sharkFrame_zero.hpp revision 1472:c18cbe5936b8 
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25
26// |  ...               |
27// +--------------------+  ------------------
28// | stack slot n-1     |       low addresses
29// |  ...               |
30// | stack slot 0       |
31// | monitor m-1        |
32// |  ...               |
33// | monitor 0          |
34// | oop_tmp            |
35// | method             |
36// | unextended_sp      |
37// | pc                 |
38// | frame_type         |
39// | next_frame         |      high addresses
40// +--------------------+  ------------------
41// |  ...               |
42
43class SharkFrame : public ZeroFrame {
44  friend class SharkStack;
45
46 private:
47  SharkFrame() : ZeroFrame() {
48    ShouldNotCallThis();
49  }
50
51 protected:
52  enum Layout {
53    pc_off = jf_header_words,
54    unextended_sp_off,
55    method_off,
56    oop_tmp_off,
57    header_words
58  };
59
60 public:
61  address pc() const {
62    return (address) value_of_word(pc_off);
63  }
64
65  intptr_t* unextended_sp() const {
66    return (intptr_t *) value_of_word(unextended_sp_off);
67  }
68
69  methodOop method() const {
70    return (methodOop) value_of_word(method_off);
71  }
72
73 public:
74  void identify_word(int   frame_index,
75                     int   offset,
76                     char* fieldbuf,
77                     char* valuebuf,
78                     int   buflen) const;
79};
80