[ExecutionEngine][RuntimeDyld] Move JITSymbol from ExecutionEngine to RuntimeDyld.

JITSymbol really belongs in RuntimeDyld. This should fix the llvm-rtdyld link
failures caused by r277943.

llvm-svn: 277945

1 files changed, 41 insertions, 0 deletions

diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/JITSymbol.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/JITSymbol.cpp
new file mode 100644
index 00000000000..8769dcf7374
--- /dev/null
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/JITSymbol.cpp
@@ -0,0 +1,41 @@
+//===----------- JITSymbol.cpp - JITSymbol class implementation -----------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// JITSymbol class implementation plus helper functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ExecutionEngine/JITSymbol.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/Object/SymbolicFile.h"
+
+using namespace llvm;
+
+JITSymbolFlags llvm::JITSymbolFlags::fromGlobalValue(const GlobalValue &GV) {
+  JITSymbolFlags Flags = JITSymbolFlags::None;
+  if (GV.hasWeakLinkage() || GV.hasLinkOnceLinkage())
+    Flags |= JITSymbolFlags::Weak;
+  if (GV.hasCommonLinkage())
+    Flags |= JITSymbolFlags::Common;
+  if (!GV.hasLocalLinkage() && !GV.hasHiddenVisibility())
+    Flags |= JITSymbolFlags::Exported;
+  return Flags;
+}
+
+JITSymbolFlags
+llvm::JITSymbolFlags::fromObjectSymbol(const object::BasicSymbolRef &Symbol) {
+  JITSymbolFlags Flags = JITSymbolFlags::None;
+  if (Symbol.getFlags() & object::BasicSymbolRef::SF_Weak)
+    Flags |= JITSymbolFlags::Weak;
+  if (Symbol.getFlags() & object::BasicSymbolRef::SF_Common)
+    Flags |= JITSymbolFlags::Common;
+  if (Symbol.getFlags() & object::BasicSymbolRef::SF_Exported)
+    Flags |= JITSymbolFlags::Exported;
+  return Flags;
+}