| 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="fix1">Apply a <command>sed</command> subsitution that will
|
|---|
| 34 | suppress the execution of the <command>fixincludes</command> script:</para>
|
|---|
| 35 |
|
|---|
| 36 | <screen os="fix2"><userinput>sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in</userinput></screen>
|
|---|
| 37 |
|
|---|
| 38 | <para os="f">The GCC documentation recommends building GCC outside of the source
|
|---|
| 39 | directory in a dedicated build directory:</para>
|
|---|
| 40 |
|
|---|
| 41 | <screen os="g"><userinput>mkdir -v ../gcc-build
|
|---|
| 42 | cd ../gcc-build</userinput></screen>
|
|---|
| 43 |
|
|---|
| 44 | <para os="h">Prepare GCC for compilation:</para>
|
|---|
| 45 |
|
|---|
| 46 | <screen os="i"><userinput>SED=sed CC="gcc -isystem /usr/include" \
|
|---|
| 47 | CXX="g++ -isystem /usr/include" \
|
|---|
| 48 | LDFLAGS="-Wl,-rpath-link,/usr/lib:/lib" \
|
|---|
| 49 | ../gcc-&gcc-version;/configure --prefix=/usr \
|
|---|
| 50 | --libexecdir=/usr/lib --enable-shared --enable-threads=posix \
|
|---|
| 51 | --enable-__cxa_atexit --enable-c99 --enable-long-long \
|
|---|
| 52 | --enable-clocale=gnu --enable-languages=c,c++ \
|
|---|
| 53 | --disable-multilib --disable-libstdcxx-pch \
|
|---|
| 54 | --with-system-zlib --enable-checking=release --enable-libstdcxx-time</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="s1">Increase the stack size prior to running the tests:</para>
|
|---|
| 66 |
|
|---|
| 67 | <screen os="s2"><userinput remap="test">ulimit -s 32768</userinput></screen>
|
|---|
| 68 |
|
|---|
| 69 | <para os="m">Test the results, but do not stop at errors:</para>
|
|---|
| 70 |
|
|---|
| 71 | <screen os="n"><userinput remap="test">make -k check</userinput></screen>
|
|---|
| 72 |
|
|---|
| 73 | <para os="o">The <parameter>-k</parameter> flag is used to make the test suite
|
|---|
| 74 | run through to completion and not stop at the first failure. The GCC test
|
|---|
| 75 | suite is very comprehensive and is almost guaranteed to generate a few
|
|---|
| 76 | failures. To receive a summary of the test suite results, run:</para>
|
|---|
| 77 |
|
|---|
| 78 | <screen os="p"><userinput remap="test">../gcc-&gcc-version;/contrib/test_summary</userinput></screen>
|
|---|
| 79 |
|
|---|
| 80 | <para os="q">For only the summaries, pipe the output through
|
|---|
| 81 | <userinput>grep -A7 Summ</userinput>.</para>
|
|---|
| 82 |
|
|---|
| 83 | <para os="r">A few unexpected failures cannot always be avoided. The
|
|---|
| 84 | GCC developers are usually aware of these issues, but have not
|
|---|
| 85 | resolved them yet.</para>
|
|---|
| 86 |
|
|---|
| 87 | <para os="s">Install the package:</para>
|
|---|
| 88 |
|
|---|
| 89 | <screen os="t"><userinput>make install</userinput></screen>
|
|---|
| 90 |
|
|---|
| 91 | <para os="u">Install the <filename class="headerfile">libiberty</filename> header
|
|---|
| 92 | file that is needed by some packages:</para>
|
|---|
| 93 |
|
|---|
| 94 | <screen os="v"><userinput>cp -v ../gcc-&gcc-version;/include/libiberty.h /usr/include</userinput></screen>
|
