| 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 | <sect1info condition="script">
|
|---|
| 12 | <productname>gcc</productname>
|
|---|
| 13 | <productnumber>&gcc-version;</productnumber>
|
|---|
| 14 | <address>&gcc-url;</address>
|
|---|
| 15 | </sect1info>
|
|---|
| 16 |
|
|---|
| 17 | <title>GCC-&gcc-version;</title>
|
|---|
| 18 |
|
|---|
| 19 | <indexterm zone="ch-system-gcc">
|
|---|
| 20 | <primary sortas="a-GCC">GCC</primary>
|
|---|
| 21 | </indexterm>
|
|---|
| 22 |
|
|---|
| 23 | <sect2 role="package">
|
|---|
| 24 | <title/>
|
|---|
| 25 |
|
|---|
| 26 | <para>The GCC package contains the GNU compiler collection, which includes
|
|---|
| 27 | the C and C++ compilers.</para>
|
|---|
| 28 |
|
|---|
| 29 | <segmentedlist>
|
|---|
| 30 | <segtitle>&buildtime;</segtitle>
|
|---|
| 31 | <segtitle>&diskspace;</segtitle>
|
|---|
| 32 |
|
|---|
| 33 | <seglistitem>
|
|---|
| 34 | <seg>&gcc-ch6-sbu;</seg>
|
|---|
| 35 | <seg>&gcc-ch6-du;</seg>
|
|---|
| 36 | </seglistitem>
|
|---|
| 37 | </segmentedlist>
|
|---|
| 38 |
|
|---|
| 39 | </sect2>
|
|---|
| 40 |
|
|---|
| 41 | <sect2 role="installation">
|
|---|
| 42 | <title>Installation of GCC</title>
|
|---|
| 43 |
|
|---|
| 44 | <para>First fix a problem identified upstream that causes some
|
|---|
| 45 | programs to fail:</para>
|
|---|
| 46 |
|
|---|
| 47 | <screen><userinput remap="pre">patch -Np1 -i ../&gcc-upstream-patch;</userinput></screen>
|
|---|
| 48 | <!--
|
|---|
| 49 | <para>As in <xref linkend="ch-tools-gcc-pass2"/>, apply the following
|
|---|
| 50 | <command>sed</command> to force the build to use the
|
|---|
| 51 | <option>-fomit-frame-pointer</option> compiler flag in order to ensure
|
|---|
| 52 | consistent compiler builds:</para>
|
|---|
| 53 |
|
|---|
| 54 | <screen><userinput remap="pre">case `uname -m` in
|
|---|
| 55 | i?86) sed -i 's/^T_CFLAGS =$/& -fomit-frame-pointer/' gcc/Makefile.in ;;
|
|---|
| 56 | esac</userinput></screen>
|
|---|
| 57 | -->
|
|---|
| 58 | <para>The GCC documentation recommends building GCC outside of the source
|
|---|
| 59 | directory in a dedicated build directory:</para>
|
|---|
| 60 |
|
|---|
| 61 | <screen><userinput remap="pre">mkdir -v ../gcc-build
|
|---|
| 62 | cd ../gcc-build</userinput></screen>
|
|---|
| 63 |
|
|---|
| 64 | <para>Prepare GCC for compilation:</para>
|
|---|
| 65 |
|
|---|
| 66 | <screen><userinput remap="configure">SED=sed \
|
|---|
| 67 | ../gcc-&gcc-version;/configure \
|
|---|
| 68 | --prefix=/usr \
|
|---|
| 69 | --enable-shared \
|
|---|
| 70 | --enable-threads=posix \
|
|---|
| 71 | --enable-__cxa_atexit \
|
|---|
| 72 | --enable-clocale=gnu \
|
|---|
| 73 | --enable-languages=c,c++ \
|
|---|
| 74 | --disable-multilib \
|
|---|
| 75 | --disable-bootstrap \
|
|---|
| 76 | --with-system-zlib</userinput></screen>
|
|---|
| 77 |
|
|---|
| 78 | <para>Note that for other languages, there are some prerequisites that
|
|---|
| 79 | are not available. See the BLFS Book for instructions on how to
|
|---|
| 80 | build all the GCC supported languages.</para>
|
|---|
| 81 |
|
|---|
| 82 | <variablelist>
|
|---|
| 83 | <title>The meaning of the new configure option:</title>
|
|---|
| 84 |
|
|---|
| 85 | <varlistentry>
|
|---|
| 86 | <term><envar>SED=sed</envar></term>
|
|---|
| 87 | <listitem>
|
|---|
| 88 | <para>Setting this environment variable prevents a hard-coded
|
|---|
| 89 | path to /tools/bin/sed.</para>
|
|---|
| 90 | </listitem>
|
|---|
| 91 | </varlistentry>
|
|---|
| 92 |
|
|---|
| 93 | <varlistentry>
|
|---|
| 94 | <term><parameter>--with-system-zlib</parameter></term>
|
|---|
| 95 | <listitem>
|
|---|
| 96 | <para>This switch tells GCC to link to the system installed copy of
|
|---|
| 97 | the Zlib library, rather than its own internal copy.</para>
|
|---|
| 98 | </listitem>
|
|---|
| 99 | </varlistentry>
|
|---|
| 100 | </variablelist>
|
|---|
| 101 |
|
|---|
| 102 | <para>Compile the package:</para>
|
|---|
| 103 |
|
|---|
| 104 | <screen><userinput remap="make">make</userinput></screen>
|
|---|
| 105 |
|
|---|
| 106 | <important>
|
|---|
| 107 | <para>In this section, the test suite for GCC is considered
|
|---|
| 108 | critical. Do not skip it under any circumstance.</para>
|
|---|
| 109 | </important>
|
|---|
| 110 |
|
|---|
| 111 | <para>One set of tests in the GCC test suite is known to exhaust the stack,
|
|---|
| 112 | so increase the stack size prior to running the tests:</para>
|
|---|
| 113 |
|
|---|
| 114 | <screen><userinput remap="test">ulimit -s 32768</userinput></screen>
|
|---|
| 115 |
|
|---|
| 116 | <para>Test the results, but do not stop at errors:</para>
|
|---|
| 117 |
|
|---|
| 118 | <screen><userinput remap="test">make -k check</userinput></screen>
|
|---|
| 119 |
|
|---|
| 120 | <para>To receive a summary of the test suite results, run:</para>
|
|---|
| 121 |
|
|---|
| 122 | <screen><userinput remap="test">../gcc-&gcc-version;/contrib/test_summary</userinput></screen>
|
|---|
| 123 |
|
|---|
| 124 | <para>For only the summaries, pipe the output through
|
|---|
| 125 | <userinput>grep -A7 Summ</userinput>.</para>
|
|---|
| 126 |
|
|---|
| 127 | <para>Results can be compared with those located at <ulink
|
|---|
| 128 | url="&test-results;"/> and <ulink url="http://gcc.gnu.org/ml/gcc-testresults/"/>.</para>
|
|---|
| 129 |
|
|---|
| 130 | <para>A few unexpected failures cannot always be avoided. The GCC developers
|
|---|
| 131 | are usually aware of these issues, but have not resolved them yet. In
|
|---|
| 132 | particular, the <filename class="libraryfile">libmudflap</filename> tests
|
|---|
| 133 | are known to be particularly problematic as a result of a bug in GCC
|
|---|
| 134 | (<ulink url="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20003"/>).
|
|---|
| 135 | Unless the test results are vastly different from those at the above URL,
|
|---|
| 136 | it is safe to continue.</para>
|
|---|
| 137 |
|
|---|
| 138 | <para>Install the package:</para>
|
|---|
| 139 |
|
|---|
| 140 | <screen><userinput remap="install">make install</userinput></screen>
|
|---|
| 141 |
|
|---|
| 142 | <para>Some packages expect the C preprocessor to be installed in the
|
|---|
| 143 | <filename class="directory">/lib</filename> directory.
