source: chapter08/gcc.xml@ 89250241

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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 <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-fin-sbu;</seg>
35 <seg>&gcc-fin-du;</seg>
36 </seglistitem>
37 </segmentedlist>
38
39 </sect2>
40
41 <sect2 role="installation">
42 <title>Installation of GCC</title>
43
44 <para>At first, fix an issue breaking
45 <filename class="libraryfile">libasan.a</filename> building this package
46 with Glibc-2.34:</para>
47
48<screen><userinput remap="pre">sed -e '/static.*SIGSTKSZ/d' \
49 -e 's/return kAltStackSize/return SIGSTKSZ * 4/' \
50 -i libsanitizer/sanitizer_common/sanitizer_posix_libcdep.cpp</userinput></screen>
51
52 <para>If building on x86_64, change the default directory name for 64-bit
53 libraries to <quote>lib</quote>:</para>
54
55<screen><userinput remap="pre">case $(uname -m) in
56 x86_64)
57 sed -e '/m64=/s/lib64/lib/' \
58 -i.orig gcc/config/i386/t-linux64
59 ;;
60esac</userinput></screen>
61
62 <para>The GCC documentation recommends building GCC in a dedicated build directory:</para>
63
64<screen><userinput remap="pre">mkdir -v build
65cd build</userinput></screen>
66
67 <para>Prepare GCC for compilation:</para>
68
69<screen><userinput remap="configure">../configure --prefix=/usr \
70 LD=ld \
71 --enable-languages=c,c++ \
72 --disable-multilib \
73 --disable-bootstrap \
74 --with-system-zlib</userinput></screen>
75
76 <para>Note that for other programming languages there are some prerequisites that
77 are not yet available. See the
78 <ulink url="&blfs-book;general/gcc.html">BLFS Book GCC page</ulink>
79 for instructions on how to build all of GCC's supported languages.</para>
80
81 <variablelist>
82 <title>The meaning of the new configure parameters:</title>
83
84 <varlistentry>
85 <term><parameter>LD=ld</parameter></term>
86 <listitem>
87 <para>This parameter makes the configure script use the ld installed
88 by the binutils built earlier in this chapter, rather than
89 the cross-built version which would otherwise be used.</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 default
112 stack, 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 as a non-privileged user, but do not stop at errors:</para>
117
118<screen><userinput remap="test">chown -Rv tester .
119su tester -c "PATH=$PATH make -k check"</userinput></screen>
120
121 <para>To receive a summary of the test suite results, run:</para>
122
123<screen><userinput remap="test">../contrib/test_summary</userinput></screen>
124
125 <para>For only the summaries, pipe the output through
126 <userinput>grep -A7 Summ</userinput>.</para>
127
128 <para>Results can be compared with those located at <ulink
129 url="&test-results;"/> and
130 <ulink url="https://gcc.gnu.org/ml/gcc-testresults/"/>.</para>
131
132 <!-- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101081 -->
133 <para>Eight tests related to analyzer are known to fail.</para>
134
135 <!-- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101751 -->
136 <para>One test named <filename>asan_test.C</filename> is known to
137 fail.</para>
138
139 <!-- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100117 -->
140 <para>In libstdc++, one test named <filename>49745.cc</filename> is
141 known to fail because the header dependencies in glibc have
142 changed.</para>
143
144 <para>In libstdc++, one numpunct test and six tests related to get_time are
145 known to fail. These are all because the locale definitions in glibc have
146 changed but libstdc++ does not currently support those changes.</para>
147
148 <para>A few unexpected failures cannot always be avoided. The GCC developers
149 are usually aware of these issues, but have not resolved them yet.
150 Unless the test results are vastly different from those at the above URL,
151 it is safe to continue.</para>
152
153 <!--note><para>
154 On some combinations of kernel configuration and AMD processors
155 there may be more than 1100 failures in the gcc.target/i386/mpx
156 tests (which are designed to test the MPX option on recent
157 Intel processors). These can safely be ignored on AMD
158 processors. These tests will also fail on Intel processors if MPX support
159 is not enabled in the kernel even though it is present on the CPU.
