source: chapter08/gcc.xml@ 6e18f2f

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Last change on this file since 6e18f2f was 6e18f2f, checked in by Pierre Labastie <pieere@…>, 4 years ago

Move iana-etc and the creation of a test /etc/hosts earier in the build, so
that 2 more gcc tests pass.

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/branches/cross2@11940 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
  • Property mode set to 100644
File size: 22.2 KB
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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>Six tests related to get_time are known to fail. These are
125 apparently related to the en_HK locale.</para>
126
127<!-- don't fail anymore after the move of iana-etc and /etc/hosts
128 <para>Two tests named lookup.cc and reverse.cc in experimental/net
129 are known to fail in LFS chroot environment because they require
130 /etc/hosts and iana-etc.</para>
131-->
132 <para>A few unexpected failures cannot always be avoided. The GCC developers
133 are usually aware of these issues, but have not resolved them yet.
134 Unless the test results are vastly different from those at the above URL,
135 it is safe to continue.</para>
136
137 <!--note><para>
138 On some combinations of kernel configuration and AMD processors
139 there may be more than 1100 failures in the gcc.target/i386/mpx
140 tests (which are designed to test the MPX option on recent
141 Intel processors). These can safely be ignored on AMD
142 processors. These tests will also fail on Intel processors if MPX support
143 is not enabled in the kernel even though it is present on the CPU.
144 </para></note-->
145
146 <para>Install the package and remove an unneeded directory:</para>
147
148<screen><userinput remap="install">make install
149rm -rf /usr/lib/gcc/$(gcc -dumpmachine)/&gcc-version;/include-fixed/bits/</userinput></screen>
150
151 <para>The GCC build directory is owned by <systemitem class="username">
152 tester</systemitem> now and the ownership of the installed header
153 directory (and its content) will be incorrect. Change the ownership to
154 <systemitem class="username">root</systemitem> user and group:</para>
155
156<screen><userinput remap="install">chown -v -R root:root \
157 /usr/lib/gcc/*linux-gnu/&gcc-version;/include{,-fixed}</userinput></screen>
158
159 <para>Create a symlink required by the <ulink
160 url="https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s09.html">FHS</ulink>
161 for "historical" reasons.</para>
162
163<screen><userinput remap="install">ln -sv ../usr/bin/cpp /lib</userinput></screen>
164 <!-- already done earlier
165 <para>Many packages use the name <command>cc</command> to call the C
166 compiler. To satisfy those packages, create a symlink:</para>
167
168<screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
169 -->
170 <para>Add a compatibility symlink to enable building programs with
171 Link Time Optimization (LTO):</para>
172
173<screen><userinput remap="install">install -v -dm755 /usr/lib/bfd-plugins
174ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/&gcc-version;/liblto_plugin.so \
175 /usr/lib/bfd-plugins/</userinput></screen>
176
177 <para>Now that our final toolchain is in place, it is important to again ensure
178 that compiling and linking will work as expected. We do this by performing
179 some sanity checks:</para>
180
181 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
182 href="adjusting.xml"
183 xpointer="xpointer(//*[@os='a'])"/>
184
185 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
186 href="adjusting.xml"
187 xpointer="xpointer(//*[@os='b'])"/>
188
189 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
190 href="adjusting.xml"
191 xpointer="xpointer(//*[@os='c'])"/>
192
193 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
194 href="adjusting.xml"
195 xpointer="xpointer(//*[@os='d'])"/>
196
197 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
198 href="adjusting.xml"
199 xpointer="xpointer(//*[@os='e'])"/>
200
201 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
202 href="adjusting.xml"
203 xpointer="xpointer(//*[@os='f'])"/>
204
205<screen><computeroutput>/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crt1.o succeeded
206/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crti.o succeeded
207/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crtn.o succeeded</computeroutput></screen>
208
209 <para>Depending on your machine architecture, the above may differ slightly.
