source: chapter08/gcc.xml@ e3d0e26

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Last change on this file since e3d0e26 was e3d0e26, checked in by Xi Ruoyao <xry111@…>, 13 months ago

gcc: correct desc of locale related tests

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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>If building on x86_64, change the default directory name for 64-bit
45 libraries to <quote>lib</quote>:</para>
46
47<screen><userinput remap="pre">case $(uname -m) in
48 x86_64)
49 sed -e '/m64=/s/lib64/lib/' \
50 -i.orig gcc/config/i386/t-linux64
51 ;;
52esac</userinput></screen>
53
54 <para>The GCC documentation recommends building GCC in a dedicated build directory:</para>
55
56<screen><userinput remap="pre">mkdir -v build
57cd build</userinput></screen>
58
59 <para>Prepare GCC for compilation:</para>
60
61<screen><userinput remap="configure">../configure --prefix=/usr \
62 LD=ld \
63 --enable-languages=c,c++ \
64 --disable-multilib \
65 --disable-bootstrap \
66 --with-system-zlib</userinput></screen>
67
68 <para>Note that for other programming languages there are some prerequisites that
69 are not yet available. See the
70 <ulink url="&blfs-book;general/gcc.html">BLFS Book GCC page</ulink>
71 for instructions on how to build all of GCC's supported languages.</para>
72
73 <variablelist>
74 <title>The meaning of the new configure parameters:</title>
75
76 <varlistentry>
77 <term><parameter>LD=ld</parameter></term>
78 <listitem>
79 <para>This parameter makes the configure script use the ld installed
80 by the binutils built earlier in this chapter, rather than
81 the cross-built version which would otherwise be used.</para>
82 </listitem>
83 </varlistentry>
84
85 <varlistentry>
86 <term><parameter>--with-system-zlib</parameter></term>
87 <listitem>
88 <para>This switch tells GCC to link to the system installed copy of
89 the zlib library, rather than its own internal copy.</para>
90 </listitem>
91 </varlistentry>
92 </variablelist>
93
94 <para>Compile the package:</para>
95
96<screen><userinput remap="make">make</userinput></screen>
97
98 <important>
99 <para>In this section, the test suite for GCC is considered
100 critical. Do not skip it under any circumstance.</para>
101 </important>
102
103 <para>One set of tests in the GCC test suite is known to exhaust the default
104 stack, so increase the stack size prior to running the tests:</para>
105
106<screen><userinput remap="test">ulimit -s 32768</userinput></screen>
107
108 <para>Test the results as a non-privileged user, but do not stop at errors:</para>
109
110<screen><userinput remap="test">chown -Rv tester .
111su tester -c "PATH=$PATH make -k check"</userinput></screen>
112
113 <para>To receive a summary of the test suite results, run:</para>
114
115<screen><userinput remap="test">../contrib/test_summary</userinput></screen>
116
117 <para>For only the summaries, pipe the output through
118 <userinput>grep -A7 Summ</userinput>.</para>
119
120 <para>Results can be compared with those located at <ulink
121 url="&test-results;"/> and
122 <ulink url="https://gcc.gnu.org/ml/gcc-testresults/"/>.</para>
123
124 <para>In g++, three tests in constexpr-52830 are known to fail and
125 also to be treated as unexpected successes (XPASS). This is because
126 an <quote>internal compiler error</quote> on this test is fixed, but
127 the compiler still rejects some valid code.</para>
128
129 <!-- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96322
130 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71367 -->
131 <para>In libstdc++, one numpunct test and six tests related to get_time are
132 known to fail. These are all because the locale definitions in glibc have
133 changed but libstdc++ does not currently support those changes.</para>
134
135<!--<para>Additionally the following tests related to the following files
136 are known to fail with glibc-2.33: asan_test.C, co-ret-17-void-ret-coro.C,
137 pr95519-05-gro.C, pr80166.c.</para>
138-->
139
140<!-- don't fail anymore after the move of iana-etc and /etc/hosts
141 <para>Two tests named lookup.cc and reverse.cc in experimental/net
142 are known to fail in LFS chroot environment because they require
143 /etc/hosts and iana-etc.</para>
144-->
145 <para>A few unexpected failures cannot always be avoided. The GCC developers
146 are usually aware of these issues, but have not resolved them yet.
