r309873 - [UBSan] Provide default blacklist filename for UBSan

[Han Shen via cfe-commits]

Author: shenhan
Date: Wed Aug  2 12:53:38 2017
New Revision: 309873

URL: http://llvm.org/viewvc/llvm-project?rev=309873&view=rev
Log:
[UBSan] Provide default blacklist filename for UBSan

Summary:
This is to provide a default blacklist filename for UBSan.

While UBSan is turned on, it's better that clang pick up a blacklist file (when exists), just as what ASan / MSan does, so we do not end up adding the "-fsanitize-blacklist" option to every command line.

Reviewers: chandlerc, echristo, vsk, eugenis

Reviewed By: vsk, eugenis

Subscribers: vsk, eugenis, echristo, cfe-commits

Differential Revision: https://reviews.llvm.org/D35849

Modified:
    cfe/trunk/lib/Driver/SanitizerArgs.cpp

Modified: cfe/trunk/lib/Driver/SanitizerArgs.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/SanitizerArgs.cpp?rev=309873&r1=309872&r2=309873&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/SanitizerArgs.cpp (original)
+++ cfe/trunk/lib/Driver/SanitizerArgs.cpp Wed Aug  2 12:53:38 2017
@@ -101,6 +101,8 @@ static bool getDefaultBlacklist(const Dr
     BlacklistFile = "dfsan_abilist.txt";
   else if (Kinds & CFI)
     BlacklistFile = "cfi_blacklist.txt";
+  else if (Kinds & Undefined)
+    BlacklistFile = "ubsan_blacklist.txt";
 
   if (BlacklistFile) {
     clang::SmallString<64> Path(D.ResourceDir);