[weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.
Differential Revision: http://llvm-reviews.chandlerc.com/D2068
Reviewed by Andy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195064 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/RuntimeDyld/JITRegistrar.h b/lib/ExecutionEngine/RuntimeDyld/JITRegistrar.h
index 69e9dbe..6a514ea 100644
--- a/lib/ExecutionEngine/RuntimeDyld/JITRegistrar.h
+++ b/lib/ExecutionEngine/RuntimeDyld/JITRegistrar.h
@@ -16,6 +16,7 @@
/// Global access point for the JIT debugging interface.
class JITRegistrar {
+ virtual void anchor();
public:
/// Instantiates the JIT service.
JITRegistrar() {}
diff --git a/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h b/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h
index 89350cc..9cbde5d 100644
--- a/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h
+++ b/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h
@@ -23,6 +23,7 @@
class ObjectImageCommon : public ObjectImage {
ObjectImageCommon(); // = delete
ObjectImageCommon(const ObjectImageCommon &other); // = delete
+ virtual void anchor();
protected:
object::ObjectFile *ObjFile;
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
index 2c068be..161135a 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
@@ -13,6 +13,7 @@
#define DEBUG_TYPE "dyld"
#include "llvm/ExecutionEngine/RuntimeDyld.h"
+#include "JITRegistrar.h"
#include "ObjectImageCommon.h"
#include "RuntimeDyldELF.h"
#include "RuntimeDyldImpl.h"
@@ -28,6 +29,11 @@
// Empty out-of-line virtual destructor as the key function.
RuntimeDyldImpl::~RuntimeDyldImpl() {}
+// Pin the JITRegistrar's and ObjectImage*'s vtables to this file.
+void JITRegistrar::anchor() {}
+void ObjectImage::anchor() {}
+void ObjectImageCommon::anchor() {}
+
namespace llvm {
void RuntimeDyldImpl::registerEHFrames() {