|---|
| 95 |
|
|---|
| 96 | <para os="w">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="x"><userinput>ln -sv ../usr/bin/cpp /lib</userinput></screen>
|
|---|
| 101 |
|
|---|
| 102 | <para os="y">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="z"><userinput>ln -sv gcc /usr/bin/cc</userinput></screen>
|
|---|
| 106 |
|
|---|
| 107 | <para os="aa">Finally, move a misplaced file:</para>
|
|---|
| 108 |
|
|---|
| 109 | <screen os="ab"><userinput>mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
|
|---|
| 110 |
|
|---|
| 111 | </sect2>
|
|---|
| 112 |
|
|---|
| 113 | <sect2 id="contents-gcc" role="content">
|
|---|
| 114 | <title>Contents of GCC</title>
|
|---|
| 115 |
|
|---|
| 116 | <segmentedlist>
|
|---|
| 117 | <segtitle>Installed programs</segtitle>
|
|---|
| 118 | <segtitle>Installed libraries</segtitle>
|
|---|
| 119 | <segtitle>Installed directories</segtitle>
|
|---|
| 120 |
|
|---|
| 121 | <seglistitem>
|
|---|
| 122 | <seg>c++, cc (link to gcc), cpp, g++, gcc, and gcov</seg>
|
|---|
| 123 | <seg>libasan.[a,so], libatomic.[a,so], libgcc.a, libgcc_eh.a, libgcc_s.so, libgcov.a,
|
|---|
| 124 | libgomp.[a,so], libiberty.a, libitm.[a,so], liblto_plugin.so, libmudflap.[a,so], libmudflapth.[a,so],
|
|---|
| 125 | libquadmath.[a,so], libssp.[a,so], libssp_nonshared.a, libstdc++.[a,so], libsupc++.a, and
|
|---|
| 126 | libtsan.[a,so]</seg>
|
|---|
| 127 | <seg>/usr/include/c++, /usr/lib/gcc, /usr/share/gcc-&gcc-version;</seg>
|
|---|
| 128 | </seglistitem>
|
|---|
| 129 | </segmentedlist>
|
|---|
| 130 |
|
|---|
| 131 | <variablelist>
|
|---|
| 132 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|---|
| 133 | <?dbfo list-presentation="list"?>
|
|---|
| 134 | <?dbhtml list-presentation="table"?>
|
|---|
| 135 |
|
|---|
| 136 | <varlistentry id="cc">
|
|---|
| 137 | <term><command>cc</command></term>
|
|---|
| 138 | <listitem>
|
|---|
| 139 | <para>The C compiler</para>
|
|---|
| 140 | <indexterm zone="ch-system-gcc cc">
|
|---|
| 141 | <primary sortas="b-cc">cc</primary>
|
|---|
| 142 | </indexterm>
|
|---|
| 143 | </listitem>
|
|---|
| 144 | </varlistentry>
|
|---|
| 145 |
|
|---|
| 146 | <varlistentry id="cpp">
|
|---|
| 147 | <term><command>cpp</command></term>
|
|---|
| 148 | <listitem>
|
|---|
| 149 | <para>The C preprocessor; it is used by the compiler to expand the
|
|---|
| 150 | #include, #define, and similar statements in the source files</para>
|
|---|
| 151 | <indexterm zone="ch-system-gcc cpp">
|
|---|
| 152 | <primary sortas="b-cpp">cpp</primary>
|
|---|
| 153 | </indexterm>
|
|---|
| 154 | </listitem>
|
|---|
| 155 | </varlistentry>
|
|---|
| 156 |
|
|---|
| 157 | <varlistentry id="c">
|
|---|
| 158 | <term><command>c++</command></term>
|
|---|
| 159 | <listitem>
|
|---|
| 160 | <para>The C++ compiler</para>
|
|---|
| 161 | <indexterm zone="ch-system-gcc c">
|
|---|
| 162 | <primary sortas="b-c++">c++</primary>
|
|---|
| 163 | </indexterm>
|
|---|
| 164 | </listitem>
|
|---|
| 165 | </varlistentry>
|
|---|
| 166 |
|
|---|
| 167 | <varlistentry id="g">
|
|---|
| 168 | <term><command>g++</command></term>
|
|---|
| 169 | <listitem>