147 Unless the test results are vastly different from those at the above URL,
148 it is safe to continue.</para>
149
150 <!--note><para>
151 On some combinations of kernel configuration and AMD processors
152 there may be more than 1100 failures in the gcc.target/i386/mpx
153 tests (which are designed to test the MPX option on recent
154 Intel processors). These can safely be ignored on AMD
155 processors. These tests will also fail on Intel processors if MPX support
156 is not enabled in the kernel even though it is present on the CPU.
157 </para></note-->
158
159 <!-- PR 91085, will be fixed in GCC 12. -->
160 <para>Install the package and remove an unneeded directory:</para>
161
162<screen><userinput remap="install">make install
163rm -rf /usr/lib/gcc/$(gcc -dumpmachine)/&gcc-version;/include-fixed/bits/</userinput></screen>
164
165 <para>The GCC build directory is owned by <systemitem class="username">
166 tester</systemitem> now and the ownership of the installed header
167 directory (and its content) will be incorrect. Change the ownership to
168 <systemitem class="username">root</systemitem> user and group:</para>
169
170<screen><userinput remap="install">chown -v -R root:root \
171 /usr/lib/gcc/*linux-gnu/&gcc-version;/include{,-fixed}</userinput></screen>
172
173 <para>Create a symlink required by the <ulink
174 url="https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s09.html">FHS</ulink>
175 for "historical" reasons.</para>
176
177<screen><userinput remap="install">ln -svr /usr/bin/cpp /usr/lib</userinput></screen>
178 <!-- already done earlier
179 <para>Many packages use the name <command>cc</command> to call the C
180 compiler. To satisfy those packages, create a symlink:</para>
181
182<screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
183 -->
184 <para>Add a compatibility symlink to enable building programs with
185 Link Time Optimization (LTO):</para>
186
187<screen><userinput remap="install">ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/&gcc-version;/liblto_plugin.so \
188 /usr/lib/bfd-plugins/</userinput></screen>
189
190 <para>Now that our final toolchain is in place, it is important to again ensure
191 that compiling and linking will work as expected. We do this by performing
192 some sanity checks:</para>
193
194 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
195 href="adjusting.xml"
196 xpointer="xpointer(//*[@os='a'])"/>
197
198 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
199 href="adjusting.xml"
200 xpointer="xpointer(//*[@os='b'])"/>
201
202 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
203 href="adjusting.xml"
204 xpointer="xpointer(//*[@os='c'])"/>
205
206 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
207 href="adjusting.xml"
208 xpointer="xpointer(//*[@os='d'])"/>
209
210 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
211 href="adjusting.xml"
212 xpointer="xpointer(//*[@os='e'])"/>
213
214 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
215 href="adjusting.xml"
216 xpointer="xpointer(//*[@os='f'])"/>
217
218<screen><computeroutput>/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crt1.o succeeded
219/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crti.o succeeded
220/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crtn.o succeeded</computeroutput></screen>
221
222 <para>Depending on your machine architecture, the above may differ slightly.
223 The difference will be the name of the directory
224 after <filename class="directory">/usr/lib/gcc</filename>. The important
225 thing to look for here is that <command>gcc</command> has found all three
226 <filename>crt*.o</filename> files under the
227 <filename class="directory">/usr/lib</filename> directory.</para>
228
229 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
230 href="adjusting.xml"
231 xpointer="xpointer(//*[@os='g'])"/>
232
233<screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
234
235 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
236 href="adjusting.xml"
237 xpointer="xpointer(//*[@os='h'])"/>
238
239<screen><computeroutput>#include &lt;...&gt; search starts here:
240 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include
241 /usr/local/include
242 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed
243 /usr/include</computeroutput></screen>