160 </para></note-->
161
162 <!-- PR 91085, will be fixed in GCC 12. -->
163 <para>Install the package and remove an unneeded directory:</para>
164
165<screen><userinput remap="install">make install
166rm -rf /usr/lib/gcc/$(gcc -dumpmachine)/&gcc-version;/include-fixed/bits/</userinput></screen>
167
168 <para>The GCC build directory is owned by <systemitem class="username">
169 tester</systemitem> now and the ownership of the installed header
170 directory (and its content) will be incorrect. Change the ownership to
171 <systemitem class="username">root</systemitem> user and group:</para>
172
173<screen><userinput remap="install">chown -v -R root:root \
174 /usr/lib/gcc/*linux-gnu/&gcc-version;/include{,-fixed}</userinput></screen>
175
176 <para>Create a symlink required by the <ulink
177 url="https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s09.html">FHS</ulink>
178 for "historical" reasons.</para>
179
180<screen><userinput remap="install">ln -svr /usr/bin/cpp /usr/lib</userinput></screen>
181 <!-- already done earlier
182 <para>Many packages use the name <command>cc</command> to call the C
183 compiler. To satisfy those packages, create a symlink:</para>
184
185<screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
186 -->
187 <para>Add a compatibility symlink to enable building programs with
188 Link Time Optimization (LTO):</para>
189
190<screen><userinput remap="install">ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/&gcc-version;/liblto_plugin.so \
191 /usr/lib/bfd-plugins/</userinput></screen>
192
193 <para>Now that our final toolchain is in place, it is important to again ensure
194 that compiling and linking will work as expected. We do this by performing
195 some sanity checks:</para>
196
197 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
198 href="adjusting.xml"
199 xpointer="xpointer(//*[@os='a'])"/>
200
201 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
202 href="adjusting.xml"
203 xpointer="xpointer(//*[@os='b'])"/>
204
205 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
206 href="adjusting.xml"
207 xpointer="xpointer(//*[@os='c'])"/>
208
209 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
210 href="adjusting.xml"
211 xpointer="xpointer(//*[@os='d'])"/>
212
213 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
214 href="adjusting.xml"
215 xpointer="xpointer(//*[@os='e'])"/>
216
217 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
218 href="adjusting.xml"
219 xpointer="xpointer(//*[@os='f'])"/>
220
221<screen><computeroutput>/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crt1.o succeeded
222/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crti.o succeeded
223/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crtn.o succeeded</computeroutput></screen>
224
225 <para>Depending on your machine architecture, the above may differ slightly.
226 The difference will be the name of the directory
227 after <filename class="directory">/usr/lib/gcc</filename>. The important
228 thing to look for here is that <command>gcc</command> has found all three
229 <filename>crt*.o</filename> files under the
230 <filename class="directory">/usr/lib</filename> directory.</para>
231
232 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
233 href="adjusting.xml"
234 xpointer="xpointer(//*[@os='g'])"/>
235
236<screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
237
238 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
239 href="adjusting.xml"
240 xpointer="xpointer(//*[@os='h'])"/>
241
242<screen><computeroutput>#include &lt;...&gt; search starts here:
243 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include
244 /usr/local/include
245 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed
246 /usr/include</computeroutput></screen>
247
248 <para>Again, the directory named after your target triplet may be
249 different than the above, depending on your system architecture.</para>
250
251 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
252 href="adjusting.xml"
253 xpointer="xpointer(//*[@os='i'])"/>
254
255 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
256 href="adjusting.xml"
257 xpointer="xpointer(//*[@os='j'])"/>
258
259 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
260 href="adjusting.xml"
261 xpointer="xpointer(//*[@os='k'])"/>
262
263<screen><computeroutput>SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib64")
264SEARCH_DIR("/usr/local/lib64")
265SEARCH_DIR("/lib64")
266SEARCH_DIR("/usr/lib64")
267SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib")
268SEARCH_DIR("/usr/local/lib")
269SEARCH_DIR("/lib")
270SEARCH_DIR("/usr/lib");</computeroutput></screen>
271
272 <para>A 32-bit system may see a few different directories. For example, here
273 is the output from an i686 machine:</para>
274
275<screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
276SEARCH_DIR("/usr/local/lib32")
277SEARCH_DIR("/lib32")
278SEARCH_DIR("/usr/lib32")
279SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
280SEARCH_DIR("/usr/local/lib")
281SEARCH_DIR("/lib")
282SEARCH_DIR("/usr/lib");</computeroutput></screen>
283
284 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
285 href="adjusting.xml"
286 xpointer="xpointer(//*[@os='l'])"/>
287
288 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
289 href="adjusting.xml"
290 xpointer="xpointer(//*[@os='m'])"/>
291
292 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
293 href="adjusting.xml"
294 xpointer="xpointer(//*[@os='n'])"/>
295
296 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
297 href="adjusting.xml"
298 xpointer="xpointer(//*[@os='o'])"/>
299
300 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
301 href="adjusting.xml"
302 xpointer="xpointer(//*[@os='p'])"/>
303
304 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
305 href="adjusting.xml"
306 xpointer="xpointer(//*[@os='q'])"/>
307
308 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
309 href="adjusting.xml"
310 xpointer="xpointer(//*[@os='r'])"/>
311
312 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
313 href="adjusting.xml"
314 xpointer="xpointer(//*[@os='s'])"/>
315
316 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
317 href="adjusting.xml"
318 xpointer="xpointer(//*[@os='t'])"/>
319
320 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
321 href="adjusting.xml"
322 xpointer="xpointer(//*[@os='u'])"/>
323
324 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
325 href="adjusting.xml"
326 xpointer="xpointer(//*[@os='v'])"/>
327
328 <para>Finally, move a misplaced file:</para>
329
330<screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
331mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
332
333 </sect2>
334
335 <sect2 id="contents-gcc" role="content">
336 <title>Contents of GCC</title>
337
338 <segmentedlist>
339 <segtitle>Installed programs</segtitle>
340 <segtitle>Installed libraries</segtitle>
341 <segtitle>Installed directories</segtitle>
342
343 <seglistitem>
344 <seg>c++, cc (link to gcc), cpp, g++, gcc,
345 gcc-ar, gcc-nm, gcc-ranlib, gcov, gcov-dump, and gcov-tool</seg>
346
347 <seg>libasan.{a,so}, libatomic.{a,so}, libcc1.so, libgcc.a, libgcc_eh.a,
348 libgcc_s.so, libgcov.a, libgomp.{a,so}, libitm.{a,so},
349 liblsan.{a,so}, liblto_plugin.so,
350 libquadmath.{a,so}, libssp.{a,so}, libssp_nonshared.a,
351 libstdc++.{a,so}, libstdc++fs.a, libsupc++.a, libtsan.{a,so},
352 and libubsan.{a,so}</seg>
353
354 <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc, and
355 /usr/share/gcc-&gcc-version;</seg>
356 </seglistitem>
357 </segmentedlist>
358
359 <variablelist>
360 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
361 <?dbfo list-presentation="list"?>
362 <?dbhtml list-presentation="table"?>
363
364 <varlistentry id="c">
365 <term><command>c++</command></term>
366 <listitem>
367 <para>The C++ compiler</para>
368 <indexterm zone="ch-system-gcc c">
369 <primary sortas="b-c++">c++</primary>
370 </indexterm>
371 </listitem>
372 </varlistentry>
373
374 <varlistentry id="cc">
375 <term><command>cc</command></term>
376 <listitem>
377 <para>The C compiler</para>
378 <indexterm zone="ch-system-gcc cc">
379 <primary sortas="b-cc">cc</primary>
380 </indexterm>
381 </listitem>
382 </varlistentry>
383
384 <varlistentry id="cpp">
385 <term><command>cpp</command></term>
386 <listitem>
387 <para>The C preprocessor; it is used by the compiler to expand the
