ART: Use StackReference in Quick Stack Frame
The method reference at the bottom of a quick frame is a stack
reference and not a native pointer. This is important for 64b
architectures, where the notions do not coincide.
Change key methods to have StackReference<mirror::ArtMethod>*
parameter instead of mirror::ArtMethod**. Make changes to
invoke stubs for 64b archs, change the frame setup for JNI code
(both generic JNI and compilers), tie up loose ends.
Tested on x86 and x86-64 with host tests. On x86-64, tests succeed
with jni compiler activated. x86-64 QCG was not tested.
Tested on ARM32 with device tests.
Fix ARM64 not saving x19 (used for wSUSPEND) on upcalls.
Tested on ARM64 in interpreter-only + generic-jni mode.
Fix ARM64 JNI Compiler to work with the CL.
Tested on ARM64 in interpreter-only + jni compiler.
Change-Id: I77931a0cbadd04d163b3eb8d6f6a6f8740578f13
diff --git a/runtime/quick_exception_handler.cc b/runtime/quick_exception_handler.cc
index 8300195..243818c 100644
--- a/runtime/quick_exception_handler.cc
+++ b/runtime/quick_exception_handler.cc
@@ -42,7 +42,7 @@
CatchBlockStackVisitor visitor(self_, context_, &exception_ref, this);
visitor.WalkStack(true);
- mirror::ArtMethod* catch_method = *handler_quick_frame_;
+ mirror::ArtMethod* catch_method = handler_quick_frame_->AsMirrorPtr();
if (kDebugExceptionDelivery) {
if (catch_method == nullptr) {
LOG(INFO) << "Handler is upcall";