Entry point clean up.

Create set of entry points needed for image methods to avoid fix-up at load time:
 - interpreter - bridge to interpreter, bridge to compiled code
 - jni - dlsym lookup
 - quick - resolution and bridge to interpreter
 - portable - resolution and bridge to interpreter

Fix JNI work around to use JNI work around argument rewriting code that'd been
accidentally disabled.
Remove abstact method error stub, use interpreter bridge instead.
Consolidate trampoline (previously stub) generation in generic helper.
Simplify trampolines to jump directly into assembly code, keeps stack crawlable.
Dex: replace use of int with ThreadOffset for values that are thread offsets.
Tidy entry point routines between interpreter, jni, quick and portable.

Change-Id: I52a7c2bbb1b7e0ff8a3c3100b774212309d0828e
(cherry picked from commit 848871b4d8481229c32e0d048a9856e5a9a17ef9)

1 files changed, 25 insertions, 8 deletions

diff --git a/runtime/oat.h b/runtime/oat.h
index 4bd1871a71..a5c6bed5fc 100644
--- a/runtime/oat.h
+++ b/runtime/oat.h
@@ -44,18 +44,32 @@ class PACKED(4) OatHeader {
   }
   uint32_t GetExecutableOffset() const;
   void SetExecutableOffset(uint32_t executable_offset);
-  const void* GetInterpreterToInterpreterEntry() const;
-  uint32_t GetInterpreterToInterpreterEntryOffset() const;
-  void SetInterpreterToInterpreterEntryOffset(uint32_t offset);
-  const void* GetInterpreterToQuickEntry() const;
-  uint32_t GetInterpreterToQuickEntryOffset() const;
-  void SetInterpreterToQuickEntryOffset(uint32_t offset);
+
+  const void* GetInterpreterToInterpreterBridge() const;
+  uint32_t GetInterpreterToInterpreterBridgeOffset() const;
+  void SetInterpreterToInterpreterBridgeOffset(uint32_t offset);
+  const void* GetInterpreterToCompiledCodeBridge() const;
+  uint32_t GetInterpreterToCompiledCodeBridgeOffset() const;
+  void SetInterpreterToCompiledCodeBridgeOffset(uint32_t offset);
+
+  const void* GetJniDlsymLookup() const;
+  uint32_t GetJniDlsymLookupOffset() const;
+  void SetJniDlsymLookupOffset(uint32_t offset);
+
   const void* GetPortableResolutionTrampoline() const;
   uint32_t GetPortableResolutionTrampolineOffset() const;
   void SetPortableResolutionTrampolineOffset(uint32_t offset);
+  const void* GetPortableToInterpreterBridge() const;
+  uint32_t GetPortableToInterpreterBridgeOffset() const;
+  void SetPortableToInterpreterBridgeOffset(uint32_t offset);
+
   const void* GetQuickResolutionTrampoline() const;
   uint32_t GetQuickResolutionTrampolineOffset() const;
   void SetQuickResolutionTrampolineOffset(uint32_t offset);
+  const void* GetQuickToInterpreterBridge() const;
+  uint32_t GetQuickToInterpreterBridgeOffset() const;
+  void SetQuickToInterpreterBridgeOffset(uint32_t offset);
+
   InstructionSet GetInstructionSet() const;
   uint32_t GetImageFileLocationOatChecksum() const;
   uint32_t GetImageFileLocationOatDataBegin() const;
@@ -74,10 +88,13 @@ class PACKED(4) OatHeader {
   InstructionSet instruction_set_;
   uint32_t dex_file_count_;
   uint32_t executable_offset_;
-  uint32_t interpreter_to_interpreter_entry_offset_;
-  uint32_t interpreter_to_quick_entry_offset_;
+  uint32_t interpreter_to_interpreter_bridge_offset_;
+  uint32_t interpreter_to_compiled_code_bridge_offset_;
+  uint32_t jni_dlsym_lookup_offset_;
   uint32_t portable_resolution_trampoline_offset_;
+  uint32_t portable_to_interpreter_bridge_offset_;
   uint32_t quick_resolution_trampoline_offset_;
+  uint32_t quick_to_interpreter_bridge_offset_;
 
   uint32_t image_file_location_oat_checksum_;
   uint32_t image_file_location_oat_data_begin_;