Wed, 03 Jul 2019 20:42:37 +0800
Merge
1 /*
2 * Copyright (c) 1997, 2013, 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 /*
26 * This file has been modified by Loongson Technology in 2015. These
27 * modifications are Copyright (c) 2015 Loongson Technology, and are made
28 * available on the same license terms set forth above.
29 */
31 #ifndef SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP
32 #define SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP
34 #include "interpreter/bytecode.hpp"
35 #include "interpreter/linkResolver.hpp"
36 #include "memory/universe.hpp"
37 #include "oops/method.hpp"
38 #include "runtime/frame.inline.hpp"
39 #include "runtime/signature.hpp"
40 #include "runtime/thread.inline.hpp"
41 #include "utilities/top.hpp"
43 // The InterpreterRuntime is called by the interpreter for everything
44 // that cannot/should not be dealt with in assembly and needs C support.
46 class InterpreterRuntime: AllStatic {
47 friend class BytecodeClosure; // for method and bcp
48 friend class PrintingClosure; // for method and bcp
50 private:
51 // Helper functions to access current interpreter state
52 static frame last_frame(JavaThread *thread) { return thread->last_frame(); }
53 static Method* method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); }
54 static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); }
55 static int bci(JavaThread *thread) { return last_frame(thread).interpreter_frame_bci(); }
56 static void set_bcp_and_mdp(address bcp, JavaThread*thread);
57 static Bytecodes::Code code(JavaThread *thread) {
58 // pass method to avoid calling unsafe bcp_to_method (partial fix 4926272)
59 return Bytecodes::code_at(method(thread), bcp(thread));
60 }
61 static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
62 static Bytecode bytecode(JavaThread *thread) { return Bytecode(method(thread), bcp(thread)); }
63 static int get_index_u1(JavaThread *thread, Bytecodes::Code bc)
64 { return bytecode(thread).get_index_u1(bc); }
65 static int get_index_u2(JavaThread *thread, Bytecodes::Code bc)
66 { return bytecode(thread).get_index_u2(bc); }
67 static int get_index_u2_cpcache(JavaThread *thread, Bytecodes::Code bc)
68 { return bytecode(thread).get_index_u2_cpcache(bc); }
69 static int get_index_u4(JavaThread *thread, Bytecodes::Code bc)
70 { return bytecode(thread).get_index_u4(bc); }
71 static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
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_inner(JavaThread* thread, int reason,
76 methodHandle trap_method, int trap_bci, TRAPS);
77 static void note_trap(JavaThread *thread, int reason, TRAPS);
78 #ifdef CC_INTERP
79 // Profile traps in C++ interpreter.
80 static void note_trap(JavaThread* thread, int reason, Method *method, int trap_bci);
81 #endif // CC_INTERP
83 // Inner work method for Interpreter's frequency counter overflow.
84 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp);
86 public:
87 // Constants
88 static void ldc (JavaThread* thread, bool wide);
89 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode);
91 // Allocation
92 static void _new (JavaThread* thread, ConstantPool* pool, int index);
93 static void newarray (JavaThread* thread, BasicType type, jint size);
94 static void anewarray (JavaThread* thread, ConstantPool* pool, int index, jint size);
95 static void multianewarray(JavaThread* thread, jint* first_size_address);
96 static void register_finalizer(JavaThread* thread, oopDesc* obj);
98 // Quicken instance-of and check-cast bytecodes
99 static void quicken_io_cc(JavaThread* thread);
101 // Exceptions thrown by the interpreter
102 static void throw_AbstractMethodError(JavaThread* thread);
103 static void throw_IncompatibleClassChangeError(JavaThread* thread);
104 static void throw_StackOverflowError(JavaThread* thread);
105 static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
106 static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
107 static void create_exception(JavaThread* thread, char* name, char* message);
108 static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
109 static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
110 #if INCLUDE_JVMTI
111 static void member_name_arg_or_null(JavaThread* thread, address dmh, Method* m, address bcp);
112 #endif
113 static void throw_pending_exception(JavaThread* thread);
115 #ifdef CC_INTERP
116 // Profile traps in C++ interpreter.
