b57e4a1bc6
pure virtual base class and made StackFrame a subclass of that. As I started to build on top of that arrangement today, I found that it wasn't working out like I intended. Instead I'll try sticking with the single StackFrame class -- there's too much code duplication to make a more complicated class hierarchy sensible I think. llvm-svn: 193983
75 lines
1.9 KiB
C++
75 lines
1.9 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/lldb-private.h"
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#include "lldb/Target/Unwind.h"
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class UnwindMacOSXFrameBackchain : public lldb_private::Unwind
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{
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public:
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UnwindMacOSXFrameBackchain (lldb_private::Thread &thread);
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virtual
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~UnwindMacOSXFrameBackchain()
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{
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}
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protected:
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virtual void
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DoClear()
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{
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m_cursors.clear();
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}
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virtual uint32_t
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DoGetFrameCount();
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bool
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DoGetFrameInfoAtIndex (uint32_t frame_idx,
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lldb::addr_t& cfa,
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lldb::addr_t& pc);
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lldb::RegisterContextSP
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DoCreateRegisterContextForFrame (lldb_private::StackFrame *frame);
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friend class RegisterContextMacOSXFrameBackchain;
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struct Cursor
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{
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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
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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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