File Manager

003 File Manager

Current Path: /usr/src/contrib/llvm-project/llvm/lib/Target/MSP430/MCTargetDesc

usr / src / contrib / llvm-project / llvm / lib / Target / MSP430 / MCTargetDesc /

📁 ..
📄 MSP430AsmBackend.cpp(5.94 KB)
📄 MSP430ELFObjectWriter.cpp(2.29 KB)
📄 MSP430ELFStreamer.cpp(2.5 KB)
📄 MSP430FixupKinds.h(1.43 KB)
📄 MSP430InstPrinter.cpp(4.16 KB)
📄 MSP430InstPrinter.h(2.08 KB)
📄 MSP430MCAsmInfo.cpp(944 B)
📄 MSP430MCAsmInfo.h(908 B)
📄 MSP430MCCodeEmitter.cpp(7.15 KB)
📄 MSP430MCTargetDesc.cpp(2.54 KB)
📄 MSP430MCTargetDesc.h(1.98 KB)

Editing: MSP430ELFStreamer.cpp

//===-- MSP430ELFStreamer.cpp - MSP430 ELF Target Streamer Methods --------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file provides MSP430 specific target streamer methods.
//
//===----------------------------------------------------------------------===//

#include "MSP430MCTargetDesc.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"

using namespace llvm;

namespace llvm {

class MSP430TargetELFStreamer : public MCTargetStreamer {
public:
  MCELFStreamer &getStreamer();
  MSP430TargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI);
};

// This part is for ELF object output.
MSP430TargetELFStreamer::MSP430TargetELFStreamer(MCStreamer &S,
                                                 const MCSubtargetInfo &STI)
    : MCTargetStreamer(S) {
  MCAssembler &MCA = getStreamer().getAssembler();
  unsigned EFlags = MCA.getELFHeaderEFlags();
  MCA.setELFHeaderEFlags(EFlags);

// Emit build attributes section according to
  // MSP430 EABI (slaa534.pdf, part 13).
  MCSection *AttributeSection = getStreamer().getContext().getELFSection(
      ".MSP430.attributes", ELF::SHT_MSP430_ATTRIBUTES, 0);
  Streamer.SwitchSection(AttributeSection);

// Format version.
  Streamer.emitInt8(0x41);
  // Subsection length.
  Streamer.emitInt32(22);
  // Vendor name string, zero-terminated.
  Streamer.emitBytes("mspabi");
  Streamer.emitInt8(0);

// Attribute vector scope tag. 1 stands for the entire file.
  Streamer.emitInt8(1);
  // Attribute vector length.
  Streamer.emitInt32(11);
  // OFBA_MSPABI_Tag_ISA(4) = 1, MSP430
  Streamer.emitInt8(4);
  Streamer.emitInt8(1);
  // OFBA_MSPABI_Tag_Code_Model(6) = 1, Small
  Streamer.emitInt8(6);
  Streamer.emitInt8(1);
  // OFBA_MSPABI_Tag_Data_Model(8) = 1, Small
  Streamer.emitInt8(8);
  Streamer.emitInt8(1);
}

MCELFStreamer &MSP430TargetELFStreamer::getStreamer() {
  return static_cast<MCELFStreamer &>(Streamer);
}

MCTargetStreamer *
createMSP430ObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
  const Triple &TT = STI.getTargetTriple();
  if (TT.isOSBinFormatELF())
    return new MSP430TargetELFStreamer(S, STI);
  return nullptr;
}

} // namespace llvm

003 File Manager

Editing: MSP430ELFStreamer.cpp

Upload File

Create Folder