244
245 <para>Again, the directory named after your target triplet may be
246 different than the above, depending on your system architecture.</para>
247
248 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
249 href="adjusting.xml"
250 xpointer="xpointer(//*[@os='i'])"/>
251
252 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
253 href="adjusting.xml"
254 xpointer="xpointer(//*[@os='j'])"/>
255
256 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
257 href="adjusting.xml"
258 xpointer="xpointer(//*[@os='k'])"/>
259
260<screen><computeroutput>SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib64")
261SEARCH_DIR("/usr/local/lib64")
262SEARCH_DIR("/lib64")
263SEARCH_DIR("/usr/lib64")
264SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib")
265SEARCH_DIR("/usr/local/lib")
266SEARCH_DIR("/lib")
267SEARCH_DIR("/usr/lib");</computeroutput></screen>
268
269 <para>A 32-bit system may see a few different directories. For example, here
270 is the output from an i686 machine:</para>
271
272<screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
273SEARCH_DIR("/usr/local/lib32")
274SEARCH_DIR("/lib32")
275SEARCH_DIR("/usr/lib32")
276SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
277SEARCH_DIR("/usr/local/lib")
278SEARCH_DIR("/lib")
279SEARCH_DIR("/usr/lib");</computeroutput></screen>
280
281 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
282 href="adjusting.xml"
283 xpointer="xpointer(//*[@os='l'])"/>
284
285 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
286 href="adjusting.xml"
287 xpointer="xpointer(//*[@os='m'])"/>
288
289 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
290 href="adjusting.xml"
291 xpointer="xpointer(//*[@os='n'])"/>
292
293 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
294 href="adjusting.xml"
295 xpointer="xpointer(//*[@os='o'])"/>
296
297 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
298 href="adjusting.xml"
299 xpointer="xpointer(//*[@os='p'])"/>
300
301 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
302 href="adjusting.xml"
303 xpointer="xpointer(//*[@os='q'])"/>
304
305 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
306 href="adjusting.xml"
307 xpointer="xpointer(//*[@os='r'])"/>
308
309 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
310 href="adjusting.xml"
311 xpointer="xpointer(//*[@os='s'])"/>
312
313 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
314 href="adjusting.xml"
315 xpointer="xpointer(//*[@os='t'])"/>
316
317 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
318 href="adjusting.xml"
319 xpointer="xpointer(//*[@os='u'])"/>
320
321 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
322 href="adjusting.xml"
323 xpointer="xpointer(//*[@os='v'])"/>
324
325 <para>Finally, move a misplaced file:</para>
326
327<screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
328mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
329
330 </sect2>
331
332 <sect2 id="contents-gcc" role="content">
333 <title>Contents of GCC</title>
334
335 <segmentedlist>
336 <segtitle>Installed programs</segtitle>
337 <segtitle>Installed libraries</segtitle>
338 <segtitle>Installed directories</segtitle>
339
340 <seglistitem>
341 <seg>c++, cc (link to gcc), cpp, g++, gcc,
342 gcc-ar, gcc-nm, gcc-ranlib, gcov, gcov-dump, and gcov-tool</seg>
343
344 <seg>libasan.{a,so}, libatomic.{a,so}, libcc1.so, libgcc.a, libgcc_eh.a,
345 libgcc_s.so, libgcov.a, libgomp.{a,so}, libitm.{a,so},
346 liblsan.{a,so}, liblto_plugin.so,
347 libquadmath.{a,so}, libssp.{a,so}, libssp_nonshared.a,
348 libstdc++.{a,so}, libstdc++fs.a, libsupc++.a, libtsan.{a,so},
349 and libubsan.{a,so}</seg>
350
351 <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc, and
352 /usr/share/gcc-&gcc-version;</seg>
353 </seglistitem>
354 </segmentedlist>
355
356 <variablelist>
357 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
358 <?dbfo list-presentation="list"?>
359 <?dbhtml list-presentation="table"?>
360
361 <varlistentry id="c">
362 <term><command>c++</command></term>
363 <listitem>
364 <para>The C++ compiler</para>
365 <indexterm zone="ch-system-gcc c">
366 <primary sortas="b-c++">c++</primary>
367 </indexterm>
368 </listitem>
369 </varlistentry>
370
371 <varlistentry id="cc">
372 <term><command>cc</command></term>
373 <listitem>
374 <para>The C compiler</para>
