1 /*
2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP
26 #define SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP
27
28 #include "interpreter/bytecode.hpp"
29 #include "interpreter/linkResolver.hpp"
30 #include "memory/universe.hpp"
31 #include "oops/method.hpp"
32 #include "runtime/frame.hpp"
33 #include "runtime/signature.hpp"
34 #include "runtime/thread.hpp"
35 #include "utilities/macros.hpp"
36
37 // The InterpreterRuntime is called by the interpreter for everything
38 // that cannot/should not be dealt with in assembly and needs C support.
39
40 class InterpreterRuntime: AllStatic {
41 friend class BytecodeClosure; // for method and bcp
42 friend class PrintingClosure; // for method and bcp
43
44 private:
45
46 static void set_bcp_and_mdp(address bcp, JavaThread*thread);
47 static void note_trap_inner(JavaThread* thread, int reason,
48 const methodHandle& trap_method, int trap_bci, TRAPS);
49 static void note_trap(JavaThread *thread, int reason, TRAPS);
50 #ifdef CC_INTERP
51 // Profile traps in C++ interpreter.
52 static void note_trap(JavaThread* thread, int reason, Method *method, int trap_bci);
53 #endif // CC_INTERP
54
55 // Inner work method for Interpreter's frequency counter overflow.
56 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp);
57
58 public:
59 // Constants
60 static void ldc (JavaThread* thread, bool wide);
61 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode);
62
63 // Allocation
64 static void _new (JavaThread* thread, ConstantPool* pool, int index);
65 static void newarray (JavaThread* thread, BasicType type, jint size);
66 static void anewarray (JavaThread* thread, ConstantPool* pool, int index, jint size);
67 static void multianewarray(JavaThread* thread, jint* first_size_address);
68 static void register_finalizer(JavaThread* thread, oopDesc* obj);
69 static void defaultvalue (JavaThread* thread, ConstantPool* pool, int index);
70 static int withfield (JavaThread* thread, ConstantPoolCache* cp_cache);
71 static void uninitialized_static_value_field(JavaThread* thread, oopDesc* mirror, int offset);
72 static void uninitialized_instance_value_field(JavaThread* thread, oopDesc* obj, int offset);
73 static void write_heap_copy (JavaThread* thread, oopDesc* value, int offset, oopDesc* rcv);
74 static void write_flattened_value(JavaThread* thread, oopDesc* value, int offset, oopDesc* rcv);
75 static void read_flattened_field(JavaThread* thread, oopDesc* value, int index, Klass* field_holder);
76
77 // Value Buffers support
78 static void recycle_vtbuffer(void *alloc_ptr);
79 static void recycle_buffered_values(JavaThread* thread);
80 static void return_value(JavaThread* thread, oopDesc* obj);
81 static void return_value_step2(oopDesc* obj, void* alloc_ptr);
82 static void fix_frame_vt_alloc_ptr(JavaThread* thread);
83 static void value_heap_copy(JavaThread* thread, oopDesc* value);
84
85 static void value_array_load(JavaThread* thread, arrayOopDesc* array, int index);
86 static void value_array_store(JavaThread* thread, void* val, arrayOopDesc* array, int index);
87
88 // Quicken instance-of and check-cast bytecodes
89 static void quicken_io_cc(JavaThread* thread);
90
91 // Exceptions thrown by the interpreter
92 static void throw_AbstractMethodError(JavaThread* thread);
93 static void throw_AbstractMethodErrorWithMethod(JavaThread* thread, Method* oop);
94 static void throw_AbstractMethodErrorVerbose(JavaThread* thread,
95 Klass* recvKlass,
96 Method* missingMethod);
97
98 static void throw_IncompatibleClassChangeError(JavaThread* thread);
99 static void throw_IncompatibleClassChangeErrorVerbose(JavaThread* thread,
100 Klass* resc,
101 Klass* interfaceKlass);
102 static void throw_StackOverflowError(JavaThread* thread);
103 static void throw_delayed_StackOverflowError(JavaThread* thread);
104 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, arrayOopDesc* a, jint index);
105 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
106 static void create_exception(JavaThread* thread, char* name, char* message);
107 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
108 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
109 #if INCLUDE_JVMTI
110 static void member_name_arg_or_null(JavaThread* thread, address dmh, Method* m, address bcp);
111 #endif
112 static void throw_pending_exception(JavaThread* thread);
113
114 #ifdef CC_INTERP
115 // Profile traps in C++ interpreter.
