source: BOOK/final-system/common/gcc.xml @ fe40bd7

clfs-1.2clfs-2.1clfs-3.0.0-systemdclfs-3.0.0-sysvinitsystemdsysvinit
Last change on this file since fe40bd7 was fe40bd7, checked in by Jim Gifford <clfs@…>, 15 years ago

Added GCC Branch Update Patch to -1

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