375 <indexterm zone="ch-system-gcc cc">
376 <primary sortas="b-cc">cc</primary>
377 </indexterm>
378 </listitem>
379 </varlistentry>
380
381 <varlistentry id="cpp">
382 <term><command>cpp</command></term>
383 <listitem>
384 <para>The C preprocessor; it is used by the compiler to expand the
385 #include, #define, and similar statements in the source files</para>
386 <indexterm zone="ch-system-gcc cpp">
387 <primary sortas="b-cpp">cpp</primary>
388 </indexterm>
389 </listitem>
390 </varlistentry>
391
392 <varlistentry id="g">
393 <term><command>g++</command></term>
394 <listitem>
395 <para>The C++ compiler</para>
396 <indexterm zone="ch-system-gcc g">
397 <primary sortas="b-g++">g++</primary>
398 </indexterm>
399 </listitem>
400 </varlistentry>
401
402 <varlistentry id="gcc">
403 <term><command>gcc</command></term>
404 <listitem>
405 <para>The C compiler</para>
406 <indexterm zone="ch-system-gcc gcc">
407 <primary sortas="b-gcc">gcc</primary>
408 </indexterm>
409 </listitem>
410 </varlistentry>
411
412 <varlistentry id="gcc-ar">
413 <term><command>gcc-ar</command></term>
414 <listitem>
415 <para>A wrapper around <command>ar</command> that adds a
416 plugin to the command line. This program is only used
417 to add "link time optimization" and is not useful with the
418 default build options</para>
419 <indexterm zone="ch-system-gcc gcc-ar">
420 <primary sortas="b-gcc-ar">gc-ar</primary>
421 </indexterm>
422 </listitem>
423 </varlistentry>
424
425 <varlistentry id="gcc-nm">
426 <term><command>gcc-nm</command></term>
427 <listitem>
428 <para>A wrapper around <command>nm</command> that adds a
429 plugin to the command line. This program is only used
430 to add "link time optimization" and is not useful with the
431 default build options</para>
432 <indexterm zone="ch-system-gcc gcc-nm">
433 <primary sortas="b-gcc-nm">gc-nm</primary>
434 </indexterm>
435 </listitem>
436 </varlistentry>
437
438 <varlistentry id="gcc-ranlib">
439 <term><command>gcc-ranlib</command></term>
440 <listitem>
441 <para>A wrapper around <command>ranlib</command> that adds a
442 plugin to the command line. This program is only used
443 to add "link time optimization" and is not useful with the
444 default build options</para>
445 <indexterm zone="ch-system-gcc gcc-ranlib">
446 <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
447 </indexterm>
448 </listitem>
449 </varlistentry>
450
451 <varlistentry id="gcov">
452 <term><command>gcov</command></term>
453 <listitem>
454 <para>A coverage testing tool; it is used to analyze programs to
455 determine where optimizations will have the most effect</para>
456 <indexterm zone="ch-system-gcc gcov">
457 <primary sortas="b-gcov">gcov</primary>
458 </indexterm>
459 </listitem>
460 </varlistentry>
461
462 <varlistentry id="gcov-dump">
463 <term><command>gcov-dump</command></term>
464 <listitem>
465 <para>Offline gcda and gcno profile dump tool</para>
466 <indexterm zone="ch-system-gcc gcov-dump">
467 <primary sortas="b-gcov-dump">gcov-dump</primary>
468 </indexterm>
469 </listitem>
470 </varlistentry>
471
472 <varlistentry id="gcov-tool">
473 <term><command>gcov-tool</command></term>
474 <listitem>
475 <para>Offline gcda profile processing tool</para>
476 <indexterm zone="ch-system-gcc gcov-tool">
477 <primary sortas="b-gcov-tool">gcov-tool</primary>
478 </indexterm>
479 </listitem>
480 </varlistentry>
481
482 <varlistentry id="libasan">
483 <term><filename class="libraryfile">libasan</filename></term>
484 <listitem>
485 <para>The Address Sanitizer runtime library</para>
486 <indexterm zone="ch-system-gcc libasan">
487 <primary sortas="b-libasan">libasan</primary>
488 </indexterm>
489 </listitem>
490 </varlistentry>
491
492 <varlistentry id="libatomic">
493 <term><filename class="libraryfile">libatomic</filename></term>
494 <listitem>
495 <para>GCC atomic built-in runtime library</para>
496 <indexterm zone="ch-system-gcc libatomic">
497 <primary sortas="b-libatomic">libatomic</primary>
498 </indexterm>
499 </listitem>
500 </varlistentry>
501
502 <varlistentry id="libcc1">
503 <term><filename class="libraryfile">libcc1</filename></term>
504 <listitem>
505 <para>The C preprocessing library</para>
506 <indexterm zone="ch-system-gcc libcc1">
507 <primary sortas="b-libcc1">libcc1</primary>
508 </indexterm>
509 </listitem>
