libatomic/ChangeLog

   1 2020-09-11  Tom de Vries  <tdevries@suse.de>
   2
   3         PR target/96898
   4         * configure.tgt: Add nvptx.
   5         * libatomic_i.h (MASK_8, INVERT_MASK_8): New macro definition.
   6         * config/nvptx/host-config.h: New file.
   7         * config/nvptx/lock.c: New file.
   8
   9 2020-09-07  Tom de Vries  <tdevries@suse.de>
  10
  11         * testsuite/libatomic.c/atomic-generic.c: Include string.h.
  12
  13 2020-07-14  David Edelsohn  <dje.gcc@gmail.com>
  14
  15         * config/t-aix: Set BITS from compiler cpp macro.
  16
  17 2020-06-22  David Edelsohn  <dje.gcc@gmail.com>
  18
  19         * Makefile.am: Use -include.
  20         * Makefile.in: Regenerate.
  21
  22 2020-06-21  David Edelsohn  <dje.gcc@gmail.com>
  23
  24         * Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
  25         * Makefile.in: Regenerate.
  26         * configure.ac (tmake_file): Substitute.
  27         * configure: Regenerate.
  28         * configure.tgt (powerpc-ibm-aix*): Define tmake_file.
  29         * config/t-aix: New file.
  30
  31 2020-06-01  Uroš Bizjak  <ubizjak@gmail.com>
  32
  33         * config/x86/fenv.c (struct fenv): Add __attribute__ ((gcc_struct)).
  34
  35 2020-05-29  H.J. Lu  <hjl.tools@gmail.com>
  36
  37         PR bootstrap/95413
  38         * configure: Regenerated.
  39
  40 2020-05-15  H.J. Lu  <hongjiu.lu@intel.com>
  41
  42         PR bootstrap/95147
  43         * configure: Regenerated.
  44
  45 2020-05-14  H.J. Lu  <hongjiu.lu@intel.com>
  46
  47         * configure: Regenerated.
  48
  49 2020-05-06  Uroš Bizjak  <ubizjak@gmail.com>
  50
  51         * config/x86/fenv.c (__math_force_eval): Remove.
  52         (__math_force_eval_div): New define.
  53         (__atomic_deraiseexcept): Use __math_force_eval_div to use
  54         generic division to generate INVALID, DIVZERO and INEXACT
  55         exceptions.
  56
  57 2020-05-01  Uroš Bizjak  <ubizjak@gmail.com>
  58
  59         * config/x86/fenv.c (__math_force_eval): New define.
  60         (__atomic_feraiseexcept): Use __math_force_eval to evaluate
  61         generic division to generate INVALID and DIVZERO exceptions.
  62
  63 2020-04-19  Uroš Bizjak  <ubizjak@gmail.com>
  64
  65         * config/x86/fenv.c (__atomic_feraiseexcept) [__SSE_MATH__]:
  66         Remove unneeded assignments to volatile memory.
  67
  68 2020-04-06  Maciej W. Rozycki  <macro@wdc.com>
  69
  70         * configure.ac: Add testsuite/libatomic-site-extra.exp to output
  71         files.
  72         * configure: Regenerate.
  73         * libatomic/testsuite/libatomic-site-extra.exp.in: New file.
  74         * testsuite/Makefile.am (EXTRA_DEJAGNU_SITE_CONFIG): New
  75         variable.
  76         * testsuite/Makefile.in: Regenerate.
  77
  78 2020-02-22  Jakub Jelinek  <jakub@redhat.com>
  79
  80         PR other/55930
  81         * Makefile.am (M_DEPS): Guard the empty definition with
  82         @AMDEP_FALSE@ rather than @AMDEP_TRUE@.
  83         * Makefile.in: Regenerated.
  84
  85 2020-02-22  Richard Purdie  <rpurdie@rpsys.net>
  86
  87         PR other/55930
  88         * Makefile.am (M_DEPS): Honor -disable-dependency-tracking.
  89         * Makefile.in: Regenerated.
