Add llvm libunwind callback to suppress exceptions on apple silicon

See llvm/llvm-project#49036

Author: aaronj0

lib/CppInterOp/Compatibility.h

@@ -71,9 +71,11 @@ static inline char* GetEnv(const char* Var_Name) {
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/Twine.h"
+#include "llvm/BinaryFormat/MachO.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/ExecutionEngine/JITSymbol.h"
 #include "llvm/ExecutionEngine/Orc/LLJIT.h"
+#include "llvm/Object/MachO.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/Path.h"
 

unittests/CppInterOp/InterpreterTest.cpp

@@ -311,3 +311,25 @@ if (llvm::sys::RunningOnValgrind())
   delete ExtInterp;
 #endif
 }
+
+TEST(InterpreterTest, InterpreterExceptions) {
+  Cpp::CreateInterpreter();
+  EXPECT_TRUE(Cpp::Declare("int f() { throw 1; return 2; }") == 0);
+  EXPECT_TRUE(
+      Cpp::Process(
+          "int ex() { try { f(); return 0; } catch(...){return 1;} }") == 0);
+  EXPECT_EQ(Cpp::Evaluate("ex()"), 1)
+      << "Failed to catch exceptions in interpreter";
+}
+
+TEST(InterpreterTest, InterpreterExceptionsCompiledCode) {
+  Cpp::CreateInterpreter();
+  bool caught = false;
+  try {
+    EXPECT_TRUE(Cpp::Declare("int f() { throw 1; return 2; }") == 0);
+    EXPECT_TRUE(Cpp::Process("int res = f();") == 0);
+  } catch (...) {
+    caught = true;
+  }
+  EXPECT_TRUE(caught) << "Unable to catch exception coming from interpreter";
+}