Break the debug cycle!

Rationale:
When entering the path that implements method invocation,
it is possible for the interpreter and JIT to cycle around
trying to interpret or compile a method, never making a
decision. This bug fix avoids such cycling with a minimum
of extra runtime overhead.

BUG=28537292

Change-Id: If805b7bc0279019d0ebf322ddd17cb57a9e884eb

1 files changed, 4 insertions, 1 deletions

diff --git a/runtime/interpreter/interpreter.h b/runtime/interpreter/interpreter.h
index 6353a9b7bf..bf4bcff856 100644
--- a/runtime/interpreter/interpreter.h
+++ b/runtime/interpreter/interpreter.h
@@ -33,8 +33,11 @@ class Thread;
 namespace interpreter {
 
 // Called by ArtMethod::Invoke, shadow frames arguments are taken from the args array.
+// The optional stay_in_interpreter parameter (false by default) can be used by clients to
+// explicitly force interpretation in the remaining path that implements method invocation.
 extern void EnterInterpreterFromInvoke(Thread* self, ArtMethod* method,
-                                       mirror::Object* receiver, uint32_t* args, JValue* result)
+                                       mirror::Object* receiver, uint32_t* args, JValue* result,
+                                       bool stay_in_interpreter = false)
     SHARED_REQUIRES(Locks::mutator_lock_);
 
 // 'from_code' denotes whether the deoptimization was explicitly triggered by compiled code.