//===----------------------------------------------------------------------===//
#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 <cctype>
#include <cstring>
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;
+ AllowAtInName = false;
+ UseDataRegionDirectives = false;
ZeroDirective = "\t.zero\t";
AsciiDirective = "\t.ascii\t";
AscizDirective = "\t.asciz\t";
Data64bitsDirective = "\t.quad\t";
SunStyleELFSectionSwitchSyntax = false;
UsesELFSectionDirectiveForBSS = false;
- 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;
- AbsoluteDebugSectionOffsets = false;
- AbsoluteEHSectionOffsets = false;
HasLEB128 = false;
- HasDotLocAndDotFile = false;
SupportsDebugInformation = false;
ExceptionsType = ExceptionHandling::None;
- DwarfRequiresFrameSection = true;
- DwarfUsesInlineInfoSection = false;
- DwarfSectionOffsetDirective = 0;
- HasMicrosoftFastStdCallMangling = false;
+ DwarfUsesRelocationsAcrossSections = true;
+ DwarfFDESymbolsUseAbsDiff = false;
+ DwarfRegNumForCFI = false;
+ NeedsDwarfSectionOffsetDirective = false;
+ UseParensForSymbolVariant = false;
- AsmTransCBE = 0;
+ // FIXME: Clang's logic should be synced with the logic used to initialize
+ // this member and the two implementations should be merged.
+ // For reference:
+ // - Solaris always enables the integrated assembler by default
+ // - SparcELFMCAsmInfo and X86ELFMCAsmInfo are handling this case
+ // - Windows always enables the integrated assembler by default
+ // - MCAsmInfoCOFF is handling this case, should it be MCAsmInfoMicrosoft?
+ // - MachO targets always enables the integrated assembler by default
+ // - MCAsmInfoDarwin is handling this case
+ // - Generic_GCC toolchains enable the integrated assembler on a per
+ // architecture basis.
+ // - The target subclasses for AArch64, ARM, and X86 handle these cases
+ UseIntegratedAssembler = false;
}
MCAsmInfo::~MCAsmInfo() {
}
-
-unsigned MCAsmInfo::getULEB128Size(unsigned Value) {
- unsigned Size = 0;
- do {
- Value >>= 7;
- Size += sizeof(int8_t);
- } while (Value);
- return Size;
+const MCExpr *
+MCAsmInfo::getExprForPersonalitySymbol(const MCSymbol *Sym,
+ unsigned Encoding,
+ MCStreamer &Streamer) const {
+ return getExprForFDESymbol(Sym, Encoding, Streamer);
}
-unsigned MCAsmInfo::getSLEB128Size(int Value) {
- unsigned Size = 0;
- int Sign = Value >> (8 * sizeof(Value) - 1);
- bool IsMore;
+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());
- do {
- unsigned Byte = Value & 0x7f;
- Value >>= 7;
- IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
- Size += sizeof(int8_t);
- } while (IsMore);
- return Size;
+ 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);
}