1 /*
2 * Copyright (c) 1997, 2011, 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/methodOop.hpp"
32 #include "runtime/frame.inline.hpp"
33 #include "runtime/signature.hpp"
34 #include "utilities/top.hpp"
35 #ifdef TARGET_OS_FAMILY_linux
36 # include "thread_linux.inline.hpp"
37 #endif
38 #ifdef TARGET_OS_FAMILY_solaris
39 # include "thread_solaris.inline.hpp"
40 #endif
41 #ifdef TARGET_OS_FAMILY_windows
42 # include "thread_windows.inline.hpp"
43 #endif
44
45 // The InterpreterRuntime is called by the interpreter for everything
46 // that cannot/should not be dealt with in assembly and needs C support.
47
48 class InterpreterRuntime: AllStatic {
49 friend class BytecodeClosure; // for method and bcp
50 friend class PrintingClosure; // for method and bcp
51
52 private:
53 // Helper functions to access current interpreter state
54 static frame last_frame(JavaThread *thread) { return thread->last_frame(); }
55 static methodOop method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); }
56 static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); }
57 static int bci(JavaThread *thread) { return last_frame(thread).interpreter_frame_bci(); }
58 static void set_bcp_and_mdp(address bcp, JavaThread*thread);
59 static Bytecodes::Code code(JavaThread *thread) {
60 // pass method to avoid calling unsafe bcp_to_method (partial fix 4926272)
61 return Bytecodes::code_at(method(thread), bcp(thread));
62 }
63 static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
64 static Bytecode bytecode(JavaThread *thread) { return Bytecode(method(thread), bcp(thread)); }
65 static int get_index_u1(JavaThread *thread, Bytecodes::Code bc)
66 { return bytecode(thread).get_index_u1(bc); }
67 static int get_index_u2(JavaThread *thread, Bytecodes::Code bc)
68 { return bytecode(thread).get_index_u2(bc); }
69 static int get_index_u2_cpcache(JavaThread *thread, Bytecodes::Code bc)
70 { return bytecode(thread).get_index_u2_cpcache(bc); }
71 static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
72
73 static ConstantPoolCacheEntry* cache_entry_at(JavaThread *thread, int i) { return method(thread)->constants()->cache()->entry_at(i); }
74 static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return cache_entry_at(thread, Bytes::get_native_u2(bcp(thread) + 1)); }
75 static void note_trap(JavaThread *thread, int reason, TRAPS);
76
77 // Inner work method for Interpreter's frequency counter overflow
78 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp);
79
80 public:
81 // Constants
82 static void ldc (JavaThread* thread, bool wide);
83 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode);
84
85 // Allocation
86 static void _new (JavaThread* thread, constantPoolOopDesc* pool, int index);
87 static void newarray (JavaThread* thread, BasicType type, jint size);
88 static void anewarray (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size);
89 static void multianewarray(JavaThread* thread, jint* first_size_address);
90 static void register_finalizer(JavaThread* thread, oopDesc* obj);
91
92 // Quicken instance-of and check-cast bytecodes
93 static void quicken_io_cc(JavaThread* thread);
94
95 // Exceptions thrown by the interpreter
96 static void throw_AbstractMethodError(JavaThread* thread);
97 static void throw_IncompatibleClassChangeError(JavaThread* thread);
98 static void throw_StackOverflowError(JavaThread* thread);
99 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
100 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
101 static void create_exception(JavaThread* thread, char* name, char* message);
102 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
103 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
104 static void throw_pending_exception(JavaThread* thread);
105
106 // Statics & fields
107 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
108
109 // Synchronization
110 static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
111 static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
112
113 static void throw_illegal_monitor_state_exception(JavaThread* thread);
114 static void new_illegal_monitor_state_exception(JavaThread* thread);
115
116 // Calls
117 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
118 static void resolve_invokedynamic(JavaThread* thread);
119
120 // Breakpoints
121 static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
122 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
123 static void set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
124 static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
125
126 // Safepoints
127 static void at_safepoint(JavaThread* thread);
128
129 // Debugger support
130 static void post_field_access(JavaThread *thread, oopDesc* obj,
131 ConstantPoolCacheEntry *cp_entry);
132 static void post_field_modification(JavaThread *thread, oopDesc* obj,
133 ConstantPoolCacheEntry *cp_entry, jvalue *value);
134 static void post_method_entry(JavaThread *thread);
135 static void post_method_exit (JavaThread *thread);
136 static int interpreter_contains(address pc);
137
138 // Native signature handlers
139 static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
140 static address slow_signature_handler(JavaThread* thread,
141 methodOopDesc* method,
142 intptr_t* from, intptr_t* to);
143
144 #if defined(IA32) || defined(AMD64)
145 // Popframe support (only needed on x86 and AMD64)
146 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
147 #endif
148
149 // Platform dependent stuff
150 #ifdef TARGET_ARCH_x86
151 # include "interpreterRT_x86.hpp"
152 #endif
153 #ifdef TARGET_ARCH_sparc
154 # include "interpreterRT_sparc.hpp"
155 #endif
156 #ifdef TARGET_ARCH_zero
157 # include "interpreterRT_zero.hpp"
158 #endif
159 #ifdef TARGET_ARCH_arm
160 # include "interpreterRT_arm.hpp"
161 #endif
162 #ifdef TARGET_ARCH_ppc
163 # include "interpreterRT_ppc.hpp"
164 #endif
165
166
167 // Interpreter's frequency counter overflow
168 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
169
170 // Interpreter profiling support
171 static jint bcp_to_di(methodOopDesc* method, address cur_bcp);
172 static void profile_method(JavaThread* thread);
173 static void update_mdp_for_ret(JavaThread* thread, int bci);
174 #ifdef ASSERT
175 static void verify_mdp(methodOopDesc* method, address bcp, address mdp);
176 #endif // ASSERT
177 };
178
179
180 class SignatureHandlerLibrary: public AllStatic {
181 public:
182 enum { buffer_size = 1*K }; // the size of the temporary code buffer
183 enum { blob_size = 32*K }; // the size of a handler code blob.
184
185 private:
186 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
187 static address _handler; // next available address within _handler_blob;
188 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
189 static GrowableArray<address>* _handlers; // the corresponding handlers
190 static address _buffer; // the temporary code buffer
191
192 static address set_handler_blob();
193 static void initialize();
194 static address set_handler(CodeBuffer* buffer);
195 static void pd_set_handler(address handler);
196
197 public:
198 static void add(methodHandle method);
199 };
200
201 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP