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