  90
  91 2020-01-24  Maciej W. Rozycki  <macro@wdc.com>
  92
  93         * configure.ac: Handle `--with-toolexeclibdir='.
  94         * Makefile.in: Regenerate.
  95         * aclocal.m4: Regenerate.
  96         * configure: Regenerate.
  97         * testsuite/Makefile.in: Regenerate.
  98
  99 2020-01-01  Jakub Jelinek  <jakub@redhat.com>
 100
 101         Update copyright years.
 102
 103 2019-09-27  Maciej W. Rozycki  <macro@wdc.com>
 104
 105         * configure: Regenerate.
 106
 107 2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
 108
 109         * configure.tgt: Handle arm*-*-uclinux*.
 110         * configure: Regenerate.
 111
 112 2019-09-03  Chung-Lin Tang  <cltang@codesourcery.com>
 113
 114         PR other/79543
 115         * acinclude.m4 (LIBAT_CHECK_LINKER_FEATURES): Fix GNU ld --version
 116         scanning to conform to the GNU Coding Standards.
 117         * configure: Regenerate.
 118
 119 2019-06-14  Matt Thomas  <matt@3am-software.com>
 120             Matthew Green  <mrg@eterna.com.au>
 121             Nick Hudson  <skrll@netbsd.org>
 122             Maya Rashish  <coypu@sdf.org>
 123
 124         * configure.tgt (arm*): Handle NetBSD in the same way as FreeBSD.
 125
 126 2019-01-01  Jakub Jelinek  <jakub@redhat.com>
 127
 128         Update copyright years.
 129
 130 2018-10-31  Joseph Myers  <joseph@codesourcery.com>
 131
 132         PR bootstrap/82856
 133         * Makefile.am: Include multilib.am.
 134         * acinclude.m4: Use AC_LANG_SOURCE.
 135         * configure.ac: Remove AC_PREREQ.
 136         * testsuite/Makefile.am (RUNTEST): Remove quotes.
 137         * Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
 138         Regenerate.
 139
 140 2018-06-21  Christophe Lyon  <christophe.lyon@linaro.org>
 141
 142         * config/arm/arm-config.h (__ARM_ARCH__): Remove definitions, use
 143         __ARM_ARCH instead. Use __ARM_FEATURE_LDREX to define HAVE_STREX
 144         and HAVE_STREXBHD
 145
 146 2018-05-23  Florian Weimer  <fweimer@redhat.com>
 147
 148         PR libgcc/60790
 149         x86: Do not assume ELF constructors run before IFUNC resolvers.
 150         * config/x86/host-config.h (libat_feat1_ecx, libat_feat1_edx):
 151         Remove declarations.
 152         (__libat_feat1, __libat_feat1_init): Declare.
 153         (FEAT1_REGISTER): Define.
 154         (load_feat1): New function.
 155         (IFUNC_COND_1): Adjust.
 156         * config/x86/init.c (libat_feat1_ecx, libat_feat1_edx)
 157         (init_cpuid): Remove definitions.
 158         (__libat_feat1): New variable.
 159         (__libat_feat1_init): New function.
 160
 161 2018-05-02  Tom de Vries  <tom@codesourcery.com>
 162
 163         PR testsuite/85106
 164         * testsuite/lib/libatomic.exp: Include scanltranstree.exp.
 165
 166 2018-05-02  Tom de Vries  <tom@codesourcery.com>
 167
 168         PR testsuite/85106
 169         * testsuite/lib/libatomic.exp: Include scanwpaipa.exp.
 170
 171 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 172
 173         * configure: Regenerated.
 174
 175 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 176
 177         * configure: Regenerated.
 178
 179 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
 180
 181         PR jit/85384
 182         * configure: Regenerate.
 183
 184 2018-03-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 185
 186         * config/s390/exch_n.c: New file.
 187         * configure.tgt: Add the config directory for s390.
 188
 189 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
 190
 191         PR target/84148
 192         * configure: Regenerate.
 193
 194 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
 195
 196         Update copyright years.
 197
 198 2017-12-14  Steve Ellcey  <sellcey@cavium.com>
 199
 200         * Makefile.am (IFUNC_OPTIONS): Change aarch64
 201         option from -march=armv8.1-a to -march=armv8-a+lse.
