+ if (!is64Bit)
+ Data64bitsDirective = 0; // we can't emit a 64-bit unit
+ ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
+ ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
+ if (TM.getRelocationModel() != Reloc::Static)
+ ConstantPoolSection = "\t.const_data";
+ else
+ ConstantPoolSection = "\t.const\n";
+ // FIXME: Why don't we always use this section?
+ if (is64Bit)
+ SixteenByteConstantSection = getUnnamedSection("\t.literal16\n",
+ SectionFlags::Mergeable);
+ LCOMMDirective = "\t.lcomm\t";
+ // Leopard and above support aligned common symbols.
+ COMMDirectiveTakesAlignment = (Subtarget->getDarwinVers() >= 9);
+ HasDotTypeDotSizeDirective = false;
+ NonLocalEHFrameLabel = true;
+ if (is64Bit) {
+ PersonalityPrefix = "";
+ PersonalitySuffix = "+4@GOTPCREL";
+ } else {
+ PersonalityPrefix = "L";
+ PersonalitySuffix = "$non_lazy_ptr";
+ }
+ InlineAsmStart = "## InlineAsm Start";
+ InlineAsmEnd = "## InlineAsm End";
+ CommentString = "##";
+ SetDirective = "\t.set";
+ PCSymbol = ".";
+ UsedDirective = "\t.no_dead_strip\t";
+ ProtectedDirective = "\t.globl\t";
+
+ SupportsDebugInformation = true;
+
+ DwarfDebugInlineSection = ".section __DWARF,__debug_inlined,regular,debug";
+ DwarfUsesInlineInfoSection = true;
+
+ // Exceptions handling
+ SupportsExceptionHandling = true;
+ GlobalEHDirective = "\t.globl\t";
+ SupportsWeakOmittedEHFrame = false;
+ AbsoluteEHSectionOffsets = false;
+ DwarfEHFrameSection =
+ ".section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support";
+ DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
+}
+
+unsigned
+X86DarwinTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
+ bool Global) const {
+ if (Reason == DwarfEncoding::Functions && Global)
+ return (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4);
+ else if (Reason == DwarfEncoding::CodeLabels || !Global)
+ return DW_EH_PE_pcrel;
+ else
+ return DW_EH_PE_absptr;
+}
+
+const char *
+X86DarwinTargetAsmInfo::getEHGlobalPrefix() const
+{
+ const X86Subtarget* Subtarget = &TM.getSubtarget<X86Subtarget>();
+ if (Subtarget->getDarwinVers() > 9)
+ return PrivateGlobalPrefix;
+ else
+ return "";
+}
+
+X86ELFTargetAsmInfo::X86ELFTargetAsmInfo(const X86TargetMachine &TM):
+ X86TargetAsmInfo<ELFTargetAsmInfo>(TM) {
+
+ CStringSection = ".rodata.str";
+ PrivateGlobalPrefix = ".L";
+ WeakRefDirective = "\t.weak\t";
+ SetDirective = "\t.set\t";
+ PCSymbol = ".";
+
+ // Set up DWARF directives
+ HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
+
+ // Debug Information
+ AbsoluteDebugSectionOffsets = true;
+ SupportsDebugInformation = true;
+ DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
+ DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
+ DwarfLineSection = "\t.section\t.debug_line,\"\",@progbits";
+ DwarfFrameSection = "\t.section\t.debug_frame,\"\",@progbits";
+ DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",@progbits";
+ DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",@progbits";
+ DwarfStrSection = "\t.section\t.debug_str,\"\",@progbits";
+ DwarfLocSection = "\t.section\t.debug_loc,\"\",@progbits";
+ DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
+ DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
+ DwarfMacroInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
+
+ // Exceptions handling
+ SupportsExceptionHandling = true;
+ AbsoluteEHSectionOffsets = false;
+ DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
+ DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";
+
+ // On Linux we must declare when we can use a non-executable stack.
+ if (TM.getSubtarget<X86Subtarget>().isLinux())
+ NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
+}
+
+unsigned
+X86ELFTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
+ bool Global) const {
+ CodeModel::Model CM = TM.getCodeModel();
+ bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
+
+ if (TM.getRelocationModel() == Reloc::PIC_) {
+ unsigned Format = 0;
+
+ if (!is64Bit)
+ // 32 bit targets always encode pointers as 4 bytes
+ Format = DW_EH_PE_sdata4;
+ else {
+ // 64 bit targets encode pointers in 4 bytes iff:
+ // - code model is small OR
+ // - code model is medium and we're emitting externally visible symbols
+ // or any code symbols
+ if (CM == CodeModel::Small ||
+ (CM == CodeModel::Medium && (Global ||
+ Reason != DwarfEncoding::Data)))
+ Format = DW_EH_PE_sdata4;
+ else
+ Format = DW_EH_PE_sdata8;