mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-05 13:09:10 +00:00
0cb2a45cce
Maybe some targets should use this as well. Patch by Evgeniy Stepanov! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145781 91177308-0d34-0410-b5e6-96231b3b80d8
326 lines
12 KiB
C++
326 lines
12 KiB
C++
//===-- llvm/MC/MCObjectFileInfo.h - Object File Info -----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file describes common object file formats.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MC_MCBJECTFILEINFO_H
|
|
#define LLVM_MC_MCBJECTFILEINFO_H
|
|
|
|
#include "llvm/MC/MCCodeGenInfo.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/MC/SectionKind.h"
|
|
|
|
namespace llvm {
|
|
class MCContext;
|
|
class MCSection;
|
|
class Triple;
|
|
|
|
namespace Structors {
|
|
enum OutputOrder { None, PriorityOrder, ReversePriorityOrder };
|
|
}
|
|
|
|
class MCObjectFileInfo {
|
|
protected:
|
|
/// CommDirectiveSupportsAlignment - True if .comm supports alignment. This
|
|
/// is a hack for as long as we support 10.4 Tiger, whose assembler doesn't
|
|
/// support alignment on comm.
|
|
bool CommDirectiveSupportsAlignment;
|
|
|
|
/// SupportsWeakEmptyEHFrame - True if target object file supports a
|
|
/// weak_definition of constant 0 for an omitted EH frame.
|
|
bool SupportsWeakOmittedEHFrame;
|
|
|
|
/// IsFunctionEHFrameSymbolPrivate - This flag is set to true if the
|
|
/// "EH_frame" symbol for EH information should be an assembler temporary (aka
|
|
/// private linkage, aka an L or .L label) or false if it should be a normal
|
|
/// non-.globl label. This defaults to true.
|
|
bool IsFunctionEHFrameSymbolPrivate;
|
|
|
|
/// PersonalityEncoding, LSDAEncoding, FDEEncoding, TTypeEncoding - Some
|
|
/// encoding values for EH.
|
|
unsigned PersonalityEncoding;
|
|
unsigned LSDAEncoding;
|
|
unsigned FDEEncoding;
|
|
unsigned FDECFIEncoding;
|
|
unsigned TTypeEncoding;
|
|
|
|
/// TextSection - Section directive for standard text.
|
|
///
|
|
const MCSection *TextSection;
|
|
|
|
/// DataSection - Section directive for standard data.
|
|
///
|
|
const MCSection *DataSection;
|
|
|
|
/// BSSSection - Section that is default initialized to zero.
|
|
const MCSection *BSSSection;
|
|
|
|
/// ReadOnlySection - Section that is readonly and can contain arbitrary
|
|
/// initialized data. Targets are not required to have a readonly section.
|
|
/// If they don't, various bits of code will fall back to using the data
|
|
/// section for constants.
|
|
const MCSection *ReadOnlySection;
|
|
|
|
/// StaticCtorSection - This section contains the static constructor pointer
|
|
/// list.
|
|
const MCSection *StaticCtorSection;
|
|
|
|
/// StaticDtorSection - This section contains the static destructor pointer
|
|
/// list.
|
|
const MCSection *StaticDtorSection;
|
|
|
|
/// LSDASection - If exception handling is supported by the target, this is
|
|
/// the section the Language Specific Data Area information is emitted to.
|
|
const MCSection *LSDASection;
|
|
|
|
/// CompactUnwindSection - If exception handling is supported by the target
|
|
/// and the target can support a compact representation of the CIE and FDE,
|
|
/// this is the section to emit them into.
|
|
const MCSection *CompactUnwindSection;
|
|
|
|
/// DwarfAccelNamesSection, DwarfAccelObjCSection
|
|
/// If we use the DWARF accelerated hash tables then we want toe emit these
|
|
/// sections.
|
|
const MCSection *DwarfAccelNamesSection;
|
|
const MCSection *DwarfAccelObjCSection;
|
|
const MCSection *DwarfAccelNamespaceSection;
|
|
const MCSection *DwarfAccelTypesSection;
|
|
|
|
// Dwarf sections for debug info. If a target supports debug info, these must
|
|
// be set.
|
|
const MCSection *DwarfAbbrevSection;
|
|
const MCSection *DwarfInfoSection;
|
|
const MCSection *DwarfLineSection;
|
|
const MCSection *DwarfFrameSection;
|
|
const MCSection *DwarfPubTypesSection;
|
|
const MCSection *DwarfDebugInlineSection;
|
|
const MCSection *DwarfStrSection;
|
|
const MCSection *DwarfLocSection;
|
|
const MCSection *DwarfARangesSection;
|
|
const MCSection *DwarfRangesSection;
|
|
const MCSection *DwarfMacroInfoSection;
|
|
|
|
// Extra TLS Variable Data section. If the target needs to put additional
|
|
// information for a TLS variable, it'll go here.
