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, const MCTargetOptions &Options) {
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
54