55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file declares CFIFunctionFrameReceiver class.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DWARFCFICHECKER_DWARFCFIFUNCTIONFRAMERECEIVER_H
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#define LLVM_DWARFCFICHECKER_DWARFCFIFUNCTIONFRAMERECEIVER_H
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#include "llvm/ADT/ArrayRef.h"
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namespace llvm {
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class MCCFIInstruction;
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class MCContext;
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class MCInst;
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/// This abstract base class is an interface for receiving DWARF function frames
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/// Call Frame Information. `DWARFCFIFunctionFrameStreamer` channels the
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/// function frames information gathered from an `MCStreamer` using a pointer to
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/// an instance of this class for the whole program.
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class CFIFunctionFrameReceiver {
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public:
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CFIFunctionFrameReceiver(const CFIFunctionFrameReceiver &) = delete;
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CFIFunctionFrameReceiver &
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operator=(const CFIFunctionFrameReceiver &) = delete;
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virtual ~CFIFunctionFrameReceiver() = default;
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CFIFunctionFrameReceiver(MCContext &Context) : Context(Context) {}
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MCContext &getContext() const { return Context; }
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virtual void startFunctionFrame(bool IsEH,
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ArrayRef<MCCFIInstruction> Prologue) {}
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/// Instructions are processed in the program order.
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virtual void
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emitInstructionAndDirectives(const MCInst &Inst,
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ArrayRef<MCCFIInstruction> Directives) {}
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virtual void finishFunctionFrame() {}
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private:
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MCContext &Context;
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};
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} // namespace llvm
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#endif
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