interpreterRuntime.hpp revision 1879:f95d63e2154a 
1/*
2 * Copyright (c) 1997, 2010, 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
48class 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(bcp(thread), method(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_at(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    throw_WrongMethodTypeException(JavaThread* thread, oopDesc* mtype = NULL, oopDesc* mhandle = NULL);
102  static void    create_exception(JavaThread* thread, char* name, char* message);
103  static void    create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
104  static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
105  static void    throw_pending_exception(JavaThread* thread);
106
107  // Statics & fields
108  static void    resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
109
110  // Synchronization
111  static void    monitorenter(JavaThread* thread, BasicObjectLock* elem);
112  static void    monitorexit (JavaThread* thread, BasicObjectLock* elem);
113
114  static void    throw_illegal_monitor_state_exception(JavaThread* thread);
115  static void    new_illegal_monitor_state_exception(JavaThread* thread);
116
117  // Calls
118  static void    resolve_invoke       (JavaThread* thread, Bytecodes::Code bytecode);
119  static void    resolve_invokedynamic(JavaThread* thread);
120
121  // Breakpoints
122  static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
123  static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
124  static void            set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
125  static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
126
127  // Safepoints
128  static void    at_safepoint(JavaThread* thread);
129
130  // Debugger support
131  static void post_field_access(JavaThread *thread, oopDesc* obj,
132    ConstantPoolCacheEntry *cp_entry);
133  static void post_field_modification(JavaThread *thread, oopDesc* obj,
134    ConstantPoolCacheEntry *cp_entry, jvalue *value);
135  static void post_method_entry(JavaThread *thread);
136  static void post_method_exit (JavaThread *thread);
137  static int  interpreter_contains(address pc);
138
139  // Native signature handlers
140  static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
141  static address slow_signature_handler(JavaThread* thread,
142                                        methodOopDesc* method,
143                                        intptr_t* from, intptr_t* to);
144
145#if defined(IA32) || defined(AMD64)
146  // Popframe support (only needed on x86 and AMD64)
147  static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
148#endif
149
150  // Platform dependent stuff
151#ifdef TARGET_ARCH_x86
152# include "interpreterRT_x86.hpp"
153#endif
154#ifdef TARGET_ARCH_sparc
155# include "interpreterRT_sparc.hpp"
156#endif
157#ifdef TARGET_ARCH_zero
158# include "interpreterRT_zero.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(methodOopDesc* method, address cur_bcp);
167  static jint    profile_method(JavaThread* thread, address cur_bcp);
168  static void    update_mdp_for_ret(JavaThread* thread, int bci);
169#ifdef ASSERT
170  static void    verify_mdp(methodOopDesc* 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