source: chapter08/gcc.xml@ 164d38e

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Last change on this file since 164d38e was f36db31, checked in by Xi Ruoyao <xry111@…>, 3 years ago

ch08/gcc: /usr/lib/bfd-plugins is already created by binutils

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