210 The difference will be the name of the directory
211 after <filename class="directory">/usr/lib/gcc</filename>. The important
212 thing to look for here is that <command>gcc</command> has found all three
213 <filename>crt*.o</filename> files under the
214 <filename class="directory">/usr/lib</filename> directory.</para>
215
216 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
217 href="adjusting.xml"
218 xpointer="xpointer(//*[@os='g'])"/>
219
220<screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
221
222 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
223 href="adjusting.xml"
224 xpointer="xpointer(//*[@os='h'])"/>
225
226<screen><computeroutput>#include &lt;...&gt; search starts here:
227 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include
228 /usr/local/include
229 /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed
230 /usr/include</computeroutput></screen>
231
232 <para>Again, the directory named after your target triplet may be
233 different than the above, depending on your system architecture.</para>
234
235 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
236 href="adjusting.xml"
237 xpointer="xpointer(//*[@os='i'])"/>
238
239 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
240 href="adjusting.xml"
241 xpointer="xpointer(//*[@os='j'])"/>
242
243 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
244 href="adjusting.xml"
245 xpointer="xpointer(//*[@os='k'])"/>
246
247<screen><computeroutput>SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib64")
248SEARCH_DIR("/usr/local/lib64")
249SEARCH_DIR("/lib64")
250SEARCH_DIR("/usr/lib64")
251SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib")
252SEARCH_DIR("/usr/local/lib")
253SEARCH_DIR("/lib")
254SEARCH_DIR("/usr/lib");</computeroutput></screen>
255
256 <para>A 32-bit system may see a few different directories. For example, here
257 is the output from an i686 machine:</para>
258
259<screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
260SEARCH_DIR("/usr/local/lib32")
261SEARCH_DIR("/lib32")
262SEARCH_DIR("/usr/lib32")
263SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
264SEARCH_DIR("/usr/local/lib")
265SEARCH_DIR("/lib")
266SEARCH_DIR("/usr/lib");</computeroutput></screen>
267
268 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
269 href="adjusting.xml"
270 xpointer="xpointer(//*[@os='l'])"/>
271
272 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
273 href="adjusting.xml"
274 xpointer="xpointer(//*[@os='m'])"/>
275
276 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
277 href="adjusting.xml"
278 xpointer="xpointer(//*[@os='n'])"/>
279
280 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
281 href="adjusting.xml"
282 xpointer="xpointer(//*[@os='o'])"/>
283
284 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
285 href="adjusting.xml"
286 xpointer="xpointer(//*[@os='p'])"/>
287
288 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
289 href="adjusting.xml"
290 xpointer="xpointer(//*[@os='q'])"/>
291
292 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
293 href="adjusting.xml"
294 xpointer="xpointer(//*[@os='r'])"/>
295
296 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
297 href="adjusting.xml"
298 xpointer="xpointer(//*[@os='s'])"/>
299
300 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
301 href="adjusting.xml"
302 xpointer="xpointer(//*[@os='t'])"/>
303
304 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
305 href="adjusting.xml"
306 xpointer="xpointer(//*[@os='u'])"/>
307
308 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
309 href="adjusting.xml"
310 xpointer="xpointer(//*[@os='v'])"/>
311
312 <para>Finally, move a misplaced file:</para>
313
314<screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
315mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
316
317 </sect2>
318
319 <sect2 id="contents-gcc" role="content">
320 <title>Contents of GCC</title>
321
322 <segmentedlist>
323 <segtitle>Installed programs</segtitle>
324 <segtitle>Installed libraries</segtitle>
325 <segtitle>Installed directories</segtitle>
326
327 <seglistitem>
328 <seg>c++, cc (link to gcc), cpp, g++, gcc,
329 gcc-ar, gcc-nm, gcc-ranlib, gcov, gcov-dump, and gcov-tool</seg>
330
331 <seg>libasan.{a,so}, libatomic.{a,so}, libcc1.so, libgcc.a, libgcc_eh.a,
332 libgcc_s.so, libgcov.a, libgomp.{a,so}, libitm.{a,so},
333 liblsan.{a,so}, liblto_plugin.so,
334 libquadmath.{a,so}, libssp.{a,so}, libssp_nonshared.a,
335 libstdc++.{a,so}, libstdc++fs.a, libsupc++.a, libtsan.{a,so},
