anish
33e9abfce4
The `cmake/thread_safety_attributes.cpp` check was including `../src/mutex.h`, which transitively pulls in `check.h`. That header declares `benchmark::internal::GetAbortHandler()` with `BENCHMARK_EXPORT`, which requires linking against the benchmark library. Since `try_run` in `CXXFeatureCheck.cmake` only links against `BENCHMARK_CXX_LIBRARIES` (which doesn't include the full library at check time), the check failed to link, leaving `HAVE_THREAD_SAFETY_ATTRIBUTES` undefined. Signed-off-by: anish k <ak8686@princeton.edu>
26 lines
571 B
C++
26 lines
571 B
C++
#if defined(__clang__)
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#define THREAD_ANNOTATION_ATTRIBUTE_(x) __attribute__((x))
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#else
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#define THREAD_ANNOTATION_ATTRIBUTE_(x)
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#endif
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#define CAPABILITY(x) THREAD_ANNOTATION_ATTRIBUTE_(capability(x))
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#define ACQUIRE() THREAD_ANNOTATION_ATTRIBUTE_(acquire_capability())
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#define RELEASE() THREAD_ANNOTATION_ATTRIBUTE_(release_capability())
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class CAPABILITY("mutex") Mutex {
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public:
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void lock() ACQUIRE();
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void unlock() RELEASE();
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};
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void Mutex::lock() ACQUIRE() {}
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void Mutex::unlock() RELEASE() {}
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int main() {
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Mutex m;
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m.lock();
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m.unlock();
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return 0;
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}
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