diff options
Diffstat (limited to 'lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp')
| -rw-r--r-- | lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp | 117 |
1 files changed, 87 insertions, 30 deletions
diff --git a/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp index 1e092f2..64d7cab 100644 --- a/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp +++ b/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp @@ -43,6 +43,9 @@ void MipsTargetStreamer::emitDirectiveSetNoMacro() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMsa() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetNoMsa() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetAt() { forbidModuleDirective(); } +void MipsTargetStreamer::emitDirectiveSetAtWithArg(unsigned RegNo) { + forbidModuleDirective(); +} void MipsTargetStreamer::emitDirectiveSetNoAt() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveEnd(StringRef Name) {} void MipsTargetStreamer::emitDirectiveEnt(const MCSymbol &Symbol) {} @@ -67,9 +70,13 @@ void MipsTargetStreamer::emitDirectiveSetMips4() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMips5() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMips32() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMips32R2() { forbidModuleDirective(); } +void MipsTargetStreamer::emitDirectiveSetMips32R3() { forbidModuleDirective(); } +void MipsTargetStreamer::emitDirectiveSetMips32R5() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMips32R6() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMips64() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMips64R2() { forbidModuleDirective(); } +void MipsTargetStreamer::emitDirectiveSetMips64R3() { forbidModuleDirective(); } +void MipsTargetStreamer::emitDirectiveSetMips64R5() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetMips64R6() { forbidModuleDirective(); } void MipsTargetStreamer::emitDirectiveSetPop() {} void MipsTargetStreamer::emitDirectiveSetPush() {} @@ -144,6 +151,11 @@ void MipsTargetAsmStreamer::emitDirectiveSetAt() { MipsTargetStreamer::emitDirectiveSetAt(); } +void MipsTargetAsmStreamer::emitDirectiveSetAtWithArg(unsigned RegNo) { + OS << "\t.set\tat=$" << Twine(RegNo) << "\n"; + MipsTargetStreamer::emitDirectiveSetAtWithArg(RegNo); +} + void MipsTargetAsmStreamer::emitDirectiveSetNoAt() { OS << "\t.set\tnoat\n"; MipsTargetStreamer::emitDirectiveSetNoAt(); @@ -223,6 +235,16 @@ void MipsTargetAsmStreamer::emitDirectiveSetMips32R2() { MipsTargetStreamer::emitDirectiveSetMips32R2(); } +void MipsTargetAsmStreamer::emitDirectiveSetMips32R3() { + OS << "\t.set\tmips32r3\n"; + MipsTargetStreamer::emitDirectiveSetMips32R3(); +} + +void MipsTargetAsmStreamer::emitDirectiveSetMips32R5() { + OS << "\t.set\tmips32r5\n"; + MipsTargetStreamer::emitDirectiveSetMips32R5(); +} + void MipsTargetAsmStreamer::emitDirectiveSetMips32R6() { OS << "\t.set\tmips32r6\n"; MipsTargetStreamer::emitDirectiveSetMips32R6(); @@ -238,6 +260,16 @@ void MipsTargetAsmStreamer::emitDirectiveSetMips64R2() { MipsTargetStreamer::emitDirectiveSetMips64R2(); } +void MipsTargetAsmStreamer::emitDirectiveSetMips64R3() { + OS << "\t.set\tmips64r3\n"; + MipsTargetStreamer::emitDirectiveSetMips64R3(); +} + +void MipsTargetAsmStreamer::emitDirectiveSetMips64R5() { + OS << "\t.set\tmips64r5\n"; + MipsTargetStreamer::emitDirectiveSetMips64R5(); +} + void MipsTargetAsmStreamer::emitDirectiveSetMips64R6() { OS << "\t.set\tmips64r6\n"; MipsTargetStreamer::emitDirectiveSetMips64R6(); @@ -335,19 +367,32 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI) : MipsTargetStreamer(S), MicroMipsEnabled(false), STI(STI) { MCAssembler &MCA = getStreamer().getAssembler(); - uint64_t Features = STI.getFeatureBits(); Triple T(STI.getTargetTriple()); Pic = (MCA.getContext().getObjectFileInfo()->getRelocM() == Reloc::PIC_) ? true : false; - // Update e_header flags - unsigned EFlags = 0; + uint64_t Features = STI.getFeatureBits(); + + // Set the header flags that we can in the constructor. + // FIXME: This is a fairly terrible hack. We set the rest + // of these in the destructor. The problem here is two-fold: + // + // a: Some of the eflags can be set/reset by directives. + // b: There aren't any usage paths that initialize the ABI + // pointer until after we initialize either an assembler + // or the target machine. + // We can fix this by making the target streamer construct + // the ABI, but this is fraught with wide ranging dependency + // issues as well. + unsigned EFlags = MCA.getELFHeaderEFlags(); // Architecture if (Features & Mips::FeatureMips64r6) EFlags |= ELF::EF_MIPS_ARCH_64R6; - else if (Features & Mips::FeatureMips64r2) + else if (Features & Mips::FeatureMips64r2 || + Features & Mips::FeatureMips64r3 || + Features & Mips::FeatureMips64r5) EFlags |= ELF::EF_MIPS_ARCH_64R2; else if (Features & Mips::FeatureMips64) EFlags |= ELF::EF_MIPS_ARCH_64; @@ -359,7 +404,9 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S, EFlags |= ELF::EF_MIPS_ARCH_3; else if (Features & Mips::FeatureMips32r6) EFlags |= ELF::EF_MIPS_ARCH_32R6; - else if (Features & Mips::FeatureMips32r2) + else if (Features & Mips::FeatureMips32r2 || + Features & Mips::FeatureMips32r3 || + Features & Mips::FeatureMips32r5) EFlags |= ELF::EF_MIPS_ARCH_32R2; else if (Features & Mips::FeatureMips32) EFlags |= ELF::EF_MIPS_ARCH_32; @@ -368,19 +415,6 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S, else EFlags |= ELF::EF_MIPS_ARCH_1; - // ABI - // N64 does not require any ABI bits. - if (Features & Mips::FeatureO32) - EFlags |= ELF::EF_MIPS_ABI_O32; - else if (Features & Mips::FeatureN32) - EFlags |= ELF::EF_MIPS_ABI2; - - if (Features & Mips::FeatureGP64Bit) { - if (Features & Mips::FeatureO32) - EFlags |= ELF::EF_MIPS_32BITMODE; /* Compatibility Mode */ - } else if (Features & Mips::FeatureMips64r2 || Features & Mips::FeatureMips64) - EFlags |= ELF::EF_MIPS_32BITMODE; - // Other options. if (Features & Mips::FeatureNaN2008) EFlags |= ELF::EF_MIPS_NAN2008; @@ -388,8 +422,6 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S, // -mabicalls and -mplt are not implemented but we should act as if they were // given. EFlags |= ELF::EF_MIPS_CPIC; - if (Features & Mips::FeatureN64) - EFlags |= ELF::EF_MIPS_PIC; MCA.setELFHeaderEFlags(EFlags); } @@ -424,6 +456,32 @@ void MipsTargetELFStreamer::finish() { DataSectionData.setAlignment(std::max(16u, DataSectionData.getAlignment())); BSSSectionData.setAlignment(std::max(16u, BSSSectionData.getAlignment())); + uint64_t Features = STI.getFeatureBits(); + + // Update