117 static void note_nullCheck_trap (JavaThread* thread, Method *method, int trap_bci);
118 static void note_div0Check_trap (JavaThread* thread, Method *method, int trap_bci);
119 static void note_rangeCheck_trap(JavaThread* thread, Method *method, int trap_bci);
120 static void note_classCheck_trap(JavaThread* thread, Method *method, int trap_bci);
121 static void note_arrayCheck_trap(JavaThread* thread, Method *method, int trap_bci);
122 // A dummy for makros that shall not profile traps.
123 static void note_no_trap(JavaThread* thread, Method *method, int trap_bci) {}
124 #endif // CC_INTERP
126 // Statics & fields
127 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
129 // Synchronization
130 static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
131 static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
133 static void throw_illegal_monitor_state_exception(JavaThread* thread);
134 static void new_illegal_monitor_state_exception(JavaThread* thread);
136 // Calls
137 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
138 static void resolve_invokehandle (JavaThread* thread);
139 static void resolve_invokedynamic(JavaThread* thread);
141 // Breakpoints
142 static void _breakpoint(JavaThread* thread, Method* method, address bcp);
143 static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, Method* method, address bcp);
144 static void set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code);
145 static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
147 // Safepoints
148 static void at_safepoint(JavaThread* thread);
150 // Debugger support
151 static void post_field_access(JavaThread *thread, oopDesc* obj,
152 ConstantPoolCacheEntry *cp_entry);
153 static void post_field_modification(JavaThread *thread, oopDesc* obj,
154 ConstantPoolCacheEntry *cp_entry, jvalue *value);
155 static void post_method_entry(JavaThread *thread);
156 static void post_method_exit (JavaThread *thread);
157 static int interpreter_contains(address pc);
159 // Native signature handlers
160 static void prepare_native_call(JavaThread* thread, Method* method);
161 static address slow_signature_handler(JavaThread* thread,
162 Method* method,
163 intptr_t* from, intptr_t* to);
165 #if defined(IA32) || defined(AMD64) || defined(ARM) || defined(MIPS)
166 // Popframe support (only needed on x86, AMD64 and ARM)
167 static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
168 #endif
170 // Platform dependent stuff
171 #ifdef TARGET_ARCH_x86
172 # include "interpreterRT_x86.hpp"
173 #endif
174 #ifdef TARGET_ARCH_mips
175 # include "interpreterRT_mips.hpp"
176 #endif
177 #ifdef TARGET_ARCH_sparc
178 # include "interpreterRT_sparc.hpp"
179 #endif
180 #ifdef TARGET_ARCH_zero
181 # include "interpreterRT_zero.hpp"
182 #endif
183 #ifdef TARGET_ARCH_arm
184 # include "interpreterRT_arm.hpp"
185 #endif
186 #ifdef TARGET_ARCH_ppc
187 # include "interpreterRT_ppc.hpp"
188 #endif
191 // Interpreter's frequency counter overflow
192 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
194 // Interpreter profiling support
195 static jint bcp_to_di(Method* method, address cur_bcp);
196 static void profile_method(JavaThread* thread);
197 static void update_mdp_for_ret(JavaThread* thread, int bci);
198 #ifdef ASSERT
199 static void verify_mdp(Method* method, address bcp, address mdp);
200 #endif // ASSERT
201 static MethodCounters* build_method_counters(JavaThread* thread, Method* m);
202 };
205 class SignatureHandlerLibrary: public AllStatic {
206 public:
207 enum { buffer_size = 1*K }; // the size of the temporary code buffer
208 enum { blob_size = 32*K }; // the size of a handler code blob.
210 private:
211 static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
212 static address _handler; // next available address within _handler_blob;
213 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
214 static GrowableArray<address>* _handlers; // the corresponding handlers
215 static address _buffer; // the temporary code buffer
217 static address set_handler_blob();
218 static void initialize();
219 static address set_handler(CodeBuffer* buffer);
220 static void pd_set_handler(address handler);
222 public:
223 static void add(methodHandle method);
224 };
226 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP