From 0ed872cdd1e5d7d60983854ea49aff13aa3280c1 Mon Sep 17 00:00:00 2001
From: Alexey Samsonov <samsonov@google.com>
Date: Fri, 28 Jun 2013 15:08:29 +0000
Subject: [PATCH] llvm-symbolizer: don't leave dangling pointers after flushing
 LLVMSymbolizer. Add a destructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185154 91177308-0d34-0410-b5e6-96231b3b80d8
---
 tools/llvm-symbolizer/LLVMSymbolize.cpp | 2 ++
 tools/llvm-symbolizer/LLVMSymbolize.h   | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/tools/llvm-symbolizer/LLVMSymbolize.cpp b/tools/llvm-symbolizer/LLVMSymbolize.cpp
index 59564161b4e..57f34c24729 100644
--- a/tools/llvm-symbolizer/LLVMSymbolize.cpp
+++ b/tools/llvm-symbolizer/LLVMSymbolize.cpp
@@ -202,6 +202,8 @@ std::string LLVMSymbolizer::symbolizeData(const std::string &ModuleName,
 void LLVMSymbolizer::flush() {
   DeleteContainerSeconds(Modules);
   DeleteContainerPointers(ParsedBinariesAndObjects);
+  BinaryForPath.clear();
+  ObjectFileForArch.clear();
 }
 
 static std::string getDarwinDWARFResourceForPath(const std::string &Path) {
diff --git a/tools/llvm-symbolizer/LLVMSymbolize.h b/tools/llvm-symbolizer/LLVMSymbolize.h
index d1f2285aa8a..03c765cc9c3 100644
--- a/tools/llvm-symbolizer/LLVMSymbolize.h
+++ b/tools/llvm-symbolizer/LLVMSymbolize.h
@@ -48,6 +48,9 @@ public:
   };
 
   LLVMSymbolizer(const Options &Opts = Options()) : Opts(Opts) {}
+  ~LLVMSymbolizer() {
+    flush();
+  }
 
   // Returns the result of symbolization for module name/offset as
   // a string (possibly containing newlines).