Re: [Valgrind-users] cannot get Helgrind/DRD work with C++11 thread

[Bart V. A. <bva...@ac...>]

On 06/06/14 07:27, Dave Ohlsson wrote:
> I posted yesterday a question to stackoverflow regarding problems I am
> having with Helgrind/DRD and C++11 thread:
> 
> http://stackoverflow.com/questions/24060626/cannot-get-helgrind-drd-work-with-c11-thread
> 
> but got no answer.

I think the source code comments in the test program below answer your question.

Bart.

$ cat drd/tests/std_thread.cpp
// 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)
#define _GLIBCXX_EXTERN_TEMPLATE -1

#include <iostream>
#include <thread>

int main(int argc, char** argv)
{
  std::thread t( []() { } );
  t.join();
  std::cerr << "Done.\n";
  return 0;
}