e_header flags. See the FIXME and comment above in + // the constructor for a full rundown on this. + unsigned EFlags = MCA.getELFHeaderEFlags(); + + // ABI + // N64 does not require any ABI bits. + if (getABI().IsO32()) + EFlags |= ELF::EF_MIPS_ABI_O32; + else if (getABI().IsN32()) + EFlags |= ELF::EF_MIPS_ABI2; + + if (Features & Mips::FeatureGP64Bit) { + if (getABI().IsO32()) + EFlags |= ELF::EF_MIPS_32BITMODE; /* Compatibility Mode */ + } else if (Features & Mips::FeatureMips64r2 || Features & Mips::FeatureMips64) + EFlags |= ELF::EF_MIPS_32BITMODE; + + // If we've set the cpic eflag and we're n64, go ahead and set the pic + // one as well. + if (EFlags & ELF::EF_MIPS_CPIC && getABI().IsN64()) + EFlags |= ELF::EF_MIPS_PIC; + + MCA.setELFHeaderEFlags(EFlags); + // Emit all the option records. // At the moment we are only emitting .Mips.options (ODK_REGINFO) and // .reginfo. @@ -493,9 +551,8 @@ void MipsTargetELFStreamer::emitDirectiveEnd(StringRef Name) { MCContext &Context = MCA.getContext(); MCStreamer &OS = getStreamer(); - const MCSectionELF *Sec = Context.getELFSection(".pdr", ELF::SHT_PROGBITS, - ELF::SHF_ALLOC | ELF::SHT_REL, - SectionKind::getMetadata()); + const MCSectionELF *Sec = Context.getELFSection( + ".pdr", ELF::SHT_PROGBITS, ELF::SHF_ALLOC | ELF::SHT_REL); const MCSymbolRefExpr *ExprRef = MCSymbolRefExpr::Create(Name, MCSymbolRefExpr::VK_None, Context); @@ -604,7 +661,7 @@ void MipsTargetELFStreamer::emitDirectiveCpLoad(unsigned RegNo) { // addui $gp, $gp, %lo(_gp_disp) // addu $gp, $gp, $reg // when support for position independent code is enabled. - if (!Pic || (isN32() || isN64())) + if (!Pic || (getABI().IsN32() || getABI().IsN64())) return; // There's a GNU extension controlled by -mno-shared that allows @@ -653,7 +710,7 @@ void MipsTargetELFStreamer::emitDirectiveCpsetup(unsigned RegNo, const MCSymbol &Sym, bool IsReg) { // Only N32 and N64 emit anything for .cpsetup iff PIC is set. - if (!Pic || !(isN32() || isN64())) + if (!Pic || !(getABI().IsN32() || getABI().IsN64())) return; MCAssembler &MCA = getStreamer().getAssembler(); @@ -677,9 +734,10 @@ void MipsTargetELFStreamer::emitDirectiveCpsetup(unsigned RegNo, Inst.clear(); const MCSymbolRefExpr *HiExpr = MCSymbolRefExpr::Create( - Sym.getName(), MCSymbolRefExpr::VK_Mips_GPOFF_HI, MCA.getContext()); + &Sym, MCSymbolRefExpr::VK_Mips_GPOFF_HI, MCA.getContext()); const MCSymbolRefExpr *LoExpr = MCSymbolRefExpr::Create( - Sym.getName(), MCSymbolRefExpr::VK_Mips_GPOFF_LO, MCA.getContext()); + &Sym, MCSymbolRefExpr::VK_Mips_GPOFF_LO, MCA.getContext()); + // lui $gp, %hi(%neg(%gp_rel(funcSym))) Inst.setOpcode(Mips::LUi); Inst.addOperand(MCOperand::CreateReg(Mips::GP)); @@ -709,9 +767,8 @@ void MipsTargetELFStreamer::emitMipsAbiFlags() { MCAssembler &MCA = getStreamer().getAssembler(); MCContext &Context = MCA.getContext(); MCStreamer &OS = getStreamer(); - const MCSectionELF *Sec = - Context.getELFSection(".MIPS.abiflags", ELF::SHT_MIPS_ABIFLAGS, - ELF::SHF_ALLOC, SectionKind::getMetadata(), 24, ""); + const MCSectionELF *Sec = Context.getELFSection( + ".MIPS.abiflags", ELF::SHT_MIPS_ABIFLAGS, ELF::SHF_ALLOC, 24, ""); MCSectionData &ABIShndxSD = MCA.getOrCreateSectionData(*Sec); ABIShndxSD.setAlignment(8); OS.SwitchSection(Sec); |