forked from OSchip/llvm-project
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
//===-- UnwindMacOSXFrameBackchain.h ----------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef lldb_UnwindMacOSXFrameBackchain_h_
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#define lldb_UnwindMacOSXFrameBackchain_h_
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// C Includes
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// C++ Includes
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#include <vector>
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Target/Unwind.h"
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#include "lldb/lldb-private.h"
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class UnwindMacOSXFrameBackchain : public lldb_private::Unwind {
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public:
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UnwindMacOSXFrameBackchain(lldb_private::Thread &thread);
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~UnwindMacOSXFrameBackchain() override = default;
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protected:
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void DoClear() override { m_cursors.clear(); }
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uint32_t DoGetFrameCount() override;
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bool DoGetFrameInfoAtIndex(uint32_t frame_idx, lldb::addr_t &cfa,
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lldb::addr_t &pc) override;
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lldb::RegisterContextSP
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DoCreateRegisterContextForFrame(lldb_private::StackFrame *frame) override;
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friend class RegisterContextMacOSXFrameBackchain;
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struct Cursor {
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lldb::addr_t pc; // Program counter
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lldb::addr_t fp; // Frame pointer for us with backchain
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};
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private:
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std::vector<Cursor> m_cursors;
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size_t GetStackFrameData_i386(const lldb_private::ExecutionContext &exe_ctx);
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size_t
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GetStackFrameData_x86_64(const lldb_private::ExecutionContext &exe_ctx);
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//------------------------------------------------------------------
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// For UnwindMacOSXFrameBackchain only
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//------------------------------------------------------------------
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DISALLOW_COPY_AND_ASSIGN(UnwindMacOSXFrameBackchain);
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};
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#endif // lldb_UnwindMacOSXFrameBackchain_h_
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