes/' gcc/gccbug.in</userinput></screen>
50
51 <para os="f">The GCC documentation recommends building GCC outside of the source
52 directory in a dedicated build directory:</para>
53
54<screen os="g"><userinput>mkdir -v ../gcc-build
55cd ../gcc-build</userinput></screen>
56
57 <para os="h">Prepare GCC for compilation:</para>
58
59<screen os="i"><userinput>../gcc-&gcc-version;/configure --prefix=/usr \
60 --libexecdir=/usr/lib --enable-shared --enable-threads=posix \
61 --enable-__cxa_atexit --enable-c99 --enable-long-long \
62 --enable-clocale=gnu --enable-languages=c,c++ \
63 --disable-multilib --disable-libstdcxx-pch</userinput></screen>
64
65 <para os="j">Compile the package:</para>
66
67<screen os="k"><userinput>make bootstrap</userinput></screen>
68
69 <important os="l">
70 <para>The test suite for GCC is considered
71 critical. Do not skip it under any circumstance.</para>
72 </important>
73
74 <para os="m">Test the results, but do not stop at errors:</para>
75
76<screen os="n"><userinput>make -k check</userinput></screen>
77
78 <para os="o">The <parameter>-k</parameter> flag is used to make the test suite
79 run through to completion and not stop at the first failure. The GCC test
80 suite is very comprehensive and is almost guaranteed to generate a few
81 failures. To receive a summary of the test suite results, run:</para>
82
83<screen os="p"><userinput>../gcc-&gcc-version;/contrib/test_summary</userinput></screen>
84
85 <para os="q">For only the summaries, pipe the output through
86 <userinput>grep -A7 Summ</userinput>.</para>
87
88 <para os="r">A few unexpected failures cannot always be avoided. The
89 GCC developers are usually aware of these issues, but have not
90 resolved them yet.</para>
91
92 <para os="s">Install the package:</para>
93
94<screen os="t"><userinput>make install</userinput></screen>
95
96 <para os="u">Some packages expect the C preprocessor to be installed in the
97 <filename class="directory">/lib</filename> directory.
98 To support those packages, create this symlink:</para>
99
100<screen os="v"><userinput>ln -sv ../usr/bin/cpp /lib</userinput></screen>
101
102 <para os="w">Many packages use the name <command>cc</command> to call the C
103 compiler. To satisfy those packages, create a symlink:</para>
104
105<screen os="x"><userinput>ln -sv gcc /usr/bin/cc</userinput></screen>
106
107 </sect2>
108
109 <sect2 id="contents-gcc" role="content">
110 <title>Contents of GCC</title>
111
112 <segmentedlist>
113 <segtitle>Installed programs</segtitle>
114 <segtitle>Installed libraries</segtitle>
115
116 <seglistitem>
117 <seg>c++, cc (link to gcc), cpp, g++, gcc, gccbug, and gcov</seg>
118 <seg>libgcc.a, libgcc_eh.a, libgcc_s.so, libmudflap.[a,so],
119 libmudflapth.[a,so], libstdc++.[a,so], and
120 libsupc++.a</seg>
121 </seglistitem>
122 </segmentedlist>
123
124 <variablelist>
125 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
126 <?dbfo list-presentation="list"?>
127 <?dbhtml list-presentation="table"?>
128
129 <varlistentry id="cc">
130 <term><command>cc</command></term>
131 <listitem>
132 <para>The C compiler</para>
133 <indexterm zone="ch-system-gcc cc">
134 <primary sortas="b-cc">cc</primary>
135 </indexterm>
136 </listitem>
137 </varlistentry>
138
139 <varlistentry id="cpp">
140 <term><command>cpp</command></term>
141 <listitem>
142 <para>The C preprocessor; it is used by the compiler to expand the
143 #include, #define, and similar statements in the source files</para>
144 <indexterm zone="ch-system-gcc cpp">
145 <primary sortas="b-cpp">cpp</primary>
146 </indexterm>
147 </listitem>
148 </varlistentry>
149
150 <varlistentry id="c">
151 <term><command>c++</command></term>
152 <listitem>
153 <para>The C++ compiler</para>
154 <indexterm zone="ch-system-gcc c">
155 <primary sortas="b-c++">c++</primary>
156 </indexterm>
157 </listitem>
158 </varlistentry>
159
160 <varlistentry id="g">
161 <term><command>g++</command></term>
162 <listitem>
163 <para>The C++ compiler</para>
164 <indexterm zone="ch-system-gcc g">
165 <primary sortas="b-g++">g++</primary>
166 </indexterm>
167 </listitem>
168 </varlistentry>
169
170 <varlistentry id="gcc">
171 <term><command>gcc</command></term>
172 <listitem>
173 <para>The C compiler</para>
174 <indexterm zone="ch-system-gcc gcc">
175 <primary sortas="b-gcc">gcc</primary>
176 </indexterm>
177 </listitem>
178 </varlistentry>
179
180 <varlistentry id="gccbug">
181 <term><command>gccbug</command></term>
182 <listitem>
183 <para>A shell script used to help create useful bug reports</para>
184 <indexterm zone="ch-system-gcc gccbug">
185 <primary sortas="b-gccbug">gccbug</primary>
186 </indexterm>
187 </listitem>
188 </varlistentry>
189
190 <varlistentry id="gcov">
191 <term><command>gcov</command></term>
192 <listitem>
193 <para>A coverage testing tool; it is used to analyze programs to
194 determine where optimizations will have the most effect</para>
195 <indexterm zone="ch-system-gcc gcov">
196 <primary sortas="b-gcov">gcov</primary>
197 </indexterm>
198 </listitem>
199 </varlistentry>
200
201 <varlistentry id="libgcc">
202 <term><filename class="libraryfile">libgcc</filename></term>
203 <listitem>
204 <para>Contains run-time support for <command>gcc</command></para>
205 <indexterm zone="ch-system-gcc libgcc">
206 <primary sortas="c-libgcc*">libgcc*</primary>
207 </indexterm>
208 </listitem>
209 </varlistentry>
210
211 <varlistentry id="libmudflap">
212 <term><filename class="libraryfile">libmudflap</filename></term>
213 <listitem>
214 <para>The libmudflap libraries are used by GCC for instrumenting
215 pointer and array dereferencing operations.</para>
216 <indexterm zone="ch-system-gcc libmudflap">
217 <primary sortas="c-libmudflap*">libmudflap*</primary>
218 </indexterm>
219 </listitem>
220 </varlistentry>
221
222 <varlistentry id="libstdc">
223 <term><filename class="libraryfile">libstdc++</filename></term>
224 <listitem>
225 <para>The standard C++ library</para>
226 <indexterm zone="ch-system-gcc libstdc">
227 <primary sortas="c-libstdc++">libstdc++</primary>
228 </indexterm>
229 </listitem>
230 </varlistentry>
231
232 <varlistentry id="libsupc">
233 <term><filename class="libraryfile">libsupc++</filename></term>
234 <listitem>
235 <para>Provides supporting routines for the C++ programming
236 language</para>
237 <indexterm zone="ch-system-gcc libsupc">
238 <primary sortas="c-libsupc++">libsupc++</primary>
239 </indexterm>
240 </listitem>
241 </varlistentry>
242
243 </variablelist>
244
245 </sect2>
246
247</sect1>
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