Adding multiple object support to MCJIT EH frame handling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192504 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 9 insertions, 26 deletions

diff --git a/tools/lli/RemoteMemoryManager.cpp b/tools/lli/RemoteMemoryManager.cpp
index 8ccfde8fc7..04fc40e426 100644
--- a/tools/lli/RemoteMemoryManager.cpp
+++ b/tools/lli/RemoteMemoryManager.cpp
@@ -204,27 +204,3 @@ uint8_t *RemoteMemoryManager::allocateGlobal(uintptr_t Size, unsigned Alignment)
 void RemoteMemoryManager::deallocateFunctionBody(void *Body) {
   llvm_unreachable("Unexpected!");
 }
-
-static int jit_noop() {
-  return 0;
-}
-
-void *RemoteMemoryManager::getPointerToNamedFunction(const std::string &Name,
-                                                        bool AbortOnFailure) {
-  // We should not invoke parent's ctors/dtors from generated main()!
-  // On Mingw and Cygwin, the symbol __main is resolved to
-  // callee's(eg. tools/lli) one, to invoke wrong duplicated ctors
-  // (and register wrong callee's dtors with atexit(3)).
-  // We expect ExecutionEngine::runStaticConstructorsDestructors()
-  // is called before ExecutionEngine::runFunctionAsMain() is called.
-  if (Name == "__main") return (void*)(intptr_t)&jit_noop;
-
-  // FIXME: Would it be responsible to provide GOT?
-  if (AbortOnFailure) {
-    if (Name == "_GLOBAL_OFFSET_TABLE_")
-      report_fatal_error("Program used external function '" + Name +
-                         "' which could not be resolved!");
-  }
-
-  return NULL;
-}
diff --git a/tools/lli/RemoteMemoryManager.h b/tools/lli/RemoteMemoryManager.h
index ca157a7929..eabe042fff 100644
--- a/tools/lli/RemoteMemoryManager.h
+++ b/tools/lli/RemoteMemoryManager.h
@@ -74,13 +74,20 @@ public:
                                unsigned SectionID, StringRef SectionName,
                                bool IsReadOnly);
 
-  void *getPointerToNamedFunction(const std::string &Name,
-                                  bool AbortOnFailure = true);
+  // For now, remote symbol resolution is not support in lli.  The MCJIT
+  // interface does support this, but clients must provide their own
+  // mechanism for finding remote symbol addresses.  MCJIT will resolve
+  // symbols from Modules it contains.
+  uint64_t getSymbolAddress(const std::string &Name) {}
 
   void notifyObjectLoaded(ExecutionEngine *EE, const ObjectImage *Obj);
 
   bool finalizeMemory(std::string *ErrMsg);
 
+  // For now, remote EH frame registration isn't supported.  Remote symbol
+  // resolution is a prerequisite to supporting remote EH frame registration.
+  void registerEHFrames(uint8_t *Addr, uint64_t LoadAddr, size_t Size) {}
+
   // This is a non-interface function used by lli
   void setRemoteTarget(RemoteTarget *T) { Target = T; }