X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCAsmInfo.cpp;h=e43b80923c148af6a3b940547612d532b7f70c04;hb=60e425e99ba7ef05b7a52c7068a67c6baa25da38;hp=a275be2c53c5fa8026b5b3b0edb09d8ee83591ba;hpb=c1a887d76d95100e7e05aa76e077710bc4e0b1cf;p=oota-llvm.git diff --git a/lib/MC/MCAsmInfo.cpp b/lib/MC/MCAsmInfo.cpp index a275be2c53c..e43b80923c1 100644 --- a/lib/MC/MCAsmInfo.cpp +++ b/lib/MC/MCAsmInfo.cpp @@ -13,30 +13,42 @@ //===----------------------------------------------------------------------===// #include "llvm/MC/MCAsmInfo.h" -#include "llvm/System/DataTypes.h" +#include "llvm/MC/MCContext.h" +#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCStreamer.h" +#include "llvm/Support/DataTypes.h" +#include "llvm/Support/Dwarf.h" #include #include using namespace llvm; MCAsmInfo::MCAsmInfo() { + PointerSize = 4; + CalleeSaveStackSlotSize = 4; + + IsLittleEndian = true; + StackGrowsUp = false; HasSubsectionsViaSymbols = false; HasMachoZeroFillDirective = false; HasMachoTBSSDirective = false; HasStaticCtorDtorReferenceInStaticMode = false; + LinkerRequiresNonEmptyDwarfLines = false; MaxInstLength = 4; - PCSymbol = "$"; - SeparatorChar = ';'; - CommentColumn = 40; + MinInstAlignment = 1; + DollarIsPC = false; + SeparatorString = ";"; CommentString = "#"; - GlobalPrefix = ""; - PrivateGlobalPrefix = "."; - LinkerPrivateGlobalPrefix = ""; + LabelSuffix = ":"; + DebugLabelSuffix = ":"; + PrivateGlobalPrefix = "L"; InlineAsmStart = "APP"; InlineAsmEnd = "NO_APP"; + Code16Directive = ".code16"; + Code32Directive = ".code32"; + Code64Directive = ".code64"; AssemblerDialect = 0; - AllowQuotesInName = false; - AllowNameToStartWithDigit = false; - AllowPeriodsInName = true; + AllowAtInName = false; + UseDataRegionDirectives = false; ZeroDirective = "\t.zero\t"; AsciiDirective = "\t.ascii\t"; AscizDirective = "\t.asciz\t"; @@ -49,36 +61,39 @@ MCAsmInfo::MCAsmInfo() { AlignDirective = "\t.align\t"; AlignmentIsInBytes = true; TextAlignFillValue = 0; + GPRel64Directive = 0; GPRel32Directive = 0; GlobalDirective = "\t.globl\t"; HasSetDirective = true; - HasLCOMMDirective = false; + HasAggressiveSymbolFolding = true; COMMDirectiveAlignmentIsInBytes = true; + LCOMMDirectiveAlignmentType = LCOMM::NoAlignment; HasDotTypeDotSizeDirective = true; HasSingleParameterDotFile = true; + HasIdentDirective = false; HasNoDeadStrip = false; WeakRefDirective = 0; - WeakDefDirective = 0; - LinkOnceDirective = 0; + HasWeakDefDirective = false; + HasWeakDefCanBeHiddenDirective = false; + HasLinkOnceDirective = false; HiddenVisibilityAttr = MCSA_Hidden; + HiddenDeclarationVisibilityAttr = MCSA_Hidden; ProtectedVisibilityAttr = MCSA_Protected; HasLEB128 = false; - HasDotLocAndDotFile = false; SupportsDebugInformation = false; ExceptionsType = ExceptionHandling::None; - DwarfRequiresFrameSection = true; - DwarfUsesInlineInfoSection = false; - DwarfSectionOffsetDirective = 0; - HasMicrosoftFastStdCallMangling = false; - - AsmTransCBE = 0; + DwarfUsesRelocationsAcrossSections = true; + DwarfFDESymbolsUseAbsDiff = false; + DwarfRegNumForCFI = false; + NeedsDwarfSectionOffsetDirective = false; + UseParensForSymbolVariant = false; } MCAsmInfo::~MCAsmInfo() { } -unsigned MCAsmInfo::getULEB128Size(unsigned Value) { +unsigned MCAsmInfo::getULEB128Size(uint64_t Value) { unsigned Size = 0; do { Value >>= 7; @@ -87,7 +102,7 @@ unsigned MCAsmInfo::getULEB128Size(unsigned Value) { return Size; } -unsigned MCAsmInfo::getSLEB128Size(int Value) { +unsigned MCAsmInfo::getSLEB128Size(int64_t Value) { unsigned Size = 0; int Sign = Value >> (8 * sizeof(Value) - 1); bool IsMore; @@ -100,3 +115,25 @@ unsigned MCAsmInfo::getSLEB128Size(int Value) { } while (IsMore); return Size; } + +const MCExpr * +MCAsmInfo::getExprForPersonalitySymbol(const MCSymbol *Sym, + unsigned Encoding, + MCStreamer &Streamer) const { + return getExprForFDESymbol(Sym, Encoding, Streamer); +} + +const MCExpr * +MCAsmInfo::getExprForFDESymbol(const MCSymbol *Sym, + unsigned Encoding, + MCStreamer &Streamer) const { + if (!(Encoding & dwarf::DW_EH_PE_pcrel)) + return MCSymbolRefExpr::Create(Sym, Streamer.getContext()); + + MCContext &Context = Streamer.getContext(); + const MCExpr *Res = MCSymbolRefExpr::Create(Sym, Context); + MCSymbol *PCSym = Context.CreateTempSymbol(); + Streamer.EmitLabel(PCSym); + const MCExpr *PC = MCSymbolRefExpr::Create(PCSym, Context); + return MCBinaryExpr::CreateSub(Res, PC, Context); +}