diff options
Diffstat (limited to 'gnu/llvm/lib/Target/XCore/XCoreTargetObjectFile.cpp')
| -rw-r--r-- | gnu/llvm/lib/Target/XCore/XCoreTargetObjectFile.cpp | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/gnu/llvm/lib/Target/XCore/XCoreTargetObjectFile.cpp b/gnu/llvm/lib/Target/XCore/XCoreTargetObjectFile.cpp deleted file mode 100644 index c60a262e719..00000000000 --- a/gnu/llvm/lib/Target/XCore/XCoreTargetObjectFile.cpp +++ /dev/null @@ -1,156 +0,0 @@ -//===-- XCoreTargetObjectFile.cpp - XCore object files --------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "XCoreTargetObjectFile.h" -#include "XCoreSubtarget.h" -#include "llvm/BinaryFormat/ELF.h" -#include "llvm/IR/DataLayout.h" -#include "llvm/MC/MCContext.h" -#include "llvm/MC/MCSectionELF.h" -#include "llvm/Target/TargetMachine.h" - -using namespace llvm; - - -void XCoreTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM){ - TargetLoweringObjectFileELF::Initialize(Ctx, TM); - - BSSSection = Ctx.getELFSection(".dp.bss", ELF::SHT_NOBITS, - ELF::SHF_ALLOC | ELF::SHF_WRITE | - ELF::XCORE_SHF_DP_SECTION); - BSSSectionLarge = Ctx.getELFSection(".dp.bss.large", ELF::SHT_NOBITS, - ELF::SHF_ALLOC | ELF::SHF_WRITE | - ELF::XCORE_SHF_DP_SECTION); - DataSection = Ctx.getELFSection(".dp.data", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_WRITE | - ELF::XCORE_SHF_DP_SECTION); - DataSectionLarge = Ctx.getELFSection(".dp.data.large", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_WRITE | - ELF::XCORE_SHF_DP_SECTION); - DataRelROSection = Ctx.getELFSection(".dp.rodata", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_WRITE | - ELF::XCORE_SHF_DP_SECTION); - DataRelROSectionLarge = Ctx.getELFSection( - ".dp.rodata.large", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_WRITE | ELF::XCORE_SHF_DP_SECTION); - ReadOnlySection = - Ctx.getELFSection(".cp.rodata", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::XCORE_SHF_CP_SECTION); - ReadOnlySectionLarge = - Ctx.getELFSection(".cp.rodata.large", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::XCORE_SHF_CP_SECTION); - MergeableConst4Section = Ctx.getELFSection( - ".cp.rodata.cst4", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::XCORE_SHF_CP_SECTION, 4, ""); - MergeableConst8Section = Ctx.getELFSection( - ".cp.rodata.cst8", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::XCORE_SHF_CP_SECTION, 8, ""); - MergeableConst16Section = Ctx.getELFSection( - ".cp.rodata.cst16", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::XCORE_SHF_CP_SECTION, 16, ""); - CStringSection = - Ctx.getELFSection(".cp.rodata.string", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS | - ELF::XCORE_SHF_CP_SECTION); - // TextSection - see MObjectFileInfo.cpp - // StaticCtorSection - see MObjectFileInfo.cpp - // StaticDtorSection - see MObjectFileInfo.cpp - } - -static unsigned getXCoreSectionType(SectionKind K) { - if (K.isBSS()) - return ELF::SHT_NOBITS; - return ELF::SHT_PROGBITS; -} - -static unsigned getXCoreSectionFlags(SectionKind K, bool IsCPRel) { - unsigned Flags = 0; - - if (!K.isMetadata()) - Flags |= ELF::SHF_ALLOC; - - if (K.isText()) - Flags |= ELF::SHF_EXECINSTR; - else if (IsCPRel) - Flags |= ELF::XCORE_SHF_CP_SECTION; - else - Flags |= ELF::XCORE_SHF_DP_SECTION; - - if (K.isWriteable()) - Flags |= ELF::SHF_WRITE; - - if (K.isMergeableCString() || K.isMergeableConst4() || - K.isMergeableConst8() || K.isMergeableConst16()) - Flags |= ELF::SHF_MERGE; - - if (K.isMergeableCString()) - Flags |= ELF::SHF_STRINGS; - - return Flags; -} - -MCSection *XCoreTargetObjectFile::getExplicitSectionGlobal( - const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const { - StringRef SectionName = GO->getSection(); - // Infer section flags from the section name if we can. - bool IsCPRel = SectionName.startswith(".cp."); - if (IsCPRel && !Kind.isReadOnly()) - report_fatal_error("Using .cp. section for writeable object."); - return getContext().getELFSection(SectionName, getXCoreSectionType(Kind), - getXCoreSectionFlags(Kind, IsCPRel)); -} - -MCSection *XCoreTargetObjectFile::SelectSectionForGlobal( - const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const { - - bool UseCPRel = GO->hasLocalLinkage(); - - if (Kind.isText()) return TextSection; - if (UseCPRel) { - if (Kind.isMergeable1ByteCString()) return CStringSection; - if (Kind.isMergeableConst4()) return MergeableConst4Section; - if (Kind.isMergeableConst8()) return MergeableConst8Section; - if (Kind.isMergeableConst16()) return MergeableConst16Section; - } - Type *ObjType = GO->getValueType(); - auto &DL = GO->getParent()->getDataLayout(); - if (TM.getCodeModel() == CodeModel::Small || !ObjType->isSized() || - DL.getTypeAllocSize(ObjType) < CodeModelLargeSize) { - if (Kind.isReadOnly()) return UseCPRel? ReadOnlySection - : DataRelROSection; - if (Kind.isBSS() || Kind.isCommon())return BSSSection; - if (Kind.isData()) - return DataSection; - if (Kind.isReadOnlyWithRel()) return DataRelROSection; - } else { - if (Kind.isReadOnly()) return UseCPRel? ReadOnlySectionLarge - : DataRelROSectionLarge; - if (Kind.isBSS() || Kind.isCommon())return BSSSectionLarge; - if (Kind.isData()) - return DataSectionLarge; - if (Kind.isReadOnlyWithRel()) return DataRelROSectionLarge; - } - - assert((Kind.isThreadLocal() || Kind.isCommon()) && "Unknown section kind"); - report_fatal_error("Target does not support TLS or Common sections"); -} - -MCSection *XCoreTargetObjectFile::getSectionForConstant(const DataLayout &DL, - SectionKind Kind, - const Constant *C, - unsigned &Align) const { - if (Kind.isMergeableConst4()) return MergeableConst4Section; - if (Kind.isMergeableConst8()) return MergeableConst8Section; - if (Kind.isMergeableConst16()) return MergeableConst16Section; - assert((Kind.isReadOnly() || Kind.isReadOnlyWithRel()) && - "Unknown section kind"); - // We assume the size of the object is never greater than CodeModelLargeSize. - // To handle CodeModelLargeSize changes to AsmPrinter would be required. - return ReadOnlySection; -} |