[yocto] Known toolchain bug?

[Wolfgang Denk]

Dear Gary Thomas,

In message <52FE2B80.9030907 at mlbassoc.com> you wrote:
> > 
> > in message [1] on the Linaro mailing list, Koen Kooi reported a
> > toolchain problem.  I can reproduce the same problem both in Yocto
> > 1.5.1 and witht he current top-of-tree; for example, using the latest
> > autobuilder result
> > core-image-sato-sdk-imx53qsb-20140213124023.rootfs.tar.bz2
> > I get this [source of Koen's test program attached]:
> 
> Source code attachment missing?

Sorry.  Here it is...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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#include <iostream>
#include <thread>
#include <mutex>

std::mutex mx;
int i;

void thrfunc();

int main(void)
{
   i=0;
   std::thread          thr1(thrfunc),thr2(thrfunc);

   thr1.join();
   thr2.join();

   return 0;
}

void thrfunc()
{
   mx.lock();
   i++;
   std::cout << std::this_thread::get_id() << " i: " << i << std::endl;
   mx.unlock();
}