lib/Target/BPF/MCTargetDesc/BPFMCAsmInfo.h

   1 //===-- BPFMCAsmInfo.h - BPF asm properties -------------------*- C++ -*--====//
   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 declaration of the BPFMCAsmInfo class.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_BPF_MCTARGETDESC_BPFMCASMINFO_H
  14 #define LLVM_LIB_TARGET_BPF_MCTARGETDESC_BPFMCASMINFO_H
  15
  16 #include "llvm/ADT/Triple.h"
  17 #include "llvm/MC/MCAsmInfo.h"
  18
  19 namespace llvm {
  20 class Target;
  21
  22 class BPFMCAsmInfo : public MCAsmInfo {
  23 public:
  24   explicit BPFMCAsmInfo(const Triple &TT) {
  25     if (TT.getArch() == Triple::bpfeb)
  26       IsLittleEndian = false;
  27
  28     PrivateGlobalPrefix = ".L";
  29     WeakRefDirective = "\t.weak\t";
  30
  31     UsesELFSectionDirectiveForBSS = true;
  32     HasSingleParameterDotFile = true;
  33     HasDotTypeDotSizeDirective = true;
  34
  35     SupportsDebugInformation = true;
  36     ExceptionsType = ExceptionHandling::DwarfCFI;
  37     MinInstAlignment = 8;
  38
  39     // the default is 4 and it only affects dwarf elf output
  40     // so if not set correctly, the dwarf data will be
  41     // messed up in random places by 4 bytes. .debug_line
  42     // section will be parsable, but with odd offsets and
  43     // line numbers, etc.
  44     CodePointerSize = 8;
  45   }
  46
  47   void setDwarfUsesRelocationsAcrossSections(bool enable) {
  48     DwarfUsesRelocationsAcrossSections = enable;
  49   }
  50 };
  51 }
  52
  53 #endif