/* Tests for atomic.h macros. Copyright (C) 2003-2015 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <stdio.h> #include <atomic.h> #ifndef atomic_t # define atomic_t int #endif #define CHK2(f,a1,a2,rv,new_mem) \ retval = f(&mem, a1, a2); \ if (retval != rv) { \ printf("%s(mem, %lu, %lu): retval %lu != expected %lu\n", \ #f, a1, a2, retval, rv); \ ret = 1; \ } \ if (mem != new_mem) { \ printf("%s(mem, %lu, %lu): mem %lu != expected %lu\n", \ #f, a1, a2, mem, new_mem); \ ret = 1; \ } #define CHK1(f,a1,rv,new_mem) \ retval = f(&mem, a1); \ if (retval != rv) { \ printf("%s(mem, %lu): retval %lu != expected %lu\n", \ #f, a1, retval, rv); \ ret = 1; \ } \ if (mem != new_mem) { \ printf("%s(mem, %lu): mem %lu != expected %lu\n", \ #f, a1, mem, new_mem); \ ret = 1; \ } #define CHK0(f,rv,new_mem) \ retval = f(&mem); \ if (retval != rv) { \ printf("%s(mem): retval %lu != expected %lu\n", \ #f, retval, rv); \ ret = 1; \ } \ if (mem != new_mem) { \ printf("%s(mem): mem %lu != expected %lu\n", \ #f, mem, new_mem); \ ret = 1; \ } /* Test various atomic.h macros. */ static int do_test (void) { atomic_t mem, expected, retval; int ret = 0; #ifdef atomic_compare_and_exchange_val_acq mem = 24; CHK2(atomic_compare_and_exchange_val_acq, 35, 24, 24, 35); mem = 12; CHK2(atomic_compare_and_exchange_val_acq, 10, 15, 12, 12); mem = -15; CHK2(atomic_compare_and_exchange_val_acq, -56, -15, -15, -56); mem = -1; CHK2(atomic_compare_and_exchange_val_acq, 17, 0, -1, -1); #endif mem = 24; CHK2(atomic_compare_and_exchange_bool_acq, 35, 24, 0, 35); mem = 12; CHK2(atomic_compare_and_exchange_bool_acq, 10, 15, 1, 12); mem = -15; CHK2(atomic_compare_and_exchange_bool_acq, -56, -15, 0, -56); mem = -1; CHK2(atomic_compare_and_exchange_bool_acq, 17, 0, 1, -1); mem = 64; CHK1(atomic_exchange_acq, 31, 64, 31); mem = 2; CHK1(atomic_exchange_and_add, 11, 2, 13); mem = 2; CHK1(atomic_exchange_and_add_acq, 11, 2, 13); mem = 2; CHK1(atomic_exchange_and_add_rel, 11, 2, 13); mem = -21; atomic_add (&mem, 22); if (mem != 1) { printf ("atomic_add(mem, 22): mem %lu != expected 1\n", mem); ret = 1; } mem = -1; atomic_increment (&mem); if (mem != 0) { printf ("atomic_increment(mem): mem %lu != expected 0\n", mem); ret = 1; } mem = 2; if ((retval = atomic_increment_val (&mem)) != 3) { printf ("atomic_increment_val(mem): retval %lu != expected 3\n", retval); ret = 1; } mem = 0; CHK0(atomic_increment_and_test, 0, 1); mem = 35; CHK0(atomic_increment_and_test, 0, 36); mem = -1; CHK0(atomic_increment_and_test, 1, 0); mem = 17; atomic_decrement (&mem); if (mem != 16) { printf ("atomic_increment(mem): mem %lu != expected 16\n", mem); ret = 1; } if ((retval = atomic_decrement_val (&mem)) != 15) { printf ("atomic_decrement_val(mem): retval %lu != expected 15\n", retval); ret = 1; } mem = 0; CHK0(atomic_decrement_and_test, 0, -1); mem = 15; CHK0(atomic_decrement_and_test, 0, 14); mem = 1; CHK0(atomic_decrement_and_test, 1, 0); mem = 1; if (atomic_decrement_if_positive (&mem) != 1 || mem != 0) { puts ("atomic_decrement_if_positive test 1 failed"); ret = 1; } mem = 0; if (atomic_decrement_if_positive (&mem) != 0 || mem != 0) { puts ("atomic_decrement_if_positive test 2 failed"); ret = 1; } mem = -1; if (atomic_decrement_if_positive (&mem) != -1 || mem != -1) { puts ("atomic_decrement_if_positive test 3 failed"); ret = 1; } mem = -12; if (! atomic_add_negative (&mem, 10) || mem != -2) { puts ("atomic_add_negative test 1 failed"); ret = 1; } mem = 0; if (atomic_add_negative (&mem, 100) || mem != 100) { puts ("atomic_add_negative test 2 failed"); ret = 1; } mem = 15; if (atomic_add_negative (&mem, -10) || mem != 5) { puts ("atomic_add_negative test 3 failed"); ret = 1; } mem = -12; if (atomic_add_negative (&mem, 14) || mem != 2) { puts ("atomic_add_negative test 4 failed"); ret = 1; } mem = 0; if (! atomic_add_negative (&mem, -1) || mem != -1) { puts ("atomic_add_negative test 5 failed"); ret = 1; } mem = -31; if (atomic_add_negative (&mem, 31) || mem != 0) { puts ("atomic_add_negative test 6 failed"); ret = 1; } mem = -34; if (atomic_add_zero (&mem, 31) || mem != -3) { puts ("atomic_add_zero test 1 failed"); ret = 1; } mem = -36; if (! atomic_add_zero (&mem, 36) || mem != 0) { puts ("atomic_add_zero test 2 failed"); ret = 1; } mem = 113; if (atomic_add_zero (&mem, -13) || mem != 100) { puts ("atomic_add_zero test 3 failed"); ret = 1; } mem = -18; if (atomic_add_zero (&mem, 20) || mem != 2) { puts ("atomic_add_zero test 4 failed"); ret = 1; } mem = 10; if (atomic_add_zero (&mem, -20) || mem != -10) { puts ("atomic_add_zero test 5 failed"); ret = 1; } mem = 10; if (! atomic_add_zero (&mem, -10) || mem != 0) { puts ("atomic_add_zero test 6 failed"); ret = 1; } mem = 0; atomic_bit_set (&mem, 1); if (mem != 2) { puts ("atomic_bit_set test 1 failed"); ret = 1; } mem = 8; atomic_bit_set (&mem, 3); if (mem != 8) { puts ("atomic_bit_set test 2 failed"); ret = 1; } #ifdef TEST_ATOMIC64 mem = 16; atomic_bit_set (&mem, 35); if (mem != 0x800000010LL) { puts ("atomic_bit_set test 3 failed"); ret = 1; } #endif mem = 0; if (atomic_bit_test_set (&mem, 1) || mem != 2) { puts ("atomic_bit_test_set test 1 failed"); ret = 1; } mem = 8; if (! atomic_bit_test_set (&mem, 3) || mem != 8) { puts ("atomic_bit_test_set test 2 failed"); ret = 1; } #ifdef TEST_ATOMIC64 mem = 16; if (atomic_bit_test_set (&mem, 35) || mem != 0x800000010LL) { puts ("atomic_bit_test_set test 3 failed"); ret = 1; } mem = 0x100000000LL; if (! atomic_bit_test_set (&mem, 32) || mem != 0x100000000LL) { puts ("atomic_bit_test_set test 4 failed"); ret = 1; } #endif #ifdef catomic_compare_and_exchange_val_acq mem = 24; if (catomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24 || mem != 35) { puts ("catomic_compare_and_exchange_val_acq test 1 failed"); ret = 1; } mem = 12; if (catomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12 || mem != 12) { puts ("catomic_compare_and_exchange_val_acq test 2 failed"); ret = 1; } mem = -15; if (catomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15 || mem != -56) { puts ("catomic_compare_and_exchange_val_acq test 3 failed"); ret = 1; } mem = -1; if (catomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1 || mem != -1) { puts ("catomic_compare_and_exchange_val_acq test 4 failed"); ret = 1; } #endif mem = 24; if (catomic_compare_and_exchange_bool_acq (&mem, 35, 24) || mem != 35) { puts ("catomic_compare_and_exchange_bool_acq test 1 failed"); ret = 1; } mem = 12; if (! catomic_compare_and_exchange_bool_acq (&mem, 10, 15) || mem != 12) { puts ("catomic_compare_and_exchange_bool_acq test 2 failed"); ret = 1; } mem = -15; if (catomic_compare_and_exchange_bool_acq (&mem, -56, -15) || mem != -56) { puts ("catomic_compare_and_exchange_bool_acq test 3 failed"); ret = 1; } mem = -1; if (! catomic_compare_and_exchange_bool_acq (&mem, 17, 0) || mem != -1) { puts ("catomic_compare_and_exchange_bool_acq test 4 failed"); ret = 1; } mem = 2; if (catomic_exchange_and_add (&mem, 11) != 2 || mem != 13) { puts ("catomic_exchange_and_add test failed"); ret = 1; } mem = -21; catomic_add (&mem, 22); if (mem != 1) { puts ("catomic_add test failed"); ret = 1; } mem = -1; catomic_increment (&mem); if (mem != 0) { puts ("catomic_increment test failed"); ret = 1; } mem = 2; if (catomic_increment_val (&mem) != 3) { puts ("catomic_increment_val test failed"); ret = 1; } mem = 17; catomic_decrement (&mem); if (mem != 16) { puts ("catomic_decrement test failed"); ret = 1; } if (catomic_decrement_val (&mem) != 15) { puts ("catomic_decrement_val test failed"); ret = 1; } /* Tests for C11-like atomics. */ mem = 11; if (atomic_load_relaxed (&mem) != 11 || atomic_load_acquire (&mem) != 11) { puts ("atomic_load_{relaxed,acquire} test failed"); ret = 1; } atomic_store_relaxed (&mem, 12); if (mem != 12) { puts ("atomic_store_relaxed test failed"); ret = 1; } atomic_store_release (&mem, 13); if (mem != 13) { puts ("atomic_store_release test failed"); ret = 1; } mem = 14; expected = 14; if (!atomic_compare_exchange_weak_relaxed (&mem, &expected, 25) || mem != 25 || expected != 14) { puts ("atomic_compare_exchange_weak_relaxed test 1 failed"); ret = 1; } if (atomic_compare_exchange_weak_relaxed (&mem, &expected, 14) || mem != 25 || expected != 25) { puts ("atomic_compare_exchange_weak_relaxed test 2 failed"); ret = 1; } mem = 14; expected = 14; if (!atomic_compare_exchange_weak_acquire (&mem, &expected, 25) || mem != 25 || expected != 14) { puts ("atomic_compare_exchange_weak_acquire test 1 failed"); ret = 1; } if (atomic_compare_exchange_weak_acquire (&mem, &expected, 14) || mem != 25 || expected != 25) { puts ("atomic_compare_exchange_weak_acquire test 2 failed"); ret = 1; } mem = 14; expected = 14; if (!atomic_compare_exchange_weak_release (&mem, &expected, 25) || mem != 25 || expected != 14) { puts ("atomic_compare_exchange_weak_release test 1 failed"); ret = 1; } if (atomic_compare_exchange_weak_release (&mem, &expected, 14) || mem != 25 || expected != 25) { 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; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"