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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-09-25 21:31:00 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-09-25 21:48:24 +0200 |
| commit | 1f7c5c88ca384baa312a0714c6e93174605418a7 (patch) | |
| tree | feeef5efadbbc839a35f8f8d0d393c43578d1ad6 /testsuites | |
| parent | ARMv7M: Improve exception handler routine and add comments on SP selection (diff) | |
| download | rtems-1f7c5c88ca384baa312a0714c6e93174605418a7.tar.bz2 | |
score: Fix atomic compare exchange
Diffstat (limited to 'testsuites')
| -rw-r--r-- | testsuites/sptests/spatomic01/init.c | 65 |
1 files changed, 49 insertions, 16 deletions
diff --git a/testsuites/sptests/spatomic01/init.c b/testsuites/sptests/spatomic01/init.c index fbfd071832..b90ffd05f5 100644 --- a/testsuites/sptests/spatomic01/init.c +++ b/testsuites/sptests/spatomic01/init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2013-2014 embedded brains GmbH. All rights reserved. + * Copyright (c) 2013-2015 embedded brains GmbH. All rights reserved. * * embedded brains GmbH * Dornierstr. 4 @@ -189,24 +189,57 @@ static void test_simple_atomic_exchange_body(test_context *ctx) static void test_simple_atomic_compare_exchange_body(test_context *ctx) { - unsigned int ia = 8, ib = 4; - unsigned int ic; - unsigned long a = 2, b = 1; - unsigned long c; + unsigned int ei; + unsigned int vi; + unsigned long el; + unsigned long vl; + bool success; puts("=== atomic simple compare exchange test case ==="); - _Atomic_Store_uint(&ctx->atomic_int_value, ia, ATOMIC_ORDER_RELAXED); - _Atomic_Compare_exchange_uint(&ctx->atomic_int_value, &ia, ib, - ATOMIC_ORDER_RELAXED, ATOMIC_ORDER_RELAXED); - ic = _Atomic_Load_uint(&ctx->atomic_int_value, ATOMIC_ORDER_RELAXED); - rtems_test_assert(ic == ib); - - _Atomic_Store_ulong(&ctx->atomic_value, a, ATOMIC_ORDER_RELAXED); - _Atomic_Compare_exchange_ulong(&ctx->atomic_value, &a, b, - ATOMIC_ORDER_RELAXED, ATOMIC_ORDER_RELAXED); - c = _Atomic_Load_ulong(&ctx->atomic_value, ATOMIC_ORDER_RELAXED); - rtems_test_assert(c == b); + _Atomic_Store_uint(&ctx->atomic_int_value, 1, ATOMIC_ORDER_RELAXED); + ei = 2; + success = _Atomic_Compare_exchange_uint( + &ctx->atomic_int_value, + &ei, + 3, + ATOMIC_ORDER_RELAXED, + ATOMIC_ORDER_RELAXED + ); + rtems_test_assert(!success); + rtems_test_assert(ei == 1); + success = _Atomic_Compare_exchange_uint( + &ctx->atomic_int_value, + &ei, + 3, + ATOMIC_ORDER_RELAXED, + ATOMIC_ORDER_RELAXED + ); + rtems_test_assert(success); + vi = _Atomic_Load_uint(&ctx->atomic_int_value, ATOMIC_ORDER_RELAXED); + rtems_test_assert(vi == 3); + + _Atomic_Store_ulong(&ctx->atomic_value, 10, ATOMIC_ORDER_RELAXED); + el = 11; + success = _Atomic_Compare_exchange_ulong( + &ctx->atomic_value, + &el, + 12, + ATOMIC_ORDER_RELAXED, + ATOMIC_ORDER_RELAXED + ); + rtems_test_assert(!success); + rtems_test_assert(el == 10); + success = _Atomic_Compare_exchange_ulong( + &ctx->atomic_value, + &el, + 12, + ATOMIC_ORDER_RELAXED, + ATOMIC_ORDER_RELAXED + ); + rtems_test_assert(success); + vl = _Atomic_Load_ulong(&ctx->atomic_value, ATOMIC_ORDER_RELAXED); + rtems_test_assert(vl == 12); } static const simple_test_body simple_test_bodies[] = { |