[Interest] Using valgrind to detect threading errors in qt5 code

[Thiago Macieira]

On terça-feira, 10 de abril de 2012 21.44.49, Paul Floyd wrote:
> > As for Qt 5, since locking and unlocking is inlined into the user code, 
> > valgrind might be completely unable to work.
> 
> If the code is inline, then all I can think of would be to recognise the
> opcode sequence and proceed from there.

It's very hard to distinguish a "lock cmpxchg" sequence doing locking from the 
same code sequence doing something else, like allocating a timer ID in the 
lock-free QFreeList.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
     Intel Sweden AB - Registration Number: 556189-6027
     Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
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