mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-02 22:04:55 +00:00
60cb528246
it comes back, it will be largely a rewrite, so keeping the old codebase in tree isn't helping anyone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116190 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
//===- MCSection.h - Machine Code Sections ----------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares the MCSection class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MC_MCSECTION_H
|
|
#define LLVM_MC_MCSECTION_H
|
|
|
|
#include <string>
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/MC/SectionKind.h"
|
|
#include "llvm/Support/Casting.h"
|
|
|
|
namespace llvm {
|
|
class MCContext;
|
|
class MCAsmInfo;
|
|
class raw_ostream;
|
|
|
|
/// MCSection - Instances of this class represent a uniqued identifier for a
|
|
/// section in the current translation unit. The MCContext class uniques and
|
|
/// creates these.
|
|
class MCSection {
|
|
public:
|
|
enum SectionVariant {
|
|
SV_COFF = 0,
|
|
SV_ELF,
|
|
SV_MachO
|
|
};
|
|
|
|
private:
|
|
MCSection(const MCSection&); // DO NOT IMPLEMENT
|
|
void operator=(const MCSection&); // DO NOT IMPLEMENT
|
|
protected:
|
|
MCSection(SectionVariant V, SectionKind K) : Variant(V), Kind(K) {}
|
|
SectionVariant Variant;
|
|
SectionKind Kind;
|
|
public:
|
|
virtual ~MCSection();
|
|
|
|
SectionKind getKind() const { return Kind; }
|
|
|
|
SectionVariant getVariant() const { return Variant; }
|
|
|
|
virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
|
|
raw_ostream &OS) const = 0;
|
|
|
|
/// isBaseAddressKnownZero - Return true if we know that this section will
|
|
/// get a base address of zero. In cases where we know that this is true we
|
|
/// can emit section offsets as direct references to avoid a subtraction
|
|
/// from the base of the section, saving a relocation.
|
|
virtual bool isBaseAddressKnownZero() const {
|
|
return false;
|
|
}
|
|
|
|
// UseCodeAlign - Return true if a .align directive should use
|
|
// "optimized nops" to fill instead of 0s.
|
|
virtual bool UseCodeAlign() const = 0;
|
|
|
|
static bool classof(const MCSection *) { return true; }
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|