interpreterRuntime.hpp revision 0:a61af66fc99e 
1/*
2 * Copyright 1997-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25// The InterpreterRuntime is called by the interpreter for everything
26// that cannot/should not be dealt with in assembly and needs C support.
27
28class InterpreterRuntime: AllStatic {
29  friend class BytecodeClosure; // for method and bcp
30  friend class PrintingClosure; // for method and bcp
31
32 private:
33  // Helper functions to access current interpreter state
34  static frame     last_frame(JavaThread *thread)    { return thread->last_frame(); }
35  static methodOop method(JavaThread *thread)        { return last_frame(thread).interpreter_frame_method(); }
36  static address   bcp(JavaThread *thread)           { return last_frame(thread).interpreter_frame_bcp(); }
37  static void      set_bcp_and_mdp(address bcp, JavaThread*thread);
38  static Bytecodes::Code code(JavaThread *thread)       { return Bytecodes::code_at(bcp(thread)); }
39  static bool      already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
40  static int       one_byte_index(JavaThread *thread)   { return bcp(thread)[1]; }
41  static int       two_byte_index(JavaThread *thread)   { return Bytes::get_Java_u2(bcp(thread) + 1); }
42  static int       number_of_dimensions(JavaThread *thread)  { return bcp(thread)[3]; }
43  static ConstantPoolCacheEntry* cache_entry(JavaThread *thread)  { return method(thread)->constants()->cache()->entry_at(Bytes::get_native_u2(bcp(thread) + 1)); }
44  static void      note_trap(JavaThread *thread, int reason, TRAPS);
45
46 public:
47  // Constants
48  static void    ldc           (JavaThread* thread, bool wide);
49
50  // Allocation
51  static void    _new          (JavaThread* thread, constantPoolOopDesc* pool, int index);
52  static void    newarray      (JavaThread* thread, BasicType type, jint size);
53  static void    anewarray     (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size);
54  static void    multianewarray(JavaThread* thread, jint* first_size_address);
55  static void    register_finalizer(JavaThread* thread, oopDesc* obj);
56
57  // Quicken instance-of and check-cast bytecodes
58  static void    quicken_io_cc(JavaThread* thread);
59
60  // Exceptions thrown by the interpreter
61  static void    throw_AbstractMethodError(JavaThread* thread);
62  static void    throw_IncompatibleClassChangeError(JavaThread* thread);
63  static void    throw_StackOverflowError(JavaThread* thread);
64  static void    throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
65  static void    throw_ClassCastException(JavaThread* thread, oopDesc* obj);
66  static void    create_exception(JavaThread* thread, char* name, char* message);
67  static void    create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
68  static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
69  static void    throw_pending_exception(JavaThread* thread);
70
71  // Statics & fields
72  static void    resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
73
74  // Synchronization
75  static void    monitorenter(JavaThread* thread, BasicObjectLock* elem);
76  static void    monitorexit (JavaThread* thread, BasicObjectLock* elem);
77
78  static void    throw_illegal_monitor_state_exception(JavaThread* thread);
79  static void    new_illegal_monitor_state_exception(JavaThread* thread);
80
81  // Calls
82  static void    resolve_invoke     (JavaThread* thread, Bytecodes::Code bytecode);
83
84  // Breakpoints
85  static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
86  static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
87  static void            set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
88  static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
89
90  // Safepoints
91  static void    at_safepoint(JavaThread* thread);
92
93  // Debugger support
94  static void post_field_access(JavaThread *thread, oopDesc* obj,
95    ConstantPoolCacheEntry *cp_entry);
96  static void post_field_modification(JavaThread *thread, oopDesc* obj,
97    ConstantPoolCacheEntry *cp_entry, jvalue *value);
98  static void post_method_entry(JavaThread *thread);
99  static void post_method_exit (JavaThread *thread);
100  static int  interpreter_contains(address pc);
101
102  // Native signature handlers
103  static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
104  static address slow_signature_handler(JavaThread* thread,
105                                        methodOopDesc* method,
106                                        intptr_t* from, intptr_t* to);
107
108#if defined(IA32) || defined(AMD64)
109  // Popframe support (only needed on x86 and AMD64)
110  static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
111#endif
112
113  // Platform dependent stuff
114  #include "incls/_interpreterRT_pd.hpp.incl"
115
116  // Interpreter's frequency counter overflow
117  static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
118
119  // Interpreter profiling support
120  static jint    bcp_to_di(methodOopDesc* method, address cur_bcp);
121  static jint    profile_method(JavaThread* thread, address cur_bcp);
122  static void    update_mdp_for_ret(JavaThread* thread, int bci);
123#ifdef ASSERT
124  static void    verify_mdp(methodOopDesc* method, address bcp, address mdp);
125#endif // ASSERT
126};
127
128
129class SignatureHandlerLibrary: public AllStatic {
130 public:
131  enum { buffer_size =  1*K }; // the size of the temporary code buffer
132  enum { blob_size   = 32*K }; // the size of a handler code blob.
133
134 private:
135  static BufferBlob*              _handler_blob; // the current buffer blob containing the generated handlers
136  static address                  _handler;      // next available address within _handler_blob;
137  static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
138  static GrowableArray<address>*  _handlers;     // the corresponding handlers
139  static address                  _buffer;       // the temporary code buffer
140
141  static address set_handler_blob();
142  static void initialize();
143  static address set_handler(CodeBuffer* buffer);
144  static void pd_set_handler(address handler);
145
146 public:
147  static void add(methodHandle method);
148};
149