96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
//===-- DwarfException.h - Dwarf Exception Framework -----------*- 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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//
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// This file contains support for writing dwarf exception info into asm files.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFEXCEPTION_H
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#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFEXCEPTION_H
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#include "EHStreamer.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/MC/MCDwarf.h"
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namespace llvm {
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class MachineFunction;
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class ARMTargetStreamer;
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class LLVM_LIBRARY_VISIBILITY DwarfCFIExceptionBase : public EHStreamer {
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protected:
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DwarfCFIExceptionBase(AsmPrinter *A);
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/// Per-function flag to indicate if frame CFI info should be emitted.
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bool shouldEmitCFI;
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/// Per-module flag to indicate if .cfi_section has beeen emitted.
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bool hasEmittedCFISections;
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void markFunctionEnd() override;
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void endFragment() override;
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};
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class LLVM_LIBRARY_VISIBILITY DwarfCFIException : public DwarfCFIExceptionBase {
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/// Per-function flag to indicate if .cfi_personality should be emitted.
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bool shouldEmitPersonality;
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/// Per-function flag to indicate if .cfi_personality must be emitted.
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bool forceEmitPersonality;
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/// Per-function flag to indicate if .cfi_lsda should be emitted.
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bool shouldEmitLSDA;
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/// Per-function flag to indicate if frame moves info should be emitted.
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bool shouldEmitMoves;
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public:
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//===--------------------------------------------------------------------===//
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// Main entry points.
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//
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DwarfCFIException(AsmPrinter *A);
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~DwarfCFIException() override;
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/// Emit all exception information that should come after the content.
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void endModule() override;
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/// Gather pre-function exception information. Assumes being emitted
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/// immediately after the function entry point.
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void beginFunction(const MachineFunction *MF) override;
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/// Gather and emit post-function exception information.
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void endFunction(const MachineFunction *) override;
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void beginFragment(const MachineBasicBlock *MBB,
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ExceptionSymbolProvider ESP) override;
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};
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class LLVM_LIBRARY_VISIBILITY ARMException : public DwarfCFIExceptionBase {
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void emitTypeInfos(unsigned TTypeEncoding, MCSymbol *TTBaseLabel) override;
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ARMTargetStreamer &getTargetStreamer();
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public:
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//===--------------------------------------------------------------------===//
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// Main entry points.
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//
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ARMException(AsmPrinter *A);
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~ARMException() override;
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/// Emit all exception information that should come after the content.
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void endModule() override {}
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/// Gather pre-function exception information. Assumes being emitted
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/// immediately after the function entry point.
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void beginFunction(const MachineFunction *MF) override;
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/// Gather and emit post-function exception information.
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void endFunction(const MachineFunction *) override;
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};
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} // End of namespace llvm
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#endif
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