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We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
639 lines
13 KiB
C
639 lines
13 KiB
C
/* Tests for atomic.h macros.
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Copyright (C) 2003-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <atomic.h>
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#ifndef atomic_t
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# define atomic_t int
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#endif
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/* Test various atomic.h macros. */
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static int
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do_test (void)
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{
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atomic_t mem, expected;
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int ret = 0;
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#ifdef atomic_compare_and_exchange_val_acq
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mem = 24;
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if (atomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
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|| mem != 35)
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{
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puts ("atomic_compare_and_exchange_val_acq test 1 failed");
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ret = 1;
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}
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mem = 12;
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if (atomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
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|| mem != 12)
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{
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puts ("atomic_compare_and_exchange_val_acq test 2 failed");
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ret = 1;
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}
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mem = -15;
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if (atomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
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|| mem != -56)
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{
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puts ("atomic_compare_and_exchange_val_acq test 3 failed");
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ret = 1;
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}
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mem = -1;
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if (atomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
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|| mem != -1)
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{
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puts ("atomic_compare_and_exchange_val_acq test 4 failed");
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ret = 1;
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}
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#endif
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mem = 24;
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if (atomic_compare_and_exchange_bool_acq (&mem, 35, 24)
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|| mem != 35)
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{
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puts ("atomic_compare_and_exchange_bool_acq test 1 failed");
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ret = 1;
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}
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mem = 12;
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if (! atomic_compare_and_exchange_bool_acq (&mem, 10, 15)
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|| mem != 12)
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{
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puts ("atomic_compare_and_exchange_bool_acq test 2 failed");
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ret = 1;
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}
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mem = -15;
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if (atomic_compare_and_exchange_bool_acq (&mem, -56, -15)
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|| mem != -56)
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{
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puts ("atomic_compare_and_exchange_bool_acq test 3 failed");
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ret = 1;
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}
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mem = -1;
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if (! atomic_compare_and_exchange_bool_acq (&mem, 17, 0)
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|| mem != -1)
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{
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puts ("atomic_compare_and_exchange_bool_acq test 4 failed");
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ret = 1;
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}
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mem = 64;
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if (atomic_exchange_acq (&mem, 31) != 64
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|| mem != 31)
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{
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puts ("atomic_exchange_acq test failed");
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ret = 1;
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}
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mem = 2;
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if (atomic_exchange_and_add (&mem, 11) != 2
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|| mem != 13)
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{
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puts ("atomic_exchange_and_add test failed");
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ret = 1;
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}
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mem = 2;
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if (atomic_exchange_and_add_acq (&mem, 11) != 2
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|| mem != 13)
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{
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puts ("atomic_exchange_and_add test failed");
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ret = 1;
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}
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mem = 2;
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if (atomic_exchange_and_add_rel (&mem, 11) != 2
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|| mem != 13)
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{
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puts ("atomic_exchange_and_add test failed");
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ret = 1;
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}
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mem = -21;
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atomic_add (&mem, 22);
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if (mem != 1)
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{
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puts ("atomic_add test failed");
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ret = 1;
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}
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mem = -1;
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atomic_increment (&mem);
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if (mem != 0)
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{
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puts ("atomic_increment test failed");
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ret = 1;
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}
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mem = 2;
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if (atomic_increment_val (&mem) != 3)
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{
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puts ("atomic_increment_val test failed");
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ret = 1;
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}
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mem = 0;
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if (atomic_increment_and_test (&mem)
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|| mem != 1)
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{
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puts ("atomic_increment_and_test test 1 failed");
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ret = 1;
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}
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mem = 35;
