source: chapter06/gcc.xml@ 8671978

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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-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>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">SED=sed \
62../configure --prefix=/usr \
63 --enable-languages=c,c++ \
64 --disable-multilib \
65 --disable-bootstrap \
66 --with-system-zlib</userinput></screen>
67
68 <para>Note that for other languages, there are some prerequisites that
69 are not yet available. See the
70 <ulink url="&blfs-book;general/gcc.html">BLFS Book</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><envar>SED=sed</envar></term>
78 <listitem>
79 <para>Setting this environment variable prevents a hard-coded
80 path to /tools/bin/sed.</para>
81 </listitem>
82 </varlistentry>
83 <!--
84 <varlistentry>
85 <term><parameter>- -disable-libmpx</parameter></term>
86 <listitem>
87 <para>This switch tells GCC to not build mpx (Memory Protection
88 Extensions) that can cause problems on some processors. It has
89 been removed from the next version of gcc.</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 as a non-privileged user, but do not stop at errors:</para>
117
118<screen><userinput remap="test">chown -Rv nobody .
119su nobody -s /bin/bash -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 <para>Six tests related to get_time are known to fail. These are
133 apparently related to the en_HK locale.</para>
134
135 <para>Two tests named lookup.cc and reverse.cc in experimental/net
136 are known to fail in LFS chroot environment because they require
137 /etc/hosts and iana-etc.</para>
138
139 <para>Two tests named pr57193.c and pr90178.c are known to fail.</para>
140
141 <para>A few unexpected failures cannot always be avoided. The GCC developers
142 are usually aware of these issues, but have not resolved them yet.
143 Unless the test results are vastly different from those at the above URL,
144 it is safe to continue.</para>
145
146 <!--note><para>
147 On some combinations of kernel configuration and AMD processors
148 there may be more than 1100 failures in the gcc.target/i386/mpx
149 tests (which are designed to test the MPX option on recent
150 Intel processors). These can safely be ignored on AMD
151 processors. These tests will also fail on Intel processors if MPX support
152 is not enabled in the kernel even though it is present on the CPU.
153 </para></note-->
154
155 <para>Install the package and remove an unneeded directory:</para>
156
157<screen><userinput remap="install">make install
158rm -rf /usr/lib/gcc/$(gcc -dumpmachine)/&gcc-version;/include-fixed/bits/</userinput></screen>
159
160 <para>The GCC build directory is owned by <systemitem class="username">
161 nobody</systemitem> now and the ownership of the installed header
162 directory (and its content) will be incorrect. Change the ownership to
163 <systemitem class="username">root</systemitem> user and group:</para>
164
165<screen><userinput remap="install">chown -v -R root:root \
166 /usr/lib/gcc/*linux-gnu/&gcc-version;/include{,-fixed}</userinput></screen>
167
168 <para>Create a symlink required by the <ulink
169 url="https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s09.html">FHS</ulink>
170 for "historical" reasons.</para>
171
172<screen><userinput remap="install">ln -sv ../usr/bin/cpp /lib</userinput></screen>
173
174 <para>Many packages use the name <command>cc</command> to call the C
175 compiler. To satisfy those packages, create a symlink:</para>
176
177<screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
178
179 <para>Add a compatibility symlink to enable building programs with
180 Link Time Optimization (LTO):</para>
181
182<screen><userinput remap="install">install -v -dm755 /usr/lib/bfd-plugins
183ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/&gcc-version;/liblto_plugin.so \
