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https://github.com/c64scene-ar/llvm-6502.git
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903f4a2051
This allows the compiler/assembly programmer to switch back to a section. This in turn fixes the bootstrap failure on powerpc (tested on gcc110) without changing the ppc codegen at all. I will try to cleanup the various getELFSection overloads in a followup patch. Just using a default argument now would lead to ambiguities. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234099 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
//===- MCSection.h - Machine Code Sections ----------------------*- 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 declares the MCSection class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCSECTION_H
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#define LLVM_MC_MCSECTION_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/MC/SectionKind.h"
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#include "llvm/Support/Compiler.h"
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namespace llvm {
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class MCAsmInfo;
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class MCContext;
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class MCExpr;
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class MCSymbol;
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class raw_ostream;
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/// Instances of this class represent a uniqued identifier for a section in the
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/// current translation unit. The MCContext class uniques and creates these.
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class MCSection {
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public:
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enum SectionVariant { SV_COFF = 0, SV_ELF, SV_MachO };
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private:
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MCSection(const MCSection &) = delete;
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void operator=(const MCSection &) = delete;
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MCSymbol *Begin;
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mutable MCSymbol *End;
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protected:
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MCSection(SectionVariant V, SectionKind K, MCSymbol *Begin)
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: Begin(Begin), End(nullptr), Variant(V), Kind(K) {}
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SectionVariant Variant;
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SectionKind Kind;
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public:
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virtual ~MCSection();
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SectionKind getKind() const { return Kind; }
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SectionVariant getVariant() const { return Variant; }
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MCSymbol *getBeginSymbol() const { return Begin; }
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MCSymbol *getEndSymbol(MCContext &Ctx) const;
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bool hasEnded() const;
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virtual void PrintSwitchToSection(const MCAsmInfo &MAI, raw_ostream &OS,
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const MCExpr *Subsection) const = 0;
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/// Return true if a .align directive should use "optimized nops" to fill
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/// instead of 0s.
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virtual bool UseCodeAlign() const = 0;
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/// Check whether this section is "virtual", that is has no actual object
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/// file contents.
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virtual bool isVirtualSection() const = 0;
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};
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} // end namespace llvm
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#endif
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