[PATCH] D28686: Fix UBSan bots by blacklisting bits/stl_tree.h.

[Ivan Krasin via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL291918: Fix UBSan bots by blacklisting bits/stl_tree.h. (authored by krasin).

Changed prior to commit:
  https://reviews.llvm.org/D28686?vs=84328&id=84329#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D28686

Files:
  llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
  llvm/trunk/utils/sanitizers/ubsan_blacklist.txt


Index: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
+++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
@@ -555,6 +555,8 @@
       append_common_sanitizer_flags()
       append("-fsanitize=undefined -fno-sanitize=vptr,function -fno-sanitize-recover=all"
               CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+      append("-fsanitize-blacklist=${CMAKE_SOURCE_DIR}/utils/sanitizers/ubsan_blacklist.txt"
+	      CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
     elseif (LLVM_USE_SANITIZER STREQUAL "Thread")
       append_common_sanitizer_flags()
       append("-fsanitize=thread" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
Index: llvm/trunk/utils/sanitizers/ubsan_blacklist.txt
===================================================================
--- llvm/trunk/utils/sanitizers/ubsan_blacklist.txt
+++ llvm/trunk/utils/sanitizers/ubsan_blacklist.txt
@@ -0,0 +1,7 @@
+# This blacklist should be applied when LLVM is built
+# with -fsanitize=undefined instrumentation. It exists
+# because libstdc++ has some undefined behavior issues
+# in some of the headers, in particular, stl_tree.h.
+
+# upcast of address with insufficient space for an object of type std::_Rb_tree_node<...>
+src:*bits/stl_tree.h


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