184 /usr/lib/bfd-plugins/</userinput></screen>
185
186 <para>Now that our final toolchain is in place, it is important to again ensure
187 that compiling and linking will work as expected. We do this by performing
188 the same sanity checks as we did earlier in the chapter:</para>
189
190 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
191 href="adjusting.xml"
192 xpointer="xpointer(//*[@os='a'])"/>
193
194 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
195 href="adjusting.xml"
196 xpointer="xpointer(//*[@os='b'])"/>
197
198 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
199 href="adjusting.xml"
200 xpointer="xpointer(//*[@os='c'])"/>
201
202 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
203 href="adjusting.xml"
204 xpointer="xpointer(//*[@os='d'])"/>
205
206 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
207 href="adjusting.xml"
208 xpointer="xpointer(//*[@os='e'])"/>
209
210 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
211 href="adjusting.xml"
212 xpointer="xpointer(//*[@os='f'])"/>
213
214<screen><computeroutput>/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crt1.o succeeded
215/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crti.o succeeded
216/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crtn.o succeeded</computeroutput></screen>
217
218 <para>Depending on your machine architecture, the above may differ slightly,
219 the difference usually being the name of the directory
220 after <filename class="directory">/usr/lib/gcc</filename>. The important
221 thing to look for here is that <command>gcc</command> has found all three
222 <filename>crt*.o</filename> files under the
223 <filename class="directory">/usr/lib</filename> directory.</para>
224
225 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
226 href="adjusting.xml"
227 xpointer="xpointer(//*[@os='g'])"/>
228
229<screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
230
231 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
232 href="adjusting.xml"
233 xpointer="xpointer(//*[@os='h'])"/>
234
235<screen><computeroutput>#include &lt;...&gt; search starts here:
236 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include
237 /usr/local/include
238 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed
239 /usr/include</computeroutput></screen>
240
241 <para>Again, note that the directory named after your target triplet may be
242 different than the above, depending on your architecture.</para>
243
244<!-- This appears to be obsolete
245
246 <note><para>As of version 4.3.0, GCC now unconditionally installs the
247 <filename>limits.h</filename> file into the private
248 <filename class="directory">include-fixed</filename> directory, and that
249 directory is required to be in place.</para></note>
250-->
251
252 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
253 href="adjusting.xml"
254 xpointer="xpointer(//*[@os='i'])"/>
255
256 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
257 href="adjusting.xml"
258 xpointer="xpointer(//*[@os='j'])"/>
259
260 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
261 href="adjusting.xml"
262 xpointer="xpointer(//*[@os='k'])"/>
263
264<screen><computeroutput>SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib64")
265SEARCH_DIR("/usr/local/lib64")
266SEARCH_DIR("/lib64")
267SEARCH_DIR("/usr/lib64")
268SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib")
269SEARCH_DIR("/usr/local/lib")
270SEARCH_DIR("/lib")
271SEARCH_DIR("/usr/lib");</computeroutput></screen>
272
273 <para>A 32-bit system may see a few different directories. For example, here
274 is the output from an i686 machine:</para>
275
276<screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
277SEARCH_DIR("/usr/local/lib32")
278SEARCH_DIR("/lib32")
279SEARCH_DIR("/usr/lib32")
280SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
281SEARCH_DIR("/usr/local/lib")
