source: clfs-sysroot/BOOK/final-system/common/gcc.xml @ 586feb7

Last change on this file since 586feb7 was 586feb7, checked in by Joe Ciccone <jciccone@…>, 16 years ago

Updated the bootscripts package and make LFS to CLFS updates.

  • Property mode set to 100644
File size: 7.8 KB
Line 
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">To make sure that a couple of tools use the proper syntax,
29    apply the following patch:</para>
30
31<screen os="p2"><userinput>patch -Np1 -i ../gcc-4.1.1-posix-1.patch</userinput></screen>
32
33    <para os="p3">The following patch fixes the searching of multilib dirs for
34    specs file:</para>
35
36<screen os="p4"><userinput>patch -Np1 -i ../&gcc-PR20425-patch;</userinput></screen>
37
38    <para os="a">Apply a <command>sed</command> substitution that will suppress the
39    installation of <filename class="libraryfile">libiberty.a</filename>. The
40    version of <filename class="libraryfile">libiberty.a</filename> provided by
41    Binutils will be used instead:</para>
42
43<screen os="b"><userinput>cp libiberty/Makefile.in{,.orig}
44sed 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in.orig > libiberty/Makefile.in</userinput></screen>
45
46    <para os="e1">GCC provides a <command>gccbug</command> script which detects at
47    compile time whether mktemp is present, and hardcodes the result in a test.
48    If mktemp is not found, the script will fall back to using less
49    random names for temporary files.  We will be installing mktemp
50    later, so the following sed will simulate its presence:</para>
51
52<screen os="e2"><userinput>cp gcc/gccbug.in{,.orig}
53sed 's/@have_mktemp_command@/yes/' gcc/gccbug.in.orig > gcc/gccbug.in</userinput></screen>
54
55    <para os="c">The GCC documentation recommends building GCC outside of the source
56    directory in a dedicated build directory:</para>
57
58<screen os="d"><userinput>mkdir -v ../gcc-build
59cd ../gcc-build</userinput></screen>
60
61    <para os="e">Prepare GCC for compilation:</para>
62
63<screen os="f"><userinput>../gcc-&gcc-version;/configure --prefix=/usr --libexecdir=/usr/lib \
64    --build=${CLFS_HOST} --host=${CLFS_TARGET} --target=${CLFS_TARGET} \
65    --enable-shared --enable-threads=posix --enable-__cxa_atexit \
66    --enable-c99 --enable-long-long --enable-clocale=gnu \
67    --enable-languages=c,c++ --disable-libstdcxx-pch</userinput></screen>
68
69    <para os="g">Compile the package:</para>
70
71<screen os="h"><userinput>make</userinput></screen>
72
73    <para os="i">Install the package:</para>
74
75<screen os="j"><userinput>make DESTDIR=${CLFS} install</userinput></screen>
76
77    <para os="k">Some packages expect the C preprocessor to be installed in the
78    <filename class="directory">/lib</filename> directory.
79    To support those packages, create this symlink:</para>
80
81<screen os="l"><userinput>ln -sv ../usr/bin/cpp ${CLFS}/lib</userinput></screen>
82
83    <para os="m">Many packages use the name <command>cc</command> to call the C
84    compiler. To satisfy those packages, create a symlink:</para>
85
86<screen os="o"><userinput>ln -sv gcc ${CLFS}/usr/bin/cc</userinput></screen>
87
88  </sect2>
89
90  <sect2 id="contents-gcc" role="content">
91    <title>Contents of GCC</title>
92
93    <segmentedlist>
94      <segtitle>Installed programs</segtitle>
95      <segtitle>Installed libraries</segtitle>
96
97      <seglistitem>
98        <seg>c++, cc (link to gcc), cpp, g++, gcc, gccbug, and gcov</seg>
99        <seg>libgcc.a, libgcc_eh.a, libgcc_s.so, libmudflap.[a,so],
100        libmudflapth.[a,so], libstdc++.[a,so], and
101        libsupc++.a</seg>
102      </seglistitem>
103    </segmentedlist>
104
105    <variablelist>
106      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
107      <?dbfo list-presentation="list"?>
108      <?dbhtml list-presentation="table"?>
109
110      <varlistentry id="cc">
111        <term><command>cc</command></term>
112        <listitem>
113          <para>The C compiler</para>
114          <indexterm zone="ch-system-gcc cc">
115            <primary sortas="b-cc">cc</primary>
