55 int bci() { return _bci; }
56 };
57
58 // ScopeDescs contain the information that makes source-level debugging of
59 // nmethods possible; each scopeDesc describes a method activation
60
61 class ScopeDesc : public ResourceObj {
62 public:
63 // Constructor
64 ScopeDesc(const CompiledMethod* code, PcDesc* pd, bool ignore_objects = false);
65
66 // Direct access to scope
67 ScopeDesc* at_offset(int decode_offset) { return new ScopeDesc(this, decode_offset); }
68
69 // JVM state
70 Method* method() const { return _method; }
71 int bci() const { return _bci; }
72 bool should_reexecute() const { return _reexecute; }
73 bool rethrow_exception() const { return _rethrow_exception; }
74 bool return_oop() const { return _return_oop; }
75 // Returns true if one or more NoEscape or ArgEscape objects exist in
76 // any of the scopes at compiled pc.
77 bool has_ea_local_in_scope() const { return _has_ea_local_in_scope; }
78 bool arg_escape() const { return _arg_escape; }
79
80 GrowableArray<ScopeValue*>* locals();
81 GrowableArray<ScopeValue*>* expressions();
82 GrowableArray<MonitorValue*>* monitors();
83 GrowableArray<ScopeValue*>* objects();
84
85 // Stack walking, returns nullptr 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 nullptr
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 bool _has_ea_local_in_scope; // One or more NoEscape or ArgEscape objects exist in
109 // any of the scopes at compiled pc.
110 bool _arg_escape; // Compiled Java call in youngest scope passes ArgEscape
111
112 // Decoding offsets
113 int _decode_offset;
114 int _sender_decode_offset;
115 int _locals_decode_offset;
116 int _expressions_decode_offset;
117 int _monitors_decode_offset;
118
119 // Object pool
120 GrowableArray<ScopeValue*>* _objects;
121
122 // Nmethod information
123 const CompiledMethod* _code;
124
125 // Decoding operations
126 void decode_body();
127 GrowableArray<ScopeValue*>* decode_scope_values(int decode_offset);
128 GrowableArray<MonitorValue*>* decode_monitor_values(int decode_offset);
129 GrowableArray<ScopeValue*>* decode_object_values(int decode_offset);
130
131 DebugInfoReadStream* stream_at(int decode_offset) const;
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55 int bci() { return _bci; }
56 };
57
58 // ScopeDescs contain the information that makes source-level debugging of
59 // nmethods possible; each scopeDesc describes a method activation
60
61 class ScopeDesc : public ResourceObj {
62 public:
63 // Constructor
64 ScopeDesc(const CompiledMethod* code, PcDesc* pd, bool ignore_objects = false);
65
66 // Direct access to scope
67 ScopeDesc* at_offset(int decode_offset) { return new ScopeDesc(this, decode_offset); }
68
69 // JVM state
70 Method* method() const { return _method; }
71 int bci() const { return _bci; }
72 bool should_reexecute() const { return _reexecute; }
73 bool rethrow_exception() const { return _rethrow_exception; }
74 bool return_oop() const { return _return_oop; }
75 bool return_scalarized() const { return _return_scalarized; }
76 // Returns true if one or more NoEscape or ArgEscape objects exist in
77 // any of the scopes at compiled pc.
78 bool has_ea_local_in_scope() const { return _has_ea_local_in_scope; }
79 bool arg_escape() const { return _arg_escape; }
80
81 GrowableArray<ScopeValue*>* locals();
82 GrowableArray<ScopeValue*>* expressions();
83 GrowableArray<MonitorValue*>* monitors();
84 GrowableArray<ScopeValue*>* objects();
85
86 // Stack walking, returns nullptr 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 nullptr
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_scalarized;
110 bool _has_ea_local_in_scope; // One or more NoEscape or ArgEscape objects exist in
111 // any of the scopes at compiled pc.
112 bool _arg_escape; // Compiled Java call in youngest scope passes ArgEscape
113 // Decoding offsets
114 int _decode_offset;
115 int _sender_decode_offset;
116 int _locals_decode_offset;
117 int _expressions_decode_offset;
118 int _monitors_decode_offset;
119
120 // Object pool
121 GrowableArray<ScopeValue*>* _objects;
122
123 // Nmethod information
124 const CompiledMethod* _code;
125
126 // Decoding operations
127 void decode_body();
128 GrowableArray<ScopeValue*>* decode_scope_values(int decode_offset);
129 GrowableArray<MonitorValue*>* decode_monitor_values(int decode_offset);
130 GrowableArray<ScopeValue*>* decode_object_values(int decode_offset);
131
132 DebugInfoReadStream* stream_at(int decode_offset) const;
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