|
|
const MCSection *TLSExtraDataSection;
|
|
|
|
/// TLSDataSection - Section directive for Thread Local data.
|
|
/// ELF and MachO only.
|
|
const MCSection *TLSDataSection; // Defaults to ".tdata".
|
|
|
|
/// TLSBSSSection - Section directive for Thread Local uninitialized data.
|
|
/// Null if this target doesn't support a BSS section.
|
|
/// ELF and MachO only.
|
|
const MCSection *TLSBSSSection; // Defaults to ".tbss".
|
|
|
|
|
|
/// EHFrameSection - EH frame section. It is initialized on demand so it
|
|
/// can be overwritten (with uniquing).
|
|
const MCSection *EHFrameSection;
|
|
|
|
/// ELF specific sections.
|
|
///
|
|
const MCSection *DataRelSection;
|
|
const MCSection *DataRelLocalSection;
|
|
const MCSection *DataRelROSection;
|
|
const MCSection *DataRelROLocalSection;
|
|
const MCSection *MergeableConst4Section;
|
|
const MCSection *MergeableConst8Section;
|
|
const MCSection *MergeableConst16Section;
|
|
|
|
/// MachO specific sections.
|
|
///
|
|
|
|
/// TLSTLVSection - Section for thread local structure information.
|
|
/// Contains the source code name of the variable, visibility and a pointer
|
|
/// to the initial value (.tdata or .tbss).
|
|
const MCSection *TLSTLVSection; // Defaults to ".tlv".
|
|
|
|
/// TLSThreadInitSection - Section for thread local data initialization
|
|
/// functions.
|
|
const MCSection *TLSThreadInitSection; // Defaults to ".thread_init_func".
|
|
|
|
const MCSection *CStringSection;
|
|
const MCSection *UStringSection;
|
|
const MCSection *TextCoalSection;
|
|
const MCSection *ConstTextCoalSection;
|
|
const MCSection *ConstDataSection;
|
|
const MCSection *DataCoalSection;
|
|
const MCSection *DataCommonSection;
|
|
const MCSection *DataBSSSection;
|
|
const MCSection *FourByteConstantSection;
|
|
const MCSection *EightByteConstantSection;
|
|
const MCSection *SixteenByteConstantSection;
|
|
const MCSection *LazySymbolPointerSection;
|
|
const MCSection *NonLazySymbolPointerSection;
|
|
|
|
/// COFF specific sections.
|
|
///
|
|
const MCSection *DrectveSection;
|
|
const MCSection *PDataSection;
|
|
const MCSection *XDataSection;
|
|
|
|
/// StructorOutputOrder - Whether the static ctor/dtor list should be output
|
|
/// in no particular order, in order of increasing priority or the reverse:
|
|
/// in order of decreasing priority (the default).
|
|
Structors::OutputOrder StructorOutputOrder; // Default is reverse order.
|
|
|
|
public:
|
|
void InitMCObjectFileInfo(StringRef TT, Reloc::Model RM, CodeModel::Model CM,
|
|
MCContext &ctx);
|
|
|
|
bool isFunctionEHFrameSymbolPrivate() const {
|
|
return IsFunctionEHFrameSymbolPrivate;
|
|
}
|
|
bool getSupportsWeakOmittedEHFrame() const {
|
|
return SupportsWeakOmittedEHFrame;
|
|
}
|
|
bool getCommDirectiveSupportsAlignment() const {
|
|
return CommDirectiveSupportsAlignment;
|
|
}
|
|
|
|
unsigned getPersonalityEncoding() const { return PersonalityEncoding; }
|
|
unsigned getLSDAEncoding() const { return LSDAEncoding; }
|
|
unsigned getFDEEncoding(bool CFI) const {
|
|
return CFI ? FDECFIEncoding : FDEEncoding;
|
|
}
|
|
unsigned getTTypeEncoding() const { return TTypeEncoding; }
|
|
|
|
const MCSection *getTextSection() const { return TextSection; }
|
|
const MCSection *getDataSection() const { return DataSection; }
|
|
const MCSection *getBSSSection() const { return BSSSection; }
|
|
const MCSection *getStaticCtorSection() const { return StaticCtorSection; }
|
|
const MCSection *getStaticDtorSection() const { return StaticDtorSection; }
|
|
const MCSection *getLSDASection() const { return LSDASection; }
|
|
const MCSection *getCompactUnwindSection() const{
|
|
return CompactUnwindSection;
|
|
}
|
|
const MCSection *getDwarfAccelNamesSection() const {
|
|
return DwarfAccelNamesSection;
|
|
}
|
|
const MCSection *getDwarfAccelObjCSection() const {
|
|
return DwarfAccelObjCSection;
|
|
}
|
|
const MCSection *getDwarfAccelNamespaceSection() const {
|
|
return DwarfAccelNamespaceSection;
|
|
}
|
|
const MCSection *getDwarfAccelTypesSection() const {
|
|
return DwarfAccelTypesSection;
|
|
}
|
|
const MCSection *getDwarfAbbrevSection() const { return DwarfAbbrevSection; }
|
|
const MCSection *getDwarfInfoSection() const { return DwarfInfoSection; }
|
|
const MCSection *getDwarfLineSection() const { return DwarfLineSection; }
|
|
const MCSection *getDwarfFrameSection() const { return DwarfFrameSection; }
|
|
const MCSection *getDwarfPubTypesSection() const{return DwarfPubTypesSection;}
|
|
const MCSection *getDwarfDebugInlineSection() const {
|
|
return DwarfDebugInlineSection;
|
|
}
|
|
const MCSection *getDwarfStrSection() const { return DwarfStrSection; }
|
|
const MCSection *getDwarfLocSection() const { return DwarfLocSection; }
|
|
const MCSection *getDwarfARangesSection() const { return DwarfARangesSection;}
|
|
const MCSection *getDwarfRangesSection() const { return DwarfRangesSection; }
|
|
const MCSection *getDwarfMacroInfoSection() const {
|
|
return DwarfMacroInfoSection;
|
|
}
|
|
const MCSection *getTLSExtraDataSection() const {
|
|
return TLSExtraDataSection;
|
|
}
|
|
const MCSection *getTLSDataSection() const { return TLSDataSection; }
|
|
const MCSection *getTLSBSSSection() const { return TLSBSSSection; }
|
|
|
|
/// ELF specific sections.
