1//===-- SparcTargetStreamer.cpp - Sparc Target Streamer Methods -----------===//
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 provides Sparc specific target streamer methods.
10//
11//===----------------------------------------------------------------------===//
12
13#include "SparcTargetStreamer.h"
14#include "SparcInstPrinter.h"
15#include "SparcMCTargetDesc.h"
16#include "llvm/BinaryFormat/ELF.h"
17#include "llvm/MC/MCELFObjectWriter.h"
18#include "llvm/MC/MCRegister.h"
19#include "llvm/MC/MCSubtargetInfo.h"
20#include "llvm/Support/FormattedStream.h"
21
22using namespace llvm;
23
24static unsigned getEFlagsForFeatureSet(const MCSubtargetInfo &STI) {
25 unsigned EFlags = 0;
26
27 if (STI.hasFeature(Feature: Sparc::FeatureV8Plus))
28 EFlags |= ELF::EF_SPARC_32PLUS;
29
30 if (STI.hasFeature(Feature: Sparc::FeatureVIS))
31 EFlags |= ELF::EF_SPARC_SUN_US1;
32
33 if (STI.hasFeature(Feature: Sparc::FeatureVIS2))
34 EFlags |= ELF::EF_SPARC_SUN_US3;
35
36 // VIS 3 and other ISA extensions doesn't set any flags.
37
38 return EFlags;
39}
40
41// pin vtable to this file
42SparcTargetStreamer::SparcTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
43
44void SparcTargetStreamer::anchor() {}
45
46SparcTargetAsmStreamer::SparcTargetAsmStreamer(MCStreamer &S,
47 formatted_raw_ostream &OS)
48 : SparcTargetStreamer(S), OS(OS) {}
49
50void SparcTargetAsmStreamer::emitSparcRegisterIgnore(unsigned reg) {
51 OS << "\t.register "
52 << "%" << StringRef(SparcInstPrinter::getRegisterName(Reg: reg)).lower()
53 << ", #ignore\n";
54}
55
56void SparcTargetAsmStreamer::emitSparcRegisterScratch(unsigned reg) {
57 OS << "\t.register "
58 << "%" << StringRef(SparcInstPrinter::getRegisterName(Reg: reg)).lower()
59 << ", #scratch\n";
60}
61
62SparcTargetELFStreamer::SparcTargetELFStreamer(MCStreamer &S,
63 const MCSubtargetInfo &STI)
64 : SparcTargetStreamer(S) {
65 ELFObjectWriter &W = getStreamer().getWriter();
66 unsigned EFlags = W.getELFHeaderEFlags();
67
68 EFlags |= getEFlagsForFeatureSet(STI);
69
70 W.setELFHeaderEFlags(EFlags);
71}
72
73MCELFStreamer &SparcTargetELFStreamer::getStreamer() {
74 return static_cast<MCELFStreamer &>(Streamer);
75}
76