43 public:
44 SimpleScopeDesc(CompiledMethod* code, address pc) {
45 PcDesc* pc_desc = code->pc_desc_at(pc);
46 assert(pc_desc != NULL, "Must be able to find matching PcDesc");
47 DebugInfoReadStream buffer(code, pc_desc->scope_decode_offset());
48 int ignore_sender = buffer.read_int();
49 _method = buffer.read_method();
50 _bci = buffer.read_bci();
51 }
52
53 Method* method() { return _method; }
54 int bci() { return _bci; }
55 };
56
57 // ScopeDescs contain the information that makes source-level debugging of
58 // nmethods possible; each scopeDesc describes a method activation
59
60 class ScopeDesc : public ResourceObj {
61 public:
62 // Constructor
63 ScopeDesc(const CompiledMethod* code, int decode_offset, int obj_decode_offset, bool reexecute, bool rethrow_exception, bool return_oop);
64
65 // Calls above, giving default value of "serialized_null" to the
66 // "obj_decode_offset" argument. (We don't use a default argument to
67 // avoid a .hpp-.hpp dependency.)
68 ScopeDesc(const CompiledMethod* code, int decode_offset, bool reexecute, bool rethrow_exception, bool return_oop);
69
70 // Direct access to scope
71 ScopeDesc* at_offset(int decode_offset) { return new ScopeDesc(this, decode_offset); }
72
73 // JVM state
74 Method* method() const { return _method; }
75 int bci() const { return _bci; }
76 bool should_reexecute() const { return _reexecute; }
77 bool rethrow_exception() const { return _rethrow_exception; }
78 bool return_oop() const { return _return_oop; }
79
80 GrowableArray<ScopeValue*>* locals();
81 GrowableArray<ScopeValue*>* expressions();
82 GrowableArray<MonitorValue*>* monitors();
83 GrowableArray<ScopeValue*>* objects();
84
85 // Stack walking, returns NULL if this is the outer most scope.
86 ScopeDesc* sender() const;
87
88 // Returns where the scope was decoded
89 int decode_offset() const { return _decode_offset; }
90
91 int sender_decode_offset() const { return _sender_decode_offset; }
92
93 // Tells whether sender() returns NULL
94 bool is_top() const;
95
96 private:
97 void initialize(const ScopeDesc* parent, int decode_offset);
98 // Alternative constructors
99 ScopeDesc(const ScopeDesc* parent);
100 ScopeDesc(const ScopeDesc* parent, int decode_offset);
101
102 // JVM state
103 Method* _method;
104 int _bci;
105 bool _reexecute;
106 bool _rethrow_exception;
107 bool _return_oop;
108
109 // Decoding offsets
110 int _decode_offset;
111 int _sender_decode_offset;
112 int _locals_decode_offset;
113 int _expressions_decode_offset;
114 int _monitors_decode_offset;
115
116 // Object pool
117 GrowableArray<ScopeValue*>* _objects;
118
119 // Nmethod information
120 const CompiledMethod* _code;
121
122 // Decoding operations
123 void decode_body();
124 GrowableArray<ScopeValue*>* decode_scope_values(int decode_offset);
125 GrowableArray<MonitorValue*>* decode_monitor_values(int decode_offset);
126 GrowableArray<ScopeValue*>* decode_object_values(int decode_offset);
127
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43 public:
44 SimpleScopeDesc(CompiledMethod* code, address pc) {
45 PcDesc* pc_desc = code->pc_desc_at(pc);
46 assert(pc_desc != NULL, "Must be able to find matching PcDesc");
47 DebugInfoReadStream buffer(code, pc_desc->scope_decode_offset());
48 int ignore_sender = buffer.read_int();
49 _method = buffer.read_method();
50 _bci = buffer.read_bci();
51 }
52
53 Method* method() { return _method; }
54 int bci() { return _bci; }
55 };
56
57 // ScopeDescs contain the information that makes source-level debugging of
58 // nmethods possible; each scopeDesc describes a method activation
59
60 class ScopeDesc : public ResourceObj {
61 public:
62 // Constructor
63 ScopeDesc(const CompiledMethod* code, int decode_offset, int obj_decode_offset, bool reexecute, bool rethrow_exception, bool return_oop, bool return_vt);
64
65 // Calls above, giving default value of "serialized_null" to the
66 // "obj_decode_offset" argument. (We don't use a default argument to
67 // avoid a .hpp-.hpp dependency.)
68 ScopeDesc(const CompiledMethod* code, int decode_offset, bool reexecute, bool rethrow_exception, bool return_oop, bool return_vt);
69
70 // Direct access to scope
71 ScopeDesc* at_offset(int decode_offset) { return new ScopeDesc(this, decode_offset); }
72
73 // JVM state
74 Method* method() const { return _method; }
75 int bci() const { return _bci; }
76 bool should_reexecute() const { return _reexecute; }
77 bool rethrow_exception() const { return _rethrow_exception; }
78 bool return_oop() const { return _return_oop; }
79 bool return_vt() const { return _return_vt; }
80
81 GrowableArray<ScopeValue*>* locals();
82 GrowableArray<ScopeValue*>* expressions();
83 GrowableArray<MonitorValue*>* monitors();
84 GrowableArray<ScopeValue*>* objects();
85
86 // Stack walking, returns NULL if this is the outer most scope.
87 ScopeDesc* sender() const;
88
89 // Returns where the scope was decoded
90 int decode_offset() const { return _decode_offset; }
91
92 int sender_decode_offset() const { return _sender_decode_offset; }
93
94 // Tells whether sender() returns NULL
95 bool is_top() const;
96
97 private:
98 void initialize(const ScopeDesc* parent, int decode_offset);
99 // Alternative constructors
100 ScopeDesc(const ScopeDesc* parent);
101 ScopeDesc(const ScopeDesc* parent, int decode_offset);
102
103 // JVM state
104 Method* _method;
105 int _bci;
106 bool _reexecute;
107 bool _rethrow_exception;
108 bool _return_oop;
109 bool _return_vt;
110
111 // Decoding offsets
112 int _decode_offset;
113 int _sender_decode_offset;
114 int _locals_decode_offset;
115 int _expressions_decode_offset;
116 int _monitors_decode_offset;
117
118 // Object pool
119 GrowableArray<ScopeValue*>* _objects;
120
121 // Nmethod information
122 const CompiledMethod* _code;
123
124 // Decoding operations
125 void decode_body();
126 GrowableArray<ScopeValue*>* decode_scope_values(int decode_offset);
127 GrowableArray<MonitorValue*>* decode_monitor_values(int decode_offset);
128 GrowableArray<ScopeValue*>* decode_object_values(int decode_offset);
129
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