1 //===-- MipsTargetStreamer.cpp - Mips Target Streamer Methods -------------===//
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 Mips specific target streamer methods.
12 //===----------------------------------------------------------------------===//
14 #include "MipsTargetStreamer.h"
15 #include "llvm/MC/MCELF.h"
16 #include "llvm/MC/MCSymbol.h"
17 #include "llvm/Support/CommandLine.h"
18 #include "llvm/Support/ELF.h"
19 #include "llvm/Support/ErrorHandling.h"
20 #include "llvm/Support/FormattedStream.h"
24 static cl::opt<bool> PrintHackDirectives("print-hack-directives",
25 cl::init(false), cl::Hidden);
27 // Pin vtable to this file.
28 void MipsTargetStreamer::anchor() {}
30 MipsTargetAsmStreamer::MipsTargetAsmStreamer(formatted_raw_ostream &OS)
33 void MipsTargetAsmStreamer::emitMipsHackELFFlags(unsigned Flags) {
34 if (!PrintHackDirectives)
37 OS << "\t.mips_hack_elf_flags 0x";
42 void MipsTargetAsmStreamer::emitDirectiveSetMicroMips() {
43 OS << "\t.set\tmicromips\n";
46 void MipsTargetAsmStreamer::emitDirectiveSetNoMicroMips() {
47 OS << "\t.set\tnomicromips\n";
50 void MipsTargetAsmStreamer::emitDirectiveAbiCalls() { OS << "\t.abicalls\n"; }
51 void MipsTargetAsmStreamer::emitDirectiveOptionPic0() {
52 OS << "\t.option\tpic0\n";
55 // This part is for ELF object output.
56 MipsTargetELFStreamer::MipsTargetELFStreamer() {}
58 void MipsTargetELFStreamer::emitLabel(MCSymbol *Symbol) {
59 MCSymbolData &Data = getStreamer().getOrCreateSymbolData(Symbol);
60 // The "other" values are stored in the last 6 bits of the second byte
61 // The traditional defines for STO values assume the full byte and thus
62 // the shift to pack it.
63 if (isMicroMipsEnabled())
64 MCELF::setOther(Data, ELF::STO_MIPS_MICROMIPS >> 2);
67 MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
68 return static_cast<MCELFStreamer &>(*Streamer);
71 void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
72 MCAssembler &MCA = getStreamer().getAssembler();
73 MCA.setELFHeaderEFlags(Flags);
76 void MipsTargetELFStreamer::emitDirectiveSetMicroMips() {
77 MicroMipsEnabled = true;
80 void MipsTargetELFStreamer::emitDirectiveSetNoMicroMips() {
81 MicroMipsEnabled = false;
84 void MipsTargetELFStreamer::emitDirectiveAbiCalls() {
85 MCAssembler &MCA = getStreamer().getAssembler();
86 unsigned Flags = MCA.getELFHeaderEFlags();
87 Flags |= ELF::EF_MIPS_CPIC;
88 MCA.setELFHeaderEFlags(Flags);
90 void MipsTargetELFStreamer::emitDirectiveOptionPic0() {
91 MCAssembler &MCA = getStreamer().getAssembler();
92 unsigned Flags = MCA.getELFHeaderEFlags();
93 Flags &= ~ELF::EF_MIPS_PIC;
94 MCA.setELFHeaderEFlags(Flags);