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 // JVM state
71 Method* method() const { return _method; }
72 int bci() const { return _bci; }
73 bool should_reexecute() const { return _reexecute; }
74 bool rethrow_exception() const { return _rethrow_exception; }
75 bool return_oop() const { return _return_oop; }
76
77 GrowableArray<ScopeValue*>* locals();
78 GrowableArray<ScopeValue*>* expressions();
79 GrowableArray<MonitorValue*>* monitors();
80 GrowableArray<ScopeValue*>* objects();
81
82 // Stack walking, returns NULL if this is the outer most scope.
83 ScopeDesc* sender() const;
84
85 // Returns where the scope was decoded
86 int decode_offset() const { return _decode_offset; }
87
88 // Tells whether sender() returns NULL
89 bool is_top() const;
90
91 private:
92 // Alternative constructor
93 ScopeDesc(const ScopeDesc* parent);
94
95 // JVM state
96 Method* _method;
97 int _bci;
98 bool _reexecute;
99 bool _rethrow_exception;
100 bool _return_oop;
101
102 // Decoding offsets
103 int _decode_offset;
104 int _sender_decode_offset;
105 int _locals_decode_offset;
106 int _expressions_decode_offset;
107 int _monitors_decode_offset;
108
109 // Object pool
110 GrowableArray<ScopeValue*>* _objects;
111
112 // Nmethod information
113 const CompiledMethod* _code;
114
115 // Decoding operations
116 void decode_body();
117 GrowableArray<ScopeValue*>* decode_scope_values(int decode_offset);
118 GrowableArray<MonitorValue*>* decode_monitor_values(int decode_offset);
119 GrowableArray<ScopeValue*>* decode_object_values(int decode_offset);
120
|
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 // JVM state
71 Method* method() const { return _method; }
72 int bci() const { return _bci; }
73 bool should_reexecute() const { return _reexecute; }
74 bool rethrow_exception() const { return _rethrow_exception; }
75 bool return_oop() const { return _return_oop; }
76 bool return_vt() const { return _return_vt; }
77
78 GrowableArray<ScopeValue*>* locals();
79 GrowableArray<ScopeValue*>* expressions();
80 GrowableArray<MonitorValue*>* monitors();
81 GrowableArray<ScopeValue*>* objects();
82
83 // Stack walking, returns NULL if this is the outer most scope.
84 ScopeDesc* sender() const;
85
86 // Returns where the scope was decoded
87 int decode_offset() const { return _decode_offset; }
88
89 // Tells whether sender() returns NULL
90 bool is_top() const;
91
92 private:
93 // Alternative constructor
94 ScopeDesc(const ScopeDesc* parent);
95
96 // JVM state
97 Method* _method;
98 int _bci;
99 bool _reexecute;
100 bool _rethrow_exception;
101 bool _return_oop;
102 bool _return_vt;
103
104 // Decoding offsets
105 int _decode_offset;
106 int _sender_decode_offset;
107 int _locals_decode_offset;
108 int _expressions_decode_offset;
109 int _monitors_decode_offset;
110
111 // Object pool
112 GrowableArray<ScopeValue*>* _objects;
113
114 // Nmethod information
115 const CompiledMethod* _code;
116
117 // Decoding operations
118 void decode_body();
119 GrowableArray<ScopeValue*>* decode_scope_values(int decode_offset);
120 GrowableArray<MonitorValue*>* decode_monitor_values(int decode_offset);
121 GrowableArray<ScopeValue*>* decode_object_values(int decode_offset);
122
|