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/compiler/jni/quick/calling_convention.h b/compiler/jni/quick/calling_convention.h
index 2a6e7d9..efc0b42 100644
--- a/compiler/jni/quick/calling_convention.h
+++ b/compiler/jni/quick/calling_convention.h
@@ -319,7 +319,8 @@
// Position of handle scope and interior fields
FrameOffset HandleScopeOffset() const {
- return FrameOffset(this->displacement_.Int32Value() + frame_pointer_size_); // above Method*
+ return FrameOffset(this->displacement_.Int32Value() + sizeof(StackReference<mirror::ArtMethod>));
+ // above Method reference
}
FrameOffset HandleScopeLinkOffset() const {