282SEARCH_DIR("/lib")
283SEARCH_DIR("/usr/lib");</computeroutput></screen>
284
285 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
286 href="adjusting.xml"
287 xpointer="xpointer(//*[@os='l'])"/>
288
289 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
290 href="adjusting.xml"
291 xpointer="xpointer(//*[@os='m'])"/>
292
293 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
294 href="adjusting.xml"
295 xpointer="xpointer(//*[@os='n'])"/>
296
297 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
298 href="adjusting.xml"
299 xpointer="xpointer(//*[@os='o'])"/>
300
301 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
302 href="adjusting.xml"
303 xpointer="xpointer(//*[@os='p'])"/>
304
305 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
306 href="adjusting.xml"
307 xpointer="xpointer(//*[@os='q'])"/>
308
309 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
310 href="adjusting.xml"
311 xpointer="xpointer(//*[@os='r'])"/>
312
313 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
314 href="adjusting.xml"
315 xpointer="xpointer(//*[@os='s'])"/>
316
317 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
318 href="adjusting.xml"
319 xpointer="xpointer(//*[@os='t'])"/>
320
321 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
322 href="adjusting.xml"
323 xpointer="xpointer(//*[@os='u'])"/>
324
325 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
326 href="adjusting.xml"
327 xpointer="xpointer(//*[@os='v'])"/>
328
329 <para>Finally, move a misplaced file:</para>
330
331<screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
332mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
333
334 </sect2>
335
336 <sect2 id="contents-gcc" role="content">
337 <title>Contents of GCC</title>
338
339 <segmentedlist>
340 <segtitle>Installed programs</segtitle>
341 <segtitle>Installed libraries</segtitle>
342 <segtitle>Installed directories</segtitle>
343
344 <seglistitem>
345 <seg>c++, cc (link to gcc), cpp, g++, gcc,
346 gcc-ar, gcc-nm, gcc-ranlib, gcov, gcov-dump, and gcov-tool</seg>
347
348 <seg>libasan.{a,so}, libatomic.{a,so}, libcc1.so, libgcc.a, libgcc_eh.a,
349 libgcc_s.so, libgcov.a, libgomp.{a,so}, libitm.{a,so},
350 liblsan.{a,so}, liblto_plugin.so,
351 libquadmath.{a,so}, libssp.{a,so}, libssp_nonshared.a,
352 libstdc++.{a,so}, libstdc++fs.a, libsupc++.a, libtsan.{a,so},
353 and libubsan.{a,so}</seg>
354
355 <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc, and
356 /usr/share/gcc-&gcc-version;</seg>
357 </seglistitem>
358 </segmentedlist>
359
360 <variablelist>
361 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
362 <?dbfo list-presentation="list"?>
363 <?dbhtml list-presentation="table"?>
364
365 <varlistentry id="c">
366 <term><command>c++</command></term>
367 <listitem>
368 <para>The C++ compiler</para>
369 <indexterm zone="ch-system-gcc c">
370 <primary sortas="b-c++">c++</primary>
371 </indexterm>
372 </listitem>
373 </varlistentry>
374
375 <varlistentry id="cc">
376 <term><command>cc</command></term>
377 <listitem>
378 <para>The C compiler</para>
379 <indexterm zone="ch-system-gcc cc">
380 <primary sortas="b-cc">cc</primary>
381 </indexterm>
382 </listitem>
383 </varlistentry>
384
385 <varlistentry id="cpp">
386 <term><command>cpp</command></term>
387 <listitem>
388 <para>The C preprocessor; it is used by the compiler to expand the
389 #include, #define, and similar statements in the source files</para>
390 <indexterm zone="ch-system-gcc cpp">
391 <primary sortas="b-cpp">cpp</primary>
392 </indexterm>
393 </listitem>
394 </varlistentry>
395
396 <varlistentry id="g">
397 <term><command>g++</command></term>
398 <listitem>
399 <para>The C++ compiler</para>
400 <indexterm zone="ch-system-gcc g">
401 <primary sortas="b-g++">g++</primary>
402 </indexterm>
403 </listitem>
404 </varlistentry>
405
406 <varlistentry id="gcc">
407 <term><command>gcc</command></term>
408 <listitem>
