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Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
[FreeBSD/FreeBSD.git] / contrib / llvm / tools / 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) override;
33   uint32_t DoGetFrameCount() override;
34
35 private:
36   std::vector<lldb::addr_t> m_pcs;
37 };
38
39 } // namespace lldb_private
40
41 #endif // liblldb_HistoryUnwind_h_