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https://github.com/c64scene-ar/llvm-6502.git
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3c733ea064
This matches what gnu as does and implementing this is easier than arguing about it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199181 91177308-0d34-0410-b5e6-96231b3b80d8
96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
//===-- MipsTargetStreamer.cpp - Mips Target Streamer Methods -------------===//
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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 provides Mips specific target streamer methods.
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//
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//===----------------------------------------------------------------------===//
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#include "MipsTargetStreamer.h"
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#include "llvm/MC/MCELF.h"
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#include "llvm/MC/MCSymbol.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ELF.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FormattedStream.h"
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using namespace llvm;
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static cl::opt<bool> PrintHackDirectives("print-hack-directives",
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cl::init(false), cl::Hidden);
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// Pin vtable to this file.
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void MipsTargetStreamer::anchor() {}
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MipsTargetAsmStreamer::MipsTargetAsmStreamer(formatted_raw_ostream &OS)
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: OS(OS) {}
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void MipsTargetAsmStreamer::emitMipsHackELFFlags(unsigned Flags) {
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if (!PrintHackDirectives)
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return;
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OS << "\t.mips_hack_elf_flags 0x";
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OS.write_hex(Flags);
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OS << '\n';
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}
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void MipsTargetAsmStreamer::emitDirectiveSetMicroMips() {
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OS << "\t.set\tmicromips\n";
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}
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void MipsTargetAsmStreamer::emitDirectiveSetNoMicroMips() {
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OS << "\t.set\tnomicromips\n";
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}
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void MipsTargetAsmStreamer::emitDirectiveAbiCalls() { OS << "\t.abicalls\n"; }
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void MipsTargetAsmStreamer::emitDirectiveOptionPic0() {
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OS << "\t.option\tpic0\n";
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}
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// This part is for ELF object output.
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MipsTargetELFStreamer::MipsTargetELFStreamer() {}
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void MipsTargetELFStreamer::emitLabel(MCSymbol *Symbol) {
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MCSymbolData &Data = getStreamer().getOrCreateSymbolData(Symbol);
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// The "other" values are stored in the last 6 bits of the second byte
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// The traditional defines for STO values assume the full byte and thus
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// the shift to pack it.
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if (isMicroMipsEnabled())
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MCELF::setOther(Data, ELF::STO_MIPS_MICROMIPS >> 2);
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}
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MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
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return static_cast<MCELFStreamer &>(*Streamer);
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}
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void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
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MCAssembler &MCA = getStreamer().getAssembler();
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MCA.setELFHeaderEFlags(Flags);
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}
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void MipsTargetELFStreamer::emitDirectiveSetMicroMips() {
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MicroMipsEnabled = true;
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}
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void MipsTargetELFStreamer::emitDirectiveSetNoMicroMips() {
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MicroMipsEnabled = false;
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}
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void MipsTargetELFStreamer::emitDirectiveAbiCalls() {
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MCAssembler &MCA = getStreamer().getAssembler();
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unsigned Flags = MCA.getELFHeaderEFlags();
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Flags |= ELF::EF_MIPS_CPIC;
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MCA.setELFHeaderEFlags(Flags);
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}
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void MipsTargetELFStreamer::emitDirectiveOptionPic0() {
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MCAssembler &MCA = getStreamer().getAssembler();
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unsigned Flags = MCA.getELFHeaderEFlags();
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Flags &= ~ELF::EF_MIPS_PIC;
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MCA.setELFHeaderEFlags(Flags);
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}
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