409 <para>The C compiler</para>
410 <indexterm zone="ch-system-gcc gcc">
411 <primary sortas="b-gcc">gcc</primary>
412 </indexterm>
413 </listitem>
414 </varlistentry>
415
416 <varlistentry id="gcc-ar">
417 <term><command>gcc-ar</command></term>
418 <listitem>
419 <para>A wrapper around <command>ar</command> that adds a
420 plugin to the command line. This program is only used
421 to add "link time optimization" and is not useful with the
422 default build options</para>
423 <indexterm zone="ch-system-gcc gcc-ar">
424 <primary sortas="b-gcc-ar">gc-ar</primary>
425 </indexterm>
426 </listitem>
427 </varlistentry>
428
429 <varlistentry id="gcc-nm">
430 <term><command>gcc-nm</command></term>
431 <listitem>
432 <para>A wrapper around <command>nm</command> that adds a
433 plugin to the command line. This program is only used
434 to add "link time optimization" and is not useful with the
435 default build options</para>
436 <indexterm zone="ch-system-gcc gcc-nm">
437 <primary sortas="b-gcc-nm">gc-nm</primary>
438 </indexterm>
439 </listitem>
440 </varlistentry>
441
442 <varlistentry id="gcc-ranlib">
443 <term><command>gcc-ranlib</command></term>
444 <listitem>
445 <para>A wrapper around <command>ranlib</command> that adds a
446 plugin to the command line. This program is only used
447 to add "link time optimization" and is not useful with the
448 default build options</para>
449 <indexterm zone="ch-system-gcc gcc-ranlib">
450 <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
451 </indexterm>
452 </listitem>
453 </varlistentry>
454
455 <varlistentry id="gcov">
456 <term><command>gcov</command></term>
457 <listitem>
458 <para>A coverage testing tool; it is used to analyze programs to
459 determine where optimizations will have the most effect</para>
460 <indexterm zone="ch-system-gcc gcov">
461 <primary sortas="b-gcov">gcov</primary>
462 </indexterm>
463 </listitem>
464 </varlistentry>
465
466 <varlistentry id="gcov-dump">
467 <term><command>gcov-dump</command></term>
468 <listitem>
469 <para>Offline gcda and gcno profile dump tool</para>
470 <indexterm zone="ch-system-gcc gcov-dump">
471 <primary sortas="b-gcov-dump">gcov-dump</primary>
472 </indexterm>
473 </listitem>
474 </varlistentry>
475
476 <varlistentry id="gcov-tool">
477 <term><command>gcov-tool</command></term>
478 <listitem>
479 <para>Offline gcda profile processing tool</para>
480 <indexterm zone="ch-system-gcc gcov-tool">
481 <primary sortas="b-gcov-tool">gcov-tool</primary>
482 </indexterm>
483 </listitem>
484 </varlistentry>
485
486 <varlistentry id="libasan">
487 <term><filename class="libraryfile">libasan</filename></term>
488 <listitem>
489 <para>The Address Sanitizer runtime library</para>
490 <indexterm zone="ch-system-gcc libasan">
491 <primary sortas="b-libasan">libasan</primary>
492 </indexterm>
493 </listitem>
494 </varlistentry>
495
496 <varlistentry id="libatomic">
497 <term><filename class="libraryfile">libatomic</filename></term>
498 <listitem>
499 <para>GCC atomic built-in runtime library</para>
500 <indexterm zone="ch-system-gcc libatomic">
501 <primary sortas="b-libatomic">libatomic</primary>
502 </indexterm>
503 </listitem>
504 </varlistentry>
505
506 <varlistentry id="libcc1">
507 <term><filename class="libraryfile">libcc1</filename></term>
508 <listitem>
509 <para>The C preprocessing library</para>
510 <indexterm zone="ch-system-gcc libcc1">
511 <primary sortas="b-libcc1">libcc1</primary>
512 </indexterm>
513 </listitem>
514 </varlistentry>
515
516 <varlistentry id="libgcc">
517 <term><filename class="libraryfile">libgcc</filename></term>
518 <listitem>
519 <para>Contains run-time support for <command>gcc</command></para>
520 <indexterm zone="ch-system-gcc libgcc">
521 <primary sortas="c-libgcc">libgcc</primary>
522 </indexterm>
523 </listitem>
524 </varlistentry>
525
526 <varlistentry id="libgcov">