 202         * configure.ac (*aarch64*): Check to see if
 203         compiler understands -march=armv8-a+lse option.
 204         * configure.tgt (*aarch64*): Only set try_ifunc
 205         if compiler understands -march=armv8-a+lse option.
 206         * Makefile.in: Regenerate.
 207         * testsuite/Makefile.in: Regenerate.
 208         * configure: Regenerate.
 209         * aclocal.m4: Regenerate.
 210
 211 2017-12-04  Steve Ellcey  <sellcey@cavium.com>
 212
 213         * Makefile.am (ARCH_AARCH64_LINUX): Add IFUNC_OPTIONS and
 214         libatomic_la_LIBADD.
 215         * config/linux/aarch64/host-config.h: New file.
 216         * configure.ac (IFUNC_RESOLVER_ARGS): Define.
 217         (ARCH_AARCH64_LINUX): New conditional for IFUNC builds.
 218         * configure.tgt (aarch64): Set ARCH and try_ifunc.
 219         (aarch64*-*-linux*) Update config_path.
 220         (aarch64*-*-linux*) Set IFUNC_RESOLVER_ARGS.
 221         * libatomic_i.h (GEN_SELECTOR): Add IFUNC_RESOLVER_ARGS argument.
 222         * Makefile.in: Regenerate.
 223         * auto-config.h.in: Regenerate.
 224         * configure: Regenerate.
 225
 226 2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
 227
 228         * configure.ac: Set CET_FLAGS, update XCFLAGS.
 229         * acinclude.m4: Add cet.m4 and enable.m4.
 230         * configure: Regenerate.
 231         * Makefile.in: Likewise.
 232         * testsuite/Makefile.in: Likewise.
 233
 234 2017-10-20  Richard Earnshaw  <rearnsha@arm.com>
 235
 236         * Makefile.am: (IFUNC_OPTIONS): Set the architecture to
 237         -march=armv7-a+fp on Linux/Arm.
 238         * Makefile.in: Regenerated.
 239
 240 2017-10-02  Martin Sebor  <msebor@redhat.com>
 241
 242         PR c/81854
 243         * acinclude.m4 (LIBAT_CHECK_IFUNC): Have ifunc resolver return
 244         a function pointer rather than void* to avoid GCC 8 warnings.
 245         * configure: Regenerate.
 246         * libatomic_i.h: Declare ifunc resolvers to return function
 247         pointers rather than void*.
 248
 249 2017-05-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 250
 251         * testsuite/lib/libatomic.exp: Load scanlang.exp.
 252
 253 2017-02-06  Palmer Dabbelt <palmer@dabbelt.com>
 254
 255         * configure.tgt: Add RISC-V tuple.
 256
 257 2017-02-01  Richard Henderson  <rth@redhat.com>
 258             Torvald Riegel  <triegel@redhat.com>
 259
 260         * acinclude.m4: Add #define FAST_ATOMIC_LDST_*.
 261         * auto-config.h.in: Regenerate.
 262         * config/x86/host-config.h (FAST_ATOMIC_LDST_16): Define to 0.
 263         (atomic_compare_exchange_n): New.
 264         * glfree.c (EXACT, LARGER): Change condition and add comments.
 265
 266 2017-01-30  Szabolcs Nagy  <szabolcs.nagy@arm.com>
 267
 268         PR target/78945
 269         * config/arm/exch_n.c (libat_exchange): Check __ARM_FEATURE_SIMD32.
 270
 271 2017-01-21  Jakub Jelinek  <jakub@redhat.com>
 272
 273         PR other/79046
 274         * testsuite/Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead
 275         of cat to get version from BASE-VER file.
 276         * testsuite/Makefile.in: Regenerated.
 277
 278 2017-01-17  Jakub Jelinek  <jakub@redhat.com>
 279
 280         PR other/79046
 281         * configure.ac: Add GCC_BASE_VER.