|
|---|
| 170 | <para>The C++ compiler</para>
|
|---|
| 171 | <indexterm zone="ch-system-gcc g">
|
|---|
| 172 | <primary sortas="b-g++">g++</primary>
|
|---|
| 173 | </indexterm>
|
|---|
| 174 | </listitem>
|
|---|
| 175 | </varlistentry>
|
|---|
| 176 |
|
|---|
| 177 | <varlistentry id="gcc">
|
|---|
| 178 | <term><command>gcc</command></term>
|
|---|
| 179 | <listitem>
|
|---|
| 180 | <para>The C compiler</para>
|
|---|
| 181 | <indexterm zone="ch-system-gcc gcc">
|
|---|
| 182 | <primary sortas="b-gcc">gcc</primary>
|
|---|
| 183 | </indexterm>
|
|---|
| 184 | </listitem>
|
|---|
| 185 | </varlistentry>
|
|---|
| 186 |
|
|---|
| 187 | <varlistentry id="gcov">
|
|---|
| 188 | <term><command>gcov</command></term>
|
|---|
| 189 | <listitem>
|
|---|
| 190 | <para>A coverage testing tool; it is used to analyze programs to
|
|---|
| 191 | determine where optimizations will have the most effect</para>
|
|---|
| 192 | <indexterm zone="ch-system-gcc gcov">
|
|---|
| 193 | <primary sortas="b-gcov">gcov</primary>
|
|---|
| 194 | </indexterm>
|
|---|
| 195 | </listitem>
|
|---|
| 196 | </varlistentry>
|
|---|
| 197 |
|
|---|
| 198 | <varlistentry id="libasan">
|
|---|
| 199 | <term><filename class="libraryfile">libasan</filename></term>
|
|---|
| 200 | <listitem>
|
|---|
| 201 | <para>The Address Sanitizer runtime library</para>
|
|---|
| 202 | <indexterm zone="ch-system-gcc libasan">
|
|---|
| 203 | <primary sortas="c-libasan">libasan</primary>
|
|---|
| 204 | </indexterm>
|
|---|
| 205 | </listitem>
|
|---|
| 206 | </varlistentry>
|
|---|
| 207 |
|
|---|
| 208 | <varlistentry id="libgcc">
|
|---|
| 209 | <term><filename class="libraryfile">libgcc</filename></term>
|
|---|
| 210 | <listitem>
|
|---|
| 211 | <para>Contains run-time support for <command>gcc</command></para>
|
|---|
| 212 | <indexterm zone="ch-system-gcc libgcc">
|
|---|
| 213 | <primary sortas="c-libgcc*">libgcc*</primary>
|
|---|
| 214 | </indexterm>
|
|---|
| 215 | </listitem>
|
|---|
| 216 | </varlistentry>
|
|---|
| 217 |
|
|---|
| 218 | <varlistentry id="libgcov">
|
|---|
| 219 | <term><filename class="libraryfile">libgcov</filename></term>
|
|---|
| 220 | <listitem>
|
|---|
| 221 | <para>Library that is linked into a program when
|
|---|
| 222 | <command>gcc</command> is instructed to enable profiling</para>
|
|---|
| 223 | <indexterm zone="ch-system-gcc libgcov">
|
|---|
| 224 | <primary sortas="c-libgcov">libgcov</primary>
|
|---|
| 225 | </indexterm>
|
|---|
| 226 | </listitem>
|
|---|
| 227 | </varlistentry>
|
|---|
| 228 |
|
|---|
| 229 | <varlistentry id="libgomp">
|
|---|
| 230 | <term><filename class="libraryfile">libgomp</filename></term>
|
|---|
| 231 | <listitem>
|
|---|
| 232 | <para>GNU implementation of the OpenMP API for multi-platform
|
|---|
| 233 | shared-memory parallel programming in C/C++ and Fortran</para>
|
|---|
| 234 | <indexterm zone="ch-system-gcc libgomp">
|
|---|
| 235 | <primary sortas="c-libgomp">libgomp</primary>
|
|---|
| 236 | </indexterm>
|
|---|
| 237 | </listitem>
|
|---|
| 238 | </varlistentry>
|
|---|
| 239 |
|
|---|
| 240 | <varlistentry id="libiberty">
|
