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_
43