336 and libubsan.{a,so}</seg>
337
338 <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc, and
339 /usr/share/gcc-&gcc-version;</seg>
340 </seglistitem>
341 </segmentedlist>
342
343 <variablelist>
344 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
345 <?dbfo list-presentation="list"?>
346 <?dbhtml list-presentation="table"?>
347
348 <varlistentry id="c">
349 <term><command>c++</command></term>
350 <listitem>
351 <para>The C++ compiler</para>
352 <indexterm zone="ch-system-gcc c">
353 <primary sortas="b-c++">c++</primary>
354 </indexterm>
355 </listitem>
356 </varlistentry>
357
358 <varlistentry id="cc">
359 <term><command>cc</command></term>
360 <listitem>
361 <para>The C compiler</para>
362 <indexterm zone="ch-system-gcc cc">
363 <primary sortas="b-cc">cc</primary>
364 </indexterm>
365 </listitem>
366 </varlistentry>
367
368 <varlistentry id="cpp">
369 <term><command>cpp</command></term>
370 <listitem>
371 <para>The C preprocessor; it is used by the compiler to expand the
372 #include, #define, and similar statements in the source files</para>
373 <indexterm zone="ch-system-gcc cpp">
374 <primary sortas="b-cpp">cpp</primary>
375 </indexterm>
376 </listitem>
377 </varlistentry>
378
379 <varlistentry id="g">
380 <term><command>g++</command></term>
381 <listitem>
382 <para>The C++ compiler</para>
383 <indexterm zone="ch-system-gcc g">
384 <primary sortas="b-g++">g++</primary>
385 </indexterm>
386 </listitem>
387 </varlistentry>
388
389 <varlistentry id="gcc">
390 <term><command>gcc</command></term>
391 <listitem>
392 <para>The C compiler</para>
393 <indexterm zone="ch-system-gcc gcc">
394 <primary sortas="b-gcc">gcc</primary>
395 </indexterm>
396 </listitem>
397 </varlistentry>
398
399 <varlistentry id="gcc-ar">
400 <term><command>gcc-ar</command></term>
401 <listitem>
402 <para>A wrapper around <command>ar</command> that adds a
403 plugin to the command line. This program is only used
404 to add "link time optimization" and is not useful with the
405 default build options</para>
406 <indexterm zone="ch-system-gcc gcc-ar">
407 <primary sortas="b-gcc-ar">gc-ar</primary>
408 </indexterm>
409 </listitem>
410 </varlistentry>
411
412 <varlistentry id="gcc-nm">
413 <term><command>gcc-nm</command></term>
414 <listitem>
415 <para>A wrapper around <command>nm</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-nm">
420 <primary sortas="b-gcc-nm">gc-nm</primary>
421 </indexterm>
422 </listitem>
423 </varlistentry>
424
425 <varlistentry id="gcc-ranlib">
426 <term><command>gcc-ranlib</command></term>
427 <listitem>
428 <para>A wrapper around <command>ranlib</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-ranlib">
433 <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
434 </indexterm>
435 </listitem>
436 </varlistentry>
437
438 <varlistentry id="gcov">
439 <term><command>gcov</command></term>
440 <listitem>
441 <para>A coverage testing tool; it is used to analyze programs to
442 determine where optimizations will have the most effect</para>
443 <indexterm zone="ch-system-gcc gcov">
444 <primary sortas="b-gcov">gcov</primary>
445 </indexterm>
446 </listitem>
447 </varlistentry>
448
449 <varlistentry id="gcov-dump">
450 <term><command>gcov-dump</command></term>
451 <listitem>
452 <para>Offline gcda and gcno profile dump tool</para>
453 <indexterm zone="ch-system-gcc gcov-dump">
454 <primary sortas="b-gcov-dump">gcov-dump</primary>
455 </indexterm>
456 </listitem>
457 </varlistentry>
458
459 <varlistentry id="gcov-tool">
460 <term><command>gcov-tool</command></term>
461 <listitem>
462 <para>Offline gcda profile processing tool</para>
463 <indexterm zone="ch-system-gcc gcov-tool">
464 <primary sortas="b-gcov-tool">gcov-tool</primary>
465 </indexterm>
466 </listitem>
467 </varlistentry>
468
469 <varlistentry id="libasan">
470 <term><filename class="libraryfile">libasan</filename></term>
471 <listitem>
472 <para>The Address Sanitizer runtime library</para>
473 <indexterm zone="ch-system-gcc libasan">
474 <primary sortas="b-libasan">libasan</primary>
475 </indexterm>
476 </listitem>
477 </varlistentry>
478
479 <varlistentry id="libatomic">
480 <term><filename class="libraryfile">libatomic</filename></term>
481 <listitem>
482 <para>GCC atomic built-in runtime library</para>
483 <indexterm zone="ch-system-gcc libatomic">
484 <primary sortas="b-libatomic">libatomic</primary>
485 </indexterm>
486 </listitem>
487 </varlistentry>
488
489 <varlistentry id="libcc1">
490 <term><filename class="libraryfile">libcc1</filename></term>
