Mon, 10 Jan 2011 18:46:29 -0800
4930919: race condition in MDO creation at back branch locations
Summary: Reuse set_method_data_for_bcp() to setup mdp after MDO creation.
Reviewed-by: kvn, never
1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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/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
45 // The InterpreterRuntime is called by the interpreter for everything
46 // that cannot/should not be dealt with in assembly and needs C support.
48 class InterpreterRuntime: AllStatic {
49 friend class BytecodeClosure; // for method and bcp
50 friend class PrintingClosure; // for method and bcp
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]; }
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);
77 // Inner work method for Interpreter's frequency counter overflow
78 static nmethod* frequency_counter_overflow_inner(JavaThread* thread, address branch_bcp);
80 public:
81 // Constants
82 static void ldc (JavaThread* thread, bool wide);
83 static void resolve_ldc (JavaThread* thread, Bytecodes::Code bytecode);
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);
92 // Quicken instance-of and check-cast bytecodes
93 static void quicken_io_cc(JavaThread* thread);
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);
107 // Statics & fields
108 static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
110 // Synchronization
111 static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
112 static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
114 static void throw_illegal_monitor_state_exception(JavaThread* thread);
115 static void new_illegal_monitor_state_exception(JavaThread* thread);
117 // Calls
118 static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
119 static void resolve_invokedynamic(JavaThread* thread);
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; }
127 // Safepoints
128 static void at_safepoint(JavaThread* thread);
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);
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);
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
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
162 // Interpreter's frequency counter overflow
163 static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
165 // Interpreter profiling support
166 static jint bcp_to_di(methodOopDesc* 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(methodOopDesc* method, address bcp, address mdp);
171 #endif // ASSERT
172 };
175 class 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.
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
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);
192 public:
193 static void add(methodHandle method);
194 };
196 #endif // SHARE_VM_INTERPRETER_INTERPRETERRUNTIME_HPP