forked from OSchip/llvm-project
[MCObjectFileInfo] Fix uninitialized variable warnings. NFCI.
This commit is contained in:
Simon Pilgrim
parent
c7f127d93f
commit
dec21e4451
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@ -27,20 +27,20 @@ class MCObjectFileInfo {
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protected:
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/// True if .comm supports alignment. This is a hack for as long as we
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/// support 10.4 Tiger, whose assembler doesn't support alignment on comm.
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bool CommDirectiveSupportsAlignment;
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bool CommDirectiveSupportsAlignment = false;
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/// True if target object file supports a weak_definition of constant 0 for an
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/// omitted EH frame.
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bool SupportsWeakOmittedEHFrame;
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bool SupportsWeakOmittedEHFrame = false;
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/// True if the target object file supports emitting a compact unwind section
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/// without an associated EH frame section.
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bool SupportsCompactUnwindWithoutEHFrame;
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bool SupportsCompactUnwindWithoutEHFrame = false;
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/// OmitDwarfIfHaveCompactUnwind - True if the target object file
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/// supports having some functions with compact unwind and other with
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/// dwarf unwind.
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bool OmitDwarfIfHaveCompactUnwind;
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bool OmitDwarfIfHaveCompactUnwind = false;
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/// FDE CFI encoding. Controls the encoding of the begin label in the
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/// .eh_frame section. Unlike the LSDA encoding, personality encoding, and
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@ -49,134 +49,134 @@ protected:
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unsigned FDECFIEncoding = 0;
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/// Compact unwind encoding indicating that we should emit only an EH frame.
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unsigned CompactUnwindDwarfEHFrameOnly;
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unsigned CompactUnwindDwarfEHFrameOnly = 0;
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/// Section directive for standard text.
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MCSection *TextSection;
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MCSection *TextSection = nullptr;
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/// Section directive for standard data.
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MCSection *DataSection;
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MCSection *DataSection = nullptr;
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/// Section that is default initialized to zero.
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MCSection *BSSSection;
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MCSection *BSSSection = nullptr;
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/// Section that is readonly and can contain arbitrary initialized data.
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/// Targets are not required to have a readonly section. If they don't,
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/// various bits of code will fall back to using the data section for
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/// constants.
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MCSection *ReadOnlySection;
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MCSection *ReadOnlySection = nullptr;
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/// If exception handling is supported by the target, this is the section the
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/// Language Specific Data Area information is emitted to.
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MCSection *LSDASection;
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MCSection *LSDASection = nullptr;
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/// If exception handling is supported by the target and the target can
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/// support a compact representation of the CIE and FDE, this is the section
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/// to emit them into.
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MCSection *CompactUnwindSection;
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MCSection *CompactUnwindSection = nullptr;
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// Dwarf sections for debug info. If a target supports debug info, these must
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// be set.
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MCSection *DwarfAbbrevSection;
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MCSection *DwarfInfoSection;
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MCSection *DwarfLineSection;
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MCSection *DwarfLineStrSection;
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MCSection *DwarfFrameSection;
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MCSection *DwarfPubTypesSection;
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const MCSection *DwarfDebugInlineSection;
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MCSection *DwarfStrSection;
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MCSection *DwarfLocSection;
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MCSection *DwarfARangesSection;
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MCSection *DwarfRangesSection;
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MCSection *DwarfMacinfoSection;
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MCSection *DwarfAbbrevSection = nullptr;
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MCSection *DwarfInfoSection = nullptr;
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MCSection *DwarfLineSection = nullptr;
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MCSection *DwarfLineStrSection = nullptr;
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MCSection *DwarfFrameSection = nullptr;
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MCSection *DwarfPubTypesSection = nullptr;
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const MCSection *DwarfDebugInlineSection = nullptr;
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MCSection *DwarfStrSection = nullptr;
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MCSection *DwarfLocSection = nullptr;
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MCSection *DwarfARangesSection = nullptr;
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MCSection *DwarfRangesSection = nullptr;
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MCSection *DwarfMacinfoSection = nullptr;
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// The pubnames section is no longer generated by default. The generation
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// can be enabled by a compiler flag.