491 <listitem>
492 <para>The C preprocessing library</para>
493 <indexterm zone="ch-system-gcc libcc1">
494 <primary sortas="b-libcc1">libcc1</primary>
495 </indexterm>
496 </listitem>
497 </varlistentry>
498
499 <varlistentry id="libgcc">
500 <term><filename class="libraryfile">libgcc</filename></term>
501 <listitem>
502 <para>Contains run-time support for <command>gcc</command></para>
503 <indexterm zone="ch-system-gcc libgcc">
504 <primary sortas="c-libgcc">libgcc</primary>
505 </indexterm>
506 </listitem>
507 </varlistentry>
508
509 <varlistentry id="libgcov">
510 <term><filename class="libraryfile">libgcov</filename></term>
511 <listitem>
512 <para>This library is linked in to a program when GCC is instructed
513 to enable profiling</para>
514 <indexterm zone="ch-system-gcc libgcov">
515 <primary sortas="c-libgcov">libgcov</primary>
516 </indexterm>
517 </listitem>
518 </varlistentry>
519
520 <varlistentry id="libgomp">
521 <term><filename class="libraryfile">libgomp</filename></term>
522 <listitem>
523 <para>GNU implementation of the OpenMP API for multi-platform
524 shared-memory parallel programming in C/C++ and Fortran</para>
525 <indexterm zone="ch-system-gcc libgomp">
526 <primary sortas="c-libgomp">libgomp</primary>
527 </indexterm>
528 </listitem>
529 </varlistentry>
530
531 <varlistentry id="liblsan">
532 <term><filename class="libraryfile">liblsan</filename></term>
533 <listitem>
534 <para>The Leak Sanitizer runtime library</para>
535 <indexterm zone="ch-system-gcc liblsan">
536 <primary sortas="c-liblsan">liblsan</primary>
537 </indexterm>
538 </listitem>
539 </varlistentry>
540
541 <varlistentry id="liblto_plugin">
542 <term><filename class="libraryfile">liblto_plugin</filename></term>
543 <listitem>
544 <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
545 optimizations across compilation units</para>
546 <indexterm zone="ch-system-gcc liblto_plugin">
547 <primary sortas="c-liblto_plugin">liblto_plugin</primary>
548 </indexterm>
549 </listitem>
550 </varlistentry>
551
552 <varlistentry id="libquadmath">
553 <term><filename class="libraryfile">libquadmath</filename></term>
554 <listitem>
555 <para>GCC Quad Precision Math Library API</para>
556 <indexterm zone="ch-system-gcc libquadmath">
557 <primary sortas="c-libquadmath">libquadmath</primary>
558 </indexterm>
559 </listitem>
560 </varlistentry>
561
562 <varlistentry id="libssp">
563 <term><filename class="libraryfile">libssp</filename></term>
564 <listitem>
565 <para>Contains routines supporting GCC's stack-smashing protection
566 functionality</para>
567 <indexterm zone="ch-system-gcc libssp">
568 <primary sortas="c-libssp">libssp</primary>
569 </indexterm>
570 </listitem>
571 </varlistentry>
572
573 <varlistentry id="libstdc">
574 <term><filename class="libraryfile">libstdc++</filename></term>
575 <listitem>
576 <para>The standard C++ library</para>
577 <indexterm zone="ch-system-gcc libstdc">
578 <primary sortas="c-libstdc++">libstdc++</primary>
579 </indexterm>
580 </listitem>
581 </varlistentry>
582
583 <varlistentry id="libstdcfs">
584 <term><filename class="libraryfile">libstdc++fs</filename></term>
585 <listitem>
586 <para>ISO/IEC TS 18822:2015 Filesystem library</para>
587 <indexterm zone="ch-system-gcc libstdcfs">
588 <primary sortas="c-libstdc++fs">libstdc++fs</primary>
589 </indexterm>
590 </listitem>
591 </varlistentry>
592
593 <varlistentry id="libsupc">
594 <term><filename class="libraryfile">libsupc++</filename></term>
595 <listitem>
596 <para>Provides supporting routines for the C++ programming
597 language</para>
598 <indexterm zone="ch-system-gcc libsupc">
599 <primary sortas="c-libsupc++">libsupc++</primary>
600 </indexterm>
601 </listitem>
602 </varlistentry>
603
604 <varlistentry id="libtsan">
605 <term><filename class="libraryfile">libtsan</filename></term>
606 <listitem>
607 <para>The Thread Sanitizer runtime library</para>
608 <indexterm zone="ch-system-gcc libtsan">
609 <primary sortas="c-libtsan">libtsan</primary>
610 </indexterm>
611 </listitem>
612 </varlistentry>
613
614 <varlistentry id="libubsan">
615 <term><filename class="libraryfile">libubsan</filename></term>
616 <listitem>
617 <para>The Undefined Behavior Sanitizer runtime library</para>
618 <indexterm zone="ch-system-gcc libubsan">
619 <primary sortas="c-libubsan">libubsan</primary>
620 </indexterm>
621 </listitem>
622 </varlistentry>
623
624 </variablelist>
625
626 </sect2>
627
628</sect1>
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