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