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,
- SectionKind::getBSS());
- BSSSectionLarge =
- Ctx.getELFSection(".dp.bss.large", ELF::SHT_NOBITS,
- ELF::SHF_ALLOC | ELF::SHF_WRITE |
- ELF::XCORE_SHF_DP_SECTION,
- SectionKind::getBSS());
- DataSection =
- Ctx.getELFSection(".dp.data", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC | ELF::SHF_WRITE |
- ELF::XCORE_SHF_DP_SECTION,
- SectionKind::getDataRel());
- DataSectionLarge =
- Ctx.getELFSection(".dp.data.large", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC | ELF::SHF_WRITE |
- ELF::XCORE_SHF_DP_SECTION,
- SectionKind::getDataRel());
- // This is the wrong place to decide if const data should be placed
- // in the .cp or .dp section.
- // Ideally we should set up DataRelROSection to use the '.dp.'' and use this
- // for const data, unless the front end explicitly states a '.cp.'' section.
+ 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,
- SectionKind::getReadOnlyWithRel());
+ 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,
- SectionKind::getReadOnlyWithRel());
- MergeableConst4Section =
- Ctx.getELFSection(".cp.rodata.cst4", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC | ELF::SHF_MERGE |
- ELF::XCORE_SHF_CP_SECTION,
- SectionKind::getMergeableConst4());
- MergeableConst8Section =
- Ctx.getELFSection(".cp.rodata.cst8", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC | ELF::SHF_MERGE |
- ELF::XCORE_SHF_CP_SECTION,
- SectionKind::getMergeableConst8());
- MergeableConst16Section =
- Ctx.getELFSection(".cp.rodata.cst16", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC | ELF::SHF_MERGE |
- ELF::XCORE_SHF_CP_SECTION,
- SectionKind::getMergeableConst16());
+ 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,
- SectionKind::getReadOnlyWithRel());
+ 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 SectionKind getXCoreKindForNamedSection(StringRef Name, SectionKind K) {
- if (Name.startswith(".cp."))
- return SectionKind::getReadOnly();
- return K;
-}
-
static unsigned getXCoreSectionType(SectionKind K) {
if (K.isBSS())
return ELF::SHT_NOBITS;
return ELF::SHT_PROGBITS;
}
-static unsigned getXCoreSectionFlags(SectionKind K) {
+static unsigned getXCoreSectionFlags(SectionKind K, bool IsCPRel) {
unsigned Flags = 0;
if (!K.isMetadata())
if (K.isText())
Flags |= ELF::SHF_EXECINSTR;
- else if (K.isReadOnly())
+ else if (IsCPRel)
Flags |= ELF::XCORE_SHF_CP_SECTION;
else
Flags |= ELF::XCORE_SHF_DP_SECTION;
return Flags;
}
-const MCSection *XCoreTargetObjectFile::
-getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
- Mangler *Mang, const TargetMachine &TM) const {
+MCSection *
+XCoreTargetObjectFile::getExplicitSectionGlobal(const GlobalValue *GV,
+ SectionKind Kind, Mangler &Mang,
+ const TargetMachine &TM) const {
StringRef SectionName = GV->getSection();
// Infer section flags from the section name if we can.
- Kind = getXCoreKindForNamedSection(SectionName, Kind);
+ 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), Kind);
+ getXCoreSectionFlags(Kind, IsCPRel));
}
-const MCSection *XCoreTargetObjectFile::
-SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, Mangler *Mang,
- TargetMachine &TM) const{
- if (Kind.isText()) return TextSection;
- if (Kind.isMergeable1ByteCString()) return CStringSection;
- if (Kind.isMergeableConst4()) return MergeableConst4Section;
- if (Kind.isMergeableConst8()) return MergeableConst8Section;
- if (Kind.isMergeableConst16()) return MergeableConst16Section;
+MCSection *
+XCoreTargetObjectFile::SelectSectionForGlobal(const GlobalValue *GV,
+ SectionKind Kind, Mangler &Mang,
+ const TargetMachine &TM) const {
+
+ bool UseCPRel = GV->isLocalLinkage(GV->getLinkage());
+ 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 = GV->getType()->getPointerElementType();
- if (TM.getCodeModel() == CodeModel::Small ||
- !ObjType->isSized() ||
- TM.getDataLayout()->getTypeAllocSize(ObjType) < CodeModelLargeSize) {
- if (Kind.isReadOnly()) return ReadOnlySection;
- if (Kind.isBSS()) return BSSSection;
- if (Kind.isDataRel()) return DataSection;
- if (Kind.isReadOnlyWithRel()) return ReadOnlySection;
+ auto &DL = GV->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.isDataRel()) return DataSection;
+ if (Kind.isReadOnlyWithRel()) return DataRelROSection;
} else {
- if (Kind.isReadOnly()) return ReadOnlySectionLarge;
- if (Kind.isBSS()) return BSSSectionLarge;
- if (Kind.isDataRel()) return DataSectionLarge;
- if (Kind.isReadOnlyWithRel()) return ReadOnlySectionLarge;
+ if (Kind.isReadOnly()) return UseCPRel? ReadOnlySectionLarge
+ : DataRelROSectionLarge;
+ if (Kind.isBSS() || Kind.isCommon())return BSSSectionLarge;
+ if (Kind.isDataRel()) 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");
}
-const MCSection *XCoreTargetObjectFile::
-getSectionForConstant(SectionKind Kind) const {
+MCSection *XCoreTargetObjectFile::getSectionForConstant(
+ const DataLayout &DL, SectionKind Kind, const Constant *C) const {
if (Kind.isMergeableConst4()) return MergeableConst4Section;
if (Kind.isMergeableConst8()) return MergeableConst8Section;
if (Kind.isMergeableConst16()) return MergeableConst16Section;
projects / oota-llvm.git / blobdiff