1 //===-- BPFMCTargetDesc.cpp - BPF Target Descriptions ---------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file provides BPF specific target descriptions.
12 //===----------------------------------------------------------------------===//
15 #include "BPFMCTargetDesc.h"
16 #include "BPFMCAsmInfo.h"
17 #include "InstPrinter/BPFInstPrinter.h"
18 #include "llvm/MC/MCCodeGenInfo.h"
19 #include "llvm/MC/MCInstrInfo.h"
20 #include "llvm/MC/MCRegisterInfo.h"
21 #include "llvm/MC/MCStreamer.h"
22 #include "llvm/MC/MCSubtargetInfo.h"
23 #include "llvm/Support/ErrorHandling.h"
24 #include "llvm/Support/TargetRegistry.h"
26 #define GET_INSTRINFO_MC_DESC
27 #include "BPFGenInstrInfo.inc"
29 #define GET_SUBTARGETINFO_MC_DESC
30 #include "BPFGenSubtargetInfo.inc"
32 #define GET_REGINFO_MC_DESC
33 #include "BPFGenRegisterInfo.inc"
37 static MCInstrInfo *createBPFMCInstrInfo() {
38 MCInstrInfo *X = new MCInstrInfo();
39 InitBPFMCInstrInfo(X);
43 static MCRegisterInfo *createBPFMCRegisterInfo(StringRef TT) {
44 MCRegisterInfo *X = new MCRegisterInfo();
45 InitBPFMCRegisterInfo(X, BPF::R11 /* RAReg doesn't exist */);
49 static MCSubtargetInfo *createBPFMCSubtargetInfo(StringRef TT, StringRef CPU,
51 MCSubtargetInfo *X = new MCSubtargetInfo();
52 InitBPFMCSubtargetInfo(X, TT, CPU, FS);
56 static MCCodeGenInfo *createBPFMCCodeGenInfo(StringRef TT, Reloc::Model RM,
58 CodeGenOpt::Level OL) {
59 MCCodeGenInfo *X = new MCCodeGenInfo();
60 X->initMCCodeGenInfo(RM, CM, OL);
64 static MCStreamer *createBPFMCStreamer(const Triple &T,
65 MCContext &Ctx, MCAsmBackend &MAB,
66 raw_pwrite_stream &OS, MCCodeEmitter *Emitter,
68 return createELFStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
71 static MCInstPrinter *createBPFMCInstPrinter(const Triple &T,
72 unsigned SyntaxVariant,
74 const MCInstrInfo &MII,
75 const MCRegisterInfo &MRI) {
76 if (SyntaxVariant == 0)
77 return new BPFInstPrinter(MAI, MII, MRI);
81 extern "C" void LLVMInitializeBPFTargetMC() {
82 for (Target *T : {&TheBPFleTarget, &TheBPFbeTarget, &TheBPFTarget}) {
83 // Register the MC asm info.
84 RegisterMCAsmInfo<BPFMCAsmInfo> X(*T);
86 // Register the MC codegen info.
87 TargetRegistry::RegisterMCCodeGenInfo(*T, createBPFMCCodeGenInfo);
89 // Register the MC instruction info.
90 TargetRegistry::RegisterMCInstrInfo(*T, createBPFMCInstrInfo);
92 // Register the MC register info.
93 TargetRegistry::RegisterMCRegInfo(*T, createBPFMCRegisterInfo);
95 // Register the MC subtarget info.
96 TargetRegistry::RegisterMCSubtargetInfo(*T,
97 createBPFMCSubtargetInfo);
99 // Register the object streamer
100 TargetRegistry::RegisterELFStreamer(*T, createBPFMCStreamer);
102 // Register the MCInstPrinter.
103 TargetRegistry::RegisterMCInstPrinter(*T, createBPFMCInstPrinter);
106 // Register the MC code emitter
107 TargetRegistry::RegisterMCCodeEmitter(TheBPFleTarget, createBPFMCCodeEmitter);
108 TargetRegistry::RegisterMCCodeEmitter(TheBPFbeTarget, createBPFbeMCCodeEmitter);
110 // Register the ASM Backend
111 TargetRegistry::RegisterMCAsmBackend(TheBPFleTarget, createBPFAsmBackend);
112 TargetRegistry::RegisterMCAsmBackend(TheBPFbeTarget, createBPFbeAsmBackend);
114 if (sys::IsLittleEndianHost) {
115 TargetRegistry::RegisterMCCodeEmitter(TheBPFTarget, createBPFMCCodeEmitter);
116 TargetRegistry::RegisterMCAsmBackend(TheBPFTarget, createBPFAsmBackend);
118 TargetRegistry::RegisterMCCodeEmitter(TheBPFTarget, createBPFbeMCCodeEmitter);
119 TargetRegistry::RegisterMCAsmBackend(TheBPFTarget, createBPFbeAsmBackend);