mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
2292b1bf92
Make MCSectionELF::AssociatedSection be a link to a symbol, because that's how it works in the assembly, and use it in the asm printer. llvm-svn: 297769
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
//===- MCSectionELF.h - ELF 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 MCSectionELF class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MC_MCSECTIONELF_H
|
|
#define LLVM_MC_MCSECTIONELF_H
|
|
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/MC/MCSection.h"
|
|
#include "llvm/MC/MCSymbolELF.h"
|
|
#include "llvm/MC/SectionKind.h"
|
|
|
|
namespace llvm {
|
|
|
|
class MCSymbol;
|
|
|
|
/// This represents a section on linux, lots of unix variants and some bare
|
|
/// metal systems.
|
|
class MCSectionELF final : public MCSection {
|
|
/// This is the name of the section. The referenced memory is owned by
|
|
/// TargetLoweringObjectFileELF's ELFUniqueMap.
|
|
StringRef SectionName;
|
|
|
|
/// This is the sh_type field of a section, drawn from the enums below.
|
|
unsigned Type;
|
|
|
|
/// This is the sh_flags field of a section, drawn from the enums below.
|
|
unsigned Flags;
|
|
|
|
unsigned UniqueID;
|
|
|
|
/// The size of each entry in this section. This size only makes sense for
|
|
/// sections that contain fixed-sized entries. If a section does not contain
|
|
/// fixed-sized entries 'EntrySize' will be 0.
|
|
unsigned EntrySize;
|
|
|
|
const MCSymbolELF *Group;
|
|
|
|
/// sh_info for SHF_LINK_ORDER (can be null).
|
|
const MCSymbol *AssociatedSymbol;
|
|
|
|
private:
|
|
friend class MCContext;
|
|
|
|
MCSectionELF(StringRef Section, unsigned type, unsigned flags, SectionKind K,
|
|
unsigned entrySize, const MCSymbolELF *group, unsigned UniqueID,
|
|
MCSymbol *Begin, const MCSymbolELF *AssociatedSymbol)
|
|
: MCSection(SV_ELF, K, Begin), SectionName(Section), Type(type),
|
|
Flags(flags), UniqueID(UniqueID), EntrySize(entrySize), Group(group),
|
|
AssociatedSymbol(AssociatedSymbol) {
|
|
if (Group)
|
|
Group->setIsSignature();
|
|
}
|
|
|
|
void setSectionName(StringRef Name) { SectionName = Name; }
|
|
|
|
public:
|
|
~MCSectionELF();
|
|
|
|
/// Decides whether a '.section' directive should be printed before the
|
|
/// section name
|
|
bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
|
|
|
|
StringRef getSectionName() const { return SectionName; }
|
|
unsigned getType() const { return Type; }
|
|
unsigned getFlags() const { return Flags; }
|
|
unsigned getEntrySize() const { return EntrySize; }
|
|
void setFlags(unsigned F) { Flags = F; }
|
|
const MCSymbolELF *getGroup() const { return Group; }
|
|
|
|
void PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
|
|
raw_ostream &OS,
|
|
const MCExpr *Subsection) const override;
|
|
bool UseCodeAlign() const override;
|
|
bool isVirtualSection() const override;
|
|
|
|
bool isUnique() const { return UniqueID != ~0U; }
|
|
unsigned getUniqueID() const { return UniqueID; }
|
|
|
|
const MCSection *getAssociatedSection() const { return &AssociatedSymbol->getSection(); }
|
|
const MCSymbol *getAssociatedSymbol() const { return AssociatedSymbol; }
|
|
|
|
static bool classof(const MCSection *S) {
|
|
return S->getVariant() == SV_ELF;
|
|
}
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_MC_MCSECTIONELF_H
|