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 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