510 </varlistentry>
511
512 <varlistentry id="libgcc">
513 <term><filename class="libraryfile">libgcc</filename></term>
514 <listitem>
515 <para>Contains run-time support for <command>gcc</command></para>
516 <indexterm zone="ch-system-gcc libgcc">
517 <primary sortas="c-libgcc">libgcc</primary>
518 </indexterm>
519 </listitem>
520 </varlistentry>
521
522 <varlistentry id="libgcov">
523 <term><filename class="libraryfile">libgcov</filename></term>
524 <listitem>
525 <para>This library is linked in to a program when GCC is instructed
526 to enable profiling</para>
527 <indexterm zone="ch-system-gcc libgcov">
528 <primary sortas="c-libgcov">libgcov</primary>
529 </indexterm>
530 </listitem>
531 </varlistentry>
532
533 <varlistentry id="libgomp">
534 <term><filename class="libraryfile">libgomp</filename></term>
535 <listitem>
536 <para>GNU implementation of the OpenMP API for multi-platform
537 shared-memory parallel programming in C/C++ and Fortran</para>
538 <indexterm zone="ch-system-gcc libgomp">
539 <primary sortas="c-libgomp">libgomp</primary>
540 </indexterm>
541 </listitem>
542 </varlistentry>
543
544 <varlistentry id="liblsan">
545 <term><filename class="libraryfile">liblsan</filename></term>
546 <listitem>
547 <para>The Leak Sanitizer runtime library</para>
548 <indexterm zone="ch-system-gcc liblsan">
549 <primary sortas="c-liblsan">liblsan</primary>
550 </indexterm>
551 </listitem>
552 </varlistentry>
553
554 <varlistentry id="liblto_plugin">
555 <term><filename class="libraryfile">liblto_plugin</filename></term>
556 <listitem>
557 <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
558 optimizations across compilation units</para>
559 <indexterm zone="ch-system-gcc liblto_plugin">
560 <primary sortas="c-liblto_plugin">liblto_plugin</primary>
561 </indexterm>
562 </listitem>
563 </varlistentry>
564
565 <varlistentry id="libquadmath">
566 <term><filename class="libraryfile">libquadmath</filename></term>
567 <listitem>
568 <para>GCC Quad Precision Math Library API</para>
569 <indexterm zone="ch-system-gcc libquadmath">
570 <primary sortas="c-libquadmath">libquadmath</primary>
571 </indexterm>
572 </listitem>
573 </varlistentry>
574
575 <varlistentry id="libssp">
576 <term><filename class="libraryfile">libssp</filename></term>
577 <listitem>
578 <para>Contains routines supporting GCC's stack-smashing protection
579 functionality</para>
580 <indexterm zone="ch-system-gcc libssp">
581 <primary sortas="c-libssp">libssp</primary>
582 </indexterm>
583 </listitem>
584 </varlistentry>
585
586 <varlistentry id="libstdc">
587 <term><filename class="libraryfile">libstdc++</filename></term>
588 <listitem>
589 <para>The standard C++ library</para>
590 <indexterm zone="ch-system-gcc libstdc">
591 <primary sortas="c-libstdc++">libstdc++</primary>
592 </indexterm>
593 </listitem>
594 </varlistentry>
595
596 <varlistentry id="libstdcfs">
597 <term><filename class="libraryfile">libstdc++fs</filename></term>
598 <listitem>
599 <para>ISO/IEC TS 18822:2015 Filesystem library</para>
600 <indexterm zone="ch-system-gcc libstdcfs">
601 <primary sortas="c-libstdc++fs">libstdc++fs</primary>
602 </indexterm>
603 </listitem>
604 </varlistentry>
605
606 <varlistentry id="libsupc">
607 <term><filename class="libraryfile">libsupc++</filename></term>
608 <listitem>
609 <para>Provides supporting routines for the C++ programming
610 language</para>
611 <indexterm zone="ch-system-gcc libsupc">
612 <primary sortas="c-libsupc++">libsupc++</primary>
613 </indexterm>
614 </listitem>
615 </varlistentry>
616
617 <varlistentry id="libtsan">
618 <term><filename class="libraryfile">libtsan</filename></term>
619 <listitem>
620 <para>The Thread Sanitizer runtime library</para>
621 <indexterm zone="ch-system-gcc libtsan">
622 <primary sortas="c-libtsan">libtsan</primary>
623 </indexterm>
624 </listitem>
625 </varlistentry>
626
627 <varlistentry id="libubsan">
628 <term><filename class="libraryfile">libubsan</filename></term>
629 <listitem>
630 <para>The Undefined Behavior Sanitizer runtime library</para>
631 <indexterm zone="ch-system-gcc libubsan">
632 <primary sortas="c-libubsan">libubsan</primary>
633 </indexterm>
634 </listitem>
635 </varlistentry>
636
637 </variablelist>
638
639 </sect2>
640
641</sect1>
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