contrib/llvm/tools/lldb/source/Plugins/Process/Utility/HistoryUnwind.h

   1 //===-- HistoryUnwind.h -----------------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef liblldb_HistoryUnwind_h_
  11 #define liblldb_HistoryUnwind_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 #include <vector>
  16
  17 // Other libraries and framework includes
  18 // Project includes
  19 #include "lldb/lldb-private.h"
  20 #include "lldb/Host/Mutex.h"
  21 #include "lldb/Target/Unwind.h"
  22
  23 namespace lldb_private {
  24
  25 class HistoryUnwind : public lldb_private::Unwind
  26 {
  27 public:
  28     HistoryUnwind (Thread &thread, std::vector<lldb::addr_t> pcs, bool stop_id_is_valid);
  29
  30     ~HistoryUnwind() override;
  31
  32 protected:
  33     void
  34     DoClear() override;
  35
  36     lldb::RegisterContextSP
  37     DoCreateRegisterContextForFrame(StackFrame *frame) override;
  38
  39     bool
  40     DoGetFrameInfoAtIndex(uint32_t frame_idx,
  41                           lldb::addr_t& cfa,
  42                           lldb::addr_t& pc) override;
  43     uint32_t
  44     DoGetFrameCount() override;
  45
  46 private:
  47
  48     std::vector<lldb::addr_t>   m_pcs;
  49     bool                        m_stop_id_is_valid;
  50 };
  51
  52 } // namespace lldb_private
  53
  54 #endif // liblldb_HistoryUnwind_h_