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MCSection *DwarfPubNamesSection;
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MCSection *DwarfPubNamesSection = nullptr;
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/// Accelerator table sections. DwarfDebugNamesSection is the DWARF v5
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/// accelerator table, while DwarfAccelNamesSection, DwarfAccelObjCSection,
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/// DwarfAccelNamespaceSection, DwarfAccelTypesSection are pre-DWARF v5
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/// extensions.
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MCSection *DwarfDebugNamesSection;
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MCSection *DwarfAccelNamesSection;
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MCSection *DwarfAccelObjCSection;
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MCSection *DwarfAccelNamespaceSection;
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MCSection *DwarfAccelTypesSection;
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MCSection *DwarfDebugNamesSection = nullptr;
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MCSection *DwarfAccelNamesSection = nullptr;
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MCSection *DwarfAccelObjCSection = nullptr;
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MCSection *DwarfAccelNamespaceSection = nullptr;
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MCSection *DwarfAccelTypesSection = nullptr;
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// These are used for the Fission separate debug information files.
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MCSection *DwarfInfoDWOSection;
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MCSection *DwarfTypesDWOSection;
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MCSection *DwarfAbbrevDWOSection;
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MCSection *DwarfStrDWOSection;
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MCSection *DwarfLineDWOSection;
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MCSection *DwarfLocDWOSection;
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MCSection *DwarfStrOffDWOSection;
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MCSection *DwarfInfoDWOSection = nullptr;
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MCSection *DwarfTypesDWOSection = nullptr;
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MCSection *DwarfAbbrevDWOSection = nullptr;
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MCSection *DwarfStrDWOSection = nullptr;
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MCSection *DwarfLineDWOSection = nullptr;
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MCSection *DwarfLocDWOSection = nullptr;
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MCSection *DwarfStrOffDWOSection = nullptr;
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/// The DWARF v5 string offset and address table sections.
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MCSection *DwarfStrOffSection;
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MCSection *DwarfAddrSection;
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MCSection *DwarfStrOffSection = nullptr;
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MCSection *DwarfAddrSection = nullptr;
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/// The DWARF v5 range list section.
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MCSection *DwarfRnglistsSection;
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MCSection *DwarfRnglistsSection = nullptr;
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/// The DWARF v5 locations list section.
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MCSection *DwarfLoclistsSection;
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MCSection *DwarfLoclistsSection = nullptr;
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/// The DWARF v5 range list section for fission.
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MCSection *DwarfRnglistsDWOSection;
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MCSection *DwarfRnglistsDWOSection = nullptr;
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// These are for Fission DWP files.
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MCSection *DwarfCUIndexSection;
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MCSection *DwarfTUIndexSection;
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MCSection *DwarfCUIndexSection = nullptr;
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MCSection *DwarfTUIndexSection = nullptr;
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/// Section for newer gnu pubnames.
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MCSection *DwarfGnuPubNamesSection;
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MCSection *DwarfGnuPubNamesSection = nullptr;
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/// Section for newer gnu pubtypes.
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MCSection *DwarfGnuPubTypesSection;
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MCSection *DwarfGnuPubTypesSection = nullptr;
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// Section for Swift AST
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MCSection *DwarfSwiftASTSection;
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MCSection *DwarfSwiftASTSection = nullptr;
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MCSection *COFFDebugSymbolsSection;
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MCSection *COFFDebugTypesSection;
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MCSection *COFFGlobalTypeHashesSection;
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MCSection *COFFDebugSymbolsSection = nullptr;
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MCSection *COFFDebugTypesSection = nullptr;
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MCSection *COFFGlobalTypeHashesSection = nullptr;
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/// Extra TLS Variable Data section.
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///
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/// If the target needs to put additional information for a TLS variable,
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/// it'll go here.
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MCSection *TLSExtraDataSection;
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MCSection *TLSExtraDataSection = nullptr;
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/// Section directive for Thread Local data. ELF, MachO, COFF, and Wasm.
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MCSection *TLSDataSection; // Defaults to ".tdata".
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MCSection *TLSDataSection = nullptr; // Defaults to ".tdata".
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/// Section directive for Thread Local uninitialized data.
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///
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/// Null if this target doesn't support a BSS section. ELF and MachO only.
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MCSection *TLSBSSSection; // Defaults to ".tbss".
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MCSection *TLSBSSSection = nullptr; // Defaults to ".tbss".
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/// StackMap section.
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MCSection *StackMapSection;
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MCSection *StackMapSection = nullptr;
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/// FaultMap section.
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MCSection *FaultMapSection;
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MCSection *FaultMapSection = nullptr;
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/// Remarks section.
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MCSection *RemarksSection;
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MCSection *RemarksSection = nullptr;
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/// EH frame section.
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///
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/// It is initialized on demand so it can be overwritten (with uniquing).
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MCSection *EHFrameSection;
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MCSection *EHFrameSection = nullptr;
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/// Section containing metadata on function stack sizes.
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MCSection *StackSizesSection;
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MCSection *StackSizesSection = nullptr;
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mutable DenseMap<const MCSymbol *, unsigned> StackSizesUniquing;
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// ELF specific sections.
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MCSection *DataRelROSection;
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MCSection *MergeableConst4Section;
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MCSection *MergeableConst8Section;
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MCSection *MergeableConst16Section;
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MCSection *MergeableConst32Section;
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MCSection *DataRelROSection = nullptr;
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MCSection *MergeableConst4Section = nullptr;
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MCSection *MergeableConst8Section = nullptr;
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MCSection *MergeableConst16Section = nullptr;
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MCSection *MergeableConst32Section = nullptr;
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// MachO specific sections.
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@ -184,34 +184,35 @@ protected:
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///
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/// Contains the source code name of the variable, visibility and a pointer to
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/// the initial value (.tdata or .tbss).
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MCSection *TLSTLVSection; // Defaults to ".tlv".
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MCSection *TLSTLVSection = nullptr; // Defaults to ".tlv".
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/// Section for thread local data initialization functions.
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const MCSection *TLSThreadInitSection; // Defaults to ".thread_init_func".
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// Defaults to ".thread_init_func".
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const MCSection *TLSThreadInitSection = nullptr;
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MCSection *CStringSection;
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MCSection *UStringSection;
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MCSection *TextCoalSection;
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MCSection *ConstTextCoalSection;
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MCSection *ConstDataSection;
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MCSection *DataCoalSection;
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MCSection *ConstDataCoalSection;
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MCSection *DataCommonSection;
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MCSection *DataBSSSection;
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MCSection *FourByteConstantSection;
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MCSection *EightByteConstantSection;
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MCSection *SixteenByteConstantSection;
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MCSection *LazySymbolPointerSection;
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MCSection *NonLazySymbolPointerSection;
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MCSection *ThreadLocalPointerSection;
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MCSection *CStringSection = nullptr;
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MCSection *UStringSection = nullptr;
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MCSection *TextCoalSection = nullptr;
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MCSection *ConstTextCoalSection = nullptr;
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MCSection *ConstDataSection = nullptr;
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MCSection *DataCoalSection = nullptr;
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MCSection *ConstDataCoalSection = nullptr;
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MCSection *DataCommonSection = nullptr;
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MCSection *DataBSSSection = nullptr;
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MCSection *FourByteConstantSection = nullptr;
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MCSection *EightByteConstantSection = nullptr;
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MCSection *SixteenByteConstantSection = nullptr;
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MCSection *LazySymbolPointerSection = nullptr;
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MCSection *NonLazySymbolPointerSection = nullptr;
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MCSection *ThreadLocalPointerSection = nullptr;
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/// COFF specific sections.
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MCSection *DrectveSection;
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MCSection *PDataSection;
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MCSection *XDataSection;
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MCSection *SXDataSection;
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MCSection *GFIDsSection;
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MCSection *GLJMPSection;
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MCSection *DrectveSection = nullptr;
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MCSection *PDataSection = nullptr;
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MCSection *XDataSection = nullptr;
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MCSection *SXDataSection = nullptr;
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MCSection *GFIDsSection = nullptr;
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MCSection *GLJMPSection = nullptr;
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public:
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void InitMCObjectFileInfo(const Triple &TT, bool PIC, MCContext &ctx,
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@ -393,8 +394,8 @@ public:
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private:
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Environment Env;
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bool PositionIndependent;
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MCContext *Ctx;
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bool PositionIndependent = false;
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MCContext *Ctx = nullptr;
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Triple TT;
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VersionTuple SDKVersion;
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