116          </indexterm>
117        </listitem>
118      </varlistentry>
119
120      <varlistentry id="cpp">
121        <term><command>cpp</command></term>
122        <listitem>
123          <para>The C preprocessor; it is used by the compiler to expand the
124          #include, #define, and similar statements in the source files</para>
125          <indexterm zone="ch-system-gcc cpp">
126            <primary sortas="b-cpp">cpp</primary>
127          </indexterm>
128        </listitem>
129      </varlistentry>
130
131      <varlistentry id="c">
132        <term><command>c++</command></term>
133        <listitem>
134          <para>The C++ compiler</para>
135          <indexterm zone="ch-system-gcc c">
136            <primary sortas="b-c++">c++</primary>
137          </indexterm>
138        </listitem>
139      </varlistentry>
140
141      <varlistentry id="g">
142        <term><command>g++</command></term>
143        <listitem>
144          <para>The C++ compiler</para>
145          <indexterm zone="ch-system-gcc g">
146            <primary sortas="b-g++">g++</primary>
147          </indexterm>
148        </listitem>
149      </varlistentry>
150
151      <varlistentry id="gcc">
152        <term><command>gcc</command></term>
153        <listitem>
154          <para>The C compiler</para>
155          <indexterm zone="ch-system-gcc gcc">
156            <primary sortas="b-gcc">gcc</primary>
157          </indexterm>
158        </listitem>
159      </varlistentry>
160
161      <varlistentry id="gccbug">
162        <term><command>gccbug</command></term>
163        <listitem>
164          <para>A shell script used to help create useful bug reports</para>
165          <indexterm zone="ch-system-gcc gccbug">
166            <primary sortas="b-gccbug">gccbug</primary>
167          </indexterm>
168        </listitem>
169      </varlistentry>
170
171      <varlistentry id="gcov">
172        <term><command>gcov</command></term>
173        <listitem>
174          <para>A coverage testing tool; it is used to analyze programs to
175          determine where optimizations will have the most effect</para>
176          <indexterm zone="ch-system-gcc gcov">
177            <primary sortas="b-gcov">gcov</primary>
178          </indexterm>
179        </listitem>
180      </varlistentry>
181
182      <varlistentry id="libgcc">
183        <term><filename class="libraryfile">libgcc</filename></term>
184        <listitem>
185          <para>Contains run-time support for <command>gcc</command></para>
186          <indexterm zone="ch-system-gcc libgcc">
187            <primary sortas="c-libgcc*">libgcc*</primary>
188          </indexterm>
189        </listitem>
190      </varlistentry>
191
192      <varlistentry id="libmudflap">
193        <term><filename class="libraryfile">libmudflap</filename></term>
194        <listitem>
195          <para>The libmudflap libraries are used by GCC for instrumenting
196          pointer and array dereferencing operations.</para>
197          <indexterm zone="ch-system-gcc libmudflap">
198            <primary sortas="c-libmudflap*">libmudflap*</primary>
199          </indexterm>
200        </listitem>
201      </varlistentry>
202
203      <varlistentry id="libstdc">
204        <term><filename class="libraryfile">libstdc++</filename></term>
205        <listitem>
206          <para>The standard C++ library</para>
207          <indexterm zone="ch-system-gcc libstdc">
208            <primary sortas="c-libstdc++">libstdc++</primary>
209          </indexterm>
210        </listitem>
211      </varlistentry>
212
213      <varlistentry id="libsupc">
214        <term><filename class="libraryfile">libsupc++</filename></term>
215        <listitem>
216          <para>Provides supporting routines for the C++ programming
217          language</para>
218          <indexterm zone="ch-system-gcc libsupc">
219            <primary sortas="c-libsupc++">libsupc++</primary>
220          </indexterm>
221        </listitem>
222      </varlistentry>
223
224    </variablelist>
225
226  </sect2>
227
228</sect1>
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