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if (atomic_increment_and_test (&mem)
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|| mem != 36)
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{
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puts ("atomic_increment_and_test test 2 failed");
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ret = 1;
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}
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mem = -1;
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if (! atomic_increment_and_test (&mem)
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|| mem != 0)
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{
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puts ("atomic_increment_and_test test 3 failed");
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ret = 1;
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}
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mem = 17;
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atomic_decrement (&mem);
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if (mem != 16)
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{
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puts ("atomic_decrement test failed");
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ret = 1;
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}
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if (atomic_decrement_val (&mem) != 15)
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{
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puts ("atomic_decrement_val test failed");
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ret = 1;
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}
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mem = 0;
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if (atomic_decrement_and_test (&mem)
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|| mem != -1)
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{
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puts ("atomic_decrement_and_test test 1 failed");
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ret = 1;
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}
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mem = 15;
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if (atomic_decrement_and_test (&mem)
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|| mem != 14)
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{
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puts ("atomic_decrement_and_test test 2 failed");
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ret = 1;
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}
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mem = 1;
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if (! atomic_decrement_and_test (&mem)
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|| mem != 0)
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{
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puts ("atomic_decrement_and_test test 3 failed");
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ret = 1;
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}
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mem = 1;
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if (atomic_decrement_if_positive (&mem) != 1
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|| mem != 0)
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{
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puts ("atomic_decrement_if_positive test 1 failed");
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ret = 1;
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}
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mem = 0;
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if (atomic_decrement_if_positive (&mem) != 0
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|| mem != 0)
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{
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puts ("atomic_decrement_if_positive test 2 failed");
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ret = 1;
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}
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mem = -1;
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if (atomic_decrement_if_positive (&mem) != -1
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|| mem != -1)
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{
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puts ("atomic_decrement_if_positive test 3 failed");
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ret = 1;
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}
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mem = -12;
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if (! atomic_add_negative (&mem, 10)
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|| mem != -2)
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{
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puts ("atomic_add_negative test 1 failed");
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ret = 1;
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}
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mem = 0;
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if (atomic_add_negative (&mem, 100)
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|| mem != 100)
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{
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puts ("atomic_add_negative test 2 failed");
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ret = 1;
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}
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mem = 15;
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if (atomic_add_negative (&mem, -10)
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|| mem != 5)
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{
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puts ("atomic_add_negative test 3 failed");
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ret = 1;
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}
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mem = -12;
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if (atomic_add_negative (&mem, 14)
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|| mem != 2)
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{
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puts ("atomic_add_negative test 4 failed");
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ret = 1;
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}
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mem = 0;
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if (! atomic_add_negative (&mem, -1)
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|| mem != -1)
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{
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puts ("atomic_add_negative test 5 failed");
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ret = 1;
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}
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mem = -31;
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if (atomic_add_negative (&mem, 31)
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|| mem != 0)
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{
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puts ("atomic_add_negative test 6 failed");
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ret = 1;
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}
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mem = -34;
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if (atomic_add_zero (&mem, 31)
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|| mem != -3)
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{
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puts ("atomic_add_zero test 1 failed");
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ret = 1;
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}
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mem = -36;
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if (! atomic_add_zero (&mem, 36)
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|| mem != 0)
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{
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puts ("atomic_add_zero test 2 failed");
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ret = 1;
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}
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mem = 113;
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if (atomic_add_zero (&mem, -13)
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|| mem != 100)
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{
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puts ("atomic_add_zero test 3 failed");
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ret = 1;
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}
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mem = -18;
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if (atomic_add_zero (&mem, 20)
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|| mem != 2)
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{
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puts ("atomic_add_zero test 4 failed");
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ret = 1;
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}
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mem = 10;
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if (atomic_add_zero (&mem, -20)
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|| mem != -10)
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{
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puts ("atomic_add_zero test 5 failed");
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ret = 1;
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}
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mem = 10;
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if (! atomic_add_zero (&mem, -10)
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|| mem != 0)
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{
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puts ("atomic_add_zero test 6 failed");
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ret = 1;
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}
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mem = 0;
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atomic_bit_set (&mem, 1);
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if (mem != 2)
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{
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puts ("atomic_bit_set test 1 failed");
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ret = 1;
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}
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mem = 8;
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atomic_bit_set (&mem, 3);
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if (mem != 8)
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{
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puts ("atomic_bit_set test 2 failed");
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ret = 1;
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}
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#ifdef TEST_ATOMIC64
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mem = 16;
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atomic_bit_set (&mem, 35);
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if (mem != 0x800000010LL)
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{
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puts ("atomic_bit_set test 3 failed");
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ret = 1;
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}
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#endif
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mem = 0;
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if (atomic_bit_test_set (&mem, 1)
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|| mem != 2)
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{
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puts ("atomic_bit_test_set test 1 failed");
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ret = 1;
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}
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mem = 8;
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if (! atomic_bit_test_set (&mem, 3)
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|| mem != 8)
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{
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puts ("atomic_bit_test_set test 2 failed");
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ret = 1;
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}
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#ifdef TEST_ATOMIC64
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mem = 16;
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if (atomic_bit_test_set (&mem, 35)
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|| mem != 0x800000010LL)
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{
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puts ("atomic_bit_test_set test 3 failed");
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ret = 1;
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}
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mem = 0x100000000LL;
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if (! atomic_bit_test_set (&mem, 32)
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|| mem != 0x100000000LL)
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{
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puts ("atomic_bit_test_set test 4 failed");
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ret = 1;
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}
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#endif
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#ifdef catomic_compare_and_exchange_val_acq
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mem = 24;
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if (catomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
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|| mem != 35)
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{
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puts ("catomic_compare_and_exchange_val_acq test 1 failed");
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ret = 1;
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}
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mem = 12;
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if (catomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
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|| mem != 12)
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{
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puts ("catomic_compare_and_exchange_val_acq test 2 failed");
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ret = 1;
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}
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mem = -15;
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if (catomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
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|| mem != -56)
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{
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puts ("catomic_compare_and_exchange_val_acq test 3 failed");
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ret = 1;
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}
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mem = -1;
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if (catomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
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|| mem != -1)
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{
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puts ("catomic_compare_and_exchange_val_acq test 4 failed");
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ret = 1;
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}
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#endif
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mem = 24;
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if (catomic_compare_and_exchange_bool_acq (&mem, 35, 24)
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|| mem != 35)
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{
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puts ("catomic_compare_and_exchange_bool_acq test 1 failed");
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ret = 1;
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}
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mem = 12;
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if (! catomic_compare_and_exchange_bool_acq (&mem, 10, 15)
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|| mem != 12)
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{
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puts ("catomic_compare_and_exchange_bool_acq test 2 failed");
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ret = 1;
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}
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mem = -15;
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if (catomic_compare_and_exchange_bool_acq (&mem, -56, -15)
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|| mem != -56)
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{
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puts ("catomic_compare_and_exchange_bool_acq test 3 failed");
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ret = 1;
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}
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mem = -1;
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if (! catomic_compare_and_exchange_bool_acq (&mem, 17, 0)
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|| mem != -1)
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{
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puts ("catomic_compare_and_exchange_bool_acq test 4 failed");
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ret = 1;
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}
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mem = 2;
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if (catomic_exchange_and_add (&mem, 11) != 2
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|| mem != 13)
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{
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puts ("catomic_exchange_and_add test failed");
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ret = 1;
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}
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mem = -21;
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catomic_add (&mem, 22);
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if (mem != 1)
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{
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puts ("catomic_add test failed");
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ret = 1;
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}
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mem = -1;
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catomic_increment (&mem);
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if (mem != 0)
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{
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puts ("catomic_increment test failed");
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ret = 1;
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}
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mem = 2;
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if (catomic_increment_val (&mem) != 3)
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{
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puts ("catomic_increment_val test failed");
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ret = 1;
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}
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mem = 17;
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catomic_decrement (&mem);
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if (mem != 16)
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{
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puts ("catomic_decrement test failed");
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ret = 1;
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}
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if (catomic_decrement_val (&mem) != 15)
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{
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puts ("catomic_decrement_val test failed");
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ret = 1;
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}
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/* Tests for C11-like atomics. */
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mem = 11;
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if (atomic_load_relaxed (&mem) != 11 || atomic_load_acquire (&mem) != 11)
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{
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puts ("atomic_load_{relaxed,acquire} test failed");
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ret = 1;
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}
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atomic_store_relaxed (&mem, 12);
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if (mem != 12)
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{
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puts ("atomic_store_relaxed test failed");
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ret = 1;
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}
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atomic_store_release (&mem, 13);
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if (mem != 13)
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{
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puts ("atomic_store_release test failed");
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ret = 1;
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}
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mem = 14;
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expected = 14;
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if (!atomic_compare_exchange_weak_relaxed (&mem, &expected, 25)
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|| mem != 25 || expected != 14)
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{
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puts ("atomic_compare_exchange_weak_relaxed test 1 failed");
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ret = 1;
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}
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if (atomic_compare_exchange_weak_relaxed (&mem, &expected, 14)
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|| mem != 25 || expected != 25)
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{
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puts ("atomic_compare_exchange_weak_relaxed test 2 failed");
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ret = 1;
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}
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mem = 14;
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expected = 14;
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if (!atomic_compare_exchange_weak_acquire (&mem, &expected, 25)
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|| mem != 25 || expected != 14)
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{
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puts ("atomic_compare_exchange_weak_acquire test 1 failed");
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ret = 1;
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}
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if (atomic_compare_exchange_weak_acquire (&mem, &expected, 14)
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|| mem != 25 || expected != 25)
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{
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puts ("atomic_compare_exchange_weak_acquire test 2 failed");
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ret = 1;
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}
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mem = 14;
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expected = 14;
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if (!atomic_compare_exchange_weak_release (&mem, &expected, 25)
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|| mem != 25 || expected != 14)
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{
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puts ("atomic_compare_exchange_weak_release test 1 failed");
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ret = 1;
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}
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if (atomic_compare_exchange_weak_release (&mem, &expected, 14)
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|| mem != 25 || expected != 25)
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{
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puts ("atomic_compare_exchange_weak_release test 2 failed");
|
|
ret = 1;
|
|
}
|
|
|
|
mem = 23;
|
|
if (atomic_exchange_acquire (&mem, 42) != 23 || mem != 42)
|
|
{
|
|
puts ("atomic_exchange_acquire test failed");
|
|
ret = 1;
|
|
}
|
|
mem = 23;
|
|
if (atomic_exchange_release (&mem, 42) != 23 || mem != 42)
|
|
{
|
|
puts ("atomic_exchange_release test failed");
|
|
ret = 1;
|
|
}
|
|
|
|
mem = 23;
|
|
if (atomic_fetch_add_relaxed (&mem, 1) != 23 || mem != 24)
|
|
{
|
|
puts ("atomic_fetch_add_relaxed test failed");
|
|
ret = 1;
|
|
}
|
|
mem = 23;
|
|
if (atomic_fetch_add_acquire (&mem, 1) != 23 || mem != 24)
|
|
{
|
|
puts ("atomic_fetch_add_acquire test failed");
|
|
ret = 1;
|
|
}
|
|
mem = 23;
|
|
if (atomic_fetch_add_release (&mem, 1) != 23 || mem != 24)
|
|
{
|
|
puts ("atomic_fetch_add_release test failed");
|
|
ret = 1;
|
|
}
|
|
mem = 23;
|
|
if (atomic_fetch_add_acq_rel (&mem, 1) != 23 || mem != 24)
|
|
{
|
|
puts ("atomic_fetch_add_acq_rel test failed");
|
|
ret = 1;
|
|
}
|
|
|
|
mem = 3;
|
|
if (atomic_fetch_and_acquire (&mem, 2) != 3 || mem != 2)
|
|
{
|
|
puts ("atomic_fetch_and_acquire test failed");
|
|
ret = 1;
|
|
}
|
|
|
|
mem = 4;
|
|
if (atomic_fetch_or_relaxed (&mem, 2) != 4 || mem != 6)
|
|
{
|
|
puts ("atomic_fetch_or_relaxed test failed");
|
|
ret = 1;
|
|
}
|
|
mem = 4;
|
|
if (atomic_fetch_or_acquire (&mem, 2) != 4 || mem != 6)
|
|
{
|
|
puts ("atomic_fetch_or_acquire test failed");
|
|
ret = 1;
|
|
}
|
|
|
|
/* This is a single-threaded test, so we can't test the effects of the
|
|
fences. */
|
|
atomic_thread_fence_acquire ();
|
|
atomic_thread_fence_release ();
|
|
atomic_thread_fence_seq_cst ();
|
|
|
|
return ret;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|