|
|---|
| 144 | To support those packages, create this symlink:</para>
|
|---|
| 145 |
|
|---|
| 146 | <screen><userinput remap="install">ln -sv ../usr/bin/cpp /lib</userinput></screen>
|
|---|
| 147 |
|
|---|
| 148 | <para>Many packages use the name <command>cc</command> to call the C
|
|---|
| 149 | compiler. To satisfy those packages, create a symlink:</para>
|
|---|
| 150 |
|
|---|
| 151 | <screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
|
|---|
| 152 |
|
|---|
| 153 | <para>Add a compatibility symlink to enable building programs with
|
|---|
| 154 | Link Time Optimization (LTO):</para>
|
|---|
| 155 |
|
|---|
| 156 | <screen><userinput remap="install">install -dm755 /usr/lib/bfd-plugins
|
|---|
| 157 | pushd /usr/lib/bfd-plugins
|
|---|
| 158 |
|
|---|
| 159 | if [ $(uname -m) == "i686" ]; then
|
|---|
| 160 | ln -sfv ../../libexec/gcc/i686-pc-linux-gnu/&gcc-version;/liblto_plugin.so
|
|---|
| 161 | else
|
|---|
| 162 | ln -sfv ../../libexec/gcc/x86_64-unknown-linux-gnu/&gcc-version;/liblto_plugin.so
|
|---|
| 163 | fi
|
|---|
| 164 |
|
|---|
| 165 | popd</userinput></screen>
|
|---|
| 166 |
|
|---|
| 167 | <para>Now that our final toolchain is in place, it is important to again ensure
|
|---|
| 168 | that compiling and linking will work as expected. We do this by performing
|
|---|
| 169 | the same sanity checks as we did earlier in the chapter:</para>
|
|---|
| 170 |
|
|---|
| 171 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 172 | href="adjusting.xml"
|
|---|
| 173 | xpointer="xpointer(//*[@os='a'])"/>
|
|---|
| 174 |
|
|---|
| 175 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 176 | href="adjusting.xml"
|
|---|
| 177 | xpointer="xpointer(//*[@os='b'])"/>
|
|---|
| 178 |
|
|---|
| 179 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 180 | href="adjusting.xml"
|
|---|
| 181 | xpointer="xpointer(//*[@os='c'])"/>
|
|---|
| 182 |
|
|---|
| 183 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 184 | href="adjusting.xml"
|
|---|
| 185 | xpointer="xpointer(//*[@os='d'])"/>
|
|---|
| 186 |
|
|---|
| 187 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 188 | href="adjusting.xml"
|
|---|
| 189 | xpointer="xpointer(//*[@os='e'])"/>
|
|---|
| 190 |
|
|---|
| 191 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 192 | href="adjusting.xml"
|
|---|
| 193 | xpointer="xpointer(//*[@os='f'])"/>
|
|---|
| 194 |
|
|---|
| 195 | <screen><computeroutput>/usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/../../../crt1.o succeeded
|
|---|
| 196 | /usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/../../../crti.o succeeded
|
|---|
| 197 | /usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/../../../crtn.o succeeded</computeroutput></screen>
|
|---|
| 198 |
|
|---|
| 199 | <para>Depending on your machine architecture, the above may differ slightly,
|
|---|
| 200 | the difference usually being the name of the directory
|
|---|
| 201 | after <filename class="directory">/usr/lib/gcc</filename>. If your machine is
|
|---|
| 202 | a 64-bit system, you may also see a directory named <filename class="directory">lib64</filename>
|
|---|
| 203 | towards the end of the string. The important thing to
|
|---|
| 204 | look for here is that <command>gcc</command> has found all three
|
|---|
| 205 | <filename>crt*.o</filename> files under the
|
|---|
