mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-08 19:06:39 +00:00
77afbdce53
excluding visibility bits. Generic STO handling at the Target level. The st_other field of the ELF symbol table is one byte in size. The first 2 bytes are used for generic visibility and are currently handled by llvm. The other six bits are processor specific and need to be set at the target level. A couple of notes: The new static methods for accessing and setting the "other" flags in include/llvm/MC/MCELF.h match the style guide and not the other methods in the file. I don't like the inconsistency, but feel I should follow the prescribed lowerUpper() convention. STO_ value definitions are not specified in gnu land as consistently as the STT_ and STB_ fields. Probably because the latter were defined in a standards doc and the former defined partially in code. I have stuck with the full byte definition of the flags. Contributer: Zoran Jovanovic git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175561 91177308-0d34-0410-b5e6-96231b3b80d8
126 lines
4.0 KiB
C++
126 lines
4.0 KiB
C++
//===- MCELFStreamer.h - MCStreamer ELF Object File Interface ---*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MC_MCELFSTREAMER_H
|
|
#define LLVM_MC_MCELFSTREAMER_H
|
|
|
|
#include "llvm/ADT/SmallPtrSet.h"
|
|
#include "llvm/MC/MCDirectives.h"
|
|
#include "llvm/MC/MCObjectStreamer.h"
|
|
#include "llvm/MC/SectionKind.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
class MCAsmBackend;
|
|
class MCAssembler;
|
|
class MCCodeEmitter;
|
|
class MCExpr;
|
|
class MCInst;
|
|
class MCSymbol;
|
|
class MCSymbolData;
|
|
class raw_ostream;
|
|
|
|
class MCELFStreamer : public MCObjectStreamer {
|
|
protected:
|
|
MCELFStreamer(StreamerKind Kind, MCContext &Context, MCAsmBackend &TAB,
|
|
raw_ostream &OS, MCCodeEmitter *Emitter)
|
|
: MCObjectStreamer(Kind, Context, TAB, OS, Emitter) {}
|
|
|
|
public:
|
|
MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
|
|
MCCodeEmitter *Emitter)
|
|
: MCObjectStreamer(SK_ELFStreamer, Context, TAB, OS, Emitter) {}
|
|
|
|
MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
|
|
MCCodeEmitter *Emitter, MCAssembler *Assembler)
|
|
: MCObjectStreamer(SK_ELFStreamer, Context, TAB, OS, Emitter,
|
|
Assembler) {}
|
|
|
|
virtual ~MCELFStreamer();
|
|
|
|
/// @name MCStreamer Interface
|
|
/// @{
|
|
|
|
virtual void InitSections();
|
|
virtual void InitToTextSection();
|
|
virtual void ChangeSection(const MCSection *Section);
|
|
virtual void EmitLabel(MCSymbol *Symbol);
|
|
virtual void EmitDebugLabel(MCSymbol *Symbol);
|
|
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
|
|
virtual void EmitThumbFunc(MCSymbol *Func);
|
|
virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
|
|
virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
|
|
virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
|
|
virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
|
|
unsigned ByteAlignment);
|
|
virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
|
|
virtual void EmitCOFFSymbolStorageClass(int StorageClass);
|
|
virtual void EmitCOFFSymbolType(int Type);
|
|
virtual void EndCOFFSymbolDef();
|
|
|
|
virtual MCSymbolData &getOrCreateSymbolData(MCSymbol *Symbol);
|
|
|
|
virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
|
|
|
|
virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
|
|
unsigned ByteAlignment);
|
|
|
|
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
|
|
uint64_t Size = 0, unsigned ByteAlignment = 0);
|
|
virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
|
|
uint64_t Size, unsigned ByteAlignment = 0);
|
|
virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
|
|
unsigned AddrSpace);
|
|
|
|
virtual void EmitFileDirective(StringRef Filename);
|
|
|
|
virtual void EmitTCEntry(const MCSymbol &S);
|
|
|
|
virtual void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned);
|
|
|
|
virtual void FinishImpl();
|
|
/// @}
|
|
|
|
static bool classof(const MCStreamer *S) {
|
|
return S->getKind() == SK_ELFStreamer || S->getKind() == SK_ARMELFStreamer;
|
|
}
|
|
|
|
private:
|
|
virtual void EmitInstToFragment(const MCInst &Inst);
|
|
virtual void EmitInstToData(const MCInst &Inst);
|
|
|
|
virtual void EmitBundleAlignMode(unsigned AlignPow2);
|
|
virtual void EmitBundleLock(bool AlignToEnd);
|
|
virtual void EmitBundleUnlock();
|
|
|
|
void fixSymbolsInTLSFixups(const MCExpr *expr);
|
|
|
|
struct LocalCommon {
|
|
MCSymbolData *SD;
|
|
uint64_t Size;
|
|
unsigned ByteAlignment;
|
|
};
|
|
|
|
std::vector<LocalCommon> LocalCommons;
|
|
|
|
SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
|
|
|
|
|
|
void SetSection(StringRef Section, unsigned Type, unsigned Flags,
|
|
SectionKind Kind);
|
|
void SetSectionData();
|
|
void SetSectionText();
|
|
void SetSectionBss();
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|