527 <term><filename class="libraryfile">libgcov</filename></term>
528 <listitem>
529 <para>This library is linked in to a program when GCC is instructed
530 to enable profiling</para>
531 <indexterm zone="ch-system-gcc libgcov">
532 <primary sortas="c-libgcov">libgcov</primary>
533 </indexterm>
534 </listitem>
535 </varlistentry>
536
537 <varlistentry id="libgomp">
538 <term><filename class="libraryfile">libgomp</filename></term>
539 <listitem>
540 <para>GNU implementation of the OpenMP API for multi-platform
541 shared-memory parallel programming in C/C++ and Fortran</para>
542 <indexterm zone="ch-system-gcc libgomp">
543 <primary sortas="c-libgomp">libgomp</primary>
544 </indexterm>
545 </listitem>
546 </varlistentry>
547
548 <varlistentry id="liblsan">
549 <term><filename class="libraryfile">liblsan</filename></term>
550 <listitem>
551 <para>The Leak Sanitizer runtime library</para>
552 <indexterm zone="ch-system-gcc liblsan">
553 <primary sortas="c-liblsan">liblsan</primary>
554 </indexterm>
555 </listitem>
556 </varlistentry>
557
558 <varlistentry id="liblto_plugin">
559 <term><filename class="libraryfile">liblto_plugin</filename></term>
560 <listitem>
561 <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
562 optimizations across compilation units</para>
563 <indexterm zone="ch-system-gcc liblto_plugin">
564 <primary sortas="c-liblto_plugin">liblto_plugin</primary>
565 </indexterm>
566 </listitem>
567 </varlistentry>
568
569 <varlistentry id="libquadmath">
570 <term><filename class="libraryfile">libquadmath</filename></term>
571 <listitem>
572 <para>GCC Quad Precision Math Library API</para>
573 <indexterm zone="ch-system-gcc libquadmath">
574 <primary sortas="c-libquadmath">libquadmath</primary>
575 </indexterm>
576 </listitem>
577 </varlistentry>
578
579 <varlistentry id="libssp">
580 <term><filename class="libraryfile">libssp</filename></term>
581 <listitem>
582 <para>Contains routines supporting GCC's stack-smashing protection
583 functionality</para>
584 <indexterm zone="ch-system-gcc libssp">
585 <primary sortas="c-libssp">libssp</primary>
586 </indexterm>
587 </listitem>
588 </varlistentry>
589
590 <varlistentry id="libstdc">
591 <term><filename class="libraryfile">libstdc++</filename></term>
592 <listitem>
593 <para>The standard C++ library</para>
594 <indexterm zone="ch-system-gcc libstdc">
595 <primary sortas="c-libstdc++">libstdc++</primary>
596 </indexterm>
597 </listitem>
598 </varlistentry>
599
600 <varlistentry id="libstdcfs">
601 <term><filename class="libraryfile">libstdc++fs</filename></term>
602 <listitem>
603 <para>ISO/IEC TS 18822:2015 Filesystem library</para>
604 <indexterm zone="ch-system-gcc libstdcfs">
605 <primary sortas="c-libstdc++fs">libstdc++fs</primary>
606 </indexterm>
607 </listitem>
608 </varlistentry>
609
610 <varlistentry id="libsupc">
611 <term><filename class="libraryfile">libsupc++</filename></term>
612 <listitem>
613 <para>Provides supporting routines for the C++ programming
614 language</para>
615 <indexterm zone="ch-system-gcc libsupc">
616 <primary sortas="c-libsupc++">libsupc++</primary>
617 </indexterm>
618 </listitem>
619 </varlistentry>
620
621 <varlistentry id="libtsan">
622 <term><filename class="libraryfile">libtsan</filename></term>
623 <listitem>
624 <para>The Thread Sanitizer runtime library</para>
625 <indexterm zone="ch-system-gcc libtsan">
626 <primary sortas="c-libtsan">libtsan</primary>
627 </indexterm>
628 </listitem>
629 </varlistentry>
630
631 <varlistentry id="libubsan">
632 <term><filename class="libraryfile">libubsan</filename></term>
633 <listitem>
634 <para>The Undefined Behavior Sanitizer runtime library</para>
635 <indexterm zone="ch-system-gcc libubsan">
636 <primary sortas="c-libubsan">libubsan</primary>
637 </indexterm>
638 </listitem>
639 </varlistentry>
640
641 </variablelist>
642
643 </sect2>
644
645</sect1>
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