1 files changed, 121 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/BPF/MCTargetDesc/BPFMCTargetDesc.cpp b/contrib/llvm/lib/Target/BPF/MCTargetDesc/BPFMCTargetDesc.cpp
new file mode 100644
index 0000000..7cedba9
--- /dev/null
+++ b/contrib/llvm/lib/Target/BPF/MCTargetDesc/BPFMCTargetDesc.cpp
@@ -0,0 +1,121 @@
+//===-- 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(StringRef TT) {
+  MCRegisterInfo *X = new MCRegisterInfo();
+  InitBPFMCRegisterInfo(X, BPF::R11 /* RAReg doesn't exist */);
+  return X;
+}
+
+static MCSubtargetInfo *createBPFMCSubtargetInfo(StringRef TT, StringRef CPU,
+                                                 StringRef FS) {
+  MCSubtargetInfo *X = new MCSubtargetInfo();
+  InitBPFMCSubtargetInfo(X, TT, CPU, FS);
+  return X;
+}
+
+static MCCodeGenInfo *createBPFMCCodeGenInfo(StringRef 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);
+  }
+}