Home | History | Annotate | Download | only in MCTargetDesc 
      1 //===-- SparcMCAsmInfo.cpp - Sparc asm properties -------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file contains the declarations of the SparcMCAsmInfo properties.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "SparcMCAsmInfo.h"
     15 #include "SparcMCExpr.h"
     16 #include "llvm/ADT/Triple.h"
     17 #include "llvm/MC/MCStreamer.h"
     18 
     19 using namespace llvm;
     20 
     21 void SparcELFMCAsmInfo::anchor() {}
     22 
     23 SparcELFMCAsmInfo::SparcELFMCAsmInfo(const Triple &TheTriple) {
     24   bool isV9 = (TheTriple.getArch() == Triple::sparcv9);
     25   IsLittleEndian = (TheTriple.getArch() == Triple::sparcel);
     26 
     27   if (isV9) {
     28     PointerSize = CalleeSaveStackSlotSize = 8;
     29   }
     30 
     31   Data16bitsDirective = "\t.half\t";
     32   Data32bitsDirective = "\t.word\t";
     33   // .xword is only supported by V9.
     34   Data64bitsDirective = (isV9) ? "\t.xword\t" : nullptr;
     35   ZeroDirective = "\t.skip\t";
     36   CommentString = "!";
     37   SupportsDebugInformation = true;
     38 
     39   ExceptionsType = ExceptionHandling::DwarfCFI;
     40 
     41   SunStyleELFSectionSwitchSyntax = true;
     42   UsesELFSectionDirectiveForBSS = true;
     43 
     44   UseIntegratedAssembler = true;
     45 }
     46 
     47 const MCExpr*
     48 SparcELFMCAsmInfo::getExprForPersonalitySymbol(const MCSymbol *Sym,
     49                                                unsigned Encoding,
     50                                                MCStreamer &Streamer) const {
     51   if (Encoding & dwarf::DW_EH_PE_pcrel) {
     52     MCContext &Ctx = Streamer.getContext();
     53     return SparcMCExpr::create(SparcMCExpr::VK_Sparc_R_DISP32,
     54                                MCSymbolRefExpr::create(Sym, Ctx), Ctx);
     55   }
     56 
     57   return MCAsmInfo::getExprForPersonalitySymbol(Sym, Encoding, Streamer);
     58 }
     59 
     60 const MCExpr*
     61 SparcELFMCAsmInfo::getExprForFDESymbol(const MCSymbol *Sym,
     62                                        unsigned Encoding,
     63                                        MCStreamer &Streamer) const {
     64   if (Encoding & dwarf::DW_EH_PE_pcrel) {
     65     MCContext &Ctx = Streamer.getContext();
     66     return SparcMCExpr::create(SparcMCExpr::VK_Sparc_R_DISP32,
     67                                MCSymbolRefExpr::create(Sym, Ctx), Ctx);
     68   }
     69   return MCAsmInfo::getExprForFDESymbol(Sym, Encoding, Streamer);
     70 }
     71