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";
41 void MipsTargetAsmStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
42 if (!PrintHackDirectives)
45 OS << "\t.mips_hack_stocg ";
51 void MipsTargetAsmStreamer::emitDirectiveAbiCalls() { OS << "\t.abicalls\n"; }
52 void MipsTargetAsmStreamer::emitDirectiveOptionPic0() {
53 OS << "\t.option\tpic0\n";
56 // This part is for ELF object output.
57 MipsTargetELFStreamer::MipsTargetELFStreamer() {}
59 MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
60 return static_cast<MCELFStreamer &>(*Streamer);
63 void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
64 MCAssembler &MCA = getStreamer().getAssembler();
65 MCA.setELFHeaderEFlags(Flags);
68 // Set a symbol's STO flags.
69 void MipsTargetELFStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
70 MCSymbolData &Data = getStreamer().getOrCreateSymbolData(Sym);
71 // The "other" values are stored in the last 6 bits of the second byte
72 // The traditional defines for STO values assume the full byte and thus
73 // the shift to pack it.
74 MCELF::setOther(Data, Val >> 2);
76 void MipsTargetELFStreamer::emitDirectiveAbiCalls() {
77 MCAssembler &MCA = getStreamer().getAssembler();
78 unsigned Flags = MCA.getELFHeaderEFlags();
79 Flags |= ELF::EF_MIPS_CPIC;
80 MCA.setELFHeaderEFlags(Flags);
82 void MipsTargetELFStreamer::emitDirectiveOptionPic0() {
83 MCAssembler &MCA = getStreamer().getAssembler();
84 unsigned Flags = MCA.getELFHeaderEFlags();
85 Flags &= ~ELF::EF_MIPS_PIC;
86 MCA.setELFHeaderEFlags(Flags);