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author | Kuba Brecka <kuba.brecka@gmail.com> | 2015-12-01 13:11:42 +0000 |
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committer | Kuba Brecka <kuba.brecka@gmail.com> | 2015-12-01 13:11:42 +0000 |
commit | 771833b0b7b419145784f3b40c3e775ef8d5490f (patch) | |
tree | d341c654712e56787bac3d1ceeb6ccee31fd1aeb /test | |
parent | 627fd48e2b24f1356347de58c922cce6fe7ed3e1 (diff) |
[tsan] Add interceptors and sychronization for libdispatch semaphores on OS X
This patch adds release and acquire semantics for libdispatch semaphores and a test case.
Differential Revision: http://reviews.llvm.org/D14992
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@254412 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/tsan/Darwin/gcd-semaphore-norace.mm | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/tsan/Darwin/gcd-semaphore-norace.mm b/test/tsan/Darwin/gcd-semaphore-norace.mm new file mode 100644 index 000000000..cd52a79ca --- /dev/null +++ b/test/tsan/Darwin/gcd-semaphore-norace.mm @@ -0,0 +1,29 @@ +// RUN: %clang_tsan %s -o %t -framework Foundation +// RUN: %run %t 2>&1 + +#import <Foundation/Foundation.h> + +long global; + +int main() { + NSLog(@"Hello world."); + + global = 42; + + dispatch_semaphore_t sem = dispatch_semaphore_create(0); + dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ + + global = 43; + dispatch_semaphore_signal(sem); + }); + + dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER); + global = 44; + + NSLog(@"Done."); + return 0; +} + +// CHECK: Hello world. +// CHECK: Done. +// CHECK-NOT: WARNING: ThreadSanitizer |