// Generic Code
//===----------------------------------------------------------------------===//
-TargetLoweringObjectFile::TargetLoweringObjectFile() :
- Ctx(0),
- TextSection(0),
- DataSection(0),
- BSSSection(0),
- ReadOnlySection(0),
- StaticCtorSection(0),
- StaticDtorSection(0),
- LSDASection(0),
- CompactUnwindSection(0),
- DwarfAbbrevSection(0),
- DwarfInfoSection(0),
- DwarfLineSection(0),
- DwarfFrameSection(0),
- DwarfPubNamesSection(0),
- DwarfPubTypesSection(0),
- DwarfDebugInlineSection(0),
- DwarfStrSection(0),
- DwarfLocSection(0),
- DwarfARangesSection(0),
- DwarfRangesSection(0),
- DwarfMacroInfoSection(0),
- TLSExtraDataSection(0),
- CommDirectiveSupportsAlignment(true),
- SupportsWeakOmittedEHFrame(true),
- IsFunctionEHFrameSymbolPrivate(true) {
+/// Initialize - this method must be called before any actual lowering is
+/// done. This specifies the current context for codegen, and gives the
+/// lowering implementations a chance to set up their default sections.
+void TargetLoweringObjectFile::Initialize(MCContext &ctx,
+ const TargetMachine &TM) {
+ Ctx = &ctx;
+ InitMCObjectFileInfo(TM.getTargetTriple(),
+ TM.getRelocationModel(), TM.getCodeModel(), *Ctx);
}
-
+
TargetLoweringObjectFile::~TargetLoweringObjectFile() {
}
-static bool isSuitableForBSS(const GlobalVariable *GV) {
+static bool isSuitableForBSS(const GlobalVariable *GV, bool NoZerosInBSS) {
const Constant *C = GV->getInitializer();
// Must have zero initializer.
// Handle thread-local data first.
if (GVar->isThreadLocal()) {
- if (isSuitableForBSS(GVar))
+ if (isSuitableForBSS(GVar, TM.Options.NoZerosInBSS))
return SectionKind::getThreadBSS();
return SectionKind::getThreadData();
}
return SectionKind::getCommon();
// Variable can be easily put to BSS section.
- if (isSuitableForBSS(GVar)) {
+ if (isSuitableForBSS(GVar, TM.Options.NoZerosInBSS)) {
if (GVar->hasLocalLinkage())
return SectionKind::getBSSLocal();
else if (GVar->hasExternalLinkage())
// relocation, then we may have to drop this into a wriable data section
// even though it is marked const.
switch (C->getRelocationInfo()) {
- default: assert(0 && "unknown relocation info kind");
case Constant::NoRelocation:
// If the global is required to have a unique address, it can't be put
// into a mergable section: just drop it into the general read-only
return SectionKind::getDataNoRel();
switch (C->getRelocationInfo()) {
- default: assert(0 && "unknown relocation info kind");
case Constant::NoRelocation:
return SectionKind::getDataNoRel();
case Constant::LocalRelocation:
case Constant::GlobalRelocations:
return SectionKind::getDataRel();
}
+ llvm_unreachable("Invalid relocation");
}
/// SectionForGlobal - This method computes the appropriate section to emit
}
}
}
-
-unsigned TargetLoweringObjectFile::getPersonalityEncoding() const {
- return dwarf::DW_EH_PE_absptr;
-}
-
-unsigned TargetLoweringObjectFile::getLSDAEncoding() const {
- return dwarf::DW_EH_PE_absptr;
-}
-
-unsigned TargetLoweringObjectFile::getFDEEncoding(bool CFI) const {
- return dwarf::DW_EH_PE_absptr;
-}
-
-unsigned TargetLoweringObjectFile::getTTypeEncoding() const {
- return dwarf::DW_EH_PE_absptr;
-}
-