| 206 | <filename class="directory">/usr/lib</filename> directory.</para>
|
|---|
| 207 |
|
|---|
| 208 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 209 | href="adjusting.xml"
|
|---|
| 210 | xpointer="xpointer(//*[@os='g'])"/>
|
|---|
| 211 |
|
|---|
| 212 | <screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
|
|---|
| 213 |
|
|---|
| 214 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 215 | href="adjusting.xml"
|
|---|
| 216 | xpointer="xpointer(//*[@os='h'])"/>
|
|---|
| 217 |
|
|---|
| 218 | <screen><computeroutput>#include <...> search starts here:
|
|---|
| 219 | /usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/include
|
|---|
| 220 | /usr/local/include
|
|---|
| 221 | /usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/include-fixed
|
|---|
| 222 | /usr/include</computeroutput></screen>
|
|---|
| 223 |
|
|---|
| 224 | <para>Again, note that the directory named after your target triplet may be
|
|---|
| 225 | different than the above, depending on your architecture.</para>
|
|---|
| 226 |
|
|---|
| 227 | <note><para>As of version 4.3.0, GCC now unconditionally installs the
|
|---|
| 228 | <filename>limits.h</filename> file into the private
|
|---|
| 229 | <filename class="directory">include-fixed</filename> directory, and that
|
|---|
| 230 | directory is required to be in place.</para></note>
|
|---|
| 231 |
|
|---|
| 232 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 233 | href="adjusting.xml"
|
|---|
| 234 | xpointer="xpointer(//*[@os='i'])"/>
|
|---|
| 235 |
|
|---|
| 236 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 237 | href="adjusting.xml"
|
|---|
| 238 | xpointer="xpointer(//*[@os='j'])"/>
|
|---|
| 239 |
|
|---|
| 240 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 241 | href="adjusting.xml"
|
|---|
| 242 | xpointer="xpointer(//*[@os='k'])"/>
|
|---|
| 243 |
|
|---|
| 244 | <screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
|
|---|
| 245 | SEARCH_DIR("/usr/local/lib32")
|
|---|
| 246 | SEARCH_DIR("/lib32")
|
|---|
| 247 | SEARCH_DIR("/usr/lib32")
|
|---|
| 248 | SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
|
|---|
| 249 | SEARCH_DIR("/usr/local/lib")
|
|---|
| 250 | SEARCH_DIR("/lib")
|
|---|
| 251 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
|
|---|
| 252 |
|
|---|
| 253 | <para>A 64-bit system may see a few different directories. For example, here
|
|---|
| 254 | is the output from an x86_64 machine:</para>
|
|---|
| 255 |
|
|---|
| 256 | <screen><computeroutput>SEARCH_DIR("/usr/x86_64-unknown-linux-gnu/lib64")
|
|---|
| 257 | SEARCH_DIR("/usr/local/lib64")
|
|---|
| 258 | SEARCH_DIR("/lib64")
|
|---|
| 259 | SEARCH_DIR("/usr/lib64")
|
|---|
| 260 | SEARCH_DIR("/usr/x86_64-unknown-linux-gnu/lib")
|
|---|
| 261 | SEARCH_DIR("/usr/local/lib")
|
|---|
| 262 | SEARCH_DIR("/lib")
|
|---|
| 263 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
|
|---|
| 264 |
|
|---|
| 265 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 266 | href="adjusting.xml"
|
|---|
| 267 | xpointer="xpointer(//*[@os='l'])"/>
|
|---|
| 268 |
|
|---|
| 269 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 270 | href="adjusting.xml"
|
|---|
| 271 | xpointer="xpointer(//*[@os='m'])"/>
|
|---|
| 272 |
|
|---|
| 273 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 274 | href="adjusting.xml"
|