116 static void note_nullCheck_trap (JavaThread* thread, Method *method, int trap_bci);
117 static void note_div0Check_trap (JavaThread* thread, Method *method, int trap_bci);
118 static void note_rangeCheck_trap(JavaThread* thread, Method *method, int trap_bci);
119 static void note_classCheck_trap(JavaThread* thread, Method *method, int trap_bci);
120 static void note_arrayCheck_trap(JavaThread* thread, Method *method, int trap_bci);
121 // A dummy for macros that shall not profile traps.
122 static void note_no_trap(JavaThread* thread, Method *method, int trap_bci) {}
123 #endif // CC_INTERP
124
125 static void resolve_from_cache(JavaThread* thread, Bytecodes::Code bytecode);
126 private:
127 // Statics & fields
128 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
129
130 // Calls
131 static void resolve_invoke(JavaThread* thread, Bytecodes::Code bytecode);
132 static void resolve_invokehandle (JavaThread* thread);
133 static void resolve_invokedynamic(JavaThread* thread);
134
135 public:
136 // Synchronization
137 static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
138 static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
139
140 static void throw_illegal_monitor_state_exception(JavaThread* thread);
141 static void new_illegal_monitor_state_exception(JavaThread* thread);
142
143 // Breakpoints
144 static void _breakpoint(JavaThread* thread, Method* method, address bcp);
145 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp);
146 static void set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code);
147 static bool is_breakpoint(JavaThread *thread);
148
149 // Safepoints
150 static void at_safepoint(JavaThread* thread);
151
152 // Debugger support
153 static void post_field_access(JavaThread *thread, oopDesc* obj,
154 ConstantPoolCacheEntry *cp_entry);
155 static void post_field_modification(JavaThread *thread, oopDesc* obj,
156 ConstantPoolCacheEntry *cp_entry, jvalue *value);
157 static void post_method_entry(JavaThread *thread);
158 static void post_method_exit (JavaThread *thread);
159 static int interpreter_contains(address pc);
160
161 // Native signature handlers
162 static void prepare_native_call(JavaThread* thread, Method* method);
163 static address slow_signature_handler(JavaThread* thread,
164 Method* method,
165 intptr_t* from, intptr_t* to);
166
167 #if defined(IA32) || defined(AMD64) || defined(ARM)
168 // Popframe support (only needed on x86, AMD64 and ARM)
169 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
170 #endif
171
172 // bytecode tracing is only used by the TraceBytecodes
173 static intptr_t trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2) PRODUCT_RETURN0;
174
175 // Platform dependent stuff
176 #include CPU_HEADER(interpreterRT)
177
178 // optional normalization of fingerprints to reduce the number of adapters
179 static uint64_t normalize_fast_native_fingerprint(uint64_t fingerprint);
180
181 // Interpreter's frequency counter overflow
182 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
183
184 // Interpreter profiling support
185 static jint bcp_to_di(Method* method, address cur_bcp);
186 static void profile_method(JavaThread* thread);
187 static void update_mdp_for_ret(JavaThread* thread, int bci);
188 #ifdef ASSERT
189 static void verify_mdp(Method* method, address bcp, address mdp);
190 #endif // ASSERT
191 static MethodCounters* build_method_counters(JavaThread* thread, Method* m);
192 };
193
194
195 class SignatureHandlerLibrary: public AllStatic {
196 public:
197 enum { buffer_size = 1*K }; // the size of the temporary code buffer
198 enum { blob_size = 32*K }; // the size of a handler code blob.
199
200 private:
201 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
202 static address _handler; // next available address within _handler_blob;
203 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
204 static GrowableArray<address>* _handlers; // the corresponding handlers
205 static address _buffer; // the temporary code buffer
206
207 static address set_handler_blob();
208 static void initialize();
209 static address set_handler(CodeBuffer* buffer);
210 static void pd_set_handler(address handler);
211
212 public:
213 static void add(const methodHandle& method);
214 static void add(uint64_t fingerprint, address handler);
215 };
216
217 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP