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::emitDirectiveSetMips16() {
51 OS << "\t.set\tmips16\n";
54 void MipsTargetAsmStreamer::emitDirectiveSetNoMips16() {
55 OS << "\t.set\tnomips16\n";
58 void MipsTargetAsmStreamer::emitDirectiveSetReorder() {
59 OS << "\t.set\treorder\n";
62 void MipsTargetAsmStreamer::emitDirectiveSetNoReorder() {
63 OS << "\t.set\tnoreorder\n";
66 void MipsTargetAsmStreamer::emitDirectiveSetMacro() {
67 OS << "\t.set\tmacro\n";
70 void MipsTargetAsmStreamer::emitDirectiveSetNoMacro() {
71 OS << "\t.set\tnomacro\n";
74 void MipsTargetAsmStreamer::emitDirectiveSetAt() {
78 void MipsTargetAsmStreamer::emitDirectiveSetNoAt() {
79 OS << "\t.set\tnoat\n";
82 void MipsTargetAsmStreamer::emitDirectiveEnd(StringRef Name) {
83 OS << "\t.end\t" << Name << '\n';
86 void MipsTargetAsmStreamer::emitDirectiveEnt(const MCSymbol &Symbol) {
87 OS << "\t.ent\t" << Symbol.getName() << '\n';
90 void MipsTargetAsmStreamer::emitDirectiveAbiCalls() { OS << "\t.abicalls\n"; }
91 void MipsTargetAsmStreamer::emitDirectiveOptionPic0() {
92 OS << "\t.option\tpic0\n";
95 // This part is for ELF object output.
96 MipsTargetELFStreamer::MipsTargetELFStreamer() : MicroMipsEnabled(false) {}
98 void MipsTargetELFStreamer::emitLabel(MCSymbol *Symbol) {
99 if (!isMicroMipsEnabled())
101 MCSymbolData &Data = getStreamer().getOrCreateSymbolData(Symbol);
102 uint8_t Type = MCELF::GetType(Data);
103 if (Type != ELF::STT_FUNC)
106 // The "other" values are stored in the last 6 bits of the second byte
107 // The traditional defines for STO values assume the full byte and thus
108 // the shift to pack it.
109 MCELF::setOther(Data, ELF::STO_MIPS_MICROMIPS >> 2);
112 MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
113 return static_cast<MCELFStreamer &>(*Streamer);
116 void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
117 MCAssembler &MCA = getStreamer().getAssembler();
118 MCA.setELFHeaderEFlags(Flags);
121 void MipsTargetELFStreamer::emitDirectiveSetMicroMips() {
122 MicroMipsEnabled = true;
125 void MipsTargetELFStreamer::emitDirectiveSetNoMicroMips() {
126 MicroMipsEnabled = false;
129 void MipsTargetELFStreamer::emitDirectiveSetMips16() {
130 MCAssembler &MCA = getStreamer().getAssembler();
131 unsigned Flags = MCA.getELFHeaderEFlags();
132 Flags |= ELF::EF_MIPS_ARCH_ASE_M16;
133 MCA.setELFHeaderEFlags(Flags);
136 void MipsTargetELFStreamer::emitDirectiveSetNoMips16() {
140 void MipsTargetELFStreamer::emitDirectiveSetReorder() {
144 void MipsTargetELFStreamer::emitDirectiveSetNoReorder() {
148 void MipsTargetELFStreamer::emitDirectiveSetMacro() {
152 void MipsTargetELFStreamer::emitDirectiveSetNoMacro() {
156 void MipsTargetELFStreamer::emitDirectiveSetAt() {
160 void MipsTargetELFStreamer::emitDirectiveSetNoAt() {
164 void MipsTargetELFStreamer::emitDirectiveEnd(StringRef Name) {
168 void MipsTargetELFStreamer::emitDirectiveEnt(const MCSymbol &Symbol) {
172 void MipsTargetELFStreamer::emitDirectiveAbiCalls() {
173 MCAssembler &MCA = getStreamer().getAssembler();
174 unsigned Flags = MCA.getELFHeaderEFlags();
175 Flags |= ELF::EF_MIPS_CPIC;
176 MCA.setELFHeaderEFlags(Flags);
178 void MipsTargetELFStreamer::emitDirectiveOptionPic0() {
179 MCAssembler &MCA = getStreamer().getAssembler();
180 unsigned Flags = MCA.getELFHeaderEFlags();
181 Flags &= ~ELF::EF_MIPS_PIC;
182 MCA.setELFHeaderEFlags(Flags);