|---|
| 275 | xpointer="xpointer(//*[@os='n'])"/>
|
|---|
| 276 |
|
|---|
| 277 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 278 | href="adjusting.xml"
|
|---|
| 279 | xpointer="xpointer(//*[@os='o'])"/>
|
|---|
| 280 |
|
|---|
| 281 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 282 | href="adjusting.xml"
|
|---|
| 283 | xpointer="xpointer(//*[@os='p'])"/>
|
|---|
| 284 |
|
|---|
| 285 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 286 | href="adjusting.xml"
|
|---|
| 287 | xpointer="xpointer(//*[@os='q'])"/>
|
|---|
| 288 |
|
|---|
| 289 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 290 | href="adjusting.xml"
|
|---|
| 291 | xpointer="xpointer(//*[@os='r'])"/>
|
|---|
| 292 |
|
|---|
| 293 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 294 | href="adjusting.xml"
|
|---|
| 295 | xpointer="xpointer(//*[@os='s'])"/>
|
|---|
| 296 |
|
|---|
| 297 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 298 | href="adjusting.xml"
|
|---|
| 299 | xpointer="xpointer(//*[@os='t'])"/>
|
|---|
| 300 |
|
|---|
| 301 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 302 | href="adjusting.xml"
|
|---|
| 303 | xpointer="xpointer(//*[@os='u'])"/>
|
|---|
| 304 |
|
|---|
| 305 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
|---|
| 306 | href="adjusting.xml"
|
|---|
| 307 | xpointer="xpointer(//*[@os='v'])"/>
|
|---|
| 308 |
|
|---|
| 309 | <para>Finally, move a misplaced file:</para>
|
|---|
| 310 |
|
|---|
| 311 | <screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
|
|---|
| 312 | mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
|
|---|
| 313 |
|
|---|
| 314 | </sect2>
|
|---|
| 315 |
|
|---|
| 316 | <sect2 id="contents-gcc" role="content">
|
|---|
| 317 | <title>Contents of GCC</title>
|
|---|
| 318 |
|
|---|
| 319 | <segmentedlist>
|
|---|
| 320 | <segtitle>Installed programs</segtitle>
|
|---|
| 321 | <segtitle>Installed libraries</segtitle>
|
|---|
| 322 | <segtitle>Installed directories</segtitle>
|
|---|
| 323 |
|
|---|
| 324 | <seglistitem>
|
|---|
| 325 | <seg>c++, cc (link to gcc), cpp, g++, gcc,
|
|---|
| 326 | gcc-ar, gcc-nm, gcc-ranlib, and gcov</seg>
|
|---|
| 327 |
|
|---|
| 328 | <seg>libasan.{a,so}, libatomic.{a,so}, libgcc.a, libgcc_eh.a,
|
|---|
| 329 | libgcc_s.so, libgcov.a, libgomp.{a,so}, libiberty.a, libitm.{a,so},
|
|---|
| 330 | liblto_plugin.so, libmudflap.{a,so}, libmudflapth.{a,so},
|
|---|
| 331 | libquadmath.{a,so}, libssp.{a,so},
|
|---|
| 332 | libssp_nonshared.a, libstdc++.{a,so}, libsupc++.a and libtsan.{a,so}</seg>
|
|---|
| 333 |
|
|---|
| 334 | <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc,
|
|---|
| 335 | /usr/share/gcc-&gcc-version;</seg>
|
|---|
| 336 | </seglistitem>
|
|---|
| 337 | </segmentedlist>
|
|---|
| 338 |
|
|---|
| 339 | <variablelist>
|
|---|
| 340 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|---|
| 341 | <?dbfo list-presentation="list"?>
|
|---|
| 342 | <?dbhtml list-presentation="table"?>
|
|---|
| 343 |
|
|---|
| 344 | <varlistentry id="c">
|
|---|
| 345 | <term><command>c++</command></term>
|
|---|
| 346 | <listitem>
|
|---|
| 347 | <para>The C++ compiler</para>
|
|---|
| 348 | <indexterm zone="ch-system-gcc c">
|
|---|
| 349 | <primary sortas="b-c++">c++</primary>
|
|---|
| 350 | </indexterm>
|
|---|
| 351 | </listitem>
|
|---|
| 352 | </varlistentry>
|
