[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
llvm-svn: 309873
diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp
index 2a3ae51..928cfb8 100644
--- a/clang/lib/Driver/SanitizerArgs.cpp
+++ b/clang/lib/Driver/SanitizerArgs.cpp
@@ -101,6 +101,8 @@
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);