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/thirdparty/breakpad/processor/stackwalker_ppc.h

http://github.com/tomahawk-player/tomahawk
C++ Header | 79 lines | 22 code | 14 blank | 43 comment | 0 complexity | 0cab47ce919c8aa65b6f25a09191211f MD5 | raw file
 1// Copyright (c) 2010 Google Inc.
 2// All rights reserved.
 3//
 4// Redistribution and use in source and binary forms, with or without
 5// modification, are permitted provided that the following conditions are
 6// met:
 7//
 8//     * Redistributions of source code must retain the above copyright
 9// notice, this list of conditions and the following disclaimer.
10//     * Redistributions in binary form must reproduce the above
11// copyright notice, this list of conditions and the following disclaimer
12// in the documentation and/or other materials provided with the
13// distribution.
14//     * Neither the name of Google Inc. nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30// stackwalker_ppc.h: ppc-specific stackwalker.
31//
32// Provides stack frames given ppc register context and a memory region
33// corresponding to a ppc stack.
34//
35// Author: Mark Mentovai
36
37
38#ifndef PROCESSOR_STACKWALKER_PPC_H__
39#define PROCESSOR_STACKWALKER_PPC_H__
40
41
42#include "google_breakpad/common/breakpad_types.h"
43#include "google_breakpad/common/minidump_format.h"
44#include "google_breakpad/processor/stackwalker.h"
45
46namespace google_breakpad {
47
48class CodeModules;
49
50class StackwalkerPPC : public Stackwalker {
51 public:
52  // context is a ppc context object that gives access to ppc-specific
53  // register state corresponding to the innermost called frame to be
54  // included in the stack.  The other arguments are passed directly through
55  // to the base Stackwalker constructor.
56  StackwalkerPPC(const SystemInfo *system_info,
57                 const MDRawContextPPC *context,
58                 MemoryRegion *memory,
59                 const CodeModules *modules,
60                 SymbolSupplier *supplier,
61                 SourceLineResolverInterface *resolver);
62
63 private:
64  // Implementation of Stackwalker, using ppc context (stack pointer in %r1,
65  // saved program counter in %srr0) and stack conventions (saved stack
66  // pointer at 0(%r1), return address at 8(0(%r1)).
67  virtual StackFrame* GetContextFrame();
68  virtual StackFrame* GetCallerFrame(const CallStack *stack);
69
70  // Stores the CPU context corresponding to the innermost stack frame to
71  // be returned by GetContextFrame.
72  const MDRawContextPPC *context_;
73};
74
75
76}  // namespace google_breakpad
77
78
79#endif  // PROCESSOR_STACKWALKER_PPC_H__