[PATCH] [ASan] Add process basename to log name and error message to simplify analysis of sanitized systems logs.

[Kostya Serebryany]

> > You mean initialize it in _asan_init, _msan_init, etc.? Ok.

> 


Yes, create something like InitializeBinaryName() and GetBinaryName(), GetWhateverElseName() in sanitizer_common and call it in tool init routines.

> > I could but is there a good reason not to make this default (besides legacy scripts)?

> 


legacy scripts is a good reason by itself, but more importantly, you are the first to request this in 4 years, 
which means that most users don't need it. If they don't need it, extra bloat in the report will be a distraction.
If we see that the feature is useful we can always set the flag on by default.


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http://reviews.llvm.org/D7333

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