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28  
29  // stackwalker_sparc.h: sparc-specific stackwalker.
30  //
31  // Provides stack frames given sparc register context and a memory region
32  // corresponding to an sparc stack.
33  //
34  // Author: Michael Shang
35  
36  
37  #ifndef PROCESSOR_STACKWALKER_SPARC_H__
38  #define PROCESSOR_STACKWALKER_SPARC_H__
39  
40  
41  #include "google_breakpad/common/breakpad_types.h"
42  #include "google_breakpad/common/minidump_format.h"
43  #include "google_breakpad/processor/stackwalker.h"
44  
45  namespace google_breakpad {
46  
47  class CodeModules;
48  
49  class StackwalkerSPARC : public Stackwalker {
50   public:
51    // context is a sparc context object that gives access to sparc-specific
52    // register state corresponding to the innermost called frame to be
53    // included in the stack.  The other arguments are passed directly through
54    // to the base Stackwalker constructor.
55    StackwalkerSPARC(const SystemInfo* system_info,
56                     const MDRawContextSPARC* context,
57                     MemoryRegion* memory,
58                     const CodeModules* modules,
59                     StackFrameSymbolizer* frame_symbolizer);
60  
61   private:
62    // Implementation of Stackwalker, using sparc context (%fp, %sp, %pc) and
63    // stack conventions
64    virtual StackFrame* GetContextFrame();
65    virtual StackFrame* GetCallerFrame(const CallStack* stack,
66                                       bool stack_scan_allowed);
67  
68    // Stores the CPU context corresponding to the innermost stack frame to
69    // be returned by GetContextFrame.
70    const MDRawContextSPARC* context_;
71  };
72  
73  
74  }  // namespace google_breakpad
75  
76  
77  #endif  // PROCESSOR_STACKWALKER_SPARC_H__