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29
30// stackwalker_ppc64.h: ppc-specific stackwalker.
31//
32// Provides stack frames given ppc64 register context and a memory region
33// corresponding to a ppc64 stack.
34
35
36#ifndef PROCESSOR_STACKWALKER_PPC64_H__
37#define PROCESSOR_STACKWALKER_PPC64_H__
38
39
40#include "google_breakpad/common/breakpad_types.h"
41#include "google_breakpad/common/minidump_format.h"
42#include "google_breakpad/processor/stackwalker.h"
43
44namespace google_breakpad {
45
46class CodeModules;
47
48class StackwalkerPPC64 : public Stackwalker {
49 public:
50 // context is a ppc64 context object that gives access to ppc64-specific
51 // register state corresponding to the innermost called frame to be
52 // included in the stack. The other arguments are passed directly through
53 // to the base Stackwalker constructor.
54 StackwalkerPPC64(const SystemInfo* system_info,
55 const MDRawContextPPC64* context,
56 MemoryRegion* memory,
57 const CodeModules* modules,
58 StackFrameSymbolizer* frame_symbolizer);
59
60 private:
61 // Implementation of Stackwalker, using ppc64 context (stack pointer in %r1,
62 // saved program counter in %srr0) and stack conventions (saved stack
63 // pointer at 0(%r1), return address at 8(0(%r1)).
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 MDRawContextPPC64* context_;
71};
72
73
74} // namespace google_breakpad
75
76
77#endif // PROCESSOR_STACKWALKER_PPC64_H__
78