 282         * Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
 283         get version from BASE-VER file.
 284         * testsuite/Makefile.in: Regenerated.
 285         * configure: Regenerated.
 286         * Makefile.in: Regenerated.
 287
 288 2017-01-01  Jakub Jelinek  <jakub@redhat.com>
 289
 290         Update copyright years.
 291
 292 2016-11-15  Matthias Klose  <doko@ubuntu.com>
 293
 294         * configure: Regenerate.
 295
 296 2016-04-27  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 297
 298         * configure.tgt (configure_tgt_pre_target_cpu_XCFLAGS): New variable.
 299         (*-*-rtems*): New supported target.
 300         * config/rtems/host-config.h: New file.
 301         * config/rtems/lock.c: Likewise.
 302
 303 2016-04-25  H.J. Lu  <hongjiu.lu@intel.com>
 304
 305         PR target/70454
 306         * configure.tgt (XCFLAGS): Revert the last change.
 307
 308 2016-04-20  H.J. Lu  <hongjiu.lu@intel.com>
 309
 310         PR target/70454
 311         * configure.tgt (XCFLAGS): Don't add -march=i486 to compile
 312         32-bit x86 target library on x86-64.
 313
 314 2016-01-06  Szabolcs Nagy  <szabolcs.nagy@arm.com>
 315
 316         PR other/67627
 317         * Makefile.am (all-multi): Add dependency.
 318         * Makefile.in: Regenerate.
 319
 320 2016-01-04  Jakub Jelinek  <jakub@redhat.com>
 321
 322         Update copyright years.
 323
 324 2015-11-18  Joseph Myers  <joseph@codesourcery.com>
 325
 326         PR c/65083
 327         * fence.c, flag.c: New files.
 328         * Makefile.am (libatomic_la_SOURCES): Add fence.c and flag.c.
 329         * Makefile.in: Regenerate.
 330         * configure.ac (libtool_VERSION): Change to 3:0:2.
 331         * configure: Regenerate.
 332         * libatomic.map (LIBATOMIC_1.2): New symbol version.
 333
 334 2015-10-09  David Malcolm  <dmalcolm@redhat.com>
 335
 336         * testsuite/lib/libatomic.exp: Load multiline.exp before
 337         prune.exp, using load_gcc_lib.
 338
 339 2015-07-14  John Marino  <gnugcc@marino.st>
 340
 341         * configure.tgt: Add *-*-dragonfly to supported targets.
 342
 343 2015-01-21  Andrew Waterman <waterman@cs.berkeley.edu>
 344
 345         * fop_n.c (libat_fetch_op): Align address to word boundary.
 346         (libat_op_fetch): Likewise.
 347
 348 2015-01-16  Ilya Verbin  <ilya.verbin@intel.com>
 349
 350         PR testsuite/64605
 351         * testsuite/lib/libatomic.exp: Do not load gcc-dg.exp.
 352         * testsuite/libatomic.c/c.exp: Load gcc-dg.exp.
 353
 354 2015-01-09  Andreas Tobler  <andreast@gcc.gnu.org>
 355
 356         * configure.tgt: Exclude arm*-*-freebsd* from try_ifunc.
 357
 358 2015-01-05  Jakub Jelinek  <jakub@redhat.com>
 359
 360         Update copyright years.
 361
 362 2014-12-12  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 363
 364         * testsuite/lib/libatomic.exp: Load target-utils.exp
 365
 366 2014-11-21  H.J. Lu  <hongjiu.lu@intel.com>
 367
 368         PR bootstrap/63784
 369         * configure: Regenerated.
 370
 371 2014-11-13  Andrew Waterman <waterman@cs.berkeley.edu>
 372
 373         * cas_n.c (libat_compare_exchange): Add missing cast.
 374
 375 2014-11-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 376
 377         PR target/63610
 378         * configure: Regenerate.
 379
 380 2014-08-19  Yaakov Selkowitz  <yselkowi@redhat.com>
 381
 382         * configure.tgt: Add cygwin to supported targets.
