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62 lines
1.9 KiB
62 lines
1.9 KiB
4 months ago
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//===-- BPFAsmPrinter.cpp - BPF LLVM assembly writer ----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains a printer that converts from our internal representation
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// of machine-dependent LLVM code to the BPF assembly language.
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//
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//===----------------------------------------------------------------------===//
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#include "BPF.h"
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#include "BPFInstrInfo.h"
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#include "BPFMCInstLower.h"
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#include "BPFTargetMachine.h"
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#include "InstPrinter/BPFInstPrinter.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MachineConstantPool.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCSymbol.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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#define DEBUG_TYPE "asm-printer"
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namespace {
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class BPFAsmPrinter : public AsmPrinter {
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public:
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explicit BPFAsmPrinter(TargetMachine &TM, std::unique_ptr<MCStreamer> Streamer)
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: AsmPrinter(TM, std::move(Streamer)) {}
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const char *getPassName() const override { return "BPF Assembly Printer"; }
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void EmitInstruction(const MachineInstr *MI) override;
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};
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}
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void BPFAsmPrinter::EmitInstruction(const MachineInstr *MI) {
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BPFMCInstLower MCInstLowering(OutContext, *this);
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MCInst TmpInst;
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MCInstLowering.Lower(MI, TmpInst);
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EmitToStreamer(*OutStreamer, TmpInst);
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}
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// Force static initialization.
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extern "C" void LLVMInitializeBPFAsmPrinter() {
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RegisterAsmPrinter<BPFAsmPrinter> X(TheBPFleTarget);
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RegisterAsmPrinter<BPFAsmPrinter> Y(TheBPFbeTarget);
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RegisterAsmPrinter<BPFAsmPrinter> Z(TheBPFTarget);
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}
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