contrib/llvm-project/lldb/source/Plugins/Process/Utility/HistoryUnwind.h

   1 //===-- HistoryUnwind.h -----------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef liblldb_HistoryUnwind_h_
  10 #define liblldb_HistoryUnwind_h_
  11
  12 #include <vector>
  13
  14 #include "lldb/Target/Unwind.h"
  15 #include "lldb/lldb-private.h"
  16
  17 namespace lldb_private {
  18
  19 class HistoryUnwind : public lldb_private::Unwind {
  20 public:
  21   HistoryUnwind(Thread &thread, std::vector<lldb::addr_t> pcs);
  22
  23   ~HistoryUnwind() override;
  24
  25 protected:
  26   void DoClear() override;
  27
  28   lldb::RegisterContextSP
  29   DoCreateRegisterContextForFrame(StackFrame *frame) override;
  30
  31   bool DoGetFrameInfoAtIndex(uint32_t frame_idx, lldb::addr_t &cfa,
  32                              lldb::addr_t &pc,
  33                              bool &behaves_like_zeroth_frame) override;
  34   uint32_t DoGetFrameCount() override;
  35
  36 private:
  37   std::vector<lldb::addr_t> m_pcs;
  38 };
  39
  40 } // namespace lldb_private
  41
  42 #endif // liblldb_HistoryUnwind_h_