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 #ifdef TARGET_OS_FAMILY_bsd
45 # include "thread_bsd.inline.hpp"
46 #endif
47
48 // The InterpreterRuntime is called by the interpreter for everything
49 // that cannot/should not be dealt with in assembly and needs C support.
50
51 class InterpreterRuntime: AllStatic {
52 friend class BytecodeClosure; // for method and bcp
53 friend class PrintingClosure; // for method and bcp
54
55 private:
56 // Helper functions to access current interpreter state
57 static frame last_frame(JavaThread *thread) { return thread->last_frame(); }
58 static methodOop method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); }
59 static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); }
60 static int bci(JavaThread *thread) { return last_frame(thread).interpreter_frame_bci(); }
61 static void set_bcp_and_mdp(address bcp, JavaThread*thread);
62 static Bytecodes::Code code(JavaThread *thread) {
63 // pass method to avoid calling unsafe bcp_to_method (partial fix 4926272)
64 return Bytecodes::code_at(method(thread), bcp(thread));
65 }
66 static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
67 static Bytecode bytecode(JavaThread *thread) { return Bytecode(method(thread), bcp(thread)); }
68 static int get_index_u1(JavaThread *thread, Bytecodes::Code bc)
69 { return bytecode(thread).get_index_u1(bc); }
70 static int get_index_u2(JavaThread *thread, Bytecodes::Code bc)
71 { return bytecode(thread).get_index_u2(bc); }
72 static int get_index_u2_cpcache(JavaThread *thread, Bytecodes::Code bc)
73 { return bytecode(thread).get_index_u2_cpcache(bc); }
74 static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
75
76 static ConstantPoolCacheEntry* cache_entry_at(JavaThread *thread, int i) { return method(thread)->constants()->cache()->entry_at(i); }
77 static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return cache_entry_at(thread, Bytes::get_native_u2(bcp(thread) + 1)); }
78 static void note_trap(JavaThread *thread, int reason, TRAPS);
79
80 // Inner work method for Interpreter's frequency counter overflow
81 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp);
82
83 public:
84 // Constants
85 static void ldc (JavaThread* thread, bool wide);
86 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode);
87
88 // Allocation
89 static void _new (JavaThread* thread, constantPoolOopDesc* pool, int index);
90 static void newarray (JavaThread* thread, BasicType type, jint size);
91 static void anewarray (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size);
92 static void multianewarray(JavaThread* thread, jint* first_size_address);
93 static void register_finalizer(JavaThread* thread, oopDesc* obj);
94
95 // Quicken instance-of and check-cast bytecodes
96 static void quicken_io_cc(JavaThread* thread);
97
98 // Exceptions thrown by the interpreter
99 static void throw_AbstractMethodError(JavaThread* thread);
100 static void throw_IncompatibleClassChangeError(JavaThread* thread);
101 static void throw_StackOverflowError(JavaThread* thread);
102 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
103 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
104 static void create_exception(JavaThread* thread, char* name, char* message);
105 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
106 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
107 static void throw_pending_exception(JavaThread* thread);
108
109 // Statics & fields
110 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
111
112 // Synchronization
113 static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
114 static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
115
116 static void throw_illegal_monitor_state_exception(JavaThread* thread);
117 static void new_illegal_monitor_state_exception(JavaThread* thread);
118
119 // Calls
120 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
121 static void resolve_invokedynamic(JavaThread* thread);
122
123 // Breakpoints
124 static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
125 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
126 static void set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
127 static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
128
129 // Safepoints
130 static void at_safepoint(JavaThread* thread);
131
132 // Debugger support
133 static void post_field_access(JavaThread *thread, oopDesc* obj,
134 ConstantPoolCacheEntry *cp_entry);
135 static void post_field_modification(JavaThread *thread, oopDesc* obj,
136 ConstantPoolCacheEntry *cp_entry, jvalue *value);
137 static void post_method_entry(JavaThread *thread);
138 static void post_method_exit (JavaThread *thread);
139 static int interpreter_contains(address pc);
140
141 // Native signature handlers
142 static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
143 static address slow_signature_handler(JavaThread* thread,
144 methodOopDesc* method,
145 intptr_t* from, intptr_t* to);
146
147 #if defined(IA32) || defined(AMD64) || defined(ARM)
148 // Popframe support (only needed on x86, AMD64 and ARM)
149 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
150 #endif
151
152 // Platform dependent stuff
153 #ifdef TARGET_ARCH_x86
154 # include "interpreterRT_x86.hpp"
155 #endif
156 #ifdef TARGET_ARCH_sparc
157 # include "interpreterRT_sparc.hpp"
158 #endif
159 #ifdef TARGET_ARCH_zero
160 # include "interpreterRT_zero.hpp"
161 #endif
162 #ifdef TARGET_ARCH_arm
163 # include "interpreterRT_arm.hpp"
164 #endif
165 #ifdef TARGET_ARCH_ppc
166 # include "interpreterRT_ppc.hpp"
167 #endif
168
169
170 // Interpreter's frequency counter overflow
171 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
172
173 // Interpreter profiling support
174 static jint bcp_to_di(methodOopDesc* method, address cur_bcp);
175 static void profile_method(JavaThread* thread);
176 static void update_mdp_for_ret(JavaThread* thread, int bci);
177 #ifdef ASSERT
178 static void verify_mdp(methodOopDesc* method, address bcp, address mdp);
179 #endif // ASSERT
180 };
181
182
183 class SignatureHandlerLibrary: public AllStatic {
184 public:
185 enum { buffer_size = 1*K }; // the size of the temporary code buffer
186 enum { blob_size = 32*K }; // the size of a handler code blob.
187
188 private:
189 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
190 static address _handler; // next available address within _handler_blob;
191 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
192 static GrowableArray<address>* _handlers; // the corresponding handlers
193 static address _buffer; // the temporary code buffer
194
195 static address set_handler_blob();
196 static void initialize();
197 static address set_handler(CodeBuffer* buffer);
198 static void pd_set_handler(address handler);
199
200 public:
201 static void add(methodHandle method);
202 };
203
204 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP