Override getSymbolAddress

Author: anutosh491

clang/lib/Interpreter/IncrementalExecutor.h

@@ -57,7 +57,7 @@ class IncrementalExecutor {
   virtual llvm::Error removeModule(PartialTranslationUnit &PTU);
   virtual llvm::Error runCtors() const;
   virtual llvm::Error cleanUp();
-  llvm::Expected<llvm::orc::ExecutorAddr>
+  virtual llvm::Expected<llvm::orc::ExecutorAddr>
   getSymbolAddress(llvm::StringRef Name, SymbolNameKind NameKind) const;
 
   llvm::orc::LLJIT &GetExecutionEngine() { return *Jit; }

clang/lib/Interpreter/Wasm.cpp

@@ -144,6 +144,19 @@ llvm::Error WasmIncrementalExecutor::cleanUp() {
   return llvm::Error::success();
 }
 
+llvm::Expected<llvm::orc::ExecutorAddr>
+WasmIncrementalExecutor::getSymbolAddress(llvm::StringRef Name,
+                                          SymbolNameKind NameKind) const {
+  void *Sym = dlsym(RTLD_DEFAULT, Name.str().c_str());
+  if (!Sym) {
+    return llvm::make_error<llvm::StringError>("dlsym failed for symbol: " +
+                                                   Name.str(),
+                                               llvm::inconvertibleErrorCode());
+  }
+
+  return llvm::orc::ExecutorAddr::fromPtr(Sym);
+}
+
 WasmIncrementalExecutor::~WasmIncrementalExecutor() = default;
 
 } // namespace clang

clang/lib/Interpreter/Wasm.h

@@ -29,6 +29,8 @@ class WasmIncrementalExecutor : public IncrementalExecutor {
   llvm::Error removeModule(PartialTranslationUnit &PTU) override;
   llvm::Error runCtors() const override;
   llvm::Error cleanUp() override;
+  llvm::Expected<llvm::orc::ExecutorAddr>
+  getSymbolAddress(llvm::StringRef Name, SymbolNameKind NameKind) const;
 
   ~WasmIncrementalExecutor() override;
 };