Make the unwind cache tread-safe by declaring it thread_local. Solves

segfaults seen on exception handling.  ok kettenis@

diff --git a/gnu/llvm/libunwind/src/UnwindCursor.hpp b/gnu/llvm/libunwind/src/UnwindCursor.hpp
index 31097b4..8eb8d18 100644 (file)
--- a/gnu/llvm/libunwind/src/UnwindCursor.hpp
+++ b/gnu/llvm/libunwind/src/UnwindCursor.hpp
@@ -75,7 +75,7 @@ extern "C" _Unwind_Reason_Code __libunwind_seh_personality(
 
 namespace libunwind {
 
-static UnwindInfoSectionsCache uwis_cache;
+static thread_local UnwindInfoSectionsCache uwis_cache;
 
 #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
 /// Cache of recently found FDEs.