388 #include, #define, and similar statements in the source files</para>
389 <indexterm zone="ch-system-gcc cpp">
390 <primary sortas="b-cpp">cpp</primary>
391 </indexterm>
392 </listitem>
393 </varlistentry>
394
395 <varlistentry id="g">
396 <term><command>g++</command></term>
397 <listitem>
398 <para>The C++ compiler</para>
399 <indexterm zone="ch-system-gcc g">
400 <primary sortas="b-g++">g++</primary>
401 </indexterm>
402 </listitem>
403 </varlistentry>
404
405 <varlistentry id="gcc">
406 <term><command>gcc</command></term>
407 <listitem>
408 <para>The C compiler</para>
409 <indexterm zone="ch-system-gcc gcc">
410 <primary sortas="b-gcc">gcc</primary>
411 </indexterm>
412 </listitem>
413 </varlistentry>
414
415 <varlistentry id="gcc-ar">
416 <term><command>gcc-ar</command></term>
417 <listitem>
418 <para>A wrapper around <command>ar</command> that adds a
419 plugin to the command line. This program is only used
420 to add "link time optimization" and is not useful with the
421 default build options</para>
422 <indexterm zone="ch-system-gcc gcc-ar">
423 <primary sortas="b-gcc-ar">gc-ar</primary>
424 </indexterm>
425 </listitem>
426 </varlistentry>
427
428 <varlistentry id="gcc-nm">
429 <term><command>gcc-nm</command></term>
430 <listitem>
431 <para>A wrapper around <command>nm</command> that adds a
432 plugin to the command line. This program is only used
433 to add "link time optimization" and is not useful with the
434 default build options</para>
435 <indexterm zone="ch-system-gcc gcc-nm">
436 <primary sortas="b-gcc-nm">gc-nm</primary>
437 </indexterm>
438 </listitem>
439 </varlistentry>
440
441 <varlistentry id="gcc-ranlib">
442 <term><command>gcc-ranlib</command></term>
443 <listitem>
444 <para>A wrapper around <command>ranlib</command> that adds a
445 plugin to the command line. This program is only used
446 to add "link time optimization" and is not useful with the
447 default build options</para>
448 <indexterm zone="ch-system-gcc gcc-ranlib">
449 <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
450 </indexterm>
451 </listitem>
452 </varlistentry>
453
454 <varlistentry id="gcov">
455 <term><command>gcov</command></term>
456 <listitem>
457 <para>A coverage testing tool; it is used to analyze programs to
458 determine where optimizations will have the most effect</para>
459 <indexterm zone="ch-system-gcc gcov">
460 <primary sortas="b-gcov">gcov</primary>
461 </indexterm>
462 </listitem>
463 </varlistentry>
464
465 <varlistentry id="gcov-dump">
466 <term><command>gcov-dump</command></term>
467 <listitem>
468 <para>Offline gcda and gcno profile dump tool</para>
469 <indexterm zone="ch-system-gcc gcov-dump">
470 <primary sortas="b-gcov-dump">gcov-dump</primary>
471 </indexterm>
472 </listitem>
473 </varlistentry>
474
475 <varlistentry id="gcov-tool">
476 <term><command>gcov-tool</command></term>
477 <listitem>
478 <para>Offline gcda profile processing tool</para>
479 <indexterm zone="ch-system-gcc gcov-tool">
480 <primary sortas="b-gcov-tool">gcov-tool</primary>
481 </indexterm>
482 </listitem>
483 </varlistentry>
484
485 <varlistentry id="libasan">
486 <term><filename class="libraryfile">libasan</filename></term>
487 <listitem>
488 <para>The Address Sanitizer runtime library</para>
489 <indexterm zone="ch-system-gcc libasan">
490 <primary sortas="b-libasan">libasan</primary>
491 </indexterm>
492 </listitem>
493 </varlistentry>
494
495 <varlistentry id="libatomic">
496 <term><filename class="libraryfile">libatomic</filename></term>
497 <listitem>
498 <para>GCC atomic built-in runtime library</para>
499 <indexterm zone="ch-system-gcc libatomic">
500 <primary sortas="b-libatomic">libatomic</primary>
501 </indexterm>
502 </listitem>
503 </varlistentry>
504
505 <varlistentry id="libcc1">
506 <term><filename class="libraryfile">libcc1</filename></term>
507 <listitem>
508 <para>The C preprocessing library</para>
509 <indexterm zone="ch-system-gcc libcc1">
510 <primary sortas="b-libcc1">libcc1</primary>
511 </indexterm>
512 </listitem>
513 </varlistentry>
514
515 <varlistentry id="libgcc">
516 <term><filename class="libraryfile">libgcc</filename></term>
517 <listitem>
