forked from OSchip/llvm-project
120 lines
4.2 KiB
C++
120 lines
4.2 KiB
C++
//===-- BPFMCTargetDesc.cpp - BPF Target Descriptions ---------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file provides BPF specific target descriptions.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "BPF.h"
|
|
#include "BPFMCTargetDesc.h"
|
|
#include "BPFMCAsmInfo.h"
|
|
#include "InstPrinter/BPFInstPrinter.h"
|
|
#include "llvm/MC/MCCodeGenInfo.h"
|
|
#include "llvm/MC/MCInstrInfo.h"
|
|
#include "llvm/MC/MCRegisterInfo.h"
|
|
#include "llvm/MC/MCStreamer.h"
|
|
#include "llvm/MC/MCSubtargetInfo.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/TargetRegistry.h"
|
|
|
|
#define GET_INSTRINFO_MC_DESC
|
|
#include "BPFGenInstrInfo.inc"
|
|
|
|
#define GET_SUBTARGETINFO_MC_DESC
|
|
#include "BPFGenSubtargetInfo.inc"
|
|
|
|
#define GET_REGINFO_MC_DESC
|
|
#include "BPFGenRegisterInfo.inc"
|
|
|
|
using namespace llvm;
|
|
|
|
static MCInstrInfo *createBPFMCInstrInfo() {
|
|
MCInstrInfo *X = new MCInstrInfo();
|
|
InitBPFMCInstrInfo(X);
|
|
return X;
|
|
}
|
|
|
|
static MCRegisterInfo *createBPFMCRegisterInfo(const Triple &TT) {
|
|
MCRegisterInfo *X = new MCRegisterInfo();
|
|
InitBPFMCRegisterInfo(X, BPF::R11 /* RAReg doesn't exist */);
|
|
return X;
|
|
}
|
|
|
|
static MCSubtargetInfo *createBPFMCSubtargetInfo(const Triple &TT,
|
|
StringRef CPU, StringRef FS) {
|
|
return createBPFMCSubtargetInfoImpl(TT, CPU, FS);
|
|
}
|
|
|
|
static MCCodeGenInfo *createBPFMCCodeGenInfo(const Triple &TT, Reloc::Model RM,
|
|
CodeModel::Model CM,
|
|
CodeGenOpt::Level OL) {
|
|
MCCodeGenInfo *X = new MCCodeGenInfo();
|
|
X->initMCCodeGenInfo(RM, CM, OL);
|
|
return X;
|
|
}
|
|
|
|
static MCStreamer *createBPFMCStreamer(const Triple &T,
|
|
MCContext &Ctx, MCAsmBackend &MAB,
|
|
raw_pwrite_stream &OS, MCCodeEmitter *Emitter,
|
|
bool RelaxAll) {
|
|
return createELFStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
|
|
}
|
|
|
|
static MCInstPrinter *createBPFMCInstPrinter(const Triple &T,
|
|
unsigned SyntaxVariant,
|
|
const MCAsmInfo &MAI,
|
|
const MCInstrInfo &MII,
|
|
const MCRegisterInfo &MRI) {
|
|
if (SyntaxVariant == 0)
|
|
return new BPFInstPrinter(MAI, MII, MRI);
|
|
return 0;
|
|
}
|
|
|
|
extern "C" void LLVMInitializeBPFTargetMC() {
|
|
for (Target *T : {&TheBPFleTarget, &TheBPFbeTarget, &TheBPFTarget}) {
|
|
// Register the MC asm info.
|
|
RegisterMCAsmInfo<BPFMCAsmInfo> X(*T);
|
|
|
|
// Register the MC codegen info.
|
|
TargetRegistry::RegisterMCCodeGenInfo(*T, createBPFMCCodeGenInfo);
|
|
|
|
// Register the MC instruction info.
|
|
TargetRegistry::RegisterMCInstrInfo(*T, createBPFMCInstrInfo);
|
|
|
|
// Register the MC register info.
|
|
TargetRegistry::RegisterMCRegInfo(*T, createBPFMCRegisterInfo);
|
|
|
|
// Register the MC subtarget info.
|
|
TargetRegistry::RegisterMCSubtargetInfo(*T,
|
|
createBPFMCSubtargetInfo);
|
|
|
|
// Register the object streamer
|
|
TargetRegistry::RegisterELFStreamer(*T, createBPFMCStreamer);
|
|
|
|
// Register the MCInstPrinter.
|
|
TargetRegistry::RegisterMCInstPrinter(*T, createBPFMCInstPrinter);
|
|
}
|
|
|
|
// Register the MC code emitter
|
|
TargetRegistry::RegisterMCCodeEmitter(TheBPFleTarget, createBPFMCCodeEmitter);
|
|
TargetRegistry::RegisterMCCodeEmitter(TheBPFbeTarget, createBPFbeMCCodeEmitter);
|
|
|
|
// Register the ASM Backend
|
|
TargetRegistry::RegisterMCAsmBackend(TheBPFleTarget, createBPFAsmBackend);
|
|
TargetRegistry::RegisterMCAsmBackend(TheBPFbeTarget, createBPFbeAsmBackend);
|
|
|
|
if (sys::IsLittleEndianHost) {
|
|
TargetRegistry::RegisterMCCodeEmitter(TheBPFTarget, createBPFMCCodeEmitter);
|
|
TargetRegistry::RegisterMCAsmBackend(TheBPFTarget, createBPFAsmBackend);
|
|
} else {
|
|
TargetRegistry::RegisterMCCodeEmitter(TheBPFTarget, createBPFbeMCCodeEmitter);
|
|
TargetRegistry::RegisterMCAsmBackend(TheBPFTarget, createBPFbeAsmBackend);
|
|
}
|
|
}
|