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 "llvm/BinaryFormat/Dwarf.h"
15#include "llvm/BinaryFormat/ELF.h"
16#include "llvm/MC/MCExpr.h"
17#include "llvm/MC/MCStreamer.h"
18#include "llvm/MC/MCTargetOptions.h"
19#include "llvm/TargetParser/Triple.h"
20
21using namespace llvm;
22
23void SparcELFMCAsmInfo::anchor() {}
24
25SparcELFMCAsmInfo::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 UsesELFSectionDirectiveForBSS = true;
44}
45
46const MCExpr*
47SparcELFMCAsmInfo::getExprForPersonalitySymbol(const MCSymbol *Sym,
48 unsigned Encoding,
49 MCStreamer &Streamer) const {
50 if (Encoding & dwarf::DW_EH_PE_pcrel) {
51 MCContext &Ctx = Streamer.getContext();
52 return MCSpecifierExpr::create(Sym, S: ELF::R_SPARC_DISP32, Ctx);
53 }
54
55 return MCAsmInfo::getExprForPersonalitySymbol(Sym, Encoding, Streamer);
56}
57
58const MCExpr*
59SparcELFMCAsmInfo::getExprForFDESymbol(const MCSymbol *Sym,
60 unsigned Encoding,
61 MCStreamer &Streamer) const {
62 if (Encoding & dwarf::DW_EH_PE_pcrel) {
63 MCContext &Ctx = Streamer.getContext();
64 return MCSpecifierExpr::create(Sym, S: ELF::R_SPARC_DISP32, Ctx);
65 }
66 return MCAsmInfo::getExprForFDESymbol(Sym, Encoding, Streamer);
67}
68
69void SparcELFMCAsmInfo::printSpecifierExpr(raw_ostream &OS,
70 const MCSpecifierExpr &Expr) const {
71 StringRef S = Sparc::getSpecifierName(S: Expr.getSpecifier());
72 if (!S.empty())
73 OS << '%' << S << '(';
74 printExpr(OS, *Expr.getSubExpr());
75 if (!S.empty())
76 OS << ')';
77}
78