| 1 | //===-- HistoryUnwind.h -----------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_HISTORYUNWIND_H |
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| 10 | #define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_HISTORYUNWIND_H |
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| 11 | |
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| 12 | #include <vector> |
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| 13 | |
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| 14 | #include "lldb/Target/Unwind.h" |
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| 15 | #include "lldb/lldb-private.h" |
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| 16 | |
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| 17 | namespace lldb_private { |
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| 18 | |
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| 19 | class HistoryUnwind : public lldb_private::Unwind { |
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| 20 | public: |
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| 21 | HistoryUnwind(Thread &thread, std::vector<lldb::addr_t> pcs, |
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| 22 | bool pcs_are_call_addresses = false); |
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| 23 | |
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| 24 | ~HistoryUnwind() override; |
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| 25 | |
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| 26 | protected: |
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| 27 | void DoClear() override; |
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| 28 | |
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| 29 | lldb::RegisterContextSP |
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| 30 | DoCreateRegisterContextForFrame(StackFrame *frame) override; |
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| 31 | |
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| 32 | bool DoGetFrameInfoAtIndex(uint32_t frame_idx, lldb::addr_t &cfa, |
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| 33 | lldb::addr_t &pc, |
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| 34 | bool &behaves_like_zeroth_frame) override; |
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| 35 | uint32_t DoGetFrameCount() override; |
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| 36 | |
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| 37 | private: |
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| 38 | std::vector<lldb::addr_t> m_pcs; |
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| 39 | /// This boolean indicates that the PCs in the non-0 frames are call |
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| 40 | /// addresses and not return addresses. |
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| 41 | bool m_pcs_are_call_addresses; |
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| 42 | }; |
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| 43 | |
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| 44 | } // namespace lldb_private |
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| 45 | |
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| 46 | #endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_HISTORYUNWIND_H |
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| 47 | |
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