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
anchor()23 void SparcELFMCAsmInfo::anchor() {}
24
SparcELFMCAsmInfo(const Triple & TheTriple)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*
getExprForPersonalitySymbol(const MCSymbol * Sym,unsigned Encoding,MCStreamer & Streamer) const50 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*
getExprForFDESymbol(const MCSymbol * Sym,unsigned Encoding,MCStreamer & Streamer) const63 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 }
73