Call initRuntimeIfNeeded before EnterFrame in interop adapters. (#4672)

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CAdapterGenerator.kt

@@ -361,8 +361,8 @@ private class ExportedElement(val kind: ElementKind,
             |
             |extern "C" KObjHeader* ${cname}_instance(KObjHeader**);
             |static $objectClassC ${cname}_instance_impl(void) {
-            |  KObjHolder result_holder;
             |  Kotlin_initRuntimeIfNeeded();
+            |  KObjHolder result_holder;
             |  KObjHeader* result = ${cname}_instance(result_holder.slot());
             |  return $objectClassC { .pinned = CreateStablePointer(result)};
             |}
@@ -379,8 +379,8 @@ private class ExportedElement(val kind: ElementKind,
         return """
               |extern "C" KObjHeader* $cname(KObjHeader**);
               |static $enumClassC ${cname}_impl(void) {
-              |  KObjHolder result_holder;
               |  Kotlin_initRuntimeIfNeeded();
+              |  KObjHolder result_holder;
               |  KObjHeader* result = $cname(result_holder.slot());
               |  return $enumClassC { .pinned = CreateStablePointer(result)};
               |}
@@ -996,8 +996,8 @@ internal class CAdapterGenerator(val context: Context) : DeclarationDescriptorVi
             val argument = if (needArgument) "value, " else ""
             output("extern \"C\" KObjHeader* Kotlin_box${it.shortNameForPredefinedType}($parameter$maybeComma KObjHeader**);")
             output("static ${translateType(nullableIt)} ${it.createNullableNameForPredefinedType}Impl($parameter) {")
-            output("KObjHolder result_holder;", 1)
             output("Kotlin_initRuntimeIfNeeded();", 1)
+            output("KObjHolder result_holder;", 1)
             output("KObjHeader* result = Kotlin_box${it.shortNameForPredefinedType}($argument result_holder.slot());", 1)
             output("return ${translateType(nullableIt)} { .pinned = CreateStablePointer(result) };", 1)
             output("}")

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/CodeGenerator.kt

@@ -341,6 +341,10 @@ internal class FunctionGenerationContext(val function: LLVMValueRef,
      */
     var forwardingForeignExceptionsTerminatedWith: LLVMValueRef? = null
 
+    // Whether the generating function needs to initialize Kotlin runtime before execution. Useful for interop bridges,
+    // for example.
+    var needsRuntimeInit = false
+
     init {
         irFunction?.let {
             if (!irFunction.isExported()) {
@@ -1207,6 +1211,9 @@ internal class FunctionGenerationContext(val function: LLVMValueRef,
 
     internal fun epilogue() {
         appendingTo(prologueBb) {
+            if (needsRuntimeInit) {
+                call(context.llvm.initRuntimeIfNeeded, emptyList())
+            }
             val slots = if (needSlotsPhi)
                 LLVMBuildArrayAlloca(builder, kObjHeaderPtr, Int32(slotCount).llvm, "")!!
             else

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objcexport/ObjCExportCodeGenerator.kt

@@ -208,7 +208,7 @@ internal class ObjCExportCodeGenerator(
     }
 
     fun FunctionGenerationContext.initRuntimeIfNeeded() {
-        callFromBridge(context.llvm.initRuntimeIfNeeded, emptyList())
+        this.needsRuntimeInit = true
     }
 
     inline fun FunctionGenerationContext.convertKotlin(

kotlin-native/runtime/src/main/cpp/Runtime.cpp

@@ -189,7 +189,7 @@ void AppendToInitializersTail(InitNode *next) {
   initTailNode = next;
 }
 
-void Kotlin_initRuntimeIfNeeded() {
+RUNTIME_NOTHROW void Kotlin_initRuntimeIfNeeded() {
   if (!isValidRuntime()) {
     initRuntime();
     // Register runtime deinit function at thread cleanup.

kotlin-native/runtime/src/main/cpp/Runtime.h

@@ -33,7 +33,7 @@ enum DestroyRuntimeMode {
 
 DestroyRuntimeMode Kotlin_getDestroyRuntimeMode();
 
-void Kotlin_initRuntimeIfNeeded();
+RUNTIME_NOTHROW void Kotlin_initRuntimeIfNeeded();
 void Kotlin_deinitRuntimeIfNeeded();
 
 // Can only be called once.