--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/interpreter/interpreterRuntime.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,148 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// The InterpreterRuntime is called by the interpreter for everything
+// that cannot/should not be dealt with in assembly and needs C support.
+
+class InterpreterRuntime: AllStatic {
+  friend class BytecodeClosure; // for method and bcp
+  friend class PrintingClosure; // for method and bcp
+
+ private:
+  // Helper functions to access current interpreter state
+  static frame     last_frame(JavaThread *thread)    { return thread->last_frame(); }
+  static methodOop method(JavaThread *thread)        { return last_frame(thread).interpreter_frame_method(); }
+  static address   bcp(JavaThread *thread)           { return last_frame(thread).interpreter_frame_bcp(); }
+  static void      set_bcp_and_mdp(address bcp, JavaThread*thread);
+  static Bytecodes::Code code(JavaThread *thread)       { return Bytecodes::code_at(bcp(thread)); }
+  static bool      already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
+  static int       one_byte_index(JavaThread *thread)   { return bcp(thread)[1]; }
+  static int       two_byte_index(JavaThread *thread)   { return Bytes::get_Java_u2(bcp(thread) + 1); }
+  static int       number_of_dimensions(JavaThread *thread)  { return bcp(thread)[3]; }
+  static ConstantPoolCacheEntry* cache_entry(JavaThread *thread)  { return method(thread)->constants()->cache()->entry_at(Bytes::get_native_u2(bcp(thread) + 1)); }
+  static void      note_trap(JavaThread *thread, int reason, TRAPS);
+
+ public:
+  // Constants
+  static void    ldc           (JavaThread* thread, bool wide);
+
+  // Allocation
+  static void    _new          (JavaThread* thread, constantPoolOopDesc* pool, int index);
+  static void    newarray      (JavaThread* thread, BasicType type, jint size);
+  static void    anewarray     (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size);
+  static void    multianewarray(JavaThread* thread, jint* first_size_address);
+  static void    register_finalizer(JavaThread* thread, oopDesc* obj);
+
+  // Quicken instance-of and check-cast bytecodes
+  static void    quicken_io_cc(JavaThread* thread);
+
+  // Exceptions thrown by the interpreter
+  static void    throw_AbstractMethodError(JavaThread* thread);
+  static void    throw_IncompatibleClassChangeError(JavaThread* thread);
+  static void    throw_StackOverflowError(JavaThread* thread);
+  static void    throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
+  static void    throw_ClassCastException(JavaThread* thread, oopDesc* obj);
+  static void    create_exception(JavaThread* thread, char* name, char* message);
+  static void    create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
+  static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
+  static void    throw_pending_exception(JavaThread* thread);
+
+  // Statics & fields
+  static void    resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
+
+  // Synchronization
+  static void    monitorenter(JavaThread* thread, BasicObjectLock* elem);
+  static void    monitorexit (JavaThread* thread, BasicObjectLock* elem);
+
+  static void    throw_illegal_monitor_state_exception(JavaThread* thread);
+  static void    new_illegal_monitor_state_exception(JavaThread* thread);
+
+  // Calls
+  static void    resolve_invoke     (JavaThread* thread, Bytecodes::Code bytecode);
+
+  // Breakpoints
+  static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
+  static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
+  static void            set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
+  static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
+
+  // Safepoints
+  static void    at_safepoint(JavaThread* thread);
+
+  // Debugger support
+  static void post_field_access(JavaThread *thread, oopDesc* obj,
+    ConstantPoolCacheEntry *cp_entry);
+  static void post_field_modification(JavaThread *thread, oopDesc* obj,
+    ConstantPoolCacheEntry *cp_entry, jvalue *value);
+  static void post_method_entry(JavaThread *thread);
+  static void post_method_exit (JavaThread *thread);
+  static int  interpreter_contains(address pc);
+
+  // Native signature handlers
+  static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
+  static address slow_signature_handler(JavaThread* thread,
+                                        methodOopDesc* method,
+                                        intptr_t* from, intptr_t* to);
+
+#if defined(IA32) || defined(AMD64)
+  // Popframe support (only needed on x86 and AMD64)
+  static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
+#endif
+
+  // Platform dependent stuff
+  #include "incls/_interpreterRT_pd.hpp.incl"
+
+  // Interpreter's frequency counter overflow
+  static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
+
+  // Interpreter profiling support
+  static jint    bcp_to_di(methodOopDesc* method, address cur_bcp);
+  static jint    profile_method(JavaThread* thread, address cur_bcp);
+  static void    update_mdp_for_ret(JavaThread* thread, int bci);
+#ifdef ASSERT
+  static void    verify_mdp(methodOopDesc* method, address bcp, address mdp);
+#endif // ASSERT
+};
+
+
+class SignatureHandlerLibrary: public AllStatic {
+ public:
+  enum { buffer_size =  1*K }; // the size of the temporary code buffer
+  enum { blob_size   = 32*K }; // the size of a handler code blob.
+
+ private:
+  static BufferBlob*              _handler_blob; // the current buffer blob containing the generated handlers
+  static address                  _handler;      // next available address within _handler_blob;
+  static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
+  static GrowableArray<address>*  _handlers;     // the corresponding handlers
+  static address                  _buffer;       // the temporary code buffer
+
+  static address set_handler_blob();
+  static void initialize();
+  static address set_handler(CodeBuffer* buffer);
+  static void pd_set_handler(address handler);
+
+ public:
+  static void add(methodHandle method);
+};