 383
 384 2014-07-18  Uros Bizjak  <ubizjak@gmail.com>
 385
 386         * configure.tgt (alpha*): Add -mfp-trap-mode=sui to XCFLAGS.
 387
 388 2014-06-17  Kai Tietz  <ktietz@redhat.com>
 389
 390         * Makefile.am (libatomic_la_LDFLAGS): Add lt_host_flags.
 391         * configure.ac (ACX_LT_HOST_FLAGS): New.
 392         (target_thread_file): New.
 393         * configure.tgt (mingw): Add mingw support.
 394         * config/mingw/host-config.h: New file.
 395         * config/mingw/lock.c: Likewise.
 396         * Makefile.in: Regenerated.
 397         * configure: Likewise.
 398         * aclocal.m4: Likewise.
 399         * testsuite/Makefile.in: Likewise.
 400
 401 2014-02-20  Richard Henderson <rth@redhat.com>
 402
 403         PR c++/60272
 404         * cas_n.c (libat_compare_exchange): Conditionalize on failure
 405         the store back to EPTR.
 406
 407 2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 408
 409         Update copyright years
 410
 411 2013-12-09  Uros Bizjak  <ubizjak@gmail.com>
 412
 413         * config/x86/fenv.c (__atomic_feraiseexcept): Emit SSE
 414         instructions when __SSE_MATH__ is defined.
 415
 416 2013-11-18  Joseph Myers  <joseph@codesourcery.com>
 417
 418         * testsuite/libatomic.c/atomic-compare-exchange-1.c,
 419         testsuite/libatomic.c/atomic-compare-exchange-2.c,
 420         testsuite/libatomic.c/atomic-compare-exchange-3.c,
 421         testsuite/libatomic.c/atomic-compare-exchange-4.c,
 422         testsuite/libatomic.c/atomic-compare-exchange-5.c,
 423         testsuite/libatomic.c/atomic-exchange-1.c,
 424         testsuite/libatomic.c/atomic-exchange-2.c,
 425         testsuite/libatomic.c/atomic-exchange-3.c,
 426         testsuite/libatomic.c/atomic-exchange-4.c,
 427         testsuite/libatomic.c/atomic-exchange-5.c,
 428         testsuite/libatomic.c/atomic-generic.c,
 429         testsuite/libatomic.c/atomic-load-1.c,
 430         testsuite/libatomic.c/atomic-load-2.c,
 431         testsuite/libatomic.c/atomic-load-3.c,
 432         testsuite/libatomic.c/atomic-load-4.c,
 433         testsuite/libatomic.c/atomic-load-5.c,
 434         testsuite/libatomic.c/atomic-op-1.c,
 435         testsuite/libatomic.c/atomic-op-2.c,
 436         testsuite/libatomic.c/atomic-op-3.c,
 437         testsuite/libatomic.c/atomic-op-4.c,
 438         testsuite/libatomic.c/atomic-op-5.c,
 439         testsuite/libatomic.c/atomic-store-1.c,
 440         testsuite/libatomic.c/atomic-store-2.c,
 441         testsuite/libatomic.c/atomic-store-3.c,
 442         testsuite/libatomic.c/atomic-store-4.c,
 443         testsuite/libatomic.c/atomic-store-5.c: Declare main as returning
 444         int.  Do not require built-in sync support or add target-specific
 445         options.
 446         * testsuite/libatomic.c/atomic-exchange-1.c,
 447         testsuite/libatomic.c/atomic-exchange-2.c,
 448         testsuite/libatomic.c/atomic-exchange-3.c,
 449         testsuite/libatomic.c/atomic-exchange-4.c,
 450         testsuite/libatomic.c/atomic-exchange-5.c: Separate increments of
 451         count from expression using value of count.
 452
 453 2013-11-10  Uros Bizjak  <ubizjak@gmail.com>
 454
 455         * config/x86/fenv.c: New file.
 456
 457 2013-11-07  Joseph Myers  <joseph@codesourcery.com>
 458
 459         * fenv.c: New file.
 460         * libatomic.map (LIBATOMIC_1.1): New symbol version.  Include
 461         __atomic_feraiseexcept.
