/* * Copyright (c) 1997, 2017, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP #define SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP #include "interpreter/bytecode.hpp" #include "interpreter/linkResolver.hpp" #include "memory/universe.hpp" #include "oops/method.hpp" #include "runtime/frame.inline.hpp" #include "runtime/signature.hpp" #include "runtime/thread.hpp" #include "utilities/macros.hpp" // 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 class to access current interpreter state class LastFrameAccessor : public StackObj { frame _last_frame; public: LastFrameAccessor(JavaThread* thread) { assert(thread == Thread::current(), "sanity"); _last_frame = thread->last_frame(); } bool is_interpreted_frame() const { return _last_frame.is_interpreted_frame(); } Method* method() const { return _last_frame.interpreter_frame_method(); } address bcp() const { return _last_frame.interpreter_frame_bcp(); } int bci() const { return _last_frame.interpreter_frame_bci(); } address mdp() const { return _last_frame.interpreter_frame_mdp(); } void set_bcp(address bcp) { _last_frame.interpreter_frame_set_bcp(bcp); } void set_mdp(address dp) { _last_frame.interpreter_frame_set_mdp(dp); } // pass method to avoid calling unsafe bcp_to_method (partial fix 4926272) Bytecodes::Code code() const { return Bytecodes::code_at(method(), bcp()); } Bytecode bytecode() const { return Bytecode(method(), bcp()); } int get_index_u1(Bytecodes::Code bc) const { return bytecode().get_index_u1(bc); } int get_index_u2(Bytecodes::Code bc) const { return bytecode().get_index_u2(bc); } int get_index_u2_cpcache(Bytecodes::Code bc) const { return bytecode().get_index_u2_cpcache(bc); } int get_index_u4(Bytecodes::Code bc) const { return bytecode().get_index_u4(bc); } int number_of_dimensions() const { return bcp()[3]; } ConstantPoolCacheEntry* cache_entry_at(int i) const { return method()->constants()->cache()->entry_at(i); } ConstantPoolCacheEntry* cache_entry() const { return cache_entry_at(Bytes::get_native_u2(bcp() + 1)); } oop callee_receiver(Symbol* signature) { return _last_frame.interpreter_callee_receiver(signature); } BasicObjectLock* monitor_begin() const { return _last_frame.interpreter_frame_monitor_begin(); } BasicObjectLock* monitor_end() const { return _last_frame.interpreter_frame_monitor_end(); } BasicObjectLock* next_monitor(BasicObjectLock* current) const { return _last_frame.next_monitor_in_interpreter_frame(current); } frame& get_frame() { return _last_frame; } }; static void set_bcp_and_mdp(address bcp, JavaThread*thread); static void note_trap_inner(JavaThread* thread, int reason, const methodHandle& trap_method, int trap_bci, TRAPS); static void note_trap(JavaThread *thread, int reason, TRAPS); #ifdef CC_INTERP // Profile traps in C++ interpreter. static void note_trap(JavaThread* thread, int reason, Method *method, int trap_bci); #endif // CC_INTERP // Inner work method for Interpreter's frequency counter overflow. static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp); public: // Constants static void ldc (JavaThread* thread, bool wide); static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode); // Allocation static void _new (JavaThread* thread, ConstantPool* pool, int index); static void newarray (JavaThread* thread, BasicType type, jint size); static void anewarray (JavaThread* thread, ConstantPool* 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_AbstractMethodErrorWithMethod(JavaThread* thread, Method* oop); static void throw_AbstractMethodErrorVerbose(JavaThread* thread, Klass* recvKlass, Method* missingMethod); static void throw_IncompatibleClassChangeError(JavaThread* thread); static void throw_IncompatibleClassChangeErrorVerbose(JavaThread* thread, Klass* resc, Klass* interfaceKlass); static void throw_StackOverflowError(JavaThread* thread); static void throw_delayed_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); #if INCLUDE_JVMTI static void member_name_arg_or_null(JavaThread* thread, address dmh, Method* m, address bcp); #endif static void throw_pending_exception(JavaThread* thread); #ifdef CC_INTERP // Profile traps in C++ interpreter. static void note_nullCheck_trap (JavaThread* thread, Method *method, int trap_bci); static void note_div0Check_trap (JavaThread* thread, Method *method, int trap_bci); static void note_rangeCheck_trap(JavaThread* thread, Method *method, int trap_bci); static void note_classCheck_trap(JavaThread* thread, Method *method, int trap_bci); static void note_arrayCheck_trap(JavaThread* thread, Method *method, int trap_bci); // A dummy for macros that shall not profile traps. static void note_no_trap(JavaThread* thread, Method *method, int trap_bci) {} #endif // CC_INTERP static void resolve_from_cache(JavaThread* thread, Bytecodes::Code bytecode); private: // Statics & fields static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode); // Calls static void resolve_invoke(JavaThread* thread, Bytecodes::Code bytecode); static void resolve_invokehandle (JavaThread* thread); static void resolve_invokedynamic(JavaThread* thread); public: // 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); // Breakpoints static void _breakpoint(JavaThread* thread, Method* method, address bcp); static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp); static void set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code); static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(LastFrameAccessor(thread).bcp()) == 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, Method* method); static address slow_signature_handler(JavaThread* thread, Method* method, intptr_t* from, intptr_t* to); #if defined(IA32) || defined(AMD64) || defined(ARM) // Popframe support (only needed on x86, AMD64 and ARM) static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address); #endif // bytecode tracing is only used by the TraceBytecodes static intptr_t trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2) PRODUCT_RETURN0; // Platform dependent stuff #include CPU_HEADER(interpreterRT) // optional normalization of fingerprints to reduce the number of adapters static uint64_t normalize_fast_native_fingerprint(uint64_t fingerprint); // Interpreter's frequency counter overflow static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp); // Interpreter profiling support static jint bcp_to_di(Method* method, address cur_bcp); static void profile_method(JavaThread* thread); static void update_mdp_for_ret(JavaThread* thread, int bci); #ifdef ASSERT static void verify_mdp(Method* method, address bcp, address mdp); #endif // ASSERT static MethodCounters* build_method_counters(JavaThread* thread, Method* m); }; 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* _fingerprints; // the fingerprint collection static GrowableArray
* _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(const methodHandle& method); static void add(uint64_t fingerprint, address handler); }; #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP