-void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
- const TargetMachine &TM) {
- // _foo.eh symbols are currently always exported so that the linker knows
- // about them. This is not necessary on 10.6 and later, but it
- // doesn't hurt anything.
- // FIXME: I need to get this from Triple.
- IsFunctionEHSymbolGlobal = true;
- IsFunctionEHFrameSymbolPrivate = false;
- SupportsWeakOmittedEHFrame = false;
-
- // .comm doesn't support alignment before Leopard.
- Triple T(((LLVMTargetMachine&)TM).getTargetTriple());
- if (T.isMacOSX() && T.isMacOSXVersionLT(10, 5))
- CommDirectiveSupportsAlignment = false;
-
- TargetLoweringObjectFile::Initialize(Ctx, TM);
-
- TextSection // .text
- = getContext().getMachOSection("__TEXT", "__text",
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- SectionKind::getText());
- DataSection // .data
- = getContext().getMachOSection("__DATA", "__data", 0,
- SectionKind::getDataRel());
-
- TLSDataSection // .tdata
- = getContext().getMachOSection("__DATA", "__thread_data",
- MCSectionMachO::S_THREAD_LOCAL_REGULAR,
- SectionKind::getDataRel());
- TLSBSSSection // .tbss
- = getContext().getMachOSection("__DATA", "__thread_bss",
- MCSectionMachO::S_THREAD_LOCAL_ZEROFILL,
- SectionKind::getThreadBSS());
-
- // TODO: Verify datarel below.
- TLSTLVSection // .tlv
- = getContext().getMachOSection("__DATA", "__thread_vars",
- MCSectionMachO::S_THREAD_LOCAL_VARIABLES,
- SectionKind::getDataRel());
-
- TLSThreadInitSection
- = getContext().getMachOSection("__DATA", "__thread_init",
- MCSectionMachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS,
- SectionKind::getDataRel());
-
- CStringSection // .cstring
- = getContext().getMachOSection("__TEXT", "__cstring",
- MCSectionMachO::S_CSTRING_LITERALS,
- SectionKind::getMergeable1ByteCString());
- UStringSection
- = getContext().getMachOSection("__TEXT","__ustring", 0,
- SectionKind::getMergeable2ByteCString());
- FourByteConstantSection // .literal4
- = getContext().getMachOSection("__TEXT", "__literal4",
- MCSectionMachO::S_4BYTE_LITERALS,
- SectionKind::getMergeableConst4());
- EightByteConstantSection // .literal8
- = getContext().getMachOSection("__TEXT", "__literal8",
- MCSectionMachO::S_8BYTE_LITERALS,
- SectionKind::getMergeableConst8());
-
- // ld_classic doesn't support .literal16 in 32-bit mode, and ld64 falls back
- // to using it in -static mode.
- SixteenByteConstantSection = 0;
- if (TM.getRelocationModel() != Reloc::Static &&
- TM.getTargetData()->getPointerSize() == 32)
- SixteenByteConstantSection = // .literal16
- getContext().getMachOSection("__TEXT", "__literal16",
- MCSectionMachO::S_16BYTE_LITERALS,
- SectionKind::getMergeableConst16());
-
- ReadOnlySection // .const
- = getContext().getMachOSection("__TEXT", "__const", 0,
- SectionKind::getReadOnly());
-
- TextCoalSection
- = getContext().getMachOSection("__TEXT", "__textcoal_nt",
- MCSectionMachO::S_COALESCED |
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- SectionKind::getText());
- ConstTextCoalSection
- = getContext().getMachOSection("__TEXT", "__const_coal",
- MCSectionMachO::S_COALESCED,
- SectionKind::getReadOnly());
- ConstDataSection // .const_data
- = getContext().getMachOSection("__DATA", "__const", 0,
- SectionKind::getReadOnlyWithRel());
- DataCoalSection
- = getContext().getMachOSection("__DATA","__datacoal_nt",
- MCSectionMachO::S_COALESCED,
- SectionKind::getDataRel());
- DataCommonSection
- = getContext().getMachOSection("__DATA","__common",
- MCSectionMachO::S_ZEROFILL,
- SectionKind::getBSS());
- DataBSSSection
- = getContext().getMachOSection("__DATA","__bss", MCSectionMachO::S_ZEROFILL,
- SectionKind::getBSS());
-
-
- LazySymbolPointerSection
- = getContext().getMachOSection("__DATA", "__la_symbol_ptr",
- MCSectionMachO::S_LAZY_SYMBOL_POINTERS,
- SectionKind::getMetadata());
- NonLazySymbolPointerSection
- = getContext().getMachOSection("__DATA", "__nl_symbol_ptr",
- MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS,
- SectionKind::getMetadata());
-
- if (TM.getRelocationModel() == Reloc::Static) {
- StaticCtorSection
- = getContext().getMachOSection("__TEXT", "__constructor", 0,
- SectionKind::getDataRel());
- StaticDtorSection
- = getContext().getMachOSection("__TEXT", "__destructor", 0,
- SectionKind::getDataRel());
- } else {
- StaticCtorSection
- = getContext().getMachOSection("__DATA", "__mod_init_func",
- MCSectionMachO::S_MOD_INIT_FUNC_POINTERS,
- SectionKind::getDataRel());
- StaticDtorSection
- = getContext().getMachOSection("__DATA", "__mod_term_func",
- MCSectionMachO::S_MOD_TERM_FUNC_POINTERS,
- SectionKind::getDataRel());
- }
-
- // Exception Handling.
- LSDASection = getContext().getMachOSection("__TEXT", "__gcc_except_tab", 0,
- SectionKind::getReadOnlyWithRel());
- // Debug Information.
- DwarfAbbrevSection =
- getContext().getMachOSection("__DWARF", "__debug_abbrev",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfInfoSection =
- getContext().getMachOSection("__DWARF", "__debug_info",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfLineSection =
- getContext().getMachOSection("__DWARF", "__debug_line",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfFrameSection =
- getContext().getMachOSection("__DWARF", "__debug_frame",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfPubNamesSection =
- getContext().getMachOSection("__DWARF", "__debug_pubnames",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfPubTypesSection =
- getContext().getMachOSection("__DWARF", "__debug_pubtypes",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfStrSection =
- getContext().getMachOSection("__DWARF", "__debug_str",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfLocSection =
- getContext().getMachOSection("__DWARF", "__debug_loc",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfARangesSection =
- getContext().getMachOSection("__DWARF", "__debug_aranges",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfRangesSection =
- getContext().getMachOSection("__DWARF", "__debug_ranges",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfMacroInfoSection =
- getContext().getMachOSection("__DWARF", "__debug_macinfo",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
- DwarfDebugInlineSection =
- getContext().getMachOSection("__DWARF", "__debug_inlined",
- MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
-
- TLSExtraDataSection = TLSTLVSection;
-}
-
-const MCSection *TargetLoweringObjectFileMachO::getEHFrameSection() const {
- return getContext().getMachOSection("__TEXT", "__eh_frame",
- MCSectionMachO::S_COALESCED |
- MCSectionMachO::S_ATTR_NO_TOC |
- MCSectionMachO::S_ATTR_STRIP_STATIC_SYMS |
- MCSectionMachO::S_ATTR_LIVE_SUPPORT,
- SectionKind::getReadOnly());
-}
-