r367270 - [docs] Add a note about where UBSan emits logs

[Vedant Kumar via cfe-commits]

Author: vedantk
Date: Mon Jul 29 15:54:43 2019
New Revision: 367270

URL: http://llvm.org/viewvc/llvm-project?rev=367270&view=rev
Log:
[docs] Add a note about where UBSan emits logs

Modified:
    cfe/trunk/docs/UndefinedBehaviorSanitizer.rst

Modified: cfe/trunk/docs/UndefinedBehaviorSanitizer.rst
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/UndefinedBehaviorSanitizer.rst?rev=367270&r1=367269&r2=367270&view=diff
==============================================================================
--- cfe/trunk/docs/UndefinedBehaviorSanitizer.rst (original)
+++ cfe/trunk/docs/UndefinedBehaviorSanitizer.rst Mon Jul 29 15:54:43 2019
@@ -224,6 +224,12 @@ will need to:
    ``UBSAN_OPTIONS=print_stacktrace=1``.
 #. Make sure ``llvm-symbolizer`` binary is in ``PATH``.
 
+Logging
+=======
+
+The default log file for diagnostics is "stderr". To log diagnostics to another
+file, you can set ``UBSAN_OPTIONS=log_path=...``.
+
 Silencing Unsigned Integer Overflow
 ===================================
 To silence reports from unsigned integer overflow, you can set