[Libreoffice] crash in escherex.cxx in master

[Julian Seward]

On Wednesday, June 22, 2011, Michael Meeks wrote:

> 	But a single method:
> 
> 	bool running_under_valgrind (void);
> or
> 	bool running_under_memcheck (void);
> 
> 	so we can switch our allocation semantics auto-magically.
> 
> 	Julian - we have lots of complex stuff; how do we get the simple
> boolean we want out :-)

Oh, I think I missed answering the simple question here.  Thusly:

  #include "valgrind.h"

  bool running_under_valgrind (void)
  {
     return (RUNNING_ON_VALGRIND) ? true : false;
  }

Is that what you want, or did you mean something different?

You might want to cache the result of RUNNING_ON_VALGRIND
so that the common (production) case overhead is reduced to
a load and conditional branch, rather than the strange sequence
of stores and rotates generated by the macro. 

J