ce0c084720
Initial implementation, with known omissions (x86/64, sparc, compiler optim., c-oops, C++ interp.) Reviewed-by: kvn, twisti, never
153 lines
7.3 KiB
C++
153 lines
7.3 KiB
C++
/*
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* Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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// The InterpreterRuntime is called by the interpreter for everything
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// that cannot/should not be dealt with in assembly and needs C support.
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class InterpreterRuntime: AllStatic {
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friend class BytecodeClosure; // for method and bcp
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friend class PrintingClosure; // for method and bcp
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private:
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// Helper functions to access current interpreter state
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static frame last_frame(JavaThread *thread) { return thread->last_frame(); }
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static methodOop method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); }
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static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); }
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static void set_bcp_and_mdp(address bcp, JavaThread*thread);
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static Bytecodes::Code code(JavaThread *thread) {
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// pass method to avoid calling unsafe bcp_to_method (partial fix 4926272)
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return Bytecodes::code_at(bcp(thread), method(thread));
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}
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static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
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static int one_byte_index(JavaThread *thread) { return bcp(thread)[1]; }
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static int two_byte_index(JavaThread *thread) { return Bytes::get_Java_u2(bcp(thread) + 1); }
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static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
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static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return method(thread)->constants()->cache()->entry_at(Bytes::get_native_u2(bcp(thread) + 1)); }
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static void note_trap(JavaThread *thread, int reason, TRAPS);
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public:
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// Constants
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static void ldc (JavaThread* thread, bool wide);
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// Allocation
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static void _new (JavaThread* thread, constantPoolOopDesc* pool, int index);
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static void newarray (JavaThread* thread, BasicType type, jint size);
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static void anewarray (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size);
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static void multianewarray(JavaThread* thread, jint* first_size_address);
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static void register_finalizer(JavaThread* thread, oopDesc* obj);
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// Quicken instance-of and check-cast bytecodes
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static void quicken_io_cc(JavaThread* thread);
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// Exceptions thrown by the interpreter
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static void throw_AbstractMethodError(JavaThread* thread);
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static void throw_IncompatibleClassChangeError(JavaThread* thread);
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static void throw_StackOverflowError(JavaThread* thread);
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static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
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static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
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static void throw_WrongMethodTypeException(JavaThread* thread, oopDesc* mtype = NULL, oopDesc* mhandle = NULL);
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static void create_exception(JavaThread* thread, char* name, char* message);
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static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
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static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
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static void throw_pending_exception(JavaThread* thread);
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// Statics & fields
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static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
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// Synchronization
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static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
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static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
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static void throw_illegal_monitor_state_exception(JavaThread* thread);
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static void new_illegal_monitor_state_exception(JavaThread* thread);
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// Calls
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static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
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// Breakpoints
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static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
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static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
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static void set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
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static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
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// Safepoints
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static void at_safepoint(JavaThread* thread);
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// Debugger support
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static void post_field_access(JavaThread *thread, oopDesc* obj,
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ConstantPoolCacheEntry *cp_entry);
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static void post_field_modification(JavaThread *thread, oopDesc* obj,
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ConstantPoolCacheEntry *cp_entry, jvalue *value);
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static void post_method_entry(JavaThread *thread);
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static void post_method_exit (JavaThread *thread);
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static int interpreter_contains(address pc);
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// Native signature handlers
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static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
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static address slow_signature_handler(JavaThread* thread,
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methodOopDesc* method,
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intptr_t* from, intptr_t* to);
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#if defined(IA32) || defined(AMD64)
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// Popframe support (only needed on x86 and AMD64)
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static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
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#endif
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// Platform dependent stuff
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#include "incls/_interpreterRT_pd.hpp.incl"
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// Interpreter's frequency counter overflow
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static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
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// Interpreter profiling support
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static jint bcp_to_di(methodOopDesc* method, address cur_bcp);
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static jint profile_method(JavaThread* thread, address cur_bcp);
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static void update_mdp_for_ret(JavaThread* thread, int bci);
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#ifdef ASSERT
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static void verify_mdp(methodOopDesc* method, address bcp, address mdp);
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#endif // ASSERT
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};
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class SignatureHandlerLibrary: public AllStatic {
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public:
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enum { buffer_size = 1*K }; // the size of the temporary code buffer
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enum { blob_size = 32*K }; // the size of a handler code blob.
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private:
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static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
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static address _handler; // next available address within _handler_blob;
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static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
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static GrowableArray<address>* _handlers; // the corresponding handlers
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static address _buffer; // the temporary code buffer
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static address set_handler_blob();
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static void initialize();
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static address set_handler(CodeBuffer* buffer);
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static void pd_set_handler(address handler);
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public:
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static void add(methodHandle method);
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};
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