 462         * configure.ac (libtool_VERSION): Change to 2:0:1.
 463         (fenv.h): Test for header.
 464         * Makefile.am (libatomic_la_SOURCES): Add fenv.c.
 465         * Makefile.in, auto-config.h.in, configure: Regenerate.
 466
 467 2013-10-17  Michael Hudson-Doyle  <michael.hudson@linaro.org>
 468
 469         * libatomic/configure.tgt (aarch64*): Remove code preventing
 470         build.
 471
 472 2013-09-20  Alan Modra  <amodra@gmail.com>
 473
 474         * configure: Regenerate.
 475
 476 2013-01-14  Richard Sandiford  <rdsandiford@googlemail.com>
 477
 478         Update copyright years.
 479
 480 2012-12-18  Ian Lance Taylor  <iant@google.com>
 481
 482         PR go/55201
 483         * Makefile.am (noinst_LTLIBRARIES): Define new make variable.
 484         (libatomic_convenience_la_SOURCES): Likewise.
 485         (libatomic_convenience_la_LIBADD): Likewise.
 486         * Makefile.in: Rebuild.
 487         * testsuite/Makefile.in: Rebuild.
 488
 489 2012-12-04  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 490
 491         * config/arm/arm-config.h (__ARM_ARCH_8A__): New.
 492
 493 2012-11-21  Matthias Klose  <doko@ubuntu.com>
 494
 495         * configure.tgt (i[3456]86): Handle -mx32 like -m64.
 496
 497 2012-11-04  Thomas Schwinge  <thomas@codesourcery.com>
 498
 499         * acinclude.m4 (LIBAT_CHECK_IFUNC): Clarify message.
 500         * configure: Regenerate.
 501
 502         * configure: Regenerate.
 503
 504 2012-10-23  Sofiane Naci <sofiane.naci@arm.com>
 505
 506         Mark libatomic unsupported in AArch64.
 507
 508         * configure.tgt: Mark libatomic unsupported.
 509
 510 2012-09-20  Jakub Jelinek  <jakub@redhat.com>
 511
 512         PR other/43620
 513         * configure.ac (AM_INIT_AUTOMAKE): Add no-dist.
 514         * configure: Regenerate.
 515         * Makefile.in: Regenerate.
 516
 517 2012-09-14  David Edelsohn  <dje.gcc@gmail.com>
 518
 519         * configure: Regenerated.
 520
 521 2012-05-22  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 522
 523         PR other/53231
 524         * tas_n.c (libat_test_and_set): Correct return.  Remove unused variable.
 525
 526 2012-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 527
 528         * configure: Regenerated.
 529
 530 2012-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 531
 532         PR other/53284
 533         * acinclude.m4 (LIBAT_TEST_ATOMIC_BUILTIN): Add -O0 -S to CFLAGS
 534         instead of overriding.
 535         * configure: Regenerate.
 536
 537 2012-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 538
 539         * Makefile.am (libatomic.map-sun): Handle objects in
 540         libatomic_la_LIBADD.
 541         * aclocal.m4: Regenerate.
 542         * Makefile.in: Regenerate.
 543
 544 2012-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 545
 546         * configure.ac: Add $XPCFLAGS to CFLAGS, not $XCFLAGS.
 547         * configure: Regenerate.
 548
 549 2012-05-03  Richard Henderson  <rth@redhat.com>
 550
 551         * configure.ac (AM_MAINTAINER_MODE): New.
 552         * acinclude.m4 (LIBAT_TEST_ATOMIC_BUILTIN): Handle compilation
 553         failure in gcc_no_link path.
 554         * configure, aclocal.m4, Makefile.in: Rebuild.
 555
 556 2012-05-01  Richard Henderson  <rth@redhat.com>
 557
 558         * Initial commit.
 559 \f
 560 Copyright (C) 2012-2020 Free Software Foundation, Inc.
 561
 562 Copying and distribution of this file, with or without modification,
 563 are permitted in any medium without royalty provided the copyright
 564 notice and this notice are preserved.