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// Test whether no race conditions are reported on std::thread. Note: since
// the implementation of std::thread uses the shared pointer implementation,
// that implementation has to be annotated in order to avoid false positives.
// See also http://gcc.gnu.org/onlinedocs/libstdc++/manual/debug.html for more
// information.
#include "../../drd/drd.h"
#define _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(addr) \
ANNOTATE_HAPPENS_BEFORE(addr)
#define _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(addr) \
ANNOTATE_HAPPENS_AFTER(addr)
#include <iostream>
#include <thread>
int main(int argc, char** argv)
{
std::thread t( []() { } );
t.join();
std::cerr << "Done.\n";
return 0;
}
#if defined(__GNUC__) && __GNUC__ -0 < 6
//
// From libstdc++-v3/src/c++11/thread.cc
//
extern "C" void* _v_execute_native_thread_routine(void* __p)
{
std::thread::_Impl_base* __t = static_cast<std::thread::_Impl_base*>(__p);
std::thread::__shared_base_type __local;
__local.swap(__t->_M_this_ptr);
__try {
__t->_M_run();
} __catch(const __cxxabiv1::__forced_unwind&) {
__throw_exception_again;
} __catch(...) {
std::terminate();
}
return 0;
}
#include <system_error>
namespace std
{
void thread::_M_start_thread(__shared_base_type __b)
{
if (!__gthread_active_p())
#if __EXCEPTIONS
throw system_error(make_error_code(errc::operation_not_permitted),
"Enable multithreading to use std::thread");
#else
__throw_system_error(int(errc::operation_not_permitted));
#endif
__b->_M_this_ptr = __b;
int __e = __gthread_create(&_M_id._M_thread, _v_execute_native_thread_routine,
__b.get());
if (__e) {
__b->_M_this_ptr.reset();
__throw_system_error(__e);
}
}
}
#endif
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