|---|
| 353 |
|
|---|
| 354 | <varlistentry id="cc">
|
|---|
| 355 | <term><command>cc</command></term>
|
|---|
| 356 | <listitem>
|
|---|
| 357 | <para>The C compiler</para>
|
|---|
| 358 | <indexterm zone="ch-system-gcc cc">
|
|---|
| 359 | <primary sortas="b-cc">cc</primary>
|
|---|
| 360 | </indexterm>
|
|---|
| 361 | </listitem>
|
|---|
| 362 | </varlistentry>
|
|---|
| 363 |
|
|---|
| 364 | <varlistentry id="cpp">
|
|---|
| 365 | <term><command>cpp</command></term>
|
|---|
| 366 | <listitem>
|
|---|
| 367 | <para>The C preprocessor; it is used by the compiler to expand the
|
|---|
| 368 | #include, #define, and similar statements in the source files</para>
|
|---|
| 369 | <indexterm zone="ch-system-gcc cpp">
|
|---|
| 370 | <primary sortas="b-cpp">cpp</primary>
|
|---|
| 371 | </indexterm>
|
|---|
| 372 | </listitem>
|
|---|
| 373 | </varlistentry>
|
|---|
| 374 |
|
|---|
| 375 | <varlistentry id="g">
|
|---|
| 376 | <term><command>g++</command></term>
|
|---|
| 377 | <listitem>
|
|---|
| 378 | <para>The C++ compiler</para>
|
|---|
| 379 | <indexterm zone="ch-system-gcc g">
|
|---|
| 380 | <primary sortas="b-g++">g++</primary>
|
|---|
| 381 | </indexterm>
|
|---|
| 382 | </listitem>
|
|---|
| 383 | </varlistentry>
|
|---|
| 384 |
|
|---|
| 385 | <varlistentry id="gcc">
|
|---|
| 386 | <term><command>gcc</command></term>
|
|---|
| 387 | <listitem>
|
|---|
| 388 | <para>The C compiler</para>
|
|---|
| 389 | <indexterm zone="ch-system-gcc gcc">
|
|---|
| 390 | <primary sortas="b-gcc">gcc</primary>
|
|---|
| 391 | </indexterm>
|
|---|
| 392 | </listitem>
|
|---|
| 393 | </varlistentry>
|
|---|
| 394 |
|
|---|
| 395 | <varlistentry id="gcc-ar">
|
|---|
| 396 | <term><command>gcc-ar</command></term>
|
|---|
| 397 | <listitem>
|
|---|
| 398 | <para>A wrapper around <command>ar</command> that adds a
|
|---|
| 399 | plugin to the command line. This program is only used
|
|---|
| 400 | to add "link time optization" and is not useful with the
|
|---|
| 401 | default build options.</para>
|
|---|
| 402 | <indexterm zone="ch-system-gcc gcc-ar">
|
|---|
| 403 | <primary sortas="b-gcc-ar">gc-ar</primary>
|
|---|
| 404 | </indexterm>
|
|---|
| 405 | </listitem>
|
|---|
| 406 | </varlistentry>
|
|---|
| 407 |
|
|---|
| 408 | <varlistentry id="gcc-nm">
|
|---|
| 409 | <term><command>gcc-nm</command></term>
|
|---|
| 410 | <listitem>
|
|---|
| 411 | <para>A wrapper around <command>nm</command> that adds a
|
|---|
| 412 | plugin to the command line. This program is only used
|
|---|
| 413 | to add "link time optization" and is not useful with the
|
|---|
| 414 | default build options.</para>
|
|---|
| 415 | <indexterm zone="ch-system-gcc gcc-nm">
|
|---|
| 416 | <primary sortas="b-gcc-nm">gc-nm</primary>
|
|---|
| 417 | </indexterm>
|
|---|
| 418 | </listitem>
|
|---|
| 419 | </varlistentry>
|
|---|
| 420 |
|
|---|
| 421 | <varlistentry id="gcc-ranlib">
|
|---|
| 422 | <term><command>gcc-ranlib</command></term>
|
|---|
| 423 | <listitem>
|
|---|
| 424 | <para>A wrapper around <command>ranlib</command> that adds a
|
|---|
| 425 | plugin to the command line. This program is only used
|
|---|
| 426 | to add "link time optization" and is not useful with the
|
|---|
| 427 | default build options.</para>
|
|---|
| 428 | <indexterm zone="ch-system-gcc gcc-ranlib">
|
|---|
