interpreterRuntime.hpp revision 3864:f34d701e952e 
1/*
2 * Copyright (c) 1997, 2012, 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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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.inline.hpp"
33#include "runtime/signature.hpp"
34#include "runtime/thread.inline.hpp"
35#include "utilities/top.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
40class InterpreterRuntime: AllStatic {
41  friend class BytecodeClosure; // for method and bcp
42  friend class PrintingClosure; // for method and bcp
43
44 private:
45  // Helper functions to access current interpreter state
46  static frame     last_frame(JavaThread *thread)    { return thread->last_frame(); }
47  static Method*   method(JavaThread *thread)        { return last_frame(thread).interpreter_frame_method(); }
48  static address   bcp(JavaThread *thread)           { return last_frame(thread).interpreter_frame_bcp(); }
49  static int       bci(JavaThread *thread)           { return last_frame(thread).interpreter_frame_bci(); }
50  static void      set_bcp_and_mdp(address bcp, JavaThread*thread);
51  static Bytecodes::Code code(JavaThread *thread)    {
52    // pass method to avoid calling unsafe bcp_to_method (partial fix 4926272)
53    return Bytecodes::code_at(method(thread), bcp(thread));
54  }
55  static bool      already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
56  static Bytecode  bytecode(JavaThread *thread)      { return Bytecode(method(thread), bcp(thread)); }
57  static int       get_index_u1(JavaThread *thread, Bytecodes::Code bc)
58                                                        { return bytecode(thread).get_index_u1(bc); }
59  static int       get_index_u2(JavaThread *thread, Bytecodes::Code bc)
60                                                        { return bytecode(thread).get_index_u2(bc); }
61  static int       get_index_u2_cpcache(JavaThread *thread, Bytecodes::Code bc)
62                                                        { return bytecode(thread).get_index_u2_cpcache(bc); }
63  static int       get_index_u4(JavaThread *thread, Bytecodes::Code bc)
64                                                        { return bytecode(thread).get_index_u4(bc); }
65  static int       number_of_dimensions(JavaThread *thread)  { return bcp(thread)[3]; }
66
67  static ConstantPoolCacheEntry* cache_entry_at(JavaThread *thread, int i)  { return method(thread)->constants()->cache()->entry_at(i); }
68  static ConstantPoolCacheEntry* cache_entry(JavaThread *thread)            { return cache_entry_at(thread, Bytes::get_native_u2(bcp(thread) + 1)); }
69  static void      note_trap(JavaThread *thread, int reason, TRAPS);
70
71  // Inner work method for Interpreter's frequency counter overflow
72  static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp);
73
74 public:
75  // Constants
76  static void    ldc           (JavaThread* thread, bool wide);
77  static void    resolve_ldc   (JavaThread* thread, Bytecodes::Code bytecode);
78
79  // Allocation
80  static void    _new          (JavaThread* thread, ConstantPool* pool, int index);
81  static void    newarray      (JavaThread* thread, BasicType type, jint size);
82  static void    anewarray     (JavaThread* thread, ConstantPool* pool, int index, jint size);
83  static void    multianewarray(JavaThread* thread, jint* first_size_address);
84  static void    register_finalizer(JavaThread* thread, oopDesc* obj);
85
86  // Quicken instance-of and check-cast bytecodes
87  static void    quicken_io_cc(JavaThread* thread);
88
89  // Exceptions thrown by the interpreter
90  static void    throw_AbstractMethodError(JavaThread* thread);
91  static void    throw_IncompatibleClassChangeError(JavaThread* thread);
92  static void    throw_StackOverflowError(JavaThread* thread);
93  static void    throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
94  static void    throw_ClassCastException(JavaThread* thread, oopDesc* obj);
95  static void    create_exception(JavaThread* thread, char* name, char* message);
96  static void    create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
97  static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
98  static void    throw_pending_exception(JavaThread* thread);
99
100  // Statics & fields
101  static void    resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
102
103  // Synchronization
104  static void    monitorenter(JavaThread* thread, BasicObjectLock* elem);
105  static void    monitorexit (JavaThread* thread, BasicObjectLock* elem);
106
107  static void    throw_illegal_monitor_state_exception(JavaThread* thread);
108  static void    new_illegal_monitor_state_exception(JavaThread* thread);
109
110  // Calls
111  static void    resolve_invoke       (JavaThread* thread, Bytecodes::Code bytecode);
112  static void    resolve_invokehandle (JavaThread* thread);
113  static void    resolve_invokedynamic(JavaThread* thread);
114
115  // Breakpoints
116  static void _breakpoint(JavaThread* thread, Method* method, address bcp);
117  static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp);
118  static void            set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code);
119  static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
120
121  // Safepoints
122  static void    at_safepoint(JavaThread* thread);
123
124  // Debugger support
125  static void post_field_access(JavaThread *thread, oopDesc* obj,
126    ConstantPoolCacheEntry *cp_entry);
127  static void post_field_modification(JavaThread *thread, oopDesc* obj,
128    ConstantPoolCacheEntry *cp_entry, jvalue *value);
129  static void post_method_entry(JavaThread *thread);
130  static void post_method_exit (JavaThread *thread);
131  static int  interpreter_contains(address pc);
132
133  // Native signature handlers
134  static void prepare_native_call(JavaThread* thread, Method* method);
135  static address slow_signature_handler(JavaThread* thread,
136                                        Method* method,
137                                        intptr_t* from, intptr_t* to);
138
139#if defined(IA32) || defined(AMD64) || defined(ARM)
140  // Popframe support (only needed on x86, AMD64 and ARM)
141  static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
142#endif
143
144  // Platform dependent stuff
145#ifdef TARGET_ARCH_x86
146# include "interpreterRT_x86.hpp"
147#endif
148#ifdef TARGET_ARCH_sparc
149# include "interpreterRT_sparc.hpp"
150#endif
151#ifdef TARGET_ARCH_zero
152# include "interpreterRT_zero.hpp"
153#endif
154#ifdef TARGET_ARCH_arm
155# include "interpreterRT_arm.hpp"
156#endif
157#ifdef TARGET_ARCH_ppc
158# include "interpreterRT_ppc.hpp"
159#endif
160
161
162  // Interpreter's frequency counter overflow
163  static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
164
165  // Interpreter profiling support
166  static jint    bcp_to_di(Method* method, address cur_bcp);
167  static void    profile_method(JavaThread* thread);
168  static void    update_mdp_for_ret(JavaThread* thread, int bci);
169#ifdef ASSERT
170  static void    verify_mdp(Method* method, address bcp, address mdp);
171#endif // ASSERT
172};
173
174
175class SignatureHandlerLibrary: public AllStatic {
176 public:
177  enum { buffer_size =  1*K }; // the size of the temporary code buffer
178  enum { blob_size   = 32*K }; // the size of a handler code blob.
179
180 private:
181  static BufferBlob*              _handler_blob; // the current buffer blob containing the generated handlers
182  static address                  _handler;      // next available address within _handler_blob;
183  static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
184  static GrowableArray<address>*  _handlers;     // the corresponding handlers
185  static address                  _buffer;       // the temporary code buffer
186
187  static address set_handler_blob();
188  static void initialize();
189  static address set_handler(CodeBuffer* buffer);
190  static void pd_set_handler(address handler);
191
192 public:
193  static void add(methodHandle method);
194};
195
196#endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP
197