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author | Fangrui Song <maskray@google.com> | 2019-08-02 07:18:07 +0000 |
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committer | Fangrui Song <maskray@google.com> | 2019-08-02 07:18:07 +0000 |
commit | 681afdf34bb16d1877e984d157dfd389a79a4256 (patch) | |
tree | 4e3f851ec5cfff68846a11843577ed58d4fdd430 /test/tsan/java_volatile.cpp | |
parent | 871e3822d6679af8f7cfa763b65258e47f2d8d69 (diff) | |
download | compiler-rt-681afdf34bb16d1877e984d157dfd389a79a4256.tar.gz |
compiler-rt: Rename .cc file in test/tsan to .cpp
Like r367463, but for test/tsan.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@367656 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/tsan/java_volatile.cpp')
-rw-r--r-- | test/tsan/java_volatile.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/test/tsan/java_volatile.cpp b/test/tsan/java_volatile.cpp new file mode 100644 index 000000000..885b4f241 --- /dev/null +++ b/test/tsan/java_volatile.cpp @@ -0,0 +1,42 @@ +// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s +#include "java.h" + +jptr varaddr; +jptr lockaddr; + +void *Thread(void *p) { + while (__atomic_load_n((int*)lockaddr, __ATOMIC_RELAXED) == 0) + usleep(1000); // spin-wait + __tsan_java_acquire(lockaddr); + *(int*)varaddr = 42; + return 0; +} + +int main() { + barrier_init(&barrier, 2); + int const kHeapSize = 1024 * 1024; + jptr jheap = (jptr)malloc(kHeapSize + 8) + 8; + __tsan_java_init(jheap, kHeapSize); + const int kBlockSize = 16; + __tsan_java_alloc(jheap, kBlockSize); + varaddr = jheap; + lockaddr = jheap + 8; + pthread_t th; + pthread_create(&th, 0, Thread, 0); + *(int*)varaddr = 43; + __tsan_java_release(lockaddr); + __atomic_store_n((int*)lockaddr, 1, __ATOMIC_RELAXED); + pthread_join(th, 0); + *(int*)lockaddr = 0; + pthread_create(&th, 0, Thread, 0); + *(int*)varaddr = 43; + __tsan_java_release_store(lockaddr); + __atomic_store_n((int*)lockaddr, 1, __ATOMIC_RELAXED); + pthread_join(th, 0); + __tsan_java_free(jheap, kBlockSize); + fprintf(stderr, "DONE\n"); + return __tsan_java_fini(); +} + +// CHECK-NOT: WARNING: ThreadSanitizer: data race +// CHECK: DONE |