| 429 | <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
|
|---|
| 430 | </indexterm>
|
|---|
| 431 | </listitem>
|
|---|
| 432 | </varlistentry>
|
|---|
| 433 |
|
|---|
| 434 | <varlistentry id="gcov">
|
|---|
| 435 | <term><command>gcov</command></term>
|
|---|
| 436 | <listitem>
|
|---|
| 437 | <para>A coverage testing tool; it is used to analyze programs to
|
|---|
| 438 | determine where optimizations will have the most effect</para>
|
|---|
| 439 | <indexterm zone="ch-system-gcc gcov">
|
|---|
| 440 | <primary sortas="b-gcov">gcov</primary>
|
|---|
| 441 | </indexterm>
|
|---|
| 442 | </listitem>
|
|---|
| 443 | </varlistentry>
|
|---|
| 444 |
|
|---|
| 445 | <varlistentry id="libasan">
|
|---|
| 446 | <term><command>libasan</command></term>
|
|---|
| 447 | <listitem>
|
|---|
| 448 | <para>The Address Sanitizer runtime library</para>
|
|---|
| 449 | <indexterm zone="ch-system-gcc libasan">
|
|---|
| 450 | <primary sortas="b-libasan">libasan</primary>
|
|---|
| 451 | </indexterm>
|
|---|
| 452 | </listitem>
|
|---|
| 453 | </varlistentry>
|
|---|
| 454 |
|
|---|
| 455 | <varlistentry id="libgcc">
|
|---|
| 456 | <term><filename class="libraryfile">libgcc</filename></term>
|
|---|
| 457 | <listitem>
|
|---|
| 458 | <para>Contains run-time support for <command>gcc</command></para>
|
|---|
| 459 | <indexterm zone="ch-system-gcc libgcc">
|
|---|
| 460 | <primary sortas="c-libgcc*">libgcc*</primary>
|
|---|
| 461 | </indexterm>
|
|---|
| 462 | </listitem>
|
|---|
| 463 | </varlistentry>
|
|---|
| 464 |
|
|---|
| 465 | <varlistentry id="libgcov">
|
|---|
| 466 | <term><filename class="libraryfile">libgcov</filename></term>
|
|---|
| 467 | <listitem>
|
|---|
| 468 | <para>This library is linked in to a program when GCC is instructed
|
|---|
| 469 | to enable profiling</para>
|
|---|
| 470 | <indexterm zone="ch-system-gcc libgcov">
|
|---|
| 471 | <primary sortas="c-libgcov">libgcov</primary>
|
|---|
| 472 | </indexterm>
|
|---|
| 473 | </listitem>
|
|---|
| 474 | </varlistentry>
|
|---|
| 475 |
|
|---|
| 476 | <varlistentry id="libgomp">
|
|---|
| 477 | <term><filename class="libraryfile">libgomp</filename></term>
|
|---|
| 478 | <listitem>
|
|---|
| 479 | <para>GNU implementation of the OpenMP API for multi-platform
|
|---|
| 480 | shared-memory parallel programming in C/C++ and Fortran</para>
|
|---|
| 481 | <indexterm zone="ch-system-gcc libgomp">
|
|---|
| 482 | <primary sortas="c-libgomp">libgomp</primary>
|
|---|
| 483 | </indexterm>
|
|---|
| 484 | </listitem>
|
|---|
| 485 | </varlistentry>
|
|---|
| 486 |
|
|---|
| 487 | <varlistentry id="libiberty">
|
|---|
| 488 | <term><filename class="libraryfile">libiberty</filename></term>
|
|---|
| 489 | <listitem>
|
|---|
| 490 | <para>Contains routines used by various GNU programs, including
|
|---|
| 491 | <command>getopt</command>, <command>obstack</command>,
|
|---|
| 492 | <command>strerror</command>, <command>strtol</command>, and
|
|---|
| 493 | <command>strtoul</command></para>
|
|---|
| 494 | <indexterm zone="ch-system-gcc libiberty">
|
|---|
| 495 | <primary sortas="c-libiberty">libiberty</primary>
|
|---|
| 496 | </indexterm>
|
|---|
| 497 | </listitem>
|
|---|
| 498 | </varlistentry>
|
|---|
| 499 |
|
|---|
| 500 | <varlistentry id="liblto_plugin">
|
|---|
| 501 | <term><filename class="libraryfile">liblto_plugin</filename></term>
|