|
|
///
|
|
const MCSection *getDataRelSection() const { return DataRelSection; }
|
|
const MCSection *getDataRelLocalSection() const {
|
|
return DataRelLocalSection;
|
|
}
|
|
const MCSection *getDataRelROSection() const { return DataRelROSection; }
|
|
const MCSection *getDataRelROLocalSection() const {
|
|
return DataRelROLocalSection;
|
|
}
|
|
const MCSection *getMergeableConst4Section() const {
|
|
return MergeableConst4Section;
|
|
}
|
|
const MCSection *getMergeableConst8Section() const {
|
|
return MergeableConst8Section;
|
|
}
|
|
const MCSection *getMergeableConst16Section() const {
|
|
return MergeableConst16Section;
|
|
}
|
|
|
|
/// MachO specific sections.
|
|
///
|
|
const MCSection *getTLSTLVSection() const { return TLSTLVSection; }
|
|
const MCSection *getTLSThreadInitSection() const {
|
|
return TLSThreadInitSection;
|
|
}
|
|
const MCSection *getCStringSection() const { return CStringSection; }
|
|
const MCSection *getUStringSection() const { return UStringSection; }
|
|
const MCSection *getTextCoalSection() const { return TextCoalSection; }
|
|
const MCSection *getConstTextCoalSection() const {
|
|
return ConstTextCoalSection;
|
|
}
|
|
const MCSection *getConstDataSection() const { return ConstDataSection; }
|
|
const MCSection *getDataCoalSection() const { return DataCoalSection; }
|
|
const MCSection *getDataCommonSection() const { return DataCommonSection; }
|
|
const MCSection *getDataBSSSection() const { return DataBSSSection; }
|
|
const MCSection *getFourByteConstantSection() const {
|
|
return FourByteConstantSection;
|
|
}
|
|
const MCSection *getEightByteConstantSection() const {
|
|
return EightByteConstantSection;
|
|
}
|
|
const MCSection *getSixteenByteConstantSection() const {
|
|
return SixteenByteConstantSection;
|
|
}
|
|
const MCSection *getLazySymbolPointerSection() const {
|
|
return LazySymbolPointerSection;
|
|
}
|
|
const MCSection *getNonLazySymbolPointerSection() const {
|
|
return NonLazySymbolPointerSection;
|
|
}
|
|
|
|
/// COFF specific sections.
|
|
///
|
|
const MCSection *getDrectveSection() const { return DrectveSection; }
|
|
const MCSection *getPDataSection() const { return PDataSection; }
|
|
const MCSection *getXDataSection() const { return XDataSection; }
|
|
|
|
const MCSection *getEHFrameSection() {
|
|
if (!EHFrameSection)
|
|
InitEHFrameSection();
|
|
return EHFrameSection;
|
|
}
|
|
|
|
Structors::OutputOrder getStructorOutputOrder() const {
|
|
return StructorOutputOrder;
|
|
}
|
|
|
|
private:
|
|
enum Environment { IsMachO, IsELF, IsCOFF };
|
|
Environment Env;
|
|
Reloc::Model RelocM;
|
|
CodeModel::Model CMModel;
|
|
MCContext *Ctx;
|
|
|
|
void InitMachOMCObjectFileInfo(Triple T);
|
|
void InitELFMCObjectFileInfo(Triple T);
|
|
void InitCOFFMCObjectFileInfo(Triple T);
|
|
|
|
/// InitEHFrameSection - Initialize EHFrameSection on demand.
|
|
///
|
|
void InitEHFrameSection();
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|