Mercurial > hg > truffle
comparison src/share/vm/runtime/vframe_hp.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | 9987d9d5eb0e |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 class compiledVFrame: public javaVFrame { | |
26 public: | |
27 // JVM state | |
28 methodOop method() const; | |
29 int bci() const; | |
30 StackValueCollection* locals() const; | |
31 StackValueCollection* expressions() const; | |
32 GrowableArray<MonitorInfo*>* monitors() const; | |
33 | |
34 void set_locals(StackValueCollection* values) const; | |
35 | |
36 // Virtuals defined in vframe | |
37 bool is_compiled_frame() const { return true; } | |
38 vframe* sender() const; | |
39 bool is_top() const; | |
40 | |
41 // Casting | |
42 static compiledVFrame* cast(vframe* vf) { | |
43 assert(vf == NULL || vf->is_compiled_frame(), "must be compiled frame"); | |
44 return (compiledVFrame*) vf; | |
45 } | |
46 | |
47 public: | |
48 // Constructors | |
49 compiledVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread, nmethod* nm); | |
50 | |
51 // Update a local in a compiled frame. Update happens when deopt occurs | |
52 void update_local(BasicType type, int index, jvalue value); | |
53 | |
54 // Returns the active nmethod | |
55 nmethod* code() const; | |
56 | |
57 // Returns the scopeDesc | |
58 ScopeDesc* scope() const { return _scope; } | |
59 | |
60 // Returns SynchronizationEntryBCI or bci() (used for synchronization) | |
61 int raw_bci() const; | |
62 | |
63 protected: | |
64 ScopeDesc* _scope; | |
65 | |
66 | |
67 //StackValue resolve(ScopeValue* sv) const; | |
68 BasicLock* resolve_monitor_lock(Location location) const; | |
69 StackValue *create_stack_value(ScopeValue *sv) const; | |
70 | |
71 private: | |
72 compiledVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread, ScopeDesc* scope); | |
73 | |
74 #ifndef PRODUCT | |
75 public: | |
76 void verify() const; | |
77 #endif | |
78 }; | |
79 | |
80 // In order to implement set_locals for compiled vframes we must | |
81 // store updated locals in a data structure that contains enough | |
82 // information to recognize equality with a vframe and to store | |
83 // any updated locals. | |
84 | |
85 class jvmtiDeferredLocalVariable; | |
86 class jvmtiDeferredLocalVariableSet : public CHeapObj { | |
87 private: | |
88 | |
89 methodOop _method; // must be GC'd | |
90 int _bci; | |
91 intptr_t* _id; | |
92 GrowableArray<jvmtiDeferredLocalVariable*>* _locals; | |
93 | |
94 public: | |
95 // JVM state | |
96 methodOop method() const { return _method; } | |
97 int bci() const { return _bci; } | |
98 intptr_t* id() const { return _id; } | |
99 GrowableArray<jvmtiDeferredLocalVariable*>* locals() const { return _locals; } | |
100 void set_local_at(int idx, BasicType typ, jvalue val); | |
101 | |
102 // Does the vframe match this jvmtiDeferredLocalVariableSet | |
103 bool matches(vframe* vf); | |
104 // GC | |
105 void oops_do(OopClosure* f); | |
106 | |
107 // constructor | |
108 jvmtiDeferredLocalVariableSet(methodOop method, int bci, intptr_t* id); | |
109 | |
110 // destructor | |
111 ~jvmtiDeferredLocalVariableSet(); | |
112 | |
113 | |
114 }; | |
115 | |
116 class jvmtiDeferredLocalVariable : public CHeapObj { | |
117 public: | |
118 | |
119 jvmtiDeferredLocalVariable(int index, BasicType type, jvalue value); | |
120 | |
121 BasicType type(void) { return _type; } | |
122 int index(void) { return _index; } | |
123 jvalue value(void) { return _value; } | |
124 // Only mutator is for value as only it can change | |
125 void set_value(jvalue value) { _value = value; } | |
126 // For gc | |
127 oop* oop_addr(void) { return (oop*) &_value.l; } | |
128 | |
129 private: | |
130 | |
131 BasicType _type; | |
132 jvalue _value; | |
133 int _index; | |
134 | |
135 }; |