Mercurial > hg > truffle
diff src/share/vm/interpreter/interpreterRuntime.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | ba764ed4b6f2 |
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--- /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); +};