lib/Target/Sparc/MCTargetDesc/SparcMCAsmInfo.cpp

   1 //===- SparcMCAsmInfo.cpp - Sparc asm properties --------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file contains the declarations of the SparcMCAsmInfo properties.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "SparcMCAsmInfo.h"
  14 #include "SparcMCExpr.h"
  15 #include "llvm/ADT/Triple.h"
  16 #include "llvm/BinaryFormat/Dwarf.h"
  17 #include "llvm/MC/MCExpr.h"
  18 #include "llvm/MC/MCStreamer.h"
  19 #include "llvm/MC/MCTargetOptions.h"
  20
  21 using namespace llvm;
  22
  23 void SparcELFMCAsmInfo::anchor() {}
  24
  25 SparcELFMCAsmInfo::SparcELFMCAsmInfo(const Triple &TheTriple) {
  26   bool isV9 = (TheTriple.getArch() == Triple::sparcv9);
  27   IsLittleEndian = (TheTriple.getArch() == Triple::sparcel);
  28
  29   if (isV9) {
  30     CodePointerSize = CalleeSaveStackSlotSize = 8;
  31   }
  32
  33   Data16bitsDirective = "\t.half\t";
  34   Data32bitsDirective = "\t.word\t";
  35   // .xword is only supported by V9.
  36   Data64bitsDirective = (isV9) ? "\t.xword\t" : nullptr;
  37   ZeroDirective = "\t.skip\t";
  38   CommentString = "!";
  39   SupportsDebugInformation = true;
  40
  41   ExceptionsType = ExceptionHandling::DwarfCFI;
  42
  43   SunStyleELFSectionSwitchSyntax = true;
  44   UsesELFSectionDirectiveForBSS = true;
  45
  46   UseIntegratedAssembler = true;
  47 }
  48
  49 const MCExpr*
  50 SparcELFMCAsmInfo::getExprForPersonalitySymbol(const MCSymbol *Sym,
  51                                                unsigned Encoding,
  52                                                MCStreamer &Streamer) const {
  53   if (Encoding & dwarf::DW_EH_PE_pcrel) {
  54     MCContext &Ctx = Streamer.getContext();
  55     return SparcMCExpr::create(SparcMCExpr::VK_Sparc_R_DISP32,
  56                                MCSymbolRefExpr::create(Sym, Ctx), Ctx);
  57   }
  58
  59   return MCAsmInfo::getExprForPersonalitySymbol(Sym, Encoding, Streamer);
  60 }
  61
  62 const MCExpr*
  63 SparcELFMCAsmInfo::getExprForFDESymbol(const MCSymbol *Sym,
  64                                        unsigned Encoding,
  65                                        MCStreamer &Streamer) const {
  66   if (Encoding & dwarf::DW_EH_PE_pcrel) {
  67     MCContext &Ctx = Streamer.getContext();
  68     return SparcMCExpr::create(SparcMCExpr::VK_Sparc_R_DISP32,
  69                                MCSymbolRefExpr::create(Sym, Ctx), Ctx);
  70   }
  71   return MCAsmInfo::getExprForFDESymbol(Sym, Encoding, Streamer);
  72 }