|---|
| 502 | <listitem>
|
|---|
| 503 | <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
|
|---|
| 504 | optimizations across compilation units.</para>
|
|---|
| 505 | <indexterm zone="ch-system-gcc liblto_plugin">
|
|---|
| 506 | <primary sortas="c-liblto_plugin*">liblto_plugin*</primary>
|
|---|
| 507 | </indexterm>
|
|---|
| 508 | </listitem>
|
|---|
| 509 | </varlistentry>
|
|---|
| 510 |
|
|---|
| 511 | <varlistentry id="libmudflap">
|
|---|
| 512 | <term><filename class="libraryfile">libmudflap</filename></term>
|
|---|
| 513 | <listitem>
|
|---|
| 514 | <para>Contains routines that support GCC's bounds checking
|
|---|
| 515 | functionality</para>
|
|---|
| 516 | <indexterm zone="ch-system-gcc libmudflap">
|
|---|
| 517 | <primary sortas="c-libmudflap*">libmudflap*</primary>
|
|---|
| 518 | </indexterm>
|
|---|
| 519 | </listitem>
|
|---|
| 520 | </varlistentry>
|
|---|
| 521 |
|
|---|
| 522 | <varlistentry id="libquadmath">
|
|---|
| 523 | <term><filename class="libraryfile">libquadmath</filename></term>
|
|---|
| 524 | <listitem>
|
|---|
| 525 | <para>GCC Quad Precision Math Library API</para>
|
|---|
| 526 | <indexterm zone="ch-system-gcc libquadmath">
|
|---|
| 527 | <primary sortas="c-libquadmath*">libquadmath*</primary>
|
|---|
| 528 | </indexterm>
|
|---|
| 529 | </listitem>
|
|---|
| 530 | </varlistentry>
|
|---|
| 531 |
|
|---|
| 532 | <varlistentry id="libssp">
|
|---|
| 533 | <term><filename class="libraryfile">libssp</filename></term>
|
|---|
| 534 | <listitem>
|
|---|
| 535 | <para>Contains routines supporting GCC's stack-smashing protection
|
|---|
| 536 | functionality</para>
|
|---|
| 537 | <indexterm zone="ch-system-gcc libssp">
|
|---|
| 538 | <primary sortas="c-libssp*">libssp*</primary>
|
|---|
| 539 | </indexterm>
|
|---|
| 540 | </listitem>
|
|---|
| 541 | </varlistentry>
|
|---|
| 542 |
|
|---|
| 543 | <varlistentry id="libstdc">
|
|---|
| 544 | <term><filename class="libraryfile">libstdc++</filename></term>
|
|---|
| 545 | <listitem>
|
|---|
| 546 | <para>The standard C++ library</para>
|
|---|
| 547 | <indexterm zone="ch-system-gcc libstdc">
|
|---|
| 548 | <primary sortas="c-libstdc++">libstdc++</primary>
|
|---|
| 549 | </indexterm>
|
|---|
| 550 | </listitem>
|
|---|
| 551 | </varlistentry>
|
|---|
| 552 |
|
|---|
| 553 | <varlistentry id="libsupc">
|
|---|
| 554 | <term><filename class="libraryfile">libsupc++</filename></term>
|
|---|
| 555 | <listitem>
|
|---|
| 556 | <para>Provides supporting routines for the C++ programming
|
|---|
| 557 | language</para>
|
|---|
| 558 | <indexterm zone="ch-system-gcc libsupc">
|
|---|
| 559 | <primary sortas="c-libsupc++">libsupc++</primary>
|
|---|
| 560 | </indexterm>
|
|---|
| 561 | </listitem>
|
|---|
| 562 | </varlistentry>
|
|---|
| 563 |
|
|---|
| 564 | <varlistentry id="libtsan">
|
|---|
| 565 | <term><filename class="libraryfile">libtsan</filename></term>
|
|---|
| 566 | <listitem>
|
|---|
| 567 | <para>The Thread Sanitizer runtime library</para>
|
|---|
| 568 | <indexterm zone="ch-system-gcc libtsan">
|
|---|
| 569 | <primary sortas="c-libtsan">libtsan</primary>
|
|---|
| 570 | </indexterm>
|
|---|
| 571 | </listitem>
|
|---|
| 572 | </varlistentry>
|
|---|
| 573 |
|
|---|
| 574 | </variablelist>
|
|---|
| 575 |
|
|---|
| 576 | </sect2>
|
|---|
| 577 |
|
|---|
| 578 | </sect1>
|
|---|
