Sat, 01 Sep 2012 13:25:18 -0400
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
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.
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 */
25 #ifndef SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP
26 #define SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP
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 "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
48 // The InterpreterRuntime is called by the interpreter for everything
49 // that cannot/should not be dealt with in assembly and needs C support.
51 class InterpreterRuntime: AllStatic {
52 friend class BytecodeClosure; // for method and bcp
53 friend class PrintingClosure; // for method and bcp
55 private:
56 // Helper functions to access current interpreter state
57 static frame last_frame(JavaThread *thread) { return thread->last_frame(); }
58 static Method* 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 get_index_u4(JavaThread *thread, Bytecodes::Code bc)
75 { return bytecode(thread).get_index_u4(bc); }
76 static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
78 static ConstantPoolCacheEntry* cache_entry_at(JavaThread *thread, int i) { return method(thread)->constants()->cache()->entry_at(i); }
79 static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return cache_entry_at(thread, Bytes::get_native_u2(bcp(thread) + 1)); }
80 static void note_trap(JavaThread *thread, int reason, TRAPS);
82 // Inner work method for Interpreter's frequency counter overflow
83 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp);
85 public:
86 // Constants
87 static void ldc (JavaThread* thread, bool wide);
88 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode);
90 // Allocation
91 static void _new (JavaThread* thread, ConstantPool* pool, int index);
92 static void newarray (JavaThread* thread, BasicType type, jint size);
93 static void anewarray (JavaThread* thread, ConstantPool* pool, int index, jint size);
94 static void multianewarray(JavaThread* thread, jint* first_size_address);
95 static void register_finalizer(JavaThread* thread, oopDesc* obj);
97 // Quicken instance-of and check-cast bytecodes
98 static void quicken_io_cc(JavaThread* thread);
100 // Exceptions thrown by the interpreter
101 static void throw_AbstractMethodError(JavaThread* thread);
102 static void throw_IncompatibleClassChangeError(JavaThread* thread);
103 static void throw_StackOverflowError(JavaThread* thread);
104 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
105 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
106 static void create_exception(JavaThread* thread, char* name, char* message);
107 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
108 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
109 static void throw_pending_exception(JavaThread* thread);
111 // Statics & fields
112 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
114 // Synchronization
115 static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
116 static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
118 static void throw_illegal_monitor_state_exception(JavaThread* thread);
119 static void new_illegal_monitor_state_exception(JavaThread* thread);
121 // Calls
122 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
123 static void resolve_invokehandle (JavaThread* thread);
124 static void resolve_invokedynamic(JavaThread* thread);
126 // Breakpoints
127 static void _breakpoint(JavaThread* thread, Method* method, address bcp);
128 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp);
129 static void set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code);
130 static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
132 // Safepoints
133 static void at_safepoint(JavaThread* thread);
135 // Debugger support
136 static void post_field_access(JavaThread *thread, oopDesc* obj,
137 ConstantPoolCacheEntry *cp_entry);
138 static void post_field_modification(JavaThread *thread, oopDesc* obj,
139 ConstantPoolCacheEntry *cp_entry, jvalue *value);
140 static void post_method_entry(JavaThread *thread);
141 static void post_method_exit (JavaThread *thread);
142 static int interpreter_contains(address pc);
144 // Native signature handlers
145 static void prepare_native_call(JavaThread* thread, Method* method);
146 static address slow_signature_handler(JavaThread* thread,
147 Method* method,
148 intptr_t* from, intptr_t* to);
150 #if defined(IA32) || defined(AMD64) || defined(ARM)
151 // Popframe support (only needed on x86, AMD64 and ARM)
152 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
153 #endif
155 // Platform dependent stuff
156 #ifdef TARGET_ARCH_x86
157 # include "interpreterRT_x86.hpp"
158 #endif
159 #ifdef TARGET_ARCH_sparc
160 # include "interpreterRT_sparc.hpp"
161 #endif
162 #ifdef TARGET_ARCH_zero
163 # include "interpreterRT_zero.hpp"
164 #endif
165 #ifdef TARGET_ARCH_arm
166 # include "interpreterRT_arm.hpp"
167 #endif
168 #ifdef TARGET_ARCH_ppc
169 # include "interpreterRT_ppc.hpp"
170 #endif
173 // Interpreter's frequency counter overflow
174 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
176 // Interpreter profiling support
177 static jint bcp_to_di(Method* method, address cur_bcp);
178 static void profile_method(JavaThread* thread);
179 static void update_mdp_for_ret(JavaThread* thread, int bci);
180 #ifdef ASSERT
181 static void verify_mdp(Method* method, address bcp, address mdp);
182 #endif // ASSERT
183 };
186 class SignatureHandlerLibrary: public AllStatic {
187 public:
188 enum { buffer_size = 1*K }; // the size of the temporary code buffer
189 enum { blob_size = 32*K }; // the size of a handler code blob.
191 private:
192 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
193 static address _handler; // next available address within _handler_blob;
194 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
195 static GrowableArray<address>* _handlers; // the corresponding handlers
196 static address _buffer; // the temporary code buffer
198 static address set_handler_blob();
199 static void initialize();
200 static address set_handler(CodeBuffer* buffer);
201 static void pd_set_handler(address handler);
203 public:
204 static void add(methodHandle method);
205 };
207 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP