[PATCH] [compiler-rt] Spring cleaning of compiler-rt symbolizers

[Sergey Matveev]

Just saw this CL.

Silently falling back to a different symbolizer is not always acceptable, for performance reasons. In Chromium, given the binary size, we never want to fall back to addr2line if llvm-symbolizer cannot be found. Otherwise this happens:
https://code.google.com/p/chromium/issues/detail?id=390552

So something like a flag to disable this behavior would be nice.


http://reviews.llvm.org/D7827

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