518 <para>Contains run-time support for <command>gcc</command></para>
519 <indexterm zone="ch-system-gcc libgcc">
520 <primary sortas="c-libgcc">libgcc</primary>
521 </indexterm>
522 </listitem>
523 </varlistentry>
524
525 <varlistentry id="libgcov">
526 <term><filename class="libraryfile">libgcov</filename></term>
527 <listitem>
528 <para>This library is linked in to a program when GCC is instructed
529 to enable profiling</para>
530 <indexterm zone="ch-system-gcc libgcov">
531 <primary sortas="c-libgcov">libgcov</primary>
532 </indexterm>
533 </listitem>
534 </varlistentry>
535
536 <varlistentry id="libgomp">
537 <term><filename class="libraryfile">libgomp</filename></term>
538 <listitem>
539 <para>GNU implementation of the OpenMP API for multi-platform
540 shared-memory parallel programming in C/C++ and Fortran</para>
541 <indexterm zone="ch-system-gcc libgomp">
542 <primary sortas="c-libgomp">libgomp</primary>
543 </indexterm>
544 </listitem>
545 </varlistentry>
546
547 <varlistentry id="liblsan">
548 <term><filename class="libraryfile">liblsan</filename></term>
549 <listitem>
550 <para>The Leak Sanitizer runtime library</para>
551 <indexterm zone="ch-system-gcc liblsan">
552 <primary sortas="c-liblsan">liblsan</primary>
553 </indexterm>
554 </listitem>
555 </varlistentry>
556
557 <varlistentry id="liblto_plugin">
558 <term><filename class="libraryfile">liblto_plugin</filename></term>
559 <listitem>
560 <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
561 optimizations across compilation units</para>
562 <indexterm zone="ch-system-gcc liblto_plugin">
563 <primary sortas="c-liblto_plugin">liblto_plugin</primary>
564 </indexterm>
565 </listitem>
566 </varlistentry>
567
568 <varlistentry id="libquadmath">
569 <term><filename class="libraryfile">libquadmath</filename></term>
570 <listitem>
571 <para>GCC Quad Precision Math Library API</para>
572 <indexterm zone="ch-system-gcc libquadmath">
573 <primary sortas="c-libquadmath">libquadmath</primary>
574 </indexterm>
575 </listitem>
576 </varlistentry>
577
578 <varlistentry id="libssp">
579 <term><filename class="libraryfile">libssp</filename></term>
580 <listitem>
581 <para>Contains routines supporting GCC's stack-smashing protection
582 functionality</para>
583 <indexterm zone="ch-system-gcc libssp">
584 <primary sortas="c-libssp">libssp</primary>
585 </indexterm>
586 </listitem>
587 </varlistentry>
588
589 <varlistentry id="libstdc">
590 <term><filename class="libraryfile">libstdc++</filename></term>
591 <listitem>
592 <para>The standard C++ library</para>
593 <indexterm zone="ch-system-gcc libstdc">
594 <primary sortas="c-libstdc++">libstdc++</primary>
595 </indexterm>
596 </listitem>
597 </varlistentry>
598
599 <varlistentry id="libstdcfs">
600 <term><filename class="libraryfile">libstdc++fs</filename></term>
601 <listitem>
602 <para>ISO/IEC TS 18822:2015 Filesystem library</para>
603 <indexterm zone="ch-system-gcc libstdcfs">
604 <primary sortas="c-libstdc++fs">libstdc++fs</primary>
605 </indexterm>
606 </listitem>
607 </varlistentry>
608
609 <varlistentry id="libsupc">
610 <term><filename class="libraryfile">libsupc++</filename></term>
611 <listitem>
612 <para>Provides supporting routines for the C++ programming
613 language</para>
614 <indexterm zone="ch-system-gcc libsupc">
615 <primary sortas="c-libsupc++">libsupc++</primary>
616 </indexterm>
617 </listitem>
618 </varlistentry>
619
620 <varlistentry id="libtsan">
621 <term><filename class="libraryfile">libtsan</filename></term>
622 <listitem>
623 <para>The Thread Sanitizer runtime library</para>
624 <indexterm zone="ch-system-gcc libtsan">
625 <primary sortas="c-libtsan">libtsan</primary>
626 </indexterm>
627 </listitem>
628 </varlistentry>
629
630 <varlistentry id="libubsan">
631 <term><filename class="libraryfile">libubsan</filename></term>
632 <listitem>
633 <para>The Undefined Behavior Sanitizer runtime library</para>
634 <indexterm zone="ch-system-gcc libubsan">
635 <primary sortas="c-libubsan">libubsan</primary>
636 </indexterm>
637 </listitem>
638 </varlistentry>
639
640 </variablelist>
641
642 </sect2>
643
644</sect1>
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