|---|
| 241 | <term><filename class="libraryfile">libiberty</filename></term>
|
|---|
| 242 | <listitem>
|
|---|
| 243 | <para>Contains routines used by various GNU programs, including
|
|---|
| 244 | <command>getopt</command>, <command>obstack</command>,
|
|---|
| 245 | <command>strerror</command>, <command>strtol</command>, and
|
|---|
| 246 | <command>strtoul</command></para>
|
|---|
| 247 | <indexterm zone="ch-system-gcc libiberty">
|
|---|
| 248 | <primary sortas="c-libiberty">libiberty</primary>
|
|---|
| 249 | </indexterm>
|
|---|
| 250 | </listitem>
|
|---|
| 251 | </varlistentry>
|
|---|
| 252 |
|
|---|
| 253 | <varlistentry id="libmudflap">
|
|---|
| 254 | <term><filename class="libraryfile">libmudflap</filename></term>
|
|---|
| 255 | <listitem>
|
|---|
| 256 | <para>The libmudflap libraries are used by GCC for instrumenting
|
|---|
| 257 | pointer and array dereferencing operations.</para>
|
|---|
| 258 | <indexterm zone="ch-system-gcc libmudflap">
|
|---|
| 259 | <primary sortas="c-libmudflap*">libmudflap*</primary>
|
|---|
| 260 | </indexterm>
|
|---|
| 261 | </listitem>
|
|---|
| 262 | </varlistentry>
|
|---|
| 263 |
|
|---|
| 264 | <varlistentry id="libssp">
|
|---|
| 265 | <term><filename class="libraryfile">libssp</filename></term>
|
|---|
| 266 | <listitem>
|
|---|
| 267 | <para>Contains routines supporting GCC's stack-smashing protection
|
|---|
| 268 | functionality</para>
|
|---|
| 269 | <indexterm zone="ch-system-gcc libssp">
|
|---|
| 270 | <primary sortas="c-libssp*">libssp*</primary>
|
|---|
| 271 | </indexterm>
|
|---|
| 272 | </listitem>
|
|---|
| 273 | </varlistentry>
|
|---|
| 274 |
|
|---|
| 275 | <varlistentry id="libstdc">
|
|---|
| 276 | <term><filename class="libraryfile">libstdc++</filename></term>
|
|---|
| 277 | <listitem>
|
|---|
| 278 | <para>The standard C++ library</para>
|
|---|
| 279 | <indexterm zone="ch-system-gcc libstdc">
|
|---|
| 280 | <primary sortas="c-libstdc++">libstdc++</primary>
|
|---|
| 281 | </indexterm>
|
|---|
| 282 | </listitem>
|
|---|
| 283 | </varlistentry>
|
|---|
| 284 |
|
|---|
| 285 | <varlistentry id="libsupc">
|
|---|
| 286 | <term><filename class="libraryfile">libsupc++</filename></term>
|
|---|
| 287 | <listitem>
|
|---|
| 288 | <para>Provides supporting routines for the C++ programming
|
|---|
| 289 | language</para>
|
|---|
| 290 | <indexterm zone="ch-system-gcc libsupc">
|
|---|
| 291 | <primary sortas="c-libsupc++">libsupc++</primary>
|
|---|
| 292 | </indexterm>
|
|---|
| 293 | </listitem>
|
|---|
| 294 | </varlistentry>
|
|---|
| 295 |
|
|---|
| 296 | <varlistentry id="libtsan">
|
|---|
| 297 | <term><filename class="libraryfile">libtsan</filename></term>
|
|---|
| 298 | <listitem>
|
|---|
| 299 | <para>The Thread Sanitizer runtime library</para>
|
|---|
| 300 | <indexterm zone="ch-system-gcc libtsan">
|
|---|
| 301 | <primary sortas="c-libtsan">libtsan</primary>
|
|---|
| 302 | </indexterm>
|
|---|
| 303 | </listitem>
|
|---|
| 304 | </varlistentry>
|
|---|
| 305 |
|
|---|
| 306 | </variablelist>
|
|---|
| 307 |
|
|---|
| 308 | </sect2>
|
|---|
| 309 |
|
|---|
| 310 | </sect1>
|
|---|
